From: Subhransu S. Prusty subhransu.s.prusty@intel.com
This allow the sst.c to be common across PCI and APCI usages
Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com
Author: Subhransu S. Prusty subhransu.s.prusty@intel.com --- sound/soc/intel/Kconfig | 4 + sound/soc/intel/sst/Makefile | 4 + sound/soc/intel/sst/sst.c | 200 +------------------------------------ sound/soc/intel/sst/sst.h | 6 + sound/soc/intel/sst/sst_pci.c | 225 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 240 insertions(+), 199 deletions(-) create mode 100644 sound/soc/intel/sst/sst_pci.c
diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig index 2a3af88..cbc987e 100644 --- a/sound/soc/intel/Kconfig +++ b/sound/soc/intel/Kconfig @@ -4,6 +4,7 @@ config SND_MFLD_MACHINE select SND_SOC_SN95031 select SND_SST_MFLD_PLATFORM select SND_SST_IPC + select SND_SST_IPC_PCI help This adds support for ASoC machine driver for Intel(R) MID Medfield platform used as alsa device in audio substem in Intel(R) MID devices @@ -16,6 +17,9 @@ config SND_SST_MFLD_PLATFORM config SND_SST_IPC tristate
+config SND_SST_IPC_PCI + bool + config SND_SOC_INTEL_SST tristate "ASoC support for Intel(R) Smart Sound Technology" select SND_SOC_INTEL_SST_ACPI if ACPI diff --git a/sound/soc/intel/sst/Makefile b/sound/soc/intel/sst/Makefile index 4d0e79b..b3fbccd 100644 --- a/sound/soc/intel/sst/Makefile +++ b/sound/soc/intel/sst/Makefile @@ -1,3 +1,7 @@ snd-intel-sst-objs := sst.o sst_ipc.o sst_stream.o sst_drv_interface.o sst_loader.o sst_pvt.o
+ifneq ($(CONFIG_SND_SST_IPC_PCI),) +snd-intel-sst-objs += sst_pci.o +endif + obj-$(CONFIG_SND_SST_IPC) += snd-intel-sst.o diff --git a/sound/soc/intel/sst/sst.c b/sound/soc/intel/sst/sst.c index ad16101..97c737a 100644 --- a/sound/soc/intel/sst/sst.c +++ b/sound/soc/intel/sst/sst.c @@ -20,30 +20,19 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include <linux/module.h> -#include <linux/pci.h> #include <linux/fs.h> #include <linux/interrupt.h> #include <linux/firmware.h> #include <linux/pm_runtime.h> #include <linux/pm_qos.h> #include <linux/async.h> -#include <linux/delay.h> -#include <linux/acpi.h> #include <sound/core.h> -#include <sound/pcm.h> #include <sound/soc.h> -#include <sound/compress_driver.h> -#include <asm/intel-mid.h> #include <asm/platform_sst_audio.h> #include "../sst-mfld-platform.h" #include "sst.h" #include "../sst-dsp.h"
-MODULE_AUTHOR("Vinod Koul vinod.koul@intel.com"); -MODULE_AUTHOR("Harsha Priya priya.harsha@intel.com"); -MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine Driver"); -MODULE_LICENSE("GPL v2"); - static inline bool sst_is_process_reply(u32 msg_id) { return ((msg_id & PROCESS_MSG) ? true : false); @@ -340,174 +329,7 @@ void sst_configure_runtime_pm(struct intel_sst_drv *ctx) pm_runtime_put_noidle(ctx->dev); }
