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linux/drivers/media/video/msp3400.c
Jean Delvare b3d5496ea5 [PATCH] I2C: Kill address ranges in non-sensors i2c chip drivers 
Some months ago, you killed the address ranges mechanism from all
sensors i2c chip drivers (both the module parameters and the in-code
address lists). I think it was a very good move, as the ranges can
easily be replaced by individual addresses, and this allowed for
significant cleanups in the i2c core (let alone the impressive size
shrink for all these drivers).

Unfortunately you did not do the same for non-sensors i2c chip drivers.
These need the address ranges even less, so we could get rid of the
ranges here as well for another significant i2c core cleanup. Here comes
a patch which does just that. Since the process is exactly the same as
what you did for the other drivers set already, I did not split this one
in parts.

A documentation update is included.

The change saves 308 bytes in the i2c core, and an average 1382 bytes
for chip drivers which use I2C_CLIENT_INSMOD, 126 bytes for those which
do not.

This change is required if we want to merge the sensors and non-sensors
i2c code (and we want to do this).

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Index: gregkh-2.6/Documentation/i2c/writing-clients
===================================================================
2005-06-21 21:51:48 -07:00

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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/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/i2c.h>
#include <linux/videodev.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/kthread.h>
#include <linux/suspend.h>
#include <asm/semaphore.h>
#include <asm/pgtable.h>
#include <media/audiochip.h>
#include <media/id.h>
#include "msp3400.h"
#define OPMODE_AUTO -1
#define OPMODE_MANUAL 0
#define OPMODE_SIMPLE 1 /* use short programming (>= msp3410 only) */
#define OPMODE_SIMPLER 2 /* use shorter programming (>= msp34xxG) */
/* insmod parameters */
static int opmode = OPMODE_AUTO;
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 standard = 1; /* Override auto detect of audio standard, if needed. */
static int dolby = 0;
static int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
(msp34xxg only) 0x00a0-0x03c0 */
struct msp3400c {
int rev1,rev2;
int opmode;
int mode;
int norm;
int nicam_on;
int acb;
int main, second; /* sound carrier */
int input;
int source; /* see msp34xxg_set_source */
/* v4l2 */
int audmode;
int rxsubchans;
int muted;
int volume, balance;
int bass, treble;
/* thread */
struct task_struct *kthread;
wait_queue_head_t wq;
int restart:1;
int watch_stereo:1;
};
#define HAVE_NICAM(msp) (((msp->rev2>>8) & 0xff) != 00)
#define HAVE_SIMPLE(msp) ((msp->rev1 & 0xff) >= 'D'-'@')
#define HAVE_SIMPLER(msp) ((msp->rev1 & 0xff) >= 'G'-'@')
#define HAVE_RADIO(msp) ((msp->rev1 & 0xff) >= 'G'-'@')
#define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */
/* ---------------------------------------------------------------------- */
#define dprintk if (debug >= 1) printk
#define d2printk if (debug >= 2) printk
/* read-only */
module_param(opmode, int, 0444);
/* read-write */
module_param(once, int, 0644);
module_param(debug, int, 0644);
module_param(stereo_threshold, int, 0644);
module_param(standard, int, 0644);
module_param(amsound, int, 0644);
module_param(dolby, int, 0644);
MODULE_PARM_DESC(once, "No continuous stereo monitoring");
MODULE_PARM_DESC(debug, "Enable debug messages");
MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("Dual BSD/GPL"); /* FreeBSD uses this too */
/* ---------------------------------------------------------------------- */
#define I2C_MSP3400C 0x80
#define I2C_MSP3400C_ALT 0x88
#define I2C_MSP3400C_DEM 0x10
#define I2C_MSP3400C_DFP 0x12
/* Addresses to scan */
static unsigned short normal_i2c[] = {
I2C_MSP3400C >> 1,
I2C_MSP3400C_ALT >> 1,
I2C_CLIENT_END
};
I2C_CLIENT_INSMOD;
/* ----------------------------------------------------------------------- */
/* functions for talking to the MSP3400C Sound processor */
static int msp3400c_reset(struct i2c_client *client)
{
/* reset and read revision code */
static char reset_off[3] = { 0x00, 0x80, 0x00 };
static char reset_on[3] = { 0x00, 0x00, 0x00 };
static char write[3] = { I2C_MSP3400C_DFP + 1, 0x00, 0x1e };
char read[2];
struct i2c_msg reset[2] = {
{ client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
{ client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
};
struct i2c_msg test[2] = {
{ client->addr, 0, 3, write },
{ client->addr, I2C_M_RD, 2, read },
