Move aseg-paging to netwatch/

[netwatch.git] / netwatch / main.c

diff --git a/netwatch/main.c b/netwatch/main.c
new file mode 100644 (file)
index 0000000..db49f60
--- /dev/null
+++ b/netwatch/main.c
@@ -0,0 +1,170 @@
+#include <io.h>
+#include <smram.h>
+#include <video_defines.h>
+#include <minilib.h>
+#include <smi.h>
+#include <pci-bother.h>
+#include <fb.h>
+#include <output.h>
+#include "../net/net.h"
+#include "vga-overlay.h"
+#include "packet.h"
+#include "keyboard.h"
+
+unsigned int lastctr = 0;
+extern unsigned int counter;
+
+static int _ibf_ready = 0;
+static int _waiting_for_data = 0;
+static int curdev = 0;
+static int adding_locks_from_time_to_time = 0;
+
+static int _inject_ready()
+{
+       return _ibf_ready && !_waiting_for_data && !adding_locks_from_time_to_time;
+}
+
+void _try_inject()
+{
+       if (kbd_has_injected_scancode() && _inject_ready())
+       {
+               smi_disable_event(SMI_EVENT_DEVTRAP_KBC);
+               int i = 1000;
+               while (inb(0x64) & 0x02)        /* Busy? */
+                       ;
+               outb(0x64, 0xD2);       /* "Inject, please!" */
+               while (inb(0x64) & 0x02)        /* Busy? */
+                       ;
+               outb(0x60, kbd_get_injected_scancode());        /* data */
+               while ((inb(0x64) & 0x02) && i--)       /* wait for completion */
+                       ;
+               outl(0x844, 0x1000);
+               adding_locks_from_time_to_time++;
+               smi_enable_event(SMI_EVENT_DEVTRAP_KBC);
+       } else if (kbd_has_injected_scancode())
+               outputf("Would like to inject, but %d %d", _ibf_ready, _waiting_for_data);
+}
+
+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);
+                       
+                       curdev = (b & 0x20 /* KBD_STAT_MOUSE_OBF */) ? 1 : 0;
+                       
+                       if ((curdev == 0) && kbd_has_injected_scancode())
+                               b |= 0x1;
+
+                       _ibf_ready = (b & 0x2 /* IBF */) ? 0 : 1;
+                       
+                       break;
+               case 0x60:
+                       if ((curdev == 0) && kbd_has_injected_scancode() && !adding_locks_from_time_to_time)
+                               b = kbd_get_injected_scancode();
+                       else
+                               b = inb(0x60);
+                       if (adding_locks_from_time_to_time)
+                               adding_locks_from_time_to_time--;
+                       if ((curdev == 0) && (b == 0x01)) {     /* Escape */
+                               outb(0xCF9, 0x4);       /* Reboot */
+                               return;
+                       }
+                       break;
+
+               default:
+                       b = inb(cts & 0xFFFF);
+               }
+               
+               dologf("READ : %08x (%02x)", cts, b);
+               *(unsigned char*)0xAFFD0 /* EAX */ = b;
+               break;
+       }
+       case 0x30000:
+       {
+               unsigned char b;
+               
+               b = *(unsigned char*)0xAFFD0 /* EAX */;
+               dologf("WRITE: %08x (%02x)", cts, b);
+               if ((cts & 0xFFFF) == 0x64)
+                       switch(b)
+                       {
+                       case 0x60 /*KBD_CCMD_WRITE_MODE*/:
+                       case 0xD2 /*KBD_CCMD_WRITE_OBUF*/:
+                       case 0xD3 /*KBD_CCMD_WRITE_AUX_OBUF*/:
+                       case 0xD4 /*KBD_CCMD_WRITE_MOUSE*/:
+                       case 0xD1 /*KBD_CCMD_WRITE_OUTPORT*/:
+                               _waiting_for_data = 1;  /* These all should not be interrupted. */
+                       }
+               else if ((cts & 0xFFFF) == 0x60)
+                       _waiting_for_data = 0;
+               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);
+       
+       _try_inject();
+       
+       outb(0x80, (ticks++) & 0xFF);
+       
+       if (!fb || fb->curmode.text)
+               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;
+       }
+
+       outputf("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_keysym('A', 1);
+               kbd_inject_keysym('A', 0);
+       } else {
+               *(unsigned long*)0xAFFD4 = 0x2BADD00D;
+       }
+}