blob: 5b152f25a8e1ff72e613608f08876b3098627469 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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>
Dmitry Torokhov6777f012009-08-07 23:17:46 -070039#include <linux/completion.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070040#include <linux/slab.h>
41#include <linux/pci_ids.h>
42
Dmitry Torokhovfa71c602009-08-07 23:17:47 -070043#define PREFIX "HIL: "
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
45MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
Dmitry Torokhovfa71c602009-08-07 23:17:47 -070046MODULE_DESCRIPTION("HIL keyboard/mouse driver");
Linus Torvalds1da177e2005-04-16 15:20:36 -070047MODULE_LICENSE("Dual BSD/GPL");
Dmitry Torokhovfa71c602009-08-07 23:17:47 -070048MODULE_ALIAS("serio:ty03pr25id00ex*"); /* HIL keyboard */
49MODULE_ALIAS("serio:ty03pr25id0Fex*"); /* HIL mouse */
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
Dmitry Torokhov1437dc32009-08-07 23:17:47 -070051#define HIL_PACKET_MAX_LENGTH 16
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
53#define HIL_KBD_SET1_UPBIT 0x01
54#define HIL_KBD_SET1_SHIFT 1
Helge Deller3acaf542007-02-28 23:51:19 -050055static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 { HIL_KEYCODES_SET1 };
57
58#define HIL_KBD_SET2_UPBIT 0x01
59#define HIL_KBD_SET2_SHIFT 1
60/* Set2 is user defined */
61
62#define HIL_KBD_SET3_UPBIT 0x80
63#define HIL_KBD_SET3_SHIFT 0
Helge Deller3acaf542007-02-28 23:51:19 -050064static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] __read_mostly =
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 { HIL_KEYCODES_SET3 };
66
Helge Deller3acaf542007-02-28 23:51:19 -050067static const char hil_language[][16] = { HIL_LOCALE_MAP };
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
Dmitry Torokhov1437dc32009-08-07 23:17:47 -070069struct hil_dev {
Helge Deller102c8c72006-03-26 07:41:55 -070070 struct input_dev *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 struct serio *serio;
72
73 /* Input buffer and index for packets from HIL bus. */
Dmitry Torokhov1437dc32009-08-07 23:17:47 -070074 hil_packet data[HIL_PACKET_MAX_LENGTH];
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 int idx4; /* four counts per packet */
76
77 /* Raw device info records from HIL bus, see hil.h for fields. */
Dmitry Torokhov1437dc32009-08-07 23:17:47 -070078 char idd[HIL_PACKET_MAX_LENGTH]; /* DID byte and IDD record */
79 char rsc[HIL_PACKET_MAX_LENGTH]; /* RSC record */
80 char exd[HIL_PACKET_MAX_LENGTH]; /* EXD record */
81 char rnm[HIL_PACKET_MAX_LENGTH + 1]; /* RNM record + NULL term. */
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
Dmitry Torokhov6777f012009-08-07 23:17:46 -070083 struct completion cmd_done;
Dmitry Torokhovfa71c602009-08-07 23:17:47 -070084
85 bool is_pointer;
86 /* Extra device details needed for pointing devices. */
87 unsigned int nbtn, naxes;
88 unsigned int btnmap[7];
Linus Torvalds1da177e2005-04-16 15:20:36 -070089};
90
Dmitry Torokhov1437dc32009-08-07 23:17:47 -070091static bool hil_dev_is_command_response(hil_packet p)
Linus Torvalds1da177e2005-04-16 15:20:36 -070092{
Dmitry Torokhov6777f012009-08-07 23:17:46 -070093 if ((p & ~HIL_CMDCT_POL) == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
94 return false;
95
96 if ((p & ~HIL_CMDCT_RPL) == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL))
97 return false;
98
99 return true;
100}
101
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700102static void hil_dev_handle_command_response(struct hil_dev *dev)
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700103{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104 hil_packet p;
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700105 char *buf;
106 int i, idx;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700108 idx = dev->idx4 / 4;
109 p = dev->data[idx - 1];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 switch (p & HIL_PKT_DATA_MASK) {
112 case HIL_CMD_IDD:
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700113 buf = dev->idd;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 break;
Helge Dellerffd51f42007-02-28 23:51:29 -0500115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 case HIL_CMD_RSC:
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700117 buf = dev->rsc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 break;
