2 * Common LCD routines for supported CPUs
4 * (C) Copyright 2001-2002
5 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 /************************************************************************/
28 /************************************************************************/
37 #include <linux/types.h>
39 #if defined(CONFIG_POST)
45 #if defined(CONFIG_PXA250)
46 #include <asm/byteorder.h>
49 #if defined(CONFIG_MPC823)
53 #if defined(CONFIG_ATMEL_LCD)
54 #include <atmel_lcdc.h>
57 /************************************************************************/
59 /************************************************************************/
60 #include <video_font.h> /* Get font data, width and height */
62 /************************************************************************/
64 /************************************************************************/
65 #ifdef CONFIG_LCD_LOGO
66 # include <bmp_logo.h> /* Get logo data, width and height */
67 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
68 # error Default Color Map overlaps with Logo Color Map
72 DECLARE_GLOBAL_DATA_PTR;
74 ulong lcd_setmem (ulong addr);
76 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
77 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
78 static inline void lcd_putc_xy (ushort x, ushort y, uchar c);
80 static int lcd_init (void *lcdbase);
82 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
83 extern void lcd_ctrl_init (void *lcdbase);
84 extern void lcd_enable (void);
85 static void *lcd_logo (void);
88 #if LCD_BPP == LCD_COLOR8
89 extern void lcd_setcolreg (ushort regno,
90 ushort red, ushort green, ushort blue);
92 #if LCD_BPP == LCD_MONOCHROME
93 extern void lcd_initcolregs (void);
96 static int lcd_getbgcolor (void);
97 static void lcd_setfgcolor (int color);
98 static void lcd_setbgcolor (int color);
100 char lcd_is_enabled = 0;
101 extern vidinfo_t panel_info;
103 #ifdef NOT_USED_SO_FAR
104 static void lcd_getcolreg (ushort regno,
105 ushort *red, ushort *green, ushort *blue);
106 static int lcd_getfgcolor (void);
107 #endif /* NOT_USED_SO_FAR */
109 /************************************************************************/
111 /*----------------------------------------------------------------------*/
113 static void console_scrollup (void)
116 /* Copy up rows ignoring the first one */
117 memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
119 /* Clear the last one */
120 memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
123 * Poor attempt to optimize speed by moving "long"s.
124 * But the code is ugly, and not a bit faster :-(
126 ulong *t = (ulong *)CONSOLE_ROW_FIRST;
127 ulong *s = (ulong *)CONSOLE_ROW_SECOND;
128 ulong l = CONSOLE_SCROLL_SIZE / sizeof(ulong);
129 uchar c = lcd_color_bg & 0xFF;
130 ulong val= (c<<24) | (c<<16) | (c<<8) | c;
135 t = (ulong *)CONSOLE_ROW_LAST;
136 l = CONSOLE_ROW_SIZE / sizeof(ulong);
143 /*----------------------------------------------------------------------*/
145 static inline void console_back (void)
147 if (--console_col < 0) {
148 console_col = CONSOLE_COLS-1 ;
149 if (--console_row < 0) {
154 lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
155 console_row * VIDEO_FONT_HEIGHT,
159 /*----------------------------------------------------------------------*/
161 static inline void console_newline (void)
166 /* Check if we need to scroll the terminal */
167 if (console_row >= CONSOLE_ROWS) {
168 /* Scroll everything up */
169 console_scrollup () ;
174 /*----------------------------------------------------------------------*/
176 void lcd_putc (const char c)
178 if (!lcd_is_enabled) {
184 case '\r': console_col = 0;
187 case '\n': console_newline();
190 case '\t': /* Tab (8 chars alignment) */
194 if (console_col >= CONSOLE_COLS) {
199 case '\b': console_back();
202 default: lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
203 console_row * VIDEO_FONT_HEIGHT,
205 if (++console_col >= CONSOLE_COLS) {
213 /*----------------------------------------------------------------------*/
215 void lcd_puts (const char *s)
217 if (!lcd_is_enabled) {
227 /*----------------------------------------------------------------------*/
229 void lcd_printf(const char *fmt, ...)
232 char buf[CONFIG_SYS_PBSIZE];
235 vsprintf(buf, fmt, args);
241 /************************************************************************/
242 /* ** Low-Level Graphics Routines */
243 /************************************************************************/
245 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
250 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
251 off = x * (1 << LCD_BPP) % 8;
253 for (row=0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
258 #if LCD_BPP == LCD_MONOCHROME
259 uchar rest = *d & -(1 << (8-off));
262 for (i=0; i<count; ++i) {
266 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
268 #if LCD_BPP == LCD_MONOCHROME
269 sym = (COLOR_MASK(lcd_color_fg) & bits) |
270 (COLOR_MASK(lcd_color_bg) & ~bits);
272 *d++ = rest | (sym >> off);
273 rest = sym << (8-off);
274 #elif LCD_BPP == LCD_COLOR8
275 for (c=0; c<8; ++c) {
276 *d++ = (bits & 0x80) ?
