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path: root/drivers/media/video/tda9840.c
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Diffstat (limited to 'drivers/media/video/tda9840.c')
-rw-r--r--drivers/media/video/tda9840.c81
1 files changed, 9 insertions, 72 deletions
diff --git a/drivers/media/video/tda9840.c b/drivers/media/video/tda9840.c
index ae46a28dd05..fe1158094c2 100644
--- a/drivers/media/video/tda9840.c
+++ b/drivers/media/video/tda9840.c
@@ -30,8 +30,8 @@
#include <linux/ioctl.h>
#include <linux/i2c.h>
#include <media/v4l2-device.h>
-#include <media/v4l2-i2c-drv-legacy.h>
-#include "tda9840.h"
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_DESCRIPTION("tda9840 driver");
@@ -56,11 +56,6 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
#define TDA9840_SET_BOTH_R 0x16
#define TDA9840_SET_EXTERNAL 0x7a
-/* addresses to scan, found only at 0x42 (7-Bit) */
-static unsigned short normal_i2c[] = { I2C_ADDR_TDA9840, I2C_CLIENT_END };
-
-/* magic definition of all other variables and things */
-I2C_CLIENT_INSMOD;
static void tda9840_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
@@ -137,60 +132,17 @@ static int tda9840_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *t)
return 0;
}
-static long tda9840_ioctl(struct v4l2_subdev *sd, unsigned cmd, void *arg)
+static int tda9840_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
{
- int byte;
-
- switch (cmd) {
- case TDA9840_LEVEL_ADJUST:
- byte = *(int *)arg;
- v4l2_dbg(1, debug, sd, "TDA9840_LEVEL_ADJUST: %d\n", byte);
-
- /* check for correct range */
- if (byte > 25 || byte < -20)
- return -EINVAL;
-
- /* calculate actual value to set, see specs, page 18 */
- byte /= 5;
- if (0 < byte)
- byte += 0x8;
- else
- byte = -byte;
- tda9840_write(sd, LEVEL_ADJUST, byte);
- break;
-
- case TDA9840_STEREO_ADJUST:
- byte = *(int *)arg;
- v4l2_dbg(1, debug, sd, "TDA9840_STEREO_ADJUST: %d\n", byte);
-
- /* check for correct range */
- if (byte > 25 || byte < -24)
- return -EINVAL;
-
- /* calculate actual value to set */
- byte /= 5;
- if (0 < byte)
- byte += 0x20;
- else
- byte = -byte;
-
- tda9840_write(sd, STEREO_ADJUST, byte);
- break;
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
-static int tda9840_command(struct i2c_client *client, unsigned cmd, void *arg)
-{
- return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+ return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TDA9840, 0);
}
/* ----------------------------------------------------------------------- */
static const struct v4l2_subdev_core_ops tda9840_core_ops = {
- .ioctl = tda9840_ioctl,
+ .g_chip_ident = tda9840_g_chip_ident,
};
static const struct v4l2_subdev_tuner_ops tda9840_tuner_ops = {
@@ -209,8 +161,6 @@ static int tda9840_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct v4l2_subdev *sd;
- int result;
- int byte;
/* let's see whether this adapter can support what we need */
if (!i2c_check_functionality(client->adapter,
@@ -227,15 +177,9 @@ static int tda9840_probe(struct i2c_client *client,
v4l2_i2c_subdev_init(sd, client, &tda9840_ops);
/* set initial values for level & stereo - adjustment, mode */
- byte = 0;
- result = tda9840_ioctl(sd, TDA9840_LEVEL_ADJUST, &byte);
- result |= tda9840_ioctl(sd, TDA9840_STEREO_ADJUST, &byte);
+ tda9840_write(sd, LEVEL_ADJUST, 0);
+ tda9840_write(sd, STEREO_ADJUST, 0);
tda9840_write(sd, SWITCH, TDA9840_SET_STEREO);
- if (result) {
- v4l2_dbg(1, debug, sd, "could not initialize tda9840\n");
- kfree(sd);
- return -ENODEV;
- }
return 0;
}
@@ -248,12 +192,7 @@ static int tda9840_remove(struct i2c_client *client)
return 0;
}
-static int tda9840_legacy_probe(struct i2c_adapter *adapter)
-{
- /* 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 const struct i2c_device_id tda9840_id[] = {
{ "tda9840", 0 },
{ }
@@ -262,9 +201,7 @@ MODULE_DEVICE_TABLE(i2c, tda9840_id);
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "tda9840",
- .command = tda9840_command,
.probe = tda9840_probe,
.remove = tda9840_remove,
- .legacy_probe = tda9840_legacy_probe,
.id_table = tda9840_id,
};