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