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Staging: comedi: Add MODULE_LICENSE and similar to NI modules
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / staging / comedi / drivers / ni_65xx.c
blob403fc0997d37d965d893a7d7fcb6edfefb235435
1 /*
2 comedi/drivers/ni_6514.c
3 driver for National Instruments PCI-6514
4
5 Copyright (C) 2006 Jon Grierson <jd@renko.co.uk>
6 Copyright (C) 2006 Frank Mori Hess <fmhess@users.sourceforge.net>
7
8 COMEDI - Linux Control and Measurement Device Interface
9 Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org>
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24
25 */
26 /*
27 Driver: ni_65xx
28 Description: National Instruments 65xx static dio boards
29 Author: Jon Grierson <jd@renko.co.uk>,
30 Frank Mori Hess <fmhess@users.sourceforge.net>
31 Status: testing
32 Devices: [National Instruments] PCI-6509 (ni_65xx), PXI-6509, PCI-6510,
33 PCI-6511, PXI-6511, PCI-6512, PXI-6512, PCI-6513, PXI-6513, PCI-6514,
34 PXI-6514, PCI-6515, PXI-6515, PCI-6516, PCI-6517, PCI-6518, PCI-6519,
35 PCI-6520, PCI-6521, PXI-6521, PCI-6528, PXI-6528
36 Updated: Wed Oct 18 08:59:11 EDT 2006
37
38 Based on the PCI-6527 driver by ds.
39 The interrupt subdevice (subdevice 3) is probably broken for all boards
40 except maybe the 6514.
41
42 */
43
44 /*
45 Manuals (available from ftp://ftp.natinst.com/support/manuals)
46
47 370106b.pdf 6514 Register Level Programmer Manual
48
49 */
50
51 #define _GNU_SOURCE
52 #define DEBUG 1
53 #define DEBUG_FLAGS
54 #include <linux/interrupt.h>
55 #include <linux/slab.h>
56 #include "../comedidev.h"
57
58 #include "mite.h"
59
60 #define NI6514_DIO_SIZE 4096
61 #define NI6514_MITE_SIZE 4096
62
63 #define NI_65XX_MAX_NUM_PORTS 12
64 static const unsigned ni_65xx_channels_per_port = 8;
65 static const unsigned ni_65xx_port_offset = 0x10;
66
67 static inline unsigned Port_Data(unsigned port)
68 {
69 return 0x40 + port * ni_65xx_port_offset;
70 }
71
72 static inline unsigned Port_Select(unsigned port)
73 {
74 return 0x41 + port * ni_65xx_port_offset;
75 }
76
77 static inline unsigned Rising_Edge_Detection_Enable(unsigned port)
78 {
79 return 0x42 + port * ni_65xx_port_offset;
80 }
81
82 static inline unsigned Falling_Edge_Detection_Enable(unsigned port)
83 {
84 return 0x43 + port * ni_65xx_port_offset;
85 }
86
87 static inline unsigned Filter_Enable(unsigned port)
88 {
89 return 0x44 + port * ni_65xx_port_offset;
90 }
91
92 #define ID_Register 0x00
93
94 #define Clear_Register 0x01
95 #define ClrEdge 0x08
96 #define ClrOverflow 0x04
97
98 #define Filter_Interval 0x08
99
100 #define Change_Status 0x02
101 #define MasterInterruptStatus 0x04
102 #define Overflow 0x02
103 #define EdgeStatus 0x01
104
105 #define Master_Interrupt_Control 0x03
106 #define FallingEdgeIntEnable 0x10
107 #define RisingEdgeIntEnable 0x08
108 #define MasterInterruptEnable 0x04
109 #define OverflowIntEnable 0x02
110 #define EdgeIntEnable 0x01
111
112 static int ni_65xx_attach(struct comedi_device *dev,
113 struct comedi_devconfig *it);
114 static int ni_65xx_detach(struct comedi_device *dev);
115 static struct comedi_driver driver_ni_65xx = {
116 .driver_name = "ni_65xx",
117 .module = THIS_MODULE,
118 .attach = ni_65xx_attach,
119 .detach = ni_65xx_detach,
120 };
121
122 struct ni_65xx_board {
123
124 int dev_id;
125 const char *name;
126 unsigned num_dio_ports;
127 unsigned num_di_ports;
128 unsigned num_do_ports;
129 unsigned invert_outputs:1;
