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提交 a832781c 编写于 作者: H Hans Verkuil 提交者： Mauro Carvalho Chehab
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V4L/DVB (8630): First mxb cleanup phase 

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
上级 7d341a6a
隐藏空白更改
内联 并排
Showing with 155 addition and 302 deletion
drivers/media/video/mxb.c
浏览文件 @ a832781c
......@@ -466,15 +466,15 @@ static int mxb_attach(struct saa7146_dev* dev, struct saa7146_pci_extension_data
/* checking for i2c-devices can be omitted here, because we
already did this in "mxb_vl42_probe" */
saa7146_vv_init(dev,&vv_data);
if( 0 != saa7146_register_device(&mxb->video_dev, dev, "mxb", VFL_TYPE_GRABBER)) {
saa7146_vv_init(dev, &vv_data);
if (saa7146_register_device(&mxb->video_dev, dev, "mxb", VFL_TYPE_GRABBER)) {
ERR(("cannot register capture v4l2 device. skipping.\n"));
return -1;
}
/* initialization stuff (vbi) (only for revision > 0 and for extensions which want it)*/
if( 0 != MXB_BOARD_CAN_DO_VBI(dev)) {
if( 0 != saa7146_register_device(&mxb->vbi_dev, dev, "mxb", VFL_TYPE_VBI)) {
if (MXB_BOARD_CAN_DO_VBI(dev)) {
if (saa7146_register_device(&mxb->vbi_dev, dev, "mxb", VFL_TYPE_VBI)) {
ERR(("cannot register vbi v4l2 device. skipping.\n"));
}
}
......@@ -486,7 +486,7 @@ static int mxb_attach(struct saa7146_dev* dev, struct saa7146_pci_extension_data
i2c_use_client(mxb->saa7111a);
i2c_use_client(mxb->tuner);
printk("mxb: found 'Multimedia eXtension Board'-%d.\n",mxb_num);
printk("mxb: found Multimedia eXtension Board #%d.\n", mxb_num);
mxb_num++;
mxb_init_done(dev);
......@@ -737,8 +737,8 @@ static int mxb_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
DEB_EE(("VIDIOC_G_TUNER: %d\n", t->index));
memset(t,0,sizeof(*t));
strcpy(t->name, "Television");
strlcpy(t->name, "Television", sizeof(t->name));
t->type = V4L2_TUNER_ANALOG_TV;
t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
t->rangelow = 772; /* 48.25 MHZ / 62.5 kHz = 772, see fi1216mk2-specs, page 2 */
......@@ -746,7 +746,6 @@ static int mxb_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
/* FIXME: add the real signal strength here */
t->signal = 0xffff;
t->afc = 0;
mxb->tda9840->driver->command(mxb->tda9840,TDA9840_DETECT, &byte);
t->audmode = mxb->cur_mode;
......
drivers/media/video/tda9840.c
浏览文件 @ a832781c
......@@ -2,6 +2,7 @@
tda9840 - i2c-driver for the tda9840 by SGS Thomson
Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de>
Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
The tda9840 is a stereo/dual sound processor with digital
identification. It can be found at address 0x84 on the i2c-bus.
