Junichi Katsu / Mbed 2 deprecated BLE_MPU6050_test6_challenge_sb

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Dependencies:   mbed

nRF51822_wallbot/nordic/bootloader_dfu/dfu_app_handler.c@0:8468a4403fea, 2016-10-11 (annotated)

Committer:
jksoft
Date:
Tue Oct 11 11:09:42 2016 +0000
Revision:
0:8468a4403fea
SB??ver;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jksoft 0:8468a4403fea 1 /* Copyright (c) 2012 Nordic Semiconductor. All Rights Reserved.
jksoft 0:8468a4403fea 2 *
jksoft 0:8468a4403fea 3 * The information contained herein is property of Nordic Semiconductor ASA.
jksoft 0:8468a4403fea 4 * Terms and conditions of usage are described in detail in NORDIC
jksoft 0:8468a4403fea 5 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
jksoft 0:8468a4403fea 6 *
jksoft 0:8468a4403fea 7 * Licensees are granted free, non-transferable use of the information. NO
jksoft 0:8468a4403fea 8 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
jksoft 0:8468a4403fea 9 * the file.
jksoft 0:8468a4403fea 10 *
jksoft 0:8468a4403fea 11 */
jksoft 0:8468a4403fea 12
jksoft 0:8468a4403fea 13 #include "dfu_app_handler.h"
jksoft 0:8468a4403fea 14 #include "bootloader_util.h"
jksoft 0:8468a4403fea 15 #include "nrf_sdm.h"
jksoft 0:8468a4403fea 16 #include "app_error.h"
jksoft 0:8468a4403fea 17
jksoft 0:8468a4403fea 18 #define IRQ_ENABLED 0x01 /**< Field identifying if an interrupt is enabled. */
jksoft 0:8468a4403fea 19 #define MAX_NUMBER_INTERRUPTS 32 /**< Maximum number of interrupts available. */
jksoft 0:8468a4403fea 20
jksoft 0:8468a4403fea 21 static void dfu_app_reset_prepare(void); /**< Forward declare of default reset handler. */
jksoft 0:8468a4403fea 22 static dfu_app_reset_prepare_t m_reset_prepare = dfu_app_reset_prepare; /**< Callback function to application to prepare for system reset. Allows application to cleanup of service and memory prior to reset. */
jksoft 0:8468a4403fea 23
jksoft 0:8468a4403fea 24
jksoft 0:8468a4403fea 25 /**@brief Default reset prepare handler if application hasn't registered a handler.
jksoft 0:8468a4403fea 26 */
jksoft 0:8468a4403fea 27 static void dfu_app_reset_prepare(void)
jksoft 0:8468a4403fea 28 {
jksoft 0:8468a4403fea 29 // Reset prepare should be handled by application.
jksoft 0:8468a4403fea 30 // This function can be extended to include default handling if application does not implement
jksoft 0:8468a4403fea 31 // own handler.
jksoft 0:8468a4403fea 32 }
jksoft 0:8468a4403fea 33
jksoft 0:8468a4403fea 34
jksoft 0:8468a4403fea 35 /**@brief Function for disabling all interrupts before jumping from bootloader to application.
jksoft 0:8468a4403fea 36 */
jksoft 0:8468a4403fea 37 static void interrupts_disable(void)
jksoft 0:8468a4403fea 38 {
jksoft 0:8468a4403fea 39 uint32_t interrupt_setting_mask;
jksoft 0:8468a4403fea 40 uint32_t irq = 0; // We start from first interrupt, i.e. interrupt 0.
jksoft 0:8468a4403fea 41
jksoft 0:8468a4403fea 42 // Fetch the current interrupt settings.
jksoft 0:8468a4403fea 43 interrupt_setting_mask = NVIC->ISER[0];
jksoft 0:8468a4403fea 44
jksoft 0:8468a4403fea 45 for (; irq < MAX_NUMBER_INTERRUPTS; irq++)
jksoft 0:8468a4403fea 46 {
jksoft 0:8468a4403fea 47 if (interrupt_setting_mask & (IRQ_ENABLED << irq))
jksoft 0:8468a4403fea 48 {
jksoft 0:8468a4403fea 49 // The interrupt was enabled, and hence disable it.
jksoft 0:8468a4403fea 50 NVIC_DisableIRQ((IRQn_Type)irq);
jksoft 0:8468a4403fea 51 }
jksoft 0:8468a4403fea 52 }
jksoft 0:8468a4403fea 53 }
jksoft 0:8468a4403fea 54
jksoft 0:8468a4403fea 55
jksoft 0:8468a4403fea 56 /**@brief Function for preparing the reset, disabling SoftDevice and jump to the bootloader.
jksoft 0:8468a4403fea 57 */
jksoft 0:8468a4403fea 58 void bootloader_start(void)
jksoft 0:8468a4403fea 59 {
jksoft 0:8468a4403fea 60 m_reset_prepare();
jksoft 0:8468a4403fea 61
jksoft 0:8468a4403fea 62 uint32_t err_code = sd_power_gpregret_set(BOOTLOADER_DFU_START);
jksoft 0:8468a4403fea 63 APP_ERROR_CHECK(err_code);
jksoft 0:8468a4403fea 64
jksoft 0:8468a4403fea 65 err_code = sd_softdevice_disable();
jksoft 0:8468a4403fea 66 APP_ERROR_CHECK(err_code);
jksoft 0:8468a4403fea 67
jksoft 0:8468a4403fea 68 interrupts_disable();
jksoft 0:8468a4403fea 69
jksoft 0:8468a4403fea 70 err_code = sd_softdevice_vector_table_base_set(NRF_UICR->BOOTLOADERADDR);
jksoft 0:8468a4403fea 71 APP_ERROR_CHECK(err_code);
jksoft 0:8468a4403fea 72
jksoft 0:8468a4403fea 73 bootloader_util_app_start(NRF_UICR->BOOTLOADERADDR);
jksoft 0:8468a4403fea 74 }
jksoft 0:8468a4403fea 75
jksoft 0:8468a4403fea 76
jksoft 0:8468a4403fea 77
jksoft 0:8468a4403fea 78 void dfu_app_reset_prepare_set(dfu_app_reset_prepare_t reset_prepare_func)
jksoft 0:8468a4403fea 79 {
jksoft 0:8468a4403fea 80 m_reset_prepare = reset_prepare_func;
jksoft 0:8468a4403fea 81 }