2 comedi/drivers/das16cs.c
3 Driver for Computer Boards PC-CARD DAS16/16.
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 2000, 2001, 2002 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.
18 PCMCIA support code for this driver is adapted from the dummy_cs.c
19 driver of the Linux PCMCIA Card Services package.
21 The initial developer of the original code is David A. Hinds
22 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
23 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
28 Description: Computer Boards PC-CARD DAS16/16
29 Devices: [ComputerBoards] PC-CARD DAS16/16 (cb_das16_cs), PC-CARD DAS16/16-AO
31 Updated: Mon, 04 Nov 2002 20:04:21 -0800
37 #include <linux/module.h>
38 #include <linux/interrupt.h>
39 #include <linux/delay.h>
41 #include "../comedidev.h"
43 #include <pcmcia/cistpl.h>
44 #include <pcmcia/ds.h>
46 #include "comedi_fc.h"
49 #define DAS16CS_ADC_DATA 0
50 #define DAS16CS_DIO_MUX 2
51 #define DAS16CS_MISC1 4
52 #define DAS16CS_MISC2 6
53 #define DAS16CS_CTR0 8
54 #define DAS16CS_CTR1 10
55 #define DAS16CS_CTR2 12
56 #define DAS16CS_CTR_CONTROL 14
57 #define DAS16CS_DIO 16
59 struct das16cs_board
{
65 static const struct das16cs_board das16cs_boards
[] = {
67 .name
= "PC-CARD DAS16/16-AO",
71 .name
= "PCM-DAS16s/16",
75 .name
= "PC-CARD DAS16/16",
76 .device_id
= 0x0000, /* unknown */
81 struct das16cs_private
{
82 unsigned short status1
;
83 unsigned short status2
;
86 static const struct comedi_lrange das16cs_ai_range
= {
95 static int das16cs_ai_eoc(struct comedi_device
*dev
,
96 struct comedi_subdevice
*s
,
97 struct comedi_insn
*insn
,
98 unsigned long context
)
102 status
= inw(dev
->iobase
+ DAS16CS_MISC1
);
108 static int das16cs_ai_rinsn(struct comedi_device
*dev
,
109 struct comedi_subdevice
*s
,
110 struct comedi_insn
*insn
, unsigned int *data
)
112 struct das16cs_private
*devpriv
= dev
->private;
113 int chan
= CR_CHAN(insn
->chanspec
);
114 int range
= CR_RANGE(insn
->chanspec
);
115 int aref
= CR_AREF(insn
->chanspec
);
119 outw(chan
, dev
->iobase
+ DAS16CS_DIO_MUX
);
121 devpriv
->status1
&= ~0xf320;
122 devpriv
->status1
|= (aref
== AREF_DIFF
) ? 0 : 0x0020;
123 outw(devpriv
->status1
, dev
->iobase
+ DAS16CS_MISC1
);
125 devpriv
->status2
&= ~0xff00;
128 devpriv
->status2
|= 0x800;
131 devpriv
->status2
|= 0x000;
134 devpriv
->status2
|= 0x100;
137 devpriv
->status2
|= 0x200;
140 outw(devpriv
->status2
, dev
->iobase
+ DAS16CS_MISC2
);
142 for (i
= 0; i
< insn
->n
; i
++) {
143 outw(0, dev
->iobase
+ DAS16CS_ADC_DATA
);
145 ret
= comedi_timeout(dev
, s
, insn
, das16cs_ai_eoc
, 0);
149 data
[i
] = inw(dev
->iobase
+ DAS16CS_ADC_DATA
);
155 static int das16cs_ao_insn_write(struct comedi_device
*dev
,
156 struct comedi_subdevice
*s
,
157 struct comedi_insn
*insn
,
160 struct das16cs_private
*devpriv
= dev
->private;
161 unsigned int chan
= CR_CHAN(insn
->chanspec
);
162 unsigned int val
= s
->readback
[chan
];
163 unsigned short status1
;
167 for (i
= 0; i
< insn
->n
; i
++) {
170 outw(devpriv
->status1
, dev
->iobase
+ DAS16CS_MISC1
);
173 status1
= devpriv
->status1
& ~0xf;
179 outw(status1
, dev
->iobase
+ DAS16CS_MISC1
);
182 for (bit
= 15; bit
>= 0; bit
--) {
183 int b
= (val
>> bit
) & 0x1;
186 outw(status1
| b
| 0x0000, dev
->iobase
+ DAS16CS_MISC1
);
188 outw(status1
| b
| 0x0004, dev
->iobase
+ DAS16CS_MISC1
);
192 * Make both DAC0CS and DAC1CS high to load
193 * the new data and update analog the output
195 outw(status1
| 0x9, dev
->iobase
+ DAS16CS_MISC1
);
197 s
->readback
[chan
] = val
;
202 static int das16cs_dio_insn_bits(struct comedi_device
*dev
,
203 struct comedi_subdevice
*s
,
