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/*
* programming the msp34* sound processor family
*
* (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
*
* what works and what doesn't:
*
* AM-Mono
* Support for Hauppauge cards added (decoding handled by tuner) added by
* Frederic Crozat <fcrozat@mail.dotcom.fr>
*
* FM-Mono
* should work. The stereo modes are backward compatible to FM-mono,
* therefore FM-Mono should be allways available.
*
* FM-Stereo (B/G, used in germany)
* should work, with autodetect
*
* FM-Stereo (satellite)
* should work, no autodetect (i.e. default is mono, but you can
* switch to stereo -- untested)
*
* NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
* should work, with autodetect. Support for NICAM was added by
* Pekka Pietikainen <pp@netppl.fi>
*
*
* TODO:
* - better SAT support
*
*
* 980623 Thomas Sailer (sailer@ife.ee.ethz.ch)
* using soundcore instead of OSS
*
*/
#include <linux/config.h>
#include <linux/module.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/i2c.h>
#include <linux/videodev.h>
#include <asm/semaphore.h>
#include <linux/init.h>
#ifdef CONFIG_SMP
#include <asm/pgtable.h>
#include <linux/smp_lock.h>
#endif
/* kernel_thread */
#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
#include "audiochip.h"
#include "msp3400.h"
/* Addresses to scan */
static unsigned short normal_i2c[] = {I2C_CLIENT_END};
static unsigned short normal_i2c_range[] = {0x40,0x40,I2C_CLIENT_END};
static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
static unsigned short force[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
static struct i2c_client_address_data addr_data = {
normal_i2c, normal_i2c_range,
probe, probe_range,
ignore, ignore_range,
force
};
/* insmod parameters */
static int debug = 0; /* debug output */
static int once = 0; /* no continous stereo monitoring */
static int amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
the autoscan seems work well only with FM... */
static int simple = -1; /* use short programming (>= msp3410 only) */
static int dolby = 0;
#define DFP_COUNT 0x41
static const int bl_dfp[] = {
0x00, 0x01, 0x02, 0x03, 0x06, 0x08, 0x09, 0x0a,
0x0b, 0x0d, 0x0e, 0x10
};
struct msp3400c {
int simple;
int nicam;
int mode;
int norm;
int stereo;
int nicam_on;
int acb;
int main, second; /* sound carrier */
int muted;
int left, right; /* volume */
int bass, treble;
/* shadow register set */
int dfp_regs[DFP_COUNT];
/* thread */
struct task_struct *thread;
wait_queue_head_t wq;
struct semaphore *notify;
int active,restart,rmmod;
int watch_stereo;
struct timer_list wake_stereo;
};
#define MSP3400_MAX 4
static struct i2c_client *msps[MSP3400_MAX];
#define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */
/* ---------------------------------------------------------------------- */
#define dprintk if (debug) printk
MODULE_PARM(once,"i");
MODULE_PARM(debug,"i");
MODULE_PARM(simple,"i");
MODULE_PARM(amsound,"i");
MODULE_PARM(dolby,"i");
MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("GPL");
/* ---------------------------------------------------------------------- */
#define I2C_MSP3400C 0x80
#define I2C_MSP3400C_DEM 0x10
#define I2C_MSP3400C_DFP 0x12
/* ----------------------------------------------------------------------- */
/* functions for talking to the MSP3400C Sound processor */
static int msp3400c_reset(struct i2c_client *client)
{
static char reset_off[3] = { 0x00, 0x80, 0x00 };
static char reset_on[3] = { 0x00, 0x00, 0x00 };
i2c_master_send(client,reset_off,3); /* XXX ignore errors here */
if (3 != i2c_master_send(client,reset_on, 3)) {
printk(KERN_ERR "msp3400: chip reset failed, penguin on i2c bus?\n");
return -1;
}
return 0;
}
static int
msp3400c_read(struct i2c_client *client, int dev, int addr)
{
int err;
unsigned char write[3];
unsigned char read[2];
struct i2c_msg msgs[2] = {
{ client->addr, 0, 3, write },
{ client->addr, I2C_M_RD, 2, read }
};
write[0] = dev+1;
write[1] = addr >> 8;
write[2] = addr & 0xff;
for (err = 0; err < 3;) {
if (2 == i2c_transfer(client->adapter,msgs,2))
break;
err++;
printk(KERN_WARNING "msp34xx: I/O error #%d (read 0x%02x/0x%02x)\n",
err, dev, addr);
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ/10);
}
if (3 == err) {
printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
msp3400c_reset(client);
return -1;
}
return read[0] << 8 | read[1];
}
static int
msp3400c_write(struct i2c_client *client, int dev, int addr, int val)
{
int err;
unsigned char buffer[5];
buffer[0] = dev;
buffer[1] = addr >> 8;
buffer[2] = addr & 0xff;
buffer[3] = val >> 8;
buffer[4] = val & 0xff;
for (err = 0; err < 3;) {
