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
  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 #if defined CONFIG_MPC823
  61 /*
  62  * LCD controller stucture for MPC823 CPU
  63  */
  64 typedef struct vidinfo {
  65         ushort  vl_col;         /* Number of columns (i.e. 640) */
  66         ushort  vl_row;         /* Number of rows (i.e. 480) */
  67         ushort  vl_width;       /* Width of display area in millimeters */
  68         ushort  vl_height;      /* Height of display area in millimeters */
  69
  70         /* LCD configuration register */
  71         u_char  vl_clkp;        /* Clock polarity */
  72         u_char  vl_oep;         /* Output Enable polarity */
  73         u_char  vl_hsp;         /* Horizontal Sync polarity */
  74         u_char  vl_vsp;         /* Vertical Sync polarity */
  75         u_char  vl_dp;          /* Data polarity */
  76         u_char  vl_bpix;        /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */
  77         u_char  vl_lbw;         /* LCD Bus width, 0 = 4, 1 = 8 */
  78         u_char  vl_splt;        /* Split display, 0 = single-scan, 1 = dual-scan */
  79         u_char  vl_clor;        /* Color, 0 = mono, 1 = color */
  80         u_char  vl_tft;         /* 0 = passive, 1 = TFT */
  81
  82         /* Horizontal control register. Timing from data sheet */
  83         ushort  vl_wbl;         /* Wait between lines */
  84
  85         /* Vertical control register */
  86         u_char  vl_vpw;         /* Vertical sync pulse width */
  87         u_char  vl_lcdac;       /* LCD AC timing */
  88         u_char  vl_wbf;         /* Wait between frames */
  89 } vidinfo_t;
  90
  91 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
  92         defined CONFIG_CPU_MONAHANS
  93 /*
  94  * PXA LCD DMA descriptor
  95  */
  96 struct pxafb_dma_descriptor {
  97         u_long  fdadr;          /* Frame descriptor address register */
  98         u_long  fsadr;          /* Frame source address register */
  99         u_long  fidr;           /* Frame ID register */
 100         u_long  ldcmd;          /* Command register */
 101 };
 102
 103 /*
 104  * PXA LCD info
 105  */
 106 struct pxafb_info {
 107
 108         /* Misc registers */
 109         u_long  reg_lccr3;
 110         u_long  reg_lccr2;
 111         u_long  reg_lccr1;
 112         u_long  reg_lccr0;
 113         u_long  fdadr0;
 114         u_long  fdadr1;
 115
 116         /* DMA descriptors */
 117         struct  pxafb_dma_descriptor *  dmadesc_fblow;
 118         struct  pxafb_dma_descriptor *  dmadesc_fbhigh;
 119         struct  pxafb_dma_descriptor *  dmadesc_palette;
 120
 121         u_long  screen;         /* physical address of frame buffer */
 122         u_long  palette;        /* physical address of palette memory */
 123         u_int   palette_size;
 124 };
 125
 126 /*
 127  * LCD controller stucture for PXA CPU
 128  */
 129 typedef struct vidinfo {
 130         ushort  vl_col;         /* Number of columns (i.e. 640) */
 131         ushort  vl_row;         /* Number of rows (i.e. 480) */
 132         ushort  vl_width;       /* Width of display area in millimeters */
 133         ushort  vl_height;      /* Height of display area in millimeters */
 134
 135         /* LCD configuration register */
 136         u_char  vl_clkp;        /* Clock polarity */
 137         u_char  vl_oep;         /* Output Enable polarity */
 138         u_char  vl_hsp;         /* Horizontal Sync polarity */
 139         u_char  vl_vsp;         /* Vertical Sync polarity */
 140         u_char  vl_dp;          /* Data polarity */
 141         u_char  vl_bpix;        /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
 142         u_char  vl_lbw;         /* LCD Bus width, 0 = 4, 1 = 8 */
 143         u_char  vl_splt;        /* Split display, 0 = single-scan, 1 = dual-scan */
 144         u_char  vl_clor;        /* Color, 0 = mono, 1 = color */
 145         u_char  vl_tft;         /* 0 = passive, 1 = TFT */
 146
 147         /* Horizontal control register. Timing from data sheet */
 148         ushort  vl_hpw;         /* Horz sync pulse width */
 149         u_char  vl_blw;         /* Wait before of line */
 150         u_char  vl_elw;         /* Wait end of line */
 151
 152         /* Vertical control register. */
