nvidia.c

这是一个同样来自贝尔实验室的和UNIX有着渊源的操作系统, 其简洁的设计和实现易于我们学习和理解

		nv->pgraph[0x0170/4] = 0x10010100;
		nv->pgraph[0x0710/4] = 0xFFFFFFFF;
		nv->pgraph[0x0720/4] = 0x00000001;

		nv->pgraph[0x0810/4] = 0x00000000;
		nv->pgraph[0x0608/4] = 0xFFFFFFFF;
	} else {
		nv->pgraph[0x0080/4] = 0xFFFFFFFF;
		nv->pgraph[0x0080/4] = 0x00000000;

		nv->pgraph[0x0140/4] = 0x00000000;
		nv->pgraph[0x0100/4] = 0xFFFFFFFF;
		nv->pgraph[0x0144/4] = 0x10010100;
		nv->pgraph[0x0714/4] = 0xFFFFFFFF;
		nv->pgraph[0x0720/4] = 0x00000001;
		nv->pgraph[0x0710/4] &= 0x0007ff00;
		nv->pgraph[0x0710/4] |= 0x00020100;

		if (nv->arch == 10) {
			nv->pgraph[0x0084/4] = 0x00118700;
			nv->pgraph[0x0088/4] = 0x24E00810;
			nv->pgraph[0x008C/4] = 0x55DE0030;

			for(i = 0; i < 32; i++)
				nv->pgraph[(0x0B00/4) + i] = nv->pfb[(0x0240/4) + i];

			nv->pgraph[0x640/4] = 0;
			nv->pgraph[0x644/4] = 0;
			nv->pgraph[0x684/4] = vga->vmz - 1;
			nv->pgraph[0x688/4] = vga->vmz - 1;

			nv->pgraph[0x0810/4] = 0x00000000;
			nv->pgraph[0x0608/4] = 0xFFFFFFFF;
		} else {
			if (nv->arch >= 40) {
				nv->pgraph[0x0084/4] = 0x401287c0;
				nv->pgraph[0x008C/4] = 0x60de8051;
				nv->pgraph[0x0090/4] = 0x00008000;
				nv->pgraph[0x0610/4] = 0x00be3c5f;


				tmp = nv->pgraph[0x1540] & 0xff;
				for(i = 0; tmp && !(tmp & 1); tmp >>= 1, i++)
					;
				nv->pgraph[0x5000] = i;

				if ((nv->did & 0xfff0) == 0x0040) {
					nv->pgraph[0x09b0/4] = 0x83280fff;
					nv->pgraph[0x09b4/4] = 0x000000a0;
				} else {
					nv->pgraph[0x0820/4] = 0x83280eff;
					nv->pgraph[0x0824/4] = 0x000000a0;
				}

				switch(nv->did & 0xfff0) {
				case 0x0040:
					nv->pgraph[0x09b8/4] = 0x0078e366;
					nv->pgraph[0x09bc/4] = 0x0000014c;
					nv->pfb[0x033C/4] &= 0xffff7fff;
					break;
				case 0x00C0:
				case 0x0120:
					nv->pgraph[0x0828/4] = 0x007596ff;
					nv->pgraph[0x082C/4] = 0x00000108;
					break;
				case 0x0160:
				case 0x01D0:
				case 0x0240:
					nv->pmc[0x1700/4] = nv->pfb[0x020C/4];
					nv->pmc[0x1704/4] = 0;
					nv->pmc[0x1708/4] = 0;
					nv->pmc[0x170C/4] = nv->pfb[0x020C/4];
					nv->pgraph[0x0860/4] = 0;
					nv->pgraph[0x0864/4] = 0;
					nv->pramdac[0x0608/4] |= 0x00100000;
					break;
				case 0x0140:
					nv->pgraph[0x0828/4] = 0x0072cb77;
					nv->pgraph[0x082C/4] = 0x00000108;
					break;
				case 0x0220:
					nv->pgraph[0x0860/4] = 0;
					nv->pgraph[0x0864/4] = 0;
					nv->pramdac[0x0608/4] |= 0x00100000;
					break;
				case 0x0090:
				case 0x0290:
				case 0x0390:
					nv->pgraph[0x0608/4] |= 0x00100000;
					nv->pgraph[0x0828/4] = 0x07830610;
					nv->pgraph[0x082C/4] = 0x0000016A;
					break;
				default:
					break;
				}

