ASoC: Intel: mrfld- add ACPI module (336cfbb0) · Commits · e / devices / android_kernel_teracube_emerald

sound/soc/intel/Kconfig

+5 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,11 @@ config SND_SST_IPC_PCI
		tristate
		select SND_SST_IPC

		config SND_SST_IPC_ACPI
		tristate
		select SND_SST_IPC
		depends on ACPI

		config SND_SOC_INTEL_SST
		tristate "ASoC support for Intel(R) Smart Sound Technology"
		select SND_SOC_INTEL_SST_ACPI if ACPI

sound/soc/intel/sst/Makefile

+2 −2

Original line number	Diff line number	Diff line
		snd-intel-sst-core-objs := sst.o sst_ipc.o sst_stream.o sst_drv_interface.o sst_loader.o sst_pvt.o
		snd-intel-sst-pci-objs += sst_pci.o

		snd-intel-sst-acpi-objs += sst_acpi.o

		obj-$(CONFIG_SND_SST_IPC) += snd-intel-sst-core.o
		obj-$(CONFIG_SND_SST_IPC_PCI) += snd-intel-sst-pci.o

		obj-$(CONFIG_SND_SST_IPC_ACPI) += snd-intel-sst-acpi.o

sound/soc/intel/sst/sst.c

+19 −3

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@
		#include <linux/pm_runtime.h>
		#include <linux/pm_qos.h>
		#include <linux/async.h>
		#include <linux/acpi.h>
		#include <sound/core.h>
		#include <sound/soc.h>
		#include <asm/platform_sst_audio.h>
		@@ -181,6 +182,7 @@ int sst_driver_ops(struct intel_sst_drv *sst)

		switch (sst->dev_id) {
		case SST_MRFLD_PCI_ID:
		case SST_BYT_ACPI_ID:
		sst->tstamp = SST_TIME_STAMP_MRFLD;
		sst->ops = &mrfld_ops;
		return 0;
		@@ -323,7 +325,7 @@ EXPORT_SYMBOL_GPL(sst_context_init);
		void sst_context_cleanup(struct intel_sst_drv *ctx)
		{
		pm_runtime_get_noresume(ctx->dev);
		pm_runtime_forbid(ctx->dev);
		pm_runtime_disable(ctx->dev);
		sst_unregister(ctx->dev);
		sst_set_fw_state_locked(ctx, SST_SHUTDOWN);
		flush_scheduled_work();
		@@ -371,9 +373,20 @@ void sst_configure_runtime_pm(struct intel_sst_drv *ctx)
		{
		pm_runtime_set_autosuspend_delay(ctx->dev, SST_SUSPEND_DELAY);
		pm_runtime_use_autosuspend(ctx->dev);
		/*
		* For acpi devices, the actual physical device state is
		* initially active. So change the state to active before
		* enabling the pm
		*/
		if (acpi_disabled) {
		pm_runtime_set_active(ctx->dev);
		pm_runtime_enable(ctx->dev);
		} else {
		pm_runtime_allow(ctx->dev);
		pm_runtime_put_noidle(ctx->dev);
		}
		sst_save_shim64(ctx, ctx->shim, ctx->shim_regs64);
		}
		EXPORT_SYMBOL_GPL(sst_configure_runtime_pm);

		static int intel_sst_runtime_suspend(struct device *dev)
		@@ -395,6 +408,9 @@ static int intel_sst_runtime_suspend(struct device *dev)
		synchronize_irq(ctx->irq_num);
		flush_workqueue(ctx->post_msg_wq);

		/* save the shim registers because PMC doesn't save state */
		sst_save_shim64(ctx, ctx->shim, ctx->shim_regs64);

		return ret;
		}

sound/soc/intel/sst/sst.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -29,6 +29,7 @@
		/* driver names */
		#define SST_DRV_NAME "intel_sst_driver"
		#define SST_MRFLD_PCI_ID 0x119A
		#define SST_BYT_ACPI_ID 0x80860F28

