2 comedi/drivers/ni_670x.c
3 Hardware driver for NI 670x devices
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 Description: National Instruments 670x
26 Author: Bart Joris <bjoris@advalvas.be>
27 Updated: Wed, 11 Dec 2002 18:25:35 -0800
28 Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704
31 Commands are not supported.
35 Bart Joris <bjoris@advalvas.be> Last updated on 20/08/2001
39 322110a.pdf PCI/PXI-6704 User Manual
40 322110b.pdf PCI/PXI-6703/6704 User Manual
44 #include <linux/pci.h>
45 #include <linux/interrupt.h>
46 #include <linux/slab.h>
48 #include "../comedidev.h"
52 #define AO_VALUE_OFFSET 0x00
53 #define AO_CHAN_OFFSET 0x0c
54 #define AO_STATUS_OFFSET 0x10
55 #define AO_CONTROL_OFFSET 0x10
56 #define DIO_PORT0_DIR_OFFSET 0x20
57 #define DIO_PORT0_DATA_OFFSET 0x24
58 #define DIO_PORT1_DIR_OFFSET 0x28
59 #define DIO_PORT1_DATA_OFFSET 0x2c
60 #define MISC_STATUS_OFFSET 0x14
61 #define MISC_CONTROL_OFFSET 0x14
63 /* Board description*/
65 struct ni_670x_board {
67 unsigned short dev_id;
68 unsigned short ao_chans;
71 static const struct ni_670x_board ni_670x_boards[] = {
87 struct ni_670x_private {
89 struct mite_struct *mite;
92 unsigned int ao_readback[32];
95 static struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
97 static int ni_670x_ao_winsn(struct comedi_device *dev,
98 struct comedi_subdevice *s,
99 struct comedi_insn *insn, unsigned int *data)
101 struct ni_670x_private *devpriv = dev->private;
103 int chan = CR_CHAN(insn->chanspec);
105 /* Channel number mapping :
107 NI 6703/ NI 6704 | NI 6704 Only
108 ----------------------------------------------------
109 vch(0) : 0 | ich(16) : 1
110 vch(1) : 2 | ich(17) : 3
114 vch(15) : 30 | ich(31) : 31 */
116 for (i = 0; i < insn->n; i++) {
117 /* First write in channel register which channel to use */
118 writel(((chan & 15) << 1) | ((chan & 16) >> 4),
119 devpriv->mite->daq_io_addr + AO_CHAN_OFFSET);
120 /* write channel value */
121 writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET);
122 devpriv->ao_readback[chan] = data[i];
128 static int ni_670x_ao_rinsn(struct comedi_device *dev,
129 struct comedi_subdevice *s,
130 struct comedi_insn *insn, unsigned int *data)
132 struct ni_670x_private *devpriv = dev->private;
134 int chan = CR_CHAN(insn->chanspec);
136 for (i = 0; i < insn->n; i++)
137 data[i] = devpriv->ao_readback[chan];
142 static int ni_670x_dio_insn_bits(struct comedi_device *dev,
143 struct comedi_subdevice *s,
144 struct comedi_insn *insn, unsigned int *data)
146 struct ni_670x_private *devpriv = dev->private;
147 void __iomem *io_addr = devpriv->mite->daq_io_addr +
148 DIO_PORT0_DATA_OFFSET;
149 unsigned int mask = data[0];
150 unsigned int bits = data[1];
154 s->state |= (bits & mask);
156 writel(s->state, io_addr);
159 data[1] = readl(io_addr);
164 static int ni_670x_dio_insn_config(struct comedi_device *dev,
165 struct comedi_subdevice *s,
166 struct comedi_insn *insn, unsigned int *data)
168 struct ni_670x_private *devpriv = dev->private;
169 int chan = CR_CHAN(insn->chanspec);
172 case INSN_CONFIG_DIO_OUTPUT:
173 s->io_bits |= 1 << chan;
175 case INSN_CONFIG_DIO_INPUT:
176 s->io_bits &= ~(1 << chan);
178 case INSN_CONFIG_DIO_QUERY:
180 (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
187 writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);
192 static const struct ni_670x_board *
