1 /* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
2 /*
3 * comedi.h
4 * header file for COMEDI user API
5 *
6 * COMEDI - Linux Control and Measurement Device Interface
7 * Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
8 */
9
10 #ifndef _COMEDI_H
11 #define _COMEDI_H
12
13 #define COMEDI_MAJORVERSION 0
14 #define COMEDI_MINORVERSION 7
15 #define COMEDI_MICROVERSION 76
16 #define VERSION "0.7.76"
17
18 /* comedi's major device number */
19 #define COMEDI_MAJOR 98
20
21 /*
22 * maximum number of minor devices. This can be increased, although
23 * kernel structures are currently statically allocated, thus you
24 * don't want this to be much more than you actually use.
25 */
26 #define COMEDI_NDEVICES 16
27
28 /* number of config options in the config structure */
29 #define COMEDI_NDEVCONFOPTS 32
30
31 /*
32 * NOTE: 'comedi_config --init-data' is deprecated
33 *
34 * The following indexes in the config options were used by
35 * comedi_config to pass firmware blobs from user space to the
36 * comedi drivers. The request_firmware() hotplug interface is
37 * now used by all comedi drivers instead.
38 */
39
40 /* length of nth chunk of firmware data -*/
41 #define COMEDI_DEVCONF_AUX_DATA3_LENGTH 25
42 #define COMEDI_DEVCONF_AUX_DATA2_LENGTH 26
43 #define COMEDI_DEVCONF_AUX_DATA1_LENGTH 27
44 #define COMEDI_DEVCONF_AUX_DATA0_LENGTH 28
45 /* most significant 32 bits of pointer address (if needed) */
46 #define COMEDI_DEVCONF_AUX_DATA_HI 29
47 /* least significant 32 bits of pointer address */
48 #define COMEDI_DEVCONF_AUX_DATA_LO 30
49 #define COMEDI_DEVCONF_AUX_DATA_LENGTH 31 /* total data length */
50
51 /* max length of device and driver names */
52 #define COMEDI_NAMELEN 20
53
54 /* packs and unpacks a channel/range number */
55
56 #define CR_PACK(chan, rng, aref) \
57 ((((aref) & 0x3) << 24) | (((rng) & 0xff) << 16) | (chan))
58 #define CR_PACK_FLAGS(chan, range, aref, flags) \
59 (CR_PACK(chan, range, aref) | ((flags) & CR_FLAGS_MASK))
60
61 #define CR_CHAN(a) ((a) & 0xffff)
62 #define CR_RANGE(a) (((a) >> 16) & 0xff)
63 #define CR_AREF(a) (((a) >> 24) & 0x03)
64
65 #define CR_FLAGS_MASK 0xfc000000
66 #define CR_ALT_FILTER 0x04000000
67 #define CR_DITHER CR_ALT_FILTER
68 #define CR_DEGLITCH CR_ALT_FILTER
69 #define CR_ALT_SOURCE 0x08000000
70 #define CR_EDGE 0x40000000
71 #define CR_INVERT 0x80000000
72
73 #define AREF_GROUND 0x00 /* analog ref = analog ground */
74 #define AREF_COMMON 0x01 /* analog ref = analog common */
75 #define AREF_DIFF 0x02 /* analog ref = differential */
76 #define AREF_OTHER 0x03 /* analog ref = other (undefined) */
77
78 /* counters -- these are arbitrary values */
79 #define GPCT_RESET 0x0001
80 #define GPCT_SET_SOURCE 0x0002
81 #define GPCT_SET_GATE 0x0004
82 #define GPCT_SET_DIRECTION 0x0008
83 #define GPCT_SET_OPERATION 0x0010
84 #define GPCT_ARM 0x0020
85 #define GPCT_DISARM 0x0040
86 #define GPCT_GET_INT_CLK_FRQ 0x0080
87
88 #define GPCT_INT_CLOCK 0x0001
89 #define GPCT_EXT_PIN 0x0002
90 #define GPCT_NO_GATE 0x0004
91 #define GPCT_UP 0x0008
92 #define GPCT_DOWN 0x0010
93 #define GPCT_HWUD 0x0020
94 #define GPCT_SIMPLE_EVENT 0x0040
95 #define GPCT_SINGLE_PERIOD 0x0080
96 #define GPCT_SINGLE_PW 0x0100
97 #define GPCT_CONT_PULSE_OUT 0x0200
98 #define GPCT_SINGLE_PULSE_OUT 0x0400
99
100 /* instructions */
101
102 #define INSN_MASK_WRITE 0x8000000
103 #define INSN_MASK_READ 0x4000000
104 #define INSN_MASK_SPECIAL 0x2000000
105
106 #define INSN_READ (0 | INSN_MASK_READ)
107 #define INSN_WRITE (1 | INSN_MASK_WRITE)
108 #define INSN_BITS (2 | INSN_MASK_READ | INSN_MASK_WRITE)
109 #define INSN_CONFIG (3 | INSN_MASK_READ | INSN_MASK_WRITE)
110 #define INSN_DEVICE_CONFIG (INSN_CONFIG | INSN_MASK_SPECIAL)
111 #define INSN_GTOD (4 | INSN_MASK_READ | INSN_MASK_SPECIAL)
112 #define INSN_WAIT (5 | INSN_MASK_WRITE | INSN_MASK_SPECIAL)
113 #define INSN_INTTRIG (6 | INSN_MASK_WRITE | INSN_MASK_SPECIAL)
114
115 /* command flags */
116 /* These flags are used in comedi_cmd structures */
117
118 #define CMDF_BOGUS 0x00000001 /* do the motions */
119
120 /* try to use a real-time interrupt while performing command */
121 #define CMDF_PRIORITY 0x00000008
122
123 /* wake up on end-of-scan events */
124 #define CMDF_WAKE_EOS 0x00000020
125
126 #define CMDF_WRITE 0x00000040
127
128 #define CMDF_RAWDATA 0x00000080
129
130 /* timer rounding definitions */
131 #define CMDF_ROUND_MASK 0x00030000
132 #define CMDF_ROUND_NEAREST 0x00000000
133 #define CMDF_ROUND_DOWN 0x00010000
134 #define CMDF_ROUND_UP 0x00020000
135 #define CMDF_ROUND_UP_NEXT 0x00030000
136
137 #define COMEDI_EV_START 0x00040000
138 #define COMEDI_EV_SCAN_BEGIN 0x00080000
139 #define COMEDI_EV_CONVERT 0x00100000
140 #define COMEDI_EV_SCAN_END 0x00200000
141 #define COMEDI_EV_STOP 0x00400000
142
143 /* compatibility definitions */
144 #define TRIG_BOGUS CMDF_BOGUS
145 #define TRIG_RT CMDF_PRIORITY
146 #define TRIG_WAKE_EOS CMDF_WAKE_EOS
147 #define TRIG_WRITE CMDF_WRITE
148 #define TRIG_ROUND_MASK CMDF_ROUND_MASK
149 #define TRIG_ROUND_NEAREST CMDF_ROUND_NEAREST
150 #define TRIG_ROUND_DOWN CMDF_ROUND_DOWN
151 #define TRIG_ROUND_UP CMDF_ROUND_UP
152 #define TRIG_ROUND_UP_NEXT CMDF_ROUND_UP_NEXT
153
154 /* trigger sources */
155
156 #define TRIG_ANY 0xffffffff
157 #define TRIG_INVALID 0x00000000
158
159 #define TRIG_NONE 0x00000001 /* never trigger */
160 #define TRIG_NOW 0x00000002 /* trigger now + N ns */
161 #define TRIG_FOLLOW 0x00000004 /* trigger on next lower level trig */
162 #define TRIG_TIME 0x00000008 /* trigger at time N ns */
163 #define TRIG_TIMER 0x00000010 /* trigger at rate N ns */
164 #define TRIG_COUNT 0x00000020 /* trigger when count reaches N */
165 #define TRIG_EXT 0x00000040 /* trigger on external signal N */
166 #define TRIG_INT 0x00000080 /* trigger on comedi-internal signal N */
167 #define TRIG_OTHER 0x00000100 /* driver defined */
168
169 /* subdevice flags */
170
171 #define SDF_BUSY 0x0001 /* device is busy */
172 #define SDF_BUSY_OWNER 0x0002 /* device is busy with your job */
173 #define SDF_LOCKED 0x0004 /* subdevice is locked */
174 #define SDF_LOCK_OWNER 0x0008 /* you own lock */
175 #define SDF_MAXDATA 0x0010 /* maxdata depends on channel */
176 #define SDF_FLAGS 0x0020 /* flags depend on channel */
177 #define SDF_RANGETYPE 0x0040 /* range type depends on channel */
178 #define SDF_PWM_COUNTER 0x0080 /* PWM can automatically switch off */
179 #define SDF_PWM_HBRIDGE 0x0100 /* PWM is signed (H-bridge) */
180 #define SDF_CMD 0x1000 /* can do commands (deprecated) */
181 #define SDF_SOFT_CALIBRATED 0x2000 /* subdevice uses software calibration */
182 #define SDF_CMD_WRITE 0x4000 /* can do output commands */
183 #define SDF_CMD_READ 0x8000 /* can do input commands */
184
185 /* subdevice can be read (e.g. analog input) */
186 #define SDF_READABLE 0x00010000
187 /* subdevice can be written (e.g. analog output) */
188 #define SDF_WRITABLE 0x00020000
189 #define SDF_WRITEABLE SDF_WRITABLE /* spelling error in API */
190 /* subdevice does not have externally visible lines */
191 #define SDF_INTERNAL 0x00040000
192 #define SDF_GROUND 0x00100000 /* can do aref=ground */
193 #define SDF_COMMON 0x00200000 /* can do aref=common */
194 #define SDF_DIFF 0x00400000 /* can do aref=diff */
195 #define SDF_OTHER 0x00800000 /* can do aref=other */
196 #define SDF_DITHER 0x01000000 /* can do dithering */
197 #define SDF_DEGLITCH 0x02000000 /* can do deglitching */
198 #define SDF_MMAP 0x04000000 /* can do mmap() */
199 #define SDF_RUNNING 0x08000000 /* subdevice is acquiring data */
200 #define SDF_LSAMPL 0x10000000 /* subdevice uses 32-bit samples */
201 #define SDF_PACKED 0x20000000 /* subdevice can do packed DIO */
202
203 /* subdevice types */
204
205 /**
206 * enum comedi_subdevice_type - COMEDI subdevice types
207 * @COMEDI_SUBD_UNUSED: Unused subdevice.
