Re: [PATCH 1/2] media: add support for decoder subdevs along with sensor and others
Hi Sylwester, On Sat, Jan 26, 2013 at 1:24 AM, Sylwester Nawrocki wrote: > Hi Prahakar, > > > On 01/25/2013 08:01 AM, Prabhakar Lad wrote: >> >> From: Manjunath Hadli >> >> A lot of SOCs including Texas Instruments Davinci family mainly use >> video decoders as input devices. Here the initial subdevice node >> from where the input really comes is this decoder, for which support >> is needed as part of the Media Controller infrastructure. This patch >> adds an additional flag to include the decoders along with others, >> such as the sensor and lens. >> >> Signed-off-by: Manjunath Hadli >> Signed-off-by: Lad, Prabhakar >> --- >> include/uapi/linux/media.h |1 + >> 1 files changed, 1 insertions(+), 0 deletions(-) >> >> diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h >> index 0ef8833..fa44ed9 100644 >> --- a/include/uapi/linux/media.h >> +++ b/include/uapi/linux/media.h >> @@ -56,6 +56,7 @@ struct media_device_info { >> #define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR(MEDIA_ENT_T_V4L2_SUBDEV + >> 1) >> #define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV + 2) >> #define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV + 3) >> +#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER(MEDIA_ENT_T_V4L2_SUBDEV + >> 4) > > > Such a new entity type needs to be documented in the media DocBook [1]. > It probably also deserves a comment here, as DECODER isn't that obvious > like the other already existing entity types. I heard people referring > to a device that encodes analog (composite) video signal into its digital > representation as an ENCODER. :) > > Thanks for pointing it :), I'll document it and post a v2. Regards, --Prabhakar Lad > [1] http://hverkuil.home.xs4all.nl/spec/media.html#media-ioc-enum-entities > > -- > > Regards, > Sylwester -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 1/2] media: add support for decoder subdevs along with sensor and others
Hi Prahakar, On 01/25/2013 08:01 AM, Prabhakar Lad wrote: From: Manjunath Hadli A lot of SOCs including Texas Instruments Davinci family mainly use video decoders as input devices. Here the initial subdevice node from where the input really comes is this decoder, for which support is needed as part of the Media Controller infrastructure. This patch adds an additional flag to include the decoders along with others, such as the sensor and lens. Signed-off-by: Manjunath Hadli Signed-off-by: Lad, Prabhakar --- include/uapi/linux/media.h |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h index 0ef8833..fa44ed9 100644 --- a/include/uapi/linux/media.h +++ b/include/uapi/linux/media.h @@ -56,6 +56,7 @@ struct media_device_info { #define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR(MEDIA_ENT_T_V4L2_SUBDEV + 1) #define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV + 2) #define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV + 3) +#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER(MEDIA_ENT_T_V4L2_SUBDEV + 4) Such a new entity type needs to be documented in the media DocBook [1]. It probably also deserves a comment here, as DECODER isn't that obvious like the other already existing entity types. I heard people referring to a device that encodes analog (composite) video signal into its digital representation as an ENCODER. :) [1] http://hverkuil.home.xs4all.nl/spec/media.html#media-ioc-enum-entities -- Regards, Sylwester -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 1/2] media: add support for decoder subdevs along with sensor and others
Hi Prahakar, On 01/25/2013 08:01 AM, Prabhakar Lad wrote: From: Manjunath Hadlimanjunath.ha...@ti.com A lot of SOCs including Texas Instruments Davinci family mainly use video decoders as input devices. Here the initial subdevice node from where the input really comes is this decoder, for which support is needed as part of the Media Controller infrastructure. This patch adds an additional flag to include the decoders along with others, such as the sensor and lens. Signed-off-by: Manjunath Hadlimanjunath.ha...@ti.com Signed-off-by: Lad, Prabhakarprabhakar@ti.com --- include/uapi/linux/media.h |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h index 0ef8833..fa44ed9 100644 --- a/include/uapi/linux/media.h +++ b/include/uapi/linux/media.h @@ -56,6 +56,7 @@ struct media_device_info { #define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR(MEDIA_ENT_T_V4L2_SUBDEV + 1) #define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV + 2) #define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV + 3) +#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER(MEDIA_ENT_T_V4L2_SUBDEV + 4) Such a new entity type needs to be documented in the media DocBook [1]. It probably also deserves a comment here, as DECODER isn't that obvious like the other already existing entity types. I heard people referring to a device that encodes analog (composite) video signal into its digital representation as an ENCODER. :) [1] http://hverkuil.home.xs4all.nl/spec/media.html#media-ioc-enum-entities -- Regards, Sylwester -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 1/2] media: add support for decoder subdevs along with sensor and others
Hi Sylwester, On Sat, Jan 26, 2013 at 1:24 AM, Sylwester Nawrocki sylvester.nawro...@gmail.com wrote: Hi Prahakar, On 01/25/2013 08:01 AM, Prabhakar Lad wrote: From: Manjunath Hadlimanjunath.ha...@ti.com A lot of SOCs including Texas Instruments Davinci family mainly use video decoders as input devices. Here the initial subdevice node from where the input really comes is this decoder, for which support is needed as part of the Media Controller infrastructure. This patch adds an additional flag to include the decoders along with others, such as the sensor and lens. Signed-off-by: Manjunath Hadlimanjunath.ha...@ti.com Signed-off-by: Lad, Prabhakarprabhakar@ti.com --- include/uapi/linux/media.h |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h index 0ef8833..fa44ed9 100644 --- a/include/uapi/linux/media.h +++ b/include/uapi/linux/media.h @@ -56,6 +56,7 @@ struct media_device_info { #define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR(MEDIA_ENT_T_V4L2_SUBDEV + 1) #define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV + 2) #define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV + 3) +#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER(MEDIA_ENT_T_V4L2_SUBDEV + 4) Such a new entity type needs to be documented in the media DocBook [1]. It probably also deserves a comment here, as DECODER isn't that obvious like the other already existing entity types. I heard people referring to a device that encodes analog (composite) video signal into its digital representation as an ENCODER. :) Thanks for pointing it :), I'll document it and post a v2. Regards, --Prabhakar Lad [1] http://hverkuil.home.xs4all.nl/spec/media.html#media-ioc-enum-entities -- Regards, Sylwester -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/