restructuring

F0:F030,F042,F072/Socket_fans/main.c

@@ -0,0 +1,113 @@
+/*
+ * main.c
+ *
+ * Copyright 2017 Edward V. Emelianoff <eddy@sao.ru, 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include "flash.h"
+#include "hardware.h"
+#include "monitor.h"
+#include "proto.h"
+#include "usb.h"
+#include "usb_lib.h"
+
+volatile uint32_t Tms = 0;
+
+volatile uint32_t Coolerspeed[2]; // RPM of cooler0/1
+
+/* Called when systick fires */
+void sys_tick_handler(void){
+    static uint32_t actr = 0;
+    ++Tms;
+    if(++actr == 1000){ // RPM counter
+        Coolerspeed[0] = TIM3->CNT/2;
+        TIM3->CNT = 0;
+        Coolerspeed[1] = Cooler1RPM/2;
+        Cooler1RPM = 0;
+        actr = 0;
+    }
+}
+
+#define USBBUF 63
+// usb getline
+static char *get_USB(){
+    static char tmpbuf[USBBUF+1], *curptr = tmpbuf;
+    static int rest = USBBUF;
+    uint8_t x = USB_receive((uint8_t*)curptr);
+    if(!x) return NULL;
+    curptr[x] = 0;
+    if(x == 1 && *curptr == 0x7f){ // backspace
+        if(curptr > tmpbuf){
+            --curptr;
+            USND("\b \b");
+        }
+        return NULL;
+    }
+    USB_sendstr(curptr); // echo
+    if(curptr[x-1] == '\n'){ // || curptr[x-1] == '\r'){
+        curptr = tmpbuf;
+        rest = USBBUF;
+        // omit empty lines
+        if(tmpbuf[0] == '\n') return NULL;
+        // and wrong empty lines
+        if(tmpbuf[0] == '\r' && tmpbuf[1] == '\n') return NULL;
+        return tmpbuf;
+    }
+    curptr += x; rest -= x;
+    if(rest <= 0){ // buffer overflow
+        curptr = tmpbuf;
+        rest = USBBUF;
+    }
+    return NULL;
+}
+
+int main(void){
+    uint32_t lastT = 0, lastTmon = 0;
+    char *txt;
+    sysreset();
+    SysTick_Config(6000, 1);
+    flashstorage_init();
+    HW_setup();
+    USB_setup();
+    RCC->CSR |= RCC_CSR_RMVF; // remove reset flags
+    iwdg_setup();
+
+    ON(COOLER0); // turn on power, manage only by PWM
+    ON(COOLER1);
+
+    while (1){
+        IWDG->KR = IWDG_REFRESH; // refresh watchdog
+        if(Tms - lastT > MONITOR_PERIOD){
+            process_monitor();
+            lastT = Tms;
+        }
+        if(showMon && Tms - lastTmon > 4999){
+            showState();
+            IWDG->KR = IWDG_REFRESH;
+            lastTmon = Tms;
+        }
+        usb_proc();
+        if((txt = get_USB())){
+            IWDG->KR = IWDG_REFRESH;
+            cmd_parser(txt);
+        }
+        IWDG->KR = IWDG_REFRESH;
+        buzzer_chk();
+    }
+    return 0;
+}