@@ -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",
@@ -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
@@ -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
new file mode 100644
@@ -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");
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