if (5 == i2c_master_send(client, buffer, 5))
break;
err++;
printk(KERN_WARNING "msp34xx: I/O error #%d (write 0x%02x/0x%02x)\n",
err, dev, addr);
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ/10);
}
if (3 == err) {
printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
msp3400c_reset(client);
return -1;
}
return 0;
}
/* ------------------------------------------------------------------------ */
/* This macro is allowed for *constants* only, gcc must calculate it
at compile time. Remember -- no floats in kernel mode */
#define MSP_CARRIER(freq) ((int)((float)(freq/18.432)*(1<<24)))
#define MSP_MODE_AM_DETECT 0
#define MSP_MODE_FM_RADIO 2
#define MSP_MODE_FM_TERRA 3
#define MSP_MODE_FM_SAT 4
#define MSP_MODE_FM_NICAM1 5
#define MSP_MODE_FM_NICAM2 6
#define MSP_MODE_AM_NICAM 7
#define MSP_MODE_BTSC 8
#define MSP_MODE_EXTERN 9
static struct MSP_INIT_DATA_DEM {
int fir1[6];
int fir2[6];
int cdo1;
int cdo2;
int ad_cv;
int mode_reg;
int dfp_src;
int dfp_matrix;
} msp_init_data[] = {
/* AM (for carrier detect / msp3400) */
{ { 75, 19, 36, 35, 39, 40 }, { 75, 19, 36, 35, 39, 40 },
MSP_CARRIER(5.5), MSP_CARRIER(5.5),
0x00d0, 0x0500, 0x0020, 0x3000},
/* AM (for carrier detect / msp3410) */
{ { -1, -1, -8, 2, 59, 126 }, { -1, -1, -8, 2, 59, 126 },
MSP_CARRIER(5.5), MSP_CARRIER(5.5),
0x00d0, 0x0100, 0x0020, 0x3000},
/* FM Radio */
{ { -8, -8, 4, 6, 78, 107 }, { -8, -8, 4, 6, 78, 107 },
MSP_CARRIER(10.7), MSP_CARRIER(10.7),
0x00d0, 0x0480, 0x0020, 0x3000 },
/* Terrestial FM-mono + FM-stereo */
{ { 3, 18, 27, 48, 66, 72 }, { 3, 18, 27, 48, 66, 72 },
MSP_CARRIER(5.5), MSP_CARRIER(5.5),
0x00d0, 0x0480, 0x0030, 0x3000},
/* Sat FM-mono */
{ { 1, 9, 14, 24, 33, 37 }, { 3, 18, 27, 48, 66, 72 },
MSP_CARRIER(6.5), MSP_CARRIER(6.5),
0x00c6, 0x0480, 0x0000, 0x3000},
/* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
{ { -2, -8, -10, 10, 50, 86 }, { 3, 18, 27, 48, 66, 72 },
MSP_CARRIER(5.5), MSP_CARRIER(5.5),
0x00d0, 0x0040, 0x0120, 0x3000},
/* NICAM/FM -- I (6.0/6.552) */
{ { 2, 4, -6, -4, 40, 94 }, { 3, 18, 27, 48, 66, 72 },
MSP_CARRIER(6.0), MSP_CARRIER(6.0),
0x00d0, 0x0040, 0x0120, 0x3000},
/* NICAM/AM -- L (6.5/5.85) */
{ { -2, -8, -10, 10, 50, 86 }, { -4, -12, -9, 23, 79, 126 },
MSP_CARRIER(6.5), MSP_CARRIER(6.5),
0x00c6, 0x0140, 0x0120, 0x7c03},
};
struct CARRIER_DETECT {
int cdo;
char *name;
};
static struct CARRIER_DETECT carrier_detect_main[] = {
/* main carrier */
{ MSP_CARRIER(4.5), "4.5 NTSC" },
{ MSP_CARRIER(5.5), "5.5 PAL B/G" },
{ MSP_CARRIER(6.0), "6.0 PAL I" },
{ MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
};
static struct CARRIER_DETECT carrier_detect_55[] = {
/* PAL B/G */
{ MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
{ MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
};
static struct CARRIER_DETECT carrier_detect_65[] = {
/* PAL SAT / SECAM */
{ MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
{ MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
{ MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
{ MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
{ MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
{ MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
};
#define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))
/* ----------------------------------------------------------------------- */
#define SCART_MASK 0
#define SCART_IN1 1
#define SCART_IN2 2
#define SCART_IN1_DA 3
#define SCART_IN2_DA 4
#define SCART_IN3 5
#define SCART_IN4 6
#define SCART_MONO 7
#define SCART_MUTE 8
static int scarts[3][9] = {
/* MASK IN1 IN2 IN1_DA IN2_DA IN3 IN4 MONO MUTE */
{ 0x0320, 0x0000, 0x0200, -1, -1, 0x0300, 0x0020, 0x0100, 0x0320 },
{ 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
{ 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
};
static char *scart_names[] = {
"mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
};
static void
msp3400c_set_scart(struct i2c_client *client, int in, int out)
{
struct msp3400c *msp = client->data;
if (-1 == scarts[out][in])
return;
dprintk("msp34xx: scart switch: %s => %d\n",scart_names[in],out);
msp->acb &= ~scarts[out][SCART_MASK];
msp->acb |= scarts[out][in];
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, msp->acb);
}
/* ------------------------------------------------------------------------ */
static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
{
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff);
msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12);
msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff);
msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12);
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
