blob: b3360139c41a905ba9575574d42b7477dd0cbc26 [file] [log] [blame]
/*
* 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;
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,
};
static 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",
};
/* Cherryview (Cherrytrail and Braswell) uses same mrfld dpcm fw as Baytrail,
* so pdata is same as Baytrail.
*/
static struct sst_platform_info chv_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 (IS_ERR(plat_dev)) {
dev_err(dev, "Failed to create machine device: %s\n", mach->pdata->platform);
return PTR_ERR(plat_dev);
}
/* Create platform device for sst machine driver */
mdev = platform_device_register_data(dev, mach->machine, -1, NULL, 0);
if (IS_ERR(mdev)) {
dev_err(dev, "Failed to create machine device: %s\n", mach->machine);
return PTR_ERR(mdev);
}
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, "intel/fw_sst_0f28.bin",
&byt_rvp_platform_data },
{},
};
/* Cherryview-based platforms: CherryTrail and Braswell */
static struct sst_machines sst_acpi_chv[] = {
{"10EC5670", "cht-bsw", "cht-bsw-rt5672", NULL, "intel/fw_sst_22a8.bin",
&chv_platform_data },
{},
};
static const struct acpi_device_id sst_acpi_ids[] = {
{ "80860F28", (unsigned long)&sst_acpi_bytcr},
{ "808622A8", (unsigned long) &sst_acpi_chv},
{ },
};
MODULE_DEVICE_TABLE(acpi, sst_acpi_ids);
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");