add BG96 povermanagemet

Author: pekkapesu

features/cellular/framework/targets/QUECTEL/BG96/QUECTEL_BG96.cpp

@@ -78,49 +78,97 @@ void QUECTEL_BG96::set_ready_cb(Callback<void()> callback)
 
 nsapi_error_t QUECTEL_BG96::hard_power_on()
 {
-    DigitalOut ModemResetIn (MBED_CONF_QUECTEL_BG96_POWER);
-printf("QUECTEL_BG96::hard_power_on\n");
+    DigitalOut ModemResetIn (MBED_CONF_QUECTEL_BG96_PWR);
+
     wait_ms(250);
     ModemResetIn = 0;
     wait_ms(250);
     ModemResetIn = 1;
     wait_ms(500);
-    wait_ms(250);
+
     return NSAPI_ERROR_OK;
 }
+
 nsapi_error_t QUECTEL_BG96::soft_power_on()
 {
-    DigitalOut ModemPwrkey (MBED_CONF_QUECTEL_BG96_RESET);
-printf("QUECTEL_BG96::soft_power_on\n");
+   // turn moden on
+    DigitalOut ModemPwrkey (MBED_CONF_QUECTEL_BG96_RST);
+
     ModemPwrkey = 0;
     wait_ms(100);
     ModemPwrkey = 1;
     wait_ms(500);
     ModemPwrkey = 0;
     wait_ms(500);
-printf("wait for RDY\n");
+
+    // wait for RDY
     _at->lock();
     _at->set_at_timeout(60000);
     _at->resp_start();
     _at->set_stop_tag("RDY");
     bool rdy = _at->consume_to_stop_tag();
     _at->set_stop_tag(OK);
     _at->unlock();
+
     if (!rdy)
     {
         return NSAPI_ERROR_DEVICE_ERROR;
     }
+
     return NSAPI_ERROR_OK;
 }
+
 nsapi_error_t QUECTEL_BG96::hard_power_off()
 {
-    DigitalOut ModemPwrkey (MBED_CONF_QUECTEL_BG96_POWER);
-printf("QUECTEL_BG96::hard_power_off\n");
+    // turn moden off
+    DigitalOut ModemPwrkey (MBED_CONF_QUECTEL_BG96_PWR);
+
     ModemPwrkey = 1;
     wait_ms(250);
     ModemPwrkey = 0;
+
     return NSAPI_ERROR_OK;
 }
+
+nsapi_error_t QUECTEL_BG96::init()
+{
+    int retry = 0;
+
+    _at->lock();
+    _at->flush();
+    _at->cmd_start("ATE0"); // echo off
+    _at->cmd_stop_read_resp();
+
+    _at->cmd_start("AT+CMEE=1"); // verbose responses
+    _at->cmd_stop_read_resp();
+
+    if (_at->get_last_error() != NSAPI_ERROR_OK)
+    {
+        do
+        {
+            _at->cmd_start("AT+CFUN=1"); // set full functionality
+            _at->cmd_stop_read_resp();
+
+            // CFUN executed ok 
+            if (_at->get_last_error() != NSAPI_ERROR_OK)
+            {
+                // wait some time that modem gets ready for CFUN command, and try again
+                retry++;
+                _at->flush();
+                wait_ms(64);
+            }
+            else
+            {
+                // yes continue
+                break;
+            }
+
+            /* code */
+        } while ( (retry < 3) );
+    }
+    return _at->unlock_return_error();
+}
+
 #if MBED_CONF_QUECTEL_BG96_PROVIDE_DEFAULT
 #include "UARTSerial.h"
 CellularDevice *CellularDevice::get_default_instance()

features/cellular/framework/targets/QUECTEL/BG96/QUECTEL_BG96.h

@@ -43,6 +43,7 @@ class QUECTEL_BG96 : public AT_CellularDevice {
     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 init();
 
 public:
     void handle_urc(FileHandle *fh);

features/cellular/framework/targets/QUECTEL/BG96/mbed_lib.json

@@ -17,21 +17,25 @@
             "help": "CTS pin for serial connection",
             "value": null
         },
+        "pwr": {
+            "help": "Power control pin",
+            "value": null
+        },
+        "rst": {
+            "help": "Reset control pin",
+            "value": null
+        },
+        "polarity": {
+            "help": "Pin polarity, 1 = Active high, 0 = Active low",
+            "value": null
+        },
         "baudrate" : {
             "help": "Serial connection baud rate",
             "value": 115200
         },
         "provide-default": {
             "help": "Provide as default CellularDevice [true/false]",
             "value": false
-        },
-        "power": {
-            "help": "Modem's power key.",
-            "value": null
-        },
-        "reset": {
-            "help": "Modem's reset key.",
-            "value": null
         }
     }
 }