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 extern struct vidinfo panel_info; 47 48 extern void lcd_ctrl_init (void *lcdbase); 49 extern void lcd_enable (void); 50 51 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */ 52 extern void lcd_setcolreg (ushort regno, 53 ushort red, ushort green, ushort blue); 54 extern void lcd_initcolregs (void); 55 56 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */ 57 extern struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp); 58 extern int bmp_display(ulong addr, int x, int y); 59 60 #if defined CONFIG_MPC823 61 /* 62 * LCD controller stucture for MPC823 CPU 63 */ 64 typedef struct vidinfo { 65 ushort vl_col; /* Number of columns (i.e. 640) */ 66 ushort vl_row; /* Number of rows (i.e. 480) */ 67 ushort vl_width; /* Width of display area in millimeters */ 68 ushort vl_height; /* Height of display area in millimeters */ 69 70 /* LCD configuration register */ 71 u_char vl_clkp; /* Clock polarity */ 72 u_char vl_oep; /* Output Enable polarity */ 73 u_char vl_hsp; /* Horizontal Sync polarity */ 74 u_char vl_vsp; /* Vertical Sync polarity */ 75 u_char vl_dp; /* Data polarity */ 76 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */ 77 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ 78 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ 79 u_char vl_clor; /* Color, 0 = mono, 1 = color */ 80 u_char vl_tft; /* 0 = passive, 1 = TFT */ 81 82 /* Horizontal control register. Timing from data sheet */ 83 ushort vl_wbl; /* Wait between lines */ 84 85 /* Vertical control register */ 86 u_char vl_vpw; /* Vertical sync pulse width */ 87 u_char vl_lcdac; /* LCD AC timing */ 88 u_char vl_wbf; /* Wait between frames */ 89 } vidinfo_t; 90 91 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 92 defined CONFIG_CPU_MONAHANS 93 /* 94 * PXA LCD DMA descriptor 95 */ 96 struct pxafb_dma_descriptor { 97 u_long fdadr; /* Frame descriptor address register */ 98 u_long fsadr; /* Frame source address register */ 99 u_long fidr; /* Frame ID register */ 100 u_long ldcmd; /* Command register */ 101 }; 102 103 /* 104 * PXA LCD info 105 */ 106 struct pxafb_info { 107 108 /* Misc registers */ 109 u_long reg_lccr3; 110 u_long reg_lccr2; 111 u_long reg_lccr1; 112 u_long reg_lccr0; 113 u_long fdadr0; 114 u_long fdadr1; 115 116 /* DMA descriptors */ 117 struct pxafb_dma_descriptor * dmadesc_fblow; 118 struct pxafb_dma_descriptor * dmadesc_fbhigh; 119 struct pxafb_dma_descriptor * dmadesc_palette; 120 121 u_long screen; /* physical address of frame buffer */ 122 u_long palette; /* physical address of palette memory */ 123 u_int palette_size; 124 }; 125 126 /* 127 * LCD controller stucture for PXA CPU 128 */ 129 typedef struct vidinfo { 130 ushort vl_col; /* Number of columns (i.e. 640) */ 131 ushort vl_row; /* Number of rows (i.e. 480) */ 132 ushort vl_width; /* Width of display area in millimeters */ 133 ushort vl_height; /* Height of display area in millimeters */ 134 135 /* LCD configuration register */ 136 u_char vl_clkp; /* Clock polarity */ 137 u_char vl_oep; /* Output Enable polarity */ 138 u_char vl_hsp; /* Horizontal Sync polarity */ 139 u_char vl_vsp; /* Vertical Sync polarity */ 140 u_char vl_dp; /* Data polarity */ 141 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ 142 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ 143 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ 144 u_char vl_clor; /* Color, 0 = mono, 1 = color */ 145 u_char vl_tft; /* 0 = passive, 1 = TFT */ 146 147 /* Horizontal control register. Timing from data sheet */ 148 ushort vl_hpw; /* Horz sync pulse width */ 149 u_char vl_blw; /* Wait before of line */ 150 u_char vl_elw; /* Wait end of line */ 151 152 /* Vertical control register. */ 153 u_char vl_vpw; /* Vertical sync pulse width */ 154 u_char vl_bfw; /* Wait before of frame */ 155 u_char vl_efw; /* Wait end of frame */ 156 157 /* PXA LCD controller params */ 158 struct pxafb_info pxa; 159 } vidinfo_t; 160 