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Linux 2.6.17.7
[linux/fpc-iii.git] / drivers / media / video / cx25840 / cx25840-core.c
bloba961bb2ab0fdcda188618a19ba99dfedc7aab747
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 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26 */
27
28
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/slab.h>
32 #include <linux/videodev2.h>
33 #include <linux/i2c.h>
34 #include <media/v4l2-common.h>
35 #include <media/cx25840.h>
36
37 #include "cx25840-core.h"
38
39 MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
40 MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford");
41 MODULE_LICENSE("GPL");
42
43 static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
44
45
46 static int cx25840_debug;
47
48 module_param_named(debug,cx25840_debug, int, 0644);
49
50 MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]");
51
52 I2C_CLIENT_INSMOD;
53
54 /* ----------------------------------------------------------------------- */
55
56 int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
57 {
58 u8 buffer[3];
59 buffer[0] = addr >> 8;
60 buffer[1] = addr & 0xff;
61 buffer[2] = value;
62 return i2c_master_send(client, buffer, 3);
63 }
64
65 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
66 {
67 u8 buffer[6];
68 buffer[0] = addr >> 8;
69 buffer[1] = addr & 0xff;
70 buffer[2] = value >> 24;
71 buffer[3] = (value >> 16) & 0xff;
72 buffer[4] = (value >> 8) & 0xff;
73 buffer[5] = value & 0xff;
74 return i2c_master_send(client, buffer, 6);
75 }
76
77 u8 cx25840_read(struct i2c_client * client, u16 addr)
78 {
79 u8 buffer[2];
80 buffer[0] = addr >> 8;
81 buffer[1] = addr & 0xff;
82
83 if (i2c_master_send(client, buffer, 2) < 2)
84 return 0;
85
86 if (i2c_master_recv(client, buffer, 1) < 1)
87 return 0;
88
89 return buffer[0];
90 }
91
92 u32 cx25840_read4(struct i2c_client * client, u16 addr)
93 {
94 u8 buffer[4];
95 buffer[0] = addr >> 8;
96 buffer[1] = addr & 0xff;
97
98 if (i2c_master_send(client, buffer, 2) < 2)
99 return 0;
100
101 if (i2c_master_recv(client, buffer, 4) < 4)
102 return 0;
103
104 return (buffer[0] << 24) | (buffer[1] << 16) |
105 (buffer[2] << 8) | buffer[3];
106 }
107
108 int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
109 u8 or_value)
110 {
111 return cx25840_write(client, addr,
112 (cx25840_read(client, addr) & and_mask) |
113 or_value);
114 }
115
116 /* ----------------------------------------------------------------------- */
117
118 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
119 enum cx25840_audio_input aud_input);
120 static void log_status(struct i2c_client *client);
121
122 /* ----------------------------------------------------------------------- */
123
124 static void init_dll1(struct i2c_client *client)
125 {
126 /* This is the Hauppauge sequence used to
127 * initialize the Delay Lock Loop 1 (ADC DLL). */
128 cx25840_write(client, 0x159, 0x23);
129 cx25840_write(client, 0x15a, 0x87);
130 cx25840_write(client, 0x15b, 0x06);
131 cx25840_write(client, 0x159, 0xe1);
132 cx25840_write(client, 0x15a, 0x86);
133 cx25840_write(client, 0x159, 0xe0);
134 cx25840_write(client, 0x159, 0xe1);
135 cx25840_write(client, 0x15b, 0x10);
136 }
137
138 static void init_dll2(struct i2c_client *client)
139 {
140 /* This is the Hauppauge sequence used to
141 * initialize the Delay Lock Loop 2 (ADC DLL). */
142 cx25840_write(client, 0x15d, 0xe3);
143 cx25840_write(client, 0x15e, 0x86);
144 cx25840_write(client, 0x15f, 0x06);
145 cx25840_write(client, 0x15d, 0xe1);
146 cx25840_write(client, 0x15d, 0xe0);
147 cx25840_write(client, 0x15d, 0xe1);
148 }
149
150 static void cx25840_initialize(struct i2c_client *client, int loadfw)
151 {
152 struct cx25840_state *state = i2c_get_clientdata(client);
153
154 /* datasheet startup in numbered steps, refer to page 3-77 */
155 /* 2. */
156 cx25840_and_or(client, 0x803, ~0x10, 0x00);
157 /* The default of this register should be 4, but I get 0 instead.
