3 * Comedi driver for the Advantech PCI-1723 card.
5 * COMEDI - Linux Control and Measurement Device Interface
6 * Copyright (C) 2000 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.
21 * Description: Advantech PCI-1723
22 * Author: yonggang <rsmgnu@gmail.com>, Ian Abbott <abbotti@mev.co.uk>
23 * Devices: [Advantech] PCI-1723 (adv_pci1723)
24 * Updated: Mon, 14 Apr 2008 15:12:56 +0100
27 * Configuration Options: not applicable, uses comedi PCI auto config
29 * Subdevice 0 is 8-channel AO, 16-bit, range +/- 10 V.
31 * Subdevice 1 is 16-channel DIO. The channels are configurable as
32 * input or output in 2 groups (0 to 7, 8 to 15). Configuring any
33 * channel implicitly configures all channels in the same group.
36 * 1. Add the two milliamp ranges to the AO subdevice (0 to 20 mA,
38 * 2. Read the initial ranges and values of the AO subdevice at
39 * start-up instead of reinitializing them.
40 * 3. Implement calibration.
43 #include <linux/module.h>
44 #include <linux/pci.h>
46 #include "../comedidev.h"
49 * PCI Bar 2 I/O Register map (dev->iobase)
51 #define PCI1723_AO_REG(x) (0x00 + ((x) * 2))
52 #define PCI1723_BOARD_ID_REG 0x10
53 #define PCI1723_BOARD_ID_MASK (0xf << 0)
54 #define PCI1723_SYNC_CTRL_REG 0x12
55 #define PCI1723_SYNC_CTRL_ASYNC (0 << 0)
56 #define PCI1723_SYNC_CTRL_SYNC (1 << 0)
57 #define PCI1723_CTRL_REG 0x14
58 #define PCI1723_CTRL_BUSY (1 << 15)
59 #define PCI1723_CTRL_INIT (1 << 14)
60 #define PCI1723_CTRL_SELF (1 << 8)
61 #define PCI1723_CTRL_IDX(x) (((x) & 0x3) << 6)
62 #define PCI1723_CTRL_RANGE(x) (((x) & 0x3) << 4)
63 #define PCI1723_CTRL_GAIN (0 << 3)
64 #define PCI1723_CTRL_OFFSET (1 << 3)
65 #define PCI1723_CTRL_CHAN(x) (((x) & 0x7) << 0)
66 #define PCI1723_CALIB_CTRL_REG 0x16
67 #define PCI1723_CALIB_CTRL_CS (1 << 2)
68 #define PCI1723_CALIB_CTRL_DAT (1 << 1)
69 #define PCI1723_CALIB_CTRL_CLK (1 << 0)
70 #define PCI1723_CALIB_STROBE_REG 0x18
71 #define PCI1723_DIO_CTRL_REG 0x1a
72 #define PCI1723_DIO_CTRL_HDIO (1 << 1)
73 #define PCI1723_DIO_CTRL_LDIO (1 << 0)
74 #define PCI1723_DIO_DATA_REG 0x1c
75 #define PCI1723_CALIB_DATA_REG 0x1e
76 #define PCI1723_SYNC_STROBE_REG 0x20
77 #define PCI1723_RESET_AO_STROBE_REG 0x22
78 #define PCI1723_RESET_CALIB_STROBE_REG 0x24
79 #define PCI1723_RANGE_STROBE_REG 0x26
80 #define PCI1723_VREF_REG 0x28
81 #define PCI1723_VREF_NEG10V (0 << 0)
82 #define PCI1723_VREF_0V (1 << 0)
83 #define PCI1723_VREF_POS10V (3 << 0)
85 static int pci1723_ao_insn_write(struct comedi_device *dev,
86 struct comedi_subdevice *s,
87 struct comedi_insn *insn,
90 unsigned int chan = CR_CHAN(insn->chanspec);
93 for (i = 0; i < insn->n; i++) {
94 unsigned int val = data[i];
96 outw(val, dev->iobase + PCI1723_AO_REG(chan));
97 s->readback[chan] = val;
103 static int pci1723_dio_insn_config(struct comedi_device *dev,
104 struct comedi_subdevice *s,
105 struct comedi_insn *insn,
108 unsigned int chan = CR_CHAN(insn->chanspec);
109 unsigned int mask = (chan < 8) ? 0x00ff : 0xff00;
110 unsigned short mode = 0x0000; /* assume output */
113 ret = comedi_dio_insn_config(dev, s, insn, data, mask);
