2 * comedi/drivers/ni_daq_700.c
3 * Driver for DAQCard-700 DIO/AI
6 * COMEDI - Linux Control and Measurement Device Interface
7 * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
22 Description: National Instruments PCMCIA DAQCard-700 DIO only
23 Author: Fred Brooks <nsaspook@nsaspook.com>,
24 based on ni_daq_dio24 by Daniel Vecino Castel <dvecino@able.es>
25 Devices: [National Instruments] PCMCIA DAQ-Card-700 (ni_daq_700)
27 Updated: Wed, 19 Sep 2012 12:07:20 +0000
29 The daqcard-700 appears in Comedi as a digital I/O subdevice (0) with
30 16 channels and a analog input subdevice (1) with 16 single-ended channels.
32 Digital: The channel 0 corresponds to the daqcard-700's output
33 port, bit 0; channel 8 corresponds to the input port, bit 0.
35 Digital direction configuration: channels 0-7 output, 8-15 input (8225 device
36 emu as port A output, port B input, port C N/A).
38 Analog: The input range is 0 to 4095 for -10 to +10 volts
39 IRQ is assigned but not used.
41 Version 0.1 Original DIO only driver
42 Version 0.2 DIO and basic AI analog input support on 16 se channels
44 Manuals: Register level: http://www.ni.com/pdf/manuals/340698.pdf
45 User Manual: http://www.ni.com/pdf/manuals/320676d.pdf
48 #include <linux/module.h>
49 #include <linux/delay.h>
50 #include <linux/interrupt.h>
52 #include "../comedidev.h"
54 #include <pcmcia/cistpl.h>
55 #include <pcmcia/ds.h>
57 /* daqcard700 registers */
58 #define DIO_W 0x04 /* WO 8bit */
59 #define DIO_R 0x05 /* RO 8bit */
60 #define CMD_R1 0x00 /* WO 8bit */
61 #define CMD_R2 0x07 /* RW 8bit */
62 #define CMD_R3 0x05 /* W0 8bit */
63 #define STA_R1 0x00 /* RO 8bit */
64 #define STA_R2 0x01 /* RO 8bit */
65 #define ADFIFO_R 0x02 /* RO 16bit */
66 #define ADCLEAR_R 0x01 /* WO 8bit */
67 #define CDA_R0 0x08 /* RW 8bit */
68 #define CDA_R1 0x09 /* RW 8bit */
69 #define CDA_R2 0x0A /* RW 8bit */
70 #define CMO_R 0x0B /* RO 8bit */
71 #define TIC_R 0x06 /* WO 8bit */
73 static int daq700_dio_insn_bits(struct comedi_device *dev,
74 struct comedi_subdevice *s,
75 struct comedi_insn *insn, unsigned int *data)
79 s->state |= (data[0] & data[1]);
82 outb(s->state & 0xff, dev->iobase + DIO_W);
85 data[1] = s->state & 0xff;
86 data[1] |= inb(dev->iobase + DIO_R) << 8;
91 static int daq700_dio_insn_config(struct comedi_device *dev,
92 struct comedi_subdevice *s,
93 struct comedi_insn *insn,
98 ret = comedi_dio_insn_config(dev, s, insn, data, 0);
102 /* The DIO channels are not configurable, fix the io_bits */
108 static int daq700_ai_rinsn(struct comedi_device *dev,
109 struct comedi_subdevice *s,
110 struct comedi_insn *insn, unsigned int *data)
115 enum { TIMEOUT = 100 };
117 chan = CR_CHAN(insn->chanspec);
118 /* write channel to multiplexer */
119 /* set mask scan bit high to disable scanning */
120 outb(chan | 0x80, dev->iobase + CMD_R1);
122 /* convert n samples */
123 for (n = 0; n < insn->n; n++) {
124 /* trigger conversion with out0 L to H */
125 outb(0x00, dev->iobase + CMD_R2); /* enable ADC conversions */
126 outb(0x30, dev->iobase + CMO_R); /* mode 0 out0 L, from H */
127 /* mode 1 out0 H, L to H, start conversion */
128 outb(0x32, dev->iobase + CMO_R);
129 /* wait for conversion to end */
130 for (i = 0; i < TIMEOUT; i++) {
131 status = inb(dev->iobase + STA_R2);
132 if ((status & 0x03) != 0) {
133 dev_info(dev->class_dev,
134 "Overflow/run Error\n");
137 status = inb(dev->iobase + STA_R1);
138 if ((status & 0x02) != 0) {
139 dev_info(dev->class_dev, "Data Error\n");
142 if ((status & 0x11) == 0x01) {
143 /* ADC conversion complete */
149 dev_info(dev->class_dev,
150 "timeout during ADC conversion\n");
154 d = inw(dev->iobase + ADFIFO_R);
155 /* mangle the data as necessary */
156 /* Bipolar Offset Binary: 0 to 4095 for -10 to +10 */
165 * Data acquisition is enabled.
