diff options
| author | PProvost <[email protected]> | 2020-05-11 08:55:07 -0600 |
|---|---|---|
| committer | PProvost <[email protected]> | 2020-05-11 08:55:07 -0600 |
| commit | 852421fda03a7722d7adb45b187235cd66fa264e (patch) | |
| tree | b117e1339a047347a3d7ebf3eeb1891168cc9b9b /common/src/txe_timer_change.c | |
Initial commit
Diffstat (limited to 'common/src/txe_timer_change.c')
| -rw-r--r-- | common/src/txe_timer_change.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/common/src/txe_timer_change.c b/common/src/txe_timer_change.c new file mode 100644 index 00000000..7be337f9 --- /dev/null +++ b/common/src/txe_timer_change.c @@ -0,0 +1,124 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) Microsoft Corporation. All rights reserved. */ +/* */ +/* This software is licensed under the Microsoft Software License */ +/* Terms for Microsoft Azure RTOS. Full text of the license can be */ +/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ +/* and in the root directory of this software. */ +/* */ +/**************************************************************************/ + + +/**************************************************************************/ +/**************************************************************************/ +/** */ +/** ThreadX Component */ +/** */ +/** Timer */ +/** */ +/**************************************************************************/ +/**************************************************************************/ + +#define TX_SOURCE_CODE + + +/* Include necessary system files. */ + +#include "tx_api.h" +#include "tx_initialize.h" +#include "tx_thread.h" +#include "tx_timer.h" + + +/**************************************************************************/ +/* */ +/* FUNCTION RELEASE */ +/* */ +/* _txe_timer_change PORTABLE C */ +/* 6.0 */ +/* AUTHOR */ +/* */ +/* William E. Lamie, Microsoft Corporation */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function checks for errors in the application timer change */ +/* function call. */ +/* */ +/* INPUT */ +/* */ +/* timer_ptr Pointer to timer control block */ +/* initial_ticks Initial expiration ticks */ +/* reschedule_ticks Reschedule ticks */ +/* */ +/* OUTPUT */ +/* */ +/* TX_TIMER_ERROR Invalid application timer pointer */ +/* TX_TICK_ERROR Invalid initial tick value of 0 */ +/* TX_CALLER_ERROR Invalid caller of this function */ +/* status Actual completion status */ +/* */ +/* CALLS */ +/* */ +/* _tx_timer_change Actual timer change function */ +/* */ +/* CALLED BY */ +/* */ +/* Application Code */ +/* */ +/* RELEASE HISTORY */ +/* */ +/* DATE NAME DESCRIPTION */ +/* */ +/* 05-19-2020 William E. Lamie Initial Version 6.0 */ +/* */ +/**************************************************************************/ +UINT _txe_timer_change(TX_TIMER *timer_ptr, ULONG initial_ticks, ULONG reschedule_ticks) +{ + +UINT status; + + + /* Check for an invalid timer pointer. */ + if (timer_ptr == TX_NULL) + { + + /* Timer pointer is invalid, return appropriate error code. */ + status = TX_TIMER_ERROR; + } + + /* Now check for invalid timer ID. */ + else if (timer_ptr -> tx_timer_id != TX_TIMER_ID) + { + + /* Timer pointer is invalid, return appropriate error code. */ + status = TX_TIMER_ERROR; + } + + /* Check for an illegal initial tick value. */ + else if (initial_ticks == ((ULONG) 0)) + { + + /* Invalid initial tick value, return appropriate error code. */ + status = TX_TICK_ERROR; + } + + /* Check for invalid caller of this function. */ + else if (TX_THREAD_GET_SYSTEM_STATE() >= TX_INITIALIZE_IN_PROGRESS) + { + + /* Invalid caller of this function, return appropriate error code. */ + status = TX_CALLER_ERROR; + } + else + { + + /* Call actual application timer function. */ + status = _tx_timer_change(timer_ptr, initial_ticks, reschedule_ticks); + } + + /* Return completion status. */ + return(status); +} + |