2 comedi/drivers/ni_6514.c
3 driver for National Instruments PCI-6514
5 Copyright (C) 2006 Jon Grierson <jd@renko.co.uk>
6 Copyright (C) 2006 Frank Mori Hess <fmhess@users.sourceforge.net>
8 COMEDI - Linux Control and Measurement Device Interface
9 Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org>
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.
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.
23 Description: National Instruments 65xx static dio boards
24 Author: Jon Grierson <jd@renko.co.uk>,
25 Frank Mori Hess <fmhess@users.sourceforge.net>
27 Devices: [National Instruments] PCI-6509 (ni_65xx), PXI-6509, PCI-6510,
28 PCI-6511, PXI-6511, PCI-6512, PXI-6512, PCI-6513, PXI-6513, PCI-6514,
29 PXI-6514, PCI-6515, PXI-6515, PCI-6516, PCI-6517, PCI-6518, PCI-6519,
30 PCI-6520, PCI-6521, PXI-6521, PCI-6528, PXI-6528
31 Updated: Wed Oct 18 08:59:11 EDT 2006
33 Based on the PCI-6527 driver by ds.
34 The interrupt subdevice (subdevice 3) is probably broken for all boards
35 except maybe the 6514.
40 Manuals (available from ftp://ftp.natinst.com/support/manuals)
42 370106b.pdf 6514 Register Level Programmer Manual
49 #include <linux/module.h>
50 #include <linux/pci.h>
51 #include <linux/interrupt.h>
53 #include "../comedidev.h"
55 #include "comedi_fc.h"
58 #define NI6514_DIO_SIZE 4096
59 #define NI6514_MITE_SIZE 4096
61 #define NI_65XX_MAX_NUM_PORTS 12
62 static const unsigned ni_65xx_channels_per_port = 8;
63 static const unsigned ni_65xx_port_offset = 0x10;
65 static inline unsigned Port_Data(unsigned port)
67 return 0x40 + port * ni_65xx_port_offset;
70 static inline unsigned Port_Select(unsigned port)
72 return 0x41 + port * ni_65xx_port_offset;
75 static inline unsigned Rising_Edge_Detection_Enable(unsigned port)
77 return 0x42 + port * ni_65xx_port_offset;
80 static inline unsigned Falling_Edge_Detection_Enable(unsigned port)
82 return 0x43 + port * ni_65xx_port_offset;
85 static inline unsigned Filter_Enable(unsigned port)
87 return 0x44 + port * ni_65xx_port_offset;
90 #define ID_Register 0x00
92 #define Clear_Register 0x01
94 #define ClrOverflow 0x04
96 #define Filter_Interval 0x08
98 #define Change_Status 0x02
99 #define MasterInterruptStatus 0x04
100 #define Overflow 0x02
101 #define EdgeStatus 0x01
103 #define Master_Interrupt_Control 0x03
104 #define FallingEdgeIntEnable 0x10
105 #define RisingEdgeIntEnable 0x08
106 #define MasterInterruptEnable 0x04
107 #define OverflowIntEnable 0x02
108 #define EdgeIntEnable 0x01
110 enum ni_65xx_boardid {
135 struct ni_65xx_board {
137 unsigned num_dio_ports;
138 unsigned num_di_ports;
139 unsigned num_do_ports;
140 unsigned invert_outputs:1;
143 static const struct ni_65xx_board ni_65xx_boards[] = {
255 static inline unsigned ni_65xx_port_by_channel(unsigned channel)
257 return channel / ni_65xx_channels_per_port;
260 static inline unsigned ni_65xx_total_num_ports(const struct ni_65xx_board
263 return board->num_dio_ports + board->num_di_ports + board->num_do_ports;
266 struct ni_65xx_private {
267 struct mite_struct *mite;
268 unsigned int filter_interval;
269 unsigned short filter_enable[NI_65XX_MAX_NUM_PORTS];
