mbed official / lwip-eth

NXP LPC1768 Ethernet driver for lwip and CMSIS-RTOS

Dependents:   EthernetInterface EthernetInterface EthernetInterface_RSF EthernetInterface ... more

Legacy Networking Libraries

This is an mbed 2 networking library. For mbed 5, the networking libraries have been revised to better support additional network stacks and thread safety here.

This library is based on the code of the NXP LPC port of the Lightweight TCP/IP Stack

Copyright(C) 2011, NXP Semiconductor
All rights reserved.

Software that is described herein is for illustrative purposes only
which provides customers with programming information regarding the
products. This software is supplied "AS IS" without any warranties.
NXP Semiconductors assumes no responsibility or liability for the
use of the software, conveys no license or title under any patent,
copyright, or mask work right to the product. NXP Semiconductors
reserves the right to make changes in the software without
notification. NXP Semiconductors also make no representation or
warranty that such application will be suitable for the specified
use without further testing or modification.

arch/TARGET_VK_RZ_A1H/rza1_emac.c@33:9de8bd8ca1c8, 2016-05-26 (annotated)

Committer:
mbed_official
Date:
Thu May 26 09:00:26 2016 +0100
Revision:
33:9de8bd8ca1c8
Parent:
30:da4b2487ee7b 
Synchronized with git revision 745ebbf4557f0f3964f73063c1d88ddbcda0ed22



Full URL: https://github.com/mbedmicro/mbed/commit/745ebbf4557f0f3964f73063c1d88ddbcda0ed22/