161 #elif defined(CONFIG_ATMEL_LCD) 162 163 typedef struct vidinfo { 164 ushort vl_col; /* Number of columns (i.e. 640) */ 165 ushort vl_row; /* Number of rows (i.e. 480) */ 166 u_long vl_clk; /* pixel clock in ps */ 167 168 /* LCD configuration register */ 169 u_long vl_sync; /* Horizontal / vertical sync */ 170 u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ 171 u_long vl_tft; /* 0 = passive, 1 = TFT */ 172 u_long vl_cont_pol_low; /* contrast polarity is low */ 173 174 /* Horizontal control register. */ 175 u_long vl_hsync_len; /* Length of horizontal sync */ 176 u_long vl_left_margin; /* Time from sync to picture */ 177 u_long vl_right_margin; /* Time from picture to sync */ 178 179 /* Vertical control register. */ 180 u_long vl_vsync_len; /* Length of vertical sync */ 181 u_long vl_upper_margin; /* Time from sync to picture */ 182 u_long vl_lower_margin; /* Time from picture to sync */ 183 184 u_long mmio; /* Memory mapped registers */ 185 } vidinfo_t; 186 187 #elif defined(CONFIG_EXYNOS_FB) 188 189 enum { 190 FIMD_RGB_INTERFACE = 1, 191 FIMD_CPU_INTERFACE = 2, 192 }; 193 194 typedef struct vidinfo { 195 ushort vl_col; /* Number of columns (i.e. 640) */ 196 ushort vl_row; /* Number of rows (i.e. 480) */ 197 ushort vl_width; /* Width of display area in millimeters */ 198 ushort vl_height; /* Height of display area in millimeters */ 199 200 /* LCD configuration register */ 201 u_char vl_freq; /* Frequency */ 202 u_char vl_clkp; /* Clock polarity */ 203 u_char vl_oep; /* Output Enable polarity */ 204 u_char vl_hsp; /* Horizontal Sync polarity */ 205 u_char vl_vsp; /* Vertical Sync polarity */ 206 u_char vl_dp; /* Data polarity */ 207 u_char vl_bpix; /* Bits per pixel */ 208 209 /* Horizontal control register. Timing from data sheet */ 210 u_char vl_hspw; /* Horz sync pulse width */ 211 u_char vl_hfpd; /* Wait before of line */ 212 u_char vl_hbpd; /* Wait end of line */ 213 214 /* Vertical control register. */ 215 u_char vl_vspw; /* Vertical sync pulse width */ 216 u_char vl_vfpd; /* Wait before of frame */ 217 u_char vl_vbpd; /* Wait end of frame */ 218 u_char vl_cmd_allow_len; /* Wait end of frame */ 219 220 void (*cfg_gpio)(void); 221 void (*backlight_on)(unsigned int onoff); 222 void (*reset_lcd)(void); 223 void (*lcd_power_on)(void); 224 void (*cfg_ldo)(void); 225 void (*enable_ldo)(unsigned int onoff); 226 void (*mipi_power)(void); 227 void (*backlight_reset)(void); 228 229 unsigned int win_id; 230 unsigned int init_delay; 231 unsigned int power_on_delay; 232 unsigned int reset_delay; 233 unsigned int interface_mode; 234 unsigned int mipi_enabled; 235 unsigned int cs_setup; 236 unsigned int wr_setup; 237 unsigned int wr_act; 238 unsigned int wr_hold; 239 240 /* parent clock name(MPLL, EPLL or VPLL) */ 241 unsigned int pclk_name; 242 /* ratio value for source clock from parent clock. */ 243 unsigned int sclk_div; 244 245 unsigned int dual_lcd_enabled; 246 247 } vidinfo_t; 248 249 void init_panel_info(vidinfo_t *vid); 250 251 #else 252 253 typedef struct vidinfo { 254 ushort vl_col; /* Number of columns (i.e. 160) */ 255 ushort vl_row; /* Number of rows (i.e. 100) */ 256 257 u_char vl_bpix; /* Bits per pixel, 0 = 1 */ 258 259 ushort *cmap; /* Pointer to the colormap */ 260 261 void *priv; /* Pointer to driver-specific data */ 262 } vidinfo_t; 263 264 #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_MCC200, CONFIG_ATMEL_LCD */ 265 266 extern vidinfo_t panel_info; 267 268 /* Video functions */ 269 270 #if defined(CONFIG_RBC823) 271 void lcd_disable (void); 272 #endif 273 274 275 /* int lcd_init (void *lcdbase); */ 276 void lcd_putc (const char c); 277 void lcd_puts (const char *s); 278 void lcd_printf (const char *fmt, ...); 279 void lcd_clear(void); 280 int lcd_display_bitmap(ulong bmp_image, int x, int y); 281 282 /* Allow boards to customize the information displayed */ 283 void lcd_show_board_info(void); 284 285 /************************************************************************/ 286 /* ** BITMAP DISPLAY SUPPORT */ 287 /************************************************************************/ 288 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 289 # include <bmp_layout.h> 290 # include <asm/byteorder.h> 291 #endif 292 293 /* 294 * Information about displays we are using. This is for configuring 295 * the LCD controller and memory allocation. Someone has to know what 296 * is connected, as we can't autodetect anything. 