xref: /openbmc/u-boot/drivers/video/cfb_console.c (revision 32dbaafa)
1 /*
2  * (C) Copyright 2002 ELTEC Elektronik AG
3  * Frank Gottschling <fgottschling@eltec.de>
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23 
24 /*
25  * cfb_console.c
26  *
27  * Color Framebuffer Console driver for 8/15/16/24/32 bits per pixel.
28  *
29  * At the moment only the 8x16 font is tested and the font fore- and
30  * background color is limited to black/white/gray colors. The Linux
31  * logo can be placed in the upper left corner and additional board
32  * information strings (that normally goes to serial port) can be drawn.
33  *
34  * The console driver can use the standard PC keyboard interface (i8042)
35  * for character input. Character output goes to a memory mapped video
36  * framebuffer with little or big-endian organisation.
37  * With environment setting 'console=serial' the console i/o can be
38  * forced to serial port.
39  *
40  * The driver uses graphic specific defines/parameters/functions:
41  *
42  * (for SMI LynxE graphic chip)
43  *
44  * CONFIG_VIDEO_SMI_LYNXEM    - use graphic driver for SMI 710,712,810
45  * VIDEO_FB_LITTLE_ENDIAN     - framebuffer organisation default: big endian
46  * VIDEO_HW_RECTFILL	      - graphic driver supports hardware rectangle fill
47  * VIDEO_HW_BITBLT	      - graphic driver supports hardware bit blt
48  *
49  * Console Parameters are set by graphic drivers global struct:
50  *
51  * VIDEO_VISIBLE_COLS	      - x resolution
52  * VIDEO_VISIBLE_ROWS	      - y resolution
53  * VIDEO_PIXEL_SIZE	      - storage size in byte per pixel
54  * VIDEO_DATA_FORMAT	      - graphical data format GDF
55  * VIDEO_FB_ADRS	      - start of video memory
56  *
57  * CONFIG_I8042_KBD	      - AT Keyboard driver for i8042
58  * VIDEO_KBD_INIT_FCT	      - init function for keyboard
59  * VIDEO_TSTC_FCT	      - keyboard_tstc function
60  * VIDEO_GETC_FCT	      - keyboard_getc function
61  *
62  * CONFIG_CONSOLE_CURSOR      - on/off drawing cursor is done with
63  *				delay loop in VIDEO_TSTC_FCT (i8042)
64  *
65  * CONFIG_SYS_CONSOLE_BLINK_COUNT - value for delay loop - blink rate
66  * CONFIG_CONSOLE_TIME	      - display time/date in upper right
67  *				corner, needs CONFIG_CMD_DATE and
68  *				CONFIG_CONSOLE_CURSOR
69  * CONFIG_VIDEO_LOGO	      - display Linux Logo in upper left corner
70  * CONFIG_VIDEO_BMP_LOGO      - use bmp_logo instead of linux_logo
71  * CONFIG_CONSOLE_EXTRA_INFO  - display additional board information
72  *				strings that normaly goes to serial
73  *				port.  This define requires a board
74  *				specific function:
75  *				video_drawstring (VIDEO_INFO_X,
76  *					VIDEO_INFO_Y + i*VIDEO_FONT_HEIGHT,
77  *					info);
78  *				that fills a info buffer at i=row.
79  *				s.a: board/eltec/bab7xx.
80  * CONFIG_VGA_AS_SINGLE_DEVICE - If set the framebuffer device will be
81  *				initialized as an output only device.
82  *				The Keyboard driver will not be
83  *				set-up.  This may be used, if you have
84  *				no or more than one Keyboard devices
85  *				(USB Keyboard, AT Keyboard).
86  *
87  * CONFIG_VIDEO_SW_CURSOR:    - Draws a cursor after the last
88  *				character. No blinking is provided.
89  *				Uses the macros CURSOR_SET and
90  *				CURSOR_OFF.
91  *
92  * CONFIG_VIDEO_HW_CURSOR:    - Uses the hardware cursor capability
93  *				of the graphic chip. Uses the macro
94  *				CURSOR_SET. ATTENTION: If booting an
95  *				OS, the display driver must disable
96  *				the hardware register of the graphic
97  *				chip. Otherwise a blinking field is
98  *				displayed.
99  */
100 
101 #include <common.h>
102 #include <version.h>
103 #include <malloc.h>
104 #include <linux/compiler.h>
105 
106 /*
107  * Console device defines with SMI graphic
108  * Any other graphic must change this section
109  */
110 
111 #ifdef	CONFIG_VIDEO_SMI_LYNXEM
112 
113 #define VIDEO_FB_LITTLE_ENDIAN
114 #define VIDEO_HW_RECTFILL
115 #define VIDEO_HW_BITBLT
116 #endif
117 
118 /*
119  * Defines for the CT69000 driver
120  */
121 #ifdef	CONFIG_VIDEO_CT69000
122 
123 #define VIDEO_FB_LITTLE_ENDIAN
124 #define VIDEO_HW_RECTFILL
125 #define VIDEO_HW_BITBLT
126 #endif
127 
128 /*
129  * Defines for the SED13806 driver
130  */
131 #ifdef CONFIG_VIDEO_SED13806
132 
133 #ifndef CONFIG_TOTAL5200
134 #define VIDEO_FB_LITTLE_ENDIAN
135 #endif
136 #define VIDEO_HW_RECTFILL
137 #define VIDEO_HW_BITBLT
138 #endif
139 
140 /*
141  * Defines for the SED13806 driver
142  */
143 #ifdef CONFIG_VIDEO_SM501
144 
145 #ifdef CONFIG_HH405
146 #define VIDEO_FB_LITTLE_ENDIAN
147 #endif
148 #endif
149 
150 /*
151  * Defines for the MB862xx driver
152  */
153 #ifdef CONFIG_VIDEO_MB862xx
154 
155 #ifdef CONFIG_VIDEO_CORALP
156 #define VIDEO_FB_LITTLE_ENDIAN
157 #endif
158 #ifdef CONFIG_VIDEO_MB862xx_ACCEL
159 #define VIDEO_HW_RECTFILL
160 #define VIDEO_HW_BITBLT
161 #endif
162 #endif
163 
164 /*
165  * Defines for the i.MX31 driver (mx3fb.c)
166  */
167 #if defined(CONFIG_VIDEO_MX3) || defined(CONFIG_VIDEO_IPUV3)
168 #define VIDEO_FB_16BPP_WORD_SWAP
169 #endif
170 
171 /*
172  * Include video_fb.h after definitions of VIDEO_HW_RECTFILL etc.
173  */
174 #include <video_fb.h>
175 
176 /*
177  * some Macros
178  */
179 #define VIDEO_VISIBLE_COLS	(pGD->winSizeX)
180 #define VIDEO_VISIBLE_ROWS	(pGD->winSizeY)
181 #define VIDEO_PIXEL_SIZE	(pGD->gdfBytesPP)
182 #define VIDEO_DATA_FORMAT	(pGD->gdfIndex)
183 #define VIDEO_FB_ADRS		(pGD->frameAdrs)
184 
185 /*
186  * Console device defines with i8042 keyboard controller
187  * Any other keyboard controller must change this section
188  */
189 
190 #ifdef	CONFIG_I8042_KBD
191 #include <i8042.h>
192 
193 #define VIDEO_KBD_INIT_FCT	i8042_kbd_init()
194 #define VIDEO_TSTC_FCT		i8042_tstc
195 #define VIDEO_GETC_FCT		i8042_getc
196 #endif
197 
198 /*
199  * Console device
200  */
201 
202 #include <version.h>
203 #include <linux/types.h>
204 #include <stdio_dev.h>
205 #include <video_font.h>
206 #include <video_font_data.h>
207 
208 #if defined(CONFIG_CMD_DATE)
209 #include <rtc.h>
210 #endif
211 
212 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
213 #include <watchdog.h>
214 #include <bmp_layout.h>
215 
216 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
217 #define BMP_ALIGN_CENTER	0x7FFF
218 #endif
219 
220 #endif
221 
222 /*
223  * Cursor definition:
224  * CONFIG_CONSOLE_CURSOR:  Uses a timer function (see drivers/input/i8042.c)
225  *			   to let the cursor blink. Uses the macros
226  *			   CURSOR_OFF and CURSOR_ON.
227  * CONFIG_VIDEO_SW_CURSOR: Draws a cursor after the last character. No
228  *			   blinking is provided. Uses the macros CURSOR_SET
229  *			   and CURSOR_OFF.
230  * CONFIG_VIDEO_HW_CURSOR: Uses the hardware cursor capability of the
231  *			   graphic chip. Uses the macro CURSOR_SET.
