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audioreach: MILOS-Fairphone-Gen6: working speaker playback + WCD9378 capture
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Rework the WIP Fairphone (Gen. 6) topology into the state tested on the
phone (postmarketOS, self-built 7.1.2 milos kernel):

- Rename the backend to SEN_MI2S_RX to match the DAI name the kernel
  exposes; with SENARY_MI2S_RX the tplg backend never binds.
- Route playback through a new i2s-playback-mfc device subgraph that
  inserts an MFC between the logger and the I2S endpoint: the frontend
  stream is S16 while the AW88261 boost converter needs 32-bit slots
  (3.072 MHz BCLK), so the DSP must convert formats on the way out.
- Add the capture path for the WCD9378 mics: MultiMedia2 capture stream
  subgraph, TX_CODEC_DMA_TX_3 device subgraph (RXTX CDC-DMA TX3), and
  the capture mixer/routes.

Note: the CMake entry emits qcom/milos/MILOS-Fairphone-Gen6-tplg.bin,
but the kernel requests qcom/<driver_name>/<card_name>-tplg.bin, i.e.
"qcom/milos/Fairphone (Gen. 6)-tplg.bin" - install it under that name
(CMake target names cannot contain the spaces/parens of the card name).

Assisted-by: Claude:claude-fable-5
Signed-off-by: Jorijn van der Graaf <jorijnvdgraaf@catcrafts.net>
This commit is contained in:
Jorijn van der Graaf 2026-07-16 15:49:39 +02:00
commit 76e10781fc
2 changed files with 127 additions and 5 deletions
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62
MILOS-Fairphone-Gen6.m4
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@ -1,19 +1,71 @@
# Copyright, Linaro Ltd, 2026
# SPDX-License-Identifier: BSD-3-Clause
#
# Fairphone (Gen. 6) — SM7635 "Milos"
# Speaker path: 2x Awinic AW88261 on Senary MI2S (LPASS LPI I2S2).
# The DSP addresses this interface as the WSA LPAIF block's primary I2S
# (downstream PAL backend "MI2S-LPAIF_WSA-RX-PRIMARY"), hence
# LPAIF_INTF_TYPE_WSA + I2S_INTF_TYPE_PRIMARY below.
#
include(`audioreach/audioreach.m4')
include(`audioreach/stream-subgraph.m4')
include(`audioreach/device-subgraph.m4')
include(`util/route.m4')
include(`util/mixer.m4')
include(`audioreach/tokens.m4')
dnl
dnl Senary MI2S BE DAI id (dt-bindings qcom,q6dsp-lpass-ports.h, v7.2+);
dnl not yet in audioreach.m4
define(`SENARY_MI2S_RX', `147') dnl
dnl
#
# Stream SubGraph for MultiMedia1 Playback
#
# ______________________________________________
# | Sub Graph 1 |
# | [WR_SH] -> [PCM DEC] -> [PCM CONV] -> [LOG] |- Kcontrol
# |______________________________________________|
#
dnl Playback MultiMedia1
STREAM_SG_PCM_ADD(audioreach/subgraph-stream-vol-playback.m4, FRONTEND_DAI_MULTIMEDIA1,
`S16_LE', 48000, 48000, 2, 2,
0x00004001, 0x00004001, 0x00006001, `110000')
dnl Senary MI2S Playback
DEVICE_SG_ADD(audioreach/subgraph-device-i2s-playback.m4, `Senary', SENARY_MI2S_RX,
dnl
dnl Capture MultiMedia2 (WCD9378 mics)
STREAM_SG_PCM_ADD(audioreach/subgraph-stream-capture.m4, FRONTEND_DAI_MULTIMEDIA2,
`S16_LE', 48000, 48000, 1, 2,
0x00004002, 0x00004002, 0x00006020, `110000')
dnl
#
# Device SubGraph for Senary MI2S RX Backend (stereo AW88261)
#
# ___________________
# | Sub Graph 2 |
# Mixer -| [LOG] -> [I2S EP] |
# |___________________|
#
dnl Senary MI2S Playback (32-bit slots: AW88261 boost needs 3.072 MHz BCLK)
DEVICE_SG_ADD(audioreach/subgraph-device-i2s-playback-mfc.m4, `Senary', SENARY_MI2S_RX,
`S32_LE', 48000, 48000, 2, 2,
LPAIF_INTF_TYPE_WSA, I2S_INTF_TYPE_PRIMARY, SD_LINE_IDX_I2S_SD0, DATA_FORMAT_FIXED_POINT,
0x00004005, 0x00004005, 0x00006050, `SENARY_MI2S_RX')
0x00004006, 0x00004006, 0x00006060, `SEN_MI2S_RX')
STREAM_DEVICE_PLAYBACK_MIXER(SENARY_MI2S_RX, ``SENARY_MI2S_RX'', ``MultiMedia1'')
STREAM_DEVICE_PLAYBACK_ROUTE(SENARY_MI2S_RX, ``SENARY_MI2S_RX Audio Mixer'', ``MultiMedia1, stream0.logger1'')
#
# Device SubGraph for the WCD9378 TX (mic capture) Backend
#
# _____________________
# | Sub Graph 3 |
# Mixer -| [CDC-DMA EP] -> [LOG] |
# |_____________________|
#
dnl WCDTX Capture (TX macro decimators via RXTX LPAIF TX3 CDC-DMA)
DEVICE_SG_ADD(audioreach/subgraph-device-codec-dma-capture.m4, `TX_CODEC_DMA_TX_3', TX_CODEC_DMA_TX_3,
`S16_LE', 48000, 48000, 1, 2,
LPAIF_INTF_TYPE_RXTX, CODEC_INTF_IDX_TX3, 0, DATA_FORMAT_FIXED_POINT,
0x00004008, 0x00004008, 0x00006130)
STREAM_DEVICE_PLAYBACK_MIXER(SENARY_MI2S_RX, ``SEN_MI2S_RX'', ``MultiMedia1'')
STREAM_DEVICE_PLAYBACK_ROUTE(SENARY_MI2S_RX, ``SEN_MI2S_RX Audio Mixer'', ``MultiMedia1, stream0.logger1'')
STREAM_DEVICE_CAPTURE_MIXER(FRONTEND_DAI_MULTIMEDIA2, ``TX_CODEC_DMA_TX_3'')
STREAM_DEVICE_CAPTURE_ROUTE(FRONTEND_DAI_MULTIMEDIA2, ``MultiMedia2 Mixer'', ``TX_CODEC_DMA_TX_3, device120.logger1'')

