From: Liam Girdwood liam.r.girdwood@linux.intel.com
Add support ACPI based SOF 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-acpi-dev.c | 269 +++++++++++++++++++++++++++++++++++ 1 file changed, 269 insertions(+) create mode 100644 sound/soc/sof/sof-acpi-dev.c
diff --git a/sound/soc/sof/sof-acpi-dev.c b/sound/soc/sof/sof-acpi-dev.c new file mode 100644 index 000000000000..52de8ac8ede0 --- /dev/null +++ b/sound/soc/sof/sof-acpi-dev.c @@ -0,0 +1,269 @@ +// 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 <asm/iosf_mbi.h> +#include <linux/acpi.h> +#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" + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HASWELL) +static struct sof_dev_desc sof_acpi_haswell_desc = { + .machines = snd_soc_acpi_intel_haswell_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = 1, + .resindex_imr_base = -1, + .irqindex_host_ipc = 0, + .nocodec_fw_filename = "intel/sof-hsw.ri", + .nocodec_tplg_filename = "intel/sof-hsw-nocodec.tplg" +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) +static struct sof_dev_desc sof_acpi_broadwell_desc = { + .machines = snd_soc_acpi_intel_broadwell_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = 1, + .resindex_imr_base = -1, + .irqindex_host_ipc = 0, + .nocodec_fw_filename = "intel/sof-bdw.ri", + .nocodec_tplg_filename = "intel/sof-bdw-nocodec.tplg" +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) + +/* BYTCR uses different IRQ index */ +static struct sof_dev_desc sof_acpi_baytrailcr_desc = { + .machines = snd_soc_acpi_intel_baytrail_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = 1, + .resindex_imr_base = 2, + .irqindex_host_ipc = 0, + .nocodec_fw_filename = "intel/sof-byt.ri", + .nocodec_tplg_filename = "intel/sof-byt-nocodec.tplg" +}; + +static struct sof_dev_desc sof_acpi_baytrail_desc = { + .machines = snd_soc_acpi_intel_baytrail_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = 1, + .resindex_imr_base = 2, + .irqindex_host_ipc = 5, + .nocodec_fw_filename = "intel/sof-byt.ri", + .nocodec_tplg_filename = "intel/sof-byt-nocodec.tplg" +}; + +static int is_byt_cr(struct device *dev) +{ + u32 bios_status; + int status; + + if (!IS_ENABLED(CONFIG_IOSF_MBI) || !iosf_mbi_available()) { + dev_info(dev, "IOSF_MBI not enabled - can't determine CPU variant\n"); + return -EIO; + } + + status = iosf_mbi_read(BT_MBI_UNIT_PMC, /* 0x04 PUNIT */ + MBI_REG_READ, /* 0x10 */ + 0x006, /* BIOS_CONFIG */ + &bios_status); + + if (status) { + dev_err(dev, "error: could not read PUNIT BIOS_CONFIG\n"); + return -EIO; + } + + /* bits 26:27 mirror PMIC options */ + bios_status = (bios_status >> 26) & 3; + + if (bios_status == 1 || bios_status == 3) { + dev_info(dev, "BYT-CR detected\n"); + return 1; + } + + dev_info(dev, "BYT-CR not detected\n"); + return 0; +} + +static struct sof_dev_desc sof_acpi_cherrytrail_desc = { + .machines = snd_soc_acpi_intel_cherrytrail_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = 1, + .resindex_imr_base = 2, + .irqindex_host_ipc = 5, + .nocodec_fw_filename = "intel/sof-cht.ri", + .nocodec_tplg_filename = "intel/sof-cht-nocodec.tplg" +}; + +#endif + +static const struct dev_pm_ops sof_acpi_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, +}; + +static const struct sof_ops_table acpi_mach_ops[] = { +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HASWELL) + {&sof_acpi_haswell_desc, &sof_hsw_ops}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) + {&sof_acpi_broadwell_desc, &sof_bdw_ops}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) + {&sof_acpi_baytrail_desc, &sof_byt_ops}, + {&sof_acpi_baytrailcr_desc, &sof_byt_ops}, + {&sof_acpi_cherrytrail_desc, &sof_cht_ops}, +#endif +}; + +static int sof_acpi_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct sof_dev_desc *desc; + 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(&pdev->dev, "ACPI DSP detected"); + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); + if (!sof_pdata) + return -ENOMEM; + + desc = (const struct sof_dev_desc *)device_get_match_data(dev); + if (!desc) + return -ENODEV; + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) + if (desc == &sof_acpi_baytrail_desc && is_byt_cr(dev)) + desc = &sof_acpi_baytrailcr_desc; +#endif + + /* get ops for platform */ + ops = sof_get_ops(desc, acpi_mach_ops, ARRAY_SIZE(acpi_mach_ops)); + if (!ops) { + dev_err(dev, "error: no matching ACPI descriptor ops\n"); + return -ENODEV; + } + +#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) + return -ENOMEM; + ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops); + if (ret < 0) + return ret; +#else + /* find machine */ + mach = snd_soc_acpi_find_machine(desc->machines); + if (!mach) { +#if IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC) + /* fallback to nocodec mode */ + dev_warn(dev, "No matching ASoC machine driver found - using nocodec\n"); + mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL); + ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops); + if (ret < 0) + return ret; +#else + dev_err(dev, "error: no matching ASoC machine driver found - aborting probe\n"); + return -ENODEV; +#endif + } +#endif + + mach->pdata = ops; + sof_pdata->machine = mach; + sof_pdata->desc = desc; + priv->sof_pdata = sof_pdata; + sof_pdata->dev = &pdev->dev; + sof_pdata->type = SOF_DEVICE_APCI; + sof_pdata->platform = "sof-audio"; + dev_set_drvdata(&pdev->dev, priv); + + /* register sof-audio platform driver */ + ret = sof_create_platform_device(priv); + if (ret) { + dev_err(dev, "error: failed to create platform device!\n"); + return ret; + } + + /* allow runtime_pm */ + pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY); + pm_runtime_use_autosuspend(dev); + pm_runtime_allow(dev); + + return ret; +} + +static void sof_acpi_shutdown(struct platform_device *pdev) +{ + snd_sof_shutdown(&pdev->dev); +} + +static int sof_acpi_remove(struct platform_device *pdev) +{ + struct sof_platform_priv *priv = dev_get_drvdata(&pdev->dev); + struct snd_sof_pdata *sof_pdata = priv->sof_pdata; + + if (!IS_ERR(priv->pdev_pcm)) + platform_device_unregister(priv->pdev_pcm); + release_firmware(sof_pdata->fw); + + return 0; +} + +static const struct acpi_device_id sof_acpi_match[] = { +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HASWELL) + { "INT33C8", (unsigned long)&sof_acpi_haswell_desc }, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) + { "INT3438", (unsigned long)&sof_acpi_broadwell_desc }, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) + { "80860F28", (unsigned long)&sof_acpi_baytrail_desc }, + { "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc }, +#endif + { } +}; +MODULE_DEVICE_TABLE(acpi, sof_acpi_match); + +/* acpi_driver definition */ +static struct platform_driver snd_sof_acpi_driver = { + .probe = sof_acpi_probe, + .remove = sof_acpi_remove, + .shutdown = sof_acpi_shutdown, + .driver = { + .name = "sof-audio-acpi", + .pm = &sof_acpi_pm, + .acpi_match_table = ACPI_PTR(sof_acpi_match), + }, +}; +module_platform_driver(snd_sof_acpi_driver); + +MODULE_LICENSE("Dual BSD/GPL");