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yaml
---
r: 124450
b: refs/heads/master
c: d531305
h: refs/heads/master
v: v3
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Hans Verkuil authored and Mauro Carvalho Chehab committed Dec 30, 2008
1 parent 35ecc7e commit 9be839b
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Showing 2 changed files with 112 additions and 142 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 6869ffe80e4d662a99cea70acad087bb71beb21a
refs/heads/master: d531305ae148d5a401f34cd64434824f5cb8c2b1
252 changes: 111 additions & 141 deletions trunk/drivers/media/video/tda7432.c
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Original file line number Diff line number Diff line change
Expand Up @@ -47,9 +47,10 @@
#include <linux/videodev2.h>
#include <linux/i2c.h>

#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/i2c-addr.h>
#include <media/v4l2-i2c-drv-legacy.h>

#ifndef VIDEO_AUDIO_BALANCE
# define VIDEO_AUDIO_BALANCE 32
Expand Down Expand Up @@ -79,17 +80,20 @@ I2C_CLIENT_INSMOD;
/* Structure of address and subaddresses for the tda7432 */

struct tda7432 {
struct v4l2_subdev sd;
int addr;
int input;
int volume;
int muted;
int bass, treble;
int lf, lr, rf, rr;
int loud;
struct i2c_client c;
};
static struct i2c_driver driver;
static struct i2c_client client_template;

static inline struct tda7432 *to_state(struct v4l2_subdev *sd)
{
return container_of(sd, struct tda7432, sd);
}

/* The TDA7432 is made by STS-Thompson
* http://www.st.com
Expand Down Expand Up @@ -224,32 +228,33 @@ static struct i2c_client client_template;

/* Begin code */

static int tda7432_write(struct i2c_client *client, int subaddr, int val)
static int tda7432_write(struct v4l2_subdev *sd, int subaddr, int val)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
unsigned char buffer[2];
v4l_dbg(2, debug,client,"In tda7432_write\n");
v4l_dbg(1, debug,client,"Writing %d 0x%x\n", subaddr, val);

v4l2_dbg(2, debug, sd, "In tda7432_write\n");
v4l2_dbg(1, debug, sd, "Writing %d 0x%x\n", subaddr, val);
buffer[0] = subaddr;
buffer[1] = val;
if (2 != i2c_master_send(client,buffer,2)) {
v4l_err(client,"I/O error, trying (write %d 0x%x)\n",
if (2 != i2c_master_send(client, buffer, 2)) {
v4l2_err(sd, "I/O error, trying (write %d 0x%x)\n",
subaddr, val);
return -1;
}
return 0;
}

/* I don't think we ever actually _read_ the chip... */

static int tda7432_set(struct i2c_client *client)
static int tda7432_set(struct v4l2_subdev *sd)
{
struct tda7432 *t = i2c_get_clientdata(client);
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct tda7432 *t = to_state(sd);
unsigned char buf[16];
v4l_dbg(2, debug,client,"In tda7432_set\n");

v4l_dbg(1, debug,client,
v4l2_dbg(1, debug, sd,
"tda7432: 7432_set(0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x)\n",
t->input,t->volume,t->bass,t->treble,t->lf,t->lr,t->rf,t->rr,t->loud);
t->input, t->volume, t->bass, t->treble, t->lf, t->lr,
t->rf, t->rr, t->loud);
buf[0] = TDA7432_IN;
buf[1] = t->input;
buf[2] = t->volume;
Expand All @@ -260,18 +265,19 @@ static int tda7432_set(struct i2c_client *client)
buf[7] = t->rf;
buf[8] = t->rr;
buf[9] = t->loud;
if (10 != i2c_master_send(client,buf,10)) {
v4l_err(client,"I/O error, trying tda7432_set\n");
if (10 != i2c_master_send(client, buf, 10)) {
v4l2_err(sd, "I/O error, trying tda7432_set\n");
return -1;
}

return 0;
}

static void do_tda7432_init(struct i2c_client *client)
static void do_tda7432_init(struct v4l2_subdev *sd)
{
struct tda7432 *t = i2c_get_clientdata(client);
v4l_dbg(2, debug,client,"In tda7432_init\n");
struct tda7432 *t = to_state(sd);

