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android_kernel_xiaomi_sm8350/drivers/media/video/msp3400-driver.c
Mauro Carvalho Chehab cab462f716 V4L/DVB (3307): Some cleanups at I2C modules 
- i2c names shorten
- removed obsoleted flags on newer modules
- small cleanups

Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
2006-01-09 15:53:26 -02:00

1141 lines
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/*
* Programming the mspx4xx 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
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/videodev.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/audiochip.h>
#include <linux/kthread.h>
#include <linux/suspend.h>
#include "msp3400.h"
/* ---------------------------------------------------------------------- */
MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("GPL");
/* module parameters */
static int opmode = OPMODE_AUTO;
int debug = 0; /* debug output */
int once = 0; /* no continous stereo monitoring */
int amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
the autoscan seems work well only with FM... */
int standard = 1; /* Override auto detect of audio standard, if needed. */
int dolby = 0;
int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
(msp34xxg only) 0x00a0-0x03c0 */
/* read-only */
module_param(opmode, int, 0444);
/* read-write */
module_param(once, bool, 0644);
module_param(debug, int, 0644);
module_param(stereo_threshold, int, 0644);
module_param(standard, int, 0644);
module_param(amsound, bool, 0644);
module_param(dolby, bool, 0644);
MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
MODULE_PARM_DESC(once, "No continuous stereo monitoring");
MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
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_PARM_DESC(dolby, "Activates Dolby processsing");
/* ---------------------------------------------------------------------- */
/* control subaddress */
#define I2C_MSP_CONTROL 0x00
/* demodulator unit subaddress */
#define I2C_MSP_DEM 0x10
/* DSP unit subaddress */
#define I2C_MSP_DSP 0x12
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
I2C_CLIENT_INSMOD;
/* ----------------------------------------------------------------------- */
/* functions for talking to the MSP3400C Sound processor */
int msp_reset(struct i2c_client *client)
{
/* reset and read revision code */
static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
u8 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 },
};
v4l_dbg(3, client, "msp_reset\n");
if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
i2c_transfer(client->adapter, test, 2) != 2) {
v4l_err(client, "chip reset failed\n");
return -1;
}
return 0;
}
static int msp_read(struct i2c_client *client, int dev, int addr)
{
int err, retval;
u8 write[3];
u8 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; err++) {
if (i2c_transfer(client->adapter, msgs, 2) == 2)
break;
v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
dev, addr);
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(msecs_to_jiffies(10));
}
if (err == 3) {
v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
msp_reset(client);
return -1;
}
retval = read[0] << 8 | read[1];
v4l_dbg(3, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
return retval;
}
int msp_read_dem(struct i2c_client *client, int addr)
{
return msp_read(client, I2C_MSP_DEM, addr);
}
int msp_read_dsp(struct i2c_client *client, int addr)
{
return msp_read(client, I2C_MSP_DSP, addr);
}
static int msp_write(struct i2c_client *client, int dev, int addr, int val)
{
int err;
u8 buffer[5];
buffer[0] = dev;
buffer[1] = addr >> 8;
buffer[2] = addr & 0xff;
buffer[3] = val >> 8;
buffer[4] = val & 0xff;
v4l_dbg(3, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
for (err = 0; err < 3; err++) {
if (i2c_master_send(client, buffer, 5) == 5)
break;
v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
dev, addr);
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(msecs_to_jiffies(10));
}
if (err == 3) {
v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
msp_reset(client);
return -1;
}
return 0;
}
int msp_write_dem(struct i2c_client *client, int addr, int val)
{
return msp_write(client, I2C_MSP_DEM, addr, val);
}
int msp_write_dsp(struct i2c_client *client, int addr, int val)
{
return msp_write(client, I2C_MSP_DSP, addr, val);
}
/* ----------------------------------------------------------------------- *
* bits 9 8 5 - SCART DSP input Select:
* 0 0 0 - SCART 1 to DSP input (reset position)
* 0 1 0 - MONO to DSP input
* 1 0 0 - SCART 2 to DSP input
* 1 1 1 - Mute DSP input
*
* bits 11 10 6 - SCART 1 Output Select:
* 0 0 0 - undefined (reset position)
* 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
* 1 0 0 - MONO input to SCART 1 Output
* 1 1 0 - SCART 1 DA to SCART 1 Output
* 0 0 1 - SCART 2 DA to SCART 1 Output
* 0 1 1 - SCART 1 Input to SCART 1 Output
* 1 1 1 - Mute SCART 1 Output
*
* bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
* 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
* 0 1 0 - SCART 1 Input to SCART 2 Output
* 1 0 0 - MONO input to SCART 2 Output
* 0 0 1 - SCART 2 DA to SCART 2 Output
* 0 1 1 - SCART 2 Input to SCART 2 Output
* 1 1 0 - Mute SCART 2 Output
*
* Bits 4 to 0 should be zero.
