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
46 #include <linux/module.h>
47 #include <linux/pci.h>
48 #include <linux/interrupt.h>
50 #include "../comedidev.h"
52 #include "comedi_fc.h"
55 #define NI6514_DIO_SIZE 4096
56 #define NI6514_MITE_SIZE 4096
58 #define NI_65XX_MAX_NUM_PORTS 12
59 static const unsigned ni_65xx_channels_per_port = 8;
60 static const unsigned ni_65xx_port_offset = 0x10;
62 static inline unsigned Port_Data(unsigned port)
64 return 0x40 + port * ni_65xx_port_offset;
67 static inline unsigned Port_Select(unsigned port)
69 return 0x41 + port * ni_65xx_port_offset;
72 static inline unsigned Rising_Edge_Detection_Enable(unsigned port)
74 return 0x42 + port * ni_65xx_port_offset;
77 static inline unsigned Falling_Edge_Detection_Enable(unsigned port)
79 return 0x43 + port * ni_65xx_port_offset;
82 static inline unsigned Filter_Enable(unsigned port)
84 return 0x44 + port * ni_65xx_port_offset;
87 #define ID_Register 0x00
89 #define Clear_Register 0x01
91 #define ClrOverflow 0x04
93 #define Filter_Interval 0x08
95 #define Change_Status 0x02
96 #define MasterInterruptStatus 0x04
98 #define EdgeStatus 0x01
100 #define Master_Interrupt_Control 0x03
101 #define FallingEdgeIntEnable 0x10
102 #define RisingEdgeIntEnable 0x08
103 #define MasterInterruptEnable 0x04
104 #define OverflowIntEnable 0x02
105 #define EdgeIntEnable 0x01
107 enum ni_65xx_boardid {
132 struct ni_65xx_board {
134 unsigned num_dio_ports;
135 unsigned num_di_ports;
136 unsigned num_do_ports;
137 unsigned invert_outputs:1;
140 static const struct ni_65xx_board ni_65xx_boards[] = {
252 static inline unsigned ni_65xx_port_by_channel(unsigned channel)
254 return channel / ni_65xx_channels_per_port;
257 static inline unsigned ni_65xx_total_num_ports(const struct ni_65xx_board
260 return board->num_dio_ports + board->num_di_ports + board->num_do_ports;
263 struct ni_65xx_private {
264 struct mite_struct *mite;
265 unsigned int filter_interval;
266 unsigned short filter_enable[NI_65XX_MAX_NUM_PORTS];
267 unsigned short output_bits[NI_65XX_MAX_NUM_PORTS];
268 unsigned short dio_direction[NI_65XX_MAX_NUM_PORTS];
271 struct ni_65xx_subdevice_private {
275 static inline struct ni_65xx_subdevice_private *sprivate(struct comedi_subdevice
278 return subdev->private;
281 static int ni_65xx_config_filter(struct comedi_device *dev,
282 struct comedi_subdevice *s,
283 struct comedi_insn *insn, unsigned int *data)
285 struct ni_65xx_private *devpriv = dev->private;
286 const unsigned chan = CR_CHAN(insn->chanspec);
287 const unsigned port =
288 sprivate(s)->base_port + ni_65xx_port_by_channel(chan);
290 if (data[0] != INSN_CONFIG_FILTER)
293 static const unsigned filter_resolution_ns = 200;
294 static const unsigned max_filter_interval = 0xfffff;
297 (filter_resolution_ns / 2)) / filter_resolution_ns;
298 if (interval > max_filter_interval)
299 interval = max_filter_interval;
300 data[1] = interval * filter_resolution_ns;
302 if (interval != devpriv->filter_interval) {
304 devpriv->mite->daq_io_addr +
306 devpriv->filter_interval = interval;
309 devpriv->filter_enable[port] |=
310 1 << (chan % ni_65xx_channels_per_port);
312 devpriv->filter_enable[port] &=
313 ~(1 << (chan % ni_65xx_channels_per_port));
316 writeb(devpriv->filter_enable[port],
317 devpriv->mite->daq_io_addr + Filter_Enable(port));
322 static int ni_65xx_dio_insn_config(struct comedi_device *dev,
323 struct comedi_subdevice *s,
324 struct comedi_insn *insn, unsigned int *data)
326 struct ni_65xx_private *devpriv = dev->private;
331 port = sprivate(s)->base_port +
