1 /*
2 * Common LCD routines for supported CPUs
3 *
4 * (C) Copyright 2001-2002
5 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
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.
14 *
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.
19 *
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,
23 * MA 02111-1307 USA
24 */
26 /************************************************************************/
27 /* ** HEADER FILES */
28 /************************************************************************/
30 /* #define DEBUG */
32 #include <config.h>
33 #include <common.h>
34 #include <command.h>
35 #include <stdarg.h>
36 #include <linux/types.h>
37 #include <stdio_dev.h>
38 #if defined(CONFIG_POST)
39 #include <post.h>
40 #endif
41 #include <lcd.h>
42 #include <watchdog.h>
44 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
45 defined(CONFIG_CPU_MONAHANS)
46 #define CONFIG_CPU_PXA
47 #include <asm/byteorder.h>
48 #endif
50 #if defined(CONFIG_MPC823)
51 #include <lcdvideo.h>
52 #endif
54 #if defined(CONFIG_ATMEL_LCD)
55 #include <atmel_lcdc.h>
56 #endif
58 /************************************************************************/
59 /* ** FONT DATA */
60 /************************************************************************/
61 #include <video_font.h> /* Get font data, width and height */
62 #include <video_font_data.h>
64 /************************************************************************/
65 /* ** LOGO DATA */
66 /************************************************************************/
67 #ifdef CONFIG_LCD_LOGO
68 # include <bmp_logo.h> /* Get logo data, width and height */
69 # include <bmp_logo_data.h>
70 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
71 # error Default Color Map overlaps with Logo Color Map
72 # endif
73 #endif
75 DECLARE_GLOBAL_DATA_PTR;
77 ulong lcd_setmem (ulong addr);
79 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
80 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
81 static inline void lcd_putc_xy(ushort x, ushort y, uchar c);
83 static int lcd_init(void *lcdbase);
85 static void *lcd_logo (void);
87 static int lcd_getbgcolor(void);
88 static void lcd_setfgcolor(int color);
89 static void lcd_setbgcolor(int color);
91 char lcd_is_enabled = 0;
93 #ifdef NOT_USED_SO_FAR
94 static void lcd_getcolreg(ushort regno,
95 ushort *red, ushort *green, ushort *blue);
96 static int lcd_getfgcolor(void);
97 #endif /* NOT_USED_SO_FAR */
99 /************************************************************************/
101 /*----------------------------------------------------------------------*/
103 static void console_scrollup(void)
104 {
105 /* Copy up rows ignoring the first one */
106 memcpy(CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
108 /* Clear the last one */
109 memset(CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
110 }
112 /*----------------------------------------------------------------------*/
114 static inline void console_back(void)
115 {
116 if (--console_col < 0) {
117 console_col = CONSOLE_COLS-1 ;
118 if (--console_row < 0) {
119 console_row = 0;
120 }
121 }
123 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
124 console_row * VIDEO_FONT_HEIGHT, ' ');
125 }
127 /*----------------------------------------------------------------------*/
129 static inline void console_newline(void)
130 {
131 ++console_row;
132 console_col = 0;
134 /* Check if we need to scroll the terminal */
135 if (console_row >= CONSOLE_ROWS) {
136 /* Scroll everything up */
137 console_scrollup();
138 --console_row;
139 }
140 }
142 /*----------------------------------------------------------------------*/
144 void lcd_putc(const char c)
145 {
146 if (!lcd_is_enabled) {
147 serial_putc(c);
149 return;
150 }
152 switch (c) {
153 case '\r':
154 console_col = 0;
156 return;
157 case '\n':
158 console_newline();
160 return;
161 case '\t': /* Tab (8 chars alignment) */
162 console_col += 8;
163 console_col &= ~7;
165 if (console_col >= CONSOLE_COLS)
166 console_newline();
168 return;
169 case '\b':
170 console_back();
172 return;
173 default:
174 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
175 console_row * VIDEO_FONT_HEIGHT, c);
176 if (++console_col >= CONSOLE_COLS)
177 console_newline();
178 }
179 }
181 /*----------------------------------------------------------------------*/
183 void lcd_puts(const char *s)
184 {
185 if (!lcd_is_enabled) {
186 serial_puts(s);
188 return;
189 }
191 while (*s) {
192 lcd_putc(*s++);
193 }
194 }
196 /*----------------------------------------------------------------------*/
198 void lcd_printf(const char *fmt, ...)