}
static void msp3400c_setvolume(struct i2c_client *client,
int muted, int left, int right)
{
int vol = 0,val = 0,balance = 0;
if (!muted) {
vol = (left > right) ? left : right;
val = (vol * 0x73 / 65535) << 8;
}
if (vol > 0) {
balance = ((right-left) * 127) / vol;
}
dprintk("msp34xx: setvolume: mute=%s %d:%d v=0x%02x b=0x%02x\n",
muted ? "on" : "off", left, right, val>>8, balance);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones */
/* scart - on/off only */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, val ? 0x4000 : 0);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, balance << 8);
}
static void msp3400c_setbass(struct i2c_client *client, int bass)
{
int val = ((bass-32768) * 0x60 / 65535) << 8;
dprintk("msp34xx: setbass: %d 0x%02x\n",bass, val>>8);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
}
static void msp3400c_settreble(struct i2c_client *client, int treble)
{
int val = ((treble-32768) * 0x60 / 65535) << 8;
dprintk("msp34xx: settreble: %d 0x%02x\n",treble, val>>8);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
}
static void msp3400c_setmode(struct i2c_client *client, int type)
{
struct msp3400c *msp = client->data;
int i;
dprintk("msp3400: setmode: %d\n",type);
msp->mode = type;
msp->stereo = VIDEO_SOUND_MONO;
msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb, /* ad_cv */
msp_init_data[type].ad_cv);
for (i = 5; i >= 0; i--) /* fir 1 */
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
msp_init_data[type].fir1[i]);
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
for (i = 5; i >= 0; i--)
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
msp_init_data[type].fir2[i]);
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083, /* MODE_REG */
msp_init_data[type].mode_reg);
msp3400c_setcarrier(client, msp_init_data[type].cdo1,
msp_init_data[type].cdo2);
msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
if (dolby) {
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
0x0520); /* I2S1 */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
0x0620); /* I2S2 */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
msp_init_data[type].dfp_src);
} else {
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
msp_init_data[type].dfp_src);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
msp_init_data[type].dfp_src);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
msp_init_data[type].dfp_src);
}
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
msp_init_data[type].dfp_src);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
msp_init_data[type].dfp_matrix);
if (msp->nicam) {
/* nicam prescale */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
}
}
/* turn on/off nicam + stereo */
static void msp3400c_setstereo(struct i2c_client *client, int mode)
{
struct msp3400c *msp = client->data;
int nicam=0; /* channel source: FM/AM or nicam */
int src=0;
/* switch demodulator */
switch (msp->mode) {
case MSP_MODE_FM_TERRA:
dprintk("msp3400: FM setstereo: %d\n",mode);
msp3400c_setcarrier(client,msp->second,msp->main);
switch (mode) {
case VIDEO_SOUND_STEREO:
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
break;
case VIDEO_SOUND_MONO:
case VIDEO_SOUND_LANG1:
case VIDEO_SOUND_LANG2:
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
break;
}
break;
case MSP_MODE_FM_SAT:
dprintk("msp3400: SAT setstereo: %d\n",mode);
switch (mode) {
case VIDEO_SOUND_MONO:
msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
break;
case VIDEO_SOUND_STEREO:
msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
break;
case VIDEO_SOUND_LANG1:
msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
case VIDEO_SOUND_LANG2:
msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
}
break;
case MSP_MODE_FM_NICAM1:
case MSP_MODE_FM_NICAM2:
case MSP_MODE_AM_NICAM:
dprintk("msp3400: NICAM setstereo: %d\n",mode);
msp3400c_setcarrier(client,msp->second,msp->main);
if (msp->nicam_on)
nicam=0x0100;
break;
case MSP_MODE_BTSC:
dprintk("msp3400: BTSC setstereo: %d\n",mode);
nicam=0x0300;
break;
case MSP_MODE_EXTERN:
dprintk("msp3400: extern setstereo: %d\n", mode);
nicam = 0x0200;
break;
case MSP_MODE_FM_RADIO:
dprintk("msp3400: FM-Radio setstereo: %d\n", mode);
break;
default:
dprintk("msp3400: mono setstereo\n");
return;
}
/* switch audio */
switch (mode) {
case VIDEO_SOUND_STEREO:
src = 0x0020 | nicam;
#if 0
/* spatial effect */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
#endif
break;
case VIDEO_SOUND_MONO:
if (msp->mode == MSP_MODE_AM_NICAM) {
dprintk("msp3400: switching to AM mono\n");
/* AM mono decoding is handled by tuner, not MSP chip */
/* SCART switching control register */
