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udev-rules-digi: Add udev rules for Digi International SOMs
This new package contains udev rules for the Digi International SOMs and SBCs. It initially contains only rules for the qca6564 Wi-Fi and BT and for the ccimx6ul SOM, but it will get extended to cover other interfaces and SOMs. Signed-off-by: Alex Gonzalez <alex.gonzalez@digi.com>
This commit is contained in:
Alex Gonzalez
Otavio Salvador
parent
c49b5a14b9
commit
017994915c
25
recipes-core/udev/udev-rules-digi.bb
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25
recipes-core/udev/udev-rules-digi.bb
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# Copyright (C) 2019 Digi International.
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DESCRIPTION = "udev rules for Digi International SOMs"
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LICENSE = "MIT"
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LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
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SRC_URI_ccimx6ul = " \
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file://81-qcom-wifi.rules \
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file://qca6564-init-wifi.sh \
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file://81-qcom-bt.rules \
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file://qca6564-attach.sh \
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"
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S = "${WORKDIR}"
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do_install_ccimx6ul () {
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install -d ${D}${sysconfdir}/udev/rules.d
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install -m 0644 ${WORKDIR}/81-qcom-wifi.rules ${D}${sysconfdir}/udev/rules.d/
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install -m 0644 ${WORKDIR}/81-qcom-bt.rules ${D}${sysconfdir}/udev/rules.d/
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install -d ${D}${sysconfdir}/udev/scripts/
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install -m 0755 ${WORKDIR}/qca6564-init-wifi.sh ${D}${sysconfdir}/udev/scripts/
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install -m 0755 ${WORKDIR}/qca6564-attach.sh ${D}${sysconfdir}/udev/scripts/
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}
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COMPATIBLE_MACHINE = "(ccimx6ul)"
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# Attach QCA6564 Bluetooth (uart)
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SUBSYSTEM=="tty", KERNEL=="ttymxc0", ACTION=="add", RUN="/etc/udev/scripts/qca6564-attach.sh start"
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# Load Qualcomm wireless module (sdio)
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SUBSYSTEM=="sdio", ACTION=="add", ENV{MODALIAS}=="sdio:c00v0271d050A", RUN="/etc/udev/scripts/qca6564-init-wifi.sh"
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97
recipes-core/udev/udev-rules-digi/ccimx6ul/qca6564-attach.sh
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97
recipes-core/udev/udev-rules-digi/ccimx6ul/qca6564-attach.sh
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#!/bin/sh
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#===============================================================================
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#
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# Copyright (C) 2019 by Digi International Inc.
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 as published by
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# the Free Software Foundation.
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#
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#
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# !Description: Initialize bluetooth hardware
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#
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#===============================================================================
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# Bluetooth power GPIO
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BT_EN_QCA_GPIO_NR="137"
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# set_gpio_value <gpio_nr> <value>
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set_gpio_value() {
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local SG_GPIONR="${1}"
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local SG_GPIOVAL="${2}"
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local SG_GPIOPATH="/sys/class/gpio/gpio${SG_GPIONR}"
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[ -d "${SG_GPIOPATH}" ] || printf "%s" "${SG_GPIONR}" > /sys/class/gpio/export
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printf out > "${SG_GPIOPATH}/direction" && sleep .2
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printf "${SG_GPIOVAL}" > "${SG_GPIOPATH}/value" && sleep .2
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[ -d "${SG_GPIOPATH}" ] && printf "%s" "${SG_GPIONR}" > /sys/class/gpio/unexport
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}
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# powercycle_gpio <gpio_nr>
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powercycle_gpio() {
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set_gpio_value "${1}" 0
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set_gpio_value "${1}" 1
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}
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set_mac_address() {
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# Get MAC address from the device tree. Use a default value if it has not been set.
