Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * |
| 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 Rechberger | c365864 | 2005-11-08 21:37:21 -0800 | [diff] [blame] | 11 | * modified for em2820 based USB TV tuners by |
| 12 | * Markus Rechberger <mrechberger@gmail.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this program; if not, write to the Free Software |
| 26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | #include <linux/module.h> |
| 31 | #include <linux/moduleparam.h> |
| 32 | #include <linux/init.h> |
| 33 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <linux/string.h> |
| 35 | #include <linux/timer.h> |
| 36 | #include <linux/delay.h> |
| 37 | #include <linux/errno.h> |
| 38 | #include <linux/slab.h> |
| 39 | #include <linux/i2c.h> |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 40 | #include <linux/i2c-id.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <linux/workqueue.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <asm/semaphore.h> |
Mauro Carvalho Chehab | 674434c | 2005-12-12 00:37:28 -0800 | [diff] [blame] | 43 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <media/ir-common.h> |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 45 | #include <media/ir-kbd-i2c.h> |
Markus Rechberger | c365864 | 2005-11-08 21:37:21 -0800 | [diff] [blame] | 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | /* ----------------------------------------------------------------------- */ |
| 48 | /* insmod parameters */ |
| 49 | |
| 50 | static int debug; |
| 51 | module_param(debug, int, 0644); /* debug level (0,1,2) */ |
| 52 | |
J.O. Aho | bf47e4e | 2006-01-23 09:34:06 -0200 | [diff] [blame] | 53 | static int hauppauge = 0; |
| 54 | module_param(hauppauge, int, 0644); /* Choose Hauppauge remote */ |
| 55 | MODULE_PARM_DESC(hauppauge, "Specify Hauppauge remote: 0=black, 1=grey (defaults to 0)"); |
| 56 | |
| 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | #define DEVNAME "ir-kbd-i2c" |
| 59 | #define dprintk(level, fmt, arg...) if (debug >= level) \ |
| 60 | printk(KERN_DEBUG DEVNAME ": " fmt , ## arg) |
| 61 | |
| 62 | /* ----------------------------------------------------------------------- */ |
| 63 | |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 64 | static int get_key_haup_common(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw, |
| 65 | int size, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | { |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 67 | unsigned char buf[6]; |
David Hardeman | cc7093d | 2006-09-26 16:39:00 -0300 | [diff] [blame] | 68 | int start, range, toggle, dev, code; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | /* poll IR chip */ |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 71 | if (size != i2c_master_recv(&ir->c,buf,size)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | return -EIO; |
| 73 | |
| 74 | /* split rc5 data block ... */ |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 75 | start = (buf[offset] >> 7) & 1; |
| 76 | range = (buf[offset] >> 6) & 1; |
| 77 | toggle = (buf[offset] >> 5) & 1; |
| 78 | dev = buf[offset] & 0x1f; |
| 79 | code = (buf[offset+1] >> 2) & 0x3f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | |
David Hardeman | cc7093d | 2006-09-26 16:39:00 -0300 | [diff] [blame] | 81 | /* rc5 has two start bits |
| 82 | * the first bit must be one |
| 83 | * the second bit defines the command range (1 = 0-63, 0 = 64 - 127) |
| 84 | */ |
| 85 | if (!start) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | /* no key pressed */ |
