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comedi.h
/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */ /* * 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 */
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