+
+static int tvaudio_g_ctrl(struct v4l2_subdev *sd,
+ struct v4l2_control *ctrl)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ if (!(desc->flags & CHIP_HAS_INPUTSEL))
+ break;
+ ctrl->value=chip->muted;
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
+ if (!(desc->flags & CHIP_HAS_VOLUME))
+ break;
+ ctrl->value = max(chip->left,chip->right);
+ return 0;
+ case V4L2_CID_AUDIO_BALANCE:
+ {
+ int volume;
+ if (!(desc->flags & CHIP_HAS_VOLUME))
+ break;
+ volume = max(chip->left,chip->right);
+ if (volume)
+ ctrl->value=(32768*min(chip->left,chip->right))/volume;
+ else
+ ctrl->value=32768;
+ return 0;
+ }
+ case V4L2_CID_AUDIO_BASS:
+ if (!(desc->flags & CHIP_HAS_BASSTREBLE))
+ break;
+ ctrl->value = chip->bass;
+ return 0;
+ case V4L2_CID_AUDIO_TREBLE:
+ if (!(desc->flags & CHIP_HAS_BASSTREBLE))
+ break;
+ ctrl->value = chip->treble;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int tvaudio_s_ctrl(struct v4l2_subdev *sd,
+ struct v4l2_control *ctrl)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ if (!(desc->flags & CHIP_HAS_INPUTSEL))
+ break;
+
+ if (ctrl->value < 0 || ctrl->value >= 2)
+ return -ERANGE;
+ chip->muted = ctrl->value;
+ if (chip->muted)
+ chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
+ else
+ chip_write_masked(chip,desc->inputreg,
+ desc->inputmap[chip->input],desc->inputmask);
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
+ {
+ int volume,balance;
+
+ if (!(desc->flags & CHIP_HAS_VOLUME))
+ break;
+
+ volume = max(chip->left,chip->right);
+ if (volume)
+ balance=(32768*min(chip->left,chip->right))/volume;
+ else
+ balance=32768;
+
+ volume=ctrl->value;
+ chip->left = (min(65536 - balance,32768) * volume) / 32768;
+ chip->right = (min(balance,volume *(__u16)32768)) / 32768;
+
+ chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
+ chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
+
+ return 0;
+ }
+ case V4L2_CID_AUDIO_BALANCE:
+ {
+ int volume, balance;
+ if (!(desc->flags & CHIP_HAS_VOLUME))
+ break;
+
+ volume = max(chip->left,chip->right);
+ balance = ctrl->value;
+
+ chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
+ chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
+
+ return 0;
+ }
+ case V4L2_CID_AUDIO_BASS:
+ if (!(desc->flags & CHIP_HAS_BASSTREBLE))
+ break;
+ chip->bass = ctrl->value;
+ chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
+
+ return 0;
+ case V4L2_CID_AUDIO_TREBLE:
+ if (!(desc->flags & CHIP_HAS_BASSTREBLE))
+ break;
+ chip->treble = ctrl->value;
+ chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
+
+ return 0;
+ }
+ return -EINVAL;
+}
+
+
+/* ---------------------------------------------------------------------- */
+/* video4linux interface */
+
+static int tvaudio_s_radio(struct v4l2_subdev *sd)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+
+ chip->radio = 1;
+ chip->watch_stereo = 0;
+ /* del_timer(&chip->wt); */
+ return 0;
+}
+
+static int tvaudio_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+
+ switch (qc->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ if (desc->flags & CHIP_HAS_INPUTSEL)
+ return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
+ break;
+ case V4L2_CID_AUDIO_VOLUME:
+ if (desc->flags & CHIP_HAS_VOLUME)
+ return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
+ break;
+ case V4L2_CID_AUDIO_BALANCE:
+ if (desc->flags & CHIP_HAS_VOLUME)
+ return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
+ break;
+ case V4L2_CID_AUDIO_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
+ if (desc->flags & CHIP_HAS_BASSTREBLE)
+ return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
+ break;
