add more atmel studio framework code

8 files changed, 1386 insertions, 0 deletions

diff --git a/watch-library/hal/include/hal_flash.h b/watch-library/hal/include/hal_flash.h
new file mode 100755
index 00000000..8216afde
--- /dev/null
+++ b/watch-library/hal/include/hal_flash.h
@@ -0,0 +1,209 @@
+/**
+ * \file
+ *
+ * \brief Flash related functionality declaration.
+ *
+ * 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
+ *
+ */
+
+#ifndef _HAL_FLASH_H_INCLUDED
+#define _HAL_FLASH_H_INCLUDED
+
+#include <hpl_flash.h>
+
+/**
+ * \addtogroup doc_driver_hal_flash
+ *
+ * @{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Forward declaration of flash_descriptor. */
+struct flash_descriptor;
+
+/** The callback types */
+enum flash_cb_type {
+	/** Callback type for ready to accept a new command */
+	FLASH_CB_READY,
+	/** Callback type for error */
+	FLASH_CB_ERROR,
+	FLASH_CB_N
+};
+
+/** \brief Prototype of callback on FLASH
+ *
+ */
+typedef void (*flash_cb_t)(struct flash_descriptor *const descr);
+
+/** \brief FLASH HAL callbacks
+ *
+ */
+struct flash_callbacks {
+	/** Callback invoked when ready to accept a new command */
+	flash_cb_t cb_ready;
+	/** Callback invoked when error occurs */
+	flash_cb_t cb_error;
+};
+
+/** \brief FLASH HAL driver struct for asynchronous access
+ */
+struct flash_descriptor {
+	/** Pointer to FLASH device instance */
+	struct _flash_device dev;
+	/** Callbacks for asynchronous transfer */
+	struct flash_callbacks callbacks;
+};
+
+/** \brief Initialize the FLASH HAL instance and hardware for callback mode
+ *
+ *  Initialize FLASH HAL with interrupt mode (uses callbacks).
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \param[in] hw Pointer to the hardware base.
+ *  \return Initialize status.
+ */
+int32_t flash_init(struct flash_descriptor *flash, void *const hw);
+
+/** \brief Deinitialize the FLASH HAL instance
+ *
+ *  Abort transfer, disable and reset FLASH, and deinitialize software.
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \return Deinitialze status.
+ */
+int32_t flash_deinit(struct flash_descriptor *flash);
+
+/** \brief Writes a number of bytes to a page in the internal Flash
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \param[in]  dst_addr  Destination bytes address to write into flash
+ *  \param[in]  buffer    Pointer to a buffer where the content
+ *                        will be written to the flash
+ *  \param[in]  length    Number of bytes to write
+ *  \return Write status.
+ */
+int32_t flash_write(struct flash_descriptor *flash, uint32_t dst_addr, uint8_t *buffer, uint32_t length);
+
+/** \brief Appends a number of bytes to a page in the internal Flash
+ *
+ *  This functions never erases the flash before writing.
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \param[in]  dst_addr  Destination bytes address to write to flash
+ *  \param[in]  buffer    Pointer to a buffer with data to write to flash
+ *  \param[in]  length    Number of bytes to append
+ *  \return Append status.
+ */
+int32_t flash_append(struct flash_descriptor *flash, uint32_t dst_addr, uint8_t *buffer, uint32_t length);
+
+/** \brief Reads a number of bytes to a page in the internal Flash
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \param[in]  src_addr  Source bytes address to read from flash
+ *  \param[out] buffer    Pointer to a buffer where the content
+ *                        of the read pages will be stored
+ *  \param[in]  length    Number of bytes to read
+ *  \return Read status.
+ */
+int32_t flash_read(struct flash_descriptor *flash, uint32_t src_addr, uint8_t *buffer, uint32_t length);
+
+/** \brief Register a function as FLASH transfer completion callback
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \param[in] type Callback type (\ref flash_cb_type).
+ *  \param[in] func Pointer to callback function.
+ *  \retval 0 Success
+ *  \retval -1 Error
+ */
+int32_t flash_register_callback(struct flash_descriptor *flash, const enum flash_cb_type type, flash_cb_t func);
+
+/** \brief Execute lock in the internal flash
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \param[in]  dst_addr  Destination bytes address aligned with page
+ *                        start to be locked
+ *  \param[in]  page_nums Number of pages to be locked
+ *
+ *  \return Real locked numbers of pages.
+ */
+int32_t flash_lock(struct flash_descriptor *flash, const uint32_t dst_addr, const uint32_t page_nums);
+
+/** \brief Execute unlock in the internal flash
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \param[in]  dst_addr  Destination bytes address aligned with page
+ *                        start to be unlocked
+ *  \param[in]  page_nums Number of pages to be unlocked
+ *
+ *  \return Real unlocked numbers of pages.
+ */
+int32_t flash_unlock(struct flash_descriptor *flash, const uint32_t dst_addr, const uint32_t page_nums);
+
+/** \brief Execute erase in the internal flash
+ *
+ *  \param[in, out] flash Pointer to the HAL FLASH instance.
+ *  \param[in]  dst_addr  Destination bytes address aligned with page
+ *                        start to be erased
+ *  \param[in]  page_nums Number of pages to be erased
+ *  \retval 0 Success
+ *  \retval -1 Error
+ */
+int32_t flash_erase(struct flash_descriptor *flash, const uint32_t dst_addr, const uint32_t page_nums);
+
+/**
+ * \brief Get the flash page size
+ *
+ * \param[in, out] flash Pointer to the HAL FLASH instance
+ *
+ * \return The flash page size
+ */
+uint32_t flash_get_page_size(struct flash_descriptor *flash);
+
+/**
+ * \brief Get the number of flash page
+ *
+ * \param[in, out] flash Pointer to the HAL FLASH instance.
+ *
+ * \return The flash total page numbers
+ */
+uint32_t flash_get_total_pages(struct flash_descriptor *flash);
+
+/** \brief Retrieve the current driver version
+ *
+ *  \return Current driver version.
+ */
+uint32_t flash_get_version(void);
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* ifndef _HAL_FLASH_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_rand_sync.h b/watch-library/hal/include/hal_rand_sync.h
new file mode 100755
index 00000000..9f8cc31e
--- /dev/null
+++ b/watch-library/hal/include/hal_rand_sync.h
@@ -0,0 +1,134 @@
+/**
+ * \file
+ *
+ * \brief Generic Random Number Generator (RAND) functionality declaration.
+ *
+ * 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
+ *
+ */
+
+#ifndef _HAL_RAND_SYNC_H_INCLUDED
+#define _HAL_RAND_SYNC_H_INCLUDED
+
+#include <hpl_rand_sync.h>
+
+#include <utils_assert.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_rand_sync
+ *
+ *@{
+ */
+
+/** Random Number Generator polling device. */
+struct rand_sync_desc {
+	struct _rand_sync_dev dev;
+};
+
+/**
+ *  \brief Initialize the Random Number Generator Driver
+ *  \param[out] desc Pointer to the device descriptor instance struct
+ *  \param[in, out] hw Pointer to the hardware for device instance
+ *  \return Initialization operation result status, ERR_NONE (0) for OK.
+ */
+int32_t rand_sync_init(struct rand_sync_desc *const desc, void *const hw);
+
+/**
+ *  \brief Deinitialize the Random Number Generator Driver
+ *  \param[out] desc Pointer to the device descriptor instance struct
+ */
+void rand_sync_deinit(struct rand_sync_desc *const desc);
+
+/**
+ *  \brief Enable the Random Number Generator Driver
+ *  \param[out] desc Pointer to the device descriptor instance struct
+ *  \return Enable operation result status, ERR_NONE (0) for OK.
+ */
+int32_t rand_sync_enable(struct rand_sync_desc *const desc);
+
+/**
+ *  \brief Disable the Random Number Generator Driver
+ *  \param[out] desc Pointer to the device descriptor instance struct
+ */
+void rand_sync_disable(struct rand_sync_desc *const desc);
+
+/**
+ *  \brief Set seed for the Random Number Generator Driver
+ *  \param[out] desc Pointer to the device descriptor instance struct
+ */
+int32_t rand_sync_set_seed(struct rand_sync_desc *const desc, const uint32_t seed);
+
+/**
+ *  \brief Read the 8-bit Random Number
+ *  \param[in] desc Pointer to the device descriptor instance struct
+ *  \return The random number generated
+ */
+uint8_t rand_sync_read8(const struct rand_sync_desc *const desc);
+
+/**
+ *  \brief Read the 32-bit Random Number
+ *  \param[in] desc Pointer to the device descriptor instance struct
+ *  \return The random number generated
+ */
+uint32_t rand_sync_read32(const struct rand_sync_desc *const desc);
+
+/**
+ *  \brief Read the 8-bit Random Number Sequence into a buffer
+ *  \param[in] desc Pointer to the device descriptor instance struct
+ *  \param[out] buf Pointer to the buffer to fill an array of generated numbers
+ *  \param[in] len Number of random numbers to read
+ */
+void rand_sync_read_buf8(const struct rand_sync_desc *const desc, uint8_t *buf, uint32_t len);
+
+/**
+ *  \brief Read the 32-bit Random Number Sequence into a buffer
+ *  \param[in] desc Pointer to the device descriptor instance struct
+ *  \param[out] buf Pointer to the buffer to fill an array of generated numbers
+ *  \param[in] len Number of random numbers to read
+ */
+void rand_sync_read_buf32(const struct rand_sync_desc *const desc, uint32_t *buf, uint32_t len);
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t rand_sync_get_version(void);
+
+/* I/O read will be used to get random data. */
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HAL_RAND_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_spi_m_sync.h b/watch-library/hal/include/hal_spi_m_sync.h
new file mode 100755
index 00000000..5d040558
--- /dev/null
+++ b/watch-library/hal/include/hal_spi_m_sync.h
@@ -0,0 +1,221 @@
+/**
+ * \file
+ *
+ * \brief SPI related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 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 _HAL_SPI_M_SYNC_H_INCLUDED
+#define _HAL_SPI_M_SYNC_H_INCLUDED
+
+#include <hal_io.h>
+#include <hpl_spi_m_sync.h>
+
+/**
+ * \addtogroup doc_driver_hal_spi_master_sync
+ *
+ * @{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** \brief SPI HAL driver struct for polling mode
+ *
+ */
+struct spi_m_sync_descriptor {
+	struct _spi_m_sync_hpl_interface *func;
+	/** SPI device instance */
+	struct _spi_sync_dev dev;
+	/** I/O read/write */
+	struct io_descriptor io;
+	/** Flags for HAL driver */
+	uint16_t flags;
+};
+
+/** \brief Set the SPI HAL instance function pointer for HPL APIs.
+ *
+ *  Set SPI HAL instance function pointer for HPL APIs.
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *  \param[in] func Pointer to the HPL api structure.
+ *
+ */
+void spi_m_sync_set_func_ptr(struct spi_m_sync_descriptor *spi, void *const func);
+
+/** \brief Initialize SPI HAL instance and hardware for polling mode
+ *
+ *  Initialize SPI HAL with polling mode.
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *  \param[in] hw Pointer to the hardware base.
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval ERR_INVALID_DATA Error, initialized.
+ */
+int32_t spi_m_sync_init(struct spi_m_sync_descriptor *spi, void *const hw);
+
+/** \brief Deinitialize the SPI HAL instance and hardware
+ *
+ *  Abort transfer, disable and reset SPI, deinit software.
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval <0 Error code.
+ */
+void spi_m_sync_deinit(struct spi_m_sync_descriptor *spi);
+
+/** \brief Enable SPI
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval <0 Error code.
+ */
+void spi_m_sync_enable(struct spi_m_sync_descriptor *spi);
+
+/** \brief Disable SPI
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval <0 Error code.
+ */
+void spi_m_sync_disable(struct spi_m_sync_descriptor *spi);
+
+/** \brief Set SPI baudrate
+ *
+ *  Works if SPI is initialized as master, it sets the baudrate.
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *  \param[in] baud_val The target baudrate value
+ *                  (see "baudrate calculation" for calculating the value).
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval ERR_BUSY Busy
+ *  \retval ERR_INVALID_ARG The baudrate is not supported.
+ */
+int32_t spi_m_sync_set_baudrate(struct spi_m_sync_descriptor *spi, const uint32_t baud_val);
+
+/** \brief Set SPI mode
+ *
+ *  Set the SPI transfer mode (\ref spi_transfer_mode),
+ *  which controls the clock polarity and clock phase:
+ *  - Mode 0: leading edge is rising edge, data sample on leading edge.
+ *  - Mode 1: leading edge is rising edge, data sample on trailing edge.
+ *  - Mode 2: leading edge is falling edge, data sample on leading edge.
+ *  - Mode 3: leading edge is falling edge, data sample on trailing edge.
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *  \param[in] mode The mode (0~3).
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval ERR_BUSY Busy
+ *  \retval ERR_INVALID_ARG The mode is not supported.
+ */
+int32_t spi_m_sync_set_mode(struct spi_m_sync_descriptor *spi, const enum spi_transfer_mode mode);
+
+/** \brief Set SPI transfer character size in number of bits
+ *
+ *  The character size (\ref spi_char_size) influence the way the data is
+ *  sent/received.
+ *  For char size <= 8-bit, data is stored byte by byte.
+ *  For char size between 9-bit ~ 16-bit, data is stored in 2-byte length.
+ *  Note that the default and recommended char size is 8-bit since it's
+ *  supported by all system.
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *  \param[in] char_size The char size (~16, recommended 8).
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval ERR_BUSY Busy
+ *  \retval ERR_INVALID_ARG The char size is not supported.
+ */
+int32_t spi_m_sync_set_char_size(struct spi_m_sync_descriptor *spi, const enum spi_char_size char_size);
+
+/** \brief Set SPI transfer data order
+ *
+ *  \param[in] spi Pointer to the HAL SPI instance.
+ *  \param[in] dord The data order: send LSB/MSB first.
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval ERR_BUSY Busy
+ *  \retval ERR_INVALID_ARG The data order is not supported.
+ */
+int32_t spi_m_sync_set_data_order(struct spi_m_sync_descriptor *spi, const enum spi_data_order dord);
+
+/** \brief Perform the SPI data transfer (TX and RX) in polling way
+ *
+ *  Activate CS, do TX and RX and deactivate CS. It blocks.
+ *
+ *  \param[in, out] spi Pointer to the HAL SPI instance.
+ *  \param[in] xfer Pointer to the transfer information (\ref spi_xfer).
+ *
+ *  \retval size Success.
+ *  \retval >=0 Timeout, with number of characters transferred.
+ *  \retval ERR_BUSY SPI is busy
+ */
+int32_t spi_m_sync_transfer(struct spi_m_sync_descriptor *spi, const struct spi_xfer *xfer);
+
+/**
+ * \brief Return the I/O descriptor for this SPI instance
+ *
+ * This function will return an I/O instance for this SPI driver instance.
+ *
+ * \param[in] spi An SPI master descriptor, which is used to communicate through
+ *                SPI
+ * \param[in, out] io A pointer to an I/O descriptor pointer type
+ *
+ * \retval ERR_NONE
+ */
+int32_t spi_m_sync_get_io_descriptor(struct spi_m_sync_descriptor *const spi, struct io_descriptor **io);
+
+/** \brief Retrieve the current driver version
+ *
+ *  \return Current driver version.
+ */
+uint32_t spi_m_sync_get_version(void);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ifndef _HAL_SPI_M_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_usart_sync.h b/watch-library/hal/include/hal_usart_sync.h
new file mode 100755
index 00000000..1ef22fc6
--- /dev/null
+++ b/watch-library/hal/include/hal_usart_sync.h
@@ -0,0 +1,247 @@
+/**
+ * \file
+ *
+ * \brief USART related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 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 _HAL_SYNC_USART_H_INCLUDED
+#define _HAL_SYNC_USART_H_INCLUDED
+
+#include "hal_io.h"
+#include <hpl_usart_sync.h>
+
+/**
+ * \addtogroup doc_driver_hal_usart_sync
+ *
+ * @{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Synchronous USART descriptor
+ */
+struct usart_sync_descriptor {
+	struct io_descriptor      io;
+	struct _usart_sync_device device;
+};
+
+/**
+ * \brief Initialize USART interface
+ *
+ * This function initializes the given I/O descriptor to be used
+ * as USART interface descriptor.
+ * It checks if the given hardware is not initialized and
+ * if the given hardware is permitted to be initialized.
+ *
+ * \param[out] descr A USART descriptor which is used to communicate via USART
+ * \param[in] hw The pointer to hardware instance
+ * \param[in] func The pointer to as set of functions pointers
+ *
+ * \return Initialization status.
+ */
+int32_t usart_sync_init(struct usart_sync_descriptor *const descr, void *const hw, void *const func);
+
+/**
+ * \brief Deinitialize USART interface
+ *
+ * This function deinitializes the given I/O descriptor.
+ * It checks if the given hardware is initialized and
+ * if the given hardware is permitted to be deinitialized.
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ *
+ * \return De-initialization status.
+ */
+int32_t usart_sync_deinit(struct usart_sync_descriptor *const descr);
+
+/**
+ * \brief Enable USART interface
+ *
+ * Enables the USART interface
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ *
+ * \return Enabling status.
+ */
+int32_t usart_sync_enable(struct usart_sync_descriptor *const descr);
+
+/**
+ * \brief Disable USART interface
+ *
+ * Disables the USART interface
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ *
+ * \return Disabling status.
+ */
+int32_t usart_sync_disable(struct usart_sync_descriptor *const descr);
+
+/**
+ * \brief Retrieve I/O descriptor
+ *
+ * This function retrieves the I/O descriptor of the given USART descriptor.
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[out] io An I/O descriptor to retrieve
+ *
+ * \return The status of the I/O descriptor retrieving.
+ */
+int32_t usart_sync_get_io_descriptor(struct usart_sync_descriptor *const descr, struct io_descriptor **io);
+
+/**
+ * \brief Specify action for flow control pins
+ *
+ * This function sets the action (or state) for the flow control pins
+ * if the flow control is enabled.
+ * It sets the state of flow control pins only if the automatic support of
+ * the flow control is not supported by the hardware.
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[in] state A state to set the flow control pins
+ *
+ * \return The status of flow control action setup.
+ */
+int32_t usart_sync_set_flow_control(struct usart_sync_descriptor *const  descr,
+                                    const union usart_flow_control_state state);
+
+/**
+ * \brief Set USART baud rate
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[in] baud_rate A baud rate to set
+ *
+ * \return The status of baud rate setting.
+ */
+int32_t usart_sync_set_baud_rate(struct usart_sync_descriptor *const descr, const uint32_t baud_rate);
+
+/**
+ * \brief Set USART data order
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[in] data_order A data order to set
+ *
+ * \return The status of data order setting.
+ */
+int32_t usart_sync_set_data_order(struct usart_sync_descriptor *const descr, const enum usart_data_order data_order);
+
+/**
+ * \brief Set USART mode
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[in] mode A mode to set
+ *
+ * \return The status of mode setting.
+ */
+int32_t usart_sync_set_mode(struct usart_sync_descriptor *const descr, const enum usart_mode mode);
+
+/**
+ * \brief Set USART parity
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[in] parity A parity to set
+ *
+ * \return The status of parity setting.
+ */
+int32_t usart_sync_set_parity(struct usart_sync_descriptor *const descr, const enum usart_parity parity);
+
+/**
+ * \brief Set USART stop bits
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[in] stop_bits Stop bits to set
+ *
+ * \return The status of stop bits setting.
+ */
+int32_t usart_sync_set_stopbits(struct usart_sync_descriptor *const descr, const enum usart_stop_bits stop_bits);
+
+/**
+ * \brief Set USART character size
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[in] size A character size to set
+ *
+ * \return The status of character size setting.
+ */
+int32_t usart_sync_set_character_size(struct usart_sync_descriptor *const descr, const enum usart_character_size size);
+
+/**
+ * \brief Retrieve the state of flow control pins
+ *
+ * This function retrieves the of flow control pins
+ * if the flow control is enabled.
+ * Function can return USART_FLOW_CONTROL_STATE_UNAVAILABLE in case
+ * if the flow control is done by the hardware
+ * and the pins state cannot be read out.
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ * \param[out] state The state of flow control pins
+ *
+ * \return The status of flow control state reading.
+ */
+int32_t usart_sync_flow_control_status(const struct usart_sync_descriptor *const descr,
+                                       union usart_flow_control_state *const     state);
+
+/**
+ * \brief Check if the USART transmitter is empty
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ *
+ * \return The status of USART TX empty checking.
+ * \retval 0 The USART transmitter is not empty
+ * \retval 1 The USART transmitter is empty
+ */
+int32_t usart_sync_is_tx_empty(const struct usart_sync_descriptor *const descr);
+
+/**
+ * \brief Check if the USART receiver is not empty
+ *
+ * \param[in] descr A USART descriptor which is used to communicate via USART
+ *
+ * \return The status of USART RX empty checking.
+ * \retval 1 The USART receiver is not empty
+ * \retval 0 The USART receiver is empty
+ */
+int32_t usart_sync_is_rx_not_empty(const struct usart_sync_descriptor *const descr);
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t usart_sync_get_version(void);
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HAL_SYNC_USART_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_flash.h b/watch-library/hal/include/hpl_flash.h
new file mode 100755
index 00000000..3a42c448
--- /dev/null
+++ b/watch-library/hal/include/hpl_flash.h
@@ -0,0 +1,265 @@
+/**
+ * \file
+ *
+ * \brief FLASH related functionality declaration.
+ *
+ * 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
+ *
+ */
+#ifndef _HPL_FLASH_H_INCLUDED
+#define _HPL_FLASH_H_INCLUDED
+
+/**
+ * \addtogroup hpl__flash__group FLASH HPL APIs
+ *
+ */
+
+/**@{*/
+
+#include <compiler.h>
+#include "hpl_irq.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief FLASH device structure
+ *
+ * The FLASH device structure forward declaration.
+ */
+struct _flash_device;
+
+/** The callback types */
+enum _flash_cb_type { FLASH_DEVICE_CB_READY, FLASH_DEVICE_CB_ERROR, FLASH_DEVICE_CB_N };
+
+/**
+ * \brief FLASH interrupt handlers structure
+ */
+struct _flash_callback {
+	/** Ready to accept new command handler */
+	void (*ready_cb)(struct _flash_device *device);
+	/** Error handler */
+	void (*error_cb)(struct _flash_device *device);
+};
+
+/**
+ * \brief FLASH descriptor device structure.
+ */
+struct _flash_device {
+	struct _flash_callback flash_cb; /*!< Interrupt handers  */
+	struct _irq_descriptor irq;      /*!< Interrupt descriptor */
+	void *                 hw;       /*!< Hardware module instance handler */
+};
+
+/**
+ * \brief Initialize FLASH.
+ *
+ * This function does low level FLASH configuration.
+ *
+ * \param[in] device The pointer to FLASH device instance
+ * \param[in] hw The pointer to hardware instance
+ *
+ * \return Initialize status.
+ */
+int32_t _flash_init(struct _flash_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize FLASH.
+ *
+ * \param[in] device The pointer to FLASH device instance
+ */
+void _flash_deinit(struct _flash_device *const device);
+
+/**
+ * \brief Reads a number of bytes in the internal Flash.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ * \param[in]  src_addr      Source bytes address to read from flash
+ * \param[out] buffer        Pointer to a buffer where the content
+ *                           of the read page will be stored
+ * \param[in]  length        Number of bytes to read
+ */
+void _flash_read(struct _flash_device *const device, const uint32_t src_addr, uint8_t *buffer, uint32_t length);
+
+/**
+ * \brief Writes a number of bytes in the internal Flash.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ * \param[in]  dst_addr      Destination bytes address to write into flash
+ * \param[in]  buffer        Pointer to buffer where the data to
+ *                           write is stored
+ * \param[in]  length        Number of bytes to write
+ */
+void _flash_write(struct _flash_device *const device, const uint32_t dst_addr, uint8_t *buffer, uint32_t length);
+
+/**
+ * \brief Appends a number of bytes in the internal Flash.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ * \param[in]  dst_addr      Destination bytes address to write into flash
+ * \param[in]  buffer        Pointer to buffer with data to write to flash
+ * \param[in]  length        Number of bytes to write
+ */
+void _flash_append(struct _flash_device *const device, const uint32_t dst_addr, uint8_t *buffer, uint32_t length);
+
+/** \brief Execute lock in the internal flash
+ *  \param[in] device         The pointer to FLASH device instance
+ *  \param[in]  dst_addr      Destination bytes address aligned with page
+ *                            start to be locked
+ *  \param[in]  page_nums     Number of pages to be locked
+ *
+ *  \return Real locked numbers of pages.
+ */
+int32_t _flash_lock(struct _flash_device *const device, const uint32_t dst_addr, uint32_t page_nums);
+
+/** \brief Execute unlock in the internal flash
+ *  \param[in] device         The pointer to FLASH device instance
+ *  \param[in]  dst_addr      Destination bytes address aligned with page
+ *                            start to be unlocked
+ *  \param[in]  page_nums     Number of pages to be unlocked
+ *
+ *  \return Real unlocked numbers of pages.
+ */
+int32_t _flash_unlock(struct _flash_device *const device, const uint32_t dst_addr, uint32_t page_nums);
+
+/** \brief check whether the region which is pointed by address
+ *         is locked
+ *  \param[in] device         The pointer to FLASH device instance
+ *  \param[in]  dst_addr      Destination bytes address to check
+ *
+ *  \return The lock status of assigned address.
+ */
+bool _flash_is_locked(struct _flash_device *const device, const uint32_t dst_addr);
+
+/** \brief Execute erase in the internal flash
+ *  \param[in] device         The pointer to FLASH device instance
+ *  \param[in]  dst_addr      Destination bytes address aligned with page
+ *                            start to be erased
+ *  \param[in]  page_nums     Number of pages to be erased
+ */
+void _flash_erase(struct _flash_device *const device, const uint32_t dst_addr, uint32_t page_nums);
+
+/**
+ * \brief Get the flash page size.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ *
+ * \return The flash page size
+ */
+uint32_t _flash_get_page_size(struct _flash_device *const device);
+
+/**
+ * \brief Get the numbers of flash page.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ *
+ * \return The flash total page numbers
+ */
+uint32_t _flash_get_total_pages(struct _flash_device *const device);
+
+/**
+ * \brief Get the number of wait states for read and write operations.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ *
+ * \return The number of wait states for read and write operations
+ */
+uint8_t _flash_get_wait_state(struct _flash_device *const device);
+
+/**
+ * \brief Set the number of wait states for read and write operations.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ * \param[in] state The number of wait states
+ *
+ */
+void _flash_set_wait_state(struct _flash_device *const device, uint8_t state);
+
+/**
+ * \brief Enable/disable Flash interrupt
+ *
+ * param[in] device The pointer to Flash device instance
+ * param[in] type The type of interrupt to disable/enable if applicable
+ * param[in] state Enable or disable
+ */
+void _flash_set_irq_state(struct _flash_device *const device, const enum _flash_cb_type type, const bool state);
+
+/*
+ * Below RWW flash APIs are only available for device which has RWWEE
+ * flash array, such as SAM C20/C21/D21/L21/L22/R30/DA1/HA1 etc.
+ */
+/**
+ * \brief Get the RWWEE flash page size.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ *
+ * \return The flash page size
+ */
+uint32_t _rww_flash_get_page_size(struct _flash_device *const device);
+
+/**
+ * \brief Get the total page numbers of RWWEE flash.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ *
+ * \return The flash total page numbers
+ */
+uint32_t _rww_flash_get_total_pages(struct _flash_device *const device);
+
+/**
+ * \brief Reads a number of bytes in the internal RWWEE Flash.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ * \param[in]  src_addr      Source bytes address to read from flash
+ * \param[out] buffer        Pointer to a buffer where the content
+ *                           of the read page will be stored
+ * \param[in]  length        Number of bytes to read
+ *
+ * \return Read status, ERR_NONE for successful read.
+ */
+int32_t _rww_flash_read(struct _flash_device *const device, const uint32_t src_addr, uint8_t *buffer, uint32_t length);
+
+/**
+ * \brief Writes a number of bytes in the internal RWWEE Flash.
+ *
+ * \param[in] device         The pointer to FLASH device instance
+ * \param[in]  dst_addr      Destination bytes address to write into flash
+ * \param[in]  buffer        Pointer to buffer where the data to
+ *                           write is stored
+ * \param[in]  length        Number of bytes to write
+ *
+ * \return Write status, ERR_NONE for successful write.
+ */
+int32_t _rww_flash_write(struct _flash_device *const device, const uint32_t dst_addr, uint8_t *buffer, uint32_t length);
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif /* _HPL_FLASH_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_rand_sync.h b/watch-library/hal/include/hpl_rand_sync.h
new file mode 100755
index 00000000..5fdf1340
--- /dev/null
+++ b/watch-library/hal/include/hpl_rand_sync.h
@@ -0,0 +1,99 @@
+/**
+ * \file
+ *
+ * \brief Random Number Generator (RAND) related functionality declaration.
+ *
+ * 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
+ *
+ */
+
+#ifndef _HPL_RAND_SYNC_H_INCLUDED
+#define _HPL_RAND_SYNC_H_INCLUDED
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Random Number Generator polling device. */
+struct _rand_sync_dev {
+	/** Pointer to private data or hardware base */
+	void *prvt;
+	/** Number of bits generated for each read operation */
+	uint8_t n_bits;
+};
+
+/**
+ *  \brief Initialize the Random Number Generator Driver
+ *  \param[out] dev Pointer to the device instance struct
+ *  \param[in, out] hw Pointer to the hardware for device instance
+ *  \return Initialization operation result status, 0 for OK.
+ */
+int32_t _rand_sync_init(struct _rand_sync_dev *const dev, void *const hw);
+
+/**
+ *  \brief Deinitialize the Random Number Generator Driver
+ *  \param[in, out] dev Pointer to the device instance struct
+ */
+void _rand_sync_deinit(struct _rand_sync_dev *const dev);
+
+/**
+ *  \brief Enable the Random Number Generator Driver
+ *  \param[out] dev Pointer to the device instance struct
+ *  \return Enable operation result status, 0 for OK.
+ */
+int32_t _rand_sync_enable(struct _rand_sync_dev *const dev);
+
+/**
+ *  \brief Disable the Random Number Generator Driver
+ *  \param[out] dev Pointer to the device instance struct
+ */
+void _rand_sync_disable(struct _rand_sync_dev *const dev);
+
+/**
+ *  \brief Set seed for the Random Number Generator Driver
+ *  \param[out] dev Pointer to the device instance struct
+ *  \param[in] seed The seed to set
+ *  \return Operation result
+ *  \retval ERR_NONE Operation complete success
+ *  \retval ERR_UNSUPPORTED_OP Seed not supported
+ */
+int32_t _rand_sync_set_seed(struct _rand_sync_dev *const dev, const uint32_t seed);
+
+/**
+ *  \brief Polling random number until it's read back
+ *  \param[in] dev Pointer to the device instance struct
+ *  \return The random number value
+ */
+uint32_t _rand_sync_read_one(const struct _rand_sync_dev *const dev);
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_RAND_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi_dma.h b/watch-library/hal/include/hpl_spi_dma.h
new file mode 100755
index 00000000..04a30158
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi_dma.h
@@ -0,0 +1,88 @@
+/**
+ * \file
+ *
+ * \brief Common SPI DMA 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_SPI_DMA_H_INCLUDED
+#define _HPL_SPI_DMA_H_INCLUDED
+
+#include <hpl_irq.h>
+#include <hpl_dma.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** The callback types */
+enum _spi_dma_dev_cb_type {
+	/** Callback type for DMA transmit. */
+	SPI_DEV_CB_DMA_TX,
+	/** Callback type for DMA receive. */
+	SPI_DEV_CB_DMA_RX,
+	/** Callback type for DMA error. */
+	SPI_DEV_CB_DMA_ERROR,
+	/** Number of callbacks. */
+	SPI_DEV_CB_DMA_N
+};
+
+struct _spi_dma_dev;
+
+/**
+ *  \brief The prototype for callback on SPI DMA.
+ */
+typedef void (*_spi_dma_cb_t)(struct _dma_resource *resource);
+
+/**
+ *  \brief The callbacks offered by SPI driver
+ */
+struct _spi_dma_dev_callbacks {
+	_spi_dma_cb_t tx;
+	_spi_dma_cb_t rx;
+	_spi_dma_cb_t error;
+};
+
+/** SPI driver to support DMA HAL */
+struct _spi_dma_dev {
+	/** Pointer to the hardware base or private data for special device. */
+	void *prvt;
+	/** Pointer to callback functions */
+	struct _spi_dma_dev_callbacks callbacks;
+	/** IRQ instance for SPI device. */
+	struct _irq_descriptor irq;
+	/** DMA resource */
+	struct _dma_resource *resource;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ifndef _HPL_SPI_DMA_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_user_area.h b/watch-library/hal/include/hpl_user_area.h
new file mode 100755
index 00000000..1f14098d
--- /dev/null
+++ b/watch-library/hal/include/hpl_user_area.h
@@ -0,0 +1,123 @@
+/**
+ * \file
+ *
+ * \brief Special user data area access
+ *
+ * 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_USER_DATA_H_INCLUDED
+#define _HPL_USER_DATA_H_INCLUDED
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Read data from user data area
+ *
+ * The user data area could be the area that stores user data that is not erased
+ * with the flash contents, e.g.,
+ * - NVM Software Calibration Area of SAM D/L/C family
+ * - User Signature of SAM E/S/V 70
+ *
+ * \param[in]  base   The base address of the user area
+ * \param[in]  offset The byte offset of the data to be read inside the area
+ * \param[out] buf    Pointer to buffer to place the read data
+ * \param[in]  size   Size of data in number of bytes
+ *
+ * \return Operation status or bytes read.
+ * \retval ERR_NONE Data read successfully
+ * \retval ERR_UNSUPPORTED_OP base address not in any supported user area
+ * \retval ERR_BAD_ADDRESS offset not in right area
+ * \retval ERR_INVALID_ARG offset and size exceeds the right area
+ */
+int32_t _user_area_read(const void *base, const uint32_t offset, uint8_t *buf, const uint32_t size);
+
+/**
+ * \brief Read no more than 32 bits data from user data area
+ *
+ * When reading bits, the bitfield can cross 32-bis boundaries.
+ *
+ * \param[in] base       The base address of the user area
+ * \param[in] bit_offset Offset in number of bits
+ * \param[in] n_bits     Number of bits to read
+ * \return data read, assert if anything wrong (address not in user area
+ *         offset, size error, etc.).
+ */
+uint32_t _user_area_read_bits(const void *base, const uint32_t bit_offset, const uint8_t n_bits);
+
+/**
+ * \brief Write data to user data area
+ *
+ * The user data area could be the area that stores user data that is not erased
+ * with the flash contents, e.g.,
+ * - NVM Software Calibration Area of SAM D/L/C family
+ * - User Signature of SAM E/S/V 70
+ *
+ * When assigned offset and size exceeds the data area, error is reported.
+ *
+ * \param[out] base  The base address of the user area
+ * \param[in]  offset The offset of the data to be written inside the area
+ * \param[in]  buf    Pointer to buffer to place the written data
+ * \param[in]  size   Size of data in number of bytes
+ *
+ * \return Operation status or bytes writting.
+ * \retval ERR_NONE Data written successfully
+ * \retval ERR_UNSUPPORTED_OP base address not in any supported user area
+ * \retval ERR_DENIED Security bit is set
+ * \retval ERR_BAD_ADDRESS offset not in right area
+ * \retval ERR_INVALID_ARG offset and size exceeds the right area
+ */
+int32_t _user_area_write(void *base, const uint32_t offset, const uint8_t *buf, const uint32_t size);
+
+/**
+ * \brief Write no more than 32 bits data to user data area
+ *
+ * When writting bits, the bitfield can cross 32-bis boundaries.
+ *
+ * \param[out] base       The base address of the user area
+ * \param[in]  bit_offset Offset in number of bits
+ * \param[in]  bits       The data content
+ * \param[in]  n_bits     Number of bits to write
+ * \return Operation result
+ * \retval ERR_NONE Data written successfully
+ * \retval ERR_UNSUPPORTED_OP base address not in any supported user area
+ * \retval ERR_DENIED Security bit is set
+ * \retval ERR_BAD_ADDRESS offset not in right area
+ * \retval ERR_INVALID_ARG offset and size exceeds the right area
+ */
+int32_t _user_area_write_bits(void *base, const uint32_t bit_offset, const uint32_t bits, const uint8_t n_bits);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HPL_USER_DATA_H_INCLUDED */