blob: 672935f7aeba5ef3c9fe3d594043e1e3128fee56 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 *
3 * keyboard input driver for i2c IR remote controls
4 *
5 * Copyright (c) 2000-2003 Gerd Knorr <kraxel@bytesex.org>
6 * modified for PixelView (BT878P+W/FM) by
7 * Michal Kochanowicz <mkochano@pld.org.pl>
8 * Christoph Bartelmus <lirc@bartelmus.de>
9 * modified for KNC ONE TV Station/Anubis Typhoon TView Tuner by
10 * Ulrich Mueller <ulrich.mueller42@web.de>
Markus Rechbergerc3658642005-11-08 21:37:21 -080011 * modified for em2820 based USB TV tuners by
12 * Markus Rechberger <mrechberger@gmail.com>
Chaogui Zhangd54d6982007-08-24 01:02:32 -030013 * modified for DViCO Fusion HDTV 5 RT GOLD by
14 * Chaogui Zhang <czhang1974@gmail.com>
Brian Rogersba340b42008-10-13 08:37:06 -030015 * modified for MSI TV@nywhere Plus by
16 * Henry Wong <henry@stuffedcow.net>
17 * Mark Schultz <n9xmj@yahoo.com>
18 * Brian Rogers <brian_rogers@comcast.net>
Oldřich Jedličkacb3bf502009-02-12 03:43:11 -030019 * modified for AVerMedia Cardbus by
20 * Oldrich Jedlicka <oldium.pro@seznam.cz>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 *
22 * This program is free software; you can redistribute it and/or modify
23 * it under the terms of the GNU General Public License as published by
24 * the Free Software Foundation; either version 2 of the License, or
25 * (at your option) any later version.
26 *
27 * This program is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
31 *
32 * You should have received a copy of the GNU General Public License
33 * along with this program; if not, write to the Free Software
34 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
35 *
36 */
37
38#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070039#include <linux/init.h>
40#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#include <linux/string.h>
42#include <linux/timer.h>
43#include <linux/delay.h>
44#include <linux/errno.h>
45#include <linux/slab.h>
46#include <linux/i2c.h>
47#include <linux/workqueue.h>
Mauro Carvalho Chehab674434c2005-12-12 00:37:28 -080048
Mauro Carvalho Chehab6bda9642010-11-17 13:28:38 -030049#include <media/rc-core.h>
Mauro Carvalho Chehabd5e52652005-11-08 21:37:32 -080050#include <media/ir-kbd-i2c.h>
Markus Rechbergerc3658642005-11-08 21:37:21 -080051
Linus Torvalds1da177e2005-04-16 15:20:36 -070052/* ----------------------------------------------------------------------- */
53/* insmod parameters */
54
55static int debug;
56module_param(debug, int, 0644); /* debug level (0,1,2) */
57
J.O. Ahobf47e4e2006-01-23 09:34:06 -020058
Mauro Carvalho Chehab727e6252010-03-12 21:18:14 -030059#define MODULE_NAME "ir-kbd-i2c"
Linus Torvalds1da177e2005-04-16 15:20:36 -070060#define dprintk(level, fmt, arg...) if (debug >= level) \
Mauro Carvalho Chehab727e6252010-03-12 21:18:14 -030061 printk(KERN_DEBUG MODULE_NAME ": " fmt , ## arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
63/* ----------------------------------------------------------------------- */
64
Jan Frey39cf1e82007-06-25 14:34:06 -030065static int get_key_haup_common(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
66 int size, int offset)
Linus Torvalds1da177e2005-04-16 15:20:36 -070067{
Jan Frey39cf1e82007-06-25 14:34:06 -030068 unsigned char buf[6];
Darron Broad34c08022008-09-22 00:54:59 -030069 int start, range, toggle, dev, code, ircode;
Linus Torvalds1da177e2005-04-16 15:20:36 -070070
71 /* poll IR chip */
Jean Delvarec668f322009-05-13 16:48:50 -030072 if (size != i2c_master_recv(ir->c, buf, size))
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 return -EIO;
74
75 /* split rc5 data block ... */
Jan Frey39cf1e82007-06-25 14:34:06 -030076 start = (buf[offset] >> 7) & 1;
77 range = (buf[offset] >> 6) & 1;
78 toggle = (buf[offset] >> 5) & 1;
79 dev = buf[offset] & 0x1f;
80 code = (buf[offset+1] >> 2) & 0x3f;
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
David Hardemancc7093d2006-09-26 16:39:00 -030082 /* rc5 has two start bits
83 * the first bit must be one
84 * the second bit defines the command range (1 = 0-63, 0 = 64 - 127)
85 */
86 if (!start)
Linus Torvalds1da177e2005-04-16 15:20:36 -070087 /* no key pressed */
88 return 0;
Darron Broad34c08022008-09-22 00:54:59 -030089 /*
90 * Hauppauge remotes (black/silver) always use
91 * specific device ids. If we do not filter the
92 * device ids then messages destined for devices
93 * such as TVs (id=0) will get through causing
94 * mis-fired events.
