Add sim-config and reorder modem related scripts
BugzID: 56371
This commit is contained in:
Alexandre Bard
parent
c3135842b5
commit
d146532b31
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@ -1,6 +1,6 @@
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[Unit]
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Before=ModemManager.service
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After=ublox-config.service
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After=sim-config.service
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[Service]
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Type=oneshot
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@ -0,0 +1,109 @@
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#!/usr/bin/env python3
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import serial
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import os
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import time
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import configparser
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import sys
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CONFIG = '/etc/sim.conf'
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SERIAL_DEV = '/dev/ttyACM0'
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GPIO_PATH = '/sys/class/gpio/'
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GPIO_SIM_SW = '44'
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GPIO_SIM_RST = '57'
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RST_FILE = '/tmp/modem-reset-required'
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rst = False
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def write_to_file(file, value):
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f = open(file, 'w')
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f.write(value)
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f.close()
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def reset_modem():
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print("modem reset")
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write_to_file(GPIO_PATH + 'export', GPIO_SIM_RST)
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write_to_file(GPIO_PATH + 'gpio' + GPIO_SIM_RST + '/direction', 'out')
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write_to_file(GPIO_PATH + 'gpio' + GPIO_SIM_RST + '/value', '1')
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time.sleep(2)
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write_to_file(GPIO_PATH + 'gpio' + GPIO_SIM_RST + '/value', '0')
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print("reset done")
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# Wait until modem rebooted
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while True:
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dirs = os.listdir("/dev")
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for file in dirs:
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if file == 'ttyACM2':
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sys.exit(0);
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time.sleep(1)
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def is_rst_required():
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global rst
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if rst:
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return True
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elif os.path.exists(RST_FILE):
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return True
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else:
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return False
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def switch_sim():
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global rst
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write_to_file(GPIO_PATH + 'export', GPIO_SIM_SW)
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write_to_file(GPIO_PATH + 'gpio' + GPIO_SIM_SW + '/direction', 'out')
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write_to_file(GPIO_PATH + 'gpio' + GPIO_SIM_SW + '/value', '0')
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rst = True
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def sim_present(ser):
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cmd = b'AT+CCID?'
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while True:
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try:
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ser.flushInput()
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ser.write(cmd)
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ser.write(b'\r')
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s = ser.read_until(b'OK')
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if b'ERROR' in s:
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return False
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elif b'OK' in s:
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return True
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except Exception as e:
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print("Exception : " + str(e))
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time.sleep(1)
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return s
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def check_sim_presence():
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while not os.path.exists(SERIAL_DEV):
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time.sleep(1)
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ser = serial.Serial(SERIAL_DEV, 115200, timeout=0.5)
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while True:
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try:
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ser.read()
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break
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except Exception:
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pass
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if sim_present(ser):
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print("sim present")
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else:
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print("no sim, switching to esim")
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switch_sim()
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ser.close()
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def read_config():
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config = configparser.ConfigParser()
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config.read(CONFIG)
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print(config.get('default', 'SIM'))
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sim = config.get('default', 'SIM')
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if sim == 'auto':
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check_sim_presence()
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elif sim == 'esim' or sim == 'ui-top':
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switch_sim()
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# ui-btm and main are default
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if is_rst_required():
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reset_modem()
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read_config();
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@ -0,0 +1,11 @@
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[Unit]
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After=ublox-config.service
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[Service]
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Type=oneshot
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ExecStart=/usr/bin/sim-config
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[Install]
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WantedBy=ModemManager.service
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@ -0,0 +1,7 @@
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[default]
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#SIM=esim
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#SIM=main
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#SIM=ui-top
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#SIM=ui-btm
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SIM=auto
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@ -0,0 +1,43 @@
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SUMMARY = "Select the wanted sim card"
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DESCRIPTION = "Allows to select which sim card to use from a config file"
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AUTHOR = "Alexandre Bard"
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SECTION = "connectivity"
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LICENSE = "GPLv2+"
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LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6"
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PR = "r2"
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RDEPENDS_${PN}="python3-pyserial"
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inherit systemd
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SRC_URI = " \
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file://sim-config.service \
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file://sim-config.py \
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file://sim.conf \
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"
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S = "${WORKDIR}"
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INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
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SYSTEMD_SERVICE_${PN} = "sim-config.service"
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SYSTEMD_AUTO_ENABLE ?= "enable"
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FILES_${PN}_append = " \
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/lib \
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/usr \
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/etc \
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"
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do_install () {
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install -d ${D}${systemd_unitdir}/system/
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install -m 0644 sim-config.service ${D}${systemd_unitdir}/system/
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install -d ${D}/usr/bin
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install -m 0755 sim-config.py ${D}/usr/bin/sim-config
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install -d ${D}/etc
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install -m 0644 sim.conf ${D}/etc/
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}
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@ -41,14 +41,10 @@ execute_and_check(b'AT+UUSBCONF=2,"ECM",0')
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print("Resetting modem")
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ser.write(b'AT+CFUN=16\r')
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# Let the reset be done by sim-config to avoid 2 resets
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# ser.write(b'AT+CFUN=16\r')
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f = open('/tmp/modem-reset-required', 'w')
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f.write('1')
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f.close()
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ser.close()
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# Wait until modem rebooted
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while True:
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dirs = os.listdir("/dev")
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for file in dirs:
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if file == 'ttyACM2':
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sys.exit(0);
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time.sleep(1)
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@ -1,5 +1,5 @@
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[Unit]
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Before=ModemManager.service
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Before=sim-config.service
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[Service]
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Type=oneshot
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