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android_kernel_xiaomi_sdm845/drivers/media/video/msp3400-driver.c
Hans Verkuil d312a46e53 V4L/DVB (3324): msp3400 audio handling bug fixes. 
- Check capabilities for audio settings (volume, balance,
bass, treble, loudness, mute)
- added loudness support
- added missing VIDEO_AUDIO_BALANCE flags for v4l1 compatibility
- do not call msp_any_detect_stereo for non-autoselect chips to
retrieve the current stereo setting: that will temporarily mute
the sound. It is only needed when the stereo mode might be
changed, and for autoselect msp processors that do not periodically
need to update their stereo setting.
- do not wake up the thread if the standard did not change. Prevents
temporary audio drop-out if the standard is set to the same value.
- fix confused stereo detect code where V4L2_TUNER_SUB_STEREO and
V4L2_TUNER_MODE_STEREO values were used incorrectly.
- stereo mode reporting was broken (v4l2 value used to index a
string array expecting v4l1 mode values).
- do not set dsp register 0x30 in the 3410d thread: that register
does not exist for pre-'G' revision msp chips.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
2006-01-09 18:21:36 -02:00

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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)
{
struct msp_state *state = i2c_get_clientdata(client);
v4l_dbg(1, client, "mute audio\n");
msp_write_dsp(client, 0x0000, 0);
msp_write_dsp(client, 0x0007, 1);
if (state->has_scart2_out_volume)
msp_write_dsp(client, 0x0040, 1);
if (state->has_headphones)
msp_write_dsp(client, 0x0006, 0);
}
void msp_set_audio(struct i2c_client *client)
{
struct msp_state *state = i2c_get_clientdata(client);
int bal = 0, bass, treble, loudness;
int val = 0;
if (!state->muted)
val = (state->volume * 0x7f / 65535) << 8;
v4l_dbg(1, client, "mute=%s volume=%d\n",
state->muted ? "on" : "off", state->volume);
msp_write_dsp(client, 0x0000, val);
msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
if (state->has_scart2_out_volume)
msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1));
if (state->has_headphones)
msp_write_dsp(client, 0x0006, val);
if (!state->has_sound_processing)
return;
if (val)
bal = (u8)((state->balance / 256) - 128);
bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
loudness = state->loudness ? ((5 * 4) << 8) : 0;
v4l_dbg(1, client, "balance=%d bass=%d treble=%d loudness=%d\n",
state->balance, state->bass, state->treble, state->loudness);
msp_write_dsp(client, 0x0001, bal << 8);
msp_write_dsp(client, 0x0002, bass);
msp_write_dsp(client, 0x0003, treble);
msp_write_dsp(client, 0x0004, loudness);
if (!state->has_headphones)
return;
msp_write_dsp(client, 0x0030, bal << 8);
msp_write_dsp(client, 0x0031, bass);
msp_write_dsp(client, 0x0032, treble);
msp_write_dsp(client, 0x0033, loudness);
}
int msp_modus(struct i2c_client *client)
{
struct msp_state *state = i2c_get_clientdata(client);
if (state->radio) {
v4l_dbg(1, client, "video mode selected to Radio\n");
return 0x0003;
}
if (state->std & V4L2_STD_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
}
if (state->std & V4L2_STD_NTSC) {
v4l_dbg(1, client, "video mode selected to NTSC\n");
return 0x2003;
}
if (state->std & V4L2_STD_SECAM) {
v4l_dbg(1, client, "video mode selected to SECAM\n");
return 0x0003;
}
return 0x0003;
}
/* ------------------------------------------------------------------------ */
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_std[] = {
{
.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_MUTE,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1,
.flags = 0,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},
};
static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
{
.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_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,
},{
.id = V4L2_CID_AUDIO_LOUDNESS,
.name = "Loudness",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1,
.flags = 0,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},
};
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_VOLUME:
ctrl->value = state->volume;
break;
case V4L2_CID_AUDIO_MUTE:
ctrl->value = state->muted;
break;
case V4L2_CID_AUDIO_BALANCE:
if (!state->has_sound_processing)
return -EINVAL;
ctrl->value = state->balance;
break;
case V4L2_CID_AUDIO_BASS:
if (!state->has_sound_processing)
return -EINVAL;
ctrl->value = state->bass;
break;
case V4L2_CID_AUDIO_TREBLE:
if (!state->has_sound_processing)
return -EINVAL;
ctrl->value = state->treble;
break;
case V4L2_CID_AUDIO_LOUDNESS:
if (!state->has_sound_processing)
return -EINVAL;
ctrl->value = state->loudness;
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_VOLUME:
state->volume = ctrl->value;
if (state->volume == 0)
state->balance = 32768;
break;
case V4L2_CID_AUDIO_MUTE:
