From: Liam Girdwood liam.r.girdwood@linux.intel.com
Add support for PCI based DSP devices.
Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/sof-pci-dev.c | 361 ++++++++++++++++++++++++++++++++++++ 1 file changed, 361 insertions(+) create mode 100644 sound/soc/sof/sof-pci-dev.c
diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c new file mode 100644 index 000000000000..449ff9cbc793 --- /dev/null +++ b/sound/soc/sof/sof-pci-dev.c @@ -0,0 +1,361 @@ +// SPDX-License-Identifier: (GPL-2.0 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/module.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" + +/* platform specific devices */ +#include "intel/shim.h" +#include "intel/hda.h" + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE) +static struct sof_dev_desc bxt_desc = { + .machines = snd_soc_acpi_intel_bxt_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = -1, + .resindex_imr_base = -1, + .irqindex_host_ipc = -1, + .resindex_dma_base = -1, + .nocodec_fw_filename = "intel/sof-apl.ri", + .nocodec_tplg_filename = "intel/sof-apl-nocodec.tplg" +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE) +static struct sof_dev_desc glk_desc = { + .machines = snd_soc_acpi_intel_glk_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = -1, + .resindex_imr_base = -1, + .irqindex_host_ipc = -1, + .resindex_dma_base = -1, + .nocodec_fw_filename = "intel/sof-glk.ri", + .nocodec_tplg_filename = "intel/sof-glk-nocodec.tplg" +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) +static struct snd_soc_acpi_mach sof_byt_machines[] = { + { + .id = "INT343A", + .drv_name = "edison", + .sof_fw_filename = "intel/sof-byt.ri", + .sof_tplg_filename = "intel/sof-byt.tplg", + .asoc_plat_name = "baytrail-pcm-audio", + }, + {} +}; + +static const struct sof_dev_desc byt_desc = { + .machines = sof_byt_machines, + .resindex_lpe_base = 3, /* IRAM, but subtract IRAM offset */ + .resindex_pcicfg_base = -1, + .resindex_imr_base = 0, + .irqindex_host_ipc = -1, + .resindex_dma_base = -1, + .nocodec_fw_filename = "intel/sof-byt.ri", + .nocodec_tplg_filename = "intel/sof-byt.tplg" +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE) +static const struct sof_dev_desc cnl_desc = { + .machines = snd_soc_acpi_intel_cnl_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = -1, + .resindex_imr_base = -1, + .irqindex_host_ipc = -1, + .resindex_dma_base = -1, + .nocodec_fw_filename = "intel/sof-cnl.ri", + .nocodec_tplg_filename = "intel/sof-cnl.tplg" +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_SKYLAKE) +static struct sof_dev_desc skl_desc = { + .machines = snd_soc_acpi_intel_skl_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = -1, + .resindex_imr_base = -1, + .irqindex_host_ipc = -1, + .resindex_dma_base = -1, + .nocodec_fw_filename = "intel/sof-skl.ri", + .nocodec_tplg_filename = "intel/sof-skl-nocodec.tplg" +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_KABYLAKE) +static struct sof_dev_desc kbl_desc = { + .machines = snd_soc_acpi_intel_kbl_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = -1, + .resindex_imr_base = -1, + .irqindex_host_ipc = -1, + .resindex_dma_base = -1, + .nocodec_fw_filename = "intel/sof-kbl.ri", + .nocodec_tplg_filename = "intel/sof-kbl-nocodec.tplg" +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE) +static const struct sof_dev_desc icl_desc = { + .machines = snd_soc_acpi_intel_icl_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = -1, + .resindex_imr_base = -1, + .irqindex_host_ipc = -1, + .resindex_dma_base = -1, + .nocodec_fw_filename = "intel/sof-icl.ri", + .nocodec_tplg_filename = "intel/sof-icl-nocodec.tplg" +}; +#endif + +static const struct dev_pm_ops sof_pci_pm = { + SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume) + SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume, + NULL) + .suspend_late = snd_sof_suspend_late, + .prepare = snd_sof_prepare, + +}; + +static const struct sof_ops_table pci_mach_ops[] = { +#if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE) + {&bxt_desc, &sof_apl_ops}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE) + {&glk_desc, &sof_apl_ops}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) + {&byt_desc, &sof_byt_ops}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE) + {&cnl_desc, &sof_cnl_ops}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_SKYLAKE) + {&skl_desc, &sof_skl_ops}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_KABYLAKE) + {&kbl_desc, &sof_skl_ops}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE) + {&icl_desc, &sof_cnl_ops}, +#endif +}; + +static 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_soc_acpi_mach *mach; + struct snd_sof_pdata *sof_pdata; + struct sof_platform_priv *priv; + struct snd_sof_dsp_ops *ops; + int ret = 0; + + dev_dbg(&pci->dev, "PCI DSP