Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
new file mode 100644
index 0000000..065eb40
--- /dev/null
+++ b/drivers/media/video/tvaudio.c
@@ -0,0 +1,1740 @@
+/*
+ * experimental driver for simple i2c audio chips.
+ *
+ * Copyright (c) 2000 Gerd Knorr
+ * based on code by:
+ * Eric Sandeen (eric_sandeen@bigfoot.com)
+ * Steve VanDeBogart (vandebo@uclink.berkeley.edu)
+ * Greg Alexander (galexand@acm.org)
+ *
+ * This code is placed under the terms of the GNU General Public License
+ *
+ * OPTIONS:
+ * debug - set to 1 if you'd like to see debug messages
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/videodev.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+
+#include <media/audiochip.h>
+#include <media/id.h>
+
+#include "tvaudio.h"
+
+/* ---------------------------------------------------------------------- */
+/* insmod args */
+
+static int debug = 0; /* insmod parameter */
+module_param(debug, int, 0644);
+
+MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
+MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
+MODULE_LICENSE("GPL");
+
+#define UNSET (-1U)
+#define dprintk if (debug) printk
+
+/* ---------------------------------------------------------------------- */
+/* our structs */
+
+#define MAXREGS 64
+
+struct CHIPSTATE;
+typedef int (*getvalue)(int);
+typedef int (*checkit)(struct CHIPSTATE*);
+typedef int (*initialize)(struct CHIPSTATE*);
+typedef int (*getmode)(struct CHIPSTATE*);
+typedef void (*setmode)(struct CHIPSTATE*, int mode);
+typedef void (*checkmode)(struct CHIPSTATE*);
+
+/* i2c command */
+typedef struct AUDIOCMD {
+ int count; /* # of bytes to send */
+ unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */
+} audiocmd;
+
+/* chip description */
+struct CHIPDESC {
+ char *name; /* chip name */
+ int id; /* ID */
+ int addr_lo, addr_hi; /* i2c address range */
+ int registers; /* # of registers */
+
+ int *insmodopt;
+ checkit checkit;
+ initialize initialize;
+ int flags;
+#define CHIP_HAS_VOLUME 1
+#define CHIP_HAS_BASSTREBLE 2
+#define CHIP_HAS_INPUTSEL 4
+
+ /* various i2c command sequences */
+ audiocmd init;
+
+ /* which register has which value */
+ int leftreg,rightreg,treblereg,bassreg;
+
+ /* initialize with (defaults to 65535/65535/32768/32768 */
+ int leftinit,rightinit,trebleinit,bassinit;
+
+ /* functions to convert the values (v4l -> chip) */
+ getvalue volfunc,treblefunc,bassfunc;
+
+ /* get/set mode */
+ getmode getmode;
+ setmode setmode;
+
+ /* check / autoswitch audio after channel switches */
+ checkmode checkmode;
+
+ /* input switch register + values for v4l inputs */
+ int inputreg;
+ int inputmap[8];
+ int inputmute;
+ int inputmask;
+};
+static struct CHIPDESC chiplist[];
+
+/* current state of the chip */
+struct CHIPSTATE {
+ struct i2c_client c;
+
+ /* index into CHIPDESC array */
+ int type;
+
+ /* shadow register set */
+ audiocmd shadow;
+
+ /* current settings */
+ __u16 left,right,treble,bass,mode;
+ int prevmode;
+ int norm;
+
+ /* thread */
+ pid_t tpid;
+ struct completion texit;
+ wait_queue_head_t wq;
+ struct timer_list wt;
+ int done;
+ int watch_stereo;
+};
+
+#define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */
+
+/* ---------------------------------------------------------------------- */
+/* i2c addresses */
+
+static unsigned short normal_i2c[] = {
+ I2C_TDA8425 >> 1,
+ I2C_TEA6300 >> 1,
+ I2C_TEA6420 >> 1,
+ I2C_TDA9840 >> 1,
+ I2C_TDA985x_L >> 1,
+ I2C_TDA985x_H >> 1,
+ I2C_TDA9874 >> 1,
+ I2C_PIC16C54 >> 1,
+ I2C_CLIENT_END };
+static unsigned short normal_i2c_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+I2C_CLIENT_INSMOD;
+
+static struct i2c_driver driver;
+static struct i2c_client client_template;
+
+
+/* ---------------------------------------------------------------------- */
+/* i2c I/O functions */
+
+static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
+{
+ unsigned char buffer[2];
+
+ if (-1 == subaddr) {
+ dprintk("%s: chip_write: 0x%x\n",
+ i2c_clientname(&chip->c), val);
+ chip->shadow.bytes[1] = val;
+ buffer[0] = val;
+ if (1 != i2c_master_send(&chip->c,buffer,1)) {
+ printk(KERN_WARNING "%s: I/O error (write 0x%x)\n",
+ i2c_clientname(&chip->c), val);
+ return -1;
+ }
+ } else {
+ dprintk("%s: chip_write: reg%d=0x%x\n",
+ i2c_clientname(&chip->c), subaddr, val);
+ chip->shadow.bytes[subaddr+1] = val;
+ buffer[0] = subaddr;
+ buffer[1] = val;
+ if (2 != i2c_master_send(&chip->c,buffer,2)) {
+ printk(KERN_WARNING "%s: I/O error (write reg%d=0x%x)\n",
+ i2c_clientname(&chip->c), subaddr, val);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask)
+{
+ if (mask != 0) {
+ if (-1 == subaddr) {
+ val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
+ } else {
+ val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
