Initial revision

1 files changed, 292 insertions, 0 deletions

diff --git a/net/eth.c b/net/eth.c
new file mode 100644
index 0000000..3b06440
--- /dev/null
+++ b/net/eth.c
@@ -0,0 +1,292 @@
+/*
+ * (C) Copyright 2001, 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <net.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
+
+#ifdef CFG_GT_6426x
+extern int gt6426x_eth_initialize(bd_t *bis);
+#endif
+
+extern int eepro100_initialize(bd_t*);
+extern int natsemi_initialize(bd_t*);
+extern int ns8382x_initialize(bd_t*);
+extern int dc21x4x_initialize(bd_t*);
+extern int pcnet_initialize(bd_t*);
+extern int fec_initialize(bd_t*);
+extern int scc_initialize(bd_t*);
+
+static struct eth_device *eth_devices, *eth_current;
+
+struct eth_device *eth_get_dev(void)
+{
+	return eth_current;
+}
+
+int eth_get_dev_index (void)
+{
+	struct eth_device *dev;
+	int num = 0;
+
+	if (!eth_devices) {
+		return (-1);
+	}
+
+	for (dev = eth_devices; dev; dev = dev->next) {
+		if (dev == eth_current)
+			break;
+		++num;
+	}
+
+	if (dev) {
+		return (num);
+	}
+
+	return (0);
+}
+
+int eth_register(struct eth_device* dev)
+{
+	struct eth_device *d;
+
+	if (!eth_devices) {
+		eth_current = eth_devices = dev;
+	} else {
+		for (d=eth_devices; d->next!=eth_devices; d=d->next);
+		d->next = dev;
+	}
+
+	dev->state = ETH_STATE_INIT;
+	dev->next  = eth_devices;
+
+	return 0;
+}
+
+int eth_initialize(bd_t *bis)
+{
+	unsigned char enetvar[32], env_enetaddr[6];
+	int i, eth_number = 0;
+	char *tmp, *end;
+
+	eth_devices = NULL;
+	eth_current = NULL;
+
+#ifdef CONFIG_EEPRO100
+	eepro100_initialize(bis);
+#endif
+#ifdef CONFIG_TULIP
+	dc21x4x_initialize(bis);
+#endif
+#ifdef CONFIG_PCNET
+	pcnet_initialize(bis);
+#endif
+#ifdef CFG_GT_6426x
+	gt6426x_eth_initialize(bis);
+#endif
+#ifdef CONFIG_NATSEMI
+	natsemi_initialize(bis);
+#endif
+#ifdef CONFIG_NS8382X
+	ns8382x_initialize(bis);
+#endif
+#ifdef SCC_ENET
+	scc_initialize(bis);
+#endif
+#ifdef FEC_ENET
+	fec_initialize(bis);
+#endif
+
+	if (!eth_devices) {
+		puts ("No ethernet found.\n");
+	} else {
+		struct eth_device *dev = eth_devices;
+		char *ethprime = getenv ("ethprime");
+
+		do {
+			if (eth_number)
+				puts (", ");
+
+			printf("%s", dev->name);
+
+			if (ethprime && strcmp (dev->name, ethprime) == 0) {
+				eth_current = dev;
+				puts (" [PRIME]");
+			}
+
+			sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
+			tmp = getenv (enetvar);
+
+			for (i=0; i<6; i++) {
+				env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
+				if (tmp)
+					tmp = (*end) ? end+1 : end;
+			}
+
+			if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
+				if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
+				    memcmp(dev->enetaddr, env_enetaddr, 6))
+				{
+					printf("\nWarning: %s HW address don't match:\n", dev->name);
+					printf("Address in SROM is         "
+					       "%02X:%02X:%02X:%02X:%02X:%02X\n",
+					       dev->enetaddr[0], dev->enetaddr[1],
+					       dev->enetaddr[2], dev->enetaddr[3],
+					       dev->enetaddr[4], dev->enetaddr[5]);
+					printf("Address in environment is  "
+					       "%02X:%02X:%02X:%02X:%02X:%02X\n",
+					       env_enetaddr[0], env_enetaddr[1],
+					       env_enetaddr[2], env_enetaddr[3],
+					       env_enetaddr[4], env_enetaddr[5]);
+				}
+
+				memcpy(dev->enetaddr, env_enetaddr, 6);
+			}
+
+			eth_number++;
+			dev = dev->next;
+		} while(dev != eth_devices);
+
+		putc ('\n');
+	}
+
+	return eth_number;
+}
+
+void eth_set_enetaddr(int num, char *addr) {
+	struct eth_device *dev;
+	unsigned char enetaddr[6];
+	char *end;
+	int i;
+
+#ifdef DEBUG
+	printf("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
+#endif
+	if (!eth_devices)
+		return;
+
+	for (i=0; i<6; i++) {
+		enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
+		if (addr)
+			addr = (*end) ? end+1 : end;
+	}
+
+	dev = eth_devices;
+	while(num-- > 0) {
+		dev = dev->next;
+
+		if (dev == eth_devices)
+			return;
+	}
+
+#ifdef DEBUG
+	printf("Setting new HW address on %s\n", dev->name);
+	printf("New Address is             "
+	       "%02X:%02X:%02X:%02X:%02X:%02X\n",
+	       dev->enetaddr[0], dev->enetaddr[1],
+	       dev->enetaddr[2], dev->enetaddr[3],
+	       dev->enetaddr[4], dev->enetaddr[5]);
+#endif
+
+	memcpy(dev->enetaddr, enetaddr, 6);
+}
+
+int eth_init(bd_t *bis)
+{
+	struct eth_device* old_current;
+
+	if (!eth_current)
+		return 0;
+
+	old_current = eth_current;
+	do {
+#ifdef DEBUG
+		printf("Trying %s\n", eth_current->name);
+#endif
+
+		if (eth_current->init(eth_current, bis)) {
+			eth_current->state = ETH_STATE_ACTIVE;
+
+			printf("%s configured\n", eth_current->name);
+			return 1;
+		}
+
+#ifdef DEBUG
+		puts ("FAIL\n");
+#endif
+
+		eth_try_another(0);
+	} while (old_current != eth_current);
+
+	return 0;
+}
+
+void eth_halt(void)
+{
+	if (!eth_current)
+		return;
+
+	eth_current->halt(eth_current);
+
+	eth_current->state = ETH_STATE_PASSIVE;
+}
+
+int eth_send(volatile void *packet, int length)
+{
+	if (!eth_current)
+		return -1;
+
+	return eth_current->send(eth_current, packet, length);
+}
+
+int eth_rx(void)
+{
+	if (!eth_current)
+		return -1;
+
+	return eth_current->recv(eth_current);
+}
+
+void eth_try_another(int first_restart)
+{
+	static struct eth_device *first_failed = NULL;
+
+	if (!eth_current)
+		return;
+
+	if (first_restart)
+	{
+		first_failed = eth_current;
+	}
+
+	eth_current = eth_current->next;
+
+	if (first_failed == eth_current)
+	{
+		NetRestartWrap = 1;
+	}
+}
+
+#endif