X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/7a914840b833dba82398623bbde04a1744627398..46486ad5520048346dc360fb8f224bdd4aea74ef:/net/net.c?ds=sidebyside

diff --git a/net/net.c b/net/net.c
index 575b5e4..7312fde 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1,4 +1,7 @@
 #include <pci.h>
+#include <io.h>
+#include <video_defines.h>
+#include <smram.h>
 #include <pci-bother.h>
 #include <output.h>
 #include "net.h"
@@ -7,10 +10,72 @@ 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;
+	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 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, p->ethertype);
+		if (p->ethertype == 0x3813) {
+			outputf("NIC: Command: 0x%x", *((uint16_t *)p->data));
+		}
+	}
+	smram_tseg_set_state(SMRAM_TSEG_OPEN);
+	old_state = smram_save_state();
+	
+//	if ((c++) % 2)
+//		return;
+	
+	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)
@@ -23,6 +88,7 @@ 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);
 }