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 /** USBX Component */ 17 /** */ 18 /** Device Stack */ 19 /** */ 20 /**************************************************************************/ 21 /**************************************************************************/ 22 23 #define UX_SOURCE_CODE 24 25 26 /* Include necessary system files. */ 27 28 #include "ux_api.h" 29 #include "ux_device_stack.h" 30 31 32 #if defined(UX_DEVICE_STANDALONE) 33 /**************************************************************************/ 34 /* */ 35 /* FUNCTION RELEASE */ 36 /* */ 37 /* _ux_device_stack_tasks_run PORTABLE C */ 38 /* 6.1.10 */ 39 /* AUTHOR */ 40 /* */ 41 /* Chaoqiong Xiao, Microsoft Corporation */ 42 /* */ 43 /* DESCRIPTION */ 44 /* */ 45 /* This function runs device stack and registered classes tasks. */ 46 /* */ 47 /* It's for standalone mode. */ 48 /* */ 49 /* INPUT */ 50 /* */ 51 /* */ 52 /* OUTPUT */ 53 /* */ 54 /* UX_STATE_RESET Tasks suspended */ 55 /* UX_STATE_IDLE Activated but no task ran */ 56 /* (others > UX_STATE_IDLE) Tasks running */ 57 /* */ 58 /* CALLS */ 59 /* */ 60 /* (ux_slave_dcd_function) run DCD function */ 61 /* (ux_slave_class_task_function) run Class tasks function */ 62 /* */ 63 /* CALLED BY */ 64 /* */ 65 /* Application */ 66 /* */ 67 /* RELEASE HISTORY */ 68 /* */ 69 /* DATE NAME DESCRIPTION */ 70 /* */ 71 /* 01-31-2022 Chaoqiong Xiao Initial Version 6.1.10 */ 72 /* */ 73 /**************************************************************************/ _ux_device_stack_tasks_run(VOID)74UINT _ux_device_stack_tasks_run(VOID) 75 { 76 77 UX_SLAVE_DCD *dcd; 78 UX_SLAVE_CLASS *class_instance; 79 ULONG class_index; 80 UINT status; 81 82 83 status = UX_STATE_RESET; 84 85 /* Run all DCD tasks (pending ISR handle). */ 86 dcd = &_ux_system_slave -> ux_system_slave_dcd; 87 dcd -> ux_slave_dcd_function(dcd, UX_DCD_TASKS_RUN, UX_NULL); 88 89 /* Run all Class instance tasks. */ 90 class_instance = _ux_system_slave -> ux_system_slave_class_array; 91 for (class_index = 0; class_index < UX_SYSTEM_DEVICE_MAX_CLASS_GET(); class_index++) 92 { 93 94 /* Skip classes not used. */ 95 if (class_instance -> ux_slave_class_status == UX_UNUSED) 96 continue; 97 98 /* Skip classes has no task function. */ 99 if (class_instance -> ux_slave_class_task_function == UX_NULL) 100 continue; 101 102 /* Invoke task function. */ 103 status |= class_instance -> ux_slave_class_task_function(class_instance -> ux_slave_class_instance); 104 105 /* Move to the next class. */ 106 class_instance ++; 107 } 108 109 /* Return overall status. */ 110 return(status); 111 } 112 #endif 113
