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| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2017-01-31 14:16:52 -0600 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-02-01 16:22:24 +0100 |
| commit | 964ca8083c0239b5a729ed08c9f50b6c31ab3a93 (patch) | |
| tree | 03cec32622f5e64e8f3edb52d04bcd3245cbb1a8 /sound/x86/intel_hdmi_audio.h | |
| parent | f95e29b92190607c66dc5c96b7e0de9c332062c2 (diff) | |
| download | lwn-964ca8083c0239b5a729ed08c9f50b6c31ab3a93.tar.gz lwn-964ca8083c0239b5a729ed08c9f50b6c31ab3a93.zip | |
ALSA: x86: intel_hdmi: add definitions and logic for DP audio
Imported from legacy patches
Note: the new code doesn't assume a modified ELD but
an explicit notification that DP is present. It appears
that the i915 code does change the ELD so we could use
the ELD-based tests to check for DP audio
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/x86/intel_hdmi_audio.h')
| -rw-r--r-- | sound/x86/intel_hdmi_audio.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sound/x86/intel_hdmi_audio.h b/sound/x86/intel_hdmi_audio.h index d2015ec84843..034b3873ffa1 100644 --- a/sound/x86/intel_hdmi_audio.h +++ b/sound/x86/intel_hdmi_audio.h @@ -44,7 +44,8 @@ #define MAX_CAP_STREAMS 0 #define HDMI_AUDIO_DRIVER "hdmi-audio" -#define INFO_FRAME_WORD1 0x000a0184 +#define HDMI_INFO_FRAME_WORD1 0x000a0184 +#define DP_INFO_FRAME_WORD1 0x00441b84 #define FIFO_THRESHOLD 0xFE #define DMA_FIFO_THRESHOLD 0x7 #define BYTES_PER_WORD 0x4 @@ -134,6 +135,7 @@ struct snd_intelhad { struct ring_buf_info buf_info[HAD_NUM_OF_RING_BUFS]; struct pcm_stream_info stream_info; union otm_hdmi_eld_t eeld; + bool dp_output; enum intel_had_aud_buf_type curr_buf; int valid_buf_cnt; unsigned int aes_bits; @@ -156,8 +158,8 @@ struct had_ops { void (*reset_audio)(u8 reset); int (*prog_n)(u32 aud_samp_freq, u32 *n_param, struct snd_intelhad *intelhaddata); - void (*prog_cts)(u32 aud_samp_freq, u32 tmds, u32 n_param, - struct snd_intelhad *intelhaddata); + void (*prog_cts)(u32 aud_samp_freq, u32 tmds, u32 link_rate, + u32 n_param, struct snd_intelhad *intelhaddata); int (*audio_ctrl)(struct snd_pcm_substream *substream, struct snd_intelhad *intelhaddata); void (*prog_dip)(struct snd_pcm_substream *substream, |