diff options
author | Jie Yang <yang.jie@intel.com> | 2015-04-02 15:37:04 +0800 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2015-04-06 17:49:45 +0100 |
commit | b97169da06992ef04081e66ed22bbdb23dbf6610 (patch) | |
tree | 81e719f60576c2c32edb1f7e75760062f96ceb46 /sound/soc/intel/sst/sst_ipc.c | |
parent | 66a6fd9846f0aecdbab9324b792b319fd8e95e77 (diff) |
ASoC: Intel: create atom folder and move atom platform files in
Restructure the sound/soc/intel/ directory: create atom folder, and move
sst atom platform files here.
Signed-off-by: Jie Yang <yang.jie@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/sst/sst_ipc.c')
-rw-r--r-- | sound/soc/intel/sst/sst_ipc.c | 373 |
1 files changed, 0 insertions, 373 deletions
diff --git a/sound/soc/intel/sst/sst_ipc.c b/sound/soc/intel/sst/sst_ipc.c deleted file mode 100644 index 3943ae856c31..000000000000 --- a/sound/soc/intel/sst/sst_ipc.c +++ /dev/null @@ -1,373 +0,0 @@ -/* - * sst_ipc.c - Intel SST Driver for audio engine - * - * Copyright (C) 2008-14 Intel Corporation - * 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/pci.h> -#include <linux/firmware.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/pm_runtime.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 "../common/sst-dsp.h" - -struct sst_block *sst_create_block(struct intel_sst_drv *ctx, - u32 msg_id, u32 drv_id) -{ - struct sst_block *msg = NULL; - - dev_dbg(ctx->dev, "Enter\n"); - msg = kzalloc(sizeof(*msg), GFP_KERNEL); - if (!msg) - return NULL; - msg->condition = false; - msg->on = true; - msg->msg_id = msg_id; - msg->drv_id = drv_id; - spin_lock_bh(&ctx->block_lock); - list_add_tail(&msg->node, &ctx->block_list); - spin_unlock_bh(&ctx->block_lock); - - return msg; -} - -/* - * while handling the interrupts, we need to check for message status and - * then if we are blocking for a message - * - * here we are unblocking the blocked ones, this is based on id we have - * passed and search that for block threads. - * We will not find block in two cases - * a) when its small message and block in not there, so silently ignore - * them - * b) when we are actually not able to find the block (bug perhaps) - * - * Since we have bit of small messages we can spam kernel log with err - * print on above so need to keep as debug prints which should be enabled - * via dynamic debug while debugging IPC issues - */ -int sst_wake_up_block(struct intel_sst_drv *ctx, int result, - u32 drv_id, u32 ipc, void *data, u32 size) -{ - struct sst_block *block = NULL; - - dev_dbg(ctx->dev, "Enter\n"); - - spin_lock_bh(&ctx->block_lock); - list_for_each_entry(block, &ctx->block_list, node) { - dev_dbg(ctx->dev, "Block ipc %d, drv_id %d\n", block->msg_id, - block->drv_id); - if (block->msg_id == ipc && block->drv_id == drv_id) { - dev_dbg(ctx->dev, "free up the block\n"); - block->ret_code = result; - block->data = data; - block->size = size; - block->condition = true; - spin_unlock_bh(&ctx->block_lock); - wake_up(&ctx->wait_queue); - return 0; - } - } - spin_unlock_bh(&ctx->block_lock); - dev_dbg(ctx->dev, - "Block not found or a response received for a short msg for ipc %d, drv_id %d\n", - ipc, drv_id); - return -EINVAL; -} - -int sst_free_block(struct intel_sst_drv *ctx, struct sst_block *freed) -{ - struct sst_block *block = NULL, *__block; - - dev_dbg(ctx->dev, "Enter\n"); - spin_lock_bh(&ctx->block_lock); - list_for_each_entry_safe(block, __block, &ctx->block_list, node) { - if (block == freed) { - pr_debug("pvt_id freed --> %d\n", freed->drv_id); - /* toggle the index position of pvt_id */ - list_del(&freed->node); - spin_unlock_bh(&ctx->block_lock); - kfree(freed->data); - freed->data = NULL; - kfree(freed); - return 0; - } - } - spin_unlock_bh(&ctx->block_lock); - dev_err(ctx->dev, "block is already freed!!!