contec_pci_dio.c revision 7fc465b106b40a598d83a0c98d0e8c2a1b4653ff
1/* 2 comedi/drivers/contec_pci_dio.c 3 4 COMEDI - Linux Control and Measurement Device Interface 5 Copyright (C) 2000 David A. Schleef <ds@schleef.org> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 21*/ 22/* 23Driver: contec_pci_dio 24Description: Contec PIO1616L digital I/O board 25Devices: [Contec] PIO1616L (contec_pci_dio) 26Author: Stefano Rivoir <s.rivoir@gts.it> 27Updated: Wed, 27 Jun 2007 13:00:06 +0100 28Status: works 29 30Configuration Options: not applicable, uses comedi PCI auto config 31*/ 32 33#include "../comedidev.h" 34 35#define PCI_DEVICE_ID_PIO1616L 0x8172 36 37/* 38 * Register map 39 */ 40#define PIO1616L_DI_REG 0x00 41#define PIO1616L_DO_REG 0x02 42 43static int contec_do_insn_bits(struct comedi_device *dev, 44 struct comedi_subdevice *s, 45 struct comedi_insn *insn, unsigned int *data) 46{ 47 unsigned int mask = data[0]; 48 unsigned int bits = data[1]; 49 50 if (mask) { 51 s->state &= ~mask; 52 s->state |= (bits & mask); 53 54 outw(s->state, dev->iobase + PIO1616L_DO_REG); 55 } 56 57 data[1] = s->state; 58 59 return insn->n; 60} 61 62static int contec_di_insn_bits(struct comedi_device *dev, 63 struct comedi_subdevice *s, 64 struct comedi_insn *insn, unsigned int *data) 65{ 66 data[1] = inw(dev->iobase + PIO1616L_DI_REG); 67 68 return insn->n; 69} 70 71static int contec_attach_pci(struct comedi_device *dev, 72 struct pci_dev *pcidev) 73{ 74 struct comedi_subdevice *s; 75 int ret; 76 77 dev->board_name = dev->driver->driver_name; 78 79 ret = comedi_pci_enable(pcidev, dev->board_name); 80 if (ret) 81 return ret; 82 dev->iobase = pci_resource_start(pcidev, 0); 83 84 ret = comedi_alloc_subdevices(dev, 2); 85 if (ret) 86 return ret; 87 88 s = &dev->subdevices[0]; 89 s->type = COMEDI_SUBD_DI; 90 s->subdev_flags = SDF_READABLE; 91 s->n_chan = 16; 92 s->maxdata = 1; 93 s->range_table = &range_digital; 94 s->insn_bits = contec_di_insn_bits; 95 96 s = &dev->subdevices[1]; 97 s->type = COMEDI_SUBD_DO; 98 s->subdev_flags = SDF_WRITABLE; 99 s->n_chan = 16; 100 s->maxdata = 1; 101 s->range_table = &range_digital; 102 s->insn_bits = contec_do_insn_bits; 103 104 dev_info(dev->class_dev, "%s attached\n", dev->board_name); 105 106 return 0; 107} 108 109static void contec_detach(struct comedi_device *dev) 110{ 111 struct pci_dev *pcidev = comedi_to_pci_dev(dev); 112 113 if (pcidev) { 114 if (dev->iobase) 115 comedi_pci_disable(pcidev); 116 } 117} 118 119static struct comedi_driver contec_pci_dio_driver = { 120 .driver_name = "contec_pci_dio", 121 .module = THIS_MODULE, 122 .attach_pci = contec_attach_pci, 123 .detach = contec_detach, 124}; 125 126static int __devinit contec_pci_dio_pci_probe(struct pci_dev *dev, 127 const struct pci_device_id *ent) 128{ 129 return comedi_pci_auto_config(dev, &contec_pci_dio_driver); 130} 131 132static void __devexit contec_pci_dio_pci_remove(struct pci_dev *dev) 133{ 134 comedi_pci_auto_unconfig(dev); 135} 136 137static DEFINE_PCI_DEVICE_TABLE(contec_pci_dio_pci_table) = { 138 { PCI_DEVICE(PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L) }, 139 { 0 } 140}; 141MODULE_DEVICE_TABLE(pci, contec_pci_dio_pci_table); 142 143static struct pci_driver contec_pci_dio_pci_driver = { 144 .name = "contec_pci_dio", 145 .id_table = contec_pci_dio_pci_table, 146 .probe = contec_pci_dio_pci_probe, 147 .remove = __devexit_p(contec_pci_dio_pci_remove), 148}; 149module_comedi_pci_driver(contec_pci_dio_driver, contec_pci_dio_pci_driver); 150 151MODULE_AUTHOR("Comedi http://www.comedi.org"); 152MODULE_DESCRIPTION("Comedi low-level driver"); 153MODULE_LICENSE("GPL"); 154