Version:  2.0.40 2.2.26 2.4.37 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1

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 
 35 #include "../comedi_pci.h"
 36 
 37 #include "ni_labpc.h"
 38 
 39 enum labpc_pci_boardid {
 40         BOARD_NI_PCI1200,
 41 };
 42 
 43 static const struct labpc_boardinfo labpc_pci_boards[] = {
 44         [BOARD_NI_PCI1200] = {
 45                 .name                   = "ni_pci-1200",
 46                 .ai_speed               = 10000,
 47                 .ai_scan_up             = 1,
 48                 .has_ao                 = 1,
 49                 .is_labpc1200           = 1,
 50         },
 51 };
 52 
 53 /* ripped from mite.h and mite_setup2() to avoid mite dependency */
 54 #define MITE_IODWBSR    0xc0     /* IO Device Window Base Size Register */
 55 #define WENAB           (1 << 7) /* window enable */
 56 
 57 static int labpc_pci_mite_init(struct pci_dev *pcidev)
 58 {
 59         void __iomem *mite_base;
 60         u32 main_phys_addr;
 61 
 62         /* ioremap the MITE registers (BAR 0) temporarily */
 63         mite_base = pci_ioremap_bar(pcidev, 0);
 64         if (!mite_base)
 65                 return -ENOMEM;
 66 
 67         /* set data window to main registers (BAR 1) */
 68         main_phys_addr = pci_resource_start(pcidev, 1);
 69         writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR);
 70 
 71         /* finished with MITE registers */
 72         iounmap(mite_base);
 73         return 0;
 74 }
 75 
 76 static int labpc_pci_auto_attach(struct comedi_device *dev,
 77                                  unsigned long context)
 78 {
 79         struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 80         const struct labpc_boardinfo *board = NULL;
 81         int ret;
 82 
 83         if (context < ARRAY_SIZE(labpc_pci_boards))
 84                 board = &labpc_pci_boards[context];
 85         if (!board)
 86                 return -ENODEV;
 87         dev->board_ptr = board;
 88         dev->board_name = board->name;
 89 
 90         ret = comedi_pci_enable(dev);
 91         if (ret)
 92                 return ret;
 93 
 94         ret = labpc_pci_mite_init(pcidev);
 95         if (ret)
 96                 return ret;
 97 
 98         dev->mmio = pci_ioremap_bar(pcidev, 1);
 99         if (!dev->mmio)
100                 return -ENOMEM;
101 
102         return labpc_common_attach(dev, pcidev->irq, IRQF_SHARED);
103 }
104 
105 static void labpc_pci_detach(struct comedi_device *dev)
106 {
107         labpc_common_detach(dev);
108         comedi_pci_detach(dev);
109 }
110 
111 static struct comedi_driver labpc_pci_comedi_driver = {
112         .driver_name    = "labpc_pci",
113         .module         = THIS_MODULE,
114         .auto_attach    = labpc_pci_auto_attach,
115         .detach         = labpc_pci_detach,
116 };
117 
118 static const struct pci_device_id labpc_pci_table[] = {
119         { PCI_VDEVICE(NI, 0x161), BOARD_NI_PCI1200 },
120         { 0 }
121 };
122 MODULE_DEVICE_TABLE(pci, labpc_pci_table);
123 
124 static int labpc_pci_probe(struct pci_dev *dev,
125                            const struct pci_device_id *id)
126 {
127         return comedi_pci_auto_config(dev, &labpc_pci_comedi_driver,
128                                       id->driver_data);
129 }
130 
131 static struct pci_driver labpc_pci_driver = {
132         .name           = "labpc_pci",
133         .id_table       = labpc_pci_table,
134         .probe          = labpc_pci_probe,
135         .remove         = comedi_pci_auto_unconfig,
136 };
137 module_comedi_pci_driver(labpc_pci_comedi_driver, labpc_pci_driver);
138 
139 MODULE_DESCRIPTION("Comedi: National Instruments Lab-PC PCI-1200 driver");
140 MODULE_AUTHOR("Comedi http://www.comedi.org");
141 MODULE_LICENSE("GPL");
142 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us