				nv->pgraph[0x0b38/4] = 0x2ffff800;
				nv->pgraph[0x0b3c/4] = 0x00006000;
				nv->pgraph[0x032C/4] = 0x01000000;
				nv->pgraph[0x0220/4] = 0x00001200;
			} else if (nv->arch == 30) {
				nv->pgraph[0x0084/4] = 0x40108700;
				nv->pgraph[0x0890/4] = 0x00140000;
				nv->pgraph[0x008C/4] = 0xf00e0431;
				nv->pgraph[0x0090/4] = 0x00008000;
				nv->pgraph[0x0610/4] = 0xf04b1f36;
				nv->pgraph[0x0B80/4] = 0x1002d888;
				nv->pgraph[0x0B88/4] = 0x62ff007f;
			} else {
				nv->pgraph[0x0084/4] = 0x00118700;
				nv->pgraph[0x008C/4] = 0xF20E0431;
				nv->pgraph[0x0090/4] = 0x00000000;
				nv->pgraph[0x009C/4] = 0x00000040;

				if((nv->did & 0x0ff0) >= 0x0250) {
					nv->pgraph[0x0890/4] = 0x00080000;
					nv->pgraph[0x0610/4] = 0x304B1FB6;
					nv->pgraph[0x0B80/4] = 0x18B82880;
					nv->pgraph[0x0B84/4] = 0x44000000;
					nv->pgraph[0x0098/4] = 0x40000080;
					nv->pgraph[0x0B88/4] = 0x000000ff;
				} else {
					nv->pgraph[0x0880/4] = 0x00080000;
					nv->pgraph[0x0094/4] = 0x00000005;
					nv->pgraph[0x0B80/4] = 0x45CAA208;
					nv->pgraph[0x0B84/4] = 0x24000000;
					nv->pgraph[0x0098/4] = 0x00000040;
					nv->pgraph[0x0750/4] = 0x00E00038;
					nv->pgraph[0x0754/4] = 0x00000030;
					nv->pgraph[0x0750/4] = 0x00E10038;
					nv->pgraph[0x0754/4] = 0x00000030;
				}
			}

			if((nv->arch < 40) || ((nv->did & 0xfff0) == 0x0040)){
				for(i = 0; i < 32; i++) {
					nv->pgraph[(0x0900/4) + i] = nv->pfb[(0x0240/4) + i];
					nv->pgraph[(0x6900/4) + i] = nv->pfb[(0x0240/4) + i];
				}
			}
			else{
				if(((nv->did & 0xfff0) == 0x0090)
				|| ((nv->did & 0xfff0) == 0x01D0)
				|| ((nv->did & 0xfff0) == 0x0290)
				|| ((nv->did & 0xfff0) == 0x0390)){
					for(i = 0; i < 60; i++) {
						nv->pgraph[(0x0D00/4) + i] = nv->pfb[(0x0600/4) + i];
						nv->pgraph[(0x6900/4) + i] = nv->pfb[(0x0600/4) + i];
					}
				}
				else{
					for(i = 0; i < 48; i++) {
						nv->pgraph[(0x0900/4) + i] = nv->pfb[(0x0600/4) + i];
						if(((nv->did & 0xfff0) != 0x0160)
						&& ((nv->did & 0xfff0) != 0x0220)
						&& ((nv->did & 0xfff0) != 0x0240))
							nv->pgraph[(0x6900/4) + i] = nv->pfb[(0x0600/4) + i];
					}
				}
			}

