From: H Hartley Sweeten Date: Fri, 1 May 2015 21:59:22 +0000 (-0700) Subject: staging: comedi: ni_stc.h: tidy up AO_Trigger_Select_Register and bits X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f21844d33b6de37aa105de3e2e50dd944dd3d2b0;p=linux-beck.git staging: comedi: ni_stc.h: tidy up AO_Trigger_Select_Register and bits Rename the CamelCase. Use the BIT() macro to define the bits. Tidy up the ni_ao_cmd() by using a local var to mask/set the bits then programming 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 2522bab8ca13..0634babd2cf2 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -361,7 +361,7 @@ static const struct mio_regmap m_series_stc_write_regmap[] = { [NISTC_AI_TRIG_SEL_REG] = { 0x17e, 2 }, [NISTC_AI_DIV_LOADA_REG] = { 0x180, 4 }, [NISTC_AO_START_SEL_REG] = { 0x184, 2 }, - [AO_Trigger_Select_Register] = { 0x186, 2 }, + [NISTC_AO_TRIG_SEL_REG] = { 0x186, 2 }, [G_Autoincrement_Register(0)] = { 0x188, 2 }, [G_Autoincrement_Register(1)] = { 0x18a, 2 }, [AO_Mode_3_Register] = { 0x18c, 2 }, @@ -2902,6 +2902,7 @@ static int ni_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) int bits; int i; unsigned trigvar; + unsigned val; if (dev->irq == 0) { dev_err(dev->class_dev, "cannot run command without an irq\n"); @@ -2936,29 +2937,36 @@ static int ni_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) devpriv->ao_mode1 |= NISTC_AO_MODE1_TRIGGER_ONCE; } ni_stc_writew(dev, devpriv->ao_mode1, NISTC_AO_MODE1_REG); + + val = devpriv->ao_trigger_select; switch (cmd->start_src) { case TRIG_INT: case TRIG_NOW: - devpriv->ao_trigger_select &= - ~(AO_START1_Polarity | AO_START1_Select(-1)); - devpriv->ao_trigger_select |= AO_START1_Edge | AO_START1_Sync; - ni_stc_writew(dev, devpriv->ao_trigger_select, - AO_Trigger_Select_Register); + val &= ~(NISTC_AO_TRIG_START1_POLARITY | + NISTC_AO_TRIG_START1_SEL_MASK); + val |= NISTC_AO_TRIG_START1_EDGE | + NISTC_AO_TRIG_START1_SYNC; break; case TRIG_EXT: - devpriv->ao_trigger_select = - AO_START1_Select(CR_CHAN(cmd->start_arg) + 1); - if (cmd->start_arg & CR_INVERT) - devpriv->ao_trigger_select |= AO_START1_Polarity; /* 0=active high, 1=active low. see daq-stc 3-24 (p186) */ - if (cmd->start_arg & CR_EDGE) - devpriv->ao_trigger_select |= AO_START1_Edge; /* 0=edge detection disabled, 1=enabled */ + val = NISTC_AO_TRIG_START1_SEL(CR_CHAN(cmd->start_arg) + 1); + if (cmd->start_arg & CR_INVERT) { + /* 0=active high, 1=active low. see daq-stc 3-24 (p186) */ + val |= NISTC_AO_TRIG_START1_POLARITY; + } + if (cmd->start_arg & CR_EDGE) { + /* 0=edge detection disabled, 1=enabled */ + val |= NISTC_AO_TRIG_START1_EDGE; + } ni_stc_writew(dev, devpriv->ao_trigger_select, - AO_Trigger_Select_Register); + NISTC_AO_TRIG_SEL_REG); break; default: BUG(); break; } + devpriv->ao_trigger_select = val; + ni_stc_writew(dev, devpriv->ao_trigger_select, NISTC_AO_TRIG_SEL_REG); + devpriv->ao_mode3 &= ~AO_Trigger_Length; ni_stc_writew(dev, devpriv->ao_mode3, AO_Mode_3_Register); @@ -3211,7 +3219,7 @@ static int ni_ao_reset(struct comedi_device *dev, struct comedi_subdevice *s) ni_stc_writew(dev, devpriv->ao_mode3, AO_Mode_3_Register); devpriv->ao_trigger_select = 0; ni_stc_writew(dev, devpriv->ao_trigger_select, - AO_Trigger_Select_Register); + NISTC_AO_TRIG_SEL_REG); if (devpriv->is_6xxx) { unsigned immediate_bits = 0; unsigned i; diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index fc80b17430bf..385950430627 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -348,6 +348,17 @@ #define NISTC_AO_START_EDGE BIT(5) #define NISTC_AO_START_SEL(x) (((x) & 0x1f) << 0) +#define NISTC_AO_TRIG_SEL_REG 67 +#define NISTC_AO_TRIG_UI2_EXT_GATE_ENA BIT(15) +#define NISTC_AO_TRIG_DELAYED_START1 BIT(14) +#define NISTC_AO_TRIG_START1_POLARITY BIT(13) +#define NISTC_AO_TRIG_UI2_SRC_POLARITY BIT(12) +#define NISTC_AO_TRIG_UI2_SRC_SEL(x) (((x) & 0x1f) << 7) +#define NISTC_AO_TRIG_START1_SYNC BIT(6) +#define NISTC_AO_TRIG_START1_EDGE BIT(5) +#define NISTC_AO_TRIG_START1_SEL(x) (((x) & 0x1f) << 0) +#define NISTC_AO_TRIG_START1_SEL_MASK NISTC_AO_TRIG_START1_SEL(0x1f) + #define AI_Status_1_Register 2 #define Interrupt_A_St 0x8000 #define AI_FIFO_Full_St 0x4000 @@ -406,16 +417,6 @@ enum Joint_Status_2_Bits { #define AO_BC_Save_Registers 18 #define AO_UC_Save_Registers 20 -#define AO_Trigger_Select_Register 67 -#define AO_UI2_External_Gate_Enable _bit15 -#define AO_Delayed_START1 _bit14 -#define AO_START1_Polarity _bit13 -#define AO_UI2_Source_Polarity _bit12 -#define AO_UI2_Source_Select(x) (((x)&0x1f)<<7) -#define AO_START1_Sync _bit6 -#define AO_START1_Edge _bit5 -#define AO_START1_Select(x) (((x)&0x1f)<<0) - #define AO_Mode_3_Register 70 #define AO_UI2_Switch_Load_Next_TC _bit13 #define AO_UC_Switch_Load_Every_BC_TC _bit12