1 /* 2 * MPC823 and PXA LCD Controller 3 * 4 * Modeled after video interface by Paolo Scaffardi 5 * 6 * 7 * (C) Copyright 2001 8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 9 * 10 * SPDX-License-Identifier: GPL-2.0+ 11 */ 12 13 #ifndef _LCD_H_ 14 #define _LCD_H_ 15 #include <lcd_console.h> 16 17 extern char lcd_is_enabled; 18 19 extern int lcd_line_length; 20 21 extern struct vidinfo panel_info; 22 23 void lcd_ctrl_init(void *lcdbase); 24 void lcd_enable(void); 25 26 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */ 27 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue); 28 void lcd_initcolregs(void); 29 30 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */ 31 struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp, 32 void **alloc_addr); 33 int bmp_display(ulong addr, int x, int y); 34 35 /** 36 * Set whether we need to flush the dcache when changing the LCD image. This 37 * defaults to off. 38 * 39 * @param flush non-zero to flush cache after update, 0 to skip 40 */ 41 void lcd_set_flush_dcache(int flush); 42 43 #if defined CONFIG_MPC823 44 #include <mpc823_lcd.h> 45 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 46 defined CONFIG_CPU_MONAHANS 47 #include <pxa_lcd.h> 48 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD) 49 #include <atmel_lcd.h> 50 #elif defined(CONFIG_EXYNOS_FB) 51 #include <exynos_lcd.h> 52 #else 53 typedef struct vidinfo { 54 ushort vl_col; /* Number of columns (i.e. 160) */ 55 ushort vl_row; /* Number of rows (i.e. 100) */ 56 57 u_char vl_bpix; /* Bits per pixel, 0 = 1 */ 58 59 ushort *cmap; /* Pointer to the colormap */ 60 61 void *priv; /* Pointer to driver-specific data */ 62 } vidinfo_t; 63 #endif 64 65 extern vidinfo_t panel_info; 66 67 /* Video functions */ 68 69 void lcd_putc(const char c); 70 void lcd_puts(const char *s); 71 void lcd_printf(const char *fmt, ...); 72 void lcd_clear(void); 73 int lcd_display_bitmap(ulong bmp_image, int x, int y); 74 75 /** 76 * Get the width of the LCD in pixels 77 * 78 * @return width of LCD in pixels 79 */ 80 int lcd_get_pixel_width(void); 81 82 /** 83 * Get the height of the LCD in pixels 84 * 85 * @return height of LCD in pixels 86 */ 87 int lcd_get_pixel_height(void); 88 89 /** 90 * Get the number of text lines/rows on the LCD 91 * 92 * @return number of rows 93 */ 94 int lcd_get_screen_rows(void); 95 96 /** 97 * Get the number of text columns on the LCD 98 * 99 * @return number of columns 100 */ 101 int lcd_get_screen_columns(void); 102 103 /** 104 * Get the background color of the LCD 105 * 106 * @return background color value 107 */ 108 int lcd_getbgcolor(void); 109 110 /** 111 * Get the foreground color of the LCD 112 * 113 * @return foreground color value 114 */ 115 int lcd_getfgcolor(void); 116 117 /** 118 * Set the position of the text cursor 119 * 120 * @param col Column to place cursor (0 = left side) 121 * @param row Row to place cursor (0 = top line) 122 */ 123 void lcd_position_cursor(unsigned col, unsigned row); 124 125 /* Allow boards to customize the information displayed */ 126 void lcd_show_board_info(void); 127 128 /* Return the size of the LCD frame buffer, and the line length */ 129 int lcd_get_size(int *line_length); 130 131 int lcd_dt_simplefb_add_node(void *blob); 132 int lcd_dt_simplefb_enable_existing_node(void *blob); 133 134 /* Update the LCD / flush the cache */ 135 void lcd_sync(void); 136 137 /************************************************************************/ 138 /* ** BITMAP DISPLAY SUPPORT */ 139 /************************************************************************/ 140 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 141 # include <bmp_layout.h> 142 # include <asm/byteorder.h> 143 #endif 144 145 /* 146 * Information about displays we are using. This is for configuring 147 * the LCD controller and memory allocation. Someone has to know what 148 * is connected, as we can't autodetect anything. 149 */ 150 #define CONFIG_SYS_HIGH 0 /* Pins are active high */ 151 #define CONFIG_SYS_LOW 1 /* Pins are active low */ 152 153 #define LCD_MONOCHROME 0 154 #define LCD_COLOR2 1 155 #define LCD_COLOR4 2 156 #define LCD_COLOR8 3 157 #define LCD_COLOR16 4 158 #define LCD_COLOR32 5 159 /*----------------------------------------------------------------------*/ 160 #if defined(CONFIG_LCD_INFO_BELOW_LOGO) 161 # define LCD_INFO_X 0 162 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) 163 #elif defined(CONFIG_LCD_LOGO) 164 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) 165 # define LCD_INFO_Y VIDEO_FONT_HEIGHT 166 #else 167 # define LCD_INFO_X VIDEO_FONT_WIDTH 168 # define LCD_INFO_Y VIDEO_FONT_HEIGHT 169 #endif 170 171 /* Default to 8bpp if bit depth not specified */ 172 #ifndef LCD_BPP 173 # define LCD_BPP LCD_COLOR8 174 #endif 175 #ifndef LCD_DF 176 # define LCD_DF 1 177 #endif 178 179 /* Calculate nr. of bits per pixel and nr. of colors */ 180 #define NBITS(bit_code) (1 << (bit_code)) 181 #define NCOLORS(bit_code) (1 << NBITS(bit_code)) 182 183 /************************************************************************/ 184 /* ** CONSOLE CONSTANTS */ 185 /************************************************************************/ 186 #if LCD_BPP == LCD_COLOR8 187 188 /* 189 * 8bpp color definitions 190 */ 191 # define CONSOLE_COLOR_BLACK 0 192 # define CONSOLE_COLOR_RED 1 193 # define CONSOLE_COLOR_GREEN 2 194 # define CONSOLE_COLOR_YELLOW 3 195 # define CONSOLE_COLOR_BLUE 4 196 # define CONSOLE_COLOR_MAGENTA 5 197 # define CONSOLE_COLOR_CYAN 6 198 # define CONSOLE_COLOR_GREY 14 199 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ 200 201 #elif LCD_BPP == LCD_COLOR32 202 /* 203 * 32bpp color definitions 204 */ 205 # define CONSOLE_COLOR_RED 0x00ff0000 206 # define CONSOLE_COLOR_GREEN 0x0000ff00 207 # define CONSOLE_COLOR_YELLOW 0x00ffff00 208 # define CONSOLE_COLOR_BLUE 0x000000ff 209 # define CONSOLE_COLOR_MAGENTA 0x00ff00ff 210 # define CONSOLE_COLOR_CYAN 0x0000ffff 211 # define CONSOLE_COLOR_GREY 0x00aaaaaa 212 # define CONSOLE_COLOR_BLACK 0x00000000 213 # define CONSOLE_COLOR_WHITE 0x00ffffff /* Must remain last / highest*/ 214 # define NBYTES(bit_code) (NBITS(bit_code) >> 3) 215 216 #else 217 218 /* 219 * 16bpp color definitions 220 */ 221 # define CONSOLE_COLOR_BLACK 0x0000 222 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ 223 224 #endif /* color definitions */ 225 226 /************************************************************************/ 227 #ifndef PAGE_SIZE 228 # define PAGE_SIZE 4096 229 #endif 230 231 /************************************************************************/ 232 233 #endif /* _LCD_H_ */ 234