			if(nv->arch >= 40) {
				if((nv->did & 0xfff0) == 0x0040) {
					nv->pgraph[0x09A4/4] = nv->pfb[0x0200/4];
					nv->pgraph[0x09A8/4] = nv->pfb[0x0204/4];
					nv->pgraph[0x69A4/4] = nv->pfb[0x0200/4];
					nv->pgraph[0x69A8/4] = nv->pfb[0x0204/4];

					nv->pgraph[0x0820/4] = 0;
					nv->pgraph[0x0824/4] = 0;
					nv->pgraph[0x0864/4] = vga->vmz - 1;
					nv->pgraph[0x0868/4] = vga->vmz - 1;
				} else {
					nv->pgraph[0x09F0/4] = nv->pfb[0x0200/4];
					nv->pgraph[0x09F4/4] = nv->pfb[0x0204/4];
					nv->pgraph[0x69F0/4] = nv->pfb[0x0200/4];
					nv->pgraph[0x69F4/4] = nv->pfb[0x0204/4];

					nv->pgraph[0x0840/4] = 0;
					nv->pgraph[0x0844/4] = 0;
					nv->pgraph[0x08a0/4] = vga->vmz - 1;
					nv->pgraph[0x08a4/4] = vga->vmz - 1;
				}
			} else {
				nv->pgraph[0x09A4/4] = nv->pfb[0x0200/4];
				nv->pgraph[0x09A8/4] = nv->pfb[0x0204/4];
				nv->pgraph[0x0750/4] = 0x00EA0000;
				nv->pgraph[0x0754/4] = nv->pfb[0x0200/4];
				nv->pgraph[0x0750/4] = 0x00EA0004;
				nv->pgraph[0x0754/4] = nv->pfb[0x0204/4];

				nv->pgraph[0x0820/4] = 0;
				nv->pgraph[0x0824/4] = 0;
				nv->pgraph[0x0864/4] = vga->vmz - 1;
				nv->pgraph[0x0868/4] = vga->vmz - 1;
			}

			nv->pgraph[0x0B20/4] = 0x00000000;
			nv->pgraph[0x0B04/4] = 0xFFFFFFFF;
		}
	}

	nv->pgraph[0x053C/4] = 0;
	nv->pgraph[0x0540/4] = 0;
	nv->pgraph[0x0544/4] = 0x00007FFF;
	nv->pgraph[0x0548/4] = 0x00007FFF;

	nv->pfifo[0x0140] = 0x00000000;
	nv->pfifo[0x0141] = 0x00000001;
	nv->pfifo[0x0480] = 0x00000000;
	nv->pfifo[0x0494] = 0x00000000;
	if (nv->arch >= 40)
		nv->pfifo[0x0481] = 0x00010000;
	else
		nv->pfifo[0x0481] = 0x00000100;
	nv->pfifo[0x0490] = 0x00000000;
	nv->pfifo[0x0491] = 0x00000000;
	if (nv->arch >= 40)
		nv->pfifo[0x048B] = 0x00001213;
	else
		nv->pfifo[0x048B] = 0x00001209;
	nv->pfifo[0x0400] = 0x00000000;
	nv->pfifo[0x0414] = 0x00000000;
	nv->pfifo[0x0084] = 0x03000100;
	nv->pfifo[0x0085] = 0x00000110;
	nv->pfifo[0x0086] = 0x00000112;
	nv->pfifo[0x0143] = 0x0000FFFF;
	nv->pfifo[0x0496] = 0x0000FFFF;
	nv->pfifo[0x0050] = 0x00000000;
	nv->pfifo[0x0040] = 0xFFFFFFFF;
	nv->pfifo[0x0415] = 0x00000001;
	nv->pfifo[0x048C] = 0x00000000;
	nv->pfifo[0x04A0] = 0x00000000;
	nv->pfifo[0x0489] = 0x000F0078;
	nv->pfifo[0x0488] = 0x00000001;
	nv->pfifo[0x0480] = 0x00000001;
	nv->pfifo[0x0494] = 0x00000001;
	nv->pfifo[0x0495] = 0x00000001;
	nv->pfifo[0x0140] = 0x00000001;

