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