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)
336 u8 fmt=0; /* zero is autodetect */
338 /* First tests should be against specific std */
339 if (std & V4L2_STD_NTSC_M_JP) {
341 } else if (std & V4L2_STD_NTSC_443) {
343 } else if (std & V4L2_STD_PAL_M) {
345 } else if (std & V4L2_STD_PAL_N) {
347 } else if (std & V4L2_STD_PAL_Nc) {
349 } else if (std & V4L2_STD_PAL_60) {
352 /* Then, test against generic ones */
353 if (std & V4L2_STD_NTSC) {
355 } else if (std & V4L2_STD_PAL) {
357 } else if (std & V4L2_STD_SECAM) {
362 cx25840_and_or(client, 0x400, ~0xf, fmt);
363 cx25840_vbi_setup(client);
367 v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
369 /* check VID_FMT_SEL first */
370 u8 fmt = cx25840_read(client, 0x400) & 0xf;
373 /* check AFD_FMT_STAT if set to autodetect */
374 fmt = cx25840_read(client, 0x40d) & 0xf;
378 case 0x1: return V4L2_STD_NTSC_M;
379 case 0x2: return V4L2_STD_NTSC_M_JP;
380 case 0x3: return V4L2_STD_NTSC_443;
381 case 0x4: return V4L2_STD_PAL;
382 case 0x5: return V4L2_STD_PAL_M;
383 case 0x6: return V4L2_STD_PAL_N;
384 case 0x7: return V4L2_STD_PAL_Nc;
385 case 0x8: return V4L2_STD_PAL_60;
386 case 0xc: return V4L2_STD_SECAM;
387 default: return V4L2_STD_UNKNOWN;
391 /* ----------------------------------------------------------------------- */
393 static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
395 struct cx25840_state *state = i2c_get_clientdata(client);
398 case CX25840_CID_CARDTYPE:
399 switch (ctrl->value) {
400 case CARDTYPE_PVR150:
401 case CARDTYPE_PVR150_WORKAROUND:
403 state->cardtype = ctrl->value;
409 set_input(client, state->input);
412 case V4L2_CID_BRIGHTNESS:
413 if (ctrl->value < 0 || ctrl->value > 255) {
414 cx25840_err("invalid brightness setting %d\n",
419 cx25840_write(client, 0x414, ctrl->value - 128);
422 case V4L2_CID_CONTRAST:
423 if (ctrl->value < 0 || ctrl->value > 127) {
424 cx25840_err("invalid contrast setting %d\n",
429 cx25840_write(client, 0x415, ctrl->value << 1);
432 case V4L2_CID_SATURATION:
433 if (ctrl->value < 0 || ctrl->value > 127) {
434 cx25840_err("invalid saturation setting %d\n",
439 cx25840_write(client, 0x420, ctrl->value << 1);
440 cx25840_write(client, 0x421, ctrl->value << 1);
444 if (ctrl->value < -127 || ctrl->value > 127) {
445 cx25840_err("invalid hue setting %d\n", ctrl->value);
449 cx25840_write(client, 0x422, ctrl->value);
452 case V4L2_CID_AUDIO_VOLUME:
453 case V4L2_CID_AUDIO_BASS:
454 case V4L2_CID_AUDIO_TREBLE:
455 case V4L2_CID_AUDIO_BALANCE:
456 case V4L2_CID_AUDIO_MUTE:
457 return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
463 static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
465 struct cx25840_state *state = i2c_get_clientdata(client);
468 case CX25840_CID_CARDTYPE:
469 ctrl->value = state->cardtype;
471 case V4L2_CID_BRIGHTNESS:
472 ctrl->value = cx25840_read(client, 0x414) + 128;
474 case V4L2_CID_CONTRAST:
475 ctrl->value = cx25840_read(client, 0x415) >> 1;
477 case V4L2_CID_SATURATION:
478 ctrl->value = cx25840_read(client, 0x420) >> 1;
481 ctrl->value = cx25840_read(client, 0x422);
483 case V4L2_CID_AUDIO_VOLUME:
484 case V4L2_CID_AUDIO_BASS:
485 case V4L2_CID_AUDIO_TREBLE:
486 case V4L2_CID_AUDIO_BALANCE:
487 case V4L2_CID_AUDIO_MUTE:
488 return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
496 /* ----------------------------------------------------------------------- */
