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V4L/DVB (6715): ivtv: Remove unnecessary register update
[linux-2.6/verdex.git] / drivers / media / video / cx25840 / cx25840-core.c
blob6d2ca822a638cbfc713fa7a2850b348c61b5652c
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 <linux/delay.h>
38 #include <media/v4l2-common.h>
39 #include <media/v4l2-chip-ident.h>
40 #include <media/v4l2-i2c-drv-legacy.h>
41 #include <media/cx25840.h>
42
43 #include "cx25840-core.h"
44
45 MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
46 MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford");
47 MODULE_LICENSE("GPL");
48
49 static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
50
51
52 int cx25840_debug;
53
54 module_param_named(debug,cx25840_debug, int, 0644);
55
56 MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]");
57
58 I2C_CLIENT_INSMOD;
59
60 /* ----------------------------------------------------------------------- */
61
62 int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
63 {
64 u8 buffer[3];
65 buffer[0] = addr >> 8;
66 buffer[1] = addr & 0xff;
67 buffer[2] = value;
68 return i2c_master_send(client, buffer, 3);
69 }
70
71 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
72 {
73 u8 buffer[6];
74 buffer[0] = addr >> 8;
75 buffer[1] = addr & 0xff;
76 buffer[2] = value >> 24;
77 buffer[3] = (value >> 16) & 0xff;
78 buffer[4] = (value >> 8) & 0xff;
79 buffer[5] = value & 0xff;
80 return i2c_master_send(client, buffer, 6);
81 }
82
83 u8 cx25840_read(struct i2c_client * client, u16 addr)
84 {
85 u8 buffer[2];
86 buffer[0] = addr >> 8;
87 buffer[1] = addr & 0xff;
88
89 if (i2c_master_send(client, buffer, 2) < 2)
90 return 0;
91
92 if (i2c_master_recv(client, buffer, 1) < 1)
93 return 0;
94
95 return buffer[0];
96 }
97
98 u32 cx25840_read4(struct i2c_client * client, u16 addr)
99 {
100 u8 buffer[4];
101 buffer[0] = addr >> 8;
102 buffer[1] = addr & 0xff;
103
104 if (i2c_master_send(client, buffer, 2) < 2)
105 return 0;
106
107 if (i2c_master_recv(client, buffer, 4) < 4)
108 return 0;
109
110 return (buffer[3] << 24) | (buffer[2] << 16) |
111 (buffer[1] << 8) | buffer[0];
112 }
113
114 int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned and_mask,
115 u8 or_value)
116 {
117 return cx25840_write(client, addr,
118 (cx25840_read(client, addr) & and_mask) |
119 or_value);
120 }
121
122 /* ----------------------------------------------------------------------- */
123
124 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
125 enum cx25840_audio_input aud_input);
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 udelay(10);
137 cx25840_write(client, 0x159, 0xe1);
138 udelay(10);
139 cx25840_write(client, 0x15a, 0x86);
140 cx25840_write(client, 0x159, 0xe0);
141 cx25840_write(client, 0x159, 0xe1);
142 cx25840_write(client, 0x15b, 0x10);
143 }
144
145 static void init_dll2(struct i2c_client *client)
146 {
147 /* This is the Hauppauge sequence used to
148 * initialize the Delay Lock Loop 2 (ADC DLL). */
149 cx25840_write(client, 0x15d, 0xe3);
150 cx25840_write(client, 0x15e, 0x86);
151 cx25840_write(client, 0x15f, 0x06);
152 udelay(10);
153 cx25840_write(client, 0x15d, 0xe1);
154 cx25840_write(client, 0x15d, 0xe0);
155 cx25840_write(client, 0x15d, 0xe1);
156 }
157
158 static void cx25836_initialize(struct i2c_client *client)
159 {
160 /* reset configuration is described on page 3-77 of the CX25836 datasheet */
161 /* 2. */
162 cx25840_and_or(client, 0x000, ~0x01, 0x01);
163 cx25840_and_or(client, 0x000, ~0x01, 0x00);
164 /* 3a. */
165 cx25840_and_or(client, 0x15a, ~0x70, 0x00);
166 /* 3b. */
167 cx25840_and_or(client, 0x15b, ~0x1e, 0x06);
168 /* 3c. */
169 cx25840_and_or(client, 0x159, ~0x02, 0x02);
170 /* 3d. */
171 udelay(10);
172 /* 3e. */
173 cx25840_and_or(client, 0x159, ~0x02, 0x00);
174 /* 3f. */
175 cx25840_and_or(client, 0x159, ~0xc0, 0xc0);
176 /* 3g. */
177 cx25840_and_or(client, 0x159, ~0x01, 0x00);
178 cx25840_and_or(client, 0x159, ~0x01, 0x01);
179 /* 3h. */
180 cx25840_and_or(client, 0x15b, ~0x1e, 0x10);
181 }
182
183 static void cx25840_work_handler(struct work_struct *work)
184 {
185 struct cx25840_state *state = container_of(work, struct cx25840_state, fw_work);
186 cx25840_loadfw(state->c);
187 wake_up(&state->fw_wait);
188 }
189
190 static void cx25840_initialize(struct i2c_client *client)
191 {
192 DEFINE_WAIT(wait);
193 struct cx25840_state *state = i2c_get_clientdata(client);
194 struct workqueue_struct *q;
195
196 /* datasheet startup in numbered steps, refer to page 3-77 */
197 /* 2. */
198 cx25840_and_or(client, 0x803, ~0x10, 0x00);
199 /* The default of this register should be 4, but I get 0 instead.