277 lcd_color_fg : lcd_color_bg;
280 #elif LCD_BPP == LCD_COLOR16
281 for (c=0; c<16; ++c) {
282 *d++ = (bits & 0x80) ?
283 lcd_color_fg : lcd_color_bg;
288 #if LCD_BPP == LCD_MONOCHROME
289 *d = rest | (*d & ((1 << (8-off)) - 1));
294 /*----------------------------------------------------------------------*/
296 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
298 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
299 lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
301 lcd_drawchars (x, y, s, strlen ((char *)s));
305 /*----------------------------------------------------------------------*/
307 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
309 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
310 lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
312 lcd_drawchars (x, y, &c, 1);
316 /************************************************************************/
317 /** Small utility to check that you got the colours right */
318 /************************************************************************/
319 #ifdef LCD_TEST_PATTERN
324 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
325 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
326 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
329 static void test_pattern (void)
331 ushort v_max = panel_info.vl_row;
332 ushort h_max = panel_info.vl_col;
333 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
334 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
336 uchar *pix = (uchar *)lcd_base;
338 printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
339 h_max, v_max, h_step, v_step);
341 /* WARNING: Code silently assumes 8bit/pixel */
342 for (v=0; v<v_max; ++v) {
343 uchar iy = v / v_step;
344 for (h=0; h<h_max; ++h) {
345 uchar ix = N_BLK_HOR * iy + (h/h_step);
346 *pix++ = test_colors[ix];
350 #endif /* LCD_TEST_PATTERN */
353 /************************************************************************/
354 /* ** GENERIC Initialization Routines */
355 /************************************************************************/
357 int drv_lcd_init (void)
362 lcd_base = (void *)(gd->fb_base);
364 lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
366 lcd_init (lcd_base); /* LCD initialization */
368 /* Device initialization */
369 memset (&lcddev, 0, sizeof (lcddev));
371 strcpy (lcddev.name, "lcd");
372 lcddev.ext = 0; /* No extensions */
373 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
374 lcddev.putc = lcd_putc; /* 'putc' function */
375 lcddev.puts = lcd_puts; /* 'puts' function */
377 rc = device_register (&lcddev);
379 return (rc == 0) ? 1 : rc;
382 /*----------------------------------------------------------------------*/
383 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
385 #if LCD_BPP == LCD_MONOCHROME
386 /* Setting the palette */
389 #elif LCD_BPP == LCD_COLOR8
390 /* Setting the palette */
391 lcd_setcolreg (CONSOLE_COLOR_BLACK, 0, 0, 0);
392 lcd_setcolreg (CONSOLE_COLOR_RED, 0xFF, 0, 0);
393 lcd_setcolreg (CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
394 lcd_setcolreg (CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
395 lcd_setcolreg (CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
396 lcd_setcolreg (CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
397 lcd_setcolreg (CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
398 lcd_setcolreg (CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
399 lcd_setcolreg (CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
402 #ifndef CONFIG_SYS_WHITE_ON_BLACK
403 lcd_setfgcolor (CONSOLE_COLOR_BLACK);
404 lcd_setbgcolor (CONSOLE_COLOR_WHITE);
406 lcd_setfgcolor (CONSOLE_COLOR_WHITE);
407 lcd_setbgcolor (CONSOLE_COLOR_BLACK);
408 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
410 #ifdef LCD_TEST_PATTERN
413 /* set framebuffer to background color */
414 memset ((char *)lcd_base,
415 COLOR_MASK(lcd_getbgcolor()),
416 lcd_line_length*panel_info.vl_row);
418 /* Paint the logo and retrieve LCD base address */
419 debug ("[LCD] Drawing the logo...\n");
420 lcd_console_address = lcd_logo ();
429 cls, 1, 1, lcd_clear,
430 "cls - clear screen\n",
434 /*----------------------------------------------------------------------*/
436 static int lcd_init (void *lcdbase)
438 /* Initialize the lcd controller */
439 debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
441 lcd_ctrl_init (lcdbase);
443 lcd_clear (NULL, 1, 1, NULL); /* dummy args */
446 /* Initialize the console */
448 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
449 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
451 console_row = 1; /* leave 1 blank line below logo */
458 /************************************************************************/
459 /* ** ROM capable initialization part - needed to reserve FB memory */
460 /************************************************************************/
462 * This is called early in the system initialization to grab memory
463 * for the LCD controller.
