Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Penmount serial touchscreen driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (c) 2011 John Sung <penmount.touch@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Based on ELO driver (drivers/input/touchscreen/elo.c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * Copyright (c) 2004 Vojtech Pavlik
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/input/mt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/serio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define DRIVER_DESC	"PenMount serial touchscreen driver"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) MODULE_AUTHOR("John Sung <penmount.touch@gmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) MODULE_DESCRIPTION(DRIVER_DESC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29)  * Definitions & global arrays.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define	PM_MAX_LENGTH	6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #define	PM_MAX_MTSLOT	16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #define	PM_3000_MTSLOT	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define	PM_6250_MTSLOT	12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  * Multi-touch slot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) struct mt_slot {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	unsigned short x, y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	bool active; /* is the touch valid? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47)  * Per-touchscreen data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) struct pm {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	struct input_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	struct serio *serio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	unsigned char data[PM_MAX_LENGTH];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	char phys[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	unsigned char packetsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	unsigned char maxcontacts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	struct mt_slot slots[PM_MAX_MTSLOT];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	void (*parse_packet)(struct pm *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  * pm_mtevent() sends mt events and also emulates pointer movement
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) static void pm_mtevent(struct pm *pm, struct input_dev *input)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	for (i = 0; i < pm->maxcontacts; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		input_mt_slot(input, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		input_mt_report_slot_state(input, MT_TOOL_FINGER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 				pm->slots[i].active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		if (pm->slots[i].active) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 			input_event(input, EV_ABS, ABS_MT_POSITION_X, pm->slots[i].x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			input_event(input, EV_ABS, ABS_MT_POSITION_Y, pm->slots[i].y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	input_mt_report_pointer_emulation(input, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	input_sync(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85)  * pm_checkpacket() checks if data packet is valid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) static bool pm_checkpacket(unsigned char *packet)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	int total = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	for (i = 0; i < 5; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		total += packet[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	return packet[5] == (unsigned char)~(total & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) static void pm_parse_9000(struct pm *pm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	struct input_dev *dev = pm->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	if ((pm->data[0] & 0x80) && pm->packetsize == ++pm->idx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		input_report_abs(dev, ABS_X, pm->data[1] * 128 + pm->data[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		input_report_abs(dev, ABS_Y, pm->data[3] * 128 + pm->data[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 		input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		input_sync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		pm->idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static void pm_parse_6000(struct pm *pm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	struct input_dev *dev = pm->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if ((pm->data[0] & 0xbf) == 0x30 && pm->packetsize == ++pm->idx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		if (pm_checkpacket(pm->data)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			input_report_abs(dev, ABS_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 					pm->data[2] * 256 + pm->data[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 			input_report_abs(dev, ABS_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 					pm->data[4] * 256 + pm->data[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 			input_report_key(dev, BTN_TOUCH, pm->data[0] & 0x40);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 			input_sync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		pm->idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static void pm_parse_3000(struct pm *pm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	struct input_dev *dev = pm->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	if ((pm->data[0] & 0xce) == 0x40 && pm->packetsize == ++pm->idx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		if (pm_checkpacket(pm->data)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 			int slotnum = pm->data[0] & 0x0f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 			pm->slots[slotnum].active = pm->data[0] & 0x30;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 			pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 			pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 			pm_mtevent(pm, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 		pm->idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static void pm_parse_6250(struct pm *pm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	struct input_dev *dev = pm->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	if ((pm->data[0] & 0xb0) == 0x30 && pm->packetsize == ++pm->idx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		if (pm_checkpacket(pm->data)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 			int slotnum = pm->data[0] & 0x0f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			pm->slots[slotnum].active = pm->data[0] & 0x40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 			pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 			pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 			pm_mtevent(pm, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		pm->idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) static irqreturn_t pm_interrupt(struct serio *serio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		unsigned char data, unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	struct pm *pm = serio_get_drvdata(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	pm->data[pm->idx] = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	pm->parse_packet(pm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)  * pm_disconnect() is the opposite of pm_connect()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static void pm_disconnect(struct serio *serio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	struct pm *pm = serio_get_drvdata(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	serio_close(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	input_unregister_device(pm->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	kfree(pm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	serio_set_drvdata(serio, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)  * pm_connect() is the routine that is called when someone adds a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)  * new serio device that supports PenMount protocol and registers it as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)  * an input device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) static int pm_connect(struct serio *serio, struct serio_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	struct pm *pm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	int max_x, max_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	pm = kzalloc(sizeof(struct pm), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	input_dev = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	if (!pm || !input_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	pm->serio = serio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	pm->dev = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	pm->maxcontacts = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	input_dev->name = "PenMount Serial TouchScreen";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	input_dev->phys = pm->phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	input_dev->id.bustype = BUS_RS232;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	input_dev->id.vendor = SERIO_PENMOUNT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	input_dev->id.product = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	input_dev->id.version = 0x0100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	input_dev->dev.parent = &serio->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	switch (serio->id.id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		pm->packetsize = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		pm->parse_packet = pm_parse_9000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		input_dev->id.product = 0x9000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		max_x = max_y = 0x3ff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		pm->packetsize = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		pm->parse_packet = pm_parse_6000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		input_dev->id.product = 0x6000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		max_x = max_y = 0x3ff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 		pm->packetsize = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		pm->parse_packet = pm_parse_3000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		input_dev->id.product = 0x3000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		max_x = max_y = 0x7ff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		pm->maxcontacts = PM_3000_MTSLOT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	case 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		pm->packetsize = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		pm->parse_packet = pm_parse_6250;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		input_dev->id.product = 0x6250;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		max_x = max_y = 0x3ff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		pm->maxcontacts = PM_6250_MTSLOT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	input_set_abs_params(pm->dev, ABS_X, 0, max_x, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	input_set_abs_params(pm->dev, ABS_Y, 0, max_y, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	if (pm->maxcontacts > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		input_mt_init_slots(pm->dev, pm->maxcontacts, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 		input_set_abs_params(pm->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 				     ABS_MT_POSITION_X, 0, max_x, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		input_set_abs_params(pm->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 				     ABS_MT_POSITION_Y, 0, max_y, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	serio_set_drvdata(serio, pm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	err = serio_open(serio, drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 		goto fail2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	err = input_register_device(pm->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		goto fail3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)  fail3:	serio_close(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)  fail2:	serio_set_drvdata(serio, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)  fail1:	input_free_device(input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	kfree(pm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)  * The serio driver structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) static const struct serio_device_id pm_serio_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 		.type	= SERIO_RS232,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 		.proto	= SERIO_PENMOUNT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		.id	= SERIO_ANY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 		.extra	= SERIO_ANY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	{ 0 }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) MODULE_DEVICE_TABLE(serio, pm_serio_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) static struct serio_driver pm_drv = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	.driver		= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		.name	= "serio-penmount",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	.description	= DRIVER_DESC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	.id_table	= pm_serio_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	.interrupt	= pm_interrupt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	.connect	= pm_connect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	.disconnect	= pm_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) module_serio_driver(pm_drv);