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 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 17 #include <bmp_layout.h> 18 #include <asm/byteorder.h> 19 #endif 20 21 extern char lcd_is_enabled; 22 extern int lcd_line_length; 23 extern struct vidinfo panel_info; 24 25 void lcd_ctrl_init(void *lcdbase); 26 void lcd_enable(void); 27 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue); 28 29 struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp, 30 void **alloc_addr); 31 int bmp_display(ulong addr, int x, int y); 32 33 /** 34 * Set whether we need to flush the dcache when changing the LCD image. This 35 * defaults to off. 36 * 37 * @param flush non-zero to flush cache after update, 0 to skip 38 */ 39 void lcd_set_flush_dcache(int flush); 40 41 #if defined CONFIG_MPC823 42 #include <mpc823_lcd.h> 43 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 44 defined CONFIG_CPU_MONAHANS 45 #include <pxa_lcd.h> 46 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD) 47 #include <atmel_lcd.h> 48 #elif defined(CONFIG_EXYNOS_FB) 49 #include <exynos_lcd.h> 50 #else 51 typedef struct vidinfo { 52 ushort vl_col; /* Number of columns (i.e. 160) */ 53 ushort vl_row; /* Number of rows (i.e. 100) */ 54 u_char vl_bpix; /* Bits per pixel, 0 = 1 */ 55 ushort *cmap; /* Pointer to the colormap */ 56 void *priv; /* Pointer to driver-specific data */ 57 } vidinfo_t; 58 59 static __maybe_unused ushort *configuration_get_cmap(void) 60 { 61 return panel_info.cmap; 62 } 63 #endif 64 65 ushort *configuration_get_cmap(void); 66 67 extern vidinfo_t panel_info; 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 /* Update the LCD / flush the cache */ 132 void lcd_sync(void); 133 134 /* 135 * Information about displays we are using. This is for configuring 136 * the LCD controller and memory allocation. Someone has to know what 137 * is connected, as we can't autodetect anything. 138 */ 139 #define CONFIG_SYS_HIGH 0 /* Pins are active high */ 140 #define CONFIG_SYS_LOW 1 /* Pins are active low */ 141 142 #define LCD_MONOCHROME 0 143 #define LCD_COLOR2 1 144 #define LCD_COLOR4 2 145 #define LCD_COLOR8 3 146 #define LCD_COLOR16 4 147 #define LCD_COLOR32 5 148 149 #if defined(CONFIG_LCD_INFO_BELOW_LOGO) 150 #define LCD_INFO_X 0 151 #define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) 152 #elif defined(CONFIG_LCD_LOGO) 153 #define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) 154 #define LCD_INFO_Y VIDEO_FONT_HEIGHT 155 #else 156 #define LCD_INFO_X VIDEO_FONT_WIDTH 157 #define LCD_INFO_Y VIDEO_FONT_HEIGHT 158 #endif 159 160 /* Default to 8bpp if bit depth not specified */ 161 #ifndef LCD_BPP 162 #define LCD_BPP LCD_COLOR8 163 #endif 164 165 #ifndef LCD_DF 166 #define LCD_DF 1 167 #endif 168 169 /* Calculate nr. of bits per pixel and nr. of colors */ 170 #define NBITS(bit_code) (1 << (bit_code)) 171 #define NCOLORS(bit_code) (1 << NBITS(bit_code)) 172 173 #if LCD_BPP == LCD_COLOR8 174 # define CONSOLE_COLOR_BLACK 0 175 # define CONSOLE_COLOR_RED 1 176 # define CONSOLE_COLOR_GREEN 2 177 # define CONSOLE_COLOR_YELLOW 3 178 # define CONSOLE_COLOR_BLUE 4 179 # define CONSOLE_COLOR_MAGENTA 5 180 # define CONSOLE_COLOR_CYAN 6 181 # define CONSOLE_COLOR_GREY 14 182 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ 183 #elif LCD_BPP == LCD_COLOR32 184 #define CONSOLE_COLOR_RED 0x00ff0000 185 #define CONSOLE_COLOR_GREEN 0x0000ff00 186 #define CONSOLE_COLOR_YELLOW 0x00ffff00 187 #define CONSOLE_COLOR_BLUE 0x000000ff 188 #define CONSOLE_COLOR_MAGENTA 0x00ff00ff 189 #define CONSOLE_COLOR_CYAN 0x0000ffff 190 #define CONSOLE_COLOR_GREY 0x00aaaaaa 191 #define CONSOLE_COLOR_BLACK 0x00000000 192 #define CONSOLE_COLOR_WHITE 0x00ffffff /* Must remain last / highest */ 193 #define NBYTES(bit_code) (NBITS(bit_code) >> 3) 194 #else /* 16bpp color definitions */ 195 #define CONSOLE_COLOR_BLACK 0x0000 196 #define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ 197 #endif /* color definitions */ 198 199 #ifndef PAGE_SIZE 200 #define PAGE_SIZE 4096 201 #endif 202 203 #endif /* _LCD_H_ */ 204