1 /*******************************************************************************
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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *******************************************************************************/
24 Description: Advantech PCI-1723
25 Author: yonggang <rsmgnu@gmail.com>, Ian Abbott <abbotti@mev.co.uk>
26 Devices: [Advantech] PCI-1723 (adv_pci1723)
27 Updated: Mon, 14 Apr 2008 15:12:56 +0100
30 Configuration Options:
31 [0] - PCI bus of device (optional)
32 [1] - PCI slot of device (optional)
34 If bus/slot is not specified, the first supported
35 PCI device found will be used.
37 Subdevice 0 is 8-channel AO, 16-bit, range +/- 10 V.
39 Subdevice 1 is 16-channel DIO. The channels are configurable as input or
40 output in 2 groups (0 to 7, 8 to 15). Configuring any channel implicitly
41 configures all channels in the same group.
45 1. Add the two milliamp ranges to the AO subdevice (0 to 20 mA, 4 to 20 mA).
46 2. Read the initial ranges and values of the AO subdevice at start-up instead
47 of reinitializing them.
48 3. Implement calibration.
51 #include <linux/pci.h>
53 #include "../comedidev.h"
55 /* all the registers for the pci1723 board */
56 #define PCI1723_DA(N) ((N)<<1) /* W: D/A register N (0 to 7) */
58 #define PCI1723_SYN_SET 0x12 /* synchronized set register */
59 #define PCI1723_ALL_CHNNELE_SYN_STROBE 0x12
60 /* synchronized status register */
62 #define PCI1723_RANGE_CALIBRATION_MODE 0x14
63 /* range and calibration mode */
64 #define PCI1723_RANGE_CALIBRATION_STATUS 0x14
65 /* range and calibration status */
67 #define PCI1723_CONTROL_CMD_CALIBRATION_FUN 0x16
69 * SADC control command for
70 * calibration function
72 #define PCI1723_STATUS_CMD_CALIBRATION_FUN 0x16
74 * SADC control status for
75 * calibration function
78 #define PCI1723_CALIBRATION_PARA_STROBE 0x18
79 /* Calibration parameter strobe */
81 #define PCI1723_DIGITAL_IO_PORT_SET 0x1A /* Digital I/O port setting */
82 #define PCI1723_DIGITAL_IO_PORT_MODE 0x1A /* Digital I/O port mode */
84 #define PCI1723_WRITE_DIGITAL_OUTPUT_CMD 0x1C
85 /* Write digital output command */
86 #define PCI1723_READ_DIGITAL_INPUT_DATA 0x1C /* Read digital input data */
88 #define PCI1723_WRITE_CAL_CMD 0x1E /* Write calibration command */
89 #define PCI1723_READ_CAL_STATUS 0x1E /* Read calibration status */
91 #define PCI1723_SYN_STROBE 0x20 /* Synchronized strobe */
93 #define PCI1723_RESET_ALL_CHN_STROBE 0x22
94 /* Reset all D/A channels strobe */
96 #define PCI1723_RESET_CAL_CONTROL_STROBE 0x24
98 * Reset the calibration
102 #define PCI1723_CHANGE_CHA_OUTPUT_TYPE_STROBE 0x26
104 * Change D/A channels output
108 #define PCI1723_SELECT_CALIBRATION 0x28 /* Select the calibration Ref_V */
110 struct pci1723_private {
111 unsigned char da_range[8]; /* D/A output range for each channel */
112 short ao_data[8]; /* data output buffer */
116 * The pci1723 card reset;
118 static int pci1723_reset(struct comedi_device *dev)
120 struct pci1723_private *devpriv = dev->private;
123 outw(0x01, dev->iobase + PCI1723_SYN_SET);
124 /* set synchronous output mode */
126 for (i = 0; i < 8; i++) {
127 /* set all outputs to 0V */
128 devpriv->ao_data[i] = 0x8000;
129 outw(devpriv->ao_data[i], dev->iobase + PCI1723_DA(i));
130 /* set all ranges to +/- 10V */
131 devpriv->da_range[i] = 0;
132 outw(((devpriv->da_range[i] << 4) | i),
133 PCI1723_RANGE_CALIBRATION_MODE);
136 outw(0, dev->iobase + PCI1723_CHANGE_CHA_OUTPUT_TYPE_STROBE);
138 outw(0, dev->iobase + PCI1723_SYN_STROBE); /* update outputs */
140 /* set asynchronous output mode */
141 outw(0, dev->iobase + PCI1723_SYN_SET);
146 static int pci1723_insn_read_ao(struct comedi_device *dev,
147 struct comedi_subdevice *s,
148 struct comedi_insn *insn, unsigned int *data)
150 struct pci1723_private *devpriv = dev->private;
153 chan = CR_CHAN(insn->chanspec);
154 for (n = 0; n < insn->n; n++)
155 data[n] = devpriv->ao_data[chan];