158 * Set this register to 4 manually. */
159 cx25840_write(client, 0x000, 0x04);
160 /* 3. */
161 init_dll1(client);
162 init_dll2(client);
163 cx25840_write(client, 0x136, 0x0a);
164 /* 4. */
165 cx25840_write(client, 0x13c, 0x01);
166 cx25840_write(client, 0x13c, 0x00);
167 /* 5. */
168 if (loadfw)
169 cx25840_loadfw(client);
170 /* 6. */
171 cx25840_write(client, 0x115, 0x8c);
172 cx25840_write(client, 0x116, 0x07);
173 cx25840_write(client, 0x118, 0x02);
174 /* 7. */
175 cx25840_write(client, 0x4a5, 0x80);
176 cx25840_write(client, 0x4a5, 0x00);
177 cx25840_write(client, 0x402, 0x00);
178 /* 8. */
179 cx25840_and_or(client, 0x401, ~0x18, 0);
180 cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
181 /* steps 8c and 8d are done in change_input() */
182 /* 10. */
183 cx25840_write(client, 0x8d3, 0x1f);
184 cx25840_write(client, 0x8e3, 0x03);
185
186 cx25840_vbi_setup(client);
187
188 /* trial and error says these are needed to get audio */
189 cx25840_write(client, 0x914, 0xa0);
190 cx25840_write(client, 0x918, 0xa0);
191 cx25840_write(client, 0x919, 0x01);
192
193 /* stereo prefered */
194 cx25840_write(client, 0x809, 0x04);
195 /* AC97 shift */
196 cx25840_write(client, 0x8cf, 0x0f);
197
198 /* (re)set input */
199 set_input(client, state->vid_input, state->aud_input);
200
201 /* start microcontroller */
202 cx25840_and_or(client, 0x803, ~0x10, 0x10);
203 }
204
205 /* ----------------------------------------------------------------------- */
206
207 static void input_change(struct i2c_client *client)
208 {
209 struct cx25840_state *state = i2c_get_clientdata(client);
210 v4l2_std_id std = cx25840_get_v4lstd(client);
211
212 /* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */
213 if (std & V4L2_STD_SECAM) {
214 cx25840_write(client, 0x402, 0);
215 }
216 else {
217 cx25840_write(client, 0x402, 0x04);
218 cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
219 }
220 cx25840_and_or(client, 0x401, ~0x60, 0);
221 cx25840_and_or(client, 0x401, ~0x60, 0x60);
222
223 /* Note: perhaps V4L2_STD_PAL_M should be handled as V4L2_STD_NTSC
224 instead of V4L2_STD_PAL. Someone needs to test this. */
225 if (std & V4L2_STD_PAL) {
226 /* Follow tuner change procedure for PAL */
227 cx25840_write(client, 0x808, 0xff);
228 cx25840_write(client, 0x80b, 0x10);
229 } else if (std & V4L2_STD_SECAM) {
230 /* Select autodetect for SECAM */
231 cx25840_write(client, 0x808, 0xff);
232 cx25840_write(client, 0x80b, 0x10);
233 } else if (std & V4L2_STD_NTSC) {
234 /* Certain Hauppauge PVR150 models have a hardware bug
235 that causes audio to drop out. For these models the
236 audio standard must be set explicitly.
237 To be precise: it affects cards with tuner models
238 85, 99 and 112 (model numbers from tveeprom). */
239 int hw_fix = state->pvr150_workaround;
240
241 if (std == V4L2_STD_NTSC_M_JP) {
242 /* Japan uses EIAJ audio standard */
243 cx25840_write(client, 0x808, hw_fix ? 0x2f : 0xf7);
244 } else if (std == V4L2_STD_NTSC_M_KR) {
245 /* South Korea uses A2 audio standard */
246 cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8);
247 } else {
248 /* Others use the BTSC audio standard */
249 cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
250 }
251 cx25840_write(client, 0x80b, 0x00);
252 }
253
254 if (cx25840_read(client, 0x803) & 0x10) {
255 /* restart audio decoder microcontroller */
256 cx25840_and_or(client, 0x803, ~0x10, 0x00);
257 cx25840_and_or(client, 0x803, ~0x10, 0x10);
258 }
259 }
260
261 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
262 enum cx25840_audio_input aud_input)
263 {
264 struct cx25840_state *state = i2c_get_clientdata(client);
265 u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
266 vid_input <= CX25840_COMPOSITE8);
267 u8 reg;
268
269 v4l_dbg(1, cx25840_debug, client, "decoder set video input %d, audio input %d\n",
270 vid_input, aud_input);
271
272 if (is_composite) {
273 reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
274 } else {
275 int luma = vid_input & 0xf0;
276 int chroma = vid_input & 0xf00;
277
278 if ((vid_input & ~0xff0) ||
279 luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 ||
280 chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