detected"); + + /* get ops for platform */ + ops = sof_get_ops(desc, pci_mach_ops, ARRAY_SIZE(pci_mach_ops)); + if (!ops) { + dev_err(dev, "error: no matching PCI descriptor ops\n"); + return -ENODEV; + } + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + pci_set_drvdata(pci, priv); + + 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; + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE) + /* force nocodec mode */ + dev_warn(dev, "Force to use nocodec mode\n"); + mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL); + if (!mach) { + ret = -ENOMEM; + goto release_regions; + } + ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops); + if (ret < 0) + goto release_regions; +#else + /* find machine */ + mach = snd_soc_acpi_find_machine(desc->machines); +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + if (!mach) { + dev_warn(dev, "No matching ASoC machine driver found - falling back to HDA codec\n"); + mach = snd_soc_acpi_intel_hda_machines; + mach->sof_fw_filename = desc->nocodec_fw_filename; + + /* + * TODO: we need to find a way to check if codecs are actually + * present + */ + } +#endif /* CONFIG_SND_SOC_SOF_HDA */ + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC) + if (!mach) { + /* fallback to nocodec mode */ + dev_warn(dev, "No matching ASoC machine driver found - using nocodec\n"); + mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL); + if (!mach) { + ret = -ENOMEM; + goto release_regions; + } + ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops); + if (ret < 0) + goto release_regions; + } +#endif /* CONFIG_SND_SOC_SOF_NOCODEC */ + +#endif /* CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE */ + + if (!mach) { + dev_err(dev, "error: no matching ASoC machine driver found - aborting probe\n"); + ret = -ENODEV; + goto release_regions; + } + + mach->pdata = ops; + + sof_pdata->id = pci_id->device; + sof_pdata->name = pci_name(pci); + sof_pdata->machine = mach; + sof_pdata->desc = (struct sof_dev_desc *)pci_id->driver_data; + priv->sof_pdata = sof_pdata; + sof_pdata->dev = &pci->dev; + sof_pdata->type = SOF_DEVICE_PCI; + sof_pdata->platform = "sof-audio"; + + /* register sof-audio platform driver */ + ret = sof_create_platform_device(priv); + if (ret) { + dev_err(dev, "error: failed to create platform device!\n"); + goto release_regions; + } + + /* allow runtime_pm */ + pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY); + 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); + + /* follow recommendation in pci-driver.c to decrement usage counter */ + pm_runtime_put_noidle(dev); + + return ret; + +release_regions: + pci_release_regions(pci); + + return ret; +} + +static void sof_pci_shutdown(struct pci_dev *pci) +{ + snd_sof_shutdown(&pci->dev); +} + +static void sof_pci_remove(struct pci_dev *pci) +{ + struct sof_platform_priv *priv = pci_get_drvdata(pci); + struct snd_sof_pdata *sof_pdata = priv->sof_pdata; + + /* unregister sof-audio platform driver */ + if (!IS_ERR(priv->pdev_pcm)) + platform_device_unregister(priv->pdev_pcm); + + /* release firmware */ + release_firmware(sof_pdata->fw); + + /* follow recommendation in pci-driver.c to increment usage counter */ + pm_runtime_get_noresume(&pci->dev); + + /* release pci regions and disable device */ + pci_release_regions(pci); +} + +/* PCI IDs */ +static const struct pci_device_id sof_pci_ids[] = { +#if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE) + /* BXT-P & Apollolake */ + { PCI_DEVICE(0x8086, 0x5a98), + .driver_data = (unsigned long)&bxt_desc}, + { PCI_DEVICE(0x8086, 0x1a98), + .driver_data = (unsigned long)&bxt_desc}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE) + { PCI_DEVICE(0x8086, 0x3198), + .driver_data = (unsigned long)&glk_desc}, +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) + { PCI_DEVICE(0x8086, 0x119a), + .driver_data = (unsigned long)&byt_desc}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE) + { PCI_DEVICE(0x8086, 0x9dc8), + .driver_data = (unsigned long)&cnl_desc}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_KABYLAKE) + { PCI_DEVICE(0x8086, 0x9d71), + .driver_data = (unsigned long)&kbl_desc}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_SKYLAKE) + { PCI_DEVICE(0x8086, 0x9d70), + .driver_data = (unsigned long)&skl_desc}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE) + { PCI_DEVICE(0x8086, 0x34C8), + .driver_data = (unsigned long)&icl_desc}, +#endif + { 0, } +}; +MODULE_DEVICE_TABLE(pci, sof_pci_ids); + +/* pci_driver definition */ +static struct pci_driver snd_sof_pci_driver = { + .name = "sof-audio-pci", + .id_table = sof_pci_ids, + .probe = sof_pci_probe, + .remove = sof_pci_remove, + .shutdown = sof_pci_shutdown, + .driver = { + .pm = &sof_pci_pm, + }, +}; +module_pci_driver(snd_sof_pci_driver); + +MODULE_LICENSE("Dual BSD/GPL");