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 <linux/platform_device.h> 14#include <media/v4l2-device.h> 15#include <media/v4l2-ctrls.h> 16 17#define G2D_NAME "s5p-g2d" 18#define TYPE_G2D_3X 3 19#define TYPE_G2D_4X 4 20 21struct g2d_dev { 22 struct v4l2_device v4l2_dev; 23 struct v4l2_m2m_dev *m2m_dev; 24 struct video_device *vfd; 25 struct mutex mutex; 26 spinlock_t ctrl_lock; 27 atomic_t num_inst; 28 struct vb2_alloc_ctx *alloc_ctx; 29 void __iomem *regs; 30 struct clk *clk; 31 struct clk *gate; 32 struct g2d_ctx *curr; 33 struct g2d_variant *variant; 34 int irq; 35 wait_queue_head_t irq_queue; 36}; 37 38struct g2d_frame { 39 /* Original dimensions */ 40 u32 width; 41 u32 height; 42 /* Crop size */ 43 u32 c_width; 44 u32 c_height; 45 /* Offset */ 46 u32 o_width; 47 u32 o_height; 48 /* Image format */ 49 struct g2d_fmt *fmt; 50 /* Variables that can calculated once and reused */ 51 u32 stride; 52 u32 bottom; 53 u32 right; 54 u32 size; 55}; 56 57struct g2d_ctx { 58 struct v4l2_fh fh; 59 struct g2d_dev *dev; 60 struct g2d_frame in; 61 struct g2d_frame out; 62 struct v4l2_ctrl *ctrl_hflip; 63 struct v4l2_ctrl *ctrl_vflip; 64 struct v4l2_ctrl_handler ctrl_handler; 65 u32 rop; 66 u32 flip; 67}; 68 69struct g2d_fmt { 70 char *name; 71 u32 fourcc; 72 int depth; 73 u32 hw; 74}; 75 76struct g2d_variant { 77 unsigned short hw_rev; 78}; 79 80void g2d_reset(struct g2d_dev *d); 81void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f); 82void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a); 83void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f); 84void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a); 85void g2d_start(struct g2d_dev *d); 86void g2d_clear_int(struct g2d_dev *d); 87void g2d_set_rop4(struct g2d_dev *d, u32 r); 88void g2d_set_flip(struct g2d_dev *d, u32 r); 89void g2d_set_v41_stretch(struct g2d_dev *d, 90 struct g2d_frame *src, struct g2d_frame *dst); 91void g2d_set_cmd(struct g2d_dev *d, u32 c); 92 93static inline struct g2d_variant *g2d_get_drv_data(struct platform_device *pdev) 94{ 95 return (struct g2d_variant *)platform_get_device_id(pdev)->driver_data; 96} 97