Merge pull request #15012 from felser/MTS_DRAGONFLY_L496VG

Add platform MTS_DRAGONFLY_L496VG

Author: 0xc0170

hal/tests/TESTS/mbed_hal/qspi/flash_configs/flash_configs.h

@@ -46,6 +46,9 @@
 #undef QSPI_CMD_WRITE_DPI
 #undef QSPI_CMD_WRITE_QPI
 
+#elif defined(TARGET_MTS_DRAGONFLY_L496VG)
+#include "MT25Q_config.h"
+
 #elif defined(TARGET_NRF52840)
 #if TARGET_EP_AGORA
 #include "NORDIC/EP_AGORA/flash_config.h"

platform/mbed_lib.json

@@ -164,7 +164,7 @@
         },
         "UNO_91H": {
             "stdio-baud-rate": 115200
-        }, 
+        },
         "DISCO_L475VG_IOT01A": {
             "crash-capture-enabled": true,
             "fatal-error-auto-reboot-enabled": true

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/CMakeLists.txt

@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 add_subdirectory(TARGET_DISCO_L496AG EXCLUDE_FROM_ALL)
+add_subdirectory(TARGET_MTS_DRAGONFLY_L496VG EXCLUDE_FROM_ALL)
 add_subdirectory(TARGET_NUCLEO_L496ZG EXCLUDE_FROM_ALL)
 
 if(${MBED_TOOLCHAIN} STREQUAL "GCC_ARM")

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/TARGET_MTS_DRAGONFLY_L496VG/CMakeLists.txt

@@ -0,0 +1,18 @@
+# Copyright (c) 2021 ARM Limited. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+add_library(mbed-mts-dragonfly-l496vg INTERFACE)
+
+target_sources(mbed-mts-dragonfly-l496vg
+    INTERFACE
+        ONBOARD_QUECTEL_EG25.cpp
+        PeripheralPins.c
+        TargetInit.c
+)
+
+target_include_directories(mbed-mts-dragonfly-l496vg
+    INTERFACE
+        .
+)
+
+target_link_libraries(mbed-mts-dragonfly-l496vg INTERFACE mbed-stm32l496xg)

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/TARGET_MTS_DRAGONFLY_L496VG/ONBOARD_QUECTEL_EG25.cpp