95 *
96 * We also filter out invalid key presses which
97 * produce annoying debug log entries.
98 */
99 ircode= (start << 12) | (toggle << 11) | (dev << 6) | code;
100 if ((ircode & 0x1fff)==0x1fff)
101 /* invalid key press */
102 return 0;
103
David Hardemancc7093d2006-09-26 16:39:00 -0300104 if (!range)
105 code += 64;
106
107 dprintk(1,"ir hauppauge (rc5): s%d r%d t%d dev=%d code=%d\n",
108 start, range, toggle, dev, code);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109
110 /* return key */
111 *ir_key = code;
Darron Broad34c08022008-09-22 00:54:59 -0300112 *ir_raw = ircode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 return 1;
114}
115
Jean Delvare157da272009-07-28 11:41:35 -0300116static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
Jan Frey39cf1e82007-06-25 14:34:06 -0300117{
118 return get_key_haup_common (ir, ir_key, ir_raw, 3, 0);
119}
120
Jean Delvare157da272009-07-28 11:41:35 -0300121static int get_key_haup_xvr(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
Jan Frey39cf1e82007-06-25 14:34:06 -0300122{
Jarod Wilson8df59912011-01-20 18:31:18 -0300123 int ret;
124 unsigned char buf[1] = { 0 };
125
126 /*
127 * This is the same apparent "are you ready?" poll command observed
128 * watching Windows driver traffic and implemented in lirc_zilog. With
129 * this added, we get far saner remote behavior with z8 chips on usb
130 * connected devices, even with the default polling interval of 100ms.
131 */
132 ret = i2c_master_send(ir->c, buf, 1);
133 if (ret != 1)
134 return (ret < 0) ? ret : -EINVAL;
135
Jan Frey39cf1e82007-06-25 14:34:06 -0300136 return get_key_haup_common (ir, ir_key, ir_raw, 6, 3);
137}
138
Mauro Carvalho Chehabd5e52652005-11-08 21:37:32 -0800139static int get_key_pixelview(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140{
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800141 unsigned char b;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
143 /* poll IR chip */
Jean Delvarec668f322009-05-13 16:48:50 -0300144 if (1 != i2c_master_recv(ir->c, &b, 1)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 dprintk(1,"read error\n");
146 return -EIO;
147 }
148 *ir_key = b;
149 *ir_raw = b;
150 return 1;
151}
152
Michael Krufky3c443582007-08-24 01:07:12 -0300153static int get_key_fusionhdtv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
Chaogui Zhangd54d6982007-08-24 01:02:32 -0300154{
155 unsigned char buf[4];
156
157 /* poll IR chip */
Jean Delvarec668f322009-05-13 16:48:50 -0300158 if (4 != i2c_master_recv(ir->c, buf, 4)) {
Chaogui Zhangd54d6982007-08-24 01:02:32 -0300159 dprintk(1,"read error\n");
160 return -EIO;
161 }
162
163 if(buf[0] !=0 || buf[1] !=0 || buf[2] !=0 || buf[3] != 0)
Harvey Harrison7e28adb2008-04-08 23:20:00 -0300164 dprintk(2, "%s: 0x%2x 0x%2x 0x%2x 0x%2x\n", __func__,
Chaogui Zhangd54d6982007-08-24 01:02:32 -0300165 buf[0], buf[1], buf[2], buf[3]);
166
167 /* no key pressed or signal from other ir remote */
168 if(buf[0] != 0x1 || buf[1] != 0xfe)
169 return 0;
170
171 *ir_key = buf[2];
172 *ir_raw = (buf[2] << 8) | buf[3];
173
174 return 1;
Chaogui Zhangd54d6982007-08-24 01:02:32 -0300175}
176
Mauro Carvalho Chehabd5e52652005-11-08 21:37:32 -0800177static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178{
179 unsigned char b;
180
181 /* poll IR chip */
Jean Delvarec668f322009-05-13 16:48:50 -0300182 if (1 != i2c_master_recv(ir->c, &b, 1)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 dprintk(1,"read error\n");
184 return -EIO;
185 }
186