* ----------------------------------------------------------------------- */
static int scarts[3][9] = {
/* MASK IN1 IN2 IN1_DA IN2_DA IN3 IN4 MONO MUTE */
/* SCART DSP Input select */
{ 0x0320, 0x0000, 0x0200, -1, -1, 0x0300, 0x0020, 0x0100, 0x0320 },
/* SCART1 Output select */
{ 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
/* SCART2 Output select */
{ 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
};
static char *scart_names[] = {
"mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
};
void msp_set_scart(struct i2c_client *client, int in, int out)
{
struct msp_state *state = i2c_get_clientdata(client);
state->in_scart=in;
if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
if (-1 == scarts[out][in])
return;
state->acb &= ~scarts[out][SCART_MASK];
state->acb |= scarts[out][in];
} else
state->acb = 0xf60; /* Mute Input and SCART 1 Output */
v4l_dbg(1, client, "scart switch: %s => %d (ACB=0x%04x)\n",
scart_names[in], out, state->acb);
msp_write_dsp(client, 0x13, state->acb);
/* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
msp_write_dem(client, 0x40, state->i2s_mode);
}
void msp_set_mute(struct i2c_client *client)
{
v4l_dbg(1, client, "mute audio\n");
msp_write_dsp(client, 0x0000, 0); /* loudspeaker */
msp_write_dsp(client, 0x0006, 0); /* headphones */
}
void msp_set_audio(struct i2c_client *client)
{
struct msp_state *state = i2c_get_clientdata(client);
int val = 0, bal = 0, bass, treble;
if (!state->muted)
val = (state->volume * 0x7f / 65535) << 8;
if (val)
bal = (state->balance / 256) - 128;
bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
v4l_dbg(1, client, "mute=%s volume=%d balance=%d bass=%d treble=%d\n",
state->muted ? "on" : "off", state->volume, state->balance,
state->bass, state->treble);
msp_write_dsp(client, 0x0000, val); /* loudspeaker */
msp_write_dsp(client, 0x0006, val); /* headphones */
msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
msp_write_dsp(client, 0x0001, bal << 8);
msp_write_dsp(client, 0x0002, bass); /* loudspeaker */
msp_write_dsp(client, 0x0003, treble); /* loudspeaker */
}
int msp_modus(struct i2c_client *client, int norm)
{
switch (norm) {
case VIDEO_MODE_PAL:
v4l_dbg(1, client, "video mode selected to PAL\n");
#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 */
v4l_dbg(1, client, "video mode selected to NTSC\n");
return 0x2003;
case VIDEO_MODE_SECAM:
v4l_dbg(1, client, "video mode selected to SECAM\n");
return 0x0003;
case VIDEO_MODE_RADIO:
v4l_dbg(1, client, "video mode selected to Radio\n");
return 0x0003;
case VIDEO_MODE_AUTO:
v4l_dbg(1, client, "video mode selected to Auto\n");
return 0x2003;
default:
return 0x0003;
}
}
int msp_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 void msp_wake_thread(struct i2c_client *client)
{
struct msp_state *state = i2c_get_clientdata(client);
if (NULL == state->kthread)
return;
msp_set_mute(client);
state->watch_stereo = 0;
state->restart = 1;
wake_up_interruptible(&state->wq);
}
int msp_sleep(struct msp_state *state, int timeout)
{
DECLARE_WAITQUEUE(wait, current);
add_wait_queue(&state->wq, &wait);
if (!kthread_should_stop()) {
if (timeout < 0) {
set_current_state(TASK_INTERRUPTIBLE);
schedule();
} else {
schedule_timeout_interruptible
(msecs_to_jiffies(timeout));
}
}
remove_wait_queue(&state->wq, &wait);
try_to_freeze();
return state->restart;
}
/* ------------------------------------------------------------------------ */
