From: Sylwester Nawrocki <snjw23@gmail.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>,
linux-media@vger.kernel.org, g.liakhovetski@gmx.de,
sakari.ailus@iki.fi, m.szyprowski@samsung.com,
riverful.kim@samsung.com, sw0312.kim@samsung.com,
Kyungmin Park <kyungmin.park@samsung.com>
Subject: Re: [RFC/PATCH 3/6] V4L: Add g_embedded_data subdev callback
Date: Sat, 18 Feb 2012 00:33:23 +0100 [thread overview]
Message-ID: <4F3EE3C3.6070605@gmail.com> (raw)
In-Reply-To: <6366737.ZEMB1VQOcD@avalon>
Hi Laurent,
On 02/18/2012 12:23 AM, Laurent Pinchart wrote:
>> struct v4l2_subdev_video_ops {
>> int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32
>> config); @@ -321,6 +329,8 @@ struct v4l2_subdev_video_ops {
>> struct v4l2_mbus_config *cfg);
>> int (*s_mbus_config)(struct v4l2_subdev *sd,
>> const struct v4l2_mbus_config *cfg);
>> + int (*g_embedded_data)(struct v4l2_subdev *sd, unsigned int *size,
>> + void **buf);
>> };
>
> How is the embedded data transferred from the sensor to the host in your case
> ? Over I2C ?
It's transferred over MIPI-CSI2 bus and is intercepted by the MIPI-CSI2
receiver, before the image data DMA. The MIPI-CSI2 doesn't have its own
DMA engine. More details can be found in patch 6/6.
--
Regards,
Sylwester
next prev parent reply other threads:[~2012-02-17 23:33 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-16 18:23 [RFC/PATCH 0/6] Interleaved image data on media bus Sylwester Nawrocki
2012-02-16 18:23 ` [RFC/PATCH 1/6] V4L: Add V4L2_MBUS_FMT_VYUY_JPEG_I1_1X8 media bus format Sylwester Nawrocki
2012-02-16 19:46 ` Sakari Ailus
2012-02-17 14:26 ` Sylwester Nawrocki
2012-02-17 18:15 ` Sakari Ailus
2012-02-18 15:51 ` Sylwester Nawrocki
2012-02-26 22:25 ` Sakari Ailus
2012-02-27 21:25 ` Sylwester Nawrocki
2012-02-17 23:22 ` Laurent Pinchart
2012-02-16 18:23 ` [RFC/PATCH 2/6] V4L: Add V4L2_PIX_FMT_JPG_YUV_S5C fourcc definition Sylwester Nawrocki
2012-02-16 18:23 ` [RFC/PATCH 3/6] V4L: Add g_embedded_data subdev callback Sylwester Nawrocki
2012-02-17 23:23 ` Laurent Pinchart
2012-02-17 23:33 ` Sylwester Nawrocki [this message]
2012-02-18 1:43 ` Laurent Pinchart
2012-02-18 2:20 ` Sakari Ailus
2012-02-18 15:18 ` Sylwester Nawrocki
2012-02-16 18:23 ` [RFC/PATCH 4/6] V4L: Add get/set_frame_config subdev callbacks Sylwester Nawrocki
2012-02-16 22:44 ` Sakari Ailus
2012-02-17 10:48 ` Sylwester Nawrocki
2012-02-16 18:23 ` [RFC/PATCH 5/6] s5p-fimc: Add support for V4L2_PIX_FMT_JPG_YUYV_S5C fourcc Sylwester Nawrocki
2012-02-16 18:23 ` [RFC/PATCH 6/6] s5p-csis: Add support for non-image data packets capture Sylwester Nawrocki
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