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1da177e4 LT |
1 | /* |
2 | * Generic linux-input device driver for keyboard devices | |
3 | * | |
4 | * Copyright (c) 2001 Brian S. Julin | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * 1. Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions, and the following disclaimer, | |
12 | * without modification. | |
13 | * 2. The name of the author may not be used to endorse or promote products | |
14 | * derived from this software without specific prior written permission. | |
15 | * | |
16 | * Alternatively, this software may be distributed under the terms of the | |
17 | * GNU General Public License ("GPL"). | |
18 | * | |
19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR | |
23 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
28 | * | |
29 | * References: | |
30 | * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A | |
31 | * | |
32 | */ | |
33 | ||
34 | #include <linux/hil.h> | |
35 | #include <linux/input.h> | |
36 | #include <linux/serio.h> | |
37 | #include <linux/kernel.h> | |
38 | #include <linux/module.h> | |
39 | #include <linux/init.h> | |
6777f017 | 40 | #include <linux/completion.h> |
1da177e4 LT |
41 | #include <linux/slab.h> |
42 | #include <linux/pci_ids.h> | |
43 | ||
fa71c605 | 44 | #define PREFIX "HIL: " |
1da177e4 LT |
45 | |
46 | MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>"); | |
fa71c605 | 47 | MODULE_DESCRIPTION("HIL keyboard/mouse driver"); |
1da177e4 | 48 | MODULE_LICENSE("Dual BSD/GPL"); |
fa71c605 DT |
49 | MODULE_ALIAS("serio:ty03pr25id00ex*"); /* HIL keyboard */ |
50 | MODULE_ALIAS("serio:ty03pr25id0Fex*"); /* HIL mouse */ | |
1da177e4 | 51 | |
1437dc30 | 52 | #define HIL_PACKET_MAX_LENGTH 16 |
1da177e4 LT |
53 | |
54 | #define HIL_KBD_SET1_UPBIT 0x01 | |
55 | #define HIL_KBD_SET1_SHIFT 1 | |
3acaf540 | 56 | static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly = |
1da177e4 LT |
57 | { HIL_KEYCODES_SET1 }; |
58 | ||
59 | #define HIL_KBD_SET2_UPBIT 0x01 | |
60 | #define HIL_KBD_SET2_SHIFT 1 | |
61 | /* Set2 is user defined */ | |
62 | ||
63 | #define HIL_KBD_SET3_UPBIT 0x80 | |
64 | #define HIL_KBD_SET3_SHIFT 0 | |
3acaf540 | 65 | static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] __read_mostly = |
1da177e4 LT |
66 | { HIL_KEYCODES_SET3 }; |
67 | ||
3acaf540 | 68 | static const char hil_language[][16] = { HIL_LOCALE_MAP }; |
1da177e4 | 69 | |
1437dc30 | 70 | struct hil_dev { |
102c8c76 | 71 | struct input_dev *dev; |
1da177e4 LT |
72 | struct serio *serio; |
73 | ||
74 | /* Input buffer and index for packets from HIL bus. */ | |
1437dc30 | 75 | hil_packet data[HIL_PACKET_MAX_LENGTH]; |
1da177e4 LT |
76 | int idx4; /* four counts per packet */ |
77 | ||
78 | /* Raw device info records from HIL bus, see hil.h for fields. */ | |
1437dc30 DT |
79 | char idd[HIL_PACKET_MAX_LENGTH]; /* DID byte and IDD record */ |
80 | char rsc[HIL_PACKET_MAX_LENGTH]; /* RSC record */ | |
81 | char exd[HIL_PACKET_MAX_LENGTH]; /* EXD record */ | |
82 | char rnm[HIL_PACKET_MAX_LENGTH + 1]; /* RNM record + NULL term. */ | |
1da177e4 | 83 | |
