/**
* 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;
unsigned long irq_flags;
pr_debug("sst_get_fw_info called\n");
if (sst_create_short_msg(&msg)) {
pr_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;
spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
sst_drv_ctx->ops->post_message(&sst_drv_ctx->ipc_post_msg_wq);
retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->fw_info_blk);
if (retval) {
pr_err("error in fw_info = %d\n", retval);
retval = -EIO;
}
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;
struct intel_sst_ops *ops;
unsigned long irq_flags;
pr_debug("SST DBG:sst_resume_stream for %d\n", str_id);
str_info = get_stream_info(str_id);
if (!str_info)
return -EINVAL;
ops = sst_drv_ctx->ops;
if (str_info->status == STREAM_RUNNING)
return 0;
if (str_info->status == STREAM_PAUSED) {
if (str_info->ctrl_blk.on == true) {
pr_err("SST ERR: control path in use\n");
return -EINVAL;
}
if (sst_create_short_msg(&msg)) {
pr_err("SST ERR: 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;
spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
list_add_tail(&msg->node,
&sst_drv_ctx->ipc_dispatch_list);
spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
ops->post_message(&sst_drv_ctx->ipc_post_msg_wq);
retval = sst_wait_timeout(sst_drv_ctx, &str_info->ctrl_blk);
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->stream_lock);
sst_clean_stream(str_info);
mutex_unlock(&sst_drv_ctx->stream_lock);
}
} else {
retval = -EBADRQC;
pr_err("SST ERR: BADQRC for stream\n");
}
return retval;
}
/*
* sst_send_sound_card_type - send sound card type
*
* this function sends the sound card type to sst dsp engine
*/
static void sst_send_sound_card_type(void)
{
struct ipc_post *msg = NULL;
if (sst_create_short_msg(&msg))
return;
sst_fill_header(&msg->header, IPC_IA_SET_PMIC_TYPE, 0, 0);
msg->header.part.data = sst_drv_ctx->pmic_vendor;
spin_lock(&sst_drv_ctx->list_spin_lock);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock(&sst_drv_ctx->list_spin_lock);
sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
return;
}
/**
* 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;
struct intel_sst_ops *ops;
unsigned long irq_flags;
pr_debug("SST DBG:sst_drain_stream for %d\n", str_id);
str_info = get_stream_info(str_id);
if (!str_info)
return -EINVAL;
ops = sst_drv_ctx->ops;
if (str_info->status != STREAM_RUNNING &&
str_info->status != STREAM_INIT &&
str_info->status != STREAM_PAUSED) {
pr_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)) {
pr_err("SST ERR: mem allocation failed\n");
return -ENOMEM;
}
sst_fill_header(&msg->header, IPC_IA_DRAIN_STREAM, 0, str_id);
spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
ops->post_message(&sst_drv_ctx->ipc_post_msg_wq);
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);
}
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;
struct intel_sst_ops *ops;
unsigned long irq_flags;
pr_debug("SST DBG:sst_free_stream for %d\n", str_id);
mutex_lock(&sst_drv_ctx->sst_lock);
if (sst_drv_ctx->sst_state == SST_UN_INIT) {
mutex_unlock(&sst_drv_ctx->sst_lock);
return -ENODEV;
}
mutex_unlock(&sst_drv_ctx->sst_lock);
str_info = get_stream_info(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);
if (str_info->ctrl_blk.on == true) {
pr_err("SST ERR: control path in use\n");
return -EINVAL;
}
if (sst_create_short_msg(&msg)) {
pr_err("SST ERR: mem allocation failed\n");
return -ENOMEM;
}
if (sst_drv_ctx->pci_id == SST_MRFLD_PCI_ID)
sst_fill_header_mrfld(&msg->mrfld_header,
IPC_IA_FREE_STREAM, 0, str_id);
else
sst_fill_header(&msg->header, IPC_IA_FREE_STREAM,
0, str_id);
spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
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);
}
str_info->ctrl_blk.on = true;
str_info->ctrl_blk.condition = false;
ops->post_message(&sst_drv_ctx->ipc_post_msg_wq);
retval = sst_wait_timeout(sst_drv_ctx, &str_info->ctrl_blk);
pr_debug("sst: wait for free returned %d\n", retval);
mutex_lock(&sst_drv_ctx->stream_lock);
sst_clean_stream(str_info);
mutex_unlock(&sst_drv_ctx->stream_lock);
pr_debug("SST DBG:Stream freed\n");
} else {
mutex_unlock(&str_info->lock);
retval = -EBADRQC;
pr_debug("SST DBG:BADQRC for stream\n");
}
return retval;
}