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/audiochip.h>
35 #include <media/v4l2-common.h>
39 MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
40 MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford");
41 MODULE_LICENSE("GPL");
43 static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
46 int cx25840_debug = 0;
48 module_param(cx25840_debug, bool, 0644);
50 MODULE_PARM_DESC(cx25840_debug, "Debugging messages [0=Off (default) 1=On]");
54 /* ----------------------------------------------------------------------- */
56 int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
59 buffer[0] = addr >> 8;
60 buffer[1] = addr & 0xff;
62 return i2c_master_send(client, buffer, 3);
65 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
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);
77 u8 cx25840_read(struct i2c_client * client, u16 addr)
80 buffer[0] = addr >> 8;
81 buffer[1] = addr & 0xff;
83 if (i2c_master_send(client, buffer, 2) < 2)
86 if (i2c_master_recv(client, buffer, 1) < 1)
92 u32 cx25840_read4(struct i2c_client * client, u16 addr)
95 buffer[0] = addr >> 8;
96 buffer[1] = addr & 0xff;
98 if (i2c_master_send(client, buffer, 2) < 2)
101 if (i2c_master_recv(client, buffer, 4) < 4)
104 return (buffer[0] << 24) | (buffer[1] << 16) |
105 (buffer[2] << 8) | buffer[3];
108 int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
111 return cx25840_write(client, addr,
112 (cx25840_read(client, addr) & and_mask) |
116 /* ----------------------------------------------------------------------- */
118 static int set_input(struct i2c_client *, enum cx25840_input);
119 static void input_change(struct i2c_client *);
120 static void log_status(struct i2c_client *client);
122 /* ----------------------------------------------------------------------- */
124 static inline void init_dll1(struct i2c_client *client)
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);
138 static inline void init_dll2(struct i2c_client *client)
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);
150 static void cx25840_initialize(struct i2c_client *client, int loadfw)
152 struct cx25840_state *state = i2c_get_clientdata(client);
154 /* datasheet startup in numbered steps, refer to page 3-77 */
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);
163 cx25840_write(client, 0x136, 0x0a);
165 cx25840_write(client, 0x13c, 0x01);
166 cx25840_write(client, 0x13c, 0x00);
169 cx25840_loadfw(client);
171 cx25840_write(client, 0x115, 0x8c);
172 cx25840_write(client, 0x116, 0x07);
173 cx25840_write(client, 0x118, 0x02);
175 cx25840_write(client, 0x4a5, 0x80);
176 cx25840_write(client, 0x4a5, 0x00);
177 cx25840_write(client, 0x402, 0x00);
179 cx25840_write(client, 0x401, 0x18);
180 cx25840_write(client, 0x4a2, 0x10);
181 cx25840_write(client, 0x402, 0x04);
183 cx25840_write(client, 0x8d3, 0x1f);
184 cx25840_write(client, 0x8e3, 0x03);
186 cx25840_vbi_setup(client);
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);
193 /* stereo prefered */
194 cx25840_write(client, 0x809, 0x04);
196 cx25840_write(client, 0x8cf, 0x0f);
198 /* (re)set video input */
199 set_input(client, state->input);
200 /* (re)set audio input */
201 cx25840_audio(client, AUDC_SET_INPUT, &state->audio_input);
203 /* start microcontroller */
204 cx25840_and_or(client, 0x803, ~0x10, 0x10);
207 /* ----------------------------------------------------------------------- */
209 static void input_change(struct i2c_client *client)
211 struct cx25840_state *state = i2c_get_clientdata(client);
212 v4l2_std_id std = cx25840_get_v4lstd(client);
214 /* Note: perhaps V4L2_STD_PAL_M should be handled as V4L2_STD_NTSC
215 instead of V4L2_STD_PAL. Someone needs to test this. */
216 if (std & V4L2_STD_PAL) {
217 /* Follow tuner change procedure for PAL */
218 cx25840_write(client, 0x808, 0xff);
219 cx25840_write(client, 0x80b, 0x10);
220 } else if (std & V4L2_STD_SECAM) {
221 /* Select autodetect for SECAM */
222 cx25840_write(client, 0x808, 0xff);
223 cx25840_write(client, 0x80b, 0x10);
224 } else if (std & V4L2_STD_NTSC) {
226 if (state->cardtype == CARDTYPE_PVR150_WORKAROUND) {
227 /* Certain Hauppauge PVR150 models have a hardware bug
228 that causes audio to drop out. For these models the
229 audio standard must be set explicitly.