Synch - fix lwip-eth path

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 30:da4b2487ee7b 1 #include "lwip/opt.h"
mbed_official 30:da4b2487ee7b 2 #include "lwip/tcpip.h"
mbed_official 30:da4b2487ee7b 3 #include "netif/etharp.h"
mbed_official 30:da4b2487ee7b 4 #include "mbed_interface.h"
mbed_official 30:da4b2487ee7b 5 #include "ethernet_api.h"
mbed_official 30:da4b2487ee7b 6 #include "ethernetext_api.h"
mbed_official 30:da4b2487ee7b 7
mbed_official 30:da4b2487ee7b 8 #define RECV_TASK_PRI (osPriorityNormal)
mbed_official 30:da4b2487ee7b 9 #define PHY_TASK_PRI (osPriorityNormal)
mbed_official 30:da4b2487ee7b 10 #define PHY_TASK_WAIT (200)
mbed_official 30:da4b2487ee7b 11
mbed_official 30:da4b2487ee7b 12 /* memory */
mbed_official 30:da4b2487ee7b 13 static sys_sem_t recv_ready_sem; /* receive ready semaphore */
mbed_official 30:da4b2487ee7b 14
mbed_official 30:da4b2487ee7b 15 /* function */
mbed_official 30:da4b2487ee7b 16 static void rza1_recv_task(void *arg);
mbed_official 30:da4b2487ee7b 17 static void rza1_phy_task(void *arg);
mbed_official 30:da4b2487ee7b 18 static err_t rza1_etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr);
mbed_official 30:da4b2487ee7b 19 static err_t rza1_low_level_output(struct netif *netif, struct pbuf *p);
mbed_official 30:da4b2487ee7b 20 static void rza1_recv_callback(void);
mbed_official 30:da4b2487ee7b 21
mbed_official 30:da4b2487ee7b 22 static void rza1_recv_task(void *arg) {
mbed_official 30:da4b2487ee7b 23 struct netif *netif = (struct netif*)arg;
mbed_official 30:da4b2487ee7b 24 struct eth_hdr *ethhdr;
mbed_official 30:da4b2487ee7b 25 u16_t recv_size;
mbed_official 30:da4b2487ee7b 26 struct pbuf *p;
mbed_official 30:da4b2487ee7b 27 int cnt;
mbed_official 30:da4b2487ee7b 28
mbed_official 30:da4b2487ee7b 29 while (1) {
mbed_official 30:da4b2487ee7b 30 sys_arch_sem_wait(&recv_ready_sem, 0);
mbed_official 30:da4b2487ee7b 31 for (cnt = 0; cnt < 16; cnt++) {
mbed_official 30:da4b2487ee7b 32 recv_size = ethernet_receive();
mbed_official 30:da4b2487ee7b 33 if (recv_size != 0) {
mbed_official 30:da4b2487ee7b 34 p = pbuf_alloc(PBUF_RAW, recv_size, PBUF_RAM);
mbed_official 30:da4b2487ee7b 35 if (p != NULL) {
mbed_official 30:da4b2487ee7b 36 (void)ethernet_read((char *)p->payload, p->len);
mbed_official 30:da4b2487ee7b 37 ethhdr = p->payload;
mbed_official 30:da4b2487ee7b 38 switch (htons(ethhdr->type)) {
mbed_official 30:da4b2487ee7b 39 case ETHTYPE_IP:
mbed_official 30:da4b2487ee7b 40 case ETHTYPE_ARP:
mbed_official 30:da4b2487ee7b 41 #if PPPOE_SUPPORT
mbed_official 30:da4b2487ee7b 42 case ETHTYPE_PPPOEDISC:
mbed_official 30:da4b2487ee7b 43 case ETHTYPE_PPPOE:
mbed_official 30:da4b2487ee7b 44 #endif /* PPPOE_SUPPORT */
mbed_official 30:da4b2487ee7b 45 /* full packet send to tcpip_thread to process */
mbed_official 30:da4b2487ee7b 46 if (netif->input(p, netif) != ERR_OK) {
mbed_official 30:da4b2487ee7b 47 /* Free buffer */
mbed_official 30:da4b2487ee7b 48 pbuf_free(p);
mbed_official 30:da4b2487ee7b 49 }
mbed_official 30:da4b2487ee7b 50 break;
mbed_official 30:da4b2487ee7b 51 default:
mbed_official 30:da4b2487ee7b 52 /* Return buffer */
mbed_official 30:da4b2487ee7b 53 pbuf_free(p);
mbed_official 30:da4b2487ee7b 54 break;
mbed_official 30:da4b2487ee7b 55 }
mbed_official 30:da4b2487ee7b 56 }
mbed_official 30:da4b2487ee7b 57 } else {
mbed_official 30:da4b2487ee7b 58 break;
mbed_official 30:da4b2487ee7b 59 }
mbed_official 30:da4b2487ee7b 60 }
mbed_official 30:da4b2487ee7b 61 }
mbed_official 30:da4b2487ee7b 62 }
mbed_official 30:da4b2487ee7b 63
mbed_official 30:da4b2487ee7b 64 static void rza1_phy_task(void *arg) {
mbed_official 30:da4b2487ee7b 65 struct netif *netif = (struct netif*)arg;