msp3400c_set_scart(client,SCART_MONO,0);
src = 0x0200;
break;
}
case VIDEO_SOUND_LANG1:
src = 0x0000 | nicam;
break;
case VIDEO_SOUND_LANG2:
src = 0x0010 | nicam;
break;
}
dprintk("msp3400: setstereo final source/matrix = 0x%x\n", src);
if (dolby) {
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
} else {
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
}
}
static void
msp3400c_print_mode(struct msp3400c *msp)
{
if (msp->main == msp->second) {
printk("msp3400: mono sound carrier: %d.%03d MHz\n",
msp->main/910000,(msp->main/910)%1000);
} else {
printk("msp3400: main sound carrier: %d.%03d MHz\n",
msp->main/910000,(msp->main/910)%1000);
}
if (msp->mode == MSP_MODE_FM_NICAM1 ||
msp->mode == MSP_MODE_FM_NICAM2)
printk("msp3400: NICAM/FM carrier : %d.%03d MHz\n",
msp->second/910000,(msp->second/910)%1000);
if (msp->mode == MSP_MODE_AM_NICAM)
printk("msp3400: NICAM/AM carrier : %d.%03d MHz\n",
msp->second/910000,(msp->second/910)%1000);
if (msp->mode == MSP_MODE_FM_TERRA &&
msp->main != msp->second) {
printk("msp3400: FM-stereo carrier : %d.%03d MHz\n",
msp->second/910000,(msp->second/910)%1000);
}
}
static void
msp3400c_restore_dfp(struct i2c_client *client)
{
struct msp3400c *msp = client->data;
int i;
for (i = 0; i < DFP_COUNT; i++) {
if (-1 == msp->dfp_regs[i])
continue;
msp3400c_write(client,I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);
}
}
/* ----------------------------------------------------------------------- */
struct REGISTER_DUMP {
int addr;
char *name;
};
struct REGISTER_DUMP d1[] = {
{ 0x007e, "autodetect" },
{ 0x0023, "C_AD_BITS " },
{ 0x0038, "ADD_BITS " },
{ 0x003e, "CIB_BITS " },
{ 0x0057, "ERROR_RATE" },
};
static int
autodetect_stereo(struct i2c_client *client)
{
struct msp3400c *msp = client->data;
int val;
int newstereo = msp->stereo;
int newnicam = msp->nicam_on;
int update = 0;
switch (msp->mode) {
case MSP_MODE_FM_TERRA:
val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
if (val > 32768)
val -= 65536;
dprintk("msp34xx: stereo detect register: %d\n",val);
if (val > 4096) {
newstereo = VIDEO_SOUND_STEREO | VIDEO_SOUND_MONO;
} else if (val < -4096) {
newstereo = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
} else {
newstereo = VIDEO_SOUND_MONO;
}
newnicam = 0;
break;
case MSP_MODE_FM_NICAM1:
case MSP_MODE_FM_NICAM2:
case MSP_MODE_AM_NICAM:
val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
dprintk("msp34xx: nicam sync=%d, mode=%d\n",val & 1, (val & 0x1e) >> 1);
if (val & 1) {
/* nicam synced */
switch ((val & 0x1e) >> 1) {
case 0:
case 8:
newstereo = VIDEO_SOUND_STEREO;
break;
case 1:
case 9:
newstereo = VIDEO_SOUND_MONO
| VIDEO_SOUND_LANG1;
break;
case 2:
case 10:
newstereo = VIDEO_SOUND_MONO
| VIDEO_SOUND_LANG1
| VIDEO_SOUND_LANG2;
break;
default:
newstereo = VIDEO_SOUND_MONO;
break;
}
newnicam=1;
} else {
newnicam = 0;
newstereo = VIDEO_SOUND_MONO;
}
break;
case MSP_MODE_BTSC:
val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
dprintk("msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
val,
(val & 0x0002) ? "no" : "yes",
(val & 0x0004) ? "no" : "yes",
(val & 0x0040) ? "stereo" : "mono",
(val & 0x0080) ? ", nicam 2nd mono" : "",
(val & 0x0100) ? ", bilingual/SAP" : "");
newstereo = VIDEO_SOUND_MONO;
if (val & 0x0040) newstereo |= VIDEO_SOUND_STEREO;
if (val & 0x0100) newstereo |= VIDEO_SOUND_LANG1;
break;
}
if (newstereo != msp->stereo) {
update = 1;
dprintk("msp34xx: watch: stereo %d => %d\n",
msp->stereo,newstereo);
msp->stereo = newstereo;
}
if (newnicam != msp->nicam_on) {
update = 1;
dprintk("msp34xx: watch: nicam %d => %d\n",
msp->nicam_on,newnicam);
msp->nicam_on = newnicam;
}
return update;
}
/*
* A kernel thread for msp3400 control -- we don't want to block the
* in the ioctl while doing the sound carrier & stereo detect
*/
static void msp3400c_stereo_wake(unsigned long data)
{
struct msp3400c *msp = (struct msp3400c*)data; /* XXX alpha ??? */
wake_up_interruptible(&msp->wq);
}
/* stereo/multilang monitoring */
static void watch_stereo(struct i2c_client *client)
{
struct msp3400c *msp = client->data;
if (autodetect_stereo(client)) {
if (msp->stereo & VIDEO_SOUND_STEREO)
msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
else if (msp->stereo & VIDEO_SOUND_LANG1)
msp3400c_setstereo(client,VIDEO_SOUND_LANG1);
else
msp3400c_setstereo(client,VIDEO_SOUND_MONO);
}
if (once)
msp->watch_stereo = 0;
if (msp->watch_stereo)
mod_timer(&msp->wake_stereo, jiffies+5*HZ);
}
static int msp3400c_thread(void *data)
{
struct i2c_client *client = data;
struct msp3400c *msp = client->data;
struct CARRIER_DETECT *cd;
int count, max1,max2,val1,val2, val,this;
#ifdef CONFIG_SMP
lock_kernel();
