void sst_restore_fw_context(void)
{
struct snd_sst_ctxt_params fw_context;
struct ipc_post *msg = NULL;
pr_debug("restore_fw_context\n");
/*check cpu type*/
if (sst_drv_ctx->pci_id != SST_MFLD_PCI_ID)
return;
/*not supported for rest*/
if (!sst_drv_ctx->fw_cntx_size)
return;
/*nothing to restore*/
pr_debug("restoring context......\n");
/*send msg to fw*/
if (sst_create_large_msg(&msg))
return;
sst_fill_header(&msg->header, IPC_IA_SET_FW_CTXT, 1, 0);
msg->header.part.data = sizeof(fw_context) + sizeof(u32);
fw_context.address = virt_to_phys((void *)sst_drv_ctx->fw_cntx);
fw_context.size = sst_drv_ctx->fw_cntx_size;
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32),
&fw_context, sizeof(fw_context));
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;
}
static void sst_save_dsp_context(void)
{
struct snd_sst_ctxt_params fw_context;
unsigned int pvt_id;
struct ipc_post *msg = NULL;
unsigned long irq_flags;
/*check cpu type*/
if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
return;
/*not supported for rest*/
if (sst_drv_ctx->sst_state != SST_FW_RUNNING) {
pr_debug("fw not running no context save ...\n");
return;
}
/*send msg to fw*/
if (sst_create_large_msg(&msg))
return;
pvt_id = sst_assign_pvt_id(sst_drv_ctx);
sst_drv_ctx->alloc_block[0].sst_id = pvt_id;
sst_drv_ctx->alloc_block[0].ops_block.condition = false;
sst_drv_ctx->alloc_block[0].ops_block.on = true;
sst_fill_header(&msg->header, IPC_IA_GET_FW_CTXT, 1, pvt_id);
msg->header.part.data = sizeof(fw_context) + sizeof(u32);
fw_context.address = virt_to_phys((void *)sst_drv_ctx->fw_cntx);
fw_context.size = FW_CONTEXT_MEM;
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32),
&fw_context, sizeof(fw_context));
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_post_message(&sst_drv_ctx->ipc_post_msg_wq);
/*wait for reply*/
if (sst_wait_timeout(sst_drv_ctx,
&sst_drv_ctx->alloc_block[0].ops_block))
pr_err("sst: err fw context save timeout ...\n");
sst_drv_ctx->alloc_block[0].sst_id = BLOCK_UNINIT;
pr_debug("fw context saved ...\n");
return;
}
/**
* sst_stream_stream - Send msg for a pausing stream
* @str_id: stream ID
*
* This function is called by any function which wants to start
* a stream.
*/
int sst_start_stream(int str_id)
{
int retval = 0;
struct ipc_post *msg = NULL;
struct stream_info *str_info;
pr_debug("sst_start_stream for %d\n", str_id);
str_info = get_stream_info(str_id);
if (!str_info)
return -EINVAL;
if (str_info->status != STREAM_RUNNING)
return -EBADRQC;
if (sst_create_large_msg(&msg))
return -ENOMEM;
if (sst_drv_ctx->pci_id == SST_MRFLD_PCI_ID) {
sst_fill_header_mrfld(&msg->mrfld_header,
IPC_IA_START_STREAM, 1, str_id);
msg->mrfld_header.p.header_low_payload =
sizeof(u64) + sizeof(u64);
memcpy(msg->mailbox_data,
&msg->mrfld_header.p.header_high.full, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32),
&msg->mrfld_header.p.header_low_payload, sizeof(u32));
memset(msg->mailbox_data + sizeof(u64), 0, sizeof(u32));
} else {
sst_fill_header(&msg->header, IPC_IA_START_STREAM, 1, str_id);
msg->header.part.data = sizeof(u32) + sizeof(u32);
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memset(msg->mailbox_data + sizeof(u32), 0, sizeof(u32));
}
sst_drv_ctx->ops->sync_post_message(msg);
return retval;
}
/*This function is called when any codec/post processing library
needs to be downloaded*/
static int sst_download_library(const struct firmware *fw_lib,
struct snd_sst_lib_download_info *lib)
{
/* send IPC message and wait */
int i;
u8 pvt_id;
struct ipc_post *msg = NULL;
union config_status_reg csr;
struct snd_sst_str_type str_type = {0};
int retval = 0;
if (sst_create_large_msg(&msg))
return -ENOMEM;
pvt_id = sst_assign_pvt_id(sst_drv_ctx);
i = sst_get_block_stream(sst_drv_ctx);
pr_debug("alloc block allocated = %d, pvt_id %d\n", i, pvt_id);
if (i < 0) {
kfree(msg);
return -ENOMEM;
}
sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
sst_fill_header(&msg->header, IPC_IA_PREP_LIB_DNLD, 1, pvt_id);
msg->header.part.data = sizeof(u32) + sizeof(str_type);