130 };
131
132 static const struct ni_65xx_board ni_65xx_boards[] = {
133 {
134 .dev_id = 0x7085,
135 .name = "pci-6509",
136 .num_dio_ports = 12,
137 .invert_outputs = 0},
138 {
139 .dev_id = 0x1710,
140 .name = "pxi-6509",
141 .num_dio_ports = 12,
142 .invert_outputs = 0},
143 {
144 .dev_id = 0x7124,
145 .name = "pci-6510",
146 .num_di_ports = 4},
147 {
148 .dev_id = 0x70c3,
149 .name = "pci-6511",
150 .num_di_ports = 8},
151 {
152 .dev_id = 0x70d3,
153 .name = "pxi-6511",
154 .num_di_ports = 8},
155 {
156 .dev_id = 0x70cc,
157 .name = "pci-6512",
158 .num_do_ports = 8},
159 {
160 .dev_id = 0x70d2,
161 .name = "pxi-6512",
162 .num_do_ports = 8},
163 {
164 .dev_id = 0x70c8,
165 .name = "pci-6513",
166 .num_do_ports = 8,
167 .invert_outputs = 1},
168 {
169 .dev_id = 0x70d1,
170 .name = "pxi-6513",
171 .num_do_ports = 8,
172 .invert_outputs = 1},
173 {
174 .dev_id = 0x7088,
175 .name = "pci-6514",
176 .num_di_ports = 4,
177 .num_do_ports = 4,
178 .invert_outputs = 1},
179 {
180 .dev_id = 0x70CD,
181 .name = "pxi-6514",
182 .num_di_ports = 4,
183 .num_do_ports = 4,
184 .invert_outputs = 1},
185 {
186 .dev_id = 0x7087,
187 .name = "pci-6515",
188 .num_di_ports = 4,
189 .num_do_ports = 4,
190 .invert_outputs = 1},
191 {
192 .dev_id = 0x70c9,
193 .name = "pxi-6515",
194 .num_di_ports = 4,
195 .num_do_ports = 4,
196 .invert_outputs = 1},
197 {
198 .dev_id = 0x7125,
199 .name = "pci-6516",
200 .num_do_ports = 4,
201 .invert_outputs = 1},
202 {
203 .dev_id = 0x7126,
204 .name = "pci-6517",
205 .num_do_ports = 4,
206 .invert_outputs = 1},
207 {
208 .dev_id = 0x7127,
209 .name = "pci-6518",
210 .num_di_ports = 2,
211 .num_do_ports = 2,
212 .invert_outputs = 1},
213 {
214 .dev_id = 0x7128,
215 .name = "pci-6519",
216 .num_di_ports = 2,
217 .num_do_ports = 2,
218 .invert_outputs = 1},
219 {
220 .dev_id = 0x71c5,
221 .name = "pci-6520",
222 .num_di_ports = 1,
223 .num_do_ports = 1,
224 },
225 {
226 .dev_id = 0x718b,
227 .name = "pci-6521",
228 .num_di_ports = 1,
229 .num_do_ports = 1,
230 },
231 {
232 .dev_id = 0x718c,
233 .name = "pxi-6521",
234 .num_di_ports = 1,
235 .num_do_ports = 1,
236 },
237 {
238 .dev_id = 0x70a9,
239 .name = "pci-6528",
240 .num_di_ports = 3,
241 .num_do_ports = 3,
242 },
243 {
244 .dev_id = 0x7086,
245 .name = "pxi-6528",
246 .num_di_ports = 3,
247 .num_do_ports = 3,
248 },
249 };
250
251 #define n_ni_65xx_boards ARRAY_SIZE(ni_65xx_boards)
252 static inline const struct ni_65xx_board *board(struct comedi_device *dev)
253 {
254 return dev->board_ptr;
255 }
256
257 static inline unsigned ni_65xx_port_by_channel(unsigned channel)
258 {
259 return channel / ni_65xx_channels_per_port;
260 }
261
262 static inline unsigned ni_65xx_total_num_ports(const struct ni_65xx_board
263 *board)
264 {
265 return board->num_dio_ports + board->num_di_ports + board->num_do_ports;
266 }
267
268 static DEFINE_PCI_DEVICE_TABLE(ni_65xx_pci_table) = {
269 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1710)},
270 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7085)},
271 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7086)},
272 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7087)},
273 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7088)},
274 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70a9)},
275 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70c3)},
276 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70c8)},
