[RFC SOF 1/2] topology: Add sof-byt-codec-tdm4.m4 file

[Hans de Goede <hdegoede@redhat.com>]

Some BYT/CHT boards (mostly Cherry Trail) use TDM 4 slots 24 bit as
wire format to the codec, rather then standard I2S 2 channel 24 bit.

Add a new m4 file for this. This is a copy of sof-byt-codec.m4 with
the following changes:

@@ -1,4 +1,4 @@
-`# Topology for generic' PLATFORM `board with' CODEC `on SSP' SSP_NUM
+`# Topology for generic' PLATFORM `board with' CODEC `on SSP' SSP_NUM `using TDM 4 slots 24 bit'

 # Include topology builder
 include(`utils.m4')
@@ -97,8 +97,8 @@
 # BE configurations - overrides config in ACPI if present
 #
 DAI_CONFIG(SSP, SSP_NUM, 0, SSP2-Codec,
-	   SSP_CONFIG(I2S, SSP_CLOCK(mclk, 19200000, codec_mclk_in),
-		      SSP_CLOCK(bclk, 2400000, codec_slave),
+	   SSP_CONFIG(DSP_B, SSP_CLOCK(mclk, 19200000, codec_mclk_in),
+		      SSP_CLOCK(bclk, 4800000, codec_slave),
 		      SSP_CLOCK(fsync, 48000, codec_slave),
-		      SSP_TDM(2, 25, 3, 3),
+		      SSP_TDM(4, 25, 3, 3),
 		      SSP_CONFIG_DATA(SSP, SSP_NUM, 24)))

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 tools/topology/sof-byt-codec-tdm4.m4 | 104 +++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 tools/topology/sof-byt-codec-tdm4.m4

diff --git a/tools/topology/sof-byt-codec-tdm4.m4 b/tools/topology/sof-byt-codec-tdm4.m4
new file mode 100644
index 000000000..dabf8342b
--- /dev/null
+++ b/tools/topology/sof-byt-codec-tdm4.m4
@@ -0,0 +1,104 @@
+`# Topology for generic' PLATFORM `board with' CODEC `on SSP' SSP_NUM `using TDM 4 slots 24 bit'
+
+# Include topology builder
+include(`utils.m4')
+include(`dai.m4')
+include(`pipeline.m4')
+include(`ssp.m4')
+
+# Include TLV library
+include(`common/tlv.m4')
+
+# Include Token library
+include(`sof/tokens.m4')
+
+# Include DSP configuration
+include(`platform/intel/'PLATFORM`.m4')
+
+#
+# Define the pipelines
+#
+# PCM0 -----> volume -------v
+#                            low latency mixer ----> volume ---->  SSP2
+# PCM1 -----> volume -------^
+# PCM0 <---- Volume <---- SSP2
+#
+
+# Low Latency capture pipeline 2 on PCM 0 using max 2 channels of s32le.
+# 1000us deadline on core 0 with priority 0
+PIPELINE_PCM_ADD(sof/pipe-low-latency-capture.m4,
+	2, 0, 2, s32le,
+	1000, 0, 0,
+	48000, 48000, 48000)
+
+#
+# DAI configuration
+#
+# SSP port 2 is our only pipeline DAI
+#
+
+# playback DAI is SSP2 using 2 periods
+# Buffers use s24le format, 1000us deadline on core 0 with priority 1
+# this defines pipeline 1. The 'NOT_USED_IGNORED' is due to dependencies
+# and is adjusted later with an explicit dapm line.
+DAI_ADD(sof/pipe-mixer-dai-playback.m4,
+	1, SSP, SSP_NUM, SSP2-Codec,
+	NOT_USED_IGNORED, 2, s24le,
+	1000, 1, 0, SCHEDULE_TIME_DOMAIN_DMA,
+	2, 48000)
+
+# PCM Playback pipeline 3 on PCM 0 using max 2 channels of s32le.
+# 1000us deadline on core 0 with priority 0
+# this is connected to pipeline DAI 1
+PIPELINE_PCM_ADD(sof/pipe-host-volume-playback.m4,
+	3, 0, 2, s32le,
+	1000, 0, 0,
+	48000, 48000, 48000,
+	SCHEDULE_TIME_DOMAIN_DMA,
+	PIPELINE_PLAYBACK_SCHED_COMP_1)
+
+# PCM Playback pipeline 4 on PCM 1 using max 2 channels of s32le.
+# 10ms deadline on core 0 with priority 0
+# this is connected to pipeline DAI 1
+PIPELINE_PCM_ADD(sof/pipe-host-volume-playback.m4,
+	4, 1, 2, s32le,
+	5000, 0, 0,
+	48000, 48000, 48000,
+	SCHEDULE_TIME_DOMAIN_DMA,
+	PIPELINE_PLAYBACK_SCHED_COMP_1)
+
+# Connect pipelines together
+SectionGraph."PIPE_NAME" {
+	index "0"
+
+	lines [
+		# PCM pipeline 3 to DAI pipeline 1
+		dapm(PIPELINE_MIXER_1, PIPELINE_SOURCE_3)
+		# PCM pipeline 4 to DAI pipeline 1
+		dapm(PIPELINE_MIXER_1, PIPELINE_SOURCE_4)
+
+	]
+}
+
+# capture DAI is SSP2 using 2 periods
+# Buffers use s24le format, 1000us deadline on core 0 with priority 0
+# this is part of pipeline 2
+DAI_ADD(sof/pipe-dai-capture.m4,
+	2, SSP, SSP_NUM, SSP2-Codec,
+	PIPELINE_SINK_2, 2, s24le,
+	1000, 0, 0, SCHEDULE_TIME_DOMAIN_DMA)
+
+
+# PCM definitions
+PCM_DUPLEX_ADD(PCM, 0, PIPELINE_PCM_3, PIPELINE_PCM_2)
+PCM_PLAYBACK_ADD(PCM Deep Buffer, 1, PIPELINE_PCM_4)
+
+#
+# BE configurations - overrides config in ACPI if present
+#
+DAI_CONFIG(SSP, SSP_NUM, 0, SSP2-Codec,
+	   SSP_CONFIG(DSP_B, SSP_CLOCK(mclk, 19200000, codec_mclk_in),
+		      SSP_CLOCK(bclk, 4800000, codec_slave),
+		      SSP_CLOCK(fsync, 48000, codec_slave),
+		      SSP_TDM(4, 25, 3, 3),
+		      SSP_CONFIG_DATA(SSP, SSP_NUM, 24)))
-- 
2.28.0