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Date: Sun, 18 Feb 2018 23:01:42 +0100
From: Hans de Goede <hdegoede@...hat.com>
To: Mark Brown <broonie@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>
Cc: Hans de Goede <hdegoede@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 5/9] ASoC: Intel: sst: Add sst_realloc_stream() function
Move the struct snd_sst_alloc_mrfld alloc parameters from the stack
into struct stream_info and add a new sst_realloc_stream() function which
can re-alloc a stream with the same parameters as before.
This is a preparation patch for fixing suspend/resume issues with some
SST / DSP firmware versions.
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
---
sound/soc/intel/atom/sst/sst.h | 3 ++
sound/soc/intel/atom/sst/sst_stream.c | 88 +++++++++++++++++++++--------------
2 files changed, 56 insertions(+), 35 deletions(-)
diff --git a/sound/soc/intel/atom/sst/sst.h b/sound/soc/intel/atom/sst/sst.h
index f4fd442080b2..a357cd615b59 100644
--- a/sound/soc/intel/atom/sst/sst.h
+++ b/sound/soc/intel/atom/sst/sst.h
@@ -180,6 +180,7 @@ struct sst_block {
* @status : stream current state
* @prev : stream prev state
* @lock : stream mutex for protecting state
+ * @alloc_param : parameters used for stream (re-)allocation
* @pcm_substream : PCM substream
* @period_elapsed : PCM period elapsed callback
* @sfreq : stream sampling freq
@@ -189,6 +190,7 @@ struct stream_info {
unsigned int status;
unsigned int prev;
struct mutex lock;
+ struct snd_sst_alloc_mrfld alloc_param;
void *pcm_substream;
void (*period_elapsed)(void *pcm_substream);
@@ -429,6 +431,7 @@ struct intel_sst_ops {
void (*post_download)(struct intel_sst_drv *sst);
};
+int sst_realloc_stream(struct intel_sst_drv *sst_drv_ctx, int str_id);
int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int id);
int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int id);
int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int id);
diff --git a/sound/soc/intel/atom/sst/sst_stream.c b/sound/soc/intel/atom/sst/sst_stream.c
index 7cf5dd1993bc..fcedaa237505 100644
--- a/sound/soc/intel/atom/sst/sst_stream.c
+++ b/sound/soc/intel/atom/sst/sst_stream.c
@@ -35,29 +35,31 @@
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");
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));
/*
@@ -67,46 +69,62 @@ 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;
+ 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].status = STREAM_INIT;
sst_drv_ctx->streams[str_id].prev = STREAM_UN_INIT;
- 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].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;
+
+ str_info = get_stream_info(sst_drv_ctx, str_id);
+ if (!str_info)
+ return -EINVAL;
- /* allocate device type context */
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);
--
2.14.3
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