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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 | /*
comedi/drivers/ni_670x.c
Hardware driver for NI 670x devices
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
Driver: ni_670x
Description: National Instruments 670x
Author: Bart Joris <bjoris@advalvas.be>
Updated: Wed, 11 Dec 2002 18:25:35 -0800
Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704
Status: unknown
Commands are not supported.
*/
/*
Bart Joris <bjoris@advalvas.be> Last updated on 20/08/2001
Manuals:
322110a.pdf PCI/PXI-6704 User Manual
322110b.pdf PCI/PXI-6703/6704 User Manual
*/
#include <linux/interrupt.h>
#include <linux/slab.h>
#include "../comedidev.h"
#include "mite.h"
#define AO_VALUE_OFFSET 0x00
#define AO_CHAN_OFFSET 0x0c
#define AO_STATUS_OFFSET 0x10
#define AO_CONTROL_OFFSET 0x10
#define DIO_PORT0_DIR_OFFSET 0x20
#define DIO_PORT0_DATA_OFFSET 0x24
#define DIO_PORT1_DIR_OFFSET 0x28
#define DIO_PORT1_DATA_OFFSET 0x2c
#define MISC_STATUS_OFFSET 0x14
#define MISC_CONTROL_OFFSET 0x14
/* Board description*/
struct ni_670x_board {
unsigned short dev_id;
const char *name;
unsigned short ao_chans;
unsigned short ao_bits;
};
static const struct ni_670x_board ni_670x_boards[] = {
{
.dev_id = 0x2c90,
.name = "PCI-6703",
.ao_chans = 16,
.ao_bits = 16,
},
{
.dev_id = 0x1920,
.name = "PXI-6704",
.ao_chans = 32,
.ao_bits = 16,
},
{
.dev_id = 0x1290,
.name = "PCI-6704",
.ao_chans = 32,
.ao_bits = 16,
},
};
static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = {
{PCI_DEVICE(PCI_VENDOR_ID_NI, 0x2c90)},
{PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1920)},
{0}
};
MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
#define thisboard ((struct ni_670x_board *)dev->board_ptr)
struct ni_670x_private {
struct mite_struct *mite;
int boardtype;
int dio;
unsigned int ao_readback[32];
};
#define devpriv ((struct ni_670x_private *)dev->private)
#define n_ni_670x_boards ARRAY_SIZE(ni_670x_boards)
static int ni_670x_attach(struct comedi_device *dev,
struct comedi_devconfig *it);
static int ni_670x_detach(struct comedi_device *dev);
static struct comedi_driver driver_ni_670x = {
.driver_name = "ni_670x",
.module = THIS_MODULE,
.attach = ni_670x_attach,
.detach = ni_670x_detach,
};
static int __devinit driver_ni_670x_pci_probe(struct pci_dev *dev,
const struct pci_device_id *ent)
{
return comedi_pci_auto_config(dev, driver_ni_670x.driver_name);
}
static void __devexit driver_ni_670x_pci_remove(struct pci_dev *dev)
{
comedi_pci_auto_unconfig(dev);
}
static struct pci_driver driver_ni_670x_pci_driver = {
.id_table = ni_670x_pci_table,
.probe = &driver_ni_670x_pci_probe,
.remove = __devexit_p(&driver_ni_670x_pci_remove)
};
static int __init driver_ni_670x_init_module(void)
{
int retval;
retval = comedi_driver_register(&driver_ni_670x);
if (retval < 0)
return retval;
driver_ni_670x_pci_driver.name = (char *)driver_ni_670x.driver_name;
return pci_register_driver(&driver_ni_670x_pci_driver);
}
static void __exit driver_ni_670x_cleanup_module(void)
{
pci_unregister_driver(&driver_ni_670x_pci_driver);
comedi_driver_unregister(&driver_ni_670x);
}
module_init(driver_ni_670x_init_module);
module_exit(driver_ni_670x_cleanup_module);
static struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot);
static int ni_670x_ao_winsn(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data);
static int ni_670x_ao_rinsn(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data);
static int ni_670x_dio_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data);
static int ni_670x_dio_insn_config(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data);
static int ni_670x_attach(struct comedi_device *dev,
struct comedi_devconfig *it)
{
struct comedi_subdevice *s;
int ret;
int i;
printk(KERN_INFO "comedi%d: ni_670x: ", dev->minor);
ret = alloc_private(dev, sizeof(struct ni_670x_private));
if (ret < 0)
return ret;
ret = ni_670x_find_device(dev, it->options[0], it->options[1]);
if (ret < 0)
return ret;
ret = mite_setup(devpriv->mite);
if (ret < 0) {
printk(KERN_WARNING "error setting up mite\n");