| 87 | return 0; |
David Hardeman | cc7093d | 2006-09-26 16:39:00 -0300 | [diff] [blame] | 88 | |
| 89 | if (!range) |
| 90 | code += 64; |
| 91 | |
| 92 | dprintk(1,"ir hauppauge (rc5): s%d r%d t%d dev=%d code=%d\n", |
| 93 | start, range, toggle, dev, code); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | |
| 95 | /* return key */ |
| 96 | *ir_key = code; |
| 97 | *ir_raw = (start << 12) | (toggle << 11) | (dev << 6) | code; |
| 98 | return 1; |
| 99 | } |
| 100 | |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 101 | static inline int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
| 102 | { |
| 103 | return get_key_haup_common (ir, ir_key, ir_raw, 3, 0); |
| 104 | } |
| 105 | |
| 106 | static inline int get_key_haup_xvr(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
| 107 | { |
| 108 | return get_key_haup_common (ir, ir_key, ir_raw, 6, 3); |
| 109 | } |
| 110 | |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 111 | static int get_key_pixelview(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 113 | unsigned char b; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | |
| 115 | /* poll IR chip */ |
| 116 | if (1 != i2c_master_recv(&ir->c,&b,1)) { |
| 117 | dprintk(1,"read error\n"); |
| 118 | return -EIO; |
| 119 | } |
| 120 | *ir_key = b; |
| 121 | *ir_raw = b; |
| 122 | return 1; |
| 123 | } |
| 124 | |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 125 | static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 127 | unsigned char b; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | |
| 129 | /* poll IR chip */ |
| 130 | if (1 != i2c_master_recv(&ir->c,&b,1)) { |
| 131 | dprintk(1,"read error\n"); |
| 132 | return -EIO; |
| 133 | } |
| 134 | |
| 135 | /* ignore 0xaa */ |
| 136 | if (b==0xaa) |
| 137 | return 0; |
| 138 | dprintk(2,"key %02x\n", b); |
| 139 | |
| 140 | *ir_key = b; |
| 141 | *ir_raw = b; |
| 142 | return 1; |
| 143 | } |
| 144 | |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 145 | static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | { |
| 147 | unsigned char b; |
| 148 | |
| 149 | /* poll IR chip */ |
| 150 | if (1 != i2c_master_recv(&ir->c,&b,1)) { |
| 151 | dprintk(1,"read error\n"); |
| 152 | return -EIO; |
| 153 | } |
| 154 | |
| 155 | /* it seems that 0xFE indicates that a button is still hold |
Mauro Carvalho Chehab | 4f9c05a | 2005-11-08 21:37:36 -0800 | [diff] [blame] | 156 | down, while 0xff indicates that no button is hold |
| 157 | down. 0xfe sequences are sometimes interrupted by 0xFF */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | |
| 159 | dprintk(2,"key %02x\n", b); |
| 160 | |
Mauro Carvalho Chehab | 4f9c05a | 2005-11-08 21:37:36 -0800 | [diff] [blame] | 161 | if (b == 0xff) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | return 0; |
| 163 | |
Mauro Carvalho Chehab | 4f9c05a | 2005-11-08 21:37:36 -0800 | [diff] [blame] | 164 | if (b == 0xfe) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | /* keep old data */ |
| 166 | return 1; |
| 167 | |
| 168 | *ir_key = b; |
| 169 | *ir_raw = b; |
| 170 | return 1; |
| 171 | } |
| 172 | |
Sylvain Pasche | b93eedb | 2006-03-25 23:14:42 -0300 | [diff] [blame] | 173 | /* Common (grey or coloured) pinnacle PCTV remote handling |
Ricardo Cerqueira | 8069695 | 2005-11-13 16:07:49 -0800 | [diff] [blame] | 174 | * |
Ricardo Cerqueira | 8069695 | 2005-11-13 16:07:49 -0800 | [diff] [blame] | 175 | */ |
Sylvain Pasche | b93eedb | 2006-03-25 23:14:42 -0300 | [diff] [blame] | 176 | static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw, |
