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 36 /* 37 * Frame buffer memory information 38 */ 39 extern void *lcd_base; /* Start of framebuffer memory */ 40 41 extern struct vidinfo panel_info; 42 43 extern void lcd_ctrl_init (void *lcdbase); 44 extern void lcd_enable (void); 45 extern int board_splash_screen_prepare(void); 46 47 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */ 48 extern void lcd_setcolreg (ushort regno, 49 ushort red, ushort green, ushort blue); 50 extern void lcd_initcolregs (void); 51 52 extern int lcd_getfgcolor(void); 53 54 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */ 55 extern struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp); 56 extern int bmp_display(ulong addr, int x, int y); 57 58 /** 59 * Set whether we need to flush the dcache when changing the LCD image. This 60 * defaults to off. 61 * 62 * @param flush non-zero to flush cache after update, 0 to skip 63 */ 64 void lcd_set_flush_dcache(int flush); 65 66 #if defined CONFIG_MPC823 67 /* 68 * LCD controller stucture for MPC823 CPU 69 */ 70 typedef struct vidinfo { 71 ushort vl_col; /* Number of columns (i.e. 640) */ 72 ushort vl_row; /* Number of rows (i.e. 480) */ 73 ushort vl_width; /* Width of display area in millimeters */ 74 ushort vl_height; /* Height of display area in millimeters */ 75 76 /* LCD configuration register */ 77 u_char vl_clkp; /* Clock polarity */ 78 u_char vl_oep; /* Output Enable polarity */ 79 u_char vl_hsp; /* Horizontal Sync polarity */ 80 u_char vl_vsp; /* Vertical Sync polarity */ 81 u_char vl_dp; /* Data polarity */ 82 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */ 83 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ 84 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ 85 u_char vl_clor; /* Color, 0 = mono, 1 = color */ 86 u_char vl_tft; /* 0 = passive, 1 = TFT */ 87 88 /* Horizontal control register. Timing from data sheet */ 89 ushort vl_wbl; /* Wait between lines */ 90 91 /* Vertical control register */ 92 u_char vl_vpw; /* Vertical sync pulse width */ 93 u_char vl_lcdac; /* LCD AC timing */ 94 u_char vl_wbf; /* Wait between frames */ 95 } vidinfo_t; 96 97 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 98 defined CONFIG_CPU_MONAHANS 99 /* 100 * PXA LCD DMA descriptor 101 */ 102 struct pxafb_dma_descriptor { 103 u_long fdadr; /* Frame descriptor address register */ 104 u_long fsadr; /* Frame source address register */ 105 u_long fidr; /* Frame ID register */ 106 u_long ldcmd; /* Command register */ 107 }; 108 109 /* 110 * PXA LCD info 111 */ 112 struct pxafb_info { 113 114 /* Misc registers */ 115 u_long reg_lccr3; 116 u_long reg_lccr2; 117 u_long reg_lccr1; 118 u_long reg_lccr0; 119 u_long fdadr0; 120 u_long fdadr1; 121 122 /* DMA descriptors */ 123 struct pxafb_dma_descriptor * dmadesc_fblow; 124 struct pxafb_dma_descriptor * dmadesc_fbhigh; 125 struct pxafb_dma_descriptor * dmadesc_palette; 126 127 u_long screen; /* physical address of frame buffer */ 128 u_long palette; /* physical address of palette memory */ 129 u_int palette_size; 130 }; 131 132 /* 133 * LCD controller stucture for PXA CPU 134 */ 135 typedef struct vidinfo { 136 ushort vl_col; /* Number of columns (i.e. 640) */ 137 ushort vl_row; /* Number of rows (i.e. 480) */ 138 ushort vl_width; /* Width of display area in millimeters */ 139 ushort vl_height; /* Height of display area in millimeters */ 140 141 /* LCD configuration register */ 142 u_char vl_clkp; /* Clock polarity */ 143 u_char vl_oep; /* Output Enable polarity */ 144 u_char vl_hsp; /* Horizontal Sync polarity */ 145 u_char vl_vsp; /* Vertical Sync polarity */ 146 u_char vl_dp; /* Data polarity */ 147 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ 148 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ 149 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ 150 u_char vl_clor; /* Color, 0 = mono, 1 = color */ 151 u_char vl_tft; /* 0 = passive, 1 = TFT */ 152 153 /* Horizontal control register. Timing from data sheet */ 154 ushort vl_hpw; /* Horz sync pulse width */ 155 u_char vl_blw; /* Wait before of line */ 156 u_char vl_elw; /* Wait end of line */ 157 158 /* Vertical control register. */ 159 u_char vl_vpw; /* Vertical sync pulse width */ 160 u_char vl_bfw; /* Wait before of frame */ 161 u_char vl_efw; /* Wait end of frame */ 162 163 /* PXA LCD controller params */ 164 struct pxafb_info pxa; 165 } vidinfo_t; 166 167 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD) 168 169 typedef struct vidinfo { 170 ushort vl_col; /* Number of columns (i.e. 