277 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70c9)},
278 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70cc)},
279 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70CD)},
280 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70d1)},
281 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70d2)},
282 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x70d3)},
283 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7124)},
284 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7125)},
285 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7126)},
286 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7127)},
287 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x7128)},
288 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x718b)},
289 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x718c)},
290 {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x71c5)},
291 {0}
292 };
293
294 MODULE_DEVICE_TABLE(pci, ni_65xx_pci_table);
295
296 struct ni_65xx_private {
297 struct mite_struct *mite;
298 unsigned int filter_interval;
299 unsigned short filter_enable[NI_65XX_MAX_NUM_PORTS];
300 unsigned short output_bits[NI_65XX_MAX_NUM_PORTS];
301 unsigned short dio_direction[NI_65XX_MAX_NUM_PORTS];
302 };
303
304 static inline struct ni_65xx_private *private(struct comedi_device *dev)
305 {
306 return dev->private;
307 }
308
309 struct ni_65xx_subdevice_private {
310 unsigned base_port;
311 };
312
313 static inline struct ni_65xx_subdevice_private *sprivate(struct comedi_subdevice
314 *subdev)
315 {
316 return subdev->private;
317 }
318
319 static struct ni_65xx_subdevice_private *ni_65xx_alloc_subdevice_private(void)
320 {
321 struct ni_65xx_subdevice_private *subdev_private =
322 kzalloc(sizeof(struct ni_65xx_subdevice_private), GFP_KERNEL);
323 if (subdev_private == NULL)
324 return NULL;
325 return subdev_private;
326 }
327
328 static int ni_65xx_find_device(struct comedi_device *dev, int bus, int slot);
329
330 static int ni_65xx_config_filter(struct comedi_device *dev,
331 struct comedi_subdevice *s,
332 struct comedi_insn *insn, unsigned int *data)
333 {
334 const unsigned chan = CR_CHAN(insn->chanspec);
335 const unsigned port =
336 sprivate(s)->base_port + ni_65xx_port_by_channel(chan);
337
338 if (data[0] != INSN_CONFIG_FILTER)
339 return -EINVAL;
340 if (data[1]) {
341 static const unsigned filter_resolution_ns = 200;
342 static const unsigned max_filter_interval = 0xfffff;
343 unsigned interval =
344 (data[1] +
345 (filter_resolution_ns / 2)) / filter_resolution_ns;
346 if (interval > max_filter_interval)
347 interval = max_filter_interval;
348 data[1] = interval * filter_resolution_ns;
349
350 if (interval != private(dev)->filter_interval) {
351 writeb(interval,
352 private(dev)->mite->daq_io_addr +
353 Filter_Interval);
354 private(dev)->filter_interval = interval;
355 }
356
357 private(dev)->filter_enable[port] |=
358 1 << (chan % ni_65xx_channels_per_port);
359 } else {
360 private(dev)->filter_enable[port] &=
361 ~(1 << (chan % ni_65xx_channels_per_port));
362 }
363
364 writeb(private(dev)->filter_enable[port],
365 private(dev)->mite->daq_io_addr + Filter_Enable(port));
366
367 return 2;
368 }
369
370 static int ni_65xx_dio_insn_config(struct comedi_device *dev,
371 struct comedi_subdevice *s,
372 struct comedi_insn *insn, unsigned int *data)
373 {
374 unsigned port;
375
376 if (insn->n < 1)
377 return -EINVAL;
378 port = sprivate(s)->base_port +