208 * @COMEDI_SUBD_AI: Analog input.
209 * @COMEDI_SUBD_AO: Analog output.
210 * @COMEDI_SUBD_DI: Digital input.
211 * @COMEDI_SUBD_DO: Digital output.
212 * @COMEDI_SUBD_DIO: Digital input/output.
213 * @COMEDI_SUBD_COUNTER: Counter.
214 * @COMEDI_SUBD_TIMER: Timer.
215 * @COMEDI_SUBD_MEMORY: Memory, EEPROM, DPRAM.
216 * @COMEDI_SUBD_CALIB: Calibration DACs.
217 * @COMEDI_SUBD_PROC: Processor, DSP.
218 * @COMEDI_SUBD_SERIAL: Serial I/O.
219 * @COMEDI_SUBD_PWM: Pulse-Width Modulation output.
220 */
221 enum comedi_subdevice_type {
222 COMEDI_SUBD_UNUSED,
223 COMEDI_SUBD_AI,
224 COMEDI_SUBD_AO,
225 COMEDI_SUBD_DI,
226 COMEDI_SUBD_DO,
227 COMEDI_SUBD_DIO,
228 COMEDI_SUBD_COUNTER,
229 COMEDI_SUBD_TIMER,
230 COMEDI_SUBD_MEMORY,
231 COMEDI_SUBD_CALIB,
232 COMEDI_SUBD_PROC,
233 COMEDI_SUBD_SERIAL,
234 COMEDI_SUBD_PWM
235 };
236
237 /* configuration instructions */
238
239 /**
240 * enum comedi_io_direction - COMEDI I/O directions
241 * @COMEDI_INPUT: Input.
242 * @COMEDI_OUTPUT: Output.
243 * @COMEDI_OPENDRAIN: Open-drain (or open-collector) output.
244 *
245 * These are used by the %INSN_CONFIG_DIO_QUERY configuration instruction to
246 * report a direction. They may also be used in other places where a direction
247 * needs to be specified.
248 */
249 enum comedi_io_direction {
250 COMEDI_INPUT = 0,
251 COMEDI_OUTPUT = 1,
252 COMEDI_OPENDRAIN = 2
253 };
254
255 /**
256 * enum configuration_ids - COMEDI configuration instruction codes
257 * @INSN_CONFIG_DIO_INPUT: Configure digital I/O as input.
258 * @INSN_CONFIG_DIO_OUTPUT: Configure digital I/O as output.
259 * @INSN_CONFIG_DIO_OPENDRAIN: Configure digital I/O as open-drain (or open
260 * collector) output.
261 * @INSN_CONFIG_ANALOG_TRIG: Configure analog trigger.
262 * @INSN_CONFIG_ALT_SOURCE: Configure alternate input source.
263 * @INSN_CONFIG_DIGITAL_TRIG: Configure digital trigger.
264 * @INSN_CONFIG_BLOCK_SIZE: Configure block size for DMA transfers.
265 * @INSN_CONFIG_TIMER_1: Configure divisor for external clock.
266 * @INSN_CONFIG_FILTER: Configure a filter.
267 * @INSN_CONFIG_CHANGE_NOTIFY: Configure change notification for digital
268 * inputs. (New drivers should use
269 * %INSN_CONFIG_DIGITAL_TRIG instead.)
270 * @INSN_CONFIG_SERIAL_CLOCK: Configure clock for serial I/O.
271 * @INSN_CONFIG_BIDIRECTIONAL_DATA: Send and receive byte over serial I/O.
272 * @INSN_CONFIG_DIO_QUERY: Query direction of digital I/O channel.
273 * @INSN_CONFIG_PWM_OUTPUT: Configure pulse-width modulator output.
274 * @INSN_CONFIG_GET_PWM_OUTPUT: Get pulse-width modulator output configuration.
275 * @INSN_CONFIG_ARM: Arm a subdevice or channel.
276 * @INSN_CONFIG_DISARM: Disarm a subdevice or channel.
277 * @INSN_CONFIG_GET_COUNTER_STATUS: Get counter status.
278 * @INSN_CONFIG_RESET: Reset a subdevice or channel.
279 * @INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR: Configure counter/timer as
280 * single pulse generator.
281 * @INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR: Configure counter/timer as
282 * pulse train generator.
283 * @INSN_CONFIG_GPCT_QUADRATURE_ENCODER: Configure counter as a quadrature
284 * encoder.
285 * @INSN_CONFIG_SET_GATE_SRC: Set counter/timer gate source.
286 * @INSN_CONFIG_GET_GATE_SRC: Get counter/timer gate source.
287 * @INSN_CONFIG_SET_CLOCK_SRC: Set counter/timer master clock source.
288 * @INSN_CONFIG_GET_CLOCK_SRC: Get counter/timer master clock source.
289 * @INSN_CONFIG_SET_OTHER_SRC: Set counter/timer "other" source.
290 * @INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE: Get size (in bytes) of subdevice's
291 * on-board FIFOs used during streaming
292 * input/output.
293 * @INSN_CONFIG_SET_COUNTER_MODE: Set counter/timer mode.
294 * @INSN_CONFIG_8254_SET_MODE: (Deprecated) Same as
295 * %INSN_CONFIG_SET_COUNTER_MODE.
296 * @INSN_CONFIG_8254_READ_STATUS: Read status of 8254 counter channel.
297 * @INSN_CONFIG_SET_ROUTING: Set routing for a channel.
298 * @INSN_CONFIG_GET_ROUTING: Get routing for a channel.
299 * @INSN_CONFIG_PWM_SET_PERIOD: Set PWM period in nanoseconds.
300 * @INSN_CONFIG_PWM_GET_PERIOD: Get PWM period in nanoseconds.
301 * @INSN_CONFIG_GET_PWM_STATUS: Get PWM status.
302 * @INSN_CONFIG_PWM_SET_H_BRIDGE: Set PWM H bridge duty cycle and polarity for
303 * a relay simultaneously.
304 * @INSN_CONFIG_PWM_GET_H_BRIDGE: Get PWM H bridge duty cycle and polarity.
305 * @INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS: Get the hardware timing restraints,
306 * regardless of trigger sources.
307 */
308 enum configuration_ids {
309 INSN_CONFIG_DIO_INPUT = COMEDI_INPUT,
310 INSN_CONFIG_DIO_OUTPUT = COMEDI_OUTPUT,
311 INSN_CONFIG_DIO_OPENDRAIN = COMEDI_OPENDRAIN,
312 INSN_CONFIG_ANALOG_TRIG = 16,
313 /* INSN_CONFIG_WAVEFORM = 17, */
314 /* INSN_CONFIG_TRIG = 18, */
315 /* INSN_CONFIG_COUNTER = 19, */
316 INSN_CONFIG_ALT_SOURCE = 20,
317 INSN_CONFIG_DIGITAL_TRIG = 21,
318 INSN_CONFIG_BLOCK_SIZE = 22,
319 INSN_CONFIG_TIMER_1 = 23,
320 INSN_CONFIG_FILTER = 24,
321 INSN_CONFIG_CHANGE_NOTIFY = 25,
322
323 INSN_CONFIG_SERIAL_CLOCK = 26, /*ALPHA*/
324 INSN_CONFIG_BIDIRECTIONAL_DATA = 27,
325 INSN_CONFIG_DIO_QUERY = 28,
326 INSN_CONFIG_PWM_OUTPUT = 29,
327 INSN_CONFIG_GET_PWM_OUTPUT = 30,
328 INSN_CONFIG_ARM = 31,
329 INSN_CONFIG_DISARM = 32,
330 INSN_CONFIG_GET_COUNTER_STATUS = 33,
331 INSN_CONFIG_RESET = 34,
332 INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR = 1001,
333 INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR = 1002,
334 INSN_CONFIG_GPCT_QUADRATURE_ENCODER = 1003,
335 INSN_CONFIG_SET_GATE_SRC = 2001,
336 INSN_CONFIG_GET_GATE_SRC = 2002,
337 INSN_CONFIG_SET_CLOCK_SRC = 2003,
338 INSN_CONFIG_GET_CLOCK_SRC = 2004,
339 INSN_CONFIG_SET_OTHER_SRC = 2005,
340 INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE = 2006,
341 INSN_CONFIG_SET_COUNTER_MODE = 4097,
342 INSN_CONFIG_8254_SET_MODE = INSN_CONFIG_SET_COUNTER_MODE,
343 INSN_CONFIG_8254_READ_STATUS = 4098,
344 INSN_CONFIG_SET_ROUTING = 4099,
345 INSN_CONFIG_GET_ROUTING = 4109,
346 INSN_CONFIG_PWM_SET_PERIOD = 5000,
347 INSN_CONFIG_PWM_GET_PERIOD = 5001,
348 INSN_CONFIG_GET_PWM_STATUS = 5002,
349 INSN_CONFIG_PWM_SET_H_BRIDGE = 5003,
350 INSN_CONFIG_PWM_GET_H_BRIDGE = 5004,
351 INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS = 5005,
352 };
353
354 /**
355 * enum device_configuration_ids - COMEDI configuration instruction codes global
356 * to an entire device.
357 * @INSN_DEVICE_CONFIG_TEST_ROUTE: Validate the possibility of a
358 * globally-named route
359 * @INSN_DEVICE_CONFIG_CONNECT_ROUTE: Connect a globally-named route
360 * @INSN_DEVICE_CONFIG_DISCONNECT_ROUTE:Disconnect a globally-named route
361 * @INSN_DEVICE_CONFIG_GET_ROUTES: Get a list of all globally-named routes
362 * that are valid for a particular device.
363 */
364 enum device_config_route_ids {
365 INSN_DEVICE_CONFIG_TEST_ROUTE = 0,
366 INSN_DEVICE_CONFIG_CONNECT_ROUTE = 1,
367 INSN_DEVICE_CONFIG_DISCONNECT_ROUTE = 2,
368 INSN_DEVICE_CONFIG_GET_ROUTES = 3,
369 };
370
371 /**
372 * enum comedi_digital_trig_op - operations for configuring a digital trigger
373 * @COMEDI_DIGITAL_TRIG_DISABLE: Return digital trigger to its default,
374 * inactive, unconfigured state.
375 * @COMEDI_DIGITAL_TRIG_ENABLE_EDGES: Set rising and/or falling edge inputs
376 * that each can fire the trigger.
377 * @COMEDI_DIGITAL_TRIG_ENABLE_LEVELS: Set a combination of high and/or low
378 * level inputs that can fire the trigger.
379 *
380 * These are used with the %INSN_CONFIG_DIGITAL_TRIG configuration instruction.
381 * The data for the configuration instruction is as follows...
382 *
383 * data[%0] = %INSN_CONFIG_DIGITAL_TRIG
384 *
385 * data[%1] = trigger ID
386 *
387 * data[%2] = configuration operation
388 *
389 * data[%3] = configuration parameter 1
390 *
391 * data[%4] = configuration parameter 2
392 *
393 * data[%5] = configuration parameter 3
394 *
395 * The trigger ID (data[%1]) is used to differentiate multiple digital triggers
396 * belonging to the same subdevice. The configuration operation (data[%2]) is
397 * one of the enum comedi_digital_trig_op values. The configuration
398 * parameters (data[%3], data[%4], and data[%5]) depend on the operation; they
399 * are not used with %COMEDI_DIGITAL_TRIG_DISABLE.
400 *
401 * For %COMEDI_DIGITAL_TRIG_ENABLE_EDGES and %COMEDI_DIGITAL_TRIG_ENABLE_LEVELS,
402 * configuration parameter 1 (data[%3]) contains a "left-shift" value that
403 * specifies the input corresponding to bit 0 of configuration parameters 2
404 * and 3. This is useful if the trigger has more than 32 inputs.
405 *
406 * For %COMEDI_DIGITAL_TRIG_ENABLE_EDGES, configuration parameter 2 (data[%4])
407 * specifies which of up to 32 inputs have rising-edge sensitivity, and
408 * configuration parameter 3 (data[%5]) specifies which of up to 32 inputs
409 * have falling-edge sensitivity that can fire the trigger.
410 *
411 * For %COMEDI_DIGITAL_TRIG_ENABLE_LEVELS, configuration parameter 2 (data[%4])
412 * specifies which of up to 32 inputs must be at a high level, and
413 * configuration parameter 3 (data[%5]) specifies which of up to 32 inputs
414 * must be at a low level for the trigger to fire.
415 *
416 * Some sequences of %INSN_CONFIG_DIGITAL_TRIG instructions may have a (partly)
417 * accumulative effect, depending on the low-level driver. This is useful
418 * when setting up a trigger that has more than 32 inputs, or has a combination
419 * of edge- and level-triggered inputs.
420 */
421 enum comedi_digital_trig_op {
422 COMEDI_DIGITAL_TRIG_DISABLE = 0,
423 COMEDI_DIGITAL_TRIG_ENABLE_EDGES = 1,
424 COMEDI_DIGITAL_TRIG_ENABLE_LEVELS = 2
425 };
426
427 /**
428 * enum comedi_support_level - support level for a COMEDI feature
429 * @COMEDI_UNKNOWN_SUPPORT: Unspecified support for feature.
430 * @COMEDI_SUPPORTED: Feature is supported.
431 * @COMEDI_UNSUPPORTED: Feature is unsupported.
432 */
433 enum comedi_support_level {
434 COMEDI_UNKNOWN_SUPPORT = 0,
435 COMEDI_SUPPORTED,
436 COMEDI_UNSUPPORTED
437 };
438
439 /**
440 * enum comedi_counter_status_flags - counter status bits
441 * @COMEDI_COUNTER_ARMED: Counter is armed.
442 * @COMEDI_COUNTER_COUNTING: Counter is counting.
443 * @COMEDI_COUNTER_TERMINAL_COUNT: Counter reached terminal count.
444 *
445 * These bitwise values are used by the %INSN_CONFIG_GET_COUNTER_STATUS
446 * configuration instruction to report the status of a counter.
447 */
448 enum comedi_counter_status_flags {
449 COMEDI_COUNTER_ARMED = 0x1,
450 COMEDI_COUNTER_COUNTING = 0x2,
451 COMEDI_COUNTER_TERMINAL_COUNT = 0x4,
452 };
453
454 /* ioctls */
455
456 #define CIO 'd'
457 #define COMEDI_DEVCONFIG _IOW(CIO, 0, struct comedi_devconfig)
458 #define COMEDI_DEVINFO _IOR(CIO, 1, struct comedi_devinfo)
459 #define COMEDI_SUBDINFO _IOR(CIO, 2, struct comedi_subdinfo)
460 #define COMEDI_CHANINFO _IOR(CIO, 3, struct comedi_chaninfo)
461 /* _IOWR(CIO, 4, ...) is reserved */
462 #define COMEDI_LOCK _IO(CIO, 5)
463 #define COMEDI_UNLOCK _IO(CIO, 6)
464 #define COMEDI_CANCEL _IO(CIO, 7)
465 #define COMEDI_RANGEINFO _IOR(CIO, 8, struct comedi_rangeinfo)
466 #define COMEDI_CMD _IOR(CIO, 9, struct comedi_cmd)
467 #define COMEDI_CMDTEST _IOR(CIO, 10, struct comedi_cmd)
468 #define COMEDI_INSNLIST _IOR(CIO, 11, struct comedi_insnlist)
469 #define COMEDI_INSN _IOR(CIO, 12, struct comedi_insn)
470 #define COMEDI_BUFCONFIG _IOR(CIO, 13, struct comedi_bufconfig)
471 #define COMEDI_BUFINFO _IOWR(CIO, 14, struct comedi_bufinfo)
472 #define COMEDI_POLL _IO(CIO, 15)
473 #define COMEDI_SETRSUBD _IO(CIO, 16)
474 #define COMEDI_SETWSUBD _IO(CIO, 17)
475
476 /* structures */
477
478 /**
479 * struct comedi_insn - COMEDI instruction
480 * @insn: COMEDI instruction type (%INSN_xxx).
481 * @n: Length of @data[].
482 * @data: Pointer to data array operated on by the instruction.
483 * @subdev: Subdevice index.
484 * @chanspec: A packed "chanspec" value consisting of channel number,
485 * analog range index, analog reference type, and flags.
486 * @unused: Reserved for future use.
487 *
488 * This is used with the %COMEDI_INSN ioctl, and indirectly with the
489 * %COMEDI_INSNLIST ioctl.
490 */
491 struct comedi_insn {
492 unsigned int insn;
493 unsigned int n;
494 unsigned int __user *data;
495 unsigned int subdev;
496 unsigned int chanspec;
497 unsigned int unused[3];
498 };
499
500 /**
501 * struct comedi_insnlist - list of COMEDI instructions
502 * @n_insns: Number of COMEDI instructions.
503 * @insns: Pointer to array COMEDI instructions.
504 *
505 * This is used with the %COMEDI_INSNLIST ioctl.
506 */
507 struct comedi_insnlist {
508 unsigned int n_insns;
509 struct comedi_insn __user *insns;
510 };
511
512 /**
513 * struct comedi_cmd - COMEDI asynchronous acquisition command details
514 * @subdev: Subdevice index.
515 * @flags: Command flags (%CMDF_xxx).
516 * @start_src: "Start acquisition" trigger source (%TRIG_xxx).
517 * @start_arg: "Start acquisition" trigger argument.
518 * @scan_begin_src: "Scan begin" trigger source.
519 * @scan_begin_arg: "Scan begin" trigger argument.
520 * @convert_src: "Convert" trigger source.
521 * @convert_arg: "Convert" trigger argument.
522 * @scan_end_src: "Scan end" trigger source.
523 * @scan_end_arg: "Scan end" trigger argument.
524 * @stop_src: "Stop acquisition" trigger source.
525 * @stop_arg: "Stop acquisition" trigger argument.
526 * @chanlist: Pointer to array of "chanspec" values, containing a
527 * sequence of channel numbers packed with analog range
528 * index, etc.
529 * @chanlist_len: Number of channels in sequence.
530 * @data: Pointer to miscellaneous set-up data (not used).
531 * @data_len: Length of miscellaneous set-up data.
532 *
533 * This is used with the %COMEDI_CMD or %COMEDI_CMDTEST ioctl to set-up
534 * or validate an asynchronous acquisition command. The ioctl may modify
535 * the &struct comedi_cmd and copy it back to the caller.
536 *
537 * Optional command @flags values that can be ORed together...
538 *
539 * %CMDF_BOGUS - makes %COMEDI_CMD ioctl return error %EAGAIN instead of
540 * starting the command.
541 *
542 * %CMDF_PRIORITY - requests "hard real-time" processing (which is not
543 * supported in this version of COMEDI).
544 *
545 * %CMDF_WAKE_EOS - requests the command makes data available for reading
546 * after every "scan" period.
547 *
548 * %CMDF_WRITE - marks the command as being in the "write" (to device)
549 * direction. This does not need to be specified by the caller unless the
550 * subdevice supports commands in either direction.
551 *
552 * %CMDF_RAWDATA - prevents the command from "munging" the data between the
553 * COMEDI sample format and the raw hardware sample format.
554 *
555 * %CMDF_ROUND_NEAREST - requests timing periods to be rounded to nearest
556 * supported values.
557 *
558 * %CMDF_ROUND_DOWN - requests timing periods to be rounded down to supported
559 * values (frequencies rounded up).
560 *
561 * %CMDF_ROUND_UP - requests timing periods to be rounded up to supported
562 * values (frequencies rounded down).
563 *
564 * Trigger source values for @start_src, @scan_begin_src, @convert_src,
565 * @scan_end_src, and @stop_src...
566 *
567 * %TRIG_ANY - "all ones" value used to test which trigger sources are
568 * supported.
569 *
570 * %TRIG_INVALID - "all zeroes" value used to indicate that all requested
571 * trigger sources are invalid.
572 *
573 * %TRIG_NONE - never trigger (often used as a @stop_src value).
574 *
575 * %TRIG_NOW - trigger after '_arg' nanoseconds.
576 *
577 * %TRIG_FOLLOW - trigger follows another event.
578 *
579 * %TRIG_TIMER - trigger every '_arg' nanoseconds.
580 *
581 * %TRIG_COUNT - trigger when count '_arg' is reached.
582 *
583 * %TRIG_EXT - trigger on external signal specified by '_arg'.
584 *
585 * %TRIG_INT - trigger on internal, software trigger specified by '_arg'.
586 *
587 * %TRIG_OTHER - trigger on other, driver-defined signal specified by '_arg'.
588 */
589 struct comedi_cmd {
590 unsigned int subdev;
591 unsigned int flags;
592
593 unsigned int start_src;
594 unsigned int start_arg;
595
596 unsigned int scan_begin_src;
597 unsigned int scan_begin_arg;
598
599 unsigned int convert_src;
600 unsigned int convert_arg;
601
602 unsigned int scan_end_src;
603 unsigned int scan_end_arg;
604
605 unsigned int stop_src;
606 unsigned int stop_arg;
607
608 unsigned int *chanlist;
609 unsigned int chanlist_len;
610
611 short __user *data;
612 unsigned int data_len;
613 };
614
615 /**
616 * struct comedi_chaninfo - used to retrieve per-channel information
617 * @subdev: Subdevice index.
618 * @maxdata_list: Optional pointer to per-channel maximum data values.
619 * @flaglist: Optional pointer to per-channel flags.
620 * @rangelist: Optional pointer to per-channel range types.
621 * @unused: Reserved for future use.
622 *
623 * This is used with the %COMEDI_CHANINFO ioctl to get per-channel information
624 * for the subdevice. Use of this requires knowledge of the number of channels
625 * and subdevice flags obtained using the %COMEDI_SUBDINFO ioctl.
626 *
627 * The @maxdata_list member must be %NULL unless the %SDF_MAXDATA subdevice
628 * flag is set. The @flaglist member must be %NULL unless the %SDF_FLAGS
629 * subdevice flag is set. The @rangelist member must be %NULL unless the
630 * %SDF_RANGETYPE subdevice flag is set. Otherwise, the arrays they point to
631 * must be at least as long as the number of channels.
632 */
633 struct comedi_chaninfo {
634 unsigned int subdev;
635 unsigned int __user *maxdata_list;
636 unsigned int __user *flaglist;
637 unsigned int __user *rangelist;
638 unsigned int unused[4];
639 };
640
641 /**
642 * struct comedi_rangeinfo - used to retrieve the range table for a channel
643 * @range_type: Encodes subdevice index (bits 27:24), channel index
644 * (bits 23:16) and range table length (bits 15:0).
645 * @range_ptr: Pointer to array of @struct comedi_krange to be filled
646 * in with the range table for the channel or subdevice.
647 *
648 * This is used with the %COMEDI_RANGEINFO ioctl to retrieve the range table
649 * for a specific channel (if the subdevice has the %SDF_RANGETYPE flag set to
650 * indicate that the range table depends on the channel), or for the subdevice
651 * as a whole (if the %SDF_RANGETYPE flag is clear, indicating the range table
652 * is shared by all channels).
653 *
654 * The @range_type value is an input to the ioctl and comes from a previous
655 * use of the %COMEDI_SUBDINFO ioctl (if the %SDF_RANGETYPE flag is clear),
656 * or the %COMEDI_CHANINFO ioctl (if the %SDF_RANGETYPE flag is set).
657 */
658 struct comedi_rangeinfo {
659 unsigned int range_type;
660 void __user *range_ptr;
661 };
662
663 /**
664 * struct comedi_krange - describes a range in a range table
665 * @min: Minimum value in millionths (1e-6) of a unit.
666 * @max: Maximum value in millionths (1e-6) of a unit.
667 * @flags: Indicates the units (in bits 7:0) OR'ed with optional flags.
668 *
669 * A range table is associated with a single channel, or with all channels in a
670 * subdevice, and a list of one or more ranges. A %struct comedi_krange
671 * describes the physical range of units for one of those ranges. Sample
672 * values in COMEDI are unsigned from %0 up to some 'maxdata' value. The
673 * mapping from sample values to physical units is assumed to be nomimally
674 * linear (for the purpose of describing the range), with sample value %0
675 * mapping to @min, and the 'maxdata' sample value mapping to @max.
676 *
677 * The currently defined units are %UNIT_volt (%0), %UNIT_mA (%1), and
678 * %UNIT_none (%2). The @min and @max values are the physical range multiplied
679 * by 1e6, so a @max value of %1000000 (with %UNIT_volt) represents a maximal
680 * value of 1 volt.
681 *
682 * The only defined flag value is %RF_EXTERNAL (%0x100), indicating that the
683 * range needs to be multiplied by an external reference.
684 */
685 struct comedi_krange {
686 int min;
687 int max;
688 unsigned int flags;
689 };
690
691 /**
692 * struct comedi_subdinfo - used to retrieve information about a subdevice
693 * @type: Type of subdevice from &enum comedi_subdevice_type.
694 * @n_chan: Number of channels the subdevice supports.
695 * @subd_flags: A mixture of static and dynamic flags describing
696 * aspects of the subdevice and its current state.
697 * @timer_type: Timer type. Always set to %5 ("nanosecond timer").
698 * @len_chanlist: Maximum length of a channel list if the subdevice
699 * supports asynchronous acquisition commands.
700 * @maxdata: Maximum sample value for all channels if the
701 * %SDF_MAXDATA subdevice flag is clear.
702 * @flags: Channel flags for all channels if the %SDF_FLAGS
703 * subdevice flag is clear.
704 * @range_type: The range type for all channels if the %SDF_RANGETYPE
705 * subdevice flag is clear. Encodes the subdevice index
706 * (bits 27:24), a dummy channel index %0 (bits 23:16),
707 * and the range table length (bits 15:0).
708 * @settling_time_0: Not used.
709 * @insn_bits_support: Set to %COMEDI_SUPPORTED if the subdevice supports the
710 * %INSN_BITS instruction, or to %COMEDI_UNSUPPORTED if it
711 * does not.
712 * @unused: Reserved for future use.
713 *
714 * This is used with the %COMEDI_SUBDINFO ioctl which copies an array of
715 * &struct comedi_subdinfo back to user space, with one element per subdevice.
716 * Use of this requires knowledge of the number of subdevices obtained from
717 * the %COMEDI_DEVINFO ioctl.
718 *
719 * These are the @subd_flags values that may be ORed together...
720 *
721 * %SDF_BUSY - the subdevice is busy processing an asynchronous command or a
722 * synchronous instruction.
723 *
724 * %SDF_BUSY_OWNER - the subdevice is busy processing an asynchronous
725 * acquisition command started on the current file object (the file object
726 * issuing the %COMEDI_SUBDINFO ioctl).
727 *
728 * %SDF_LOCKED - the subdevice is locked by a %COMEDI_LOCK ioctl.
729 *
730 * %SDF_LOCK_OWNER - the subdevice is locked by a %COMEDI_LOCK ioctl from the
731 * current file object.
732 *
733 * %SDF_MAXDATA - maximum sample values are channel-specific.
734 *
735 * %SDF_FLAGS - channel flags are channel-specific.
736 *
737 * %SDF_RANGETYPE - range types are channel-specific.
738 *
739 * %SDF_PWM_COUNTER - PWM can switch off automatically.
740 *
741 * %SDF_PWM_HBRIDGE - or PWM is signed (H-bridge).
742 *
743 * %SDF_CMD - the subdevice supports asynchronous commands.
744 *
745 * %SDF_SOFT_CALIBRATED - the subdevice uses software calibration.
746 *
747 * %SDF_CMD_WRITE - the subdevice supports asynchronous commands in the output
748 * ("write") direction.
749 *
750 * %SDF_CMD_READ - the subdevice supports asynchronous commands in the input
751 * ("read") direction.
752 *
753 * %SDF_READABLE - the subdevice is readable (e.g. analog input).
754 *
755 * %SDF_WRITABLE (aliased as %SDF_WRITEABLE) - the subdevice is writable (e.g.
756 * analog output).
757 *
758 * %SDF_INTERNAL - the subdevice has no externally visible lines.
759 *
760 * %SDF_GROUND - the subdevice can use ground as an analog reference.
761 *
762 * %SDF_COMMON - the subdevice can use a common analog reference.
763 *
764 * %SDF_DIFF - the subdevice can use differential inputs (or outputs).
765 *
766 * %SDF_OTHER - the subdevice can use some other analog reference.
767 *
768 * %SDF_DITHER - the subdevice can do dithering.
769 *
770 * %SDF_DEGLITCH - the subdevice can do deglitching.
771 *
772 * %SDF_MMAP - this is never set.
773 *
774 * %SDF_RUNNING - an asynchronous command is still running.
775 *
776 * %SDF_LSAMPL - the subdevice uses "long" (32-bit) samples (for asynchronous
777 * command data).
778 *
779 * %SDF_PACKED - the subdevice packs several DIO samples into a single sample
780 * (for asynchronous command data).
781 *
782 * No "channel flags" (@flags) values are currently defined.
783 */
784 struct comedi_subdinfo {
785 unsigned int type;
786 unsigned int n_chan;
787 unsigned int subd_flags;
788 unsigned int timer_type;
789 unsigned int len_chanlist;
790 unsigned int maxdata;
791 unsigned int flags;
792 unsigned int range_type;
793 unsigned int settling_time_0;
794 unsigned int insn_bits_support;
795 unsigned int unused[8];
796 };
797
798 /**
799 * struct comedi_devinfo - used to retrieve information about a COMEDI device
800 * @version_code: COMEDI version code.
801 * @n_subdevs: Number of subdevices the device has.
802 * @driver_name: Null-terminated COMEDI driver name.
803 * @board_name: Null-terminated COMEDI board name.
804 * @read_subdevice: Index of the current "read" subdevice (%-1 if none).
805 * @write_subdevice: Index of the current "write" subdevice (%-1 if none).
806 * @unused: Reserved for future use.
807 *
808 * This is used with the %COMEDI_DEVINFO ioctl to get basic information about
809 * the device.
810 */
811 struct comedi_devinfo {
812 unsigned int version_code;
813 unsigned int n_subdevs;
814 char driver_name[COMEDI_NAMELEN];
815 char board_name[COMEDI_NAMELEN];
816 int read_subdevice;
817 int write_subdevice;
818 int unused[30];
819 };
820
821 /**
822 * struct comedi_devconfig - used to configure a legacy COMEDI device
823 * @board_name: Null-terminated string specifying the type of board
824 * to configure.
825 * @options: An array of integer configuration options.
826 *
827 * This is used with the %COMEDI_DEVCONFIG ioctl to configure a "legacy" COMEDI
828 * device, such as an ISA card. Not all COMEDI drivers support this. Those
829 * that do either expect the specified board name to match one of a list of
830 * names registered with the COMEDI core, or expect the specified board name
831 * to match the COMEDI driver name itself. The configuration options are
832 * handled in a driver-specific manner.
833 */
834 struct comedi_devconfig {
835 char board_name[COMEDI_NAMELEN];
836 int options[COMEDI_NDEVCONFOPTS];
837 };
838
839 /**
840 * struct comedi_bufconfig - used to set or get buffer size for a subdevice
841 * @subdevice: Subdevice index.
842 * @flags: Not used.
843 * @maximum_size: Maximum allowed buffer size.
844 * @size: Buffer size.
845 * @unused: Reserved for future use.
846 *
847 * This is used with the %COMEDI_BUFCONFIG ioctl to get or configure the
848 * maximum buffer size and current buffer size for a COMEDI subdevice that
849 * supports asynchronous commands. If the subdevice does not support
850 * asynchronous commands, @maximum_size and @size are ignored and set to 0.
851 *
852 * On ioctl input, non-zero values of @maximum_size and @size specify a
853 * new maximum size and new current size (in bytes), respectively. These
854 * will by rounded up to a multiple of %PAGE_SIZE. Specifying a new maximum
855 * size requires admin capabilities.
856 *
857 * On ioctl output, @maximum_size and @size and set to the current maximum
858 * buffer size and current buffer size, respectively.
859 */
860 struct comedi_bufconfig {
861 unsigned int subdevice;
862 unsigned int flags;
863
864 unsigned int maximum_size;
865 unsigned int size;
866
867 unsigned int unused[4];
868 };
869
870 /**
871 * struct comedi_bufinfo - used to manipulate buffer position for a subdevice
872 * @subdevice: Subdevice index.
873 * @bytes_read: Specify amount to advance read position for an
874 * asynchronous command in the input ("read") direction.
875 * @buf_write_ptr: Current write position (index) within the buffer.
876 * @buf_read_ptr: Current read position (index) within the buffer.
877 * @buf_write_count: Total amount written, modulo 2^32.
878 * @buf_read_count: Total amount read, modulo 2^32.
879 * @bytes_written: Specify amount to advance write position for an
880 * asynchronous command in the output ("write") direction.
881 * @unused: Reserved for future use.
882 *
883 * This is used with the %COMEDI_BUFINFO ioctl to optionally advance the
884 * current read or write position in an asynchronous acquisition data buffer,
885 * and to get the current read and write positions in the buffer.
886 */
887 struct comedi_bufinfo {
888 unsigned int subdevice;
889 unsigned int bytes_read;
890
891 unsigned int buf_write_ptr;
892 unsigned int buf_read_ptr;
893 unsigned int buf_write_count;
894 unsigned int buf_read_count;
895
896 unsigned int bytes_written;
897
898 unsigned int unused[4];
899 };
900
901 /* range stuff */
902
903 #define __RANGE(a, b) ((((a) & 0xffff) << 16) | ((b) & 0xffff))
904
905 #define RANGE_OFFSET(a) (((a) >> 16) & 0xffff)
906 #define RANGE_LENGTH(b) ((b) & 0xffff)
907
908 #define RF_UNIT(flags) ((flags) & 0xff)
909 #define RF_EXTERNAL 0x100
910
911 #define UNIT_volt 0
912 #define UNIT_mA 1
913 #define UNIT_none 2
914
915 #define COMEDI_MIN_SPEED 0xffffffffu
916
917 /**********************************************************/
918 /* everything after this line is ALPHA */
919 /**********************************************************/
920
921 /*
922 * 8254 specific configuration.
923 *
924 * It supports two config commands:
925 *
926 * 0 ID: INSN_CONFIG_SET_COUNTER_MODE
927 * 1 8254 Mode
928 * I8254_MODE0, I8254_MODE1, ..., I8254_MODE5
929 * OR'ed with:
930 * I8254_BCD, I8254_BINARY
931 *
932 * 0 ID: INSN_CONFIG_8254_READ_STATUS
933 * 1 <-- Status byte returned here.
934 * B7 = Output
935 * B6 = NULL Count
936 * B5 - B0 Current mode.
937 */
938
939 enum i8254_mode {
940 I8254_MODE0 = (0 << 1), /* Interrupt on terminal count */
941 I8254_MODE1 = (1 << 1), /* Hardware retriggerable one-shot */
942 I8254_MODE2 = (2 << 1), /* Rate generator */
943 I8254_MODE3 = (3 << 1), /* Square wave mode */
944 I8254_MODE4 = (4 << 1), /* Software triggered strobe */
945 /* Hardware triggered strobe (retriggerable) */
946 I8254_MODE5 = (5 << 1),
947 /* Use binary-coded decimal instead of binary (pretty useless) */
948 I8254_BCD = 1,
949 I8254_BINARY = 0
950 };
951
952 /* *** BEGIN GLOBALLY-NAMED NI TERMINALS/SIGNALS *** */
953
954 /*
955 * Common National Instruments Terminal/Signal names.
956 * Some of these have no NI_ prefix as they are useful for non-NI hardware, such
957 * as those that utilize the PXI/RTSI trigger lines.
958 *
959 * NOTE ABOUT THE CHOICE OF NAMES HERE AND THE CAMELSCRIPT:
960 * The choice to use CamelScript and the exact names below is for
961 * maintainability, clarity, similarity to manufacturer's documentation,
962 * _and_ a mitigation for confusion that has plagued the use of these drivers
963 * for years!
964 *
965 * More detail:
966 * There have been significant confusions over the past many years for users
967 * when trying to understand how to connect to/from signals and terminals on
968 * NI hardware using comedi. The major reason for this is that the actual
969 * register values were exposed and required to be used by users. Several
970 * major reasons exist why this caused major confusion for users:
971 * 1) The register values are _NOT_ in user documentation, but rather in
972 * arcane locations, such as a few register programming manuals that are
973 * increasingly hard to find and the NI MHDDK (comments in example code).
974 * There is no one place to find the various valid values of the registers.
975 * 2) The register values are _NOT_ completely consistent. There is no way to
976 * gain any sense of intuition of which values, or even enums one should use
977 * for various registers. There was some attempt in prior use of comedi to
978 * name enums such that a user might know which enums should be used for
979 * varying purposes, but the end-user had to gain a knowledge of register
980 * values to correctly wield this approach.
981 * 3) The names for signals and registers found in the various register level
982 * programming manuals and vendor-provided documentation are _not_ even
983 * close to the same names that are in the end-user documentation.
984 *
985 * Similar, albeit less, confusion plagued NI's previous version of their own
986 * drivers. Earlier than 2003, NI greatly simplified the situation for users
987 * by releasing a new API that abstracted the names of signals/terminals to a
988 * common and intuitive set of names.
989 *
990 * The names below mirror the names chosen and well documented by NI. These
991 * names are exposed to the user via the comedilib user library. By keeping
992 * the names below, in spite of the use of CamelScript, maintenance will be
993 * greatly eased and confusion for users _and_ comedi developers will be
994 * greatly reduced.
995 */
996
997 /*
998 * Base of abstracted NI names.
999 * The first 16 bits of *_arg are reserved for channel selection.
1000 * Since we only actually need the first 4 or 5 bits for all register values on
1001 * NI select registers anyways, we'll identify all values >= (1<<15) as being an
1002 * abstracted NI signal/terminal name.
1003 * These values are also used/returned by INSN_DEVICE_CONFIG_TEST_ROUTE,
1004 * INSN_DEVICE_CONFIG_CONNECT_ROUTE, INSN_DEVICE_CONFIG_DISCONNECT_ROUTE,
1005 * and INSN_DEVICE_CONFIG_GET_ROUTES.
1006 */
1007 #define NI_NAMES_BASE 0x8000u
1008
1009 #define _TERM_N(base, n, x) ((base) + ((x) & ((n) - 1)))
1010
1011 /*
1012 * not necessarily all allowed 64 PFIs are valid--certainly not for all devices
1013 */
1014 #define NI_PFI(x) _TERM_N(NI_NAMES_BASE, 64, x)
1015 /* 8 trigger lines by standard, Some devices cannot talk to all eight. */
1016 #define TRIGGER_LINE(x) _TERM_N(NI_PFI(-1) + 1, 8, x)
1017 /* 4 RTSI shared MUXes to route signals to/from TRIGGER_LINES on NI hardware */
1018 #define NI_RTSI_BRD(x) _TERM_N(TRIGGER_LINE(-1) + 1, 4, x)
1019
1020 /* *** Counter/timer names : 8 counters max *** */
1021 #define NI_MAX_COUNTERS 8
1022 #define NI_COUNTER_NAMES_BASE (NI_RTSI_BRD(-1) + 1)
1023 #define NI_CtrSource(x) _TERM_N(NI_COUNTER_NAMES_BASE, NI_MAX_COUNTERS, x)
1024 /* Gate, Aux, A,B,Z are all treated, at times as gates */
1025 #define NI_GATES_NAMES_BASE (NI_CtrSource(-1) + 1)
1026 #define NI_CtrGate(x) _TERM_N(NI_GATES_NAMES_BASE, NI_MAX_COUNTERS, x)
1027 #define NI_CtrAux(x) _TERM_N(NI_CtrGate(-1) + 1, NI_MAX_COUNTERS, x)
1028 #define NI_CtrA(x) _TERM_N(NI_CtrAux(-1) + 1, NI_MAX_COUNTERS, x)
1029 #define NI_CtrB(x) _TERM_N(NI_CtrA(-1) + 1, NI_MAX_COUNTERS, x)
1030 #define NI_CtrZ(x) _TERM_N(NI_CtrB(-1) + 1, NI_MAX_COUNTERS, x)
1031 #define NI_GATES_NAMES_MAX NI_CtrZ(-1)
1032 #define NI_CtrArmStartTrigger(x) _TERM_N(NI_CtrZ(-1) + 1, NI_MAX_COUNTERS, x)
1033 #define NI_CtrInternalOutput(x) \
1034 _TERM_N(NI_CtrArmStartTrigger(-1) + 1, NI_MAX_COUNTERS, x)
1035 /** external pin(s) labeled conveniently as Ctr<i>Out. */
1036 #define NI_CtrOut(x) _TERM_N(NI_CtrInternalOutput(-1) + 1, NI_MAX_COUNTERS, x)
1037 /** For Buffered sampling of ctr -- x series capability. */
1038 #define NI_CtrSampleClock(x) _TERM_N(NI_CtrOut(-1) + 1, NI_MAX_COUNTERS, x)
1039 #define NI_COUNTER_NAMES_MAX NI_CtrSampleClock(-1)
1040
1041 enum ni_common_signal_names {
1042 /* PXI_Star: this is a non-NI-specific signal */
1043 PXI_Star = NI_COUNTER_NAMES_MAX + 1,
1044 PXI_Clk10,
1045 PXIe_Clk100,
1046 NI_AI_SampleClock,
1047 NI_AI_SampleClockTimebase,
1048 NI_AI_StartTrigger,
1049 NI_AI_ReferenceTrigger,
1050 NI_AI_ConvertClock,
1051 NI_AI_ConvertClockTimebase,
1052 NI_AI_PauseTrigger,
1053 NI_AI_HoldCompleteEvent,
1054 NI_AI_HoldComplete,
1055 NI_AI_ExternalMUXClock,
1056 NI_AI_STOP, /* pulse signal that occurs when a update is finished(?) */
1057 NI_AO_SampleClock,
1058 NI_AO_SampleClockTimebase,
1059 NI_AO_StartTrigger,
1060 NI_AO_PauseTrigger,
1061 NI_DI_SampleClock,
1062 NI_DI_SampleClockTimebase,
1063 NI_DI_StartTrigger,
1064 NI_DI_ReferenceTrigger,
1065 NI_DI_PauseTrigger,
1066 NI_DI_InputBufferFull,
1067 NI_DI_ReadyForStartEvent,
1068 NI_DI_ReadyForTransferEventBurst,
1069 NI_DI_ReadyForTransferEventPipelined,
1070 NI_DO_SampleClock,
1071 NI_DO_SampleClockTimebase,
1072 NI_DO_StartTrigger,
1073 NI_DO_PauseTrigger,
1074 NI_DO_OutputBufferFull,
1075 NI_DO_DataActiveEvent,
1076 NI_DO_ReadyForStartEvent,
1077 NI_DO_ReadyForTransferEvent,
1078 NI_MasterTimebase,
1079 NI_20MHzTimebase,
1080 NI_80MHzTimebase,
1081 NI_100MHzTimebase,
1082 NI_200MHzTimebase,
1083 NI_100kHzTimebase,
1084 NI_10MHzRefClock,
1085 NI_FrequencyOutput,
1086 NI_ChangeDetectionEvent,
1087 NI_AnalogComparisonEvent,
1088 NI_WatchdogExpiredEvent,
1089 NI_WatchdogExpirationTrigger,
1090 NI_SCXI_Trig1,
1091 NI_LogicLow,
1092 NI_LogicHigh,
1093 NI_ExternalStrobe,
1094 NI_PFI_DO,
1095 NI_CaseGround,
1096 /* special internal signal used as variable source for RTSI bus: */
1097 NI_RGOUT0,
1098
1099 /* just a name to make the next more convenient, regardless of above */
1100 _NI_NAMES_MAX_PLUS_1,
1101 NI_NUM_NAMES = _NI_NAMES_MAX_PLUS_1 - NI_NAMES_BASE,
1102 };
1103
1104 /* *** END GLOBALLY-NAMED NI TERMINALS/SIGNALS *** */
1105
1106 #define NI_USUAL_PFI_SELECT(x) (((x) < 10) ? (0x1 + (x)) : (0xb + (x)))
1107 #define NI_USUAL_RTSI_SELECT(x) (((x) < 7) ? (0xb + (x)) : 0x1b)
1108
1109 /*
1110 * mode bits for NI general-purpose counters, set with
1111 * INSN_CONFIG_SET_COUNTER_MODE
1112 */
1113 #define NI_GPCT_COUNTING_MODE_SHIFT 16
1114 #define NI_GPCT_INDEX_PHASE_BITSHIFT 20
1115 #define NI_GPCT_COUNTING_DIRECTION_SHIFT 24
1116 enum ni_gpct_mode_bits {
1117 NI_GPCT_GATE_ON_BOTH_EDGES_BIT = 0x4,
1118 NI_GPCT_EDGE_GATE_MODE_MASK = 0x18,
1119 NI_GPCT_EDGE_GATE_STARTS_STOPS_BITS = 0x0,
1120 NI_GPCT_EDGE_GATE_STOPS_STARTS_BITS = 0x8,
1121 NI_GPCT_EDGE_GATE_STARTS_BITS = 0x10,
1122 NI_GPCT_EDGE_GATE_NO_STARTS_NO_STOPS_BITS = 0x18,
1123 NI_GPCT_STOP_MODE_MASK = 0x60,
1124 NI_GPCT_STOP_ON_GATE_BITS = 0x00,
1125 NI_GPCT_STOP_ON_GATE_OR_TC_BITS = 0x20,
1126 NI_GPCT_STOP_ON_GATE_OR_SECOND_TC_BITS = 0x40,
1127 NI_GPCT_LOAD_B_SELECT_BIT = 0x80,
1128 NI_GPCT_OUTPUT_MODE_MASK = 0x300,
1129 NI_GPCT_OUTPUT_TC_PULSE_BITS = 0x100,
1130 NI_GPCT_OUTPUT_TC_TOGGLE_BITS = 0x200,
1131 NI_GPCT_OUTPUT_TC_OR_GATE_TOGGLE_BITS = 0x300,
1132 NI_GPCT_HARDWARE_DISARM_MASK = 0xc00,
1133 NI_GPCT_NO_HARDWARE_DISARM_BITS = 0x000,
1134 NI_GPCT_DISARM_AT_TC_BITS = 0x400,
1135 NI_GPCT_DISARM_AT_GATE_BITS = 0x800,
1136 NI_GPCT_DISARM_AT_TC_OR_GATE_BITS = 0xc00,
1137 NI_GPCT_LOADING_ON_TC_BIT = 0x1000,
1138 NI_GPCT_LOADING_ON_GATE_BIT = 0x4000,
1139 NI_GPCT_COUNTING_MODE_MASK = 0x7 << NI_GPCT_COUNTING_MODE_SHIFT,
1140 NI_GPCT_COUNTING_MODE_NORMAL_BITS =
1141 0x0 << NI_GPCT_COUNTING_MODE_SHIFT,
1142 NI_GPCT_COUNTING_MODE_QUADRATURE_X1_BITS =
1143 0x1 << NI_GPCT_COUNTING_MODE_SHIFT,
1144 NI_GPCT_COUNTING_MODE_QUADRATURE_X2_BITS =
1145 0x2 << NI_GPCT_COUNTING_MODE_SHIFT,
1146 NI_GPCT_COUNTING_MODE_QUADRATURE_X4_BITS =
1147 0x3 << NI_GPCT_COUNTING_MODE_SHIFT,
1148 NI_GPCT_COUNTING_MODE_TWO_PULSE_BITS =
1149 0x4 << NI_GPCT_COUNTING_MODE_SHIFT,
1150 NI_GPCT_COUNTING_MODE_SYNC_SOURCE_BITS =
1151 0x6 << NI_GPCT_COUNTING_MODE_SHIFT,
1152 NI_GPCT_INDEX_PHASE_MASK = 0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
1153 NI_GPCT_INDEX_PHASE_LOW_A_LOW_B_BITS =
1154 0x0 << NI_GPCT_INDEX_PHASE_BITSHIFT,
1155 NI_GPCT_INDEX_PHASE_LOW_A_HIGH_B_BITS =
1156 0x1 << NI_GPCT_INDEX_PHASE_BITSHIFT,
1157 NI_GPCT_INDEX_PHASE_HIGH_A_LOW_B_BITS =
1158 0x2 << NI_GPCT_INDEX_PHASE_BITSHIFT,
1159 NI_GPCT_INDEX_PHASE_HIGH_A_HIGH_B_BITS =
1160 0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
1161 NI_GPCT_INDEX_ENABLE_BIT = 0x400000,
1162 NI_GPCT_COUNTING_DIRECTION_MASK =
1163 0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
1164 NI_GPCT_COUNTING_DIRECTION_DOWN_BITS =
1165 0x00 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
1166 NI_GPCT_COUNTING_DIRECTION_UP_BITS =
1167 0x1 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
1168 NI_GPCT_COUNTING_DIRECTION_HW_UP_DOWN_BITS =
1169 0x2 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
1170 NI_GPCT_COUNTING_DIRECTION_HW_GATE_BITS =
1171 0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
1172 NI_GPCT_RELOAD_SOURCE_MASK = 0xc000000,
1173 NI_GPCT_RELOAD_SOURCE_FIXED_BITS = 0x0,
1174 NI_GPCT_RELOAD_SOURCE_SWITCHING_BITS = 0x4000000,
1175 NI_GPCT_RELOAD_SOURCE_GATE_SELECT_BITS = 0x8000000,
1176 NI_GPCT_OR_GATE_BIT = 0x10000000,
1177 NI_GPCT_INVERT_OUTPUT_BIT = 0x20000000
1178 };
1179
1180 /*
1181 * Bits for setting a clock source with
1182 * INSN_CONFIG_SET_CLOCK_SRC when using NI general-purpose counters.
1183 */
1184 enum ni_gpct_clock_source_bits {
1185 NI_GPCT_CLOCK_SRC_SELECT_MASK = 0x3f,
1186 NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS = 0x0,
1187 NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS = 0x1,
1188 NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS = 0x2,
1189 NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS = 0x3,
1190 NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS = 0x4,
1191 NI_GPCT_NEXT_TC_CLOCK_SRC_BITS = 0x5,
1192 /* NI 660x-specific */
1193 NI_GPCT_SOURCE_PIN_i_CLOCK_SRC_BITS = 0x6,
1194 NI_GPCT_PXI10_CLOCK_SRC_BITS = 0x7,
1195 NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS = 0x8,
1196 NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS = 0x9,
1197 NI_GPCT_PRESCALE_MODE_CLOCK_SRC_MASK = 0x30000000,
1198 NI_GPCT_NO_PRESCALE_CLOCK_SRC_BITS = 0x0,
1199 /* divide source by 2 */
1200 NI_GPCT_PRESCALE_X2_CLOCK_SRC_BITS = 0x10000000,
1201 /* divide source by 8 */
1202 NI_GPCT_PRESCALE_X8_CLOCK_SRC_BITS = 0x20000000,
1203 NI_GPCT_INVERT_CLOCK_SRC_BIT = 0x80000000
1204 };
1205
1206 /* NI 660x-specific */
1207 #define NI_GPCT_SOURCE_PIN_CLOCK_SRC_BITS(x) (0x10 + (x))
1208
1209 #define NI_GPCT_RTSI_CLOCK_SRC_BITS(x) (0x18 + (x))
1210
1211 /* no pfi on NI 660x */
1212 #define NI_GPCT_PFI_CLOCK_SRC_BITS(x) (0x20 + (x))
1213
1214 /*
1215 * Possibilities for setting a gate source with
1216 * INSN_CONFIG_SET_GATE_SRC when using NI general-purpose counters.
1217 * May be bitwise-or'd with CR_EDGE or CR_INVERT.
1218 */
1219 enum ni_gpct_gate_select {
1220 /* m-series gates */
1221 NI_GPCT_TIMESTAMP_MUX_GATE_SELECT = 0x0,
1222 NI_GPCT_AI_START2_GATE_SELECT = 0x12,
1223 NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT = 0x13,
1224 NI_GPCT_NEXT_OUT_GATE_SELECT = 0x14,
1225 NI_GPCT_AI_START1_GATE_SELECT = 0x1c,
1226 NI_GPCT_NEXT_SOURCE_GATE_SELECT = 0x1d,
1227 NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT = 0x1e,
1228 NI_GPCT_LOGIC_LOW_GATE_SELECT = 0x1f,
1229 /* more gates for 660x */
1230 NI_GPCT_SOURCE_PIN_i_GATE_SELECT = 0x100,
1231 NI_GPCT_GATE_PIN_i_GATE_SELECT = 0x101,
1232 /* more gates for 660x "second gate" */
1233 NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT = 0x201,
1234 NI_GPCT_SELECTED_GATE_GATE_SELECT = 0x21e,
1235 /*
1236 * m-series "second gate" sources are unknown,
1237 * we should add them here with an offset of 0x300 when
1238 * known.
1239 */
1240 NI_GPCT_DISABLED_GATE_SELECT = 0x8000,
1241 };
1242
1243 #define NI_GPCT_GATE_PIN_GATE_SELECT(x) (0x102 + (x))
1244 #define NI_GPCT_RTSI_GATE_SELECT(x) NI_USUAL_RTSI_SELECT(x)
1245 #define NI_GPCT_PFI_GATE_SELECT(x) NI_USUAL_PFI_SELECT(x)
1246 #define NI_GPCT_UP_DOWN_PIN_GATE_SELECT(x) (0x202 + (x))
1247
1248 /*
1249 * Possibilities for setting a source with
1250 * INSN_CONFIG_SET_OTHER_SRC when using NI general-purpose counters.
1251 */
1252 enum ni_gpct_other_index {
1253 NI_GPCT_SOURCE_ENCODER_A,
1254 NI_GPCT_SOURCE_ENCODER_B,
1255 NI_GPCT_SOURCE_ENCODER_Z
1256 };
1257
1258 enum ni_gpct_other_select {
1259 /* m-series gates */
1260 /* Still unknown, probably only need NI_GPCT_PFI_OTHER_SELECT */
1261 NI_GPCT_DISABLED_OTHER_SELECT = 0x8000,
1262 };
1263
1264 #define NI_GPCT_PFI_OTHER_SELECT(x) NI_USUAL_PFI_SELECT(x)
1265
1266 /*
1267 * start sources for ni general-purpose counters for use with
1268 * INSN_CONFIG_ARM
1269 */
1270 enum ni_gpct_arm_source {
1271 NI_GPCT_ARM_IMMEDIATE = 0x0,
1272 /*
1273 * Start both the counter and the adjacent paired counter simultaneously
1274 */
1275 NI_GPCT_ARM_PAIRED_IMMEDIATE = 0x1,
1276 /*
1277 * If the NI_GPCT_HW_ARM bit is set, we will pass the least significant
1278 * bits (3 bits for 660x or 5 bits for m-series) through to the
1279 * hardware. To select a hardware trigger, pass the appropriate select
1280 * bit, e.g.,
1281 * NI_GPCT_HW_ARM | NI_GPCT_AI_START1_GATE_SELECT or
1282 * NI_GPCT_HW_ARM | NI_GPCT_PFI_GATE_SELECT(pfi_number)
1283 */
1284 NI_GPCT_HW_ARM = 0x1000,
1285 NI_GPCT_ARM_UNKNOWN = NI_GPCT_HW_ARM, /* for backward compatibility */
1286 };
1287
1288 /* digital filtering options for ni 660x for use with INSN_CONFIG_FILTER. */
1289 enum ni_gpct_filter_select {
1290 NI_GPCT_FILTER_OFF = 0x0,
1291 NI_GPCT_FILTER_TIMEBASE_3_SYNC = 0x1,
1292 NI_GPCT_FILTER_100x_TIMEBASE_1 = 0x2,
1293 NI_GPCT_FILTER_20x_TIMEBASE_1 = 0x3,
1294 NI_GPCT_FILTER_10x_TIMEBASE_1 = 0x4,
1295 NI_GPCT_FILTER_2x_TIMEBASE_1 = 0x5,
1296 NI_GPCT_FILTER_2x_TIMEBASE_3 = 0x6
1297 };
1298
1299 /*
1300 * PFI digital filtering options for ni m-series for use with
1301 * INSN_CONFIG_FILTER.
1302 */
1303 enum ni_pfi_filter_select {
1304 NI_PFI_FILTER_OFF = 0x0,
1305 NI_PFI_FILTER_125ns = 0x1,
1306 NI_PFI_FILTER_6425ns = 0x2,
1307 NI_PFI_FILTER_2550us = 0x3
1308 };
1309
1310 /* master clock sources for ni mio boards and INSN_CONFIG_SET_CLOCK_SRC */
1311 enum ni_mio_clock_source {
1312 NI_MIO_INTERNAL_CLOCK = 0,
1313 /*
1314 * Doesn't work for m-series, use NI_MIO_PLL_RTSI_CLOCK()
1315 * the NI_MIO_PLL_* sources are m-series only
1316 */
1317 NI_MIO_RTSI_CLOCK = 1,
1318 NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK = 2,
1319 NI_MIO_PLL_PXI10_CLOCK = 3,
1320 NI_MIO_PLL_RTSI0_CLOCK = 4
1321 };
1322
1323 #define NI_MIO_PLL_RTSI_CLOCK(x) (NI_MIO_PLL_RTSI0_CLOCK + (x))
1324
1325 /*
1326 * Signals which can be routed to an NI RTSI pin with INSN_CONFIG_SET_ROUTING.
1327 * The numbers assigned are not arbitrary, they correspond to the bits required
1328 * to program the board.
1329 */
1330 enum ni_rtsi_routing {
1331 NI_RTSI_OUTPUT_ADR_START1 = 0,
1332 NI_RTSI_OUTPUT_ADR_START2 = 1,
1333 NI_RTSI_OUTPUT_SCLKG = 2,
1334 NI_RTSI_OUTPUT_DACUPDN = 3,
1335 NI_RTSI_OUTPUT_DA_START1 = 4,
1336 NI_RTSI_OUTPUT_G_SRC0 = 5,
1337 NI_RTSI_OUTPUT_G_GATE0 = 6,
1338 NI_RTSI_OUTPUT_RGOUT0 = 7,
1339 NI_RTSI_OUTPUT_RTSI_BRD_0 = 8,
1340 /* Pre-m-series always have RTSI clock on line 7 */
1341 NI_RTSI_OUTPUT_RTSI_OSC = 12
1342 };
1343
1344 #define NI_RTSI_OUTPUT_RTSI_BRD(x) (NI_RTSI_OUTPUT_RTSI_BRD_0 + (x))
1345
1346 /*
1347 * Signals which can be routed to an NI PFI pin on an m-series board with
1348 * INSN_CONFIG_SET_ROUTING. These numbers are also returned by
1349 * INSN_CONFIG_GET_ROUTING on pre-m-series boards, even though their routing
1350 * cannot be changed. The numbers assigned are not arbitrary, they correspond
1351 * to the bits required to program the board.
1352 */
1353 enum ni_pfi_routing {
1354 NI_PFI_OUTPUT_PFI_DEFAULT = 0,
1355 NI_PFI_OUTPUT_AI_START1 = 1,
1356 NI_PFI_OUTPUT_AI_START2 = 2,
1357 NI_PFI_OUTPUT_AI_CONVERT = 3,
1358 NI_PFI_OUTPUT_G_SRC1 = 4,
1359 NI_PFI_OUTPUT_G_GATE1 = 5,
1360 NI_PFI_OUTPUT_AO_UPDATE_N = 6,
1361 NI_PFI_OUTPUT_AO_START1 = 7,
1362 NI_PFI_OUTPUT_AI_START_PULSE = 8,
1363 NI_PFI_OUTPUT_G_SRC0 = 9,
1364 NI_PFI_OUTPUT_G_GATE0 = 10,
1365 NI_PFI_OUTPUT_EXT_STROBE = 11,
1366 NI_PFI_OUTPUT_AI_EXT_MUX_CLK = 12,
1367 NI_PFI_OUTPUT_GOUT0 = 13,
1368 NI_PFI_OUTPUT_GOUT1 = 14,
1369 NI_PFI_OUTPUT_FREQ_OUT = 15,
1370 NI_PFI_OUTPUT_PFI_DO = 16,
1371 NI_PFI_OUTPUT_I_ATRIG = 17,
1372 NI_PFI_OUTPUT_RTSI0 = 18,
1373 NI_PFI_OUTPUT_PXI_STAR_TRIGGER_IN = 26,
1374 NI_PFI_OUTPUT_SCXI_TRIG1 = 27,
1375 NI_PFI_OUTPUT_DIO_CHANGE_DETECT_RTSI = 28,
1376 NI_PFI_OUTPUT_CDI_SAMPLE = 29,
1377 NI_PFI_OUTPUT_CDO_UPDATE = 30
1378 };
1379
1380 #define NI_PFI_OUTPUT_RTSI(x) (NI_PFI_OUTPUT_RTSI0 + (x))
1381
1382 /*
1383 * Signals which can be routed to output on a NI PFI pin on a 660x board
1384 * with INSN_CONFIG_SET_ROUTING. The numbers assigned are
1385 * not arbitrary, they correspond to the bits required
1386 * to program the board. Lines 0 to 7 can only be set to
1387 * NI_660X_PFI_OUTPUT_DIO. Lines 32 to 39 can only be set to
1388 * NI_660X_PFI_OUTPUT_COUNTER.
1389 */
1390 enum ni_660x_pfi_routing {
1391 NI_660X_PFI_OUTPUT_COUNTER = 1, /* counter */
1392 NI_660X_PFI_OUTPUT_DIO = 2, /* static digital output */
1393 };
1394
1395 /*
1396 * NI External Trigger lines. These values are not arbitrary, but are related
1397 * to the bits required to program the board (offset by 1 for historical
1398 * reasons).
1399 */
1400 #define NI_EXT_PFI(x) (NI_USUAL_PFI_SELECT(x) - 1)
1401 #define NI_EXT_RTSI(x) (NI_USUAL_RTSI_SELECT(x) - 1)
1402
1403 /*
1404 * Clock sources for CDIO subdevice on NI m-series boards. Used as the
1405 * scan_begin_arg for a comedi_command. These sources may also be bitwise-or'd
1406 * with CR_INVERT to change polarity.
1407 */
1408 enum ni_m_series_cdio_scan_begin_src {
1409 NI_CDIO_SCAN_BEGIN_SRC_GROUND = 0,
1410 NI_CDIO_SCAN_BEGIN_SRC_AI_START = 18,
1411 NI_CDIO_SCAN_BEGIN_SRC_AI_CONVERT = 19,
1412 NI_CDIO_SCAN_BEGIN_SRC_PXI_STAR_TRIGGER = 20,
1413 NI_CDIO_SCAN_BEGIN_SRC_G0_OUT = 28,
1414 NI_CDIO_SCAN_BEGIN_SRC_G1_OUT = 29,
1415 NI_CDIO_SCAN_BEGIN_SRC_ANALOG_TRIGGER = 30,
1416 NI_CDIO_SCAN_BEGIN_SRC_AO_UPDATE = 31,
1417 NI_CDIO_SCAN_BEGIN_SRC_FREQ_OUT = 32,
1418 NI_CDIO_SCAN_BEGIN_SRC_DIO_CHANGE_DETECT_IRQ = 33
1419 };
1420
1421 #define NI_CDIO_SCAN_BEGIN_SRC_PFI(x) NI_USUAL_PFI_SELECT(x)
1422 #define NI_CDIO_SCAN_BEGIN_SRC_RTSI(x) NI_USUAL_RTSI_SELECT(x)
1423
1424 /*
1425 * scan_begin_src for scan_begin_arg==TRIG_EXT with analog output command on NI
1426 * boards. These scan begin sources can also be bitwise-or'd with CR_INVERT to
1427 * change polarity.
1428 */
1429 #define NI_AO_SCAN_BEGIN_SRC_PFI(x) NI_USUAL_PFI_SELECT(x)
1430 #define NI_AO_SCAN_BEGIN_SRC_RTSI(x) NI_USUAL_RTSI_SELECT(x)
1431
1432 /*
1433 * Bits for setting a clock source with
1434 * INSN_CONFIG_SET_CLOCK_SRC when using NI frequency output subdevice.
1435 */
1436 enum ni_freq_out_clock_source_bits {
1437 NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC, /* 10 MHz */
1438 NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC /* 100 KHz */
1439 };
1440
1441 /*
1442 * Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
1443 * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver).
1444 */
1445 enum amplc_dio_clock_source {
1446 /*
1447 * Per channel external clock
1448 * input/output pin (pin is only an
1449 * input when clock source set to this value,
1450 * otherwise it is an output)
1451 */
1452 AMPLC_DIO_CLK_CLKN,
1453 AMPLC_DIO_CLK_10MHZ, /* 10 MHz internal clock */
1454 AMPLC_DIO_CLK_1MHZ, /* 1 MHz internal clock */
1455 AMPLC_DIO_CLK_100KHZ, /* 100 kHz internal clock */
1456 AMPLC_DIO_CLK_10KHZ, /* 10 kHz internal clock */
1457 AMPLC_DIO_CLK_1KHZ, /* 1 kHz internal clock */
1458 /*
1459 * Output of preceding counter channel
1460 * (for channel 0, preceding counter
1461 * channel is channel 2 on preceding
1462 * counter subdevice, for first counter
1463 * subdevice, preceding counter
1464 * subdevice is the last counter
1465 * subdevice)
1466 */
1467 AMPLC_DIO_CLK_OUTNM1,
1468 AMPLC_DIO_CLK_EXT, /* per chip external input pin */
1469 /* the following are "enhanced" clock sources for PCIe models */
1470 AMPLC_DIO_CLK_VCC, /* clock input HIGH */
1471 AMPLC_DIO_CLK_GND, /* clock input LOW */
1472 AMPLC_DIO_CLK_PAT_PRESENT, /* "pattern present" signal */
1473 AMPLC_DIO_CLK_20MHZ /* 20 MHz internal clock */
1474 };
1475
1476 /*
1477 * Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
1478 * timer subdevice on some Amplicon DIO PCIe boards (amplc_dio200 driver).
1479 */
1480 enum amplc_dio_ts_clock_src {
1481 AMPLC_DIO_TS_CLK_1GHZ, /* 1 ns period with 20 ns granularity */
1482 AMPLC_DIO_TS_CLK_1MHZ, /* 1 us period */
1483 AMPLC_DIO_TS_CLK_1KHZ /* 1 ms period */
1484 };
1485
1486 /*
1487 * Values for setting a gate source with INSN_CONFIG_SET_GATE_SRC for
1488 * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver).
1489 */
1490 enum amplc_dio_gate_source {
1491 AMPLC_DIO_GAT_VCC, /* internal high logic level */
1492 AMPLC_DIO_GAT_GND, /* internal low logic level */
1493 AMPLC_DIO_GAT_GATN, /* per channel external gate input */
1494 /*
1495 * negated output of counter channel minus 2
1496 * (for channels 0 or 1, channel minus 2 is channel 1 or 2 on
1497 * the preceding counter subdevice, for the first counter subdevice
1498 * the preceding counter subdevice is the last counter subdevice)
1499 */
1500 AMPLC_DIO_GAT_NOUTNM2,
1501 AMPLC_DIO_GAT_RESERVED4,
1502 AMPLC_DIO_GAT_RESERVED5,
1503 AMPLC_DIO_GAT_RESERVED6,
1504 AMPLC_DIO_GAT_RESERVED7,
1505 /* the following are "enhanced" gate sources for PCIe models */
1506 AMPLC_DIO_GAT_NGATN = 6, /* negated per channel gate input */
1507 /* non-negated output of counter channel minus 2 */
1508 AMPLC_DIO_GAT_OUTNM2,
1509 AMPLC_DIO_GAT_PAT_PRESENT, /* "pattern present" signal */
1510 AMPLC_DIO_GAT_PAT_OCCURRED, /* "pattern occurred" latched */
1511 AMPLC_DIO_GAT_PAT_GONE, /* "pattern gone away" latched */
1512 AMPLC_DIO_GAT_NPAT_PRESENT, /* negated "pattern present" */
1513 AMPLC_DIO_GAT_NPAT_OCCURRED, /* negated "pattern occurred" */
1514 AMPLC_DIO_GAT_NPAT_GONE /* negated "pattern gone away" */
1515 };
1516
1517 /*
1518 * Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
1519 * the counter subdevice on the Kolter Electronic PCI-Counter board
1520 * (ke_counter driver).
1521 */
1522 enum ke_counter_clock_source {
1523 KE_CLK_20MHZ, /* internal 20MHz (default) */
1524 KE_CLK_4MHZ, /* internal 4MHz (option) */
1525 KE_CLK_EXT /* external clock on pin 21 of D-Sub */
1526 };
1527
1528 #endif /* _COMEDI_H */
1529
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.