187 /* it seems that 0xFE indicates that a button is still hold
Mauro Carvalho Chehab4f9c05a2005-11-08 21:37:36 -0800188 down, while 0xff indicates that no button is hold
189 down. 0xfe sequences are sometimes interrupted by 0xFF */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190
191 dprintk(2,"key %02x\n", b);
192
Mauro Carvalho Chehab4f9c05a2005-11-08 21:37:36 -0800193 if (b == 0xff)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 return 0;
195
Mauro Carvalho Chehab4f9c05a2005-11-08 21:37:36 -0800196 if (b == 0xfe)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 /* keep old data */
198 return 1;
199
200 *ir_key = b;
201 *ir_raw = b;
202 return 1;
203}
204
Oldřich Jedličkacb3bf502009-02-12 03:43:11 -0300205static int get_key_avermedia_cardbus(struct IR_i2c *ir,
206 u32 *ir_key, u32 *ir_raw)
207{
208 unsigned char subaddr, key, keygroup;
Jean Delvarec668f322009-05-13 16:48:50 -0300209 struct i2c_msg msg[] = { { .addr = ir->c->addr, .flags = 0,
Oldřich Jedličkacb3bf502009-02-12 03:43:11 -0300210 .buf = &subaddr, .len = 1},
Jean Delvarec668f322009-05-13 16:48:50 -0300211 { .addr = ir->c->addr, .flags = I2C_M_RD,
Oldřich Jedličkacb3bf502009-02-12 03:43:11 -0300212 .buf = &key, .len = 1} };
213 subaddr = 0x0d;
Jean Delvarec668f322009-05-13 16:48:50 -0300214 if (2 != i2c_transfer(ir->c->adapter, msg, 2)) {
Oldřich Jedličkacb3bf502009-02-12 03:43:11 -0300215 dprintk(1, "read error\n");
216 return -EIO;
217 }
218
219 if (key == 0xff)
220 return 0;
221
222 subaddr = 0x0b;
223 msg[1].buf = &keygroup;
Jean Delvarec668f322009-05-13 16:48:50 -0300224 if (2 != i2c_transfer(ir->c->adapter, msg, 2)) {
Oldřich Jedličkacb3bf502009-02-12 03:43:11 -0300225 dprintk(1, "read error\n");
226 return -EIO;
227 }
228
229 if (keygroup == 0xff)
230 return 0;
231
232 dprintk(1, "read key 0x%02x/0x%02x\n", key, keygroup);
233 if (keygroup < 2 || keygroup > 3) {
234 /* Only a warning */
235 dprintk(1, "warning: invalid key group 0x%02x for key 0x%02x\n",
236 keygroup, key);
237 }
238 key |= (keygroup & 1) << 6;
239
240 *ir_key = key;
241 *ir_raw = key;
242 return 1;
243}
244
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245/* ----------------------------------------------------------------------- */
246
Mauro Carvalho Chehabd5e52652005-11-08 21:37:32 -0800247static void ir_key_poll(struct IR_i2c *ir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248{
249 static u32 ir_key, ir_raw;
250 int rc;
251
Mauro Carvalho Chehabe6bcb2f2011-01-12 13:50:01 -0300252 dprintk(3, "%s\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 rc = ir->get_key(ir, &ir_key, &ir_raw);
254 if (rc < 0) {
255 dprintk(2,"error\n");
256 return;
257 }
258
Mauro Carvalho Chehabe6bcb2f2011-01-12 13:50:01 -0300259 if (rc) {
260 dprintk(1, "%s: keycode = 0x%04x\n", __func__, ir_key);
Mauro Carvalho Chehabca866742010-11-17 13:53:11 -0300261 rc_keydown(ir->rc, ir_key, 0);
Mauro Carvalho Chehabe6bcb2f2011-01-12 13:50:01 -0300262 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263}
264
David Howellsc4028952006-11-22 14:57:56 +0000265static void ir_work(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266{
Jean Delvarec1089bd2009-03-07 07:43:43 -0300267 struct IR_i2c *ir = container_of(work, struct IR_i2c, work.work);
Dmitry Torokhov8083c522007-05-21 11:51:11 -0300268
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 ir_key_poll(ir);
Mauro Carvalho Chehabc72ba8e2010-09-23 01:23:10 -0300270 schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling_interval));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271}
