You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
271 lines
7.8 KiB
C
271 lines
7.8 KiB
C
/**
|
|
* \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 _HPL_USART_ASYNC_H_INCLUDED
|
|
#define _HPL_USART_ASYNC_H_INCLUDED
|
|
|
|
/**
|
|
* \addtogroup HPL USART
|
|
*
|
|
* \section hpl_usart_rev Revision History
|
|
* - v1.0.0 Initial Release
|
|
*
|
|
*@{
|
|
*/
|
|
|
|
#include "hpl_usart.h"
|
|
#include "hpl_irq.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \brief USART callback types
|
|
*/
|
|
enum _usart_async_callback_type { USART_ASYNC_BYTE_SENT, USART_ASYNC_RX_DONE, USART_ASYNC_TX_DONE, USART_ASYNC_ERROR };
|
|
|
|
/**
|
|
* \brief USART device structure
|
|
*
|
|
* The USART device structure forward declaration.
|
|
*/
|
|
struct _usart_async_device;
|
|
|
|
/**
|
|
* \brief USART interrupt callbacks
|
|
*/
|
|
struct _usart_async_callbacks {
|
|
void (*tx_byte_sent)(struct _usart_async_device *device);
|
|
void (*rx_done_cb)(struct _usart_async_device *device, uint8_t data);
|
|
void (*tx_done_cb)(struct _usart_async_device *device);
|
|
void (*error_cb)(struct _usart_async_device *device);
|
|
};
|
|
|
|
/**
|
|
* \brief USART descriptor device structure
|
|
*/
|
|
struct _usart_async_device {
|
|
struct _usart_async_callbacks usart_cb;
|
|
struct _irq_descriptor irq;
|
|
void * hw;
|
|
};
|
|
/**
|
|
* \name HPL functions
|
|
*/
|
|
//@{
|
|
/**
|
|
* \brief Initialize asynchronous USART
|
|
*
|
|
* This function does low level USART configuration.
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] hw The pointer to hardware instance
|
|
*
|
|
* \return Initialization status
|
|
*/
|
|
int32_t _usart_async_init(struct _usart_async_device *const device, void *const hw);
|
|
|
|
/**
|
|
* \brief Deinitialize USART
|
|
*
|
|
* This function closes the given USART by disabling its clock.
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
*/
|
|
void _usart_async_deinit(struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Enable usart module
|
|
*
|
|
* This function will enable the usart module
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
*/
|
|
void _usart_async_enable(struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Disable usart module
|
|
*
|
|
* This function will disable the usart module
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
*/
|
|
void _usart_async_disable(struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Calculate baud rate register value
|
|
*
|
|
* \param[in] baud Required baud rate
|
|
* \param[in] clock_rate clock frequency
|
|
* \param[in] samples The number of samples
|
|
* \param[in] mode USART mode
|
|
* \param[in] fraction A fraction value
|
|
*
|
|
* \return Calculated baud rate register value
|
|
*/
|
|
uint16_t _usart_async_calculate_baud_rate(const uint32_t baud, const uint32_t clock_rate, const uint8_t samples,
|
|
const enum usart_baud_rate_mode mode, const uint8_t fraction);
|
|
|
|
/**
|
|
* \brief Set baud rate
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] baud_rate A baud rate to set
|
|
*/
|
|
void _usart_async_set_baud_rate(struct _usart_async_device *const device, const uint32_t baud_rate);
|
|
|
|
/**
|
|
* \brief Set data order
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] order A data order to set
|
|
*/
|
|
void _usart_async_set_data_order(struct _usart_async_device *const device, const enum usart_data_order order);
|
|
|
|
/**
|
|
* \brief Set mode
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] mode A mode to set
|
|
*/
|
|
void _usart_async_set_mode(struct _usart_async_device *const device, const enum usart_mode mode);
|
|
|
|
/**
|
|
* \brief Set parity
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] parity A parity to set
|
|
*/
|
|
void _usart_async_set_parity(struct _usart_async_device *const device, const enum usart_parity parity);
|
|
|
|
/**
|
|
* \brief Set stop bits mode
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] stop_bits A stop bits mode to set
|
|
*/
|
|
void _usart_async_set_stop_bits(struct _usart_async_device *const device, const enum usart_stop_bits stop_bits);
|
|
|
|
/**
|
|
* \brief Set character size
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] size A character size to set
|
|
*/
|
|
void _usart_async_set_character_size(struct _usart_async_device *const device, const enum usart_character_size size);
|
|
|
|
/**
|
|
* \brief Retrieve usart status
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
*/
|
|
uint32_t _usart_async_get_status(const struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Write a byte to the given USART instance
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] data Data to write
|
|
*/
|
|
void _usart_async_write_byte(struct _usart_async_device *const device, uint8_t data);
|
|
|
|
/**
|
|
* \brief Check if USART is ready to send next byte
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
*
|
|
* \return Status of the ready check.
|
|
* \retval true if the USART is ready to send next byte
|
|
* \retval false if the USART is not ready to send next byte
|
|
*/
|
|
bool _usart_async_is_byte_sent(const struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Set the state of flow control pins
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
* \param[in] state - A state of flow control pins to set
|
|
*/
|
|
void _usart_async_set_flow_control_state(struct _usart_async_device *const device,
|
|
const union usart_flow_control_state state);
|
|
|
|
/**
|
|
* \brief Retrieve the state of flow control pins
|
|
*
|
|
* This function retrieves the of flow control pins.
|
|
*
|
|
* \return USART_FLOW_CONTROL_STATE_UNAVAILABLE.
|
|
*/
|
|
union usart_flow_control_state _usart_async_get_flow_control_state(const struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Enable data register empty interrupt
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
*/
|
|
void _usart_async_enable_byte_sent_irq(struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Enable transmission complete interrupt
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
*/
|
|
void _usart_async_enable_tx_done_irq(struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Retrieve ordinal number of the given USART hardware instance
|
|
*
|
|
* \param[in] device The pointer to USART device instance
|
|
*
|
|
* \return The ordinal number of the given USART hardware instance
|
|
*/
|
|
uint8_t _usart_async_get_hardware_index(const struct _usart_async_device *const device);
|
|
|
|
/**
|
|
* \brief Enable/disable USART interrupt
|
|
*
|
|
* param[in] device The pointer to USART device instance
|
|
* param[in] type The type of interrupt to disable/enable if applicable
|
|
* param[in] state Enable or disable
|
|
*/
|
|
void _usart_async_set_irq_state(struct _usart_async_device *const device, const enum _usart_async_callback_type type,
|
|
const bool state);
|
|
//@}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
/**@}*/
|
|
#endif /* _HPL_USART_ASYNC_H_INCLUDED */
|