};
if ( (1 != i2c_transfer(client->adapter,&reset[0],1)) ||
(1 != i2c_transfer(client->adapter,&reset[1],1)) ||
(2 != i2c_transfer(client->adapter,test,2)) ) {
printk(KERN_ERR "msp3400: chip reset failed\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);
msleep(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);
msleep(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))
/* ----------------------------------------------------------------------- */
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 = i2c_get_clientdata(client);
if (-1 == scarts[out][in])
return;
dprintk(KERN_DEBUG
"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 volume, int balance)
{
int val = 0, bal = 0;
if (!muted) {
/* 0x7f instead if 0x73 here has sound quality issues,
* probably due to overmodulation + clipping ... */
val = (volume * 0x73 / 65535) << 8;
}
if (val) {
bal = (balance / 256) - 128;
}
dprintk(KERN_DEBUG
"msp34xx: setvolume: mute=%s %d:%d v=0x%02x b=0x%02x\n",
muted ? "on" : "off", volume, balance, val>>8, bal);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007,
muted ? 0x01 : (val | 0x01));
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, bal << 8);
}
static void msp3400c_setbass(struct i2c_client *client, int bass)
{
int val = ((bass-32768) * 0x60 / 65535) << 8;
dprintk(KERN_DEBUG "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(KERN_DEBUG "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 = i2c_get_clientdata(client);
int i;
dprintk(KERN_DEBUG "msp3400: setmode: %d\n",type);
msp->mode = type;
msp->audmode = V4L2_TUNER_MODE_MONO;
msp->rxsubchans = V4L2_TUNER_SUB_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 (HAVE_NICAM(msp)) {
/* nicam prescale */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
}
}
static int best_audio_mode(int rxsubchans)
{
if (rxsubchans & V4L2_TUNER_SUB_STEREO)
return V4L2_TUNER_MODE_STEREO;
if (rxsubchans & V4L2_TUNER_SUB_LANG1)
return V4L2_TUNER_MODE_LANG1;
if (rxsubchans & V4L2_TUNER_SUB_LANG2)
return V4L2_TUNER_MODE_LANG2;
return V4L2_TUNER_MODE_MONO;
}
/* turn on/off nicam + stereo */
static void msp3400c_set_audmode(struct i2c_client *client, int audmode)
{
static char *strmode[16] = {
#if __GNUC__ >= 3
[ 0 ... 15 ] = "invalid",
#endif
[ V4L2_TUNER_MODE_MONO ] = "mono",
[ V4L2_TUNER_MODE_STEREO ] = "stereo",
[ V4L2_TUNER_MODE_LANG1 ] = "lang1",
[ V4L2_TUNER_MODE_LANG2 ] = "lang2",
};
struct msp3400c *msp = i2c_get_clientdata(client);
int nicam=0; /* channel source: FM/AM or nicam */
int src=0;
BUG_ON(msp->opmode == OPMODE_SIMPLER);
msp->audmode = audmode;
/* switch demodulator */
switch (msp->mode) {
case MSP_MODE_FM_TERRA:
dprintk(KERN_DEBUG "msp3400: FM setstereo: %s\n",
strmode[audmode]);
msp3400c_setcarrier(client,msp->second,msp->main);
switch (audmode) {
case V4L2_TUNER_MODE_STEREO:
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
break;
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1:
case V4L2_TUNER_MODE_LANG2:
msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
break;
}
break;
case MSP_MODE_FM_SAT:
dprintk(KERN_DEBUG "msp3400: SAT setstereo: %s\n",
strmode[audmode]);
switch (audmode) {
case V4L2_TUNER_MODE_MONO:
msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
break;
case V4L2_TUNER_MODE_STEREO:
msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
break;
case V4L2_TUNER_MODE_LANG1:
msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
case V4L2_TUNER_MODE_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(KERN_DEBUG "msp3400: NICAM setstereo: %s\n",
strmode[audmode]);
msp3400c_setcarrier(client,msp->second,msp->main);
if (msp->nicam_on)
nicam=0x0100;
break;
case MSP_MODE_BTSC:
dprintk(KERN_DEBUG "msp3400: BTSC setstereo: %s\n",
strmode[audmode]);
nicam=0x0300;
break;
case MSP_MODE_EXTERN:
dprintk(KERN_DEBUG "msp3400: extern setstereo: %s\n",
strmode[audmode]);
nicam = 0x0200;
break;
case MSP_MODE_FM_RADIO:
dprintk(KERN_DEBUG "msp3400: FM-Radio setstereo: %s\n",
strmode[audmode]);
break;
default:
dprintk(KERN_DEBUG "msp3400: mono setstereo\n");
return;
}
/* switch audio */
switch (audmode) {
case V4L2_TUNER_MODE_STEREO:
src = 0x0020 | nicam;
#if 0
/* spatial effect */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
#endif
break;
case V4L2_TUNER_MODE_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 V4L2_TUNER_MODE_LANG1:
src = 0x0000 | nicam;
break;
case V4L2_TUNER_MODE_LANG2:
src = 0x0010 | nicam;
break;
}
dprintk(KERN_DEBUG
"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(KERN_DEBUG "msp3400: mono sound carrier: %d.%03d MHz\n",
msp->main/910000,(msp->main/910)%1000);
} else {
