diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index 751cb6fd33138439fb0113082f87b834181761ed..2eae7054067fcdc6b4a56ebe8231f87749d554c6 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -133,22 +133,21 @@ #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 */ -#define DAC_MODE_UPDATE_BOTH 0x80 /* update both dacs */ - -#define DAC_RANGE(c, r) (((r) & 0x3) << (8 + 2 * ((c) & 0x1))) -#define DAC_RANGE_MASK(c) DAC_RANGE((c), 0x3) - -/* bits for 1602 series only */ -#define DAC_EMPTY 0x1 /* fifo empty, read, write clear */ -#define DAC_START 0x4 /* start/arm fifo operations */ -#define DAC_PACER_MASK 0x18 /* bits that set pacer source */ -#define DAC_PACER_INT 0x8 /* int. pacing */ -#define DAC_PACER_EXT_FALL 0x10 /* ext. pacing, falling edge */ -#define DAC_PACER_EXT_RISE 0x18 /* ext. pacing, rising edge */ - -#define DAC_CHAN_EN(c) BIT(5 + ((c) & 0x1)) +#define PCIDAS_AO_REG 0x08 /* dac control and status register */ +#define PCIDAS_AO_EMPTY BIT(0) /* fifo empty, write clear (1602) */ +#define PCIDAS_AO_DACEN BIT(1) /* dac enable */ +#define PCIDAS_AO_START BIT(2) /* start/arm fifo (1602) */ +#define PCIDAS_AO_PACER(x) (((x) & 0x3) << 3) /* (1602) */ +#define PCIDAS_AO_PACER_SW PCIDAS_AO_PACER(0) /* software pacer */ +#define PCIDAS_AO_PACER_INT PCIDAS_AO_PACER(1) /* int. pacer */ +#define PCIDAS_AO_PACER_EXTN PCIDAS_AO_PACER(2) /* ext. falling edge */ +#define PCIDAS_AO_PACER_EXTP PCIDAS_AO_PACER(3) /* ext. rising edge */ +#define PCIDAS_AO_PACER_MASK PCIDAS_AO_PACER(3) /* pacer source bits */ +#define PCIDAS_AO_CHAN_EN(c) BIT(5 + ((c) & 0x1)) +#define PCIDAS_AO_CHAN_MASK (PCIDAS_AO_CHAN_EN(0) | PCIDAS_AO_CHAN_EN(1)) +#define PCIDAS_AO_UPDATE_BOTH BIT(7) /* update both dacs */ +#define PCIDAS_AO_RANGE(c, r) (((r) & 0x3) << (8 + 2 * ((c) & 0x1))) +#define PCIDAS_AO_RANGE_MASK(c) PCIDAS_AO_RANGE((c), 0x3) /* * PCI BAR2 Register map (devpriv->pcibar2) @@ -316,7 +315,7 @@ struct cb_pcidas_private { /* bits to write to registers */ unsigned int ctrl; unsigned int s5933_intcsr_bits; - unsigned int ao_control_bits; + unsigned int ao_ctrl; /* fifo buffers */ unsigned short ai_buffer[AI_BUFFER_SIZE]; unsigned short ao_buffer[AO_BUFFER_SIZE]; @@ -432,10 +431,10 @@ static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, /* set channel and range */ spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ao_control_bits &= (~DAC_MODE_UPDATE_BOTH & - ~DAC_RANGE_MASK(chan)); - devpriv->ao_control_bits |= (DACEN | DAC_RANGE(chan, range)); - outw(devpriv->ao_control_bits, devpriv->pcibar1 + DAC_CSR); + devpriv->ao_ctrl &= ~(PCIDAS_AO_UPDATE_BOTH | + PCIDAS_AO_RANGE_MASK(chan)); + devpriv->ao_ctrl |= PCIDAS_AO_DACEN | PCIDAS_AO_RANGE(chan, range); + outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); spin_unlock_irqrestore(&dev->spinlock, flags); /* remember value for readback */ @@ -462,11 +461,11 @@ static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, /* set channel and range */ spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ao_control_bits &= (~DAC_CHAN_EN(0) & ~DAC_CHAN_EN(1) & - ~DAC_RANGE_MASK(chan) & ~DAC_PACER_MASK); - devpriv->ao_control_bits |= (DACEN | DAC_RANGE(chan, range) | - DAC_CHAN_EN(chan) | DAC_START); - outw(devpriv->ao_control_bits, devpriv->pcibar1 + DAC_CSR); + devpriv->ao_ctrl &= ~(PCIDAS_AO_CHAN_MASK | PCIDAS_AO_RANGE_MASK(chan) | + PCIDAS_AO_PACER_MASK); + devpriv->ao_ctrl |= PCIDAS_AO_DACEN | PCIDAS_AO_RANGE(chan, range) | + PCIDAS_AO_CHAN_EN(chan) | PCIDAS_AO_START; + outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); spin_unlock_irqrestore(&dev->spinlock, flags); /* remember value for readback */ @@ -1083,8 +1082,8 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev, devpriv->pcibar1 + PCIDAS_CTRL_REG); /* start dac */ - devpriv->ao_control_bits |= DAC_START | DACEN | DAC_EMPTY; - outw(devpriv->ao_control_bits, devpriv->pcibar1 + DAC_CSR); + devpriv->ao_ctrl |= PCIDAS_AO_START | PCIDAS_AO_DACEN | PCIDAS_AO_EMPTY; + outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); spin_unlock_irqrestore(&dev->spinlock, flags); @@ -1109,13 +1108,13 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, unsigned int range = CR_RANGE(cmd->chanlist[i]); /* enable channel */ - devpriv->ao_control_bits |= DAC_CHAN_EN(chan); + devpriv->ao_ctrl |= PCIDAS_AO_CHAN_EN(chan); /* set range */ - devpriv->ao_control_bits |= DAC_RANGE(chan, range); + devpriv->ao_ctrl |= PCIDAS_AO_RANGE(chan, range); } /* disable analog out before settings pacer source and count values */ - outw(devpriv->ao_control_bits, devpriv->pcibar1 + DAC_CSR); + outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); spin_unlock_irqrestore(&dev->spinlock, flags); /* clear fifo */ @@ -1131,10 +1130,10 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, spin_lock_irqsave(&dev->spinlock, flags); switch (cmd->scan_begin_src) { case TRIG_TIMER: - devpriv->ao_control_bits |= DAC_PACER_INT; + devpriv->ao_ctrl |= PCIDAS_AO_PACER_INT; break; case TRIG_EXT: - devpriv->ao_control_bits |= DAC_PACER_EXT_RISE; + devpriv->ao_ctrl |= PCIDAS_AO_PACER_EXTP; break; default: spin_unlock_irqrestore(&dev->spinlock, flags); @@ -1161,8 +1160,8 @@ static int cb_pcidas_ao_cancel(struct comedi_device *dev, outw(devpriv->ctrl, devpriv->pcibar1 + PCIDAS_CTRL_REG); /* disable output */ - devpriv->ao_control_bits &= ~DACEN & ~DAC_PACER_MASK; - outw(devpriv->ao_control_bits, devpriv->pcibar1 + DAC_CSR); + devpriv->ao_ctrl &= ~(PCIDAS_AO_DACEN | PCIDAS_AO_PACER_MASK); + outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); spin_unlock_irqrestore(&dev->spinlock, flags); return 0; @@ -1183,7 +1182,7 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status) outw(devpriv->ctrl | PCIDAS_CTRL_DAEMI, devpriv->pcibar1 + PCIDAS_CTRL_REG); spin_unlock_irqrestore(&dev->spinlock, flags); - if (inw(devpriv->pcibar4 + DAC_CSR) & DAC_EMPTY) { + if (inw(devpriv->pcibar4 + PCIDAS_AO_REG) & PCIDAS_AO_EMPTY) { if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg) { async->events |= COMEDI_CB_EOA;