6777f017 | 84 | struct completion cmd_done; |
fa71c605 DT |
85 | |
86 | bool is_pointer; | |
87 | /* Extra device details needed for pointing devices. */ | |
88 | unsigned int nbtn, naxes; | |
89 | unsigned int btnmap[7]; | |
1da177e4 LT |
90 | }; |
91 | ||
1437dc30 | 92 | static bool hil_dev_is_command_response(hil_packet p) |
1da177e4 | 93 | { |
6777f017 DT |
94 | if ((p & ~HIL_CMDCT_POL) == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL)) |
95 | return false; | |
1da177e4 | 96 | |
6777f017 DT |
97 | if ((p & ~HIL_CMDCT_RPL) == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL)) |
98 | return false; | |
99 | ||
100 | return true; | |
101 | } | |
102 | ||
1437dc30 | 103 | static void hil_dev_handle_command_response(struct hil_dev *dev) |
6777f017 DT |
104 | { |
105 | hil_packet p; | |
106 | char *buf; | |
107 | int i, idx; | |
1da177e4 | 108 | |
1437dc30 DT |
109 | idx = dev->idx4 / 4; |
110 | p = dev->data[idx - 1]; | |
1da177e4 | 111 | |
1da177e4 LT |
112 | switch (p & HIL_PKT_DATA_MASK) { |
113 | case HIL_CMD_IDD: | |
1437dc30 | 114 | buf = dev->idd; |
1da177e4 | 115 | break; |
ffd51f46 | 116 | |
1da177e4 | 117 | case HIL_CMD_RSC: |
1437dc30 | 118 | buf = dev->rsc; |
1da177e4 | 119 | break; |
ffd51f46 | 120 | |
1da177e4 | 121 | case HIL_CMD_EXD: |
1437dc30 | 122 | buf = dev->exd; |
1da177e4 | 123 | break; |
ffd51f46 | 124 | |
1da177e4 | 125 | case HIL_CMD_RNM: |
1437dc30 DT |
126 | dev->rnm[HIL_PACKET_MAX_LENGTH] = 0; |
127 | buf = dev->rnm; | |
1da177e4 | 128 | break; |
ffd51f46 | 129 | |
1da177e4 LT |
130 | default: |
131 | /* These occur when device isn't present */ | |
6777f017 DT |
132 | if (p != (HIL_ERR_INT | HIL_PKT_CMD)) { |
133 | /* Anything else we'd like to know about. */ | |
134 | printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p); | |
135 | } | |
136 | goto out; | |
1da177e4 | 137 | } |
1da177e4 | 138 | |
6777f017 | 139 | for (i = 0; i < idx; i++) |
1437dc30 DT |
140 | buf[i] = dev->data[i] & HIL_PKT_DATA_MASK; |
141 | for (; i < HIL_PACKET_MAX_LENGTH; i++) | |
6777f017 DT |
142 | buf[i] = 0; |
143 | out: | |
1437dc30 | 144 | complete(&dev->cmd_done); |
6777f017 DT |
145 | } |
146 | ||
fa71c605 | 147 | static void hil_dev_handle_kbd_events(struct hil_dev *kbd) |
6777f017 DT |
148 | { |
149 | struct input_dev *dev = kbd->dev; | |
150 | int idx = kbd->idx4 / 4; | |
151 | int i; | |
152 | ||
1da177e4 LT |
153 | switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) { |
154 | case HIL_POL_CHARTYPE_NONE: | |
6777f017 | 155 | return; |
ffd51f46 | 156 | |
1da177e4 | 157 | case HIL_POL_CHARTYPE_ASCII: |
6777f017 DT |
158 | for (i = 1; i < idx - 1; i++) |
159 | input_report_key(dev, kbd->data[i] & 0x7f, 1); | |
1da177e4 | 160 | break; |
ffd51f46 | 161 | |
1da177e4 LT |
162 | case HIL_POL_CHARTYPE_RSVD1: |
163 | case HIL_POL_CHARTYPE_RSVD2: | |
164 | case HIL_POL_CHARTYPE_BINARY: | |
6777f017 DT |
165 | for (i = 1; i < idx - 1; i++) |
166 | input_report_key(dev, kbd->data[i], 1); | |
1da177e4 | 167 | break; |
ffd51f46 | 168 | |
1da177e4 | 169 | case HIL_POL_CHARTYPE_SET1: |
6777f017 DT |
170 | for (i = 1; i < idx - 1; i++) { |
