net: Rename eth.c to eth_lecacy.c
authorSimon Glass <sjg@chromium.org>
Sun, 17 Jan 2016 21:52:01 +0000 (14:52 -0700)
committerJoe Hershberger <joe.hershberger@ni.com>
Thu, 28 Jan 2016 18:32:48 +0000 (12:32 -0600)
Rename this file to make it clear it is for the old networking drivers
and not for use with driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
net/Makefile
net/eth.c [deleted file]
net/eth_legacy.c [new file with mode: 0644]

index 943de145d2920d4aca0ad6958412f1570423ab45..f03d6083268f2b085b9277a72f46685d98c30701 100644 (file)
@@ -15,7 +15,7 @@ obj-$(CONFIG_CMD_DNS)  += dns.o
 ifdef CONFIG_DM_ETH
 obj-$(CONFIG_CMD_NET)  += eth-uclass.o
 else
-obj-$(CONFIG_CMD_NET)  += eth.o
+obj-$(CONFIG_CMD_NET)  += eth_legacy.o
 endif
 obj-$(CONFIG_CMD_NET)  += eth_common.o
 obj-$(CONFIG_CMD_LINK_LOCAL) += link_local.o
diff --git a/net/eth.c b/net/eth.c
deleted file mode 100644 (file)
index bdcd6ea..0000000
--- a/net/eth.c
+++ /dev/null
@@ -1,439 +0,0 @@
-/*
- * (C) Copyright 2001-2015
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- * Joe Hershberger, National Instruments
- *
- * SPDX-License-Identifier:    GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <environment.h>
-#include <net.h>
-#include <phy.h>
-#include <asm/errno.h>
-#include "eth_internal.h"
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/*
- * CPU and board-specific Ethernet initializations.  Aliased function
- * signals caller to move on
- */
-static int __def_eth_init(bd_t *bis)
-{
-       return -1;
-}
-int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
-int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
-
-#ifdef CONFIG_API
-static struct {
-       uchar data[PKTSIZE];
-       int length;
-} eth_rcv_bufs[PKTBUFSRX];
-
-static unsigned int eth_rcv_current, eth_rcv_last;
-#endif
-
-static struct eth_device *eth_devices;
-struct eth_device *eth_current;
-
-void eth_set_current_to_next(void)
-{
-       eth_current = eth_current->next;
-}
-
-void eth_set_dev(struct eth_device *dev)
-{
-       eth_current = dev;
-}
-
-struct eth_device *eth_get_dev_by_name(const char *devname)
-{
-       struct eth_device *dev, *target_dev;
-
-       BUG_ON(devname == NULL);
-
-       if (!eth_devices)
-               return NULL;
-
-       dev = eth_devices;
-       target_dev = NULL;
-       do {
-               if (strcmp(devname, dev->name) == 0) {
-                       target_dev = dev;
-                       break;
-               }
-               dev = dev->next;
-       } while (dev != eth_devices);
-
-       return target_dev;
-}
-
-struct eth_device *eth_get_dev_by_index(int index)
-{
-       struct eth_device *dev, *target_dev;
-
-       if (!eth_devices)
-               return NULL;
-
-       dev = eth_devices;
-       target_dev = NULL;
-       do {
-               if (dev->index == index) {
-                       target_dev = dev;
-                       break;
-               }
-               dev = dev->next;
-       } while (dev != eth_devices);
-
-       return target_dev;
-}
-
-int eth_get_dev_index(void)
-{
-       if (!eth_current)
-               return -1;
-
-       return eth_current->index;
-}
-
-static int on_ethaddr(const char *name, const char *value, enum env_op op,
-       int flags)
-{
-       int index;
-       struct eth_device *dev;
-
-       if (!eth_devices)
-               return 0;
-
-       /* look for an index after "eth" */
-       index = simple_strtoul(name + 3, NULL, 10);
-
-       dev = eth_devices;
-       do {
-               if (dev->index == index) {
-                       switch (op) {
-                       case env_op_create:
-                       case env_op_overwrite:
-                               eth_parse_enetaddr(value, dev->enetaddr);
-                               break;
