summaryrefslogtreecommitdiff
path: root/board/MAI/AmigaOneG3SE/video.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/MAI/AmigaOneG3SE/video.c')
-rw-r--r--board/MAI/AmigaOneG3SE/video.c539
1 files changed, 539 insertions, 0 deletions
diff --git a/board/MAI/AmigaOneG3SE/video.c b/board/MAI/AmigaOneG3SE/video.c
new file mode 100644
index 0000000..d0e366c
--- /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 bd_t *bd_global;
+extern block_dev_desc_t * ide_get_dev(int dev);
+extern char version_string[];
+
+void video_banner(void)
+{
+ block_dev_desc_t *ide;
+ 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", bd_global->bi_memsize/(1024*1024));
+ printf("FSB: %ld MHz\n", bd_global->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
+}
generated by cgit v1.1 at 2024-11-15 23:59:06 +0000