Commit | Line | Data |
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00a22431 DS |
1 | /* |
2 | comedi/drivers/pcl726.c | |
3 | ||
4 | hardware driver for Advantech cards: | |
5 | card: PCL-726, PCL-727, PCL-728 | |
6 | driver: pcl726, pcl727, pcl728 | |
7 | and for ADLink cards: | |
8 | card: ACL-6126, ACL-6128 | |
9 | driver: acl6126, acl6128 | |
10 | ||
11 | COMEDI - Linux Control and Measurement Device Interface | |
12 | Copyright (C) 1998 David A. Schleef <ds@schleef.org> | |
13 | ||
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. | |
18 | ||
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. | |
23 | ||
24 | You should have received a copy of the GNU General Public License | |
25 | along with this program; if not, write to the Free Software | |
26 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
27 | ||
28 | */ | |
29 | /* | |
30 | Driver: pcl726 | |
31 | Description: Advantech PCL-726 & compatibles | |
32 | Author: ds | |
33 | Status: untested | |
34 | Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728), | |
35 | [ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128) | |
36 | ||
37 | Interrupts are not supported. | |
38 | ||
39 | Options for PCL-726: | |
40 | [0] - IO Base | |
41 | [2]...[7] - D/A output range for channel 1-6: | |
42 | 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, | |
43 | 4: 4-20mA, 5: unknown (external reference) | |
44 | ||
45 | Options for PCL-727: | |
46 | [0] - IO Base | |
47 | [2]...[13] - D/A output range for channel 1-12: | |
48 | 0: 0-5V, 1: 0-10V, 2: +/-5V, | |
49 | 3: 4-20mA | |
50 | ||
51 | Options for PCL-728 and ACL-6128: | |
52 | [0] - IO Base | |
53 | [2], [3] - D/A output range for channel 1 and 2: | |
54 | 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, | |
55 | 4: 4-20mA, 5: 0-20mA | |
56 | ||
57 | Options for ACL-6126: | |
58 | [0] - IO Base | |
59 | [1] - IRQ (0=disable, 3, 5, 6, 7, 9, 10, 11, 12, 15) (currently ignored) | |
60 | [2]...[7] - D/A output range for channel 1-6: | |
61 | 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, | |
62 | 4: 4-20mA | |
63 | */ | |
64 | ||
65 | /* | |
66 | Thanks to Circuit Specialists for having programming info (!) on | |
67 | their web page. (http://www.cir.com/) | |
68 | */ | |
69 | ||
70 | #include "../comedidev.h" | |
71 | ||
72 | #include <linux/ioport.h> | |
73 | ||
74 | #undef ACL6126_IRQ /* no interrupt support (yet) */ | |
75 | ||
76 | #define PCL726_SIZE 16 | |
77 | #define PCL727_SIZE 32 | |
78 | #define PCL728_SIZE 8 | |
79 | ||
80 | #define PCL726_DAC0_HI 0 | |
81 | #define PCL726_DAC0_LO 1 | |
82 | ||
83 | #define PCL726_DO_HI 12 | |
84 | #define PCL726_DO_LO 13 | |
85 | #define PCL726_DI_HI 14 | |
86 | #define PCL726_DI_LO 15 | |
87 | ||
88 | #define PCL727_DO_HI 24 | |
89 | #define PCL727_DO_LO 25 | |
90 | #define PCL727_DI_HI 0 | |
91 | #define PCL727_DI_LO 1 | |
92 | ||
93 | static const comedi_lrange range_4_20mA = { 1, {RANGE_mA(4, 20)} }; | |
94 | static const comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} }; | |
95 | ||
96 | static const comedi_lrange *const rangelist_726[] = { | |
97 | &range_unipolar5, &range_unipolar10, | |
98 | &range_bipolar5, &range_bipolar10, | |
99 | &range_4_20mA, &range_unknown | |
100 | }; | |
101 | ||
102 | static const comedi_lrange *const rangelist_727[] = { | |
103 | &range_unipolar5, &range_unipolar10, | |
104 | &range_bipolar5, | |
105 | &range_4_20mA | |
106 | }; | |
107 | ||
108 | static const comedi_lrange *const rangelist_728[] = { | |
109 | &range_unipolar5, &range_unipolar10, | |
110 | &range_bipolar5, &range_bipolar10, | |
111 | &range_4_20mA, &range_0_20mA | |
112 | }; | |
113 | ||
71b5f4f1 BP |
114 | static int pcl726_attach(struct comedi_device * dev, comedi_devconfig * it); |
115 | static int pcl726_detach(struct comedi_device * dev); | |
00a22431 DS |
116 | |
117 | typedef struct { | |
118 | const char *name; // driver name | |
119 | int n_aochan; // num of D/A chans | |
120 | int num_of_ranges; // num of ranges | |
121 | unsigned int IRQbits; // allowed interrupts | |
122 | unsigned int io_range; // len of IO space | |
123 | char have_dio; // 1=card have DI/DO ports | |
124 | int di_hi; // ports for DI/DO operations | |