272
273/* ----------------------------------------------------------------------- */
274
Jean Delvarec668f322009-05-13 16:48:50 -0300275static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276{
Mauro Carvalho Chehab02858ee2010-04-02 20:01:00 -0300277 char *ir_codes = NULL;
Jean Delvare9a4cc5a2009-05-13 16:50:11 -0300278 const char *name = NULL;
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300279 u64 rc_type = RC_TYPE_UNKNOWN;
Mauro Carvalho Chehabafd1a0c2005-12-12 00:37:27 -0800280 struct IR_i2c *ir;
Mauro Carvalho Chehab2eb25832010-11-12 09:02:40 -0300281 struct rc_dev *rc = NULL;
Jean Delvarec668f322009-05-13 16:48:50 -0300282 struct i2c_adapter *adap = client->adapter;
283 unsigned short addr = client->addr;
Dmitry Torokhovb07b4782006-11-20 10:23:04 -0300284 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285
Mauro Carvalho Chehab2eb25832010-11-12 09:02:40 -0300286 ir = kzalloc(sizeof(struct IR_i2c), GFP_KERNEL);
287 if (!ir)
288 return -ENOMEM;
Dmitry Torokhovb7df3912005-09-15 02:01:53 -0500289
Jean Delvarec668f322009-05-13 16:48:50 -0300290 ir->c = client;
Mauro Carvalho Chehabc72ba8e2010-09-23 01:23:10 -0300291 ir->polling_interval = DEFAULT_POLLING_INTERVAL;
Jean Delvarec668f322009-05-13 16:48:50 -0300292 i2c_set_clientdata(client, ir);
Mauro Carvalho Chehabd21838d2006-01-09 15:25:21 -0200293
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 switch(addr) {
295 case 0x64:
296 name = "Pixelview";
297 ir->get_key = get_key_pixelview;
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300298 rc_type = RC_TYPE_OTHER;
Mauro Carvalho Chehab02858ee2010-04-02 20:01:00 -0300299 ir_codes = RC_MAP_EMPTY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 case 0x18:
Magnus Almca39d842009-11-13 05:48:24 -0300302 case 0x1f:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 case 0x1a:
304 name = "Hauppauge";
305 ir->get_key = get_key_haup;
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300306 rc_type = RC_TYPE_RC5;
Mauro Carvalho Chehab20624102011-01-24 22:23:08 -0300307 ir_codes = RC_MAP_HAUPPAUGE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 break;
309 case 0x30:
Mauro Carvalho Chehabd5e52652005-11-08 21:37:32 -0800310 name = "KNC One";
311 ir->get_key = get_key_knc1;
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300312 rc_type = RC_TYPE_OTHER;
Mauro Carvalho Chehab02858ee2010-04-02 20:01:00 -0300313 ir_codes = RC_MAP_EMPTY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 break;
Chaogui Zhangd54d6982007-08-24 01:02:32 -0300315 case 0x6b:
Michael Krufky3c443582007-08-24 01:07:12 -0300316 name = "FusionHDTV";
317 ir->get_key = get_key_fusionhdtv;
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300318 rc_type = RC_TYPE_RC5;
Mauro Carvalho Chehab02858ee2010-04-02 20:01:00 -0300319 ir_codes = RC_MAP_FUSIONHDTV_MCE;
Chaogui Zhangd54d6982007-08-24 01:02:32 -0300320 break;
Oldřich Jedličkacb3bf502009-02-12 03:43:11 -0300321 case 0x40:
322 name = "AVerMedia Cardbus remote";
323 ir->get_key = get_key_avermedia_cardbus;
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300324 rc_type = RC_TYPE_OTHER;
Mauro Carvalho Chehab02858ee2010-04-02 20:01:00 -0300325 ir_codes = RC_MAP_AVERMEDIA_CARDBUS;
Oldřich Jedličkacb3bf502009-02-12 03:43:11 -0300326 break;
Andy Wallsc69a4af2011-01-16 15:45:32 -0300327 case 0x71:
328 name = "Hauppauge/Zilog Z8";
329 ir->get_key = get_key_haup_xvr;
330 rc_type = RC_TYPE_RC5;
Mauro Carvalho Chehab20624102011-01-24 22:23:08 -0300331 ir_codes = RC_MAP_HAUPPAUGE;
