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USB driver update for 3.13-rc1

Browse source 
Here's the big USB driver update for 3.13-rc1.
 
 It includes the usual xhci changes, EHCI updates to get the scheduling
 of USB transactions working better, and a raft of gadget and musb
 updates as well.
 
 All of this has been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Merge tag 'usb-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB driver update from Greg KH:
 "Here's the big USB driver update for 3.13-rc1.

  It includes the usual xhci changes, EHCI updates to get the scheduling
  of USB transactions working better, and a raft of gadget and musb
  updates as well.

  All of this has been in linux-next for a while with no reported
  issues"

* tag 'usb-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (305 commits)
  USB: Maintainers change for usb serial drivers
  usb: usbtest: support container id descriptor test
  usb: usbtest: support superspeed device capbility descriptor test
  usb: usbtest: support usb2 extension descriptor test
  usb: chipidea: only get vbus regulator for non-peripheral mode
  USB: ehci-atmel: add usb_clk for transition to CCF
  usb: cdc-wdm: ignore speed change notifications
  USB: cdc-wdm: support back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications
  usbatm: Fix dynamic_debug / ratelimited atm_dbg and atm_rldbg macros
  printk: pr_debug_ratelimited: check state first to reduce "callbacks suppressed" messages
  usb: usbtest: support bos descriptor test for usb 3.0
  USB: phy: samsung: Support multiple PHYs of same type
  usb: wusbcore: change WA_SEGS_MAX to a legal value
  usb: wusbcore: add a quirk for Alereon HWA device isoc behavior
  usb: wusbcore: combine multiple isoc frames in a single transfer request.
  usb: wusbcore: set the RPIPE wMaxPacketSize value correctly
  usb: chipidea: host: more enhancement when ci->hcd is NULL
  usb: ohci: remove ep93xx bus glue platform driver
  usb: usbtest: fix checkpatch warning as sizeof code style
  UWB: clean up attribute use by using ATTRIBUTE_GROUPS()
  ...
This commit is contained in:
Linus Torvalds 2013-11-07 09:19:48 +09:00
commit c287322c3a
217 changed files with 9032 additions and 4950 deletions
Download patch file Download diff file Expand all files Collapse all files

14
drivers/usb/atm/usbatm.h
View file

@ -34,6 +34,7 @@
#include <linux/stringify.h>
#include <linux/usb.h>
#include <linux/mutex.h>
#include <linux/ratelimit.h>
/*
#define VERBOSE_DEBUG
@ -59,13 +60,12 @@
atm_printk(KERN_INFO, instance , format , ## arg)
#define atm_warn(instance, format, arg...) \
atm_printk(KERN_WARNING, instance , format , ## arg)
#define atm_dbg(instance, format, arg...) \
dynamic_pr_debug("ATM dev %d: " format , \
(instance)->atm_dev->number , ## arg)
#define atm_rldbg(instance, format, arg...) \
if (printk_ratelimit()) \
atm_dbg(instance , format , ## arg)
#define atm_dbg(instance, format, ...) \
pr_debug("ATM dev %d: " format, \
(instance)->atm_dev->number, ##__VA_ARGS__)
#define atm_rldbg(instance, format, ...) \
pr_debug_ratelimited("ATM dev %d: " format, \
(instance)->atm_dev->number, ##__VA_ARGS__)
/* flags, set by mini-driver in bind() */

1
drivers/usb/chipidea/bits.h
View file

@ -48,6 +48,7 @@
#define PORTSC_SUSP BIT(7)
#define PORTSC_HSP BIT(9)
#define PORTSC_PTC (0x0FUL << 16)
#define PORTSC_PHCD(d) ((d) ? BIT(22) : BIT(23))
/* PTS and PTW for non lpm version only */
#define PORTSC_PTS(d) \
(u32)((((d) & 0x3) << 30) | (((d) & 0x4) ? BIT(25) : 0))

21
drivers/usb/chipidea/ci_hdrc_imx.c
View file

@ -108,14 +108,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
}
data->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0);
if (!IS_ERR(data->phy)) {
ret = usb_phy_init(data->phy);
if (ret) {
dev_err(&pdev->dev, "unable to init phy: %d\n", ret);
goto err_clk;
}
} else if (PTR_ERR(data->phy) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
if (IS_ERR(data->phy)) {
ret = PTR_ERR(data->phy);
goto err_clk;
}
@ -131,7 +125,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev, "usbmisc init failed, ret=%d\n",
ret);
goto err_phy;
goto err_clk;
}
}
@ -143,7 +137,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
dev_err(&pdev->dev,
"Can't register ci_hdrc platform device, err=%d\n",
ret);
goto err_phy;
goto err_clk;
}
if (data->usbmisc_data) {
@ -164,9 +158,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
disable_device:
ci_hdrc_remove_device(data->ci_pdev);
err_phy:
if (data->phy)
usb_phy_shutdown(data->phy);
err_clk:
clk_disable_unprepare(data->clk);
return ret;
@ -178,10 +169,6 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
ci_hdrc_remove_device(data->ci_pdev);
if (data->phy)
usb_phy_shutdown(data->phy);
clk_disable_unprepare(data->clk);
return 0;

123
drivers/usb/chipidea/core.c
View file

@ -172,6 +172,27 @@ u8 hw_port_test_get(struct ci_hdrc *ci)
return hw_read(ci, OP_PORTSC, PORTSC_PTC) >> __ffs(PORTSC_PTC);
}
/* The PHY enters/leaves low power mode */
static void ci_hdrc_enter_lpm(struct ci_hdrc *ci, bool enable)
{
enum ci_hw_regs reg = ci->hw_bank.lpm ? OP_DEVLC : OP_PORTSC;
bool lpm = !!(hw_read(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm)));
if (enable && !lpm) {
hw_write(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm),
PORTSC_PHCD(ci->hw_bank.lpm));
} else if (!enable && lpm) {
hw_write(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm),
0);
/*
* The controller needs at least 1ms to reflect
* PHY's status, the PHY also needs some time (less
* than 1ms) to leave low power mode.
*/
usleep_range(1500, 2000);
}
}
static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
{
u32 reg;
@ -199,6 +220,8 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
if (ci->hw_ep_max > ENDPT_MAX)
return -ENODEV;
ci_hdrc_enter_lpm(ci, false);
/* Disable all interrupts bits */
hw_write(ci, OP_USBINTR, 0xffffffff, 0);
@ -369,16 +392,28 @@ static irqreturn_t ci_irq(int irq, void *data)
static int ci_get_platdata(struct device *dev,
struct ci_hdrc_platform_data *platdata)
{
/* Get the vbus regulator */
platdata->reg_vbus = devm_regulator_get(dev, "vbus");
if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) {
return -EPROBE_DEFER;
} else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) {
platdata->reg_vbus = NULL; /* no vbus regualator is needed */
} else if (IS_ERR(platdata->reg_vbus)) {
dev_err(dev, "Getting regulator error: %ld\n",
PTR_ERR(platdata->reg_vbus));
return PTR_ERR(platdata->reg_vbus);
if (!platdata->phy_mode)
platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
if (!platdata->dr_mode)
platdata->dr_mode = of_usb_get_dr_mode(dev->of_node);
if (platdata->dr_mode == USB_DR_MODE_UNKNOWN)
platdata->dr_mode = USB_DR_MODE_OTG;
if (platdata->dr_mode != USB_DR_MODE_PERIPHERAL) {
/* Get the vbus regulator */
platdata->reg_vbus = devm_regulator_get(dev, "vbus");
if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) {
return -EPROBE_DEFER;
} else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) {
/* no vbus regualator is needed */
platdata->reg_vbus = NULL;
} else if (IS_ERR(platdata->reg_vbus)) {
dev_err(dev, "Getting regulator error: %ld\n",
PTR_ERR(platdata->reg_vbus));
return PTR_ERR(platdata->reg_vbus);
}
}
return 0;
@ -465,6 +500,33 @@ static void ci_get_otg_capable(struct ci_hdrc *ci)
}
}
static int ci_usb_phy_init(struct ci_hdrc *ci)
{
if (ci->platdata->phy) {
ci->transceiver = ci->platdata->phy;
return usb_phy_init(ci->transceiver);
} else {
ci->global_phy = true;
ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
if (IS_ERR(ci->transceiver))
ci->transceiver = NULL;
return 0;
}
}
static void ci_usb_phy_destroy(struct ci_hdrc *ci)
{
if (!ci->transceiver)
return;
otg_set_peripheral(ci->transceiver->otg, NULL);
if (ci->global_phy)
usb_put_phy(ci->transceiver);
else
usb_phy_shutdown(ci->transceiver);
}
static int ci_hdrc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@ -473,7 +535,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
void __iomem *base;
int ret;
enum usb_dr_mode dr_mode;
struct device_node *of_node = dev->of_node ?: dev->parent->of_node;
if (!dev->platform_data) {
dev_err(dev, "platform data missing\n");
@ -493,10 +554,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
ci->dev = dev;
ci->platdata = dev->platform_data;
if (ci->platdata->phy)
ci->transceiver = ci->platdata->phy;
else
ci->global_phy = true;
ret = hw_device_init(ci, base);
if (ret < 0) {
@ -504,27 +561,25 @@ static int ci_hdrc_probe(struct platform_device *pdev)
return -ENODEV;
}
ret = ci_usb_phy_init(ci);
if (ret) {
dev_err(dev, "unable to init phy: %d\n", ret);
return ret;
}
ci->hw_bank.phys = res->start;
ci->irq = platform_get_irq(pdev, 0);
if (ci->irq < 0) {
dev_err(dev, "missing IRQ\n");
return -ENODEV;
ret = -ENODEV;
goto destroy_phy;
}
ci_get_otg_capable(ci);
if (!ci->platdata->phy_mode)
ci->platdata->phy_mode = of_usb_get_phy_mode(of_node);
hw_phymode_configure(ci);
if (!ci->platdata->dr_mode)
ci->platdata->dr_mode = of_usb_get_dr_mode(of_node);
if (ci->platdata->dr_mode == USB_DR_MODE_UNKNOWN)
ci->platdata->dr_mode = USB_DR_MODE_OTG;
dr_mode = ci->platdata->dr_mode;
/* initialize role(s) before the interrupt is requested */
if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) {
@ -537,11 +592,23 @@ static int ci_hdrc_probe(struct platform_device *pdev)
ret = ci_hdrc_gadget_init(ci);
if (ret)
dev_info(dev, "doesn't support gadget\n");
if (!ret && ci->transceiver) {
ret = otg_set_peripheral(ci->transceiver->otg,
&ci->gadget);
/*
* If we implement all USB functions using chipidea drivers,
* it doesn't need to call above API, meanwhile, if we only
* use gadget function, calling above API is useless.
*/
if (ret && ret != -ENOTSUPP)
goto destroy_phy;
}
}
if (!ci->roles[CI_ROLE_HOST] && !ci->roles[CI_ROLE_GADGET]) {
dev_err(dev, "no supported roles\n");
return -ENODEV;
ret = -ENODEV;
goto destroy_phy;
}
if (ci->is_otg) {
@ -594,6 +661,8 @@ static int ci_hdrc_probe(struct platform_device *pdev)
free_irq(ci->irq, ci);
stop:
ci_role_destroy(ci);
destroy_phy:
ci_usb_phy_destroy(ci);
return ret;
}
@ -605,6 +674,8 @@ static int ci_hdrc_remove(struct platform_device *pdev)
dbg_remove_files(ci);
free_irq(ci->irq, ci);
ci_role_destroy(ci);
ci_hdrc_enter_lpm(ci, true);
ci_usb_phy_destroy(ci);
kfree(ci->hw_bank.regmap);
return 0;

6
drivers/usb/chipidea/host.c
View file

@ -103,15 +103,15 @@ static void host_stop(struct ci_hdrc *ci)
if (hcd) {
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
if (ci->platdata->reg_vbus)
regulator_disable(ci->platdata->reg_vbus);
}
if (ci->platdata->reg_vbus)
regulator_disable(ci->platdata->reg_vbus);
}
void ci_hdrc_host_destroy(struct ci_hdrc *ci)
{
if (ci->role == CI_ROLE_HOST)
if (ci->role == CI_ROLE_HOST && ci->hcd)
host_stop(ci);
}

56
drivers/usb/chipidea/udc.c
View file

@ -20,7 +20,6 @@
#include <linux/pm_runtime.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
#include <linux/usb/chipidea.h>
#include "ci.h"
@ -686,9 +685,6 @@ static int _gadget_stop_activity(struct usb_gadget *gadget)
usb_ep_fifo_flush(&ci->ep0out->ep);
usb_ep_fifo_flush(&ci->ep0in->ep);
if (ci->driver)
ci->driver->disconnect(gadget);
/* make sure to disable all endpoints */
gadget_for_each_ep(ep, gadget) {
usb_ep_disable(ep);
@ -718,6 +714,11 @@ __acquires(ci->lock)
int retval;
spin_unlock(&ci->lock);
if (ci->gadget.speed != USB_SPEED_UNKNOWN) {
if (ci->driver)
ci->driver->disconnect(&ci->gadget);
}
retval = _gadget_stop_activity(&ci->gadget);
if (retval)
goto done;
@ -1461,6 +1462,8 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
hw_device_state(ci, ci->ep0out->qh.dma);
dev_dbg(ci->dev, "Connected to host\n");
} else {
if (ci->driver)
ci->driver->disconnect(&ci->gadget);
hw_device_state(ci, 0);
if (ci->platdata->notify_event)
ci->platdata->notify_event(ci,
@ -1633,23 +1636,22 @@ static int ci_udc_start(struct usb_gadget *gadget,
retval = usb_ep_enable(&ci->ep0in->ep);
if (retval)
return retval;
spin_lock_irqsave(&ci->lock, flags);
ci->driver = driver;
pm_runtime_get_sync(&ci->gadget.dev);
if (ci->vbus_active) {
spin_lock_irqsave(&ci->lock, flags);
hw_device_reset(ci, USBMODE_CM_DC);
} else {
pm_runtime_put_sync(&ci->gadget.dev);
goto done;
return retval;
}
retval = hw_device_state(ci, ci->ep0out->qh.dma);
spin_unlock_irqrestore(&ci->lock, flags);
if (retval)
pm_runtime_put_sync(&ci->gadget.dev);
done:
spin_unlock_irqrestore(&ci->lock, flags);
return retval;
}
@ -1786,34 +1788,9 @@ static int udc_start(struct ci_hdrc *ci)
ci->gadget.ep0 = &ci->ep0in->ep;
if (ci->global_phy) {
ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
if (IS_ERR(ci->transceiver))
ci->transceiver = NULL;
}
if (ci->platdata->flags & CI_HDRC_REQUIRE_TRANSCEIVER) {
if (ci->transceiver == NULL) {
retval = -ENODEV;
goto destroy_eps;
}
}
if (ci->transceiver) {
retval = otg_set_peripheral(ci->transceiver->otg,
&ci->gadget);
/*
* If we implement all USB functions using chipidea drivers,
* it doesn't need to call above API, meanwhile, if we only
* use gadget function, calling above API is useless.
*/
if (retval && retval != -ENOTSUPP)
goto put_transceiver;
}
retval = usb_add_gadget_udc(dev, &ci->gadget);
if (retval)
goto remove_trans;
goto destroy_eps;
pm_runtime_no_callbacks(&ci->gadget.dev);
pm_runtime_enable(&ci->gadget.dev);
@ -1823,17 +1800,6 @@ static int udc_start(struct ci_hdrc *ci)
return retval;
remove_trans:
if (ci->transceiver) {
otg_set_peripheral(ci->transceiver->otg, NULL);
if (ci->global_phy)
usb_put_phy(ci->transceiver);
}
dev_err(dev, "error = %i\n", retval);
put_transceiver:
if (ci->transceiver && ci->global_phy)
usb_put_phy(ci->transceiver);
destroy_eps:
destroy_eps(ci);
free_pools:

42
drivers/usb/class/cdc-wdm.c
View file

@ -101,6 +101,7 @@ struct wdm_device {
struct work_struct rxwork;
int werr;
int rerr;
int resp_count;
struct list_head device_list;
int (*manage_power)(struct usb_interface *, int);
@ -253,6 +254,10 @@ static void wdm_int_callback(struct urb *urb)
"NOTIFY_NETWORK_CONNECTION %s network",
dr->wValue ? "connected to" : "disconnected from");
goto exit;
case USB_CDC_NOTIFY_SPEED_CHANGE:
dev_dbg(&desc->intf->dev, "SPEED_CHANGE received (len %u)",
urb->actual_length);
goto exit;
default:
clear_bit(WDM_POLL_RUNNING, &desc->flags);
dev_err(&desc->intf->dev,
@ -262,9 +267,9 @@ static void wdm_int_callback(struct urb *urb)
}
spin_lock(&desc->iuspin);
clear_bit(WDM_READ, &desc->flags);
responding = test_and_set_bit(WDM_RESPONDING, &desc->flags);
if (!responding && !test_bit(WDM_DISCONNECTING, &desc->flags)
if (!desc->resp_count++ && !responding
&& !test_bit(WDM_DISCONNECTING, &desc->flags)
&& !test_bit(WDM_SUSPENDING, &desc->flags)) {
rv = usb_submit_urb(desc->response, GFP_ATOMIC);
dev_dbg(&desc->intf->dev, "%s: usb_submit_urb %d",
@ -521,10 +526,36 @@ retry:
desc->length -= cntr;
/* in case we had outstanding data */
if (!desc->length)
if (!desc->length) {
clear_bit(WDM_READ, &desc->flags);
spin_unlock_irq(&desc->iuspin);
if (--desc->resp_count) {
set_bit(WDM_RESPONDING, &desc->flags);
spin_unlock_irq(&desc->iuspin);
rv = usb_submit_urb(desc->response, GFP_KERNEL);
if (rv) {
dev_err(&desc->intf->dev,
"%s: usb_submit_urb failed with result %d\n",
__func__, rv);
spin_lock_irq(&desc->iuspin);
clear_bit(WDM_RESPONDING, &desc->flags);
spin_unlock_irq(&desc->iuspin);
if (rv == -ENOMEM) {
rv = schedule_work(&desc->rxwork);
if (rv)
dev_err(&desc->intf->dev, "Cannot schedule work\n");
} else {
spin_lock_irq(&desc->iuspin);
desc->resp_count = 0;
spin_unlock_irq(&desc->iuspin);
}
}
} else
spin_unlock_irq(&desc->iuspin);
} else
spin_unlock_irq(&desc->iuspin);
rv = cntr;
@ -635,6 +666,9 @@ static int wdm_release(struct inode *inode, struct file *file)
if (!test_bit(WDM_DISCONNECTING, &desc->flags)) {
dev_dbg(&desc->intf->dev, "wdm_release: cleanup");
kill_urbs(desc);
spin_lock_irq(&desc->iuspin);
desc->resp_count = 0;
spin_unlock_irq(&desc->iuspin);
desc->manage_power(desc->intf, 0);
} else {
/* must avoid dev_printk here as desc->intf is invalid */

38
drivers/usb/core/devio.c
View file

@ -914,10 +914,8 @@ static int proc_control(struct dev_state *ps, void __user *arg)
snoop(&dev->dev, "control urb: bRequestType=%02x "
"bRequest=%02x wValue=%04x "
"wIndex=%04x wLength=%04x\n",
ctrl.bRequestType, ctrl.bRequest,
__le16_to_cpup(&ctrl.wValue),
__le16_to_cpup(&ctrl.wIndex),
__le16_to_cpup(&ctrl.wLength));
ctrl.bRequestType, ctrl.bRequest, ctrl.wValue,
ctrl.wIndex, ctrl.wLength);
if (ctrl.bRequestType & 0x80) {
if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data,
ctrl.wLength)) {
@ -1636,32 +1634,32 @@ static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg)
static int proc_control_compat(struct dev_state *ps,
struct usbdevfs_ctrltransfer32 __user *p32)
{
struct usbdevfs_ctrltransfer __user *p;
__u32 udata;
p = compat_alloc_user_space(sizeof(*p));
if (copy_in_user(p, p32, (sizeof(*p32) - sizeof(compat_caddr_t))) ||
get_user(udata, &p32->data) ||
struct usbdevfs_ctrltransfer __user *p;
__u32 udata;
p = compat_alloc_user_space(sizeof(*p));
if (copy_in_user(p, p32, (sizeof(*p32) - sizeof(compat_caddr_t))) ||
get_user(udata, &p32->data) ||
put_user(compat_ptr(udata), &p->data))
return -EFAULT;
return proc_control(ps, p);
return proc_control(ps, p);
}
static int proc_bulk_compat(struct dev_state *ps,
struct usbdevfs_bulktransfer32 __user *p32)
{
struct usbdevfs_bulktransfer __user *p;
compat_uint_t n;
compat_caddr_t addr;
struct usbdevfs_bulktransfer __user *p;
compat_uint_t n;
compat_caddr_t addr;
p = compat_alloc_user_space(sizeof(*p));
p = compat_alloc_user_space(sizeof(*p));
if (get_user(n, &p32->ep) || put_user(n, &p->ep) ||
get_user(n, &p32->len) || put_user(n, &p->len) ||
get_user(n, &p32->timeout) || put_user(n, &p->timeout) ||
get_user(addr, &p32->data) || put_user(compat_ptr(addr), &p->data))
return -EFAULT;
if (get_user(n, &p32->ep) || put_user(n, &p->ep) ||
get_user(n, &p32->len) || put_user(n, &p->len) ||
get_user(n, &p32->timeout) || put_user(n, &p->timeout) ||
get_user(addr, &p32->data) || put_user(compat_ptr(addr), &p->data))
return -EFAULT;
return proc_bulk(ps, p);
return proc_bulk(ps, p);
}
static int proc_disconnectsignal_compat(struct dev_state *ps, void __user *arg)
{

7
drivers/usb/core/driver.c
View file

@ -1179,8 +1179,8 @@ static int usb_resume_interface(struct usb_device *udev,
"reset_resume", status);
} else {
intf->needs_binding = 1;
dev_warn(&intf->dev, "no %s for driver %s?\n",
"reset_resume", driver->name);
dev_dbg(&intf->dev, "no reset_resume for driver %s?\n",
driver->name);
}
} else {
status = driver->resume(intf);
@ -1790,6 +1790,9 @@ int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
struct usb_hcd *hcd = bus_to_hcd(udev->bus);
int ret = -EPERM;
if (enable && !udev->usb2_hw_lpm_allowed)
return 0;
if (hcd->driver->set_usb2_hw_lpm) {
ret = hcd->driver->set_usb2_hw_lpm(hcd, udev, enable);
if (!ret)

8
drivers/usb/core/file.c
View file

@ -8,7 +8,7 @@
* (C) Copyright Deti Fliegl 1999 (new USB architecture)
* (C) Copyright Randy Dunlap 2000
* (C) Copyright David Brownell 2000-2001 (kernel hotplug, usb_device_id,
more docs, etc)
* more docs, etc)
* (C) Copyright Yggdrasil Computing, Inc. 2000
* (usb_device_id matching changes by Adam J. Richter)
* (C) Copyright Greg Kroah-Hartman 2002-2003
@ -27,7 +27,7 @@
static const struct file_operations *usb_minors[MAX_USB_MINORS];
static DECLARE_RWSEM(minor_rwsem);
static int usb_open(struct inode * inode, struct file * file)
static int usb_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
const struct file_operations *c;
@ -44,7 +44,7 @@ static int usb_open(struct inode * inode, struct file * file)
file->f_op = new_fops;
/* Curiouser and curiouser... NULL ->open() as "no device" ? */
if (file->f_op->open)
err = file->f_op->open(inode,file);
err = file->f_op->open(inode, file);
if (err) {
fops_put(file->f_op);
file->f_op = fops_get(old_fops);
@ -166,7 +166,7 @@ int usb_register_dev(struct usb_interface *intf,
char *temp;
#ifdef CONFIG_USB_DYNAMIC_MINORS
/*
/*
* We don't care what the device tries to start at, we want to start
* at zero to pack the devices into the smallest available space with
* no holes in the minor range.

3
drivers/usb/core/hcd-pci.c
View file

@ -215,6 +215,9 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
goto disable_pci;
}
hcd->amd_resume_bug = (usb_hcd_amd_remote_wakeup_quirk(dev) &&
driver->flags & (HCD_USB11 | HCD_USB3)) ? 1 : 0;
if (driver->flags & HCD_MEMORY) {
/* EHCI, OHCI */
hcd->rsrc_start = pci_resource_start(dev, 0);

122
drivers/usb/core/hcd.c
View file

@ -6,7 +6,7 @@
* (C) Copyright Deti Fliegl 1999
* (C) Copyright Randy Dunlap 2000
* (C) Copyright David Brownell 2000-2002
*
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
@ -40,6 +40,7 @@
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/pm_runtime.h>
#include <linux/types.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
@ -92,10 +93,7 @@ EXPORT_SYMBOL_GPL (usb_bus_list);
/* used when allocating bus numbers */
#define USB_MAXBUS 64
struct usb_busmap {
unsigned long busmap [USB_MAXBUS / (8*sizeof (unsigned long))];
};
static struct usb_busmap busmap;
static DECLARE_BITMAP(busmap, USB_MAXBUS);
/* used when updating list of hcds */
DEFINE_MUTEX(usb_bus_list_lock); /* exported only for usbfs */
@ -171,7 +169,7 @@ static const u8 usb25_rh_dev_descriptor[18] = {
};
/* usb 2.0 root hub device descriptor */
static const u8 usb2_rh_dev_descriptor [18] = {
static const u8 usb2_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
0x01, /* __u8 bDescriptorType; Device */
0x00, 0x02, /* __le16 bcdUSB; v2.0 */
@ -194,7 +192,7 @@ static const u8 usb2_rh_dev_descriptor [18] = {
/* no usb 2.0 root hub "device qualifier" descriptor: one speed only */
/* usb 1.1 root hub device descriptor */
static const u8 usb11_rh_dev_descriptor [18] = {
static const u8 usb11_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
0x01, /* __u8 bDescriptorType; Device */
0x10, 0x01, /* __le16 bcdUSB; v1.1 */
@ -219,7 +217,7 @@ static const u8 usb11_rh_dev_descriptor [18] = {
/* Configuration descriptors for our root hubs */
static const u8 fs_rh_config_descriptor [] = {
static const u8 fs_rh_config_descriptor[] = {
/* one configuration */
0x09, /* __u8 bLength; */
@ -228,13 +226,13 @@ static const u8 fs_rh_config_descriptor [] = {
0x01, /* __u8 bNumInterfaces; (1) */
0x01, /* __u8 bConfigurationValue; */
0x00, /* __u8 iConfiguration; */
0xc0, /* __u8 bmAttributes;
0xc0, /* __u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
0x00, /* __u8 MaxPower; */
/* USB 1.1:
* USB 2.0, single TT organization (mandatory):
* one interface, protocol 0
@ -256,17 +254,17 @@ static const u8 fs_rh_config_descriptor [] = {
0x00, /* __u8 if_bInterfaceSubClass; */
0x00, /* __u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
0x00, /* __u8 if_iInterface; */
/* one endpoint (status change endpoint) */
0x07, /* __u8 ep_bLength; */
0x05, /* __u8 ep_bDescriptorType; Endpoint */
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* __u8 ep_bmAttributes; Interrupt */
0x02, 0x00, /* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */
0x03, /* __u8 ep_bmAttributes; Interrupt */
0x02, 0x00, /* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */
0xff /* __u8 ep_bInterval; (255ms -- usb 2.0 spec) */
};
static const u8 hs_rh_config_descriptor [] = {
static const u8 hs_rh_config_descriptor[] = {
/* one configuration */
0x09, /* __u8 bLength; */
@ -275,13 +273,13 @@ static const u8 hs_rh_config_descriptor [] = {
0x01, /* __u8 bNumInterfaces; (1) */
0x01, /* __u8 bConfigurationValue; */
0x00, /* __u8 iConfiguration; */
0xc0, /* __u8 bmAttributes;
0xc0, /* __u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
0x00, /* __u8 MaxPower; */
/* USB 1.1:
* USB 2.0, single TT organization (mandatory):
* one interface, protocol 0
@ -303,12 +301,12 @@ static const u8 hs_rh_config_descriptor [] = {
0x00, /* __u8 if_bInterfaceSubClass; */
0x00, /* __u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
0x00, /* __u8 if_iInterface; */
/* one endpoint (status change endpoint) */
0x07, /* __u8 ep_bLength; */
0x05, /* __u8 ep_bDescriptorType; Endpoint */
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* __u8 ep_bmAttributes; Interrupt */
0x03, /* __u8 ep_bmAttributes; Interrupt */
/* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8)
* see hub.c:hub_configure() for details. */
(USB_MAXCHILDREN + 1 + 7) / 8, 0x00,
@ -428,7 +426,7 @@ rh_string(int id, struct usb_hcd const *hcd, u8 *data, unsigned len)
char const *s;
static char const langids[4] = {4, USB_DT_STRING, 0x09, 0x04};
// language ids
/* language ids */
switch (id) {
case 0:
/* Array of LANGID codes (0x0409 is MSFT-speak for "en-us") */
@ -464,7 +462,7 @@ rh_string(int id, struct usb_hcd const *hcd, u8 *data, unsigned len)
static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
{
struct usb_ctrlrequest *cmd;
u16 typeReq, wValue, wIndex, wLength;
u16 typeReq, wValue, wIndex, wLength;
u8 *ubuf = urb->transfer_buffer;
unsigned len = 0;
int status;
@ -526,10 +524,10 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
*/
case DeviceRequest | USB_REQ_GET_STATUS:
tbuf [0] = (device_may_wakeup(&hcd->self.root_hub->dev)
tbuf[0] = (device_may_wakeup(&hcd->self.root_hub->dev)
<< USB_DEVICE_REMOTE_WAKEUP)
| (1 << USB_DEVICE_SELF_POWERED);
tbuf [1] = 0;
tbuf[1] = 0;
len = 2;
break;
case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
@ -546,7 +544,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
goto error;
break;
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
tbuf [0] = 1;
tbuf[0] = 1;
len = 1;
/* FALLTHROUGH */
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
@ -609,13 +607,13 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
}
break;
case DeviceRequest | USB_REQ_GET_INTERFACE:
tbuf [0] = 0;
tbuf[0] = 0;
len = 1;
/* FALLTHROUGH */
case DeviceOutRequest | USB_REQ_SET_INTERFACE:
break;
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
// wValue == urb->dev->devaddr
/* wValue == urb->dev->devaddr */
dev_dbg (hcd->self.controller, "root hub device address %d\n",
wValue);
break;
@ -625,9 +623,9 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
/* ENDPOINT REQUESTS */
case EndpointRequest | USB_REQ_GET_STATUS:
// ENDPOINT_HALT flag
tbuf [0] = 0;
tbuf [1] = 0;
/* ENDPOINT_HALT flag */
tbuf[0] = 0;
tbuf[1] = 0;
len = 2;
/* FALLTHROUGH */
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
@ -683,7 +681,7 @@ error:
if (urb->transfer_buffer_length < len)
len = urb->transfer_buffer_length;
urb->actual_length = len;
// always USB_DIR_IN, toward host
/* always USB_DIR_IN, toward host */
memcpy (ubuf, bufp, len);
/* report whether RH hardware supports remote wakeup */
@ -877,11 +875,11 @@ static ssize_t authorized_default_store(struct device *dev,
usb_hcd = bus_to_hcd(usb_bus);
result = sscanf(buf, "%u\n", &val);
if (result == 1) {
usb_hcd->authorized_default = val? 1 : 0;
usb_hcd->authorized_default = val ? 1 : 0;
result = size;
}
else
} else {
result = -EINVAL;
}
return result;
}
static DEVICE_ATTR_RW(authorized_default);
@ -941,12 +939,12 @@ static int usb_register_bus(struct usb_bus *bus)
int busnum;
mutex_lock(&usb_bus_list_lock);
busnum = find_next_zero_bit (busmap.busmap, USB_MAXBUS, 1);
busnum = find_next_zero_bit(busmap, USB_MAXBUS, 1);
if (busnum >= USB_MAXBUS) {
printk (KERN_ERR "%s: too many buses\n", usbcore_name);
goto error_find_busnum;
}
set_bit (busnum, busmap.busmap);
set_bit(busnum, busmap);
bus->busnum = busnum;
/* Add it to the local list of buses */
@ -987,7 +985,7 @@ static void usb_deregister_bus (struct usb_bus *bus)
usb_notify_remove_bus(bus);
clear_bit (bus->busnum, busmap.busmap);
clear_bit(bus->busnum, busmap);
}
/**
@ -1033,6 +1031,7 @@ static int register_root_hub(struct usb_hcd *hcd)
dev_name(&usb_dev->dev), retval);
return retval;
}
usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev);
}
retval = usb_new_device (usb_dev);
@ -1120,21 +1119,21 @@ long usb_calc_bus_time (int speed, int is_input, int isoc, int bytecount)
case USB_SPEED_LOW: /* INTR only */
if (is_input) {
tmp = (67667L * (31L + 10L * BitTime (bytecount))) / 1000L;
return (64060L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp);
return 64060L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp;
} else {
tmp = (66700L * (31L + 10L * BitTime (bytecount))) / 1000L;
return (64107L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp);
return 64107L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp;
}
case USB_SPEED_FULL: /* ISOC or INTR */
if (isoc) {
tmp = (8354L * (31L + 10L * BitTime (bytecount))) / 1000L;
return (((is_input) ? 7268L : 6265L) + BW_HOST_DELAY + tmp);
return ((is_input) ? 7268L : 6265L) + BW_HOST_DELAY + tmp;
} else {
tmp = (8354L * (31L + 10L * BitTime (bytecount))) / 1000L;
return (9107L + BW_HOST_DELAY + tmp);
return 9107L + BW_HOST_DELAY + tmp;
}
case USB_SPEED_HIGH: /* ISOC or INTR */
// FIXME adjust for input vs output
/* FIXME adjust for input vs output */
if (isoc)
tmp = HS_NSECS_ISO (bytecount);
else
@ -1651,6 +1650,7 @@ int usb_hcd_unlink_urb (struct urb *urb, int status)
static void __usb_hcd_giveback_urb(struct urb *urb)
{
struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus);
struct usb_anchor *anchor = urb->anchor;
int status = urb->unlinked;
unsigned long flags;
@ -1662,6 +1662,7 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
unmap_urb_for_dma(hcd, urb);
usbmon_urb_complete(&hcd->self, urb, status);
usb_anchor_suspend_wakeups(anchor);
usb_unanchor_urb(urb);
/* pass ownership to the completion handler */
@ -1681,6 +1682,7 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
urb->complete(urb);
local_irq_restore(flags);
usb_anchor_resume_wakeups(anchor);
atomic_dec(&urb->use_count);
if (unlikely(atomic_read(&urb->reject)))
wake_up(&usb_kill_urb_queue);
@ -1703,7 +1705,9 @@ static void usb_giveback_urb_bh(unsigned long param)
urb = list_entry(local_list.next, struct urb, urb_list);
list_del_init(&urb->urb_list);
bh->completing_ep = urb->ep;
__usb_hcd_giveback_urb(urb);
bh->completing_ep = NULL;
}
/* check if there are new URBs to giveback */
@ -1812,7 +1816,7 @@ rescan:
case USB_ENDPOINT_XFER_INT:
s = "-intr"; break;
default:
s = "-iso"; break;
s = "-iso"; break;
};
s;
}));
@ -2073,8 +2077,11 @@ EXPORT_SYMBOL_GPL(usb_alloc_streams);
*
* Reverts a group of bulk endpoints back to not using stream IDs.
* Can fail if we are given bad arguments, or HCD is broken.
*
* Return: On success, the number of allocated streams. On failure, a negative
* error code.
*/
void usb_free_streams(struct usb_interface *interface,
int usb_free_streams(struct usb_interface *interface,
struct usb_host_endpoint **eps, unsigned int num_eps,
gfp_t mem_flags)
{
@ -2085,14 +2092,14 @@ void usb_free_streams(struct usb_interface *interface,
dev = interface_to_usbdev(interface);
hcd = bus_to_hcd(dev->bus);
if (dev->speed != USB_SPEED_SUPER)
return;
return -EINVAL;
/* Streams only apply to bulk endpoints. */
for (i = 0; i < num_eps; i++)
if (!eps[i] || !usb_endpoint_xfer_bulk(&eps[i]->desc))
return;
return -EINVAL;
hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags);
return hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags);
}
EXPORT_SYMBOL_GPL(usb_free_streams);
@ -2245,7 +2252,7 @@ static void hcd_resume_work(struct work_struct *work)
}
/**
* usb_hcd_resume_root_hub - called by HCD to resume its root hub
* usb_hcd_resume_root_hub - called by HCD to resume its root hub
* @hcd: host controller for this root hub
*
* The USB host controller calls this function when its root hub is
@ -2324,15 +2331,8 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum);
irqreturn_t usb_hcd_irq (int irq, void *__hcd)
{
struct usb_hcd *hcd = __hcd;
unsigned long flags;
irqreturn_t rc;
/* IRQF_DISABLED doesn't work correctly with shared IRQs
* when the first handler doesn't use it. So let's just
* assume it's never used.
*/
local_irq_save(flags);
if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd)))
rc = IRQ_NONE;
else if (hcd->driver->irq(hcd) == IRQ_NONE)
@ -2340,7 +2340,6 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd)
else
rc = IRQ_HANDLED;
local_irq_restore(flags);
return rc;
}
EXPORT_SYMBOL_GPL(usb_hcd_irq);
@ -2547,13 +2546,6 @@ static int usb_hcd_request_irqs(struct usb_hcd *hcd,
if (hcd->driver->irq) {
/* IRQF_DISABLED doesn't work as advertised when used together
* with IRQF_SHARED. As usb_hcd_irq() will always disable
* interrupts we can remove it here.
*/
if (irqflags & IRQF_SHARED)
irqflags &= ~IRQF_DISABLED;
snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d",
hcd->driver->description, hcd->self.busnum);
retval = request_irq(irqnum, &usb_hcd_irq, irqflags,
@ -2600,7 +2592,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
/* Keep old behaviour if authorized_default is not in [0, 1]. */
if (authorized_default < 0 || authorized_default > 1)
hcd->authorized_default = hcd->wireless? 0 : 1;
hcd->authorized_default = hcd->wireless ? 0 : 1;
else
hcd->authorized_default = authorized_default;
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
@ -2743,7 +2735,7 @@ err_allocate_root_hub:
err_register_bus:
hcd_buffer_destroy(hcd);
return retval;
}
}
EXPORT_SYMBOL_GPL(usb_add_hcd);
/**
@ -2818,7 +2810,7 @@ void usb_remove_hcd(struct usb_hcd *hcd)
EXPORT_SYMBOL_GPL(usb_remove_hcd);
void
usb_hcd_platform_shutdown(struct platform_device* dev)
usb_hcd_platform_shutdown(struct platform_device *dev)
{
struct usb_hcd *hcd = platform_get_drvdata(dev);
@ -2840,7 +2832,7 @@ struct usb_mon_operations *mon_ops;
* Notice that the code is minimally error-proof. Because usbmon needs
* symbols from usbcore, usbcore gets referenced and cannot be unloaded first.
*/
int usb_mon_register (struct usb_mon_operations *ops)
{

