Honored Contributor
Honored Contributorerror_t generate_mac_addr(unsigned char mac_addr[6])
{ error_t error = -1; alt_u32 ser_num = 0; printf("\nCan't read the MAC address from your board. We will assign you\n"); printf("a MAC address.\n\n"); ser_num = get_serial_number(); if (ser_num) { /* This is the Altera Vendor ID */ mac_addr[0] = 0x0; mac_addr[1] = 0x7; mac_addr[2] = 0xed; /* Reserverd Board identifier */ mac_addr[3] = 0xFF; mac_addr[4] = (ser_num & 0xff00) >> 8; mac_addr[5] = ser_num & 0xff; printf("Your Ethernet MAC address is %02x:%02x:%02x:%02x:%02x:%02x\n", mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]); error = 0; } return error; } /* * get_board_mac_addr * * Read the MAC address in a board specific way * */ error_t get_board_mac_addr(unsigned char mac_addr[6]) { error_t error = 0; alt_u32 signature; if (!error) { signature = IORD_32DIRECT(last_flash_sector, 0); if (signature != 0x00005afe) { error = generate_and_store_mac_addr(); } } if (!error) { mac_addr[0] = IORD_8DIRECT(last_flash_sector, 4); mac_addr[1] = IORD_8DIRECT(last_flash_sector, 5); mac_addr[2] = IORD_8DIRECT(last_flash_sector, 6); mac_addr[3] = IORD_8DIRECT(last_flash_sector, 7); mac_addr[4] = IORD_8DIRECT(last_flash_sector, 8); mac_addr[5] = IORD_8DIRECT(last_flash_sector, 9); printf("Your Ethernet MAC address is %02x:%02x:%02x:%02x:%02x:%02x\n", mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]); } return error; } /* * get_mac_addr * * Read the MAC address in a board specific way * */ int get_mac_addr(NET net, unsigned char mac_addr[6]) { error_t error = 0; error = get_board_mac_addr(mac_addr); if(error) { /* Failed read MAC address from flash, prompt user to enter serial number to generate MAC address. */ error = generate_mac_addr(mac_addr); } return error; } /* * get_ip_addr() * * This routine is called by InterNiche to obtain an IP address for the * specified network adapter. Like the MAC address, obtaining an IP address is * very system-dependant and therefore this function is exported for the * developer to control. * * In our system, we are either attempting DHCP auto-negotiation of IP address, * or we are setting our own static IP, Gateway, and Subnet Mask addresses our * self. This routine is where that happens. */ int get_ip_addr(alt_iniche_dev *p_dev, ip_addr* ipaddr, ip_addr* netmask, ip_addr* gw, int* use_dhcp) { IP4_ADDR(*ipaddr, IPADDR0, IPADDR1, IPADDR2, IPADDR3); IP4_ADDR(*gw, GWADDR0, GWADDR1, GWADDR2, GWADDR3); IP4_ADDR(*netmask, MSKADDR0, MSKADDR1, MSKADDR2, MSKADDR3); # ifdef DHCP_CLIENT *use_dhcp = 1; # else /* not DHCP_CLIENT */ *use_dhcp = 0; printf("Static IP Address is %d.%d.%d.%d\n", ip4_addr1(*ipaddr), ip4_addr2(*ipaddr), ip4_addr3(*ipaddr), ip4_addr4(*ipaddr)); # endif /* not DHCP_CLIENT */ /* Non-standard API: return 1 for success */ return 1; } /******************************************************************************* * * Flash service functions. * ******************************************************************************/ # include "sys/alt_flash.h" # include "sys/alt_flash_dev.h" /* * FindLastFlashSectorOffset * * <-- pLastFlashSectorOffset Offset of last sector in flash. * * This function finds the offset to the last sector in flash and returns it * in pLastFlashSectorOffset. */ int FindLastFlashSectorOffset( alt_u32 *pLastFlashSectorOffset) { alt_flash_fd *fd; flash_region *regions; int numRegions; flash_region *pLastRegion; int lastFlashSectorOffset; int n; int error = 0; /* Open the flash device. */ fd = alt_flash_open_dev(EXT_FLASH_NAME); if (fd <= 0) error = -1; /* Get the flash info. */ if (!error) error = alt_get_flash_info(fd, ®ions, &numRegions); /* Find the last flash sector. */ if (!error) { pLastRegion = &(regions[0]); for (n = 1; n < numRegions; n++) { if (regions[n].offset > pLastRegion->offset) pLastRegion = &(regions[n]); } lastFlashSectorOffset = pLastRegion->offset + pLastRegion->region_size - pLastRegion->block_size; } /* Return results. */ if (!error) *pLastFlashSectorOffset = lastFlashSectorOffset; return (error); }
