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authorDavid Herrmann <dh.herrmann@gmail.com>2013-07-15 19:10:13 +0200
committerJiri Kosina <jkosina@suse.cz>2013-07-31 10:31:21 +0200
commitbfde79cb3541170f8413bc8be34406f86c49392a (patch)
treef08ae0b039cfaa1bd48978902fb518a6368735da /drivers/hid
parent60682284e40be070a4a13df2cb332286b4750f8a (diff)
HID: usbhid: use generic hidinput_input_event()
HID core provides the same functionality as we do, so drop the custom hidinput_input_event() handler. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/usbhid/hid-core.c74
-rw-r--r--drivers/hid/usbhid/usbhid.h3
2 files changed, 3 insertions, 74 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 62b51316176c..8c3235705679 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -649,72 +649,6 @@ static void usbhid_submit_report(struct hid_device *hid, struct hid_report *repo
spin_unlock_irqrestore(&usbhid->lock, flags);
}
-/* Workqueue routine to send requests to change LEDs */
-static void hid_led(struct work_struct *work)
-{
- struct usbhid_device *usbhid =
- container_of(work, struct usbhid_device, led_work);
- struct hid_device *hid = usbhid->hid;
- struct hid_field *field;
- unsigned long flags;
-
- field = hidinput_get_led_field(hid);
- if (!field) {
- hid_warn(hid, "LED event field not found\n");
- return;
- }
-
- /*
- * field->report is accessed unlocked regarding HID core. So there might
- * be another incoming SET-LED request from user-space, which changes
- * the LED state while we assemble our outgoing buffer. However, this
- * doesn't matter as hid_output_report() correctly converts it into a
- * boolean value no matter what information is currently set on the LED
- * field (even garbage). So the remote device will always get a valid
- * request.
- * And in case we send a wrong value, a next hid_led() worker is spawned
- * for every SET-LED request so the following hid_led() worker will send
- * the correct value, guaranteed!
- */
-
- spin_lock_irqsave(&usbhid->lock, flags);
- if (!test_bit(HID_DISCONNECTED, &usbhid->iofl)) {
- usbhid->ledcount = hidinput_count_leds(hid);
- hid_dbg(usbhid->hid, "New ledcount = %u\n", usbhid->ledcount);
- __usbhid_submit_report(hid, field->report, USB_DIR_OUT);
- }
- spin_unlock_irqrestore(&usbhid->lock, flags);
-}
-
-static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
-{
- struct hid_device *hid = input_get_drvdata(dev);
- struct usbhid_device *usbhid = hid->driver_data;
- struct hid_field *field;
- int offset;
-
- if (type == EV_FF)
- return input_ff_event(dev, type, code, value);
-
- if (type != EV_LED)
- return -1;
-
- if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
- hid_warn(dev, "event field not found\n");
- return -1;
- }
-
- hid_set_field(field, offset, value);
-
- /*
- * Defer performing requested LED action.
- * This is more likely gather all LED changes into a single URB.
- */
- schedule_work(&usbhid->led_work);
-
- return 0;
-}
-
static int usbhid_wait_io(struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
@@ -1283,7 +1217,6 @@ static struct hid_ll_driver usb_hid_driver = {
.open = usbhid_open,
.close = usbhid_close,
.power = usbhid_power,
- .hidinput_input_event = usb_hidinput_input_event,
.request = usbhid_request,
.wait = usbhid_wait_io,
.idle = usbhid_idle,
@@ -1377,8 +1310,6 @@ static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *
setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid);
spin_lock_init(&usbhid->lock);
- INIT_WORK(&usbhid->led_work, hid_led);
-
ret = hid_add_device(hid);
if (ret) {
if (ret != -ENODEV)
@@ -1411,7 +1342,6 @@ static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid)
{
del_timer_sync(&usbhid->io_retry);
cancel_work_sync(&usbhid->reset_work);
- cancel_work_sync(&usbhid->led_work);
}
static void hid_cease_io(struct usbhid_device *usbhid)
@@ -1531,15 +1461,17 @@ static int hid_suspend(struct usb_interface *intf, pm_message_t message)
struct usbhid_device *usbhid = hid->driver_data;
int status = 0;
bool driver_suspended = false;
+ unsigned int ledcount;
if (PMSG_IS_AUTO(message)) {
+ ledcount = hidinput_count_leds(hid);
spin_lock_irq(&usbhid->lock); /* Sync with error handler */
if (!test_bit(HID_RESET_PENDING, &usbhid->iofl)
&& !test_bit(HID_CLEAR_HALT, &usbhid->iofl)
&& !test_bit(HID_OUT_RUNNING, &usbhid->iofl)
&& !test_bit(HID_CTRL_RUNNING, &usbhid->iofl)
&& !test_bit(HID_KEYS_PRESSED, &usbhid->iofl)
- && (!usbhid->ledcount || ignoreled))
+ && (!ledcount || ignoreled))
{
set_bit(HID_SUSPENDED, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index dbb6af699135..f633c24ce28b 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -92,9 +92,6 @@ struct usbhid_device {
unsigned int retry_delay; /* Delay length in ms */
struct work_struct reset_work; /* Task context for resets */
wait_queue_head_t wait; /* For sleeping */
- int ledcount; /* counting the number of active leds */
-
- struct work_struct led_work; /* Task context for setting LEDs */
};
#define hid_to_usb_dev(hid_dev) \

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