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 * See file CREDITS for list of people who contributed to this 11 * project. 12 * 13 * This program is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU General Public License as 15 * published by the Free Software Foundation; either version 2 of 16 * the License, or (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, write to the Free Software 25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 26 * MA 02111-1307 USA 27 */ 28 29 #ifndef _LCD_H_ 30 #define _LCD_H_ 31 32 extern char lcd_is_enabled; 33 34 extern int lcd_line_length; 35 extern int lcd_color_fg; 36 extern int lcd_color_bg; 37 38 /* 39 * Frame buffer memory information 40 */ 41 extern void *lcd_base; /* Start of framebuffer memory */ 42 extern void *lcd_console_address; /* Start of console buffer */ 43 44 extern short console_col; 45 extern short console_row; 46 47 #if defined CONFIG_MPC823 48 /* 49 * LCD controller stucture for MPC823 CPU 50 */ 51 typedef struct vidinfo { 52 ushort vl_col; /* Number of columns (i.e. 640) */ 53 ushort vl_row; /* Number of rows (i.e. 480) */ 54 ushort vl_width; /* Width of display area in millimeters */ 55 ushort vl_height; /* Height of display area in millimeters */ 56 57 /* LCD configuration register */ 58 u_char vl_clkp; /* Clock polarity */ 59 u_char vl_oep; /* Output Enable polarity */ 60 u_char vl_hsp; /* Horizontal Sync polarity */ 61 u_char vl_vsp; /* Vertical Sync polarity */ 62 u_char vl_dp; /* Data polarity */ 63 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */ 64 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ 65 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ 66 u_char vl_clor; /* Color, 0 = mono, 1 = color */ 67 u_char vl_tft; /* 0 = passive, 1 = TFT */ 68 69 /* Horizontal control register. Timing from data sheet */ 70 ushort vl_wbl; /* Wait between lines */ 71 72 /* Vertical control register */ 73 u_char vl_vpw; /* Vertical sync pulse width */ 74 u_char vl_lcdac; /* LCD AC timing */ 75 u_char vl_wbf; /* Wait between frames */ 76 } vidinfo_t; 77 78 extern vidinfo_t panel_info; 79 80 #elif defined CONFIG_PXA250 81 /* 82 * PXA LCD DMA descriptor 83 */ 84 struct pxafb_dma_descriptor { 85 u_long fdadr; /* Frame descriptor address register */ 86 u_long fsadr; /* Frame source address register */ 87 u_long fidr; /* Frame ID register */ 88 u_long ldcmd; /* Command register */ 89 }; 90 91 /* 92 * PXA LCD info 93 */ 94 struct pxafb_info { 95 96 /* Misc registers */ 97 u_long reg_lccr3; 98 u_long reg_lccr2; 99 u_long reg_lccr1; 100 u_long reg_lccr0; 101 u_long fdadr0; 102 u_long fdadr1; 103 104 /* DMA descriptors */ 105 struct pxafb_dma_descriptor * dmadesc_fblow; 106 struct pxafb_dma_descriptor * dmadesc_fbhigh; 107 struct pxafb_dma_descriptor * dmadesc_palette; 108 109 u_long screen; /* physical address of frame buffer */ 110 u_long palette; /* physical address of palette memory */ 111 u_int palette_size; 112 }; 113 114 /* 115 * LCD controller stucture for PXA CPU 116 */ 117 typedef struct vidinfo { 118 ushort vl_col; /* Number of columns (i.e. 640) */ 119 ushort vl_row; /* Number of rows (i.e. 480) */ 120 ushort vl_width; /* Width of display area in millimeters */ 121 ushort vl_height; /* Height of display area in millimeters */ 122 123 /* LCD configuration register */ 124 u_char vl_clkp; /* Clock polarity */ 125 u_char vl_oep; /* Output Enable polarity */ 126 u_char vl_hsp; /* Horizontal Sync polarity */ 127 u_char vl_vsp; /* Vertical Sync polarity */ 128 u_char vl_dp; /* Data polarity */ 129 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ 130 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ 131 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ 132 u_char vl_clor; /* Color, 0 = mono, 1 = color */ 133 u_char vl_tft; /* 0 = passive, 1 = TFT */ 134 135 /* Horizontal control register. Timing from data sheet */ 136 ushort vl_hpw; /* Horz sync pulse width */ 137 u_char vl_blw; /* Wait before of line */ 138 u_char vl_elw; /* Wait end of line */ 139 140 /* Vertical control register. */ 141 u_char vl_vpw; /* Vertical sync pulse width */ 142 u_char vl_bfw; /* Wait before of frame */ 143 u_char vl_efw; /* Wait end of frame */ 144 145 /* PXA LCD controller params */ 146 struct pxafb_info pxa; 147 } vidinfo_t; 148 149 extern vidinfo_t panel_info; 150 151 #elif defined(CONFIG_ATMEL_LCD) 152 153 typedef struct vidinfo { 154 u_long vl_col; /* Number of columns (i.e. 640) */ 155 u_long vl_row; /* Number of rows (i.e. 480) */ 156 u_long vl_clk; /* pixel clock in ps */ 157 158 /* LCD configuration register */ 159 u_long vl_sync; /* Horizontal / vertical sync */ 160 u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ 161 u_long vl_tft; /* 0 = passive, 1 = TFT */ 162 163 /* Horizontal control register. */ 164 u_long vl_hsync_len; /* Length of horizontal sync */ 165 u_long vl_left_margin; /* Time from sync to picture */ 166 u_long vl_right_margin; /* Time from picture to sync */ 167 168 /* Vertical control register. */ 169 u_long vl_vsync_len; /* Length of