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V4L/DVB (6006): tuner: move last_div to tuner-simple private data
[wrt350n-kernel.git] / drivers / media / video / cx25840 / cx25840-core.c
blob8f9c32613b45151b4951b19e4d246385608acb07
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)
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 cx25840_loadfw(client);
201 /* 6. */
202 cx25840_write(client, 0x115, 0x8c);
203 cx25840_write(client, 0x116, 0x07);
204 cx25840_write(client, 0x118, 0x02);
205 /* 7. */
206 cx25840_write(client, 0x4a5, 0x80);
207 cx25840_write(client, 0x4a5, 0x00);
208 cx25840_write(client, 0x402, 0x00);
209 /* 8. */
210 cx25840_and_or(client, 0x401, ~0x18, 0);
211 cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
212 /* steps 8c and 8d are done in change_input() */
213 /* 10. */
214 cx25840_write(client, 0x8d3, 0x1f);
215 cx25840_write(client, 0x8e3, 0x03);
216
217 cx25840_vbi_setup(client);
218
219 /* trial and error says these are needed to get audio */
220 cx25840_write(client, 0x914, 0xa0);
221 cx25840_write(client, 0x918, 0xa0);
222 cx25840_write(client, 0x919, 0x01);
223
224 /* stereo prefered */
225 cx25840_write(client, 0x809, 0x04);
226 /* AC97 shift */
227 cx25840_write(client, 0x8cf, 0x0f);
228
229 /* (re)set input */
230 set_input(client, state->vid_input, state->aud_input);
231
232 /* start microcontroller */
233 cx25840_and_or(client, 0x803, ~0x10, 0x10);
234 }
235
236 /* ----------------------------------------------------------------------- */
237
238 static void input_change(struct i2c_client *client)
239 {
240 struct cx25840_state *state = i2c_get_clientdata(client);
241 v4l2_std_id std = cx25840_get_v4lstd(client);
242
243 /* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */
244 if (std & V4L2_STD_SECAM) {
245 cx25840_write(client, 0x402, 0);
246 }
247 else {
248 cx25840_write(client, 0x402, 0x04);
249 cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
250 }
251 cx25840_and_or(client, 0x401, ~0x60, 0);
252 cx25840_and_or(client, 0x401, ~0x60, 0x60);
253
254 if (state->radio) {
255 cx25840_write(client, 0x808, 0xf9);
256 cx25840_write(client, 0x80b, 0x00);
257 }
258 else if (std & V4L2_STD_525_60) {
259 /* Certain Hauppauge PVR150 models have a hardware bug
260 that causes audio to drop out. For these models the
261 audio standard must be set explicitly.
262 To be precise: it affects cards with tuner models
263 85, 99 and 112 (model numbers from tveeprom). */
264 int hw_fix = state->pvr150_workaround;
265
266 if (std == V4L2_STD_NTSC_M_JP) {
267 /* Japan uses EIAJ audio standard */
268 cx25840_write(client, 0x808, hw_fix ? 0x2f : 0xf7);
269 } else if (std == V4L2_STD_NTSC_M_KR) {
270 /* South Korea uses A2 audio standard */
271 cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8);
272 } else {
273 /* Others use the BTSC audio standard */
274 cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
275 }
276 cx25840_write(client, 0x80b, 0x00);
277 } else if (std & V4L2_STD_PAL) {
278 /* Follow tuner change procedure for PAL */
279 cx25840_write(client, 0x808, 0xff);
280 cx25840_write(client, 0x80b, 0x10);
281 } else if (std & V4L2_STD_SECAM) {
282 /* Select autodetect for SECAM */
283 cx25840_write(client, 0x808, 0xff);
284 cx25840_write(client, 0x80b, 0x10);
285 }
286
287 if (cx25840_read(client, 0x803) & 0x10) {
288 /* restart audio decoder microcontroller */
289 cx25840_and_or(client, 0x803, ~0x10, 0x00);
290 cx25840_and_or(client, 0x803, ~0x10, 0x10);
291 }
292 }
293
294 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
295 enum cx25840_audio_input aud_input)
296 {
297 struct cx25840_state *state = i2c_get_clientdata(client);
298 u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