......@@ -28,15 +29,18 @@
#include <linux/module.h>
#include <linux/ioctl.h>
#include <linux/i2c.h>
#include <media/v4l2-common.h>
#include <media/v4l2-i2c-drv-legacy.h>
#include "tda9840.h"
static int debug; /* insmod parameter */
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_DESCRIPTION("tda9840 driver");
MODULE_LICENSE("GPL");
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off device debugging (default:off).");
#define dprintk(args...) \
do { if (debug) { printk("%s: %s()[%d]: ", KBUILD_MODNAME, __func__, __LINE__); printk(args); } } while (0)
MODULE_PARM_DESC(debug, "Debug level (0-1)");
#define SWITCH 0x00
#define LEVEL_ADJUST 0x02
......@@ -49,18 +53,21 @@ static unsigned short normal_i2c[] = { I2C_ADDR_TDA9840, I2C_CLIENT_END };
/* magic definition of all other variables and things */
I2C_CLIENT_INSMOD;
static struct i2c_driver driver;
static struct i2c_client client_template;
static void tda9840_write(struct i2c_client *client, u8 reg, u8 val)
{
if (i2c_smbus_write_byte_data(client, reg, val))
v4l_dbg(1, debug, client, "error writing %02x to %02x\n",
val, reg);
}
static int command(struct i2c_client *client, unsigned int cmd, void *arg)
static int tda9840_command(struct i2c_client *client, unsigned cmd, void *arg)
{
int result;
int byte = *(int *)arg;
switch (cmd) {
case TDA9840_SWITCH:
dprintk("TDA9840_SWITCH: 0x%02x\n", byte);
v4l_dbg(1, debug, client, "TDA9840_SWITCH: 0x%02x\n", byte);
if (byte != TDA9840_SET_MONO
&& byte != TDA9840_SET_MUTE
......@@ -73,14 +80,11 @@ static int command(struct i2c_client *client, unsigned int cmd, void *arg)
return -EINVAL;
}
result = i2c_smbus_write_byte_data(client, SWITCH, byte);
if (result)
dprintk("i2c_smbus_write_byte() failed, ret:%d\n", result);
tda9840_write(client, SWITCH, byte);
break;
case TDA9840_LEVEL_ADJUST:
dprintk("TDA9840_LEVEL_ADJUST: %d\n", byte);
v4l_dbg(1, debug, client, "TDA9840_LEVEL_ADJUST: %d\n", byte);
/* check for correct range */
if (byte > 25 || byte < -20)
......@@ -92,15 +96,11 @@ static int command(struct i2c_client *client, unsigned int cmd, void *arg)
byte += 0x8;
else
byte = -byte;
result = i2c_smbus_write_byte_data(client, LEVEL_ADJUST, byte);
if (result)
dprintk("i2c_smbus_write_byte() failed, ret:%d\n", result);
tda9840_write(client, LEVEL_ADJUST, byte);
break;
case TDA9840_STEREO_ADJUST:
dprintk("TDA9840_STEREO_ADJUST: %d\n", byte);
v4l_dbg(1, debug, client, "TDA9840_STEREO_ADJUST: %d\n", byte);
/* check for correct range */
if (byte > 25 || byte < -24)
......@@ -113,9 +113,7 @@ static int command(struct i2c_client *client, unsigned int cmd, void *arg)
else
byte = -byte;
result = i2c_smbus_write_byte_data(client, STEREO_ADJUST, byte);
if (result)
dprintk("i2c_smbus_write_byte() failed, ret:%d\n", result);
tda9840_write(client, STEREO_ADJUST, byte);
break;
case TDA9840_DETECT: {
......@@ -123,29 +121,29 @@ static int command(struct i2c_client *client, unsigned int cmd, void *arg)
byte = i2c_smbus_read_byte_data(client, STEREO_ADJUST);
if (byte == -1) {
dprintk("i2c_smbus_read_byte_data() failed\n");
v4l_dbg(1, debug, client,
"i2c_smbus_read_byte_data() failed\n");
return -EIO;
}
if (0 != (byte & 0x80)) {
dprintk("TDA9840_DETECT: register contents invalid\n");
if (byte & 0x80) {
v4l_dbg(1, debug, client,
"TDA9840_DETECT: register contents invalid\n");
return -EINVAL;
}
dprintk("TDA9840_DETECT: byte: 0x%02x\n", byte);
*ret = ((byte & 0x60) >> 5);
v4l_dbg(1, debug, client, "TDA9840_DETECT: byte: 0x%02x\n", byte);
*ret = (byte & 0x60) >> 5;
result = 0;
break;
}
case TDA9840_TEST:
dprintk("TDA9840_TEST: 0x%02x\n", byte);
v4l_dbg(1, debug, client, "TDA9840_TEST: 0x%02x\n", byte);
/* mask out irrelevant bits */
byte &= 0x3;
result = i2c_smbus_write_byte_data(client, TEST, byte);
if (result)
dprintk("i2c_smbus_write_byte() failed, ret:%d\n", result);
