tests/multi_bluetooth: Add initial tests for bluetooth BLE.

1 files changed, 168 insertions, 0 deletions

diff --git a/tests/multi_bluetooth/ble_gatt_data_transfer.py b/tests/multi_bluetooth/ble_gatt_data_transfer.py
new file mode 100644
index 000000000..c1e38a3d8
--- /dev/null
+++ b/tests/multi_bluetooth/ble_gatt_data_transfer.py
@@ -0,0 +1,168 @@
+# Test GATTC/S data transfer between peripheral and central, and use of gatts_set_buffer()
+
+from micropython import const
+import time, machine, bluetooth
+
+TIMEOUT_MS = 5000
+
+_IRQ_CENTRAL_CONNECT = const(1 << 0)
+_IRQ_CENTRAL_DISCONNECT = const(1 << 1)
+_IRQ_GATTS_WRITE = const(1 << 2)
+_IRQ_PERIPHERAL_CONNECT = const(1 << 6)
+_IRQ_PERIPHERAL_DISCONNECT = const(1 << 7)
+_IRQ_GATTC_SERVICE_RESULT = const(1 << 8)
+_IRQ_GATTC_CHARACTERISTIC_RESULT = const(1 << 9)
+_IRQ_GATTC_READ_RESULT = const(1 << 11)
+_IRQ_GATTC_WRITE_STATUS = const(1 << 12)
+_IRQ_GATTC_NOTIFY = const(1 << 13)
+
+FLAG_WRITE_NO_RESPONSE = const(1 << 2)
+
+SERVICE_UUID = bluetooth.UUID("00000001-1111-2222-3333-444444444444")
+CHAR_CTRL_UUID = bluetooth.UUID("00000002-1111-2222-3333-444444444444")
+CHAR_RX_UUID = bluetooth.UUID("00000003-1111-2222-3333-444444444444")
+CHAR_TX_UUID = bluetooth.UUID("00000004-1111-2222-3333-444444444444")
+CHAR_CTRL = (CHAR_CTRL_UUID, bluetooth.FLAG_WRITE | bluetooth.FLAG_NOTIFY)
+CHAR_RX = (CHAR_RX_UUID, bluetooth.FLAG_WRITE | FLAG_WRITE_NO_RESPONSE)
+CHAR_TX = (CHAR_TX_UUID, bluetooth.FLAG_NOTIFY)
+SERVICE = (SERVICE_UUID, (CHAR_CTRL, CHAR_RX, CHAR_TX))
+SERVICES = (SERVICE,)
+
+last_event = None
+last_data = None
+ctrl_value_handle = 0
+rx_value_handle = 0
+tx_value_handle = 0
+
+
+def irq(event, data):
+    global last_event, last_data, ctrl_value_handle, rx_value_handle, tx_value_handle
+    last_event = event
+    last_data = data
+    if event == _IRQ_CENTRAL_CONNECT:
+        print("_IRQ_CENTRAL_CONNECT")
+    elif event == _IRQ_CENTRAL_DISCONNECT:
+        print("_IRQ_CENTRAL_DISCONNECT")
+    elif event == _IRQ_GATTS_WRITE:
+        print("_IRQ_GATTS_WRITE")
+    elif event == _IRQ_PERIPHERAL_CONNECT:
+        print("_IRQ_PERIPHERAL_CONNECT")
+    elif event == _IRQ_PERIPHERAL_DISCONNECT:
+        print("_IRQ_PERIPHERAL_DISCONNECT")
+    elif event == _IRQ_GATTC_CHARACTERISTIC_RESULT:
+        if data[-1] == CHAR_CTRL_UUID:
+            print("_IRQ_GATTC_SERVICE_RESULT", data[-1])
+            ctrl_value_handle = data[2]
+        elif data[-1] == CHAR_RX_UUID:
+            print("_IRQ_GATTC_SERVICE_RESULT", data[-1])
+            rx_value_handle = data[2]
+        elif data[-1] == CHAR_TX_UUID:
+            print("_IRQ_GATTC_SERVICE_RESULT", data[-1])
+            tx_value_handle = data[2]
+    elif event == _IRQ_GATTC_READ_RESULT:
+        print("_IRQ_GATTC_READ_RESULT", data[-1])
+    elif event == _IRQ_GATTC_WRITE_STATUS:
+        print("_IRQ_GATTC_WRITE_STATUS", data[-1])
+    elif event == _IRQ_GATTC_NOTIFY:
+        print("_IRQ_GATTC_NOTIFY", data[-1])
+
+
+def wait_for_event(event, timeout_ms):
+    t0 = time.ticks_ms()
+    while time.ticks_diff(time.ticks_ms(), t0) < timeout_ms:
+        if isinstance(event, int):
+            if last_event == event:
+                break
+        elif event():
+            break
+        machine.idle()
+
+
+# Acting in peripheral role.
