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Diffstat (limited to 'sound/soc/intel/atom/sst/sst_stream.c')
-rw-r--r--sound/soc/intel/atom/sst/sst_stream.c190
1 files changed, 113 insertions, 77 deletions
diff --git a/sound/soc/intel/atom/sst/sst_stream.c b/sound/soc/intel/atom/sst/sst_stream.c
index 83d8dda15233..288221db7323 100644
--- a/sound/soc/intel/atom/sst/sst_stream.c
+++ b/sound/soc/intel/atom/sst/sst_stream.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* sst_stream.c - Intel SST Driver for audio engine
*
@@ -8,22 +9,12 @@
* KP Jeeja <jeeja.kp@intel.com>
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
- * 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 <linux/pci.h>
#include <linux/firmware.h>
#include <linux/sched.h>
#include <linux/delay.h>
-#include <linux/pm_runtime.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
@@ -31,34 +22,34 @@
#include <asm/platform_sst_audio.h>
#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_pcm_params *pcm_params;
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;
+ int i, num_ch, str_id;
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_id = str_params->stream_id;
+ str_info = get_stream_info(sst_drv_ctx, str_id);
+ if (!str_info)
+ return -EINVAL;
+
+ memset(&str_info->alloc_param, 0, sizeof(str_info->alloc_param));
+ str_info->alloc_param.operation = str_params->ops;
+ str_info->alloc_param.codec_type = str_params->codec;
+ str_info->alloc_param.sg_count = str_params->aparams.sg_count;
+ str_info->alloc_param.ring_buf_info[0].addr =
str_params->aparams.ring_buf_info[0].addr;
- alloc_param.ring_buf_info[0].size =
+ str_info->alloc_param.ring_buf_info[0].size =
str_params->aparams.ring_buf_info[0].size;
- alloc_param.frag_size = str_params->aparams.frag_size;
+ str_info->alloc_param.frag_size = str_params->aparams.frag_size;
- memcpy(&alloc_param.codec_params, &str_params->sparams,
+ memcpy(&str_info->alloc_param.codec_params, &str_params->sparams,
sizeof(struct snd_sst_stream_params));
/*
@@ -68,47 +59,62 @@ int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params)
* Currently hardcoding as per FW reqm.
*/
num_ch = sst_get_num_channel(str_params);
+ pcm_params = &str_info->alloc_param.codec_params.uc.pcm_params;
for (i = 0; i < 8; i++) {
if (i < num_ch)
- alloc_param.codec_params.uc.pcm_params.channel_map[i] = i;
+ 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;
+ pcm_params->channel_map[i] = 0xff;
}
- 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].status = STREAM_INIT;
+ sst_drv_ctx->streams[str_id].prev = STREAM_UN_INIT;
+ sst_drv_ctx->streams[str_id].pipe_id = str_params->device_type;
+ sst_drv_ctx->streams[str_id].task_id = str_params->task;
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 +
+ str_info->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 +
+ str_info->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);
+ str_info->alloc_param.ts);
dev_dbg(sst_drv_ctx->dev, "assigned pipe id 0x%x to task %d\n",
- pipe_id, task_id);
+ str_info->pipe_id, str_info->task_id);
+
+ return sst_realloc_stream(sst_drv_ctx, str_id);
+}
+
+/**
+ * sst_realloc_stream - Send msg for (re-)allocating a stream using the
+ * @sst_drv_ctx: intel_sst_drv context pointer
+ * @str_id: stream ID
+ *
+ * Send a msg for (re-)allocating a stream using the parameters previously
+ * passed to sst_alloc_stream_mrfld() for the same stream ID.
+ * Return: 0 or negative errno value.
+ */
+int sst_realloc_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
+{
+ struct snd_sst_alloc_response *response;
+ struct stream_info *str_info;
+ void *data = NULL;
+ int ret;
- /* allocate device type context */
- sst_init_stream(&sst_drv_ctx->streams[str_id], alloc_param.codec_type,
- str_id, alloc_param.operation, 0);
+ str_info = get_stream_info(sst_drv_ctx, str_id);
+ if (!str_info)
+ return -EINVAL;
dev_dbg(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);
+ str_id, str_info->pipe_id);
+
+ ret = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id, IPC_CMD,
+ IPC_IA_ALLOC_STREAM_MRFLD, str_info->pipe_id,
+ sizeof(str_info->alloc_param), &str_info->alloc_param,
+ &data, true, true, false, true);
if (ret < 0) {
dev_err(sst_drv_ctx->dev, "FW alloc failed ret %d\n", ret);
@@ -134,12 +140,13 @@ out:
}
/**
-* 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.
