2 * experimental driver for simple i2c audio chips.
4 * Copyright (c) 2000 Gerd Knorr
6 * Eric Sandeen (eric_sandeen@bigfoot.com)
7 * Steve VanDeBogart (vandebo@uclink.berkeley.edu)
8 * Greg Alexander (galexand@acm.org)
10 * This code is placed under the terms of the GNU General Public License
13 * debug - set to 1 if you'd like to see debug messages
17 #include <linux/config.h>
18 #include <linux/module.h>
19 #include <linux/kernel.h>
20 #include <linux/sched.h>
21 #include <linux/string.h>
22 #include <linux/timer.h>
23 #include <linux/delay.h>
24 #include <linux/errno.h>
25 #include <linux/slab.h>
26 #include <linux/videodev.h>
27 #include <linux/i2c.h>
28 #include <linux/i2c-algo-bit.h>
29 #include <linux/init.h>
30 #include <linux/smp_lock.h>
32 #include <media/audiochip.h>
37 /* ---------------------------------------------------------------------- */
40 static int debug = 0; /* insmod parameter */
41 module_param(debug, int, 0644);
43 MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
44 MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
45 MODULE_LICENSE("GPL");
48 #define dprintk if (debug) printk
50 /* ---------------------------------------------------------------------- */
56 typedef int (*getvalue)(int);
57 typedef int (*checkit)(struct CHIPSTATE*);
58 typedef int (*initialize)(struct CHIPSTATE*);
59 typedef int (*getmode)(struct CHIPSTATE*);
60 typedef void (*setmode)(struct CHIPSTATE*, int mode);
61 typedef void (*checkmode)(struct CHIPSTATE*);
64 typedef struct AUDIOCMD {
65 int count; /* # of bytes to send */
66 unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */
69 /* chip description */
71 char *name; /* chip name */
73 int addr_lo, addr_hi; /* i2c address range */
74 int registers; /* # of registers */
78 initialize initialize;
80 #define CHIP_HAS_VOLUME 1
81 #define CHIP_HAS_BASSTREBLE 2
82 #define CHIP_HAS_INPUTSEL 4
84 /* various i2c command sequences */
87 /* which register has which value */
88 int leftreg,rightreg,treblereg,bassreg;
90 /* initialize with (defaults to 65535/65535/32768/32768 */
91 int leftinit,rightinit,trebleinit,bassinit;
93 /* functions to convert the values (v4l -> chip) */
94 getvalue volfunc,treblefunc,bassfunc;
100 /* check / autoswitch audio after channel switches */
103 /* input switch register + values for v4l inputs */
109 static struct CHIPDESC chiplist[];
111 /* current state of the chip */
115 /* index into CHIPDESC array */
118 /* shadow register set */
121 /* current settings */
122 __u16 left,right,treble,bass,mode;
128 struct completion texit;
129 wait_queue_head_t wq;
130 struct timer_list wt;
135 #define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */
137 /* ---------------------------------------------------------------------- */
140 static unsigned short normal_i2c[] = {
150 static unsigned short normal_i2c_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
153 static struct i2c_driver driver;
154 static struct i2c_client client_template;
157 /* ---------------------------------------------------------------------- */
158 /* i2c I/O functions */
160 static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
162 unsigned char buffer[2];
165 dprintk("%s: chip_write: 0x%x\n",
166 i2c_clientname(&chip->c), val);
167 chip->shadow.bytes[1] = val;
169 if (1 != i2c_master_send(&chip->c,buffer,1)) {
170 printk(KERN_WARNING "%s: I/O error (write 0x%x)\n",
171 i2c_clientname(&chip->c), val);
175 dprintk("%s: chip_write: reg%d=0x%x\n",
176 i2c_clientname(&chip->c), subaddr, val);
177 chip->shadow.bytes[subaddr+1] = val;
180 if (2 != i2c_master_send(&chip->c,buffer,2)) {
181 printk(KERN_WARNING "%s: I/O error (write reg%d=0x%x)\n",
182 i2c_clientname(&chip->c), subaddr, val);
189 static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask)
193 val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
195 val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
198 return chip_write(chip, subaddr, val);
201 static int chip_read(struct CHIPSTATE *chip)
203 unsigned char buffer;
205 if (1 != i2c_master_recv(&chip->c,&buffer,1)) {
206 printk(KERN_WARNING "%s: I/O error (read)\n",
207 i2c_clientname(&chip->c));
210 dprintk("%s: chip_read: 0x%x\n",i2c_clientname(&chip->c),buffer);
214 static int chip_read2(struct CHIPSTATE *chip, int subaddr)
216 unsigned char write[1];
217 unsigned char read[1];
218 struct i2c_msg msgs[2] = {
219 { chip->c.addr, 0, 1, write },
220 { chip->c.addr, I2C_M_RD, 1, read }
224 if (2 != i2c_transfer(chip->c.adapter,msgs,2)) {
225 printk(KERN_WARNING "%s: I/O error (read2)\n",
226 i2c_clientname(&chip->c));
229 dprintk("%s: chip_read2: reg%d=0x%x\n",
230 i2c_clientname(&chip->c),subaddr,read[0]);
234 static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
241 /* update our shadow register set; print bytes if (debug > 0) */
242 dprintk("%s: chip_cmd(%s): reg=%d, data:",
243 i2c_clientname(&chip->c),name,cmd->bytes[0]);
244 for (i = 1; i < cmd->count; i++) {
245 dprintk(" 0x%x",cmd->bytes[i]);
246 chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
250 /* send data to the chip */
251 if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) {
252 printk(KERN_WARNING "%s: I/O error (%s)\n", i2c_clientname(&chip->c), name);
258 /* ---------------------------------------------------------------------- */
259 /* kernel thread for doing i2c stuff asyncronly
260 * right now it is used only to check the audio mode (mono/stereo/whatever)
261 * some time after switching to another TV channel, then turn on stereo
265 static void chip_thread_wake(unsigned long data)
267 struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
268 wake_up_interruptible(&chip->wq);
271 static int chip_thread(void *data)
273 DECLARE_WAITQUEUE(wait, current);
274 struct CHIPSTATE *chip = data;
275 struct CHIPDESC *desc = chiplist + chip->type;
277 daemonize("%s",i2c_clientname(&chip->c));
278 allow_signal(SIGTERM);
279 dprintk("%s: thread started\n", i2c_clientname(&chip->c));
282 add_wait_queue(&chip->wq, &wait);
284 set_current_state(TASK_INTERRUPTIBLE);
287 remove_wait_queue(&chip->wq, &wait);
288 if (chip->done || signal_pending(current))
290 dprintk("%s: thread wakeup\n", i2c_clientname(&chip->c));