str_type.codec_type = lib->dload_lib.lib_info.lib_type;
/*str_type.pvt_id = pvt_id;*/
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32), &str_type, sizeof(str_type));
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);
retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]);
if (retval) {
/* error */
sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
pr_err("Prep codec downloaded failed %d\n",
retval);
return -EIO;
}
pr_debug("FW responded, ready for download now...\n");
/* downloading on success */
mutex_lock(&sst_drv_ctx->sst_lock);
sst_drv_ctx->sst_state = SST_FW_LOADED;
mutex_unlock(&sst_drv_ctx->sst_lock);
csr.full = readl(sst_drv_ctx->shim + SST_CSR);
csr.part.run_stall = 1;
sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
csr.part.bypass = 0x7;
sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
sst_parse_fw_image(fw_lib);
/* set the FW to running again */
csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
csr.part.bypass = 0x0;
sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
csr.part.run_stall = 0;
sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
/* send download complete and wait */
if (sst_create_large_msg(&msg)) {
sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
return -ENOMEM;
}
sst_fill_header(&msg->header, IPC_IA_LIB_DNLD_CMPLT, 1, pvt_id);
sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
msg->header.part.data = sizeof(u32) + sizeof(*lib);
lib->pvt_id = pvt_id;
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32), lib, sizeof(*lib));
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);
pr_debug("Waiting for FW response Download complete\n");
sst_drv_ctx->alloc_block[i].ops_block.condition = false;
retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]);
if (retval) {
/* error */
mutex_lock(&sst_drv_ctx->sst_lock);
sst_drv_ctx->sst_state = SST_UN_INIT;
mutex_unlock(&sst_drv_ctx->sst_lock);
sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
return -EIO;
}
pr_debug("FW success on Download complete\n");
sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
mutex_lock(&sst_drv_ctx->sst_lock);
sst_drv_ctx->sst_state = SST_FW_RUNNING;
mutex_unlock(&sst_drv_ctx->sst_lock);
return 0;
}
int sst_alloc_stream_mfld(char *params)
{
struct ipc_post *msg = NULL;
struct snd_sst_alloc_params_mfld alloc_param;
struct snd_sst_params *str_params;
struct stream_info *str_info;
unsigned int stream_ops, device;
struct snd_sst_stream_params_mfld *sparams;
unsigned int pcm_slot = 0, num_ch, pcm_wd_sz, sfreq;
int str_id;
u8 codec;
u32 rb_size, rb_addr, period_count;
unsigned long irq_flags;
pr_debug("In %s\n", __func__);
BUG_ON(!params);
str_params = (struct snd_sst_params *)params;
stream_ops = str_params->ops;
codec = str_params->codec;
device = str_params->device_type;
num_ch = sst_get_num_channel(str_params);
sfreq = sst_get_sfreq(str_params);
pcm_wd_sz = sst_get_wdsize(str_params);
rb_size = str_params->aparams.ring_buf_info[0].size;
rb_addr = str_params->aparams.ring_buf_info[0].addr;
period_count = str_params->aparams.frag_size / 4;
pr_debug("period_size = %d\n", period_count);
pr_debug("ring_buf_addr = 0x%x\n", rb_addr);
pr_debug("ring_buf_size = %d\n", rb_size);
pr_debug("device_type=%d\n", device);
pr_debug("sfreq =%d\n", sfreq);
pr_debug("stream_ops%d codec%d device%d\n", stream_ops, codec, device);
sparams = kzalloc(sizeof(*sparams), GFP_KERNEL);
if (!sparams) {
pr_err("Unable to allocate snd_sst_stream_params\n");
return -ENOMEM;
}
sparams->uc.pcm_params.codec = codec;
sparams->uc.pcm_params.num_chan = num_ch;
sparams->uc.pcm_params.pcm_wd_sz = pcm_wd_sz;
sparams->uc.pcm_params.reserved = 0;
sparams->uc.pcm_params.sfreq = sfreq;
sparams->uc.pcm_params.ring_buffer_size = rb_size;
sparams->uc.pcm_params.period_count = period_count;
sparams->uc.pcm_params.ring_buffer_addr = rb_addr;
if (sst_check_device_type(device, num_ch, &pcm_slot)) {
kfree(sparams);
return -EINVAL;
}
mutex_lock(&sst_drv_ctx->stream_lock);
str_id = device;
mutex_unlock(&sst_drv_ctx->stream_lock);
