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path: root/drivers/staging/intel_sst/intel_sst_dsp.c
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Diffstat (limited to 'drivers/staging/intel_sst/intel_sst_dsp.c')
-rw-r--r--drivers/staging/intel_sst/intel_sst_dsp.c496
1 files changed, 0 insertions, 496 deletions
diff --git a/drivers/staging/intel_sst/intel_sst_dsp.c b/drivers/staging/intel_sst/intel_sst_dsp.c
deleted file mode 100644
index 426d2b92073a..000000000000
--- a/drivers/staging/intel_sst/intel_sst_dsp.c
+++ /dev/null
@@ -1,496 +0,0 @@
-/*
- * intel_sst_dsp.c - Intel SST Driver for audio engine
- *
- * Copyright (C) 2008-10 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.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This driver exposes the audio engine functionalities to the ALSA
- * and middleware.
- *
- * This file contains all dsp controlling functions like firmware download,
- * setting/resetting dsp cores, etc
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/fs.h>
-#include <linux/firmware.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-
-
-/**
- * intel_sst_reset_dsp_mrst - Resetting SST DSP
- *
- * This resets DSP in case of MRST platfroms
- */
-static int intel_sst_reset_dsp_mrst(void)
-{
- union config_status_reg csr;
-
- pr_debug("Resetting the DSP in mrst\n");
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.full |= 0x382;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.part.strb_cntr_rst = 0;
- csr.part.run_stall = 0x1;
- csr.part.bypass = 0x7;
- csr.part.sst_reset = 0x1;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
- return 0;
-}
-
-/**
- * intel_sst_reset_dsp_medfield - Resetting SST DSP
- *
- * This resets DSP in case of Medfield platfroms
- */
-static int intel_sst_reset_dsp_medfield(void)
-{
- union config_status_reg csr;
-
- pr_debug("Resetting the DSP in medfield\n");
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.full |= 0x382;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
- return 0;
-}
-
-/**
- * sst_start_mrst - Start the SST DSP processor
- *
- * This starts the DSP in MRST platfroms
- */
-static int sst_start_mrst(void)
-{
- union config_status_reg csr;
-
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.part.bypass = 0;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
- csr.part.run_stall = 0;
- csr.part.sst_reset = 0;
- csr.part.strb_cntr_rst = 1;
- pr_debug("Setting SST to execute_mrst 0x%x\n", csr.full);
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
- return 0;
-}
-
-/**
- * sst_start_medfield - Start the SST DSP processor
- *
- * This starts the DSP in Medfield platfroms
- */
-static int sst_start_medfield(void)
-{
- union config_status_reg csr;
-
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.part.bypass = 0;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.part.mfld_strb = 1;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.part.run_stall = 0;
- csr.part.sst_reset = 0;
- pr_debug("Starting the DSP_medfld %x\n", csr.full);
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
- pr_debug("Starting the DSP_medfld\n");
-
- return 0;
-}
-
-/**
- * sst_parse_module - Parse audio FW modules
- *
- * @module: FW module header
- *
- * Parses modules that need to be placed in SST IRAM and DRAM
- * returns error or 0 if module sizes are proper
- */
-static int sst_parse_module(struct fw_module_header *module)
-{
- struct dma_block_info *block;
- u32 count;
- void __iomem *ram;
-
