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 <linux/slab.h>
46 #include "../comedidev.h"
50 #define AO_VALUE_OFFSET 0x00
51 #define AO_CHAN_OFFSET 0x0c
52 #define AO_STATUS_OFFSET 0x10
53 #define AO_CONTROL_OFFSET 0x10
54 #define DIO_PORT0_DIR_OFFSET 0x20
55 #define DIO_PORT0_DATA_OFFSET 0x24
56 #define DIO_PORT1_DIR_OFFSET 0x28
57 #define DIO_PORT1_DATA_OFFSET 0x2c
58 #define MISC_STATUS_OFFSET 0x14
59 #define MISC_CONTROL_OFFSET 0x14
61 /* Board description*/
63 struct ni_670x_board {
64 unsigned short dev_id;
66 unsigned short ao_chans;
67 unsigned short ao_bits;
70 static const struct ni_670x_board ni_670x_boards[] = {
91 static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = {
92 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x2c90)},
93 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1920)},
97 MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
99 #define thisboard ((struct ni_670x_board *)dev->board_ptr)
101 struct ni_670x_private {
103 struct mite_struct *mite;
106 unsigned int ao_readback[32];
109 #define devpriv ((struct ni_670x_private *)dev->private)
110 #define n_ni_670x_boards ARRAY_SIZE(ni_670x_boards)
112 static int ni_670x_attach(struct comedi_device *dev,
113 struct comedi_devconfig *it);
114 static int ni_670x_detach(struct comedi_device *dev);
116 static struct comedi_driver driver_ni_670x = {
117 .driver_name = "ni_670x",
118 .module = THIS_MODULE,
119 .attach = ni_670x_attach,
120 .detach = ni_670x_detach,
123 COMEDI_PCI_INITCLEANUP(driver_ni_670x, ni_670x_pci_table);
125 static struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
127 static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot);
129 static int ni_670x_ao_winsn(struct comedi_device *dev,
130 struct comedi_subdevice *s,
131 struct comedi_insn *insn, unsigned int *data);
132 static int ni_670x_ao_rinsn(struct comedi_device *dev,
133 struct comedi_subdevice *s,
134 struct comedi_insn *insn, unsigned int *data);
135 static int ni_670x_dio_insn_bits(struct comedi_device *dev,
136 struct comedi_subdevice *s,
137 struct comedi_insn *insn, unsigned int *data);
138 static int ni_670x_dio_insn_config(struct comedi_device *dev,
139 struct comedi_subdevice *s,
140 struct comedi_insn *insn,
143 static int ni_670x_attach(struct comedi_device *dev,
144 struct comedi_devconfig *it)
146 struct comedi_subdevice *s;
150 printk(KERN_INFO "comedi%d: ni_670x: ", dev->minor);
152 ret = alloc_private(dev, sizeof(struct ni_670x_private));
156 ret = ni_670x_find_device(dev, it->options[0], it->options[1]);
160 ret = mite_setup(devpriv->mite);
162 printk(KERN_WARNING "error setting up mite\n");
165 dev->board_name = thisboard->name;
166 dev->irq = mite_irq(devpriv->mite);
167 printk(KERN_INFO " %s", dev->board_name);
169 if (alloc_subdevices(dev, 2) < 0)
172 s = dev->subdevices + 0;
173 /* analog output subdevice */
174 s->type = COMEDI_SUBD_AO;
175 s->subdev_flags = SDF_WRITABLE;
176 s->n_chan = thisboard->ao_chans;
178 if (s->n_chan == 32) {
179 const struct comedi_lrange **range_table_list;
181 range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
183 if (!range_table_list)
185 s->range_table_list = range_table_list;
186 for (i = 0; i < 16; i++) {
187 range_table_list[i] = &range_bipolar10;
188 range_table_list[16 + i] = &range_0_20mA;
191 s->range_table = &range_bipolar10;
193 s->insn_write = &ni_670x_ao_winsn;
194 s->insn_read = &ni_670x_ao_rinsn;
196 s = dev->subdevices + 1;
197 /* digital i/o subdevice */
198 s->type = COMEDI_SUBD_DIO;
199 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
202 s->range_table = &range_digital;
203 s->insn_bits = ni_670x_dio_insn_bits;
204 s->insn_config = ni_670x_dio_insn_config;
206 /* Config of misc registers */
207 writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET);
208 /* Config of ao registers */
209 writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET);
211 printk(KERN_INFO "attached\n");
216 static int ni_670x_detach(struct comedi_device *dev)
218 printk(KERN_INFO "comedi%d: ni_670x: remove\n", dev->minor);
220 kfree(dev->subdevices[0].range_table_list);
222 if (dev->private && devpriv->mite)
223 mite_unsetup(devpriv->mite);
226 free_irq(dev->irq, dev);
231 static int ni_670x_ao_winsn(struct comedi_device *dev,
232 struct comedi_subdevice *s,
233 struct comedi_insn *insn, unsigned int *data)
236 int chan = CR_CHAN(insn->chanspec);
238 /* Channel number mapping :
240 NI 6703/ NI 6704 | NI 6704 Only
241 ----------------------------------------------------
242 vch(0) : 0 | ich(16) : 1
243 vch(1) : 2 | ich(17) : 3
247 vch(15) : 30 | ich(31) : 31 */
249 for (i = 0; i < insn->n; i++) {
250 /* First write in channel register which channel to use */
251 writel(((chan & 15) << 1) | ((chan & 16) >> 4),
252 devpriv->mite->daq_io_addr + AO_CHAN_OFFSET);
253 /* write channel value */
254 writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET);
255 devpriv->ao_readback[chan] = data[i];
261 static int ni_670x_ao_rinsn(struct comedi_device *dev,
262 struct comedi_subdevice *s,
263 struct comedi_insn *insn, unsigned int *data)
266 int chan = CR_CHAN(insn->chanspec);
268 for (i = 0; i < insn->n; i++)
269 data[i] = devpriv->ao_readback[chan];
274 static int ni_670x_dio_insn_bits(struct comedi_device *dev,
275 struct comedi_subdevice *s,
276 struct comedi_insn *insn, unsigned int *data)
281 /* The insn data is a mask in data[0] and the new data
282 * in data[1], each channel cooresponding to a bit. */
284 s->state &= ~data[0];
285 s->state |= data[0] & data[1];
287 devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
290 /* on return, data[1] contains the value of the digital
292 data[1] = readl(devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
297 static int ni_670x_dio_insn_config(struct comedi_device *dev,
298 struct comedi_subdevice *s,
299 struct comedi_insn *insn, unsigned int *data)
301 int chan = CR_CHAN(insn->chanspec);
304 case INSN_CONFIG_DIO_OUTPUT:
305 s->io_bits |= 1 << chan;
307 case INSN_CONFIG_DIO_INPUT:
308 s->io_bits &= ~(1 << chan);
310 case INSN_CONFIG_DIO_QUERY:
312 (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
319 writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);
324 static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot)
326 struct mite_struct *mite;
329 for (mite = mite_devices; mite; mite = mite->next) {
333 if (bus != mite->pcidev->bus->number
334 || slot != PCI_SLOT(mite->pcidev->devfn))
338 for (i = 0; i < n_ni_670x_boards; i++) {
339 if (mite_device_id(mite) == ni_670x_boards[i].dev_id) {
340 dev->board_ptr = ni_670x_boards + i;
341 devpriv->mite = mite;
347 printk(KERN_INFO "no device found\n");