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)
44 #if defined(CONFIG_PXA250)
45 #include <asm/byteorder.h>
48 #if defined(CONFIG_MPC823)
56 /************************************************************************/
58 /************************************************************************/
59 #include <video_font.h> /* Get font data, width and height */
62 ulong
lcd_setmem (ulong addr
);
64 static void lcd_drawchars (ushort x
, ushort y
, uchar
*str
, int count
);
65 static inline void lcd_puts_xy (ushort x
, ushort y
, uchar
*s
);
66 static inline void lcd_putc_xy (ushort x
, ushort y
, uchar c
);
68 static int lcd_init (void *lcdbase
);
70 static int lcd_clear (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[]);
71 extern void lcd_ctrl_init (void *lcdbase
);
72 extern void lcd_enable (void);
73 static void *lcd_logo (void);
76 #if LCD_BPP == LCD_COLOR8
77 extern void lcd_setcolreg (ushort regno
,
78 ushort red
, ushort green
, ushort blue
);
80 #if LCD_BPP == LCD_MONOCHROME
81 extern void lcd_initcolregs (void);
84 static int lcd_getbgcolor (void);
85 static void lcd_setfgcolor (int color
);
86 static void lcd_setbgcolor (int color
);
88 char lcd_is_enabled
= 0;
89 extern vidinfo_t panel_info
;
91 #ifdef NOT_USED_SO_FAR
92 static void lcd_getcolreg (ushort regno
,
93 ushort
*red
, ushort
*green
, ushort
*blue
);
94 static int lcd_getfgcolor (void);
95 #endif /* NOT_USED_SO_FAR */
97 /************************************************************************/
99 /*----------------------------------------------------------------------*/
101 static void console_scrollup (void)
104 /* Copy up rows ignoring the first one */
105 memcpy (CONSOLE_ROW_FIRST
, CONSOLE_ROW_SECOND
, CONSOLE_SCROLL_SIZE
);
107 /* Clear the last one */
108 memset (CONSOLE_ROW_LAST
, COLOR_MASK(lcd_color_bg
), CONSOLE_ROW_SIZE
);
111 * Poor attempt to optimize speed by moving "long"s.
112 * But the code is ugly, and not a bit faster :-(
114 ulong
*t
= (ulong
*)CONSOLE_ROW_FIRST
;
115 ulong
*s
= (ulong
*)CONSOLE_ROW_SECOND
;
116 ulong l
= CONSOLE_SCROLL_SIZE
/ sizeof(ulong
);
117 uchar c
= lcd_color_bg
& 0xFF;
118 ulong val
= (c
<<24) | (c
<<16) | (c
<<8) | c
;
123 t
= (ulong
*)CONSOLE_ROW_LAST
;
124 l
= CONSOLE_ROW_SIZE
/ sizeof(ulong
);
131 /*----------------------------------------------------------------------*/
133 static inline void console_back (void)
135 if (--console_col
< 0) {
136 console_col
= CONSOLE_COLS
-1 ;
137 if (--console_row
< 0) {
142 lcd_putc_xy (console_col
* VIDEO_FONT_WIDTH
,
143 console_row
* VIDEO_FONT_HEIGHT
,
147 /*----------------------------------------------------------------------*/
149 static inline void console_newline (void)
154 /* Check if we need to scroll the terminal */
155 if (console_row
>= CONSOLE_ROWS
) {
156 /* Scroll everything up */
157 console_scrollup () ;
162 /*----------------------------------------------------------------------*/
164 void lcd_putc (const char c
)
166 if (!lcd_is_enabled
) {
172 case '\r': console_col
= 0;
175 case '\n': console_newline();
178 case '\t': /* Tab (8 chars alignment) */
182 if (console_col
>= CONSOLE_COLS
) {
187 case '\b': console_back();
190 default: lcd_putc_xy (console_col
* VIDEO_FONT_WIDTH
,
191 console_row
* VIDEO_FONT_HEIGHT
,
193 if (++console_col
>= CONSOLE_COLS
) {
201 /*----------------------------------------------------------------------*/
203 void lcd_puts (const char *s
)
205 if (!lcd_is_enabled
) {
215 /************************************************************************/
216 /* ** Low-Level Graphics Routines */
217 /************************************************************************/
219 static void lcd_drawchars (ushort x
, ushort y
, uchar
*str
, int count
)
224 dest
= (uchar
*)(lcd_base
+ y
* lcd_line_length
+ x
* (1 << LCD_BPP
) / 8);
225 off
= x
* (1 << LCD_BPP
) % 8;
227 for (row
=0; row
< VIDEO_FONT_HEIGHT
; ++row
, dest
+= lcd_line_length
) {
232 #if LCD_BPP == LCD_MONOCHROME
233 uchar rest
= *d
& -(1 << (8-off
));
236 for (i
=0; i
<count
; ++i
) {
240 bits
= video_fontdata
[c
* VIDEO_FONT_HEIGHT
+ row
];
242 #if LCD_BPP == LCD_MONOCHROME
243 sym
= (COLOR_MASK(lcd_color_fg
) & bits
) |
244 (COLOR_MASK(lcd_color_bg
) & ~bits
);
246 *d
++ = rest
| (sym
>> off
);
247 rest
= sym
<< (8-off
);
248 #elif LCD_BPP == LCD_COLOR8
249 for (c
=0; c
<8; ++c
) {
250 *d
++ = (bits
& 0x80) ?
