初始版本

components/libraries/bootloader/dfu/nrf_dfu_mbr.c

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+/**
+ * Copyright (c) 2016 - 2020, 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_mbr.h"
+#include "nrf_mbr.h"
+#include "nrf_dfu_types.h"
+#include "nrf_log.h"
+#include "nrf_bootloader_info.h"
+
+#define MBR_IRQ_FORWARD_ADDRESS_ADDRESS (0x20000000) //!< The address of the variable that decides where the MBR forwards interrupts
+
+uint32_t nrf_dfu_mbr_copy_bl(uint32_t * p_src, uint32_t len)
+{
+    uint32_t ret_val;
+    uint32_t const len_words = len / sizeof(uint32_t);
+
+    sd_mbr_command_t command =
+    {
+        .command = SD_MBR_COMMAND_COPY_BL,
+        .params.copy_bl.bl_src = p_src,
+        .params.copy_bl.bl_len = len_words
+    };
+
+    ret_val = sd_mbr_command(&command);
+
+    return ret_val;
+}
+
+
+uint32_t nrf_dfu_mbr_init_sd(void)
+{
+    uint32_t ret_val;
+
+    sd_mbr_command_t command =
+    {
+        .command = SD_MBR_COMMAND_INIT_SD
+    };
+
+    ret_val = sd_mbr_command(&command);
+
+    return ret_val;
+}
+
+
+uint32_t nrf_dfu_mbr_irq_forward_address_set(void)
+{
+    uint32_t ret_val = NRF_ERROR_INVALID_PARAM;
+    uint32_t address = MBR_SIZE;
+
+#if !defined(BLE_STACK_SUPPORT_REQD) && !defined(ANT_STACK_SUPPORT_REQD)
+    sd_mbr_command_t command =
+    {
+        .command = SD_MBR_COMMAND_IRQ_FORWARD_ADDRESS_SET,
+        .params.irq_forward_address_set.address = address,
+    };
+
+    ret_val = sd_mbr_command(&command);
+#endif
+
+    if (ret_val == NRF_ERROR_INVALID_PARAM)
+    {
+        // Manually set the forward address if this MBR doesn't have the command.
+        *(uint32_t *)(MBR_IRQ_FORWARD_ADDRESS_ADDRESS) = address;
+
+        ret_val = NRF_SUCCESS;
+    }
+
+    return ret_val;
+}