include/lcd.h

   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_ */