182
drivers/usb/core/hub.c
View file

@ -120,7 +120,7 @@ static inline char *portspeed(struct usb_hub *hub, int portstatus)
if (hub_is_superspeed(hub->hdev))
return "5.0 Gb/s";
if (portstatus & USB_PORT_STAT_HIGH_SPEED)
return "480 Mb/s";
return "480 Mb/s";
else if (portstatus & USB_PORT_STAT_LOW_SPEED)
return "1.5 Mb/s";
else
@ -135,7 +135,7 @@ struct usb_hub *usb_hub_to_struct_hub(struct usb_device *hdev)
return usb_get_intfdata(hdev->actconfig->interface[0]);
}
static int usb_device_supports_lpm(struct usb_device *udev)
int usb_device_supports_lpm(struct usb_device *udev)
{
/* USB 2.1 (and greater) devices indicate LPM support through
* their USB 2.0 Extended Capabilities BOS descriptor.
@ -156,6 +156,11 @@ static int usb_device_supports_lpm(struct usb_device *udev)
"Power management will be impacted.\n");
return 0;
}
/* udev is root hub */
if (!udev->parent)
return 1;
if (udev->parent->lpm_capable)
return 1;
@ -310,9 +315,9 @@ static void usb_set_lpm_parameters(struct usb_device *udev)
return;
udev_u1_del = udev->bos->ss_cap->bU1devExitLat;
udev_u2_del = udev->bos->ss_cap->bU2DevExitLat;
udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat);
hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat;
hub_u2_del = udev->parent->bos->ss_cap->bU2DevExitLat;
hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat);
usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del,
hub, &udev->parent->u1_params, hub_u1_del);
@ -433,7 +438,7 @@ static void set_port_led(
case HUB_LED_OFF: s = "off"; break;
case HUB_LED_AUTO: s = "auto"; break;
default: s = "??"; break;
}; s; }),
} s; }),
status);
}
@ -857,7 +862,7 @@ static int hub_hub_status(struct usb_hub *hub,
"%s failed (err = %d)\n", __func__, ret);
} else {
*status = le16_to_cpu(hub->status->hub.wHubStatus);
*change = le16_to_cpu(hub->status->hub.wHubChange);
*change = le16_to_cpu(hub->status->hub.wHubChange);
ret = 0;
}
mutex_unlock(&hub->status_mutex);
@ -956,7 +961,7 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1)
*/
set_bit(port1, hub->change_bits);
kick_khubd(hub);
kick_khubd(hub);
}
/**
@ -1107,16 +1112,13 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
/*
* USB3 protocol ports will automatically transition
* to Enabled state when detect an USB3.0 device attach.
* Do not disable USB3 protocol ports.
* Do not disable USB3 protocol ports, just pretend
* power was lost
*/
if (!hub_is_superspeed(hdev)) {
portstatus &= ~USB_PORT_STAT_ENABLE;
if (!hub_is_superspeed(hdev))
usb_clear_port_feature(hdev, port1,
USB_PORT_FEAT_ENABLE);
portstatus &= ~USB_PORT_STAT_ENABLE;
} else {
/* Pretend that power was lost for USB3 devs */
portstatus &= ~USB_PORT_STAT_ENABLE;
}
}
/* Clear status-change flags; we'll debounce later */
@ -1130,6 +1132,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
usb_clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_ENABLE);
}
if (portchange & USB_PORT_STAT_C_RESET) {
need_debounce_delay = true;
usb_clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_RESET);
}
if ((portchange & USB_PORT_STAT_C_BH_RESET) &&
hub_is_superspeed(hub->hdev)) {
need_debounce_delay = true;
@ -1361,7 +1368,7 @@ static int hub_configure(struct usb_hub *hub,
if ((wHubCharacteristics & HUB_CHAR_COMPOUND) &&
!(hub_is_superspeed(hdev))) {
int i;
char portstr [USB_MAXCHILDREN + 1];
char portstr[USB_MAXCHILDREN + 1];
for (i = 0; i < hdev->maxchild; i++)
portstr[i] = hub->descriptor->u.hs.DeviceRemovable
@ -1429,32 +1436,32 @@ static int hub_configure(struct usb_hub *hub,
/* Note 8 FS bit times == (8 bits / 12000000 bps) ~= 666ns */
switch (wHubCharacteristics & HUB_CHAR_TTTT) {
case HUB_TTTT_8_BITS:
if (hdev->descriptor.bDeviceProtocol != 0) {
hub->tt.think_time = 666;
dev_dbg(hub_dev, "TT requires at most %d "
"FS bit times (%d ns)\n",
8, hub->tt.think_time);
}
break;
case HUB_TTTT_16_BITS:
hub->tt.think_time = 666 * 2;
case HUB_TTTT_8_BITS:
if (hdev->descriptor.bDeviceProtocol != 0) {
hub->tt.think_time = 666;
dev_dbg(hub_dev, "TT requires at most %d "
"FS bit times (%d ns)\n",
16, hub->tt.think_time);
break;
case HUB_TTTT_24_BITS:
hub->tt.think_time = 666 * 3;
dev_dbg(hub_dev, "TT requires at most %d "
"FS bit times (%d ns)\n",
24, hub->tt.think_time);
break;
case HUB_TTTT_32_BITS:
hub->tt.think_time = 666 * 4;
dev_dbg(hub_dev, "TT requires at most %d "
"FS bit times (%d ns)\n",
32, hub->tt.think_time);
break;
8, hub->tt.think_time);
}
break;
case HUB_TTTT_16_BITS:
hub->tt.think_time = 666 * 2;
dev_dbg(hub_dev, "TT requires at most %d "
"FS bit times (%d ns)\n",
16, hub->tt.think_time);
break;
case HUB_TTTT_24_BITS:
hub->tt.think_time = 666 * 3;
dev_dbg(hub_dev, "TT requires at most %d "
"FS bit times (%d ns)\n",
24, hub->tt.think_time);
break;
case HUB_TTTT_32_BITS:
hub->tt.think_time = 666 * 4;
dev_dbg(hub_dev, "TT requires at most %d "
"FS bit times (%d ns)\n",
32, hub->tt.think_time);
break;
}
/* probe() zeroes hub->indicator[] */
@ -1560,7 +1567,7 @@ static int hub_configure(struct usb_hub *hub,
/* maybe cycle the hub leds */
if (hub->has_indicators && blinkenlights)
hub->indicator [0] = INDICATOR_CYCLE;
hub->indicator[0] = INDICATOR_CYCLE;
for (i = 0; i < hdev->maxchild; i++) {
ret = usb_hub_create_port_device(hub, i + 1);
@ -1978,7 +1985,7 @@ static void choose_devnum(struct usb_device *udev)
if (devnum >= 128)
devnum = find_next_zero_bit(bus->devmap.devicemap,
128, 1);
bus->devnum_next = ( devnum >= 127 ? 1 : devnum + 1);
bus->devnum_next = (devnum >= 127 ? 1 : devnum + 1);
}
if (devnum < 128) {
set_bit(devnum, bus->devmap.devicemap);
@ -2018,8 +2025,8 @@ static void hub_free_dev(struct usb_device *udev)
* Something got disconnected. Get rid of it and all of its children.
*
* If *pdev is a normal device then the parent hub must already be locked.
* If *pdev is a root hub then this routine will acquire the
* usb_bus_list_lock on behalf of the caller.
* If *pdev is a root hub then the caller must hold the usb_bus_list_lock,
* which protects the set of root hubs as well as the list of buses.
*
* Only hub drivers (including virtual root hub drivers for host
* controllers) should ever call this.
@ -2232,8 +2239,7 @@ static int usb_enumerate_device(struct usb_device *udev)
udev->product = kstrdup("n/a (unauthorized)", GFP_KERNEL);
udev->manufacturer = kstrdup("n/a (unauthorized)", GFP_KERNEL);
udev->serial = kstrdup("n/a (unauthorized)", GFP_KERNEL);
}
else {
} else {
/* read the standard strings and cache them if present */
udev->product = usb_cache_string(udev, udev->descriptor.iProduct);
udev->manufacturer = usb_cache_string(udev,
@ -2489,7 +2495,7 @@ error_device_descriptor:
usb_autosuspend_device(usb_dev);
error_autoresume:
out_authorized:
usb_unlock_device(usb_dev); // complements locktree
usb_unlock_device(usb_dev); /* complements locktree */
return result;
}
@ -3108,8 +3114,8 @@ static int finish_port_resume(struct usb_device *udev)
retry_reset_resume:
status = usb_reset_and_verify_device(udev);
/* 10.5.4.5 says be sure devices in the tree are still there.
* For now let's assume the device didn't go crazy on resume,
/* 10.5.4.5 says be sure devices in the tree are still there.
* For now let's assume the device didn't go crazy on resume,
* and device drivers will know about any resume quirks.
*/
if (status == 0) {
@ -3211,7 +3217,7 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg)
if (status == 0 && !port_is_suspended(hub, portstatus))
goto SuspendCleared;
// dev_dbg(hub->intfdev, "resume port %d\n", port1);
/* dev_dbg(hub->intfdev, "resume port %d\n", port1); */
set_bit(port1, hub->busy_bits);
@ -3855,7 +3861,7 @@ EXPORT_SYMBOL_GPL(usb_enable_ltm);
* Between connect detection and reset signaling there must be a delay
* of 100ms at least for debounce and power-settling. The corresponding
* timer shall restart whenever the downstream port detects a disconnect.
*
*
* Apparently there are some bluetooth and irda-dongles and a number of
* low-speed devices for which this debounce period may last over a second.
* Not covered by the spec - but easy to deal with.
@ -3949,6 +3955,32 @@ static int hub_set_address(struct usb_device *udev, int devnum)
return retval;
}
/*
* There are reports of USB 3.0 devices that say they support USB 2.0 Link PM
* when they're plugged into a USB 2.0 port, but they don't work when LPM is
* enabled.
*
* Only enable USB 2.0 Link PM if the port is internal (hardwired), or the
* device says it supports the new USB 2.0 Link PM errata by setting the BESL
* support bit in the BOS descriptor.
*/
static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev)
{
int connect_type;
if (!udev->usb2_hw_lpm_capable)
return;
connect_type = usb_get_hub_port_connect_type(udev->parent,
udev->portnum);
if ((udev->bos->ext_cap->bmAttributes & USB_BESL_SUPPORT) ||
connect_type == USB_PORT_CONNECT_TYPE_HARD_WIRED) {
udev->usb2_hw_lpm_allowed = 1;
usb_set_usb2_hardware_lpm(udev, 1);
}
}
/* Reset device, (re)assign address, get device descriptor.
* Device connection must be stable, no more debouncing needed.
* Returns device in USB_STATE_ADDRESS, except on error.
@ -4055,7 +4087,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
udev->tt = &hub->tt;
udev->ttport = port1;
}
/* Why interleave GET_DESCRIPTOR and SET_ADDRESS this way?
* Because device hardware and firmware is sometimes buggy in
* this area, and this is how Linux has done it for ages.
@ -4130,11 +4162,11 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
#undef GET_DESCRIPTOR_BUFSIZE
}
/*
* If device is WUSB, we already assigned an
* unauthorized address in the Connect Ack sequence;
* authorization will assign the final address.
*/
/*
* If device is WUSB, we already assigned an
* unauthorized address in the Connect Ack sequence;
* authorization will assign the final address.
*/
if (udev->wusb == 0) {
for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
retval = hub_set_address(udev, devnum);
@ -4163,7 +4195,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
msleep(10);
if (USE_NEW_SCHEME(retry_counter) && !(hcd->driver->flags & HCD_USB3))
break;
}
}
retval = usb_get_device_descriptor(udev, 8);
if (retval < 8) {
@ -4219,7 +4251,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i);
usb_ep0_reinit(udev);
}
retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE);
if (retval < (signed)sizeof(udev->descriptor)) {
if (retval != -ENODEV)
@ -4242,6 +4274,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
/* notify HCD that we have a device connected and addressed */
if (hcd->driver->update_device)
hcd->driver->update_device(hcd, udev);
hub_set_initial_usb2_lpm_policy(udev);
fail:
if (retval) {
hub_port_disable(hub, port1, 0);
@ -4316,7 +4349,7 @@ hub_power_remaining (struct usb_hub *hub)
}
if (remaining < 0) {
dev_warn(hub->intfdev, "%dmA over power budget!\n",
- remaining);
-remaining);
remaining = 0;
}
return remaining;
@ -4427,7 +4460,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
set_port_feature(hdev, port1, USB_PORT_FEAT_POWER);
if (portstatus & USB_PORT_STAT_ENABLE)
goto done;
goto done;
return;
}
if (hub_is_superspeed(hub->hdev))
@ -4450,7 +4483,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
}
usb_set_device_state(udev, USB_STATE_POWERED);
udev->bus_mA = hub->mA_per_port;
udev->bus_mA = hub->mA_per_port;
udev->level = hdev->level + 1;
udev->wusb = hub_is_wusb(hub);
@ -4504,7 +4537,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
goto loop_disable;
}
}
/* check for devices running slower than they could */
if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200
&& udev->speed == USB_SPEED_FULL
@ -4564,7 +4597,7 @@ loop:
dev_err(hub_dev, "unable to enumerate USB device on port %d\n",
port1);
}
done:
hub_port_disable(hub, port1, 1);
if (hcd->driver->relinquish_port && !hub->hdev->parent)
@ -4729,7 +4762,7 @@ static void hub_events(void)
* EM interference sometimes causes badly
* shielded USB devices to be shutdown by
* the hub, this hack enables them again.
* Works at least with mouse driver.
* Works at least with mouse driver.
*/
if (!(portstatus & USB_PORT_STAT_ENABLE)
&& !connect_change
@ -4841,7 +4874,7 @@ static void hub_events(void)
dev_dbg(hub_dev, "over-current change\n");
clear_hub_feature(hdev, C_HUB_OVER_CURRENT);
msleep(500); /* Cool down */
hub_power_on(hub, true);
hub_power_on(hub, true);
hub_hub_status(hub, &status, &unused);
if (status & HUB_STATUS_OVERCURRENT)
dev_err(hub_dev, "over-current "
@ -4861,7 +4894,7 @@ static void hub_events(void)
usb_unlock_device(hdev);
kref_put(&hub->kref, hub_release);
} /* end while (1) */
} /* end while (1) */
}
static int hub_thread(void *__unused)
@ -4886,7 +4919,7 @@ static int hub_thread(void *__unused)
static const struct usb_device_id hub_id_table[] = {
{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR
| USB_DEVICE_ID_MATCH_INT_CLASS,
| USB_DEVICE_ID_MATCH_INT_CLASS,
.idVendor = USB_VENDOR_GENESYS_LOGIC,
.bInterfaceClass = USB_CLASS_HUB,
.driver_info = HUB_QUIRK_CHECK_PORT_AUTOSUSPEND},
@ -5086,6 +5119,12 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
}
parent_hub = usb_hub_to_struct_hub(parent_hdev);
/* Disable USB2 hardware LPM.
* It will be re-enabled by the enumeration process.
*/
if (udev->usb2_hw_lpm_enabled == 1)
usb_set_usb2_hardware_lpm(udev, 0);
bos = udev->bos;
udev->bos = NULL;
@ -5120,13 +5159,13 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
if (ret < 0)
goto re_enumerate;
/* Device might have changed firmware (DFU or similar) */
if (descriptors_changed(udev, &descriptor, bos)) {
dev_info(&udev->dev, "device firmware changed\n");
udev->descriptor = descriptor; /* for disconnect() calls */
goto re_enumerate;
}
}
/* Restore the device's previous configuration */
if (!udev->actconfig)
@ -5151,7 +5190,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
udev->actconfig->desc.bConfigurationValue, ret);
mutex_unlock(hcd->bandwidth_mutex);
goto re_enumerate;
}
}
mutex_unlock(hcd->bandwidth_mutex);
usb_set_device_state(udev, USB_STATE_CONFIGURED);
@ -5193,12 +5232,13 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
done:
/* Now that the alt settings are re-installed, enable LTM and LPM. */
usb_set_usb2_hardware_lpm(udev, 1);
usb_unlocked_enable_lpm(udev);
usb_enable_ltm(udev);
usb_release_bos_descriptor(udev);
udev->bos = bos;
return 0;
re_enumerate:
/* LPM state doesn't matter when we're about to destroy the device. */
hub_port_logical_disconnect(parent_hub, port1);

4
drivers/usb/core/message.c
View file

@ -1182,8 +1182,12 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
put_device(&dev->actconfig->interface[i]->dev);
dev->actconfig->interface[i] = NULL;
}
if (dev->usb2_hw_lpm_enabled == 1)
usb_set_usb2_hardware_lpm(dev, 0);
usb_unlocked_disable_lpm(dev);
usb_disable_ltm(dev);
dev->actconfig = NULL;
if (dev->state == USB_STATE_CONFIGURED)
usb_set_device_state(dev, USB_STATE_ADDRESS);

37
drivers/usb/core/quirks.c
View file

@ -13,6 +13,7 @@
#include <linux/usb.h>
#include <linux/usb/quirks.h>
#include <linux/usb/hcd.h>
#include "usb.h"
/* Lists of quirky USB devices, split in device quirks and interface quirks.
@ -161,6 +162,21 @@ static const struct usb_device_id usb_interface_quirk_list[] = {
{ } /* terminating entry must be last */
};
static const struct usb_device_id usb_amd_resume_quirk_list[] = {
/* Lenovo Mouse with Pixart controller */
{ USB_DEVICE(0x17ef, 0x602e), .driver_info = USB_QUIRK_RESET_RESUME },
/* Pixart Mouse */
{ USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
{ USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
{ USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Optical Mouse M90/M100 */
{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
{ } /* terminating entry must be last */
};
static bool usb_match_any_interface(struct usb_device *udev,
const struct usb_device_id *id)
{
@ -187,6 +203,18 @@ static bool usb_match_any_interface(struct usb_device *udev,
return false;
}
static int usb_amd_resume_quirk(struct usb_device *udev)
{
struct usb_hcd *hcd;
hcd = bus_to_hcd(udev->bus);
/* The device should be attached directly to root hub */
if (udev->level == 1 && hcd->amd_resume_bug == 1)
return 1;
return 0;
}
static u32 __usb_detect_quirks(struct usb_device *udev,
const struct usb_device_id *id)
{
@ -212,6 +240,15 @@ static u32 __usb_detect_quirks(struct usb_device *udev,
void usb_detect_quirks(struct usb_device *udev)
{
udev->quirks = __usb_detect_quirks(udev, usb_quirk_list);
/*
* Pixart-based mice would trigger remote wakeup issue on AMD
* Yangtze chipset, so set them as RESET_RESUME flag.
*/
if (usb_amd_resume_quirk(udev))
udev->quirks |= __usb_detect_quirks(udev,
usb_amd_resume_quirk_list);
if (udev->quirks)
dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
udev->quirks);

64
drivers/usb/core/sysfs.c
View file

@ -23,14 +23,16 @@ static ssize_t field##_show(struct device *dev, \
{ \
struct usb_device *udev; \
struct usb_host_config *actconfig; \
ssize_t rc = 0; \
\
udev = to_usb_device(dev); \
usb_lock_device(udev); \
actconfig = udev->actconfig; \
if (actconfig) \
return sprintf(buf, format_string, \
rc = sprintf(buf, format_string, \
actconfig->desc.field); \
else \
return 0; \
usb_unlock_device(udev); \
return rc; \
} \
#define usb_actconfig_attr(field, format_string) \
@ -45,12 +47,15 @@ static ssize_t bMaxPower_show(struct device *dev,
{
struct usb_device *udev;
struct usb_host_config *actconfig;
ssize_t rc = 0;
udev = to_usb_device(dev);
usb_lock_device(udev);
actconfig = udev->actconfig;
if (!actconfig)
return 0;
return sprintf(buf, "%dmA\n", usb_get_max_power(udev, actconfig));
if (actconfig)
rc = sprintf(buf, "%dmA\n", usb_get_max_power(udev, actconfig));
usb_unlock_device(udev);
return rc;
}
static DEVICE_ATTR_RO(bMaxPower);
@ -59,12 +64,15 @@ static ssize_t configuration_show(struct device *dev,
{
struct usb_device *udev;
struct usb_host_config *actconfig;
ssize_t rc = 0;
udev = to_usb_device(dev);
usb_lock_device(udev);
actconfig = udev->actconfig;
if ((!actconfig) || (!actconfig->string))
return 0;
return sprintf(buf, "%s\n", actconfig->string);
if (actconfig && actconfig->string)
rc = sprintf(buf, "%s\n", actconfig->string);
usb_unlock_device(udev);
return rc;
}
static DEVICE_ATTR_RO(configuration);
@ -390,7 +398,8 @@ static DEVICE_ATTR_RW(autosuspend);
static const char on_string[] = "on";
static const char auto_string[] = "auto";
static void warn_level(void) {
static void warn_level(void)
{
static int level_warned;
if (!level_warned) {
@ -449,7 +458,7 @@ static ssize_t usb2_hardware_lpm_show(struct device *dev,
struct usb_device *udev = to_usb_device(dev);
const char *p;
if (udev->usb2_hw_lpm_enabled == 1)
if (udev->usb2_hw_lpm_allowed == 1)
p = "enabled";
else
p = "disabled";
@ -469,8 +478,10 @@ static ssize_t usb2_hardware_lpm_store(struct device *dev,
ret = strtobool(buf, &value);
if (!ret)
if (!ret) {
udev->usb2_hw_lpm_allowed = value;
ret = usb_set_usb2_hardware_lpm(udev, value);
}
usb_unlock_device(udev);
@ -644,7 +655,7 @@ static ssize_t authorized_store(struct device *dev,
result = usb_deauthorize_device(usb_dev);
else
result = usb_authorize_device(usb_dev);
return result < 0? result : size;
return result < 0 ? result : size;
}
static DEVICE_ATTR_IGNORE_LOCKDEP(authorized, S_IRUGO | S_IWUSR,
authorized_show, authorized_store);
@ -764,6 +775,7 @@ read_descriptors(struct file *filp, struct kobject *kobj,
* Following that are the raw descriptor entries for all the
* configurations (config plus subsidiary descriptors).
*/
usb_lock_device(udev);
for (cfgno = -1; cfgno < udev->descriptor.bNumConfigurations &&
nleft > 0; ++cfgno) {
if (cfgno < 0) {
@ -784,6 +796,7 @@ read_descriptors(struct file *filp, struct kobject *kobj,
off -= srclen;
}
}
usb_unlock_device(udev);
return count - nleft;
}
@ -870,9 +883,7 @@ static ssize_t interface_show(struct device *dev, struct device_attribute *attr,
char *string;
intf = to_usb_interface(dev);
string = intf->cur_altsetting->string;
barrier(); /* The altsetting might change! */
string = ACCESS_ONCE(intf->cur_altsetting->string);
if (!string)
return 0;
return sprintf(buf, "%s\n", string);
@ -888,7 +899,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
intf = to_usb_interface(dev);
udev = interface_to_usbdev(intf);
alt = intf->cur_altsetting;
alt = ACCESS_ONCE(intf->cur_altsetting);
return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02X"
"ic%02Xisc%02Xip%02Xin%02X\n",
@ -909,23 +920,14 @@ static ssize_t supports_autosuspend_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct usb_interface *intf;
struct usb_device *udev;
int ret;
int s;
intf = to_usb_interface(dev);
udev = interface_to_usbdev(intf);
usb_lock_device(udev);
device_lock(dev);
/* Devices will be autosuspended even when an interface isn't claimed */
if (!intf->dev.driver ||
to_usb_driver(intf->dev.driver)->supports_autosuspend)
ret = sprintf(buf, "%u\n", 1);
else
ret = sprintf(buf, "%u\n", 0);
usb_unlock_device(udev);
s = (!dev->driver || to_usb_driver(dev->driver)->supports_autosuspend);
device_unlock(dev);
return ret;
return sprintf(buf, "%u\n", s);
}
static DEVICE_ATTR_RO(supports_autosuspend);

44
drivers/usb/core/urb.c
View file

@ -138,13 +138,19 @@ void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor)
}
EXPORT_SYMBOL_GPL(usb_anchor_urb);
static int usb_anchor_check_wakeup(struct usb_anchor *anchor)
{
return atomic_read(&anchor->suspend_wakeups) == 0 &&
list_empty(&anchor->urb_list);
}
/* Callers must hold anchor->lock */
static void __usb_unanchor_urb(struct urb *urb, struct usb_anchor *anchor)
{
urb->anchor = NULL;
list_del(&urb->anchor_list);
usb_put_urb(urb);
if (list_empty(&anchor->urb_list))
if (usb_anchor_check_wakeup(anchor))
wake_up(&anchor->wait);
}
@ -845,6 +851,39 @@ void usb_unlink_anchored_urbs(struct usb_anchor *anchor)
}
EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs);
/**
* usb_anchor_suspend_wakeups
* @anchor: the anchor you want to suspend wakeups on
*
* Call this to stop the last urb being unanchored from waking up any
* usb_wait_anchor_empty_timeout waiters. This is used in the hcd urb give-
* back path to delay waking up until after the completion handler has run.
*/
void usb_anchor_suspend_wakeups(struct usb_anchor *anchor)
{
if (anchor)
atomic_inc(&anchor->suspend_wakeups);
}
EXPORT_SYMBOL_GPL(usb_anchor_suspend_wakeups);
/**
* usb_anchor_resume_wakeups
* @anchor: the anchor you want to resume wakeups on
*
* Allow usb_wait_anchor_empty_timeout waiters to be woken up again, and
* wake up any current waiters if the anchor is empty.
*/
void usb_anchor_resume_wakeups(struct usb_anchor *anchor)
{
if (!anchor)
return;
atomic_dec(&anchor->suspend_wakeups);
if (usb_anchor_check_wakeup(anchor))
wake_up(&anchor->wait);
}
EXPORT_SYMBOL_GPL(usb_anchor_resume_wakeups);
/**
* usb_wait_anchor_empty_timeout - wait for an anchor to be unused
* @anchor: the anchor you want to become unused
@ -858,7 +897,8 @@ EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs);
int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor,
unsigned int timeout)
{
return wait_event_timeout(anchor->wait, list_empty(&anchor->urb_list),
return wait_event_timeout(anchor->wait,
usb_anchor_check_wakeup(anchor),
msecs_to_jiffies(timeout));
}
EXPORT_SYMBOL_GPL(usb_wait_anchor_empty_timeout);

2
drivers/usb/core/usb.c
View file

@ -497,7 +497,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
dev->authorized = 1;
else {
dev->authorized = usb_hcd->authorized_default;
dev->wusb = usb_bus_is_wusb(bus)? 1 : 0;
dev->wusb = usb_bus_is_wusb(bus) ? 1 : 0;
}
return dev;
}

1
drivers/usb/core/usb.h
View file

@ -35,6 +35,7 @@ extern int usb_get_device_descriptor(struct usb_device *dev,
unsigned int size);
extern int usb_get_bos_descriptor(struct usb_device *dev);
extern void usb_release_bos_descriptor(struct usb_device *dev);
extern int usb_device_supports_lpm(struct usb_device *udev);
extern char *usb_cache_string(struct usb_device *udev, int index);
extern int usb_set_configuration(struct usb_device *dev, int configuration);
extern int usb_choose_configuration(struct usb_device *udev);

3
drivers/usb/dwc3/core.c
View file

@ -584,7 +584,7 @@ static int dwc3_remove(struct platform_device *pdev)
usb_phy_set_suspend(dwc->usb2_phy, 1);
usb_phy_set_suspend(dwc->usb3_phy, 1);
pm_runtime_put(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
dwc3_debugfs_exit(dwc);
@ -691,7 +691,6 @@ static int dwc3_resume(struct device *dev)
usb_phy_init(dwc->usb3_phy);
usb_phy_init(dwc->usb2_phy);
msleep(100);
spin_lock_irqsave(&dwc->lock, flags);

2
drivers/usb/dwc3/dwc3-pci.c
View file

@ -165,7 +165,6 @@ static int dwc3_pci_probe(struct pci_dev *pci,
return 0;
err3:
pci_set_drvdata(pci, NULL);
platform_device_put(dwc3);
err1:
pci_disable_device(pci);
@ -180,7 +179,6 @@ static void dwc3_pci_remove(struct pci_dev *pci)
platform_device_unregister(glue->dwc3);
platform_device_unregister(glue->usb2_phy);
platform_device_unregister(glue->usb3_phy);
pci_set_drvdata(pci, NULL);
pci_disable_device(pci);
}

6
drivers/usb/dwc3/ep0.c
View file

@ -352,7 +352,7 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc,
break;
default:
return -EINVAL;
};
}
response_pkt = (__le16 *) dwc->setup_buf;
*response_pkt = cpu_to_le16(usb_status);
@ -470,7 +470,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
default:
return -EINVAL;
};
}
return 0;
}
@ -709,7 +709,7 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
dev_vdbg(dwc->dev, "Forwarding to gadget driver\n");
ret = dwc3_ep0_delegate_req(dwc, ctrl);
break;
};
}
return ret;
}

4
drivers/usb/early/ehci-dbgp.c
View file

@ -568,10 +568,6 @@ try_again:
dbgp_printk("Could not find attached debug device\n");
goto err;
}
if (ret < 0) {
dbgp_printk("Attached device is not a debug device\n");
goto err;
}
dbgp_endpoint_out = dbgp_desc.bDebugOutEndpoint;
dbgp_endpoint_in = dbgp_desc.bDebugInEndpoint;

