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 64 static __maybe_unused ushort *configuration_get_cmap(void) 65 { 66 return panel_info.cmap; 67 } 68 #endif 69 70 ushort *configuration_get_cmap(void); 71 72 extern vidinfo_t panel_info; 73 74 /* Video functions */ 75 76 void lcd_putc(const char c); 77 void lcd_puts(const char *s); 78 void lcd_printf(const char *fmt, ...); 79 void lcd_clear(void); 80 int lcd_display_bitmap(ulong bmp_image, int x, int y); 81 82 /** 83 * Get the width of the LCD in pixels 84 * 85 * @return width of LCD in pixels 86 */ 87 int lcd_get_pixel_width(void); 88 89 /** 90 * Get the height of the LCD in pixels 91 * 92 * @return height of LCD in pixels 93 */ 94 int lcd_get_pixel_height(void); 95 96 /** 97 * Get the number of text lines/rows on the LCD 98 * 99 * @return number of rows 100 */ 101 int lcd_get_screen_rows(void); 102 103 /** 104 * Get the number of text columns on the LCD 105 * 106 * @return number of columns 107 */ 108 int lcd_get_screen_columns(void); 109 110 /** 111 * Get the background color of the LCD 112 * 113 * @return background color value 114 */ 115 int lcd_getbgcolor(void); 116 117 /** 118 * Get the foreground color of the LCD 119 * 120 * @return foreground color value 121 */ 122 int lcd_getfgcolor(void); 123 124 /** 125 * Set the position of the text cursor 126 * 127 * @param col Column to place cursor (0 = left side) 128 * @param row Row to place cursor (0 = top line) 129 */ 130 void lcd_position_cursor(unsigned col, unsigned row); 131 132 /* Allow boards to customize the information displayed */ 133 void lcd_show_board_info(void); 134 135 /* Return the size of the LCD frame buffer, and the line length */ 136 int lcd_get_size(int *line_length); 137 138 int lcd_dt_simplefb_add_node(void *blob); 139 int lcd_dt_simplefb_enable_existing_node(void *blob); 140 141 /* Update the LCD / flush the cache */ 142 void lcd_sync(void); 143 144 /************************************************************************/ 145 /* ** BITMAP DISPLAY SUPPORT */ 146 /************************************************************************/ 147 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 148 # include <bmp_layout.h> 149 # include <asm/byteorder.h> 150 #endif 151 152 /* 153 * Information about displays we are using. This is for configuring 154 * the LCD controller and memory allocation. Someone has to know what 155 * is connected, as we can't autodetect anything. 156 */ 157 #define CONFIG_SYS_HIGH 0 /* Pins are active high */ 158 #define CONFIG_SYS_LOW 1 /* Pins are active low */ 159 160 #define LCD_MONOCHROME 0 161 #define LCD_COLOR2 1 162 #define LCD_COLOR4 2 163 #define LCD_COLOR8 3 164 #define LCD_COLOR16 4 165 #define LCD_COLOR32 5 166 /*----------------------------------------------------------------------*/ 167 #if defined(CONFIG_LCD_INFO_BELOW_LOGO) 168 # define LCD_INFO_X 0 169 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) 170 #elif defined(CONFIG_LCD_LOGO) 171 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) 172 # define LCD_INFO_Y VIDEO_FONT_HEIGHT 173 #else 174 # define LCD_INFO_X VIDEO_FONT_WIDTH 175 # define LCD_INFO_Y VIDEO_FONT_HEIGHT 176 #endif 177 178 /* Default to 8bpp if bit depth not specified */ 179 #ifndef LCD_BPP 180 # define LCD_BPP LCD_COLOR8 181 #endif 182 #ifndef LCD_DF 183 # define LCD_DF 1 184 #endif 185 186 /* Calculate nr. of bits per pixel and nr. of colors */ 187 #define NBITS(bit_code) (1 << (bit_code)) 188 #define NCOLORS(bit_code) (1 << NBITS(bit_code)) 189 190 /************************************************************************/ 191 /* ** CONSOLE CONSTANTS */ 192 /************************************************************************/ 193 #if LCD_BPP == LCD_COLOR8 194 195 /* 196 * 8bpp color definitions 197 */ 198 # define CONSOLE_COLOR_BLACK 0 199 # define CONSOLE_COLOR_RED 1 200 # define CONSOLE_COLOR_GREEN 2 201 # define CONSOLE_COLOR_YELLOW 3 202 # define CONSOLE_COLOR_BLUE 4 203 # define CONSOLE_COLOR_MAGENTA 5 204 # define CONSOLE_COLOR_CYAN 6 205 # define CONSOLE_COLOR_GREY 14 206 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ 207 208 #elif LCD_BPP == LCD_COLOR32 209 /* 210 * 32bpp color definitions 211 */ 212 # define CONSOLE_COLOR_RED 0x00ff0000 213 # define CONSOLE_COLOR_GREEN 0x0000ff00 214 # define CONSOLE_COLOR_YELLOW 0x00ffff00 215 # define CONSOLE_COLOR_BLUE 0x000000ff 216 # define CONSOLE_COLOR_MAGENTA 0x00ff00ff 217 # define CONSOLE_COLOR_CYAN 0x0000ffff 218 # define CONSOLE_COLOR_GREY 0x00aaaaaa 219 # define CONSOLE_COLOR_BLACK 0x00000000 220 # define CONSOLE_COLOR_WHITE 0x00ffffff /* Must remain last / highest*/ 221 # define NBYTES(bit_code) (NBITS(bit_code) >> 3) 222 223 #else 224 225 /* 226 * 16bpp color definitions 227 */ 228 # define CONSOLE_COLOR_BLACK 0x0000 229 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ 230 231 #endif /* color definitions */ 232 233 /************************************************************************/ 234 #ifndef PAGE_SIZE 235 # define PAGE_SIZE 4096 236 #endif 237 238 /************************************************************************/ 239 240 #endif /* _LCD_H_ */ 241