379 ni_65xx_port_by_channel(CR_CHAN(insn->chanspec));
380 switch (data[0]) {
381 case INSN_CONFIG_FILTER:
382 return ni_65xx_config_filter(dev, s, insn, data);
383 break;
384 case INSN_CONFIG_DIO_OUTPUT:
385 if (s->type != COMEDI_SUBD_DIO)
386 return -EINVAL;
387 private(dev)->dio_direction[port] = COMEDI_OUTPUT;
388 writeb(0, private(dev)->mite->daq_io_addr + Port_Select(port));
389 return 1;
390 break;
391 case INSN_CONFIG_DIO_INPUT:
392 if (s->type != COMEDI_SUBD_DIO)
393 return -EINVAL;
394 private(dev)->dio_direction[port] = COMEDI_INPUT;
395 writeb(1, private(dev)->mite->daq_io_addr + Port_Select(port));
396 return 1;
397 break;
398 case INSN_CONFIG_DIO_QUERY:
399 if (s->type != COMEDI_SUBD_DIO)
400 return -EINVAL;
401 data[1] = private(dev)->dio_direction[port];
402 return insn->n;
403 break;
404 default:
405 break;
406 }
407 return -EINVAL;
408 }
409
410 static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
411 struct comedi_subdevice *s,
412 struct comedi_insn *insn, unsigned int *data)
413 {
414 unsigned base_bitfield_channel;
415 const unsigned max_ports_per_bitfield = 5;
416 unsigned read_bits = 0;
417 unsigned j;
418 if (insn->n != 2)
419 return -EINVAL;
420 base_bitfield_channel = CR_CHAN(insn->chanspec);
421 for (j = 0; j < max_ports_per_bitfield; ++j) {
422 const unsigned port_offset =
423 ni_65xx_port_by_channel(base_bitfield_channel) + j;
424 const unsigned port =
425 sprivate(s)->base_port + port_offset;
426 unsigned base_port_channel;
427 unsigned port_mask, port_data, port_read_bits;
428 int bitshift;
429 if (port >= ni_65xx_total_num_ports(board(dev)))
430 break;
431 base_port_channel = port_offset * ni_65xx_channels_per_port;
432 port_mask = data[0];
433 port_data = data[1];
434 bitshift = base_port_channel - base_bitfield_channel;
435 if (bitshift >= 32 || bitshift <= -32)
436 break;
437 if (bitshift > 0) {
438 port_mask >>= bitshift;
439 port_data >>= bitshift;
440 } else {
441 port_mask <<= -bitshift;
442 port_data <<= -bitshift;
443 }
444 port_mask &= 0xff;
445 port_data &= 0xff;
446 if (port_mask) {
447 unsigned bits;
448 private(dev)->output_bits[port] &= ~port_mask;
449 private(dev)->output_bits[port] |=
450 port_data & port_mask;
451 bits = private(dev)->output_bits[port];
452 if (board(dev)->invert_outputs)
453 bits = ~bits;
454 writeb(bits,
455 private(dev)->mite->daq_io_addr +
456 Port_Data(port));
457 /* printk("wrote 0x%x to port %i\n", bits, port); */
458 }
459 port_read_bits =
460 readb(private(dev)->mite->daq_io_addr + Port_Data(port));
461 /* printk("read 0x%x from port %i\n", port_read_bits, port); */
462 if (s->type == COMEDI_SUBD_DO && board(dev)->invert_outputs) {
463 /* Outputs inverted, so invert value read back from
464 * DO subdevice. (Does not apply to boards with DIO
465 * subdevice.) */
466 port_read_bits ^= 0xFF;
467 }
468 if (bitshift > 0)
469 port_read_bits <<= bitshift;
470 else
471 port_read_bits >>= -bitshift;
472
473 read_bits |= port_read_bits;
474 }
475 data[1] = read_bits;
476 return insn->n;
477 }
478
479 static irqreturn_t ni_65xx_interrupt(int irq, void *d)
480 {
481 struct comedi_device *dev = d;
482 struct comedi_subdevice *s = dev->subdevices + 2;
483 unsigned int status;
484
485 status = readb(private(dev)->mite->daq_io_addr + Change_Status);
486 if ((status & MasterInterruptStatus) == 0)
487 return IRQ_NONE;
488 if ((status & EdgeStatus) == 0)
489 return IRQ_NONE;
490
491 writeb(ClrEdge | ClrOverflow,
