mirror of https://gitee.com/openkylin/linux.git
97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
/*
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* Samsung S5P G2D - 2D Graphics Accelerator Driver
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*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Kamil Debski, <k.debski@samsung.com>
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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 as published by the
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* Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version
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*/
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#include <linux/platform_device.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ctrls.h>
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#define G2D_NAME "s5p-g2d"
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#define TYPE_G2D_3X 3
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#define TYPE_G2D_4X 4
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struct g2d_dev {
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struct v4l2_device v4l2_dev;
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struct v4l2_m2m_dev *m2m_dev;
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struct video_device *vfd;
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struct mutex mutex;
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spinlock_t ctrl_lock;
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atomic_t num_inst;
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struct vb2_alloc_ctx *alloc_ctx;
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void __iomem *regs;
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struct clk *clk;
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struct clk *gate;
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struct g2d_ctx *curr;
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struct g2d_variant *variant;
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int irq;
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wait_queue_head_t irq_queue;
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};
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struct g2d_frame {
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/* Original dimensions */
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u32 width;
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u32 height;
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/* Crop size */
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u32 c_width;
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u32 c_height;
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/* Offset */
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u32 o_width;
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u32 o_height;
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/* Image format */
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struct g2d_fmt *fmt;
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/* Variables that can calculated once and reused */
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u32 stride;
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u32 bottom;
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u32 right;
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u32 size;
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};
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struct g2d_ctx {
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struct v4l2_fh fh;
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struct g2d_dev *dev;
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struct g2d_frame in;
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struct g2d_frame out;
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struct v4l2_ctrl *ctrl_hflip;
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struct v4l2_ctrl *ctrl_vflip;
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struct v4l2_ctrl_handler ctrl_handler;
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u32 rop;
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u32 flip;
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};
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struct g2d_fmt {
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char *name;
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u32 fourcc;
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int depth;
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u32 hw;
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};
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struct g2d_variant {
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unsigned short hw_rev;
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};
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void g2d_reset(struct g2d_dev *d);
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void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
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void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
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void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
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void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
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void g2d_start(struct g2d_dev *d);
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void g2d_clear_int(struct g2d_dev *d);
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void g2d_set_rop4(struct g2d_dev *d, u32 r);
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void g2d_set_flip(struct g2d_dev *d, u32 r);
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void g2d_set_v41_stretch(struct g2d_dev *d,
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struct g2d_frame *src, struct g2d_frame *dst);
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void g2d_set_cmd(struct g2d_dev *d, u32 c);
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static inline struct g2d_variant *g2d_get_drv_data(struct platform_device *pdev)
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{
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return (struct g2d_variant *)platform_get_device_id(pdev)->driver_data;
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}
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