199 {
200 va_list args;
201 char buf[CONFIG_SYS_PBSIZE];
203 va_start(args, fmt);
204 vsprintf(buf, fmt, args);
205 va_end(args);
207 lcd_puts(buf);
208 }
210 /************************************************************************/
211 /* ** Low-Level Graphics Routines */
212 /************************************************************************/
214 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
215 {
216 uchar *dest;
217 ushort row;
219 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
220 y += BMP_LOGO_HEIGHT;
221 #endif
223 #if LCD_BPP == LCD_MONOCHROME
224 ushort off = x * (1 << LCD_BPP) % 8;
225 #endif
227 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
229 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
230 uchar *s = str;
231 int i;
232 #if LCD_BPP == LCD_COLOR16
233 ushort *d = (ushort *)dest;
234 #else
235 uchar *d = dest;
236 #endif
238 #if LCD_BPP == LCD_MONOCHROME
239 uchar rest = *d & -(1 << (8-off));
240 uchar sym;
241 #endif
242 for (i = 0; i < count; ++i) {
243 uchar c, bits;
245 c = *s++;
246 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
248 #if LCD_BPP == LCD_MONOCHROME
249 sym = (COLOR_MASK(lcd_color_fg) & bits) |
250 (COLOR_MASK(lcd_color_bg) & ~bits);
252 *d++ = rest | (sym >> off);
253 rest = sym << (8-off);
254 #elif LCD_BPP == LCD_COLOR8
255 for (c = 0; c < 8; ++c) {
256 *d++ = (bits & 0x80) ?
257 lcd_color_fg : lcd_color_bg;
258 bits <<= 1;
259 }
260 #elif LCD_BPP == LCD_COLOR16
261 for (c = 0; c < 8; ++c) {
262 *d++ = (bits & 0x80) ?
263 lcd_color_fg : lcd_color_bg;
264 bits <<= 1;
265 }
266 #endif
267 }
268 #if LCD_BPP == LCD_MONOCHROME
269 *d = rest | (*d & ((1 << (8-off)) - 1));
270 #endif
271 }
272 }
274 /*----------------------------------------------------------------------*/
276 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
277 {
278 lcd_drawchars(x, y, s, strlen((char *)s));
279 }
281 /*----------------------------------------------------------------------*/
283 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
284 {
285 lcd_drawchars(x, y, &c, 1);
286 }
288 /************************************************************************/
289 /** Small utility to check that you got the colours right */
290 /************************************************************************/
291 #ifdef LCD_TEST_PATTERN
293 #define N_BLK_VERT 2
294 #define N_BLK_HOR 3
296 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
297 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
298 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
299 };
301 static void test_pattern(void)
302 {
303 ushort v_max = panel_info.vl_row;
304 ushort h_max = panel_info.vl_col;
305 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
306 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
307 ushort v, h;
308 uchar *pix = (uchar *)lcd_base;
310 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
311 h_max, v_max, h_step, v_step);
313 /* WARNING: Code silently assumes 8bit/pixel */
314 for (v = 0; v < v_max; ++v) {
315 uchar iy = v / v_step;
316 for (h = 0; h < h_max; ++h) {
317 uchar ix = N_BLK_HOR * iy + (h/h_step);
318 *pix++ = test_colors[ix];
319 }
320 }
321 }
322 #endif /* LCD_TEST_PATTERN */
325 /************************************************************************/
326 /* ** GENERIC Initialization Routines */
327 /************************************************************************/
329 int drv_lcd_init (void)
330 {
331 struct stdio_dev lcddev;
332 int rc;
334 lcd_base = (void *)(gd->fb_base);
336 lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
338 lcd_init(lcd_base); /* LCD initialization */
340 /* Device initialization */
341 memset(&lcddev, 0, sizeof(lcddev));
343 strcpy(lcddev.name, "lcd");
344 lcddev.ext = 0; /* No extensions */
345 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
346 lcddev.putc = lcd_putc; /* 'putc' function */
347 lcddev.puts = lcd_puts; /* 'puts' function */
