438 lines
12 KiB
C
438 lines
12 KiB
C
/*
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* sst_stream.c - Intel SST Driver for audio engine
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*
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* Copyright (C) 2008-14 Intel Corp
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* Authors: Vinod Koul <vinod.koul@intel.com>
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* Harsha Priya <priya.harsha@intel.com>
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* Dharageswari R <dharageswari.r@intel.com>
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* KP Jeeja <jeeja.kp@intel.com>
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#include <linux/pci.h>
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#include <linux/firmware.h>
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#include <linux/sched.h>
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#include <linux/delay.h>
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#include <linux/pm_runtime.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/compress_driver.h>
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#include <asm/platform_sst_audio.h>
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#include "../sst-mfld-platform.h"
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#include "sst.h"
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#include "../../common/sst-dsp.h"
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int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params)
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{
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struct snd_sst_alloc_mrfld alloc_param;
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struct snd_sst_params *str_params;
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struct snd_sst_tstamp fw_tstamp;
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struct stream_info *str_info;
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struct snd_sst_alloc_response *response;
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unsigned int str_id, pipe_id, task_id;
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int i, num_ch, ret = 0;
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void *data = NULL;
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dev_dbg(sst_drv_ctx->dev, "Enter\n");
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BUG_ON(!params);
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str_params = (struct snd_sst_params *)params;
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memset(&alloc_param, 0, sizeof(alloc_param));
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alloc_param.operation = str_params->ops;
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alloc_param.codec_type = str_params->codec;
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alloc_param.sg_count = str_params->aparams.sg_count;
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alloc_param.ring_buf_info[0].addr =
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str_params->aparams.ring_buf_info[0].addr;
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alloc_param.ring_buf_info[0].size =
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str_params->aparams.ring_buf_info[0].size;
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alloc_param.frag_size = str_params->aparams.frag_size;
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memcpy(&alloc_param.codec_params, &str_params->sparams,
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sizeof(struct snd_sst_stream_params));
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/*
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* fill channel map params for multichannel support.
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* Ideally channel map should be received from upper layers
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* for multichannel support.
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* Currently hardcoding as per FW reqm.
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*/
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num_ch = sst_get_num_channel(str_params);
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for (i = 0; i < 8; i++) {
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if (i < num_ch)
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alloc_param.codec_params.uc.pcm_params.channel_map[i] = i;
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else
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alloc_param.codec_params.uc.pcm_params.channel_map[i] = 0xFF;
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}
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str_id = str_params->stream_id;
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str_info = get_stream_info(sst_drv_ctx, str_id);
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if (str_info == NULL) {
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dev_err(sst_drv_ctx->dev, "get stream info returned null\n");
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return -EINVAL;
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}
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pipe_id = str_params->device_type;
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task_id = str_params->task;
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sst_drv_ctx->streams[str_id].pipe_id = pipe_id;
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sst_drv_ctx->streams[str_id].task_id = task_id;
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sst_drv_ctx->streams[str_id].num_ch = num_ch;
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if (sst_drv_ctx->info.lpe_viewpt_rqd)
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alloc_param.ts = sst_drv_ctx->info.mailbox_start +
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sst_drv_ctx->tstamp + (str_id * sizeof(fw_tstamp));
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else
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alloc_param.ts = sst_drv_ctx->mailbox_add +
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sst_drv_ctx->tstamp + (str_id * sizeof(fw_tstamp));
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dev_dbg(sst_drv_ctx->dev, "alloc tstamp location = 0x%x\n",
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alloc_param.ts);
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dev_dbg(sst_drv_ctx->dev, "assigned pipe id 0x%x to task %d\n",
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pipe_id, task_id);
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/* allocate device type context */
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sst_init_stream(&sst_drv_ctx->streams[str_id], alloc_param.codec_type,
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str_id, alloc_param.operation, 0);
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dev_info(sst_drv_ctx->dev, "Alloc for str %d pipe %#x\n",
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str_id, pipe_id);
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ret = sst_prepare_and_post_msg(sst_drv_ctx, task_id, IPC_CMD,
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IPC_IA_ALLOC_STREAM_MRFLD, pipe_id, sizeof(alloc_param),
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&alloc_param, &data, true, true, false, true);
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if (ret < 0) {
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dev_err(sst_drv_ctx->dev, "FW alloc failed ret %d\n", ret);
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/* alloc failed, so reset the state to uninit */
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str_info->status = STREAM_UN_INIT;
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str_id = ret;
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} else if (data) {
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response = (struct snd_sst_alloc_response *)data;
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ret = response->str_type.result;
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if (!ret)
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goto out;
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dev_err(sst_drv_ctx->dev, "FW alloc failed ret %d\n", ret);
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if (ret == SST_ERR_STREAM_IN_USE) {
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dev_err(sst_drv_ctx->dev,
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"FW not in clean state, send free for:%d\n", str_id);
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sst_free_stream(sst_drv_ctx, str_id);
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}
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str_id = -ret;
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}
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out:
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kfree(data);
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return str_id;
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}
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/**
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* sst_start_stream - Send msg for a starting stream
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* @str_id: stream ID
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*
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* This function is called by any function which wants to start
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* a stream.
