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/*
* COMEDI driver for the ADLINK PCI-723x/743x series boards.
* Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com>
*
* Based on the adl_pci7230 driver written by:
* David Fernandez <dfcastelao@gmail.com>
* and the adl_pci7432 driver written by:
* Michel Lachaine <mike@mikelachaine.ca>
*
* COMEDI - Linux Control and Measurement Device Interface
* Copyright (C) 2000 David A. Schleef <ds@schleef.org>
*/
/*
* Driver: adl_pci7x3x
* Description: 32/64-Channel Isolated Digital I/O Boards
* Devices: [ADLink] PCI-7230 (adl_pci7230), PCI-7233 (adl_pci7233),
* PCI-7234 (adl_pci7234), PCI-7432 (adl_pci7432), PCI-7433 (adl_pci7433),
* PCI-7434 (adl_pci7434)
* Author: H Hartley Sweeten <hsweeten@visionengravers.com>
* Updated: Thu, 02 Aug 2012 14:27:46 -0700
* Status: untested
*
* One or two subdevices are setup by this driver depending on
* the number of digital inputs and/or outputs provided by the
* board. Each subdevice has a maximum of 32 channels.
*
* PCI-7230 - 2 subdevices: 0 - 16 input, 1 - 16 output
* PCI-7233 - 1 subdevice: 0 - 32 input
* PCI-7234 - 1 subdevice: 0 - 32 output
* PCI-7432 - 2 subdevices: 0 - 32 input, 1 - 32 output
* PCI-7433 - 2 subdevices: 0 - 32 input, 1 - 32 input
* PCI-7434 - 2 subdevices: 0 - 32 output, 1 - 32 output
*
* The PCI-7230, PCI-7432 and PCI-7433 boards also support external
* interrupt signals on digital input channels 0 and 1. The PCI-7233
* has dual-interrupt sources for change-of-state (COS) on any 16
* digital input channels of LSB and for COS on any 16 digital input
* lines of MSB. Interrupts are not currently supported by this
* driver.
*
* Configuration Options: not applicable, uses comedi PCI auto config
*/
#include <linux/module.h>
#include "../comedi_pci.h"
/*
* Register I/O map (32-bit access only)
*/
#define PCI7X3X_DIO_REG 0x00
#define PCI743X_DIO_REG 0x04
enum apci1516_boardid {
BOARD_PCI7230,
BOARD_PCI7233,
BOARD_PCI7234,
BOARD_PCI7432,
BOARD_PCI7433,
BOARD_PCI7434,
};
struct adl_pci7x3x_boardinfo {
const char *name;
int nsubdevs;
int di_nchan;
int do_nchan;
};
static const struct adl_pci7x3x_boardinfo adl_pci7x3x_boards[] = {
[BOARD_PCI7230] = {
.name = "adl_pci7230",
.nsubdevs = 2,
.di_nchan = 16,
.do_nchan = 16,
},
[BOARD_PCI7233] = {
.name = "adl_pci7233",
.nsubdevs = 1,
.di_nchan = 32,
},
[BOARD_PCI7234] = {
.name = "adl_pci7234",
.nsubdevs = 1,
.do_nchan = 32,
},
[BOARD_PCI7432] = {
.name = "adl_pci7432",
.nsubdevs = 2,
.di_nchan = 32,
.do_nchan = 32,
},
[BOARD_PCI7433] = {
.name = "adl_pci7433",
.nsubdevs = 2,
.di_nchan = 64,
},
[BOARD_PCI7434] = {
.name = "adl_pci7434",
.nsubdevs = 2,
.do_nchan = 64,
}
};
static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned long reg = (unsigned long)s->private;
if (comedi_dio_update_state(s, data)) {
unsigned int val = s->state;
if (s->n_chan == 16) {
/*
* It seems the PCI-7230 needs the 16-bit DO state
* to be shifted left by 16 bits before being written
* to the 32-bit register. Set the value in both
* halves of the register to be sure.