@@ -0,0 +1,222 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2018 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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 "QUECTEL_EC2X.h"
+#include "ONBOARD_QUECTEL_EG25.h"
+#include "gpio_api.h"
+#include "platform/mbed_thread.h"
+#include "PinNames.h"
+#include "drivers/BufferedSerial.h"
+#include "CellularLog.h"
+#include "mbed_wait_api.h"
+
+using namespace mbed;
+
+ONBOARD_QUECTEL_EG25::ONBOARD_QUECTEL_EG25(FileHandle *fh, PinName pwr, bool active_high, PinName rst) : QUECTEL_EC2X(fh, pwr, active_high, rst)
+{
+    initialized = 0;
+    ls = new DigitalOut(LS_LED);
+    net_status = new InterruptIn(NET_STATUS);
+}
+
+nsapi_error_t ONBOARD_QUECTEL_EG25::hard_power_on()
+{
+    onboard_modem_init();
+    return NSAPI_ERROR_OK;
+}
+
+nsapi_error_t ONBOARD_QUECTEL_EG25::hard_power_off()
+{
+    onboard_modem_deinit();
+    return NSAPI_ERROR_OK;
+}
+
+nsapi_error_t ONBOARD_QUECTEL_EG25::soft_power_on()
+{
+    // See base function description. This function is for power on but reset too.
+    onboard_modem_power_down();
+    onboard_modem_power_up();
+    return NSAPI_ERROR_OK;
+}
+
+nsapi_error_t ONBOARD_QUECTEL_EG25::soft_power_off()
+{
+    onboard_modem_power_down();
+    return NSAPI_ERROR_OK;
+}
+
+CellularDevice *CellularDevice::get_target_default_instance()
+{
+    static BufferedSerial serial(MDMTXD, MDMRXD, 115200);
+#if DEVICE_SERIAL_FC
+    if (MDMRTS != NC && MDMCTS != NC) {
+        tr_debug("Modem flow control: RTS %d CTS %d", MDMRTS, MDMCTS);
+        serial.set_flow_control(SerialBase::RTSCTS, MDMRTS, MDMCTS);
+    }
+#endif
+    static ONBOARD_QUECTEL_EG25 device(&serial, MDMPWRON, 0, MDMRST);
+    return &device;
+}
+
+void ONBOARD_QUECTEL_EG25::press_power_button(int time_us)
+{
+    gpio_t gpio;
+    gpio_init_inout(&gpio, MDMPWRON, PIN_OUTPUT, OpenDrainNoPull, 0);
+    wait_us(time_us);
+    gpio_init_inout(&gpio, MDMPWRON, PIN_INPUT, PullNone, 1);
+}
+
+void ONBOARD_QUECTEL_EG25::onboard_modem_init()
+{
+    // PWRKEY/RADIO_ONOFF = output open drain
+    // RADIO_PWR = Enables the regulator. High = on. Has pulldown on board.
+    // RADIO_RESET/MDMRST = Reset the radio. Open drain or float.
+    // RADIO_STATUS/STATUS = input with pull up. Gets driven low when radio is on.
+
+    gpio_t gpio;
+    // Enable radio power regulator and buffer, configure RESET_N and PWR_ON.
+    gpio_init_inout(&gpio, RADIO_PWR, PIN_OUTPUT, PushPullNoPull, 1);
+    gpio_init_inout(&gpio, BUF_EN, PIN_OUTPUT, OpenDrainNoPull, 0);
+    // MDMRST and MDMPWRON get driven low via open drain.
+    gpio_init_inout(&gpio, MDMRST, PIN_INPUT, PullNone, 1);
+    gpio_init_inout(&gpio, MDMPWRON, PIN_INPUT, PullNone, 1);
+    gpio_init_in_ex(&gpio, RADIO_STATUS, PullUp);
+    // Quectel hardware design guide recommends >= 30ms from powered until
+    //  PWRKEY(MDMPWRON) is pulled low.
+    wait_us(40000);
+    initialized = 1;
+}
+
+void ONBOARD_QUECTEL_EG25::onboard_modem_deinit()
+{
+    // Make sure to power down before removing power!
+    onboard_modem_power_down();
+    gpio_t gpio;
+
+    // Set all to inputs no pull. Let pull resistors do their thing. Allows
+    // for lowest power draw. Disable radio power regulator and buffer.
+    gpio_init_inout(&gpio, MDMRST, PIN_INPUT, PullNone, 1);
+    gpio_init_inout(&gpio, MDMPWRON, PIN_INPUT, PullNone, 1);
+    gpio_init_inout(&gpio, BUF_EN, PIN_INPUT, PullNone, 1);
+    gpio_init_inout(&gpio, RADIO_PWR, PIN_INPUT, PullNone, 0);
+    initialized = 0;
+}
+
+void ONBOARD_QUECTEL_EG25::link_status()
+{
+    ls->write(net_status->read());
+}
+
+void ONBOARD_QUECTEL_EG25::onboard_modem_power_up()
+{
+    // NET_STATUS = input. InterruptIn make LS LED follow.
+    // LS_LED = output. Follow NET_STATUS.
+    net_status->rise(callback(this,&ONBOARD_QUECTEL_EG25::link_status));
+    net_status->fall(callback(this,&ONBOARD_QUECTEL_EG25::link_status));
+
+    // Make sure the radio is initialized so it can be powered on.
+    if (!initialized){
+        onboard_modem_init();
+    }
+
+    gpio_t status;
+    gpio_init_in_ex(&status, RADIO_STATUS, PullUp);
+
+    int radio_off = gpio_read(&status);
+    // If radio is on, do nothing.
+    if (!radio_off) {
+        return;
+    }
+
+    // Activate PWRKEY at least 500ms to turn on.
+    press_power_button(550000);
+
+    // Wait 10s for status to go low before retrying.
+    uint8_t timeout = 10;
+    do {
+        thread_sleep_for(1000);
+        radio_off = gpio_read(&status);
+        if(!timeout--){
+            press_power_button(550000);
+            timeout = 10;
+        }
+    } while (radio_off);
+
+    _at.lock();
+
+    _at.set_at_timeout(15000);
+    _at.resp_start();
+    _at.set_stop_tag("RDY");
+    bool rdy = _at.consume_to_stop_tag();
+    _at.set_stop_tag(OK);
+
+    _at.unlock();
+    if (rdy) {
+        tr_debug("Radio outputted RDY");
+    } else {
+        tr_debug("Radio did not output RDY within 15s.");
+    }
+}
+
+void ONBOARD_QUECTEL_EG25::onboard_modem_power_down()
+{
+    gpio_t status;
+    gpio_init_in_ex(&status, RADIO_STATUS, PullUp);
+    // Need volatile so status check is not optimized out.
+    volatile int radio_off = gpio_read(&status);
+    // Do nothing if it's already off.
+    if (radio_off) {
+        return;
+    }
+
+    // Make sure the I/O are properly initialized.
+    if (!initialized){
+        onboard_modem_init();
+    }
+
+    do {
+        // Activate PWRKEY for at least 650ms to turn off.
+        press_power_button(680000);
+        // Wait 40s for status to go high before resetting.
+        uint8_t timeout = 40;
+        do {
+            thread_sleep_for(1000);
+            radio_off = gpio_read(&status);
+        } while (!radio_off && timeout);
+
+        if (radio_off) {
+            break;
+        }
+        else {
+            onboard_modem_reset();
+        }
+    }
+    while (!radio_off);
+}
+
+void ONBOARD_QUECTEL_EG25::onboard_modem_reset()
+{
+    gpio_t gpio;
+    gpio_init_inout(&gpio, MDMRST, PIN_OUTPUT, OpenDrainNoPull, 0);
+    thread_sleep_for(500);
+    gpio_init_inout(&gpio, MDMRST, PIN_INPUT, PullNone, 1);
+    thread_sleep_for(100);
+}
+
+#endif // MBED_CONF_NSAPI_PRESENT

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/TARGET_MTS_DRAGONFLY_L496VG/ONBOARD_QUECTEL_EG25.h

@@ -0,0 +1,49 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2018 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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.
+ */
+
+#ifndef ONBOARD_QUECTEL_EG25_H
+#define ONBOARD_QUECTEL_EG25_H
+
+#include "QUECTEL_EC2X.h"
+
+namespace mbed {
+
+class ONBOARD_QUECTEL_EG25 : public QUECTEL_EC2X {
+public:
+    ONBOARD_QUECTEL_EG25(FileHandle *fh, PinName pwr, bool active_high, PinName rst);
+
+    virtual nsapi_error_t hard_power_on();
+    virtual nsapi_error_t hard_power_off();
+    virtual nsapi_error_t soft_power_on();
+    virtual nsapi_error_t soft_power_off();
+
+private:
+    uint8_t initialized;
+    DigitalOut* ls;
+    InterruptIn* net_status;
+    void link_status();
+    void press_power_button(int time_ms);
+    void onboard_modem_init();
+    void onboard_modem_deinit();
+    void onboard_modem_power_up();
+    void onboard_modem_power_down();
+    void onboard_modem_reset();
+};
+
+} // namespace mbed
+
+#endif // ONBOARD_QUECTEL_EG25_H