vertical sync */ 170 u_long vl_upper_margin; /* Time from sync to picture */ 171 u_long vl_lower_margin; /* Time from picture to sync */ 172 173 u_long mmio; /* Memory mapped registers */ 174 } vidinfo_t; 175 176 extern vidinfo_t panel_info; 177 178 #else 179 180 typedef struct vidinfo { 181 ushort vl_col; /* Number of columns (i.e. 160) */ 182 ushort vl_row; /* Number of rows (i.e. 100) */ 183 184 u_char vl_bpix; /* Bits per pixel, 0 = 1 */ 185 186 ushort *cmap; /* Pointer to the colormap */ 187 188 void *priv; /* Pointer to driver-specific data */ 189 } vidinfo_t; 190 191 #endif /* CONFIG_MPC823, CONFIG_PXA250 or CONFIG_MCC200 or CONFIG_ATMEL_LCD */ 192 193 /* Video functions */ 194 195 #if defined(CONFIG_RBC823) 196 void lcd_disable (void); 197 #endif 198 199 200 /* int lcd_init (void *lcdbase); */ 201 void lcd_putc (const char c); 202 void lcd_puts (const char *s); 203 void lcd_printf (const char *fmt, ...); 204 205 /* Allow boards to customize the information displayed */ 206 void lcd_show_board_info(void); 207 208 /************************************************************************/ 209 /* ** BITMAP DISPLAY SUPPORT */ 210 /************************************************************************/ 211 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 212 # include <bmp_layout.h> 213 # include <asm/byteorder.h> 214 #endif 215 216 /* 217 * Information about displays we are using. This is for configuring 218 * the LCD controller and memory allocation. Someone has to know what 219 * is connected, as we can't autodetect anything. 220 */ 221 #define CONFIG_SYS_HIGH 0 /* Pins are active high */ 222 #define CONFIG_SYS_LOW 1 /* Pins are active low */ 223 224 #define LCD_MONOCHROME 0 225 #define LCD_COLOR2 1 226 #define LCD_COLOR4 2 227 #define LCD_COLOR8 3 228 #define LCD_COLOR16 4 229 230 /*----------------------------------------------------------------------*/ 231 #if defined(CONFIG_LCD_INFO_BELOW_LOGO) 232 # define LCD_INFO_X 0 233 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) 234 #elif defined(CONFIG_LCD_LOGO) 235 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) 236 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 237 #else 238 # define LCD_INFO_X (VIDEO_FONT_WIDTH) 239 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 240 #endif 241 242 /* Default to 8bpp if bit depth not specified */ 243 #ifndef LCD_BPP 244 # define LCD_BPP LCD_COLOR8 245 #endif 246 #ifndef LCD_DF 247 # define LCD_DF 1 248 #endif 249 250 /* Calculate nr. of bits per pixel and nr. of colors */ 251 #define NBITS(bit_code) (1 << (bit_code)) 252 #define NCOLORS(bit_code) (1 << NBITS(bit_code)) 253 254 /************************************************************************/ 255 /* ** CONSOLE CONSTANTS */ 256 /************************************************************************/ 257 #if LCD_BPP == LCD_MONOCHROME 258 259 /* 260 * Simple black/white definitions 261 */ 262 # define CONSOLE_COLOR_BLACK 0 263 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */ 264 265 #elif LCD_BPP == LCD_COLOR8 266 267 /* 268 * 8bpp color definitions 269 */ 270 # define CONSOLE_COLOR_BLACK 0 271 # define CONSOLE_COLOR_RED 1 272 # define CONSOLE_COLOR_GREEN 2 273 # define CONSOLE_COLOR_YELLOW 3 274 # define CONSOLE_COLOR_BLUE 4 275 # define CONSOLE_COLOR_MAGENTA 5 276 # define CONSOLE_COLOR_CYAN 6 277 # define CONSOLE_COLOR_GREY 14 278 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ 279 280 #else 281 282 /* 283 * 16bpp color definitions 284 */ 285 # define CONSOLE_COLOR_BLACK 0x0000 286 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ 287 288 #endif /* color definitions */ 289 290 /************************************************************************/ 291 #ifndef PAGE_SIZE 292 # define PAGE_SIZE 4096 293 #endif 294 295 /************************************************************************/ 296 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 297 /************************************************************************/ 298 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 299 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 300 / VIDEO_FONT_HEIGHT) 301 #else 302 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 303 #endif 304 305 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 306 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 307 #define CONSOLE_ROW_FIRST (lcd_console_address) 308 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 309 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 310 - CONSOLE_ROW_SIZE) 311 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 312 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 313 314 #if LCD_BPP == LCD_MONOCHROME 315 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 316 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 317 #elif LCD_BPP == LCD_COLOR8 318 # define COLOR_MASK(c) (c) 319 #else 320 # error Unsupported LCD BPP. 321 #endif 322 323 /************************************************************************/ 324 325 #endif /* _LCD_H_ */ 326