230 To be precise: it affects cards with tuner models
231 85, 99 and 112 (model numbers from tveeprom). */
232 if (std == V4L2_STD_NTSC_M_JP) {
233 /* Japan uses EIAJ audio standard */
234 cx25840_write(client, 0x808, 0x2f);
236 /* Others use the BTSC audio standard */
237 cx25840_write(client, 0x808, 0x1f);
239 /* South Korea uses the A2-M (aka Zweiton M) audio
240 standard, and should set 0x808 to 0x3f, but I don't
241 know how to detect this. */
242 } else if (std == V4L2_STD_NTSC_M_JP) {
243 /* Japan uses EIAJ audio standard */
244 cx25840_write(client, 0x808, 0xf7);
246 /* Others use the BTSC audio standard */
247 cx25840_write(client, 0x808, 0xf6);
249 /* South Korea uses the A2-M (aka Zweiton M) audio standard,
250 and should set 0x808 to 0xf8, but I don't know how to
252 cx25840_write(client, 0x80b, 0x00);
255 if (cx25840_read(client, 0x803) & 0x10) {
256 /* restart audio decoder microcontroller */
257 cx25840_and_or(client, 0x803, ~0x10, 0x00);
258 cx25840_and_or(client, 0x803, ~0x10, 0x10);
262 static int set_input(struct i2c_client *client, enum cx25840_input input)
264 struct cx25840_state *state = i2c_get_clientdata(client);
266 cx25840_dbg("decoder set input (%d)\n", input);
270 cx25840_dbg("now setting Tuner input\n");
272 if (state->cardtype == CARDTYPE_PVR150 ||
273 state->cardtype == CARDTYPE_PVR150_WORKAROUND) {
275 cx25840_and_or(client, 0x102, ~0x2, 0x02);
278 /* Video Input Control */
279 if (state->cardtype == CARDTYPE_PG600) {
280 cx25840_write(client, 0x103, 0x11);
282 cx25840_write(client, 0x103, 0x46);
286 cx25840_and_or(client, 0x401, ~0x6, 0x00);
289 case CX25840_COMPOSITE0:
290 case CX25840_COMPOSITE1:
291 cx25840_dbg("now setting Composite input\n");
293 /* Video Input Control */
294 if (state->cardtype == CARDTYPE_PG600) {
295 cx25840_write(client, 0x103, 0x00);
297 cx25840_write(client, 0x103, 0x02);
301 cx25840_and_or(client, 0x401, ~0x6, 0x00);
304 case CX25840_SVIDEO0:
305 case CX25840_SVIDEO1:
306 cx25840_dbg("now setting S-Video input\n");
309 cx25840_and_or(client, 0x102, ~0x2, 0x00);
311 /* Video Input Control */
312 if (state->cardtype == CARDTYPE_PG600) {
313 cx25840_write(client, 0x103, 0x02);
315 cx25840_write(client, 0x103, 0x10);
319 cx25840_and_or(client, 0x401, ~0x6, 0x02);
323 cx25840_err("%d is not a valid input!\n", input);
327 state->input = input;
328 input_change(client);
332 /* ----------------------------------------------------------------------- */
334 static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
339 /* zero is autodetect */
340 case 0: fmt = 0x0; break;
341 /* default ntsc to ntsc-m */
343 case V4L2_STD_NTSC_M: fmt = 0x1; break;
344 case V4L2_STD_NTSC_M_JP: fmt = 0x2; break;
345 case V4L2_STD_NTSC_443: fmt = 0x3; break;
346 case V4L2_STD_PAL: fmt = 0x4; break;
347 case V4L2_STD_PAL_M: fmt = 0x5; break;
348 case V4L2_STD_PAL_N: fmt = 0x6; break;
349 case V4L2_STD_PAL_Nc: fmt = 0x7; break;
350 case V4L2_STD_PAL_60: fmt = 0x8; break;
351 case V4L2_STD_SECAM: fmt = 0xc; break;
356 cx25840_and_or(client, 0x400, ~0xf, fmt);
357 cx25840_vbi_setup(client);
361 v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
363 /* check VID_FMT_SEL first */
364 u8 fmt = cx25840_read(client, 0x400) & 0xf;
367 /* check AFD_FMT_STAT if set to autodetect */
