Joshua Wise's Git repositories - netwatch.git/blame_incremental

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Commit	Line	Data
	1	#include <io.h>
	2
	3	unsigned int counter = 0;
	4	unsigned long pcisave;
	5	unsigned char vgasave;
	6	unsigned char thestr[512];
	7	unsigned char logents[4][41] = {0};
	8
	9	unsigned char vgaread(unsigned char idx)
	10	{
	11	outb(0x3D4, idx);
	12	inb(0x3D5);
	13	}
	14
	15	void strblit(char *src, int r, int c)
	16	{
	17	char destp = (char)(0xB8000UL \| (((unsigned int)vgaread(0xC)) << 9) \| (((unsigned int)vgaread(0xD)) << 1)) + r802 + c*2;
	18	unsigned char smramc;
	19
	20	smramc = pci_read8(0, 0, 0, 0x70);
	21	pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) \| 0x08);
	22	while (*src)
	23	{
	24	(destp++) = (src++);
	25	*(destp++) = 0x1F;
	26	}
	27	pci_write8(0, 0, 0, 0x70, smramc);
	28	}
	29
	30	void outlog()
	31	{
	32	int y, x;
	33	unsigned char smramc;
	34	unsigned char basep = (char)(0xB8000UL \| (((unsigned int)vgaread(0xC)) << 9) \| (((unsigned int)vgaread(0xD)) << 1));
	35
	36	smramc = pci_read8(0, 0, 0, 0x70);
	37	pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) \| 0x08);
	38	for (y = 0; y < 4; y++)
	39	for (x = 40; x < 80; x++)
	40	{
	41	basep[y802+x*2] = ' ';
	42	basep[y802+x*2+1] = 0x1F;
	43	}
	44	pci_write8(0, 0, 0, 0x70, smramc);
	45
	46	for (y = 0; y < 4; y++)
	47	strblit(logents[y], y, 40);
	48
	49	}
	50
	51	void dolog(char *s)
	52	{
	53	memmove(logents[0], logents[1], sizeof(logents[0])*3);
	54	strcpy(logents[3], s);
	55	}
	56
	57	void pci_dump() {
	58	unsigned char s[40];
	59	unsigned long cts;
	60	static int curdev = 0; /* 0 if kbd, 1 if mouse */
	61
	62	cts = inl(0x84C);
	63
	64	outl(0x848, 0x0);
	65
	66	switch(cts&0xF0000)
	67	{
	68	case 0x20000:
	69	{
	70	unsigned char b;
	71	strcpy(s, "READxxxxxxxxxxxxxxxx");
	72	tohex(s+4, cts);
	73	b = inb(cts & 0xFFFF);
	74	tohex(s+12, b);
	75	if ((cts & 0xFFFF) == 0x64)
	76	curdev = (b & 0x20) ? 1 : 0;
	77	if ((curdev == 0) && ((cts & 0xFFFF) == 0x60) && (b == 0x01))
	78	outb(0xCF9, 0x4);
	79	dolog(s);
	80	(unsigned char)0xAFFD0 /* EAX */ = b;
	81	break;
	82	}
	83	case 0x30000:
	84	{
	85	unsigned char b;
	86
	87	strcpy(s, "WRITxxxxxxxxxxxxxxxx");
	88	b = (unsigned char)0xAFFD0 /* EAX */;
	89	tohex(s+4, cts);
	90	tohex(s+12, b);
	91	dolog(s);
	92	outb(cts & 0xFFFF, b);
	93	break;
	94	}
	95	default:
	96	dolog("Unhandled PCI cycle");
	97	}
	98	}
	99
	100	void __start (void)
	101	{
	102	unsigned char smramc;
	103	static int first = 1;
	104
	105	pcisave = inl(0xCF8);
	106	vgasave = inb(0x3D4);
	107
	108	if (first)
	109	{
	110	first = 0;
	111	dolog("NetWatch running...");
	112	}
	113
	114	counter++;
	115	outb(0x80, (counter & 0xFF));
	116
	117	strcpy(thestr, "15-412! xxxxxxxx xxxxxxxx");
	118	tohex(thestr + 8, inl(0x0834));
	119	tohex(thestr + 17, counter);
	120	strblit(thestr, 0, 0);
	121
	122	if (inl(0x834) & 0x20)
	123	dolog("Warning: unhandled APM access");
	124	if (inl(0x834) & 0x1000)
	125	{
	126	if (inl(0x844) & 0x1000) /* devact_sts */
	127	{
	128	pci_dump();
	129	outl(0x848, 0x1000);
	130	outl(0x844, 0x1000);
	131	}
	132	}
	133	if (inl(0x834) & 0x4000)
	134	dolog("Long periodic timer");
	135	if (inl(0x840) & 0x1000)
	136	{
	137	dolog("Caught device monitor trap");
	138	pci_dump();
	139	outl(0x840, 0x1100);
	140	outl(0x840, 0x0100);
	141	}
	142	if (inl(0x834) & ~(0x4160))
	143	{
	144	unsigned char s[40];
	145	strcpy(s, "Unknown: xxxxxxxx");
	146	tohex(s + 9, inl(0x834) & ~(0x140));
	147	dolog(s);
	148	}
	149
	150
	151	outlog();
	152
	153	outl(0xCF8, pcisave);
	154	outb(0x3D4, vgasave);
	155
	156	outl(0x848, 0x1000);
	157	outl(0x834, /0x40/0xFFFF); // ack the periodic IRQ
	158	outb(0x830, (inb(0x830) \| 0x2) & ~0x40);
	159	outb(0x830, inb(0x830) \| 0x40);
	160
	161	}
	162