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Merge branch 'next' into for-linus

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This commit is contained in:
Dmitry Torokhov 2010-10-24 22:11:17 -07:00
commit 49327ad2bb
75 changed files with 5781 additions and 1845 deletions
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100
drivers/input/evdev.c
View file

@ -534,6 +534,80 @@ static int handle_eviocgbit(struct input_dev *dev,
}
#undef OLD_KEY_MAX
static int evdev_handle_get_keycode(struct input_dev *dev,
void __user *p, size_t size)
{
struct input_keymap_entry ke;
int error;
memset(&ke, 0, sizeof(ke));
if (size == sizeof(unsigned int[2])) {
/* legacy case */
int __user *ip = (int __user *)p;
if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
return -EFAULT;
ke.len = sizeof(unsigned int);
ke.flags = 0;
error = input_get_keycode(dev, &ke);
if (error)
return error;
if (put_user(ke.keycode, ip + 1))
return -EFAULT;
} else {
size = min(size, sizeof(ke));
if (copy_from_user(&ke, p, size))
return -EFAULT;
error = input_get_keycode(dev, &ke);
if (error)
return error;
if (copy_to_user(p, &ke, size))
return -EFAULT;
}
return 0;
}
static int evdev_handle_set_keycode(struct input_dev *dev,
void __user *p, size_t size)
{
struct input_keymap_entry ke;
memset(&ke, 0, sizeof(ke));
if (size == sizeof(unsigned int[2])) {
/* legacy case */
int __user *ip = (int __user *)p;
if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
return -EFAULT;
if (get_user(ke.keycode, ip + 1))
return -EFAULT;
ke.len = sizeof(unsigned int);
ke.flags = 0;
} else {
size = min(size, sizeof(ke));
if (copy_from_user(&ke, p, size))
return -EFAULT;
if (ke.len > sizeof(ke.scancode))
return -EINVAL;
}
return input_set_keycode(dev, &ke);
}
static long evdev_do_ioctl(struct file *file, unsigned int cmd,
void __user *p, int compat_mode)
{
@ -580,25 +654,6 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
return 0;
case EVIOCGKEYCODE:
if (get_user(t, ip))
return -EFAULT;
error = input_get_keycode(dev, t, &v);
if (error)
return error;
if (put_user(v, ip + 1))
return -EFAULT;
return 0;
case EVIOCSKEYCODE:
if (get_user(t, ip) || get_user(v, ip + 1))
return -EFAULT;
return input_set_keycode(dev, t, v);
case EVIOCRMFF:
return input_ff_erase(dev, (int)(unsigned long) p, file);
@ -620,7 +675,6 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
/* Now check variable-length commands */
#define EVIOC_MASK_SIZE(nr) ((nr) & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT))
switch (EVIOC_MASK_SIZE(cmd)) {
case EVIOCGKEY(0):
@ -654,6 +708,12 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
return -EFAULT;
return error;
case EVIOC_MASK_SIZE(EVIOCGKEYCODE):
return evdev_handle_get_keycode(dev, p, size);
case EVIOC_MASK_SIZE(EVIOCSKEYCODE):
return evdev_handle_set_keycode(dev, p, size);
}
/* Multi-number variable-length handlers */

44
drivers/input/gameport/emu10k1-gp.c
View file

@ -59,44 +59,52 @@ MODULE_DEVICE_TABLE(pci, emu_tbl);
static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int ioport, iolen;
struct emu *emu;
struct gameport *port;
if (pci_enable_device(pdev))
return -EBUSY;
ioport = pci_resource_start(pdev, 0);
iolen = pci_resource_len(pdev, 0);
if (!request_region(ioport, iolen, "emu10k1-gp"))
return -EBUSY;
int error;
emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
port = gameport_allocate_port();
if (!emu || !port) {
printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
release_region(ioport, iolen);
kfree(emu);
gameport_free_port(port);
return -ENOMEM;
error = -ENOMEM;
goto err_out_free;
}
emu->io = ioport;
emu->size = iolen;
error = pci_enable_device(pdev);
if (error)
goto err_out_free;
emu->io = pci_resource_start(pdev, 0);
emu->size = pci_resource_len(pdev, 0);
emu->dev = pdev;
emu->gameport = port;
gameport_set_name(port, "EMU10K1");
gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
port->dev.parent = &pdev->dev;
port->io = ioport;
port->io = emu->io;
if (!request_region(emu->io, emu->size, "emu10k1-gp")) {
printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n",
emu->io, emu->io + emu->size - 1);
error = -EBUSY;
goto err_out_disable_dev;
}
pci_set_drvdata(pdev, emu);
gameport_register_port(port);
return 0;
err_out_disable_dev:
pci_disable_device(pdev);
err_out_free:
gameport_free_port(port);
kfree(emu);
return error;
}
static void __devexit emu_remove(struct pci_dev *pdev)
@ -106,6 +114,8 @@ static void __devexit emu_remove(struct pci_dev *pdev)
gameport_unregister_port(emu->gameport);
release_region(emu->io, emu->size);
kfree(emu);
pci_disable_device(pdev);
}
static struct pci_driver emu_driver = {

10
drivers/input/gameport/fm801-gp.c
View file

@ -133,11 +133,11 @@ static void __devexit fm801_gp_remove(struct pci_dev *pci)
{
struct fm801_gp *gp = pci_get_drvdata(pci);
if (gp) {
gameport_unregister_port(gp->gameport);
release_resource(gp->res_port);
kfree(gp);
}
gameport_unregister_port(gp->gameport);
release_resource(gp->res_port);
kfree(gp);
pci_disable_device(pci);
}
static const struct pci_device_id fm801_gp_id_table[] = {

200
drivers/input/input.c
View file

@ -171,7 +171,7 @@ static int input_handle_abs_event(struct input_dev *dev,
if (code == ABS_MT_SLOT) {
/*
* "Stage" the event; we'll flush it later, when we
* get actiual touch data.
* get actual touch data.
*/
if (*pval >= 0 && *pval < dev->mtsize)
dev->slot = *pval;
@ -188,7 +188,7 @@ static int input_handle_abs_event(struct input_dev *dev,
pold = &mtslot->abs[code - ABS_MT_FIRST];
} else {
/*
* Bypass filtering for multitouch events when
* Bypass filtering for multi-touch events when
* not employing slots.
*/
pold = NULL;
@ -634,78 +634,141 @@ static void input_disconnect_device(struct input_dev *dev)
spin_unlock_irq(&dev->event_lock);
}
static int input_fetch_keycode(struct input_dev *dev, int scancode)
/**
* input_scancode_to_scalar() - converts scancode in &struct input_keymap_entry
* @ke: keymap entry containing scancode to be converted.
* @scancode: pointer to the location where converted scancode should
* be stored.
*
* This function is used to convert scancode stored in &struct keymap_entry
* into scalar form understood by legacy keymap handling methods. These
* methods expect scancodes to be represented as 'unsigned int'.
*/
int input_scancode_to_scalar(const struct input_keymap_entry *ke,
unsigned int *scancode)
{
switch (ke->len) {
case 1:
*scancode = *((u8 *)ke->scancode);
break;
case 2:
*scancode = *((u16 *)ke->scancode);
break;
case 4:
*scancode = *((u32 *)ke->scancode);
break;
default:
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL(input_scancode_to_scalar);
/*
* Those routines handle the default case where no [gs]etkeycode() is
* defined. In this case, an array indexed by the scancode is used.
*/
static unsigned int input_fetch_keycode(struct input_dev *dev,
unsigned int index)
{
switch (dev->keycodesize) {
case 1:
return ((u8 *)dev->keycode)[scancode];
case 1:
return ((u8 *)dev->keycode)[index];
case 2:
return ((u16 *)dev->keycode)[scancode];
case 2:
return ((u16 *)dev->keycode)[index];
default:
return ((u32 *)dev->keycode)[scancode];
default:
return ((u32 *)dev->keycode)[index];
}
}
static int input_default_getkeycode(struct input_dev *dev,
unsigned int scancode,
unsigned int *keycode)
struct input_keymap_entry *ke)
{
unsigned int index;
int error;
if (!dev->keycodesize)
return -EINVAL;
if (scancode >= dev->keycodemax)
if (ke->flags & INPUT_KEYMAP_BY_INDEX)
index = ke->index;
else {
error = input_scancode_to_scalar(ke, &index);
if (error)
return error;
}
if (index >= dev->keycodemax)
return -EINVAL;
*keycode = input_fetch_keycode(dev, scancode);
ke->keycode = input_fetch_keycode(dev, index);
ke->index = index;
ke->len = sizeof(index);
memcpy(ke->scancode, &index, sizeof(index));
return 0;
}
static int input_default_setkeycode(struct input_dev *dev,
unsigned int scancode,
unsigned int keycode)
const struct input_keymap_entry *ke,
unsigned int *old_keycode)
{
int old_keycode;
unsigned int index;
int error;
int i;
if (scancode >= dev->keycodemax)
return -EINVAL;
if (!dev->keycodesize)
return -EINVAL;
if (dev->keycodesize < sizeof(keycode) && (keycode >> (dev->keycodesize * 8)))
if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
index = ke->index;
} else {
error = input_scancode_to_scalar(ke, &index);
if (error)
return error;
}
if (index >= dev->keycodemax)
return -EINVAL;
if (dev->keycodesize < sizeof(dev->keycode) &&
(ke->keycode >> (dev->keycodesize * 8)))
return -EINVAL;
switch (dev->keycodesize) {
case 1: {
u8 *k = (u8 *)dev->keycode;
old_keycode = k[scancode];
k[scancode] = keycode;
*old_keycode = k[index];
k[index] = ke->keycode;
break;
}
case 2: {
u16 *k = (u16 *)dev->keycode;
old_keycode = k[scancode];
k[scancode] = keycode;
*old_keycode = k[index];
k[index] = ke->keycode;
break;
}
default: {
u32 *k = (u32 *)dev->keycode;
old_keycode = k[scancode];
k[scancode] = keycode;
*old_keycode = k[index];
k[index] = ke->keycode;
break;
}
}
__clear_bit(old_keycode, dev->keybit);
__set_bit(keycode, dev->keybit);
__clear_bit(*old_keycode, dev->keybit);
__set_bit(ke->keycode, dev->keybit);
for (i = 0; i < dev->keycodemax; i++) {
if (input_fetch_keycode(dev, i) == old_keycode) {
__set_bit(old_keycode, dev->keybit);
if (input_fetch_keycode(dev, i) == *old_keycode) {
__set_bit(*old_keycode, dev->keybit);
break; /* Setting the bit twice is useless, so break */
}
}
@ -716,53 +779,86 @@ static int input_default_setkeycode(struct input_dev *dev,
/**
* input_get_keycode - retrieve keycode currently mapped to a given scancode
* @dev: input device which keymap is being queried
* @scancode: scancode (or its equivalent for device in question) for which
* keycode is needed
* @keycode: result
* @ke: keymap entry
*
* This function should be called by anyone interested in retrieving current
* keymap. Presently keyboard and evdev handlers use it.
* keymap. Presently evdev handlers use it.
*/
int input_get_keycode(struct input_dev *dev,
unsigned int scancode, unsigned int *keycode)
int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke)
{
unsigned long flags;
int retval;
spin_lock_irqsave(&dev->event_lock, flags);
retval = dev->getkeycode(dev, scancode, keycode);
spin_unlock_irqrestore(&dev->event_lock, flags);
if (dev->getkeycode) {
/*
* Support for legacy drivers, that don't implement the new
* ioctls
*/
u32 scancode = ke->index;
memcpy(ke->scancode, &scancode, sizeof(scancode));
ke->len = sizeof(scancode);
retval = dev->getkeycode(dev, scancode, &ke->keycode);
} else {
retval = dev->getkeycode_new(dev, ke);
}
spin_unlock_irqrestore(&dev->event_lock, flags);
return retval;
}
EXPORT_SYMBOL(input_get_keycode);
/**
* input_get_keycode - assign new keycode to a given scancode
* input_set_keycode - attribute a keycode to a given scancode
* @dev: input device which keymap is being updated
* @scancode: scancode (or its equivalent for device in question)
* @keycode: new keycode to be assigned to the scancode
* @ke: new keymap entry
*
* This function should be called by anyone needing to update current
* keymap. Presently keyboard and evdev handlers use it.
*/
int input_set_keycode(struct input_dev *dev,
unsigned int scancode, unsigned int keycode)
const struct input_keymap_entry *ke)
{
unsigned long flags;
unsigned int old_keycode;
int retval;
if (keycode > KEY_MAX)
if (ke->keycode > KEY_MAX)
return -EINVAL;
spin_lock_irqsave(&dev->event_lock, flags);
retval = dev->getkeycode(dev, scancode, &old_keycode);
if (retval)
goto out;
if (dev->setkeycode) {
/*
* Support for legacy drivers, that don't implement the new
* ioctls
*/
unsigned int scancode;
retval = input_scancode_to_scalar(ke, &scancode);
if (retval)
goto out;
/*
* We need to know the old scancode, in order to generate a
* keyup effect, if the set operation happens successfully
*/
if (!dev->getkeycode) {
retval = -EINVAL;
goto out;
}
retval = dev->getkeycode(dev, scancode, &old_keycode);
if (retval)
goto out;
retval = dev->setkeycode(dev, scancode, ke->keycode);
} else {
retval = dev->setkeycode_new(dev, ke, &old_keycode);
}
retval = dev->setkeycode(dev, scancode, keycode);
if (retval)
goto out;
@ -1601,7 +1697,7 @@ EXPORT_SYMBOL(input_free_device);
*
* This function allocates all necessary memory for MT slot handling in the
* input device, and adds ABS_MT_SLOT to the device capabilities. All slots
* are initially marked as unused iby setting ABS_MT_TRACKING_ID to -1.
* are initially marked as unused by setting ABS_MT_TRACKING_ID to -1.
*/
int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots)
{
@ -1759,11 +1855,11 @@ int input_register_device(struct input_dev *dev)
dev->rep[REP_PERIOD] = 33;
}
if (!dev->getkeycode)
dev->getkeycode = input_default_getkeycode;
if (!dev->getkeycode && !dev->getkeycode_new)
dev->getkeycode_new = input_default_getkeycode;
if (!dev->setkeycode)
dev->setkeycode = input_default_setkeycode;
if (!dev->setkeycode && !dev->setkeycode_new)
dev->setkeycode_new = input_default_setkeycode;
dev_set_name(&dev->dev, "input%ld",
(unsigned long) atomic_inc_return(&input_no) - 1);

19
drivers/input/keyboard/Kconfig
View file

@ -327,6 +327,16 @@ config KEYBOARD_NEWTON
To compile this driver as a module, choose M here: the
module will be called newtonkbd.
config KEYBOARD_NOMADIK
tristate "ST-Ericsson Nomadik SKE keyboard"
depends on PLAT_NOMADIK
help
Say Y here if you want to use a keypad provided on the SKE controller
used on the Ux500 and Nomadik platforms
To compile this driver as a module, choose M here: the
module will be called nmk-ske-keypad.
config KEYBOARD_OPENCORES
tristate "OpenCores Keyboard Controller"
help
@ -424,6 +434,15 @@ config KEYBOARD_OMAP
To compile this driver as a module, choose M here: the
module will be called omap-keypad.
config KEYBOARD_OMAP4
tristate "TI OMAP4 keypad support"
depends on ARCH_OMAP4
help
Say Y here if you want to use the OMAP4 keypad.
To compile this driver as a module, choose M here: the
module will be called omap4-keypad.
config KEYBOARD_TWL4030
tristate "TI TWL4030/TWL5030/TPS659x0 keypad support"
depends on TWL4030_CORE

2
drivers/input/keyboard/Makefile
View file

@ -28,7 +28,9 @@ obj-$(CONFIG_KEYBOARD_MATRIX) += matrix_keypad.o
obj-$(CONFIG_KEYBOARD_MAX7359) += max7359_keypad.o
obj-$(CONFIG_KEYBOARD_MCS) += mcs_touchkey.o
obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
obj-$(CONFIG_KEYBOARD_NOMADIK) += nomadik-ske-keypad.o
obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o
obj-$(CONFIG_KEYBOARD_OMAP4) += omap4-keypad.o
obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o
obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o

2
drivers/input/keyboard/adp5588-keys.c
View file

@ -660,7 +660,7 @@ static const struct dev_pm_ops adp5588_dev_pm_ops = {
#endif
static const struct i2c_device_id adp5588_id[] = {
{ KBUILD_MODNAME, 0 },
{ "adp5588-keys", 0 },
{ "adp5587-keys", 0 },
{ }
};

2
drivers/input/keyboard/hil_kbd.c
View file

@ -570,6 +570,8 @@ static struct serio_device_id hil_dev_ids[] = {
{ 0 }
};
MODULE_DEVICE_TABLE(serio, hil_dev_ids);
static struct serio_driver hil_serio_drv = {
.driver = {
.name = "hil_dev",

408
drivers/input/keyboard/nomadik-ske-keypad.c Normal file
View file

@ -0,0 +1,408 @@
/*
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Naveen Kumar G <naveen.gaddipati@stericsson.com> for ST-Ericsson
* Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
*
* License terms:GNU General Public License (GPL) version 2
*
* Keypad controller driver for the SKE (Scroll Key Encoder) module used in
* the Nomadik 8815 and Ux500 platforms.
*/
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <plat/ske.h>
/* SKE_CR bits */
#define SKE_KPMLT (0x1 << 6)
#define SKE_KPCN (0x7 << 3)
#define SKE_KPASEN (0x1 << 2)
#define SKE_KPASON (0x1 << 7)
/* SKE_IMSC bits */
#define SKE_KPIMA (0x1 << 2)
/* SKE_ICR bits */
#define SKE_KPICS (0x1 << 3)
#define SKE_KPICA (0x1 << 2)
/* SKE_RIS bits */
#define SKE_KPRISA (0x1 << 2)
#define SKE_KEYPAD_ROW_SHIFT 3
#define SKE_KPD_KEYMAP_SIZE (8 * 8)
/* keypad auto scan registers */
#define SKE_ASR0 0x20
#define SKE_ASR1 0x24
#define SKE_ASR2 0x28
#define SKE_ASR3 0x2C
#define SKE_NUM_ASRX_REGISTERS (4)
/**
* struct ske_keypad - data structure used by keypad driver
* @irq: irq no
* @reg_base: ske regsiters base address
* @input: pointer to input device object
* @board: keypad platform device
* @keymap: matrix scan code table for keycodes
* @clk: clock structure pointer
*/
struct ske_keypad {
int irq;
void __iomem *reg_base;
struct input_dev *input;
const struct ske_keypad_platform_data *board;
unsigned short keymap[SKE_KPD_KEYMAP_SIZE];
struct clk *clk;
spinlock_t ske_keypad_lock;
};
static void ske_keypad_set_bits(struct ske_keypad *keypad, u16 addr,
u8 mask, u8 data)
{
u32 ret;
spin_lock(&keypad->ske_keypad_lock);
ret = readl(keypad->reg_base + addr);
ret &= ~mask;
ret |= data;
writel(ret, keypad->reg_base + addr);
spin_unlock(&keypad->ske_keypad_lock);
}
/*
* ske_keypad_chip_init: init keypad controller configuration
*
* Enable Multi key press detection, auto scan mode
*/
static int __devinit ske_keypad_chip_init(struct ske_keypad *keypad)
{
u32 value;
int timeout = 50;
/* check SKE_RIS to be 0 */
while ((readl(keypad->reg_base + SKE_RIS) != 0x00000000) && timeout--)
cpu_relax();
if (!timeout)
return -EINVAL;
/*
* set debounce value
* keypad dbounce is configured in DBCR[15:8]
* dbounce value in steps of 32/32.768 ms
*/
spin_lock(&keypad->ske_keypad_lock);
value = readl(keypad->reg_base + SKE_DBCR);
value = value & 0xff;
value |= ((keypad->board->debounce_ms * 32000)/32768) << 8;
writel(value, keypad->reg_base + SKE_DBCR);
spin_unlock(&keypad->ske_keypad_lock);
/* enable multi key detection */
ske_keypad_set_bits(keypad, SKE_CR, 0x0, SKE_KPMLT);
/*
* set up the number of columns
* KPCN[5:3] defines no. of keypad columns to be auto scanned
*/
value = (keypad->board->kcol - 1) << 3;
ske_keypad_set_bits(keypad, SKE_CR, SKE_KPCN, value);
/* clear keypad interrupt for auto(and pending SW) scans */
ske_keypad_set_bits(keypad, SKE_ICR, 0x0, SKE_KPICA | SKE_KPICS);
/* un-mask keypad interrupts */
ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
/* enable automatic scan */
ske_keypad_set_bits(keypad, SKE_CR, 0x0, SKE_KPASEN);
return 0;
}
static void ske_keypad_read_data(struct ske_keypad *keypad)
{
struct input_dev *input = keypad->input;
u16 status;
int col = 0, row = 0, code;
int ske_asr, ske_ris, key_pressed, i;
/*
* Read the auto scan registers
*
* Each SKE_ASRx (x=0 to x=3) contains two row values.
* lower byte contains row value for column 2*x,
* upper byte contains row value for column 2*x + 1
*/
for (i = 0; i < SKE_NUM_ASRX_REGISTERS; i++) {
ske_asr = readl(keypad->reg_base + SKE_ASR0 + (4 * i));
if (!ske_asr)
continue;
/* now that ASRx is zero, find out the column x and row y*/
if (ske_asr & 0xff) {
col = i * 2;
status = ske_asr & 0xff;
} else {
col = (i * 2) + 1;
status = (ske_asr & 0xff00) >> 8;
}
/* find out the row */
row = __ffs(status);
code = MATRIX_SCAN_CODE(row, col, SKE_KEYPAD_ROW_SHIFT);
ske_ris = readl(keypad->reg_base + SKE_RIS);
key_pressed = ske_ris & SKE_KPRISA;
input_event(input, EV_MSC, MSC_SCAN, code);
input_report_key(input, keypad->keymap[code], key_pressed);
input_sync(input);
}
}
static irqreturn_t ske_keypad_irq(int irq, void *dev_id)
{
struct ske_keypad *keypad = dev_id;
int retries = 20;
/* disable auto scan interrupt; mask the interrupt generated */
ske_keypad_set_bits(keypad, SKE_IMSC, ~SKE_KPIMA, 0x0);
ske_keypad_set_bits(keypad, SKE_ICR, 0x0, SKE_KPICA);
while ((readl(keypad->reg_base + SKE_CR) & SKE_KPASON) && --retries)
msleep(5);
if (retries) {
/* SKEx registers are stable and can be read */
ske_keypad_read_data(keypad);
}
/* enable auto scan interrupts */
ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
return IRQ_HANDLED;
}
static int __devinit ske_keypad_probe(struct platform_device *pdev)
{
const struct ske_keypad_platform_data *plat = pdev->dev.platform_data;
struct ske_keypad *keypad;
struct input_dev *input;
struct resource *res;
int irq;
int error;
if (!plat) {
dev_err(&pdev->dev, "invalid keypad platform data\n");
return -EINVAL;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get keypad irq\n");
return -EINVAL;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "missing platform resources\n");
return -EINVAL;
}
keypad = kzalloc(sizeof(struct ske_keypad), GFP_KERNEL);
input = input_allocate_device();
if (!keypad || !input) {
dev_err(&pdev->dev, "failed to allocate keypad memory\n");
error = -ENOMEM;
goto err_free_mem;
}
keypad->irq = irq;
keypad->board = plat;
keypad->input = input;
spin_lock_init(&keypad->ske_keypad_lock);
if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
dev_err(&pdev->dev, "failed to request I/O memory\n");
error = -EBUSY;
goto err_free_mem;
}
keypad->reg_base = ioremap(res->start, resource_size(res));
if (!keypad->reg_base) {
dev_err(&pdev->dev, "failed to remap I/O memory\n");
error = -ENXIO;
goto err_free_mem_region;
}
keypad->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(keypad->clk)) {
dev_err(&pdev->dev, "failed to get clk\n");
error = PTR_ERR(keypad->clk);
goto err_iounmap;
}
input->id.bustype = BUS_HOST;
input->name = "ux500-ske-keypad";
input->dev.parent = &pdev->dev;
input->keycode = keypad->keymap;
input->keycodesize = sizeof(keypad->keymap[0]);
input->keycodemax = ARRAY_SIZE(keypad->keymap);
input_set_capability(input, EV_MSC, MSC_SCAN);
__set_bit(EV_KEY, input->evbit);
if (!plat->no_autorepeat)
__set_bit(EV_REP, input->evbit);
matrix_keypad_build_keymap(plat->keymap_data, SKE_KEYPAD_ROW_SHIFT,
input->keycode, input->keybit);
clk_enable(keypad->clk);
/* go through board initialization helpers */
if (keypad->board->init)
keypad->board->init();
error = ske_keypad_chip_init(keypad);
if (error) {
dev_err(&pdev->dev, "unable to init keypad hardware\n");
goto err_clk_disable;
}
error = request_threaded_irq(keypad->irq, NULL, ske_keypad_irq,
IRQF_ONESHOT, "ske-keypad", keypad);
if (error) {
dev_err(&pdev->dev, "allocate irq %d failed\n", keypad->irq);
goto err_clk_disable;
}
error = input_register_device(input);
if (error) {
dev_err(&pdev->dev,
"unable to register input device: %d\n", error);
goto err_free_irq;
}
if (plat->wakeup_enable)
device_init_wakeup(&pdev->dev, true);
platform_set_drvdata(pdev, keypad);
return 0;
err_free_irq:
free_irq(keypad->irq, keypad);
err_clk_disable:
clk_disable(keypad->clk);
clk_put(keypad->clk);
err_iounmap:
iounmap(keypad->reg_base);
err_free_mem_region:
release_mem_region(res->start, resource_size(res));
err_free_mem:
input_free_device(input);
kfree(keypad);
return error;
}
static int __devexit ske_keypad_remove(struct platform_device *pdev)
{
struct ske_keypad *keypad = platform_get_drvdata(pdev);
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
free_irq(keypad->irq, keypad);
input_unregister_device(keypad->input);
clk_disable(keypad->clk);
clk_put(keypad->clk);
if (keypad->board->exit)
keypad->board->exit();
iounmap(keypad->reg_base);
release_mem_region(res->start, resource_size(res));
kfree(keypad);
return 0;
}
#ifdef CONFIG_PM
static int ske_keypad_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct ske_keypad *keypad = platform_get_drvdata(pdev);
int irq = platform_get_irq(pdev, 0);
if (device_may_wakeup(dev))
enable_irq_wake(irq);
else
ske_keypad_set_bits(keypad, SKE_IMSC, ~SKE_KPIMA, 0x0);
return 0;
}
static int ske_keypad_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct ske_keypad *keypad = platform_get_drvdata(pdev);
int irq = platform_get_irq(pdev, 0);
if (device_may_wakeup(dev))
disable_irq_wake(irq);
else
ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
return 0;
}
static const struct dev_pm_ops ske_keypad_dev_pm_ops = {
.suspend = ske_keypad_suspend,
.resume = ske_keypad_resume,
};
#endif
struct platform_driver ske_keypad_driver = {
.driver = {
.name = "nmk-ske-keypad",
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &ske_keypad_dev_pm_ops,
#endif
},
.probe = ske_keypad_probe,
.remove = __devexit_p(ske_keypad_remove),
};
static int __init ske_keypad_init(void)
{
return platform_driver_probe(&ske_keypad_driver, ske_keypad_probe);
}
module_init(ske_keypad_init);
static void __exit ske_keypad_exit(void)
{
platform_driver_unregister(&ske_keypad_driver);
}
module_exit(ske_keypad_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Naveen Kumar <[email protected]> / Sundar Iyer <[email protected]>");
MODULE_DESCRIPTION("Nomadik Scroll-Key-Encoder Keypad Driver");
MODULE_ALIAS("platform:nomadik-ske-keypad");

