1 /* cx25840 - Conexant CX25840 audio/video decoder driver
3 * Copyright (C) 2004 Ulf Eklund
5 * Based on the saa7115 driver and on the first verison of Chris Kennedy's
8 * Changes by Tyler Trafford <tatrafford@comcast.net>
9 * - cleanup/rewrite for V4L2 API (2005)
11 * VBI support by Hans Verkuil <hverkuil@xs4all.nl>.
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.
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.
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.
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>
38 MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
39 MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford");
40 MODULE_LICENSE("GPL");
42 static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
45 static int cx25840_debug;
47 module_param_named(debug,cx25840_debug, int, 0644);
49 MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]");
53 /* ----------------------------------------------------------------------- */
55 int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
58 buffer[0] = addr >> 8;
59 buffer[1] = addr & 0xff;
61 return i2c_master_send(client, buffer, 3);
64 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
67 buffer[0] = addr >> 8;
68 buffer[1] = addr & 0xff;
69 buffer[2] = value >> 24;
70 buffer[3] = (value >> 16) & 0xff;
71 buffer[4] = (value >> 8) & 0xff;
72 buffer[5] = value & 0xff;
73 return i2c_master_send(client, buffer, 6);
76 u8 cx25840_read(struct i2c_client * client, u16 addr)
79 buffer[0] = addr >> 8;
80 buffer[1] = addr & 0xff;
82 if (i2c_master_send(client, buffer, 2) < 2)
85 if (i2c_master_recv(client, buffer, 1) < 1)
91 u32 cx25840_read4(struct i2c_client * client, u16 addr)
94 buffer[0] = addr >> 8;
95 buffer[1] = addr & 0xff;
97 if (i2c_master_send(client, buffer, 2) < 2)
100 if (i2c_master_recv(client, buffer, 4) < 4)
103 return (buffer[0] << 24) | (buffer[1] << 16) |
104 (buffer[2] << 8) | buffer[3];
107 int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
110 return cx25840_write(client, addr,
111 (cx25840_read(client, addr) & and_mask) |
115 /* ----------------------------------------------------------------------- */
117 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
118 enum cx25840_audio_input aud_input);
119 static void log_status(struct i2c_client *client);
121 /* ----------------------------------------------------------------------- */
123 static void init_dll1(struct i2c_client *client)
125 /* This is the Hauppauge sequence used to
126 * initialize the Delay Lock Loop 1 (ADC DLL). */
127 cx25840_write(client, 0x159, 0x23);
128 cx25840_write(client, 0x15a, 0x87);
129 cx25840_write(client, 0x15b, 0x06);
130 cx25840_write(client, 0x159, 0xe1);
131 cx25840_write(client, 0x15a, 0x86);
132 cx25840_write(client, 0x159, 0xe0);
133 cx25840_write(client, 0x159, 0xe1);
134 cx25840_write(client, 0x15b, 0x10);
137 static void init_dll2(struct i2c_client *client)
139 /* This is the Hauppauge sequence used to
140 * initialize the Delay Lock Loop 2 (ADC DLL). */
141 cx25840_write(client, 0x15d, 0xe3);
142 cx25840_write(client, 0x15e, 0x86);
143 cx25840_write(client, 0x15f, 0x06);
144 cx25840_write(client, 0x15d, 0xe1);
145 cx25840_write(client, 0x15d, 0xe0);
146 cx25840_write(client, 0x15d, 0xe1);
149 static void cx25840_initialize(struct i2c_client *client, int loadfw)
151 struct cx25840_state *state = i2c_get_clientdata(client);
153 /* datasheet startup in numbered steps, refer to page 3-77 */
155 cx25840_and_or(client, 0x803, ~0x10, 0x00);
156 /* The default of this register should be 4, but I get 0 instead.