-static int sst_platform_get_resources(struct intel_sst_drv *ctx) -{ - int ddr_base, ret = 0; - struct pci_dev *pci = ctx->pci; - ret = pci_request_regions(pci, SST_DRV_NAME); - if (ret) - return ret; - - /* map registers */ - /* DDR base */ - if (ctx->dev_id == SST_MRFLD_PCI_ID) { - ctx->ddr_base = pci_resource_start(pci, 0); - /* check that the relocated IMR base matches with FW Binary */ - ddr_base = relocate_imr_addr_mrfld(ctx->ddr_base); - if (!ctx->pdata->lib_info) { - dev_err(ctx->dev, "lib_info pointer NULL\n"); - ret = -EINVAL; - goto do_release_regions; - } - if (ddr_base != ctx->pdata->lib_info->mod_base) { - dev_err(ctx->dev, - "FW LSP DDR BASE does not match with IFWI\n"); - ret = -EINVAL; - goto do_release_regions; - } - ctx->ddr_end = pci_resource_end(pci, 0); - - ctx->ddr = pcim_iomap(pci, 0, - pci_resource_len(pci, 0)); - if (!ctx->ddr) { - ret = -EINVAL; - goto do_release_regions; - } - dev_dbg(ctx->dev, "sst: DDR Ptr %p\n", ctx->ddr); - } else { - ctx->ddr = NULL; - } - /* SHIM */ - ctx->shim_phy_add = pci_resource_start(pci, 1); - ctx->shim = pcim_iomap(pci, 1, pci_resource_len(pci, 1)); - if (!ctx->shim) { - ret = -EINVAL; - goto do_release_regions; - } - dev_dbg(ctx->dev, "SST Shim Ptr %p\n", ctx->shim); - - /* Shared SRAM */ - ctx->mailbox_add = pci_resource_start(pci, 2); - ctx->mailbox = pcim_iomap(pci, 2, pci_resource_len(pci, 2)); - if (!ctx->mailbox) { - ret = -EINVAL; - goto do_release_regions; - } - dev_dbg(ctx->dev, "SRAM Ptr %p\n", ctx->mailbox); - - /* IRAM */ - ctx->iram_end = pci_resource_end(pci, 3); - ctx->iram_base = pci_resource_start(pci, 3); - ctx->iram = pcim_iomap(pci, 3, pci_resource_len(pci, 3)); - if (!ctx->iram) { - ret = -EINVAL; - goto do_release_regions; - } - dev_dbg(ctx->dev, "IRAM Ptr %p\n", ctx->iram); - - /* DRAM */ - ctx->dram_end = pci_resource_end(pci, 4); - ctx->dram_base = pci_resource_start(pci, 4); - ctx->dram = pcim_iomap(pci, 4, pci_resource_len(pci, 4)); - if (!ctx->dram) { - ret = -EINVAL; - goto do_release_regions; - } - dev_dbg(ctx->dev, "DRAM Ptr %p\n", ctx->dram); -do_release_regions: - pci_release_regions(pci); - return 0; -} -/* -* intel_sst_probe - PCI probe function -* -* @pci: PCI device structure -* @pci_id: PCI device ID structure -* -*/ -static int intel_sst_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) -{ - int ret = 0; - struct intel_sst_drv *sst_drv_ctx; - struct sst_platform_info *sst_pdata = pci->dev.platform_data; - - dev_dbg(&pci->dev, "Probe for DID %x\n", pci->device); - - ret = sst_alloc_drv_context(&sst_drv_ctx, &pci->dev, pci->device); - if (ret < 0) - return ret; - - sst_drv_ctx->pdata = sst_pdata; - sst_drv_ctx->irq_num = pci->irq; - - ret = sst_context_init(sst_drv_ctx); - if (ret < 0) - goto do_free_drv_ctx; - - - /* Init the device */ - ret = pcim_enable_device(pci); - if (ret) { - dev_err(sst_drv_ctx->dev, - "device can't be enabled. Returned err: %d\n", ret); - goto do_destroy_wq; - } - sst_drv_ctx->pci = pci_dev_get(pci); - - ret = sst_platform_get_resources(sst_drv_ctx); - if (ret < 0) - goto do_destroy_wq; - - sst_set_fw_state_locked(sst_drv_ctx, SST_RESET); - snprintf(sst_drv_ctx->firmware_name, sizeof(sst_drv_ctx->firmware_name), - "%s%04x%s", "fw_sst_", - sst_drv_ctx->dev_id, ".bin"); - dev_dbg(sst_drv_ctx->dev, - "Requesting FW %s now...