281 v4l_err(client, "0x%04x is not a valid video input!\n", vid_input);
282 return -EINVAL;
283 }
284 reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
285 if (chroma >= CX25840_SVIDEO_CHROMA7) {
286 reg &= 0x3f;
287 reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
288 } else {
289 reg &= 0xcf;
290 reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
291 }
292 }
293
294 switch (aud_input) {
295 case CX25840_AUDIO_SERIAL:
296 /* do nothing, use serial audio input */
297 break;
298 case CX25840_AUDIO4: reg &= ~0x30; break;
299 case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
300 case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
301 case CX25840_AUDIO7: reg &= ~0xc0; break;
302 case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
303
304 default:
305 v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input);
306 return -EINVAL;
307 }
308
309 cx25840_write(client, 0x103, reg);
310 /* Set INPUT_MODE to Composite (0) or S-Video (1) */
311 cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
312 /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
313 cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0);
314 /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
315 if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
316 cx25840_and_or(client, 0x102, ~0x4, 4);
317 else
318 cx25840_and_or(client, 0x102, ~0x4, 0);
319
320 state->vid_input = vid_input;
321 state->aud_input = aud_input;
322 cx25840_audio_set_path(client);
323 input_change(client);
324 return 0;
325 }
326
327 /* ----------------------------------------------------------------------- */
328
329 static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
330 {
331 u8 fmt=0; /* zero is autodetect */
332
333 /* First tests should be against specific std */
334 if (std == V4L2_STD_NTSC_M_JP) {
335 fmt=0x2;
336 } else if (std == V4L2_STD_NTSC_443) {
337 fmt=0x3;
338 } else if (std == V4L2_STD_PAL_M) {
339 fmt=0x5;
340 } else if (std == V4L2_STD_PAL_N) {
341 fmt=0x6;
342 } else if (std == V4L2_STD_PAL_Nc) {
343 fmt=0x7;
344 } else if (std == V4L2_STD_PAL_60) {
345 fmt=0x8;
346 } else {
347 /* Then, test against generic ones */
348 if (std & V4L2_STD_NTSC) {
349 fmt=0x1;
350 } else if (std & V4L2_STD_PAL) {
351 fmt=0x4;
352 } else if (std & V4L2_STD_SECAM) {
353 fmt=0xc;
354 }
355 }
356
357 /* Follow step 9 of section 3.16 in the cx25840 datasheet.
358 Without this PAL may display a vertical ghosting effect.
359 This happens for example with the Yuan MPC622. */
360 if (fmt >= 4 && fmt < 8) {
361 /* Set format to NTSC-M */
362 cx25840_and_or(client, 0x400, ~0xf, 1);
363 /* Turn off LCOMB */
364 cx25840_and_or(client, 0x47b, ~6, 0);
365 }
366 cx25840_and_or(client, 0x400, ~0xf, fmt);
367 cx25840_vbi_setup(client);
368 return 0;
369 }
370
371 v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
372 {
373 /* check VID_FMT_SEL first */
374 u8 fmt = cx25840_read(client, 0x400) & 0xf;
375
376 if (!fmt) {
377 /* check AFD_FMT_STAT if set to autodetect */
378 fmt = cx25840_read(client, 0x40d) & 0xf;
379 }
380
381 switch (fmt) {
382 case 0x1:
383 {
384 /* if the audio std is A2-M, then this is the South Korean
385 NTSC standard */
386 if (cx25840_read(client, 0x805) == 2)
387 return V4L2_STD_NTSC_M_KR;
388 return V4L2_STD_NTSC_M;
389 }
390 case 0x2: return V4L2_STD_NTSC_M_JP;
391 case 0x3: return V4L2_STD_NTSC_443;
392 case 0x4: return V4L2_STD_PAL;
393 case 0x5: return V4L2_STD_PAL_M;
394 case 0x6: return V4L2_STD_PAL_N;
395 case 0x7: return V4L2_STD_PAL_Nc;
396 case 0x8: return V4L2_STD_PAL_60;
397 case 0xc: return V4L2_STD_SECAM;
398 default: return V4L2_STD_UNKNOWN;
399 }
400 }
401
402 /* ----------------------------------------------------------------------- */
403
404 static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
405 {
406 struct cx25840_state *state = i2c_get_clientdata(client);
407
408 switch (ctrl->id) {
409 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
410 state->pvr150_workaround = ctrl->value;
411 set_input(client, state->vid_input, state->aud_input);
412 break;
413
414 case V4L2_CID_BRIGHTNESS:
415 if (ctrl->value < 0 || ctrl->value > 255) {