-                       case env_op_delete:
-                               memset(dev->enetaddr, 0, 6);
-                       }
-               }
-               dev = dev->next;
-       } while (dev != eth_devices);
-
-       return 0;
-}
-U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr);
-
-int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
-                  int eth_number)
-{
-       unsigned char env_enetaddr[6];
-       int ret = 0;
-
-       eth_getenv_enetaddr_by_index(base_name, eth_number, env_enetaddr);
-
-       if (!is_zero_ethaddr(env_enetaddr)) {
-               if (!is_zero_ethaddr(dev->enetaddr) &&
-                   memcmp(dev->enetaddr, env_enetaddr, 6)) {
-                       printf("\nWarning: %s MAC addresses don't match:\n",
-                              dev->name);
-                       printf("Address in SROM is         %pM\n",
-                              dev->enetaddr);
-                       printf("Address in environment is  %pM\n",
-                              env_enetaddr);
-               }
-
-               memcpy(dev->enetaddr, env_enetaddr, 6);
-       } else if (is_valid_ethaddr(dev->enetaddr)) {
-               eth_setenv_enetaddr_by_index(base_name, eth_number,
-                                            dev->enetaddr);
-       } else if (is_zero_ethaddr(dev->enetaddr)) {
-#ifdef CONFIG_NET_RANDOM_ETHADDR
-               net_random_ethaddr(dev->enetaddr);
-               printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
-                      dev->name, eth_number, dev->enetaddr);
-#else
-               printf("\nError: %s address not set.\n",
-                      dev->name);
-               return -EINVAL;
-#endif
-       }
-
-       if (dev->write_hwaddr && !eth_mac_skip(eth_number)) {
-               if (!is_valid_ethaddr(dev->enetaddr)) {
-                       printf("\nError: %s address %pM illegal value\n",
-                              dev->name, dev->enetaddr);
-                       return -EINVAL;
-               }
-
-               ret = dev->write_hwaddr(dev);
-               if (ret)
-                       printf("\nWarning: %s failed to set MAC address\n",
-                              dev->name);
-       }
-
-       return ret;
-}
-
-int eth_register(struct eth_device *dev)
-{
-       struct eth_device *d;
-       static int index;
-
-       assert(strlen(dev->name) < sizeof(dev->name));
-
-       if (!eth_devices) {
-               eth_devices = dev;
-               eth_current = dev;
-               eth_current_changed();
-       } else {
-               for (d = eth_devices; d->next != eth_devices; d = d->next)
-                       ;
-               d->next = dev;
-       }
-
-       dev->state = ETH_STATE_INIT;
-       dev->next  = eth_devices;
-       dev->index = index++;
-
-       return 0;
-}
-
-int eth_unregister(struct eth_device *dev)
-{
-       struct eth_device *cur;
-
-       /* No device */
-       if (!eth_devices)
-               return -ENODEV;
-
-       for (cur = eth_devices; cur->next != eth_devices && cur->next != dev;
-            cur = cur->next)
-               ;
-
-       /* Device not found */
-       if (cur->next != dev)
-               return -ENODEV;
-
-       cur->next = dev->next;
-
-       if (eth_devices == dev)
-               eth_devices = dev->next == eth_devices ? NULL : dev->next;
-
-       if (eth_current == dev) {
-               eth_current = eth_devices;
-               eth_current_changed();
-       }
-
-       return 0;
-}
-
-int eth_initialize(void)
-{
-       int num_devices = 0;
-
-       eth_devices = NULL;
-       eth_current = NULL;
-       eth_common_init();
-       /*
-        * If board-specific initialization exists, call it.