#endif
daemonize();
sigfillset(¤t->blocked);
strcpy(current->comm,"msp3400");
msp->thread = current;
#ifdef CONFIG_SMP
unlock_kernel();
#endif
printk("msp3400: daemon started\n");
if(msp->notify != NULL)
up(msp->notify);
for (;;) {
if (msp->rmmod)
goto done;
if (debug > 1)
printk("msp3400: thread: sleep\n");
interruptible_sleep_on(&msp->wq);
if (debug > 1)
printk("msp3400: thread: wakeup\n");
if (msp->rmmod || signal_pending(current))
goto done;
if (VIDEO_MODE_RADIO == msp->norm ||
MSP_MODE_EXTERN == msp->mode)
continue; /* nothing to do */
msp->active = 1;
if (msp->watch_stereo) {
watch_stereo(client);
msp->active = 0;
continue;
}
/* some time for the tuner to sync */
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ/5);
if (signal_pending(current))
goto done;
restart:
if (VIDEO_MODE_RADIO == msp->norm ||
MSP_MODE_EXTERN == msp->mode)
continue; /* nothing to do */
msp->restart = 0;
msp3400c_setvolume(client, msp->muted, 0, 0);
msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
val1 = val2 = 0;
max1 = max2 = -1;
del_timer(&msp->wake_stereo);
msp->watch_stereo = 0;
/* carrier detect pass #1 -- main carrier */
cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);
if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
/* autodetect doesn't work well with AM ... */
max1 = 3;
count = 0;
dprintk("msp3400: AM sound override\n");
}
for (this = 0; this < count; this++) {
msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ/10);
if (signal_pending(current))
goto done;
if (msp->restart)
msp->restart = 0;
val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
if (val > 32768)
val -= 65536;
if (val1 < val)
val1 = val, max1 = this;
dprintk("msp3400: carrier1 val: %5d / %s\n", val,cd[this].name);
}
/* carrier detect pass #2 -- second (stereo) carrier */
switch (max1) {
case 1: /* 5.5 */
cd = carrier_detect_55; count = CARRIER_COUNT(carrier_detect_55);
break;
case 3: /* 6.5 */
cd = carrier_detect_65; count = CARRIER_COUNT(carrier_detect_65);
break;
case 0: /* 4.5 */
case 2: /* 6.0 */
default:
cd = NULL; count = 0;
break;
}
if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
/* autodetect doesn't work well with AM ... */
cd = NULL; count = 0; max2 = 0;
}
for (this = 0; this < count; this++) {
msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ/10);
if (signal_pending(current))
goto done;
if (msp->restart)
goto restart;
val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
if (val > 32768)
val -= 65536;
if (val2 < val)
val2 = val, max2 = this;
dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name);
}
/* programm the msp3400 according to the results */
msp->main = carrier_detect_main[max1].cdo;
switch (max1) {
case 1: /* 5.5 */
if (max2 == 0) {
/* B/G FM-stereo */
msp->second = carrier_detect_55[max2].cdo;
msp3400c_setmode(client, MSP_MODE_FM_TERRA);
msp->nicam_on = 0;
msp3400c_setstereo(client, VIDEO_SOUND_MONO);
msp->watch_stereo = 1;
} else if (max2 == 1 && msp->nicam) {
/* B/G NICAM */
msp->second = carrier_detect_55[max2].cdo;
msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
msp->nicam_on = 1;
msp3400c_setcarrier(client, msp->second, msp->main);
msp->watch_stereo = 1;
} else {
goto no_second;
}
break;
case 2: /* 6.0 */
/* PAL I NICAM */
msp->second = MSP_CARRIER(6.552);
msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
msp->nicam_on = 1;
msp3400c_setcarrier(client, msp->second, msp->main);
msp->watch_stereo = 1;
break;
case 3: /* 6.5 */
if (max2 == 1 || max2 == 2) {
/* D/K FM-stereo */
msp->second = carrier_detect_65[max2].cdo;
msp3400c_setmode(client, MSP_MODE_FM_TERRA);
msp->nicam_on = 0;
msp3400c_setstereo(client, VIDEO_SOUND_MONO);
msp->watch_stereo = 1;
} else if (max2 == 0 &&
msp->norm == VIDEO_MODE_SECAM) {
/* L NICAM or AM-mono */
msp->second = carrier_detect_65[max2].cdo;
msp3400c_setmode(client, MSP_MODE_AM_NICAM);
msp->nicam_on = 0;
msp3400c_setstereo(client, VIDEO_SOUND_MONO);
msp3400c_setcarrier(client, msp->second, msp->main);
/* volume prescale for SCART (AM mono input) */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
msp->watch_stereo = 1;
} else if (max2 == 0 && msp->nicam) {
/* D/K NICAM */
msp->second = carrier_detect_65[max2].cdo;
msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
msp->nicam_on = 1;
msp3400c_setcarrier(client, msp->second, msp->main);
msp->watch_stereo = 1;
} else {
goto no_second;
}
break;
case 0: /* 4.5 */
default:
no_second:
msp->second = carrier_detect_main[max1].cdo;
msp3400c_setmode(client, MSP_MODE_FM_TERRA);
msp->nicam_on = 0;
msp3400c_setcarrier(client, msp->second, msp->main);
msp->stereo = VIDEO_SOUND_MONO;
msp3400c_setstereo(client, VIDEO_SOUND_MONO);