464 * Returns new address for monitor, after reserving LCD buffer memory
466 * Note that this is running from ROM, so no write access to global data.
468 ulong lcd_setmem (ulong addr)
471 int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
473 debug ("LCD panel info: %d x %d, %d bit/pix\n",
474 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
476 size = line_length * panel_info.vl_row;
478 /* Round up to nearest full page */
479 size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
481 /* Allocate pages for the frame buffer. */
484 debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
489 /*----------------------------------------------------------------------*/
491 static void lcd_setfgcolor (int color)
493 #ifdef CONFIG_ATMEL_LCD
494 lcd_color_fg = color;
496 lcd_color_fg = color & 0x0F;
500 /*----------------------------------------------------------------------*/
502 static void lcd_setbgcolor (int color)
504 #ifdef CONFIG_ATMEL_LCD
505 lcd_color_bg = color;
507 lcd_color_bg = color & 0x0F;
511 /*----------------------------------------------------------------------*/
513 #ifdef NOT_USED_SO_FAR
514 static int lcd_getfgcolor (void)
518 #endif /* NOT_USED_SO_FAR */
520 /*----------------------------------------------------------------------*/
522 static int lcd_getbgcolor (void)
527 /*----------------------------------------------------------------------*/
529 /************************************************************************/
530 /* ** Chipset depending Bitmap / Logo stuff... */
531 /************************************************************************/
532 #ifdef CONFIG_LCD_LOGO
533 void bitmap_plot (int x, int y)
535 #ifdef CONFIG_ATMEL_LCD
544 #if defined(CONFIG_PXA250)
545 struct pxafb_info *fbi = &panel_info.pxa;
546 #elif defined(CONFIG_MPC823)
547 volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
548 volatile cpm8xx_t *cp = &(immr->im_cpm);
551 debug ("Logo: width %d height %d colors %d cmap %d\n",
552 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
553 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
555 bmap = &bmp_logo_bitmap[0];
556 fb = (uchar *)(lcd_base + y * lcd_line_length + x);
558 if (NBITS(panel_info.vl_bpix) < 12) {
559 /* Leave room for default color map */
560 #if defined(CONFIG_PXA250)
561 cmap = (ushort *)fbi->palette;
562 #elif defined(CONFIG_MPC823)
563 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
564 #elif defined(CONFIG_ATMEL_LCD)
565 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
571 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
572 ushort colreg = bmp_logo_palette[i];
573 #ifdef CONFIG_ATMEL_LCD
575 #ifdef CONFIG_ATMEL_LCD_BGR555
576 lut_entry = ((colreg & 0x000F) << 11) |
577 ((colreg & 0x00F0) << 2) |
578 ((colreg & 0x0F00) >> 7);
579 #else /* CONFIG_ATMEL_LCD_RGB565 */
580 lut_entry = ((colreg & 0x000F) << 1) |
581 ((colreg & 0x00F0) << 3) |
582 ((colreg & 0x0F00) << 4);
584 *(cmap + BMP_LOGO_OFFSET) = lut_entry;
586 #else /* !CONFIG_ATMEL_LCD */
587 #ifdef CONFIG_SYS_INVERT_COLORS
588 *cmap++ = 0xffff - colreg;
592 #endif /* CONFIG_ATMEL_LCD */
597 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
598 memcpy (fb, bmap, BMP_LOGO_WIDTH);
599 bmap += BMP_LOGO_WIDTH;
600 fb += panel_info.vl_col;
603 else { /* true color mode */
604 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
605 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
606 for (j=0; j<BMP_LOGO_WIDTH; j++) {
607 fb16[j] = bmp_logo_palette[(bmap[j])];
609 bmap += BMP_LOGO_WIDTH;
610 fb16 += panel_info.vl_col;
616 #endif /* CONFIG_LCD_LOGO */
618 /*----------------------------------------------------------------------*/
619 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
621 * Display the BMP file located at address bmp_image.
