diff options
Diffstat (limited to 'drivers/media/video/tda9840.c')
| -rw-r--r-- | drivers/media/video/tda9840.c | 82 |
1 files changed, 9 insertions, 73 deletions
diff --git a/drivers/media/video/tda9840.c b/drivers/media/video/tda9840.c index 6afb7059502..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 }, { } @@ -262,10 +201,7 @@ MODULE_DEVICE_TABLE(i2c, tda9840_id); static struct v4l2_i2c_driver_data v4l2_i2c_data = { .name = "tda9840", - .driverid = I2C_DRIVERID_TDA9840, - .command = tda9840_command, .probe = tda9840_probe, .remove = tda9840_remove, - .legacy_probe = tda9840_legacy_probe, .id_table = tda9840_id, }; |