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Input: ati_remote2 - add autosuspend support 

Signed-off-by: Ville Syrjala <syrjala@sci.fi>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Ville Syrjala 2008-07-03 10:45:37 -04:00 committed by Dmitry Torokhov
parent 1971b9d56f
commit d6505ab9cd
1 changed files with 127 additions and 6 deletions
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133
drivers/input/misc/ati_remote2.c
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@ -45,6 +45,13 @@ static struct usb_device_id ati_remote2_id_table[] = {
};
MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
static DEFINE_MUTEX(ati_remote2_mutex);
enum {
ATI_REMOTE2_OPENED = 0x1,
ATI_REMOTE2_SUSPENDED = 0x2,
};
enum {
ATI_REMOTE2_AUX1,
ATI_REMOTE2_AUX2,
@ -124,46 +131,103 @@ struct ati_remote2 {
/* Each mode (AUX1-AUX4 and PC) can have an independent keymap. */
u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
unsigned int flags;
};
static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
static void ati_remote2_disconnect(struct usb_interface *interface);
static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
static int ati_remote2_resume(struct usb_interface *interface);
static struct usb_driver ati_remote2_driver = {
.name = "ati_remote2",
.probe = ati_remote2_probe,
.disconnect = ati_remote2_disconnect,
.id_table = ati_remote2_id_table,
.suspend = ati_remote2_suspend,
.resume = ati_remote2_resume,
.supports_autosuspend = 1,
};
static int ati_remote2_open(struct input_dev *idev)
static int ati_remote2_submit_urbs(struct ati_remote2 *ar2)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
int r;
r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
if (r) {
dev_err(&ar2->intf[0]->dev,
"%s: usb_submit_urb() = %d\n", __func__, r);
"%s(): usb_submit_urb() = %d\n", __func__, r);
return r;
}
r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
if (r) {
usb_kill_urb(ar2->urb[0]);
dev_err(&ar2->intf[1]->dev,
"%s: usb_submit_urb() = %d\n", __func__, r);
"%s(): usb_submit_urb() = %d\n", __func__, r);
return r;
}
return 0;
}
static void ati_remote2_kill_urbs(struct ati_remote2 *ar2)
{
usb_kill_urb(ar2->urb[1]);
usb_kill_urb(ar2->urb[0]);
}
static int ati_remote2_open(struct input_dev *idev)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
int r;
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
r = usb_autopm_get_interface(ar2->intf[0]);
if (r) {
dev_err(&ar2->intf[0]->dev,
"%s(): usb_autopm_get_interface() = %d\n", __func__, r);
goto fail1;
}
mutex_lock(&ati_remote2_mutex);
if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) {
r = ati_remote2_submit_urbs(ar2);
if (r)
goto fail2;
}
ar2->flags |= ATI_REMOTE2_OPENED;
mutex_unlock(&ati_remote2_mutex);
usb_autopm_put_interface(ar2->intf[0]);
return 0;
fail2:
mutex_unlock(&ati_remote2_mutex);
usb_autopm_put_interface(ar2->intf[0]);
fail1:
return r;
}
static void ati_remote2_close(struct input_dev *idev)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
usb_kill_urb(ar2->urb[0]);
usb_kill_urb(ar2->urb[1]);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
mutex_lock(&ati_remote2_mutex);
if (!(ar2->flags & ATI_REMOTE2_SUSPENDED))
ati_remote2_kill_urbs(ar2);
ar2->flags &= ~ATI_REMOTE2_OPENED;
mutex_unlock(&ati_remote2_mutex);
}
static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
@ -288,6 +352,7 @@ static void ati_remote2_complete_mouse(struct urb *urb)
switch (urb->status) {
case 0:
usb_mark_last_busy(ar2->udev);
ati_remote2_input_mouse(ar2);
break;
case -ENOENT:
@ -298,6 +363,7 @@ static void ati_remote2_complete_mouse(struct urb *urb)
"%s(): urb status = %d\n", __func__, urb->status);
return;
default:
usb_mark_last_busy(ar2->udev);
dev_err(&ar2->intf[0]->dev,
"%s(): urb status = %d\n", __func__, urb->status);
}
@ -315,6 +381,7 @@ static void ati_remote2_complete_key(struct urb *urb)
switch (urb->status) {
case 0:
usb_mark_last_busy(ar2->udev);
ati_remote2_input_key(ar2);
break;
case -ENOENT:
@ -325,6 +392,7 @@ static void ati_remote2_complete_key(struct urb *urb)
"%s(): urb status = %d\n", __func__, urb->status);
return;
default:
usb_mark_last_busy(ar2->udev);
dev_err(&ar2->intf[1]->dev,
"%s(): urb status = %d\n", __func__, urb->status);
}
@ -562,6 +630,8 @@ static int ati_remote2_probe(struct usb_interface *interface, const struct usb_d
usb_set_intfdata(interface, ar2);
interface->needs_remote_wakeup = 1;
return 0;
fail2:
@ -594,6 +664,57 @@ static void ati_remote2_disconnect(struct usb_interface *interface)
kfree(ar2);
}
static int ati_remote2_suspend(struct usb_interface *interface,
pm_message_t message)
{
struct ati_remote2 *ar2;
struct usb_host_interface *alt = interface->cur_altsetting;
if (alt->desc.bInterfaceNumber)
return 0;
ar2 = usb_get_intfdata(interface);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
mutex_lock(&ati_remote2_mutex);
if (ar2->flags & ATI_REMOTE2_OPENED)
ati_remote2_kill_urbs(ar2);
ar2->flags |= ATI_REMOTE2_SUSPENDED;
mutex_unlock(&ati_remote2_mutex);
return 0;
}
static int ati_remote2_resume(struct usb_interface *interface)
{
struct ati_remote2 *ar2;
struct usb_host_interface *alt = interface->cur_altsetting;
int r = 0;
if (alt->desc.bInterfaceNumber)
return 0;
ar2 = usb_get_intfdata(interface);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
mutex_lock(&ati_remote2_mutex);
if (ar2->flags & ATI_REMOTE2_OPENED)
r = ati_remote2_submit_urbs(ar2);
if (!r)
ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
mutex_unlock(&ati_remote2_mutex);
return r;
}
static int __init ati_remote2_init(void)
{
int r;