54 struct pm {  struct
63 	void (*parse_packet)(struct pm *);  argument
70 static void pm_mtevent(struct pm *pm, struct input_dev *input)  in pm_mtevent()  argument
74 	for (i = 0; i < pm->maxcontacts; ++i) {  in pm_mtevent()
77 				pm->slots[i].active);  in pm_mtevent()
78 		if (pm->slots[i].active) {  in pm_mtevent()
79 			input_event(input, EV_ABS, ABS_MT_POSITION_X, pm->slots[i].x);  in pm_mtevent()
80 			input_event(input, EV_ABS, ABS_MT_POSITION_Y, pm->slots[i].y);  in pm_mtevent()
103 static void pm_parse_9000(struct pm *pm)  in pm_parse_9000()  argument
105 	struct input_dev *dev = pm->dev;  in pm_parse_9000()
107 	if ((pm->data[0] & 0x80) && pm->packetsize == ++pm->idx) {  in pm_parse_9000()
108 		input_report_abs(dev, ABS_X, pm->data[1] * 128 + pm->data[2]);  in pm_parse_9000()
109 		input_report_abs(dev, ABS_Y, pm->data[3] * 128 + pm->data[4]);  in pm_parse_9000()
110 		input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));  in pm_parse_9000()
112 		pm->idx = 0;  in pm_parse_9000()
116 static void pm_parse_6000(struct pm *pm)  in pm_parse_6000()  argument
118 	struct input_dev *dev = pm->dev;  in pm_parse_6000()
120 	if ((pm->data[0] & 0xbf) == 0x30 && pm->packetsize == ++pm->idx) {  in pm_parse_6000()
121 		if (pm_checkpacket(pm->data)) {  in pm_parse_6000()
123 					pm->data[2] * 256 + pm->data[1]);  in pm_parse_6000()
125 					pm->data[4] * 256 + pm->data[3]);  in pm_parse_6000()
126 			input_report_key(dev, BTN_TOUCH, pm->data[0] & 0x40);  in pm_parse_6000()
129 		pm->idx = 0;  in pm_parse_6000()
133 static void pm_parse_3000(struct pm *pm)  in pm_parse_3000()  argument
135 	struct input_dev *dev = pm->dev;  in pm_parse_3000()
137 	if ((pm->data[0] & 0xce) == 0x40 && pm->packetsize == ++pm->idx) {  in pm_parse_3000()
138 		if (pm_checkpacket(pm->data)) {  in pm_parse_3000()
139 			int slotnum = pm->data[0] & 0x0f;  in pm_parse_3000()
140 			pm->slots[slotnum].active = pm->data[0] & 0x30;  in pm_parse_3000()
141 			pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];  in pm_parse_3000()
142 			pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];  in pm_parse_3000()
143 			pm_mtevent(pm, dev);  in pm_parse_3000()
145 		pm->idx = 0;  in pm_parse_3000()
149 static void pm_parse_6250(struct pm *pm)  in pm_parse_6250()  argument
151 	struct input_dev *dev = pm->dev;  in pm_parse_6250()
153 	if ((pm->data[0] & 0xb0) == 0x30 && pm->packetsize == ++pm->idx) {  in pm_parse_6250()
154 		if (pm_checkpacket(pm->data)) {  in pm_parse_6250()
155 			int slotnum = pm->data[0] & 0x0f;  in pm_parse_6250()
156 			pm->slots[slotnum].active = pm->data[0] & 0x40;  in pm_parse_6250()
157 			pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];  in pm_parse_6250()
158 			pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];  in pm_parse_6250()
159 			pm_mtevent(pm, dev);  in pm_parse_6250()
161 		pm->idx = 0;  in pm_parse_6250()
168 	struct pm *pm = serio_get_drvdata(serio);  in pm_interrupt()  local
170 	pm->data[pm->idx] = data;  in pm_interrupt()
172 	pm->parse_packet(pm);  in pm_interrupt()
183 	struct pm *pm = serio_get_drvdata(serio);  in pm_disconnect()  local
187 	input_unregister_device(pm->dev);  in pm_disconnect()
188 	kfree(pm);  in pm_disconnect()
201 	struct pm *pm;  in pm_connect()  local
206 	pm = kzalloc(sizeof(struct pm), GFP_KERNEL);  in pm_connect()
208 	if (!pm || !input_dev) {  in pm_connect()
213 	pm->serio = serio;  in pm_connect()
214 	pm->dev = input_dev;  in pm_connect()
215 	snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);  in pm_connect()
216 	pm->maxcontacts = 1;  in pm_connect()
219 	input_dev->phys = pm->phys;  in pm_connect()
232 		pm->packetsize = 5;  in pm_connect()
233 		pm->parse_packet = pm_parse_9000;  in pm_connect()
239 		pm->packetsize = 6;  in pm_connect()
240 		pm->parse_packet = pm_parse_6000;  in pm_connect()
246 		pm->packetsize = 6;  in pm_connect()
247 		pm->parse_packet = pm_parse_3000;  in pm_connect()
250 		pm->maxcontacts = PM_3000_MTSLOT;  in pm_connect()
254 		pm->packetsize = 6;  in pm_connect()
255 		pm->parse_packet = pm_parse_6250;  in pm_connect()
258 		pm->maxcontacts = PM_6250_MTSLOT;  in pm_connect()
262 	input_set_abs_params(pm->dev, ABS_X, 0, max_x, 0, 0);  in pm_connect()
263 	input_set_abs_params(pm->dev, ABS_Y, 0, max_y, 0, 0);  in pm_connect()
265 	if (pm->maxcontacts > 1) {  in pm_connect()
266 		input_mt_init_slots(pm->dev, pm->maxcontacts, 0);  in pm_connect()
267 		input_set_abs_params(pm->dev,  in pm_connect()
269 		input_set_abs_params(pm->dev,  in pm_connect()
273 	serio_set_drvdata(serio, pm);  in pm_connect()
279 	err = input_register_device(pm->dev);  in pm_connect()
288 	kfree(pm);  in pm_connect()