mirror of
https://github.com/Telecominfraproject/wlan-ap.git
synced 2025-10-30 18:07:52 +00:00
6462efd6bc
This adds support for executing a host side support script per firmware type (in our case, full MCU firmware name is a combination of two terms: 'version__type', e.g. 'zephyr-v3.3.x__hci_uart') which currently runs on the MCU. Additionally, support for calling the init script with 'stop' argument is included. The host side support scripts will be placed in '/etc/mcu.d/' and should have executable flag set and be named after the firmware type, with 'sh' extension (e.g. 'hci_uart.sh'). This solution assumes also that PID of a running, related service will be stored in '/var/run/mcu.SN.pid' where 'SN' is the associated MCU serial number. Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
137 lines
3.0 KiB
Bash
137 lines
3.0 KiB
Bash
#!/bin/sh
|
|
|
|
. /lib/functions.sh
|
|
. /lib/functions/mcu.sh
|
|
|
|
MCU_SCRIPT_NAME="mcu-hotplug"
|
|
MCU_CFG_FOUND="0"
|
|
|
|
mcu_hotplug_setup() {
|
|
local sn
|
|
local fw_type
|
|
local disabled
|
|
|
|
local sn_dev="$2"
|
|
local uart="$3"
|
|
|
|
SECT="$1"
|
|
|
|
MCU_SYSINFO_OUTPUT=""
|
|
MCU_IMGLIST_OUTPUT=""
|
|
|
|
[ "$MCU_CFG_FOUND" = "1" ] && return 0
|
|
|
|
config_get sn "$SECT" sn
|
|
[ "$sn" != "$sn_dev" ] && return 0
|
|
|
|
MCU_SCRIPT_NAME="mcu-hotplug.${SECT}"
|
|
MCU_CFG_FOUND="1"
|
|
|
|
mcu_logi "found matching config section '$SECT'"
|
|
|
|
# Section disabled?
|
|
config_get_bool disabled "$SECT" disabled "0"
|
|
[ "$disabled" = "1" ] && {
|
|
mcu_logw "section is disabled in config"
|
|
return 0
|
|
}
|
|
|
|
# Stop related service
|
|
[ -f "/var/run/mcu.${sn}.pid" ] && {
|
|
kill "$(cat "/var/run/mcu.${sn}.pid" 2>/dev/null)" \
|
|
> /dev/null 2>&1
|
|
rm -f "/var/run/mcu.${sn}.pid" > /dev/null 2>&1
|
|
}
|
|
|
|
mcu_sn_check_and_update "$sn" "$uart"
|
|
[ $? -ne 0 ] && return 1
|
|
|
|
mcu_fw_check_and_update "$uart"
|
|
[ $? -ne 0 ] && return 1
|
|
|
|
fw_type="$(uci -q get "mcu.${SECT}.firmware" | awk -F '__' '{print $2}')"
|
|
[ -n "$fw_type" ] || return 0
|
|
|
|
[ -x "${MCU_HS_DIR}/${fw_type}.sh" ] && \
|
|
"${MCU_HS_DIR}/${fw_type}.sh" "$SECT"
|
|
}
|
|
|
|
# We are looking for ttyACM with specific product name and USB VID:PID
|
|
[ "$ACTION" = "add" -a \
|
|
"$DRIVER" = "cdc_acm" -a \
|
|
"$DEVTYPE" = "usb_interface" ] && {
|
|
|
|
usb_path="/sys/bus/usb/devices/"
|
|
dev="$(echo "$DEVICENAME" | cut -d ':' -f 1)"
|
|
[ -n "$dev" ] || return 1
|
|
|
|
p="$(cat "${usb_path}/${dev}/product" 2>/dev/null)"
|
|
id="$(cat "${usb_path}/${dev}/idVendor" 2>/dev/null)"
|
|
id="${id}$(cat "${usb_path}//${dev}/idProduct" 2>/dev/null)"
|
|
sn="$(cat "${usb_path}/${dev}/serial" 2>/dev/null)"
|
|
|
|
[ "$p" = "$MCUBOOT_USB_PRODUCT" -a \
|
|
"$id" = "$MCUBOOT_USB_VID_PID" ] || return 0
|
|
|
|
mcu_logi "found compatible MCU with S/N '$sn' at USB bus '$dev'"
|
|
|
|
# We expect just a single ttyACM interface
|
|
usb_path="/sys/bus/usb/devices/${dev}*/tty/*"
|
|
for tty in $usb_path; do
|
|
[ -c "/dev/$(basename "$tty")" ] && {
|
|
uart_path="/dev/$(basename "$tty")"
|
|
break
|
|
}
|
|
done
|
|
|
|
[ -n "$uart_path" ] || {
|
|
mcu_loge "failed to find ttyACM interface"
|
|
return 1
|
|
}
|
|
|
|
# Try to acquire lock (init script might be handling this device)
|
|
exec 9>"$MCU_FLOCK_FILE" || return 1
|
|
flock -n 9 || {
|
|
mcu_logd "lock taken by init script, skipping"
|
|
return 1
|
|
}
|
|
|
|
config_load mcu
|
|
config_foreach mcu_hotplug_setup mcu "$sn" "$uart_path"
|
|
|
|
# Add new config section for this MCU if no matching found (by S/N)
|
|
[ "$MCU_CFG_FOUND" = "0" ] && {
|
|
MCU_SCRIPT_NAME="mcu-hotplug"
|
|
|
|
sect="${sn:0:8}_usb"
|
|
mcu_logi "no matching MCU config found, adding new (disabled): '$sect'"
|
|
|
|
[ -d /etc/config-shadow ] && {
|
|
uci -c /etc/config-shadow -q batch <<-EOF
|
|
set mcu.${sect}=mcu
|
|
set mcu.${sect}.interface=usb
|
|
set mcu.${sect}.bootloader=mcuboot
|
|
set mcu.${sect}.sn=$sn
|
|
set mcu.${sect}.disabled=1
|
|
EOF
|
|
|
|
uci -c /etc/config-shadow -q commit mcu
|
|
}
|
|
|
|
uci -q batch <<-EOF
|
|
set mcu.${sect}=mcu
|
|
set mcu.${sect}.interface=usb
|
|
set mcu.${sect}.bootloader=mcuboot
|
|
set mcu.${sect}.sn=$sn
|
|
set mcu.${sect}.disabled=1
|
|
EOF
|
|
|
|
uci -q commit mcu
|
|
|
|
flock -u 9
|
|
return 0
|
|
}
|
|
|
|
flock -u 9
|
|
}
|