diff options
Diffstat (limited to 'board/MAI/AmigaOneG3SE/video.c')
-rwxr-xr-x | board/MAI/AmigaOneG3SE/video.c | 539 |
1 files changed, 539 insertions, 0 deletions
diff --git a/board/MAI/AmigaOneG3SE/video.c b/board/MAI/AmigaOneG3SE/video.c new file mode 100755 index 0000000..36e3c62 --- /dev/null +++ b/board/MAI/AmigaOneG3SE/video.c @@ -0,0 +1,539 @@ +/* + * (C) Copyright 2002 + * Hyperion Entertainment, Hans-JoergF@hyperion-entertainment.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <devices.h> +#include "memio.h" +#include <part.h> + +unsigned char *cursor_position; +unsigned int cursor_row; +unsigned int cursor_col; + +unsigned char current_attr; + +unsigned int video_numrows = 25; +unsigned int video_numcols = 80; +unsigned int video_scrolls = 0; + +#define VIDEO_BASE (unsigned char *)0xFD0B8000 +#define VIDEO_ROWS video_numrows +#define VIDEO_COLS video_numcols +#define VIDEO_PITCH (2 * video_numcols) +#define VIDEO_SIZE (video_numrows * video_numcols * 2) +#define VIDEO_NAME "vga" + +void video_test(void); +void video_putc(char ch); +void video_puts(char *string); +void video_scroll(int rows); +void video_banner(void); +int video_init(void); +int video_start(void); +int video_rows(void); +int video_cols(void); + +char *prompt_string = "=>"; + +void video_set_color(unsigned char attr) +{ + unsigned char *fb = (unsigned char *)VIDEO_BASE; + int i; + + current_attr = video_get_attr(); + + for (i=0; i<VIDEO_SIZE; i+=2) + { + *(fb+i+1) = current_attr; + } +} + +unsigned char video_get_attr(void) +{ + char *s; + unsigned char attr; + + attr = 0x0f; + + s = getenv("vga_fg_color"); + if (s) + { + attr = atoi(s); + } + + s = getenv("vga_bg_color"); + if (s) + { + attr |= atoi(s)<<4; + } + + return attr; +} + +int video_inited = 0; + +int drv_video_init(void) +{ + int error, devices = 1 ; + device_t vgadev ; + if (video_inited) return 1; + video_inited = 1; + video_init(); + memset (&vgadev, 0, sizeof(vgadev)); + + strcpy(vgadev.name, VIDEO_NAME); + vgadev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM; + vgadev.putc = video_putc; + vgadev.puts = video_puts; + vgadev.getc = NULL; + vgadev.tstc = NULL; + vgadev.start = video_start; + + error = device_register (&vgadev); + + if (error == 0) + { + char *s = getenv("stdout"); + if (s && strcmp(s, VIDEO_NAME)==0) + { + if (overwrite_console()) return 1; + error = console_assign(stdout, VIDEO_NAME); + if (error == 0) return 1; + else return error; + } + return 1; + } + + return error; +} + +int video_init(void) +{ + cursor_position = VIDEO_BASE; /* Color text display base */ + cursor_row = 0; + cursor_col = 0; + current_attr = video_get_attr(); /* Currently selected value for attribute. */ +/* video_test(); */ + video_set_color(current_attr); + + return 0; +} + +void video_set_cursor(int line, int column) +{ + unsigned short offset = line*video_numcols + column; + cursor_position = VIDEO_BASE + line*VIDEO_PITCH + column*2; + out_byte(0x3D4, 0x0E); + out_byte(0x3D5, offset/256); + out_byte(0x3D4, 0x0F); + out_byte(0x3D5, offset%256); +} + +void video_write_char(int character) +{ + *cursor_position = character; + *(cursor_position+1) = current_attr; +} + +void video_test(void) +{ + +} + +void video_putc(char