platform_config.h

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/*
 * Copyright (c) 2010-2012 Digi International Inc.,
 * All rights not expressly granted are reserved.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Digi International Inc. 11001 Bren Road East, Minnetonka, MN 55343
 * =======================================================================
 */

#ifndef __XBEE_PLATFORM_DOS
#define __XBEE_PLATFORM_DOS

    // macros used to declare a packed structure (no alignment of elements)
    // The more-flexible XBEE_PACKED() replaced PACKED_STRUCT in 2019.
    #define PACKED_STRUCT       _Packed struct
    #define XBEE_PACKED(name, decl) PACKED_STRUCT name decl

    #define _f_memcpy       memcpy
    #define _f_memset       memset

    // stdint.h for int8_t, uint8_t, int16_t, etc. types
    #ifdef __WATCOMC__
        #include <stdint.h>
    #else
        typedef signed char     int8_t;
        typedef unsigned char   uint8_t;
        typedef short               int16_t;
        typedef unsigned short  uint16_t;
        typedef long                int32_t;
        typedef unsigned long   uint32_t;

        typedef unsigned short  uint_fast8_t;
        typedef signed short        int_fast8_t;

        #define __FUNCTION__    ""
    #endif
    // This type isn't in stdint.h
    typedef int                 bool_t;


    // Load platform's endian header to learn whether we're big or little.
    //#include <endian.h>   // Not available on Watcom DOS, so do manually:
    #define LITTLE_ENDIAN   1234
    #define BIG_ENDIAN      4321

    #define BYTE_ORDER      LITTLE_ENDIAN

// On the DOS platform, some pointers are "far".  Many platforms just have
// a single pointer type and will define FAR to nothing.
// For now, don't need far data, so use small or medium memory model.
    #define FAR

    #define INTERRUPT_ENABLE        _enable()
    #define INTERRUPT_DISABLE       _disable()

// Elements needed to keep track of serial port settings.  Must have a
// baudrate member, other fields are platform-specific.
typedef struct xbee_serial_t {
    uint32_t        baudrate;
    uint16_t        flags;
        #define XST_INIT_OK 0x0001      // Ser port initialized OK
    uint16_t        comport;        // 1 = COM1, 2 = COM2 etc.
    uint16_t        port;           // I/O address of UART: COM1 = 0x3F8 etc.
    void (__interrupt FAR *prev_int)();     // Previous COM port interrupt handler
    uint16_t        intvec;     // Interrupt vector number: 0x0C for COM1 etc.
    uint16_t        picmask;        // PIC mask bit (corresponding to IRQ): 1<<4 for IRQ4
    uint8_t     lsr_mask;   // Mask of line status conditions that are enabled.
        // These determined by UART hardware...
        #define XST_MASK_DR         0x01            // Data Ready
        #define XST_MASK_OE         0x02            // Overrun error
        #define XST_MASK_PE         0x04            // Parity error
        #define XST_MASK_FE         0x08            // Frame error
        #define XST_MASK_BI         0x10            // Break interrupt
        #define XST_MASK_THRE       0x20            // Tx holding reg empty
        #define XST_MASK_TEMT       0x40            // Tx shift register empty
        #define XST_MASK_FIFOE      0x80            // Rx FIFO error
    struct xbee_cbuf_t *    txbuf;  // Transmit circular buffer
    struct xbee_cbuf_t *    rxbuf;  // Receive circular buffer
    uint16_t        isr_count;  // For debug - count UART interrupts
    uint16_t        isr_rent;   // For debug - count ISR reentry
    uint16_t        oe;         // Overrun error count
    uint16_t        pe;         // Parity error count
    uint16_t        fe;         // Frame error count
    uint16_t        bi;         // Break interrupt count
} xbee_serial_t;

// DOS epoch is 1/1/1970
#define ZCL_TIME_EPOCH_DELTA    ZCL_TIME_EPOCH_DELTA_1970

// our millisecond timer has a ?ms resolution
#include <time.h>
#define XBEE_MS_TIMER_RESOLUTION (1000 / CLOCKS_PER_SEC)

#define WPAN_MAX_CONVERSATIONS 6
#define WPAN_CONVERSATION_TIMEOUT 15

#include <dos.h>
#include <conio.h>
#include <stddef.h>

// console using ANSI.SYS escape codes
void gotoxy_ansi( int col, int row);
void clrscr_ansi( void);

#ifdef __WATCOMC__
    // console using BIOS calls
    void gotoxy00_bios( int col, int row);
    void getxy_bios( int *col, int *row);
    void clrscr_bios( void);

    // gotoxy is commonly 1-based, but BIOS calls in gotoxy00() are 0-based
    #define gotoxy00(x,y)   gotoxy00_bios(x,y)
    #define gotoxy(x,y)     gotoxy00_bios((x)-1, (y)-1)
    #define getxy(x,y)      getxy_bios(x,y)
    #define clrscr()            clrscr_bios()
#else
    // Borland C is 1's based, but we assume 0's based.
    #define gotoxy00(x,y) gotoxy((x)+1, (y)+1)
#endif

#endif      // __XBEE_PLATFORM_DOS