\n", sst_drv_ctx->firmware_name); - ret = request_firmware_nowait(THIS_MODULE, 1, - sst_drv_ctx->firmware_name, sst_drv_ctx->dev, - GFP_KERNEL, sst_drv_ctx, sst_firmware_load_cb); - - if (ret) { - dev_err(sst_drv_ctx->dev, - "Firmware load failed with error: %d\n", ret); - goto do_release_regions; - } - - - pci_set_drvdata(pci, sst_drv_ctx); - sst_configure_runtime_pm(sst_drv_ctx); - sst_register(sst_drv_ctx->dev); - - return ret; - -do_release_regions: - pci_release_regions(pci); -do_destroy_wq: - destroy_workqueue(sst_drv_ctx->post_msg_wq); -do_free_drv_ctx: - dev_err(sst_drv_ctx->dev, "Probe failed with %d\n", ret); - return ret; -} - -/** -* intel_sst_remove - PCI remove function -* -* @pci: PCI device structure -* -* This function is called by OS when a device is unloaded -* This frees the interrupt etc -*/ -static void intel_sst_remove(struct pci_dev *pci) -{ - struct intel_sst_drv *sst_drv_ctx = pci_get_drvdata(pci);
- sst_context_cleanup(sst_drv_ctx); - pci_dev_put(sst_drv_ctx->pci); - pci_release_regions(pci); - pci_set_drvdata(pci, NULL); -}
static int intel_sst_runtime_suspend(struct device *dev) { @@ -550,27 +372,7 @@ static int intel_sst_runtime_resume(struct device *dev) return ret; }
-static const struct dev_pm_ops intel_sst_pm = { +const struct dev_pm_ops intel_sst_pm = { .runtime_suspend = intel_sst_runtime_suspend, .runtime_resume = intel_sst_runtime_resume, }; - -/*PCI Routines*/ -static struct pci_device_id intel_sst_ids[] = { - { PCI_VDEVICE(INTEL, SST_MRFLD_PCI_ID), 0}, - { 0, } -}; - -static struct pci_driver sst_driver = { - .name = SST_DRV_NAME, - .id_table = intel_sst_ids, - .probe = intel_sst_probe, - .remove = intel_sst_remove, -#ifdef CONFIG_PM - .driver = { - .pm = &intel_sst_pm, - }, -#endif -}; - -module_pci_driver(sst_driver); diff --git a/sound/soc/intel/sst/sst.h b/sound/soc/intel/sst/sst.h index b65b9c0..3ee555e 100644 --- a/sound/soc/intel/sst/sst.h +++ b/sound/soc/intel/sst/sst.h @@ -40,6 +40,7 @@ #define MRFLD_FW_FEATURE_BASE_OFFSET 0x4 #define MRFLD_FW_BSS_RESET_BIT 0
+extern const struct dev_pm_ops intel_sst_pm; enum sst_states { SST_FW_LOADING = 1, SST_FW_RUNNING, @@ -537,4 +538,9 @@ void sst_fill_header_dsp(struct ipc_dsp_hdr *dsp, int msg, int sst_register(struct device *); int sst_unregister(struct device *);
