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fae91e72b7
I2C_DEVNAME and i2c_clientname were introduced in 2.5.68 [1] to help media/video driver authors who wanted their code to be compatible with both Linux 2.4 and 2.6. The cause of the incompatibility has gone since [2], so I think we can get rid of them, as they tend to make the code harder to read and longer to preprocess/compile for no more benefit. I'd hope nobody seriously attempts to keep media/video driver compatible across Linux trees anymore, BTW. [1] http://marc.theaimsgroup.com/?l=linux-kernel&m=104930186524598&w=2 [2] http://www.linuxhq.com/kernel/v2.6/0-test3/include/linux/i2c.h Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1732 lines
51 KiB
C
1732 lines
51 KiB
C
/*
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* experimental driver for simple i2c audio chips.
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*
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* Copyright (c) 2000 Gerd Knorr
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* based on code by:
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* Eric Sandeen (eric_sandeen@bigfoot.com)
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* Steve VanDeBogart (vandebo@uclink.berkeley.edu)
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* Greg Alexander (galexand@acm.org)
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*
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* This code is placed under the terms of the GNU General Public License
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*
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* OPTIONS:
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* debug - set to 1 if you'd like to see debug messages
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*
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/videodev.h>
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#include <linux/i2c.h>
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#include <linux/i2c-algo-bit.h>
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#include <linux/init.h>
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#include <linux/smp_lock.h>
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#include <media/audiochip.h>
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#include <media/id.h>
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#include "tvaudio.h"
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/* ---------------------------------------------------------------------- */
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/* insmod args */
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static int debug = 0; /* insmod parameter */
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module_param(debug, int, 0644);
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MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
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MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
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MODULE_LICENSE("GPL");
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#define UNSET (-1U)
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#define dprintk if (debug) printk
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/* ---------------------------------------------------------------------- */
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/* our structs */
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#define MAXREGS 64
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struct CHIPSTATE;
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typedef int (*getvalue)(int);
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typedef int (*checkit)(struct CHIPSTATE*);
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typedef int (*initialize)(struct CHIPSTATE*);
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typedef int (*getmode)(struct CHIPSTATE*);
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typedef void (*setmode)(struct CHIPSTATE*, int mode);
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typedef void (*checkmode)(struct CHIPSTATE*);
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/* i2c command */
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typedef struct AUDIOCMD {
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int count; /* # of bytes to send */
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unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */
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} audiocmd;
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/* chip description */
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struct CHIPDESC {
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char *name; /* chip name */
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int id; /* ID */
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int addr_lo, addr_hi; /* i2c address range */
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int registers; /* # of registers */
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int *insmodopt;
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checkit checkit;
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initialize initialize;
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int flags;
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#define CHIP_HAS_VOLUME 1
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#define CHIP_HAS_BASSTREBLE 2
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#define CHIP_HAS_INPUTSEL 4
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/* various i2c command sequences */
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audiocmd init;
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/* which register has which value */
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int leftreg,rightreg,treblereg,bassreg;
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/* initialize with (defaults to 65535/65535/32768/32768 */
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int leftinit,rightinit,trebleinit,bassinit;
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/* functions to convert the values (v4l -> chip) */
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getvalue volfunc,treblefunc,bassfunc;
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/* get/set mode */
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getmode getmode;
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setmode setmode;
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/* check / autoswitch audio after channel switches */
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checkmode checkmode;
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/* input switch register + values for v4l inputs */
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int inputreg;
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int inputmap[8];
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int inputmute;
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int inputmask;
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};
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static struct CHIPDESC chiplist[];
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/* current state of the chip */
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struct CHIPSTATE {
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struct i2c_client c;
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/* index into CHIPDESC array */
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int type;
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/* shadow register set */
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audiocmd shadow;
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/* current settings */
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__u16 left,right,treble,bass,mode;
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int prevmode;
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int norm;
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/* thread */
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pid_t tpid;
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struct completion texit;
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wait_queue_head_t wq;
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struct timer_list wt;
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int done;
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int watch_stereo;
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};
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#define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */
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/* ---------------------------------------------------------------------- */
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/* i2c addresses */
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static unsigned short normal_i2c[] = {
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I2C_TDA8425 >> 1,
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I2C_TEA6300 >> 1,
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I2C_TEA6420 >> 1,
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I2C_TDA9840 >> 1,
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I2C_TDA985x_L >> 1,
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I2C_TDA985x_H >> 1,
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I2C_TDA9874 >> 1,
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I2C_PIC16C54 >> 1,
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I2C_CLIENT_END };
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I2C_CLIENT_INSMOD;
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static struct i2c_driver driver;
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static struct i2c_client client_template;
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/* ---------------------------------------------------------------------- */
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/* i2c I/O functions */
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static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
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{
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unsigned char buffer[2];
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if (-1 == subaddr) {
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dprintk("%s: chip_write: 0x%x\n", chip->c.name, val);
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chip->shadow.bytes[1] = val;
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buffer[0] = val;
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if (1 != i2c_master_send(&chip->c,buffer,1)) {
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printk(KERN_WARNING "%s: I/O error (write 0x%x)\n",
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chip->c.name, val);
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return -1;
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}
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} else {
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dprintk("%s: chip_write: reg%d=0x%x\n",
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chip->c.name, subaddr, val);
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chip->shadow.bytes[subaddr+1] = val;
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buffer[0] = subaddr;
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buffer[1] = val;
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if (2 != i2c_master_send(&chip->c,buffer,2)) {
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printk(KERN_WARNING "%s: I/O error (write reg%d=0x%x)\n",
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chip->c.name, subaddr, val);
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return -1;
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}
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}
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return 0;
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}
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static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask)
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{
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if (mask != 0) {
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if (-1 == subaddr) {
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val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
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} else {
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val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
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}
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}
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return chip_write(chip, subaddr, val);
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}
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static int chip_read(struct CHIPSTATE *chip)
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{
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unsigned char buffer;
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if (1 != i2c_master_recv(&chip->c,&buffer,1)) {
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printk(KERN_WARNING "%s: I/O error (read)\n", chip->c.name);
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return -1;
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}
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dprintk("%s: chip_read: 0x%x\n", chip->c.name, buffer);
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return buffer;
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}
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static int chip_read2(struct CHIPSTATE *chip, int subaddr)
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{
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unsigned char write[1];
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unsigned char read[1];
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struct i2c_msg msgs[2] = {
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{ chip->c.addr, 0, 1, write },
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{ chip->c.addr, I2C_M_RD, 1, read }
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};
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write[0] = subaddr;
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if (2 != i2c_transfer(chip->c.adapter,msgs,2)) {
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printk(KERN_WARNING "%s: I/O error (read2)\n", chip->c.name);
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return -1;
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}
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dprintk("%s: chip_read2: reg%d=0x%x\n",
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chip->c.name, subaddr, read[0]);
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return read[0];
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}
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static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
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{
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int i;
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if (0 == cmd->count)
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return 0;
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/* update our shadow register set; print bytes if (debug > 0) */
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dprintk("%s: chip_cmd(%s): reg=%d, data:",
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chip->c.name, name, cmd->bytes[0]);
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for (i = 1; i < cmd->count; i++) {
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dprintk(" 0x%x",cmd->bytes[i]);
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chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
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}
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dprintk("\n");
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/* send data to the chip */
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if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) {
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printk(KERN_WARNING "%s: I/O error (%s)\n", chip->c.name, name);
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return -1;
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}
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return 0;
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}
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/* ---------------------------------------------------------------------- */
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/* kernel thread for doing i2c stuff asyncronly
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* right now it is used only to check the audio mode (mono/stereo/whatever)
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* some time after switching to another TV channel, then turn on stereo
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* if available, ...