| 177 | int parity_offset, int marker, int code_modulo) |
Ricardo Cerqueira | 8069695 | 2005-11-13 16:07:49 -0800 | [diff] [blame] | 178 | { |
| 179 | unsigned char b[4]; |
| 180 | unsigned int start = 0,parity = 0,code = 0; |
| 181 | |
| 182 | /* poll IR chip */ |
| 183 | if (4 != i2c_master_recv(&ir->c,b,4)) { |
| 184 | dprintk(2,"read error\n"); |
| 185 | return -EIO; |
| 186 | } |
| 187 | |
Mauro Carvalho Chehab | 53c4e95 | 2007-03-29 08:42:30 -0300 | [diff] [blame] | 188 | for (start = 0; start < ARRAY_SIZE(b); start++) { |
Sylvain Pasche | b93eedb | 2006-03-25 23:14:42 -0300 | [diff] [blame] | 189 | if (b[start] == marker) { |
| 190 | code=b[(start+parity_offset+1)%4]; |
| 191 | parity=b[(start+parity_offset)%4]; |
Ricardo Cerqueira | 8069695 | 2005-11-13 16:07:49 -0800 | [diff] [blame] | 192 | } |
| 193 | } |
| 194 | |
| 195 | /* Empty Request */ |
| 196 | if (parity==0) |
| 197 | return 0; |
| 198 | |
| 199 | /* Repeating... */ |
| 200 | if (ir->old == parity) |
| 201 | return 0; |
| 202 | |
Ricardo Cerqueira | 8069695 | 2005-11-13 16:07:49 -0800 | [diff] [blame] | 203 | ir->old = parity; |
| 204 | |
Sylvain Pasche | b93eedb | 2006-03-25 23:14:42 -0300 | [diff] [blame] | 205 | /* drop special codes when a key is held down a long time for the grey controller |
| 206 | In this case, the second bit of the code is asserted */ |
| 207 | if (marker == 0xfe && (code & 0x40)) |
| 208 | return 0; |
Ricardo Cerqueira | 8069695 | 2005-11-13 16:07:49 -0800 | [diff] [blame] | 209 | |
Sylvain Pasche | b93eedb | 2006-03-25 23:14:42 -0300 | [diff] [blame] | 210 | code %= code_modulo; |
Ricardo Cerqueira | 8069695 | 2005-11-13 16:07:49 -0800 | [diff] [blame] | 211 | |
| 212 | *ir_raw = code; |
| 213 | *ir_key = code; |
| 214 | |
| 215 | dprintk(1,"Pinnacle PCTV key %02x\n", code); |
| 216 | |
| 217 | return 1; |
| 218 | } |
| 219 | |
Sylvain Pasche | b93eedb | 2006-03-25 23:14:42 -0300 | [diff] [blame] | 220 | /* The grey pinnacle PCTV remote |
| 221 | * |
| 222 | * There are one issue with this remote: |
| 223 | * - I2c packet does not change when the same key is pressed quickly. The workaround |
| 224 | * is to hold down each key for about half a second, so that another code is generated |
| 225 | * in the i2c packet, and the function can distinguish key presses. |
| 226 | * |
| 227 | * Sylvain Pasche <sylvain.pasche@gmail.com> |
| 228 | */ |
| 229 | int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
| 230 | { |
| 231 | |
| 232 | return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff); |
| 233 | } |
| 234 | |
| 235 | EXPORT_SYMBOL_GPL(get_key_pinnacle_grey); |
| 236 | |
| 237 | |
| 238 | /* The new pinnacle PCTV remote (with the colored buttons) |
| 239 | * |
| 240 | * Ricardo Cerqueira <v4l@cerqueira.org> |
| 241 | */ |
| 242 | int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
| 243 | { |
| 244 | /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE |
| 245 | * |
| 246 | * this is the only value that results in 42 unique |
| 247 | * codes < 128 |
| 248 | */ |
| 249 | |
| 250 | return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88); |
| 251 | } |
| 252 | |
| 253 | EXPORT_SYMBOL_GPL(get_key_pinnacle_color); |
Ricardo Cerqueira | 8069695 | 2005-11-13 16:07:49 -0800 | [diff] [blame] | 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | /* ----------------------------------------------------------------------- */ |
| 256 | |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 257 | static void ir_key_poll(struct IR_i2c *ir) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | { |
| 259 | static u32 ir_key, ir_raw; |
| 260 | int rc; |
| 261 | |
| 262 | dprintk(2,"ir_poll_key\n"); |
| 263 | rc = ir->get_key(ir, &ir_key, &ir_raw); |
| 264 | if (rc < 0) { |
| 265 | dprintk(2,"error\n"); |
| 266 | return; |
| 267 | } |
| 268 | |
| 269 | if (0 == rc) { |
Dmitry Torokhov | b7df391 | 2005-09-15 02:01:53 -0500 | [diff] [blame] | 270 | ir_input_nokey(ir->input, &ir->ir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | } else { |
Dmitry Torokhov | b7df391 | 2005-09-15 02:01:53 -0500 | [diff] [blame] | 272 | ir_input_keydown(ir->input, &ir->ir, ir_key, ir_raw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | } |
| 274 | } |
| 275 | |
| 276 | static void ir_timer(unsigned long data) |
| 277 | { |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 278 | struct IR_i2c *ir = (struct IR_i2c*)data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | schedule_work(&ir->work); |
| 280 | } |
| 281 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 282 | static void ir_work(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 284 | struct IR_i2c *ir = container_of(work, struct IR_i2c, work); |
Dmitry Torokhov | 8083c52 | 2007-05-21 11:51:11 -0300 | [diff] [blame] | 285 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | ir_key_poll(ir); |
Dmitry Torokhov | 8083c52 | 2007-05-21 11:51:11 -0300 | [diff] [blame] | 287 | mod_timer(&ir->timer, jiffies + msecs_to_jiffies(100)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | } |
| 289 | |
| 290 | /* ----------------------------------------------------------------------- */ |
| 291 | |
| 292 | static int ir_attach(struct i2c_adapter *adap, int addr, |
| 293 | unsigned short flags, int kind); |
| 294 | static int ir_detach(struct i2c_client *client); |
| 295 | static int ir_probe(struct i2c_adapter *adap); |
| 296 | |
| 297 | static struct i2c_driver driver = { |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 298 | .driver = { |
Mauro Carvalho Chehab | cab462f | 2006-01-09 15:53:26 -0200 | [diff] [blame] | 299 | .name = "ir-kbd-i2c", |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 300 | }, |
Mauro Carvalho Chehab | dd81540 | 2005-12-12 00:37:31 -0800 | [diff] [blame] | 301 | .id = I2C_DRIVERID_INFRARED, |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 302 | .attach_adapter = ir_probe, |
| 303 | .detach_client = ir_detach, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | }; |
| 305 | |
| 306 | static struct i2c_client client_template = |
| 307 | { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 308 | .name = "unset", |
| 309 | .driver = &driver |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | }; |
| 311 | |
| 312 | static int ir_attach(struct i2c_adapter *adap, int addr, |
| 313 | unsigned short flags, int kind) |
| 314 | { |
| 315 | IR_KEYTAB_TYPE *ir_codes = NULL; |
| 316 | char *name; |
| 317 | int ir_type; |
Mauro Carvalho Chehab | afd1a0c | 2005-12-12 00:37:27 -0800 | [diff] [blame] | 318 | struct IR_i2c *ir; |
Dmitry Torokhov | b7df391 | 2005-09-15 02:01:53 -0500 | [diff] [blame] | 319 | struct input_dev *input_dev; |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 320 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | |
Mauro Carvalho Chehab | 674434c | 2005-12-12 00:37:28 -0800 | [diff] [blame] | 322 | ir = kzalloc(sizeof(struct IR_i2c),GFP_KERNEL); |
Dmitry Torokhov | b7df391 | 2005-09-15 02:01:53 -0500 | [diff] [blame] | 323 | input_dev = input_allocate_device(); |