pr_debug("slot %x\n", pcm_slot);
/*allocate device type context*/
sst_init_stream(&sst_drv_ctx->streams[str_id], codec,
str_id, stream_ops, pcm_slot);
/* send msg to FW to allocate a stream */
if (sst_create_large_msg(&msg)) {
kfree(sparams);
return -ENOMEM;
}
alloc_param.str_type.codec_type = codec;
alloc_param.str_type.str_type = SST_STREAM_TYPE_MUSIC;
alloc_param.str_type.operation = stream_ops;
alloc_param.str_type.protected_str = 0; /* non drm */
alloc_param.str_type.time_slots = pcm_slot;
alloc_param.str_type.reserved = 0;
alloc_param.str_type.result = 0;
sst_fill_header(&msg->header, IPC_IA_ALLOC_STREAM, 1, str_id);
msg->header.part.data = sizeof(alloc_param) + sizeof(u32);
memcpy(&alloc_param.stream_params, sparams,
sizeof(*sparams));
kfree(sparams);
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32), &alloc_param,
sizeof(alloc_param));
str_info = &sst_drv_ctx->streams[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);
sst_drv_ctx->ops->post_message(&sst_drv_ctx->ipc_post_msg_wq);
pr_debug("SST DBG:alloc stream done\n");
return str_id;
}
/**
* sst_alloc_stream - Send msg for a new stream ID
*
* @params: stream params
* @stream_ops: operation of stream PB/capture
* @codec: codec for stream
* @device: device stream to be allocated for
*
* 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_clv(char *params)
{
struct ipc_post *msg = NULL;
struct snd_sst_alloc_params alloc_param;
unsigned int pcm_slot = 0x03, num_ch;
int str_id;
struct snd_sst_params *str_params;
struct snd_sst_stream_params *sparams;
struct snd_sst_alloc_params_ext *aparams;
struct stream_info *str_info;
unsigned int stream_ops, device;
unsigned long irq_flags;
u8 codec;
pr_debug("In %s\n", __func__);
BUG_ON(!params);
str_params = (struct snd_sst_params *)params;
stream_ops = str_params->ops;
codec = str_params->codec;
device = str_params->device_type;
sparams = &str_params->sparams;
aparams = &str_params->aparams;
num_ch = sst_get_num_channel(str_params);
pr_debug("period_size = %d\n", aparams->frag_size);
pr_debug("ring_buf_addr = 0x%x\n", aparams->ring_buf_info[0].addr);
pr_debug("ring_buf_size = %d\n", aparams->ring_buf_info[0].size);
pr_debug("In alloc device_type=%d\n", str_params->device_type);
pr_debug("In alloc sg_count =%d\n", aparams->sg_count);
mutex_lock(&sst_drv_ctx->stream_lock);
str_id = get_clv_stream_id(device);
mutex_unlock(&sst_drv_ctx->stream_lock);
if (str_id <= 0)
return -EBUSY;
/*allocate device type context*/
sst_init_stream(&sst_drv_ctx->streams[str_id], codec,
str_id, stream_ops, pcm_slot);
/* send msg to FW to allocate a stream */
if (sst_create_large_msg(&msg))
return -ENOMEM;
alloc_param.str_type.codec_type = codec;
alloc_param.str_type.str_type = SST_STREAM_TYPE_MUSIC;
alloc_param.str_type.operation = stream_ops;
alloc_param.str_type.protected_str = 0; /* non drm */
alloc_param.str_type.time_slots = pcm_slot;
alloc_param.str_type.reserved = 0;
alloc_param.str_type.result = 0;
memcpy(&alloc_param.stream_params, sparams,
sizeof(struct snd_sst_stream_params));
memcpy(&alloc_param.alloc_params, aparams,
sizeof(struct snd_sst_alloc_params_ext));
if (sst_drv_ctx->pci_id == SST_CLV_PCI_ID) {
sst_fill_header(&msg->header, IPC_IA_ALLOC_STREAM, 1, str_id);
msg->header.part.data = sizeof(alloc_param) + sizeof(u32);
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32), &alloc_param,
sizeof(alloc_param));
} else {
sst_fill_header_mrfld(&msg->mrfld_header, IPC_IA_ALLOC_STREAM,
1, str_id);
msg->mrfld_header.p.header_low_payload =
sizeof(alloc_param) + sizeof(u64);
memcpy(msg->mailbox_data, &msg->mrfld_header.p.header_high.full,
sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32),
&msg->mrfld_header.p.header_low_payload, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u64), &alloc_param,
sizeof(alloc_param));
}
str_info = &sst_drv_ctx->streams[str_id];
str_info->ctrl_blk.condition = false;
str_info->ctrl_blk.ret_code = 0;
str_info->ctrl_blk.on = true;
str_info->num_ch = num_ch;
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);
return str_id;
}