#include <linux/i2c-id.h>
#include <linux/videodev.h>
#include <media/v4l2-common.h>
+#include <media/v4l2-chip-ident.h>
MODULE_DESCRIPTION("wm8775 driver");
MODULE_AUTHOR("Ulf Eklund, Hans Verkuil");
void *arg)
{
struct wm8775_state *state = i2c_get_clientdata(client);
- struct v4l2_audio *input = arg;
+ struct v4l2_routing *route = arg;
struct v4l2_control *ctrl = arg;
switch (cmd) {
- case VIDIOC_S_AUDIO:
+ case VIDIOC_INT_G_AUDIO_ROUTING:
+ route->input = state->input;
+ route->output = 0;
+ break;
+
+ case VIDIOC_INT_S_AUDIO_ROUTING:
/* 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) {
- v4l_err(client, "Invalid input %d.\n", input->index);
+ if (route->input > 15) {
+ v4l_err(client, "Invalid input %d.\n", route->input);
return -EINVAL;
}
- state->input = input->index;
+ state->input = route->input;
if (state->muted)
break;
wm8775_write(client, R21, 0x0c0);
wm8775_write(client, R21, 0x100 + state->input);
break;
- 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;
wm8775_write(client, R21, 0x100 + state->input);
break;
+ case VIDIOC_G_CHIP_IDENT:
+ return v4l2_chip_ident_i2c_client(client, arg, V4L2_IDENT_WM8775, 0);
+
case VIDIOC_LOG_STATUS:
v4l_info(client, "Input: %d%s\n", state->input,
state->muted ? " (muted)" : "");