tda9840_write(client, TEST, byte);
break;
default:
return -ENOIOCTLCMD;
......@@ -157,99 +155,51 @@ static int command(struct i2c_client *client, unsigned int cmd, void *arg)
return 0;
}
static int detect(struct i2c_adapter *adapter, int address, int kind)
static int tda9840_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_client *client;
int result = 0;
int byte = 0x0;
int result;
int byte;
/* let's see whether this adapter can support what we need */
if (0 == i2c_check_functionality(adapter,
I2C_FUNC_SMBUS_READ_BYTE_DATA |
I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) {
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_READ_BYTE_DATA |
I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
return 0;
}
/* allocate memory for client structure */
client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (!client) {
printk("not enough kernel memory\n");
return -ENOMEM;
}
/* fill client structure */
memcpy(client, &client_template, sizeof(struct i2c_client));
client->addr = address;
client->adapter = adapter;
/* tell the i2c layer a new client has arrived */
if (0 != (result = i2c_attach_client(client))) {
kfree(client);
return result;
}
v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
/* set initial values for level & stereo - adjustment, mode */
byte = 0;
result = command(client, TDA9840_LEVEL_ADJUST, &byte);
result += command(client, TDA9840_STEREO_ADJUST, &byte);
result = tda9840_command(client, TDA9840_LEVEL_ADJUST, &byte);
result += tda9840_command(client, TDA9840_STEREO_ADJUST, &byte);
byte = TDA9840_SET_MONO;
result = command(client, TDA9840_SWITCH, &byte);
result = tda9840_command(client, TDA9840_SWITCH, &byte);
if (result) {
dprintk("could not initialize tda9840\n");
v4l_dbg(1, debug, client, "could not initialize tda9840\n");
return -ENODEV;
}
printk("tda9840: detected @ 0x%02x on adapter %s\n", address, &client->adapter->name[0]);
return 0;
}
static int attach(struct i2c_adapter *adapter)
static int tda9840_legacy_probe(struct i2c_adapter *adapter)
{
/* let's see whether this is a know adapter we can attach to */
if (adapter->id != I2C_HW_SAA7146) {
dprintk("refusing to probe on unknown adapter [name='%s',id=0x%x]\n", adapter->name, adapter->id);
return -ENODEV;
}
return i2c_probe(adapter, &addr_data, &detect);
/* Let's see whether this is a known adapter we can attach to.
Prevents conflicts with tvaudio.c. */
return adapter->id == I2C_HW_SAA7146;
}
static int detach(struct i2c_client *client)
{
int ret = i2c_detach_client(client);
kfree(client);
return ret;
}
static struct i2c_driver driver = {
.driver = {
.name = "tda9840",
},
.id = I2C_DRIVERID_TDA9840,
.attach_adapter = attach,
.detach_client = detach,
.command = command,
static const struct i2c_device_id tda9840_id[] = {
{ "tda9840", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tda9840_id);
static struct i2c_client client_template = {
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "tda9840",
.driver = &driver,
.driverid = I2C_DRIVERID_TDA9840,
.command = tda9840_command,
.probe = tda9840_probe,
.legacy_probe = tda9840_legacy_probe,
.id_table = tda9840_id,
};
static int __init this_module_init(void)
{
return i2c_add_driver(&driver);
}
static void __exit this_module_exit(void)
{
i2c_del_driver(&driver);
}
module_init(this_module_init);
module_exit(this_module_exit);
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_DESCRIPTION("tda9840 driver");
MODULE_LICENSE("GPL");
drivers/media/video/tea6415c.c
浏览文件 @ a832781c
......@@ -2,6 +2,7 @@
tea6415c - i2c-driver for the tea6415c by SGS Thomson
Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de>
Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
The tea6415c is a bus controlled video-matrix-switch
with 8 inputs and 6 outputs.
