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path: root/drivers/staging/comedi/comedi.h
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Diffstat (limited to 'drivers/staging/comedi/comedi.h')
-rw-r--r--drivers/staging/comedi/comedi.h937
1 files changed, 937 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h
new file mode 100644
index 000000000..745574077
--- /dev/null
+++ b/drivers/staging/comedi/comedi.h
@@ -0,0 +1,937 @@
+/*
+ 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.
+*/
+
+#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
+
+/*
+ * NOTE: 'comedi_config --init-data' is deprecated
+ *
+ * The following indexes in the config options were used by
+ * comedi_config to pass firmware blobs from user space to the
+ * comedi drivers. The request_firmware() hotplug interface is
+ * now used by all comedi drivers instead.
+ */
+
+/* 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
+/* most significant 32 bits of pointer address (if needed) */
+#define COMEDI_DEVCONF_AUX_DATA_HI 29
+/* least significant 32 bits of pointer address */
+#define COMEDI_DEVCONF_AUX_DATA_LO 30
+#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_DITHER 0x0002 /* enable dithering */
+#define TRIG_DEGLITCH 0x0004 /* enable deglitching */
+#define TRIG_CONFIG 0x0010 /* perform configuration, not triggering */
+
+/* command flags */
+/* These flags are used in comedi_cmd structures */
+
+#define CMDF_BOGUS 0x00000001 /* do the motions */
+
+/* try to use a real-time interrupt while performing command */
+#define CMDF_PRIORITY 0x00000008
+
+/* wake up on end-of-scan events */
+#define CMDF_WAKE_EOS 0x00000020
+
+#define CMDF_WRITE 0x00000040
+
+#define CMDF_RAWDATA 0x00000080
+
+/* timer rounding definitions */
+#define CMDF_ROUND_MASK 0x00030000
+#define CMDF_ROUND_NEAREST 0x00000000
+#define CMDF_ROUND_DOWN 0x00010000
+#define CMDF_ROUND_UP 0x00020000
+#define CMDF_ROUND_UP_NEXT 0x00030000
+
+#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
+
+/* compatibility definitions */
+#define TRIG_BOGUS CMDF_BOGUS
+#define TRIG_RT CMDF_PRIORITY
+#define TRIG_WAKE_EOS CMDF_WAKE_EOS
+#define TRIG_WRITE CMDF_WRITE
+#define TRIG_ROUND_MASK CMDF_ROUND_MASK
+#define TRIG_ROUND_NEAREST CMDF_ROUND_NEAREST
+#define TRIG_ROUND_DOWN CMDF_ROUND_DOWN
+#define TRIG_ROUND_UP CMDF_ROUND_UP
+#define TRIG_ROUND_UP_NEXT CMDF_ROUND_UP_NEXT
+
+/* 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 */
+
+/* subdevice can be read (e.g. analog input) */
+#define SDF_READABLE 0x00010000
+/* subdevice can be written (e.g. analog output) */
+#define SDF_WRITABLE 0x00020000
+#define SDF_WRITEABLE SDF_WRITABLE /* spelling error in API */
+/* subdevice does not have externally visible lines */
+#define SDF_INTERNAL 0x00040000
+#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,
+
+ INSN_CONFIG_SERIAL_CLOCK = 26, /*ALPHA*/
+ 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,
+ /* Use CTR as single pulsegenerator */
+ INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR = 1001,
+ /* Use CTR as pulsetraingenerator */
+ INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR = 1002,
+ /* Use the counter as encoder */
+ INSN_CONFIG_GPCT_QUADRATURE_ENCODER = 1003,
+ INSN_CONFIG_SET_GATE_SRC = 2001, /* Set gate source */
+ INSN_CONFIG_GET_GATE_SRC = 2002, /* Get gate source */
+ /* Set master clock source */
+ INSN_CONFIG_SET_CLOCK_SRC = 2003,
+ 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 */
+ /* Get size in bytes of subdevice's on-board fifos used during
+ * streaming input/output */
+ INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE = 2006,
+ INSN_CONFIG_SET_COUNTER_MODE = 4097,
+ /* INSN_CONFIG_8254_SET_MODE is deprecated */
+ INSN_CONFIG_8254_SET_MODE = INSN_CONFIG_SET_COUNTER_MODE,
+ 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? */
+ /* sets H bridge: duty cycle and sign bit for a relay at the
+ * same time */
+ INSN_CONFIG_PWM_SET_H_BRIDGE = 5003,
+ /* gets H bridge data: duty cycle and the sign bit */
+ INSN_CONFIG_PWM_GET_H_BRIDGE = 5004
+};
+
+/*
+ * Settings for INSN_CONFIG_DIGITAL_TRIG:
+ * data[0] = INSN_CONFIG_DIGITAL_TRIG
+ * data[1] = trigger ID
+ * data[2] = configuration operation
+ * data[3] = configuration parameter 1
+ * data[4] = configuration parameter 2
+ * data[5] = configuration parameter 3
+ *
+ * operation parameter 1 parameter 2 parameter 3
+ * --------------------------------- ----------- ----------- -----------
+ * COMEDI_DIGITAL_TRIG_DISABLE
+ * COMEDI_DIGITAL_TRIG_ENABLE_EDGES left-shift rising-edges falling-edges
+ * COMEDI_DIGITAL_TRIG_ENABLE_LEVELS left-shift high-levels low-levels
+ *
+ * COMEDI_DIGITAL_TRIG_DISABLE returns the trigger to its default, inactive,
+ * unconfigured state.
+ *
+ * COMEDI_DIGITAL_TRIG_ENABLE_EDGES sets the rising and/or falling edge inputs
+ * that each can fire the trigger.
+ *
+ * COMEDI_DIGITAL_TRIG_ENABLE_LEVELS sets a combination of high and/or low
+ * level inputs that can fire the trigger.
+ *
+ * "left-shift" is useful if the trigger has more than 32 inputs to specify the
+ * first input for this configuration.
+ *
+ * Some sequences of INSN_CONFIG_DIGITAL_TRIG instructions may have a (partly)
+ * accumulative effect, depending on the low-level driver. This is useful
+ * when setting up a trigger that has more than 32 inputs or has a combination
+ * of edge and level triggered inputs.
+ */
+enum comedi_digital_trig_op {
+ COMEDI_DIGITAL_TRIG_DISABLE = 0,
+ COMEDI_DIGITAL_TRIG_ENABLE_EDGES = 1,
+ COMEDI_DIGITAL_TRIG_ENABLE_LEVELS = 2
+};
+
+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)
+#define COMEDI_BUFCONFIG _IOR(CIO, 13, struct comedi_bufconfig)
+#define COMEDI_BUFINFO _IOWR(CIO, 14, struct comedi_bufinfo)
+#define COMEDI_POLL _IO(CIO, 15)
+#define COMEDI_SETRSUBD _IO(CIO, 16)
+#define COMEDI_SETWSUBD _IO(CIO, 17)
+
+/* structures */
+
+struct comedi_trig {
+ unsigned int subdev; /* subdevice */
+ unsigned int mode; /* mode */
+ unsigned int flags;
+ unsigned int n_chan; /* number of channels */
+ unsigned int *chanlist; /* channel/range list */
+ short *data; /* data list, size depends on subd flags */
+ unsigned int n; /* number of scans */
+ unsigned int trigsrc;
+ unsigned int trigvar;
+ unsigned int trigvar1;
+ unsigned int data_len;
+ unsigned int unused[3];
+};
+
+struct comedi_insn {
+ unsigned int insn;
+ unsigned int n;
+ unsigned int __user *data;
+ unsigned int subdev;
+ unsigned int chanspec;
+ unsigned int unused[3];
+};
+
+struct comedi_insnlist {
+ unsigned int n_insns;
+ struct comedi_insn __user *insns;
+};
+
+struct comedi_cmd {
+ unsigned int subdev;
+ unsigned int flags;
+
+ unsigned int start_src;
+ unsigned int start_arg;
+
+ unsigned int scan_begin_src;
+ unsigned int scan_begin_arg;
+
+ unsigned int convert_src;
+ unsigned int convert_arg;
+
+ unsigned int scan_end_src;
+ unsigned int scan_end_arg;
+
+ unsigned int stop_src;
+ unsigned int stop_arg;
+
+ unsigned int *chanlist; /* channel/range list */
+ unsigned int chanlist_len;
+
+ short __user *data; /* data list, size depends on subd flags */
+ unsigned int data_len;
+};
+
+struct comedi_chaninfo {
+ unsigned int subdev;
+ unsigned int __user *maxdata_list;
+ unsigned int __user *flaglist;
+ unsigned int __user *rangelist;
+ unsigned int unused[4];
+};
+
+struct comedi_rangeinfo {
+ unsigned int range_type;
+ void __user *range_ptr;
+};
+
+struct comedi_krange {
+ int min; /* fixed point, multiply by 1e-6 */
+ int max; /* fixed point, multiply by 1e-6 */
+ unsigned int flags;
+};
+
+struct comedi_subdinfo {
+ unsigned int type;
+ unsigned int n_chan;
+ unsigned int subd_flags;
+ unsigned int timer_type;
+ unsigned int len_chanlist;
+ unsigned int maxdata;
+ unsigned int flags; /* channel flags */
+ unsigned int range_type; /* lookup in kernel */
+ unsigned int settling_time_0;
+ /* see support_level enum for values */
+ unsigned insn_bits_support;
+ unsigned int unused[8];
+};
+
+struct comedi_devinfo {
+ unsigned int version_code;
+ unsigned int n_subdevs;
+ char driver_name[COMEDI_NAMELEN];
+ char board_name[COMEDI_NAMELEN];
+ int read_subdevice;
+ int write_subdevice;
+ int unused[30];
+};
+
+struct comedi_devconfig {
+ char board_name[COMEDI_NAMELEN];
+ int options[COMEDI_NDEVCONFOPTS];
+};
+
+struct comedi_bufconfig {
+ unsigned int subdevice;
+ unsigned int flags;
+
+ unsigned int maximum_size;
+ unsigned int size;
+
+ unsigned int unused[4];
+};
+
+struct comedi_bufinfo {
+ unsigned int subdevice;
+ unsigned int bytes_read;
+
+ unsigned int buf_write_ptr;
+ unsigned int buf_read_ptr;
+ unsigned int buf_write_count;
+ unsigned int buf_read_count;
+
+ unsigned int bytes_written;
+
+ unsigned int unused[4];
+};
+
+/* range stuff */
+
+#define __RANGE(a, b) ((((a)&0xffff)<<16)|((b)&0xffff))
+
+#define RANGE_OFFSET(a) (((a)>>16)&0xffff)
+#define RANGE_LENGTH(b) ((b)&0xffff)
+
+#define RF_UNIT(flags) ((flags)&0xff)
+#define RF_EXTERNAL (1<<8)
+
+#define UNIT_volt 0
+#define UNIT_mA 1
+#define UNIT_none 2
+
+#define COMEDI_MIN_SPEED ((unsigned int)0xffffffff)
+
+/**********************************************************/
+/* everything after this line is ALPHA */
+/**********************************************************/
+
+/*
+ 8254 specific configuration.
+
+ It supports two config commands:
+
+ 0 ID: INSN_CONFIG_SET_COUNTER_MODE
+ 1 8254 Mode
+ I8254_MODE0, I8254_MODE1, ..., I8254_MODE5
+ OR'ed with:
+ I8254_BCD, I8254_BINARY
+
+ 0 ID: INSN_CONFIG_8254_READ_STATUS
+ 1 <-- Status byte returned here.
+ B7 = Output
+ B6 = NULL Count
+ B5 - B0 Current mode.
+
+*/
+
+enum i8254_mode {
+ I8254_MODE0 = (0 << 1), /* Interrupt on terminal count */
+ I8254_MODE1 = (1 << 1), /* Hardware retriggerable one-shot */
+ I8254_MODE2 = (2 << 1), /* Rate generator */
+ I8254_MODE3 = (3 << 1), /* Square wave mode */
+ I8254_MODE4 = (4 << 1), /* Software triggered strobe */
+ I8254_MODE5 = (5 << 1), /* Hardware triggered strobe
+ * (retriggerable) */
+ I8254_BCD = 1, /* use binary-coded decimal instead of binary
+ * (pretty useless) */
+ I8254_BINARY = 0
+};
+
+#define NI_USUAL_PFI_SELECT(x) (((x) < 10) ? (0x1 + (x)) : (0xb + (x)))
+#define NI_USUAL_RTSI_SELECT(x) (((x) < 7) ? (0xb + (x)) : 0x1b)
+
+/* mode bits for NI general-purpose counters, set with
+ * INSN_CONFIG_SET_COUNTER_MODE */
+#define NI_GPCT_COUNTING_MODE_SHIFT 16
+#define NI_GPCT_INDEX_PHASE_BITSHIFT 20
+#define NI_GPCT_COUNTING_DIRECTION_SHIFT 24
+enum ni_gpct_mode_bits {
+ NI_GPCT_GATE_ON_BOTH_EDGES_BIT = 0x4,
+ NI_GPCT_EDGE_GATE_MODE_MASK = 0x18,
+ NI_GPCT_EDGE_GATE_STARTS_STOPS_BITS = 0x0,
+ NI_GPCT_EDGE_GATE_STOPS_STARTS_BITS = 0x8,
+ NI_GPCT_EDGE_GATE_STARTS_BITS = 0x10,
+ NI_GPCT_EDGE_GATE_NO_STARTS_NO_STOPS_BITS = 0x18,
+ NI_GPCT_STOP_MODE_MASK = 0x60,
+ NI_GPCT_STOP_ON_GATE_BITS = 0x00,
+ NI_GPCT_STOP_ON_GATE_OR_TC_BITS = 0x20,
+ NI_GPCT_STOP_ON_GATE_OR_SECOND_TC_BITS = 0x40,
+ NI_GPCT_LOAD_B_SELECT_BIT = 0x80,
+ NI_GPCT_OUTPUT_MODE_MASK = 0x300,
+ NI_GPCT_OUTPUT_TC_PULSE_BITS = 0x100,
+ NI_GPCT_OUTPUT_TC_TOGGLE_BITS = 0x200,
+ NI_GPCT_OUTPUT_TC_OR_GATE_TOGGLE_BITS = 0x300,
+ NI_GPCT_HARDWARE_DISARM_MASK = 0xc00,
+ NI_GPCT_NO_HARDWARE_DISARM_BITS = 0x000,
+ NI_GPCT_DISARM_AT_TC_BITS = 0x400,
+ NI_GPCT_DISARM_AT_GATE_BITS = 0x800,
+ NI_GPCT_DISARM_AT_TC_OR_GATE_BITS = 0xc00,
+ NI_GPCT_LOADING_ON_TC_BIT = 0x1000,
+ NI_GPCT_LOADING_ON_GATE_BIT = 0x4000,
+ NI_GPCT_COUNTING_MODE_MASK = 0x7 << NI_GPCT_COUNTING_MODE_SHIFT,
+ NI_GPCT_COUNTING_MODE_NORMAL_BITS =
+ 0x0 << NI_GPCT_COUNTING_MODE_SHIFT,
+ NI_GPCT_COUNTING_MODE_QUADRATURE_X1_BITS =
+ 0x1 << NI_GPCT_COUNTING_MODE_SHIFT,
+ NI_GPCT_COUNTING_MODE_QUADRATURE_X2_BITS =
+ 0x2 << NI_GPCT_COUNTING_MODE_SHIFT,
+ NI_GPCT_COUNTING_MODE_QUADRATURE_X4_BITS =
+ 0x3 << NI_GPCT_COUNTING_MODE_SHIFT,
+ NI_GPCT_COUNTING_MODE_TWO_PULSE_BITS =
+ 0x4 << NI_GPCT_COUNTING_MODE_SHIFT,
+ NI_GPCT_COUNTING_MODE_SYNC_SOURCE_BITS =
+ 0x6 << NI_GPCT_COUNTING_MODE_SHIFT,
+ NI_GPCT_INDEX_PHASE_MASK = 0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+ NI_GPCT_INDEX_PHASE_LOW_A_LOW_B_BITS =
+ 0x0 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+ NI_GPCT_INDEX_PHASE_LOW_A_HIGH_B_BITS =
+ 0x1 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+ NI_GPCT_INDEX_PHASE_HIGH_A_LOW_B_BITS =
+ 0x2 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+ NI_GPCT_INDEX_PHASE_HIGH_A_HIGH_B_BITS =
+ 0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+ NI_GPCT_INDEX_ENABLE_BIT = 0x400000,
+ NI_GPCT_COUNTING_DIRECTION_MASK =
+ 0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+ NI_GPCT_COUNTING_DIRECTION_DOWN_BITS =
+ 0x00 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+ NI_GPCT_COUNTING_DIRECTION_UP_BITS =
+ 0x1 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+ NI_GPCT_COUNTING_DIRECTION_HW_UP_DOWN_BITS =
+ 0x2 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+ NI_GPCT_COUNTING_DIRECTION_HW_GATE_BITS =
+ 0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+ NI_GPCT_RELOAD_SOURCE_MASK = 0xc000000,
+ NI_GPCT_RELOAD_SOURCE_FIXED_BITS = 0x0,
+ NI_GPCT_RELOAD_SOURCE_SWITCHING_BITS = 0x4000000,
+ NI_GPCT_RELOAD_SOURCE_GATE_SELECT_BITS = 0x8000000,
+ NI_GPCT_OR_GATE_BIT = 0x10000000,
+ NI_GPCT_INVERT_OUTPUT_BIT = 0x20000000
+};
+
+/* Bits for setting a clock source with
+ * INSN_CONFIG_SET_CLOCK_SRC when using NI general-purpose counters. */
+enum ni_gpct_clock_source_bits {
+ NI_GPCT_CLOCK_SRC_SELECT_MASK = 0x3f,
+ NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS = 0x0,
+ NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS = 0x1,
+ NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS = 0x2,
+ NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS = 0x3,
+ NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS = 0x4,
+ NI_GPCT_NEXT_TC_CLOCK_SRC_BITS = 0x5,
+ /* NI 660x-specific */
+ NI_GPCT_SOURCE_PIN_i_CLOCK_SRC_BITS = 0x6,
+ NI_GPCT_PXI10_CLOCK_SRC_BITS = 0x7,
+ NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS = 0x8,
+ NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS = 0x9,
+ NI_GPCT_PRESCALE_MODE_CLOCK_SRC_MASK = 0x30000000,
+ NI_GPCT_NO_PRESCALE_CLOCK_SRC_BITS = 0x0,
+ /* divide source by 2 */
+ NI_GPCT_PRESCALE_X2_CLOCK_SRC_BITS = 0x10000000,
+ /* divide source by 8 */
+ NI_GPCT_PRESCALE_X8_CLOCK_SRC_BITS = 0x20000000,
+ NI_GPCT_INVERT_CLOCK_SRC_BIT = 0x80000000
+};
+
+/* NI 660x-specific */
+#define NI_GPCT_SOURCE_PIN_CLOCK_SRC_BITS(x) (0x10 + (x))
+
+#define NI_GPCT_RTSI_CLOCK_SRC_BITS(x) (0x18 + (x))
+
+/* no pfi on NI 660x */
+#define NI_GPCT_PFI_CLOCK_SRC_BITS(x) (0x20 + (x))
+
+/* Possibilities for setting a gate source with
+INSN_CONFIG_SET_GATE_SRC when using NI general-purpose counters.
+May be bitwise-or'd with CR_EDGE or CR_INVERT. */
+enum ni_gpct_gate_select {
+ /* m-series gates */
+ NI_GPCT_TIMESTAMP_MUX_GATE_SELECT = 0x0,
+ NI_GPCT_AI_START2_GATE_SELECT = 0x12,
+ NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT = 0x13,
+ NI_GPCT_NEXT_OUT_GATE_SELECT = 0x14,
+ NI_GPCT_AI_START1_GATE_SELECT = 0x1c,
+ NI_GPCT_NEXT_SOURCE_GATE_SELECT = 0x1d,
+ NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT = 0x1e,
+ NI_GPCT_LOGIC_LOW_GATE_SELECT = 0x1f,
+ /* more gates for 660x */
+ NI_GPCT_SOURCE_PIN_i_GATE_SELECT = 0x100,
+ NI_GPCT_GATE_PIN_i_GATE_SELECT = 0x101,
+ /* more gates for 660x "second gate" */
+ NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT = 0x201,
+ NI_GPCT_SELECTED_GATE_GATE_SELECT = 0x21e,
+ /* m-series "second gate" sources are unknown,
+ * we should add them here with an offset of 0x300 when
+ * known. */
+ NI_GPCT_DISABLED_GATE_SELECT = 0x8000,
+};
+
+#define NI_GPCT_GATE_PIN_GATE_SELECT(x) (0x102 + (x))
+#define NI_GPCT_RTSI_GATE_SELECT(x) NI_USUAL_RTSI_SELECT(x)
+#define NI_GPCT_PFI_GATE_SELECT(x) NI_USUAL_PFI_SELECT(x)
+#define NI_GPCT_UP_DOWN_PIN_GATE_SELECT(x) (0x202 + (x))
+
+/* Possibilities for setting a source with
+INSN_CONFIG_SET_OTHER_SRC when using NI general-purpose counters. */
+enum ni_gpct_other_index {
+ NI_GPCT_SOURCE_ENCODER_A,
+ NI_GPCT_SOURCE_ENCODER_B,
+ NI_GPCT_SOURCE_ENCODER_Z
+};
+
+enum ni_gpct_other_select {
+ /* m-series gates */
+ /* Still unknown, probably only need NI_GPCT_PFI_OTHER_SELECT */
+ NI_GPCT_DISABLED_OTHER_SELECT = 0x8000,
+};
+
+#define NI_GPCT_PFI_OTHER_SELECT(x) NI_USUAL_PFI_SELECT(x)
+
+/* start sources for ni general-purpose counters for use with
+INSN_CONFIG_ARM */
+enum ni_gpct_arm_source {
+ NI_GPCT_ARM_IMMEDIATE = 0x0,
+ NI_GPCT_ARM_PAIRED_IMMEDIATE = 0x1, /* Start both the counter
+ * and the adjacent paired
+ * counter simultaneously */
+ /* NI doesn't document bits for selecting hardware arm triggers.
+ * If the NI_GPCT_ARM_UNKNOWN bit is set, we will pass the least
+ * significant bits (3 bits for 660x or 5 bits for m-series)
+ * through to the hardware. This will at least allow someone to
+ * figure out what the bits do later. */
+ NI_GPCT_ARM_UNKNOWN = 0x1000,
+};
+
+/* digital filtering options for ni 660x for use with INSN_CONFIG_FILTER. */
+enum ni_gpct_filter_select {
+ NI_GPCT_FILTER_OFF = 0x0,
+ NI_GPCT_FILTER_TIMEBASE_3_SYNC = 0x1,
+ NI_GPCT_FILTER_100x_TIMEBASE_1 = 0x2,
+ NI_GPCT_FILTER_20x_TIMEBASE_1 = 0x3,
+ NI_GPCT_FILTER_10x_TIMEBASE_1 = 0x4,
+ NI_GPCT_FILTER_2x_TIMEBASE_1 = 0x5,
+ NI_GPCT_FILTER_2x_TIMEBASE_3 = 0x6
+};
+
+/* PFI digital filtering options for ni m-series for use with
+ * INSN_CONFIG_FILTER. */
+enum ni_pfi_filter_select {
+ NI_PFI_FILTER_OFF = 0x0,
+ NI_PFI_FILTER_125ns = 0x1,
+ NI_PFI_FILTER_6425ns = 0x2,
+ NI_PFI_FILTER_2550us = 0x3
+};
+
+/* master clock sources for ni mio boards and INSN_CONFIG_SET_CLOCK_SRC */
+enum ni_mio_clock_source {
+ NI_MIO_INTERNAL_CLOCK = 0,
+ NI_MIO_RTSI_CLOCK = 1, /* doesn't work for m-series, use
+ NI_MIO_PLL_RTSI_CLOCK() */
+ /* the NI_MIO_PLL_* sources are m-series only */
+ NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK = 2,
+ NI_MIO_PLL_PXI10_CLOCK = 3,
+ NI_MIO_PLL_RTSI0_CLOCK = 4
+};
+
+#define NI_MIO_PLL_RTSI_CLOCK(x) (NI_MIO_PLL_RTSI0_CLOCK + (x))
+
+/* Signals which can be routed to an NI RTSI pin with INSN_CONFIG_SET_ROUTING.
+ The numbers assigned are not arbitrary, they correspond to the bits required
+ to program the board. */
+enum ni_rtsi_routing {
+ NI_RTSI_OUTPUT_ADR_START1 = 0,
+ NI_RTSI_OUTPUT_ADR_START2 = 1,
+ NI_RTSI_OUTPUT_SCLKG = 2,
+ NI_RTSI_OUTPUT_DACUPDN = 3,
+ NI_RTSI_OUTPUT_DA_START1 = 4,
+ NI_RTSI_OUTPUT_G_SRC0 = 5,
+ NI_RTSI_OUTPUT_G_GATE0 = 6,
+ NI_RTSI_OUTPUT_RGOUT0 = 7,
+ NI_RTSI_OUTPUT_RTSI_BRD_0 = 8,
+ NI_RTSI_OUTPUT_RTSI_OSC = 12 /* pre-m-series always have RTSI
+ * clock on line 7 */
+};
+
+#define NI_RTSI_OUTPUT_RTSI_BRD(x) (NI_RTSI_OUTPUT_RTSI_BRD_0 + (x))
+
+/* Signals which can be routed to an NI PFI pin on an m-series board with
+ * INSN_CONFIG_SET_ROUTING. These numbers are also returned by
+ * INSN_CONFIG_GET_ROUTING on pre-m-series boards, even though their routing
+ * cannot be changed. The numbers assigned are not arbitrary, they correspond
+ * to the bits required to program the board. */
+enum ni_pfi_routing {
+ NI_PFI_OUTPUT_PFI_DEFAULT = 0,
+ NI_PFI_OUTPUT_AI_START1 = 1,
+ NI_PFI_OUTPUT_AI_START2 = 2,
+ NI_PFI_OUTPUT_AI_CONVERT = 3,
+ NI_PFI_OUTPUT_G_SRC1 = 4,
+ NI_PFI_OUTPUT_G_GATE1 = 5,
+ NI_PFI_OUTPUT_AO_UPDATE_N = 6,
+ NI_PFI_OUTPUT_AO_START1 = 7,
+ NI_PFI_OUTPUT_AI_START_PULSE = 8,
+ NI_PFI_OUTPUT_G_SRC0 = 9,
+ NI_PFI_OUTPUT_G_GATE0 = 10,
+ NI_PFI_OUTPUT_EXT_STROBE = 11,
+ NI_PFI_OUTPUT_AI_EXT_MUX_CLK = 12,
+ NI_PFI_OUTPUT_GOUT0 = 13,
+ NI_PFI_OUTPUT_GOUT1 = 14,
+ NI_PFI_OUTPUT_FREQ_OUT = 15,
+ NI_PFI_OUTPUT_PFI_DO = 16,
+ NI_PFI_OUTPUT_I_ATRIG = 17,
+ NI_PFI_OUTPUT_RTSI0 = 18,
+ NI_PFI_OUTPUT_PXI_STAR_TRIGGER_IN = 26,
+ NI_PFI_OUTPUT_SCXI_TRIG1 = 27,
+ NI_PFI_OUTPUT_DIO_CHANGE_DETECT_RTSI = 28,
+ NI_PFI_OUTPUT_CDI_SAMPLE = 29,
+ NI_PFI_OUTPUT_CDO_UPDATE = 30
+};
+
+#define NI_PFI_OUTPUT_RTSI(x) (NI_PFI_OUTPUT_RTSI0 + (x))
+
+/* Signals which can be routed to output on a NI PFI pin on a 660x board
+ with INSN_CONFIG_SET_ROUTING. The numbers assigned are
+ not arbitrary, they correspond to the bits required
+ to program the board. Lines 0 to 7 can only be set to
+ NI_660X_PFI_OUTPUT_DIO. Lines 32 to 39 can only be set to
+ NI_660X_PFI_OUTPUT_COUNTER. */
+enum ni_660x_pfi_routing {
+ NI_660X_PFI_OUTPUT_COUNTER = 1, /* counter */
+ NI_660X_PFI_OUTPUT_DIO = 2, /* static digital output */
+};
+
+/* NI External Trigger lines. These values are not arbitrary, but are related
+ * to the bits required to program the board (offset by 1 for historical
+ * reasons). */
+#define NI_EXT_PFI(x) (NI_USUAL_PFI_SELECT(x) - 1)
+#define NI_EXT_RTSI(x) (NI_USUAL_RTSI_SELECT(x) - 1)
+
+/* status bits for INSN_CONFIG_GET_COUNTER_STATUS */
+enum comedi_counter_status_flags {
+ COMEDI_COUNTER_ARMED = 0x1,
+ COMEDI_COUNTER_COUNTING = 0x2,
+ COMEDI_COUNTER_TERMINAL_COUNT = 0x4,
+};
+
+/* Clock sources for CDIO subdevice on NI m-series boards. Used as the
+ * scan_begin_arg for a comedi_command. These sources may also be bitwise-or'd
+ * with CR_INVERT to change polarity. */
+enum ni_m_series_cdio_scan_begin_src {
+ NI_CDIO_SCAN_BEGIN_SRC_GROUND = 0,
+ NI_CDIO_SCAN_BEGIN_SRC_AI_START = 18,
+ NI_CDIO_SCAN_BEGIN_SRC_AI_CONVERT = 19,
+ NI_CDIO_SCAN_BEGIN_SRC_PXI_STAR_TRIGGER = 20,
+ NI_CDIO_SCAN_BEGIN_SRC_G0_OUT = 28,
+ NI_CDIO_SCAN_BEGIN_SRC_G1_OUT = 29,
+ NI_CDIO_SCAN_BEGIN_SRC_ANALOG_TRIGGER = 30,
+ NI_CDIO_SCAN_BEGIN_SRC_AO_UPDATE = 31,
+ NI_CDIO_SCAN_BEGIN_SRC_FREQ_OUT = 32,
+ NI_CDIO_SCAN_BEGIN_SRC_DIO_CHANGE_DETECT_IRQ = 33
+};
+
+#define NI_CDIO_SCAN_BEGIN_SRC_PFI(x) NI_USUAL_PFI_SELECT(x)
+#define NI_CDIO_SCAN_BEGIN_SRC_RTSI(x) NI_USUAL_RTSI_SELECT(x)
+
+/* scan_begin_src for scan_begin_arg==TRIG_EXT with analog output command on NI
+ * boards. These scan begin sources can also be bitwise-or'd with CR_INVERT to
+ * change polarity. */
+#define NI_AO_SCAN_BEGIN_SRC_PFI(x) NI_USUAL_PFI_SELECT(x)
+#define NI_AO_SCAN_BEGIN_SRC_RTSI(x) NI_USUAL_RTSI_SELECT(x)
+
+/* Bits for setting a clock source with
+ * INSN_CONFIG_SET_CLOCK_SRC when using NI frequency output subdevice. */
+enum ni_freq_out_clock_source_bits {
+ NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC, /* 10 MHz */
+ NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC /* 100 KHz */
+};
+
+/* Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
+ * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
+enum amplc_dio_clock_source {
+ AMPLC_DIO_CLK_CLKN, /* per channel external clock
+ input/output pin (pin is only an
+ input when clock source set to this
+ value, otherwise it is an output) */
+ AMPLC_DIO_CLK_10MHZ, /* 10 MHz internal clock */
+ AMPLC_DIO_CLK_1MHZ, /* 1 MHz internal clock */
+ AMPLC_DIO_CLK_100KHZ, /* 100 kHz internal clock */
+ AMPLC_DIO_CLK_10KHZ, /* 10 kHz internal clock */
+ AMPLC_DIO_CLK_1KHZ, /* 1 kHz internal clock */
+ AMPLC_DIO_CLK_OUTNM1, /* output of preceding counter channel
+ (for channel 0, preceding counter
+ channel is channel 2 on preceding
+ counter subdevice, for first counter
+ subdevice, preceding counter
+ subdevice is the last counter
+ subdevice) */
+ AMPLC_DIO_CLK_EXT, /* per chip external input pin */
+ /* the following are "enhanced" clock sources for PCIe models */
+ AMPLC_DIO_CLK_VCC, /* clock input HIGH */
+ AMPLC_DIO_CLK_GND, /* clock input LOW */
+ AMPLC_DIO_CLK_PAT_PRESENT, /* "pattern present" signal */
+ AMPLC_DIO_CLK_20MHZ /* 20 MHz internal clock */
+};
+
+/* Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
+ * timer subdevice on some Amplicon DIO PCIe boards (amplc_dio200 driver). */
+enum amplc_dio_ts_clock_src {
+ AMPLC_DIO_TS_CLK_1GHZ, /* 1 ns period with 20 ns granularity */
+ AMPLC_DIO_TS_CLK_1MHZ, /* 1 us period */
+ AMPLC_DIO_TS_CLK_1KHZ /* 1 ms period */
+};
+
+/* Values for setting a gate source with INSN_CONFIG_SET_GATE_SRC for
+ * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
+enum amplc_dio_gate_source {
+ AMPLC_DIO_GAT_VCC, /* internal high logic level */
+ AMPLC_DIO_GAT_GND, /* internal low logic level */
+ AMPLC_DIO_GAT_GATN, /* per channel external gate input */
+ AMPLC_DIO_GAT_NOUTNM2, /* negated output of counter channel
+ minus 2 (for channels 0 or 1,
+ channel minus 2 is channel 1 or 2 on
+ the preceding counter subdevice, for
+ the first counter subdevice the
+ preceding counter subdevice is the
+ last counter subdevice) */
+ AMPLC_DIO_GAT_RESERVED4,
+ AMPLC_DIO_GAT_RESERVED5,
+ AMPLC_DIO_GAT_RESERVED6,
+ AMPLC_DIO_GAT_RESERVED7,
+ /* the following are "enhanced" gate sources for PCIe models */
+ AMPLC_DIO_GAT_NGATN = 6, /* negated per channel gate input */
+ AMPLC_DIO_GAT_OUTNM2, /* non-negated output of counter
+ channel minus 2 */
+ AMPLC_DIO_GAT_PAT_PRESENT, /* "pattern present" signal */
+ AMPLC_DIO_GAT_PAT_OCCURRED, /* "pattern occurred" latched */
+ AMPLC_DIO_GAT_PAT_GONE, /* "pattern gone away" latched */
+ AMPLC_DIO_GAT_NPAT_PRESENT, /* negated "pattern present" */
+ AMPLC_DIO_GAT_NPAT_OCCURRED, /* negated "pattern occurred" */
+ AMPLC_DIO_GAT_NPAT_GONE /* negated "pattern gone away" */
+};
+
+/*
+ * Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
+ * the counter subdevice on the Kolter Electronic PCI-Counter board
+ * (ke_counter driver).
+ */
+enum ke_counter_clock_source {
+ KE_CLK_20MHZ, /* internal 20MHz (default) */
+ KE_CLK_4MHZ, /* internal 4MHz (option) */
+ KE_CLK_EXT /* external clock on pin 21 of D-Sub */
+};
+
+#endif /* _COMEDI_H */