368 fmt = cx25840_read(client, 0x40d) & 0xf;
372 case 0x1: return V4L2_STD_NTSC_M;
373 case 0x2: return V4L2_STD_NTSC_M_JP;
374 case 0x3: return V4L2_STD_NTSC_443;
375 case 0x4: return V4L2_STD_PAL;
376 case 0x5: return V4L2_STD_PAL_M;
377 case 0x6: return V4L2_STD_PAL_N;
378 case 0x7: return V4L2_STD_PAL_Nc;
379 case 0x8: return V4L2_STD_PAL_60;
380 case 0xc: return V4L2_STD_SECAM;
381 default: return V4L2_STD_UNKNOWN;
385 /* ----------------------------------------------------------------------- */
387 static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
389 struct cx25840_state *state = i2c_get_clientdata(client);
392 case CX25840_CID_CARDTYPE:
393 switch (ctrl->value) {
394 case CARDTYPE_PVR150:
395 case CARDTYPE_PVR150_WORKAROUND:
397 state->cardtype = ctrl->value;
403 set_input(client, state->input);
406 case V4L2_CID_BRIGHTNESS:
407 if (ctrl->value < 0 || ctrl->value > 255) {
408 cx25840_err("invalid brightness setting %d\n",
413 cx25840_write(client, 0x414, ctrl->value - 128);
416 case V4L2_CID_CONTRAST:
417 if (ctrl->value < 0 || ctrl->value > 127) {
418 cx25840_err("invalid contrast setting %d\n",
423 cx25840_write(client, 0x415, ctrl->value << 1);
426 case V4L2_CID_SATURATION:
427 if (ctrl->value < 0 || ctrl->value > 127) {
428 cx25840_err("invalid saturation setting %d\n",
433 cx25840_write(client, 0x420, ctrl->value << 1);
434 cx25840_write(client, 0x421, ctrl->value << 1);
438 if (ctrl->value < -127 || ctrl->value > 127) {
439 cx25840_err("invalid hue setting %d\n", ctrl->value);
443 cx25840_write(client, 0x422, ctrl->value);
446 case V4L2_CID_AUDIO_VOLUME:
447 case V4L2_CID_AUDIO_BASS:
448 case V4L2_CID_AUDIO_TREBLE:
449 case V4L2_CID_AUDIO_BALANCE:
450 case V4L2_CID_AUDIO_MUTE:
451 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
457 static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
459 struct cx25840_state *state = i2c_get_clientdata(client);
462 case CX25840_CID_CARDTYPE:
463 ctrl->value = state->cardtype;
465 case V4L2_CID_BRIGHTNESS:
466 ctrl->value = cx25840_read(client, 0x414) + 128;
468 case V4L2_CID_CONTRAST:
469 ctrl->value = cx25840_read(client, 0x415) >> 1;
471 case V4L2_CID_SATURATION:
472 ctrl->value = cx25840_read(client, 0x420) >> 1;
475 ctrl->value = cx25840_read(client, 0x422);
477 case V4L2_CID_AUDIO_VOLUME:
478 case V4L2_CID_AUDIO_BASS:
479 case V4L2_CID_AUDIO_TREBLE:
480 case V4L2_CID_AUDIO_BALANCE:
481 case V4L2_CID_AUDIO_MUTE:
482 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
490 /* ----------------------------------------------------------------------- */
492 static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
495 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
496 return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
504 static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
506 struct v4l2_pix_format *pix;
507 int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
508 int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_NTSC);
511 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
512 pix = &(fmt->fmt.pix);
514 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
515 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
517 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
518 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
