WIZnetInterface.cpp

00001 /* Copyright (C) 2012 mbed.org, MIT License
00002  *
00003  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00004  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00005  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00006  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00007  * furnished to do so, subject to the following conditions:
00008  *
00009  * The above copyright notice and this permission notice shall be included in all copies or
00010  * substantial portions of the Software.
00011  *
00012  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00013  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00014  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00015  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00016  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017  */
00018 
00019 #include "WIZnetInterface.h"
00020 #include "DHCPClient.h"
00021 
00022 WIZnetInterface::WIZnetInterface(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset) :
00023         WIZnet_Chip(mosi, miso, sclk, cs, reset)
00024 {
00025     ip_set = false;
00026 }
00027 
00028 WIZnetInterface::WIZnetInterface(SPI* spi, PinName cs, PinName reset) :
00029         WIZnet_Chip(spi, cs, reset)
00030 {
00031     ip_set = false;
00032 }
00033 
00034 int WIZnetInterface::init(uint8_t * mac)
00035 {
00036     dhcp = true;
00037     //
00038     for (int i =0; i < 6; i++) this->mac[i] = mac[i];
00039     //
00040     reset();
00041     return 0;
00042 }
00043 
00044 int WIZnetInterface::init(uint8_t * mac, const char* ip, const char* mask, const char* gateway)
00045 {
00046     dhcp = false;
00047     //
00048     for (int i =0; i < 6; i++) this->mac[i] = mac[i];
00049     //
00050     this->ip = str_to_ip(ip);
00051     strcpy(ip_string, ip);
00052     ip_set = true;
00053     this->netmask = str_to_ip(mask);
00054     this->gateway = str_to_ip(gateway);
00055     reset();
00056     return 0;
00057 }
00058 
00059 // Connect Bring the interface up, start DHCP if needed.
00060 int WIZnetInterface::connect()
00061 {
00062     if (dhcp) {
00063         int r = IPrenew();
00064         if (r < 0) {
00065             return r;
00066         }
00067     }
00068     
00069     if (WIZnet_Chip::setip() == false) return -1;
00070     return 0;
00071 }
00072 
00073 // Disconnect Bring the interface down.
00074 int WIZnetInterface::disconnect()
00075 {
00076     if (WIZnet_Chip::disconnect() == false) return -1;
00077     return 0;
00078 }
00079 
00080 char* WIZnetInterface::getIPAddress()
00081 {
00082     uint32_t ip = reg_rd<uint32_t>(SIPR);
00083     snprintf(ip_string, sizeof(ip_string), "%d.%d.%d.%d", (ip>>24)&0xff, (ip>>16)&0xff, (ip>>8)&0xff, ip&0xff);
00084     return ip_string;
00085 }
00086 
00087 char* WIZnetInterface::getNetworkMask()
00088 {
00089     uint32_t ip = reg_rd<uint32_t>(SUBR);
00090     snprintf(mask_string, sizeof(mask_string), "%d.%d.%d.%d", (ip>>24)&0xff, (ip>>16)&0xff, (ip>>8)&0xff, ip&0xff);
00091     return mask_string;
00092 }
00093 
00094 char* WIZnetInterface::getGateway()
00095 {
00096     uint32_t ip = reg_rd<uint32_t>(GAR);
00097     snprintf(gw_string, sizeof(gw_string), "%d.%d.%d.%d", (ip>>24)&0xff, (ip>>16)&0xff, (ip>>8)&0xff, ip&0xff);
00098     return gw_string;
00099 }
00100 
00101 char* WIZnetInterface::getMACAddress()
00102 {
00103     uint8_t mac[6];
00104     reg_rd_mac(SHAR, mac);
00105     snprintf(mac_string, sizeof(mac_string), "%02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
00106     return mac_string; 
00107     
00108 }
00109 
00110 int WIZnetInterface::IPrenew(int timeout_ms)
00111 {
00112     DHCPClient dhcp;
00113     int err = dhcp.setup(timeout_ms);
00114     if (err == (-1)) {
00115         return -1;
00116     }
00117    // printf("Connected, IP: %d.%d.%d.%d\n", dhcp.yiaddr[0], dhcp.yiaddr[1], dhcp.yiaddr[2], dhcp.yiaddr[3]);
00118     ip      = (dhcp.yiaddr[0] <<24) | (dhcp.yiaddr[1] <<16) | (dhcp.yiaddr[2] <<8) | dhcp.yiaddr[3];
00119     gateway = (dhcp.gateway[0]<<24) | (dhcp.gateway[1]<<16) | (dhcp.gateway[2]<<8) | dhcp.gateway[3];
00120     netmask = (dhcp.netmask[0]<<24) | (dhcp.netmask[1]<<16) | (dhcp.netmask[2]<<8) | dhcp.netmask[3];
00121     dnsaddr = (dhcp.dnsaddr[0]<<24) | (dhcp.dnsaddr[1]<<16) | (dhcp.dnsaddr[2]<<8) | dhcp.dnsaddr[3];
00122     return 0;
00123 }