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// SPDX-License-Identifier: GPL-2.0+
/*
* addi_apci_1516.c
* Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
* Project manager: Eric Stolz
*
* ADDI-DATA GmbH
* Dieselstrasse 3
* D-77833 Ottersweier
* Tel: +19(0)7223/9493-0
* Fax: +49(0)7223/9493-92
* http://www.addi-data.com
* info@addi-data.com
*/
#include <linux/module.h>
#include <linux/comedi/comedi_pci.h>
#include "addi_watchdog.h"
/*
* PCI bar 1 I/O Register map - Digital input/output
*/
#define APCI1516_DI_REG 0x00
#define APCI1516_DO_REG 0x04
/*
* PCI bar 2 I/O Register map - Watchdog (APCI-1516 and APCI-2016)
*/
#define APCI1516_WDOG_REG 0x00
enum apci1516_boardid {
BOARD_APCI1016,
BOARD_APCI1516,
BOARD_APCI2016,
};
struct apci1516_boardinfo {
const char *name;
int di_nchan;
int do_nchan;
int has_wdog;
};
static const struct apci1516_boardinfo apci1516_boardtypes[] = {
[BOARD_APCI1016] = {
.name = "apci1016",
.di_nchan = 16,
},
[BOARD_APCI1516] = {
.name = "apci1516",
.di_nchan = 8,
.do_nchan = 8,
.has_wdog = 1,
},
[BOARD_APCI2016] = {
.name = "apci2016",
.do_nchan = 16,
.has_wdog = 1,
},
};
struct apci1516_private {
unsigned long wdog_iobase;
};
static int apci1516_di_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
data[1] = inw(dev->iobase + APCI1516_DI_REG);
return insn->n;
}
static int apci1516_do_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
s->state = inw(dev->iobase + APCI1516_DO_REG);
if (comedi_dio_update_state(s, data))
outw(s->state, dev->iobase + APCI1516_DO_REG);
data[1] = s->state;
return insn->n;
}
static int apci1516_reset(struct comedi_device *dev)
{
const struct apci1516_boardinfo *board = dev->board_ptr;
struct apci1516_private *devpriv = dev->private;
if (!board->has_wdog)
return 0;
outw(0x0, dev->iobase + APCI1516_DO_REG);
addi_watchdog_reset(devpriv->wdog_iobase);
return 0;
}
static int apci1516_auto_attach(struct comedi_device *dev,
unsigned long context)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
const struct apci1516_boardinfo *board = NULL;
struct apci1516_private *devpriv;
struct comedi_subdevice *s;
int ret;
if (context < ARRAY_SIZE(apci1516_boardtypes))
board = &apci1516_boardtypes[context];
if (!board)
return -ENODEV;
dev->board_ptr = board;
dev->board_name = board->name;
devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
if (!devpriv)
return -ENOMEM;
ret = comedi_pci_enable(dev);
if (ret)
return ret;
dev->iobase = pci_resource_start(pcidev, 1);
devpriv->wdog_iobase = pci_resource_start(pcidev, 2);
ret = comedi_alloc_subdevices(dev, 3);
if (ret)
return ret;
/* Initialize the digital input subdevice */
s = &dev->subdevices[0];
if (board->di_nchan) {
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->n_chan = board->di_nchan;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = apci1516_di_insn_bits;
} else {
s->type = COMEDI_SUBD_UNUSED;
}
/* Initialize the digital output subdevice */
s = &dev->subdevices[1];
if (board->do_nchan) {
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = board->do_nchan;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = apci1516_do_insn_bits;
} else {
s->type = COMEDI_SUBD_UNUSED;
}
/* Initialize the watchdog subdevice */
s = &dev->subdevices[2];
if (board->has_wdog) {
ret = addi_watchdog_init(s, devpriv->wdog_iobase);
if (ret)
return ret;
} else {
s->type = COMEDI_SUBD_UNUSED;
}
apci1516_reset(dev);
return 0;
}
static void apci1516_detach(struct comedi_device *dev)
{
if (dev->iobase)
apci1516_reset(dev);
comedi_pci_detach(dev);
}
static struct comedi_driver apci1516_driver = {
.driver_name = "addi_apci_1516",
.module = THIS_MODULE,
.auto_attach = apci1516_auto_attach,
.detach = apci1516_detach,
};
static int apci1516_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
return comedi_pci_auto_config(dev, &apci1516_driver, id->driver_data);
}
static const struct pci_device_id apci1516_pci_table[] = {
{ PCI_VDEVICE(ADDIDATA, 0x1000), BOARD_APCI1016 },
{ PCI_VDEVICE(ADDIDATA, 0x1001), BOARD_APCI1516 },
{ PCI_VDEVICE(ADDIDATA, 0x1002), BOARD_APCI2016 },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, apci1516_pci_table);
static struct pci_driver apci1516_pci_driver = {
.name = "addi_apci_1516",
.id_table = apci1516_pci_table,
.probe = apci1516_pci_probe,
.remove = comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(apci1516_driver, apci1516_pci_driver);
MODULE_DESCRIPTION("ADDI-DATA APCI-1016/1516/2016, 16 channel DIO boards");
MODULE_AUTHOR("Comedi https://www.comedi.org");
MODULE_LICENSE("GPL");
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