include/lcd.h

   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_ */