From: H Hartley Sweeten Date: Mon, 12 Oct 2015 18:01:32 +0000 (-0700) Subject: staging: comedi: adv_pci1710: tidy up control register and bits X-Git-Tag: v4.14-rc1~4420^2~727 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9fcce6e2d20b9569b3cb09dda132c8fbeec96072;p=platform%2Fkernel%2Flinux-rpi.git staging: comedi: adv_pci1710: tidy up control register and bits Rename the CamelCase and use the BIT macro to define the bits. Also, rename the associated CamelCase members of the private data. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c index e7a6dc5..0184667 100644 --- a/drivers/staging/comedi/drivers/adv_pci1710.c +++ b/drivers/staging/comedi/drivers/adv_pci1710.c @@ -43,7 +43,14 @@ #define PCI171X_STATUS_FF BIT(10) /* 1=FIFO is full, fatal error */ #define PCI171X_STATUS_FH BIT(9) /* 1=FIFO is half full */ #define PCI171X_STATUS_FE BIT(8) /* 1=FIFO is empty */ -#define PCI171x_CONTROL 6 /* W: control register */ +#define PCI171X_CTRL_REG 0x06 /* W: control register */ +#define PCI171X_CTRL_CNT0 BIT(6) /* 1=ext. clk, 0=int. 100kHz clk */ +#define PCI171X_CTRL_ONEFH BIT(5) /* 1=on FIFO half full, 0=on sample */ +#define PCI171X_CTRL_IRQEN BIT(4) /* 1=enable IRQ */ +#define PCI171X_CTRL_GATE BIT(3) /* 1=enable ext. trigger GATE (8254?) */ +#define PCI171X_CTRL_EXT BIT(2) /* 1=enable ext. trigger source */ +#define PCI171X_CTRL_PACER BIT(1) /* 1=enable int. 8254 trigger source */ +#define PCI171X_CTRL_SW BIT(0) /* 1=enable software trigger source */ #define PCI171x_CLRINT 8 /* W: clear interrupts request */ #define PCI171x_CLRFIFO 9 /* W: clear FIFO */ #define PCI171x_DA1 10 /* W: D/A register */ @@ -54,16 +61,6 @@ #define PCI171X_TIMER_BASE 0x18 -/* bits from control register (PCI171x_CONTROL) */ -#define Control_CNT0 0x0040 /* 1=CNT0 have external source, - * 0=have internal 100kHz source */ -#define Control_ONEFH 0x0020 /* 1=IRQ on FIFO is half full, 0=every sample */ -#define Control_IRQEN 0x0010 /* 1=enable IRQ */ -#define Control_GATE 0x0008 /* 1=enable external trigger GATE (8254?) */ -#define Control_EXT 0x0004 /* 1=external trigger source */ -#define Control_PACER 0x0002 /* 1=enable internal 8254 trigger source */ -#define Control_SW 0x0001 /* 1=enable software trigger source */ - #define PCI1720_DA0 0 /* W: D/A register 0 */ #define PCI1720_DA1 2 /* W: D/A register 1 */ #define PCI1720_DA2 4 /* W: D/A register 2 */ @@ -227,9 +224,9 @@ static const struct boardtype boardtypes[] = { struct pci1710_private { unsigned int max_samples; - unsigned int CntrlReg; /* Control register */ + unsigned int ctrl; /* control register value */ + unsigned int ctrl_ext; /* used to switch from TRIG_EXT to TRIG_xxx */ unsigned char ai_et; - unsigned int ai_et_CntrlReg; unsigned int ai_et_MuxVal; unsigned int act_chanlist[32]; /* list of scanned channel */ unsigned char saved_seglen; /* len of the non-repeating chanlist */ @@ -389,9 +386,9 @@ static int pci171x_ai_insn_read(struct comedi_device *dev, int ret = 0; int i; - devpriv->CntrlReg &= Control_CNT0; - devpriv->CntrlReg |= Control_SW; /* set software trigger */ - outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); + devpriv->ctrl &= PCI171X_CTRL_CNT0; + devpriv->ctrl |= PCI171X_CTRL_SW; /* set software trigger */ + outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG); outb(0, dev->iobase + PCI171x_CLRFIFO); outb(0, dev->iobase + PCI171x_CLRINT); @@ -503,10 +500,10 @@ static int pci171x_ai_cancel(struct comedi_device *dev, { struct pci1710_private *devpriv = dev->private; - devpriv->CntrlReg &= Control_CNT0; - devpriv->CntrlReg |= Control_SW; + devpriv->ctrl &= PCI171X_CTRL_CNT0; + devpriv->ctrl |= PCI171X_CTRL_SW; /* reset any operations */ - outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); + outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG); comedi_8254_pacer_enable(dev->pacer, 