Data sheet: http://www.rtdusa.com/pdf/dm7520.pdf
Example source: http://www.rtdusa.com/examples/dm/dm7520.zip
Call them and ask for the register level manual.
- PCI chip: http://www.plxtech.com/products/io/pci9080
+ PCI chip: http://www.plxtech.com/products/io/pci9080
Notes:
This board is memory mapped. There is some IO stuff, but it isn't needed.
#define RTD_DMA_TIMEOUT 33000 /* 1 msec */
#else
/* by delaying, power and electrical noise are reduced somewhat */
-#define WAIT_QUIETLY udelay (1)
+#define WAIT_QUIETLY udelay(1)
#define RTD_ADC_TIMEOUT 2000 /* in usec */
#define RTD_DAC_TIMEOUT 2000 /* in usec */
#define RTD_DMA_TIMEOUT 1000 /* in usec */
/* Reset board */
#define RtdResetBoard(dev) \
- writel (0, devpriv->las0+LAS0_BOARD_RESET)
+ writel(0, devpriv->las0+LAS0_BOARD_RESET)
/* Reset channel gain table read pointer */
#define RtdResetCGT(dev) \
- writel (0, devpriv->las0+LAS0_CGT_RESET)
+ writel(0, devpriv->las0+LAS0_CGT_RESET)
/* Reset channel gain table read and write pointers */
#define RtdClearCGT(dev) \
- writel (0, devpriv->las0+LAS0_CGT_CLEAR)
+ writel(0, devpriv->las0+LAS0_CGT_CLEAR)
/* Reset channel gain table read and write pointers */
#define RtdEnableCGT(dev, v) \
- writel ((v > 0) ? 1 : 0, devpriv->las0+LAS0_CGT_ENABLE)
+ writel((v > 0) ? 1 : 0, devpriv->las0+LAS0_CGT_ENABLE)
/* Write channel gain table entry */
#define RtdWriteCGTable(dev, v) \
- writel (v, devpriv->las0+LAS0_CGT_WRITE)
+ writel(v, devpriv->las0+LAS0_CGT_WRITE)
/* Write Channel Gain Latch */
#define RtdWriteCGLatch(dev, v) \
- writel (v, devpriv->las0+LAS0_CGL_WRITE)
+ writel(v, devpriv->las0+LAS0_CGL_WRITE)
/* Reset ADC FIFO */
#define RtdAdcClearFifo(dev) \
- writel (0, devpriv->las0+LAS0_ADC_FIFO_CLEAR)
+ writel(0, devpriv->las0+LAS0_ADC_FIFO_CLEAR)
/* Set ADC start conversion source select (write only) */
#define RtdAdcConversionSource(dev, v) \
- writel (v, devpriv->las0+LAS0_ADC_CONVERSION)
+ writel(v, devpriv->las0+LAS0_ADC_CONVERSION)
/* Set burst start source select (write only) */
#define RtdBurstStartSource(dev, v) \
- writel (v, devpriv->las0+LAS0_BURST_START)
+ writel(v, devpriv->las0+LAS0_BURST_START)
/* Set Pacer start source select (write only) */
#define RtdPacerStartSource(dev, v) \
- writel (v, devpriv->las0+LAS0_PACER_START)
+ writel(v, devpriv->las0+LAS0_PACER_START)
/* Set Pacer stop source select (write only) */
#define RtdPacerStopSource(dev, v) \
- writel (v, devpriv->las0+LAS0_PACER_STOP)
+ writel(v, devpriv->las0+LAS0_PACER_STOP)
/* Set Pacer clock source select (write only) 0=external 1=internal */
