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,
81 mask = comedi_dio_update_state(s, data);
84 outb(s->state & 0xff, dev->iobase + DIO_W);
87 val = s->state & 0xff;
88 val |= inb(dev->iobase + DIO_R) << 8;
95 static int daq700_dio_insn_config(struct comedi_device *dev,
96 struct comedi_subdevice *s,
97 struct comedi_insn *insn,
102 ret = comedi_dio_insn_config(dev, s, insn, data, 0);
106 /* The DIO channels are not configurable, fix the io_bits */
112 static int daq700_ai_rinsn(struct comedi_device *dev,
113 struct comedi_subdevice *s,
114 struct comedi_insn *insn, unsigned int *data)
119 enum { TIMEOUT = 100 };
121 chan = CR_CHAN(insn->chanspec);
122 /* write channel to multiplexer */
123 /* set mask scan bit high to disable scanning */
124 outb(chan | 0x80, dev->iobase + CMD_R1);
126 /* convert n samples */
127 for (n = 0; n < insn->n; n++) {
128 /* trigger conversion with out0 L to H */
129 outb(0x00, dev->iobase + CMD_R2); /* enable ADC conversions */
130 outb(0x30, dev->iobase + CMO_R); /* mode 0 out0 L, from H */
131 /* mode 1 out0 H, L to H, start conversion */
132 outb(0x32, dev->iobase + CMO_R);
133 /* wait for conversion to end */
134 for (i = 0; i < TIMEOUT; i++) {
135 status = inb(dev->iobase + STA_R2);
136 if ((status & 0x03) != 0) {
137 dev_info(dev->class_dev,
138 "Overflow/run Error\n");
141 status = inb(dev->iobase + STA_R1);
142 if ((status & 0x02) != 0) {
143 dev_info(dev->class_dev, "Data Error\n");
146 if ((status & 0x11) == 0x01) {
147 /* ADC conversion complete */
153 dev_info(dev->class_dev,
154 "timeout during ADC conversion\n");
158 d = inw(dev->iobase + ADFIFO_R);
159 /* mangle the data as necessary */
160 /* Bipolar Offset Binary: 0 to 4095 for -10 to +10 */
169 * Data acquisition is enabled.
170 * The counter 0 output is high.
171 * The I/O connector pin CLK1 drives counter 1 source.
172 * Multiple-channel scanning is disabled.
173 * All interrupts are disabled.
174 * The analog input range is set to +-10 V
175 * The analog input mode is single-ended.
176 * The analog input circuitry is initialized to channel 0.
177 * The A/D FIFO is cleared.
179 static void daq700_ai_config(struct comedi_device *dev,
180 struct comedi_subdevice *s)
182 unsigned long iobase = dev->iobase;
184 outb(0x80, iobase + CMD_R1); /* disable scanning, ADC to chan 0 */
185 outb(0x00, iobase + CMD_R2); /* clear all bits */
186 outb(0x00, iobase + CMD_R3); /* set +-10 range */
187 outb(0x32, iobase + CMO_R); /* config counter mode1, out0 to H */
188 outb(0x00, iobase + TIC_R); /* clear counter interrupt */
189 outb(0x00, iobase + ADCLEAR_R); /* clear the ADC FIFO */
190 inw(iobase + ADFIFO_R); /* read 16bit junk from FIFO to clear */
193 static int daq700_auto_attach(struct comedi_device *dev,
194 unsigned long context)
196 struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
197 struct comedi_subdevice *s;
200 link->config_flags |= CONF_AUTO_SET_IO;
201 ret = comedi_pcmcia_enable(dev, NULL);
204 dev->iobase = link->resource[0]->start;
206 ret = comedi_alloc_subdevices(dev, 2);
210 /* DAQCard-700 dio */
211 s = &dev->subdevices[0];
212 s->type = COMEDI_SUBD_DIO;
213 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
215 s->range_table = &range_digital;
217 s->insn_bits = daq700_dio_insn_bits;
218 s->insn_config = daq700_dio_insn_config;
222 s = &dev->subdevices[1];
223 s->type = COMEDI_SUBD_AI;
224 /* we support single-ended (ground) */
225 s->subdev_flags = SDF_READABLE | SDF_GROUND;
227 s->maxdata = (1 << 12) - 1;
228 s->range_table = &range_bipolar10;
229 s->insn_read = daq700_ai_rinsn;
230 daq700_ai_config(dev, s);
232 dev_info(dev->class_dev, "%s: %s, io 0x%lx\n",
233 dev->driver->driver_name,
240 static struct comedi_driver daq700_driver = {
241 .driver_name = "ni_daq_700",
242 .module = THIS_MODULE,
243 .auto_attach = daq700_auto_attach,
244 .detach = comedi_pcmcia_disable,
247 static int daq700_cs_attach(struct pcmcia_device *link)
249 return comedi_pcmcia_auto_config(link, &daq700_driver);
252 static const struct pcmcia_device_id daq700_cs_ids[] = {
253 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x4743),
256 MODULE_DEVICE_TABLE(pcmcia, daq700_cs_ids);
258 static struct pcmcia_driver daq700_cs_driver = {
259 .name = "ni_daq_700",
260 .owner = THIS_MODULE,
261 .id_table = daq700_cs_ids,
262 .probe = daq700_cs_attach,
263 .remove = comedi_pcmcia_auto_unconfig,
265 module_comedi_pcmcia_driver(daq700_driver, daq700_cs_driver);
267 MODULE_AUTHOR("Fred Brooks <nsaspook@nsaspook.com>");
269 "Comedi driver for National Instruments PCMCIA DAQCard-700 DIO/AI");
270 MODULE_VERSION("0.2.00");
271 MODULE_LICENSE("GPL");