+ }
+ }
+ return chip_write(chip, subaddr, val);
+}
+
+static int chip_read(struct CHIPSTATE *chip)
+{
+ unsigned char buffer;
+
+ if (1 != i2c_master_recv(&chip->c,&buffer,1)) {
+ printk(KERN_WARNING "%s: I/O error (read)\n",
+ i2c_clientname(&chip->c));
+ return -1;
+ }
+ dprintk("%s: chip_read: 0x%x\n",i2c_clientname(&chip->c),buffer);
+ return buffer;
+}
+
+static int chip_read2(struct CHIPSTATE *chip, int subaddr)
+{
+ unsigned char write[1];
+ unsigned char read[1];
+ struct i2c_msg msgs[2] = {
+ { chip->c.addr, 0, 1, write },
+ { chip->c.addr, I2C_M_RD, 1, read }
+ };
+ write[0] = subaddr;
+
+ if (2 != i2c_transfer(chip->c.adapter,msgs,2)) {
+ printk(KERN_WARNING "%s: I/O error (read2)\n",
+ i2c_clientname(&chip->c));
+ return -1;
+ }
+ dprintk("%s: chip_read2: reg%d=0x%x\n",
+ i2c_clientname(&chip->c),subaddr,read[0]);
+ return read[0];
+}
+
+static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
+{
+ int i;
+
+ if (0 == cmd->count)
+ return 0;
+
+ /* update our shadow register set; print bytes if (debug > 0) */
+ dprintk("%s: chip_cmd(%s): reg=%d, data:",
+ i2c_clientname(&chip->c),name,cmd->bytes[0]);
+ for (i = 1; i < cmd->count; i++) {
+ dprintk(" 0x%x",cmd->bytes[i]);
+ chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
+ }
+ dprintk("\n");
+
+ /* send data to the chip */
+ if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) {
+ printk(KERN_WARNING "%s: I/O error (%s)\n", i2c_clientname(&chip->c), name);
+ return -1;
+ }
+ return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+/* kernel thread for doing i2c stuff asyncronly
+ * right now it is used only to check the audio mode (mono/stereo/whatever)
+ * some time after switching to another TV channel, then turn on stereo
+ * if available, ...
+ */
+
+static void chip_thread_wake(unsigned long data)
+{
+ struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
+ wake_up_interruptible(&chip->wq);
+}
+
+static int chip_thread(void *data)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ struct CHIPSTATE *chip = data;
+ struct CHIPDESC *desc = chiplist + chip->type;
+
+ daemonize("%s",i2c_clientname(&chip->c));
+ allow_signal(SIGTERM);
+ dprintk("%s: thread started\n", i2c_clientname(&chip->c));
+
+ for (;;) {
+ add_wait_queue(&chip->wq, &wait);
+ if (!chip->done) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule();
+ }
+ remove_wait_queue(&chip->wq, &wait);
+ try_to_freeze(PF_FREEZE);
+ if (chip->done || signal_pending(current))
+ break;
+ dprintk("%s: thread wakeup\n", i2c_clientname(&chip->c));
+
+ /* don't do anything for radio or if mode != auto */
+ if (chip->norm == VIDEO_MODE_RADIO || chip->mode != 0)
+ continue;
+
+ /* have a look what's going on */
+ desc->checkmode(chip);
+
+ /* schedule next check */
+ mod_timer(&chip->wt, jiffies+2*HZ);
+ }
+
+ dprintk("%s: thread exiting\n", i2c_clientname(&chip->c));
+ complete_and_exit(&chip->texit, 0);
+ return 0;
+}
+
+static void generic_checkmode(struct CHIPSTATE *chip)
+{
+ struct CHIPDESC *desc = chiplist + chip->type;
+ int mode = desc->getmode(chip);
+
+ if (mode == chip->prevmode)
+ return;
+
+ dprintk("%s: thread checkmode\n", i2c_clientname(&chip->c));
+ chip->prevmode = mode;
+
+ if (mode & VIDEO_SOUND_STEREO)
+ desc->setmode(chip,VIDEO_SOUND_STEREO);
+ else if (mode & VIDEO_SOUND_LANG1)
+ desc->setmode(chip,VIDEO_SOUND_LANG1);
+ else if (mode & VIDEO_SOUND_LANG2)
+ desc->setmode(chip,VIDEO_SOUND_LANG2);
+ else
+ desc->setmode(chip,VIDEO_SOUND_MONO);
+}
+
+/* ---------------------------------------------------------------------- */
+/* audio chip descriptions - defines+functions for tda9840 */
+
+#define TDA9840_SW 0x00
+#define TDA9840_LVADJ 0x02
+#define TDA9840_STADJ 0x03
+#define TDA9840_TEST 0x04
+
+#define TDA9840_MONO 0x10
+#define TDA9840_STEREO 0x2a
+#define TDA9840_DUALA 0x12
+#define TDA9840_DUALB 0x1e
+#define TDA9840_DUALAB 0x1a
+#define TDA9840_DUALBA 0x16
+#define TDA9840_EXTERNAL 0x7a
+
+#define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
+#define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
+#define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
+
+#define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
+#define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
+
+static int tda9840_getmode(struct CHIPSTATE *chip)
+{
+ int val, mode;
+
+ val = chip_read(chip);
+ mode = VIDEO_SOUND_MONO;
+ if (val & TDA9840_DS_DUAL)
+ mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
+ if (val & TDA9840_ST_STEREO)
+ mode |= VIDEO_SOUND_STEREO;
+
+ dprintk ("tda9840_getmode(): raw chip read: %d, return: %d\n",
+ val, mode);
+ return mode;
+}
+
+static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
+{
+ int update = 1;
+ int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