*/
val |= val << 16;
}
outl(val, dev->iobase + reg);
}
data[1] = s->state;
return insn->n;
}
static int adl_pci7x3x_di_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned long reg = (unsigned long)s->private;
data[1] = inl(dev->iobase + reg);
return insn->n;
}
static int adl_pci7x3x_auto_attach(struct comedi_device *dev,
unsigned long context)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
const struct adl_pci7x3x_boardinfo *board = NULL;
struct comedi_subdevice *s;
int subdev;
int nchan;
int ret;
if (context < ARRAY_SIZE(adl_pci7x3x_boards))
board = &adl_pci7x3x_boards[context];
if (!board)
return -ENODEV;
dev->board_ptr = board;
dev->board_name = board->name;
ret = comedi_pci_enable(dev);
if (ret)
return ret;
dev->iobase = pci_resource_start(pcidev, 2);
ret = comedi_alloc_subdevices(dev, board->nsubdevs);
if (ret)
return ret;
subdev = 0;
if (board->di_nchan) {
nchan = min(board->di_nchan, 32);
s = &dev->subdevices[subdev];
/* Isolated digital inputs 0 to 15/31 */
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->n_chan = nchan;
s->maxdata = 1;
s->insn_bits = adl_pci7x3x_di_insn_bits;
s->range_table = &range_digital;
s->private = (void *)PCI7X3X_DIO_REG;
subdev++;
nchan = board->di_nchan - nchan;
if (nchan) {
s = &dev->subdevices[subdev];
/* Isolated digital inputs 32 to 63 */
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->n_chan = nchan;
s->maxdata = 1;
s->insn_bits = adl_pci7x3x_di_insn_bits;
s->range_table = &range_digital;
s->private = (void *)PCI743X_DIO_REG;
subdev++;
}
}
if (board->do_nchan) {
nchan = min(board->do_nchan, 32);
s = &dev->subdevices[subdev];
/* Isolated digital outputs 0 to 15/31 */
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = nchan;
s->maxdata = 1;
s->insn_bits = adl_pci7x3x_do_insn_bits;
s->range_table = &range_digital;
s->private = (void *)PCI7X3X_DIO_REG;
subdev++;
nchan = board->do_nchan - nchan;
if (nchan) {
s = &dev->subdevices[subdev];
/* Isolated digital outputs 32 to 63 */
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = nchan;
s->maxdata = 1;
s->insn_bits = adl_pci7x3x_do_insn_bits;
s->range_table = &range_digital;
s->private = (void *)PCI743X_DIO_REG;
subdev++;
}
}
return 0;
}
static struct comedi_driver adl_pci7x3x_driver = {
.driver_name = "adl_pci7x3x",
.module = THIS_MODULE,
.auto_attach = adl_pci7x3x_auto_attach,
.detach = comedi_pci_detach,
};
static int adl_pci7x3x_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
return comedi_pci_auto_config(dev, &adl_pci7x3x_driver,
id->driver_data);
}
static const struct pci_device_id adl_pci7x3x_pci_table[] = {
{ PCI_VDEVICE(ADLINK, 0x7230), BOARD_PCI7230 },
{ PCI_VDEVICE(ADLINK, 0x7233), BOARD_PCI7233 },
{ PCI_VDEVICE(ADLINK, 0x7234), BOARD_PCI7234 },
{ PCI_VDEVICE(ADLINK, 0x7432), BOARD_PCI7432 },
{ PCI_VDEVICE(ADLINK, 0x7433), BOARD_PCI7433 },
{ PCI_VDEVICE(ADLINK, 0x7434), BOARD_PCI7434 },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, adl_pci7x3x_pci_table);
static struct pci_driver adl_pci7x3x_pci_driver = {
.name = "adl_pci7x3x",
.id_table = adl_pci7x3x_pci_table,
.probe = adl_pci7x3x_pci_probe,
.remove = comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(adl_pci7x3x_driver, adl_pci7x3x_pci_driver);
MODULE_DESCRIPTION("ADLINK PCI-723x/743x Isolated Digital I/O boards");
MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
MODULE_LICENSE("GPL");
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