AVS driver operates with granular audio card division in mind.
Super-card approach (e.g.: I2S, DMIC and HDA DAIs combined) is
deprecated in favour of individual cards - one per each device. This
provides necessary dynamism, especially for configurations with number
of codecs present and makes it easier to survive auxiliary devices
failures - one card failing to probe does not prevent others from
succeeding.
All boards spawned by AVS are unregistered on ->remove(). This includes
dummy codecs such as DMIC.
As all machine boards found in sound/soc/intel/boards are irreversibly
tied to 'super-card' approach, new boards are going to be introduced.
This temporarily increases number of boards available under /intel
directory until skylake-driver becomes deprecated and removed.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>
Signed-off-by: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>
---
sound/soc/intel/avs/Makefile | 2 +-
sound/soc/intel/avs/avs.h | 3 +
sound/soc/intel/avs/board_selection.c | 459 ++++++++++++++++++++++++++
3 files changed, 463 insertions(+), 1 deletion(-)
create mode 100644 sound/soc/intel/avs/board_selection.c
diff --git a/sound/soc/intel/avs/Makefile b/sound/soc/intel/avs/Makefile
index 479b76b48433..e515ed7f18f9 100644
--- a/sound/soc/intel/avs/Makefile
+++ b/sound/soc/intel/avs/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
snd-soc-avs-objs := dsp.o ipc.o messages.o utils.o topology.o path.o \
- core.o loader.o pcm.o
+ core.o loader.o pcm.o board_selection.o
snd-soc-avs-objs += cldma.o
snd-soc-avs-objs += trace.o
diff --git a/sound/soc/intel/avs/avs.h b/sound/soc/intel/avs/avs.h
index dea9b93e3131..653cdecf9d83 100644
--- a/sound/soc/intel/avs/avs.h
+++ b/sound/soc/intel/avs/avs.h
@@ -288,6 +288,9 @@ int avs_ssp_platform_register(struct avs_dev *adev, const char *name,
unsigned long port_mask, unsigned long *tdms);
int avs_hda_platform_register(struct avs_dev *adev, const char *name);
+int avs_register_all_boards(struct avs_dev *adev);
+void avs_unregister_all_boards(struct avs_dev *adev);
+
/* Firmware tracing helpers */
unsigned int __kfifo_fromio_locked(struct kfifo *fifo, const void __iomem *src,
diff --git a/sound/soc/intel/avs/board_selection.c b/sound/soc/intel/avs/board_selection.c
new file mode 100644
index 000000000000..61b8894f0ad6
--- /dev/null
+++ b/sound/soc/intel/avs/board_selection.c
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2021 Intel Corporation. All rights reserved.
+//
+// Authors: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>
+// Amadeusz Slawinski <amadeuszx.slawinski@xxxxxxxxxxxxxxx>
+//
+
+#include <linux/acpi.h>
+#include <linux/debugfs.h>
+#include <linux/module.h>
+#include <linux/dmi.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <sound/hda_codec.h>
+#include <sound/hda_register.h>
+#include <sound/intel-nhlt.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-component.h>
+#include "avs.h"
+
+static bool ssp_loopback_test;
+module_param_named(ssp_loopback, ssp_loopback_test, bool, 0444);
+MODULE_PARM_DESC(ssp_loopback, "SSP loopback test 0=disabled, 1=enabled");
+