| 324 | if (!ir || !input_dev) { |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 325 | err = -ENOMEM; |
| 326 | goto err_out_free; |
Dmitry Torokhov | b7df391 | 2005-09-15 02:01:53 -0500 | [diff] [blame] | 327 | } |
| 328 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | ir->c = client_template; |
Dmitry Torokhov | b7df391 | 2005-09-15 02:01:53 -0500 | [diff] [blame] | 330 | ir->input = input_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | ir->c.adapter = adap; |
| 333 | ir->c.addr = addr; |
| 334 | |
Mauro Carvalho Chehab | d21838d | 2006-01-09 15:25:21 -0200 | [diff] [blame] | 335 | i2c_set_clientdata(&ir->c, ir); |
| 336 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | switch(addr) { |
| 338 | case 0x64: |
| 339 | name = "Pixelview"; |
| 340 | ir->get_key = get_key_pixelview; |
| 341 | ir_type = IR_TYPE_OTHER; |
| 342 | ir_codes = ir_codes_empty; |
| 343 | break; |
| 344 | case 0x4b: |
| 345 | name = "PV951"; |
| 346 | ir->get_key = get_key_pv951; |
| 347 | ir_type = IR_TYPE_OTHER; |
| 348 | ir_codes = ir_codes_pv951; |
| 349 | break; |
| 350 | case 0x18: |
| 351 | case 0x1a: |
| 352 | name = "Hauppauge"; |
| 353 | ir->get_key = get_key_haup; |
| 354 | ir_type = IR_TYPE_RC5; |
J.O. Aho | bf47e4e | 2006-01-23 09:34:06 -0200 | [diff] [blame] | 355 | if (hauppauge == 1) { |
Ricardo Cerqueira | 4c0f631 | 2006-01-23 09:42:06 -0200 | [diff] [blame] | 356 | ir_codes = ir_codes_hauppauge_new; |
J.O. Aho | bf47e4e | 2006-01-23 09:34:06 -0200 | [diff] [blame] | 357 | } else { |
| 358 | ir_codes = ir_codes_rc5_tv; |
| 359 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | break; |
| 361 | case 0x30: |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 362 | name = "KNC One"; |
| 363 | ir->get_key = get_key_knc1; |
| 364 | ir_type = IR_TYPE_OTHER; |
| 365 | ir_codes = ir_codes_empty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | break; |
| 367 | case 0x7a: |
Ricardo Cerqueira | ac9cd97 | 2005-11-08 21:37:56 -0800 | [diff] [blame] | 368 | case 0x47: |
Thomas Genty | 177aaaf | 2006-11-29 21:57:24 -0300 | [diff] [blame] | 369 | case 0x71: |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 370 | if (adap->id == I2C_HW_B_CX2388x) { |
| 371 | /* Handled by cx88-input */ |
| 372 | name = "CX2388x remote"; |
| 373 | ir_type = IR_TYPE_RC5; |
| 374 | ir->get_key = get_key_haup_xvr; |
| 375 | if (hauppauge == 1) { |
| 376 | ir_codes = ir_codes_hauppauge_new; |
| 377 | } else { |
| 378 | ir_codes = ir_codes_rc5_tv; |
| 379 | } |
| 380 | } else { |
| 381 | /* Handled by saa7134-input */ |
| 382 | name = "SAA713x remote"; |
| 383 | ir_type = IR_TYPE_OTHER; |
| 384 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | break; |
| 386 | default: |
| 387 | /* shouldn't happen */ |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 388 | printk(DEVNAME ": Huh? unknown i2c address (0x%02x)?\n", addr); |
| 389 | err = -ENODEV; |
| 390 | goto err_out_free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | } |
| 392 | |
Ricardo Cerqueira | ac9cd97 | 2005-11-08 21:37:56 -0800 | [diff] [blame] | 393 | /* Sets name */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (%s)", name); |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 395 | ir->ir_codes = ir_codes; |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 396 | |
| 397 | /* register i2c device |
| 398 | * At device register, IR codes may be changed to be |
| 399 | * board dependent. |
Mauro Carvalho Chehab | 674434c | 2005-12-12 00:37:28 -0800 | [diff] [blame] | 400 | */ |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 401 | err = i2c_attach_client(&ir->c); |