492 private(dev)->mite->daq_io_addr + Clear_Register);
493
494 comedi_buf_put(s->async, 0);
495 s->async->events |= COMEDI_CB_EOS;
496 comedi_event(dev, s);
497 return IRQ_HANDLED;
498 }
499
500 static int ni_65xx_intr_cmdtest(struct comedi_device *dev,
501 struct comedi_subdevice *s,
502 struct comedi_cmd *cmd)
503 {
504 int err = 0;
505 int tmp;
506
507 /* step 1: make sure trigger sources are trivially valid */
508
509 tmp = cmd->start_src;
510 cmd->start_src &= TRIG_NOW;
511 if (!cmd->start_src || tmp != cmd->start_src)
512 err++;
513
514 tmp = cmd->scan_begin_src;
515 cmd->scan_begin_src &= TRIG_OTHER;
516 if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
517 err++;
518
519 tmp = cmd->convert_src;
520 cmd->convert_src &= TRIG_FOLLOW;
521 if (!cmd->convert_src || tmp != cmd->convert_src)
522 err++;
523
524 tmp = cmd->scan_end_src;
525 cmd->scan_end_src &= TRIG_COUNT;
526 if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
527 err++;
528
529 tmp = cmd->stop_src;
530 cmd->stop_src &= TRIG_COUNT;
531 if (!cmd->stop_src || tmp != cmd->stop_src)
532 err++;
533
534 if (err)
535 return 1;
536
537 /* step 2: make sure trigger sources are unique and mutually
538 compatible */
539
540 if (err)
541 return 2;
542
543 /* step 3: make sure arguments are trivially compatible */
544
545 if (cmd->start_arg != 0) {
546 cmd->start_arg = 0;
547 err++;
548 }
549 if (cmd->scan_begin_arg != 0) {
550 cmd->scan_begin_arg = 0;
551 err++;
552 }
553 if (cmd->convert_arg != 0) {
554 cmd->convert_arg = 0;
555 err++;
556 }
557
558 if (cmd->scan_end_arg != 1) {
559 cmd->scan_end_arg = 1;
560 err++;
561 }
562 if (cmd->stop_arg != 0) {
563 cmd->stop_arg = 0;
564 err++;
565 }
566
567 if (err)
568 return 3;
569
570 /* step 4: fix up any arguments */
571
572 if (err)
573 return 4;
574
575 return 0;
576 }
577
578 static int ni_65xx_intr_cmd(struct comedi_device *dev,
579 struct comedi_subdevice *s)
580 {
581 /* struct comedi_cmd *cmd = &s->async->cmd; */
582
583 writeb(ClrEdge | ClrOverflow,
584 private(dev)->mite->daq_io_addr + Clear_Register);
585 writeb(FallingEdgeIntEnable | RisingEdgeIntEnable |
586 MasterInterruptEnable | EdgeIntEnable,
587 private(dev)->mite->daq_io_addr + Master_Interrupt_Control);
588
589 return 0;
590 }
591
592 static int ni_65xx_intr_cancel(struct comedi_device *dev,
593 struct comedi_subdevice *s)
594 {
595 writeb(0x00,
596 private(dev)->mite->daq_io_addr + Master_Interrupt_Control);
597
598 return 0;
599 }
600
601 static int ni_65xx_intr_insn_bits(struct comedi_device *dev,
602 struct comedi_subdevice *s,
603 struct comedi_insn *insn, unsigned int *data)
604 {
605 if (insn->n < 1)
606 return -EINVAL;
607
608 data[1] = 0;
609 return 2;
610 }
611
612 static int ni_65xx_intr_insn_config(struct comedi_device *dev,
613 struct comedi_subdevice *s,
614 struct comedi_insn *insn,
615 unsigned int *data)
616 {
617 if (insn->n < 1)
618 return -EINVAL;
619 if (data[0] != INSN_CONFIG_CHANGE_NOTIFY)
620 return -EINVAL;
621
622 writeb(data[1],
623 private(dev)->mite->daq_io_addr +
624 Rising_Edge_Detection_Enable(0));
625 writeb(data[1] >> 8,
626 private(dev)->mite->daq_io_addr +
627 Rising_Edge_Detection_Enable(0x10));
628 writeb(data[1] >> 16,
629 private(dev)->mite->daq_io_addr +
630 Rising_Edge_Detection_Enable(0x20));
631 writeb(data[1] >> 24,
632 private(dev)->mite->daq_io_addr +
633 Rising_Edge_Detection_Enable(0x30));
634
635 writeb(data[2],
636 private(dev)->mite->daq_io_addr +