204 struct comedi_insn
*insn
,
207 if (comedi_dio_update_state(s
, data
))
208 outw(s
->state
, dev
->iobase
+ DAS16CS_DIO
);
210 data
[1] = inw(dev
->iobase
+ DAS16CS_DIO
);
215 static int das16cs_dio_insn_config(struct comedi_device
*dev
,
216 struct comedi_subdevice
*s
,
217 struct comedi_insn
*insn
,
220 struct das16cs_private
*devpriv
= dev
->private;
221 unsigned int chan
= CR_CHAN(insn
->chanspec
);
230 ret
= comedi_dio_insn_config(dev
, s
, insn
, data
, mask
);
234 devpriv
->status2
&= ~0x00c0;
235 devpriv
->status2
|= (s
->io_bits
& 0xf0) ? 0x0080 : 0;
236 devpriv
->status2
|= (s
->io_bits
& 0x0f) ? 0x0040 : 0;
238 outw(devpriv
->status2
, dev
->iobase
+ DAS16CS_MISC2
);
243 static const void *das16cs_find_boardinfo(struct comedi_device
*dev
,
244 struct pcmcia_device
*link
)
246 const struct das16cs_board
*board
;
249 for (i
= 0; i
< ARRAY_SIZE(das16cs_boards
); i
++) {
250 board
= &das16cs_boards
[i
];
251 if (board
->device_id
== link
->card_id
)
258 static int das16cs_auto_attach(struct comedi_device
*dev
,
259 unsigned long context
)
261 struct pcmcia_device
*link
= comedi_to_pcmcia_dev(dev
);
262 const struct das16cs_board
*board
;
263 struct das16cs_private
*devpriv
;
264 struct comedi_subdevice
*s
;
267 board
= das16cs_find_boardinfo(dev
, link
);
270 dev
->board_ptr
= board
;
271 dev
->board_name
= board
->name
;
273 link
->config_flags
|= CONF_AUTO_SET_IO
| CONF_ENABLE_IRQ
;
274 ret
= comedi_pcmcia_enable(dev
, NULL
);
277 dev
->iobase
= link
->resource
[0]->start
;
281 devpriv
= comedi_alloc_devpriv(dev
, sizeof(*devpriv
));
285 ret
= comedi_alloc_subdevices(dev
, 3);
289 s
= &dev
->subdevices
[0];
290 /* analog input subdevice */
291 s
->type
= COMEDI_SUBD_AI
;
292 s
->subdev_flags
= SDF_READABLE
| SDF_GROUND
| SDF_DIFF
| SDF_CMD_READ
;
295 s
->range_table
= &das16cs_ai_range
;
296 s
->len_chanlist
= 16;
297 s
->insn_read
= das16cs_ai_rinsn
;
299 s
= &dev
->subdevices
[1];
300 /* analog output subdevice */
301 if (board
->n_ao_chans
) {
302 s
->type
= COMEDI_SUBD_AO
;
303 s
->subdev_flags
= SDF_WRITABLE
;
304 s
->n_chan
= board
->n_ao_chans
;
306 s
->range_table
= &range_bipolar10
;
307 s
->insn_write
= &das16cs_ao_insn_write
;
308 s
->insn_read
= comedi_readback_insn_read
;
310 ret
= comedi_alloc_subdev_readback(s
);
314 s
->type
= COMEDI_SUBD_UNUSED
;
317 s
= &dev
->subdevices
[2];
318 /* digital i/o subdevice */
319 s
->type
= COMEDI_SUBD_DIO
;
320 s
->subdev_flags
= SDF_READABLE
| SDF_WRITABLE
;
323 s
->range_table
= &range_digital
;
324 s
->insn_bits
= das16cs_dio_insn_bits
;
325 s
->insn_config
= das16cs_dio_insn_config
;
330 static struct comedi_driver driver_das16cs
= {
331 .driver_name
= "cb_das16_cs",
332 .module
= THIS_MODULE
,
333 .auto_attach
= das16cs_auto_attach
,
334 .detach
= comedi_pcmcia_disable
,
337 static int das16cs_pcmcia_attach(struct pcmcia_device
*link
)
339 return comedi_pcmcia_auto_config(link
, &driver_das16cs
);
342 static const struct pcmcia_device_id das16cs_id_table
[] = {
343 PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x0039),
344 PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4009),
347 MODULE_DEVICE_TABLE(pcmcia
, das16cs_id_table
);
349 static struct pcmcia_driver das16cs_driver
= {
350 .name
= "cb_das16_cs",
351 .owner
= THIS_MODULE
,
352 .id_table
= das16cs_id_table
,
353 .probe
= das16cs_pcmcia_attach
,
354 .remove
= comedi_pcmcia_auto_unconfig
,
356 module_comedi_pcmcia_driver(driver_das16cs
, das16cs_driver
);
358 MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
359 MODULE_DESCRIPTION("Comedi driver for Computer Boards PC-CARD DAS16/16");
360 MODULE_LICENSE("GPL");