restructuring

F1:F103/pwmdmatest/proto.c

@@ -0,0 +1,49 @@
+/*
+ * This file is part of the pwmtest project.
+ * Copyright 2020 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "proto.h"
+#include "usb.h"
+
+#define USND(str)  do{USB_send(str, sizeof(str)-1);}while(0)
+const char *parse_cmd(const char *buf){
+    if(buf[1] != '\n') return buf;
+    switch(*buf){
+        /*case 'p':
+            pin_toggle(USBPU_port, USBPU_pin);
+            USND("USB pullup is ");
+            if(pin_read(USBPU_port, USBPU_pin)) USND("off\n");
+            else USND("on\n");
+            return NULL;
+        break;*/
+        case 'R':
+            USND("Soft reset\n");
+            NVIC_SystemReset();
+        break;
+        case 'W':
+            USND("Wait for reboot\n");
+            while(1){nop();};
+        break;
+        default: // help
+            return
+            "'R' - software reset\n"
+            "'W' - test watchdog\n"
+            ;
+        break;
+    }
+    return NULL;
+}