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author | Hans Verkuil <hverkuil@xs4all.nl> | 2008-11-29 16:01:28 (GMT) |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 11:38:43 (GMT) |
commit | d9460f067e45a0099cfa9349361de3b19e8e8ceb (patch) | |
tree | beabe9fee2e14e59296402ca2b75a159c4de3db6 /drivers/media/video/vp27smpx.c | |
parent | cc7ca3ea062c440d6d2cd995023bdfd0278f78a9 (diff) | |
download | linux-d9460f067e45a0099cfa9349361de3b19e8e8ceb.tar.xz |
V4L/DVB (9832): vp27smpx: convert to v4l2_subdev.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/vp27smpx.c')
-rw-r--r-- | drivers/media/video/vp27smpx.c | 126 |
1 files changed, 86 insertions, 40 deletions
diff --git a/drivers/media/video/vp27smpx.c b/drivers/media/video/vp27smpx.c index 577956c..f72b859 100644 --- a/drivers/media/video/vp27smpx.c +++ b/drivers/media/video/vp27smpx.c @@ -28,7 +28,7 @@ #include <linux/i2c.h> #include <linux/i2c-id.h> #include <linux/videodev2.h> -#include <media/v4l2-common.h> +#include <media/v4l2-device.h> #include <media/v4l2-chip-ident.h> #include <media/v4l2-i2c-drv.h> @@ -40,13 +40,20 @@ MODULE_LICENSE("GPL"); /* ----------------------------------------------------------------------- */ struct vp27smpx_state { + struct v4l2_subdev sd; int radio; u32 audmode; }; -static void vp27smpx_set_audmode(struct i2c_client *client, u32 audmode) +static inline struct vp27smpx_state *to_state(struct v4l2_subdev *sd) { - struct vp27smpx_state *state = i2c_get_clientdata(client); + return container_of(sd, struct vp27smpx_state, sd); +} + +static void vp27smpx_set_audmode(struct v4l2_subdev *sd, u32 audmode) +{ + struct vp27smpx_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); u8 data[3] = { 0x00, 0x00, 0x04 }; switch (audmode) { @@ -63,55 +70,89 @@ static void vp27smpx_set_audmode(struct i2c_client *client, u32 audmode) } if (i2c_master_send(client, data, sizeof(data)) != sizeof(data)) - v4l_err(client, "%s: I/O error setting audmode\n", - client->name); + v4l2_err(sd, "I/O error setting audmode\n"); else state->audmode = audmode; } -static int vp27smpx_command(struct i2c_client *client, unsigned cmd, void *arg) +static int vp27smpx_s_radio(struct v4l2_subdev *sd) { - struct vp27smpx_state *state = i2c_get_clientdata(client); - struct v4l2_tuner *vt = arg; + struct vp27smpx_state *state = to_state(sd); - switch (cmd) { - case AUDC_SET_RADIO: - state->radio = 1; - break; + state->radio = 1; + return 0; +} - case VIDIOC_S_STD: - state->radio = 0; - break; +static int vp27smpx_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) +{ + struct vp27smpx_state *state = to_state(sd); - case VIDIOC_S_TUNER: - if (!state->radio) - vp27smpx_set_audmode(client, vt->audmode); - break; + state->radio = 0; + return 0; +} - case VIDIOC_G_TUNER: - if (state->radio) - break; - vt->audmode = state->audmode; - vt->capability = V4L2_TUNER_CAP_STEREO | - V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; - vt->rxsubchans = V4L2_TUNER_SUB_MONO; - break; +static int vp27smpx_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) +{ + struct vp27smpx_state *state = to_state(sd); - case VIDIOC_G_CHIP_IDENT: - return v4l2_chip_ident_i2c_client(client, arg, - V4L2_IDENT_VP27SMPX, 0); + if (!state->radio) + vp27smpx_set_audmode(sd, vt->audmode); + return 0; +} - case VIDIOC_LOG_STATUS: - v4l_info(client, "Audio Mode: %u%s\n", state->audmode, - state->radio ? " (Radio)" : ""); - break; +static int vp27smpx_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) +{ + struct vp27smpx_state *state = to_state(sd); + + if (state->radio) + return 0; + vt->audmode = state->audmode; + vt->capability = V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; + vt->rxsubchans = V4L2_TUNER_SUB_MONO; + return 0; +} - default: - return -EINVAL; - } +static int vp27smpx_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_VP27SMPX, 0); +} + +static int vp27smpx_log_status(struct v4l2_subdev *sd) +{ + struct vp27smpx_state *state = to_state(sd); + + v4l2_info(sd, "Audio Mode: %u%s\n", state->audmode, + state->radio ? " (Radio)" : ""); return 0; } +static int vp27smpx_command(struct i2c_client *client, unsigned cmd, void *arg) +{ + return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg); +} + +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_subdev_core_ops vp27smpx_core_ops = { + .log_status = vp27smpx_log_status, + .g_chip_ident = vp27smpx_g_chip_ident, +}; + +static const struct v4l2_subdev_tuner_ops vp27smpx_tuner_ops = { + .s_radio = vp27smpx_s_radio, + .s_std = vp27smpx_s_std, + .s_tuner = vp27smpx_s_tuner, + .g_tuner = vp27smpx_g_tuner, +}; + +static const struct v4l2_subdev_ops vp27smpx_ops = { + .core = &vp27smpx_core_ops, + .tuner = &vp27smpx_tuner_ops, +}; + /* ----------------------------------------------------------------------- */ /* i2c implementation */ @@ -125,6 +166,7 @@ static int vp27smpx_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct vp27smpx_state *state; + struct v4l2_subdev *sd; /* Check if the adapter supports the needed features */ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) @@ -136,17 +178,21 @@ static int vp27smpx_probe(struct i2c_client *client, state = kzalloc(sizeof(struct vp27smpx_state), GFP_KERNEL); if (state == NULL) return -ENOMEM; + sd = &state->sd; + v4l2_i2c_subdev_init(sd, client, &vp27smpx_ops); state->audmode = V4L2_TUNER_MODE_STEREO; - i2c_set_clientdata(client, state); /* initialize vp27smpx */ - vp27smpx_set_audmode(client, state->audmode); + vp27smpx_set_audmode(sd, state->audmode); return 0; } static int vp27smpx_remove(struct i2c_client *client) { - kfree(i2c_get_clientdata(client)); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + + v4l2_device_unregister_subdev(sd); + kfree(to_state(sd)); return 0; } |