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Merge "usb: gsi: Add debugfs support for remote wakeup on each interface"

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qctecmdr 2021-04-13 18:13:21 -07:00 • committed by Gerrit - the friendly Code Review server
commit 46bc219c59
1 changed files with 55 additions and 46 deletions
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101
drivers/usb/gadget/function/f_gsi.c
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@ -204,41 +204,30 @@ static void gsi_rw_timer_func(struct timer_list *t)
static struct f_gsi *get_connected_gsi(void)
{
struct f_gsi *connected_gsi;
bool gsi_connected = false;
int i;
for (i = 0; i < IPA_USB_MAX_TETH_PROT_SIZE; i++) {
if (inst_status[i].opts)
connected_gsi = inst_status[i].opts->gsi;
else
continue;
if (connected_gsi && atomic_read(&connected_gsi->connected)) {
gsi_connected = true;
break;
}
if (connected_gsi && atomic_read(&connected_gsi->connected))
return connected_gsi;
}
if (!gsi_connected)
connected_gsi = NULL;
return connected_gsi;
return NULL;
}
#define DEFAULT_RW_TIMER_INTERVAL 500 /* in ms */
static ssize_t usb_gsi_rw_write(struct file *file,
const char __user *ubuf, size_t count, loff_t *ppos)
{
struct f_gsi *gsi;
struct f_gsi *gsi = NULL;
struct usb_function *func;
struct usb_gadget *gadget;
u8 input;
int i;
int ret;
gsi = get_connected_gsi();
if (!gsi) {
log_event_dbg("%s: gsi not connected\n", __func__);
goto err;
}
if (ubuf == NULL) {
log_event_dbg("%s: buffer is Null.\n", __func__);
goto err;
@ -250,23 +239,35 @@ static ssize_t usb_gsi_rw_write(struct file *file,
goto err;
}
if (gsi->debugfs_rw_timer_enable == !!input) {
if (!!input)
log_event_dbg("%s: RW already enabled\n", __func__);
else
log_event_dbg("%s: RW already disabled\n", __func__);
goto err;
}
for (i = 0; i < IPA_USB_MAX_TETH_PROT_SIZE; i++) {
gsi = NULL;
if (inst_status[i].opts)
gsi = inst_status[i].opts->gsi;
gsi->debugfs_rw_timer_enable = !!input;
if (gsi && atomic_read(&gsi->connected)) {
func = &gsi->function;
gadget = func->config->cdev->gadget;
gsi->debugfs_rw_timer_enable = !!input;
if (gadget->speed >= USB_SPEED_SUPER &&
!gsi->func_is_suspended) {
gsi->debugfs_rw_timer_enable = 0;
del_timer_sync(&gsi->gsi_rw_timer);
continue;
}
if (gsi->debugfs_rw_timer_enable) {
mod_timer(&gsi->gsi_rw_timer, jiffies +
msecs_to_jiffies(gsi->gsi_rw_timer_interval));
log_event_dbg("%s: timer initialized\n", __func__);
} else {
del_timer_sync(&gsi->gsi_rw_timer);
log_event_dbg("%s: timer deleted\n", __func__);
if (gsi->debugfs_rw_timer_enable) {
mod_timer(&gsi->gsi_rw_timer, jiffies +
msecs_to_jiffies(gsi->gsi_rw_timer_interval));
log_event_dbg("%s: timer initialized\n",
__func__);
} else {
del_timer_sync(&gsi->gsi_rw_timer);
log_event_dbg("%s: timer deleted\n", __func__);
}
if (gadget->speed < USB_SPEED_SUPER)
break;
}
}
err:
@ -277,14 +278,19 @@ static int usb_gsi_rw_show(struct seq_file *s, void *unused)
{
struct f_gsi *gsi;
int i;
u8 enable = 0;
gsi = get_connected_gsi();
if (!gsi) {
log_event_dbg("%s: gsi not connected\n", __func__);
return 0;
for (i = 0; i < IPA_USB_MAX_TETH_PROT_SIZE; i++) {
gsi = NULL;
if (inst_status[i].opts)
gsi = inst_status[i].opts->gsi;
if (gsi && atomic_read(&gsi->connected))
enable |= gsi->debugfs_rw_timer_enable;
}
seq_printf(s, "%d\n", gsi->debugfs_rw_timer_enable);
seq_printf(s, "%d\n", enable);
return 0;
}
@ -306,16 +312,11 @@ static const struct file_operations fops_usb_gsi_rw = {
static ssize_t usb_gsi_rw_timer_write(struct file *file,
const char __user *ubuf, size_t count, loff_t *ppos)
{
struct f_gsi *gsi;
struct f_gsi *gsi = NULL;
u16 timer_val;
int i;
int ret;
gsi = get_connected_gsi();
if (!gsi) {
log_event_dbg("%s: gsi not connected\n", __func__);
goto err;
}
if (ubuf == NULL) {
log_event_dbg("%s: buffer is NULL.\n", __func__);
goto err;
@ -332,7 +333,15 @@ static ssize_t usb_gsi_rw_timer_write(struct file *file,
goto err;
}
gsi->gsi_rw_timer_interval = timer_val;
for (i = 0; i < IPA_USB_MAX_TETH_PROT_SIZE; i++) {
gsi = NULL;
if (inst_status[i].opts)
gsi = inst_status[i].opts->gsi;
if (gsi && atomic_read(&gsi->connected))
gsi->gsi_rw_timer_interval = timer_val;
}
err:
return count;
}