Example of HTTPServer with additional features: * SNTPClient, DST rules * Link status indication * Local or SDCard-based WebServer * RPC-able class * Static and Dynamic HTML page
lwip/Core/device.cpp@2:360fda42fefd, 2010-01-12 (annotated)
- Committer:
- iva2k
- Date:
- Tue Jan 12 07:41:55 2010 +0000
- Revision:
- 2:360fda42fefd
- Parent:
- 0:886e4b3119ad
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
iva2k | 0:886e4b3119ad | 1 | #include "mbed.h" |
iva2k | 0:886e4b3119ad | 2 | |
iva2k | 0:886e4b3119ad | 3 | using namespace mbed; |
iva2k | 0:886e4b3119ad | 4 | |
iva2k | 0:886e4b3119ad | 5 | Ethernet *eth; |
iva2k | 0:886e4b3119ad | 6 | #ifdef __cplusplus |
iva2k | 0:886e4b3119ad | 7 | extern "C" { |
iva2k | 0:886e4b3119ad | 8 | #endif |
iva2k | 0:886e4b3119ad | 9 | |
iva2k | 0:886e4b3119ad | 10 | #include "lwip/opt.h" |
iva2k | 0:886e4b3119ad | 11 | |
iva2k | 0:886e4b3119ad | 12 | #include "lwip/def.h" |
iva2k | 0:886e4b3119ad | 13 | #include "lwip/pbuf.h" |
iva2k | 0:886e4b3119ad | 14 | #include "lwip/sys.h" |
iva2k | 0:886e4b3119ad | 15 | #include "lwip/stats.h" |
iva2k | 0:886e4b3119ad | 16 | #include "netif/etharp.h" |
iva2k | 0:886e4b3119ad | 17 | #include "string.h" |
iva2k | 0:886e4b3119ad | 18 | |
iva2k | 0:886e4b3119ad | 19 | #define IFNAME0 'E' |
iva2k | 0:886e4b3119ad | 20 | #define IFNAME1 'X' |
iva2k | 0:886e4b3119ad | 21 | |
iva2k | 0:886e4b3119ad | 22 | #define min(x,y) (((x)<(y))?(x):(y)) |
iva2k | 0:886e4b3119ad | 23 | |
iva2k | 0:886e4b3119ad | 24 | struct netif *gnetif; |
iva2k | 0:886e4b3119ad | 25 | |
iva2k | 0:886e4b3119ad | 26 | static err_t device_output(struct netif *netif, struct pbuf *p) { |
iva2k | 0:886e4b3119ad | 27 | #if ETH_PAD_SIZE |
iva2k | 0:886e4b3119ad | 28 | pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */ |
iva2k | 0:886e4b3119ad | 29 | #endif |
iva2k | 0:886e4b3119ad | 30 | |
iva2k | 0:886e4b3119ad | 31 | do { |
iva2k | 0:886e4b3119ad | 32 | eth->write((const char *)p->payload, p->len); |
iva2k | 0:886e4b3119ad | 33 | } while((p = p->next)!=NULL); |
iva2k | 0:886e4b3119ad | 34 | |
iva2k | 0:886e4b3119ad | 35 | eth->send(); |
iva2k | 0:886e4b3119ad | 36 | |
iva2k | 0:886e4b3119ad | 37 | #if ETH_PAD_SIZE |
iva2k | 0:886e4b3119ad | 38 | pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */ |
iva2k | 0:886e4b3119ad | 39 | #endif |
iva2k | 0:886e4b3119ad | 40 | |
iva2k | 0:886e4b3119ad | 41 | LINK_STATS_INC(link.xmit); |
iva2k | 0:886e4b3119ad | 42 | return ERR_OK; |
iva2k | 0:886e4b3119ad | 43 | } |
iva2k | 0:886e4b3119ad | 44 | |
iva2k | 0:886e4b3119ad | 45 | void device_poll() { |
iva2k | 0:886e4b3119ad | 46 | struct eth_hdr *ethhdr; |
iva2k | 0:886e4b3119ad | 47 | struct pbuf *frame, *p; |
iva2k | 0:886e4b3119ad | 48 | int len, read; |
iva2k | 0:886e4b3119ad | 49 | |
iva2k | 0:886e4b3119ad | 50 | while((len = eth->receive()) != 0) { |
iva2k | 0:886e4b3119ad | 51 | frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL); |
iva2k | 0:886e4b3119ad | 52 | if(frame == NULL) { |
iva2k | 0:886e4b3119ad | 53 | return; |
iva2k | 0:886e4b3119ad | 54 | } |
iva2k | 0:886e4b3119ad | 55 | p = frame; |
iva2k | 0:886e4b3119ad | 56 | do { |
iva2k | 0:886e4b3119ad | 57 | read = eth->read((char *)p->payload, p->len); |
iva2k | 0:886e4b3119ad | 58 | p = p->next; |
iva2k | 0:886e4b3119ad | 59 | } while(p != NULL && read != 0); |
