50 struct pm {  struct
59 	void (*parse_packet)(struct pm *);  argument
66 static void pm_mtevent(struct pm *pm, struct input_dev *input)  in pm_mtevent()  argument
70 	for (i = 0; i < pm->maxcontacts; ++i) {  in pm_mtevent()
73 				pm->slots[i].active);  in pm_mtevent()
74 		if (pm->slots[i].active) {  in pm_mtevent()
75 			input_event(input, EV_ABS, ABS_MT_POSITION_X, pm->slots[i].x);  in pm_mtevent()
76 			input_event(input, EV_ABS, ABS_MT_POSITION_Y, pm->slots[i].y);  in pm_mtevent()
99 static void pm_parse_9000(struct pm *pm)  in pm_parse_9000()  argument
101 	struct input_dev *dev = pm->dev;  in pm_parse_9000()
103 	if ((pm->data[0] & 0x80) && pm->packetsize == ++pm->idx) {  in pm_parse_9000()
104 		input_report_abs(dev, ABS_X, pm->data[1] * 128 + pm->data[2]);  in pm_parse_9000()
105 		input_report_abs(dev, ABS_Y, pm->data[3] * 128 + pm->data[4]);  in pm_parse_9000()
106 		input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));  in pm_parse_9000()
108 		pm->idx = 0;  in pm_parse_9000()
112 static void pm_parse_6000(struct pm *pm)  in pm_parse_6000()  argument
114 	struct input_dev *dev = pm->dev;  in pm_parse_6000()
116 	if ((pm->data[0] & 0xbf) == 0x30 && pm->packetsize == ++pm->idx) {  in pm_parse_6000()
117 		if (pm_checkpacket(pm->data)) {  in pm_parse_6000()
119 					pm->data[2] * 256 + pm->data[1]);  in pm_parse_6000()
121 					pm->data[4] * 256 + pm->data[3]);  in pm_parse_6000()
122 			input_report_key(dev, BTN_TOUCH, pm->data[0] & 0x40);  in pm_parse_6000()
125 		pm->idx = 0;  in pm_parse_6000()
129 static void pm_parse_3000(struct pm *pm)  in pm_parse_3000()  argument
131 	struct input_dev *dev = pm->dev;  in pm_parse_3000()
133 	if ((pm->data[0] & 0xce) == 0x40 && pm->packetsize == ++pm->idx) {  in pm_parse_3000()
134 		if (pm_checkpacket(pm->data)) {  in pm_parse_3000()
135 			int slotnum = pm->data[0] & 0x0f;  in pm_parse_3000()
136 			pm->slots[slotnum].active = pm->data[0] & 0x30;  in pm_parse_3000()
137 			pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];  in pm_parse_3000()
138 			pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];  in pm_parse_3000()
139 			pm_mtevent(pm, dev);  in pm_parse_3000()
141 		pm->idx = 0;  in pm_parse_3000()
145 static void pm_parse_6250(struct pm *pm)  in pm_parse_6250()  argument
147 	struct input_dev *dev = pm->dev;  in pm_parse_6250()
149 	if ((pm->data[0] & 0xb0) == 0x30 && pm->packetsize == ++pm->idx) {  in pm_parse_6250()
150 		if (pm_checkpacket(pm->data)) {  in pm_parse_6250()
151 			int slotnum = pm->data[0] & 0x0f;  in pm_parse_6250()
152 			pm->slots[slotnum].active = pm->data[0] & 0x40;  in pm_parse_6250()
153 			pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];  in pm_parse_6250()
154 			pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];  in pm_parse_6250()
155 			pm_mtevent(pm, dev);  in pm_parse_6250()
157 		pm->idx = 0;  in pm_parse_6250()
164 	struct pm *pm = serio_get_drvdata(serio);  in pm_interrupt()  local
166 	pm->data[pm->idx] = data;  in pm_interrupt()
168 	pm->parse_packet(pm);  in pm_interrupt()
179 	struct pm *pm = serio_get_drvdata(serio);  in pm_disconnect()  local
183 	input_unregister_device(pm->dev);  in pm_disconnect()
184 	kfree(pm);  in pm_disconnect()
197 	struct pm *pm;  in pm_connect()  local
202 	pm = kzalloc(sizeof(*pm), GFP_KERNEL);  in pm_connect()
204 	if (!pm || !input_dev) {  in pm_connect()
209 	pm->serio = serio;  in pm_connect()
210 	pm->dev = input_dev;  in pm_connect()
211 	snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);  in pm_connect()
212 	pm->maxcontacts = 1;  in pm_connect()
215 	input_dev->phys = pm->phys;  in pm_connect()
228 		pm->packetsize = 5;  in pm_connect()
229 		pm->parse_packet = pm_parse_9000;  in pm_connect()
235 		pm->packetsize = 6;  in pm_connect()
236 		pm->parse_packet = pm_parse_6000;  in pm_connect()
242 		pm->packetsize = 6;  in pm_connect()
243 		pm->parse_packet = pm_parse_3000;  in pm_connect()
246 		pm->maxcontacts = PM_3000_MTSLOT;  in pm_connect()
250 		pm->packetsize = 6;  in pm_connect()
251 		pm->parse_packet = pm_parse_6250;  in pm_connect()
254 		pm->maxcontacts = PM_6250_MTSLOT;  in pm_connect()
258 	input_set_abs_params(pm->dev, ABS_X, 0, max_x, 0, 0);  in pm_connect()
259 	input_set_abs_params(pm->dev, ABS_Y, 0, max_y, 0, 0);  in pm_connect()
261 	if (pm->maxcontacts > 1) {  in pm_connect()
262 		input_mt_init_slots(pm->dev, pm->maxcontacts, 0);  in pm_connect()
263 		input_set_abs_params(pm->dev,  in pm_connect()
265 		input_set_abs_params(pm->dev,  in pm_connect()
269 	serio_set_drvdata(serio, pm);  in pm_connect()
275 	err = input_register_device(pm->dev);  in pm_connect()
284 	kfree(pm);  in pm_connect()