349 rc = stdio_register (&lcddev);
351 return (rc == 0) ? 1 : rc;
352 }
354 /*----------------------------------------------------------------------*/
355 static
356 int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
357 {
358 lcd_clear();
359 return 0;
360 }
362 void lcd_clear(void)
363 {
364 #if LCD_BPP == LCD_MONOCHROME
365 /* Setting the palette */
366 lcd_initcolregs();
368 #elif LCD_BPP == LCD_COLOR8
369 /* Setting the palette */
370 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
371 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
372 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
373 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
374 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
375 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
376 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
377 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
378 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
379 #endif
381 #ifndef CONFIG_SYS_WHITE_ON_BLACK
382 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
383 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
384 #else
385 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
386 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
387 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
389 #ifdef LCD_TEST_PATTERN
390 test_pattern();
391 #else
392 /* set framebuffer to background color */
393 memset((char *)lcd_base,
394 COLOR_MASK(lcd_getbgcolor()),
395 lcd_line_length*panel_info.vl_row);
396 #endif
397 /* Paint the logo and retrieve LCD base address */
398 debug("[LCD] Drawing the logo...\n");
399 lcd_console_address = lcd_logo ();
401 console_col = 0;
402 console_row = 0;
403 }
405 U_BOOT_CMD(
406 cls, 1, 1, do_lcd_clear,
407 "clear screen",
408 ""
409 );
411 /*----------------------------------------------------------------------*/
413 static int lcd_init(void *lcdbase)
414 {
415 /* Initialize the lcd controller */
416 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
418 lcd_ctrl_init(lcdbase);
419 lcd_is_enabled = 1;
420 lcd_clear();
421 lcd_enable ();
423 /* Initialize the console */
424 console_col = 0;
425 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
426 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
427 #else
428 console_row = 1; /* leave 1 blank line below logo */
429 #endif
431 return 0;
432 }
435 /************************************************************************/
436 /* ** ROM capable initialization part - needed to reserve FB memory */
437 /************************************************************************/
438 /*
439 * This is called early in the system initialization to grab memory
440 * for the LCD controller.
441 * Returns new address for monitor, after reserving LCD buffer memory
442 *
443 * Note that this is running from ROM, so no write access to global data.
444 */
445 ulong lcd_setmem(ulong addr)
446 {
447 ulong size;
448 int line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
450 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
451 panel_info.vl_row, NBITS(panel_info.vl_bpix));
453 size = line_length * panel_info.vl_row;
455 /* Round up to nearest full page */
456 size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
458 /* Allocate pages for the frame buffer. */
459 addr -= size;
461 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
463 return addr;
464 }
466 /*----------------------------------------------------------------------*/
468 static void lcd_setfgcolor(int color)
469 {
470 lcd_color_fg = color;
471 }
473 /*----------------------------------------------------------------------*/
475 static void lcd_setbgcolor(int color)
476 {
477 lcd_color_bg = color;
478 }
480 /*----------------------------------------------------------------------*/
482 #ifdef NOT_USED_SO_FAR
483 static int lcd_getfgcolor(void)
484 {
485 return lcd_color_fg;
486 }
487 #endif /* NOT_USED_SO_FAR */