-        * If not, call a CPU-specific one
-        */
-       if (board_eth_init != __def_eth_init) {
-               if (board_eth_init(gd->bd) < 0)
-                       printf("Board Net Initialization Failed\n");
-       } else if (cpu_eth_init != __def_eth_init) {
-               if (cpu_eth_init(gd->bd) < 0)
-                       printf("CPU Net Initialization Failed\n");
-       } else {
-               printf("Net Initialization Skipped\n");
-       }
-
-       if (!eth_devices) {
-               puts("No ethernet found.\n");
-               bootstage_error(BOOTSTAGE_ID_NET_ETH_START);
-       } else {
-               struct eth_device *dev = eth_devices;
-               char *ethprime = getenv("ethprime");
-
-               bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
-               do {
-                       if (dev->index)
-                               puts(", ");
-
-                       printf("%s", dev->name);
-
-                       if (ethprime && strcmp(dev->name, ethprime) == 0) {
-                               eth_current = dev;
-                               puts(" [PRIME]");
-                       }
-
-                       if (strchr(dev->name, ' '))
-                               puts("\nWarning: eth device name has a space!"
-                                       "\n");
-
-                       eth_write_hwaddr(dev, "eth", dev->index);
-
-                       dev = dev->next;
-                       num_devices++;
-               } while (dev != eth_devices);
-
-               eth_current_changed();
-               putc('\n');
-       }
-
-       return num_devices;
-}
-
-#ifdef CONFIG_MCAST_TFTP
-/* Multicast.
- * mcast_addr: multicast ipaddr from which multicast Mac is made
- * join: 1=join, 0=leave.
- */
-int eth_mcast_join(struct in_addr mcast_ip, int join)
-{
-       u8 mcast_mac[6];
-       if (!eth_current || !eth_current->mcast)
-               return -1;
-       mcast_mac[5] = htonl(mcast_ip.s_addr) & 0xff;
-       mcast_mac[4] = (htonl(mcast_ip.s_addr)>>8) & 0xff;
-       mcast_mac[3] = (htonl(mcast_ip.s_addr)>>16) & 0x7f;
-       mcast_mac[2] = 0x5e;
-       mcast_mac[1] = 0x0;
-       mcast_mac[0] = 0x1;
-       return eth_current->mcast(eth_current, mcast_mac, join);
-}
-
-/* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
- * and this is the ethernet-crc method needed for TSEC -- and perhaps
- * some other adapter -- hash tables
- */
-#define CRCPOLY_LE 0xedb88320
-u32 ether_crc(size_t len, unsigned char const *p)
-{
-       int i;
-       u32 crc;
-       crc = ~0;
-       while (len--) {
-               crc ^= *p++;
-               for (i = 0; i < 8; i++)
-                       crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
-       }
-       /* an reverse the bits, cuz of way they arrive -- last-first */
-       crc = (crc >> 16) | (crc << 16);
-       crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
-       crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
-       crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
-       crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
-       return crc;
-}
-
-#endif
-
-
-int eth_init(void)
-{
-       struct eth_device *old_current;
-
-       if (!eth_current) {
-               puts("No ethernet found.\n");
-               return -ENODEV;
-       }
-
-       old_current = eth_current;
-       do {
-               debug("Trying %s\n", eth_current->name);
-
-               if (eth_current->init(eth_current, gd->bd) >= 0) {
-                       eth_current->state = ETH_STATE_ACTIVE;
-
-                       return 0;
-               }
-               debug("FAIL\n");
-
-               eth_try_another(0);
-       } while (old_current != eth_current);
-
-       return -ETIMEDOUT;
-}
-
-void eth_halt(void)
-{
-       if (!eth_current)
-               return;
-
-       eth_current->halt(eth_current);
-
-       eth_current->state = ETH_STATE_PASSIVE;
-}
-
-int eth_is_active(struct eth_device *dev)
-{
-       return dev && dev->state == ETH_STATE_ACTIVE;
-}
-
-int eth_send(void *packet, int length)
-{
-       if (!eth_current)
-               return -ENODEV;
-
-       return eth_current->send(eth_current, packet, length);
-}
-
-int eth_rx(void)
-{
-       if (!eth_current)
-               return -ENODEV;
-
-       return eth_current->recv(eth_current);
-}
-
-#ifdef CONFIG_API
-static void eth_save_packet(void *packet, int length)
-{
-       char *p = packet;
-       int i;
