From: H Hartley Sweeten Date: Fri, 1 May 2015 21:59:16 +0000 (-0700) Subject: staging: comedi: ni_stc.h: tidy up AI_Output_Control_Register and bits X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=aa9d73ba831eef18624cb7b8288987b3bfd4dac8;p=linux-beck.git staging: comedi: ni_stc.h: tidy up AI_Output_Control_Register and bits Rename the CamelCase. Use the BIT() macro to define the bits. Tidy up the programming of this register un ni_ai_reset() by using a local variable to set the common bits then writing the register in the common code path. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index fcb8362fda80..20557b5be996 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -355,7 +355,7 @@ static const struct mio_regmap m_series_stc_write_regmap[] = { [NISTC_IO_BIDIR_PIN_REG] = { 0x172, 2 }, [NISTC_RTSI_TRIG_DIR_REG] = { 0x174, 2 }, [NISTC_INT_CTRL_REG] = { 0x176, 2 }, - [AI_Output_Control_Register] = { 0x178, 2 }, + [NISTC_AI_OUT_CTRL_REG] = { 0x178, 2 }, [Analog_Trigger_Etc_Register] = { 0x17a, 2 }, [AI_START_STOP_Select_Register] = { 0x17c, 2 }, [AI_Trigger_Select_Register] = { 0x17e, 2 }, @@ -1608,6 +1608,7 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev) static int ni_ai_reset(struct comedi_device *dev, struct comedi_subdevice *s) { struct ni_private *devpriv = dev->private; + unsigned ai_out_ctrl; ni_release_ai_mite_channel(dev); /* ai configuration */ @@ -1633,65 +1634,45 @@ static int ni_ai_reset(struct comedi_device *dev, struct comedi_subdevice *s) ni_stc_writew(dev, 0, NISTC_AI_MODE2_REG); /* generate FIFO interrupts on non-empty */ ni_stc_writew(dev, (0 << 6) | 0x0000, AI_Mode_3_Register); + + ai_out_ctrl = NISTC_AI_OUT_CTRL_SCAN_IN_PROG_SEL(3) | + NISTC_AI_OUT_CTRL_EXTMUX_CLK_SEL(0) | + NISTC_AI_OUT_CTRL_LOCALMUX_CLK_SEL(2) | + NISTC_AI_OUT_CTRL_SC_TC_SEL(3); if (devpriv->is_611x) { ni_stc_writew(dev, AI_SHIFTIN_Pulse_Width | AI_SOC_Polarity | AI_LOCALMUX_CLK_Pulse_Width, AI_Personal_Register); - ni_stc_writew(dev, - AI_SCAN_IN_PROG_Output_Select(3) | - AI_EXTMUX_CLK_Output_Select(0) | - AI_LOCALMUX_CLK_Output_Select(2) | - AI_SC_TC_Output_Select(3) | - AI_CONVERT_Output_Select - (AI_CONVERT_Output_Enable_High), - AI_Output_Control_Register); + ai_out_ctrl |= NISTC_AI_OUT_CTRL_CONVERT_HIGH; } else if (devpriv->is_6143) { ni_stc_writew(dev, AI_SHIFTIN_Pulse_Width | AI_SOC_Polarity | AI_LOCALMUX_CLK_Pulse_Width, AI_Personal_Register); - ni_stc_writew(dev, - AI_SCAN_IN_PROG_Output_Select(3) | - AI_EXTMUX_CLK_Output_Select(0) | - AI_LOCALMUX_CLK_Output_Select(2) | - AI_SC_TC_Output_Select(3) | - AI_CONVERT_Output_Select - (AI_CONVERT_Output_Enable_Low), - AI_Output_Control_Register); + ai_out_ctrl |= NISTC_AI_OUT_CTRL_CONVERT_LOW; } else { - unsigned ai_output_control_bits; - ni_stc_writew(dev, AI_SHIFTIN_Pulse_Width | AI_SOC_Polarity | AI_CONVERT_Pulse_Width | AI_LOCALMUX_CLK_Pulse_Width, AI_Personal_Register); - ai_output_control_bits = - AI_SCAN_IN_PROG_Output_Select(3) | - AI_EXTMUX_CLK_Output_Select(0) | - AI_LOCALMUX_CLK_Output_Select(2) | - AI_SC_TC_Output_Select(3); if (devpriv->is_622x) - ai_output_control_bits |= - AI_CONVERT_Output_Select - (AI_CONVERT_Output_Enable_High); + ai_out_ctrl |= NISTC_AI_OUT_CTRL_CONVERT_HIGH; else - ai_output_control_bits |= - AI_CONVERT_Output_Select - (AI_CONVERT_Output_Enable_Low); - ni_stc_writew(dev, ai_output_control_bits, - AI_Output_Control_Register); + ai_out_ctrl |= NISTC_AI_OUT_CTRL_CONVERT_LOW; } + ni_stc_writew(dev, ai_out_ctrl, NISTC_AI_OUT_CTRL_REG); + /* the following registers should not be changed, because there * are no backup registers in devpriv. If you want to change * any of these, add a backup register and other appropriate code: * NISTC_AI_MODE1_REG * AI_Mode_3_Register * AI_Personal_Register - * AI_Output_Control_Register + * NISTC_AI_OUT_CTRL_REG */ /* clear interrupts */ diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index 5004691e7e88..69156afa3098 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -295,6 +295,18 @@ #define NISTC_INT_CTRL_3PIN_INT BIT(1) #define NISTC_INT_CTRL_INT_POL BIT(0) +#define NISTC_AI_OUT_CTRL_REG 60 +#define NISTC_AI_OUT_CTRL_START_SEL BIT(10) +#define NISTC_AI_OUT_CTRL_SCAN_IN_PROG_SEL(x) (((x) & 0x3) << 8) +#define NISTC_AI_OUT_CTRL_EXTMUX_CLK_SEL(x) (((x) & 0x3) << 6) +#define NISTC_AI_OUT_CTRL_LOCALMUX_CLK_SEL(x) (((x) & 0x3) << 4) +#define NISTC_AI_OUT_CTRL_SC_TC_SEL(x) (((x) & 0x3) << 2) +#define NISTC_AI_OUT_CTRL_CONVERT_SEL(x) (((x) & 0x3) << 0) +#define NISTC_AI_OUT_CTRL_CONVERT_HIGH_Z NISTC_AI_OUT_CTRL_CONVERT_SEL(0) +#define NISTC_AI_OUT_CTRL_CONVERT_GND NISTC_AI_OUT_CTRL_CONVERT_SEL(1) +#define NISTC_AI_OUT_CTRL_CONVERT_LOW NISTC_AI_OUT_CTRL_CONVERT_SEL(2) +#define NISTC_AI_OUT_CTRL_CONVERT_HIGH NISTC_AI_OUT_CTRL_CONVERT_SEL(3) + #define AI_Status_1_Register 2 #define Interrupt_A_St 0x8000 #define AI_FIFO_Full_St 0x4000 @@ -353,24 +365,6 @@ enum Joint_Status_2_Bits { #define AO_BC_Save_Registers 18 #define AO_UC_Save_Registers 20 -#define AI_Output_Control_Register 60 -#define AI_START_Output_Select _bit10 -#define AI_SCAN_IN_PROG_Output_Select(x) (((x) & 0x3) << 8) -#define AI_EXTMUX_CLK_Output_Select(x) (((x) & 0x3) << 6) -#define AI_LOCALMUX_CLK_Output_Select(x) ((x)<<4) -#define AI_SC_TC_Output_Select(x) ((x)<<2) -enum ai_convert_output_selection { - AI_CONVERT_Output_High_Z = 0, - AI_CONVERT_Output_Ground = 1, - AI_CONVERT_Output_Enable_Low = 2, - AI_CONVERT_Output_Enable_High = 3 -}; -static unsigned AI_CONVERT_Output_Select(enum ai_convert_output_selection - selection) -{ - return selection & 0x3; -} - #define AI_START_STOP_Select_Register 62 #define AI_START_Polarity _bit15 #define AI_STOP_Polarity _bit14