489 /*----------------------------------------------------------------------*/
491 static int lcd_getbgcolor(void)
492 {
493 return lcd_color_bg;
494 }
496 /*----------------------------------------------------------------------*/
498 /************************************************************************/
499 /* ** Chipset depending Bitmap / Logo stuff... */
500 /************************************************************************/
501 static inline ushort *configuration_get_cmap(void)
502 {
503 #if defined CONFIG_CPU_PXA
504 struct pxafb_info *fbi = &panel_info.pxa;
505 return (ushort *)fbi->palette;
506 #elif defined(CONFIG_MPC823)
507 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
508 cpm8xx_t *cp = &(immr->im_cpm);
509 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
510 #elif defined(CONFIG_ATMEL_LCD)
511 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
512 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
513 return panel_info.cmap;
514 #else
515 #if defined(CONFIG_LCD_LOGO)
516 return bmp_logo_palette;
517 #else
518 return NULL;
519 #endif
520 #endif
521 }
523 #ifdef CONFIG_LCD_LOGO
524 void bitmap_plot(int x, int y)
525 {
526 #ifdef CONFIG_ATMEL_LCD
527 uint *cmap = (uint *)bmp_logo_palette;
528 #else
529 ushort *cmap = (ushort *)bmp_logo_palette;
530 #endif
531 ushort i, j;
532 uchar *bmap;
533 uchar *fb;
534 ushort *fb16;
535 #if defined(CONFIG_MPC823)
536 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
537 cpm8xx_t *cp = &(immr->im_cpm);
538 #endif
540 debug("Logo: width %d height %d colors %d cmap %d\n",
541 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
542 ARRAY_SIZE(bmp_logo_palette));
544 bmap = &bmp_logo_bitmap[0];
545 fb = (uchar *)(lcd_base + y * lcd_line_length + x);
547 if (NBITS(panel_info.vl_bpix) < 12) {
548 /* Leave room for default color map
549 * default case: generic system with no cmap (most likely 16bpp)
550 * cmap was set to the source palette, so no change is done.
551 * This avoids even more ifdefs in the next stanza
552 */
553 #if defined(CONFIG_MPC823)
554 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
555 #elif defined(CONFIG_ATMEL_LCD)
556 cmap = (uint *)configuration_get_cmap();
557 #else
558 cmap = configuration_get_cmap();
559 #endif
561 WATCHDOG_RESET();
563 /* Set color map */
564 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
565 ushort colreg = bmp_logo_palette[i];
566 #ifdef CONFIG_ATMEL_LCD
567 uint lut_entry;
568 #ifdef CONFIG_ATMEL_LCD_BGR555
569 lut_entry = ((colreg & 0x000F) << 11) |
570 ((colreg & 0x00F0) << 2) |
571 ((colreg & 0x0F00) >> 7);
572 #else /* CONFIG_ATMEL_LCD_RGB565 */
573 lut_entry = ((colreg & 0x000F) << 1) |
574 ((colreg & 0x00F0) << 3) |
575 ((colreg & 0x0F00) << 4);
576 #endif
577 *(cmap + BMP_LOGO_OFFSET) = lut_entry;
578 cmap++;
579 #else /* !CONFIG_ATMEL_LCD */
580 #ifdef CONFIG_SYS_INVERT_COLORS
581 *cmap++ = 0xffff - colreg;
582 #else
583 *cmap++ = colreg;
584 #endif
585 #endif /* CONFIG_ATMEL_LCD */
586 }
588 WATCHDOG_RESET();
590 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
591 memcpy(fb, bmap, BMP_LOGO_WIDTH);
592 bmap += BMP_LOGO_WIDTH;
593 fb += panel_info.vl_col;
594 }
595 }
596 else { /* true color mode */
597 u16 col16;
598 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
599 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
600 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
601 col16 = bmp_logo_palette[(bmap[j]-16)];
602 fb16[j] =
603 ((col16 & 0x000F) << 1) |
604 ((col16 & 0x00F0) << 3) |
605 ((col16 & 0x0F00) << 4);
606 }
607 bmap += BMP_LOGO_WIDTH;
608 fb16 += panel_info.vl_col;
609 }
610 }
612 WATCHDOG_RESET();
613 }
614 #else
615 static inline void bitmap_plot(int x, int y) {}
616 #endif /* CONFIG_LCD_LOGO */
618 /*----------------------------------------------------------------------*/
619 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
620 /*
621 * Display the BMP file located at address bmp_image.
622 * Only uncompressed.
623 */
625 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
626 #define BMP_ALIGN_CENTER 0x7FFF
628 static void splash_align_axis(int *axis, unsigned long panel_size,
629 unsigned long picture_size)
630 {
631 unsigned long panel_picture_delta = panel_size - picture_size;
632 unsigned long axis_alignment;
634 if (*axis == BMP_ALIGN_CENTER)
635 axis_alignment = panel_picture_delta / 2;
636 else if (*axis < 0)
637 axis_alignment = panel_picture_delta + *axis + 1;
638 else
639 return;
641 *axis = max(0, axis_alignment);
642 }
643 #endif
646 #ifdef CONFIG_LCD_BMP_RLE8
648 #define BMP_RLE8_ESCAPE 0
649 #define BMP_RLE8_EOL 0
650 #define BMP_RLE8_EOBMP 1
651 #define BMP_RLE8_DELTA 2
653 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
654 int cnt)
655 {
656 while (cnt > 0) {
657 *(*fbp)++ = cmap[*bmap++];
658 cnt--;
659 }
660 }
662 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
663 {
664 ushort *fb = *fbp;
665 int cnt_8copy = cnt >> 3;
667 cnt -= cnt_8copy << 3;
668 while (cnt_8copy > 0) {
669 *fb++ = c;
670 *fb++ = c;
671 *fb++ = c;
672 *fb++ = c;
673 *fb++ = c;
674 *fb++ = c;
675 *fb++ = c;
676 *fb++ = c;
677 cnt_8copy--;
678 }
679 while (cnt > 0) {
680 *fb++ = c;
681 cnt--;
682 }
683 (*fbp) = fb;
684 }
686 /*
687 * Do not call this function directly, must be called from
688 * lcd_display_bitmap.
689 */
690 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
691 int x_off, int y_off)
692 {
693 uchar *bmap;
694 ulong width, height;
695 ulong cnt, runlen;
696 int x, y;
697 int decode = 1;
699 width = le32_to_cpu(bmp->header.width);
700 height = le32_to_cpu(bmp->header.height);
701 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
703 x = 0;
704 y = height - 1;
706 while (decode) {
707 if (bmap[0] == BMP_RLE8_ESCAPE) {
708 switch (bmap[1]) {
709 case BMP_RLE8_EOL:
710 /* end of line */
711 bmap += 2;
712 x = 0;
713 y--;
714 /* 16bpix, 2-byte per pixel, width should *2 */
715 fb -= (width * 2 + lcd_line_length);
716 break;
717 case BMP_RLE8_EOBMP:
718 /* end of bitmap */
719 decode = 0;
720 break;
721 case BMP_RLE8_DELTA:
722 /* delta run */
723 x += bmap[2];
724 y -= bmap[3];
725 /* 16bpix, 2-byte per pixel, x should *2 */
726 fb = (uchar *) (lcd_base + (y + y_off - 1)
727 * lcd_line_length + (x + x_off) * 2);
728 bmap += 4;
729 break;
730 default:
731 /* unencoded run */
732 runlen = bmap[1];
733 bmap += 2;
734 if (y < height) {
735 if (x < width) {
736 if (x + runlen > width)
737 cnt = width - x;
738 else
739 cnt = runlen;
740 draw_unencoded_bitmap(
741 (ushort **)&fb,
742 bmap, cmap, cnt);
743 }
744 x += runlen;
745 }
746 bmap += runlen;
747 if (runlen & 1)
748 bmap++;
749 }
750 } else {
751 /* encoded run */
752 if (y < height) {
753 runlen = bmap[0];
754 if (x < width) {
755 /* aggregate the same code */
756 while (bmap[0] == 0xff &&
757 bmap[2] != BMP_RLE8_ESCAPE &&
758 bmap[1] == bmap[3]) {
759 runlen += bmap[2];
760 bmap += 2;
761 }
762 if (x + runlen > width)
763 cnt = width - x;
764 else
765 cnt = runlen;
766 draw_encoded_bitmap((ushort **)&fb,
767 cmap[bmap[1]], cnt);
768 }
769 x += runlen;
770 }
771 bmap += 2;
772 }
773 }
774 }
775 #endif
777 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
778 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
779 #else
780 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
781 #endif
783 #if defined(CONFIG_BMP_16BPP)
784 #if defined(CONFIG_ATMEL_LCD_BGR555)
785 static inline void fb_put_word(uchar **fb, uchar **from)
786 {
787 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
788 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
789 *from += 2;
790 }
791 #else
792 static inline void fb_put_word(uchar **fb, uchar **from)
793 {
794 *(*fb)++ = *(*from)++;
795 *(*fb)++ = *(*from)++;
796 }
797 #endif
798 #endif /* CONFIG_BMP_16BPP */
800 int lcd_display_bitmap(ulong bmp_image, int x, int y)
801 {
802 #if !defined(CONFIG_MCC200)
803 ushort *cmap = NULL;
804 #endif
805 ushort *cmap_base = NULL;
806 ushort i, j;
807 uchar *fb;
808 bmp_image_t *bmp=(bmp_image_t *)bmp_image;
809 uchar *bmap;
810 ushort padded_width;
811 unsigned long width, height, byte_width;
812 unsigned long pwidth = panel_info.vl_col;
813 unsigned colors, bpix, bmp_bpix;
815 if (!bmp || !((bmp->header.signature[0] == 'B') &&
816 (bmp->header.signature[1] == 'M'))) {
817 printf("Error: no valid bmp image at %lx\n", bmp_image);
819 return 1;
820 }
822 width = le32_to_cpu(bmp->header.width);
823 height = le32_to_cpu(bmp->header.height);
824 bmp_bpix = le16_to_cpu(bmp->header.bit_count);
825 colors = 1 << bmp_bpix;
827 bpix = NBITS(panel_info.vl_bpix);
829 if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
830 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
831 bpix, bmp_bpix);
833 return 1;
834 }
836 /* We support displaying 8bpp BMPs on 16bpp LCDs */
837 if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16 || bpix != 32)) {
838 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
839 bpix,
840 le16_to_cpu(bmp->header.bit_count));
842 return 1;
843 }
845 debug("Display-bmp: %d x %d with %d colors\n",
846 (int)width, (int)height, (int)colors);
848 #if !defined(CONFIG_MCC200)
849 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
850 if (bmp_bpix == 8) {
851 cmap = configuration_get_cmap();
852 cmap_base = cmap;
854 /* Set color map */
855 for (i = 0; i < colors; ++i) {
856 bmp_color_table_entry_t cte = bmp->color_table[i];
857 #if !defined(CONFIG_ATMEL_LCD)
858 ushort colreg =
859 ( ((cte.red) << 8) & 0xf800) |
860 ( ((cte.green) << 3) & 0x07e0) |
861 ( ((cte.blue) >> 3) & 0x001f) ;
862 #ifdef CONFIG_SYS_INVERT_COLORS
863 *cmap = 0xffff - colreg;
864 #else
865 *cmap = colreg;
866 #endif
867 #if defined(CONFIG_MPC823)
868 cmap--;
869 #else
870 cmap++;
871 #endif
872 #else /* CONFIG_ATMEL_LCD */
873 lcd_setcolreg(i, cte.red, cte.green, cte.blue);
874 #endif
875 }
876 }
877 #endif
879 /*
880 * BMP format for Monochrome assumes that the state of a
881 * pixel is described on a per Bit basis, not per Byte.
882 * So, in case of Monochrome BMP we should align widths
883 * on a byte boundary and convert them from Bit to Byte
884 * units.
885 * Probably, PXA250 and MPC823 process 1bpp BMP images in
886 * their own ways, so make the converting to be MCC200
887 * specific.