Helge Dellerffd51f42007-02-28 23:51:29 -0500119
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 case HIL_CMD_EXD:
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700121 buf = dev->exd;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122 break;
Helge Dellerffd51f42007-02-28 23:51:29 -0500123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 case HIL_CMD_RNM:
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700125 dev->rnm[HIL_PACKET_MAX_LENGTH] = 0;
126 buf = dev->rnm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127 break;
Helge Dellerffd51f42007-02-28 23:51:29 -0500128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 default:
130 /* These occur when device isn't present */
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700131 if (p != (HIL_ERR_INT | HIL_PKT_CMD)) {
132 /* Anything else we'd like to know about. */
133 printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
134 }
135 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700138 for (i = 0; i < idx; i++)
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700139 buf[i] = dev->data[i] & HIL_PKT_DATA_MASK;
140 for (; i < HIL_PACKET_MAX_LENGTH; i++)
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700141 buf[i] = 0;
142 out:
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700143 complete(&dev->cmd_done);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700144}
145
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700146static void hil_dev_handle_kbd_events(struct hil_dev *kbd)
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700147{
148 struct input_dev *dev = kbd->dev;
149 int idx = kbd->idx4 / 4;
150 int i;
151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152 switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) {
153 case HIL_POL_CHARTYPE_NONE:
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700154 return;
Helge Dellerffd51f42007-02-28 23:51:29 -0500155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 case HIL_POL_CHARTYPE_ASCII:
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700157 for (i = 1; i < idx - 1; i++)
158 input_report_key(dev, kbd->data[i] & 0x7f, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 break;
Helge Dellerffd51f42007-02-28 23:51:29 -0500160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161 case HIL_POL_CHARTYPE_RSVD1:
162 case HIL_POL_CHARTYPE_RSVD2:
163 case HIL_POL_CHARTYPE_BINARY:
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700164 for (i = 1; i < idx - 1; i++)
165 input_report_key(dev, kbd->data[i], 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 break;
Helge Dellerffd51f42007-02-28 23:51:29 -0500167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 case HIL_POL_CHARTYPE_SET1:
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700169 for (i = 1; i < idx - 1; i++) {
170 unsigned int key = kbd->data[i];
171 int up = key & HIL_KBD_SET1_UPBIT;
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173 key &= (~HIL_KBD_SET1_UPBIT & 0xff);
174 key = hil_kbd_set1[key >> HIL_KBD_SET1_SHIFT];
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700175 input_report_key(dev, key, !up);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176 }
177 break;
Helge Dellerffd51f42007-02-28 23:51:29 -0500178
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 case HIL_POL_CHARTYPE_SET2:
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700180 for (i = 1; i < idx - 1; i++) {
181 unsigned int key = kbd->data[i];
182 int up = key & HIL_KBD_SET2_UPBIT;
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 key &= (~HIL_KBD_SET1_UPBIT & 0xff);
185 key = key >> HIL_KBD_SET2_SHIFT;
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700186 input_report_key(dev, key, !up);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 }
188 break;
Helge Dellerffd51f42007-02-28 23:51:29 -0500189
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190 case HIL_POL_CHARTYPE_SET3:
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700191 for (i = 1; i < idx - 1; i++) {
192 unsigned int key = kbd->data[i];
193 int up = key & HIL_KBD_SET3_UPBIT;
194
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 key &= (~HIL_KBD_SET1_UPBIT & 0xff);
196 key = hil_kbd_set3[key >> HIL_KBD_SET3_SHIFT];
