major project reorg, move library one level up

2 files changed, 841 insertions, 0 deletions

diff --git a/watch-library/hpl/adc/hpl_adc.c b/watch-library/hpl/adc/hpl_adc.c
new file mode 100644
index 00000000..032302cb
--- /dev/null
+++ b/watch-library/hpl/adc/hpl_adc.c
@@ -0,0 +1,769 @@
+
+/**
+ * \file
+ *
+ * \brief SAM Analog Digital Converter
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#include <hpl_adc_async.h>
+#include <hpl_adc_dma.h>
+#include <hpl_adc_sync.h>
+#include <utils_assert.h>
+#include <utils_repeat_macro.h>
+#include <hpl_adc_config.h>
+
+#ifndef CONF_ADC_0_ENABLE
+#define CONF_ADC_0_ENABLE 0
+#endif
+#ifndef CONF_ADC_1_ENABLE
+#define CONF_ADC_1_ENABLE 0
+#endif
+
+/**
+ * \brief Macro is used to fill ADC configuration structure based on its number
+ *
+ * \param[in] n The number of structures
+ */
+#define ADC_CONFIGURATION(n)                                                                                           \
+	{                                                                                                                  \
+		(n),                                                                                                           \
+		    (CONF_ADC_##n##_RUNSTDBY << ADC_CTRLA_RUNSTDBY_Pos) | (CONF_ADC_##n##_ONDEMAND << ADC_CTRLA_ONDEMAND_Pos), \
+		    ADC_CTRLB_PRESCALER(CONF_ADC_##n##_PRESCALER),                                                             \
+		    (CONF_ADC_##n##_REFCOMP << ADC_REFCTRL_REFCOMP_Pos) | ADC_REFCTRL_REFSEL(CONF_ADC_##n##_REFSEL),           \
+		    (CONF_ADC_##n##_WINMONEO << ADC_EVCTRL_WINMONEO_Pos)                                                       \
+		        | (CONF_ADC_##n##_RESRDYEO << ADC_EVCTRL_RESRDYEO_Pos)                                                 \
+		        | (CONF_ADC_##n##_STARTINV << ADC_EVCTRL_STARTINV_Pos)                                                 \
+		        | (CONF_ADC_##n##_FLUSHINV << ADC_EVCTRL_FLUSHINV_Pos)                                                 \
+		        | (CONF_ADC_##n##_STARTEI << ADC_EVCTRL_STARTEI_Pos)                                                   \
+		        | (CONF_ADC_##n##_FLUSHEI << ADC_EVCTRL_FLUSHEI_Pos),                                                  \
+		    ADC_INPUTCTRL_MUXNEG(CONF_ADC_##n##_MUXNEG) | ADC_INPUTCTRL_MUXPOS(CONF_ADC_##n##_MUXPOS),                 \
+		    ADC_CTRLC_WINMODE(CONF_ADC_##n##_WINMODE) | ADC_CTRLC_RESSEL(CONF_ADC_##n##_RESSEL)                        \
+		        | (CONF_ADC_##n##_CORREN << ADC_CTRLC_CORREN_Pos) | (CONF_ADC_##n##_FREERUN << ADC_CTRLC_FREERUN_Pos)  \
+		        | (CONF_ADC_##n##_LEFTADJ << ADC_CTRLC_LEFTADJ_Pos)                                                    \
+		        | (CONF_ADC_##n##_DIFFMODE << ADC_CTRLC_DIFFMODE_Pos),                                                 \
+		    ADC_AVGCTRL_ADJRES(CONF_ADC_##n##_ADJRES) | ADC_AVGCTRL_SAMPLENUM(CONF_ADC_##n##_SAMPLENUM),               \
+		    (CONF_ADC_##n##_OFFCOMP << ADC_SAMPCTRL_OFFCOMP_Pos) | ADC_SAMPCTRL_SAMPLEN(CONF_ADC_##n##_SAMPLEN),       \
+		    ADC_WINLT_WINLT(CONF_ADC_##n##_WINLT), ADC_WINUT_WINUT(CONF_ADC_##n##_WINUT),                              \
+		    ADC_GAINCORR_GAINCORR(CONF_ADC_##n##_GAINCORR), ADC_OFFSETCORR_OFFSETCORR(CONF_ADC_##n##_OFFSETCORR),      \
+		    CONF_ADC_##n##_DBGRUN << ADC_DBGCTRL_DBGRUN_Pos, ADC_SEQCTRL_SEQEN(CONF_ADC_##n##_SEQEN),                  \
+	}
+
+/**
+ * \brief ADC configuration
+ */
+struct adc_configuration {
+	uint8_t                  number;
+	hri_adc_ctrla_reg_t      ctrl_a;
+	hri_adc_ctrlb_reg_t      ctrl_b;
+	hri_adc_refctrl_reg_t    ref_ctrl;
+	hri_adc_evctrl_reg_t     ev_ctrl;
+	hri_adc_inputctrl_reg_t  input_ctrl;
+	hri_adc_ctrlc_reg_t      ctrl_c;
+	hri_adc_avgctrl_reg_t    avg_ctrl;
+	hri_adc_sampctrl_reg_t   samp_ctrl;
+	hri_adc_winlt_reg_t      win_lt;
+	hri_adc_winut_reg_t      win_ut;
+	hri_adc_gaincorr_reg_t   gain_corr;
+	hri_adc_offsetcorr_reg_t offset_corr;
+	hri_adc_dbgctrl_reg_t    dbg_ctrl;
+	hri_adc_seqctrl_reg_t    seq_ctrl;
+};
+
+#define ADC_AMOUNT (CONF_ADC_0_ENABLE + CONF_ADC_1_ENABLE)
+
+/**
+ * \brief Array of ADC configurations
+ */
+static const struct adc_configuration _adcs[] = {
+#if CONF_ADC_0_ENABLE == 1
+    ADC_CONFIGURATION(0),
+#endif
+#if CONF_ADC_1_ENABLE == 1
+    ADC_CONFIGURATION(1),
+#endif
+};
+
+static void _adc_set_reference_source(void *const hw, const adc_reference_t reference);
+
+/**
+ * \brief Retrieve ordinal number of the given adc hardware instance
+ */
+static uint8_t _adc_get_hardware_index(const void *const hw)
+{
+
+	(void)hw;
+	return 0;
+}
+
+/** \brief Return the pointer to register settings of specific ADC
+ *  \param[in] hw_addr The hardware register base address.
+ *  \return Pointer to register settings of specific ADC.
+ */
+static uint8_t _adc_get_regs(const uint32_t hw_addr)
+{
+	uint8_t n = _adc_get_hardware_index((const void *)hw_addr);
+	uint8_t i;
+
+	for (i = 0; i < sizeof(_adcs) / sizeof(struct adc_configuration); i++) {
+		if (_adcs[i].number == n) {
+			return i;
+		}
+	}
+
+	ASSERT(false);
+	return 0;
+}
+
+/**
+ * \brief Retrieve IRQ number for the given hardware instance
+ */
+static uint8_t _adc_get_irq_num(const struct _adc_async_device *const device)
+{
+
+	(void)device;
+	return ADC_IRQn;
+}
+
+/**
+ * \brief Init irq param with the given afec hardware instance
+ */
+static void _adc_init_irq_param(const void *const hw, struct _adc_async_device *dev)
+{
+}
+
+/**
+ * \brief Initialize ADC
+ *
+ * \param[in] hw The pointer to hardware instance
+ * \param[in] i The number of hardware instance
+ */
+static int32_t _adc_init(void *const hw, const uint8_t i)
+{
+	uint16_t calib_reg = 0;
+	calib_reg          = ADC_CALIB_BIASREFBUF((*(uint32_t *)ADC_FUSES_BIASREFBUF_ADDR >> ADC_FUSES_BIASREFBUF_Pos))
+	            | ADC_CALIB_BIASCOMP((*(uint32_t *)ADC_FUSES_BIASCOMP_ADDR >> ADC_FUSES_BIASCOMP_Pos));
+
+	ASSERT(hw == ADC);
+
+	if (!hri_adc_is_syncing(hw, ADC_SYNCBUSY_SWRST)) {
+		if (hri_adc_get_CTRLA_reg(hw, ADC_CTRLA_ENABLE)) {
+			hri_adc_clear_CTRLA_ENABLE_bit(hw);
+			hri_adc_wait_for_sync(hw, ADC_SYNCBUSY_ENABLE);
+		}
+		hri_adc_write_CTRLA_reg(hw, ADC_CTRLA_SWRST);
+	}
+	hri_adc_wait_for_sync(hw, ADC_SYNCBUSY_SWRST);
+
+	hri_adc_write_CALIB_reg(hw, calib_reg);
+	hri_adc_write_CTRLB_reg(hw, _adcs[i].ctrl_b);
+	hri_adc_write_REFCTRL_reg(hw, _adcs[i].ref_ctrl);
+	hri_adc_write_EVCTRL_reg(hw, _adcs[i].ev_ctrl);
+	hri_adc_write_INPUTCTRL_reg(hw, _adcs[i].input_ctrl);
+	hri_adc_write_CTRLC_reg(hw, _adcs[i].ctrl_c);
+	hri_adc_write_AVGCTRL_reg(hw, _adcs[i].avg_ctrl);
+	hri_adc_write_SAMPCTRL_reg(hw, _adcs[i].samp_ctrl);
+	hri_adc_write_WINLT_reg(hw, _adcs[i].win_lt);
+	hri_adc_write_WINUT_reg(hw, _adcs[i].win_ut);
+	hri_adc_write_GAINCORR_reg(hw, _adcs[i].gain_corr);
+	hri_adc_write_OFFSETCORR_reg(hw, _adcs[i].offset_corr);
+	hri_adc_write_DBGCTRL_reg(hw, _adcs[i].dbg_ctrl);
+	hri_adc_write_SEQCTRL_reg(hw, _adcs[i].seq_ctrl);
+	hri_adc_write_CTRLA_reg(hw, _adcs[i].ctrl_a);
+
+	return ERR_NONE;
+}
+
+/**
+ * \brief De-initialize ADC
+ *
+ * \param[in] hw The pointer to hardware instance
+ */
+static inline void _adc_deinit(void *hw)
+{
+	hri_adc_clear_CTRLA_ENABLE_bit(hw);
+	hri_adc_set_CTRLA_SWRST_bit(hw);
+}
+
+/**
+ * \brief Initialize ADC
+ */
+int32_t _adc_sync_init(struct _adc_sync_device *const device, void *const hw)
+{
+	ASSERT(device);
+
+	device->hw = hw;
+
+	return _adc_init(hw, _adc_get_regs((uint32_t)hw));
+}
+
+/**
+ * \brief Initialize ADC
+ */
+int32_t _adc_async_init(struct _adc_async_device *const device, void *const hw)
+{
+	int32_t init_status;
+
+	ASSERT(device);
+
+	init_status = _adc_init(hw, _adc_get_regs((uint32_t)hw));
+	if (init_status) {
+		return init_status;
+	}
+	device->hw = hw;
+	_adc_init_irq_param(hw, device);
+	NVIC_DisableIRQ(_adc_get_irq_num(device));
+	NVIC_ClearPendingIRQ(_adc_get_irq_num(device));
+	NVIC_EnableIRQ(_adc_get_irq_num(device));
+
+	return ERR_NONE;
+}
+
+/**
+ * \brief Initialize ADC
+ */
+int32_t _adc_dma_init(struct _adc_dma_device *const device, void *const hw)
+{
+	ASSERT(device);
+
+	device->hw = hw;
+
+	return _adc_init(hw, _adc_get_regs((uint32_t)hw));
+}
+
+/**
+ * \brief De-initialize ADC
+ */
+void _adc_sync_deinit(struct _adc_sync_device *const device)
+{
+	_adc_deinit(device->hw);
+}
+
+/**
+ * \brief De-initialize ADC
+ */
+void _adc_async_deinit(struct _adc_async_device *const device)
+{
+	NVIC_DisableIRQ(_adc_get_irq_num(device));
+	NVIC_ClearPendingIRQ(_adc_get_irq_num(device));
+
+	_adc_deinit(device->hw);
+}
+
+/**
+ * \brief De-initialize ADC
+ */
+void _adc_dma_deinit(struct _adc_dma_device *const device)
+{
+	_adc_deinit(device->hw);
+}
+
+/**
+ * \brief Enable ADC
+ */
+void _adc_sync_enable_channel(struct _adc_sync_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_set_CTRLA_ENABLE_bit(device->hw);
+}
+
+/**
+ * \brief Enable ADC
+ */
+void _adc_async_enable_channel(struct _adc_async_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_set_CTRLA_ENABLE_bit(device->hw);
+}
+
+/**
+ * \brief Enable ADC
+ */
+void _adc_dma_enable_channel(struct _adc_dma_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_set_CTRLA_ENABLE_bit(device->hw);
+}
+
+/**
+ * \brief Disable ADC
+ */
+void _adc_sync_disable_channel(struct _adc_sync_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_clear_CTRLA_ENABLE_bit(device->hw);
+}
+
+/**
+ * \brief Disable ADC
+ */
+void _adc_async_disable_channel(struct _adc_async_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_clear_CTRLA_ENABLE_bit(device->hw);
+}
+
+/**
+ * \brief Disable ADC
+ */
+void _adc_dma_disable_channel(struct _adc_dma_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_clear_CTRLA_ENABLE_bit(device->hw);
+}
+
+/**
+ * \brief Return address of ADC DMA source
+ */
+uint32_t _adc_get_source_for_dma(struct _adc_dma_device *const device)
+{
+	return (uint32_t) & (((Adc *)(device->hw))->RESULT.reg);
+}
+
+/**
+ * \brief Retrieve ADC conversion data size
+ */
+uint8_t _adc_sync_get_data_size(const struct _adc_sync_device *const device)
+{
+	return hri_adc_read_CTRLC_RESSEL_bf(device->hw) == ADC_CTRLC_RESSEL_8BIT_Val ? 1 : 2;
+}
+
+/**
+ * \brief Retrieve ADC conversion data size
+ */
+uint8_t _adc_async_get_data_size(const struct _adc_async_device *const device)
+{
+	return hri_adc_read_CTRLC_RESSEL_bf(device->hw) == ADC_CTRLC_RESSEL_8BIT_Val ? 1 : 2;
+}
+
+/**
+ * \brief Retrieve ADC conversion data size
+ */
+uint8_t _adc_dma_get_data_size(const struct _adc_dma_device *const device)
+{
+	return hri_adc_read_CTRLC_RESSEL_bf(device->hw) == ADC_CTRLC_RESSEL_8BIT_Val ? 1 : 2;
+}
+
+/**
+ * \brief Check if conversion is done
+ */
+bool _adc_sync_is_channel_conversion_done(const struct _adc_sync_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	return hri_adc_get_interrupt_RESRDY_bit(device->hw);
+}
+
+/**
+ * \brief Check if conversion is done
+ */
+bool _adc_async_is_channel_conversion_done(const struct _adc_async_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	return hri_adc_get_interrupt_RESRDY_bit(device->hw);
+}
+
+/**
+ * \brief Check if conversion is done
+ */
+bool _adc_dma_is_conversion_done(const struct _adc_dma_device *const device)
+{
+	return hri_adc_get_interrupt_RESRDY_bit(device->hw);
+}
+
+/**
+ * \brief Make conversion
+ */
+void _adc_sync_convert(struct _adc_sync_device *const device)
+{
+	hri_adc_set_SWTRIG_START_bit(device->hw);
+}
+
+/**
+ * \brief Make conversion
+ */
+void _adc_async_convert(struct _adc_async_device *const device)
+{
+	hri_adc_set_SWTRIG_START_bit(device->hw);
+}
+
+/**
+ * \brief Make conversion
+ */
+void _adc_dma_convert(struct _adc_dma_device *const device)
+{
+	hri_adc_set_SWTRIG_START_bit(device->hw);
+}
+
+/**
+ * \brief Retrieve the conversion result
+ */
+uint16_t _adc_sync_read_channel_data(const struct _adc_sync_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	return hri_adc_read_RESULT_reg(device->hw);
+}
+
+/**
+ * \brief Retrieve the conversion result
+ */
+uint16_t _adc_async_read_channel_data(const struct _adc_async_device *const device, const uint8_t channel)
+{
+	(void)channel;
+
+	return hri_adc_read_RESULT_reg(device->hw);
+}
+
+/**
+ * \brief Set reference source
+ */
+void _adc_sync_set_reference_source(struct _adc_sync_device *const device, const adc_reference_t reference)
+{
+	_adc_set_reference_source(device->hw, reference);
+}
+
+/**
+ * \brief Set reference source
+ */
+void _adc_async_set_reference_source(struct _adc_async_device *const device, const adc_reference_t reference)
+{
+	_adc_set_reference_source(device->hw, reference);
+}
+
+/**
+ * \brief Set reference source
+ */
+void _adc_dma_set_reference_source(struct _adc_dma_device *const device, const adc_reference_t reference)
+{
+	_adc_set_reference_source(device->hw, reference);
+}
+
+/**
+ * \brief Set resolution
+ */
+void _adc_sync_set_resolution(struct _adc_sync_device *const device, const adc_resolution_t resolution)
+{
+	hri_adc_write_CTRLC_RESSEL_bf(device->hw, resolution);
+}
+
+/**
+ * \brief Set resolution
+ */
+void _adc_async_set_resolution(struct _adc_async_device *const device, const adc_resolution_t resolution)
+{
+	hri_adc_write_CTRLC_RESSEL_bf(device->hw, resolution);
+}
+
+/**
+ * \brief Set resolution
+ */
+void _adc_dma_set_resolution(struct _adc_dma_device *const device, const adc_resolution_t resolution)
+{
+	hri_adc_write_CTRLC_RESSEL_bf(device->hw, resolution);
+}
+
+/**
+ * \brief Set channels input sources
+ */
+void _adc_sync_set_inputs(struct _adc_sync_device *const device, const adc_pos_input_t pos_input,
+                          const adc_neg_input_t neg_input, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_write_INPUTCTRL_MUXPOS_bf(device->hw, pos_input);
+	hri_adc_write_INPUTCTRL_MUXNEG_bf(device->hw, neg_input);
+}
+
+/**
+ * \brief Set channels input sources
+ */
+void _adc_async_set_inputs(struct _adc_async_device *const device, const adc_pos_input_t pos_input,
+                           const adc_neg_input_t neg_input, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_write_INPUTCTRL_MUXPOS_bf(device->hw, pos_input);
+	hri_adc_write_INPUTCTRL_MUXNEG_bf(device->hw, neg_input);
+}
+
+/**
+ * \brief Set channels input source
+ */
+void _adc_dma_set_inputs(struct _adc_dma_device *const device, const adc_pos_input_t pos_input,
+                         const adc_neg_input_t neg_input, const uint8_t channel)
+{
+	(void)channel;
+
+	hri_adc_write_INPUTCTRL_MUXPOS_bf(device->hw, pos_input);
+	hri_adc_write_INPUTCTRL_MUXNEG_bf(device->hw, neg_input);
+}
+
+/**
+ * \brief Set thresholds
+ */
+void _adc_sync_set_thresholds(struct _adc_sync_device *const device, const adc_threshold_t low_threshold,
+                              const adc_threshold_t up_threshold)
+{
+	hri_adc_write_WINLT_reg(device->hw, low_threshold);
+	hri_adc_write_WINUT_reg(device->hw, up_threshold);
+}
+
+/**
+ * \brief Set thresholds
+ */
+void _adc_async_set_thresholds(struct _adc_async_device *const device, const adc_threshold_t low_threshold,
+                               const adc_threshold_t up_threshold)
+{
+	hri_adc_write_WINLT_reg(device->hw, low_threshold);
+	hri_adc_write_WINUT_reg(device->hw, up_threshold);
+}
+
+/**
+ * \brief Set thresholds
+ */
+void _adc_dma_set_thresholds(struct _adc_dma_device *const device, const adc_threshold_t low_threshold,
+                             const adc_threshold_t up_threshold)
+{
+	hri_adc_write_WINLT_reg(device->hw, low_threshold);
+	hri_adc_write_WINUT_reg(device->hw, up_threshold);
+}
+
+/**
+ * \brief Set gain
+ */
+void _adc_sync_set_channel_gain(struct _adc_sync_device *const device, const uint8_t channel, const adc_gain_t gain)
+{
+	(void)device, (void)channel, (void)gain;
+}
+
+/**
+ * \brief Set gain
+ */
+void _adc_async_set_channel_gain(struct _adc_async_device *const device, const uint8_t channel, const adc_gain_t gain)
+{
+	(void)device, (void)channel, (void)gain;
+}
+
+/**
+ * \brief Set gain
+ */
+void _adc_dma_set_channel_gain(struct _adc_dma_device *const device, const uint8_t channel, const adc_gain_t gain)
+{
+	(void)device, (void)channel, (void)gain;
+}
+
+/**
+ * \brief Set conversion mode
+ */
+void _adc_sync_set_conversion_mode(struct _adc_sync_device *const device, const enum adc_conversion_mode mode)
+{
+	if (ADC_CONVERSION_MODE_FREERUN == mode) {
+		hri_adc_set_CTRLC_FREERUN_bit(device->hw);
+	} else {
+		hri_adc_clear_CTRLC_FREERUN_bit(device->hw);
+	}
+}
+
+/**
+ * \brief Set conversion mode
+ */
+void _adc_async_set_conversion_mode(struct _adc_async_device *const device, const enum adc_conversion_mode mode)
+{
+	if (ADC_CONVERSION_MODE_FREERUN == mode) {
+		hri_adc_set_CTRLC_FREERUN_bit(device->hw);
+	} else {
+		hri_adc_clear_CTRLC_FREERUN_bit(device->hw);
+	}
+}
+
+/**
+ * \brief Set conversion mode
+ */
+void _adc_dma_set_conversion_mode(struct _adc_dma_device *const device, const enum adc_conversion_mode mode)
+{
+	if (ADC_CONVERSION_MODE_FREERUN == mode) {
+		hri_adc_set_CTRLC_FREERUN_bit(device->hw);
+	} else {
+		hri_adc_clear_CTRLC_FREERUN_bit(device->hw);
+	}
+}
+
+/**
+ * \brief Set differential mode
+ */
+void _adc_sync_set_channel_differential_mode(struct _adc_sync_device *const device, const uint8_t channel,
+                                             const enum adc_differential_mode mode)
+{
+	(void)channel;
+
+	if (ADC_DIFFERENTIAL_MODE_DIFFERENTIAL == mode) {
+		hri_adc_set_CTRLC_DIFFMODE_bit(device->hw);
+	} else {
+		hri_adc_clear_CTRLC_DIFFMODE_bit(device->hw);
+	}
+}
+
+/**
+ * \brief Set differential mode
+ */
+void _adc_async_set_channel_differential_mode(struct _adc_async_device *const device, const uint8_t channel,
+                                              const enum adc_differential_mode mode)
+{
+	(void)channel;
+
+	if (ADC_DIFFERENTIAL_MODE_DIFFERENTIAL == mode) {
+		hri_adc_set_CTRLC_DIFFMODE_bit(device->hw);
+	} else {
+		hri_adc_clear_CTRLC_DIFFMODE_bit(device->hw);
+	}
+}
+
+/**
+ * \brief Set differential mode
+ */
+void _adc_dma_set_channel_differential_mode(struct _adc_dma_device *const device, const uint8_t channel,
+                                            const enum adc_differential_mode mode)
+{
+	(void)channel;
+
+	if (ADC_DIFFERENTIAL_MODE_DIFFERENTIAL == mode) {
+		hri_adc_set_CTRLC_DIFFMODE_bit(device->hw);
+	} else {
+		hri_adc_clear_CTRLC_DIFFMODE_bit(device->hw);
+	}
+}
+
+/**
+ * \brief Set window mode
+ */
+void _adc_sync_set_window_mode(struct _adc_sync_device *const device, const adc_window_mode_t mode)
+{
+	hri_adc_write_CTRLC_WINMODE_bf(device->hw, mode);
+}
+
+/**
+ * \brief Set window mode
+ */
+void _adc_async_set_window_mode(struct _adc_async_device *const device, const adc_window_mode_t mode)
+{
+	hri_adc_write_CTRLC_WINMODE_bf(device->hw, mode);
+}
+
+/**
+ * \brief Set window mode
+ */
+void _adc_dma_set_window_mode(struct _adc_dma_device *const device, const adc_window_mode_t mode)
+{
+	hri_adc_write_CTRLC_WINMODE_bf(device->hw, mode);
+}
+
+/**
+ * \brief Retrieve threshold state
+ */
+void _adc_sync_get_threshold_state(const struct _adc_sync_device *const device, adc_threshold_status_t *const state)
+{
+	*state = hri_adc_get_interrupt_WINMON_bit(device->hw);
+}
+
+/**
+ * \brief Retrieve threshold state
+ */
+void _adc_async_get_threshold_state(const struct _adc_async_device *const device, adc_threshold_status_t *const state)
+{
+	*state = hri_adc_get_interrupt_WINMON_bit(device->hw);
+}
+
+/**
+ * \brief Retrieve threshold state
+ */
+void _adc_dma_get_threshold_state(const struct _adc_dma_device *const device, adc_threshold_status_t *const state)
+{
+	*state = hri_adc_get_interrupt_WINMON_bit(device->hw);
+}
+
+/**
+ * \brief Enable/disable ADC channel interrupt
+ */
+void _adc_async_set_irq_state(struct _adc_async_device *const device, const uint8_t channel,
+                              const enum _adc_async_callback_type type, const bool state)
+{
+	(void)channel;
+
+	void *const hw = device->hw;
+
+	if (ADC_ASYNC_DEVICE_MONITOR_CB == type) {
+		hri_adc_write_INTEN_WINMON_bit(hw, state);
+	} else if (ADC_ASYNC_DEVICE_ERROR_CB == type) {
+		hri_adc_write_INTEN_OVERRUN_bit(hw, state);
+	} else if (ADC_ASYNC_DEVICE_CONVERT_CB == type) {
+		hri_adc_write_INTEN_RESRDY_bit(hw, state);
+	}
+}
+
+/**
+ * \brief Retrieve ADC sync helper functions
+ */
+void *_adc_get_adc_sync(void)
+{
+	return (void *)NULL;
+}
+
+/**
+ * \brief Retrieve ADC async helper functions
+ */
+void *_adc_get_adc_async(void)
+{
+	return (void *)NULL;
+}
+
+/**
+ * \brief Set ADC reference source
+ *
+ * \param[in] hw The pointer to hardware instance
+ * \param[in] reference The reference to set
+ */
+static void _adc_set_reference_source(void *const hw, const adc_reference_t reference)
+{
+	bool enabled = hri_adc_get_CTRLA_ENABLE_bit(hw);
+
+	hri_adc_clear_CTRLA_ENABLE_bit(hw);
+	hri_adc_write_REFCTRL_REFSEL_bf(hw, reference);
+
+	if (enabled) {
+		hri_adc_set_CTRLA_ENABLE_bit(hw);
+	}
+}
diff --git a/watch-library/hpl/adc/hpl_adc_base.h b/watch-library/hpl/adc/hpl_adc_base.h
new file mode 100644
index 00000000..e9b95283
--- /dev/null
+++ b/watch-library/hpl/adc/hpl_adc_base.h
@@ -0,0 +1,72 @@
+/**
+ * \file
+ *
+ * \brief ADC related functionality declaration.
+ *
+ * Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_ADC_ADC_H_INCLUDED
+#define _HPL_ADC_ADC_H_INCLUDED
+
+#include <hpl_adc_sync.h>
+#include <hpl_adc_async.h>
+
+/**
+ * \addtogroup HPL ADC
+ *
+ * \section hpl_adc_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name HPL functions
+ */
+//@{
+
+/**
+ * \brief Retrieve ADC helper functions
+ *
+ * \return A pointer to set of ADC helper functions
+ */
+void *_adc_get_adc_sync(void);
+void *_adc_get_adc_async(void);
+
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_USART_UART_H_INCLUDED */