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Merge branch 'v6v7' into devel
[linux/fpc-iii.git] / drivers / media / video / saa7110.c
blob7913f93979b8ccfe2e5f81f0aedb3704872f1166
1 /*
2 * saa7110 - Philips SAA7110(A) video decoder driver
3 *
4 * Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
5 *
6 * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
7 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
8 * - some corrections for Pinnacle Systems Inc. DC10plus card.
9 *
10 * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
11 * - moved over to linux>=2.4.x i2c protocol (1/1/2003)
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 */
27
28 #include <linux/module.h>
29 #include <linux/init.h>
30 #include <linux/types.h>
31 #include <linux/delay.h>
32 #include <linux/slab.h>
33 #include <linux/wait.h>
34 #include <asm/uaccess.h>
35 #include <linux/i2c.h>
36 #include <linux/videodev2.h>
37 #include <media/v4l2-device.h>
38 #include <media/v4l2-chip-ident.h>
39
40 MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
41 MODULE_AUTHOR("Pauline Middelink");
42 MODULE_LICENSE("GPL");
43
44
45 static int debug;
46 module_param(debug, int, 0);
47 MODULE_PARM_DESC(debug, "Debug level (0-1)");
48
49 #define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */
50 #define SAA7110_MAX_OUTPUT 1 /* 1 YUV */
51
52 #define SAA7110_NR_REG 0x35
53
54 struct saa7110 {
55 struct v4l2_subdev sd;
56 u8 reg[SAA7110_NR_REG];
57
58 v4l2_std_id norm;
59 int input;
60 int enable;
61 int bright;
62 int contrast;
63 int hue;
64 int sat;
65
66 wait_queue_head_t wq;
67 };
68
69 static inline struct saa7110 *to_saa7110(struct v4l2_subdev *sd)
70 {
71 return container_of(sd, struct saa7110, sd);
72 }
73
74 /* ----------------------------------------------------------------------- */
75 /* I2C support functions */
76 /* ----------------------------------------------------------------------- */
77
78 static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
79 {
80 struct i2c_client *client = v4l2_get_subdevdata(sd);
81 struct saa7110 *decoder = to_saa7110(sd);
82
83 decoder->reg[reg] = value;
84 return i2c_smbus_write_byte_data(client, reg, value);
85 }
86
87 static int saa7110_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len)
88 {
89 struct i2c_client *client = v4l2_get_subdevdata(sd);
90 struct saa7110 *decoder = to_saa7110(sd);
91 int ret = -1;
92 u8 reg = *data; /* first register to write to */
93
94 /* Sanity check */
95 if (reg + (len - 1) > SAA7110_NR_REG)
96 return ret;
97
98 /* the saa7110 has an autoincrement function, use it if
99 * the adapter understands raw I2C */
100 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
101 ret = i2c_master_send(client, data, len);
102
103 /* Cache the written data */
104 memcpy(decoder->reg + reg, data + 1, len - 1);
105 } else {
106 for (++data, --len; len; len--) {
107 ret = saa7110_write(sd, reg++, *data++);
108 if (ret < 0)
109 break;
110 }
111 }
112
113 return ret;
114 }
115
116 static inline int saa7110_read(struct v4l2_subdev *sd)
117 {
118 struct i2c_client *client = v4l2_get_subdevdata(sd);
119
120 return i2c_smbus_read_byte(client);
121 }
122
123 /* ----------------------------------------------------------------------- */
124 /* SAA7110 functions */
125 /* ----------------------------------------------------------------------- */
126
127 #define FRESP_06H_COMPST 0x03 /*0x13*/
128 #define FRESP_06H_SVIDEO 0x83 /*0xC0*/
129
130
131 static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
132 {
133 static const unsigned char modes[9][8] = {
134 /* mode 0 */
135 {FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
136 0x44, 0x75, 0x16},
137 /* mode 1 */
138 {FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
139 0x44, 0x75, 0x16},
140 /* mode 2 */
141 {FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
