1 /**************************************************************************/ 2 /* */ 3 /* Copyright (c) Microsoft Corporation. All rights reserved. */ 4 /* */ 5 /* This software is licensed under the Microsoft Software License */ 6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */ 7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ 8 /* and in the root directory of this software. */ 9 /* */ 10 /**************************************************************************/ 11 12 13 /**************************************************************************/ 14 /**************************************************************************/ 15 /** */ 16 /** NetX Component */ 17 /** */ 18 /** Internet Protocol (IP) */ 19 /** */ 20 /**************************************************************************/ 21 /**************************************************************************/ 22 23 #define NX_SOURCE_CODE 24 25 26 /* Include necessary system files. */ 27 28 #include "nx_api.h" 29 #include "nx_ip.h" 30 31 32 /**************************************************************************/ 33 /* */ 34 /* FUNCTION RELEASE */ 35 /* */ 36 /* _nx_ip_interface_physical_address_get PORTABLE C */ 37 /* 6.1 */ 38 /* AUTHOR */ 39 /* */ 40 /* Yuxin Zhou, Microsoft Corporation */ 41 /* */ 42 /* DESCRIPTION */ 43 /* */ 44 /* This function gets the physical address of interface. */ 45 /* */ 46 /* INPUT */ 47 /* */ 48 /* ip_ptr IP control block pointer */ 49 /* interface_index Index of interface */ 50 /* physical_msw Physical address MSW pointer */ 51 /* physical_lsw Physical address LSW pointer */ 52 /* */ 53 /* OUTPUT */ 54 /* */ 55 /* status Completion status */ 56 /* */ 57 /* CALLS */ 58 /* */ 59 /* tx_mutex_get Get protection mutex */ 60 /* tx_mutex_put Put protection mutex */ 61 /* */ 62 /* CALLED BY */ 63 /* */ 64 /* Application Code */ 65 /* */ 66 /* RELEASE HISTORY */ 67 /* */ 68 /* DATE NAME DESCRIPTION */ 69 /* */ 70 /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ 71 /* 09-30-2020 Yuxin Zhou Modified comment(s), */ 72 /* resulting in version 6.1 */ 73 /* */ 74 /**************************************************************************/ _nx_ip_interface_physical_address_get(NX_IP * ip_ptr,UINT interface_index,ULONG * physical_msw,ULONG * physical_lsw)75UINT _nx_ip_interface_physical_address_get(NX_IP *ip_ptr, UINT interface_index, 76 ULONG *physical_msw, ULONG *physical_lsw) 77 { 78 79 /* Obtain protection on this IP instance. */ 80 tx_mutex_get(&(ip_ptr -> nx_ip_protection), TX_WAIT_FOREVER); 81 82 /* Get new physical address. */ 83 *physical_msw = ip_ptr -> nx_ip_interface[interface_index].nx_interface_physical_address_msw; 84 *physical_lsw = ip_ptr -> nx_ip_interface[interface_index].nx_interface_physical_address_lsw; 85 86 /* Release the protection. */ 87 tx_mutex_put(&(ip_ptr -> nx_ip_protection)); 88 89 /* Return completion status. */ 90 return(NX_SUCCESS); 91 } 92 93
