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