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700197 input_report_key(dev, key, !up);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 }
199 break;
200 }
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700201
202 input_sync(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203}
204
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700205static void hil_dev_handle_ptr_events(struct hil_dev *ptr)
206{
207 struct input_dev *dev = ptr->dev;
208 int idx = ptr->idx4 / 4;
209 hil_packet p = ptr->data[idx - 1];
210 int i, cnt, laxis;
211 bool absdev, ax16;
212
213 if ((p & HIL_CMDCT_POL) != idx - 1) {
214 printk(KERN_WARNING PREFIX
215 "Malformed poll packet %x (idx = %i)\n", p, idx);
216 return;
217 }
218
219 i = (p & HIL_POL_AXIS_ALT) ? 3 : 0;
220 laxis = (p & HIL_POL_NUM_AXES_MASK) + i;
221
222 ax16 = ptr->idd[1] & HIL_IDD_HEADER_16BIT; /* 8 or 16bit resolution */
223 absdev = ptr->idd[1] & HIL_IDD_HEADER_ABS;
224
225 for (cnt = 1; i < laxis; i++) {
226 unsigned int lo, hi, val;
227
228 lo = ptr->data[cnt++] & HIL_PKT_DATA_MASK;
229 hi = ax16 ? (ptr->data[cnt++] & HIL_PKT_DATA_MASK) : 0;
230
231 if (absdev) {
232 val = lo + (hi << 8);
233#ifdef TABLET_AUTOADJUST
Dmitry Torokhov77edf0c2010-08-17 21:22:13 -0700234 if (val < input_abs_get_min(dev, ABS_X + i))
Daniel Mack987a6c02010-08-02 20:15:17 -0700235 input_abs_set_min(dev, ABS_X + i, val);
Dmitry Torokhov77edf0c2010-08-17 21:22:13 -0700236 if (val > input_abs_get_max(dev, ABS_X + i))
Daniel Mackb84ae4a2010-08-12 09:22:18 -0700237 input_abs_set_max(dev, ABS_X + i, val);
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700238#endif
Daniel Mack987a6c02010-08-02 20:15:17 -0700239 if (i % 3)
Dmitry Torokhov77edf0c2010-08-17 21:22:13 -0700240 val = input_abs_get_max(dev, ABS_X + i) - val;
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700241 input_report_abs(dev, ABS_X + i, val);
242 } else {
Daniel Mack987a6c02010-08-02 20:15:17 -0700243 val = (int) (((int8_t) lo) | ((int8_t) hi << 8));
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700244 if (i % 3)
245 val *= -1;
246 input_report_rel(dev, REL_X + i, val);
247 }
248 }
249
250 while (cnt < idx - 1) {
251 unsigned int btn = ptr->data[cnt++];
252 int up = btn & 1;
253
254 btn &= 0xfe;
255 if (btn == 0x8e)
256 continue; /* TODO: proximity == touch? */
257 if (btn > 0x8c || btn < 0x80)
258 continue;
259 btn = (btn - 0x80) >> 1;
260 btn = ptr->btnmap[btn];
261 input_report_key(dev, btn, !up);
262 }
263
264 input_sync(dev);
265}
266
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700267static void hil_dev_process_err(struct hil_dev *dev)
Helge Dellerffd51f42007-02-28 23:51:29 -0500268{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 printk(KERN_WARNING PREFIX "errored HIL packet\n");
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700270 dev->idx4 = 0;
271 complete(&dev->cmd_done); /* just in case somebody is waiting */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272}
273
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700274static irqreturn_t hil_dev_interrupt(struct serio *serio,
Helge Dellerffd51f42007-02-28 23:51:29 -0500275 unsigned char data, unsigned int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276{
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700277 struct hil_dev *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 hil_packet packet;
279 int idx;
280
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700281 dev = serio_get_drvdata(serio);
282 BUG_ON(dev == NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700284 if (dev->idx4 >= HIL_PACKET_MAX_LENGTH * sizeof(hil_packet)) {
285 hil_dev_process_err(dev);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700286 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 }
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700288
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700289 idx = dev->idx4 / 4;
290 if (!(dev->idx4 % 4))
291 dev->data[idx] = 0;
292 packet = dev->data[idx];
293 packet |= ((hil_packet)data) << ((3 - (dev->idx4 % 4)) * 8);
294 dev->data[idx] = packet;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
296 /* Records of N 4-byte hil_packets must terminate with a command. */
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700297 if ((++dev->idx4 % 4) == 0) {
