From 8cad456ec8512945442257f98a32c4ec78998005 Mon Sep 17 00:00:00 2001
From: sago35 <sago35@gmail.com>
Date: Fri, 23 Jul 2021 16:36:45 +0900
Subject: [PATCH] WIP rtl8720dn

---
 adapter_rtl8720dn.go | 28 ++++++++++++++++++++++++++++
 gap_rtl8720dn.go     | 12 ++++++++++++
 gatts_rtl8720dn.go   | 17 +++++++++++++++++
 3 files changed, 57 insertions(+)
 create mode 100644 adapter_rtl8720dn.go
 create mode 100644 gap_rtl8720dn.go
 create mode 100644 gatts_rtl8720dn.go

diff --git a/adapter_rtl8720dn.go b/adapter_rtl8720dn.go
new file mode 100644
index 0000000..72f53df
--- /dev/null
+++ b/adapter_rtl8720dn.go
@@ -0,0 +1,28 @@
+// +build wioterminal
+
+package bluetooth
+
+// Adapter is a dummy adapter: it represents the connection to the (only)
+// SoftDevice on the chip.
+type Adapter struct {
+	isDefault         bool
+	scanning          bool
+	charWriteHandlers []charWriteHandler
+
+	connectHandler func(device Addresser, connected bool)
+}
+
+// DefaultAdapter is the default adapter on the current system. On Nordic chips,
+// it will return the SoftDevice interface.
+//
+// Make sure to call Enable() before using it to initialize the adapter.
+var DefaultAdapter = &Adapter{isDefault: true,
+	connectHandler: func(device Addresser, connected bool) {
+		return
+	}}
+
+// Enable configures the BLE stack. It must be called before any
+// Bluetooth-related calls (unless otherwise indicated).
+func (a *Adapter) Enable() error {
+	return nil
+}
diff --git a/gap_rtl8720dn.go b/gap_rtl8720dn.go
new file mode 100644
index 0000000..de1cf5c
--- /dev/null
+++ b/gap_rtl8720dn.go
@@ -0,0 +1,12 @@
+// +build wioterminal
+
+package bluetooth
+
+// Scan starts a BLE scan. It is stopped by a call to StopScan. A common pattern
+// is to cancel the scan when a particular device has been found.
+//
+// The callback is run on the same goroutine as the Scan function when using a
+// SoftDevice.
+func (a *Adapter) Scan(callback func(*Adapter, ScanResult)) error {
+	return nil
+}
diff --git a/gatts_rtl8720dn.go b/gatts_rtl8720dn.go
new file mode 100644
index 0000000..b7fa671
--- /dev/null
+++ b/gatts_rtl8720dn.go
@@ -0,0 +1,17 @@
+// +build wioterminal
+
+package bluetooth
+
+// Characteristic is a single characteristic in a service. It has an UUID and a
+// value.
+type Characteristic struct {
+	handle      uint16
+	permissions CharacteristicPermissions
+}
+
+// charWriteHandler contains a handler->callback mapping for characteristic
+// writes.
+type charWriteHandler struct {
+	handle   uint16
+	callback func(connection Connection, offset int, value []byte)
+}