1/* 2 * addi_apci_16xx.c 3 * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. 4 * Project manager: S. Weber 5 * 6 * ADDI-DATA GmbH 7 * Dieselstrasse 3 8 * D-77833 Ottersweier 9 * Tel: +19(0)7223/9493-0 10 * Fax: +49(0)7223/9493-92 11 * http://www.addi-data.com 12 * info@addi-data.com 13 * 14 * This program is free software; you can redistribute it and/or modify it 15 * under the terms of the GNU General Public License as published by the 16 * Free Software Foundation; either version 2 of the License, or (at your 17 * option) any later version. 18 * 19 * This program is distributed in the hope that it will be useful, but WITHOUT 20 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 21 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 22 * more details. 23 */ 24 25#include <linux/module.h> 26#include <linux/pci.h> 27 28#include "../comedidev.h" 29 30/* 31 * Register I/O map 32 */ 33#define APCI16XX_IN_REG(x) (((x) * 4) + 0x08) 34#define APCI16XX_OUT_REG(x) (((x) * 4) + 0x14) 35#define APCI16XX_DIR_REG(x) (((x) * 4) + 0x20) 36 37enum apci16xx_boardid { 38 BOARD_APCI1648, 39 BOARD_APCI1696, 40}; 41 42struct apci16xx_boardinfo { 43 const char *name; 44 int n_chan; 45}; 46 47static const struct apci16xx_boardinfo apci16xx_boardtypes[] = { 48 [BOARD_APCI1648] = { 49 .name = "apci1648", 50 .n_chan = 48, /* 2 subdevices */ 51 }, 52 [BOARD_APCI1696] = { 53 .name = "apci1696", 54 .n_chan = 96, /* 3 subdevices */ 55 }, 56}; 57 58static int apci16xx_insn_config(struct comedi_device *dev, 59 struct comedi_subdevice *s, 60 struct comedi_insn *insn, 61 unsigned int *data) 62{ 63 unsigned int chan = CR_CHAN(insn->chanspec); 64 unsigned int mask; 65 int ret; 66 67 if (chan < 8) 68 mask = 0x000000ff; 69 else if (chan < 16) 70 mask = 0x0000ff00; 71 else if (chan < 24) 72 mask = 0x00ff0000; 73 else 74 mask = 0xff000000; 75 76 ret = comedi_dio_insn_config(dev, s, insn, data, mask); 77 if (ret) 78 return ret; 79 80 outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(s->index)); 81 82 return insn->n; 83} 84 85static int apci16xx_dio_insn_bits(struct comedi_device *dev, 86 struct comedi_subdevice *s, 87 struct comedi_insn *insn, 88 unsigned int *data) 89{ 90 if (comedi_dio_update_state(s, data)) 91 outl(s->state, dev->iobase + APCI16XX_OUT_REG(s->index)); 92 93 data[1] = inl(dev->iobase + APCI16XX_IN_REG(s->index)); 94 95 return insn->n; 96} 97 98static int apci16xx_auto_attach(struct comedi_device *dev, 99 unsigned long context) 100{ 101 struct pci_dev *pcidev = comedi_to_pci_dev(dev); 102 const struct apci16xx_boardinfo *board = NULL; 103 struct comedi_subdevice *s; 104 unsigned int n_subdevs; 105 unsigned int last; 106 int i; 107 int ret; 108 109 if (context < ARRAY_SIZE(apci16xx_boardtypes)) 110 board = &apci16xx_boardtypes[context]; 111 if (!board) 112 return -ENODEV; 113 dev->board_ptr = board; 114 dev->board_name = board->name; 115 116 ret = comedi_pci_enable(dev); 117 if (ret) 118 return ret; 119 120 dev->iobase = pci_resource_start(pcidev, 0); 121 122 /* 123 * Work out the nubmer of subdevices needed to support all the 124 * digital i/o channels on the board. Each subdevice supports 125 * up to 32 channels. 126 */ 127 n_subdevs = board->n_chan / 32; 128 if ((n_subdevs * 32) < board->n_chan) { 129 last = board->n_chan - (n_subdevs * 32); 130 n_subdevs++; 131 } else { 132 last = 0; 133 } 134 135 ret = comedi_alloc_subdevices(dev, n_subdevs); 136 if (ret) 137 return ret; 138 139 /* Initialize the TTL digital i/o subdevices */ 140 for (i = 0; i < n_subdevs; i++) { 141 s = &dev->subdevices[i]; 142 s->type = COMEDI_SUBD_DIO; 143 s->subdev_flags = SDF_WRITEABLE | SDF_READABLE; 144 s->n_chan = ((i * 32) < board->n_chan) ? 32 : last; 145 s->maxdata = 1; 146 s->range_table = &range_digital; 147 s->insn_config = apci16xx_insn_config; 148 s->insn_bits = apci16xx_dio_insn_bits; 149 150 /* Default all channels to inputs */ 151 s->io_bits = 0; 152 outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(i)); 153 } 154 155 return 0; 156} 157 158static struct comedi_driver apci16xx_driver = { 159 .driver_name = "addi_apci_16xx", 160 .module = THIS_MODULE, 161 .auto_attach = apci16xx_auto_attach, 162 .detach = comedi_pci_detach, 163}; 164 165static int apci16xx_pci_probe(struct pci_dev *dev, 166 const struct pci_device_id *id) 167{ 168 return comedi_pci_auto_config(dev, &apci16xx_driver, id->driver_data); 169} 170 171static const struct pci_device_id apci16xx_pci_table[] = { 172 { PCI_VDEVICE(ADDIDATA, 0x1009), BOARD_APCI1648 }, 173 { PCI_VDEVICE(ADDIDATA, 0x100a), BOARD_APCI1696 }, 174 { 0 } 175}; 176MODULE_DEVICE_TABLE(pci, apci16xx_pci_table); 177 178static struct pci_driver apci16xx_pci_driver = { 179 .name = "addi_apci_16xx", 180 .id_table = apci16xx_pci_table, 181 .probe = apci16xx_pci_probe, 182 .remove = comedi_pci_auto_unconfig, 183}; 184module_comedi_pci_driver(apci16xx_driver, apci16xx_pci_driver); 185 186MODULE_DESCRIPTION("ADDI-DATA APCI-1648/1696, TTL I/O boards"); 187MODULE_AUTHOR("Comedi http://www.comedi.org"); 188MODULE_LICENSE("GPL"); 189