		#define SST_SUSPEND_DELAY 2000
		#define FW_CONTEXT_MEM (64*1024)

sound/soc/intel/sst/sst_acpi.c

0 → 100644

+362 −0

Original line number	Diff line number	Diff line
		/*
		* sst_acpi.c - SST (LPE) driver init file for ACPI enumeration.
		*
		* Copyright (c) 2013, Intel Corporation.
		*
		* Authors: Ramesh Babu K V <Ramesh.Babu@intel.com>
		* Authors: Omair Mohammed Abdullah <omair.m.abdullah@intel.com>
		*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms and conditions of the GNU General Public License,
		* version 2, as published by the Free Software Foundation.
		*
		* This program is distributed in the hope 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/module.h>
		#include <linux/fs.h>
		#include <linux/interrupt.h>
		#include <linux/slab.h>
		#include <linux/io.h>
		#include <linux/miscdevice.h>
		#include <linux/platform_device.h>
		#include <linux/firmware.h>
		#include <linux/pm_runtime.h>
		#include <linux/pm_qos.h>
		#include <linux/acpi.h>
		#include <asm/platform_sst_audio.h>
		#include <sound/core.h>
		#include <sound/soc.h>
		#include <sound/compress_driver.h>
		#include <acpi/acbuffer.h>
		#include <acpi/platform/acenv.h>
		#include <acpi/platform/aclinux.h>
		#include <acpi/actypes.h>
		#include <acpi/acpi_bus.h>
		#include "../sst-mfld-platform.h"
		#include "../sst-dsp.h"
		#include "sst.h"

		struct sst_machines {
		char codec_id[32];
		char board[32];
		char machine[32];
		void (*machine_quirk)(void);
		char firmware[32];
		struct sst_platform_info *pdata;

		};

		/* LPE viewpoint addresses */
		#define SST_BYT_IRAM_PHY_START 0xff2c0000
		#define SST_BYT_IRAM_PHY_END 0xff2d4000
		#define SST_BYT_DRAM_PHY_START 0xff300000
		#define SST_BYT_DRAM_PHY_END 0xff320000
		#define SST_BYT_IMR_VIRT_START 0xc0000000 /* virtual addr in LPE */
		#define SST_BYT_IMR_VIRT_END 0xc01fffff
		#define SST_BYT_SHIM_PHY_ADDR 0xff340000
		#define SST_BYT_MBOX_PHY_ADDR 0xff344000
		#define SST_BYT_DMA0_PHY_ADDR 0xff298000
		#define SST_BYT_DMA1_PHY_ADDR 0xff29c000
		#define SST_BYT_SSP0_PHY_ADDR 0xff2a0000
		#define SST_BYT_SSP2_PHY_ADDR 0xff2a2000

		#define BYT_FW_MOD_TABLE_OFFSET 0x80000
		#define BYT_FW_MOD_TABLE_SIZE 0x100
		#define BYT_FW_MOD_OFFSET (BYT_FW_MOD_TABLE_OFFSET + BYT_FW_MOD_TABLE_SIZE)

		static const struct sst_info byt_fwparse_info = {
		.use_elf = false,
		.max_streams = 25,
		.iram_start = SST_BYT_IRAM_PHY_START,
		.iram_end = SST_BYT_IRAM_PHY_END,
		.iram_use = true,
		.dram_start = SST_BYT_DRAM_PHY_START,
		.dram_end = SST_BYT_DRAM_PHY_END,
		.dram_use = true,
		.imr_start = SST_BYT_IMR_VIRT_START,
		.imr_end = SST_BYT_IMR_VIRT_END,
		.imr_use = true,
		.mailbox_start = SST_BYT_MBOX_PHY_ADDR,
		.num_probes = 0,
		.lpe_viewpt_rqd = true,
		};

		static const struct sst_ipc_info byt_ipc_info = {
		.ipc_offset = 0,
		.mbox_recv_off = 0x400,
		};

		static const struct sst_lib_dnld_info byt_lib_dnld_info = {
		.mod_base = SST_BYT_IMR_VIRT_START,
		.mod_end = SST_BYT_IMR_VIRT_END,
		.mod_table_offset = BYT_FW_MOD_TABLE_OFFSET,
		.mod_table_size = BYT_FW_MOD_TABLE_SIZE,
		.mod_ddr_dnld = false,
		};

		static const struct sst_res_info byt_rvp_res_info = {
		.shim_offset = 0x140000,
		.shim_size = 0x000100,
		.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
		.ssp0_offset = 0xa0000,
		.ssp0_size = 0x1000,
		.dma0_offset = 0x98000,
		.dma0_size = 0x4000,
		.dma1_offset = 0x9c000,
		.dma1_size = 0x4000,
		.iram_offset = 0x0c0000,
		.iram_size = 0x14000,
		.dram_offset = 0x100000,
		.dram_size = 0x28000,
		.mbox_offset = 0x144000,
		.mbox_size = 0x1000,
		.acpi_lpe_res_index = 0,
		.acpi_ddr_index = 2,
		.acpi_ipc_irq_index = 5,
		};

