From 174aae2c1dcb1b7c49188e13167c21687ef96edc Mon Sep 17 00:00:00 2001 From: R, Dharageswari Date: Thu, 29 Apr 2010 20:26:02 +0530 Subject: [PATCH] ADR-Post-Beta-0.05.002.03-5/8-Moorestown Audio Drivers: SST stream ops module This adds the stream module which contains the function for stream operations & control. For a stream the control and data are two major parts. This module implements the control (play/pause/resume/stop/free/alloc) for a stream. It also implements data play/capture frames where buffers are sent/received to FW. The objective of SST driver is to achieve Low power playback by utilizing DSP as much aspossible. So SST gets large music buffers from player/middleware and sends them to FW in a scatter gather list. The FW decodes and renders them, while IA can goto low power states Signed-off-by: Vinod Koul new file: sound/pci/sst/intel_sst_stream.c Patch-mainline: 2.6.35? --- sound/pci/sst/intel_sst_stream.c | 1658 ++++++++++++++++++++++++++++++++++++++ 1 files changed, 1658 insertions(+), 0 deletions(-) create mode 100644 sound/pci/sst/intel_sst_stream.c diff --git a/sound/pci/sst/intel_sst_stream.c b/sound/pci/sst/intel_sst_stream.c new file mode 100644 index 0000000..07a4e55 --- /dev/null +++ b/sound/pci/sst/intel_sst_stream.c @@ -0,0 +1,1658 @@ +/* + * intel_sst_stream.c - Intel SST Driver for audio engine + * + * Copyright (C) 2008-10 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. + * + * 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 file contains the stream operations of SST driver + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef CONFIG_MSTWN_POWER_MGMT +#include +#endif +#include +#include +#include +#include +#include "intel_sst_fw_ipc.h" +#include "intel_sst_common.h" +/** +* sst_alloc_stream - Send msg for a new stream ID +* @params: stream params +* @stream_ops: operation of stream PB/capture +* @codec: codec for stream +* @session_id: pvt_id passed by MMF to distinguish stream +* +* This function is called by any function which wants to start +* a new stream. This also check if a stream exists which is idle +* it initializes idle stream id to this request +*/ +int sst_alloc_stream(char *params, unsigned int stream_ops, + u8 codec, unsigned int session_id) +{ + struct ipc_post *msg = NULL; + struct snd_sst_alloc_params alloc_param = {{0,},}; + + printk(KERN_DEBUG "SST DBG:entering sst_alloc_stream \n"); + printk(KERN_DEBUG "SST DBG:%d %d %d\n", stream_ops, codec, session_id); + + BUG_ON(!params); + + /* send msg to FW to allocate a stream */ + if (sst_create_large_msg(&msg)) + return -ENOMEM; + + sst_fill_header(&msg->header, IPC_IA_ALLOC_STREAM, 1, 0); + msg->header.part.data = sizeof(alloc_param) + sizeof(u32); + alloc_param.str_type.codec_type = codec; + alloc_param.str_type.str_type = STREAM_TYPE_MUSIC; /* music */ + alloc_param.str_type.operation = stream_ops; + alloc_param.str_type.protected_str = 0; /* non drm */ + alloc_param.str_type.pvt_id = session_id; + memcpy(&alloc_param.stream_params, params, + sizeof(struct snd_sst_stream_params)); + + memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); + memcpy(msg->mailbox_data + sizeof(u32), &alloc_param, + sizeof(alloc_param)); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + printk(KERN_DEBUG "SST DBG:alloc stream done\n"); + return 0; +} + +/** +* sst_get_stream_params - Send msg to query for stream parameters +* @str_id: stream id for which the parameters are queried for +* @get_params: out parameters to which the parameters are copied to +* +* This function is called when the stream parameters are queiried for +*/ +int sst_get_stream_params(int str_id, + struct snd_sst_get_stream_params *get_params) +{ + int retval = 0; + struct ipc_post *msg = NULL; + struct stream_info *str_info; + struct snd_sst_fw_get_stream_params *fw_params; + + printk(KERN_DEBUG "SST DBG:get_stream for %d\n", str_id); + retval = sst_validate_strid(str_id); + if (retval) + return retval; + + str_info = &sst_drv_ctx->streams[str_id]; + if (str_info->status != STREAM_UN_INIT) { + if (str_info->ctrl_blk.on == true) { + printk(KERN_ERR\ + "SST ERR: control path is already in use \n"); + return -EINVAL; + } + if (sst_create_short_msg(&msg)) { + printk(KERN_ERR + "SST ERR: message creation failed\n"); + return -ENOMEM; + } + fw_params = kzalloc(sizeof(*fw_params), GFP_ATOMIC); + if (!fw_params) { + printk(KERN_ERR + "SST ERR: mem allcoation failed\n "); + return -ENOMEM; + } + + sst_fill_header(&msg->header, IPC_IA_GET_STREAM_PARAMS, + 0, str_id); + str_info->ctrl_blk.condition = false; + str_info->ctrl_blk.ret_code = 0; + str_info->ctrl_blk.on = true; + str_info->ctrl_blk.data = (void *) fw_params; + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &str_info->ctrl_blk, SST_BLOCK_TIMEOUT); + if (retval) { + get_params->codec_params.result = retval; + kfree(fw_params); + return -EIO; + } + memcpy(&get_params->pcm_params, &fw_params->pcm_params, + sizeof(fw_params->pcm_params)); + memcpy(&get_params->codec_params.sparams, + &fw_params->codec_params, + sizeof(fw_params->codec_params)); + get_params->codec_params.result = 0; + get_params->codec_params.stream_id = str_id; + get_params->codec_params.codec = str_info->codec; + get_params->codec_params.ops = str_info->ops; + get_params->codec_params.stream_type = str_info->str_type; + kfree(fw_params); + } else { + printk(KERN_DEBUG "SST DBG:Stream is not in the init state\n"); + } + return retval; +} + +/** +* sst_get_fw_info - Send msg to query for firmware configurations +* @info: out param that holds the firmare configurations +* +* This function is called when the firmware configurations are queiried for +*/ +int sst_get_fw_info(struct snd_sst_fw_info *info) +{ + int retval = 0; + struct ipc_post *msg = NULL; + + printk(KERN_DEBUG "SST DBG:...called \n"); + + if (sst_create_short_msg(&msg)) { + printk(KERN_ERR + "SST ERR: message creation failed\n"); + return -ENOMEM; + } + + sst_fill_header(&msg->header, IPC_IA_GET_FW_INFO, 