125 | int di_lo; | |
126 | int do_hi; | |
127 | int do_lo; | |
128 | const comedi_lrange *const *range_type_list; // list of supported ranges | |
129 | } boardtype; | |
130 | ||
131 | static const boardtype boardtypes[] = { | |
132 | {"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1, | |
133 | PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO, | |
134 | &rangelist_726[0],}, | |
135 | {"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1, | |
136 | PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO, | |
137 | &rangelist_727[0],}, | |
138 | {"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0, | |
139 | 0, 0, 0, 0, | |
140 | &rangelist_728[0],}, | |
141 | {"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1, | |
142 | PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO, | |
143 | &rangelist_726[0],}, | |
144 | {"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0, | |
145 | 0, 0, 0, 0, | |
146 | &rangelist_728[0],}, | |
147 | }; | |
148 | ||
149 | #define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype)) | |
150 | #define this_board ((const boardtype *)dev->board_ptr) | |
151 | ||
152 | static comedi_driver driver_pcl726 = { | |
153 | driver_name:"pcl726", | |
154 | module:THIS_MODULE, | |
155 | attach:pcl726_attach, | |
156 | detach:pcl726_detach, | |
157 | board_name:&boardtypes[0].name, | |
158 | num_names:n_boardtypes, | |
159 | offset:sizeof(boardtype), | |
160 | }; | |
161 | ||
162 | COMEDI_INITCLEANUP(driver_pcl726); | |
163 | ||
164 | typedef struct { | |
165 | int bipolar[12]; | |
166 | const comedi_lrange *rangelist[12]; | |
790c5541 | 167 | unsigned int ao_readback[12]; |
00a22431 DS |
168 | } pcl726_private; |
169 | #define devpriv ((pcl726_private *)dev->private) | |
170 | ||
34c43922 | 171 | static int pcl726_ao_insn(struct comedi_device * dev, struct comedi_subdevice * s, |
790c5541 | 172 | comedi_insn * insn, unsigned int * data) |
00a22431 DS |
173 | { |
174 | int hi, lo; | |
175 | int n; | |
176 | int chan = CR_CHAN(insn->chanspec); | |
177 | ||
178 | for (n = 0; n < insn->n; n++) { | |
179 | lo = data[n] & 0xff; | |
180 | hi = (data[n] >> 8) & 0xf; | |
181 | if (devpriv->bipolar[chan]) | |
182 | hi ^= 0x8; | |
183 | /* | |
184 | * the programming info did not say which order | |
185 | * to write bytes. switch the order of the next | |
186 | * two lines if you get glitches. | |
187 | */ | |
188 | outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan); | |
189 | outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan); | |
190 | devpriv->ao_readback[chan] = data[n]; | |
191 | } | |
192 | ||
193 | return n; | |
194 | } | |
195 | ||
34c43922 | 196 | static int pcl726_ao_insn_read(struct comedi_device * dev, struct comedi_subdevice * s, |
790c5541 | 197 | comedi_insn * insn, unsigned int * data) |
00a22431 DS |
198 | { |
199 | int chan = CR_CHAN(insn->chanspec); | |
200 | int n; | |
201 | ||
202 | for (n = 0; n < insn->n; n++) { | |
203 | data[n] = devpriv->ao_readback[chan]; | |
204 | } | |
205 | return n; | |
206 | } | |
207 | ||
34c43922 | 208 | static int pcl726_di_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, |
790c5541 | 209 | comedi_insn * insn, unsigned int * data) |
00a22431 DS |
210 | { |
211 | if (insn->n != 2) | |
212 | return -EINVAL; | |
213 | ||
214 | data[1] = inb(dev->iobase + this_board->di_lo) | | |
215 | (inb(dev->iobase + this_board->di_hi) << 8); | |
216 | ||
217 | return 2; | |
218 | } | |
219 | ||
34c43922 | 220 | static int pcl726_do_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, |
790c5541 | 221 | comedi_insn * insn, unsigned int * data) |
00a22431 DS |
222 | { |
223 | if (insn->n != 2) | |
224 | return -EINVAL; | |
225 | ||
226 | if (data[0]) { | |
227 | s->state &= ~data[0]; | |
228 | s->state |= data[0] & data[1]; | |
229 | } | |
230 | if (data[1] & 0x00ff) | |
231 | outb(s->state & 0xff, dev->iobase + this_board->do_lo); | |
232 | if (data[1] & 0xff00) | |
233 | outb((s->state >> 8), dev->iobase + this_board->do_hi); | |
234 | ||
235 | data[1] = s->state; | |
236 | ||
237 | return 2; | |
238 | } | |
239 | ||
71b5f4f1 | 240 | static int pcl726_attach(struct comedi_device * dev, comedi_devconfig * it) |