416 v4l_err(client, "invalid brightness setting %d\n",
417 ctrl->value);
418 return -ERANGE;
419 }
420
421 cx25840_write(client, 0x414, ctrl->value - 128);
422 break;
423
424 case V4L2_CID_CONTRAST:
425 if (ctrl->value < 0 || ctrl->value > 127) {
426 v4l_err(client, "invalid contrast setting %d\n",
427 ctrl->value);
428 return -ERANGE;
429 }
430
431 cx25840_write(client, 0x415, ctrl->value << 1);
432 break;
433
434 case V4L2_CID_SATURATION:
435 if (ctrl->value < 0 || ctrl->value > 127) {
436 v4l_err(client, "invalid saturation setting %d\n",
437 ctrl->value);
438 return -ERANGE;
439 }
440
441 cx25840_write(client, 0x420, ctrl->value << 1);
442 cx25840_write(client, 0x421, ctrl->value << 1);
443 break;
444
445 case V4L2_CID_HUE:
446 if (ctrl->value < -127 || ctrl->value > 127) {
447 v4l_err(client, "invalid hue setting %d\n", ctrl->value);
448 return -ERANGE;
449 }
450
451 cx25840_write(client, 0x422, ctrl->value);
452 break;
453
454 case V4L2_CID_AUDIO_VOLUME:
455 case V4L2_CID_AUDIO_BASS:
456 case V4L2_CID_AUDIO_TREBLE:
457 case V4L2_CID_AUDIO_BALANCE:
458 case V4L2_CID_AUDIO_MUTE:
459 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
460
461 default:
462 return -EINVAL;
463 }
464
465 return 0;
466 }
467
468 static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
469 {
470 struct cx25840_state *state = i2c_get_clientdata(client);
471
472 switch (ctrl->id) {
473 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
474 ctrl->value = state->pvr150_workaround;
475 break;
476 case V4L2_CID_BRIGHTNESS:
477 ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
478 break;
479 case V4L2_CID_CONTRAST:
480 ctrl->value = cx25840_read(client, 0x415) >> 1;
481 break;
482 case V4L2_CID_SATURATION:
483 ctrl->value = cx25840_read(client, 0x420) >> 1;
484 break;
485 case V4L2_CID_HUE:
486 ctrl->value = (s8)cx25840_read(client, 0x422);
487 break;
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 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
494 default:
495 return -EINVAL;
496 }
497
498 return 0;
499 }
500
501 /* ----------------------------------------------------------------------- */
502
503 static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
504 {
505 switch (fmt->type) {
506 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
507 return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
508 default:
509 return -EINVAL;
510 }
511
512 return 0;
513 }
514
515 static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
516 {
517 struct v4l2_pix_format *pix;
518 int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
519 int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_NTSC);
520
521 switch (fmt->type) {
522 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
523 pix = &(fmt->fmt.pix);
524
525 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
526 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
527
528 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
529 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
530
531 Vlines = pix->height + (is_pal ? 4 : 7);
532
533 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
534 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
535 v4l_err(client, "%dx%d is not a valid size!\n",
536 pix->width, pix->height);
537 return -ERANGE;
538 }
539
540 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
541 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
542 VSC &= 0x1fff;
543
544 if (pix->width >= 385)
545 filter = 0;
546 else if (pix->width > 192)
547 filter = 1;
548 else if (pix->width > 96)
549 filter = 2;
550 else
551 filter = 3;
552
553 v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale %ux%u\n",
554 pix->width, pix->height, HSC, VSC);
555
556 /* HSCALE=HSC */
557 cx25840_write(client, 0x418, HSC & 0xff);
558 cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
559 cx25840_write(client, 0x41a, HSC >> 16);
560 /* VSCALE=VSC */
561 cx25840_write(client, 0x41c, VSC & 0xff);
562 cx25840_write(client, 0x41d, VSC >> 8);
563 /* VS_INTRLACE=1 VFILT=filter */
564 cx25840_write(client, 0x41e, 0x8 | filter);
565 break;
566
567 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
568 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
