X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/4bea7daf0e70a1540b8533c8253c197bb282416e..9c86d6da946b19a513ab554ee12473360d38d93d:/aseg/counter.c

diff --git a/aseg/counter.c b/aseg/counter.c
index 891c075..ab200c1 100644
--- a/aseg/counter.c
+++ b/aseg/counter.c
@@ -1,10 +1,178 @@
-char counter = 0;
+#include <io.h>
+#include <smram.h>
+#include <video_defines.h>
+#include <minilib.h>
+#include <smi.h>
+#include <pci-bother.h>
+#include "../net/net.h"
+#include "vga-overlay.h"
+#include "packet.h"
+#include "keyboard.h"
 
-#define outb(port, val) \
-({ asm volatile("outb %0, %%dx" : : "a" ((unsigned char)(val)) , "d" ((unsigned short)(port))); })
+unsigned int counter = 0;
+unsigned int lastctr = 0;
+unsigned long pcisave;
+unsigned char vgasave;
+static int curdev = 0;	/* 0 if kbd, 1 if mouse */
 
-void __start (void) {
+static void cause_kbd_irq()
+{
+	outl(0x844, 0x0);
+	outl(0x848, 0x0);
+	while (inb(0x64) & 0x1)
+		inb(0x60);
+	outb(0x60, 0xee);	/* Cause an IRQ. */
+	while (inb(0x60) != 0xEE)
+		;
+}
+
+void pci_dump() {
+	unsigned long cts;
+		
+	cts = inl(0x84C);
+	
+	outl(0x840, 0x0);
+	outl(0x848, 0x0);
+	switch(cts&0xF0000)
+	{
+	case 0x20000:
+	{
+		unsigned char b;
+		
+		switch (cts & 0xFFFF)
+		{
+		case 0x64:
+			/* Read the real hardware and mask in our OBF if need be. */
+			b = inb(0x64);
+			if (kbd_has_injected_scancode())
+			{
+				dologf("OS wants to know; we have data");
+				lastctr = counter;
+				b |= 0x01;
+				b &= ~0x20;	/* no mouse for you! */
+				curdev = 0;
+			} else 
+				curdev = (b & 0x20) ? 1 : 0;
+			*(unsigned char*)0xAFFD0 /* EAX */ = b;
+			break;
+		case 0x60:
+			if (kbd_has_injected_scancode())
+			{
+				b = kbd_get_injected_scancode();
+				lastctr = counter;
+				while (inb(0x64) & 0x1)
+					inb(0x60);
+			} else
+				b = inb(0x60);
+			if ((curdev == 0) && (b == 0x01)) {	/* Escape */
+				outb(0xCF9, 0x4);	/* Reboot */
+				return;
+			}
+			
+			/* If there is more nus to come, generate another IRQ. */
+			if (kbd_has_injected_scancode())
+				cause_kbd_irq();
+			
+			*(unsigned char*)0xAFFD0 /* EAX */ = b;
+			break;
+		}
+
+		*(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(0x840, 0x0);
+	outl(0x844, 0x1000);
+	outl(0x848, 0x1000);
+}
+
+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);
+	
+	if (kbd_has_injected_scancode() && (counter > (lastctr + 2)))
+	{
+		smi_disable_event(SMI_EVENT_DEVTRAP_KBC);
+		dolog("Kicking timer");
+		cause_kbd_irq();
+		smi_enable_event(SMI_EVENT_DEVTRAP_KBC);
+	}
+	
+	outb(0x80, (ticks++) & 0xFF);
+	
+	outlog();
+}
+
+void kbc_handler(smi_event_t ev)
+{
+	pci_dump();
+}
+
+void gbl_rls_handler(smi_event_t ev)
+{
+	unsigned long ecx;
+	
+	ecx = *(unsigned long*)0xAFFD4;
+
+	packet_t * packet = check_packet(ecx);
+	if (!packet)
+	{
+		dologf("WARN: bad packet at %08x", ecx);
+		return;
+	}
+
+	dologf("Got packet: type %08x", packet->type);
+
+	if (packet->type == 42) {
+		dump_log((char *)packet->data);
+		*(unsigned long*)0xAFFD4 = 42;
+	} else if (packet->type == 0xAA) {
+		kbd_inject_key('A');
+	} else {
+		*(unsigned long*)0xAFFD4 = 0x2BADD00D;
+	}
+}
+
+void smi_entry(void)
+{
+	char statstr[512];
+	
+	pcisave = inl(0xCF8);
+	vgasave = inb(0x3D4);
+	pci_unbother_all();
+	
 	counter++;
-	outb (0x80, counter);
+	sprintf(statstr, "15-412! %08x %08x", smi_status(), counter);
+	strblit(statstr, 0, 0);
+	
+	eth_poll();
+	
+	if (inl(0x840) & 0x1000)
+	{
+		pci_dump();
+		outl(0x840, 0x1100);
+		outl(0x840, 0x0100);
+	}
+
+	smi_poll();
+	
+	pci_bother_all();
+	outl(0xCF8, pcisave);
+	outb(0x3D4, vgasave);
 }