299 vid_input <= CX25840_COMPOSITE8);
300 u8 reg;
301
302 v4l_dbg(1, cx25840_debug, client, "decoder set video input %d, audio input %d\n",
303 vid_input, aud_input);
304
305 if (is_composite) {
306 reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
307 } else {
308 int luma = vid_input & 0xf0;
309 int chroma = vid_input & 0xf00;
310
311 if ((vid_input & ~0xff0) ||
312 luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 ||
313 chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
314 v4l_err(client, "0x%04x is not a valid video input!\n", vid_input);
315 return -EINVAL;
316 }
317 reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
318 if (chroma >= CX25840_SVIDEO_CHROMA7) {
319 reg &= 0x3f;
320 reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
321 } else {
322 reg &= 0xcf;
323 reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
324 }
325 }
326
327 switch (aud_input) {
328 case CX25840_AUDIO_SERIAL:
329 /* do nothing, use serial audio input */
330 break;
331 case CX25840_AUDIO4: reg &= ~0x30; break;
332 case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
333 case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
334 case CX25840_AUDIO7: reg &= ~0xc0; break;
335 case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
336
337 default:
338 v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input);
339 return -EINVAL;
340 }
341
342 cx25840_write(client, 0x103, reg);
343 /* Set INPUT_MODE to Composite (0) or S-Video (1) */
344 cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
345 /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
346 cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0);
347 /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
348 if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
349 cx25840_and_or(client, 0x102, ~0x4, 4);
350 else
351 cx25840_and_or(client, 0x102, ~0x4, 0);
352
353 state->vid_input = vid_input;
354 state->aud_input = aud_input;
355 if (!state->is_cx25836) {
356 cx25840_audio_set_path(client);
357 input_change(client);
358 }
359 return 0;
360 }
361
362 /* ----------------------------------------------------------------------- */
363
364 static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
365 {
366 u8 fmt=0; /* zero is autodetect */
367
368 /* First tests should be against specific std */
369 if (std == V4L2_STD_NTSC_M_JP) {
370 fmt=0x2;
371 } else if (std == V4L2_STD_NTSC_443) {
372 fmt=0x3;
373 } else if (std == V4L2_STD_PAL_M) {
374 fmt=0x5;
375 } else if (std == V4L2_STD_PAL_N) {
376 fmt=0x6;
377 } else if (std == V4L2_STD_PAL_Nc) {
378 fmt=0x7;
379 } else if (std == V4L2_STD_PAL_60) {
380 fmt=0x8;
381 } else {
382 /* Then, test against generic ones */
383 if (std & V4L2_STD_NTSC) {
384 fmt=0x1;
385 } else if (std & V4L2_STD_PAL) {
386 fmt=0x4;
387 } else if (std & V4L2_STD_SECAM) {
388 fmt=0xc;
389 }
390 }
391
392 v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt);
393
394 /* Follow step 9 of section 3.16 in the cx25840 datasheet.
395 Without this PAL may display a vertical ghosting effect.
396 This happens for example with the Yuan MPC622. */
397 if (fmt >= 4 && fmt < 8) {
398 /* Set format to NTSC-M */
399 cx25840_and_or(client, 0x400, ~0xf, 1);
400 /* Turn off LCOMB */
401 cx25840_and_or(client, 0x47b, ~6, 0);
402 }
403 cx25840_and_or(client, 0x400, ~0xf, fmt);
404 cx25840_vbi_setup(client);
405 return 0;
406 }
407
408 v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
409 {
410 struct cx25840_state *state = i2c_get_clientdata(client);
411 /* check VID_FMT_SEL first */
412 u8 fmt = cx25840_read(client, 0x400) & 0xf;
413
414 if (!fmt) {
415 /* check AFD_FMT_STAT if set to autodetect */
416 fmt = cx25840_read(client, 0x40d) & 0xf;
