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