292 /* don't do anything for radio or if mode != auto */
293 if (chip->norm == VIDEO_MODE_RADIO || chip->mode != 0)
296 /* have a look what's going on */
297 desc->checkmode(chip);
299 /* schedule next check */
300 mod_timer(&chip->wt, jiffies+2*HZ);
303 dprintk("%s: thread exiting\n", i2c_clientname(&chip->c));
304 complete_and_exit(&chip->texit, 0);
308 static void generic_checkmode(struct CHIPSTATE *chip)
310 struct CHIPDESC *desc = chiplist + chip->type;
311 int mode = desc->getmode(chip);
313 if (mode == chip->prevmode)
316 dprintk("%s: thread checkmode\n", i2c_clientname(&chip->c));
317 chip->prevmode = mode;
319 if (mode & VIDEO_SOUND_STEREO)
320 desc->setmode(chip,VIDEO_SOUND_STEREO);
321 else if (mode & VIDEO_SOUND_LANG1)
322 desc->setmode(chip,VIDEO_SOUND_LANG1);
323 else if (mode & VIDEO_SOUND_LANG2)
324 desc->setmode(chip,VIDEO_SOUND_LANG2);
326 desc->setmode(chip,VIDEO_SOUND_MONO);
329 /* ---------------------------------------------------------------------- */
330 /* audio chip descriptions - defines+functions for tda9840 */
332 #define TDA9840_SW 0x00
333 #define TDA9840_LVADJ 0x02
334 #define TDA9840_STADJ 0x03
335 #define TDA9840_TEST 0x04
337 #define TDA9840_MONO 0x10
338 #define TDA9840_STEREO 0x2a
339 #define TDA9840_DUALA 0x12
340 #define TDA9840_DUALB 0x1e
341 #define TDA9840_DUALAB 0x1a
342 #define TDA9840_DUALBA 0x16
343 #define TDA9840_EXTERNAL 0x7a
345 #define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
346 #define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
347 #define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
349 #define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
350 #define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
352 static int tda9840_getmode(struct CHIPSTATE *chip)
356 val = chip_read(chip);
357 mode = VIDEO_SOUND_MONO;
358 if (val & TDA9840_DS_DUAL)
359 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
360 if (val & TDA9840_ST_STEREO)
361 mode |= VIDEO_SOUND_STEREO;
363 dprintk ("tda9840_getmode(): raw chip read: %d, return: %d\n",
368 static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
371 int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
374 case VIDEO_SOUND_MONO:
377 case VIDEO_SOUND_STEREO:
380 case VIDEO_SOUND_LANG1:
383 case VIDEO_SOUND_LANG2:
391 chip_write(chip, TDA9840_SW, t);
394 /* ---------------------------------------------------------------------- */
395 /* audio chip descriptions - defines+functions for tda985x */
397 /* subaddresses for TDA9855 */
398 #define TDA9855_VR 0x00 /* Volume, right */
399 #define TDA9855_VL 0x01 /* Volume, left */
400 #define TDA9855_BA 0x02 /* Bass */
401 #define TDA9855_TR 0x03 /* Treble */
402 #define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
404 /* subaddresses for TDA9850 */
405 #define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
407 /* subaddesses for both chips */
408 #define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
409 #define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
410 #define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
411 #define TDA985x_A1 0x08 /* Alignment 1 for both chips */
412 #define TDA985x_A2 0x09 /* Alignment 2 for both chips */
413 #define TDA985x_A3 0x0a /* Alignment 3 for both chips */
415 /* Masks for bits in TDA9855 subaddresses */
416 /* 0x00 - VR in TDA9855 */
417 /* 0x01 - VL in TDA9855 */
418 /* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
419 * in 1dB steps - mute is 0x27 */
422 /* 0x02 - BA in TDA9855 */
423 /* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
424 * in .5dB steps - 0 is 0x0E */
427 /* 0x03 - TR in TDA9855 */
428 /* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
429 * in 3dB steps - 0 is 0x7 */
431 /* Masks for bits in both chips' subaddresses */
432 /* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
433 /* Unique to TDA9855: */
434 /* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
435 * in 3dB steps - mute is 0x0 */
437 /* Unique to TDA9850: */
438 /* lower 4 bits control stereo noise threshold, over which stereo turns off
439 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
442 /* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
443 /* Unique to TDA9855: */
444 #define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
445 #define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
446 #define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
447 #define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
448 /* Bits 0 to 3 select various combinations
449 * of line in and line out, only the
450 * interesting ones are defined */
451 #define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
452 #define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
454 /* Unique to TDA9850: */
455 /* lower 4 bits contol SAP noise threshold, over which SAP turns off
456 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
459 /* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
460 /* Common to TDA9855 and TDA9850: */
461 #define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
462 #define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
463 #define TDA985x_MONO 0 /* Forces Mono output */
464 #define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
466 /* Unique to TDA9855: */
467 #define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
468 #define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
469 #define TDA9855_LINEAR 0 /* Linear Stereo */
470 #define TDA9855_PSEUDO 1 /* Pseudo Stereo */
471 #define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
472 #define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
473 #define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
475 /* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
476 /* Common to both TDA9855 and TDA9850: */
477 /* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
478 * in .5dB steps - 0dB is 0x7 */
480 /* 0x08, 0x09 - A1 and A2 (read/write) */
481 /* Common to both TDA9855 and TDA9850: */
482 /* lower 5 bites are wideband and spectral expander alignment
483 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
484 #define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
