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 "../comedidev.h"
48 #define PCI_VENDOR_ID_NATINST 0x1093
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_VENDOR_ID_NATINST, 0x2c90, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
93 {PCI_VENDOR_ID_NATINST, 0x1920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
94 /* { PCI_VENDOR_ID_NATINST, 0x0000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */
98 MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
100 #define thisboard ((struct ni_670x_board *)dev->board_ptr)
102 struct ni_670x_private {
104 struct mite_struct *mite;
107 unsigned int ao_readback[32];
111 #define devpriv ((struct ni_670x_private *)dev->private)
112 #define n_ni_670x_boards (sizeof(ni_670x_boards)/sizeof(ni_670x_boards[0]))
114 static int ni_670x_attach(struct comedi_device * dev, struct comedi_devconfig * it);
115 static int ni_670x_detach(struct comedi_device * dev);
117 static struct comedi_driver driver_ni_670x = {
118 driver_name:"ni_670x",
120 attach:ni_670x_attach,
121 detach:ni_670x_detach,
124 COMEDI_PCI_INITCLEANUP(driver_ni_670x, ni_670x_pci_table);
126 static struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
128 static int ni_670x_find_device(struct comedi_device * dev, int bus, int slot);
130 static int ni_670x_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s,
131 struct comedi_insn * insn, unsigned int * data);
132 static int ni_670x_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
133 struct comedi_insn * insn, unsigned int * data);
134 static int ni_670x_dio_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
135 struct comedi_insn * insn, unsigned int * data);
136 static int ni_670x_dio_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
137 struct comedi_insn * insn, unsigned int * data);
139 static int ni_670x_attach(struct comedi_device * dev, struct comedi_devconfig * it)
141 struct comedi_subdevice *s;
145 printk("comedi%d: ni_670x: ", dev->minor);
147 if ((ret = alloc_private(dev, sizeof(struct ni_670x_private))) < 0)
150 ret = ni_670x_find_device(dev, it->options[0], it->options[1]);
154 ret = mite_setup(devpriv->mite);
156 printk("error setting up mite\n");
159 dev->board_name = thisboard->name;
160 dev->irq = mite_irq(devpriv->mite);
161 printk(" %s", dev->board_name);
163 if (alloc_subdevices(dev, 2) < 0)
166 s = dev->subdevices + 0;
167 /* analog output subdevice */
168 s->type = COMEDI_SUBD_AO;
169 s->subdev_flags = SDF_WRITABLE;
170 s->n_chan = thisboard->ao_chans;
172 if (s->n_chan == 32) {
173 const struct comedi_lrange **range_table_list;
175 range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
177 if (!range_table_list)
179 s->range_table_list = range_table_list;
180 for (i = 0; i < 16; i++) {
181 range_table_list[i] = &range_bipolar10;
182 range_table_list[16 + i] = &range_0_20mA;
185 s->range_table = &range_bipolar10;
187 s->insn_write = &ni_670x_ao_winsn;
188 s->insn_read = &ni_670x_ao_rinsn;
190 s = dev->subdevices + 1;
191 /* digital i/o subdevice */
192 s->type = COMEDI_SUBD_DIO;
193 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
196 s->range_table = &range_digital;
197 s->insn_bits = ni_670x_dio_insn_bits;
198 s->insn_config = ni_670x_dio_insn_config;
200 writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET); /* Config of misc registers */
201 writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET); /* Config of ao registers */
203 printk("attached\n");
208 static int ni_670x_detach(struct comedi_device * dev)
210 printk("comedi%d: ni_670x: remove\n", dev->minor);
212 if (dev->subdevices[0].range_table_list) {
213 kfree(dev->subdevices[0].range_table_list);
215 if (dev->private && devpriv->mite)
216 mite_unsetup(devpriv->mite);
219 comedi_free_irq(dev->irq, dev);
224 static int ni_670x_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s,
225 struct comedi_insn * insn, unsigned int * data)
228 int chan = CR_CHAN(insn->chanspec);
230 /* Channel number mapping :
232 NI 6703/ NI 6704 | NI 6704 Only
233 ----------------------------------------------------
234 vch(0) : 0 | ich(16) : 1
235 vch(1) : 2 | ich(17) : 3
239 vch(15) : 30 | ich(31) : 31 */
241 for (i = 0; i < insn->n; i++) {
242 writel(((chan & 15) << 1) | ((chan & 16) >> 4), devpriv->mite->daq_io_addr + AO_CHAN_OFFSET); /* First write in channel register which channel to use */
243 writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET); /* write channel value */
244 devpriv->ao_readback[chan] = data[i];
250 static int ni_670x_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
251 struct comedi_insn * insn, unsigned int * data)
254 int chan = CR_CHAN(insn->chanspec);
256 for (i = 0; i < insn->n; i++)
257 data[i] = devpriv->ao_readback[chan];
262 static int ni_670x_dio_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
263 struct comedi_insn * insn, unsigned int * data)
268 /* The insn data is a mask in data[0] and the new data
269 * in data[1], each channel cooresponding to a bit. */
271 s->state &= ~data[0];
272 s->state |= data[0] & data[1];
274 devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
277 /* on return, data[1] contains the value of the digital
279 data[1] = readl(devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
284 static int ni_670x_dio_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
285 struct comedi_insn * insn, unsigned int * data)
287 int chan = CR_CHAN(insn->chanspec);
290 case INSN_CONFIG_DIO_OUTPUT:
291 s->io_bits |= 1 << chan;
293 case INSN_CONFIG_DIO_INPUT:
294 s->io_bits &= ~(1 << chan);
296 case INSN_CONFIG_DIO_QUERY:
299 io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
306 writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);
311 static int ni_670x_find_device(struct comedi_device * dev, int bus, int slot)
313 struct mite_struct *mite;
316 for (mite = mite_devices; mite; mite = mite->next) {
320 if (bus != mite->pcidev->bus->number
321 || slot != PCI_SLOT(mite->pcidev->devfn))
325 for (i = 0; i < n_ni_670x_boards; i++) {
326 if (mite_device_id(mite) == ni_670x_boards[i].dev_id) {
327 dev->board_ptr = ni_670x_boards + i;
328 devpriv->mite = mite;
334 printk("no device found\n");