3 * Hyperion Entertainment, Hans-JoergF@hyperion-entertainment.com
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
29 unsigned char *cursor_position;
30 unsigned int cursor_row;
31 unsigned int cursor_col;
33 unsigned char current_attr;
35 unsigned int video_numrows = 25;
36 unsigned int video_numcols = 80;
37 unsigned int video_scrolls = 0;
39 #define VIDEO_BASE (unsigned char *)0xFD0B8000
40 #define VIDEO_ROWS video_numrows
41 #define VIDEO_COLS video_numcols
42 #define VIDEO_PITCH (2 * video_numcols)
43 #define VIDEO_SIZE (video_numrows * video_numcols * 2)
44 #define VIDEO_NAME "vga"
46 void video_test(void);
47 void video_putc(char ch);
48 void video_puts(char *string);
49 void video_scroll(int rows);
50 void video_banner(void);
52 int video_start(void);
56 char *prompt_string = "=>";
58 void video_set_color(unsigned char attr)
60 unsigned char *fb = (unsigned char *)VIDEO_BASE;
63 current_attr = video_get_attr();
65 for (i=0; i<VIDEO_SIZE; i+=2)
67 *(fb+i+1) = current_attr;
71 unsigned char video_get_attr(void)
78 s = getenv("vga_fg_color");
84 s = getenv("vga_bg_color");
95 int drv_video_init(void)
97 int error, devices = 1 ;
99 if (video_inited) return 1;
102 memset (&vgadev, 0, sizeof(vgadev));
104 strcpy(vgadev.name, VIDEO_NAME);
105 vgadev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM;
106 vgadev.putc = video_putc;
107 vgadev.puts = video_puts;
110 vgadev.start = video_start;
112 error = device_register (&vgadev);
116 char *s = getenv("stdout");
117 if (s && strcmp(s, VIDEO_NAME)==0)
119 if (overwrite_console()) return 1;
120 error = console_assign(stdout, VIDEO_NAME);
121 if (error == 0) return 1;
132 cursor_position = VIDEO_BASE; /* Color text display base */
135 current_attr = video_get_attr(); /* Currently selected value for attribute. */
137 video_set_color(current_attr);
142 void video_set_cursor(int line, int column)
144 unsigned short offset = line*video_numcols + column;
145 cursor_position = VIDEO_BASE + line*VIDEO_PITCH + column*2;
146 out_byte(0x3D4, 0x0E);
147 out_byte(0x3D5, offset/256);
148 out_byte(0x3D4, 0x0F);
149 out_byte(0x3D5, offset%256);
152 void video_write_char(int character)
154 *cursor_position = character;
155 *(cursor_position+1) = current_attr;
158 void video_test(void)
163 void video_putc(char ch)
175 if (cursor_col) cursor_col--;
179 cursor_col = (cursor_col/8+1)*8;
182 video_write_char(ch);
184 if (cursor_col > VIDEO_COLS-1)
191 if (cursor_row > VIDEO_ROWS-1)
193 video_set_cursor(cursor_row, cursor_col);
196 void video_scroll(int rows)
198 unsigned short clear = ((unsigned short)current_attr) | (' '<<8);
199 unsigned short* addr16 = &((unsigned short *)VIDEO_BASE)[(VIDEO_ROWS-rows)*VIDEO_COLS];
203 s = getenv("vga_askscroll");
204 video_scrolls += rows;
206 if (video_scrolls >= video_numrows)
208 if (s && strcmp(s, "yes"))
210 while (-1 == tstc());
217 memcpy(VIDEO_BASE, VIDEO_BASE+rows*(VIDEO_COLS*2), (VIDEO_ROWS-rows)*(VIDEO_COLS*2));
218 for (i = 0 ; i < rows * VIDEO_COLS ; i++)
224 void video_puts(char *string)
233 int video_start(void)
238 unsigned char video_single_box[] =
245 unsigned char video_double_box[] =
252 unsigned char video_single_title[] =
254 195, 196, 180, 180, 195
257 unsigned char video_double_title[] =
