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
  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_ */