/*
- comedi/drivers/pcl816.c
-
- Author: Juan Grigera <juan@grigera.com.ar>
- based on pcl818 by Michal Dobes <dobes@tesnet.cz> and bits of pcl812
+ * pcl816.c
+ * Comedi driver for Advantech PCL-816 cards
+ *
+ * Author: Juan Grigera <juan@grigera.com.ar>
+ * based on pcl818 by Michal Dobes <dobes@tesnet.cz> and bits of pcl812
+ */
- hardware driver for Advantech cards:
- card: PCL-816, PCL814B
- driver: pcl816
-*/
/*
-Driver: pcl816
-Description: Advantech PCL-816 cards, PCL-814
-Author: Juan Grigera <juan@grigera.com.ar>
-Devices: [Advantech] PCL-816 (pcl816), PCL-814B (pcl814b)
-Status: works
-Updated: Tue, 2 Apr 2002 23:15:21 -0800
-
-PCL 816 and 814B have 16 SE/DIFF ADCs, 16 DACs, 16 DI and 16 DO.
-Differences are at resolution (16 vs 12 bits).
-
-The driver support AI command mode, other subdevices not written.
-
-Analog output and digital input and output are not supported.
-
-Configuration Options:
- [0] - IO Base
- [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
- [2] - DMA (0=disable, 1, 3)
- [3] - 0, 10=10MHz clock for 8254
- 1= 1MHz clock for 8254
-
-*/
+ * Driver: pcl816
+ * Description: Advantech PCL-816 cards, PCL-814
+ * Devices: [Advantech] PCL-816 (pcl816), PCL-814B (pcl814b)
+ * Author: Juan Grigera <juan@grigera.com.ar>
+ * Status: works
+ * Updated: Tue, 2 Apr 2002 23:15:21 -0800
+ *
+ * PCL 816 and 814B have 16 SE/DIFF ADCs, 16 DACs, 16 DI and 16 DO.
+ * Differences are at resolution (16 vs 12 bits).
+ *
+ * The driver support AI command mode, other subdevices not written.
+ *
+ * Analog output and digital input and output are not supported.
+ *
+ * Configuration Options:
+ * [0] - IO Base
+ * [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
+ * [2] - DMA (0=disable, 1, 3)
+ * [3] - 0, 10=10MHz clock for 8254
+ * 1= 1MHz clock for 8254
+ */
#include <linux/module.h>
#include <linux/gfp.h>
#define PCL816_MUX_REG 0x0b
#define PCL816_MUX_SCAN(_first, _last) (((_last) << 4) | (_first))
#define PCL816_CTRL_REG 0x0c
-#define PCL816_CTRL_DISABLE_TRIG (0 << 0)
-#define PCL816_CTRL_SOFT_TRIG (1 << 0)
-#define PCL816_CTRL_PACER_TRIG (1 << 1)
-#define PCL816_CTRL_EXT_TRIG (1 << 2)
-#define PCL816_CTRL_POE (1 << 3)
-#define PCL816_CTRL_DMAEN (1 << 4)
-#define PCL816_CTRL_INTEN (1 << 5)
-#define PCL816_CTRL_DMASRC_SLOT0 (0 << 6)
-#define PCL816_CTRL_DMASRC_SLOT1 (1 << 6)
-#define PCL816_CTRL_DMASRC_SLOT2 (2 << 6)
+#define PCL816_CTRL_SOFT_TRIG BIT(0)
+#define PCL816_CTRL_PACER_TRIG BIT(1)
+#define PCL816_CTRL_EXT_TRIG BIT(2)
+#define PCL816_CTRL_POE BIT(3)
+#define PCL816_CTRL_DMAEN BIT(4)
+#define PCL816_CTRL_INTEN BIT(5)
+#define PCL816_CTRL_DMASRC_SLOT(x) (((x) & 0x3) << 6)
#define PCL816_STATUS_REG 0x0d
#define PCL816_STATUS_NEXT_CHAN_MASK (0xf << 0)
-#define PCL816_STATUS_INTSRC_MASK (3 << 4)