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*/
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static void chip_thread_wake(unsigned long data)
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{
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struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
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wake_up_interruptible(&chip->wq);
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}
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static int chip_thread(void *data)
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{
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DECLARE_WAITQUEUE(wait, current);
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struct CHIPSTATE *chip = data;
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struct CHIPDESC *desc = chiplist + chip->type;
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daemonize("%s", chip->c.name);
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allow_signal(SIGTERM);
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dprintk("%s: thread started\n", chip->c.name);
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for (;;) {
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add_wait_queue(&chip->wq, &wait);
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if (!chip->done) {
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set_current_state(TASK_INTERRUPTIBLE);
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schedule();
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}
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remove_wait_queue(&chip->wq, &wait);
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try_to_freeze();
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if (chip->done || signal_pending(current))
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break;
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dprintk("%s: thread wakeup\n", chip->c.name);
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/* don't do anything for radio or if mode != auto */
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if (chip->norm == VIDEO_MODE_RADIO || chip->mode != 0)
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continue;
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/* have a look what's going on */
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desc->checkmode(chip);
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/* schedule next check */
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mod_timer(&chip->wt, jiffies+2*HZ);
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}
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dprintk("%s: thread exiting\n", chip->c.name);
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complete_and_exit(&chip->texit, 0);
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return 0;
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}
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static void generic_checkmode(struct CHIPSTATE *chip)
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{
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struct CHIPDESC *desc = chiplist + chip->type;
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int mode = desc->getmode(chip);
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if (mode == chip->prevmode)
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return;
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dprintk("%s: thread checkmode\n", chip->c.name);
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chip->prevmode = mode;
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if (mode & VIDEO_SOUND_STEREO)
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desc->setmode(chip,VIDEO_SOUND_STEREO);
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else if (mode & VIDEO_SOUND_LANG1)
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desc->setmode(chip,VIDEO_SOUND_LANG1);
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else if (mode & VIDEO_SOUND_LANG2)
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desc->setmode(chip,VIDEO_SOUND_LANG2);
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else
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desc->setmode(chip,VIDEO_SOUND_MONO);
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}
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/* ---------------------------------------------------------------------- */
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/* audio chip descriptions - defines+functions for tda9840 */
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#define TDA9840_SW 0x00
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#define TDA9840_LVADJ 0x02
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#define TDA9840_STADJ 0x03
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#define TDA9840_TEST 0x04
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#define TDA9840_MONO 0x10
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#define TDA9840_STEREO 0x2a
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#define TDA9840_DUALA 0x12
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#define TDA9840_DUALB 0x1e
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#define TDA9840_DUALAB 0x1a
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#define TDA9840_DUALBA 0x16
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#define TDA9840_EXTERNAL 0x7a
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#define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
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#define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
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#define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
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#define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
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#define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
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static int tda9840_getmode(struct CHIPSTATE *chip)
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{
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int val, mode;
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val = chip_read(chip);
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mode = VIDEO_SOUND_MONO;
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if (val & TDA9840_DS_DUAL)
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mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
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if (val & TDA9840_ST_STEREO)
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mode |= VIDEO_SOUND_STEREO;
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dprintk ("tda9840_getmode(): raw chip read: %d, return: %d\n",
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val, mode);
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return mode;
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}
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static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
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{
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int update = 1;
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int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
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switch (mode) {
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case VIDEO_SOUND_MONO:
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t |= TDA9840_MONO;
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break;
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case VIDEO_SOUND_STEREO:
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t |= TDA9840_STEREO;
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break;
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case VIDEO_SOUND_LANG1:
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t |= TDA9840_DUALA;
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break;
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case VIDEO_SOUND_LANG2:
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t |= TDA9840_DUALB;
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break;
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default:
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update = 0;
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}
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if (update)
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chip_write(chip, TDA9840_SW, t);
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}
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/* ---------------------------------------------------------------------- */
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/* audio chip descriptions - defines+functions for tda985x */
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/* subaddresses for TDA9855 */
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#define TDA9855_VR 0x00 /* Volume, right */
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#define TDA9855_VL 0x01 /* Volume, left */
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#define TDA9855_BA 0x02 /* Bass */
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#define TDA9855_TR 0x03 /* Treble */
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#define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
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/* subaddresses for TDA9850 */
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#define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
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/* subaddesses for both chips */
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#define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
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#define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
