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70#include "../comedidev.h"
71
72#include <linux/ioport.h>
73
74#undef ACL6126_IRQ
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
93static const struct comedi_lrange range_4_20mA = { 1, {RANGE_mA(4, 20)} };
94static const struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
95
96static const struct comedi_lrange *const rangelist_726[] = {
97 &range_unipolar5, &range_unipolar10,
98 &range_bipolar5, &range_bipolar10,
99 &range_4_20mA, &range_unknown
100};
101
102static const struct comedi_lrange *const rangelist_727[] = {
103 &range_unipolar5, &range_unipolar10,
104 &range_bipolar5,
105 &range_4_20mA
106};
107
108static const struct comedi_lrange *const rangelist_728[] = {
109 &range_unipolar5, &range_unipolar10,
110 &range_bipolar5, &range_bipolar10,
111 &range_4_20mA, &range_0_20mA
112};
113
114static int pcl726_attach(struct comedi_device *dev,
115 struct comedi_devconfig *it);
116static int pcl726_detach(struct comedi_device *dev);
117
118struct pcl726_board {
119
120 const char *name;
121 int n_aochan;
122 int num_of_ranges;
123 unsigned int IRQbits;
124 unsigned int io_range;
125 char have_dio;
126 int di_hi;
127 int di_lo;
128 int do_hi;
129 int do_lo;
130 const struct comedi_lrange *const *range_type_list;
131
132};
133
134static const struct pcl726_board boardtypes[] = {
135 {"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
136 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
137 &rangelist_726[0],},
138 {"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
139 PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
140 &rangelist_727[0],},
141 {"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
142 0, 0, 0, 0,
143 &rangelist_728[0],},
144 {"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
145 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
146 &rangelist_726[0],},
147 {"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
148 0, 0, 0, 0,
149 &rangelist_728[0],},
150};
151
152#define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl726_board))
153#define this_board ((const struct pcl726_board *)dev->board_ptr)
154
155static struct comedi_driver driver_pcl726 = {
156 .driver_name = "pcl726",
157 .module = THIS_MODULE,
158 .attach = pcl726_attach,
159 .detach = pcl726_detach,
160 .board_name = &boardtypes[0].name,
161 .num_names = n_boardtypes,
162 .offset = sizeof(struct pcl726_board),
163};
164
165static int __init driver_pcl726_init_module(void)
166{
167 return comedi_driver_register(&driver_pcl726);
168}
169
170static void __exit driver_pcl726_cleanup_module(void)
171{
172 comedi_driver_unregister(&driver_pcl726);
173}
174
175module_init(driver_pcl726_init_module);
176module_exit(driver_pcl726_cleanup_module);
177
178struct pcl726_private {
179
180 int bipolar[12];
181 const struct comedi_lrange *rangelist[12];
182 unsigned int ao_readback[12];
183};
184
185#define devpriv ((struct pcl726_private *)dev->private)
186
187static int pcl726_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
188 struct comedi_insn *insn, unsigned int *data)
189{
190 int hi, lo;
191 int n;
192 int chan = CR_CHAN(insn->chanspec);
193
194 for (n = 0; n < insn->n; n++) {
195 lo = data[n] & 0xff;
196 hi = (data[n] >> 8) & 0xf;
197 if (devpriv->bipolar[chan])
198 hi ^= 0x8;
199
200
201
202
203
204 outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan);
205 outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan);
206 devpriv->ao_readback[chan] = data[n];
207 }
208
209 return n;
210}
211
212static int pcl726_ao_insn_read(struct comedi_device *dev,
213 struct comedi_subdevice *s,
214 struct comedi_insn *insn, unsigned int *data)
215{
216 int chan = CR_CHAN(insn->chanspec);
217 int n;
218
219 for (n = 0; n < insn->n; n++)
220 data[n] = devpriv->ao_readback[chan];
221 return n;
222}
223
224static int pcl726_di_insn_bits(struct comedi_device *dev,
225 struct comedi_subdevice *s,
226 struct comedi_insn *insn, unsigned int *data)
227{
228 if (insn->n != 2)
229 return -EINVAL;
230