171 | unsigned int key = kbd->data[i]; | |
172 | int up = key & HIL_KBD_SET1_UPBIT; | |
173 | ||
1da177e4 LT |
174 | key &= (~HIL_KBD_SET1_UPBIT & 0xff); |
175 | key = hil_kbd_set1[key >> HIL_KBD_SET1_SHIFT]; | |
6777f017 | 176 | input_report_key(dev, key, !up); |
1da177e4 LT |
177 | } |
178 | break; | |
ffd51f46 | 179 | |
1da177e4 | 180 | case HIL_POL_CHARTYPE_SET2: |
6777f017 DT |
181 | for (i = 1; i < idx - 1; i++) { |
182 | unsigned int key = kbd->data[i]; | |
183 | int up = key & HIL_KBD_SET2_UPBIT; | |
184 | ||
1da177e4 LT |
185 | key &= (~HIL_KBD_SET1_UPBIT & 0xff); |
186 | key = key >> HIL_KBD_SET2_SHIFT; | |
6777f017 | 187 | input_report_key(dev, key, !up); |
1da177e4 LT |
188 | } |
189 | break; | |
ffd51f46 | 190 | |
1da177e4 | 191 | case HIL_POL_CHARTYPE_SET3: |
6777f017 DT |
192 | for (i = 1; i < idx - 1; i++) { |
193 | unsigned int key = kbd->data[i]; | |
194 | int up = key & HIL_KBD_SET3_UPBIT; | |
195 | ||
1da177e4 LT |
196 | key &= (~HIL_KBD_SET1_UPBIT & 0xff); |
197 | key = hil_kbd_set3[key >> HIL_KBD_SET3_SHIFT]; | |
6777f017 | 198 | input_report_key(dev, key, !up); |
1da177e4 LT |
199 | } |
200 | break; | |
201 | } | |
6777f017 DT |
202 | |
203 | input_sync(dev); | |
1da177e4 LT |
204 | } |
205 | ||
fa71c605 DT |
206 | static void hil_dev_handle_ptr_events(struct hil_dev *ptr) |
207 | { | |
208 | struct input_dev *dev = ptr->dev; | |
209 | int idx = ptr->idx4 / 4; | |
210 | hil_packet p = ptr->data[idx - 1]; | |
211 | int i, cnt, laxis; | |
212 | bool absdev, ax16; | |
213 | ||
214 | if ((p & HIL_CMDCT_POL) != idx - 1) { | |
215 | printk(KERN_WARNING PREFIX | |
216 | "Malformed poll packet %x (idx = %i)\n", p, idx); | |
217 | return; | |
218 | } | |
219 | ||
220 | i = (p & HIL_POL_AXIS_ALT) ? 3 : 0; | |
221 | laxis = (p & HIL_POL_NUM_AXES_MASK) + i; | |
222 | ||
223 | ax16 = ptr->idd[1] & HIL_IDD_HEADER_16BIT; /* 8 or 16bit resolution */ | |
224 | absdev = ptr->idd[1] & HIL_IDD_HEADER_ABS; | |
225 | ||
226 | for (cnt = 1; i < laxis; i++) { | |
227 | unsigned int lo, hi, val; | |
228 | ||
229 | lo = ptr->data[cnt++] & HIL_PKT_DATA_MASK; | |
230 | hi = ax16 ? (ptr->data[cnt++] & HIL_PKT_DATA_MASK) : 0; | |
231 | ||
232 | if (absdev) { | |
233 | val = lo + (hi << 8); | |
234 | #ifdef TABLET_AUTOADJUST | |
77edf0c7 | 235 | if (val < input_abs_get_min(dev, ABS_X + i)) |
987a6c02 | 236 | input_abs_set_min(dev, ABS_X + i, val); |
77edf0c7 | 237 | if (val > input_abs_get_max(dev, ABS_X + i)) |
b84ae4a1 | 238 | input_abs_set_max(dev, ABS_X + i, val); |
fa71c605 | 239 | #endif |
987a6c02 | 240 | if (i % 3) |
77edf0c7 | 241 | val = input_abs_get_max(dev, ABS_X + i) - val; |
fa71c605 DT |
242 | input_report_abs(dev, ABS_X + i, val); |
243 | } else { | |
987a6c02 | 244 | val = (int) (((int8_t) lo) | ((int8_t) hi << 8)); |
fa71c605 DT |
245 | if (i % 3) |
246 | val *= -1; | |
247 | input_report_rel(dev, REL_X + i, val); | |
248 | } | |
249 | } | |
250 | ||
251 | while (cnt < idx - 1) { | |
252 | unsigned int btn = ptr->data[cnt++]; | |
253 | int up = btn & 1; | |
254 | ||
255 | btn &= 0xfe; | |
256 | if (btn == 0x8e) | |
257 | continue; /* TODO: proximity == touch? */ | |