624 int lcd_display_bitmap(ulong bmp_image, int x, int y)
626 #ifdef CONFIG_ATMEL_LCD
628 #elif !defined(CONFIG_MCC200)
633 bmp_image_t *bmp=(bmp_image_t *)bmp_image;
636 unsigned long width, height;
637 unsigned long pwidth = panel_info.vl_col;
638 unsigned colors,bpix;
639 unsigned long compression;
640 #if defined(CONFIG_PXA250)
641 struct pxafb_info *fbi = &panel_info.pxa;
642 #elif defined(CONFIG_MPC823)
643 volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
644 volatile cpm8xx_t *cp = &(immr->im_cpm);
647 if (!((bmp->header.signature[0]=='B') &&
648 (bmp->header.signature[1]=='M'))) {
649 printf ("Error: no valid bmp image at %lx\n", bmp_image);
653 width = le32_to_cpu (bmp->header.width);
654 height = le32_to_cpu (bmp->header.height);
655 colors = 1<<le16_to_cpu (bmp->header.bit_count);
656 compression = le32_to_cpu (bmp->header.compression);
658 bpix = NBITS(panel_info.vl_bpix);
660 if ((bpix != 1) && (bpix != 8)) {
661 printf ("Error: %d bit/pixel mode not supported by U-Boot\n",
666 if (bpix != le16_to_cpu(bmp->header.bit_count)) {
667 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
669 le16_to_cpu(bmp->header.bit_count));
673 debug ("Display-bmp: %d x %d with %d colors\n",
674 (int)width, (int)height, (int)colors);
676 #if !defined(CONFIG_MCC200)
677 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
679 #if defined(CONFIG_PXA250)
680 cmap = (ushort *)fbi->palette;
681 #elif defined(CONFIG_MPC823)
682 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
683 #elif defined(CONFIG_ATMEL_LCD)
684 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
686 # error "Don't know location of color map"
690 for (i=0; i<colors; ++i) {
691 bmp_color_table_entry_t cte = bmp->color_table[i];
692 #if !defined(CONFIG_ATMEL_LCD)
694 ( ((cte.red) << 8) & 0xf800) |
695 ( ((cte.green) << 3) & 0x07e0) |
696 ( ((cte.blue) >> 3) & 0x001f) ;
697 #ifdef CONFIG_SYS_INVERT_COLORS
698 *cmap = 0xffff - colreg;
702 #if defined(CONFIG_PXA250)
704 #elif defined(CONFIG_MPC823)
707 #else /* CONFIG_ATMEL_LCD */
708 lcd_setcolreg(i, cte.red, cte.green, cte.blue);
715 * BMP format for Monochrome assumes that the state of a
716 * pixel is described on a per Bit basis, not per Byte.
717 * So, in case of Monochrome BMP we should align widths
718 * on a byte boundary and convert them from Bit to Byte
720 * Probably, PXA250 and MPC823 process 1bpp BMP images in
721 * their own ways, so make the converting to be MCC200
724 #if defined(CONFIG_MCC200)
727 width = ((width + 7) & ~7) >> 3;
728 x = ((x + 7) & ~7) >> 3;
729 pwidth= ((pwidth + 7) & ~7) >> 3;
733 padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
734 if ((x + width)>pwidth)
736 if ((y + height)>panel_info.vl_row)
737 height = panel_info.vl_row - y;
739 bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
740 fb = (uchar *) (lcd_base +
741 (y + height - 1) * lcd_line_length + x);
742 for (i = 0; i < height; ++i) {
744 for (j = 0; j < width ; j++)
745 #if defined(CONFIG_PXA250) || defined(CONFIG_ATMEL_LCD)
747 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
748 *(fb++)=255-*(bmap++);
750 bmap += (width - padded_line);
751 fb -= (width + lcd_line_length);
758 #ifdef CONFIG_VIDEO_BMP_GZIP
759 extern bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp);
762 static void *lcd_logo (void)
764 #ifdef CONFIG_SPLASH_SCREEN
767 static int do_splash = 1;
769 if (do_splash && (s = getenv("splashimage")) != NULL) {
770 addr = simple_strtoul(s, NULL, 16);
773 #ifdef CONFIG_VIDEO_BMP_GZIP
774 bmp_image_t *bmp = (bmp_image_t *)addr;
777 if (!((bmp->header.signature[0]=='B') &&
778 (bmp->header.signature[1]=='M'))) {
779 addr = (ulong)gunzip_bmp(addr, &len);
783 if (lcd_display_bitmap (addr, 0, 0) == 0) {
784 return ((void *)lcd_base);
787 #endif /* CONFIG_SPLASH_SCREEN */
789 #ifdef CONFIG_LCD_LOGO
791 #endif /* CONFIG_LCD_LOGO */
793 #ifdef CONFIG_LCD_INFO
794 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
795 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
796 lcd_show_board_info();
797 #endif /* CONFIG_LCD_INFO */
799 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
800 return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
802 return ((void *)lcd_base);
803 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
806 /************************************************************************/
807 /************************************************************************/