diff mbox series

[v2,1/5] ALSA: soc-compress: add support to snd_compr_set_runtime_buffer()

Message ID 20180926102349.23481-2-srinivas.kandagatla@linaro.org (mailing list archive)
State New, archived
Headers show
Series ASoC: qdsp6: add compress offload support | expand

Commit Message

Srinivas Kandagatla Sept. 26, 2018, 10:23 a.m. UTC
This patch adds support to set runtime dma buffer on compressed stream.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 include/sound/compress_driver.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Comments

Vinod Koul Oct. 5, 2018, 12:31 a.m. UTC | #1
On 26-09-18, 11:23, Srinivas Kandagatla wrote:
> This patch adds support to set runtime dma buffer on compressed stream.

The change is fine as is, but I feel we need to document the motivation
in the changelog. The core changes need a bit more explanation on why we
should add this..

> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>  include/sound/compress_driver.h | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
> index ea8c93bbb0e0..0cdc3999ecfa 100644
> --- a/include/sound/compress_driver.h
> +++ b/include/sound/compress_driver.h
> @@ -23,6 +23,7 @@ struct snd_compr_ops;
>   * struct snd_compr_runtime: runtime stream description
>   * @state: stream state
>   * @ops: pointer to DSP callbacks
> + * @dma_buffer_p: runtime dma buffer pointer
>   * @buffer: pointer to kernel buffer, valid only when not in mmap mode or
>   *	DSP doesn't implement copy
>   * @buffer_size: size of the above buffer
> @@ -37,6 +38,7 @@ struct snd_compr_ops;
>  struct snd_compr_runtime {
>  	snd_pcm_state_t state;
>  	struct snd_compr_ops *ops;
> +	struct snd_dma_buffer *dma_buffer_p;
>  	void *buffer;
>  	u64 buffer_size;
>  	u32 fragment_size;
> @@ -175,6 +177,23 @@ static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
>  	wake_up(&stream->runtime->sleep);
>  }
>  
> +/**
> + * snd_compr_set_runtime_buffer - Set the Compress runtime buffer
> + * @substream: compress substream to set
> + * @bufp: the buffer information, NULL to clear
> + *
> + * Copy the buffer information to runtime buffer when @bufp is non-NULL.
> + * Otherwise it clears the current buffer information.
> + */
> +static inline void snd_compr_set_runtime_buffer(
> +					struct snd_compr_stream *substream,
> +					struct snd_dma_buffer *bufp)
> +{
> +	struct snd_compr_runtime *runtime = substream->runtime;
> +
> +	runtime->dma_buffer_p = bufp;
> +}
> +
>  int snd_compr_stop_error(struct snd_compr_stream *stream,
>  			 snd_pcm_state_t state);
>  
> -- 
> 2.19.0
Srinivas Kandagatla Oct. 5, 2018, 8:16 a.m. UTC | #2
Thanks for review!

On 05/10/18 01:31, Vinod wrote:
> On 26-09-18, 11:23, Srinivas Kandagatla wrote:
>> This patch adds support to set runtime dma buffer on compressed stream.
> The change is fine as is, but I feel we need to document the motivation
> in the changelog. The core changes need a bit more explanation on why we
> should add this..

Sure, I will add more information into the change log in next version.

--srini

> 
>> Signed-off-by: Srinivas Kandagatla<srinivas.kandagatla@linaro.org>
>> ---
>>   include/sound/compress_driver.h | 19 +++++++++++++++++++
>>   1 file changed, 19 insertions(+)
>>
>> diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
>> index ea8c93bbb0e0..0cdc3999ecfa 100644
>> --- a/include/sound/compress_driver.h
>> +++ b/include/sound/compress_driver.h
>> @@ -23,6 +23,7 @@ struct snd_compr_ops;
>>    * struct snd_compr_runtime: runtime stream description
>>    * @state: stream state
>>    * @ops: pointer to DSP callbacks
diff mbox series

Patch

diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
index ea8c93bbb0e0..0cdc3999ecfa 100644
--- a/include/sound/compress_driver.h
+++ b/include/sound/compress_driver.h
@@ -23,6 +23,7 @@  struct snd_compr_ops;
  * struct snd_compr_runtime: runtime stream description
  * @state: stream state
  * @ops: pointer to DSP callbacks
+ * @dma_buffer_p: runtime dma buffer pointer
  * @buffer: pointer to kernel buffer, valid only when not in mmap mode or
  *	DSP doesn't implement copy
  * @buffer_size: size of the above buffer
@@ -37,6 +38,7 @@  struct snd_compr_ops;
 struct snd_compr_runtime {
 	snd_pcm_state_t state;
 	struct snd_compr_ops *ops;
+	struct snd_dma_buffer *dma_buffer_p;
 	void *buffer;
 	u64 buffer_size;
 	u32 fragment_size;
@@ -175,6 +177,23 @@  static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
 	wake_up(&stream->runtime->sleep);
 }
 
+/**
+ * snd_compr_set_runtime_buffer - Set the Compress runtime buffer
+ * @substream: compress substream to set
+ * @bufp: the buffer information, NULL to clear
+ *
+ * Copy the buffer information to runtime buffer when @bufp is non-NULL.
+ * Otherwise it clears the current buffer information.
+ */
+static inline void snd_compr_set_runtime_buffer(
+					struct snd_compr_stream *substream,
+					struct snd_dma_buffer *bufp)
+{
+	struct snd_compr_runtime *runtime = substream->runtime;
+
+	runtime->dma_buffer_p = bufp;
+}
+
 int snd_compr_stop_error(struct snd_compr_stream *stream,
 			 snd_pcm_state_t state);