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232 lines
5.9 KiB
232 lines
5.9 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/firmware.h> |
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#include <linux/dmi.h> |
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#include <linux/module.h> |
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#include <linux/pci.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 "ops.h" |
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#include "sof-pci-dev.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_pci_debug; |
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module_param_named(sof_pci_debug, sof_pci_debug, int, 0444); |
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MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)"); |
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static const char *sof_override_tplg_name; |
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#define SOF_PCI_DISABLE_PM_RUNTIME BIT(0) |
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static int sof_tplg_cb(const struct dmi_system_id *id) |
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{ |
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sof_override_tplg_name = id->driver_data; |
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return 1; |
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} |
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static const struct dmi_system_id sof_tplg_table[] = { |
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{ |
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.callback = sof_tplg_cb, |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Volteer"), |
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DMI_MATCH(DMI_OEM_STRING, "AUDIO-MAX98373_ALC5682I_I2S_UP4"), |
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}, |
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.driver_data = "sof-tgl-rt5682-ssp0-max98373-ssp2.tplg", |
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}, |
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{} |
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}; |
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static const struct dmi_system_id community_key_platforms[] = { |
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{ |
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.ident = "Up Squared", |
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.matches = { |
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DMI_MATCH(DMI_SYS_VENDOR, "AAEON"), |
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DMI_MATCH(DMI_BOARD_NAME, "UP-APL01"), |
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} |
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}, |
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{ |
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.ident = "Up Extreme", |
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.matches = { |
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DMI_MATCH(DMI_SYS_VENDOR, "AAEON"), |
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DMI_MATCH(DMI_BOARD_NAME, "UP-WHL01"), |
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} |
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}, |
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{ |
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.ident = "Google Chromebooks", |
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.matches = { |
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DMI_MATCH(DMI_SYS_VENDOR, "Google"), |
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} |
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}, |
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{}, |
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}; |
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const struct dev_pm_ops sof_pci_pm = { |
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.prepare = snd_sof_prepare, |
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.complete = snd_sof_complete, |
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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_pci_pm, SND_SOC_SOF_PCI_DEV); |
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static void sof_pci_probe_complete(struct device *dev) |
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{ |
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dev_dbg(dev, "Completing SOF PCI probe"); |
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if (sof_pci_debug & SOF_PCI_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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/* |
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* runtime pm for pci device is "forbidden" by default. |
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* so call pm_runtime_allow() to enable it. |
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*/ |
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pm_runtime_allow(dev); |
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/* mark last_busy for pm_runtime to make sure not suspend immediately */ |
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pm_runtime_mark_last_busy(dev); |
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/* follow recommendation in pci-driver.c to decrement usage counter */ |
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pm_runtime_put_noidle(dev); |
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} |
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int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) |
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{ |
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struct device *dev = &pci->dev; |
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const struct sof_dev_desc *desc = |
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(const struct sof_dev_desc *)pci_id->driver_data; |
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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(&pci->dev, "PCI DSP detected"); |
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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 PCI descriptor ops\n"); |
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return -ENODEV; |
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} |
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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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ret = pcim_enable_device(pci); |
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if (ret < 0) |
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return ret; |
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ret = pci_request_regions(pci, "Audio DSP"); |
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if (ret < 0) |
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return ret; |
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sof_pdata->name = pci_name(pci); |
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sof_pdata->desc = (struct sof_dev_desc *)pci_id->driver_data; |
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sof_pdata->dev = dev; |
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sof_pdata->fw_filename = desc->default_fw_filename; |
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/* |
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* for platforms using the SOF community key, change the |
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* default path automatically to pick the right files from the |
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* linux-firmware tree. This can be overridden with the |
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* fw_path kernel parameter, e.g. for developers. |
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*/ |
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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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dev_dbg(dev, |
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"Module parameter used, changed fw path to %s\n", |
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sof_pdata->fw_filename_prefix); |
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} else if (dmi_check_system(community_key_platforms)) { |
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sof_pdata->fw_filename_prefix = |
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devm_kasprintf(dev, GFP_KERNEL, "%s/%s", |
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sof_pdata->desc->default_fw_path, |
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"community"); |
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dev_dbg(dev, |
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"Platform uses community key, changed fw path to %s\n", |
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sof_pdata->fw_filename_prefix); |
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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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} |
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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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dmi_check_system(sof_tplg_table); |
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if (sof_override_tplg_name) |
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sof_pdata->tplg_filename = sof_override_tplg_name; |
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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_pci_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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goto release_regions; |
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} |
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#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) |
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sof_pci_probe_complete(dev); |
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#endif |
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return ret; |
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release_regions: |
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pci_release_regions(pci); |
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return ret; |
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} |
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EXPORT_SYMBOL_NS(sof_pci_probe, SND_SOC_SOF_PCI_DEV); |
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void sof_pci_remove(struct pci_dev *pci) |
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{ |
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/* call sof helper for DSP hardware remove */ |
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snd_sof_device_remove(&pci->dev); |
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/* follow recommendation in pci-driver.c to increment usage counter */ |
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if (snd_sof_device_probe_completed(&pci->dev) && |
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!(sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME)) |
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pm_runtime_get_noresume(&pci->dev); |
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/* release pci regions and disable device */ |
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pci_release_regions(pci); |
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} |
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EXPORT_SYMBOL_NS(sof_pci_remove, SND_SOC_SOF_PCI_DEV); |
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void sof_pci_shutdown(struct pci_dev *pci) |
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{ |
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snd_sof_device_shutdown(&pci->dev); |
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} |
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EXPORT_SYMBOL_NS(sof_pci_shutdown, SND_SOC_SOF_PCI_DEV); |
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MODULE_LICENSE("Dual BSD/GPL");
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