......@@ -30,18 +31,18 @@
#include <linux/module.h>
#include <linux/ioctl.h>
#include <linux/i2c.h>
#include <media/v4l2-common.h>
#include <media/v4l2-i2c-drv-legacy.h>
#include "tea6415c.h"
static int debug; /* insmod parameter */
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off device debugging (default:off).");
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_DESCRIPTION("tea6415c driver");
MODULE_LICENSE("GPL");
#define dprintk(args...) \
do { if (debug) { printk("%s: %s()[%d]: ", KBUILD_MODNAME, __func__, __LINE__); printk(args); } } while (0)
static int debug;
module_param(debug, int, 0644);
#define TEA6415C_NUM_INPUTS 8
#define TEA6415C_NUM_OUTPUTS 6
MODULE_PARM_DESC(debug, "Debug level (0-1)");
/* addresses to scan, found only at 0x03 and/or 0x43 (7-bit) */
static unsigned short normal_i2c[] = { I2C_TEA6415C_1, I2C_TEA6415C_2, I2C_CLIENT_END };
......@@ -49,60 +50,6 @@ static unsigned short normal_i2c[] = { I2C_TEA6415C_1, I2C_TEA6415C_2, I2C_CLIEN
/* magic definition of all other variables and things */
I2C_CLIENT_INSMOD;
static struct i2c_driver driver;
static struct i2c_client client_template;
/* this function is called by i2c_probe */
static int detect(struct i2c_adapter *adapter, int address, int kind)
{
struct i2c_client *client = NULL;
int err = 0;
/* let's see whether this adapter can support what we need */
if (0 == i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_BYTE)) {
return 0;
}
/* allocate memory for client structure */
client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (!client) {
return -ENOMEM;
}
/* fill client structure */
memcpy(client, &client_template, sizeof(struct i2c_client));
client->addr = address;
client->adapter = adapter;
/* tell the i2c layer a new client has arrived */
if (0 != (err = i2c_attach_client(client))) {
kfree(client);
return err;
}
printk("tea6415c: detected @ 0x%02x on adapter %s\n", address, &client->adapter->name[0]);
return 0;
}
static int attach(struct i2c_adapter *adapter)
{
/* let's see whether this is a know adapter we can attach to */
if (adapter->id != I2C_HW_SAA7146) {
dprintk("refusing to probe on unknown adapter [name='%s',id=0x%x]\n", adapter->name, adapter->id);
return -ENODEV;
}
return i2c_probe(adapter, &addr_data, &detect);
}
static int detach(struct i2c_client *client)
{
int ret = i2c_detach_client(client);
kfree(client);
return ret;
}
/* makes a connection between the input-pin 'i' and the output-pin 'o'
for the tea6415c-client 'client' */
static int switch_matrix(struct i2c_client *client, int i, int o)
......@@ -110,7 +57,7 @@ static int switch_matrix(struct i2c_client *client, int i, int o)
u8 byte = 0;
int ret;
dprintk("adr:0x%02x, i:%d, o:%d\n", client->addr, i, o);
v4l_dbg(1, debug, client, "i=%d, o=%d\n", i, o);
/* check if the pins are valid */
if (0 == ((1 == i || 3 == i || 5 == i || 6 == i || 8 == i || 10 == i || 20 == i || 11 == i)
......@@ -168,14 +115,14 @@ static int switch_matrix(struct i2c_client *client, int i, int o)
ret = i2c_smbus_write_byte(client, byte);
if (ret) {
dprintk("i2c_smbus_write_byte() failed, ret:%d\n", ret);
v4l_dbg(1, debug, client,
"i2c_smbus_write_byte() failed, ret:%d\n", ret);
return -EIO;
}
return ret;
}
static int command(struct i2c_client *client, unsigned int cmd, void *arg)
static int tea6415c_command(struct i2c_client *client, unsigned cmd, void *arg)
{
struct tea6415c_multiplex *v = (struct tea6415c_multiplex *)arg;
int result = 0;
......@@ -187,38 +134,40 @@ static int command(struct i2c_client *client, unsigned int cmd, void *arg)
default:
return -ENOIOCTLCMD;
}
return result;
}
static struct i2c_driver driver = {
.driver = {
.name = "tea6415c",
},
.id = I2C_DRIVERID_TEA6415C,
.attach_adapter = attach,
.detach_client = detach,
.command = command,
};
static struct i2c_client client_template = {
.name = "tea6415c",
.driver = &driver,
};
static int __init this_module_init(void)
/* this function is called by i2c_probe */
static int tea6415c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
return i2c_add_driver(&driver);
/* let's see whether this adapter can support what we need */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WRITE_BYTE))
return 0;
v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
return 0;
}
static void __exit this_module_exit(void)
static int tea6415c_legacy_probe(struct i2c_adapter *adapter)
{
i2c_del_driver(&driver);
/* Let's see whether this is a known adapter we can attach to.
