mdio.zip_linux mdio 工具_mdio_operation

/* * Copyright <2014> Alcatel-Lucent * All Rights Reserved * This is unpublished proprietary source code of Alcatel-Lucent. * The copyrightr notice above does not evidence any actual * or intended publication of such source code. * Authors: Yu.Lu<Yu.C.Lu@alcatel-sbell.com.cn> * * Not to be disclosed or used except in accordance with applicable * agreements */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <linux/mii.h> #include <unistd.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <net/if.h> #include <linux/sockios.h> #include <netinet/in.h> #define reteck(ret) \ if(ret < 0){ \ printf("[%s()#%d] %m!,ret = 0x%x\n", __func__, __LINE__, ret); \ goto err; \ } #define help() \ printf("mdio:\n"); \ printf("read operation: mdio reg_addr\n"); \ printf("write operation: mdio reg_addr value\n"); \ printf("For example:\n"); \ printf("mdio eth0 1\n"); \ printf("mdio eth0 0 0x12\n\n"); \ exit(0); int sockfd; int main(int argc, char *argv[]){ if(argc == 1 || !strcmp(argv[1], "-h")){ help(); } struct mii_ioctl_data *mii = NULL; struct ifreq ifr; int ret; memset(&ifr, 0, sizeof(ifr)); strncpy(ifr.ifr_name, argv[1], IFNAMSIZ - 1); sockfd = socket(PF_LOCAL, SOCK_DGRAM, 0); reteck(sockfd); //get phy address in smi bus ret = ioctl(sockfd, SIOCGMIIPHY, &ifr); reteck(ret); mii = (struct mii_ioctl_data*)&ifr.ifr_data; if(argc == 3){ mii->reg_num = (uint16_t)strtoul(argv[2], NULL, 0); ret = ioctl(sockfd, SIOCGMIIREG, &ifr); reteck(ret); printf("MDIO Read: \tphy addr: 0x%x \treg: 0x%x \tvalue : 0x%x\n", mii->phy_id, mii->reg_num, mii->val_out); }else if(argc == 4){ mii->reg_num = (uint16_t)strtoul(argv[2], NULL, 0); mii->val_in = (uint16_t)strtoul(argv[3], NULL, 0); ret = ioctl(sockfd, SIOCSMIIREG, &ifr); reteck(ret); printf("MDIO Write: \tphy addr: 0x%x \treg: 0x%x \tvalue : 0x%x\n", mii->phy_id, mii->reg_num, mii->val_in); } err: close(sockfd); return 0; }