+ default:
+ break;
+ }
+ return -EINVAL;
+}
+
+static int tvaudio_s_routing(struct v4l2_subdev *sd,
+ u32 input, u32 output, u32 config)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+
+ if (!(desc->flags & CHIP_HAS_INPUTSEL))
+ return 0;
+ if (input >= 4)
+ return -EINVAL;
+ /* There are four inputs: tuner, radio, extern and intern. */
+ chip->input = input;
+ if (chip->muted)
+ return 0;
+ chip_write_masked(chip, desc->inputreg,
+ desc->inputmap[chip->input], desc->inputmask);
+ return 0;
+}
+
+static int tvaudio_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+ int mode = 0;
+
+ if (!desc->setmode)
+ return 0;
+ if (chip->radio)
+ return 0;
+
+ switch (vt->audmode) {
+ case V4L2_TUNER_MODE_MONO:
+ case V4L2_TUNER_MODE_STEREO:
+ case V4L2_TUNER_MODE_LANG1:
+ case V4L2_TUNER_MODE_LANG2:
+ mode = vt->audmode;
+ break;
+ case V4L2_TUNER_MODE_LANG1_LANG2:
+ mode = V4L2_TUNER_MODE_STEREO;
+ break;
+ default:
+ return -EINVAL;
+ }
+ chip->audmode = vt->audmode;
+
+ if (mode) {
+ chip->watch_stereo = 0;
+ /* del_timer(&chip->wt); */
+ chip->mode = mode;
+ desc->setmode(chip, mode);
+ }
+ return 0;
+}
+
+static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+ int mode = V4L2_TUNER_MODE_MONO;
+
+ if (!desc->getmode)
+ return 0;
+ if (chip->radio)
+ return 0;
+
+ vt->audmode = chip->audmode;
+ vt->rxsubchans = 0;
+ vt->capability = V4L2_TUNER_CAP_STEREO |
+ V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
+
+ mode = desc->getmode(chip);
+
+ if (mode & V4L2_TUNER_MODE_MONO)
+ vt->rxsubchans |= V4L2_TUNER_SUB_MONO;
+ if (mode & V4L2_TUNER_MODE_STEREO)
+ vt->rxsubchans |= V4L2_TUNER_SUB_STEREO;
+ /* Note: for SAP it should be mono/lang2 or stereo/lang2.
+ When this module is converted fully to v4l2, then this
+ should change for those chips that can detect SAP. */
+ if (mode & V4L2_TUNER_MODE_LANG1)
+ vt->rxsubchans = V4L2_TUNER_SUB_LANG1 |
+ V4L2_TUNER_SUB_LANG2;
+ return 0;
+}
+
+static int tvaudio_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+
+ chip->radio = 0;
+ return 0;
+}
+
+static int tvaudio_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+
+ chip->mode = 0; /* automatic */
+
+ /* For chips that provide getmode and setmode, and doesn't
+ automatically follows the stereo carrier, a kthread is
+ created to set the audio standard. In this case, when then
+ the video channel is changed, tvaudio starts on MONO mode.
+ After waiting for 2 seconds, the kernel thread is called,
+ to follow whatever audio standard is pointed by the
+ audio carrier.
+ */
+ if (chip->thread) {
+ desc->setmode(chip, V4L2_TUNER_MODE_MONO);
+ if (chip->prevmode != V4L2_TUNER_MODE_MONO)
+ chip->prevmode = -1; /* reset previous mode */
+ mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
+ }
+ return 0;
+}
+
+static int tvaudio_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVAUDIO, 0);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops tvaudio_core_ops = {
+ .g_chip_ident = tvaudio_g_chip_ident,
+ .queryctrl = tvaudio_queryctrl,
+ .g_ctrl = tvaudio_g_ctrl,
+ .s_ctrl = tvaudio_s_ctrl,
+ .s_std = tvaudio_s_std,
+};
+
+static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = {
+ .s_radio = tvaudio_s_radio,
+ .s_frequency = tvaudio_s_frequency,
+ .s_tuner = tvaudio_s_tuner,
+ .s_tuner = tvaudio_g_tuner,
+};
+
+static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = {
+ .s_routing = tvaudio_s_routing,
+};
+
+static const struct v4l2_subdev_ops tvaudio_ops = {
+ .core = &tvaudio_core_ops,
+ .tuner = &tvaudio_tuner_ops,
+ .audio = &tvaudio_audio_ops,
+};
+
+/* ----------------------------------------------------------------------- */
+
+