#define RtdPacerClockSource(dev, v) \
- writel ((v > 0) ? 1 : 0, devpriv->las0+LAS0_PACER_SELECT)
+ writel((v > 0) ? 1 : 0, devpriv->las0+LAS0_PACER_SELECT)
/* Set sample counter source select (write only) */
#define RtdAdcSampleCounterSource(dev, v) \
- writel (v, devpriv->las0+LAS0_ADC_SCNT_SRC)
+ writel(v, devpriv->las0+LAS0_ADC_SCNT_SRC)
/* Set Pacer trigger mode select (write only) 0=single cycle, 1=repeat */
#define RtdPacerTriggerMode(dev, v) \
- writel ((v > 0) ? 1 : 0, devpriv->las0+LAS0_PACER_REPEAT)
+ writel((v > 0) ? 1 : 0, devpriv->las0+LAS0_PACER_REPEAT)
/* Set About counter stop enable (write only) */
#define RtdAboutStopEnable(dev, v) \
- writel ((v > 0) ? 1 : 0, devpriv->las0+LAS0_ACNT_STOP_ENABLE)
+ writel((v > 0) ? 1 : 0, devpriv->las0+LAS0_ACNT_STOP_ENABLE)
/* Set external trigger polarity (write only) 0=positive edge, 1=negative */
#define RtdTriggerPolarity(dev, v) \
- writel ((v > 0) ? 1 : 0, devpriv->las0+LAS0_ETRG_POLARITY)
+ writel((v > 0) ? 1 : 0, devpriv->las0+LAS0_ETRG_POLARITY)
/* Start single ADC conversion */
#define RtdAdcStart(dev) \
- writew (0, devpriv->las0+LAS0_ADC)
+ writew(0, devpriv->las0+LAS0_ADC)
/* Read one ADC data value (12bit (with sign extend) as 16bit) */
/* Note: matches what DMA would get. Actual value >> 3 */
#define RtdAdcFifoGet(dev) \
- readw (devpriv->las1+LAS1_ADC_FIFO)
+ readw(devpriv->las1+LAS1_ADC_FIFO)
/* Read two ADC data values (DOESNT WORK) */
#define RtdAdcFifoGet2(dev) \
- readl (devpriv->las1+LAS1_ADC_FIFO)
+ readl(devpriv->las1+LAS1_ADC_FIFO)
/* FIFO status */
#define RtdFifoStatus(dev) \
- readl (devpriv->las0+LAS0_ADC)
+ readl(devpriv->las0+LAS0_ADC)
/* pacer start/stop read=start, write=stop*/
#define RtdPacerStart(dev) \
- readl (devpriv->las0+LAS0_PACER)
+ readl(devpriv->las0+LAS0_PACER)
#define RtdPacerStop(dev) \
- writel (0, devpriv->las0+LAS0_PACER)
+ writel(0, devpriv->las0+LAS0_PACER)
/* Interrupt status */
#define RtdInterruptStatus(dev) \
- readw (devpriv->las0+LAS0_IT)
+ readw(devpriv->las0+LAS0_IT)
/* Interrupt mask */
#define RtdInterruptMask(dev, v) \
- writew ((devpriv->intMask = (v)), devpriv->las0+LAS0_IT)
+ writew((devpriv->intMask = (v)), devpriv->las0+LAS0_IT)
/* Interrupt status clear (only bits set in mask) */
#define RtdInterruptClear(dev) \
- readw (devpriv->las0+LAS0_CLEAR)
+ readw(devpriv->las0+LAS0_CLEAR)
/* Interrupt clear mask */
#define RtdInterruptClearMask(dev, v) \
- writew ((devpriv->intClearMask = (v)), devpriv->las0+LAS0_CLEAR)
+ writew((devpriv->intClearMask = (v)), devpriv->las0+LAS0_CLEAR)
/* Interrupt overrun status */
