From 9a1ec4eb6f3722a65a267bb7d14c371d73f66c5b Mon Sep 17 00:00:00 2001 From: "Spencer E. Olson" Date: Wed, 24 Oct 2018 08:46:59 -0600 Subject: staging: comedi: ni_mio_common: scale ao INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS Fixes implementation of INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS for ni_mio devices. The previous patch should have used the channel information passed in to scale the result by the number of channels being used. Fixes: 51fd36738383 ("staging: comedi: ni_mio_common: implement INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS") Signed-off-by: Spencer E. Olson Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/ni_mio_common.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/staging/comedi') diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 2d1e0325d04d..5edf59ac6706 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -2843,7 +2843,8 @@ static int ni_ao_insn_config(struct comedi_device *dev, return ni_ao_arm(dev, s); case INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS: /* we don't care about actual channels */ - data[1] = board->ao_speed; + /* data[3] : chanlist_len */ + data[1] = board->ao_speed * data[3]; data[2] = 0; return 0; default: -- cgit v1.2.3 From 4dc2a3cd27856531cf92762fea2eb9468efe552f Mon Sep 17 00:00:00 2001 From: "Spencer E. Olson" Date: Wed, 24 Oct 2018 08:33:40 -0600 Subject: staging: comedi: clarify/unify macros for NI macro-defined terminals Uses a single macro to define multiple macros that represent a series of terminals for NI devices. This patch also redefines NI_MAX_COUNTERS as the maximum number of counters possible on NI devices (instead of the maximum index of the counters). This was a little confusing and caused a bug in commit 347e244884c3b ("staging: comedi: tio: implement global tio/ctr routing") when setting/reading registers for counter terminals. Fixes: 347e244884c3b ("staging: comedi: tio: implement global tio/ctr routing") Signed-off-by: Spencer E. Olson Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/comedi.h | 39 +++++++++++++++++++++------------------ 1 file changed, 21 insertions(+), 18 deletions(-) (limited to 'drivers/staging/comedi') diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h index e90b17775284..09a940066c0e 100644 --- a/drivers/staging/comedi/comedi.h +++ b/drivers/staging/comedi/comedi.h @@ -1005,35 +1005,38 @@ enum i8254_mode { * 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_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_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) (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_GATES_NAMES_MAX NI_CtrZ(-1) -#define NI_CtrArmStartTrigger(x) (NI_CtrZ(-1) + 1 + ((x) & NI_MAX_COUNTERS)) +#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) \ - (NI_CtrArmStartTrigger(-1) + 1 + ((x) & NI_MAX_COUNTERS)) + _TERM_N(NI_CtrArmStartTrigger(-1) + 1, NI_MAX_COUNTERS, x) /** external pin(s) labeled conveniently as CtrOut. */ -#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_COUNTER_NAMES_MAX NI_CtrSampleClock(-1) +#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 */ -- cgit v1.2.3