File content as of revision 17:0a6631f918a5:

// @autor: jeremie@wizzilab.com
// @date: 2017-05-02

#include "DebouncedInterrupt.h"
#include "modem_ref_helper.h"
#include "modem_callbacks.h"

Semaphore button_user(0);
Semaphore modem_ready(0);
Queue<void, 8> modem_resp;

enum {
    MODEM_RESP_NO,
    MODEM_RESP_TERMINAL,
    MODEM_RESP_DONE,
};

alp_d7a_itf_t my_itf = {
    .type                           = ALP_ITF_TYPE_D7A,
    .cfg.to                         = 0,
    .cfg.te                         = 0,
    .cfg.qos.bf.resp                = D7A_RESP_ALL,
    .cfg.qos.bf.retry               = ALP_RPOL_ONESHOT,
    .cfg.addressee.ctrl.bf.nls      = D7A_NLS_AES_CCM_64,
    .cfg.addressee.ctrl.bf.idf      = D7A_ID_NBID,
    .cfg.addressee.xcl.bf           = {.s = 2, .m = 0x1},// XXX D7A_XCL_GW,
    .cfg.addressee.id[0]            = D7A_CTF_ENCODE(8),
};

// Callback for broadcast read
void my_read_response_callback(uint8_t terminal, int8_t err, uint8_t id)
{
    (void)id;
    
    if (ALP_ERR_NONE > err)
    {
        modem_print_error(ALP_ITF_TYPE_D7A, err);
    }
    
    if (terminal)
    {    
        modem_resp.put((void*)MODEM_RESP_TERMINAL);
    }
    else
    {
        if (ALP_ERR_NONE == err)
        {
            modem_resp.put((void*)MODEM_RESP_DONE);
        }
    }
}

// Interrupt Service Routine on button press.
void button_push_isr( void )
{
    button_user.release();
}

void button_user_thread()
{
    FPRINT("(id:0x%08x)\r\n", osThreadGetId());

    osEvent evt;
    uint32_t resp;
    d7a_sp_res_t istat;
    fw_version_t fw_ver;
    uint8_t nb = 0;

    uint8_t id = modem_get_id(my_read_response_callback);
        
    uint8_t scan_xcl[] = { 0x01, 0x21 };
    
    memset(&istat, 0, sizeof(d7a_sp_res_t));
    memset(&fw_ver, 0, sizeof(fw_version_t));
    
    while (true)
    {
        // Wait for button press
        PRINT("Press button to scan...\r\n");
        button_user.acquire();
        
        for (uint8_t i = 0; i < sizeof(scan_xcl); i++)
        {
            nb = 0;
            my_itf.cfg.addressee.xcl.byte = scan_xcl[i];
            
            PRINT("Scanning XCL 0x%02X...\n", my_itf.cfg.addressee.xcl.byte);
            
            modem_remote_read_file((uint8_t*)&my_itf, D7_ITF_SIZE(&my_itf), (void*)&istat, D7A_FID_FIRMWARE_VERSION, (void*)&fw_ver, 12, sizeof(fw_version_t), id);
            
            do
            {
                evt = modem_resp.get();
                resp = (evt.status == osEventMessage)? (uint32_t)evt.value.p : MODEM_RESP_NO;
                
                if (MODEM_RESP_DONE == resp)
                {
                    nb++;
                    PRINT("%d: XCL:%02X ", nb, istat.addressee.xcl.byte);
                    PRINT_DATA("UID:", "%02X", istat.addressee.id, 8, " ");
                    PRINT("snr:%d rxlev:%d lb:%d ", istat.snr, istat.rxlev, istat.lb);
                    PRINT("v%d.%d.%d\n", fw_ver.major, fw_ver.minor, fw_ver.patch);
                    
                    // Reset variables
                    memset(&istat, 0, sizeof(d7a_sp_res_t));
                    memset(&fw_ver, 0, sizeof(fw_version_t));
                }

            } while (MODEM_RESP_TERMINAL != resp);
        }
        
        PRINT("Done.\n");
    }
}

modem_callbacks_t callbacks = {
    .read       = my_read,
    .write      = my_write,
    .read_fprop = my_read_fprop,
    .flush      = my_flush,
    .remove     = my_delete,
    .udata      = my_udata,
    .lqual      = my_lqual,
    .ldown      = my_ldown,
    .reset      = my_reset,
    .boot       = my_boot,
    .busy       = my_busy,
    .itf_busy   = NULL,
};

// Callback for id User
void my_main_callback(uint8_t terminal, int8_t err, uint8_t id)
{
    (void)id;
    
    if (ALP_ERR_NONE != err)
    {
        modem_print_error(ALP_ITF_TYPE_D7A, err);
    }
    
    if (terminal)
    {    
        modem_ready.release();
    }
}

/*** Main function ------------------------------------------------------------- ***/
int main()
{
    // Start & initialize
#ifdef DEBUG_LED
    DBG_OPEN(DEBUG_LED);
#else
    DBG_OPEN(NC);
#endif
    PRINT("\n"
          "-----------------------------------------\n"
          "--------- Demo ActiveRFIDReader ---------\n"
          "-----------------------------------------\n");
          
    FPRINT("(id:0x%08x)\r\n", osThreadGetId());
    
    modem_helper_open(&callbacks);
    
    uint8_t id = modem_get_id(my_main_callback);
    
    PRINT("Start D7A Stack\n");
    modem_activate_itf(ALP_ITF_TYPE_D7A, 24, 0, ALP_D7A_ISTAT_RESP | ALP_D7A_ISTAT_UNS | ALP_D7A_ISTAT_EOP, true, id);
    modem_ready.acquire();
    
    modem_free_id(id);

#ifdef DEBUG_BUTTON
    DebouncedInterrupt user_interrupt(DEBUG_BUTTON);
    user_interrupt.attach(button_push_isr, IRQ_FALL, 500, true);
    
    Thread but_th(osPriorityNormal, 2048, NULL);
    osStatus status = but_th.start(button_user_thread);
    ASSERT(status == osOK, "Failed to start but thread (err: %d)\r\n", status);
#else
    #error You need a button to use this APP as is
#endif

#ifdef DEBUG_LED
    DigitalOut my_led(DEBUG_LED);
#endif
    
    // Set main task to lowest priority
    osThreadSetPriority(osThreadGetId(), osPriorityLow);
    while(true)
    {
        ThisThread::sleep_for(500);
#ifdef DEBUG_LED
        my_led = !my_led;
#endif
    }
}