- pr_debug("module sign %s size %x blocks %x type %x\n",
- module->signature, module->mod_size,
- module->blocks, module->type);
- pr_debug("module entrypoint 0x%x\n", module->entry_point);
-
- block = (void *)module + sizeof(*module);
-
- for (count = 0; count < module->blocks; count++) {
- if (block->size <= 0) {
- pr_err("block size invalid\n");
- return -EINVAL;
- }
- switch (block->type) {
- case SST_IRAM:
- ram = sst_drv_ctx->iram;
- break;
- case SST_DRAM:
- ram = sst_drv_ctx->dram;
- break;
- default:
- pr_err("wrong ram type0x%x in block0x%x\n",
- block->type, count);
- return -EINVAL;
- }
- memcpy_toio(ram + block->ram_offset,
- (void *)block + sizeof(*block), block->size);
- block = (void *)block + sizeof(*block) + block->size;
- }
- return 0;
-}
-
-/**
- * sst_parse_fw_image - parse and load FW
- *
- * @sst_fw: pointer to audio fw
- *
- * This function is called to parse and download the FW image
- */
-static int sst_parse_fw_image(const struct firmware *sst_fw)
-{
- struct fw_header *header;
- u32 count;
- int ret_val;
- struct fw_module_header *module;
-
- BUG_ON(!sst_fw);
-
- /* Read the header information from the data pointer */
- header = (struct fw_header *)sst_fw->data;
-
- /* verify FW */
- if ((strncmp(header->signature, SST_FW_SIGN, 4) != 0) ||
- (sst_fw->size != header->file_size + sizeof(*header))) {
- /* Invalid FW signature */
- pr_err("Invalid FW sign/filesize mismatch\n");
- return -EINVAL;
- }
- pr_debug("header sign=%s size=%x modules=%x fmt=%x size=%x\n",
- header->signature, header->file_size, header->modules,
- header->file_format, sizeof(*header));
- module = (void *)sst_fw->data + sizeof(*header);
- for (count = 0; count < header->modules; count++) {
- /* module */
- ret_val = sst_parse_module(module);
- if (ret_val)
- return ret_val;
- module = (void *)module + sizeof(*module) + module->mod_size ;
- }
-
- return 0;
-}
-
-/**
- * sst_load_fw - function to load FW into DSP
- *
- * @fw: Pointer to driver loaded FW
- * @context: driver context
- *
- * This function is called by OS when the FW is loaded into kernel
- */
-int sst_load_fw(const struct firmware *fw, void *context)
-{
- int ret_val;
-
- pr_debug("load_fw called\n");
- BUG_ON(!fw);
-
- if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
- ret_val = intel_sst_reset_dsp_mrst();
- else if (sst_drv_ctx->pci_id == SST_MFLD_PCI_ID)
- ret_val = intel_sst_reset_dsp_medfield();
- if (ret_val)
- return ret_val;
-
- ret_val = sst_parse_fw_image(fw);
- if (ret_val)
- return ret_val;
- mutex_lock(&sst_drv_ctx->sst_lock);
- sst_drv_ctx->sst_state = SST_FW_LOADED;
- mutex_unlock(&sst_drv_ctx->sst_lock);
- /* 7. ask scu to reset the bypass bits */
- /* 8.bring sst out of reset */
- if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
- ret_val = sst_start_mrst();
- else if (sst_drv_ctx->pci_id == SST_MFLD_PCI_ID)
- ret_val = sst_start_medfield();
- if (ret_val)
- return ret_val;
-
- pr_debug("fw loaded successful!!!\n");
- return ret_val;
-}
-
-/*This function is called when any codec/post processing library
- needs to be downloaded*/
-static int sst_download_library(const struct firmware *fw_lib,
- struct snd_sst_lib_download_info *lib)
-{
- /* send IPC message and wait */
- int i;
- u8 pvt_id;
- struct ipc_post *msg = NULL;
- union config_status_reg csr;
- struct snd_sst_str_type str_type = {0};
- int retval = 0;
-
- if (sst_create_large_msg(&msg))
- return -ENOMEM;
-
- pvt_id = sst_assign_pvt_id(sst_drv_ctx);
- i = sst_get_block_stream(sst_drv_ctx);