static int msp_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 (mode == 0)
mode |= VIDEO_SOUND_MONO;
return mode;
}
static int msp_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 msp_state *state = i2c_get_clientdata(client);
switch (state->opmode) {
case OPMODE_MANUAL:
case OPMODE_AUTODETECT:
autodetect_stereo(client);
break;
case OPMODE_AUTOSELECT:
msp34xxg_detect_stereo(client);
break;
}
}
static struct v4l2_queryctrl msp_qctrl[] = {
{
.id = V4L2_CID_AUDIO_VOLUME,
.name = "Volume",
.minimum = 0,
.maximum = 65535,
.step = 65535/100,
.default_value = 58880,
.flags = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_AUDIO_BALANCE,
.name = "Balance",
.minimum = 0,
.maximum = 65535,
.step = 65535/100,
.default_value = 32768,
.flags = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_AUDIO_MUTE,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1,
.flags = 0,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},{
.id = V4L2_CID_AUDIO_BASS,
.name = "Bass",
.minimum = 0,
.maximum = 65535,
.step = 65535/100,
.default_value = 32768,
.type = V4L2_CTRL_TYPE_INTEGER,
},{
.id = V4L2_CID_AUDIO_TREBLE,
.name = "Treble",
.minimum = 0,
.maximum = 65535,
.step = 65535/100,
.default_value = 32768,
.type = V4L2_CTRL_TYPE_INTEGER,
},
};
static void msp_any_set_audmode(struct i2c_client *client, int audmode)
{
struct msp_state *state = i2c_get_clientdata(client);
switch (state->opmode) {
case OPMODE_MANUAL:
case OPMODE_AUTODETECT:
state->watch_stereo = 0;
msp3400c_setstereo(client, audmode);
break;
case OPMODE_AUTOSELECT:
msp34xxg_set_audmode(client, audmode);
break;
}
}
static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
{
struct msp_state *state = i2c_get_clientdata(client);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
ctrl->value = state->muted;
break;
case V4L2_CID_AUDIO_BALANCE:
ctrl->value = state->balance;
break;
case V4L2_CID_AUDIO_BASS:
ctrl->value = state->bass;
break;
case V4L2_CID_AUDIO_TREBLE:
ctrl->value = state->treble;
break;
case V4L2_CID_AUDIO_VOLUME:
ctrl->value = state->volume;
break;
default:
return -EINVAL;
}
return 0;
}
static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
{
struct msp_state *state = i2c_get_clientdata(client);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
if (ctrl->value < 0 || ctrl->value >= 2)
return -ERANGE;
state->muted = ctrl->value;
break;
case V4L2_CID_AUDIO_BASS:
state->bass = ctrl->value;
break;
case V4L2_CID_AUDIO_TREBLE:
state->treble = ctrl->value;
break;
case V4L2_CID_AUDIO_BALANCE:
state->balance = ctrl->value;
break;
case V4L2_CID_AUDIO_VOLUME:
state->volume = ctrl->value;
if (state->volume == 0)
state->balance = 32768;
break;
default:
return -EINVAL;
}
msp_set_audio(client);
return 0;
}
static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
struct msp_state *state = i2c_get_clientdata(client);
u16 *sarg = arg;
int scart = 0;
if (debug >= 2)
v4l_i2c_print_ioctl(client, cmd);
switch (cmd) {
case AUDC_SET_INPUT:
if (*sarg == state->input)
break;
state->input = *sarg;
switch (*sarg) {
case AUDIO_RADIO:
/* Hauppauge uses IN2 for the radio */
state->mode = MSP_MODE_FM_RADIO;
scart = SCART_IN2;
break;
case AUDIO_EXTERN_1:
/* IN1 is often used for external input ... */
state->mode = MSP_MODE_EXTERN;
scart = SCART_IN1;
break;
case AUDIO_EXTERN_2:
/* ... sometimes it is IN2 through ;) */
state->mode = MSP_MODE_EXTERN;
scart = SCART_IN2;
break;
case AUDIO_TUNER:
state->mode = -1;
break;
default:
if (*sarg & AUDIO_MUTE)
msp_set_scart(client, SCART_MUTE, 0);
break;
}
if (scart) {
state->rxsubchans = V4L2_TUNER_SUB_STEREO;
state->audmode = V4L2_TUNER_MODE_STEREO;
msp_set_scart(client, scart, 0);
msp_write_dsp(client, 0x000d, 0x1900);
if (state->opmode != OPMODE_AUTOSELECT)
msp3400c_setstereo(client, state->audmode);
}
msp_wake_thread(client);
break;
case AUDC_SET_RADIO:
state->norm = VIDEO_MODE_RADIO;
v4l_dbg(1, client, "switching to radio mode\n");
state->watch_stereo = 0;
switch (state->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));
msp_set_audio(client);
break;
case OPMODE_AUTODETECT:
case OPMODE_AUTOSELECT:
/* 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;
va->flags |= VIDEO_AUDIO_VOLUME |
VIDEO_AUDIO_BASS |
VIDEO_AUDIO_TREBLE |
VIDEO_AUDIO_MUTABLE;
if (state->muted)
va->flags |= VIDEO_AUDIO_MUTE;
if (state->muted)
va->flags |= VIDEO_AUDIO_MUTE;
va->volume = state->volume;
va->balance = state->volume ? state->balance : 32768;
va->bass = state->bass;
va->treble = state->treble;
msp_any_detect_stereo(client);
va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
break;
}
case VIDIOCSAUDIO:
{
struct video_audio *va = arg;
state->muted = (va->flags & VIDEO_AUDIO_MUTE);
state->volume = va->volume;
state->balance = va->balance;
state->bass = va->bass;
state->treble = va->treble;
msp_set_audio(client);
if (va->mode != 0 && state->norm != VIDEO_MODE_RADIO)
msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
break;
}
case VIDIOCSCHAN:
{
struct video_channel *vc = arg;
state->norm = vc->norm;
msp_wake_thread(client);
break;
}
case VIDIOCSFREQ:
case VIDIOC_S_FREQUENCY:
{
/* new channel -- kick audio carrier scan */
msp_wake_thread(client);
break;
}
/* msp34xx specific */
case MSP_SET_MATRIX:
{
struct msp_matrix *mspm = arg;
msp_set_scart(client, mspm->input, mspm->output);
break;
}
/* --- v4l2 ioctls --- */
case VIDIOC_S_STD:
{
v4l2_std_id *id = arg;
/*FIXME: use V4L2 mode flags on msp3400 instead of V4L1*/
if (*id & V4L2_STD_PAL) {
state->norm = VIDEO_MODE_PAL;
} else if (*id & V4L2_STD_SECAM) {
state->norm = VIDEO_MODE_SECAM;
} else {
state->norm = VIDEO_MODE_NTSC;
}
msp_wake_thread(client);
return 0;
}
case VIDIOC_ENUMINPUT:
{
struct v4l2_input *i = arg;
if (i->index != 0)
return -EINVAL;
i->type = V4L2_INPUT_TYPE_TUNER;
switch (i->index) {
case AUDIO_RADIO:
strcpy(i->name, "Radio");
break;
case AUDIO_EXTERN_1:
strcpy(i->name, "Extern 1");
break;
case AUDIO_EXTERN_2:
strcpy(i->name, "Extern 2");
break;
case AUDIO_TUNER:
strcpy(i->name, "Television");
break;
default:
return -EINVAL;
}
return 0;
}
case VIDIOC_G_AUDIO:
{
struct v4l2_audio *a = arg;
memset(a, 0, sizeof(*a));
switch (a->index) {
case AUDIO_RADIO:
strcpy(a->name, "Radio");
break;
case AUDIO_EXTERN_1:
strcpy(a->name, "Extern 1");
break;
case AUDIO_EXTERN_2:
strcpy(a->name, "Extern 2");
break;
case AUDIO_TUNER:
strcpy(a->name, "Television");
break;
default:
return -EINVAL;
}
msp_any_detect_stereo(client);
if (state->audmode == V4L2_TUNER_MODE_STEREO) {
a->capability = V4L2_AUDCAP_STEREO;
}
break;
}
case VIDIOC_S_AUDIO:
{
struct v4l2_audio *sarg = arg;
switch (sarg->index) {
case AUDIO_RADIO:
/* Hauppauge uses IN2 for the radio */
state->mode = MSP_MODE_FM_RADIO;
scart = SCART_IN2;
break;
case AUDIO_EXTERN_1:
/* IN1 is often used for external input ... */
state->mode = MSP_MODE_EXTERN;
scart = SCART_IN1;
break;
