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129 lines
3.4 KiB
129 lines
3.4 KiB
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) |
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// |
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// This file is provided under a dual BSD/GPLv2 license. When using or |
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// redistributing this file, you may do so under either license. |
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// |
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// Copyright(c) 2018 Intel Corporation. All rights reserved. |
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// |
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// Author: Liam Girdwood <[email protected]> |
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// |
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#include <linux/acpi.h> |
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#include <linux/firmware.h> |
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#include <linux/module.h> |
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#include <linux/pm_runtime.h> |
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#include <sound/soc-acpi.h> |
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#include <sound/soc-acpi-intel-match.h> |
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#include <sound/sof.h> |
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#include "../intel/common/soc-intel-quirks.h" |
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#include "ops.h" |
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#include "sof-acpi-dev.h" |
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/* platform specific devices */ |
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#include "intel/shim.h" |
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static char *fw_path; |
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module_param(fw_path, charp, 0444); |
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MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware."); |
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static char *tplg_path; |
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module_param(tplg_path, charp, 0444); |
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MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology."); |
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static int sof_acpi_debug; |
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module_param_named(sof_acpi_debug, sof_acpi_debug, int, 0444); |
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MODULE_PARM_DESC(sof_acpi_debug, "SOF ACPI debug options (0x0 all off)"); |
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#define SOF_ACPI_DISABLE_PM_RUNTIME BIT(0) |
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const struct dev_pm_ops sof_acpi_pm = { |
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SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume) |
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SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume, |
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snd_sof_runtime_idle) |
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}; |
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EXPORT_SYMBOL_NS(sof_acpi_pm, SND_SOC_SOF_ACPI_DEV); |
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static void sof_acpi_probe_complete(struct device *dev) |
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{ |
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dev_dbg(dev, "Completing SOF ACPI probe"); |
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if (sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME) |
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return; |
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/* allow runtime_pm */ |
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pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); |
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pm_runtime_use_autosuspend(dev); |
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pm_runtime_enable(dev); |
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} |
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int sof_acpi_probe(struct platform_device *pdev, const struct sof_dev_desc *desc) |
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{ |
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struct device *dev = &pdev->dev; |
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struct snd_sof_pdata *sof_pdata; |
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const struct snd_sof_dsp_ops *ops; |
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int ret; |
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dev_dbg(dev, "ACPI DSP detected"); |
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sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); |
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if (!sof_pdata) |
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return -ENOMEM; |
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/* get ops for platform */ |
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ops = desc->ops; |
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if (!ops) { |
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dev_err(dev, "error: no matching ACPI descriptor ops\n"); |
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return -ENODEV; |
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} |
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sof_pdata->desc = desc; |
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sof_pdata->dev = &pdev->dev; |
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sof_pdata->fw_filename = desc->default_fw_filename; |
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/* alternate fw and tplg filenames ? */ |
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if (fw_path) |
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sof_pdata->fw_filename_prefix = fw_path; |
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else |
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sof_pdata->fw_filename_prefix = |
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sof_pdata->desc->default_fw_path; |
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if (tplg_path) |
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sof_pdata->tplg_filename_prefix = tplg_path; |
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else |
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sof_pdata->tplg_filename_prefix = |
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sof_pdata->desc->default_tplg_path; |
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#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) |
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/* set callback to enable runtime_pm */ |
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sof_pdata->sof_probe_complete = sof_acpi_probe_complete; |
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#endif |
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/* call sof helper for DSP hardware probe */ |
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ret = snd_sof_device_probe(dev, sof_pdata); |
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if (ret) { |
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dev_err(dev, "error: failed to probe DSP hardware!\n"); |
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return ret; |
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} |
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#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) |
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sof_acpi_probe_complete(dev); |
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#endif |
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return ret; |
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} |
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EXPORT_SYMBOL_NS(sof_acpi_probe, SND_SOC_SOF_ACPI_DEV); |
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int sof_acpi_remove(struct platform_device *pdev) |
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{ |
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struct device *dev = &pdev->dev; |
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if (!(sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME)) |
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pm_runtime_disable(dev); |
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/* call sof helper for DSP hardware remove */ |
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snd_sof_device_remove(dev); |
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return 0; |
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} |
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EXPORT_SYMBOL_NS(sof_acpi_remove, SND_SOC_SOF_ACPI_DEV); |
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MODULE_LICENSE("Dual BSD/GPL");
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