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 extern int board_splash_screen_prepare(void); 51 52 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */ 53 extern void lcd_setcolreg (ushort regno, 54 ushort red, ushort green, ushort blue); 55 extern void lcd_initcolregs (void); 56 57 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */ 58 extern struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp); 59 extern int bmp_display(ulong addr, int x, int y); 60 61 /** 62 * Set whether we need to flush the dcache when changing the LCD image. This 63 * defaults to off. 64 * 65 * @param flush non-zero to flush cache after update, 0 to skip 66 */ 67 void lcd_set_flush_dcache(int flush); 68 69 #if defined CONFIG_MPC823 70 /* 71 * LCD controller stucture for MPC823 CPU 72 */ 73 typedef struct vidinfo { 74 ushort vl_col; /* Number of columns (i.e. 640) */ 75 ushort vl_row; /* Number of rows (i.e. 480) */ 76 ushort vl_width; /* Width of display area in millimeters */ 77 ushort vl_height; /* Height of display area in millimeters */ 78 79 /* LCD configuration register */ 80 u_char vl_clkp; /* Clock polarity */ 81 u_char vl_oep; /* Output Enable polarity */ 82 u_char vl_hsp; /* Horizontal Sync polarity */ 83 u_char vl_vsp; /* Vertical Sync polarity */ 84 u_char vl_dp; /* Data polarity */ 85 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */ 86 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ 87 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ 88 u_char vl_clor; /* Color, 0 = mono, 1 = color */ 89 u_char vl_tft; /* 0 = passive, 1 = TFT */ 90 91 /* Horizontal control register. Timing from data sheet */ 92 ushort vl_wbl; /* Wait between lines */ 93 94 /* Vertical control register */ 95 u_char vl_vpw; /* Vertical sync pulse width */ 96 u_char vl_lcdac; /* LCD AC timing */ 97 u_char vl_wbf; /* Wait between frames */ 98 } vidinfo_t; 99 100 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 101 defined CONFIG_CPU_MONAHANS 102 /* 103 * PXA LCD DMA descriptor 104 */ 105 struct pxafb_dma_descriptor { 106 u_long fdadr; /* Frame descriptor address register */ 107 u_long fsadr; /* Frame source address register */ 108 u_long fidr; /* Frame ID register */ 109 u_long ldcmd; /* Command register */ 110 }; 111 112 /* 113 * PXA LCD info 114 */ 115 struct pxafb_info { 116 117 /* Misc registers */ 118 u_long reg_lccr3; 119 u_long reg_lccr2; 120 u_long reg_lccr1; 121 u_long reg_lccr0; 122 u_long fdadr0; 123 u_long fdadr1; 124 125 /* DMA descriptors */ 126 struct pxafb_dma_descriptor * dmadesc_fblow; 127 struct pxafb_dma_descriptor * dmadesc_fbhigh; 128 struct pxafb_dma_descriptor * dmadesc_palette; 129 130 u_long screen; /* physical address of frame buffer */ 131 u_long palette; /* physical address of palette memory */ 132 u_int palette_size; 133 }; 134 135 /* 136 * LCD controller stucture for PXA CPU 137 */ 138 typedef struct vidinfo { 139 ushort vl_col; /* Number of columns (i.e. 640) */ 140 ushort vl_row; /* Number of rows (i.e. 480) */ 141 ushort vl_width; /* Width of display area in millimeters */ 142 ushort vl_height; /* Height of display area in millimeters */ 143 144 /* LCD configuration register */ 145 u_char vl_clkp; /* Clock polarity */ 146 u_char vl_oep; /* Output Enable polarity */ 147 u_char vl_hsp; /* Horizontal Sync polarity */ 148 u_char vl_vsp; /* Vertical Sync polarity */ 149 u_char vl_dp; /* Data polarity */ 150 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ 151 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ 152 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ 153 u_char vl_clor; /* Color, 0 = mono, 1 = color */ 154 u_char vl_tft; /* 0 = passive, 1 = TFT */ 155 156 /* Horizontal control register. Timing from data sheet */ 157 ushort vl_hpw; /* Horz sync pulse width */ 158 u_char vl_blw; /* Wait before of line */ 159 u_char vl_elw; /* Wait end of line */ 160 161 /* Vertical control register. */ 162 u_char vl_vpw; /* Vertical sync pulse width */ 163 u_char vl_bfw; /* Wait before of frame */ 164 u_char vl_efw; /* Wait end of frame */ 165 166 /* PXA LCD controller params */ 167 struct pxafb_info pxa; 168 } vidinfo_t; 169 170 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD) 171 172 typedef struct vidinfo { 173 ushort vl_col; /* Number of columns (i.e. 640) */ 174 ushort vl_row; /* Number of rows (i.e. 480) */ 175 u_long vl_clk; /* pixel clock in ps */ 176 177 /* LCD configuration register */ 178 u_long vl_sync; /* Horizontal / vertical