3 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
6 * this software and associated documentation files (the "Software"), to deal in
7 * the Software without restriction, including without limitation the rights to
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
9 * the Software, and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in all
13 * copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * http://www.FreeRTOS.org
23 * http://aws.amazon.com/freertos
30 + Added functionality to only call vTaskSwitchContext() once
31 when handling multiple interruptsources in a single interruptcall.
33 + Included Filenames changed to a .c extension to allow stepping through
41 /* Scheduler include files. */
46 static bit uxSwitchRequested;
51 void pointed Interrupt()
54 * Save the context of the current task.
56 portSAVE_CONTEXT( portINTERRUPTS_FORCED );
59 * No contextswitch requested yet
61 uxSwitchRequested = pdFALSE;
64 * Was the interrupt the FreeRTOS SystemTick?
66 #include <libFreeRTOS/Drivers/Tick/isrTick.c>
68 /*******************************************************************************
69 ** DO NOT MODIFY ANYTHING ABOVE THIS LINE
70 ********************************************************************************
71 ** Enter the includes for the ISR-code of the FreeRTOS drivers below.
73 ** You cannot use local variables. Alternatives are:
74 ** - Use static variables (Global RAM usage increases)
75 ** - Call a function (Additional cycles are needed)
76 ** - Use unused SFR's (preferred, no additional overhead)
77 ** See "../Serial/isrSerialTx.c" for an example of this last option
78 *******************************************************************************/
83 * Was the interrupt a byte being received?
85 #include "../Serial/isrSerialRx.c"
89 * Was the interrupt the Tx register becoming empty?
91 #include "../Serial/isrSerialTx.c"
95 /*******************************************************************************
96 ** DO NOT MODIFY ANYTHING BELOW THIS LINE
97 *******************************************************************************/
99 * Was a contextswitch requested by one of the
102 if ( uxSwitchRequested )
104 vTaskSwitchContext();
108 * Restore the context of the (possibly other) task.
110 portRESTORE_CONTEXT();
112 #pragma asmline retfie 0