297 */ 298 #define CONFIG_SYS_HIGH 0 /* Pins are active high */ 299 #define CONFIG_SYS_LOW 1 /* Pins are active low */ 300 301 #define LCD_MONOCHROME 0 302 #define LCD_COLOR2 1 303 #define LCD_COLOR4 2 304 #define LCD_COLOR8 3 305 #define LCD_COLOR16 4 306 307 /*----------------------------------------------------------------------*/ 308 #if defined(CONFIG_LCD_INFO_BELOW_LOGO) 309 # define LCD_INFO_X 0 310 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) 311 #elif defined(CONFIG_LCD_LOGO) 312 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) 313 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 314 #else 315 # define LCD_INFO_X (VIDEO_FONT_WIDTH) 316 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 317 #endif 318 319 /* Default to 8bpp if bit depth not specified */ 320 #ifndef LCD_BPP 321 # define LCD_BPP LCD_COLOR8 322 #endif 323 #ifndef LCD_DF 324 # define LCD_DF 1 325 #endif 326 327 /* Calculate nr. of bits per pixel and nr. of colors */ 328 #define NBITS(bit_code) (1 << (bit_code)) 329 #define NCOLORS(bit_code) (1 << NBITS(bit_code)) 330 331 /************************************************************************/ 332 /* ** CONSOLE CONSTANTS */ 333 /************************************************************************/ 334 #if LCD_BPP == LCD_MONOCHROME 335 336 /* 337 * Simple black/white definitions 338 */ 339 # define CONSOLE_COLOR_BLACK 0 340 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */ 341 342 #elif LCD_BPP == LCD_COLOR8 343 344 /* 345 * 8bpp color definitions 346 */ 347 # define CONSOLE_COLOR_BLACK 0 348 # define CONSOLE_COLOR_RED 1 349 # define CONSOLE_COLOR_GREEN 2 350 # define CONSOLE_COLOR_YELLOW 3 351 # define CONSOLE_COLOR_BLUE 4 352 # define CONSOLE_COLOR_MAGENTA 5 353 # define CONSOLE_COLOR_CYAN 6 354 # define CONSOLE_COLOR_GREY 14 355 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ 356 357 #else 358 359 /* 360 * 16bpp color definitions 361 */ 362 # define CONSOLE_COLOR_BLACK 0x0000 363 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ 364 365 #endif /* color definitions */ 366 367 /************************************************************************/ 368 #ifndef PAGE_SIZE 369 # define PAGE_SIZE 4096 370 #endif 371 372 /************************************************************************/ 373 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 374 /************************************************************************/ 375 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 376 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 377 / VIDEO_FONT_HEIGHT) 378 #else 379 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 380 #endif 381 382 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 383 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 384 #define CONSOLE_ROW_FIRST (lcd_console_address) 385 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 386 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 387 - CONSOLE_ROW_SIZE) 388 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 389 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 390 391 #if LCD_BPP == LCD_MONOCHROME 392 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 393 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 394 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 395 # define COLOR_MASK(c) (c) 396 #else 397 # error Unsupported LCD BPP. 398 #endif 399 400 /************************************************************************/ 401 402 #endif /* _LCD_H_ */ 403