\n"); - return -EINVAL; -} - -int sst_post_message_mrfld(struct intel_sst_drv *sst_drv_ctx, - struct ipc_post *ipc_msg, bool sync) -{ - struct ipc_post *msg = ipc_msg; - union ipc_header_mrfld header; - unsigned int loop_count = 0; - int retval = 0; - unsigned long irq_flags; - - dev_dbg(sst_drv_ctx->dev, "Enter: sync: %d\n", sync); - spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags); - header.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCX); - if (sync) { - while (header.p.header_high.part.busy) { - if (loop_count > 25) { - dev_err(sst_drv_ctx->dev, - "sst: Busy wait failed, cant send this msg\n"); - retval = -EBUSY; - goto out; - } - cpu_relax(); - loop_count++; - header.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCX); - } - } else { - if (list_empty(&sst_drv_ctx->ipc_dispatch_list)) { - /* queue is empty, nothing to send */ - spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags); - dev_dbg(sst_drv_ctx->dev, - "Empty msg queue... NO Action\n"); - return 0; - } - - if (header.p.header_high.part.busy) { - spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags); - dev_dbg(sst_drv_ctx->dev, "Busy not free... post later\n"); - return 0; - } - - /* copy msg from list */ - msg = list_entry(sst_drv_ctx->ipc_dispatch_list.next, - struct ipc_post, node); - list_del(&msg->node); - } - dev_dbg(sst_drv_ctx->dev, "sst: Post message: header = %x\n", - msg->mrfld_header.p.header_high.full); - dev_dbg(sst_drv_ctx->dev, "sst: size = 0x%x\n", - msg->mrfld_header.p.header_low_payload); - - if (msg->mrfld_header.p.header_high.part.large) - memcpy_toio(sst_drv_ctx->mailbox + SST_MAILBOX_SEND, - msg->mailbox_data, - msg->mrfld_header.p.header_low_payload); - - sst_shim_write64(sst_drv_ctx->shim, SST_IPCX, msg->mrfld_header.full); - -out: - spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags); - kfree(msg->mailbox_data); - kfree(msg); - return retval; -} - -void intel_sst_clear_intr_mrfld(struct intel_sst_drv *sst_drv_ctx) -{ - union interrupt_reg_mrfld isr; - union interrupt_reg_mrfld imr; - union ipc_header_mrfld clear_ipc; - unsigned long irq_flags; - - spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags); - imr.full = sst_shim_read64(sst_drv_ctx->shim, SST_IMRX); - isr.full = sst_shim_read64(sst_drv_ctx->shim, SST_ISRX); - - /* write 1 to clear*/ - isr.part.busy_interrupt = 1; - sst_shim_write64(sst_drv_ctx->shim, SST_ISRX, isr.full); - - /* Set IA done bit */ - clear_ipc.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCD); - - clear_ipc.p.header_high.part.busy = 0; - clear_ipc.p.header_high.part.done = 1; - clear_ipc.p.header_low_payload = IPC_ACK_SUCCESS; - sst_shim_write64(sst_drv_ctx->shim, SST_IPCD, clear_ipc.full); - /* un mask busy interrupt */ - imr.part.busy_interrupt = 0; - sst_shim_write64(sst_drv_ctx->shim, SST_IMRX, imr.full); - spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags); -} - - -/* - * process_fw_init - process the FW init msg - * - * @msg: IPC message mailbox data from FW - * - * This function processes the FW init msg from FW - * marks FW state and prints debug info of loaded FW - */ -static void process_fw_init(struct intel_sst_drv *sst_drv_ctx, - void *msg) -{ - struct ipc_header_fw_init *init = - (struct ipc_header_fw_init *)msg; - int retval = 0; - - dev_dbg(sst_drv_ctx->dev, "*** FW Init msg came***\n"); - if (init->result) { - sst_set_fw_state_locked(sst_drv_ctx, SST_RESET); - dev_err(sst_drv_ctx->dev, "FW Init failed, Error %x\n", - init->result); - retval = init->result; - goto ret; - } - -ret: - sst_wake_up_block(sst_drv_ctx, retval, FW_DWNL_ID, 0 , NULL, 0); -} - -static void process_fw_async_msg(struct intel_sst_drv *sst_drv_ctx, - struct ipc_post *msg) -{ - u32 msg_id; - int str_id; - u32 data_size, i; - void *data_offset; - struct stream_info *stream; - union ipc_header_high msg_high; - u32 msg_low, pipe_id; - - msg_high = msg->mrfld_header.p.header_high; - msg_low = msg->mrfld_header.p.header_low_payload; - msg_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->cmd_id; - data_offset = (msg->mailbox_data + sizeof(struct ipc_dsp_hdr)); - data_size = msg_low - (sizeof(struct ipc_dsp_hdr)); - - switch (msg_id) { - case IPC_SST_PERIOD_ELAPSED_MRFLD: - pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id; - str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id); - if (str_id > 0) { - dev_dbg(sst_drv_ctx->dev, - "Period elapsed rcvd for pipe id 0x%x\n", - pipe_id); - stream = &sst_drv_ctx->streams[str_id]; - if (stream->period_elapsed) - stream->period_elapsed(stream->pcm_substream); - if (stream->compr_cb) - stream->compr_cb(stream->compr_cb_param); - } - break; - - case IPC_IA_DRAIN_STREAM_MRFLD: - pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id; - str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id); - if (str_id > 0) { - stream = &sst_drv_ctx->streams[str_id]; - if (stream->drain_notify) - stream->drain_notify(stream->drain_cb_param); - } - break; - - case IPC_IA_FW_ASYNC_ERR_MRFLD: - dev_err(sst_drv_ctx->dev, "FW sent async error msg:\n"); - for (i = 0; i < (data_size/4); i++) - print_hex_dump(KERN_DEBUG, NULL, DUMP_PREFIX_NONE, - 16, 4, data_offset, data_size, false); - break; - - case IPC_IA_FW_INIT_CMPLT_MRFLD: - process_fw_init(sst_drv_ctx, data_offset); - break; - - case IPC_IA_BUF_UNDER_RUN_MRFLD: - pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id; - str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id); - if (str_id > 0) - dev_err(sst_drv_ctx->dev, - "Buffer under-run for pipe:%#x str_id:%d\n", - pipe_id, str_id); - break; - - default: - dev_err(sst_drv_ctx->dev, - "Unrecognized async msg from FW msg_id %#x\n", msg_id); - } -} - -void sst_process_reply_mrfld(struct intel_sst_drv *sst_drv_ctx, - struct ipc_post *msg) -{ - unsigned int drv_id; - void *data; - union ipc_header_high msg_high; - u32 msg_low; - struct ipc_dsp_hdr *dsp_hdr; - unsigned int cmd_id; - - msg_high = msg->mrfld_header.p.header_high; - msg_low = msg->mrfld_header.p.header_low_payload; - - dev_dbg(sst_drv_ctx->dev, "IPC process message header %x payload %x\n", - msg->mrfld_header.p.header_high.full, - msg->mrfld_header.p.header_low_payload); - - drv_id = msg_high.part.drv_id; - - /* Check for async messages first */ - if (drv_id == SST_ASYNC_DRV_ID) { - /*FW sent async large message*/ - process_fw_async_msg(sst_drv_ctx, msg); - return; - } - - /* FW sent short error response for an IPC */ - if (msg_high.part.result && drv_id && !msg_high.part.large) { - /* 32-bit FW error code in msg_low */ - dev_err(sst_drv_ctx->dev, "FW sent error response 0x%x", msg_low); - sst_wake_up_block(sst_drv_ctx, msg_high.part.result, - msg_high.part.drv_id, - msg_high.part.msg_id, NULL, 0); - return; - } - - /* - * Process all valid responses - * if it is a large message, the payload contains the size to - * copy from mailbox - **/ - if (msg_high.part.large) { - data = kzalloc(msg_low, GFP_KERNEL); - if (!data) - return; - memcpy(data, (void *) msg->mailbox_data, msg_low); - /* Copy command id so that we can use to put sst to reset */ - dsp_hdr = (struct ipc_dsp_hdr *)data; - cmd_id = dsp_hdr->cmd_id; - dev_dbg(sst_drv_ctx->dev, "cmd_id %d\n", dsp_hdr->cmd_id); - if (sst_wake_up_block(sst_drv_ctx, msg_high.part.result, - msg_high.part.drv_id, - msg_high.part.msg_id, data, msg_low)) - kfree(data); - } else { - sst_wake_up_block(sst_drv_ctx, msg_high.part.result, - msg_high.part.drv_id, - msg_high.part.msg_id, NULL, 0); - } - -} |