200 * Set this register to 4 manually. */
201 cx25840_write(client, 0x000, 0x04);
202 /* 3. */
203 init_dll1(client);
204 init_dll2(client);
205 cx25840_write(client, 0x136, 0x0a);
206 /* 4. */
207 cx25840_write(client, 0x13c, 0x01);
208 cx25840_write(client, 0x13c, 0x00);
209 /* 5. */
210 /* Do the firmware load in a work handler to prevent.
211 Otherwise the kernel is blocked waiting for the
212 bit-banging i2c interface to finish uploading the
213 firmware. */
214 INIT_WORK(&state->fw_work, cx25840_work_handler);
215 init_waitqueue_head(&state->fw_wait);
216 q = create_singlethread_workqueue("cx25840_fw");
217 prepare_to_wait(&state->fw_wait, &wait, TASK_UNINTERRUPTIBLE);
218 queue_work(q, &state->fw_work);
219 schedule();
220 finish_wait(&state->fw_wait, &wait);
221 destroy_workqueue(q);
222
223 /* 6. */
224 cx25840_write(client, 0x115, 0x8c);
225 cx25840_write(client, 0x116, 0x07);
226 cx25840_write(client, 0x118, 0x02);
227 /* 7. */
228 cx25840_write(client, 0x4a5, 0x80);
229 cx25840_write(client, 0x4a5, 0x00);
230 cx25840_write(client, 0x402, 0x00);
231 /* 8. */
232 cx25840_and_or(client, 0x401, ~0x18, 0);
233 cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
234 /* steps 8c and 8d are done in change_input() */
235 /* 10. */
236 cx25840_write(client, 0x8d3, 0x1f);
237 cx25840_write(client, 0x8e3, 0x03);
238
239 cx25840_vbi_setup(client);
240
241 /* trial and error says these are needed to get audio */
242 cx25840_write(client, 0x914, 0xa0);
243 cx25840_write(client, 0x918, 0xa0);
244 cx25840_write(client, 0x919, 0x01);
245
246 /* stereo prefered */
247 cx25840_write(client, 0x809, 0x04);
248 /* AC97 shift */
249 cx25840_write(client, 0x8cf, 0x0f);
250
251 /* (re)set input */
252 set_input(client, state->vid_input, state->aud_input);
253
254 /* start microcontroller */
255 cx25840_and_or(client, 0x803, ~0x10, 0x10);
256 }
257
258 /* ----------------------------------------------------------------------- */
259
260 static void input_change(struct i2c_client *client)
261 {
262 struct cx25840_state *state = i2c_get_clientdata(client);
263 v4l2_std_id std = cx25840_get_v4lstd(client);
264
265 /* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */
266 if (std & V4L2_STD_SECAM) {
267 cx25840_write(client, 0x402, 0);
268 }
269 else {
270 cx25840_write(client, 0x402, 0x04);
271 cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
272 }
273 cx25840_and_or(client, 0x401, ~0x60, 0);
274 cx25840_and_or(client, 0x401, ~0x60, 0x60);
275 cx25840_and_or(client, 0x810, ~0x01, 1);
276
277 if (state->radio) {
278 cx25840_write(client, 0x808, 0xf9);
279 cx25840_write(client, 0x80b, 0x00);
280 }
281 else if (std & V4L2_STD_525_60) {
282 /* Certain Hauppauge PVR150 models have a hardware bug
283 that causes audio to drop out. For these models the
284 audio standard must be set explicitly.
