some more haxing

[netwatch.git] / aseg-paging / main.c

diff --git a/aseg-paging/main.c b/aseg-paging/main.c
new file mode 100644 (file)
index 0000000..7b5c093
--- /dev/null
+++ b/aseg-paging/main.c
@@ -0,0 +1,148 @@
+#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 "../aseg/packet.h"
+#include "../aseg/keyboard.h"
+
+unsigned int lastctr = 0;
+extern unsigned int counter;
+
+static int curdev = 0;
+
+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;
+       }
+}