417 }
418
419 switch (fmt) {
420 case 0x1:
421 {
422 /* if the audio std is A2-M, then this is the South Korean
423 NTSC standard */
424 if (!state->is_cx25836 && cx25840_read(client, 0x805) == 2)
425 return V4L2_STD_NTSC_M_KR;
426 return V4L2_STD_NTSC_M;
427 }
428 case 0x2: return V4L2_STD_NTSC_M_JP;
429 case 0x3: return V4L2_STD_NTSC_443;
430 case 0x4: return V4L2_STD_PAL;
431 case 0x5: return V4L2_STD_PAL_M;
432 case 0x6: return V4L2_STD_PAL_N;
433 case 0x7: return V4L2_STD_PAL_Nc;
434 case 0x8: return V4L2_STD_PAL_60;
435 case 0xc: return V4L2_STD_SECAM;
436 default: return V4L2_STD_UNKNOWN;
437 }
438 }
439
440 /* ----------------------------------------------------------------------- */
441
442 static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
443 {
444 struct cx25840_state *state = i2c_get_clientdata(client);
445
446 switch (ctrl->id) {
447 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
448 state->pvr150_workaround = ctrl->value;
449 set_input(client, state->vid_input, state->aud_input);
450 break;
451
452 case V4L2_CID_BRIGHTNESS:
453 if (ctrl->value < 0 || ctrl->value > 255) {
454 v4l_err(client, "invalid brightness setting %d\n",
455 ctrl->value);
456 return -ERANGE;
457 }
458
459 cx25840_write(client, 0x414, ctrl->value - 128);
460 break;
461
462 case V4L2_CID_CONTRAST:
463 if (ctrl->value < 0 || ctrl->value > 127) {
464 v4l_err(client, "invalid contrast setting %d\n",
465 ctrl->value);
466 return -ERANGE;
467 }
468
469 cx25840_write(client, 0x415, ctrl->value << 1);
470 break;
471
472 case V4L2_CID_SATURATION:
473 if (ctrl->value < 0 || ctrl->value > 127) {
474 v4l_err(client, "invalid saturation setting %d\n",
475 ctrl->value);
476 return -ERANGE;
477 }
478
479 cx25840_write(client, 0x420, ctrl->value << 1);
480 cx25840_write(client, 0x421, ctrl->value << 1);
481 break;
482
483 case V4L2_CID_HUE:
484 if (ctrl->value < -127 || ctrl->value > 127) {
485 v4l_err(client, "invalid hue setting %d\n", ctrl->value);
486 return -ERANGE;
487 }
488
489 cx25840_write(client, 0x422, ctrl->value);
490 break;
491
492 case V4L2_CID_AUDIO_VOLUME:
493 case V4L2_CID_AUDIO_BASS:
494 case V4L2_CID_AUDIO_TREBLE:
495 case V4L2_CID_AUDIO_BALANCE:
496 case V4L2_CID_AUDIO_MUTE:
497 if (state->is_cx25836)
498 return -EINVAL;
499 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
500
501 default:
502 return -EINVAL;
503 }
504
505 return 0;
506 }
507
508 static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
509 {
510 struct cx25840_state *state = i2c_get_clientdata(client);
511
512 switch (ctrl->id) {
513 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
514 ctrl->value = state->pvr150_workaround;
515 break;
516 case V4L2_CID_BRIGHTNESS:
517 ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
518 break;
519 case V4L2_CID_CONTRAST:
520 ctrl->value = cx25840_read(client, 0x415) >> 1;
521 break;
522 case V4L2_CID_SATURATION:
523 ctrl->value = cx25840_read(client, 0x420) >> 1;
524 break;
525 case V4L2_CID_HUE:
526 ctrl->value = (s8)cx25840_read(client, 0x422);
527 break;
528 case V4L2_CID_AUDIO_VOLUME:
529 case V4L2_CID_AUDIO_BASS:
530 case V4L2_CID_AUDIO_TREBLE:
531 case V4L2_CID_AUDIO_BALANCE:
532 case V4L2_CID_AUDIO_MUTE:
533 if (state->is_cx25836)
534 return -EINVAL;
535 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
536 default:
537 return -EINVAL;
538 }
539
540 return 0;
541 }
542
543 /* ----------------------------------------------------------------------- */
544
545 static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
546 {
547 switch (fmt->type) {
548 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
549 return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
550 default:
551 return -EINVAL;
552 }
553
554 return 0;
555 }
556
557 static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
558 {
559 struct v4l2_pix_format *pix;
560 int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
561 int is_50Hz = !(cx25840_get_v4lstd(client) & V4L2_STD_525_60);
562
563 switch (fmt->type) {
564 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
565 pix = &(fmt->fmt.pix);
566
567 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
568 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
569
570 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
571 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
572
573 Vlines = pix->height + (is_50Hz ? 4 : 7);
574
575 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
576 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
577 v4l_err(client, "%dx%d is not a valid size!\n",
578 pix->width, pix->height);
579 return -ERANGE;
580 }
581
582 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
583 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
584 VSC &= 0x1fff;
585
586 if (pix->width >= 385)
587 filter = 0;
588 else if (pix->width > 192)
589 filter = 1;
590 else if (pix->width > 96)
591 filter = 2;
592 else
593 filter = 3;
594
595 v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale %ux%u\n",
596 pix->width, pix->height, HSC, VSC);
597
598 /* HSCALE=HSC */
599 cx25840_write(client, 0x418, HSC & 0xff);
600 cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
601 cx25840_write(client, 0x41a, HSC >> 16);
602 /* VSCALE=VSC */
603 cx25840_write(client, 0x41c, VSC & 0xff);
604 cx25840_write(client, 0x41d, VSC >> 8);
605 /* VS_INTRLACE=1 VFILT=filter */
606 cx25840_write(client, 0x41e, 0x8 | filter);
607 break;
608
609 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
610 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
611
612 case V4L2_BUF_TYPE_VBI_CAPTURE:
613 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
614
615 default:
616 return -EINVAL;
617 }
618
619 return 0;
620 }
621
622 /* ----------------------------------------------------------------------- */
623
624 static int cx25840_command(struct i2c_client *client, unsigned int cmd,
625 void *arg)
626 {
627 struct cx25840_state *state = i2c_get_clientdata(client);
628 struct v4l2_tuner *vt = arg;
629 struct v4l2_routing *route = arg;
630
631 /* ignore these commands */
632 switch (cmd) {
633 case TUNER_SET_TYPE_ADDR:
634 return 0;
635 }
636
637 if (!state->is_initialized) {
638 v4l_dbg(1, cx25840_debug, client, "cmd %08x triggered fw load\n", cmd);
639 /* initialize on first use */
640 state->is_initialized = 1;
641 if (state->is_cx25836)
642 cx25836_initialize(client);
643 else
644 cx25840_initialize(client);
645 }
646
647 switch (cmd) {
648 #ifdef CONFIG_VIDEO_ADV_DEBUG
649 /* ioctls to allow direct access to the
650 * cx25840 registers for testing */
651 case VIDIOC_DBG_G_REGISTER:
652 case VIDIOC_DBG_S_REGISTER:
653 {
654 struct v4l2_register *reg = arg;
655
656 if (!v4l2_chip_match_i2c_client(client, reg->match_type, reg->match_chip))
657 return -EINVAL;
658 if (!capable(CAP_SYS_ADMIN))
659 return -EPERM;
660 if (cmd == VIDIOC_DBG_G_REGISTER)
661 reg->val = cx25840_read(client, reg->reg & 0x0fff);
662 else
663 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
664 break;
665 }
666 #endif
667
668 case VIDIOC_INT_DECODE_VBI_LINE:
669 return cx25840_vbi(client, cmd, arg);
670
671 case VIDIOC_INT_AUDIO_CLOCK_FREQ:
672 return cx25840_audio(client, cmd, arg);
673
674 case VIDIOC_STREAMON:
675 v4l_dbg(1, cx25840_debug, client, "enable output\n");
676 cx25840_write(client, 0x115, state->is_cx25836 ? 0x0c : 0x8c);
677 cx25840_write(client, 0x116, state->is_cx25836 ? 0x04 : 0x07);
678 break;
679
680 case VIDIOC_STREAMOFF:
681 v4l_dbg(1, cx25840_debug, client, "disable output\n");
682 cx25840_write(client, 0x115, 0x00);
683 cx25840_write(client, 0x116, 0x00);
684 break;
685
686 case VIDIOC_LOG_STATUS:
687 log_video_status(client);
688 if (!state->is_cx25836)
689 log_audio_status(client);
690 break;
691
692 case VIDIOC_G_CTRL:
693 return get_v4lctrl(client, (struct v4l2_control *)arg);
694
695 case VIDIOC_S_CTRL:
696 return set_v4lctrl(client, (struct v4l2_control *)arg);
697
698 case VIDIOC_QUERYCTRL:
699 {
700 struct v4l2_queryctrl *qc = arg;
701
702 switch (qc->id) {
703 case V4L2_CID_BRIGHTNESS:
704 case V4L2_CID_CONTRAST:
705 case V4L2_CID_SATURATION:
706 case V4L2_CID_HUE:
707 return v4l2_ctrl_query_fill_std(qc);
708 default:
709 break;
710 }
711 if (state->is_cx25836)
712 return -EINVAL;
713
714 switch (qc->id) {
715 case V4L2_CID_AUDIO_VOLUME:
716 case V4L2_CID_AUDIO_MUTE:
717 case V4L2_CID_AUDIO_BALANCE:
718 case V4L2_CID_AUDIO_BASS:
719 case V4L2_CID_AUDIO_TREBLE:
720 return v4l2_ctrl_query_fill_std(qc);
721 default:
722 return -EINVAL;
723 }
724 return -EINVAL;
725 }
726
727 case VIDIOC_G_STD:
728 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
729 break;
730
731 case VIDIOC_S_STD:
732 state->radio = 0;
733 return set_v4lstd(client, *(v4l2_std_id *)arg);
734
735 case AUDC_SET_RADIO:
736 state->radio = 1;
737 break;
738
739 case VIDIOC_INT_G_VIDEO_ROUTING:
740 route->input = state->vid_input;
741 route->output = 0;
742 break;
743
744 case VIDIOC_INT_S_VIDEO_ROUTING:
745 return set_input(client, route->input, state->aud_input);
746
747 case VIDIOC_INT_G_AUDIO_ROUTING:
748 if (state->is_cx25836)
749 return -EINVAL;
750 route->input = state->aud_input;
751 route->output = 0;
752 break;
753
754 case VIDIOC_INT_S_AUDIO_ROUTING:
755 if (state->is_cx25836)
756 return -EINVAL;
757 return set_input(client, state->vid_input, route->input);
758
759 case VIDIOC_S_FREQUENCY:
760 if (!state->is_cx25836) {
761 input_change(client);
762 }
763 break;
764
765 case VIDIOC_G_TUNER:
766 {
767 u8 vpres = cx25840_read(client, 0x40e) & 0x20;
768 u8 mode;
769 int val = 0;
770
771 if (state->radio)
772 break;
773
774 vt->signal = vpres ? 0xffff : 0x0;
775 if (state->is_cx25836)
776 break;
777
778 vt->capability |=
779 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
780 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
781
782 mode = cx25840_read(client, 0x804);
783
784 /* get rxsubchans and audmode */
785 if ((mode & 0xf) == 1)
786 val |= V4L2_TUNER_SUB_STEREO;
787 else
788 val |= V4L2_TUNER_SUB_MONO;
789
790 if (mode == 2 || mode == 4)
791 val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
792
793 if (mode & 0x10)
794 val |= V4L2_TUNER_SUB_SAP;
795
796 vt->rxsubchans = val;
797 vt->audmode = state->audmode;
798 break;
799 }
800
801 case VIDIOC_S_TUNER:
802 if (state->radio || state->is_cx25836)
803 break;
804
805 switch (vt->audmode) {
806 case V4L2_TUNER_MODE_MONO:
807 /* mono -> mono
808 stereo -> mono
809 bilingual -> lang1 */
810 cx25840_and_or(client, 0x809, ~0xf, 0x00);
811 break;
812 case V4L2_TUNER_MODE_STEREO:
813 case V4L2_TUNER_MODE_LANG1:
814 /* mono -> mono
815 stereo -> stereo
816 bilingual -> lang1 */
817 cx25840_and_or(client, 0x809, ~0xf, 0x04);
818 break;
819 case V4L2_TUNER_MODE_LANG1_LANG2:
820 /* mono -> mono
821 stereo -> stereo
822 bilingual -> lang1/lang2 */
823 cx25840_and_or(client, 0x809, ~0xf, 0x07);
824 break;
825 case V4L2_TUNER_MODE_LANG2:
826 /* mono -> mono
827 stereo -> stereo
828 bilingual -> lang2 */
829 cx25840_and_or(client, 0x809, ~0xf, 0x01);
830 break;
831 default:
832 return -EINVAL;
833 }
834 state->audmode = vt->audmode;
835 break;
836
837 case VIDIOC_G_FMT:
838 return get_v4lfmt(client, (struct v4l2_format *)arg);
