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>
This commit is contained in:
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cc7ca3ea06
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d9460f067e
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@ -28,7 +28,7 @@
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#include <linux/i2c.h>
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#include <linux/i2c-id.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/v4l2-i2c-drv.h>
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@ -40,13 +40,20 @@ MODULE_LICENSE("GPL");
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/* ----------------------------------------------------------------------- */
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struct vp27smpx_state {
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struct v4l2_subdev sd;
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int radio;
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u32 audmode;
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};
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static void vp27smpx_set_audmode(struct i2c_client *client, u32 audmode)
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static inline struct vp27smpx_state *to_state(struct v4l2_subdev *sd)
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{
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struct vp27smpx_state *state = i2c_get_clientdata(client);
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return container_of(sd, struct vp27smpx_state, sd);
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}
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static void vp27smpx_set_audmode(struct v4l2_subdev *sd, u32 audmode)
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{
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struct vp27smpx_state *state = to_state(sd);
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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u8 data[3] = { 0x00, 0x00, 0x04 };
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switch (audmode) {
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@ -63,55 +70,89 @@ static void vp27smpx_set_audmode(struct i2c_client *client, u32 audmode)
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}
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if (i2c_master_send(client, data, sizeof(data)) != sizeof(data))
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v4l_err(client, "%s: I/O error setting audmode\n",
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client->name);
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v4l2_err(sd, "I/O error setting audmode\n");
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else
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state->audmode = audmode;
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}
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static int vp27smpx_command(struct i2c_client *client, unsigned cmd, void *arg)
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static int vp27smpx_s_radio(struct v4l2_subdev *sd)
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{
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struct vp27smpx_state *state = i2c_get_clientdata(client);
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struct v4l2_tuner *vt = arg;
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struct vp27smpx_state *state = to_state(sd);
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switch (cmd) {
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case AUDC_SET_RADIO:
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state->radio = 1;
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break;
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case VIDIOC_S_STD:
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state->radio = 0;
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break;
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case VIDIOC_S_TUNER:
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if (!state->radio)
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vp27smpx_set_audmode(client, vt->audmode);
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break;
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case VIDIOC_G_TUNER:
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if (state->radio)
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break;
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vt->audmode = state->audmode;
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vt->capability = V4L2_TUNER_CAP_STEREO |
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V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
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vt->rxsubchans = V4L2_TUNER_SUB_MONO;
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break;
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case VIDIOC_G_CHIP_IDENT:
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return v4l2_chip_ident_i2c_client(client, arg,
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V4L2_IDENT_VP27SMPX, 0);
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case VIDIOC_LOG_STATUS:
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v4l_info(client, "Audio Mode: %u%s\n", state->audmode,
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state->radio ? " (Radio)" : "");
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break;
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default:
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return -EINVAL;
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}
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state->radio = 1;
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return 0;
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}
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static int vp27smpx_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
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{
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struct vp27smpx_state *state = to_state(sd);
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state->radio = 0;
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return 0;
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}
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static int vp27smpx_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
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{
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struct vp27smpx_state *state = to_state(sd);
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if (!state->radio)
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vp27smpx_set_audmode(sd, vt->audmode);
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return 0;
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}
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static int vp27smpx_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
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{
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struct vp27smpx_state *state = to_state(sd);
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if (state->radio)
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return 0;
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vt->audmode = state->audmode;
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vt->capability = V4L2_TUNER_CAP_STEREO |
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V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
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vt->rxsubchans = V4L2_TUNER_SUB_MONO;
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return 0;
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}
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static int vp27smpx_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_VP27SMPX, 0);
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}
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static int vp27smpx_log_status(struct v4l2_subdev *sd)
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{
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struct vp27smpx_state *state = to_state(sd);
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v4l2_info(sd, "Audio Mode: %u%s\n", state->audmode,
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state->radio ? " (Radio)" : "");
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return 0;
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}
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static int vp27smpx_command(struct i2c_client *client, unsigned cmd, void *arg)
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{
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return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
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}
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/* ----------------------------------------------------------------------- */
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static const struct v4l2_subdev_core_ops vp27smpx_core_ops = {
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.log_status = vp27smpx_log_status,
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.g_chip_ident = vp27smpx_g_chip_ident,
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};
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static const struct v4l2_subdev_tuner_ops vp27smpx_tuner_ops = {
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.s_radio = vp27smpx_s_radio,
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.s_std = vp27smpx_s_std,
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.s_tuner = vp27smpx_s_tuner,
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.g_tuner = vp27smpx_g_tuner,
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};
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static const struct v4l2_subdev_ops vp27smpx_ops = {
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.core = &vp27smpx_core_ops,
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.tuner = &vp27smpx_tuner_ops,
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};
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/* ----------------------------------------------------------------------- */
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/* i2c implementation */
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@ -125,6 +166,7 @@ static int vp27smpx_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct vp27smpx_state *state;
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struct v4l2_subdev *sd;
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/* Check if the adapter supports the needed features */
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
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@ -136,17 +178,21 @@ static int vp27smpx_probe(struct i2c_client *client,
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state = kzalloc(sizeof(struct vp27smpx_state), GFP_KERNEL);
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if (state == NULL)
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return -ENOMEM;
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sd = &state->sd;
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v4l2_i2c_subdev_init(sd, client, &vp27smpx_ops);
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state->audmode = V4L2_TUNER_MODE_STEREO;
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i2c_set_clientdata(client, state);
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/* initialize vp27smpx */
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vp27smpx_set_audmode(client, state->audmode);
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vp27smpx_set_audmode(sd, state->audmode);
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return 0;
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}
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static int vp27smpx_remove(struct i2c_client *client)
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{
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kfree(i2c_get_clientdata(client));
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struct v4l2_subdev *sd = i2c_get_clientdata(client);
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v4l2_device_unregister_subdev(sd);
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kfree(to_state(sd));
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return 0;
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}
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