34
drivers/usb/gadget/Kconfig
View file

@ -58,6 +58,20 @@ config USB_GADGET_DEBUG
trying to track down. Never enable these messages for a
production build.
config USB_GADGET_VERBOSE
bool "Verbose debugging Messages (DEVELOPMENT)"
depends on USB_GADGET_DEBUG
help
Many controller and gadget drivers will print verbose debugging
messages if you use this option to ask for those messages.
Avoid enabling these messages, even if you're actively
debugging such a driver. Many drivers will emit so many
messages that the driver timings are affected, which will
either create new failure modes or remove the one you're
trying to track down. Never enable these messages for a
production build.
config USB_GADGET_DEBUG_FILES
boolean "Debugging information files (DEVELOPMENT)"
depends on PROC_FS
@ -525,6 +539,9 @@ config USB_F_SUBSET
config USB_F_RNDIS
tristate
config USB_F_MASS_STORAGE
tristate
choice
tristate "USB Gadget Drivers"
default USB_ETH
@ -662,6 +679,16 @@ config USB_CONFIGFS_PHONET
help
The Phonet protocol implementation for USB device.
config USB_CONFIGFS_MASS_STORAGE
boolean "Mass storage"
depends on USB_CONFIGFS
select USB_F_MASS_STORAGE
help
The Mass Storage Gadget acts as a USB Mass Storage disk drive.
As its storage repository it can use a regular file or a block
device (in much the same way as the "loop" device driver),
specified as a module parameter or sysfs option.
config USB_ZERO
tristate "Gadget Zero (DEVELOPMENT)"
select USB_LIBCOMPOSITE
@ -878,6 +905,7 @@ config USB_MASS_STORAGE
tristate "Mass Storage Gadget"
depends on BLOCK
select USB_LIBCOMPOSITE
select USB_F_MASS_STORAGE
help
The Mass Storage Gadget acts as a USB Mass Storage disk drive.
As its storage repository it can use a regular file or a block
@ -1001,6 +1029,7 @@ config USB_G_ACM_MS
select USB_LIBCOMPOSITE
select USB_U_SERIAL
select USB_F_ACM
select USB_F_MASS_STORAGE
help
This driver provides two functions in one configuration:
a mass storage, and a CDC ACM (serial port) link.
@ -1015,8 +1044,8 @@ config USB_G_MULTI
select USB_LIBCOMPOSITE
select USB_U_SERIAL
select USB_U_ETHER
select USB_U_RNDIS
select USB_F_ACM
select USB_F_MASS_STORAGE
help
The Multifunction Composite Gadget provides Ethernet (RNDIS
and/or CDC Ethernet), mass storage and ACM serial link
@ -1035,6 +1064,8 @@ config USB_G_MULTI
config USB_G_MULTI_RNDIS
bool "RNDIS + CDC Serial + Storage configuration"
depends on USB_G_MULTI
select USB_U_RNDIS
select USB_F_RNDIS
default y
help
This option enables a configuration with RNDIS, CDC Serial and
@ -1048,6 +1079,7 @@ config USB_G_MULTI_CDC
bool "CDC Ethernet + CDC Serial + Storage configuration"
depends on USB_G_MULTI
default n
select USB_F_ECM
help
This option enables a configuration with CDC Ethernet (ECM), CDC
Serial and Mass Storage functions available in the Multifunction

5
drivers/usb/gadget/Makefile
View file

@ -1,7 +1,8 @@
#
# USB peripheral controller drivers
#
ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG
ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG
ccflags-$(CONFIG_USB_GADGET_VERBOSE) += -DVERBOSE_DEBUG
obj-$(CONFIG_USB_GADGET) += udc-core.o
obj-$(CONFIG_USB_LIBCOMPOSITE) += libcomposite.o
@ -60,6 +61,8 @@ usb_f_ecm_subset-y := f_subset.o
obj-$(CONFIG_USB_F_SUBSET) += usb_f_ecm_subset.o
usb_f_rndis-y := f_rndis.o
obj-$(CONFIG_USB_F_RNDIS) += usb_f_rndis.o
usb_f_mass_storage-y := f_mass_storage.o storage_common.o
obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o
#
# USB gadget drivers

125
drivers/usb/gadget/acm_ms.c
View file

@ -31,16 +31,7 @@
#define ACM_MS_VENDOR_NUM 0x1d6b /* Linux Foundation */
#define ACM_MS_PRODUCT_NUM 0x0106 /* Composite Gadget: ACM + MS*/
/*-------------------------------------------------------------------------*/
/*
* Kbuild is not very cooperative with respect to linking separately
* compiled library objects into one module. So for now we won't use
* separate compilation ... ensuring init/exit sections work to shrink
* the runtime footprint, and giving us at least some parts of what
* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
*/
#include "f_mass_storage.c"
#include "f_mass_storage.h"
/*-------------------------------------------------------------------------*/
USB_GADGET_COMPOSITE_OPTIONS();
@ -104,18 +95,35 @@ static struct usb_gadget_strings *dev_strings[] = {
/****************************** Configurations ******************************/
static struct fsg_module_parameters fsg_mod_data = { .stall = 1 };
FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
static struct fsg_common fsg_common;
static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
#else
/*
* Number of buffers we will use.
* 2 is usually enough for good buffering pipeline
*/
#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
#endif /* CONFIG_USB_DEBUG */
FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
/*-------------------------------------------------------------------------*/
static struct usb_function *f_acm;
static struct usb_function_instance *f_acm_inst;
static struct usb_function_instance *fi_msg;
static struct usb_function *f_msg;
/*
* We _always_ have both ACM and mass storage functions.
*/
static int __init acm_ms_do_config(struct usb_configuration *c)
{
struct fsg_opts *opts;
int status;
if (gadget_is_otg(c->cdev->gadget)) {
@ -123,31 +131,37 @@ static int __init acm_ms_do_config(struct usb_configuration *c)
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
f_acm_inst = usb_get_function_instance("acm");
if (IS_ERR(f_acm_inst))
return PTR_ERR(f_acm_inst);
opts = fsg_opts_from_func_inst(fi_msg);
f_acm = usb_get_function(f_acm_inst);
if (IS_ERR(f_acm)) {
status = PTR_ERR(f_acm);
goto err_func;
if (IS_ERR(f_acm))
return PTR_ERR(f_acm);
f_msg = usb_get_function(fi_msg);
if (IS_ERR(f_msg)) {
status = PTR_ERR(f_msg);
goto put_acm;
}
status = usb_add_function(c, f_acm);
if (status < 0)
goto err_conf;
goto put_msg;
status = fsg_bind_config(c->cdev, c, &fsg_common);
if (status < 0)
goto err_fsg;
status = fsg_common_run_thread(opts->common);
if (status)
goto remove_acm;
status = usb_add_function(c, f_msg);
if (status)
goto remove_acm;
return 0;
err_fsg:
remove_acm:
usb_remove_function(c, f_acm);
err_conf:
put_msg:
usb_put_function(f_msg);
put_acm:
usb_put_function(f_acm);
err_func:
usb_put_function_instance(f_acm_inst);
return status;
}
@ -163,45 +177,82 @@ static struct usb_configuration acm_ms_config_driver = {
static int __init acm_ms_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
struct fsg_opts *opts;
struct fsg_config config;
int status;
void *retp;
/* set up mass storage function */
retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data);
if (IS_ERR(retp)) {
status = PTR_ERR(retp);
return PTR_ERR(retp);
f_acm_inst = usb_get_function_instance("acm");
if (IS_ERR(f_acm_inst))
return PTR_ERR(f_acm_inst);
fi_msg = usb_get_function_instance("mass_storage");
if (IS_ERR(fi_msg)) {
status = PTR_ERR(fi_msg);
goto fail_get_msg;
}
/* set up mass storage function */
fsg_config_from_params(&config, &fsg_mod_data, fsg_num_buffers);
opts = fsg_opts_from_func_inst(fi_msg);
opts->no_configfs = true;
status = fsg_common_set_num_buffers(opts->common, fsg_num_buffers);
if (status)
goto fail;
status = fsg_common_set_nluns(opts->common, config.nluns);
if (status)
goto fail_set_nluns;
status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
if (status)
goto fail_set_cdev;
fsg_common_set_sysfs(opts->common, true);
status = fsg_common_create_luns(opts->common, &config);
if (status)
goto fail_set_cdev;
fsg_common_set_inquiry_string(opts->common, config.vendor_name,
config.product_name);
/*
* Allocate string descriptor numbers ... note that string
* contents can be overridden by the composite_dev glue.
*/
status = usb_string_ids_tab(cdev, strings_dev);
if (status < 0)
goto fail1;
goto fail_string_ids;
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
/* register our configuration */
status = usb_add_config(cdev, &acm_ms_config_driver, acm_ms_do_config);
if (status < 0)
goto fail1;
goto fail_string_ids;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
DRIVER_DESC);
fsg_common_put(&fsg_common);
return 0;
/* error recovery */
fail1:
fsg_common_put(&fsg_common);
fail_string_ids:
fsg_common_remove_luns(opts->common);
fail_set_cdev:
fsg_common_free_luns(opts->common);
fail_set_nluns:
fsg_common_free_buffers(opts->common);
fail:
usb_put_function_instance(fi_msg);
fail_get_msg:
usb_put_function_instance(f_acm_inst);
return status;
}
static int __exit acm_ms_unbind(struct usb_composite_dev *cdev)
{
usb_put_function(f_msg);
usb_put_function_instance(fi_msg);
usb_put_function(f_acm);
usb_put_function_instance(f_acm_inst);
return 0;

2
drivers/usb/gadget/amd5536udc.c
View file

@ -3078,8 +3078,6 @@ static void udc_pci_remove(struct pci_dev *pdev)
if (dev->active)
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
udc_remove(dev);
}

2
drivers/usb/gadget/composite.c
View file

@ -354,7 +354,7 @@ static u8 encode_bMaxPower(enum usb_device_speed speed,
return DIV_ROUND_UP(val, 8);
default:
return DIV_ROUND_UP(val, 2);
};
}
}
static int config_buf(struct usb_configuration *config,

10
drivers/usb/gadget/configfs.c
View file

@ -557,7 +557,7 @@ static struct config_group *function_make(
fi = usb_get_function_instance(func_name);
if (IS_ERR(fi))
return ERR_PTR(PTR_ERR(fi));
return ERR_CAST(fi);
ret = config_item_set_name(&fi->group.cg_item, name);
if (ret) {
@ -991,6 +991,14 @@ static struct configfs_subsystem gadget_subsys = {
.su_mutex = __MUTEX_INITIALIZER(gadget_subsys.su_mutex),
};
void unregister_gadget_item(struct config_item *item)
{
struct gadget_info *gi = to_gadget_info(item);
unregister_gadget(gi);
}
EXPORT_SYMBOL(unregister_gadget_item);
static int __init gadget_cfs_init(void)
{
int ret;

6
drivers/usb/gadget/configfs.h Normal file
View file

@ -0,0 +1,6 @@
#ifndef USB__GADGET__CONFIGFS__H
#define USB__GADGET__CONFIGFS__H
void unregister_gadget_item(struct config_item *item);
#endif /* USB__GADGET__CONFIGFS__H */

6
drivers/usb/gadget/dummy_hcd.c
View file

@ -544,7 +544,7 @@ static int dummy_enable(struct usb_ep *_ep,
default:
val = "ctrl";
break;
}; val; }),
} val; }),
max, ep->stream_en ? "enabled" : "disabled");
/* at this point real hardware should be NAKing transfers
@ -2271,7 +2271,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb)
default:
s = "?";
break;
}; s; }),
} s; }),
ep, ep ? (usb_pipein(urb->pipe) ? "in" : "out") : "",
({ char *s; \
switch (usb_pipetype(urb->pipe)) { \
@ -2287,7 +2287,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb)
default: \
s = "-iso"; \
break; \
}; s; }),
} s; }),
urb->actual_length, urb->transfer_buffer_length);
}

1270
drivers/usb/gadget/f_mass_storage.c
View file

File diff suppressed because it is too large Load diff

166
drivers/usb/gadget/f_mass_storage.h Normal file
View file

@ -0,0 +1,166 @@
#ifndef USB_F_MASS_STORAGE_H
#define USB_F_MASS_STORAGE_H
#include <linux/usb/composite.h>
#include "storage_common.h"
struct fsg_module_parameters {
char *file[FSG_MAX_LUNS];
bool ro[FSG_MAX_LUNS];
bool removable[FSG_MAX_LUNS];
bool cdrom[FSG_MAX_LUNS];
bool nofua[FSG_MAX_LUNS];
unsigned int file_count, ro_count, removable_count, cdrom_count;
unsigned int nofua_count;
unsigned int luns; /* nluns */
bool stall; /* can_stall */
};
#define _FSG_MODULE_PARAM_ARRAY(prefix, params, name, type, desc) \
module_param_array_named(prefix ## name, params.name, type, \
&prefix ## params.name ## _count, \
S_IRUGO); \
MODULE_PARM_DESC(prefix ## name, desc)
#define _FSG_MODULE_PARAM(prefix, params, name, type, desc) \
module_param_named(prefix ## name, params.name, type, \
S_IRUGO); \
MODULE_PARM_DESC(prefix ## name, desc)
#define __FSG_MODULE_PARAMETERS(prefix, params) \
_FSG_MODULE_PARAM_ARRAY(prefix, params, file, charp, \
"names of backing files or devices"); \
_FSG_MODULE_PARAM_ARRAY(prefix, params, ro, bool, \
"true to force read-only"); \
_FSG_MODULE_PARAM_ARRAY(prefix, params, removable, bool, \
"true to simulate removable media"); \
_FSG_MODULE_PARAM_ARRAY(prefix, params, cdrom, bool, \
"true to simulate CD-ROM instead of disk"); \
_FSG_MODULE_PARAM_ARRAY(prefix, params, nofua, bool, \
"true to ignore SCSI WRITE(10,12) FUA bit"); \
_FSG_MODULE_PARAM(prefix, params, luns, uint, \
"number of LUNs"); \
_FSG_MODULE_PARAM(prefix, params, stall, bool, \
"false to prevent bulk stalls")
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
#define FSG_MODULE_PARAMETERS(prefix, params) \
__FSG_MODULE_PARAMETERS(prefix, params); \
module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO);\
MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers")
#else
#define FSG_MODULE_PARAMETERS(prefix, params) \
__FSG_MODULE_PARAMETERS(prefix, params)
#endif
struct fsg_common;
/* FSF callback functions */
struct fsg_operations {
/*
* Callback function to call when thread exits. If no
* callback is set or it returns value lower then zero MSF
* will force eject all LUNs it operates on (including those
* marked as non-removable or with prevent_medium_removal flag
* set).
*/
int (*thread_exits)(struct fsg_common *common);
};
struct fsg_lun_opts {
struct config_group group;
struct fsg_lun *lun;
int lun_id;
};
struct fsg_opts {
struct fsg_common *common;
struct usb_function_instance func_inst;
struct fsg_lun_opts lun0;
struct config_group *default_groups[2];
bool no_configfs; /* for legacy gadgets */
/*
* Read/write access to configfs attributes is handled by configfs.
*
* This is to protect the data from concurrent access by read/write
* and create symlink/remove symlink.
*/
struct mutex lock;
int refcnt;
};
struct fsg_lun_config {
const char *filename;
char ro;
char removable;
char cdrom;
char nofua;
};
struct fsg_config {
unsigned nluns;
struct fsg_lun_config luns[FSG_MAX_LUNS];
/* Callback functions. */
const struct fsg_operations *ops;
/* Gadget's private data. */
void *private_data;
const char *vendor_name; /* 8 characters or less */
const char *product_name; /* 16 characters or less */
char can_stall;
unsigned int fsg_num_buffers;
};
static inline struct fsg_opts *
fsg_opts_from_func_inst(const struct usb_function_instance *fi)
{
return container_of(fi, struct fsg_opts, func_inst);
}
void fsg_common_get(struct fsg_common *common);
void fsg_common_put(struct fsg_common *common);
void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs);
int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n);
void fsg_common_free_buffers(struct fsg_common *common);
int fsg_common_set_cdev(struct fsg_common *common,
struct usb_composite_dev *cdev, bool can_stall);
void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs);
void fsg_common_remove_luns(struct fsg_common *common);
void fsg_common_free_luns(struct fsg_common *common);
int fsg_common_set_nluns(struct fsg_common *common, int nluns);
void fsg_common_set_ops(struct fsg_common *common,
const struct fsg_operations *ops);
int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
unsigned int id, const char *name,
const char **name_pfx);
int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg);
void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
const char *pn);
int fsg_common_run_thread(struct fsg_common *common);
void fsg_config_from_params(struct fsg_config *cfg,
const struct fsg_module_parameters *params,
unsigned int fsg_num_buffers);
#endif /* USB_F_MASS_STORAGE_H */

2
drivers/usb/gadget/g_ffs.c
View file

@ -76,7 +76,9 @@ struct gfs_ffs_obj {
USB_GADGET_COMPOSITE_OPTIONS();
#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
USB_ETHERNET_MODULE_PARAMETERS();
#endif
static struct usb_device_descriptor gfs_dev_desc = {
.bLength = sizeof gfs_dev_desc,

3
drivers/usb/gadget/goku_udc.c
View file

@ -1165,7 +1165,7 @@ static int udc_proc_read(struct seq_file *m, void *v)
s = "invalid"; break;
default:
s = "?"; break;
}; s; }),
} s; }),
(tmp & EPxSTATUS_TOGGLE) ? "data1" : "data0",
(tmp & EPxSTATUS_SUSPEND) ? " suspend" : "",
(tmp & EPxSTATUS_FIFO_DISABLE) ? " disable" : "",
@ -1701,7 +1701,6 @@ static void goku_remove(struct pci_dev *pdev)
if (dev->enabled)
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
dev->regs = NULL;
INFO(dev, "unbind\n");

125
drivers/usb/gadget/mass_storage.c
View file

@ -37,16 +37,16 @@
#define DRIVER_DESC "Mass Storage Gadget"
#define DRIVER_VERSION "2009/09/11"
/*-------------------------------------------------------------------------*/
/*
* kbuild is not very cooperative with respect to linking separately
* compiled library objects into one module. So for now we won't use
* separate compilation ... ensuring init/exit sections work to shrink
* the runtime footprint, and giving us at least some parts of what
* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
* Thanks to NetChip Technologies for donating this product ID.
*
* DO NOT REUSE THESE IDs with any other driver!! Ever!!
* Instead: allocate your own, using normal USB-IF procedures.
*/
#include "f_mass_storage.c"
#define FSG_VENDOR_ID 0x0525 /* NetChip */
#define FSG_PRODUCT_ID 0xa4a5 /* Linux-USB File-backed Storage Gadget */
#include "f_mass_storage.h"
/*-------------------------------------------------------------------------*/
USB_GADGET_COMPOSITE_OPTIONS();
@ -97,11 +97,28 @@ static struct usb_gadget_strings *dev_strings[] = {
NULL,
};
static struct usb_function_instance *fi_msg;
static struct usb_function *f_msg;
/****************************** Configurations ******************************/
static struct fsg_module_parameters mod_data = {
.stall = 1
};
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
#else
/*
* Number of buffers we will use.
* 2 is usually enough for good buffering pipeline
*/
#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
FSG_MODULE_PARAMETERS(/* no prefix */, mod_data);
static unsigned long msg_registered;
@ -115,13 +132,7 @@ static int msg_thread_exits(struct fsg_common *common)
static int __init msg_do_config(struct usb_configuration *c)
{
static const struct fsg_operations ops = {
.thread_exits = msg_thread_exits,
};
static struct fsg_common common;
struct fsg_common *retp;
struct fsg_config config;
struct fsg_opts *opts;
int ret;
if (gadget_is_otg(c->cdev->gadget)) {
@ -129,15 +140,24 @@ static int __init msg_do_config(struct usb_configuration *c)
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
fsg_config_from_params(&config, &mod_data);
config.ops = &ops;
opts = fsg_opts_from_func_inst(fi_msg);
retp = fsg_common_init(&common, c->cdev, &config);
if (IS_ERR(retp))
return PTR_ERR(retp);
f_msg = usb_get_function(fi_msg);
if (IS_ERR(f_msg))
return PTR_ERR(f_msg);
ret = fsg_bind_config(c->cdev, c, &common);
fsg_common_put(&common);
ret = fsg_common_run_thread(opts->common);
if (ret)
goto put_func;
ret = usb_add_function(c, f_msg);
if (ret)
goto put_func;
return 0;
put_func:
usb_put_function(f_msg);
return ret;
}
@ -152,23 +172,79 @@ static struct usb_configuration msg_config_driver = {
static int __init msg_bind(struct usb_composite_dev *cdev)
{
static const struct fsg_operations ops = {
.thread_exits = msg_thread_exits,
};
struct fsg_opts *opts;
struct fsg_config config;
int status;
fi_msg = usb_get_function_instance("mass_storage");
if (IS_ERR(fi_msg))
return PTR_ERR(fi_msg);
fsg_config_from_params(&config, &mod_data, fsg_num_buffers);
opts = fsg_opts_from_func_inst(fi_msg);
opts->no_configfs = true;
status = fsg_common_set_num_buffers(opts->common, fsg_num_buffers);
if (status)
goto fail;
status = fsg_common_set_nluns(opts->common, config.nluns);
if (status)
goto fail_set_nluns;
fsg_common_set_ops(opts->common, &ops);
status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
if (status)
goto fail_set_cdev;
fsg_common_set_sysfs(opts->common, true);
status = fsg_common_create_luns(opts->common, &config);
if (status)
goto fail_set_cdev;
fsg_common_set_inquiry_string(opts->common, config.vendor_name,
config.product_name);
status = usb_string_ids_tab(cdev, strings_dev);
if (status < 0)
return status;
goto fail_string_ids;
msg_device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
status = usb_add_config(cdev, &msg_config_driver, msg_do_config);
if (status < 0)
return status;
goto fail_string_ids;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&cdev->gadget->dev,
DRIVER_DESC ", version: " DRIVER_VERSION "\n");
set_bit(0, &msg_registered);
return 0;
fail_string_ids:
fsg_common_remove_luns(opts->common);
fail_set_cdev:
fsg_common_free_luns(opts->common);
fail_set_nluns:
fsg_common_free_buffers(opts->common);
fail:
usb_put_function_instance(fi_msg);
return status;
}
static int msg_unbind(struct usb_composite_dev *cdev)
{
if (!IS_ERR(f_msg))
usb_put_function(f_msg);
if (!IS_ERR(fi_msg))
usb_put_function_instance(fi_msg);
return 0;
}
/****************************** Some noise ******************************/
@ -179,6 +255,7 @@ static __refdata struct usb_composite_driver msg_driver = {
.needs_serial = 1,
.strings = dev_strings,
.bind = msg_bind,
.unbind = msg_unbind,
};
MODULE_DESCRIPTION(DRIVER_DESC);

249
drivers/usb/gadget/multi.c
View file

@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include "u_serial.h"
#if defined USB_ETH_RNDIS
@ -32,22 +33,11 @@ MODULE_AUTHOR("Michal Nazarewicz");
MODULE_LICENSE("GPL");
/***************************** All the files... *****************************/
#include "f_mass_storage.h"
/*
* kbuild is not very cooperative with respect to linking separately
* compiled library objects into one module. So for now we won't use
* separate compilation ... ensuring init/exit sections work to shrink
* the runtime footprint, and giving us at least some parts of what
* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
*/
#include "f_mass_storage.c"
#define USBF_ECM_INCLUDED
#include "f_ecm.c"
#include "u_ecm.h"
#ifdef USB_ETH_RNDIS
# define USB_FRNDIS_INCLUDED
# include "f_rndis.c"
# include "u_rndis.h"
# include "rndis.h"
#endif
#include "u_ether.h"
@ -132,22 +122,36 @@ static struct usb_gadget_strings *dev_strings[] = {
/****************************** Configurations ******************************/
static struct fsg_module_parameters fsg_mod_data = { .stall = 1 };
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
#else
/*
* Number of buffers we will use.
* 2 is usually enough for good buffering pipeline
*/
#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
#endif /* CONFIG_USB_DEBUG */
FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
static struct fsg_common fsg_common;
static u8 host_mac[ETH_ALEN];
static struct usb_function_instance *fi_acm;
static struct eth_dev *the_dev;
static struct usb_function_instance *fi_msg;
/********** RNDIS **********/
#ifdef USB_ETH_RNDIS
static struct usb_function_instance *fi_rndis;
static struct usb_function *f_acm_rndis;
static struct usb_function *f_rndis;
static struct usb_function *f_msg_rndis;
static __init int rndis_do_config(struct usb_configuration *c)
{
struct fsg_opts *fsg_opts;
int ret;
if (gadget_is_otg(c->cdev->gadget)) {
@ -155,27 +159,50 @@ static __init int rndis_do_config(struct usb_configuration *c)
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
ret = rndis_bind_config(c, host_mac, the_dev);
f_rndis = usb_get_function(fi_rndis);
if (IS_ERR(f_rndis))
return PTR_ERR(f_rndis);
ret = usb_add_function(c, f_rndis);
if (ret < 0)
return ret;
goto err_func_rndis;
f_acm_rndis = usb_get_function(fi_acm);
if (IS_ERR(f_acm_rndis))
return PTR_ERR(f_acm_rndis);
if (IS_ERR(f_acm_rndis)) {
ret = PTR_ERR(f_acm_rndis);
goto err_func_acm;
}
ret = usb_add_function(c, f_acm_rndis);
if (ret)
goto err_conf;
ret = fsg_bind_config(c->cdev, c, &fsg_common);
if (ret < 0)
f_msg_rndis = usb_get_function(fi_msg);
if (IS_ERR(f_msg_rndis)) {
ret = PTR_ERR(f_msg_rndis);
goto err_fsg;
}
fsg_opts = fsg_opts_from_func_inst(fi_msg);
ret = fsg_common_run_thread(fsg_opts->common);
if (ret)
goto err_run;
ret = usb_add_function(c, f_msg_rndis);
if (ret)
goto err_run;
return 0;
err_run:
usb_put_function(f_msg_rndis);
err_fsg:
usb_remove_function(c, f_acm_rndis);
err_conf:
usb_put_function(f_acm_rndis);
err_func_acm:
usb_remove_function(c, f_rndis);
err_func_rndis:
usb_put_function(f_rndis);
return ret;
}
@ -205,10 +232,14 @@ static __ref int rndis_config_register(struct usb_composite_dev *cdev)
/********** CDC ECM **********/
#ifdef CONFIG_USB_G_MULTI_CDC
static struct usb_function_instance *fi_ecm;
static struct usb_function *f_acm_multi;
static struct usb_function *f_ecm;
static struct usb_function *f_msg_multi;
static __init int cdc_do_config(struct usb_configuration *c)
{
struct fsg_opts *fsg_opts;
int ret;
if (gadget_is_otg(c->cdev->gadget)) {
@ -216,28 +247,51 @@ static __init int cdc_do_config(struct usb_configuration *c)
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
ret = ecm_bind_config(c, host_mac, the_dev);
f_ecm = usb_get_function(fi_ecm);
if (IS_ERR(f_ecm))
return PTR_ERR(f_ecm);
ret = usb_add_function(c, f_ecm);
if (ret < 0)
return ret;
goto err_func_ecm;
/* implicit port_num is zero */
f_acm_multi = usb_get_function(fi_acm);
if (IS_ERR(f_acm_multi))
return PTR_ERR(f_acm_multi);
if (IS_ERR(f_acm_multi)) {
ret = PTR_ERR(f_acm_multi);
goto err_func_acm;
}
ret = usb_add_function(c, f_acm_multi);
if (ret)
goto err_conf;
ret = fsg_bind_config(c->cdev, c, &fsg_common);
if (ret < 0)
f_msg_multi = usb_get_function(fi_msg);
if (IS_ERR(f_msg_multi)) {
ret = PTR_ERR(f_msg_multi);
goto err_fsg;
}
fsg_opts = fsg_opts_from_func_inst(fi_msg);
ret = fsg_common_run_thread(fsg_opts->common);
if (ret)
goto err_run;
ret = usb_add_function(c, f_msg_multi);
if (ret)
goto err_run;
return 0;
err_run:
usb_put_function(f_msg_multi);
err_fsg:
usb_remove_function(c, f_acm_multi);
err_conf:
usb_put_function(f_acm_multi);
err_func_acm:
usb_remove_function(c, f_ecm);
err_func_ecm:
usb_put_function(f_ecm);
return ret;
}
@ -270,19 +324,67 @@ static __ref int cdc_config_register(struct usb_composite_dev *cdev)
static int __ref multi_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
#ifdef CONFIG_USB_G_MULTI_CDC
struct f_ecm_opts *ecm_opts;
#endif
#ifdef USB_ETH_RNDIS
struct f_rndis_opts *rndis_opts;
#endif
struct fsg_opts *fsg_opts;
struct fsg_config config;
int status;
if (!can_support_ecm(cdev->gadget)) {
dev_err(&gadget->dev, "controller '%s' not usable\n",
gadget->name);
gadget->name);
return -EINVAL;
}
/* set up network link layer */
the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
qmult);
if (IS_ERR(the_dev))
return PTR_ERR(the_dev);
#ifdef CONFIG_USB_G_MULTI_CDC
fi_ecm = usb_get_function_instance("ecm");
if (IS_ERR(fi_ecm))
return PTR_ERR(fi_ecm);
ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst);
gether_set_qmult(ecm_opts->net, qmult);
if (!gether_set_host_addr(ecm_opts->net, host_addr))
pr_info("using host ethernet address: %s", host_addr);
if (!gether_set_dev_addr(ecm_opts->net, dev_addr))
pr_info("using self ethernet address: %s", dev_addr);
#endif
#ifdef USB_ETH_RNDIS
fi_rndis = usb_get_function_instance("rndis");
if (IS_ERR(fi_rndis)) {
status = PTR_ERR(fi_rndis);
goto fail;
}
rndis_opts = container_of(fi_rndis, struct f_rndis_opts, func_inst);
gether_set_qmult(rndis_opts->net, qmult);
if (!gether_set_host_addr(rndis_opts->net, host_addr))
pr_info("using host ethernet address: %s", host_addr);
if (!gether_set_dev_addr(rndis_opts->net, dev_addr))
pr_info("using self ethernet address: %s", dev_addr);
#endif
#if (defined CONFIG_USB_G_MULTI_CDC && defined USB_ETH_RNDIS)
/*
* If both ecm and rndis are selected then:
* 1) rndis borrows the net interface from ecm
* 2) since the interface is shared it must not be bound
* twice - in ecm's _and_ rndis' binds, so do it here.
*/
gether_set_gadget(ecm_opts->net, cdev->gadget);
status = gether_register_netdev(ecm_opts->net);
if (status)
goto fail0;
rndis_borrow_net(fi_rndis, ecm_opts->net);
ecm_opts->bound = true;
#endif
/* set up serial link layer */
fi_acm = usb_get_function_instance("acm");
@ -292,49 +394,87 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
}
/* set up mass storage function */
{
void *retp;
retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data);
if (IS_ERR(retp)) {
status = PTR_ERR(retp);
goto fail1;
}
fi_msg = usb_get_function_instance("mass_storage");
if (IS_ERR(fi_msg)) {
status = PTR_ERR(fi_msg);
goto fail1;
}
fsg_config_from_params(&config, &fsg_mod_data, fsg_num_buffers);
fsg_opts = fsg_opts_from_func_inst(fi_msg);
fsg_opts->no_configfs = true;
status = fsg_common_set_num_buffers(fsg_opts->common, fsg_num_buffers);
if (status)
goto fail2;
status = fsg_common_set_nluns(fsg_opts->common, config.nluns);
if (status)
goto fail_set_nluns;
status = fsg_common_set_cdev(fsg_opts->common, cdev, config.can_stall);
if (status)
goto fail_set_cdev;
fsg_common_set_sysfs(fsg_opts->common, true);
status = fsg_common_create_luns(fsg_opts->common, &config);
if (status)
goto fail_set_cdev;
fsg_common_set_inquiry_string(fsg_opts->common, config.vendor_name,
config.product_name);
/* allocate string IDs */
status = usb_string_ids_tab(cdev, strings_dev);
if (unlikely(status < 0))
goto fail2;
goto fail_string_ids;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
/* register configurations */
status = rndis_config_register(cdev);
if (unlikely(status < 0))
goto fail2;
goto fail_string_ids;
status = cdc_config_register(cdev);
if (unlikely(status < 0))
goto fail2;
goto fail_string_ids;
usb_composite_overwrite_options(cdev, &coverwrite);
/* we're done */
dev_info(&gadget->dev, DRIVER_DESC "\n");
fsg_common_put(&fsg_common);
return 0;
/* error recovery */
fail_string_ids:
fsg_common_remove_luns(fsg_opts->common);
fail_set_cdev:
fsg_common_free_luns(fsg_opts->common);
fail_set_nluns:
fsg_common_free_buffers(fsg_opts->common);
fail2:
fsg_common_put(&fsg_common);
usb_put_function_instance(fi_msg);
fail1:
usb_put_function_instance(fi_acm);
fail0:
gether_cleanup(the_dev);
#ifdef USB_ETH_RNDIS
usb_put_function_instance(fi_rndis);
fail:
#endif
#ifdef CONFIG_USB_G_MULTI_CDC
usb_put_function_instance(fi_ecm);
#endif
return status;
}
static int __exit multi_unbind(struct usb_composite_dev *cdev)
{
#ifdef CONFIG_USB_G_MULTI_CDC
usb_put_function(f_msg_multi);
#endif
#ifdef USB_ETH_RNDIS
usb_put_function(f_msg_rndis);
#endif
usb_put_function_instance(fi_msg);
#ifdef CONFIG_USB_G_MULTI_CDC
usb_put_function(f_acm_multi);
#endif
@ -342,7 +482,14 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_acm_rndis);
#endif
usb_put_function_instance(fi_acm);
gether_cleanup(the_dev);
#ifdef USB_ETH_RNDIS
usb_put_function(f_rndis);
usb_put_function_instance(fi_rndis);
#endif
#ifdef CONFIG_USB_G_MULTI_CDC
usb_put_function(f_ecm);
usb_put_function_instance(fi_ecm);
#endif
return 0;
}

4
drivers/usb/gadget/mv_u3d_core.c
View file

@ -310,6 +310,7 @@ static struct mv_u3d_trb *mv_u3d_build_trb_one(struct mv_u3d_req *req,
*/
trb_hw = dma_pool_alloc(u3d->trb_pool, GFP_ATOMIC, dma);
if (!trb_hw) {
kfree(trb);
dev_err(u3d->dev,
"%s, dma_pool_alloc fail\n", __func__);
return NULL;
@ -454,6 +455,7 @@ static int mv_u3d_req_to_trb(struct mv_u3d_req *req)
trb_hw = kcalloc(trb_num, sizeof(*trb_hw), GFP_ATOMIC);
if (!trb_hw) {
kfree(trb);
dev_err(u3d->dev,
"%s, trb_hw alloc fail\n", __func__);
return -ENOMEM;
@ -1936,7 +1938,7 @@ static int mv_u3d_probe(struct platform_device *dev)
}
u3d->irq = r->start;
if (request_irq(u3d->irq, mv_u3d_irq,
IRQF_DISABLED | IRQF_SHARED, driver_name, u3d)) {
IRQF_SHARED, driver_name, u3d)) {
u3d->irq = 0;
dev_err(&dev->dev, "Request irq %d for u3d failed\n",
u3d->irq);

5
drivers/usb/gadget/net2280.c
View file

@ -129,7 +129,7 @@ static char *type_string (u8 bmAttributes)
case USB_ENDPOINT_XFER_BULK: return "bulk";
case USB_ENDPOINT_XFER_ISOC: return "iso";
case USB_ENDPOINT_XFER_INT: return "intr";
};
}
return "control";
}
#endif
@ -1630,7 +1630,7 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr,
val = "intr"; break;
default:
val = "iso"; break;
}; val; }),
} val; }),
usb_endpoint_maxp (d) & 0x1fff,
ep->dma ? "dma" : "pio", ep->fifo_size
);
@ -2680,7 +2680,6 @@ static void net2280_remove (struct pci_dev *pdev)
if (dev->enabled)
pci_disable_device (pdev);
device_remove_file (&pdev->dev, &dev_attr_registers);
pci_set_drvdata (pdev, NULL);
INFO (dev, "unbind\n");
}