#define RtdInterruptOverrunStatus(dev) \
- readl (devpriv->las0+LAS0_OVERRUN)
+ readl(devpriv->las0+LAS0_OVERRUN)
/* Interrupt overrun clear */
#define RtdInterruptOverrunClear(dev) \
- writel (0, devpriv->las0+LAS0_OVERRUN)
+ writel(0, devpriv->las0+LAS0_OVERRUN)
/* Pacer counter, 24bit */
#define RtdPacerCount(dev) \
- readl (devpriv->las0+LAS0_PCLK)
+ readl(devpriv->las0+LAS0_PCLK)
#define RtdPacerCounter(dev, v) \
- writel ((v) & 0xffffff, devpriv->las0+LAS0_PCLK)
+ writel((v) & 0xffffff, devpriv->las0+LAS0_PCLK)
/* Burst counter, 10bit */
#define RtdBurstCount(dev) \
- readl (devpriv->las0+LAS0_BCLK)
+ readl(devpriv->las0+LAS0_BCLK)
#define RtdBurstCounter(dev, v) \
- writel ((v) & 0x3ff, devpriv->las0+LAS0_BCLK)
+ writel((v) & 0x3ff, devpriv->las0+LAS0_BCLK)
/* Delay counter, 16bit */
#define RtdDelayCount(dev) \
- readl (devpriv->las0+LAS0_DCLK)
+ readl(devpriv->las0+LAS0_DCLK)
#define RtdDelayCounter(dev, v) \
- writel ((v) & 0xffff, devpriv->las0+LAS0_DCLK)
+ writel((v) & 0xffff, devpriv->las0+LAS0_DCLK)
/* About counter, 16bit */
#define RtdAboutCount(dev) \
- readl (devpriv->las0+LAS0_ACNT)
+ readl(devpriv->las0+LAS0_ACNT)
#define RtdAboutCounter(dev, v) \
- writel ((v) & 0xffff, devpriv->las0+LAS0_ACNT)
+ writel((v) & 0xffff, devpriv->las0+LAS0_ACNT)
/* ADC sample counter, 10bit */
#define RtdAdcSampleCount(dev) \
- readl (devpriv->las0+LAS0_ADC_SCNT)
+ readl(devpriv->las0+LAS0_ADC_SCNT)
#define RtdAdcSampleCounter(dev, v) \
- writel ((v) & 0x3ff, devpriv->las0+LAS0_ADC_SCNT)
+ writel((v) & 0x3ff, devpriv->las0+LAS0_ADC_SCNT)
/* User Timer/Counter (8254) */
#define RtdUtcCounterGet(dev, n) \
- readb (devpriv->las0 \
- + ((n <= 0) ? LAS0_UTC0 : ((1 == n) ? LAS0_UTC1 : LAS0_UTC2)))
+ readb(devpriv->las0 \
+ + ((n <= 0) ? LAS0_UTC0 : ((1 == n) ? LAS0_UTC1 : LAS0_UTC2)))
#define RtdUtcCounterPut(dev, n, v) \
- writeb ((v) & 0xff, devpriv->las0 \
- + ((n <= 0) ? LAS0_UTC0 : ((1 == n) ? LAS0_UTC1 : LAS0_UTC2)))
+ writeb((v) & 0xff, devpriv->las0 \
+ + ((n <= 0) ? LAS0_UTC0 : ((1 == n) ? LAS0_UTC1 : LAS0_UTC2)))
/* Set UTC (8254) control byte */
#define RtdUtcCtrlPut(dev, n, v) \
- writeb (devpriv->utcCtrl[(n) & 3] = (((n) & 3) << 6) | ((v) & 0x3f), \
- devpriv->las0 + LAS0_UTC_CTRL)
+ writeb(devpriv->utcCtrl[(n) & 3] = (((n) & 3) << 6) | ((v) & 0x3f), \
+ devpriv->las0 + LAS0_UTC_CTRL)
/* Set UTCn clock source (write only) */
#define RtdUtcClockSource(dev, n, v) \
- writew (v, devpriv->las0 \
- + ((n <= 0) ? LAS0_UTC0_CLOCK : \
- ((1 == n) ? LAS0_UTC1_CLOCK : LAS0_UTC2_CLOCK)))
+ writew(v, devpriv->las0 \
