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Commit 6245bde2 authored by Przemo Firszt's avatar Przemo Firszt Committed by Jiri Kosina
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HID: wacom: Add pad buttons reporting on Intuos4 WL 



This patch adds reporting of 1 wheel button and 8 strip buttons for Intuos4 WL.
The buttons are reported as BTN_0 to BTN_9. The change of type butstate variable
is required as the old type 'char' couldn't store state of 9 buttons. The change
is not affecting Graphire tablet as it only uses first 2 bits of 'butstate'.

Signed-off-by: default avatarPrzemo Firszt <przemo@firszt.eu>
Acked-by：Ping Cheng <pinglinux@gmail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent e0829e9c

drivers/hid/hid-wacom.c

+35 −1
Original line number Diff line number Diff line
@@ -31,9 +31,11 @@ 


#include "hid-ids.h"



#define PAD_DEVICE_ID	0x0F



struct wacom_data {

	__u16 tool;

	unsigned char butstate;

	__u16 butstate;

	__u8 features;

	__u32 id;

	__u32 serial;
@@ -316,6 +318,30 @@ static int wacom_gr_parse_report(struct hid_device *hdev, 
	return 1;

}



static void wacom_i4_parse_button_report(struct wacom_data *wdata,

			struct input_dev *input, unsigned char *data)

{

	__u16 new_butstate;



	new_butstate = (data[3] << 1) | (data[2] & 0x01);

	if (new_butstate != wdata->butstate) {

		wdata->butstate = new_butstate;

		input_report_key(input, BTN_0, new_butstate & 0x001);

		input_report_key(input, BTN_1, new_butstate & 0x002);

		input_report_key(input, BTN_2, new_butstate & 0x004);

		input_report_key(input, BTN_3, new_butstate & 0x008);

		input_report_key(input, BTN_4, new_butstate & 0x010);

		input_report_key(input, BTN_5, new_butstate & 0x020);

		input_report_key(input, BTN_6, new_butstate & 0x040);

		input_report_key(input, BTN_7, new_butstate & 0x080);

		input_report_key(input, BTN_8, new_butstate & 0x100);

		input_report_key(input, BTN_TOOL_FINGER, 1);

		input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);

		input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);

		input_sync(input);

	}

}



static void wacom_i4_parse_pen_report(struct wacom_data *wdata,

			struct input_dev *input, unsigned char *data)

{
@@ -389,6 +415,7 @@ static void wacom_i4_parse_report(struct hid_device *hdev, 
		wdata->features = data[2];

		break;

	case 0x0C: /* Button report */

		wacom_i4_parse_button_report(wdata, input, data);

		break;

	default:

		hid_err(hdev, "Unknown report: %d,%d\n", data[0], data[1]);
@@ -484,6 +511,13 @@ static int wacom_input_mapped(struct hid_device *hdev, struct hid_input *hi, 
		break;

	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:

		__set_bit(ABS_MISC, input->absbit);

		__set_bit(BTN_2, input->keybit);

		__set_bit(BTN_3, input->keybit);

		__set_bit(BTN_4, input->keybit);

		__set_bit(BTN_5, input->keybit);

		__set_bit(BTN_6, input->keybit);

		__set_bit(BTN_7, input->keybit);

		__set_bit(BTN_8, input->keybit);

		input_set_abs_params(input, ABS_X, 0, 40640, 4, 0);

		input_set_abs_params(input, ABS_Y, 0, 25400, 4, 0);

		input_set_abs_params(input, ABS_PRESSURE, 0, 2047, 0, 0);