285 To be precise: it affects cards with tuner models
286 85, 99 and 112 (model numbers from tveeprom). */
287 int hw_fix = state->pvr150_workaround;
288
289 if (std == V4L2_STD_NTSC_M_JP) {
290 /* Japan uses EIAJ audio standard */
291 cx25840_write(client, 0x808, hw_fix ? 0x2f : 0xf7);
292 } else if (std == V4L2_STD_NTSC_M_KR) {
293 /* South Korea uses A2 audio standard */
294 cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8);
295 } else {
296 /* Others use the BTSC audio standard */
297 cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
298 }
299 cx25840_write(client, 0x80b, 0x00);
300 } else if (std & V4L2_STD_PAL) {
301 /* Follow tuner change procedure for PAL */
302 cx25840_write(client, 0x808, 0xff);
303 cx25840_write(client, 0x80b, 0x10);
304 } else if (std & V4L2_STD_SECAM) {
305 /* Select autodetect for SECAM */
306 cx25840_write(client, 0x808, 0xff);
307 cx25840_write(client, 0x80b, 0x10);
308 }
309
310 cx25840_and_or(client, 0x810, ~0x01, 0);
311 }
312
313 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
314 enum cx25840_audio_input aud_input)
315 {
316 struct cx25840_state *state = i2c_get_clientdata(client);
317 u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
318 vid_input <= CX25840_COMPOSITE8);
319 u8 reg;
320
321 v4l_dbg(1, cx25840_debug, client, "decoder set video input %d, audio input %d\n",
322 vid_input, aud_input);
323
324 if (is_composite) {
325 reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
326 } else {
327 int luma = vid_input & 0xf0;
328 int chroma = vid_input & 0xf00;
329
330 if ((vid_input & ~0xff0) ||
331 luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 ||
332 chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
333 v4l_err(client, "0x%04x is not a valid video input!\n", vid_input);
334 return -EINVAL;
335 }
336 reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
337 if (chroma >= CX25840_SVIDEO_CHROMA7) {
338 reg &= 0x3f;
339 reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
340 } else {
341 reg &= 0xcf;
342 reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
343 }
344 }
345
346 switch (aud_input) {
347 case CX25840_AUDIO_SERIAL:
348 /* do nothing, use serial audio input */
349 break;
350 case CX25840_AUDIO4: reg &= ~0x30; break;
351 case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
352 case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
353 case CX25840_AUDIO7: reg &= ~0xc0; break;
354 case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
355
356 default:
357 v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input);
358 return -EINVAL;
359 }
360
361 cx25840_write(client, 0x103, reg);
362 /* Set INPUT_MODE to Composite (0) or S-Video (1) */
363 cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
364 /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
365 cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0);
366 /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
367 if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
368 cx25840_and_or(client, 0x102, ~0x4, 4);
369 else
370 cx25840_and_or(client, 0x102, ~0x4, 0);
371
372 state->vid_input = vid_input;
373 state->aud_input = aud_input;
374 if (!state->is_cx25836) {
375 cx25840_audio_set_path(client);
376 input_change(client);
377 }
378 return 0;
379 }
380
381 /* ----------------------------------------------------------------------- */
382
383 static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
384 {
385 u8 fmt=0; /* zero is autodetect */
386
387 /* First tests should be against specific std */
388 if (std == V4L2_STD_NTSC_M_JP) {
389 fmt=0x2;
390 } else if (std == V4L2_STD_NTSC_443) {
391 fmt=0x3;
392 } else if (std == V4L2_STD_PAL_M) {
393 fmt=0x5;
394 } else if (std == V4L2_STD_PAL_N) {
395 fmt=0x6;
396 } else if (std == V4L2_STD_PAL_Nc) {
397 fmt=0x7;
398 } else if (std == V4L2_STD_PAL_60) {
399 fmt=0x8;
400 } else {
401 /* Then, test against generic ones */
402 if (std & V4L2_STD_NTSC) {
403 fmt=0x1;
404 } else if (std & V4L2_STD_PAL) {
405 fmt=0x4;
406 } else if (std & V4L2_STD_SECAM) {
407 fmt=0xc;
408 }
409 }
410
411 v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt);
412
413 /* Follow step 9 of section 3.16 in the cx25840 datasheet.