318
drivers/input/keyboard/omap4-keypad.c Normal file
View file

@ -0,0 +1,318 @@
/*
* OMAP4 Keypad Driver
*
* Copyright (C) 2010 Texas Instruments
*
* Author: Abraham Arce <x0066660@ti.com>
* Initial Code: Syed Rafiuddin <rafiuddin.syed@ti.com>
*
* 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 option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <plat/omap4-keypad.h>
/* OMAP4 registers */
#define OMAP4_KBD_REVISION 0x00
#define OMAP4_KBD_SYSCONFIG 0x10
#define OMAP4_KBD_SYSSTATUS 0x14
#define OMAP4_KBD_IRQSTATUS 0x18
#define OMAP4_KBD_IRQENABLE 0x1C
#define OMAP4_KBD_WAKEUPENABLE 0x20
#define OMAP4_KBD_PENDING 0x24
#define OMAP4_KBD_CTRL 0x28
#define OMAP4_KBD_DEBOUNCINGTIME 0x2C
#define OMAP4_KBD_LONGKEYTIME 0x30
#define OMAP4_KBD_TIMEOUT 0x34
#define OMAP4_KBD_STATEMACHINE 0x38
#define OMAP4_KBD_ROWINPUTS 0x3C
#define OMAP4_KBD_COLUMNOUTPUTS 0x40
#define OMAP4_KBD_FULLCODE31_0 0x44
#define OMAP4_KBD_FULLCODE63_32 0x48
/* OMAP4 bit definitions */
#define OMAP4_DEF_IRQENABLE_EVENTEN (1 << 0)
#define OMAP4_DEF_IRQENABLE_LONGKEY (1 << 1)
#define OMAP4_DEF_IRQENABLE_TIMEOUTEN (1 << 2)
#define OMAP4_DEF_WUP_EVENT_ENA (1 << 0)
#define OMAP4_DEF_WUP_LONG_KEY_ENA (1 << 1)
#define OMAP4_DEF_CTRL_NOSOFTMODE (1 << 1)
#define OMAP4_DEF_CTRLPTVVALUE (1 << 2)
#define OMAP4_DEF_CTRLPTV (1 << 1)
/* OMAP4 values */
#define OMAP4_VAL_IRQDISABLE 0x00
#define OMAP4_VAL_DEBOUNCINGTIME 0x07
#define OMAP4_VAL_FUNCTIONALCFG 0x1E
#define OMAP4_MASK_IRQSTATUSDISABLE 0xFFFF
struct omap4_keypad {
struct input_dev *input;
void __iomem *base;
int irq;
unsigned int rows;
unsigned int cols;
unsigned int row_shift;
unsigned char key_state[8];
unsigned short keymap[];
};
static void __devinit omap4_keypad_config(struct omap4_keypad *keypad_data)
{
__raw_writel(OMAP4_VAL_FUNCTIONALCFG,
keypad_data->base + OMAP4_KBD_CTRL);
__raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
__raw_writel(OMAP4_VAL_IRQDISABLE,
keypad_data->base + OMAP4_KBD_IRQSTATUS);
__raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
keypad_data->base + OMAP4_KBD_IRQENABLE);
__raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
}
/* Interrupt handler */
static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
{
struct omap4_keypad *keypad_data = dev_id;
struct input_dev *input_dev = keypad_data->input;
unsigned char key_state[ARRAY_SIZE(keypad_data->key_state)];
unsigned int col, row, code, changed;
u32 *new_state = (u32 *) key_state;
/* Disable interrupts */
__raw_writel(OMAP4_VAL_IRQDISABLE,
keypad_data->base + OMAP4_KBD_IRQENABLE);
*new_state = __raw_readl(keypad_data->base + OMAP4_KBD_FULLCODE31_0);
*(new_state + 1) = __raw_readl(keypad_data->base
+ OMAP4_KBD_FULLCODE63_32);
for (row = 0; row < keypad_data->rows; row++) {
changed = key_state[row] ^ keypad_data->key_state[row];
if (!changed)
continue;
for (col = 0; col < keypad_data->cols; col++) {
if (changed & (1 << col)) {
code = MATRIX_SCAN_CODE(row, col,
keypad_data->row_shift);
input_event(input_dev, EV_MSC, MSC_SCAN, code);
input_report_key(input_dev,
keypad_data->keymap[code],
key_state[row] & (1 << col));
}
}
}
input_sync(input_dev);
memcpy(keypad_data->key_state, key_state,
sizeof(keypad_data->key_state));
/* clear pending interrupts */
__raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
keypad_data->base + OMAP4_KBD_IRQSTATUS);
/* enable interrupts */
__raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
keypad_data->base + OMAP4_KBD_IRQENABLE);
return IRQ_HANDLED;
}
static int __devinit omap4_keypad_probe(struct platform_device *pdev)
{
const struct omap4_keypad_platform_data *pdata;
struct omap4_keypad *keypad_data;
struct input_dev *input_dev;
struct resource *res;
resource_size_t size;
unsigned int row_shift, max_keys;
int irq;
int error;
/* platform data */
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data defined\n");
return -EINVAL;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "no base address specified\n");
return -EINVAL;
}
irq = platform_get_irq(pdev, 0);
if (!irq) {
dev_err(&pdev->dev, "no keyboard irq assigned\n");
return -EINVAL;
}
if (!pdata->keymap_data) {
dev_err(&pdev->dev, "no keymap data defined\n");
return -EINVAL;
}
row_shift = get_count_order(pdata->cols);
max_keys = pdata->rows << row_shift;
keypad_data = kzalloc(sizeof(struct omap4_keypad) +
max_keys * sizeof(keypad_data->keymap[0]),
GFP_KERNEL);
if (!keypad_data) {
dev_err(&pdev->dev, "keypad_data memory allocation failed\n");
return -ENOMEM;
}
size = resource_size(res);
res = request_mem_region(res->start, size, pdev->name);
if (!res) {
dev_err(&pdev->dev, "can't request mem region\n");
error = -EBUSY;
goto err_free_keypad;
}
keypad_data->base = ioremap(res->start, resource_size(res));
if (!keypad_data->base) {
dev_err(&pdev->dev, "can't ioremap mem resource\n");
error = -ENOMEM;
goto err_release_mem;
}
keypad_data->irq = irq;
keypad_data->row_shift = row_shift;
keypad_data->rows = pdata->rows;
keypad_data->cols = pdata->cols;
/* input device allocation */
keypad_data->input = input_dev = input_allocate_device();
if (!input_dev) {
error = -ENOMEM;
goto err_unmap;
}
input_dev->name = pdev->name;
input_dev->dev.parent = &pdev->dev;
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x0001;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0001;
input_dev->keycode = keypad_data->keymap;
input_dev->keycodesize = sizeof(keypad_data->keymap[0]);
input_dev->keycodemax = max_keys;
__set_bit(EV_KEY, input_dev->evbit);
__set_bit(EV_REP, input_dev->evbit);
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
input_set_drvdata(input_dev, keypad_data);
matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
input_dev->keycode, input_dev->keybit);
omap4_keypad_config(keypad_data);
error = request_irq(keypad_data->irq, omap4_keypad_interrupt,
IRQF_TRIGGER_RISING,
"omap4-keypad", keypad_data);
if (error) {
dev_err(&pdev->dev, "failed to register interrupt\n");
goto err_free_input;
}
error = input_register_device(keypad_data->input);
if (error < 0) {
dev_err(&pdev->dev, "failed to register input device\n");
goto err_free_irq;
}
platform_set_drvdata(pdev, keypad_data);
return 0;
err_free_irq:
free_irq(keypad_data->irq, keypad_data);
err_free_input:
input_free_device(input_dev);
err_unmap:
iounmap(keypad_data->base);
err_release_mem:
release_mem_region(res->start, size);
err_free_keypad:
kfree(keypad_data);
return error;
}
static int __devexit omap4_keypad_remove(struct platform_device *pdev)
{
struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
struct resource *res;
free_irq(keypad_data->irq, keypad_data);
input_unregister_device(keypad_data->input);
iounmap(keypad_data->base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
kfree(keypad_data);
platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver omap4_keypad_driver = {
.probe = omap4_keypad_probe,
.remove = __devexit_p(omap4_keypad_remove),
.driver = {
.name = "omap4-keypad",
.owner = THIS_MODULE,
},
};
static int __init omap4_keypad_init(void)
{
return platform_driver_register(&omap4_keypad_driver);
}
module_init(omap4_keypad_init);
static void __exit omap4_keypad_exit(void)
{
platform_driver_unregister(&omap4_keypad_driver);
}
module_exit(omap4_keypad_exit);
MODULE_AUTHOR("Texas Instruments");
MODULE_DESCRIPTION("OMAP4 Keypad Driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:omap4-keypad");

7
drivers/input/keyboard/twl4030_keypad.c
View file

@ -406,23 +406,22 @@ static int __devinit twl4030_kp_probe(struct platform_device *pdev)
if (error) {
dev_info(kp->dbg_dev, "request_irq failed for irq no=%d\n",
kp->irq);
goto err3;
goto err2;
}
/* Enable KP and TO interrupts now. */
reg = (u8) ~(KEYP_IMR1_KP | KEYP_IMR1_TO);
if (twl4030_kpwrite_u8(kp, reg, KEYP_IMR1)) {
error = -EIO;
goto err4;
goto err3;
}
platform_set_drvdata(pdev, kp);
return 0;
err4:
err3:
/* mask all events - we don't care about the result */
(void) twl4030_kpwrite_u8(kp, 0xff, KEYP_IMR1);
err3:
free_irq(kp->irq, NULL);
err2:
input_unregister_device(input);

10
drivers/input/misc/Kconfig
View file

@ -22,6 +22,16 @@ config INPUT_88PM860X_ONKEY
To compile this driver as a module, choose M here: the module
will be called 88pm860x_onkey.
config INPUT_AB8500_PONKEY
tristate "AB8500 Pon (PowerOn) Key"
depends on AB8500_CORE
help
Say Y here to use the PowerOn Key for ST-Ericsson's AB8500
Mix-Sig PMIC.
To compile this driver as a module, choose M here: the module
will be called ab8500-ponkey.
config INPUT_AD714X
tristate "Analog Devices AD714x Capacitance Touch Sensor"
help

1
drivers/input/misc/Makefile
View file

@ -5,6 +5,7 @@
# Each configuration option enables a list of files.
obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o
obj-$(CONFIG_INPUT_AB8500_PONKEY) += ab8500-ponkey.o
obj-$(CONFIG_INPUT_AD714X) += ad714x.o
obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o
obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o

157
drivers/input/misc/ab8500-ponkey.c Normal file
View file

@ -0,0 +1,157 @@
/*
* Copyright (C) ST-Ericsson SA 2010
*
* License Terms: GNU General Public License v2
* Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
*
* AB8500 Power-On Key handler
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/ab8500.h>
#include <linux/slab.h>
/**
* struct ab8500_ponkey - ab8500 ponkey information
* @input_dev: pointer to input device
* @ab8500: ab8500 parent
* @irq_dbf: irq number for falling transition
* @irq_dbr: irq number for rising transition
*/
struct ab8500_ponkey {
struct input_dev *idev;
struct ab8500 *ab8500;
int irq_dbf;
int irq_dbr;
};
/* AB8500 gives us an interrupt when ONKEY is held */
static irqreturn_t ab8500_ponkey_handler(int irq, void *data)
{
struct ab8500_ponkey *ponkey = data;
if (irq == ponkey->irq_dbf)
input_report_key(ponkey->idev, KEY_POWER, true);
else if (irq == ponkey->irq_dbr)
input_report_key(ponkey->idev, KEY_POWER, false);
input_sync(ponkey->idev);
return IRQ_HANDLED;
}
static int __devinit ab8500_ponkey_probe(struct platform_device *pdev)
{
struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
struct ab8500_ponkey *ponkey;
struct input_dev *input;
int irq_dbf, irq_dbr;
int error;
irq_dbf = platform_get_irq_byname(pdev, "ONKEY_DBF");
if (irq_dbf < 0) {
dev_err(&pdev->dev, "No IRQ for ONKEY_DBF, error=%d\n", irq_dbf);
return irq_dbf;
}
irq_dbr = platform_get_irq_byname(pdev, "ONKEY_DBR");
if (irq_dbr < 0) {
dev_err(&pdev->dev, "No IRQ for ONKEY_DBR, error=%d\n", irq_dbr);
return irq_dbr;
}
ponkey = kzalloc(sizeof(struct ab8500_ponkey), GFP_KERNEL);
input = input_allocate_device();
if (!ponkey || !input) {
error = -ENOMEM;
goto err_free_mem;
}
ponkey->idev = input;
ponkey->ab8500 = ab8500;
ponkey->irq_dbf = irq_dbf;
ponkey->irq_dbr = irq_dbr;
input->name = "AB8500 POn(PowerOn) Key";
input->dev.parent = &pdev->dev;
input_set_capability(input, EV_KEY, KEY_POWER);
error = request_any_context_irq(ponkey->irq_dbf, ab8500_ponkey_handler,
0, "ab8500-ponkey-dbf", ponkey);
if (error < 0) {
dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n",
ponkey->irq_dbf, error);
goto err_free_mem;
}
error = request_any_context_irq(ponkey->irq_dbr, ab8500_ponkey_handler,
0, "ab8500-ponkey-dbr", ponkey);
if (error < 0) {
dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n",
ponkey->irq_dbr, error);
goto err_free_dbf_irq;
}
error = input_register_device(ponkey->idev);
if (error) {
dev_err(ab8500->dev, "Can't register input device: %d\n", error);
goto err_free_dbr_irq;
}
platform_set_drvdata(pdev, ponkey);
return 0;
err_free_dbr_irq:
free_irq(ponkey->irq_dbr, ponkey);
err_free_dbf_irq:
free_irq(ponkey->irq_dbf, ponkey);
err_free_mem:
input_free_device(input);
kfree(ponkey);
return error;
}
static int __devexit ab8500_ponkey_remove(struct platform_device *pdev)
{
struct ab8500_ponkey *ponkey = platform_get_drvdata(pdev);
free_irq(ponkey->irq_dbf, ponkey);
free_irq(ponkey->irq_dbr, ponkey);
input_unregister_device(ponkey->idev);
kfree(ponkey);
platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver ab8500_ponkey_driver = {
.driver = {
.name = "ab8500-poweron-key",
.owner = THIS_MODULE,
},
.probe = ab8500_ponkey_probe,
.remove = __devexit_p(ab8500_ponkey_remove),
};
static int __init ab8500_ponkey_init(void)
{
return platform_driver_register(&ab8500_ponkey_driver);
}
module_init(ab8500_ponkey_init);
static void __exit ab8500_ponkey_exit(void)
{
platform_driver_unregister(&ab8500_ponkey_driver);
}
module_exit(ab8500_ponkey_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Sundar Iyer <[email protected]>");
MODULE_DESCRIPTION("ST-Ericsson AB8500 Power-ON(Pon) Key driver");

87
drivers/input/misc/ati_remote2.c
View file

@ -483,51 +483,88 @@ static void ati_remote2_complete_key(struct urb *urb)
}
static int ati_remote2_getkeycode(struct input_dev *idev,
unsigned int scancode, unsigned int *keycode)
struct input_keymap_entry *ke)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
unsigned int mode;
int index;
int offset;
unsigned int index;
unsigned int scancode;
mode = scancode >> 8;
if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
return -EINVAL;
if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
index = ke->index;
if (index >= ATI_REMOTE2_MODES *
ARRAY_SIZE(ati_remote2_key_table))
return -EINVAL;
index = ati_remote2_lookup(scancode & 0xFF);
if (index < 0)
return -EINVAL;
mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
} else {
if (input_scancode_to_scalar(ke, &scancode))
return -EINVAL;
mode = scancode >> 8;
if (mode > ATI_REMOTE2_PC)
return -EINVAL;
offset = ati_remote2_lookup(scancode & 0xff);
if (offset < 0)
return -EINVAL;
index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
}
ke->keycode = ar2->keycode[mode][offset];
ke->len = sizeof(scancode);
memcpy(&ke->scancode, &scancode, sizeof(scancode));
ke->index = index;
*keycode = ar2->keycode[mode][index];
return 0;
}
static int ati_remote2_setkeycode(struct input_dev *idev,
unsigned int scancode, unsigned int keycode)
const struct input_keymap_entry *ke,
unsigned int *old_keycode)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
unsigned int mode, old_keycode;
int index;
unsigned int mode;
int offset;
unsigned int index;
unsigned int scancode;
mode = scancode >> 8;
if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
return -EINVAL;
if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
if (ke->index >= ATI_REMOTE2_MODES *
ARRAY_SIZE(ati_remote2_key_table))
return -EINVAL;
index = ati_remote2_lookup(scancode & 0xFF);
if (index < 0)
return -EINVAL;
mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
} else {
if (input_scancode_to_scalar(ke, &scancode))
return -EINVAL;
old_keycode = ar2->keycode[mode][index];
ar2->keycode[mode][index] = keycode;
__set_bit(keycode, idev->keybit);
mode = scancode >> 8;
if (mode > ATI_REMOTE2_PC)
return -EINVAL;
offset = ati_remote2_lookup(scancode & 0xff);
if (offset < 0)
return -EINVAL;
}
*old_keycode = ar2->keycode[mode][offset];
ar2->keycode[mode][offset] = ke->keycode;
__set_bit(ke->keycode, idev->keybit);
for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
if (ar2->keycode[mode][index] == old_keycode)
if (ar2->keycode[mode][index] == *old_keycode)
return 0;
}
}
__clear_bit(old_keycode, idev->keybit);
__clear_bit(*old_keycode, idev->keybit);
return 0;
}
@ -575,8 +612,8 @@ static int ati_remote2_input_init(struct ati_remote2 *ar2)
idev->open = ati_remote2_open;
idev->close = ati_remote2_close;
idev->getkeycode = ati_remote2_getkeycode;
idev->setkeycode = ati_remote2_setkeycode;
idev->getkeycode_new = ati_remote2_getkeycode;
idev->setkeycode_new = ati_remote2_setkeycode;
idev->name = ar2->name;
idev->phys = ar2->phys;

