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-rw-r--r--drivers/comedi/comedi.h1528
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diff --git a/drivers/comedi/comedi.h b/drivers/comedi/comedi.h
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+++ b/drivers/comedi/comedi.h
@@ -0,0 +1,1528 @@
+/* SPDX-License-Identifier: LGPL-2.0+ */
+/*
+ * comedi.h
+ * header file for COMEDI user API
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
+ */
+
+#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 0x04000000
+#define CR_DITHER CR_ALT_FILTER
+#define CR_DEGLITCH CR_ALT_FILTER
+#define CR_ALT_SOURCE 0x08000000
+#define CR_EDGE 0x40000000
+#define CR_INVERT 0x80000000
+
+#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_DEVICE_CONFIG (INSN_CONFIG | INSN_MASK_SPECIAL)
+#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)
+
+/* 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_PWM_COUNTER 0x0080 /* PWM can automatically switch off */
+#define SDF_PWM_HBRIDGE 0x0100 /* PWM is signed (H-bridge) */
+#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 */
+
+/* subdevice types */
+
+/**
+ * enum comedi_subdevice_type - COMEDI subdevice types
+ * @COMEDI_SUBD_UNUSED: Unused subdevice.
+ * @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 I/O.
+ * @COMEDI_SUBD_PWM: Pulse-Width Modulation output.
+ */
+enum comedi_subdevice_type {
+ COMEDI_SUBD_UNUSED,
+ COMEDI_SUBD_AI,
+ COMEDI_SUBD_AO,
+ COMEDI_SUBD_DI,
+ COMEDI_SUBD_DO,
+ COMEDI_SUBD_DIO,
+ COMEDI_SUBD_COUNTER,
+ COMEDI_SUBD_TIMER,
+ COMEDI_SUBD_MEMORY,
+ COMEDI_SUBD_CALIB,
+ COMEDI_SUBD_PROC,
+ COMEDI_SUBD_SERIAL,
+ COMEDI_SUBD_PWM
+};
+
+/* configuration instructions */
+
+/**
+ * enum comedi_io_direction - COMEDI I/O directions
+ * @COMEDI_INPUT: Input.
+ * @COMEDI_OUTPUT: Output.
+ * @COMEDI_OPENDRAIN: Open-drain (or open-collector) output.
+ *
+ * These are used by the %INSN_CONFIG_DIO_QUERY configuration instruction to
+ * report a direction. They may also be used in other places where a direction
+ * needs to be specified.
+ */
+enum comedi_io_direction {
+ COMEDI_INPUT = 0,
+ COMEDI_OUTPUT = 1,
+ COMEDI_OPENDRAIN = 2
+};
+
+/**
+ * enum configuration_ids - COMEDI configuration instruction codes
+ * @INSN_CONFIG_DIO_INPUT: Configure digital I/O as input.
+ * @INSN_CONFIG_DIO_OUTPUT: Configure digital I/O as output.
+ * @INSN_CONFIG_DIO_OPENDRAIN: Configure digital I/O as open-drain (or open
+ * collector) output.
+ * @INSN_CONFIG_ANALOG_TRIG: Configure analog trigger.
+ * @INSN_CONFIG_ALT_SOURCE: Configure alternate input source.
+ * @INSN_CONFIG_DIGITAL_TRIG: Configure digital trigger.
+ * @INSN_CONFIG_BLOCK_SIZE: Configure block size for DMA transfers.
+ * @INSN_CONFIG_TIMER_1: Configure divisor for external clock.
+ * @INSN_CONFIG_FILTER: Configure a filter.
+ * @INSN_CONFIG_CHANGE_NOTIFY: Configure change notification for digital
+ * inputs. (New drivers should use
+ * %INSN_CONFIG_DIGITAL_TRIG instead.)
+ * @INSN_CONFIG_SERIAL_CLOCK: Configure clock for serial I/O.
+ * @INSN_CONFIG_BIDIRECTIONAL_DATA: Send and receive byte over serial I/O.
+ * @INSN_CONFIG_DIO_QUERY: Query direction of digital I/O channel.
+ * @INSN_CONFIG_PWM_OUTPUT: Configure pulse-width modulator output.
+ * @INSN_CONFIG_GET_PWM_OUTPUT: Get pulse-width modulator output configuration.
+ * @INSN_CONFIG_ARM: Arm a subdevice or channel.
+ * @INSN_CONFIG_DISARM: Disarm a subdevice or channel.
+ * @INSN_CONFIG_GET_COUNTER_STATUS: Get counter status.
+ * @INSN_CONFIG_RESET: Reset a subdevice or channel.
+ * @INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR: Configure counter/timer as
+ * single pulse generator.
+ * @INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR: Configure counter/timer as
+ * pulse train generator.
+ * @INSN_CONFIG_GPCT_QUADRATURE_ENCODER: Configure counter as a quadrature
+ * encoder.
+ * @INSN_CONFIG_SET_GATE_SRC: Set counter/timer gate source.
