3 * Comedi driver for ADLink 6208 series cards
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: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
22 * Devices: (ADLink) PCI-6208 [adl_pci6208]
23 * (ADLink) PCI-6216 [adl_pci6216]
24 * Author: nsyeow <nsyeow@pd.jaring.my>
25 * Updated: Fri, 30 Jan 2004 14:44:27 +0800
28 * Configuration Options: not applicable, uses PCI auto config
31 #include <linux/module.h>
32 #include <linux/delay.h>
33 #include <linux/pci.h>
35 #include "../comedidev.h"
38 * PCI-6208/6216-GL register map
40 #define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x)))
41 #define PCI6208_AO_STATUS 0x00
42 #define PCI6208_AO_STATUS_DATA_SEND (1 << 0)
43 #define PCI6208_DIO 0x40
44 #define PCI6208_DIO_DO_MASK (0x0f)
45 #define PCI6208_DIO_DO_SHIFT (0)
46 #define PCI6208_DIO_DI_MASK (0xf0)
47 #define PCI6208_DIO_DI_SHIFT (4)
49 #define PCI6208_MAX_AO_CHANNELS 16
51 enum pci6208_boardid {
56 struct pci6208_board {
61 static const struct pci6208_board pci6208_boards[] = {
63 .name = "adl_pci6208",
67 .name = "adl_pci6216",
72 struct pci6208_private {
73 unsigned int ao_readback[PCI6208_MAX_AO_CHANNELS];
76 static int pci6208_ao_eoc(struct comedi_device *dev,
77 struct comedi_subdevice *s,
78 struct comedi_insn *insn,
79 unsigned long context)
83 status = inw(dev->iobase + PCI6208_AO_STATUS);
84 if ((status & PCI6208_AO_STATUS_DATA_SEND) == 0)
89 static int pci6208_ao_insn_write(struct comedi_device *dev,
90 struct comedi_subdevice *s,
91 struct comedi_insn *insn,
94 struct pci6208_private *devpriv = dev->private;
95 unsigned int chan = CR_CHAN(insn->chanspec);
96 unsigned int val = devpriv->ao_readback[chan];
100 for (i = 0; i < insn->n; i++) {
103 /* D/A transfer rate is 2.2us */
104 ret = comedi_timeout(dev, s, insn, pci6208_ao_eoc, 0);
108 /* the hardware expects two's complement values */
109 outw(comedi_offset_munge(s, val),
110 dev->iobase + PCI6208_AO_CONTROL(chan));
112 devpriv->ao_readback[chan] = val;
117 static int pci6208_ao_insn_read(struct comedi_device *dev,
118 struct comedi_subdevice *s,
119 struct comedi_insn *insn,
122 struct pci6208_private *devpriv = dev->private;
123 unsigned int chan = CR_CHAN(insn->chanspec);
126 for (i = 0; i < insn->n; i++)
127 data[i] = devpriv->ao_readback[chan];
132 static int pci6208_di_insn_bits(struct comedi_device *dev,
133 struct comedi_subdevice *s,
134 struct comedi_insn *insn,
139 val = inw(dev->iobase + PCI6208_DIO);
140 val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT;
147 static int pci6208_do_insn_bits(struct comedi_device *dev,
148 struct comedi_subdevice *s,
149 struct comedi_insn *insn,
152 if (comedi_dio_update_state(s, data))
153 outw(s->state, dev->iobase + PCI6208_DIO);
160 static int pci6208_auto_attach(struct comedi_device *dev,
161 unsigned long context)
163 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
164 const struct pci6208_board *boardinfo = NULL;
165 struct pci6208_private *devpriv;
166 struct comedi_subdevice *s;
170 if (context < ARRAY_SIZE(pci6208_boards))
171 boardinfo = &pci6208_boards[context];
174 dev->board_ptr = boardinfo;
175 dev->board_name = boardinfo->name;
177 devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
181 ret = comedi_pci_enable(dev);
184 dev->iobase = pci_resource_start(pcidev, 2);
186 ret = comedi_alloc_subdevices(dev, 3);
190 s = &dev->subdevices[0];
191 /* analog output subdevice */
192 s->type = COMEDI_SUBD_AO;
193 s->subdev_flags = SDF_WRITABLE;
194 s->n_chan = boardinfo->ao_chans;
196 s->range_table = &range_bipolar10;
197 s->insn_write = pci6208_ao_insn_write;
198 s->insn_read = pci6208_ao_insn_read;
200 s = &dev->subdevices[1];
201 /* digital input subdevice */
202 s->type = COMEDI_SUBD_DI;
203 s->subdev_flags = SDF_READABLE;
206 s->range_table = &range_digital;
207 s->insn_bits = pci6208_di_insn_bits;
209 s = &dev->subdevices[2];
210 /* digital output subdevice */
211 s->type = COMEDI_SUBD_DO;
212 s->subdev_flags = SDF_WRITABLE;
215 s->range_table = &range_digital;
216 s->insn_bits = pci6208_do_insn_bits;
219 * Get the read back signals from the digital outputs
220 * and save it as the initial state for the subdevice.
222 val = inw(dev->iobase + PCI6208_DIO);
223 val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
229 static struct comedi_driver adl_pci6208_driver = {
230 .driver_name = "adl_pci6208",
231 .module = THIS_MODULE,
232 .auto_attach = pci6208_auto_attach,
233 .detach = comedi_pci_disable,
236 static int adl_pci6208_pci_probe(struct pci_dev *dev,
237 const struct pci_device_id *id)
239 return comedi_pci_auto_config(dev, &adl_pci6208_driver,
243 static const struct pci_device_id adl_pci6208_pci_table[] = {
244 { PCI_VDEVICE(ADLINK, 0x6208), BOARD_PCI6208 },
245 { PCI_VDEVICE(ADLINK, 0x6216), BOARD_PCI6216 },
248 MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
250 static struct pci_driver adl_pci6208_pci_driver = {
251 .name = "adl_pci6208",
252 .id_table = adl_pci6208_pci_table,
253 .probe = adl_pci6208_pci_probe,
254 .remove = comedi_pci_auto_unconfig,
256 module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
258 MODULE_AUTHOR("Comedi http://www.comedi.org");
259 MODULE_DESCRIPTION("Comedi driver for ADLink 6208 series cards");
260 MODULE_LICENSE("GPL");