2
drivers/input/misc/powermate.c
View file

@ -280,7 +280,7 @@ static int powermate_alloc_buffers(struct usb_device *udev, struct powermate_dev
pm->configcr = kmalloc(sizeof(*(pm->configcr)), GFP_KERNEL);
if (!pm->configcr)
return -1;
return -ENOMEM;
return 0;
}

2
drivers/input/mouse/elantech.c
View file

@ -699,7 +699,7 @@ int elantech_init(struct psmouse *psmouse)
psmouse->private = etd = kzalloc(sizeof(struct elantech_data), GFP_KERNEL);
if (!etd)
return -1;
return -ENOMEM;
etd->parity[0] = 1;
for (i = 1; i < 256; i++)

4
drivers/input/mouse/psmouse-base.c
View file

@ -1584,10 +1584,10 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
if (!new_dev)
return -ENOMEM;
while (serio->child) {
while (!list_empty(&serio->children)) {
if (++retry > 3) {
printk(KERN_WARNING
"psmouse: failed to destroy child port, "
"psmouse: failed to destroy children ports, "
"protocol change aborted.\n");
input_free_device(new_dev);
return -EIO;

38
drivers/input/mouse/synaptics.c
View file

@ -294,7 +294,29 @@ static int synaptics_pt_write(struct serio *serio, unsigned char c)
return 0;
}
static inline int synaptics_is_pt_packet(unsigned char *buf)
static int synaptics_pt_start(struct serio *serio)
{
struct psmouse *parent = serio_get_drvdata(serio->parent);
struct synaptics_data *priv = parent->private;
serio_pause_rx(parent->ps2dev.serio);
priv->pt_port = serio;
serio_continue_rx(parent->ps2dev.serio);
return 0;
}
static void synaptics_pt_stop(struct serio *serio)
{
struct psmouse *parent = serio_get_drvdata(serio->parent);
struct synaptics_data *priv = parent->private;
serio_pause_rx(parent->ps2dev.serio);
priv->pt_port = NULL;
serio_continue_rx(parent->ps2dev.serio);
}
static int synaptics_is_pt_packet(unsigned char *buf)
{
return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
}
@ -315,9 +337,8 @@ static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet
static void synaptics_pt_activate(struct psmouse *psmouse)
{
struct serio *ptport = psmouse->ps2dev.serio->child;
struct psmouse *child = serio_get_drvdata(ptport);
struct synaptics_data *priv = psmouse->private;
struct psmouse *child = serio_get_drvdata(priv->pt_port);
/* adjust the touchpad to child's choice of protocol */
if (child) {
@ -345,6 +366,8 @@ static void synaptics_pt_create(struct psmouse *psmouse)
strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
serio->write = synaptics_pt_write;
serio->start = synaptics_pt_start;
serio->stop = synaptics_pt_stop;
serio->parent = psmouse->ps2dev.serio;
psmouse->pt_activate = synaptics_pt_activate;
@ -578,9 +601,10 @@ static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
if (unlikely(priv->pkt_type == SYN_NEWABS))
priv->pkt_type = synaptics_detect_pkt_type(psmouse);
if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) {
if (psmouse->ps2dev.serio->child)
synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet);
if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
synaptics_is_pt_packet(psmouse->packet)) {
if (priv->pt_port)
synaptics_pass_pt_packet(priv->pt_port, psmouse->packet);
} else
synaptics_process_packet(psmouse);
@ -731,7 +755,7 @@ int synaptics_init(struct psmouse *psmouse)
psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
if (!priv)
return -1;
return -ENOMEM;
psmouse_reset(psmouse);

2
drivers/input/mouse/synaptics.h
View file

@ -110,6 +110,8 @@ struct synaptics_data {
unsigned char pkt_type; /* packet type - old, new, etc */
unsigned char mode; /* current mode byte */
int scroll;
struct serio *pt_port; /* Pass-through serio port */
};
void synaptics_module_init(void);

2
drivers/input/mouse/trackpoint.c
View file

@ -303,7 +303,7 @@ int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL);
if (!psmouse->private)
return -1;
return -ENOMEM;
psmouse->vendor = "IBM";
psmouse->name = "TrackPoint";

2
drivers/input/mousedev.c
View file

@ -866,7 +866,7 @@ static struct mousedev *mousedev_create(struct input_dev *dev,
spin_lock_init(&mousedev->client_lock);
mutex_init(&mousedev->mutex);
lockdep_set_subclass(&mousedev->mutex,
minor == MOUSEDEV_MIX ? MOUSEDEV_MIX : 0);
minor == MOUSEDEV_MIX ? SINGLE_DEPTH_NESTING : 0);
init_waitqueue_head(&mousedev->wait);
if (minor == MOUSEDEV_MIX)

9
drivers/input/serio/Kconfig
View file

@ -226,4 +226,13 @@ config SERIO_AMS_DELTA
To compile this driver as a module, choose M here;
the module will be called ams_delta_serio.
config SERIO_PS2MULT
tristate "TQC PS/2 multiplexer"
help
Say Y here if you have the PS/2 line multiplexer like the one
present on TQC boads.
To compile this driver as a module, choose M here: the
module will be called ps2mult.
endif

1
drivers/input/serio/Makefile
View file

@ -18,6 +18,7 @@ obj-$(CONFIG_SERIO_GSCPS2) += gscps2.o
obj-$(CONFIG_HP_SDC) += hp_sdc.o
obj-$(CONFIG_HIL_MLC) += hp_sdc_mlc.o hil_mlc.o
obj-$(CONFIG_SERIO_PCIPS2) += pcips2.o
obj-$(CONFIG_SERIO_PS2MULT) += ps2mult.o
obj-$(CONFIG_SERIO_MACEPS2) += maceps2.o
obj-$(CONFIG_SERIO_LIBPS2) += libps2.o
obj-$(CONFIG_SERIO_RAW) += serio_raw.o

2
drivers/input/serio/i8042.c
View file

@ -1063,7 +1063,7 @@ static long i8042_panic_blink(int state)
#ifdef CONFIG_X86
static void i8042_dritek_enable(void)
{
char param = 0x90;
unsigned char param = 0x90;
int error;
error = i8042_command(&param, 0x1059);

318
drivers/input/serio/ps2mult.c Normal file
View file

@ -0,0 +1,318 @@
/*
* TQC PS/2 Multiplexer driver
*
* Copyright (C) 2010 Dmitry Eremin-Solenikov
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/serio.h>
MODULE_AUTHOR("Dmitry Eremin-Solenikov <[email protected]>");
MODULE_DESCRIPTION("TQC PS/2 Multiplexer driver");
MODULE_LICENSE("GPL");
#define PS2MULT_KB_SELECTOR 0xA0
#define PS2MULT_MS_SELECTOR 0xA1
#define PS2MULT_ESCAPE 0x7D
#define PS2MULT_BSYNC 0x7E
#define PS2MULT_SESSION_START 0x55
#define PS2MULT_SESSION_END 0x56
struct ps2mult_port {
struct serio *serio;
unsigned char sel;
bool registered;
};
#define PS2MULT_NUM_PORTS 2
#define PS2MULT_KBD_PORT 0
#define PS2MULT_MOUSE_PORT 1
struct ps2mult {
struct serio *mx_serio;
struct ps2mult_port ports[PS2MULT_NUM_PORTS];
spinlock_t lock;
struct ps2mult_port *in_port;
struct ps2mult_port *out_port;
bool escape;
};
/* First MUST come PS2MULT_NUM_PORTS selectors */
static const unsigned char ps2mult_controls[] = {
PS2MULT_KB_SELECTOR, PS2MULT_MS_SELECTOR,
PS2MULT_ESCAPE, PS2MULT_BSYNC,
PS2MULT_SESSION_START, PS2MULT_SESSION_END,
};
static const struct serio_device_id ps2mult_serio_ids[] = {
{
.type = SERIO_RS232,
.proto = SERIO_PS2MULT,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
MODULE_DEVICE_TABLE(serio, ps2mult_serio_ids);
static void ps2mult_select_port(struct ps2mult *psm, struct ps2mult_port *port)
{
struct serio *mx_serio = psm->mx_serio;
serio_write(mx_serio, port->sel);
psm->out_port = port;
dev_dbg(&mx_serio->dev, "switched to sel %02x\n", port->sel);
}
static int ps2mult_serio_write(struct serio *serio, unsigned char data)
{
struct serio *mx_port = serio->parent;
struct ps2mult *psm = serio_get_drvdata(mx_port);
struct ps2mult_port *port = serio->port_data;
bool need_escape;
unsigned long flags;
spin_lock_irqsave(&psm->lock, flags);
if (psm->out_port != port)
ps2mult_select_port(psm, port);
need_escape = memchr(ps2mult_controls, data, sizeof(ps2mult_controls));
dev_dbg(&serio->dev,
"write: %s%02x\n", need_escape ? "ESC " : "", data);
if (need_escape)
serio_write(mx_port, PS2MULT_ESCAPE);
serio_write(mx_port, data);
spin_unlock_irqrestore(&psm->lock, flags);
return 0;
}
static int ps2mult_serio_start(struct serio *serio)
{
struct ps2mult *psm = serio_get_drvdata(serio->parent);
struct ps2mult_port *port = serio->port_data;
unsigned long flags;
spin_lock_irqsave(&psm->lock, flags);
port->registered = true;
spin_unlock_irqrestore(&psm->lock, flags);
return 0;
}
static void ps2mult_serio_stop(struct serio *serio)
{
struct ps2mult *psm = serio_get_drvdata(serio->parent);
struct ps2mult_port *port = serio->port_data;
unsigned long flags;
spin_lock_irqsave(&psm->lock, flags);
port->registered = false;
spin_unlock_irqrestore(&psm->lock, flags);
}
static int ps2mult_create_port(struct ps2mult *psm, int i)
{
struct serio *mx_serio = psm->mx_serio;
struct serio *serio;
serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
if (!serio)
return -ENOMEM;
strlcpy(serio->name, "TQC PS/2 Multiplexer", sizeof(serio->name));
snprintf(serio->phys, sizeof(serio->phys),
"%s/port%d", mx_serio->phys, i);
serio->id.type = SERIO_8042;
serio->write = ps2mult_serio_write;
serio->start = ps2mult_serio_start;
serio->stop = ps2mult_serio_stop;
serio->parent = psm->mx_serio;
serio->port_data = &psm->ports[i];
psm->ports[i].serio = serio;
return 0;
}
static void ps2mult_reset(struct ps2mult *psm)
{
unsigned long flags;
spin_lock_irqsave(&psm->lock, flags);
serio_write(psm->mx_serio, PS2MULT_SESSION_END);
serio_write(psm->mx_serio, PS2MULT_SESSION_START);
ps2mult_select_port(psm, &psm->ports[PS2MULT_KBD_PORT]);
spin_unlock_irqrestore(&psm->lock, flags);
}
static int ps2mult_connect(struct serio *serio, struct serio_driver *drv)
{
struct ps2mult *psm;
int i;
int error;
if (!serio->write)
return -EINVAL;
psm = kzalloc(sizeof(*psm), GFP_KERNEL);
if (!psm)
return -ENOMEM;
spin_lock_init(&psm->lock);
psm->mx_serio = serio;
for (i = 0; i < PS2MULT_NUM_PORTS; i++) {
psm->ports[i].sel = ps2mult_controls[i];
error = ps2mult_create_port(psm, i);
if (error)
goto err_out;
}
psm->in_port = psm->out_port = &psm->ports[PS2MULT_KBD_PORT];
serio_set_drvdata(serio, psm);
error = serio_open(serio, drv);
if (error)
goto err_out;
ps2mult_reset(psm);
for (i = 0; i < PS2MULT_NUM_PORTS; i++) {
struct serio *s = psm->ports[i].serio;
dev_info(&serio->dev, "%s port at %s\n", s->name, serio->phys);
serio_register_port(s);
}
return 0;
err_out:
while (--i >= 0)
kfree(psm->ports[i].serio);
kfree(serio);
return error;
}
static void ps2mult_disconnect(struct serio *serio)
{
struct ps2mult *psm = serio_get_drvdata(serio);
/* Note that serio core already take care of children ports */
serio_write(serio, PS2MULT_SESSION_END);
serio_close(serio);
kfree(psm);
serio_set_drvdata(serio, NULL);
}
static int ps2mult_reconnect(struct serio *serio)
{
struct ps2mult *psm = serio_get_drvdata(serio);
ps2mult_reset(psm);
return 0;
}
static irqreturn_t ps2mult_interrupt(struct serio *serio,
unsigned char data, unsigned int dfl)
{
struct ps2mult *psm = serio_get_drvdata(serio);
struct ps2mult_port *in_port;
unsigned long flags;
dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, dfl);
spin_lock_irqsave(&psm->lock, flags);
if (psm->escape) {
psm->escape = false;
in_port = psm->in_port;
if (in_port->registered)
serio_interrupt(in_port->serio, data, dfl);
goto out;
}
switch (data) {
case PS2MULT_ESCAPE:
dev_dbg(&serio->dev, "ESCAPE\n");
psm->escape = true;
break;
case PS2MULT_BSYNC:
dev_dbg(&serio->dev, "BSYNC\n");
psm->in_port = psm->out_port;
break;
case PS2MULT_SESSION_START:
dev_dbg(&serio->dev, "SS\n");
break;
case PS2MULT_SESSION_END:
dev_dbg(&serio->dev, "SE\n");
break;
case PS2MULT_KB_SELECTOR:
dev_dbg(&serio->dev, "KB\n");
psm->in_port = &psm->ports[PS2MULT_KBD_PORT];
break;
case PS2MULT_MS_SELECTOR:
dev_dbg(&serio->dev, "MS\n");
psm->in_port = &psm->ports[PS2MULT_MOUSE_PORT];
break;
default:
in_port = psm->in_port;
if (in_port->registered)
serio_interrupt(in_port->serio, data, dfl);
break;
}
out:
spin_unlock_irqrestore(&psm->lock, flags);
return IRQ_HANDLED;
}
static struct serio_driver ps2mult_drv = {
.driver = {
.name = "ps2mult",
},
.description = "TQC PS/2 Multiplexer driver",
.id_table = ps2mult_serio_ids,
.interrupt = ps2mult_interrupt,
.connect = ps2mult_connect,
.disconnect = ps2mult_disconnect,
.reconnect = ps2mult_reconnect,
};
static int __init ps2mult_init(void)
{
return serio_register_driver(&ps2mult_drv);
}
static void __exit ps2mult_exit(void)
{
serio_unregister_driver(&ps2mult_drv);
}
module_init(ps2mult_init);
module_exit(ps2mult_exit);

125
drivers/input/serio/serio.c
View file

@ -37,7 +37,6 @@
#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/freezer.h>
MODULE_AUTHOR("Vojtech Pavlik <[email protected]>");
MODULE_DESCRIPTION("Serio abstraction core");
@ -56,7 +55,7 @@ static struct bus_type serio_bus;
static void serio_add_port(struct serio *serio);
static int serio_reconnect_port(struct serio *serio);
static void serio_disconnect_port(struct serio *serio);
static void serio_reconnect_chain(struct serio *serio);
static void serio_reconnect_subtree(struct serio *serio);
static void serio_attach_driver(struct serio_driver *drv);
static int serio_connect_driver(struct serio *serio, struct serio_driver *drv)
@ -152,7 +151,7 @@ static void serio_find_driver(struct serio *serio)
enum serio_event_type {
SERIO_RESCAN_PORT,
SERIO_RECONNECT_PORT,
SERIO_RECONNECT_CHAIN,
SERIO_RECONNECT_SUBTREE,
SERIO_REGISTER_PORT,
SERIO_ATTACH_DRIVER,
};
@ -292,8 +291,8 @@ static void serio_handle_event(void)
serio_find_driver(event->object);
break;
case SERIO_RECONNECT_CHAIN:
serio_reconnect_chain(event->object);
case SERIO_RECONNECT_SUBTREE:
serio_reconnect_subtree(event->object);
break;
case SERIO_ATTACH_DRIVER:
@ -330,12 +329,10 @@ static void serio_remove_pending_events(void *object)
}
/*
* Destroy child serio port (if any) that has not been fully registered yet.
* Locate child serio port (if any) that has not been fully registered yet.
*
* Note that we rely on the fact that port can have only one child and therefore
* only one child registration request can be pending. Additionally, children
* are registered by driver's connect() handler so there can't be a grandchild
* pending registration together with a child.
* Children are registered by driver's connect() handler so there can't be a
* grandchild pending registration together with a child.
*/
static struct serio *serio_get_pending_child(struct serio *parent)
{
@ -449,7 +446,7 @@ static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *
if (!strncmp(buf, "none", count)) {
serio_disconnect_port(serio);
} else if (!strncmp(buf, "reconnect", count)) {
serio_reconnect_chain(serio);
serio_reconnect_subtree(serio);
} else if (!strncmp(buf, "rescan", count)) {
serio_disconnect_port(serio);
serio_find_driver(serio);
@ -516,6 +513,8 @@ static void serio_init_port(struct serio *serio)
__module_get(THIS_MODULE);
INIT_LIST_HEAD(&serio->node);
INIT_LIST_HEAD(&serio->child_node);
INIT_LIST_HEAD(&serio->children);
spin_lock_init(&serio->lock);
mutex_init(&serio->drv_mutex);
device_initialize(&serio->dev);
@ -538,12 +537,13 @@ static void serio_init_port(struct serio *serio)
*/
static void serio_add_port(struct serio *serio)
{
struct serio *parent = serio->parent;
int error;
if (serio->parent) {
serio_pause_rx(serio->parent);
serio->parent->child = serio;
serio_continue_rx(serio->parent);
if (parent) {
serio_pause_rx(parent);
list_add_tail(&serio->child_node, &parent->children);
serio_continue_rx(parent);
}
list_add_tail(&serio->node, &serio_list);
@ -559,15 +559,14 @@ static void serio_add_port(struct serio *serio)
}
/*
* serio_destroy_port() completes deregistration process and removes
* serio_destroy_port() completes unregistration process and removes
* port from the system
*/
static void serio_destroy_port(struct serio *serio)
{
struct serio *child;
child = serio_get_pending_child(serio);
if (child) {
while ((child = serio_get_pending_child(serio)) != NULL) {
serio_remove_pending_events(child);
put_device(&child->dev);
}
@ -577,7 +576,7 @@ static void serio_destroy_port(struct serio *serio)
if (serio->parent) {
serio_pause_rx(serio->parent);
serio->parent->child = NULL;
list_del_init(&serio->child_node);
serio_continue_rx(serio->parent);
serio->parent = NULL;
}
@ -609,46 +608,82 @@ static int serio_reconnect_port(struct serio *serio)
}
/*
* Reconnect serio port and all its children (re-initialize attached devices)
* Reconnect serio port and all its children (re-initialize attached
* devices).
*/
static void serio_reconnect_chain(struct serio *serio)
static void serio_reconnect_subtree(struct serio *root)
{
struct serio *s = root;
int error;
do {
if (serio_reconnect_port(serio)) {
/* Ok, old children are now gone, we are done */
break;
error = serio_reconnect_port(s);
if (!error) {
/*
* Reconnect was successful, move on to do the
* first child.
*/
if (!list_empty(&s->children)) {
s = list_first_entry(&s->children,
struct serio, child_node);
continue;
}
}
serio = serio->child;
} while (serio);
/*
* Either it was a leaf node or reconnect failed and it
* became a leaf node. Continue reconnecting starting with
* the next sibling of the parent node.
*/
while (s != root) {
struct serio *parent = s->parent;
if (!list_is_last(&s->child_node, &parent->children)) {
s = list_entry(s->child_node.next,
struct serio, child_node);
break;
}
s = parent;
}
} while (s != root);
}
/*
* serio_disconnect_port() unbinds a port from its driver. As a side effect
* all child ports are unbound and destroyed.
* all children ports are unbound and destroyed.
*/
static void serio_disconnect_port(struct serio *serio)
{
struct serio *s, *parent;
struct serio *s = serio;
/*
* Children ports should be disconnected and destroyed
* first; we travel the tree in depth-first order.
*/
while (!list_empty(&serio->children)) {
/* Locate a leaf */
while (!list_empty(&s->children))
s = list_first_entry(&s->children,
struct serio, child_node);
if (serio->child) {
/*
* Children ports should be disconnected and destroyed
* first, staring with the leaf one, since we don't want
* to do recursion
* Prune this leaf node unless it is the one we
* started with.
*/
for (s = serio; s->child; s = s->child)
/* empty */;
do {
parent = s->parent;
if (s != serio) {
struct serio *parent = s->parent;
device_release_driver(&s->dev);
serio_destroy_port(s);
} while ((s = parent) != serio);
s = parent;
}
}
/*
* Ok, no children left, now disconnect this port
* OK, no children left, now disconnect this port.
*/
device_release_driver(&serio->dev);
}
@ -661,7 +696,7 @@ EXPORT_SYMBOL(serio_rescan);
void serio_reconnect(struct serio *serio)
{
serio_queue_event(serio, NULL, SERIO_RECONNECT_CHAIN);
serio_queue_event(serio, NULL, SERIO_RECONNECT_SUBTREE);
}
EXPORT_SYMBOL(serio_reconnect);
@ -689,14 +724,16 @@ void serio_unregister_port(struct serio *serio)
EXPORT_SYMBOL(serio_unregister_port);
/*
* Safely unregisters child port if one is present.
* Safely unregisters children ports if they are present.
*/
void serio_unregister_child_port(struct serio *serio)
{
struct serio *s, *next;
mutex_lock(&serio_mutex);
if (serio->child) {
serio_disconnect_port(serio->child);
serio_destroy_port(serio->child);
list_for_each_entry_safe(s, next, &serio->children, child_node) {
serio_disconnect_port(s);
serio_destroy_port(s);
}
mutex_unlock(&serio_mutex);
}