0, 0); + sst_drv_ctx->fw_info_blk.condition = false; + sst_drv_ctx->fw_info_blk.ret_code = 0; + sst_drv_ctx->fw_info_blk.on = true; + sst_drv_ctx->fw_info_blk.data = info; + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &sst_drv_ctx->fw_info_blk, SST_BLOCK_TIMEOUT); + if (retval) { + printk(KERN_ERR \ + "SST ERR: error in fw_info = %d\n", retval); + retval = -EIO; + } + return retval; +} + + +/** +* sst_alloc_stream_response - process alloc reply +* @str_id: stream id for which the stream has been allocated +* @type the stream parameters that are allocated + +* This function is called by firmware as a response to stream allcoation +* request +*/ +int sst_alloc_stream_response(unsigned int str_id, + struct snd_sst_str_type *type) +{ + int retval = 0, i, valid_str = 0; + struct ipc_post *msg = NULL; + + /* allocation succesfull */ + printk(KERN_DEBUG "SST DBG:stream number given = %d \n", str_id); + + for (i = 0; i < MAX_ACTIVE_STREAM; i++) { + if (type->pvt_id == sst_drv_ctx->alloc_block[i].sst_id) { + valid_str = 1; + break; + } + } + if (!valid_str) { + /* this is not valid stream */ + printk(KERN_ERR \ + "SST ERR: Invalid stream allocation detetcted... freeing\n"); + if (sst_create_short_msg(&msg)) + return -ENOMEM; + sst_fill_header(&msg->header, IPC_IA_FREE_STREAM, 0, str_id); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + return 0; + } + + sst_init_stream(&sst_drv_ctx->streams[str_id], type->codec_type, + type->str_type, type->pvt_id, type->operation); + + printk(KERN_DEBUG "SST DBG:stream pvt id = %d \n", type->pvt_id); + + /* Unblock with retval code */ + sst_wake_up_alloc_block(sst_drv_ctx, type->pvt_id, str_id, NULL); + return retval; +} + +/** +* 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(int str_id) +{ + int retval = 0; + struct ipc_post *msg = NULL; + struct stream_info *str_info; + + printk(KERN_DEBUG "SST DBG:sst_pause_stream for %d\n", str_id); + retval = sst_validate_strid(str_id); + if (retval) + return retval; + str_info = &sst_drv_ctx->streams[str_id]; + 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; + if (str_info->ctrl_blk.on == true) { + printk(KERN_ERR \ + "SST ERR: control path is already in use\n "); + return -EINVAL; + } + if (sst_create_short_msg(&msg)) + return -ENOMEM; + + sst_fill_header(&msg->header, IPC_IA_PAUSE_STREAM, 0, str_id); + str_info->ctrl_blk.condition = false; + str_info->ctrl_blk.ret_code = 0; + str_info->ctrl_blk.on = true; + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, + &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &str_info->ctrl_blk, SST_BLOCK_TIMEOUT); + if (retval == 0) { + str_info->prev = str_info->status; + str_info->status = STREAM_PAUSED; + /*sst_ospm_send_event(OSPM_EVENT_SUBSYS_STOP_PLAY);*/ + } else if (retval == SST_ERR_INVALID_STREAM_ID) { + retval = -EINVAL; + sst_clean_stream(str_info); + } + } else { + retval = -EBADRQC; + printk(KERN_ERR "SST ERR: +\ + BADQRC for stream\n "); + } + + return retval; +} +int sst_enable_rx_timeslot(int status) +{ + int retval = 0; + struct ipc_post *msg = NULL; + + if (sst_create_short_msg(&msg)) { + printk(KERN_ERR \ + "SST ERR: short message mem +\ + allocation failed\n"); + return -ENOMEM; + } + printk(KERN_DEBUG "SST DBG:ipc message sending:: **********SST_ENABLE_RX_TIME_SLOT*********** \n"); + sst_fill_header(&msg->header, IPC_IA_ENABLE_RX_TIME_SLOT, 0, 0); + msg->header.part.data = status; + sst_drv_ctx->hs_info_blk.condition = false; + sst_drv_ctx->hs_info_blk.ret_code = 0; + sst_drv_ctx->hs_info_blk.on = true; + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, + &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &sst_drv_ctx->hs_info_blk, SST_BLOCK_TIMEOUT); + 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(int str_id) +{ + int retval = 0; + struct ipc_post *msg = NULL; + struct stream_info *str_info; + + printk(KERN_DEBUG "SST DBG:sst_resume_stream for %d\n", str_id); + retval = sst_validate_strid(str_id); + if (retval) + return retval; + str_info = &sst_drv_ctx->streams[str_id]; + if (str_info->status == STREAM_RUNNING) + return 0; + if (str_info->status == STREAM_PAUSED) { + if (str_info->ctrl_blk.on == true) { + printk(KERN_ERR \ + "SST ERR: control path is already in use\n"); + return -EINVAL; + } + if (sst_create_short_msg(&msg)) { + printk(KERN_ERR \ + "SST ERR: short message mem +\ + allocation failed\n"); + return -ENOMEM; + } + sst_fill_header(&msg->header, IPC_IA_RESUME_STREAM, 0, str_id); + str_info->ctrl_blk.condition = false; + str_info->ctrl_blk.ret_code = 0; + str_info->ctrl_blk.on = true; + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, + &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &str_info->ctrl_blk, SST_BLOCK_TIMEOUT); + if (!retval) { + if (str_info->prev == STREAM_RUNNING) + str_info->status = STREAM_RUNNING; + else + str_info->status = STREAM_INIT; + str_info->prev = STREAM_PAUSED; + /*sst_ospm_send_event(OSPM_EVENT_SUBSYS_START_PLAY);*/ + } else if (retval == -SST_ERR_INVALID_STREAM_ID) { + retval = -EINVAL; + sst_clean_stream(str_info); + } + } else { + retval = -EBADRQC; + printk(KERN_ERR "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(int str_id) +{ + int retval = 0; + struct ipc_post *msg = NULL; + struct sst_stream_bufs *bufs = NULL, *_bufs; + struct stream_info *str_info; + + printk(KERN_DEBUG "SST DBG:sst_drop_stream for %d\n", str_id); + retval = sst_validate_strid(str_id); + if (retval) + return retval; + str_info = &sst_drv_ctx->streams[str_id]; + + if (str_info->status != STREAM_UN_INIT && + str_info->status != STREAM_DECODE) { + if (str_info->ctrl_blk.on == true) { + printk(KERN_ERR \ + "SST ERR: control path is already in use\n"); + return -EINVAL; + } + if (sst_create_short_msg(&msg)) { + printk(KERN_ERR \ + "SST ERR: short message mem +\ + allocation failed\n"); + return -ENOMEM; + } + sst_fill_header(&msg->header, IPC_IA_DROP_STREAM, 0, str_id); + str_info->ctrl_blk.condition = false; + str_info->ctrl_blk.ret_code = 0; + str_info->ctrl_blk.on = true; + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, + &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &str_info->ctrl_blk, SST_BLOCK_TIMEOUT); + if (!retval) { + printk(KERN_DEBUG "SST DBG:drop success\n"); + str_info->prev = STREAM_UN_INIT; + str_info->status = STREAM_INIT; + if (str_info->src != MAD_DRV) { + mutex_lock(&str_info->lock); + list_for_each_entry_safe(bufs, _bufs, + &str_info->bufs, node) { + list_del(&bufs->node); + kfree(bufs); + } + mutex_unlock(&str_info->lock); + } + str_info->cumm_bytes += str_info->curr_bytes; + /*sst_ospm_send_event(OSPM_EVENT_SUBSYS_STOP_PLAY);*/ + } else if (retval == -SST_ERR_INVALID_STREAM_ID) { + retval = -EINVAL; + sst_clean_stream(str_info); + } + if (str_info->data_blk.on == true) { + str_info->data_blk.condition = true; + str_info->data_blk.ret_code = retval; + wake_up(&sst_drv_ctx->wait_queue); + } + } else { + retval = -EBADRQC; + printk(KERN_ERR "SST ERR:BADQRC for stream\n"); + } + 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(int str_id) +{ + int retval = 0; + struct ipc_post *msg = NULL; + struct stream_info *str_info; + + printk(KERN_DEBUG "SST DBG:sst_drain_stream for %d\n", str_id); + retval = sst_validate_strid(str_id); + if (retval) + return retval; + str_info = &sst_drv_ctx->streams[str_id]; + + if (str_info->status != STREAM_RUNNING && + str_info->status != STREAM_INIT && + str_info->status != STREAM_PAUSED) { + printk(KERN_ERR \ + "SST ERR: BADQRC for stream = %d\n", str_info->status); + return -EBADRQC; + } + + if (str_info->status == STREAM_INIT) { + if (sst_create_short_msg(&msg)) { + printk(KERN_ERR\ + "SST ERR: short message mem +\ + allocation failed\n"); + return -ENOMEM; + } + sst_fill_header(&msg->header, IPC_IA_DRAIN_STREAM, 0, str_id); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + } else + str_info->need_draining = true; + str_info->data_blk.condition = false; + str_info->data_blk.ret_code = 0; + str_info->data_blk.on = true; + retval = sst_wait_interruptible(sst_drv_ctx, &str_info->data_blk); + str_info->need_draining = false; + if (retval == -SST_ERR_INVALID_STREAM_ID) { + retval = -EINVAL; + sst_clean_stream(str_info); + } + 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(int str_id) +{ + int retval = 0; + struct ipc_post *msg = NULL; + struct stream_info *str_info; + + printk(KERN_DEBUG "SST DBG:sst_free_stream for %d\n", str_id); + + retval = sst_validate_strid(str_id); + if (retval) + return retval; + str_info = &sst_drv_ctx->streams[str_id]; + + if (str_info->status != STREAM_UN_INIT) { + if (sst_create_short_msg(&msg)) { + printk(KERN_ERR \ + "SST ERR: short message mem +\ + allocation failed\n"); + return -ENOMEM; + } + sst_fill_header(&msg->header, IPC_IA_FREE_STREAM, 0, str_id); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + str_info->prev = str_info->status; + str_info->status = STREAM_UN_INIT; + if (str_info->data_blk.on == true) { + str_info->data_blk.condition = true; + str_info->data_blk.ret_code = 0; + wake_up(&sst_drv_ctx->wait_queue); + } + sst_clean_stream(str_info); + printk(KERN_DEBUG "SST DBG:Stream freed\n"); + /*sst_ospm_send_event(OSPM_EVENT_SUBSYS_STOP_PLAY);*/ + + } else { + retval = -EBADRQC; + printk(KERN_DEBUG "SST DBG:BADQRC for stream\n"); + } + + return retval; +} + + +/** +* sst_set_stream_param - Send msg for setting stream parameters +* @id: stream id +* @params: stream params +* +* This function sets stream params during runtime +*/ +int sst_set_stream_param(int str_id, struct snd_sst_params *str_param) +{ + int retval = 0; + struct ipc_post *msg = NULL; + struct stream_info *str_info; + + BUG_ON(!str_param); + if(sst_drv_ctx->streams[str_id].ops != str_param->ops) { + printk(KERN_ERR "SST ERR: Invalid operation\n"); + return -EINVAL; + } + retval = sst_validate_strid(str_id); + if (retval) + return retval; + printk(KERN_DEBUG "SST DBG:set_stream for %d\n", str_id); + str_info = &sst_drv_ctx->streams[str_id]; + if (sst_drv_ctx->streams[str_id].status == STREAM_INIT) { + if (str_info->ctrl_blk.on == true) { + printk(KERN_ERR \ + "SST ERR: control path is already in use\n"); + return -EINVAL; + } + if (sst_create_large_msg(&msg)) + return -ENOMEM; + + sst_fill_header(&msg->header, + IPC_IA_SET_STREAM_PARAMS, 1, str_id); + str_info->ctrl_blk.condition = false; + str_info->ctrl_blk.ret_code = 0; + str_info->ctrl_blk.on = true; + msg->header.part.data = sizeof(u32) + + sizeof(str_param->sparams); + memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); + memcpy(msg->mailbox_data + sizeof(u32), &str_param->sparams, + sizeof(str_param->sparams)); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &str_info->ctrl_blk, SST_BLOCK_TIMEOUT); + if (retval < 0) { + retval = -EIO; + sst_clean_stream(str_info); + } + } else { + retval = -EBADRQC; + printk(KERN_ERR "SST ERR: BADQRC for stream\n"); + } + return retval; +} + +/** +* sst_get_vol - This fuction allows to get the premix gain or gain of a stream +* @get_vol: this is an output param through which the volume +* structure is passed back to user +* +* This function is called when the premix gain or stream gain is queried for +*/ +int sst_get_vol(struct snd_sst_vol *get_vol) +{ + int retval = 0; + struct ipc_post *msg = NULL; + struct snd_sst_vol *fw_get_vol; + int str_id = get_vol->stream_id; + + printk(KERN_DEBUG "SST DBG:get vol called \n"); + + if (sst_create_short_msg(&msg)) + return -ENOMEM; + + sst_fill_header(&msg->header, + IPC_IA_GET_STREAM_VOL, 0, str_id); + sst_drv_ctx->vol_info_blk.condition = false; + sst_drv_ctx->vol_info_blk.ret_code = 0; + sst_drv_ctx->vol_info_blk.on = true; + fw_get_vol = kzalloc(sizeof(*fw_get_vol), GFP_ATOMIC); + if (!fw_get_vol) { + printk(KERN_ERR "SST ERR: mem +\ + allcoation failed\n"); + return -ENOMEM; + } + sst_drv_ctx->vol_info_blk.data = (void *)fw_get_vol; + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &sst_drv_ctx->vol_info_blk, SST_BLOCK_TIMEOUT); + if (retval) + retval = -EIO; + else { + printk(KERN_DEBUG "SST DBG:stream +\ + id = %d\n", fw_get_vol->stream_id); + printk(KERN_DEBUG "SST DBG:+\ + volume = %d\n", fw_get_vol->volume); + printk(KERN_DEBUG "SST DBG:ramp +\ + dur = %d\n", fw_get_vol->ramp_duration); + printk(KERN_DEBUG "SST DBG:ramp_type +\ + = %d\n", fw_get_vol->ramp_type); + memcpy(get_vol, fw_get_vol, sizeof(*fw_get_vol)); + } + return retval; +} + +/** +* sst_set_vol - This fuction allows to set the premix gain or gain of a stream +* @set_vol: this holds the volume structure that needs to be set +* +* This function is called when premix gain or stream gain is requested to be set +*/ +int sst_set_vol(struct snd_sst_vol *set_vol) +{ + + int retval = 0; + struct ipc_post *msg = NULL; + + printk(KERN_DEBUG "SST DBG:set vol called \n"); + + if (sst_create_large_msg(&msg)) { + printk(KERN_ERR "SST ERR:+\ + message creation failed\n"); + return -ENOMEM; + } + sst_fill_header(&msg->header, IPC_IA_SET_STREAM_VOL, 1, + set_vol->stream_id); + + msg->header.part.data = sizeof(u32) + sizeof(*set_vol); + memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); + memcpy(msg->mailbox_data + sizeof(u32), set_vol, sizeof(*set_vol)); + sst_drv_ctx->vol_info_blk.condition = false; + sst_drv_ctx->vol_info_blk.ret_code = 0; + sst_drv_ctx->vol_info_blk.on = true; + sst_drv_ctx->vol_info_blk.data = set_vol; + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &sst_drv_ctx->vol_info_blk, SST_BLOCK_TIMEOUT); + if (retval) { + printk(KERN_ERR \ + "SST ERR: error in set_vol = %d\n", retval); + retval = -EIO; + } + return retval; +} + +/** +* sst_get_vol - This fuction allows to set premix mute or soft mute of a stream +* @set_mute: this holds the mute structure that needs to be set +* +* This function is called when premix mute or stream mute is requested to be set +*/ +int sst_set_mute(struct snd_sst_mute *set_mute) +{ + + int retval = 0; + struct ipc_post *msg = NULL; + + printk(KERN_DEBUG "SST DBG:set mute called \n"); + + if (sst_create_large_msg(&msg)) { + printk(KERN_ERR "SST ERR: +\ + message creation failed\n"); + return -ENOMEM; + } + sst_fill_header(&msg->header, IPC_IA_SET_STREAM_MUTE, 1, + set_mute->stream_id); + sst_drv_ctx->mute_info_blk.condition = false; + sst_drv_ctx->mute_info_blk.ret_code = 0; + sst_drv_ctx->mute_info_blk.on = true; + sst_drv_ctx->mute_info_blk.data = set_mute; + + msg->header.part.data = sizeof(u32) + sizeof(*set_mute); + memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); + memcpy(msg->mailbox_data + sizeof(u32), set_mute, + sizeof(*set_mute)); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &sst_drv_ctx->mute_info_blk, SST_BLOCK_TIMEOUT); + if (retval) { + printk(KERN_ERR\ + "SST ERR: error in set_mute +\ + = %d\n", retval); + retval = -EIO; + } + return retval; +} + +int sst_parse_target(struct snd_sst_slot_info *slot) +{ + + if (slot->device_type == SND_SST_DEVICE_PCM) { + /*pcm device, check params*/ + if(slot->device_instance == 1) { + if ((slot->device_mode != SND_SST_DEV_MODE_PCM_MODE4_I2S) + && (slot->device_mode != SND_SST_DEV_MODE_PCM_MODE4_RIGHT_JUSTIFIED)) + goto err; + } else if(slot->device_instance == 0) { + if (slot->device_mode != SND_SST_DEV_MODE_PCM_MODE2) + goto err; + if (slot->pcm_params.sfreq != 8000 || + slot->pcm_params.num_chan != 1 || + slot->pcm_params.pcm_wd_sz != 16) + goto err; + + } else { + err: + dev_err(&sst_drv_ctx->pci->dev, "SST ERR: i/p params incorrect\n"); + return -EINVAL; + } + } + /*params ok, now process*/ + if (slot->target_type == SND_SST_TARGET_PMIC && + slot->device_instance == 1) { + sst_drv_ctx->pmic_port_instance = 1; + sst_drv_ctx->scard_ops->set_audio_port(ACTIVATE); + sst_drv_ctx->scard_ops->set_voice_port(DEACTIVATE); + sst_drv_ctx->scard_ops->set_pcm_audio_params( + slot->pcm_params.sfreq, + slot->pcm_params.pcm_wd_sz, + slot->pcm_params.num_chan); + if (sst_drv_ctx->pb_streams ) + sst_drv_ctx->scard_ops->power_up_pmic_pb(1); + if (sst_drv_ctx->cp_streams) + sst_drv_ctx->scard_ops->power_up_pmic_cp(1); + } else if ((slot->target_type == SND_SST_TARGET_PMIC || + slot->target_type == SND_SST_TARGET_OTHER) && + slot->device_instance == 0) { + sst_drv_ctx->pmic_port_instance = 0; + sst_drv_ctx->scard_ops->set_audio_port(DEACTIVATE); + sst_drv_ctx->scard_ops->set_voice_port(ACTIVATE); + if (sst_drv_ctx->pb_streams ) + sst_drv_ctx->scard_ops->power_up_pmic_pb(0); + if (sst_drv_ctx->cp_streams) + sst_drv_ctx->scard_ops->power_up_pmic_cp(0); + } + return 0; +} + +int sst_send_target(struct snd_sst_target_device *target) +{ + int retval; + struct ipc_post *msg; + + if (sst_create_large_msg(&msg)) { + dev_err(&sst_drv_ctx->pci->dev, "SST ERR: message creation failed\n"); + return -ENOMEM; + } + sst_fill_header(&msg->header, IPC_IA_TARGET_DEV_SELECT, 1, 0); + sst_drv_ctx->tgt_dev_blk.condition = false; + sst_drv_ctx->tgt_dev_blk.ret_code = 0; + sst_drv_ctx->tgt_dev_blk.on = true; + + msg->header.part.data = sizeof(u32) + sizeof(*target); + memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); + memcpy(msg->mailbox_data + sizeof(u32), target, + sizeof(*target)); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + printk(KERN_DEBUG "SST DBG:message sent- waiting\n"); + retval = sst_wait_interruptible_timeout(sst_drv_ctx, + &sst_drv_ctx->tgt_dev_blk, TARGET_DEV_BLOCK_TIMEOUT); + if (retval) + dev_err(&sst_drv_ctx->pci->dev, "SST ERR: +\ + target device ipc failed = 0x%x\n", retval); + return retval; + +} +/** +* sst_target_device_select - This fuction sets the target device configurations +* @target_device: this parameter holds the configurations to be set +* +* This function is called when the user layer wants to change the target +* device's configurations +*/ + +int sst_target_device_select(struct snd_sst_target_device *target) +{ + int retval, i; + + printk(KERN_DEBUG "SST DBG:Target Device Select\n"); + + if (target->device_route < 0 || target->device_route > 2) { + dev_err(&sst_drv_ctx->pci->dev, "SST ERR: device route is invalid\n"); + return -EINVAL; + } + + if (target->device_route != 0) { + dev_err(&sst_drv_ctx->pci->dev, "SST ERR: Unsupported config\n"); + return -EIO; + } + for (i = 0; i < SST_MAX_TARGET_DEVICES; i++) { + if (target->devices[i].action == SND_SST_PORT_ACTIVATE) { + printk(KERN_DEBUG "SST DBG:activate called in %d\n", i); + retval = sst_parse_target(&target->devices[i]); + if (retval) + return retval; + } else if (target->devices[i].action == SND_SST_PORT_PREPARE) + printk(KERN_DEBUG "SST DBG:PREPARE in %d, FWding\n", i); + } + return sst_send_target(target); +} + +/** +* This function gets the physical address of the secure memory from the handle +*/ +static inline int sst_get_RAR(struct RAR_buffer *buffers, int count) +{ + int retval = 0, rar_status = 0; + + rar_status = rar_handle_to_bus(buffers, count); + + if (count != rar_status) { + printk(KERN_ERR "SST ERR: The rar CALL Failed"); + retval = -EIO; + } + if (buffers->info.type != RAR_TYPE_AUDIO) { + printk(KERN_ERR "SST ERR:Invalid RAR type\n"); + return -EINVAL; + } + return retval; +} + +/** +* This function creates the scatter gather list to be sent to firmware to +* capture/playback data +*/ +static int sst_create_sg_list(struct stream_info *stream, + struct sst_frame_info *sg_list) +{ + struct sst_stream_bufs *kbufs = NULL; + struct RAR_buffer rar_buffers; + int retval = 0; + int i = 0; + + list_for_each_entry(kbufs, &stream->bufs, node) { + if (kbufs->in_use == false) { + if (stream->ops == STREAM_OPS_PLAYBACK_DRM) { + printk(KERN_DEBUG "DRM playback handling \n"); + rar_buffers.info.handle = (__u32)kbufs->addr; + rar_buffers.info.size = kbufs->size; + printk(KERN_DEBUG "rar handle = 0x%x size=0x%x", rar_buffers.info.handle, rar_buffers.info.size); + retval = sst_get_RAR(&rar_buffers, 1); + + if (retval) + return retval; + sg_list->addr[i].addr = rar_buffers.bus_address; + sg_list->addr[i].size = (__u32)kbufs->size; /* rar_buffers.info.size; */ + printk(KERN_DEBUG "SST DBG:phy addr[%d] 0x%x +\ + Size 0x%x\n", i, sg_list->addr[i].addr,\ + sg_list->addr[i].size); + } else { + sg_list->addr[i].addr = + virt_to_phys((void *) + kbufs->addr + kbufs->offset); + sg_list->addr[i].size = kbufs->size; + printk(KERN_DEBUG "SST DBG:phy addr[%d] 0x%x +\ + Size 0x%x\n", i,\ + sg_list->addr[i].addr,\ + kbufs->size); + } + stream->curr_bytes += sg_list->addr[i].size; + kbufs->in_use = true; + i++; + } + if (i >= MAX_NUM_SCATTER_BUFFERS) + break; + } + + sg_list->num_entries = i; + printk(KERN_DEBUG "SST DBG:sg list entries +\ + = %d \n", sg_list->num_entries); + return i; +} + +/** +* sst_play_frame - Send msg for sending stream frames +* @str_id: ID of stream +* +* This function is called to send data to be played out +* to the firmware +*/ +int sst_play_frame(int str_id) +{ + int i = 0, retval = 0; + struct ipc_post *msg = NULL; + struct sst_frame_info sg_list = {0}; + struct sst_stream_bufs *kbufs = NULL, *_kbufs; + struct stream_info *stream; + + printk(KERN_DEBUG "SST DBG:play frame for %d\n", str_id); + retval = sst_validate_strid(str_id); + if (retval) + return retval; + + stream = &sst_drv_ctx->streams[str_id]; + /* clear prev sent buffers */ + list_for_each_entry_safe(kbufs, _kbufs, &stream->bufs, node) { + if (kbufs->in_use == true) { + if ((!stream->period_elapsed) && !(in_interrupt()) ){ + spin_lock(&stream->pcm_lock); + list_del(&kbufs->node); + kfree(kbufs); + printk(KERN_DEBUG "SST DBG:del node \n"); + spin_unlock(&stream->pcm_lock); + } + else { + list_del(&kbufs->node); + kfree(kbufs); + printk(KERN_DEBUG "SST DBG:del node \n"); + } + } + } + /* update bytes sent */ + stream->cumm_bytes += stream->curr_bytes; + stream->curr_bytes = 0; + if (list_empty(&stream->bufs)) { + /* no user buffer available */ + printk(KERN_DEBUG "SST DBG:Null buffer!!!!stream +\ + status = %d \n", stream->status); + stream->prev = stream->status; + stream->status = STREAM_INIT; + printk(KERN_DEBUG "SST DBG:new stream status +\ + = %d \n", stream->status); + if (stream->need_draining == true) { + printk(KERN_DEBUG "SST DBG:draining stream \n"); + if (sst_create_short_msg(&msg)) { + printk(KERN_ERR \ + "SST ERR: short message mem +\ + alloc failed\n"); + return -ENOMEM; + } + sst_fill_header(&msg->header, IPC_IA_DRAIN_STREAM, + 0, str_id); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, + &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + } else if (stream->data_blk.on == true) { + printk(KERN_DEBUG "SST DBG:user list is empty.. wake \n"); + /* unblock */ + stream->data_blk.ret_code = 0; + stream->data_blk.condition = true; + stream->data_blk.on = false; + wake_up(&sst_drv_ctx->wait_queue); + } +#ifdef CONFIG_MSTWN_POWER_MGMT + sst_ospm_send_event(OSPM_EVENT_AUDIO_BUF_EMPTY); +#endif + return 0; + } + + /* create list */ + i = sst_create_sg_list(stream, &sg_list); + + /* post msg */ + if (sst_create_large_msg(&msg)) + return -ENOMEM; + + sst_fill_header(&msg->header, IPC_IA_PLAY_FRAMES, 1, str_id); + msg->header.part.data = sizeof(u32) + sizeof(sg_list); + memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); + memcpy(msg->mailbox_data + sizeof(u32), &sg_list, sizeof(sg_list)); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + return 0; + +} + +/** +* sst_capture_frame - Send msg for sending stream frames +* @str_id: ID of stream +* +* This function is called to capture data from the firmware +*/ +int sst_capture_frame(int str_id) +{ + int i = 0, retval = 0; + struct ipc_post *msg = NULL; + struct sst_frame_info sg_list = {0}; + struct sst_stream_bufs *kbufs = NULL, *_kbufs; + struct stream_info *stream; + + + printk(KERN_DEBUG "SST DBG:capture frame for %d\n", str_id); + retval = sst_validate_strid(str_id); + if (retval) + return retval; + stream = &sst_drv_ctx->streams[str_id]; + /*update bytes sent*/ + /*stream->cumm_bytes += stream->curr_bytes; + stream->curr_bytes = 0;*/ + /* clear prev sent buffers */ + list_for_each_entry_safe(kbufs, _kbufs, &stream->bufs, node) { + if (kbufs->in_use == true) { + list_del(&kbufs->node); + kfree(kbufs); + printk(KERN_DEBUG "SST DBG:del node \n"); + } + } + if (list_empty(&stream->bufs)) { + /* no user buffer available */ + printk(KERN_DEBUG "SST DBG:Null buffer!!!!stream +\ + status = %d \n", stream->status); + stream->prev = stream->status; + stream->status = STREAM_INIT; + printk(KERN_DEBUG "SST DBG:new stream +\ + status = %d \n", stream->status); + if (stream->data_blk.on == true) { + printk(KERN_DEBUG "SST DBG:user list is empty.. wake \n"); + /* unblock */ + stream->data_blk.ret_code = 0; + stream->data_blk.condition = true; + stream->data_blk.on = false; + wake_up(&sst_drv_ctx->wait_queue); + + } +#ifdef CONFIG_MSTWN_POWER_MGMT + sst_ospm_send_event(OSPM_EVENT_AUDIO_BUF_FULL); +#endif + return 0; + } + + /* create new sg list */ + i = sst_create_sg_list(stream, &sg_list); + + /* post msg */ + if (sst_create_large_msg(&msg)) + return -ENOMEM; + + sst_fill_header(&msg->header, IPC_IA_CAPT_FRAMES, 1, str_id); + msg->header.part.data = sizeof(u32) + sizeof(sg_list); + memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); + memcpy(msg->mailbox_data + sizeof(u32), &sg_list, sizeof(sg_list)); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + + + /*update bytes recevied*/ + stream->cumm_bytes += stream->curr_bytes; + stream->curr_bytes = 0; + + printk(KERN_DEBUG "SST DBG:Cum bytes = %d \n", stream->cumm_bytes); + return 0; +} + +/** +* This function is used to calculate the minimum size of input buffers given +*/ +static unsigned int calculate_min_size(struct snd_sst_buffs *bufs) +{ + int i, min_val = bufs->buff_entry[0].size; + for (i = 1 ; i < bufs->entries; i++) { + if (bufs->buff_entry[i].size < min_val) + min_val = bufs->buff_entry[i].size; + } + printk(KERN_DEBUG "SST DBG:min_val = %d\n", min_val); + return min_val; +} + +/** +* This function is used to calculate the maximum size of input buffers given +*/ +static unsigned int calculate_max_size(struct snd_sst_buffs *bufs) +{ + int i, max_val = bufs->buff_entry[0].size; + for (i = 1 ; i < bufs->entries; i++) { + if (bufs->buff_entry[i].size > max_val) + max_val = bufs->buff_entry[i].size; + } + printk(KERN_DEBUG "SST DBG:max_val = %d\n", max_val); + return max_val; +} + +/** +* This function is used to allocate input and output buffers to be sent to +* the firmware that will take encoded data and return decoded data +*/ +static int sst_allocate_decode_buf(struct stream_info *str_info, + struct snd_sst_dbufs *dbufs, + unsigned int cum_input_given, + unsigned int cum_output_given) +{ + if (str_info->ops == STREAM_OPS_PLAYBACK_DRM) { + + if (dbufs->ibufs->type == SST_BUF_RAR && dbufs->obufs->type == SST_BUF_RAR ) { + if (dbufs->ibufs->entries == dbufs->obufs->entries) + return 0; + else { + printk(KERN_ERR "SST ERR: +\ + RAR buffer entries do not match \n"); + return -EINVAL; + } + } + else + str_info->decode_osize = cum_output_given; + return 0; + + } + if (!str_info->decode_ibuf) { + printk(KERN_DEBUG "SST DBG:no input buffers, trying full size\n"); + str_info->decode_isize = cum_input_given; + str_info->decode_ibuf = kzalloc(str_info->decode_isize, + GFP_KERNEL); + str_info->idecode_alloc = str_info->decode_isize; + } + if (!str_info->decode_ibuf) { + printk(KERN_DEBUG "SST DBG:buff alloaction failed, trying max size\n"); + str_info->decode_isize = calculate_max_size(dbufs->ibufs); + str_info->decode_ibuf = kzalloc(str_info->decode_isize, + GFP_KERNEL); + str_info->idecode_alloc = str_info->decode_isize; + } + if (!str_info->decode_ibuf) { + printk(KERN_DEBUG "SST DBG:buff alloaction failed, trying min size\n"); + str_info->decode_isize = calculate_min_size(dbufs->ibufs); + str_info->decode_ibuf = kzalloc(str_info->decode_isize, + GFP_KERNEL); + if (!str_info->decode_ibuf) { + printk(KERN_ERR \ + "SST ERR: mem allocation failed\n"); + return -ENOMEM; + } + str_info->idecode_alloc = str_info->decode_isize; + } + str_info->decode_osize = cum_output_given; + if (str_info->decode_osize > sst_drv_ctx->mmap_len) + str_info->decode_osize = sst_drv_ctx->mmap_len; + return 0; +} + +/** +* This function is used to send the message to firmware to decode the data +*/ +static int sst_send_decode_mess(int str_id, struct stream_info *str_info, + struct snd_sst_decode_info *dec_info) +{ + struct ipc_post *msg = NULL; + int retval = 0; + + printk(KERN_DEBUG "SST DBG:called \n"); + + if ( str_info->decode_ibuf_type == SST_BUF_RAR ) { + dec_info->frames_in.addr[0].addr = (unsigned long) str_info->decode_ibuf; + dec_info->frames_in.addr[0].size = str_info->decode_isize; + + } else { + dec_info->frames_in.addr[0].addr = virt_to_phys((void *) + str_info->decode_ibuf); + dec_info->frames_in.addr[0].size = str_info->decode_isize; + } + + + if ( str_info->decode_obuf_type == SST_BUF_RAR ) { + dec_info->frames_out.addr[0].addr = (unsigned long) str_info->decode_obuf; + dec_info->frames_out.addr[0].size = str_info->decode_osize; + + } else { + dec_info->frames_out.addr[0].addr = virt_to_phys((void *) + str_info->decode_obuf ) ; + dec_info->frames_out.addr[0].size = str_info->decode_osize; + } + + dec_info->frames_in.num_entries = 1; + dec_info->frames_out.num_entries = 1; + dec_info->frames_in.rsrvd = 0; + dec_info->frames_out.rsrvd = 0; + dec_info->input_bytes_consumed = 0; + dec_info->output_bytes_produced = 0; + if (sst_create_large_msg(&msg)) { + printk(KERN_ERR "SST ERR: message +\ + creation failed\n"); + return -ENOMEM; + } + + sst_fill_header(&msg->header, IPC_IA_DECODE_FRAMES, 1, str_id); + msg->header.part.data = sizeof(u32) + sizeof(*dec_info); + memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); + memcpy(msg->mailbox_data + sizeof(u32), dec_info, + sizeof(*dec_info)); + mutex_lock(&sst_drv_ctx->list_lock); + list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); + mutex_unlock(&sst_drv_ctx->list_lock); + str_info->data_blk.condition = false; + str_info->data_blk.ret_code = 0; + str_info->data_blk.on = true; + str_info->data_blk.data = dec_info; + sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); + retval = sst_wait_interruptible(sst_drv_ctx, &str_info->data_blk); + return retval; +} + +/** +* This function is used to prepare the kernel input buffers with contents before +* sendind for decode +*/ +static int sst_prepare_input_buffers(struct stream_info *str_info, + struct snd_sst_dbufs *dbufs, + int *input_index, int *in_copied, int *input_index_valid_size, int *new_entry_flag) +{ + int i, cpy_size, retval = 0; + + printk(KERN_DEBUG "SST DBG:input_index = %d, +\ + input entries = %d\n", *input_index, + dbufs->ibufs->entries); + for (i = *input_index; i < dbufs->ibufs->entries; i++) { + if (str_info->ops == STREAM_OPS_PLAYBACK_DRM) { + struct RAR_buffer rar_buffers; + __u32 info; + retval = copy_from_user((void *) &info, + dbufs->ibufs->buff_entry[i].buffer, + sizeof(__u32)); + if (retval) { + printk(KERN_ERR "SST ERR:copy from user failed\n"); + return -EAGAIN; + } + rar_buffers.info.type = dbufs->ibufs->type; + rar_buffers.info.size = dbufs->ibufs->buff_entry[i].size; + rar_buffers.info.handle = info; + printk(KERN_DEBUG "rar handle in DnR(input buffer function)=0x%x size=0x%x" \ + , rar_buffers.info.handle, rar_buffers.info.size); + retval = sst_get_RAR(&rar_buffers, 1); + if (retval) { + printk(KERN_ERR "SST ERR: RAR API failed\n"); + return retval; + } + str_info->decode_ibuf = (void *) ((unsigned long) rar_buffers.bus_address); + printk(KERN_DEBUG "RAR buffer address in DnR (input buffer function):: +\ + 0x%lu", (unsigned long) str_info->decode_ibuf); + printk(KERN_DEBUG "rar handle in DnR decode funtion/output b_add rar +\ + = 0x%lu", (unsigned long) rar_buffers.bus_address); + + *input_index = i + 1; + + str_info->decode_isize = dbufs->ibufs->buff_entry[i].size; + str_info->decode_ibuf_type = dbufs->ibufs->type; + *in_copied = str_info->decode_isize; + printk(KERN_DEBUG "rar address in input prepare= 0x%lu size=0x%x +\ + incopied Size =%d ", (unsigned long) str_info->decode_ibuf, +\ + str_info->decode_isize ,*in_copied); + break; + } + *input_index = i; + if (*input_index_valid_size == 0) + *input_index_valid_size = dbufs->ibufs->buff_entry[i].size; + printk(KERN_DEBUG "SST DBG:inout addr = %p, size = %d\n", + dbufs->ibufs->buff_entry[i].buffer, + *input_index_valid_size); + printk(KERN_DEBUG "SST DBG:decode_isize = %d, in_copied = %d\n", + str_info->decode_isize, *in_copied); + if (*input_index_valid_size <= + (str_info->decode_isize - *in_copied)) + cpy_size = *input_index_valid_size; + else + cpy_size = str_info->decode_isize - *in_copied; + + printk(KERN_DEBUG "SST DBG:cpy size = %d\n", cpy_size); + if (!dbufs->ibufs->buff_entry[i].buffer) { + printk(KERN_ERR "SST ERR: +\ + input buffer is null\n"); + return -EINVAL; + } + printk(KERN_DEBUG "SST DBG:Trying copy To: %p, From %p, size %d\n", + str_info->decode_ibuf + *in_copied, + dbufs->ibufs->buff_entry[i].buffer, cpy_size); + + retval = + copy_from_user((void *)(str_info->decode_ibuf + *in_copied), + (void *) dbufs->ibufs->buff_entry[i].buffer, + cpy_size); + if (retval) { + printk(KERN_ERR\ + "SST ERR: copy from user failed \n"); + return -EIO; + } + *in_copied += cpy_size; + *input_index_valid_size -= cpy_size; + printk(KERN_DEBUG "SST DBG:in buff size = %d, in_copied = %d\n", + *input_index_valid_size, *in_copied); + if (*input_index_valid_size != 0) { + printk(KERN_DEBUG "SST DBG:more input buffers left \n"); + dbufs->ibufs->buff_entry[i].buffer += + cpy_size; + break; + } + if (*in_copied == str_info->decode_isize && + *input_index_valid_size == 0 && (i+1) <= dbufs->ibufs->entries) { + printk(KERN_DEBUG "SST DBG:all input buffers copied\n"); + *new_entry_flag = true; + *input_index = i + 1; + break; + } + } + return retval; +} + +/** +* This function is used to copy the decoded data from kernel buffers to +* the user output buffers with contents after decode +*/ +static int sst_prepare_output_buffers(struct stream_info *str_info, + struct snd_sst_dbufs *dbufs, + int *output_index, int output_size, + int *out_copied) + +{ + int i, cpy_size, retval = 0; + printk(KERN_DEBUG "SST DBG:output_index = %d, output entries = %d\n", + *output_index, + dbufs->obufs->entries); + for (i = *output_index; i < dbufs->obufs->entries; i++) { + *output_index = i; + printk(KERN_DEBUG "SST DBG:output addr = %p, size = %d\n", + dbufs->obufs->buff_entry[i].buffer, + dbufs->obufs->buff_entry[i].size); + printk(KERN_DEBUG "SST DBG:output_size = %d, out_copied = %d\n", + output_size, *out_copied); + if (dbufs->obufs->buff_entry[i].size < + (output_size - *out_copied)) + cpy_size = dbufs->obufs->buff_entry[i].size; + else + cpy_size = output_size - *out_copied; + printk(KERN_DEBUG "SST DBG:cpy size = %d\n", cpy_size); + printk(KERN_DEBUG "SST DBG:Trying copy To: %p, From %p, size %d\n", + dbufs->obufs->buff_entry[i].buffer, + sst_drv_ctx->mmap_mem + *out_copied, + cpy_size); + retval = copy_to_user(dbufs->obufs->buff_entry[i].buffer, + sst_drv_ctx->mmap_mem + *out_copied, + cpy_size); + if (retval) { + printk(KERN_ERR "SST ERR: +\ + copy to user failed \n"); + return -EIO; + } else + printk(KERN_DEBUG "SST DBG:copy to user passed \n"); + *out_copied += cpy_size; + dbufs->obufs->buff_entry[i].size -= cpy_size; + printk(KERN_DEBUG "SST DBG:output buff size = %d, out_copied = %d\n", + dbufs->obufs->buff_entry[i].size, *out_copied); + if (dbufs->obufs->buff_entry[i].size != 0) { + *output_index = i; + dbufs->obufs->buff_entry[i].buffer += cpy_size; + break; + } else if (*out_copied == output_size) { + *output_index = i + 1; + break; + } + } + return retval; +} + +/** +* sst_decode - Send msg for decoding frames +* @str_id: ID of stream +* @dbufs - param that holds the user input and output buffers and sizes +* This function is called to decode data from the firmware +*/ +int sst_decode(int str_id, struct snd_sst_dbufs *dbufs) +{ + int retval = 0, i; + unsigned long long total_input = 0 , total_output = 0; + unsigned