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#define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
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#define TDA985x_A1 0x08 /* Alignment 1 for both chips */
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#define TDA985x_A2 0x09 /* Alignment 2 for both chips */
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#define TDA985x_A3 0x0a /* Alignment 3 for both chips */
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/* Masks for bits in TDA9855 subaddresses */
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/* 0x00 - VR in TDA9855 */
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/* 0x01 - VL in TDA9855 */
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/* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
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* in 1dB steps - mute is 0x27 */
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/* 0x02 - BA in TDA9855 */
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/* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
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* in .5dB steps - 0 is 0x0E */
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/* 0x03 - TR in TDA9855 */
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/* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
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* in 3dB steps - 0 is 0x7 */
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/* Masks for bits in both chips' subaddresses */
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/* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
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/* Unique to TDA9855: */
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/* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
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* in 3dB steps - mute is 0x0 */
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/* Unique to TDA9850: */
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/* lower 4 bits control stereo noise threshold, over which stereo turns off
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* set to values of 0x00 through 0x0f for Ster1 through Ster16 */
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/* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
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/* Unique to TDA9855: */
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#define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
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#define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
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#define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
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#define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
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/* Bits 0 to 3 select various combinations
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* of line in and line out, only the
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* interesting ones are defined */
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#define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
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#define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
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/* Unique to TDA9850: */
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/* lower 4 bits contol SAP noise threshold, over which SAP turns off
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* set to values of 0x00 through 0x0f for SAP1 through SAP16 */
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/* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
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/* Common to TDA9855 and TDA9850: */
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#define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
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#define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
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#define TDA985x_MONO 0 /* Forces Mono output */
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#define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
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/* Unique to TDA9855: */
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#define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
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#define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
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#define TDA9855_LINEAR 0 /* Linear Stereo */
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#define TDA9855_PSEUDO 1 /* Pseudo Stereo */
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#define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
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#define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
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#define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
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|
|
/* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
|
|
/* Common to both TDA9855 and TDA9850: */
|
|
/* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
|
|
* in .5dB steps - 0dB is 0x7 */
|
|
|
|
/* 0x08, 0x09 - A1 and A2 (read/write) */
|
|
/* Common to both TDA9855 and TDA9850: */
|
|
/* lower 5 bites are wideband and spectral expander alignment
|
|
* from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
|
|
#define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
|
|
#define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
|
|
#define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
|
|
|
|
/* 0x0a - A3 */
|
|
/* Common to both TDA9855 and TDA9850: */
|
|
/* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
|
|
* -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
|
|
#define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
|
|
|
|
static int tda9855_volume(int val) { return val/0x2e8+0x27; }
|
|
static int tda9855_bass(int val) { return val/0xccc+0x06; }
|
|
static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
|
|
|
|
static int tda985x_getmode(struct CHIPSTATE *chip)
|
|
{
|
|
int mode;
|
|
|
|
mode = ((TDA985x_STP | TDA985x_SAPP) &
|
|
chip_read(chip)) >> 4;
|
|
/* Add mono mode regardless of SAP and stereo */
|
|
/* Allows forced mono */
|
|
return mode | VIDEO_SOUND_MONO;
|
|
}
|
|
|
|
static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
|
|
{
|
|
int update = 1;
|
|
int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
|
|
|
|
switch (mode) {
|
|
case VIDEO_SOUND_MONO:
|
|
c6 |= TDA985x_MONO;
|
|
break;
|
|
case VIDEO_SOUND_STEREO:
|
|
c6 |= TDA985x_STEREO;
|
|
break;
|
|
case VIDEO_SOUND_LANG1:
|
|
c6 |= TDA985x_SAP;
|
|
break;
|
|
default:
|
|
update = 0;
|
|
}
|
|
if (update)
|
|
chip_write(chip,TDA985x_C6,c6);
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* audio chip descriptions - defines+functions for tda9873h */
|
|
|
|
/* Subaddresses for TDA9873H */
|
|
|
|
#define TDA9873_SW 0x00 /* Switching */
|
|
#define TDA9873_AD 0x01 /* Adjust */
|
|
#define TDA9873_PT 0x02 /* Port */
|
|
|
|
/* Subaddress 0x00: Switching Data
|
|
* B7..B0:
|
|
*
|
|
* B1, B0: Input source selection
|
|
* 0, 0 internal
|
|
* 1, 0 external stereo
|
|
* 0, 1 external mono
|
|
*/
|
|
#define TDA9873_INP_MASK 3
|
|
#define TDA9873_INTERNAL 0
|
|
#define TDA9873_EXT_STEREO 2
|
|
#define TDA9873_EXT_MONO 1
|
|
|
|
/* B3, B2: output signal select
|
|
* B4 : transmission mode
|
|
* 0, 0, 1 Mono
|
|
* 1, 0, 0 Stereo
|
|
* 1, 1, 1 Stereo (reversed channel)
|
|
* 0, 0, 0 Dual AB
|
|
* 0, 0, 1 Dual AA
|
|
* 0, 1, 0 Dual BB
|
|
* 0, 1, 1 Dual BA
|
|
*/
|
|
|
|
#define TDA9873_TR_MASK (7 << 2)
|
|
#define TDA9873_TR_MONO 4
|
|
#define TDA9873_TR_STEREO 1 << 4
|
|
#define TDA9873_TR_REVERSE (1 << 3) & (1 << 2)
|
|
#define TDA9873_TR_DUALA 1 << 2
|
|
#define TDA9873_TR_DUALB 1 << 3
|
|
|
|
/* output level controls
|
|
* B5: output level switch (0 = reduced gain, 1 = normal gain)
|
|
* B6: mute (1 = muted)
|
|
* B7: auto-mute (1 = auto-mute enabled)
|
|
*/
|
|
|
|
#define TDA9873_GAIN_NORMAL 1 << 5
|
|
#define TDA9873_MUTE 1 << 6
|
|
#define TDA9873_AUTOMUTE 1 << 7
|
|
|
|
/* Subaddress 0x01: Adjust/standard */
|
|
|
|
/* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
|
|
* Recommended value is +0 dB
|
|
*/
|
|
|
|
#define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
|
|
|
|
/* Bits C6..C4 control FM stantard
|
|
* C6, C5, C4
|
|
* 0, 0, 0 B/G (PAL FM)
|
|
* 0, 0, 1 M
|
|
* 0, 1, 0 D/K(1)
|
|
* 0, 1, 1 D/K(2)
|
|
* 1, 0, 0 D/K(3)
|
|
* 1, 0, 1 I
|
|
*/
|
|
#define TDA9873_BG 0
|
|
#define TDA9873_M 1
|
|
#define TDA9873_DK1 2
|
|
#define TDA9873_DK2 3
|
|
#define TDA9873_DK3 4
|
|
#define TDA9873_I 5
|
|
|
|
/* C7 controls identification response time (1=fast/0=normal)
|
|
*/
|
|
#define TDA9873_IDR_NORM 0
|
|
#define TDA9873_IDR_FAST 1 << 7
|
|
|
|
|
|
/* Subaddress 0x02: Port data */
|
|
|
|
/* E1, E0 free programmable ports P1/P2
|
|
0, 0 both ports low
|
|
0, 1 P1 high
|
|
1, 0 P2 high
|
|
1, 1 both ports high
|
|
*/
|
|
|
|
#define TDA9873_PORTS 3
|
|
|
|
/* E2: test port */
|
|
#define TDA9873_TST_PORT 1 << 2
|
|
|
|
/* E5..E3 control mono output channel (together with transmission mode bit B4)
|
|
*
|
|
* E5 E4 E3 B4 OUTM
|
|
* 0 0 0 0 mono
|
|
* 0 0 1 0 DUAL B
|
|
* 0 1 0 1 mono (from stereo decoder)
|
|
*/
|
|
#define TDA9873_MOUT_MONO 0
|
|
#define TDA9873_MOUT_FMONO 0
|
|
#define TDA9873_MOUT_DUALA 0
|
|
#define TDA9873_MOUT_DUALB 1 << 3
|
|
#define TDA9873_MOUT_ST 1 << 4
|
|
#define TDA9873_MOUT_EXTM (1 << 4 ) & (1 << 3)
|
|
#define TDA9873_MOUT_EXTL 1 << 5
|
|
#define TDA9873_MOUT_EXTR (1 << 5 ) & (1 << 3)
|
|
#define TDA9873_MOUT_EXTLR (1 << 5 ) & (1 << 4)