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700298 if ((packet & 0xffff0000) != HIL_ERR_INT) {
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700299 hil_dev_process_err(dev);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700300 } else if (packet & HIL_PKT_CMD) {
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700301 if (hil_dev_is_command_response(packet))
302 hil_dev_handle_command_response(dev);
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700303 else if (dev->is_pointer)
304 hil_dev_handle_ptr_events(dev);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700305 else
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700306 hil_dev_handle_kbd_events(dev);
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700307 dev->idx4 = 0;
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700308 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 }
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700310 out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 return IRQ_HANDLED;
312}
313
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700314static void hil_dev_disconnect(struct serio *serio)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315{
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700316 struct hil_dev *dev = serio_get_drvdata(serio);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700318 BUG_ON(dev == NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 serio_close(serio);
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700321 input_unregister_device(dev->dev);
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700322 serio_set_drvdata(serio, NULL);
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700323 kfree(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324}
325
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700326static void hil_dev_keyboard_setup(struct hil_dev *kbd)
327{
328 struct input_dev *input_dev = kbd->dev;
329 uint8_t did = kbd->idd[0];
330 int i;
331
332 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
333 input_dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
334 BIT_MASK(LED_SCROLLL);
335
336 for (i = 0; i < 128; i++) {
337 __set_bit(hil_kbd_set1[i], input_dev->keybit);
338 __set_bit(hil_kbd_set3[i], input_dev->keybit);
339 }
340 __clear_bit(KEY_RESERVED, input_dev->keybit);
341
342 input_dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
343 input_dev->keycodesize = sizeof(hil_kbd_set1[0]);
344 input_dev->keycode = hil_kbd_set1;
345
346 input_dev->name = strlen(kbd->rnm) ? kbd->rnm : "HIL keyboard";
347 input_dev->phys = "hpkbd/input0";
348
349 printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n",
350 did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
351}
352
353static void hil_dev_pointer_setup(struct hil_dev *ptr)
354{
355 struct input_dev *input_dev = ptr->dev;
356 uint8_t did = ptr->idd[0];
357 uint8_t *idd = ptr->idd + 1;
358 unsigned int naxsets = HIL_IDD_NUM_AXSETS(*idd);
359 unsigned int i, btntype;
360 const char *txt;
361
362 ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
363
364 switch (did & HIL_IDD_DID_TYPE_MASK) {
365 case HIL_IDD_DID_TYPE_REL:
366 input_dev->evbit[0] = BIT_MASK(EV_REL);
367
368 for (i = 0; i < ptr->naxes; i++)
369 __set_bit(REL_X + i, input_dev->relbit);
370
371 for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
372 __set_bit(REL_X + i, input_dev->relbit);
373
374 txt = "relative";
375 break;
376
377 case HIL_IDD_DID_TYPE_ABS:
378 input_dev->evbit[0] = BIT_MASK(EV_ABS);
379
380 for (i = 0; i < ptr->naxes; i++)
381 input_set_abs_params(input_dev, ABS_X + i,
382 0, HIL_IDD_AXIS_MAX(idd, i), 0, 0);
383
384 for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
385 input_set_abs_params(input_dev, ABS_X + i,
386 0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0);
387
388#ifdef TABLET_AUTOADJUST
389 for (i = 0; i < ABS_MAX; i++) {
Dmitry Torokhov77edf0c2010-08-17 21:22:13 -0700390 int diff = input_abs_get_max(input_dev, ABS_X + i) / 10;
Daniel Mack987a6c02010-08-02 20:15:17 -0700391 input_abs_set_min(input_dev, ABS_X + i,
Dmitry Torokhov77edf0c2010-08-17 21:22:13 -0700392 input_abs_get_min(input_dev, ABS_X + i) + diff);
Daniel Mackb84ae4a2010-08-12 09:22:18 -0700393 input_abs_set_max(input_dev, ABS_X + i,
