sound/soc/intel/common/sst-acpi.c - kernel/quantenna - Git at Google

 /*
  * Intel SST loader on ACPI systems
  *
  * Copyright (C) 2013, Intel Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version
  * 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  */

 #include <linux/acpi.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>

 #include "sst-dsp.h"
 #include "sst-acpi.h"

 #define SST_LPT_DSP_DMA_ADDR_OFFSET	0x0F0000
 #define SST_WPT_DSP_DMA_ADDR_OFFSET	0x0FE000
 #define SST_LPT_DSP_DMA_SIZE		(1024 - 1)

 /* Descriptor for setting up SST platform data */
 struct sst_acpi_desc {
 	const char *drv_name;
 	struct sst_acpi_mach *machines;
 	/* Platform resource indexes. Must set to -1 if not used */
 	int resindex_lpe_base;
 	int resindex_pcicfg_base;
 	int resindex_fw_base;
 	int irqindex_host_ipc;
 	int resindex_dma_base;
 	/* Unique number identifying the SST core on platform */
 	int sst_id;
 	/* DMA only valid when resindex_dma_base != -1*/
 	int dma_engine;
 	int dma_size;
 };

 struct sst_acpi_priv {
 	struct platform_device *pdev_mach;
 	struct platform_device *pdev_pcm;
 	struct sst_pdata sst_pdata;
 	struct sst_acpi_desc *desc;
 	struct sst_acpi_mach *mach;
 };

 static void sst_acpi_fw_cb(const struct firmware *fw, void *context)
 {
 	struct platform_device *pdev = context;
 	struct device *dev = &pdev->dev;
 	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
 	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
 	struct sst_acpi_desc *desc = sst_acpi->desc;
 	struct sst_acpi_mach *mach = sst_acpi->mach;

 	sst_pdata->fw = fw;
 	if (!fw) {
 		dev_err(dev, "Cannot load firmware %s\n", mach->fw_filename);
 		return;
 	}

 	/* register PCM and DAI driver */
 	sst_acpi->pdev_pcm =
 		platform_device_register_data(dev, desc->drv_name, -1,
 					      sst_pdata, sizeof(*sst_pdata));
 	if (IS_ERR(sst_acpi->pdev_pcm)) {
 		dev_err(dev, "Cannot register device %s. Error %d\n",
 			desc->drv_name, (int)PTR_ERR(sst_acpi->pdev_pcm));
 	}

 	return;
 }

 static int sst_acpi_probe(struct platform_device *pdev)
 {
 	const struct acpi_device_id *id;
 	struct device *dev = &pdev->dev;
 	struct sst_acpi_priv *sst_acpi;
 	struct sst_pdata *sst_pdata;
 	struct sst_acpi_mach *mach;
 	struct sst_acpi_desc *desc;
 	struct resource *mmio;
 	int ret = 0;

 	sst_acpi = devm_kzalloc(dev, sizeof(*sst_acpi), GFP_KERNEL);
 	if (sst_acpi == NULL)
 		return -ENOMEM;

 	id = acpi_match_device(dev->driver->acpi_match_table, dev);
 	if (!id)
 		return -ENODEV;

 	desc = (struct sst_acpi_desc *)id->driver_data;
 	mach = sst_acpi_find_machine(desc->machines);
 	if (mach == NULL) {
 		dev_err(dev, "No matching ASoC machine driver found\n");
 		return -ENODEV;
 	}

 	sst_pdata = &sst_acpi->sst_pdata;
 	sst_pdata->id = desc->sst_id;
 	sst_pdata->dma_dev = dev;
 	sst_acpi->desc = desc;
 	sst_acpi->mach = mach;

 	sst_pdata->resindex_dma_base = desc->resindex_dma_base;
 	if (desc->resindex_dma_base >= 0) {
 		sst_pdata->dma_engine = desc->dma_engine;
 		sst_pdata->dma_base = desc->resindex_dma_base;
 		sst_pdata->dma_size = desc->dma_size;
 	}

 	if (desc->irqindex_host_ipc >= 0)
 		sst_pdata->irq = platform_get_irq(pdev, desc->irqindex_host_ipc);

 	if (desc->resindex_lpe_base >= 0) {
 		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
 					     desc->resindex_lpe_base);
 		if (mmio) {
 			sst_pdata->lpe_base = mmio->start;
 			sst_pdata->lpe_size = resource_size(mmio);
 		}
 	}

 	if (desc->resindex_pcicfg_base >= 0) {
 		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
 					     desc->resindex_pcicfg_base);
 		if (mmio) {
 			sst_pdata->pcicfg_base = mmio->start;
 			sst_pdata->pcicfg_size = resource_size(mmio);
 		}
 	}

 	if (desc->resindex_fw_base >= 0) {
 		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
 					     desc->resindex_fw_base);
 		if (mmio) {
 			sst_pdata->fw_base = mmio->start;
 			sst_pdata->fw_size = resource_size(mmio);
 		}
 	}

 	platform_set_drvdata(pdev, sst_acpi);