printk(KERN_DEBUG "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(KERN_DEBUG "msp3400: NICAM/FM carrier : %d.%03d MHz\n",
msp->second/910000,(msp->second/910)%1000);
if (msp->mode == MSP_MODE_AM_NICAM)
printk(KERN_DEBUG "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(KERN_DEBUG "msp3400: FM-stereo carrier : %d.%03d MHz\n",
msp->second/910000,(msp->second/910)%1000);
}
}
/* ----------------------------------------------------------------------- */
struct REGISTER_DUMP {
int addr;
char *name;
};
static int
autodetect_stereo(struct i2c_client *client)
{
struct msp3400c *msp = i2c_get_clientdata(client);
int val;
int rxsubchans = msp->rxsubchans;
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 > 32767)
val -= 65536;
dprintk(KERN_DEBUG
"msp34xx: stereo detect register: %d\n",val);
if (val > 4096) {
rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
} else if (val < -4096) {
rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
} else {
rxsubchans = V4L2_TUNER_SUB_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(KERN_DEBUG
"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:
rxsubchans = V4L2_TUNER_SUB_STEREO;
break;
case 1:
case 9:
rxsubchans = V4L2_TUNER_SUB_MONO
| V4L2_TUNER_SUB_LANG1;
break;
case 2:
case 10:
rxsubchans = V4L2_TUNER_SUB_MONO
| V4L2_TUNER_SUB_LANG1
| V4L2_TUNER_SUB_LANG2;
break;
default:
rxsubchans = V4L2_TUNER_SUB_MONO;
break;
}
newnicam=1;
} else {
newnicam = 0;
rxsubchans = V4L2_TUNER_SUB_MONO;
}
break;
case MSP_MODE_BTSC:
val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
dprintk(KERN_DEBUG
"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" : "");
rxsubchans = V4L2_TUNER_SUB_MONO;
if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO;
if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1;
break;
}
if (rxsubchans != msp->rxsubchans) {
update = 1;
dprintk(KERN_DEBUG "msp34xx: watch: rxsubchans %d => %d\n",
msp->rxsubchans,rxsubchans);
msp->rxsubchans = rxsubchans;
}
if (newnicam != msp->nicam_on) {
update = 1;
dprintk(KERN_DEBUG "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 int msp34xx_sleep(struct msp3400c *msp, int timeout)
{
DECLARE_WAITQUEUE(wait, current);
again:
add_wait_queue(&msp->wq, &wait);
if (!kthread_should_stop()) {
if (timeout < 0) {
set_current_state(TASK_INTERRUPTIBLE);
schedule();
} else {
#if 0
/* hmm, that one doesn't return on wakeup ... */
msleep_interruptible(timeout);
#else
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(timeout));
#endif
}
}
remove_wait_queue(&msp->wq, &wait);
if (try_to_freeze(PF_FREEZE))
goto again;
return msp->restart;
}
/* stereo/multilang monitoring */
static void watch_stereo(struct i2c_client *client)
{
struct msp3400c *msp = i2c_get_clientdata(client);
if (autodetect_stereo(client))
msp3400c_set_audmode(client,best_audio_mode(msp->rxsubchans));
if (once)
msp->watch_stereo = 0;
}
static int msp3400c_thread(void *data)
{
struct i2c_client *client = data;
struct msp3400c *msp = i2c_get_clientdata(client);
struct CARRIER_DETECT *cd;
int count, max1,max2,val1,val2, val,this;
printk("msp3400: kthread started\n");
for (;;) {
d2printk("msp3400: thread: sleep\n");
msp34xx_sleep(msp,-1);
d2printk("msp3400: thread: wakeup\n");
restart:
dprintk("msp3410: thread: restart scan\n");
msp->restart = 0;
if (kthread_should_stop())
break;
if (VIDEO_MODE_RADIO == msp->norm ||
MSP_MODE_EXTERN == msp->mode) {
/* no carrier scan, just unmute */
printk("msp3400: thread: no carrier scan\n");
msp3400c_setvolume(client, msp->muted,
msp->volume, msp->balance);
continue;
}
/* mute */
msp3400c_setvolume(client, msp->muted, 0, 0);
msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
val1 = val2 = 0;
max1 = max2 = -1;
msp->watch_stereo = 0;
/* some time for the tuner to sync */
if (msp34xx_sleep(msp,200))
goto restart;
/* 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);
if (msp34xx_sleep(msp,100))
goto restart;
val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
if (val > 32767)
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);
if (msp34xx_sleep(msp,100))
goto restart;
val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
if (val > 32767)
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_set_audmode(client, V4L2_TUNER_MODE_MONO);
msp->watch_stereo = 1;
} else if (max2 == 1 && HAVE_NICAM(msp)) {
/* 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_set_audmode(client, V4L2_TUNER_MODE_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_set_audmode(client, V4L2_TUNER_MODE_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 && HAVE_NICAM(msp)) {