Andy Wallsc69a4af2011-01-16 15:45:32 -0300332 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 }
334
Jean Delvare4d7a2d62009-05-13 16:49:32 -0300335 /* Let the caller override settings */
336 if (client->dev.platform_data) {
337 const struct IR_i2c_init_data *init_data =
338 client->dev.platform_data;
339
340 ir_codes = init_data->ir_codes;
Mauro Carvalho Chehab2eb25832010-11-12 09:02:40 -0300341 rc = init_data->rc_dev;
342
Jean Delvare4d7a2d62009-05-13 16:49:32 -0300343 name = init_data->name;
Andy Walls1b6e59e2009-07-28 11:44:05 -0300344 if (init_data->type)
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300345 rc_type = init_data->type;
Andy Walls1b6e59e2009-07-28 11:44:05 -0300346
Mauro Carvalho Chehabc72ba8e2010-09-23 01:23:10 -0300347 if (init_data->polling_interval)
348 ir->polling_interval = init_data->polling_interval;
349
Andy Walls1b6e59e2009-07-28 11:44:05 -0300350 switch (init_data->internal_get_key_func) {
351 case IR_KBD_GET_KEY_CUSTOM:
352 /* The bridge driver provided us its own function */
353 ir->get_key = init_data->get_key;
354 break;
355 case IR_KBD_GET_KEY_PIXELVIEW:
356 ir->get_key = get_key_pixelview;
357 break;
Andy Walls1b6e59e2009-07-28 11:44:05 -0300358 case IR_KBD_GET_KEY_HAUP:
359 ir->get_key = get_key_haup;
360 break;
361 case IR_KBD_GET_KEY_KNC1:
362 ir->get_key = get_key_knc1;
363 break;
364 case IR_KBD_GET_KEY_FUSIONHDTV:
365 ir->get_key = get_key_fusionhdtv;
366 break;
367 case IR_KBD_GET_KEY_HAUP_XVR:
368 ir->get_key = get_key_haup_xvr;
369 break;
370 case IR_KBD_GET_KEY_AVERMEDIA_CARDBUS:
371 ir->get_key = get_key_avermedia_cardbus;
372 break;
373 }
Jean Delvare4d7a2d62009-05-13 16:49:32 -0300374 }
375
Mauro Carvalho Chehab2eb25832010-11-12 09:02:40 -0300376 if (!rc) {
377 /*
378 * If platform_data doesn't specify rc_dev, initilize it
379 * internally
380 */
381 rc = rc_allocate_device();
382 if (!rc) {
383 err = -ENOMEM;
384 goto err_out_free;
385 }
386 }
387 ir->rc = rc;
388
Jean Delvare9a4cc5a2009-05-13 16:50:11 -0300389 /* Make sure we are all setup before going on */
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300390 if (!name || !ir->get_key || !rc_type || !ir_codes) {
Lukas Karasd995a182009-11-24 12:06:52 -0300391 dprintk(1, ": Unsupported device at address 0x%02x\n",
Jean Delvare9a4cc5a2009-05-13 16:50:11 -0300392 addr);
393 err = -ENODEV;
394 goto err_out_free;
395 }
396
Ricardo Cerqueiraac9cd972005-11-08 21:37:56 -0800397 /* Sets name */
Jean Delvare1df8e982009-05-13 16:48:07 -0300398 snprintf(ir->name, sizeof(ir->name), "i2c IR (%s)", name);
Dmitry Torokhovb07b4782006-11-20 10:23:04 -0300399 ir->ir_codes = ir_codes;
Mauro Carvalho Chehabd5e52652005-11-08 21:37:32 -0800400
Ricardo Cerqueiraac9cd972005-11-08 21:37:56 -0800401 snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0",
Jean Delvarec668f322009-05-13 16:48:50 -0300402 dev_name(&adap->dev),
403 dev_name(&client->dev));
Ricardo Cerqueiraac9cd972005-11-08 21:37:56 -0800404
Mauro Carvalho Chehab2eb25832010-11-12 09:02:40 -0300405 /*
406 * Initialize input_dev fields
407 * It doesn't make sense to allow overriding them via platform_data
408 */
David Härdemand8b4b582010-10-29 16:08:23 -0300409 rc->input_id.bustype = BUS_I2C;
David Härdemand8b4b582010-10-29 16:08:23 -0300410 rc->input_phys = ir->phys;
Mauro Carvalho Chehab2eb25832010-11-12 09:02:40 -0300411 rc->input_name = ir->name;
412
413 /*
414 * Initialize the other fields of rc_dev
415 */
416 rc->map_name = ir->ir_codes;
Mauro Carvalho Chehab52b66142010-11-17 14:20:52 -0300417 rc->allowed_protos = rc_type;