iva2k | 0:886e4b3119ad | 60 | |
iva2k | 0:886e4b3119ad | 61 | #if ETH_PAD_SIZE |
iva2k | 0:886e4b3119ad | 62 | pbuf_header(p, ETH_PAD_SIZE); |
iva2k | 0:886e4b3119ad | 63 | #endif |
iva2k | 0:886e4b3119ad | 64 | |
iva2k | 0:886e4b3119ad | 65 | ethhdr = (struct eth_hdr *)(frame->payload); |
iva2k | 0:886e4b3119ad | 66 | |
iva2k | 0:886e4b3119ad | 67 | switch(htons(ethhdr->type)) { |
iva2k | 0:886e4b3119ad | 68 | |
iva2k | 0:886e4b3119ad | 69 | case ETHTYPE_IP: |
iva2k | 0:886e4b3119ad | 70 | etharp_ip_input(gnetif, frame); |
iva2k | 0:886e4b3119ad | 71 | pbuf_header(frame, -((s16_t) sizeof(struct eth_hdr))); |
iva2k | 0:886e4b3119ad | 72 | gnetif->input(frame, gnetif); |
iva2k | 0:886e4b3119ad | 73 | break; |
iva2k | 0:886e4b3119ad | 74 | |
iva2k | 0:886e4b3119ad | 75 | case ETHTYPE_ARP: |
iva2k | 0:886e4b3119ad | 76 | etharp_arp_input(gnetif, (struct eth_addr *)(gnetif->hwaddr), frame); |
iva2k | 0:886e4b3119ad | 77 | break; |
iva2k | 0:886e4b3119ad | 78 | |
iva2k | 0:886e4b3119ad | 79 | default: |
iva2k | 0:886e4b3119ad | 80 | break; |
iva2k | 0:886e4b3119ad | 81 | } |
iva2k | 0:886e4b3119ad | 82 | pbuf_free(frame); |
iva2k | 0:886e4b3119ad | 83 | } |
iva2k | 0:886e4b3119ad | 84 | } |
iva2k | 0:886e4b3119ad | 85 | |
iva2k | 0:886e4b3119ad | 86 | err_t device_init(struct netif *netif) { |
iva2k | 0:886e4b3119ad | 87 | LWIP_ASSERT("netif != NULL", (netif != NULL)); |
iva2k | 0:886e4b3119ad | 88 | |
iva2k | 0:886e4b3119ad | 89 | NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA); |
iva2k | 0:886e4b3119ad | 90 | |
iva2k | 0:886e4b3119ad | 91 | /* maximum transfer unit */ |
iva2k | 0:886e4b3119ad | 92 | netif->mtu = 0x2EA; |
iva2k | 0:886e4b3119ad | 93 | |
iva2k | 0:886e4b3119ad | 94 | /* device capabilities */ |
iva2k | 0:886e4b3119ad | 95 | /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */ |
iva2k | 0:886e4b3119ad | 96 | netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; |
iva2k | 0:886e4b3119ad | 97 | |
iva2k | 0:886e4b3119ad | 98 | netif->state = NULL; |
iva2k | 0:886e4b3119ad | 99 | gnetif = netif; |
iva2k | 0:886e4b3119ad | 100 | |
iva2k | 0:886e4b3119ad | 101 | netif->name[0] = IFNAME0; |
iva2k | 0:886e4b3119ad | 102 | netif->name[1] = IFNAME1; |
iva2k | 0:886e4b3119ad | 103 | |
iva2k | 0:886e4b3119ad | 104 | /* We directly use etharp_output() here to save a function call. |
iva2k | 0:886e4b3119ad | 105 | * You can instead declare your own function an call etharp_output() |
iva2k | 0:886e4b3119ad | 106 | * from it if you have to do some checks before sending (e.g. if link |
iva2k | 0:886e4b3119ad | 107 | * is available...) */ |
iva2k | 0:886e4b3119ad | 108 | netif->output = etharp_output; |
iva2k | 0:886e4b3119ad | 109 | netif->linkoutput = device_output; |
iva2k | 0:886e4b3119ad | 110 | |
iva2k | 0:886e4b3119ad | 111 | eth = new Ethernet(); |
iva2k | 0:886e4b3119ad | 112 | |
iva2k | 0:886e4b3119ad | 113 | return ERR_OK; |
iva2k | 0:886e4b3119ad | 114 | } |
iva2k | 0:886e4b3119ad | 115 | |
iva2k | 0:886e4b3119ad | 116 | void device_address(char *mac) { |
iva2k | 0:886e4b3119ad | 117 | eth->address(mac); |
iva2k | 0:886e4b3119ad | 118 | } |
iva2k | 0:886e4b3119ad | 119 | |
iva2k | 0:886e4b3119ad | 120 | #ifdef __cplusplus |
iva2k | 0:886e4b3119ad | 121 | }; |
iva2k | 0:886e4b3119ad | 122 | #endif |