+static const struct dmi_system_id kbl_dmi_table[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Skylake Y LPDDR3 RVP3"),
+ },
+ },
+ {}
+};
+
+static const struct dmi_system_id kbl_r_dmi_table[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Kabylake R DDR4 RVP"),
+ },
+ },
+ {}
+};
+
+static struct snd_soc_acpi_mach *dmi_match_quirk(void *arg)
+{
+ struct snd_soc_acpi_mach *mach = arg;
+ const struct dmi_system_id *dmi_id;
+ struct dmi_system_id *dmi_table;
+
+ if (mach->quirk_data == NULL)
+ return mach;
+
+ dmi_table = (struct dmi_system_id *)mach->quirk_data;
+
+ dmi_id = dmi_first_match(dmi_table);
+ if (!dmi_id)
+ return NULL;
+
+ return mach;
+}
+
+#define AVS_SSP(x) (BIT(x))
+#define AVS_SSP_RANGE(a, b) (GENMASK(b, a))
+
+/* supported I2S board codec configurations */
+static struct snd_soc_acpi_mach avs_skl_i2s_machines[] = {
+ {
+ .id = "INT343A",
+ .drv_name = "avs_rt286",
+ .link_mask = AVS_SSP(0),
+ .tplg_filename = "skl-rt286-tplg.bin",
+ },
+ {
+ .id = "10508825",
+ .drv_name = "avs_nau8825",
+ .link_mask = AVS_SSP(1),
+ .tplg_filename = "skl-nau8825-tplg.bin",
+ },
+ {
+ .id = "INT343B",
+ .drv_name = "avs_ssm4567",
+ .link_mask = AVS_SSP(0),
+ .tplg_filename = "skl-ssm4567-tplg.bin",
+ },
+ {
+ .id = "MX98357A",
+ .drv_name = "avs_max98357a",
+ .link_mask = AVS_SSP(0),
+ .tplg_filename = "skl-max98357a-tplg.bin",
+ },
+ {},
+};
+
+static struct snd_soc_acpi_mach avs_kbl_i2s_machines[] = {
+ {
+ .id = "INT343A",
+ .drv_name = "avs_rt286",
+ .link_mask = AVS_SSP(0),
+ .quirk_data = &kbl_dmi_table,
+ .machine_quirk = dmi_match_quirk,
+ .tplg_filename = "kbl-rt286-tplg.bin",
+ },
+ {
+ .id = "INT343A",
+ .drv_name = "avs_rt298",
+ .link_mask = AVS_SSP(0),
+ .quirk_data = &kbl_r_dmi_table,
+ .machine_quirk = dmi_match_quirk,
+ .tplg_filename = "kblr-rt298-tplg.bin",
+ },
+ {},
+};
+
+static struct snd_soc_acpi_mach avs_apl_i2s_machines[] = {
+ {
+ .id = "INT343A",
+ .drv_name = "avs_rt298",
+ .link_mask = AVS_SSP(5),
+ .tplg_filename = "apl-rt298-tplg.bin",
+ },
+ {
+ .id = "INT34C3",
+ .drv_name = "avs_tdf8532",
+ .link_mask = AVS_SSP_RANGE(0, 5),
+ .pdata = (unsigned long[]){ 0, 0, 0x14, 0, 0, 0 }, /* SSP2 TDMs */
+ .tplg_filename = "apl-tdf8532-tplg.bin",
+ },
+ {
+ .id = "MX98357A",
+ .drv_name = "avs_max98357a",
+ .link_mask = AVS_SSP(5),
+ .tplg_filename = "apl-max98357a-tplg.bin",
+ },
+ {
+ .id = "DLGS7219",
+ .drv_name = "avs_da7219",
+ .link_mask = AVS_SSP(1),
+ .tplg_filename = "apl-da7219-tplg.bin",
+ },
+ {},
+};
+
+static struct snd_soc_acpi_mach avs_gml_i2s_machines[] = {
+ {
+ .id = "INT343A",
+ .drv_name = "avs_rt298",
+ .link_mask = AVS_SSP(2),
+ .tplg_filename = "gml-rt298-tplg.bin",
+ },
+ {},
+};
+
+static struct snd_soc_acpi_mach avs_test_i2s_machines[] = {
+ {
+ .drv_name = "avs_ssp_test",
+ .link_mask = AVS_SSP(0),
+ .tplg_filename = "avs_ssp_test.bin",
+ },
+ {
+ .drv_name = "avs_ssp_test",
+ .link_mask = AVS_SSP(1),
+ .tplg_filename = "avs_ssp_test.bin",
+ },
+ {
+ .drv_name = "avs_ssp_test",
+ .link_mask = AVS_SSP(2),
+ .tplg_filename = "avs_ssp_test.bin",
+ },
+ {
+ .drv_name = "avs_ssp_test",
+ .link_mask = AVS_SSP(3),
+ .tplg_filename = "avs_ssp_test.bin",
+ },
+ {
+ .drv_name = "avs_ssp_test",
+ .link_mask = AVS_SSP(4),
+ .tplg_filename = "avs_ssp_test.bin",
+ },
+ {
+ .drv_name = "avs_ssp_test",
+ .link_mask = AVS_SSP(5),
+ .tplg_filename = "avs_ssp_test.bin",
+ },
+ /* no NULL terminator, as we depend on ARRAY SIZE due to .id == NULL */
+};
+
+struct avs_acpi_boards {
+ int id;
+ struct snd_soc_acpi_mach *machs;
+};
+
+#define AVS_MACH_ENTRY(_id, _mach) \
+ { .id = (_id), .machs = (_mach), }
+
+/* supported I2S boards per platform */
+static const struct avs_acpi_boards i2s_boards[] = {
+ AVS_MACH_ENTRY(0x9d70, avs_skl_i2s_machines), /* SKL */
+ AVS_MACH_ENTRY(0x9d71, avs_kbl_i2s_machines), /* KBL */
+ AVS_MACH_ENTRY(0x5a98, avs_apl_i2s_machines), /* APL */
+ AVS_MACH_ENTRY(0x3198, avs_gml_i2s_machines), /* GML */
+ {},
+};
+
+static const struct avs_acpi_boards *avs_get_i2s_boards(struct avs_dev *adev)
+{
+ int id, i;
+
+ id = adev->base.pci->device;
+ for (i = 0; i < ARRAY_SIZE(i2s_boards); i++)
+ if (i2s_boards[i].id == id)
+ return &i2s_boards[i];
+ return NULL;
+}
+
+/* platform devices owned by AVS audio are removed with this hook */
+static void board_pdev_unregister(void *data)
+{
+ platform_device_unregister(data);
+}
+
+static int avs_register_dmic_board(struct avs_dev *adev)
+{
+ struct platform_device *codec, *board;
+ struct snd_soc_acpi_mach mach = {0};
+ int ret;
+
+ if (!adev->nhlt ||
+ !intel_nhlt_has_endpoint_type(adev->nhlt, NHLT_LINK_DMIC)) {
+ dev_dbg(adev->dev, "no DMIC endpoints present\n");
+ return 0;
+ }
+
+ codec = platform_device_register_simple("dmic-codec",
+ PLATFORM_DEVID_NONE, NULL, 0);
+ if (IS_ERR(codec)) {
+ dev_err(adev->dev, "dmic codec register failed\n");
+ return PTR_ERR(codec);
+ }
+
+ ret = devm_add_action(adev->dev, board_pdev_unregister, codec);
+ if (ret < 0) {
+ platform_device_unregister(codec);
+ return ret;
+ }
+
+ ret = avs_dmic_platform_register(adev, "dmic-platform");
+ if (ret < 0)
+ return ret;
+
+ mach.tplg_filename = "dmic-tplg.bin";
+ mach.mach_params.platform = "dmic-platform";
+
+ board = platform_device_register_data(NULL, "avs_dmic",
+ PLATFORM_DEVID_NONE,
+ (const void *)&mach, sizeof(mach));
+ if (IS_ERR(board)) {
+ dev_err(adev->dev, "dmic 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_i2s_board(struct avs_dev *adev,
+ struct snd_soc_acpi_mach *mach)
+{
+ struct platform_device *board;
+ int num_ssps;
+ char *name;
+ int ret;
+
+ num_ssps = adev->hw_cfg.i2s_caps.ctrl_count;
+ if (fls(mach->link_mask) > num_ssps) {
+ dev_err(adev->dev, "Platform supports %d SSPs but board %s requires SSP%ld\n",
+ num_ssps, mach->drv_name, __fls(mach->link_mask));
+ return -ENODEV;
+ }
+
+ name = devm_kasprintf(adev->dev, GFP_KERNEL,
+ "%s.%d-platform", mach->drv_name, mach->link_mask);
+ if (!name)
+ return -ENOMEM;
+
+ ret = avs_ssp_platform_register(adev, name, mach->link_mask, mach->pdata);
+ if (ret < 0)
+ return ret;
+
+ mach->mach_params.platform = name;
+
+ board = platform_device_register_data(NULL, mach->drv_name,
+ mach->link_mask,
+ (const void *)mach, sizeof(*mach));
+ if (IS_ERR(board)) {
+ dev_err(adev->dev, "ssp 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_i2s_boards(struct avs_dev *adev)
+{
+ const struct avs_acpi_boards *boards;
+ struct snd_soc_acpi_mach *mach;
+ int ret;
+
+ if (!adev->nhlt || !intel_nhlt_has_endpoint_type(adev->nhlt, NHLT_LINK_SSP)) {
+ dev_dbg(adev->dev, "no I2S endpoints present\n");
+ return 0;
+ }
+
+ if (ssp_loopback_test) {
+ int i, num_ssps;
+
+ num_ssps = adev->hw_cfg.i2s_caps.ctrl_count;
+ /* constrain just in case FW says there can be more SSPs than possible */
+ num_ssps = min_t(int, ARRAY_SIZE(avs_test_i2s_machines),
+ num_ssps);
+
+ mach = avs_test_i2s_machines;
+
+ for (i = 0; i < num_ssps; i++) {
+ ret = avs_register_i2s_board(adev, &mach[i]);
+ if (ret < 0)
+ dev_warn(adev->dev, "register i2s %s failed: %d\n",
+ mach->drv_name, ret);
+ }
+ return 0;
+ }
+
+ boards = avs_get_i2s_boards(adev);
+ if (!boards) {
+ dev_dbg(adev->dev, "no I2S endpoints supported\n");
+ return 0;
+ }
+
+ for (mach = boards->machs; mach->id[0]; mach++) {
+ if (!acpi_dev_present(mach->id, NULL, -1))
+ continue;
+
+ if (mach->machine_quirk)
+ if (!mach->machine_quirk(mach))
+ continue;
+
+ ret = avs_register_i2s_board(adev, mach);
+ if (ret < 0)
+ dev_warn(adev->dev, "register i2s %s failed: %d\n",
+ mach->drv_name, ret);
+ }
+
+ return 0;
+}
+
+static int avs_register_hda_board(struct avs_dev *adev, struct hda_codec *codec)
+{
+ struct snd_soc_acpi_mach mach = {0};
+ struct platform_device *board;
+ struct hdac_device *hdev = &codec->core;
+ char *pname;
+ int ret, id;
+
+ pname = devm_kasprintf(adev->dev, GFP_KERNEL, "%s-platform",
+ dev_name(&hdev->dev));
+ if (!pname)
+ return -ENOMEM;
+
+ ret = avs_hda_platform_register(adev, pname);
+ if (ret < 0)
+ return ret;
+
+ mach.pdata = codec;
+ mach.mach_params.platform = pname;
+ mach.tplg_filename = devm_kasprintf(adev->dev, GFP_KERNEL,
+ "hda-%08x-tplg.bin", hdev->vendor_id);
+ if (!mach.tplg_filename)
+ return -ENOMEM;
+
+ id = adev->base.core.idx * HDA_MAX_CODECS + hdev->addr;
+ board = platform_device_register_data(NULL, "avs_hdaudio", id,
+ (const void *)&mach, sizeof(mach));
+ if (IS_ERR(board)) {
+ dev_err(adev->dev, "hda 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_hda_boards(struct avs_dev *adev)
+{
+ struct hdac_bus *bus = &adev->base.core;
+ struct hdac_device *hdev;
+ int ret;
+
+ if (!bus->num_codecs) {
+ dev_dbg(adev->dev, "no HDA endpoints present\n");
+ return 0;
+ }
+
+ list_for_each_entry(hdev, &bus->codec_list, list) {
+ struct hda_codec *codec;
+
+ codec = dev_to_hda_codec(&hdev->dev);
+
+ ret = avs_register_hda_board(adev, codec);
+ if (ret < 0)
+ dev_warn(adev->dev, "register hda-%08x failed: %d\n",
+ codec->core.vendor_id, ret);
+ }
+
+ return 0;
+}
+
+int avs_register_all_boards(struct avs_dev *adev)
+{
+ int ret;
+
+ ret = avs_register_dmic_board(adev);
+ if (ret < 0)
+ dev_warn(adev->dev, "enumerate DMIC endpoints failed: %d\n",
+ ret);
+
+ ret = avs_register_i2s_boards(adev);
+ if (ret < 0)
+ dev_warn(adev->dev, "enumerate I2S endpoints failed: %d\n",
+ ret);
+
+ ret = avs_register_hda_boards(adev);
+ if (ret < 0)
+ dev_warn(adev->dev, "enumerate HDA endpoints failed: %d\n",
+ ret);
+
+ return 0;
+}
+
+void avs_unregister_all_boards(struct avs_dev *adev)
+{
+ snd_soc_unregister_component(adev->dev);
+}
--
2.25.1
