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 enum ni_670x_boardid {
69 struct ni_670x_board {
71 unsigned short ao_chans;
74 static const struct ni_670x_board ni_670x_boards[] = {
89 struct ni_670x_private {
91 struct mite_struct *mite;
94 unsigned int ao_readback[32];
97 static struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
99 static int ni_670x_ao_winsn(struct comedi_device *dev,
100 struct comedi_subdevice *s,
101 struct comedi_insn *insn, unsigned int *data)
103 struct ni_670x_private *devpriv = dev->private;
105 int chan = CR_CHAN(insn->chanspec);
107 /* Channel number mapping :
109 NI 6703/ NI 6704 | NI 6704 Only
110 ----------------------------------------------------
111 vch(0) : 0 | ich(16) : 1
112 vch(1) : 2 | ich(17) : 3
116 vch(15) : 30 | ich(31) : 31 */
118 for (i = 0; i < insn->n; i++) {
119 /* First write in channel register which channel to use */
120 writel(((chan & 15) << 1) | ((chan & 16) >> 4),
121 devpriv->mite->daq_io_addr + AO_CHAN_OFFSET);
122 /* write channel value */
123 writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET);
124 devpriv->ao_readback[chan] = data[i];
130 static int ni_670x_ao_rinsn(struct comedi_device *dev,
131 struct comedi_subdevice *s,
132 struct comedi_insn *insn, unsigned int *data)
134 struct ni_670x_private *devpriv = dev->private;
136 int chan = CR_CHAN(insn->chanspec);
138 for (i = 0; i < insn->n; i++)
139 data[i] = devpriv->ao_readback[chan];
144 static int ni_670x_dio_insn_bits(struct comedi_device *dev,
145 struct comedi_subdevice *s,
146 struct comedi_insn *insn, unsigned int *data)
148 struct ni_670x_private *devpriv = dev->private;
149 void __iomem *io_addr = devpriv->mite->daq_io_addr +
150 DIO_PORT0_DATA_OFFSET;
151 unsigned int mask = data[0];
152 unsigned int bits = data[1];
156 s->state |= (bits & mask);
158 writel(s->state, io_addr);
161 data[1] = readl(io_addr);
166 static int ni_670x_dio_insn_config(struct comedi_device *dev,
167 struct comedi_subdevice *s,
168 struct comedi_insn *insn, unsigned int *data)
170 struct ni_670x_private *devpriv = dev->private;
171 int chan = CR_CHAN(insn->chanspec);
174 case INSN_CONFIG_DIO_OUTPUT:
175 s->io_bits |= 1 << chan;
177 case INSN_CONFIG_DIO_INPUT:
178 s->io_bits &= ~(1 << chan);
180 case INSN_CONFIG_DIO_QUERY:
182 (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
189 writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);
194 static int ni_670x_auto_attach(struct comedi_device *dev,
195 unsigned long context)
197 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
198 const struct ni_670x_board *thisboard = NULL;
199 struct ni_670x_private *devpriv;
200 struct comedi_subdevice *s;
204 if (context < ARRAY_SIZE(ni_670x_boards))
205 thisboard = &ni_670x_boards[context];
208 dev->board_ptr = thisboard;
209 dev->board_name = thisboard->name;
211 devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
214 dev->private = devpriv;
216 devpriv->mite = mite_alloc(pcidev);
220 ret = mite_setup(devpriv->mite);
222 dev_warn(dev->class_dev, "error setting up mite\n");
227 ret = comedi_alloc_subdevices(dev, 2);
231 s = &dev->subdevices[0];
232 /* analog output subdevice */
233 s->type = COMEDI_SUBD_AO;
234 s->subdev_flags = SDF_WRITABLE;
235 s->n_chan = thisboard->ao_chans;
237 if (s->n_chan == 32) {
238 const struct comedi_lrange **range_table_list;
240 range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
242 if (!range_table_list)
244 s->range_table_list = range_table_list;
245 for (i = 0; i < 16; i++) {
246 range_table_list[i] = &range_bipolar10;
247 range_table_list[16 + i] = &range_0_20mA;
250 s->range_table = &range_bipolar10;
252 s->insn_write = &ni_670x_ao_winsn;
253 s->insn_read = &ni_670x_ao_rinsn;
255 s = &dev->subdevices[1];
256 /* digital i/o subdevice */
257 s->type = COMEDI_SUBD_DIO;
258 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
261 s->range_table = &range_digital;
262 s->insn_bits = ni_670x_dio_insn_bits;
263 s->insn_config = ni_670x_dio_insn_config;
265 /* Config of misc registers */
266 writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET);
267 /* Config of ao registers */
268 writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET);
270 dev_info(dev->class_dev, "%s: %s attached\n",
271 dev->driver->driver_name, dev->board_name);
276 static void ni_670x_detach(struct comedi_device *dev)
278 struct ni_670x_private *devpriv = dev->private;
279 struct comedi_subdevice *s;
281 if (dev->n_subdevices) {
282 s = &dev->subdevices[0];
284 kfree(s->range_table_list);
286 if (devpriv && devpriv->mite) {
287 mite_unsetup(devpriv->mite);
288 mite_free(devpriv->mite);
290 comedi_pci_disable(dev);
293 static struct comedi_driver ni_670x_driver = {
294 .driver_name = "ni_670x",
295 .module = THIS_MODULE,
296 .auto_attach = ni_670x_auto_attach,
297 .detach = ni_670x_detach,
300 static int ni_670x_pci_probe(struct pci_dev *dev,
301 const struct pci_device_id *id)
303 return comedi_pci_auto_config(dev, &ni_670x_driver, id->driver_data);
306 static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = {
307 { PCI_VDEVICE(NI, 0x1290), BOARD_PCI6704 },
308 { PCI_VDEVICE(NI, 0x1920), BOARD_PXI6704 },
309 { PCI_VDEVICE(NI, 0x2c90), BOARD_PCI6703 },
312 MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
314 static struct pci_driver ni_670x_pci_driver = {
316 .id_table = ni_670x_pci_table,
317 .probe = ni_670x_pci_probe,
318 .remove = comedi_pci_auto_unconfig,
320 module_comedi_pci_driver(ni_670x_driver, ni_670x_pci_driver);
322 MODULE_AUTHOR("Comedi http://www.comedi.org");
323 MODULE_DESCRIPTION("Comedi low-level driver");
324 MODULE_LICENSE("GPL");