Input: lifebook - fix settings for CF-72
[linux-2.6.git] / drivers / input / mouse / lifebook.c
1 /*
2  * Fujitsu B-series Lifebook PS/2 TouchScreen driver
3  *
4  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
5  * Copyright (c) 2005 Kenan Esau <kenan.esau@conan.de>
6  *
7  * TouchScreen detection, absolute mode setting and packet layout is taken from
8  * Harald Hoyer's description of the device.
9  *
10  * This program is free software; you can redistribute it and/or modify it
11  * under the terms of the GNU General Public License version 2 as published by
12  * the Free Software Foundation.
13  */
14
15 #include <linux/input.h>
16 #include <linux/serio.h>
17 #include <linux/libps2.h>
18 #include <linux/dmi.h>
19
20 #include "psmouse.h"
21 #include "lifebook.h"
22
23 struct lifebook_data {
24         struct input_dev *dev2;         /* Relative device */
25         char phys[32];
26 };
27
28 static const char *desired_serio_phys;
29
30 static int lifebook_set_serio_phys(const struct dmi_system_id *d)
31 {
32         desired_serio_phys = d->driver_data;
33         return 0;
34 }
35
36 static bool lifebook_use_6byte_proto;
37
38 static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
39 {
40         lifebook_use_6byte_proto = true;
41         return 0;
42 }
43
44 static const struct dmi_system_id lifebook_dmi_table[] = {
45         {
46                 .ident = "FLORA-ie 55mi",
47                 .matches = {
48                         DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
49                 },
50         },
51         {
52                 .ident = "LifeBook B",
53                 .matches = {
54                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"),
55                 },
56         },
57         {
58                 .ident = "Lifebook B",
59                 .matches = {
60                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
61                 },
62         },
63         {
64                 .ident = "Lifebook B-2130",
65                 .matches = {
66                         DMI_MATCH(DMI_BOARD_NAME, "ZEPHYR"),
67                 },
68         },
69         {
70                 .ident = "Lifebook B213x/B2150",
71                 .matches = {
72                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
73                 },
74         },
75         {
76                 .ident = "Zephyr",
77                 .matches = {
78                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"),
79                 },
80         },
81         {
82                 .ident = "CF-18",
83                 .matches = {
84                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
85                 },
86                 .callback = lifebook_set_serio_phys,
87                 .driver_data = "isa0060/serio3",
88         },
89         {
90                 .ident = "Panasonic CF-28",
91                 .matches = {
92                         DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
93                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-28"),
94                 },
95                 .callback = lifebook_set_6byte_proto,
96         },
97         {
98                 .ident = "Panasonic CF-29",
99                 .matches = {
100                         DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
101                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
102                 },
103                 .callback = lifebook_set_6byte_proto,
104         },
105         {
106                 .ident = "CF-72",
107                 .matches = {
108                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-72"),
109                 },
110                 .callback = lifebook_set_6byte_proto,
111         },
112         {
113                 .ident = "Lifebook B142",
114                 .matches = {
115                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
116                 },
117         },
118         { }
119 };
120
121 static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
122 {
123         struct lifebook_data *priv = psmouse->private;
124         struct input_dev *dev1 = psmouse->dev;
125         struct input_dev *dev2 = priv ? priv->dev2 : NULL;
126         unsigned char *packet = psmouse->packet;
127         bool relative_packet = packet[0] & 0x08;
128
129         if (relative_packet || !lifebook_use_6byte_proto) {
130                 if (psmouse->pktcnt != 3)
131                         return PSMOUSE_GOOD_DATA;
132         } else {
133                 switch (psmouse->pktcnt) {
134                 case 1:
135                         return (packet[0] & 0xf8) == 0x00 ?
136                                 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
137                 case 2:
138                         return PSMOUSE_GOOD_DATA;
139                 case 3:
140                         return ((packet[2] & 0x30) << 2) == (packet[2] & 0xc0) ?
141                                 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
142                 case 4:
143                         return (packet[3] & 0xf8) == 0xc0 ?
144                                 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
145                 case 5:
146                         return (packet[4] & 0xc0) == (packet[2] & 0xc0) ?