/* 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->rxsubchans = V4L2_TUNER_SUB_MONO;
msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO);
break;
}
/* unmute */
msp3400c_setvolume(client, msp->muted,
msp->volume, msp->balance);
if (debug)
msp3400c_print_mode(msp);
/* monitor tv audio mode */
while (msp->watch_stereo) {
if (msp34xx_sleep(msp,5000))
goto restart;
watch_stereo(client);
}
}
dprintk(KERN_DEBUG "msp3400: thread: exit\n");
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 inline const char *msp34xx_standard_mode_name(int mode)
{
int i;
for (i = 0; modelist[i].name != NULL; i++)
if (modelist[i].retval == mode)
return modelist[i].name;
return "unknown";
}
static int msp34xx_modus(int norm)
{
switch (norm) {
case VIDEO_MODE_PAL:
#if 1
/* experimental: not sure this works with all chip versions */
return 0x7003;
#else
/* previous value, try this if it breaks ... */
return 0x1003;
#endif
case VIDEO_MODE_NTSC: /* BTSC */
return 0x2003;
case VIDEO_MODE_SECAM:
return 0x0003;
case VIDEO_MODE_RADIO:
return 0x0003;
case VIDEO_MODE_AUTO:
return 0x2003;
default:
return 0x0003;
}
}
static int msp34xx_standard(int norm)
{
switch (norm) {
case VIDEO_MODE_PAL:
return 1;
case VIDEO_MODE_NTSC: /* BTSC */
return 0x0020;
case VIDEO_MODE_SECAM:
return 1;
case VIDEO_MODE_RADIO:
return 0x0040;
default:
return 1;
}
}
static int msp3410d_thread(void *data)
{
struct i2c_client *client = data;
struct msp3400c *msp = i2c_get_clientdata(client);
int mode,val,i,std;
printk("msp3410: daemon started\n");
for (;;) {
d2printk(KERN_DEBUG "msp3410: thread: sleep\n");
msp34xx_sleep(msp,-1);
d2printk(KERN_DEBUG "msp3410: thread: wakeup\n");
restart:
dprintk("msp3410: thread: restart scan\n");
msp->restart = 0;
if (kthread_should_stop())
break;
if (msp->mode == MSP_MODE_EXTERN) {
/* no carrier scan needed, just unmute */
dprintk(KERN_DEBUG "msp3410: thread: no carrier scan\n");
msp3400c_setvolume(client, msp->muted,
msp->volume, msp->balance);
continue;
}
/* put into sane state (and mute) */
msp3400c_reset(client);
/* some time for the tuner to sync */
if (msp34xx_sleep(msp,200))
goto restart;
/* start autodetect */
mode = msp34xx_modus(msp->norm);
std = msp34xx_standard(msp->norm);
msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
msp->watch_stereo = 0;
if (debug)
printk(KERN_DEBUG "msp3410: setting mode: %s (0x%04x)\n",
msp34xx_standard_mode_name(std) ,std);
if (std != 1) {
/* programmed some specific mode */
val = std;
} else {
/* triggered autodetect */
for (;;) {
if (msp34xx_sleep(msp,100))
goto restart;
/* check results */
val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
if (val < 0x07ff)
break;
dprintk(KERN_DEBUG "msp3410: detection still in progress\n");
}
}
for (i = 0; modelist[i].name != NULL; i++)
if (modelist[i].retval == val)
break;
dprintk(KERN_DEBUG "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(KERN_DEBUG "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->rxsubchans = V4L2_TUNER_SUB_STEREO;
msp->nicam_on = 1;
msp->watch_stereo = 1;
msp3400c_set_audmode(client,V4L2_TUNER_MODE_STEREO);
break;
case 0x0009:
msp->mode = MSP_MODE_AM_NICAM;
msp->rxsubchans = V4L2_TUNER_SUB_MONO;
msp->nicam_on = 1;
msp3400c_set_audmode(client,V4L2_TUNER_MODE_MONO);
msp->watch_stereo = 1;
break;
case 0x0020: /* BTSC */
/* just turn on stereo */
msp->mode = MSP_MODE_BTSC;
msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
msp->nicam_on = 0;
msp->watch_stereo = 1;
msp3400c_set_audmode(client,V4L2_TUNER_MODE_STEREO);
break;
case 0x0040: /* FM radio */
msp->mode = MSP_MODE_FM_RADIO;
msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
msp->audmode = V4L2_TUNER_MODE_STEREO;
msp->nicam_on = 0;
msp->watch_stereo = 0;
/* not needed in theory if HAVE_RADIO(), but
short programming enables carrier mute */
msp3400c_setmode(client,MSP_MODE_FM_RADIO);
msp3400c_setcarrier(client, MSP_CARRIER(10.7),
MSP_CARRIER(10.7));
/* scart routing */
msp3400c_set_scart(client,SCART_IN2,0);
#if 0
/* radio from SCART_IN2 */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220);
#else
/* msp34xx does radio decoding */
msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0020);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0020);
msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0020);
#endif
break;
case 0x0003:
case 0x0004:
case 0x0005:
msp->mode = MSP_MODE_FM_TERRA;
msp->rxsubchans = V4L2_TUNER_SUB_MONO;
msp->audmode = V4L2_TUNER_MODE_MONO;
msp->nicam_on = 0;
msp->watch_stereo = 1;
break;
}
/* unmute, restore misc registers */
msp3400c_setbass(client, msp->bass);
msp3400c_settreble(client, msp->treble);
msp3400c_setvolume(client, msp->muted,
