2 comedi/drivers/pci1723.c
4 COMEDI - Linux Control and Measurement Device Interface
5 Copyright (C) 2000 David A. Schleef <ds@schleef.org>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
19 Description: Advantech PCI-1723
20 Author: yonggang <rsmgnu@gmail.com>, Ian Abbott <abbotti@mev.co.uk>
21 Devices: [Advantech] PCI-1723 (adv_pci1723)
22 Updated: Mon, 14 Apr 2008 15:12:56 +0100
25 Configuration Options:
26 [0] - PCI bus of device (optional)
27 [1] - PCI slot of device (optional)
29 If bus/slot is not specified, the first supported
30 PCI device found will be used.
32 Subdevice 0 is 8-channel AO, 16-bit, range +/- 10 V.
34 Subdevice 1 is 16-channel DIO. The channels are configurable as input or
35 output in 2 groups (0 to 7, 8 to 15). Configuring any channel implicitly
36 configures all channels in the same group.
40 1. Add the two milliamp ranges to the AO subdevice (0 to 20 mA, 4 to 20 mA).
41 2. Read the initial ranges and values of the AO subdevice at start-up instead
42 of reinitializing them.
43 3. Implement calibration.
46 #include <linux/module.h>
47 #include <linux/pci.h>
49 #include "../comedidev.h"
51 /* all the registers for the pci1723 board */
52 #define PCI1723_DA(N) ((N)<<1) /* W: D/A register N (0 to 7) */
54 #define PCI1723_SYN_SET 0x12 /* synchronized set register */
55 #define PCI1723_ALL_CHNNELE_SYN_STROBE 0x12
56 /* synchronized status register */
58 #define PCI1723_RANGE_CALIBRATION_MODE 0x14
59 /* range and calibration mode */
60 #define PCI1723_RANGE_CALIBRATION_STATUS 0x14
61 /* range and calibration status */
63 #define PCI1723_CONTROL_CMD_CALIBRATION_FUN 0x16
65 * SADC control command for
66 * calibration function
68 #define PCI1723_STATUS_CMD_CALIBRATION_FUN 0x16
70 * SADC control status for
71 * calibration function
74 #define PCI1723_CALIBRATION_PARA_STROBE 0x18
75 /* Calibration parameter strobe */
77 #define PCI1723_DIGITAL_IO_PORT_SET 0x1A /* Digital I/O port setting */
78 #define PCI1723_DIGITAL_IO_PORT_MODE 0x1A /* Digital I/O port mode */
80 #define PCI1723_WRITE_DIGITAL_OUTPUT_CMD 0x1C
81 /* Write digital output command */
82 #define PCI1723_READ_DIGITAL_INPUT_DATA 0x1C /* Read digital input data */
84 #define PCI1723_WRITE_CAL_CMD 0x1E /* Write calibration command */
85 #define PCI1723_READ_CAL_STATUS 0x1E /* Read calibration status */
87 #define PCI1723_SYN_STROBE 0x20 /* Synchronized strobe */
89 #define PCI1723_RESET_ALL_CHN_STROBE 0x22
90 /* Reset all D/A channels strobe */
92 #define PCI1723_RESET_CAL_CONTROL_STROBE 0x24
94 * Reset the calibration
98 #define PCI1723_CHANGE_CHA_OUTPUT_TYPE_STROBE 0x26
100 * Change D/A channels output
104 #define PCI1723_SELECT_CALIBRATION 0x28 /* Select the calibration Ref_V */
106 struct pci1723_private {
107 unsigned char da_range[8]; /* D/A output range for each channel */
108 unsigned short ao_data[8]; /* data output buffer */
112 * The pci1723 card reset;
114 static int pci1723_reset(struct comedi_device *dev)
116 struct pci1723_private *devpriv = dev->private;
119 outw(0x01, dev->iobase + PCI1723_SYN_SET);
120 /* set synchronous output mode */
122 for (i = 0; i < 8; i++) {
123 /* set all outputs to 0V */
124 devpriv->ao_data[i] = 0x8000;
125 outw(devpriv->ao_data[i], dev->iobase + PCI1723_DA(i));
126 /* set all ranges to +/- 10V */
127 devpriv->da_range[i] = 0;
128 outw(((devpriv->da_range[i] << 4) | i),
129 PCI1723_RANGE_CALIBRATION_MODE);
132 outw(0, dev->iobase + PCI1723_CHANGE_CHA_OUTPUT_TYPE_STROBE);
134 outw(0, dev->iobase + PCI1723_SYN_STROBE); /* update outputs */
136 /* set asynchronous output mode */
137 outw(0, dev->iobase + PCI1723_SYN_SET);
142 static int pci1723_insn_read_ao(struct comedi_device *dev,
143 struct comedi_subdevice *s,
144 struct comedi_insn *insn, unsigned int *data)
