6edbd845eb
* Add BIOI Keyboards Add keyboards from BIOI, including dual-mode G60, Morgan65, and S65 * Update keyboards/bioi/g60/config.h Co-authored-by: Ryan <fauxpark@gmail.com> * Update keyboards/bioi/g60/config.h Co-authored-by: Ryan <fauxpark@gmail.com> * Update keyboards/bioi/g60/g60.c Co-authored-by: Ryan <fauxpark@gmail.com> * Update keyboards/bioi/g60/config.h Co-authored-by: Ryan <fauxpark@gmail.com> * Apply suggestions from code review Co-authored-by: Ryan <fauxpark@gmail.com> * Rename rule.mk to rules.mk * Rename rule.mk to rules.mk * Rename rule.mk to rules.mk * Update readme.md * Apply suggestions from code review Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com> * Update ble.h * Update config.h Change VenderID to 8101 * Update config.h * Update config.h * Update ble.c * Update ble.h * Add license headers * Apply suggestions from code review Co-authored-by: Drashna Jaelre <drashna@live.com> * Add license header in keymap files * Fix year in license header * Update keyboards/bioi/s65/readme.md Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com> Co-authored-by: Ryan <fauxpark@gmail.com> Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com> Co-authored-by: Drashna Jaelre <drashna@live.com>
437 lines
17 KiB
C
437 lines
17 KiB
C
#ifndef USART_H
|
|
#define USART_H
|
|
|
|
/************************************************************************
|
|
Title: Interrupt UART library with receive/transmit circular buffers
|
|
Author: Andy Gock
|
|
Software: AVR-GCC 4.1, AVR Libc 1.4
|
|
Hardware: any AVR with built-in UART, tested on AT90S8515 & ATmega8 at 4 Mhz
|
|
License: GNU General Public License
|
|
Usage: see README.md and Doxygen manual
|
|
|
|
Based on original library by Peter Fluery, Tim Sharpe, Nicholas Zambetti.
|
|
|
|
https://github.com/andygock/avr-uart
|
|
|
|
LICENSE:
|
|
|
|
Copyright (C) 2012 Andy Gock
|
|
Copyright (C) 2006 Peter Fleury
|
|
|
|
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 2 of the License, or
|
|
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.
|
|
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
uart_available, uart_flush, uart1_available, and uart1_flush functions
|
|
were adapted from the Arduino HardwareSerial.h library by Tim Sharpe on
|
|
11 Jan 2009. The license info for HardwareSerial.h is as follows:
|
|
|
|
HardwareSerial.h - Hardware serial library for Wiring
|
|
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
************************************************************************/
|
|
|
|
/**
|
|
* @defgroup avr-uart UART Library
|
|
* @code #include <uart.h> @endcode
|
|
*
|
|
* @brief Interrupt UART library using the built-in UART with transmit and receive circular buffers.
|
|
* @see README.md
|
|
*
|
|
* This library can be used to transmit and receive data through the built in UART.
|
|
*
|
|
* An interrupt is generated when the UART has finished transmitting or
|
|
* receiving a byte. The interrupt handling routines use circular buffers
|
|
* for buffering received and transmitted data.
|
|
*
|
|
* The UART_RXn_BUFFER_SIZE and UART_TXn_BUFFER_SIZE constants define
|
|
* the size of the circular buffers in bytes. Note that these constants must be a power of 2.
|
|
*
|
|
* You need to define these buffer sizes as a symbol in your compiler settings or in uart.h
|
|
*
|
|
* See README.md for more detailed information. Especially that relating to symbols: USARTn_ENABLED and USARTn_LARGE_BUFFER
|
|
*
|
|
* @author Andy Gock <andy@gock.net>
|
|
* @note Based on Atmel Application Note AVR306 and original library by Peter Fleury and Tim Sharpe.
|
|
*/
|
|
|
|
/**@{*/
|
|
#include <stdint.h>
|
|
#include <avr/io.h>
|
|
|
|
#if (__GNUC__ * 100 + __GNUC_MINOR__) < 304
|
|
#error "This library requires AVR-GCC 3.4 or later, update to newer AVR-GCC compiler !"