+ + ((n <= 0) ? LAS0_UTC0_CLOCK : \
+ ((1 == n) ? LAS0_UTC1_CLOCK : LAS0_UTC2_CLOCK)))
/* Set UTCn gate source (write only) */
#define RtdUtcGateSource(dev, n, v) \
- writew (v, devpriv->las0 \
- + ((n <= 0) ? LAS0_UTC0_GATE : \
- ((1 == n) ? LAS0_UTC1_GATE : LAS0_UTC2_GATE)))
+ writew(v, devpriv->las0 \
+ + ((n <= 0) ? LAS0_UTC0_GATE : \
+ ((1 == n) ? LAS0_UTC1_GATE : LAS0_UTC2_GATE)))
/* User output N source select (write only) */
#define RtdUsrOutSource(dev, n, v) \
- writel (v, devpriv->las0+((n <= 0) ? LAS0_UOUT0_SELECT : LAS0_UOUT1_SELECT))
+ writel(v, devpriv->las0+((n <= 0) ? LAS0_UOUT0_SELECT : LAS0_UOUT1_SELECT))
/* Digital IO */
#define RtdDio0Read(dev) \
- (readw (devpriv->las0+LAS0_DIO0) & 0xff)
+ (readw(devpriv->las0+LAS0_DIO0) & 0xff)
#define RtdDio0Write(dev, v) \
- writew ((v) & 0xff, devpriv->las0+LAS0_DIO0)
+ writew((v) & 0xff, devpriv->las0+LAS0_DIO0)
#define RtdDio1Read(dev) \
- (readw (devpriv->las0+LAS0_DIO1) & 0xff)
+ (readw(devpriv->las0+LAS0_DIO1) & 0xff)
#define RtdDio1Write(dev, v) \
- writew ((v) & 0xff, devpriv->las0+LAS0_DIO1)
+ writew((v) & 0xff, devpriv->las0+LAS0_DIO1)
#define RtdDioStatusRead(dev) \
- (readw (devpriv->las0+LAS0_DIO_STATUS) & 0xff)
+ (readw(devpriv->las0+LAS0_DIO_STATUS) & 0xff)
#define RtdDioStatusWrite(dev, v) \
- writew ((devpriv->dioStatus = (v)), devpriv->las0+LAS0_DIO_STATUS)
+ writew((devpriv->dioStatus = (v)), devpriv->las0+LAS0_DIO_STATUS)
#define RtdDio0CtrlRead(dev) \
- (readw (devpriv->las0+LAS0_DIO0_CTRL) & 0xff)
+ (readw(devpriv->las0+LAS0_DIO0_CTRL) & 0xff)
#define RtdDio0CtrlWrite(dev, v) \
- writew ((v) & 0xff, devpriv->las0+LAS0_DIO0_CTRL)
+ writew((v) & 0xff, devpriv->las0+LAS0_DIO0_CTRL)
/* Digital to Analog converter */
/* Write one data value (sign + 12bit + marker bits) */
/* Note: matches what DMA would put. Actual value << 3 */
#define RtdDacFifoPut(dev, n, v) \
- writew ((v), devpriv->las1 +(((n) == 0) ? LAS1_DAC1_FIFO : LAS1_DAC2_FIFO))
+ writew((v), devpriv->las1 + (((n) == 0) ? LAS1_DAC1_FIFO : LAS1_DAC2_FIFO))
/* Start single DAC conversion */
#define RtdDacUpdate(dev, n) \
- writew (0, devpriv->las0 +(((n) == 0) ? LAS0_DAC1 : LAS0_DAC2))
+ writew(0, devpriv->las0 + (((n) == 0) ? LAS0_DAC1 : LAS0_DAC2))
/* Start single DAC conversion on both DACs */
#define RtdDacBothUpdate(dev) \
- writew (0, devpriv->las0+LAS0_DAC)
+ writew(0, devpriv->las0+LAS0_DAC)
/* Set DAC output type and range */
#define RtdDacRange(dev, n, v) \
- writew ((v) & 7, devpriv->las0 \
- +(((n) == 0) ? LAS0_DAC1_CTRL : LAS0_DAC2_CTRL))
+ writew((v) & 7, devpriv->las0 \
