From 21b6476af98672f8c784a40817793fe17504f978 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 13 Oct 2015 17:47:42 -0700 Subject: [PATCH] staging: comedi: cb_pcidas: tidy up calibration register Rename this register and its bit defines so they have namespace associated with the driver. Use the BIT macro to define the bits. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/cb_pcidas.c | 56 +++++++++++----------- 1 file changed, 28 insertions(+), 28 deletions(-) diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index 423a2e1fc307..751cb6fd3313 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -125,13 +125,13 @@ #define PCIDAS_TRIG_BURSTE BIT(5) /* burst mode enable */ #define PCIDAS_TRIG_CLR BIT(7) /* clear external trigger */ -#define CALIBRATION_REG 6 /* CALIBRATION register */ -#define SELECT_8800_BIT 0x100 /* select 8800 caldac */ -#define SELECT_TRIMPOT_BIT 0x200 /* select ad7376 trim pot */ -#define SELECT_DAC08_BIT 0x400 /* select dac08 caldac */ -#define CAL_SRC_BITS(x) (((x) & 0x7) << 11) -#define CAL_EN_BIT 0x4000 /* calibration source enable */ -#define SERIAL_DATA_IN_BIT 0x8000 /* serial data bit going to caldac */ +#define PCIDAS_CALIB_REG 0x06 /* CALIBRATION register */ +#define PCIDAS_CALIB_8800_SEL BIT(8) /* select 8800 caldac */ +#define PCIDAS_CALIB_TRIM_SEL BIT(9) /* select ad7376 trim pot */ +#define PCIDAS_CALIB_DAC08_SEL BIT(10) /* select dac08 caldac */ +#define PCIDAS_CALIB_SRC(x) (((x) & 0x7) << 11) +#define PCIDAS_CALIB_EN BIT(14) /* calibration source enable */ +#define PCIDAS_CALIB_DATA BIT(15) /* serial data bit going to caldac */ #define DAC_CSR 0x8 /* dac control and status register */ #define DACEN 0x02 /* dac enable */ @@ -327,7 +327,7 @@ static inline unsigned int cal_enable_bits(struct comedi_device *dev) { struct cb_pcidas_private *devpriv = dev->private; - return CAL_EN_BIT | CAL_SRC_BITS(devpriv->calibration_source); + return PCIDAS_CALIB_EN | PCIDAS_CALIB_SRC(devpriv->calibration_source); } static int cb_pcidas_ai_eoc(struct comedi_device *dev, @@ -359,10 +359,10 @@ static int cb_pcidas_ai_rinsn(struct comedi_device *dev, /* enable calibration input if appropriate */ if (insn->chanspec & CR_ALT_SOURCE) { outw(cal_enable_bits(dev), - devpriv->pcibar1 + CALIBRATION_REG); + devpriv->pcibar1 + PCIDAS_CALIB_REG); chan = 0; } else { - outw(0, devpriv->pcibar1 + CALIBRATION_REG); + outw(0, devpriv->pcibar1 + PCIDAS_CALIB_REG); } /* set mux limits and gain */ @@ -545,11 +545,11 @@ static void write_calibration_bitstream(struct comedi_device *dev, for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { if (bitstream & bit) - register_bits |= SERIAL_DATA_IN_BIT; + register_bits |= PCIDAS_CALIB_DATA; else - register_bits &= ~SERIAL_DATA_IN_BIT; + register_bits &= ~PCIDAS_CALIB_DATA; udelay(write_delay); - outw(register_bits, devpriv->pcibar1 + CALIBRATION_REG); + outw(register_bits, devpriv->pcibar1 + PCIDAS_CALIB_REG); } } @@ -565,10 +565,10 @@ static void caldac_8800_write(struct comedi_device *dev, bitstream_length); udelay(caldac_8800_udelay); - outw(cal_enable_bits(dev) | SELECT_8800_BIT, - devpriv->pcibar1 + CALIBRATION_REG); + outw(cal_enable_bits(dev) | PCIDAS_CALIB_8800_SEL, + devpriv->pcibar1 + PCIDAS_CALIB_REG); udelay(caldac_8800_udelay); - outw(cal_enable_bits(dev), devpriv->pcibar1 + CALIBRATION_REG); + outw(cal_enable_bits(dev), devpriv->pcibar1 + PCIDAS_CALIB_REG); } static int cb_pcidas_caldac_insn_write(struct comedi_device *dev, @@ -599,12 +599,12 @@ static void dac08_write(struct comedi_device *dev, unsigned int value) value |= cal_enable_bits(dev); /* latch the new value into the caldac */ - outw(value, devpriv->pcibar1 + CALIBRATION_REG); + outw(value, devpriv->pcibar1 + PCIDAS_CALIB_REG); udelay(1); - outw(value | SELECT_DAC08_BIT, - devpriv->pcibar1 + CALIBRATION_REG); + outw(value | PCIDAS_CALIB_DAC08_SEL, + devpriv->pcibar1 + PCIDAS_CALIB_REG); udelay(1); - outw(value, devpriv->pcibar1 + CALIBRATION_REG); + outw(value, devpriv->pcibar1 + PCIDAS_CALIB_REG); udelay(1); } @@ -635,15 +635,15 @@ static int trimpot_7376_write(struct comedi_device *dev, uint8_t value) unsigned int register_bits; static const int ad7376_udelay = 1; - register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT; + register_bits = cal_enable_bits(dev) | PCIDAS_CALIB_TRIM_SEL; udelay(ad7376_udelay); - outw(register_bits, devpriv->pcibar1 + CALIBRATION_REG); + outw(register_bits, devpriv->pcibar1 + PCIDAS_CALIB_REG); write_calibration_bitstream(dev, register_bits, bitstream, bitstream_length); udelay(ad7376_udelay); - outw(cal_enable_bits(dev), devpriv->pcibar1 + CALIBRATION_REG); + outw(cal_enable_bits(dev), devpriv->pcibar1 + PCIDAS_CALIB_REG); return 0; } @@ -660,15 +660,15 @@ static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel, unsigned int register_bits; static const int ad8402_udelay = 1; - register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT; + register_bits = cal_enable_bits(dev) | PCIDAS_CALIB_TRIM_SEL; udelay(ad8402_udelay); - outw(register_bits, devpriv->pcibar1 + CALIBRATION_REG); + outw(register_bits, devpriv->pcibar1 + PCIDAS_CALIB_REG); write_calibration_bitstream(dev, register_bits, bitstream, bitstream_length); udelay(ad8402_udelay); - outw(cal_enable_bits(dev), devpriv->pcibar1 + CALIBRATION_REG); + outw(cal_enable_bits(dev), devpriv->pcibar1 + PCIDAS_CALIB_REG); return 0; } @@ -858,8 +858,8 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, unsigned int bits; unsigned long flags; - /* make sure CAL_EN_BIT is disabled */ - outw(0, devpriv->pcibar1 + CALIBRATION_REG); + /* make sure PCIDAS_CALIB_EN is disabled */ + outw(0, devpriv->pcibar1 + PCIDAS_CALIB_REG); /* initialize before settings pacer source and count values */ outw(PCIDAS_TRIG_SEL_NONE, devpriv->pcibar1 + PCIDAS_TRIG_REG); /* clear fifo */ -- 2.30.2