text: /*
   * Samsung S5P G2D - 2D Graphics Accelerator Driver
   *
   * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   * Kamil Debski, <k.debski@samsung.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by the
   * Free Software Foundation; either version 2 of the
   * License, or (at your option) any later version
   */
  
  /* General Registers */
  #define SOFT_RESET_REG		0x0000	/* Software reset reg */
  #define INTEN_REG		0x0004	/* Interrupt Enable reg */
  #define INTC_PEND_REG		0x000C	/* Interrupt Control Pending reg */
  #define FIFO_STAT_REG		0x0010	/* Command FIFO Status reg */
  #define AXI_ID_MODE_REG		0x0014	/* AXI Read ID Mode reg */
  #define CACHECTL_REG		0x0018	/* Cache & Buffer clear reg */
  #define AXI_MODE_REG		0x001C	/* AXI Mode reg */
  
  /* Command Registers */
  #define BITBLT_START_REG	0x0100	/* BitBLT Start reg */
  #define BITBLT_COMMAND_REG	0x0104	/* Command reg for BitBLT */
  
  /* Parameter Setting Registers (Rotate & Direction) */
  #define ROTATE_REG		0x0200	/* Rotation reg */
  #define SRC_MSK_DIRECT_REG	0x0204	/* Src and Mask Direction reg */
  #define DST_PAT_DIRECT_REG	0x0208	/* Dest and Pattern Direction reg */
  
  /* Parameter Setting Registers (Src) */
  #define SRC_SELECT_REG		0x0300	/* Src Image Selection reg */
  #define SRC_BASE_ADDR_REG	0x0304	/* Src Image Base Address reg */
  #define SRC_STRIDE_REG		0x0308	/* Src Stride reg */
  #define SRC_COLOR_MODE_REG	0x030C	/* Src Image Color Mode reg */
  #define SRC_LEFT_TOP_REG	0x0310	/* Src Left Top Coordinate reg */
  #define SRC_RIGHT_BOTTOM_REG	0x0314	/* Src Right Bottom Coordinate reg */
  #define SRC_SCALE_CTRL_REG	0x0328	/* Src Scaling type select */
  #define SRC_XSCALE_REG		0x032c	/* Src X Scaling ratio */
  #define SRC_YSCALE_REG		0x0330	/* Src Y Scaling ratio */
  
  /* Parameter Setting Registers (Dest) */
  #define DST_SELECT_REG		0x0400	/* Dest Image Selection reg */
  #define DST_BASE_ADDR_REG	0x0404	/* Dest Image Base Address reg */
  #define DST_STRIDE_REG		0x0408	/* Dest Stride reg */
  #define DST_COLOR_MODE_REG	0x040C	/* Dest Image Color Mode reg */
  #define DST_LEFT_TOP_REG	0x0410	/* Dest Left Top Coordinate reg */
  #define DST_RIGHT_BOTTOM_REG	0x0414	/* Dest Right Bottom Coordinate reg */
  
  /* Parameter Setting Registers (Pattern) */
  #define PAT_BASE_ADDR_REG	0x0500	/* Pattern Image Base Address reg */
  #define PAT_SIZE_REG		0x0504	/* Pattern Image Size reg */
  #define PAT_COLOR_MODE_REG	0x0508	/* Pattern Image Color Mode reg */
  #define PAT_OFFSET_REG		0x050C	/* Pattern Left Top Coordinate reg */
  #define PAT_STRIDE_REG		0x0510	/* Pattern Stride reg */
  
  /* Parameter Setting Registers (Mask) */
  #define MASK_BASE_ADDR_REG	0x0520	/* Mask Base Address reg */
  #define MASK_STRIDE_REG		0x0524	/* Mask Stride reg */
  
  /* Parameter Setting Registers (Clipping Window) */
  #define CW_LT_REG		0x0600	/* LeftTop coordinates of Clip Window */
  #define CW_RB_REG		0x0604	/* RightBottom coordinates of Clip
  								Window */
  
  /* Parameter Setting Registers (ROP & Alpha Setting) */
  #define THIRD_OPERAND_REG	0x0610	/* Third Operand Selection reg */
  #define ROP4_REG		0x0614	/* Raster Operation reg */
  #define ALPHA_REG		0x0618	/* Alpha value, Fading offset value */
  
  /* Parameter Setting Registers (Color) */
  #define FG_COLOR_REG		0x0700	/* Foreground Color reg */
  #define BG_COLOR_REG		0x0704	/* Background Color reg */
  #define BS_COLOR_REG		0x0708	/* Blue Screen Color reg */
  
  /* Parameter Setting Registers (Color Key) */
  #define SRC_COLORKEY_CTRL_REG	0x0710	/* Src Colorkey control reg */
  #define SRC_COLORKEY_DR_MIN_REG	0x0714	/* Src Colorkey Decision Reference
  								Min reg */
  #define SRC_COLORKEY_DR_MAX_REG	0x0718	/* Src Colorkey Decision Reference
  								Max reg */
  #define DST_COLORKEY_CTRL_REG	0x071C	/* Dest Colorkey control reg */
  #define DST_COLORKEY_DR_MIN_REG	0x0720	/* Dest Colorkey Decision Reference
  								Min reg */
  #define DST_COLORKEY_DR_MAX_REG	0x0724	/* Dest Colorkey Decision Reference
  								Max reg */
  
  /* Color mode values */
  
  #define ORDER_XRGB		0
  #define ORDER_RGBX		1
  #define ORDER_XBGR		2
  #define ORDER_BGRX		3
  
  #define MODE_XRGB_8888		0
  #define MODE_ARGB_8888		1
  #define MODE_RGB_565		2
  #define MODE_XRGB_1555		3
  #define MODE_ARGB_1555		4
  #define MODE_XRGB_4444		5
  #define MODE_ARGB_4444		6
  #define MODE_PACKED_RGB_888	7
  
  #define COLOR_MODE(o, m)	(((o) << 4) | (m))
  
  /* ROP4 operation values */
  #define ROP4_COPY		0xCCCC
  #define ROP4_INVERT		0x3333
  
  /* Hardware limits */
  #define MAX_WIDTH		8000
  #define MAX_HEIGHT		8000
  
  #define G2D_TIMEOUT		500
  
  #define DEFAULT_WIDTH		100
  #define DEFAULT_HEIGHT		100
  
  #define DEFAULT_SCALE_MODE	(2 << 0)
  
  /* Command mode register values */
  #define CMD_V3_ENABLE_STRETCH	(1 << 4)
  