1, 2, false); outb(0, dev->iobase + PCI171x_CLRFIFO); outb(0, dev->iobase + PCI171x_CLRINT); @@ -620,14 +617,14 @@ static irqreturn_t interrupt_service_pci1710(int irq, void *d) if (devpriv->ai_et) { /* Switch from initial TRIG_EXT to TRIG_xxx. */ devpriv->ai_et = 0; - devpriv->CntrlReg &= Control_CNT0; - devpriv->CntrlReg |= Control_SW; /* set software trigger */ - outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); - devpriv->CntrlReg = devpriv->ai_et_CntrlReg; + devpriv->ctrl &= PCI171X_CTRL_CNT0; + devpriv->ctrl |= PCI171X_CTRL_SW; /* set software trigger */ + outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG); + devpriv->ctrl = devpriv->ctrl_ext; outb(0, dev->iobase + PCI171x_CLRFIFO); outb(0, dev->iobase + PCI171x_CLRINT); outw(devpriv->ai_et_MuxVal, dev->iobase + PCI171x_MUX); - outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); + outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG); comedi_8254_pacer_enable(dev->pacer, 1, 2, true); return IRQ_HANDLED; } @@ -653,30 +650,31 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) outb(0, dev->iobase + PCI171x_CLRFIFO); outb(0, dev->iobase + PCI171x_CLRINT); - devpriv->CntrlReg &= Control_CNT0; + devpriv->ctrl &= PCI171X_CTRL_CNT0; if ((cmd->flags & CMDF_WAKE_EOS) == 0) - devpriv->CntrlReg |= Control_ONEFH; + devpriv->ctrl |= PCI171X_CTRL_ONEFH; if (cmd->convert_src == TRIG_TIMER) { comedi_8254_update_divisors(dev->pacer); - devpriv->CntrlReg |= Control_PACER | Control_IRQEN; + devpriv->ctrl |= PCI171X_CTRL_PACER | PCI171X_CTRL_IRQEN; if (cmd->start_src == TRIG_EXT) { - devpriv->ai_et_CntrlReg = devpriv->CntrlReg; - devpriv->CntrlReg &= - ~(Control_PACER | Control_ONEFH | Control_GATE); - devpriv->CntrlReg |= Control_EXT; + devpriv->ctrl_ext = devpriv->ctrl; + devpriv->ctrl &= ~(PCI171X_CTRL_PACER | + PCI171X_CTRL_ONEFH | + PCI171X_CTRL_GATE); + devpriv->ctrl |= PCI171X_CTRL_EXT; devpriv->ai_et = 1; } else { /* TRIG_NOW */ devpriv->ai_et = 0; } - outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); + outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG); if (cmd->start_src == TRIG_NOW) comedi_8254_pacer_enable(dev->pacer, 1, 2, true); } else { /* TRIG_EXT */ - devpriv->CntrlReg |= Control_EXT | Control_IRQEN; - outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); + devpriv->ctrl |= PCI171X_CTRL_EXT | PCI171X_CTRL_IRQEN; + outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG); } return 0; @@ -765,18 +763,18 @@ static int pci171x_insn_counter_config(struct comedi_device *dev, case INSN_CONFIG_SET_CLOCK_SRC: switch (data[1]) { case 0: /* internal */ - devpriv->ai_et_CntrlReg &= ~Control_CNT0; + devpriv->ctrl_ext &= ~PCI171X_CTRL_CNT0; break; case 1: /* external */ - devpriv->ai_et_CntrlReg |= Control_CNT0; + devpriv->ctrl_ext |= PCI171X_CTRL_CNT0; break; default: return -EINVAL; } - outw(devpriv->ai_et_CntrlReg, dev->iobase + PCI171x_CONTROL); + outw(devpriv->ctrl_ext, dev->iobase + PCI171X_CTRL_REG); break; case INSN_CONFIG_GET_CLOCK_SRC: - if (devpriv->ai_et_CntrlReg & Control_CNT0) { + if (devpriv->ctrl_ext & PCI171X_CTRL_CNT0) { data[1] = 1; data[2] = 0; } else { @@ -797,9 +795,9 @@ static int pci171x_reset(struct comedi_device *dev) struct pci1710_private *devpriv = dev->private; /* Software trigger, CNT0=external */ - devpriv->CntrlReg = Control_SW | Control_CNT0; + devpriv->ctrl = PCI171X_CTRL_SW | PCI171X_CTRL_CNT0; /* reset any operations */ - outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); + outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG); outb(0, dev->iobase + PCI171x_CLRFIFO); /* clear FIFO */ outb(0, dev->iobase + PCI171x_CLRINT); /* clear INT request */ devpriv->da_ranges = 0;