839
840 case VIDIOC_S_FMT:
841 return set_v4lfmt(client, (struct v4l2_format *)arg);
842
843 case VIDIOC_INT_RESET:
844 if (state->is_cx25836)
845 cx25836_initialize(client);
846 else
847 cx25840_initialize(client);
848 break;
849
850 case VIDIOC_G_CHIP_IDENT:
851 return v4l2_chip_ident_i2c_client(client, arg, state->id, state->rev);
852
853 default:
854 return -EINVAL;
855 }
856
857 return 0;
858 }
859
860 /* ----------------------------------------------------------------------- */
861
862 static struct i2c_driver i2c_driver_cx25840;
863
864 static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
865 int kind)
866 {
867 struct i2c_client *client;
868 struct cx25840_state *state;
869 u32 id;
870 u16 device_id;
871
872 /* Check if the adapter supports the needed features
873 * Not until kernel version 2.6.11 did the bit-algo
874 * correctly report that it would do an I2C-level xfer */
875 if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
876 return 0;
877
878 state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
879 if (state == 0)
880 return -ENOMEM;
881
882 client = &state->c;
883 client->addr = address;
884 client->adapter = adapter;
885 client->driver = &i2c_driver_cx25840;
886 snprintf(client->name, sizeof(client->name) - 1, "cx25840");
887
888 v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", address << 1);
889
890 device_id = cx25840_read(client, 0x101) << 8;
891 device_id |= cx25840_read(client, 0x100);
892
893 /* The high byte of the device ID should be
894 * 0x83 for the cx2583x and 0x84 for the cx2584x */
895 if ((device_id & 0xff00) == 0x8300) {
896 id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
897 state->is_cx25836 = 1;
898 }
899 else if ((device_id & 0xff00) == 0x8400) {
900 id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
901 state->is_cx25836 = 0;
902 }
903 else {
904 v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
905 kfree(state);
906 return 0;
907 }
908
909 /* Note: revision '(device_id & 0x0f) == 2' was never built. The
910 marking skips from 0x1 == 22 to 0x3 == 23. */
911 v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
912 (device_id & 0xfff0) >> 4,
913 (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : (device_id & 0x0f),
914 address << 1, adapter->name);
915
916 i2c_set_clientdata(client, state);
917 state->vid_input = CX25840_COMPOSITE7;
918 state->aud_input = CX25840_AUDIO8;
919 state->audclk_freq = 48000;
920 state->pvr150_workaround = 0;
921 state->audmode = V4L2_TUNER_MODE_LANG1;
922 state->unmute_volume = -1;
923 state->vbi_line_offset = 8;
924 state->id = id;
925 state->rev = device_id;
926
927 i2c_attach_client(client);
928
929 return 0;
930 }
931
932 static int cx25840_attach_adapter(struct i2c_adapter *adapter)
933 {
934 if (adapter->class & I2C_CLASS_TV_ANALOG)
935 return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
936 return 0;
937 }
938
939 static int cx25840_detach_client(struct i2c_client *client)
940 {
941 struct cx25840_state *state = i2c_get_clientdata(client);
942 int err;
943
944 err = i2c_detach_client(client);
945 if (err) {
946 return err;
947 }
948
949 kfree(state);
950
951 return 0;
952 }
953
954 /* ----------------------------------------------------------------------- */
955
956 static struct i2c_driver i2c_driver_cx25840 = {
957 .driver = {
958 .name = "cx25840",
959 },
960 .id = I2C_DRIVERID_CX25840,
961 .attach_adapter = cx25840_attach_adapter,
962 .detach_client = cx25840_detach_client,
963 .command = cx25840_command,
964 };
965
966
967 static int __init m__init(void)
968 {
969 return i2c_add_driver(&i2c_driver_cx25840);
970 }
971
972 static void __exit m__exit(void)
973 {
974 i2c_del_driver(&i2c_driver_cx25840);
975 }
976