485 #define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
486 #define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
489 /* Common to both TDA9855 and TDA9850: */
490 /* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
491 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
492 #define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
494 static int tda9855_volume(int val) { return val/0x2e8+0x27; }
495 static int tda9855_bass(int val) { return val/0xccc+0x06; }
496 static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
498 static int tda985x_getmode(struct CHIPSTATE *chip)
502 mode = ((TDA985x_STP | TDA985x_SAPP) &
503 chip_read(chip)) >> 4;
504 /* Add mono mode regardless of SAP and stereo */
505 /* Allows forced mono */
506 return mode | VIDEO_SOUND_MONO;
509 static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
512 int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
515 case VIDEO_SOUND_MONO:
518 case VIDEO_SOUND_STEREO:
519 c6 |= TDA985x_STEREO;
521 case VIDEO_SOUND_LANG1:
528 chip_write(chip,TDA985x_C6,c6);
532 /* ---------------------------------------------------------------------- */
533 /* audio chip descriptions - defines+functions for tda9873h */
535 /* Subaddresses for TDA9873H */
537 #define TDA9873_SW 0x00 /* Switching */
538 #define TDA9873_AD 0x01 /* Adjust */
539 #define TDA9873_PT 0x02 /* Port */
541 /* Subaddress 0x00: Switching Data
544 * B1, B0: Input source selection
546 * 1, 0 external stereo
549 #define TDA9873_INP_MASK 3
550 #define TDA9873_INTERNAL 0
551 #define TDA9873_EXT_STEREO 2
552 #define TDA9873_EXT_MONO 1
554 /* B3, B2: output signal select
555 * B4 : transmission mode
558 * 1, 1, 1 Stereo (reversed channel)
565 #define TDA9873_TR_MASK (7 << 2)
566 #define TDA9873_TR_MONO 4
567 #define TDA9873_TR_STEREO 1 << 4
568 #define TDA9873_TR_REVERSE (1 << 3) & (1 << 2)
569 #define TDA9873_TR_DUALA 1 << 2
570 #define TDA9873_TR_DUALB 1 << 3
572 /* output level controls
573 * B5: output level switch (0 = reduced gain, 1 = normal gain)
574 * B6: mute (1 = muted)
575 * B7: auto-mute (1 = auto-mute enabled)
578 #define TDA9873_GAIN_NORMAL 1 << 5
579 #define TDA9873_MUTE 1 << 6
580 #define TDA9873_AUTOMUTE 1 << 7
582 /* Subaddress 0x01: Adjust/standard */
584 /* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
585 * Recommended value is +0 dB
588 #define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
590 /* Bits C6..C4 control FM stantard
592 * 0, 0, 0 B/G (PAL FM)
601 #define TDA9873_DK1 2
602 #define TDA9873_DK2 3
603 #define TDA9873_DK3 4
606 /* C7 controls identification response time (1=fast/0=normal)
608 #define TDA9873_IDR_NORM 0
609 #define TDA9873_IDR_FAST 1 << 7
612 /* Subaddress 0x02: Port data */
614 /* E1, E0 free programmable ports P1/P2
621 #define TDA9873_PORTS 3
624 #define TDA9873_TST_PORT 1 << 2
626 /* E5..E3 control mono output channel (together with transmission mode bit B4)
631 * 0 1 0 1 mono (from stereo decoder)
633 #define TDA9873_MOUT_MONO 0
634 #define TDA9873_MOUT_FMONO 0
635 #define TDA9873_MOUT_DUALA 0
636 #define TDA9873_MOUT_DUALB 1 << 3
637 #define TDA9873_MOUT_ST 1 << 4
638 #define TDA9873_MOUT_EXTM (1 << 4 ) & (1 << 3)
639 #define TDA9873_MOUT_EXTL 1 << 5
640 #define TDA9873_MOUT_EXTR (1 << 5 ) & (1 << 3)
641 #define TDA9873_MOUT_EXTLR (1 << 5 ) & (1 << 4)
642 #define TDA9873_MOUT_MUTE (1 << 5 ) & (1 << 4) & (1 << 3)
644 /* Status bits: (chip read) */
645 #define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
646 #define TDA9873_STEREO 2 /* Stereo sound is identified */
647 #define TDA9873_DUAL 4 /* Dual sound is identified */
649 static int tda9873_getmode(struct CHIPSTATE *chip)
653 val = chip_read(chip);
654 mode = VIDEO_SOUND_MONO;
655 if (val & TDA9873_STEREO)
656 mode |= VIDEO_SOUND_STEREO;
657 if (val & TDA9873_DUAL)
658 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
659 dprintk ("tda9873_getmode(): raw chip read: %d, return: %d\n",
664 static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
666 int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
667 /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
669 if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
670 dprintk("tda9873_setmode(): external input\n");
674 dprintk("tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
675 dprintk("tda9873_setmode(): sw_data = %d\n", sw_data);
678 case VIDEO_SOUND_MONO:
679 sw_data |= TDA9873_TR_MONO;
681 case VIDEO_SOUND_STEREO:
682 sw_data |= TDA9873_TR_STEREO;
684 case VIDEO_SOUND_LANG1:
685 sw_data |= TDA9873_TR_DUALA;
687 case VIDEO_SOUND_LANG2:
688 sw_data |= TDA9873_TR_DUALB;
695 chip_write(chip, TDA9873_SW, sw_data);
696 dprintk("tda9873_setmode(): req. mode %d; chip_write: %d\n",
700 static int tda9873_checkit(struct CHIPSTATE *chip)
704 if (-1 == (rc = chip_read2(chip,254)))
706 return (rc & ~0x1f) == 0x80;
710 /* ---------------------------------------------------------------------- */
711 /* audio chip description - defines+functions for tda9874h and tda9874a */
712 /* Dariusz Kowalewski <darekk@automex.pl> */
714 /* Subaddresses for TDA9874H and TDA9874A (slave rx) */
715 #define TDA9874A_AGCGR 0x00 /* AGC gain */
716 #define TDA9874A_GCONR 0x01 /* general config */
717 #define TDA9874A_MSR 0x02 /* monitor select */
718 #define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
719 #define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
720 #define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
721 #define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
722 #define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
723 #define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
724 #define TDA9874A_DCR 0x09 /* demodulator config */
725 #define TDA9874A_FMER 0x0a /* FM de-emphasis */
726 #define TDA9874A_FMMR 0x0b /* FM dematrix */
727 #define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
728 #define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
729 #define TDA9874A_NCONR 0x0e /* NICAM config */
730 #define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
731 #define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
732 #define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
733 #define TDA9874A_AMCONR 0x12 /* audio mute control */
