1/* 2 * Samsung S5P G2D - 2D Graphics Accelerator Driver 3 * 4 * Copyright (c) 2011 Samsung Electronics Co., Ltd. 5 * Kamil Debski, <k.debski@samsung.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the 10 * License, or (at your option) any later version 11 */ 12 13#include <media/v4l2-device.h> 14#include <media/v4l2-ctrls.h> 15 16#define G2D_NAME "s5p-g2d" 17 18struct g2d_dev { 19 struct v4l2_device v4l2_dev; 20 struct v4l2_m2m_dev *m2m_dev; 21 struct video_device *vfd; 22 struct mutex mutex; 23 spinlock_t ctrl_lock; 24 atomic_t num_inst; 25 struct vb2_alloc_ctx *alloc_ctx; 26 struct resource *res_regs; 27 void __iomem *regs; 28 struct clk *clk; 29 struct clk *gate; 30 struct g2d_ctx *curr; 31 int irq; 32 wait_queue_head_t irq_queue; 33}; 34 35struct g2d_frame { 36 /* Original dimensions */ 37 u32 width; 38 u32 height; 39 /* Crop size */ 40 u32 c_width; 41 u32 c_height; 42 /* Offset */ 43 u32 o_width; 44 u32 o_height; 45 /* Image format */ 46 struct g2d_fmt *fmt; 47 /* Variables that can calculated once and reused */ 48 u32 stride; 49 u32 bottom; 50 u32 right; 51 u32 size; 52}; 53 54struct g2d_ctx { 55 struct v4l2_fh fh; 56 struct g2d_dev *dev; 57 struct v4l2_m2m_ctx *m2m_ctx; 58 struct g2d_frame in; 59 struct g2d_frame out; 60 struct v4l2_ctrl *ctrl_hflip; 61 struct v4l2_ctrl *ctrl_vflip; 62 struct v4l2_ctrl_handler ctrl_handler; 63 u32 rop; 64 u32 flip; 65}; 66 67struct g2d_fmt { 68 char *name; 69 u32 fourcc; 70 int depth; 71 u32 hw; 72}; 73 74 75void g2d_reset(struct g2d_dev *d); 76void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f); 77void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a); 78void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f); 79void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a); 80void g2d_start(struct g2d_dev *d); 81void g2d_clear_int(struct g2d_dev *d); 82void g2d_set_rop4(struct g2d_dev *d, u32 r); 83void g2d_set_flip(struct g2d_dev *d, u32 r); 84u32 g2d_cmd_stretch(u32 e); 85void g2d_set_cmd(struct g2d_dev *d, u32 c); 86 87 88