 153         u_char  vl_vpw;         /* Vertical sync pulse width */
 154         u_char  vl_bfw;         /* Wait before of frame */
 155         u_char  vl_efw;         /* Wait end of frame */
 156
 157         /* PXA LCD controller params */
 158         struct  pxafb_info pxa;
 159 } vidinfo_t;
 160
 161 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD)
 162
 163 typedef struct vidinfo {
 164         ushort vl_col;          /* Number of columns (i.e. 640) */
 165         ushort vl_row;          /* Number of rows (i.e. 480) */
 166         u_long vl_clk;  /* pixel clock in ps    */
 167
 168         /* LCD configuration register */
 169         u_long vl_sync;         /* Horizontal / vertical sync */
 170         u_long vl_bpix;         /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
 171         u_long vl_tft;          /* 0 = passive, 1 = TFT */
 172         u_long vl_cont_pol_low; /* contrast polarity is low */
 173         u_long vl_clk_pol;      /* clock polarity */
 174
 175         /* Horizontal control register. */
 176         u_long vl_hsync_len;    /* Length of horizontal sync */
 177         u_long vl_left_margin;  /* Time from sync to picture */
 178         u_long vl_right_margin; /* Time from picture to sync */
 179
 180         /* Vertical control register. */
 181         u_long vl_vsync_len;    /* Length of vertical sync */
 182         u_long vl_upper_margin; /* Time from sync to picture */
 183         u_long vl_lower_margin; /* Time from picture to sync */
 184
 185         u_long  mmio;           /* Memory mapped registers */
 186 } vidinfo_t;
 187
 188 #elif defined(CONFIG_EXYNOS_FB)
 189
 190 enum {
 191         FIMD_RGB_INTERFACE = 1,
 192         FIMD_CPU_INTERFACE = 2,
 193 };
 194
 195 enum exynos_fb_rgb_mode_t {
 196         MODE_RGB_P = 0,
 197         MODE_BGR_P = 1,
 198         MODE_RGB_S = 2,
 199         MODE_BGR_S = 3,
 200 };
 201
 202 typedef struct vidinfo {
 203         ushort vl_col;          /* Number of columns (i.e. 640) */
 204         ushort vl_row;          /* Number of rows (i.e. 480) */
 205         ushort vl_width;        /* Width of display area in millimeters */
 206         ushort vl_height;       /* Height of display area in millimeters */
 207
 208         /* LCD configuration register */
 209         u_char vl_freq;         /* Frequency */
 210         u_char vl_clkp;         /* Clock polarity */
 211         u_char vl_oep;          /* Output Enable polarity */
 212         u_char vl_hsp;          /* Horizontal Sync polarity */
 213         u_char vl_vsp;          /* Vertical Sync polarity */
 214         u_char vl_dp;           /* Data polarity */
 215         u_char vl_bpix;         /* Bits per pixel */
 216
 217         /* Horizontal control register. Timing from data sheet */
 218         u_char vl_hspw;         /* Horz sync pulse width */
 219         u_char vl_hfpd;         /* Wait before of line */
 220         u_char vl_hbpd;         /* Wait end of line */
 221
 222         /* Vertical control register. */
 223         u_char  vl_vspw;        /* Vertical sync pulse width */
 224         u_char  vl_vfpd;        /* Wait before of frame */
 225         u_char  vl_vbpd;        /* Wait end of frame */
 226         u_char  vl_cmd_allow_len; /* Wait end of frame */
 227
 228         void (*cfg_gpio)(void);
 229         void (*backlight_on)(unsigned int onoff);
 230         void (*reset_lcd)(void);
 231         void (*lcd_power_on)(void);
 232         void (*cfg_ldo)(void);
 233         void (*enable_ldo)(unsigned int onoff);
 234         void (*mipi_power)(void);
 235         void (*backlight_reset)(void);
 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 /* Allow boards to customize the information displayed */
 298 void lcd_show_board_info(void);
 299
 300 /************************************************************************/
 301 /* ** BITMAP DISPLAY SUPPORT                                            */
 302 /************************************************************************/
 303 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 304 # include <bmp_layout.h>
 305 # include <asm/byteorder.h>
 306 #endif
 307
 308 /*
 309  *  Information about displays we are using. This is for configuring
 310  *  the LCD controller and memory allocation. Someone has to know what
 311  *  is connected, as we can't autodetect anything.