+ * @INSN_CONFIG_GET_GATE_SRC: Get counter/timer gate source.
+ * @INSN_CONFIG_SET_CLOCK_SRC: Set counter/timer master clock source.
+ * @INSN_CONFIG_GET_CLOCK_SRC: Get counter/timer master clock source.
+ * @INSN_CONFIG_SET_OTHER_SRC: Set counter/timer "other" source.
+ * @INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE: Get size (in bytes) of subdevice's
+ * on-board FIFOs used during streaming
+ * input/output.
+ * @INSN_CONFIG_SET_COUNTER_MODE: Set counter/timer mode.
+ * @INSN_CONFIG_8254_SET_MODE: (Deprecated) Same as
+ * %INSN_CONFIG_SET_COUNTER_MODE.
+ * @INSN_CONFIG_8254_READ_STATUS: Read status of 8254 counter channel.
+ * @INSN_CONFIG_SET_ROUTING: Set routing for a channel.
+ * @INSN_CONFIG_GET_ROUTING: Get routing for a channel.
+ * @INSN_CONFIG_PWM_SET_PERIOD: Set PWM period in nanoseconds.
+ * @INSN_CONFIG_PWM_GET_PERIOD: Get PWM period in nanoseconds.
+ * @INSN_CONFIG_GET_PWM_STATUS: Get PWM status.
+ * @INSN_CONFIG_PWM_SET_H_BRIDGE: Set PWM H bridge duty cycle and polarity for
+ * a relay simultaneously.
+ * @INSN_CONFIG_PWM_GET_H_BRIDGE: Get PWM H bridge duty cycle and polarity.
+ * @INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS: Get the hardware timing restraints,
+ * regardless of trigger sources.
+ */
+enum configuration_ids {
+ INSN_CONFIG_DIO_INPUT = COMEDI_INPUT,
+ INSN_CONFIG_DIO_OUTPUT = COMEDI_OUTPUT,
+ INSN_CONFIG_DIO_OPENDRAIN = COMEDI_OPENDRAIN,
+ 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,
+ INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR = 1001,
+ INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR = 1002,
+ INSN_CONFIG_GPCT_QUADRATURE_ENCODER = 1003,
+ INSN_CONFIG_SET_GATE_SRC = 2001,
+ INSN_CONFIG_GET_GATE_SRC = 2002,
+ INSN_CONFIG_SET_CLOCK_SRC = 2003,
+ INSN_CONFIG_GET_CLOCK_SRC = 2004,
+ INSN_CONFIG_SET_OTHER_SRC = 2005,
+ INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE = 2006,
+ INSN_CONFIG_SET_COUNTER_MODE = 4097,
+ 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,
+ INSN_CONFIG_PWM_SET_PERIOD = 5000,
+ INSN_CONFIG_PWM_GET_PERIOD = 5001,
+ INSN_CONFIG_GET_PWM_STATUS = 5002,
+ INSN_CONFIG_PWM_SET_H_BRIDGE = 5003,
+ INSN_CONFIG_PWM_GET_H_BRIDGE = 5004,
+ INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS = 5005,
+};
+
+/**
+ * enum device_configuration_ids - COMEDI configuration instruction codes global
+ * to an entire device.
+ * @INSN_DEVICE_CONFIG_TEST_ROUTE: Validate the possibility of a
+ * globally-named route
+ * @INSN_DEVICE_CONFIG_CONNECT_ROUTE: Connect a globally-named route
+ * @INSN_DEVICE_CONFIG_DISCONNECT_ROUTE:Disconnect a globally-named route
+ * @INSN_DEVICE_CONFIG_GET_ROUTES: Get a list of all globally-named routes
+ * that are valid for a particular device.
+ */
+enum device_config_route_ids {
+ INSN_DEVICE_CONFIG_TEST_ROUTE = 0,
+ INSN_DEVICE_CONFIG_CONNECT_ROUTE = 1,
+ INSN_DEVICE_CONFIG_DISCONNECT_ROUTE = 2,
+ INSN_DEVICE_CONFIG_GET_ROUTES = 3,
+};
+
+/**
+ * enum comedi_digital_trig_op - operations for configuring a digital trigger
+ * @COMEDI_DIGITAL_TRIG_DISABLE: Return digital trigger to its default,
+ * inactive, unconfigured state.
+ * @COMEDI_DIGITAL_TRIG_ENABLE_EDGES: Set rising and/or falling edge inputs
+ * that each can fire the trigger.
+ * @COMEDI_DIGITAL_TRIG_ENABLE_LEVELS: Set a combination of high and/or low
+ * level inputs that can fire the trigger.
+ *
+ * These are used with the %INSN_CONFIG_DIGITAL_TRIG configuration instruction.
+ * The data for the configuration instruction is as follows...
+ *
+ * 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
+ *
+ * The trigger ID (data[%1]) is used to differentiate multiple digital triggers
+ * belonging to the same subdevice. The configuration operation (data[%2]) is
+ * one of the enum comedi_digital_trig_op values. The configuration
+ * parameters (data[%3], data[%4], and data[%5]) depend on the operation; they
+ * are not used with %COMEDI_DIGITAL_TRIG_DISABLE.
+ *
+ * For %COMEDI_DIGITAL_TRIG_ENABLE_EDGES and %COMEDI_DIGITAL_TRIG_ENABLE_LEVELS,
+ * configuration parameter 1 (data[%3]) contains a "left-shift" value that
+ * specifies the input corresponding to bit 0 of configuration parameters 2
+ * and 3. This is useful if the trigger has more than 32 inputs.
+ *
+ * For %COMEDI_DIGITAL_TRIG_ENABLE_EDGES, configuration parameter 2 (data[%4])
+ * specifies which of up to 32 inputs have rising-edge sensitivity, and
+ * configuration parameter 3 (data[%5]) specifies which of up to 32 inputs
+ * have falling-edge sensitivity that can fire the trigger.
+ *
+ * For %COMEDI_DIGITAL_TRIG_ENABLE_LEVELS, configuration parameter 2 (data[%4])
+ * specifies which of up to 32 inputs must be at a high level, and
+ * configuration parameter 3 (data[%5]) specifies which of up to 32 inputs
+ * must be at a low level for the trigger to fire.
+ *
+ * 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_support_level - support level for a COMEDI feature
+ * @COMEDI_UNKNOWN_SUPPORT: Unspecified support for feature.
+ * @COMEDI_SUPPORTED: Feature is supported.
+ * @COMEDI_UNSUPPORTED: Feature is unsupported.
+ */
+enum comedi_support_level {
+ COMEDI_UNKNOWN_SUPPORT = 0,
+ COMEDI_SUPPORTED,
+ COMEDI_UNSUPPORTED
+};
+
+/**
+ * enum comedi_counter_status_flags - counter status bits
+ * @COMEDI_COUNTER_ARMED: Counter is armed.
+ * @COMEDI_COUNTER_COUNTING: Counter is counting.
+ * @COMEDI_COUNTER_TERMINAL_COUNT: Counter reached terminal count.
+ *
+ * These bitwise values are used by the %INSN_CONFIG_GET_COUNTER_STATUS
+ * configuration instruction to report the status of a counter.
+ */
+enum comedi_counter_status_flags {
+ COMEDI_COUNTER_ARMED = 0x1,
+ COMEDI_COUNTER_COUNTING = 0x2,
+ COMEDI_COUNTER_TERMINAL_COUNT = 0x4,
+};
+
+/* 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)
+/* _IOWR(CIO, 4, ...) is reserved */
+#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_insn - COMEDI instruction
+ * @insn: COMEDI instruction type (%INSN_xxx).
+ * @n: Length of @data[].
+ * @data: Pointer to data array operated on by the instruction.
+ * @subdev: Subdevice index.
+ * @chanspec: A packed "chanspec" value consisting of channel number,
+ * analog range index, analog reference type, and flags.
+ * @unused: Reserved for future use.
+ *
+ * This is used with the %COMEDI_INSN ioctl, and indirectly with the
+ * %COMEDI_INSNLIST ioctl.
+ */
+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 - list of COMEDI instructions
+ * @n_insns: Number of COMEDI instructions.
+ * @insns: Pointer to array COMEDI instructions.
+ *
+ * This is used with the %COMEDI_INSNLIST ioctl.
+ */
+struct comedi_insnlist {
+ unsigned int n_insns;
+ struct comedi_insn __user *insns;
+};
+
+/**
+ * struct comedi_cmd - COMEDI asynchronous acquisition command details
+ * @subdev: Subdevice index.
+ * @flags: Command flags (%CMDF_xxx).
+ * @start_src: "Start acquisition" trigger source (%TRIG_xxx).
+ * @start_arg: "Start acquisition" trigger argument.
+ * @scan_begin_src: "Scan begin" trigger source.
+ * @scan_begin_arg: "Scan begin" trigger argument.
+ * @convert_src: "Convert" trigger source.
+ * @convert_arg: "Convert" trigger argument.
+ * @scan_end_src: "Scan end" trigger source.
+ * @scan_end_arg: "Scan end" trigger argument.
+ * @stop_src: "Stop acquisition" trigger source.
+ * @stop_arg: "Stop acquisition" trigger argument.
+ * @chanlist: Pointer to array of "chanspec" values, containing a
+ * sequence of channel numbers packed with analog range
+ * index, etc.
+ * @chanlist_len: Number of channels in sequence.
+ * @data: Pointer to miscellaneous set-up data (not used).
+ * @data_len: Length of miscellaneous set-up data.
+ *
+ * This is used with the %COMEDI_CMD or %COMEDI_CMDTEST ioctl to set-up
+ * or validate an asynchronous acquisition command. The ioctl may modify
+ * the &struct comedi_cmd and copy it back to the caller.
+ *
+ * Optional command @flags values that can be ORed together...
+ *
+ * %CMDF_BOGUS - makes %COMEDI_CMD ioctl return error %EAGAIN instead of
+ * starting the command.
+ *
+ * %CMDF_PRIORITY - requests "hard real-time" processing (which is not
+ * supported in this version of COMEDI).
+ *
+ * %CMDF_WAKE_EOS - requests the command makes data available for reading
+ * after every "scan" period.
+ *
+ * %CMDF_WRITE - marks the command as being in the "write" (to device)
+ * direction. This does not need to be specified by the caller unless the
+ * subdevice supports commands in either direction.
+ *
+ * %CMDF_RAWDATA - prevents the command from "munging" the data between the
+ * COMEDI sample format and the raw hardware sample format.
+ *
+ * %CMDF_ROUND_NEAREST - requests timing periods to be rounded to nearest
+ * supported values.
+ *
+ * %CMDF_ROUND_DOWN - requests timing periods to be rounded down to supported
+ * values (frequencies rounded up).
+ *
+ * %CMDF_ROUND_UP - requests timing periods to be rounded up to supported
+ * values (frequencies rounded down).
+ *
+ * Trigger source values for @start_src, @scan_begin_src, @convert_src,
+ * @scan_end_src, and @stop_src...
+ *
+ * %TRIG_ANY - "all ones" value used to test which trigger sources are
+ * supported.
+ *
+ * %TRIG_INVALID - "all zeroes" value used to indicate that all requested
+ * trigger sources are invalid.
+ *
+ * %TRIG_NONE - never trigger (often used as a @stop_src value).
+ *
+ * %TRIG_NOW - trigger after '_arg' nanoseconds.
+ *
+ * %TRIG_FOLLOW - trigger follows another event.
+ *
+ * %TRIG_TIMER - trigger every '_arg' nanoseconds.
+ *
+ * %TRIG_COUNT - trigger when count '_arg' is reached.
+ *
+ * %TRIG_EXT - trigger on external signal specified by '_arg'.
+ *
+ * %TRIG_INT - trigger on internal, software trigger specified by '_arg'.
+ *
+ * %TRIG_OTHER - trigger on other, driver-defined signal specified by '_arg'.
+ */
+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;
+ unsigned int chanlist_len;
+
+ short __user *data;
+ unsigned int data_len;
+};
+
+/**
+ * struct comedi_chaninfo - used to retrieve per-channel information
+ * @subdev: Subdevice index.
+ * @maxdata_list: Optional pointer to per-channel maximum data values.
+ * @flaglist: Optional pointer to per-channel flags.
+ * @rangelist: Optional pointer to per-channel range types.
+ * @unused: Reserved for future use.
+ *
+ * This is used with the %COMEDI_CHANINFO ioctl to get per-channel information
+ * for the subdevice. Use of this requires knowledge of the number of channels
+ * and subdevice flags obtained using the %COMEDI_SUBDINFO ioctl.
+ *
+ * The @maxdata_list member must be %NULL unless the %SDF_MAXDATA subdevice
+ * flag is set. The @flaglist member must be %NULL unless the %SDF_FLAGS
+ * subdevice flag is set. The @rangelist member must be %NULL unless the
+ * %SDF_RANGETYPE subdevice flag is set. Otherwise, the arrays they point to
+ * must be at least as long as the number of channels.
+ */
+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 - used to retrieve the range table for a channel
+ * @range_type: Encodes subdevice index (bits 27:24), channel index
+ * (bits 23:16) and range table length (bits 15:0).
+ * @range_ptr: Pointer to array of @struct comedi_krange to be filled
+ * in with the range table for the channel or subdevice.
+ *
+ * This is used with the %COMEDI_RANGEINFO ioctl to retrieve the range table
+ * for a specific channel (if the subdevice has the %SDF_RANGETYPE flag set to
+ * indicate that the range table depends on the channel), or for the subdevice
+ * as a whole (if the %SDF_RANGETYPE flag is clear, indicating the range table
+ * is shared by all channels).
+ *
+ * The @range_type value is an input to the ioctl and comes from a previous
+ * use of the %COMEDI_SUBDINFO ioctl (if the %SDF_RANGETYPE flag is clear),
+ * or the %COMEDI_CHANINFO ioctl (if the %SDF_RANGETYPE flag is set).
+ */
+struct comedi_rangeinfo {
+ unsigned int range_type;
+ void __user *range_ptr;
+};
+
+/**
+ * struct comedi_krange - describes a range in a range table
+ * @min: Minimum value in millionths (1e-6) of a unit.
+ * @max: Maximum value in millionths (1e-6) of a unit.
+ * @flags: Indicates the units (in bits 7:0) OR'ed with optional flags.
+ *
+ * A range table is associated with a single channel, or with all channels in a
+ * subdevice, and a list of one or more ranges. A %struct comedi_krange
+ * describes the physical range of units for one of those ranges. Sample
+ * values in COMEDI are unsigned from %0 up to some 'maxdata' value. The
+ * mapping from sample values to physical units is assumed to be nomimally
+ * linear (for the purpose of describing the range), with sample value %0
+ * mapping to @min, and the 'maxdata' sample value mapping to @max.
+ *
+ * The currently defined units are %UNIT_volt (%0), %UNIT_mA (%1), and
+ * %UNIT_none (%2). The @min and @max values are the physical range multiplied
+ * by 1e6, so a @max value of %1000000 (with %UNIT_volt) represents a maximal
+ * value of 1 volt.
+ *
+ * The only defined flag value is %RF_EXTERNAL (%0x100), indicating that the
+ * range needs to be multiplied by an external reference.
+ */
+struct comedi_krange {
+ int min;
+ int max;
+ unsigned int flags;
+};
+
+/**
+ * struct comedi_subdinfo - used to retrieve information about a subdevice
+ * @type: Type of subdevice from &enum comedi_subdevice_type.
+ * @n_chan: Number of channels the subdevice supports.
+ * @subd_flags: A mixture of static and dynamic flags describing
+ * aspects of the subdevice and its current state.
+ * @timer_type: Timer type. Always set to %5 ("nanosecond timer").
+ * @len_chanlist: Maximum length of a channel list if the subdevice
+ * supports asynchronous acquisition commands.
+ * @maxdata: Maximum sample value for all channels if the
+ * %SDF_MAXDATA subdevice flag is clear.
+ * @flags: Channel flags for all channels if the %SDF_FLAGS
+ * subdevice flag is clear.
+ * @range_type: The range type for all channels if the %SDF_RANGETYPE
+ * subdevice flag is clear. Encodes the subdevice index
+ * (bits 27:24), a dummy channel index %0 (bits 23:16),
+ * and the range table length (bits 15:0).
+ * @settling_time_0: Not used.
+ * @insn_bits_support: Set to %COMEDI_SUPPORTED if the subdevice supports the
+ * %INSN_BITS instruction, or to %COMEDI_UNSUPPORTED if it
+ * does not.
+ * @unused: Reserved for future use.
+ *
+ * This is used with the %COMEDI_SUBDINFO ioctl which copies an array of
+ * &struct comedi_subdinfo back to user space, with one element per subdevice.
+ * Use of this requires knowledge of the number of subdevices obtained from
+ * the %COMEDI_DEVINFO ioctl.
+ *
+ * These are the @subd_flags values that may be ORed together...
+ *
+ * %SDF_BUSY - the subdevice is busy processing an asynchronous command or a
+ * synchronous instruction.
+ *
+ * %SDF_BUSY_OWNER - the subdevice is busy processing an asynchronous
+ * acquisition command started on the current file object (the file object
+ * issuing the %COMEDI_SUBDINFO ioctl).
+ *
+ * %SDF_LOCKED - the subdevice is locked by a %COMEDI_LOCK ioctl.
+ *
+ * %SDF_LOCK_OWNER - the subdevice is locked by a %COMEDI_LOCK ioctl from the
+ * current file object.
+ *
+ * %SDF_MAXDATA - maximum sample values are channel-specific.
+ *
+ * %SDF_FLAGS - channel flags are channel-specific.
+ *
+ * %SDF_RANGETYPE - range types are channel-specific.
+ *
+ * %SDF_PWM_COUNTER - PWM can switch off automatically.
+ *
+ * %SDF_PWM_HBRIDGE - or PWM is signed (H-bridge).
+ *
+ * %SDF_CMD - the subdevice supports asynchronous commands.
+ *
+ * %SDF_SOFT_CALIBRATED - the subdevice uses software calibration.
+ *
+ * %SDF_CMD_WRITE - the subdevice supports asynchronous commands in the output
+ * ("write") direction.
+ *
+ * %SDF_CMD_READ - the subdevice supports asynchronous commands in the input
+ * ("read") direction.
+ *
+ * %SDF_READABLE - the subdevice is readable (e.g. analog input).
+ *
+ * %SDF_WRITABLE (aliased as %SDF_WRITEABLE) - the subdevice is writable (e.g.
+ * analog output).
+ *
+ * %SDF_INTERNAL - the subdevice has no externally visible lines.
+ *
+ * %SDF_GROUND - the subdevice can use ground as an analog reference.
+ *
+ * %SDF_COMMON - the subdevice can use a common analog reference.
+ *
+ * %SDF_DIFF - the subdevice can use differential inputs (or outputs).
+ *
+ * %SDF_OTHER - the subdevice can use some other analog reference.
+ *
+ * %SDF_DITHER - the subdevice can do dithering.
+ *
+ * %SDF_DEGLITCH - the subdevice can do deglitching.
+ *
+ * %SDF_MMAP - this is never set.
+ *
+ * %SDF_RUNNING - an asynchronous command is still running.
+ *
+ * %SDF_LSAMPL - the subdevice uses "long" (32-bit) samples (for asynchronous
+ * command data).
+ *
+ * %SDF_PACKED - the subdevice packs several DIO samples into a single sample
+ * (for asynchronous command data).
+ *
+ * No "channel flags" (@flags) values are currently defined.
+ */
+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;
+ unsigned int range_type;
+ unsigned int settling_time_0;
+ unsigned int insn_bits_support;
+ unsigned int unused[8];
+};
+
+/**
+ * struct comedi_devinfo - used to retrieve information about a COMEDI device
+ * @version_code: COMEDI version code.
+ * @n_subdevs: Number of subdevices the device has.
+ * @driver_name: Null-terminated COMEDI driver name.
+ * @board_name: Null-terminated COMEDI board name.
+ * @read_subdevice: Index of the current "read" subdevice (%-1 if none).
+ * @write_subdevice: Index of the current "write" subdevice (%-1 if none).
+ * @unused: Reserved for future use.
+ *
+ * This is used with the %COMEDI_DEVINFO ioctl to get basic information about
+ * the device.
+ */
+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 - used to configure a legacy COMEDI device
+ * @board_name: Null-terminated string specifying the type of board
+ * to configure.
+ * @options: An array of integer configuration options.
+ *
+ * This is used with the %COMEDI_DEVCONFIG ioctl to configure a "legacy" COMEDI
+ * device, such as an ISA card. Not all COMEDI drivers support this. Those
+ * that do either expect the specified board name to match one of a list of
+ * names registered with the COMEDI core, or expect the specified board name
+ * to match the COMEDI driver name itself. The configuration options are
+ * handled in a driver-specific manner.
+ */
+struct comedi_devconfig {
+ char board_name[COMEDI_NAMELEN];
+ int options[COMEDI_NDEVCONFOPTS];
+};
+
+/**
+ * struct comedi_bufconfig - used to set or get buffer size for a subdevice
+ * @subdevice: Subdevice index.
+ * @flags: Not used.
+ * @maximum_size: Maximum allowed buffer size.
+ * @size: Buffer size.
+ * @unused: Reserved for future use.
+ *
+ * This is used with the %COMEDI_BUFCONFIG ioctl to get or configure the
+ * maximum buffer size and current buffer size for a COMEDI subdevice that
+ * supports asynchronous commands. If the subdevice does not support
+ * asynchronous commands, @maximum_size and @size are ignored and set to 0.
+ *
+ * On ioctl input, non-zero values of @maximum_size and @size specify a
+ * new maximum size and new current size (in bytes), respectively. These
+ * will by rounded up to a multiple of %PAGE_SIZE. Specifying a new maximum
+ * size requires admin capabilities.
+ *
+ * On ioctl output, @maximum_size and @size and set to the current maximum
+ * buffer size and current buffer size, respectively.
+ */
+struct comedi_bufconfig {
+ unsigned int subdevice;
+ unsigned int flags;
+
+ unsigned int maximum_size;
+ unsigned int size;
+
+ unsigned int unused[4];
+};
+
+/**
+ * struct comedi_bufinfo - used to manipulate buffer position for a subdevice
+ * @subdevice: Subdevice index.
+ * @bytes_read: Specify amount to advance read position for an
+ * asynchronous command in the input ("read") direction.
+ * @buf_write_ptr: Current write position (index) within the buffer.
+ * @buf_read_ptr: Current read position (index) within the buffer.
+ * @buf_write_count: Total amount written, modulo 2^32.
+ * @buf_read_count: Total amount read, modulo 2^32.
+ * @bytes_written: Specify amount to advance write position for an
+ * asynchronous command in the output ("write") direction.
+ * @unused: Reserved for future use.
+ *
+ * This is used with the %COMEDI_BUFINFO ioctl to optionally advance the
+ * current read or write position in an asynchronous acquisition data buffer,
+ * and to get the current read and write positions in the buffer.
+ */
+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 0x100
+
+#define UNIT_volt 0
+#define UNIT_mA 1
+#define UNIT_none 2
+
+#define COMEDI_MIN_SPEED 0xffffffffu
+
+/**********************************************************/
+/* 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 */
+ /* Hardware triggered strobe (retriggerable) */
+ I8254_MODE5 = (5 << 1),
+ /* Use binary-coded decimal instead of binary (pretty useless) */
+ I8254_BCD = 1,
+ I8254_BINARY = 0
+};
+
+/* *** BEGIN GLOBALLY-NAMED NI TERMINALS/SIGNALS *** */
+
+/*
+ * Common National Instruments Terminal/Signal names.
+ * Some of these have no NI_ prefix as they are useful for non-NI hardware, such
+ * as those that utilize the PXI/RTSI trigger lines.
+ *
+ * NOTE ABOUT THE CHOICE OF NAMES HERE AND THE CAMELSCRIPT:
+ * The choice to use CamelScript and the exact names below is for
+ * maintainability, clarity, similarity to manufacturer's documentation,
+ * _and_ a mitigation for confusion that has plagued the use of these drivers
+ * for years!
+ *
+ * More detail:
+ * There have been significant confusions over the past many years for users
+ * when trying to understand how to connect to/from signals and terminals on
+ * NI hardware using comedi. The major reason for this is that the actual
+ * register values were exposed and required to be used by users. Several
+ * major reasons exist why this caused major confusion for users:
+ * 1) The register values are _NOT_ in user documentation, but rather in
+ * arcane locations, such as a few register programming manuals that are
+ * increasingly hard to find and the NI MHDDK (comments in example code).
+ * There is no one place to find the various valid values of the registers.
+ * 2) The register values are _NOT_ completely consistent. There is no way to
+ * gain any sense of intuition of which values, or even enums one should use
+ * for various registers. There was some attempt in prior use of comedi to
+ * name enums such that a user might know which enums should be used for
+ * varying purposes, but the end-user had to gain a knowledge of register
+ * values to correctly wield this approach.
+ * 3) The names for signals and registers found in the various register level
+ * programming manuals and vendor-provided documentation are _not_ even
+ * close to the same names that are in the end-user documentation.
+ *
+ * Similar, albeit less, confusion plagued NI's previous version of their own
+ * drivers. Earlier than 2003, NI greatly simplified the situation for users
+ * by releasing a new API that abstracted the names of signals/terminals to a
+ * common and intuitive set of names.
+ *
+ * The names below mirror the names chosen and well documented by NI. These
+ * names are exposed to the user via the comedilib user library. By keeping
+ * the names below, in spite of the use of CamelScript, maintenance will be
+ * greatly eased and confusion for users _and_ comedi developers will be
+ * greatly reduced.
+ */
+
+/*
+ * Base of abstracted NI names.
+ * The first 16 bits of *_arg are reserved for channel selection.
+ * Since we only actually need the first 4 or 5 bits for all register values on
+ * NI select registers anyways, we'll identify all values >= (1<<15) as being an
+ * abstracted NI signal/terminal name.
+ * These values are also used/returned by INSN_DEVICE_CONFIG_TEST_ROUTE,
+ * INSN_DEVICE_CONFIG_CONNECT_ROUTE, INSN_DEVICE_CONFIG_DISCONNECT_ROUTE,
+ * and INSN_DEVICE_CONFIG_GET_ROUTES.
+ */
+#define NI_NAMES_BASE 0x8000u
+
+#define _TERM_N(base, n, x) ((base) + ((x) & ((n) - 1)))
+
+/*
+ * not necessarily all allowed 64 PFIs are valid--certainly not for all devices
+ */
+#define NI_PFI(x) _TERM_N(NI_NAMES_BASE, 64, x)
+/* 8 trigger lines by standard, Some devices cannot talk to all eight. */
+#define TRIGGER_LINE(x) _TERM_N(NI_PFI(-1) + 1, 8, x)
+/* 4 RTSI shared MUXes to route signals to/from TRIGGER_LINES on NI hardware */
+#define NI_RTSI_BRD(x) _TERM_N(TRIGGER_LINE(-1) + 1, 4, x)
+
+/* *** Counter/timer names : 8 counters max *** */
+#define NI_MAX_COUNTERS 8
+#define NI_COUNTER_NAMES_BASE (NI_RTSI_BRD(-1) + 1)
+#define NI_CtrSource(x) _TERM_N(NI_COUNTER_NAMES_BASE, NI_MAX_COUNTERS, x)
+/* Gate, Aux, A,B,Z are all treated, at times as gates */
+#define NI_GATES_NAMES_BASE (NI_CtrSource(-1) + 1)
+#define NI_CtrGate(x) _TERM_N(NI_GATES_NAMES_BASE, NI_MAX_COUNTERS, x)
+#define NI_CtrAux(x) _TERM_N(NI_CtrGate(-1) + 1, NI_MAX_COUNTERS, x)
+#define NI_CtrA(x) _TERM_N(NI_CtrAux(-1) + 1, NI_MAX_COUNTERS, x)
+#define NI_CtrB(x) _TERM_N(NI_CtrA(-1) + 1, NI_MAX_COUNTERS, x)
+#define NI_CtrZ(x) _TERM_N(NI_CtrB(-1) + 1, NI_MAX_COUNTERS, x)
+#define NI_GATES_NAMES_MAX NI_CtrZ(-1)
+#define NI_CtrArmStartTrigger(x) _TERM_N(NI_CtrZ(-1) + 1, NI_MAX_COUNTERS, x)
+#define NI_CtrInternalOutput(x) \
+ _TERM_N(NI_CtrArmStartTrigger(-1) + 1, NI_MAX_COUNTERS, x)
+/** external pin(s) labeled conveniently as Ctr<i>Out. */
+#define NI_CtrOut(x) _TERM_N(NI_CtrInternalOutput(-1) + 1, NI_MAX_COUNTERS, x)
+/** For Buffered sampling of ctr -- x series capability. */
+#define NI_CtrSampleClock(x) _TERM_N(NI_CtrOut(-1) + 1, NI_MAX_COUNTERS, x)
+#define NI_COUNTER_NAMES_MAX NI_CtrSampleClock(-1)
+
+enum ni_common_signal_names {
+ /* PXI_Star: this is a non-NI-specific signal */
+ PXI_Star = NI_COUNTER_NAMES_MAX + 1,
+ PXI_Clk10,
+ PXIe_Clk100,
+ NI_AI_SampleClock,
+ NI_AI_SampleClockTimebase,
+ NI_AI_StartTrigger,
+ NI_AI_ReferenceTrigger,
+ NI_AI_ConvertClock,
+ NI_AI_ConvertClockTimebase,
+ NI_AI_PauseTrigger,
+ NI_AI_HoldCompleteEvent,
+ NI_AI_HoldComplete,
+ NI_AI_ExternalMUXClock,
+ NI_AI_STOP, /* pulse signal that occurs when a update is finished(?) */
+ NI_AO_SampleClock,
+ NI_AO_SampleClockTimebase,
+ NI_AO_StartTrigger,
+ NI_AO_PauseTrigger,
+ NI_DI_SampleClock,
+ NI_DI_SampleClockTimebase,
+ NI_DI_StartTrigger,
+ NI_DI_ReferenceTrigger,
+ NI_DI_PauseTrigger,
+ NI_DI_InputBufferFull,
+ NI_DI_ReadyForStartEvent,
+ NI_DI_ReadyForTransferEventBurst,
+ NI_DI_ReadyForTransferEventPipelined,
+ NI_DO_SampleClock,
+ NI_DO_SampleClockTimebase,
+ NI_DO_StartTrigger,
+ NI_DO_PauseTrigger,
+ NI_DO_OutputBufferFull,
+ NI_DO_DataActiveEvent,
+ NI_DO_ReadyForStartEvent,
+ NI_DO_ReadyForTransferEvent,
+ NI_MasterTimebase,
+ NI_20MHzTimebase,
+ NI_80MHzTimebase,
+ NI_100MHzTimebase,
+ NI_200MHzTimebase,
+ NI_100kHzTimebase,
+ NI_10MHzRefClock,
+ NI_FrequencyOutput,
+ NI_ChangeDetectionEvent,
+ NI_AnalogComparisonEvent,
+ NI_WatchdogExpiredEvent,
+ NI_WatchdogExpirationTrigger,
+ NI_SCXI_Trig1,
+ NI_LogicLow,
+ NI_LogicHigh,
+ NI_ExternalStrobe,
+ NI_PFI_DO,
+ NI_CaseGround,
+ /* special internal signal used as variable source for RTSI bus: */
+ NI_RGOUT0,
+
+ /* just a name to make the next more convenient, regardless of above */
+ _NI_NAMES_MAX_PLUS_1,
+ NI_NUM_NAMES = _NI_NAMES_MAX_PLUS_1 - NI_NAMES_BASE,
+};
+
+/* *** END GLOBALLY-NAMED NI TERMINALS/SIGNALS *** */
+
+#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,
+ /*
+ * Start both the counter and the adjacent paired counter simultaneously
+ */
+ NI_GPCT_ARM_PAIRED_IMMEDIATE = 0x1,
+ /*
+ * If the NI_GPCT_HW_ARM bit is set, we will pass the least significant
+ * bits (3 bits for 660x or 5 bits for m-series) through to the
+ * hardware. To select a hardware trigger, pass the appropriate select
+ * bit, e.g.,
+ * NI_GPCT_HW_ARM | NI_GPCT_AI_START1_GATE_SELECT or
+ * NI_GPCT_HW_ARM | NI_GPCT_PFI_GATE_SELECT(pfi_number)
+ */
+ NI_GPCT_HW_ARM = 0x1000,
+ NI_GPCT_ARM_UNKNOWN = NI_GPCT_HW_ARM, /* for backward compatibility */
+};
+
+/* 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,
+ /*
+ * Doesn't work for m-series, use NI_MIO_PLL_RTSI_CLOCK()
+ * the NI_MIO_PLL_* sources are m-series only
+ */
+ NI_MIO_RTSI_CLOCK = 1,
+ 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,
+ /* Pre-m-series always have RTSI clock on line 7 */
+ NI_RTSI_OUTPUT_RTSI_OSC = 12
+};
+
+#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)
+
+/*
+ * 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 {
+ /*
+ * 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_CLKN,
+ 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 */
+ /*
+ * 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_OUTNM1,
+ 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 */
+ /*
+ * 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_NOUTNM2,
+ 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 */
+ /* non-negated output of counter channel minus 2 */
+ AMPLC_DIO_GAT_OUTNM2,
+ 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 */