On Sat, 2010-07-10 at 20:02 +0200, Sven Barth wrote:
> This adds support for the AUX_PLL in cx2583x chips which is available in
> those although the audio part of the chip is not.
> The AUX_PLL is used at least by Terratec in their Grabster AV400 device.
>
> Signed-off-by: Sven Barth <pascaldra...@googlemail.com>
> Acked-By: Mike Isely <is...@pobox.com>
Reviewed-by: Andy Walls <awa...@md.metrocast.net>
Acked-by: Andy Walls <awa...@md.metrocast.net>
>From my recollection of our previous emails, this patch looks right and
is the right approach.
Regards,
Andy
> diff -aur v4l-src/linux/drivers/media/video/cx25840//cx25840-audio.c
> v4l-build/linux/drivers/media/video/cx25840//cx25840-audio.c
> --- v4l-src/linux/drivers/media/video/cx25840//cx25840-audio.c
> 2009-10-18 21:08:26.497700904 +0200
> +++ v4l-build/linux/drivers/media/video/cx25840//cx25840-audio.c
> 2010-07-09 22:35:31.067718241 +0200
> @@ -438,41 +438,45 @@
> {
> struct cx25840_state *state = to_state(i2c_get_clientdata(client));
>
> - /* assert soft reset */
> - cx25840_and_or(client, 0x810, ~0x1, 0x01);
> -
> - /* stop microcontroller */
> - cx25840_and_or(client, 0x803, ~0x10, 0);
> -
> - /* Mute everything to prevent the PFFT! */
> - cx25840_write(client, 0x8d3, 0x1f);
> -
> - if (state->aud_input == CX25840_AUDIO_SERIAL) {
> - /* Set Path1 to Serial Audio Input */
> - cx25840_write4(client, 0x8d0, 0x01011012);
> -
> - /* The microcontroller should not be started for the
> - * non-tuner inputs: autodetection is specific for
> - * TV audio. */
> - } else {
> - /* Set Path1 to Analog Demod Main Channel */
> - cx25840_write4(client, 0x8d0, 0x1f063870);
> - }
> + if (!is_cx2583x(state)) {
> + /* assert soft reset */
> + cx25840_and_or(client, 0x810, ~0x1, 0x01);
> +
> + /* stop microcontroller */
> + cx25840_and_or(client, 0x803, ~0x10, 0);
> +
> + /* Mute everything to prevent the PFFT! */
> + cx25840_write(client, 0x8d3, 0x1f);
> +
> + if (state->aud_input == CX25840_AUDIO_SERIAL) {
> + /* Set Path1 to Serial Audio Input */
> + cx25840_write4(client, 0x8d0, 0x01011012);
> +
> + /* The microcontroller should not be started for the
> + * non-tuner inputs: autodetection is specific for
> + * TV audio. */
> + } else {
> + /* Set Path1 to Analog Demod Main Channel */
> + cx25840_write4(client, 0x8d0, 0x1f063870);
> + }
> + }
>
> set_audclk_freq(client, state->audclk_freq);
>
> - if (state->aud_input != CX25840_AUDIO_SERIAL) {
> - /* When the microcontroller detects the
> - * audio format, it will unmute the lines */
> - cx25840_and_or(client, 0x803, ~0x10, 0x10);
> - }
> -
> - /* deassert soft reset */
> - cx25840_and_or(client, 0x810, ~0x1, 0x00);
> -
> - /* Ensure the controller is running when we exit */
> - if (is_cx2388x(state) || is_cx231xx(state))
> - cx25840_and_or(client, 0x803, ~0x10, 0x10);
> + if (!is_cx2583x(state)) {
> + if (state->aud_input != CX25840_AUDIO_SERIAL) {
> + /* When the microcontroller detects the
> + * audio format, it will unmute the lines */
> + cx25840_and_or(client, 0x803, ~0x10, 0x10);
> + }
> +
> + /* deassert soft reset */
> + cx25840_and_or(client, 0x810, ~0x1, 0x00);
> +
> + /* Ensure the controller is running when we exit */
> + if (is_cx2388x(state) || is_cx231xx(state))
> + cx25840_and_or(client, 0x803, ~0x10, 0x10);
> + }
> }
>
> static int get_volume(struct i2c_client *client)
> diff -aur v4l-src/linux/drivers/media/video/cx25840//cx25840-core.c
> v4l-build/linux/drivers/media/video/cx25840//cx25840-core.c
> --- v4l-src/linux/drivers/media/video/cx25840//cx25840-core.c 2010-06-26
> 17:56:26.238525747 +0200
> +++ v4l-build/linux/drivers/media/video/cx25840//cx25840-core.c
> 2010-07-09 23:28:36.784067005 +0200
> @@ -691,6 +691,11 @@
> }
> cx25840_and_or(client, 0x401, ~0x60, 0);
> cx25840_and_or(client, 0x401, ~0x60, 0x60);
> +
> + /* Don't write into audio registers on cx2583x chips */
> + if (is_cx2583x(state))
> + return;
> +
> cx25840_and_or(client, 0x810, ~0x01, 1);
>
> if (state->radio) {
> @@ -849,10 +854,8 @@
>
> state->vid_input = vid_input;
> state->aud_input = aud_input;
> - if (!is_cx2583x(state)) {
> - cx25840_audio_set_path(client);
> - input_change(client);
> - }
> + cx25840_audio_set_path(client);
> + input_change(client);
>
> if (is_cx2388x(state)) {
> /* Audio channel 1 src : Parallel 1 */
> @@ -1482,8 +1485,6 @@
> struct cx25840_state *state = to_state(sd);
> struct i2c_client *client = v4l2_get_subdevdata(sd);
>
> - if (is_cx2583x(state))
> - return -EINVAL;
> return set_input(client, state->vid_input, input);
> }
>
> @@ -1492,8 +1493,7 @@
> struct cx25840_state *state = to_state(sd);
> struct i2c_client *client = v4l2_get_subdevdata(sd);
>
> - if (!is_cx2583x(state))
> - input_change(client);
> + input_change(client);
> return 0;
> }
>
> --
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