ch) +{ + switch(ch) + { + case '\n': + cursor_col = 0; + cursor_row += 1; + break; + case '\r': + cursor_col = 0; + break; + case '\b': + if (cursor_col) cursor_col--; + else return; + break; + case '\t': + cursor_col = (cursor_col/8+1)*8; + break; + default: + video_write_char(ch); + cursor_col++; + if (cursor_col > VIDEO_COLS-1) + { + cursor_row++; + cursor_col=0; + } + } + + if (cursor_row > VIDEO_ROWS-1) + video_scroll(1); + video_set_cursor(cursor_row, cursor_col); +} + +void video_scroll(int rows) +{ + unsigned short clear = ((unsigned short)current_attr) | (' '<<8); + unsigned short* addr16 = &((unsigned short *)VIDEO_BASE)[(VIDEO_ROWS-rows)*VIDEO_COLS]; + int i; + char *s; + + s = getenv("vga_askscroll"); + video_scrolls += rows; + + if (video_scrolls >= video_numrows) + { + if (s && strcmp(s, "yes")) + { + while (-1 == tstc()); + } + + video_scrolls = 0; + } + + + memcpy(VIDEO_BASE, VIDEO_BASE+rows*(VIDEO_COLS*2), (VIDEO_ROWS-rows)*(VIDEO_COLS*2)); + for (i = 0 ; i < rows * VIDEO_COLS ; i++) + addr16[i] = clear; + cursor_row-=rows; + cursor_col=0; +} + +void video_puts(char *string) +{ + while (*string) + { + video_putc(*string); + string++; + } +} + +int video_start(void) +{ + return 0; +} + +unsigned char video_single_box[] = +{ + 218, 196, 191, + 179, 179, + 192, 196, 217 +}; + +unsigned char video_double_box[] = +{ + 201, 205, 187, + 186, 186, + 200, 205, 188 +}; + +unsigned char video_single_title[] = +{ + 195, 196, 180, 180, 195 +}; + +unsigned char video_double_title[] = +{ + 204, 205, 185, 181, 198 +}; + +#define SINGLE_BOX 0 +#define DOUBLE_BOX 1 + +unsigned char *video_addr(int x, int y) +{ + return VIDEO_BASE + 2*(VIDEO_COLS*y) + 2*x; +} + +void video_bios_print_string(char *s, int x, int y, int attr, int count) +{ + int cattr = current_attr; + if (attr != -1) current_attr = attr; + video_set_cursor(x,y); + while (count) + { + char c = *s++; + if (attr == -1) current_attr = *s++; + video_putc(c); + count--; + } +} + +void video_draw_box(int style, int attr, char *title, int separate, int x, int y, int w, int h) +{ + unsigned char *fb, *fb2; + unsigned char *st = (style == SINGLE_BOX)?video_single_box : video_double_box; + unsigned char *ti = (style == SINGLE_BOX)?video_single_title : video_double_title; + int i; + + fb = video_addr(x,y); + *(fb) = st[0]; + *(fb+1) = attr; + fb += 2; + + fb2 = video_addr(x,y+h-1); + *(fb2) = st[5]; + *(fb2+1) = attr; + fb2 += 2; + + for (i=0; i<w-2;i++) + { + *fb = st[1]; + fb++; + *fb = attr; + fb++; + + *fb2 = st[6]; + fb2++; + *fb2 = attr; + fb2++; + + } + *fb = st[2]; + *(fb+1) = attr; + + *fb2 = st[7]; + *(fb2+1) = attr; + + fb = video_addr(x, y+1); + fb2 = video_addr(x+w-1, y+1); + for (i=0; i<h-2; i++) + { + *fb = st[3]; + *(fb+1) = attr; fb += 2*VIDEO_COLS; + + *fb2 = st[4]; + *(fb2+1) = attr; fb2 += 2*VIDEO_COLS; + } + + /* Draw title */ + if (title) + { + if (separate == 0) + { + fb = video_addr(x+1, y); + *fb = ti[3]; + fb += 2; + *fb = ' '; + fb += 2; + while (*title) + { + *fb = *title; + fb ++; + *fb = attr; + fb++; title++; + } + *fb = ' '; + fb += 2; + *fb = ti[4]; + } + else + { + fb = video_addr(x, y+2); + *fb = ti[0]; + fb += 2; + for (i=0; i<w-2; i++) + { + *fb = ti[1]; + *(fb+1) = attr; + fb += 2; + } + *fb = ti[2]; + *(fb+1) = attr; + fb = video_addr(x+1, y+1); + for (i=0; i<w-2; i++) + { + *fb = ' '; + *(fb+1) = attr; + fb += 2; + } + fb = video_addr(x+2, y+1); + + while (*title) + { + *fb = *title; + *(fb+1) = attr; + fb += 2; + title++; + } + } + } + +} + +void video_draw_text(int x, int y, int attr, char *text) +{ + unsigned char *fb = video_addr(x,y); + while (*text) + { + *fb++ = *text++; + *fb++ = attr; + } +} + +void video_save_rect(int x, int y, int w, int h, void *save_area, int clearchar, int clearattr) +{ + unsigned char *save = (unsigned char *)save_area; + unsigned char *fb = video_addr(x,y); + int i,j; + for (i=0; i<h; i++) + { + unsigned char *fbb = fb; + for (j=0; j<w; j++) + { + *save ++ = *fb; + if (clearchar > 0) *fb = clearchar; + fb ++; + *save ++ = *fb; + if (clearattr > 0) *fb = clearattr; + } + fb = fbb + 2*VIDEO_COLS; + } +} + +void video_restore_rect(int x, int y, int w, int h, void *save_area) +{ + unsigned char *save = (unsigned char *)save_area; + unsigned char *fb = video_addr(x,y); + int i,j; + for (i=0; i<h; i++) + { + unsigned char *fbb = fb; + for (j=0; j<w; j++) + { + *fb ++ = *save ++; + *fb ++ = *save ++; + } + fb = fbb + 2*VIDEO_COLS; + } + +} + +int video_rows(void) +{ + return VIDEO_ROWS; +} + +int video_cols(void) +{ + return VIDEO_COLS; +} + +void video_size(int cols, int rows) +{ + video_numrows = rows; + video_numcols = cols; +} + +void video_clear(void) +{ + unsigned short *fbb = (unsigned short *)0xFD0B8000; + int i,j; + unsigned short val = 0x2000 | current_attr; + + for (i=0; i<video_rows(); i++) + { + for (j=0; j<video_cols(); j++) + { + *fbb++ = val; + } + } + video_set_cursor(0,0); + cursor_row = 0; + cursor_col = 0; +} + +#ifdef EASTEREGG +int video_easteregg_active = 0; + +void video_easteregg(void) +{ + video_easteregg_active = 1; +} +#endif + +extern block_dev_desc_t * ide_get_dev(int dev); +extern char version_string[]; + +void video_banner(void) +{ + block_dev_desc_t *ide; + DECLARE_GLOBAL_DATA_PTR; + int i; + char *s; + int maxdev; + + + if (video_inited == 0) return; +#ifdef EASTEREGG + if (video_easteregg_active) + { + prompt_string=""; + video_clear(); + printf("\n"); + printf(" **** COMMODORE 64 BASIC X2 ****\n\n"); + printf(" 64K RAM SYSTEM 38911 BASIC BYTES FREE\n\n"); + printf("READY\n"); + } + else + { +#endif + s = getenv("ide_maxbus"); + if (s) + maxdev = atoi(s) * 2; + else + maxdev = 4; + + s = getenv("stdout"); + if (s && strcmp(s, "serial") == 0) + return; + + video_clear(); + printf("%s\n\nCPU: ", version_string); + checkcpu(); + printf("DRAM: %ld MB\n", gd->bd->bi_memsize/(1024*1024)); + printf("FSB: %ld MHz\n", gd->bd->bi_busfreq/1000000); + + printf("\n---- Disk summary ----\n"); + for (i = 0; i < maxdev; i++) + { + ide = ide_get_dev(i); + printf("Device %d: ", i); + dev_print(ide); + } + +/* + video_draw_box(SINGLE_BOX, 0x0F, "Test 1", 0, 0,18, 72, 4); + video_draw_box(DOUBLE_BOX, 0x0F, "Test 2", 1, 4,10, 50, 6); + video_draw_box(DOUBLE_BOX, 0x0F, "Test 3", 0, 40, 3, 20, 5); + + video_draw_text(1, 4, 0x2F, "Highlighted options"); + video_draw_text(1, 5, 0x0F, "Non-selected option"); + video_draw_text(1, 6, 0x07, "disabled option"); +*/ +#ifdef EASTEREGG + } +#endif +} |