520 Vlines = pix->height + (is_pal ? 4 : 7);
522 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
523 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
524 cx25840_err("%dx%d is not a valid size!\n",
525 pix->width, pix->height);
529 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
530 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
533 if (pix->width >= 385)
535 else if (pix->width > 192)
537 else if (pix->width > 96)
542 cx25840_dbg("decoder set size %dx%d -> scale %ux%u\n",
543 pix->width, pix->height, HSC, VSC);
546 cx25840_write(client, 0x418, HSC & 0xff);
547 cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
548 cx25840_write(client, 0x41a, HSC >> 16);
550 cx25840_write(client, 0x41c, VSC & 0xff);
551 cx25840_write(client, 0x41d, VSC >> 8);
552 /* VS_INTRLACE=1 VFILT=filter */
553 cx25840_write(client, 0x41e, 0x8 | filter);
556 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
557 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
559 case V4L2_BUF_TYPE_VBI_CAPTURE:
560 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
569 /* ----------------------------------------------------------------------- */
571 static int cx25840_command(struct i2c_client *client, unsigned int cmd,
574 struct cx25840_state *state = i2c_get_clientdata(client);
575 struct v4l2_tuner *vt = arg;
582 #ifdef CONFIG_VIDEO_ADV_DEBUG
583 /* ioctls to allow direct access to the
584 * cx25840 registers for testing */
585 case VIDIOC_INT_G_REGISTER:
587 struct v4l2_register *reg = arg;
589 if (reg->i2c_id != I2C_DRIVERID_CX25840)
591 reg->val = cx25840_read(client, reg->reg & 0x0fff);
595 case VIDIOC_INT_S_REGISTER:
597 struct v4l2_register *reg = arg;
599 if (reg->i2c_id != I2C_DRIVERID_CX25840)
601 if (!capable(CAP_SYS_ADMIN))
603 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
608 case VIDIOC_INT_DECODE_VBI_LINE:
609 return cx25840_vbi(client, cmd, arg);
611 case VIDIOC_INT_AUDIO_CLOCK_FREQ:
613 result = cx25840_audio(client, cmd, arg);
616 case VIDIOC_STREAMON:
617 cx25840_dbg("enable output\n");
618 cx25840_write(client, 0x115, 0x8c);
619 cx25840_write(client, 0x116, 0x07);
622 case VIDIOC_STREAMOFF:
623 cx25840_dbg("disable output\n");
624 cx25840_write(client, 0x115, 0x00);
625 cx25840_write(client, 0x116, 0x00);
628 case VIDIOC_LOG_STATUS:
633 result = get_v4lctrl(client, (struct v4l2_control *)arg);
637 result = set_v4lctrl(client, (struct v4l2_control *)arg);
641 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
645 result = set_v4lstd(client, *(v4l2_std_id *)arg);
649 *(int *)arg = state->input;
653 result = set_input(client, *(int *)arg);
656 case VIDIOC_S_FREQUENCY:
657 input_change(client);
662 u8 mode = cx25840_read(client, 0x804);
663 u8 pref = cx25840_read(client, 0x809) & 0xf;
664 u8 vpres = cx25840_read(client, 0x80a) & 0x10;
668 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
669 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
671 vt->signal = vpres ? 0xffff : 0x0;
673 /* get rxsubchans and audmode */
674 if ((mode & 0xf) == 1)
675 val |= V4L2_TUNER_SUB_STEREO;
677 val |= V4L2_TUNER_SUB_MONO;
679 if (mode == 2 || mode == 4)
680 val |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
683 val |= V4L2_TUNER_SUB_SAP;
685 vt->rxsubchans = val;
689 vt->audmode = V4L2_TUNER_MODE_MONO;