Dmitry Torokhov77edf0c2010-08-17 21:22:13 -0700394 input_abs_get_max(input_dev, ABS_X + i) - diff);
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700395 }
396#endif
397
398 txt = "absolute";
399 break;
400
401 default:
402 BUG();
403 }
404
405 ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
406 if (ptr->nbtn)
407 input_dev->evbit[0] |= BIT_MASK(EV_KEY);
408
409 btntype = BTN_MISC;
410 if ((did & HIL_IDD_DID_ABS_TABLET_MASK) == HIL_IDD_DID_ABS_TABLET)
411#ifdef TABLET_SIMULATES_MOUSE
412 btntype = BTN_TOUCH;
413#else
414 btntype = BTN_DIGI;
415#endif
416 if ((did & HIL_IDD_DID_ABS_TSCREEN_MASK) == HIL_IDD_DID_ABS_TSCREEN)
417 btntype = BTN_TOUCH;
418
419 if ((did & HIL_IDD_DID_REL_MOUSE_MASK) == HIL_IDD_DID_REL_MOUSE)
420 btntype = BTN_MOUSE;
421
422 for (i = 0; i < ptr->nbtn; i++) {
423 __set_bit(btntype | i, input_dev->keybit);
424 ptr->btnmap[i] = btntype | i;
425 }
426
427 if (btntype == BTN_MOUSE) {
428 /* Swap buttons 2 and 3 */
429 ptr->btnmap[1] = BTN_MIDDLE;
430 ptr->btnmap[2] = BTN_RIGHT;
431 }
432
433 input_dev->name = strlen(ptr->rnm) ? ptr->rnm : "HIL pointer device";
434
435 printk(KERN_INFO PREFIX
436 "HIL pointer device found (did: 0x%02x, axis: %s)\n",
437 did, txt);
438 printk(KERN_INFO PREFIX
439 "HIL pointer has %i buttons and %i sets of %i axes\n",
440 ptr->nbtn, naxsets, ptr->naxes);
441}
442
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700443static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444{
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700445 struct hil_dev *dev;
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700446 struct input_dev *input_dev;
447 uint8_t did, *idd;
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700448 int error;
Dmitry Torokhov95d465f2006-04-02 00:08:05 -0500449
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700450 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700451 input_dev = input_allocate_device();
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700452 if (!dev || !input_dev) {
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700453 error = -ENOMEM;
454 goto bail0;
455 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700457 dev->serio = serio;
458 dev->dev = input_dev;
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700459
460 error = serio_open(serio, drv);
461 if (error)
Dmitry Torokhov95d465f2006-04-02 00:08:05 -0500462 goto bail0;
463
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700464 serio_set_drvdata(serio, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465
466 /* Get device info. MLC driver supplies devid/status/etc. */
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700467 init_completion(&dev->cmd_done);
Dmitry Torokhovdd0d5442009-08-05 00:30:26 -0700468 serio_write(serio, 0);
469 serio_write(serio, 0);
470 serio_write(serio, HIL_PKT_CMD >> 8);
471 serio_write(serio, HIL_CMD_IDD);
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700472 error = wait_for_completion_killable(&dev->cmd_done);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700473 if (error)
474 goto bail1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475
Nicholas Mc Guirecceeb872014-12-26 15:41:42 -0800476 reinit_completion(&dev->cmd_done);
Dmitry Torokhovdd0d5442009-08-05 00:30:26 -0700477 serio_write(serio, 0);
478 serio_write(serio, 0);
479 serio_write(serio, HIL_PKT_CMD >> 8);
480 serio_write(serio, HIL_CMD_RSC);
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700481 error = wait_for_completion_killable(&dev->cmd_done);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700482 if (error)
483 goto bail1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484
Nicholas Mc Guirecceeb872014-12-26 15:41:42 -0800485 reinit_completion(&dev->cmd_done);
Dmitry Torokhovdd0d5442009-08-05 00:30:26 -0700486 serio_write(serio, 0);
487 serio_write(serio, 0);
488 serio_write(serio, HIL_PKT_CMD >> 8);
489 serio_write(serio, HIL_CMD_RNM);
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700490 error = wait_for_completion_killable(&dev->cmd_done);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700491 if (error)
492 goto bail1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493
Nicholas Mc Guirecceeb872014-12-26 15:41:42 -0800494 reinit_completion(&dev->cmd_done);
