Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 78b22f65 authored by Maheshwar Ajja's avatar Maheshwar Ajja
Browse files

msm: vidc: Add CVP interface 



V4l2 driver interface for CVP (Computer Vision
Program) clients.

Change-Id: I35547cfdbda445d65dbbd715b5be6f375ad41c86
Signed-off-by: default avatarMaheshwar Ajja <majja@codeaurora.org>
parent 3e921e11

include/uapi/linux/videodev2.h

+7 −0
Original line number Diff line number Diff line
@@ -2268,6 +2268,10 @@ struct v4l2_streamparm { 
#define V4L2_EVENT_MSM_VIDC_HW_OVERLOAD (V4L2_EVENT_MSM_VIDC_START + 8)

#define V4L2_EVENT_MSM_VIDC_MAX_CLIENTS (V4L2_EVENT_MSM_VIDC_START + 9)

#define V4L2_EVENT_MSM_VIDC_HW_UNSUPPORTED (V4L2_EVENT_MSM_VIDC_START + 10)

#define V4L2_EVENT_MSM_VIDC_REGISTER_BUFFER_DONE \

		(V4L2_EVENT_MSM_VIDC_START + 11)

#define V4L2_EVENT_MSM_VIDC_UNREGISTER_BUFFER_DONE \

		(V4L2_EVENT_MSM_VIDC_START + 12)



/* Payload for V4L2_EVENT_VSYNC */

struct v4l2_event_vsync {
@@ -2513,4 +2517,7 @@ struct v4l2_create_buffers { 


#define BASE_VIDIOC_PRIVATE	192		/* 192-255 are private */



/* (BASE_VIDIOC_PRIVATE + 0) is private ioctl code for video module */

#define BASE_VIDIOC_PRIVATE_VIDEO	(BASE_VIDIOC_PRIVATE + 0)



#endif /* _UAPI__LINUX_VIDEODEV2_H */

include/uapi/media/msm_vidc_private.h

0 → 100644
+122 −0
Original line number Diff line number Diff line 
#ifndef __MSM_VIDC_PRIVATE_H__

#define __MSM_VIDC_PRIVATE_H__



#include <linux/videodev2.h>



/* VIDIOC private video command */

#define VIDIOC_VIDEO_CMD \

		_IOWR('V', BASE_VIDIOC_PRIVATE_VIDEO, struct msm_vidc_arg)



/* Commands type */

#define MSM_VIDC_CMD_START			0x10000000

#define MSM_CVP_START				(MSM_VIDC_CMD_START + 0x1000)



/*

 * userspace clients pass one of the below arguments type

 * in struct msm_vidc_arg (@type field).

 */



/*

 * MSM_CVP_GET_SESSION_INFO - this argument type is used to

 *          get the session information from driver. it passes

 *          struct msm_cvp_session_info {}

 */

#define MSM_CVP_GET_SESSION_INFO	(MSM_CVP_START + 1)



/*

 * MSM_CVP_REQUEST_POWER - this argument type is used to

 *          set the power required to driver. it passes

 *          struct msm_cvp_request_power {}

 */

#define MSM_CVP_REQUEST_POWER		(MSM_CVP_START + 2)



/*

 * MSM_CVP_REGISTER_BUFFER - this argument type is used to

 *          register the buffer to driver. it passes

 *          struct msm_cvp_buffer {}

 */

#define MSM_CVP_REGISTER_BUFFER		(MSM_CVP_START + 3)



/*

 * MSM_CVP_REGISTER_BUFFER - this argument type is used to

 *          unregister the buffer to driver. it passes

 *          struct msm_cvp_buffer {}

 */

#define MSM_CVP_UNREGISTER_BUFFER	(MSM_CVP_START + 4)



/* flags */

#define MSM_CVP_FLAG_UNSECURE			0x00000000

#define MSM_CVP_FLAG_SECURE			0x00000001



/* buffer type */

#define MSM_CVP_BUFTYPE_INPUT			0x00000001

#define MSM_CVP_BUFTYPE_OUTPUT			0x00000002

#define MSM_CVP_BUFTYPE_INTERNAL_1		0x00000003

#define MSM_CVP_BUFTYPE_INTERNAL_2		0x00000004





/**

 * struct msm_cvp_session_info - session information

 * @session_id:    current session id

 */

struct msm_cvp_session_info {

	unsigned int session_id;

	unsigned int reserved[10];

};



/**

 * struct msm_cvp_request_power - power / clock data information

 * @clock_cycles_a:  clock cycles per second required for hardware_a

 * @clock_cycles_b:  clock cycles per second required for hardware_b

 * @ddr_bw:        bandwidth required for ddr in bps

 * @sys_cache_bw:  bandwidth required for system cache in bps

 */

struct msm_cvp_request_power {

	unsigned int clock_cycles_a;

	unsigned int clock_cycles_b;

	unsigned int ddr_bw;

	unsigned int sys_cache_bw;

	unsigned int reserved[8];

};



/**

 * struct msm_cvp_buffer - buffer information to be registered

 * @index:         index of buffer

 * @type:          buffer type

 * @fd:            file descriptor of buffer

 * @size:          allocated size of buffer

 * @offset:        offset in fd from where usable data starts

 * @pixelformat:   fourcc format

 * @flags:         buffer flags

 */

struct msm_cvp_buffer {

	unsigned int index;

	unsigned int type;

	unsigned int fd;

	unsigned int size;

	unsigned int offset;

	unsigned int pixelformat;

	unsigned int flags;

	unsigned int reserved[5];

};



/**

 * struct msm_vidc_arg - argument passed with VIDIOC_VIDEO_CMD

 * @type:          command type

 * @session:       session information

 * @req_power:     power information

 * @regbuf:        buffer to be registered

 * @unregbuf:      buffer to be unregistered

 */

struct msm_vidc_arg {

	unsigned int type;

	union data_t {

		struct msm_cvp_session_info session;

		struct msm_cvp_request_power req_power;

		struct msm_cvp_buffer regbuf;

		struct msm_cvp_buffer unregbuf;

	} data;

	unsigned int reserved[12];

};



#endif