Mauro Carvalho Chehab2eb25832010-11-12 09:02:40 -0300418 if (!rc->driver_name)
419 rc->driver_name = MODULE_NAME;
Dmitry Torokhovb7df3912005-09-15 02:01:53 -0500420
David Härdemand8b4b582010-10-29 16:08:23 -0300421 err = rc_register_device(rc);
Dmitry Torokhovb07b4782006-11-20 10:23:04 -0300422 if (err)
Jean Delvarec668f322009-05-13 16:48:50 -0300423 goto err_out_free;
Dmitry Torokhovb07b4782006-11-20 10:23:04 -0300424
Mauro Carvalho Chehab727e6252010-03-12 21:18:14 -0300425 printk(MODULE_NAME ": %s detected at %s [%s]\n",
David Härdemand8b4b582010-10-29 16:08:23 -0300426 ir->name, ir->phys, adap->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
428 /* start polling via eventd */
Jean Delvarec1089bd2009-03-07 07:43:43 -0300429 INIT_DELAYED_WORK(&ir->work, ir_work);
430 schedule_delayed_work(&ir->work, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431
432 return 0;
Dmitry Torokhovb07b4782006-11-20 10:23:04 -0300433
Dmitry Torokhovb07b4782006-11-20 10:23:04 -0300434 err_out_free:
Mauro Carvalho Chehab2eb25832010-11-12 09:02:40 -0300435 /* Only frees rc if it were allocated internally */
David Härdemand8b4b582010-10-29 16:08:23 -0300436 rc_free_device(rc);
Dmitry Torokhovb07b4782006-11-20 10:23:04 -0300437 kfree(ir);
438 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439}
440
Jean Delvarec668f322009-05-13 16:48:50 -0300441static int ir_remove(struct i2c_client *client)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442{
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800443 struct IR_i2c *ir = i2c_get_clientdata(client);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444
445 /* kill outstanding polls */
Jean Delvarec1089bd2009-03-07 07:43:43 -0300446 cancel_delayed_work_sync(&ir->work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
Jean Delvarec668f322009-05-13 16:48:50 -0300448 /* unregister device */
David Härdemand8b4b582010-10-29 16:08:23 -0300449 rc_unregister_device(ir->rc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450
451 /* free memory */
452 kfree(ir);
453 return 0;
454}
455
Jean Delvarec668f322009-05-13 16:48:50 -0300456static const struct i2c_device_id ir_kbd_id[] = {
457 /* Generic entry for any IR receiver */
458 { "ir_video", 0 },
Andy Wallsf5d887a2009-07-28 11:50:14 -0300459 /* IR device specific entries should be added here */
460 { "ir_rx_z8f0811_haup", 0 },
Andy Wallsa9cd5912010-12-28 22:47:46 -0300461 { "ir_rx_z8f0811_hdpvr", 0 },
Jean Delvarec668f322009-05-13 16:48:50 -0300462 { }
463};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464
Jean Delvarec668f322009-05-13 16:48:50 -0300465static struct i2c_driver driver = {
466 .driver = {
467 .name = "ir-kbd-i2c",
468 },
469 .probe = ir_probe,
470 .remove = ir_remove,
471 .id_table = ir_kbd_id,
472};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473
474/* ----------------------------------------------------------------------- */
475
476MODULE_AUTHOR("Gerd Knorr, Michal Kochanowicz, Christoph Bartelmus, Ulrich Mueller");
477MODULE_DESCRIPTION("input driver for i2c IR remote controls");
478MODULE_LICENSE("GPL");
479
480static int __init ir_init(void)
481{
482 return i2c_add_driver(&driver);
483}
484
485static void __exit ir_fini(void)
486{
487 i2c_del_driver(&driver);
488}
489
490module_init(ir_init);
491module_exit(ir_fini);
492
493/*
494 * Overrides for Emacs so that we follow Linus's tabbing style.
495 * ---------------------------------------------------------------------------
496 * Local variables:
497 * c-basic-offset: 8
498 * End:
499 */