-
-       if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
-               return;
-
-       if (PKTSIZE < length)
-               return;
-
-       for (i = 0; i < length; i++)
-               eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
-
-       eth_rcv_bufs[eth_rcv_last].length = length;
-       eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
-}
-
-int eth_receive(void *packet, int length)
-{
-       char *p = packet;
-       void *pp = push_packet;
-       int i;
-
-       if (eth_rcv_current == eth_rcv_last) {
-               push_packet = eth_save_packet;
-               eth_rx();
-               push_packet = pp;
-
-               if (eth_rcv_current == eth_rcv_last)
-                       return -1;
-       }
-
-       length = min(eth_rcv_bufs[eth_rcv_current].length, length);
-
-       for (i = 0; i < length; i++)
-               p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
-
-       eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
-       return length;
-}
-#endif /* CONFIG_API */
diff --git a/net/eth_legacy.c b/net/eth_legacy.c
new file mode 100644 (file)
index 0000000..bdcd6ea
--- /dev/null
@@ -0,0 +1,439 @@
+/*
+ * (C) Copyright 2001-2015
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Joe Hershberger, National Instruments
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <environment.h>
+#include <net.h>
+#include <phy.h>
+#include <asm/errno.h>
+#include "eth_internal.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * CPU and board-specific Ethernet initializations.  Aliased function
+ * signals caller to move on
+ */
+static int __def_eth_init(bd_t *bis)
+{
+       return -1;
+}
+int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
+int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
+
+#ifdef CONFIG_API
+static struct {
+       uchar data[PKTSIZE];
+       int length;
+} eth_rcv_bufs[PKTBUFSRX];
+
+static unsigned int eth_rcv_current, eth_rcv_last;
+#endif
+
+static struct eth_device *eth_devices;
+struct eth_device *eth_current;
+
+void eth_set_current_to_next(void)
+{
+       eth_current = eth_current->next;
+}
+
+void eth_set_dev(struct eth_device *dev)
+{
+       eth_current = dev;
+}
+
+struct eth_device *eth_get_dev_by_name(const char *devname)
+{
+       struct eth_device *dev, *target_dev;
+
+       BUG_ON(devname == NULL);
+
+       if (!eth_devices)
+               return NULL;
+
+       dev = eth_devices;
+       target_dev = NULL;
+       do {
+               if (strcmp(devname, dev->name) == 0) {
+                       target_dev = dev;
+                       break;
+               }
+               dev = dev->next;
+       } while (dev != eth_devices);
+
+       return target_dev;
+}
+
+struct eth_device *eth_get_dev_by_index(int index)
+{
+       struct eth_device *dev, *target_dev;
+
+       if (!eth_devices)
+               return NULL;
+
+       dev = eth_devices;
+       target_dev = NULL;
+       do {
+               if (dev->index == index) {
+                       target_dev = dev;
+                       break;
+               }
+               dev = dev->next;
+       } while (dev != eth_devices);
+
+       return target_dev;
+}
+
+int eth_get_dev_index(void)
+{
+       if (!eth_current)
+               return -1;
+
+       return eth_current->index;
+}
+
+static int on_ethaddr(const char *name, const char *value, enum env_op op,
+       int flags)
+{
+       int index;
+       struct eth_device *dev;
+
+       if (!eth_devices)
+               return 0;
+
+       /* look for an index after "eth" */
+       index = simple_strtoul(name + 3, NULL, 10);
+
+       dev = eth_devices;
+       do {
+               if (dev->index == index) {
+                       switch (op) {
+                       case env_op_create:
+                       case env_op_overwrite:
+                               eth_parse_enetaddr(value, dev->enetaddr);
+                               break;
+                       case env_op_delete:
+                               memset(dev->enetaddr, 0, 6);
+                       }
+               }
+               dev = dev->next;
+       } while (dev != eth_devices);
+
+       return 0;
+}
+U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr);
+
+int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
+                  int eth_number)
+{
+       unsigned char env_enetaddr[6];
+       int ret = 0;
+
+       eth_getenv_enetaddr_by_index(base_name, eth_number, env_enetaddr);
+