147                                 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
148                 case 6:
149                         if (((packet[5] & 0x30) << 2) != (packet[5] & 0xc0))
150                                 return PSMOUSE_BAD_DATA;
151                         if ((packet[5] & 0xc0) != (packet[1] & 0xc0))
152                                 return PSMOUSE_BAD_DATA;
153                         break; /* report data */
154                 }
155         }
156
157         if (relative_packet) {
158                 if (!dev2)
159                         printk(KERN_WARNING "lifebook.c: got relative packet "
160                                 "but no relative device set up\n");
161         } else {
162                 if (lifebook_use_6byte_proto) {
163                         input_report_abs(dev1, ABS_X,
164                                 ((packet[1] & 0x3f) << 6) | (packet[2] & 0x3f));
165                         input_report_abs(dev1, ABS_Y,
166                                 4096 - (((packet[4] & 0x3f) << 6) | (packet[5] & 0x3f)));
167                 } else {
168                         input_report_abs(dev1, ABS_X,
169                                 (packet[1] | ((packet[0] & 0x30) << 4)));
170                         input_report_abs(dev1, ABS_Y,
171                                 1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
172                 }
173                 input_report_key(dev1, BTN_TOUCH, packet[0] & 0x04);
174                 input_sync(dev1);
175         }
176
177         if (dev2) {
178                 if (relative_packet) {
179                         input_report_rel(dev2, REL_X,
180                                 ((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
181                         input_report_rel(dev2, REL_Y,
182                                  -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
183                 }
184                 input_report_key(dev2, BTN_LEFT, packet[0] & 0x01);
185                 input_report_key(dev2, BTN_RIGHT, packet[0] & 0x02);
186                 input_sync(dev2);
187         }
188
189         return PSMOUSE_FULL_PACKET;
190 }
191
192 static int lifebook_absolute_mode(struct psmouse *psmouse)
193 {
194         struct ps2dev *ps2dev = &psmouse->ps2dev;
195         unsigned char param;
196
197         if (psmouse_reset(psmouse))
198                 return -1;
199
200         /*
201            Enable absolute output -- ps2_command fails always but if
202            you leave this call out the touchsreen will never send
203            absolute coordinates
204         */
205         param = lifebook_use_6byte_proto ? 0x08 : 0x07;
206         ps2_command(ps2dev, &param, PSMOUSE_CMD_SETRES);
207
208         return 0;
209 }
210
211 static void lifebook_relative_mode(struct psmouse *psmouse)
212 {
213         struct ps2dev *ps2dev = &psmouse->ps2dev;
214         unsigned char param = 0x06;
215
216         ps2_command(ps2dev, &param, PSMOUSE_CMD_SETRES);
217 }
218
219 static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
220 {
221         static const unsigned char params[] = { 0, 1, 2, 2, 3 };
222         unsigned char p;
223
224         if (resolution == 0 || resolution > 400)
225                 resolution = 400;
226
227         p = params[resolution / 100];
228         ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
229         psmouse->resolution = 50 << p;
230 }
231
232 static void lifebook_disconnect(struct psmouse *psmouse)
233 {
234         struct lifebook_data *priv = psmouse->private;
235
236         psmouse_reset(psmouse);
237         if (priv) {
238                 input_unregister_device(priv->dev2);
239                 kfree(priv);
240         }
241         psmouse->private = NULL;
242 }
243
244 int lifebook_detect(struct psmouse *psmouse, bool set_properties)
245 {
246         if (!dmi_check_system(lifebook_dmi_table))
247                 return -1;
248
249         if (desired_serio_phys &&
250             strcmp(psmouse->ps2dev.serio->phys, desired_serio_phys))
251                 return -1;
252
253         if (set_properties) {
254                 psmouse->vendor = "Fujitsu";
255                 psmouse->name = "Lifebook TouchScreen";
256         }
257
258         return 0;
259 }
260
261 static int lifebook_create_relative_device(struct psmouse *psmouse)
262 {
263         struct input_dev *dev2;
264         struct lifebook_data *priv;
265         int error = -ENOMEM;
266
267         priv = kzalloc(sizeof(struct lifebook_data), GFP_KERNEL);
268         dev2 = input_allocate_device();
269         if (!priv || !dev2)
270                 goto err_out;
271
272         priv->dev2 = dev2;
273         snprintf(priv->phys, sizeof(priv->phys),
274                  "%s/input1", psmouse->ps2dev.serio->phys);
275
276         dev2->phys = priv->phys;
277         dev2->name = "PS/2 Touchpad";
278         dev2->id.bustype = BUS_I8042;
279         dev2->id.vendor  = 0x0002;
280         dev2->id.product = PSMOUSE_LIFEBOOK;
281         dev2->id.version = 0x0000;
282         dev2->dev.parent = &psmouse->ps2dev.serio->dev;
283
284         dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
285         dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
286         dev2->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
287                 BIT_MASK(BTN_RIGHT);
288
289         error = input_register_device(priv->dev2);
290         if (error)
291                 goto err_out;
292
293         psmouse->private = priv;
294         return 0;
295
296  err_out:
297         input_free_device(dev2);
298         kfree(priv);
299         return error;
300 }
301
302 int lifebook_init(struct psmouse *psmouse)
303 {
304         struct input_dev *dev1 = psmouse->dev;
305         int max_coord = lifebook_use_6byte_proto ? 4096 : 1024;
306
307         if (lifebook_absolute_mode(psmouse))
308                 return -1;
309
310         dev1->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
311         dev1->relbit[0] = 0;
312         dev1->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
313         input_set_abs_params(dev1, ABS_X, 0, max_coord, 0, 0);
314         input_set_abs_params(dev1, ABS_Y, 0, max_coord, 0, 0);
315
316         if (!desired_serio_phys) {
317                 if (lifebook_create_relative_device(psmouse)) {
318                         lifebook_relative_mode(psmouse);
319                         return -1;
320                 }
321         }
322
323         psmouse->protocol_handler = lifebook_process_byte;
324         psmouse->set_resolution = lifebook_set_resolution;
325         psmouse->disconnect = lifebook_disconnect;
326         psmouse->reconnect  = lifebook_absolute_mode;
327
328         psmouse->model = lifebook_use_6byte_proto ? 6 : 3;
329
330         /*
331          * Use packet size = 3 even when using 6-byte protocol because
332          * that's what POLL will return on Lifebooks (according to spec).
333          */
334         psmouse->pktsize = 3;
335
336         return 0;
337 }
338