332 ni_65xx_port_by_channel(CR_CHAN(insn->chanspec));
334 case INSN_CONFIG_FILTER:
335 return ni_65xx_config_filter(dev, s, insn, data);
337 case INSN_CONFIG_DIO_OUTPUT:
338 if (s->type != COMEDI_SUBD_DIO)
340 devpriv->dio_direction[port] = COMEDI_OUTPUT;
341 writeb(0, devpriv->mite->daq_io_addr + Port_Select(port));
344 case INSN_CONFIG_DIO_INPUT:
345 if (s->type != COMEDI_SUBD_DIO)
347 devpriv->dio_direction[port] = COMEDI_INPUT;
348 writeb(1, devpriv->mite->daq_io_addr + Port_Select(port));
351 case INSN_CONFIG_DIO_QUERY:
352 if (s->type != COMEDI_SUBD_DIO)
354 data[1] = devpriv->dio_direction[port];
363 static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
364 struct comedi_subdevice *s,
365 struct comedi_insn *insn, unsigned int *data)
367 const struct ni_65xx_board *board = comedi_board(dev);
368 struct ni_65xx_private *devpriv = dev->private;
369 int base_bitfield_channel;
370 unsigned read_bits = 0;
371 int last_port_offset = ni_65xx_port_by_channel(s->n_chan - 1);
374 base_bitfield_channel = CR_CHAN(insn->chanspec);
375 for (port_offset = ni_65xx_port_by_channel(base_bitfield_channel);
376 port_offset <= last_port_offset; port_offset++) {
377 unsigned port = sprivate(s)->base_port + port_offset;
378 int base_port_channel = port_offset * ni_65xx_channels_per_port;
379 unsigned port_mask, port_data, port_read_bits;
380 int bitshift = base_port_channel - base_bitfield_channel;
387 port_mask >>= bitshift;
388 port_data >>= bitshift;
390 port_mask <<= -bitshift;
391 port_data <<= -bitshift;
397 devpriv->output_bits[port] &= ~port_mask;
398 devpriv->output_bits[port] |=
399 port_data & port_mask;
400 bits = devpriv->output_bits[port];
401 if (board->invert_outputs)
404 devpriv->mite->daq_io_addr +
408 readb(devpriv->mite->daq_io_addr + Port_Data(port));
409 if (s->type == COMEDI_SUBD_DO && board->invert_outputs) {
410 /* Outputs inverted, so invert value read back from
411 * DO subdevice. (Does not apply to boards with DIO
413 port_read_bits ^= 0xFF;
416 port_read_bits <<= bitshift;
418 port_read_bits >>= -bitshift;
420 read_bits |= port_read_bits;
426 static irqreturn_t ni_65xx_interrupt(int irq, void *d)
428 struct comedi_device *dev = d;
429 struct ni_65xx_private *devpriv = dev->private;
430 struct comedi_subdevice *s = dev->read_subdev;
433 status = readb(devpriv->mite->daq_io_addr + Change_Status);
434 if ((status & MasterInterruptStatus) == 0)
436 if ((status & EdgeStatus) == 0)
439 writeb(ClrEdge | ClrOverflow,
440 devpriv->mite->daq_io_addr + Clear_Register);
442 comedi_buf_put(s, 0);
443 s->async->events |= COMEDI_CB_EOS;
444 comedi_event(dev, s);
448 static int ni_65xx_intr_cmdtest(struct comedi_device *dev,
449 struct comedi_subdevice *s,
450 struct comedi_cmd *cmd)
454 /* Step 1 : check if triggers are trivially valid */
456 err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
457 err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
458 err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
459 err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
460 err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
465 /* Step 2a : make sure trigger sources are unique */
466 /* Step 2b : and mutually compatible */
471 /* Step 3: check if arguments are trivially valid */
473 err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
474 err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
475 err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
476 err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
477 err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
482 /* step 4: fix up any arguments */
490 static int ni_65xx_intr_cmd(struct comedi_device *dev,
491 struct comedi_subdevice *s)
493 struct ni_65xx_private *devpriv = dev->private;
495 writeb(ClrEdge | ClrOverflow,
496 devpriv->mite->daq_io_addr + Clear_Register);
497 writeb(FallingEdgeIntEnable | RisingEdgeIntEnable |
498 MasterInterruptEnable | EdgeIntEnable,
499 devpriv->mite->daq_io_addr + Master_Interrupt_Control);
504 static int ni_65xx_intr_cancel(struct comedi_device *dev,
505 struct comedi_subdevice *s)
507 struct ni_65xx_private *devpriv = dev->private;
509 writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
514 static int ni_65xx_intr_insn_bits(struct comedi_device *dev,
515 struct comedi_subdevice *s,
516 struct comedi_insn *insn, unsigned int *data)
522 static int ni_65xx_intr_insn_config(struct comedi_device *dev,
523 struct comedi_subdevice *s,
524 struct comedi_insn *insn,
527 struct ni_65xx_private *devpriv = dev->private;
531 if (data[0] != INSN_CONFIG_CHANGE_NOTIFY)
535 devpriv->mite->daq_io_addr +
536 Rising_Edge_Detection_Enable(0));
538 devpriv->mite->daq_io_addr +
539 Rising_Edge_Detection_Enable(0x10));
540 writeb(data[1] >> 16,
541 devpriv->mite->daq_io_addr +
542 Rising_Edge_Detection_Enable(0x20));
543 writeb(data[1] >> 24,
544 devpriv->mite->daq_io_addr +
545 Rising_Edge_Detection_Enable(0x30));
548 devpriv->mite->daq_io_addr +
549 Falling_Edge_Detection_Enable(0));
551 devpriv->mite->daq_io_addr +
552 Falling_Edge_Detection_Enable(0x10));
553 writeb(data[2] >> 16,
554 devpriv->mite->daq_io_addr +
555 Falling_Edge_Detection_Enable(0x20));
556 writeb(data[2] >> 24,
557 devpriv->mite->daq_io_addr +
558 Falling_Edge_Detection_Enable(0x30));
563 static int ni_65xx_auto_attach(struct comedi_device *dev,
564 unsigned long context)
566 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
567 const struct ni_65xx_board *board = NULL;
568 struct ni_65xx_private *devpriv;
569 struct ni_65xx_subdevice_private *spriv;
570 struct comedi_subdevice *s;
574 if (context < ARRAY_SIZE(ni_65xx_boards))
575 board = &ni_65xx_boards[context];
578 dev->board_ptr = board;
579 dev->board_name = board->name;
581 ret = comedi_pci_enable(dev);
585 devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
589 devpriv->mite = mite_alloc(pcidev);
593 ret = mite_setup(devpriv->mite);
595 dev_warn(dev->class_dev, "error setting up mite\n");
599 dev->irq = pcidev->irq;
600 dev_info(dev->class_dev, "board: %s, ID=0x%02x", dev->board_name,
601 readb(devpriv->mite->daq_io_addr + ID_Register));
603 ret = comedi_alloc_subdevices(dev, 4);
607 s = &dev->subdevices[0];
608 if (board->num_di_ports) {
609 s->type = COMEDI_SUBD_DI;
610 s->subdev_flags = SDF_READABLE;
612 board->num_di_ports * ni_65xx_channels_per_port;
613 s->range_table = &range_digital;
615 s->insn_config = ni_65xx_dio_insn_config;
616 s->insn_bits = ni_65xx_dio_insn_bits;
617 spriv = comedi_alloc_spriv(s, sizeof(*spriv));
620 spriv->base_port = 0;
622 s->type = COMEDI_SUBD_UNUSED;
625 s = &dev->subdevices[1];
626 if (board->num_do_ports) {
627 s->type = COMEDI_SUBD_DO;
628 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
630 board->num_do_ports * ni_65xx_channels_per_port;
631 s->range_table = &range_digital;
633 s->insn_bits = ni_65xx_dio_insn_bits;
634 spriv = comedi_alloc_spriv(s, sizeof(*spriv));
637 spriv->base_port = board->num_di_ports;
639 s->type = COMEDI_SUBD_UNUSED;
642 s = &dev->subdevices[2];
643 if (board->num_dio_ports) {
644 s->type = COMEDI_SUBD_DIO;
645 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
647 board->num_dio_ports * ni_65xx_channels_per_port;
648 s->range_table = &range_digital;
650 s->insn_config = ni_65xx_dio_insn_config;
651 s->insn_bits = ni_65xx_dio_insn_bits;
652 spriv = comedi_alloc_spriv(s, sizeof(*spriv));
655 spriv->base_port = 0;
656 for (i = 0; i < board->num_dio_ports; ++i) {
657 /* configure all ports for input */
659 devpriv->mite->daq_io_addr +
663 s->type = COMEDI_SUBD_UNUSED;
666 s = &dev->subdevices[3];
667 dev->read_subdev = s;
668 s->type = COMEDI_SUBD_DI;
669 s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
671 s->range_table = &range_unknown;
674 s->do_cmdtest = ni_65xx_intr_cmdtest;
675 s->do_cmd = ni_65xx_intr_cmd;
676 s->cancel = ni_65xx_intr_cancel;
677 s->insn_bits = ni_65xx_intr_insn_bits;
678 s->insn_config = ni_65xx_intr_insn_config;
680 for (i = 0; i < ni_65xx_total_num_ports(board); ++i) {
682 devpriv->mite->daq_io_addr + Filter_Enable(i));
683 if (board->invert_outputs)
685 devpriv->mite->daq_io_addr + Port_Data(i));
688 devpriv->mite->daq_io_addr + Port_Data(i));
690 writeb(ClrEdge | ClrOverflow,
691 devpriv->mite->daq_io_addr + Clear_Register);
693 devpriv->mite->daq_io_addr + Master_Interrupt_Control);
695 /* Set filter interval to 0 (32bit reg) */
696 writeb(0x00000000, devpriv->mite->daq_io_addr + Filter_Interval);
698 ret = request_irq(dev->irq, ni_65xx_interrupt, IRQF_SHARED,
702 dev_warn(dev->class_dev, "irq not available\n");
708 static void ni_65xx_detach(struct comedi_device *dev)
710 struct ni_65xx_private *devpriv = dev->private;
712 if (devpriv && devpriv->mite && devpriv->mite->daq_io_addr) {
714 devpriv->mite->daq_io_addr +
715 Master_Interrupt_Control);
718 free_irq(dev->irq, dev);
720 mite_detach(devpriv->mite);
721 comedi_pci_disable(dev);
724 static struct comedi_driver ni_65xx_driver = {
725 .driver_name = "ni_65xx",
726 .module = THIS_MODULE,
727 .auto_attach = ni_65xx_auto_attach,
728 .detach = ni_65xx_detach,
731 static int ni_65xx_pci_probe(struct pci_dev *dev,
732 const struct pci_device_id *id)
734 return comedi_pci_auto_config(dev, &ni_65xx_driver, id->driver_data);
737 static const struct pci_device_id ni_65xx_pci_table[] = {
738 { PCI_VDEVICE(NI, 0x1710), BOARD_PXI6509 },
739 { PCI_VDEVICE(NI, 0x7085), BOARD_PCI6509 },
740 { PCI_VDEVICE(NI, 0x7086), BOARD_PXI6528 },
741 { PCI_VDEVICE(NI, 0x7087), BOARD_PCI6515 },
742 { PCI_VDEVICE(NI, 0x7088), BOARD_PCI6514 },
743 { PCI_VDEVICE(NI, 0x70a9), BOARD_PCI6528 },
744 { PCI_VDEVICE(NI, 0x70c3), BOARD_PCI6511 },
745 { PCI_VDEVICE(NI, 0x70c8), BOARD_PCI6513 },
746 { PCI_VDEVICE(NI, 0x70c9), BOARD_PXI6515 },
747 { PCI_VDEVICE(NI, 0x70cc), BOARD_PCI6512 },
748 { PCI_VDEVICE(NI, 0x70cd), BOARD_PXI6514 },
749 { PCI_VDEVICE(NI, 0x70d1), BOARD_PXI6513 },
750 { PCI_VDEVICE(NI, 0x70d2), BOARD_PXI6512 },
751 { PCI_VDEVICE(NI, 0x70d3), BOARD_PXI6511 },
752 { PCI_VDEVICE(NI, 0x7124), BOARD_PCI6510 },
753 { PCI_VDEVICE(NI, 0x7125), BOARD_PCI6516 },
754 { PCI_VDEVICE(NI, 0x7126), BOARD_PCI6517 },
755 { PCI_VDEVICE(NI, 0x7127), BOARD_PCI6518 },
756 { PCI_VDEVICE(NI, 0x7128), BOARD_PCI6519 },
757 { PCI_VDEVICE(NI, 0x718b), BOARD_PCI6521 },
758 { PCI_VDEVICE(NI, 0x718c), BOARD_PXI6521 },
759 { PCI_VDEVICE(NI, 0x71c5), BOARD_PCI6520 },
762 MODULE_DEVICE_TABLE(pci, ni_65xx_pci_table);
764 static struct pci_driver ni_65xx_pci_driver = {
766 .id_table = ni_65xx_pci_table,
767 .probe = ni_65xx_pci_probe,
768 .remove = comedi_pci_auto_unconfig,
770 module_comedi_pci_driver(ni_65xx_driver, ni_65xx_pci_driver);
772 MODULE_AUTHOR("Comedi http://www.comedi.org");
773 MODULE_DESCRIPTION("Comedi low-level driver");
774 MODULE_LICENSE("GPL");