888 */
889 #if defined(CONFIG_MCC200)
890 if (bpix == 1) {
891 width = ((width + 7) & ~7) >> 3;
892 x = ((x + 7) & ~7) >> 3;
893 pwidth= ((pwidth + 7) & ~7) >> 3;
894 }
895 #endif
897 padded_width = (width&0x3) ? ((width&~0x3)+4) : (width);
899 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
900 splash_align_axis(&x, pwidth, width);
901 splash_align_axis(&y, panel_info.vl_row, height);
902 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
904 if ((x + width) > pwidth)
905 width = pwidth - x;
906 if ((y + height) > panel_info.vl_row)
907 height = panel_info.vl_row - y;
909 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
910 fb = (uchar *) (lcd_base +
911 (y + height - 1) * lcd_line_length + x * bpix / 8);
913 switch (bmp_bpix) {
914 case 1: /* pass through */
915 case 8:
916 #ifdef CONFIG_LCD_BMP_RLE8
917 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) {
918 if (bpix != 16) {
919 /* TODO implement render code for bpix != 16 */
920 printf("Error: only support 16 bpix");
921 return 1;
922 }
923 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
924 break;
925 }
926 #endif
928 if (bpix != 16)
929 byte_width = width;
930 else
931 byte_width = width * 2;
933 for (i = 0; i < height; ++i) {
934 WATCHDOG_RESET();
935 for (j = 0; j < width; j++) {
936 if (bpix != 16) {
937 FB_PUT_BYTE(fb, bmap);
938 } else {
939 *(uint16_t *)fb = cmap_base[*(bmap++)];
940 fb += sizeof(uint16_t) / sizeof(*fb);
941 }
942 }
943 bmap += (padded_width - width);
944 fb -= (byte_width + lcd_line_length);
945 }
946 break;
948 #if defined(CONFIG_BMP_16BPP)
949 case 16:
950 for (i = 0; i < height; ++i) {
951 WATCHDOG_RESET();
952 for (j = 0; j < width; j++)
953 fb_put_word(&fb, &bmap);
955 bmap += (padded_width - width) * 2;
956 fb -= (width * 2 + lcd_line_length);
957 }
958 break;
959 #endif /* CONFIG_BMP_16BPP */
961 #if defined(CONFIG_BMP_32BPP)
962 case 32:
963 for (i = 0; i < height; ++i) {
964 for (j = 0; j < width; j++) {
965 *(fb++) = *(bmap++);
966 *(fb++) = *(bmap++);
967 *(fb++) = *(bmap++);
968 *(fb++) = *(bmap++);
969 }
970 fb -= (lcd_line_length + width * (bpix / 8));
971 }
972 break;
973 #endif /* CONFIG_BMP_32BPP */
974 default:
975 break;
976 };
978 return 0;
979 }
980 #endif
982 static void *lcd_logo(void)
983 {
984 #ifdef CONFIG_SPLASH_SCREEN
985 char *s;
986 ulong addr;
987 static int do_splash = 1;
989 if (do_splash && (s = getenv("splashimage")) != NULL) {
990 int x = 0, y = 0;
991 do_splash = 0;
993 addr = simple_strtoul (s, NULL, 16);
994 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
995 s = getenv("splashpos");
996 if (s != NULL) {
997 if (s[0] == 'm')
998 x = BMP_ALIGN_CENTER;
999 else
1000 x = simple_strtol(s, NULL, 0);
1002 s = strchr(s + 1, ',');
1003 if (s != NULL) {
1004 if (s[1] == 'm')
1005 y = BMP_ALIGN_CENTER;
1006 else
1007 y = simple_strtol (s + 1, NULL, 0);
1008 }
1009 }
1010 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1012 if (bmp_display(addr, x, y) == 0)
1013 return (void *)lcd_base;
1014 }
1015 #endif /* CONFIG_SPLASH_SCREEN */
1017 bitmap_plot(0, 0);
1019 #ifdef CONFIG_LCD_INFO
1020 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1021 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1022 lcd_show_board_info();
1023 #endif /* CONFIG_LCD_INFO */
1025 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1026 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
1027 #else
1028 return (void *)lcd_base;
1029 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
1030 }
1032 void lcd_position_cursor(unsigned col, unsigned row)
1033 {
1034 console_col = min(col, CONSOLE_COLS - 1);
1035 console_row = min(row, CONSOLE_ROWS - 1);
1036 }
1038 int lcd_get_pixel_width(void)
1039 {
1040 return panel_info.vl_col;
1041 }
1043 int lcd_get_pixel_height(void)
1044 {
1045 return panel_info.vl_row;
1046 }
1048 int lcd_get_screen_rows(void)
1049 {
1050 return CONSOLE_ROWS;
1051 }
1053 int lcd_get_screen_columns(void)
1054 {
1055 return CONSOLE_COLS;
1056 }
1058 /************************************************************************/
1059 /************************************************************************/