adl_pci7432.c revision 90035c0886b256d75bced13b3b3cea5234aff136
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 {PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7432, PCI_ANY_ID, PCI_ANY_ID, 0, 48 0, 0}, 49 {0} 50}; 51 52MODULE_DEVICE_TABLE(pci, adl_pci7432_pci_table); 53 54typedef struct { 55 int data; 56 struct pci_dev *pci_dev; 57} adl_pci7432_private; 58 59#define devpriv ((adl_pci7432_private *)dev->private) 60 61static int adl_pci7432_attach(struct comedi_device * dev, comedi_devconfig * it); 62static int adl_pci7432_detach(struct comedi_device * dev); 63static struct comedi_driver driver_adl_pci7432 = { 64 driver_name:"adl_pci7432", 65 module:THIS_MODULE, 66 attach:adl_pci7432_attach, 67 detach:adl_pci7432_detach, 68}; 69 70/* Digital IO */ 71 72static int adl_pci7432_di_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, 73 struct comedi_insn * insn, unsigned int * data); 74 75static int adl_pci7432_do_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, 76 struct comedi_insn * insn, unsigned int * data); 77 78/* */ 79 80static int adl_pci7432_attach(struct comedi_device * dev, comedi_devconfig * it) 81{ 82 struct pci_dev *pcidev; 83 struct comedi_subdevice *s; 84 int bus, slot; 85 86 printk("comedi: attempt to attach...\n"); 87 printk("comedi%d: adl_pci7432\n", dev->minor); 88 89 dev->board_name = "pci7432"; 90 bus = it->options[0]; 91 slot = it->options[1]; 92 93 if (alloc_private(dev, sizeof(adl_pci7432_private)) < 0) 94 return -ENOMEM; 95 96 if (alloc_subdevices(dev, 2) < 0) 97 return -ENOMEM; 98 99 for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); 100 pcidev != NULL; 101 pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) { 102 103 if (pcidev->vendor == PCI_VENDOR_ID_ADLINK && 104 pcidev->device == PCI_DEVICE_ID_PCI7432) { 105 if (bus || slot) { 106 /* requested particular bus/slot */ 107 if (pcidev->bus->number != bus 108 || PCI_SLOT(pcidev->devfn) != slot) { 109 continue; 110 } 111 } 112 devpriv->pci_dev = pcidev; 113 if (comedi_pci_enable(pcidev, "adl_pci7432") < 0) { 114 printk("comedi%d: Failed to enable PCI device and request regions\n", dev->minor); 115 return -EIO; 116 } 117 dev->iobase = pci_resource_start(pcidev, 2); 118 printk("comedi: base addr %4lx\n", dev->iobase); 119 120 s = dev->subdevices + 0; 121 s->type = COMEDI_SUBD_DI; 122 s->subdev_flags = 123 SDF_READABLE | SDF_GROUND | SDF_COMMON; 124 s->n_chan = 32; 125 s->maxdata = 1; 126 s->len_chanlist = 32; 127 s->io_bits = 0x00000000; 128 s->range_table = &range_digital; 129 s->insn_bits = adl_pci7432_di_insn_bits; 130 131 s = dev->subdevices + 1; 132 s->type = COMEDI_SUBD_DO; 133 s->subdev_flags = 134 SDF_WRITABLE | SDF_GROUND | SDF_COMMON; 135 s->n_chan = 32; 136 s->maxdata = 1; 137 s->len_chanlist = 32; 138 s->io_bits = 0xffffffff; 139 s->range_table = &range_digital; 140 s->insn_bits = adl_pci7432_do_insn_bits; 141 142 printk("comedi: attached\n"); 143 144 return 1; 145 } 146 } 147 148 printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n", 149 dev->minor, bus, slot); 150 return -EIO; 151} 152 153static int adl_pci7432_detach(struct comedi_device * dev) 154{ 155 printk("comedi%d: pci7432: remove\n", dev->minor); 156 157 if (devpriv && devpriv->pci_dev) { 158 if (dev->iobase) { 159 comedi_pci_disable(devpriv->pci_dev); 160 } 161 pci_dev_put(devpriv->pci_dev); 162 } 163 164 return 0; 165} 166 167static int adl_pci7432_do_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, 168 struct comedi_insn * insn, unsigned int * data) 169{ 170 printk("comedi: pci7432_do_insn_bits called\n"); 171 printk("comedi: data0: %8x data1: %8x\n", data[0], data[1]); 172 173 if (insn->n != 2) 174 return -EINVAL; 175 176 if (data[0]) { 177 s->state &= ~data[0]; 178 s->state |= (data[0] & data[1]); 179 180 printk("comedi: out: %8x on iobase %4lx\n", s->state, 181 dev->iobase + PCI7432_DO); 182 outl(s->state & 0xffffffff, dev->iobase + PCI7432_DO); 183 } 184 return 2; 185} 186 187static int adl_pci7432_di_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, 188 struct comedi_insn * insn, unsigned int * data) 189{ 190 printk("comedi: pci7432_di_insn_bits called\n"); 191 printk("comedi: data0: %8x data1: %8x\n", data[0], data[1]); 192 193 if (insn->n != 2) 194 return -EINVAL; 195 196 data[1] = inl(dev->iobase + PCI7432_DI) & 0xffffffff; 197 printk("comedi: data1 %8x\n", data[1]); 198 199 return 2; 200} 201 202COMEDI_PCI_INITCLEANUP(driver_adl_pci7432, adl_pci7432_pci_table); 203