1
drivers/usb/gadget/pch_udc.c
View file

@ -3080,7 +3080,6 @@ static void pch_udc_remove(struct pci_dev *pdev)
if (dev->active)
pci_disable_device(pdev);
kfree(dev);
pci_set_drvdata(pdev, NULL);
}
#ifdef CONFIG_PM

2
drivers/usb/gadget/rndis.c
View file

@ -1068,7 +1068,7 @@ static int rndis_proc_show(struct seq_file *m, void *v)
s = "RNDIS_INITIALIZED"; break;
case RNDIS_DATA_INITIALIZED:
s = "RNDIS_DATA_INITIALIZED"; break;
}; s; }),
} s; }),
param->medium,
(param->media_state) ? 0 : param->speed*100,
(param->media_state) ? "disconnected" : "connected",

167
drivers/usb/gadget/s3c-hsotg.c
View file

@ -83,9 +83,12 @@ struct s3c_hsotg_req;
* @dir_in: Set to true if this endpoint is of the IN direction, which
* means that it is sending data to the Host.
* @index: The index for the endpoint registers.
* @mc: Multi Count - number of transactions per microframe
* @interval - Interval for periodic endpoints
* @name: The name array passed to the USB core.
* @halted: Set if the endpoint has been halted.
* @periodic: Set if this is a periodic ep, such as Interrupt
* @isochronous: Set if this is a isochronous ep
* @sent_zlp: Set if we've sent a zero-length packet.
* @total_data: The total number of data bytes done.
* @fifo_size: The size of the FIFO (for periodic IN endpoints)
@ -121,9 +124,12 @@ struct s3c_hsotg_ep {
unsigned char dir_in;
unsigned char index;
unsigned char mc;
unsigned char interval;
unsigned int halted:1;
unsigned int periodic:1;
unsigned int isochronous:1;
unsigned int sent_zlp:1;
char name[10];
@ -468,6 +474,7 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
void *data;
int can_write;
int pkt_round;
int max_transfer;
to_write -= (buf_pos - hs_ep->last_load);
@ -535,8 +542,10 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
can_write *= 4; /* fifo size is in 32bit quantities. */
}
dev_dbg(hsotg->dev, "%s: GNPTXSTS=%08x, can=%d, to=%d, mps %d\n",
__func__, gnptxsts, can_write, to_write, hs_ep->ep.maxpacket);
max_transfer = hs_ep->ep.maxpacket * hs_ep->mc;
dev_dbg(hsotg->dev, "%s: GNPTXSTS=%08x, can=%d, to=%d, max_transfer %d\n",
__func__, gnptxsts, can_write, to_write, max_transfer);
/*
* limit to 512 bytes of data, it seems at least on the non-periodic
@ -551,19 +560,21 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
* the transfer to return that it did not run out of fifo space
* doing it.
*/
if (to_write > hs_ep->ep.maxpacket) {
to_write = hs_ep->ep.maxpacket;
if (to_write > max_transfer) {
to_write = max_transfer;
s3c_hsotg_en_gsint(hsotg,
periodic ? GINTSTS_PTxFEmp :
GINTSTS_NPTxFEmp);
/* it's needed only when we do not use dedicated fifos */
if (!hsotg->dedicated_fifos)
s3c_hsotg_en_gsint(hsotg,
periodic ? GINTSTS_PTxFEmp :
GINTSTS_NPTxFEmp);
}
/* see if we can write data */
if (to_write > can_write) {
to_write = can_write;
pkt_round = to_write % hs_ep->ep.maxpacket;
pkt_round = to_write % max_transfer;
/*
* Round the write down to an
@ -581,9 +592,11 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
* is more room left.
*/
s3c_hsotg_en_gsint(hsotg,
periodic ? GINTSTS_PTxFEmp :
GINTSTS_NPTxFEmp);
/* it's needed only when we do not use dedicated fifos */
if (!hsotg->dedicated_fifos)
s3c_hsotg_en_gsint(hsotg,
periodic ? GINTSTS_PTxFEmp :
GINTSTS_NPTxFEmp);
}
dev_dbg(hsotg->dev, "write %d/%d, can_write %d, done %d\n",
@ -727,8 +740,16 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg,
else
packets = 1; /* send one packet if length is zero. */
if (hs_ep->isochronous && length > (hs_ep->mc * hs_ep->ep.maxpacket)) {
dev_err(hsotg->dev, "req length > maxpacket*mc\n");
return;
}
if (dir_in && index != 0)
epsize = DxEPTSIZ_MC(1);
if (hs_ep->isochronous)
epsize = DxEPTSIZ_MC(packets);
else
epsize = DxEPTSIZ_MC(1);
else
epsize = 0;
@ -820,6 +841,9 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg,
dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n",
__func__, readl(hsotg->regs + epctrl_reg));
/* enable ep interrupts */
s3c_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 1);
}
/**
@ -1091,6 +1115,7 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
bool set = (ctrl->bRequest == USB_REQ_SET_FEATURE);
struct s3c_hsotg_ep *ep;
int ret;
bool halted;
dev_dbg(hsotg->dev, "%s: %s_FEATURE\n",
__func__, set ? "SET" : "CLEAR");
@ -1105,6 +1130,8 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
switch (le16_to_cpu(ctrl->wValue)) {
case USB_ENDPOINT_HALT:
halted = ep->halted;
s3c_hsotg_ep_sethalt(&ep->ep, set);
ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0);
@ -1114,7 +1141,12 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
return ret;
}
if (!set) {
/*
* we have to complete all requests for ep if it was
* halted, and the halt was cleared by CLEAR_FEATURE
*/
if (!set && halted) {
/*
* If we have request in progress,
* then complete it
@ -1147,6 +1179,8 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
return 1;
}
static void s3c_hsotg_enqueue_setup(struct s3c_hsotg *hsotg);
/**
* s3c_hsotg_process_control - process a control request
* @hsotg: The device state
@ -1246,11 +1280,15 @@ static void s3c_hsotg_process_control(struct s3c_hsotg *hsotg,
* don't believe we need to anything more to get the EP
* to reply with a STALL packet
*/
/*
* complete won't be called, so we enqueue
* setup request here
*/
s3c_hsotg_enqueue_setup(hsotg);
}
}
static void s3c_hsotg_enqueue_setup(struct s3c_hsotg *hsotg);
/**
* s3c_hsotg_complete_setup - completion of a setup transfer
* @ep: The endpoint the request was on.
@ -1698,6 +1736,7 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg,
struct s3c_hsotg_ep *hs_ep = &hsotg->eps[ep];
void __iomem *regs = hsotg->regs;
u32 mpsval;
u32 mcval;
u32 reg;
if (ep == 0) {
@ -1705,15 +1744,19 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg,
mpsval = s3c_hsotg_ep0_mps(mps);
if (mpsval > 3)
goto bad_mps;
hs_ep->ep.maxpacket = mps;
hs_ep->mc = 1;
} else {
if (mps >= DxEPCTL_MPS_LIMIT+1)
mpsval = mps & DxEPCTL_MPS_MASK;
if (mpsval > 1024)
goto bad_mps;
mpsval = mps;
mcval = ((mps >> 11) & 0x3) + 1;
hs_ep->mc = mcval;
if (mcval > 3)
goto bad_mps;
hs_ep->ep.maxpacket = mpsval;
}
hs_ep->ep.maxpacket = mps;
/*
* update both the in and out endpoint controldir_ registers, even
* if one of the directions may not be in use.
@ -1782,8 +1825,16 @@ static int s3c_hsotg_trytx(struct s3c_hsotg *hsotg,
{
struct s3c_hsotg_req *hs_req = hs_ep->req;
if (!hs_ep->dir_in || !hs_req)
if (!hs_ep->dir_in || !hs_req) {
/**
* if request is not enqueued, we disable interrupts
* for endpoints, excepting ep0
*/
if (hs_ep->index != 0)
s3c_hsotg_ctrl_epint(hsotg, hs_ep->index,
hs_ep->dir_in, 0);
return 0;
}
if (hs_req->req.actual < hs_req->req.length) {
dev_dbg(hsotg->dev, "trying to write more for ep%d\n",
@ -1887,8 +1938,10 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx,
u32 epctl_reg = dir_in ? DIEPCTL(idx) : DOEPCTL(idx);
u32 epsiz_reg = dir_in ? DIEPTSIZ(idx) : DOEPTSIZ(idx);
u32 ints;
u32 ctrl;
ints = readl(hsotg->regs + epint_reg);
ctrl = readl(hsotg->regs + epctl_reg);
/* Clear endpoint interrupts */
writel(ints, hsotg->regs + epint_reg);
@ -1897,6 +1950,14 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx,
__func__, idx, dir_in ? "in" : "out", ints);
if (ints & DxEPINT_XferCompl) {
if (hs_ep->isochronous && hs_ep->interval == 1) {
if (ctrl & DxEPCTL_EOFrNum)
ctrl |= DxEPCTL_SetEvenFr;
else
ctrl |= DxEPCTL_SetOddFr;
writel(ctrl, hsotg->regs + epctl_reg);
}
dev_dbg(hsotg->dev,
"%s: XferCompl: DxEPCTL=0x%08x, DxEPTSIZ=%08x\n",
__func__, readl(hsotg->regs + epctl_reg),
@ -1963,7 +2024,7 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx,
if (ints & DxEPINT_Back2BackSetup)
dev_dbg(hsotg->dev, "%s: B2BSetup/INEPNakEff\n", __func__);
if (dir_in) {
if (dir_in && !hs_ep->isochronous) {
/* not sure if this is important, but we'll clear it anyway */
if (ints & DIEPMSK_INTknTXFEmpMsk) {
dev_dbg(hsotg->dev, "%s: ep%d: INTknTXFEmpMsk\n",
@ -2092,12 +2153,14 @@ static void kill_all_requests(struct s3c_hsotg *hsotg,
}
#define call_gadget(_hs, _entry) \
do { \
if ((_hs)->gadget.speed != USB_SPEED_UNKNOWN && \
(_hs)->driver && (_hs)->driver->_entry) { \
spin_unlock(&_hs->lock); \
(_hs)->driver->_entry(&(_hs)->gadget); \
spin_lock(&_hs->lock); \
}
} \
} while (0)
/**
* s3c_hsotg_disconnect - disconnect service
@ -2241,15 +2304,19 @@ static void s3c_hsotg_core_init(struct s3c_hsotg *hsotg)
GAHBCFG_HBstLen_Incr4,
hsotg->regs + GAHBCFG);
else
writel(GAHBCFG_GlblIntrEn, hsotg->regs + GAHBCFG);
writel(((hsotg->dedicated_fifos) ? (GAHBCFG_NPTxFEmpLvl |
GAHBCFG_PTxFEmpLvl) : 0) |
GAHBCFG_GlblIntrEn,
hsotg->regs + GAHBCFG);
/*
* Enabling INTknTXFEmpMsk here seems to be a big mistake, we end
* up being flooded with interrupts if the host is polling the
* endpoint to try and read data.
* If INTknTXFEmpMsk is enabled, it's important to disable ep interrupts
* when we have no data to transfer. Otherwise we get being flooded by
* interrupts.
*/
writel(((hsotg->dedicated_fifos) ? DIEPMSK_TxFIFOEmpty : 0) |
writel(((hsotg->dedicated_fifos) ? DIEPMSK_TxFIFOEmpty |
DIEPMSK_INTknTXFEmpMsk : 0) |
DIEPMSK_EPDisbldMsk | DIEPMSK_XferComplMsk |
DIEPMSK_TimeOUTMsk | DIEPMSK_AHBErrMsk |
DIEPMSK_INTknEPMisMsk,
@ -2378,10 +2445,14 @@ irq_retry:
if (gintsts & (GINTSTS_OEPInt | GINTSTS_IEPInt)) {
u32 daint = readl(hsotg->regs + DAINT);
u32 daint_out = daint >> DAINT_OutEP_SHIFT;
u32 daint_in = daint & ~(daint_out << DAINT_OutEP_SHIFT);
u32 daintmsk = readl(hsotg->regs + DAINTMSK);
u32 daint_out, daint_in;
int ep;
daint &= daintmsk;
daint_out = daint >> DAINT_OutEP_SHIFT;
daint_in = daint & ~(daint_out << DAINT_OutEP_SHIFT);
dev_dbg(hsotg->dev, "%s: daint=%08x\n", __func__, daint);
for (ep = 0; ep < 15 && daint_out; ep++, daint_out >>= 1) {
@ -2577,16 +2648,25 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
epctrl |= DxEPCTL_SNAK;
/* update the endpoint state */
hs_ep->ep.maxpacket = mps;
s3c_hsotg_set_ep_maxpacket(hsotg, hs_ep->index, mps);
/* default, set to non-periodic */
hs_ep->isochronous = 0;
hs_ep->periodic = 0;
hs_ep->halted = 0;
hs_ep->interval = desc->bInterval;
if (hs_ep->interval > 1 && hs_ep->mc > 1)
dev_err(hsotg->dev, "MC > 1 when interval is not 1\n");
switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
case USB_ENDPOINT_XFER_ISOC:
dev_err(hsotg->dev, "no current ISOC support\n");
ret = -EINVAL;
goto out;
epctrl |= DxEPCTL_EPType_Iso;
epctrl |= DxEPCTL_SetEvenFr;
hs_ep->isochronous = 1;
if (dir_in)
hs_ep->periodic = 1;
break;
case USB_ENDPOINT_XFER_BULK:
epctrl |= DxEPCTL_EPType_Bulk;
@ -2634,7 +2714,6 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
/* enable the endpoint interrupt */
s3c_hsotg_ctrl_epint(hsotg, index, dir_in, 1);
out:
spin_unlock_irqrestore(&hsotg->lock, flags);
return ret;
}
@ -2776,6 +2855,8 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
writel(epctl, hs->regs + epreg);
hs_ep->halted = value;
return 0;
}
@ -2903,7 +2984,7 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget,
int ret;
if (!hsotg) {
printk(KERN_ERR "%s: called with no device\n", __func__);
pr_err("%s: called with no device\n", __func__);
return -ENODEV;
}
@ -3066,7 +3147,7 @@ static void s3c_hsotg_initep(struct s3c_hsotg *hsotg,
hs_ep->parent = hsotg;
hs_ep->ep.name = hs_ep->name;
hs_ep->ep.maxpacket = epnum ? 512 : EP0_MPS_LIMIT;
hs_ep->ep.maxpacket = epnum ? 1024 : EP0_MPS_LIMIT;
hs_ep->ep.ops = &s3c_hsotg_ep_ops;
/*
@ -3200,7 +3281,7 @@ static int state_show(struct seq_file *seq, void *v)
readl(regs + GNPTXSTS),
readl(regs + GRXSTSR));
seq_printf(seq, "\nEndpoint status:\n");
seq_puts(seq, "\nEndpoint status:\n");
for (idx = 0; idx < 15; idx++) {
u32 in, out;
@ -3217,7 +3298,7 @@ static int state_show(struct seq_file *seq, void *v)
seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x",
in, out);
seq_printf(seq, "\n");
seq_puts(seq, "\n");
}
return 0;
@ -3251,7 +3332,7 @@ static int fifo_show(struct seq_file *seq, void *v)
u32 val;
int idx;
seq_printf(seq, "Non-periodic FIFOs:\n");
seq_puts(seq, "Non-periodic FIFOs:\n");
seq_printf(seq, "RXFIFO: Size %d\n", readl(regs + GRXFSIZ));
val = readl(regs + GNPTXFSIZ);
@ -3259,7 +3340,7 @@ static int fifo_show(struct seq_file *seq, void *v)
val >> GNPTXFSIZ_NPTxFDep_SHIFT,
val & GNPTXFSIZ_NPTxFStAddr_MASK);
seq_printf(seq, "\nPeriodic TXFIFOs:\n");
seq_puts(seq, "\nPeriodic TXFIFOs:\n");
for (idx = 1; idx <= 15; idx++) {
val = readl(regs + DPTXFSIZn(idx));
@ -3330,7 +3411,7 @@ static int ep_show(struct seq_file *seq, void *v)
readl(regs + DIEPTSIZ(index)),
readl(regs + DOEPTSIZ(index)));
seq_printf(seq, "\n");
seq_puts(seq, "\n");
seq_printf(seq, "mps %d\n", ep->ep.maxpacket);
seq_printf(seq, "total_data=%ld\n", ep->total_data);
@ -3341,7 +3422,7 @@ static int ep_show(struct seq_file *seq, void *v)
list_for_each_entry(req, &ep->queue, queue) {
if (--show_limit < 0) {
seq_printf(seq, "not showing more requests...\n");
seq_puts(seq, "not showing more requests...\n");
break;
}

430
drivers/usb/gadget/storage_common.c
View file

@ -23,242 +23,17 @@
* The valid range of num_buffers is: num >= 2 && num <= 4.
*/
#include <linux/module.h>
#include <linux/blkdev.h>
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/usb/composite.h>
#include <linux/usb/storage.h>
#include <scsi/scsi.h>
#include <asm/unaligned.h>
/*
* Thanks to NetChip Technologies for donating this product ID.
*
* DO NOT REUSE THESE IDs with any other driver!! Ever!!
* Instead: allocate your own, using normal USB-IF procedures.
*/
#define FSG_VENDOR_ID 0x0525 /* NetChip */
#define FSG_PRODUCT_ID 0xa4a5 /* Linux-USB File-backed Storage Gadget */
/*-------------------------------------------------------------------------*/
#ifndef DEBUG
#undef VERBOSE_DEBUG
#undef DUMP_MSGS
#endif /* !DEBUG */
#ifdef VERBOSE_DEBUG
#define VLDBG LDBG
#else
#define VLDBG(lun, fmt, args...) do { } while (0)
#endif /* VERBOSE_DEBUG */
#define LDBG(lun, fmt, args...) dev_dbg (&(lun)->dev, fmt, ## args)
#define LERROR(lun, fmt, args...) dev_err (&(lun)->dev, fmt, ## args)
#define LWARN(lun, fmt, args...) dev_warn(&(lun)->dev, fmt, ## args)
#define LINFO(lun, fmt, args...) dev_info(&(lun)->dev, fmt, ## args)
#ifdef DUMP_MSGS
# define dump_msg(fsg, /* const char * */ label, \
/* const u8 * */ buf, /* unsigned */ length) do { \
if (length < 512) { \
DBG(fsg, "%s, length %u:\n", label, length); \
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, \
16, 1, buf, length, 0); \
} \
} while (0)
# define dump_cdb(fsg) do { } while (0)
#else
# define dump_msg(fsg, /* const char * */ label, \
/* const u8 * */ buf, /* unsigned */ length) do { } while (0)
# ifdef VERBOSE_DEBUG
# define dump_cdb(fsg) \
print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE, \
16, 1, (fsg)->cmnd, (fsg)->cmnd_size, 0) \
# else
# define dump_cdb(fsg) do { } while (0)
# endif /* VERBOSE_DEBUG */
#endif /* DUMP_MSGS */
/*-------------------------------------------------------------------------*/
/* Length of a SCSI Command Data Block */
#define MAX_COMMAND_SIZE 16
/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */
#define SS_NO_SENSE 0
#define SS_COMMUNICATION_FAILURE 0x040800
#define SS_INVALID_COMMAND 0x052000
#define SS_INVALID_FIELD_IN_CDB 0x052400
#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x052100
#define SS_LOGICAL_UNIT_NOT_SUPPORTED 0x052500
#define SS_MEDIUM_NOT_PRESENT 0x023a00
#define SS_MEDIUM_REMOVAL_PREVENTED 0x055302
#define SS_NOT_READY_TO_READY_TRANSITION 0x062800
#define SS_RESET_OCCURRED 0x062900
#define SS_SAVING_PARAMETERS_NOT_SUPPORTED 0x053900
#define SS_UNRECOVERED_READ_ERROR 0x031100
#define SS_WRITE_ERROR 0x030c02
#define SS_WRITE_PROTECTED 0x072700
#define SK(x) ((u8) ((x) >> 16)) /* Sense Key byte, etc. */
#define ASC(x) ((u8) ((x) >> 8))
#define ASCQ(x) ((u8) (x))
/*-------------------------------------------------------------------------*/
struct fsg_lun {
struct file *filp;
loff_t file_length;
loff_t num_sectors;
unsigned int initially_ro:1;
unsigned int ro:1;
unsigned int removable:1;
unsigned int cdrom:1;
unsigned int prevent_medium_removal:1;
unsigned int registered:1;
unsigned int info_valid:1;
unsigned int nofua:1;
u32 sense_data;
u32 sense_data_info;
u32 unit_attention_data;
unsigned int blkbits; /* Bits of logical block size of bound block device */
unsigned int blksize; /* logical block size of bound block device */
struct device dev;
};
static inline bool fsg_lun_is_open(struct fsg_lun *curlun)
{
return curlun->filp != NULL;
}
static inline struct fsg_lun *fsg_lun_from_dev(struct device *dev)
{
return container_of(dev, struct fsg_lun, dev);
}
/* Big enough to hold our biggest descriptor */
#define EP0_BUFSIZE 256
#define DELAYED_STATUS (EP0_BUFSIZE + 999) /* An impossibly large value */
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO);
MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers");
#else
/*
* Number of buffers we will use.
* 2 is usually enough for good buffering pipeline
*/
#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
/* check if fsg_num_buffers is within a valid range */
static inline int fsg_num_buffers_validate(void)
{
if (fsg_num_buffers >= 2 && fsg_num_buffers <= 4)
return 0;
pr_err("fsg_num_buffers %u is out of range (%d to %d)\n",
fsg_num_buffers, 2 ,4);
return -EINVAL;
}
/* Default size of buffer length. */
#define FSG_BUFLEN ((u32)16384)
/* Maximal number of LUNs supported in mass storage function */
#define FSG_MAX_LUNS 8
enum fsg_buffer_state {
BUF_STATE_EMPTY = 0,
BUF_STATE_FULL,
BUF_STATE_BUSY
};
struct fsg_buffhd {
void *buf;
enum fsg_buffer_state state;
struct fsg_buffhd *next;
/*
* The NetChip 2280 is faster, and handles some protocol faults
* better, if we don't submit any short bulk-out read requests.
* So we will record the intended request length here.
*/
unsigned int bulk_out_intended_length;
struct usb_request *inreq;
int inreq_busy;
struct usb_request *outreq;
int outreq_busy;
};
enum fsg_state {
/* This one isn't used anywhere */
FSG_STATE_COMMAND_PHASE = -10,
FSG_STATE_DATA_PHASE,
FSG_STATE_STATUS_PHASE,
FSG_STATE_IDLE = 0,
FSG_STATE_ABORT_BULK_OUT,
FSG_STATE_RESET,
FSG_STATE_INTERFACE_CHANGE,
FSG_STATE_CONFIG_CHANGE,
FSG_STATE_DISCONNECT,
FSG_STATE_EXIT,
FSG_STATE_TERMINATED
};
enum data_direction {
DATA_DIR_UNKNOWN = 0,
DATA_DIR_FROM_HOST,
DATA_DIR_TO_HOST,
DATA_DIR_NONE
};
/*-------------------------------------------------------------------------*/
static inline u32 get_unaligned_be24(u8 *buf)
{
return 0xffffff & (u32) get_unaligned_be32(buf - 1);
}
/*-------------------------------------------------------------------------*/
enum {
FSG_STRING_INTERFACE
};
#include "storage_common.h"
/* There is only one interface. */
static struct usb_interface_descriptor
fsg_intf_desc = {
struct usb_interface_descriptor fsg_intf_desc = {
.bLength = sizeof fsg_intf_desc,
.bDescriptorType = USB_DT_INTERFACE,
@ -268,14 +43,14 @@ fsg_intf_desc = {
.bInterfaceProtocol = USB_PR_BULK, /* Adjusted during fsg_bind() */
.iInterface = FSG_STRING_INTERFACE,
};
EXPORT_SYMBOL(fsg_intf_desc);
/*
* Three full-speed endpoint descriptors: bulk-in, bulk-out, and
* interrupt-in.
*/
static struct usb_endpoint_descriptor
fsg_fs_bulk_in_desc = {
struct usb_endpoint_descriptor fsg_fs_bulk_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@ -283,9 +58,9 @@ fsg_fs_bulk_in_desc = {
.bmAttributes = USB_ENDPOINT_XFER_BULK,
/* wMaxPacketSize set by autoconfiguration */
};
EXPORT_SYMBOL(fsg_fs_bulk_in_desc);
static struct usb_endpoint_descriptor
fsg_fs_bulk_out_desc = {
struct usb_endpoint_descriptor fsg_fs_bulk_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@ -293,13 +68,15 @@ fsg_fs_bulk_out_desc = {
.bmAttributes = USB_ENDPOINT_XFER_BULK,
/* wMaxPacketSize set by autoconfiguration */
};
EXPORT_SYMBOL(fsg_fs_bulk_out_desc);
static struct usb_descriptor_header *fsg_fs_function[] = {
struct usb_descriptor_header *fsg_fs_function[] = {
(struct usb_descriptor_header *) &fsg_intf_desc,
(struct usb_descriptor_header *) &fsg_fs_bulk_in_desc,
(struct usb_descriptor_header *) &fsg_fs_bulk_out_desc,
NULL,
};
EXPORT_SYMBOL(fsg_fs_function);
/*
@ -310,8 +87,7 @@ static struct usb_descriptor_header *fsg_fs_function[] = {
* and a "device qualifier" ... plus more construction options
* for the configuration descriptor.
*/
static struct usb_endpoint_descriptor
fsg_hs_bulk_in_desc = {
struct usb_endpoint_descriptor fsg_hs_bulk_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@ -319,9 +95,9 @@ fsg_hs_bulk_in_desc = {
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(512),
};
EXPORT_SYMBOL(fsg_hs_bulk_in_desc);
static struct usb_endpoint_descriptor
fsg_hs_bulk_out_desc = {
struct usb_endpoint_descriptor fsg_hs_bulk_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@ -330,17 +106,18 @@ fsg_hs_bulk_out_desc = {
.wMaxPacketSize = cpu_to_le16(512),
.bInterval = 1, /* NAK every 1 uframe */
};
EXPORT_SYMBOL(fsg_hs_bulk_out_desc);
static struct usb_descriptor_header *fsg_hs_function[] = {
struct usb_descriptor_header *fsg_hs_function[] = {
(struct usb_descriptor_header *) &fsg_intf_desc,
(struct usb_descriptor_header *) &fsg_hs_bulk_in_desc,
(struct usb_descriptor_header *) &fsg_hs_bulk_out_desc,
NULL,
};
EXPORT_SYMBOL(fsg_hs_function);
static struct usb_endpoint_descriptor
fsg_ss_bulk_in_desc = {
struct usb_endpoint_descriptor fsg_ss_bulk_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@ -348,16 +125,17 @@ fsg_ss_bulk_in_desc = {
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(1024),
};
EXPORT_SYMBOL(fsg_ss_bulk_in_desc);
static struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = {
struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = {
.bLength = sizeof(fsg_ss_bulk_in_comp_desc),
.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
/*.bMaxBurst = DYNAMIC, */
};
EXPORT_SYMBOL(fsg_ss_bulk_in_comp_desc);
static struct usb_endpoint_descriptor
fsg_ss_bulk_out_desc = {
struct usb_endpoint_descriptor fsg_ss_bulk_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@ -365,15 +143,17 @@ fsg_ss_bulk_out_desc = {
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(1024),
};
EXPORT_SYMBOL(fsg_ss_bulk_out_desc);
static struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = {
struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = {
.bLength = sizeof(fsg_ss_bulk_in_comp_desc),
.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
/*.bMaxBurst = DYNAMIC, */
};
EXPORT_SYMBOL(fsg_ss_bulk_out_comp_desc);
static struct usb_descriptor_header *fsg_ss_function[] = {
struct usb_descriptor_header *fsg_ss_function[] = {
(struct usb_descriptor_header *) &fsg_intf_desc,
(struct usb_descriptor_header *) &fsg_ss_bulk_in_desc,
(struct usb_descriptor_header *) &fsg_ss_bulk_in_comp_desc,
@ -381,17 +161,7 @@ static struct usb_descriptor_header *fsg_ss_function[] = {
(struct usb_descriptor_header *) &fsg_ss_bulk_out_comp_desc,
NULL,
};
/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */
static struct usb_string fsg_strings[] = {
{FSG_STRING_INTERFACE, fsg_string_interface},
{}
};
static struct usb_gadget_strings fsg_stringtab = {
.language = 0x0409, /* en-us */
.strings = fsg_strings,
};
EXPORT_SYMBOL(fsg_ss_function);
/*-------------------------------------------------------------------------*/
@ -401,7 +171,7 @@ static struct usb_gadget_strings fsg_stringtab = {
* the caller must own fsg->filesem for writing.
*/
static void fsg_lun_close(struct fsg_lun *curlun)
void fsg_lun_close(struct fsg_lun *curlun)
{
if (curlun->filp) {
LDBG(curlun, "close backing file\n");
@ -409,9 +179,9 @@ static void fsg_lun_close(struct fsg_lun *curlun)
curlun->filp = NULL;
}
}
EXPORT_SYMBOL(fsg_lun_close);
static int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
{
int ro;
struct file *filp = NULL;
@ -508,6 +278,7 @@ out:
fput(filp);
return rc;
}
EXPORT_SYMBOL(fsg_lun_open);
/*-------------------------------------------------------------------------*/
@ -516,7 +287,7 @@ out:
* Sync the file data, don't bother with the metadata.
* This code was copied from fs/buffer.c:sys_fdatasync().
*/
static int fsg_lun_fsync_sub(struct fsg_lun *curlun)
int fsg_lun_fsync_sub(struct fsg_lun *curlun)
{
struct file *filp = curlun->filp;
@ -524,8 +295,9 @@ static int fsg_lun_fsync_sub(struct fsg_lun *curlun)
return 0;
return vfs_fsync(filp, 1);
}
EXPORT_SYMBOL(fsg_lun_fsync_sub);
static void store_cdrom_address(u8 *dest, int msf, u32 addr)
void store_cdrom_address(u8 *dest, int msf, u32 addr)
{
if (msf) {
/* Convert to Minutes-Seconds-Frames */
@ -542,34 +314,28 @@ static void store_cdrom_address(u8 *dest, int msf, u32 addr)
put_unaligned_be32(addr, dest);
}
}
EXPORT_SYMBOL(store_cdrom_address);
/*-------------------------------------------------------------------------*/
static ssize_t ro_show(struct device *dev, struct device_attribute *attr,
char *buf)
ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf)
{
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
return sprintf(buf, "%d\n", fsg_lun_is_open(curlun)
? curlun->ro
: curlun->initially_ro);
}
EXPORT_SYMBOL(fsg_show_ro);
static ssize_t nofua_show(struct device *dev, struct device_attribute *attr,
char *buf)
ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf)
{
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
return sprintf(buf, "%u\n", curlun->nofua);
}
EXPORT_SYMBOL(fsg_show_nofua);
static ssize_t file_show(struct device *dev, struct device_attribute *attr,
char *buf)
ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
char *buf)
{
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
struct rw_semaphore *filesem = dev_get_drvdata(dev);
char *p;
ssize_t rc;
@ -591,17 +357,44 @@ static ssize_t file_show(struct device *dev, struct device_attribute *attr,
up_read(filesem);
return rc;
}
EXPORT_SYMBOL(fsg_show_file);
ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf)
{
return sprintf(buf, "%u\n", curlun->cdrom);
}
EXPORT_SYMBOL(fsg_show_cdrom);
static ssize_t ro_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf)
{
return sprintf(buf, "%u\n", curlun->removable);
}
EXPORT_SYMBOL(fsg_show_removable);
/*
* The caller must hold fsg->filesem for reading when calling this function.
*/
static ssize_t _fsg_store_ro(struct fsg_lun *curlun, bool ro)
{
if (fsg_lun_is_open(curlun)) {
LDBG(curlun, "read-only status change prevented\n");
return -EBUSY;
}
curlun->ro = ro;
curlun->initially_ro = ro;
LDBG(curlun, "read-only status set to %d\n", curlun->ro);
return 0;
}
ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count)
{
ssize_t rc;
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
struct rw_semaphore *filesem = dev_get_drvdata(dev);
unsigned ro;
bool ro;
rc = kstrtouint(buf, 2, &ro);
rc = strtobool(buf, &ro);
if (rc)
return rc;
@ -610,27 +403,21 @@ static ssize_t ro_store(struct device *dev, struct device_attribute *attr,
* backing file is closed.
*/
down_read(filesem);
if (fsg_lun_is_open(curlun)) {
LDBG(curlun, "read-only status change prevented\n");
rc = -EBUSY;
} else {
curlun->ro = ro;
curlun->initially_ro = ro;
LDBG(curlun, "read-only status set to %d\n", curlun->ro);
rc = _fsg_store_ro(curlun, ro);
if (!rc)
rc = count;
}
up_read(filesem);
return rc;
}
EXPORT_SYMBOL(fsg_store_ro);
static ssize_t nofua_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count)
{
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
unsigned nofua;
bool nofua;
int ret;
ret = kstrtouint(buf, 2, &nofua);
ret = strtobool(buf, &nofua);
if (ret)
return ret;
@ -642,12 +429,11 @@ static ssize_t nofua_store(struct device *dev, struct device_attribute *attr,
return count;
}
EXPORT_SYMBOL(fsg_store_nofua);
static ssize_t file_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count)
{
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
struct rw_semaphore *filesem = dev_get_drvdata(dev);
int rc = 0;
if (curlun->prevent_medium_removal && fsg_lun_is_open(curlun)) {
@ -674,3 +460,45 @@ static ssize_t file_store(struct device *dev, struct device_attribute *attr,
up_write(filesem);
return (rc < 0 ? rc : count);
}
EXPORT_SYMBOL(fsg_store_file);
ssize_t fsg_store_cdrom(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count)
{
bool cdrom;
int ret;
ret = strtobool(buf, &cdrom);
if (ret)
return ret;
down_read(filesem);
ret = cdrom ? _fsg_store_ro(curlun, true) : 0;
if (!ret) {
curlun->cdrom = cdrom;
ret = count;
}
up_read(filesem);
return ret;
}
EXPORT_SYMBOL(fsg_store_cdrom);
ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf,
size_t count)
{
bool removable;
int ret;
ret = strtobool(buf, &removable);
if (ret)
return ret;
curlun->removable = removable;
return count;
}
EXPORT_SYMBOL(fsg_store_removable);
MODULE_LICENSE("GPL");

