staging: comedi: clarify/unify macros for NI macro-defined terminals

 * 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)	(NI_NAMES_BASE        + ((x) & 0x3f))

#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)	(NI_PFI(-1)       + 1 + ((x) & 0x7))

#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)	(TRIGGER_LINE(-1) + 1 + ((x) & 0x3))

#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_MAX_COUNTERS	       7

#define NI_CtrSource(x)	       (NI_COUNTER_NAMES_BASE + ((x) & NI_MAX_COUNTERS))

#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)	       (NI_GATES_NAMES_BASE   + ((x) & NI_MAX_COUNTERS))

#define NI_CtrAux(x)	       (NI_CtrGate(-1)   + 1  + ((x) & NI_MAX_COUNTERS))

#define NI_CtrA(x)	       (NI_CtrAux(-1)    + 1  + ((x) & NI_MAX_COUNTERS))

#define NI_CtrB(x)	       (NI_CtrA(-1)      + 1  + ((x) & NI_MAX_COUNTERS))

#define NI_CtrZ(x)	       (NI_CtrB(-1)      + 1  + ((x) & NI_MAX_COUNTERS))

#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) (NI_CtrZ(-1)    + 1  + ((x) & NI_MAX_COUNTERS))

#define NI_CtrArmStartTrigger(x) _TERM_N(NI_CtrZ(-1)    + 1, NI_MAX_COUNTERS, x)

#define NI_CtrInternalOutput(x) \

		     (NI_CtrArmStartTrigger(-1)  + 1  + ((x) & NI_MAX_COUNTERS))

		      _TERM_N(NI_CtrArmStartTrigger(-1) + 1, NI_MAX_COUNTERS, x)

/** external pin(s) labeled conveniently as Ctr<i>Out. */

#define NI_CtrOut(x)  (NI_CtrInternalOutput(-1)  + 1  + ((x) & NI_MAX_COUNTERS))

#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)	(NI_CtrOut(-1)   + 1  + ((x) & NI_MAX_COUNTERS))

#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 {