-#define PCL816_STATUS_INTSRC_SLOT0 (0 << 4)
-#define PCL816_STATUS_INTSRC_SLOT1 (1 << 4)
-#define PCL816_STATUS_INTSRC_SLOT2 (2 << 4)
-#define PCL816_STATUS_INTSRC_DMA (3 << 4)
-#define PCL816_STATUS_INTACT (1 << 6)
-#define PCL816_STATUS_DRDY (1 << 7)
+#define PCL816_STATUS_INTSRC_SLOT(x) (((x) & 0x3) << 4)
+#define PCL816_STATUS_INTSRC_DMA PCL816_STATUS_INTSRC_SLOT(3)
+#define PCL816_STATUS_INTSRC_MASK PCL816_STATUS_INTSRC_SLOT(3)
+#define PCL816_STATUS_INTACT BIT(6)
+#define PCL816_STATUS_DRDY BIT(7)
#define MAGIC_DMA_WORD 0x5a5a
struct pcl816_board {
const char *name;
int ai_maxdata;
- int ao_maxdata;
int ai_chanlist;
};
{
.name = "pcl816",
.ai_maxdata = 0xffff,
- .ao_maxdata = 0xffff,
.ai_chanlist = 1024,
}, {
.name = "pcl814b",
.ai_maxdata = 0x3fff,
- .ao_maxdata = 0x3fff,
.ai_chanlist = 1024,
},
};
chansegment[0] = chanlist[0];
for (i = 1, seglen = 1; i < chanlen; i++, seglen++) {
/* we detect loop, this must by finish */
- if (chanlist[0] == chanlist[i])
+ if (chanlist[0] == chanlist[i])
break;
nowmustbechan =
(CR_CHAN(chansegment[i - 1]) + 1) % chanlen;
/* check whole chanlist */
for (i = 0, segpos = 0; i < chanlen; i++) {
- if (chanlist[i] != chansegment[i % seglen]) {
+ if (chanlist[i] != chansegment[i % seglen]) {
dev_dbg(dev->class_dev,
"bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
i, CR_CHAN(chansegment[i]),
comedi_8254_update_divisors(dev->pacer);
comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
- ctrl = PCL816_CTRL_INTEN | PCL816_CTRL_DMAEN | PCL816_CTRL_DMASRC_SLOT0;
+ ctrl = PCL816_CTRL_INTEN | PCL816_CTRL_DMAEN |
+ PCL816_CTRL_DMASRC_SLOT(0);
if (cmd->convert_src == TRIG_TIMER)
ctrl |= PCL816_CTRL_PACER_TRIG;
else /* TRIG_EXT */
if (!devpriv->ai_cmd_running)
return 0;
- outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG);
+ outb(0, dev->iobase + PCL816_CTRL_REG);
pcl816_ai_clear_eoc(dev);
comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
data[i] = pcl816_ai_get_sample(dev, s);
}
- outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG);
+ outb(0, dev->iobase + PCL816_CTRL_REG);
pcl816_ai_clear_eoc(dev);
return ret ? ret : insn->n;
static void pcl816_reset(struct comedi_device *dev)
{
- outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG);
+ outb(0, dev->iobase + PCL816_CTRL_REG);
pcl816_ai_set_chan_range(dev, 0, 0);
pcl816_ai_clear_eoc(dev);
s->cancel = pcl816_ai_cancel;
}
- /* Analog OUtput subdevice */
- s = &dev->subdevices[2];
+ /* Piggyback Slot1 subdevice */
+ s = &dev->subdevices[1];
s->type = COMEDI_SUBD_UNUSED;
-#if 0
- subdevs[1] = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
- s->n_chan = 1;
- s->maxdata = board->ao_maxdata;
- s->range_table = &range_pcl816;
-#endif
/* Digital Input subdevice */
s = &dev->subdevices[2];
Code Review / kvmfornfv.git / blobdiff