sync */ 179 u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ 180 u_long vl_tft; /* 0 = passive, 1 = TFT */ 181 u_long vl_cont_pol_low; /* contrast polarity is low */ 182 u_long vl_clk_pol; /* clock polarity */ 183 184 /* Horizontal control register. */ 185 u_long vl_hsync_len; /* Length of horizontal sync */ 186 u_long vl_left_margin; /* Time from sync to picture */ 187 u_long vl_right_margin; /* Time from picture to sync */ 188 189 /* Vertical control register. */ 190 u_long vl_vsync_len; /* Length of vertical sync */ 191 u_long vl_upper_margin; /* Time from sync to picture */ 192 u_long vl_lower_margin; /* Time from picture to sync */ 193 194 u_long mmio; /* Memory mapped registers */ 195 } vidinfo_t; 196 197 #elif defined(CONFIG_EXYNOS_FB) 198 199 enum { 200 FIMD_RGB_INTERFACE = 1, 201 FIMD_CPU_INTERFACE = 2, 202 }; 203 204 enum exynos_fb_rgb_mode_t { 205 MODE_RGB_P = 0, 206 MODE_BGR_P = 1, 207 MODE_RGB_S = 2, 208 MODE_BGR_S = 3, 209 }; 210 211 typedef struct vidinfo { 212 ushort vl_col; /* Number of columns (i.e. 640) */ 213 ushort vl_row; /* Number of rows (i.e. 480) */ 214 ushort vl_width; /* Width of display area in millimeters */ 215 ushort vl_height; /* Height of display area in millimeters */ 216 217 /* LCD configuration register */ 218 u_char vl_freq; /* Frequency */ 219 u_char vl_clkp; /* Clock polarity */ 220 u_char vl_oep; /* Output Enable polarity */ 221 u_char vl_hsp; /* Horizontal Sync polarity */ 222 u_char vl_vsp; /* Vertical Sync polarity */ 223 u_char vl_dp; /* Data polarity */ 224 u_char vl_bpix; /* Bits per pixel */ 225 226 /* Horizontal control register. Timing from data sheet */ 227 u_char vl_hspw; /* Horz sync pulse width */ 228 u_char vl_hfpd; /* Wait before of line */ 229 u_char vl_hbpd; /* Wait end of line */ 230 231 /* Vertical control register. */ 232 u_char vl_vspw; /* Vertical sync pulse width */ 233 u_char vl_vfpd; /* Wait before of frame */ 234 u_char vl_vbpd; /* Wait end of frame */ 235 u_char vl_cmd_allow_len; /* Wait end of frame */ 236 237 void (*cfg_gpio)(void); 238 void (*backlight_on)(unsigned int onoff); 239 void (*reset_lcd)(void); 240 void (*lcd_power_on)(void); 241 void (*cfg_ldo)(void); 242 void (*enable_ldo)(unsigned int onoff); 243 void (*mipi_power)(void); 244 void (*backlight_reset)(void); 245 246 unsigned int win_id; 247 unsigned int init_delay; 248 unsigned int power_on_delay; 249 unsigned int reset_delay; 250 unsigned int interface_mode; 251 unsigned int mipi_enabled; 252 unsigned int dp_enabled; 253 unsigned int cs_setup; 254 unsigned int wr_setup; 255 unsigned int wr_act; 256 unsigned int wr_hold; 257 unsigned int logo_on; 258 unsigned int logo_width; 259 unsigned int logo_height; 260 unsigned long logo_addr; 261 unsigned int rgb_mode; 262 unsigned int resolution; 263 264 /* parent clock name(MPLL, EPLL or VPLL) */ 265 unsigned int pclk_name; 266 /* ratio value for source clock from parent clock. */ 267 unsigned int sclk_div; 268 269 unsigned int dual_lcd_enabled; 270 271 } vidinfo_t; 272 273 void init_panel_info(vidinfo_t *vid); 274 275 #else 276 277 typedef struct vidinfo { 278 ushort vl_col; /* Number of columns (i.e. 160) */ 279 ushort vl_row; /* Number of rows (i.e. 100) */ 280 281 u_char vl_bpix; /* Bits per pixel, 0 = 1 */ 282 283 ushort *cmap; /* Pointer to the colormap */ 284 285 void *priv; /* Pointer to driver-specific data */ 286 } vidinfo_t; 287 288 #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_MCC200, CONFIG_ATMEL_LCD */ 289 290 extern vidinfo_t panel_info; 291 292 /* Video functions */ 293 294 #if defined(CONFIG_RBC823) 295 void lcd_disable (void); 296 #endif 297 298 299 /* int lcd_init (void *lcdbase); */ 300 void lcd_putc (const char c); 301 void lcd_puts (const char *s); 302 void lcd_printf (const char *fmt, ...); 303 void lcd_clear(void); 304 int lcd_display_bitmap(ulong bmp_image, int x, int y); 305 306 /** 307 * Get the width of the LCD in pixels 308 * 309 * @return width of LCD in pixels 310 */ 311 int lcd_get_pixel_width(void); 312 313 /** 314 * Get the height of the LCD in pixels 315 * 316 * @return height of LCD in pixels 317 */ 318 int lcd_get_pixel_height(void); 319 320 /** 321 * Get the number of text lines/rows on the LCD 322 * 323 * @return number of rows 324 */ 325 int lcd_get_screen_rows(void); 326 327 /** 328 * Get the number of text columns on the LCD 329 * 330 * @return number of columns 331 */ 332 int lcd_get_screen_columns(void); 333 334 /** 335 * Set the