[Sound-open-firmware] [PATCH 2/3] topology: m4: Add two macros for one direction PCM

[Xiuli Pan]

From: Pan Xiuli <xiuli.pan at linux.intel.com>

We may need to generate capture only or playback only PCMs.
Add these macros to help generate them.

Signed-off-by: Pan Xiuli <xiuli.pan at linux.intel.com>
---
 topology/m4/local.m4 | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/topology/m4/local.m4 b/topology/m4/local.m4
index c0ffef2..ad72a11 100644
--- a/topology/m4/local.m4
+++ b/topology/m4/local.m4
@@ -476,6 +476,44 @@ define(`COMP_SAMPLE_SIZE',
 dnl COMP_BUFFER_SIZE( num_periods, sample_size, channels, fmames)
 define(`COMP_BUFFER_SIZE', `eval(`$1 * $2 * $3 * $4')')
 
+dnl PCM_PLAYBACK_ADD(name, pipeline, pcm_id, dai_id, playback)
+define(`PCM_PLAYBACK_ADD',
+`SectionPCM.STR($1) {'
+`'
+`	index STR($2)'
+`'
+`	# used for binding to the PCM'
+`	id STR($3)'
+`'
+`	dai.STR($1 $3) {'
+`		id STR($4)'
+`	}'
+`'
+`	pcm."playback" {'
+`'
+`		capabilities STR($5)'
+`	}'
+`}')
+
+dnl PCM_CAPTURE_ADD(name, pipeline, pcm_id, dai_id, capture)
+define(`PCM_CAPTURE_ADD',
+`SectionPCM.STR($1) {'
+`'
+`	index STR($2)'
+`'
+`	# used for binding to the PCM'
+`	id STR($3)'
+`'
+`	dai.STR($1 $3) {'
+`		id STR($4)'
+`	}'
+`'
+`	pcm."capture" {'
+`'
+`		capabilities STR($5)'
+`	}'
+`}')
+
 dnl PCM_DUPLEX_ADD(name, pipeline, pcm_id, dai_id, playback, capture)
 define(`PCM_DUPLEX_ADD',
 `SectionPCM.STR($1) {'
-- 
2.7.4