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BT_MACADDR="$(hexdump -ve '1/1 "%02X" ":"' /proc/device-tree/bluetooth/mac-address 2>/dev/null | sed 's/:$//g')"
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if [ -z "${BT_MACADDR}" ] || [ "${BT_MACADDR}" = "00:00:00:00:00:00" ]; then
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BT_MACADDR="00:04:F3:FF:FF:BB"
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fi
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# Convert the BT address to the hcitool command format.
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# Example: "00:04:F3:11:22:33" coverted to "33 22 11 F3 04 00"
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HCI_BT_ADDR="$(echo ${BT_MACADDR} | sed -e 's,^\(..\):\(..\):\(..\):\(..\):\(..\):\(..\)$,\6 \5 \4 \3 \2 \1,g')"
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# Up the interface to be able to send hci commands
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hciconfig hci0 up || echo "Cannot bring up bluetooth interface after initial attach" || exit 1
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# Set the MAC address
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hcitool -i hci0 cmd 3F 000B 01 02 06 ${HCI_BT_ADDR} > /dev/null || echo "Unable to set BT MAC Address" || exit 1
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# Bring the interface down/up to apply the MAC change
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hciconfig hci0 down || echo "Cannot bring down bluetooth interface after setting MAC" || exit 1
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hciconfig hci0 up || echo "Cannot bring up bluetooth interface after setting MAC" || exit 1
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}
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bluetooth_init() {
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# Start the Bluetooth driver and bring up the interface
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killproc hciattach
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powercycle_gpio "${BT_EN_QCA_GPIO_NR}"
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hciattach ttymxc0 qualcomm 115200 -t3 flow unused > /dev/null 2>&1 || BT_ERROR="FAIL (hciattach)"
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set_mac_address || BT_ERROR="Unable to set MAC address"
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}
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# Source function library
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. /etc/init.d/functions
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case "$1" in
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start)
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if [ -d "/proc/device-tree/bluetooth" ]; then
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echo -n "Starting bluetooth hardware: "
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bluetooth_init
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echo "${BT_ERROR:-done.}"
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fi
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;;
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stop)
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if [ -d "/sys/class/bluetooth/hci0" ]; then
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echo -n "Stopping bluetooth hardware: "
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killproc hciattach
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# Power down bluetooth
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set_gpio_value "${BT_EN_QCA_GPIO_NR}" 0
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echo "done."
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fi
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;;
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restart)
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$0 stop
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sleep 1
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$0 start
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;;
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*)
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echo "Usage: $0 {start|stop|restart}"
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exit 1
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;;
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esac
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121
recipes-core/udev/udev-rules-digi/ccimx6ul/qca6564-init-wifi.sh
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121
recipes-core/udev/udev-rules-digi/ccimx6ul/qca6564-init-wifi.sh
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#!/bin/sh
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#
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# Copyright (c) 2019 Digi International Inc.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, you can obtain one at http://mozilla.org/MPL/2.0/.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# At this point of the boot (udev script), the system log (syslog) is not
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# available yet, so use the kernel log buffer from userspace.
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log() {
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printf "<$1>qca6564: $2\n" >/dev/kmsg
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}
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# Do nothing if the module is already loaded
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grep -qws 'wlan' /proc/modules && exit 0
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FIRMWARE_DIR="/lib/firmware"
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MACFILE="${FIRMWARE_DIR}/wlan/wlan_mac.bin"
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TMP_MACFILE="$(mktemp -t wlan_mac.XXXXXX)"
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# Read the MACs from DeviceTree. We can have up to four wireless interfaces
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# The only required one is wlan0 that is mapped with device tree mac address
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# without suffix.
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for index in $(seq 0 3); do
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MAC_ADDR="$(hexdump -ve '1/1 "%02X"' /proc/device-tree/wireless/mac-address${index%0} 2>/dev/null)"
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if [ "${index}" = "0" ] && { [ -z "${MAC_ADDR}" ] || [ "${MAC_ADDR}" = "00:00:00:00:00:00" ]; }; then
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# Set a default MAC for wlan0
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MAC_ADDR="0004F3FFFFFB"
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fi
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# Add the MAC address to the firmware file with the expected format
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echo "Intf${index}MacAddress=${MAC_ADDR}" >> ${TMP_MACFILE}
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done
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# Override the MAC firmware file only if the MAC file has changed.