637 Falling_Edge_Detection_Enable(0));
638 writeb(data[2] >> 8,
639 private(dev)->mite->daq_io_addr +
640 Falling_Edge_Detection_Enable(0x10));
641 writeb(data[2] >> 16,
642 private(dev)->mite->daq_io_addr +
643 Falling_Edge_Detection_Enable(0x20));
644 writeb(data[2] >> 24,
645 private(dev)->mite->daq_io_addr +
646 Falling_Edge_Detection_Enable(0x30));
647
648 return 2;
649 }
650
651 static int ni_65xx_attach(struct comedi_device *dev,
652 struct comedi_devconfig *it)
653 {
654 struct comedi_subdevice *s;
655 unsigned i;
656 int ret;
657
658 printk(KERN_INFO "comedi%d: ni_65xx:", dev->minor);
659
660 ret = alloc_private(dev, sizeof(struct ni_65xx_private));
661 if (ret < 0)
662 return ret;
663
664 ret = ni_65xx_find_device(dev, it->options[0], it->options[1]);
665 if (ret < 0)
666 return ret;
667
668 ret = mite_setup(private(dev)->mite);
669 if (ret < 0) {
670 printk(KERN_WARNING "error setting up mite\n");
671 return ret;
672 }
673
674 dev->board_name = board(dev)->name;
675 dev->irq = mite_irq(private(dev)->mite);
676 printk(KERN_INFO " %s", dev->board_name);
677
678 printk(KERN_INFO " ID=0x%02x",
679 readb(private(dev)->mite->daq_io_addr + ID_Register));
680
681 ret = alloc_subdevices(dev, 4);
682 if (ret < 0)
683 return ret;
684
685 s = dev->subdevices + 0;
686 if (board(dev)->num_di_ports) {
687 s->type = COMEDI_SUBD_DI;
688 s->subdev_flags = SDF_READABLE;
689 s->n_chan =
690 board(dev)->num_di_ports * ni_65xx_channels_per_port;
691 s->range_table = &range_digital;
692 s->maxdata = 1;
693 s->insn_config = ni_65xx_dio_insn_config;
694 s->insn_bits = ni_65xx_dio_insn_bits;
695 s->private = ni_65xx_alloc_subdevice_private();
696 if (s->private == NULL)
697 return -ENOMEM;
698 sprivate(s)->base_port = 0;
699 } else {
700 s->type = COMEDI_SUBD_UNUSED;
701 }
702
703 s = dev->subdevices + 1;
704 if (board(dev)->num_do_ports) {
705 s->type = COMEDI_SUBD_DO;
706 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
707 s->n_chan =
708 board(dev)->num_do_ports * ni_65xx_channels_per_port;
709 s->range_table = &range_digital;
710 s->maxdata = 1;
711 s->insn_bits = ni_65xx_dio_insn_bits;
712 s->private = ni_65xx_alloc_subdevice_private();
713 if (s->private == NULL)
714 return -ENOMEM;
715 sprivate(s)->base_port = board(dev)->num_di_ports;
716 } else {
717 s->type = COMEDI_SUBD_UNUSED;
718 }
719
720 s = dev->subdevices + 2;
721 if (board(dev)->num_dio_ports) {
722 s->type = COMEDI_SUBD_DIO;
723 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
724 s->n_chan =
725 board(dev)->num_dio_ports * ni_65xx_channels_per_port;
726 s->range_table = &range_digital;
727 s->maxdata = 1;
728 s->insn_config = ni_65xx_dio_insn_config;
729 s->insn_bits = ni_65xx_dio_insn_bits;
730 s->private = ni_65xx_alloc_subdevice_private();
731 if (s->private == NULL)
732 return -ENOMEM;
733 sprivate(s)->base_port = 0;
734 for (i = 0; i < board(dev)->num_dio_ports; ++i) {
735 /* configure all ports for input */
736 writeb(0x1,
737 private(dev)->mite->daq_io_addr +
738 Port_Select(i));
739 }
740 } else {
741 s->type = COMEDI_SUBD_UNUSED;
742 }
743
744 s = dev->subdevices + 3;
745 dev->read_subdev = s;
746 s->type = COMEDI_SUBD_DI;
747 s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
748 s->n_chan = 1;
749 s->range_table = &range_unknown;
750 s->maxdata = 1;
751 s->do_cmdtest = ni_65xx_intr_cmdtest;
752 s->do_cmd = ni_65xx_intr_cmd;
753 s->cancel = ni_65xx_intr_cancel;
754 s->insn_bits = ni_65xx_intr_insn_bits;
