File content as of revision 0:34080147c1da:

/**
 * StarBoard Orange - Example application No.4 (Version 0.0.1)
 * Make a GPS logger!
 *
 * See also ... http://mbed.org/users/shintamainjp/notebook/starboard_example4_ja/
 * See also ... http://mbed.org/users/shintamainjp/notebook/starboard_example4_en/
 *
 * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
 * http://shinta.main.jp/
 */

/*
 * Connection map.
 *
 * +---+----------------+---------+
 * |Pin|Target          |Direction|
 * +---+----------------+---------+
 * |
 * +---+----------------+---------+
 */

#include "mbed.h"
#include "TextLCD.h"
#include "SerialGPS.h"
#include "SDFileSystem.h"
#include "ReceiverIR.h"
#include "RemoteIR.h"

/*
 * Objects.
 */
TextLCD lcd(p24, p26, p27, p28, p29, p30);
BusOut led(LED4, LED3, LED2, LED1);
SerialGPS gps(p9, p10);
SDFileSystem sd(p5, p6, p7, p8, "sd");
Ticker ticker;
ReceiverIR ir_rx(p15);

/*
 * Variables.
 */
static bool sd_disabled = false;
static FILE *fp = NULL;
static int display_mode = 0;

/*
 * Functions.
 */

/**
 * A ticker function.
 */
void func_ticker(void) {
    led = led + 1;
}

/**
 * A callback function for logging data.
 */
void cbfunc_log(char *s) {
    if (!sd_disabled) {
        fprintf(fp, "%s\n", s);
        fflush(fp);
    } else {
        // printf("%s\n", s);
    }
}

/**
 * A callback function for GGA.
 *
 * GGA - Global Positioning System Fixed Data.
 */
void cbfunc_gga(SerialGPS::gps_gga_t *p) {
    if (display_mode == 0) {
        lcd.locate(0, 1);
        lcd.printf("%02d:%02d:%02d(P%d,S%d)", p->hour, p->min, p->sec, p->position_fix, p->satellites_used);
    }

    if (display_mode == 1) {
        lcd.locate(0, 1);
        lcd.printf("%c=%10.4f", p->ns, p->latitude);
    }
    if (display_mode == 2) {
        lcd.locate(0, 1);
        lcd.printf("%c=%10.4f", p->ew, p->longitude);
    }
}

/**
 * A callback function for GSA.
 *
 * GSA - GNSS DOP and Active Satellites.
 */
void cbfunc_gsa(SerialGPS::gps_gsa_t *p) {
    if (display_mode == 3) {
        lcd.locate(0, 1);
        lcd.printf("SEL:%c FIX:%d", p->selmode, p->fix);
    }
}

/**
 * A callback function for GSV.
 *
 * GSV - GNSS Satellites in View.
 */
void cbfunc_gsv(SerialGPS::gps_gsv_t *p) {
    if (display_mode == 4) {
        lcd.locate(0, 1);
        lcd.printf("Satellites:%2d", p->satcnt);
    }
}

/**
 * A callback function for RMC.
 *
 * RMC - Recommended Minimum Specific GNSS Data.
 */
void cbfunc_rmc(SerialGPS::gps_rmc_t *p) {
    if (display_mode == 5) {
        lcd.locate(0, 1);
        lcd.printf("%02d:%02d:%02d(%c)", p->hour, p->min, p->sec, p->status);
    }
}

/**
 * Entry point.
 */
int main() {
    /*
     * Attach callback functions.
     */
    SerialGPS::gps_callback_t cb;
    cb.cbfunc_log = cbfunc_log;
    cb.cbfunc_gga = cbfunc_gga;
    cb.cbfunc_gsa = cbfunc_gsa;
    cb.cbfunc_gsv = cbfunc_gsv;
    cb.cbfunc_rmc = cbfunc_rmc;
    gps.attach(&cb);

    /*
     * Test a SD card.
     */
    fp = fopen("/sd/gpslog.txt", "w");
    if (fp == NULL) {
        sd_disabled = true;
    } else {
        sd_disabled = false;
        fprintf(fp, "Hello World!\n");
    }

    /*
     * Attach a ticker for interrupt test.
     */
    ticker.attach_us(&func_ticker, 250 * 1000);

    /*
     * Initial display.
     */
    lcd.cls();
    lcd.printf("GGA (Time)");

    /*
     * Loop.
     */
    int irlen;
    uint8_t irbuf[32];
    RemoteIR::Format irfmt;
    while (1) {
        irlen = ir_rx.getData(&irfmt, irbuf, sizeof(irbuf) * 8);
        if (0 < irlen) {
            uint64_t n = 0;
            for (int i = 0; i < irlen; i++) {
                if (irbuf[i / 8] & (1 << (i % 8))) {
                    n = n | (1 << i);
                }
            }
            // printf("%d:0x%llx\n", irlen, n);
            if ((irlen == 12) && (irfmt == RemoteIR::SONY)) {
                switch (n) {
                    case 0x80:
                        display_mode = 0;
                        lcd.cls();
                        lcd.printf("GGA (Time)");
                        break;
                    case 0x81:
                        display_mode = 1;
                        lcd.cls();
                        lcd.printf("GGA (Latitude)");
                        break;
                    case 0x82:
                        display_mode = 2;
                        lcd.cls();
                        lcd.printf("GGA (Longitude)");
                        break;
                    case 0x83:
                        display_mode = 3;
                        lcd.cls();
                        lcd.printf("GSA (Statuses)");
                        break;
                    case 0x84:
                        display_mode = 4;
                        lcd.cls();
                        lcd.printf("GSV (Satellites)");
                        break;
                    case 0x85:
                        display_mode = 5;
                        lcd.cls();
                        lcd.printf("RMC (Time)");
                        break;
                    default:
                        break;
                }
            }
        }
        gps.processing();
    }
}