569
570 case V4L2_BUF_TYPE_VBI_CAPTURE:
571 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
572
573 default:
574 return -EINVAL;
575 }
576
577 return 0;
578 }
579
580 /* ----------------------------------------------------------------------- */
581
582 static struct v4l2_queryctrl cx25840_qctrl[] = {
583 {
584 .id = V4L2_CID_BRIGHTNESS,
585 .type = V4L2_CTRL_TYPE_INTEGER,
586 .name = "Brightness",
587 .minimum = 0,
588 .maximum = 255,
589 .step = 1,
590 .default_value = 128,
591 .flags = 0,
592 }, {
593 .id = V4L2_CID_CONTRAST,
594 .type = V4L2_CTRL_TYPE_INTEGER,
595 .name = "Contrast",
596 .minimum = 0,
597 .maximum = 127,
598 .step = 1,
599 .default_value = 64,
600 .flags = 0,
601 }, {
602 .id = V4L2_CID_SATURATION,
603 .type = V4L2_CTRL_TYPE_INTEGER,
604 .name = "Saturation",
605 .minimum = 0,
606 .maximum = 127,
607 .step = 1,
608 .default_value = 64,
609 .flags = 0,
610 }, {
611 .id = V4L2_CID_HUE,
612 .type = V4L2_CTRL_TYPE_INTEGER,
613 .name = "Hue",
614 .minimum = -128,
615 .maximum = 127,
616 .step = 1,
617 .default_value = 0,
618 .flags = 0,
619 }, {
620 .id = V4L2_CID_AUDIO_VOLUME,
621 .type = V4L2_CTRL_TYPE_INTEGER,
622 .name = "Volume",
623 .minimum = 0,
624 .maximum = 65535,
625 .step = 65535/100,
626 .default_value = 58880,
627 .flags = 0,
628 }, {
629 .id = V4L2_CID_AUDIO_BALANCE,
630 .type = V4L2_CTRL_TYPE_INTEGER,
631 .name = "Balance",
632 .minimum = 0,
633 .maximum = 65535,
634 .step = 65535/100,
635 .default_value = 32768,
636 .flags = 0,
637 }, {
638 .id = V4L2_CID_AUDIO_MUTE,
639 .type = V4L2_CTRL_TYPE_BOOLEAN,
640 .name = "Mute",
641 .minimum = 0,
642 .maximum = 1,
643 .step = 1,
644 .default_value = 1,
645 .flags = 0,
646 }, {
647 .id = V4L2_CID_AUDIO_BASS,
648 .type = V4L2_CTRL_TYPE_INTEGER,
649 .name = "Bass",
650 .minimum = 0,
651 .maximum = 65535,
652 .step = 65535/100,
653 .default_value = 32768,
654 }, {
655 .id = V4L2_CID_AUDIO_TREBLE,
656 .type = V4L2_CTRL_TYPE_INTEGER,
657 .name = "Treble",
658 .minimum = 0,
659 .maximum = 65535,
660 .step = 65535/100,
661 .default_value = 32768,
662 },
663 };
664
665 /* ----------------------------------------------------------------------- */
666
667 static int cx25840_command(struct i2c_client *client, unsigned int cmd,
668 void *arg)
669 {
670 struct cx25840_state *state = i2c_get_clientdata(client);
671 struct v4l2_tuner *vt = arg;
672 struct v4l2_routing *route = arg;
673
674 switch (cmd) {
675 #ifdef CONFIG_VIDEO_ADV_DEBUG
676 /* ioctls to allow direct access to the
677 * cx25840 registers for testing */
678 case VIDIOC_INT_G_REGISTER:
679 {
680 struct v4l2_register *reg = arg;
681
682 if (reg->i2c_id != I2C_DRIVERID_CX25840)
683 return -EINVAL;
684 reg->val = cx25840_read(client, reg->reg & 0x0fff);
685 break;
686 }
687
688 case VIDIOC_INT_S_REGISTER:
689 {
690 struct v4l2_register *reg = arg;
691
692 if (reg->i2c_id != I2C_DRIVERID_CX25840)
693 return -EINVAL;
694 if (!capable(CAP_SYS_ADMIN))
695 return -EPERM;
696 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
697 break;
698 }
699 #endif
700
701 case VIDIOC_INT_DECODE_VBI_LINE:
702 return cx25840_vbi(client, cmd, arg);
703
704 case VIDIOC_INT_AUDIO_CLOCK_FREQ:
705 return cx25840_audio(client, cmd, arg);
706
707 case VIDIOC_STREAMON:
708 v4l_dbg(1, cx25840_debug, client, "enable output\n");
709 cx25840_write(client, 0x115, 0x8c);
710 cx25840_write(client, 0x116, 0x07);
711 break;
712
713 case VIDIOC_STREAMOFF:
714 v4l_dbg(1, cx25840_debug, client, "disable output\n");
715 cx25840_write(client, 0x115, 0x00);
716 cx25840_write(client, 0x116, 0x00);
717 break;
718
719 case VIDIOC_LOG_STATUS:
720 log_status(client);
721 break;
722
723 case VIDIOC_G_CTRL:
724 return get_v4lctrl(client, (struct v4l2_control *)arg);
725
726 case VIDIOC_S_CTRL:
727 return set_v4lctrl(client, (struct v4l2_control *)arg);
728
729 case VIDIOC_QUERYCTRL:
730 {
731 struct v4l2_queryctrl *qc = arg;
732 int i;
733
734 for (i = 0; i < ARRAY_SIZE(cx25840_qctrl); i++)
735 if (qc->id && qc->id == cx25840_qctrl[i].id) {
736 memcpy(qc, &cx25840_qctrl[i], sizeof(*qc));
737 return 0;
738 }
739 return -EINVAL;
740 }
741
742 case VIDIOC_G_STD:
743 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