142 0x60, 0xB5, 0x05},
143 /* mode 3 */
144 {FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
145 0x60, 0xB5, 0x05},
146 /* mode 4 */
147 {FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
148 0x60, 0xB5, 0x03},
149 /* mode 5 */
150 {FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
151 0x60, 0xB5, 0x03},
152 /* mode 6 */
153 {FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
154 0x44, 0x75, 0x12},
155 /* mode 7 */
156 {FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
157 0x60, 0xB5, 0x14},
158 /* mode 8 */
159 {FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
160 0x44, 0x75, 0x21}
161 };
162 struct saa7110 *decoder = to_saa7110(sd);
163 const unsigned char *ptr = modes[chan];
164
165 saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */
166 saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */
167 saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */
168 saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */
169 saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */
170 saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */
171 saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */
172 saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */
173 decoder->input = chan;
174
175 return 0;
176 }
177
178 static const unsigned char initseq[1 + SAA7110_NR_REG] = {
179 0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
180 /* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
181 /* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
182 /* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
183 /* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
184 /* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
185 /* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
186 };
187
188 static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
189 {
190 DEFINE_WAIT(wait);
191 struct saa7110 *decoder = to_saa7110(sd);
192 int status;
193
194 /* mode changed, start automatic detection */
195 saa7110_write_block(sd, initseq, sizeof(initseq));
196 saa7110_selmux(sd, decoder->input);
197 prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
198 schedule_timeout(msecs_to_jiffies(250));
199 finish_wait(&decoder->wq, &wait);
200 status = saa7110_read(sd);
201 if (status & 0x40) {
202 v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
203 return decoder->norm; /* no change*/
204 }
205 if ((status & 3) == 0) {
206 saa7110_write(sd, 0x06, 0x83);
207 if (status & 0x20) {
208 v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
209 /*saa7110_write(sd,0x2E,0x81);*/
210 return V4L2_STD_NTSC;
211 }
212 v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
213 /*saa7110_write(sd,0x2E,0x9A);*/
214 return V4L2_STD_PAL;
215 }
216 /*saa7110_write(sd,0x06,0x03);*/
217 if (status & 0x20) { /* 60Hz */
218 v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
219 saa7110_write(sd, 0x0D, 0x86);
220 saa7110_write(sd, 0x0F, 0x50);
221 saa7110_write(sd, 0x11, 0x2C);
222 /*saa7110_write(sd,0x2E,0x81);*/
223 return V4L2_STD_NTSC;
224 }
225
226 /* 50Hz -> PAL/SECAM */
227 saa7110_write(sd, 0x0D, 0x86);
228 saa7110_write(sd, 0x0F, 0x10);
229 saa7110_write(sd, 0x11, 0x59);
230 /*saa7110_write(sd,0x2E,0x9A);*/
231
232 prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
233 schedule_timeout(msecs_to_jiffies(250));
234 finish_wait(&decoder->wq, &wait);
235
236 status = saa7110_read(sd);
237 if ((status & 0x03) == 0x01) {
238 v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
239 saa7110_write(sd, 0x0D, 0x87);
240 return V4L2_STD_SECAM;
241 }
242 v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
243 return V4L2_STD_PAL;
244 }
245
246 static int saa7110_g_input_status(struct v4l2_subdev *sd, u32 *pstatus)
247 {
248 struct saa7110 *decoder = to_saa7110(sd);
249 int res = V4L2_IN_ST_NO_SIGNAL;
250 int status = saa7110_read(sd);
251
252 v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
253 status, (unsigned long long)decoder->norm);
254 if (!(status & 0x40))
255 res = 0;
256 if (!(status & 0x03))
257 res |= V4L2_IN_ST_NO_COLOR;
258
259 *pstatus = res;
260 return 0;
261 }
262
263 static int saa7110_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
264 {
265 *(v4l2_std_id *)std = determine_norm(sd);
266 return 0;
267 }
268
269 static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
270 {
271 struct saa7110 *decoder = to_saa7110(sd);
272
273 if (decoder->norm != std) {
274 decoder->norm = std;
275 /*saa7110_write(sd, 0x06, 0x03);*/
276 if (std & V4L2_STD_NTSC) {
277 saa7110_write(sd, 0x0D, 0x86);
278 saa7110_write(sd, 0x0F, 0x50);
279 saa7110_write(sd, 0x11, 0x2C);
280 /*saa7110_write(sd, 0x2E, 0x81);*/
281 v4l2_dbg(1, debug, sd, "switched to NTSC\n");
282 } else if (std & V4L2_STD_PAL) {
283 saa7110_write(sd, 0x0D, 0x86);
284 saa7110_write(sd, 0x0F, 0x10);
285 saa7110_write(sd, 0x11, 0x59);
286 /*saa7110_write(sd, 0x2E, 0x9A);*/
287 v4l2_dbg(1, debug, sd, "switched to PAL\n");
288 } else if (std & V4L2_STD_SECAM) {
289 saa7110_write(sd, 0x0D, 0x87);
290 saa7110_write(sd, 0x0F, 0x10);
291 saa7110_write(sd, 0x11, 0x59);
292 /*saa7110_write(sd, 0x2E, 0x9A);*/
293 v4l2_dbg(1, debug, sd, "switched to SECAM\n");
294 } else {
295 return -EINVAL;
296 }
297 }
298 return 0;
299 }
300
301 static int saa7110_s_routing(struct v4l2_subdev *sd,
302 u32 input, u32 output, u32 config)
303 {
304 struct saa7110 *decoder = to_saa7110(sd);
305
306 if (input >= SAA7110_MAX_INPUT) {
307 v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
308 return -EINVAL;
309 }
310 if (decoder->input != input) {
311 saa7110_selmux(sd, input);
312 v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
313 }
314 return 0;
315 }
316
317 static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
318 {
319 struct saa7110 *decoder = to_saa7110(sd);
320
321 if (decoder->enable != enable) {
322 decoder->enable = enable;
323 saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
324 v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
325 }
326 return 0;
327 }
328
329 static int saa7110_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
330 {
331 switch (qc->id) {
332 case V4L2_CID_BRIGHTNESS:
333 return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
334 case V4L2_CID_CONTRAST:
335 case V4L2_CID_SATURATION:
336 return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
337 case V4L2_CID_HUE:
338 return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
339 default:
340 return -EINVAL;
341 }
342 return 0;
343 }
344
345 static int saa7110_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
346 {
347 struct saa7110 *decoder = to_saa7110(sd);
348
349 switch (ctrl->id) {
350 case V4L2_CID_BRIGHTNESS:
351 ctrl->value = decoder->bright;
352 break;
353 case V4L2_CID_CONTRAST:
354 ctrl->value = decoder->contrast;
355 break;
356 case V4L2_CID_SATURATION:
357 ctrl->value = decoder->sat;
358 break;
359 case V4L2_CID_HUE:
360 ctrl->value = decoder->hue;
361 break;
362 default:
363 return -EINVAL;
364 }
365 return 0;
366 }
367
368 static int saa7110_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
369 {
370 struct saa7110 *decoder = to_saa7110(sd);
371
372 switch (ctrl->id) {
373 case V4L2_CID_BRIGHTNESS:
374 if (decoder->bright != ctrl->value) {
375 decoder->bright = ctrl->value;
376 saa7110_write(sd, 0x19, decoder->bright);
377 }
378 break;
379 case V4L2_CID_CONTRAST:
380 if (decoder->contrast != ctrl->value) {
381 decoder->contrast = ctrl->value;
382 saa7110_write(sd, 0x13, decoder->contrast);
383 }
384 break;
385 case V4L2_CID_SATURATION:
386 if (decoder->sat != ctrl->value) {
387 decoder->sat = ctrl->value;
388 saa7110_write(sd, 0x12, decoder->sat);
389 }
390 break;
391 case V4L2_CID_HUE:
392 if (decoder->hue != ctrl->value) {
393 decoder->hue = ctrl->value;
394 saa7110_write(sd, 0x07, decoder->hue);
395 }
396 break;
397 default:
398 return -EINVAL;
399 }
400 return 0;
401 }
402
403 static int saa7110_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
404 {
405 struct i2c_client *client = v4l2_get_subdevdata(sd);
406
407 return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7110, 0);
408 }
409
410 /* ----------------------------------------------------------------------- */
411
412 static const struct v4l2_subdev_core_ops saa7110_core_ops = {
413 .g_chip_ident = saa7110_g_chip_ident,
414 .g_ctrl = saa7110_g_ctrl,
415 .s_ctrl = saa7110_s_ctrl,
416 .queryctrl = saa7110_queryctrl,
417 .s_std = saa7110_s_std,
418 };
419
420 static const struct v4l2_subdev_video_ops saa7110_video_ops = {
421 .s_routing = saa7110_s_routing,
422 .s_stream = saa7110_s_stream,
423 .querystd = saa7110_querystd,
424 .g_input_status = saa7110_g_input_status,
425 };
426
427 static const struct v4l2_subdev_ops saa7110_ops = {
428 .core = &saa7110_core_ops,
429 .video = &saa7110_video_ops,
430 };
431
432 /* ----------------------------------------------------------------------- */
433
434 static int saa7110_probe(struct i2c_client *client,
435 const struct i2c_device_id *id)
436 {
437 struct saa7110 *decoder;
438 struct v4l2_subdev *sd;
439 int rv;
440
441 /* Check if the adapter supports the needed features */
442 if (!i2c_check_functionality(client->adapter,
443 I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
444 return -ENODEV;
445
446 v4l_info(client, "chip found @ 0x%x (%s)\n",
447 client->addr << 1, client->adapter->name);
448
449 decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
450 if (!decoder)
451 return -ENOMEM;
452 sd = &decoder->sd;
453 v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
454 decoder->norm = V4L2_STD_PAL;
455 decoder->input = 0;
456 decoder->enable = 1;
457 decoder->bright = 32768;
458 decoder->contrast = 32768;
459 decoder->hue = 32768;
460 decoder->sat = 32768;
461 init_waitqueue_head(&decoder->wq);
462
463 rv = saa7110_write_block(sd, initseq, sizeof(initseq));
464 if (rv < 0) {
465 v4l2_dbg(1, debug, sd, "init status %d\n", rv);
466 } else {
467 int ver, status;
468 saa7110_write(sd, 0x21, 0x10);
469 saa7110_write(sd, 0x0e, 0x18);
470 saa7110_write(sd, 0x0D, 0x04);
471 ver = saa7110_read(sd);
472 saa7110_write(sd, 0x0D, 0x06);
473 /*mdelay(150);*/
474 status = saa7110_read(sd);
475 v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
476 ver, status);
477 saa7110_write(sd, 0x0D, 0x86);
478 saa7110_write(sd, 0x0F, 0x10);
479 saa7110_write(sd, 0x11, 0x59);
480 /*saa7110_write(sd, 0x2E, 0x9A);*/
481 }
482
483 /*saa7110_selmux(sd,0);*/
484 /*determine_norm(sd);*/
485 /* setup and implicit mode 0 select has been performed */
486
487 return 0;
488 }
489
490 static int saa7110_remove(struct i2c_client *client)
491 {
492 struct v4l2_subdev *sd = i2c_get_clientdata(client);
493
494 v4l2_device_unregister_subdev(sd);
495 kfree(to_saa7110(sd));
496 return 0;
497 }
498
499 /* ----------------------------------------------------------------------- */
500
501 static const struct i2c_device_id saa7110_id[] = {
502 { "saa7110", 0 },
503 { }
504 };
505 MODULE_DEVICE_TABLE(i2c, saa7110_id);
506
507 static struct i2c_driver saa7110_driver = {
508 .driver = {
509 .owner = THIS_MODULE,
510 .name = "saa7110",
511 },
512 .probe = saa7110_probe,
513 .remove = saa7110_remove,
514 .id_table = saa7110_id,
515 };
516
517 static __init int init_saa7110(void)
518 {
519 return i2c_add_driver(&saa7110_driver);
520 }
521
522 static __exit void exit_saa7110(void)
523 {
524 i2c_del_driver(&saa7110_driver);
525 }
526
527 module_init(init_saa7110);
528 module_exit(exit_saa7110);
Linux with added FPC-III support