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-rw-r--r--sound/soc/sof/sof-pci-dev.c346
1 files changed, 346 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c
new file mode 100644
index 000000000..99cc272e3
--- /dev/null
+++ b/sound/soc/sof/sof-pci-dev.c
@@ -0,0 +1,346 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2018 Intel Corporation. All rights reserved.
+//
+// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//
+
+#include <linux/firmware.h>
+#include <linux/dmi.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/platform_data/x86/soc.h>
+#include <linux/pm_runtime.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-acpi-intel-match.h>
+#include <sound/sof.h>
+#include "ops.h"
+#include "sof-pci-dev.h"
+
+static char *fw_path;
+module_param(fw_path, charp, 0444);
+MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
+
+static char *fw_filename;
+module_param(fw_filename, charp, 0444);
+MODULE_PARM_DESC(fw_filename, "alternate filename for SOF firmware.");
+
+static char *tplg_path;
+module_param(tplg_path, charp, 0444);
+MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
+
+static char *tplg_filename;
+module_param(tplg_filename, charp, 0444);
+MODULE_PARM_DESC(tplg_filename, "alternate filename for SOF topology.");
+
+static int sof_pci_debug;
+module_param_named(sof_pci_debug, sof_pci_debug, int, 0444);
+MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)");
+
+static int sof_pci_ipc_type = -1;
+module_param_named(ipc_type, sof_pci_ipc_type, int, 0444);
+MODULE_PARM_DESC(ipc_type, "SOF IPC type (0): SOF, (1) Intel CAVS");
+
+static const char *sof_dmi_override_tplg_name;
+static bool sof_dmi_use_community_key;
+
+#define SOF_PCI_DISABLE_PM_RUNTIME BIT(0)
+
+static int sof_tplg_cb(const struct dmi_system_id *id)
+{
+ sof_dmi_override_tplg_name = id->driver_data;
+ return 1;
+}
+
+static const struct dmi_system_id sof_tplg_table[] = {
+ {
+ .callback = sof_tplg_cb,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Volteer"),
+ DMI_MATCH(DMI_OEM_STRING, "AUDIO-MAX98373_ALC5682I_I2S_UP4"),
+ },
+ .driver_data = "sof-tgl-rt5682-ssp0-max98373-ssp2.tplg",
+ },
+ {
+ .callback = sof_tplg_cb,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Alder Lake Client Platform"),
+ DMI_MATCH(DMI_OEM_STRING, "AUDIO-ADL_MAX98373_ALC5682I_I2S"),
+ },
+ .driver_data = "sof-adl-rt5682-ssp0-max98373-ssp2.tplg",
+ },
+ {
+ .callback = sof_tplg_cb,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Brya"),
+ DMI_MATCH(DMI_OEM_STRING, "AUDIO-MAX98390_ALC5682I_I2S"),
+ },
+ .driver_data = "sof-adl-max98390-ssp2-rt5682-ssp0.tplg",
+ },
+ {
+ .callback = sof_tplg_cb,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Brya"),
+ DMI_MATCH(DMI_OEM_STRING, "AUDIO_AMP-MAX98360_ALC5682VS_I2S_2WAY"),
+ },
+ .driver_data = "sof-adl-max98360a-rt5682-2way.tplg",
+ },
+ {
+ .callback = sof_tplg_cb,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Brya"),
+ DMI_MATCH(DMI_OEM_STRING, "AUDIO-AUDIO_MAX98357_ALC5682I_I2S_2WAY"),
+ },
+ .driver_data = "sof-adl-max98357a-rt5682-2way.tplg",
+ },
+ {
+ .callback = sof_tplg_cb,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Brya"),
+ DMI_MATCH(DMI_OEM_STRING, "AUDIO-MAX98360_ALC5682I_I2S_AMP_SSP2"),
+ },
+ .driver_data = "sof-adl-max98357a-rt5682.tplg",
+ },
+ {}
+};
+
+/* all Up boards use the community key */
+static int up_use_community_key(const struct dmi_system_id *id)
+{
+ sof_dmi_use_community_key = true;
+ return 1;
+}
+
+/*
+ * For ApolloLake Chromebooks we want to force the use of the Intel production key.