744 break;
745
746 case VIDIOC_S_STD:
747 state->radio = 0;
748 return set_v4lstd(client, *(v4l2_std_id *)arg);
749
750 case AUDC_SET_RADIO:
751 state->radio = 1;
752 break;
753
754 case VIDIOC_INT_G_VIDEO_ROUTING:
755 route->input = state->vid_input;
756 route->output = 0;
757 break;
758
759 case VIDIOC_INT_S_VIDEO_ROUTING:
760 return set_input(client, route->input, state->aud_input);
761
762 case VIDIOC_INT_G_AUDIO_ROUTING:
763 route->input = state->aud_input;
764 route->output = 0;
765 break;
766
767 case VIDIOC_INT_S_AUDIO_ROUTING:
768 return set_input(client, state->vid_input, route->input);
769
770 case VIDIOC_S_FREQUENCY:
771 input_change(client);
772 break;
773
774 case VIDIOC_G_TUNER:
775 {
776 u8 mode = cx25840_read(client, 0x804);
777 u8 vpres = cx25840_read(client, 0x80a) & 0x10;
778 int val = 0;
779
780 if (state->radio)
781 break;
782
783 vt->capability |=
784 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
785 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
786
787 vt->signal = vpres ? 0xffff : 0x0;
788
789 /* get rxsubchans and audmode */
790 if ((mode & 0xf) == 1)
791 val |= V4L2_TUNER_SUB_STEREO;
792 else
793 val |= V4L2_TUNER_SUB_MONO;
794
795 if (mode == 2 || mode == 4)
796 val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
797
798 if (mode & 0x10)
799 val |= V4L2_TUNER_SUB_SAP;
800
801 vt->rxsubchans = val;
802 vt->audmode = state->audmode;
803 break;
804 }
805
806 case VIDIOC_S_TUNER:
807 if (state->radio)
808 break;
809
810 switch (vt->audmode) {
811 case V4L2_TUNER_MODE_MONO:
812 /* mono -> mono
813 stereo -> mono
814 bilingual -> lang1 */
815 cx25840_and_or(client, 0x809, ~0xf, 0x00);
816 break;
817 case V4L2_TUNER_MODE_STEREO:
818 case V4L2_TUNER_MODE_LANG1:
819 /* mono -> mono
820 stereo -> stereo
821 bilingual -> lang1 */
822 cx25840_and_or(client, 0x809, ~0xf, 0x04);
823 break;
824 case V4L2_TUNER_MODE_LANG1_LANG2:
825 /* mono -> mono
826 stereo -> stereo
827 bilingual -> lang1/lang2 */
828 cx25840_and_or(client, 0x809, ~0xf, 0x07);
829 break;
830 case V4L2_TUNER_MODE_LANG2:
831 /* mono -> mono
832 stereo -> stereo
833 bilingual -> lang2 */
834 cx25840_and_or(client, 0x809, ~0xf, 0x01);
835 break;
836 default:
837 return -EINVAL;
838 }
839 state->audmode = vt->audmode;
840 break;
841
842 case VIDIOC_G_FMT:
843 return get_v4lfmt(client, (struct v4l2_format *)arg);
844
845 case VIDIOC_S_FMT:
846 return set_v4lfmt(client, (struct v4l2_format *)arg);
847
848 case VIDIOC_INT_RESET:
849 cx25840_initialize(client, 0);
850 break;
851
852 case VIDIOC_INT_G_CHIP_IDENT:
853 *(enum v4l2_chip_ident *)arg =
854 V4L2_IDENT_CX25840 + ((cx25840_read(client, 0x100) >> 4) & 0xf);
855 break;
856
857 default:
858 return -EINVAL;
859 }
860
861 return 0;
862 }
863
864 /* ----------------------------------------------------------------------- */
865
866 static struct i2c_driver i2c_driver_cx25840;
867
868 static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
869 int kind)
870 {
871 struct i2c_client *client;
872 struct cx25840_state *state;
873 u16 device_id;
874
875 /* Check if the adapter supports the needed features
876 * Not until kernel version 2.6.11 did the bit-algo
877 * correctly report that it would do an I2C-level xfer */
878 if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
879 return 0;
880
881 client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
882 if (client == 0)
883 return -ENOMEM;
884
885 client->addr = address;
886 client->adapter = adapter;
887 client->driver = &i2c_driver_cx25840;
888 snprintf(client->name, sizeof(client->name) - 1, "cx25840");
889
890 v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", address << 1);
891
892 device_id = cx25840_read(client, 0x101) << 8;
893 device_id |= cx25840_read(client, 0x100);
894
895 /* The high byte of the device ID should be
896 * 0x84 if chip is present */
897 if ((device_id & 0xff00) != 0x8400) {
898 v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
899 kfree(client);
900 return 0;
901 }
902
903 v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
904 (device_id & 0xfff0) >> 4,
905 (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : 3,
906 address << 1, adapter->name);