734 #define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
735 #define TDA9874A_AOSR 0x14 /* analog output select */
736 #define TDA9874A_DAICONR 0x15 /* digital audio interface config */
737 #define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
738 #define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
739 #define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
740 #define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
742 /* Subaddresses for TDA9874H and TDA9874A (slave tx) */
743 #define TDA9874A_DSR 0x00 /* device status */
744 #define TDA9874A_NSR 0x01 /* NICAM status */
745 #define TDA9874A_NECR 0x02 /* NICAM error count */
746 #define TDA9874A_DR1 0x03 /* add. data LSB */
747 #define TDA9874A_DR2 0x04 /* add. data MSB */
748 #define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
749 #define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
750 #define TDA9874A_SIFLR 0x07 /* SIF level */
751 #define TDA9874A_TR2 252 /* test reg. 2 */
752 #define TDA9874A_TR1 253 /* test reg. 1 */
753 #define TDA9874A_DIC 254 /* device id. code */
754 #define TDA9874A_SIC 255 /* software id. code */
757 static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
758 static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
759 static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
760 static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
761 static int tda9874a_dic = -1; /* device id. code */
763 /* insmod options for tda9874a */
764 static unsigned int tda9874a_SIF = UNSET;
765 static unsigned int tda9874a_AMSEL = UNSET;
766 static unsigned int tda9874a_STD = UNSET;
767 module_param(tda9874a_SIF, int, 0444);
768 module_param(tda9874a_AMSEL, int, 0444);
769 module_param(tda9874a_STD, int, 0444);
772 * initialization table for tda9874 decoder:
773 * - carrier 1 freq. registers (3 bytes)
774 * - carrier 2 freq. registers (3 bytes)
775 * - demudulator config register
776 * - FM de-emphasis register (slow identification mode)
777 * Note: frequency registers must be written in single i2c transfer.
779 static struct tda9874a_MODES {
782 } tda9874a_modelist[9] = {
784 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
786 { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
788 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
790 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
792 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
794 { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
796 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
797 { "NICAM, D/K", /* default */
798 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
800 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
803 static int tda9874a_setup(struct CHIPSTATE *chip)
805 chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
806 chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
807 chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
808 if(tda9874a_dic == 0x11) {
809 chip_write(chip, TDA9874A_FMMR, 0x80);
810 } else { /* dic == 0x07 */
811 chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
812 chip_write(chip, TDA9874A_FMMR, 0x00);
814 chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
815 chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
816 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
817 chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
818 /* Note: If signal quality is poor you may want to change NICAM */
819 /* error limit registers (NLELR and NUELR) to some greater values. */
820 /* Then the sound would remain stereo, but won't be so clear. */
821 chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
822 chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
824 if(tda9874a_dic == 0x11) {
825 chip_write(chip, TDA9874A_AMCONR, 0xf9);
826 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
827 chip_write(chip, TDA9874A_AOSR, 0x80);
828 chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
829 chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
830 } else { /* dic == 0x07 */
831 chip_write(chip, TDA9874A_AMCONR, 0xfb);
832 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
833 chip_write(chip, TDA9874A_AOSR, 0x00); // or 0x10
835 dprintk("tda9874a_setup(): %s [0x%02X].\n",
836 tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
840 static int tda9874a_getmode(struct CHIPSTATE *chip)
843 int necr; /* just for debugging */
845 mode = VIDEO_SOUND_MONO;
847 if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
849 if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
851 if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
854 /* need to store dsr/nsr somewhere */
855 chip->shadow.bytes[MAXREGS-2] = dsr;
856 chip->shadow.bytes[MAXREGS-1] = nsr;
859 /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
860 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
861 * that sound has (temporarily) switched from NICAM to
862 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
863 * error count. So in fact there is no stereo in this case :-(
864 * But changing the mode to VIDEO_SOUND_MONO would switch
865 * external 4052 multiplexer in audio_hook().
868 if((nsr & 0x02) && !(dsr & 0x10)) /* NSR.S/MB=1 and DSR.AMSTAT=0 */
869 mode |= VIDEO_SOUND_STEREO;
871 if(nsr & 0x02) /* NSR.S/MB=1 */
872 mode |= VIDEO_SOUND_STEREO;
874 if(nsr & 0x01) /* NSR.D/SB=1 */
875 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
877 if(dsr & 0x02) /* DSR.IDSTE=1 */
878 mode |= VIDEO_SOUND_STEREO;
879 if(dsr & 0x04) /* DSR.IDDUA=1 */
880 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
883 dprintk("tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
884 dsr, nsr, necr, mode);
888 static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
890 /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
891 /* If auto-muting is disabled, we can hear a signal of degrading quality. */
893 if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
894 tda9874a_NCONR &= 0xfe; /* enable */
896 tda9874a_NCONR |= 0x01; /* disable */
897 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
900 /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
901 * and has auto-select function for audio output (AOSR register).
