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/interrupt.h>
45 #include "../comedidev.h"
49 #define PCI_VENDOR_ID_NATINST 0x1093
51 #define AO_VALUE_OFFSET 0x00
52 #define AO_CHAN_OFFSET 0x0c
53 #define AO_STATUS_OFFSET 0x10
54 #define AO_CONTROL_OFFSET 0x10
55 #define DIO_PORT0_DIR_OFFSET 0x20
56 #define DIO_PORT0_DATA_OFFSET 0x24
57 #define DIO_PORT1_DIR_OFFSET 0x28
58 #define DIO_PORT1_DATA_OFFSET 0x2c
59 #define MISC_STATUS_OFFSET 0x14
60 #define MISC_CONTROL_OFFSET 0x14
62 /* Board description*/
64 struct ni_670x_board {
65 unsigned short dev_id;
67 unsigned short ao_chans;
68 unsigned short ao_bits;
71 static const struct ni_670x_board ni_670x_boards[] = {
92 static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = {
94 PCI_VENDOR_ID_NATINST, 0x2c90, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
95 PCI_VENDOR_ID_NATINST, 0x1920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
96 /*{ PCI_VENDOR_ID_NATINST, 0x0000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },*/
101 MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
103 #define thisboard ((struct ni_670x_board *)dev->board_ptr)
105 struct ni_670x_private {
107 struct mite_struct *mite;
110 unsigned int ao_readback[32];
113 #define devpriv ((struct ni_670x_private *)dev->private)
114 #define n_ni_670x_boards ARRAY_SIZE(ni_670x_boards)
116 static int ni_670x_attach(struct comedi_device *dev,
117 struct comedi_devconfig *it);
118 static int ni_670x_detach(struct comedi_device *dev);
120 static struct comedi_driver driver_ni_670x = {
121 .driver_name = "ni_670x",
122 .module = THIS_MODULE,
123 .attach = ni_670x_attach,
124 .detach = ni_670x_detach,
127 COMEDI_PCI_INITCLEANUP(driver_ni_670x, ni_670x_pci_table);
129 static struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
131 static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot);
133 static int ni_670x_ao_winsn(struct comedi_device *dev,
134 struct comedi_subdevice *s,
135 struct comedi_insn *insn, unsigned int *data);
136 static int ni_670x_ao_rinsn(struct comedi_device *dev,
137 struct comedi_subdevice *s,
138 struct comedi_insn *insn, unsigned int *data);
139 static int ni_670x_dio_insn_bits(struct comedi_device *dev,
140 struct comedi_subdevice *s,
141 struct comedi_insn *insn, unsigned int *data);
142 static int ni_670x_dio_insn_config(struct comedi_device *dev,
143 struct comedi_subdevice *s,
144 struct comedi_insn *insn,
147 static int ni_670x_attach(struct comedi_device *dev,
148 struct comedi_devconfig *it)
150 struct comedi_subdevice *s;
154 printk(KERN_INFO "comedi%d: ni_670x: ", dev->minor);
156 ret = alloc_private(dev, sizeof(struct ni_670x_private));
160 ret = ni_670x_find_device(dev, it->options[0], it->options[1]);
164 ret = mite_setup(devpriv->mite);
166 printk(KERN_WARNING "error setting up mite\n");
169 dev->board_name = thisboard->name;
170 dev->irq = mite_irq(devpriv->mite);
171 printk(KERN_INFO " %s", dev->board_name);
173 if (alloc_subdevices(dev, 2) < 0)
176 s = dev->subdevices + 0;
177 /* analog output subdevice */
178 s->type = COMEDI_SUBD_AO;
179 s->subdev_flags = SDF_WRITABLE;
180 s->n_chan = thisboard->ao_chans;
182 if (s->n_chan == 32) {
183 const struct comedi_lrange **range_table_list;
185 range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
187 if (!range_table_list)
189 s->range_table_list = range_table_list;
190 for (i = 0; i < 16; i++) {
