1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* ----------------------------------------------------------------------------
3  * touchkit_ps2.c  --  Driver for eGalax TouchKit PS/2 Touchscreens
9  * Based upon touchkitusb.c
36 #define TOUCHKIT_GET_TOUCHED(packet)	(((packet)[0]) & 0x01)  argument
37 #define TOUCHKIT_GET_X(packet)		(((packet)[1] << 7) | (packet)[2])  argument
38 #define TOUCHKIT_GET_Y(packet)		(((packet)[3] << 7) | (packet)[4])  argument
42 	unsigned char *packet = psmouse->packet;  in touchkit_ps2_process_byte()  local
43 	struct input_dev *dev = psmouse->dev;  in touchkit_ps2_process_byte()
45 	if (psmouse->pktcnt != 5)  in touchkit_ps2_process_byte()
48 	input_report_abs(dev, ABS_X, TOUCHKIT_GET_X(packet));  in touchkit_ps2_process_byte()
49 	input_report_abs(dev, ABS_Y, TOUCHKIT_GET_Y(packet));  in touchkit_ps2_process_byte()
50 	input_report_key(dev, BTN_TOUCH, TOUCHKIT_GET_TOUCHED(packet));  in touchkit_ps2_process_byte()
58 	struct input_dev *dev = psmouse->dev;  in touchkit_ps2_detect()
66 	if (ps2_command(&psmouse->ps2dev, param, command))  in touchkit_ps2_detect()
67 		return -ENODEV;  in touchkit_ps2_detect()
71 		return -ENODEV;  in touchkit_ps2_detect()
74 		dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);  in touchkit_ps2_detect()
75 		dev->keybit[BIT_WORD(BTN_MOUSE)] = 0;  in touchkit_ps2_detect()
76 		dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);  in touchkit_ps2_detect()
80 		psmouse->vendor = "eGalax";  in touchkit_ps2_detect()
81 		psmouse->name = "Touchscreen";  in touchkit_ps2_detect()
82 		psmouse->protocol_handler = touchkit_ps2_process_byte;  in touchkit_ps2_detect()
83 		psmouse->pktsize = 5;  in touchkit_ps2_detect()