977 module_init(m__init);
978 module_exit(m__exit);
979
980 /* ----------------------------------------------------------------------- */
981
982 static void log_video_status(struct i2c_client *client)
983 {
984 static const char *const fmt_strs[] = {
985 "0x0",
986 "NTSC-M", "NTSC-J", "NTSC-4.43",
987 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
988 "0x9", "0xA", "0xB",
989 "SECAM",
990 "0xD", "0xE", "0xF"
991 };
992
993 struct cx25840_state *state = i2c_get_clientdata(client);
994 u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
995 u8 gen_stat1 = cx25840_read(client, 0x40d);
996 u8 gen_stat2 = cx25840_read(client, 0x40e);
997 int vid_input = state->vid_input;
998
999 v4l_info(client, "Video signal: %spresent\n",
1000 (gen_stat2 & 0x20) ? "" : "not ");
1001 v4l_info(client, "Detected format: %s\n",
1002 fmt_strs[gen_stat1 & 0xf]);
1003
1004 v4l_info(client, "Specified standard: %s\n",
1005 vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
1006
1007 if (vid_input >= CX25840_COMPOSITE1 &&
1008 vid_input <= CX25840_COMPOSITE8) {
1009 v4l_info(client, "Specified video input: Composite %d\n",
1010 vid_input - CX25840_COMPOSITE1 + 1);
1011 } else {
1012 v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
1013 (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
1014 }
1015
1016 v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
1017 }
1018
1019 /* ----------------------------------------------------------------------- */
1020
1021 static void log_audio_status(struct i2c_client *client)
1022 {
1023 struct cx25840_state *state = i2c_get_clientdata(client);
1024 u8 download_ctl = cx25840_read(client, 0x803);
1025 u8 mod_det_stat0 = cx25840_read(client, 0x804);
1026 u8 mod_det_stat1 = cx25840_read(client, 0x805);
1027 u8 audio_config = cx25840_read(client, 0x808);
1028 u8 pref_mode = cx25840_read(client, 0x809);
1029 u8 afc0 = cx25840_read(client, 0x80b);
1030 u8 mute_ctl = cx25840_read(client, 0x8d3);
1031 int aud_input = state->aud_input;
1032 char *p;
1033
1034 switch (mod_det_stat0) {
1035 case 0x00: p = "mono"; break;
1036 case 0x01: p = "stereo"; break;
1037 case 0x02: p = "dual"; break;
1038 case 0x04: p = "tri"; break;
1039 case 0x10: p = "mono with SAP"; break;
1040 case 0x11: p = "stereo with SAP"; break;
1041 case 0x12: p = "dual with SAP"; break;
1042 case 0x14: p = "tri with SAP"; break;
1043 case 0xfe: p = "forced mode"; break;
1044 default: p = "not defined";
1045 }
1046 v4l_info(client, "Detected audio mode: %s\n", p);
1047
1048 switch (mod_det_stat1) {
1049 case 0x00: p = "not defined"; break;
1050 case 0x01: p = "EIAJ"; break;
1051 case 0x02: p = "A2-M"; break;
1052 case 0x03: p = "A2-BG"; break;
1053 case 0x04: p = "A2-DK1"; break;
1054 case 0x05: p = "A2-DK2"; break;
1055 case 0x06: p = "A2-DK3"; break;
1056 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
1057 case 0x08: p = "AM-L"; break;
1058 case 0x09: p = "NICAM-BG"; break;
1059 case 0x0a: p = "NICAM-DK"; break;
1060 case 0x0b: p = "NICAM-I"; break;
1061 case 0x0c: p = "NICAM-L"; break;
1062 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
1063 case 0x0e: p = "IF FM Radio"; break;
1064 case 0x0f: p = "BTSC"; break;
1065 case 0x10: p = "high-deviation FM"; break;
1066 case 0x11: p = "very high-deviation FM"; break;
1067 case 0xfd: p = "unknown audio standard"; break;
1068 case 0xfe: p = "forced audio standard"; break;
1069 case 0xff: p = "no detected audio standard"; break;
1070 default: p = "not defined";
1071 }
1072 v4l_info(client, "Detected audio standard: %s\n", p);
1073 v4l_info(client, "Audio muted: %s\n",
1074 (state->unmute_volume >= 0) ? "yes" : "no");
1075 v4l_info(client, "Audio microcontroller: %s\n",
1076 (download_ctl & 0x10) ?