146 struct pci1723_private *devpriv = dev->private;
149 chan = CR_CHAN(insn->chanspec);
150 for (n = 0; n < insn->n; n++)
151 data[n] = devpriv->ao_data[chan];
159 static int pci1723_ao_write_winsn(struct comedi_device *dev,
160 struct comedi_subdevice *s,
161 struct comedi_insn *insn, unsigned int *data)
163 struct pci1723_private *devpriv = dev->private;
165 chan = CR_CHAN(insn->chanspec);
167 for (n = 0; n < insn->n; n++) {
169 devpriv->ao_data[chan] = data[n];
170 outw(data[n], dev->iobase + PCI1723_DA(chan));
177 digital i/o config/query
179 static int pci1723_dio_insn_config(struct comedi_device *dev,
180 struct comedi_subdevice *s,
181 struct comedi_insn *insn, unsigned int *data)
183 unsigned int chan = CR_CHAN(insn->chanspec);
193 ret = comedi_dio_insn_config(dev, s, insn, data, mask);
197 /* update hardware DIO mode */
198 mode = 0x0000; /* assume output */
199 if (!(s->io_bits & 0x00ff))
200 mode |= 0x0001; /* low byte input */
201 if (!(s->io_bits & 0xff00))
202 mode |= 0x0002; /* high byte input */
203 outw(mode, dev->iobase + PCI1723_DIGITAL_IO_PORT_SET);
208 static int pci1723_dio_insn_bits(struct comedi_device *dev,
209 struct comedi_subdevice *s,
210 struct comedi_insn *insn,
213 if (comedi_dio_update_state(s, data))
214 outw(s->state, dev->iobase + PCI1723_WRITE_DIGITAL_OUTPUT_CMD);
216 data[1] = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
221 static int pci1723_auto_attach(struct comedi_device *dev,
222 unsigned long context_unused)
224 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
225 struct pci1723_private *devpriv;
226 struct comedi_subdevice *s;
229 devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
233 ret = comedi_pci_enable(dev);
236 dev->iobase = pci_resource_start(pcidev, 2);
238 ret = comedi_alloc_subdevices(dev, 2);
242 s = &dev->subdevices[0];
243 dev->write_subdev = s;
244 s->type = COMEDI_SUBD_AO;
245 s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
249 s->range_table = &range_bipolar10;
250 s->insn_write = pci1723_ao_write_winsn;
251 s->insn_read = pci1723_insn_read_ao;
253 s = &dev->subdevices[1];
254 s->type = COMEDI_SUBD_DIO;
255 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
258 s->len_chanlist = 16;
259 s->range_table = &range_digital;
260 s->insn_config = pci1723_dio_insn_config;
261 s->insn_bits = pci1723_dio_insn_bits;
263 /* read DIO config */
264 switch (inw(dev->iobase + PCI1723_DIGITAL_IO_PORT_MODE) & 0x03) {
265 case 0x00: /* low byte output, high byte output */
268 case 0x01: /* low byte input, high byte output */
271 case 0x02: /* low byte output, high byte input */
274 case 0x03: /* low byte input, high byte input */
278 /* read DIO port state */
279 s->state = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
286 static void pci1723_detach(struct comedi_device *dev)
290 comedi_pci_disable(dev);
293 static struct comedi_driver adv_pci1723_driver = {
294 .driver_name = "adv_pci1723",
295 .module = THIS_MODULE,
296 .auto_attach = pci1723_auto_attach,
297 .detach = pci1723_detach,
300 static int adv_pci1723_pci_probe(struct pci_dev *dev,
301 const struct pci_device_id *id)
303 return comedi_pci_auto_config(dev, &adv_pci1723_driver,
307 static const struct pci_device_id adv_pci1723_pci_table[] = {
308 { PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1723) },
311 MODULE_DEVICE_TABLE(pci, adv_pci1723_pci_table);
313 static struct pci_driver adv_pci1723_pci_driver = {
314 .name = "adv_pci1723",
315 .id_table = adv_pci1723_pci_table,
316 .probe = adv_pci1723_pci_probe,
317 .remove = comedi_pci_auto_unconfig,
319 module_comedi_pci_driver(adv_pci1723_driver, adv_pci1723_pci_driver);
321 MODULE_AUTHOR("Comedi http://www.comedi.org");
322 MODULE_DESCRIPTION("Comedi low-level driver");
323 MODULE_LICENSE("GPL");