 	/* register machine driver */
 	sst_acpi->pdev_mach =
 		platform_device_register_data(dev, mach->drv_name, -1,
 					      sst_pdata, sizeof(*sst_pdata));
 	if (IS_ERR(sst_acpi->pdev_mach))
 		return PTR_ERR(sst_acpi->pdev_mach);

 	/* continue SST probing after firmware is loaded */
 	ret = request_firmware_nowait(THIS_MODULE, true, mach->fw_filename,
 				      dev, GFP_KERNEL, pdev, sst_acpi_fw_cb);
 	if (ret)
 		platform_device_unregister(sst_acpi->pdev_mach);

 	return ret;
 }

 static int sst_acpi_remove(struct platform_device *pdev)
 {
 	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
 	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;

 	platform_device_unregister(sst_acpi->pdev_mach);
 	if (!IS_ERR_OR_NULL(sst_acpi->pdev_pcm))
 		platform_device_unregister(sst_acpi->pdev_pcm);
 	release_firmware(sst_pdata->fw);

 	return 0;
 }

 static struct sst_acpi_mach haswell_machines[] = {
 	{ "INT33CA", "haswell-audio", "intel/IntcSST1.bin", NULL, NULL, NULL },
 	{}
 };

 static struct sst_acpi_desc sst_acpi_haswell_desc = {
 	.drv_name = "haswell-pcm-audio",
 	.machines = haswell_machines,
 	.resindex_lpe_base = 0,
 	.resindex_pcicfg_base = 1,
 	.resindex_fw_base = -1,
 	.irqindex_host_ipc = 0,
 	.sst_id = SST_DEV_ID_LYNX_POINT,
 	.dma_engine = SST_DMA_TYPE_DW,
 	.resindex_dma_base = SST_LPT_DSP_DMA_ADDR_OFFSET,
 	.dma_size = SST_LPT_DSP_DMA_SIZE,
 };

 static struct sst_acpi_mach broadwell_machines[] = {
 	{ "INT343A", "broadwell-audio", "intel/IntcSST2.bin", NULL, NULL, NULL },
 	{}
 };

 static struct sst_acpi_desc sst_acpi_broadwell_desc = {
 	.drv_name = "haswell-pcm-audio",
 	.machines = broadwell_machines,
 	.resindex_lpe_base = 0,
 	.resindex_pcicfg_base = 1,
 	.resindex_fw_base = -1,
 	.irqindex_host_ipc = 0,
 	.sst_id = SST_DEV_ID_WILDCAT_POINT,
 	.dma_engine = SST_DMA_TYPE_DW,
 	.resindex_dma_base = SST_WPT_DSP_DMA_ADDR_OFFSET,
 	.dma_size = SST_LPT_DSP_DMA_SIZE,
 };

 #if !IS_ENABLED(CONFIG_SND_SST_IPC_ACPI)
 static struct sst_acpi_mach baytrail_machines[] = {
 	{ "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-48kHz_i2s_master", NULL, NULL, NULL },
 	{ "193C9890", "byt-max98090", "intel/fw_sst_0f28.bin-48kHz_i2s_master", NULL, NULL, NULL },
 	{}
 };

 static struct sst_acpi_desc sst_acpi_baytrail_desc = {
 	.drv_name = "baytrail-pcm-audio",
 	.machines = baytrail_machines,
 	.resindex_lpe_base = 0,
 	.resindex_pcicfg_base = 1,
 	.resindex_fw_base = 2,
 	.irqindex_host_ipc = 5,
 	.sst_id = SST_DEV_ID_BYT,
 	.resindex_dma_base = -1,
 };
 #endif

 static const struct acpi_device_id sst_acpi_match[] = {
 	{ "INT33C8", (unsigned long)&sst_acpi_haswell_desc },
 	{ "INT3438", (unsigned long)&sst_acpi_broadwell_desc },
 #if !IS_ENABLED(CONFIG_SND_SST_IPC_ACPI)
 	{ "80860F28", (unsigned long)&sst_acpi_baytrail_desc },
 #endif
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, sst_acpi_match);

 static struct platform_driver sst_acpi_driver = {
 	.probe = sst_acpi_probe,
 	.remove = sst_acpi_remove,
 	.driver = {
 		.name = "sst-acpi",
 		.acpi_match_table = ACPI_PTR(sst_acpi_match),
 	},
 };
 module_platform_driver(sst_acpi_driver);

 MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@linux.intel.com>");
 MODULE_DESCRIPTION("Intel SST loader on ACPI systems");
 MODULE_LICENSE("GPL v2");
	/*
	* Intel SST loader on ACPI systems
	*
	* Copyright (C) 2013, Intel Corporation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License version
	* 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	*/

	#include <linux/acpi.h>
	#include <linux/device.h>
	#include <linux/firmware.h>
	#include <linux/module.h>
	#include <linux/platform_device.h>

	#include "sst-dsp.h"
	#include "sst-acpi.h"

	#define SST_LPT_DSP_DMA_ADDR_OFFSET 0x0F0000
	#define SST_WPT_DSP_DMA_ADDR_OFFSET 0x0FE000
	#define SST_LPT_DSP_DMA_SIZE (1024 - 1)

	/* Descriptor for setting up SST platform data */
	struct sst_acpi_desc {
	const char *drv_name;
	struct sst_acpi_mach *machines;
	/* Platform resource indexes. Must set to -1 if not used */
	int resindex_lpe_base;
	int resindex_pcicfg_base;
	int resindex_fw_base;
	int irqindex_host_ipc;
	int resindex_dma_base;
	/* Unique number identifying the SST core on platform */
	int sst_id;
	/* DMA only valid when resindex_dma_base != -1*/
	int dma_engine;
	int dma_size;
	};

	struct sst_acpi_priv {
	struct platform_device *pdev_mach;
	struct platform_device *pdev_pcm;
	struct sst_pdata sst_pdata;
	struct sst_acpi_desc *desc;
	struct sst_acpi_mach *mach;
	};

	static void sst_acpi_fw_cb(const struct firmware fw, void context)
	{
	struct platform_device *pdev = context;
	struct device *dev = &pdev->dev;
	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
	struct sst_acpi_desc *desc = sst_acpi->desc;
	struct sst_acpi_mach *mach = sst_acpi->mach;

	sst_pdata->fw = fw;
	if (!fw) {
	dev_err(dev, "Cannot load firmware %s\n", mach->fw_filename);
	return;
	}

	/* register PCM and DAI driver */
	sst_acpi->pdev_pcm =
	platform_device_register_data(dev, desc->drv_name, -1,
	sst_pdata, sizeof(*sst_pdata));
	if (IS_ERR(sst_acpi->pdev_pcm)) {
	dev_err(dev, "Cannot register device %s. Error %d\n",
	desc->drv_name, (int)PTR_ERR(sst_acpi->pdev_pcm));
	}

	return;
	}

	static int sst_acpi_probe(struct platform_device *pdev)
	{
	const struct acpi_device_id *id;
	struct device *dev = &pdev->dev;
	struct sst_acpi_priv *sst_acpi;
	struct sst_pdata *sst_pdata;
	struct sst_acpi_mach *mach;
	struct sst_acpi_desc *desc;
	struct resource *mmio;
	int ret = 0;

	sst_acpi = devm_kzalloc(dev, sizeof(*sst_acpi), GFP_KERNEL);
	if (sst_acpi == NULL)
	return -ENOMEM;

	id = acpi_match_device(dev->driver->acpi_match_table, dev);
	if (!id)
	return -ENODEV;

	desc = (struct sst_acpi_desc *)id->driver_data;
	mach = sst_acpi_find_machine(desc->machines);
	if (mach == NULL) {
	dev_err(dev, "No matching ASoC machine driver found\n");
	return -ENODEV;
	}

	sst_pdata = &sst_acpi->sst_pdata;
	sst_pdata->id = desc->sst_id;
	sst_pdata->dma_dev = dev;
	sst_acpi->desc = desc;
	sst_acpi->mach = mach;

	sst_pdata->resindex_dma_base = desc->resindex_dma_base;
	if (desc->resindex_dma_base >= 0) {
	sst_pdata->dma_engine = desc->dma_engine;
	sst_pdata->dma_base = desc->resindex_dma_base;
	sst_pdata->dma_size = desc->dma_size;
	}

	if (desc->irqindex_host_ipc >= 0)
	sst_pdata->irq = platform_get_irq(pdev, desc->irqindex_host_ipc);

	if (desc->resindex_lpe_base >= 0) {
	mmio = platform_get_resource(pdev, IORESOURCE_MEM,
	desc->resindex_lpe_base);
	if (mmio) {
	sst_pdata->lpe_base = mmio->start;
	sst_pdata->lpe_size = resource_size(mmio);
	}
	}

	if (desc->resindex_pcicfg_base >= 0) {
	mmio = platform_get_resource(pdev, IORESOURCE_MEM,
	desc->resindex_pcicfg_base);
	if (mmio) {
	sst_pdata->pcicfg_base = mmio->start;
	sst_pdata->pcicfg_size = resource_size(mmio);
	}
	}

	if (desc->resindex_fw_base >= 0) {
	mmio = platform_get_resource(pdev, IORESOURCE_MEM,
	desc->resindex_fw_base);
	if (mmio) {
	sst_pdata->fw_base = mmio->start;
	sst_pdata->fw_size = resource_size(mmio);
	}
	}

	platform_set_drvdata(pdev, sst_acpi);