693 vt->audmode = V4L2_TUNER_MODE_LANG2;
697 vt->audmode = V4L2_TUNER_MODE_STEREO;
703 switch (vt->audmode) {
704 case V4L2_TUNER_MODE_MONO:
705 case V4L2_TUNER_MODE_LANG1:
706 /* Force PREF_MODE to MONO */
707 cx25840_and_or(client, 0x809, ~0xf, 0x00);
709 case V4L2_TUNER_MODE_STEREO:
710 /* Force PREF_MODE to STEREO */
711 cx25840_and_or(client, 0x809, ~0xf, 0x04);
713 case V4L2_TUNER_MODE_LANG2:
714 /* Force PREF_MODE to LANG2 */
715 cx25840_and_or(client, 0x809, ~0xf, 0x01);
721 result = get_v4lfmt(client, (struct v4l2_format *)arg);
725 result = set_v4lfmt(client, (struct v4l2_format *)arg);
728 case VIDIOC_INT_RESET:
729 cx25840_initialize(client, 0);
732 case VIDIOC_INT_G_CHIP_IDENT:
733 *(enum v4l2_chip_ident *)arg =
734 V4L2_IDENT_CX25840 + ((cx25840_read(client, 0x100) >> 4) & 0xf);
738 cx25840_err("invalid ioctl %x\n", cmd);
745 /* ----------------------------------------------------------------------- */
747 static struct i2c_driver i2c_driver_cx25840;
749 static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
752 struct i2c_client *client;
753 struct cx25840_state *state;
756 /* Check if the adapter supports the needed features
757 * Not until kernel version 2.6.11 did the bit-algo
758 * correctly report that it would do an I2C-level xfer */
759 if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
762 client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
766 memset(client, 0, sizeof(struct i2c_client));
767 client->addr = address;
768 client->adapter = adapter;
769 client->driver = &i2c_driver_cx25840;
770 client->flags = I2C_CLIENT_ALLOW_USE;
771 snprintf(client->name, sizeof(client->name) - 1, "cx25840");
773 cx25840_dbg("detecting cx25840 client on address 0x%x\n", address << 1);
775 device_id = cx25840_read(client, 0x101) << 8;
776 device_id |= cx25840_read(client, 0x100);
778 /* The high byte of the device ID should be
779 * 0x84 if chip is present */
780 if ((device_id & 0xff00) != 0x8400) {
781 cx25840_dbg("cx25840 not found\n");
786 cx25840_info("cx25%3x-2%x found @ 0x%x (%s)\n",
787 (device_id & 0xfff0) >> 4,
788 (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : 3,
789 address << 1, adapter->name);
791 state = kmalloc(sizeof(struct cx25840_state), GFP_KERNEL);
797 i2c_set_clientdata(client, state);
798 memset(state, 0, sizeof(struct cx25840_state));
799 state->input = CX25840_TUNER;
800 state->audclk_freq = V4L2_AUDCLK_48_KHZ;
801 state->audio_input = AUDIO_TUNER;
802 state->cardtype = CARDTYPE_PVR150;
804 cx25840_initialize(client, 1);
806 i2c_attach_client(client);
811 static int cx25840_attach_adapter(struct i2c_adapter *adapter)
813 #ifdef I2C_CLASS_TV_ANALOG
814 if (adapter->class & I2C_CLASS_TV_ANALOG)
816 if (adapter->id == I2C_HW_B_BT848)
818 return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
822 static int cx25840_detach_client(struct i2c_client *client)
824 struct cx25840_state *state = i2c_get_clientdata(client);
827 err = i2c_detach_client(client);
838 /* ----------------------------------------------------------------------- */
840 static struct i2c_driver i2c_driver_cx25840 = {
843 .id = I2C_DRIVERID_CX25840,
844 .flags = I2C_DF_NOTIFY,
846 .attach_adapter = cx25840_attach_adapter,
847 .detach_client = cx25840_detach_client,
848 .command = cx25840_command,
849 .owner = THIS_MODULE,
