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017994915c
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>
122 lines
4.2 KiB
Bash
122 lines
4.2 KiB
Bash
#!/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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