Prevents conflicts with tvaudio.c. */
return adapter->id == I2C_HW_SAA7146;
}
module_init(this_module_init);
module_exit(this_module_exit);
static const struct i2c_device_id tea6415c_id[] = {
{ "tea6415c", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tea6415c_id);
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_DESCRIPTION("tea6415c driver");
MODULE_LICENSE("GPL");
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "tea6415c",
.driverid = I2C_DRIVERID_TEA6415C,
.command = tea6415c_command,
.probe = tea6415c_probe,
.legacy_probe = tea6415c_legacy_probe,
.id_table = tea6415c_id,
};
drivers/media/video/tea6420.c
浏览文件 @ a832781c
......@@ -2,6 +2,7 @@
tea6420 - i2c-driver for the tea6420 by SGS Thomson
Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de>
Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
The tea6420 is a bus controlled audio-matrix with 5 stereo inputs,
4 stereo outputs and gain control for each output.
......@@ -30,15 +31,18 @@
#include <linux/module.h>
#include <linux/ioctl.h>
#include <linux/i2c.h>
#include <media/v4l2-common.h>
#include <media/v4l2-i2c-drv-legacy.h>
#include "tea6420.h"
static int debug; /* insmod parameter */
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_DESCRIPTION("tea6420 driver");
MODULE_LICENSE("GPL");
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off device debugging (default:off).");
#define dprintk(args...) \
do { if (debug) { printk("%s: %s()[%d]: ", KBUILD_MODNAME, __func__, __LINE__); printk(args); } } while (0)
MODULE_PARM_DESC(debug, "Debug level (0-1)");
/* addresses to scan, found only at 0x4c and/or 0x4d (7-Bit) */
static unsigned short normal_i2c[] = { I2C_ADDR_TEA6420_1, I2C_ADDR_TEA6420_2, I2C_CLIENT_END };
......@@ -46,23 +50,20 @@ static unsigned short normal_i2c[] = { I2C_ADDR_TEA6420_1, I2C_ADDR_TEA6420_2, I
/* magic definition of all other variables and things */
I2C_CLIENT_INSMOD;
static struct i2c_driver driver;
static struct i2c_client client_template;
/* make a connection between the input 'i' and the output 'o'
with gain 'g' for the tea6420-client 'client' (note: i = 6 means 'mute') */
static int tea6420_switch(struct i2c_client *client, int i, int o, int g)
{
u8 byte = 0;
u8 byte;
int ret;
dprintk("adr:0x%02x, i:%d, o:%d, g:%d\n", client->addr, i, o, g);
v4l_dbg(1, debug, client, "i=%d, o=%d, g=%d\n", i, o, g);
/* check if the parameters are valid */
if (i < 1 || i > 6 || o < 1 || o > 4 || g < 0 || g > 6 || g % 2 != 0)
return -1;
byte = ((o - 1) << 5);
byte = ((o - 1) << 5);
byte |= (i - 1);
/* to understand this, have a look at the tea6420-specs (p.5) */
......@@ -82,40 +83,41 @@ static int tea6420_switch(struct i2c_client *client, int i, int o, int g)
ret = i2c_smbus_write_byte(client, byte);
if (ret) {
dprintk("i2c_smbus_write_byte() failed, ret:%d\n", ret);
v4l_dbg(1, debug, client,
"i2c_smbus_write_byte() failed, ret:%d\n", ret);
return -EIO;
}
return 0;
}
/* this function is called by i2c_probe */
static int tea6420_detect(struct i2c_adapter *adapter, int address, int kind)
static int tea6420_command(struct i2c_client *client, unsigned cmd, void *arg)
{
struct i2c_client *client;
int err = 0, i = 0;
struct tea6420_multiplex *a = (struct tea6420_multiplex *)arg;
int result = 0;
/* let's see whether this adapter can support what we need */
