X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/4bea7daf0e70a1540b8533c8253c197bb282416e..8a677ebb8955dbe1b09e755dbb8343a3b8fdddb1:/aseg/counter.c

diff --git a/aseg/counter.c b/aseg/counter.c
index 891c075..3c22c05 100644
--- a/aseg/counter.c
+++ b/aseg/counter.c
@@ -1,10 +1,91 @@
-char counter = 0;
+#include <io.h>
+#include <smram.h>
+#include <video_defines.h>
+#include <minilib.h>
+#include <smi.h>
+#include "vga-overlay.h"
 
-#define outb(port, val) \
-({ asm volatile("outb %0, %%dx" : : "a" ((unsigned char)(val)) , "d" ((unsigned short)(port))); })
+unsigned int counter = 0;
+unsigned long pcisave;
+unsigned char vgasave;
 
-void __start (void) {
+void pci_dump() {
+	unsigned long cts;
+	static int curdev = 0;	/* 0 if kbd, 1 if mouse */
+		
+	cts = inl(0x84C);
+	
+	outl(0x848, 0x0);
+	outl(0x840, 0x0);
+	switch(cts&0xF0000)
+	{
+	case 0x20000:
+	{
+		unsigned char b;
+		b = inb(cts & 0xFFFF);
+		dologf("READ: %08x (%02x)", cts, b);
+		if ((cts & 0xFFFF) == 0x64)
+			curdev = (b & 0x20) ? 1 : 0;
+		if ((curdev == 0) && ((cts & 0xFFFF) == 0x60) && (b == 0x01))
+			outb(0xCF9, 0x4);
+		*(unsigned char*)0xAFFD0 /* EAX */ = b;
+		break;
+	}
+	case 0x30000:
+	{
+		unsigned char b;
+		
+		b = *(unsigned char*)0xAFFD0 /* EAX */;
+		dologf("WRITE: %08x (%02x)", cts, b);
+		outb(cts & 0xFFFF, b);
+		break;
+	}
+	default:
+		dolog("Unhandled PCI cycle");
+	}
+	
+	outl(0x848, 0x1000);
+	outl(0x840, 0x0100);
+}
+
+void timer_handler(smi_event_t ev)
+{
+	static unsigned int ticks = 0;
+	
+	smi_disable_event(SMI_EVENT_FAST_TIMER);
+	smi_enable_event(SMI_EVENT_FAST_TIMER);
+	
+	outb(0x80, (ticks++) & 0xFF);
+	
+	outlog();
+}
+
+void kbc_handler(smi_event_t ev)
+{
+	pci_dump();
+}
+
+void smi_entry(void)
+{
+	char statstr[512];
+	
+	pcisave = inl(0xCF8);
+	vgasave = inb(0x3D4);
+	
 	counter++;
-	outb (0x80, counter);
+	sprintf(statstr, "15-412! %08x %08x", smi_status(), counter);
+	strblit(statstr, 0, 0);
+	
+	if (inl(0x840) & 0x1000)
+	{
+		pci_dump();
+		outl(0x840, 0x1100);
+		outl(0x840, 0x0100);
+	}
+
+	smi_poll();
+	
+	outl(0xCF8, pcisave);
+	outb(0x3D4, vgasave);
 }