+def instance0():
+    multitest.globals(BDADDR=ble.config("mac"))
+    ((char_ctrl_handle, char_rx_handle, char_tx_handle),) = ble.gatts_register_services(SERVICES)
+
+    # Increase the size of the rx buffer and enable append mode.
+    ble.gatts_set_buffer(char_rx_handle, 100, True)
+
+    print("gap_advertise")
+    ble.gap_advertise(20_000, b"\x02\x01\x06\x04\xffMPY")
+    multitest.next()
+    try:
+        # Wait for central to connect to us.
+        wait_for_event(_IRQ_CENTRAL_CONNECT, TIMEOUT_MS)
+        if last_event != _IRQ_CENTRAL_CONNECT:
+            return
+        conn_handle, _, _ = last_data
+
+        # Wait for the central to signal that it's done with its part of the test.
+        wait_for_event(
+            lambda: last_event == _IRQ_GATTS_WRITE and last_data[1] == char_ctrl_handle,
+            2 * TIMEOUT_MS,
+        )
+
+        # Read all accumulated data from the central.
+        print("gatts_read:", ble.gatts_read(char_rx_handle))
+
+        # Notify the central a few times.
+        for i in range(4):
+            time.sleep_ms(300)
+            ble.gatts_notify(conn_handle, char_tx_handle, "message{}".format(i))
+
+        # Notify the central that we are done with our part of the test.
+        time.sleep_ms(300)
+        ble.gatts_notify(conn_handle, char_ctrl_handle, "OK")
+
+        # Wait for the central to disconnect.
+        wait_for_event(_IRQ_CENTRAL_DISCONNECT, TIMEOUT_MS)
+    finally:
+        ble.active(0)
+
+
+# Acting in central role.
+def instance1():
+    multitest.next()
+    try:
+        # Connect to peripheral and then disconnect.
+        print("gap_connect")
+        ble.gap_connect(0, BDADDR)
+        wait_for_event(_IRQ_PERIPHERAL_CONNECT, TIMEOUT_MS)
+        if last_event != _IRQ_PERIPHERAL_CONNECT:
+            return
+        conn_handle, _, _ = last_data
+
+        # Discover characteristics.
+        ble.gattc_discover_characteristics(conn_handle, 1, 65535)
+        wait_for_event(
+            lambda: ctrl_value_handle and rx_value_handle and tx_value_handle, TIMEOUT_MS
+        )
+
+        # Write to the characteristic a few times, with and without response.
+        for i in range(4):
+            print("gattc_write")
+            ble.gattc_write(conn_handle, rx_value_handle, "central{}".format(i), i & 1)
+            if i & 1:
+                wait_for_event(_IRQ_GATTC_WRITE_STATUS, TIMEOUT_MS)
+            time.sleep_ms(400)
+
+        # Write to say that we are done with our part of the test.
+        ble.gattc_write(conn_handle, ctrl_value_handle, "OK", 1)
+        wait_for_event(_IRQ_GATTC_WRITE_STATUS, TIMEOUT_MS)
+
+        # Wait for notification that peripheral is done with its part of the test.
+        wait_for_event(
+            lambda: last_event == _IRQ_GATTC_NOTIFY and last_data[1] == ctrl_value_handle,
+            TIMEOUT_MS,
+        )
+
+        # Disconnect from peripheral.
+        print("gap_disconnect:", ble.gap_disconnect(conn_handle))
+        wait_for_event(_IRQ_PERIPHERAL_DISCONNECT, TIMEOUT_MS)
+    finally:
+        ble.active(0)
+
+
+ble = bluetooth.BLE()
+ble.active(1)
+ble.irq(irq)