81
drivers/input/sparse-keymap.c
View file

@ -22,6 +22,37 @@ MODULE_DESCRIPTION("Generic support for sparse keymaps");
MODULE_LICENSE("GPL v2");
MODULE_VERSION("0.1");
static unsigned int sparse_keymap_get_key_index(struct input_dev *dev,
const struct key_entry *k)
{
struct key_entry *key;
unsigned int idx = 0;
for (key = dev->keycode; key->type != KE_END; key++) {
if (key->type == KE_KEY) {
if (key == k)
break;
idx++;
}
}
return idx;
}
static struct key_entry *sparse_keymap_entry_by_index(struct input_dev *dev,
unsigned int index)
{
struct key_entry *key;
unsigned int key_cnt = 0;
for (key = dev->keycode; key->type != KE_END; key++)
if (key->type == KE_KEY)
if (key_cnt++ == index)
return key;
return NULL;
}
/**
* sparse_keymap_entry_from_scancode - perform sparse keymap lookup
* @dev: Input device using sparse keymap
@ -64,16 +95,36 @@ struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev,
}
EXPORT_SYMBOL(sparse_keymap_entry_from_keycode);
static struct key_entry *sparse_keymap_locate(struct input_dev *dev,
const struct input_keymap_entry *ke)
{
struct key_entry *key;
unsigned int scancode;
if (ke->flags & INPUT_KEYMAP_BY_INDEX)
key = sparse_keymap_entry_by_index(dev, ke->index);
else if (input_scancode_to_scalar(ke, &scancode) == 0)
key = sparse_keymap_entry_from_scancode(dev, scancode);
else
key = NULL;
return key;
}
static int sparse_keymap_getkeycode(struct input_dev *dev,
unsigned int scancode,
unsigned int *keycode)
struct input_keymap_entry *ke)
{
const struct key_entry *key;
if (dev->keycode) {
key = sparse_keymap_entry_from_scancode(dev, scancode);
key = sparse_keymap_locate(dev, ke);
if (key && key->type == KE_KEY) {
*keycode = key->keycode;
ke->keycode = key->keycode;
if (!(ke->flags & INPUT_KEYMAP_BY_INDEX))
ke->index =
sparse_keymap_get_key_index(dev, key);
ke->len = sizeof(key->code);
memcpy(ke->scancode, &key->code, sizeof(key->code));
return 0;
}
}
@ -82,20 +133,19 @@ static int sparse_keymap_getkeycode(struct input_dev *dev,
}
static int sparse_keymap_setkeycode(struct input_dev *dev,
unsigned int scancode,
unsigned int keycode)
const struct input_keymap_entry *ke,
unsigned int *old_keycode)
{
struct key_entry *key;
int old_keycode;
if (dev->keycode) {
key = sparse_keymap_entry_from_scancode(dev, scancode);
key = sparse_keymap_locate(dev, ke);
if (key && key->type == KE_KEY) {
old_keycode = key->keycode;
key->keycode = keycode;
set_bit(keycode, dev->keybit);
if (!sparse_keymap_entry_from_keycode(dev, old_keycode))
clear_bit(old_keycode, dev->keybit);
*old_keycode = key->keycode;
key->keycode = ke->keycode;
set_bit(ke->keycode, dev->keybit);
if (!sparse_keymap_entry_from_keycode(dev, *old_keycode))
clear_bit(*old_keycode, dev->keybit);
return 0;
}
}
@ -159,15 +209,14 @@ int sparse_keymap_setup(struct input_dev *dev,
dev->keycode = map;
dev->keycodemax = map_size;
dev->getkeycode = sparse_keymap_getkeycode;
dev->setkeycode = sparse_keymap_setkeycode;
dev->getkeycode_new = sparse_keymap_getkeycode;
dev->setkeycode_new = sparse_keymap_setkeycode;
return 0;
err_out:
kfree(map);
return error;
}
EXPORT_SYMBOL(sparse_keymap_setup);

11
drivers/input/tablet/Kconfig
View file

@ -49,6 +49,17 @@ config TABLET_USB_GTCO
To compile this driver as a module, choose M here: the
module will be called gtco.
config TABLET_USB_HANWANG
tristate "Hanwang Art Master III tablet support (USB)"
depends on USB_ARCH_HAS_HCD
select USB
help
Say Y here if you want to use the USB version of the Hanwang Art
Master III tablet.
To compile this driver as a module, choose M here: the
module will be called hanwang.
config TABLET_USB_KBTAB
tristate "KB Gear JamStudio tablet support (USB)"
depends on USB_ARCH_HAS_HCD

1
drivers/input/tablet/Makefile
View file

@ -8,5 +8,6 @@ wacom-objs := wacom_wac.o wacom_sys.o
obj-$(CONFIG_TABLET_USB_ACECAD) += acecad.o
obj-$(CONFIG_TABLET_USB_AIPTEK) += aiptek.o
obj-$(CONFIG_TABLET_USB_GTCO) += gtco.o
obj-$(CONFIG_TABLET_USB_HANWANG) += hanwang.o
obj-$(CONFIG_TABLET_USB_KBTAB) += kbtab.o
obj-$(CONFIG_TABLET_USB_WACOM) += wacom.o

446
drivers/input/tablet/hanwang.c Normal file
View file

@ -0,0 +1,446 @@
/*
* USB Hanwang tablet support
*
* Copyright (c) 2010 Xing Wei <weixing@hanwang.com.cn>
*
*/
/*
* 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 option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/usb/input.h>
#define DRIVER_AUTHOR "Xing Wei <[email protected]>"
#define DRIVER_DESC "USB Hanwang tablet driver"
#define DRIVER_LICENSE "GPL"
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE(DRIVER_LICENSE);
#define USB_VENDOR_ID_HANWANG 0x0b57
#define HANWANG_TABLET_INT_CLASS 0x0003
#define HANWANG_TABLET_INT_SUB_CLASS 0x0001
#define HANWANG_TABLET_INT_PROTOCOL 0x0002
#define ART_MASTER_PKGLEN_MAX 10
/* device IDs */
#define STYLUS_DEVICE_ID 0x02
#define TOUCH_DEVICE_ID 0x03
#define CURSOR_DEVICE_ID 0x06
#define ERASER_DEVICE_ID 0x0A
#define PAD_DEVICE_ID 0x0F
/* match vendor and interface info */
#define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \
.match_flags = USB_DEVICE_ID_MATCH_VENDOR \
| USB_DEVICE_ID_MATCH_INT_INFO, \
.idVendor = (vend), \
.bInterfaceClass = (cl), \
.bInterfaceSubClass = (sc), \
.bInterfaceProtocol = (pr)
enum hanwang_tablet_type {
HANWANG_ART_MASTER_III,
HANWANG_ART_MASTER_HD,
};
struct hanwang {
unsigned char *data;
dma_addr_t data_dma;
struct input_dev *dev;
struct usb_device *usbdev;
struct urb *irq;
const struct hanwang_features *features;
unsigned int current_tool;
unsigned int current_id;
char name[64];
char phys[32];
};
struct hanwang_features {
unsigned short pid;
char *name;
enum hanwang_tablet_type type;
int pkg_len;
int max_x;
int max_y;
int max_tilt_x;
int max_tilt_y;
int max_pressure;
};
static const struct hanwang_features features_array[] = {
{ 0x8528, "Hanwang Art Master III 0906", HANWANG_ART_MASTER_III,
ART_MASTER_PKGLEN_MAX, 0x5757, 0x3692, 0x3f, 0x7f, 2048 },
{ 0x8529, "Hanwang Art Master III 0604", HANWANG_ART_MASTER_III,
ART_MASTER_PKGLEN_MAX, 0x3d84, 0x2672, 0x3f, 0x7f, 2048 },
{ 0x852a, "Hanwang Art Master III 1308", HANWANG_ART_MASTER_III,
ART_MASTER_PKGLEN_MAX, 0x7f00, 0x4f60, 0x3f, 0x7f, 2048 },
{ 0x8401, "Hanwang Art Master HD 5012", HANWANG_ART_MASTER_HD,
ART_MASTER_PKGLEN_MAX, 0x678e, 0x4150, 0x3f, 0x7f, 1024 },
};
static const int hw_eventtypes[] = {
EV_KEY, EV_ABS, EV_MSC,
};
static const int hw_absevents[] = {
ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL,
ABS_RX, ABS_RY, ABS_PRESSURE, ABS_MISC,
};
static const int hw_btnevents[] = {
BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER,
BTN_TOOL_MOUSE, BTN_TOOL_FINGER,
BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8,
};
static const int hw_mscevents[] = {
MSC_SERIAL,
};
static void hanwang_parse_packet(struct hanwang *hanwang)
{
unsigned char *data = hanwang->data;
struct input_dev *input_dev = hanwang->dev;
struct usb_device *dev = hanwang->usbdev;
enum hanwang_tablet_type type = hanwang->features->type;
int i;
u16 x, y, p;
switch (data[0]) {
case 0x02: /* data packet */
switch (data[1]) {
case 0x80: /* tool prox out */
hanwang->current_id = 0;
input_report_key(input_dev, hanwang->current_tool, 0);
break;
case 0xc2: /* first time tool prox in */
switch (data[3] & 0xf0) {
case 0x20: /* art_master III */
case 0x30: /* art_master_HD */
hanwang->current_id = STYLUS_DEVICE_ID;
hanwang->current_tool = BTN_TOOL_PEN;
input_report_key(input_dev, BTN_TOOL_PEN, 1);
break;
case 0xa0: /* art_master III */
case 0xb0: /* art_master_HD */
hanwang->current_id = ERASER_DEVICE_ID;
hanwang->current_tool = BTN_TOOL_RUBBER;
input_report_key(input_dev, BTN_TOOL_RUBBER, 1);
break;
default:
hanwang->current_id = 0;
dev_dbg(&dev->dev,
"unknown tablet tool %02x ", data[0]);
break;
}
break;
default: /* tool data packet */
x = (data[2] << 8) | data[3];
y = (data[4] << 8) | data[5];
switch (type) {
case HANWANG_ART_MASTER_III:
p = (data[6] << 3) |
((data[7] & 0xc0) >> 5) |
(data[1] & 0x01);
break;
case HANWANG_ART_MASTER_HD:
p = (data[7] >> 6) | (data[6] << 2);
break;
default:
p = 0;
break;
}
input_report_abs(input_dev, ABS_X,
le16_to_cpup((__le16 *)&x));
input_report_abs(input_dev, ABS_Y,
le16_to_cpup((__le16 *)&y));
input_report_abs(input_dev, ABS_PRESSURE,
le16_to_cpup((__le16 *)&p));
input_report_abs(input_dev, ABS_TILT_X, data[7] & 0x3f);
input_report_abs(input_dev, ABS_TILT_Y, data[8] & 0x7f);
input_report_key(input_dev, BTN_STYLUS, data[1] & 0x02);
input_report_key(input_dev, BTN_STYLUS2, data[1] & 0x04);
break;
}
input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
input_event(input_dev, EV_MSC, MSC_SERIAL,
hanwang->features->pid);
break;
case 0x0c:
/* roll wheel */
hanwang->current_id = PAD_DEVICE_ID;
switch (type) {
case HANWANG_ART_MASTER_III:
input_report_key(input_dev, BTN_TOOL_FINGER, data[1] ||
data[2] || data[3]);
input_report_abs(input_dev, ABS_WHEEL, data[1]);
input_report_key(input_dev, BTN_0, data[2]);
for (i = 0; i < 8; i++)
input_report_key(input_dev,
BTN_1 + i, data[3] & (1 << i));
break;
case HANWANG_ART_MASTER_HD:
input_report_key(input_dev, BTN_TOOL_FINGER, data[1] ||
data[2] || data[3] || data[4] ||
data[5] || data[6]);
input_report_abs(input_dev, ABS_RX,
((data[1] & 0x1f) << 8) | data[2]);
input_report_abs(input_dev, ABS_RY,
((data[3] & 0x1f) << 8) | data[4]);
input_report_key(input_dev, BTN_0, data[5] & 0x01);
for (i = 0; i < 4; i++) {
input_report_key(input_dev,
BTN_1 + i, data[5] & (1 << i));
input_report_key(input_dev,
BTN_5 + i, data[6] & (1 << i));
}
break;
}
input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
input_event(input_dev, EV_MSC, MSC_SERIAL, 0xffffffff);
break;
default:
dev_dbg(&dev->dev, "error packet %02x ", data[0]);
break;
}
input_sync(input_dev);
}
static void hanwang_irq(struct urb *urb)
{
struct hanwang *hanwang = urb->context;
struct usb_device *dev = hanwang->usbdev;
int retval;
switch (urb->status) {
case 0:
/* success */;
hanwang_parse_packet(hanwang);
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dev_err(&dev->dev, "%s - urb shutting down with status: %d",
__func__, urb->status);
return;
default:
dev_err(&dev->dev, "%s - nonzero urb status received: %d",
__func__, urb->status);
break;
}
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
dev_err(&dev->dev, "%s - usb_submit_urb failed with result %d",
__func__, retval);
}
static int hanwang_open(struct input_dev *dev)
{
struct hanwang *hanwang = input_get_drvdata(dev);
hanwang->irq->dev = hanwang->usbdev;
if (usb_submit_urb(hanwang->irq, GFP_KERNEL))
return -EIO;
return 0;
}
static void hanwang_close(struct input_dev *dev)
{
struct hanwang *hanwang = input_get_drvdata(dev);
usb_kill_urb(hanwang->irq);
}
static bool get_features(struct usb_device *dev, struct hanwang *hanwang)
{
int i;
for (i = 0; i < ARRAY_SIZE(features_array); i++) {
if (le16_to_cpu(dev->descriptor.idProduct) ==
features_array[i].pid) {
hanwang->features = &features_array[i];
return true;
}
}
return false;
}
static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_endpoint_descriptor *endpoint;
struct hanwang *hanwang;
struct input_dev *input_dev;
int error;
int i;
hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL);
input_dev = input_allocate_device();
if (!hanwang || !input_dev) {
error = -ENOMEM;
goto fail1;
}
if (!get_features(dev, hanwang)) {
error = -ENXIO;
goto fail1;
}
hanwang->data = usb_alloc_coherent(dev, hanwang->features->pkg_len,
GFP_KERNEL, &hanwang->data_dma);
if (!hanwang->data) {
error = -ENOMEM;
goto fail1;
}
hanwang->irq = usb_alloc_urb(0, GFP_KERNEL);
if (!hanwang->irq) {
error = -ENOMEM;
goto fail2;
}
hanwang->usbdev = dev;
hanwang->dev = input_dev;
usb_make_path(dev, hanwang->phys, sizeof(hanwang->phys));
strlcat(hanwang->phys, "/input0", sizeof(hanwang->phys));
strlcpy(hanwang->name, hanwang->features->name, sizeof(hanwang->name));
input_dev->name = hanwang->name;
input_dev->phys = hanwang->phys;
usb_to_input_id(dev, &input_dev->id);
input_dev->dev.parent = &intf->dev;
input_set_drvdata(input_dev, hanwang);
input_dev->open = hanwang_open;
input_dev->close = hanwang_close;
for (i = 0; i < ARRAY_SIZE(hw_eventtypes); ++i)
__set_bit(hw_eventtypes[i], input_dev->evbit);
for (i = 0; i < ARRAY_SIZE(hw_absevents); ++i)
__set_bit(hw_absevents[i], input_dev->absbit);
for (i = 0; i < ARRAY_SIZE(hw_btnevents); ++i)
__set_bit(hw_btnevents[i], input_dev->keybit);
for (i = 0; i < ARRAY_SIZE(hw_mscevents); ++i)
__set_bit(hw_mscevents[i], input_dev->mscbit);
input_set_abs_params(input_dev, ABS_X,
0, hanwang->features->max_x, 4, 0);
input_set_abs_params(input_dev, ABS_Y,
0, hanwang->features->max_y, 4, 0);
input_set_abs_params(input_dev, ABS_TILT_X,
0, hanwang->features->max_tilt_x, 0, 0);
input_set_abs_params(input_dev, ABS_TILT_Y,
0, hanwang->features->max_tilt_y, 0, 0);
input_set_abs_params(input_dev, ABS_PRESSURE,
0, hanwang->features->max_pressure, 0, 0);
endpoint = &intf->cur_altsetting->endpoint[0].desc;
usb_fill_int_urb(hanwang->irq, dev,
usb_rcvintpipe(dev, endpoint->bEndpointAddress),
hanwang->data, hanwang->features->pkg_len,
hanwang_irq, hanwang, endpoint->bInterval);
hanwang->irq->transfer_dma = hanwang->data_dma;
hanwang->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
error = input_register_device(hanwang->dev);
if (error)
goto fail3;
usb_set_intfdata(intf, hanwang);
return 0;
fail3: usb_free_urb(hanwang->irq);
fail2: usb_free_coherent(dev, hanwang->features->pkg_len,
hanwang->data, hanwang->data_dma);
fail1: input_free_device(input_dev);
kfree(hanwang);
return error;
}
static void hanwang_disconnect(struct usb_interface *intf)
{
struct hanwang *hanwang = usb_get_intfdata(intf);
input_unregister_device(hanwang->dev);
usb_free_urb(hanwang->irq);
usb_free_coherent(interface_to_usbdev(intf),
hanwang->features->pkg_len, hanwang->data,
hanwang->data_dma);
kfree(hanwang);
usb_set_intfdata(intf, NULL);
}
static const struct usb_device_id hanwang_ids[] = {
{ HANWANG_TABLET_DEVICE(USB_VENDOR_ID_HANWANG, HANWANG_TABLET_INT_CLASS,
HANWANG_TABLET_INT_SUB_CLASS, HANWANG_TABLET_INT_PROTOCOL) },
{}
};
MODULE_DEVICE_TABLE(usb, hanwang_ids);
static struct usb_driver hanwang_driver = {
.name = "hanwang",
.probe = hanwang_probe,
.disconnect = hanwang_disconnect,
.id_table = hanwang_ids,
};
static int __init hanwang_init(void)
{
return usb_register(&hanwang_driver);
}
static void __exit hanwang_exit(void)
{
usb_deregister(&hanwang_driver);
}
module_init(hanwang_init);
module_exit(hanwang_exit);

1
drivers/input/tablet/wacom.h
View file

@ -118,6 +118,7 @@ struct wacom {
extern const struct usb_device_id wacom_ids[];
void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
void wacom_setup_device_quirks(struct wacom_features *features);
void wacom_setup_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac);
#endif

75
drivers/input/tablet/wacom_sys.c
View file

@ -120,14 +120,16 @@ static int wacom_open(struct input_dev *dev)
out:
mutex_unlock(&wacom->lock);
if (retval)
usb_autopm_put_interface(wacom->intf);
usb_autopm_put_interface(wacom->intf);
return retval;
}
static void wacom_close(struct input_dev *dev)
{
struct wacom *wacom = input_get_drvdata(dev);
int autopm_error;
autopm_error = usb_autopm_get_interface(wacom->intf);
mutex_lock(&wacom->lock);
usb_kill_urb(wacom->irq);
@ -135,7 +137,8 @@ static void wacom_close(struct input_dev *dev)
wacom->intf->needs_remote_wakeup = 0;
mutex_unlock(&wacom->lock);
usb_autopm_put_interface(wacom->intf);
if (!autopm_error)
usb_autopm_put_interface(wacom->intf);
}
static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc,
@ -196,17 +199,30 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
features->pktlen = WACOM_PKGLEN_TPC2FG;
features->device_type = BTN_TOOL_TRIPLETAP;
}
features->x_max =
get_unaligned_le16(&report[i + 3]);
features->x_phy =
get_unaligned_le16(&report[i + 6]);
features->unit = report[i + 9];
features->unitExpo = report[i + 11];
i += 12;
if (features->type == BAMBOO_PT) {
/* need to reset back */
features->pktlen = WACOM_PKGLEN_BBTOUCH;
features->device_type = BTN_TOOL_TRIPLETAP;
features->x_phy =
get_unaligned_le16(&report[i + 5]);
features->x_max =
get_unaligned_le16(&report[i + 8]);
i += 15;
} else {
features->x_max =
get_unaligned_le16(&report[i + 3]);
features->x_phy =
get_unaligned_le16(&report[i + 6]);
features->unit = report[i + 9];
features->unitExpo = report[i + 11];
i += 12;
}
} else if (pen) {
/* penabled only accepts exact bytes of data */
if (features->type == TABLETPC2FG)
features->pktlen = WACOM_PKGLEN_GRAPHIRE;
if (features->type == BAMBOO_PT)
features->pktlen = WACOM_PKGLEN_BBFUN;
features->device_type = BTN_TOOL_PEN;
features->x_max =
get_unaligned_le16(&report[i + 3]);
@ -235,6 +251,15 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
features->y_phy =
get_unaligned_le16(&report[i + 6]);
i += 7;
} else if (features->type == BAMBOO_PT) {
/* need to reset back */
features->pktlen = WACOM_PKGLEN_BBTOUCH;
features->device_type = BTN_TOOL_TRIPLETAP;
features->y_phy =
get_unaligned_le16(&report[i + 3]);
features->y_max =
get_unaligned_le16(&report[i + 6]);
i += 12;
} else {
features->y_max =
features->x_max;
@ -246,6 +271,8 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
/* penabled only accepts exact bytes of data */
if (features->type == TABLETPC2FG)
features->pktlen = WACOM_PKGLEN_GRAPHIRE;
if (features->type == BAMBOO_PT)
features->pktlen = WACOM_PKGLEN_BBFUN;
features->device_type = BTN_TOOL_PEN;
features->y_max =
get_unaligned_le16(&report[i + 3]);
@ -296,8 +323,9 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
if (!rep_data)
return error;
/* ask to report tablet data if it is 2FGT or not a Tablet PC */
if (features->device_type == BTN_TOOL_TRIPLETAP) {
/* ask to report tablet data if it is 2FGT Tablet PC or
* not a Tablet PC */
if (features->type == TABLETPC2FG) {
do {
rep_data[0] = 3;
rep_data[1] = 4;
@ -309,7 +337,7 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
WAC_HID_FEATURE_REPORT, report_id,
rep_data, 3);
} while ((error < 0 || rep_data[1] != 4) && limit++ < 5);
} else if (features->type != TABLETPC && features->type != TABLETPC2FG) {
} else if (features->type != TABLETPC) {
do {
rep_data[0] = 2;
rep_data[1] = 2;
@ -334,11 +362,16 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
struct usb_host_interface *interface = intf->cur_altsetting;
struct hid_descriptor *hid_desc;
/* default device to penabled */
/* default features */
features->device_type = BTN_TOOL_PEN;
features->x_fuzz = 4;
features->y_fuzz = 4;
features->pressure_fuzz = 0;
features->distance_fuzz = 0;
/* only Tablet PCs need to retrieve the info */
if ((features->type != TABLETPC) && (features->type != TABLETPC2FG))
/* only Tablet PCs and Bamboo P&T need to retrieve the info */
if ((features->type != TABLETPC) && (features->type != TABLETPC2FG) &&
(features->type != BAMBOO_PT))
goto out;
if (usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc)) {
@ -353,12 +386,6 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
if (error)
goto out;
/* touch device found but size is not defined. use default */
if (features->device_type == BTN_TOOL_DOUBLETAP && !features->x_max) {
features->x_max = 1023;
features->y_max = 1023;
}
out:
return error;
}
@ -494,9 +521,11 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
if (error)
goto fail2;
wacom_setup_device_quirks(features);
strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
if (features->type == TABLETPC || features->type == TABLETPC2FG) {
if (features->quirks & WACOM_QUIRK_MULTI_INPUT) {
/* Append the device type to the name */
strlcat(wacom_wac->name,
features->device_type == BTN_TOOL_PEN ?