		struct sst_platform_info byt_rvp_platform_data = {
		.probe_data = &byt_fwparse_info,
		.ipc_info = &byt_ipc_info,
		.lib_info = &byt_lib_dnld_info,
		.res_info = &byt_rvp_res_info,
		.platform = "sst-mfld-platform",
		};

		static int sst_platform_get_resources(struct intel_sst_drv *ctx)
		{
		struct resource *rsrc;
		struct platform_device *pdev = to_platform_device(ctx->dev);

		/* All ACPI resource request here */
		/* Get Shim addr */
		rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
		ctx->pdata->res_info->acpi_lpe_res_index);
		if (!rsrc) {
		dev_err(ctx->dev, "Invalid SHIM base from IFWI");
		return -EIO;
		}
		dev_info(ctx->dev, "LPE base: %#x size:%#x", (unsigned int) rsrc->start,
		(unsigned int)resource_size(rsrc));

		ctx->iram_base = rsrc->start + ctx->pdata->res_info->iram_offset;
		ctx->iram_end = ctx->iram_base + ctx->pdata->res_info->iram_size - 1;
		dev_info(ctx->dev, "IRAM base: %#x", ctx->iram_base);
		ctx->iram = devm_ioremap_nocache(ctx->dev, ctx->iram_base,
		ctx->pdata->res_info->iram_size);
		if (!ctx->iram) {
		dev_err(ctx->dev, "unable to map IRAM");
		return -EIO;
		}

		ctx->dram_base = rsrc->start + ctx->pdata->res_info->dram_offset;
		ctx->dram_end = ctx->dram_base + ctx->pdata->res_info->dram_size - 1;
		dev_info(ctx->dev, "DRAM base: %#x", ctx->dram_base);
		ctx->dram = devm_ioremap_nocache(ctx->dev, ctx->dram_base,
		ctx->pdata->res_info->dram_size);
		if (!ctx->dram) {
		dev_err(ctx->dev, "unable to map DRAM");
		return -EIO;
		}

		ctx->shim_phy_add = rsrc->start + ctx->pdata->res_info->shim_offset;
		dev_info(ctx->dev, "SHIM base: %#x", ctx->shim_phy_add);
		ctx->shim = devm_ioremap_nocache(ctx->dev, ctx->shim_phy_add,
		ctx->pdata->res_info->shim_size);
		if (!ctx->shim) {
		dev_err(ctx->dev, "unable to map SHIM");
		return -EIO;
		}

		/* reassign physical address to LPE viewpoint address */
		ctx->shim_phy_add = ctx->pdata->res_info->shim_phy_addr;

		/* Get mailbox addr */
		ctx->mailbox_add = rsrc->start + ctx->pdata->res_info->mbox_offset;
		dev_info(ctx->dev, "Mailbox base: %#x", ctx->mailbox_add);
		ctx->mailbox = devm_ioremap_nocache(ctx->dev, ctx->mailbox_add,
		ctx->pdata->res_info->mbox_size);
		if (!ctx->mailbox) {
		dev_err(ctx->dev, "unable to map mailbox");
		return -EIO;
		}

		/* reassign physical address to LPE viewpoint address */
		ctx->mailbox_add = ctx->info.mailbox_start;

		rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
		ctx->pdata->res_info->acpi_ddr_index);
		if (!rsrc) {
		dev_err(ctx->dev, "Invalid DDR base from IFWI");
		return -EIO;
		}
		ctx->ddr_base = rsrc->start;
		ctx->ddr_end = rsrc->end;
		dev_info(ctx->dev, "DDR base: %#x", ctx->ddr_base);
		ctx->ddr = devm_ioremap_nocache(ctx->dev, ctx->ddr_base,
		resource_size(rsrc));
		if (!ctx->ddr) {
		dev_err(ctx->dev, "unable to map DDR");
		return -EIO;
		}

