staging: comedi: daqboard2000: use the comedi_device 'mmio' member

Use the new 'mmio' member in the comedi_device for the ioremap'ed
base address.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
index ceab88b62a20ccc84b72f60aff3ced0363265a8c..cd369cd40114e2c50ce057070f3b504c4cfe89eb 100644 (file)
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -274,19 +274,16 @@ struct daqboard2000_private {
        enum {
                card_daqboard_2000
        } card;
-       void __iomem *daq;
        void __iomem *plx;
        unsigned int ao_readback[2];
 };
 
 static void writeAcqScanListEntry(struct comedi_device *dev, u16 entry)
 {
-       struct daqboard2000_private *devpriv = dev->private;
-
        /* udelay(4); */
-       writew(entry & 0x00ff, devpriv->daq + acqScanListFIFO);
+       writew(entry & 0x00ff, dev->mmio + acqScanListFIFO);
        /* udelay(4); */
-       writew((entry >> 8) & 0x00ff, devpriv->daq + acqScanListFIFO);
+       writew((entry >> 8) & 0x00ff, dev->mmio + acqScanListFIFO);
 }
 
 static void setup_sampling(struct comedi_device *dev, int chan, int gain)
@@ -338,10 +335,9 @@ static int daqboard2000_ai_status(struct comedi_device *dev,
                                  struct comedi_insn *insn,
                                  unsigned long context)
 {
-       struct daqboard2000_private *devpriv = dev->private;
        unsigned int status;
 
-       status = readw(devpriv->daq + acqControl);
+       status = readw(dev->mmio + acqControl);
        if (status & context)
                return 0;
        return -EBUSY;
@@ -352,22 +348,21 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev,
                                     struct comedi_insn *insn,
                                     unsigned int *data)
 {
-       struct daqboard2000_private *devpriv = dev->private;
        int gain, chan;
        int ret;
        int i;
 
        writew(DAQBOARD2000_AcqResetScanListFifo |
               DAQBOARD2000_AcqResetResultsFifo |
-              DAQBOARD2000_AcqResetConfigPipe, devpriv->daq + acqControl);
+              DAQBOARD2000_AcqResetConfigPipe, dev->mmio + acqControl);
 
        /*
         * If pacer clock is not set to some high value (> 10 us), we
         * risk multiple samples to be put into the result FIFO.
         */
        /* 1 second, should be long enough */
-       writel(1000000, devpriv->daq + acqPacerClockDivLow);
-       writew(0, devpriv->daq + acqPacerClockDivHigh);
+       writel(1000000, dev->mmio + acqPacerClockDivLow);
+       writew(0, dev->mmio + acqPacerClockDivHigh);
 
        gain = CR_RANGE(insn->chanspec);
        chan = CR_CHAN(insn->chanspec);
@@ -379,15 +374,14 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev,
        for (i = 0; i < insn->n; i++) {
                setup_sampling(dev, chan, gain);
                /* Enable reading from the scanlist FIFO */
-               writew(DAQBOARD2000_SeqStartScanList,
-                      devpriv->daq + acqControl);
+               writew(DAQBOARD2000_SeqStartScanList, dev->mmio + acqControl);
 
                ret = comedi_timeout(dev, s, insn, daqboard2000_ai_status,
                                     DAQBOARD2000_AcqConfigPipeFull);
                if (ret)
                        return ret;
 
-               writew(DAQBOARD2000_AdcPacerEnable, devpriv->daq + acqControl);
+               writew(DAQBOARD2000_AdcPacerEnable, dev->mmio + acqControl);
 
                ret = comedi_timeout(dev, s, insn, daqboard2000_ai_status,
                                     DAQBOARD2000_AcqLogicScanning);
@@ -399,9 +393,9 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev,
                if (ret)
                        return ret;
 
-               data[i] = readw(devpriv->daq + acqResultsFIFO);
-               writew(DAQBOARD2000_AdcPacerDisable, devpriv->daq + acqControl);
-               writew(DAQBOARD2000_SeqStopScanList, devpriv->daq + acqControl);
+               data[i] = readw(dev->mmio + acqResultsFIFO);
+               writew(DAQBOARD2000_AdcPacerDisable, dev->mmio + acqControl);
+               writew(DAQBOARD2000_SeqStopScanList, dev->mmio + acqControl);
        }
 
        return i;
@@ -427,11 +421,10 @@ static int daqboard2000_ao_eoc(struct comedi_device *dev,
                               struct comedi_insn *insn,
                               unsigned long context)
 {
-       struct daqboard2000_private *devpriv = dev->private;
        unsigned int chan = CR_CHAN(insn->chanspec);
        unsigned int status;
 
-       status = readw(devpriv->daq + dacControl);
+       status = readw(dev->mmio + dacControl);
        if ((status & ((chan + 1) * 0x0010)) == 0)
                return 0;
        return -EBUSY;
@@ -453,11 +446,10 @@ static int daqboard2000_ao_insn_write(struct comedi_device *dev,
                 * OK, since it works OK without enabling the DAC's,
                 * let's keep it as simple as possible...
                 */
-               writew((chan + 2) * 0x0010 | 0x0001,
-                      devpriv->daq + dacControl);
+               writew((chan + 2) * 0x0010 | 0x0001, dev->mmio + dacControl);
                udelay(1000);
 #endif
-               writew(data[i], devpriv->daq + dacSetting(chan));
+               writew(data[i], dev->mmio + dacSetting(chan));
 
                ret = comedi_timeout(dev, s, insn, daqboard2000_ao_eoc, 0);
                if (ret)
@@ -469,8 +461,7 @@ static int daqboard2000_ao_insn_write(struct comedi_device *dev,
                 * Since we never enabled the DAC's, we don't need
                 * to disable it...
                 */
-               writew((chan + 2) * 0x0010 | 0x0000,
-                      devpriv->daq + dacControl);
+               writew((chan + 2) * 0x0010 | 0x0000, dev->mmio + dacControl);
                udelay(1000);
 #endif
        }
@@ -512,14 +503,13 @@ static void daqboard2000_pulseProgPin(struct comedi_device *dev)
 
 static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
 {
-       struct daqboard2000_private *devpriv = dev->private;
        int result = 0;
        int i;
        int cpld;
 
