On 31/07/18 11:31, Oleksandr Andrushchenko wrote:
> From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com>
>
> This is the ABI for the two halves of a para-virtualized
> camera driver which extends Xen's reach multimedia capabilities even
> farther enabling it for video conferencing, In-Vehicle Infotainment,
> high definition maps etc.
>
> The initial goal is to support most needed functionality with the
> final idea to make it possible to extend the protocol if need be:
>
> 1. Provide means for base virtual device configuration:
> - pixel formats
> - resolutions
> - frame rates
> 2. Support basic camera controls:
> - contrast
> - brightness
> - hue
> - saturation
> 3. Support streaming control
> 4. Support zero-copying use-cases
>
> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com>
Some style issues below...
> ---
> xen/include/public/io/cameraif.h | 981 +++++++++++++++++++++++++++++++
> 1 file changed, 981 insertions(+)
> create mode 100644 xen/include/public/io/cameraif.h
>
> diff --git a/xen/include/public/io/cameraif.h
> b/xen/include/public/io/cameraif.h
> new file mode 100644
> index 000000000000..bdc6a1262fcf
> --- /dev/null
> +++ b/xen/include/public/io/cameraif.h
> +struct xencamera_config {
> + uint32_t pixel_format;
> + uint32_t width;
> + uint32_t height;
> + uint32_t frame_rate_nom;
> + uint32_t frame_rate_denom;
> + uint8_t num_bufs;
Add explicit padding?
> +};
> +struct xencamera_req {
> + uint16_t id;
> + uint8_t operation;
> + uint8_t reserved[5];
> + union {
> + struct xencamera_config config;
> + struct xencamera_buf_create_req buf_create;
> + struct xencamera_buf_destroy_req buf_destroy;
> + struct xencamera_set_ctrl_req set_ctrl;
No tabs, please.
> + uint8_t reserved[56];
> + } req;
> +};
> +
> +struct xencamera_resp {
> + uint16_t id;
> + uint8_t operation;
> + uint8_t reserved;
> + int32_t status;
> + union {
> + struct xencamera_config config;
> + struct xencamera_buf_details_resp buf_details;
> + struct xencamera_get_ctrl_details_resp ctrl_details;
Tab again.
> + uint8_t reserved1[56];
> + } resp;
> +};
Juergen
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