position of the text cursor 336 * 337 * @param col Column to place cursor (0 = left side) 338 * @param row Row to place cursor (0 = top line) 339 */ 340 void lcd_position_cursor(unsigned col, unsigned row); 341 342 /* Allow boards to customize the information displayed */ 343 void lcd_show_board_info(void); 344 345 /* Return the size of the LCD frame buffer, and the line length */ 346 int lcd_get_size(int *line_length); 347 348 /************************************************************************/ 349 /* ** BITMAP DISPLAY SUPPORT */ 350 /************************************************************************/ 351 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 352 # include <bmp_layout.h> 353 # include <asm/byteorder.h> 354 #endif 355 356 /* 357 * Information about displays we are using. This is for configuring 358 * the LCD controller and memory allocation. Someone has to know what 359 * is connected, as we can't autodetect anything. 360 */ 361 #define CONFIG_SYS_HIGH 0 /* Pins are active high */ 362 #define CONFIG_SYS_LOW 1 /* Pins are active low */ 363 364 #define LCD_MONOCHROME 0 365 #define LCD_COLOR2 1 366 #define LCD_COLOR4 2 367 #define LCD_COLOR8 3 368 #define LCD_COLOR16 4 369 370 /*----------------------------------------------------------------------*/ 371 #if defined(CONFIG_LCD_INFO_BELOW_LOGO) 372 # define LCD_INFO_X 0 373 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) 374 #elif defined(CONFIG_LCD_LOGO) 375 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) 376 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 377 #else 378 # define LCD_INFO_X (VIDEO_FONT_WIDTH) 379 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 380 #endif 381 382 /* Default to 8bpp if bit depth not specified */ 383 #ifndef LCD_BPP 384 # define LCD_BPP LCD_COLOR8 385 #endif 386 #ifndef LCD_DF 387 # define LCD_DF 1 388 #endif 389 390 /* Calculate nr. of bits per pixel and nr. of colors */ 391 #define NBITS(bit_code) (1 << (bit_code)) 392 #define NCOLORS(bit_code) (1 << NBITS(bit_code)) 393 394 /************************************************************************/ 395 /* ** CONSOLE CONSTANTS */ 396 /************************************************************************/ 397 #if LCD_BPP == LCD_MONOCHROME 398 399 /* 400 * Simple black/white definitions 401 */ 402 # define CONSOLE_COLOR_BLACK 0 403 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */ 404 405 #elif LCD_BPP == LCD_COLOR8 406 407 /* 408 * 8bpp color definitions 409 */ 410 # define CONSOLE_COLOR_BLACK 0 411 # define CONSOLE_COLOR_RED 1 412 # define CONSOLE_COLOR_GREEN 2 413 # define CONSOLE_COLOR_YELLOW 3 414 # define CONSOLE_COLOR_BLUE 4 415 # define CONSOLE_COLOR_MAGENTA 5 416 # define CONSOLE_COLOR_CYAN 6 417 # define CONSOLE_COLOR_GREY 14 418 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ 419 420 #else 421 422 /* 423 * 16bpp color definitions 424 */ 425 # define CONSOLE_COLOR_BLACK 0x0000 426 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ 427 428 #endif /* color definitions */ 429 430 /************************************************************************/ 431 #ifndef PAGE_SIZE 432 # define PAGE_SIZE 4096 433 #endif 434 435 /************************************************************************/ 436 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 437 /************************************************************************/ 438 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 439 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 440 / VIDEO_FONT_HEIGHT) 441 #else 442 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 443 #endif 444 445 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 446 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 447 #define CONSOLE_ROW_FIRST (lcd_console_address) 448 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 449 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 450 - CONSOLE_ROW_SIZE) 451 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 452 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 453 454 #if LCD_BPP == LCD_MONOCHROME 455 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 456 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 457 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 458 # define COLOR_MASK(c) (c) 459 #else 460 # error Unsupported LCD BPP. 461 #endif 462 463 /************************************************************************/ 464 465 #endif /* _LCD_H_ */ 466