907
908 state = kmalloc(sizeof(struct cx25840_state), GFP_KERNEL);
909 if (state == NULL) {
910 kfree(client);
911 return -ENOMEM;
912 }
913
914 i2c_set_clientdata(client, state);
915 memset(state, 0, sizeof(struct cx25840_state));
916 state->vid_input = CX25840_COMPOSITE7;
917 state->aud_input = CX25840_AUDIO8;
918 state->audclk_freq = 48000;
919 state->pvr150_workaround = 0;
920 state->audmode = V4L2_TUNER_MODE_LANG1;
921
922 cx25840_initialize(client, 1);
923
924 i2c_attach_client(client);
925
926 return 0;
927 }
928
929 static int cx25840_attach_adapter(struct i2c_adapter *adapter)
930 {
931 if (adapter->class & I2C_CLASS_TV_ANALOG)
932 return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
933 return 0;
934 }
935
936 static int cx25840_detach_client(struct i2c_client *client)
937 {
938 struct cx25840_state *state = i2c_get_clientdata(client);
939 int err;
940
941 err = i2c_detach_client(client);
942 if (err) {
943 return err;
944 }
945
946 kfree(state);
947 kfree(client);
948
949 return 0;
950 }
951
952 /* ----------------------------------------------------------------------- */
953
954 static struct i2c_driver i2c_driver_cx25840 = {
955 .driver = {
956 .name = "cx25840",
957 },
958 .id = I2C_DRIVERID_CX25840,
959 .attach_adapter = cx25840_attach_adapter,
960 .detach_client = cx25840_detach_client,
961 .command = cx25840_command,
962 };
963
964
965 static int __init m__init(void)
966 {
967 return i2c_add_driver(&i2c_driver_cx25840);
968 }
969
970 static void __exit m__exit(void)
971 {
972 i2c_del_driver(&i2c_driver_cx25840);
973 }
974
975 module_init(m__init);
976 module_exit(m__exit);
977
978 /* ----------------------------------------------------------------------- */
979
980 static void log_status(struct i2c_client *client)
981 {
982 static const char *const fmt_strs[] = {
983 "0x0",
984 "NTSC-M", "NTSC-J", "NTSC-4.43",
985 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
986 "0x9", "0xA", "0xB",
987 "SECAM",
988 "0xD", "0xE", "0xF"
989 };
990
991 struct cx25840_state *state = i2c_get_clientdata(client);
992 u8 microctrl_vidfmt = cx25840_read(client, 0x80a);
993 u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
994 u8 gen_stat1 = cx25840_read(client, 0x40d);
995 u8 download_ctl = cx25840_read(client, 0x803);
996 u8 mod_det_stat0 = cx25840_read(client, 0x804);
997 u8 mod_det_stat1 = cx25840_read(client, 0x805);
998 u8 audio_config = cx25840_read(client, 0x808);
999 u8 pref_mode = cx25840_read(client, 0x809);
1000 u8 afc0 = cx25840_read(client, 0x80b);
1001 u8 mute_ctl = cx25840_read(client, 0x8d3);
1002 int vid_input = state->vid_input;
1003 int aud_input = state->aud_input;
1004 char *p;
1005
1006 v4l_info(client, "Video signal: %spresent\n",
1007 (microctrl_vidfmt & 0x10) ? "" : "not ");
1008 v4l_info(client, "Detected format: %s\n",
1009 fmt_strs[gen_stat1 & 0xf]);
1010
1011 switch (mod_det_stat0) {
1012 case 0x00: p = "mono"; break;
1013 case 0x01: p = "stereo"; break;
1014 case 0x02: p = "dual"; break;
1015 case 0x04: p = "tri"; break;
1016 case 0x10: p = "mono with SAP"; break;
1017 case 0x11: p = "stereo with SAP"; break;
1018 case 0x12: p = "dual with SAP"; break;
1019 case 0x14: p = "tri with SAP"; break;
1020 case 0xfe: p = "forced mode"; break;
1021 default: p = "not defined";
1022 }
1023 v4l_info(client, "Detected audio mode: %s\n", p);
1024
1025 switch (mod_det_stat1) {
1026 case 0x00: p = "not defined"; break;
1027 case 0x01: p = "EIAJ"; break;
1028 case 0x02: p = "A2-M"; break;
1029 case 0x03: p = "A2-BG"; break;
1030 case 0x04: p = "A2-DK1"; break;
1031 case 0x05: p = "A2-DK2"; break;
1032 case 0x06: p = "A2-DK3"; break;
1033 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
1034 case 0x08: p = "AM-L"; break;
1035 case 0x09: p = "NICAM-BG"; break;
1036 case 0x0a: p = "NICAM-DK"; break;
1037 case 0x0b: p = "NICAM-I"; break;
1038 case 0x0c: p = "NICAM-L"; break;
1039 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
1040 case 0x0e: p = "IF FM Radio"; break;
1041 case 0x0f: p = "BTSC"; break;
1042 case 0x10: p = "high-deviation FM"; break;
1043 case 0x11: p = "very high-deviation FM"; break;
1044 case 0xfd: p = "unknown audio standard"; break;
