Allow NIC poll routine to do packet chain handling on our behalf.

[netwatch.git] / aseg / counter.c

diff --git a/aseg/counter.c b/aseg/counter.c
index de82574dc50fac9245e3ee564feb3569d174ea04..ab200c107c8c73e441c7ba9211a72688a80e70b4 100644 (file)
--- a/aseg/counter.c
+++ b/aseg/counter.c
@@ -1,55 +1,177 @@
 #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"
 
-char counter = 0;
+unsigned int counter = 0;
+unsigned int lastctr = 0;
 unsigned long pcisave;
 unsigned char vgasave;
-unsigned char thestr[512];
+static int curdev = 0; /* 0 if kbd, 1 if mouse */
 
-void memcpy(char *dst, char *src, int c)
+static void cause_kbd_irq()
 {
-       while (c--)
-               *(dst++) = *(src++);
+       outl(0x844, 0x0);
+       outl(0x848, 0x0);
+       while (inb(0x64) & 0x1)
+               inb(0x60);
+       outb(0x60, 0xee);       /* Cause an IRQ. */
+       while (inb(0x60) != 0xEE)
+               ;
 }
 
-void strcpy(char *dst, char *src)
+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)
 {
-       while (*src)
-               *(dst++) = *(src++);
+       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();
 }
 
-unsigned char vgaread(unsigned char idx)
+void kbc_handler(smi_event_t ev)
 {
-       outb(0x3D4, idx);
-       inb(0x3D5);
+       pci_dump();
 }
 
-void strblit(char *src)
+void gbl_rls_handler(smi_event_t ev)
 {
-       char *destp = (char*)(0xB8000 | (vgaread(0xC) << 5) | (vgaread(0xD) << 1));
-       while (*src)
+       unsigned long ecx;
+       
+       ecx = *(unsigned long*)0xAFFD4;
+
+       packet_t * packet = check_packet(ecx);
+       if (!packet)
        {
-               *(destp++) = *(src++);
-               *(destp++) = 0x1F;
+               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 __start (void)
+void smi_entry(void)
 {
-       unsigned char smramc;
+       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);
        
-       strcpy(thestr, "15-412!");
+       eth_poll();
        
-       smramc = pci_read8(0, 0, 0, 0x70);
-       pci_write8(0, 0, 0, 0x70, (smramc & 0xF3) | 0x08);
-       strblit(thestr);
-       pci_write8(0, 0, 0, 0x70, smramc);
+       if (inl(0x840) & 0x1000)
+       {
+               pci_dump();
+               outl(0x840, 0x1100);
+               outl(0x840, 0x0100);
+       }
+
+       smi_poll();
        
+       pci_bother_all();
        outl(0xCF8, pcisave);
        outb(0x3D4, vgasave);
 }