soc: rtl87x2g: support silent-ota

boards/arm/rtl8762gn_evb/rtl8762gn_evb.dts

@@ -24,6 +24,7 @@
 };
 
 &flash {
+	reg = <0x4000000 DT_SIZE_K(1024)>;
 	partitions {
 		compatible = "fixed-partitions";
 		#address-cells = <1>;
@@ -58,7 +59,11 @@
 		};
 		app_partition: partition@2d000 {
 			label = "app-image";
-			reg = <0x2D000 DT_SIZE_K(828)>;
+			reg = <0x2D000 DT_SIZE_K(412)>;
+		};
+		ota_tmp_partition: partition@94000 {
+			label = "ota-tmp-image";
+			reg = <0x94000 DT_SIZE_K(416)>;
 		};
 		storage_partition: partition@fc000 {
 			label = "storage";
@@ -79,4 +84,8 @@
 	parity = "none";
 	stop-bits = "1";
 	data-bits = <8>;
+};
+
+&corewdt {
+	status = "okay";
 };

dts/arm/realtek/rtl87x2g.dtsi

@@ -81,7 +81,6 @@
 				compatible = "soc-nv-flash";
 				write-block-size = <1>;
 				erase-block-size = <4096>;
-				reg = <0x4000000 DT_SIZE_K(1024)>;
 			};
 		};
 

samples/bluetooth/rtk_ota_sample_dual_bank/CMakeLists.txt

@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(rtk_ota_sample_dual_bank)
+
+target_sources(app PRIVATE
+  src/main.c
+  src/cts.c
+)

samples/bluetooth/rtk_ota_sample_dual_bank/README.md

@@ -0,0 +1,17 @@
+### 工程编译
+
+该工程默认编译 `bank0 Image`。如果需要编译 `bank1 Image`，请将 `rtl8762gn_evb.overlay` 中的 `zephyr,code-partition` 修改为 `&app_partition_1`。
+
+### 脚本运行
+
+为了使得 Zephyr Image 能够兼容 Realtek 的 OTA 系统，在编译完后，请运行 `tools/run.bat`。该脚本会将生成的 `zephyr.bin` 加上 Realtek 的 MP header，并将sha256校验值、payload length 等写入 image header 中。
+
+最终将生成两版 image，分别是 `zephyrImage_MP.bin` 和 `zephyrImage.bin`（不带 MP header）。
+
+### 如何在蓝牙工程中打开RTK OTA？
+
+要开启OTA功能，需要在开启蓝牙的app中打开CONFIG_REALTEK_OTA。
+
+另外如果需要对Zephyr Image进行OTA升级，请拷贝本工程路径下的tools目录到您的应用程序路径下，并使用tools/run.bat脚本对原始Zephyr Image进行处理。
+
+OTA相关的source/header file放置在 `zephyr\soc\arm\realtek_bee\rtl87x2g\ota_src\` 目录下。

samples/bluetooth/rtk_ota_sample_dual_bank/boards/rtl8762gn_evb.overlay

@@ -0,0 +1,69 @@
+/ {
+	chosen {
+		zephyr,code-partition = &app_partition_0;
+	};
+};
+
+
+&flash {
+	reg = <0x4000000 DT_SIZE_K(1024)>;
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reserved: partition@0 {
+			label = "reserved-image";
+			reg = <0x0 DT_SIZE_K(4)>;
+		};
+		config_file: partition@1000 {
+			label = "config-file-image";
+			reg = <0x1000 DT_SIZE_K(4)>;
+		};
+		boot_patch_0: partition@2000 {
+			label = "boot-patch-0-image";
+			reg = <0x2000 DT_SIZE_K(32)>;
+		};
+		boot_patch_1: partition@a000 {
+			label = "boot-patch-1-image";
+			reg = <0xA000 DT_SIZE_K(32)>;
+		};
+         /* Bank 0 */
+		ota_header_0: partition@12000 {
+			label = "ota-header-0-image";
+			reg = <0x12000 DT_SIZE_K(4)>;
+		};
+		system_patch_0: partition@13000 {
+			label = "system-patch-0-image";
+			reg = <0x13000 DT_SIZE_K(32)>;
+		};
+		stack_patch_0: partition@1b000 {
+			label = "stack-patch-0-image";
+			reg = <0x1B000 DT_SIZE_K(72)>;
+		};
+		app_partition_0: partition@2d000 {
+			label = "app-image-0";
+			reg = <0x2D000 DT_SIZE_K(360)>;
+		};
+        /* Bank 1 */
+        ota_header_1: partition@87000 {
+			label = "ota-header-1-image";
+			reg = <0x87000 DT_SIZE_K(4)>;
+		};
+		system_patch_1: partition@88000 {
+			label = "system-patch-1-image";
+			reg = <0x88000 DT_SIZE_K(32)>;
+		};
+		stack_patch_1: partition@90000 {
+			label = "stack-patch-1-image";
+			reg = <0x90000 DT_SIZE_K(72)>;
+		};
+		app_partition_1: partition@a2000 {
+			label = "app-image-1";
+			reg = <0xA2000 DT_SIZE_K(360)>;
+		};
+		storage_partition: partition@fc000 {
+			label = "storage";
+			reg = <0xFC000 DT_SIZE_K(16)>;
+		};
+	};
+};