- pr_debug("alloc block allocated = %d, pvt_id %d\n", i, pvt_id);
- if (i < 0) {
- kfree(msg);
- return -ENOMEM;
- }
- sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
- sst_fill_header(&msg->header, IPC_IA_PREP_LIB_DNLD, 1, pvt_id);
- msg->header.part.data = sizeof(u32) + sizeof(str_type);
- str_type.codec_type = lib->dload_lib.lib_info.lib_type;
- /*str_type.pvt_id = pvt_id;*/
- memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
- memcpy(msg->mailbox_data + sizeof(u32), &str_type, sizeof(str_type));
- spin_lock(&sst_drv_ctx->list_spin_lock);
- list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
- spin_unlock(&sst_drv_ctx->list_spin_lock);
- sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
- retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]);
- if (retval) {
- /* error */
- sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
- pr_err("Prep codec downloaded failed %d\n",
- retval);
- return -EIO;
- }
- pr_debug("FW responded, ready for download now...\n");
- /* downloading on success */
- mutex_lock(&sst_drv_ctx->sst_lock);
- sst_drv_ctx->sst_state = SST_FW_LOADED;
- mutex_unlock(&sst_drv_ctx->sst_lock);
- csr.full = readl(sst_drv_ctx->shim + SST_CSR);
- csr.part.run_stall = 1;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.part.bypass = 0x7;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
- sst_parse_fw_image(fw_lib);
-
- /* set the FW to running again */
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.part.bypass = 0x0;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
- csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
- csr.part.run_stall = 0;
- sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
- /* send download complete and wait */
- if (sst_create_large_msg(&msg)) {
- sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
- return -ENOMEM;
- }
-
- sst_fill_header(&msg->header, IPC_IA_LIB_DNLD_CMPLT, 1, pvt_id);
- sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
- msg->header.part.data = sizeof(u32) + sizeof(*lib);
- lib->pvt_id = pvt_id;
- memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
- memcpy(msg->mailbox_data + sizeof(u32), lib, sizeof(*lib));
- spin_lock(&sst_drv_ctx->list_spin_lock);
- list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
- spin_unlock(&sst_drv_ctx->list_spin_lock);
- sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
- pr_debug("Waiting for FW response Download complete\n");
- sst_drv_ctx->alloc_block[i].ops_block.condition = false;
- retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]);
- if (retval) {
- /* error */
- mutex_lock(&sst_drv_ctx->sst_lock);
- sst_drv_ctx->sst_state = SST_UN_INIT;
- mutex_unlock(&sst_drv_ctx->sst_lock);
- sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
- return -EIO;
- }
-
- pr_debug("FW success on Download complete\n");
- sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
- mutex_lock(&sst_drv_ctx->sst_lock);
- sst_drv_ctx->sst_state = SST_FW_RUNNING;
- mutex_unlock(&sst_drv_ctx->sst_lock);
- return 0;
-
-}
-
-/* This function is called before downloading the codec/postprocessing
-library is set for download to SST DSP*/
-static int sst_validate_library(const struct firmware *fw_lib,
- struct lib_slot_info *slot,
- u32 *entry_point)
-{
- struct fw_header *header;
- struct fw_module_header *module;
- struct dma_block_info *block;
- unsigned int n_blk, isize = 0, dsize = 0;
- int err = 0;
-
- header = (struct fw_header *)fw_lib->data;