853 static int __init m__init(void)
855 return i2c_add_driver(&i2c_driver_cx25840);
858 static void __exit m__exit(void)
860 i2c_del_driver(&i2c_driver_cx25840);
863 module_init(m__init);
864 module_exit(m__exit);
866 /* ----------------------------------------------------------------------- */
868 static void log_status(struct i2c_client *client)
870 static const char *const fmt_strs[] = {
872 "NTSC-M", "NTSC-J", "NTSC-4.43",
873 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
879 struct cx25840_state *state = i2c_get_clientdata(client);
880 u8 microctrl_vidfmt = cx25840_read(client, 0x80a);
881 u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
882 u8 gen_stat1 = cx25840_read(client, 0x40d);
883 u8 download_ctl = cx25840_read(client, 0x803);
884 u8 mod_det_stat0 = cx25840_read(client, 0x804);
885 u8 mod_det_stat1 = cx25840_read(client, 0x805);
886 u8 audio_config = cx25840_read(client, 0x808);
887 u8 pref_mode = cx25840_read(client, 0x809);
888 u8 afc0 = cx25840_read(client, 0x80b);
889 u8 mute_ctl = cx25840_read(client, 0x8d3);
892 cx25840_info("Video signal: %spresent\n",
893 (microctrl_vidfmt & 0x10) ? "" : "not ");
894 cx25840_info("Detected format: %s\n",
895 fmt_strs[gen_stat1 & 0xf]);
897 switch (mod_det_stat0) {
898 case 0x00: p = "mono"; break;
899 case 0x01: p = "stereo"; break;
900 case 0x02: p = "dual"; break;
901 case 0x04: p = "tri"; break;
902 case 0x10: p = "mono with SAP"; break;
903 case 0x11: p = "stereo with SAP"; break;
904 case 0x12: p = "dual with SAP"; break;
905 case 0x14: p = "tri with SAP"; break;
906 case 0xfe: p = "forced mode"; break;
907 default: p = "not defined";
909 cx25840_info("Detected audio mode: %s\n", p);
911 switch (mod_det_stat1) {
912 case 0x00: p = "not defined"; break;
913 case 0x01: p = "EIAJ"; break;
914 case 0x02: p = "A2-M"; break;
915 case 0x03: p = "A2-BG"; break;
916 case 0x04: p = "A2-DK1"; break;
917 case 0x05: p = "A2-DK2"; break;
918 case 0x06: p = "A2-DK3"; break;
919 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
920 case 0x08: p = "AM-L"; break;
921 case 0x09: p = "NICAM-BG"; break;
922 case 0x0a: p = "NICAM-DK"; break;
923 case 0x0b: p = "NICAM-I"; break;
924 case 0x0c: p = "NICAM-L"; break;
925 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
926 case 0x0e: p = "IF FM Radio"; break;
927 case 0x0f: p = "BTSC"; break;
928 case 0x10: p = "high-deviation FM"; break;
929 case 0x11: p = "very high-deviation FM"; break;
930 case 0xfd: p = "unknown audio standard"; break;
931 case 0xfe: p = "forced audio standard"; break;
932 case 0xff: p = "no detected audio standard"; break;
933 default: p = "not defined";
935 cx25840_info("Detected audio standard: %s\n", p);
936 cx25840_info("Audio muted: %s\n",
937 (mute_ctl & 0x2) ? "yes" : "no");
938 cx25840_info("Audio microcontroller: %s\n",
939 (download_ctl & 0x10) ? "running" : "stopped");
941 switch (audio_config >> 4) {
942 case 0x00: p = "undefined"; break;
943 case 0x01: p = "BTSC"; break;
944 case 0x02: p = "EIAJ"; break;
945 case 0x03: p = "A2-M"; break;
946 case 0x04: p = "A2-BG"; break;
947 case 0x05: p = "A2-DK1"; break;
948 case 0x06: p = "A2-DK2"; break;
949 case 0x07: p = "A2-DK3"; break;
950 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
951 case 0x09: p = "AM-L"; break;
952 case 0x0a: p = "NICAM-BG"; break;