414 Without this PAL may display a vertical ghosting effect.
415 This happens for example with the Yuan MPC622. */
416 if (fmt >= 4 && fmt < 8) {
417 /* Set format to NTSC-M */
418 cx25840_and_or(client, 0x400, ~0xf, 1);
419 /* Turn off LCOMB */
420 cx25840_and_or(client, 0x47b, ~6, 0);
421 }
422 cx25840_and_or(client, 0x400, ~0xf, fmt);
423 cx25840_vbi_setup(client);
424 return 0;
425 }
426
427 v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
428 {
429 struct cx25840_state *state = i2c_get_clientdata(client);
430 /* check VID_FMT_SEL first */
431 u8 fmt = cx25840_read(client, 0x400) & 0xf;
432
433 if (!fmt) {
434 /* check AFD_FMT_STAT if set to autodetect */
435 fmt = cx25840_read(client, 0x40d) & 0xf;
436 }
437
438 switch (fmt) {
439 case 0x1:
440 {
441 /* if the audio std is A2-M, then this is the South Korean
442 NTSC standard */
443 if (!state->is_cx25836 && cx25840_read(client, 0x805) == 2)
444 return V4L2_STD_NTSC_M_KR;
445 return V4L2_STD_NTSC_M;
446 }
447 case 0x2: return V4L2_STD_NTSC_M_JP;
448 case 0x3: return V4L2_STD_NTSC_443;
449 case 0x4: return V4L2_STD_PAL;
450 case 0x5: return V4L2_STD_PAL_M;
451 case 0x6: return V4L2_STD_PAL_N;
452 case 0x7: return V4L2_STD_PAL_Nc;
453 case 0x8: return V4L2_STD_PAL_60;
454 case 0xc: return V4L2_STD_SECAM;
455 default: return V4L2_STD_UNKNOWN;
456 }
457 }
458
459 /* ----------------------------------------------------------------------- */
460
461 static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
462 {
463 struct cx25840_state *state = i2c_get_clientdata(client);
464
465 switch (ctrl->id) {
466 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
467 state->pvr150_workaround = ctrl->value;
468 set_input(client, state->vid_input, state->aud_input);
469 break;
470
471 case V4L2_CID_BRIGHTNESS:
472 if (ctrl->value < 0 || ctrl->value > 255) {
473 v4l_err(client, "invalid brightness setting %d\n",
474 ctrl->value);
475 return -ERANGE;
476 }
477
478 cx25840_write(client, 0x414, ctrl->value - 128);
479 break;
480
481 case V4L2_CID_CONTRAST:
482 if (ctrl->value < 0 || ctrl->value > 127) {
483 v4l_err(client, "invalid contrast setting %d\n",
484 ctrl->value);
485 return -ERANGE;
486 }
487
488 cx25840_write(client, 0x415, ctrl->value << 1);
489 break;
490
491 case V4L2_CID_SATURATION:
492 if (ctrl->value < 0 || ctrl->value > 127) {
493 v4l_err(client, "invalid saturation setting %d\n",
494 ctrl->value);
495 return -ERANGE;
496 }
497
498 cx25840_write(client, 0x420, ctrl->value << 1);
499 cx25840_write(client, 0x421, ctrl->value << 1);
500 break;
501
502 case V4L2_CID_HUE:
503 if (ctrl->value < -127 || ctrl->value > 127) {
504 v4l_err(client, "invalid hue setting %d\n", ctrl->value);
505 return -ERANGE;
506 }
507
508 cx25840_write(client, 0x422, ctrl->value);
509 break;
510
511 case V4L2_CID_AUDIO_VOLUME:
512 case V4L2_CID_AUDIO_BASS:
513 case V4L2_CID_AUDIO_TREBLE:
514 case V4L2_CID_AUDIO_BALANCE:
515 case V4L2_CID_AUDIO_MUTE:
516 if (state->is_cx25836)
517 return -EINVAL;
518 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
519
520 default:
521 return -EINVAL;
522 }
523
524 return 0;
525 }
526
527 static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
528 {
529 struct cx25840_state *state = i2c_get_clientdata(client);
530
531 switch (ctrl->id) {
532 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
533 ctrl->value = state->pvr150_workaround;
534 break;
535 case V4L2_CID_BRIGHTNESS:
536 ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
537 break;
538 case V4L2_CID_CONTRAST:
539 ctrl->value = cx25840_read(client, 0x415) >> 1;
540 break;
541 case V4L2_CID_SATURATION:
542 ctrl->value = cx25840_read(client, 0x420) >> 1;
543 break;
544 case V4L2_CID_HUE:
545 ctrl->value = (s8)cx25840_read(client, 0x422);
546 break;
547 case V4L2_CID_AUDIO_VOLUME:
548 case V4L2_CID_AUDIO_BASS:
549 case V4L2_CID_AUDIO_TREBLE:
550 case V4L2_CID_AUDIO_BALANCE:
551 case V4L2_CID_AUDIO_MUTE:
552 if (state->is_cx25836)
553 return -EINVAL;
554 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
555 default:
556 return -EINVAL;
557 }
558
559 return 0;
560 }
561
562 /* ----------------------------------------------------------------------- */
563
564 static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
565 {
566 switch (fmt->type) {
567 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
568 return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
569 default:
570 return -EINVAL;
571 }
572
573 return 0;
574 }
575
576 static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
577 {
578 struct v4l2_pix_format *pix;
579 int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
580 int is_50Hz = !(cx25840_get_v4lstd(client) & V4L2_STD_525_60);
581
582 switch (fmt->type) {
583 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
584 pix = &(fmt->fmt.pix);
585
586 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
587 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
588
589 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
