diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-04-27 19:02:30 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-05-03 16:24:00 +0300 |
| commit | 8a2d6ae1f737fd22eaeadd0dc32b85c92f239025 (patch) | |
| tree | 738c1528fea69391a67b27648e976488c046532a /sound/x86/intel_hdmi_audio.h | |
| parent | b4eb0d522fcba0ee819f955fd3279ff4682b8b33 (diff) | |
ALSA: x86: Register multiple PCM devices for the LPE audio card
Now that everything is in place let's register a PCM device for
each port of the display engine. This will make it possible to
actually output audio to multiple displays at the same time. And
it avoids modesets on unrelated displays from clobbering up the
ELD and whatnot for the display currently doing the playback.
v2: Add a PCM per port instead of per pipe
v3: Fix off by one error with port numbers (Pierre-Louis)
Fix .notify_audio_lpe() prototype (Pierre-Louis)
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-12-ville.syrjala@linux.intel.com
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/x86/intel_hdmi_audio.h')
| -rw-r--r-- | sound/x86/intel_hdmi_audio.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sound/x86/intel_hdmi_audio.h b/sound/x86/intel_hdmi_audio.h index 2725964ebc46..0d91bb5dbab7 100644 --- a/sound/x86/intel_hdmi_audio.h +++ b/sound/x86/intel_hdmi_audio.h @@ -32,7 +32,6 @@ #include "intel_hdmi_lpe_audio.h" -#define PCM_INDEX 0 #define MAX_PB_STREAMS 1 #define MAX_CAP_STREAMS 0 #define BYTES_PER_WORD 0x4 @@ -112,6 +111,8 @@ struct snd_intelhad { struct snd_pcm_chmap *chmap; int tmds_clock_speed; int link_rate; + int port; /* fixed */ + int pipe; /* can change dynamically */ /* ring buffer (BD) position index */ unsigned int bd_head; @@ -123,7 +124,6 @@ struct snd_intelhad { unsigned int period_bytes; /* PCM period size in bytes */ /* internal stuff */ - unsigned int had_config_offset; union aud_cfg aud_config; /* AUD_CONFIG reg value cache */ struct work_struct hdmi_audio_wq; struct mutex mutex; /* for protecting chmap and eld */ @@ -138,8 +138,9 @@ struct snd_intelhad_card { /* internal stuff */ int irq; void __iomem *mmio_start; + int num_pipes; int num_ports; - struct snd_intelhad pcm_ctx[3]; + struct snd_intelhad pcm_ctx[3]; /* one for each port */ }; #endif /* _INTEL_HDMI_AUDIO_ */ |