191 range_table_list[i] = &range_bipolar10;
192 range_table_list[16 + i] = &range_0_20mA;
195 s->range_table = &range_bipolar10;
197 s->insn_write = &ni_670x_ao_winsn;
198 s->insn_read = &ni_670x_ao_rinsn;
200 s = dev->subdevices + 1;
201 /* digital i/o subdevice */
202 s->type = COMEDI_SUBD_DIO;
203 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
206 s->range_table = &range_digital;
207 s->insn_bits = ni_670x_dio_insn_bits;
208 s->insn_config = ni_670x_dio_insn_config;
210 /* Config of misc registers */
211 writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET);
212 /* Config of ao registers */
213 writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET);
215 printk(KERN_INFO "attached\n");
220 static int ni_670x_detach(struct comedi_device *dev)
222 printk(KERN_INFO "comedi%d: ni_670x: remove\n", dev->minor);
224 kfree(dev->subdevices[0].range_table_list);
226 if (dev->private && devpriv->mite)
227 mite_unsetup(devpriv->mite);
230 free_irq(dev->irq, dev);
235 static int ni_670x_ao_winsn(struct comedi_device *dev,
236 struct comedi_subdevice *s,
237 struct comedi_insn *insn, unsigned int *data)
240 int chan = CR_CHAN(insn->chanspec);
242 /* Channel number mapping :
244 NI 6703/ NI 6704 | NI 6704 Only
245 ----------------------------------------------------
246 vch(0) : 0 | ich(16) : 1
247 vch(1) : 2 | ich(17) : 3
251 vch(15) : 30 | ich(31) : 31 */
253 for (i = 0; i < insn->n; i++) {
254 /* First write in channel register which channel to use */
255 writel(((chan & 15) << 1) | ((chan & 16) >> 4),
256 devpriv->mite->daq_io_addr + AO_CHAN_OFFSET);
257 /* write channel value */
258 writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET);
259 devpriv->ao_readback[chan] = data[i];
265 static int ni_670x_ao_rinsn(struct comedi_device *dev,
266 struct comedi_subdevice *s,
267 struct comedi_insn *insn, unsigned int *data)
270 int chan = CR_CHAN(insn->chanspec);
272 for (i = 0; i < insn->n; i++)
273 data[i] = devpriv->ao_readback[chan];
278 static int ni_670x_dio_insn_bits(struct comedi_device *dev,
279 struct comedi_subdevice *s,
280 struct comedi_insn *insn, unsigned int *data)
285 /* The insn data is a mask in data[0] and the new data
286 * in data[1], each channel cooresponding to a bit. */
288 s->state &= ~data[0];
289 s->state |= data[0] & data[1];
291 devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
294 /* on return, data[1] contains the value of the digital
296 data[1] = readl(devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
301 static int ni_670x_dio_insn_config(struct comedi_device *dev,
302 struct comedi_subdevice *s,
303 struct comedi_insn *insn, unsigned int *data)
305 int chan = CR_CHAN(insn->chanspec);
308 case INSN_CONFIG_DIO_OUTPUT:
309 s->io_bits |= 1 << chan;
311 case INSN_CONFIG_DIO_INPUT:
312 s->io_bits &= ~(1 << chan);
314 case INSN_CONFIG_DIO_QUERY:
316 (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
323 writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);
328 static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot)
330 struct mite_struct *mite;
333 for (mite = mite_devices; mite; mite = mite->next) {
337 if (bus != mite->pcidev->bus->number
338 || slot != PCI_SLOT(mite->pcidev->devfn))
342 for (i = 0; i < n_ni_670x_boards; i++) {
343 if (mite_device_id(mite) == ni_670x_boards[i].dev_id) {
344 dev->board_ptr = ni_670x_boards + i;
345 devpriv->mite = mite;
351 printk(KERN_INFO "no device found\n");