1077 ((mute_ctl & 0x2) ? "detecting" : "running") : "stopped");
1078
1079 switch (audio_config >> 4) {
1080 case 0x00: p = "undefined"; break;
1081 case 0x01: p = "BTSC"; break;
1082 case 0x02: p = "EIAJ"; break;
1083 case 0x03: p = "A2-M"; break;
1084 case 0x04: p = "A2-BG"; break;
1085 case 0x05: p = "A2-DK1"; break;
1086 case 0x06: p = "A2-DK2"; break;
1087 case 0x07: p = "A2-DK3"; break;
1088 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
1089 case 0x09: p = "AM-L"; break;
1090 case 0x0a: p = "NICAM-BG"; break;
1091 case 0x0b: p = "NICAM-DK"; break;
1092 case 0x0c: p = "NICAM-I"; break;
1093 case 0x0d: p = "NICAM-L"; break;
1094 case 0x0e: p = "FM radio"; break;
1095 case 0x0f: p = "automatic detection"; break;
1096 default: p = "undefined";
1097 }
1098 v4l_info(client, "Configured audio standard: %s\n", p);
1099
1100 if ((audio_config >> 4) < 0xF) {
1101 switch (audio_config & 0xF) {
1102 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
1103 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
1104 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
1105 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
1106 case 0x04: p = "STEREO"; break;
1107 case 0x05: p = "DUAL1 (AB)"; break;
1108 case 0x06: p = "DUAL2 (AC) (FM)"; break;
1109 case 0x07: p = "DUAL3 (BC) (FM)"; break;
1110 case 0x08: p = "DUAL4 (AC) (AM)"; break;
1111 case 0x09: p = "DUAL5 (BC) (AM)"; break;
1112 case 0x0a: p = "SAP"; break;
1113 default: p = "undefined";
1114 }
1115 v4l_info(client, "Configured audio mode: %s\n", p);
1116 } else {
1117 switch (audio_config & 0xF) {
1118 case 0x00: p = "BG"; break;
1119 case 0x01: p = "DK1"; break;
1120 case 0x02: p = "DK2"; break;
1121 case 0x03: p = "DK3"; break;
1122 case 0x04: p = "I"; break;
1123 case 0x05: p = "L"; break;
1124 case 0x06: p = "BTSC"; break;
1125 case 0x07: p = "EIAJ"; break;
1126 case 0x08: p = "A2-M"; break;
1127 case 0x09: p = "FM Radio"; break;
1128 case 0x0f: p = "automatic standard and mode detection"; break;
1129 default: p = "undefined";
1130 }
1131 v4l_info(client, "Configured audio system: %s\n", p);
1132 }
1133
1134 if (aud_input) {
1135 v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input);
1136 } else {
1137 v4l_info(client, "Specified audio input: External\n");
1138 }
1139
1140 switch (pref_mode & 0xf) {
1141 case 0: p = "mono/language A"; break;
1142 case 1: p = "language B"; break;
1143 case 2: p = "language C"; break;
1144 case 3: p = "analog fallback"; break;
1145 case 4: p = "stereo"; break;
1146 case 5: p = "language AC"; break;
1147 case 6: p = "language BC"; break;
1148 case 7: p = "language AB"; break;
1149 default: p = "undefined";
1150 }
1151 v4l_info(client, "Preferred audio mode: %s\n", p);
1152
1153 if ((audio_config & 0xf) == 0xf) {
1154 switch ((afc0 >> 3) & 0x3) {
1155 case 0: p = "system DK"; break;
1156 case 1: p = "system L"; break;
1157 case 2: p = "autodetect"; break;
1158 default: p = "undefined";
1159 }
1160 v4l_info(client, "Selected 65 MHz format: %s\n", p);
1161
1162 switch (afc0 & 0x7) {
1163 case 0: p = "chroma"; break;
1164 case 1: p = "BTSC"; break;
1165 case 2: p = "EIAJ"; break;
1166 case 3: p = "A2-M"; break;
1167 case 4: p = "autodetect"; break;
1168 default: p = "undefined";
1169 }
1170 v4l_info(client, "Selected 45 MHz format: %s\n", p);
1171 }
1172 }
WRT350N Kernel Patches