498 static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
501 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
502 return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
510 static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
512 struct v4l2_pix_format *pix;
513 int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
514 int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_NTSC);
517 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
518 pix = &(fmt->fmt.pix);
520 Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
521 Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
523 Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
524 Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
526 Vlines = pix->height + (is_pal ? 4 : 7);
528 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
529 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
530 cx25840_err("%dx%d is not a valid size!\n",
531 pix->width, pix->height);
535 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
536 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
539 if (pix->width >= 385)
541 else if (pix->width > 192)
543 else if (pix->width > 96)
548 cx25840_dbg("decoder set size %dx%d -> scale %ux%u\n",
549 pix->width, pix->height, HSC, VSC);
552 cx25840_write(client, 0x418, HSC & 0xff);
553 cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
554 cx25840_write(client, 0x41a, HSC >> 16);
556 cx25840_write(client, 0x41c, VSC & 0xff);
557 cx25840_write(client, 0x41d, VSC >> 8);
558 /* VS_INTRLACE=1 VFILT=filter */
559 cx25840_write(client, 0x41e, 0x8 | filter);
562 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
563 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
565 case V4L2_BUF_TYPE_VBI_CAPTURE:
566 return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
575 /* ----------------------------------------------------------------------- */
577 static int cx25840_command(struct i2c_client *client, unsigned int cmd,
580 struct cx25840_state *state = i2c_get_clientdata(client);
581 struct v4l2_tuner *vt = arg;
588 #ifdef CONFIG_VIDEO_ADV_DEBUG
589 /* ioctls to allow direct access to the
590 * cx25840 registers for testing */
591 case VIDIOC_INT_G_REGISTER:
593 struct v4l2_register *reg = arg;
595 if (reg->i2c_id != I2C_DRIVERID_CX25840)
597 reg->val = cx25840_read(client, reg->reg & 0x0fff);
601 case VIDIOC_INT_S_REGISTER:
603 struct v4l2_register *reg = arg;
605 if (reg->i2c_id != I2C_DRIVERID_CX25840)
607 if (!capable(CAP_SYS_ADMIN))
609 cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
614 case VIDIOC_INT_DECODE_VBI_LINE:
615 return cx25840_vbi(client, cmd, arg);
617 case VIDIOC_INT_AUDIO_CLOCK_FREQ:
619 result = cx25840_audio(client, cmd, arg);
622 case VIDIOC_STREAMON:
623 cx25840_dbg("enable output\n");
624 cx25840_write(client, 0x115, 0x8c);
625 cx25840_write(client, 0x116, 0x07);
628 case VIDIOC_STREAMOFF:
629 cx25840_dbg("disable output\n");
630 cx25840_write(client, 0x115, 0x00);
631 cx25840_write(client, 0x116, 0x00);
634 case VIDIOC_LOG_STATUS:
639 result = get_v4lctrl(client, (struct v4l2_control *)arg);
643 result = set_v4lctrl(client, (struct v4l2_control *)arg);
647 *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
651 result = set_v4lstd(client, *(v4l2_std_id *)arg);
655 *(int *)arg = state->input;
659 result = set_input(client, *(int *)arg);
662 case VIDIOC_S_FREQUENCY:
