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 /************************************************************************/
36 #include <linux/types.h>
38 #if defined(CONFIG_POST)
44 #if defined(CONFIG_PXA250)
45 #include <asm/byteorder.h>
48 #if defined(CONFIG_MPC823)
52 #if defined(CONFIG_ATMEL_LCD)
53 #include <atmel_lcdc.h>
56 /************************************************************************/
58 /************************************************************************/
59 #include <video_font.h> /* Get font data, width and height */
61 /************************************************************************/
63 /************************************************************************/
64 #ifdef CONFIG_LCD_LOGO
65 # include <bmp_logo.h> /* Get logo data, width and height */
66 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
67 # error Default Color Map overlaps with Logo Color Map
71 DECLARE_GLOBAL_DATA_PTR;
73 ulong lcd_setmem (ulong addr);
75 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
76 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
77 static inline void lcd_putc_xy (ushort x, ushort y, uchar c);
79 static int lcd_init (void *lcdbase);
81 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
82 extern void lcd_ctrl_init (void *lcdbase);
83 extern void lcd_enable (void);
84 static void *lcd_logo (void);
87 #if LCD_BPP == LCD_COLOR8
88 extern void lcd_setcolreg (ushort regno,
89 ushort red, ushort green, ushort blue);
91 #if LCD_BPP == LCD_MONOCHROME
92 extern void lcd_initcolregs (void);
95 static int lcd_getbgcolor (void);
96 static void lcd_setfgcolor (int color);
97 static void lcd_setbgcolor (int color);
99 char lcd_is_enabled = 0;
100 extern vidinfo_t panel_info;
102 #ifdef NOT_USED_SO_FAR
103 static void lcd_getcolreg (ushort regno,
104 ushort *red, ushort *green, ushort *blue);
105 static int lcd_getfgcolor (void);
106 #endif /* NOT_USED_SO_FAR */
108 /************************************************************************/
110 /*----------------------------------------------------------------------*/
112 static void console_scrollup (void)
115 /* Copy up rows ignoring the first one */
116 memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
118 /* Clear the last one */
119 memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
122 * Poor attempt to optimize speed by moving "long"s.
123 * But the code is ugly, and not a bit faster :-(
125 ulong *t = (ulong *)CONSOLE_ROW_FIRST;
126 ulong *s = (ulong *)CONSOLE_ROW_SECOND;
127 ulong l = CONSOLE_SCROLL_SIZE / sizeof(ulong);
128 uchar c = lcd_color_bg & 0xFF;
129 ulong val= (c<<24) | (c<<16) | (c<<8) | c;
134 t = (ulong *)CONSOLE_ROW_LAST;
135 l = CONSOLE_ROW_SIZE / sizeof(ulong);
142 /*----------------------------------------------------------------------*/
144 static inline void console_back (void)
146 if (--console_col < 0) {
147 console_col = CONSOLE_COLS-1 ;
148 if (--console_row < 0) {
153 lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
154 console_row * VIDEO_FONT_HEIGHT,
158 /*----------------------------------------------------------------------*/
160 static inline void console_newline (void)
165 /* Check if we need to scroll the terminal */
166 if (console_row >= CONSOLE_ROWS) {
167 /* Scroll everything up */
168 console_scrollup () ;
173 /*----------------------------------------------------------------------*/
175 void lcd_putc (const char c)
177 if (!lcd_is_enabled) {
183 case '\r': console_col = 0;
186 case '\n': console_newline();
189 case '\t': /* Tab (8 chars alignment) */
193 if (console_col >= CONSOLE_COLS) {
198 case '\b': console_back();
201 default: lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
202 console_row * VIDEO_FONT_HEIGHT,
204 if (++console_col >= CONSOLE_COLS) {
212 /*----------------------------------------------------------------------*/
214 void lcd_puts (const char *s)
216 if (!lcd_is_enabled) {
226 /*----------------------------------------------------------------------*/
228 void lcd_printf(const char *fmt, ...)
231 char buf[CONFIG_SYS_PBSIZE];
234 vsprintf(buf, fmt, args);
240 /************************************************************************/
241 /* ** Low-Level Graphics Routines */
242 /************************************************************************/
244 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
249 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
250 off = x * (1 << LCD_BPP) % 8;
252 for (row=0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
257 #if LCD_BPP == LCD_MONOCHROME
258 uchar rest = *d & -(1 << (8-off));
261 for (i=0; i<count; ++i) {
265 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
267 #if LCD_BPP == LCD_MONOCHROME
268 sym = (COLOR_MASK(lcd_color_fg) & bits) |
269 (COLOR_MASK(lcd_color_bg) & ~bits);
271 *d++ = rest | (sym >> off);
272 rest = sym << (8-off);
273 #elif LCD_BPP == LCD_COLOR8
274 for (c=0; c<8; ++c) {
275 *d++ = (bits & 0x80) ?