157 * Set this register to 4 manually. */
158 cx25840_write(client, 0x000, 0x04);
162 cx25840_write(client, 0x136, 0x0a);
164 cx25840_write(client, 0x13c, 0x01);
165 cx25840_write(client, 0x13c, 0x00);
168 cx25840_loadfw(client);
170 cx25840_write(client, 0x115, 0x8c);
171 cx25840_write(client, 0x116, 0x07);
172 cx25840_write(client, 0x118, 0x02);
174 cx25840_write(client, 0x4a5, 0x80);
175 cx25840_write(client, 0x4a5, 0x00);
176 cx25840_write(client, 0x402, 0x00);
178 cx25840_and_or(client, 0x401, ~0x18, 0);
179 cx25840_and_or(client, 0x4a2, ~0x10, 0x10);
180 /* steps 8c and 8d are done in change_input() */
182 cx25840_write(client, 0x8d3, 0x1f);
183 cx25840_write(client, 0x8e3, 0x03);
185 cx25840_vbi_setup(client);
187 /* trial and error says these are needed to get audio */
188 cx25840_write(client, 0x914, 0xa0);
189 cx25840_write(client, 0x918, 0xa0);
190 cx25840_write(client, 0x919, 0x01);
192 /* stereo prefered */
193 cx25840_write(client, 0x809, 0x04);
195 cx25840_write(client, 0x8cf, 0x0f);
198 set_input(client, state->vid_input, state->aud_input);
200 /* start microcontroller */
201 cx25840_and_or(client, 0x803, ~0x10, 0x10);
204 /* ----------------------------------------------------------------------- */
206 static void input_change(struct i2c_client *client)
208 struct cx25840_state *state = i2c_get_clientdata(client);
209 v4l2_std_id std = cx25840_get_v4lstd(client);
211 /* Follow step 8c and 8d of section 3.16 in the cx25840 datasheet */
212 if (std & V4L2_STD_SECAM) {
213 cx25840_write(client, 0x402, 0);
216 cx25840_write(client, 0x402, 0x04);
217 cx25840_write(client, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
219 cx25840_and_or(client, 0x401, ~0x60, 0);
220 cx25840_and_or(client, 0x401, ~0x60, 0x60);
222 /* Note: perhaps V4L2_STD_PAL_M should be handled as V4L2_STD_NTSC
223 instead of V4L2_STD_PAL. Someone needs to test this. */
224 if (std & V4L2_STD_PAL) {
225 /* Follow tuner change procedure for PAL */
226 cx25840_write(client, 0x808, 0xff);
227 cx25840_write(client, 0x80b, 0x10);
228 } else if (std & V4L2_STD_SECAM) {
229 /* Select autodetect for SECAM */
230 cx25840_write(client, 0x808, 0xff);
231 cx25840_write(client, 0x80b, 0x10);
232 } else if (std & V4L2_STD_NTSC) {
233 /* Certain Hauppauge PVR150 models have a hardware bug
234 that causes audio to drop out. For these models the
235 audio standard must be set explicitly.