 312  */
 313 #define CONFIG_SYS_HIGH 0       /* Pins are active high                 */
 314 #define CONFIG_SYS_LOW          1       /* Pins are active low                  */
 315
 316 #define LCD_MONOCHROME  0
 317 #define LCD_COLOR2      1
 318 #define LCD_COLOR4      2
 319 #define LCD_COLOR8      3
 320 #define LCD_COLOR16     4
 321
 322 /*----------------------------------------------------------------------*/
 323 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
 324 # define LCD_INFO_X             0
 325 # define LCD_INFO_Y             (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
 326 #elif defined(CONFIG_LCD_LOGO)
 327 # define LCD_INFO_X             (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
 328 # define LCD_INFO_Y             (VIDEO_FONT_HEIGHT)
 329 #else
 330 # define LCD_INFO_X             (VIDEO_FONT_WIDTH)
 331 # define LCD_INFO_Y             (VIDEO_FONT_HEIGHT)
 332 #endif
 333
 334 /* Default to 8bpp if bit depth not specified */
 335 #ifndef LCD_BPP
 336 # define LCD_BPP                        LCD_COLOR8
 337 #endif
 338 #ifndef LCD_DF
 339 # define LCD_DF                 1
 340 #endif
 341
 342 /* Calculate nr. of bits per pixel  and nr. of colors */
 343 #define NBITS(bit_code)         (1 << (bit_code))
 344 #define NCOLORS(bit_code)       (1 << NBITS(bit_code))
 345
 346 /************************************************************************/
 347 /* ** CONSOLE CONSTANTS                                                 */
 348 /************************************************************************/
 349 #if LCD_BPP == LCD_MONOCHROME
 350
 351 /*
 352  * Simple black/white definitions
 353  */
 354 # define CONSOLE_COLOR_BLACK    0
 355 # define CONSOLE_COLOR_WHITE    1       /* Must remain last / highest   */
 356
 357 #elif LCD_BPP == LCD_COLOR8
 358
 359 /*
 360  * 8bpp color definitions
 361  */
 362 # define CONSOLE_COLOR_BLACK    0
 363 # define CONSOLE_COLOR_RED      1
 364 # define CONSOLE_COLOR_GREEN    2
 365 # define CONSOLE_COLOR_YELLOW   3
 366 # define CONSOLE_COLOR_BLUE     4
 367 # define CONSOLE_COLOR_MAGENTA  5
 368 # define CONSOLE_COLOR_CYAN     6
 369 # define CONSOLE_COLOR_GREY     14
 370 # define CONSOLE_COLOR_WHITE    15      /* Must remain last / highest   */
 371
 372 #else
 373
 374 /*
 375  * 16bpp color definitions
 376  */
 377 # define CONSOLE_COLOR_BLACK    0x0000
 378 # define CONSOLE_COLOR_WHITE    0xffff  /* Must remain last / highest   */
 379
 380 #endif /* color definitions */
 381
 382 /************************************************************************/
 383 #ifndef PAGE_SIZE
 384 # define PAGE_SIZE      4096
 385 #endif
 386
 387 /************************************************************************/
 388 /* ** CONSOLE DEFINITIONS & FUNCTIONS                                   */
 389 /************************************************************************/
 390 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 391 # define CONSOLE_ROWS           ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
 392                                         / VIDEO_FONT_HEIGHT)
 393 #else
 394 # define CONSOLE_ROWS           (panel_info.vl_row / VIDEO_FONT_HEIGHT)
 395 #endif
 396
 397 #define CONSOLE_COLS            (panel_info.vl_col / VIDEO_FONT_WIDTH)
 398 #define CONSOLE_ROW_SIZE        (VIDEO_FONT_HEIGHT * lcd_line_length)
 399 #define CONSOLE_ROW_FIRST       (lcd_console_address)
 400 #define CONSOLE_ROW_SECOND      (lcd_console_address + CONSOLE_ROW_SIZE)
 401 #define CONSOLE_ROW_LAST        (lcd_console_address + CONSOLE_SIZE \
 402                                         - CONSOLE_ROW_SIZE)
 403 #define CONSOLE_SIZE            (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
 404 #define CONSOLE_SCROLL_SIZE     (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
 405
 406 #if LCD_BPP == LCD_MONOCHROME
 407 # define COLOR_MASK(c)          ((c)      | (c) << 1 | (c) << 2 | (c) << 3 | \
 408                                  (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
 409 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
 410 # define COLOR_MASK(c)          (c)
 411 #else
 412 # error Unsupported LCD BPP.
 413 #endif
 414
 415 /************************************************************************/
 416
 417 #endif  /* _LCD_H_ */