/**
* \file
* <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos 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
+ * (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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction. Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License. This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
* 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 README.devlib for information.
+ *
* -->
*
* \brief High level serial I/O API
/*#*
*#* $Log$
+ *#* Revision 1.36 2007/01/29 11:30:30 batt
+ *#* Reimplement ser_clearstatus as a macro.
+ *#*
+ *#* Revision 1.35 2007/01/27 20:47:12 batt
+ *#* Add clear status.
+ *#*
+ *#* Revision 1.34 2006/11/20 15:07:40 batt
+ *#* Revert unneeded locked functions.
+ *#*
+ *#* Revision 1.33 2006/11/17 17:03:58 batt
+ *#* Implement ser_setstatus and ser_getstatus as functions to avoid race conditions.
+ *#*
+ *#* Revision 1.32 2006/11/17 16:01:12 batt
+ *#* Serial status MUST be volatile.
+ *#*
*#* Revision 1.31 2006/09/13 18:22:48 bernie
*#* Typo.
*#*
#ifndef DRV_SER_H
#define DRV_SER_H
+
#include <mware/fifobuf.h>
#include <cfg/compiler.h>
-#include <cfg/macros.h> /* BV() */
-#include <cfg/os.h>
-#include <appconfig.h>
-
-/** \name Serial Error/status flags. */
-/*\{*/
-#if CPU_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.
- * These flags map directly to the AVR UART Status Register (USR).
- */
- #define SERRF_RXSROVERRUN BV(3) /**< Rx shift register overrun */
- #define SERRF_FRAMEERROR BV(4) /**< Stop bit missing */
- #define SERRF_PARITYERROR BV(7) /**< Parity error */
- #define SERRF_NOISEERROR 0 /**< Unsupported */
-#elif CPU_DSP56K
- 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.
- * These flags map directly to the SCI Control Register.
- */
- #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 */
-#elif OS_HOSTED
- typedef uint16_t serstatus_t;
+#include CPU_HEADER(ser)
- /* 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 */
+#include <appconfig.h>
- /* Hardware errors */
- #define SERRF_RXSROVERRUN 0 /**< Unsupported in emulated serial port. */
- #define SERRF_FRAMEERROR 0 /**< Unsupported in emulated serial port. */
- #define SERRF_PARITYERROR 0 /**< Unsupported in emulated serial port. */
- #define SERRF_NOISEERROR 0 /**< Unsupported in emulated serial port. */
-#else
- #error unknown architecture
-#endif
-/*\}*/
/**
* \name Masks to group TX/RX errors.
/*\}*/
/**
- * \name LSB or MSB first data order, used with SPI AVR serial
+ * \name LSB or MSB first data order for SPI driver.
* \{
*/
#define SER_MSB_FIRST 0
#define SER_PARITY_ODD 3
/*\}*/
-/**
- * \name Serial hw numbers
- *
- * \{
- */
-enum
-{
-#if CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128
- SER_UART0,
- SER_UART1,
- SER_SPI,
-#elif CPU_AVR_ATMEGA103 || CPU_AVR_ATMEGA8
- SER_UART0,
- SER_SPI,
-#elif CPU_DSP56K
- // \todo since we now support "fake" multiplexed serials, this should be moved to hw.h
- SER_UART0,
- SER_PUNTALI,
- SER_BARCODE,
-#elif OS_HOSTED
- SER_UART0,
- SER_UART1,
-#else
- #error unknown architecture
-#endif
- SER_CNT /**< Number of serial ports */
-};
-/*\}*/
-
struct SerialHardware;
#endif
/** Holds the flags defined above. Will be 0 when no errors have occurred. */
- serstatus_t status;
+ volatile serstatus_t status;
/** Low-level interface to hardware. */
struct SerialHardware* hw;
*/
#define ser_getstatus(h) ((h)->status)
#define ser_setstatus(h, x) ((h)->status = (x))
+#define ser_clearstatus(h) ser_setstatus(h, 0)
/* \} */
#endif /* DRV_SER_H */
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