diff options
Diffstat (limited to 'drivers/comedi/drivers/addi_apci_2200.c')
| -rw-r--r-- | drivers/comedi/drivers/addi_apci_2200.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/drivers/comedi/drivers/addi_apci_2200.c b/drivers/comedi/drivers/addi_apci_2200.c new file mode 100644 index 000000000000..4c5aee784bd9 --- /dev/null +++ b/drivers/comedi/drivers/addi_apci_2200.c @@ -0,0 +1,143 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * addi_apci_2200.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 "../comedi_pci.h" +#include "addi_watchdog.h" + +/* + * I/O Register Map + */ +#define APCI2200_DI_REG 0x00 +#define APCI2200_DO_REG 0x04 +#define APCI2200_WDOG_REG 0x08 + +static int apci2200_di_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + data[1] = inw(dev->iobase + APCI2200_DI_REG); + + return insn->n; +} + +static int apci2200_do_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + s->state = inw(dev->iobase + APCI2200_DO_REG); + + if (comedi_dio_update_state(s, data)) + outw(s->state, dev->iobase + APCI2200_DO_REG); + + data[1] = s->state; + + return insn->n; +} + +static int apci2200_reset(struct comedi_device *dev) +{ + outw(0x0, dev->iobase + APCI2200_DO_REG); + + addi_watchdog_reset(dev->iobase + APCI2200_WDOG_REG); + + return 0; +} + +static int apci2200_auto_attach(struct comedi_device *dev, + unsigned long context_unused) +{ + struct pci_dev *pcidev = comedi_to_pci_dev(dev); + struct comedi_subdevice *s; + int ret; + + ret = comedi_pci_enable(dev); + if (ret) + return ret; + + dev->iobase = pci_resource_start(pcidev, 1); + + ret = comedi_alloc_subdevices(dev, 3); + if (ret) + return ret; + + /* Initialize the digital input subdevice */ + s = &dev->subdevices[0]; + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->n_chan = 8; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = apci2200_di_insn_bits; + + /* Initialize the digital output subdevice */ + s = &dev->subdevices[1]; + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = 16; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = apci2200_do_insn_bits; + + /* Initialize the watchdog subdevice */ + s = &dev->subdevices[2]; + ret = addi_watchdog_init(s, dev->iobase + APCI2200_WDOG_REG); + if (ret) + return ret; + + apci2200_reset(dev); + return 0; +} + +static void apci2200_detach(struct comedi_device *dev) +{ + if (dev->iobase) + apci2200_reset(dev); + comedi_pci_detach(dev); +} + +static struct comedi_driver apci2200_driver = { + .driver_name = "addi_apci_2200", + .module = THIS_MODULE, + .auto_attach = apci2200_auto_attach, + .detach = apci2200_detach, +}; + +static int apci2200_pci_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + return comedi_pci_auto_config(dev, &apci2200_driver, id->driver_data); +} + +static const struct pci_device_id apci2200_pci_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1005) }, + { 0 } +}; +MODULE_DEVICE_TABLE(pci, apci2200_pci_table); + +static struct pci_driver apci2200_pci_driver = { + .name = "addi_apci_2200", + .id_table = apci2200_pci_table, + .probe = apci2200_pci_probe, + .remove = comedi_pci_auto_unconfig, +}; +module_comedi_pci_driver(apci2200_driver, apci2200_pci_driver); + +MODULE_DESCRIPTION("ADDI-DATA APCI-2200 Relay board, optically isolated"); +MODULE_AUTHOR("Comedi https://www.comedi.org"); +MODULE_LICENSE("GPL"); |