msp->volume, msp->balance);
msp3400c_write(client, I2C_MSP3400C_DFP, 0x0013, msp->acb);
/* monitor tv audio mode */
while (msp->watch_stereo) {
if (msp34xx_sleep(msp,5000))
goto restart;
watch_stereo(client);
}
}
dprintk(KERN_DEBUG "msp3410: thread: exit\n");
return 0;
}
/* ----------------------------------------------------------------------- */
/* msp34xxG + (simpler no-thread) */
/* this one uses both automatic standard detection and automatic sound */
/* select which are available in the newer G versions */
/* struct msp: only norm, acb and source are really used in this mode */
static void msp34xxg_set_source(struct i2c_client *client, int source);
/* (re-)initialize the msp34xxg, according to the current norm in msp->norm
* return 0 if it worked, -1 if it failed
*/
static int msp34xxg_init(struct i2c_client *client)
{
struct msp3400c *msp = i2c_get_clientdata(client);
int modus,std;
if (msp3400c_reset(client))
return -1;
/* make sure that input/output is muted (paranoid mode) */
if (msp3400c_write(client,
I2C_MSP3400C_DFP,
0x13, /* ACB */
0x0f20 /* mute DSP input, mute SCART 1 */))
return -1;
/* step-by-step initialisation, as described in the manual */
modus = msp34xx_modus(msp->norm);
std = msp34xx_standard(msp->norm);
modus &= ~0x03; /* STATUS_CHANGE=0 */
modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION=1 */
if (msp3400c_write(client,
I2C_MSP3400C_DEM,
0x30/*MODUS*/,
modus))
return -1;
if (msp3400c_write(client,
I2C_MSP3400C_DEM,
0x20/*stanard*/,
std))
return -1;
/* write the dfps that may have an influence on
standard/audio autodetection right now */
msp34xxg_set_source(client, msp->source);
if (msp3400c_write(client, I2C_MSP3400C_DFP,
0x0e, /* AM/FM Prescale */
0x3000 /* default: [15:8] 75khz deviation */))
return -1;
if (msp3400c_write(client, I2C_MSP3400C_DFP,
0x10, /* NICAM Prescale */
0x5a00 /* default: 9db gain (as recommended) */))
return -1;
if (msp3400c_write(client,
I2C_MSP3400C_DEM,
0x20, /* STANDARD SELECT */
standard /* default: 0x01 for automatic standard select*/))
return -1;
return 0;
}
static int msp34xxg_thread(void *data)
{
struct i2c_client *client = data;
struct msp3400c *msp = i2c_get_clientdata(client);
int val, std, i;
printk("msp34xxg: daemon started\n");
msp->source = 1; /* default */
for (;;) {
d2printk(KERN_DEBUG "msp34xxg: thread: sleep\n");
msp34xx_sleep(msp,-1);
d2printk(KERN_DEBUG "msp34xxg: thread: wakeup\n");
restart:
dprintk("msp34xxg: thread: restart scan\n");
msp->restart = 0;
if (kthread_should_stop())
break;
/* setup the chip*/
msp34xxg_init(client);
std = standard;
if (std != 0x01)
goto unmute;
/* watch autodetect */
dprintk("msp34xxg: triggered autodetect, waiting for result\n");
for (i = 0; i < 10; i++) {
if (msp34xx_sleep(msp,100))
goto restart;
/* check results */
val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
if (val < 0x07ff) {
std = val;
break;
}
dprintk("msp34xxg: detection still in progress\n");
}
if (0x01 == std) {
dprintk("msp34xxg: detection still in progress after 10 tries. giving up.\n");
continue;
}
unmute:
dprintk("msp34xxg: current mode: %s (0x%04x)\n",
msp34xx_standard_mode_name(std), std);
/* unmute: dispatch sound to scart output, set scart volume */
dprintk("msp34xxg: unmute\n");
msp3400c_setbass(client, msp->bass);
msp3400c_settreble(client, msp->treble);
msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance);
/* restore ACB */
if (msp3400c_write(client,
I2C_MSP3400C_DFP,
0x13, /* ACB */
msp->acb))
return -1;
}
dprintk(KERN_DEBUG "msp34xxg: thread: exit\n");
return 0;
}
/* set the same 'source' for the loudspeaker, scart and quasi-peak detector
* the value for source is the same as bit 15:8 of DFP registers 0x08,
* 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
*
* this function replaces msp3400c_setstereo
*/
static void msp34xxg_set_source(struct i2c_client *client, int source)
{
struct msp3400c *msp = i2c_get_clientdata(client);
/* fix matrix mode to stereo and let the msp choose what
* to output according to 'source', as recommended
* for MONO (source==0) downmixing set bit[7:0] to 0x30
*/
int value = (source&0x07)<<8|(source==0 ? 0x30:0x20);
dprintk("msp34xxg: set source to %d (0x%x)\n", source, value);
msp3400c_write(client,
I2C_MSP3400C_DFP,
0x08, /* Loudspeaker Output */
value);
msp3400c_write(client,
I2C_MSP3400C_DFP,
0x0a, /* SCART1 DA Output */
value);
msp3400c_write(client,
I2C_MSP3400C_DFP,
0x0c, /* Quasi-peak detector */
value);
/*
* set identification threshold. Personally, I
* I set it to a higher value that the default
* of 0x190 to ignore noisy stereo signals.