1045 case 0xfe: p = "forced audio standard"; break;
1046 case 0xff: p = "no detected audio standard"; break;
1047 default: p = "not defined";
1048 }
1049 v4l_info(client, "Detected audio standard: %s\n", p);
1050 v4l_info(client, "Audio muted: %s\n",
1051 (mute_ctl & 0x2) ? "yes" : "no");
1052 v4l_info(client, "Audio microcontroller: %s\n",
1053 (download_ctl & 0x10) ? "running" : "stopped");
1054
1055 switch (audio_config >> 4) {
1056 case 0x00: p = "undefined"; break;
1057 case 0x01: p = "BTSC"; break;
1058 case 0x02: p = "EIAJ"; break;
1059 case 0x03: p = "A2-M"; break;
1060 case 0x04: p = "A2-BG"; break;
1061 case 0x05: p = "A2-DK1"; break;
1062 case 0x06: p = "A2-DK2"; break;
1063 case 0x07: p = "A2-DK3"; break;
1064 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
1065 case 0x09: p = "AM-L"; break;
1066 case 0x0a: p = "NICAM-BG"; break;
1067 case 0x0b: p = "NICAM-DK"; break;
1068 case 0x0c: p = "NICAM-I"; break;
1069 case 0x0d: p = "NICAM-L"; break;
1070 case 0x0e: p = "FM radio"; break;
1071 case 0x0f: p = "automatic detection"; break;
1072 default: p = "undefined";
1073 }
1074 v4l_info(client, "Configured audio standard: %s\n", p);
1075
1076 if ((audio_config >> 4) < 0xF) {
1077 switch (audio_config & 0xF) {
1078 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
1079 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
1080 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
1081 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
1082 case 0x04: p = "STEREO"; break;
1083 case 0x05: p = "DUAL1 (AB)"; break;
1084 case 0x06: p = "DUAL2 (AC) (FM)"; break;
1085 case 0x07: p = "DUAL3 (BC) (FM)"; break;
1086 case 0x08: p = "DUAL4 (AC) (AM)"; break;
1087 case 0x09: p = "DUAL5 (BC) (AM)"; break;
1088 case 0x0a: p = "SAP"; break;
1089 default: p = "undefined";
1090 }
1091 v4l_info(client, "Configured audio mode: %s\n", p);
1092 } else {
1093 switch (audio_config & 0xF) {
1094 case 0x00: p = "BG"; break;
1095 case 0x01: p = "DK1"; break;
1096 case 0x02: p = "DK2"; break;
1097 case 0x03: p = "DK3"; break;
1098 case 0x04: p = "I"; break;
1099 case 0x05: p = "L"; break;
1100 case 0x06: p = "BTSC"; break;
1101 case 0x07: p = "EIAJ"; break;
1102 case 0x08: p = "A2-M"; break;
1103 case 0x09: p = "FM Radio"; break;
1104 case 0x0f: p = "automatic standard and mode detection"; break;
1105 default: p = "undefined";
1106 }
1107 v4l_info(client, "Configured audio system: %s\n", p);
1108 }
1109
1110 v4l_info(client, "Specified standard: %s\n",
1111 vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
1112
1113 if (vid_input >= CX25840_COMPOSITE1 &&
1114 vid_input <= CX25840_COMPOSITE8) {
1115 v4l_info(client, "Specified video input: Composite %d\n",
1116 vid_input - CX25840_COMPOSITE1 + 1);
1117 } else {
1118 v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
1119 (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
1120 }
1121 if (aud_input) {
1122 v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input);
1123 } else {
1124 v4l_info(client, "Specified audio input: External\n");
1125 }
1126
1127 v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
1128
1129 switch (pref_mode & 0xf) {
1130 case 0: p = "mono/language A"; break;
1131 case 1: p = "language B"; break;
1132 case 2: p = "language C"; break;
1133 case 3: p = "analog fallback"; break;
1134 case 4: p = "stereo"; break;
1135 case 5: p = "language AC"; break;
1136 case 6: p = "language BC"; break;
1137 case 7: p = "language AB"; break;
1138 default: p = "undefined";
1139 }
1140 v4l_info(client, "Preferred audio mode: %s\n", p);
1141
1142 if ((audio_config & 0xf) == 0xf) {
1143 switch ((afc0 >> 3) & 0x3) {
1144 case 0: p = "system DK"; break;
1145 case 1: p = "system L"; break;
1146 case 2: p = "autodetect"; break;
1147 default: p = "undefined";
1148 }
1149 v4l_info(client, "Selected 65 MHz format: %s\n", p);
1150
1151 switch (afc0 & 0x7) {
1152 case 0: p = "chroma"; break;
1153 case 1: p = "BTSC"; break;
1154 case 2: p = "EIAJ"; break;
1155 case 3: p = "A2-M"; break;
1156 case 4: p = "autodetect"; break;
1157 default: p = "undefined";
1158 }
1159 v4l_info(client, "Selected 45 MHz format: %s\n", p);
1160 }
1161 }
Linux with added FPC-III support