		/* Find the IRQ */
		ctx->irq_num = platform_get_irq(pdev,
		ctx->pdata->res_info->acpi_ipc_irq_index);
		return 0;
		}

		static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level,
		void context, void *ret)
		{
		(bool )context = true;
		return AE_OK;
		}

		static struct sst_machines *sst_acpi_find_machine(
		struct sst_machines *machines)
		{
		struct sst_machines *mach;
		bool found = false;

		for (mach = machines; mach->codec_id; mach++)
		if (ACPI_SUCCESS(acpi_get_devices(mach->codec_id,
		sst_acpi_mach_match,
		&found, NULL)) && found)
		return mach;

		return NULL;
		}

		int sst_acpi_probe(struct platform_device *pdev)
		{
		struct device *dev = &pdev->dev;
		int ret = 0;
		struct intel_sst_drv *ctx;
		const struct acpi_device_id *id;
		struct sst_machines *mach;
		struct platform_device *mdev;
		struct platform_device *plat_dev;
		unsigned int dev_id;

		id = acpi_match_device(dev->driver->acpi_match_table, dev);
		if (!id)
		return -ENODEV;
		dev_dbg(dev, "for %s", id->id);

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

		ret = kstrtouint(id->id, 16, &dev_id);
		if (ret < 0) {
		dev_err(dev, "Unique device id conversion error: %d\n", ret);
		return ret;
		}

		dev_dbg(dev, "ACPI device id: %x\n", dev_id);

		plat_dev = platform_device_register_data(dev, mach->pdata->platform, -1, NULL, 0);
		if (plat_dev == NULL) {
		dev_err(dev, "Failed to create machine device: %s\n", mach->pdata->platform);
		return -ENODEV;
		}

		/* Create platform device for sst machine driver */
		mdev = platform_device_register_data(dev, mach->machine, -1, NULL, 0);
		if (mdev == NULL) {
		dev_err(dev, "Failed to create machine device: %s\n", mach->machine);
		return -ENODEV;
		}

		ret = sst_alloc_drv_context(&ctx, dev, dev_id);
		if (ret < 0)
		return ret;

		/* Fill sst platform data */
		ctx->pdata = mach->pdata;
		strcpy(ctx->firmware_name, mach->firmware);

		ret = sst_platform_get_resources(ctx);
		if (ret)
		return ret;

		ret = sst_context_init(ctx);
		if (ret < 0)
		return ret;

		/* need to save shim registers in BYT */
		ctx->shim_regs64 = devm_kzalloc(ctx->dev, sizeof(*ctx->shim_regs64),
		GFP_KERNEL);
		if (!ctx->shim_regs64) {
		return -ENOMEM;
		goto do_sst_cleanup;
		}

		sst_configure_runtime_pm(ctx);
		platform_set_drvdata(pdev, ctx);
		return ret;

		do_sst_cleanup:
		sst_context_cleanup(ctx);
		platform_set_drvdata(pdev, NULL);
		dev_err(ctx->dev, "failed with %d\n", ret);
		return ret;
		}

		/**
		* intel_sst_remove - remove function
		*
		* @pdev: platform device structure
		*
		* This function is called by OS when a device is unloaded
		* This frees the interrupt etc
		*/
		int sst_acpi_remove(struct platform_device *pdev)
		{
		struct intel_sst_drv *ctx;

		ctx = platform_get_drvdata(pdev);
		sst_context_cleanup(ctx);
		platform_set_drvdata(pdev, NULL);
		return 0;
		}

		static struct sst_machines sst_acpi_bytcr[] = {
		{"10EC5640", "T100", "bytt100_rt5640", NULL, "fw_sst_0f28.bin",
		&byt_rvp_platform_data },
		{},
		};

		static const struct acpi_device_id sst_acpi_ids[] = {
		{ "80860F28", (unsigned long)&sst_acpi_bytcr},
		{ },
		};

		static struct platform_driver sst_acpi_driver = {
		.driver = {
		.name = "intel_sst_acpi",
		.owner = THIS_MODULE,
		.acpi_match_table = ACPI_PTR(sst_acpi_ids),
		.pm = &intel_sst_pm,
		},
		.probe = sst_acpi_probe,
		.remove = sst_acpi_remove,
		};

		module_platform_driver(sst_acpi_driver);

		MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine ACPI Driver");
		MODULE_AUTHOR("Ramesh Babu K V");
		MODULE_AUTHOR("Omair Mohammed Abdullah");
		MODULE_LICENSE("GPL v2");
		MODULE_ALIAS("sst");