#include "plx9052.h"
#include "8255.h"
-//#define CBPCIMDAS_DEBUG
+/* #define CBPCIMDAS_DEBUG */
#undef CBPCIMDAS_DEBUG
/* Registers for the PCIM-DAS1602/16 */
-// sizes of io regions (bytes)
-#define BADR0_SIZE 2 //??
+/* sizes of io regions (bytes) */
+#define BADR0_SIZE 2 /* ?? */
#define BADR1_SIZE 4
#define BADR2_SIZE 6
#define BADR3_SIZE 16
#define BADR4_SIZE 4
-//DAC Offsets
+/* DAC Offsets */
#define ADC_TRIG 0
#define DAC0_OFFSET 2
#define DAC1_OFFSET 4
-//AI and Counter Constants
+/* AI and Counter Constants */
#define MUX_LIMITS 0
#define MAIN_CONN_DIO 1
#define ADC_STAT 2
struct cb_pcimdas_board {
const char *name;
unsigned short device_id;
- int ai_se_chans; // Inputs in single-ended mode
- int ai_diff_chans; // Inputs in differential mode
- int ai_bits; // analog input resolution
- int ai_speed; // fastest conversion period in ns
- int ao_nchan; // number of analog out channels
- int ao_bits; // analogue output resolution
- int has_ao_fifo; // analog output has fifo
- int ao_scan_speed; // analog output speed for 1602 series (for a scan, not conversion)
- int fifo_size; // number of samples fifo can hold
- int dio_bits; // number of dio bits
- int has_dio; // has DIO
+ int ai_se_chans; /* Inputs in single-ended mode */
+ int ai_diff_chans; /* Inputs in differential mode */
+ int ai_bits; /* analog input resolution */
+ int ai_speed; /* fastest conversion period in ns */
+ int ao_nchan; /* number of analog out channels */
+ int ao_bits; /* analogue output resolution */
+ int has_ao_fifo; /* analog output has fifo */
+ int ao_scan_speed; /* analog output speed for 1602 series (for a scan, not conversion) */
+ int fifo_size; /* number of samples fifo can hold */
+ int dio_bits; /* number of dio bits */
+ int has_dio; /* has DIO */
const struct comedi_lrange *ranges;
};
ai_se_chans:16,
ai_diff_chans:8,
ai_bits: 16,
- ai_speed:10000, //??
+ ai_speed:10000, /* ?? */
ao_nchan:2,
ao_bits: 12,
- has_ao_fifo:0, //??
+ has_ao_fifo:0, /* ?? */
ao_scan_speed:10000,
- //??
+ /* ?? */
fifo_size:1024,
dio_bits:24,
has_dio: 1,
-// ranges: &cb_pcimdas_ranges,
+/* ranges: &cb_pcimdas_ranges, */
},
};
MODULE_DEVICE_TABLE(pci, cb_pcimdas_pci_table);
-#define N_BOARDS 1 // Max number of boards supported
+#define N_BOARDS 1 /* Max number of boards supported */
/*
* Useful for shorthand access to the particular board structure
struct cb_pcimdas_private {
int data;
- // would be useful for a PCI device
+ /* would be useful for a PCI device */
struct pci_dev *pci_dev;
- //base addresses
+ /* base addresses */
unsigned long BADR0;
unsigned long BADR1;
unsigned long BADR2;
/* Used for AO readback */
unsigned int ao_readback[2];
- // Used for DIO
- unsigned short int port_a; // copy of BADR4+0
- unsigned short int port_b; // copy of BADR4+1
- unsigned short int port_c; // copy of BADR4+2
- unsigned short int dio_mode; // copy of BADR4+3
+ /* Used for DIO */
+ unsigned short int port_a; /* copy of BADR4+0 */
+ unsigned short int port_b; /* copy of BADR4+1 */
+ unsigned short int port_c; /* copy of BADR4+2 */
+ unsigned short int dio_mode; /* copy of BADR4+3 */
};
struct comedi_subdevice *s;
struct pci_dev *pcidev;
int index;
- //int i;
+ /* int i; */
printk("comedi%d: cb_pcimdas: ", dev->minor);
for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
pcidev != NULL;
pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) {
- // is it not a computer boards card?
+ /* is it not a computer boards card? */
if (pcidev->vendor != PCI_VENDOR_ID_COMPUTERBOARDS)
continue;
- // loop through cards supported by this driver
+ /* loop through cards supported by this driver */
for (index = 0; index < N_BOARDS; index++) {
if (cb_pcimdas_boards[index].device_id !=
pcidev->device)
continue;
- // was a particular bus/slot requested?
+ /* was a particular bus/slot requested? */
if (it->options[0] || it->options[1]) {
- // are we on the wrong bus/slot?
+ /* are we on the wrong bus/slot? */
if (pcidev->bus->number != it->options[0] ||
PCI_SLOT(pcidev->devfn) !=
it->options[1]) {
printk("Found %s on bus %i, slot %i\n", cb_pcimdas_boards[index].name,
pcidev->bus->number, PCI_SLOT(pcidev->devfn));
- // Warn about non-tested features
+ /* Warn about non-tested features */
switch (thisboard->device_id) {
case 0x56:
break;
printk("devpriv->BADR4 = 0x%lx\n", devpriv->BADR4);
#endif
-// Dont support IRQ yet
-// // get irq
-// if(comedi_request_irq(devpriv->pci_dev->irq, cb_pcimdas_interrupt, IRQF_SHARED, "cb_pcimdas", dev ))
-// {
-// printk(" unable to allocate irq %u\n", devpriv->pci_dev->irq);
-// return -EINVAL;
-// }
-// dev->irq = devpriv->pci_dev->irq;
+/* Dont support IRQ yet */
+/* get irq */
+/* if(comedi_request_irq(devpriv->pci_dev->irq, cb_pcimdas_interrupt, IRQF_SHARED, "cb_pcimdas", dev )) */
+/* { */
+/* printk(" unable to allocate irq %u\n", devpriv->pci_dev->irq); */
+/* return -EINVAL; */
+/* } */
+/* dev->irq = devpriv->pci_dev->irq; */
- //Initialize dev->board_name
+ /* Initialize dev->board_name */
dev->board_name = thisboard->name;
/*
return -ENOMEM;
s = dev->subdevices + 0;
- //dev->read_subdev=s;
- // analog input subdevice
+ /* dev->read_subdev=s; */
+ /* analog input subdevice */
s->type = COMEDI_SUBD_AI;
s->subdev_flags = SDF_READABLE | SDF_GROUND;
s->n_chan = thisboard->ai_se_chans;
s->maxdata = (1 << thisboard->ai_bits) - 1;
s->range_table = &range_unknown;
- s->len_chanlist = 1; // This is the maximum chanlist length that
- // the board can handle
+ s->len_chanlist = 1; /* This is the maximum chanlist length that */
+ /* the board can handle */
s->insn_read = cb_pcimdas_ai_rinsn;
s = dev->subdevices + 1;
- // analog output subdevice
+ /* analog output subdevice */
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = thisboard->ao_nchan;
s->maxdata = 1 << thisboard->ao_bits;
- s->range_table = &range_unknown; //ranges are hardware settable, but not software readable.
+ s->range_table = &range_unknown; /* ranges are hardware settable, but not software readable. */
s->insn_write = &cb_pcimdas_ao_winsn;
s->insn_read = &cb_pcimdas_ao_rinsn;
unsigned short chanlims;
int maxchans;
- // only support sw initiated reads from a single channel
+ /* only support sw initiated reads from a single channel */
- //check channel number
- if ((inb(devpriv->BADR3 + 2) & 0x20) == 0) //differential mode
+ /* check channel number */
+ if ((inb(devpriv->BADR3 + 2) & 0x20) == 0) /* differential mode */
maxchans = thisboard->ai_diff_chans;
else
maxchans = thisboard->ai_se_chans;
if (chan > (maxchans - 1))
- return -ETIMEDOUT; //*** Wrong error code. Fixme.
+ return -ETIMEDOUT; /* *** Wrong error code. Fixme. */
- //configure for sw initiated read
+ /* configure for sw initiated read */
d = inb(devpriv->BADR3 + 5);
- if ((d & 0x03) > 0) { //only reset if needed.
+ if ((d & 0x03) > 0) { /* only reset if needed. */
d = d & 0xfd;
outb(d, devpriv->BADR3 + 5);
}
- outb(0x01, devpriv->BADR3 + 6); //set bursting off, conversions on
- outb(0x00, devpriv->BADR3 + 7); //set range to 10V. UP/BP is controlled by a switch on the board
+ outb(0x01, devpriv->BADR3 + 6); /* set bursting off, conversions on */
+ outb(0x00, devpriv->BADR3 + 7); /* set range to 10V. UP/BP is controlled by a switch on the board */
- // write channel limits to multiplexer, set Low (bits 0-3) and High (bits 4-7) channels to chan.
+ /* write channel limits to multiplexer, set Low (bits 0-3) and High (bits 4-7) channels to chan. */
chanlims = chan | (chan << 4);
outb(chanlims, devpriv->BADR3 + 0);
/* trigger conversion */
outw(0, devpriv->BADR2 + 0);
-#define TIMEOUT 1000 //typically takes 5 loops on a lightly loaded Pentium 100MHz,
- //this is likely to be 100 loops on a 2GHz machine, so set 1000 as the limit.
+#define TIMEOUT 1000 /* typically takes 5 loops on a lightly loaded Pentium 100MHz, */
+ /* this is likely to be 100 loops on a 2GHz machine, so set 1000 as the limit. */
/* wait for conversion to end */
for (i = 0; i < TIMEOUT; i++) {
d = inw(devpriv->BADR2 + 0);
/* mangle the data as necessary */
- //d ^= 1<<(thisboard->ai_bits-1); // 16 bit data from ADC, so no mangle needed.
+ /* d ^= 1<<(thisboard->ai_bits-1); // 16 bit data from ADC, so no mangle needed. */
data[n] = d;
}
projects / firefly-linux-kernel-4.4.55.git / commitdiff