590 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
591
592 Vlines = pix->height + (is_50Hz ? 4 : 7);
593
594 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
595 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
596 v4l_err(client, "%dx%d is not a valid size!\n",
597 pix->width, pix->height);
598 return -ERANGE;
599 }
600
601 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
602 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
603 VSC &= 0x1fff;
604
605 if (pix->width >= 385)
606 filter = 0;
607 else if (pix->width > 192)
608 filter = 1;
609 else if (pix->width > 96)
610 filter = 2;
611 else
612 filter = 3;
613
614 v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale %ux%u\n",
615 pix->width, pix->height, HSC, VSC);
616
617 /* HSCALE=HSC */
618 cx25840_write(client, 0x418, HSC & 0xff);
619 cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
620 cx25840_write(client, 0x41a, HSC >> 16);
621 /* VSCALE=VSC */
622 cx25840_write(client, 0x41c, VSC & 0xff);
623 cx25840_write(client, 0x41d, VSC >> 8);
624 /* VS_INTRLACE=1 VFILT=filter */
625 cx25840_write(client, 0x41e, 0x8 | filter);
626 break;
627
628 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
629 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
630
631 case V4L2_BUF_TYPE_VBI_CAPTURE:
632 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
633
634 default:
635 return -EINVAL;
636 }
637
638 return 0;
639 }
640
641 /* ----------------------------------------------------------------------- */
642
643 static void log_video_status(struct i2c_client *client)
644 {
645 static const char *const fmt_strs[] = {
646 "0x0",
647 "NTSC-M", "NTSC-J", "NTSC-4.43",
648 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
649 "0x9", "0xA", "0xB",
650 "SECAM",
651 "0xD", "0xE", "0xF"
652 };
653
654 struct cx25840_state *state = i2c_get_clientdata(client);
655 u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
656 u8 gen_stat1 = cx25840_read(client, 0x40d);
657 u8 gen_stat2 = cx25840_read(client, 0x40e);
658 int vid_input = state->vid_input;
659
660 v4l_info(client, "Video signal: %spresent\n",
661 (gen_stat2 & 0x20) ? "" : "not ");
662 v4l_info(client, "Detected format: %s\n",
663 fmt_strs[gen_stat1 & 0xf]);
664
665 v4l_info(client, "Specified standard: %s\n",
666 vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
667
668 if (vid_input >= CX25840_COMPOSITE1 &&
669 vid_input <= CX25840_COMPOSITE8) {
670 v4l_info(client, "Specified video input: Composite %d\n",
671 vid_input - CX25840_COMPOSITE1 + 1);
672 } else {
673 v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
674 (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
675 }
676
677 v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
678 }
679
680 /* ----------------------------------------------------------------------- */
681
682 static void log_audio_status(struct i2c_client *client)
683 {
684 struct cx25840_state *state = i2c_get_clientdata(client);
685 u8 download_ctl = cx25840_read(client, 0x803);
686 u8 mod_det_stat0 = cx25840_read(client, 0x804);
687 u8 mod_det_stat1 = cx25840_read(client, 0x805);
688 u8 audio_config = cx25840_read(client, 0x808);
689 u8 pref_mode = cx25840_read(client, 0x809);
690 u8 afc0 = cx25840_read(client, 0x80b);
691 u8 mute_ctl = cx25840_read(client, 0x8d3);
692 int aud_input = state->aud_input;
693 char *p;
694
695 switch (mod_det_stat0) {
696 case 0x00: p = "mono"; break;
697 case 0x01: p = "stereo"; break;
698 case 0x02: p = "dual"; break;
699 case 0x04: p = "tri"; break;
700 case 0x10: p = "mono with SAP"; break;
701 case 0x11: p = "stereo with SAP"; break;
702 case 0x12: p = "dual with SAP"; break;
703 case 0x14: p = "tri with SAP"; break;
704 case 0xfe: p = "forced mode"; break;
705 default: p = "not defined";
706 }
707 v4l_info(client, "Detected audio mode: %s\n", p);
708
709 switch (mod_det_stat1) {
710 case 0x00: p = "not defined"; break;
711 case 0x01: p = "EIAJ"; break;
712 case 0x02: p = "A2-M"; break;
713 case 0x03: p = "A2-BG"; break;
714 case 0x04: p = "A2-DK1"; break;
715 case 0x05: p = "A2-DK2"; break;
716 case 0x06: p = "A2-DK3"; break;
717 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
718 case 0x08: p = "AM-L"; break;
719 case 0x09: p = "NICAM-BG"; break;
720 case 0x0a: p = "NICAM-DK"; break;
721 case 0x0b: p = "NICAM-I"; break;
722 case 0x0c: p = "NICAM-L"; break;
723 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
724 case 0x0e: p = "IF FM Radio"; break;
725 case 0x0f: p = "BTSC"; break;
726 case 0x10: p = "high-deviation FM"; break;
727 case 0x11: p = "very high-deviation FM"; break;
728 case 0xfd: p = "unknown audio standard"; break;
729 case 0xfe: p = "forced audio standard"; break;
730 case 0xff: p = "no detected audio standard"; break;
731 default: p = "not defined";
732 }
733 v4l_info(client, "Detected audio standard: %s\n", p);
734 v4l_info(client, "Audio muted: %s\n",
735 (state->unmute_volume >= 0) ? "yes" : "no");
736 v4l_info(client, "Audio microcontroller: %s\n",
737 (download_ctl & 0x10) ?
