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 unsigned int win_id; 238 unsigned int init_delay; 239 unsigned int power_on_delay; 240 unsigned int reset_delay; 241 unsigned int interface_mode; 242 unsigned int mipi_enabled; 243 unsigned int dp_enabled; 244 unsigned int cs_setup; 245 unsigned int wr_setup; 246 unsigned int wr_act; 247 unsigned int wr_hold; 248 unsigned int logo_on; 249 unsigned int logo_width; 250 unsigned int logo_height; 251 unsigned long logo_addr; 252 unsigned int rgb_mode; 253 unsigned int resolution; 254 255 /* parent clock name(MPLL, EPLL or VPLL) */ 256 unsigned int pclk_name; 257 /* ratio value for source clock from parent clock. */ 258 unsigned int sclk_div; 259 260 unsigned int dual_lcd_enabled; 261 262 } vidinfo_t; 263 264 void init_panel_info(vidinfo_t *vid); 265 266 #else 267 268 typedef struct vidinfo { 269 ushort vl_col; /* Number of columns (i.e. 160) */ 270 ushort vl_row; /* Number of rows (i.e. 100) */ 271 272 u_char vl_bpix; /* Bits per pixel, 0 = 1 */ 273 274 ushort *cmap; /* Pointer to the colormap */ 275 276 void *priv; /* Pointer to driver-specific data */ 277 } vidinfo_t; 278 279 #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_MCC200, CONFIG_ATMEL_LCD */ 280 281 extern vidinfo_t panel_info; 282 283 /* Video functions */ 284 285 #if defined(CONFIG_RBC823) 286 void lcd_disable (void); 287 #endif 288 289 290 /* int lcd_init (void *lcdbase); */ 291 void lcd_putc (const char c); 292 void lcd_puts (const char *s); 293 void lcd_printf (const char *fmt, ...); 294 void lcd_clear(void); 295 int lcd_display_bitmap(ulong bmp_image, int x, int y); 296 297 /** 298 * Get the width of the LCD in pixels 299 * 300 * @return width of LCD in pixels 301 */ 302 int lcd_get_pixel_width(void); 303 304 /** 305 * Get the height of the LCD in pixels 306 * 307 * @return height of LCD in pixels 308 */ 309 int lcd_get_pixel_height(void); 310 311 /** 312 * Get the number of text lines/rows on the LCD 313 * 314 * @return number of rows 315 */ 316 int lcd_get_screen_rows(void); 317 318 /** 319 * Get the number of text columns on the LCD 320 * 321 * @return number of columns 322 */ 323 int lcd_get_screen_columns(void); 324 325 /** 326 * Set the position of the text cursor 327 * 328 * @param col Column to place cursor (0 = left side) 329 * @param row Row to place cursor (0 = top line) 330 */ 331 void lcd_position_cursor(unsigned col, unsigned row); 332 333 /* Allow boards to customize the information displayed */ 334 void lcd_show_board_info(void); 335 336 /* Return the size of the LCD frame buffer, and the line length */ 337 int lcd_get_size(int *line_length); 338 339 /************************************************************************/ 340 /* ** BITMAP DISPLAY SUPPORT */ 341 /************************************************************************/ 342 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 343 # include <bmp_layout.h> 344 # include <asm/byteorder.h> 345 #endif 346 347 /* 348 * Information about displays we are using. This is for configuring 349 * the LCD controller and memory allocation. Someone has to know what 350 * is connected, as we can't autodetect anything. 351 */ 352 #define CONFIG_SYS_HIGH 0 /* Pins are active high */ 353 #define CONFIG_SYS_LOW 1 /* Pins are active low */ 354 355 #define LCD_MONOCHROME 0 356 #define LCD_COLOR2 1 357 #define LCD_COLOR4 2 358 #define LCD_COLOR8 3 359 #define LCD_COLOR16 4 360 361 /*----------------------------------------------------------------------*/ 362 #if defined(CONFIG_LCD_INFO_BELOW_LOGO) 363 # define LCD_INFO_X 0 364 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) 365 #elif defined(CONFIG_LCD_LOGO) 366 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) 367 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 368 #else 369 # define LCD_INFO_X (VIDEO_FONT_WIDTH) 370 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT) 371 #endif 372 373 /* Default to 8bpp if bit depth not specified */ 374 #ifndef LCD_BPP 375 # define LCD_BPP LCD_COLOR8 376 #endif 377 #ifndef LCD_DF 378 # define LCD_DF 1 379 #endif 380 381 /* Calculate nr. of bits per pixel and nr. of colors */ 382 #define NBITS(bit_code) (1 << (bit_code)) 383 #define NCOLORS(bit_code) (1 << NBITS(bit_code)) 384 385 /************************************************************************/ 386 /* ** CONSOLE CONSTANTS */ 387 /************************************************************************/ 388 #if LCD_BPP == LCD_MONOCHROME 389 390 /* 391 * Simple black/white definitions 392 */ 393 # define CONSOLE_COLOR_BLACK 0 394 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */ 395 396 #elif LCD_BPP == LCD_COLOR8 397 398 /* 399 * 8bpp color definitions 400 */ 401 # define CONSOLE_COLOR_BLACK 0 402 # define CONSOLE_COLOR_RED 1 403 # define CONSOLE_COLOR_GREEN 2 404 # define CONSOLE_COLOR_YELLOW 3 405 # define CONSOLE_COLOR_BLUE 4 406 # define CONSOLE_COLOR_MAGENTA 5 407 # define CONSOLE_COLOR_CYAN 6 408 # define CONSOLE_COLOR_GREY 14 409 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ 410 411 #else 412 413 /* 414 * 16bpp color definitions 415 */ 416 # define CONSOLE_COLOR_BLACK 0x0000 417 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ 418 419 #endif /* color definitions */ 420 421 /************************************************************************/ 422 #ifndef PAGE_SIZE 423 # define PAGE_SIZE 4096 424 #endif 425 426 /************************************************************************/ 427 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 428 /************************************************************************/ 429 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 430 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 431 / VIDEO_FONT_HEIGHT) 432 #else 433 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 434 #endif 435 436 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 437 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 438 #define CONSOLE_ROW_FIRST (lcd_console_address) 439 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 440 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 441 - CONSOLE_ROW_SIZE) 442 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 443 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 444 445 #if LCD_BPP == LCD_MONOCHROME 446 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 447 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 448 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 449 # define COLOR_MASK(c) (c) 450 #else 451 # error Unsupported LCD BPP. 452 #endif 453 454 /************************************************************************/ 455 456 #endif /* _LCD_H_ */ 457