if (0 == i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_BYTE)) {
return 0;
switch (cmd) {
case TEA6420_SWITCH:
result = tea6420_switch(client, a->in, a->out, a->gain);
break;
default:
return -ENOIOCTLCMD;
}
/* allocate memory for client structure */
client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (!client) {
return -ENOMEM;
}
return result;
}
/* fill client structure */
memcpy(client, &client_template, sizeof(struct i2c_client));
client->addr = address;
client->adapter = adapter;
/* this function is called by i2c_probe */
static int tea6420_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int err, i;
/* tell the i2c layer a new client has arrived */
if (0 != (err = i2c_attach_client(client))) {
kfree(client);
return err;
}
/* let's see whether this adapter can support what we need */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WRITE_BYTE))
return -EIO;
v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
/* set initial values: set "mute"-input to all outputs at gain 0 */
err = 0;
......@@ -123,78 +125,31 @@ static int tea6420_detect(struct i2c_adapter *adapter, int address, int kind)
err += tea6420_switch(client, 6, i, 0);
}
if (err) {
dprintk("could not initialize tea6420\n");
v4l_dbg(1, debug, client, "could not initialize tea6420\n");
kfree(client);
return -ENODEV;
}
printk("tea6420: detected @ 0x%02x on adapter %s\n", address, &client->adapter->name[0]);
return 0;
}
static int attach(struct i2c_adapter *adapter)
static int tea6420_legacy_probe(struct i2c_adapter *adapter)
{
/* let's see whether this is a know adapter we can attach to */
if (adapter->id != I2C_HW_SAA7146) {
dprintk("refusing to probe on unknown adapter [name='%s',id=0x%x]\n", adapter->name, adapter->id);
return -ENODEV;
}
return i2c_probe(adapter, &addr_data, &tea6420_detect);
}
static int detach(struct i2c_client *client)
{
int ret = i2c_detach_client(client);
kfree(client);
return ret;
}
static int command(struct i2c_client *client, unsigned int cmd, void *arg)
{
struct tea6420_multiplex *a = (struct tea6420_multiplex *)arg;
int result = 0;
switch (cmd) {
case TEA6420_SWITCH:
result = tea6420_switch(client, a->in, a->out, a->gain);
break;
default:
return -ENOIOCTLCMD;
}
return result;
/* Let's see whether this is a known adapter we can attach to.
Prevents conflicts with tvaudio.c. */
return adapter->id == I2C_HW_SAA7146;
}
static struct i2c_driver driver = {
.driver = {
.name = "tea6420",
},
.id = I2C_DRIVERID_TEA6420,
.attach_adapter = attach,
.detach_client = detach,
.command = command,
static const struct i2c_device_id tea6420_id[] = {
{ "tea6420", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tea6420_id);
static struct i2c_client client_template = {
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "tea6420",
.driver = &driver,
.driverid = I2C_DRIVERID_TEA6420,
.command = tea6420_command,
.probe = tea6420_probe,
.legacy_probe = tea6420_legacy_probe,
.id_table = tea6420_id,
};
static int __init this_module_init(void)
{
return i2c_add_driver(&driver);
}
static void __exit this_module_exit(void)
{
i2c_del_driver(&driver);
}
module_init(this_module_init);
module_exit(this_module_exit);
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_DESCRIPTION("tea6420 driver");
MODULE_LICENSE("GPL");
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