case AUDIO_EXTERN_2:
/* ... sometimes it is IN2 through ;) */
state->mode = MSP_MODE_EXTERN;
scart = SCART_IN2;
break;
case AUDIO_TUNER:
state->mode = -1;
break;
}
if (scart) {
state->rxsubchans = V4L2_TUNER_SUB_STEREO;
state->audmode = V4L2_TUNER_MODE_STEREO;
msp_set_scart(client, scart, 0);
msp_write_dsp(client, 0x000d, 0x1900);
}
if (sarg->capability == V4L2_AUDCAP_STEREO) {
state->audmode = V4L2_TUNER_MODE_STEREO;
} else {
state->audmode &= ~V4L2_TUNER_MODE_STEREO;
}
msp_any_set_audmode(client, state->audmode);
msp_wake_thread(client);
break;
}
case VIDIOC_G_TUNER:
{
struct v4l2_tuner *vt = arg;
msp_any_detect_stereo(client);
vt->audmode = state->audmode;
vt->rxsubchans = state->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;
}
case VIDIOC_G_AUDOUT:
{
struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
int idx = a->index;
memset(a, 0, sizeof(*a));
switch (idx) {
case 0:
strcpy(a->name, "Scart1 Out");
break;
case 1:
strcpy(a->name, "Scart2 Out");
break;
case 2:
strcpy(a->name, "I2S Out");
break;
default:
return -EINVAL;
}
break;
}
case VIDIOC_S_AUDOUT:
{
struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
if (a->index < 0 || a->index > 2)
return -EINVAL;
v4l_dbg(1, client, "Setting audio out on msp34xx to input %i\n", a->index);
msp_set_scart(client, state->in_scart, a->index + 1);
break;
}
case VIDIOC_INT_I2S_CLOCK_FREQ:
{
u32 *a = (u32 *)arg;
v4l_dbg(1, client, "Setting I2S speed to %d\n", *a);
switch (*a) {
case 1024000:
state->i2s_mode = 0;
break;
case 2048000:
state->i2s_mode = 1;
break;
default:
return -EINVAL;
}
break;
}
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *qc = arg;
int i;
for (i = 0; i < ARRAY_SIZE(msp_qctrl); i++)
if (qc->id && qc->id == msp_qctrl[i].id) {
memcpy(qc, &msp_qctrl[i], sizeof(*qc));
return 0;
}
return -EINVAL;
}
case VIDIOC_G_CTRL:
return msp_get_ctrl(client, arg);
case VIDIOC_S_CTRL:
return msp_set_ctrl(client, arg);
case VIDIOC_LOG_STATUS:
msp_any_detect_stereo(client);
v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
client->name, state->rev1, state->rev2);
v4l_info(client, "Audio: volume %d balance %d bass %d treble %d%s\n",
state->volume, state->balance,
state->bass, state->treble,
state->muted ? " (muted)" : "");
v4l_info(client, "Mode: %s (%s%s)\n", msp_standard_mode_name(state->mode),
(state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
(state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
v4l_info(client, "ACB: 0x%04x\n", state->acb);
break;
default:
/* nothing */
break;
}
return 0;
}
static int msp_suspend(struct device * dev, pm_message_t state)
{
struct i2c_client *client = container_of(dev, struct i2c_client, dev);
v4l_dbg(1, client, "suspend\n");
msp_reset(client);
return 0;
}
static int msp_resume(struct device * dev)
{
struct i2c_client *client = container_of(dev, struct i2c_client, dev);
v4l_dbg(1, client, "resume\n");
msp_wake_thread(client);
return 0;
}
/* ----------------------------------------------------------------------- */
static struct i2c_driver i2c_driver;
static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
{
struct i2c_client *client;
struct msp_state *state;
int (*thread_func)(void *data) = NULL;
client = kmalloc(sizeof(*client), GFP_KERNEL);
if (client == NULL)
return -ENOMEM;
memset(client, 0, sizeof(*client));
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver;
snprintf(client->name, sizeof(client->name) - 1, "msp3400");