| 402 | if (err) |
| 403 | goto err_out_free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | |
Ricardo Cerqueira | ac9cd97 | 2005-11-08 21:37:56 -0800 | [diff] [blame] | 405 | /* If IR not supported or disabled, unregisters driver */ |
| 406 | if (ir->get_key == NULL) { |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 407 | err = -ENODEV; |
| 408 | goto err_out_detach; |
Ricardo Cerqueira | ac9cd97 | 2005-11-08 21:37:56 -0800 | [diff] [blame] | 409 | } |
| 410 | |
| 411 | /* Phys addr can only be set after attaching (for ir->c.dev.bus_id) */ |
| 412 | snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0", |
| 413 | ir->c.adapter->dev.bus_id, |
| 414 | ir->c.dev.bus_id); |
| 415 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | /* init + register input device */ |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 417 | ir_input_init(input_dev, &ir->ir, ir_type, ir->ir_codes); |
Mauro Carvalho Chehab | d21838d | 2006-01-09 15:25:21 -0200 | [diff] [blame] | 418 | input_dev->id.bustype = BUS_I2C; |
| 419 | input_dev->name = ir->c.name; |
| 420 | input_dev->phys = ir->phys; |
Dmitry Torokhov | b7df391 | 2005-09-15 02:01:53 -0500 | [diff] [blame] | 421 | |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 422 | err = input_register_device(ir->input); |
| 423 | if (err) |
| 424 | goto err_out_detach; |
| 425 | |
Mauro Carvalho Chehab | d21838d | 2006-01-09 15:25:21 -0200 | [diff] [blame] | 426 | printk(DEVNAME ": %s detected at %s [%s]\n", |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 427 | ir->input->name, ir->input->phys, adap->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | |
| 429 | /* start polling via eventd */ |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 430 | INIT_WORK(&ir->work, ir_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | init_timer(&ir->timer); |
| 432 | ir->timer.function = ir_timer; |
| 433 | ir->timer.data = (unsigned long)ir; |
| 434 | schedule_work(&ir->work); |
| 435 | |
| 436 | return 0; |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 437 | |
| 438 | err_out_detach: |
| 439 | i2c_detach_client(&ir->c); |
| 440 | err_out_free: |
| 441 | input_free_device(input_dev); |
| 442 | kfree(ir); |
| 443 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | } |
| 445 | |
| 446 | static int ir_detach(struct i2c_client *client) |
| 447 | { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 448 | struct IR_i2c *ir = i2c_get_clientdata(client); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
| 450 | /* kill outstanding polls */ |
Dmitry Torokhov | b07b478 | 2006-11-20 10:23:04 -0300 | [diff] [blame] | 451 | del_timer_sync(&ir->timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | flush_scheduled_work(); |
| 453 | |
| 454 | /* unregister devices */ |
Dmitry Torokhov | b7df391 | 2005-09-15 02:01:53 -0500 | [diff] [blame] | 455 | input_unregister_device(ir->input); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | i2c_detach_client(&ir->c); |
| 457 | |
| 458 | /* free memory */ |
| 459 | kfree(ir); |
| 460 | return 0; |
| 461 | } |
| 462 | |
| 463 | static int ir_probe(struct i2c_adapter *adap) |
| 464 | { |
| 465 | |
| 466 | /* The external IR receiver is at i2c address 0x34 (0x35 for |
| 467 | reads). Future Hauppauge cards will have an internal |
| 468 | receiver at 0x30 (0x31 for reads). In theory, both can be |
| 469 | fitted, and Hauppauge suggest an external overrides an |
| 470 | internal. |
| 471 | |
| 472 | That's why we probe 0x1a (~0x34) first. CB |
| 473 | */ |
