TX/source/broadcast.c

#include "driver.h"
#include "ports.h"
#include "fgen.h"
#include "utils.h"
#include "System/system.h"

#define MIN_BROADCAST_FREQ      3140
#define MAX_BROADCAST_FREQ      210000

static uint8_t Bcast_LF_Value[5] = {0,5,10,15,20};
static uint8_t Bcast_HF_Value[5] = {0,12,25,37,50};

extern SYSTEM_DATA_t sys;

static FREQUENCY_t * setFrequency(ACCESSORY_t *accy, FREQUENCY_t *freq)
{
    // use the current frequency if it is valid, otherwise, set to the lowest valid for broadcast
    bool findFreq = false;
    if (freq != NULL)
    {
        if (freq->frequency < MIN_BROADCAST_FREQ || freq->frequency > MAX_BROADCAST_FREQ)
        {
            findFreq = true;
        }
    }
    else
    {
        findFreq = true;
    }

    if (findFreq)
    {
        freq = fgen_findNearest(MIN_BROADCAST_FREQ);

        if (freq == NULL)
        {
            accy->state = PORT_STATE_ERROR;
            return NULL;
        }
    }

    accy->setPower(accy, sys.driver->powerLevel);

    return freq;
}

static int setPower(ACCESSORY_t *accy, PowerLevel_t power)
{
    FREQUENCY_t *f = driver_getFrequency();

    uint8_t duty = 0;
    if(f->frequency <= 8010)
        duty = Bcast_LF_Value[power];
    else
        duty = Bcast_HF_Value[power];


    driver_setDuty(duty);

    return 0;
}

static void _stateInit(ACCESSORY_t *accy)
{
    FREQUENCY_t *freq = driver_getFrequency();

    if (accy->initState)
    {
        accy->setFrequency = setFrequency;
        accy->setPower = setPower;

        accy->signalPath = SIGNAL_PATH_ANT;

        accy->driveVoltage[LOW_FREQ] = V_27V;
        accy->driveVoltage[HIGH_FREQ] = V_27V;

        driver_setFrequency(freq);

        
        
        ACCY_setTimeout(accy, 500);
    }

    if (ACCY_timedOut(accy))
    {
        accy->state = PORT_STATE_RUNNING;
    }
}



int broadcast_service(ACCESSORY_t *accy)
{
	switch (accy->state)
	{
		case PORT_STATE_INIT:
		{
            _stateInit(accy);
			break;
		}

		case PORT_STATE_DEINIT:
		{
			if (accy->initState)
			{
				//USB_SendString("Broadcast deinitializing...");



				accy->stateTimer = sys.systemTime + 500;
			}

			if (sys.systemTime >= accy->stateTimer)
			{
				accy->state = PORT_STATE_STANDBY;
				//USB_SendString("Broadcast in standby!");
			}

			break;
		}

		case PORT_STATE_RUNNING:
		{
			if (accy->initState)
			{
				//USB_SendString("Broadcast running!");
			}
			break;	
		}
		default:
			return -1;
	}

	return 0;
}