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Input: appletouch - implement reset-resume logic 

On some boxes the touchpad needs to be reinitialized after resume to make
it function again. This fixes bugzilla #10825.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Oliver Neukum 2008-06-17 11:56:55 -04:00 committed by Dmitry Torokhov
parent 2f6a77d565
commit 90d95ef617
2 changed files with 44 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
drivers/input/mouse/appletouch.c
View File

@ -589,6 +589,21 @@ static void atp_close(struct input_dev *input)
dev->open = 0;
}
static int atp_handle_geyser(struct atp *dev)
{
struct usb_device *udev = dev->udev;
if (!atp_is_fountain(dev)) {
/* switch to raw sensor mode */
if (atp_geyser_init(udev))
return -EIO;
printk(KERN_INFO "appletouch: Geyser mode initialized.\n");
}
return 0;
}
static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id)
{
struct atp *dev;
@ -633,14 +648,6 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
else
dev->datalen = 81;
if (!atp_is_fountain(dev)) {
/* switch to raw sensor mode */
if (atp_geyser_init(udev))
goto err_free_devs;
printk(KERN_INFO "appletouch: Geyser mode initialized.\n");
}
dev->urb = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->urb)
goto err_free_devs;
@ -654,6 +661,10 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
usb_rcvintpipe(udev, int_in_endpointAddr),
dev->data, dev->datalen, atp_complete, dev, 1);
error = atp_handle_geyser(dev);
if (error)
goto err_free_buffer;
usb_make_path(udev, dev->phys, sizeof(dev->phys));
strlcat(dev->phys, "/input0", sizeof(dev->phys));
@ -744,6 +755,20 @@ static void atp_disconnect(struct usb_interface *iface)
printk(KERN_INFO "input: appletouch disconnected\n");
}
static int atp_recover(struct atp *dev)
{
int error;
error = atp_handle_geyser(dev);
if (error)
return error;
if (dev->open && usb_submit_urb(dev->urb, GFP_ATOMIC))
return -EIO;
return 0;
}
static int atp_suspend(struct usb_interface *iface, pm_message_t message)
{
struct atp *dev = usb_get_intfdata(iface);
@ -764,12 +789,20 @@ static int atp_resume(struct usb_interface *iface)
return 0;
}
static int atp_reset_resume(struct usb_interface *iface)
{
struct atp *dev = usb_get_intfdata(iface);
return atp_recover(dev);
}
static struct usb_driver atp_driver = {
.name = "appletouch",
.probe = atp_probe,
.disconnect = atp_disconnect,
.suspend = atp_suspend,
.resume = atp_resume,
.reset_resume = atp_reset_resume,
.id_table = atp_table,
};

3
drivers/usb/core/quirks.c
View File

@ -47,6 +47,9 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Edirol SD-20 */
{ USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
/* appletouch */
{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
/* M-Systems Flash Disk Pioneers */
{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },