mbed official
mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: targets/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_lesense.c
- Revision:
- 179:b0033dcd6934
- Parent:
- 161:2cc1468da177
--- a/targets/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_lesense.c Thu Nov 23 11:57:25 2017 +0000
+++ b/targets/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_lesense.c Thu Dec 07 14:01:42 2017 +0000
@@ -1,9 +1,9 @@
/***************************************************************************//**
* @file em_lesense.c
* @brief Low Energy Sensor (LESENSE) Peripheral API
- * @version 5.1.2
+ * @version 5.3.3
*******************************************************************************
- * @section License
+ * # License
* <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b>
*******************************************************************************
*
@@ -79,7 +79,6 @@
************************** LOCAL FUNCTIONS ********************************
******************************************************************************/
-
/*******************************************************************************
************************** GLOBAL FUNCTIONS *******************************
******************************************************************************/
@@ -124,8 +123,7 @@
#endif
/* Reset LESENSE registers if requested. */
- if (reqReset)
- {
+ if (reqReset) {
LESENSE_Reset();
}
@@ -166,27 +164,32 @@
* Set DAC0 and DAC1 data source, conversion mode, output mode. Set DAC
* prescaler and reference. Set ACMP0 and ACMP1 control mode. Set ACMP and DAC
* duty cycle (warm up) mode. */
- LESENSE->PERCTRL =
- ((uint32_t)init->perCtrl.dacCh0Data << _LESENSE_PERCTRL_DACCH0DATA_SHIFT)
- | ((uint32_t)init->perCtrl.dacCh1Data << _LESENSE_PERCTRL_DACCH1DATA_SHIFT)
+ LESENSE->PERCTRL = 0
+#if defined(_LESENSE_PERCTRL_DACCH0EN_MASK)
+ | ((uint32_t)init->perCtrl.dacCh0En << _LESENSE_PERCTRL_DACCH0EN_SHIFT)
+ | ((uint32_t)init->perCtrl.dacCh1En << _LESENSE_PERCTRL_DACCH1EN_SHIFT)
+#endif
+ | ((uint32_t)init->perCtrl.dacCh0Data << _LESENSE_PERCTRL_DACCH0DATA_SHIFT)
+ | ((uint32_t)init->perCtrl.dacCh1Data << _LESENSE_PERCTRL_DACCH1DATA_SHIFT)
#if defined(_LESENSE_PERCTRL_DACCH0CONV_MASK)
- | ((uint32_t)init->perCtrl.dacCh0ConvMode << _LESENSE_PERCTRL_DACCH0CONV_SHIFT)
- | ((uint32_t)init->perCtrl.dacCh0OutMode << _LESENSE_PERCTRL_DACCH0OUT_SHIFT)
- | ((uint32_t)init->perCtrl.dacCh1ConvMode << _LESENSE_PERCTRL_DACCH1CONV_SHIFT)
- | ((uint32_t)init->perCtrl.dacCh1OutMode << _LESENSE_PERCTRL_DACCH1OUT_SHIFT)
- | ((uint32_t)init->perCtrl.dacPresc << _LESENSE_PERCTRL_DACPRESC_SHIFT)
- | (uint32_t)init->perCtrl.dacRef
-#endif
- | ((uint32_t)init->perCtrl.acmp0Mode << _LESENSE_PERCTRL_ACMP0MODE_SHIFT)
- | ((uint32_t)init->perCtrl.acmp1Mode << _LESENSE_PERCTRL_ACMP1MODE_SHIFT)
-#if defined(_LESENSE_PERCTRL_ACMP0INV_MASK)
- | ((uint32_t)init->coreCtrl.invACMP0 << _LESENSE_PERCTRL_ACMP0INV_SHIFT)
- | ((uint32_t)init->coreCtrl.invACMP1 << _LESENSE_PERCTRL_ACMP1INV_SHIFT)
+ | ((uint32_t)init->perCtrl.dacCh0ConvMode << _LESENSE_PERCTRL_DACCH0CONV_SHIFT)
+ | ((uint32_t)init->perCtrl.dacCh0OutMode << _LESENSE_PERCTRL_DACCH0OUT_SHIFT)
+ | ((uint32_t)init->perCtrl.dacCh1ConvMode << _LESENSE_PERCTRL_DACCH1CONV_SHIFT)
+ | ((uint32_t)init->perCtrl.dacCh1OutMode << _LESENSE_PERCTRL_DACCH1OUT_SHIFT)
+ | ((uint32_t)init->perCtrl.dacPresc << _LESENSE_PERCTRL_DACPRESC_SHIFT)
+ | (uint32_t)init->perCtrl.dacRef
#endif
#if defined(_LESENSE_PERCTRL_DACCONVTRIG_MASK)
- | ((uint32_t)init->perCtrl.dacScan << _LESENSE_PERCTRL_DACCONVTRIG_SHIFT)
+ | ((uint32_t)init->perCtrl.dacStartupHalf << _LESENSE_PERCTRL_DACSTARTUP_SHIFT)
+ | ((uint32_t)init->perCtrl.dacScan << _LESENSE_PERCTRL_DACCONVTRIG_SHIFT)
#endif
- | (uint32_t)init->perCtrl.warmupMode;
+ | ((uint32_t)init->perCtrl.acmp0Mode << _LESENSE_PERCTRL_ACMP0MODE_SHIFT)
+ | ((uint32_t)init->perCtrl.acmp1Mode << _LESENSE_PERCTRL_ACMP1MODE_SHIFT)
+#if defined(_LESENSE_PERCTRL_ACMP0INV_MASK)
+ | ((uint32_t)init->coreCtrl.invACMP0 << _LESENSE_PERCTRL_ACMP0INV_SHIFT)
+ | ((uint32_t)init->coreCtrl.invACMP1 << _LESENSE_PERCTRL_ACMP1INV_SHIFT)
+#endif
+ | (uint32_t)init->perCtrl.warmupMode;
/* LESENSE decoder general control configuration.
* Set decoder input source, select PRS input for decoder bits.
@@ -217,7 +220,6 @@
LESENSE->BIASCTRL = (uint32_t)init->coreCtrl.biasMode;
}
-
/***************************************************************************//**
* @brief
* Set scan frequency for periodic scanning.
@@ -252,11 +254,9 @@
uint32_t pcTop = 63UL; /* Period counter top value (max. 63). */
uint32_t calcScanFreq; /* Variable for testing the calculation algorithm. */
-
/* If refFreq is set to 0, the currently configured reference clock is
* assumed. */
- if (!refFreq)
- {
+ if (!refFreq) {
refFreq = CMU_ClockFreqGet(cmuClock_LESENSE);
}
@@ -272,8 +272,7 @@
* biggest possible resolution for setting scan frequency.
* Maximum number of calculation cycles is 7 (value of lesenseClkDiv_128). */
while ((refFreq / ((uint32_t)scanFreq * clkDiv) > (pcTop + 1UL))
- && (pcPresc < lesenseClkDiv_128))
- {
+ && (pcPresc < lesenseClkDiv_128)) {
++pcPresc;
clkDiv = (uint32_t)1UL << pcPresc;
}
@@ -299,7 +298,6 @@
return calcScanFreq;
}
-
/***************************************************************************//**
* @brief
* Set scan mode of the LESENSE channels.
@@ -331,7 +329,6 @@
{
uint32_t tmp; /* temporary storage of the CTRL register value */
-
/* Save the CTRL register value to tmp.
* Please be aware the effects of the non-atomic Read-Modify-Write cycle! */
tmp = LESENSE->CTRL & ~(_LESENSE_CTRL_SCANMODE_MASK);
@@ -343,13 +340,11 @@
LESENSE->CTRL = tmp;
/* Start sensor scanning if requested. */
- if (start)
- {
+ if (start) {
LESENSE_ScanStart();
}
}
-
/***************************************************************************//**
* @brief
* Set start delay of sensor interaction on each channel.
@@ -372,7 +367,6 @@
{
uint32_t tmp; /* temporary storage of the TIMCTRL register value */
-
/* Sanity check of startDelay. */
EFM_ASSERT(startDelay < 4U);
@@ -386,7 +380,6 @@
LESENSE->TIMCTRL = tmp;
}
-
/***************************************************************************//**
* @brief
* Set clock division for LESENSE timers.
@@ -416,10 +409,8 @@
{
uint32_t tmp;
-
/* Select clock to prescale */
- switch (clk)
- {
+ switch (clk) {
case lesenseClkHF:
/* Sanity check of clock divisor for HF clock. */
EFM_ASSERT((uint32_t)clkDiv <= lesenseClkDiv_8);
@@ -451,7 +442,6 @@
}
}
-
/***************************************************************************//**
* @brief
* Configure all (16) LESENSE sensor channels.
@@ -478,14 +468,12 @@
uint32_t i;
/* Iterate through all the 16 channels */
- for (i = 0U; i < LESENSE_NUM_CHANNELS; ++i)
- {
+ for (i = 0U; i < LESENSE_NUM_CHANNELS; ++i) {
/* Configure scan channels. */
LESENSE_ChannelConfig(&confChAll->Ch[i], i);
}
}
-
/***************************************************************************//**
* @brief
* Configure a single LESENSE sensor channel.
@@ -513,7 +501,6 @@
{
uint32_t tmp; /* Service variable. */
-
/* Sanity check of configuration parameters */
EFM_ASSERT(chIdx < LESENSE_NUM_CHANNELS);
EFM_ASSERT(confCh->exTime <= (_LESENSE_CH_TIMING_EXTIME_MASK >> _LESENSE_CH_TIMING_EXTIME_SHIFT));
@@ -527,8 +514,7 @@
* configuration parameters, check the parameter description of acmpThres for
* for more details! */
EFM_ASSERT(confCh->acmpThres < 4096U);
- if (confCh->chPinExMode == lesenseChPinExDACOut)
- {
+ if (confCh->chPinExMode == lesenseChPinExDACOut) {
EFM_ASSERT((0x1 << chIdx) & DACOUT_SUPPORT);
}
@@ -563,25 +549,25 @@
* alternate excitation usage and interrupt mode on scan channel chIdx in
* LESENSE_CHchIdx_INTERACT. */
LESENSE->CH[chIdx].INTERACT =
- ((uint32_t)confCh->exClk << _LESENSE_CH_INTERACT_EXCLK_SHIFT)
- | ((uint32_t)confCh->sampleClk << _LESENSE_CH_INTERACT_SAMPLECLK_SHIFT)
- | (uint32_t)confCh->sampleMode
- | (uint32_t)confCh->intMode
- | (uint32_t)confCh->chPinExMode
- | ((uint32_t)confCh->useAltEx << _LESENSE_CH_INTERACT_ALTEX_SHIFT);
+ ((uint32_t)confCh->exClk << _LESENSE_CH_INTERACT_EXCLK_SHIFT)
+ | ((uint32_t)confCh->sampleClk << _LESENSE_CH_INTERACT_SAMPLECLK_SHIFT)
+ | (uint32_t)confCh->sampleMode
+ | (uint32_t)confCh->intMode
+ | (uint32_t)confCh->chPinExMode
+ | ((uint32_t)confCh->useAltEx << _LESENSE_CH_INTERACT_ALTEX_SHIFT);
/* Configure channel specific counter comparison mode, optional result
* forwarding to decoder, optional counter value storing and optional result
* inverting on scan channel chIdx in LESENSE_CHchIdx_EVAL. */
LESENSE->CH[chIdx].EVAL =
- (uint32_t)confCh->compMode
- | ((uint32_t)confCh->shiftRes << _LESENSE_CH_EVAL_DECODE_SHIFT)
- | ((uint32_t)confCh->storeCntRes << _LESENSE_CH_EVAL_STRSAMPLE_SHIFT)
- | ((uint32_t)confCh->invRes << _LESENSE_CH_EVAL_SCANRESINV_SHIFT)
+ (uint32_t)confCh->compMode
+ | ((uint32_t)confCh->shiftRes << _LESENSE_CH_EVAL_DECODE_SHIFT)
+ | ((uint32_t)confCh->storeCntRes << _LESENSE_CH_EVAL_STRSAMPLE_SHIFT)
+ | ((uint32_t)confCh->invRes << _LESENSE_CH_EVAL_SCANRESINV_SHIFT)
#if defined(_LESENSE_CH_EVAL_MODE_MASK)
- | ((uint32_t)confCh->evalMode << _LESENSE_CH_EVAL_MODE_SHIFT)
+ | ((uint32_t)confCh->evalMode << _LESENSE_CH_EVAL_MODE_SHIFT)
#endif
- ;
+ ;
/* Configure analog comparator (ACMP) threshold and decision threshold for
* counter separately with the function provided for that. */
@@ -599,7 +585,6 @@
BUS_RegBitWrite(&LESENSE->CHEN, chIdx, confCh->enaScanCh);
}
-
/***************************************************************************//**
* @brief
* Configure the LESENSE alternate excitation modes.
@@ -622,7 +607,6 @@
uint32_t i;
uint32_t tmp;
-
/* Configure alternate excitation mapping.
* Atomic read-modify-write using BUS_RegBitWrite function in order to
* support reconfiguration during LESENSE operation. */
@@ -630,12 +614,10 @@
_LESENSE_CTRL_ALTEXMAP_SHIFT,
confAltEx->altExMap);
- switch (confAltEx->altExMap)
- {
+ switch (confAltEx->altExMap) {
case lesenseAltExMapALTEX:
/* Iterate through the 8 possible alternate excitation pin descriptors. */
- for (i = 0U; i < 8U; ++i)
- {
+ for (i = 0U; i < 8U; ++i) {
/* Enable/disable alternate excitation pin i.
* Atomic read-modify-write using BUS_RegBitWrite function in order to
* support reconfiguration during LESENSE operation. */
@@ -663,8 +645,7 @@
case lesenseAltExMapCH:
#endif
/* Iterate through all the 16 alternate excitation channels */
- for (i = 0U; i < 16U; ++i)
- {
+ for (i = 0U; i < 16U; ++i) {
/* Enable/disable alternate ACMP excitation channel pin i. */
/* Atomic read-modify-write using BUS_RegBitWrite function in order to
* support reconfiguration during LESENSE operation. */
@@ -680,7 +661,6 @@
}
}
-
/***************************************************************************//**
* @brief
* Enable/disable LESENSE scan channel and the pin assigned to it.
@@ -719,7 +699,6 @@
BUS_RegBitWrite(&LESENSE->CHEN, chIdx, enaScanCh);
}
-
/***************************************************************************//**
* @brief
* Enable/disable LESENSE scan channel and the pin assigned to it.
@@ -750,7 +729,6 @@
GENERIC_LESENSE_ROUTE = pinMask;
}
-
/***************************************************************************//**
* @brief
* Set LESENSE channel timing parameters.
@@ -795,12 +773,11 @@
/* Channel specific timing configuration on scan channel chIdx.
* Setting excitation time, sampling delay, measurement delay. */
LESENSE->CH[chIdx].TIMING =
- ((uint32_t)exTime << _LESENSE_CH_TIMING_EXTIME_SHIFT)
- | ((uint32_t)sampleDelay << _LESENSE_CH_TIMING_SAMPLEDLY_SHIFT)
- | ((uint32_t)measDelay << _LESENSE_CH_TIMING_MEASUREDLY_SHIFT);
+ ((uint32_t)exTime << _LESENSE_CH_TIMING_EXTIME_SHIFT)
+ | ((uint32_t)sampleDelay << _LESENSE_CH_TIMING_SAMPLEDLY_SHIFT)
+ | ((uint32_t)measDelay << _LESENSE_CH_TIMING_MEASUREDLY_SHIFT);
}
-
/***************************************************************************//**
* @brief
* Set LESENSE channel threshold parameters.
@@ -840,7 +817,6 @@
{
uint32_t tmp; /* temporary storage */
-
/* Sanity check for acmpThres only, cntThres is 16bit value. */
EFM_ASSERT(acmpThres < 4096U);
/* Sanity check for LESENSE channel id. */
@@ -1001,14 +977,12 @@
uint32_t i;
/* Iterate through all the 16 or 32 decoder states. */
- for (i = 0U; i < LESENSE_NUM_DECODER_STATES; ++i)
- {
+ for (i = 0U; i < LESENSE_NUM_DECODER_STATES; ++i) {
/* Configure decoder state i. */
LESENSE_DecoderStateConfig(&confDecStAll->St[i], i);
}
}
-
/***************************************************************************//**
* @brief
* Configure a single LESENSE decoder state.
@@ -1052,14 +1026,13 @@
* Setting sensor compare value, sensor mask, next state index, transition
* action and interrupt flag option configurations. */
LESENSE->ST[decSt].TCONFB =
- (uint32_t)confDecSt->confB.prsAct
+ (uint32_t)confDecSt->confB.prsAct
| ((uint32_t)confDecSt->confB.compMask << _LESENSE_ST_TCONFB_MASK_SHIFT)
| ((uint32_t)confDecSt->confB.compVal << _LESENSE_ST_TCONFB_COMP_SHIFT)
| ((uint32_t)confDecSt->confB.nextState << _LESENSE_ST_TCONFB_NEXTSTATE_SHIFT)
| ((uint32_t)confDecSt->confB.setInt << _LESENSE_ST_TCONFB_SETIF_SHIFT);
}
-
/***************************************************************************//**
* @brief
* Set LESENSE decoder state.
@@ -1083,7 +1056,6 @@
LESENSE->DECSTATE = decSt & _LESENSE_DECSTATE_DECSTATE_MASK;
}
-
/***************************************************************************//**
* @brief
* Get the current state of the LESENSE decoder.
@@ -1149,7 +1121,6 @@
;
}
-
/***************************************************************************//**
* @brief
* Stop scanning of sensors.
@@ -1182,7 +1153,6 @@
;
}
-
/***************************************************************************//**
* @brief
* Start LESENSE decoder.
@@ -1212,7 +1182,6 @@
;
}
-
/***************************************************************************//**
* @brief
* Clear result buffer.
@@ -1241,7 +1210,6 @@
;
}
-
/***************************************************************************//**
* @brief
* Reset the LESENSE module.
@@ -1297,16 +1265,14 @@
#endif
/* Reset all channel configuration registers */
- for (i = 0U; i < LESENSE_NUM_CHANNELS; ++i)
- {
+ for (i = 0U; i < LESENSE_NUM_CHANNELS; ++i) {
LESENSE->CH[i].TIMING = _LESENSE_CH_TIMING_RESETVALUE;
LESENSE->CH[i].INTERACT = _LESENSE_CH_INTERACT_RESETVALUE;
LESENSE->CH[i].EVAL = _LESENSE_CH_EVAL_RESETVALUE;
}
/* Reset all decoder state configuration registers */
- for (i = 0U; i < LESENSE_NUM_DECODER_STATES; ++i)
- {
+ for (i = 0U; i < LESENSE_NUM_DECODER_STATES; ++i) {
LESENSE->ST[i].TCONFA = _LESENSE_ST_TCONFA_RESETVALUE;
LESENSE->ST[i].TCONFB = _LESENSE_ST_TCONFB_RESETVALUE;
}
@@ -1317,7 +1283,6 @@
;
}
-
/** @} (end addtogroup LESENSE) */
/** @} (end addtogroup emlib) */