|
|
#endif
|
|
|
|
/*
|
|
* constants and macros
|
|
*/
|
|
|
|
/* Enable USART 1, 2, 3 as required */
|
|
/* Can be defined in compiler symbol setup with -D option (preferred) */
|
|
#ifndef USART0_ENABLED
|
|
#define USART0_ENABLED /**< Enable USART0 */
|
|
#endif
|
|
//#define USART1_ENABLED
|
|
//#define USART2_ENABLED
|
|
//#define USART3_ENABLED
|
|
|
|
/* Set size of receive and transmit buffers */
|
|
|
|
#ifndef UART_RX0_BUFFER_SIZE
|
|
#define UART_RX0_BUFFER_SIZE 128 /**< Size of the circular receive buffer, must be power of 2 */
|
|
#endif
|
|
#ifndef UART_RX1_BUFFER_SIZE
|
|
#define UART_RX1_BUFFER_SIZE 128 /**< Size of the circular receive buffer, must be power of 2 */
|
|
#endif
|
|
#ifndef UART_RX2_BUFFER_SIZE
|
|
#define UART_RX2_BUFFER_SIZE 128 /**< Size of the circular receive buffer, must be power of 2 */
|
|
#endif
|
|
#ifndef UART_RX3_BUFFER_SIZE
|
|
#define UART_RX3_BUFFER_SIZE 128 /**< Size of the circular receive buffer, must be power of 2 */
|
|
#endif
|
|
|
|
#ifndef UART_TX0_BUFFER_SIZE
|
|
#define UART_TX0_BUFFER_SIZE 128 /**< Size of the circular transmit buffer, must be power of 2 */
|
|
#endif
|
|
#ifndef UART_TX1_BUFFER_SIZE
|
|
#define UART_TX1_BUFFER_SIZE 128 /**< Size of the circular transmit buffer, must be power of 2 */
|
|
#endif
|
|
#ifndef UART_TX2_BUFFER_SIZE
|
|
#define UART_TX2_BUFFER_SIZE 128 /**< Size of the circular transmit buffer, must be power of 2 */
|
|
#endif
|
|
#ifndef UART_TX3_BUFFER_SIZE
|
|
#define UART_TX3_BUFFER_SIZE 128 /**< Size of the circular transmit buffer, must be power of 2 */
|
|
#endif
|
|
|
|
/* Check buffer sizes are not too large for 8-bit positioning */
|
|
|
|
#if (UART_RX0_BUFFER_SIZE > 256 & !defined(USART0_LARGE_BUFFER))
|
|
#error "Buffer too large, please use -DUSART0_LARGE_BUFFER switch in compiler options"
|
|
#endif
|
|
|
|
#if (UART_RX1_BUFFER_SIZE > 256 & !defined(USART1_LARGE_BUFFER))
|
|
#error "Buffer too large, please use -DUSART1_LARGE_BUFFER switch in compiler options"
|
|
#endif
|
|
|
|
#if (UART_RX2_BUFFER_SIZE > 256 & !defined(USART2_LARGE_BUFFER))
|
|
#error "Buffer too large, please use -DUSART2_LARGE_BUFFER switch in compiler options"
|
|
#endif
|
|
|
|
#if (UART_RX3_BUFFER_SIZE > 256 & !defined(USART3_LARGE_BUFFER))
|
|
#error "Buffer too large, please use -DUSART3_LARGE_BUFFER switch in compiler options"
|
|
#endif
|
|
|
|
/* Check buffer sizes are not too large for *_LARGE_BUFFER operation (16-bit positioning) */
|
|
|
|
#if (UART_RX0_BUFFER_SIZE > 32768)
|
|
#error "Buffer too large, maximum allowed is 32768 bytes"
|
|
#endif
|
|
|
|
#if (UART_RX1_BUFFER_SIZE > 32768)
|
|
#error "Buffer too large, maximum allowed is 32768 bytes"
|
|
#endif
|
|
|
|
#if (UART_RX2_BUFFER_SIZE > 32768)
|
|
#error "Buffer too large, maximum allowed is 32768 bytes"
|
|
#endif
|
|
|
|
#if (UART_RX3_BUFFER_SIZE > 32768)
|
|
#error "Buffer too large, maximum allowed is 32768 bytes"
|
|
#endif
|
|
|
|
/** @brief UART Baudrate Expression
|
|
* @param xtalCpu system clock in Mhz, e.g. 4000000L for 4Mhz
|
|
* @param baudRate baudrate in bps, e.g. 1200, 2400, 9600
|
|
*/
|
|
#define UART_BAUD_SELECT(baudRate,xtalCpu) (((xtalCpu)+8UL*(baudRate))/(16UL*(baudRate))-1UL)
|
|
|
|
/** @brief UART Baudrate Expression for ATmega double speed mode
|
