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