229
drivers/usb/gadget/storage_common.h Normal file
View file

@ -0,0 +1,229 @@
#ifndef USB_STORAGE_COMMON_H
#define USB_STORAGE_COMMON_H
#include <linux/device.h>
#include <linux/usb/storage.h>
#include <scsi/scsi.h>
#include <asm/unaligned.h>
#ifndef DEBUG
#undef VERBOSE_DEBUG
#undef DUMP_MSGS
#endif /* !DEBUG */
#ifdef VERBOSE_DEBUG
#define VLDBG LDBG
#else
#define VLDBG(lun, fmt, args...) do { } while (0)
#endif /* VERBOSE_DEBUG */
#define _LMSG(func, lun, fmt, args...) \
do { \
if ((lun)->name_pfx && *(lun)->name_pfx) \
func("%s/%s: " fmt, *(lun)->name_pfx, \
(lun)->name, ## args); \
else \
func("%s: " fmt, (lun)->name, ## args); \
} while (0)
#define LDBG(lun, fmt, args...) _LMSG(pr_debug, lun, fmt, ## args)
#define LERROR(lun, fmt, args...) _LMSG(pr_err, lun, fmt, ## args)
#define LWARN(lun, fmt, args...) _LMSG(pr_warn, lun, fmt, ## args)
#define LINFO(lun, fmt, args...) _LMSG(pr_info, lun, fmt, ## args)
#ifdef DUMP_MSGS
# define dump_msg(fsg, /* const char * */ label, \
/* const u8 * */ buf, /* unsigned */ length) \
do { \
if (length < 512) { \
DBG(fsg, "%s, length %u:\n", label, length); \
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, \
16, 1, buf, length, 0); \
} \
} while (0)
# define dump_cdb(fsg) do { } while (0)
#else
# define dump_msg(fsg, /* const char * */ label, \
/* const u8 * */ buf, /* unsigned */ length) do { } while (0)
# ifdef VERBOSE_DEBUG
# define dump_cdb(fsg) \
print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE, \
16, 1, (fsg)->cmnd, (fsg)->cmnd_size, 0) \
# else
# define dump_cdb(fsg) do { } while (0)
# endif /* VERBOSE_DEBUG */
#endif /* DUMP_MSGS */
/* Length of a SCSI Command Data Block */
#define MAX_COMMAND_SIZE 16
/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */
#define SS_NO_SENSE 0
#define SS_COMMUNICATION_FAILURE 0x040800
#define SS_INVALID_COMMAND 0x052000
#define SS_INVALID_FIELD_IN_CDB 0x052400
#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x052100
#define SS_LOGICAL_UNIT_NOT_SUPPORTED 0x052500
#define SS_MEDIUM_NOT_PRESENT 0x023a00
#define SS_MEDIUM_REMOVAL_PREVENTED 0x055302
#define SS_NOT_READY_TO_READY_TRANSITION 0x062800
#define SS_RESET_OCCURRED 0x062900
#define SS_SAVING_PARAMETERS_NOT_SUPPORTED 0x053900
#define SS_UNRECOVERED_READ_ERROR 0x031100
#define SS_WRITE_ERROR 0x030c02
#define SS_WRITE_PROTECTED 0x072700
#define SK(x) ((u8) ((x) >> 16)) /* Sense Key byte, etc. */
#define ASC(x) ((u8) ((x) >> 8))
#define ASCQ(x) ((u8) (x))
struct fsg_lun {
struct file *filp;
loff_t file_length;
loff_t num_sectors;
unsigned int initially_ro:1;
unsigned int ro:1;
unsigned int removable:1;
unsigned int cdrom:1;
unsigned int prevent_medium_removal:1;
unsigned int registered:1;
unsigned int info_valid:1;
unsigned int nofua:1;
u32 sense_data;
u32 sense_data_info;
u32 unit_attention_data;
unsigned int blkbits; /* Bits of logical block size
of bound block device */
unsigned int blksize; /* logical block size of bound block device */
struct device dev;
const char *name; /* "lun.name" */
const char **name_pfx; /* "function.name" */
};
static inline bool fsg_lun_is_open(struct fsg_lun *curlun)
{
return curlun->filp != NULL;
}
/* Big enough to hold our biggest descriptor */
#define EP0_BUFSIZE 256
#define DELAYED_STATUS (EP0_BUFSIZE + 999) /* An impossibly large value */
/* Default size of buffer length. */
#define FSG_BUFLEN ((u32)16384)
/* Maximal number of LUNs supported in mass storage function */
#define FSG_MAX_LUNS 8
enum fsg_buffer_state {
BUF_STATE_EMPTY = 0,
BUF_STATE_FULL,
BUF_STATE_BUSY
};
struct fsg_buffhd {
void *buf;
enum fsg_buffer_state state;
struct fsg_buffhd *next;
/*
* The NetChip 2280 is faster, and handles some protocol faults
* better, if we don't submit any short bulk-out read requests.
* So we will record the intended request length here.
*/
unsigned int bulk_out_intended_length;
struct usb_request *inreq;
int inreq_busy;
struct usb_request *outreq;
int outreq_busy;
};
enum fsg_state {
/* This one isn't used anywhere */
FSG_STATE_COMMAND_PHASE = -10,
FSG_STATE_DATA_PHASE,
FSG_STATE_STATUS_PHASE,
FSG_STATE_IDLE = 0,
FSG_STATE_ABORT_BULK_OUT,
FSG_STATE_RESET,
FSG_STATE_INTERFACE_CHANGE,
FSG_STATE_CONFIG_CHANGE,
FSG_STATE_DISCONNECT,
FSG_STATE_EXIT,
FSG_STATE_TERMINATED
};
enum data_direction {
DATA_DIR_UNKNOWN = 0,
DATA_DIR_FROM_HOST,
DATA_DIR_TO_HOST,
DATA_DIR_NONE
};
static inline u32 get_unaligned_be24(u8 *buf)
{
return 0xffffff & (u32) get_unaligned_be32(buf - 1);
}
static inline struct fsg_lun *fsg_lun_from_dev(struct device *dev)
{
return container_of(dev, struct fsg_lun, dev);
}
enum {
FSG_STRING_INTERFACE
};
extern struct usb_interface_descriptor fsg_intf_desc;
extern struct usb_endpoint_descriptor fsg_fs_bulk_in_desc;
extern struct usb_endpoint_descriptor fsg_fs_bulk_out_desc;
extern struct usb_descriptor_header *fsg_fs_function[];
extern struct usb_endpoint_descriptor fsg_hs_bulk_in_desc;
extern struct usb_endpoint_descriptor fsg_hs_bulk_out_desc;
extern struct usb_descriptor_header *fsg_hs_function[];
extern struct usb_endpoint_descriptor fsg_ss_bulk_in_desc;
extern struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc;
extern struct usb_endpoint_descriptor fsg_ss_bulk_out_desc;
extern struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc;
extern struct usb_descriptor_header *fsg_ss_function[];
void fsg_lun_close(struct fsg_lun *curlun);
int fsg_lun_open(struct fsg_lun *curlun, const char *filename);
int fsg_lun_fsync_sub(struct fsg_lun *curlun);
void store_cdrom_address(u8 *dest, int msf, u32 addr);
ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf);
ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf);
ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
char *buf);
ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf);
ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf);
ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count);
ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count);
ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count);
ssize_t fsg_store_cdrom(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count);
ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf,
size_t count);
#endif /* USB_STORAGE_COMMON_H */

4
drivers/usb/gadget/tcm_usb_gadget.c
View file

@ -472,7 +472,7 @@ static int usbg_bot_setup(struct usb_function *f,
bot_enqueue_cmd_cbw(fu);
return 0;
break;
};
}
return -ENOTSUPP;
}
@ -617,7 +617,7 @@ static void uasp_status_data_cmpl(struct usb_ep *ep, struct usb_request *req)
default:
BUG();
};
}
return;
cleanup:

3
drivers/usb/gadget/udc-core.c
View file

@ -356,7 +356,8 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri
kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE);
return 0;
err1:
dev_err(&udc->dev, "failed to start %s: %d\n",
if (ret != -EISNAM)
dev_err(&udc->dev, "failed to start %s: %d\n",
udc->driver->function, ret);
udc->driver = NULL;
udc->dev.driver = NULL;

25
drivers/usb/gadget/zero.c
View file

@ -95,6 +95,18 @@ unsigned autoresume = DEFAULT_AUTORESUME;
module_param(autoresume, uint, S_IRUGO);
MODULE_PARM_DESC(autoresume, "zero, or seconds before remote wakeup");
/* Maximum Autoresume time */
unsigned max_autoresume;
module_param(max_autoresume, uint, S_IRUGO);
MODULE_PARM_DESC(max_autoresume, "maximum seconds before remote wakeup");
/* Interval between two remote wakeups */
unsigned autoresume_interval_ms;
module_param(autoresume_interval_ms, uint, S_IRUGO);
MODULE_PARM_DESC(autoresume_interval_ms,
"milliseconds to increase successive wakeup delays");
static unsigned autoresume_step_ms;
/*-------------------------------------------------------------------------*/
static struct usb_device_descriptor device_desc = {
@ -183,8 +195,16 @@ static void zero_suspend(struct usb_composite_dev *cdev)
return;
if (autoresume) {
mod_timer(&autoresume_timer, jiffies + (HZ * autoresume));
DBG(cdev, "suspend, wakeup in %d seconds\n", autoresume);
if (max_autoresume &&
(autoresume_step_ms > max_autoresume * 1000))
autoresume_step_ms = autoresume * 1000;
mod_timer(&autoresume_timer, jiffies +
msecs_to_jiffies(autoresume_step_ms));
DBG(cdev, "suspend, wakeup in %d milliseconds\n",
autoresume_step_ms);
autoresume_step_ms += autoresume_interval_ms;
} else
DBG(cdev, "%s\n", __func__);
}
@ -316,6 +336,7 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
if (autoresume) {
sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
loopback_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
autoresume_step_ms = autoresume * 1000;
}
/* support OTG systems */

59
drivers/usb/host/Kconfig
View file

@ -54,7 +54,7 @@ config USB_EHCI_HCD
config USB_EHCI_ROOT_HUB_TT
bool "Root Hub Transaction Translators"
depends on USB_EHCI_HCD || USB_CHIPIDEA_HOST
depends on USB_EHCI_HCD
---help---
Some EHCI chips have vendor-specific extensions to integrate
transaction translators, so that no OHCI or UHCI companion
@ -66,7 +66,7 @@ config USB_EHCI_ROOT_HUB_TT
config USB_EHCI_TT_NEWSCHED
bool "Improved Transaction Translator scheduling"
depends on USB_EHCI_HCD || USB_CHIPIDEA_HOST
depends on USB_EHCI_HCD
default y
---help---
This changes the periodic scheduling code to fill more of the low
@ -203,12 +203,11 @@ config USB_EHCI_SH
Enables support for the on-chip EHCI controller on the SuperH.
If you use the PCI EHCI controller, this option is not necessary.
config USB_EHCI_S5P
config USB_EHCI_EXYNOS
tristate "EHCI support for Samsung S5P/EXYNOS SoC Series"
depends on PLAT_S5P || ARCH_EXYNOS
help
Enable support for the Samsung S5Pxxxx and Exynos3/4/5 SOC's
on-chip EHCI controller.
Enable support for the Samsung Exynos SOC's on-chip EHCI controller.
config USB_EHCI_MV
bool "EHCI support for Marvell PXA/MMP USB controller"
@ -224,7 +223,7 @@ config USB_EHCI_MV
on-chip EHCI USB controller" for those.
config USB_W90X900_EHCI
bool "W90X900(W90P910) EHCI support"
tristate "W90X900(W90P910) EHCI support"
depends on ARCH_W90X900
---help---
Enables support for the W90X900 USB controller
@ -367,14 +366,54 @@ config USB_OHCI_HCD
if USB_OHCI_HCD
config USB_OHCI_HCD_OMAP1
bool "OHCI support for OMAP1/2 chips"
tristate "OHCI support for OMAP1/2 chips"
depends on ARCH_OMAP1
default y
---help---
Enables support for the OHCI controller on OMAP1/2 chips.
config USB_OHCI_HCD_SPEAR
tristate "Support for ST SPEAr on-chip OHCI USB controller"
depends on USB_OHCI_HCD && PLAT_SPEAR
default y
---help---
Enables support for the on-chip OHCI controller on
ST SPEAr chips.
config USB_OHCI_HCD_S3C2410
tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series"
depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX)
default y
---help---
Enables support for the on-chip OHCI controller on
S3C24xx/S3C64xx chips.
config USB_OHCI_HCD_LPC32XX
tristate "Support for LPC on-chip OHCI USB controller"
depends on USB_OHCI_HCD && ARCH_LPC32XX
default y
---help---
Enables support for the on-chip OHCI controller on
NXP chips.
config USB_OHCI_HCD_PXA27X
tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller"
depends on USB_OHCI_HCD && (PXA27x || PXA3xx)
default y
---help---
Enables support for the on-chip OHCI controller on
PXA27x/PXA3xx chips.
config USB_OHCI_HCD_AT91
tristate "Support for Atmel on-chip OHCI USB controller"
depends on USB_OHCI_HCD && ARCH_AT91
default y
---help---
Enables support for the on-chip OHCI controller on
Atmel chips.
config USB_OHCI_HCD_OMAP3
bool "OHCI support for OMAP3 and later chips"
tristate "OHCI support for OMAP3 and later chips"
depends on (ARCH_OMAP3 || ARCH_OMAP4)
default y
---help---
@ -454,8 +493,8 @@ config USB_OHCI_SH
If you use the PCI OHCI controller, this option is not necessary.
config USB_OHCI_EXYNOS
boolean "OHCI support for Samsung EXYNOS SoC Series"
depends on ARCH_EXYNOS
tristate "OHCI support for Samsung S5P/EXYNOS SoC Series"
depends on PLAT_S5P || ARCH_EXYNOS
help
Enable support for the Samsung Exynos SOC's on-chip OHCI controller.

11
drivers/usb/host/Makefile
View file

@ -34,10 +34,11 @@ obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o
obj-$(CONFIG_USB_EHCI_HCD_OMAP) += ehci-omap.o
obj-$(CONFIG_USB_EHCI_HCD_ORION) += ehci-orion.o
obj-$(CONFIG_USB_EHCI_HCD_SPEAR) += ehci-spear.o
obj-$(CONFIG_USB_EHCI_S5P) += ehci-s5p.o
obj-$(CONFIG_USB_EHCI_EXYNOS) += ehci-exynos.o
obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
obj-$(CONFIG_USB_EHCI_MSM) += ehci-msm.o
obj-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o
obj-$(CONFIG_USB_W90X900_EHCI) += ehci-w90x900.o
obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o
@ -46,6 +47,14 @@ obj-$(CONFIG_USB_ISP1362_HCD) += isp1362-hcd.o
obj-$(CONFIG_USB_OHCI_HCD) += ohci-hcd.o
obj-$(CONFIG_USB_OHCI_HCD_PCI) += ohci-pci.o
obj-$(CONFIG_USB_OHCI_HCD_PLATFORM) += ohci-platform.o
obj-$(CONFIG_USB_OHCI_EXYNOS) += ohci-exynos.o
obj-$(CONFIG_USB_OHCI_HCD_OMAP1) += ohci-omap.o
obj-$(CONFIG_USB_OHCI_HCD_OMAP3) += ohci-omap3.o
obj-$(CONFIG_USB_OHCI_HCD_SPEAR) += ohci-spear.o
obj-$(CONFIG_USB_OHCI_HCD_AT91) += ohci-at91.o
obj-$(CONFIG_USB_OHCI_HCD_S3C2410) += ohci-s3c2410.o
obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o
obj-$(CONFIG_USB_OHCI_HCD_PXA27X) += ohci-pxa27x.o
obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o
obj-$(CONFIG_USB_FHCI_HCD) += fhci.o

16
drivers/usb/host/ehci-atmel.c
View file

@ -30,13 +30,17 @@ static const char hcd_name[] = "ehci-atmel";
static struct hc_driver __read_mostly ehci_atmel_hc_driver;
/* interface and function clocks */
static struct clk *iclk, *fclk;
static struct clk *iclk, *fclk, *uclk;
static int clocked;
/*-------------------------------------------------------------------------*/
static void atmel_start_clock(void)
{
if (IS_ENABLED(CONFIG_COMMON_CLK)) {
clk_set_rate(uclk, 48000000);
clk_prepare_enable(uclk);
}
clk_prepare_enable(iclk);
clk_prepare_enable(fclk);
clocked = 1;
@ -46,6 +50,8 @@ static void atmel_stop_clock(void)
{
clk_disable_unprepare(fclk);
clk_disable_unprepare(iclk);
if (IS_ENABLED(CONFIG_COMMON_CLK))
clk_disable_unprepare(uclk);
clocked = 0;
}
@ -130,6 +136,14 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
retval = -ENOENT;
goto fail_request_resource;
}
if (IS_ENABLED(CONFIG_COMMON_CLK)) {
uclk = devm_clk_get(&pdev->dev, "usb_clk");
if (IS_ERR(uclk)) {
dev_err(&pdev->dev, "failed to get uclk\n");
retval = PTR_ERR(uclk);
goto fail_request_resource;
}
}
ehci = hcd_to_ehci(hcd);
/* registers start at offset 0x0 */

113
drivers/usb/host/ehci-dbg.c
View file

@ -334,6 +334,7 @@ static inline void remove_debug_files (struct ehci_hcd *bus) { }
/* troubleshooting help: expose state in debugfs */
static int debug_async_open(struct inode *, struct file *);
static int debug_bandwidth_open(struct inode *, struct file *);
static int debug_periodic_open(struct inode *, struct file *);
static int debug_registers_open(struct inode *, struct file *);
@ -347,6 +348,13 @@ static const struct file_operations debug_async_fops = {
.release = debug_close,
.llseek = default_llseek,
};
static const struct file_operations debug_bandwidth_fops = {
.owner = THIS_MODULE,
.open = debug_bandwidth_open,
.read = debug_output,
.release = debug_close,
.llseek = default_llseek,
};
static const struct file_operations debug_periodic_fops = {
.owner = THIS_MODULE,
.open = debug_periodic_open,
@ -379,7 +387,7 @@ struct debug_buffer {
case QH_LOW_SPEED: tmp = 'l'; break; \
case QH_HIGH_SPEED: tmp = 'h'; break; \
default: tmp = '?'; break; \
}; tmp; })
} tmp; })
static inline char token_mark(struct ehci_hcd *ehci, __hc32 token)
{
@ -525,6 +533,89 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf)
return strlen(buf->output_buf);
}
static ssize_t fill_bandwidth_buffer(struct debug_buffer *buf)
{
struct ehci_hcd *ehci;
struct ehci_tt *tt;
struct ehci_per_sched *ps;
unsigned temp, size;
char *next;
unsigned i;
u8 *bw;
u16 *bf;
u8 budget[EHCI_BANDWIDTH_SIZE];
ehci = hcd_to_ehci(bus_to_hcd(buf->bus));
next = buf->output_buf;
size = buf->alloc_size;
*next = 0;
spin_lock_irq(&ehci->lock);
/* Dump the HS bandwidth table */
temp = scnprintf(next, size,
"HS bandwidth allocation (us per microframe)\n");
size -= temp;
next += temp;
for (i = 0; i < EHCI_BANDWIDTH_SIZE; i += 8) {
bw = &ehci->bandwidth[i];
temp = scnprintf(next, size,
"%2u: %4u%4u%4u%4u%4u%4u%4u%4u\n",
i, bw[0], bw[1], bw[2], bw[3],
bw[4], bw[5], bw[6], bw[7]);
size -= temp;
next += temp;
}
/* Dump all the FS/LS tables */
list_for_each_entry(tt, &ehci->tt_list, tt_list) {
temp = scnprintf(next, size,
"\nTT %s port %d FS/LS bandwidth allocation (us per frame)\n",
dev_name(&tt->usb_tt->hub->dev),
tt->tt_port + !!tt->usb_tt->multi);
size -= temp;
next += temp;
bf = tt->bandwidth;
temp = scnprintf(next, size,
" %5u%5u%5u%5u%5u%5u%5u%5u\n",
bf[0], bf[1], bf[2], bf[3],
bf[4], bf[5], bf[6], bf[7]);
size -= temp;
next += temp;
temp = scnprintf(next, size,
"FS/LS budget (us per microframe)\n");
size -= temp;
next += temp;
compute_tt_budget(budget, tt);
for (i = 0; i < EHCI_BANDWIDTH_SIZE; i += 8) {
bw = &budget[i];
temp = scnprintf(next, size,
"%2u: %4u%4u%4u%4u%4u%4u%4u%4u\n",
i, bw[0], bw[1], bw[2], bw[3],
bw[4], bw[5], bw[6], bw[7]);
size -= temp;
next += temp;
}
list_for_each_entry(ps, &tt->ps_list, ps_list) {
temp = scnprintf(next, size,
"%s ep %02x: %4u @ %2u.%u+%u mask %04x\n",
dev_name(&ps->udev->dev),
ps->ep->desc.bEndpointAddress,
ps->tt_usecs,
ps->bw_phase, ps->phase_uf,
ps->bw_period, ps->cs_mask);
size -= temp;
next += temp;
}
}
spin_unlock_irq(&ehci->lock);
return next - buf->output_buf;
}
#define DBG_SCHED_LIMIT 64
static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
{
@ -571,7 +662,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
case Q_TYPE_QH:
hw = p.qh->hw;
temp = scnprintf (next, size, " qh%d-%04x/%p",
p.qh->period,
p.qh->ps.period,
hc32_to_cpup(ehci,
&hw->hw_info2)
/* uframe masks */
@ -618,7 +709,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
speed_char (scratch),
scratch & 0x007f,
(scratch >> 8) & 0x000f, type,
p.qh->usecs, p.qh->c_usecs,
p.qh->ps.usecs,
p.qh->ps.c_usecs,
temp,
0x7ff & (scratch >> 16));
@ -645,7 +737,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
case Q_TYPE_SITD:
temp = scnprintf (next, size,
" sitd%d-%04x/%p",
p.sitd->stream->interval,
p.sitd->stream->ps.period,
hc32_to_cpup(ehci, &p.sitd->hw_uframe)
& 0x0000ffff,
p.sitd);
@ -918,6 +1010,7 @@ static int debug_close(struct inode *inode, struct file *file)
return 0;
}
static int debug_async_open(struct inode *inode, struct file *file)
{
file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
@ -925,6 +1018,14 @@ static int debug_async_open(struct inode *inode, struct file *file)
return file->private_data ? 0 : -ENOMEM;
}
static int debug_bandwidth_open(struct inode *inode, struct file *file)
{
file->private_data = alloc_buffer(inode->i_private,
fill_bandwidth_buffer);
return file->private_data ? 0 : -ENOMEM;
}
static int debug_periodic_open(struct inode *inode, struct file *file)
{
struct debug_buffer *buf;
@ -957,6 +1058,10 @@ static inline void create_debug_files (struct ehci_hcd *ehci)
&debug_async_fops))
goto file_error;
if (!debugfs_create_file("bandwidth", S_IRUGO, ehci->debug_dir, bus,
&debug_bandwidth_fops))
goto file_error;
if (!debugfs_create_file("periodic", S_IRUGO, ehci->debug_dir, bus,
&debug_periodic_fops))
goto file_error;

164
drivers/usb/host/ehci-s5p.c → drivers/usb/host/ehci-exynos.c
View file

@ -1,5 +1,5 @@
/*
* SAMSUNG S5P USB HOST EHCI Controller
* SAMSUNG EXYNOS USB HOST EHCI Controller
*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Author: Jingoo Han <jg1.han@samsung.com>
@ -20,7 +20,6 @@
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/platform_data/usb-ehci-s5p.h>
#include <linux/usb/phy.h>
#include <linux/usb/samsung_usb_phy.h>
#include <linux/usb.h>
@ -29,7 +28,7 @@
#include "ehci.h"
#define DRIVER_DESC "EHCI s5p driver"
#define DRIVER_DESC "EHCI EXYNOS driver"
#define EHCI_INSNREG00(base) (base + 0x90)
#define EHCI_INSNREG00_ENA_INCR16 (0x1 << 25)
@ -40,21 +39,18 @@
(EHCI_INSNREG00_ENA_INCR16 | EHCI_INSNREG00_ENA_INCR8 | \
EHCI_INSNREG00_ENA_INCR4 | EHCI_INSNREG00_ENA_INCRX_ALIGN)
static const char hcd_name[] = "ehci-s5p";
static struct hc_driver __read_mostly s5p_ehci_hc_driver;
static const char hcd_name[] = "ehci-exynos";
static struct hc_driver __read_mostly exynos_ehci_hc_driver;
struct s5p_ehci_hcd {
struct exynos_ehci_hcd {
struct clk *clk;
struct usb_phy *phy;
struct usb_otg *otg;
struct s5p_ehci_platdata *pdata;
};
static struct s5p_ehci_platdata empty_platdata;
#define to_exynos_ehci(hcd) (struct exynos_ehci_hcd *)(hcd_to_ehci(hcd)->priv)
#define to_s5p_ehci(hcd) (struct s5p_ehci_hcd *)(hcd_to_ehci(hcd)->priv)
static void s5p_setup_vbus_gpio(struct platform_device *pdev)
static void exynos_setup_vbus_gpio(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
int err;
@ -73,10 +69,9 @@ static void s5p_setup_vbus_gpio(struct platform_device *pdev)
dev_err(dev, "can't request ehci vbus gpio %d", gpio);
}
static int s5p_ehci_probe(struct platform_device *pdev)
static int exynos_ehci_probe(struct platform_device *pdev)
{
struct s5p_ehci_platdata *pdata = dev_get_platdata(&pdev->dev);
struct s5p_ehci_hcd *s5p_ehci;
struct exynos_ehci_hcd *exynos_ehci;
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
struct resource *res;
@ -94,48 +89,41 @@ static int s5p_ehci_probe(struct platform_device *pdev)
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
s5p_setup_vbus_gpio(pdev);
exynos_setup_vbus_gpio(pdev);
hcd = usb_create_hcd(&s5p_ehci_hc_driver,
hcd = usb_create_hcd(&exynos_ehci_hc_driver,
&pdev->dev, dev_name(&pdev->dev));
if (!hcd) {
dev_err(&pdev->dev, "Unable to create HCD\n");
return -ENOMEM;
}
s5p_ehci = to_s5p_ehci(hcd);
exynos_ehci = to_exynos_ehci(hcd);
if (of_device_is_compatible(pdev->dev.of_node,
"samsung,exynos5440-ehci")) {
s5p_ehci->pdata = &empty_platdata;
"samsung,exynos5440-ehci"))
goto skip_phy;
}
phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
if (IS_ERR(phy)) {
/* Fallback to pdata */
if (!pdata) {
usb_put_hcd(hcd);
dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
return -EPROBE_DEFER;
} else {
s5p_ehci->pdata = pdata;
}
usb_put_hcd(hcd);
dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
return -EPROBE_DEFER;
} else {
s5p_ehci->phy = phy;
s5p_ehci->otg = phy->otg;
exynos_ehci->phy = phy;
exynos_ehci->otg = phy->otg;
}
skip_phy:
s5p_ehci->clk = devm_clk_get(&pdev->dev, "usbhost");
exynos_ehci->clk = devm_clk_get(&pdev->dev, "usbhost");
if (IS_ERR(s5p_ehci->clk)) {
if (IS_ERR(exynos_ehci->clk)) {
dev_err(&pdev->dev, "Failed to get usbhost clock\n");
err = PTR_ERR(s5p_ehci->clk);
err = PTR_ERR(exynos_ehci->clk);
goto fail_clk;
}
err = clk_prepare_enable(s5p_ehci->clk);
err = clk_prepare_enable(exynos_ehci->clk);
if (err)
goto fail_clk;
@ -162,13 +150,11 @@ skip_phy:
goto fail_io;
}
if (s5p_ehci->otg)
s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
if (exynos_ehci->otg)
exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
if (s5p_ehci->phy)
usb_phy_init(s5p_ehci->phy);
else if (s5p_ehci->pdata->phy_init)
s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
if (exynos_ehci->phy)
usb_phy_init(exynos_ehci->phy);
ehci = hcd_to_ehci(hcd);
ehci->caps = hcd->regs;
@ -187,33 +173,29 @@ skip_phy:
return 0;
fail_add_hcd:
if (s5p_ehci->phy)
usb_phy_shutdown(s5p_ehci->phy);
else if (s5p_ehci->pdata->phy_exit)
s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
if (exynos_ehci->phy)
usb_phy_shutdown(exynos_ehci->phy);
fail_io:
clk_disable_unprepare(s5p_ehci->clk);
clk_disable_unprepare(exynos_ehci->clk);
fail_clk:
usb_put_hcd(hcd);
return err;
}
static int s5p_ehci_remove(struct platform_device *pdev)
static int exynos_ehci_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd);
struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
usb_remove_hcd(hcd);
if (s5p_ehci->otg)
s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
if (exynos_ehci->otg)
exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
if (s5p_ehci->phy)
usb_phy_shutdown(s5p_ehci->phy);
else if (s5p_ehci->pdata->phy_exit)
s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
if (exynos_ehci->phy)
usb_phy_shutdown(exynos_ehci->phy);
clk_disable_unprepare(s5p_ehci->clk);
clk_disable_unprepare(exynos_ehci->clk);
usb_put_hcd(hcd);
@ -221,45 +203,39 @@ static int s5p_ehci_remove(struct platform_device *pdev)
}
#ifdef CONFIG_PM
static int s5p_ehci_suspend(struct device *dev)
static int exynos_ehci_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd);
struct platform_device *pdev = to_platform_device(dev);
struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
bool do_wakeup = device_may_wakeup(dev);
int rc;
rc = ehci_suspend(hcd, do_wakeup);
if (s5p_ehci->otg)
s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
if (exynos_ehci->otg)
exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
if (s5p_ehci->phy)
usb_phy_shutdown(s5p_ehci->phy);
else if (s5p_ehci->pdata->phy_exit)
s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
if (exynos_ehci->phy)
usb_phy_shutdown(exynos_ehci->phy);
clk_disable_unprepare(s5p_ehci->clk);
clk_disable_unprepare(exynos_ehci->clk);
return rc;
}
static int s5p_ehci_resume(struct device *dev)
static int exynos_ehci_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd);
struct platform_device *pdev = to_platform_device(dev);
struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
clk_prepare_enable(s5p_ehci->clk);
clk_prepare_enable(exynos_ehci->clk);
if (s5p_ehci->otg)
s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
if (exynos_ehci->otg)
exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
if (s5p_ehci->phy)
usb_phy_init(s5p_ehci->phy);
else if (s5p_ehci->pdata->phy_init)
s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
if (exynos_ehci->phy)
usb_phy_init(exynos_ehci->phy);
/* DMA burst Enable */
writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));
@ -268,13 +244,13 @@ static int s5p_ehci_resume(struct device *dev)
return 0;
}
#else
#define s5p_ehci_suspend NULL
#define s5p_ehci_resume NULL
#define exynos_ehci_suspend NULL
#define exynos_ehci_resume NULL
#endif
static const struct dev_pm_ops s5p_ehci_pm_ops = {
.suspend = s5p_ehci_suspend,
.resume = s5p_ehci_resume,
static const struct dev_pm_ops exynos_ehci_pm_ops = {
.suspend = exynos_ehci_suspend,
.resume = exynos_ehci_resume,
};
#ifdef CONFIG_OF
@ -286,40 +262,40 @@ static const struct of_device_id exynos_ehci_match[] = {
MODULE_DEVICE_TABLE(of, exynos_ehci_match);
#endif
static struct platform_driver s5p_ehci_driver = {
.probe = s5p_ehci_probe,
.remove = s5p_ehci_remove,
static struct platform_driver exynos_ehci_driver = {
.probe = exynos_ehci_probe,
.remove = exynos_ehci_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "s5p-ehci",
.name = "exynos-ehci",
.owner = THIS_MODULE,
.pm = &s5p_ehci_pm_ops,
.pm = &exynos_ehci_pm_ops,
.of_match_table = of_match_ptr(exynos_ehci_match),
}
};
static const struct ehci_driver_overrides s5p_overrides __initdata = {
.extra_priv_size = sizeof(struct s5p_ehci_hcd),
static const struct ehci_driver_overrides exynos_overrides __initdata = {
.extra_priv_size = sizeof(struct exynos_ehci_hcd),
};
static int __init ehci_s5p_init(void)
static int __init ehci_exynos_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ehci_init_driver(&s5p_ehci_hc_driver, &s5p_overrides);
return platform_driver_register(&s5p_ehci_driver);
ehci_init_driver(&exynos_ehci_hc_driver, &exynos_overrides);
return platform_driver_register(&exynos_ehci_driver);
}
module_init(ehci_s5p_init);
module_init(ehci_exynos_init);
static void __exit ehci_s5p_cleanup(void)
static void __exit ehci_exynos_cleanup(void)
{
platform_driver_unregister(&s5p_ehci_driver);
platform_driver_unregister(&exynos_ehci_driver);
}
module_exit(ehci_s5p_cleanup);
module_exit(ehci_exynos_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_ALIAS("platform:s5p-ehci");
MODULE_ALIAS("platform:exynos-ehci");
MODULE_AUTHOR("Jingoo Han");
MODULE_AUTHOR("Joonyoung Shim");
MODULE_LICENSE("GPL v2");

4
drivers/usb/host/ehci-fsl.c
View file

@ -57,7 +57,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver,
pr_debug("initializing FSL-SOC USB Controller\n");
/* Need platform data for setup */
pdata = (struct fsl_usb2_platform_data *)dev_get_platdata(&pdev->dev);
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
dev_err(&pdev->dev,
"No platform data for %s.\n", dev_name(&pdev->dev));
@ -664,7 +664,7 @@ static const struct hc_driver ehci_fsl_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_USB2 | HCD_MEMORY,
.flags = HCD_USB2 | HCD_MEMORY | HCD_BH,
/*
* basic lifecycle operations

2
drivers/usb/host/ehci-grlib.c
View file

@ -43,7 +43,7 @@ static const struct hc_driver ehci_grlib_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations

42
drivers/usb/host/ehci-hcd.c
View file

@ -110,6 +110,9 @@ MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications");
#include "ehci.h"
#include "pci-quirks.h"
static void compute_tt_budget(u8 budget_table[EHCI_BANDWIDTH_SIZE],
struct ehci_tt *tt);
/*
* The MosChip MCS9990 controller updates its microframe counter
* a little before the frame counter, and occasionally we will read
@ -484,6 +487,7 @@ static int ehci_init(struct usb_hcd *hcd)
INIT_LIST_HEAD(&ehci->intr_qh_list);
INIT_LIST_HEAD(&ehci->cached_itd_list);
INIT_LIST_HEAD(&ehci->cached_sitd_list);
INIT_LIST_HEAD(&ehci->tt_list);
if (HCC_PGM_FRAMELISTLEN(hcc_params)) {
/* periodic schedule size can be smaller than default */
@ -956,6 +960,7 @@ rescan:
goto idle_timeout;
/* BUG_ON(!list_empty(&stream->free_list)); */
reserve_release_iso_bandwidth(ehci, stream, -1);
kfree(stream);
goto done;
}
@ -982,6 +987,8 @@ idle_timeout:
if (qh->clearing_tt)
goto idle_timeout;
if (list_empty (&qh->qtd_list)) {
if (qh->ps.bw_uperiod)
reserve_release_intr_bandwidth(ehci, qh, -1);
qh_destroy(ehci, qh);
break;
}
@ -1022,7 +1029,6 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
* the toggle bit in the QH.
*/
if (qh) {
usb_settoggle(qh->dev, epnum, is_out, 0);
if (!list_empty(&qh->qtd_list)) {
WARN_ONCE(1, "clear_halt for a busy endpoint\n");
} else {
@ -1030,6 +1036,7 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
* while the QH is active. Unlink it now;
* re-linking will call qh_refresh().
*/
usb_settoggle(qh->ps.udev, epnum, is_out, 0);
qh->exception = 1;
if (eptype == USB_ENDPOINT_XFER_BULK)
start_unlink_async(ehci, qh);
@ -1048,6 +1055,19 @@ static int ehci_get_frame (struct usb_hcd *hcd)
/*-------------------------------------------------------------------------*/
/* Device addition and removal */
static void ehci_remove_device(struct usb_hcd *hcd, struct usb_device *udev)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
spin_lock_irq(&ehci->lock);
drop_tt(udev);
spin_unlock_irq(&ehci->lock);
}
/*-------------------------------------------------------------------------*/
#ifdef CONFIG_PM
/* suspend/resume, section 4.3 */
@ -1075,6 +1095,14 @@ int ehci_suspend(struct usb_hcd *hcd, bool do_wakeup)
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
spin_unlock_irq(&ehci->lock);
synchronize_irq(hcd->irq);
/* Check for race with a wakeup request */
if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
ehci_resume(hcd, false);
return -EBUSY;
}
return 0;
}
EXPORT_SYMBOL_GPL(ehci_suspend);
@ -1158,7 +1186,7 @@ static const struct hc_driver ehci_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations
@ -1191,6 +1219,11 @@ static const struct hc_driver ehci_hc_driver = {
.bus_resume = ehci_bus_resume,
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
/*
* device support
*/
.free_dev = ehci_remove_device,
};
void ehci_init_driver(struct hc_driver *drv,
@ -1238,11 +1271,6 @@ MODULE_LICENSE ("GPL");
#define XILINX_OF_PLATFORM_DRIVER ehci_hcd_xilinx_of_driver
#endif
#ifdef CONFIG_USB_W90X900_EHCI
#include "ehci-w90x900.c"
#define PLATFORM_DRIVER ehci_hcd_w90x900_driver
#endif
#ifdef CONFIG_USB_OCTEON_EHCI
#include "ehci-octeon.c"
#define PLATFORM_DRIVER ehci_octeon_driver

4
drivers/usb/host/ehci-mem.c
View file

@ -224,11 +224,11 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags)
hw->hw_next = EHCI_LIST_END(ehci);
hw->hw_qtd_next = EHCI_LIST_END(ehci);
hw->hw_alt_next = EHCI_LIST_END(ehci);
hw->hw_token &= ~QTD_STS_ACTIVE;
ehci->dummy->hw = hw;
for (i = 0; i < ehci->periodic_size; i++)
ehci->periodic[i] = ehci->dummy->qh_dma;
ehci->periodic[i] = cpu_to_hc32(ehci,
ehci->dummy->qh_dma);
} else {
for (i = 0; i < ehci->periodic_size; i++)
ehci->periodic[i] = EHCI_LIST_END(ehci);

20
drivers/usb/host/ehci-msm.c
View file

@ -42,7 +42,6 @@
static const char hcd_name[] = "ehci-msm";
static struct hc_driver __read_mostly msm_hc_driver;
static struct usb_phy *phy;
static int ehci_msm_reset(struct usb_hcd *hcd)
{
@ -70,6 +69,7 @@ static int ehci_msm_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
struct usb_phy *phy;
int ret;
dev_dbg(&pdev->dev, "ehci_msm proble\n");
@ -108,10 +108,14 @@ static int ehci_msm_probe(struct platform_device *pdev)
* powering up VBUS, mapping of registers address space and power
* management.
*/
phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
if (pdev->dev.of_node)
phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
else
phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
if (IS_ERR(phy)) {
dev_err(&pdev->dev, "unable to find transceiver\n");
ret = -ENODEV;
ret = -EPROBE_DEFER;
goto put_hcd;
}
@ -121,6 +125,7 @@ static int ehci_msm_probe(struct platform_device *pdev)
goto put_hcd;
}
hcd->phy = phy;
device_init_wakeup(&pdev->dev, 1);
/*
* OTG device parent of HCD takes care of putting
@ -147,7 +152,7 @@ static int ehci_msm_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
otg_set_host(phy->otg, NULL);
otg_set_host(hcd->phy->otg, NULL);
/* FIXME: need to call usb_remove_hcd() here? */
@ -186,12 +191,19 @@ static const struct dev_pm_ops ehci_msm_dev_pm_ops = {
.resume = ehci_msm_pm_resume,
};
static struct of_device_id msm_ehci_dt_match[] = {
{ .compatible = "qcom,ehci-host", },
{}
};
MODULE_DEVICE_TABLE(of, msm_ehci_dt_match);
static struct platform_driver ehci_msm_driver = {
.probe = ehci_msm_probe,
.remove = ehci_msm_remove,
.driver = {
.name = "msm_hsusb_host",
.pm = &ehci_msm_dev_pm_ops,
.of_match_table = msm_ehci_dt_match,
},
};

2
drivers/usb/host/ehci-mv.c
View file

@ -96,7 +96,7 @@ static const struct hc_driver mv_ehci_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations

2
drivers/usb/host/ehci-octeon.c
View file

@ -51,7 +51,7 @@ static const struct hc_driver ehci_octeon_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations

24
drivers/usb/host/ehci-pci.c
View file

@ -58,8 +58,6 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
struct pci_dev *p_smbus;
u8 rev;
u32 temp;
int retval;
@ -175,22 +173,12 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
/* SB600 and old version of SB700 have a bug in EHCI controller,
* which causes usb devices lose response in some cases.
*/
if ((pdev->device == 0x4386) || (pdev->device == 0x4396)) {
p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
PCI_DEVICE_ID_ATI_SBX00_SMBUS,
NULL);
if (!p_smbus)
break;
rev = p_smbus->revision;
if ((pdev->device == 0x4386) || (rev == 0x3a)
|| (rev == 0x3b)) {
u8 tmp;
ehci_info(ehci, "applying AMD SB600/SB700 USB "
"freeze workaround\n");
pci_read_config_byte(pdev, 0x53, &tmp);
pci_write_config_byte(pdev, 0x53, tmp | (1<<3));
}
pci_dev_put(p_smbus);
if ((pdev->device == 0x4386 || pdev->device == 0x4396) &&
usb_amd_hang_symptom_quirk()) {
u8 tmp;
ehci_info(ehci, "applying AMD SB600/SB700 USB freeze workaround\n");
pci_read_config_byte(pdev, 0x53, &tmp);
pci_write_config_byte(pdev, 0x53, tmp | (1<<3));
}
break;
case PCI_VENDOR_ID_NETMOS:

2
drivers/usb/host/ehci-pmcmsp.c
View file

@ -286,7 +286,7 @@ static const struct hc_driver ehci_msp_hc_driver = {
#else
.irq = ehci_irq,
#endif
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations

2
drivers/usb/host/ehci-ppc-of.c
View file

@ -28,7 +28,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations

2
drivers/usb/host/ehci-ps3.c
View file

@ -71,7 +71,7 @@ static const struct hc_driver ps3_ehci_hc_driver = {
.product_desc = "PS3 EHCI Host Controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
.reset = ps3_ehci_hc_reset,
.start = ehci_run,
.stop = ehci_stop,

64
drivers/usb/host/ehci-q.c
View file

@ -105,9 +105,9 @@ qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd)
is_out = qh->is_out;
epnum = (hc32_to_cpup(ehci, &hw->hw_info1) >> 8) & 0x0f;
if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) {
if (unlikely(!usb_gettoggle(qh->ps.udev, epnum, is_out))) {
hw->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE);
usb_settoggle (qh->dev, epnum, is_out, 1);
usb_settoggle(qh->ps.udev, epnum, is_out, 1);
}
}
@ -247,8 +247,6 @@ static int qtd_copy_status (
static void
ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status)
__releases(ehci->lock)
__acquires(ehci->lock)
{
if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
/* ... update hc-wide periodic stats */
@ -274,11 +272,8 @@ __acquires(ehci->lock)
urb->actual_length, urb->transfer_buffer_length);
#endif
/* complete() can reenter this HCD */
usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
spin_unlock (&ehci->lock);
usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status);
spin_lock (&ehci->lock);
}
static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh);
@ -802,26 +797,35 @@ qh_make (
* For control/bulk requests, the HC or TT handles these.
*/
if (type == PIPE_INTERRUPT) {
qh->usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH,
unsigned tmp;
qh->ps.usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH,
is_input, 0,
hb_mult(maxp) * max_packet(maxp)));
qh->start = NO_FRAME;
qh->ps.phase = NO_FRAME;
if (urb->dev->speed == USB_SPEED_HIGH) {
qh->c_usecs = 0;
qh->ps.c_usecs = 0;
qh->gap_uf = 0;
qh->period = urb->interval >> 3;
if (qh->period == 0 && urb->interval != 1) {
if (urb->interval > 1 && urb->interval < 8) {
/* NOTE interval 2 or 4 uframes could work.
* But interval 1 scheduling is simpler, and
* includes high bandwidth.
*/
urb->interval = 1;
} else if (qh->period > ehci->periodic_size) {
qh->period = ehci->periodic_size;
urb->interval = qh->period << 3;
} else if (urb->interval > ehci->periodic_size << 3) {
urb->interval = ehci->periodic_size << 3;
}
qh->ps.period = urb->interval >> 3;
/* period for bandwidth allocation */
tmp = min_t(unsigned, EHCI_BANDWIDTH_SIZE,
1 << (urb->ep->desc.bInterval - 1));
/* Allow urb->interval to override */
qh->ps.bw_uperiod = min_t(unsigned, tmp, urb->interval);
qh->ps.bw_period = qh->ps.bw_uperiod >> 3;
} else {
int think_time;
@ -831,27 +835,35 @@ qh_make (
/* FIXME this just approximates SPLIT/CSPLIT times */
if (is_input) { // SPLIT, gap, CSPLIT+DATA
qh->c_usecs = qh->usecs + HS_USECS (0);
qh->usecs = HS_USECS (1);
qh->ps.c_usecs = qh->ps.usecs + HS_USECS(0);
qh->ps.usecs = HS_USECS(1);
} else { // SPLIT+DATA, gap, CSPLIT
qh->usecs += HS_USECS (1);
qh->c_usecs = HS_USECS (0);
qh->ps.usecs += HS_USECS(1);
qh->ps.c_usecs = HS_USECS(0);
}
think_time = tt ? tt->think_time : 0;
qh->tt_usecs = NS_TO_US (think_time +
qh->ps.tt_usecs = NS_TO_US(think_time +
usb_calc_bus_time (urb->dev->speed,
is_input, 0, max_packet (maxp)));
qh->period = urb->interval;
if (qh->period > ehci->periodic_size) {
qh->period = ehci->periodic_size;
urb->interval = qh->period;
}
if (urb->interval > ehci->periodic_size)
urb->interval = ehci->periodic_size;
qh->ps.period = urb->interval;
/* period for bandwidth allocation */
tmp = min_t(unsigned, EHCI_BANDWIDTH_FRAMES,
urb->ep->desc.bInterval);
tmp = rounddown_pow_of_two(tmp);
/* Allow urb->interval to override */
qh->ps.bw_period = min_t(unsigned, tmp, urb->interval);
qh->ps.bw_uperiod = qh->ps.bw_period << 3;
}
}
/* support for tt scheduling, and access to toggles */
qh->dev = urb->dev;
qh->ps.udev = urb->dev;
qh->ps.ep = urb->ep;
/* using TT? */
switch (urb->dev->speed) {

1051
drivers/usb/host/ehci-sched.c
View file

File diff suppressed because it is too large Load diff

2
drivers/usb/host/ehci-sead3.c
View file

@ -55,7 +55,7 @@ const struct hc_driver ehci_sead3_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations

2
drivers/usb/host/ehci-sh.c
View file

@ -36,7 +36,7 @@ static const struct hc_driver ehci_sh_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_USB2 | HCD_MEMORY,
.flags = HCD_USB2 | HCD_MEMORY | HCD_BH,
/*
* basic lifecycle operations

15
drivers/usb/host/ehci-sysfs.c
View file

@ -97,8 +97,7 @@ static ssize_t store_uframe_periodic_max(struct device *dev,
{
struct ehci_hcd *ehci;
unsigned uframe_periodic_max;
unsigned frame, uframe;
unsigned short allocated_max;
unsigned uframe;
unsigned long flags;
ssize_t ret;
@ -122,16 +121,14 @@ static ssize_t store_uframe_periodic_max(struct device *dev,
/*
* for request to decrease max periodic bandwidth, we have to check
* every microframe in the schedule to see whether the decrease is
* possible.
* to see whether the decrease is possible.
*/
if (uframe_periodic_max < ehci->uframe_periodic_max) {
allocated_max = 0;
u8 allocated_max = 0;
for (frame = 0; frame < ehci->periodic_size; ++frame)
for (uframe = 0; uframe < 7; ++uframe)
allocated_max = max(allocated_max,
periodic_usecs (ehci, frame, uframe));
for (uframe = 0; uframe < EHCI_BANDWIDTH_SIZE; ++uframe)
allocated_max = max(allocated_max,
ehci->bandwidth[uframe]);
if (allocated_max > uframe_periodic_max) {
ehci_info(ehci,

4
drivers/usb/host/ehci-tegra.c
View file

@ -388,7 +388,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
err = clk_prepare_enable(tegra->clk);
if (err)
goto cleanup_clk_get;
goto cleanup_hcd_create;
tegra_periph_reset_assert(tegra->clk);
udelay(1);
@ -465,8 +465,6 @@ cleanup_phy:
usb_phy_shutdown(hcd->phy);
cleanup_clk_en:
clk_disable_unprepare(tegra->clk);
cleanup_clk_get:
clk_put(tegra->clk);
cleanup_hcd_create:
usb_put_hcd(hcd);
return err;

2
drivers/usb/host/ehci-tilegx.c
View file

@ -61,7 +61,7 @@ static const struct hc_driver ehci_tilegx_hc_driver = {
* Generic hardware linkage.
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* Basic lifecycle operations.

89
drivers/usb/host/ehci-w90x900.c
View file

@ -11,13 +11,28 @@
*
*/
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include "ehci.h"
/* enable phy0 and phy1 for w90p910 */
#define ENPHY (0x01<<8)
#define PHY0_CTR (0xA4)
#define PHY1_CTR (0xA8)
#define DRIVER_DESC "EHCI w90x900 driver"
static const char hcd_name[] = "ehci-w90x900 ";
static struct hc_driver __read_mostly ehci_w90x900_hc_driver;
static int usb_w90x900_probe(const struct hc_driver *driver,
struct platform_device *pdev)
{
@ -90,8 +105,8 @@ err1:
return retval;
}
static
void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev)
static void usb_w90x900_remove(struct usb_hcd *hcd,
struct platform_device *pdev)
{
usb_remove_hcd(hcd);
iounmap(hcd->regs);
@ -99,54 +114,6 @@ void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev)
usb_put_hcd(hcd);
}
static const struct hc_driver ehci_w90x900_hc_driver = {
.description = hcd_name,
.product_desc = "Nuvoton w90x900 EHCI Host Controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
/*
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_USB2|HCD_MEMORY,
/*
* basic lifecycle operations
*/
.reset = ehci_setup,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
/*
* scheduling support
*/
.get_frame_number = ehci_get_frame,
/*
* root hub support
*/
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ehci_bus_suspend,
.bus_resume = ehci_bus_resume,
#endif
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
static int ehci_w90x900_probe(struct platform_device *pdev)
{
if (usb_disabled())
@ -173,7 +140,25 @@ static struct platform_driver ehci_hcd_w90x900_driver = {
},
};
static int __init ehci_w90X900_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ehci_init_driver(&ehci_w90x900_hc_driver, NULL);
return platform_driver_register(&ehci_hcd_w90x900_driver);
}
module_init(ehci_w90X900_init);
static void __exit ehci_w90X900_cleanup(void)
{
platform_driver_unregister(&ehci_hcd_w90x900_driver);
}
module_exit(ehci_w90X900_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR("Wan ZongShun <[email protected]>");
MODULE_DESCRIPTION("w90p910 usb ehci driver!");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:w90p910-ehci");
MODULE_LICENSE("GPL v2");

2
drivers/usb/host/ehci-xilinx-of.c
View file

@ -79,7 +79,7 @@ static const struct hc_driver ehci_xilinx_of_hc_driver = {
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations

81
drivers/usb/host/ehci.h
View file

@ -54,6 +54,28 @@ struct ehci_stats {
unsigned long unlink;
};
/*
* Scheduling and budgeting information for periodic transfers, for both
* high-speed devices and full/low-speed devices lying behind a TT.
*/
struct ehci_per_sched {
struct usb_device *udev; /* access to the TT */
struct usb_host_endpoint *ep;
struct list_head ps_list; /* node on ehci_tt's ps_list */
u16 tt_usecs; /* time on the FS/LS bus */
u16 cs_mask; /* C-mask and S-mask bytes */
u16 period; /* actual period in frames */
u16 phase; /* actual phase, frame part */
u8 bw_phase; /* same, for bandwidth
reservation */
u8 phase_uf; /* uframe part of the phase */
u8 usecs, c_usecs; /* times on the HS bus */
u8 bw_uperiod; /* period in microframes, for
bandwidth reservation */
u8 bw_period; /* same, in frames */
};
#define NO_FRAME 29999 /* frame not assigned yet */
/* ehci_hcd->lock guards shared data against other CPUs:
* ehci_hcd: async, unlink, periodic (and shadow), ...
* usb_host_endpoint: hcpriv
@ -230,6 +252,15 @@ struct ehci_hcd { /* one per controller */
struct dentry *debug_dir;
#endif
/* bandwidth usage */
#define EHCI_BANDWIDTH_SIZE 64
#define EHCI_BANDWIDTH_FRAMES (EHCI_BANDWIDTH_SIZE >> 3)
u8 bandwidth[EHCI_BANDWIDTH_SIZE];
/* us allocated per uframe */
u8 tt_budget[EHCI_BANDWIDTH_SIZE];
/* us budgeted per uframe */
struct list_head tt_list;
/* platform-specific data -- must come last */
unsigned long priv[0] __aligned(sizeof(s64));
};
@ -385,6 +416,7 @@ struct ehci_qh {
struct list_head intr_node; /* list of intr QHs */
struct ehci_qtd *dummy;
struct list_head unlink_node;
struct ehci_per_sched ps; /* scheduling info */
unsigned unlink_cycle;
@ -398,16 +430,8 @@ struct ehci_qh {
u8 xacterrs; /* XactErr retry counter */
#define QH_XACTERR_MAX 32 /* XactErr retry limit */
/* periodic schedule info */
u8 usecs; /* intr bandwidth */
u8 gap_uf; /* uframes split/csplit gap */
u8 c_usecs; /* ... split completion bw */
u16 tt_usecs; /* tt downstream bandwidth */
unsigned short period; /* polling interval */
unsigned short start; /* where polling starts */
#define NO_FRAME ((unsigned short)~0) /* pick new start */
struct usb_device *dev; /* access to TT */
unsigned is_out:1; /* bulk or intr OUT */
unsigned clearing_tt:1; /* Clear-TT-Buf in progress */
unsigned dequeue_during_giveback:1;
@ -434,6 +458,7 @@ struct ehci_iso_packet {
struct ehci_iso_sched {
struct list_head td_list;
unsigned span;
unsigned first_packet;
struct ehci_iso_packet packet [0];
};
@ -449,22 +474,17 @@ struct ehci_iso_stream {
u8 highspeed;
struct list_head td_list; /* queued itds/sitds */
struct list_head free_list; /* list of unused itds/sitds */
struct usb_device *udev;
struct usb_host_endpoint *ep;
/* output of (re)scheduling */
int next_uframe;
struct ehci_per_sched ps; /* scheduling info */
unsigned next_uframe;
__hc32 splits;
/* the rest is derived from the endpoint descriptor,
* trusting urb->interval == f(epdesc->bInterval) and
* including the extra info for hw_bufp[0..2]
*/
u8 usecs, c_usecs;
u16 interval;
u16 tt_usecs;
u16 uperiod; /* period in uframes */
u16 maxp;
u16 raw_mask;
unsigned bandwidth;
/* This is used to initialize iTD's hw_bufp fields */
@ -579,6 +599,35 @@ struct ehci_fstn {
/*-------------------------------------------------------------------------*/
/*
* USB-2.0 Specification Sections 11.14 and 11.18
* Scheduling and budgeting split transactions using TTs
*
* A hub can have a single TT for all its ports, or multiple TTs (one for each
* port). The bandwidth and budgeting information for the full/low-speed bus
* below each TT is self-contained and independent of the other TTs or the
* high-speed bus.
*
* "Bandwidth" refers to the number of microseconds on the FS/LS bus allocated
* to an interrupt or isochronous endpoint for each frame. "Budget" refers to
* the best-case estimate of the number of full-speed bytes allocated to an
* endpoint for each microframe within an allocated frame.
*
* Removal of an endpoint invalidates a TT's budget. Instead of trying to
* keep an up-to-date record, we recompute the budget when it is needed.
*/
struct ehci_tt {
u16 bandwidth[EHCI_BANDWIDTH_FRAMES];
struct list_head tt_list; /* List of all ehci_tt's */
struct list_head ps_list; /* Items using this TT */
struct usb_tt *usb_tt;
int tt_port; /* TT port number */
};
/*-------------------------------------------------------------------------*/
/* Prepare the PORTSC wakeup flags during controller suspend/resume */
#define ehci_prepare_ports_for_controller_suspend(ehci, do_wakeup) \

2
drivers/usb/host/fotg210-hcd.c
View file

@ -412,7 +412,7 @@ struct debug_buffer {
tmp = 'h'; break; \
default: \
tmp = '?'; break; \
}; tmp; })
} tmp; })
static inline char token_mark(struct fotg210_hcd *fotg210, __hc32 token)
{

2
drivers/usb/host/fusbh200-hcd.c
View file

@ -402,7 +402,7 @@ struct debug_buffer {
case QH_LOW_SPEED: tmp = 'l'; break; \
case QH_HIGH_SPEED: tmp = 'h'; break; \
default: tmp = '?'; break; \
}; tmp; })
} tmp; })
static inline char token_mark(struct fusbh200_hcd *fusbh200, __hc32 token)
{

33
drivers/usb/host/hwa-hc.c
View file

@ -199,10 +199,14 @@ static int hwahc_op_get_frame_number(struct usb_hcd *usb_hcd)
{
struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd);
struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
struct wahc *wa = &hwahc->wa;
dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__,
usb_hcd, hwahc);
return -ENOSYS;
/*
* We cannot query the HWA for the WUSB time since that requires sending
* a synchronous URB and this function can be called in_interrupt.
* Instead, query the USB frame number for our parent and use that.
*/
return usb_get_current_frame_number(wa->usb_dev);
}
static int hwahc_op_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb,
@ -566,14 +570,10 @@ found:
goto error;
}
wa->wa_descr = wa_descr = (struct usb_wa_descriptor *) hdr;
/* Make LE fields CPU order */
wa_descr->bcdWAVersion = le16_to_cpu(wa_descr->bcdWAVersion);
wa_descr->wNumRPipes = le16_to_cpu(wa_descr->wNumRPipes);
wa_descr->wRPipeMaxBlock = le16_to_cpu(wa_descr->wRPipeMaxBlock);
if (wa_descr->bcdWAVersion > 0x0100)
if (le16_to_cpu(wa_descr->bcdWAVersion) > 0x0100)
dev_warn(dev, "Wire Adapter v%d.%d newer than groked v1.0\n",
wa_descr->bcdWAVersion & 0xff00 >> 8,
wa_descr->bcdWAVersion & 0x00ff);
le16_to_cpu(wa_descr->bcdWAVersion) & 0xff00 >> 8,
le16_to_cpu(wa_descr->bcdWAVersion) & 0x00ff);
result = 0;
error:
return result;
@ -679,7 +679,8 @@ static void hwahc_security_release(struct hwahc *hwahc)
/* nothing to do here so far... */
}
static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface)
static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface,
kernel_ulong_t quirks)
{
int result;
struct device *dev = &iface->dev;
@ -724,7 +725,7 @@ static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface)
dev_err(dev, "Can't create WUSB HC structures: %d\n", result);
goto error_wusbhc_create;
}
result = wa_create(&hwahc->wa, iface);
result = wa_create(&hwahc->wa, iface, quirks);
if (result < 0)
goto error_wa_create;
return 0;
@ -780,7 +781,7 @@ static int hwahc_probe(struct usb_interface *usb_iface,
wusbhc = usb_hcd_to_wusbhc(usb_hcd);
hwahc = container_of(wusbhc, struct hwahc, wusbhc);
hwahc_init(hwahc);
result = hwahc_create(hwahc, usb_iface);
result = hwahc_create(hwahc, usb_iface, id->driver_info);
if (result < 0) {
dev_err(dev, "Cannot initialize internals: %d\n", result);
goto error_hwahc_create;
@ -824,6 +825,12 @@ static void hwahc_disconnect(struct usb_interface *usb_iface)
}
static struct usb_device_id hwahc_id_table[] = {
/* Alereon 5310 */
{ USB_DEVICE_AND_INTERFACE_INFO(0x13dc, 0x5310, 0xe0, 0x02, 0x01),
.driver_info = WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC },
/* Alereon 5611 */
{ USB_DEVICE_AND_INTERFACE_INFO(0x13dc, 0x5611, 0xe0, 0x02, 0x01),
.driver_info = WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC },
/* FIXME: use class labels for this */
{ USB_INTERFACE_INFO(0xe0, 0x02, 0x01), },
{},

2
drivers/usb/host/isp1362-hcd.c
View file

@ -2108,7 +2108,7 @@ static int isp1362_show(struct seq_file *s, void *unused)
default:
s = "?";
break;
};
}
s;}), ep->maxpacket) ;
list_for_each_entry(urb, &ep->hep->urb_list, urb_list) {
seq_printf(s, " urb%p, %d/%d\n", urb,

156
drivers/usb/host/ohci-at91.c
View file

@ -13,19 +13,24 @@
*/
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/of_platform.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/platform_data/atmel.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include <mach/hardware.h>
#include <asm/gpio.h>
#include <mach/cpu.h>
#ifndef CONFIG_ARCH_AT91
#error "CONFIG_ARCH_AT91 must be defined."
#endif
#include "ohci.h"
#define valid_port(index) ((index) >= 0 && (index) < AT91_MAX_USBH_PORTS)
#define at91_for_each_port(index) \
@ -33,7 +38,17 @@
/* interface, function and usb clocks; sometimes also an AHB clock */
static struct clk *iclk, *fclk, *uclk, *hclk;
/* interface and function clocks; sometimes also an AHB clock */
#define DRIVER_DESC "OHCI Atmel driver"
static const char hcd_name[] = "ohci-atmel";
static struct hc_driver __read_mostly ohci_at91_hc_driver;
static int clocked;
static int (*orig_ohci_hub_control)(struct usb_hcd *hcd, u16 typeReq,
u16 wValue, u16 wIndex, char *buf, u16 wLength);
static int (*orig_ohci_hub_status_data)(struct usb_hcd *hcd, char *buf);
extern int usb_disabled(void);
@ -117,6 +132,8 @@ static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *);
static int usb_hcd_at91_probe(const struct hc_driver *driver,
struct platform_device *pdev)
{
struct at91_usbh_data *board;
struct ohci_hcd *ohci;
int retval;
struct usb_hcd *hcd = NULL;
@ -177,8 +194,10 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
}
}
board = hcd->self.controller->platform_data;
ohci = hcd_to_ohci(hcd);
ohci->num_ports = board->ports;
at91_start_hc(pdev);
ohci_hcd_init(hcd_to_ohci(hcd));
retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
if (retval == 0)
@ -238,36 +257,6 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd,
}
/*-------------------------------------------------------------------------*/
static int
ohci_at91_reset (struct usb_hcd *hcd)
{
struct at91_usbh_data *board = dev_get_platdata(hcd->self.controller);
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
if ((ret = ohci_init(ohci)) < 0)
return ret;
ohci->num_ports = board->ports;
return 0;
}
static int
ohci_at91_start (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
if ((ret = ohci_run(ohci)) < 0) {
dev_err(hcd->self.controller, "can't start %s\n",
hcd->self.bus_name);
ohci_stop(hcd);
return ret;
}
return 0;
}
static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int enable)
{
if (!valid_port(port))
@ -297,8 +286,8 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
*/
static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf)
{
struct at91_usbh_data *pdata = dev_get_platdata(hcd->self.controller);
int length = ohci_hub_status_data(hcd, buf);
struct at91_usbh_data *pdata = hcd->self.controller->platform_data;
int length = orig_ohci_hub_status_data(hcd, buf);
int port;
at91_for_each_port(port) {
@ -376,7 +365,8 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
break;
}
ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength);
ret = orig_ohci_hub_control(hcd, typeReq, wValue, wIndex + 1,
buf, wLength);
if (ret)
goto out;
@ -430,51 +420,6 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
/*-------------------------------------------------------------------------*/
static const struct hc_driver ohci_at91_hc_driver = {
.description = hcd_name,
.product_desc = "AT91 OHCI",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.reset = ohci_at91_reset,
.start = ohci_at91_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_at91_hub_status_data,
.hub_control = ohci_at91_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
/*-------------------------------------------------------------------------*/
static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
{
struct platform_device *pdev = data;
@ -703,7 +648,11 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
* REVISIT: some boards will be able to turn VBUS off...
*/
if (at91_suspend_entering_slow_clock()) {
ohci_usb_reset (ohci);
ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
ohci->hc_control &= OHCI_CTRL_RWC;
ohci_writel(ohci, ohci->hc_control, &ohci->regs->control);
ohci->rh_state = OHCI_RH_HALTED;
/* flush the writes */
(void) ohci_readl (ohci, &ohci->regs->control);
at91_stop_clock();
@ -730,8 +679,6 @@ static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
#define ohci_hcd_at91_drv_resume NULL
#endif
MODULE_ALIAS("platform:at91_ohci");
static struct platform_driver ohci_hcd_at91_driver = {
.probe = ohci_hcd_at91_drv_probe,
.remove = ohci_hcd_at91_drv_remove,
@ -744,3 +691,40 @@ static struct platform_driver ohci_hcd_at91_driver = {
.of_match_table = of_match_ptr(at91_ohci_dt_ids),
},
};
static int __init ohci_at91_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&ohci_at91_hc_driver, NULL);
/*
* The Atmel HW has some unusual quirks, which require Atmel-specific
* workarounds. We override certain hc_driver functions here to
* achieve that. We explicitly do not enhance ohci_driver_overrides to
* allow this more easily, since this is an unusual case, and we don't
* want to encourage others to override these functions by making it
* too easy.
*/
orig_ohci_hub_control = ohci_at91_hc_driver.hub_control;
orig_ohci_hub_status_data = ohci_at91_hc_driver.hub_status_data;
ohci_at91_hc_driver.hub_status_data = ohci_at91_hub_status_data;
ohci_at91_hc_driver.hub_control = ohci_at91_hub_control;
return platform_driver_register(&ohci_hcd_at91_driver);
}
module_init(ohci_at91_init);
static void __exit ohci_at91_cleanup(void)
{
platform_driver_unregister(&ohci_hcd_at91_driver);
}
module_exit(ohci_at91_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:at91_ohci");

2
drivers/usb/host/ohci-dbg.c
View file

@ -17,7 +17,7 @@
case PIPE_BULK: temp = "bulk"; break; \
case PIPE_INTERRUPT: temp = "intr"; break; \
default: temp = "isoc"; break; \
}; temp;})
} temp;})
#define pipestring(pipe) edstring(usb_pipetype(pipe))
/* debug| print the main components of an URB

184
drivers/usb/host/ohci-ep93xx.c
View file

@ -1,184 +0,0 @@
/*
* OHCI HCD (Host Controller Driver) for USB.
*
* (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
* (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
* (C) Copyright 2002 Hewlett-Packard Company
*
* Bus Glue for ep93xx.
*
* Written by Christopher Hoover <ch@hpl.hp.com>
* Based on fragments of previous driver by Russell King et al.
*
* Modified for LH7A404 from ohci-sa1111.c
* by Durgesh Pattamatta <pattamattad@sharpsec.com>
*
* Modified for pxa27x from ohci-lh7a404.c
* by Nick Bane <nick@cecomputing.co.uk> 26-8-2004
*
* Modified for ep93xx from ohci-pxa27x.c
* by Lennert Buytenhek <buytenh@wantstofly.org> 28-2-2006
* Based on an earlier driver by Ray Lehtiniemi
*
* This file is licenced under the GPL.
*/
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/signal.h>
#include <linux/platform_device.h>
static struct clk *usb_host_clock;
static int ohci_ep93xx_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
if ((ret = ohci_init(ohci)) < 0)
return ret;
if ((ret = ohci_run(ohci)) < 0) {
dev_err(hcd->self.controller, "can't start %s\n",
hcd->self.bus_name);
ohci_stop(hcd);
return ret;
}
return 0;
}
static struct hc_driver ohci_ep93xx_hc_driver = {
.description = hcd_name,
.product_desc = "EP93xx OHCI",
.hcd_priv_size = sizeof(struct ohci_hcd),
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
.start = ohci_ep93xx_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
.get_frame_number = ohci_get_frame,
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
int irq;
int ret;
if (usb_disabled())
return -ENODEV;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENXIO;
hcd = usb_create_hcd(&ohci_ep93xx_hc_driver, &pdev->dev, "ep93xx");
if (!hcd)
return -ENOMEM;
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(hcd->regs)) {
ret = PTR_ERR(hcd->regs);
goto err_put_hcd;
}
usb_host_clock = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(usb_host_clock)) {
ret = PTR_ERR(usb_host_clock);
goto err_put_hcd;
}
clk_enable(usb_host_clock);
ohci_hcd_init(hcd_to_ohci(hcd));
ret = usb_add_hcd(hcd, irq, 0);
if (ret)
goto err_clk_disable;
return 0;
err_clk_disable:
clk_disable(usb_host_clock);
err_put_hcd:
usb_put_hcd(hcd);
return ret;
}
static int ohci_hcd_ep93xx_drv_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
clk_disable(usb_host_clock);
usb_put_hcd(hcd);
return 0;
}
#ifdef CONFIG_PM
static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_t state)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
clk_disable(usb_host_clock);
return 0;
}
static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
clk_enable(usb_host_clock);
ohci_resume(hcd, false);
return 0;
}
#endif
static struct platform_driver ohci_hcd_ep93xx_driver = {
.probe = ohci_hcd_ep93xx_drv_probe,
.remove = ohci_hcd_ep93xx_drv_remove,
.shutdown = usb_hcd_platform_shutdown,
#ifdef CONFIG_PM
.suspend = ohci_hcd_ep93xx_drv_suspend,
.resume = ohci_hcd_ep93xx_drv_resume,
#endif
.driver = {
.name = "ep93xx-ohci",
.owner = THIS_MODULE,
},
};
MODULE_ALIAS("platform:ep93xx-ohci");