258 | if (btn > 0x8c || btn < 0x80) | |
259 | continue; | |
260 | btn = (btn - 0x80) >> 1; | |
261 | btn = ptr->btnmap[btn]; | |
262 | input_report_key(dev, btn, !up); | |
263 | } | |
264 | ||
265 | input_sync(dev); | |
266 | } | |
267 | ||
1437dc30 | 268 | static void hil_dev_process_err(struct hil_dev *dev) |
ffd51f46 | 269 | { |
1da177e4 | 270 | printk(KERN_WARNING PREFIX "errored HIL packet\n"); |
1437dc30 DT |
271 | dev->idx4 = 0; |
272 | complete(&dev->cmd_done); /* just in case somebody is waiting */ | |
1da177e4 LT |
273 | } |
274 | ||
1437dc30 | 275 | static irqreturn_t hil_dev_interrupt(struct serio *serio, |
ffd51f46 | 276 | unsigned char data, unsigned int flags) |
1da177e4 | 277 | { |
1437dc30 | 278 | struct hil_dev *dev; |
1da177e4 LT |
279 | hil_packet packet; |
280 | int idx; | |
281 | ||
1437dc30 DT |
282 | dev = serio_get_drvdata(serio); |
283 | BUG_ON(dev == NULL); | |
1da177e4 | 284 | |
1437dc30 DT |
285 | if (dev->idx4 >= HIL_PACKET_MAX_LENGTH * sizeof(hil_packet)) { |
286 | hil_dev_process_err(dev); | |
6777f017 | 287 | goto out; |
1da177e4 | 288 | } |
6777f017 | 289 | |
1437dc30 DT |
290 | idx = dev->idx4 / 4; |
291 | if (!(dev->idx4 % 4)) | |
292 | dev->data[idx] = 0; | |
293 | packet = dev->data[idx]; | |
294 | packet |= ((hil_packet)data) << ((3 - (dev->idx4 % 4)) * 8); | |
295 | dev->data[idx] = packet; | |
1da177e4 LT |
296 | |
297 | /* Records of N 4-byte hil_packets must terminate with a command. */ | |
1437dc30 | 298 | if ((++dev->idx4 % 4) == 0) { |
6777f017 | 299 | if ((packet & 0xffff0000) != HIL_ERR_INT) { |
1437dc30 | 300 | hil_dev_process_err(dev); |
6777f017 | 301 | } else if (packet & HIL_PKT_CMD) { |
1437dc30 DT |
302 | if (hil_dev_is_command_response(packet)) |
303 | hil_dev_handle_command_response(dev); | |
fa71c605 DT |
304 | else if (dev->is_pointer) |
305 | hil_dev_handle_ptr_events(dev); | |
6777f017 | 306 | else |
fa71c605 | 307 | hil_dev_handle_kbd_events(dev); |
1437dc30 | 308 | dev->idx4 = 0; |
6777f017 | 309 | } |
1da177e4 | 310 | } |
6777f017 | 311 | out: |
1da177e4 LT |
312 | return IRQ_HANDLED; |
313 | } | |
314 | ||
1437dc30 | 315 | static void hil_dev_disconnect(struct serio *serio) |
1da177e4 | 316 | { |
1437dc30 | 317 | struct hil_dev *dev = serio_get_drvdata(serio); |
1da177e4 | 318 | |
1437dc30 | 319 | BUG_ON(dev == NULL); |
1da177e4 | 320 | |
1da177e4 | 321 | serio_close(serio); |
1437dc30 | 322 | input_unregister_device(dev->dev); |
fa71c605 | 323 | serio_set_drvdata(serio, NULL); |
1437dc30 | 324 | kfree(dev); |
1da177e4 LT |
325 | } |
326 | ||
fa71c605 DT |
327 | static void hil_dev_keyboard_setup(struct hil_dev *kbd) |
328 | { | |
329 | struct input_dev *input_dev = kbd->dev; | |
330 | uint8_t did = kbd->idd[0]; | |
331 | int i; | |
332 | ||
333 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); | |
334 | input_dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) | | |
335 | BIT_MASK(LED_SCROLLL); | |
336 | ||
337 | for (i = 0; i < 128; i++) { | |
338 | __set_bit(hil_kbd_set1[i], input_dev->keybit); | |
339 | __set_bit(hil_kbd_set3[i], input_dev->keybit); | |
340 | } | |