* this needs tuning. (recommended range 0x00a0-0x03c0)
* 0x7f0 = forced mono mode
*/
msp3400c_write(client,
I2C_MSP3400C_DEM,
0x22, /* a2 threshold for stereo/bilingual */
stereo_threshold);
msp->source=source;
}
static void msp34xxg_detect_stereo(struct i2c_client *client)
{
struct msp3400c *msp = i2c_get_clientdata(client);
int status = msp3400c_read(client,
I2C_MSP3400C_DEM,
0x0200 /* STATUS */);
int is_bilingual = status&0x100;
int is_stereo = status&0x40;
msp->rxsubchans = 0;
if (is_stereo)
msp->rxsubchans |= V4L2_TUNER_SUB_STEREO;
else
msp->rxsubchans |= V4L2_TUNER_SUB_MONO;
if (is_bilingual) {
msp->rxsubchans |= V4L2_TUNER_SUB_LANG1|V4L2_TUNER_SUB_LANG2;
/* I'm supposed to check whether it's SAP or not
* and set only LANG2/SAP in this case. Yet, the MSP
* does a lot of work to hide this and handle everything
* the same way. I don't want to work around it so unless
* this is a problem, I'll handle SAP just like lang1/lang2.
*/
}
dprintk("msp34xxg: status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
status, is_stereo, is_bilingual, msp->rxsubchans);
}
static void msp34xxg_set_audmode(struct i2c_client *client, int audmode)
{
struct msp3400c *msp = i2c_get_clientdata(client);
int source;
switch (audmode) {
case V4L2_TUNER_MODE_MONO:
source=0; /* mono only */
break;
case V4L2_TUNER_MODE_STEREO:
source=1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
/* problem: that could also mean 2 (scart input) */
break;
case V4L2_TUNER_MODE_LANG1:
source=3; /* stereo or A */
break;
case V4L2_TUNER_MODE_LANG2:
source=4; /* stereo or B */
break;
default:
audmode = 0;
source = 1;
break;
}
msp->audmode = audmode;
msp34xxg_set_source(client, source);
}
/* ----------------------------------------------------------------------- */
static int msp_attach(struct i2c_adapter *adap, int addr, 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 int msp_suspend(struct device * dev, pm_message_t state, u32 level);
static int msp_resume(struct device * dev, u32 level);
static void msp_wake_thread(struct i2c_client *client);
static struct i2c_driver driver = {
.owner = THIS_MODULE,
.name = "i2c msp3400 driver",
.id = I2C_DRIVERID_MSP3400,
.flags = I2C_DF_NOTIFY,
.attach_adapter = msp_probe,
.detach_client = msp_detach,
.command = msp_command,
.driver = {
.suspend = msp_suspend,
.resume = msp_resume,
},
};
static struct i2c_client client_template =
{
I2C_DEVNAME("(unset)"),
.flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
{
struct msp3400c *msp;
struct i2c_client *c;
int (*thread_func)(void *data) = NULL;
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->volume = 58880; /* 0db gain */
msp->balance = 32768;
msp->bass = 32768;
msp->treble = 32768;
msp->input = -1;
msp->muted = 1;
i2c_set_clientdata(c, msp);
init_waitqueue_head(&msp->wq);
if (-1 == msp3400c_reset(c)) {
kfree(msp);
kfree(c);
dprintk("msp3400: no chip found\n");
return -1;
}
msp->rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e);
if (-1 != msp->rev1)
msp->rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f);
if ((-1 == msp->rev1) || (0 == msp->rev1 && 0 == msp->rev2)) {
kfree(msp);
kfree(c);
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(c,I2C_MSP3400C_DFP, 0x0014, 0x1040);
#endif
msp3400c_setvolume(c, msp->muted, msp->volume, msp->balance);
snprintf(c->name, sizeof(c->name), "MSP34%02d%c-%c%d",
(msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@',
((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f);
msp->opmode = opmode;
if (OPMODE_AUTO == msp->opmode) {
if (HAVE_SIMPLER(msp))
msp->opmode = OPMODE_SIMPLER;
else if (HAVE_SIMPLE(msp))
