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