253
drivers/input/tablet/wacom_wac.c
View file

@ -857,6 +857,134 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
return retval;
}
static int wacom_bpt_touch(struct wacom_wac *wacom)
{
struct wacom_features *features = &wacom->features;
struct input_dev *input = wacom->input;
unsigned char *data = wacom->data;
int sp = 0, sx = 0, sy = 0, count = 0;
int i;
for (i = 0; i < 2; i++) {
int p = data[9 * i + 2];
input_mt_slot(input, i);
/*
* Touch events need to be disabled while stylus is
* in proximity because user's hand is resting on touchpad
* and sending unwanted events. User expects tablet buttons
* to continue working though.
*/
if (p && !wacom->shared->stylus_in_proximity) {
int x = get_unaligned_be16(&data[9 * i + 3]) & 0x7ff;
int y = get_unaligned_be16(&data[9 * i + 5]) & 0x7ff;
if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) {
x <<= 5;
y <<= 5;
}
input_report_abs(input, ABS_MT_PRESSURE, p);
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
if (wacom->id[i] < 0)
wacom->id[i] = wacom->trk_id++ & MAX_TRACKING_ID;
if (!count++)
sp = p, sx = x, sy = y;
} else {
wacom->id[i] = -1;
}
input_report_abs(input, ABS_MT_TRACKING_ID, wacom->id[i]);
}
input_report_key(input, BTN_TOUCH, count > 0);
input_report_key(input, BTN_TOOL_FINGER, count == 1);
input_report_key(input, BTN_TOOL_DOUBLETAP, count == 2);
input_report_abs(input, ABS_PRESSURE, sp);
input_report_abs(input, ABS_X, sx);
input_report_abs(input, ABS_Y, sy);
input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0);
input_report_key(input, BTN_FORWARD, (data[1] & 0x04) != 0);
input_report_key(input, BTN_BACK, (data[1] & 0x02) != 0);
input_report_key(input, BTN_RIGHT, (data[1] & 0x01) != 0);
input_sync(input);
return 0;
}
static int wacom_bpt_pen(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->input;
unsigned char *data = wacom->data;
int prox = 0, x = 0, y = 0, p = 0, d = 0, pen = 0, btn1 = 0, btn2 = 0;
/*
* Similar to Graphire protocol, data[1] & 0x20 is proximity and
* data[1] & 0x18 is tool ID. 0x30 is safety check to ignore
* 2 unused tool ID's.
*/
prox = (data[1] & 0x30) == 0x30;
/*
* All reports shared between PEN and RUBBER tool must be
* forced to a known starting value (zero) when transitioning to
* out-of-prox.
*
* If not reset then, to userspace, it will look like lost events
* if new tool comes in-prox with same values as previous tool sent.
*
* Hardware does report zero in most out-of-prox cases but not all.
*/
if (prox) {
if (!wacom->shared->stylus_in_proximity) {
if (data[1] & 0x08) {
wacom->tool[0] = BTN_TOOL_RUBBER;
wacom->id[0] = ERASER_DEVICE_ID;
} else {
wacom->tool[0] = BTN_TOOL_PEN;
wacom->id[0] = STYLUS_DEVICE_ID;
}
wacom->shared->stylus_in_proximity = true;
}
x = le16_to_cpup((__le16 *)&data[2]);
y = le16_to_cpup((__le16 *)&data[4]);
p = le16_to_cpup((__le16 *)&data[6]);
d = data[8];
pen = data[1] & 0x01;
btn1 = data[1] & 0x02;
btn2 = data[1] & 0x04;
}
input_report_key(input, BTN_TOUCH, pen);
input_report_key(input, BTN_STYLUS, btn1);
input_report_key(input, BTN_STYLUS2, btn2);
input_report_abs(input, ABS_X, x);
input_report_abs(input, ABS_Y, y);
input_report_abs(input, ABS_PRESSURE, p);
input_report_abs(input, ABS_DISTANCE, d);
if (!prox) {
wacom->id[0] = 0;
wacom->shared->stylus_in_proximity = false;
}
input_report_key(input, wacom->tool[0], prox); /* PEN or RUBBER */
input_report_abs(input, ABS_MISC, wacom->id[0]); /* TOOL ID */
return 1;
}
static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
{
if (len == WACOM_PKGLEN_BBTOUCH)
return wacom_bpt_touch(wacom);
else if (len == WACOM_PKGLEN_BBFUN)
return wacom_bpt_pen(wacom);
return 0;
}
void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
{
bool sync;
@ -902,6 +1030,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
sync = wacom_tpc_irq(wacom_wac, len);
break;
case BAMBOO_PT:
sync = wacom_bpt_irq(wacom_wac, len);
break;
default:
sync = false;
break;
@ -911,26 +1043,17 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
input_sync(wacom_wac->input);
}
static void wacom_setup_intuos(struct wacom_wac *wacom_wac)
static void wacom_setup_cintiq(struct wacom_wac *wacom_wac)
{
struct input_dev *input_dev = wacom_wac->input;
input_set_capability(input_dev, EV_MSC, MSC_SERIAL);
input_set_capability(input_dev, EV_REL, REL_WHEEL);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
__set_bit(BTN_MIDDLE, input_dev->keybit);
__set_bit(BTN_SIDE, input_dev->keybit);
__set_bit(BTN_EXTRA, input_dev->keybit);
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
__set_bit(BTN_TOOL_BRUSH, input_dev->keybit);
__set_bit(BTN_TOOL_PENCIL, input_dev->keybit);
__set_bit(BTN_TOOL_AIRBRUSH, input_dev->keybit);
__set_bit(BTN_TOOL_LENS, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
__set_bit(BTN_STYLUS2, input_dev->keybit);
@ -939,10 +1062,55 @@ static void wacom_setup_intuos(struct wacom_wac *wacom_wac)
input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0);
input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0);
input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0);
}
static void wacom_setup_intuos(struct wacom_wac *wacom_wac)
{
struct input_dev *input_dev = wacom_wac->input;
input_set_capability(input_dev, EV_REL, REL_WHEEL);
wacom_setup_cintiq(wacom_wac);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
__set_bit(BTN_MIDDLE, input_dev->keybit);
__set_bit(BTN_SIDE, input_dev->keybit);
__set_bit(BTN_EXTRA, input_dev->keybit);
__set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
__set_bit(BTN_TOOL_LENS, input_dev->keybit);
input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0);
input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0);
}
void wacom_setup_device_quirks(struct wacom_features *features)
{
/* touch device found but size is not defined. use default */
if (features->device_type == BTN_TOOL_DOUBLETAP && !features->x_max) {
features->x_max = 1023;
features->y_max = 1023;
}
/* these device have multiple inputs */
if (features->type == TABLETPC || features->type == TABLETPC2FG ||
features->type == BAMBOO_PT)
features->quirks |= WACOM_QUIRK_MULTI_INPUT;
/* quirks for bamboo touch */
if (features->type == BAMBOO_PT &&
features->device_type == BTN_TOOL_TRIPLETAP) {
features->x_max <<= 5;
features->y_max <<= 5;
features->x_fuzz <<= 5;
features->y_fuzz <<= 5;
features->pressure_max = 256;
features->pressure_fuzz = 16;
features->quirks |= WACOM_QUIRK_BBTOUCH_LOWRES;
}
}
void wacom_setup_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac)
{
@ -953,9 +1121,12 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
__set_bit(BTN_TOUCH, input_dev->keybit);
input_set_abs_params(input_dev, ABS_X, 0, features->x_max, 4, 0);
input_set_abs_params(input_dev, ABS_Y, 0, features->y_max, 4, 0);
input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max, 0, 0);
input_set_abs_params(input_dev, ABS_X, 0, features->x_max,
features->x_fuzz, 0);
input_set_abs_params(input_dev, ABS_Y, 0, features->y_max,
features->y_fuzz, 0);
input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max,
features->pressure_fuzz, 0);
__set_bit(ABS_MISC, input_dev->absbit);
@ -1005,9 +1176,19 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
__set_bit(BTN_9, input_dev->keybit);
/* fall through */
case CINTIQ:
for (i = 0; i < 8; i++)
__set_bit(BTN_0 + i, input_dev->keybit);
__set_bit(BTN_TOOL_FINGER, input_dev->keybit);
input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0);
input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0);
input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
wacom_setup_cintiq(wacom_wac);
break;
case INTUOS3:
case INTUOS3L:
case CINTIQ:
__set_bit(BTN_4, input_dev->keybit);
__set_bit(BTN_5, input_dev->keybit);
__set_bit(BTN_6, input_dev->keybit);
@ -1078,6 +1259,38 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
case PENPARTNER:
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
break;
case BAMBOO_PT:
__clear_bit(ABS_MISC, input_dev->absbit);
if (features->device_type == BTN_TOOL_TRIPLETAP) {
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_FORWARD, input_dev->keybit);
__set_bit(BTN_BACK, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
__set_bit(BTN_TOOL_FINGER, input_dev->keybit);
__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
input_mt_create_slots(input_dev, 2);
input_set_abs_params(input_dev, ABS_MT_POSITION_X,
0, features->x_max,
features->x_fuzz, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
0, features->y_max,
features->y_fuzz, 0);
input_set_abs_params(input_dev, ABS_MT_PRESSURE,
0, features->pressure_max,
features->pressure_fuzz, 0);
input_set_abs_params(input_dev, ABS_MT_TRACKING_ID, 0,
MAX_TRACKING_ID, 0, 0);
} else if (features->device_type == BTN_TOOL_PEN) {
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
__set_bit(BTN_STYLUS2, input_dev->keybit);
}
break;
}
}
@ -1215,6 +1428,14 @@ static const struct wacom_features wacom_features_0xE3 =
{ "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, 0, TABLETPC2FG };
static const struct wacom_features wacom_features_0x47 =
{ "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS };
static struct wacom_features wacom_features_0xD0 =
{ "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD1 =
{ "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD2 =
{ "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD3 =
{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT };
#define USB_DEVICE_WACOM(prod) \
USB_DEVICE(USB_VENDOR_ID_WACOM, prod), \
@ -1279,6 +1500,10 @@ const struct usb_device_id wacom_ids[] = {
{ USB_DEVICE_WACOM(0xC6) },
{ USB_DEVICE_WACOM(0xC7) },
{ USB_DEVICE_WACOM(0xCE) },
{ USB_DEVICE_WACOM(0xD0) },
{ USB_DEVICE_WACOM(0xD1) },
{ USB_DEVICE_WACOM(0xD2) },
{ USB_DEVICE_WACOM(0xD3) },
{ USB_DEVICE_WACOM(0xF0) },
{ USB_DEVICE_WACOM(0xCC) },
{ USB_DEVICE_WACOM(0x90) },

15
drivers/input/tablet/wacom_wac.h
View file

@ -21,6 +21,7 @@
#define WACOM_PKGLEN_INTUOS 10
#define WACOM_PKGLEN_TPC1FG 5
#define WACOM_PKGLEN_TPC2FG 14
#define WACOM_PKGLEN_BBTOUCH 20
/* device IDs */
#define STYLUS_DEVICE_ID 0x02
@ -37,6 +38,13 @@
#define WACOM_REPORT_TPC1FG 6
#define WACOM_REPORT_TPC2FG 13
/* device quirks */
#define WACOM_QUIRK_MULTI_INPUT 0x0001
#define WACOM_QUIRK_BBTOUCH_LOWRES 0x0002
/* largest reported tracking id */
#define MAX_TRACKING_ID 0xfff
enum {
PENPARTNER = 0,
GRAPHIRE,
@ -44,6 +52,7 @@ enum {
PTU,
PL,
DTU,
BAMBOO_PT,
INTUOS,
INTUOS3S,
INTUOS3,
@ -73,6 +82,11 @@ struct wacom_features {
int y_phy;
unsigned char unit;
unsigned char unitExpo;
int x_fuzz;
int y_fuzz;
int pressure_fuzz;
int distance_fuzz;
unsigned quirks;
};
struct wacom_shared {
@ -86,6 +100,7 @@ struct wacom_wac {
int id[3];
__u32 serial[2];
int last_finger;
int trk_id;
struct wacom_features features;
struct wacom_shared *shared;
struct input_dev *input;

34
drivers/input/touchscreen/Kconfig
View file

@ -98,6 +98,18 @@ config TOUCHSCREEN_BITSY
To compile this driver as a module, choose M here: the
module will be called h3600_ts_input.
config TOUCHSCREEN_BU21013
tristate "BU21013 based touch panel controllers"
depends on I2C
help
Say Y here if you have a bu21013 touchscreen connected to
your system.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called bu21013_ts.
config TOUCHSCREEN_CY8CTMG110
tristate "cy8ctmg110 touchscreen"
depends on I2C
@ -214,6 +226,16 @@ config TOUCHSCREEN_WACOM_W8001
To compile this driver as a module, choose M here: the
module will be called wacom_w8001.
config TOUCHSCREEN_LPC32XX
tristate "LPC32XX touchscreen controller"
depends on ARCH_LPC32XX
help
Say Y here if you have a LPC32XX device and want
to support the built-in touchscreen.
To compile this driver as a module, choose M here: the
module will be called lpc32xx_ts.
config TOUCHSCREEN_MCS5000
tristate "MELFAS MCS-5000 touchscreen"
depends on I2C
@ -250,6 +272,18 @@ config TOUCHSCREEN_INEXIO
To compile this driver as a module, choose M here: the
module will be called inexio.
config TOUCHSCREEN_INTEL_MID
tristate "Intel MID platform resistive touchscreen"
depends on INTEL_SCU_IPC
help
Say Y here if you have a Intel MID based touchscreen in
your system.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called intel_mid_touch.
config TOUCHSCREEN_MK712
tristate "ICS MicroClock MK712 touchscreen"
help

3
drivers/input/touchscreen/Makefile
View file

@ -14,6 +14,7 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o
obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
obj-$(CONFIG_TOUCHSCREEN_BU21013) += bu21013_ts.o
obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o
obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o
obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o
@ -23,6 +24,8 @@ obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o
obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o
obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o
obj-$(CONFIG_TOUCHSCREEN_LPC32XX) += lpc32xx_ts.o
obj-$(CONFIG_TOUCHSCREEN_MC13783) += mc13783_ts.o
obj-$(CONFIG_TOUCHSCREEN_MCS5000) += mcs5000_ts.o
obj-$(CONFIG_TOUCHSCREEN_MIGOR) += migor_ts.o

144
drivers/input/touchscreen/ad7877.c
View file

@ -191,13 +191,12 @@ struct ad7877 {
struct spi_message msg;
struct mutex mutex;
unsigned disabled:1; /* P: mutex */
unsigned gpio3:1; /* P: mutex */
unsigned gpio4:1; /* P: mutex */
bool disabled; /* P: mutex */
bool gpio3; /* P: mutex */
bool gpio4; /* P: mutex */
spinlock_t lock;
struct timer_list timer; /* P: lock */
unsigned pending:1; /* P: lock */
/*
* DMA (thus cache coherency maintenance) requires the
@ -206,8 +205,8 @@ struct ad7877 {
u16 conversion_data[AD7877_NR_SENSE] ____cacheline_aligned;
};
static int gpio3;
module_param(gpio3, int, 0);
static bool gpio3;
module_param(gpio3, bool, 0);
MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3");
/*
@ -230,6 +229,7 @@ static int ad7877_read(struct spi_device *spi, u16 reg)
AD7877_READADD(reg));
req->xfer[0].tx_buf = &req->command;
req->xfer[0].len = 2;
req->xfer[0].cs_change = 1;
req->xfer[1].rx_buf = &req->sample;
req->xfer[1].len = 2;
@ -295,20 +295,25 @@ static int ad7877_read_adc(struct spi_device *spi, unsigned command)
req->xfer[0].tx_buf = &req->reset;
req->xfer[0].len = 2;
req->xfer[0].cs_change = 1;
req->xfer[1].tx_buf = &req->ref_on;
req->xfer[1].len = 2;
req->xfer[1].delay_usecs = ts->vref_delay_usecs;
req->xfer[1].cs_change = 1;
req->xfer[2].tx_buf = &req->command;
req->xfer[2].len = 2;
req->xfer[2].delay_usecs = ts->vref_delay_usecs;
req->xfer[2].cs_change = 1;
req->xfer[3].rx_buf = &req->sample;
req->xfer[3].len = 2;
req->xfer[3].cs_change = 1;
req->xfer[4].tx_buf = &ts->cmd_crtl2; /*REF OFF*/
req->xfer[4].len = 2;
req->xfer[4].cs_change = 1;
req->xfer[5].tx_buf = &ts->cmd_crtl1; /*DEFAULT*/
req->xfer[5].len = 2;
@ -327,7 +332,7 @@ static int ad7877_read_adc(struct spi_device *spi, unsigned command)
return status ? : sample;
}
static void ad7877_rx(struct ad7877 *ts)
static int ad7877_process_data(struct ad7877 *ts)
{
struct input_dev *input_dev = ts->input;
unsigned Rt;
@ -354,11 +359,25 @@ static void ad7877_rx(struct ad7877 *ts)
Rt /= z1;
Rt = (Rt + 2047) >> 12;
/*
* Sample found inconsistent, pressure is beyond
* the maximum. Don't report it to user space.
*/
if (Rt > ts->pressure_max)
return -EINVAL;
if (!timer_pending(&ts->timer))
input_report_key(input_dev, BTN_TOUCH, 1);
input_report_abs(input_dev, ABS_X, x);
input_report_abs(input_dev, ABS_Y, y);
input_report_abs(input_dev, ABS_PRESSURE, Rt);
input_sync(input_dev);
return 0;
}
return -EINVAL;
}
static inline void ad7877_ts_event_release(struct ad7877 *ts)
@ -366,72 +385,56 @@ static inline void ad7877_ts_event_release(struct ad7877 *ts)
struct input_dev *input_dev = ts->input;
input_report_abs(input_dev, ABS_PRESSURE, 0);
input_report_key(input_dev, BTN_TOUCH, 0);
input_sync(input_dev);
}
static void ad7877_timer(unsigned long handle)
{
struct ad7877 *ts = (void *)handle;
unsigned long flags;
spin_lock_irqsave(&ts->lock, flags);
ad7877_ts_event_release(ts);
spin_unlock_irqrestore(&ts->lock, flags);
}
static irqreturn_t ad7877_irq(int irq, void *handle)
{
struct ad7877 *ts = handle;
unsigned long flags;
int status;
int error;
/*
* The repeated conversion sequencer controlled by TMR kicked off
* too fast. We ignore the last and process the sample sequence
* currently in the queue. It can't be older than 9.4ms, and we
* need to avoid that ts->msg doesn't get issued twice while in work.
*/
error = spi_sync(ts->spi, &ts->msg);
if (error) {
dev_err(&ts->spi->dev, "spi_sync --> %d\n", error);
goto out;
}
spin_lock_irqsave(&ts->lock, flags);
if (!ts->pending) {
ts->pending = 1;
status = spi_async(ts->spi, &ts->msg);
if (status)
dev_err(&ts->spi->dev, "spi_sync --> %d\n", status);
}
error = ad7877_process_data(ts);
if (!error)
mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
spin_unlock_irqrestore(&ts->lock, flags);
out:
return IRQ_HANDLED;
}
static void ad7877_callback(void *_ts)
{
struct ad7877 *ts = _ts;
spin_lock_irq(&ts->lock);
ad7877_rx(ts);
ts->pending = 0;
mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
spin_unlock_irq(&ts->lock);
}
static void ad7877_disable(struct ad7877 *ts)
{
mutex_lock(&ts->mutex);
if (!ts->disabled) {
ts->disabled = 1;
ts->disabled = true;
disable_irq(ts->spi->irq);
/* Wait for spi_async callback */
while (ts->pending)
msleep(1);
if (del_timer_sync(&ts->timer))
ad7877_ts_event_release(ts);
}
/* we know the chip's in lowpower mode since we always
/*
* We know the chip's in lowpower mode since we always
* leave it that way after every request
*/
@ -443,7 +446,7 @@ static void ad7877_enable(struct ad7877 *ts)
mutex_lock(&ts->mutex);
if (ts->disabled) {
ts->disabled = 0;
ts->disabled = false;
enable_irq(ts->spi->irq);
}
@ -453,7 +456,7 @@ static void ad7877_enable(struct ad7877 *ts)
#define SHOW(name) static ssize_t \
name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct ad7877 *ts = dev_get_drvdata(dev); \
struct ad7877 *ts = dev_get_drvdata(dev); \
ssize_t v = ad7877_read_adc(ts->spi, \
AD7877_READ_CHAN(name)); \
if (v < 0) \
@ -473,7 +476,7 @@ SHOW(temp2)
static ssize_t ad7877_disable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ad7877 *ts = dev_get_drvdata(dev);
struct ad7877 *ts = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", ts->disabled);
}
@ -503,7 +506,7 @@ static DEVICE_ATTR(disable, 0664, ad7877_disable_show, ad7877_disable_store);
static ssize_t ad7877_dac_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ad7877 *ts = dev_get_drvdata(dev);
struct ad7877 *ts = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", ts->dac);
}
@ -533,7 +536,7 @@ static DEVICE_ATTR(dac, 0664, ad7877_dac_show, ad7877_dac_store);
static ssize_t ad7877_gpio3_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ad7877 *ts = dev_get_drvdata(dev);
struct ad7877 *ts = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", ts->gpio3);
}
@ -564,7 +567,7 @@ static DEVICE_ATTR(gpio3, 0664, ad7877_gpio3_show, ad7877_gpio3_store);
static ssize_t ad7877_gpio4_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ad7877 *ts = dev_get_drvdata(dev);
struct ad7877 *ts = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", ts->gpio4);
}
@ -597,16 +600,35 @@ static struct attribute *ad7877_attributes[] = {
&dev_attr_temp2.attr,
&dev_attr_aux1.attr,
&dev_attr_aux2.attr,
&dev_attr_aux3.attr,
&dev_attr_bat1.attr,
&dev_attr_bat2.attr,
&dev_attr_disable.attr,
&dev_attr_dac.attr,
&dev_attr_gpio3.attr,
&dev_attr_gpio4.attr,
NULL
};
static mode_t ad7877_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
mode_t mode = attr->mode;
if (attr == &dev_attr_aux3.attr) {
if (gpio3)
mode = 0;
} else if (attr == &dev_attr_gpio3.attr) {
if (!gpio3)
mode = 0;
}
return mode;
}
static const struct attribute_group ad7877_attr_group = {
.attrs = ad7877_attributes,
.is_visible = ad7877_attr_is_visible,
.attrs = ad7877_attributes,
};
static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
@ -635,22 +657,25 @@ static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
spi_message_init(m);
m->complete = ad7877_callback;
m->context = ts;
ts->xfer[0].tx_buf = &ts->cmd_crtl1;
ts->xfer[0].len = 2;
ts->xfer[0].cs_change = 1;
spi_message_add_tail(&ts->xfer[0], m);
ts->xfer[1].tx_buf = &ts->cmd_dummy; /* Send ZERO */
ts->xfer[1].len = 2;
ts->xfer[1].cs_change = 1;
spi_message_add_tail(&ts->xfer[1], m);
for (i = 0; i < 11; i++) {
for (i = 0; i < AD7877_NR_SENSE; i++) {
ts->xfer[i + 2].rx_buf = &ts->conversion_data[AD7877_SEQ_YPOS + i];
ts->xfer[i + 2].len = 2;
if (i < (AD7877_NR_SENSE - 1))
ts->xfer[i + 2].cs_change = 1;
spi_message_add_tail(&ts->xfer[i + 2], m);
}
}
@ -718,6 +743,8 @@ static int __devinit ad7877_probe(struct spi_device *spi)
input_dev->phys = ts->phys;
input_dev->dev.parent = &spi->dev;
__set_bit(EV_KEY, input_dev->evbit);
__set_bit(BTN_TOUCH, input_dev->keybit);
__set_bit(EV_ABS, input_dev->evbit);
__set_bit(ABS_X, input_dev->absbit);
__set_bit(ABS_Y, input_dev->absbit);
@ -752,8 +779,9 @@ static int __devinit ad7877_probe(struct spi_device *spi)
/* Request AD7877 /DAV GPIO interrupt */
err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING,
spi->dev.driver->name, ts);
err = request_threaded_irq(spi->irq, NULL, ad7877_irq,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
spi->dev.driver->name, ts);
if (err) {
dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
goto err_free_mem;
@ -763,20 +791,12 @@ static int __devinit ad7877_probe(struct spi_device *spi)
if (err)
goto err_free_irq;
err = device_create_file(&spi->dev,
gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
err = input_register_device(input_dev);
if (err)
goto err_remove_attr_group;
err = input_register_device(input_dev);
if (err)
goto err_remove_attr;
return 0;
err_remove_attr:
device_remove_file(&spi->dev,
gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
err_remove_attr_group:
sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
err_free_irq:
@ -790,11 +810,9 @@ err_free_mem:
static int __devexit ad7877_remove(struct spi_device *spi)
{
struct ad7877 *ts = dev_get_drvdata(&spi->dev);
struct ad7877 *ts = dev_get_drvdata(&spi->dev);
sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
device_remove_file(&spi->dev,
gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
ad7877_disable(ts);
free_irq(ts->spi->irq, ts);