163 static int pci1723_ao_write_winsn(struct comedi_device *dev,
164 struct comedi_subdevice *s,
165 struct comedi_insn *insn, unsigned int *data)
167 struct pci1723_private *devpriv = dev->private;
169 chan = CR_CHAN(insn->chanspec);
171 for (n = 0; n < insn->n; n++) {
173 devpriv->ao_data[chan] = data[n];
174 outw(data[n], dev->iobase + PCI1723_DA(chan));
181 digital i/o config/query
183 static int pci1723_dio_insn_config(struct comedi_device *dev,
184 struct comedi_subdevice *s,
185 struct comedi_insn *insn, unsigned int *data)
189 unsigned short dio_mode;
191 mask = 1 << CR_CHAN(insn->chanspec);
198 case INSN_CONFIG_DIO_INPUT:
201 case INSN_CONFIG_DIO_OUTPUT:
204 case INSN_CONFIG_DIO_QUERY:
205 data[1] = (s->io_bits & bits) ? COMEDI_OUTPUT : COMEDI_INPUT;
211 /* update hardware DIO mode */
212 dio_mode = 0x0000; /* low byte output, high byte output */
213 if ((s->io_bits & 0x00FF) == 0)
214 dio_mode |= 0x0001; /* low byte input */
215 if ((s->io_bits & 0xFF00) == 0)
216 dio_mode |= 0x0002; /* high byte input */
217 outw(dio_mode, dev->iobase + PCI1723_DIGITAL_IO_PORT_SET);
222 digital i/o bits read/write
224 static int pci1723_dio_insn_bits(struct comedi_device *dev,
225 struct comedi_subdevice *s,
226 struct comedi_insn *insn, unsigned int *data)
229 s->state &= ~data[0];
230 s->state |= (data[0] & data[1]);
231 outw(s->state, dev->iobase + PCI1723_WRITE_DIGITAL_OUTPUT_CMD);
233 data[1] = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
237 static int pci1723_auto_attach(struct comedi_device *dev,
238 unsigned long context_unused)
240 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
241 struct pci1723_private *devpriv;
242 struct comedi_subdevice *s;
245 devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
248 dev->private = devpriv;
250 ret = comedi_pci_enable(dev);
253 dev->iobase = pci_resource_start(pcidev, 2);
255 ret = comedi_alloc_subdevices(dev, 2);
259 s = &dev->subdevices[0];
260 dev->write_subdev = s;
261 s->type = COMEDI_SUBD_AO;
262 s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
266 s->range_table = &range_bipolar10;
267 s->insn_write = pci1723_ao_write_winsn;
268 s->insn_read = pci1723_insn_read_ao;
270 s = &dev->subdevices[1];
271 s->type = COMEDI_SUBD_DIO;
272 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
275 s->len_chanlist = 16;
276 s->range_table = &range_digital;
277 s->insn_config = pci1723_dio_insn_config;
278 s->insn_bits = pci1723_dio_insn_bits;
280 /* read DIO config */
281 switch (inw(dev->iobase + PCI1723_DIGITAL_IO_PORT_MODE) & 0x03) {
282 case 0x00: /* low byte output, high byte output */
285 case 0x01: /* low byte input, high byte output */
288 case 0x02: /* low byte output, high byte input */
291 case 0x03: /* low byte input, high byte input */
295 /* read DIO port state */
296 s->state = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
300 dev_info(dev->class_dev, "%s attached\n", dev->board_name);
305 static void pci1723_detach(struct comedi_device *dev)
309 comedi_pci_disable(dev);
312 static struct comedi_driver adv_pci1723_driver = {
313 .driver_name = "adv_pci1723",
314 .module = THIS_MODULE,
315 .auto_attach = pci1723_auto_attach,
316 .detach = pci1723_detach,
319 static int adv_pci1723_pci_probe(struct pci_dev *dev,
320 const struct pci_device_id *id)
322 return comedi_pci_auto_config(dev, &adv_pci1723_driver,
326 static DEFINE_PCI_DEVICE_TABLE(adv_pci1723_pci_table) = {
327 { PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1723) },
330 MODULE_DEVICE_TABLE(pci, adv_pci1723_pci_table);
332 static struct pci_driver adv_pci1723_pci_driver = {
333 .name = "adv_pci1723",
334 .id_table = adv_pci1723_pci_table,
335 .probe = adv_pci1723_pci_probe,
336 .remove = comedi_pci_auto_unconfig,
338 module_comedi_pci_driver(adv_pci1723_driver, adv_pci1723_pci_driver);
340 MODULE_AUTHOR("Comedi http://www.comedi.org");
341 MODULE_DESCRIPTION("Comedi low-level driver");
342 MODULE_LICENSE("GPL");