- if (header->modules != 1) {
- pr_err("Module no mismatch found\n");
- err = -EINVAL;
- goto exit;
- }
- module = (void *)fw_lib->data + sizeof(*header);
- *entry_point = module->entry_point;
- pr_debug("Module entry point 0x%x\n", *entry_point);
- pr_debug("Module Sign %s, Size 0x%x, Blocks 0x%x Type 0x%x\n",
- module->signature, module->mod_size,
- module->blocks, module->type);
-
- block = (void *)module + sizeof(*module);
- for (n_blk = 0; n_blk < module->blocks; n_blk++) {
- switch (block->type) {
- case SST_IRAM:
- isize += block->size;
- break;
- case SST_DRAM:
- dsize += block->size;
- break;
- default:
- pr_err("Invalid block type for 0x%x\n", n_blk);
- err = -EINVAL;
- goto exit;
- }
- block = (void *)block + sizeof(*block) + block->size;
- }
- if (isize > slot->iram_size || dsize > slot->dram_size) {
- pr_err("library exceeds size allocated\n");
- err = -EINVAL;
- goto exit;
- } else
- pr_debug("Library is safe for download...\n");
-
- pr_debug("iram 0x%x, dram 0x%x, iram 0x%x, dram 0x%x\n",
- isize, dsize, slot->iram_size, slot->dram_size);
-exit:
- return err;
-
-}
-
-/* This function is called when FW requests for a particular library download
-This function prepares the library to download*/
-int sst_load_library(struct snd_sst_lib_download *lib, u8 ops)
-{
- char buf[20];
- const char *type, *dir;
- int len = 0, error = 0;
- u32 entry_point;
- const struct firmware *fw_lib;
- struct snd_sst_lib_download_info dload_info = {{{0},},};
-
- memset(buf, 0, sizeof(buf));
-
- pr_debug("Lib Type 0x%x, Slot 0x%x, ops 0x%x\n",
- lib->lib_info.lib_type, lib->slot_info.slot_num, ops);
- pr_debug("Version 0x%x, name %s, caps 0x%x media type 0x%x\n",
- lib->lib_info.lib_version, lib->lib_info.lib_name,
- lib->lib_info.lib_caps, lib->lib_info.media_type);
-
- pr_debug("IRAM Size 0x%x, offset 0x%x\n",
- lib->slot_info.iram_size, lib->slot_info.iram_offset);
- pr_debug("DRAM Size 0x%x, offset 0x%x\n",
- lib->slot_info.dram_size, lib->slot_info.dram_offset);
-
- switch (lib->lib_info.lib_type) {
- case SST_CODEC_TYPE_MP3:
- type = "mp3_";
- break;
- case SST_CODEC_TYPE_AAC:
- type = "aac_";
- break;
- case SST_CODEC_TYPE_AACP:
- type = "aac_v1_";
- break;
- case SST_CODEC_TYPE_eAACP:
- type = "aac_v2_";
- break;
- case SST_CODEC_TYPE_WMA9:
- type = "wma9_";
- break;
- default:
- pr_err("Invalid codec type\n");
- error = -EINVAL;
- goto wake;
- }
-
- if (ops == STREAM_OPS_CAPTURE)
- dir = "enc_";
- else
- dir = "dec_";
- len = strlen(type) + strlen(dir);
- strncpy(buf, type, sizeof(buf)-1);
- strncpy(buf + strlen(type), dir, sizeof(buf)-strlen(type)-1);
- len += snprintf(buf + len, sizeof(buf) - len, "%d",
- lib->slot_info.slot_num);
- len += snprintf(buf + len, sizeof(buf) - len, ".bin");
-
- pr_debug("Requesting %s\n", buf);
-
- error = request_firmware(&fw_lib, buf, &sst_drv_ctx->pci->dev);
- if (error) {
- pr_err("library load failed %d\n", error);
- goto wake;
- }
- error = sst_validate_library(fw_lib, &lib->slot_info, &entry_point);
- if (error)
- goto wake_free;
-
- lib->mod_entry_pt = entry_point;
- memcpy(&dload_info.dload_lib, lib, sizeof(*lib));
- error = sst_download_library(fw_lib, &dload_info);
- if (error)
- goto wake_free;
-
- /* lib is downloaded and init send alloc again */
- pr_debug("Library is downloaded now...\n");
-wake_free:
- /* sst_wake_up_alloc_block(sst_drv_ctx, pvt_id, error, NULL); */
- release_firmware(fw_lib);
-wake:
- return error;
-}
-
generated by cgit (git 2.34.1) at 2024-06-12 11:41:07 +0000