samples/bluetooth/rtk_ota_sample_dual_bank/prj.conf

@@ -0,0 +1,29 @@
+# Increased stack due to settings API usage
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
+
+CONFIG_BT=y
+CONFIG_LOG=y
+CONFIG_BT_SMP=y
+CONFIG_BT_SIGNING=y
+CONFIG_BT_PERIPHERAL=y
+CONFIG_BT_DIS=y
+CONFIG_BT_ATT_PREPARE_COUNT=5
+CONFIG_BT_BAS=y
+CONFIG_BT_HRS=y
+CONFIG_BT_IAS=y
+# CONFIG_BT_PRIVACY=y
+CONFIG_BT_DEVICE_NAME="Zephyr Peripheral Sample Long Name"
+CONFIG_BT_DEVICE_APPEARANCE=833
+CONFIG_BT_DEVICE_NAME_DYNAMIC=y
+CONFIG_BT_DEVICE_NAME_MAX=65
+
+CONFIG_BT_KEYS_OVERWRITE_OLDEST=y
+CONFIG_BT_SETTINGS=y
+CONFIG_FLASH=y
+CONFIG_FLASH_PAGE_LAYOUT=y
+CONFIG_FLASH_MAP=y
+CONFIG_NVS=y
+CONFIG_SETTINGS=y
+
+CONFIG_REALTEK_OTA=y
+CONFIG_LOG_BUFFER_SIZE=3072

samples/bluetooth/rtk_ota_sample_dual_bank/src/cts.c

@@ -0,0 +1,109 @@
+/** @file
+ *  @brief CTS Service sample
+ */
+
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/types.h>
+#include <stddef.h>
+#include <string.h>
+#include <errno.h>
+#include <zephyr/sys/printk.h>
+#include <zephyr/sys/byteorder.h>
+#include <zephyr/kernel.h>
+
+#include <zephyr/bluetooth/bluetooth.h>
+#include <zephyr/bluetooth/hci.h>
+#include <zephyr/bluetooth/conn.h>
+#include <zephyr/bluetooth/uuid.h>
+#include <zephyr/bluetooth/gatt.h>
+
+static uint8_t ct[10];
+static uint8_t ct_update;
+
+static void ct_ccc_cfg_changed(const struct bt_gatt_attr *attr, uint16_t value)
+{
+	/* TODO: Handle value */
+}
+
+static ssize_t read_ct(struct bt_conn *conn, const struct bt_gatt_attr *attr,
+		       void *buf, uint16_t len, uint16_t offset)
+{
+	const char *value = attr->user_data;
+
+	return bt_gatt_attr_read(conn, attr, buf, len, offset, value,
+				 sizeof(ct));
+}
+
+static ssize_t write_ct(struct bt_conn *conn, const struct bt_gatt_attr *attr,
+			const void *buf, uint16_t len, uint16_t offset,
+			uint8_t flags)
+{
+	uint8_t *value = attr->user_data;
+
+	if (offset + len > sizeof(ct)) {
+		return BT_GATT_ERR(BT_ATT_ERR_INVALID_OFFSET);
+	}
+
+	memcpy(value + offset, buf, len);
+	ct_update = 1U;
+
+	return len;
+}
+
+/* Current Time Service Declaration */
+BT_GATT_SERVICE_DEFINE(cts_cvs,
+	BT_GATT_PRIMARY_SERVICE(BT_UUID_CTS),
+	BT_GATT_CHARACTERISTIC(BT_UUID_CTS_CURRENT_TIME, BT_GATT_CHRC_READ |
+			       BT_GATT_CHRC_NOTIFY | BT_GATT_CHRC_WRITE,
+			       BT_GATT_PERM_READ | BT_GATT_PERM_WRITE,
+			       read_ct, write_ct, ct),
+	BT_GATT_CCC(ct_ccc_cfg_changed, BT_GATT_PERM_READ | BT_GATT_PERM_WRITE),
+);
+
+static void generate_current_time(uint8_t *buf)
+{
+	uint16_t year;
+
+	/* 'Exact Time 256' contains 'Day Date Time' which contains
+	 * 'Date Time' - characteristic contains fields for:
+	 * year, month, day, hours, minutes and seconds.
+	 */
+
+	year = sys_cpu_to_le16(2015);
+	memcpy(buf,  &year, 2); /* year */
+	buf[2] = 5U; /* months starting from 1 */
+	buf[3] = 30U; /* day */
+	buf[4] = 12U; /* hours */
+	buf[5] = 45U; /* minutes */
+	buf[6] = 30U; /* seconds */
+
+	/* 'Day of Week' part of 'Day Date Time' */
+	buf[7] = 1U; /* day of week starting from 1 */
+
+	/* 'Fractions 256 part of 'Exact Time 256' */
+	buf[8] = 0U;
+
+	/* Adjust reason */
+	buf[9] = 0U; /* No update, change, etc */
+}
+
+void cts_init(void)
+{
+	/* Simulate current time for Current Time Service */
+	generate_current_time(ct);
+}
+
+void cts_notify(void)
+{	/* Current Time Service updates only when time is changed */
+	if (!ct_update) {
+		return;
+	}
+
+	ct_update = 0U;
+	bt_gatt_notify(NULL, &cts_cvs.attrs[1], &ct, sizeof(ct));
+}

samples/bluetooth/rtk_ota_sample_dual_bank/src/cts.h

@@ -0,0 +1,20 @@
+/** @file
+ *  @brief CTS Service sample
+ */
+
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void cts_init(void);
+void cts_notify(void);
+
+#ifdef __cplusplus
+}
+#endif