2 comedi/drivers/ni_atmio.c
3 Hardware driver for NI AT-MIO E series cards
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
20 Description: National Instruments AT-MIO-E series
22 Devices: [National Instruments] AT-MIO-16E-1 (ni_atmio),
23 AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3,
24 AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10
26 Updated: Thu May 1 20:03:02 CDT 2003
28 The driver has 2.6 kernel isapnp support, and
29 will automatically probe for a supported board if the
30 I/O base is left unspecified with comedi_config.
32 the isapnp id numbers are unknown. If your board is not
33 recognized, please send the output of 'cat /proc/isapnp'
34 (you may need to modprobe the isa-pnp module for
35 /proc/isapnp to exist) so the
36 id numbers for your board can be added to the driver.
38 Otherwise, you can use the isapnptools package to configure
39 your board. Use isapnp to
40 configure the I/O base and IRQ for the board, and then pass
42 parameters in comedi_config. A sample isapnp.conf file is included
43 in the etc/ directory of Comedilib.
45 Comedilib includes a utility to autocalibrate these boards. The
46 boards seem to boot into a state where the all calibration DACs
47 are at one extreme of their range, thus the default calibration
48 is terrible. Calibration at boot is strongly encouraged.
50 To use the extended digital I/O on some of the boards, enable the
51 8255 driver when configuring the Comedi source tree.
53 External triggering is supported for some events. The channel index
54 (scan_begin_arg, etc.) maps to PFI0 - PFI9.
56 Some of the more esoteric triggering possibilities of these boards
60 The real guts of the driver is in ni_mio_common.c, which is included
61 both here and in ni_pcimio.c
63 Interrupt support added by Truxton Fulton <trux@truxton.com>
65 References for specifications:
67 340747b.pdf Register Level Programmer Manual (obsolete)
68 340747c.pdf Register Level Programmer Manual (new)
69 DAQ-STC reference manual
71 Other possibly relevant info:
73 320517c.pdf User manual (obsolete)
74 320517f.pdf User manual (new)
76 320906c.pdf maximum signal ratings
78 321791a.pdf discontinuation of at-mio-16e-10 rev. c
79 321808a.pdf about at-mio-16e-10 rev P
80 321837a.pdf discontinuation of at-mio-16de-10 rev d
81 321838a.pdf about at-mio-16de-10 rev N
85 need to deal with external reference for DAC, and other DAC
86 properties in board properties
88 deal with at-mio-16de-10 revision D to N changes, etc.
92 #include <linux/module.h>
93 #include <linux/interrupt.h>
94 #include "../comedidev.h"
96 #include <linux/isapnp.h>
110 static const struct ni_board_struct ni_boards[] = {
112 .isapnp_id = 0x0000, /* XXX unknown */
113 .name = "at-mio-16e-1",
116 .ai_fifo_depth = 8192,
118 .gainlkup = ai_gain_16,
122 .ao_fifo_depth = 2048,
123 .ao_range_table = &range_ni_E_ao_ext,
127 .num_p0_dio_channels = 8,
132 .name = "at-mio-16e-2",
135 .ai_fifo_depth = 2048,
137 .gainlkup = ai_gain_16,
141 .ao_fifo_depth = 2048,
142 .ao_range_table = &range_ni_E_ao_ext,
146 .num_p0_dio_channels = 8,
151 .name = "at-mio-16e-10",
154 .ai_fifo_depth = 512,
156 .gainlkup = ai_gain_16,
161 .ao_range_table = &range_ni_E_ao_ext,
164 .num_p0_dio_channels = 8,
165 .caldac = {ad8804_debug},
170 .name = "at-mio-16de-10",
173 .ai_fifo_depth = 512,
175 .gainlkup = ai_gain_16,
180 .ao_range_table = &range_ni_E_ao_ext,
183 .num_p0_dio_channels = 8,
184 .caldac = {ad8804_debug},
189 .name = "at-mio-64e-3",
192 .ai_fifo_depth = 2048,
194 .gainlkup = ai_gain_16,
198 .ao_fifo_depth = 2048,
199 .ao_range_table = &range_ni_E_ao_ext,
203 .num_p0_dio_channels = 8,
204 .caldac = {ad8804_debug},
208 .name = "at-mio-16xe-50",
211 .ai_fifo_depth = 512,
213 .gainlkup = ai_gain_8,
218 .ao_range_table = &range_bipolar10,
221 .num_p0_dio_channels = 8,
222 .caldac = {dac8800, dac8043},
226 .isapnp_id = 0x0000, /* XXX unknown */
227 .name = "at-mio-16xe-10",
230 .ai_fifo_depth = 512,
232 .gainlkup = ai_gain_14,
236 .ao_fifo_depth = 2048,
237 .ao_range_table = &range_ni_E_ao_ext,
240 .num_p0_dio_channels = 8,
241 .caldac = {dac8800, dac8043, ad8522},
245 .isapnp_id = 0x0000, /* XXX unknown */
246 .name = "at-ai-16xe-10",
249 .ai_fifo_depth = 512,
250 .alwaysdither = 1, /* unknown */
251 .gainlkup = ai_gain_14,
257 .num_p0_dio_channels = 8,
258 .caldac = {dac8800, dac8043, ad8522},
263 static const int ni_irqpin[] = {
264 -1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7
267 #define IRQ_POLARITY 0
269 #include "ni_mio_common.c"
271 static struct pnp_device_id device_ids[] = {
272 {.id = "NIC1900", .driver_data = 0},
273 {.id = "NIC2400", .driver_data = 0},
274 {.id = "NIC2500", .driver_data = 0},
275 {.id = "NIC2600", .driver_data = 0},
276 {.id = "NIC2700", .driver_data = 0},
280 MODULE_DEVICE_TABLE(pnp, device_ids);
282 static int ni_isapnp_find_board(struct pnp_dev **dev)
284 struct pnp_dev *isapnp_dev = NULL;
287 for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
288 isapnp_dev = pnp_find_dev(NULL,
289 ISAPNP_VENDOR('N', 'I', 'C'),
290 ISAPNP_FUNCTION(ni_boards[i].
293 if (isapnp_dev == NULL || isapnp_dev->card == NULL)
296 if (pnp_device_attach(isapnp_dev) < 0) {
298 ("ni_atmio: %s found but already active, skipping.\n",
302 if (pnp_activate_dev(isapnp_dev) < 0) {
303 pnp_device_detach(isapnp_dev);
306 if (!pnp_port_valid(isapnp_dev, 0)
307 || !pnp_irq_valid(isapnp_dev, 0)) {
308 pnp_device_detach(isapnp_dev);
309 printk("ni_atmio: pnp invalid port or irq, aborting\n");
314 if (i == ARRAY_SIZE(ni_boards))
320 static int ni_getboardtype(struct comedi_device *dev)
322 int device_id = ni_read_eeprom(dev, 511);
325 for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
326 if (ni_boards[i].device_id == device_id)
330 if (device_id == 255)
331 printk(" can't find board\n");
332 else if (device_id == 0)
333 printk(" EEPROM read error (?) or device not found\n");
335 printk(" unknown device ID %d -- contact author\n", device_id);
340 static int ni_atmio_attach(struct comedi_device *dev,
341 struct comedi_devconfig *it)
343 const struct ni_board_struct *boardtype;
344 struct ni_private *devpriv;
345 struct pnp_dev *isapnp_dev;
347 unsigned long iobase;
351 ret = ni_alloc_private(dev);
354 devpriv = dev->private;
356 iobase = it->options[0];
357 irq = it->options[1];
360 ret = ni_isapnp_find_board(&isapnp_dev);
364 iobase = pnp_port_start(isapnp_dev, 0);
365 irq = pnp_irq(isapnp_dev, 0);
366 comedi_set_hw_dev(dev, &isapnp_dev->dev);
369 ret = comedi_request_region(dev, iobase, NI_SIZE);
375 board = ni_getboardtype(dev);
379 dev->board_ptr = ni_boards + board;
380 boardtype = comedi_board(dev);
382 printk(" %s", boardtype->name);
383 dev->board_name = boardtype->name;
388 if (irq > 15 || ni_irqpin[irq] == -1) {
389 printk(" invalid irq %u\n", irq);
392 printk(" ( irq = %u )", irq);
393 ret = request_irq(irq, ni_E_interrupt, 0,
397 printk(" irq not available\n");
403 /* generic E series stuff in ni_mio_common.c */
405 ret = ni_E_init(dev, ni_irqpin[dev->irq]);
413 static void ni_atmio_detach(struct comedi_device *dev)
415 struct pnp_dev *isapnp_dev;
417 mio_common_detach(dev);
418 comedi_legacy_detach(dev);
420 isapnp_dev = dev->hw_dev ? to_pnp_dev(dev->hw_dev) : NULL;
422 pnp_device_detach(isapnp_dev);
425 static struct comedi_driver ni_atmio_driver = {
426 .driver_name = "ni_atmio",
427 .module = THIS_MODULE,
428 .attach = ni_atmio_attach,
429 .detach = ni_atmio_detach,
431 module_comedi_driver(ni_atmio_driver);