        /* timeout after 50 tries -> 5ms */
        for (i = 0; i < 50; i++) {
-               cpld = readw(devpriv->daq + 0x1000);
+               cpld = readw(dev->mmio + 0x1000);
                if ((cpld & mask) == mask) {
                        result = 1;
                        break;
@@ -532,12 +522,11 @@ static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
 
 static int daqboard2000_writeCPLD(struct comedi_device *dev, int data)
 {
-       struct daqboard2000_private *devpriv = dev->private;
        int result = 0;
 
        udelay(10);
-       writew(data, devpriv->daq + 0x1000);
-       if ((readw(devpriv->daq + 0x1000) & DAQBOARD2000_CPLD_INIT) ==
+       writew(data, dev->mmio + 0x1000);
+       if ((readw(dev->mmio + 0x1000) & DAQBOARD2000_CPLD_INIT) ==
            DAQBOARD2000_CPLD_INIT) {
                result = 1;
        }
@@ -593,23 +582,21 @@ static void daqboard2000_adcStopDmaTransfer(struct comedi_device *dev)
 
 static void daqboard2000_adcDisarm(struct comedi_device *dev)
 {
-       struct daqboard2000_private *devpriv = dev->private;
-
        /* Disable hardware triggers */
        udelay(2);
        writew(DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable,
-              devpriv->daq + trigControl);
+              dev->mmio + trigControl);
        udelay(2);
        writew(DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable,
-              devpriv->daq + trigControl);
+              dev->mmio + trigControl);
 
        /* Stop the scan list FIFO from loading the configuration pipe */
        udelay(2);
-       writew(DAQBOARD2000_SeqStopScanList, devpriv->daq + acqControl);
+       writew(DAQBOARD2000_SeqStopScanList, dev->mmio + acqControl);
 
        /* Stop the pacer clock */
        udelay(2);
-       writew(DAQBOARD2000_AdcPacerDisable, devpriv->daq + acqControl);
+       writew(DAQBOARD2000_AdcPacerDisable, dev->mmio + acqControl);
 
        /* Stop the input dma (abort channel 1) */
        daqboard2000_adcStopDmaTransfer(dev);
@@ -617,23 +604,22 @@ static void daqboard2000_adcDisarm(struct comedi_device *dev)
 
 static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
 {
-       struct daqboard2000_private *devpriv = dev->private;
        unsigned int val;
        int timeout;
 
        /*  Set the + reference dac value in the FPGA */
-       writew(0x80 | DAQBOARD2000_PosRefDacSelect, devpriv->daq + refDacs);
+       writew(0x80 | DAQBOARD2000_PosRefDacSelect, dev->mmio + refDacs);
        for (timeout = 0; timeout < 20; timeout++) {
-               val = readw(devpriv->daq + dacControl);
+               val = readw(dev->mmio + dacControl);
                if ((val & DAQBOARD2000_RefBusy) == 0)
                        break;
                udelay(2);
        }
 
        /*  Set the - reference dac value in the FPGA */
-       writew(0x80 | DAQBOARD2000_NegRefDacSelect, devpriv->daq + refDacs);
+       writew(0x80 | DAQBOARD2000_NegRefDacSelect, dev->mmio + refDacs);
        for (timeout = 0; timeout < 20; timeout++) {
-               val = readw(devpriv->daq + dacControl);
+               val = readw(dev->mmio + dacControl);
                if ((val & DAQBOARD2000_RefBusy) == 0)
                        break;
                udelay(2);
@@ -718,8 +704,8 @@ static int daqboard2000_auto_attach(struct comedi_device *dev,
                return result;
 
        devpriv->plx = pci_ioremap_bar(pcidev, 0);
-       devpriv->daq = pci_ioremap_bar(pcidev, 2);
-       if (!devpriv->plx || !devpriv->daq)
+       dev->mmio = pci_ioremap_bar(pcidev, 2);
+       if (!devpriv->plx || !dev->mmio)
                return -ENOMEM;
 
        result = comedi_alloc_subdevices(dev, 3);
@@ -758,7 +744,7 @@ static int daqboard2000_auto_attach(struct comedi_device *dev,
 
        s = &dev->subdevices[2];
        result = subdev_8255_init(dev, s, daqboard2000_8255_cb,
-                       (unsigned long)(devpriv->daq + dioP2ExpansionIO8Bit));
+                       (unsigned long)(dev->mmio + dioP2ExpansionIO8Bit));
        if (result)
                return result;
 
@@ -772,8 +758,8 @@ static void daqboard2000_detach(struct comedi_device *dev)
        if (dev->irq)
                free_irq(dev->irq, dev);
        if (devpriv) {
-               if (devpriv->daq)
-                       iounmap(devpriv->daq);
+               if (dev->mmio)
+                       iounmap(dev->mmio);
                if (devpriv->plx)
                        iounmap(devpriv->plx);
        }