+ +(((n) == 0) ? LAS0_DAC1_CTRL : LAS0_DAC2_CTRL))
/* Reset DAC FIFO */
#define RtdDacClearFifo(dev, n) \
- writel (0, devpriv->las0+(((n) == 0) ? LAS0_DAC1_RESET : LAS0_DAC2_RESET))
+ writel(0, devpriv->las0+(((n) == 0) ? LAS0_DAC1_RESET : LAS0_DAC2_RESET))
/* Set source for DMA 0 (write only, shadow?) */
#define RtdDma0Source(dev, n) \
- writel ((n) & 0xf, devpriv->las0+LAS0_DMA0_SRC)
+ writel((n) & 0xf, devpriv->las0+LAS0_DMA0_SRC)
/* Set source for DMA 1 (write only, shadow?) */
#define RtdDma1Source(dev, n) \
- writel ((n) & 0xf, devpriv->las0+LAS0_DMA1_SRC)
+ writel((n) & 0xf, devpriv->las0+LAS0_DMA1_SRC)
/* Reset board state for DMA 0 */
#define RtdDma0Reset(dev) \
- writel (0, devpriv->las0+LAS0_DMA0_RESET)
+ writel(0, devpriv->las0+LAS0_DMA0_RESET)
/* Reset board state for DMA 1 */
#define RtdDma1Reset(dev) \
- writel (0, devpriv->las0+LAS0_DMA1_SRC)
+ writel(0, devpriv->las0+LAS0_DMA1_SRC)
/* PLX9080 interrupt mask and status */
#define RtdPlxInterruptRead(dev) \
- readl (devpriv->lcfg+LCFG_ITCSR)
+ readl(devpriv->lcfg+LCFG_ITCSR)
#define RtdPlxInterruptWrite(dev, v) \
- writel (v, devpriv->lcfg+LCFG_ITCSR)
+ writel(v, devpriv->lcfg+LCFG_ITCSR)
/* Set mode for DMA 0 */
#define RtdDma0Mode(dev, m) \
- writel ((m), devpriv->lcfg+LCFG_DMAMODE0)
+ writel((m), devpriv->lcfg+LCFG_DMAMODE0)
/* Set PCI address for DMA 0 */
#define RtdDma0PciAddr(dev, a) \
- writel ((a), devpriv->lcfg+LCFG_DMAPADR0)
+ writel((a), devpriv->lcfg+LCFG_DMAPADR0)
/* Set local address for DMA 0 */
#define RtdDma0LocalAddr(dev, a) \
- writel ((a), devpriv->lcfg+LCFG_DMALADR0)
+ writel((a), devpriv->lcfg+LCFG_DMALADR0)
/* Set byte count for DMA 0 */
#define RtdDma0Count(dev, c) \
- writel ((c), devpriv->lcfg+LCFG_DMASIZ0)
+ writel((c), devpriv->lcfg+LCFG_DMASIZ0)
/* Set next descriptor for DMA 0 */
#define RtdDma0Next(dev, a) \
- writel ((a), devpriv->lcfg+LCFG_DMADPR0)
+ writel((a), devpriv->lcfg+LCFG_DMADPR0)
/* Set mode for DMA 1 */
#define RtdDma1Mode(dev, m) \
- writel ((m), devpriv->lcfg+LCFG_DMAMODE1)
+ writel((m), devpriv->lcfg+LCFG_DMAMODE1)
/* Set PCI address for DMA 1 */
#define RtdDma1PciAddr(dev, a) \
- writel ((a), devpriv->lcfg+LCFG_DMAADR1)
+ writel((a), devpriv->lcfg+LCFG_DMAADR1)
/* Set local address for DMA 1 */
#define RtdDma1LocalAddr(dev, a) \
- writel ((a), devpriv->lcfg+LCFG_DMALADR1)
+ writel((a), devpriv->lcfg+LCFG_DMALADR1)
/* Set byte count for DMA 1 */
#define RtdDma1Count(dev, c) \
- writel ((c), devpriv->lcfg+LCFG_DMASIZ1)
+ writel((c), devpriv->lcfg+LCFG_DMASIZ1)
/* Set next descriptor for DMA 1 */