-*/
+ * sst_start_stream - Send msg for a starting stream
+ * @sst_drv_ctx: intel_sst_drv context pointer
+ * @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;
@@ -166,10 +173,11 @@ int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx,
u32 length;
int pvt_id, ret = 0;
struct sst_block *block = NULL;
+ u8 bytes_block = bytes->block;
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->type, bytes->ipc_msg, bytes_block, bytes->task_id,
bytes->pipe_id, bytes->len);
if (sst_create_ipc_msg(&msg, true))
@@ -178,12 +186,12 @@ int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx,
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;
+ 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) {
+ if (bytes_block) {
block = sst_create_block(sst_drv_ctx, bytes->ipc_msg, pvt_id);
if (block == NULL) {
kfree(msg);
@@ -196,7 +204,7 @@ int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx,
dev_dbg(sst_drv_ctx->dev, "msg->mrfld_header.p.header_low_payload:%d",
msg->mrfld_header.p.header_low_payload);
- if (bytes->block) {
+ 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);
@@ -209,7 +217,7 @@ int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx,
* copy the reply and send back
* we need to update only sz and payload
*/
- if (bytes->block) {
+ if (bytes_block) {
unsigned char *r = block->data;
dev_dbg(sst_drv_ctx->dev, "read back %d bytes",
@@ -217,16 +225,17 @@ int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx,
memcpy(bytes->bytes, r, bytes->len);
}
}
- if (bytes->block)
+ if (bytes_block)
sst_free_block(sst_drv_ctx, block);
out:
test_and_clear_bit(pvt_id, &sst_drv_ctx->pvt_id);
- return 0;
+ return ret;
}
-/*
+/**
* sst_pause_stream - Send msg for a pausing stream
- * @str_id: stream ID
+ * @sst_drv_ctx: intel_sst_drv context pointer
+ * @str_id: stream ID
*
* This function is called by any function which wants to pause
* an already running stream.
@@ -254,7 +263,7 @@ int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
if (retval == 0) {
str_info->prev = str_info->status;
str_info->status = STREAM_PAUSED;
- } else if (retval == SST_ERR_INVALID_STREAM_ID) {
+ } else if (retval == -SST_ERR_INVALID_STREAM_ID) {
retval = -EINVAL;
mutex_lock(&sst_drv_ctx->sst_lock);
sst_clean_stream(str_info);
@@ -262,7 +271,7 @@ int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
}
} else {
retval = -EBADRQC;
- dev_dbg(sst_drv_ctx->dev, "SST DBG:BADRQC for stream\n ");
+ dev_dbg(sst_drv_ctx->dev, "SST DBG:BADRQC for stream\n");
}
return retval;
@@ -270,7 +279,8 @@ int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
/**
* sst_resume_stream - Send msg for resuming stream
- * @str_id: stream ID
+ * @sst_drv_ctx: intel_sst_drv context pointer
+ * @str_id: stream ID
*
* This function is called by any function which wants to resume
* an already paused stream.
@@ -285,8 +295,30 @@ int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
if (!str_info)
return -EINVAL;
if (str_info->status == STREAM_RUNNING)
- return 0;
- if (str_info->status == STREAM_PAUSED) {
+ return 0;
+
+ if (str_info->resume_status == STREAM_PAUSED &&
+ str_info->resume_prev == STREAM_RUNNING) {
+ /*
+ * Stream was running before suspend and re-created on resume,
+ * start it to get back to running state.
+ */
+ dev_dbg(sst_drv_ctx->dev, "restart recreated stream after resume\n");
+ str_info->status = STREAM_RUNNING;
+ str_info->prev = STREAM_PAUSED;
+ retval = sst_start_stream(sst_drv_ctx, str_id);
+ str_info->resume_status = STREAM_UN_INIT;
+ } else if (str_info->resume_status == STREAM_PAUSED &&
+ str_info->resume_prev == STREAM_INIT) {
+ /*
+ * Stream was idle before suspend and re-created on resume,
+ * keep it as is.
+ */
+ dev_dbg(sst_drv_ctx->dev, "leaving recreated stream idle after resume\n");
+ str_info->status = STREAM_INIT;
+ str_info->prev = STREAM_PAUSED;
+ str_info->resume_status = STREAM_UN_INIT;
+ } else 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,
@@ -315,7 +347,8 @@ int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
/**
* sst_drop_stream - Send msg for stopping stream
- * @str_id: stream ID
+ * @sst_drv_ctx: intel_sst_drv context pointer
+ * @str_id: stream ID
*
* This function is called by any function which wants to stop
* a stream.
@@ -347,12 +380,14 @@ int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
}
/**
-* 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.
-*/
+ * sst_drain_stream - Send msg for draining stream
+ * @sst_drv_ctx: intel_sst_drv context pointer
+ * @str_id: stream ID
+ * @partial_drain: boolean indicating if a gapless transition is taking place
+ *
+ * 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)
{
@@ -385,7 +420,8 @@ int sst_drain_stream(struct intel_sst_drv *sst_drv_ctx,
/**
* sst_free_stream - Frees a stream
- * @str_id: stream ID
+ * @sst_drv_ctx: intel_sst_drv context pointer
+ * @str_id: stream ID
*
* This function is called by any function which wants to free
* a stream.
generated by cgit (git 2.34.1) at 2025-12-25 10:07:21 +0000