232  *			   ATTENTION: If booting an OS, the display driver
233  *			   must disable the hardware register of the graphic
234  *			   chip. Otherwise a blinking field is displayed
235  */
236 #if !defined(CONFIG_CONSOLE_CURSOR) && \
237     !defined(CONFIG_VIDEO_SW_CURSOR) && \
238     !defined(CONFIG_VIDEO_HW_CURSOR)
239 /* no Cursor defined */
240 #define CURSOR_ON
241 #define CURSOR_OFF
242 #define CURSOR_SET
243 #endif
244 
245 #if defined(CONFIG_CONSOLE_CURSOR) || defined(CONFIG_VIDEO_SW_CURSOR)
246 #if defined(CURSOR_ON) || \
247 	(defined(CONFIG_CONSOLE_CURSOR) && defined(CONFIG_VIDEO_SW_CURSOR))
248 #error	only one of CONFIG_CONSOLE_CURSOR, CONFIG_VIDEO_SW_CURSOR, \
249 	or CONFIG_VIDEO_HW_CURSOR can be defined
250 #endif
251 void console_cursor(int state);
252 
253 #define CURSOR_ON  console_cursor(1)
254 #define CURSOR_OFF console_cursor(0)
255 #define CURSOR_SET video_set_cursor()
256 #endif /* CONFIG_CONSOLE_CURSOR || CONFIG_VIDEO_SW_CURSOR */
257 
258 #ifdef	CONFIG_CONSOLE_CURSOR
259 #ifndef	CONFIG_CONSOLE_TIME
260 #error	CONFIG_CONSOLE_CURSOR must be defined for CONFIG_CONSOLE_TIME
261 #endif
262 #ifndef CONFIG_I8042_KBD
263 #warning Cursor drawing on/off needs timer function s.a. drivers/input/i8042.c
264 #endif
265 #endif /* CONFIG_CONSOLE_CURSOR */
266 
267 
268 #ifdef CONFIG_VIDEO_HW_CURSOR
269 #ifdef	CURSOR_ON
270 #error	only one of CONFIG_CONSOLE_CURSOR, CONFIG_VIDEO_SW_CURSOR, \
271 	or CONFIG_VIDEO_HW_CURSOR can be defined
272 #endif
273 #define CURSOR_ON
274 #define CURSOR_OFF
275 #define CURSOR_SET video_set_hw_cursor(console_col * VIDEO_FONT_WIDTH, \
276 		  (console_row * VIDEO_FONT_HEIGHT) + video_logo_height)
277 #endif /* CONFIG_VIDEO_HW_CURSOR */
278 
279 #ifdef	CONFIG_VIDEO_LOGO
280 #ifdef	CONFIG_VIDEO_BMP_LOGO
281 #include <bmp_logo.h>
282 #include <bmp_logo_data.h>
283 #define VIDEO_LOGO_WIDTH	BMP_LOGO_WIDTH
284 #define VIDEO_LOGO_HEIGHT	BMP_LOGO_HEIGHT
285 #define VIDEO_LOGO_LUT_OFFSET	BMP_LOGO_OFFSET
286 #define VIDEO_LOGO_COLORS	BMP_LOGO_COLORS
287 
288 #else  /* CONFIG_VIDEO_BMP_LOGO */
289 #define LINUX_LOGO_WIDTH	80
290 #define LINUX_LOGO_HEIGHT	80
291 #define LINUX_LOGO_COLORS	214
292 #define LINUX_LOGO_LUT_OFFSET	0x20
293 #define __initdata
294 #include <linux_logo.h>
295 #define VIDEO_LOGO_WIDTH	LINUX_LOGO_WIDTH
296 #define VIDEO_LOGO_HEIGHT	LINUX_LOGO_HEIGHT
297 #define VIDEO_LOGO_LUT_OFFSET	LINUX_LOGO_LUT_OFFSET
298 #define VIDEO_LOGO_COLORS	LINUX_LOGO_COLORS
299 #endif /* CONFIG_VIDEO_BMP_LOGO */
300 #define VIDEO_INFO_X		(VIDEO_LOGO_WIDTH)
301 #define VIDEO_INFO_Y		(VIDEO_FONT_HEIGHT/2)
302 #else  /* CONFIG_VIDEO_LOGO */
303 #define VIDEO_LOGO_WIDTH	0
304 #define VIDEO_LOGO_HEIGHT	0
305 #endif /* CONFIG_VIDEO_LOGO */
306 
307 #define VIDEO_COLS		VIDEO_VISIBLE_COLS
308 #define VIDEO_ROWS		VIDEO_VISIBLE_ROWS
309 #define VIDEO_SIZE		(VIDEO_ROWS*VIDEO_COLS*VIDEO_PIXEL_SIZE)
310 #define VIDEO_PIX_BLOCKS	(VIDEO_SIZE >> 2)
311 #define VIDEO_LINE_LEN		(VIDEO_COLS*VIDEO_PIXEL_SIZE)
312 #define VIDEO_BURST_LEN		(VIDEO_COLS/8)
313 
314 #ifdef	CONFIG_VIDEO_LOGO
315 #define CONSOLE_ROWS		((VIDEO_ROWS - video_logo_height) / VIDEO_FONT_HEIGHT)
316 #else
317 #define CONSOLE_ROWS		(VIDEO_ROWS / VIDEO_FONT_HEIGHT)
318 #endif
319 
320 #define CONSOLE_COLS		(VIDEO_COLS / VIDEO_FONT_WIDTH)
321 #define CONSOLE_ROW_SIZE	(VIDEO_FONT_HEIGHT * VIDEO_LINE_LEN)
322 #define CONSOLE_ROW_FIRST	(video_console_address)
323 #define CONSOLE_ROW_SECOND	(video_console_address + CONSOLE_ROW_SIZE)
324 #define CONSOLE_ROW_LAST	(video_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE)
325 #define CONSOLE_SIZE		(CONSOLE_ROW_SIZE * CONSOLE_ROWS)
326 #define CONSOLE_SCROLL_SIZE	(CONSOLE_SIZE - CONSOLE_ROW_SIZE)
327 
328 /* Macros */
329 #ifdef	VIDEO_FB_LITTLE_ENDIAN
330 #define SWAP16(x)		((((x) & 0x00ff) << 8) | \
331 				  ((x) >> 8) \
332 				)
333 #define SWAP32(x)		((((x) & 0x000000ff) << 24) | \
334 				 (((x) & 0x0000ff00) <<  8) | \
335 				 (((x) & 0x00ff0000) >>  8) | \
336 				 (((x) & 0xff000000) >> 24)   \
337 				)
338 #define SHORTSWAP32(x)		((((x) & 0x000000ff) <<  8) | \
339 				 (((x) & 0x0000ff00) >>  8) | \
340 				 (((x) & 0x00ff0000) <<  8) | \
341 				 (((x) & 0xff000000) >>  8)   \
342 				)
343 #else
344 #define SWAP16(x)		(x)
345 #define SWAP32(x)		(x)
346 #if defined(VIDEO_FB_16BPP_WORD_SWAP)
347 #define SHORTSWAP32(x)		(((x) >> 16) | ((x) << 16))
348 #else
349 #define SHORTSWAP32(x)		(x)
350 #endif
351 #endif
352 
353 #ifdef CONFIG_CONSOLE_EXTRA_INFO
354 /*
355  * setup a board string: type, speed, etc.