mbed_official 30:da4b2487ee7b 66 s32_t connect_sts = 0; /* 0: disconnect, 1:connect */
mbed_official 30:da4b2487ee7b 67 s32_t link_sts;
mbed_official 30:da4b2487ee7b 68 s32_t link_mode_new = NEGO_FAIL;
mbed_official 30:da4b2487ee7b 69 s32_t link_mode_old = NEGO_FAIL;
mbed_official 30:da4b2487ee7b 70
mbed_official 30:da4b2487ee7b 71 while (1) {
mbed_official 30:da4b2487ee7b 72 link_sts = ethernet_link();
mbed_official 30:da4b2487ee7b 73 if (link_sts == 1) {
mbed_official 30:da4b2487ee7b 74 link_mode_new = ethernetext_chk_link_mode();
mbed_official 30:da4b2487ee7b 75 if (link_mode_new != link_mode_old) {
mbed_official 30:da4b2487ee7b 76 if (connect_sts == 1) {
mbed_official 30:da4b2487ee7b 77 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, (void*) netif, 1);
mbed_official 30:da4b2487ee7b 78 }
mbed_official 30:da4b2487ee7b 79 if (link_mode_new != NEGO_FAIL) {
mbed_official 30:da4b2487ee7b 80 ethernetext_set_link_mode(link_mode_new);
mbed_official 30:da4b2487ee7b 81 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, (void*) netif, 1);
mbed_official 30:da4b2487ee7b 82 connect_sts = 1;
mbed_official 30:da4b2487ee7b 83 }
mbed_official 30:da4b2487ee7b 84 }
mbed_official 30:da4b2487ee7b 85 } else {
mbed_official 30:da4b2487ee7b 86 if (connect_sts != 0) {
mbed_official 30:da4b2487ee7b 87 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, (void*) netif, 1);
mbed_official 30:da4b2487ee7b 88 link_mode_new = NEGO_FAIL;
mbed_official 30:da4b2487ee7b 89 connect_sts = 0;
mbed_official 30:da4b2487ee7b 90 }
mbed_official 30:da4b2487ee7b 91 }
mbed_official 30:da4b2487ee7b 92 link_mode_old = link_mode_new;
mbed_official 30:da4b2487ee7b 93 osDelay(PHY_TASK_WAIT);
mbed_official 30:da4b2487ee7b 94 }
mbed_official 30:da4b2487ee7b 95 }
mbed_official 30:da4b2487ee7b 96
mbed_official 30:da4b2487ee7b 97 static err_t rza1_etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr) {
mbed_official 30:da4b2487ee7b 98 /* Only send packet is link is up */
mbed_official 30:da4b2487ee7b 99 if (netif->flags & NETIF_FLAG_LINK_UP) {
mbed_official 30:da4b2487ee7b 100 return etharp_output(netif, q, ipaddr);
mbed_official 30:da4b2487ee7b 101 }
mbed_official 30:da4b2487ee7b 102
mbed_official 30:da4b2487ee7b 103 return ERR_CONN;
mbed_official 30:da4b2487ee7b 104 }
mbed_official 30:da4b2487ee7b 105
mbed_official 30:da4b2487ee7b 106 static err_t rza1_low_level_output(struct netif *netif, struct pbuf *p) {
mbed_official 30:da4b2487ee7b 107 struct pbuf *q;
mbed_official 30:da4b2487ee7b 108 s32_t cnt;
mbed_official 30:da4b2487ee7b 109 err_t err = ERR_MEM;
mbed_official 30:da4b2487ee7b 110 s32_t write_size = 0;
mbed_official 30:da4b2487ee7b 111
mbed_official 30:da4b2487ee7b 112 if ((p->payload != NULL) && (p->len != 0)) {
mbed_official 30:da4b2487ee7b 113 /* If the first data can't be written, transmit descriptor is full. */
mbed_official 30:da4b2487ee7b 114 for (cnt = 0; cnt < 100; cnt++) {
mbed_official 30:da4b2487ee7b 115 write_size = ethernet_write((char *)p->payload, p->len);
mbed_official 30:da4b2487ee7b 116 if (write_size != 0) {
mbed_official 30:da4b2487ee7b 117 break;
mbed_official 30:da4b2487ee7b 118 }
mbed_official 30:da4b2487ee7b 119 osDelay(1);
mbed_official 30:da4b2487ee7b 120 }
mbed_official 30:da4b2487ee7b 121 if (write_size != 0) {
mbed_official 30:da4b2487ee7b 122 for (q = p->next; q != NULL; q = q->next) {
mbed_official 30:da4b2487ee7b 123 (void)ethernet_write((char *)q->payload, q->len);
mbed_official 30:da4b2487ee7b 124 }
mbed_official 30:da4b2487ee7b 125 if (ethernet_send() == 1) {
mbed_official 30:da4b2487ee7b 126 err = ERR_OK;
mbed_official 30:da4b2487ee7b 127 }
mbed_official 30:da4b2487ee7b 128 }
mbed_official 30:da4b2487ee7b 129 }