#define RtdDma1Next(dev, a) \
- writel ((a), devpriv->lcfg+LCFG_DMADPR1)
+ writel((a), devpriv->lcfg+LCFG_DMADPR1)
/* Set control for DMA 0 (write only, shadow?) */
#define RtdDma0Control(dev, n) \
- writeb (devpriv->dma0Control = (n), devpriv->lcfg+LCFG_DMACSR0)
+ writeb(devpriv->dma0Control = (n), devpriv->lcfg+LCFG_DMACSR0)
/* Get status for DMA 0 */
#define RtdDma0Status(dev) \
- readb (devpriv->lcfg+LCFG_DMACSR0)
+ readb(devpriv->lcfg+LCFG_DMACSR0)
/* Set control for DMA 1 (write only, shadow?) */
#define RtdDma1Control(dev, n) \
- writeb (devpriv->dma1Control = (n), devpriv->lcfg+LCFG_DMACSR1)
+ writeb(devpriv->dma1Control = (n), devpriv->lcfg+LCFG_DMACSR1)
/* Get status for DMA 1 */
#define RtdDma1Status(dev) \
- readb (devpriv->lcfg+LCFG_DMACSR1)
+ readb(devpriv->lcfg+LCFG_DMACSR1)
/*
* The struct comedi_driver structure tells the Comedi core module
int index;
#endif
- printk("comedi%d: rtd520 attaching.\n", dev->minor);
+ printk(KERN_INFO "comedi%d: rtd520 attaching.\n", dev->minor);
-#if defined (CONFIG_COMEDI_DEBUG) && defined (USE_DMA)
+#if defined(CONFIG_COMEDI_DEBUG) && defined(USE_DMA)
/* You can set this a load time: modprobe comedi comedi_debug=1 */
if (0 == comedi_debug) /* force DMA debug printks */
comedi_debug = 1;
}
if (!pcidev) {
if (it->options[0] && it->options[1]) {
- printk("No RTD card at bus=%d slot=%d.\n",
+ printk(KERN_INFO "No RTD card at bus=%d slot=%d.\n",
it->options[0], it->options[1]);
} else {
- printk("No RTD card found.\n");
+ printk(KERN_INFO "No RTD card found.\n");
}
return -EIO;
}
ret = comedi_pci_enable(pcidev, DRV_NAME);
if (ret < 0) {
- printk("Failed to enable PCI device and request regions.\n");
+ printk(KERN_INFO "Failed to enable PCI device and request regions.\n");
return ret;
}
devpriv->got_regions = 1;
devpriv->las1 = ioremap_nocache(physLas1, LAS1_PCISIZE);
devpriv->lcfg = ioremap_nocache(physLcfg, LCFG_PCISIZE);
- if (!devpriv->las0 || !devpriv->las1 || !devpriv->lcfg) {
+ if (!devpriv->las0 || !devpriv->las1 || !devpriv->lcfg)
return -ENOMEM;
- }
+
DPRINTK("%s: LAS0=%llx, LAS1=%llx, CFG=%llx.\n", dev->board_name,
(unsigned long long)physLas0, (unsigned long long)physLas1,
pci_read_config_byte(devpriv->pci_dev,
PCI_LATENCY_TIMER, &pci_latency);
if (pci_latency < 32) {
- printk("%s: PCI latency changed from %d to %d\n",
+ printk(KERN_INFO "%s: PCI latency changed from %d to %d\n",
dev->board_name, pci_latency, 32);
pci_write_config_byte(devpriv->pci_dev,
PCI_LATENCY_TIMER, 32);
* Allocate the subdevice structures. alloc_subdevice() is a
* convenient macro defined in comedidev.h.
*/
- if (alloc_subdevices(dev, 4) < 0) {
+ if (alloc_subdevices(dev, 4) < 0)
return -ENOMEM;
- }
+
s = dev->subdevices + 0;
dev->read_subdev = s;
SDF_READABLE | SDF_GROUND | SDF_COMMON | SDF_DIFF | SDF_CMD_READ;
s->n_chan = thisboard->aiChans;
s->maxdata = (1 << thisboard->aiBits) - 1;
- if (thisboard->aiMaxGain <= 32) {
+ if (thisboard->aiMaxGain <= 32)
s->range_table = &rtd_ai_7520_range;
- } else {
+ else
s->range_table = &rtd_ai_4520_range;
- }
+
s->len_chanlist = RTD_MAX_CHANLIST; /* devpriv->fifoLen */
s->insn_read = rtd_ai_rinsn;
s->do_cmd = rtd_ai_cmd;
printk("( irq=%u )", dev->irq);
ret = rtd520_probe_fifo_depth(dev);
- if (ret < 0) {
+ if (ret < 0)
return ret;
- }
+
devpriv->fifoLen = ret;
printk("( fifoLen=%d )", devpriv->fifoLen);
RtdDma0Mode(dev, DMA_MODE_BITS);
RtdDma0Source(dev, DMAS_ADFIFO_HALF_FULL); /* set DMA trigger source */
} else {
- printk("( no IRQ->no DMA )");
+ printk(KERN_INFO "( no IRQ->no DMA )");
}
#endif /* USE_DMA */
}
/* release all regions that were allocated */
- if (devpriv->las0) {
+ if (devpriv->las0)
iounmap(devpriv->las0);
- }
- if (devpriv->las1) {
+
+ if (devpriv->las1)
iounmap(devpriv->las1);
- }
- if (devpriv->lcfg) {
+
+ if (devpriv->lcfg)
iounmap(devpriv->lcfg);
- }
- if (devpriv->pci_dev) {
+
+ if (devpriv->pci_dev)
pci_dev_put(devpriv->pci_dev);
- }
+
return ret;
#endif
}
}
/* release all regions that were allocated */
- if (devpriv->las0) {
+ if (devpriv->las0)
iounmap(devpriv->las0);
- }
- if (devpriv->las1) {
+
+ if (devpriv->las1)
iounmap(devpriv->las1);
- }
- if (devpriv->lcfg) {
+
+ if (devpriv->lcfg)
iounmap(devpriv->lcfg);
- }
+
if (devpriv->pci_dev) {
- if (devpriv->got_regions) {
+ if (devpriv->got_regions)
comedi_pci_disable(devpriv->pci_dev);
- }
+
pci_dev_put(devpriv->pci_dev);
}
}
- printk("comedi%d: rtd520: removed.\n", dev->minor);
+ printk(KERN_INFO "comedi%d: rtd520: removed.\n", dev->minor);
return 0;
}
}
}
if (i == limit) {
- printk("\ncomedi: %s: failed to probe fifo size.\n", DRV_NAME);
+ printk(KERN_INFO "\ncomedi: %s: failed to probe fifo size.\n", DRV_NAME);
return -EIO;
}
RtdAdcClearFifo(dev);
if (fifo_size != 0x400 && fifo_size != 0x2000) {
printk
- ("\ncomedi: %s: unexpected fifo size of %i, expected 1024 or 8192.\n",
+ (KERN_INFO "\ncomedi: %s: unexpected fifo size of %i, expected 1024 or 8192.\n",
DRV_NAME, fifo_size);
return -EIO;
}
d = RtdAdcFifoGet(dev); /* get 2s comp value */
/*printk ("rtd520: Got 0x%x after %d usec\n", d, ii+1); */
d = d >> 3; /* low 3 bits are marker lines */
- if (CHAN_ARRAY_TEST(devpriv->chanBipolar, 0)) {
+ if (CHAN_ARRAY_TEST(devpriv->chanBipolar, 0))
data[n] = d + 2048; /* convert to comedi unsigned data */
- } else {
+ else
data[n] = d;
- }
}
/* return the number of samples read/written */
d = RtdAdcFifoGet(dev); /* get 2s comp value */
d = d >> 3; /* low 3 bits are marker lines */
- if (CHAN_ARRAY_TEST(devpriv->chanBipolar, s->async->cur_chan)) {
+ if (CHAN_ARRAY_TEST(devpriv->chanBipolar, s->async->cur_chan))
sample = d + 2048; /* convert to comedi unsigned data */
- } else {
+ else
sample = d;
- }
+
if (!comedi_buf_put(s->async, sample))
return -1;
}
d = d >> 3; /* low 3 bits are marker lines */
- if (CHAN_ARRAY_TEST(devpriv->chanBipolar, s->async->cur_chan)) {
+ if (CHAN_ARRAY_TEST(devpriv->chanBipolar, s->async->cur_chan))
sample = d + 2048; /* convert to comedi unsigned data */