251 lcd_color_fg
: lcd_color_bg
;
254 #elif LCD_BPP == LCD_COLOR16
255 for (c
=0; c
<16; ++c
) {
256 *d
++ = (bits
& 0x80) ?
257 lcd_color_fg
: lcd_color_bg
;
262 #if LCD_BPP == LCD_MONOCHROME
263 *d
= rest
| (*d
& ((1 << (8-off
)) - 1));
268 /*----------------------------------------------------------------------*/
270 static inline void lcd_puts_xy (ushort x
, ushort y
, uchar
*s
)
272 #if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
273 lcd_drawchars (x
, y
+BMP_LOGO_HEIGHT
, s
, strlen (s
));
275 lcd_drawchars (x
, y
, s
, strlen (s
));
279 /*----------------------------------------------------------------------*/
281 static inline void lcd_putc_xy (ushort x
, ushort y
, uchar c
)
283 #if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
284 lcd_drawchars (x
, y
+BMP_LOGO_HEIGHT
, &c
, 1);
286 lcd_drawchars (x
, y
, &c
, 1);
290 /************************************************************************/
291 /** Small utility to check that you got the colours right */
292 /************************************************************************/
293 #ifdef LCD_TEST_PATTERN
298 static int test_colors
[N_BLK_HOR
*N_BLK_VERT
] = {
299 CONSOLE_COLOR_RED
, CONSOLE_COLOR_GREEN
, CONSOLE_COLOR_YELLOW
,
300 CONSOLE_COLOR_BLUE
, CONSOLE_COLOR_MAGENTA
, CONSOLE_COLOR_CYAN
,
303 static void test_pattern (void)
305 ushort v_max
= panel_info
.vl_row
;
306 ushort h_max
= panel_info
.vl_col
;
307 ushort v_step
= (v_max
+ N_BLK_VERT
- 1) / N_BLK_VERT
;
308 ushort h_step
= (h_max
+ N_BLK_HOR
- 1) / N_BLK_HOR
;
310 uchar
*pix
= (uchar
*)lcd_base
;
312 printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
313 h_max
, v_max
, h_step
, v_step
);
315 /* WARNING: Code silently assumes 8bit/pixel */
316 for (v
=0; v
<v_max
; ++v
) {
317 uchar iy
= v
/ v_step
;
318 for (h
=0; h
<h_max
; ++h
) {
319 uchar ix
= N_BLK_HOR
* iy
+ (h
/h_step
);
320 *pix
++ = test_colors
[ix
];
324 #endif /* LCD_TEST_PATTERN */
327 /************************************************************************/
328 /* ** GENERIC Initialization Routines */
329 /************************************************************************/
331 int drv_lcd_init (void)
333 DECLARE_GLOBAL_DATA_PTR
;
338 lcd_base
= (void *)(gd
->fb_base
);
340 lcd_line_length
= (panel_info
.vl_col
* NBITS (panel_info
.vl_bpix
)) / 8;
342 lcd_init (lcd_base
); /* LCD initialization */
344 /* Device initialization */
345 memset (&lcddev
, 0, sizeof (lcddev
));
347 strcpy (lcddev
.name
, "lcd");
348 lcddev
.ext
= 0; /* No extensions */
349 lcddev
.flags
= DEV_FLAGS_OUTPUT
; /* Output only */
350 lcddev
.putc
= lcd_putc
; /* 'putc' function */
351 lcddev
.puts
= lcd_puts
; /* 'puts' function */
353 rc
= device_register (&lcddev
);
355 return (rc
== 0) ? 1 : rc
;
358 /*----------------------------------------------------------------------*/
359 static int lcd_clear (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
361 #if LCD_BPP == LCD_MONOCHROME
362 /* Setting the palette */
365 #elif LCD_BPP == LCD_COLOR8
366 /* Setting the palette */
367 lcd_setcolreg (CONSOLE_COLOR_BLACK
, 0, 0, 0);
368 lcd_setcolreg (CONSOLE_COLOR_RED
, 0xFF, 0, 0);
369 lcd_setcolreg (CONSOLE_COLOR_GREEN
, 0, 0xFF, 0);
370 lcd_setcolreg (CONSOLE_COLOR_YELLOW
, 0xFF, 0xFF, 0);
371 lcd_setcolreg (CONSOLE_COLOR_BLUE
, 0, 0, 0xFF);
372 lcd_setcolreg (CONSOLE_COLOR_MAGENTA
, 0xFF, 0, 0xFF);
373 lcd_setcolreg (CONSOLE_COLOR_CYAN
, 0, 0xFF, 0xFF);
374 lcd_setcolreg (CONSOLE_COLOR_GREY
, 0xAA, 0xAA, 0xAA);
375 lcd_setcolreg (CONSOLE_COLOR_WHITE
, 0xFF, 0xFF, 0xFF);
378 #ifndef CFG_WHITE_ON_BLACK
379 lcd_setfgcolor (CONSOLE_COLOR_BLACK
);
380 lcd_setbgcolor (CONSOLE_COLOR_WHITE
);
382 lcd_setfgcolor (CONSOLE_COLOR_WHITE
);
383 lcd_setbgcolor (CONSOLE_COLOR_BLACK
);
384 #endif /* CFG_WHITE_ON_BLACK */
386 #ifdef LCD_TEST_PATTERN
389 /* set framebuffer to background color */
390 memset ((char *)lcd_base
,
391 COLOR_MASK(lcd_getbgcolor()),
392 lcd_line_length
*panel_info
.vl_row
);
394 /* Paint the logo and retrieve LCD base address */
395 debug ("[LCD] Drawing the logo...\n");
396 lcd_console_address
= lcd_logo ();
405 cls
, 1, 1, lcd_clear
,
406 "cls - clear screen\n",
410 /*----------------------------------------------------------------------*/
412 static int lcd_init (void *lcdbase
)
414 /* Initialize the lcd controller */
415 debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase
);
417 lcd_ctrl_init (lcdbase
);
418 lcd_clear (NULL
, 1, 1, NULL
); /* dummy args */
421 /* Initialize the console */
423 #ifdef LCD_INFO_BELOW_LOGO
424 console_row
= 7 + BMP_LOGO_HEIGHT
/ VIDEO_FONT_HEIGHT
;
426 console_row
= 1; /* leave 1 blank line below logo */
434 /************************************************************************/
435 /* ** ROM capable initialization part - needed to reserve FB memory */
436 /************************************************************************/
438 * This is called early in the system initialization to grab memory
439 * for the LCD controller.
440 * Returns new address for monitor, after reserving LCD buffer memory
442 * Note that this is running from ROM, so no write access to global data.
444 ulong
lcd_setmem (ulong addr
)
447 int line_length
= (panel_info
.vl_col
* NBITS (panel_info
.vl_bpix
)) / 8;
449 debug ("LCD panel info: %d x %d, %d bit/pix\n",
450 panel_info
.vl_col
, panel_info
.vl_row
, NBITS (panel_info
.vl_bpix
) );
452 size
= line_length
* panel_info
.vl_row
;
454 /* Round up to nearest full page */
455 size
= (size
+ (PAGE_SIZE
- 1)) & ~(PAGE_SIZE
- 1);
457 /* Allocate pages for the frame buffer. */
460 debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size
>>10, addr
);
465 /*----------------------------------------------------------------------*/
467 static void lcd_setfgcolor (int color
)
469 lcd_color_fg
= color
& 0x0F;
472 /*----------------------------------------------------------------------*/
474 static void lcd_setbgcolor (int color
)
476 lcd_color_bg
= color
& 0x0F;
479 /*----------------------------------------------------------------------*/
481 #ifdef NOT_USED_SO_FAR
482 static int lcd_getfgcolor (void)
486 #endif /* NOT_USED_SO_FAR */
488 /*----------------------------------------------------------------------*/
490 static int lcd_getbgcolor (void)
495 /*----------------------------------------------------------------------*/
497 /************************************************************************/
498 /* ** Chipset depending Bitmap / Logo stuff... */
499 /************************************************************************/
500 #ifdef CONFIG_LCD_LOGO
501 void bitmap_plot (int x
, int y
)
508 #if defined(CONFIG_PXA250)
509 struct pxafb_info
*fbi
= &panel_info
.pxa
;
510 #elif defined(CONFIG_MPC823)
511 volatile immap_t
*immr
= (immap_t
*) CFG_IMMR
;
512 volatile cpm8xx_t
*cp
= &(immr
->im_cpm
);
515 debug ("Logo: width %d height %d colors %d cmap %d\n",
516 BMP_LOGO_WIDTH
, BMP_LOGO_HEIGHT
, BMP_LOGO_COLORS
,
517 sizeof(bmp_logo_palette
)/(sizeof(ushort
)));
519 bmap
= &bmp_logo_bitmap
[0];
520 fb
= (char *)(lcd_base
+ y
* lcd_line_length
+ x
);
522 if (NBITS(panel_info
.vl_bpix
) < 12) {
523 /* Leave room for default color map */
524 #if defined(CONFIG_PXA250)
525 cmap
= (ushort
*)fbi
->palette
;
526 #elif defined(CONFIG_MPC823)
527 cmap
= (ushort
*)&(cp
->lcd_cmap
[BMP_LOGO_OFFSET
*sizeof(ushort
)]);
533 for (i
=0; i
<(sizeof(bmp_logo_palette
)/(sizeof(ushort
))); ++i
) {
534 ushort colreg
= bmp_logo_palette
[i
];
535 #ifdef CFG_INVERT_COLORS
536 *cmap
++ = 0xffff - colreg
;
544 for (i
=0; i
<BMP_LOGO_HEIGHT
; ++i
) {
545 memcpy (fb
, bmap
, BMP_LOGO_WIDTH
);
546 bmap
+= BMP_LOGO_WIDTH
;
547 fb
+= panel_info
.vl_col
;
550 else { /* true color mode */
551 fb16
= (ushort
*)(lcd_base
+ y
* lcd_line_length
+ x
);
552 for (i
=0; i
<BMP_LOGO_HEIGHT
; ++i
) {
553 for (j
=0; j
<BMP_LOGO_WIDTH
; j
++) {
554 fb16
[j
] = bmp_logo_palette
[(bmap
[j
])];
556 bmap
+= BMP_LOGO_WIDTH
;
557 fb16
+= panel_info
.vl_col
;
563 #endif /* CONFIG_LCD_LOGO */
565 /*----------------------------------------------------------------------*/
566 #if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
568 * Display the BMP file located at address bmp_image.
571 int lcd_display_bitmap(ulong bmp_image
, int x
, int y
)
576 bmp_image_t
*bmp
=(bmp_image_t
*)bmp_image
;
579 unsigned long width
, height
;
580 unsigned colors
,bpix
;
581 unsigned long compression
;
582 #if defined(CONFIG_PXA250)
583 struct pxafb_info
*fbi
= &panel_info
.pxa
;
584 #elif defined(CONFIG_MPC823)
585 volatile immap_t
*immr
= (immap_t
*) CFG_IMMR
;
586 volatile cpm8xx_t
*cp
= &(immr
->im_cpm
);
589 if (!((bmp
->header
.signature
[0]=='B') &&
590 (bmp
->header
.signature
[1]=='M'))) {
591 printf ("Error: no valid bmp image at %lx\n", bmp_image
);
595 width
= le32_to_cpu (bmp
->header
.width
);
596 height
= le32_to_cpu (bmp
->header
.height
);
597 colors
= 1<<le16_to_cpu (bmp
->header
.bit_count
);
598 compression
= le32_to_cpu (bmp
->header
.compression
);
600 bpix
= NBITS(panel_info
.vl_bpix
);
602 if ((bpix
!= 1) && (bpix
!= 8)) {
603 printf ("Error: %d bit/pixel mode not supported by U-Boot\n",
608 if (bpix
!= le16_to_cpu(bmp
->header
.bit_count
)) {
609 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
611 le16_to_cpu(bmp
->header
.bit_count
));
615 debug ("Display-bmp: %d x %d with %d colors\n",
616 (int)width
, (int)height
, (int)colors
);
619 #if defined(CONFIG_PXA250)
620 cmap
= (ushort
*)fbi
->palette
;
621 #elif defined(CONFIG_MPC823)
622 cmap
= (ushort
*)&(cp
->lcd_cmap
[255*sizeof(ushort
)]);
626 for (i
=0; i
<colors
; ++i
) {
627 bmp_color_table_entry_t cte
= bmp
->color_table
[i
];
629 ( ((cte
.red
) << 8) & 0xf800) |
630 ( ((cte
.green
) << 4) & 0x07e0) |
631 ( (cte
.blue
) & 0x001f) ;
633 #ifdef CFG_INVERT_COLORS
634 *cmap
++ = 0xffff - colreg
;
641 padded_line
= (width
&0x3) ? ((width
&~0x3)+4) : (width
);
642 if ((x
+ width
)>panel_info
.vl_col
)
643 width
= panel_info
.vl_col
- x
;
644 if ((y
+ height
)>panel_info
.vl_row
)
645 height
= panel_info
.vl_row
- y
;
647 bmap
= (uchar
*)bmp
+ le32_to_cpu (bmp
->header
.data_offset
);
648 fb
= (uchar
*) (lcd_base
+
649 (y
+ height
- 1) * lcd_line_length
+ x
);
650 for (i
= 0; i
< height
; ++i
) {
651 for (j
= 0; j
< width
; j
++)
652 #if defined(CONFIG_PXA250)
654 #elif defined(CONFIG_MPC823)
655 *(fb
++)=255-*(bmap
++);
657 bmap
+= (width
- padded_line
);
658 fb
-= (width
+ lcd_line_length
);
663 #endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */
666 static void *lcd_logo (void)
669 DECLARE_GLOBAL_DATA_PTR
;
673 #endif /* LCD_INFO */
675 #ifdef CONFIG_SPLASH_SCREEN
678 static int do_splash
= 1;
680 if (do_splash
&& (s
= getenv("splashimage")) != NULL
) {
681 addr
= simple_strtoul(s
, NULL
, 16);
684 if (lcd_display_bitmap (addr
, 0, 0) == 0) {
685 return ((void *)lcd_base
);
688 #endif /* CONFIG_SPLASH_SCREEN */
690 #ifdef CONFIG_LCD_LOGO
692 #endif /* CONFIG_LCD_LOGO */
696 sprintf (info
, "%s (%s - %s) ", U_BOOT_VERSION
, __DATE__
, __TIME__
);
697 lcd_drawchars (LCD_INFO_X
, LCD_INFO_Y
, info
, strlen(info
));
699 sprintf (info
, "(C) 2004 DENX Software Engineering");
700 lcd_drawchars (LCD_INFO_X
, LCD_INFO_Y
+ VIDEO_FONT_HEIGHT
,
703 sprintf (info
, " Wolfgang DENK, wd@denx.de");
704 lcd_drawchars (LCD_INFO_X
, LCD_INFO_Y
+ VIDEO_FONT_HEIGHT
* 2,
706 #ifdef LCD_INFO_BELOW_LOGO
707 sprintf (info
, "MPC823 CPU at %s MHz",
708 strmhz(temp
, gd
->cpu_clk
));
709 lcd_drawchars (LCD_INFO_X
, LCD_INFO_Y
+ VIDEO_FONT_HEIGHT
* 3,
711 sprintf (info
, " %ld MB RAM, %ld MB Flash",
713 gd
->bd
->bi_flashsize
>> 20 );
714 lcd_drawchars (LCD_INFO_X
, LCD_INFO_Y
+ VIDEO_FONT_HEIGHT
* 4,
717 /* leave one blank line */
719 sprintf (info
, "MPC823 CPU at %s MHz, %ld MB RAM, %ld MB Flash",
720 strmhz(temp
, gd
->cpu_clk
),
722 gd
->bd
->bi_flashsize
>> 20 );
723 lcd_drawchars (LCD_INFO_X
, LCD_INFO_Y
+ VIDEO_FONT_HEIGHT
* 4,
726 #endif /* CONFIG_MPC823 */
727 #endif /* LCD_INFO_BELOW_LOGO */
728 #endif /* LCD_INFO */
730 #if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
731 return ((void *)((ulong
)lcd_base
+ BMP_LOGO_HEIGHT
* lcd_line_length
));
733 return ((void *)lcd_base
);
734 #endif /* CONFIG_LCD_LOGO */
737 /************************************************************************/
738 /************************************************************************/
740 #endif /* CONFIG_LCD */