	if (nv->arch >= 10) {
		if (nv->twoheads) {
			nv->pcrtc[0x0860/4] = nv->head;
			nv->pcrtc[0x2860/4] = nv->head2;
		}
		nv->pramdac[0x0404/4] |= (1 << 25);

		nv->pmc[0x8704/4] = 1;
		nv->pmc[0x8140/4] = 0;
		nv->pmc[0x8920/4] = 0;
		nv->pmc[0x8924/4] = 0;
		nv->pmc[0x8908/4] = vga->vmz - 1;
		nv->pmc[0x890C/4] = vga->vmz - 1;
		nv->pmc[0x1588/4] = 0;

		nv->pcrtc[0x0810/4] = nv->cursorconfig;
		nv->pcrtc[0x0830/4] = nv->displayV - 3;
		nv->pcrtc[0x0834/4] = nv->displayV - 1;

		if (nv->islcd) {
			if((nv->did & 0x0ff0) == 0x0110)
				nv->pramdac[0x0528/4] = nv->dither;
			else if (nv->twoheads)
				nv->pramdac[0x083C/4] = nv->dither;
			vgaxo(Crtx, 0x53, nv->timingH);
			vgaxo(Crtx, 0x54, nv->timingV);
			vgaxo(Crtx, 0x21, 0xFA);
		}
		vgaxo(Crtx, 0x41, nv->extra);
	}

	vgaxo(Crtx, 0x19, nv->repaint0);
	vgaxo(Crtx, 0x1A, nv->repaint1);
	vgaxo(Crtx, 0x25, nv->screen);
	vgaxo(Crtx, 0x28, nv->pixel);
	vgaxo(Crtx, 0x2D, nv->horiz);
	vgaxo(Crtx, 0x30, nv->cursor0);
	vgaxo(Crtx, 0x31, nv->cursor1);
	vgaxo(Crtx, 0x2F, nv->cursor2);
	vgaxo(Crtx, 0x39, nv->interlace);

	if (nv->islcd) {
		nv->pramdac[0x00000848/4] = nv->scale;
		nv->pramdac[0x00000828/4] = nv->crtcsync;
	} else {
		nv->pramdac[0x0000050C/4] = nv->pllsel;
		nv->pramdac[0x00000508/4] = nv->vpll;
		if (nv->twoheads)
			nv->pramdac[0x00000520/4] = nv->vpll2;
		if (nv->twostagepll) {
			nv->pramdac[0x00000578/4] = nv->vpllB;
			nv->pramdac[0x0000057C/4] = nv->vpll2B;
		}
	}
	nv->pramdac[0x00000600/4] = nv->general;

	nv->pcrtc[0x0140/4] = 0;
	nv->pcrtc[0x0100/4] = 1;

	ctlr->flag |= Fload;
}


static void
dump(Vga* vga, Ctlr* ctlr)
{
	Nvidia *nv;
	int m, n, p, f;
	double trouble;

	if((nv = vga->private) == 0)
		return;

