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Linux/drivers/staging/comedi/drivers/ni_labpc_pci.c

  1 /*
  2  * comedi/drivers/ni_labpc_pci.c
  3  * Driver for National Instruments Lab-PC PCI-1200
  4  * Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License as published by
  8  * the Free Software Foundation; either version 2 of the License, or
  9  * (at your option) any later version.
 10  *
 11  * This program is distributed in the hope that it will be useful,
 12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  * GNU General Public License for more details.
 15  */
 16 
 17 /*
 18  * Driver: ni_labpc_pci
 19  * Description: National Instruments Lab-PC PCI-1200
 20  * Devices: (National Instruments) PCI-1200 [ni_pci-1200]
 21  * Author: Frank Mori Hess <fmhess@users.sourceforge.net>
 22  * Status: works
 23  *
 24  * This is the PCI-specific support split off from the ni_labpc driver.
 25  *
 26  * Configuration Options: not applicable, uses PCI auto config
 27  *
 28  * NI manuals:
 29  * 340914a (pci-1200)
 30  */
 31 
 32 #include <linux/module.h>
 33 #include <linux/interrupt.h>
 34 #include <linux/pci.h>
 35 
 36 #include "../comedidev.h"
 37 
 38 #include "mite.h"
 39 #include "ni_labpc.h"
 40 
 41 enum labpc_pci_boardid {
 42         BOARD_NI_PCI1200,
 43 };
 44 
 45 static const struct labpc_boardinfo labpc_pci_boards[] = {
 46         [BOARD_NI_PCI1200] = {
 47                 .name                   = "ni_pci-1200",
 48                 .ai_speed               = 10000,
 49                 .ai_scan_up             = 1,
 50                 .has_ao                 = 1,
 51                 .is_labpc1200           = 1,
 52                 .has_mmio               = 1,
 53         },
 54 };
 55 
 56 static int labpc_pci_auto_attach(struct comedi_device *dev,
 57                                  unsigned long context)
 58 {
 59         struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 60         const struct labpc_boardinfo *board = NULL;
 61         struct labpc_private *devpriv;
 62         int ret;
 63 
 64         if (context < ARRAY_SIZE(labpc_pci_boards))
 65                 board = &labpc_pci_boards[context];
 66         if (!board)
 67                 return -ENODEV;
 68         dev->board_ptr = board;
 69         dev->board_name = board->name;
 70 
 71         ret = comedi_pci_enable(dev);
 72         if (ret)
 73                 return ret;
 74 
 75         devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
 76         if (!devpriv)
 77                 return -ENOMEM;
 78 
 79         devpriv->mite = mite_alloc(pcidev);
 80         if (!devpriv->mite)
 81                 return -ENOMEM;
 82         ret = mite_setup(devpriv->mite);
 83         if (ret < 0)
 84                 return ret;
 85         dev->iobase = (unsigned long)devpriv->mite->daq_io_addr;
 86 
 87         return labpc_common_attach(dev, mite_irq(devpriv->mite), IRQF_SHARED);
 88 }
 89 
 90 static void labpc_pci_detach(struct comedi_device *dev)
 91 {
 92         struct labpc_private *devpriv = dev->private;
 93 
 94         if (devpriv && devpriv->mite) {
 95                 mite_unsetup(devpriv->mite);
 96                 mite_free(devpriv->mite);
 97         }
 98         if (dev->irq)
 99                 free_irq(dev->irq, dev);
100         comedi_pci_disable(dev);
101 }
102 
103 static struct comedi_driver labpc_pci_comedi_driver = {
104         .driver_name    = "labpc_pci",
105         .module         = THIS_MODULE,
106         .auto_attach    = labpc_pci_auto_attach,
107         .detach         = labpc_pci_detach,
108 };
109 
110 static const struct pci_device_id labpc_pci_table[] = {
111         { PCI_VDEVICE(NI, 0x161), BOARD_NI_PCI1200 },
112         { 0 }
113 };
114 MODULE_DEVICE_TABLE(pci, labpc_pci_table);
115 
116 static int labpc_pci_probe(struct pci_dev *dev,
117                            const struct pci_device_id *id)
118 {
119         return comedi_pci_auto_config(dev, &labpc_pci_comedi_driver,
120                                       id->driver_data);
121 }
122 
123 static struct pci_driver labpc_pci_driver = {
124         .name           = "labpc_pci",
125         .id_table       = labpc_pci_table,
126         .probe          = labpc_pci_probe,
127         .remove         = comedi_pci_auto_unconfig,
128 };
129 module_comedi_pci_driver(labpc_pci_comedi_driver, labpc_pci_driver);
130 
131 MODULE_DESCRIPTION("Comedi: National Instruments Lab-PC PCI-1200 driver");
132 MODULE_AUTHOR("Comedi http://www.comedi.org");
133 MODULE_LICENSE("GPL");
134 

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