aio_iiro_16.c revision 71b5f4f11971dea972832ad63a994c7e5b45db6b
1/* 2 3 comedi/drivers/aio_iiro_16.c 4 5 Driver for Acces I/O Products PC-104 AIO-IIRO-16 Digital I/O board 6 Copyright (C) 2006 C&C Technologies, Inc. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21*/ 22 23/* 24 25Driver: aio_iiro_16 26Description: Acces I/O Products PC-104 IIRO16 Relay And Isolated Input Board 27Author: Zachary Ware <zach.ware@cctechnol.com> 28Devices: 29 [Acces I/O] PC-104 AIO12-8 30Status: experimental 31 32Configuration Options: 33 [0] - I/O port base address 34 35*/ 36 37#include "../comedidev.h" 38#include <linux/ioport.h> 39 40#define AIO_IIRO_16_SIZE 0x08 41#define AIO_IIRO_16_RELAY_0_7 0x00 42#define AIO_IIRO_16_INPUT_0_7 0x01 43#define AIO_IIRO_16_IRQ 0x02 44#define AIO_IIRO_16_RELAY_8_15 0x04 45#define AIO_IIRO_16_INPUT_8_15 0x05 46 47typedef struct aio_iiro_16_board_struct { 48 const char *name; 49 int do_; 50 int di; 51} aio_iiro_16_board; 52 53static const aio_iiro_16_board aio_iiro_16_boards[] = { 54 { 55 name: "aio_iiro_16", 56 di: 16, 57 do_: 16}, 58}; 59 60#define thisboard ((const aio_iiro_16_board *) dev->board_ptr) 61 62typedef struct { 63 int data; 64 struct pci_dev *pci_dev; 65 unsigned int ao_readback[2]; 66} aio_iiro_16_private; 67 68#define devpriv ((aio_iiro_16_private *) dev->private) 69 70static int aio_iiro_16_attach(struct comedi_device * dev, comedi_devconfig * it); 71 72static int aio_iiro_16_detach(struct comedi_device * dev); 73 74static comedi_driver driver_aio_iiro_16 = { 75 driver_name:"aio_iiro_16", 76 module:THIS_MODULE, 77 attach:aio_iiro_16_attach, 78 detach:aio_iiro_16_detach, 79 board_name:&aio_iiro_16_boards[0].name, 80 offset:sizeof(aio_iiro_16_board), 81 num_names:sizeof(aio_iiro_16_boards) / sizeof(aio_iiro_16_board), 82}; 83 84static int aio_iiro_16_dio_insn_bits_read(struct comedi_device * dev, 85 comedi_subdevice * s, comedi_insn * insn, unsigned int * data); 86 87static int aio_iiro_16_dio_insn_bits_write(struct comedi_device * dev, 88 comedi_subdevice * s, comedi_insn * insn, unsigned int * data); 89 90static int aio_iiro_16_attach(struct comedi_device * dev, comedi_devconfig * it) 91{ 92 int iobase; 93 comedi_subdevice *s; 94 95 printk("comedi%d: aio_iiro_16: ", dev->minor); 96 97 dev->board_name = thisboard->name; 98 99 iobase = it->options[0]; 100 101 if (!request_region(iobase, AIO_IIRO_16_SIZE, dev->board_name)) { 102 printk("I/O port conflict"); 103 return -EIO; 104 } 105 106 dev->iobase = iobase; 107 108 if (alloc_private(dev, sizeof(aio_iiro_16_private)) < 0) 109 return -ENOMEM; 110 111 if (alloc_subdevices(dev, 2) < 0) 112 return -ENOMEM; 113 114 s = dev->subdevices + 0; 115 s->type = COMEDI_SUBD_DIO; 116 s->subdev_flags = SDF_WRITABLE; 117 s->n_chan = 16; 118 s->maxdata = 1; 119 s->range_table = &range_digital; 120 s->insn_bits = aio_iiro_16_dio_insn_bits_write; 121 122 s = dev->subdevices + 1; 123 s->type = COMEDI_SUBD_DIO; 124 s->subdev_flags = SDF_READABLE; 125 s->n_chan = 16; 126 s->maxdata = 1; 127 s->range_table = &range_digital; 128 s->insn_bits = aio_iiro_16_dio_insn_bits_read; 129 130 printk("attached\n"); 131 132 return 1; 133} 134 135static int aio_iiro_16_detach(struct comedi_device * dev) 136{ 137 printk("comedi%d: aio_iiro_16: remove\n", dev->minor); 138 139 if (dev->iobase) 140 release_region(dev->iobase, AIO_IIRO_16_SIZE); 141 142 return 0; 143} 144 145static int aio_iiro_16_dio_insn_bits_write(struct comedi_device * dev, 146 comedi_subdevice * s, comedi_insn * insn, unsigned int * data) 147{ 148 if (insn->n != 2) 149 return -EINVAL; 150 151 if (data[0]) { 152 s->state &= ~data[0]; 153 s->state |= data[0] & data[1]; 154 outb(s->state & 0xff, dev->iobase + AIO_IIRO_16_RELAY_0_7); 155 outb((s->state >> 8) & 0xff, 156 dev->iobase + AIO_IIRO_16_RELAY_8_15); 157 } 158 159 data[1] = s->state; 160 161 return 2; 162} 163 164static int aio_iiro_16_dio_insn_bits_read(struct comedi_device * dev, 165 comedi_subdevice * s, comedi_insn * insn, unsigned int * data) 166{ 167 if (insn->n != 2) 168 return -EINVAL; 169 170 data[1] = 0; 171 data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_0_7); 172 data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_8_15) << 8; 173 174 return 2; 175} 176 177COMEDI_INITCLEANUP(driver_aio_iiro_16); 178