if (ctrl->value < 0 || ctrl->value >= 2)
return -ERANGE;
state->muted = ctrl->value;
break;
case V4L2_CID_AUDIO_BASS:
if (!state->has_sound_processing)
return -EINVAL;
state->bass = ctrl->value;
break;
case V4L2_CID_AUDIO_TREBLE:
if (!state->has_sound_processing)
return -EINVAL;
state->treble = ctrl->value;
break;
case V4L2_CID_AUDIO_LOUDNESS:
if (!state->has_sound_processing)
return -EINVAL;
state->loudness = ctrl->value;
break;
case V4L2_CID_AUDIO_BALANCE:
if (!state->has_sound_processing)
return -EINVAL;
state->balance = ctrl->value;
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->radio = 1;
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_MUTABLE;
if (state->has_sound_processing)
va->flags |= VIDEO_AUDIO_BALANCE |
VIDEO_AUDIO_BASS |
VIDEO_AUDIO_TREBLE;
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;
if (state->opmode == OPMODE_AUTOSELECT)
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->radio == 0)
msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
break;
}
case VIDIOCSCHAN:
{
struct video_channel *vc = arg;
int update = 0;
v4l2_std_id std;
if (state->radio)
update = 1;
state->radio = 0;
if (vc->norm == VIDEO_MODE_PAL)
std = V4L2_STD_PAL;
else if (vc->norm == VIDEO_MODE_SECAM)
std = V4L2_STD_SECAM;
else
std = V4L2_STD_NTSC;
if (std != state->std) {
state->std = std;
update = 1;
}
if (update)
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;
int update = state->radio || state->std != *id;
state->std = *id;
state->radio = 0;
if (update)
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;
if (state->opmode == OPMODE_AUTOSELECT)
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_std); i++)
if (qc->id && qc->id == msp_qctrl_std[i].id) {
memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
return 0;
}
if (!state->has_sound_processing)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
memcpy(qc, &msp_qctrl_sound_processing[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:
if (state->opmode == OPMODE_AUTOSELECT)
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%s\n",
state->volume, state->muted ? " (muted)" : "");
if (state->has_sound_processing) {
v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
state->balance, state->bass, state->treble,
state->loudness ? "on" : "off");
}
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;
int msp_hard;
int msp_family;
int msp_revision;
int msp_product, msp_prod_hi, msp_prod_lo;
int msp_rom;
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->std = V4L2_STD_NTSC;
state->volume = 58880; /* 0db gain */
state->balance = 32768; /* 0db gain */
state->bass = 32768;
state->treble = 32768;
state->loudness = 0;
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);
msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
msp_product = (state->rev2 >> 8) & 0xff;
msp_prod_hi = msp_product / 10;
msp_prod_lo = msp_product % 10;
msp_revision = (state->rev1 & 0x0f) + '@';
msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
msp_rom = state->rev2 & 0x1f;
snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
msp_family, msp_product,
msp_revision, msp_hard, msp_rom);
/* Has NICAM support: all mspx41x and mspx45x products have NICAM */
state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
/* Has radio support: was added with revision G */
state->has_radio = msp_revision >= 'G';
/* Has headphones output: not for stripped down products */
state->has_headphones = msp_prod_lo < 5;
/* Has scart4 input: not in pre D revisions, not in stripped D revs */
state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
/* Has scart2 and scart3 inputs and scart2 output: not in stripped
down products of the '3' family */
state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
/* Has scart2 a volume control? Not in pre-D revisions. */
state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
/* Has subwoofer output: not in pre-D revs and not in stripped down products */
state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
/* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
stripped down products */
state->has_sound_processing = msp_prod_lo < 7;
/* Has Virtual Dolby Surround: only in msp34x1 */
state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
/* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
state->opmode = opmode;
if (state->opmode == OPMODE_AUTO) {
/* MSP revision G and up have both autodetect and autoselect */
if (msp_revision >= 'G')
state->opmode = OPMODE_AUTOSELECT;
/* MSP revision D and up have autodetect */
else if (msp_revision >= '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 (state->has_nicam && state->has_radio)
printk("supports nicam and radio, ");
else if (state->has_nicam)
printk("supports nicam, ");
else if (state->has_radio)
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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