+int sst_alloc_drv_context(struct intel_sst_drv **ctx, + struct device *dev, unsigned int dev_id); +int sst_context_init(struct intel_sst_drv *ctx); +void sst_context_cleanup(struct intel_sst_drv *ctx); +void sst_configure_runtime_pm(struct intel_sst_drv *ctx); #endif diff --git a/sound/soc/intel/sst/sst_pci.c b/sound/soc/intel/sst/sst_pci.c new file mode 100644 index 0000000..c7eb28b --- /dev/null +++ b/sound/soc/intel/sst/sst_pci.c @@ -0,0 +1,225 @@ +/* + * sst_pci.c - SST (LPE) driver init file for pci enumeration. + * + * Copyright (C) 2008-14 Intel Corp + * Authors: Vinod Koul vinod.koul@intel.com + * Harsha Priya priya.harsha@intel.com + * Dharageswari R dharageswari.r@intel.com + * KP Jeeja jeeja.kp@intel.com + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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/module.h> +#include <linux/pci.h> +#include <linux/fs.h> +#include <linux/firmware.h> +#include <linux/pm_runtime.h> +#include <sound/core.h> +#include <sound/soc.h> +#include <asm/platform_sst_audio.h> +#include "../sst-mfld-platform.h" +#include "sst.h" + +static int sst_platform_get_resources(struct intel_sst_drv *ctx) +{ + int ddr_base, ret = 0; + struct pci_dev *pci = ctx->pci; + + ret = pci_request_regions(pci, SST_DRV_NAME); + if (ret) + return ret; + + /* map registers */ + /* DDR base */ + if (ctx->dev_id == SST_MRFLD_PCI_ID) { + ctx->ddr_base = pci_resource_start(pci, 0); + /* check that the relocated IMR base matches with FW Binary */ + ddr_base = relocate_imr_addr_mrfld(ctx->ddr_base); + if (!ctx->pdata->lib_info) { + dev_err(ctx->dev, "lib_info pointer NULL\n"); + ret = -EINVAL; + goto do_release_regions; + } + if (ddr_base != ctx->pdata->lib_info->mod_base) { + dev_err(ctx->dev, + "FW LSP DDR BASE does not match with IFWI\n"); + ret = -EINVAL; + goto do_release_regions; + } + ctx->ddr_end = pci_resource_end(pci, 0); + + ctx->ddr = pcim_iomap(pci, 0, + pci_resource_len(pci, 0)); + if (!ctx->ddr) { + ret = -EINVAL; + goto do_release_regions; + } + dev_dbg(ctx->dev, "sst: DDR Ptr %p\n", ctx->ddr); + } else { + ctx->ddr = NULL; + } + /* SHIM */ + ctx->shim_phy_add = pci_resource_start(pci, 1); + ctx->shim = pcim_iomap(pci, 1, pci_resource_len(pci, 1)); + if (!ctx->shim) { + ret = -EINVAL; + goto do_release_regions; + } + dev_dbg(ctx->dev, "SST Shim Ptr %p\n", ctx->shim); + + /* Shared SRAM */ + ctx->mailbox_add = pci_resource_start(pci, 2); + ctx->mailbox = pcim_iomap(pci, 2, pci_resource_len(pci, 2)); + if (!ctx->mailbox) { + ret = -EINVAL; + goto do_release_regions; + } + dev_dbg(ctx->dev, "SRAM Ptr %p\n", ctx->mailbox); + + /* IRAM */ + ctx->iram_end = pci_resource_end(pci, 3); + ctx->iram_base = pci_resource_start(pci, 3); + ctx->iram = pcim_iomap(pci, 3, pci_resource_len(pci, 3)); + if (!ctx->iram) { + ret = -EINVAL; + goto do_release_regions; + } + dev_dbg(ctx->dev, "IRAM Ptr %p\n", ctx->iram); + + /* DRAM */ + ctx->dram_end = pci_resource_end(pci, 4); + ctx->dram_base = pci_resource_start(pci, 4); + ctx->dram = pcim_iomap(pci, 4, pci_resource_len(pci, 4)); + if (!ctx->dram) { + ret = -EINVAL; + goto do_release_regions; + } + dev_dbg(ctx->dev, "DRAM Ptr %p\n", ctx->dram); +do_release_regions: + pci_release_regions(pci); + return 0; +} + +/* + * intel_sst_probe - PCI probe function + * + * @pci: PCI device structure + * @pci_id: PCI device ID structure + * + */ +static int intel_sst_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) +{ + int ret = 0; + struct intel_sst_drv *sst_drv_ctx; + struct sst_platform_info *sst_pdata = pci->dev.platform_data; + + dev_dbg(&pci->dev, "Probe for DID %x\n", pci->device); + ret = sst_alloc_drv_context(&sst_drv_ctx, &pci->dev, pci->device); + if (ret < 0) + return ret; + + sst_drv_ctx->pdata = sst_pdata; + sst_drv_ctx->irq_num = pci->irq; + ret = sst_context_init(sst_drv_ctx); + if (ret < 0) + goto do_free_drv_ctx; + + /* Init the device */ + ret = pcim_enable_device(pci); + if (ret) { + dev_err(sst_drv_ctx->dev, + "device can't be enabled. Returned err: %d\n", ret); + goto do_destroy_wq; + } + sst_drv_ctx->pci = pci_dev_get(pci); + ret = sst_platform_get_resources(sst_drv_ctx); + if (ret < 0) + goto do_destroy_wq; + + sst_set_fw_state_locked(sst_drv_ctx, SST_RESET); + snprintf(sst_drv_ctx->firmware_name, sizeof(sst_drv_ctx->firmware_name), + "%s%04x%s", "fw_sst_", + sst_drv_ctx->dev_id, ".bin"); + dev_dbg(sst_drv_ctx->dev, + "Requesting FW %s now...\n", sst_drv_ctx->firmware_name); + ret = request_firmware_nowait(THIS_MODULE, 1, + sst_drv_ctx->firmware_name, sst_drv_ctx->dev, + GFP_KERNEL, sst_drv_ctx, sst_firmware_load_cb); + + if (ret) { + dev_err(sst_drv_ctx->dev, + "Firmware load failed with error: %d\n", ret); + goto do_release_regions; + } + + pci_set_drvdata(pci, sst_drv_ctx); + sst_configure_runtime_pm(sst_drv_ctx); + sst_register(sst_drv_ctx->dev); + + return ret; + +do_release_regions: + pci_release_regions(pci); +do_destroy_wq: + destroy_workqueue(sst_drv_ctx->post_msg_wq); +do_free_drv_ctx: + dev_err(sst_drv_ctx->dev, "Probe failed with %d\n", ret); + return ret; +} + +/** + * intel_sst_remove - PCI remove function + * + * @pci: PCI device structure + * + * This function is called by OS when a device is unloaded + * This frees the interrupt etc + */ +static void intel_sst_remove(struct pci_dev *pci) +{ + struct intel_sst_drv *sst_drv_ctx = pci_get_drvdata(pci); + + sst_context_cleanup(sst_drv_ctx); + pci_dev_put(sst_drv_ctx->pci); + pci_release_regions(pci); + pci_set_drvdata(pci, NULL); +} + +/* PCI Routines */ +static struct pci_device_id intel_sst_ids[] = { + { PCI_VDEVICE(INTEL, SST_MRFLD_PCI_ID), 0}, + { 0, } +}; + +static struct pci_driver sst_driver = { + .name = SST_DRV_NAME, + .id_table = intel_sst_ids, + .probe = intel_sst_probe, + .remove = intel_sst_remove, +#ifdef CONFIG_PM + .driver = { + .pm = &intel_sst_pm, + }, +#endif +}; + +module_pci_driver(sst_driver); + +MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine PCI Driver"); +MODULE_AUTHOR("Vinod Koul vinod.koul@intel.com"); +MODULE_AUTHOR("Harsha Priya priya.harsha@intel.com"); +MODULE_AUTHOR("Dharageswari R dharageswari.r@intel.com"); +MODULE_AUTHOR("KP Jeeja jeeja.kp@intel.com"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("sst");