663 input_change(client);
668 u8 mode = cx25840_read(client, 0x804);
669 u8 pref = cx25840_read(client, 0x809) & 0xf;
670 u8 vpres = cx25840_read(client, 0x80a) & 0x10;
674 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
675 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
677 vt->signal = vpres ? 0xffff : 0x0;
679 /* get rxsubchans and audmode */
680 if ((mode & 0xf) == 1)
681 val |= V4L2_TUNER_SUB_STEREO;
683 val |= V4L2_TUNER_SUB_MONO;
685 if (mode == 2 || mode == 4)
686 val |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
689 val |= V4L2_TUNER_SUB_SAP;
691 vt->rxsubchans = val;
695 vt->audmode = V4L2_TUNER_MODE_MONO;
699 vt->audmode = V4L2_TUNER_MODE_LANG2;
703 vt->audmode = V4L2_TUNER_MODE_STEREO;
709 switch (vt->audmode) {
710 case V4L2_TUNER_MODE_MONO:
711 case V4L2_TUNER_MODE_LANG1:
712 /* Force PREF_MODE to MONO */
713 cx25840_and_or(client, 0x809, ~0xf, 0x00);
715 case V4L2_TUNER_MODE_STEREO:
716 /* Force PREF_MODE to STEREO */
717 cx25840_and_or(client, 0x809, ~0xf, 0x04);
719 case V4L2_TUNER_MODE_LANG2:
720 /* Force PREF_MODE to LANG2 */
721 cx25840_and_or(client, 0x809, ~0xf, 0x01);
727 result = get_v4lfmt(client, (struct v4l2_format *)arg);
731 result = set_v4lfmt(client, (struct v4l2_format *)arg);
734 case VIDIOC_INT_RESET:
735 cx25840_initialize(client, 0);
738 case VIDIOC_INT_G_CHIP_IDENT:
739 *(enum v4l2_chip_ident *)arg =
740 V4L2_IDENT_CX25840 + ((cx25840_read(client, 0x100) >> 4) & 0xf);
744 cx25840_err("invalid ioctl %x\n", cmd);
751 /* ----------------------------------------------------------------------- */
753 static struct i2c_driver i2c_driver_cx25840;
755 static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
758 struct i2c_client *client;
759 struct cx25840_state *state;
762 /* Check if the adapter supports the needed features
763 * Not until kernel version 2.6.11 did the bit-algo
764 * correctly report that it would do an I2C-level xfer */
765 if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
768 client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
772 memset(client, 0, sizeof(struct i2c_client));
773 client->addr = address;
774 client->adapter = adapter;
775 client->driver = &i2c_driver_cx25840;
776 snprintf(client->name, sizeof(client->name) - 1, "cx25840");
778 cx25840_dbg("detecting cx25840 client on address 0x%x\n", address << 1);
780 device_id = cx25840_read(client, 0x101) << 8;
781 device_id |= cx25840_read(client, 0x100);
783 /* The high byte of the device ID should be
784 * 0x84 if chip is present */
785 if ((device_id & 0xff00) != 0x8400) {
786 cx25840_dbg("cx25840 not found\n");
791 cx25840_info("cx25%3x-2%x found @ 0x%x (%s)\n",
792 (device_id & 0xfff0) >> 4,
793 (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : 3,
794 address << 1, adapter->name);
796 state = kmalloc(sizeof(struct cx25840_state), GFP_KERNEL);
802 i2c_set_clientdata(client, state);
803 memset(state, 0, sizeof(struct cx25840_state));
804 state->input = CX25840_TUNER;
805 state->audclk_freq = 48000;
806 state->audio_input = AUDIO_TUNER;
807 state->cardtype = CARDTYPE_PVR150;
809 cx25840_initialize(client, 1);
811 i2c_attach_client(client);
816 static int cx25840_attach_adapter(struct i2c_adapter *adapter)
818 if (adapter->class & I2C_CLASS_TV_ANALOG)
819 return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
823 static int cx25840_detach_client(struct i2c_client *client)
