Dewant Katare / lwip-eth_lab4

lab practicals

arch/TARGET_RZ_A1H/rza1_emac.c@28:72f8b097fbf3, 2015-08-13 (annotated)

Committer:
mbed_official
Date:
Thu Aug 13 10:45:29 2015 +0100
Revision:
28:72f8b097fbf3
Parent:
23:1283021a4a74
Child:
29:4380f0749039
Synchronized with git revision 52618298c321b56081852a0077771437414ef481



Full URL: https://github.com/mbedmicro/mbed/commit/52618298c321b56081852a0077771437414ef481/



RZ_A1H - Add RZ_A1H in RPC. Modify communication problem of Ethernet.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 22:fa7e1e2c6eb3 1 #include "lwip/opt.h"
mbed_official 22:fa7e1e2c6eb3 2 #include "lwip/tcpip.h"
mbed_official 22:fa7e1e2c6eb3 3 #include "netif/etharp.h"
mbed_official 22:fa7e1e2c6eb3 4 #include "mbed_interface.h"
mbed_official 22:fa7e1e2c6eb3 5 #include "ethernet_api.h"
mbed_official 22:fa7e1e2c6eb3 6 #include "ethernetext_api.h"
mbed_official 22:fa7e1e2c6eb3 7
mbed_official 22:fa7e1e2c6eb3 8 #define RECV_TASK_PRI (osPriorityNormal)
mbed_official 22:fa7e1e2c6eb3 9 #define PHY_TASK_PRI (osPriorityNormal)
mbed_official 22:fa7e1e2c6eb3 10 #define PHY_TASK_WAIT (200)
mbed_official 22:fa7e1e2c6eb3 11
mbed_official 22:fa7e1e2c6eb3 12 /* memory */
mbed_official 22:fa7e1e2c6eb3 13 static sys_sem_t recv_ready_sem; /* receive ready semaphore */
mbed_official 22:fa7e1e2c6eb3 14
mbed_official 22:fa7e1e2c6eb3 15 /* function */
mbed_official 22:fa7e1e2c6eb3 16 static void rza1_recv_task(void *arg);
mbed_official 22:fa7e1e2c6eb3 17 static void rza1_phy_task(void *arg);
mbed_official 22:fa7e1e2c6eb3 18 static err_t rza1_etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr);
mbed_official 22:fa7e1e2c6eb3 19 static err_t rza1_low_level_output(struct netif *netif, struct pbuf *p);
mbed_official 22:fa7e1e2c6eb3 20 static void rza1_recv_callback(void);
mbed_official 22:fa7e1e2c6eb3 21
mbed_official 22:fa7e1e2c6eb3 22 static void rza1_recv_task(void *arg) {
mbed_official 22:fa7e1e2c6eb3 23 struct netif *netif = (struct netif*)arg;
mbed_official 22:fa7e1e2c6eb3 24 struct eth_hdr *ethhdr;
mbed_official 22:fa7e1e2c6eb3 25 u16_t recv_size;
mbed_official 22:fa7e1e2c6eb3 26 struct pbuf *p;
mbed_official 22:fa7e1e2c6eb3 27
mbed_official 22:fa7e1e2c6eb3 28 while (1) {
mbed_official 22:fa7e1e2c6eb3 29 sys_arch_sem_wait(&recv_ready_sem, 0);
mbed_official 22:fa7e1e2c6eb3 30 recv_size = ethernet_receive();
mbed_official 22:fa7e1e2c6eb3 31 if (recv_size != 0) {
mbed_official 28:72f8b097fbf3 32 p = pbuf_alloc(PBUF_RAW, recv_size, PBUF_RAM);
mbed_official 22:fa7e1e2c6eb3 33 if (p != NULL) {
mbed_official 28:72f8b097fbf3 34 (void)ethernet_read((char *)p->payload, p->len);
mbed_official 22:fa7e1e2c6eb3 35 ethhdr = p->payload;
mbed_official 22:fa7e1e2c6eb3 36 switch (htons(ethhdr->type)) {
mbed_official 22:fa7e1e2c6eb3 37 case ETHTYPE_IP:
mbed_official 22:fa7e1e2c6eb3 38 case ETHTYPE_ARP:
mbed_official 22:fa7e1e2c6eb3 39 #if PPPOE_SUPPORT
mbed_official 22:fa7e1e2c6eb3 40 case ETHTYPE_PPPOEDISC:
mbed_official 22:fa7e1e2c6eb3 41 case ETHTYPE_PPPOE:
mbed_official 22:fa7e1e2c6eb3 42 #endif /* PPPOE_SUPPORT */
mbed_official 22:fa7e1e2c6eb3 43 /* full packet send to tcpip_thread to process */
mbed_official 22:fa7e1e2c6eb3 44 if (netif->input(p, netif) != ERR_OK) {
mbed_official 22:fa7e1e2c6eb3 45 /* Free buffer */
mbed_official 22:fa7e1e2c6eb3 46 pbuf_free(p);
mbed_official 22:fa7e1e2c6eb3 47 }
mbed_official 22:fa7e1e2c6eb3 48 break;
mbed_official 22:fa7e1e2c6eb3 49 default:
mbed_official 22:fa7e1e2c6eb3 50 /* Return buffer */
mbed_official 22:fa7e1e2c6eb3 51 pbuf_free(p);
mbed_official 22:fa7e1e2c6eb3 52 break;
mbed_official 22:fa7e1e2c6eb3 53 }
mbed_official 22:fa7e1e2c6eb3 54 }
mbed_official 22:fa7e1e2c6eb3 55 }
mbed_official 22:fa7e1e2c6eb3 56 }
mbed_official 22:fa7e1e2c6eb3 57 }
mbed_official 22:fa7e1e2c6eb3 58
mbed_official 22:fa7e1e2c6eb3 59 static void rza1_phy_task(void *arg) {
mbed_official 22:fa7e1e2c6eb3 60 struct netif *netif = (struct netif*)arg;
mbed_official 22:fa7e1e2c6eb3 61 s32_t connect_sts = 0; /* 0: disconnect, 1:connect */
mbed_official 22:fa7e1e2c6eb3 62 s32_t link_sts;
mbed_official 23:1283021a4a74 63 s32_t link_mode_new = NEGO_FAIL;
mbed_official 22:fa7e1e2c6eb3 64 s32_t link_mode_old = NEGO_FAIL;
mbed_official 22:fa7e1e2c6eb3 65
mbed_official 22:fa7e1e2c6eb3 66 while (1) {
mbed_official 22:fa7e1e2c6eb3 67 link_sts = ethernet_link();
mbed_official 22:fa7e1e2c6eb3 68 if (link_sts == 1) {
mbed_official 22:fa7e1e2c6eb3 69 link_mode_new = ethernetext_chk_link_mode();
mbed_official 22:fa7e1e2c6eb3 70 if (link_mode_new != link_mode_old) {
mbed_official 22:fa7e1e2c6eb3 71 if (connect_sts == 1) {
mbed_official 22:fa7e1e2c6eb3 72 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, (void*) netif, 1);
mbed_official 22:fa7e1e2c6eb3 73 }
mbed_official 22:fa7e1e2c6eb3 74 if (link_mode_new != NEGO_FAIL) {
mbed_official 22:fa7e1e2c6eb3 75 ethernetext_set_link_mode(link_mode_new);
mbed_official 22:fa7e1e2c6eb3 76 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, (void*) netif, 1);
mbed_official 22:fa7e1e2c6eb3 77 connect_sts = 1;
mbed_official 22:fa7e1e2c6eb3 78 }
mbed_official 22:fa7e1e2c6eb3 79 }
mbed_official 22:fa7e1e2c6eb3 80 } else {
mbed_official 22:fa7e1e2c6eb3 81 if (connect_sts != 0) {
mbed_official 22:fa7e1e2c6eb3 82 tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, (void*) netif, 1);
mbed_official 22:fa7e1e2c6eb3 83 link_mode_new = NEGO_FAIL;
mbed_official 22:fa7e1e2c6eb3 84 connect_sts = 0;
mbed_official 22:fa7e1e2c6eb3 85 }
mbed_official 22:fa7e1e2c6eb3 86 }
mbed_official 22:fa7e1e2c6eb3 87 link_mode_old = link_mode_new;
mbed_official 22:fa7e1e2c6eb3 88 osDelay(PHY_TASK_WAIT);
mbed_official 22:fa7e1e2c6eb3 89 }
mbed_official 22:fa7e1e2c6eb3 90 }
mbed_official 22:fa7e1e2c6eb3 91
mbed_official 22:fa7e1e2c6eb3 92 static err_t rza1_etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr) {
mbed_official 22:fa7e1e2c6eb3 93 /* Only send packet is link is up */
mbed_official 22:fa7e1e2c6eb3 94 if (netif->flags & NETIF_FLAG_LINK_UP) {
mbed_official 22:fa7e1e2c6eb3 95 return etharp_output(netif, q, ipaddr);
mbed_official 22:fa7e1e2c6eb3 96 }
mbed_official 22:fa7e1e2c6eb3 97
mbed_official 22:fa7e1e2c6eb3 98 return ERR_CONN;
mbed_official 22:fa7e1e2c6eb3 99 }
mbed_official 22:fa7e1e2c6eb3 100
mbed_official 22:fa7e1e2c6eb3 101 static err_t rza1_low_level_output(struct netif *netif, struct pbuf *p) {
mbed_official 22:fa7e1e2c6eb3 102 struct pbuf *q;
mbed_official 22:fa7e1e2c6eb3 103 s32_t cnt;
mbed_official 22:fa7e1e2c6eb3 104 err_t err = ERR_MEM;
mbed_official 22:fa7e1e2c6eb3 105 s32_t write_size = 0;
mbed_official 22:fa7e1e2c6eb3 106
mbed_official 22:fa7e1e2c6eb3 107 if ((p->payload != NULL) && (p->len != 0)) {
mbed_official 22:fa7e1e2c6eb3 108 /* If the first data can't be written, transmit descriptor is full. */
mbed_official 22:fa7e1e2c6eb3 109 for (cnt = 0; cnt < 100; cnt++) {
mbed_official 22:fa7e1e2c6eb3 110 write_size = ethernet_write((char *)p->payload, p->len);
mbed_official 22:fa7e1e2c6eb3 111 if (write_size != 0) {
mbed_official 22:fa7e1e2c6eb3 112 break;
mbed_official 22:fa7e1e2c6eb3 113 }
mbed_official 22:fa7e1e2c6eb3 114 osDelay(1);
mbed_official 22:fa7e1e2c6eb3 115 }
mbed_official 22:fa7e1e2c6eb3 116 if (write_size != 0) {
mbed_official 22:fa7e1e2c6eb3 117 for (q = p->next; q != NULL; q = q->next) {
mbed_official 22:fa7e1e2c6eb3 118 (void)ethernet_write((char *)q->payload, q->len);
mbed_official 22:fa7e1e2c6eb3 119 }
mbed_official 22:fa7e1e2c6eb3 120 if (ethernet_send() == 1) {
mbed_official 22:fa7e1e2c6eb3 121 err = ERR_OK;
mbed_official 22:fa7e1e2c6eb3 122 }
mbed_official 22:fa7e1e2c6eb3 123 }
mbed_official 22:fa7e1e2c6eb3 124 }
mbed_official 22:fa7e1e2c6eb3 125
mbed_official 22:fa7e1e2c6eb3 126 return err;
mbed_official 22:fa7e1e2c6eb3 127 }
mbed_official 22:fa7e1e2c6eb3 128
mbed_official 22:fa7e1e2c6eb3 129 static void rza1_recv_callback(void) {
mbed_official 22:fa7e1e2c6eb3 130 sys_sem_signal(&recv_ready_sem);
mbed_official 22:fa7e1e2c6eb3 131 }
mbed_official 22:fa7e1e2c6eb3 132
mbed_official 22:fa7e1e2c6eb3 133 err_t eth_arch_enetif_init(struct netif *netif)
mbed_official 22:fa7e1e2c6eb3 134 {
mbed_official 22:fa7e1e2c6eb3 135 ethernet_cfg_t ethcfg;
mbed_official 22:fa7e1e2c6eb3 136
mbed_official 22:fa7e1e2c6eb3 137 /* set MAC hardware address */
mbed_official 22:fa7e1e2c6eb3 138 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
mbed_official 22:fa7e1e2c6eb3 139 netif->hwaddr[0] = MBED_MAC_ADDR_0;
mbed_official 22:fa7e1e2c6eb3 140 netif->hwaddr[1] = MBED_MAC_ADDR_1;
mbed_official 22:fa7e1e2c6eb3 141 netif->hwaddr[2] = MBED_MAC_ADDR_2;
mbed_official 22:fa7e1e2c6eb3 142 netif->hwaddr[3] = MBED_MAC_ADDR_3;
mbed_official 22:fa7e1e2c6eb3 143 netif->hwaddr[4] = MBED_MAC_ADDR_4;
mbed_official 22:fa7e1e2c6eb3 144 netif->hwaddr[5] = MBED_MAC_ADDR_5;
mbed_official 22:fa7e1e2c6eb3 145 #else
mbed_official 22:fa7e1e2c6eb3 146 mbed_mac_address((char *)netif->hwaddr);
mbed_official 22:fa7e1e2c6eb3 147 #endif
mbed_official 22:fa7e1e2c6eb3 148 netif->hwaddr_len = ETHARP_HWADDR_LEN;
mbed_official 22:fa7e1e2c6eb3 149
mbed_official 22:fa7e1e2c6eb3 150 /* maximum transfer unit */
mbed_official 22:fa7e1e2c6eb3 151 netif->mtu = 1500;
mbed_official 22:fa7e1e2c6eb3 152
mbed_official 22:fa7e1e2c6eb3 153 /* device capabilities */
mbed_official 22:fa7e1e2c6eb3 154 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
mbed_official 22:fa7e1e2c6eb3 155
mbed_official 22:fa7e1e2c6eb3 156 #if LWIP_NETIF_HOSTNAME
mbed_official 22:fa7e1e2c6eb3 157 /* Initialize interface hostname */
mbed_official 22:fa7e1e2c6eb3 158 netif->hostname = "lwiprza1";
mbed_official 22:fa7e1e2c6eb3 159 #endif /* LWIP_NETIF_HOSTNAME */
mbed_official 22:fa7e1e2c6eb3 160
mbed_official 22:fa7e1e2c6eb3 161 netif->name[0] = 'e';
mbed_official 22:fa7e1e2c6eb3 162 netif->name[1] = 'n';
mbed_official 22:fa7e1e2c6eb3 163
mbed_official 22:fa7e1e2c6eb3 164 netif->output = rza1_etharp_output;
mbed_official 22:fa7e1e2c6eb3 165 netif->linkoutput = rza1_low_level_output;
mbed_official 22:fa7e1e2c6eb3 166
mbed_official 22:fa7e1e2c6eb3 167 /* Initialize the hardware */
mbed_official 22:fa7e1e2c6eb3 168 ethcfg.int_priority = 6;
mbed_official 22:fa7e1e2c6eb3 169 ethcfg.recv_cb = &rza1_recv_callback;
mbed_official 22:fa7e1e2c6eb3 170 ethcfg.ether_mac = (char *)netif->hwaddr;
mbed_official 22:fa7e1e2c6eb3 171 ethernetext_init(&ethcfg);
mbed_official 22:fa7e1e2c6eb3 172
mbed_official 22:fa7e1e2c6eb3 173 /* semaphore */
mbed_official 22:fa7e1e2c6eb3 174 sys_sem_new(&recv_ready_sem, 0);
mbed_official 22:fa7e1e2c6eb3 175
mbed_official 22:fa7e1e2c6eb3 176 /* task */
mbed_official 22:fa7e1e2c6eb3 177 sys_thread_new("rza1_recv_task", rza1_recv_task, netif, DEFAULT_THREAD_STACKSIZE, RECV_TASK_PRI);
mbed_official 22:fa7e1e2c6eb3 178 sys_thread_new("rza1_phy_task", rza1_phy_task, netif, DEFAULT_THREAD_STACKSIZE, PHY_TASK_PRI);
mbed_official 22:fa7e1e2c6eb3 179
mbed_official 22:fa7e1e2c6eb3 180 return ERR_OK;
mbed_official 22:fa7e1e2c6eb3 181 }
mbed_official 22:fa7e1e2c6eb3 182
mbed_official 22:fa7e1e2c6eb3 183 void eth_arch_enable_interrupts(void) {
mbed_official 22:fa7e1e2c6eb3 184 ethernetext_start_stop(1);
mbed_official 22:fa7e1e2c6eb3 185 }
mbed_official 22:fa7e1e2c6eb3 186
mbed_official 22:fa7e1e2c6eb3 187 void eth_arch_disable_interrupts(void) {
mbed_official 22:fa7e1e2c6eb3 188 ethernetext_start_stop(0);
mbed_official 22:fa7e1e2c6eb3 189 }