break;
}
/* unmute + restore dfp registers */
msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
msp3400c_restore_dfp(client);
if (msp->watch_stereo)
mod_timer(&msp->wake_stereo, jiffies+5*HZ);
if (debug)
msp3400c_print_mode(msp);
msp->active = 0;
}
done:
dprintk("msp3400: thread: exit\n");
msp->active = 0;
msp->thread = NULL;
if(msp->notify != NULL)
up(msp->notify);
return 0;
}
/* ----------------------------------------------------------------------- */
/* this one uses the automatic sound standard detection of newer */
/* msp34xx chip versions */
static struct MODES {
int retval;
int main, second;
char *name;
} modelist[] = {
{ 0x0000, 0, 0, "ERROR" },
{ 0x0001, 0, 0, "autodetect start" },
{ 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
{ 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
{ 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
{ 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
{ 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
{ 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
{ 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
{ 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
{ 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
{ 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
{ 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
{ 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
{ 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
{ 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
{ 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
{ 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
{ 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
{ -1, 0, 0, NULL }, /* EOF */
};
static int msp3410d_thread(void *data)
{
struct i2c_client *client = data;
struct msp3400c *msp = client->data;
int mode,val,i,std;
#ifdef CONFIG_SMP
lock_kernel();
#endif
daemonize();
sigfillset(¤t->blocked);
strcpy(current->comm,"msp3410 [auto]");
msp->thread = current;
#ifdef CONFIG_SMP
unlock_kernel();
#endif
printk("msp3410: daemon started\n");
if(msp->notify != NULL)
up(msp->notify);
for (;;) {
if (msp->rmmod)
goto done;
if (debug > 1)
printk("msp3410: thread: sleep\n");
interruptible_sleep_on(&msp->wq);
if (debug > 1)
printk("msp3410: thread: wakeup\n");
if (msp->rmmod || signal_pending(current))
goto done;
if (msp->mode == MSP_MODE_EXTERN)
continue;
msp->active = 1;
if (msp->watch_stereo) {
watch_stereo(client);
msp->active = 0;
continue;
}
/* some time for the tuner to sync */
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ/5);
if (signal_pending(current))
goto done;
restart:
if (msp->mode == MSP_MODE_EXTERN)
continue;
msp->restart = 0;
del_timer(&msp->wake_stereo);
msp->watch_stereo = 0;
/* put into sane state (and mute) */
msp3400c_reset(client);
/* start autodetect */
switch (msp->norm) {
case VIDEO_MODE_PAL:
mode = 0x1003;
std = 1;
break;
case VIDEO_MODE_NTSC: /* BTSC */
mode = 0x2003;
std = 0x0020;
break;
case VIDEO_MODE_SECAM:
mode = 0x0003;
std = 1;
break;
case VIDEO_MODE_RADIO:
mode = 0x0003;
std = 0x0040;
break;
default:
mode = 0x0003;
std = 1;
break;
}
msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
if (debug) {
int i;
for (i = 0; modelist[i].name != NULL; i++)
if (modelist[i].retval == std)
break;
printk("msp3410: setting mode: %s (0x%04x)\n",
modelist[i].name ? modelist[i].name : "unknown",std);
}
if (std != 1) {
/* programmed some specific mode */
val = std;
} else {
/* triggered autodetect */
for (;;) {
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ/10);
if (signal_pending(current))
goto done;
if (msp->restart)
goto restart;
/* check results */
val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
if (val < 0x07ff)
break;
dprintk("msp3410: detection still in progress\n");
}
}
for (i = 0; modelist[i].name != NULL; i++)
if (modelist[i].retval == val)
break;
dprintk("msp3410: current mode: %s (0x%04x)\n",
modelist[i].name ? modelist[i].name : "unknown",
val);
msp->main = modelist[i].main;
msp->second = modelist[i].second;
if (amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
/* autodetection has failed, let backup */
dprintk("msp3410: autodetection failed, switching to backup mode: %s (0x%04x)\n",
modelist[8].name ? modelist[8].name : "unknown",val);
val = 0x0009;
msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
}
/* set various prescales */
msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */
msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */
/* set stereo */
switch (val) {
case 0x0008: /* B/G NICAM */
case 0x000a: /* I NICAM */
if (val == 0x0008)
msp->mode = MSP_MODE_FM_NICAM1;
else
msp->mode = MSP_MODE_FM_NICAM2;