276 lcd_color_fg : lcd_color_bg;
279 #elif LCD_BPP == LCD_COLOR16
280 for (c=0; c<16; ++c) {
281 *d++ = (bits & 0x80) ?
282 lcd_color_fg : lcd_color_bg;
287 #if LCD_BPP == LCD_MONOCHROME
288 *d = rest | (*d & ((1 << (8-off)) - 1));
293 /*----------------------------------------------------------------------*/
295 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
297 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
298 lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
300 lcd_drawchars (x, y, s, strlen ((char *)s));
304 /*----------------------------------------------------------------------*/
306 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
308 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
309 lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
311 lcd_drawchars (x, y, &c, 1);
315 /************************************************************************/
316 /** Small utility to check that you got the colours right */
317 /************************************************************************/
318 #ifdef LCD_TEST_PATTERN
323 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
324 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
325 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
328 static void test_pattern (void)
330 ushort v_max = panel_info.vl_row;
331 ushort h_max = panel_info.vl_col;
332 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
333 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
335 uchar *pix = (uchar *)lcd_base;
337 printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
338 h_max, v_max, h_step, v_step);
340 /* WARNING: Code silently assumes 8bit/pixel */
341 for (v=0; v<v_max; ++v) {
342 uchar iy = v / v_step;
343 for (h=0; h<h_max; ++h) {
344 uchar ix = N_BLK_HOR * iy + (h/h_step);
345 *pix++ = test_colors[ix];
349 #endif /* LCD_TEST_PATTERN */
352 /************************************************************************/
353 /* ** GENERIC Initialization Routines */
354 /************************************************************************/
356 int drv_lcd_init (void)
361 lcd_base = (void *)(gd->fb_base);
363 lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
365 lcd_init (lcd_base); /* LCD initialization */
367 /* Device initialization */
368 memset (&lcddev, 0, sizeof (lcddev));
370 strcpy (lcddev.name, "lcd");
371 lcddev.ext = 0; /* No extensions */
372 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
373 lcddev.putc = lcd_putc; /* 'putc' function */
374 lcddev.puts = lcd_puts; /* 'puts' function */
376 rc = device_register (&lcddev);
378 return (rc == 0) ? 1 : rc;
381 /*----------------------------------------------------------------------*/
382 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
384 #if LCD_BPP == LCD_MONOCHROME
385 /* Setting the palette */
388 #elif LCD_BPP == LCD_COLOR8
389 /* Setting the palette */
390 lcd_setcolreg (CONSOLE_COLOR_BLACK, 0, 0, 0);
391 lcd_setcolreg (CONSOLE_COLOR_RED, 0xFF, 0, 0);
392 lcd_setcolreg (CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
393 lcd_setcolreg (CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
394 lcd_setcolreg (CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
395 lcd_setcolreg (CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
396 lcd_setcolreg (CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
397 lcd_setcolreg (CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
398 lcd_setcolreg (CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
401 #ifndef CONFIG_SYS_WHITE_ON_BLACK
402 lcd_setfgcolor (CONSOLE_COLOR_BLACK);
403 lcd_setbgcolor (CONSOLE_COLOR_WHITE);
405 lcd_setfgcolor (CONSOLE_COLOR_WHITE);
406 lcd_setbgcolor (CONSOLE_COLOR_BLACK);
407 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
409 #ifdef LCD_TEST_PATTERN
412 /* set framebuffer to background color */
413 memset ((char *)lcd_base,
414 COLOR_MASK(lcd_getbgcolor()),
415 lcd_line_length*panel_info.vl_row);
417 /* Paint the logo and retrieve LCD base address */
418 debug ("[LCD] Drawing the logo...\n");
419 lcd_console_address = lcd_logo ();
428 cls, 1, 1, lcd_clear,
433 /*----------------------------------------------------------------------*/
435 static int lcd_init (void *lcdbase)
437 /* Initialize the lcd controller */
438 debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
440 lcd_ctrl_init (lcdbase);
442 lcd_clear (NULL, 1, 1, NULL); /* dummy args */
445 /* Initialize the console */
447 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
448 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
450 console_row = 1; /* leave 1 blank line below logo */
457 /************************************************************************/
458 /* ** ROM capable initialization part - needed to reserve FB memory */
459 /************************************************************************/
461 * This is called early in the system initialization to grab memory
462 * for the LCD controller.