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*/
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int sst_start_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
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{
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int retval = 0;
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struct stream_info *str_info;
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u16 data = 0;
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dev_dbg(sst_drv_ctx->dev, "sst_start_stream for %d\n", str_id);
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str_info = get_stream_info(sst_drv_ctx, str_id);
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if (!str_info)
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return -EINVAL;
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if (str_info->status != STREAM_RUNNING)
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return -EBADRQC;
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retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id,
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IPC_CMD, IPC_IA_START_STREAM_MRFLD, str_info->pipe_id,
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sizeof(u16), &data, NULL, true, true, true, false);
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return retval;
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}
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int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx,
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struct snd_sst_bytes_v2 *bytes)
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{ struct ipc_post *msg = NULL;
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u32 length;
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int pvt_id, ret = 0;
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struct sst_block *block = NULL;
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dev_dbg(sst_drv_ctx->dev,
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"type:%u ipc_msg:%u block:%u task_id:%u pipe: %#x length:%#x\n",
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bytes->type, bytes->ipc_msg, bytes->block, bytes->task_id,
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bytes->pipe_id, bytes->len);
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if (sst_create_ipc_msg(&msg, true))
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return -ENOMEM;
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pvt_id = sst_assign_pvt_id(sst_drv_ctx);
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sst_fill_header_mrfld(&msg->mrfld_header, bytes->ipc_msg,
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bytes->task_id, 1, pvt_id);
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msg->mrfld_header.p.header_high.part.res_rqd = bytes->block;
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length = bytes->len;
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msg->mrfld_header.p.header_low_payload = length;
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dev_dbg(sst_drv_ctx->dev, "length is %d\n", length);
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memcpy(msg->mailbox_data, &bytes->bytes, bytes->len);
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if (bytes->block) {
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block = sst_create_block(sst_drv_ctx, bytes->ipc_msg, pvt_id);
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if (block == NULL) {
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kfree(msg);
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ret = -ENOMEM;
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goto out;
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}
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}
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sst_add_to_dispatch_list_and_post(sst_drv_ctx, msg);
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dev_dbg(sst_drv_ctx->dev, "msg->mrfld_header.p.header_low_payload:%d",
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msg->mrfld_header.p.header_low_payload);
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if (bytes->block) {
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ret = sst_wait_timeout(sst_drv_ctx, block);
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if (ret) {
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dev_err(sst_drv_ctx->dev, "fw returned err %d\n", ret);
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sst_free_block(sst_drv_ctx, block);
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goto out;
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}
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}
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if (bytes->type == SND_SST_BYTES_GET) {
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/*
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* copy the reply and send back
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* we need to update only sz and payload
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*/
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if (bytes->block) {
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unsigned char *r = block->data;
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dev_dbg(sst_drv_ctx->dev, "read back %d bytes",
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bytes->len);
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memcpy(bytes->bytes, r, bytes->len);
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}
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}
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if (bytes->block)
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sst_free_block(sst_drv_ctx, block);
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out:
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test_and_clear_bit(pvt_id, &sst_drv_ctx->pvt_id);
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return ret;
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}
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/*
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* sst_pause_stream - Send msg for a pausing stream
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* @str_id: stream ID
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*
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* This function is called by any function which wants to pause
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* an already running stream.
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*/
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int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
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{
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int retval = 0;
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struct stream_info *str_info;
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dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_pause_stream for %d\n", str_id);
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str_info = get_stream_info(sst_drv_ctx, str_id);
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if (!str_info)
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return -EINVAL;
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if (str_info->status == STREAM_PAUSED)
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return 0;
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if (str_info->status == STREAM_RUNNING ||
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str_info->status == STREAM_INIT) {
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if (str_info->prev == STREAM_UN_INIT)
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return -EBADRQC;
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retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id, IPC_CMD,
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IPC_IA_PAUSE_STREAM_MRFLD, str_info->pipe_id,
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0, NULL, NULL, true, true, false, true);
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if (retval == 0) {
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str_info->prev = str_info->status;
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str_info->status = STREAM_PAUSED;
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} else if (retval == SST_ERR_INVALID_STREAM_ID) {
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retval = -EINVAL;
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mutex_lock(&sst_drv_ctx->sst_lock);
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sst_clean_stream(str_info);
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mutex_unlock(&sst_drv_ctx->sst_lock);
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}
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} else {
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retval = -EBADRQC;
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dev_dbg(sst_drv_ctx->dev, "SST DBG:BADRQC for stream\n ");
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}
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return retval;
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}
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/**
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* sst_resume_stream - Send msg for resuming stream
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* @str_id: stream ID
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*
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* This function is called by any function which wants to resume
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* an already paused stream.