/* just turn on stereo */
msp->stereo = VIDEO_SOUND_STEREO;
msp->nicam_on = 1;
msp->watch_stereo = 1;
msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
break;
case 0x0009:
msp->mode = MSP_MODE_AM_NICAM;
msp->stereo = VIDEO_SOUND_MONO;
msp->nicam_on = 1;
msp3400c_setstereo(client,VIDEO_SOUND_MONO);
msp->watch_stereo = 1;
break;
case 0x0020: /* BTSC */
/* just turn on stereo */
msp->mode = MSP_MODE_BTSC;
msp->stereo = VIDEO_SOUND_STEREO;
msp->nicam_on = 0;
msp->watch_stereo = 1;
msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
break;
case 0x0040: /* FM radio */
msp->mode = MSP_MODE_FM_RADIO;
msp->stereo = VIDEO_SOUND_STEREO;
msp->nicam_on = 0;
msp->watch_stereo = 0;
/* scart routing */
msp3400c_set_scart(client,SCART_IN2,0);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220);
break;
case 0x0003:
msp->mode = MSP_MODE_FM_TERRA;
msp->stereo = VIDEO_SOUND_MONO;
msp->nicam_on = 0;
msp->watch_stereo = 1;
break;
}
/* unmute + restore dfp registers */
msp3400c_setbass(client, msp->bass);
msp3400c_settreble(client, msp->treble);
msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
msp3400c_restore_dfp(client);
if (msp->watch_stereo)
mod_timer(&msp->wake_stereo, jiffies+HZ);
msp->active = 0;
}
done:
dprintk("msp3410: thread: exit\n");
msp->active = 0;
msp->thread = NULL;
if(msp->notify != NULL)
up(msp->notify);
return 0;
}
/* ----------------------------------------------------------------------- */
static int msp_attach(struct i2c_adapter *adap, int addr,
unsigned short flags, int kind);
static int msp_detach(struct i2c_client *client);
static int msp_probe(struct i2c_adapter *adap);
static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg);
static struct i2c_driver driver = {
name: "i2c msp3400 driver",
id: I2C_DRIVERID_MSP3400,
flags: I2C_DF_NOTIFY,
attach_adapter: msp_probe,
detach_client: msp_detach,
command: msp_command,
};
static struct i2c_client client_template =
{
name: "(unset)",
driver: &driver,
};
static int msp_attach(struct i2c_adapter *adap, int addr,
unsigned short flags, int kind)
{
DECLARE_MUTEX_LOCKED(sem);
struct msp3400c *msp;
struct i2c_client *c;
int rev1,rev2,i;
client_template.adapter = adap;
client_template.addr = addr;
if (-1 == msp3400c_reset(&client_template)) {
dprintk("msp3400: no chip found\n");
return -1;
}
if (NULL == (c = kmalloc(sizeof(struct i2c_client),GFP_KERNEL)))
return -ENOMEM;
memcpy(c,&client_template,sizeof(struct i2c_client));
if (NULL == (msp = kmalloc(sizeof(struct msp3400c),GFP_KERNEL))) {
kfree(c);
return -ENOMEM;
}
memset(msp,0,sizeof(struct msp3400c));
msp->left = 65535;
msp->right = 65535;
msp->bass = 32768;
msp->treble = 32768;
for (i = 0; i < DFP_COUNT; i++)
msp->dfp_regs[i] = -1;
c->data = msp;
init_waitqueue_head(&msp->wq);
if (-1 == msp3400c_reset(c)) {
kfree(msp);
dprintk("msp3400: no chip found\n");
return -1;
}
rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e);
if (-1 != rev1)
rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f);
if ((-1 == rev1) || (0 == rev1 && 0 == rev2)) {
kfree(msp);
printk("msp3400: error while reading chip version\n");
return -1;
}
#if 0
/* this will turn on a 1kHz beep - might be useful for debugging... */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0014, 0x1040);
#endif
sprintf(c->name,"MSP34%02d%c-%c%d",
(rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f);
msp->nicam = (((rev2>>8)&0xff) != 00) ? 1 : 0;
if (simple == -1) {
/* default mode */
/* msp->simple = (((rev2>>8)&0xff) == 0) ? 0 : 1; */
msp->simple = ((rev1&0xff)+'@' > 'C');
} else {
/* use insmod option */
msp->simple = simple;
}
/* timer for stereo checking */
msp->wake_stereo.function = msp3400c_stereo_wake;
msp->wake_stereo.data = (unsigned long)msp;
/* hello world :-) */
printk(KERN_INFO "msp34xx: init: chip=%s",c->name);
if (msp->nicam)
printk(", has NICAM support");
printk("\n");
/* startup control thread */
MOD_INC_USE_COUNT;
msp->notify = &sem;
kernel_thread(msp->simple ? msp3410d_thread : msp3400c_thread,
(void *)c, 0);
down(&sem);
msp->notify = NULL;
wake_up_interruptible(&msp->wq);
/* update our own array */
for (i = 0; i < MSP3400_MAX; i++) {
if (NULL == msps[i]) {
msps[i] = c;
break;
}
}
/* done */
i2c_attach_client(c);
return 0;
}
static int msp_detach(struct i2c_client *client)
{
DECLARE_MUTEX_LOCKED(sem);
struct msp3400c *msp = (struct msp3400c*)client->data;
int i;
/* shutdown control thread */
del_timer(&msp->wake_stereo);
if (msp->thread)
{
msp->notify = &sem;
msp->rmmod = 1;
wake_up_interruptible(&msp->wq);
down(&sem);
msp->notify = NULL;
}
msp3400c_reset(client);
/* update our own array */
for (i = 0; i < MSP3400_MAX; i++) {