640) */ 171 ushort vl_row; /* Number of rows (i.e. 480) */ 172 u_long vl_clk; /* pixel clock in ps */ 173 174 /* LCD configuration register */ 175 u_long vl_sync; /* Horizontal / vertical sync */ 176 u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ 177 u_long vl_tft; /* 0 = passive, 1 = TFT */ 178 u_long vl_cont_pol_low; /* contrast polarity is low */ 179 u_long vl_clk_pol; /* clock polarity */ 180 181 /* Horizontal control register. */ 182 u_long vl_hsync_len; /* Length of horizontal sync */ 183 u_long vl_left_margin; /* Time from sync to picture */ 184 u_long vl_right_margin; /* Time from picture to sync */ 185 186 /* Vertical control register. */ 187 u_long vl_vsync_len; /* Length of vertical sync */ 188 u_long vl_upper_margin; /* Time from sync to picture */ 189 u_long vl_lower_margin; /* Time from picture to sync */ 190 191 u_long mmio; /* Memory mapped registers */ 192 } vidinfo_t; 193 194 #elif defined(CONFIG_EXYNOS_FB) 195 196 enum { 197 FIMD_RGB_INTERFACE = 1, 198 FIMD_CPU_INTERFACE = 2, 199 }; 200 201 enum exynos_fb_rgb_mode_t { 202 MODE_RGB_P = 0, 203 MODE_BGR_P = 1, 204 MODE_RGB_S = 2, 205 MODE_BGR_S = 3, 206 }; 207 208 typedef struct vidinfo { 209 ushort vl_col; /* Number of columns (i.e. 640) */ 210 ushort vl_row; /* Number of rows (i.e. 480) */ 211 ushort vl_width; /* Width of display area in millimeters */ 212 ushort vl_height; /* Height of display area in millimeters */ 213 214 /* LCD configuration register */ 215 u_char vl_freq; /* Frequency */ 216 u_char vl_clkp; /* Clock polarity */ 217 u_char vl_oep; /* Output Enable polarity */ 218 u_char vl_hsp; /* Horizontal Sync polarity */ 219 u_char vl_vsp; /* Vertical Sync polarity */ 220 u_char vl_dp; /* Data polarity */ 221 u_char vl_bpix; /* Bits per pixel */ 222 223 /* Horizontal control register. Timing from data sheet */ 224 u_char vl_hspw; /* Horz sync pulse width */ 225 u_char vl_hfpd; /* Wait before of line */ 226 u_char vl_hbpd; /* Wait end of line */ 227 228 /* Vertical control register. */ 229 u_char vl_vspw; /* Vertical sync pulse width */ 230 u_char vl_vfpd; /* Wait before of frame */ 231 u_char vl_vbpd; /* Wait end of frame */ 232 u_char vl_cmd_allow_len; /* Wait end of frame */ 233 234 void (*cfg_gpio)(void); 235 void (*backlight_on)(unsigned int onoff); 236 void (*reset_lcd)(void); 237 void (*lcd_power_on)(void); 238 void (*cfg_ldo)(void); 239 void (*enable_ldo)(unsigned int onoff); 240 void (*mipi_power)(void); 241 void (*backlight_reset)(void); 242 243 unsigned int win_id; 244 unsigned int init_delay; 245 unsigned int power_on_delay; 246 unsigned int reset_delay; 247 unsigned int interface_mode; 248 unsigned int mipi_enabled; 249 unsigned int dp_enabled; 250 unsigned int cs_setup; 251 unsigned int wr_setup; 252 unsigned int wr_act; 253 unsigned int wr_hold; 254 unsigned int logo_on; 255 unsigned int logo_width; 256 unsigned int logo_height; 257 unsigned long logo_addr; 258 unsigned int rgb_mode; 259 unsigned int resolution; 260 261 /* parent clock name(MPLL, EPLL or VPLL) */ 262 unsigned int pclk_name; 263 /* ratio value for source clock from parent clock. */ 264 unsigned int sclk_div; 265 266 unsigned int dual_lcd_enabled; 267 268 } vidinfo_t; 269 270 void init_panel_info(vidinfo_t *vid); 271 272 #else 273 274 typedef struct vidinfo { 275 ushort vl_col; /* Number of columns (i.e. 160) */ 276 ushort vl_row; /* Number of rows (i.e. 100) */ 277 278 u_char vl_bpix; /* Bits per pixel, 0 = 1 */ 279 280 ushort *cmap; /* Pointer to the colormap */ 281 282 void *priv; /* Pointer to driver-specific data */ 283 } vidinfo_t; 284 285 #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_MCC200, CONFIG_ATMEL_LCD */ 286 287 extern vidinfo_t panel_info; 288 289 /* Video functions */ 290 291 #if defined(CONFIG_RBC823) 292 void lcd_disable (void); 293 #endif 294 295 296 /* int lcd_init (void *lcdbase); */ 297 void lcd_putc (const char c); 298 void lcd_puts (const char *s); 299 void lcd_printf (const char *fmt, ...); 300 void lcd_clear(void); 301 int lcd_display_bitmap(ulong bmp_image, int x, int y); 302 303 /** 304 * Get the width of the LCD in pixels 305 * 306 * @return width of LCD in pixels 307 */ 308 int lcd_get_pixel_width(void); 309 310 /** 311 * Get the height of the LCD in pixels 312 * 313 * @return height of LCD in pixels 314 */ 315 int lcd_get_pixel_height(void); 316 317 /** 318 * Get the number of text lines/rows on the LCD 319 * 320 * @return number of rows 321 */ 322 int lcd_get_screen_rows(void); 323 324 /** 325 * Get the number of text columns on the LCD 326 * 327 * @return