953 case 0x0b: p = "NICAM-DK"; break;
954 case 0x0c: p = "NICAM-I"; break;
955 case 0x0d: p = "NICAM-L"; break;
956 case 0x0e: p = "FM radio"; break;
957 case 0x0f: p = "automatic detection"; break;
958 default: p = "undefined";
960 cx25840_info("Configured audio standard: %s\n", p);
962 if ((audio_config >> 4) < 0xF) {
963 switch (audio_config & 0xF) {
964 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
965 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
966 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
967 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
968 case 0x04: p = "STEREO"; break;
969 case 0x05: p = "DUAL1 (AB)"; break;
970 case 0x06: p = "DUAL2 (AC) (FM)"; break;
971 case 0x07: p = "DUAL3 (BC) (FM)"; break;
972 case 0x08: p = "DUAL4 (AC) (AM)"; break;
973 case 0x09: p = "DUAL5 (BC) (AM)"; break;
974 case 0x0a: p = "SAP"; break;
975 default: p = "undefined";
977 cx25840_info("Configured audio mode: %s\n", p);
979 switch (audio_config & 0xF) {
980 case 0x00: p = "BG"; break;
981 case 0x01: p = "DK1"; break;
982 case 0x02: p = "DK2"; break;
983 case 0x03: p = "DK3"; break;
984 case 0x04: p = "I"; break;
985 case 0x05: p = "L"; break;
986 case 0x06: p = "BTSC"; break;
987 case 0x07: p = "EIAJ"; break;
988 case 0x08: p = "A2-M"; break;
989 case 0x09: p = "FM Radio"; break;
990 case 0x0f: p = "automatic standard and mode detection"; break;
991 default: p = "undefined";
993 cx25840_info("Configured audio system: %s\n", p);
996 cx25840_info("Specified standard: %s\n",
997 vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
999 switch (state->input) {
1000 case CX25840_COMPOSITE0: p = "Composite 0"; break;
1001 case CX25840_COMPOSITE1: p = "Composite 1"; break;
1002 case CX25840_SVIDEO0: p = "S-Video 0"; break;
1003 case CX25840_SVIDEO1: p = "S-Video 1"; break;
1004 case CX25840_TUNER: p = "Tuner"; break;
1006 cx25840_info("Specified input: %s\n", p);
1007 cx25840_info("Specified audio input: %s\n",
1008 state->audio_input == 0 ? "Tuner" : "External");
1010 switch (state->audclk_freq) {
1011 case V4L2_AUDCLK_441_KHZ: p = "44.1 kHz"; break;
1012 case V4L2_AUDCLK_48_KHZ: p = "48 kHz"; break;
1013 case V4L2_AUDCLK_32_KHZ: p = "32 kHz"; break;
1014 default: p = "undefined";
1016 cx25840_info("Specified audioclock freq: %s\n", p);
1018 switch (pref_mode & 0xf) {
1019 case 0: p = "mono/language A"; break;
1020 case 1: p = "language B"; break;
1021 case 2: p = "language C"; break;
1022 case 3: p = "analog fallback"; break;
1023 case 4: p = "stereo"; break;
1024 case 5: p = "language AC"; break;
1025 case 6: p = "language BC"; break;
1026 case 7: p = "language AB"; break;
1027 default: p = "undefined";
1029 cx25840_info("Preferred audio mode: %s\n", p);
1031 if ((audio_config & 0xf) == 0xf) {
1032 switch ((afc0 >> 3) & 0x3) {
1033 case 0: p = "system DK"; break;
1034 case 1: p = "system L"; break;
1035 case 2: p = "autodetect"; break;
1036 default: p = "undefined";
1038 cx25840_info("Selected 65 MHz format: %s\n", p);
1040 switch (afc0 & 0x7) {
1041 case 0: p = "chroma"; break;
1042 case 1: p = "BTSC"; break;
1043 case 2: p = "EIAJ"; break;
1044 case 3: p = "A2-M"; break;
1045 case 4: p = "autodetect"; break;
1046 default: p = "undefined";
1048 cx25840_info("Selected 45 MHz format: %s\n", p);