|
|
#define TDA9873_MOUT_MUTE (1 << 5 ) & (1 << 4) & (1 << 3)
|
|
|
|
/* Status bits: (chip read) */
|
|
#define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
|
|
#define TDA9873_STEREO 2 /* Stereo sound is identified */
|
|
#define TDA9873_DUAL 4 /* Dual sound is identified */
|
|
|
|
static int tda9873_getmode(struct CHIPSTATE *chip)
|
|
{
|
|
int val,mode;
|
|
|
|
val = chip_read(chip);
|
|
mode = VIDEO_SOUND_MONO;
|
|
if (val & TDA9873_STEREO)
|
|
mode |= VIDEO_SOUND_STEREO;
|
|
if (val & TDA9873_DUAL)
|
|
mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
|
|
dprintk ("tda9873_getmode(): raw chip read: %d, return: %d\n",
|
|
val, mode);
|
|
return mode;
|
|
}
|
|
|
|
static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
|
|
{
|
|
int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
|
|
/* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
|
|
|
|
if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
|
|
dprintk("tda9873_setmode(): external input\n");
|
|
return;
|
|
}
|
|
|
|
dprintk("tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
|
|
dprintk("tda9873_setmode(): sw_data = %d\n", sw_data);
|
|
|
|
switch (mode) {
|
|
case VIDEO_SOUND_MONO:
|
|
sw_data |= TDA9873_TR_MONO;
|
|
break;
|
|
case VIDEO_SOUND_STEREO:
|
|
sw_data |= TDA9873_TR_STEREO;
|
|
break;
|
|
case VIDEO_SOUND_LANG1:
|
|
sw_data |= TDA9873_TR_DUALA;
|
|
break;
|
|
case VIDEO_SOUND_LANG2:
|
|
sw_data |= TDA9873_TR_DUALB;
|
|
break;
|
|
default:
|
|
chip->mode = 0;
|
|
return;
|
|
}
|
|
|
|
chip_write(chip, TDA9873_SW, sw_data);
|
|
dprintk("tda9873_setmode(): req. mode %d; chip_write: %d\n",
|
|
mode, sw_data);
|
|
}
|
|
|
|
static int tda9873_checkit(struct CHIPSTATE *chip)
|
|
{
|
|
int rc;
|
|
|
|
if (-1 == (rc = chip_read2(chip,254)))
|
|
return 0;
|
|
return (rc & ~0x1f) == 0x80;
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* audio chip description - defines+functions for tda9874h and tda9874a */
|
|
/* Dariusz Kowalewski <darekk@automex.pl> */
|
|
|
|
/* Subaddresses for TDA9874H and TDA9874A (slave rx) */
|
|
#define TDA9874A_AGCGR 0x00 /* AGC gain */
|
|
#define TDA9874A_GCONR 0x01 /* general config */
|
|
#define TDA9874A_MSR 0x02 /* monitor select */
|
|
#define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
|
|
#define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
|
|
#define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
|
|
#define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
|
|
#define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
|
|
#define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
|
|
#define TDA9874A_DCR 0x09 /* demodulator config */
|
|
#define TDA9874A_FMER 0x0a /* FM de-emphasis */
|
|
#define TDA9874A_FMMR 0x0b /* FM dematrix */
|
|
#define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
|
|
#define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
|
|
#define TDA9874A_NCONR 0x0e /* NICAM config */
|
|
#define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
|
|
#define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
|
|
#define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
|
|
#define TDA9874A_AMCONR 0x12 /* audio mute control */
|
|
#define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
|
|
#define TDA9874A_AOSR 0x14 /* analog output select */
|
|
#define TDA9874A_DAICONR 0x15 /* digital audio interface config */
|
|
#define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
|
|
#define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
|
|
#define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
|
|
#define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
|
|
|
|
/* Subaddresses for TDA9874H and TDA9874A (slave tx) */
|
|
#define TDA9874A_DSR 0x00 /* device status */
|
|
#define TDA9874A_NSR 0x01 /* NICAM status */
|
|
#define TDA9874A_NECR 0x02 /* NICAM error count */
|
|
#define TDA9874A_DR1 0x03 /* add. data LSB */
|
|
#define TDA9874A_DR2 0x04 /* add. data MSB */
|
|
#define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
|
|
#define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
|
|
#define TDA9874A_SIFLR 0x07 /* SIF level */
|
|
#define TDA9874A_TR2 252 /* test reg. 2 */
|
|
#define TDA9874A_TR1 253 /* test reg. 1 */
|
|
#define TDA9874A_DIC 254 /* device id. code */
|
|
#define TDA9874A_SIC 255 /* software id. code */
|
|
|
|
|
|
static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
|
|
static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
|
|
static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
|
|
static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
|
|
static int tda9874a_dic = -1; /* device id. code */
|
|
|
|
/* insmod options for tda9874a */
|
|
static unsigned int tda9874a_SIF = UNSET;
|
|
static unsigned int tda9874a_AMSEL = UNSET;
|
|
static unsigned int tda9874a_STD = UNSET;
|
|
module_param(tda9874a_SIF, int, 0444);
|
|
module_param(tda9874a_AMSEL, int, 0444);
|
|
module_param(tda9874a_STD, int, 0444);
|
|
|
|
/*
|
|
* initialization table for tda9874 decoder:
|
|
* - carrier 1 freq. registers (3 bytes)
|
|
* - carrier 2 freq. registers (3 bytes)
|
|
* - demudulator config register
|
|
* - FM de-emphasis register (slow identification mode)
|
|
* Note: frequency registers must be written in single i2c transfer.
|
|
*/
|
|
static struct tda9874a_MODES {
|
|
char *name;
|
|
audiocmd cmd;
|
|
} tda9874a_modelist[9] = {
|
|
{ "A2, B/G",
|
|
{ 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
|
|
{ "A2, M (Korea)",
|
|
{ 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
|
|
{ "A2, D/K (1)",
|
|
{ 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
|
|
{ "A2, D/K (2)",
|
|
{ 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
|
|
{ "A2, D/K (3)",
|
|
{ 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
|
|
{ "NICAM, I",
|
|
{ 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
|
|
{ "NICAM, B/G",
|
|
{ 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
|
|
{ "NICAM, D/K", /* default */
|
|
{ 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
|
|
{ "NICAM, L",
|
|
{ 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
|
|
};
|
|
|
|
static int tda9874a_setup(struct CHIPSTATE *chip)
|
|
{
|
|
chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
|
|
chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
|
|
chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
|
|
if(tda9874a_dic == 0x11) {
|
|
chip_write(chip, TDA9874A_FMMR, 0x80);
|
|
} else { /* dic == 0x07 */
|
|
chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
|
|
chip_write(chip, TDA9874A_FMMR, 0x00);
|
|
}
|
|
chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
|
|
chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
|
|
chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
|
|
chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
|
|
/* Note: If signal quality is poor you may want to change NICAM */
|
|
/* error limit registers (NLELR and NUELR) to some greater values. */
|
|
/* Then the sound would remain stereo, but won't be so clear. */
|
|
chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
|
|
chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
|
|
|
|
if(tda9874a_dic == 0x11) {
|
|
chip_write(chip, TDA9874A_AMCONR, 0xf9);
|
|
chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
|
|
chip_write(chip, TDA9874A_AOSR, 0x80);
|
|
chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
|
|
chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
|
|
} else { /* dic == 0x07 */
|
|
chip_write(chip, TDA9874A_AMCONR, 0xfb);
|
|
chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
|
|
chip_write(chip, TDA9874A_AOSR, 0x00); // or 0x10
|
|
}
|
|
dprintk("tda9874a_setup(): %s [0x%02X].\n",
|
|
tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
|
|
return 1;
|
|
}
|
|
|
|
static int tda9874a_getmode(struct CHIPSTATE *chip)
|
|
{
|
|
int dsr,nsr,mode;
|
|
int necr; /* just for debugging */
|
|
|
|
mode = VIDEO_SOUND_MONO;
|
|
|
|
if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
|
|
return mode;
|
|
if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
|
|
return mode;
|
|
if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
|
|
return mode;
|
|
|
|
/* need to store dsr/nsr somewhere */
|
|
chip->shadow.bytes[MAXREGS-2] = dsr;
|
|
chip->shadow.bytes[MAXREGS-1] = nsr;
|
|
|
|
if(tda9874a_mode) {
|
|
/* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
|
|
* If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
|
|
* that sound has (temporarily) switched from NICAM to
|
|
* mono FM (or AM) on 1st sound carrier due to high NICAM bit
|
|
* error count. So in fact there is no stereo in this case :-(
|
|
* But changing the mode to VIDEO_SOUND_MONO would switch
|
|
* external 4052 multiplexer in audio_hook().
|
|
*/
|
|
if(nsr & 0x02) /* NSR.S/MB=1 */
|
|
mode |= VIDEO_SOUND_STEREO;
|
|
if(nsr & 0x01) /* NSR.D/SB=1 */
|
|
mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
|
|
} else {
|
|
if(dsr & 0x02) /* DSR.IDSTE=1 */
|
|
mode |= VIDEO_SOUND_STEREO;
|
|
if(dsr & 0x04) /* DSR.IDDUA=1 */
|
|
mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
|
|
}
|
|
|
|
dprintk("tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
|
|
dsr, nsr, necr, mode);
|
|
return mode;
|
|
}
|
|
|
|
static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
|
|
{
|
|
/* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
|
|
/* If auto-muting is disabled, we can hear a signal of degrading quality. */
|
|
if(tda9874a_mode) {
|
|
if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
|
|
tda9874a_NCONR &= 0xfe; /* enable */
|
|
else
|
|
tda9874a_NCONR |= 0x01; /* disable */
|
|
chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
|
|
}
|
|
|
|
/* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
|
|
* and has auto-select function for audio output (AOSR register).
|
|
* Old TDA9874H doesn't support these features.
|
|
* TDA9874A also has additional mono output pin (OUTM), which
|
|
* on same (all?) tv-cards is not used, anyway (as well as MONOIN).
|
|
*/
|
|
if(tda9874a_dic == 0x11) {
|
|
int aosr = 0x80;
|
|
int mdacosr = (tda9874a_mode) ? 0x82:0x80;
|
|
|
|
switch(mode) {
|
|
case VIDEO_SOUND_MONO:
|
|
case VIDEO_SOUND_STEREO:
|
|
break;
|
|
case VIDEO_SOUND_LANG1:
|
|
aosr = 0x80; /* auto-select, dual A/A */
|
|
mdacosr = (tda9874a_mode) ? 0x82:0x80;
|
|
break;
|
|
case VIDEO_SOUND_LANG2:
|
|
aosr = 0xa0; /* auto-select, dual B/B */
|
|
mdacosr = (tda9874a_mode) ? 0x83:0x81;
|
|
break;
|
|
default:
|
|
chip->mode = 0;
|
|
return;
|
|
}
|
|
chip_write(chip, TDA9874A_AOSR, aosr);
|
|
chip_write(chip, TDA9874A_MDACOSR, mdacosr);
|
|
|
|
dprintk("tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
|
|
mode, aosr, mdacosr);
|
|
|
|
} else { /* dic == 0x07 */
|
|
int fmmr,aosr;
|
|
|
|
switch(mode) {
|
|
case VIDEO_SOUND_MONO:
|
|
fmmr = 0x00; /* mono */
|
|
aosr = 0x10; /* A/A */
|
|
break;
|
|
case VIDEO_SOUND_STEREO:
|
|
if(tda9874a_mode) {
|
|
fmmr = 0x00;
|
|
aosr = 0x00; /* handled by NICAM auto-mute */
|
|
} else {
|
|
fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
|
|
aosr = 0x00;
|
|
}
|
|
break;
|
|
case VIDEO_SOUND_LANG1:
|
|
fmmr = 0x02; /* dual */
|
|
aosr = 0x10; /* dual A/A */
|
|
break;
|
|
case VIDEO_SOUND_LANG2:
|
|
fmmr = 0x02; /* dual */
|
|
aosr = 0x20; /* dual B/B */
|
|
break;
|
|
default:
|
|
chip->mode = 0;
|
|
return;
|
|
}
|
|
chip_write(chip, TDA9874A_FMMR, fmmr);
|
|
chip_write(chip, TDA9874A_AOSR, aosr);
|
|
|
|
dprintk("tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
|
|
mode, fmmr, aosr);
|
|
}
|
|
}
|
|
|
|
static int tda9874a_checkit(struct CHIPSTATE *chip)
|
|
{
|
|
int dic,sic; /* device id. and software id. codes */
|
|
|
|
if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
|
|
return 0;
|
|
if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
|
|
return 0;
|
|
|
|
dprintk("tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
|
|
|
|
if((dic == 0x11)||(dic == 0x07)) {
|
|
printk("tvaudio: found tda9874%s.\n", (dic == 0x11) ? "a":"h");
|
|
tda9874a_dic = dic; /* remember device id. */
|
|
return 1;
|
|
}
|
|
return 0; /* not found */
|
|
}
|
|
|
|
static int tda9874a_initialize(struct CHIPSTATE *chip)
|
|
{
|
|
if (tda9874a_SIF > 2)
|
|
tda9874a_SIF = 1;
|
|
if (tda9874a_STD > 8)
|
|
tda9874a_STD = 0;
|
|
if(tda9874a_AMSEL > 1)
|
|
tda9874a_AMSEL = 0;
|
|
|
|
if(tda9874a_SIF == 1)
|
|
tda9874a_GCONR = 0xc0; /* sound IF input 1 */
|
|
else
|
|
tda9874a_GCONR = 0xc1; /* sound IF input 2 */
|
|
|
|
tda9874a_ESP = tda9874a_STD;
|
|
tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
|
|
|
|
if(tda9874a_AMSEL == 0)
|
|
tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
|
|
else
|
|
tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
|
|
|
|
tda9874a_setup(chip);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* audio chip descriptions - defines+functions for tea6420 */
|
|
|
|
#define TEA6300_VL 0x00 /* volume left */
|
|
#define TEA6300_VR 0x01 /* volume right */
|
|
#define TEA6300_BA 0x02 /* bass */
|
|
#define TEA6300_TR 0x03 /* treble */
|
|
#define TEA6300_FA 0x04 /* fader control */
|
|
#define TEA6300_S 0x05 /* switch register */
|
|
/* values for those registers: */
|
|
#define TEA6300_S_SA 0x01 /* stereo A input */
|
|
#define TEA6300_S_SB 0x02 /* stereo B */
|
|
#define TEA6300_S_SC 0x04 /* stereo C */
|
|
#define TEA6300_S_GMU 0x80 /* general mute */
|
|
|
|
#define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
|
|
#define TEA6320_FFR 0x01 /* fader front right (0-5) */
|
|
#define TEA6320_FFL 0x02 /* fader front left (0-5) */
|
|
#define TEA6320_FRR 0x03 /* fader rear right (0-5) */
|
|
#define TEA6320_FRL 0x04 /* fader rear left (0-5) */
|
|
#define TEA6320_BA 0x05 /* bass (0-4) */
|
|
#define TEA6320_TR 0x06 /* treble (0-4) */
|
|
#define TEA6320_S 0x07 /* switch register */
|
|
/* values for those registers: */
|
|
#define TEA6320_S_SA 0x07 /* stereo A input */
|
|
#define TEA6320_S_SB 0x06 /* stereo B */
|
|
#define TEA6320_S_SC 0x05 /* stereo C */
|
|
#define TEA6320_S_SD 0x04 /* stereo D */
|
|
#define TEA6320_S_GMU 0x80 /* general mute */
|
|
|
|
#define TEA6420_S_SA 0x00 /* stereo A input */
|
|
#define TEA6420_S_SB 0x01 /* stereo B */
|
|
#define TEA6420_S_SC 0x02 /* stereo C */
|
|
#define TEA6420_S_SD 0x03 /* stereo D */
|
|
#define TEA6420_S_SE 0x04 /* stereo E */
|
|
#define TEA6420_S_GMU 0x05 /* general mute */
|
|
|
|
static int tea6300_shift10(int val) { return val >> 10; }
|
|
static int tea6300_shift12(int val) { return val >> 12; }
|
|
|
|
/* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
|
|
/* 0x0c mirror those immediately higher) */
|
|
static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
|
|
static int tea6320_shift11(int val) { return val >> 11; }
|
|
static int tea6320_initialize(struct CHIPSTATE * chip)
|
|
{
|
|
chip_write(chip, TEA6320_FFR, 0x3f);
|
|
chip_write(chip, TEA6320_FFL, 0x3f);
|
|
chip_write(chip, TEA6320_FRR, 0x3f);
|
|
chip_write(chip, TEA6320_FRL, 0x3f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* audio chip descriptions - defines+functions for tda8425 */
|
|
|
|
#define TDA8425_VL 0x00 /* volume left */
|
|
#define TDA8425_VR 0x01 /* volume right */
|
|
#define TDA8425_BA 0x02 /* bass */
|
|
#define TDA8425_TR 0x03 /* treble */
|
|
#define TDA8425_S1 0x08 /* switch functions */
|
|
/* values for those registers: */
|
|
#define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
|
|
#define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
|
|
#define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
|
|
#define TDA8425_S1_MU 0x20 /* mute bit */
|
|
#define TDA8425_S1_STEREO 0x18 /* stereo bits */
|
|
#define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
|
|
#define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
|
|
#define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
|
|
#define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
|
|
#define TDA8425_S1_ML 0x06 /* language selector */
|
|
#define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
|
|
#define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
|
|
#define TDA8425_S1_ML_STEREO 0x06 /* stereo */
|
|
#define TDA8425_S1_IS 0x01 /* channel selector */
|
|
|
|
|
|
static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
|
|
static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
|
|
|
|
static int tda8425_initialize(struct CHIPSTATE *chip)
|
|
{
|
|
struct CHIPDESC *desc = chiplist + chip->type;
|
|
int inputmap[8] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1,
|
|
/* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF,
|
|
/* off */ TDA8425_S1_OFF, /* on */ TDA8425_S1_CH2};
|
|
|
|
if (chip->c.adapter->id == I2C_HW_B_RIVA) {
|
|
memcpy (desc->inputmap, inputmap, sizeof (inputmap));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
|
|
{
|
|
int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
|
|
|
|
if (mode & VIDEO_SOUND_LANG1) {
|
|
s1 |= TDA8425_S1_ML_SOUND_A;
|
|
s1 |= TDA8425_S1_STEREO_PSEUDO;
|
|
|
|
} else if (mode & VIDEO_SOUND_LANG2) {
|
|
s1 |= TDA8425_S1_ML_SOUND_B;
|
|
s1 |= TDA8425_S1_STEREO_PSEUDO;
|
|
|
|
} else {
|
|
s1 |= TDA8425_S1_ML_STEREO;
|
|
|
|
if (mode & VIDEO_SOUND_MONO)
|
|
s1 |= TDA8425_S1_STEREO_MONO;
|
|
if (mode & VIDEO_SOUND_STEREO)
|
|
s1 |= TDA8425_S1_STEREO_SPATIAL;
|
|
}
|
|
chip_write(chip,TDA8425_S1,s1);
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* audio chip descriptions - defines+functions for pic16c54 (PV951) */
|
|
|
|
/* the registers of 16C54, I2C sub address. */
|
|
#define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
|
|
#define PIC16C54_REG_MISC 0x02
|
|
|
|
/* bit definition of the RESET register, I2C data. */
|
|
#define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
|
|
/* code of remote controller */
|
|
#define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
|
|
#define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
|
|
#define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
|
|
#define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
|
|
#define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
|
|
#define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
|
|
#define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* audio chip descriptions - defines+functions for TA8874Z */
|
|
|
|
// write 1st byte
|
|
#define TA8874Z_LED_STE 0x80
|
|
#define TA8874Z_LED_BIL 0x40
|
|
#define TA8874Z_LED_EXT 0x20
|
|
#define TA8874Z_MONO_SET 0x10
|
|
#define TA8874Z_MUTE 0x08
|
|
#define TA8874Z_F_MONO 0x04
|
|
#define TA8874Z_MODE_SUB 0x02
|
|
#define TA8874Z_MODE_MAIN 0x01
|
|
|
|
// write 2nd byte
|
|
//#define TA8874Z_TI 0x80 // test mode
|
|
#define TA8874Z_SEPARATION 0x3f
|
|
#define TA8874Z_SEPARATION_DEFAULT 0x10
|
|
|
|
// read
|
|
#define TA8874Z_B1 0x80
|
|
#define TA8874Z_B0 0x40
|
|
#define TA8874Z_CHAG_FLAG 0x20
|
|
|
|
// B1 B0
|
|
// mono L H
|
|
// stereo L L
|
|
// BIL H L
|
|
|
|
static int ta8874z_getmode(struct CHIPSTATE *chip)
|
|
{
|
|
int val, mode;
|
|
|
|
val = chip_read(chip);
|
|
mode = VIDEO_SOUND_MONO;
|
|
if (val & TA8874Z_B1){
|
|
mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
|
|
}else if (!(val & TA8874Z_B0)){
|
|
mode |= VIDEO_SOUND_STEREO;
|
|
}
|
|
//dprintk ("ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode);
|
|
return mode;
|
|
}
|
|
|
|
static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
|
|
static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
|
|
static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
|
|
static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
|
|
|
|
static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
|
|
{
|
|
int update = 1;
|
|
audiocmd *t = NULL;
|
|
dprintk("ta8874z_setmode(): mode: 0x%02x\n", mode);
|
|
|
|
switch(mode){
|
|
case VIDEO_SOUND_MONO:
|
|
t = &ta8874z_mono;
|
|
break;
|
|
case VIDEO_SOUND_STEREO:
|
|
t = &ta8874z_stereo;
|
|
break;
|
|
case VIDEO_SOUND_LANG1:
|
|
t = &ta8874z_main;
|
|
break;
|
|
case VIDEO_SOUND_LANG2:
|
|
t = &ta8874z_sub;
|
|
break;
|
|
default:
|
|
update = 0;
|
|
}
|
|
|
|
if(update)
|
|
chip_cmd(chip, "TA8874Z", t);
|
|
}
|
|
|
|
static int ta8874z_checkit(struct CHIPSTATE *chip)
|
|
{
|
|
int rc;
|
|
rc = chip_read(chip);
|
|
return ((rc & 0x1f) == 0x1f) ? 1 : 0;
|
|
}
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* audio chip descriptions - struct CHIPDESC */
|
|
|
|
/* insmod options to enable/disable individual audio chips */
|
|
static int tda8425 = 1;
|
|
static int tda9840 = 1;
|
|
static int tda9850 = 1;
|
|
static int tda9855 = 1;
|
|
static int tda9873 = 1;
|
|
static int tda9874a = 1;
|
|
static int tea6300 = 0; // address clash with msp34xx
|
|
static int tea6320 = 0; // address clash with msp34xx
|
|
static int tea6420 = 1;
|
|
static int pic16c54 = 1;
|
|
static int ta8874z = 0; // address clash with tda9840
|
|
|
|
module_param(tda8425, int, 0444);
|
|
module_param(tda9840, int, 0444);
|
|
module_param(tda9850, int, 0444);
|
|
module_param(tda9855, int, 0444);
|
|
module_param(tda9873, int, 0444);
|
|
module_param(tda9874a, int, 0444);
|
|
module_param(tea6300, int, 0444);
|
|
module_param(tea6320, int, 0444);
|
|
module_param(tea6420, int, 0444);
|
|
module_param(pic16c54, int, 0444);
|
|
module_param(ta8874z, int, 0444);
|
|
|
|
static struct CHIPDESC chiplist[] = {
|
|
{
|
|
.name = "tda9840",
|
|
.id = I2C_DRIVERID_TDA9840,
|
|
.insmodopt = &tda9840,
|
|
.addr_lo = I2C_TDA9840 >> 1,
|
|
.addr_hi = I2C_TDA9840 >> 1,
|
|
.registers = 5,
|
|
|
|
.getmode = tda9840_getmode,
|
|
.setmode = tda9840_setmode,
|
|
.checkmode = generic_checkmode,
|
|
|
|
.init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
|
|
/* ,TDA9840_SW, TDA9840_MONO */} }
|
|
},
|
|
{
|
|
.name = "tda9873h",
|
|
.id = I2C_DRIVERID_TDA9873,
|
|
.checkit = tda9873_checkit,
|
|
.insmodopt = &tda9873,
|
|
.addr_lo = I2C_TDA985x_L >> 1,
|
|
.addr_hi = I2C_TDA985x_H >> 1,
|
|
.registers = 3,
|
|
.flags = CHIP_HAS_INPUTSEL,
|
|
|
|
.getmode = tda9873_getmode,
|
|
.setmode = tda9873_setmode,
|
|
.checkmode = generic_checkmode,
|
|
|
|
.init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
|
|
.inputreg = TDA9873_SW,
|
|
.inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
|
|
.inputmap = {0xa0, 0xa2, 0xa0, 0xa0, 0xc0},
|
|
.inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
|
|
|
|
},
|
|
{
|
|
.name = "tda9874h/a",
|
|
.id = I2C_DRIVERID_TDA9874,
|
|
.checkit = tda9874a_checkit,
|
|
.initialize = tda9874a_initialize,
|
|
.insmodopt = &tda9874a,
|
|
.addr_lo = I2C_TDA9874 >> 1,
|
|
.addr_hi = I2C_TDA9874 >> 1,
|
|
|
|
.getmode = tda9874a_getmode,
|
|
.setmode = tda9874a_setmode,
|
|
.checkmode = generic_checkmode,
|
|
},
|
|
{
|
|
.name = "tda9850",
|
|
.id = I2C_DRIVERID_TDA9850,
|
|
.insmodopt = &tda9850,
|
|
.addr_lo = I2C_TDA985x_L >> 1,
|
|
.addr_hi = I2C_TDA985x_H >> 1,
|
|
.registers = 11,
|
|
|
|
.getmode = tda985x_getmode,
|
|
.setmode = tda985x_setmode,
|
|
|
|
.init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
|
|
},
|
|
{
|
|
.name = "tda9855",
|
|
.id = I2C_DRIVERID_TDA9855,
|
|
.insmodopt = &tda9855,
|
|
.addr_lo = I2C_TDA985x_L >> 1,
|
|
.addr_hi = I2C_TDA985x_H >> 1,
|
|
.registers = 11,
|
|
.flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
|
|
|
|
.leftreg = TDA9855_VL,
|
|
.rightreg = TDA9855_VR,
|
|
.bassreg = TDA9855_BA,
|
|
.treblereg = TDA9855_TR,
|
|
.volfunc = tda9855_volume,
|
|
.bassfunc = tda9855_bass,
|
|
.treblefunc = tda9855_treble,
|
|
|
|
.getmode = tda985x_getmode,
|
|
.setmode = tda985x_setmode,
|
|
|
|
.init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
|
|
TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
|
|
TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
|
|
0x07, 0x10, 0x10, 0x03 }}
|
|
},
|
|
{
|
|
.name = "tea6300",
|
|
.id = I2C_DRIVERID_TEA6300,
|
|
.insmodopt = &tea6300,
|
|
.addr_lo = I2C_TEA6300 >> 1,
|
|
.addr_hi = I2C_TEA6300 >> 1,
|
|
.registers = 6,
|
|
.flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
|
|
|
|
.leftreg = TEA6300_VR,
|
|
.rightreg = TEA6300_VL,
|
|
.bassreg = TEA6300_BA,
|
|
.treblereg = TEA6300_TR,
|
|
.volfunc = tea6300_shift10,
|
|
.bassfunc = tea6300_shift12,
|
|
.treblefunc = tea6300_shift12,
|
|
|
|
.inputreg = TEA6300_S,
|
|
.inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
|
|
.inputmute = TEA6300_S_GMU,
|
|
},
|
|
{
|
|
.name = "tea6320",
|
|
.id = I2C_DRIVERID_TEA6300,
|
|
.initialize = tea6320_initialize,
|
|
.insmodopt = &tea6320,
|
|
.addr_lo = I2C_TEA6300 >> 1,
|
|
.addr_hi = I2C_TEA6300 >> 1,
|
|
.registers = 8,
|
|
.flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
|
|
|
|
.leftreg = TEA6320_V,
|
|
.rightreg = TEA6320_V,
|
|
.bassreg = TEA6320_BA,
|
|
.treblereg = TEA6320_TR,
|
|
.volfunc = tea6320_volume,
|
|
.bassfunc = tea6320_shift11,
|
|
.treblefunc = tea6320_shift11,
|
|
|
|
.inputreg = TEA6320_S,
|
|
.inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
|
|
.inputmute = TEA6300_S_GMU,
|
|
},
|
|
{
|
|
.name = "tea6420",
|
|
.id = I2C_DRIVERID_TEA6420,
|
|
.insmodopt = &tea6420,
|
|
.addr_lo = I2C_TEA6420 >> 1,
|
|
.addr_hi = I2C_TEA6420 >> 1,
|
|
.registers = 1,
|
|
.flags = CHIP_HAS_INPUTSEL,
|
|
|
|
.inputreg = -1,
|
|
.inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
|
|
.inputmute = TEA6300_S_GMU,
|
|
},
|
|
{
|
|
.name = "tda8425",
|
|
.id = I2C_DRIVERID_TDA8425,
|
|
.insmodopt = &tda8425,
|
|
.addr_lo = I2C_TDA8425 >> 1,
|
|
.addr_hi = I2C_TDA8425 >> 1,
|
|
.registers = 9,
|
|
.flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
|
|
|
|
.leftreg = TDA8425_VL,
|
|
.rightreg = TDA8425_VR,
|
|
.bassreg = TDA8425_BA,
|
|
.treblereg = TDA8425_TR,
|
|
.volfunc = tda8425_shift10,
|
|
.bassfunc = tda8425_shift12,
|
|
.treblefunc = tda8425_shift12,
|
|
|
|
.inputreg = TDA8425_S1,
|
|
.inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
|
|
.inputmute = TDA8425_S1_OFF,
|
|
|
|
.setmode = tda8425_setmode,
|
|
.initialize = tda8425_initialize,
|
|
},
|
|
{
|
|
.name = "pic16c54 (PV951)",
|
|
.id = I2C_DRIVERID_PIC16C54_PV951,
|
|
.insmodopt = &pic16c54,
|
|
.addr_lo = I2C_PIC16C54 >> 1,
|
|
.addr_hi = I2C_PIC16C54>> 1,
|
|
.registers = 2,
|
|
.flags = CHIP_HAS_INPUTSEL,
|
|
|
|
.inputreg = PIC16C54_REG_MISC,
|
|
.inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
|
|
PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
|
|
PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
|
|
PIC16C54_MISC_SND_MUTE,PIC16C54_MISC_SND_MUTE,
|
|
PIC16C54_MISC_SND_NOTMUTE},
|
|
.inputmute = PIC16C54_MISC_SND_MUTE,
|
|
},
|
|
{
|
|
.name = "ta8874z",
|
|
.id = -1,
|
|
//.id = I2C_DRIVERID_TA8874Z,
|
|
.checkit = ta8874z_checkit,
|
|
.insmodopt = &ta8874z,
|
|
.addr_lo = I2C_TDA9840 >> 1,
|
|
.addr_hi = I2C_TDA9840 >> 1,
|
|
.registers = 2,
|
|
|
|
.getmode = ta8874z_getmode,
|
|
.setmode = ta8874z_setmode,
|
|
.checkmode = generic_checkmode,
|
|
|
|
.init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
|
|
},
|
|
{ .name = NULL } /* EOF */
|
|
};
|
|
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* i2c registration */
|
|
|
|
static int chip_attach(struct i2c_adapter *adap, int addr, int kind)
|
|
{
|
|
struct CHIPSTATE *chip;
|
|
struct CHIPDESC *desc;
|
|
|
|
chip = kmalloc(sizeof(*chip),GFP_KERNEL);
|
|
if (!chip)
|
|
return -ENOMEM;
|
|
memset(chip,0,sizeof(*chip));
|
|
memcpy(&chip->c,&client_template,sizeof(struct i2c_client));
|
|
chip->c.adapter = adap;
|
|
chip->c.addr = addr;
|
|
i2c_set_clientdata(&chip->c, chip);
|
|
|
|
/* find description for the chip */
|
|
dprintk("tvaudio: chip found @ i2c-addr=0x%x\n", addr<<1);
|
|
for (desc = chiplist; desc->name != NULL; desc++) {
|
|
if (0 == *(desc->insmodopt))
|
|
continue;
|
|
if (addr < desc->addr_lo ||
|
|
addr > desc->addr_hi)
|
|
continue;
|
|
if (desc->checkit && !desc->checkit(chip))
|
|
continue;
|
|
break;
|
|
}
|
|
if (desc->name == NULL) {
|
|
dprintk("tvaudio: no matching chip description found\n");
|
|
return -EIO;
|
|
}
|
|
printk("tvaudio: found %s @ 0x%x\n", desc->name, addr<<1);
|
|
dprintk("tvaudio: matches:%s%s%s.\n",
|
|
(desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
|
|
(desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
|
|
(desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
|
|
|
|
/* fill required data structures */
|
|
strcpy(chip->c.name, desc->name);
|
|
chip->type = desc-chiplist;
|
|
chip->shadow.count = desc->registers+1;
|
|
chip->prevmode = -1;
|
|
/* register */
|
|
i2c_attach_client(&chip->c);
|
|
|
|
/* initialization */