Dmitry Torokhovdd0d5442009-08-05 00:30:26 -0700495 serio_write(serio, 0);
496 serio_write(serio, 0);
497 serio_write(serio, HIL_PKT_CMD >> 8);
498 serio_write(serio, HIL_CMD_EXD);
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700499 error = wait_for_completion_killable(&dev->cmd_done);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700500 if (error)
501 goto bail1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700503 did = dev->idd[0];
504 idd = dev->idd + 1;
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700505
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 switch (did & HIL_IDD_DID_TYPE_MASK) {
507 case HIL_IDD_DID_TYPE_KB_INTEGRAL:
508 case HIL_IDD_DID_TYPE_KB_ITF:
509 case HIL_IDD_DID_TYPE_KB_RSVD:
510 case HIL_IDD_DID_TYPE_CHAR:
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700511 if (HIL_IDD_NUM_BUTTONS(idd) ||
512 HIL_IDD_NUM_AXES_PER_SET(*idd)) {
513 printk(KERN_INFO PREFIX
514 "combo devices are not supported.\n");
515 goto bail1;
516 }
517
518 dev->is_pointer = false;
519 hil_dev_keyboard_setup(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520 break;
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700521
522 case HIL_IDD_DID_TYPE_REL:
523 case HIL_IDD_DID_TYPE_ABS:
524 dev->is_pointer = true;
525 hil_dev_pointer_setup(dev);
526 break;
527
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528 default:
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700529 goto bail1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530 }
531
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700532 input_dev->id.bustype = BUS_HIL;
533 input_dev->id.vendor = PCI_VENDOR_ID_HP;
534 input_dev->id.product = 0x0001; /* TODO: get from kbd->rsc */
535 input_dev->id.version = 0x0100; /* TODO: get from kbd->rsc */
536 input_dev->dev.parent = &serio->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700538 if (!dev->is_pointer) {
539 serio_write(serio, 0);
540 serio_write(serio, 0);
541 serio_write(serio, HIL_PKT_CMD >> 8);
542 /* Enable Keyswitch Autorepeat 1 */
543 serio_write(serio, HIL_CMD_EK1);
544 /* No need to wait for completion */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545 }
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700546
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700547 error = input_register_device(input_dev);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700548 if (error)
549 goto bail1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550
Matthew Wilcox6ab0f5c2005-10-21 22:58:51 -0400551 return 0;
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700552
553 bail1:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554 serio_close(serio);
Matthew Wilcoxd668da82006-04-03 13:44:17 +0000555 serio_set_drvdata(serio, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556 bail0:
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700557 input_free_device(input_dev);
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700558 kfree(dev);
Dmitry Torokhov6777f012009-08-07 23:17:46 -0700559 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560}
561
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700562static struct serio_device_id hil_dev_ids[] = {
Matthew Wilcox6ab0f5c2005-10-21 22:58:51 -0400563 {
564 .type = SERIO_HIL_MLC,
565 .proto = SERIO_HIL,
566 .id = SERIO_ANY,
567 .extra = SERIO_ANY,
568 },
569 { 0 }
570};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571
Dzianis Kahanovich05e93a72010-09-29 18:38:10 -0700572MODULE_DEVICE_TABLE(serio, hil_dev_ids);
573
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700574static struct serio_driver hil_serio_drv = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 .driver = {
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700576 .name = "hil_dev",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 },
Dmitry Torokhovfa71c602009-08-07 23:17:47 -0700578 .description = "HP HIL keyboard/mouse/tablet driver",
Dmitry Torokhov1437dc32009-08-07 23:17:47 -0700579 .id_table = hil_dev_ids,
580 .connect = hil_dev_connect,
581 .disconnect = hil_dev_disconnect,
582 .interrupt = hil_dev_interrupt
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583};
584
Axel Lin65ac9f72012-04-03 23:50:17 -0700585module_serio_driver(hil_serio_drv);