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unix: Implement BLE H4 HCI UART for btstack/nimble.

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This commit adds support for using Bluetooth on the unix port via a H4
serial interface (distinct from a USB dongle), with both BTstack and NimBLE
Bluetooth stacks.

Note that MICROPY_PY_BLUETOOTH is now disabled for the coverage variant.
Prior to this commit Bluetooth was anyway not being built on Travis because
libusb was not detected.  But now that bluetooth works in H4 mode it will
be built, and will lead to a large decrease in coverage because Bluetooth
tests cannot be run on Travis.
This commit is contained in:
Jim Mussared
2020-08-14 15:46:53 +10:00
committed by Damien George
parent feed69aa5c
commit 1b1b22905e
11 changed files with 485 additions and 9 deletions
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8
extmod/btstack/btstack.mk
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@@ -30,10 +30,18 @@ SRC_BTSTACK = \
$(addprefix lib/btstack/src/ble/, $(filter-out %_tlv.c, $(SRC_BLE_FILES))) \
lib/btstack/platform/embedded/btstack_run_loop_embedded.c
ifeq ($(MICROPY_BLUETOOTH_BTSTACK_USB),1)
ifeq ($(MICROPY_BLUETOOTH_BTSTACK_H4),1)
$(error Cannot specifiy both MICROPY_BLUETOOTH_BTSTACK_USB and MICROPY_BLUETOOTH_BTSTACK_H4)
endif
endif
ifeq ($(MICROPY_BLUETOOTH_BTSTACK_USB),1)
SRC_BTSTACK += \
lib/btstack/platform/libusb/hci_transport_h2_libusb.c
CFLAGS_MOD += -DMICROPY_BLUETOOTH_BTSTACK_USB=1
CFLAGS += $(shell pkg-config libusb-1.0 --cflags)
LDFLAGS += $(shell pkg-config libusb-1.0 --libs)
endif