2 comedi/drivers/pcl726.c
4 hardware driver for Advantech cards:
5 card: PCL-726, PCL-727, PCL-728
6 driver: pcl726, pcl727, pcl728
8 card: ACL-6126, ACL-6128
9 driver: acl6126, acl6128
11 COMEDI - Linux Control and Measurement Device Interface
12 Copyright (C) 1998 David A. Schleef <ds@schleef.org>
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
26 Description: Advantech PCL-726 & compatibles
29 Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728),
30 [ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128)
32 Interrupts are not supported.
36 [2]...[7] - D/A output range for channel 1-6:
37 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
38 4: 4-20mA, 5: unknown (external reference)
42 [2]...[13] - D/A output range for channel 1-12:
43 0: 0-5V, 1: 0-10V, 2: +/-5V,
46 Options for PCL-728 and ACL-6128:
48 [2], [3] - D/A output range for channel 1 and 2:
49 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
54 [1] - IRQ (0=disable, 3, 5, 6, 7, 9, 10, 11, 12, 15) (currently ignored)
55 [2]...[7] - D/A output range for channel 1-6:
56 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
61 Thanks to Circuit Specialists for having programming info (!) on
62 their web page. (http://www.cir.com/)
65 #include "../comedidev.h"
67 #include <linux/ioport.h>
69 #undef ACL6126_IRQ /* no interrupt support (yet) */
71 #define PCL726_SIZE 16
72 #define PCL727_SIZE 32
75 #define PCL726_DAC0_HI 0
76 #define PCL726_DAC0_LO 1
78 #define PCL726_DO_HI 12
79 #define PCL726_DO_LO 13
80 #define PCL726_DI_HI 14
81 #define PCL726_DI_LO 15
83 #define PCL727_DO_HI 24
84 #define PCL727_DO_LO 25
85 #define PCL727_DI_HI 0
86 #define PCL727_DI_LO 1
88 static const struct comedi_lrange
*const rangelist_726
[] = {
89 &range_unipolar5
, &range_unipolar10
,
90 &range_bipolar5
, &range_bipolar10
,
91 &range_4_20mA
, &range_unknown
94 static const struct comedi_lrange
*const rangelist_727
[] = {
95 &range_unipolar5
, &range_unipolar10
,
100 static const struct comedi_lrange
*const rangelist_728
[] = {
101 &range_unipolar5
, &range_unipolar10
,
102 &range_bipolar5
, &range_bipolar10
,
103 &range_4_20mA
, &range_0_20mA
106 struct pcl726_board
{
108 const char *name
; /* driver name */
109 int n_aochan
; /* num of D/A chans */
110 int num_of_ranges
; /* num of ranges */
111 unsigned int IRQbits
; /* allowed interrupts */
112 unsigned int io_range
; /* len of IO space */
113 char have_dio
; /* 1=card have DI/DO ports */
114 int di_hi
; /* ports for DI/DO operations */
118 const struct comedi_lrange
*const *range_type_list
;
119 /* list of supported ranges */
122 static const struct pcl726_board boardtypes
[] = {
123 {"pcl726", 6, 6, 0x0000, PCL726_SIZE
, 1,
124 PCL726_DI_HI
, PCL726_DI_LO
, PCL726_DO_HI
, PCL726_DO_LO
,
126 {"pcl727", 12, 4, 0x0000, PCL727_SIZE
, 1,
127 PCL727_DI_HI
, PCL727_DI_LO
, PCL727_DO_HI
, PCL727_DO_LO
,
129 {"pcl728", 2, 6, 0x0000, PCL728_SIZE
, 0,
132 {"acl6126", 6, 5, 0x96e8, PCL726_SIZE
, 1,
133 PCL726_DI_HI
, PCL726_DI_LO
, PCL726_DO_HI
, PCL726_DO_LO
,
135 {"acl6128", 2, 6, 0x0000, PCL728_SIZE
, 0,
140 struct pcl726_private
{
143 const struct comedi_lrange
*rangelist
[12];
144 unsigned int ao_readback
[12];
147 static int pcl726_ao_insn(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
148 struct comedi_insn
*insn
, unsigned int *data
)
150 struct pcl726_private
*devpriv
= dev
->private;
153 int chan
= CR_CHAN(insn
->chanspec
);
155 for (n
= 0; n
< insn
->n
; n
++) {
157 hi
= (data
[n
] >> 8) & 0xf;
158 if (devpriv
->bipolar
[chan
])
161 * the programming info did not say which order
162 * to write bytes. switch the order of the next
163 * two lines if you get glitches.