825 struct cx25840_state *state = i2c_get_clientdata(client);
828 err = i2c_detach_client(client);
839 /* ----------------------------------------------------------------------- */
841 static struct i2c_driver i2c_driver_cx25840 = {
846 .id = I2C_DRIVERID_CX25840,
848 .attach_adapter = cx25840_attach_adapter,
849 .detach_client = cx25840_detach_client,
850 .command = cx25840_command,
854 static int __init m__init(void)
856 return i2c_add_driver(&i2c_driver_cx25840);
859 static void __exit m__exit(void)
861 i2c_del_driver(&i2c_driver_cx25840);
864 module_init(m__init);
865 module_exit(m__exit);
867 /* ----------------------------------------------------------------------- */
869 static void log_status(struct i2c_client *client)
871 static const char *const fmt_strs[] = {
873 "NTSC-M", "NTSC-J", "NTSC-4.43",
874 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
880 struct cx25840_state *state = i2c_get_clientdata(client);
881 u8 microctrl_vidfmt = cx25840_read(client, 0x80a);
882 u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
883 u8 gen_stat1 = cx25840_read(client, 0x40d);
884 u8 download_ctl = cx25840_read(client, 0x803);
885 u8 mod_det_stat0 = cx25840_read(client, 0x804);
886 u8 mod_det_stat1 = cx25840_read(client, 0x805);
887 u8 audio_config = cx25840_read(client, 0x808);
888 u8 pref_mode = cx25840_read(client, 0x809);
889 u8 afc0 = cx25840_read(client, 0x80b);
890 u8 mute_ctl = cx25840_read(client, 0x8d3);
893 cx25840_info("Video signal: %spresent\n",
894 (microctrl_vidfmt & 0x10) ? "" : "not ");
895 cx25840_info("Detected format: %s\n",
896 fmt_strs[gen_stat1 & 0xf]);
898 switch (mod_det_stat0) {
899 case 0x00: p = "mono"; break;
900 case 0x01: p = "stereo"; break;
901 case 0x02: p = "dual"; break;
902 case 0x04: p = "tri"; break;
903 case 0x10: p = "mono with SAP"; break;
904 case 0x11: p = "stereo with SAP"; break;
905 case 0x12: p = "dual with SAP"; break;
906 case 0x14: p = "tri with SAP"; break;
907 case 0xfe: p = "forced mode"; break;
908 default: p = "not defined";
910 cx25840_info("Detected audio mode: %s\n", p);
912 switch (mod_det_stat1) {
913 case 0x00: p = "not defined"; break;
914 case 0x01: p = "EIAJ"; break;
915 case 0x02: p = "A2-M"; break;
916 case 0x03: p = "A2-BG"; break;
917 case 0x04: p = "A2-DK1"; break;
918 case 0x05: p = "A2-DK2"; break;
919 case 0x06: p = "A2-DK3"; break;
920 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
921 case 0x08: p = "AM-L"; break;
922 case 0x09: p = "NICAM-BG"; break;
923 case 0x0a: p = "NICAM-DK"; break;
924 case 0x0b: p = "NICAM-I"; break;
925 case 0x0c: p = "NICAM-L"; break;
926 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
927 case 0x0e: p = "IF FM Radio"; break;
928 case 0x0f: p = "BTSC"; break;
929 case 0x10: p = "high-deviation FM"; break;
930 case 0x11: p = "very high-deviation FM"; break;
931 case 0xfd: p = "unknown audio standard"; break;
932 case 0xfe: p = "forced audio standard"; break;
933 case 0xff: p = "no detected audio standard"; break;
934 default: p = "not defined";
936 cx25840_info("Detected audio standard: %s\n", p);
937 cx25840_info("Audio muted: %s\n",
938 (mute_ctl & 0x2) ? "yes" : "no");
939 cx25840_info("Audio microcontroller: %s\n",
940 (download_ctl & 0x10) ? "running" : "stopped");
942 switch (audio_config >> 4) {
943 case 0x00: p = "undefined"; break;
944 case 0x01: p = "BTSC"; break;
945 case 0x02: p = "EIAJ"; break;
946 case 0x03: p = "A2-M"; break;
947 case 0x04: p = "A2-BG"; break;
948 case 0x05: p = "A2-DK1"; break;
949 case 0x06: p = "A2-DK2"; break;
950 case 0x07: p = "A2-DK3"; break;
951 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
952 case 0x09: p = "AM-L"; break;
953 case 0x0a: p = "NICAM-BG"; break;
954 case 0x0b: p = "NICAM-DK"; break;
955 case 0x0c: p = "NICAM-I"; break;
956 case 0x0d: p = "NICAM-L"; break;
957 case 0x0e: p = "FM radio"; break;
958 case 0x0f: p = "automatic detection"; break;
959 default: p = "undefined";
961 cx25840_info("Configured audio standard: %s\n", p);
963 if ((audio_config >> 4) < 0xF) {
964 switch (audio_config & 0xF) {
965 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
966 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
967 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
968 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
969 case 0x04: p = "STEREO"; break;
970 case 0x05: p = "DUAL1 (AB)"; break;
971 case 0x06: p = "DUAL2 (AC) (FM)"; break;
972 case 0x07: p = "DUAL3 (BC) (FM)"; break;
973 case 0x08: p = "DUAL4 (AC) (AM)"; break;
974 case 0x09: p = "DUAL5 (BC) (AM)"; break;
975 case 0x0a: p = "SAP"; break;
976 default: p = "undefined";
978 cx25840_info("Configured audio mode: %s\n", p);
980 switch (audio_config & 0xF) {
981 case 0x00: p = "BG"; break;
982 case 0x01: p = "DK1"; break;
983 case 0x02: p = "DK2"; break;
984 case 0x03: p = "DK3"; break;
985 case 0x04: p = "I"; break;
986 case 0x05: p = "L"; break;
987 case 0x06: p = "BTSC"; break;
988 case 0x07: p = "EIAJ"; break;
989 case 0x08: p = "A2-M"; break;
990 case 0x09: p = "FM Radio"; break;
991 case 0x0f: p = "automatic standard and mode detection"; break;
992 default: p = "undefined";
994 cx25840_info("Configured audio system: %s\n", p);
997 cx25840_info("Specified standard: %s\n",
998 vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
1000 switch (state->input) {
1001 case CX25840_COMPOSITE0: p = "Composite 0"; break;
1002 case CX25840_COMPOSITE1: p = "Composite 1"; break;
1003 case CX25840_SVIDEO0: p = "S-Video 0"; break;
1004 case CX25840_SVIDEO1: p = "S-Video 1"; break;
1005 case CX25840_TUNER: p = "Tuner"; break;
1007 cx25840_info("Specified input: %s\n", p);
1008 cx25840_info("Specified audio input: %s\n",
1009 state->audio_input == 0 ? "Tuner" : "External");
1011 cx25840_info("Specified audioclock freq: %d Hz\n", state->audclk_freq);
1013 switch (pref_mode & 0xf) {
1014 case 0: p = "mono/language A"; break;
1015 case 1: p = "language B"; break;
1016 case 2: p = "language C"; break;
1017 case 3: p = "analog fallback"; break;
1018 case 4: p = "stereo"; break;
1019 case 5: p = "language AC"; break;
1020 case 6: p = "language BC"; break;
1021 case 7: p = "language AB"; break;
1022 default: p = "undefined";
1024 cx25840_info("Preferred audio mode: %s\n", p);
1026 if ((audio_config & 0xf) == 0xf) {
1027 switch ((afc0 >> 3) & 0x3) {
1028 case 0: p = "system DK"; break;
1029 case 1: p = "system L"; break;
1030 case 2: p = "autodetect"; break;
1031 default: p = "undefined";
1033 cx25840_info("Selected 65 MHz format: %s\n", p);
1035 switch (afc0 & 0x7) {
1036 case 0: p = "chroma"; break;
1037 case 1: p = "BTSC"; break;
1038 case 2: p = "EIAJ"; break;
1039 case 3: p = "A2-M"; break;
1040 case 4: p = "autodetect"; break;
1041 default: p = "undefined";
1043 cx25840_info("Selected 45 MHz format: %s\n", p);