738 ((mute_ctl & 0x2) ? "detecting" : "running") : "stopped");
739
740 switch (audio_config >> 4) {
741 case 0x00: p = "undefined"; break;
742 case 0x01: p = "BTSC"; break;
743 case 0x02: p = "EIAJ"; break;
744 case 0x03: p = "A2-M"; break;
745 case 0x04: p = "A2-BG"; break;
746 case 0x05: p = "A2-DK1"; break;
747 case 0x06: p = "A2-DK2"; break;
748 case 0x07: p = "A2-DK3"; break;
749 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
750 case 0x09: p = "AM-L"; break;
751 case 0x0a: p = "NICAM-BG"; break;
752 case 0x0b: p = "NICAM-DK"; break;
753 case 0x0c: p = "NICAM-I"; break;
754 case 0x0d: p = "NICAM-L"; break;
755 case 0x0e: p = "FM radio"; break;
756 case 0x0f: p = "automatic detection"; break;
757 default: p = "undefined";
758 }
759 v4l_info(client, "Configured audio standard: %s\n", p);
760
761 if ((audio_config >> 4) < 0xF) {
762 switch (audio_config & 0xF) {
763 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
764 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
765 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
766 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
767 case 0x04: p = "STEREO"; break;
768 case 0x05: p = "DUAL1 (AB)"; break;
769 case 0x06: p = "DUAL2 (AC) (FM)"; break;
770 case 0x07: p = "DUAL3 (BC) (FM)"; break;
771 case 0x08: p = "DUAL4 (AC) (AM)"; break;
772 case 0x09: p = "DUAL5 (BC) (AM)"; break;
773 case 0x0a: p = "SAP"; break;
774 default: p = "undefined";
775 }
776 v4l_info(client, "Configured audio mode: %s\n", p);
777 } else {
778 switch (audio_config & 0xF) {
779 case 0x00: p = "BG"; break;
780 case 0x01: p = "DK1"; break;
781 case 0x02: p = "DK2"; break;
782 case 0x03: p = "DK3"; break;
783 case 0x04: p = "I"; break;
784 case 0x05: p = "L"; break;
785 case 0x06: p = "BTSC"; break;
786 case 0x07: p = "EIAJ"; break;
787 case 0x08: p = "A2-M"; break;
788 case 0x09: p = "FM Radio"; break;
789 case 0x0f: p = "automatic standard and mode detection"; break;
790 default: p = "undefined";
791 }
792 v4l_info(client, "Configured audio system: %s\n", p);
793 }
794
795 if (aud_input) {
796 v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input);
797 } else {
798 v4l_info(client, "Specified audio input: External\n");
799 }
800
801 switch (pref_mode & 0xf) {
802 case 0: p = "mono/language A"; break;
803 case 1: p = "language B"; break;
804 case 2: p = "language C"; break;
805 case 3: p = "analog fallback"; break;
806 case 4: p = "stereo"; break;
807 case 5: p = "language AC"; break;
808 case 6: p = "language BC"; break;
809 case 7: p = "language AB"; break;
810 default: p = "undefined";
811 }
812 v4l_info(client, "Preferred audio mode: %s\n", p);
813
814 if ((audio_config & 0xf) == 0xf) {
815 switch ((afc0 >> 3) & 0x3) {
816 case 0: p = "system DK"; break;
817 case 1: p = "system L"; break;
818 case 2: p = "autodetect"; break;
819 default: p = "undefined";
820 }
821 v4l_info(client, "Selected 65 MHz format: %s\n", p);
822
823 switch (afc0 & 0x7) {
824 case 0: p = "chroma"; break;
825 case 1: p = "BTSC"; break;
826 case 2: p = "EIAJ"; break;
827 case 3: p = "A2-M"; break;
828 case 4: p = "autodetect"; break;
829 default: p = "undefined";
830 }
831 v4l_info(client, "Selected 45 MHz format: %s\n", p);
832 }
833 }
834
835 /* ----------------------------------------------------------------------- */
836
837 static int cx25840_command(struct i2c_client *client, unsigned int cmd,
838 void *arg)
839 {
840 struct cx25840_state *state = i2c_get_clientdata(client);
841 struct v4l2_tuner *vt = arg;
842 struct v4l2_routing *route = arg;
843
844 /* ignore these commands */
845 switch (cmd) {
846 case TUNER_SET_TYPE_ADDR:
847 return 0;
848 }
849
850 if (!state->is_initialized) {
851 v4l_dbg(1, cx25840_debug, client, "cmd %08x triggered fw load\n", cmd);
852 /* initialize on first use */
853 state->is_initialized = 1;
854 if (state->is_cx25836)
855 cx25836_initialize(client);
856 else
857 cx25840_initialize(client);
858 }
859
860 switch (cmd) {
861 #ifdef CONFIG_VIDEO_ADV_DEBUG
862 /* ioctls to allow direct access to the
863 * cx25840 registers for testing */
864 case VIDIOC_DBG_G_REGISTER:
865 case VIDIOC_DBG_S_REGISTER:
866 {
867 struct v4l2_register *reg = arg;
868
869 if (!v4l2_chip_match_i2c_client(client, reg->match_type, reg->match_chip))
870 return -EINVAL;
871 if (!capable(CAP_SYS_ADMIN))
872 return -EPERM;
873 if (cmd == VIDIOC_DBG_G_REGISTER)
874 reg->val = cx25840_read(client, reg->reg & 0x0fff);
875 else
876 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
877 break;
878 }
879 #endif
880
881 case VIDIOC_INT_DECODE_VBI_LINE:
882 return cx25840_vbi(client, cmd, arg);
883
884 case VIDIOC_INT_AUDIO_CLOCK_FREQ:
885 return cx25840_audio(client, cmd, arg);
886
887 case VIDIOC_STREAMON:
888 v4l_dbg(1, cx25840_debug, client, "enable output\n");
889 cx25840_write(client, 0x115, state->is_cx25836 ? 0x0c : 0x8c);
890 cx25840_write(client, 0x116, state->is_cx25836 ? 0x04 : 0x07);
891 break;
892
893 case VIDIOC_STREAMOFF:
894 v4l_dbg(1, cx25840_debug, client, "disable output\n");
895 cx25840_write(client, 0x115, 0x00);
896 cx25840_write(client, 0x116, 0x00);
897 break;
898
899 case VIDIOC_LOG_STATUS:
900 log_video_status(client);
901 if (!state->is_cx25836)
902 log_audio_status(client);
903 break;
904
905 case VIDIOC_G_CTRL:
906 return get_v4lctrl(client, (struct v4l2_control *)arg);
907
908 case VIDIOC_S_CTRL:
909 return set_v4lctrl(client, (struct v4l2_control *)arg);
910
911 case VIDIOC_QUERYCTRL:
912 {
913 struct v4l2_queryctrl *qc = arg;
914
915 switch (qc->id) {
916 case V4L2_CID_BRIGHTNESS:
917 case V4L2_CID_CONTRAST:
918 case V4L2_CID_SATURATION:
919 case V4L2_CID_HUE:
920 return v4l2_ctrl_query_fill_std(qc);
921 default:
922 break;
923 }
924 if (state->is_cx25836)
925 return -EINVAL;
926
927 switch (qc->id) {
928 case V4L2_CID_AUDIO_VOLUME:
929 case V4L2_CID_AUDIO_MUTE:
930 case V4L2_CID_AUDIO_BALANCE:
931 case V4L2_CID_AUDIO_BASS:
932 case V4L2_CID_AUDIO_TREBLE:
933 return v4l2_ctrl_query_fill_std(qc);
934 default:
935 return -EINVAL;
936 }
937 return -EINVAL;
938 }
939
940 case VIDIOC_G_STD:
941 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
942 break;
943
944 case VIDIOC_S_STD:
945 state->radio = 0;
946 return set_v4lstd(client, *(v4l2_std_id *)arg);
947
948 case AUDC_SET_RADIO:
949 state->radio = 1;
950 break;
951
952 case VIDIOC_INT_G_VIDEO_ROUTING:
953 route->input = state->vid_input;
954 route->output = 0;
955 break;
956
957 case VIDIOC_INT_S_VIDEO_ROUTING:
958 return set_input(client, route->input, state->aud_input);
959
960 case VIDIOC_INT_G_AUDIO_ROUTING:
961 if (state->is_cx25836)
962 return -EINVAL;
963 route->input = state->aud_input;
964 route->output = 0;
965 break;
966
967 case VIDIOC_INT_S_AUDIO_ROUTING:
968 if (state->is_cx25836)
969 return -EINVAL;
970 return set_input(client, state->vid_input, route->input);
971
972 case VIDIOC_S_FREQUENCY:
973 if (!state->is_cx25836) {
974 input_change(client);
975 }
976 break;
977
978 case VIDIOC_G_TUNER:
979 {
980 u8 vpres = cx25840_read(client, 0x40e) & 0x20;
981 u8 mode;
982 int val = 0;
983
984 if (state->radio)
985 break;
986
987 vt->signal = vpres ? 0xffff : 0x0;
988 if (state->is_cx25836)
989 break;
990
991 vt->capability |=
992 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
993 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
994
995 mode = cx25840_read(client, 0x804);
996
997 /* get rxsubchans and audmode */
998 if ((mode & 0xf) == 1)
999 val |= V4L2_TUNER_SUB_STEREO;
1000 else
1001 val |= V4L2_TUNER_SUB_MONO;
1002
1003 if (mode == 2 || mode == 4)
1004 val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1005
1006 if (mode & 0x10)
1007 val |= V4L2_TUNER_SUB_SAP;
1008
1009 vt->rxsubchans = val;
1010 vt->audmode = state->audmode;
1011 break;
1012 }
1013
1014 case VIDIOC_S_TUNER:
1015 if (state->radio || state->is_cx25836)
1016 break;
1017
1018 switch (vt->audmode) {
1019 case V4L2_TUNER_MODE_MONO:
1020 /* mono -> mono
1021 stereo -> mono
1022 bilingual -> lang1 */
1023 cx25840_and_or(client, 0x809, ~0xf, 0x00);
1024 break;
1025 case V4L2_TUNER_MODE_STEREO:
1026 case V4L2_TUNER_MODE_LANG1:
1027 /* mono -> mono
1028 stereo -> stereo
1029 bilingual -> lang1 */
1030 cx25840_and_or(client, 0x809, ~0xf, 0x04);
1031 break;
1032 case V4L2_TUNER_MODE_LANG1_LANG2:
1033 /* mono -> mono
1034 stereo -> stereo
1035 bilingual -> lang1/lang2 */
1036 cx25840_and_or(client, 0x809, ~0xf, 0x07);
1037 break;
1038 case V4L2_TUNER_MODE_LANG2:
1039 /* mono -> mono
1040 stereo -> stereo
1041 bilingual -> lang2 */
1042 cx25840_and_or(client, 0x809, ~0xf, 0x01);
1043 break;
1044 default:
1045 return -EINVAL;
1046 }
1047 state->audmode = vt->audmode;
1048 break;
1049
1050 case VIDIOC_G_FMT:
1051 return get_v4lfmt(client, (struct v4l2_format *)arg);
1052
1053 case VIDIOC_S_FMT:
1054 return set_v4lfmt(client, (struct v4l2_format *)arg);
1055
1056 case VIDIOC_INT_RESET:
1057 if (state->is_cx25836)
1058 cx25836_initialize(client);
1059 else
1060 cx25840_initialize(client);
1061 break;
1062
1063 case VIDIOC_G_CHIP_IDENT:
1064 return v4l2_chip_ident_i2c_client(client, arg, state->id, state->rev);
1065
1066 default:
1067 return -EINVAL;
1068 }
1069
1070 return 0;
1071 }
1072
1073 /* ----------------------------------------------------------------------- */
1074
1075 static int cx25840_probe(struct i2c_client *client)
1076 {
1077 struct cx25840_state *state;
1078 u32 id;
1079 u16 device_id;
1080
1081 /* Check if the adapter supports the needed features */
1082 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1083 return -EIO;
1084
1085 v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", client->addr << 1);
1086
1087 device_id = cx25840_read(client, 0x101) << 8;
1088 device_id |= cx25840_read(client, 0x100);
1089
1090 /* The high byte of the device ID should be
1091 * 0x83 for the cx2583x and 0x84 for the cx2584x */
1092 if ((device_id & 0xff00) == 0x8300) {
1093 id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
1094 }
1095 else if ((device_id & 0xff00) == 0x8400) {
1096 id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
1097 }
1098 else {
1099 v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
1100 return -ENODEV;
1101 }
1102
1103 state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
1104 if (state == NULL) {
1105 return -ENOMEM;
1106 }
1107
1108 /* Note: revision '(device_id & 0x0f) == 2' was never built. The
1109 marking skips from 0x1 == 22 to 0x3 == 23. */
1110 v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
1111 (device_id & 0xfff0) >> 4,
1112 (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : (device_id & 0x0f),
1113 client->addr << 1, client->adapter->name);
1114
1115 i2c_set_clientdata(client, state);
1116 state->c = client;
1117 state->is_cx25836 = ((device_id & 0xff00) == 0x8300);
1118 state->vid_input = CX25840_COMPOSITE7;
1119 state->aud_input = CX25840_AUDIO8;
1120 state->audclk_freq = 48000;
1121 state->pvr150_workaround = 0;
1122 state->audmode = V4L2_TUNER_MODE_LANG1;
1123 state->unmute_volume = -1;
1124 state->vbi_line_offset = 8;
1125 state->id = id;
1126 state->rev = device_id;
1127 return 0;
1128 }
1129
1130 static int cx25840_remove(struct i2c_client *client)
1131 {
1132 kfree(i2c_get_clientdata(client));
1133 return 0;
1134 }
1135
1136 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
1137 .name = "cx25840",
1138 .driverid = I2C_DRIVERID_CX25840,
1139 .command = cx25840_command,
1140 .probe = cx25840_probe,
1141 .remove = cx25840_remove,
1142 };
Verdex Pro support