184
drivers/usb/host/ohci-exynos.c
View file

@ -12,98 +12,55 @@
*/
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/platform_data/usb-ohci-exynos.h>
#include <linux/usb/phy.h>
#include <linux/usb/samsung_usb_phy.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include <linux/usb/otg.h>
#include "ohci.h"
#define DRIVER_DESC "OHCI EXYNOS driver"
static const char hcd_name[] = "ohci-exynos";
static struct hc_driver __read_mostly exynos_ohci_hc_driver;
#define to_exynos_ohci(hcd) (struct exynos_ohci_hcd *)(hcd_to_ohci(hcd)->priv)
struct exynos_ohci_hcd {
struct device *dev;
struct usb_hcd *hcd;
struct clk *clk;
struct usb_phy *phy;
struct usb_otg *otg;
struct exynos4_ohci_platdata *pdata;
};
static void exynos_ohci_phy_enable(struct exynos_ohci_hcd *exynos_ohci)
static void exynos_ohci_phy_enable(struct platform_device *pdev)
{
struct platform_device *pdev = to_platform_device(exynos_ohci->dev);
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
if (exynos_ohci->phy)
usb_phy_init(exynos_ohci->phy);
else if (exynos_ohci->pdata && exynos_ohci->pdata->phy_init)
exynos_ohci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
}
static void exynos_ohci_phy_disable(struct exynos_ohci_hcd *exynos_ohci)
static void exynos_ohci_phy_disable(struct platform_device *pdev)
{
struct platform_device *pdev = to_platform_device(exynos_ohci->dev);
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
if (exynos_ohci->phy)
usb_phy_shutdown(exynos_ohci->phy);
else if (exynos_ohci->pdata && exynos_ohci->pdata->phy_exit)
exynos_ohci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
}
static int ohci_exynos_reset(struct usb_hcd *hcd)
{
return ohci_init(hcd_to_ohci(hcd));
}
static int ohci_exynos_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
ohci_dbg(ohci, "ohci_exynos_start, ohci:%p", ohci);
ret = ohci_run(ohci);
if (ret < 0) {
dev_err(hcd->self.controller, "can't start %s\n",
hcd->self.bus_name);
ohci_stop(hcd);
return ret;
}
return 0;
}
static const struct hc_driver exynos_ohci_hc_driver = {
.description = hcd_name,
.product_desc = "EXYNOS OHCI Host Controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
.irq = ohci_irq,
.flags = HCD_MEMORY|HCD_USB11,
.reset = ohci_exynos_reset,
.start = ohci_exynos_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
.get_frame_number = ohci_get_frame,
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
static int exynos_ohci_probe(struct platform_device *pdev)
{
struct exynos4_ohci_platdata *pdata = dev_get_platdata(&pdev->dev);
struct exynos_ohci_hcd *exynos_ohci;
struct usb_hcd *hcd;
struct ohci_hcd *ohci;
struct resource *res;
struct usb_phy *phy;
int irq;
@ -119,10 +76,14 @@ static int exynos_ohci_probe(struct platform_device *pdev)
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
exynos_ohci = devm_kzalloc(&pdev->dev, sizeof(struct exynos_ohci_hcd),
GFP_KERNEL);
if (!exynos_ohci)
hcd = usb_create_hcd(&exynos_ohci_hc_driver,
&pdev->dev, dev_name(&pdev->dev));
if (!hcd) {
dev_err(&pdev->dev, "Unable to create HCD\n");
return -ENOMEM;
}
exynos_ohci = to_exynos_ohci(hcd);
if (of_device_is_compatible(pdev->dev.of_node,
"samsung,exynos5440-ohci"))
@ -130,30 +91,15 @@ static int exynos_ohci_probe(struct platform_device *pdev)
phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
if (IS_ERR(phy)) {
/* Fallback to pdata */
if (!pdata) {
dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
return -EPROBE_DEFER;
} else {
exynos_ohci->pdata = pdata;
}
usb_put_hcd(hcd);
dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
return -EPROBE_DEFER;
} else {
exynos_ohci->phy = phy;
exynos_ohci->otg = phy->otg;
}
skip_phy:
exynos_ohci->dev = &pdev->dev;
hcd = usb_create_hcd(&exynos_ohci_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
if (!hcd) {
dev_err(&pdev->dev, "Unable to create HCD\n");
return -ENOMEM;
}
exynos_ohci->hcd = hcd;
exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost");
if (IS_ERR(exynos_ohci->clk)) {
@ -190,26 +136,21 @@ skip_phy:
}
if (exynos_ohci->otg)
exynos_ohci->otg->set_host(exynos_ohci->otg,
&exynos_ohci->hcd->self);
exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
exynos_ohci_phy_enable(exynos_ohci);
platform_set_drvdata(pdev, hcd);
ohci = hcd_to_ohci(hcd);
ohci_hcd_init(ohci);
exynos_ohci_phy_enable(pdev);
err = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (err) {
dev_err(&pdev->dev, "Failed to add USB HCD\n");
goto fail_add_hcd;
}
platform_set_drvdata(pdev, exynos_ohci);
return 0;
fail_add_hcd:
exynos_ohci_phy_disable(exynos_ohci);
exynos_ohci_phy_disable(pdev);
fail_io:
clk_disable_unprepare(exynos_ohci->clk);
fail_clk:
@ -219,16 +160,15 @@ fail_clk:
static int exynos_ohci_remove(struct platform_device *pdev)
{
struct exynos_ohci_hcd *exynos_ohci = platform_get_drvdata(pdev);
struct usb_hcd *hcd = exynos_ohci->hcd;
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
usb_remove_hcd(hcd);
if (exynos_ohci->otg)
exynos_ohci->otg->set_host(exynos_ohci->otg,
&exynos_ohci->hcd->self);
exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
exynos_ohci_phy_disable(exynos_ohci);
exynos_ohci_phy_disable(pdev);
clk_disable_unprepare(exynos_ohci->clk);
@ -239,8 +179,7 @@ static int exynos_ohci_remove(struct platform_device *pdev)
static void exynos_ohci_shutdown(struct platform_device *pdev)
{
struct exynos_ohci_hcd *exynos_ohci = platform_get_drvdata(pdev);
struct usb_hcd *hcd = exynos_ohci->hcd;
struct usb_hcd *hcd = platform_get_drvdata(pdev);
if (hcd->driver->shutdown)
hcd->driver->shutdown(hcd);
@ -249,9 +188,10 @@ static void exynos_ohci_shutdown(struct platform_device *pdev)
#ifdef CONFIG_PM
static int exynos_ohci_suspend(struct device *dev)
{
struct exynos_ohci_hcd *exynos_ohci = dev_get_drvdata(dev);
struct usb_hcd *hcd = exynos_ohci->hcd;
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct platform_device *pdev = to_platform_device(dev);
unsigned long flags;
int rc = 0;
@ -271,10 +211,9 @@ static int exynos_ohci_suspend(struct device *dev)
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
if (exynos_ohci->otg)
exynos_ohci->otg->set_host(exynos_ohci->otg,
&exynos_ohci->hcd->self);
exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
exynos_ohci_phy_disable(exynos_ohci);
exynos_ohci_phy_disable(pdev);
clk_disable_unprepare(exynos_ohci->clk);
@ -286,16 +225,16 @@ fail:
static int exynos_ohci_resume(struct device *dev)
{
struct exynos_ohci_hcd *exynos_ohci = dev_get_drvdata(dev);
struct usb_hcd *hcd = exynos_ohci->hcd;
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
struct platform_device *pdev = to_platform_device(dev);
clk_prepare_enable(exynos_ohci->clk);
if (exynos_ohci->otg)
exynos_ohci->otg->set_host(exynos_ohci->otg,
&exynos_ohci->hcd->self);
exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
exynos_ohci_phy_enable(exynos_ohci);
exynos_ohci_phy_enable(pdev);
ohci_resume(hcd, false);
@ -306,6 +245,10 @@ static int exynos_ohci_resume(struct device *dev)
#define exynos_ohci_resume NULL
#endif
static const struct ohci_driver_overrides exynos_overrides __initconst = {
.extra_priv_size = sizeof(struct exynos_ohci_hcd),
};
static const struct dev_pm_ops exynos_ohci_pm_ops = {
.suspend = exynos_ohci_suspend,
.resume = exynos_ohci_resume,
@ -331,6 +274,23 @@ static struct platform_driver exynos_ohci_driver = {
.of_match_table = of_match_ptr(exynos_ohci_match),
}
};
static int __init ohci_exynos_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&exynos_ohci_hc_driver, &exynos_overrides);
return platform_driver_register(&exynos_ohci_driver);
}
module_init(ohci_exynos_init);
static void __exit ohci_exynos_cleanup(void)
{
platform_driver_unregister(&exynos_ohci_driver);
}
module_exit(ohci_exynos_cleanup);
MODULE_ALIAS("platform:exynos-ohci");
MODULE_AUTHOR("Jingoo Han <[email protected]>");
MODULE_LICENSE("GPL v2");

159
drivers/usb/host/ohci-hcd.c
View file

@ -1161,10 +1161,12 @@ void ohci_init_driver(struct hc_driver *drv,
/* Copy the generic table to drv and then apply the overrides */
*drv = ohci_hc_driver;
drv->product_desc = over->product_desc;
drv->hcd_priv_size += over->extra_priv_size;
if (over->reset)
drv->reset = over->reset;
if (over) {
drv->product_desc = over->product_desc;
drv->hcd_priv_size += over->extra_priv_size;
if (over->reset)
drv->reset = over->reset;
}
}
EXPORT_SYMBOL_GPL(ohci_init_driver);
@ -1179,46 +1181,6 @@ MODULE_LICENSE ("GPL");
#define SA1111_DRIVER ohci_hcd_sa1111_driver
#endif
#if defined(CONFIG_ARCH_S3C24XX) || defined(CONFIG_ARCH_S3C64XX)
#include "ohci-s3c2410.c"
#define S3C2410_PLATFORM_DRIVER ohci_hcd_s3c2410_driver
#endif
#ifdef CONFIG_USB_OHCI_EXYNOS
#include "ohci-exynos.c"
#define EXYNOS_PLATFORM_DRIVER exynos_ohci_driver
#endif
#ifdef CONFIG_USB_OHCI_HCD_OMAP1
#include "ohci-omap.c"
#define OMAP1_PLATFORM_DRIVER ohci_hcd_omap_driver
#endif
#ifdef CONFIG_USB_OHCI_HCD_OMAP3
#include "ohci-omap3.c"
#define OMAP3_PLATFORM_DRIVER ohci_hcd_omap3_driver
#endif
#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
#include "ohci-pxa27x.c"
#define PLATFORM_DRIVER ohci_hcd_pxa27x_driver
#endif
#ifdef CONFIG_ARCH_EP93XX
#include "ohci-ep93xx.c"
#define EP93XX_PLATFORM_DRIVER ohci_hcd_ep93xx_driver
#endif
#ifdef CONFIG_ARCH_AT91
#include "ohci-at91.c"
#define AT91_PLATFORM_DRIVER ohci_hcd_at91_driver
#endif
#ifdef CONFIG_ARCH_LPC32XX
#include "ohci-nxp.c"
#define NXP_PLATFORM_DRIVER usb_hcd_nxp_driver
#endif
#ifdef CONFIG_ARCH_DAVINCI_DA8XX
#include "ohci-da8xx.c"
#define DAVINCI_PLATFORM_DRIVER ohci_hcd_da8xx_driver
@ -1229,11 +1191,6 @@ MODULE_LICENSE ("GPL");
#define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver
#endif
#ifdef CONFIG_PLAT_SPEAR
#include "ohci-spear.c"
#define SPEAR_PLATFORM_DRIVER spear_ohci_hcd_driver
#endif
#ifdef CONFIG_PPC_PS3
#include "ohci-ps3.c"
#define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver
@ -1296,18 +1253,6 @@ static int __init ohci_hcd_mod_init(void)
goto error_platform;
#endif
#ifdef OMAP1_PLATFORM_DRIVER
retval = platform_driver_register(&OMAP1_PLATFORM_DRIVER);
if (retval < 0)
goto error_omap1_platform;
#endif
#ifdef OMAP3_PLATFORM_DRIVER
retval = platform_driver_register(&OMAP3_PLATFORM_DRIVER);
if (retval < 0)
goto error_omap3_platform;
#endif
#ifdef OF_PLATFORM_DRIVER
retval = platform_driver_register(&OF_PLATFORM_DRIVER);
if (retval < 0)
@ -1332,79 +1277,19 @@ static int __init ohci_hcd_mod_init(void)
goto error_tmio;
#endif
#ifdef S3C2410_PLATFORM_DRIVER
retval = platform_driver_register(&S3C2410_PLATFORM_DRIVER);
if (retval < 0)
goto error_s3c2410;
#endif
#ifdef EXYNOS_PLATFORM_DRIVER
retval = platform_driver_register(&EXYNOS_PLATFORM_DRIVER);
if (retval < 0)
goto error_exynos;
#endif
#ifdef EP93XX_PLATFORM_DRIVER
retval = platform_driver_register(&EP93XX_PLATFORM_DRIVER);
if (retval < 0)
goto error_ep93xx;
#endif
#ifdef AT91_PLATFORM_DRIVER
retval = platform_driver_register(&AT91_PLATFORM_DRIVER);
if (retval < 0)
goto error_at91;
#endif
#ifdef NXP_PLATFORM_DRIVER
retval = platform_driver_register(&NXP_PLATFORM_DRIVER);
if (retval < 0)
goto error_nxp;
#endif
#ifdef DAVINCI_PLATFORM_DRIVER
retval = platform_driver_register(&DAVINCI_PLATFORM_DRIVER);
if (retval < 0)
goto error_davinci;
#endif
#ifdef SPEAR_PLATFORM_DRIVER
retval = platform_driver_register(&SPEAR_PLATFORM_DRIVER);
if (retval < 0)
goto error_spear;
#endif
return retval;
/* Error path */
#ifdef SPEAR_PLATFORM_DRIVER
platform_driver_unregister(&SPEAR_PLATFORM_DRIVER);
error_spear:
#endif
#ifdef DAVINCI_PLATFORM_DRIVER
platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER);
error_davinci:
#endif
#ifdef NXP_PLATFORM_DRIVER
platform_driver_unregister(&NXP_PLATFORM_DRIVER);
error_nxp:
#endif
#ifdef AT91_PLATFORM_DRIVER
platform_driver_unregister(&AT91_PLATFORM_DRIVER);
error_at91:
#endif
#ifdef EP93XX_PLATFORM_DRIVER
platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
error_ep93xx:
#endif
#ifdef EXYNOS_PLATFORM_DRIVER
platform_driver_unregister(&EXYNOS_PLATFORM_DRIVER);
error_exynos:
#endif
#ifdef S3C2410_PLATFORM_DRIVER
platform_driver_unregister(&S3C2410_PLATFORM_DRIVER);
error_s3c2410:
#endif
#ifdef TMIO_OHCI_DRIVER
platform_driver_unregister(&TMIO_OHCI_DRIVER);
error_tmio:
@ -1421,14 +1306,6 @@ static int __init ohci_hcd_mod_init(void)
platform_driver_unregister(&OF_PLATFORM_DRIVER);
error_of_platform:
#endif
#ifdef OMAP3_PLATFORM_DRIVER
platform_driver_unregister(&OMAP3_PLATFORM_DRIVER);
error_omap3_platform:
#endif
#ifdef OMAP1_PLATFORM_DRIVER
platform_driver_unregister(&OMAP1_PLATFORM_DRIVER);
error_omap1_platform:
#endif
#ifdef PLATFORM_DRIVER
platform_driver_unregister(&PLATFORM_DRIVER);
error_platform:
@ -1450,27 +1327,9 @@ module_init(ohci_hcd_mod_init);
static void __exit ohci_hcd_mod_exit(void)
{
#ifdef SPEAR_PLATFORM_DRIVER
platform_driver_unregister(&SPEAR_PLATFORM_DRIVER);
#endif
#ifdef DAVINCI_PLATFORM_DRIVER
platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER);
#endif
#ifdef NXP_PLATFORM_DRIVER
platform_driver_unregister(&NXP_PLATFORM_DRIVER);
#endif
#ifdef AT91_PLATFORM_DRIVER
platform_driver_unregister(&AT91_PLATFORM_DRIVER);
#endif
#ifdef EP93XX_PLATFORM_DRIVER
platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
#endif
#ifdef EXYNOS_PLATFORM_DRIVER
platform_driver_unregister(&EXYNOS_PLATFORM_DRIVER);
#endif
#ifdef S3C2410_PLATFORM_DRIVER
platform_driver_unregister(&S3C2410_PLATFORM_DRIVER);
#endif
#ifdef TMIO_OHCI_DRIVER
platform_driver_unregister(&TMIO_OHCI_DRIVER);
#endif
@ -1483,12 +1342,6 @@ static void __exit ohci_hcd_mod_exit(void)
#ifdef OF_PLATFORM_DRIVER
platform_driver_unregister(&OF_PLATFORM_DRIVER);
#endif
#ifdef OMAP3_PLATFORM_DRIVER
platform_driver_unregister(&OMAP3_PLATFORM_DRIVER);
#endif
#ifdef OMAP1_PLATFORM_DRIVER
platform_driver_unregister(&OMAP1_PLATFORM_DRIVER);
#endif
#ifdef PLATFORM_DRIVER
platform_driver_unregister(&PLATFORM_DRIVER);
#endif

9
drivers/usb/host/ohci-hub.c
View file

@ -212,10 +212,11 @@ __acquires(ohci->lock)
/* Sometimes PCI D3 suspend trashes frame timings ... */
periodic_reinit (ohci);
/* the following code is executed with ohci->lock held and
* irqs disabled if and only if autostopped is true
/*
* The following code is executed with ohci->lock held and
* irqs disabled if and only if autostopped is true. This
* will cause sparse to warn about a "context imbalance".
*/
skip_resume:
/* interrupts might have been disabled */
ohci_writel (ohci, OHCI_INTR_INIT, &ohci->regs->intrenable);
@ -531,7 +532,7 @@ ohci_hub_descriptor (
temp |= 0x0010;
else if (rh & RH_A_OCPM) /* per-port overcurrent reporting? */
temp |= 0x0008;
desc->wHubCharacteristics = (__force __u16)cpu_to_hc16(ohci, temp);
desc->wHubCharacteristics = cpu_to_le16(temp);
/* ports removable, and usb 1.0 legacy PortPwrCtrlMask */
rh = roothub_b (ohci);

123
drivers/usb/host/ohci-nxp.c
View file

@ -19,10 +19,19 @@
* or implied.
*/
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/usb/isp1301.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include "ohci.h"
#include <mach/hardware.h>
#include <asm/mach-types.h>
@ -57,6 +66,11 @@
#define start_int_umask(irq)
#endif
#define DRIVER_DESC "OHCI NXP driver"
static const char hcd_name[] = "ohci-nxp";
static struct hc_driver __read_mostly ohci_nxp_hc_driver;
static struct i2c_client *isp1301_i2c_client;
extern int usb_disabled(void);
@ -132,14 +146,14 @@ static inline void isp1301_vbus_off(void)
OTG1_VBUS_DRV);
}
static void nxp_start_hc(void)
static void ohci_nxp_start_hc(void)
{
unsigned long tmp = __raw_readl(USB_OTG_STAT_CONTROL) | HOST_EN;
__raw_writel(tmp, USB_OTG_STAT_CONTROL);
isp1301_vbus_on();
}
static void nxp_stop_hc(void)
static void ohci_nxp_stop_hc(void)
{
unsigned long tmp;
isp1301_vbus_off();
@ -147,68 +161,9 @@ static void nxp_stop_hc(void)
__raw_writel(tmp, USB_OTG_STAT_CONTROL);
}
static int ohci_nxp_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
if ((ret = ohci_init(ohci)) < 0)
return ret;
if ((ret = ohci_run(ohci)) < 0) {
dev_err(hcd->self.controller, "can't start\n");
ohci_stop(hcd);
return ret;
}
return 0;
}
static const struct hc_driver ohci_nxp_hc_driver = {
.description = hcd_name,
.product_desc = "nxp OHCI",
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* basic lifecycle operations
*/
.start = ohci_nxp_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
static int usb_hcd_nxp_probe(struct platform_device *pdev)
static int ohci_hcd_nxp_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd = 0;
struct ohci_hcd *ohci;
const struct hc_driver *driver = &ohci_nxp_hc_driver;
struct resource *res;
int ret = 0, irq;
@ -313,17 +268,15 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
goto fail_resource;
}
nxp_start_hc();
ohci_nxp_start_hc();
platform_set_drvdata(pdev, hcd);
ohci = hcd_to_ohci(hcd);
ohci_hcd_init(ohci);
dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq);
ret = usb_add_hcd(hcd, irq, 0);
if (ret == 0)
return ret;
nxp_stop_hc();
ohci_nxp_stop_hc();
fail_resource:
usb_put_hcd(hcd);
fail_hcd:
@ -345,12 +298,12 @@ fail_disable:
return ret;
}
static int usb_hcd_nxp_remove(struct platform_device *pdev)
static int ohci_hcd_nxp_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
nxp_stop_hc();
ohci_nxp_stop_hc();
usb_put_hcd(hcd);
clk_disable(usb_pll_clk);
clk_put(usb_pll_clk);
@ -366,20 +319,40 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
MODULE_ALIAS("platform:usb-ohci");
#ifdef CONFIG_OF
static const struct of_device_id usb_hcd_nxp_match[] = {
static const struct of_device_id ohci_hcd_nxp_match[] = {
{ .compatible = "nxp,ohci-nxp" },
{},
};
MODULE_DEVICE_TABLE(of, usb_hcd_nxp_match);
MODULE_DEVICE_TABLE(of, ohci_hcd_nxp_match);
#endif
static struct platform_driver usb_hcd_nxp_driver = {
static struct platform_driver ohci_hcd_nxp_driver = {
.driver = {
.name = "usb-ohci",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(usb_hcd_nxp_match),
.of_match_table = of_match_ptr(ohci_hcd_nxp_match),
},
.probe = usb_hcd_nxp_probe,
.remove = usb_hcd_nxp_remove,
.probe = ohci_hcd_nxp_probe,
.remove = ohci_hcd_nxp_remove,
};
static int __init ohci_nxp_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&ohci_nxp_hc_driver, NULL);
return platform_driver_register(&ohci_hcd_nxp_driver);
}
module_init(ohci_nxp_init);
static void __exit ohci_nxp_cleanup(void)
{
platform_driver_unregister(&ohci_hcd_nxp_driver);
}
module_exit(ohci_nxp_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL v2");

169
drivers/usb/host/ohci-omap.c
View file

@ -14,12 +14,21 @@
* This file is licenced under the GPL.
*/
#include <linux/signal.h>
#include <linux/jiffies.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb/otg.h>
#include <linux/platform_device.h>
#include <linux/signal.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include "ohci.h"
#include <asm/io.h>
#include <asm/mach-types.h>
@ -42,10 +51,7 @@
#define OMAP1510_LB_MMU_RAM_H 0xfffec234
#define OMAP1510_LB_MMU_RAM_L 0xfffec238
#ifndef CONFIG_ARCH_OMAP
#error "This file is OMAP bus glue. CONFIG_OMAP must be defined."
#endif
#define DRIVER_DESC "OHCI OMAP driver"
#ifdef CONFIG_TPS65010
#include <linux/i2c/tps65010.h>
@ -68,8 +74,9 @@ extern int ocpi_enable(void);
static struct clk *usb_host_ck;
static struct clk *usb_dc_ck;
static int host_enabled;
static int host_initialized;
static const char hcd_name[] = "ohci-omap";
static struct hc_driver __read_mostly ohci_omap_hc_driver;
static void omap_ohci_clock_power(int on)
{
@ -188,7 +195,7 @@ static void start_hnp(struct ohci_hcd *ohci)
/*-------------------------------------------------------------------------*/
static int ohci_omap_init(struct usb_hcd *hcd)
static int ohci_omap_reset(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct omap_usb_config *config = dev_get_platdata(hcd->self.controller);
@ -198,9 +205,9 @@ static int ohci_omap_init(struct usb_hcd *hcd)
dev_dbg(hcd->self.controller, "starting USB Controller\n");
if (config->otg) {
ohci_to_hcd(ohci)->self.otg_port = config->otg;
hcd->self.otg_port = config->otg;
/* default/minimum OTG power budget: 8 mA */
ohci_to_hcd(ohci)->power_budget = 8;
hcd->power_budget = 8;
}
/* boards can use OTG transceivers in non-OTG modes */
@ -238,9 +245,15 @@ static int ohci_omap_init(struct usb_hcd *hcd)
omap_1510_local_bus_init();
}
if ((ret = ohci_init(ohci)) < 0)
ret = ohci_setup(hcd);
if (ret < 0)
return ret;
if (config->otg || config->rwc) {
ohci->hc_control = OHCI_CTRL_RWC;
writel(OHCI_CTRL_RWC, &ohci->regs->control);
}
/* board-specific power switching and overcurrent support */
if (machine_is_omap_osk() || machine_is_omap_innovator()) {
u32 rh = roothub_a (ohci);
@ -281,14 +294,6 @@ static int ohci_omap_init(struct usb_hcd *hcd)
return 0;
}
static void ohci_omap_stop(struct usb_hcd *hcd)
{
dev_dbg(hcd->self.controller, "stopping USB Controller\n");
ohci_stop(hcd);
omap_ohci_clock_power(0);
}
/*-------------------------------------------------------------------------*/
/**
@ -304,7 +309,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
{
int retval, irq;
struct usb_hcd *hcd = 0;
struct ohci_hcd *ohci;
if (pdev->num_resources != 2) {
printk(KERN_ERR "hcd probe: invalid num_resources: %i\n",
@ -354,12 +358,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
goto err2;
}
ohci = hcd_to_ohci(hcd);
ohci_hcd_init(ohci);
host_initialized = 0;
host_enabled = 1;
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
retval = -ENXIO;
@ -369,11 +367,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
if (retval)
goto err3;
host_initialized = 1;
if (!host_enabled)
omap_ohci_clock_power(0);
return 0;
err3:
iounmap(hcd->regs);
@ -402,7 +395,9 @@ err0:
static inline void
usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
dev_dbg(hcd->self.controller, "stopping USB Controller\n");
usb_remove_hcd(hcd);
omap_ohci_clock_power(0);
if (!IS_ERR_OR_NULL(hcd->phy)) {
(void) otg_set_host(hcd->phy->otg, 0);
usb_put_phy(hcd->phy);
@ -418,76 +413,6 @@ usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
/*-------------------------------------------------------------------------*/
static int
ohci_omap_start (struct usb_hcd *hcd)
{
struct omap_usb_config *config;
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
if (!host_enabled)
return 0;
config = dev_get_platdata(hcd->self.controller);
if (config->otg || config->rwc) {
ohci->hc_control = OHCI_CTRL_RWC;
writel(OHCI_CTRL_RWC, &ohci->regs->control);
}
if ((ret = ohci_run (ohci)) < 0) {
dev_err(hcd->self.controller, "can't start\n");
ohci_stop (hcd);
return ret;
}
return 0;
}
/*-------------------------------------------------------------------------*/
static const struct hc_driver ohci_omap_hc_driver = {
.description = hcd_name,
.product_desc = "OMAP OHCI",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.reset = ohci_omap_init,
.start = ohci_omap_start,
.stop = ohci_omap_stop,
.shutdown = ohci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
/*-------------------------------------------------------------------------*/
static int ohci_hcd_omap_drv_probe(struct platform_device *dev)
{
return usb_hcd_omap_probe(&ohci_omap_hc_driver, dev);
@ -506,16 +431,23 @@ static int ohci_hcd_omap_drv_remove(struct platform_device *dev)
#ifdef CONFIG_PM
static int ohci_omap_suspend(struct platform_device *dev, pm_message_t message)
static int ohci_omap_suspend(struct platform_device *pdev, pm_message_t message)
{
struct ohci_hcd *ohci = hcd_to_ohci(platform_get_drvdata(dev));
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
bool do_wakeup = device_may_wakeup(&pdev->dev);
int ret;
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
ret = ohci_suspend(hcd, do_wakeup);
if (ret)
return ret;
omap_ohci_clock_power(0);
return 0;
return ret;
}
static int ohci_omap_resume(struct platform_device *dev)
@ -553,4 +485,29 @@ static struct platform_driver ohci_hcd_omap_driver = {
},
};
static const struct ohci_driver_overrides omap_overrides __initconst = {
.product_desc = "OMAP OHCI",
.reset = ohci_omap_reset
};
static int __init ohci_omap_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&ohci_omap_hc_driver, &omap_overrides);
return platform_driver_register(&ohci_hcd_omap_driver);
}
module_init(ohci_omap_init);
static void __exit ohci_omap_cleanup(void)
{
platform_driver_unregister(&ohci_hcd_omap_driver);
}
module_exit(ohci_omap_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_ALIAS("platform:ohci");
MODULE_LICENSE("GPL");

118
drivers/usb/host/ohci-omap3.c
View file

@ -29,90 +29,22 @@
* - add kernel-doc
*/
#include <linux/dma-mapping.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/usb/otg.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/dma-mapping.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
/*-------------------------------------------------------------------------*/
#include "ohci.h"
static int ohci_omap3_init(struct usb_hcd *hcd)
{
dev_dbg(hcd->self.controller, "starting OHCI controller\n");
#define DRIVER_DESC "OHCI OMAP3 driver"
return ohci_init(hcd_to_ohci(hcd));
}
/*-------------------------------------------------------------------------*/
static int ohci_omap3_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
/*
* RemoteWakeupConnected has to be set explicitly before
* calling ohci_run. The reset value of RWC is 0.
*/
ohci->hc_control = OHCI_CTRL_RWC;
writel(OHCI_CTRL_RWC, &ohci->regs->control);
ret = ohci_run(ohci);
if (ret < 0) {
dev_err(hcd->self.controller, "can't start\n");
ohci_stop(hcd);
}
return ret;
}
/*-------------------------------------------------------------------------*/
static const struct hc_driver ohci_omap3_hc_driver = {
.description = hcd_name,
.product_desc = "OMAP3 OHCI Host Controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.reset = ohci_omap3_init,
.start = ohci_omap3_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
/*-------------------------------------------------------------------------*/
static const char hcd_name[] = "ohci-omap3";
static struct hc_driver __read_mostly ohci_omap3_hc_driver;
/*
* configure so an HC device and id are always provided
@ -129,6 +61,7 @@ static const struct hc_driver ohci_omap3_hc_driver = {
static int ohci_hcd_omap3_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ohci_hcd *ohci;
struct usb_hcd *hcd = NULL;
void __iomem *regs = NULL;
struct resource *res;
@ -185,7 +118,12 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
ohci_hcd_init(hcd_to_ohci(hcd));
ohci = hcd_to_ohci(hcd);
/*
* RemoteWakeupConnected has to be set explicitly before
* calling ohci_run. The reset value of RWC is 0.
*/
ohci->hc_control = OHCI_CTRL_RWC;
ret = usb_add_hcd(hcd, irq, 0);
if (ret) {
@ -248,5 +186,25 @@ static struct platform_driver ohci_hcd_omap3_driver = {
},
};
static int __init ohci_omap3_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&ohci_omap3_hc_driver, NULL);
return platform_driver_register(&ohci_hcd_omap3_driver);
}
module_init(ohci_omap3_init);
static void __exit ohci_omap3_cleanup(void)
{
platform_driver_unregister(&ohci_hcd_omap3_driver);
}
module_exit(ohci_omap3_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_ALIAS("platform:ohci-omap3");
MODULE_AUTHOR("Anand Gadiyar <[email protected]>");
MODULE_LICENSE("GPL");

15
drivers/usb/host/ohci-pci.c
View file

@ -150,28 +150,16 @@ static int ohci_quirk_nec(struct usb_hcd *hcd)
static int ohci_quirk_amd700(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct pci_dev *amd_smbus_dev;
u8 rev;
if (usb_amd_find_chipset_info())
ohci->flags |= OHCI_QUIRK_AMD_PLL;
amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI,
PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL);
if (!amd_smbus_dev)
return 0;
rev = amd_smbus_dev->revision;
/* SB800 needs pre-fetch fix */
if ((rev >= 0x40) && (rev <= 0x4f)) {
if (usb_amd_prefetch_quirk()) {
ohci->flags |= OHCI_QUIRK_AMD_PREFETCH;
ohci_dbg(ohci, "enabled AMD prefetch quirk\n");
}
pci_dev_put(amd_smbus_dev);
amd_smbus_dev = NULL;
return 0;
}
@ -323,3 +311,4 @@ module_exit(ohci_pci_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_SOFTDEP("pre: ehci_pci");

11
drivers/usb/host/ohci-platform.c
View file

@ -139,14 +139,21 @@ static int ohci_platform_remove(struct platform_device *dev)
static int ohci_platform_suspend(struct device *dev)
{
struct usb_ohci_pdata *pdata = dev_get_platdata(dev);
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct usb_ohci_pdata *pdata = dev->platform_data;
struct platform_device *pdev =
container_of(dev, struct platform_device, dev);
bool do_wakeup = device_may_wakeup(dev);
int ret;
ret = ohci_suspend(hcd, do_wakeup);
if (ret)
return ret;
if (pdata->power_suspend)
pdata->power_suspend(pdev);
return 0;
return ret;
}
static int ohci_platform_resume(struct device *dev)