341 | __clear_bit(KEY_RESERVED, input_dev->keybit); | |
342 | ||
343 | input_dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE; | |
344 | input_dev->keycodesize = sizeof(hil_kbd_set1[0]); | |
345 | input_dev->keycode = hil_kbd_set1; | |
346 | ||
347 | input_dev->name = strlen(kbd->rnm) ? kbd->rnm : "HIL keyboard"; | |
348 | input_dev->phys = "hpkbd/input0"; | |
349 | ||
350 | printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n", | |
351 | did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]); | |
352 | } | |
353 | ||
354 | static void hil_dev_pointer_setup(struct hil_dev *ptr) | |
355 | { | |
356 | struct input_dev *input_dev = ptr->dev; | |
357 | uint8_t did = ptr->idd[0]; | |
358 | uint8_t *idd = ptr->idd + 1; | |
359 | unsigned int naxsets = HIL_IDD_NUM_AXSETS(*idd); | |
360 | unsigned int i, btntype; | |
361 | const char *txt; | |
362 | ||
363 | ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd); | |
364 | ||
365 | switch (did & HIL_IDD_DID_TYPE_MASK) { | |
366 | case HIL_IDD_DID_TYPE_REL: | |
367 | input_dev->evbit[0] = BIT_MASK(EV_REL); | |
368 | ||
369 | for (i = 0; i < ptr->naxes; i++) | |
370 | __set_bit(REL_X + i, input_dev->relbit); | |
371 | ||
372 | for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++) | |
373 | __set_bit(REL_X + i, input_dev->relbit); | |
374 | ||
375 | txt = "relative"; | |
376 | break; | |
377 | ||
378 | case HIL_IDD_DID_TYPE_ABS: | |
379 | input_dev->evbit[0] = BIT_MASK(EV_ABS); | |
380 | ||
381 | for (i = 0; i < ptr->naxes; i++) | |
382 | input_set_abs_params(input_dev, ABS_X + i, | |
383 | 0, HIL_IDD_AXIS_MAX(idd, i), 0, 0); | |
384 | ||
385 | for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++) | |
386 | input_set_abs_params(input_dev, ABS_X + i, | |
387 | 0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0); | |
388 | ||
389 | #ifdef TABLET_AUTOADJUST | |
390 | for (i = 0; i < ABS_MAX; i++) { | |
77edf0c7 | 391 | int diff = input_abs_get_max(input_dev, ABS_X + i) / 10; |
987a6c02 | 392 | input_abs_set_min(input_dev, ABS_X + i, |
77edf0c7 | 393 | input_abs_get_min(input_dev, ABS_X + i) + diff); |
b84ae4a1 | 394 | input_abs_set_max(input_dev, ABS_X + i, |
77edf0c7 | 395 | input_abs_get_max(input_dev, ABS_X + i) - diff); |
fa71c605 DT |
396 | } |
397 | #endif | |
398 | ||
399 | txt = "absolute"; | |
400 | break; | |
401 | ||
402 | default: | |
403 | BUG(); | |
404 | } | |
405 | ||
406 | ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd); | |
407 | if (ptr->nbtn) | |
408 | input_dev->evbit[0] |= BIT_MASK(EV_KEY); | |
409 | ||
410 | btntype = BTN_MISC; | |
411 | if ((did & HIL_IDD_DID_ABS_TABLET_MASK) == HIL_IDD_DID_ABS_TABLET) | |
412 | #ifdef TABLET_SIMULATES_MOUSE | |
413 | btntype = BTN_TOUCH; | |
414 | #else | |
415 | btntype = BTN_DIGI; | |
416 | #endif | |
417 | if ((did & HIL_IDD_DID_ABS_TSCREEN_MASK) == HIL_IDD_DID_ABS_TSCREEN) | |
418 | btntype = BTN_TOUCH; | |
419 | ||
420 | if ((did & HIL_IDD_DID_REL_MOUSE_MASK) == HIL_IDD_DID_REL_MOUSE) | |
421 | btntype = BTN_MOUSE; | |
422 | ||
423 | for (i = 0; i < ptr->nbtn; i++) { | |
424 | __set_bit(btntype | i, input_dev->keybit); | |