356  *
357  * line_number:	location to place info string beside logo
358  * info:	buffer for info string
359  */
360 extern void video_get_info_str(int line_number,	char *info);
361 #endif
362 
363 DECLARE_GLOBAL_DATA_PTR;
364 
365 /* Locals */
366 static GraphicDevice *pGD;	/* Pointer to Graphic array */
367 
368 static void *video_fb_address;	/* frame buffer address */
369 static void *video_console_address;	/* console buffer start address */
370 
371 static int video_logo_height = VIDEO_LOGO_HEIGHT;
372 
373 static int __maybe_unused cursor_state;
374 static int __maybe_unused old_col;
375 static int __maybe_unused old_row;
376 
377 static int console_col;		/* cursor col */
378 static int console_row;		/* cursor row */
379 
380 static u32 eorx, fgx, bgx;	/* color pats */
381 
382 static int cfb_do_flush_cache;
383 
384 static const int video_font_draw_table8[] = {
385 	0x00000000, 0x000000ff, 0x0000ff00, 0x0000ffff,
386 	0x00ff0000, 0x00ff00ff, 0x00ffff00, 0x00ffffff,
387 	0xff000000, 0xff0000ff, 0xff00ff00, 0xff00ffff,
388 	0xffff0000, 0xffff00ff, 0xffffff00, 0xffffffff
389 };
390 
391 static const int video_font_draw_table15[] = {
392 	0x00000000, 0x00007fff, 0x7fff0000, 0x7fff7fff
393 };
394 
395 static const int video_font_draw_table16[] = {
396 	0x00000000, 0x0000ffff, 0xffff0000, 0xffffffff
397 };
398 
399 static const int video_font_draw_table24[16][3] = {
400 	{0x00000000, 0x00000000, 0x00000000},
401 	{0x00000000, 0x00000000, 0x00ffffff},
402 	{0x00000000, 0x0000ffff, 0xff000000},
403 	{0x00000000, 0x0000ffff, 0xffffffff},
404 	{0x000000ff, 0xffff0000, 0x00000000},
405 	{0x000000ff, 0xffff0000, 0x00ffffff},
406 	{0x000000ff, 0xffffffff, 0xff000000},
407 	{0x000000ff, 0xffffffff, 0xffffffff},
408 	{0xffffff00, 0x00000000, 0x00000000},
409 	{0xffffff00, 0x00000000, 0x00ffffff},
410 	{0xffffff00, 0x0000ffff, 0xff000000},
411 	{0xffffff00, 0x0000ffff, 0xffffffff},
412 	{0xffffffff, 0xffff0000, 0x00000000},
413 	{0xffffffff, 0xffff0000, 0x00ffffff},
414 	{0xffffffff, 0xffffffff, 0xff000000},
415 	{0xffffffff, 0xffffffff, 0xffffffff}
416 };
417 
418 static const int video_font_draw_table32[16][4] = {
419 	{0x00000000, 0x00000000, 0x00000000, 0x00000000},
420 	{0x00000000, 0x00000000, 0x00000000, 0x00ffffff},
421 	{0x00000000, 0x00000000, 0x00ffffff, 0x00000000},
422 	{0x00000000, 0x00000000, 0x00ffffff, 0x00ffffff},
423 	{0x00000000, 0x00ffffff, 0x00000000, 0x00000000},
424 	{0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff},
425 	{0x00000000, 0x00ffffff, 0x00ffffff, 0x00000000},
426 	{0x00000000, 0x00ffffff, 0x00ffffff, 0x00ffffff},
427 	{0x00ffffff, 0x00000000, 0x00000000, 0x00000000},
428 	{0x00ffffff, 0x00000000, 0x00000000, 0x00ffffff},
429 	{0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000},
430 	{0x00ffffff, 0x00000000, 0x00ffffff, 0x00ffffff},
431 	{0x00ffffff, 0x00ffffff, 0x00000000, 0x00000000},
432 	{0x00ffffff, 0x00ffffff, 0x00000000, 0x00ffffff},
433 	{0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00000000},
434 	{0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff}
435 };
436 
437 static void video_drawchars(int xx, int yy, unsigned char *s, int count)
438 {
439 	u8 *cdat, *dest, *dest0;
440 	int rows, offset, c;
441 
442 	offset = yy * VIDEO_LINE_LEN + xx * VIDEO_PIXEL_SIZE;
443 	dest0 = video_fb_address + offset;
444 
445 	switch (VIDEO_DATA_FORMAT) {
446 	case GDF__8BIT_INDEX:
447 	case GDF__8BIT_332RGB:
448 		while (count--) {
449 			c = *s;
450 			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
451 			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
452 			     rows--; dest += VIDEO_LINE_LEN) {
453 				u8 bits = *cdat++;
454 
455 				((u32 *) dest)[0] =
456 					(video_font_draw_table8[bits >> 4] &
457 					 eorx) ^ bgx;
458 				((u32 *) dest)[1] =
459 					(video_font_draw_table8[bits & 15] &
460 					 eorx) ^ bgx;
461 			}
462 			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
463 			s++;
464 		}
465 		break;
466 
467 	case GDF_15BIT_555RGB:
468 		while (count--) {
469 			c = *s;
470 			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
471 			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
472 			     rows--; dest += VIDEO_LINE_LEN) {
473 				u8 bits = *cdat++;
474 
475 				((u32 *) dest)[0] =
476 					SHORTSWAP32((video_font_draw_table15
477 						     [bits >> 6] & eorx) ^
478 						    bgx);
479 				((u32 *) dest)[1] =
480 					SHORTSWAP32((video_font_draw_table15
481 						     [bits >> 4 & 3] & eorx) ^
482 						    bgx);
483 				((u32 *) dest)[2] =
484 					SHORTSWAP32((video_font_draw_table15
485 						     [bits >> 2 & 3] & eorx) ^
486 						    bgx);
487 				((u32 *) dest)[3] =
488 					SHORTSWAP32((video_font_draw_table15
489 						     [bits & 3] & eorx) ^
490 						    bgx);
491 			}
492 			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
493 			s++;
494 		}
495 		break;
496 
497 	case GDF_16BIT_565RGB:
498 		while (count--) {
499 			c = *s;
500 			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
501 			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
502 			     rows--; dest += VIDEO_LINE_LEN) {
503 				u8 bits = *cdat++;
504 
505 				((u32 *) dest)[0] =
506 					SHORTSWAP32((video_font_draw_table16
507 						     [bits >> 6] & eorx) ^
508 						    bgx);
509 				((u32 *) dest)[1] =
510 					SHORTSWAP32((video_font_draw_table16
511 						     [bits >> 4 & 3] & eorx) ^
512 						    bgx);
513 				((u32 *) dest)[2] =
514 					SHORTSWAP32((video_font_draw_table16
515 						     [bits >> 2 & 3] & eorx) ^
516 						    bgx);
517 				((u32 *) dest)[3] =
518 					SHORTSWAP32((video_font_draw_table16
519 						     [bits & 3] & eorx) ^
520 						    bgx);
521 			}
522 			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
523 			s++;
524 		}
525 		break;
526 
527 	case GDF_32BIT_X888RGB:
528 		while (count--) {
529 			c = *s;
530 			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
531 			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
532 			     rows--; dest += VIDEO_LINE_LEN) {
533 				u8 bits = *cdat++;
534 
535 				((u32 *) dest)[0] =
536 					SWAP32((video_font_draw_table32
537 						[bits >> 4][0] & eorx) ^ bgx);
538 				((u32 *) dest)[1] =
539 					SWAP32((video_font_draw_table32
540 						[bits >> 4][1] & eorx) ^ bgx);
541 				((u32 *) dest)[2] =
542 					SWAP32((video_font_draw_table32
543 						[bits >> 4][2] & eorx) ^ bgx);
544 				((u32 *) dest)[3] =
545 					SWAP32((video_font_draw_table32
546 						[bits >> 4][3] & eorx) ^ bgx);
547 				((u32 *) dest)[4] =
548 					SWAP32((video_font_draw_table32
549 						[bits & 15][0] & eorx) ^ bgx);
550 				((u32 *) dest)[5] =
551 					SWAP32((video_font_draw_table32
552 						[bits & 15][1] & eorx) ^ bgx);
553 				((u32 *) dest)[6] =
554 					SWAP32((video_font_draw_table32
555 						[bits & 15][2] & eorx) ^ bgx);
556 				((u32 *) dest)[7] =
557 					SWAP32((video_font_draw_table32
558 						[bits & 15][3] & eorx) ^ bgx);
559 			}
560 			if (cfb_do_flush_cache)
561 				flush_cache((ulong)dest0, 32);
562 			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
563 			s++;
564 		}
565 		break;
566 
567 	case GDF_24BIT_888RGB:
568 		while (count--) {
569 			c = *s;
570 			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
571 			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
572 			     rows--; dest += VIDEO_LINE_LEN) {
573 				u8 bits = *cdat++;
574 
575 				((u32 *) dest)[0] =
576 					(video_font_draw_table24[bits >> 4][0]
577 					 & eorx) ^ bgx;
578 				((u32 *) dest)[1] =
579 					(video_font_draw_table24[bits >> 4][1]
580 					 & eorx) ^ bgx;
581 				((u32 *) dest)[2] =
582 					(video_font_draw_table24[bits >> 4][2]
583 					 & eorx) ^ bgx;
584 				((u32 *) dest)[3] =
585 					(video_font_draw_table24[bits & 15][0]
586 					 & eorx) ^ bgx;
587 				((u32 *) dest)[4] =
588 					(video_font_draw_table24[bits & 15][1]
589 					 & eorx) ^ bgx;
590 				((u32 *) dest)[5] =
591 					(video_font_draw_table24[bits & 15][2]
592 					 & eorx) ^ bgx;
593 			}
594 			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
595 			s++;
596 		}
597 		break;
598 	}
599 }
600 
601 static inline void video_drawstring(int xx, int yy, unsigned char *s)
602 {
603 	video_drawchars(xx, yy, s, strlen((char *) s));
604 }
605 
606 static void video_putchar(int xx, int yy, unsigned char c)
607 {
