| /* |
| * 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; |
| } |
| |
| static 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 |
| */ |
| static 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 }, |
| {}, |
| }; |
| |
| /* Cherryview-based platforms: CherryTrail and Braswell */ |
| static struct sst_machines sst_acpi_chv[] = { |
| {"10EC5670", "cht-bsw", "cht-bsw-rt5672", NULL, "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", |
| .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"); |