Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 | /*
* addi_apci_16xx.c
* Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
* Project manager: S. Weber
*
* ADDI-DATA GmbH
* Dieselstrasse 3
* D-77833 Ottersweier
* Tel: +19(0)7223/9493-0
* Fax: +49(0)7223/9493-92
* http://www.addi-data.com
* info@addi-data.com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* You should also find the complete GPL in the COPYING file accompanying
* this source code.
*/
#include <linux/pci.h>
#include "../comedidev.h"
/*
* PCI device ids supported by this driver
*/
#define PCI_DEVICE_ID_APCI1648 0x1009
#define PCI_DEVICE_ID_APCI1696 0x100a
/*
* Register I/O map
*/
#define APCI16XX_IN_REG(x) (((x) * 4) + 0x08)
#define APCI16XX_OUT_REG(x) (((x) * 4) + 0x14)
#define APCI16XX_DIR_REG(x) (((x) * 4) + 0x20)
struct apci16xx_boardinfo {
const char *name;
unsigned short vendor;
unsigned short device;
int n_chan;
};
static const struct apci16xx_boardinfo apci16xx_boardtypes[] = {
{
.name = "apci1648",
.vendor = PCI_VENDOR_ID_ADDIDATA,
.device = PCI_DEVICE_ID_APCI1648,
.n_chan = 48, /* 2 subdevices */
}, {
.name = "apci1696",
.vendor = PCI_VENDOR_ID_ADDIDATA,
.device = PCI_DEVICE_ID_APCI1696,
.n_chan = 96, /* 3 subdevices */
},
};
static int apci16xx_insn_config(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned int chan_mask = 1 << CR_CHAN(insn->chanspec);
unsigned int bits;
/*
* Each 8-bit "port" is configurable as either input or
* output. Changing the configuration of any channel in
* a port changes the entire port.
*/
if (chan_mask & 0x000000ff)
bits = 0x000000ff;
else if (chan_mask & 0x0000ff00)
bits = 0x0000ff00;
else if (chan_mask & 0x00ff0000)
bits = 0x00ff0000;
else
bits = 0xff000000;
switch (data[0]) {
case INSN_CONFIG_DIO_INPUT:
s->io_bits &= ~bits;
break;
case INSN_CONFIG_DIO_OUTPUT:
s->io_bits |= bits;
break;
case INSN_CONFIG_DIO_QUERY:
data[1] = (s->io_bits & bits) ? COMEDI_INPUT : COMEDI_OUTPUT;
return insn->n;
default:
return -EINVAL;
}
outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(s->index));
return insn->n;
}
static int apci16xx_dio_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned int mask = data[0];
unsigned int bits = data[1];
/* Only update the channels configured as outputs */
mask &= s->io_bits;
if (mask) {
s->state &= ~mask;
s->state |= (bits & mask);
outl(s->state, dev->iobase + APCI16XX_OUT_REG(s->index));
}
data[1] = inl(dev->iobase + APCI16XX_IN_REG(s->index));
return insn->n;
}
static const void *apci16xx_find_boardinfo(struct comedi_device *dev,
struct pci_dev *pcidev)
{
const struct apci16xx_boardinfo *board;
int i;
for (i = 0; i < ARRAY_SIZE(apci16xx_boardtypes); i++) {
board = &apci16xx_boardtypes[i];
if (board->vendor == pcidev->vendor &&
board->device == pcidev->device)
return board;
}
return NULL;
}
static int apci16xx_auto_attach(struct comedi_device *dev,
unsigned long context_unused)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
const struct apci16xx_boardinfo *board;
struct comedi_subdevice *s;
unsigned int n_subdevs;
unsigned int last;
int i;
int ret;
board = apci16xx_find_boardinfo(dev, pcidev);
if (!board)
return -ENODEV;
dev->board_ptr = board;
dev->board_name = board->name;
ret = comedi_pci_enable(pcidev, dev->board_name);
if (ret)
return ret;
dev->iobase = pci_resource_start(pcidev, 0);
/*
* Work out the nubmer of subdevices needed to support all the
* digital i/o channels on the board. Each subdevice supports
* up to 32 channels.
*/
n_subdevs = board->n_chan / 32;
if ((n_subdevs * 32) < board->n_chan) {
last = board->n_chan - (n_subdevs * 32);
n_subdevs++;
} else {
last = 0;
}
ret = comedi_alloc_subdevices(dev, n_subdevs);
if (ret)
return ret;
/* Initialize the TTL digital i/o subdevices */
for (i = 0; i < n_subdevs; i++) {
s = &dev->subdevices[i];
s->type = COMEDI_SUBD_DIO;
s->subdev_flags = SDF_WRITEABLE | SDF_READABLE;
s->n_chan = ((i * 32) < board->n_chan) ? 32 : last;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_config = apci16xx_insn_config;
s->insn_bits = apci16xx_dio_insn_bits;
/* Default all channels to inputs */
s->io_bits = 0;
outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(i));
}
return 0;
}
static void apci16xx_detach(struct comedi_device *dev)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
if (pcidev) {
if (dev->iobase)
comedi_pci_disable(pcidev);
}
}
static struct comedi_driver apci16xx_driver = {
.driver_name = "addi_apci_16xx",
.module = THIS_MODULE,
.auto_attach = apci16xx_auto_attach,
.detach = apci16xx_detach,
.num_names = ARRAY_SIZE(apci16xx_boardtypes),
.board_name = &apci16xx_boardtypes[0].name,
.offset = sizeof(struct apci16xx_boardinfo),
};
static int apci16xx_pci_probe(struct pci_dev *dev,
const struct pci_device_id *ent)
{
return comedi_pci_auto_config(dev, &apci16xx_driver);
}
static DEFINE_PCI_DEVICE_TABLE(apci16xx_pci_table) = {
{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1648) },
{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1696) },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, apci16xx_pci_table);
static struct pci_driver apci16xx_pci_driver = {
.name = "addi_apci_16xx",
.id_table = apci16xx_pci_table,
.probe = apci16xx_pci_probe,
.remove = comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(apci16xx_driver, apci16xx_pci_driver);
MODULE_DESCRIPTION("ADDI-DATA APCI-1648/1696, TTL I/O boards");
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_LICENSE("GPL");
|