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*/
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int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
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{
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int retval = 0;
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struct stream_info *str_info;
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dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_resume_stream for %d\n", str_id);
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str_info = get_stream_info(sst_drv_ctx, str_id);
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if (!str_info)
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return -EINVAL;
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if (str_info->status == STREAM_RUNNING)
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return 0;
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if (str_info->status == STREAM_PAUSED) {
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retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id,
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IPC_CMD, IPC_IA_RESUME_STREAM_MRFLD,
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str_info->pipe_id, 0, NULL, NULL,
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true, true, false, true);
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if (!retval) {
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if (str_info->prev == STREAM_RUNNING)
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str_info->status = STREAM_RUNNING;
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else
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str_info->status = STREAM_INIT;
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str_info->prev = STREAM_PAUSED;
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} else if (retval == -SST_ERR_INVALID_STREAM_ID) {
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retval = -EINVAL;
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mutex_lock(&sst_drv_ctx->sst_lock);
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sst_clean_stream(str_info);
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mutex_unlock(&sst_drv_ctx->sst_lock);
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}
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} else {
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retval = -EBADRQC;
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dev_err(sst_drv_ctx->dev, "SST ERR: BADQRC for stream\n");
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}
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return retval;
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}
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/**
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* sst_drop_stream - Send msg for stopping stream
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* @str_id: stream ID
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*
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* This function is called by any function which wants to stop
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* a stream.
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*/
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int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
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{
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int retval = 0;
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struct stream_info *str_info;
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dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_drop_stream for %d\n", str_id);
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str_info = get_stream_info(sst_drv_ctx, str_id);
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if (!str_info)
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return -EINVAL;
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if (str_info->status != STREAM_UN_INIT) {
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str_info->prev = STREAM_UN_INIT;
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str_info->status = STREAM_INIT;
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str_info->cumm_bytes = 0;
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retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id,
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IPC_CMD, IPC_IA_DROP_STREAM_MRFLD,
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str_info->pipe_id, 0, NULL, NULL,
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true, true, true, false);
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} else {
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retval = -EBADRQC;
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dev_dbg(sst_drv_ctx->dev, "BADQRC for stream, state %x\n",
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str_info->status);
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}
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return retval;
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}
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/**
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* sst_drain_stream - Send msg for draining stream
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* @str_id: stream ID
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*
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* This function is called by any function which wants to drain
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* a stream.
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*/
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int sst_drain_stream(struct intel_sst_drv *sst_drv_ctx,
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int str_id, bool partial_drain)
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{
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int retval = 0;
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struct stream_info *str_info;
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dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_drain_stream for %d\n", str_id);
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str_info = get_stream_info(sst_drv_ctx, str_id);
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if (!str_info)
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return -EINVAL;
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if (str_info->status != STREAM_RUNNING &&
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str_info->status != STREAM_INIT &&
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str_info->status != STREAM_PAUSED) {
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dev_err(sst_drv_ctx->dev, "SST ERR: BADQRC for stream = %d\n",
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str_info->status);
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return -EBADRQC;
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}
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retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id, IPC_CMD,
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IPC_IA_DRAIN_STREAM_MRFLD, str_info->pipe_id,
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sizeof(u8), &partial_drain, NULL, true, true, false, false);
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/*
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* with new non blocked drain implementation in core we dont need to
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* wait for respsonse, and need to only invoke callback for drain
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* complete
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*/
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return retval;
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}
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/**
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* sst_free_stream - Frees a stream
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* @str_id: stream ID
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*
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* This function is called by any function which wants to free
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* a stream.
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*/
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int sst_free_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
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{
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int retval = 0;
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struct stream_info *str_info;
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struct intel_sst_ops *ops;
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dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_free_stream for %d\n", str_id);
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mutex_lock(&sst_drv_ctx->sst_lock);
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if (sst_drv_ctx->sst_state == SST_RESET) {
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mutex_unlock(&sst_drv_ctx->sst_lock);
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return -ENODEV;
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}
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mutex_unlock(&sst_drv_ctx->sst_lock);
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str_info = get_stream_info(sst_drv_ctx, str_id);
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if (!str_info)
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return -EINVAL;
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ops = sst_drv_ctx->ops;
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mutex_lock(&str_info->lock);
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if (str_info->status != STREAM_UN_INIT) {
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str_info->prev = str_info->status;
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str_info->status = STREAM_UN_INIT;
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mutex_unlock(&str_info->lock);
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dev_info(sst_drv_ctx->dev, "Free for str %d pipe %#x\n",
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str_id, str_info->pipe_id);
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retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id, IPC_CMD,
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IPC_IA_FREE_STREAM_MRFLD, str_info->pipe_id, 0,
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NULL, NULL, true, true, false, true);
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dev_dbg(sst_drv_ctx->dev, "sst: wait for free returned %d\n",
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retval);
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mutex_lock(&sst_drv_ctx->sst_lock);
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sst_clean_stream(str_info);
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mutex_unlock(&sst_drv_ctx->sst_lock);
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dev_dbg(sst_drv_ctx->dev, "SST DBG:Stream freed\n");
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} else {
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mutex_unlock(&str_info->lock);
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retval = -EBADRQC;
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dev_dbg(sst_drv_ctx->dev, "SST DBG:BADQRC for stream\n");
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}
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return retval;
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}
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