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path: root/drivers/staging/comedi/drivers/adl_pci9118.c
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Diffstat (limited to 'drivers/staging/comedi/drivers/adl_pci9118.c')
-rw-r--r--drivers/staging/comedi/drivers/adl_pci9118.c92
1 files changed, 34 insertions, 58 deletions
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 4bdd9720e9eb..3cfa1756fa6a 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -571,12 +571,26 @@ static int setup_channel_list(struct comedi_device *dev,
return 1; /* we can serve this with scan logic */
}
+static int pci9118_ai_eoc(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned long context)
+{
+ unsigned int status;
+
+ status = inl(dev->iobase + PCI9118_ADSTAT);
+ if (status & AdStatus_ADrdy)
+ return 0;
+ return -EBUSY;
+}
+
static int pci9118_insn_read_ai(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
struct pci9118_private *devpriv = dev->private;
- int n, timeout;
+ int ret;
+ int n;
devpriv->AdControlReg = AdControl_Int & 0xff;
devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg;
@@ -597,19 +611,13 @@ static int pci9118_insn_read_ai(struct comedi_device *dev,
for (n = 0; n < insn->n; n++) {
outw(0, dev->iobase + PCI9118_SOFTTRG); /* start conversion */
udelay(2);
- timeout = 100;
- while (timeout--) {
- if (inl(dev->iobase + PCI9118_ADSTAT) & AdStatus_ADrdy)
- goto conv_finish;
- udelay(1);
- }
- comedi_error(dev, "A/D insn timeout");
- data[n] = 0;
- outl(0, dev->iobase + PCI9118_DELFIFO); /* flush FIFO */
- return -ETIME;
+ ret = comedi_timeout(dev, s, insn, pci9118_ai_eoc, 0);
+ if (ret) {
+ outl(0, dev->iobase + PCI9118_DELFIFO); /* flush FIFO */
+ return ret;
+ }
-conv_finish:
if (devpriv->ai16bits) {
data[n] =
(inl(dev->iobase +
@@ -911,8 +919,7 @@ static char pci9118_decode_error_status(struct comedi_device *dev,
}
if (m & devpriv->ai_maskharderr) {
s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
- pci9118_ai_cancel(dev, s);
- comedi_event(dev, s);
+ cfc_handle_events(dev, s);
return 1;
}
@@ -948,8 +955,6 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
struct pci9118_private *devpriv = dev->private;
unsigned short sampl;
- s->async->events = 0;
-
if (int_adstat & devpriv->ai_maskerr)
if (pci9118_decode_error_status(dev, s, int_adstat))
return;
@@ -965,8 +970,7 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
sampl & 0x000f,
devpriv->chanlist[s->async->cur_chan]);
s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
- pci9118_ai_cancel(dev, s);
- comedi_event(dev, s);
+ cfc_handle_events(dev, s);
return;
}
}
@@ -977,16 +981,14 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
/* one scan done */
s->async->cur_chan %= devpriv->ai_n_scanlen;
devpriv->ai_act_scan++;
- if (!(devpriv->ai_neverending))
- if (devpriv->ai_act_scan >= devpriv->ai_scans) {
- /* all data sampled */
- pci9118_ai_cancel(dev, s);
+ if (!devpriv->ai_neverending) {
+ /* all data sampled? */
+ if (devpriv->ai_act_scan >= devpriv->ai_scans)
s->async->events |= COMEDI_CB_EOA;
- }
+ }
}
- if (s->async->events)
- comedi_event(dev, s);
+ cfc_handle_events(dev, s);
}
static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
@@ -1001,16 +1003,14 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
if (int_amcc & MASTER_ABORT_INT) {
comedi_error(dev, "AMCC IRQ - MASTER DMA ABORT!");
s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
- pci9118_ai_cancel(dev, s);
- comedi_event(dev, s);
+ cfc_handle_events(dev, s);
return;
}
if (int_amcc & TARGET_ABORT_INT) {
comedi_error(dev, "AMCC IRQ - TARGET DMA ABORT!");
s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
- pci9118_ai_cancel(dev, s);
- comedi_event(dev, s);
+ cfc_handle_events(dev, s);
return;
}
if (int_adstat & devpriv->ai_maskerr)
@@ -1048,12 +1048,11 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
m = m - sampls; /* m= how many samples was transferred */
}
- if (!devpriv->ai_neverending)
- if (devpriv->ai_act_scan >= devpriv->ai_scans) {
- /* all data sampled */
- pci9118_ai_cancel(dev, s);
+ if (!devpriv->ai_neverending) {
+ /* all data sampled? */
+ if (devpriv->ai_act_scan >= devpriv->ai_scans)
s->async->events |= COMEDI_CB_EOA;
- }
+ }
if (devpriv->dma_doublebuf) { /* switch dma buffers */
devpriv->dma_actbuf = 1 - devpriv->dma_actbuf;
@@ -1066,7 +1065,7 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
interrupt_pci9118_ai_mode4_switch(dev);
}
- comedi_event(dev, s);
+ cfc_handle_events(dev, s);
}
static irqreturn_t interrupt_pci9118(int irq, void *d)
@@ -1936,28 +1935,6 @@ static struct pci_dev *pci9118_find_pci(struct comedi_device *dev,
return NULL;
}
-static void pci9118_report_attach(struct comedi_device *dev, unsigned int irq)
-{
- struct pci_dev *pcidev = comedi_to_pci_dev(dev);
- struct pci9118_private *devpriv = dev->private;
- char irqbuf[30];
- char muxbuf[30];
-
- if (irq)
- snprintf(irqbuf, sizeof(irqbuf), "irq %u%s", irq,
- (dev->irq ? "" : " UNAVAILABLE"));
- else
- snprintf(irqbuf, sizeof(irqbuf), "irq DISABLED");
- if (devpriv->usemux)
- snprintf(muxbuf, sizeof(muxbuf), "ext mux %u chans",
- devpriv->usemux);
- else
- snprintf(muxbuf, sizeof(muxbuf), "no ext mux");
- dev_info(dev->class_dev, "%s (pci %s, %s, %sbus master, %s) attached\n",
- dev->board_name, pci_name(pcidev), irqbuf,
- (devpriv->master ? "" : "no "), muxbuf);
-}
-
static int pci9118_common_attach(struct comedi_device *dev, int disable_irq,
int master, int ext_mux, int softsshdelay,
int hw_err_mask)
@@ -2113,7 +2090,6 @@ static int pci9118_common_attach(struct comedi_device *dev, int disable_irq,
break;
}
- pci9118_report_attach(dev, dev->irq);
return 0;
}