|
* @param xtalCpu system clock in Mhz, e.g. 4000000L for 4Mhz
|
|
* @param baudRate baudrate in bps, e.g. 1200, 2400, 9600
|
|
*/
|
|
#define UART_BAUD_SELECT_DOUBLE_SPEED(baudRate,xtalCpu) ((((xtalCpu)+4UL*(baudRate))/(8UL*(baudRate))-1)|0x8000)
|
|
|
|
/* test if the size of the circular buffers fits into SRAM */
|
|
|
|
#if defined(USART0_ENABLED) && ( (UART_RX0_BUFFER_SIZE+UART_TX0_BUFFER_SIZE) >= (RAMEND-0x60))
|
|
#error "size of UART_RX0_BUFFER_SIZE + UART_TX0_BUFFER_SIZE larger than size of SRAM"
|
|
#endif
|
|
|
|
#if defined(USART1_ENABLED) && ( (UART_RX1_BUFFER_SIZE+UART_TX1_BUFFER_SIZE) >= (RAMEND-0x60))
|
|
#error "size of UART_RX1_BUFFER_SIZE + UART_TX1_BUFFER_SIZE larger than size of SRAM"
|
|
#endif
|
|
|
|
#if defined(USART2_ENABLED) && ( (UART_RX2_BUFFER_SIZE+UART_RX2_BUFFER_SIZE) >= (RAMEND-0x60))
|
|
#error "size of UART_RX2_BUFFER_SIZE + UART_TX2_BUFFER_SIZE larger than size of SRAM"
|
|
#endif
|
|
|
|
#if defined(USART3_ENABLED) && ( (UART_RX3_BUFFER_SIZE+UART_RX3_BUFFER_SIZE) >= (RAMEND-0x60))
|
|
#error "size of UART_RX3_BUFFER_SIZE + UART_TX3_BUFFER_SIZE larger than size of SRAM"
|
|
#endif
|
|
|
|
/*
|
|
** high byte error return code of uart_getc()
|
|
*/
|
|
#define UART_FRAME_ERROR 0x0800 /**< Framing Error by UART */
|
|
#define UART_OVERRUN_ERROR 0x0400 /**< Overrun condition by UART */
|
|
#define UART_BUFFER_OVERFLOW 0x0200 /**< receive ringbuffer overflow */
|
|
#define UART_NO_DATA 0x0100 /**< no receive data available */
|
|
|
|
/* Macros, to allow use of legacy names */
|
|
|
|
/** @brief Macro to initialize USART0 (only available on selected ATmegas) @see uart0_init */
|
|
#define uart_init(b) uart0_init(b)
|
|
|
|
/** @brief Macro to get received byte of USART0 from ringbuffer. (only available on selected ATmega) @see uart0_getc */
|
|
#define uart_getc() uart0_getc()
|
|
|
|
/** @brief Macro to peek at next byte in USART0 ringbuffer */
|
|
#define uart_peek() uart0_peek()
|
|
|
|
/** @brief Macro to put byte to ringbuffer for transmitting via USART0 (only available on selected ATmega) @see uart0_putc */
|
|
#define uart_putc(d) uart0_putc(d)
|
|
|
|
/** @brief Macro to put string to ringbuffer for transmitting via USART0 (only available on selected ATmega) @see uart0_puts */
|
|
#define uart_puts(s) uart0_puts(s)
|
|
|
|
/** @brief Macro to put string from program memory to ringbuffer for transmitting via USART0 (only available on selected ATmega) @see uart0_puts_p */
|
|
#define uart_puts_p(s) uart0_puts_p(s)
|
|
|
|
/** @brief Macro to return number of bytes waiting in the receive buffer of USART0 @see uart0_available */
|
|
#define uart_available() uart0_available()
|
|
|
|
/** @brief Macro to flush bytes waiting in receive buffer of USART0 @see uart0_flush */
|
|
#define uart_flush() uart0_flush()
|
|
|
|
/*
|
|
** function prototypes
|
|
*/
|
|
|
|
/**
|
|
@brief Initialize UART and set baudrate
|
|
@param baudrate Specify baudrate using macro UART_BAUD_SELECT()
|
|
@return none
|
|
*/
|
|
/*extern*/void uart0_init(uint16_t baudrate);
|
|
|
|
|
|
/**
|
|
* @brief Get received byte from ringbuffer
|
|
*
|
|
* Returns in the lower byte the received character and in the
|
|
* higher byte the last receive error.
|
|
* UART_NO_DATA is returned when no data is available.