msp->opmode = OPMODE_SIMPLE;
else
msp->opmode = OPMODE_MANUAL;
}
/* hello world :-) */
printk(KERN_INFO "msp34xx: init: chip=%s",i2c_clientname(c));
if (HAVE_NICAM(msp))
printk(" +nicam");
if (HAVE_SIMPLE(msp))
printk(" +simple");
if (HAVE_SIMPLER(msp))
printk(" +simpler");
if (HAVE_RADIO(msp))
printk(" +radio");
/* version-specific initialization */
switch (msp->opmode) {
case OPMODE_MANUAL:
printk(" mode=manual");
thread_func = msp3400c_thread;
break;
case OPMODE_SIMPLE:
printk(" mode=simple");
thread_func = msp3410d_thread;
break;
case OPMODE_SIMPLER:
printk(" mode=simpler");
thread_func = msp34xxg_thread;
break;
}
printk("\n");
/* startup control thread if needed */
if (thread_func) {
msp->kthread = kthread_run(thread_func, c, "msp34xx");
if (NULL == msp->kthread)
printk(KERN_WARNING "msp34xx: kernel_thread() failed\n");
msp_wake_thread(c);
}
/* done */
i2c_attach_client(c);
return 0;
}
static int msp_detach(struct i2c_client *client)
{
struct msp3400c *msp = i2c_get_clientdata(client);
/* shutdown control thread */
if (msp->kthread >= 0) {
msp->restart = 1;
kthread_stop(msp->kthread);
}
msp3400c_reset(client);
i2c_detach_client(client);
kfree(msp);
kfree(client);
return 0;
}
static int msp_probe(struct i2c_adapter *adap)
{
if (adap->class & I2C_CLASS_TV_ANALOG)
return i2c_probe(adap, &addr_data, msp_attach);
return 0;
}
static void msp_wake_thread(struct i2c_client *client)
{
struct msp3400c *msp = i2c_get_clientdata(client);
if (NULL == msp->kthread)
return;
msp3400c_setvolume(client,msp->muted,0,0);
msp->watch_stereo = 0;
msp->restart = 1;
wake_up_interruptible(&msp->wq);
}
/* ----------------------------------------------------------------------- */
static int mode_v4l2_to_v4l1(int rxsubchans)
{
int mode = 0;
if (rxsubchans & V4L2_TUNER_SUB_STEREO)
mode |= VIDEO_SOUND_STEREO;
if (rxsubchans & V4L2_TUNER_SUB_LANG2)
mode |= VIDEO_SOUND_LANG2;
if (rxsubchans & V4L2_TUNER_SUB_LANG1)
mode |= VIDEO_SOUND_LANG1;
if (0 == mode)
mode |= VIDEO_SOUND_MONO;
return mode;
}
static int mode_v4l1_to_v4l2(int mode)
{
if (mode & VIDEO_SOUND_STEREO)
return V4L2_TUNER_MODE_STEREO;
if (mode & VIDEO_SOUND_LANG2)
return V4L2_TUNER_MODE_LANG2;
if (mode & VIDEO_SOUND_LANG1)
return V4L2_TUNER_MODE_LANG1;
return V4L2_TUNER_MODE_MONO;
}
static void msp_any_detect_stereo(struct i2c_client *client)
{
struct msp3400c *msp = i2c_get_clientdata(client);
switch (msp->opmode) {
case OPMODE_MANUAL:
case OPMODE_SIMPLE:
autodetect_stereo(client);
break;
case OPMODE_SIMPLER:
msp34xxg_detect_stereo(client);
break;
}
}
static void msp_any_set_audmode(struct i2c_client *client, int audmode)
{
struct msp3400c *msp = i2c_get_clientdata(client);
switch (msp->opmode) {
case OPMODE_MANUAL:
case OPMODE_SIMPLE:
msp->watch_stereo = 0;
msp3400c_set_audmode(client, audmode);
break;
case OPMODE_SIMPLER:
msp34xxg_set_audmode(client, audmode);
break;
}
}
static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
struct msp3400c *msp = i2c_get_clientdata(client);
__u16 *sarg = arg;
int scart = 0;
switch (cmd) {
case AUDC_SET_INPUT:
dprintk(KERN_DEBUG "msp34xx: AUDC_SET_INPUT(%d)\n",*sarg);
if (*sarg == msp->input)
break;
msp->input = *sarg;
switch (*sarg) {
case AUDIO_RADIO:
/* Hauppauge uses IN2 for the radio */
msp->mode = MSP_MODE_FM_RADIO;
scart = SCART_IN2;
break;
case AUDIO_EXTERN_1:
/* IN1 is often used for external input ... */
msp->mode = MSP_MODE_EXTERN;
scart = SCART_IN1;
break;
case AUDIO_EXTERN_2:
/* ... sometimes it is IN2 through ;) */
msp->mode = MSP_MODE_EXTERN;
scart = SCART_IN2;
break;
case AUDIO_TUNER:
msp->mode = -1;
break;
default:
if (*sarg & AUDIO_MUTE)
msp3400c_set_scart(client,SCART_MUTE,0);
break;
}
if (scart) {
msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
msp->audmode = V4L2_TUNER_MODE_STEREO;
msp3400c_set_scart(client,scart,0);
msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
if (msp->opmode != OPMODE_SIMPLER)
msp3400c_set_audmode(client, msp->audmode);
}
msp_wake_thread(client);
break;
case AUDC_SET_RADIO:
dprintk(KERN_DEBUG "msp34xx: AUDC_SET_RADIO\n");
msp->norm = VIDEO_MODE_RADIO;
dprintk(KERN_DEBUG "msp34xx: switching to radio mode\n");
msp->watch_stereo = 0;
switch (msp->opmode) {
case OPMODE_MANUAL:
/* 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->volume, msp->balance);
break;
case OPMODE_SIMPLE:
case OPMODE_SIMPLER:
/* the thread will do for us */
msp_wake_thread(client);
break;
}
break;
/* --- v4l ioctls --- */
/* take care: bttv does userspace copying, we'll get a
kernel pointer here... */
case VIDIOCGAUDIO:
{
struct video_audio *va = arg;
dprintk(KERN_DEBUG "msp34xx: VIDIOCGAUDIO\n");
va->flags |= VIDEO_AUDIO_VOLUME |
VIDEO_AUDIO_BASS |
VIDEO_AUDIO_TREBLE |
VIDEO_AUDIO_MUTABLE;
if (msp->muted)
va->flags |= VIDEO_AUDIO_MUTE;
va->volume = msp->volume;
va->balance = (va->volume) ? msp->balance : 32768;
va->bass = msp->bass;
va->treble = msp->treble;
msp_any_detect_stereo(client);
va->mode = mode_v4l2_to_v4l1(msp->rxsubchans);
break;
}
case VIDIOCSAUDIO:
{
struct video_audio *va = arg;
dprintk(KERN_DEBUG "msp34xx: VIDIOCSAUDIO\n");
msp->muted = (va->flags & VIDEO_AUDIO_MUTE);
msp->volume = va->volume;
msp->balance = va->balance;
msp->bass = va->bass;
msp->treble = va->treble;
msp3400c_setvolume(client, msp->muted,
msp->volume, msp->balance);
msp3400c_setbass(client,msp->bass);
msp3400c_settreble(client,msp->treble);
if (va->mode != 0 && msp->norm != VIDEO_MODE_RADIO)
msp_any_set_audmode(client,mode_v4l1_to_v4l2(va->mode));
break;
}
case VIDIOCSCHAN:
{
struct video_channel *vc = arg;
dprintk(KERN_DEBUG "msp34xx: VIDIOCSCHAN (norm=%d)\n",vc->norm);
msp->norm = vc->norm;
msp_wake_thread(client);
break;
}
case VIDIOCSFREQ:
case VIDIOC_S_FREQUENCY:
{
/* new channel -- kick audio carrier scan */
dprintk(KERN_DEBUG "msp34xx: VIDIOCSFREQ\n");
msp_wake_thread(client);
break;
}
/* --- v4l2 ioctls --- */
case VIDIOC_G_TUNER:
{
struct v4l2_tuner *vt = arg;
msp_any_detect_stereo(client);
vt->audmode = msp->audmode;
vt->rxsubchans = msp->rxsubchans;
vt->capability = V4L2_TUNER_CAP_STEREO |
V4L2_TUNER_CAP_LANG1|
V4L2_TUNER_CAP_LANG2;
break;
}
case VIDIOC_S_TUNER:
{
struct v4l2_tuner *vt=(struct v4l2_tuner *)arg;
/* only set audmode */
if (vt->audmode != -1 && vt->audmode != 0)
msp_any_set_audmode(client, vt->audmode);
break;
}
/* msp34xx specific */
case MSP_SET_MATRIX:
{
struct msp_matrix *mspm = arg;
dprintk(KERN_DEBUG "msp34xx: MSP_SET_MATRIX\n");
msp3400c_set_scart(client, mspm->input, mspm->output);
break;
}
default:
/* nothing */
break;
}
return 0;
}
static int msp_suspend(struct device * dev, pm_message_t state, u32 level)
{
struct i2c_client *c = container_of(dev, struct i2c_client, dev);
dprintk("msp34xx: suspend\n");
msp3400c_reset(c);
return 0;
}
static int msp_resume(struct device * dev, u32 level)
{
struct i2c_client *c = container_of(dev, struct i2c_client, dev);
dprintk("msp34xx: resume\n");
msp_wake_thread(c);
return 0;
}
/* ----------------------------------------------------------------------- */
static int __init msp3400_init_module(void)
{
return i2c_add_driver(&driver);
}
static void __exit 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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