return ret;
}
dev->board_name = thisboard->name;
dev->irq = mite_irq(devpriv->mite);
printk(KERN_INFO " %s", dev->board_name);
if (alloc_subdevices(dev, 2) < 0)
return -ENOMEM;
s = dev->subdevices + 0;
/* analog output subdevice */
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = thisboard->ao_chans;
s->maxdata = 0xffff;
if (s->n_chan == 32) {
const struct comedi_lrange **range_table_list;
range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
GFP_KERNEL);
if (!range_table_list)
return -ENOMEM;
s->range_table_list = range_table_list;
for (i = 0; i < 16; i++) {
range_table_list[i] = &range_bipolar10;
range_table_list[16 + i] = &range_0_20mA;
}
} else {
s->range_table = &range_bipolar10;
}
s->insn_write = &ni_670x_ao_winsn;
s->insn_read = &ni_670x_ao_rinsn;
s = dev->subdevices + 1;
/* digital i/o subdevice */
s->type = COMEDI_SUBD_DIO;
s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
s->n_chan = 8;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = ni_670x_dio_insn_bits;
s->insn_config = ni_670x_dio_insn_config;
/* Config of misc registers */
writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET);
/* Config of ao registers */
writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET);
printk(KERN_INFO "attached\n");
return 1;
}
static int ni_670x_detach(struct comedi_device *dev)
{
printk(KERN_INFO "comedi%d: ni_670x: remove\n", dev->minor);
kfree(dev->subdevices[0].range_table_list);
if (dev->private && devpriv->mite)
mite_unsetup(devpriv->mite);
if (dev->irq)
free_irq(dev->irq, dev);
return 0;
}
static int ni_670x_ao_winsn(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
int i;
int chan = CR_CHAN(insn->chanspec);
/* Channel number mapping :
NI 6703/ NI 6704 | NI 6704 Only
----------------------------------------------------
vch(0) : 0 | ich(16) : 1
vch(1) : 2 | ich(17) : 3
. : . | . .
. : . | . .
. : . | . .
vch(15) : 30 | ich(31) : 31 */
for (i = 0; i < insn->n; i++) {
/* First write in channel register which channel to use */
writel(((chan & 15) << 1) | ((chan & 16) >> 4),
devpriv->mite->daq_io_addr + AO_CHAN_OFFSET);
/* write channel value */
writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET);
devpriv->ao_readback[chan] = data[i];
}
return i;
}
static int ni_670x_ao_rinsn(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
int i;
int chan = CR_CHAN(insn->chanspec);
for (i = 0; i < insn->n; i++)
data[i] = devpriv->ao_readback[chan];
return i;
}
static int ni_670x_dio_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
if (insn->n != 2)
return -EINVAL;
/* The insn data is a mask in data[0] and the new data
* in data[1], each channel cooresponding to a bit. */
if (data[0]) {
s->state &= ~data[0];
s->state |= data[0] & data[1];
writel(s->state,
devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
}
/* on return, data[1] contains the value of the digital
* input lines. */
data[1] = readl(devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
return 2;
}
static int ni_670x_dio_insn_config(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
int chan = CR_CHAN(insn->chanspec);
switch (data[0]) {
case INSN_CONFIG_DIO_OUTPUT:
s->io_bits |= 1 << chan;
break;
case INSN_CONFIG_DIO_INPUT:
s->io_bits &= ~(1 << chan);
break;
case INSN_CONFIG_DIO_QUERY:
data[1] =
(s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
return insn->n;
break;
default:
return -EINVAL;
break;
}
writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);
return insn->n;
}
static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot)
{
struct mite_struct *mite;
int i;
for (mite = mite_devices; mite; mite = mite->next) {
if (mite->used)
continue;
if (bus || slot) {
if (bus != mite->pcidev->bus->number
|| slot != PCI_SLOT(mite->pcidev->devfn))
continue;
}
for (i = 0; i < n_ni_670x_boards; i++) {
if (mite_device_id(mite) == ni_670x_boards[i].dev_id) {
dev->board_ptr = ni_670x_boards + i;
devpriv->mite = mite;
return 0;
}
}
}
printk(KERN_INFO "no device found\n");
mite_list_devices();
return -EIO;
}
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
|