v4l2_dbg(2, debug, sd, "In tda7432_init\n");

t->input = TDA7432_STEREO_IN | /* Main (stereo) input */
TDA7432_BASS_SYM | /* Symmetric bass cut */
Expand All @@ -288,57 +294,12 @@ static void do_tda7432_init(struct i2c_client *client)
t->rr = TDA7432_ATTEN_0DB; /* 0dB attenuation */
t->loud = loudness; /* insmod parameter */

tda7432_set(client);
tda7432_set(sd);
}

/* *********************** *
* i2c interface functions *
* *********************** */

static int tda7432_attach(struct i2c_adapter *adap, int addr, int kind)
static int tda7432_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct tda7432 *t;
struct i2c_client *client;

t = kzalloc(sizeof *t,GFP_KERNEL);
if (!t)
return -ENOMEM;

client = &t->c;
memcpy(client,&client_template,sizeof(struct i2c_client));
client->adapter = adap;
client->addr = addr;
i2c_set_clientdata(client, t);

do_tda7432_init(client);
i2c_attach_client(client);

v4l_info(client, "chip found @ 0x%x (%s)\n", addr << 1, adap->name);
return 0;
}

static int tda7432_probe(struct i2c_adapter *adap)
{
if (adap->class & I2C_CLASS_TV_ANALOG)
return i2c_probe(adap, &addr_data, tda7432_attach);
return 0;
}

static int tda7432_detach(struct i2c_client *client)
{
struct tda7432 *t = i2c_get_clientdata(client);

do_tda7432_init(client);
i2c_detach_client(client);

kfree(t);
return 0;
}

static int tda7432_get_ctrl(struct i2c_client *client,
struct v4l2_control *ctrl)
{
struct tda7432 *t = i2c_get_clientdata(client);
struct tda7432 *t = to_state(sd);

switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
Expand Down Expand Up @@ -382,10 +343,9 @@ static int tda7432_get_ctrl(struct i2c_client *client,
return -EINVAL;
}

static int tda7432_set_ctrl(struct i2c_client *client,
struct v4l2_control *ctrl)
static int tda7432_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct tda7432 *t = i2c_get_clientdata(client);
struct tda7432 *t = to_state(sd);

switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
Expand All @@ -400,7 +360,7 @@ static int tda7432_set_ctrl(struct i2c_client *client,
if (loudness) /* Turn on the loudness bit */
t->volume |= TDA7432_LD_ON;

tda7432_write(client,TDA7432_VL, t->volume);
tda7432_write(sd, TDA7432_VL, t->volume);
return 0;
case V4L2_CID_AUDIO_BALANCE:
if (ctrl->value < 32768) {
Expand Down Expand Up @@ -428,14 +388,14 @@ static int tda7432_set_ctrl(struct i2c_client *client,
if(t->bass>= 0x8)
t->bass = (~t->bass & 0xf) + 0x8 ;

tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble);
return 0;
case V4L2_CID_AUDIO_TREBLE:
t->treble= ctrl->value >> 12;
if(t->treble>= 0x8)
t->treble = (~t->treble & 0xf) + 0x8 ;

tda7432_write(client,TDA7432_TN, 0x10 | (t->bass << 4) | t->treble );
tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble);
return 0;
default:
return -EINVAL;
Expand All @@ -445,92 +405,102 @@ static int tda7432_set_ctrl(struct i2c_client *client,
if (t->muted)
{
/* Mute & update balance*/
tda7432_write(client,TDA7432_LF, t->lf | TDA7432_MUTE);
tda7432_write(client,TDA7432_LR, t->lr | TDA7432_MUTE);
tda7432_write(client,TDA7432_RF, t->rf | TDA7432_MUTE);
tda7432_write(client,TDA7432_RR, t->rr | TDA7432_MUTE);
tda7432_write(sd, TDA7432_LF, t->lf | TDA7432_MUTE);
tda7432_write(sd, TDA7432_LR, t->lr | TDA7432_MUTE);
tda7432_write(sd, TDA7432_RF, t->rf | TDA7432_MUTE);
tda7432_write(sd, TDA7432_RR, t->rr | TDA7432_MUTE);
} else {
tda7432_write(client,TDA7432_LF, t->lf);
tda7432_write(client,TDA7432_LR, t->lr);
tda7432_write(client,TDA7432_RF, t->rf);
tda7432_write(client,TDA7432_RR, t->rr);
tda7432_write(sd, TDA7432_LF, t->lf);
tda7432_write(sd, TDA7432_LR, t->lr);
tda7432_write(sd, TDA7432_RF, t->rf);
tda7432_write(sd, TDA7432_RR, t->rr);
}
return 0;
}