+       if (!is_zero_ethaddr(env_enetaddr)) {
+               if (!is_zero_ethaddr(dev->enetaddr) &&
+                   memcmp(dev->enetaddr, env_enetaddr, 6)) {
+                       printf("\nWarning: %s MAC addresses don't match:\n",
+                              dev->name);
+                       printf("Address in SROM is         %pM\n",
+                              dev->enetaddr);
+                       printf("Address in environment is  %pM\n",
+                              env_enetaddr);
+               }
+
+               memcpy(dev->enetaddr, env_enetaddr, 6);
+       } else if (is_valid_ethaddr(dev->enetaddr)) {
+               eth_setenv_enetaddr_by_index(base_name, eth_number,
+                                            dev->enetaddr);
+       } else if (is_zero_ethaddr(dev->enetaddr)) {
+#ifdef CONFIG_NET_RANDOM_ETHADDR
+               net_random_ethaddr(dev->enetaddr);
+               printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
+                      dev->name, eth_number, dev->enetaddr);
+#else
+               printf("\nError: %s address not set.\n",
+                      dev->name);
+               return -EINVAL;
+#endif
+       }
+
+       if (dev->write_hwaddr && !eth_mac_skip(eth_number)) {
+               if (!is_valid_ethaddr(dev->enetaddr)) {
+                       printf("\nError: %s address %pM illegal value\n",
+                              dev->name, dev->enetaddr);
+                       return -EINVAL;
+               }
+
+               ret = dev->write_hwaddr(dev);
+               if (ret)
+                       printf("\nWarning: %s failed to set MAC address\n",
+                              dev->name);
+       }
+
+       return ret;
+}
+
+int eth_register(struct eth_device *dev)
+{
+       struct eth_device *d;
+       static int index;
+
+       assert(strlen(dev->name) < sizeof(dev->name));
+
+       if (!eth_devices) {
+               eth_devices = dev;
+               eth_current = dev;
+               eth_current_changed();
+       } else {
+               for (d = eth_devices; d->next != eth_devices; d = d->next)
+                       ;
+               d->next = dev;
+       }
+
+       dev->state = ETH_STATE_INIT;
+       dev->next  = eth_devices;
+       dev->index = index++;
+
+       return 0;
+}
+
+int eth_unregister(struct eth_device *dev)
+{
+       struct eth_device *cur;
+
+       /* No device */
+       if (!eth_devices)
+               return -ENODEV;
+
+       for (cur = eth_devices; cur->next != eth_devices && cur->next != dev;
+            cur = cur->next)
+               ;
+
+       /* Device not found */
+       if (cur->next != dev)
+               return -ENODEV;
+
+       cur->next = dev->next;
+
+       if (eth_devices == dev)
+               eth_devices = dev->next == eth_devices ? NULL : dev->next;
+
+       if (eth_current == dev) {
+               eth_current = eth_devices;
+               eth_current_changed();
+       }
+
+       return 0;
+}
+
+int eth_initialize(void)
+{
+       int num_devices = 0;
+
+       eth_devices = NULL;
+       eth_current = NULL;
+       eth_common_init();
+       /*
+        * If board-specific initialization exists, call it.
+        * If not, call a CPU-specific one
+        */
+       if (board_eth_init != __def_eth_init) {
+               if (board_eth_init(gd->bd) < 0)
+                       printf("Board Net Initialization Failed\n");
+       } else if (cpu_eth_init != __def_eth_init) {
+               if (cpu_eth_init(gd->bd) < 0)
+                       printf("CPU Net Initialization Failed\n");
+       } else {
+               printf("Net Initialization Skipped\n");
+       }
+
+       if (!eth_devices) {
+               puts("No ethernet found.\n");
+               bootstage_error(BOOTSTAGE_ID_NET_ETH_START);
+       } else {
+               struct eth_device *dev = eth_devices;
+               char *ethprime = getenv("ethprime");
+
+               bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
+               do {
+                       if (dev->index)
+                               puts(", ");
+
+                       printf("%s", dev->name);
+
+                       if (ethprime && strcmp(dev->name, ethprime) == 0) {
+                               eth_current = dev;
+                               puts(" [PRIME]");
+                       }
+
+                       if (strchr(dev->name, ' '))
+                               puts("\nWarning: eth device name has a space!"
