diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/wm8775.c | 59 |
1 files changed, 37 insertions, 22 deletions
diff --git a/drivers/media/video/wm8775.c b/drivers/media/video/wm8775.c index 1933cd2..a1b6a42 100644 --- a/drivers/media/video/wm8775.c +++ b/drivers/media/video/wm8775.c @@ -87,38 +87,53 @@ static int wm8775_command(struct i2c_client *client, unsigned int cmd, void *arg) { struct wm8775_state *state = i2c_get_clientdata(client); - int *input = arg; + struct v4l2_audio *input = arg; + struct v4l2_control *ctrl = arg; switch (cmd) { - case AUDC_SET_INPUT: + case VIDIOC_S_AUDIO: + /* There are 4 inputs and one output. Zero or more inputs + are multiplexed together to the output. Hence there are + 16 combinations. + If only one input is active (the normal case) then the + input values 1, 2, 4 or 8 should be used. */ + if (input->index > 15) { + wm8775_err("Invalid input %d.\n", input->index); + return -EINVAL; + } + state->input = input->index; + if (state->muted) + break; wm8775_write(client, R21, 0x0c0); wm8775_write(client, R14, 0x1d4); wm8775_write(client, R15, 0x1d4); + wm8775_write(client, R21, 0x100 + state->input); + break; - if (*input == AUDIO_RADIO) { - wm8775_write(client, R21, 0x108); - state->input = 8; - state->muted = 0; - break; - } - if (*input == AUDIO_MUTE) { - state->muted = 1; - break; - } - if (*input == AUDIO_UNMUTE) { + case VIDIOC_G_AUDIO: + memset(input, 0, sizeof(*input)); + input->index = state->input; + break; + + case VIDIOC_G_CTRL: + if (ctrl->id != V4L2_CID_AUDIO_MUTE) + return -EINVAL; + ctrl->value = state->muted; + break; + + case VIDIOC_S_CTRL: + if (ctrl->id != V4L2_CID_AUDIO_MUTE) + return -EINVAL; + state->muted = ctrl->value; + wm8775_write(client, R21, 0x0c0); + wm8775_write(client, R14, 0x1d4); + wm8775_write(client, R15, 0x1d4); + if (!state->muted) wm8775_write(client, R21, 0x100 + state->input); - state->muted = 0; - break; - } - /* All other inputs... */ - wm8775_write(client, R21, 0x102); - state->input = 2; - state->muted = 0; break; case VIDIOC_LOG_STATUS: - wm8775_info("Input: %s%s\n", - state->input == 8 ? "radio" : "default", + wm8775_info("Input: %d%s\n", state->input, state->muted ? " (muted)" : ""); break; |