425 | ptr->btnmap[i] = btntype | i; | |
426 | } | |
427 | ||
428 | if (btntype == BTN_MOUSE) { | |
429 | /* Swap buttons 2 and 3 */ | |
430 | ptr->btnmap[1] = BTN_MIDDLE; | |
431 | ptr->btnmap[2] = BTN_RIGHT; | |
432 | } | |
433 | ||
434 | input_dev->name = strlen(ptr->rnm) ? ptr->rnm : "HIL pointer device"; | |
435 | ||
436 | printk(KERN_INFO PREFIX | |
437 | "HIL pointer device found (did: 0x%02x, axis: %s)\n", | |
438 | did, txt); | |
439 | printk(KERN_INFO PREFIX | |
440 | "HIL pointer has %i buttons and %i sets of %i axes\n", | |
441 | ptr->nbtn, naxsets, ptr->naxes); | |
442 | } | |
443 | ||
1437dc30 | 444 | static int hil_dev_connect(struct serio *serio, struct serio_driver *drv) |
1da177e4 | 445 | { |
1437dc30 | 446 | struct hil_dev *dev; |
6777f017 DT |
447 | struct input_dev *input_dev; |
448 | uint8_t did, *idd; | |
6777f017 | 449 | int error; |
95d465fd | 450 | |
1437dc30 | 451 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
6777f017 | 452 | input_dev = input_allocate_device(); |
1437dc30 | 453 | if (!dev || !input_dev) { |
6777f017 | 454 | error = -ENOMEM; |
95d465fd | 455 | goto bail0; |
6777f017 | 456 | } |
95d465fd | 457 | |
1437dc30 DT |
458 | dev->serio = serio; |
459 | dev->dev = input_dev; | |
6777f017 DT |
460 | |
461 | error = serio_open(serio, drv); | |
462 | if (error) | |
463 | goto bail0; | |
1da177e4 | 464 | |
1437dc30 | 465 | serio_set_drvdata(serio, dev); |
1da177e4 LT |
466 | |
467 | /* Get device info. MLC driver supplies devid/status/etc. */ | |
1437dc30 | 468 | init_completion(&dev->cmd_done); |
dd0d5443 DT |
469 | serio_write(serio, 0); |
470 | serio_write(serio, 0); | |
471 | serio_write(serio, HIL_PKT_CMD >> 8); | |
472 | serio_write(serio, HIL_CMD_IDD); | |
1437dc30 | 473 | error = wait_for_completion_killable(&dev->cmd_done); |
6777f017 DT |
474 | if (error) |
475 | goto bail1; | |
1da177e4 | 476 | |
1437dc30 | 477 | init_completion(&dev->cmd_done); |
dd0d5443 DT |
478 | serio_write(serio, 0); |
479 | serio_write(serio, 0); | |
480 | serio_write(serio, HIL_PKT_CMD >> 8); | |
481 | serio_write(serio, HIL_CMD_RSC); | |
1437dc30 | 482 | error = wait_for_completion_killable(&dev->cmd_done); |
6777f017 DT |
483 | if (error) |
484 | goto bail1; | |
1da177e4 | 485 | |
1437dc30 | 486 | init_completion(&dev->cmd_done); |
dd0d5443 DT |
487 | serio_write(serio, 0); |
488 | serio_write(serio, 0); | |
489 | serio_write(serio, HIL_PKT_CMD >> 8); | |
490 | serio_write(serio, HIL_CMD_RNM); | |
1437dc30 | 491 | error = wait_for_completion_killable(&dev->cmd_done); |
6777f017 DT |
492 | if (error) |
493 | goto bail1; | |
1da177e4 | 494 | |
1437dc30 | 495 | init_completion(&dev->cmd_done); |
dd0d5443 DT |
496 | serio_write(serio, 0); |
497 | serio_write(serio, 0); | |
498 | serio_write(serio, HIL_PKT_CMD >> 8); | |
499 | serio_write(serio, HIL_CMD_EXD); | |
1437dc30 | 500 | error = wait_for_completion_killable(&dev->cmd_done); |
6777f017 DT |
501 | if (error) |
502 | goto bail1; | |
1da177e4 | 503 | |
1437dc30 DT |
504 | did = dev->idd[0]; |
505 | idd = dev->idd + 1; | |
fa71c605 | 506 | |
1da177e4 LT |
507 | switch (did & HIL_IDD_DID_TYPE_MASK) { |