if (msp_reset(client) == -1) {
v4l_dbg(1, client, "msp3400 not found\n");
kfree(client);
return -1;
}
state = kmalloc(sizeof(*state), GFP_KERNEL);
if (state == NULL) {
kfree(client);
return -ENOMEM;
}
i2c_set_clientdata(client, state);
memset(state, 0, sizeof(*state));
state->norm = VIDEO_MODE_NTSC;
state->volume = 58880; /* 0db gain */
state->balance = 32768; /* 0db gain */
state->bass = 32768;
state->treble = 32768;
state->input = -1;
state->muted = 0;
state->i2s_mode = 0;
init_waitqueue_head(&state->wq);
state->rev1 = msp_read_dsp(client, 0x1e);
if (state->rev1 != -1)
state->rev2 = msp_read_dsp(client, 0x1f);
v4l_dbg(1, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
v4l_dbg(1, client, "not an msp3400 (cannot read chip version)\n");
kfree(state);
kfree(client);
return -1;
}
msp_set_audio(client);
snprintf(client->name, sizeof(client->name), "MSP%c4%02d%c-%c%d",
((state->rev1 >> 4) & 0x0f) + '3',
(state->rev2 >> 8) & 0xff,
(state->rev1 & 0x0f) + '@',
((state->rev1 >> 8) & 0xff) + '@',
state->rev2 & 0x1f);
state->opmode = opmode;
if (state->opmode == OPMODE_AUTO) {
/* MSP revision G and up have both autodetect and autoselect */
if ((state->rev1 & 0x0f) >= 'G'-'@')
state->opmode = OPMODE_AUTOSELECT;
/* MSP revision D and up have autodetect */
else if ((state->rev1 & 0x0f) >= 'D'-'@')
state->opmode = OPMODE_AUTODETECT;
else
state->opmode = OPMODE_MANUAL;
}
/* hello world :-) */
v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
v4l_info(client, "%s ", client->name);
if (HAVE_NICAM(state) && HAVE_RADIO(state))
printk("supports nicam and radio, ");
else if (HAVE_NICAM(state))
printk("supports nicam, ");
else if (HAVE_RADIO(state))
printk("supports radio, ");
printk("mode is ");
/* version-specific initialization */
switch (state->opmode) {
case OPMODE_MANUAL:
printk("manual");
thread_func = msp3400c_thread;
break;
case OPMODE_AUTODETECT:
printk("autodetect");
thread_func = msp3410d_thread;
break;
case OPMODE_AUTOSELECT:
printk("autodetect and autoselect");
thread_func = msp34xxg_thread;
break;
}
printk("\n");
/* startup control thread if needed */
if (thread_func) {
state->kthread = kthread_run(thread_func, client, "msp34xx");
if (state->kthread == NULL)
v4l_warn(client, "kernel_thread() failed\n");
msp_wake_thread(client);
}
/* done */
i2c_attach_client(client);
return 0;
}
static int msp_probe(struct i2c_adapter *adapter)
{
if (adapter->class & I2C_CLASS_TV_ANALOG)
return i2c_probe(adapter, &addr_data, msp_attach);
return 0;
}
static int msp_detach(struct i2c_client *client)
{
struct msp_state *state = i2c_get_clientdata(client);
int err;
/* shutdown control thread */
if (state->kthread) {
state->restart = 1;
kthread_stop(state->kthread);
}
msp_reset(client);
err = i2c_detach_client(client);
if (err) {
return err;
}
kfree(state);
kfree(client);
return 0;
}
/* ----------------------------------------------------------------------- */
/* i2c implementation */
static struct i2c_driver i2c_driver = {
.id = I2C_DRIVERID_MSP3400,
.attach_adapter = msp_probe,
.detach_client = msp_detach,
.command = msp_command,
.driver = {
.name = "msp3400",
.suspend = msp_suspend,
.resume = msp_resume,
},
};
static int __init msp3400_init_module(void)
{
return i2c_add_driver(&i2c_driver);
}
static void __exit msp3400_cleanup_module(void)
{
i2c_del_driver(&i2c_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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