117 if (!(s->io_bits & 0x00ff))
118 mode |= PCI1723_DIO_CTRL_LDIO; /* low byte input */
119 if (!(s->io_bits & 0xff00))
120 mode |= PCI1723_DIO_CTRL_HDIO; /* high byte input */
121 outw(mode, dev->iobase + PCI1723_DIO_CTRL_REG);
126 static int pci1723_dio_insn_bits(struct comedi_device *dev,
127 struct comedi_subdevice *s,
128 struct comedi_insn *insn,
131 if (comedi_dio_update_state(s, data))
132 outw(s->state, dev->iobase + PCI1723_DIO_DATA_REG);
134 data[1] = inw(dev->iobase + PCI1723_DIO_DATA_REG);
139 static int pci1723_auto_attach(struct comedi_device *dev,
140 unsigned long context_unused)
142 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
143 struct comedi_subdevice *s;
148 ret = comedi_pci_enable(dev);
151 dev->iobase = pci_resource_start(pcidev, 2);
153 ret = comedi_alloc_subdevices(dev, 2);
157 s = &dev->subdevices[0];
158 s->type = COMEDI_SUBD_AO;
159 s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
162 s->range_table = &range_bipolar10;
163 s->insn_write = pci1723_ao_insn_write;
165 ret = comedi_alloc_subdev_readback(s);
169 /* synchronously reset all analog outputs to 0V, +/-10V range */
170 outw(PCI1723_SYNC_CTRL_SYNC, dev->iobase + PCI1723_SYNC_CTRL_REG);
171 for (i = 0; i < s->n_chan; i++) {
172 outw(PCI1723_CTRL_RANGE(0) | PCI1723_CTRL_CHAN(i),
174 outw(0, dev->iobase + PCI1723_RANGE_STROBE_REG);
176 outw(0x8000, dev->iobase + PCI1723_AO_REG(i));
177 s->readback[i] = 0x8000;
179 outw(0, dev->iobase + PCI1723_SYNC_STROBE_REG);
181 /* disable syncronous control */
182 outw(PCI1723_SYNC_CTRL_ASYNC, dev->iobase + PCI1723_SYNC_CTRL_REG);
184 s = &dev->subdevices[1];
185 s->type = COMEDI_SUBD_DIO;
186 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
189 s->range_table = &range_digital;
190 s->insn_config = pci1723_dio_insn_config;
191 s->insn_bits = pci1723_dio_insn_bits;
193 /* get initial DIO direction and state */
194 val = inw(dev->iobase + PCI1723_DIO_CTRL_REG);
195 if (!(val & PCI1723_DIO_CTRL_LDIO))
196 s->io_bits |= 0x00ff; /* low byte output */
197 if (!(val & PCI1723_DIO_CTRL_HDIO))
198 s->io_bits |= 0xff00; /* high byte output */
199 s->state = inw(dev->iobase + PCI1723_DIO_DATA_REG);
204 static struct comedi_driver adv_pci1723_driver = {
205 .driver_name = "adv_pci1723",
206 .module = THIS_MODULE,
207 .auto_attach = pci1723_auto_attach,
208 .detach = comedi_pci_detach,
211 static int adv_pci1723_pci_probe(struct pci_dev *dev,
212 const struct pci_device_id *id)
214 return comedi_pci_auto_config(dev, &adv_pci1723_driver,
218 static const struct pci_device_id adv_pci1723_pci_table[] = {
219 { PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1723) },
222 MODULE_DEVICE_TABLE(pci, adv_pci1723_pci_table);
224 static struct pci_driver adv_pci1723_pci_driver = {
225 .name = "adv_pci1723",
226 .id_table = adv_pci1723_pci_table,
227 .probe = adv_pci1723_pci_probe,
228 .remove = comedi_pci_auto_unconfig,
230 module_comedi_pci_driver(adv_pci1723_driver, adv_pci1723_pci_driver);
232 MODULE_AUTHOR("Comedi http://www.comedi.org");
233 MODULE_DESCRIPTION("Advantech PCI-1723 Comedi driver");
234 MODULE_LICENSE("GPL");