|
|
*
|
|
* @return lower byte: received byte from ringbuffer
|
|
* @return higher byte: last receive status
|
|
* - \b 0 successfully received data from UART
|
|
* - \b UART_NO_DATA
|
|
* <br>no receive data available
|
|
* - \b UART_BUFFER_OVERFLOW
|
|
* <br>Receive ringbuffer overflow.
|
|
* We are not reading the receive buffer fast enough,
|
|
* one or more received character have been dropped
|
|
* - \b UART_OVERRUN_ERROR
|
|
* <br>Overrun condition by UART.
|
|
* A character already present in the UART UDR register was
|
|
* not read by the interrupt handler before the next character arrived,
|
|
* one or more received characters have been dropped.
|
|
* - \b UART_FRAME_ERROR
|
|
* <br>Framing Error by UART
|
|
*/
|
|
/*extern*/uint16_t uart0_getc(void);
|
|
|
|
/**
|
|
* @brief Peek at next byte in ringbuffer
|
|
*
|
|
* Returns the next byte (character) of incoming UART data without removing it from the
|
|
* internal ring buffer. That is, successive calls to uartN_peek() will return the same
|
|
* character, as will the next call to uartN_getc().
|
|
*
|
|
* UART_NO_DATA is returned when no data is available.
|
|
*
|
|
* @return lower byte: next byte in ringbuffer
|
|
* @return higher byte: last receive status
|
|
* - \b 0 successfully received data from UART
|
|
* - \b UART_NO_DATA
|
|
* <br>no receive data available
|
|
* - \b UART_BUFFER_OVERFLOW
|
|
* <br>Receive ringbuffer overflow.
|
|
* We are not reading the receive buffer fast enough,
|
|
* one or more received character have been dropped
|
|
* - \b UART_OVERRUN_ERROR
|
|
* <br>Overrun condition by UART.
|
|
* A character already present in the UART UDR register was
|
|
* not read by the interrupt handler before the next character arrived,
|
|
* one or more received characters have been dropped.
|
|
* - \b UART_FRAME_ERROR
|
|
* <br>Framing Error by UART
|
|
*/
|
|
/*extern*/uint16_t uart0_peek(void);
|
|
|
|
/**
|
|
* @brief Put byte to ringbuffer for transmitting via UART
|
|
* @param data byte to be transmitted
|
|
* @return none
|
|
*/
|
|
/*extern*/void uart0_putc(uint8_t data);
|
|
|
|
|
|
/**
|
|
* @brief Put string to ringbuffer for transmitting via UART
|
|
*
|
|
* The string is buffered by the uart library in a circular buffer
|
|
* and one character at a time is transmitted to the UART using interrupts.
|
|
* Blocks if it can not write the whole string into the circular buffer.
|
|
*
|
|
* @param s string to be transmitted
|
|
* @return none
|
|
*/
|
|
/*extern*/void uart0_puts(const char *s);
|
|
|
|
|
|
/**
|
|
* @brief Put string from program memory to ringbuffer for transmitting via UART.
|
|
*
|
|
* The string is buffered by the uart library in a circular buffer
|
|
* and one character at a time is transmitted to the UART using interrupts.
|
|
* Blocks if it can not write the whole string into the circular buffer.
|
|
*
|
|
* @param s program memory string to be transmitted
|
|
* @return none
|
|
* @see uart0_puts_P
|
|
*/
|
|
/*extern*/void uart0_puts_p(const char *s);
|
|
|
|
/**
|
|
* @brief Macro to automatically put a string constant into program memory
|
|
* \param __s string in program memory
|
|
*/
|
|
#define uart_puts_P(__s) uart0_puts_p(PSTR(__s))
|
|
|
|
/** @brief Macro to automatically put a string constant into program memory */
|
|
#define uart0_puts_P(__s) uart0_puts_p(PSTR(__s))
|
|
|
|
/**
|
|
* @brief Return number of bytes waiting in the receive buffer
|
|
* @return bytes waiting in the receive buffer
|
|
*/
|
|
/*extern*/uint16_t uart0_available(void);
|
|
|
|
/**
|
|
* @brief Flush bytes waiting in receive buffer
|
|
*/
|
|
/*extern*/void uart0_flush(void);
|
|
|
|
|
|
/** @brief Initialize USART1 (only available on selected ATmegas) @see uart_init */
|
|
/*extern*/void uart1_init(uint16_t baudrate);
|
|
|
|
/** @brief Get received byte of USART1 from ringbuffer. (only available on selected ATmega) @see uart_getc */
