foo

[eightysix] / kern / src / disp.c

diff --git a/kern/src/disp.c b/kern/src/disp.c
deleted file mode 100644 (file)
index e5fbd9a..0000000
--- a/kern/src/disp.c
+++ /dev/null
@@ -1,164 +0,0 @@
-#include "disp.h"
-#include "asmutil.h"
-
-static void detect_video(void);
-static int detect_vgainfo(void);
-static int detect_egainfo(void);
-static void detect_eqlist(void);
-
-struct console con_disp = { clear_disp, disp_putc, 0 };
-
-static uint16_t __far *vmem;
-static uint16_t cur_attr;
-static int cur_x, cur_y;
-static int cur_scroll;
-static int mono;
-
-void init_disp(void)
-{
-       detect_video();
-}
-
-static void detect_video(void)
-{
-       mono = 0;
-       disp_type = DISP_UNK;
-
-       if(detect_vgainfo() == 0) {
-               goto done;
-       }
-       if(detect_egainfo() == 0) {
-               goto done;
-       }
-       detect_eqlist();
-
-done:
-       vmem = mono ? MK_FP(0xb000, 0) : MK_FP(0xb800, 0);
-}
-
-static int detect_vgainfo(void)
-{
-       union regs regs;
-
-       regs.w.ax = 0x1a00;
-       int86(0x10, &regs, &regs);
-       if(regs.h.al != 0x1a) {
-               return -1;
-       }
-
-       switch(regs.h.bl) {
-       case 1:
-               disp_type = DISP_MDA;
-               mono = 1;
-               break;
-       case 2:
-               disp_type = DISP_CGA;
-               break;
-       case 4:
-               disp_type = DISP_EGA;
-               break;
-       case 5:
-               disp_type = DISP_EGA;
-               mono = 1;
-               break;
-       case 6:
-               disp_type = DISP_PGA;
-               break;
-       case 7:
-               disp_type = DISP_VGA;
-               mono = 1;
-               break;
-       case 8:
-               disp_type = DISP_VGA;
-               break;
-       case 0xa:
-       case 0xc:
-               disp_type = DISP_MCGA;
-               break;
-       case 0xb:
-               disp_type = DISP_MCGA;
-               mono = 1;
-               break;
-       default:
-               return -1;
-       }
-       return 0;
-}
-
-static int detect_egainfo(void)
-{
-       union regs regs;
-
-       regs.w.ax = 0x1200;
-       regs.w.bx = 0xff10;
-       int86(0x10, &regs, &regs);
-       if(regs.h.bh == 0xff) {
-               return -1;
-       }
-
-       disp_type = DISP_EGA;
-       mono = regs.h.bh;
-       return 0;
-}
-
-static void detect_eqlist(void)
-{
-       union regs regs;
-
-       int86(0x11, &regs, &regs);
-       switch(regs.w.ax & 0x30) {
-       case 0:
-               disp_type = DISP_EGA;
-               break;
-
-       case 0x10:
-       case 0x20:
-               disp_type = DISP_CGA;
-               break;
-
-       case 0x30:
-               disp_type = DISP_MDA;
-               mono = 1;
-               break;
-       }
-}
-
-void clear_disp(void)
-{
-}
-
-void scroll_disp(int line)
-{
-}
-
-void set_cursor(int x, int y)
-{
-       cur_x = x;
-       cur_y = y;
-}
-
-void set_fgcolor(int color)
-{
-       cur_attr = (cur_attr & 0xf0) | color;
-}
-
-void set_bgcolor(int color)
-{
-       cur_attr = (cur_attr & 0x0f) | (color << 4);
-}
-
-void draw_glyph(int x, int y, int c, int attr)
-{
-       vmem[y * 80 + x] = (uint16_t)c | ((uint16_t)attr << 8);
-}
-
-void draw_text(int x, int y, const char *s, int attr)
-{
-       uint16_t __far *ptr = vmem + y * 80 + x;
-
-       while(*s) {
-               *ptr++ = (uint16_t)*s++ | ((uint16_t)attr << 8);
-       }
-}
-
-