move components to SDK dir

SDK/12.3.0_d7731ad/components/libraries/bootloader/dfu/nrf_dfu.c

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+/**
+ * Copyright (c) 2016 - 2017, Nordic Semiconductor ASA
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, must reproduce the above copyright notice, this list of
+ *    conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ * 
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+
+#include "nrf_dfu.h"
+#include "nrf_dfu_transport.h"
+#include "nrf_dfu_utils.h"
+#include "nrf_bootloader_app_start.h"
+#include "nrf_dfu_settings.h"
+#include "nrf_gpio.h"
+#include "app_scheduler.h"
+#include "app_timer_appsh.h"
+#include "nrf_log.h"
+#include "boards.h"
+#include "nrf_bootloader_info.h"
+#include "nrf_dfu_req_handler.h"
+
+#define SCHED_MAX_EVENT_DATA_SIZE       MAX(APP_TIMER_SCHED_EVT_SIZE, 0)                        /**< Maximum size of scheduler events. */
+
+#define SCHED_QUEUE_SIZE                20                                                      /**< Maximum number of events in the scheduler queue. */
+
+#define APP_TIMER_PRESCALER             0                                                       /**< Value of the RTC1 PRESCALER register. */
+#define APP_TIMER_OP_QUEUE_SIZE         4                                                       /**< Size of timer operation queues. */
+
+// Weak function implementation
+
+/** @brief Weak implemenation of nrf_dfu_check_enter.
+ *
+ * @note    This function must be overridden to enable entering DFU mode at will.
+ *          Default behaviour is to enter DFU when BOOTLOADER_BUTTON is pressed.
+ */
+__WEAK bool nrf_dfu_enter_check(void)
+{
+    if (nrf_gpio_pin_read(BOOTLOADER_BUTTON) == 0)
+    {
+        return true;
+    }
+
+    if (s_dfu_settings.enter_buttonless_dfu == 1)
+    {
+        s_dfu_settings.enter_buttonless_dfu = 0;
+        APP_ERROR_CHECK(nrf_dfu_settings_write(NULL));
+        return true;
+    }
+    return false;
+}
+
+
+// Internal Functions
+
+/**@brief Function for initializing the timer handler module (app_timer).
+ */
+static void timers_init(void)
+{
+    // Initialize timer module, making it use the scheduler.
+    APP_TIMER_APPSH_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, true);
+}
+
+
+/** @brief Function for event scheduler initialization.
+ */
+static void scheduler_init(void)
+{
+    APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE);
+}
+
+
+static void wait_for_event()
+{
+    // Transport is waiting for event?
+    while(true)
+    {
+        // Can't be emptied like this because of lack of static variables
+        app_sched_execute();
+    }
+}
+
+
+void nrf_dfu_wait()
+{
+    app_sched_execute();
+}
+
+
+uint32_t nrf_dfu_init()
+{
+    uint32_t ret_val = NRF_SUCCESS;
+    uint32_t enter_bootloader_mode = 0;
+
+    NRF_LOG_INFO("In real nrf_dfu_init\r\n");
+
+    nrf_dfu_settings_init();
+
+    // Continue ongoing DFU operations
+    // Note that this part does not rely on SoftDevice interaction
+    ret_val = nrf_dfu_continue(&enter_bootloader_mode);
+    if(ret_val != NRF_SUCCESS)
+    {
+        NRF_LOG_INFO("Could not continue DFU operation: 0x%08x\r\n");
+        enter_bootloader_mode = 1;
+    }
+
+    // Check if there is a reason to enter DFU mode
+    // besides the effect of the continuation
+    if (nrf_dfu_enter_check())
+    {
+        NRF_LOG_INFO("Application sent bootloader request\n");
+        enter_bootloader_mode = 1;
+    }
+
+    if(enter_bootloader_mode != 0 || !nrf_dfu_app_is_valid())
+    {
+        timers_init();
+        scheduler_init();
+
+        // Initializing transports
+        ret_val = nrf_dfu_transports_init();
+        if (ret_val != NRF_SUCCESS)
+        {
+            NRF_LOG_INFO("Could not initalize DFU transport: 0x%08x\r\n");
+            return ret_val;
+        }
+
+        (void)nrf_dfu_req_handler_init();
+
+        // This function will never return
+        NRF_LOG_INFO("Waiting for events\r\n");
+        wait_for_event();
+        NRF_LOG_INFO("After waiting for events\r\n");
+    }
+
+    if (nrf_dfu_app_is_valid())
+    {
+        NRF_LOG_INFO("Jumping to: 0x%08x\r\n", MAIN_APPLICATION_START_ADDR);
+        nrf_bootloader_app_start(MAIN_APPLICATION_START_ADDR);
+    }
+
+    // Should not be reached!
+    NRF_LOG_INFO("After real nrf_dfu_init\r\n");
+    return NRF_SUCCESS;
+}