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>
105 static const struct ni_board_struct ni_boards[] = {
107 .name = "at-mio-16e-1",
109 .isapnp_id = 0x0000, /* XXX unknown */
111 .ai_maxdata = 0x0fff,
112 .ai_fifo_depth = 8192,
113 .gainlkup = ai_gain_16,
116 .ao_maxdata = 0x0fff,
117 .ao_fifo_depth = 2048,
118 .ao_range_table = &range_ni_E_ao_ext,
120 .caldac = { mb88341 },
122 .name = "at-mio-16e-2",
126 .ai_maxdata = 0x0fff,
127 .ai_fifo_depth = 2048,
128 .gainlkup = ai_gain_16,
131 .ao_maxdata = 0x0fff,
132 .ao_fifo_depth = 2048,
133 .ao_range_table = &range_ni_E_ao_ext,
135 .caldac = { mb88341 },
137 .name = "at-mio-16e-10",
141 .ai_maxdata = 0x0fff,
142 .ai_fifo_depth = 512,
143 .gainlkup = ai_gain_16,
146 .ao_maxdata = 0x0fff,
147 .ao_range_table = &range_ni_E_ao_ext,
149 .caldac = { ad8804_debug },
151 .name = "at-mio-16de-10",
155 .ai_maxdata = 0x0fff,
156 .ai_fifo_depth = 512,
157 .gainlkup = ai_gain_16,
160 .ao_maxdata = 0x0fff,
161 .ao_range_table = &range_ni_E_ao_ext,
163 .caldac = { ad8804_debug },
166 .name = "at-mio-64e-3",
170 .ai_maxdata = 0x0fff,
171 .ai_fifo_depth = 2048,
172 .gainlkup = ai_gain_16,
175 .ao_maxdata = 0x0fff,
176 .ao_fifo_depth = 2048,
177 .ao_range_table = &range_ni_E_ao_ext,
179 .caldac = { ad8804_debug },
181 .name = "at-mio-16xe-50",
185 .ai_maxdata = 0xffff,
186 .ai_fifo_depth = 512,
188 .gainlkup = ai_gain_8,
191 .ao_maxdata = 0x0fff,
192 .ao_range_table = &range_bipolar10,
194 .caldac = { dac8800, dac8043 },
196 .name = "at-mio-16xe-10",
198 .isapnp_id = 0x0000, /* XXX unknown */
200 .ai_maxdata = 0xffff,
201 .ai_fifo_depth = 512,
203 .gainlkup = ai_gain_14,
206 .ao_maxdata = 0xffff,
207 .ao_fifo_depth = 2048,
208 .ao_range_table = &range_ni_E_ao_ext,
210 .caldac = { dac8800, dac8043, ad8522 },
212 .name = "at-ai-16xe-10",
214 .isapnp_id = 0x0000, /* XXX unknown */
216 .ai_maxdata = 0xffff,
217 .ai_fifo_depth = 512,
218 .alwaysdither = 1, /* unknown */
219 .gainlkup = ai_gain_14,
221 .caldac = { dac8800, dac8043, ad8522 },
225 static const int ni_irqpin[] = {
226 -1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7
229 #include "ni_mio_common.c"
231 static struct pnp_device_id device_ids[] = {
232 {.id = "NIC1900", .driver_data = 0},
233 {.id = "NIC2400", .driver_data = 0},
234 {.id = "NIC2500", .driver_data = 0},
235 {.id = "NIC2600", .driver_data = 0},
236 {.id = "NIC2700", .driver_data = 0},
240 MODULE_DEVICE_TABLE(pnp, device_ids);
242 static int ni_isapnp_find_board(struct pnp_dev **dev)
244 struct pnp_dev *isapnp_dev = NULL;
247 for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
248 isapnp_dev = pnp_find_dev(NULL,
249 ISAPNP_VENDOR('N', 'I', 'C'),
250 ISAPNP_FUNCTION(ni_boards[i].
253 if (!isapnp_dev || !isapnp_dev->card)
256 if (pnp_device_attach(isapnp_dev) < 0)
259 if (pnp_activate_dev(isapnp_dev) < 0) {
260 pnp_device_detach(isapnp_dev);
264 if (!pnp_port_valid(isapnp_dev, 0) ||
265 !pnp_irq_valid(isapnp_dev, 0)) {
266 pnp_device_detach(isapnp_dev);
271 if (i == ARRAY_SIZE(ni_boards))
277 static const struct ni_board_struct *ni_atmio_probe(struct comedi_device *dev)
279 int device_id = ni_read_eeprom(dev, 511);
282 for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
283 const struct ni_board_struct *board = &ni_boards[i];
285 if (board->device_id == device_id)
288 if (device_id == 255)
289 dev_err(dev->class_dev, "can't find board\n");
290 else if (device_id == 0)
291 dev_err(dev->class_dev,
292 "EEPROM read error (?) or device not found\n");
294 dev_err(dev->class_dev,
295 "unknown device ID %d -- contact author\n", device_id);
300 static int ni_atmio_attach(struct comedi_device *dev,
301 struct comedi_devconfig *it)
303 const struct ni_board_struct *board;
304 struct pnp_dev *isapnp_dev;
306 unsigned long iobase;
309 ret = ni_alloc_private(dev);
313 iobase = it->options[0];
314 irq = it->options[1];
317 ret = ni_isapnp_find_board(&isapnp_dev);
321 iobase = pnp_port_start(isapnp_dev, 0);
322 irq = pnp_irq(isapnp_dev, 0);
323 comedi_set_hw_dev(dev, &isapnp_dev->dev);
326 ret = comedi_request_region(dev, iobase, 0x20);
330 board = ni_atmio_probe(dev);
333 dev->board_ptr = board;
334 dev->board_name = board->name;
339 if (irq > 15 || ni_irqpin[irq] == -1)
341 ret = request_irq(irq, ni_E_interrupt, 0,
342 dev->board_name, dev);
348 /* generic E series stuff in ni_mio_common.c */
350 ret = ni_E_init(dev, ni_irqpin[dev->irq], 0);
357 static void ni_atmio_detach(struct comedi_device *dev)
359 struct pnp_dev *isapnp_dev;
361 mio_common_detach(dev);
362 comedi_legacy_detach(dev);
364 isapnp_dev = dev->hw_dev ? to_pnp_dev(dev->hw_dev) : NULL;
366 pnp_device_detach(isapnp_dev);
369 static struct comedi_driver ni_atmio_driver = {
370 .driver_name = "ni_atmio",
371 .module = THIS_MODULE,
372 .attach = ni_atmio_attach,
373 .detach = ni_atmio_detach,
375 module_comedi_driver(ni_atmio_driver);