mbed_official 30:da4b2487ee7b 130
mbed_official 30:da4b2487ee7b 131 return err;
mbed_official 30:da4b2487ee7b 132 }
mbed_official 30:da4b2487ee7b 133
mbed_official 30:da4b2487ee7b 134 static void rza1_recv_callback(void) {
mbed_official 30:da4b2487ee7b 135 sys_sem_signal(&recv_ready_sem);
mbed_official 30:da4b2487ee7b 136 }
mbed_official 30:da4b2487ee7b 137
mbed_official 30:da4b2487ee7b 138 err_t eth_arch_enetif_init(struct netif *netif)
mbed_official 30:da4b2487ee7b 139 {
mbed_official 30:da4b2487ee7b 140 ethernet_cfg_t ethcfg;
mbed_official 30:da4b2487ee7b 141
mbed_official 30:da4b2487ee7b 142 /* set MAC hardware address */
mbed_official 30:da4b2487ee7b 143 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
mbed_official 30:da4b2487ee7b 144 netif->hwaddr[0] = MBED_MAC_ADDR_0;
mbed_official 30:da4b2487ee7b 145 netif->hwaddr[1] = MBED_MAC_ADDR_1;
mbed_official 30:da4b2487ee7b 146 netif->hwaddr[2] = MBED_MAC_ADDR_2;
mbed_official 30:da4b2487ee7b 147 netif->hwaddr[3] = MBED_MAC_ADDR_3;
mbed_official 30:da4b2487ee7b 148 netif->hwaddr[4] = MBED_MAC_ADDR_4;
mbed_official 30:da4b2487ee7b 149 netif->hwaddr[5] = MBED_MAC_ADDR_5;
mbed_official 30:da4b2487ee7b 150 #else
mbed_official 30:da4b2487ee7b 151 mbed_mac_address((char *)netif->hwaddr);
mbed_official 30:da4b2487ee7b 152 #endif
mbed_official 30:da4b2487ee7b 153 netif->hwaddr_len = ETHARP_HWADDR_LEN;
mbed_official 30:da4b2487ee7b 154
mbed_official 30:da4b2487ee7b 155 /* maximum transfer unit */
mbed_official 30:da4b2487ee7b 156 netif->mtu = 1500;
mbed_official 30:da4b2487ee7b 157
mbed_official 30:da4b2487ee7b 158 /* device capabilities */
mbed_official 30:da4b2487ee7b 159 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
mbed_official 30:da4b2487ee7b 160
mbed_official 30:da4b2487ee7b 161 #if LWIP_NETIF_HOSTNAME
mbed_official 30:da4b2487ee7b 162 /* Initialize interface hostname */
mbed_official 30:da4b2487ee7b 163 netif->hostname = "lwiprza1";
mbed_official 30:da4b2487ee7b 164 #endif /* LWIP_NETIF_HOSTNAME */
mbed_official 30:da4b2487ee7b 165
mbed_official 30:da4b2487ee7b 166 netif->name[0] = 'e';
mbed_official 30:da4b2487ee7b 167 netif->name[1] = 'n';
mbed_official 30:da4b2487ee7b 168
mbed_official 30:da4b2487ee7b 169 netif->output = rza1_etharp_output;
mbed_official 30:da4b2487ee7b 170 netif->linkoutput = rza1_low_level_output;
mbed_official 30:da4b2487ee7b 171
mbed_official 30:da4b2487ee7b 172 /* Initialize the hardware */
mbed_official 30:da4b2487ee7b 173 ethcfg.int_priority = 6;
mbed_official 30:da4b2487ee7b 174 ethcfg.recv_cb = &rza1_recv_callback;
mbed_official 30:da4b2487ee7b 175 ethcfg.ether_mac = (char *)netif->hwaddr;
mbed_official 30:da4b2487ee7b 176 ethernetext_init(&ethcfg);
mbed_official 30:da4b2487ee7b 177
mbed_official 30:da4b2487ee7b 178 /* semaphore */
mbed_official 30:da4b2487ee7b 179 sys_sem_new(&recv_ready_sem, 0);
mbed_official 30:da4b2487ee7b 180
mbed_official 30:da4b2487ee7b 181 /* task */
mbed_official 30:da4b2487ee7b 182 sys_thread_new("rza1_recv_task", rza1_recv_task, netif, DEFAULT_THREAD_STACKSIZE, RECV_TASK_PRI);
mbed_official 30:da4b2487ee7b 183 sys_thread_new("rza1_phy_task", rza1_phy_task, netif, DEFAULT_THREAD_STACKSIZE, PHY_TASK_PRI);
mbed_official 30:da4b2487ee7b 184
mbed_official 30:da4b2487ee7b 185 return ERR_OK;
mbed_official 30:da4b2487ee7b 186 }
mbed_official 30:da4b2487ee7b 187
mbed_official 30:da4b2487ee7b 188 void eth_arch_enable_interrupts(void) {
mbed_official 30:da4b2487ee7b 189 ethernetext_start_stop(1);
mbed_official 30:da4b2487ee7b 190 }
mbed_official 30:da4b2487ee7b 191
mbed_official 30:da4b2487ee7b 192 void eth_arch_disable_interrupts(void) {
mbed_official 30:da4b2487ee7b 193 ethernetext_start_stop(0);
mbed_official 30:da4b2487ee7b 194 }