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|
/*
include/comedi.h (installed as /usr/include/comedi.h)
header file for comedi
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _COMEDI_H
#define _COMEDI_H
#define COMEDI_MAJORVERSION 0
#define COMEDI_MINORVERSION 7
#define COMEDI_MICROVERSION 76
#define VERSION "0.7.76"
/* comedi's major device number */
#define COMEDI_MAJOR 98
/*
maximum number of minor devices. This can be increased, although
kernel structures are currently statically allocated, thus you
don't want this to be much more than you actually use.
*/
#define COMEDI_NDEVICES 16
/* number of config options in the config structure */
#define COMEDI_NDEVCONFOPTS 32
/*length of nth chunk of firmware data*/
#define COMEDI_DEVCONF_AUX_DATA3_LENGTH 25
#define COMEDI_DEVCONF_AUX_DATA2_LENGTH 26
#define COMEDI_DEVCONF_AUX_DATA1_LENGTH 27
#define COMEDI_DEVCONF_AUX_DATA0_LENGTH 28
#define COMEDI_DEVCONF_AUX_DATA_HI 29 /* most significant 32 bits of pointer address (if needed) */
#define COMEDI_DEVCONF_AUX_DATA_LO 30 /* least significant 32 bits of pointer address */
#define COMEDI_DEVCONF_AUX_DATA_LENGTH 31 /* total data length */
/* max length of device and driver names */
#define COMEDI_NAMELEN 20
/* packs and unpacks a channel/range number */
#define CR_PACK(chan, rng, aref) ((((aref)&0x3)<<24) | (((rng)&0xff)<<16) | (chan))
#define CR_PACK_FLAGS(chan, range, aref, flags) (CR_PACK(chan, range, aref) | ((flags) & CR_FLAGS_MASK))
#define CR_CHAN(a) ((a)&0xffff)
#define CR_RANGE(a) (((a)>>16)&0xff)
#define CR_AREF(a) (((a)>>24)&0x03)
#define CR_FLAGS_MASK 0xfc000000
#define CR_ALT_FILTER (1<<26)
#define CR_DITHER CR_ALT_FILTER
#define CR_DEGLITCH CR_ALT_FILTER
#define CR_ALT_SOURCE (1<<27)
#define CR_EDGE (1<<30)
#define CR_INVERT (1<<31)
#define AREF_GROUND 0x00 /* analog ref = analog ground */
#define AREF_COMMON 0x01 /* analog ref = analog common */
#define AREF_DIFF 0x02 /* analog ref = differential */
#define AREF_OTHER 0x03 /* analog ref = other (undefined) */
/* counters -- these are arbitrary values */
#define GPCT_RESET 0x0001
#define GPCT_SET_SOURCE 0x0002
#define GPCT_SET_GATE 0x0004
#define GPCT_SET_DIRECTION 0x0008
#define GPCT_SET_OPERATION 0x0010
#define GPCT_ARM 0x0020
#define GPCT_DISARM 0x0040
#define GPCT_GET_INT_CLK_FRQ 0x0080
#define GPCT_INT_CLOCK 0x0001
#define GPCT_EXT_PIN 0x0002
#define GPCT_NO_GATE 0x0004
#define GPCT_UP 0x0008
#define GPCT_DOWN 0x0010
#define GPCT_HWUD 0x0020
#define GPCT_SIMPLE_EVENT 0x0040
#define GPCT_SINGLE_PERIOD 0x0080
#define GPCT_SINGLE_PW 0x0100
#define GPCT_CONT_PULSE_OUT 0x0200
#define GPCT_SINGLE_PULSE_OUT 0x0400
/* instructions */
#define INSN_MASK_WRITE 0x8000000
#define INSN_MASK_READ 0x4000000
#define INSN_MASK_SPECIAL 0x2000000
#define INSN_READ (0 | INSN_MASK_READ)
#define INSN_WRITE (1 | INSN_MASK_WRITE)
#define INSN_BITS (2 | INSN_MASK_READ|INSN_MASK_WRITE)
#define INSN_CONFIG (3 | INSN_MASK_READ|INSN_MASK_WRITE)
#define INSN_GTOD (4 | INSN_MASK_READ|INSN_MASK_SPECIAL)
#define INSN_WAIT (5 | INSN_MASK_WRITE|INSN_MASK_SPECIAL)
#define INSN_INTTRIG (6 | INSN_MASK_WRITE|INSN_MASK_SPECIAL)
/* trigger flags */
/* These flags are used in comedi_trig structures */
#define TRIG_BOGUS 0x0001 /* do the motions */
#define TRIG_DITHER 0x0002 /* enable dithering */
#define TRIG_DEGLITCH 0x0004 /* enable deglitching */
/*#define TRIG_RT 0x0008 *//* perform op in real time */
#define TRIG_CONFIG 0x0010 /* perform configuration, not triggering */
#define TRIG_WAKE_EOS 0x0020 /* wake up on end-of-scan events */
/*#define TRIG_WRITE 0x0040*//* write to bidirectional devices */
/* command flags */
/* These flags are used in comedi_cmd structures */
#define CMDF_PRIORITY 0x00000008 /* try to use a real-time interrupt while performing command */
#define TRIG_RT CMDF_PRIORITY /* compatibility definition */
#define CMDF_WRITE 0x00000040
#define TRIG_WRITE CMDF_WRITE /* compatibility definition */
#define CMDF_RAWDATA 0x00000080
#define COMEDI_EV_START 0x00040000
#define COMEDI_EV_SCAN_BEGIN 0x00080000
#define COMEDI_EV_CONVERT 0x00100000
#define COMEDI_EV_SCAN_END 0x00200000
#define COMEDI_EV_STOP 0x00400000
#define TRIG_ROUND_MASK 0x00030000
#define TRIG_ROUND_NEAREST 0x00000000
#define TRIG_ROUND_DOWN 0x00010000
#define TRIG_ROUND_UP 0x00020000
#define TRIG_ROUND_UP_NEXT 0x00030000
/* trigger sources */
#define TRIG_ANY 0xffffffff
#define TRIG_INVALID 0x00000000
#define TRIG_NONE 0x00000001 /* never trigger */
#define TRIG_NOW 0x00000002 /* trigger now + N ns */
#define TRIG_FOLLOW 0x00000004 /* trigger on next lower level trig */
#define TRIG_TIME 0x00000008 /* trigger at time N ns */
#define TRIG_TIMER 0x00000010 /* trigger at rate N ns */
#define TRIG_COUNT 0x00000020 /* trigger when count reaches N */
#define TRIG_EXT 0x00000040 /* trigger on external signal N */
#define TRIG_INT 0x00000080 /* trigger on comedi-internal signal N */
#define TRIG_OTHER 0x00000100 /* driver defined */
/* subdevice flags */
#define SDF_BUSY 0x0001 /* device is busy */
#define SDF_BUSY_OWNER 0x0002 /* device is busy with your job */
#define SDF_LOCKED 0x0004 /* subdevice is locked */
#define SDF_LOCK_OWNER 0x0008 /* you own lock */
#define SDF_MAXDATA 0x0010 /* maxdata depends on channel */
#define SDF_FLAGS 0x0020 /* flags depend on channel */
#define SDF_RANGETYPE 0x0040 /* range type depends on channel */
#define SDF_MODE0 0x0080 /* can do mode 0 */
#define SDF_MODE1 0x0100 /* can do mode 1 */
#define SDF_MODE2 0x0200 /* can do mode 2 */
#define SDF_MODE3 0x0400 /* can do mode 3 */
#define SDF_MODE4 0x0800 /* can do mode 4 */
#define SDF_CMD 0x1000 /* can do commands (deprecated) */
#define SDF_SOFT_CALIBRATED 0x2000 /* subdevice uses software calibration */
#define SDF_CMD_WRITE 0x4000 /* can do output commands */
#define SDF_CMD_READ 0x8000 /* can do input commands */
#define SDF_READABLE 0x00010000 /* subdevice can be read (e.g. analog input) */
#define SDF_WRITABLE 0x00020000 /* subdevice can be written (e.g. analog output) */
#define SDF_WRITEABLE SDF_WRITABLE /* spelling error in API */
#define SDF_INTERNAL 0x00040000 /* subdevice does not have externally visible lines */
#define SDF_GROUND 0x00100000 /* can do aref=ground */
#define SDF_COMMON 0x00200000 /* can do aref=common */
#define SDF_DIFF 0x00400000 /* can do aref=diff */
#define SDF_OTHER 0x00800000 /* can do aref=other */
#define SDF_DITHER 0x01000000 /* can do dithering */
#define SDF_DEGLITCH 0x02000000 /* can do deglitching */
#define SDF_MMAP 0x04000000 /* can do mmap() */
#define SDF_RUNNING 0x08000000 /* subdevice is acquiring data */
#define SDF_LSAMPL 0x10000000 /* subdevice uses 32-bit samples */
#define SDF_PACKED 0x20000000 /* subdevice can do packed DIO */
/* re recyle these flags for PWM */
#define SDF_PWM_COUNTER SDF_MODE0 /* PWM can automatically switch off */
#define SDF_PWM_HBRIDGE SDF_MODE1 /* PWM is signed (H-bridge) */
/* subdevice types */
enum comedi_subdevice_type {
COMEDI_SUBD_UNUSED, /* unused by driver */
COMEDI_SUBD_AI, /* analog input */
COMEDI_SUBD_AO, /* analog output */
COMEDI_SUBD_DI, /* digital input */
COMEDI_SUBD_DO, /* digital output */
COMEDI_SUBD_DIO, /* digital input/output */
COMEDI_SUBD_COUNTER, /* counter */
COMEDI_SUBD_TIMER, /* timer */
COMEDI_SUBD_MEMORY, /* memory, EEPROM, DPRAM */
COMEDI_SUBD_CALIB, /* calibration DACs */
COMEDI_SUBD_PROC, /* processor, DSP */
COMEDI_SUBD_SERIAL, /* serial IO */
COMEDI_SUBD_PWM /* PWM */
};
/* configuration instructions */
enum configuration_ids {
INSN_CONFIG_DIO_INPUT = 0,
INSN_CONFIG_DIO_OUTPUT = 1,
INSN_CONFIG_DIO_OPENDRAIN = 2,
INSN_CONFIG_ANALOG_TRIG = 16,
/* INSN_CONFIG_WAVEFORM = 17, */
/* INSN_CONFIG_TRIG = 18, */
/* INSN_CONFIG_COUNTER = 19, */
INSN_CONFIG_ALT_SOURCE = 20,
INSN_CONFIG_DIGITAL_TRIG = 21,
INSN_CONFIG_BLOCK_SIZE = 22,
INSN_CONFIG_TIMER_1 = 23,
INSN_CONFIG_FILTER = 24,
INSN_CONFIG_CHANGE_NOTIFY = 25,
/*ALPHA*/ INSN_CONFIG_SERIAL_CLOCK = 26,
INSN_CONFIG_BIDIRECTIONAL_DATA = 27,
INSN_CONFIG_DIO_QUERY = 28,
INSN_CONFIG_PWM_OUTPUT = 29,
INSN_CONFIG_GET_PWM_OUTPUT = 30,
INSN_CONFIG_ARM = 31,
INSN_CONFIG_DISARM = 32,
INSN_CONFIG_GET_COUNTER_STATUS = 33,
INSN_CONFIG_RESET = 34,
INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR = 1001, /* Use CTR as single pulsegenerator */
INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR = 1002, /* Use CTR as pulsetraingenerator */
INSN_CONFIG_GPCT_QUADRATURE_ENCODER = 1003, /* Use the counter as encoder */
INSN_CONFIG_SET_GATE_SRC = 2001, /* Set gate source */
INSN_CONFIG_GET_GATE_SRC = 2002, /* Get gate source */
INSN_CONFIG_SET_CLOCK_SRC = 2003, /* Set master clock source */
INSN_CONFIG_GET_CLOCK_SRC = 2004, /* Get master clock source */
INSN_CONFIG_SET_OTHER_SRC = 2005, /* Set other source */
/* INSN_CONFIG_GET_OTHER_SRC = 2006,*//* Get other source */
INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE = 2006, /* Get size in bytes of
subdevice's on-board
fifos used during
streaming
input/output */
INSN_CONFIG_SET_COUNTER_MODE = 4097,
INSN_CONFIG_8254_SET_MODE = INSN_CONFIG_SET_COUNTER_MODE, /* deprecated */
INSN_CONFIG_8254_READ_STATUS = 4098,
INSN_CONFIG_SET_ROUTING = 4099,
INSN_CONFIG_GET_ROUTING = 4109,
/* PWM */
INSN_CONFIG_PWM_SET_PERIOD = 5000, /* sets frequency */
INSN_CONFIG_PWM_GET_PERIOD = 5001, /* gets frequency */
INSN_CONFIG_GET_PWM_STATUS = 5002, /* is it running? */
INSN_CONFIG_PWM_SET_H_BRIDGE = 5003, /* sets H bridge: duty cycle and sign bit for a relay at the same time */
INSN_CONFIG_PWM_GET_H_BRIDGE = 5004 /* gets H bridge data: duty cycle and the sign bit */
};
enum comedi_io_direction {
COMEDI_INPUT = 0,
COMEDI_OUTPUT = 1,
COMEDI_OPENDRAIN = 2
};
enum comedi_support_level {
COMEDI_UNKNOWN_SUPPORT = 0,
COMEDI_SUPPORTED,
COMEDI_UNSUPPORTED
};
/* ioctls */
#define CIO 'd'
#define COMEDI_DEVCONFIG _IOW(CIO, 0, struct comedi_devconfig)
#define COMEDI_DEVINFO _IOR(CIO, 1, struct comedi_devinfo)
#define COMEDI_SUBDINFO _IOR(CIO, 2, struct comedi_subdinfo)
#define COMEDI_CHANINFO _IOR(CIO, 3, struct comedi_chaninfo)
#define COMEDI_TRIG _IOWR(CIO, 4, comedi_trig)
#define COMEDI_LOCK _IO(CIO, 5)
#define COMEDI_UNLOCK _IO(CIO, 6)
#define COMEDI_CANCEL _IO(CIO, 7)
#define COMEDI_RANGEINFO _IOR(CIO, 8, struct comedi_rangeinfo)
#define COMEDI_CMD _IOR(CIO, 9, struct comedi_cmd)
#define COMEDI_CMDTEST _IOR(CIO, 10, struct comedi_cmd)
#define COMEDI_INSNLIST _IOR(CIO, 11, struct comedi_insnlist)
#define COMEDI_INSN _IOR(CIO, 12, struct comedi_insn)
#d
|