+++ /dev/null
-/*!
- * \file
- * <!--
- * Copyright 2003,2004 Develer S.r.l. (http://www.develer.com/)
- * Copyright 2000 Bernardo Innocenti <bernie@codewiz.org>
- * This file is part of DevLib - See devlib/README for information.
- * -->
- *
- * \brief High level serial I/O API
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- */
-
-/*
- * $Log$
- * Revision 1.5 2004/07/18 21:54:23 bernie
- * Add ATmega8 support.
- *
- * Revision 1.4 2004/06/03 11:27:09 bernie
- * Add dual-license information.
- *
- * Revision 1.3 2004/06/02 21:35:24 aleph
- * Serial enhancements: interruptible receive handler and 8 bit serial status for AVR; remove volatile attribute to FIFOBuffer, useless for new fifobuf routens
- *
- * Revision 1.2 2004/05/23 18:21:53 bernie
- * Trim CVS logs and cleanup header info.
- *
- */
-#ifndef DRV_SER_H
-#define DRV_SER_H
-
-#include "compiler.h"
-#include <mware/fifobuf.h>
-#include "config.h"
-
-/*!
- * \name Serial Error/status flags
- *
- * Some of these flags map directly to the flags
- * in AVR UART Status Register(USR).
- * \todo flags of DSP56k aren't mapped to these flags. Luckily
- * these flags doesn't collide with the DSP56k ones,
- * which are from 0x0100 to 0x8000
- */
-/*\{*/
-#if defined(__AVR__)
- typedef uint8_t serstatus_t;
-
- /* Software errors */
- #define SERRF_RXFIFOOVERRUN BV(0) /*!< Rx FIFO buffer overrun */
- #define SERRF_RXTIMEOUT BV(5) /*!< Receive timeout */
- #define SERRF_TXTIMEOUT BV(6) /*!< Transmit timeout */
-
- /* Hardware errors */
- #define SERRF_RXSROVERRUN BV(3) /*!< Rx shift register overrun */
- #define SERRF_FRAMEERROR BV(4) /*!< Stop bit missing */
- #define SERRF_PARITYERROR BV(7) /*!< Parity error */
-#elif defined(__m56800__)
- typedef uint16_t serstatus_t;
-
- /* Software errors */
- #define SERRF_RXFIFOOVERRUN BV(0) /*!< Rx FIFO buffer overrun */
- #define SERRF_RXTIMEOUT BV(1) /*!< Receive timeout */
- #define SERRF_TXTIMEOUT BV(2) /*!< Transmit timeout */
-
- /* Hardware errors */
- #define SERRF_PARITYERROR BV(8) /*!< Parity error */
- #define SERRF_FRAMEERROR BV(9) /*!< Stop bit missing */
- #define SERRF_NOISEERROR BV(10) /*!< Noise error */
- #define SERRF_RXSROVERRUN BV(11) /*!< Rx shift register overrun */
-#else
- #error unknown architecture
-#endif
-/*\}*/
-
-/*! \name Parity settings for ser_setparity() */
-/*\{*/
-#define SER_PARITY_NONE 0
-#define SER_PARITY_EVEN 2
-#define SER_PARITY_ODD 3
-/*\}*/
-
-/*!
- * \name Serial hw numbers
- *
- * \{
- */
-enum
-{
-#if defined(__AVR_ATmega64__)
- SER_UART0,
- SER_UART1,
- SER_SPI,
-#elif defined(__AVR_ATmega103__) || defined(__AVR_ATmega8__)
- SER_UART0,
- SER_SPI,
-#elif defined (__m56800__)
- SER_UART0,
- SER_UART1,
-#else
- #error unknown architecture
-#endif
-
- SER_CNT /**< Number of serial ports */
-};
-/* @} */
-
-
-struct SerialHardware;
-
-/*! Human-readable serial error descriptions */
-extern const char * const serial_errors[8];
-
-/*! Serial handle structure */
-struct Serial
-{
- /*! Physical port number */
- unsigned int unit;
-
- bool is_open;
-
- /*!
- * \name FIFO transmit and receive buffers.
- *
- * Declared volatile because handled asinchronously by interrupts.
- *
- * \{
- */
- FIFOBuffer txfifo;
- FIFOBuffer rxfifo;
- unsigned char txbuffer[CONFIG_SER_TXBUFSIZE];
- unsigned char rxbuffer[CONFIG_SER_RXBUFSIZE];
- /* \} */
-
-#ifdef CONFIG_SER_RXTIMEOUT
- time_t rxtimeout;
-#endif
-#ifdef CONFIG_SER_TXTIMEOUT
- time_t txtimeout;
-#endif
-
- /*! Holds the flags defined above. Will be 0 when no errors have occurred. */
- serstatus_t status;
-
- /*! Low-level interface to hardware. */
- struct SerialHardware* hw;
-};
-
-
-/* Function prototypes */
-extern int ser_putchar(int c, struct Serial *port);
-extern int ser_getchar(struct Serial *port);
-extern int ser_getchar_nowait(struct Serial *port);
-
-extern int ser_write(struct Serial *port, const void *buf, size_t len);
-extern int ser_read(struct Serial *port, char *buf, size_t size);
-
-extern int ser_print(struct Serial *port, const char *s);
-extern int ser_printf(struct Serial *port, const char *format, ...) FORMAT(__printf__, 2, 3);
-
-extern int ser_gets(struct Serial *port, char *buf, int size);
-extern int ser_gets_echo(struct Serial *port, char *buf, int size, bool echo);
-
-extern void ser_setbaudrate(struct Serial *port, unsigned long rate);
-extern void ser_setparity(struct Serial *port, int parity);
-extern void ser_purge(struct Serial *port);
-
-#if defined(CONFIG_SER_RXTIMEOUT) || defined(CONFIG_SER_TXTIMEOUT)
- extern void ser_settimeouts(struct Serial *port, time_t rxtimeout, time_t txtimeout);
-#endif
-
-extern struct Serial *ser_open(unsigned int unit);
-extern void ser_close(struct Serial *port);
-
-/*!
- * \name Additional functions implemented as macros
- *
- * \{
- */
-#define ser_getstatus(h) ((h)->status)
-#define ser_setstatus(h, x) ((h)->status = (x))
-/* \} */
-
-#endif /* DRV_SER_H */
projects / bertos.git / blobdiff