904
drivers/input/touchscreen/ads7846.c
View file

File diff suppressed because it is too large Load diff

648
drivers/input/touchscreen/bu21013_ts.c Normal file
View file

@ -0,0 +1,648 @@
/*
* Copyright (C) ST-Ericsson SA 2010
* Author: Naveen Kumar G <naveen.gaddipati@stericsson.com> for ST-Ericsson
* License terms:GNU General Public License (GPL) version 2
*/
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <linux/input.h>
#include <linux/input/bu21013.h>
#include <linux/slab.h>
#define PEN_DOWN_INTR 0
#define MAX_FINGERS 2
#define RESET_DELAY 30
#define PENUP_TIMEOUT (10)
#define DELTA_MIN 16
#define MASK_BITS 0x03
#define SHIFT_8 8
#define SHIFT_2 2
#define LENGTH_OF_BUFFER 11
#define I2C_RETRY_COUNT 5
#define BU21013_SENSORS_BTN_0_7_REG 0x70
#define BU21013_SENSORS_BTN_8_15_REG 0x71
#define BU21013_SENSORS_BTN_16_23_REG 0x72
#define BU21013_X1_POS_MSB_REG 0x73
#define BU21013_X1_POS_LSB_REG 0x74
#define BU21013_Y1_POS_MSB_REG 0x75
#define BU21013_Y1_POS_LSB_REG 0x76
#define BU21013_X2_POS_MSB_REG 0x77
#define BU21013_X2_POS_LSB_REG 0x78
#define BU21013_Y2_POS_MSB_REG 0x79
#define BU21013_Y2_POS_LSB_REG 0x7A
#define BU21013_INT_CLR_REG 0xE8
#define BU21013_INT_MODE_REG 0xE9
#define BU21013_GAIN_REG 0xEA
#define BU21013_OFFSET_MODE_REG 0xEB
#define BU21013_XY_EDGE_REG 0xEC
#define BU21013_RESET_REG 0xED
#define BU21013_CALIB_REG 0xEE
#define BU21013_DONE_REG 0xEF
#define BU21013_SENSOR_0_7_REG 0xF0
#define BU21013_SENSOR_8_15_REG 0xF1
#define BU21013_SENSOR_16_23_REG 0xF2
#define BU21013_POS_MODE1_REG 0xF3
#define BU21013_POS_MODE2_REG 0xF4
#define BU21013_CLK_MODE_REG 0xF5
#define BU21013_IDLE_REG 0xFA
#define BU21013_FILTER_REG 0xFB
#define BU21013_TH_ON_REG 0xFC
#define BU21013_TH_OFF_REG 0xFD
#define BU21013_RESET_ENABLE 0x01
#define BU21013_SENSORS_EN_0_7 0x3F
#define BU21013_SENSORS_EN_8_15 0xFC
#define BU21013_SENSORS_EN_16_23 0x1F
#define BU21013_POS_MODE1_0 0x02
#define BU21013_POS_MODE1_1 0x04
#define BU21013_POS_MODE1_2 0x08
#define BU21013_POS_MODE2_ZERO 0x01
#define BU21013_POS_MODE2_AVG1 0x02
#define BU21013_POS_MODE2_AVG2 0x04
#define BU21013_POS_MODE2_EN_XY 0x08
#define BU21013_POS_MODE2_EN_RAW 0x10
#define BU21013_POS_MODE2_MULTI 0x80
#define BU21013_CLK_MODE_DIV 0x01
#define BU21013_CLK_MODE_EXT 0x02
#define BU21013_CLK_MODE_CALIB 0x80
#define BU21013_IDLET_0 0x01
#define BU21013_IDLET_1 0x02
#define BU21013_IDLET_2 0x04
#define BU21013_IDLET_3 0x08
#define BU21013_IDLE_INTERMIT_EN 0x10
#define BU21013_DELTA_0_6 0x7F
#define BU21013_FILTER_EN 0x80
#define BU21013_INT_MODE_LEVEL 0x00
#define BU21013_INT_MODE_EDGE 0x01
#define BU21013_GAIN_0 0x01
#define BU21013_GAIN_1 0x02
#define BU21013_GAIN_2 0x04
#define BU21013_OFFSET_MODE_DEFAULT 0x00
#define BU21013_OFFSET_MODE_MOVE 0x01
#define BU21013_OFFSET_MODE_DISABLE 0x02
#define BU21013_TH_ON_0 0x01
#define BU21013_TH_ON_1 0x02
#define BU21013_TH_ON_2 0x04
#define BU21013_TH_ON_3 0x08
#define BU21013_TH_ON_4 0x10
#define BU21013_TH_ON_5 0x20
#define BU21013_TH_ON_6 0x40
#define BU21013_TH_ON_7 0x80
#define BU21013_TH_ON_MAX 0xFF
#define BU21013_TH_OFF_0 0x01
#define BU21013_TH_OFF_1 0x02
#define BU21013_TH_OFF_2 0x04
#define BU21013_TH_OFF_3 0x08
#define BU21013_TH_OFF_4 0x10
#define BU21013_TH_OFF_5 0x20
#define BU21013_TH_OFF_6 0x40
#define BU21013_TH_OFF_7 0x80
#define BU21013_TH_OFF_MAX 0xFF
#define BU21013_X_EDGE_0 0x01
#define BU21013_X_EDGE_1 0x02
#define BU21013_X_EDGE_2 0x04
#define BU21013_X_EDGE_3 0x08
#define BU21013_Y_EDGE_0 0x10
#define BU21013_Y_EDGE_1 0x20
#define BU21013_Y_EDGE_2 0x40
#define BU21013_Y_EDGE_3 0x80
#define BU21013_DONE 0x01
#define BU21013_NUMBER_OF_X_SENSORS (6)
#define BU21013_NUMBER_OF_Y_SENSORS (11)
#define DRIVER_TP "bu21013_tp"
/**
* struct bu21013_ts_data - touch panel data structure
* @client: pointer to the i2c client
* @wait: variable to wait_queue_head_t structure
* @touch_stopped: touch stop flag
* @chip: pointer to the touch panel controller
* @in_dev: pointer to the input device structure
* @intr_pin: interrupt pin value
*
* Touch panel device data structure
*/
struct bu21013_ts_data {
struct i2c_client *client;
wait_queue_head_t wait;
bool touch_stopped;
const struct bu21013_platform_device *chip;
struct input_dev *in_dev;
unsigned int intr_pin;
};
/**
* bu21013_read_block_data(): read the touch co-ordinates
* @data: bu21013_ts_data structure pointer
* @buf: byte pointer
*
* Read the touch co-ordinates using i2c read block into buffer
* and returns integer.
*/
static int bu21013_read_block_data(struct bu21013_ts_data *data, u8 *buf)
{
int ret, i;
for (i = 0; i < I2C_RETRY_COUNT; i++) {
ret = i2c_smbus_read_i2c_block_data
(data->client, BU21013_SENSORS_BTN_0_7_REG,
LENGTH_OF_BUFFER, buf);
if (ret == LENGTH_OF_BUFFER)
return 0;
}
return -EINVAL;
}
/**
* bu21013_do_touch_report(): Get the touch co-ordinates
* @data: bu21013_ts_data structure pointer
*
* Get the touch co-ordinates from touch sensor registers and writes
* into device structure and returns integer.
*/
static int bu21013_do_touch_report(struct bu21013_ts_data *data)
{
u8 buf[LENGTH_OF_BUFFER];
unsigned int pos_x[2], pos_y[2];
bool has_x_sensors, has_y_sensors;
int finger_down_count = 0;
int i;
if (data == NULL)
return -EINVAL;
if (bu21013_read_block_data(data, buf) < 0)
return -EINVAL;
has_x_sensors = hweight32(buf[0] & BU21013_SENSORS_EN_0_7);
has_y_sensors = hweight32(((buf[1] & BU21013_SENSORS_EN_8_15) |
((buf[2] & BU21013_SENSORS_EN_16_23) << SHIFT_8)) >> SHIFT_2);
if (!has_x_sensors || !has_y_sensors)
return 0;
for (i = 0; i < MAX_FINGERS; i++) {
const u8 *p = &buf[4 * i + 3];
unsigned int x = p[0] << SHIFT_2 | (p[1] & MASK_BITS);
unsigned int y = p[2] << SHIFT_2 | (p[3] & MASK_BITS);
if (x == 0 || y == 0)
continue;
pos_x[finger_down_count] = x;
pos_y[finger_down_count] = y;
finger_down_count++;
}
if (finger_down_count) {
if (finger_down_count == 2 &&
(abs(pos_x[0] - pos_x[1]) < DELTA_MIN ||
abs(pos_y[0] - pos_y[1]) < DELTA_MIN)) {
return 0;
}
for (i = 0; i < finger_down_count; i++) {
if (data->chip->x_flip)
pos_x[i] = data->chip->touch_x_max - pos_x[i];
if (data->chip->y_flip)
pos_y[i] = data->chip->touch_y_max - pos_y[i];
input_report_abs(data->in_dev,
ABS_MT_POSITION_X, pos_x[i]);
input_report_abs(data->in_dev,
ABS_MT_POSITION_Y, pos_y[i]);
input_mt_sync(data->in_dev);
}
} else
input_mt_sync(data->in_dev);
input_sync(data->in_dev);
return 0;
}
/**
* bu21013_gpio_irq() - gpio thread function for touch interrupt
* @irq: irq value
* @device_data: void pointer
*
* This gpio thread function for touch interrupt
* and returns irqreturn_t.
*/
static irqreturn_t bu21013_gpio_irq(int irq, void *device_data)
{
struct bu21013_ts_data *data = device_data;
struct i2c_client *i2c = data->client;
int retval;
do {
retval = bu21013_do_touch_report(data);
if (retval < 0) {
dev_err(&i2c->dev, "bu21013_do_touch_report failed\n");
return IRQ_NONE;
}
data->intr_pin = data->chip->irq_read_val();
if (data->intr_pin == PEN_DOWN_INTR)
wait_event_timeout(data->wait, data->touch_stopped,
msecs_to_jiffies(2));
} while (!data->intr_pin && !data->touch_stopped);
return IRQ_HANDLED;
}
/**
* bu21013_init_chip() - power on sequence for the bu21013 controller
* @data: device structure pointer
*
* This function is used to power on
* the bu21013 controller and returns integer.
*/
static int bu21013_init_chip(struct bu21013_ts_data *data)
{
int retval;
struct i2c_client *i2c = data->client;
retval = i2c_smbus_write_byte_data(i2c, BU21013_RESET_REG,
BU21013_RESET_ENABLE);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_RESET reg write failed\n");
return retval;
}
msleep(RESET_DELAY);
retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_0_7_REG,
BU21013_SENSORS_EN_0_7);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_SENSOR_0_7 reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_8_15_REG,
BU21013_SENSORS_EN_8_15);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_SENSOR_8_15 reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_16_23_REG,
BU21013_SENSORS_EN_16_23);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_SENSOR_16_23 reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_POS_MODE1_REG,
(BU21013_POS_MODE1_0 | BU21013_POS_MODE1_1));
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_POS_MODE1 reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_POS_MODE2_REG,
(BU21013_POS_MODE2_ZERO | BU21013_POS_MODE2_AVG1 |
BU21013_POS_MODE2_AVG2 | BU21013_POS_MODE2_EN_RAW |
BU21013_POS_MODE2_MULTI));
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_POS_MODE2 reg write failed\n");
return retval;
}
if (data->chip->ext_clk)
retval = i2c_smbus_write_byte_data(i2c, BU21013_CLK_MODE_REG,
(BU21013_CLK_MODE_EXT | BU21013_CLK_MODE_CALIB));
else
retval = i2c_smbus_write_byte_data(i2c, BU21013_CLK_MODE_REG,
(BU21013_CLK_MODE_DIV | BU21013_CLK_MODE_CALIB));
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_CLK_MODE reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_IDLE_REG,
(BU21013_IDLET_0 | BU21013_IDLE_INTERMIT_EN));
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_IDLE reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_INT_MODE_REG,
BU21013_INT_MODE_LEVEL);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_INT_MODE reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_FILTER_REG,
(BU21013_DELTA_0_6 |
BU21013_FILTER_EN));
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_FILTER reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_TH_ON_REG,
BU21013_TH_ON_5);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_TH_ON reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_TH_OFF_REG,
BU21013_TH_OFF_4 || BU21013_TH_OFF_3);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_TH_OFF reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_GAIN_REG,
(BU21013_GAIN_0 | BU21013_GAIN_1));
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_GAIN reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_OFFSET_MODE_REG,
BU21013_OFFSET_MODE_DEFAULT);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_OFFSET_MODE reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_XY_EDGE_REG,
(BU21013_X_EDGE_0 | BU21013_X_EDGE_2 |
BU21013_Y_EDGE_1 | BU21013_Y_EDGE_3));
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_XY_EDGE reg write failed\n");
return retval;
}
retval = i2c_smbus_write_byte_data(i2c, BU21013_DONE_REG,
BU21013_DONE);
if (retval < 0) {
dev_err(&i2c->dev, "BU21013_REG_DONE reg write failed\n");
return retval;
}
return 0;
}
/**
* bu21013_free_irq() - frees IRQ registered for touchscreen
* @bu21013_data: device structure pointer
*
* This function signals interrupt thread to stop processing and
* frees interrupt.
*/
static void bu21013_free_irq(struct bu21013_ts_data *bu21013_data)
{
bu21013_data->touch_stopped = true;
wake_up(&bu21013_data->wait);
free_irq(bu21013_data->chip->irq, bu21013_data);
}
/**
* bu21013_probe() - initializes the i2c-client touchscreen driver
* @client: i2c client structure pointer
* @id: i2c device id pointer
*
* This function used to initializes the i2c-client touchscreen
* driver and returns integer.
*/
static int __devinit bu21013_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct bu21013_ts_data *bu21013_data;
struct input_dev *in_dev;
const struct bu21013_platform_device *pdata =
client->dev.platform_data;
int error;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_err(&client->dev, "i2c smbus byte data not supported\n");
return -EIO;
}
if (!pdata) {
dev_err(&client->dev, "platform data not defined\n");
return -EINVAL;
}
bu21013_data = kzalloc(sizeof(struct bu21013_ts_data), GFP_KERNEL);
in_dev = input_allocate_device();
if (!bu21013_data || !in_dev) {
dev_err(&client->dev, "device memory alloc failed\n");
error = -ENOMEM;
goto err_free_mem;
}
bu21013_data->in_dev = in_dev;
bu21013_data->chip = pdata;
bu21013_data->client = client;
bu21013_data->touch_stopped = false;
init_waitqueue_head(&bu21013_data->wait);
/* configure the gpio pins */
if (pdata->cs_en) {
error = pdata->cs_en(pdata->cs_pin);
if (error < 0) {
dev_err(&client->dev, "chip init failed\n");
goto err_free_mem;
}
}
/* configure the touch panel controller */
error = bu21013_init_chip(bu21013_data);
if (error) {
dev_err(&client->dev, "error in bu21013 config\n");
goto err_cs_disable;
}
/* register the device to input subsystem */
in_dev->name = DRIVER_TP;
in_dev->id.bustype = BUS_I2C;
in_dev->dev.parent = &client->dev;
__set_bit(EV_SYN, in_dev->evbit);
__set_bit(EV_KEY, in_dev->evbit);
__set_bit(EV_ABS, in_dev->evbit);
input_set_abs_params(in_dev, ABS_MT_POSITION_X, 0,
pdata->x_max_res, 0, 0);
input_set_abs_params(in_dev, ABS_MT_POSITION_Y, 0,
pdata->y_max_res, 0, 0);
input_set_drvdata(in_dev, bu21013_data);
error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq,
IRQF_TRIGGER_FALLING | IRQF_SHARED,
DRIVER_TP, bu21013_data);
if (error) {
dev_err(&client->dev, "request irq %d failed\n", pdata->irq);
goto err_cs_disable;
}
error = input_register_device(in_dev);
if (error) {
dev_err(&client->dev, "failed to register input device\n");
goto err_free_irq;
}
device_init_wakeup(&client->dev, pdata->wakeup);
i2c_set_clientdata(client, bu21013_data);
return 0;
err_free_irq:
bu21013_free_irq(bu21013_data);
err_cs_disable:
pdata->cs_dis(pdata->cs_pin);
err_free_mem:
input_free_device(bu21013_data->in_dev);
kfree(bu21013_data);
return error;
}
/**
* bu21013_remove() - removes the i2c-client touchscreen driver
* @client: i2c client structure pointer
*
* This function uses to remove the i2c-client
* touchscreen driver and returns integer.
*/
static int __devexit bu21013_remove(struct i2c_client *client)
{
struct bu21013_ts_data *bu21013_data = i2c_get_clientdata(client);
bu21013_free_irq(bu21013_data);
bu21013_data->chip->cs_dis(bu21013_data->chip->cs_pin);
input_unregister_device(bu21013_data->in_dev);
kfree(bu21013_data);
device_init_wakeup(&client->dev, false);
return 0;
}
#ifdef CONFIG_PM
/**
* bu21013_suspend() - suspend the touch screen controller
* @dev: pointer to device structure
*
* This function is used to suspend the
* touch panel controller and returns integer
*/
static int bu21013_suspend(struct device *dev)
{
struct bu21013_ts_data *bu21013_data = dev_get_drvdata(dev);
struct i2c_client *client = bu21013_data->client;
bu21013_data->touch_stopped = true;
if (device_may_wakeup(&client->dev))
enable_irq_wake(bu21013_data->chip->irq);
else
disable_irq(bu21013_data->chip->irq);
return 0;
}
/**
* bu21013_resume() - resume the touch screen controller
* @dev: pointer to device structure
*
* This function is used to resume the touch panel
* controller and returns integer.
*/
static int bu21013_resume(struct device *dev)
{
struct bu21013_ts_data *bu21013_data = dev_get_drvdata(dev);
struct i2c_client *client = bu21013_data->client;
int retval;
retval = bu21013_init_chip(bu21013_data);
if (retval < 0) {
dev_err(&client->dev, "bu21013 controller config failed\n");
return retval;
}
bu21013_data->touch_stopped = false;
if (device_may_wakeup(&client->dev))
disable_irq_wake(bu21013_data->chip->irq);
else
enable_irq(bu21013_data->chip->irq);
return 0;
}
static const struct dev_pm_ops bu21013_dev_pm_ops = {
.suspend = bu21013_suspend,
.resume = bu21013_resume,
};
#endif
static const struct i2c_device_id bu21013_id[] = {
{ DRIVER_TP, 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, bu21013_id);
static struct i2c_driver bu21013_driver = {
.driver = {
.name = DRIVER_TP,
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &bu21013_dev_pm_ops,
#endif
},
.probe = bu21013_probe,
.remove = __devexit_p(bu21013_remove),
.id_table = bu21013_id,
};
/**
* bu21013_init() - initializes the bu21013 touchscreen driver
*
* This function used to initializes the bu21013
* touchscreen driver and returns integer.
*/
static int __init bu21013_init(void)
{
return i2c_add_driver(&bu21013_driver);
}
/**
* bu21013_exit() - de-initializes the bu21013 touchscreen driver
*
* This function uses to de-initializes the bu21013
* touchscreen driver and returns none.
*/
static void __exit bu21013_exit(void)
{
i2c_del_driver(&bu21013_driver);
}
module_init(bu21013_init);
module_exit(bu21013_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Naveen Kumar G <[email protected]>");
MODULE_DESCRIPTION("bu21013 touch screen controller driver");

