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/*
* camss-vfe.h
*
* Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module
*
* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
* Copyright (C) 2015-2017 Linaro Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef QC_MSM_CAMSS_VFE_H
#define QC_MSM_CAMSS_VFE_H
#include <linux/clk.h>
#include <linux/spinlock_types.h>
#include <media/media-entity.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
#include "camss-video.h"
#define MSM_VFE_PAD_SINK 0
#define MSM_VFE_PAD_SRC 1
#define MSM_VFE_PADS_NUM 2
#define MSM_VFE_LINE_NUM 4
#define MSM_VFE_IMAGE_MASTERS_NUM 7
#define MSM_VFE_COMPOSITE_IRQ_NUM 4
#define MSM_VFE_VFE0_UB_SIZE 1023
#define MSM_VFE_VFE0_UB_SIZE_RDI (MSM_VFE_VFE0_UB_SIZE / 3)
#define MSM_VFE_VFE1_UB_SIZE 1535
#define MSM_VFE_VFE1_UB_SIZE_RDI (MSM_VFE_VFE1_UB_SIZE / 3)
enum vfe_output_state {
VFE_OUTPUT_OFF,
VFE_OUTPUT_RESERVED,
VFE_OUTPUT_SINGLE,
VFE_OUTPUT_CONTINUOUS,
VFE_OUTPUT_IDLE,
VFE_OUTPUT_STOPPING
};
enum vfe_line_id {
VFE_LINE_NONE = -1,
VFE_LINE_RDI0 = 0,
VFE_LINE_RDI1 = 1,
VFE_LINE_RDI2 = 2,
VFE_LINE_PIX = 3
};
struct vfe_output {
u8 wm_num;
u8 wm_idx[3];
int active_buf;
struct camss_buffer *buf[2];
struct camss_buffer *last_buffer;
struct list_head pending_bufs;
unsigned int drop_update_idx;
enum vfe_output_state state;
unsigned int sequence;
int wait_sof;
int wait_reg_update;
struct completion sof;
struct completion reg_update;
};
struct vfe_line {
enum vfe_line_id id;
struct v4l2_subdev subdev;
struct media_pad pads[MSM_VFE_PADS_NUM];
struct v4l2_mbus_framefmt fmt[MSM_VFE_PADS_NUM];
struct v4l2_rect compose;
struct v4l2_rect crop;
struct camss_video video_out;
struct vfe_output output;
};
struct vfe_device {
u8 id;
void __iomem *base;
u32 irq;
char irq_name[30];
struct camss_clock *clock;
int nclocks;
struct completion reset_complete;
struct completion halt_complete;
struct mutex power_lock;
int power_count;
struct mutex stream_lock;
int stream_count;
spinlock_t output_lock;
enum vfe_line_id wm_output_map[MSM_VFE_IMAGE_MASTERS_NUM];
struct vfe_line line[MSM_VFE_LINE_NUM];
u32 reg_update;
u8 was_streaming;
};
struct resources;
int msm_vfe_subdev_init(struct vfe_device *vfe, const struct resources *res);
int msm_vfe_register_entities(struct vfe_device *vfe,
struct v4l2_device *v4l2_dev);
void msm_vfe_unregister_entities(struct vfe_device *vfe);
void msm_vfe_get_vfe_id(struct media_entity *entity, u8 *id);
void msm_vfe_get_vfe_line_id(struct media_entity *entity, enum vfe_line_id *id);
void msm_vfe_stop_streaming(struct vfe_device *vfe);
#endif /* QC_MSM_CAMSS_VFE_H */
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