	/* register machine driver */
	sst_acpi->pdev_mach =
	platform_device_register_data(dev, mach->drv_name, -1,
	sst_pdata, sizeof(*sst_pdata));
	if (IS_ERR(sst_acpi->pdev_mach))
	return PTR_ERR(sst_acpi->pdev_mach);

	/* continue SST probing after firmware is loaded */
	ret = request_firmware_nowait(THIS_MODULE, true, mach->fw_filename,
	dev, GFP_KERNEL, pdev, sst_acpi_fw_cb);
	if (ret)
	platform_device_unregister(sst_acpi->pdev_mach);

	return ret;
	}

	static int sst_acpi_remove(struct platform_device *pdev)
	{
	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;

	platform_device_unregister(sst_acpi->pdev_mach);
	if (!IS_ERR_OR_NULL(sst_acpi->pdev_pcm))
	platform_device_unregister(sst_acpi->pdev_pcm);
	release_firmware(sst_pdata->fw);

	return 0;
	}

	static struct sst_acpi_mach haswell_machines[] = {
	{ "INT33CA", "haswell-audio", "intel/IntcSST1.bin", NULL, NULL, NULL },
	{}
	};

	static struct sst_acpi_desc sst_acpi_haswell_desc = {
	.drv_name = "haswell-pcm-audio",
	.machines = haswell_machines,
	.resindex_lpe_base = 0,
	.resindex_pcicfg_base = 1,
	.resindex_fw_base = -1,
	.irqindex_host_ipc = 0,
	.sst_id = SST_DEV_ID_LYNX_POINT,
	.dma_engine = SST_DMA_TYPE_DW,
	.resindex_dma_base = SST_LPT_DSP_DMA_ADDR_OFFSET,
	.dma_size = SST_LPT_DSP_DMA_SIZE,
	};

	static struct sst_acpi_mach broadwell_machines[] = {
	{ "INT343A", "broadwell-audio", "intel/IntcSST2.bin", NULL, NULL, NULL },
	{}
	};

	static struct sst_acpi_desc sst_acpi_broadwell_desc = {
	.drv_name = "haswell-pcm-audio",
	.machines = broadwell_machines,
	.resindex_lpe_base = 0,
	.resindex_pcicfg_base = 1,
	.resindex_fw_base = -1,
	.irqindex_host_ipc = 0,
	.sst_id = SST_DEV_ID_WILDCAT_POINT,
	.dma_engine = SST_DMA_TYPE_DW,
	.resindex_dma_base = SST_WPT_DSP_DMA_ADDR_OFFSET,
	.dma_size = SST_LPT_DSP_DMA_SIZE,
	};

	#if !IS_ENABLED(CONFIG_SND_SST_IPC_ACPI)
	static struct sst_acpi_mach baytrail_machines[] = {
	{ "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-48kHz_i2s_master", NULL, NULL, NULL },
	{ "193C9890", "byt-max98090", "intel/fw_sst_0f28.bin-48kHz_i2s_master", NULL, NULL, NULL },
	{}
	};

	static struct sst_acpi_desc sst_acpi_baytrail_desc = {
	.drv_name = "baytrail-pcm-audio",
	.machines = baytrail_machines,
	.resindex_lpe_base = 0,
	.resindex_pcicfg_base = 1,
	.resindex_fw_base = 2,
	.irqindex_host_ipc = 5,
	.sst_id = SST_DEV_ID_BYT,
	.resindex_dma_base = -1,
	};
	#endif

	static const struct acpi_device_id sst_acpi_match[] = {
	{ "INT33C8", (unsigned long)&sst_acpi_haswell_desc },
	{ "INT3438", (unsigned long)&sst_acpi_broadwell_desc },
	#if !IS_ENABLED(CONFIG_SND_SST_IPC_ACPI)
	{ "80860F28", (unsigned long)&sst_acpi_baytrail_desc },
	#endif
	{ }
	};
	MODULE_DEVICE_TABLE(acpi, sst_acpi_match);

	static struct platform_driver sst_acpi_driver = {
	.probe = sst_acpi_probe,
	.remove = sst_acpi_remove,
	.driver = {
	.name = "sst-acpi",
	.acpi_match_table = ACPI_PTR(sst_acpi_match),
	},
	};
	module_platform_driver(sst_acpi_driver);

	MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@linux.intel.com>");
	MODULE_DESCRIPTION("Intel SST loader on ACPI systems");
	MODULE_LICENSE("GPL v2");