463 * Returns new address for monitor, after reserving LCD buffer memory
465 * Note that this is running from ROM, so no write access to global data.
467 ulong lcd_setmem (ulong addr)
470 int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
472 debug ("LCD panel info: %d x %d, %d bit/pix\n",
473 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
475 size = line_length * panel_info.vl_row;
477 /* Round up to nearest full page */
478 size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
480 /* Allocate pages for the frame buffer. */
483 debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
488 /*----------------------------------------------------------------------*/
490 static void lcd_setfgcolor (int color)
492 #ifdef CONFIG_ATMEL_LCD
493 lcd_color_fg = color;
495 lcd_color_fg = color & 0x0F;
499 /*----------------------------------------------------------------------*/
501 static void lcd_setbgcolor (int color)
503 #ifdef CONFIG_ATMEL_LCD
504 lcd_color_bg = color;
506 lcd_color_bg = color & 0x0F;
510 /*----------------------------------------------------------------------*/
512 #ifdef NOT_USED_SO_FAR
513 static int lcd_getfgcolor (void)
517 #endif /* NOT_USED_SO_FAR */
519 /*----------------------------------------------------------------------*/
521 static int lcd_getbgcolor (void)
526 /*----------------------------------------------------------------------*/
528 /************************************************************************/
529 /* ** Chipset depending Bitmap / Logo stuff... */
530 /************************************************************************/
531 #ifdef CONFIG_LCD_LOGO
532 void bitmap_plot (int x, int y)
534 #ifdef CONFIG_ATMEL_LCD
543 #if defined(CONFIG_PXA250)
544 struct pxafb_info *fbi = &panel_info.pxa;
545 #elif defined(CONFIG_MPC823)
546 volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
547 volatile cpm8xx_t *cp = &(immr->im_cpm);
550 debug ("Logo: width %d height %d colors %d cmap %d\n",
551 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
552 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
554 bmap = &bmp_logo_bitmap[0];
555 fb = (uchar *)(lcd_base + y * lcd_line_length + x);
557 if (NBITS(panel_info.vl_bpix) < 12) {
558 /* Leave room for default color map */
559 #if defined(CONFIG_PXA250)
560 cmap = (ushort *)fbi->palette;
561 #elif defined(CONFIG_MPC823)
562 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
563 #elif defined(CONFIG_ATMEL_LCD)
564 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
570 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
571 ushort colreg = bmp_logo_palette[i];
572 #ifdef CONFIG_ATMEL_LCD
574 #ifdef CONFIG_ATMEL_LCD_BGR555
575 lut_entry = ((colreg & 0x000F) << 11) |
576 ((colreg & 0x00F0) << 2) |
577 ((colreg & 0x0F00) >> 7);
578 #else /* CONFIG_ATMEL_LCD_RGB565 */
579 lut_entry = ((colreg & 0x000F) << 1) |
580 ((colreg & 0x00F0) << 3) |
581 ((colreg & 0x0F00) << 4);
583 *(cmap + BMP_LOGO_OFFSET) = lut_entry;
585 #else /* !CONFIG_ATMEL_LCD */
586 #ifdef CONFIG_SYS_INVERT_COLORS
587 *cmap++ = 0xffff - colreg;
591 #endif /* CONFIG_ATMEL_LCD */
596 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
597 memcpy (fb, bmap, BMP_LOGO_WIDTH);
598 bmap += BMP_LOGO_WIDTH;
599 fb += panel_info.vl_col;
602 else { /* true color mode */
603 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
604 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
605 for (j=0; j<BMP_LOGO_WIDTH; j++) {
606 fb16[j] = bmp_logo_palette[(bmap[j])];
608 bmap += BMP_LOGO_WIDTH;
609 fb16 += panel_info.vl_col;
615 #endif /* CONFIG_LCD_LOGO */
617 /*----------------------------------------------------------------------*/
618 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
620 * Display the BMP file located at address bmp_image.