- } else {
+ else
sample = d;
- }
+
if (!comedi_buf_put(s->async, sample))
return -1;
if (CHAN_ARRAY_TEST(devpriv->chanBipolar, s->async->cur_chan)) {
sample = (*dp >> 3) + 2048; /* convert to comedi unsigned data */
- } else {
+ else
sample = *dp >> 3; /* low 3 bits are marker lines */
- }
+
*dp++ = sample; /* put processed value back */
if (++s->async->cur_chan >= s->async->cmd.chanlist_len)
u16 fifoStatus;
struct comedi_subdevice *s = dev->subdevices + 0; /* analog in subdevice */
- if (!dev->attached) {
+ if (!dev->attached)
return IRQ_NONE;
- }
devpriv->intCount++; /* DEBUG statistics */
status = RtdInterruptStatus(dev);
/* if interrupt was not caused by our board, or handled above */
- if (0 == status) {
+ if (0 == status)
return IRQ_HANDLED;
- }
if (status & IRQM_ADC_ABOUT_CNT) { /* sample count -> read FIFO */
/* since the priority interrupt controller may have queued a sample
tmp = cmd->start_src;
cmd->start_src &= TRIG_NOW;
- if (!cmd->start_src || tmp != cmd->start_src) {
+ if (!cmd->start_src || tmp != cmd->start_src)
err++;
- }
tmp = cmd->scan_begin_src;
cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
- if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) {
+ if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
err++;
- }
+
tmp = cmd->convert_src;
cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
- if (!cmd->convert_src || tmp != cmd->convert_src) {
+ if (!cmd->convert_src || tmp != cmd->convert_src)
err++;
- }
+
tmp = cmd->scan_end_src;
cmd->scan_end_src &= TRIG_COUNT;
- if (!cmd->scan_end_src || tmp != cmd->scan_end_src) {
+ if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
err++;
- }
+
tmp = cmd->stop_src;
cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
- if (!cmd->stop_src || tmp != cmd->stop_src) {
+ if (!cmd->stop_src || tmp != cmd->stop_src)
err++;
- }
+
if (err)
return 1;
cmd->scan_begin_src != TRIG_EXT) {
err++;
}
- if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT) {
+ if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
err++;
- }
- if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) {
+
+ if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
err++;
- }
- if (err) {
+ if (err)
return 2;
- }
/* step 3: make sure arguments are trivially compatible */
}
}
- if (err) {
+ if (err)
return 3;
- }
+
/* step 4: fix up any arguments */
tmp = cmd->scan_begin_arg;
rtd_ns_to_timer(&cmd->scan_begin_arg,
cmd->flags & TRIG_ROUND_MASK);
- if (tmp != cmd->scan_begin_arg) {
+ if (tmp != cmd->scan_begin_arg)
err++;
- }
+
}
if (cmd->convert_src == TRIG_TIMER) {
tmp = cmd->convert_arg;
rtd_ns_to_timer(&cmd->convert_arg,
cmd->flags & TRIG_ROUND_MASK);
- if (tmp != cmd->convert_arg) {
+ if (tmp != cmd->convert_arg)
err++;
- }
+
if (cmd->scan_begin_src == TRIG_TIMER
&& (cmd->scan_begin_arg
< (cmd->convert_arg * cmd->scan_end_arg))) {
}
}
- if (err) {
+ if (err)
return 4;
- }
return 0;
}
/* VERIFY: comedi range and offset conversions */
if ((range > 1) /* bipolar */
- &&(data[i] < 2048)) {
+ && (data[i] < 2048)) {
/* offset and sign extend */
val = (((int)data[i]) - 2048) << 3;
} else { /* unipolor */
int i;
int chan = CR_CHAN(insn->chanspec);
- for (i = 0; i < insn->n; i++) {
+ for (i = 0; i < insn->n; i++)
data[i] = devpriv->aoValue[chan];
- }
+
return i;
}
projects / platform / kernel / linux-rpi.git / commitdiff