00a22431 | 241 | { |
34c43922 | 242 | struct comedi_subdevice *s; |
00a22431 DS |
243 | unsigned long iobase; |
244 | unsigned int iorange; | |
245 | int ret, i; | |
246 | #ifdef ACL6126_IRQ | |
247 | unsigned int irq; | |
248 | #endif | |
249 | ||
250 | iobase = it->options[0]; | |
251 | iorange = this_board->io_range; | |
252 | printk("comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor, | |
253 | this_board->name, iobase); | |
254 | if (!request_region(iobase, iorange, "pcl726")) { | |
255 | printk("I/O port conflict\n"); | |
256 | return -EIO; | |
257 | } | |
258 | ||
259 | dev->iobase = iobase; | |
260 | ||
261 | dev->board_name = this_board->name; | |
262 | ||
263 | if ((ret = alloc_private(dev, sizeof(pcl726_private))) < 0) | |
264 | return -ENOMEM; | |
265 | ||
266 | for (i = 0; i < 12; i++) { | |
267 | devpriv->bipolar[i] = 0; | |
268 | devpriv->rangelist[i] = &range_unknown; | |
269 | } | |
270 | ||
271 | #ifdef ACL6126_IRQ | |
272 | irq = 0; | |
273 | if (boardtypes[board].IRQbits != 0) { /* board support IRQ */ | |
274 | irq = it->options[1]; | |
275 | devpriv->first_chan = 2; | |
276 | if (irq) { /* we want to use IRQ */ | |
277 | if (((1 << irq) & boardtypes[board].IRQbits) == 0) { | |
278 | rt_printk | |
279 | (", IRQ %d is out of allowed range, DISABLING IT", | |
280 | irq); | |
281 | irq = 0; /* Bad IRQ */ | |
282 | } else { | |
283 | if (comedi_request_irq(irq, interrupt_pcl818, 0, | |
284 | "pcl726", dev)) { | |
285 | rt_printk | |
286 | (", unable to allocate IRQ %d, DISABLING IT", | |
287 | irq); | |
288 | irq = 0; /* Can't use IRQ */ | |
289 | } else { | |
290 | rt_printk(", irq=%d", irq); | |
291 | } | |
292 | } | |
293 | } | |
294 | } | |
295 | ||
296 | dev->irq = irq; | |
297 | #endif | |
298 | ||
299 | printk("\n"); | |
300 | ||
301 | if ((ret = alloc_subdevices(dev, 3)) < 0) | |
302 | return ret; | |
303 | ||
304 | s = dev->subdevices + 0; | |
305 | /* ao */ | |
306 | s->type = COMEDI_SUBD_AO; | |
307 | s->subdev_flags = SDF_WRITABLE | SDF_GROUND; | |
308 | s->n_chan = this_board->n_aochan; | |
309 | s->maxdata = 0xfff; | |
310 | s->len_chanlist = 1; | |
311 | s->insn_write = pcl726_ao_insn; | |
312 | s->insn_read = pcl726_ao_insn_read; | |
313 | s->range_table_list = devpriv->rangelist; | |
314 | for (i = 0; i < this_board->n_aochan; i++) { | |
315 | int j; | |
316 | ||
317 | j = it->options[2 + 1]; | |
318 | if ((j < 0) || (j >= this_board->num_of_ranges)) { | |
319 | printk("Invalid range for channel %d! Must be 0<=%d<%d\n", i, j, this_board->num_of_ranges - 1); | |
320 | j = 0; | |
321 | } | |
322 | devpriv->rangelist[i] = this_board->range_type_list[j]; | |
323 | if (devpriv->rangelist[i]->range[0].min == | |
324 | -devpriv->rangelist[i]->range[0].max) | |
325 | devpriv->bipolar[i] = 1; /* bipolar range */ | |
326 | } | |
327 | ||
328 | s = dev->subdevices + 1; | |
329 | /* di */ | |
330 | if (!this_board->have_dio) { | |
331 | s->type = COMEDI_SUBD_UNUSED; | |
332 | } else { | |
333 | s->type = COMEDI_SUBD_DI; | |
334 | s->subdev_flags = SDF_READABLE | SDF_GROUND; | |
335 | s->n_chan = 16; | |
336 | s->maxdata = 1; | |
337 | s->len_chanlist = 1; | |
338 | s->insn_bits = pcl726_di_insn_bits; | |
339 | s->range_table = &range_digital; | |
340 | } | |
341 | ||
342 | s = dev->subdevices + 2; | |
343 | /* do */ | |
344 | if (!this_board->have_dio) { | |
345 | s->type = COMEDI_SUBD_UNUSED; | |
346 | } else { | |
347 | s->type = COMEDI_SUBD_DO; | |
348 | s->subdev_flags = SDF_WRITABLE | SDF_GROUND; | |
349 | s->n_chan = 16; | |
350 | s->maxdata = 1; | |
351 | s->len_chanlist = 1; | |
352 | s->insn_bits = pcl726_do_insn_bits; | |
353 | s->range_table = &range_digital; | |
354 | } | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
71b5f4f1 | 359 | static int pcl726_detach(struct comedi_device * dev) |
00a22431 DS |
360 | { |
361 | // printk("comedi%d: pcl726: remove\n",dev->minor); | |
362 | ||
363 | #ifdef ACL6126_IRQ | |
364 | if (dev->irq) { | |
365 | comedi_free_irq(dev->irq, dev); | |
366 | } | |
367 | #endif | |
368 | ||
369 | if (dev->iobase) | |
370 | release_region(dev->iobase, this_board->io_range); | |
371 | ||
372 | return 0; | |
373 | } |