2 #include "../port/lib.h"
7 #include "../port/error.h"
17 DC_UNLOCKVALUE = 0x4758,
20 DC_CURS_ST_OFFSET = 6,
28 geodeenable(VGAscr* scr)
33 p = pcimatch(0, 0x1022, 0x2081);
35 scr->mmio = vmap(p->mem[2].bar&~0x0F, p->mem[2].size);
36 if(!scr->mmio) return;
38 addvgaseg("geodegp", p->mem[1].bar&~0x0F, p->mem[1].size);
39 addvgaseg("geodemmio", p->mem[2].bar&~0x0F, p->mem[2].size);
40 addvgaseg("geodevid", p->mem[3].bar&~0x0F, p->mem[3].size);
43 addvgaseg("geodescreen", scr->paddr, scr->apsize);
44 scr->storage = 0x800000;
48 geodelinear(VGAscr*, int, int)
53 geodecurload(VGAscr* scr, Cursor* curs)
55 uvlong *p, and1, xor1, and2, xor2;
59 if(!scr->mmio) return;
60 p = (uvlong*)((uchar*)scr->vaddr + scr->storage);
64 and1 = 0xFF ^ (*s ^ *c++);
67 and2 = 0xFF ^ (*s ^ *c++);
70 *p++ = (and1 << 56) | (and2 << 48) | 0xFFFFFFFFFFFFLL;
71 *p++ = (xor1 << 56) | (xor2 << 48);
77 scr->offset = curs->offset;
81 geodecurmove(VGAscr* scr, Point p) {
82 if(!scr->mmio) return 1;
83 ((ulong*)scr->mmio)[DC_UNLOCK] = DC_UNLOCKVALUE;
84 ((ulong*)scr->mmio)[DC_CURSOR_X] = p.x + scr->offset.x;
85 ((ulong*)scr->mmio)[DC_CURSOR_Y] = p.y + scr->offset.y;
90 geodecurenable(VGAscr* scr)
93 if(!scr->mmio) return;
94 geodecurload(scr, &arrow);
95 geodecurmove(scr, ZP);
96 ((ulong*)scr->mmio)[DC_UNLOCK] = DC_UNLOCKVALUE;
97 ((ulong*)scr->mmio)[DC_CURS_ST_OFFSET] = scr->storage;
98 ((ulong*)scr->mmio)[DC_GENERAL_CFG] |= CURE;
99 /* set cursor colours */
100 ((ulong*)scr->mmio)[DC_PAL_ADDRESS] = 0x100;
101 ((ulong*)scr->mmio)[DC_PAL_DATA] = -1;
102 ((ulong*)scr->mmio)[DC_PAL_DATA] = 0;
106 geodecurdisable(VGAscr* scr)
108 if(!scr->mmio) return;
109 ((ulong*)scr->mmio)[DC_UNLOCK] = DC_UNLOCKVALUE;
110 ((ulong*)scr->mmio)[DC_GENERAL_CFG] &= ~CURE;
113 VGAdev vgageodedev = {
116 .linear = geodelinear,
120 VGAcur vgageodecur = {