| 474 | |
| 475 | static const int probe_bttv[] = { 0x1a, 0x18, 0x4b, 0x64, 0x30, -1}; |
Thomas Genty | 177aaaf | 2006-11-29 21:57:24 -0300 | [diff] [blame] | 476 | static const int probe_saa7134[] = { 0x7a, 0x47, 0x71, -1 }; |
Mauro Carvalho Chehab | b296fc6 | 2005-11-08 21:38:37 -0800 | [diff] [blame] | 477 | static const int probe_em28XX[] = { 0x30, 0x47, -1 }; |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 478 | static const int probe_cx88[] = { 0x18, 0x71, -1 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | const int *probe = NULL; |
Mauro Carvalho Chehab | 4f9c05a | 2005-11-08 21:37:36 -0800 | [diff] [blame] | 480 | struct i2c_client c; |
| 481 | unsigned char buf; |
| 482 | int i,rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | |
| 484 | switch (adap->id) { |
Jean Delvare | c7a4653 | 2005-08-11 23:41:56 +0200 | [diff] [blame] | 485 | case I2C_HW_B_BT848: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | probe = probe_bttv; |
| 487 | break; |
Hans Verkuil | 51dab14 | 2006-03-25 08:10:12 -0300 | [diff] [blame] | 488 | case I2C_HW_B_CX2341X: |
Hans Verkuil | c097b04 | 2006-03-30 19:57:28 -0300 | [diff] [blame] | 489 | probe = probe_bttv; |
Hans Verkuil | 51dab14 | 2006-03-25 08:10:12 -0300 | [diff] [blame] | 490 | break; |
Jean Delvare | 1684a984 | 2005-08-11 23:51:10 +0200 | [diff] [blame] | 491 | case I2C_HW_SAA7134: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | probe = probe_saa7134; |
| 493 | break; |
Mauro Carvalho Chehab | b296fc6 | 2005-11-08 21:38:37 -0800 | [diff] [blame] | 494 | case I2C_HW_B_EM28XX: |
| 495 | probe = probe_em28XX; |
Markus Rechberger | c365864 | 2005-11-08 21:37:21 -0800 | [diff] [blame] | 496 | break; |
Jan Frey | 39cf1e8 | 2007-06-25 14:34:06 -0300 | [diff] [blame^] | 497 | case I2C_HW_B_CX2388x: |
| 498 | probe = probe_cx88; |
| 499 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | } |
| 501 | if (NULL == probe) |
| 502 | return 0; |
| 503 | |
| 504 | memset(&c,0,sizeof(c)); |
| 505 | c.adapter = adap; |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 506 | for (i = 0; -1 != probe[i]; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | c.addr = probe[i]; |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 508 | rc = i2c_master_recv(&c,&buf,0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | dprintk(1,"probe 0x%02x @ %s: %s\n", |
| 510 | probe[i], adap->name, |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 511 | (0 == rc) ? "yes" : "no"); |
| 512 | if (0 == rc) { |
| 513 | ir_attach(adap,probe[i],0,0); |
| 514 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | } |
| 516 | } |
| 517 | return 0; |
| 518 | } |
| 519 | |
| 520 | /* ----------------------------------------------------------------------- */ |
| 521 | |
| 522 | MODULE_AUTHOR("Gerd Knorr, Michal Kochanowicz, Christoph Bartelmus, Ulrich Mueller"); |
| 523 | MODULE_DESCRIPTION("input driver for i2c IR remote controls"); |
| 524 | MODULE_LICENSE("GPL"); |
| 525 | |
| 526 | static int __init ir_init(void) |
| 527 | { |
| 528 | return i2c_add_driver(&driver); |
| 529 | } |
| 530 | |
| 531 | static void __exit ir_fini(void) |
| 532 | { |
| 533 | i2c_del_driver(&driver); |
| 534 | } |
| 535 | |
| 536 | module_init(ir_init); |
| 537 | module_exit(ir_fini); |
| 538 | |
| 539 | /* |
| 540 | * Overrides for Emacs so that we follow Linus's tabbing style. |
| 541 | * --------------------------------------------------------------------------- |
| 542 | * Local variables: |
| 543 | * c-basic-offset: 8 |
| 544 | * End: |
| 545 | */ |