/////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Name:            ht.c
// Created:         July 2019
// Author(s):       Philip Smart
// Description:     Standalone App for the zOS/ZPU test application.
//                  This program implements a loadable appliation which can be loaded from SD card by
//                  the zOS/ZPUTA application. The idea is that commands or programs can be stored on the
//                  SD card and executed by zOS/ZPUTA just like an OS such as Linux. The primary purpose
//                  is to be able to minimise the size of zOS/ZPUTA for applications where minimal ram is
//                  available.
//
// Credits:         
// Copyright:       (c) 2019-2020 Philip Smart <philip.smart@net2net.org>
//
// History:         July 2019    - Initial framework creation.
//                  April 2020   - Updates to function with the K64F processor and zOS.
//
// Notes:           See Makefile to enable/disable conditional components
//
/////////////////////////////////////////////////////////////////////////////////////////////////////////
// This source file 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 source file 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/>.
/////////////////////////////////////////////////////////////////////////////////////////////////////////

#ifdef __cplusplus
    extern "C" {
#endif

#if defined(__K64F__)
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include "k64f_soc.h"
  #define uint32_t __uint32_t
  #define uint16_t __uint16_t
  #define uint8_t  __uint8_t
  #define int32_t  __int32_t
  #define int16_t  __int16_t
  #define int8_t   __int8_t
#elif defined(__ZPU__)
  #include <zstdio.h>
  #include <zpu-types.h>
  #include "zpu_soc.h"
  #include <stdlib.h>
#else
  #error "Target CPU not defined, use __ZPU__ or __K64F__"
#endif
#include "interrupts.h"
#include "ff.h"            /* Declarations of FatFs API */
#include "diskio.h"
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include "xprintf.h"
#include "utils.h"
//
#if defined __ZPUTA__
  #include "zputa_app.h"
#elif defined __ZOS__
  #include "zOS_app.h"
#else
  #error OS not defined, use __ZPUTA__ or __ZOS__      
#endif
//
#include "ht.h"

// Utility functions.
#include "tools.c"

// Version info.
#define VERSION      "v1.1"
#define VERSION_DATE "10/04/2020"
#define APP_NAME     "HT"

// Main entry and start point of a zOS/ZPUTA Application. Only 2 parameters are catered for and a 32bit return code, additional parameters can be added by changing the appcrt0.s
// startup code to add them to the stack prior to app() call.
//
// Return code for the ZPU is saved in _memreg by the C compiler, this is transferred to _memreg in zOS/ZPUTA in appcrt0.s prior to return.
// The K64F ARM processor uses the standard register passing conventions, return code is stored in R0.
//
uint32_t app(uint32_t param1, uint32_t param2)
{
    // Initialisation.
    //
  #if defined __ZPU__
    char      *ptr = (char *)param1;

    xputs("Testing RTC & Up/Down Timers\n");
    TIMER_MILLISECONDS_UP = 60000;
xputs("Timer Set\n");
    while(getserial_nonblocking() == -1)
    {
xputs("While loop\n");
        if(TIMER_MICROSECONDS_DOWN == 0)
        {
            TIMER_MICROSECONDS_DOWN = 10000000;
            xputs("\r\nuSec down counter expired.\n");
        }
        if(TIMER_MILLISECONDS_DOWN == 0)
        {
            TIMER_MILLISECONDS_DOWN = 60000;
            xputs("\r\nmSec down counter expired.\n");
        }
        if(TIMER_SECONDS_DOWN == 0)
        {
            TIMER_SECONDS_DOWN = 60;
            xputs("\r\nSecond down counter expired.\n");
        }
        if(TIMER_MILLISECONDS_UP == 60000)
        {
            TIMER_MILLISECONDS_UP = 0;
            xputs("\r\nmSec up counter expired.\n");
        }

        xprintf("%02d/%02d/%02d %02d:%02d:%02d.%03d%03d %10lu %10lu %10lu %10lu\r", RTC_YEAR, RTC_MONTH, RTC_DAY, RTC_HOUR, RTC_MINUTE, RTC_SECOND, RTC_MILLISECONDS, RTC_MICROSECONDS, TIMER_MICROSECONDS_DOWN, TIMER_MILLISECONDS_DOWN, TIMER_SECONDS_DOWN, TIMER_MILLISECONDS_UP);
    }
    xputs("\n");
 #elif defined __K64F__
    xputs("This application only works on the ZPU processor.\n");
  #else
    #error "Target CPU not defined, use __ZPU__ or __K64F__"
  #endif

    return(0);
}

#ifdef __cplusplus
}
#endif