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[86.26.100.93]) by smtp.gmail.com with ESMTPSA id b12sm4442648wrx.11.2018.09.26.03.25.55 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 26 Sep 2018 03:25:56 -0700 (PDT) From: Srinivas Kandagatla To: broonie@kernel.org, alsa-devel@alsa-project.org, robh+dt@kernel.org Cc: linux-kernel@vger.kernel.org, vkoul@kernel.org, bgoswami@codeaurora.org, rohitkr@codeaurora.org, lgirdwood@gmail.com, tiwai@suse.com, devicetree@vger.kernel.org, mark.rutland@arm.com, Srinivas Kandagatla Subject: [PATCH v2 1/5] ALSA: soc-compress: add support to snd_compr_set_runtime_buffer() Date: Wed, 26 Sep 2018 11:23:45 +0100 Message-Id: <20180926102349.23481-2-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20180926102349.23481-1-srinivas.kandagatla@linaro.org> References: <20180926102349.23481-1-srinivas.kandagatla@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds support to set runtime dma buffer on compressed stream. Signed-off-by: Srinivas Kandagatla --- 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