623 int lcd_display_bitmap(ulong bmp_image, int x, int y)
625 #ifdef CONFIG_ATMEL_LCD
627 #elif !defined(CONFIG_MCC200)
632 bmp_image_t *bmp=(bmp_image_t *)bmp_image;
635 unsigned long width, height;
636 unsigned long pwidth = panel_info.vl_col;
637 unsigned colors,bpix;
638 unsigned long compression;
639 #if defined(CONFIG_PXA250)
640 struct pxafb_info *fbi = &panel_info.pxa;
641 #elif defined(CONFIG_MPC823)
642 volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
643 volatile cpm8xx_t *cp = &(immr->im_cpm);
646 if (!((bmp->header.signature[0]=='B') &&
647 (bmp->header.signature[1]=='M'))) {
648 printf ("Error: no valid bmp image at %lx\n", bmp_image);
652 width = le32_to_cpu (bmp->header.width);
653 height = le32_to_cpu (bmp->header.height);
654 colors = 1<<le16_to_cpu (bmp->header.bit_count);
655 compression = le32_to_cpu (bmp->header.compression);
657 bpix = NBITS(panel_info.vl_bpix);
659 if ((bpix != 1) && (bpix != 8)) {
660 printf ("Error: %d bit/pixel mode not supported by U-Boot\n",
665 if (bpix != le16_to_cpu(bmp->header.bit_count)) {
666 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
668 le16_to_cpu(bmp->header.bit_count));
672 debug ("Display-bmp: %d x %d with %d colors\n",
673 (int)width, (int)height, (int)colors);
675 #if !defined(CONFIG_MCC200)
676 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
678 #if defined(CONFIG_PXA250)
679 cmap = (ushort *)fbi->palette;
680 #elif defined(CONFIG_MPC823)
681 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
682 #elif defined(CONFIG_ATMEL_LCD)
683 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
685 # error "Don't know location of color map"
689 for (i=0; i<colors; ++i) {
690 bmp_color_table_entry_t cte = bmp->color_table[i];
691 #if !defined(CONFIG_ATMEL_LCD)
693 ( ((cte.red) << 8) & 0xf800) |
694 ( ((cte.green) << 3) & 0x07e0) |
695 ( ((cte.blue) >> 3) & 0x001f) ;
696 #ifdef CONFIG_SYS_INVERT_COLORS
697 *cmap = 0xffff - colreg;
701 #if defined(CONFIG_PXA250)
703 #elif defined(CONFIG_MPC823)
706 #else /* CONFIG_ATMEL_LCD */
707 lcd_setcolreg(i, cte.red, cte.green, cte.blue);
714 * BMP format for Monochrome assumes that the state of a
715 * pixel is described on a per Bit basis, not per Byte.
716 * So, in case of Monochrome BMP we should align widths
717 * on a byte boundary and convert them from Bit to Byte
719 * Probably, PXA250 and MPC823 process 1bpp BMP images in
720 * their own ways, so make the converting to be MCC200
723 #if defined(CONFIG_MCC200)
726 width = ((width + 7) & ~7) >> 3;
727 x = ((x + 7) & ~7) >> 3;
728 pwidth= ((pwidth + 7) & ~7) >> 3;
732 padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
733 if ((x + width)>pwidth)
735 if ((y + height)>panel_info.vl_row)
736 height = panel_info.vl_row - y;
738 bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
739 fb = (uchar *) (lcd_base +
740 (y + height - 1) * lcd_line_length + x);
741 for (i = 0; i < height; ++i) {
743 for (j = 0; j < width ; j++)
744 #if defined(CONFIG_PXA250) || defined(CONFIG_ATMEL_LCD)
746 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
747 *(fb++)=255-*(bmap++);
749 bmap += (width - padded_line);
750 fb -= (width + lcd_line_length);
757 #ifdef CONFIG_VIDEO_BMP_GZIP
758 extern bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp);
761 static void *lcd_logo (void)
763 #ifdef CONFIG_SPLASH_SCREEN
766 static int do_splash = 1;
768 if (do_splash && (s = getenv("splashimage")) != NULL) {
769 addr = simple_strtoul(s, NULL, 16);
772 #ifdef CONFIG_VIDEO_BMP_GZIP
773 bmp_image_t *bmp = (bmp_image_t *)addr;
776 if (!((bmp->header.signature[0]=='B') &&
777 (bmp->header.signature[1]=='M'))) {
778 addr = (ulong)gunzip_bmp(addr, &len);
782 if (lcd_display_bitmap (addr, 0, 0) == 0) {
783 return ((void *)lcd_base);
786 #endif /* CONFIG_SPLASH_SCREEN */
788 #ifdef CONFIG_LCD_LOGO
790 #endif /* CONFIG_LCD_LOGO */
792 #ifdef CONFIG_LCD_INFO
793 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
794 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
795 lcd_show_board_info();
796 #endif /* CONFIG_LCD_INFO */
798 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
799 return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
801 return ((void *)lcd_base);
802 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
805 /************************************************************************/
806 /************************************************************************/