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authorDominik Sliwa <dominik.sliwa@toradex.com>2018-10-30 16:31:29 +0100
committerDominik Sliwa <dominik.sliwa@toradex.com>2018-10-31 11:54:38 +0100
commit56e86c626df3dbf74c1021210636a7c5d92a49ce (patch)
tree54ba9581ad14d838d8926e4e6d673befad1f932c /drivers/fsl_vref.c
parent4dfc5493fec8f6290457446b0478695b153da60a (diff)
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Diffstat (limited to 'drivers/fsl_vref.c')
-rw-r--r--drivers/fsl_vref.c230
1 files changed, 0 insertions, 230 deletions
diff --git a/drivers/fsl_vref.c b/drivers/fsl_vref.c
deleted file mode 100644
index 24f2d1d..0000000
--- a/drivers/fsl_vref.c
+++ /dev/null
@@ -1,230 +0,0 @@
-/*
- * Copyright (c) 2015, Freescale Semiconductor, Inc.
- * Copyright 2016-2017 NXP
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * o Redistributions of source code must retain the above copyright notice, this list
- * of conditions and the following disclaimer.
- *
- * o Redistributions in binary form must reproduce the above copyright notice, this
- * list of conditions and the following disclaimer in the documentation and/or
- * other materials provided with the distribution.
- *
- * o Neither the name of the copyright holder nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "fsl_vref.h"
-
-/*******************************************************************************
- * Prototypes
- ******************************************************************************/
-
-/*!
- * @brief Gets the instance from the base address
- *
- * @param base VREF peripheral base address
- *
- * @return The VREF instance
- */
-static uint32_t VREF_GetInstance(VREF_Type *base);
-
-/*******************************************************************************
- * Variables
- ******************************************************************************/
-
-/*! @brief Pointers to VREF bases for each instance. */
-static VREF_Type *const s_vrefBases[] = VREF_BASE_PTRS;
-
-#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
-/*! @brief Pointers to VREF clocks for each instance. */
-static const clock_ip_name_t s_vrefClocks[] = VREF_CLOCKS;
-#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
-
-/*******************************************************************************
- * Code
- ******************************************************************************/
-
-static uint32_t VREF_GetInstance(VREF_Type *base)
-{
- uint32_t instance;
-
- /* Find the instance index from base address mappings. */
- for (instance = 0; instance < ARRAY_SIZE(s_vrefBases); instance++)
- {
- if (s_vrefBases[instance] == base)
- {
- break;
- }
- }
-
- assert(instance < ARRAY_SIZE(s_vrefBases));
-
- return instance;
-}
-
-void VREF_Init(VREF_Type *base, const vref_config_t *config)
-{
- assert(config != NULL);
-
- uint8_t reg = 0U;
-
-#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
- /* Ungate clock for VREF */
- CLOCK_EnableClock(s_vrefClocks[VREF_GetInstance(base)]);
-#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
-
-/* Configure VREF to a known state */
-#if defined(FSL_FEATURE_VREF_HAS_CHOP_OSC) && FSL_FEATURE_VREF_HAS_CHOP_OSC
- /* Set chop oscillator bit */
- base->TRM |= VREF_TRM_CHOPEN_MASK;
-#endif /* FSL_FEATURE_VREF_HAS_CHOP_OSC */
- /* Get current SC register */
-#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE
- reg = base->VREFH_SC;
-#else
- reg = base->SC;
-#endif/* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */
- /* Clear old buffer mode selection bits */
- reg &= ~VREF_SC_MODE_LV_MASK;
- /* Set buffer Mode selection and Regulator enable bit */
- reg |= VREF_SC_MODE_LV(config->bufferMode) | VREF_SC_REGEN(1U);
-#if defined(FSL_FEATURE_VREF_HAS_COMPENSATION) && FSL_FEATURE_VREF_HAS_COMPENSATION
- /* Set second order curvature compensation enable bit */
- reg |= VREF_SC_ICOMPEN(1U);
-#endif /* FSL_FEATURE_VREF_HAS_COMPENSATION */
- /* Enable VREF module */
- reg |= VREF_SC_VREFEN(1U);
- /* Update bit-field from value to Status and Control register */
-#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE
- base->VREFH_SC = reg;
-#else
- base->SC = reg;
-#endif/* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */
-#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE
- reg = base->VREFL_TRM;
- /* Clear old select external voltage reference and VREFL (0.4 V) reference buffer enable bits */
- reg &= ~(VREF_VREFL_TRM_VREFL_EN_MASK | VREF_VREFL_TRM_VREFL_SEL_MASK);
- /* Select external voltage reference and set VREFL (0.4 V) reference buffer enable */
- reg |= VREF_VREFL_TRM_VREFL_SEL(config->enableExternalVoltRef) | VREF_VREFL_TRM_VREFL_EN(config->enableLowRef);
- base->VREFL_TRM = reg;
-#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */
-
-#if defined(FSL_FEATURE_VREF_HAS_TRM4) && FSL_FEATURE_VREF_HAS_TRM4
- reg = base->TRM4;
- /* Clear old select internal voltage reference bit (2.1V) */
- reg &= ~VREF_TRM4_VREF2V1_EN_MASK;
- /* Select internal voltage reference (2.1V) */
- reg |= VREF_TRM4_VREF2V1_EN(config->enable2V1VoltRef);
- base->TRM4 = reg;
-#endif /* FSL_FEATURE_VREF_HAS_TRM4 */
-
- /* Wait until internal voltage stable */
-#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE
- while ((base->VREFH_SC & VREF_SC_VREFST_MASK) == 0)
-#else
- while ((base->SC & VREF_SC_VREFST_MASK) == 0)
-#endif/* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */
- {
- }
-}
-
-void VREF_Deinit(VREF_Type *base)
-{
-#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
- /* Gate clock for VREF */
- CLOCK_DisableClock(s_vrefClocks[VREF_GetInstance(base)]);
-#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
-}
-
-void VREF_GetDefaultConfig(vref_config_t *config)
-{
- assert(config);
-
-/* Set High power buffer mode in */
-#if defined(FSL_FEATURE_VREF_MODE_LV_TYPE) && FSL_FEATURE_VREF_MODE_LV_TYPE
- config->bufferMode = kVREF_ModeHighPowerBuffer;
-#else
- config->bufferMode = kVREF_ModeTightRegulationBuffer;
-#endif /* FSL_FEATURE_VREF_MODE_LV_TYPE */
-
-#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE
- /* Select internal voltage reference */
- config->enableExternalVoltRef = false;
- /* Set VREFL (0.4 V) reference buffer disable */
- config->enableLowRef = false;
-#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */
-
-#if defined(FSL_FEATURE_VREF_HAS_TRM4) && FSL_FEATURE_VREF_HAS_TRM4
- /* Disable internal voltage reference (2.1V) */
- config->enable2V1VoltRef = false;
-#endif /* FSL_FEATURE_VREF_HAS_TRM4 */
-}
-
-void VREF_SetTrimVal(VREF_Type *base, uint8_t trimValue)
-{
- uint8_t reg = 0U;
-
- /* Set TRIM bits value in voltage reference */
- reg = base->TRM;
- reg = ((reg & ~VREF_TRM_TRIM_MASK) | VREF_TRM_TRIM(trimValue));
- base->TRM = reg;
- /* Wait until internal voltage stable */
-#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE
- while ((base->VREFH_SC & VREF_SC_VREFST_MASK) == 0)
-#else
- while ((base->SC & VREF_SC_VREFST_MASK) == 0)
-#endif/* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */
- {
- }
-}
-
-#if defined(FSL_FEATURE_VREF_HAS_TRM4) && FSL_FEATURE_VREF_HAS_TRM4
-void VREF_SetTrim2V1Val(VREF_Type *base, uint8_t trimValue)
-{
- uint8_t reg = 0U;
-
- /* Set TRIM bits value in voltage reference (2V1) */
- reg = base->TRM4;
- reg = ((reg & ~VREF_TRM4_TRIM2V1_MASK) | VREF_TRM4_TRIM2V1(trimValue));
- base->TRM4 = reg;
- /* Wait until internal voltage stable */
- while ((base->SC & VREF_SC_VREFST_MASK) == 0)
- {
- }
-}
-#endif /* FSL_FEATURE_VREF_HAS_TRM4 */
-
-#if defined(FSL_FEATURE_VREF_HAS_LOW_REFERENCE) && FSL_FEATURE_VREF_HAS_LOW_REFERENCE
-void VREF_SetLowReferenceTrimVal(VREF_Type *base, uint8_t trimValue)
-{
- /* The values 111b and 110b are NOT valid/allowed */
- assert((trimValue != 0x7U) && (trimValue != 0x6U));
-
- uint8_t reg = 0U;
-
- /* Set TRIM bits value in low voltage reference */
- reg = base->VREFL_TRM;
- reg = ((reg & ~VREF_VREFL_TRM_VREFL_TRIM_MASK) | VREF_VREFL_TRM_VREFL_TRIM(trimValue));
- base->VREFL_TRM = reg;
- /* Wait until internal voltage stable */
-
- while ((base->VREFH_SC & VREF_SC_VREFST_MASK) == 0)
- {
- }
-}
-#endif /* FSL_FEATURE_VREF_HAS_LOW_REFERENCE */