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if ! cmp -s ${TMP_MACFILE} ${MACFILE}; then
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cp ${TMP_MACFILE} ${MACFILE}
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fi
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rm -f "${TMP_MACFILE}"
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OTP_REGION_CODE="$(cat /proc/device-tree/digi,hwid,cert 2>/dev/null | tr -d '\0')"
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DTB_REGION_CODE="$(cat /proc/device-tree/wireless/regulatory-domain 2>/dev/null | tr -d '\0')"
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US_CODE="0x0"
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WW_CODE="0x1"
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JP_CODE="0x2"
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# Check if the DTB_REGION_CODE is in the list of valid codes,
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# if not use the OTP programmed value.
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case "${DTB_REGION_CODE}" in
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${US_CODE} | ${WW_CODE} | ${JP_CODE})
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REGULATORY_DOMAIN="${DTB_REGION_CODE}";;
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*)
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if [ -n "${DTB_REGION_CODE}" ]; then
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log "5" "[WARN] Invalid region code in device tree, using OTP value"
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fi
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REGULATORY_DOMAIN="${OTP_REGION_CODE}";;
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esac
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# Create symbolic links to the proper FW files depending on the country region
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# Use a sub-shell here to change to firmware directory
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(
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cd "${FIRMWARE_DIR}"
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BDATA_SOURCE="bdwlan30_US.bin"
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case "${REGULATORY_DOMAIN}" in
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${US_CODE})
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log "5" "Setting US wireless region";;
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${WW_CODE}|${JP_CODE})
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if [ -f "bdwlan30_World.bin" ]; then
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log "5" "Setting WW (world wide) wireless region"
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BDATA_SOURCE="bdwlan30_World.bin"
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else
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log "5" "[WARN] No WW (worldwide) board data file, using US"
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fi
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;;
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"")
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log "5" "[WARN] region code not found, using US";;
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*)
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log "5" "[WARN] Invalid region code, using US";;
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esac
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# We don't want to rewrite NAND every time we boot so only
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# change the links if they are wrong.
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BDATA_LINK="bdwlan30.bin"
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UTFBDATA_LINK="utfbd30.bin"
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if [ ! -e "${BDATA_LINK}" ] || ! cmp -s "${BDATA_LINK}" "${BDATA_SOURCE}"; then
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ln -sf "${BDATA_SOURCE}" "${BDATA_LINK}"
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ln -sf "${BDATA_SOURCE}" "${UTFBDATA_LINK}"
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fi
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)
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# Load the wireless module with the params defined in modprobe.d/qca6564.conf
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# and reduce the console log level to avoid debug messages at boot time
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LOGLEVEL="$(sed -ne 's,^kernel.printk[^=]*=[[:blank:]]*\(.*\)$,\1,g;T;p' /etc/sysctl.conf 2>/dev/null)"
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[ -n "${LOGLEVEL}" ] && sysctl -q -w kernel.printk="${LOGLEVEL}"
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modprobe wlan
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# Verify the interface is present
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if [ -d "/sys/class/net/wlan0" ]; then
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# Create 'wlan1' virtual interface
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if [ -s "/proc/device-tree/wireless/mac-address1" ] &&
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[ -s "/proc/device-tree/wireless/mac-address2" ] &&
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[ -s "/proc/device-tree/wireless/mac-address3" ]; then
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:
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else
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echo "[WARN] Using default MAC addresses for virtual interfaces."
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fi
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iw dev wlan0 interface add wlan1 type __ap
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else
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log "3" "[ERROR] Loading qca6564 module"
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fi
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