|
|
/*extern*/uint16_t uart1_getc(void);
|
|
|
|
/** @brief Peek at next byte in USART1 ringbuffer */
|
|
/*extern*/uint16_t uart1_peek(void);
|
|
|
|
/** @brief Put byte to ringbuffer for transmitting via USART1 (only available on selected ATmega) @see uart_putc */
|
|
/*extern*/void uart1_putc(uint8_t data);
|
|
|
|
/** @brief Put string to ringbuffer for transmitting via USART1 (only available on selected ATmega) @see uart_puts */
|
|
/*extern*/void uart1_puts(const char *s);
|
|
|
|
/** @brief Put string from program memory to ringbuffer for transmitting via USART1 (only available on selected ATmega) @see uart_puts_p */
|
|
/*extern*/void uart1_puts_p(const char *s);
|
|
|
|
/** @brief Macro to automatically put a string constant into program memory of USART1 @see uart1_puts_p */
|
|
#define uart1_puts_P(__s) uart1_puts_p(PSTR(__s))
|
|
|
|
/** @brief Return number of bytes waiting in the receive buffer of USART1 */
|
|
/*extern*/uint16_t uart1_available(void);
|
|
|
|
/** @brief Flush bytes waiting in receive buffer of USART1 */
|
|
/*extern*/void uart1_flush(void);
|
|
|
|
|
|
/** @brief Initialize USART2 (only available on selected ATmegas) @see uart_init */
|
|
/*extern*/void uart2_init(uint16_t baudrate);
|
|
|
|
/** @brief Get received byte of USART2 from ringbuffer. (only available on selected ATmega) @see uart_getc */
|
|
/*extern*/uint16_t uart2_getc(void);
|
|
|
|
/** @brief Peek at next byte in USART2 ringbuffer */
|
|
/*extern*/uint16_t uart2_peek(void);
|
|
|
|
/** @brief Put byte to ringbuffer for transmitting via USART2 (only available on selected ATmega) @see uart_putc */
|
|
/*extern*/void uart2_putc(uint8_t data);
|
|
|
|
/** @brief Put string to ringbuffer for transmitting via USART2 (only available on selected ATmega) @see uart_puts */
|
|
/*extern*/void uart2_puts(const char *s);
|
|
|
|
/** @brief Put string from program memory to ringbuffer for transmitting via USART2 (only available on selected ATmega) @see uart_puts_p */
|
|
/*extern*/void uart2_puts_p(const char *s);
|
|
|
|
/** @brief Macro to automatically put a string constant into program memory of USART2 @see uart2_puts_p */
|
|
#define uart2_puts_P(__s) uart2_puts_p(PSTR(__s))
|
|
|
|
/** @brief Return number of bytes waiting in the receive buffer of USART2 */
|
|
/*extern*/uint16_t uart2_available(void);
|
|
|
|
/** @brief Flush bytes waiting in receive buffer of USART2 */
|
|
/*extern*/void uart2_flush(void);
|
|
|
|
|
|
/** @brief Initialize USART3 (only available on selected ATmegas) @see uart_init */
|
|
/*extern*/void uart3_init(uint16_t baudrate);
|
|
|
|
/** @brief Get received byte of USART3 from ringbuffer. (only available on selected ATmega) @see uart_getc */
|
|
/*extern*/uint16_t uart3_getc(void);
|
|
|
|
/** @brief Peek at next byte in USART3 ringbuffer */
|
|
/*extern*/uint16_t uart3_peek(void);
|
|
|
|
/** @brief Put byte to ringbuffer for transmitting via USART3 (only available on selected ATmega) @see uart_putc */
|
|
/*extern*/void uart3_putc(uint8_t data);
|
|
|
|
/** @brief Put string to ringbuffer for transmitting via USART3 (only available on selected ATmega) @see uart_puts */
|
|
/*extern*/void uart3_puts(const char *s);
|
|
|
|
/** @brief Put string from program memory to ringbuffer for transmitting via USART3 (only available on selected ATmega) @see uart_puts_p */
|
|
/*extern*/void uart3_puts_p(const char *s);
|
|
|
|
/** @brief Macro to automatically put a string constant into program memory of USART3 @see uart3_puts_p */
|
|
#define uart3_puts_P(__s) uart3_puts_p(PSTR(__s))
|
|
|
|
/** @brief Return number of bytes waiting in the receive buffer of USART3 */
|
|
/*extern*/uint16_t uart3_available(void);
|
|
|
|
/** @brief Flush bytes waiting in receive buffer of USART3 */
|
|
/*extern*/void uart3_flush(void);
|
|
|
|
/**@}*/
|
|
|
|
#endif // UART_H
|
|
|