|
|
if (desc->initialize != NULL)
|
|
desc->initialize(chip);
|
|
else
|
|
chip_cmd(chip,"init",&desc->init);
|
|
|
|
if (desc->flags & CHIP_HAS_VOLUME) {
|
|
chip->left = desc->leftinit ? desc->leftinit : 65535;
|
|
chip->right = desc->rightinit ? desc->rightinit : 65535;
|
|
chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
|
|
chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
|
|
}
|
|
if (desc->flags & CHIP_HAS_BASSTREBLE) {
|
|
chip->treble = desc->trebleinit ? desc->trebleinit : 32768;
|
|
chip->bass = desc->bassinit ? desc->bassinit : 32768;
|
|
chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
|
|
chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
|
|
}
|
|
|
|
chip->tpid = -1;
|
|
if (desc->checkmode) {
|
|
/* start async thread */
|
|
init_timer(&chip->wt);
|
|
chip->wt.function = chip_thread_wake;
|
|
chip->wt.data = (unsigned long)chip;
|
|
init_waitqueue_head(&chip->wq);
|
|
init_completion(&chip->texit);
|
|
chip->tpid = kernel_thread(chip_thread,(void *)chip,0);
|
|
if (chip->tpid < 0)
|
|
printk(KERN_WARNING "%s: kernel_thread() failed\n",
|
|
chip->c.name);
|
|
wake_up_interruptible(&chip->wq);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int chip_probe(struct i2c_adapter *adap)
|
|
{
|
|
/* don't attach on saa7146 based cards,
|
|
because dedicated drivers are used */
|
|
if (adap->id == I2C_HW_SAA7146)
|
|
return 0;
|
|
#ifdef I2C_CLASS_TV_ANALOG
|
|
if (adap->class & I2C_CLASS_TV_ANALOG)
|
|
return i2c_probe(adap, &addr_data, chip_attach);
|
|
#else
|
|
switch (adap->id) {
|
|
case I2C_HW_B_BT848:
|
|
case I2C_HW_B_RIVA:
|
|
case I2C_HW_SAA7134:
|
|
return i2c_probe(adap, &addr_data, chip_attach);
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int chip_detach(struct i2c_client *client)
|
|
{
|
|
struct CHIPSTATE *chip = i2c_get_clientdata(client);
|
|
|
|
del_timer_sync(&chip->wt);
|
|
if (chip->tpid >= 0) {
|
|
/* shutdown async thread */
|
|
chip->done = 1;
|
|
wake_up_interruptible(&chip->wq);
|
|
wait_for_completion(&chip->texit);
|
|
}
|
|
|
|
i2c_detach_client(&chip->c);
|
|
kfree(chip);
|
|
return 0;
|
|
}
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* video4linux interface */
|
|
|
|
static int chip_command(struct i2c_client *client,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
__u16 *sarg = arg;
|
|
struct CHIPSTATE *chip = i2c_get_clientdata(client);
|
|
struct CHIPDESC *desc = chiplist + chip->type;
|
|
|
|
dprintk("%s: chip_command 0x%x\n", chip->c.name, cmd);
|
|
|
|
switch (cmd) {
|
|
case AUDC_SET_INPUT:
|
|
if (desc->flags & CHIP_HAS_INPUTSEL) {
|
|
if (*sarg & 0x80)
|
|
chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
|
|
else
|
|
chip_write_masked(chip,desc->inputreg,desc->inputmap[*sarg],desc->inputmask);
|
|
}
|
|
break;
|
|
|
|
case AUDC_SET_RADIO:
|
|
dprintk(KERN_DEBUG "tvaudio: AUDC_SET_RADIO\n");
|
|
chip->norm = VIDEO_MODE_RADIO;
|
|
chip->watch_stereo = 0;
|
|
/* del_timer(&chip->wt); */
|
|
break;
|
|
|
|
/* --- v4l ioctls --- */
|
|
/* take care: bttv does userspace copying, we'll get a
|
|
kernel pointer here... */
|
|
case VIDIOCGAUDIO:
|
|
{
|
|
struct video_audio *va = arg;
|
|
|
|
if (desc->flags & CHIP_HAS_VOLUME) {
|
|
va->flags |= VIDEO_AUDIO_VOLUME;
|
|
va->volume = max(chip->left,chip->right);
|
|
if (va->volume)
|
|
va->balance = (32768*min(chip->left,chip->right))/
|
|
va->volume;
|
|
else
|
|
va->balance = 32768;
|
|
}
|
|
if (desc->flags & CHIP_HAS_BASSTREBLE) {
|
|
va->flags |= VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE;
|
|
va->bass = chip->bass;
|
|
va->treble = chip->treble;
|
|
}
|
|
if (chip->norm != VIDEO_MODE_RADIO) {
|
|
if (desc->getmode)
|
|
va->mode = desc->getmode(chip);
|
|
else
|
|
va->mode = VIDEO_SOUND_MONO;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VIDIOCSAUDIO:
|
|
{
|
|
struct video_audio *va = arg;
|
|
|
|
if (desc->flags & CHIP_HAS_VOLUME) {
|
|
chip->left = (min(65536 - va->balance,32768) *
|
|
va->volume) / 32768;
|
|
chip->right = (min(va->balance,(__u16)32768) *
|
|
va->volume) / 32768;
|
|
chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
|
|
chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
|
|
}
|
|
if (desc->flags & CHIP_HAS_BASSTREBLE) {
|
|
chip->bass = va->bass;
|
|
chip->treble = va->treble;
|
|
chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
|
|
chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
|
|
}
|
|
if (desc->setmode && va->mode) {
|
|
chip->watch_stereo = 0;
|
|
/* del_timer(&chip->wt); */
|
|
chip->mode = va->mode;
|
|
desc->setmode(chip,va->mode);
|
|
}
|
|
break;
|
|
}
|
|
case VIDIOCSCHAN:
|
|
{
|
|
struct video_channel *vc = arg;
|
|
|
|
dprintk(KERN_DEBUG "tvaudio: VIDIOCSCHAN\n");
|
|
chip->norm = vc->norm;
|
|
break;
|
|
}
|
|
case VIDIOCSFREQ:
|
|
{
|
|
chip->mode = 0; /* automatic */
|
|
if (desc->checkmode) {
|
|
desc->setmode(chip,VIDEO_SOUND_MONO);
|
|
if (chip->prevmode != VIDEO_SOUND_MONO)
|
|
chip->prevmode = -1; /* reset previous mode */
|
|
mod_timer(&chip->wt, jiffies+2*HZ);
|
|
/* the thread will call checkmode() later */
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static struct i2c_driver driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "generic i2c audio driver",
|
|
.id = I2C_DRIVERID_TVAUDIO,
|
|
.flags = I2C_DF_NOTIFY,
|
|
.attach_adapter = chip_probe,
|
|
.detach_client = chip_detach,
|
|
.command = chip_command,
|
|
};
|
|
|
|
static struct i2c_client client_template =
|
|
{
|
|
.name = "(unset)",
|
|
.flags = I2C_CLIENT_ALLOW_USE,
|
|
.driver = &driver,
|
|
};
|
|
|
|
static int __init audiochip_init_module(void)
|
|
{
|
|
struct CHIPDESC *desc;
|
|
printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
|
|
printk(KERN_INFO "tvaudio: known chips: ");
|
|
for (desc = chiplist; desc->name != NULL; desc++)
|
|
printk("%s%s", (desc == chiplist) ? "" : ",",desc->name);
|
|
printk("\n");
|
|
|
|
return i2c_add_driver(&driver);
|
|
}
|
|
|
|
static void __exit audiochip_cleanup_module(void)
|
|
{
|
|
i2c_del_driver(&driver);
|
|
}
|
|
|
|
module_init(audiochip_init_module);
|
|
module_exit(audiochip_cleanup_module);
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|