236 To be precise: it affects cards with tuner models
237 85, 99 and 112 (model numbers from tveeprom). */
238 int hw_fix = state->pvr150_workaround;
240 if (std == V4L2_STD_NTSC_M_JP) {
241 /* Japan uses EIAJ audio standard */
242 cx25840_write(client, 0x808, hw_fix ? 0x2f : 0xf7);
243 } else if (std == V4L2_STD_NTSC_M_KR) {
244 /* South Korea uses A2 audio standard */
245 cx25840_write(client, 0x808, hw_fix ? 0x3f : 0xf8);
247 /* Others use the BTSC audio standard */
248 cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6);
250 cx25840_write(client, 0x80b, 0x00);
253 if (cx25840_read(client, 0x803) & 0x10) {
254 /* restart audio decoder microcontroller */
255 cx25840_and_or(client, 0x803, ~0x10, 0x00);
256 cx25840_and_or(client, 0x803, ~0x10, 0x10);
260 static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
261 enum cx25840_audio_input aud_input)
263 struct cx25840_state *state = i2c_get_clientdata(client);
264 u8 is_composite = (vid_input >= CX25840_COMPOSITE1 &&
265 vid_input <= CX25840_COMPOSITE8);
268 v4l_dbg(1, cx25840_debug, client, "decoder set video input %d, audio input %d\n",
269 vid_input, aud_input);
272 reg = 0xf0 + (vid_input - CX25840_COMPOSITE1);
274 int luma = vid_input & 0xf0;
275 int chroma = vid_input & 0xf00;
277 if ((vid_input & ~0xff0) ||
278 luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 ||
279 chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) {
280 v4l_err(client, "0x%04x is not a valid video input!\n", vid_input);
283 reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4);
284 if (chroma >= CX25840_SVIDEO_CHROMA7) {
286 reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2;
289 reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4;
294 case CX25840_AUDIO_SERIAL:
295 /* do nothing, use serial audio input */
297 case CX25840_AUDIO4: reg &= ~0x30; break;
298 case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
299 case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
300 case CX25840_AUDIO7: reg &= ~0xc0; break;
301 case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
304 v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input);
308 cx25840_write(client, 0x103, reg);
309 /* Set INPUT_MODE to Composite (0) or S-Video (1) */
310 cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02);
311 /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
312 cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0);
313 /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
314 if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
315 cx25840_and_or(client, 0x102, ~0x4, 4);
317 cx25840_and_or(client, 0x102, ~0x4, 0);
319 state->vid_input = vid_input;
320 state->aud_input = aud_input;
321 cx25840_audio_set_path(client);
322 input_change(client);
326 /* ----------------------------------------------------------------------- */
328 static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
330 u8 fmt=0; /* zero is autodetect */
332 /* First tests should be against specific std */
333 if (std == V4L2_STD_NTSC_M_JP) {
335 } else if (std == V4L2_STD_NTSC_443) {
337 } else if (std == V4L2_STD_PAL_M) {
339 } else if (std == V4L2_STD_PAL_N) {
341 } else if (std == V4L2_STD_PAL_Nc) {
343 } else if (std == V4L2_STD_PAL_60) {
346 /* Then, test against generic ones */
347 if (std & V4L2_STD_NTSC) {
349 } else if (std & V4L2_STD_PAL) {
351 } else if (std & V4L2_STD_SECAM) {
356 /* Follow step 9 of section 3.16 in the cx25840 datasheet.
357 Without this PAL may display a vertical ghosting effect.
358 This happens for example with the Yuan MPC622. */
359 if (fmt >= 4 && fmt < 8) {
360 /* Set format to NTSC-M */
361 cx25840_and_or(client, 0x400, ~0xf, 1);
363 cx25840_and_or(client, 0x47b, ~6, 0);
365 cx25840_and_or(client, 0x400, ~0xf, fmt);
366 cx25840_vbi_setup(client);
370 v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
372 /* check VID_FMT_SEL first */
373 u8 fmt = cx25840_read(client, 0x400) & 0xf;
376 /* check AFD_FMT_STAT if set to autodetect */
377 fmt = cx25840_read(client, 0x40d) & 0xf;
383 /* if the audio std is A2-M, then this is the South Korean
385 if (cx25840_read(client, 0x805) == 2)
386 return V4L2_STD_NTSC_M_KR;
387 return V4L2_STD_NTSC_M;
389 case 0x2: return V4L2_STD_NTSC_M_JP;
390 case 0x3: return V4L2_STD_NTSC_443;
391 case 0x4: return V4L2_STD_PAL;
392 case 0x5: return V4L2_STD_PAL_M;
393 case 0x6: return V4L2_STD_PAL_N;
394 case 0x7: return V4L2_STD_PAL_Nc;
395 case 0x8: return V4L2_STD_PAL_60;
396 case 0xc: return V4L2_STD_SECAM;
397 default: return V4L2_STD_UNKNOWN;
401 /* ----------------------------------------------------------------------- */
403 static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
405 struct cx25840_state *state = i2c_get_clientdata(client);
408 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
409 state->pvr150_workaround = ctrl->value;
410 set_input(client, state->vid_input, state->aud_input);
413 case V4L2_CID_BRIGHTNESS:
414 if (ctrl->value < 0 || ctrl->value > 255) {
415 v4l_err(client, "invalid brightness setting %d\n",
420 cx25840_write(client, 0x414, ctrl->value - 128);
423 case V4L2_CID_CONTRAST:
424 if (ctrl->value < 0 || ctrl->value > 127) {
425 v4l_err(client, "invalid contrast setting %d\n",
430 cx25840_write(client, 0x415, ctrl->value << 1);
433 case V4L2_CID_SATURATION:
434 if (ctrl->value < 0 || ctrl->value > 127) {
435 v4l_err(client, "invalid saturation setting %d\n",
440 cx25840_write(client, 0x420, ctrl->value << 1);
441 cx25840_write(client, 0x421, ctrl->value << 1);
445 if (ctrl->value < -127 || ctrl->value > 127) {
446 v4l_err(client, "invalid hue setting %d\n", ctrl->value);
450 cx25840_write(client, 0x422, ctrl->value);
453 case V4L2_CID_AUDIO_VOLUME:
454 case V4L2_CID_AUDIO_BASS:
455 case V4L2_CID_AUDIO_TREBLE:
456 case V4L2_CID_AUDIO_BALANCE:
457 case V4L2_CID_AUDIO_MUTE:
458 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
467 static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
469 struct cx25840_state *state = i2c_get_clientdata(client);
472 case CX25840_CID_ENABLE_PVR150_WORKAROUND:
473 ctrl->value = state->pvr150_workaround;
475 case V4L2_CID_BRIGHTNESS:
476 ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
478 case V4L2_CID_CONTRAST:
479 ctrl->value = cx25840_read(client, 0x415) >> 1;
481 case V4L2_CID_SATURATION:
482 ctrl->value = cx25840_read(client, 0x420) >> 1;
485 ctrl->value = (s8)cx25840_read(client, 0x422);
487 case V4L2_CID_AUDIO_VOLUME:
488 case V4L2_CID_AUDIO_BASS:
489 case V4L2_CID_AUDIO_TREBLE:
490 case V4L2_CID_AUDIO_BALANCE:
491 case V4L2_CID_AUDIO_MUTE:
492 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
500 /* ----------------------------------------------------------------------- */
502 static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
505 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
506 return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
514 static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
516 struct v4l2_pix_format *pix;
517 int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
518 int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_NTSC);
521 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
522 pix = &(fmt->fmt.pix);
524 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
525 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
527 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
528 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
530 Vlines = pix->height + (is_pal ? 4 : 7);
532 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
533 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
534 v4l_err(client, "%dx%d is not a valid size!\n",
535 pix->width, pix->height);
539 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
540 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
543 if (pix->width >= 385)
545 else if (pix->width > 192)
547 else if (pix->width > 96)
552 v4l_dbg(1, cx25840_debug, client, "decoder set size %dx%d -> scale %ux%u\n",
553 pix->width, pix->height, HSC, VSC);
556 cx25840_write(client, 0x418, HSC & 0xff);
557 cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
558 cx25840_write(client, 0x41a, HSC >> 16);
560 cx25840_write(client, 0x41c, VSC & 0xff);
561 cx25840_write(client, 0x41d, VSC >> 8);
562 /* VS_INTRLACE=1 VFILT=filter */
563 cx25840_write(client, 0x41e, 0x8 | filter);
566 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
567 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
569 case V4L2_BUF_TYPE_VBI_CAPTURE:
570 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
579 /* ----------------------------------------------------------------------- */
581 static struct v4l2_queryctrl cx25840_qctrl[] = {
583 .id = V4L2_CID_BRIGHTNESS,
584 .type = V4L2_CTRL_TYPE_INTEGER,
585 .name = "Brightness",
589 .default_value = 128,
592 .id = V4L2_CID_CONTRAST,
593 .type = V4L2_CTRL_TYPE_INTEGER,
601 .id = V4L2_CID_SATURATION,
602 .type = V4L2_CTRL_TYPE_INTEGER,
603 .name = "Saturation",
611 .type = V4L2_CTRL_TYPE_INTEGER,
619 .id = V4L2_CID_AUDIO_VOLUME,
620 .type = V4L2_CTRL_TYPE_INTEGER,
625 .default_value = 58880,
628 .id = V4L2_CID_AUDIO_BALANCE,
629 .type = V4L2_CTRL_TYPE_INTEGER,
634 .default_value = 32768,
637 .id = V4L2_CID_AUDIO_MUTE,
638 .type = V4L2_CTRL_TYPE_BOOLEAN,
646 .id = V4L2_CID_AUDIO_BASS,
647 .type = V4L2_CTRL_TYPE_INTEGER,
652 .default_value = 32768,
654 .id = V4L2_CID_AUDIO_TREBLE,
655 .type = V4L2_CTRL_TYPE_INTEGER,
660 .default_value = 32768,
664 /* ----------------------------------------------------------------------- */
666 static int cx25840_command(struct i2c_client *client, unsigned int cmd,
669 struct cx25840_state *state = i2c_get_clientdata(client);
670 struct v4l2_tuner *vt = arg;
673 #ifdef CONFIG_VIDEO_ADV_DEBUG
674 /* ioctls to allow direct access to the
675 * cx25840 registers for testing */
676 case VIDIOC_INT_G_REGISTER:
678 struct v4l2_register *reg = arg;
680 if (reg->i2c_id != I2C_DRIVERID_CX25840)
682 reg->val = cx25840_read(client, reg->reg & 0x0fff);
686 case VIDIOC_INT_S_REGISTER:
688 struct v4l2_register *reg = arg;
690 if (reg->i2c_id != I2C_DRIVERID_CX25840)
692 if (!capable(CAP_SYS_ADMIN))
694 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
699 case VIDIOC_INT_DECODE_VBI_LINE:
700 return cx25840_vbi(client, cmd, arg);
702 case VIDIOC_INT_AUDIO_CLOCK_FREQ:
703 return cx25840_audio(client, cmd, arg);
705 case VIDIOC_STREAMON:
706 v4l_dbg(1, cx25840_debug, client, "enable output\n");
707 cx25840_write(client, 0x115, 0x8c);
708 cx25840_write(client, 0x116, 0x07);
711 case VIDIOC_STREAMOFF:
712 v4l_dbg(1, cx25840_debug, client, "disable output\n");
713 cx25840_write(client, 0x115, 0x00);
714 cx25840_write(client, 0x116, 0x00);
717 case VIDIOC_LOG_STATUS:
722 return get_v4lctrl(client, (struct v4l2_control *)arg);
725 return set_v4lctrl(client, (struct v4l2_control *)arg);
727 case VIDIOC_QUERYCTRL:
729 struct v4l2_queryctrl *qc = arg;
732 for (i = 0; i < ARRAY_SIZE(cx25840_qctrl); i++)
733 if (qc->id && qc->id == cx25840_qctrl[i].id) {
734 memcpy(qc, &cx25840_qctrl[i], sizeof(*qc));
741 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
746 return set_v4lstd(client, *(v4l2_std_id *)arg);
753 *(int *)arg = state->vid_input;
757 return set_input(client, *(enum cx25840_video_input *)arg, state->aud_input);
761 struct v4l2_audio *input = arg;
763 return set_input(client, state->vid_input, input->index);
766 case VIDIOC_S_FREQUENCY:
767 input_change(client);
772 u8 mode = cx25840_read(client, 0x804);
773 u8 vpres = cx25840_read(client, 0x80a) & 0x10;
780 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
781 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
783 vt->signal = vpres ? 0xffff : 0x0;
785 /* get rxsubchans and audmode */
786 if ((mode & 0xf) == 1)
787 val |= V4L2_TUNER_SUB_STEREO;
789 val |= V4L2_TUNER_SUB_MONO;
791 if (mode == 2 || mode == 4)
792 val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
795 val |= V4L2_TUNER_SUB_SAP;
797 vt->rxsubchans = val;
798 vt->audmode = state->audmode;
806 switch (vt->audmode) {
807 case V4L2_TUNER_MODE_MONO:
810 bilingual -> lang1 */
811 cx25840_and_or(client, 0x809, ~0xf, 0x00);
813 case V4L2_TUNER_MODE_LANG1:
816 bilingual -> lang1 */
817 cx25840_and_or(client, 0x809, ~0xf, 0x04);
819 case V4L2_TUNER_MODE_STEREO:
822 bilingual -> lang1/lang2 */
823 cx25840_and_or(client, 0x809, ~0xf, 0x07);
825 case V4L2_TUNER_MODE_LANG2:
828 bilingual -> lang2 */
829 cx25840_and_or(client, 0x809, ~0xf, 0x01);
834 state->audmode = vt->audmode;
838 return get_v4lfmt(client, (struct v4l2_format *)arg);
841 return set_v4lfmt(client, (struct v4l2_format *)arg);
843 case VIDIOC_INT_RESET:
844 cx25840_initialize(client, 0);
847 case VIDIOC_INT_G_CHIP_IDENT:
848 *(enum v4l2_chip_ident *)arg =
849 V4L2_IDENT_CX25840 + ((cx25840_read(client, 0x100) >> 4) & 0xf);
859 /* ----------------------------------------------------------------------- */
861 static struct i2c_driver i2c_driver_cx25840;
863 static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
866 struct i2c_client *client;
867 struct cx25840_state *state;
870 /* Check if the adapter supports the needed features
871 * Not until kernel version 2.6.11 did the bit-algo
872 * correctly report that it would do an I2C-level xfer */
873 if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
876 client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
880 client->addr = address;
881 client->adapter = adapter;
882 client->driver = &i2c_driver_cx25840;
883 snprintf(client->name, sizeof(client->name) - 1, "cx25840");
885 v4l_dbg(1, cx25840_debug, client, "detecting cx25840 client on address 0x%x\n", address << 1);
887 device_id = cx25840_read(client, 0x101) << 8;
888 device_id |= cx25840_read(client, 0x100);
890 /* The high byte of the device ID should be
891 * 0x84 if chip is present */
892 if ((device_id & 0xff00) != 0x8400) {
893 v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
898 v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n",
899 (device_id & 0xfff0) >> 4,
900 (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : 3,
901 address << 1, adapter->name);
903 state = kmalloc(sizeof(struct cx25840_state), GFP_KERNEL);
909 i2c_set_clientdata(client, state);
910 memset(state, 0, sizeof(struct cx25840_state));
911 state->vid_input = CX25840_COMPOSITE7;
912 state->aud_input = CX25840_AUDIO8;
913 state->audclk_freq = 48000;
914 state->pvr150_workaround = 0;
915 state->audmode = V4L2_TUNER_MODE_LANG1;
917 cx25840_initialize(client, 1);
919 i2c_attach_client(client);
924 static int cx25840_attach_adapter(struct i2c_adapter *adapter)
926 if (adapter->class & I2C_CLASS_TV_ANALOG)
927 return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
931 static int cx25840_detach_client(struct i2c_client *client)
933 struct cx25840_state *state = i2c_get_clientdata(client);
936 err = i2c_detach_client(client);
947 /* ----------------------------------------------------------------------- */
949 static struct i2c_driver i2c_driver_cx25840 = {
953 .id = I2C_DRIVERID_CX25840,
954 .attach_adapter = cx25840_attach_adapter,
955 .detach_client = cx25840_detach_client,
956 .command = cx25840_command,
960 static int __init m__init(void)
962 return i2c_add_driver(&i2c_driver_cx25840);
965 static void __exit m__exit(void)
967 i2c_del_driver(&i2c_driver_cx25840);
970 module_init(m__init);
971 module_exit(m__exit);
973 /* ----------------------------------------------------------------------- */
975 static void log_status(struct i2c_client *client)
977 static const char *const fmt_strs[] = {
979 "NTSC-M", "NTSC-J", "NTSC-4.43",
980 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
986 struct cx25840_state *state = i2c_get_clientdata(client);
987 u8 microctrl_vidfmt = cx25840_read(client, 0x80a);
988 u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
989 u8 gen_stat1 = cx25840_read(client, 0x40d);
990 u8 download_ctl = cx25840_read(client, 0x803);
991 u8 mod_det_stat0 = cx25840_read(client, 0x804);
992 u8 mod_det_stat1 = cx25840_read(client, 0x805);
993 u8 audio_config = cx25840_read(client, 0x808);
994 u8 pref_mode = cx25840_read(client, 0x809);
995 u8 afc0 = cx25840_read(client, 0x80b);
996 u8 mute_ctl = cx25840_read(client, 0x8d3);
997 int vid_input = state->vid_input;
998 int aud_input = state->aud_input;
1001 v4l_info(client, "Video signal: %spresent\n",
1002 (microctrl_vidfmt & 0x10) ? "" : "not ");
1003 v4l_info(client, "Detected format: %s\n",
1004 fmt_strs[gen_stat1 & 0xf]);
1006 switch (mod_det_stat0) {
1007 case 0x00: p = "mono"; break;
1008 case 0x01: p = "stereo"; break;
1009 case 0x02: p = "dual"; break;
1010 case 0x04: p = "tri"; break;
1011 case 0x10: p = "mono with SAP"; break;
1012 case 0x11: p = "stereo with SAP"; break;
1013 case 0x12: p = "dual with SAP"; break;
1014 case 0x14: p = "tri with SAP"; break;
1015 case 0xfe: p = "forced mode"; break;
1016 default: p = "not defined";
1018 v4l_info(client, "Detected audio mode: %s\n", p);
1020 switch (mod_det_stat1) {
1021 case 0x00: p = "not defined"; break;
1022 case 0x01: p = "EIAJ"; break;
1023 case 0x02: p = "A2-M"; break;
1024 case 0x03: p = "A2-BG"; break;
1025 case 0x04: p = "A2-DK1"; break;
1026 case 0x05: p = "A2-DK2"; break;
1027 case 0x06: p = "A2-DK3"; break;
1028 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
1029 case 0x08: p = "AM-L"; break;
1030 case 0x09: p = "NICAM-BG"; break;
1031 case 0x0a: p = "NICAM-DK"; break;
1032 case 0x0b: p = "NICAM-I"; break;
1033 case 0x0c: p = "NICAM-L"; break;
1034 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
1035 case 0x0e: p = "IF FM Radio"; break;
1036 case 0x0f: p = "BTSC"; break;
1037 case 0x10: p = "high-deviation FM"; break;
1038 case 0x11: p = "very high-deviation FM"; break;
1039 case 0xfd: p = "unknown audio standard"; break;
1040 case 0xfe: p = "forced audio standard"; break;
1041 case 0xff: p = "no detected audio standard"; break;
1042 default: p = "not defined";
1044 v4l_info(client, "Detected audio standard: %s\n", p);
1045 v4l_info(client, "Audio muted: %s\n",
1046 (mute_ctl & 0x2) ? "yes" : "no");
1047 v4l_info(client, "Audio microcontroller: %s\n",
1048 (download_ctl & 0x10) ? "running" : "stopped");
1050 switch (audio_config >> 4) {
1051 case 0x00: p = "undefined"; break;
1052 case 0x01: p = "BTSC"; break;
1053 case 0x02: p = "EIAJ"; break;
1054 case 0x03: p = "A2-M"; break;
1055 case 0x04: p = "A2-BG"; break;
1056 case 0x05: p = "A2-DK1"; break;
1057 case 0x06: p = "A2-DK2"; break;
1058 case 0x07: p = "A2-DK3"; break;
1059 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
1060 case 0x09: p = "AM-L"; break;
1061 case 0x0a: p = "NICAM-BG"; break;
1062 case 0x0b: p = "NICAM-DK"; break;
1063 case 0x0c: p = "NICAM-I"; break;
1064 case 0x0d: p = "NICAM-L"; break;
1065 case 0x0e: p = "FM radio"; break;
1066 case 0x0f: p = "automatic detection"; break;
1067 default: p = "undefined";
1069 v4l_info(client, "Configured audio standard: %s\n", p);
1071 if ((audio_config >> 4) < 0xF) {
1072 switch (audio_config & 0xF) {
1073 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
1074 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
1075 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
1076 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
1077 case 0x04: p = "STEREO"; break;
1078 case 0x05: p = "DUAL1 (AB)"; break;
1079 case 0x06: p = "DUAL2 (AC) (FM)"; break;
1080 case 0x07: p = "DUAL3 (BC) (FM)"; break;
1081 case 0x08: p = "DUAL4 (AC) (AM)"; break;
1082 case 0x09: p = "DUAL5 (BC) (AM)"; break;
1083 case 0x0a: p = "SAP"; break;
1084 default: p = "undefined";
1086 v4l_info(client, "Configured audio mode: %s\n", p);
1088 switch (audio_config & 0xF) {
1089 case 0x00: p = "BG"; break;
1090 case 0x01: p = "DK1"; break;
1091 case 0x02: p = "DK2"; break;
1092 case 0x03: p = "DK3"; break;
1093 case 0x04: p = "I"; break;
1094 case 0x05: p = "L"; break;
1095 case 0x06: p = "BTSC"; break;
1096 case 0x07: p = "EIAJ"; break;
1097 case 0x08: p = "A2-M"; break;
1098 case 0x09: p = "FM Radio"; break;
1099 case 0x0f: p = "automatic standard and mode detection"; break;
1100 default: p = "undefined";
1102 v4l_info(client, "Configured audio system: %s\n", p);
1105 v4l_info(client, "Specified standard: %s\n",
1106 vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
1108 if (vid_input >= CX25840_COMPOSITE1 &&
1109 vid_input <= CX25840_COMPOSITE8) {
1110 v4l_info(client, "Specified video input: Composite %d\n",
1111 vid_input - CX25840_COMPOSITE1 + 1);
1113 v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
1114 (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
1117 v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input);
1119 v4l_info(client, "Specified audio input: External\n");
1122 v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
1124 switch (pref_mode & 0xf) {
1125 case 0: p = "mono/language A"; break;
1126 case 1: p = "language B"; break;
1127 case 2: p = "language C"; break;
1128 case 3: p = "analog fallback"; break;
1129 case 4: p = "stereo"; break;
1130 case 5: p = "language AC"; break;
1131 case 6: p = "language BC"; break;
1132 case 7: p = "language AB"; break;
1133 default: p = "undefined";
1135 v4l_info(client, "Preferred audio mode: %s\n", p);
1137 if ((audio_config & 0xf) == 0xf) {
1138 switch ((afc0 >> 3) & 0x3) {
1139 case 0: p = "system DK"; break;
1140 case 1: p = "system L"; break;
1141 case 2: p = "autodetect"; break;
1142 default: p = "undefined";
1144 v4l_info(client, "Selected 65 MHz format: %s\n", p);
1146 switch (afc0 & 0x7) {
1147 case 0: p = "chroma"; break;
1148 case 1: p = "BTSC"; break;
1149 case 2: p = "EIAJ"; break;
1150 case 3: p = "A2-M"; break;
1151 case 4: p = "autodetect"; break;
1152 default: p = "undefined";
1154 v4l_info(client, "Selected 45 MHz format: %s\n", p);