259 204, 205, 185, 181, 198
265 unsigned char *video_addr(int x, int y)
267 return VIDEO_BASE + 2*(VIDEO_COLS*y) + 2*x;
270 void video_bios_print_string(char *s, int x, int y, int attr, int count)
272 int cattr = current_attr;
273 if (attr != -1) current_attr = attr;
274 video_set_cursor(x,y);
278 if (attr == -1) current_attr = *s++;
284 void video_draw_box(int style, int attr, char *title, int separate, int x, int y, int w, int h)
286 unsigned char *fb, *fb2;
287 unsigned char *st = (style == SINGLE_BOX)?video_single_box : video_double_box;
288 unsigned char *ti = (style == SINGLE_BOX)?video_single_title : video_double_title;
291 fb = video_addr(x,y);
296 fb2 = video_addr(x,y+h-1);
320 fb = video_addr(x, y+1);
321 fb2 = video_addr(x+w-1, y+1);
322 for (i=0; i<h-2; i++)
325 *(fb+1) = attr; fb += 2*VIDEO_COLS;
328 *(fb2+1) = attr; fb2 += 2*VIDEO_COLS;
336 fb = video_addr(x+1, y);
354 fb = video_addr(x, y+2);
357 for (i=0; i<w-2; i++)
365 fb = video_addr(x+1, y+1);
366 for (i=0; i<w-2; i++)
372 fb = video_addr(x+2, y+1);
386 void video_draw_text(int x, int y, int attr, char *text)
388 unsigned char *fb = video_addr(x,y);
396 void video_save_rect(int x, int y, int w, int h, void *save_area, int clearchar, int clearattr)
398 unsigned char *save = (unsigned char *)save_area;
399 unsigned char *fb = video_addr(x,y);
403 unsigned char *fbb = fb;
407 if (clearchar > 0) *fb = clearchar;
410 if (clearattr > 0) *fb = clearattr;
412 fb = fbb + 2*VIDEO_COLS;
416 void video_restore_rect(int x, int y, int w, int h, void *save_area)
418 unsigned char *save = (unsigned char *)save_area;
419 unsigned char *fb = video_addr(x,y);
423 unsigned char *fbb = fb;
429 fb = fbb + 2*VIDEO_COLS;
444 void video_size(int cols, int rows)
446 video_numrows = rows;
447 video_numcols = cols;
450 void video_clear(void)
452 unsigned short *fbb = (unsigned short *)0xFD0B8000;
454 unsigned short val = 0x2000 | current_attr;
456 for (i=0; i<video_rows(); i++)
458 for (j=0; j<video_cols(); j++)
463 video_set_cursor(0,0);
469 int video_easteregg_active = 0;
471 void video_easteregg(void)
473 video_easteregg_active = 1;
477 extern block_dev_desc_t * ide_get_dev(int dev);
478 extern char version_string[];
480 void video_banner(void)
482 block_dev_desc_t *ide;
483 DECLARE_GLOBAL_DATA_PTR;
489 if (video_inited == 0) return;
491 if (video_easteregg_active)
496 printf(" **** COMMODORE 64 BASIC X2 ****\n\n");
497 printf(" 64K RAM SYSTEM 38911 BASIC BYTES FREE\n\n");
503 s = getenv("ide_maxbus");
505 maxdev = atoi(s) * 2;
509 s = getenv("stdout");
510 if (s && strcmp(s, "serial") == 0)
514 printf("%s\n\nCPU: ", version_string);
516 printf("DRAM: %ld MB\n", gd->bd->bi_memsize/(1024*1024));
517 printf("FSB: %ld MHz\n", gd->bd->bi_busfreq/1000000);
519 printf("\n---- Disk summary ----\n");
520 for (i = 0; i < maxdev; i++)
522 ide = ide_get_dev(i);
523 printf("Device %d: ", i);
528 video_draw_box(SINGLE_BOX, 0x0F, "Test 1", 0, 0,18, 72, 4);
529 video_draw_box(DOUBLE_BOX, 0x0F, "Test 2", 1, 4,10, 50, 6);
530 video_draw_box(DOUBLE_BOX, 0x0F, "Test 3", 0, 40, 3, 20, 5);
532 video_draw_text(1, 4, 0x2F, "Highlighted options");
533 video_draw_text(1, 5, 0x0F, "Non-selected option");
534 video_draw_text(1, 6, 0x07, "disabled option");