if (client == msps[i]) {
msps[i] = NULL;
break;
}
}
i2c_detach_client(client);
kfree(msp);
kfree(client);
MOD_DEC_USE_COUNT;
return 0;
}
static int msp_probe(struct i2c_adapter *adap)
{
if (adap->id == (I2C_ALGO_BIT | I2C_HW_B_BT848))
return i2c_probe(adap, &addr_data, msp_attach);
return 0;
}
static void msp_wake_thread(struct i2c_client *client)
{
struct msp3400c *msp = (struct msp3400c*)client->data;
msp3400c_setvolume(client,msp->muted,0,0);
msp->watch_stereo=0;
del_timer(&msp->wake_stereo);
if (msp->active)
msp->restart = 1;
wake_up_interruptible(&msp->wq);
}
static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
struct msp3400c *msp = (struct msp3400c*)client->data;
__u16 *sarg = arg;
#if 0
int *iarg = (int*)arg;
#endif
switch (cmd) {
case AUDC_SET_INPUT:
/* scart switching
- IN1 is often used for external input
- Hauppauge uses IN2 for the radio */
dprintk(KERN_DEBUG "msp34xx: AUDC_SET_INPUT(%d)\n",*sarg);
switch (*sarg) {
case AUDIO_RADIO:
msp->mode = MSP_MODE_FM_RADIO;
msp->stereo = VIDEO_SOUND_STEREO;
msp3400c_set_scart(client,SCART_IN2,0);
msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
msp3400c_setstereo(client,msp->stereo);
break;
case AUDIO_EXTERN:
msp->mode = MSP_MODE_EXTERN;
msp->stereo = VIDEO_SOUND_STEREO;
msp3400c_set_scart(client,SCART_IN1,0);
msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
msp3400c_setstereo(client,msp->stereo);
break;
case AUDIO_TUNER:
msp->mode = -1;
msp_wake_thread(client);
break;
default:
if (*sarg & AUDIO_MUTE)
msp3400c_set_scart(client,SCART_MUTE,0);
break;
}
if (msp->active)
msp->restart = 1;
break;
case AUDC_SET_RADIO:
msp->norm = VIDEO_MODE_RADIO;
msp->watch_stereo=0;
del_timer(&msp->wake_stereo);
dprintk("msp34xx: switching to radio mode\n");
if (msp->simple) {
/* the thread will do for us */
msp_wake_thread(client);
} else {
/* set msp3400 to FM radio mode */
msp3400c_setmode(client,MSP_MODE_FM_RADIO);
msp3400c_setcarrier(client, MSP_CARRIER(10.7),MSP_CARRIER(10.7));
msp3400c_setvolume(client,msp->muted,msp->left,msp->right);
}
if (msp->active)
msp->restart = 1;
break;
#if 1
/* work-in-progress: hook to control the DFP registers */
case MSP_SET_DFPREG:
{
struct msp_dfpreg *r = arg;
int i;
if (r->reg < 0 || r->reg >= DFP_COUNT)
return -EINVAL;
for (i = 0; i < sizeof(bl_dfp)/sizeof(int); i++)
if (r->reg == bl_dfp[i])
return -EINVAL;
msp->dfp_regs[r->reg] = r->value;
msp3400c_write(client,I2C_MSP3400C_DFP,r->reg,r->value);
return 0;
}
case MSP_GET_DFPREG:
{
struct msp_dfpreg *r = arg;
if (r->reg < 0 || r->reg >= DFP_COUNT)
return -EINVAL;
r->value = msp3400c_read(client,I2C_MSP3400C_DFP,r->reg);
return 0;
}
#endif
/* --- v4l ioctls --- */
/* take care: bttv does userspace copying, we'll get a
kernel pointer here... */
case VIDIOCGAUDIO:
{
struct video_audio *va = arg;
va->flags |= VIDEO_AUDIO_VOLUME |
VIDEO_AUDIO_BASS |
VIDEO_AUDIO_TREBLE |
VIDEO_AUDIO_MUTABLE;
if (msp->muted)
va->flags |= VIDEO_AUDIO_MUTE;
va->volume=MAX(msp->left,msp->right);
va->balance=(32768*MIN(msp->left,msp->right))/
(va->volume ? va->volume : 1);
va->balance=(msp->left<msp->right)?
(65535-va->balance) : va->balance;
if (0 == va->volume)
va->balance = 32768;
va->bass = msp->bass;
va->treble = msp->treble;
if (msp->norm != VIDEO_MODE_RADIO) {
autodetect_stereo(client);
va->mode = msp->stereo;
}
break;
}
case VIDIOCSAUDIO:
{
struct video_audio *va = arg;
msp->muted = (va->flags & VIDEO_AUDIO_MUTE);
msp->left = (MIN(65536 - va->balance,32768) *
va->volume) / 32768;
msp->right = (MIN(va->balance,32768) *
va->volume) / 32768;
msp->bass = va->bass;
msp->treble = va->treble;
msp3400c_setvolume(client,msp->muted,msp->left,msp->right);
msp3400c_setbass(client,msp->bass);
msp3400c_settreble(client,msp->treble);
if (va->mode != 0) {
msp->watch_stereo=0;
del_timer(&msp->wake_stereo);
msp->stereo = va->mode;
msp3400c_setstereo(client,va->mode);
}
break;
}
case VIDIOCSCHAN:
{
struct video_channel *vc = arg;
dprintk("msp34xx: switching to TV mode\n");
msp->norm = vc->norm;
break;
}
case VIDIOCSFREQ:
{
/* new channel -- kick audio carrier scan */
msp_wake_thread(client);
break;
}
default:
/* nothing */
break;
}
return 0;
}
/* ----------------------------------------------------------------------- */
int msp3400_init_module(void)
{
i2c_add_driver(&driver);
return 0;
}
void msp3400_cleanup_module(void)
{
i2c_del_driver(&driver);
}
module_init(msp3400_init_module);
module_exit(msp3400_cleanup_module);
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* ---------------------------------------------------------------------------
* Local variables:
* c-basic-offset: 8
* End:
*/
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