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
  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_ */