Initial commit

Dependencies:   FastPWM

mbed-dev-master/targets/TARGET_STM/TARGET_STM32F4/TARGET_MTS_DRAGONFLY_F411RE/onboard_modem_api.c

Committer:
lypinator
Date:
2020-09-16
Revision:
0:bb348c97df44

File content as of revision 0:bb348c97df44:

/* mbed Microcontroller Library
 * Copyright (c) 2017 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#if MBED_CONF_NSAPI_PRESENT

#include "cellular/onboard_modem_api.h"
#include "gpio_api.h"
#include "platform/mbed_wait_api.h"
#include "PinNames.h"

#if MODEM_ON_BOARD

static void press_power_button(int time_ms)
{
    gpio_t gpio;

    gpio_init_out_ex(&gpio, MDMPWRON, 1);
    gpio_write(&gpio, 0);
    wait_ms(time_ms);
    gpio_write(&gpio, 1);
}

void onboard_modem_init()
{
    //does nothing at the moment, TODO: MultiTech to add hardware initialization stuff if needed
}

void onboard_modem_deinit()
{
    //does nothing at the moment, TODO: MultiTech to add hardware de-initialization stuff if needed
}
void onboard_modem_power_up()
{
    /* keep the power line low for 200 milisecond */
    press_power_button(200);
    /* give modem a little time to respond */
    wait_ms(100);
}

void onboard_modem_power_down()
{
    gpio_t gpio;

    gpio_init_out_ex(&gpio, MDMPWRON, 0);
    /* keep the power line low for more than 10 seconds.
     * If 3G_ON_OFF pin is kept low for more than a second, a controlled disconnect and shutdown takes
     * place, Due to the network disconnect, shut-off can take up to 30 seconds. However, we wait for 10
     * seconds only   */
    wait_ms(10 * 1000);
}
#endif //MODEM_ON_BOARD
#endif //MBED_CONF_NSAPI_PRESENT