4
drivers/input/touchscreen/cy8ctmg110_ts.c
View file

@ -206,9 +206,9 @@ static int __devinit cy8ctmg110_probe(struct i2c_client *client,
input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
input_set_abs_params(input_dev, ABS_X,
CY8CTMG110_X_MIN, CY8CTMG110_X_MAX, 0, 0);
CY8CTMG110_X_MIN, CY8CTMG110_X_MAX, 4, 0);
input_set_abs_params(input_dev, ABS_Y,
CY8CTMG110_Y_MIN, CY8CTMG110_Y_MAX, 0, 0);
CY8CTMG110_Y_MIN, CY8CTMG110_Y_MAX, 4, 0);
if (ts->reset_pin) {
err = gpio_request(ts->reset_pin, NULL);

6
drivers/input/touchscreen/hp680_ts_input.c
View file

@ -107,8 +107,7 @@ static int __init hp680_ts_init(void)
return 0;
fail2: free_irq(HP680_TS_IRQ, NULL);
cancel_delayed_work(&work);
flush_scheduled_work();
cancel_delayed_work_sync(&work);
fail1: input_free_device(hp680_ts_dev);
return err;
}
@ -116,8 +115,7 @@ static int __init hp680_ts_init(void)
static void __exit hp680_ts_exit(void)
{
free_irq(HP680_TS_IRQ, NULL);
cancel_delayed_work(&work);
flush_scheduled_work();
cancel_delayed_work_sync(&work);
input_unregister_device(hp680_ts_dev);
}

687
drivers/input/touchscreen/intel-mid-touch.c Normal file
View file

@ -0,0 +1,687 @@
/*
* Intel MID Resistive Touch Screen Driver
*
* Copyright (C) 2008 Intel Corp
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* 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; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* Questions/Comments/Bug fixes to Sreedhara (sreedhara.ds@intel.com)
* Ramesh Agarwal (ramesh.agarwal@intel.com)
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* TODO:
* review conversion of r/m/w sequences
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/param.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <asm/intel_scu_ipc.h>
/* PMIC Interrupt registers */
#define PMIC_REG_ID1 0x00 /* PMIC ID1 register */
/* PMIC Interrupt registers */
#define PMIC_REG_INT 0x04 /* PMIC interrupt register */
#define PMIC_REG_MINT 0x05 /* PMIC interrupt mask register */
/* ADC Interrupt registers */
#define PMIC_REG_ADCINT 0x5F /* ADC interrupt register */
#define PMIC_REG_MADCINT 0x60 /* ADC interrupt mask register */
/* ADC Control registers */
#define PMIC_REG_ADCCNTL1 0x61 /* ADC control register */
/* ADC Channel Selection registers */
#define PMICADDR0 0xA4
#define END_OF_CHANNEL 0x1F
/* ADC Result register */
#define PMIC_REG_ADCSNS0H 0x64
/* ADC channels for touch screen */
#define MRST_TS_CHAN10 0xA /* Touch screen X+ connection */
#define MRST_TS_CHAN11 0xB /* Touch screen X- connection */
#define MRST_TS_CHAN12 0xC /* Touch screen Y+ connection */
#define MRST_TS_CHAN13 0xD /* Touch screen Y- connection */
/* Touch screen channel BIAS constants */
#define MRST_XBIAS 0x20
#define MRST_YBIAS 0x40
#define MRST_ZBIAS 0x80
/* Touch screen coordinates */
#define MRST_X_MIN 10
#define MRST_X_MAX 1024
#define MRST_X_FUZZ 5
#define MRST_Y_MIN 10
#define MRST_Y_MAX 1024
#define MRST_Y_FUZZ 5
#define MRST_PRESSURE_MIN 0
#define MRST_PRESSURE_NOMINAL 50
#define MRST_PRESSURE_MAX 100
#define WAIT_ADC_COMPLETION 10 /* msec */
/* PMIC ADC round robin delays */
#define ADC_LOOP_DELAY0 0x0 /* Continuous loop */
#define ADC_LOOP_DELAY1 0x1 /* 4.5 ms approximate */
/* PMIC Vendor Identifiers */
#define PMIC_VENDOR_FS 0 /* PMIC vendor FreeScale */
#define PMIC_VENDOR_MAXIM 1 /* PMIC vendor MAXIM */
#define PMIC_VENDOR_NEC 2 /* PMIC vendor NEC */
#define MRSTOUCH_MAX_CHANNELS 32 /* Maximum ADC channels */
/* Touch screen device structure */
struct mrstouch_dev {
struct device *dev; /* device associated with touch screen */
struct input_dev *input;
char phys[32];
u16 asr; /* Address selection register */
int irq;
unsigned int vendor; /* PMIC vendor */
unsigned int rev; /* PMIC revision */
int (*read_prepare)(struct mrstouch_dev *tsdev);
int (*read)(struct mrstouch_dev *tsdev, u16 *x, u16 *y, u16 *z);
int (*read_finish)(struct mrstouch_dev *tsdev);
};
/*************************** NEC and Maxim Interface ************************/
static int mrstouch_nec_adc_read_prepare(struct mrstouch_dev *tsdev)
{
return intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0, 0x20);
}
/*
* Enables PENDET interrupt.
*/
static int mrstouch_nec_adc_read_finish(struct mrstouch_dev *tsdev)
{
int err;
err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x20, 0x20);
if (!err)
err = intel_scu_ipc_update_register(PMIC_REG_ADCCNTL1, 0, 0x05);
return err;
}
/*
* Reads PMIC ADC touch screen result
* Reads ADC storage registers for higher 7 and lower 3 bits and
* converts the two readings into a single value and turns off gain bit
*/
static int mrstouch_ts_chan_read(u16 offset, u16 chan, u16 *vp, u16 *vm)
{
int err;
u16 result;
u32 res;
result = PMIC_REG_ADCSNS0H + offset;
if (chan == MRST_TS_CHAN12)
result += 4;
err = intel_scu_ipc_ioread32(result, &res);
if (err)
return err;
/* Mash the bits up */
*vp = (res & 0xFF) << 3; /* Highest 7 bits */
*vp |= (res >> 8) & 0x07; /* Lower 3 bits */
*vp &= 0x3FF;
res >>= 16;
*vm = (res & 0xFF) << 3; /* Highest 7 bits */
*vm |= (res >> 8) & 0x07; /* Lower 3 bits */
*vm &= 0x3FF;
return 0;
}
/*
* Enables X, Y and Z bias values
* Enables YPYM for X channels and XPXM for Y channels
*/
static int mrstouch_ts_bias_set(uint offset, uint bias)
{
int count;
u16 chan, start;
u16 reg[4];
u8 data[4];
chan = PMICADDR0 + offset;
start = MRST_TS_CHAN10;
for (count = 0; count <= 3; count++) {
reg[count] = chan++;
data[count] = bias | (start + count);
}
return intel_scu_ipc_writev(reg, data, 4);
}
/* To read touch screen channel values */
static int mrstouch_nec_adc_read(struct mrstouch_dev *tsdev,
u16 *x, u16 *y, u16 *z)
{
int err;
u16 xm, ym, zm;
/* configure Y bias for X channels */
err = mrstouch_ts_bias_set(tsdev->asr, MRST_YBIAS);
if (err)
goto ipc_error;
msleep(WAIT_ADC_COMPLETION);
/* read x+ and x- channels */
err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN10, x, &xm);
if (err)
goto ipc_error;
/* configure x bias for y channels */
err = mrstouch_ts_bias_set(tsdev->asr, MRST_XBIAS);
if (err)
goto ipc_error;
msleep(WAIT_ADC_COMPLETION);
/* read y+ and y- channels */
err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN12, y, &ym);
if (err)
goto ipc_error;
/* configure z bias for x and y channels */
err = mrstouch_ts_bias_set(tsdev->asr, MRST_ZBIAS);
if (err)
goto ipc_error;
msleep(WAIT_ADC_COMPLETION);
/* read z+ and z- channels */
err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN10, z, &zm);
if (err)
goto ipc_error;
return 0;
ipc_error:
dev_err(tsdev->dev, "ipc error during adc read\n");
return err;
}
/*************************** Freescale Interface ************************/
static int mrstouch_fs_adc_read_prepare(struct mrstouch_dev *tsdev)
{
int err, count;
u16 chan;
u16 reg[5];
u8 data[5];
/* Stop the ADC */
err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x00, 0x02);
if (err)
goto ipc_error;
chan = PMICADDR0 + tsdev->asr;
/* Set X BIAS */
for (count = 0; count <= 3; count++) {
reg[count] = chan++;
data[count] = 0x2A;
}
reg[count] = chan++; /* Dummy */
data[count] = 0;
err = intel_scu_ipc_writev(reg, data, 5);
if (err)
goto ipc_error;
msleep(WAIT_ADC_COMPLETION);
/* Set Y BIAS */
for (count = 0; count <= 3; count++) {
reg[count] = chan++;
data[count] = 0x4A;
}
reg[count] = chan++; /* Dummy */
data[count] = 0;
err = intel_scu_ipc_writev(reg, data, 5);
if (err)
goto ipc_error;
msleep(WAIT_ADC_COMPLETION);
/* Set Z BIAS */
err = intel_scu_ipc_iowrite32(chan + 2, 0x8A8A8A8A);
if (err)
goto ipc_error;
msleep(WAIT_ADC_COMPLETION);
return 0;
ipc_error:
dev_err(tsdev->dev, "ipc error during %s\n", __func__);
return err;
}
static int mrstouch_fs_adc_read(struct mrstouch_dev *tsdev,
u16 *x, u16 *y, u16 *z)
{
int err;
u16 result;
u16 reg[4];
u8 data[4];
result = PMIC_REG_ADCSNS0H + tsdev->asr;
reg[0] = result + 4;
reg[1] = result + 5;
reg[2] = result + 16;
reg[3] = result + 17;
err = intel_scu_ipc_readv(reg, data, 4);
if (err)
goto ipc_error;
*x = data[0] << 3; /* Higher 7 bits */
*x |= data[1] & 0x7; /* Lower 3 bits */
*x &= 0x3FF;
*y = data[2] << 3; /* Higher 7 bits */
*y |= data[3] & 0x7; /* Lower 3 bits */
*y &= 0x3FF;
/* Read Z value */
reg[0] = result + 28;
reg[1] = result + 29;
err = intel_scu_ipc_readv(reg, data, 4);
if (err)
goto ipc_error;
*z = data[0] << 3; /* Higher 7 bits */
*z |= data[1] & 0x7; /* Lower 3 bits */
*z &= 0x3FF;
return 0;
ipc_error:
dev_err(tsdev->dev, "ipc error during %s\n", __func__);
return err;
}
static int mrstouch_fs_adc_read_finish(struct mrstouch_dev *tsdev)
{
int err, count;
u16 chan;
u16 reg[5];
u8 data[5];
/* Clear all TS channels */
chan = PMICADDR0 + tsdev->asr;
for (count = 0; count <= 4; count++) {
reg[count] = chan++;
data[count] = 0;
}
err = intel_scu_ipc_writev(reg, data, 5);
if (err)
goto ipc_error;
for (count = 0; count <= 4; count++) {
reg[count] = chan++;
data[count] = 0;
}
err = intel_scu_ipc_writev(reg, data, 5);
if (err)
goto ipc_error;
err = intel_scu_ipc_iowrite32(chan + 2, 0x00000000);
if (err)
goto ipc_error;
/* Start ADC */
err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x02, 0x02);
if (err)
goto ipc_error;
return 0;
ipc_error:
dev_err(tsdev->dev, "ipc error during %s\n", __func__);
return err;
}
static void mrstouch_report_event(struct input_dev *input,
unsigned int x, unsigned int y, unsigned int z)
{
if (z > MRST_PRESSURE_NOMINAL) {
/* Pen touched, report button touch and coordinates */
input_report_key(input, BTN_TOUCH, 1);
input_report_abs(input, ABS_X, x);
input_report_abs(input, ABS_Y, y);
} else {
input_report_key(input, BTN_TOUCH, 0);
}
input_report_abs(input, ABS_PRESSURE, z);
input_sync(input);
}
/* PENDET interrupt handler */
static irqreturn_t mrstouch_pendet_irq(int irq, void *dev_id)
{
struct mrstouch_dev *tsdev = dev_id;
u16 x, y, z;
/*
* Should we lower thread priority? Probably not, since we are
* not spinning but sleeping...
*/
if (tsdev->read_prepare(tsdev))
goto out;
do {
if (tsdev->read(tsdev, &x, &y, &z))
break;
mrstouch_report_event(tsdev->input, x, y, z);
} while (z > MRST_PRESSURE_NOMINAL);
tsdev->read_finish(tsdev);
out:
return IRQ_HANDLED;
}
/* Utility to read PMIC ID */
static int __devinit mrstouch_read_pmic_id(uint *vendor, uint *rev)
{
int err;
u8 r;
err = intel_scu_ipc_ioread8(PMIC_REG_ID1, &r);
if (err)
return err;
*vendor = r & 0x7;
*rev = (r >> 3) & 0x7;
return 0;
}
/*
* Parse ADC channels to find end of the channel configured by other ADC user
* NEC and MAXIM requires 4 channels and FreeScale needs 18 channels
*/
static int __devinit mrstouch_chan_parse(struct mrstouch_dev *tsdev)
{
int err, i, found;
u8 r8;
found = -1;
for (i = 0; i < MRSTOUCH_MAX_CHANNELS; i++) {
if (found >= 0)
break;
err = intel_scu_ipc_ioread8(PMICADDR0 + i, &r8);
if (err)
return err;
if (r8 == END_OF_CHANNEL) {
found = i;
break;
}
}
if (found < 0)
return 0;
if (tsdev->vendor == PMIC_VENDOR_FS) {
if (found && found > (MRSTOUCH_MAX_CHANNELS - 18))
return -ENOSPC;
} else {
if (found && found > (MRSTOUCH_MAX_CHANNELS - 4))
return -ENOSPC;
}
return found;
}
/*
* Writes touch screen channels to ADC address selection registers
*/
static int __devinit mrstouch_ts_chan_set(uint offset)
{
u16 chan;
int ret, count;
chan = PMICADDR0 + offset;
for (count = 0; count <= 3; count++) {
ret = intel_scu_ipc_iowrite8(chan++, MRST_TS_CHAN10 + count);
if (ret)
return ret;
}
return intel_scu_ipc_iowrite8(chan++, END_OF_CHANNEL);
}
/* Initialize ADC */
static int __devinit mrstouch_adc_init(struct mrstouch_dev *tsdev)
{
int err, start;
u8 ra, rm;
err = mrstouch_read_pmic_id(&tsdev->vendor, &tsdev->rev);
if (err) {
dev_err(tsdev->dev, "Unable to read PMIC id\n");
return err;
}
switch (tsdev->vendor) {
case PMIC_VENDOR_NEC:
case PMIC_VENDOR_MAXIM:
tsdev->read_prepare = mrstouch_nec_adc_read_prepare;
tsdev->read = mrstouch_nec_adc_read;
tsdev->read_finish = mrstouch_nec_adc_read_finish;
break;
case PMIC_VENDOR_FS:
tsdev->read_prepare = mrstouch_fs_adc_read_prepare;
tsdev->read = mrstouch_fs_adc_read;
tsdev->read_finish = mrstouch_fs_adc_read_finish;
break;
default:
dev_err(tsdev->dev,
"Unsupported touchscreen: %d\n", tsdev->vendor);
return -ENXIO;
}
start = mrstouch_chan_parse(tsdev);
if (start < 0) {
dev_err(tsdev->dev, "Unable to parse channels\n");
return start;
}
tsdev->asr = start;
/*
* ADC power on, start, enable PENDET and set loop delay
* ADC loop delay is set to 4.5 ms approximately
* Loop delay more than this results in jitter in adc readings
* Setting loop delay to 0 (continous loop) in MAXIM stops PENDET
* interrupt generation sometimes.
*/
if (tsdev->vendor == PMIC_VENDOR_FS) {
ra = 0xE0 | ADC_LOOP_DELAY0;
rm = 0x5;
} else {
/* NEC and MAXIm not consistent with loop delay 0 */
ra = 0xE0 | ADC_LOOP_DELAY1;
rm = 0x0;
/* configure touch screen channels */
err = mrstouch_ts_chan_set(tsdev->asr);
if (err)
return err;
}
err = intel_scu_ipc_update_register(PMIC_REG_ADCCNTL1, ra, 0xE7);
if (err)
return err;
err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, rm, 0x03);
if (err)
return err;
return 0;
}
/* Probe function for touch screen driver */
static int __devinit mrstouch_probe(struct platform_device *pdev)
{
struct mrstouch_dev *tsdev;
struct input_dev *input;
int err;
int irq;
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "no interrupt assigned\n");
return -EINVAL;
}
tsdev = kzalloc(sizeof(struct mrstouch_dev), GFP_KERNEL);
input = input_allocate_device();
if (!tsdev || !input) {
dev_err(&pdev->dev, "unable to allocate memory\n");
err = -ENOMEM;
goto err_free_mem;
}
tsdev->dev = &pdev->dev;
tsdev->input = input;
tsdev->irq = irq;
snprintf(tsdev->phys, sizeof(tsdev->phys),
"%s/input0", dev_name(tsdev->dev));
err = mrstouch_adc_init(tsdev);
if (err) {
dev_err(&pdev->dev, "ADC initialization failed\n");
goto err_free_mem;
}
input->name = "mrst_touchscreen";
input->phys = tsdev->phys;
input->dev.parent = tsdev->dev;
input->id.vendor = tsdev->vendor;
input->id.version = tsdev->rev;
input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
input_set_abs_params(tsdev->input, ABS_X,
MRST_X_MIN, MRST_X_MAX, MRST_X_FUZZ, 0);
input_set_abs_params(tsdev->input, ABS_Y,
MRST_Y_MIN, MRST_Y_MAX, MRST_Y_FUZZ, 0);
input_set_abs_params(tsdev->input, ABS_PRESSURE,
MRST_PRESSURE_MIN, MRST_PRESSURE_MAX, 0, 0);
err = request_threaded_irq(tsdev->irq, NULL, mrstouch_pendet_irq,
0, "mrstouch", tsdev);
if (err) {
dev_err(tsdev->dev, "unable to allocate irq\n");
goto err_free_mem;
}
err = input_register_device(tsdev->input);
if (err) {
dev_err(tsdev->dev, "unable to register input device\n");
goto err_free_irq;
}
platform_set_drvdata(pdev, tsdev);
return 0;
err_free_irq:
free_irq(tsdev->irq, tsdev);
err_free_mem:
input_free_device(input);
kfree(tsdev);
return err;
}
static int __devexit mrstouch_remove(struct platform_device *pdev)
{
struct mrstouch_dev *tsdev = platform_get_drvdata(pdev);
free_irq(tsdev->irq, tsdev);
input_unregister_device(tsdev->input);
kfree(tsdev);
platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver mrstouch_driver = {
.driver = {
.name = "pmic_touch",
.owner = THIS_MODULE,
},
.probe = mrstouch_probe,
.remove = __devexit_p(mrstouch_remove),
};
static int __init mrstouch_init(void)
{
return platform_driver_register(&mrstouch_driver);
}
module_init(mrstouch_init);
static void __exit mrstouch_exit(void)
{
platform_driver_unregister(&mrstouch_driver);
}
module_exit(mrstouch_exit);
MODULE_AUTHOR("Sreedhara Murthy. D.S, [email protected]");
MODULE_DESCRIPTION("Intel Moorestown Resistive Touch Screen Driver");
MODULE_LICENSE("GPL");

