Exemplo n.º 1
0
static unsigned ni_660x_clock_src_select(const struct ni_gpct *counter)
{
	unsigned clock_source = 0;
	unsigned i;
	const unsigned input_select = (ni_tio_get_soft_copy(counter,
							    NITIO_Gi_Input_Select_Reg
							    (counter->counter_index))
				       & Gi_Source_Select_Mask) >>
	    Gi_Source_Select_Shift;

	switch (input_select) {
	case NI_660x_Timebase_1_Clock:
		clock_source = NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS;
		break;
	case NI_660x_Timebase_2_Clock:
		clock_source = NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS;
		break;
	case NI_660x_Timebase_3_Clock:
		clock_source = NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS;
		break;
	case NI_660x_Logic_Low_Clock:
		clock_source = NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS;
		break;
	case NI_660x_Source_Pin_i_Clock:
		clock_source = NI_GPCT_SOURCE_PIN_i_CLOCK_SRC_BITS;
		break;
	case NI_660x_Next_Gate_Clock:
		clock_source = NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS;
		break;
	case NI_660x_Next_TC_Clock:
		clock_source = NI_GPCT_NEXT_TC_CLOCK_SRC_BITS;
		break;
	default:
		for (i = 0; i <= ni_660x_max_rtsi_channel; ++i) {
			if (input_select == NI_660x_RTSI_Clock(i)) {
				clock_source = NI_GPCT_RTSI_CLOCK_SRC_BITS(i);
				break;
			}
		}
		if (i <= ni_660x_max_rtsi_channel)
			break;
		for (i = 0; i <= ni_660x_max_source_pin; ++i) {
			if (input_select == NI_660x_Source_Pin_Clock(i)) {
				clock_source =
				    NI_GPCT_SOURCE_PIN_CLOCK_SRC_BITS(i);
				break;
			}
		}
		if (i <= ni_660x_max_source_pin)
			break;
		BUG();
		break;
	}
	clock_source |= ni_tio_clock_src_modifiers(counter);
	return clock_source;
}
Exemplo n.º 2
0
static unsigned ni_m_series_clock_src_select(const struct ni_gpct *counter)
{
	struct ni_gpct_device *counter_dev = counter->counter_dev;
	const unsigned second_gate_reg =
		NITIO_Gi_Second_Gate_Reg(counter->counter_index);
	unsigned clock_source = 0;
	unsigned i;
	const unsigned input_select = (ni_tio_get_soft_copy(counter,
			NITIO_Gi_Input_Select_Reg(counter->
				counter_index)) & Gi_Source_Select_Mask) >>
		Gi_Source_Select_Shift;

	switch (input_select) {
	case NI_M_Series_Timebase_1_Clock:
		clock_source = NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS;
		break;
	case NI_M_Series_Timebase_2_Clock:
		clock_source = NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS;
		break;
	case NI_M_Series_Timebase_3_Clock:
		if (counter_dev->
			regs[second_gate_reg] & Gi_Source_Subselect_Bit)
			clock_source =
				NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS;
		else
			clock_source = NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS;
		break;
	case NI_M_Series_Logic_Low_Clock:
		clock_source = NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS;
		break;
	case NI_M_Series_Next_Gate_Clock:
		if (counter_dev->
			regs[second_gate_reg] & Gi_Source_Subselect_Bit)
			clock_source = NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS;
		else
			clock_source = NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS;
		break;
	case NI_M_Series_PXI10_Clock:
		clock_source = NI_GPCT_PXI10_CLOCK_SRC_BITS;
		break;
	case NI_M_Series_Next_TC_Clock:
		clock_source = NI_GPCT_NEXT_TC_CLOCK_SRC_BITS;
		break;
	default:
		for (i = 0; i <= ni_m_series_max_rtsi_channel; ++i) {
			if (input_select == NI_M_Series_RTSI_Clock(i)) {
				clock_source = NI_GPCT_RTSI_CLOCK_SRC_BITS(i);
				break;
			}
		}
		if (i <= ni_m_series_max_rtsi_channel)
			break;
		for (i = 0; i <= ni_m_series_max_pfi_channel; ++i) {
			if (input_select == NI_M_Series_PFI_Clock(i)) {
				clock_source = NI_GPCT_PFI_CLOCK_SRC_BITS(i);
				break;
			}
		}
		if (i <= ni_m_series_max_pfi_channel)
			break;
		BUG();
		break;
	}
	clock_source |= ni_tio_clock_src_modifiers(counter);
	return clock_source;
}