902 * Old TDA9874H doesn't support these features.
903 * TDA9874A also has additional mono output pin (OUTM), which
904 * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
906 if(tda9874a_dic == 0x11) {
908 int mdacosr = (tda9874a_mode) ? 0x82:0x80;
911 case VIDEO_SOUND_MONO:
912 case VIDEO_SOUND_STEREO:
914 case VIDEO_SOUND_LANG1:
915 aosr = 0x80; /* auto-select, dual A/A */
916 mdacosr = (tda9874a_mode) ? 0x82:0x80;
918 case VIDEO_SOUND_LANG2:
919 aosr = 0xa0; /* auto-select, dual B/B */
920 mdacosr = (tda9874a_mode) ? 0x83:0x81;
926 chip_write(chip, TDA9874A_AOSR, aosr);
927 chip_write(chip, TDA9874A_MDACOSR, mdacosr);
929 dprintk("tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
930 mode, aosr, mdacosr);
932 } else { /* dic == 0x07 */
936 case VIDEO_SOUND_MONO:
937 fmmr = 0x00; /* mono */
938 aosr = 0x10; /* A/A */
940 case VIDEO_SOUND_STEREO:
943 aosr = 0x00; /* handled by NICAM auto-mute */
945 fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
949 case VIDEO_SOUND_LANG1:
950 fmmr = 0x02; /* dual */
951 aosr = 0x10; /* dual A/A */
953 case VIDEO_SOUND_LANG2:
954 fmmr = 0x02; /* dual */
955 aosr = 0x20; /* dual B/B */
961 chip_write(chip, TDA9874A_FMMR, fmmr);
962 chip_write(chip, TDA9874A_AOSR, aosr);
964 dprintk("tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
969 static int tda9874a_checkit(struct CHIPSTATE *chip)
971 int dic,sic; /* device id. and software id. codes */
973 if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
975 if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
978 dprintk("tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
980 if((dic == 0x11)||(dic == 0x07)) {
981 printk("tvaudio: found tda9874%s.\n", (dic == 0x11) ? "a":"h");
982 tda9874a_dic = dic; /* remember device id. */
985 return 0; /* not found */
988 static int tda9874a_initialize(struct CHIPSTATE *chip)
990 if (tda9874a_SIF > 2)
992 if (tda9874a_STD >= 8)
994 if(tda9874a_AMSEL > 1)
997 if(tda9874a_SIF == 1)
998 tda9874a_GCONR = 0xc0; /* sound IF input 1 */
1000 tda9874a_GCONR = 0xc1; /* sound IF input 2 */
1002 tda9874a_ESP = tda9874a_STD;
1003 tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
1005 if(tda9874a_AMSEL == 0)
1006 tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
1008 tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1010 tda9874a_setup(chip);
1015 /* ---------------------------------------------------------------------- */
1016 /* audio chip descriptions - defines+functions for tea6420 */
1018 #define TEA6300_VL 0x00 /* volume left */
1019 #define TEA6300_VR 0x01 /* volume right */
1020 #define TEA6300_BA 0x02 /* bass */
1021 #define TEA6300_TR 0x03 /* treble */
1022 #define TEA6300_FA 0x04 /* fader control */
1023 #define TEA6300_S 0x05 /* switch register */
1024 /* values for those registers: */
1025 #define TEA6300_S_SA 0x01 /* stereo A input */
1026 #define TEA6300_S_SB 0x02 /* stereo B */
1027 #define TEA6300_S_SC 0x04 /* stereo C */
1028 #define TEA6300_S_GMU 0x80 /* general mute */
1030 #define TEA6420_S_SA 0x00 /* stereo A input */
1031 #define TEA6420_S_SB 0x01 /* stereo B */
1032 #define TEA6420_S_SC 0x02 /* stereo C */
1033 #define TEA6420_S_SD 0x03 /* stereo D */
1034 #define TEA6420_S_SE 0x04 /* stereo E */
1035 #define TEA6420_S_GMU 0x05 /* general mute */
1037 static int tea6300_shift10(int val) { return val >> 10; }
1038 static int tea6300_shift12(int val) { return val >> 12; }
1041 /* ---------------------------------------------------------------------- */
1042 /* audio chip descriptions - defines+functions for tda8425 */
1044 #define TDA8425_VL 0x00 /* volume left */
1045 #define TDA8425_VR 0x01 /* volume right */
1046 #define TDA8425_BA 0x02 /* bass */
1047 #define TDA8425_TR 0x03 /* treble */
1048 #define TDA8425_S1 0x08 /* switch functions */
1049 /* values for those registers: */
1050 #define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
1051 #define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
1052 #define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
1053 #define TDA8425_S1_MU 0x20 /* mute bit */
1054 #define TDA8425_S1_STEREO 0x18 /* stereo bits */
1055 #define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1056 #define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
1057 #define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
1058 #define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
1059 #define TDA8425_S1_ML 0x06 /* language selector */
1060 #define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
1061 #define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
1062 #define TDA8425_S1_ML_STEREO 0x06 /* stereo */
1063 #define TDA8425_S1_IS 0x01 /* channel selector */
1066 static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1067 static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1069 static int tda8425_initialize(struct CHIPSTATE *chip)
1071 struct CHIPDESC *desc = chiplist + chip->type;
1072 int inputmap[8] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1,
1073 /* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF,
1074 /* off */ TDA8425_S1_OFF, /* on */ TDA8425_S1_CH2};
1076 if (chip->c.adapter->id == (I2C_ALGO_BIT | I2C_HW_B_RIVA)) {
1077 memcpy (desc->inputmap, inputmap, sizeof (inputmap));
1082 static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
1084 int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1086 if (mode & VIDEO_SOUND_LANG1) {
1087 s1 |= TDA8425_S1_ML_SOUND_A;
1088 s1 |= TDA8425_S1_STEREO_PSEUDO;
1090 } else if (mode & VIDEO_SOUND_LANG2) {
1091 s1 |= TDA8425_S1_ML_SOUND_B;
1092 s1 |= TDA8425_S1_STEREO_PSEUDO;
1095 s1 |= TDA8425_S1_ML_STEREO;
1097 if (mode & VIDEO_SOUND_MONO)
1098 s1 |= TDA8425_S1_STEREO_MONO;
1099 if (mode & VIDEO_SOUND_STEREO)
1100 s1 |= TDA8425_S1_STEREO_SPATIAL;
1102 chip_write(chip,TDA8425_S1,s1);
1106 /* ---------------------------------------------------------------------- */
1107 /* audio chip descriptions - defines+functions for pic16c54 (PV951) */
1109 /* the registers of 16C54, I2C sub address. */
1110 #define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
1111 #define PIC16C54_REG_MISC 0x02
1113 /* bit definition of the RESET register, I2C data. */
1114 #define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1115 /* code of remote controller */
1116 #define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
1117 #define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
1118 #define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
1119 #define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1120 #define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
1121 #define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
1122 #define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
1124 /* ---------------------------------------------------------------------- */
1125 /* audio chip descriptions - defines+functions for TA8874Z */
1128 #define TA8874Z_LED_STE 0x80
1129 #define TA8874Z_LED_BIL 0x40
1130 #define TA8874Z_LED_EXT 0x20
1131 #define TA8874Z_MONO_SET 0x10
1132 #define TA8874Z_MUTE 0x08
1133 #define TA8874Z_F_MONO 0x04
1134 #define TA8874Z_MODE_SUB 0x02
1135 #define TA8874Z_MODE_MAIN 0x01
1138 //#define TA8874Z_TI 0x80 // test mode
1139 #define TA8874Z_SEPARATION 0x3f
1140 #define TA8874Z_SEPARATION_DEFAULT 0x10
1143 #define TA8874Z_B1 0x80
1144 #define TA8874Z_B0 0x40
1145 #define TA8874Z_CHAG_FLAG 0x20
1152 static int ta8874z_getmode(struct CHIPSTATE *chip)
1156 val = chip_read(chip);
1157 mode = VIDEO_SOUND_MONO;
1158 if (val & TA8874Z_B1){
1159 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
1160 }else if (!(val & TA8874Z_B0)){
1161 mode |= VIDEO_SOUND_STEREO;
1163 //dprintk ("ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode);
1167 static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1168 static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1169 static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1170 static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1172 static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
1176 dprintk("ta8874z_setmode(): mode: 0x%02x\n", mode);
1179 case VIDEO_SOUND_MONO:
1182 case VIDEO_SOUND_STEREO:
1183 t = &ta8874z_stereo;
1185 case VIDEO_SOUND_LANG1:
1188 case VIDEO_SOUND_LANG2:
1196 chip_cmd(chip, "TA8874Z", t);
1199 static int ta8874z_checkit(struct CHIPSTATE *chip)
1202 rc = chip_read(chip);
1203 return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1206 /* ---------------------------------------------------------------------- */
1207 /* audio chip descriptions - struct CHIPDESC */
1209 /* insmod options to enable/disable individual audio chips */
1216 int tea6300 = 0; // address clash with msp34xx
1219 int ta8874z = 0; // address clash with tda9840
1221 module_param(tda8425, int, 0444);
1222 module_param(tda9840, int, 0444);
1223 module_param(tda9850, int, 0444);
1224 module_param(tda9855, int, 0444);
1225 module_param(tda9873, int, 0444);
1226 module_param(tda9874a, int, 0444);
1227 module_param(tea6300, int, 0444);
1228 module_param(tea6420, int, 0444);
1229 module_param(pic16c54, int, 0444);
1230 module_param(ta8874z, int, 0444);
1232 static struct CHIPDESC chiplist[] = {
1235 .id = I2C_DRIVERID_TDA9840,
1236 .insmodopt = &tda9840,
1237 .addr_lo = I2C_TDA9840 >> 1,
1238 .addr_hi = I2C_TDA9840 >> 1,
1241 .getmode = tda9840_getmode,
1242 .setmode = tda9840_setmode,
1243 .checkmode = generic_checkmode,
1245 .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1246 /* ,TDA9840_SW, TDA9840_MONO */} }
1250 .id = I2C_DRIVERID_TDA9873,
1251 .checkit = tda9873_checkit,
1252 .insmodopt = &tda9873,
1253 .addr_lo = I2C_TDA985x_L >> 1,
1254 .addr_hi = I2C_TDA985x_H >> 1,
1256 .flags = CHIP_HAS_INPUTSEL,
1258 .getmode = tda9873_getmode,
1259 .setmode = tda9873_setmode,
1260 .checkmode = generic_checkmode,
1262 .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1263 .inputreg = TDA9873_SW,
1264 .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
1265 .inputmap = {0xa0, 0xa2, 0xa0, 0xa0, 0xc0},
1266 .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1270 .name = "tda9874h/a",
1271 .id = I2C_DRIVERID_TDA9874,
1272 .checkit = tda9874a_checkit,
1273 .initialize = tda9874a_initialize,
1274 .insmodopt = &tda9874a,
1275 .addr_lo = I2C_TDA9874 >> 1,
1276 .addr_hi = I2C_TDA9874 >> 1,
1278 .getmode = tda9874a_getmode,
1279 .setmode = tda9874a_setmode,
1280 .checkmode = generic_checkmode,
1284 .id = I2C_DRIVERID_TDA9850,
1285 .insmodopt = &tda9850,
1286 .addr_lo = I2C_TDA985x_L >> 1,
1287 .addr_hi = I2C_TDA985x_H >> 1,
1290 .getmode = tda985x_getmode,
1291 .setmode = tda985x_setmode,
1293 .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1297 .id = I2C_DRIVERID_TDA9855,
1298 .insmodopt = &tda9855,
1299 .addr_lo = I2C_TDA985x_L >> 1,
1300 .addr_hi = I2C_TDA985x_H >> 1,
1302 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1304 .leftreg = TDA9855_VL,
1305 .rightreg = TDA9855_VR,
1306 .bassreg = TDA9855_BA,
1307 .treblereg = TDA9855_TR,
1308 .volfunc = tda9855_volume,
1309 .bassfunc = tda9855_bass,
1310 .treblefunc = tda9855_treble,
1312 .getmode = tda985x_getmode,
1313 .setmode = tda985x_setmode,
1315 .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1316 TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1317 TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1318 0x07, 0x10, 0x10, 0x03 }}
1322 .id = I2C_DRIVERID_TEA6300,
1323 .insmodopt = &tea6300,
1324 .addr_lo = I2C_TEA6300 >> 1,
1325 .addr_hi = I2C_TEA6300 >> 1,
1327 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1329 .leftreg = TEA6300_VR,
1330 .rightreg = TEA6300_VL,
1331 .bassreg = TEA6300_BA,
1332 .treblereg = TEA6300_TR,
1333 .volfunc = tea6300_shift10,
1334 .bassfunc = tea6300_shift12,
1335 .treblefunc = tea6300_shift12,
1337 .inputreg = TEA6300_S,
1338 .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1339 .inputmute = TEA6300_S_GMU,
1343 .id = I2C_DRIVERID_TEA6420,
1344 .insmodopt = &tea6420,
1345 .addr_lo = I2C_TEA6420 >> 1,
1346 .addr_hi = I2C_TEA6420 >> 1,
1348 .flags = CHIP_HAS_INPUTSEL,
1351 .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1352 .inputmute = TEA6300_S_GMU,
1356 .id = I2C_DRIVERID_TDA8425,
1357 .insmodopt = &tda8425,
1358 .addr_lo = I2C_TDA8425 >> 1,
1359 .addr_hi = I2C_TDA8425 >> 1,
1361 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1363 .leftreg = TDA8425_VL,
1364 .rightreg = TDA8425_VR,
1365 .bassreg = TDA8425_BA,
1366 .treblereg = TDA8425_TR,
1367 .volfunc = tda8425_shift10,
1368 .bassfunc = tda8425_shift12,
1369 .treblefunc = tda8425_shift12,
1371 .inputreg = TDA8425_S1,
1372 .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1373 .inputmute = TDA8425_S1_OFF,
1375 .setmode = tda8425_setmode,
1376 .initialize = tda8425_initialize,
1379 .name = "pic16c54 (PV951)",
1380 .id = I2C_DRIVERID_PIC16C54_PV951,
1381 .insmodopt = &pic16c54,
1382 .addr_lo = I2C_PIC16C54 >> 1,
1383 .addr_hi = I2C_PIC16C54>> 1,
1385 .flags = CHIP_HAS_INPUTSEL,
1387 .inputreg = PIC16C54_REG_MISC,
1388 .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1389 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1390 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1391 PIC16C54_MISC_SND_MUTE,PIC16C54_MISC_SND_MUTE,
1392 PIC16C54_MISC_SND_NOTMUTE},
1393 .inputmute = PIC16C54_MISC_SND_MUTE,
1398 //.id = I2C_DRIVERID_TA8874Z,
1399 .checkit = ta8874z_checkit,
1400 .insmodopt = &ta8874z,
1401 .addr_lo = I2C_TDA9840 >> 1,
1402 .addr_hi = I2C_TDA9840 >> 1,
1405 .getmode = ta8874z_getmode,
1406 .setmode = ta8874z_setmode,
1407 .checkmode = generic_checkmode,
1409 .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1411 { .name = NULL } /* EOF */
1415 /* ---------------------------------------------------------------------- */
1416 /* i2c registration */
1418 static int chip_attach(struct i2c_adapter *adap, int addr, int kind)
1420 struct CHIPSTATE *chip;
1421 struct CHIPDESC *desc;
1423 chip = kmalloc(sizeof(*chip),GFP_KERNEL);
1426 memset(chip,0,sizeof(*chip));
1427 memcpy(&chip->c,&client_template,sizeof(struct i2c_client));
1428 chip->c.adapter = adap;
1429 chip->c.addr = addr;
1430 i2c_set_clientdata(&chip->c, chip);
1432 /* find description for the chip */
1433 dprintk("tvaudio: chip found @ i2c-addr=0x%x\n", addr<<1);
1434 for (desc = chiplist; desc->name != NULL; desc++) {
1435 if (0 == *(desc->insmodopt))
1437 if (addr < desc->addr_lo ||
1438 addr > desc->addr_hi)
1440 if (desc->checkit && !desc->checkit(chip))
1444 if (desc->name == NULL) {
1445 dprintk("tvaudio: no matching chip description found\n");
1448 printk("tvaudio: found %s @ 0x%x\n", desc->name, addr<<1);
1449 dprintk("tvaudio: matches:%s%s%s.\n",
1450 (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
1451 (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1452 (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
1454 /* fill required data structures */
1455 strcpy(i2c_clientname(&chip->c),desc->name);
1456 chip->type = desc-chiplist;
1457 chip->shadow.count = desc->registers+1;
1458 chip->prevmode = -1;
1460 i2c_attach_client(&chip->c);
1462 /* initialization */
1463 if (desc->initialize != NULL)
1464 desc->initialize(chip);
1466 chip_cmd(chip,"init",&desc->init);
1468 if (desc->flags & CHIP_HAS_VOLUME) {
1469 chip->left = desc->leftinit ? desc->leftinit : 65535;
1470 chip->right = desc->rightinit ? desc->rightinit : 65535;
1471 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1472 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1474 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1475 chip->treble = desc->trebleinit ? desc->trebleinit : 32768;
1476 chip->bass = desc->bassinit ? desc->bassinit : 32768;
1477 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1478 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1482 if (desc->checkmode) {
1483 /* start async thread */
1484 init_timer(&chip->wt);
1485 chip->wt.function = chip_thread_wake;
1486 chip->wt.data = (unsigned long)chip;
1487 init_waitqueue_head(&chip->wq);
1488 init_completion(&chip->texit);
1489 chip->tpid = kernel_thread(chip_thread,(void *)chip,0);
1491 printk(KERN_WARNING "%s: kernel_thread() failed\n",
1492 i2c_clientname(&chip->c));
1493 wake_up_interruptible(&chip->wq);
1498 static int chip_probe(struct i2c_adapter *adap)
1500 /* don't attach on saa7146 based cards,
1501 because dedicated drivers are used */
1502 if ((adap->id & I2C_ALGO_SAA7146))
1504 #ifdef I2C_CLASS_TV_ANALOG
1505 if (adap->class & I2C_CLASS_TV_ANALOG)
1506 return i2c_probe(adap, &addr_data, chip_attach);
1509 case I2C_ALGO_BIT | I2C_HW_B_BT848:
1510 case I2C_ALGO_BIT | I2C_HW_B_RIVA:
1511 case I2C_ALGO_SAA7134:
1512 return i2c_probe(adap, &addr_data, chip_attach);
1518 static int chip_detach(struct i2c_client *client)
1520 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1522 del_timer_sync(&chip->wt);
1523 if (chip->tpid >= 0) {
1524 /* shutdown async thread */
1526 wake_up_interruptible(&chip->wq);
1527 wait_for_completion(&chip->texit);
1530 i2c_detach_client(&chip->c);
1535 /* ---------------------------------------------------------------------- */
1536 /* video4linux interface */
1538 static int chip_command(struct i2c_client *client,
1539 unsigned int cmd, void *arg)
1542 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1543 struct CHIPDESC *desc = chiplist + chip->type;
1545 dprintk("%s: chip_command 0x%x\n",i2c_clientname(&chip->c),cmd);
1548 case AUDC_SET_INPUT:
1549 if (desc->flags & CHIP_HAS_INPUTSEL) {
1551 chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1553 chip_write_masked(chip,desc->inputreg,desc->inputmap[*sarg],desc->inputmask);
1557 case AUDC_SET_RADIO:
1558 dprintk(KERN_DEBUG "tvaudio: AUDC_SET_RADIO\n");
1559 chip->norm = VIDEO_MODE_RADIO;
1560 chip->watch_stereo = 0;
1561 /* del_timer(&chip->wt); */
1564 /* --- v4l ioctls --- */
1565 /* take care: bttv does userspace copying, we'll get a
1566 kernel pointer here... */
1569 struct video_audio *va = arg;
1571 if (desc->flags & CHIP_HAS_VOLUME) {
1572 va->flags |= VIDEO_AUDIO_VOLUME;
1573 va->volume = max(chip->left,chip->right);
1574 va->balance = (32768*min(chip->left,chip->right))/
1575 (va->volume ? va->volume : 1);
1577 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1578 va->flags |= VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE;
1579 va->bass = chip->bass;
1580 va->treble = chip->treble;
1582 if (chip->norm != VIDEO_MODE_RADIO) {
1584 va->mode = desc->getmode(chip);
1586 va->mode = VIDEO_SOUND_MONO;
1593 struct video_audio *va = arg;
1595 if (desc->flags & CHIP_HAS_VOLUME) {
1596 chip->left = (min(65536 - va->balance,32768) *
1597 va->volume) / 32768;
1598 chip->right = (min(va->balance,(__u16)32768) *
1599 va->volume) / 32768;
1600 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1601 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1603 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1604 chip->bass = va->bass;
1605 chip->treble = va->treble;
1606 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1607 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1609 if (desc->setmode && va->mode) {
1610 chip->watch_stereo = 0;
1611 /* del_timer(&chip->wt); */
1612 chip->mode = va->mode;
1613 desc->setmode(chip,va->mode);
1619 struct video_channel *vc = arg;
1621 dprintk(KERN_DEBUG "tvaudio: VIDIOCSCHAN\n");
1622 chip->norm = vc->norm;
1627 chip->mode = 0; /* automatic */
1628 if (desc->checkmode) {
1629 desc->setmode(chip,VIDEO_SOUND_MONO);
1630 if (chip->prevmode != VIDEO_SOUND_MONO)
1631 chip->prevmode = -1; /* reset previous mode */
1632 mod_timer(&chip->wt, jiffies+2*HZ);
1633 /* the thread will call checkmode() later */
1641 static struct i2c_driver driver = {
1642 .owner = THIS_MODULE,
1643 .name = "generic i2c audio driver",
1644 .id = I2C_DRIVERID_TVAUDIO,
1645 .flags = I2C_DF_NOTIFY,
1646 .attach_adapter = chip_probe,
1647 .detach_client = chip_detach,
1648 .command = chip_command,
1651 static struct i2c_client client_template =
1653 I2C_DEVNAME("(unset)"),
1654 .flags = I2C_CLIENT_ALLOW_USE,
1658 static int __init audiochip_init_module(void)
1660 struct CHIPDESC *desc;
1661 printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1662 printk(KERN_INFO "tvaudio: known chips: ");
1663 for (desc = chiplist; desc->name != NULL; desc++)
1664 printk("%s%s", (desc == chiplist) ? "" : ",",desc->name);
1667 return i2c_add_driver(&driver);
1670 static void __exit audiochip_cleanup_module(void)
1672 i2c_del_driver(&driver);
1675 module_init(audiochip_init_module);
1676 module_exit(audiochip_cleanup_module);