adl_pci7432.c revision 90f703d30dd3e0c16ff80f35e34e511385a05ad5
1/* 2 comedi/drivers/adl_pci7432.c 3 4 Hardware comedi driver fot PCI7432 Adlink card 5 Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca> 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: adl_pci7432 24Description: Driver for the Adlink PCI-7432 64 ch. isolated digital io board 25Devices: [ADLink] PCI-7432 (adl_pci7432) 26Author: Michel Lachaine <mike@mikelachaine.ca> 27Status: experimental 28Updated: Mon, 14 Apr 2008 15:08:14 +0100 29 30Configuration Options: 31 [0] - PCI bus of device (optional) 32 [1] - PCI slot of device (optional) 33 If bus/slot is not specified, the first supported 34 PCI device found will be used. 35*/ 36 37#include "../comedidev.h" 38#include <linux/kernel.h> 39#include "comedi_pci.h" 40 41#define PCI7432_DI 0x00 42#define PCI7432_DO 0x00 43 44#define PCI_DEVICE_ID_PCI7432 0x7432 45 46static DEFINE_PCI_DEVICE_TABLE(adl_pci7432_pci_table) = { 47 { 48 PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7432, PCI_ANY_ID, 49 PCI_ANY_ID, 0, 0, 0}, { 50 0} 51}; 52 53MODULE_DEVICE_TABLE(pci, adl_pci7432_pci_table); 54 55struct adl_pci7432_private { 56 int data; 57 struct pci_dev *pci_dev; 58}; 59 60#define devpriv ((struct adl_pci7432_private *)dev->private) 61 62static int adl_pci7432_attach(struct comedi_device *dev, 63 struct comedi_devconfig *it); 64static int adl_pci7432_detach(struct comedi_device *dev); 65static struct comedi_driver driver_adl_pci7432 = { 66 .driver_name = "adl_pci7432", 67 .module = THIS_MODULE, 68 .attach = adl_pci7432_attach, 69 .detach = adl_pci7432_detach, 70}; 71 72/* Digital IO */ 73 74static int adl_pci7432_di_insn_bits(struct comedi_device *dev, 75 struct comedi_subdevice *s, 76 struct comedi_insn *insn, 77 unsigned int *data); 78 79static int adl_pci7432_do_insn_bits(struct comedi_device *dev, 80 struct comedi_subdevice *s, 81 struct comedi_insn *insn, 82 unsigned int *data); 83 84/* */ 85 86static int adl_pci7432_attach(struct comedi_device *dev, 87 struct comedi_devconfig *it) 88{ 89 struct pci_dev *pcidev; 90 struct comedi_subdevice *s; 91 int bus, slot; 92 93 printk(KERN_INFO "comedi%d: attach adl_pci7432\n", dev->minor); 94 95 dev->board_name = "pci7432"; 96 bus = it->options[0]; 97 slot = it->options[1]; 98 99 if (alloc_private(dev, sizeof(struct adl_pci7432_private)) < 0) 100 return -ENOMEM; 101 102 if (alloc_subdevices(dev, 2) < 0) 103 return -ENOMEM; 104 105 for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); 106 pcidev != NULL; 107 pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) { 108 109 if (pcidev->vendor == PCI_VENDOR_ID_ADLINK && 110 pcidev->device == PCI_DEVICE_ID_PCI7432) { 111 if (bus || slot) { 112 /* requested particular bus/slot */ 113 if (pcidev->bus->number != bus 114 || PCI_SLOT(pcidev->devfn) != slot) { 115 continue; 116 } 117 } 118 devpriv->pci_dev = pcidev; 119 if (comedi_pci_enable(pcidev, "adl_pci7432") < 0) { 120 printk(KERN_ERR "comedi%d: Failed to enable PCI device and request regions\n", 121 dev->minor); 122 return -EIO; 123 } 124 dev->iobase = pci_resource_start(pcidev, 2); 125 printk(KERN_INFO "comedi: base addr %4lx\n", 126 dev->iobase); 127 128 s = dev->subdevices + 0; 129 s->type = COMEDI_SUBD_DI; 130 s->subdev_flags = 131 SDF_READABLE | SDF_GROUND | SDF_COMMON; 132 s->n_chan = 32; 133 s->maxdata = 1; 134 s->len_chanlist = 32; 135 s->io_bits = 0x00000000; 136 s->range_table = &range_digital; 137 s->insn_bits = adl_pci7432_di_insn_bits; 138 139 s = dev->subdevices + 1; 140 s->type = COMEDI_SUBD_DO; 141 s->subdev_flags = 142 SDF_WRITABLE | SDF_GROUND | SDF_COMMON; 143 s->n_chan = 32; 144 s->maxdata = 1; 145 s->len_chanlist = 32; 146 s->io_bits = 0xffffffff; 147 s->range_table = &range_digital; 148 s->insn_bits = adl_pci7432_do_insn_bits; 149 150 printk(KERN_DEBUG "comedi%d: adl_pci7432 attached\n", 151 dev->minor); 152 return 1; 153 } 154 } 155 156 printk(KERN_ERR "comedi%d: no supported board found! (req. bus/slot : %d/%d)\n", 157 dev->minor, bus, slot); 158 return -EIO; 159} 160 161static int adl_pci7432_detach(struct comedi_device *dev) 162{ 163 printk(KERN_INFO "comedi%d: pci7432: remove\n", dev->minor); 164 165 if (devpriv && devpriv->pci_dev) { 166 if (dev->iobase) 167 comedi_pci_disable(devpriv->pci_dev); 168 pci_dev_put(devpriv->pci_dev); 169 } 170 171 return 0; 172} 173 174static int adl_pci7432_do_insn_bits(struct comedi_device *dev, 175 struct comedi_subdevice *s, 176 struct comedi_insn *insn, 177 unsigned int *data) 178{ 179 printk(KERN_DEBUG "comedi: pci7432_do_insn_bits called\n"); 180 printk(KERN_DEBUG "comedi: data0: %8x data1: %8x\n", data[0], data[1]); 181 182 if (insn->n != 2) 183 return -EINVAL; 184 185 if (data[0]) { 186 s->state &= ~data[0]; 187 s->state |= (data[0] & data[1]); 188 189 printk(KERN_DEBUG "comedi: out: %8x on iobase %4lx\n", s->state, 190 dev->iobase + PCI7432_DO); 191 outl(s->state & 0xffffffff, dev->iobase + PCI7432_DO); 192 } 193 return 2; 194} 195 196static int adl_pci7432_di_insn_bits(struct comedi_device *dev, 197 struct comedi_subdevice *s, 198 struct comedi_insn *insn, 199 unsigned int *data) 200{ 201 printk(KERN_DEBUG "comedi: pci7432_di_insn_bits called\n"); 202 printk(KERN_DEBUG "comedi: data0: %8x data1: %8x\n", data[0], data[1]); 203 204 if (insn->n != 2) 205 return -EINVAL; 206 207 data[1] = inl(dev->iobase + PCI7432_DI) & 0xffffffff; 208 printk(KERN_DEBUG "comedi: data1 %8x\n", data[1]); 209 210 return 2; 211} 212 213COMEDI_PCI_INITCLEANUP(driver_adl_pci7432, adl_pci7432_pci_table); 214 215MODULE_AUTHOR("Comedi http://www.comedi.org"); 216MODULE_DESCRIPTION("Comedi low-level driver"); 217MODULE_LICENSE("GPL"); 218