Stub machine board driver with no custom DAPM routes and single FE DAI link for userspace to interact with.
Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com --- sound/soc/intel/avs/board_selection.c | 33 ++++++++++++++ sound/soc/intel/avs/boards/Kconfig | 8 ++++ sound/soc/intel/avs/boards/Makefile | 2 + sound/soc/intel/avs/boards/probe.c | 64 +++++++++++++++++++++++++++ 4 files changed, 107 insertions(+) create mode 100644 sound/soc/intel/avs/boards/probe.c
diff --git a/sound/soc/intel/avs/board_selection.c b/sound/soc/intel/avs/board_selection.c index 02cc1ce8f5f5..b2823c2107f7 100644 --- a/sound/soc/intel/avs/board_selection.c +++ b/sound/soc/intel/avs/board_selection.c @@ -291,6 +291,33 @@ static void board_pdev_unregister(void *data) platform_device_unregister(data); }
+static int __maybe_unused avs_register_probe_board(struct avs_dev *adev) +{ + struct platform_device *board; + struct snd_soc_acpi_mach mach = {{0}}; + int ret; + + ret = avs_probe_platform_register(adev, "probe-platform"); + if (ret < 0) + return ret; + + mach.mach_params.platform = "probe-platform"; + + board = platform_device_register_data(NULL, "avs_probe_mb", PLATFORM_DEVID_NONE, + (const void *)&mach, sizeof(mach)); + if (IS_ERR(board)) { + dev_err(adev->dev, "probe board register failed\n"); + return PTR_ERR(board); + } + + ret = devm_add_action(adev->dev, board_pdev_unregister, board); + if (ret < 0) { + platform_device_unregister(board); + return ret; + } + return 0; +} + static int avs_register_dmic_board(struct avs_dev *adev) { struct platform_device *codec, *board; @@ -500,6 +527,12 @@ int avs_register_all_boards(struct avs_dev *adev) { int ret;
+#ifdef CONFIG_DEBUG_FS + ret = avs_register_probe_board(adev); + if (ret < 0) + dev_warn(adev->dev, "enumerate PROBE endpoints failed: %d\n", ret); +#endif + ret = avs_register_dmic_board(adev); if (ret < 0) dev_warn(adev->dev, "enumerate DMIC endpoints failed: %d\n", diff --git a/sound/soc/intel/avs/boards/Kconfig b/sound/soc/intel/avs/boards/Kconfig index 9bd40fdd9028..e4c230efe8d7 100644 --- a/sound/soc/intel/avs/boards/Kconfig +++ b/sound/soc/intel/avs/boards/Kconfig @@ -77,6 +77,14 @@ config SND_SOC_INTEL_AVS_MACH_NAU8825 Say Y or m if you have such a device. This is a recommended option. If unsure select "N".
+config SND_SOC_INTEL_AVS_MACH_PROBE + tristate "Probing (data) board" + depends on DEBUG_FS + select SND_HWDEP + help + This adds support for data probing board which can be used to + gather data from runtime stream over compress operations. + config SND_SOC_INTEL_AVS_MACH_RT274 tristate "rt274 in I2S mode" depends on I2C diff --git a/sound/soc/intel/avs/boards/Makefile b/sound/soc/intel/avs/boards/Makefile index 4d70b8d09ce5..b81343420370 100644 --- a/sound/soc/intel/avs/boards/Makefile +++ b/sound/soc/intel/avs/boards/Makefile @@ -8,6 +8,7 @@ snd-soc-avs-max98927-objs := max98927.o snd-soc-avs-max98357a-objs := max98357a.o snd-soc-avs-max98373-objs := max98373.o snd-soc-avs-nau8825-objs := nau8825.o +snd-soc-avs-probe-objs := probe.o snd-soc-avs-rt274-objs := rt274.o snd-soc-avs-rt286-objs := rt286.o snd-soc-avs-rt298-objs := rt298.o @@ -22,6 +23,7 @@ obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_MAX98927) += snd-soc-avs-max98927.o obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_MAX98357A) += snd-soc-avs-max98357a.o obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_MAX98373) += snd-soc-avs-max98373.o obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_NAU8825) += snd-soc-avs-nau8825.o +obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_PROBE) += snd-soc-avs-probe.o obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT274) += snd-soc-avs-rt274.o obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT286) += snd-soc-avs-rt286.o obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT298) += snd-soc-avs-rt298.o diff --git a/sound/soc/intel/avs/boards/probe.c b/sound/soc/intel/avs/boards/probe.c new file mode 100644 index 000000000000..411acaee74f9 --- /dev/null +++ b/sound/soc/intel/avs/boards/probe.c @@ -0,0 +1,64 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright(c) 2021-2022 Intel Corporation. All rights reserved. +// +// Authors: Cezary Rojewski cezary.rojewski@intel.com +// Amadeusz Slawinski amadeuszx.slawinski@linux.intel.com +// + +#include <linux/device.h> +#include <linux/module.h> +#include <sound/soc.h> +#include <sound/soc-acpi.h> + +SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY())); +SND_SOC_DAILINK_DEF(probe_cp, DAILINK_COMP_ARRAY(COMP_CPU("Probe Extraction CPU DAI"))); +SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("probe-platform"))); + +static struct snd_soc_dai_link probe_mb_dai_links[] = { + { + .name = "Compress Probe Capture", + .nonatomic = 1, + SND_SOC_DAILINK_REG(probe_cp, dummy, platform), + }, +}; + +static int avs_probe_mb_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct snd_soc_acpi_mach *mach; + struct snd_soc_card *card; + int ret; + + mach = dev_get_platdata(dev); + + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); + if (!card) + return -ENOMEM; + + card->name = "avs_probe_mb"; + card->dev = dev; + card->owner = THIS_MODULE; + card->dai_link = probe_mb_dai_links; + card->num_links = ARRAY_SIZE(probe_mb_dai_links); + card->fully_routed = true; + + ret = snd_soc_fixup_dai_links_platform_name(card, mach->mach_params.platform); + if (ret) + return ret; + + return devm_snd_soc_register_card(dev, card); +} + +static struct platform_driver avs_probe_mb_driver = { + .probe = avs_probe_mb_probe, + .driver = { + .name = "avs_probe_mb", + .pm = &snd_soc_pm_ops, + }, +}; + +module_platform_driver(avs_probe_mb_driver); + +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:avs_probe_mb");