	p = (nv->vpll >> 16);
	n = (nv->vpll >> 8) & 0xFF;
	m = nv->vpll & 0xFF;
	trouble = nv->crystalfreq;
	trouble = trouble * n / (m<<p);
	f = trouble+0.5;
	printitem(ctlr->name, "dclk m n p");
	Bprint(&stdout, " %d %d - %d %d\n", f, m, n, p);
	printitem(ctlr->name, "CrystalFreq");
	Bprint(&stdout, " %d Hz\n", nv->crystalfreq);
	printitem(ctlr->name, "arch");
	Bprint(&stdout, " %d\n", nv->arch);
	printitem(ctlr->name, "did");
	Bprint(&stdout, " %.4ux\n", nv->did);
	printitem(ctlr->name, "repaint0");
	Bprint(&stdout, " %ux\n", nv->repaint0);
	printitem(ctlr->name, "repaint1");
	Bprint(&stdout, " %ux\n", nv->repaint1);
	printitem(ctlr->name, "screen");
	Bprint(&stdout, " %ux\n", nv->screen);
	printitem(ctlr->name, "pixel");
	Bprint(&stdout, " %ux\n", nv->pixel);
	printitem(ctlr->name, "horiz");
	Bprint(&stdout, " %ux\n", nv->horiz);
	printitem(ctlr->name, "cursor0");
	Bprint(&stdout, " %ux\n", nv->cursor0);
	printitem(ctlr->name, "cursor1");
	Bprint(&stdout, " %ux\n", nv->cursor1);
	printitem(ctlr->name, "cursor2");
	Bprint(&stdout, " %ux\n", nv->cursor2);
	printitem(ctlr->name, "interlace");
	Bprint(&stdout, " %ux\n", nv->interlace);
	printitem(ctlr->name, "extra");
	Bprint(&stdout, " %ux\n", nv->extra);
	printitem(ctlr->name, "crtcowner");
	Bprint(&stdout, " %ux\n", nv->crtcowner);
	printitem(ctlr->name, "timingH");
	Bprint(&stdout, " %ux\n", nv->timingH);
	printitem(ctlr->name, "timingV");
	Bprint(&stdout, " %ux\n", nv->timingV);
	printitem(ctlr->name, "vpll");
	Bprint(&stdout, " %lux\n", nv->vpll);
	printitem(ctlr->name, "vpllB");
	Bprint(&stdout, " %lux\n", nv->vpllB);
	printitem(ctlr->name, "vpll2");
	Bprint(&stdout, " %lux\n", nv->vpll2);
	printitem(ctlr->name, "vpll2B");
	Bprint(&stdout, " %lux\n", nv->vpll2B);
	printitem(ctlr->name, "pllsel");
	Bprint(&stdout, " %lux\n", nv->pllsel);
	printitem(ctlr->name, "general");
	Bprint(&stdout, " %lux\n", nv->general);
	printitem(ctlr->name, "scale");
	Bprint(&stdout, " %lux\n", nv->scale);
	printitem(ctlr->name, "config");
	Bprint(&stdout, " %lux\n", nv->config);
	printitem(ctlr->name, "head");
	Bprint(&stdout, " %lux\n", nv->head);
	printitem(ctlr->name, "head2");
	Bprint(&stdout, " %lux\n", nv->head2);
	printitem(ctlr->name, "cursorconfig");
	Bprint(&stdout, " %lux\n", nv->cursorconfig);
	printitem(ctlr->name, "dither");
	Bprint(&stdout, " %lux\n", nv->dither);
	printitem(ctlr->name, "crtcsync");
	Bprint(&stdout, " %lux\n", nv->crtcsync);
	printitem(ctlr->name, "islcd");
	Bprint(&stdout, " %d\n", nv->islcd);
	printitem(ctlr->name, "twoheads");
	Bprint(&stdout, " %d\n", nv->twoheads);
	printitem(ctlr->name, "twostagepll");
	Bprint(&stdout, " %d\n", nv->twostagepll);
	printitem(ctlr->name, "crtcnumber");
	Bprint(&stdout, " %d\n", nv->crtcnumber);

	printitem(ctlr->name, "fpwidth");
	Bprint(&stdout, " %d\n", nv->fpwidth);
	printitem(ctlr->name, "fpheight");
	Bprint(&stdout, " %d\n", nv->fpheight);

}


Ctlr nvidia = {
	"nvidia",			/* name */
	snarf,				/* snarf */
	options,			/* options */
	init,				/* init */
	load,				/* load */
	dump,				/* dump */
};

Ctlr nvidiahwgc = {
	"nvidiahwgc",			/* name */
	0,				/* snarf */
	0,				/* options */
	0,				/* init */
	0,				/* load */
	0,				/* dump */
};