249
drivers/usb/host/ohci-pxa27x.c
View file

@ -19,15 +19,26 @@
* This file is licenced under the GPL.
*/
#include <linux/device.h>
#include <linux/signal.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/of_gpio.h>
#include <mach/hardware.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <linux/platform_data/usb-pxa3xx-ulpi.h>
#include <linux/platform_device.h>
#include <linux/signal.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include <linux/usb/otg.h>
#include <mach/hardware.h>
#include "ohci.h"
#define DRIVER_DESC "OHCI PXA27x/PXA3x driver"
/*
* UHC: USB Host Controller (OHCI-like) register definitions
@ -101,16 +112,16 @@
#define PXA_UHC_MAX_PORTNUM 3
struct pxa27x_ohci {
/* must be 1st member here for hcd_to_ohci() to work */
struct ohci_hcd ohci;
static const char hcd_name[] = "ohci-pxa27x";
struct device *dev;
static struct hc_driver __read_mostly ohci_pxa27x_hc_driver;
struct pxa27x_ohci {
struct clk *clk;
void __iomem *mmio_base;
};
#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)hcd_to_ohci(hcd)
#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)(hcd_to_ohci(hcd)->priv)
/*
PMM_NPS_MODE -- PMM Non-power switching mode
@ -122,10 +133,10 @@ struct pxa27x_ohci {
PMM_PERPORT_MODE -- PMM per port switching mode
Ports are powered individually.
*/
static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode)
static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *pxa_ohci, int mode)
{
uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA);
uint32_t uhcrhdb = __raw_readl(ohci->mmio_base + UHCRHDB);
uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA);
uint32_t uhcrhdb = __raw_readl(pxa_ohci->mmio_base + UHCRHDB);
switch (mode) {
case PMM_NPS_MODE:
@ -149,20 +160,18 @@ static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode)
uhcrhda |= RH_A_NPS;
}
__raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA);
__raw_writel(uhcrhdb, ohci->mmio_base + UHCRHDB);
__raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA);
__raw_writel(uhcrhdb, pxa_ohci->mmio_base + UHCRHDB);
return 0;
}
extern int usb_disabled(void);
/*-------------------------------------------------------------------------*/
static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci,
static inline void pxa27x_setup_hc(struct pxa27x_ohci *pxa_ohci,
struct pxaohci_platform_data *inf)
{
uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR);
uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA);
uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR);
uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA);
if (inf->flags & ENABLE_PORT1)
uhchr &= ~UHCHR_SSEP1;
@ -194,17 +203,17 @@ static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci,
uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2);
}
__raw_writel(uhchr, ohci->mmio_base + UHCHR);
__raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA);
__raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
__raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA);
}
static inline void pxa27x_reset_hc(struct pxa27x_ohci *ohci)
static inline void pxa27x_reset_hc(struct pxa27x_ohci *pxa_ohci)
{
uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR);
uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR);
__raw_writel(uhchr | UHCHR_FHR, ohci->mmio_base + UHCHR);
__raw_writel(uhchr | UHCHR_FHR, pxa_ohci->mmio_base + UHCHR);
udelay(11);
__raw_writel(uhchr & ~UHCHR_FHR, ohci->mmio_base + UHCHR);
__raw_writel(uhchr & ~UHCHR_FHR, pxa_ohci->mmio_base + UHCHR);
}
#ifdef CONFIG_PXA27x
@ -213,25 +222,26 @@ extern void pxa27x_clear_otgph(void);
#define pxa27x_clear_otgph() do {} while (0)
#endif
static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev)
static int pxa27x_start_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev)
{
int retval = 0;
struct pxaohci_platform_data *inf;
uint32_t uhchr;
struct usb_hcd *hcd = dev_get_drvdata(dev);
inf = dev_get_platdata(dev);
clk_prepare_enable(ohci->clk);
clk_prepare_enable(pxa_ohci->clk);
pxa27x_reset_hc(ohci);
pxa27x_reset_hc(pxa_ohci);
uhchr = __raw_readl(ohci->mmio_base + UHCHR) | UHCHR_FSBIR;
__raw_writel(uhchr, ohci->mmio_base + UHCHR);
uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) | UHCHR_FSBIR;
__raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
while (__raw_readl(ohci->mmio_base + UHCHR) & UHCHR_FSBIR)
while (__raw_readl(pxa_ohci->mmio_base + UHCHR) & UHCHR_FSBIR)
cpu_relax();
pxa27x_setup_hc(ohci, inf);
pxa27x_setup_hc(pxa_ohci, inf);
if (inf->init)
retval = inf->init(dev);
@ -240,38 +250,39 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev)
return retval;
if (cpu_is_pxa3xx())
pxa3xx_u2d_start_hc(&ohci_to_hcd(&ohci->ohci)->self);
pxa3xx_u2d_start_hc(&hcd->self);
uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE;
__raw_writel(uhchr, ohci->mmio_base + UHCHR);
__raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, ohci->mmio_base + UHCHIE);
uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) & ~UHCHR_SSE;
__raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
__raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, pxa_ohci->mmio_base + UHCHIE);
/* Clear any OTG Pin Hold */
pxa27x_clear_otgph();
return 0;
}
static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev)
static void pxa27x_stop_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev)
{
struct pxaohci_platform_data *inf;
struct usb_hcd *hcd = dev_get_drvdata(dev);
uint32_t uhccoms;
inf = dev_get_platdata(dev);
if (cpu_is_pxa3xx())
pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self);
pxa3xx_u2d_stop_hc(&hcd->self);
if (inf->exit)
inf->exit(dev);
pxa27x_reset_hc(ohci);
pxa27x_reset_hc(pxa_ohci);
/* Host Controller Reset */
uhccoms = __raw_readl(ohci->mmio_base + UHCCOMS) | 0x01;
__raw_writel(uhccoms, ohci->mmio_base + UHCCOMS);
uhccoms = __raw_readl(pxa_ohci->mmio_base + UHCCOMS) | 0x01;
__raw_writel(uhccoms, pxa_ohci->mmio_base + UHCCOMS);
udelay(10);
clk_disable_unprepare(ohci->clk);
clk_disable_unprepare(pxa_ohci->clk);
}
#ifdef CONFIG_OF
@ -356,7 +367,8 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
int retval, irq;
struct usb_hcd *hcd;
struct pxaohci_platform_data *inf;
struct pxa27x_ohci *ohci;
struct pxa27x_ohci *pxa_ohci;
struct ohci_hcd *ohci;
struct resource *r;
struct clk *usb_clk;
@ -409,29 +421,31 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
}
/* initialize "struct pxa27x_ohci" */
ohci = (struct pxa27x_ohci *)hcd_to_ohci(hcd);
ohci->dev = &pdev->dev;
ohci->clk = usb_clk;
ohci->mmio_base = (void __iomem *)hcd->regs;
pxa_ohci = to_pxa27x_ohci(hcd);
pxa_ohci->clk = usb_clk;
pxa_ohci->mmio_base = (void __iomem *)hcd->regs;
if ((retval = pxa27x_start_hc(ohci, &pdev->dev)) < 0) {
retval = pxa27x_start_hc(pxa_ohci, &pdev->dev);
if (retval < 0) {
pr_debug("pxa27x_start_hc failed");
goto err3;
}
/* Select Power Management Mode */
pxa27x_ohci_select_pmm(ohci, inf->port_mode);
pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode);
if (inf->power_budget)
hcd->power_budget = inf->power_budget;
ohci_hcd_init(hcd_to_ohci(hcd));
/* The value of NDP in roothub_a is incorrect on this hardware */
ohci = hcd_to_ohci(hcd);
ohci->num_ports = 3;
retval = usb_add_hcd(hcd, irq, 0);
if (retval == 0)
return retval;
pxa27x_stop_hc(ohci, &pdev->dev);
pxa27x_stop_hc(pxa_ohci, &pdev->dev);
err3:
iounmap(hcd->regs);
err2:
@ -459,88 +473,18 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
*/
void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd);
struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
usb_remove_hcd(hcd);
pxa27x_stop_hc(ohci, &pdev->dev);
pxa27x_stop_hc(pxa_ohci, &pdev->dev);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
clk_put(pxa_ohci->clk);
usb_put_hcd(hcd);
clk_put(ohci->clk);
}
/*-------------------------------------------------------------------------*/
static int
ohci_pxa27x_start (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci);
/* The value of NDP in roothub_a is incorrect on this hardware */
ohci->num_ports = 3;
if ((ret = ohci_init(ohci)) < 0)
return ret;
if ((ret = ohci_run (ohci)) < 0) {
dev_err(hcd->self.controller, "can't start %s",
hcd->self.bus_name);
ohci_stop (hcd);
return ret;
}
return 0;
}
/*-------------------------------------------------------------------------*/
static const struct hc_driver ohci_pxa27x_hc_driver = {
.description = hcd_name,
.product_desc = "PXA27x OHCI",
.hcd_priv_size = sizeof(struct pxa27x_ohci),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.start = ohci_pxa27x_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
/*-------------------------------------------------------------------------*/
static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev)
{
pr_debug ("In ohci_hcd_pxa27x_drv_probe");
@ -563,32 +507,42 @@ static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev)
static int ohci_hcd_pxa27x_drv_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd);
struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
bool do_wakeup = device_may_wakeup(dev);
int ret;
if (time_before(jiffies, ohci->ohci.next_statechange))
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->ohci.next_statechange = jiffies;
ohci->next_statechange = jiffies;
pxa27x_stop_hc(ohci, dev);
return 0;
ret = ohci_suspend(hcd, do_wakeup);
if (ret)
return ret;
pxa27x_stop_hc(pxa_ohci, dev);
return ret;
}
static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd);
struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
struct pxaohci_platform_data *inf = dev_get_platdata(dev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int status;
if (time_before(jiffies, ohci->ohci.next_statechange))
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->ohci.next_statechange = jiffies;
ohci->next_statechange = jiffies;
if ((status = pxa27x_start_hc(ohci, dev)) < 0)
status = pxa27x_start_hc(pxa_ohci, dev);
if (status < 0)
return status;
/* Select Power Management Mode */
pxa27x_ohci_select_pmm(ohci, inf->port_mode);
pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode);
ohci_resume(hcd, false);
return 0;
@ -600,9 +554,6 @@ static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = {
};
#endif
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:pxa27x-ohci");
static struct platform_driver ohci_hcd_pxa27x_driver = {
.probe = ohci_hcd_pxa27x_drv_probe,
.remove = ohci_hcd_pxa27x_drv_remove,
@ -617,3 +568,27 @@ static struct platform_driver ohci_hcd_pxa27x_driver = {
},
};
static const struct ohci_driver_overrides pxa27x_overrides __initconst = {
.extra_priv_size = sizeof(struct pxa27x_ohci),
};
static int __init ohci_pxa27x_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&ohci_pxa27x_hc_driver, &pxa27x_overrides);
return platform_driver_register(&ohci_hcd_pxa27x_driver);
}
module_init(ohci_pxa27x_init);
static void __exit ohci_pxa27x_cleanup(void)
{
platform_driver_unregister(&ohci_hcd_pxa27x_driver);
}
module_exit(ohci_pxa27x_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa27x-ohci");

128
drivers/usb/host/ohci-s3c2410.c
View file

@ -19,19 +19,36 @@
* This file is licenced under the GPL.
*/
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/platform_data/usb-ohci-s3c2410.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include "ohci.h"
#define valid_port(idx) ((idx) == 1 || (idx) == 2)
/* clock device associated with the hcd */
#define DRIVER_DESC "OHCI S3C2410 driver"
static const char hcd_name[] = "ohci-s3c2410";
static struct clk *clk;
static struct clk *usb_clk;
/* forward definitions */
static int (*orig_ohci_hub_control)(struct usb_hcd *hcd, u16 typeReq,
u16 wValue, u16 wIndex, char *buf, u16 wLength);
static int (*orig_ohci_hub_status_data)(struct usb_hcd *hcd, char *buf);
static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc);
/* conversion functions */
@ -93,7 +110,7 @@ ohci_s3c2410_hub_status_data(struct usb_hcd *hcd, char *buf)
int orig;
int portno;
orig = ohci_hub_status_data(hcd, buf);
orig = orig_ohci_hub_status_data(hcd, buf);
if (info == NULL)
return orig;
@ -164,7 +181,7 @@ static int ohci_s3c2410_hub_control(
* process the request straight away and exit */
if (info == NULL) {
ret = ohci_hub_control(hcd, typeReq, wValue,
ret = orig_ohci_hub_control(hcd, typeReq, wValue,
wIndex, buf, wLength);
goto out;
}
@ -214,7 +231,7 @@ static int ohci_s3c2410_hub_control(
break;
}
ret = ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
ret = orig_ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
if (ret)
goto out;
@ -374,8 +391,6 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver,
s3c2410_start_hc(dev, hcd);
ohci_hcd_init(hcd_to_ohci(hcd));
retval = usb_add_hcd(hcd, dev->resource[1].start, 0);
if (retval != 0)
goto err_ioremap;
@ -392,71 +407,7 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver,
/*-------------------------------------------------------------------------*/
static int
ohci_s3c2410_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
ret = ohci_init(ohci);
if (ret < 0)
return ret;
ret = ohci_run(ohci);
if (ret < 0) {
dev_err(hcd->self.controller, "can't start %s\n",
hcd->self.bus_name);
ohci_stop(hcd);
return ret;
}
return 0;
}
static const struct hc_driver ohci_s3c2410_hc_driver = {
.description = hcd_name,
.product_desc = "S3C24XX OHCI",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.start = ohci_s3c2410_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_s3c2410_hub_status_data,
.hub_control = ohci_s3c2410_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
/* device driver */
static struct hc_driver __read_mostly ohci_s3c2410_hc_driver;
static int ohci_hcd_s3c2410_drv_probe(struct platform_device *pdev)
{
@ -533,4 +484,39 @@ static struct platform_driver ohci_hcd_s3c2410_driver = {
},
};
static int __init ohci_s3c2410_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&ohci_s3c2410_hc_driver, NULL);
/*
* The Samsung HW has some unusual quirks, which require
* Sumsung-specific workarounds. We override certain hc_driver
* functions here to achieve that. We explicitly do not enhance
* ohci_driver_overrides to allow this more easily, since this
* is an unusual case, and we don't want to encourage others to
* override these functions by making it too easy.
*/
orig_ohci_hub_control = ohci_s3c2410_hc_driver.hub_control;
orig_ohci_hub_status_data = ohci_s3c2410_hc_driver.hub_status_data;
ohci_s3c2410_hc_driver.hub_status_data = ohci_s3c2410_hub_status_data;
ohci_s3c2410_hc_driver.hub_control = ohci_s3c2410_hub_control;
return platform_driver_register(&ohci_hcd_s3c2410_driver);
}
module_init(ohci_s3c2410_init);
static void __exit ohci_s3c2410_cleanup(void)
{
platform_driver_unregister(&ohci_hcd_s3c2410_driver);
}
module_exit(ohci_s3c2410_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:s3c2410-ohci");

11
drivers/usb/host/ohci-sm501.c
View file

@ -216,14 +216,21 @@ static int ohci_hcd_sm501_drv_remove(struct platform_device *pdev)
static int ohci_sm501_suspend(struct platform_device *pdev, pm_message_t msg)
{
struct device *dev = &pdev->dev;
struct ohci_hcd *ohci = hcd_to_ohci(platform_get_drvdata(pdev));
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
bool do_wakeup = device_may_wakeup(dev);
int ret;
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
ret = ohci_suspend(hcd, do_wakeup);
if (ret)
return ret;
sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 0);
return 0;
return ret;
}
static int ohci_sm501_resume(struct platform_device *pdev)

140
drivers/usb/host/ohci-spear.c
View file

@ -11,92 +11,37 @@
* warranty of any kind, whether express or implied.
*/
#include <linux/signal.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/signal.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include "ohci.h"
#define DRIVER_DESC "OHCI SPEAr driver"
static const char hcd_name[] = "SPEAr-ohci";
struct spear_ohci {
struct ohci_hcd ohci;
struct clk *clk;
};
#define to_spear_ohci(hcd) (struct spear_ohci *)hcd_to_ohci(hcd)
#define to_spear_ohci(hcd) (struct spear_ohci *)(hcd_to_ohci(hcd)->priv)
static void spear_start_ohci(struct spear_ohci *ohci)
{
clk_prepare_enable(ohci->clk);
}
static void spear_stop_ohci(struct spear_ohci *ohci)
{
clk_disable_unprepare(ohci->clk);
}
static int ohci_spear_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
ret = ohci_init(ohci);
if (ret < 0)
return ret;
ohci->regs = hcd->regs;
ret = ohci_run(ohci);
if (ret < 0) {
dev_err(hcd->self.controller, "can't start\n");
ohci_stop(hcd);
return ret;
}
create_debug_files(ohci);
#ifdef DEBUG
ohci_dump(ohci, 1);
#endif
return 0;
}
static const struct hc_driver ohci_spear_hc_driver = {
.description = hcd_name,
.product_desc = "SPEAr OHCI",
.hcd_priv_size = sizeof(struct spear_ohci),
/* generic hardware linkage */
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/* basic lifecycle operations */
.start = ohci_spear_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
/* managing i/o requests and associated device resources */
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/* scheduling support */
.get_frame_number = ohci_get_frame,
/* root hub support */
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
.start_port_reset = ohci_start_port_reset,
};
static struct hc_driver __read_mostly ohci_spear_hc_driver;
static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
{
const struct hc_driver *driver = &ohci_spear_hc_driver;
struct ohci_hcd *ohci;
struct usb_hcd *hcd = NULL;
struct clk *usbh_clk;
struct spear_ohci *ohci_p;
struct spear_ohci *sohci_p;
struct resource *res;
int retval, irq;
@ -151,16 +96,18 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
goto err_put_hcd;
}
ohci_p = (struct spear_ohci *)hcd_to_ohci(hcd);
ohci_p->clk = usbh_clk;
spear_start_ohci(ohci_p);
ohci_hcd_init(hcd_to_ohci(hcd));
sohci_p = to_spear_ohci(hcd);
sohci_p->clk = usbh_clk;
clk_prepare_enable(sohci_p->clk);
ohci = hcd_to_ohci(hcd);
retval = usb_add_hcd(hcd, platform_get_irq(pdev, 0), 0);
if (retval == 0)
return retval;
spear_stop_ohci(ohci_p);
clk_disable_unprepare(sohci_p->clk);
err_put_hcd:
usb_put_hcd(hcd);
fail:
@ -172,11 +119,11 @@ fail:
static int spear_ohci_hcd_drv_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct spear_ohci *ohci_p = to_spear_ohci(hcd);
struct spear_ohci *sohci_p = to_spear_ohci(hcd);
usb_remove_hcd(hcd);
if (ohci_p->clk)
spear_stop_ohci(ohci_p);
if (sohci_p->clk)
clk_disable_unprepare(sohci_p->clk);
usb_put_hcd(hcd);
return 0;
@ -188,13 +135,14 @@ static int spear_ohci_hcd_drv_suspend(struct platform_device *dev,
{
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct spear_ohci *ohci_p = to_spear_ohci(hcd);
struct spear_ohci *sohci_p = to_spear_ohci(hcd);
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
spear_stop_ohci(ohci_p);
clk_disable_unprepare(sohci_p->clk);
return 0;
}
@ -202,13 +150,13 @@ static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
{
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct spear_ohci *ohci_p = to_spear_ohci(hcd);
struct spear_ohci *sohci_p = to_spear_ohci(hcd);
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
spear_start_ohci(ohci_p);
clk_prepare_enable(sohci_p->clk);
ohci_resume(hcd, false);
return 0;
}
@ -234,4 +182,28 @@ static struct platform_driver spear_ohci_hcd_driver = {
},
};
static const struct ohci_driver_overrides spear_overrides __initconst = {
.extra_priv_size = sizeof(struct spear_ohci),
};
static int __init ohci_spear_init(void)
{
if (usb_disabled())
return -ENODEV;
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&ohci_spear_hc_driver, &spear_overrides);
return platform_driver_register(&spear_ohci_hcd_driver);
}
module_init(ohci_spear_init);
static void __exit ohci_spear_cleanup(void)
{
platform_driver_unregister(&spear_ohci_hcd_driver);
}
module_exit(ohci_spear_cleanup);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR("Deepak Sikri");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:spear-ohci");

137
drivers/usb/host/pci-quirks.c
View file

@ -79,11 +79,30 @@
#define USB_INTEL_USB3_PSSEN 0xD8
#define USB_INTEL_USB3PRM 0xDC
/*
* amd_chipset_gen values represent AMD different chipset generations
*/
enum amd_chipset_gen {
NOT_AMD_CHIPSET = 0,
AMD_CHIPSET_SB600,
AMD_CHIPSET_SB700,
AMD_CHIPSET_SB800,
AMD_CHIPSET_HUDSON2,
AMD_CHIPSET_BOLTON,
AMD_CHIPSET_YANGTZE,
AMD_CHIPSET_UNKNOWN,
};
struct amd_chipset_type {
enum amd_chipset_gen gen;
u8 rev;
};
static struct amd_chipset_info {
struct pci_dev *nb_dev;
struct pci_dev *smbus_dev;
int nb_type;
int sb_type;
struct amd_chipset_type sb_type;
int isoc_reqs;
int probe_count;
int probe_result;
@ -91,6 +110,51 @@ static struct amd_chipset_info {
static DEFINE_SPINLOCK(amd_lock);
/*
* amd_chipset_sb_type_init - initialize amd chipset southbridge type
*
* AMD FCH/SB generation and revision is identified by SMBus controller
* vendor, device and revision IDs.
*
* Returns: 1 if it is an AMD chipset, 0 otherwise.
*/
static int amd_chipset_sb_type_init(struct amd_chipset_info *pinfo)
{
u8 rev = 0;
pinfo->sb_type.gen = AMD_CHIPSET_UNKNOWN;
pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI,
PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL);
if (pinfo->smbus_dev) {
rev = pinfo->smbus_dev->revision;
if (rev >= 0x10 && rev <= 0x1f)
pinfo->sb_type.gen = AMD_CHIPSET_SB600;
else if (rev >= 0x30 && rev <= 0x3f)
pinfo->sb_type.gen = AMD_CHIPSET_SB700;
else if (rev >= 0x40 && rev <= 0x4f)
pinfo->sb_type.gen = AMD_CHIPSET_SB800;
} else {
pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
if (!pinfo->smbus_dev) {
pinfo->sb_type.gen = NOT_AMD_CHIPSET;
return 0;
}
rev = pinfo->smbus_dev->revision;
if (rev >= 0x11 && rev <= 0x14)
pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2;
else if (rev >= 0x15 && rev <= 0x18)
pinfo->sb_type.gen = AMD_CHIPSET_BOLTON;
else if (rev >= 0x39 && rev <= 0x3a)
pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE;
}
pinfo->sb_type.rev = rev;
return 1;
}
void sb800_prefetch(struct device *dev, int on)
{
u16 misc;
@ -106,7 +170,6 @@ EXPORT_SYMBOL_GPL(sb800_prefetch);
int usb_amd_find_chipset_info(void)
{
u8 rev = 0;
unsigned long flags;
struct amd_chipset_info info;
int ret;
@ -122,27 +185,17 @@ int usb_amd_find_chipset_info(void)
memset(&info, 0, sizeof(info));
spin_unlock_irqrestore(&amd_lock, flags);
info.smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, 0x4385, NULL);
if (info.smbus_dev) {
rev = info.smbus_dev->revision;
if (rev >= 0x40)
info.sb_type = 1;
else if (rev >= 0x30 && rev <= 0x3b)
info.sb_type = 3;
} else {
info.smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
0x780b, NULL);
if (!info.smbus_dev) {
ret = 0;
goto commit;
}
rev = info.smbus_dev->revision;
if (rev >= 0x11 && rev <= 0x18)
info.sb_type = 2;
if (!amd_chipset_sb_type_init(&info)) {
ret = 0;
goto commit;
}
if (info.sb_type == 0) {
/* Below chipset generations needn't enable AMD PLL quirk */
if (info.sb_type.gen == AMD_CHIPSET_UNKNOWN ||
info.sb_type.gen == AMD_CHIPSET_SB600 ||
info.sb_type.gen == AMD_CHIPSET_YANGTZE ||
(info.sb_type.gen == AMD_CHIPSET_SB700 &&
info.sb_type.rev > 0x3b)) {
if (info.smbus_dev) {
pci_dev_put(info.smbus_dev);
info.smbus_dev = NULL;
@ -197,6 +250,39 @@ commit:
}
EXPORT_SYMBOL_GPL(usb_amd_find_chipset_info);
int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev)
{
/* Make sure amd chipset type has already been initialized */
usb_amd_find_chipset_info();
if (amd_chipset.sb_type.gen != AMD_CHIPSET_YANGTZE)
return 0;
dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n");
return 1;
}
EXPORT_SYMBOL_GPL(usb_hcd_amd_remote_wakeup_quirk);
bool usb_amd_hang_symptom_quirk(void)
{
u8 rev;
usb_amd_find_chipset_info();
rev = amd_chipset.sb_type.rev;
/* SB600 and old version of SB700 have hang symptom bug */
return amd_chipset.sb_type.gen == AMD_CHIPSET_SB600 ||
(amd_chipset.sb_type.gen == AMD_CHIPSET_SB700 &&
rev >= 0x3a && rev <= 0x3b);
}
EXPORT_SYMBOL_GPL(usb_amd_hang_symptom_quirk);
bool usb_amd_prefetch_quirk(void)
{
usb_amd_find_chipset_info();
/* SB800 needs pre-fetch fix */
return amd_chipset.sb_type.gen == AMD_CHIPSET_SB800;
}
EXPORT_SYMBOL_GPL(usb_amd_prefetch_quirk);
/*
* The hardware normally enables the A-link power management feature, which
* lets the system lower the power consumption in idle states.
@ -229,7 +315,9 @@ static void usb_amd_quirk_pll(int disable)
}
}
if (amd_chipset.sb_type == 1 || amd_chipset.sb_type == 2) {
if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB800 ||
amd_chipset.sb_type.gen == AMD_CHIPSET_HUDSON2 ||
amd_chipset.sb_type.gen == AMD_CHIPSET_BOLTON) {
outb_p(AB_REG_BAR_LOW, 0xcd6);
addr_low = inb_p(0xcd7);
outb_p(AB_REG_BAR_HIGH, 0xcd6);
@ -240,7 +328,8 @@ static void usb_amd_quirk_pll(int disable)
outl_p(0x40, AB_DATA(addr));
outl_p(0x34, AB_INDX(addr));
val = inl_p(AB_DATA(addr));
} else if (amd_chipset.sb_type == 3) {
} else if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB700 &&
amd_chipset.sb_type.rev <= 0x3b) {
pci_read_config_dword(amd_chipset.smbus_dev,
AB_REG_BAR_SB700, &addr);
outl(AX_INDXC, AB_INDX(addr));
@ -353,7 +442,7 @@ void usb_amd_dev_put(void)
amd_chipset.nb_dev = NULL;
amd_chipset.smbus_dev = NULL;
amd_chipset.nb_type = 0;
amd_chipset.sb_type = 0;
memset(&amd_chipset.sb_type, 0, sizeof(amd_chipset.sb_type));
amd_chipset.isoc_reqs = 0;
amd_chipset.probe_result = 0;

2
drivers/usb/host/pci-quirks.h
View file

@ -5,6 +5,8 @@
void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
int usb_amd_find_chipset_info(void);
bool usb_amd_hang_symptom_quirk(void);
bool usb_amd_prefetch_quirk(void);
void usb_amd_dev_put(void);
void usb_amd_quirk_pll_disable(void);
void usb_amd_quirk_pll_enable(void);

4
drivers/usb/host/sl811-hcd.c
View file

@ -1413,7 +1413,7 @@ static int sl811h_show(struct seq_file *s, void *unused)
case SL11H_CTL1MASK_SE0: s = " se0/reset"; break;
case SL11H_CTL1MASK_K: s = " k/resume"; break;
default: s = "j"; break;
}; s; }),
} s; }),
(t & SL11H_CTL1MASK_LSPD) ? " lowspeed" : "",
(t & SL11H_CTL1MASK_SUSPEND) ? " suspend" : "");
@ -1446,7 +1446,7 @@ static int sl811h_show(struct seq_file *s, void *unused)
case USB_PID_SETUP: s = "setup"; break;
case USB_PID_ACK: s = "status"; break;
default: s = "?"; break;
}; s;}),
} s;}),
ep->maxpacket,
ep->nak_count, ep->error_count);
list_for_each_entry (urb, &ep->hep->urb_list, urb_list) {

16
drivers/usb/host/uhci-debug.c
View file

@ -310,14 +310,14 @@ static int uhci_show_status(struct uhci_hcd *uhci, char *buf, int len)
unsigned short portsc1, portsc2;
usbcmd = uhci_readw(uhci, 0);
usbstat = uhci_readw(uhci, 2);
usbint = uhci_readw(uhci, 4);
usbfrnum = uhci_readw(uhci, 6);
flbaseadd = uhci_readl(uhci, 8);
sof = uhci_readb(uhci, 12);
portsc1 = uhci_readw(uhci, 16);
portsc2 = uhci_readw(uhci, 18);
usbcmd = uhci_readw(uhci, USBCMD);
usbstat = uhci_readw(uhci, USBSTS);
usbint = uhci_readw(uhci, USBINTR);
usbfrnum = uhci_readw(uhci, USBFRNUM);
flbaseadd = uhci_readl(uhci, USBFLBASEADD);
sof = uhci_readb(uhci, USBSOF);
portsc1 = uhci_readw(uhci, USBPORTSC1);
portsc2 = uhci_readw(uhci, USBPORTSC2);
out += sprintf(out, " usbcmd = %04x %s%s%s%s%s%s%s%s\n",
usbcmd,

40
drivers/usb/host/uhci-hub.c
View file

@ -75,8 +75,6 @@ static inline int get_hub_status_data(struct uhci_hcd *uhci, char *buf)
return !!*buf;
}
#define OK(x) len = (x); break
#define CLR_RH_PORTSTAT(x) \
status = uhci_readw(uhci, port_addr); \
status &= ~(RWC_BITS|WZ_BITS); \
@ -244,7 +242,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
u16 wIndex, char *buf, u16 wLength)
{
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
int status, lstatus, retval = 0, len = 0;
int status, lstatus, retval = 0;
unsigned int port = wIndex - 1;
unsigned long port_addr = USBPORTSC1 + 2 * port;
u16 wPortChange, wPortStatus;
@ -258,7 +256,8 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
case GetHubStatus:
*(__le32 *)buf = cpu_to_le32(0);
OK(4); /* hub power */
retval = 4; /* hub power */
break;
case GetPortStatus:
if (port >= uhci->rh_numports)
goto err;
@ -311,13 +310,14 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
*(__le16 *)buf = cpu_to_le16(wPortStatus);
*(__le16 *)(buf + 2) = cpu_to_le16(wPortChange);
OK(4);
retval = 4;
break;
case SetHubFeature: /* We don't implement these */
case ClearHubFeature:
switch (wValue) {
case C_HUB_OVER_CURRENT:
case C_HUB_LOCAL_POWER:
OK(0);
break;
default:
goto err;
}
@ -329,7 +329,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
switch (wValue) {
case USB_PORT_FEAT_SUSPEND:
SET_RH_PORTSTAT(USBPORTSC_SUSP);
OK(0);
break;
case USB_PORT_FEAT_RESET:
SET_RH_PORTSTAT(USBPORTSC_PR);
@ -338,10 +338,10 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
/* USB v2.0 7.1.7.5 */
uhci->ports_timeout = jiffies + msecs_to_jiffies(50);
OK(0);
break;
case USB_PORT_FEAT_POWER:
/* UHCI has no power switching */
OK(0);
break;
default:
goto err;
}
@ -356,10 +356,10 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
/* Disable terminates Resume signalling */
uhci_finish_suspend(uhci, port, port_addr);
OK(0);
break;
case USB_PORT_FEAT_C_ENABLE:
CLR_RH_PORTSTAT(USBPORTSC_PEC);
OK(0);
break;
case USB_PORT_FEAT_SUSPEND:
if (!(uhci_readw(uhci, port_addr) & USBPORTSC_SUSP)) {
@ -382,32 +382,32 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
uhci->ports_timeout = jiffies +
msecs_to_jiffies(20);
}
OK(0);
break;
case USB_PORT_FEAT_C_SUSPEND:
clear_bit(port, &uhci->port_c_suspend);
OK(0);
break;
case USB_PORT_FEAT_POWER:
/* UHCI has no power switching */
goto err;
case USB_PORT_FEAT_C_CONNECTION:
CLR_RH_PORTSTAT(USBPORTSC_CSC);
OK(0);
break;
case USB_PORT_FEAT_C_OVER_CURRENT:
CLR_RH_PORTSTAT(USBPORTSC_OCC);
OK(0);
break;
case USB_PORT_FEAT_C_RESET:
/* this driver won't report these */
OK(0);
break;
default:
goto err;
}
break;
case GetHubDescriptor:
len = min_t(unsigned int, sizeof(root_hub_hub_des), wLength);
memcpy(buf, root_hub_hub_des, len);
if (len > 2)
retval = min_t(unsigned int, sizeof(root_hub_hub_des), wLength);
memcpy(buf, root_hub_hub_des, retval);
if (retval > 2)
buf[2] = uhci->rh_numports;
OK(len);
break;
default:
err:
retval = -EPIPE;

19
drivers/usb/host/uhci-pci.c
View file

@ -162,6 +162,8 @@ static void uhci_shutdown(struct pci_dev *pdev)
#ifdef CONFIG_PM
static int uhci_pci_resume(struct usb_hcd *hcd, bool hibernated);
static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
{
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
@ -174,12 +176,6 @@ static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
if (!HCD_HW_ACCESSIBLE(hcd) || uhci->dead)
goto done_okay; /* Already suspended or dead */
if (uhci->rh_state > UHCI_RH_SUSPENDED) {
dev_warn(uhci_dev(uhci), "Root hub isn't suspended!\n");
rc = -EBUSY;
goto done;
};
/* All PCI host controllers are required to disable IRQ generation
* at the source, so we must turn off PIRQ.
*/
@ -195,8 +191,15 @@ static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
done_okay:
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
done:
spin_unlock_irq(&uhci->lock);
synchronize_irq(hcd->irq);
/* Check for race with a wakeup request */
if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
uhci_pci_resume(hcd, false);
rc = -EBUSY;
}
return rc;
}
@ -299,3 +302,5 @@ static struct pci_driver uhci_pci_driver = {
},
#endif
};
MODULE_SOFTDEP("pre: ehci_pci");

3
drivers/usb/host/uhci-platform.c
View file

@ -105,8 +105,7 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
uhci->regs = hcd->regs;
ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED |
IRQF_SHARED);
ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
if (ret)
goto err_uhci;

4
drivers/usb/host/whci/hcd.c
View file

@ -134,7 +134,7 @@ static int whc_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb,
default:
ret = asl_urb_enqueue(whc, urb, mem_flags);
break;
};
}
return ret;
}
@ -160,7 +160,7 @@ static int whc_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, int status)
default:
ret = asl_urb_dequeue(whc, urb, status);
break;
};
}
return ret;
}

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