linux-kernel - [PATCH v12 12/15] media: uapi: Add an entity type for audio resampler

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Message-Id: <1705581128-4604-13-git-send-email-shengjiu.wang@nxp.com>
Date: Thu, 18 Jan 2024 20:32:05 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: hverkuil@...all.nl,
	sakari.ailus@....fi,
	tfiga@...omium.org,
	m.szyprowski@...sung.com,
	mchehab@...nel.org,
	linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	shengjiu.wang@...il.com,
	Xiubo.Lee@...il.com,
	festevam@...il.com,
	nicoleotsuka@...il.com,
	lgirdwood@...il.com,
	broonie@...nel.org,
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	alsa-devel@...a-project.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v12 12/15] media: uapi: Add an entity type for audio resampler

Add and document a media entity type for an audio resampler.
It is MEDIA_ENT_F_PROC_AUDIO_RESAMPLER.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 Documentation/userspace-api/media/mediactl/media-types.rst | 6 ++++++
 include/uapi/linux/media.h                                 | 1 +
 2 files changed, 7 insertions(+)

diff --git a/Documentation/userspace-api/media/mediactl/media-types.rst b/Documentation/userspace-api/media/mediactl/media-types.rst
index f0880aea41d6..9ca6542517d5 100644
--- a/Documentation/userspace-api/media/mediactl/media-types.rst
+++ b/Documentation/userspace-api/media/mediactl/media-types.rst
@@ -40,6 +40,7 @@ Types and flags used to represent the media graph elements
 .. _MEDIA-ENT-F-PROC-VIDEO-ENCODER:
 .. _MEDIA-ENT-F-PROC-VIDEO-DECODER:
 .. _MEDIA-ENT-F-PROC-VIDEO-ISP:
+.. _MEDIA-ENT-F-PROC-AUDIO-RESAMPLER:
 .. _MEDIA-ENT-F-VID-MUX:
 .. _MEDIA-ENT-F-VID-IF-BRIDGE:
 .. _MEDIA-ENT-F-DV-DECODER:
@@ -208,6 +209,11 @@ Types and flags used to represent the media graph elements
 	  combination of custom V4L2 controls and IOCTLs, and parameters
 	  supplied in a metadata buffer.
 
+    *  -  ``MEDIA_ENT_F_PROC_AUDIO_RESAMPLER``
+       -  An Audio Resampler device. An entity capable of
+	  resampling an audio stream from one sample rate to another sample
+	  rate. Must have one sink pad and at least one source pad.
+
     *  -  ``MEDIA_ENT_F_VID_MUX``
        - Video multiplexer. An entity capable of multiplexing must have at
          least two sink pads and one source pad, and must pass the video
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index 9ff6dec7393a..a8266eaa8042 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -125,6 +125,7 @@ struct media_device_info {
 #define MEDIA_ENT_F_PROC_VIDEO_ENCODER		(MEDIA_ENT_F_BASE + 0x4007)
 #define MEDIA_ENT_F_PROC_VIDEO_DECODER		(MEDIA_ENT_F_BASE + 0x4008)
 #define MEDIA_ENT_F_PROC_VIDEO_ISP		(MEDIA_ENT_F_BASE + 0x4009)
+#define MEDIA_ENT_F_PROC_AUDIO_RESAMPLER	(MEDIA_ENT_F_BASE + 0x400a)
 
 /*
  * Switch and bridge entity functions
-- 
2.34.1