[PATCH v2 08/23] Input - wacom: split out the pad device for the wireless receiver

From: Benjamin Tissoires
Date: Tue Jul 15 2014 - 14:53:30 EST


The Wireless Receiver should also behave in the same way than regular
USB devices.

To simplify the unregistering of the different devices,
wacom_unregister_inputs() is introduced.
For consistency, the function wacom_register_input() is renamed into
wacom_register_inputs().

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
Reviewed-by: Ping Cheng <pingc@xxxxxxxxx>
Reviewed-by: Jason Gerecke <killertofu@xxxxxxxxx>
---

no changes in v2

drivers/input/tablet/wacom_sys.c | 46 ++++++++++++++++++++--------------------
1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index b258485..dd0dbc2 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -1142,7 +1142,17 @@ static struct input_dev *wacom_allocate_input(struct wacom *wacom)
return input_dev;
}

-static int wacom_register_input(struct wacom *wacom)
+static void wacom_unregister_inputs(struct wacom *wacom)
+{
+ if (wacom->wacom_wac.input)
+ input_unregister_device(wacom->wacom_wac.input);
+ if (wacom->wacom_wac.pad_input)
+ input_unregister_device(wacom->wacom_wac.pad_input);
+ wacom->wacom_wac.input = NULL;
+ wacom->wacom_wac.pad_input = NULL;
+}
+
+static int wacom_register_inputs(struct wacom *wacom)
{
struct input_dev *input_dev, *pad_input_dev;
struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
@@ -1214,16 +1224,12 @@ static void wacom_wireless_work(struct work_struct *work)
/* Stylus interface */
wacom1 = usb_get_intfdata(usbdev->config->interface[1]);
wacom_wac1 = &(wacom1->wacom_wac);
- if (wacom_wac1->input)
- input_unregister_device(wacom_wac1->input);
- wacom_wac1->input = NULL;
+ wacom_unregister_inputs(wacom1);

/* Touch interface */
wacom2 = usb_get_intfdata(usbdev->config->interface[2]);
wacom_wac2 = &(wacom2->wacom_wac);
- if (wacom_wac2->input)
- input_unregister_device(wacom_wac2->input);
- wacom_wac2->input = NULL;
+ wacom_unregister_inputs(wacom2);

if (wacom_wac->pid == 0) {
dev_info(&wacom->intf->dev, "wireless tablet disconnected\n");
@@ -1253,9 +1259,11 @@ static void wacom_wireless_work(struct work_struct *work)
wacom_wac1->features.device_type = BTN_TOOL_PEN;
snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen",
wacom_wac1->features.name);
+ snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad",
+ wacom_wac1->features.name);
wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max;
wacom_wac1->shared->type = wacom_wac1->features.type;
- error = wacom_register_input(wacom1);
+ error = wacom_register_inputs(wacom1);
if (error)
goto fail;

@@ -1273,7 +1281,9 @@ static void wacom_wireless_work(struct work_struct *work)
else
snprintf(wacom_wac2->name, WACOM_NAME_MAX,
"%s (WL) Pad",wacom_wac2->features.name);
- error = wacom_register_input(wacom2);
+ snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX,
+ "%s (WL) Pad", wacom_wac2->features.name);
+ error = wacom_register_inputs(wacom2);
if (error)
goto fail;

@@ -1290,15 +1300,8 @@ static void wacom_wireless_work(struct work_struct *work)
return;

fail:
- if (wacom_wac2->input) {
- input_unregister_device(wacom_wac2->input);
- wacom_wac2->input = NULL;
- }
-
- if (wacom_wac1->input) {
- input_unregister_device(wacom_wac1->input);
- wacom_wac1->input = NULL;
- }
+ wacom_unregister_inputs(wacom1);
+ wacom_unregister_inputs(wacom2);
return;
}

@@ -1444,7 +1447,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
goto fail4;

if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
- error = wacom_register_input(wacom);
+ error = wacom_register_inputs(wacom);
if (error)
goto fail5;
}
@@ -1484,10 +1487,7 @@ static void wacom_disconnect(struct usb_interface *intf)

usb_kill_urb(wacom->irq);
cancel_work_sync(&wacom->work);
- if (wacom->wacom_wac.input)
- input_unregister_device(wacom->wacom_wac.input);
- if (wacom->wacom_wac.pad_input)
- input_unregister_device(wacom->wacom_wac.pad_input);
+ wacom_unregister_inputs(wacom);
wacom_destroy_battery(wacom);
wacom_destroy_leds(wacom);
usb_free_urb(wacom->irq);
--
2.0.0

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