static int tda7432_command(struct i2c_client *client,
unsigned int cmd, void *arg)
static int tda7432_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
v4l_dbg(2, debug,client,"In tda7432_command\n");
if (debug>1)
v4l_i2c_print_ioctl(client,cmd);

switch (cmd) {
/* --- v4l ioctls --- */
/* take care: bttv does userspace copying, we'll get a
kernel pointer here... */
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *qc = arg;

switch (qc->id) {
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
default:
return -EINVAL;
}
switch (qc->id) {
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
return v4l2_ctrl_query_fill_std(qc);
}
case VIDIOC_S_CTRL:
return tda7432_set_ctrl(client, arg);

case VIDIOC_G_CTRL:
return tda7432_get_ctrl(client, arg);

} /* end of (cmd) switch */
return -EINVAL;
}

return 0;
static int tda7432_command(struct i2c_client *client, unsigned cmd, void *arg)
{
return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
}

static struct i2c_driver driver = {
.driver = {
.name = "tda7432",
},
.id = I2C_DRIVERID_TDA7432,
.attach_adapter = tda7432_probe,
.detach_client = tda7432_detach,
.command = tda7432_command,
/* ----------------------------------------------------------------------- */

static const struct v4l2_subdev_core_ops tda7432_core_ops = {
.queryctrl = tda7432_queryctrl,
.g_ctrl = tda7432_g_ctrl,
.s_ctrl = tda7432_s_ctrl,
};

static struct i2c_client client_template =
{
.name = "tda7432",
.driver = &driver,
static const struct v4l2_subdev_ops tda7432_ops = {
.core = &tda7432_core_ops,
};

static int __init tda7432_init(void)
/* ----------------------------------------------------------------------- */

/* *********************** *
* i2c interface functions *
* *********************** */

static int tda7432_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
if ( (loudness < 0) || (loudness > 15) ) {
printk(KERN_ERR "loudness parameter must be between 0 and 15\n");
return -EINVAL;
struct tda7432 *t;
struct v4l2_subdev *sd;

v4l_info(client, "chip found @ 0x%02x (%s)\n",
client->addr << 1, client->adapter->name);

t = kzalloc(sizeof(*t), GFP_KERNEL);
if (!t)
return -ENOMEM;
sd = &t->sd;
v4l2_i2c_subdev_init(sd, client, &tda7432_ops);
if (loudness < 0 || loudness > 15) {
v4l2_warn(sd, "loudness parameter must be between 0 and 15\n");
if (loudness < 0)
loudness = 0;
if (loudness > 15)
loudness = 15;
}

return i2c_add_driver(&driver);
do_tda7432_init(sd);
return 0;
}

static void __exit tda7432_fini(void)
static int tda7432_remove(struct i2c_client *client)
{
i2c_del_driver(&driver);
}
struct v4l2_subdev *sd = i2c_get_clientdata(client);

module_init(tda7432_init);
module_exit(tda7432_fini);
do_tda7432_init(sd);
v4l2_device_unregister_subdev(sd);
kfree(to_state(sd));
return 0;
}

/*
* Local variables:
* c-basic-offset: 8
* End:
*/
static const struct i2c_device_id tda7432_id[] = {
{ "tda7432", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tda7432_id);

static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "tda7432",
.driverid = I2C_DRIVERID_TDA7432,
.command = tda7432_command,
.probe = tda7432_probe,
.remove = tda7432_remove,
.id_table = tda7432_id,
};

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