+ * All newer platforms use the community key
+ */
+static int chromebook_use_community_key(const struct dmi_system_id *id)
+{
+ if (!soc_intel_is_apl())
+ sof_dmi_use_community_key = true;
+ return 1;
+}
+
+static const struct dmi_system_id community_key_platforms[] = {
+ {
+ .ident = "Up boards",
+ .callback = up_use_community_key,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
+ }
+ },
+ {
+ .ident = "Google Chromebooks",
+ .callback = chromebook_use_community_key,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_FAMILY, "Google"),
+ }
+ },
+ {
+ .ident = "Google firmware",
+ .callback = chromebook_use_community_key,
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VERSION, "Google"),
+ }
+ },
+ {},
+};
+
+const struct dev_pm_ops sof_pci_pm = {
+ .prepare = snd_sof_prepare,
+ .complete = snd_sof_complete,
+ SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
+ SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
+ snd_sof_runtime_idle)
+};
+EXPORT_SYMBOL_NS(sof_pci_pm, SND_SOC_SOF_PCI_DEV);
+
+static void sof_pci_probe_complete(struct device *dev)
+{
+ dev_dbg(dev, "Completing SOF PCI probe");
+
+ if (sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME)
+ return;
+
+ /* allow runtime_pm */
+ pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
+ pm_runtime_use_autosuspend(dev);
+
+ /*
+ * runtime pm for pci device is "forbidden" by default.
+ * so call pm_runtime_allow() to enable it.
+ */
+ pm_runtime_allow(dev);
+
+ /* mark last_busy for pm_runtime to make sure not suspend immediately */
+ pm_runtime_mark_last_busy(dev);
+
+ /* follow recommendation in pci-driver.c to decrement usage counter */
+ pm_runtime_put_noidle(dev);
+}
+
+int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+{
+ struct device *dev = &pci->dev;
+ const struct sof_dev_desc *desc =
+ (const struct sof_dev_desc *)pci_id->driver_data;
+ struct snd_sof_pdata *sof_pdata;
+ int ret;
+
+ dev_dbg(&pci->dev, "PCI DSP detected");
+
+ if (!desc) {
+ dev_err(dev, "error: no matching PCI descriptor\n");
+ return -ENODEV;
+ }
+
+ if (!desc->ops) {
+ dev_err(dev, "error: no matching PCI descriptor ops\n");
+ return -ENODEV;
+ }
+
+ sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
+ if (!sof_pdata)
+ return -ENOMEM;
+
+ ret = pcim_enable_device(pci);
+ if (ret < 0)
+ return ret;
+
+ ret = pci_request_regions(pci, "Audio DSP");
+ if (ret < 0)
+ return ret;
+
+ sof_pdata->name = pci_name(pci);
+
+ /* PCI defines a vendor ID of 0xFFFF as invalid. */
+ if (pci->subsystem_vendor != 0xFFFF) {
+ sof_pdata->subsystem_vendor = pci->subsystem_vendor;
+ sof_pdata->subsystem_device = pci->subsystem_device;
+ sof_pdata->subsystem_id_set = true;
+ }
+
+ sof_pdata->desc = desc;
+ sof_pdata->dev = dev;
+
+ sof_pdata->ipc_type = desc->ipc_default;
+
+ if (sof_pci_ipc_type < 0) {
+ sof_pdata->ipc_type = desc->ipc_default;
+ } else {
+ dev_info(dev, "overriding default IPC %d to requested %d\n",
+ desc->ipc_default, sof_pci_ipc_type);
+ if (sof_pci_ipc_type >= SOF_IPC_TYPE_COUNT) {
+ dev_err(dev, "invalid request value %d\n", sof_pci_ipc_type);
+ ret = -EINVAL;
+ goto out;
+ }
+ if (!(BIT(sof_pci_ipc_type) & desc->ipc_supported_mask)) {
+ dev_err(dev, "invalid request value %d, supported mask is %#x\n",
+ sof_pci_ipc_type, desc->ipc_supported_mask);
+ ret = -EINVAL;
+ goto out;
+ }
+ sof_pdata->ipc_type = sof_pci_ipc_type;
+ }
+
+ if (fw_filename) {
+ sof_pdata->fw_filename = fw_filename;
+
+ dev_dbg(dev, "Module parameter used, changed fw filename to %s\n",
+ sof_pdata->fw_filename);
+ } else {
+ sof_pdata->fw_filename = desc->default_fw_filename[sof_pdata->ipc_type];
+ }
+
+ /*
+ * for platforms using the SOF community key, change the
+ * default path automatically to pick the right files from the
+ * linux-firmware tree. This can be overridden with the
+ * fw_path kernel parameter, e.g. for developers.
+ */
+
+ /* alternate fw and tplg filenames ? */
+ if (fw_path) {
+ sof_pdata->fw_filename_prefix = fw_path;
+
+ dev_dbg(dev,
+ "Module parameter used, changed fw path to %s\n",
+ sof_pdata->fw_filename_prefix);
+
+ } else if (dmi_check_system(community_key_platforms) && sof_dmi_use_community_key) {
+ sof_pdata->fw_filename_prefix =
+ devm_kasprintf(dev, GFP_KERNEL, "%s/%s",
+ sof_pdata->desc->default_fw_path[sof_pdata->ipc_type],
+ "community");
+
+ dev_dbg(dev,
+ "Platform uses community key, changed fw path to %s\n",
+ sof_pdata->fw_filename_prefix);
+ } else {
+ sof_pdata->fw_filename_prefix =
+ sof_pdata->desc->default_fw_path[sof_pdata->ipc_type];
+ }
+
+ if (tplg_path)
+ sof_pdata->tplg_filename_prefix = tplg_path;
+ else
+ sof_pdata->tplg_filename_prefix =
+ sof_pdata->desc->default_tplg_path[sof_pdata->ipc_type];
+
+ /*
+ * the topology filename will be provided in the machine descriptor, unless
+ * it is overridden by a module parameter or DMI quirk.
+ */
+ if (tplg_filename) {
+ sof_pdata->tplg_filename = tplg_filename;
+
+ dev_dbg(dev, "Module parameter used, changed tplg filename to %s\n",
+ sof_pdata->tplg_filename);
+ } else {
+ dmi_check_system(sof_tplg_table);
+ if (sof_dmi_override_tplg_name)
+ sof_pdata->tplg_filename = sof_dmi_override_tplg_name;
+ }
+
+ /* set callback to be called on successful device probe to enable runtime_pm */
+ sof_pdata->sof_probe_complete = sof_pci_probe_complete;
+
+ /* call sof helper for DSP hardware probe */
+ ret = snd_sof_device_probe(dev, sof_pdata);
+
+out:
+ if (ret)
+ pci_release_regions(pci);
+
+ return ret;
+}
+EXPORT_SYMBOL_NS(sof_pci_probe, SND_SOC_SOF_PCI_DEV);
+
+void sof_pci_remove(struct pci_dev *pci)
+{
+ /* call sof helper for DSP hardware remove */
+ snd_sof_device_remove(&pci->dev);
+
+ /* follow recommendation in pci-driver.c to increment usage counter */
+ if (snd_sof_device_probe_completed(&pci->dev) &&
+ !(sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME))
+ pm_runtime_get_noresume(&pci->dev);
+
+ /* release pci regions and disable device */
+ pci_release_regions(pci);
+}
+EXPORT_SYMBOL_NS(sof_pci_remove, SND_SOC_SOF_PCI_DEV);
+
+void sof_pci_shutdown(struct pci_dev *pci)
+{
+ snd_sof_device_shutdown(&pci->dev);
+}
+EXPORT_SYMBOL_NS(sof_pci_shutdown, SND_SOC_SOF_PCI_DEV);
+
+MODULE_LICENSE("Dual BSD/GPL");