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/* -*- c -*- */
/*
* Copyright 2007,2008 Free Software Foundation, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_HAL_UART_H
#define INCLUDED_HAL_UART_H
/*!
* \brief uart mode flags
*/
#define UART_MODE_RAW 0x0000 // no mapping on input or output
#define UART_MODE_ONLCR 0x0001 // map \n to \r\n on output (default)
#define DEFAULT_UART UART_DEBUG //which UART printf, gets, etc. use
typedef enum {
US_9600 = 0,
US_19200 = 1,
US_38400 = 2,
US_57600 = 3,
US_115200 = 4,
US_230400 = 5
} hal_uart_speed_t;
typedef struct {
hal_uart_speed_t speed;
} hal_uart_config_t;
typedef enum {
UART_DEBUG = 0,
UART_EXP = 1,
UART_GPS = 2
} hal_uart_name_t;
/*
* \brief Set uart mode
*/
void hal_uart_set_mode(hal_uart_name_t uart, int flags);
/*!
* \brief one-time call to init
*/
void hal_uart_init(void);
/*!
* \brief Set uart parameters
* Default is 115,200 bps, 8N1.
*/
void hal_uart_set_config(const hal_uart_config_t *c);
/*!
* \brief Get uart configuation.
*/
void hal_uart_get_config(hal_uart_config_t *c);
/*!
* \brief Enqueue \p ch for output over serial port
*/
void hal_uart_putc(hal_uart_name_t u, int ch);
/*!
* \brief Enqueue \p ch for output over serial port, silent fail if queue is full
*/
void hal_uart_putc_nowait(hal_uart_name_t u, int ch);
/*
* \brief Blocking read of next char from serial port
*/
int hal_uart_getc(hal_uart_name_t u);
/*
* \brief Non-blocking read of next char from serial port, return -1 if nothing available
*/
int hal_uart_getc_noblock(hal_uart_name_t u);
int hal_uart_rx_flush(hal_uart_name_t u);
#endif /* INCLUDED_HAL_UART_H */
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