number of columns 328 */ 329 int lcd_get_screen_columns(void); 330 331 /** 332 * Set the position of the text cursor 333 * 334 * @param col Column to place cursor (0 = left side) 335 * @param row Row to place cursor (0 = top line) 336 */ 337 void lcd_position_cursor(unsigned col, unsigned row); 338 339 /* Allow boards to customize the information displayed */ 340 void lcd_show_board_info(void); 341 342 /* Return the size of the LCD frame buffer, and the line length */ 343 int lcd_get_size(int *line_length); 344 345 /************************************************************************/ 346 /* ** BITMAP DISPLAY SUPPORT */ 347 /************************************************************************/ 348 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 349 # include <bmp_layout.h> 350 # include <asm/byteorder.h> 351 #endif 352 353 /* 354 * Information about displays we are using. This is for configuring 355 * the LCD controller and memory allocation. Someone has to know what 356 * is connected, as we can't autodetect anything. 357 */ 358 #define CONFIG_SYS_HIGH 0 /* Pins are active high */ 359 #define CONFIG_SYS_LOW 1 /* Pins are active low */ 360 361 #define LCD_MONOCHROME 0 362 #define LCD_COLOR2 1 363 #define LCD_COLOR4 2 364 #define LCD_COLOR8 3 365 #define LCD_COLOR16 4 366 367 /*----------------------------------------------------------------------*/ 368 #if defined(CONFIG_LCD_INFO_BELOW_LOGO) 369 # define LCD_INFO_X 0 370 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) 371 #elif defined(CONFIG_LCD_LOGO) 372 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) 373 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 374 #else 375 # define LCD_INFO_X (VIDEO_FONT_WIDTH) 376 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 377 #endif 378 379 /* Default to 8bpp if bit depth not specified */ 380 #ifndef LCD_BPP 381 # define LCD_BPP LCD_COLOR8 382 #endif 383 #ifndef LCD_DF 384 # define LCD_DF 1 385 #endif 386 387 /* Calculate nr. of bits per pixel and nr. of colors */ 388 #define NBITS(bit_code) (1 << (bit_code)) 389 #define NCOLORS(bit_code) (1 << NBITS(bit_code)) 390 391 /************************************************************************/ 392 /* ** CONSOLE CONSTANTS */ 393 /************************************************************************/ 394 #if LCD_BPP == LCD_MONOCHROME 395 396 /* 397 * Simple black/white definitions 398 */ 399 # define CONSOLE_COLOR_BLACK 0 400 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */ 401 402 #elif LCD_BPP == LCD_COLOR8 403 404 /* 405 * 8bpp color definitions 406 */ 407 # define CONSOLE_COLOR_BLACK 0 408 # define CONSOLE_COLOR_RED 1 409 # define CONSOLE_COLOR_GREEN 2 410 # define CONSOLE_COLOR_YELLOW 3 411 # define CONSOLE_COLOR_BLUE 4 412 # define CONSOLE_COLOR_MAGENTA 5 413 # define CONSOLE_COLOR_CYAN 6 414 # define CONSOLE_COLOR_GREY 14 415 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ 416 417 #else 418 419 /* 420 * 16bpp color definitions 421 */ 422 # define CONSOLE_COLOR_BLACK 0x0000 423 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ 424 425 #endif /* color definitions */ 426 427 /************************************************************************/ 428 #ifndef PAGE_SIZE 429 # define PAGE_SIZE 4096 430 #endif 431 432 /************************************************************************/ 433 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 434 /************************************************************************/ 435 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 436 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 437 / VIDEO_FONT_HEIGHT) 438 #else 439 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 440 #endif 441 442 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 443 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 444 #define CONSOLE_ROW_FIRST (lcd_console_address) 445 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 446 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 447 - CONSOLE_ROW_SIZE) 448 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 449 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 450 451 #if LCD_BPP == LCD_MONOCHROME 452 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 453 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 454 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 455 # define COLOR_MASK(c) (c) 456 #else 457 # error Unsupported LCD BPP. 458 #endif 459 460 /************************************************************************/ 461 462 #endif /* _LCD_H_ */ 463