mirror of
https://github.com/bluekitchen/btstack.git
synced 2025-01-27 06:35:20 +00:00
161 lines
5.7 KiB
C
161 lines
5.7 KiB
C
/**
|
|
* \file
|
|
*
|
|
* \brief Universal Asynchronous Receiver Transceiver (UART) driver for SAM.
|
|
*
|
|
* Copyright (c) 2011-2015 Atmel Corporation. All rights reserved.
|
|
*
|
|
* \asf_license_start
|
|
*
|
|
* \page License
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. 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.
|
|
*
|
|
* 3. The name of Atmel may not be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* 4. This software may only be redistributed and used in connection with an
|
|
* Atmel microcontroller product.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
|
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
|
|
*
|
|
* \asf_license_stop
|
|
*
|
|
*/
|
|
/*
|
|
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
|
|
*/
|
|
|
|
#ifndef UART_H_INCLUDED
|
|
#define UART_H_INCLUDED
|
|
|
|
#include "compiler.h"
|
|
|
|
/// @cond 0
|
|
/**INDENT-OFF**/
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
/**INDENT-ON**/
|
|
/// @endcond
|
|
|
|
/* UART internal div factor for sampling */
|
|
#define UART_MCK_DIV 16
|
|
/* Div factor to get the maximum baud rate */
|
|
#define UART_MCK_DIV_MIN_FACTOR 1
|
|
/* Div factor to get the minimum baud rate */
|
|
#define UART_MCK_DIV_MAX_FACTOR 65535
|
|
|
|
/*! \brief Option list for UART peripheral initialization */
|
|
typedef struct sam_uart_opt {
|
|
/** MCK for UART */
|
|
uint32_t ul_mck;
|
|
/** Expected baud rate */
|
|
uint32_t ul_baudrate;
|
|
/** Initialize value for UART mode register */
|
|
uint32_t ul_mode;
|
|
} sam_uart_opt_t;
|
|
|
|
uint32_t uart_init(Uart *p_uart, const sam_uart_opt_t *p_uart_opt);
|
|
void uart_enable_tx(Uart *p_uart);
|
|
void uart_disable_tx(Uart *p_uart);
|
|
void uart_reset_tx(Uart *p_uart);
|
|
void uart_enable_rx(Uart *p_uart);
|
|
void uart_disable_rx(Uart *p_uart);
|
|
void uart_reset_rx(Uart *p_uart);
|
|
void uart_enable(Uart *p_uart);
|
|
void uart_disable(Uart *p_uart);
|
|
void uart_reset(Uart *p_uart);
|
|
void uart_enable_interrupt(Uart *p_uart, uint32_t ul_sources);
|
|
void uart_disable_interrupt(Uart *p_uart, uint32_t ul_sources);
|
|
uint32_t uart_get_interrupt_mask(Uart *p_uart);
|
|
uint32_t uart_get_status(Uart *p_uart);
|
|
void uart_reset_status(Uart *p_uart);
|
|
uint32_t uart_is_tx_ready(Uart *p_uart);
|
|
uint32_t uart_is_tx_empty(Uart *p_uart);
|
|
uint32_t uart_is_rx_ready(Uart *p_uart);
|
|
uint32_t uart_is_tx_buf_empty(Uart *p_uart);
|
|
void uart_set_clock_divisor(Uart *p_uart, uint16_t us_divisor);
|
|
uint32_t uart_write(Uart *p_uart, const uint8_t uc_data);
|
|
uint32_t uart_read(Uart *p_uart, uint8_t *puc_data);
|
|
#if (!SAMV71 && !SAMV70 && !SAME70 && !SAMS70)
|
|
uint32_t uart_is_rx_buf_end(Uart *p_uart);
|
|
uint32_t uart_is_tx_buf_end(Uart *p_uart);
|
|
uint32_t uart_is_rx_buf_full(Uart *p_uart);
|
|
Pdc *uart_get_pdc_base(Uart *p_uart);
|
|
#endif
|
|
#if (SAMG53 || SAMG54 || SAMV71 || SAMV70 || SAME70 || SAMS70)
|
|
void uart_set_sleepwalking(Uart *p_uart, uint8_t ul_low_value,
|
|
bool cmpmode, bool cmppar, uint8_t ul_high_value);
|
|
void uart_set_write_protection(Uart *p_uart, bool flag);
|
|
#endif
|
|
|
|
#if (SAM4C || SAM4CP || SAM4CM)
|
|
enum uart_optical_duty_cycle {
|
|
UART_MOD_CLK_DUTY_50_00 = UART_MR_OPT_DUTY_DUTY_50,
|
|
UART_MOD_CLK_DUTY_43_75 = UART_MR_OPT_DUTY_DUTY_43P75,
|
|
UART_MOD_CLK_DUTY_37_50 = UART_MR_OPT_DUTY_DUTY_37P5,
|
|
UART_MOD_CLK_DUTY_31_25 = UART_MR_OPT_DUTY_DUTY_31P25,
|
|
UART_MOD_CLK_DUTY_25_00 = UART_MR_OPT_DUTY_DUTY_25,
|
|
UART_MOD_CLK_DUTY_18_75 = UART_MR_OPT_DUTY_DUTY_18P75,
|
|
UART_MOD_CLK_DUTY_12_50 = UART_MR_OPT_DUTY_DUTY_12P5,
|
|
UART_MOD_CLK_DUTY_06_25 = UART_MR_OPT_DUTY_DUTY_6P25,
|
|
};
|
|
|
|
enum uart_optical_cmp_threshold {
|
|
UART_RX_CMP_THRESHOLD_VDDIO_DIV_10_0 = UART_MR_OPT_CMPTH_VDDIO_DIV10,
|
|
UART_RX_CMP_THRESHOLD_VDDIO_DIV_5_0 = UART_MR_OPT_CMPTH_VDDIO_DIV5,
|
|
UART_RX_CMP_THRESHOLD_VDDIO_DIV_3_3 = UART_MR_OPT_CMPTH_VDDIO_DIV3P3,
|
|
UART_RX_CMP_THRESHOLD_VDDIO_DIV_2_5 = UART_MR_OPT_CMPTH_VDDIO_DIV2P5,
|
|
UART_RX_CMP_THRESHOLD_VDDIO_DIV_2_0 = UART_MR_OPT_CMPTH_VDDIO_DIV2,
|
|
};
|
|
|
|
struct uart_config_optical {
|
|
/* UART Receive Data Inverted */
|
|
bool rx_inverted;
|
|
/* UART Modulated Data Inverted */
|
|
bool tx_inverted;
|
|
/* UART Receiver Digital Filter */
|
|
bool rx_filter;
|
|
/* Optical Link Clock Divider */
|
|
uint8_t clk_div;
|
|
/* Optical Link Modulation Clock Duty Cycle */
|
|
enum uart_optical_duty_cycle duty;
|
|
/* Receive Path Comparator Threshold */
|
|
enum uart_optical_cmp_threshold threshold;
|
|
};
|
|
|
|
void uart_enable_optical_interface(Uart *p_uart);
|
|
void uart_disable_optical_interface(Uart *p_uart);
|
|
void uart_config_optical_interface(Uart *p_uart,
|
|
struct uart_config_optical *cfg);
|
|
#endif
|
|
|
|
/// @cond 0
|
|
/**INDENT-OFF**/
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
/**INDENT-ON**/
|
|
/// @endcond
|
|
|
|
#endif /* UART_H_INCLUDED */
|