begriffs open source - freertos/blob - portable/GCC/ARM

1 /*

2 * FreeRTOS SMP Kernel V202110.00

4 *

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:

11 *

12 * The above copyright notice and this permission notice shall be included in all

13 * copies or substantial portions of the Software.

14 *

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.

21 *

22 * https://www.FreeRTOS.org

23 * https://github.com/FreeRTOS

24 *

25 * 1 tab == 4 spaces!

26 */

27

28

29 #ifndef PORTMACRO_H

30 #define PORTMACRO_H

31

32 #ifdef __cplusplus

33 extern "C" {

34 #endif

35

36 /*-----------------------------------------------------------

37 * Port specific definitions.

38 *

39 * The settings in this file configure FreeRTOS correctly for the

40 * given hardware and compiler.

41 *

42 * These settings should not be altered.

43 *-----------------------------------------------------------

44 */

45

46 /* Type definitions. */

47 #define portCHAR char

48 #define portFLOAT float

49 #define portDOUBLE double

50 #define portLONG long

51 #define portSHORT short

52 #define portSTACK_TYPE uint32_t

53 #define portBASE_TYPE long

54

55 typedef portSTACK_TYPE StackType_t;

56 typedef long BaseType_t;

57 typedef unsigned long UBaseType_t;

58

59 #if ( configUSE_16_BIT_TICKS == 1 )

60 typedef uint16_t TickType_t;

61 #define portMAX_DELAY ( TickType_t ) 0xffff

62 #else

63 typedef uint32_t TickType_t;

64 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL

65

66 /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do

67 * not need to be guarded with a critical section. */

68 #define portTICK_TYPE_IS_ATOMIC 1

69 #endif

70 /*-----------------------------------------------------------*/

71

72 /* Architecture specifics. */

73 #define portSTACK_GROWTH ( -1 )

74 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )

75 #define portBYTE_ALIGNMENT 8

76 #define portDONT_DISCARD __attribute__( ( used ) )

77 /*-----------------------------------------------------------*/

78

79

80 /* Scheduler utilities. */

81 extern void vPortYield( void );

82 #define portNVIC_INT_CTRL_REG ( *( ( volatile uint32_t * ) 0xe000ed04 ) )

83 #define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )

84 #define portYIELD() vPortYield()

85 #define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT

86 #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )

87 /*-----------------------------------------------------------*/

88

89

90 /* Critical section management. */

91 extern void vPortEnterCritical( void );

92 extern void vPortExitCritical( void );

93 extern uint32_t ulSetInterruptMaskFromISR( void ) __attribute__( ( naked ) );

94 extern void vClearInterruptMaskFromISR( uint32_t ulMask ) __attribute__( ( naked ) );

95

96 #define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMaskFromISR()

97 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( x ) vClearInterruptMaskFromISR( x )

98 #define portDISABLE_INTERRUPTS() __asm volatile ( " cpsid i " ::: "memory" )

99 #define portENABLE_INTERRUPTS() __asm volatile ( " cpsie i " ::: "memory" )

100 #define portENTER_CRITICAL() vPortEnterCritical()

101 #define portEXIT_CRITICAL() vPortExitCritical()

102

103 /*-----------------------------------------------------------*/

104

105 /* Tickless idle/low power functionality. */

106 #ifndef portSUPPRESS_TICKS_AND_SLEEP

107 extern void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime );

108 #define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime ) vPortSuppressTicksAndSleep( xExpectedIdleTime )

109 #endif

110 /*-----------------------------------------------------------*/

111

112 /* Task function macros as described on the FreeRTOS.org WEB site. */

113 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )

114 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )

115

116 #define portNOP()

117

118 #define portMEMORY_BARRIER() __asm volatile ( "" ::: "memory" )

119

120 #ifdef __cplusplus

121 }

122 #endif

123

124 #endif /* PORTMACRO_H */