1 files changed, 188 insertions, 0 deletions
diff --git a/lwip/ports/drivers/eth_lwip.c b/lwip/ports/drivers/eth_lwip.c
new file mode 100644
index 0000000..b1ae4bb
--- /dev/null
+++ b/lwip/ports/drivers/eth_lwip.c
@@ -0,0 +1,188 @@
+/*
+ * Copyright (c) 2013, 2015 Czech Technical University in Prague
+ * Czech Republic
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Premysl Houdek <houdepre@fel.cvut.cz>
+ * Mentor: Pavel Pisa <pisa@cmp.felk.cvut.cz>
+ * Industrial Informatics Group, FEE, Czech Technical University in Prague
+ *
+ * Based on work of Carlos Jenkins, Rostislav Lisovy, Jan Dolezal
+ */
+
+//#define DEBUG 1
+#include "lwip/tcpip.h" /* includes - lwip/opt.h, lwip/api_msg.h, lwip/netifapi.h, lwip/pbuf.h, lwip/api.h, lwip/sys.h, lwip/timers.h, lwip/netif.h */
+#include "lwip/stats.h"
+#include "lwip/dhcp.h"
+#include "lwip/netifapi.h"
+#include "netif/etharp.h" /* includes - lwip/ip.h, lwip/netif.h, lwip/ip_addr.h, lwip/pbuf.h */
+#include "eth_lwip_default.h"
+#include "eth_lwip.h"
+#include "tms570_netif.h"
+#include <stdio.h>
+
+/* The lwIP network interface structure for the Ethernet EMAC. */
+#ifndef MAX_EMAC_INSTANCE
+#define MAX_EMAC_INSTANCE           1
+#endif /*MAX_EMAC_INSTANCE*/
+
+#define SUCCESS ERR_OK
+#define FAILURE ERR_IF
+
+static struct netif eth_lwip_netifs[MAX_EMAC_INSTANCE];
+static void eth_lwip_conv_IP_decimal_Str(ip_addr_t ip, uint8_t *ipStr);
+
+
+void
+eth_lwip_get_dhcp_info(void)
+{
+  struct netif *netif = eth_lwip_get_netif(0);
+
+  if (dhcp_supplied_address(netif)) {
+    uint8_t ipString[16]; // FIXME change the functions to use char
+    eth_lwip_conv_IP_decimal_Str(netif->ip_addr, ipString);
+    printf("Address: %s\n", ipString);
+    eth_lwip_conv_IP_decimal_Str(netif->netmask, ipString);
+    printf("Netmask: %s\n", ipString);
+    eth_lwip_conv_IP_decimal_Str(netif->gw, ipString);
+    printf("Gateway: %s\n", ipString);
+  } else {
+    printf("dhcp not bound\n");
+  }
+}
+
+int8_t
+eth_lwip_init(uint8_t *mac_addr)
+{
+  unsigned int instance_number = 0;
+  int8_t retVal = SUCCESS;
+
+
+  ip4_addr_t ip_addr;
+  ip4_addr_t net_mask;
+  ip4_addr_t gw_addr;
+  struct netif *netif = &eth_lwip_netifs[instance_number];
+  struct netif *netif_tmp;
+  u8_t default_mac[MAC_ADDR_LEN] = ETH_MAC_ADDR;
+
+  if (mac_addr == NULL)
+    mac_addr = default_mac;             /* use default MAC */
+
+  eth_lwip_set_hwaddr(netif, mac_addr);
+  tcpip_init(NULL, NULL);
+
+#if STATIC_IP_ADDRESS
+  ip_addr.addr = htonl(ETH_IP_ADDR);
+  net_mask.addr = htonl(ETH_NETMASK);
+  gw_addr.addr = htonl(ETH_GW);
+#else
+  ip_addr.addr = 0;
+  net_mask.addr = 0;
+  gw_addr.addr = 0;
+#endif
+
+  netif_tmp = netif_add(netif, &ip_addr, &net_mask, &gw_addr,
+                        NULL, ETH_LWIP_INIT_NETIF_FNC, tcpip_input);
+
+  if (netif_tmp == NULL)
+    return NETIF_ADD_ERR;
+
+  netif_set_default(netif);
+  netifapi_netif_set_up(netif);
+#if !STATIC_IP_ADDRESS
+  netifapi_dhcp_start(netif);
+#endif
+
+  return retVal;
+}
+
+int
+eth_lwip_get_netif_status_cmd(int argc, char *arg[])
+{
+  stats_display();
+  return 0;
+}
+
+struct netif *
+eth_lwip_get_netif(uint32_t instance_number)
+{
+  if (instance_number >= MAX_EMAC_INSTANCE)
+    return NULL;
+  return &eth_lwip_netifs[instance_number];
+}
+
+static void
+eth_lwip_conv_IP_decimal_Str(ip_addr_t ip, uint8_t *ipStr)
+{
+  uint32_t addr;
+ #if LWIP_IPV6
+  addr = ip.u_addr.ip4.addr;
+ #else
+  addr = ip.addr;
+ #endif
+
+  snprintf((char *)ipStr, 16, "%lu.%lu.%lu.%lu",
+           (addr >> 24), ((addr >> 16) & 0xff), ((addr >> 8) & 0xff), (addr & 0xff));
+}
+
+/*
+* Function to set the MAC address to the interface
+* @param   inst_num the instance number
+*
+* @note    mac_addr[0] is considered MSB
+*/
+void
+eth_lwip_set_hwaddr(struct netif *netif, uint8_t *mac_addr)
+{
+  int i;
+
+  /* set MAC hardware address */
+  for (i = 0; i < MAC_ADDR_LEN; i++) {
+    netif->hwaddr[i] = mac_addr[i];
+  }
+  netif->hwaddr_len = MAC_ADDR_LEN;
+
+#ifdef DEBUG
+  uint8_t macStr[18];
+  eth_lwip_get_hwaddr_str(netif, macStr);
+  printf("Setting MAC... %s\r\n", macStr);
+#endif
+}
+
+void
+eth_lwip_get_hwaddr_str(struct netif *netif, uint8_t *macStr)
+{
+  uint8_t index, outindex = 0;
+  char ch;
+
+  for (index = 0; index < netif->hwaddr_len; index++) {
+    if (index)
+      macStr[outindex++] = ':';
+    ch = (netif->hwaddr[index] >> 4);
+    macStr[outindex++] = (ch < 10) ? (ch + '0') : (ch - 10 + 'A');
+    ch = (netif->hwaddr[index] & 0xf);
+    macStr[outindex++] = (ch < 10) ? (ch + '0') : (ch - 10 + 'A');
+  }
+  macStr[outindex] = 0;
+}