| /* |
| |
| comedi/drivers/aio_iiro_16.c |
| |
| Driver for Access I/O Products PC-104 AIO-IIRO-16 Digital I/O board |
| Copyright (C) 2006 C&C Technologies, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| */ |
| |
| /* |
| |
| Driver: aio_iiro_16 |
| Description: Access I/O Products PC-104 IIRO16 Relay And Isolated Input Board |
| Author: Zachary Ware <zach.ware@cctechnol.com> |
| Devices: |
| [Access I/O] PC-104 AIO12-8 |
| Status: experimental |
| |
| Configuration Options: |
| [0] - I/O port base address |
| |
| */ |
| |
| #include <linux/module.h> |
| #include "../comedidev.h" |
| |
| #define AIO_IIRO_16_SIZE 0x08 |
| #define AIO_IIRO_16_RELAY_0_7 0x00 |
| #define AIO_IIRO_16_INPUT_0_7 0x01 |
| #define AIO_IIRO_16_IRQ 0x02 |
| #define AIO_IIRO_16_RELAY_8_15 0x04 |
| #define AIO_IIRO_16_INPUT_8_15 0x05 |
| |
| static int aio_iiro_16_dio_insn_bits_write(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| if (comedi_dio_update_state(s, data)) { |
| outb(s->state & 0xff, dev->iobase + AIO_IIRO_16_RELAY_0_7); |
| outb((s->state >> 8) & 0xff, |
| dev->iobase + AIO_IIRO_16_RELAY_8_15); |
| } |
| |
| data[1] = s->state; |
| |
| return insn->n; |
| } |
| |
| static int aio_iiro_16_dio_insn_bits_read(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| data[1] = 0; |
| data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_0_7); |
| data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_8_15) << 8; |
| |
| return insn->n; |
| } |
| |
| static int aio_iiro_16_attach(struct comedi_device *dev, |
| struct comedi_devconfig *it) |
| { |
| struct comedi_subdevice *s; |
| int ret; |
| |
| ret = comedi_request_region(dev, it->options[0], AIO_IIRO_16_SIZE); |
| if (ret) |
| return ret; |
| |
| ret = comedi_alloc_subdevices(dev, 2); |
| if (ret) |
| return ret; |
| |
| s = &dev->subdevices[0]; |
| s->type = COMEDI_SUBD_DIO; |
| s->subdev_flags = SDF_WRITABLE; |
| s->n_chan = 16; |
| s->maxdata = 1; |
| s->range_table = &range_digital; |
| s->insn_bits = aio_iiro_16_dio_insn_bits_write; |
| |
| s = &dev->subdevices[1]; |
| s->type = COMEDI_SUBD_DIO; |
| s->subdev_flags = SDF_READABLE; |
| s->n_chan = 16; |
| s->maxdata = 1; |
| s->range_table = &range_digital; |
| s->insn_bits = aio_iiro_16_dio_insn_bits_read; |
| |
| return 1; |
| } |
| |
| static struct comedi_driver aio_iiro_16_driver = { |
| .driver_name = "aio_iiro_16", |
| .module = THIS_MODULE, |
| .attach = aio_iiro_16_attach, |
| .detach = comedi_legacy_detach, |
| }; |
| module_comedi_driver(aio_iiro_16_driver); |
| |
| MODULE_AUTHOR("Comedi http://www.comedi.org"); |
| MODULE_DESCRIPTION("Comedi low-level driver"); |
| MODULE_LICENSE("GPL"); |