1 /*************************************************************************** 2 * Copyright (c) 2024 Microsoft Corporation 3 * 4 * This program and the accompanying materials are made available under the 5 * terms of the MIT License which is available at 6 * https://opensource.org/licenses/MIT. 7 * 8 * SPDX-License-Identifier: MIT 9 **************************************************************************/ 10 11 12 /**************************************************************************/ 13 /**************************************************************************/ 14 /** */ 15 /** NetX Component */ 16 /** */ 17 /** Internet Protocol (IP) */ 18 /** */ 19 /**************************************************************************/ 20 /**************************************************************************/ 21 22 #define NX_SOURCE_CODE 23 24 25 /* Include necessary system files. */ 26 27 #include "nx_api.h" 28 #include "nx_ip.h" 29 30 31 /**************************************************************************/ 32 /* */ 33 /* FUNCTION RELEASE */ 34 /* */ 35 /* _nx_ip_driver_deferred_enable PORTABLE C */ 36 /* 6.1 */ 37 /* AUTHOR */ 38 /* */ 39 /* Yuxin Zhou, Microsoft Corporation */ 40 /* */ 41 /* DESCRIPTION */ 42 /* */ 43 /* This function enabled the deferred driver packet processing */ 44 /* in NetX. The supplied driver packet handler is called from the */ 45 /* IP helper thread to fully process a received driver packet. The */ 46 /* driver's receive packet processing only makes a call to the */ 47 /* _nx_ip_driver_deferred_receive processing from the ISR. */ 48 /* */ 49 /* INPUT */ 50 /* */ 51 /* ip_ptr Pointer to IP control block */ 52 /* driver_deferred_packet_handler Function pointer to driver's */ 53 /* deferred packet handling */ 54 /* routine */ 55 /* */ 56 /* OUTPUT */ 57 /* */ 58 /* None */ 59 /* */ 60 /* CALLS */ 61 /* */ 62 /* None */ 63 /* */ 64 /* CALLED BY */ 65 /* */ 66 /* Application Driver Initialization */ 67 /* */ 68 /* RELEASE HISTORY */ 69 /* */ 70 /* DATE NAME DESCRIPTION */ 71 /* */ 72 /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ 73 /* 09-30-2020 Yuxin Zhou Modified comment(s), */ 74 /* resulting in version 6.1 */ 75 /* */ 76 /**************************************************************************/ _nx_ip_driver_deferred_enable(NX_IP * ip_ptr,VOID (* driver_deferred_packet_handler)(NX_IP * ip_ptr,NX_PACKET * packet_ptr))77VOID _nx_ip_driver_deferred_enable(NX_IP *ip_ptr, VOID (*driver_deferred_packet_handler)(NX_IP *ip_ptr, NX_PACKET *packet_ptr)) 78 { 79 80 #ifdef NX_DRIVER_DEFERRED_PROCESSING 81 TX_INTERRUPT_SAVE_AREA 82 83 /* Disable interrupts. */ 84 TX_DISABLE 85 86 /* Initialize the deferred packet queue to be empty */ 87 ip_ptr -> nx_ip_driver_deferred_packet_head = NX_NULL; 88 ip_ptr -> nx_ip_driver_deferred_packet_tail = NX_NULL; 89 90 /* Setup the driver's deferred packet processing routine */ 91 ip_ptr -> nx_ip_driver_deferred_packet_handler = driver_deferred_packet_handler; 92 93 TX_RESTORE 94 #else 95 NX_PARAMETER_NOT_USED(ip_ptr); 96 NX_PARAMETER_NOT_USED(driver_deferred_packet_handler); 97 #endif 98 } 99 100
