1
2
3
4
5
6
7
8
9
10
11
12
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
23struct lifebook_data {
24 struct input_dev *dev2;
25 char phys[32];
26};
27
28static const char *desired_serio_phys;
29
30static int lifebook_set_serio_phys(const struct dmi_system_id *d)
31{
32 desired_serio_phys = d->driver_data;
33 return 0;
34}
35
36static bool lifebook_use_6byte_proto;
37
38static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
39{
40 lifebook_use_6byte_proto = true;
41 return 0;
42}
43
44static 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
121static 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;
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
192static 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
202
203
204
205 param = lifebook_use_6byte_proto ? 0x08 : 0x07;
206 ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
207
208 return 0;
209}
210
211static void lifebook_relative_mode(struct psmouse *psmouse)
212{
213 struct ps2dev *ps2dev = &psmouse->ps2dev;
214 unsigned char param = 0x06;
215
216 ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
217}
218
219static 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
232static 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
244int 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
261static 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
302int 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
332
333
334 psmouse->pktsize = 3;
335
336 return 0;
337}
338
339