165 outb(hi
, dev
->iobase
+ PCL726_DAC0_HI
+ 2 * chan
);
166 outb(lo
, dev
->iobase
+ PCL726_DAC0_LO
+ 2 * chan
);
167 devpriv
->ao_readback
[chan
] = data
[n
];
173 static int pcl726_ao_insn_read(struct comedi_device
*dev
,
174 struct comedi_subdevice
*s
,
175 struct comedi_insn
*insn
, unsigned int *data
)
177 struct pcl726_private
*devpriv
= dev
->private;
178 int chan
= CR_CHAN(insn
->chanspec
);
181 for (n
= 0; n
< insn
->n
; n
++)
182 data
[n
] = devpriv
->ao_readback
[chan
];
186 static int pcl726_di_insn_bits(struct comedi_device
*dev
,
187 struct comedi_subdevice
*s
,
188 struct comedi_insn
*insn
, unsigned int *data
)
190 const struct pcl726_board
*board
= comedi_board(dev
);
192 data
[1] = inb(dev
->iobase
+ board
->di_lo
) |
193 (inb(dev
->iobase
+ board
->di_hi
) << 8);
198 static int pcl726_do_insn_bits(struct comedi_device
*dev
,
199 struct comedi_subdevice
*s
,
200 struct comedi_insn
*insn
, unsigned int *data
)
202 const struct pcl726_board
*board
= comedi_board(dev
);
205 s
->state
&= ~data
[0];
206 s
->state
|= data
[0] & data
[1];
208 if (data
[1] & 0x00ff)
209 outb(s
->state
& 0xff, dev
->iobase
+ board
->do_lo
);
210 if (data
[1] & 0xff00)
211 outb((s
->state
>> 8), dev
->iobase
+ board
->do_hi
);
218 static int pcl726_attach(struct comedi_device
*dev
, struct comedi_devconfig
*it
)
220 const struct pcl726_board
*board
= comedi_board(dev
);
221 struct pcl726_private
*devpriv
;
222 struct comedi_subdevice
*s
;
228 ret
= comedi_request_region(dev
, it
->options
[0], board
->io_range
);
232 devpriv
= kzalloc(sizeof(*devpriv
), GFP_KERNEL
);
235 dev
->private = devpriv
;
237 for (i
= 0; i
< 12; i
++) {
238 devpriv
->bipolar
[i
] = 0;
239 devpriv
->rangelist
[i
] = &range_unknown
;
244 if (boardtypes
[board
].IRQbits
!= 0) { /* board support IRQ */
245 irq
= it
->options
[1];
246 devpriv
->first_chan
= 2;
247 if (irq
) { /* we want to use IRQ */
248 if (((1 << irq
) & boardtypes
[board
].IRQbits
) == 0) {
250 ", IRQ %d is out of allowed range,"
251 " DISABLING IT", irq
);
252 irq
= 0; /* Bad IRQ */
254 if (request_irq(irq
, interrupt_pcl818
, 0,
255 dev
->board_name
, dev
)) {
257 ", unable to allocate IRQ %d,"
258 " DISABLING IT", irq
);
259 irq
= 0; /* Can't use IRQ */
261 printk(", irq=%d", irq
);
272 ret
= comedi_alloc_subdevices(dev
, 3);
276 s
= &dev
->subdevices
[0];
278 s
->type
= COMEDI_SUBD_AO
;
279 s
->subdev_flags
= SDF_WRITABLE
| SDF_GROUND
;
280 s
->n_chan
= board
->n_aochan
;
283 s
->insn_write
= pcl726_ao_insn
;
284 s
->insn_read
= pcl726_ao_insn_read
;
285 s
->range_table_list
= devpriv
->rangelist
;
286 for (i
= 0; i
< board
->n_aochan
; i
++) {
289 j
= it
->options
[2 + 1];
290 if ((j
< 0) || (j
>= board
->num_of_ranges
)) {
292 ("Invalid range for channel %d! Must be 0<=%d<%d\n",
293 i
, j
, board
->num_of_ranges
- 1);
296 devpriv
->rangelist
[i
] = board
->range_type_list
[j
];
297 if (devpriv
->rangelist
[i
]->range
[0].min
==
298 -devpriv
->rangelist
[i
]->range
[0].max
)
299 devpriv
->bipolar
[i
] = 1; /* bipolar range */
302 s
= &dev
->subdevices
[1];
304 if (!board
->have_dio
) {
305 s
->type
= COMEDI_SUBD_UNUSED
;
307 s
->type
= COMEDI_SUBD_DI
;
308 s
->subdev_flags
= SDF_READABLE
| SDF_GROUND
;
312 s
->insn_bits
= pcl726_di_insn_bits
;
313 s
->range_table
= &range_digital
;
316 s
= &dev
->subdevices
[2];
318 if (!board
->have_dio
) {
319 s
->type
= COMEDI_SUBD_UNUSED
;
321 s
->type
= COMEDI_SUBD_DO
;
322 s
->subdev_flags
= SDF_WRITABLE
| SDF_GROUND
;
326 s
->insn_bits
= pcl726_do_insn_bits
;
327 s
->range_table
= &range_digital
;
333 static struct comedi_driver pcl726_driver
= {
334 .driver_name
= "pcl726",
335 .module
= THIS_MODULE
,
336 .attach
= pcl726_attach
,
337 .detach
= comedi_legacy_detach
,
338 .board_name
= &boardtypes
[0].name
,
339 .num_names
= ARRAY_SIZE(boardtypes
),
340 .offset
= sizeof(struct pcl726_board
),
342 module_comedi_driver(pcl726_driver
);
344 MODULE_AUTHOR("Comedi http://www.comedi.org");
345 MODULE_DESCRIPTION("Comedi low-level driver");
346 MODULE_LICENSE("GPL");