From: Sugar Zhang <sugar.zhang@rock-chips.com>
To: heiko@sntech.de, vkoul@kernel.org
Cc: linux-rockchip@lists.infradead.org,
Sugar Zhang <sugar.zhang@rock-chips.com>,
dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v1] dmaengine: Add support for audio interleaved transfer
Date: Mon, 25 Mar 2024 10:37:49 +0800 [thread overview]
Message-ID: <20240325103731.v1.1.I502ea9c86c8403dc5b1f38abf40be8b6ee13c1dc@changeid> (raw)
This patch add support for interleaved transfer which used
for interleaved audio or 2d video data transfer.
for audio situation, we add 'nump' for number of period frames.
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---
include/linux/dmaengine.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 752dbde..5263cde 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -144,6 +144,7 @@ struct data_chunk {
* Otherwise, destination is filled contiguously (icg ignored).
* Ignored if dst_inc is false.
* @numf: Number of frames in this template.
+ * @nump: Number of period frames in this template.
* @frame_size: Number of chunks in a frame i.e, size of sgl[].
* @sgl: Array of {chunk,icg} pairs that make up a frame.
*/
@@ -156,6 +157,7 @@ struct dma_interleaved_template {
bool src_sgl;
bool dst_sgl;
size_t numf;
+ size_t nump;
size_t frame_size;
struct data_chunk sgl[];
};
--
2.7.4
next reply other threads:[~2024-03-25 3:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-25 2:37 Sugar Zhang [this message]
2024-03-25 9:32 ` [PATCH v1] dmaengine: Add support for audio interleaved transfer Heiko Stübner
2024-03-28 7:00 ` Vinod Koul
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