+                                       "\n");
+
+                       eth_write_hwaddr(dev, "eth", dev->index);
+
+                       dev = dev->next;
+                       num_devices++;
+               } while (dev != eth_devices);
+
+               eth_current_changed();
+               putc('\n');
+       }
+
+       return num_devices;
+}
+
+#ifdef CONFIG_MCAST_TFTP
+/* Multicast.
+ * mcast_addr: multicast ipaddr from which multicast Mac is made
+ * join: 1=join, 0=leave.
+ */
+int eth_mcast_join(struct in_addr mcast_ip, int join)
+{
+       u8 mcast_mac[6];
+       if (!eth_current || !eth_current->mcast)
+               return -1;
+       mcast_mac[5] = htonl(mcast_ip.s_addr) & 0xff;
+       mcast_mac[4] = (htonl(mcast_ip.s_addr)>>8) & 0xff;
+       mcast_mac[3] = (htonl(mcast_ip.s_addr)>>16) & 0x7f;
+       mcast_mac[2] = 0x5e;
+       mcast_mac[1] = 0x0;
+       mcast_mac[0] = 0x1;
+       return eth_current->mcast(eth_current, mcast_mac, join);
+}
+
+/* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
+ * and this is the ethernet-crc method needed for TSEC -- and perhaps
+ * some other adapter -- hash tables
+ */
+#define CRCPOLY_LE 0xedb88320
+u32 ether_crc(size_t len, unsigned char const *p)
+{
+       int i;
+       u32 crc;
+       crc = ~0;
+       while (len--) {
+               crc ^= *p++;
+               for (i = 0; i < 8; i++)
+                       crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
+       }
+       /* an reverse the bits, cuz of way they arrive -- last-first */
+       crc = (crc >> 16) | (crc << 16);
+       crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
+       crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
+       crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
+       crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
+       return crc;
+}
+
+#endif
+
+
+int eth_init(void)
+{
+       struct eth_device *old_current;
+
+       if (!eth_current) {
+               puts("No ethernet found.\n");
+               return -ENODEV;
+       }
+
+       old_current = eth_current;
+       do {
+               debug("Trying %s\n", eth_current->name);
+
+               if (eth_current->init(eth_current, gd->bd) >= 0) {
+                       eth_current->state = ETH_STATE_ACTIVE;
+
+                       return 0;
+               }
+               debug("FAIL\n");
+
+               eth_try_another(0);
+       } while (old_current != eth_current);
+
+       return -ETIMEDOUT;
+}
+
+void eth_halt(void)
+{
+       if (!eth_current)
+               return;
+
+       eth_current->halt(eth_current);
+
+       eth_current->state = ETH_STATE_PASSIVE;
+}
+
+int eth_is_active(struct eth_device *dev)
+{
+       return dev && dev->state == ETH_STATE_ACTIVE;
+}
+
+int eth_send(void *packet, int length)
+{
+       if (!eth_current)
+               return -ENODEV;
+
+       return eth_current->send(eth_current, packet, length);
+}
+
+int eth_rx(void)
+{
+       if (!eth_current)
+               return -ENODEV;
+
+       return eth_current->recv(eth_current);
+}
+
+#ifdef CONFIG_API
+static void eth_save_packet(void *packet, int length)
+{
+       char *p = packet;
+       int i;
+
+       if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
+               return;
+
+       if (PKTSIZE < length)
+               return;
+
+       for (i = 0; i < length; i++)
+               eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
+
+       eth_rcv_bufs[eth_rcv_last].length = length;
+       eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
+}
+
+int eth_receive(void *packet, int length)
+{
+       char *p = packet;
+       void *pp = push_packet;
+       int i;
+
+       if (eth_rcv_current == eth_rcv_last) {
+               push_packet = eth_save_packet;
+               eth_rx();
+               push_packet = pp;
+
+               if (eth_rcv_current == eth_rcv_last)
+                       return -1;
+       }
+
+       length = min(eth_rcv_bufs[eth_rcv_current].length, length);
+
+       for (i = 0; i < length; i++)
+               p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
+
+       eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
+       return length;
+}
+#endif /* CONFIG_API */