508 | case HIL_IDD_DID_TYPE_KB_INTEGRAL: | |
509 | case HIL_IDD_DID_TYPE_KB_ITF: | |
510 | case HIL_IDD_DID_TYPE_KB_RSVD: | |
511 | case HIL_IDD_DID_TYPE_CHAR: | |
fa71c605 DT |
512 | if (HIL_IDD_NUM_BUTTONS(idd) || |
513 | HIL_IDD_NUM_AXES_PER_SET(*idd)) { | |
514 | printk(KERN_INFO PREFIX | |
515 | "combo devices are not supported.\n"); | |
516 | goto bail1; | |
517 | } | |
518 | ||
519 | dev->is_pointer = false; | |
520 | hil_dev_keyboard_setup(dev); | |
1da177e4 | 521 | break; |
1da177e4 | 522 | |
fa71c605 DT |
523 | case HIL_IDD_DID_TYPE_REL: |
524 | case HIL_IDD_DID_TYPE_ABS: | |
525 | dev->is_pointer = true; | |
526 | hil_dev_pointer_setup(dev); | |
527 | break; | |
528 | ||
529 | default: | |
6777f017 | 530 | goto bail1; |
1da177e4 LT |
531 | } |
532 | ||
6777f017 DT |
533 | input_dev->id.bustype = BUS_HIL; |
534 | input_dev->id.vendor = PCI_VENDOR_ID_HP; | |
535 | input_dev->id.product = 0x0001; /* TODO: get from kbd->rsc */ | |
536 | input_dev->id.version = 0x0100; /* TODO: get from kbd->rsc */ | |
537 | input_dev->dev.parent = &serio->dev; | |
1da177e4 | 538 | |
fa71c605 DT |
539 | if (!dev->is_pointer) { |
540 | serio_write(serio, 0); | |
541 | serio_write(serio, 0); | |
542 | serio_write(serio, HIL_PKT_CMD >> 8); | |
543 | /* Enable Keyswitch Autorepeat 1 */ | |
544 | serio_write(serio, HIL_CMD_EK1); | |
545 | /* No need to wait for completion */ | |
1da177e4 | 546 | } |
6777f017 | 547 | |
1437dc30 | 548 | error = input_register_device(input_dev); |
6777f017 DT |
549 | if (error) |
550 | goto bail1; | |
1da177e4 | 551 | |
6ab0f5cd | 552 | return 0; |
6777f017 DT |
553 | |
554 | bail1: | |
1da177e4 | 555 | serio_close(serio); |
d668da80 | 556 | serio_set_drvdata(serio, NULL); |
1da177e4 | 557 | bail0: |
6777f017 | 558 | input_free_device(input_dev); |
1437dc30 | 559 | kfree(dev); |
6777f017 | 560 | return error; |
1da177e4 LT |
561 | } |
562 | ||
1437dc30 | 563 | static struct serio_device_id hil_dev_ids[] = { |
6ab0f5cd MW |
564 | { |
565 | .type = SERIO_HIL_MLC, | |
566 | .proto = SERIO_HIL, | |
567 | .id = SERIO_ANY, | |
568 | .extra = SERIO_ANY, | |
569 | }, | |
570 | { 0 } | |
571 | }; | |
1da177e4 | 572 | |
05e93a74 DK |
573 | MODULE_DEVICE_TABLE(serio, hil_dev_ids); |
574 | ||
1437dc30 | 575 | static struct serio_driver hil_serio_drv = { |
1da177e4 | 576 | .driver = { |
fa71c605 | 577 | .name = "hil_dev", |
1da177e4 | 578 | }, |
fa71c605 | 579 | .description = "HP HIL keyboard/mouse/tablet driver", |
1437dc30 DT |
580 | .id_table = hil_dev_ids, |
581 | .connect = hil_dev_connect, | |
582 | .disconnect = hil_dev_disconnect, | |
583 | .interrupt = hil_dev_interrupt | |
1da177e4 LT |
584 | }; |
585 | ||
1437dc30 | 586 | static int __init hil_dev_init(void) |
1da177e4 | 587 | { |
1437dc30 | 588 | return serio_register_driver(&hil_serio_drv); |
1da177e4 | 589 | } |
ffd51f46 | 590 | |
1437dc30 | 591 | static void __exit hil_dev_exit(void) |
1da177e4 | 592 | { |
1437dc30 | 593 | serio_unregister_driver(&hil_serio_drv); |
1da177e4 | 594 | } |
ffd51f46 | 595 | |
1437dc30 DT |
596 | module_init(hil_dev_init); |
597 | module_exit(hil_dev_exit); |