+
+ switch (mode) {
+ case VIDEO_SOUND_MONO:
+ t |= TDA9840_MONO;
+ break;
+ case VIDEO_SOUND_STEREO:
+ t |= TDA9840_STEREO;
+ break;
+ case VIDEO_SOUND_LANG1:
+ t |= TDA9840_DUALA;
+ break;
+ case VIDEO_SOUND_LANG2:
+ t |= TDA9840_DUALB;
+ break;
+ default:
+ update = 0;
+ }
+
+ if (update)
+ chip_write(chip, TDA9840_SW, t);
+}
+
+/* ---------------------------------------------------------------------- */
+/* audio chip descriptions - defines+functions for tda985x */
+
+/* subaddresses for TDA9855 */
+#define TDA9855_VR 0x00 /* Volume, right */
+#define TDA9855_VL 0x01 /* Volume, left */
+#define TDA9855_BA 0x02 /* Bass */
+#define TDA9855_TR 0x03 /* Treble */
+#define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
+
+/* subaddresses for TDA9850 */
+#define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
+
+/* subaddesses for both chips */
+#define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
+#define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
+#define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
+#define TDA985x_A1 0x08 /* Alignment 1 for both chips */
+#define TDA985x_A2 0x09 /* Alignment 2 for both chips */
+#define TDA985x_A3 0x0a /* Alignment 3 for both chips */
+
+/* Masks for bits in TDA9855 subaddresses */
+/* 0x00 - VR in TDA9855 */
+/* 0x01 - VL in TDA9855 */
+/* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
+ * in 1dB steps - mute is 0x27 */
+
+
+/* 0x02 - BA in TDA9855 */
+/* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
+ * in .5dB steps - 0 is 0x0E */
+
+
+/* 0x03 - TR in TDA9855 */
+/* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
+ * in 3dB steps - 0 is 0x7 */
+
+/* Masks for bits in both chips' subaddresses */
+/* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
+/* Unique to TDA9855: */
+/* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
+ * in 3dB steps - mute is 0x0 */
+
+/* Unique to TDA9850: */
+/* lower 4 bits control stereo noise threshold, over which stereo turns off
+ * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
+
+
+/* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
+/* Unique to TDA9855: */
+#define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
+#define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
+#define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
+#define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
+ /* Bits 0 to 3 select various combinations
+ * of line in and line out, only the
+ * interesting ones are defined */
+#define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
+#define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
+
+/* Unique to TDA9850: */
+/* lower 4 bits contol SAP noise threshold, over which SAP turns off
+ * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
+
+
+/* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
+/* Common to TDA9855 and TDA9850: */
+#define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
+#define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
+#define TDA985x_MONO 0 /* Forces Mono output */
+#define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
+
+/* Unique to TDA9855: */
+#define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
+#define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
+#define TDA9855_LINEAR 0 /* Linear Stereo */
+#define TDA9855_PSEUDO 1 /* Pseudo Stereo */
+#define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
+#define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
+#define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
+
+/* 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 0
+ if((nsr & 0x02) && !(dsr & 0x10)) /* NSR.S/MB=1 and DSR.AMSTAT=0 */
+ mode |= VIDEO_SOUND_STEREO;
+#else
+ if(nsr & 0x02) /* NSR.S/MB=1 */
+ mode |= VIDEO_SOUND_STEREO;
+#endif
+ 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_ALGO_BIT | 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 */
+int tda8425 = 1;
+int tda9840 = 1;
+int tda9850 = 1;
+int tda9855 = 1;
+int tda9873 = 1;
+int tda9874a = 1;
+int tea6300 = 0; // address clash with msp34xx
+int tea6320 = 0; // address clash with msp34xx
+int tea6420 = 1;
+int pic16c54 = 1;
+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(i2c_clientname(&chip->c),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",
+ i2c_clientname(&chip->c));
+ 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_ALGO_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_ALGO_BIT | I2C_HW_B_BT848:
+ case I2C_ALGO_BIT | I2C_HW_B_RIVA:
+ case I2C_ALGO_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",i2c_clientname(&chip->c),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 =
+{
+ I2C_DEVNAME("(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:
+ */