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Raspberry Pi Bluetooth (Bookworm) / Raspberry Pi Bluetooth [arm64] (push) Successful in 11s
42 lines
1.6 KiB
Bash
42 lines
1.6 KiB
Bash
#!/usr/bin/env sh
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# For on-board BT, configure the BDADDR if necessary and route SCO packets
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# to the HCI interface (enables HFP/HSP)
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set -e
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if [ "$#" -ne '1' ]; then
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/usr/bin/echo "Usage: ${0} <bluetooth hci device>"
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exit 0
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fi
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DEV="${1}"
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# Need to bring hci up before looking at MAC as it can be all zeros during init
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/usr/bin/hciconfig "${DEV}" up
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if ! /usr/bin/hciconfig "${DEV}" | /usr/bin/grep --quiet 'Bus: UART'; then
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/usr/bin/echo 'Not a UART-attached BT Modem'
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exit 0
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fi
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if ( /usr/bin/hcitool -i "${DEV}" dev | /usr/bin/grep --extended-regexp --quiet '\s43:4[35]:|AA:AA:AA:AA:AA:AA' ); then
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SERIAL=$(< '/proc/device-tree/serial-number' /usr/bin/cut '-c9-')
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B1=$(/usr/bin/echo "${SERIAL}" | /usr/bin/cut '-c3-4')
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B2=$(/usr/bin/echo "${SERIAL}" | /usr/bin/cut '-c5-6')
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B3=$(/usr/bin/echo "${SERIAL}" | /usr/bin/cut '-c7-8')
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BDADDR=$(/usr/bin/printf '0x%02x 0x%02x 0x%02x 0xeb 0x27 0xb8' $((0x$B3 ^ 0xaa)) $((0x$B2 ^ 0xaa)) $((0x$B1 ^ 0xaa)))
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/usr/bin/hcitool -i "${DEV}" cmd 0x3f 0x001 "${BDADDR}"
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/usr/bin/hciconfig "${DEV}" reset
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else
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/usr/bin/echo 'Raspberry Pi BDADDR already set'
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fi
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# Route SCO packets to the HCI interface (enables HFP/HSP)
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/usr/bin/hcitool -i "${DEV}" cmd 0x3f 0x1c 0x01 0x02 0x00 0x01 0x01 > '/dev/null'
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# Force reinitialisation to allow extra features such as Secure Simple Pairing
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# to be enabled, for currently unknown reasons. This requires bluetoothd to be
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# running, which it isn't yet. Use this kludge of forking off another shell
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# with a delay, pending a complete understanding of the issues.
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(/usr/bin/sleep '5s'; /usr/bin/bluetoothctl power off; /usr/bin/bluetoothctl power on) &
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