270 unsigned short output_bits[NI_65XX_MAX_NUM_PORTS];
271 unsigned short dio_direction[NI_65XX_MAX_NUM_PORTS];
274 struct ni_65xx_subdevice_private {
278 static inline struct ni_65xx_subdevice_private *sprivate(struct comedi_subdevice
281 return subdev->private;
284 static int ni_65xx_config_filter(struct comedi_device *dev,
285 struct comedi_subdevice *s,
286 struct comedi_insn *insn, unsigned int *data)
288 struct ni_65xx_private *devpriv = dev->private;
289 const unsigned chan = CR_CHAN(insn->chanspec);
290 const unsigned port =
291 sprivate(s)->base_port + ni_65xx_port_by_channel(chan);
293 if (data[0] != INSN_CONFIG_FILTER)
296 static const unsigned filter_resolution_ns = 200;
297 static const unsigned max_filter_interval = 0xfffff;
300 (filter_resolution_ns / 2)) / filter_resolution_ns;
301 if (interval > max_filter_interval)
302 interval = max_filter_interval;
303 data[1] = interval * filter_resolution_ns;
305 if (interval != devpriv->filter_interval) {
307 devpriv->mite->daq_io_addr +
309 devpriv->filter_interval = interval;
312 devpriv->filter_enable[port] |=
313 1 << (chan % ni_65xx_channels_per_port);
315 devpriv->filter_enable[port] &=
316 ~(1 << (chan % ni_65xx_channels_per_port));
319 writeb(devpriv->filter_enable[port],
320 devpriv->mite->daq_io_addr + Filter_Enable(port));
325 static int ni_65xx_dio_insn_config(struct comedi_device *dev,
326 struct comedi_subdevice *s,
327 struct comedi_insn *insn, unsigned int *data)
329 struct ni_65xx_private *devpriv = dev->private;
334 port = sprivate(s)->base_port +
335 ni_65xx_port_by_channel(CR_CHAN(insn->chanspec));
337 case INSN_CONFIG_FILTER:
338 return ni_65xx_config_filter(dev, s, insn, data);
340 case INSN_CONFIG_DIO_OUTPUT:
341 if (s->type != COMEDI_SUBD_DIO)
343 devpriv->dio_direction[port] = COMEDI_OUTPUT;
344 writeb(0, devpriv->mite->daq_io_addr + Port_Select(port));
347 case INSN_CONFIG_DIO_INPUT:
348 if (s->type != COMEDI_SUBD_DIO)
350 devpriv->dio_direction[port] = COMEDI_INPUT;
351 writeb(1, devpriv->mite->daq_io_addr + Port_Select(port));
354 case INSN_CONFIG_DIO_QUERY:
355 if (s->type != COMEDI_SUBD_DIO)
357 data[1] = devpriv->dio_direction[port];
366 static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
367 struct comedi_subdevice *s,
368 struct comedi_insn *insn, unsigned int *data)
370 const struct ni_65xx_board *board = comedi_board(dev);
371 struct ni_65xx_private *devpriv = dev->private;
372 unsigned base_bitfield_channel;
373 const unsigned max_ports_per_bitfield = 5;
374 unsigned read_bits = 0;
377 base_bitfield_channel = CR_CHAN(insn->chanspec);
378 for (j = 0; j < max_ports_per_bitfield; ++j) {
379 const unsigned port_offset =
380 ni_65xx_port_by_channel(base_bitfield_channel) + j;
381 const unsigned port =
382 sprivate(s)->base_port + port_offset;
383 unsigned base_port_channel;
384 unsigned port_mask, port_data, port_read_bits;
386 if (port >= ni_65xx_total_num_ports(board))
388 base_port_channel = port_offset * ni_65xx_channels_per_port;
391 bitshift = base_port_channel - base_bitfield_channel;
392 if (bitshift >= 32 || bitshift <= -32)
395 port_mask >>= bitshift;
396 port_data >>= bitshift;
398 port_mask <<= -bitshift;
399 port_data <<= -bitshift;
405 devpriv->output_bits[port] &= ~port_mask;
406 devpriv->output_bits[port] |=
407 port_data & port_mask;
408 bits = devpriv->output_bits[port];
409 if (board->invert_outputs)
412 devpriv->mite->daq_io_addr +
416 readb(devpriv->mite->daq_io_addr + Port_Data(port));
417 if (s->type == COMEDI_SUBD_DO && board->invert_outputs) {
418 /* Outputs inverted, so invert value read back from
419 * DO subdevice. (Does not apply to boards with DIO
421 port_read_bits ^= 0xFF;
424 port_read_bits <<= bitshift;
426 port_read_bits >>= -bitshift;
428 read_bits |= port_read_bits;
434 static irqreturn_t ni_65xx_interrupt(int irq, void *d)
436 struct comedi_device *dev = d;
437 struct ni_65xx_private *devpriv = dev->private;
438 struct comedi_subdevice *s = &dev->subdevices[2];
441 status = readb(devpriv->mite->daq_io_addr + Change_Status);
442 if ((status & MasterInterruptStatus) == 0)
444 if ((status & EdgeStatus) == 0)
447 writeb(ClrEdge | ClrOverflow,
448 devpriv->mite->daq_io_addr + Clear_Register);
450 comedi_buf_put(s->async, 0);
451 s->async->events |= COMEDI_CB_EOS;
452 comedi_event(dev, s);
456 static int ni_65xx_intr_cmdtest(struct comedi_device *dev,
457 struct comedi_subdevice *s,
458 struct comedi_cmd *cmd)
462 /* Step 1 : check if triggers are trivially valid */
464 err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
465 err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
466 err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
467 err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
468 err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
473 /* Step 2a : make sure trigger sources are unique */
474 /* Step 2b : and mutually compatible */
479 /* Step 3: check if arguments are trivially valid */
481 err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
482 err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
483 err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
484 err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, 1);
485 err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
490 /* step 4: fix up any arguments */
498 static int ni_65xx_intr_cmd(struct comedi_device *dev,
499 struct comedi_subdevice *s)
501 struct ni_65xx_private *devpriv = dev->private;
502 /* struct comedi_cmd *cmd = &s->async->cmd; */
504 writeb(ClrEdge | ClrOverflow,
505 devpriv->mite->daq_io_addr + Clear_Register);
506 writeb(FallingEdgeIntEnable | RisingEdgeIntEnable |
507 MasterInterruptEnable | EdgeIntEnable,
508 devpriv->mite->daq_io_addr + Master_Interrupt_Control);
513 static int ni_65xx_intr_cancel(struct comedi_device *dev,
514 struct comedi_subdevice *s)
516 struct ni_65xx_private *devpriv = dev->private;
518 writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
523 static int ni_65xx_intr_insn_bits(struct comedi_device *dev,
524 struct comedi_subdevice *s,
525 struct comedi_insn *insn, unsigned int *data)
531 static int ni_65xx_intr_insn_config(struct comedi_device *dev,
532 struct comedi_subdevice *s,
533 struct comedi_insn *insn,
536 struct ni_65xx_private *devpriv = dev->private;
540 if (data[0] != INSN_CONFIG_CHANGE_NOTIFY)
544 devpriv->mite->daq_io_addr +
545 Rising_Edge_Detection_Enable(0));
547 devpriv->mite->daq_io_addr +
548 Rising_Edge_Detection_Enable(0x10));
549 writeb(data[1] >> 16,
550 devpriv->mite->daq_io_addr +
551 Rising_Edge_Detection_Enable(0x20));
552 writeb(data[1] >> 24,
553 devpriv->mite->daq_io_addr +
554 Rising_Edge_Detection_Enable(0x30));
557 devpriv->mite->daq_io_addr +
558 Falling_Edge_Detection_Enable(0));
560 devpriv->mite->daq_io_addr +
561 Falling_Edge_Detection_Enable(0x10));
562 writeb(data[2] >> 16,
563 devpriv->mite->daq_io_addr +
564 Falling_Edge_Detection_Enable(0x20));
565 writeb(data[2] >> 24,
566 devpriv->mite->daq_io_addr +
567 Falling_Edge_Detection_Enable(0x30));
572 static int ni_65xx_auto_attach(struct comedi_device *dev,
573 unsigned long context)
575 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
576 const struct ni_65xx_board *board = NULL;
577 struct ni_65xx_private *devpriv;
578 struct ni_65xx_subdevice_private *spriv;
579 struct comedi_subdevice *s;
583 if (context < ARRAY_SIZE(ni_65xx_boards))
584 board = &ni_65xx_boards[context];
587 dev->board_ptr = board;
588 dev->board_name = board->name;
590 ret = comedi_pci_enable(dev);
594 devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
598 devpriv->mite = mite_alloc(pcidev);
602 ret = mite_setup(devpriv->mite);
604 dev_warn(dev->class_dev, "error setting up mite\n");
608 dev->irq = mite_irq(devpriv->mite);
609 dev_info(dev->class_dev, "board: %s, ID=0x%02x", dev->board_name,
610 readb(devpriv->mite->daq_io_addr + ID_Register));
612 ret = comedi_alloc_subdevices(dev, 4);
616 s = &dev->subdevices[0];
617 if (board->num_di_ports) {
618 s->type = COMEDI_SUBD_DI;
619 s->subdev_flags = SDF_READABLE;
621 board->num_di_ports * ni_65xx_channels_per_port;
622 s->range_table = &range_digital;
624 s->insn_config = ni_65xx_dio_insn_config;
625 s->insn_bits = ni_65xx_dio_insn_bits;
626 spriv = comedi_alloc_spriv(s, sizeof(*spriv));
629 spriv->base_port = 0;
631 s->type = COMEDI_SUBD_UNUSED;
634 s = &dev->subdevices[1];
635 if (board->num_do_ports) {
636 s->type = COMEDI_SUBD_DO;
637 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
639 board->num_do_ports * ni_65xx_channels_per_port;
640 s->range_table = &range_digital;
642 s->insn_bits = ni_65xx_dio_insn_bits;
643 spriv = comedi_alloc_spriv(s, sizeof(*spriv));
646 spriv->base_port = board->num_di_ports;
648 s->type = COMEDI_SUBD_UNUSED;
651 s = &dev->subdevices[2];
652 if (board->num_dio_ports) {
653 s->type = COMEDI_SUBD_DIO;
654 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
656 board->num_dio_ports * ni_65xx_channels_per_port;
657 s->range_table = &range_digital;
659 s->insn_config = ni_65xx_dio_insn_config;
660 s->insn_bits = ni_65xx_dio_insn_bits;
661 spriv = comedi_alloc_spriv(s, sizeof(*spriv));
664 spriv->base_port = 0;
665 for (i = 0; i < board->num_dio_ports; ++i) {
666 /* configure all ports for input */
668 devpriv->mite->daq_io_addr +
672 s->type = COMEDI_SUBD_UNUSED;
675 s = &dev->subdevices[3];
676 dev->read_subdev = s;
677 s->type = COMEDI_SUBD_DI;
678 s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
680 s->range_table = &range_unknown;
682 s->do_cmdtest = ni_65xx_intr_cmdtest;
683 s->do_cmd = ni_65xx_intr_cmd;
684 s->cancel = ni_65xx_intr_cancel;
685 s->insn_bits = ni_65xx_intr_insn_bits;
686 s->insn_config = ni_65xx_intr_insn_config;
688 for (i = 0; i < ni_65xx_total_num_ports(board); ++i) {
690 devpriv->mite->daq_io_addr + Filter_Enable(i));
691 if (board->invert_outputs)
693 devpriv->mite->daq_io_addr + Port_Data(i));
696 devpriv->mite->daq_io_addr + Port_Data(i));
698 writeb(ClrEdge | ClrOverflow,
699 devpriv->mite->daq_io_addr + Clear_Register);
701 devpriv->mite->daq_io_addr + Master_Interrupt_Control);
703 /* Set filter interval to 0 (32bit reg) */
704 writeb(0x00000000, devpriv->mite->daq_io_addr + Filter_Interval);
706 ret = request_irq(dev->irq, ni_65xx_interrupt, IRQF_SHARED,
710 dev_warn(dev->class_dev, "irq not available\n");
716 static void ni_65xx_detach(struct comedi_device *dev)
718 struct ni_65xx_private *devpriv = dev->private;
720 if (devpriv && devpriv->mite && devpriv->mite->daq_io_addr) {
722 devpriv->mite->daq_io_addr +
723 Master_Interrupt_Control);
726 free_irq(dev->irq, dev);
729 mite_unsetup(devpriv->mite);
730 mite_free(devpriv->mite);
733 comedi_pci_disable(dev);
736 static struct comedi_driver ni_65xx_driver = {
737 .driver_name = "ni_65xx",
738 .module = THIS_MODULE,
739 .auto_attach = ni_65xx_auto_attach,
740 .detach = ni_65xx_detach,
743 static int ni_65xx_pci_probe(struct pci_dev *dev,
744 const struct pci_device_id *id)
746 return comedi_pci_auto_config(dev, &ni_65xx_driver, id->driver_data);
749 static DEFINE_PCI_DEVICE_TABLE(ni_65xx_pci_table) = {
750 { PCI_VDEVICE(NI, 0x1710), BOARD_PXI6509 },
751 { PCI_VDEVICE(NI, 0x7085), BOARD_PCI6509 },
752 { PCI_VDEVICE(NI, 0x7086), BOARD_PXI6528 },
753 { PCI_VDEVICE(NI, 0x7087), BOARD_PCI6515 },
754 { PCI_VDEVICE(NI, 0x7088), BOARD_PCI6514 },
755 { PCI_VDEVICE(NI, 0x70a9), BOARD_PCI6528 },
756 { PCI_VDEVICE(NI, 0x70c3), BOARD_PCI6511 },
757 { PCI_VDEVICE(NI, 0x70c8), BOARD_PCI6513 },
758 { PCI_VDEVICE(NI, 0x70c9), BOARD_PXI6515 },
759 { PCI_VDEVICE(NI, 0x70cc), BOARD_PCI6512 },
760 { PCI_VDEVICE(NI, 0x70cd), BOARD_PXI6514 },
761 { PCI_VDEVICE(NI, 0x70d1), BOARD_PXI6513 },
762 { PCI_VDEVICE(NI, 0x70d2), BOARD_PXI6512 },
763 { PCI_VDEVICE(NI, 0x70d3), BOARD_PXI6511 },
764 { PCI_VDEVICE(NI, 0x7124), BOARD_PCI6510 },
765 { PCI_VDEVICE(NI, 0x7125), BOARD_PCI6516 },
766 { PCI_VDEVICE(NI, 0x7126), BOARD_PCI6517 },
767 { PCI_VDEVICE(NI, 0x7127), BOARD_PCI6518 },
768 { PCI_VDEVICE(NI, 0x7128), BOARD_PCI6519 },
769 { PCI_VDEVICE(NI, 0x718b), BOARD_PCI6521 },
770 { PCI_VDEVICE(NI, 0x718c), BOARD_PXI6521 },
771 { PCI_VDEVICE(NI, 0x71c5), BOARD_PCI6520 },
774 MODULE_DEVICE_TABLE(pci, ni_65xx_pci_table);
776 static struct pci_driver ni_65xx_pci_driver = {
778 .id_table = ni_65xx_pci_table,
779 .probe = ni_65xx_pci_probe,
780 .remove = comedi_pci_auto_unconfig,
782 module_comedi_pci_driver(ni_65xx_driver, ni_65xx_pci_driver);
784 MODULE_AUTHOR("Comedi http://www.comedi.org");
785 MODULE_DESCRIPTION("Comedi low-level driver");
786 MODULE_LICENSE("GPL");