608 	video_drawchars(xx, yy + video_logo_height, &c, 1);
609 }
610 
611 #if defined(CONFIG_CONSOLE_CURSOR) || defined(CONFIG_VIDEO_SW_CURSOR)
612 static void video_set_cursor(void)
613 {
614 	if (cursor_state)
615 		console_cursor(0);
616 	console_cursor(1);
617 }
618 
619 static void video_invertchar(int xx, int yy)
620 {
621 	int firstx = xx * VIDEO_PIXEL_SIZE;
622 	int lastx = (xx + VIDEO_FONT_WIDTH) * VIDEO_PIXEL_SIZE;
623 	int firsty = yy * VIDEO_LINE_LEN;
624 	int lasty = (yy + VIDEO_FONT_HEIGHT) * VIDEO_LINE_LEN;
625 	int x, y;
626 	for (y = firsty; y < lasty; y += VIDEO_LINE_LEN) {
627 		for (x = firstx; x < lastx; x++) {
628 			u8 *dest = (u8 *)(video_fb_address) + x + y;
629 			*dest = ~*dest;
630 			if (cfb_do_flush_cache)
631 				flush_cache((ulong)dest, 4);
632 		}
633 	}
634 }
635 
636 void console_cursor(int state)
637 {
638 #ifdef CONFIG_CONSOLE_TIME
639 	struct rtc_time tm;
640 	char info[16];
641 
642 	/* time update only if cursor is on (faster scroll) */
643 	if (state) {
644 		rtc_get(&tm);
645 
646 		sprintf(info, " %02d:%02d:%02d ", tm.tm_hour, tm.tm_min,
647 			tm.tm_sec);
648 		video_drawstring(VIDEO_VISIBLE_COLS - 10 * VIDEO_FONT_WIDTH,
649 				 VIDEO_INFO_Y, (uchar *) info);
650 
651 		sprintf(info, "%02d.%02d.%04d", tm.tm_mday, tm.tm_mon,
652 			tm.tm_year);
653 		video_drawstring(VIDEO_VISIBLE_COLS - 10 * VIDEO_FONT_WIDTH,
654 				 VIDEO_INFO_Y + 1 * VIDEO_FONT_HEIGHT,
655 				 (uchar *) info);
656 	}
657 #endif
658 
659 	if (cursor_state != state) {
660 		if (cursor_state) {
661 			/* turn off the cursor */
662 			video_invertchar(old_col * VIDEO_FONT_WIDTH,
663 					 old_row * VIDEO_FONT_HEIGHT +
664 					 video_logo_height);
665 		} else {
666 			/* turn off the cursor and record where it is */
667 			video_invertchar(console_col * VIDEO_FONT_WIDTH,
668 					 console_row * VIDEO_FONT_HEIGHT +
669 					 video_logo_height);
670 			old_col = console_col;
671 			old_row = console_row;
672 		}
673 		cursor_state = state;
674 	}
675 }
676 #endif
677 
678 #ifndef VIDEO_HW_RECTFILL
679 static void memsetl(int *p, int c, int v)
680 {
681 	while (c--)
682 		*(p++) = v;
683 }
684 #endif
685 
686 #ifndef VIDEO_HW_BITBLT
687 static void memcpyl(int *d, int *s, int c)
688 {
689 	while (c--)
690 		*(d++) = *(s++);
691 }
692 #endif
693 
694 static void console_clear_line(int line, int begin, int end)
695 {
696 #ifdef VIDEO_HW_RECTFILL
697 	video_hw_rectfill(VIDEO_PIXEL_SIZE,		/* bytes per pixel */
698 			  VIDEO_FONT_WIDTH * begin,	/* dest pos x */
699 			  video_logo_height +
700 			  VIDEO_FONT_HEIGHT * line,	/* dest pos y */
701 			  VIDEO_FONT_WIDTH * (end - begin + 1), /* fr. width */
702 			  VIDEO_FONT_HEIGHT,		/* frame height */
703 			  bgx				/* fill color */
704 		);
705 #else
706 	if (begin == 0 && (end + 1) == CONSOLE_COLS) {
707 		memsetl(CONSOLE_ROW_FIRST +
708 			CONSOLE_ROW_SIZE * line,	/* offset of row */
709 			CONSOLE_ROW_SIZE >> 2,		/* length of row */
710 			bgx				/* fill color */
711 		);
712 	} else {
713 		void *offset;
714 		int i, size;
715 
716 		offset = CONSOLE_ROW_FIRST +
717 			 CONSOLE_ROW_SIZE * line +	/* offset of row */
718 			 VIDEO_FONT_WIDTH *
719 			 VIDEO_PIXEL_SIZE * begin;	/* offset of col */
720 		size = VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE * (end - begin + 1);
721 		size >>= 2; /* length to end for memsetl() */
722 		/* fill at col offset of i'th line using bgx as fill color */
723 		for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
724 			memsetl(offset + i * VIDEO_LINE_LEN, size, bgx);
725 	}
726 #endif
727 	if (cfb_do_flush_cache)
728 		flush_cache((ulong)CONSOLE_ROW_FIRST, CONSOLE_SIZE);
729 }
730 
731 static void console_scrollup(void)
732 {
733 	/* copy up rows ignoring the first one */
734 
735 #ifdef VIDEO_HW_BITBLT
736 	video_hw_bitblt(VIDEO_PIXEL_SIZE,	/* bytes per pixel */
737 			0,			/* source pos x */
738 			video_logo_height +
739 				VIDEO_FONT_HEIGHT, /* source pos y */
740 			0,			/* dest pos x */
741 			video_logo_height,	/* dest pos y */
742 			VIDEO_VISIBLE_COLS,	/* frame width */
743 			VIDEO_VISIBLE_ROWS
744 			- video_logo_height
745 			- VIDEO_FONT_HEIGHT	/* frame height */
746 		);
747 #else
748 	memcpyl(CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND,
749 		CONSOLE_SCROLL_SIZE >> 2);
750 #endif
751 	/* clear the last one */
752 	console_clear_line(CONSOLE_ROWS - 1, 0, CONSOLE_COLS - 1);
753 }
754 
755 static void console_back(void)
756 {
757 	console_col--;
758 
759 	if (console_col < 0) {
760 		console_col = CONSOLE_COLS - 1;
761 		console_row--;
762 		if (console_row < 0)
763 			console_row = 0;
764 	}
765 }
766 
767 static void console_newline(void)
768 {
769 	console_row++;
770 	console_col = 0;
771 
772 	/* Check if we need to scroll the terminal */
773 	if (console_row >= CONSOLE_ROWS) {
774 		/* Scroll everything up */
775 		console_scrollup();
776 
777 		/* Decrement row number */
778 		console_row--;
779 	}
780 }
781 
782 static void console_cr(void)
783 {
784 	console_col = 0;
785 }
786 
787 void video_putc(const char c)
788 {
789 	static int nl = 1;
790 
791 	CURSOR_OFF;
792 
793 	switch (c) {
794 	case 13:		/* back to first column */
795 		console_cr();
796 		break;
797 
798 	case '\n':		/* next line */
799 		if (console_col || (!console_col && nl))
800 			console_newline();
801 		nl = 1;
802 		break;
803 
804 	case 9:		/* tab 8 */
805 		console_col |= 0x0008;
806 		console_col &= ~0x0007;
807 
808 		if (console_col >= CONSOLE_COLS)
809 			console_newline();
810 		break;
811 
812 	case 8:		/* backspace */
813 		console_back();
814 		break;
815 
816 	case 7:		/* bell */
817 		break;	/* ignored */
818 
819 	default:		/* draw the char */
820 		video_putchar(console_col * VIDEO_FONT_WIDTH,
821 			      console_row * VIDEO_FONT_HEIGHT, c);
822 		console_col++;
823 
824 		/* check for newline */
825 		if (console_col >= CONSOLE_COLS) {
826 			console_newline();
827 			nl = 0;
828 		}
829 	}
830 	CURSOR_SET;
831 }
832 
833 void video_puts(const char *s)
834 {
835 	int count = strlen(s);
836 
837 	while (count--)
838 		video_putc(*s++);
839 }
840 
841 /*
842  * Do not enforce drivers (or board code) to provide empty
843  * video_set_lut() if they do not support 8 bpp format.
844  * Implement weak default function instead.
845  */
846 void __video_set_lut(unsigned int index, unsigned char r,
847 		     unsigned char g, unsigned char b)
848 {
849 }
850 
851 void video_set_lut(unsigned int, unsigned char, unsigned char, unsigned char)
852 	__attribute__ ((weak, alias("__video_set_lut")));
853 
854 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
855 
856 #define FILL_8BIT_332RGB(r,g,b)	{			\
857 	*fb = ((r>>5)<<5) | ((g>>5)<<2) | (b>>6);	\
858 	fb ++;						\
859 }
860 
861 #define FILL_15BIT_555RGB(r,g,b) {			\
862 	*(unsigned short *)fb =				\
863 		SWAP16((unsigned short)(((r>>3)<<10) |	\
864 					((g>>3)<<5)  |	\
865 					 (b>>3)));	\
866 	fb += 2;					\
867 }
868 
869 #define FILL_16BIT_565RGB(r,g,b) {			\
870 	*(unsigned short *)fb =				\
871 		SWAP16((unsigned short)((((r)>>3)<<11)| \
872 					(((g)>>2)<<5) | \
873 					 ((b)>>3)));	\
874 	fb += 2;					\
875 }
876 
877 #define FILL_32BIT_X888RGB(r,g,b) {			\
878 	*(unsigned long *)fb =				\
879 		SWAP32((unsigned long)(((r<<16) |	\
880 					(g<<8)  |	\
881 					 b)));		\
882 	fb += 4;					\
883 }
884 
885 #ifdef VIDEO_FB_LITTLE_ENDIAN
886 #define FILL_24BIT_888RGB(r,g,b) {			\
887 	fb[0] = b;					\
888 	fb[1] = g;					\
889 	fb[2] = r;					\
890 	fb += 3;					\
891 }
892 #else
893 #define FILL_24BIT_888RGB(r,g,b) {			\
894 	fb[0] = r;					\
895 	fb[1] = g;					\
896 	fb[2] = b;					\
897 	fb += 3;					\
898 }
899 #endif
900 
901 #if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
902 static inline void fill_555rgb_pswap(uchar *fb, int x, u8 r, u8 g, u8 b)
903 {
904 	ushort *dst = (ushort *) fb;
905 	ushort color = (ushort) (((r >> 3) << 10) |
906 				 ((g >> 3) <<  5) |
907 				  (b >> 3));
908 	if (x & 1)
909 		*(--dst) = color;
910 	else
911 		*(++dst) = color;
912 }
913 #endif
914 
915 /*
916  * RLE8 bitmap support
917  */
918 
919 #ifdef CONFIG_VIDEO_BMP_RLE8
920 /* Pre-calculated color table entry */
921 struct palette {
922 	union {
923 		unsigned short w;	/* word */
924 		unsigned int dw;	/* double word */
925 	} ce;				/* color entry */
926 };
927 
928 /*
929  * Helper to draw encoded/unencoded run.
930  */
931 static void draw_bitmap(uchar **fb, uchar *bm, struct palette *p,
932 			int cnt, int enc)
933 {
934 	ulong addr = (ulong) *fb;
935 	int *off;
936 	int enc_off = 1;
937 	int i;
938 
939 	/*
940 	 * Setup offset of the color index in the bitmap.
941 	 * Color index of encoded run is at offset 1.
942 	 */
943 	off = enc ? &enc_off : &i;
944 
945 	switch (VIDEO_DATA_FORMAT) {
946 	case GDF__8BIT_INDEX:
947 		for (i = 0; i < cnt; i++)
948 			*(unsigned char *) addr++ = bm[*off];
949 		break;
950 	case GDF_15BIT_555RGB:
951 	case GDF_16BIT_565RGB:
952 		/* differences handled while pre-calculating palette */
953 		for (i = 0; i < cnt; i++) {
954 			*(unsigned short *) addr = p[bm[*off]].ce.w;
955 			addr += 2;
956 		}
957 		break;
958 	case GDF_32BIT_X888RGB:
959 		for (i = 0; i < cnt; i++) {
960 			*(unsigned long *) addr = p[bm[*off]].ce.dw;
961 			addr += 4;
962 		}
963 		break;
964 	}
965 	*fb = (uchar *) addr;	/* return modified address */
966 }
967 
968 static int display_rle8_bitmap(bmp_image_t *img, int xoff, int yoff,
969 			       int width, int height)
970 {
971 	unsigned char *bm;
972 	unsigned char *fbp;
973 	unsigned int cnt, runlen;
974 	int decode = 1;
975 	int x, y, bpp, i, ncolors;
976 	struct palette p[256];
977 	bmp_color_table_entry_t cte;
978 	int green_shift, red_off;
979 	int limit = VIDEO_COLS * VIDEO_ROWS;
980 	int pixels = 0;
981 
982 	x = 0;
983 	y = __le32_to_cpu(img->header.height) - 1;
984 	ncolors = __le32_to_cpu(img->header.colors_used);
985 	bpp = VIDEO_PIXEL_SIZE;
986 	fbp = (unsigned char *) ((unsigned int) video_fb_address +
987 				 (((y + yoff) * VIDEO_COLS) + xoff) * bpp);
988 
989 	bm = (uchar *) img + __le32_to_cpu(img->header.data_offset);
990 
991 	/* pre-calculate and setup palette */
992 	switch (VIDEO_DATA_FORMAT) {
993 	case GDF__8BIT_INDEX:
994 		for (i = 0; i < ncolors; i++) {
995 			cte = img->color_table[i];
996 			video_set_lut(i, cte.red, cte.green, cte.blue);
997 		}
998 		break;
999 	case GDF_15BIT_555RGB:
1000 	case GDF_16BIT_565RGB:
1001 		if (VIDEO_DATA_FORMAT == GDF_15BIT_555RGB) {
1002 			green_shift = 3;
1003 			red_off = 10;
1004 		} else {
1005 			green_shift = 2;
1006 			red_off = 11;
1007 		}
1008 		for (i = 0; i < ncolors; i++) {
1009 			cte = img->color_table[i];
1010 			p[i].ce.w = SWAP16((unsigned short)
1011 					   (((cte.red >> 3) << red_off) |
1012 					    ((cte.green >> green_shift) << 5) |
1013 					    cte.blue >> 3));
1014 		}
1015 		break;
1016 	case GDF_32BIT_X888RGB:
1017 		for (i = 0; i < ncolors; i++) {
1018 			cte = img->color_table[i];
1019 			p[i].ce.dw = SWAP32((cte.red << 16) |
1020 					    (cte.green << 8) |
1021 					     cte.blue);
1022 		}
1023 		break;
1024 	default:
1025 		printf("RLE Bitmap unsupported in video mode 0x%x\n",
1026 		       VIDEO_DATA_FORMAT);
1027 		return -1;
1028 	}
1029 
1030 	while (decode) {
1031 		switch (bm[0]) {
1032 		case 0:
1033 			switch (bm[1]) {
1034 			case 0:
1035 				/* scan line end marker */
1036 				bm += 2;
1037 				x = 0;
1038 				y--;
1039 				fbp = (unsigned char *)
1040 					((unsigned int) video_fb_address +
1041 					 (((y + yoff) * VIDEO_COLS) +
1042 					  xoff) * bpp);
1043 				continue;
1044 			case 1:
1045 				/* end of bitmap data marker */
1046 				decode = 0;
1047 				break;
1048 			case 2:
1049 				/* run offset marker */
1050 				x += bm[2];
1051 				y -= bm[3];
1052 				fbp = (unsigned char *)
1053 					((unsigned int) video_fb_address +
1054 					 (((y + yoff) * VIDEO_COLS) +
1055 					  x + xoff) * bpp);
1056 				bm += 4;
1057 				break;
1058 			default:
1059 				/* unencoded run */
1060 				cnt = bm[1];
1061 				runlen = cnt;
1062 				pixels += cnt;
1063 				if (pixels > limit)
1064 					goto error;
1065 
1066 				bm += 2;
1067 				if (y < height) {
1068 					if (x >= width) {
1069 						x += runlen;
1070 						goto next_run;
1071 					}
1072 					if (x + runlen > width)
1073 						cnt = width - x;
1074 					draw_bitmap(&fbp, bm, p, cnt, 0);
1075 					x += runlen;
1076 				}
1077 next_run:
1078 				bm += runlen;
1079 				if (runlen & 1)
1080 					bm++;	/* 0 padding if length is odd */
1081 			}
1082 			break;
1083 		default:
1084 			/* encoded run */
1085 			cnt = bm[0];
1086 			runlen = cnt;
1087 			pixels += cnt;
1088 			if (pixels > limit)
1089 				goto error;
1090 
1091 			if (y < height) {     /* only draw into visible area */
1092 				if (x >= width) {
1093 					x += runlen;
1094 					bm += 2;
1095 					continue;
1096 				}
1097 				if (x + runlen > width)
1098 					cnt = width - x;
1099 				draw_bitmap(&fbp, bm, p, cnt, 1);
1100 				x += runlen;
1101 			}
1102 			bm += 2;
1103 			break;
1104 		}
1105 	}
1106 	return 0;
1107 error:
1108 	printf("Error: Too much encoded pixel data, validate your bitmap\n");
1109 	return -1;
1110 }
1111 #endif
1112 
1113 /*
1114  * Display the BMP file located at address bmp_image.
1115  */
1116 int video_display_bitmap(ulong bmp_image, int x, int y)
1117 {
1118 	ushort xcount, ycount;
1119 	uchar *fb;
1120 	bmp_image_t *bmp = (bmp_image_t *) bmp_image;
1121 	uchar *bmap;
1122 	ushort padded_line;
1123 	unsigned long width, height, bpp;
1124 	unsigned colors;
1125 	unsigned long compression;
1126 	bmp_color_table_entry_t cte;
1127 
1128 #ifdef CONFIG_VIDEO_BMP_GZIP
1129 	unsigned char *dst = NULL;
1130 	ulong len;
1131 #endif
1132 
1133 	WATCHDOG_RESET();
1134 
1135 	if (!((bmp->header.signature[0] == 'B') &&
1136 	      (bmp->header.signature[1] == 'M'))) {
1137 
1138 #ifdef CONFIG_VIDEO_BMP_GZIP
1139 		/*
1140 		 * Could be a gzipped bmp image, try to decrompress...
1141 		 */
1142 		len = CONFIG_SYS_VIDEO_LOGO_MAX_SIZE;
1143 		dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE);
1144 		if (dst == NULL) {
1145 			printf("Error: malloc in gunzip failed!\n");
1146 			return 1;
1147 		}
1148 		if (gunzip(dst, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE,
1149 			   (uchar *) bmp_image,
1150 			   &len) != 0) {
1151 			printf("Error: no valid bmp or bmp.gz image at %lx\n",
1152 			       bmp_image);
1153 			free(dst);
1154 			return 1;
1155 		}
1156 		if (len == CONFIG_SYS_VIDEO_LOGO_MAX_SIZE) {
1157 			printf("Image could be truncated "
1158 				"(increase CONFIG_SYS_VIDEO_LOGO_MAX_SIZE)!\n");
1159 		}
1160 
1161 		/*
1162 		 * Set addr to decompressed image
1163 		 */
1164 		bmp = (bmp_image_t *) dst;
1165 
1166 		if (!((bmp->header.signature[0] == 'B') &&
1167 		      (bmp->header.signature[1] == 'M'))) {
1168 			printf("Error: no valid bmp.gz image at %lx\n",
1169 			       bmp_image);
1170 			free(dst);
1171 			return 1;
1172 		}
1173 #else
1174 		printf("Error: no valid bmp image at %lx\n", bmp_image);
1175 		return 1;
1176 #endif /* CONFIG_VIDEO_BMP_GZIP */
1177 	}
1178 
1179 	width = le32_to_cpu(bmp->header.width);
1180 	height = le32_to_cpu(bmp->header.height);
1181 	bpp = le16_to_cpu(bmp->header.bit_count);
1182 	colors = le32_to_cpu(bmp->header.colors_used);
1183 	compression = le32_to_cpu(bmp->header.compression);
1184 
1185 	debug("Display-bmp: %ld x %ld  with %d colors\n",
1186 	      width, height, colors);
1187 
1188 	if (compression != BMP_BI_RGB
1189 #ifdef CONFIG_VIDEO_BMP_RLE8
1190 	    && compression != BMP_BI_RLE8
1191 #endif
1192 		) {
1193 		printf("Error: compression type %ld not supported\n",
1194 		       compression);
1195 #ifdef CONFIG_VIDEO_BMP_GZIP
1196 		if (dst)
1197 			free(dst);
1198 #endif
1199 		return 1;
1200 	}
1201 
1202 	padded_line = (((width * bpp + 7) / 8) + 3) & ~0x3;
1203 
1204 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
1205 	if (x == BMP_ALIGN_CENTER)
1206 		x = max(0, (VIDEO_VISIBLE_COLS - width) / 2);
1207 	else if (x < 0)
1208 		x = max(0, VIDEO_VISIBLE_COLS - width + x + 1);
1209 
1210 	if (y == BMP_ALIGN_CENTER)
1211 		y = max(0, (VIDEO_VISIBLE_ROWS - height) / 2);
1212 	else if (y < 0)
1213 		y = max(0, VIDEO_VISIBLE_ROWS - height + y + 1);
1214 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1215 
1216 	if ((x + width) > VIDEO_VISIBLE_COLS)
1217 		width = VIDEO_VISIBLE_COLS - x;
1218 	if ((y + height) > VIDEO_VISIBLE_ROWS)
1219 		height = VIDEO_VISIBLE_ROWS - y;
1220 
1221 	bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset);
1222 	fb = (uchar *) (video_fb_address +
1223 			((y + height - 1) * VIDEO_COLS * VIDEO_PIXEL_SIZE) +
1224 			x * VIDEO_PIXEL_SIZE);
1225 
1226 #ifdef CONFIG_VIDEO_BMP_RLE8
1227 	if (compression == BMP_BI_RLE8) {
1228 		return display_rle8_bitmap(bmp, x, y, width, height);
1229 	}
1230 #endif
1231 
1232 	/* We handle only 4, 8, or 24 bpp bitmaps */
1233 	switch (le16_to_cpu(bmp->header.bit_count)) {
1234 	case 4:
1235 		padded_line -= width / 2;
1236 		ycount = height;
1237 
1238 		switch (VIDEO_DATA_FORMAT) {
1239 		case GDF_32BIT_X888RGB:
1240 			while (ycount--) {
1241 				WATCHDOG_RESET();
1242 				/*
1243 				 * Don't assume that 'width' is an
1244 				 * even number
1245 				 */
1246 				for (xcount = 0; xcount < width; xcount++) {
1247 					uchar idx;
1248 
1249 					if (xcount & 1) {
1250 						idx = *bmap & 0xF;
1251 						bmap++;
1252 					} else
1253 						idx = *bmap >> 4;
1254 					cte = bmp->color_table[idx];
1255 					FILL_32BIT_X888RGB(cte.red, cte.green,
1256 							   cte.blue);
1257 				}
1258 				bmap += padded_line;
1259 				fb -= (VIDEO_VISIBLE_COLS + width) *
1260 					VIDEO_PIXEL_SIZE;
1261 			}
1262 			break;
1263 		default:
1264 			puts("4bpp bitmap unsupported with current "
1265 			     "video mode\n");
1266 			break;
1267 		}
1268 		break;
1269 
1270 	case 8:
1271 		padded_line -= width;
1272 		if (VIDEO_DATA_FORMAT == GDF__8BIT_INDEX) {
1273 			/* Copy colormap */
1274 			for (xcount = 0; xcount < colors; ++xcount) {
1275 				cte = bmp->color_table[xcount];
1276 				video_set_lut(xcount, cte.red, cte.green,
1277 					      cte.blue);
1278 			}
1279 		}
1280 		ycount = height;
1281 		switch (VIDEO_DATA_FORMAT) {
1282 		case GDF__8BIT_INDEX:
1283 			while (ycount--) {
1284 				WATCHDOG_RESET();
1285 				xcount = width;
1286 				while (xcount--) {
1287 					*fb++ = *bmap++;
1288 				}
1289 				bmap += padded_line;
1290 				fb -= (VIDEO_VISIBLE_COLS + width) *
1291 							VIDEO_PIXEL_SIZE;
1292 			}
1293 			break;
1294 		case GDF__8BIT_332RGB:
1295 			while (ycount--) {
1296 				WATCHDOG_RESET();
1297 				xcount = width;
1298 				while (xcount--) {
1299 					cte = bmp->color_table[*bmap++];
1300 					FILL_8BIT_332RGB(cte.red, cte.green,
1301 							 cte.blue);
1302 				}
1303 				bmap += padded_line;
1304 				fb -= (VIDEO_VISIBLE_COLS + width) *
1305 							VIDEO_PIXEL_SIZE;
1306 			}
1307 			break;
1308 		case GDF_15BIT_555RGB:
1309 			while (ycount--) {
1310 #if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
1311 				int xpos = x;
1312 #endif
1313 				WATCHDOG_RESET();
1314 				xcount = width;
1315 				while (xcount--) {
1316 					cte = bmp->color_table[*bmap++];
1317 #if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
1318 					fill_555rgb_pswap(fb, xpos++, cte.red,
1319 							  cte.green,
1320 							  cte.blue);
1321 					fb += 2;
1322 #else
1323 					FILL_15BIT_555RGB(cte.red, cte.green,
1324 							  cte.blue);
1325 #endif
1326 				}
1327 				bmap += padded_line;
1328 				fb -= (VIDEO_VISIBLE_COLS + width) *
1329 							VIDEO_PIXEL_SIZE;
1330 			}
1331 			break;
1332 		case GDF_16BIT_565RGB:
1333 			while (ycount--) {
1334 				WATCHDOG_RESET();
1335 				xcount = width;
1336 				while (xcount--) {
1337 					cte = bmp->color_table[*bmap++];
1338 					FILL_16BIT_565RGB(cte.red, cte.green,
1339 							  cte.blue);
1340 				}
1341 				bmap += padded_line;
1342 				fb -= (VIDEO_VISIBLE_COLS + width) *
1343 							VIDEO_PIXEL_SIZE;
1344 			}
1345 			break;
1346 		case GDF_32BIT_X888RGB:
1347 			while (ycount--) {
1348 				WATCHDOG_RESET();
1349 				xcount = width;
1350 				while (xcount--) {
1351 					cte = bmp->color_table[*bmap++];
1352 					FILL_32BIT_X888RGB(cte.red, cte.green,
1353 							   cte.blue);
1354 				}
1355 				bmap += padded_line;
1356 				fb -= (VIDEO_VISIBLE_COLS + width) *
1357 							VIDEO_PIXEL_SIZE;
1358 			}
1359 			break;
1360 		case GDF_24BIT_888RGB:
1361 			while (ycount--) {
1362 				WATCHDOG_RESET();
1363 				xcount = width;
1364 				while (xcount--) {
1365 					cte = bmp->color_table[*bmap++];
1366 					FILL_24BIT_888RGB(cte.red, cte.green,
1367 							  cte.blue);
1368 				}
1369 				bmap += padded_line;
1370 				fb -= (VIDEO_VISIBLE_COLS + width) *
1371 							VIDEO_PIXEL_SIZE;
1372 			}
1373 			break;
1374 		}
1375 		break;
1376 	case 24:
1377 		padded_line -= 3 * width;
1378 		ycount = height;
1379 		switch (VIDEO_DATA_FORMAT) {
1380 		case GDF__8BIT_332RGB:
1381 			while (ycount--) {
1382 				WATCHDOG_RESET();
1383 				xcount = width;
1384 				while (xcount--) {
1385 					FILL_8BIT_332RGB(bmap[2], bmap[1],
1386 							 bmap[0]);
1387 					bmap += 3;
1388 				}
1389 				bmap += padded_line;
1390 				fb -= (VIDEO_VISIBLE_COLS + width) *
1391 							VIDEO_PIXEL_SIZE;
1392 			}
1393 			break;
1394 		case GDF_15BIT_555RGB:
1395 			while (ycount--) {
1396 #if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
1397 				int xpos = x;
1398 #endif
1399 				WATCHDOG_RESET();
1400 				xcount = width;
1401 				while (xcount--) {
1402 #if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
1403 					fill_555rgb_pswap(fb, xpos++, bmap[2],
1404 							  bmap[1], bmap[0]);
1405 					fb += 2;
1406 #else
1407 					FILL_15BIT_555RGB(bmap[2], bmap[1],
1408 							  bmap[0]);
1409 #endif
1410 					bmap += 3;
1411 				}
1412 				bmap += padded_line;
1413 				fb -= (VIDEO_VISIBLE_COLS + width) *
1414 							VIDEO_PIXEL_SIZE;
1415 			}
1416 			break;
1417 		case GDF_16BIT_565RGB:
1418 			while (ycount--) {
1419 				WATCHDOG_RESET();
1420 				xcount = width;
1421 				while (xcount--) {
1422 					FILL_16BIT_565RGB(bmap[2], bmap[1],
1423 							  bmap[0]);
1424 					bmap += 3;
1425 				}
1426 				bmap += padded_line;
1427 				fb -= (VIDEO_VISIBLE_COLS + width) *
1428 							VIDEO_PIXEL_SIZE;
1429 			}
1430 			break;
1431 		case GDF_32BIT_X888RGB:
1432 			while (ycount--) {
1433 				WATCHDOG_RESET();
1434 				xcount = width;
1435 				while (xcount--) {
1436 					FILL_32BIT_X888RGB(bmap[2], bmap[1],
1437 							   bmap[0]);
1438 					bmap += 3;
1439 				}
1440 				bmap += padded_line;
1441 				fb -= (VIDEO_VISIBLE_COLS + width) *
1442 							VIDEO_PIXEL_SIZE;
1443 			}
1444 			break;
1445 		case GDF_24BIT_888RGB:
1446 			while (ycount--) {
1447 				WATCHDOG_RESET();
1448 				xcount = width;
1449 				while (xcount--) {
1450 					FILL_24BIT_888RGB(bmap[2], bmap[1],
1451 							  bmap[0]);
1452 					bmap += 3;
1453 				}
1454 				bmap += padded_line;
1455 				fb -= (VIDEO_VISIBLE_COLS + width) *
1456 							VIDEO_PIXEL_SIZE;
1457 			}
1458 			break;
1459 		default:
1460 			printf("Error: 24 bits/pixel bitmap incompatible "
1461 				"with current video mode\n");
1462 			break;
1463 		}
1464 		break;
1465 	default:
1466 		printf("Error: %d bit/pixel bitmaps not supported by U-Boot\n",
1467 			le16_to_cpu(bmp->header.bit_count));
1468 		break;
1469 	}
1470 
1471 #ifdef CONFIG_VIDEO_BMP_GZIP
1472 	if (dst) {
1473 		free(dst);
1474 	}
1475 #endif
1476 
1477 	return (0);
1478 }
1479 #endif
1480 
1481 
1482 #ifdef CONFIG_VIDEO_LOGO
1483 void logo_plot(void *screen, int width, int x, int y)
1484 {
1485 
1486 	int xcount, i;
1487 	int skip = (width - VIDEO_LOGO_WIDTH) * VIDEO_PIXEL_SIZE;
1488 	int ycount = video_logo_height;
1489 	unsigned char r, g, b, *logo_red, *logo_blue, *logo_green;
1490 	unsigned char *source;
1491 	unsigned char *dest = (unsigned char *) screen +
1492 		((y * width * VIDEO_PIXEL_SIZE) + x * VIDEO_PIXEL_SIZE);
1493 
1494 #ifdef CONFIG_VIDEO_BMP_LOGO
1495 	source = bmp_logo_bitmap;
1496 
1497 	/* Allocate temporary space for computing colormap */
1498 	logo_red = malloc(BMP_LOGO_COLORS);
1499 	logo_green = malloc(BMP_LOGO_COLORS);
1500 	logo_blue = malloc(BMP_LOGO_COLORS);
1501 	/* Compute color map */
1502 	for (i = 0; i < VIDEO_LOGO_COLORS; i++) {
1503 		logo_red[i] = (bmp_logo_palette[i] & 0x0f00) >> 4;
1504 		logo_green[i] = (bmp_logo_palette[i] & 0x00f0);
1505 		logo_blue[i] = (bmp_logo_palette[i] & 0x000f) << 4;
1506 	}
1507 #else
1508 	source = linux_logo;
1509 	logo_red = linux_logo_red;
1510 	logo_green = linux_logo_green;
1511 	logo_blue = linux_logo_blue;
1512 #endif
1513 
1514 	if (VIDEO_DATA_FORMAT == GDF__8BIT_INDEX) {
1515 		for (i = 0; i < VIDEO_LOGO_COLORS; i++) {
1516 			video_set_lut(i + VIDEO_LOGO_LUT_OFFSET,
1517 				      logo_red[i], logo_green[i],
1518 				      logo_blue[i]);
1519 		}
1520 	}
1521 
1522 	while (ycount--) {
1523 #if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
1524 		int xpos = x;
1525 #endif
1526 		xcount = VIDEO_LOGO_WIDTH;
1527 		while (xcount--) {
1528 			r = logo_red[*source - VIDEO_LOGO_LUT_OFFSET];
1529 			g = logo_green[*source - VIDEO_LOGO_LUT_OFFSET];
1530 			b = logo_blue[*source - VIDEO_LOGO_LUT_OFFSET];
1531 
1532 			switch (VIDEO_DATA_FORMAT) {
1533 			case GDF__8BIT_INDEX:
1534 				*dest = *source;
1535 				break;
1536 			case GDF__8BIT_332RGB:
1537 				*dest = ((r >> 5) << 5) |
1538 					((g >> 5) << 2) |
1539 					 (b >> 6);
1540 				break;
1541 			case GDF_15BIT_555RGB:
1542 #if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
1543 				fill_555rgb_pswap(dest, xpos++, r, g, b);
1544 #else
1545 				*(unsigned short *) dest =
1546 					SWAP16((unsigned short) (
1547 							((r >> 3) << 10) |
1548 							((g >> 3) <<  5) |
1549 							 (b >> 3)));
1550 #endif
1551 				break;
1552 			case GDF_16BIT_565RGB:
1553 				*(unsigned short *) dest =
1554 					SWAP16((unsigned short) (
1555 							((r >> 3) << 11) |
1556 							((g >> 2) <<  5) |
1557 							 (b >> 3)));
1558 				break;
1559 			case GDF_32BIT_X888RGB:
1560 				*(unsigned long *) dest =
1561 					SWAP32((unsigned long) (
1562 							(r << 16) |
1563 							(g <<  8) |
1564 							 b));
1565 				break;
1566 			case GDF_24BIT_888RGB:
1567 #ifdef VIDEO_FB_LITTLE_ENDIAN
1568 				dest[0] = b;
1569 				dest[1] = g;
1570 				dest[2] = r;
1571 #else
1572 				dest[0] = r;
1573 				dest[1] = g;
1574 				dest[2] = b;
1575 #endif
1576 				break;
1577 			}
1578 			source++;
1579 			dest += VIDEO_PIXEL_SIZE;
1580 		}
1581 		dest += skip;
1582 	}
1583 #ifdef CONFIG_VIDEO_BMP_LOGO
1584 	free(logo_red);
1585 	free(logo_green);
1586 	free(logo_blue);
1587 #endif
1588 }
1589 
1590 static void *video_logo(void)
1591 {
1592 	char info[128];
1593 	int space, len;
1594 	__maybe_unused int y_off = 0;
1595 
1596 #ifdef CONFIG_SPLASH_SCREEN
1597 	char *s;
1598 	ulong addr;
1599 
1600 	s = getenv("splashimage");
1601 	if (s != NULL) {
1602 		int x = 0, y = 0;
1603 
1604 		addr = simple_strtoul(s, NULL, 16);
1605 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
1606 		s = getenv("splashpos");
1607 		if (s != NULL) {
1608 			if (s[0] == 'm')
1609 				x = BMP_ALIGN_CENTER;
1610 			else
1611 				x = simple_strtol(s, NULL, 0);
1612 
1613 			s = strchr(s + 1, ',');
1614 			if (s != NULL) {
1615 				if (s[1] == 'm')
1616 					y = BMP_ALIGN_CENTER;
1617 				else
1618 					y = simple_strtol(s + 1, NULL, 0);
1619 			}
1620 		}
1621 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1622 
1623 		if (video_display_bitmap(addr, x, y) == 0) {
1624 			video_logo_height = 0;
1625 			return ((void *) (video_fb_address));
1626 		}
1627 	}
1628 #endif /* CONFIG_SPLASH_SCREEN */
1629 
1630 	logo_plot(video_fb_address, VIDEO_COLS, 0, 0);
1631 
1632 	sprintf(info, " %s", version_string);
1633 
1634 	space = (VIDEO_LINE_LEN / 2 - VIDEO_INFO_X) / VIDEO_FONT_WIDTH;
1635 	len = strlen(info);
1636 
1637 	if (len > space) {
1638 		video_drawchars(VIDEO_INFO_X, VIDEO_INFO_Y,
1639 				(uchar *) info, space);
1640 		video_drawchars(VIDEO_INFO_X + VIDEO_FONT_WIDTH,
1641 				VIDEO_INFO_Y + VIDEO_FONT_HEIGHT,
1642 				(uchar *) info + space, len - space);
1643 		y_off = 1;
1644 	} else
1645 		video_drawstring(VIDEO_INFO_X, VIDEO_INFO_Y, (uchar *) info);
1646 
1647 #ifdef CONFIG_CONSOLE_EXTRA_INFO
1648 	{
1649 		int i, n =
1650 			((video_logo_height -
1651 			  VIDEO_FONT_HEIGHT) / VIDEO_FONT_HEIGHT);
1652 
1653 		for (i = 1; i < n; i++) {
1654 			video_get_info_str(i, info);
1655 			if (!*info)
1656 				continue;
1657 
1658 			len = strlen(info);
1659 			if (len > space) {
1660 				video_drawchars(VIDEO_INFO_X,
1661 						VIDEO_INFO_Y +
1662 						(i + y_off) *
1663 							VIDEO_FONT_HEIGHT,
1664 						(uchar *) info, space);
1665 				y_off++;
1666 				video_drawchars(VIDEO_INFO_X +
1667 						VIDEO_FONT_WIDTH,
1668 						VIDEO_INFO_Y +
1669 							(i + y_off) *
1670 							VIDEO_FONT_HEIGHT,
1671 						(uchar *) info + space,
1672 						len - space);
1673 			} else {
1674 				video_drawstring(VIDEO_INFO_X,
1675 						 VIDEO_INFO_Y +
1676 						 (i + y_off) *
1677 							VIDEO_FONT_HEIGHT,
1678 						 (uchar *) info);
1679 			}
1680 		}
1681 	}
1682 #endif
1683 
1684 	return (video_fb_address + video_logo_height * VIDEO_LINE_LEN);
1685 }
1686 #endif
1687 
1688 static int cfb_fb_is_in_dram(void)
1689 {
1690 	bd_t *bd = gd->bd;
1691 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32) || defined(COFNIG_NDS32) || \
1692 defined(CONFIG_SANDBOX) || defined(CONFIG_X86)
1693 	ulong start, end;
1694 	int i;
1695 
1696 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; ++i) {
1697 		start = bd->bi_dram[i].start;
1698 		end = bd->bi_dram[i].start + bd->bi_dram[i].size - 1;
1699 		if ((ulong)video_fb_address >= start &&
1700 		    (ulong)video_fb_address < end)
1701 			return 1;
1702 	}
1703 #else
1704 	if ((ulong)video_fb_address >= bd->bi_memstart &&
1705 	    (ulong)video_fb_address < bd->bi_memstart + bd->bi_memsize)
1706 		return 1;
1707 #endif
1708 	return 0;
1709 }
1710 
1711 static int video_init(void)
1712 {
1713 	unsigned char color8;
1714 
1715 	pGD = video_hw_init();
1716 	if (pGD == NULL)
1717 		return -1;
1718 
1719 	video_fb_address = (void *) VIDEO_FB_ADRS;
1720 #ifdef CONFIG_VIDEO_HW_CURSOR
1721 	video_init_hw_cursor(VIDEO_FONT_WIDTH, VIDEO_FONT_HEIGHT);
1722 #endif
1723 
1724 	cfb_do_flush_cache = cfb_fb_is_in_dram() && dcache_status();
1725 
1726 	/* Init drawing pats */
1727 	switch (VIDEO_DATA_FORMAT) {
1728 	case GDF__8BIT_INDEX:
1729 		video_set_lut(0x01, CONSOLE_FG_COL, CONSOLE_FG_COL,
1730 			      CONSOLE_FG_COL);
1731 		video_set_lut(0x00, CONSOLE_BG_COL, CONSOLE_BG_COL,
1732 			      CONSOLE_BG_COL);
1733 		fgx = 0x01010101;
1734 		bgx = 0x00000000;
1735 		break;
1736 	case GDF__8BIT_332RGB:
1737 		color8 = ((CONSOLE_FG_COL & 0xe0) |
1738 			  ((CONSOLE_FG_COL >> 3) & 0x1c) |
1739 			  CONSOLE_FG_COL >> 6);
1740 		fgx = (color8 << 24) | (color8 << 16) | (color8 << 8) |
1741 			color8;
1742 		color8 = ((CONSOLE_BG_COL & 0xe0) |
1743 			  ((CONSOLE_BG_COL >> 3) & 0x1c) |
1744 			  CONSOLE_BG_COL >> 6);
1745 		bgx = (color8 << 24) | (color8 << 16) | (color8 << 8) |
1746 			color8;
1747 		break;
1748 	case GDF_15BIT_555RGB:
1749 		fgx = (((CONSOLE_FG_COL >> 3) << 26) |
1750 		       ((CONSOLE_FG_COL >> 3) << 21) |
1751 		       ((CONSOLE_FG_COL >> 3) << 16) |
1752 		       ((CONSOLE_FG_COL >> 3) << 10) |
1753 		       ((CONSOLE_FG_COL >> 3) <<  5) |
1754 			(CONSOLE_FG_COL >> 3));
1755 		bgx = (((CONSOLE_BG_COL >> 3) << 26) |
1756 		       ((CONSOLE_BG_COL >> 3) << 21) |
1757 		       ((CONSOLE_BG_COL >> 3) << 16) |
1758 		       ((CONSOLE_BG_COL >> 3) << 10) |
1759 		       ((CONSOLE_BG_COL >> 3) <<  5) |
1760 			(CONSOLE_BG_COL >> 3));
1761 		break;
1762 	case GDF_16BIT_565RGB:
1763 		fgx = (((CONSOLE_FG_COL >> 3) << 27) |
1764 		       ((CONSOLE_FG_COL >> 2) << 21) |
1765 		       ((CONSOLE_FG_COL >> 3) << 16) |
1766 		       ((CONSOLE_FG_COL >> 3) << 11) |
1767 		       ((CONSOLE_FG_COL >> 2) <<  5) |
1768 			(CONSOLE_FG_COL >> 3));
1769 		bgx = (((CONSOLE_BG_COL >> 3) << 27) |
1770 		       ((CONSOLE_BG_COL >> 2) << 21) |
1771 		       ((CONSOLE_BG_COL >> 3) << 16) |
1772 		       ((CONSOLE_BG_COL >> 3) << 11) |
1773 		       ((CONSOLE_BG_COL >> 2) <<  5) |
1774 			(CONSOLE_BG_COL >> 3));
1775 		break;
1776 	case GDF_32BIT_X888RGB:
1777 		fgx =	(CONSOLE_FG_COL << 16) |
1778 			(CONSOLE_FG_COL <<  8) |
1779 			 CONSOLE_FG_COL;
1780 		bgx =	(CONSOLE_BG_COL << 16) |
1781 			(CONSOLE_BG_COL <<  8) |
1782 			 CONSOLE_BG_COL;
1783 		break;
1784 	case GDF_24BIT_888RGB:
1785 		fgx =	(CONSOLE_FG_COL << 24) |
1786 			(CONSOLE_FG_COL << 16) |
1787 			(CONSOLE_FG_COL <<  8) |
1788 			 CONSOLE_FG_COL;
1789 		bgx =	(CONSOLE_BG_COL << 24) |
1790 			(CONSOLE_BG_COL << 16) |
1791 			(CONSOLE_BG_COL <<  8) |
1792 			 CONSOLE_BG_COL;
1793 		break;
1794 	}
1795 	eorx = fgx ^ bgx;
1796 
1797 #ifdef CONFIG_VIDEO_LOGO
1798 	/* Plot the logo and get start point of console */
1799 	debug("Video: Drawing the logo ...\n");
1800 	video_console_address = video_logo();
1801 #else
1802 	video_console_address = video_fb_address;
1803 #endif
1804 
1805 	/* Initialize the console */
1806 	console_col = 0;
1807 	console_row = 0;
1808 
1809 	return 0;
1810 }
1811 
1812 /*
1813  * Implement a weak default function for boards that optionally
1814  * need to skip the video initialization.
1815  */
1816 int __board_video_skip(void)
1817 {
1818 	/* As default, don't skip test */
1819 	return 0;
1820 }
1821 
1822 int board_video_skip(void)
1823 	__attribute__ ((weak, alias("__board_video_skip")));
1824 
1825 int drv_video_init(void)
1826 {
1827 	int skip_dev_init;
1828 	struct stdio_dev console_dev;
1829 
1830 	/* Check if video initialization should be skipped */
1831 	if (board_video_skip())
1832 		return 0;
1833 
1834 	/* Init video chip - returns with framebuffer cleared */
1835 	skip_dev_init = (video_init() == -1);
1836 
1837 #if !defined(CONFIG_VGA_AS_SINGLE_DEVICE)
1838 	debug("KBD: Keyboard init ...\n");
1839 	skip_dev_init |= (VIDEO_KBD_INIT_FCT == -1);
1840 #endif
1841 
1842 	if (skip_dev_init)
1843 		return 0;
1844 
1845 	/* Init vga device */
1846 	memset(&console_dev, 0, sizeof(console_dev));
1847 	strcpy(console_dev.name, "vga");
1848 	console_dev.ext = DEV_EXT_VIDEO;	/* Video extensions */
1849 	console_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM;
1850 	console_dev.putc = video_putc;	/* 'putc' function */
1851 	console_dev.puts = video_puts;	/* 'puts' function */
1852 	console_dev.tstc = NULL;	/* 'tstc' function */
1853 	console_dev.getc = NULL;	/* 'getc' function */
1854 
1855 #if !defined(CONFIG_VGA_AS_SINGLE_DEVICE)
1856 	/* Also init console device */
1857 	console_dev.flags |= DEV_FLAGS_INPUT;
1858 	console_dev.tstc = VIDEO_TSTC_FCT;	/* 'tstc' function */
1859 	console_dev.getc = VIDEO_GETC_FCT;	/* 'getc' function */
1860 #endif /* CONFIG_VGA_AS_SINGLE_DEVICE */
1861 
1862 	if (stdio_register(&console_dev) != 0)
1863 		return 0;
1864 
1865 	/* Return success */
1866 	return 1;
1867 }
1868