231 data[1] = inb(dev->iobase + this_board->di_lo) |
232 (inb(dev->iobase + this_board->di_hi) << 8);
233
234 return 2;
235}
236
237static int pcl726_do_insn_bits(struct comedi_device *dev,
238 struct comedi_subdevice *s,
239 struct comedi_insn *insn, unsigned int *data)
240{
241 if (insn->n != 2)
242 return -EINVAL;
243
244 if (data[0]) {
245 s->state &= ~data[0];
246 s->state |= data[0] & data[1];
247 }
248 if (data[1] & 0x00ff)
249 outb(s->state & 0xff, dev->iobase + this_board->do_lo);
250 if (data[1] & 0xff00)
251 outb((s->state >> 8), dev->iobase + this_board->do_hi);
252
253 data[1] = s->state;
254
255 return 2;
256}
257
258static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
259{
260 struct comedi_subdevice *s;
261 unsigned long iobase;
262 unsigned int iorange;
263 int ret, i;
264#ifdef ACL6126_IRQ
265 unsigned int irq;
266#endif
267
268 iobase = it->options[0];
269 iorange = this_board->io_range;
270 printk(KERN_WARNING "comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor,
271 this_board->name, iobase);
272 if (!request_region(iobase, iorange, "pcl726")) {
273 printk(KERN_WARNING "I/O port conflict\n");
274 return -EIO;
275 }
276
277 dev->iobase = iobase;
278
279 dev->board_name = this_board->name;
280
281 ret = alloc_private(dev, sizeof(struct pcl726_private));
282 if (ret < 0)
283 return -ENOMEM;
284
285 for (i = 0; i < 12; i++) {
286 devpriv->bipolar[i] = 0;
287 devpriv->rangelist[i] = &range_unknown;
288 }
289
290#ifdef ACL6126_IRQ
291 irq = 0;
292 if (boardtypes[board].IRQbits != 0) {
293 irq = it->options[1];
294 devpriv->first_chan = 2;
295 if (irq) {
296 if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
297 printk(KERN_WARNING
298 ", IRQ %d is out of allowed range,"
299 " DISABLING IT", irq);
300 irq = 0;
301 } else {
302 if (request_irq(irq, interrupt_pcl818, 0,
303 "pcl726", dev)) {
304 printk(KERN_WARNING
305 ", unable to allocate IRQ %d,"
306 " DISABLING IT", irq);
307 irq = 0;
308 } else {
309 printk(", irq=%d", irq);
310 }
311 }
312 }
313 }
314
315 dev->irq = irq;
316#endif
317
318 printk("\n");
319
320 ret = alloc_subdevices(dev, 3);
321 if (ret < 0)
322 return ret;
323
324 s = dev->subdevices + 0;
325
326 s->type = COMEDI_SUBD_AO;
327 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
328 s->n_chan = this_board->n_aochan;
329 s->maxdata = 0xfff;
330 s->len_chanlist = 1;
331 s->insn_write = pcl726_ao_insn;
332 s->insn_read = pcl726_ao_insn_read;
333 s->range_table_list = devpriv->rangelist;
334 for (i = 0; i < this_board->n_aochan; i++) {
335 int j;
336
337 j = it->options[2 + 1];
338 if ((j < 0) || (j >= this_board->num_of_ranges)) {
339 printk
340 ("Invalid range for channel %d! Must be 0<=%d<%d\n",
341 i, j, this_board->num_of_ranges - 1);
342 j = 0;
343 }
344 devpriv->rangelist[i] = this_board->range_type_list[j];
345 if (devpriv->rangelist[i]->range[0].min ==
346 -devpriv->rangelist[i]->range[0].max)
347 devpriv->bipolar[i] = 1;
348 }
349
350 s = dev->subdevices + 1;
351
352 if (!this_board->have_dio) {
353 s->type = COMEDI_SUBD_UNUSED;
354 } else {
355 s->type = COMEDI_SUBD_DI;
356 s->subdev_flags = SDF_READABLE | SDF_GROUND;
357 s->n_chan = 16;
358 s->maxdata = 1;
359 s->len_chanlist = 1;
360 s->insn_bits = pcl726_di_insn_bits;
361 s->range_table = &range_digital;
362 }
363
364 s = dev->subdevices + 2;
365
366 if (!this_board->have_dio) {
367 s->type = COMEDI_SUBD_UNUSED;
368 } else {
369 s->type = COMEDI_SUBD_DO;
370 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
371 s->n_chan = 16;
372 s->maxdata = 1;
373 s->len_chanlist = 1;
374 s->insn_bits = pcl726_do_insn_bits;
375 s->range_table = &range_digital;
376 }
377
378 return 0;
379}
380
381static int pcl726_detach(struct comedi_device *dev)
382{
383
384
385#ifdef ACL6126_IRQ
386 if (dev->irq)
387 free_irq(dev->irq, dev);
388#endif
389
390 if (dev->iobase)
391 release_region(dev->iobase, this_board->io_range);
392
393 return 0;
394}
395
396MODULE_AUTHOR("Comedi http://www.comedi.org");
397MODULE_DESCRIPTION("Comedi low-level driver");
398MODULE_LICENSE("GPL");
399
