2 * FreeRTOS Kernel V10.2.1
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3 * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software.
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 * http://www.FreeRTOS.org
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23 * http://aws.amazon.com/freertos
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25 * 1 tab == 4 spaces!
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28 #ifndef __SECURE_PORT_MACROS_H__
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29 #define __SECURE_PORT_MACROS_H__
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32 * @brief Byte alignment requirements.
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34 #define secureportBYTE_ALIGNMENT 8
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35 #define secureportBYTE_ALIGNMENT_MASK ( 0x0007 )
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38 * @brief Macro to declare a function as non-secure callable.
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40 #if defined( __IAR_SYSTEMS_ICC__ )
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41 #define secureportNON_SECURE_CALLABLE __cmse_nonsecure_entry __root
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43 #define secureportNON_SECURE_CALLABLE __attribute__((cmse_nonsecure_entry)) __attribute__((used))
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47 * @brief Set the secure PRIMASK value.
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49 #define secureportSET_SECURE_PRIMASK( ulPrimaskValue ) \
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50 __asm volatile ( "msr primask, %0" : : "r" ( ulPrimaskValue ) : "memory" )
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53 * @brief Set the non-secure PRIMASK value.
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55 #define secureportSET_NON_SECURE_PRIMASK( ulPrimaskValue ) \
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56 __asm volatile ( "msr primask_ns, %0" : : "r" ( ulPrimaskValue ) : "memory" )
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59 * @brief Read the PSP value in the given variable.
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61 #define secureportREAD_PSP( pucOutCurrentStackPointer ) \
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62 __asm volatile ( "mrs %0, psp" : "=r" ( pucOutCurrentStackPointer ) )
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65 * @brief Set the PSP to the given value.
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67 #define secureportSET_PSP( pucCurrentStackPointer ) \
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68 __asm volatile ( "msr psp, %0" : : "r" ( pucCurrentStackPointer ) )
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71 * @brief Set the PSPLIM to the given value.
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73 #define secureportSET_PSPLIM( pucStackLimit ) \
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74 __asm volatile ( "msr psplim, %0" : : "r" ( pucStackLimit ) )
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77 * @brief Set the NonSecure MSP to the given value.
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79 #define secureportSET_MSP_NS( pucMainStackPointer ) \
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80 __asm volatile ( "msr msp_ns, %0" : : "r" ( pucMainStackPointer ) )
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83 * @brief Set the CONTROL register to the given value.
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85 #define secureportSET_CONTROL( ulControl ) \
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86 __asm volatile ( "msr control, %0" : : "r" ( ulControl ) : "memory" )
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89 * @brief Read the Interrupt Program Status Register (IPSR) value in the given
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92 #define secureportREAD_IPSR( ulIPSR ) \
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93 __asm volatile ( "mrs %0, ipsr" : "=r" ( ulIPSR ) )
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96 * @brief PRIMASK value to enable interrupts.
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98 #define secureportPRIMASK_ENABLE_INTERRUPTS_VAL 0
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101 * @brief PRIMASK value to disable interrupts.
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103 #define secureportPRIMASK_DISABLE_INTERRUPTS_VAL 1
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106 * @brief Disable secure interrupts.
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108 #define secureportDISABLE_SECURE_INTERRUPTS() secureportSET_SECURE_PRIMASK( secureportPRIMASK_DISABLE_INTERRUPTS_VAL )
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111 * @brief Disable non-secure interrupts.
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113 * This effectively disables context switches.
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115 #define secureportDISABLE_NON_SECURE_INTERRUPTS() secureportSET_NON_SECURE_PRIMASK( secureportPRIMASK_DISABLE_INTERRUPTS_VAL )
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118 * @brief Enable non-secure interrupts.
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120 #define secureportENABLE_NON_SECURE_INTERRUPTS() secureportSET_NON_SECURE_PRIMASK( secureportPRIMASK_ENABLE_INTERRUPTS_VAL )
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123 * @brief Assert definition.
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125 #define secureportASSERT( x ) \
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128 secureportDISABLE_SECURE_INTERRUPTS(); \
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129 secureportDISABLE_NON_SECURE_INTERRUPTS(); \
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133 #endif /* __SECURE_PORT_MACROS_H__ */
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