411
drivers/input/touchscreen/lpc32xx_ts.c Normal file
View file

@ -0,0 +1,411 @@
/*
* LPC32xx built-in touchscreen driver
*
* Copyright (C) 2010 NXP Semiconductors
*
* 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 option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/slab.h>
/*
* Touchscreen controller register offsets
*/
#define LPC32XX_TSC_STAT 0x00
#define LPC32XX_TSC_SEL 0x04
#define LPC32XX_TSC_CON 0x08
#define LPC32XX_TSC_FIFO 0x0C
#define LPC32XX_TSC_DTR 0x10
#define LPC32XX_TSC_RTR 0x14
#define LPC32XX_TSC_UTR 0x18
#define LPC32XX_TSC_TTR 0x1C
#define LPC32XX_TSC_DXP 0x20
#define LPC32XX_TSC_MIN_X 0x24
#define LPC32XX_TSC_MAX_X 0x28
#define LPC32XX_TSC_MIN_Y 0x2C
#define LPC32XX_TSC_MAX_Y 0x30
#define LPC32XX_TSC_AUX_UTR 0x34
#define LPC32XX_TSC_AUX_MIN 0x38
#define LPC32XX_TSC_AUX_MAX 0x3C
#define LPC32XX_TSC_STAT_FIFO_OVRRN (1 << 8)
#define LPC32XX_TSC_STAT_FIFO_EMPTY (1 << 7)
#define LPC32XX_TSC_SEL_DEFVAL 0x0284
#define LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4 (0x1 << 11)
#define LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(s) ((10 - (s)) << 7)
#define LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(s) ((10 - (s)) << 4)
#define LPC32XX_TSC_ADCCON_POWER_UP (1 << 2)
#define LPC32XX_TSC_ADCCON_AUTO_EN (1 << 0)
#define LPC32XX_TSC_FIFO_TS_P_LEVEL (1 << 31)
#define LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(x) (((x) & 0x03FF0000) >> 16)
#define LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(y) ((y) & 0x000003FF)
#define LPC32XX_TSC_ADCDAT_VALUE_MASK 0x000003FF
#define LPC32XX_TSC_MIN_XY_VAL 0x0
#define LPC32XX_TSC_MAX_XY_VAL 0x3FF
#define MOD_NAME "ts-lpc32xx"
#define tsc_readl(dev, reg) \
__raw_readl((dev)->tsc_base + (reg))
#define tsc_writel(dev, reg, val) \
__raw_writel((val), (dev)->tsc_base + (reg))
struct lpc32xx_tsc {
struct input_dev *dev;
void __iomem *tsc_base;
int irq;
struct clk *clk;
};
static void lpc32xx_fifo_clear(struct lpc32xx_tsc *tsc)
{
while (!(tsc_readl(tsc, LPC32XX_TSC_STAT) &
LPC32XX_TSC_STAT_FIFO_EMPTY))
tsc_readl(tsc, LPC32XX_TSC_FIFO);
}
static irqreturn_t lpc32xx_ts_interrupt(int irq, void *dev_id)
{
u32 tmp, rv[4], xs[4], ys[4];
int idx;
struct lpc32xx_tsc *tsc = dev_id;
struct input_dev *input = tsc->dev;
tmp = tsc_readl(tsc, LPC32XX_TSC_STAT);
if (tmp & LPC32XX_TSC_STAT_FIFO_OVRRN) {
/* FIFO overflow - throw away samples */
lpc32xx_fifo_clear(tsc);
return IRQ_HANDLED;
}
/*
* Gather and normalize 4 samples. Pen-up events may have less
* than 4 samples, but its ok to pop 4 and let the last sample
* pen status check drop the samples.
*/
idx = 0;
while (idx < 4 &&
!(tsc_readl(tsc, LPC32XX_TSC_STAT) &
LPC32XX_TSC_STAT_FIFO_EMPTY)) {
tmp = tsc_readl(tsc, LPC32XX_TSC_FIFO);
xs[idx] = LPC32XX_TSC_ADCDAT_VALUE_MASK -
LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(tmp);
ys[idx] = LPC32XX_TSC_ADCDAT_VALUE_MASK -
LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(tmp);
rv[idx] = tmp;
idx++;
}
/* Data is only valid if pen is still down in last sample */
if (!(rv[3] & LPC32XX_TSC_FIFO_TS_P_LEVEL) && idx == 4) {
/* Use average of 2nd and 3rd sample for position */
input_report_abs(input, ABS_X, (xs[1] + xs[2]) / 2);
input_report_abs(input, ABS_Y, (ys[1] + ys[2]) / 2);
input_report_key(input, BTN_TOUCH, 1);
} else {
input_report_key(input, BTN_TOUCH, 0);
}
input_sync(input);
return IRQ_HANDLED;
}
static void lpc32xx_stop_tsc(struct lpc32xx_tsc *tsc)
{
/* Disable auto mode */
tsc_writel(tsc, LPC32XX_TSC_CON,
tsc_readl(tsc, LPC32XX_TSC_CON) &
~LPC32XX_TSC_ADCCON_AUTO_EN);
clk_disable(tsc->clk);
}
static void lpc32xx_setup_tsc(struct lpc32xx_tsc *tsc)
{
u32 tmp;
clk_enable(tsc->clk);
tmp = tsc_readl(tsc, LPC32XX_TSC_CON) & ~LPC32XX_TSC_ADCCON_POWER_UP;
/* Set the TSC FIFO depth to 4 samples @ 10-bits per sample (max) */
tmp = LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4 |
LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(10) |
LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(10);
tsc_writel(tsc, LPC32XX_TSC_CON, tmp);
/* These values are all preset */
tsc_writel(tsc, LPC32XX_TSC_SEL, LPC32XX_TSC_SEL_DEFVAL);
tsc_writel(tsc, LPC32XX_TSC_MIN_X, LPC32XX_TSC_MIN_XY_VAL);
tsc_writel(tsc, LPC32XX_TSC_MAX_X, LPC32XX_TSC_MAX_XY_VAL);
tsc_writel(tsc, LPC32XX_TSC_MIN_Y, LPC32XX_TSC_MIN_XY_VAL);
tsc_writel(tsc, LPC32XX_TSC_MAX_Y, LPC32XX_TSC_MAX_XY_VAL);
/* Aux support is not used */
tsc_writel(tsc, LPC32XX_TSC_AUX_UTR, 0);
tsc_writel(tsc, LPC32XX_TSC_AUX_MIN, 0);
tsc_writel(tsc, LPC32XX_TSC_AUX_MAX, 0);
/*
* Set sample rate to about 240Hz per X/Y pair. A single measurement
* consists of 4 pairs which gives about a 60Hz sample rate based on
* a stable 32768Hz clock source. Values are in clocks.
* Rate is (32768 / (RTR + XCONV + RTR + YCONV + DXP + TTR + UTR) / 4
*/
tsc_writel(tsc, LPC32XX_TSC_RTR, 0x2);
tsc_writel(tsc, LPC32XX_TSC_DTR, 0x2);
tsc_writel(tsc, LPC32XX_TSC_TTR, 0x10);
tsc_writel(tsc, LPC32XX_TSC_DXP, 0x4);
tsc_writel(tsc, LPC32XX_TSC_UTR, 88);
lpc32xx_fifo_clear(tsc);
/* Enable automatic ts event capture */
tsc_writel(tsc, LPC32XX_TSC_CON, tmp | LPC32XX_TSC_ADCCON_AUTO_EN);
}
static int lpc32xx_ts_open(struct input_dev *dev)
{
struct lpc32xx_tsc *tsc = input_get_drvdata(dev);
lpc32xx_setup_tsc(tsc);
return 0;
}
static void lpc32xx_ts_close(struct input_dev *dev)
{
struct lpc32xx_tsc *tsc = input_get_drvdata(dev);
lpc32xx_stop_tsc(tsc);
}
static int __devinit lpc32xx_ts_probe(struct platform_device *pdev)
{
struct lpc32xx_tsc *tsc;
struct input_dev *input;
struct resource *res;
resource_size_t size;
int irq;
int error;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "Can't get memory resource\n");
return -ENOENT;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "Can't get interrupt resource\n");
return irq;
}
tsc = kzalloc(sizeof(*tsc), GFP_KERNEL);
input = input_allocate_device();
if (!tsc || !input) {
dev_err(&pdev->dev, "failed allocating memory\n");
error = -ENOMEM;
goto err_free_mem;
}
tsc->dev = input;
tsc->irq = irq;
size = resource_size(res);
if (!request_mem_region(res->start, size, pdev->name)) {
dev_err(&pdev->dev, "TSC registers are not free\n");
error = -EBUSY;
goto err_free_mem;
}
tsc->tsc_base = ioremap(res->start, size);
if (!tsc->tsc_base) {
dev_err(&pdev->dev, "Can't map memory\n");
error = -ENOMEM;
goto err_release_mem;
}
tsc->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(tsc->clk)) {
dev_err(&pdev->dev, "failed getting clock\n");
error = PTR_ERR(tsc->clk);
goto err_unmap;
}
input->name = MOD_NAME;
input->phys = "lpc32xx/input0";
input->id.bustype = BUS_HOST;
input->id.vendor = 0x0001;
input->id.product = 0x0002;
input->id.version = 0x0100;
input->dev.parent = &pdev->dev;
input->open = lpc32xx_ts_open;
input->close = lpc32xx_ts_close;
input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
input_set_abs_params(input, ABS_X, LPC32XX_TSC_MIN_XY_VAL,
LPC32XX_TSC_MAX_XY_VAL, 0, 0);
input_set_abs_params(input, ABS_Y, LPC32XX_TSC_MIN_XY_VAL,
LPC32XX_TSC_MAX_XY_VAL, 0, 0);
input_set_drvdata(input, tsc);
error = request_irq(tsc->irq, lpc32xx_ts_interrupt,
IRQF_DISABLED, pdev->name, tsc);
if (error) {
dev_err(&pdev->dev, "failed requesting interrupt\n");
goto err_put_clock;
}
error = input_register_device(input);
if (error) {
dev_err(&pdev->dev, "failed registering input device\n");
goto err_free_irq;
}
platform_set_drvdata(pdev, tsc);
device_init_wakeup(&pdev->dev, 1);
return 0;
err_free_irq:
free_irq(tsc->irq, tsc);
err_put_clock:
clk_put(tsc->clk);
err_unmap:
iounmap(tsc->tsc_base);
err_release_mem:
release_mem_region(res->start, size);
err_free_mem:
input_free_device(input);
kfree(tsc);
return error;
}
static int __devexit lpc32xx_ts_remove(struct platform_device *pdev)
{
struct lpc32xx_tsc *tsc = platform_get_drvdata(pdev);
struct resource *res;
device_init_wakeup(&pdev->dev, 0);
free_irq(tsc->irq, tsc);
input_unregister_device(tsc->dev);
clk_put(tsc->clk);
iounmap(tsc->tsc_base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
kfree(tsc);
return 0;
}
#ifdef CONFIG_PM
static int lpc32xx_ts_suspend(struct device *dev)
{
struct lpc32xx_tsc *tsc = dev_get_drvdata(dev);
struct input_dev *input = tsc->dev;
/*
* Suspend and resume can be called when the device hasn't been
* enabled. If there are no users that have the device open, then
* avoid calling the TSC stop and start functions as the TSC
* isn't yet clocked.
*/
mutex_lock(&input->mutex);
if (input->users) {
if (device_may_wakeup(dev))
enable_irq_wake(tsc->irq);
else
lpc32xx_stop_tsc(tsc);
}
mutex_unlock(&input->mutex);
return 0;
}
static int lpc32xx_ts_resume(struct device *dev)
{
struct lpc32xx_tsc *tsc = dev_get_drvdata(dev);
struct input_dev *input = tsc->dev;
mutex_lock(&input->mutex);
if (input->users) {
if (device_may_wakeup(dev))
disable_irq_wake(tsc->irq);
else
lpc32xx_setup_tsc(tsc);
}
mutex_unlock(&input->mutex);
return 0;
}
static const struct dev_pm_ops lpc32xx_ts_pm_ops = {
.suspend = lpc32xx_ts_suspend,
.resume = lpc32xx_ts_resume,
};
#define LPC32XX_TS_PM_OPS (&lpc32xx_ts_pm_ops)
#else
#define LPC32XX_TS_PM_OPS NULL
#endif
static struct platform_driver lpc32xx_ts_driver = {
.probe = lpc32xx_ts_probe,
.remove = __devexit_p(lpc32xx_ts_remove),
.driver = {
.name = MOD_NAME,
.owner = THIS_MODULE,
.pm = LPC32XX_TS_PM_OPS,
},
};
static int __init lpc32xx_ts_init(void)
{
return platform_driver_register(&lpc32xx_ts_driver);
}
module_init(lpc32xx_ts_init);
static void __exit lpc32xx_ts_exit(void)
{
platform_driver_unregister(&lpc32xx_ts_driver);
}
module_exit(lpc32xx_ts_exit);
MODULE_AUTHOR("Kevin Wells <[email protected]");
MODULE_DESCRIPTION("LPC32XX TSC Driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:lpc32xx_ts");

2
drivers/input/touchscreen/s3c2410_ts.c
View file

@ -350,7 +350,7 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev)
err_tcirq:
free_irq(ts.irq_tc, ts.input);
err_inputdev:
input_unregister_device(ts.input);
input_free_device(ts.input);
err_iomap:
iounmap(ts.io);
err_clk:

11
drivers/input/touchscreen/stmpe-ts.c
View file

@ -268,7 +268,7 @@ static int __devinit stmpe_input_probe(struct platform_device *pdev)
struct stmpe_touch *ts;
struct input_dev *idev;
struct stmpe_ts_platform_data *ts_pdata = NULL;
int ret = 0;
int ret;
int ts_irq;
ts_irq = platform_get_irq_byname(pdev, "FIFO_TH");
@ -276,12 +276,16 @@ static int __devinit stmpe_input_probe(struct platform_device *pdev)
return ts_irq;
ts = kzalloc(sizeof(*ts), GFP_KERNEL);
if (!ts)
if (!ts) {
ret = -ENOMEM;
goto err_out;
}
idev = input_allocate_device();
if (!idev)
if (!idev) {
ret = -ENOMEM;
goto err_free_ts;
}
platform_set_drvdata(pdev, ts);
ts->stmpe = stmpe;
@ -361,7 +365,6 @@ static int __devexit stmpe_ts_remove(struct platform_device *pdev)
platform_set_drvdata(pdev, NULL);
input_unregister_device(ts->idev);
input_free_device(ts->idev);
kfree(ts);

3
drivers/input/touchscreen/tps6507x-ts.c
View file

@ -335,6 +335,7 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
dev_err(tsc->dev, "schedule failed");
goto err2;
}
platform_set_drvdata(pdev, tps6507x_dev);
return 0;
@ -358,7 +359,7 @@ static int __devexit tps6507x_ts_remove(struct platform_device *pdev)
cancel_delayed_work_sync(&tsc->work);
destroy_workqueue(tsc->wq);
input_free_device(input_dev);
input_unregister_device(input_dev);
tps6507x_dev->ts = NULL;
kfree(tsc);

2
drivers/input/touchscreen/tsc2007.c
View file

@ -265,7 +265,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct tsc2007 *ts;
struct tsc2007_platform_data *pdata = pdata = client->dev.platform_data;
struct tsc2007_platform_data *pdata = client->dev.platform_data;
struct input_dev *input_dev;
int err;

185
drivers/input/touchscreen/wacom_w8001.c
View file

@ -2,6 +2,7 @@
* Wacom W8001 penabled serial touchscreen driver
*
* Copyright (c) 2008 Jaya Kumar
* Copyright (c) 2010 Red Hat, Inc.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
@ -30,11 +31,24 @@ MODULE_LICENSE("GPL");
#define W8001_LEAD_BYTE 0x80
#define W8001_TAB_MASK 0x40
#define W8001_TAB_BYTE 0x40
/* set in first byte of touch data packets */
#define W8001_TOUCH_MASK (0x10 | W8001_LEAD_MASK)
#define W8001_TOUCH_BYTE (0x10 | W8001_LEAD_BYTE)
#define W8001_QUERY_PACKET 0x20
#define W8001_CMD_START '1'
#define W8001_CMD_QUERY '*'
#define W8001_CMD_TOUCHQUERY '%'
/* length of data packets in bytes, depends on device. */
#define W8001_PKTLEN_TOUCH93 5
#define W8001_PKTLEN_TOUCH9A 7
#define W8001_PKTLEN_TPCPEN 9
#define W8001_PKTLEN_TPCCTL 11 /* control packet */
#define W8001_PKTLEN_TOUCH2FG 13
#define MAX_TRACKING_ID 0xFF /* arbitrarily chosen */
struct w8001_coord {
u8 rdy;
@ -48,6 +62,15 @@ struct w8001_coord {
u8 tilt_y;
};
/* touch query reply packet */
struct w8001_touch_query {
u8 panel_res;
u8 capacity_res;
u8 sensor_id;
u16 x;
u16 y;
};
/*
* Per-touchscreen data.
*/
@ -62,6 +85,9 @@ struct w8001 {
unsigned char response[W8001_MAX_LENGTH];
unsigned char data[W8001_MAX_LENGTH];
char phys[32];
int type;
unsigned int pktlen;
int trkid[2];
};
static void parse_data(u8 *data, struct w8001_coord *coord)
@ -88,11 +114,98 @@ static void parse_data(u8 *data, struct w8001_coord *coord)
coord->tilt_y = data[8] & 0x7F;
}
static void parse_touch(struct w8001 *w8001)
{
static int trkid;
struct input_dev *dev = w8001->dev;
unsigned char *data = w8001->data;
int i;
for (i = 0; i < 2; i++) {
input_mt_slot(dev, i);
if (data[0] & (1 << i)) {
int x = (data[6 * i + 1] << 7) | (data[6 * i + 2]);
int y = (data[6 * i + 3] << 7) | (data[6 * i + 4]);
/* data[5,6] and [11,12] is finger capacity */
input_report_abs(dev, ABS_MT_POSITION_X, x);
input_report_abs(dev, ABS_MT_POSITION_Y, y);
input_report_abs(dev, ABS_MT_TOOL_TYPE, MT_TOOL_FINGER);
if (w8001->trkid[i] < 0)
w8001->trkid[i] = trkid++ & MAX_TRACKING_ID;
} else {
w8001->trkid[i] = -1;
}
input_report_abs(dev, ABS_MT_TRACKING_ID, w8001->trkid[i]);
}
input_sync(dev);
}
static void parse_touchquery(u8 *data, struct w8001_touch_query *query)
{
memset(query, 0, sizeof(*query));
query->panel_res = data[1];
query->sensor_id = data[2] & 0x7;
query->capacity_res = data[7];
query->x = data[3] << 9;
query->x |= data[4] << 2;
query->x |= (data[2] >> 5) & 0x3;
query->y = data[5] << 9;
query->y |= data[6] << 2;
query->y |= (data[2] >> 3) & 0x3;
}
static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
{
struct input_dev *dev = w8001->dev;
/*
* We have 1 bit for proximity (rdy) and 3 bits for tip, side,
* side2/eraser. If rdy && f2 are set, this can be either pen + side2,
* or eraser. assume
* - if dev is already in proximity and f2 is toggled → pen + side2
* - if dev comes into proximity with f2 set → eraser
* If f2 disappears after assuming eraser, fake proximity out for
* eraser and in for pen.
*/
if (!w8001->type) {
w8001->type = coord->f2 ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
} else if (w8001->type == BTN_TOOL_RUBBER) {
if (!coord->f2) {
input_report_abs(dev, ABS_PRESSURE, 0);
input_report_key(dev, BTN_TOUCH, 0);
input_report_key(dev, BTN_STYLUS, 0);
input_report_key(dev, BTN_STYLUS2, 0);
input_report_key(dev, BTN_TOOL_RUBBER, 0);
input_sync(dev);
w8001->type = BTN_TOOL_PEN;
}
} else {
input_report_key(dev, BTN_STYLUS2, coord->f2);
}
input_report_abs(dev, ABS_X, coord->x);
input_report_abs(dev, ABS_Y, coord->y);
input_report_abs(dev, ABS_PRESSURE, coord->pen_pressure);
input_report_key(dev, BTN_TOUCH, coord->tsw);
input_report_key(dev, BTN_STYLUS, coord->f1);
input_report_key(dev, w8001->type, coord->rdy);
input_sync(dev);
if (!coord->rdy)
w8001->type = 0;
}
static irqreturn_t w8001_interrupt(struct serio *serio,
unsigned char data, unsigned int flags)
{
struct w8001 *w8001 = serio_get_drvdata(serio);
struct input_dev *dev = w8001->dev;
struct w8001_coord coord;
unsigned char tmp;
@ -105,26 +218,45 @@ static irqreturn_t w8001_interrupt(struct serio *serio,
}
break;
case 8:
case W8001_PKTLEN_TOUCH93 - 1:
case W8001_PKTLEN_TOUCH9A - 1:
/* ignore one-finger touch packet. */
if (w8001->pktlen == w8001->idx)
w8001->idx = 0;
break;
/* Pen coordinates packet */
case W8001_PKTLEN_TPCPEN - 1:
tmp = w8001->data[0] & W8001_TAB_MASK;
if (unlikely(tmp == W8001_TAB_BYTE))
break;
tmp = (w8001->data[0] & W8001_TOUCH_BYTE);
if (tmp == W8001_TOUCH_BYTE)
break;
w8001->idx = 0;
parse_data(w8001->data, &coord);
input_report_abs(dev, ABS_X, coord.x);
input_report_abs(dev, ABS_Y, coord.y);
input_report_abs(dev, ABS_PRESSURE, coord.pen_pressure);
input_report_key(dev, BTN_TOUCH, coord.tsw);
input_sync(dev);
report_pen_events(w8001, &coord);
break;
case 10:
/* control packet */
case W8001_PKTLEN_TPCCTL - 1:
tmp = (w8001->data[0] & W8001_TOUCH_MASK);
if (tmp == W8001_TOUCH_BYTE)
break;
w8001->idx = 0;
memcpy(w8001->response, w8001->data, W8001_MAX_LENGTH);
w8001->response_type = W8001_QUERY_PACKET;
complete(&w8001->cmd_done);
break;
/* 2 finger touch packet */
case W8001_PKTLEN_TOUCH2FG - 1:
w8001->idx = 0;
parse_touch(w8001);
break;
}
return IRQ_HANDLED;
@ -167,6 +299,38 @@ static int w8001_setup(struct w8001 *w8001)
input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0);
input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0);
error = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true);
if (!error) {
struct w8001_touch_query touch;
parse_touchquery(w8001->response, &touch);
switch (touch.sensor_id) {
case 0:
case 2:
w8001->pktlen = W8001_PKTLEN_TOUCH93;
break;
case 1:
case 3:
case 4:
w8001->pktlen = W8001_PKTLEN_TOUCH9A;
break;
case 5:
w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
input_mt_create_slots(dev, 2);
input_set_abs_params(dev, ABS_MT_TRACKING_ID,
0, MAX_TRACKING_ID, 0, 0);
input_set_abs_params(dev, ABS_MT_POSITION_X,
0, touch.x, 0, 0);
input_set_abs_params(dev, ABS_MT_POSITION_Y,
0, touch.y, 0, 0);
input_set_abs_params(dev, ABS_MT_TOOL_TYPE,
0, 0, 0, 0);
break;
}
}
return w8001_command(w8001, W8001_CMD_START, false);
}
@ -208,6 +372,7 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv)
w8001->serio = serio;
w8001->id = serio->id.id;
w8001->dev = input_dev;
w8001->trkid[0] = w8001->trkid[1] = -1;
init_completion(&w8001->cmd_done);
snprintf(w8001->phys, sizeof(w8001->phys), "%s/input0", serio->phys);
@ -221,6 +386,10 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv)
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
input_dev->keybit[BIT_WORD(BTN_TOOL_PEN)] |= BIT_MASK(BTN_TOOL_PEN);
input_dev->keybit[BIT_WORD(BTN_TOOL_RUBBER)] |= BIT_MASK(BTN_TOOL_RUBBER);
input_dev->keybit[BIT_WORD(BTN_STYLUS)] |= BIT_MASK(BTN_STYLUS);
input_dev->keybit[BIT_WORD(BTN_STYLUS2)] |= BIT_MASK(BTN_STYLUS2);
serio_set_drvdata(serio, w8001);
err = serio_open(serio, drv);

18
drivers/input/touchscreen/wm97xx-core.c
View file

@ -125,6 +125,8 @@ int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel)
{
int power_adc = 0, auxval;
u16 power = 0;
int rc = 0;
int timeout = 0;
/* get codec */
mutex_lock(&wm->codec_mutex);
@ -143,7 +145,9 @@ int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel)
/* Turn polling mode on to read AUX ADC */
wm->pen_probably_down = 1;
wm->codec->poll_sample(wm, adcsel, &auxval);
while (rc != RC_VALID && timeout++ < 5)
rc = wm->codec->poll_sample(wm, adcsel, &auxval);
if (power_adc)
wm97xx_reg_write(wm, AC97_EXTENDED_MID, power | 0x8000);
@ -152,8 +156,15 @@ int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel)
wm->pen_probably_down = 0;
if (timeout >= 5) {
dev_err(wm->dev,
"timeout reading auxadc %d, disabling digitiser\n",
adcsel);
wm->codec->dig_enable(wm, false);
}
mutex_unlock(&wm->codec_mutex);
return auxval & 0xfff;
return (rc == RC_VALID ? auxval & 0xfff : -EBUSY);
}
EXPORT_SYMBOL_GPL(wm97xx_read_aux_adc);
@ -684,8 +695,7 @@ static int wm97xx_probe(struct device *dev)
touch_reg_err:
platform_device_put(wm->touch_dev);
touch_err:
platform_device_unregister(wm->battery_dev);
wm->battery_dev = NULL;
platform_device_del(wm->battery_dev);
batt_reg_err:
platform_device_put(wm->battery_dev);
batt_err: