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RT-AC66 3.0.0.4.374.130 core
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / media / video / cx25840 / cx25840-core.c
blob67bda9f9a44bfa48998de9f3566ef57da7222ded
1 /* cx25840 - Conexant CX25840 audio/video decoder driver
2 *
3 * Copyright (C) 2004 Ulf Eklund
4 *
5 * Based on the saa7115 driver and on the first verison of Chris Kennedy's
6 * cx25840 driver.
7 *
8 * Changes by Tyler Trafford <tatrafford@comcast.net>
9 * - cleanup/rewrite for V4L2 API (2005)
10 *
11 * VBI support by Hans Verkuil <hverkuil@xs4all.nl>.
12 *
13 * NTSC sliced VBI support by Christopher Neufeld <television@cneufeld.ca>
14 * with additional fixes by Hans Verkuil <hverkuil@xs4all.nl>.
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version 2
19 * of the License, or (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
29 */
30
31
32 #include <linux/kernel.h>
33 #include <linux/module.h>
34 #include <linux/slab.h>
35 #include <linux/videodev2.h>
36 #include <linux/i2c.h>
37 #include <media/v4l2-common.h>
38 #include <media/v4l2-chip-ident.h>
39 #include <media/cx25840.h>
40
41 #include "cx25840-core.h"
42
43 MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
44 MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford");
45 MODULE_LICENSE("GPL");
46
47 static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
48
49
50 int cx25840_debug;
51
52 module_param_named(debug,cx25840_debug, int, 0644);
53
54 MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]");
55
56 I2C_CLIENT_INSMOD;
57
58 /* ----------------------------------------------------------------------- */
59
60 int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
61 {
62 u8 buffer[3];
63 buffer[0] = addr >> 8;
64 buffer[1] = addr & 0xff;
65 buffer[2] = value;
66 return i2c_master_send(client, buffer, 3);
67 }
68
69 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
70 {
71 u8 buffer[6];
72 buffer[0] = addr >> 8;
73 buffer[1] = addr & 0xff;
74 buffer[2] = value >> 24;
75 buffer[3] = (value >> 16) & 0xff;
76 buffer[4] = (value >> 8) & 0xff;
77 buffer[5] = value & 0xff;
78 return i2c_master_send(client, buffer, 6);
79 }
80
81 u8 cx25840_read(struct i2c_client * client, u16 addr)
82 {
83 u8 buffer[2];
84 buffer[0] = addr >> 8;
85 buffer[1] = addr & 0xff;
86
87 if (i2c_master_send(client, buffer, 2) < 2)
88 return 0;
89
90 if (i2c_master_recv(client, buffer, 1) < 1)
91 return 0;
92
93 return buffer[0];
94 }
95
96 u32 cx25840_read4(struct i2c_client * client, u16 addr)
97 {
98 u8 buffer[4];
99 buffer[0] = addr >> 8;
100 buffer[1] = addr & 0xff;
101
102 if (i2c_master_send(client, buffer, 2) < 2)
103 return 0;
104
105 if (i2c_master_recv(client, buffer, 4) < 4)
106 return 0;
107
108 return (buffer[3] << 24) | (buffer[2] << 16) |
109 (buffer[1] << 8) | buffer[0];
110 }
111
112 int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned and_mask,
113 u8 or_value)
114 {
115 return cx25840_write(client, addr,
116 (cx25840_read(client, addr) & and_mask) |
117 or_value);
118 }
119
120 /* ----------------------------------------------------------------------- */
121
122 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
123 enum cx25840_audio_input aud_input);
124 static void log_audio_status(struct i2c_client *client);
125 static void log_video_status(struct i2c_client *client);
126
127 /* ----------------------------------------------------------------------- */
128
129 static void init_dll1(struct i2c_client *client)
130 {
131 /* This is the Hauppauge sequence used to
132 * initialize the Delay Lock Loop 1 (ADC DLL). */
133 cx25840_write(client, 0x159, 0x23);
134 cx25840_write(client, 0x15a, 0x87);
135 cx25840_write(client, 0x15b, 0x06);
136 cx25840_write(client, 0x159, 0xe1);
137 cx25840_write(client, 0x15a, 0x86);
138 cx25840_write(client, 0x159, 0xe0);
139 cx25840_write(client, 0x159, 0xe1);
140 cx25840_write(client, 0x15b, 0x10);
141 }
142
143 static void init_dll2(struct i2c_client *client)
144 {
145 /* This is the Hauppauge sequence used to
146 * initialize the Delay Lock Loop 2 (ADC DLL). */
147 cx25840_write(client, 0x15d, 0xe3);
148 cx25840_write(client, 0x15e, 0x86);
149 cx25840_write(client, 0x15f, 0x06);
150 cx25840_write(client, 0x15d, 0xe1);
151 cx25840_write(client, 0x15d, 0xe0);
152 cx25840_write(client, 0x15d, 0xe1);
153 }
154
155 static void cx25836_initialize(struct i2c_client *client)
156 {
157 /* reset configuration is described on page 3-77 of the CX25836 datasheet */
158 /* 2. */
159 cx25840_and_or(client, 0x000, ~0x01, 0x01);
160 cx25840_and_or(client, 0x000, ~0x01, 0x00);
161 /* 3a. */
162 cx25840_and_or(client, 0x15a, ~0x70, 0x00);
163 /* 3b. */
164 cx25840_and_or(client, 0x15b, ~0x1e, 0x06);
165 /* 3c. */
166 cx25840_and_or(client, 0x159, ~0x02, 0x02);
167 /* 3d. */
168 /* There should be a 10-us delay here, but since the
169 i2c bus already has a 10-us delay we don't need to do
170 anything */
171 /* 3e. */
172 cx25840_and_or(client, 0x159, ~0x02, 0x00);
173 /* 3f. */
174 cx25840_and_or(client, 0x159, ~0xc0, 0xc0);
175 /* 3g. */
176 cx25840_and_or(client, 0x159, ~0x01, 0x00);
177 cx25840_and_or(client, 0x159, ~0x01, 0x01);
178 /* 3h. */
179 cx25840_and_or(client, 0x15b, ~0x1e, 0x10);
180 }
181
182 static void cx25840_initialize(struct i2c_client *client, int loadfw)
183 {
184 struct cx25840_state *state = i2c_get_clientdata(client);
185
186 /* datasheet startup in numbered steps, refer to page 3-77 */
187 /* 2. */
188 cx25840_and_or(client, 0x803, ~0x10, 0x00);
189 /* The default of this register should be 4, but I get 0 instead.
190 * Set this register to 4 manually. */
191 cx25840_write(client, 0x000, 0x04);
192 /* 3. */
193 init_dll1(client);
194 init_dll2(client);
195 cx25840_write(client, 0x136, 0x0a);
196 /* 4. */
197 cx25840_write(client, 0x13c, 0x01);
198 cx25840_write(client, 0x13c, 0x00);
199 /* 5. */
200 if (loadfw)
201 cx25840_loadfw(client);
202 /* 6. */
203 cx25840_write(client, 0x115, 0x8c);
204 cx25840_write(client, 0x116, 0x07);
205 cx25840_write(client, 0x118, 0x02);
206 /* 7. */
207 cx25840_write(client, 0x4a5, 0x80);
208 cx25840_write(client, 0x4a5, 0x00);
209 cx25840_write(client, 0x402, 0x00);
210 /* 8. */
211 cx25840_and_or(client, 0x401, ~0x18, 0);
212 cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
213 /* steps 8c and 8d are done in change_input() */
214 /* 10. */
215 cx25840_write(client, 0x8d3, 0x1f);
216 cx25840_write(client, 0x8e3, 0x03);
217
218 cx25840_vbi_setup(client);
219
220 /* trial and error says these are needed to get audio */
221 cx25840_write(client, 0x914, 0xa0);
222 cx25840_write(client, 0x918, 0xa0);
223 cx25840_write(client, 0x919, 0x01);
224
225 /* stereo prefered */
226 cx25840_write(client, 0x809, 0x04);
227 /* AC97 shift */
228 cx25840_write(client, 0x8cf, 0x0f);
229
230 /* (re)set input */
231 set_input(client, state->vid_input, state->aud_input);
232
233 /* start microcontroller */
234 cx25840_and_or(client, 0x803, ~0x10, 0x10);
235 }
236
237 /* ----------------------------------------------------------------------- */
238
239 static void input_change(struct i2c_client *client)
240 {
241 struct cx25840_state *state = i2c_get_clientdata(client);
242 v4l2_std_id std = cx25840_get_v4lstd(client);
243
244 /* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */
245 if (std & V4L2_STD_SECAM) {
246 cx25840_write(client, 0x402, 0);
247 }
248 else {
249 cx25840_write(client, 0x402, 0x04);
250 cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
251 }
252 cx25840_and_or(client, 0x401, ~0x60, 0);
253 cx25840_and_or(client, 0x401, ~0x60, 0x60);
254
255 if (std & V4L2_STD_525_60) {
256 /* Certain Hauppauge PVR150 models have a hardware bug
257 that causes audio to drop out. For these models the
258 audio standard must be set explicitly.
259 To be precise: it affects cards with tuner models
260 85, 99 and 112 (model numbers from tveeprom). */
261 int hw_fix = state->pvr150_workaround;
262
263 if (std == V4L2_STD_NTSC_M_JP) {
264 /* Japan uses EIAJ audio standard */
265 cx25840_write(client, 0x808, hw_fix ? 0x2f : 0xf7);
266 } else if (std == V4L2_STD_NTSC_M_KR) {
267 /* South Korea uses A2 audio standard */
268 cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8);
269 } else {
270 /* Others use the BTSC audio standard */
271 cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
272 }
273 cx25840_write(client, 0x80b, 0x00);
274 } else if (std & V4L2_STD_PAL) {
275 /* Follow tuner change procedure for PAL */
276 cx25840_write(client, 0x808, 0xff);
277 cx25840_write(client, 0x80b, 0x10);
278 } else if (std & V4L2_STD_SECAM) {
279 /* Select autodetect for SECAM */
280 cx25840_write(client, 0x808, 0xff);
281 cx25840_write(client, 0x80b, 0x10);
282 }
283
284 if (cx25840_read(client, 0x803) & 0x10) {
285 /* restart audio decoder microcontroller */
286 cx25840_and_or(client, 0x803, ~0x10, 0x00);
287 cx25840_and_or(client, 0x803, ~0x10, 0x10);
288 }
289 }
290
291 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
292 enum cx25840_audio_input aud_input)
293 {
294 struct cx25840_state *state = i2c_get_clientdata(client);
295 u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
296 vid_input <= CX25840_COMPOSITE8);
297 u8 reg;
298
299 v4l_dbg(1, cx25840_debug, client, "decoder set video input %d, audio input %d\n",
300 vid_input, aud_input);
301
302 if (is_composite) {
303 reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
304 } else {
305 int luma = vid_input & 0xf0;
306 int chroma = vid_input & 0xf00;
307
308 if ((vid_input & ~0xff0) ||
309 luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 ||
310 chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
311 v4l_err(client, "0x%04x is not a valid video input!\n", vid_input);
312 return -EINVAL;
313 }
314 reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
315 if (chroma >= CX25840_SVIDEO_CHROMA7) {
316 reg &= 0x3f;
317 reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
318 } else {
319 reg &= 0xcf;
320 reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
321 }
322 }
323
324 switch (aud_input) {
325 case CX25840_AUDIO_SERIAL:
326 /* do nothing, use serial audio input */
327 break;
328 case CX25840_AUDIO4: reg &= ~0x30; break;
329 case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
330 case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
331 case CX25840_AUDIO7: reg &= ~0xc0; break;
332 case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
333
334 default:
335 v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input);
336 return -EINVAL;
337 }
338
339 cx25840_write(client, 0x103, reg);
340 /* Set INPUT_MODE to Composite (0) or S-Video (1) */
341 cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
342 /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
343 cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0);
344 /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
345 if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
346 cx25840_and_or(client, 0x102, ~0x4, 4);
347 else
348 cx25840_and_or(client, 0x102, ~0x4, 0);
349
350 state->vid_input = vid_input;
351 state->aud_input = aud_input;
352 if (!state->is_cx25836) {
353 cx25840_audio_set_path(client);
354 input_change(client);
355 }
356 return 0;
357 }
358
359 /* ----------------------------------------------------------------------- */
360
361 static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
362 {
363 u8 fmt=0; /* zero is autodetect */
364
365 /* First tests should be against specific std */
366 if (std == V4L2_STD_NTSC_M_JP) {
367 fmt=0x2;
368 } else if (std == V4L2_STD_NTSC_443) {
369 fmt=0x3;
370 } else if (std == V4L2_STD_PAL_M) {
371 fmt=0x5;
372 } else if (std == V4L2_STD_PAL_N) {
373 fmt=0x6;
374 } else if (std == V4L2_STD_PAL_Nc) {
375 fmt=0x7;
376 } else if (std == V4L2_STD_PAL_60) {
377 fmt=0x8;
378 } else {
379 /* Then, test against generic ones */
380 if (std & V4L2_STD_NTSC) {
381 fmt=0x1;
382 } else if (std & V4L2_STD_PAL) {
383 fmt=0x4;
384 } else if (std & V4L2_STD_SECAM) {
385 fmt=0xc;
386 }
387 }
388
389 v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt);
390
391 /* Follow step 9 of section 3.16 in the cx25840 datasheet.
392 Without this PAL may display a vertical ghosting effect.
393 This happens for example with the Yuan MPC622. */
394 if (fmt >= 4 && fmt < 8) {
395 /* Set format to NTSC-M */
396 cx25840_and_or(client, 0x400, ~0xf, 1);
397 /* Turn off LCOMB */
398 cx25840_and_or(client, 0x47b, ~6, 0);
399 }
400 cx25840_and_or(client, 0x400, ~0xf, fmt);
401 cx25840_vbi_setup(client);
402 return 0;
403 }
404
405 v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
406 {
407 struct cx25840_state *state = i2c_get_clientdata(client);
408 /* check VID_FMT_SEL first */
409 u8 fmt = cx25840_read(client, 0x400) & 0xf;
410
411 if (!fmt) {
412 /* check AFD_FMT_STAT if set to autodetect */
413 fmt = cx25840_read(client, 0x40d) & 0xf;
414 }
415
416 switch (fmt) {
417 case 0x1:
418 {
419 /* if the audio std is A2-M, then this is the South Korean
420 NTSC standard */
421 if (!state->is_cx25836 && cx25840_read(client, 0x805) == 2)
422 return V4L2_STD_NTSC_M_KR;
423 return V4L2_STD_NTSC_M;
424 }
425 case 0x2: return V4L2_STD_NTSC_M_JP;
426 case 0x3: return V4L2_STD_NTSC_443;
427 case 0x4: return V4L2_STD_PAL;
428 case 0x5: return V4L2_STD_PAL_M;
429 case 0x6: return V4L2_STD_PAL_N;
430 case 0x7: return V4L2_STD_PAL_Nc;
431 case 0x8: return V4L2_STD_PAL_60;
432 case 0xc: return V4L2_STD_SECAM;
433 default: return V4L2_STD_UNKNOWN;
434 }
435 }
436
437 /* ----------------------------------------------------------------------- */
438
439 static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
440 {
441 struct cx25840_state *state = i2c_get_clientdata(client);
442
443 switch (ctrl->id) {
444 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
445 state->pvr150_workaround = ctrl->value;
446 set_input(client, state->vid_input, state->aud_input);
447 break;
448
449 case V4L2_CID_BRIGHTNESS:
450 if (ctrl->value < 0 || ctrl->value > 255) {
451 v4l_err(client, "invalid brightness setting %d\n",
452 ctrl->value);
453 return -ERANGE;
454 }
455
456 cx25840_write(client, 0x414, ctrl->value - 128);
457 break;
458
459 case V4L2_CID_CONTRAST:
460 if (ctrl->value < 0 || ctrl->value > 127) {
461 v4l_err(client, "invalid contrast setting %d\n",
462 ctrl->value);
463 return -ERANGE;
464 }
465
466 cx25840_write(client, 0x415, ctrl->value << 1);
467 break;
468
469 case V4L2_CID_SATURATION:
470 if (ctrl->value < 0 || ctrl->value > 127) {
471 v4l_err(client, "invalid saturation setting %d\n",
472 ctrl->value);
473 return -ERANGE;
474 }
475
476 cx25840_write(client, 0x420, ctrl->value << 1);
477 cx25840_write(client, 0x421, ctrl->value << 1);
478 break;
479
480 case V4L2_CID_HUE:
481 if (ctrl->value < -127 || ctrl->value > 127) {
482 v4l_err(client, "invalid hue setting %d\n", ctrl->value);
483 return -ERANGE;
484 }
485
486 cx25840_write(client, 0x422, ctrl->value);
487 break;
488
489 case V4L2_CID_AUDIO_VOLUME:
490 case V4L2_CID_AUDIO_BASS:
491 case V4L2_CID_AUDIO_TREBLE:
492 case V4L2_CID_AUDIO_BALANCE:
493 case V4L2_CID_AUDIO_MUTE:
494 if (state->is_cx25836)
495 return -EINVAL;
496 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
497
498 default:
499 return -EINVAL;
500 }
501
502 return 0;
503 }
504
505 static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
506 {
507 struct cx25840_state *state = i2c_get_clientdata(client);
508
509 switch (ctrl->id) {
510 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
511 ctrl->value = state->pvr150_workaround;
512 break;
513 case V4L2_CID_BRIGHTNESS:
514 ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
515 break;
516 case V4L2_CID_CONTRAST:
517 ctrl->value = cx25840_read(client, 0x415) >> 1;
518 break;
519 case V4L2_CID_SATURATION:
520 ctrl->value = cx25840_read(client, 0x420) >> 1;
521 break;
522 case V4L2_CID_HUE:
523 ctrl->value = (s8)cx25840_read(client, 0x422);
524 break;
525 case V4L2_CID_AUDIO_VOLUME:
526 case V4L2_CID_AUDIO_BASS:
527 case V4L2_CID_AUDIO_TREBLE:
528 case V4L2_CID_AUDIO_BALANCE:
529 case V4L2_CID_AUDIO_MUTE:
530 if (state->is_cx25836)
531 return -EINVAL;
532 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
533 default:
534 return -EINVAL;
535 }
536
537 return 0;
538 }
539
540 /* ----------------------------------------------------------------------- */
541
542 static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
543 {
544 switch (fmt->type) {
545 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
546 return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
547 default:
548 return -EINVAL;
549 }
550
551 return 0;
552 }
553
554 static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
555 {
556 struct v4l2_pix_format *pix;
557 int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
558 int is_50Hz = !(cx25840_get_v4lstd(client) & V4L2_STD_525_60);
559
560 switch (fmt->type) {
561 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
562 pix = &(fmt->fmt.pix);
563
564 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
565 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
566
567 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
568 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
569
570 Vlines = pix->height + (is_50Hz ? 4 : 7);
571
572 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
573 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
574 v4l_err(client, "%dx%d is not a valid size!\n",
575 pix->width, pix->height);
576 return -ERANGE;
577 }
578
579 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
580 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
581 VSC &= 0x1fff;
582
583 if (pix->width >= 385)
584 filter = 0;
585 else if (pix->width > 192)
586 filter = 1;
587 else if (pix->width > 96)
588 filter = 2;
589 else
590 filter = 3;
591
592 v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale %ux%u\n",
593 pix->width, pix->height, HSC, VSC);
594
595 /* HSCALE=HSC */
596 cx25840_write(client, 0x418, HSC & 0xff);
597 cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
598 cx25840_write(client, 0x41a, HSC >> 16);
599 /* VSCALE=VSC */
600 cx25840_write(client, 0x41c, VSC & 0xff);
601 cx25840_write(client, 0x41d, VSC >> 8);
602 /* VS_INTRLACE=1 VFILT=filter */
603 cx25840_write(client, 0x41e, 0x8 | filter);
604 break;
605
606 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
607 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
608
609 case V4L2_BUF_TYPE_VBI_CAPTURE:
610 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
611
612 default:
613 return -EINVAL;
614 }
615
616 return 0;
617 }
618
619 /* ----------------------------------------------------------------------- */
620
621 static int cx25840_command(struct i2c_client *client, unsigned int cmd,
622 void *arg)
623 {
624 struct cx25840_state *state = i2c_get_clientdata(client);
625 struct v4l2_tuner *vt = arg;
626 struct v4l2_routing *route = arg;
627
628 switch (cmd) {
629 #ifdef CONFIG_VIDEO_ADV_DEBUG
630 /* ioctls to allow direct access to the
631 * cx25840 registers for testing */
632 case VIDIOC_DBG_G_REGISTER:
633 case VIDIOC_DBG_S_REGISTER:
634 {
635 struct v4l2_register *reg = arg;
636
637 if (!v4l2_chip_match_i2c_client(client, reg->match_type, reg->match_chip))
638 return -EINVAL;
639 if (!capable(CAP_SYS_ADMIN))
640 return -EPERM;
641 if (cmd == VIDIOC_DBG_G_REGISTER)
642 reg->val = cx25840_read(client, reg->reg & 0x0fff);
643 else
644 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
645 break;
646 }
647 #endif
648
649 case VIDIOC_INT_DECODE_VBI_LINE:
650 return cx25840_vbi(client, cmd, arg);
651
652 case VIDIOC_INT_AUDIO_CLOCK_FREQ:
653 return cx25840_audio(client, cmd, arg);
654
655 case VIDIOC_STREAMON:
656 v4l_dbg(1, cx25840_debug, client, "enable output\n");
657 cx25840_write(client, 0x115, state->is_cx25836 ? 0x0c : 0x8c);
658 cx25840_write(client, 0x116, state->is_cx25836 ? 0x04 : 0x07);
659 break;
660
661 case VIDIOC_STREAMOFF:
662 v4l_dbg(1, cx25840_debug, client, "disable output\n");
663 cx25840_write(client, 0x115, 0x00);
664 cx25840_write(client, 0x116, 0x00);
665 break;
666
667 case VIDIOC_LOG_STATUS:
668 log_video_status(client);
669 if (!state->is_cx25836)
670 log_audio_status(client);
671 break;
672
673 case VIDIOC_G_CTRL:
674 return get_v4lctrl(client, (struct v4l2_control *)arg);
675
676 case VIDIOC_S_CTRL:
677 return set_v4lctrl(client, (struct v4l2_control *)arg);
678
679 case VIDIOC_QUERYCTRL:
680 {
681 struct v4l2_queryctrl *qc = arg;
682
683 switch (qc->id) {
684 case V4L2_CID_BRIGHTNESS:
685 case V4L2_CID_CONTRAST:
686 case V4L2_CID_SATURATION:
687 case V4L2_CID_HUE:
688 return v4l2_ctrl_query_fill_std(qc);
689 default:
690 break;
691 }
692 if (state->is_cx25836)
693 return -EINVAL;
694
695 switch (qc->id) {
696 case V4L2_CID_AUDIO_VOLUME:
697 case V4L2_CID_AUDIO_MUTE:
698 case V4L2_CID_AUDIO_BALANCE:
699 case V4L2_CID_AUDIO_BASS:
700 case V4L2_CID_AUDIO_TREBLE:
701 return v4l2_ctrl_query_fill_std(qc);
702 default:
703 return -EINVAL;
704 }
705 return -EINVAL;
706 }
707
708 case VIDIOC_G_STD:
709 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
710 break;
711
712 case VIDIOC_S_STD:
713 state->radio = 0;
714 return set_v4lstd(client, *(v4l2_std_id *)arg);
715
716 case AUDC_SET_RADIO:
717 state->radio = 1;
718 break;
719
720 case VIDIOC_INT_G_VIDEO_ROUTING:
721 route->input = state->vid_input;
722 route->output = 0;
723 break;
724
725 case VIDIOC_INT_S_VIDEO_ROUTING:
726 return set_input(client, route->input, state->aud_input);
727
728 case VIDIOC_INT_G_AUDIO_ROUTING:
729 if (state->is_cx25836)
730 return -EINVAL;
731 route->input = state->aud_input;
732 route->output = 0;
733 break;
734
735 case VIDIOC_INT_S_AUDIO_ROUTING:
736 if (state->is_cx25836)
737 return -EINVAL;
738 return set_input(client, state->vid_input, route->input);
739
740 case VIDIOC_S_FREQUENCY:
741 if (!state->is_cx25836) {
742 input_change(client);
743 }
744 break;
745
746 case VIDIOC_G_TUNER:
747 {
748 u8 vpres = cx25840_read(client, 0x40e) & 0x20;
749 u8 mode;
750 int val = 0;
751
752 if (state->radio)
753 break;
754
755 vt->signal = vpres ? 0xffff : 0x0;
756 if (state->is_cx25836)
757 break;
758
759 vt->capability |=
760 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
761 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
762
763 mode = cx25840_read(client, 0x804);
764
765 /* get rxsubchans and audmode */
766 if ((mode & 0xf) == 1)
767 val |= V4L2_TUNER_SUB_STEREO;
768 else
769 val |= V4L2_TUNER_SUB_MONO;
770
771 if (mode == 2 || mode == 4)
772 val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
773
774 if (mode & 0x10)
775 val |= V4L2_TUNER_SUB_SAP;
776
777 vt->rxsubchans = val;
778 vt->audmode = state->audmode;
779 break;
780 }
781
782 case VIDIOC_S_TUNER:
783 if (state->radio || state->is_cx25836)
784 break;
785
786 switch (vt->audmode) {
787 case V4L2_TUNER_MODE_MONO:
788 /* mono -> mono
789 stereo -> mono
790 bilingual -> lang1 */
791 cx25840_and_or(client, 0x809, ~0xf, 0x00);
792 break;
793 case V4L2_TUNER_MODE_STEREO:
794 case V4L2_TUNER_MODE_LANG1:
795 /* mono -> mono
796 stereo -> stereo
797 bilingual -> lang1 */
798 cx25840_and_or(client, 0x809, ~0xf, 0x04);
799 break;
800 case V4L2_TUNER_MODE_LANG1_LANG2:
801 /* mono -> mono
802 stereo -> stereo
803 bilingual -> lang1/lang2 */
804 cx25840_and_or(client, 0x809, ~0xf, 0x07);
805 break;
806 case V4L2_TUNER_MODE_LANG2:
807 /* mono -> mono
808 stereo -> stereo
809 bilingual -> lang2 */
810 cx25840_and_or(client, 0x809, ~0xf, 0x01);
811 break;
812 default:
813 return -EINVAL;
814 }
815 state->audmode = vt->audmode;
816 break;
817
818 case VIDIOC_G_FMT:
819 return get_v4lfmt(client, (struct v4l2_format *)arg);
820
821 case VIDIOC_S_FMT:
822 return set_v4lfmt(client, (struct v4l2_format *)arg);
823
824 case VIDIOC_INT_RESET:
825 if (state->is_cx25836)
826 cx25836_initialize(client);
827 else
828 cx25840_initialize(client, 0);
829 break;
830
831 case VIDIOC_G_CHIP_IDENT:
832 return v4l2_chip_ident_i2c_client(client, arg, state->id, state->rev);
833
834 default:
835 return -EINVAL;
836 }
837
838 return 0;
839 }
840
841 /* ----------------------------------------------------------------------- */
842
843 static struct i2c_driver i2c_driver_cx25840;
844
845 static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
846 int kind)
847 {
848 struct i2c_client *client;
849 struct cx25840_state *state;
850 u32 id;
851 u16 device_id;
852
853 /* Check if the adapter supports the needed features
854 * Not until kernel version 2.6.11 did the bit-algo
855 * correctly report that it would do an I2C-level xfer */
856 if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
857 return 0;
858
859 state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
860 if (state == 0)
861 return -ENOMEM;
862
863 client = &state->c;
864 client->addr = address;
865 client->adapter = adapter;
866 client->driver = &i2c_driver_cx25840;
867 snprintf(client->name, sizeof(client->name) - 1, "cx25840");
868
869 v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", address << 1);
870
871 device_id = cx25840_read(client, 0x101) << 8;
872 device_id |= cx25840_read(client, 0x100);
873
874 /* The high byte of the device ID should be
875 * 0x83 for the cx2583x and 0x84 for the cx2584x */
876 if ((device_id & 0xff00) == 0x8300) {
877 id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
878 state->is_cx25836 = 1;
879 }
880 else if ((device_id & 0xff00) == 0x8400) {
881 id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
882 state->is_cx25836 = 0;
883 }
884 else {
885 v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
886 kfree(state);
887 return 0;
888 }
889
890 /* Note: revision '(device_id & 0x0f) == 2' was never built. The
891 marking skips from 0x1 == 22 to 0x3 == 23. */
892 v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
893 (device_id & 0xfff0) >> 4,
894 (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : (device_id & 0x0f),
895 address << 1, adapter->name);
896
897 i2c_set_clientdata(client, state);
898 state->vid_input = CX25840_COMPOSITE7;
899 state->aud_input = CX25840_AUDIO8;
900 state->audclk_freq = 48000;
901 state->pvr150_workaround = 0;
902 state->audmode = V4L2_TUNER_MODE_LANG1;
903 state->vbi_line_offset = 8;
904 state->id = id;
905 state->rev = device_id;
906
907 i2c_attach_client(client);
908
909 if (state->is_cx25836)
910 cx25836_initialize(client);
911 else
912 cx25840_initialize(client, 1);
913
914 return 0;
915 }
916
917 static int cx25840_attach_adapter(struct i2c_adapter *adapter)
918 {
919 if (adapter->class & I2C_CLASS_TV_ANALOG)
920 return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
921 return 0;
922 }
923
924 static int cx25840_detach_client(struct i2c_client *client)
925 {
926 struct cx25840_state *state = i2c_get_clientdata(client);
927 int err;
928
929 err = i2c_detach_client(client);
930 if (err) {
931 return err;
932 }
933
934 kfree(state);
935
936 return 0;
937 }
938
939 /* ----------------------------------------------------------------------- */
940
941 static struct i2c_driver i2c_driver_cx25840 = {
942 .driver = {
943 .name = "cx25840",
944 },
945 .id = I2C_DRIVERID_CX25840,
946 .attach_adapter = cx25840_attach_adapter,
947 .detach_client = cx25840_detach_client,
948 .command = cx25840_command,
949 };
950
951
952 static int __init m__init(void)
953 {
954 return i2c_add_driver(&i2c_driver_cx25840);
955 }
956
957 static void __exit m__exit(void)
958 {
959 i2c_del_driver(&i2c_driver_cx25840);
960 }
961
962 module_init(m__init);
963 module_exit(m__exit);
964
965 /* ----------------------------------------------------------------------- */
966
967 static void log_video_status(struct i2c_client *client)
968 {
969 static const char *const fmt_strs[] = {
970 "0x0",
971 "NTSC-M", "NTSC-J", "NTSC-4.43",
972 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
973 "0x9", "0xA", "0xB",
974 "SECAM",
975 "0xD", "0xE", "0xF"
976 };
977
978 struct cx25840_state *state = i2c_get_clientdata(client);
979 u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
980 u8 gen_stat1 = cx25840_read(client, 0x40d);
981 u8 gen_stat2 = cx25840_read(client, 0x40e);
982 int vid_input = state->vid_input;
983
984 v4l_info(client, "Video signal: %spresent\n",
985 (gen_stat2 & 0x20) ? "" : "not ");
986 v4l_info(client, "Detected format: %s\n",
987 fmt_strs[gen_stat1 & 0xf]);
988
989 v4l_info(client, "Specified standard: %s\n",
990 vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
991
992 if (vid_input >= CX25840_COMPOSITE1 &&
993 vid_input <= CX25840_COMPOSITE8) {
994 v4l_info(client, "Specified video input: Composite %d\n",
995 vid_input - CX25840_COMPOSITE1 + 1);
996 } else {
997 v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
998 (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
999 }
1000
1001 v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
1002 }
1003
1004 /* ----------------------------------------------------------------------- */
1005
1006 static void log_audio_status(struct i2c_client *client)
1007 {
1008 struct cx25840_state *state = i2c_get_clientdata(client);
1009 u8 download_ctl = cx25840_read(client, 0x803);
1010 u8 mod_det_stat0 = cx25840_read(client, 0x804);
1011 u8 mod_det_stat1 = cx25840_read(client, 0x805);
1012 u8 audio_config = cx25840_read(client, 0x808);
1013 u8 pref_mode = cx25840_read(client, 0x809);
1014 u8 afc0 = cx25840_read(client, 0x80b);
1015 u8 mute_ctl = cx25840_read(client, 0x8d3);
1016 int aud_input = state->aud_input;
1017 char *p;
1018
1019 switch (mod_det_stat0) {
1020 case 0x00: p = "mono"; break;
1021 case 0x01: p = "stereo"; break;
1022 case 0x02: p = "dual"; break;
1023 case 0x04: p = "tri"; break;
1024 case 0x10: p = "mono with SAP"; break;
1025 case 0x11: p = "stereo with SAP"; break;
1026 case 0x12: p = "dual with SAP"; break;
1027 case 0x14: p = "tri with SAP"; break;
1028 case 0xfe: p = "forced mode"; break;
1029 default: p = "not defined";
1030 }
1031 v4l_info(client, "Detected audio mode: %s\n", p);
1032
1033 switch (mod_det_stat1) {
1034 case 0x00: p = "not defined"; break;
1035 case 0x01: p = "EIAJ"; break;
1036 case 0x02: p = "A2-M"; break;
1037 case 0x03: p = "A2-BG"; break;
1038 case 0x04: p = "A2-DK1"; break;
1039 case 0x05: p = "A2-DK2"; break;
1040 case 0x06: p = "A2-DK3"; break;
1041 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
1042 case 0x08: p = "AM-L"; break;
1043 case 0x09: p = "NICAM-BG"; break;
1044 case 0x0a: p = "NICAM-DK"; break;
1045 case 0x0b: p = "NICAM-I"; break;
1046 case 0x0c: p = "NICAM-L"; break;
1047 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
1048 case 0x0e: p = "IF FM Radio"; break;
1049 case 0x0f: p = "BTSC"; break;
1050 case 0x10: p = "high-deviation FM"; break;
1051 case 0x11: p = "very high-deviation FM"; break;
1052 case 0xfd: p = "unknown audio standard"; break;
1053 case 0xfe: p = "forced audio standard"; break;
1054 case 0xff: p = "no detected audio standard"; break;
1055 default: p = "not defined";
1056 }
1057 v4l_info(client, "Detected audio standard: %s\n", p);
1058 v4l_info(client, "Audio muted: %s\n",
1059 (mute_ctl & 0x2) ? "yes" : "no");
1060 v4l_info(client, "Audio microcontroller: %s\n",
1061 (download_ctl & 0x10) ? "running" : "stopped");
1062
1063 switch (audio_config >> 4) {
1064 case 0x00: p = "undefined"; break;
1065 case 0x01: p = "BTSC"; break;
1066 case 0x02: p = "EIAJ"; break;
1067 case 0x03: p = "A2-M"; break;
1068 case 0x04: p = "A2-BG"; break;
1069 case 0x05: p = "A2-DK1"; break;
1070 case 0x06: p = "A2-DK2"; break;
1071 case 0x07: p = "A2-DK3"; break;
1072 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
1073 case 0x09: p = "AM-L"; break;
1074 case 0x0a: p = "NICAM-BG"; break;
1075 case 0x0b: p = "NICAM-DK"; break;
1076 case 0x0c: p = "NICAM-I"; break;
1077 case 0x0d: p = "NICAM-L"; break;
1078 case 0x0e: p = "FM radio"; break;
1079 case 0x0f: p = "automatic detection"; break;
1080 default: p = "undefined";
1081 }
1082 v4l_info(client, "Configured audio standard: %s\n", p);
1083
1084 if ((audio_config >> 4) < 0xF) {
1085 switch (audio_config & 0xF) {
1086 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
1087 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
1088 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
1089 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
1090 case 0x04: p = "STEREO"; break;
1091 case 0x05: p = "DUAL1 (AB)"; break;
1092 case 0x06: p = "DUAL2 (AC) (FM)"; break;
1093 case 0x07: p = "DUAL3 (BC) (FM)"; break;
1094 case 0x08: p = "DUAL4 (AC) (AM)"; break;
1095 case 0x09: p = "DUAL5 (BC) (AM)"; break;
1096 case 0x0a: p = "SAP"; break;
1097 default: p = "undefined";
1098 }
1099 v4l_info(client, "Configured audio mode: %s\n", p);
1100 } else {
1101 switch (audio_config & 0xF) {
1102 case 0x00: p = "BG"; break;
1103 case 0x01: p = "DK1"; break;
1104 case 0x02: p = "DK2"; break;
1105 case 0x03: p = "DK3"; break;
1106 case 0x04: p = "I"; break;
1107 case 0x05: p = "L"; break;
1108 case 0x06: p = "BTSC"; break;
1109 case 0x07: p = "EIAJ"; break;
1110 case 0x08: p = "A2-M"; break;
1111 case 0x09: p = "FM Radio"; break;
1112 case 0x0f: p = "automatic standard and mode detection"; break;
1113 default: p = "undefined";
1114 }
1115 v4l_info(client, "Configured audio system: %s\n", p);
1116 }
1117
1118 if (aud_input) {
1119 v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input);
1120 } else {
1121 v4l_info(client, "Specified audio input: External\n");
1122 }
1123
1124 switch (pref_mode & 0xf) {
1125 case 0: p = "mono/language A"; break;
1126 case 1: p = "language B"; break;
1127 case 2: p = "language C"; break;
1128 case 3: p = "analog fallback"; break;
1129 case 4: p = "stereo"; break;
1130 case 5: p = "language AC"; break;
1131 case 6: p = "language BC"; break;
1132 case 7: p = "language AB"; break;
1133 default: p = "undefined";
1134 }
1135 v4l_info(client, "Preferred audio mode: %s\n", p);
1136
1137 if ((audio_config & 0xf) == 0xf) {
1138 switch ((afc0 >> 3) & 0x3) {
1139 case 0: p = "system DK"; break;
1140 case 1: p = "system L"; break;
1141 case 2: p = "autodetect"; break;
1142 default: p = "undefined";
1143 }
1144 v4l_info(client, "Selected 65 MHz format: %s\n", p);
1145
1146 switch (afc0 & 0x7) {
1147 case 0: p = "chroma"; break;
1148 case 1: p = "BTSC"; break;
1149 case 2: p = "EIAJ"; break;
1150 case 3: p = "A2-M"; break;
1151 case 4: p = "autodetect"; break;
1152 default: p = "undefined";
1153 }
1154 v4l_info(client, "Selected 45 MHz format: %s\n", p);
1155 }
1156 }
Tomato firmware and modifications.