166 * The counter 0 output is high.
167 * The I/O connector pin CLK1 drives counter 1 source.
168 * Multiple-channel scanning is disabled.
169 * All interrupts are disabled.
170 * The analog input range is set to +-10 V
171 * The analog input mode is single-ended.
172 * The analog input circuitry is initialized to channel 0.
173 * The A/D FIFO is cleared.
175 static void daq700_ai_config(struct comedi_device *dev,
176 struct comedi_subdevice *s)
178 unsigned long iobase = dev->iobase;
180 outb(0x80, iobase + CMD_R1); /* disable scanning, ADC to chan 0 */
181 outb(0x00, iobase + CMD_R2); /* clear all bits */
182 outb(0x00, iobase + CMD_R3); /* set +-10 range */
183 outb(0x32, iobase + CMO_R); /* config counter mode1, out0 to H */
184 outb(0x00, iobase + TIC_R); /* clear counter interrupt */
185 outb(0x00, iobase + ADCLEAR_R); /* clear the ADC FIFO */
186 inw(iobase + ADFIFO_R); /* read 16bit junk from FIFO to clear */
189 static int daq700_auto_attach(struct comedi_device *dev,
190 unsigned long context)
192 struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
193 struct comedi_subdevice *s;
196 link->config_flags |= CONF_AUTO_SET_IO;
197 ret = comedi_pcmcia_enable(dev, NULL);
200 dev->iobase = link->resource[0]->start;
202 ret = comedi_alloc_subdevices(dev, 2);
206 /* DAQCard-700 dio */
207 s = &dev->subdevices[0];
208 s->type = COMEDI_SUBD_DIO;
209 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
211 s->range_table = &range_digital;
213 s->insn_bits = daq700_dio_insn_bits;
214 s->insn_config = daq700_dio_insn_config;
219 s = &dev->subdevices[1];
220 s->type = COMEDI_SUBD_AI;
221 /* we support single-ended (ground) */
222 s->subdev_flags = SDF_READABLE | SDF_GROUND;
224 s->maxdata = (1 << 12) - 1;
225 s->range_table = &range_bipolar10;
226 s->insn_read = daq700_ai_rinsn;
227 daq700_ai_config(dev, s);
229 dev_info(dev->class_dev, "%s: %s, io 0x%lx\n",
230 dev->driver->driver_name,
237 static struct comedi_driver daq700_driver = {
238 .driver_name = "ni_daq_700",
239 .module = THIS_MODULE,
240 .auto_attach = daq700_auto_attach,
241 .detach = comedi_pcmcia_disable,
244 static int daq700_cs_attach(struct pcmcia_device *link)
246 return comedi_pcmcia_auto_config(link, &daq700_driver);
249 static const struct pcmcia_device_id daq700_cs_ids[] = {
250 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x4743),
253 MODULE_DEVICE_TABLE(pcmcia, daq700_cs_ids);
255 static struct pcmcia_driver daq700_cs_driver = {
256 .name = "ni_daq_700",
257 .owner = THIS_MODULE,
258 .id_table = daq700_cs_ids,
259 .probe = daq700_cs_attach,
260 .remove = comedi_pcmcia_auto_unconfig,
262 module_comedi_pcmcia_driver(daq700_driver, daq700_cs_driver);
264 MODULE_AUTHOR("Fred Brooks <nsaspook@nsaspook.com>");
266 "Comedi driver for National Instruments PCMCIA DAQCard-700 DIO/AI");
267 MODULE_VERSION("0.2.00");
268 MODULE_LICENSE("GPL");