70
audioreach/subgraph-device-i2s-playback-mfc.m4 Normal file
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@ -0,0 +1,70 @@
# Copyright, Linaro Ltd, 2026
# SPDX-License-Identifier: BSD-3-Clause
include(`audioreach/audioreach.m4') dnl
include(`util/pcm.m4') dnl
include(`audioreach/subgraph.m4') dnl
include(`audioreach/container.m4') dnl
include(`audioreach/module_mfc.m4') dnl
include(`audioreach/module_log.m4') dnl
include(`audioreach/module_i2s.m4') dnl
include(`util/mixer.m4') dnl
dnl
#
# SubGraph for Device Backend (with MFC for stream->device format conversion)
#
# _____________________________
# | Sub Graph |
# | [LOG] -> [MFC] -> [I2S EP] |
# |_____________________________|
undefine(`LOG_MODULE_IID') dnl
undefine(`MFC_MODULE_IID') dnl
undefine(`I2S_MODULE_IID') dnl
undefine(`SG_INDEX') dnl
undefine(`CONTAINER_INDEX') dnl
undefine(`MOD_INDEX') dnl
undefine(`DEVICE_PERF_MODE') dnl
undefine(`DEVICE_DIRECTION') dnl
undefine(`CONT_SENARIO_ID') dnl
undefine(`CONT_CAP') dnl
undefine(`CONT_POSITION') dnl
undefine(`DEVICE_DOMAIN_ID') dnl
undefine(`CONT_STACK_SIZE') dnl
define(`DEVICE_PERF_MODE', APM_SG_PERF_MODE_LOW_LATENCY) dnl'
define(`DEVICE_DIRECTION', APM_SUB_GRAPH_DIRECTION_TX) dnl'
define(`CONT_SENARIO_ID', APM_SUB_GRAPH_SID_AUDIO_PLAYBACK) dnl'
define(`CONT_CAP', `ifelse(LPASS_VER_COMPAT, 110000, APM_CONTAINER_TYPE_ID_GC, APM_CONTAINER_CAP_ID_EP)') dnl'
define(`CONT_POSITION', APM_CONT_GRAPH_POS_STREAM)dnl'
define(`DEVICE_DOMAIN_ID', APM_PROC_DOMAIN_ID_ADSP) dnl'
define(`CONT_STACK_SIZE', 8192) dnl'
dnl
define(`LOG_MODULE_IID', MOD_IID_START) dnl
define(`MFC_MODULE_IID', eval(MOD_IID_START + 1)) dnl
define(`I2S_MODULE_IID', eval(MOD_IID_START + 2)) dnl
define(`SG_INDEX', 1) dnl
define(`CONTAINER_INDEX', 1) dnl
define(`MOD_INDEX', 1) dnl
dnl
dnl DEVICE_PLAYBACK_ROUTE(stream-index, dai-id, mixer-prefix)
define(`DEVICE_PLAYBACK_ROUTE',
`'
`SectionGraph."NAME_PREFIX.$1 $3 Graph" {'
` index STR($1)'
` lines ['
` "NAME_PREFIX.logger$1, , $3 Audio Mixer"'
` "NAME_PREFIX.mfc$1, , NAME_PREFIX.logger$1"'
` "NAME_PREFIX.i2s_rx$1, , NAME_PREFIX.mfc$1"'
` "$2 MI2S Playback, , NAME_PREFIX.i2s_rx$1"'
` ]'
`}')
AR_SUBGRAPH(SG_INDEX, DEVICE_DAI_ID, SG_IID_START, DEVICE_PERF_MODE, DEVICE_DIRECTION, CONT_SENARIO_ID)
AR_CONTAINER(CONTAINER_INDEX, CONT_IID_START, CONT_CAP, CONT_STACK_SIZE, CONT_POSITION, DEVICE_DOMAIN_ID)
AR_MODULE_LOG(MOD_INDEX, SG_INDEX, CONTAINER_INDEX, LOG_MODULE_IID, 1, 1, 1, 2, 0x000019ab, 1, 0, MFC_MODULE_IID)
AR_MODULE_MFC(MOD_INDEX, SG_INDEX, CONTAINER_INDEX, MFC_MODULE_IID, 1, 1, 1, 2, I2S_MODULE_IID)
AR_MODULE_I2S_RX(MOD_INDEX, SG_INDEX, CONTAINER_INDEX, I2S_MODULE_IID, 1, 0, 1, 0, DEVICE_INTF_TYPE, DEVICE_INTF_INDEX, DEVICE_DATA_FORMAT, DEVICE_SD_LINE_IDX, `DEVICE_NAME', NONE_IID)
DEVICE_PLAYBACK_ROUTE(MOD_INDEX, `DEVICE_NAME', `MIXER_PREFIX')