int cum_input_given = 0 , cum_output_given = 0; + int copy_in_done = false, copy_out_done = false; + int input_index = 0, output_index = 0; + int input_index_valid_size = 0; + int in_copied, out_copied; + int new_entry_flag; + u64 output_size; + struct stream_info *str_info; + struct snd_sst_decode_info dec_info; + + printk(KERN_DEBUG "SST DBG:...called \n"); + sst_drv_ctx->scard_ops->power_down_pmic(); + printk(KERN_DEBUG "SST DBG: Powering_down_PMIC.... \n"); + retval = sst_validate_strid(str_id); + if (retval) + return retval; + + str_info = &sst_drv_ctx->streams[str_id]; + if (str_info->status != STREAM_INIT) { + printk(KERN_ERR "SST ERR: invalid +\ + stream state = %d\n", str_info->status); + return -EINVAL; + } + + str_info->prev = str_info->status; + str_info->status = STREAM_DECODE; + for (i = 0; i < dbufs->ibufs->entries; i++) + cum_input_given += dbufs->ibufs->buff_entry[i].size; + for (i = 0; i < dbufs->obufs->entries; i++) + cum_output_given += dbufs->obufs->buff_entry[i].size; + /* input and output buffer allocation */ + retval = sst_allocate_decode_buf(str_info, dbufs, + cum_input_given, cum_output_given); + str_info->decode_isize = str_info->idecode_alloc; + if (retval) { + printk(KERN_ERR "SST ERR: +\ + mem allocation failed, abort!!!\n"); + retval = -ENOMEM; + goto finish; + } + + str_info->decode_ibuf_type = dbufs->ibufs->type; + str_info->decode_obuf_type = dbufs->obufs->type; + + while ((copy_out_done == false) && (copy_in_done == false)) { + in_copied = 0; + new_entry_flag = false; + retval = sst_prepare_input_buffers(str_info,\ + dbufs, &input_index, &in_copied, &input_index_valid_size, &new_entry_flag); + printk(KERN_DEBUG "SST DBG:prep inbuf ret %d\n", retval); + if (retval) { + printk(KERN_ERR \ + "SST ERR: prepare in buffers failed\n"); + goto finish; + } + + printk(KERN_DEBUG "rar handle output buffer type = 0x%x ", dbufs->obufs->type); + if (str_info->ops != STREAM_OPS_PLAYBACK_DRM) + str_info->decode_obuf = sst_drv_ctx->mmap_mem; + else { + + if( dbufs->obufs->type == SST_BUF_RAR ) { + struct RAR_buffer rar_buffers; + __u32 info; + retval = copy_from_user((void *) &info, + dbufs->obufs->buff_entry[output_index].buffer, + sizeof(__u32)); + + rar_buffers.info.size = dbufs->obufs->buff_entry[output_index].size; + rar_buffers.info.handle = info; + printk(KERN_DEBUG "rar handle in DnR(decode funtion)= 0x%x size=0x%x",\ + rar_buffers.info.handle, rar_buffers.info.size); + retval = sst_get_RAR(&rar_buffers, 1); + if (retval) + return retval; + + + str_info->decode_obuf = (void *) ((unsigned long)rar_buffers.bus_address); + str_info->decode_osize = dbufs->obufs->buff_entry[output_index].size; + str_info->decode_obuf_type = dbufs->obufs->type; + printk(KERN_DEBUG "SST DBG:DRM handling\n"); + printk(KERN_DEBUG "rar handle in DnR decode funtion/output b_add = 0x%lu +\ + output Size=0x%x", (unsigned long) str_info->decode_obuf ,\ + str_info->decode_osize); + } + else + { + str_info->decode_obuf = sst_drv_ctx->mmap_mem; + str_info->decode_osize = dbufs->obufs->buff_entry[output_index].size; + + } + } + + if (str_info->ops != STREAM_OPS_PLAYBACK_DRM) { + if (str_info->decode_isize > in_copied) { + str_info->decode_isize = in_copied; + printk(KERN_DEBUG "SST DBG:input size modified = %d\n", + str_info->decode_isize); + } + } + + + retval = sst_send_decode_mess(str_id, str_info, &dec_info); + if (retval) { + printk(KERN_ERR \ + "SST ERR: sending message failed\n"); + goto finish; + } + printk(KERN_DEBUG "SST DBG:in_copied = %d, consumed = %lld, produced = %lld\n", + in_copied, + dec_info.input_bytes_consumed, + dec_info.output_bytes_produced); + if (dbufs->obufs->type == SST_BUF_RAR) { + output_index += 1; + if (output_index == dbufs->obufs->entries) { + copy_in_done = true; + printk(KERN_DEBUG "SST DBG:all input copy done\n"); + } + total_output += dec_info.output_bytes_produced; + } else { + out_copied = 0; + output_size = dec_info.output_bytes_produced; + retval = sst_prepare_output_buffers(str_info, dbufs, + &output_index, output_size, &out_copied); + if (retval) { + printk(KERN_ERR \ + "SST ERR: prepare out +\ + buffers failed\n"); + goto finish; + } + if (str_info->ops != STREAM_OPS_PLAYBACK_DRM) { + if (in_copied != dec_info.input_bytes_consumed) { + int bytes_left = in_copied - dec_info.input_bytes_consumed; + printk(KERN_DEBUG "SST DBG:input left to be copied = %d \n", + bytes_left); + if(new_entry_flag == true) { + input_index--; + } + while (bytes_left) { + unsigned int size_sent = dbufs->ibufs->buff_entry[input_index].size - input_index_valid_size; + if (bytes_left == size_sent) { + bytes_left = 0; + } else if (bytes_left < size_sent) { + dbufs->ibufs->buff_entry[input_index].buffer += (size_sent - bytes_left); + dbufs->ibufs->buff_entry[input_index].size -= (size_sent - bytes_left); + bytes_left = 0; + } else { + bytes_left -= size_sent; + input_index--; + input_index_valid_size = 0; + } + } + + } + } + + total_output += out_copied; + if (str_info->decode_osize != out_copied) { + str_info->decode_osize -= out_copied; + printk(KERN_DEBUG "SST DBG:output size modified = %d\n", + str_info->decode_osize); + } + } + total_input += dec_info.input_bytes_consumed; + + if (str_info->ops == STREAM_OPS_PLAYBACK_DRM) { + if (total_input == cum_input_given) + copy_in_done = true; + copy_out_done = true; + + } else { + if (total_output == cum_output_given) { + copy_out_done = true; + printk(KERN_DEBUG "SST DBG:all output copy done\n"); + } + + if (total_input == cum_input_given) { + copy_in_done = true; + printk(KERN_DEBUG "SST DBG:all input copy done\n"); + } + } + + printk(KERN_DEBUG "SST DBG:copy_out_done = %d, copy_in_done = %d \n", + copy_out_done, copy_in_done); + } + +finish: + dbufs->input_bytes_consumed = total_input; + dbufs->output_bytes_produced = total_output; + str_info->status = str_info->prev; + str_info->prev = STREAM_DECODE; + str_info->decode_ibuf = NULL; + kfree(str_info->decode_ibuf); + + return retval; +} -- 1.6.2.2