adl_pci7432.c revision 0a85b6f0ab0d2edb0d41b32697111ce0e4f43496
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("comedi: attempt to attach...\n"); 94 printk("comedi%d: adl_pci7432\n", dev->minor); 95 96 dev->board_name = "pci7432"; 97 bus = it->options[0]; 98 slot = it->options[1]; 99 100 if (alloc_private(dev, sizeof(struct adl_pci7432_private)) < 0) 101 return -ENOMEM; 102 103 if (alloc_subdevices(dev, 2) < 0) 104 return -ENOMEM; 105 106 for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); 107 pcidev != NULL; 108 pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) { 109 110 if (pcidev->vendor == PCI_VENDOR_ID_ADLINK && 111 pcidev->device == PCI_DEVICE_ID_PCI7432) { 112 if (bus || slot) { 113 /* requested particular bus/slot */ 114 if (pcidev->bus->number != bus 115 || PCI_SLOT(pcidev->devfn) != slot) { 116 continue; 117 } 118 } 119 devpriv->pci_dev = pcidev; 120 if (comedi_pci_enable(pcidev, "adl_pci7432") < 0) { 121 printk 122 ("comedi%d: Failed to enable PCI device and request regions\n", 123 dev->minor); 124 return -EIO; 125 } 126 dev->iobase = pci_resource_start(pcidev, 2); 127 printk("comedi: base addr %4lx\n", dev->iobase); 128 129 s = dev->subdevices + 0; 130 s->type = COMEDI_SUBD_DI; 131 s->subdev_flags = 132 SDF_READABLE | SDF_GROUND | SDF_COMMON; 133 s->n_chan = 32; 134 s->maxdata = 1; 135 s->len_chanlist = 32; 136 s->io_bits = 0x00000000; 137 s->range_table = &range_digital; 138 s->insn_bits = adl_pci7432_di_insn_bits; 139 140 s = dev->subdevices + 1; 141 s->type = COMEDI_SUBD_DO; 142 s->subdev_flags = 143 SDF_WRITABLE | SDF_GROUND | SDF_COMMON; 144 s->n_chan = 32; 145 s->maxdata = 1; 146 s->len_chanlist = 32; 147 s->io_bits = 0xffffffff; 148 s->range_table = &range_digital; 149 s->insn_bits = adl_pci7432_do_insn_bits; 150 151 printk("comedi: attached\n"); 152 153 return 1; 154 } 155 } 156 157 printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n", 158 dev->minor, bus, slot); 159 return -EIO; 160} 161 162static int adl_pci7432_detach(struct comedi_device *dev) 163{ 164 printk("comedi%d: pci7432: remove\n", dev->minor); 165 166 if (devpriv && devpriv->pci_dev) { 167 if (dev->iobase) { 168 comedi_pci_disable(devpriv->pci_dev); 169 } 170 pci_dev_put(devpriv->pci_dev); 171 } 172 173 return 0; 174} 175 176static int adl_pci7432_do_insn_bits(struct comedi_device *dev, 177 struct comedi_subdevice *s, 178 struct comedi_insn *insn, 179 unsigned int *data) 180{ 181 printk("comedi: pci7432_do_insn_bits called\n"); 182 printk("comedi: data0: %8x data1: %8x\n", data[0], data[1]); 183 184 if (insn->n != 2) 185 return -EINVAL; 186 187 if (data[0]) { 188 s->state &= ~data[0]; 189 s->state |= (data[0] & data[1]); 190 191 printk("comedi: out: %8x on iobase %4lx\n", s->state, 192 dev->iobase + PCI7432_DO); 193 outl(s->state & 0xffffffff, dev->iobase + PCI7432_DO); 194 } 195 return 2; 196} 197 198static int adl_pci7432_di_insn_bits(struct comedi_device *dev, 199 struct comedi_subdevice *s, 200 struct comedi_insn *insn, 201 unsigned int *data) 202{ 203 printk("comedi: pci7432_di_insn_bits called\n"); 204 printk("comedi: data0: %8x data1: %8x\n", data[0], data[1]); 205 206 if (insn->n != 2) 207 return -EINVAL; 208 209 data[1] = inl(dev->iobase + PCI7432_DI) & 0xffffffff; 210 printk("comedi: data1 %8x\n", data[1]); 211 212 return 2; 213} 214 215COMEDI_PCI_INITCLEANUP(driver_adl_pci7432, adl_pci7432_pci_table); 216