C++ (Cpp) ite_get_pulse_width_bits示例

示例#1

文件： ite-cir.c 项目： AiWinters/linux

/* set all the rx/tx carrier parameters; this must be called with the device
 * spinlock held */
static void ite_set_carrier_params(struct ite_dev *dev)
{
	unsigned int freq, low_freq, high_freq;
	int allowance;
	bool use_demodulator;
	bool for_tx = dev->transmitting;

	ite_dbg("%s called", __func__);

	if (for_tx) {
		/* we don't need no stinking calculations */
		freq = dev->params.tx_carrier_freq;
		allowance = ITE_RXDCR_DEFAULT;
		use_demodulator = false;
	} else {
		low_freq = dev->params.rx_low_carrier_freq;
		high_freq = dev->params.rx_high_carrier_freq;

		if (low_freq == 0) {
			/* don't demodulate */
			freq =
			ITE_DEFAULT_CARRIER_FREQ;
			allowance = ITE_RXDCR_DEFAULT;
			use_demodulator = false;
		} else {
			/* calculate the middle freq */
			freq = (low_freq + high_freq) / 2;

			/* calculate the allowance */
			allowance =
			    DIV_ROUND_CLOSEST(10000 * (high_freq - low_freq),
					      ITE_RXDCR_PER_10000_STEP
					      * (high_freq + low_freq));

			if (allowance < 1)
				allowance = 1;

			if (allowance > ITE_RXDCR_MAX)
				allowance = ITE_RXDCR_MAX;
		}
	}

	/* set the carrier parameters in a device-dependent way */
	dev->params.set_carrier_params(dev, ite_is_high_carrier_freq(freq),
		 use_demodulator, ite_get_carrier_freq_bits(freq), allowance,
		 ite_get_pulse_width_bits(freq, dev->params.tx_duty_cycle));
}

示例#2

文件： ite-cir.c 项目： DirtyDroidX/android_kernel_htc_m8ul

static void ite_set_carrier_params(struct ite_dev *dev)
{
	unsigned int freq, low_freq, high_freq;
	int allowance;
	bool use_demodulator;
	bool for_tx = dev->transmitting;

	ite_dbg("%s called", __func__);

	if (for_tx) {
		
		freq = dev->params.tx_carrier_freq;
		allowance = ITE_RXDCR_DEFAULT;
		use_demodulator = false;
	} else {
		low_freq = dev->params.rx_low_carrier_freq;
		high_freq = dev->params.rx_high_carrier_freq;

		if (low_freq == 0) {
			
			freq =
			ITE_DEFAULT_CARRIER_FREQ;
			allowance = ITE_RXDCR_DEFAULT;
			use_demodulator = false;
		} else {
			
			freq = (low_freq + high_freq) / 2;

			
			allowance =
			    DIV_ROUND_CLOSEST(10000 * (high_freq - low_freq),
					      ITE_RXDCR_PER_10000_STEP
					      * (high_freq + low_freq));

			if (allowance < 1)
				allowance = 1;

			if (allowance > ITE_RXDCR_MAX)
				allowance = ITE_RXDCR_MAX;
		}
	}

	
	dev->params.set_carrier_params(dev, ite_is_high_carrier_freq(freq),
		 use_demodulator, ite_get_carrier_freq_bits(freq), allowance,
		 ite_get_pulse_width_bits(freq, dev->params.tx_duty_cycle));
}