755 s->insn_config = ni_65xx_intr_insn_config;
756
757 for (i = 0; i < ni_65xx_total_num_ports(board(dev)); ++i) {
758 writeb(0x00,
759 private(dev)->mite->daq_io_addr + Filter_Enable(i));
760 if (board(dev)->invert_outputs)
761 writeb(0x01,
762 private(dev)->mite->daq_io_addr + Port_Data(i));
763 else
764 writeb(0x00,
765 private(dev)->mite->daq_io_addr + Port_Data(i));
766 }
767 writeb(ClrEdge | ClrOverflow,
768 private(dev)->mite->daq_io_addr + Clear_Register);
769 writeb(0x00,
770 private(dev)->mite->daq_io_addr + Master_Interrupt_Control);
771
772 /* Set filter interval to 0 (32bit reg) */
773 writeb(0x00000000, private(dev)->mite->daq_io_addr + Filter_Interval);
774
775 ret = request_irq(dev->irq, ni_65xx_interrupt, IRQF_SHARED,
776 "ni_65xx", dev);
777 if (ret < 0) {
778 dev->irq = 0;
779 printk(KERN_WARNING " irq not available");
780 }
781
782 printk("\n");
783
784 return 0;
785 }
786
787 static int ni_65xx_detach(struct comedi_device *dev)
788 {
789 if (private(dev) && private(dev)->mite
790 && private(dev)->mite->daq_io_addr) {
791 writeb(0x00,
792 private(dev)->mite->daq_io_addr +
793 Master_Interrupt_Control);
794 }
795
796 if (dev->irq)
797 free_irq(dev->irq, dev);
798
799 if (private(dev)) {
800 unsigned i;
801 for (i = 0; i < dev->n_subdevices; ++i) {
802 kfree(dev->subdevices[i].private);
803 dev->subdevices[i].private = NULL;
804 }
805 if (private(dev)->mite)
806 mite_unsetup(private(dev)->mite);
807 }
808 return 0;
809 }
810
811 static int ni_65xx_find_device(struct comedi_device *dev, int bus, int slot)
812 {
813 struct mite_struct *mite;
814 int i;
815
816 for (mite = mite_devices; mite; mite = mite->next) {
817 if (mite->used)
818 continue;
819 if (bus || slot) {
820 if (bus != mite->pcidev->bus->number ||
821 slot != PCI_SLOT(mite->pcidev->devfn))
822 continue;
823 }
824 for (i = 0; i < n_ni_65xx_boards; i++) {
825 if (mite_device_id(mite) == ni_65xx_boards[i].dev_id) {
826 dev->board_ptr = ni_65xx_boards + i;
827 private(dev)->mite = mite;
828 return 0;
829 }
830 }
831 }
832 printk(KERN_WARNING "no device found\n");
833 mite_list_devices();
834 return -EIO;
835 }
836
837 static int __devinit driver_ni_65xx_pci_probe(struct pci_dev *dev,
838 const struct pci_device_id *ent)
839 {
840 return comedi_pci_auto_config(dev, driver_ni_65xx.driver_name);
841 }
842
843 static void __devexit driver_ni_65xx_pci_remove(struct pci_dev *dev)
844 {
845 comedi_pci_auto_unconfig(dev);
846 }
847
848 static struct pci_driver driver_ni_65xx_pci_driver = {
849 .id_table = ni_65xx_pci_table,
850 .probe = &driver_ni_65xx_pci_probe,
851 .remove = __devexit_p(&driver_ni_65xx_pci_remove)
852 };
853
854 static int __init driver_ni_65xx_init_module(void)
855 {
856 int retval;
857
858 retval = comedi_driver_register(&driver_ni_65xx);
859 if (retval < 0)
860 return retval;
861
862 driver_ni_65xx_pci_driver.name = (char *)driver_ni_65xx.driver_name;
863 return pci_register_driver(&driver_ni_65xx_pci_driver);
864 }
865
866 static void __exit driver_ni_65xx_cleanup_module(void)
867 {
868 pci_unregister_driver(&driver_ni_65xx_pci_driver);
869 comedi_driver_unregister(&driver_ni_65xx);
870 }
871
872 module_init(driver_ni_65xx_init_module);
873 module_exit(driver_ni_65xx_cleanup_module);
874
875 MODULE_AUTHOR("Comedi http://www.comedi.org");
876 MODULE_DESCRIPTION("Comedi low-level driver");
877 MODULE_LICENSE("GPL");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree