Gymtrack / nRF51822_1

SG RFID nRF51822 fork

Fork of nRF51822 by Nordic Semiconductor

nordic/nrf-sdk/sd_common/app_util_platform.h@100:030804500597, 2015-04-01 (annotated)

Committer:
soumi_ghsoh
Date:
Wed Apr 01 22:06:35 2015 +0000
Revision:
100:030804500597
Parent:
65:98215c4f3a25 
TAG read with multiple instances of RX complete IRQ; Imp changes: reduced RX wait time, Vin=3V/AGC ON, RX_IN2(main) , RX_IN1(aux)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rohit Grover 37:c29c330d942c 1 /* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
Rohit Grover 37:c29c330d942c 2 *
Rohit Grover 37:c29c330d942c 3 * The information contained herein is property of Nordic Semiconductor ASA.
Rohit Grover 37:c29c330d942c 4 * Terms and conditions of usage are described in detail in NORDIC
Rohit Grover 37:c29c330d942c 5 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
Rohit Grover 37:c29c330d942c 6 *
Rohit Grover 37:c29c330d942c 7 * Licensees are granted free, non-transferable use of the information. NO
Rohit Grover 37:c29c330d942c 8 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
Rohit Grover 37:c29c330d942c 9 * the file.
Rohit Grover 37:c29c330d942c 10 *
Rohit Grover 37:c29c330d942c 11 */
Rohit Grover 37:c29c330d942c 12
Rohit Grover 37:c29c330d942c 13 /**@file
Rohit Grover 37:c29c330d942c 14 *
Rohit Grover 37:c29c330d942c 15 * @defgroup app_util_platform Utility Functions and Definitions (Platform)
Rohit Grover 37:c29c330d942c 16 * @{
Rohit Grover 37:c29c330d942c 17 * @ingroup app_common
Rohit Grover 37:c29c330d942c 18 *
Rohit Grover 37:c29c330d942c 19 * @brief Various types and definitions available to all applications when using SoftDevice.
Rohit Grover 37:c29c330d942c 20 */
Rohit Grover 37:c29c330d942c 21
Rohit Grover 37:c29c330d942c 22 #ifndef APP_UTIL_PLATFORM_H__
Rohit Grover 37:c29c330d942c 23 #define APP_UTIL_PLATFORM_H__
Rohit Grover 37:c29c330d942c 24
Rohit Grover 37:c29c330d942c 25 #include <stdint.h>
Rohit Grover 37:c29c330d942c 26 #include "compiler_abstraction.h"
Rohit Grover 37:c29c330d942c 27 #include "nrf51.h"
Rohit Grover 37:c29c330d942c 28 #include "app_error.h"
Rohit Grover 37:c29c330d942c 29
Rohit Grover 37:c29c330d942c 30 /**@brief The interrupt priorities available to the application while the SoftDevice is active. */
Rohit Grover 37:c29c330d942c 31 typedef enum
Rohit Grover 37:c29c330d942c 32 {
Rohit Grover 37:c29c330d942c 33 APP_IRQ_PRIORITY_HIGH = 1,
Rohit Grover 37:c29c330d942c 34 APP_IRQ_PRIORITY_LOW = 3
Rohit Grover 37:c29c330d942c 35 } app_irq_priority_t;
Rohit Grover 37:c29c330d942c 36
Rohit Grover 37:c29c330d942c 37 #define NRF_APP_PRIORITY_THREAD 4 /**< "Interrupt level" when running in Thread Mode. */
Rohit Grover 37:c29c330d942c 38
Rohit Grover 37:c29c330d942c 39 /**@cond NO_DOXYGEN */
Rohit Grover 37:c29c330d942c 40 #define EXTERNAL_INT_VECTOR_OFFSET 16
Rohit Grover 37:c29c330d942c 41 /**@endcond */
Rohit Grover 37:c29c330d942c 42
Rohit Grover 37:c29c330d942c 43 #define PACKED(TYPE) __packed TYPE
Rohit Grover 37:c29c330d942c 44
Rohit Grover 37:c29c330d942c 45 /**@brief Macro for entering a critical region.
Rohit Grover 37:c29c330d942c 46 *
Rohit Grover 37:c29c330d942c 47 * @note Due to implementation details, there must exist one and only one call to
Rohit Grover 37:c29c330d942c 48 * CRITICAL_REGION_EXIT() for each call to CRITICAL_REGION_ENTER(), and they must be located
Rohit Grover 37:c29c330d942c 49 * in the same scope.
Rohit Grover 37:c29c330d942c 50 */
Rohit Grover 37:c29c330d942c 51 #define CRITICAL_REGION_ENTER() \
Rohit Grover 37:c29c330d942c 52 { \
Rohit Grover 37:c29c330d942c 53 uint8_t IS_NESTED_CRITICAL_REGION = 0; \
Rohit Grover 37:c29c330d942c 54 uint32_t CURRENT_INT_PRI = current_int_priority_get(); \
Rohit Grover 37:c29c330d942c 55 if (CURRENT_INT_PRI != APP_IRQ_PRIORITY_HIGH) \
Rohit Grover 37:c29c330d942c 56 { \
Rohit Grover 37:c29c330d942c 57 uint32_t ERR_CODE = sd_nvic_critical_region_enter(&IS_NESTED_CRITICAL_REGION); \
Rohit Grover 37:c29c330d942c 58 if (ERR_CODE == NRF_ERROR_SOFTDEVICE_NOT_ENABLED) \
Rohit Grover 37:c29c330d942c 59 { \
Rohit Grover 37:c29c330d942c 60 __disable_irq(); \
Rohit Grover 37:c29c330d942c 61 } \
Rohit Grover 37:c29c330d942c 62 else \
Rohit Grover 37:c29c330d942c 63 { \
Rohit Grover 37:c29c330d942c 64 APP_ERROR_CHECK(ERR_CODE); \
Rohit Grover 37:c29c330d942c 65 } \
Rohit Grover 65:98215c4f3a25 66 }
Rohit Grover 65:98215c4f3a25 67
Rohit Grover 37:c29c330d942c 68 /**@brief Macro for leaving a critical region.
Rohit Grover 37:c29c330d942c 69 *
Rohit Grover 37:c29c330d942c 70 * @note Due to implementation details, there must exist one and only one call to
Rohit Grover 37:c29c330d942c 71 * CRITICAL_REGION_EXIT() for each call to CRITICAL_REGION_ENTER(), and they must be located
Rohit Grover 37:c29c330d942c 72 * in the same scope.
Rohit Grover 37:c29c330d942c 73 */
Rohit Grover 37:c29c330d942c 74 #define CRITICAL_REGION_EXIT() \
Rohit Grover 37:c29c330d942c 75 if (CURRENT_INT_PRI != APP_IRQ_PRIORITY_HIGH) \
Rohit Grover 37:c29c330d942c 76 { \
Rohit Grover 37:c29c330d942c 77 uint32_t ERR_CODE; \
Rohit Grover 37:c29c330d942c 78 __enable_irq(); \
Rohit Grover 37:c29c330d942c 79 ERR_CODE = sd_nvic_critical_region_exit(IS_NESTED_CRITICAL_REGION); \
Rohit Grover 37:c29c330d942c 80 if (ERR_CODE != NRF_ERROR_SOFTDEVICE_NOT_ENABLED) \
Rohit Grover 37:c29c330d942c 81 { \
Rohit Grover 37:c29c330d942c 82 APP_ERROR_CHECK(ERR_CODE); \
Rohit Grover 37:c29c330d942c 83 } \
Rohit Grover 37:c29c330d942c 84 } \
Rohit Grover 37:c29c330d942c 85 }
Rohit Grover 65:98215c4f3a25 86
Rohit Grover 37:c29c330d942c 87 /**@brief Function for finding the current interrupt level.
Rohit Grover 37:c29c330d942c 88 *
Rohit Grover 37:c29c330d942c 89 * @return Current interrupt level.
Rohit Grover 37:c29c330d942c 90 * @retval APP_IRQ_PRIORITY_HIGH We are running in Application High interrupt level.
Rohit Grover 37:c29c330d942c 91 * @retval APP_IRQ_PRIORITY_LOW We are running in Application Low interrupt level.
Rohit Grover 37:c29c330d942c 92 * @retval APP_IRQ_PRIORITY_THREAD We are running in Thread Mode.
Rohit Grover 37:c29c330d942c 93 */
Rohit Grover 37:c29c330d942c 94 static __INLINE uint8_t current_int_priority_get(void)
Rohit Grover 37:c29c330d942c 95 {
Rohit Grover 37:c29c330d942c 96 uint32_t isr_vector_num = (SCB->ICSR & SCB_ICSR_VECTACTIVE_Msk);
Rohit Grover 37:c29c330d942c 97 if (isr_vector_num > 0)
Rohit Grover 37:c29c330d942c 98 {
Rohit Grover 37:c29c330d942c 99 int32_t irq_type = ((int32_t)isr_vector_num - EXTERNAL_INT_VECTOR_OFFSET);
Rohit Grover 37:c29c330d942c 100 return (NVIC_GetPriority((IRQn_Type)irq_type) & 0xFF);
Rohit Grover 37:c29c330d942c 101 }
Rohit Grover 37:c29c330d942c 102 else
Rohit Grover 37:c29c330d942c 103 {
Rohit Grover 37:c29c330d942c 104 return NRF_APP_PRIORITY_THREAD;
Rohit Grover 37:c29c330d942c 105 }
Rohit Grover 37:c29c330d942c 106 }
Rohit Grover 37:c29c330d942c 107
Rohit Grover 37:c29c330d942c 108 #endif // APP_UTIL_PLATFORM_H__
Rohit Grover 37:c29c330d942c 109
Rohit Grover 37:c29c330d942c 110 /** @} */