193 ni_670x_find_boardinfo(struct pci_dev *pcidev)
195 unsigned int dev_id = pcidev->device;
198 for (n = 0; n < ARRAY_SIZE(ni_670x_boards); n++) {
199 const struct ni_670x_board *board = &ni_670x_boards[n];
200 if (board->dev_id == dev_id)
206 static int ni_670x_auto_attach(struct comedi_device *dev,
207 unsigned long context_unused)
209 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
210 const struct ni_670x_board *thisboard;
211 struct ni_670x_private *devpriv;
212 struct comedi_subdevice *s;
216 devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
219 dev->private = devpriv;
221 dev->board_ptr = ni_670x_find_boardinfo(pcidev);
224 devpriv->mite = mite_alloc(pcidev);
227 thisboard = comedi_board(dev);
229 ret = mite_setup(devpriv->mite);
231 dev_warn(dev->class_dev, "error setting up mite\n");
234 dev->board_name = thisboard->name;
236 ret = comedi_alloc_subdevices(dev, 2);
240 s = &dev->subdevices[0];
241 /* analog output subdevice */
242 s->type = COMEDI_SUBD_AO;
243 s->subdev_flags = SDF_WRITABLE;
244 s->n_chan = thisboard->ao_chans;
246 if (s->n_chan == 32) {
247 const struct comedi_lrange **range_table_list;
249 range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
251 if (!range_table_list)
253 s->range_table_list = range_table_list;
254 for (i = 0; i < 16; i++) {
255 range_table_list[i] = &range_bipolar10;
256 range_table_list[16 + i] = &range_0_20mA;
259 s->range_table = &range_bipolar10;
261 s->insn_write = &ni_670x_ao_winsn;
262 s->insn_read = &ni_670x_ao_rinsn;
264 s = &dev->subdevices[1];
265 /* digital i/o subdevice */
266 s->type = COMEDI_SUBD_DIO;
267 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
270 s->range_table = &range_digital;
271 s->insn_bits = ni_670x_dio_insn_bits;
272 s->insn_config = ni_670x_dio_insn_config;
274 /* Config of misc registers */
275 writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET);
276 /* Config of ao registers */
277 writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET);
279 dev_info(dev->class_dev, "%s: %s attached\n",
280 dev->driver->driver_name, dev->board_name);
285 static void ni_670x_detach(struct comedi_device *dev)
287 struct ni_670x_private *devpriv = dev->private;
288 struct comedi_subdevice *s;
290 if (dev->n_subdevices) {
291 s = &dev->subdevices[0];
293 kfree(s->range_table_list);
295 if (devpriv && devpriv->mite) {
296 mite_unsetup(devpriv->mite);
297 mite_free(devpriv->mite);
301 static struct comedi_driver ni_670x_driver = {
302 .driver_name = "ni_670x",
303 .module = THIS_MODULE,
304 .auto_attach = ni_670x_auto_attach,
305 .detach = ni_670x_detach,
308 static int ni_670x_pci_probe(struct pci_dev *dev,
309 const struct pci_device_id *ent)
311 return comedi_pci_auto_config(dev, &ni_670x_driver);
314 static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = {
315 { PCI_DEVICE(PCI_VENDOR_ID_NI, 0x2c90) },
316 { PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1920) },
319 MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
321 static struct pci_driver ni_670x_pci_driver = {
323 .id_table = ni_670x_pci_table,
324 .probe = ni_670x_pci_probe,
325 .remove = comedi_pci_auto_unconfig,
327 module_comedi_pci_driver(ni_670x_driver, ni_670x_pci_driver);
329 MODULE_AUTHOR("Comedi http://www.comedi.org");
330 MODULE_DESCRIPTION("Comedi low-level driver");
331 MODULE_LICENSE("GPL");