122 lines
3.9 KiB
Python
122 lines
3.9 KiB
Python
# Test BLE GAP device name get/set
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from micropython import const
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import time, machine, bluetooth
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TIMEOUT_MS = 5000
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_IRQ_CENTRAL_CONNECT = const(1)
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_IRQ_CENTRAL_DISCONNECT = const(2)
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_IRQ_PERIPHERAL_CONNECT = const(7)
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_IRQ_PERIPHERAL_DISCONNECT = const(8)
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_IRQ_GATTC_CHARACTERISTIC_RESULT = const(11)
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_IRQ_GATTC_CHARACTERISTIC_DONE = const(12)
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_IRQ_GATTC_READ_RESULT = const(15)
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_IRQ_GATTC_READ_DONE = const(16)
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GAP_DEVICE_NAME_UUID = bluetooth.UUID(0x2A00)
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waiting_events = {}
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def irq(event, data):
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if event == _IRQ_CENTRAL_CONNECT:
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print("_IRQ_CENTRAL_CONNECT")
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waiting_events[event] = data[0]
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elif event == _IRQ_CENTRAL_DISCONNECT:
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print("_IRQ_CENTRAL_DISCONNECT")
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elif event == _IRQ_PERIPHERAL_CONNECT:
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print("_IRQ_PERIPHERAL_CONNECT")
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waiting_events[event] = data[0]
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elif event == _IRQ_PERIPHERAL_DISCONNECT:
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print("_IRQ_PERIPHERAL_DISCONNECT")
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elif event == _IRQ_GATTC_CHARACTERISTIC_RESULT:
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if data[-1] == GAP_DEVICE_NAME_UUID:
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print("_IRQ_GATTC_CHARACTERISTIC_RESULT", data[-1])
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waiting_events[event] = data[2]
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else:
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return
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elif event == _IRQ_GATTC_CHARACTERISTIC_DONE:
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print("_IRQ_GATTC_CHARACTERISTIC_DONE")
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elif event == _IRQ_GATTC_READ_RESULT:
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print("_IRQ_GATTC_READ_RESULT", bytes(data[-1]))
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if event not in waiting_events:
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waiting_events[event] = None
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def wait_for_event(event, timeout_ms):
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t0 = time.ticks_ms()
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while time.ticks_diff(time.ticks_ms(), t0) < timeout_ms:
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if event in waiting_events:
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return waiting_events.pop(event)
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machine.idle()
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raise ValueError("Timeout waiting for {}".format(event))
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# Acting in peripheral role.
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def instance0():
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multitest.globals(BDADDR=ble.config("mac"))
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# Test setting and getting the GAP device name before registering services.
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ble.config(gap_name="GAP_NAME")
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print(ble.config("gap_name"))
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# Create an empty service and start advertising.
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ble.gatts_register_services([])
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print("gap_advertise")
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multitest.next()
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try:
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# Do multiple iterations to test changing the name.
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for iteration in range(2):
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# Set the GAP device name and start advertising.
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ble.config(gap_name="GAP_NAME{}".format(iteration))
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print(ble.config("gap_name"))
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ble.gap_advertise(20_000)
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# Wait for central to connect, then wait for it to disconnect.
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wait_for_event(_IRQ_CENTRAL_CONNECT, TIMEOUT_MS)
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wait_for_event(_IRQ_CENTRAL_DISCONNECT, 4 * TIMEOUT_MS)
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finally:
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ble.active(0)
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# Acting in central role.
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def instance1():
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multitest.next()
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try:
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value_handle = None
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for iteration in range(2):
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# Wait for peripheral to start advertising.
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time.sleep_ms(500)
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# Connect to peripheral.
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print("gap_connect")
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ble.gap_connect(*BDADDR)
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conn_handle = wait_for_event(_IRQ_PERIPHERAL_CONNECT, TIMEOUT_MS)
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if iteration == 0:
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# Only do characteristic discovery on the first iteration,
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# assume value_handle is unchanged on the second.
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print("gattc_discover_characteristics")
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ble.gattc_discover_characteristics(conn_handle, 1, 65535)
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value_handle = wait_for_event(_IRQ_GATTC_CHARACTERISTIC_RESULT, TIMEOUT_MS)
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wait_for_event(_IRQ_GATTC_CHARACTERISTIC_DONE, TIMEOUT_MS)
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# Read the peripheral's GAP device name.
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print("gattc_read")
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ble.gattc_read(conn_handle, value_handle)
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wait_for_event(_IRQ_GATTC_READ_RESULT, TIMEOUT_MS)
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# Disconnect from peripheral.
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print("gap_disconnect:", ble.gap_disconnect(conn_handle))
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wait_for_event(_IRQ_PERIPHERAL_DISCONNECT, TIMEOUT_MS)
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finally:
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ble.active(0)
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ble = bluetooth.BLE()
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ble.active(1)
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ble.irq(irq)
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