#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"
unsigned int counter = 0;
+unsigned int lastctr = 0;
unsigned long pcisave;
unsigned char vgasave;
-char thestr[512];
-char logents[4][41] = {{0}};
+static int curdev = 0; /* 0 if kbd, 1 if mouse */
-#define VRAM_BASE 0xA0000UL
-#define TEXT_CONSOLE_OFFSET 0x18000UL
-
-#define TEXT_CONSOLE_BASE (VRAM_BASE + TEXT_CONSOLE_OFFSET)
-
-#define COLOR 0x1F
-
-unsigned char vga_read(unsigned char idx)
-{
- outb(CRTC_IDX_REG, idx);
- return inb(CRTC_DATA_REG);
-}
-
-char * vga_base()
-{
- return (char *) (
- TEXT_CONSOLE_BASE
- | (((unsigned int) vga_read(CRTC_START_ADDR_LSB_IDX)) << 9)
- | (((unsigned int) vga_read(CRTC_START_ADDR_MSB_IDX)) << 1)
- );
-}
-
-void strblit(char *src, int row, int col)
+static void cause_kbd_irq()
{
- char *destp = vga_base() + row * 80 * 2 + col * 2;
- smram_state_t old_state = smram_save_state();
-
- smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
-
- while (*src)
- {
- *(destp++) = *(src++);
- *(destp++) = COLOR;
- }
-
- smram_restore_state(old_state);
-}
-
-void outlog()
-{
- int y, x;
- char *basep = vga_base();
-
- smram_state_t old_state = smram_save_state();
-
- smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
-
- for (y = 0; y < 4; y++)
- for (x = 40; x < 80; x++)
- {
- basep[y*80*2+x*2] = ' ';
- basep[y*80*2+x*2+1] = 0x1F;
- }
-
- smram_restore_state(old_state);
-
- for (y = 0; y < 4; y++)
- strblit(logents[y], y, 40);
-}
-
-void dolog(char *s)
-{
- memmove(logents[0], logents[1], sizeof(logents[0])*3);
- strcpy(logents[3], s);
+ 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() {
- char s[40];
unsigned long cts;
- static int curdev = 0; /* 0 if kbd, 1 if mouse */
cts = inl(0x84C);
+ outl(0x840, 0x0);
outl(0x848, 0x0);
-
switch(cts&0xF0000)
{
case 0x20000:
{
unsigned char b;
- strcpy(s, "READxxxxxxxxxxxxxxxx");
- tohex(s+4, cts);
- b = inb(cts & 0xFFFF);
- tohex(s+12, b);
- if ((cts & 0xFFFF) == 0x64)
- curdev = (b & 0x20) ? 1 : 0;
- if ((curdev == 0) && ((cts & 0xFFFF) == 0x60) && (b == 0x01))
- outb(0xCF9, 0x4);
- dolog(s);
+
+ 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;
}
{
unsigned char b;
- strcpy(s, "WRITxxxxxxxxxxxxxxxx");
b = *(unsigned char*)0xAFFD0 /* EAX */;
- tohex(s+4, cts);
- tohex(s+12, b);
- dolog(s);
+ 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 __start (void)
+void timer_handler(smi_event_t ev)
{
- static int first = 1;
+ static unsigned int ticks = 0;
- pcisave = inl(0xCF8);
- vgasave = inb(0x3D4);
+ smi_disable_event(SMI_EVENT_FAST_TIMER);
+ smi_enable_event(SMI_EVENT_FAST_TIMER);
- if (first)
+ if (kbd_has_injected_scancode() && (counter > (lastctr + 2)))
{
- first = 0;
- dolog("NetWatch running...");
+ smi_disable_event(SMI_EVENT_DEVTRAP_KBC);
+ dolog("Kicking timer");
+ cause_kbd_irq();
+ smi_enable_event(SMI_EVENT_DEVTRAP_KBC);
}
-
- counter++;
- outb(0x80, (counter & 0xFF));
- strcpy(thestr, "15-412! xxxxxxxx xxxxxxxx");
- tohex(thestr + 8, inl(0x0834));
- tohex(thestr + 17, counter);
- strblit(thestr, 0, 0);
+ 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;
- if (inl(0x834) & 0x20)
- dolog("Warning: unhandled APM access");
- if (inl(0x834) & 0x1000)
+ ecx = *(unsigned long*)0xAFFD4;
+
+ packet_t * packet = check_packet(ecx);
+ if (!packet)
{
- if (inl(0x844) & 0x1000) /* devact_sts */
- {
- pci_dump();
- outl(0x848, 0x1000);
- outl(0x844, 0x1000);
- }
+ 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;
}
- if (inl(0x834) & 0x4000)
- dolog("Long periodic timer");
+}
+
+void smi_entry(void)
+{
+ char statstr[512];
+
+ pcisave = inl(0xCF8);
+ vgasave = inb(0x3D4);
+ pci_unbother_all();
+
+ counter++;
+ sprintf(statstr, "15-412! %08x %08x", smi_status(), counter);
+ strblit(statstr, 0, 0);
+
+ eth_poll();
+
if (inl(0x840) & 0x1000)
{
- dolog("Caught device monitor trap");
pci_dump();
outl(0x840, 0x1100);
outl(0x840, 0x0100);
}
- if (inl(0x834) & ~(0x4160))
- {
- char s[40];
- strcpy(s, "Unknown: xxxxxxxx");
- tohex(s + 9, inl(0x834) & ~(0x140));
- dolog(s);
- }
-
- outlog();
+ smi_poll();
+ pci_bother_all();
outl(0xCF8, pcisave);
outb(0x3D4, vgasave);
-
- outl(0x848, 0x1000);
- outl(0x834, /*0x40*/0xFFFF); // ack the periodic IRQ
- outb(0x830, (inb(0x830) | 0x2) & ~0x40);
- outb(0x830, inb(0x830) | 0x40);
-
}
git.joshuawise.com / netwatch.git / blobdiff