-/*!
+/**
* \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 devlib/README for information.
+ *
* -->
*
* \brief High level serial I/O API
* \author Bernardo Innocenti <bernie@develer.com>
*/
-/*#*
- *#* $Log$
- *#* Revision 1.14 2004/10/03 18:43:18 bernie
- *#* Fix a nasty bug caused by confusion between old-style and new-style configuration macros.
- *#*
- *#* Revision 1.13 2004/09/14 21:04:57 bernie
- *#* Don't vanely call kdebug.h.
- *#*
- *#* Revision 1.12 2004/09/06 21:40:50 bernie
- *#* Move buffer handling in chip-specific driver.
- *#*
- *#* Revision 1.11 2004/08/25 14:12:08 rasky
- *#* Aggiornato il comment block dei log RCS
- *#*
- *#* Revision 1.10 2004/08/24 16:20:48 bernie
- *#* ser_read(): Make buffer argument void *#* for consistency with ANSI C and ser_write()
- *#*
- *#* Revision 1.9 2004/08/15 05:32:22 bernie
- *#* ser_resync(): New function.
- *#*
- *#* Revision 1.8 2004/08/02 20:20:29 aleph
- *#* Merge from project_ks
- *#*
- *#* Revision 1.7 2004/07/30 14:15:53 rasky
- *#* Nuovo supporto unificato per detect della CPU
- *#*
- *#* Revision 1.6 2004/07/29 22:57:09 bernie
- *#* ser_drain(): New function; Make Serial::is_open a debug-only feature; Switch to new-style CONFIG_* macros.
- *#*
- *#* 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 <kern/kfile.h>
#include <mware/fifobuf.h>
-#include <compiler.h>
-#include <config.h>
+#include <cfg/compiler.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 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 */
+#if OS_HOSTED
+ #include <cfg/macros.h> /* BV() */
- /* 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 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 */
+ #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 */
+ #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. */
+
+ enum
+ {
+ SER_UART0,
+ SER_UART1,
+
+ SER_CNT /**< Number of serial ports */
+ };
+
#else
- #error unknown architecture
+ #include CPU_HEADER(ser)
#endif
+
+#include <appconfig.h>
+
+
+
+/**
+ * \name Masks to group TX/RX errors.
+ * \{
+ */
+#define SERRF_RX \
+ ( SERRF_RXFIFOOVERRUN \
+ | SERRF_RXTIMEOUT \
+ | SERRF_RXSROVERRUN \
+ | SERRF_PARITYERROR \
+ | SERRF_FRAMEERROR \
+ | SERRF_NOISEERROR)
+#define SERRF_TX (SERRF_TXTIMEOUT)
/*\}*/
-/*! \name Parity settings for ser_setparity() */
-/*\{*/
-#define SER_PARITY_NONE 0
-#define SER_PARITY_EVEN 2
-#define SER_PARITY_ODD 3
+/**
+ * \name LSB or MSB first data order for SPI driver.
+ * \{
+ */
+#define SER_MSB_FIRST 0
+#define SER_LSB_FIRST 1
/*\}*/
-/*!
- * \name Serial hw numbers
+/**
+ * \name Parity settings for ser_setparity().
*
+ * \note Values are AVR-specific for performance reasons.
+ * Other processors should either decode them or
+ * redefine these macros.
* \{
*/
-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
- SER_UART0,
- SER_UART1,
-#else
- #error unknown architecture
-#endif
- SER_CNT /*!< Number of serial ports */
-};
+#define SER_PARITY_NONE 0
+#define SER_PARITY_EVEN 2
+#define SER_PARITY_ODD 3
/*\}*/
struct SerialHardware;
-/*! Human-readable serial error descriptions */
+/** Human-readable serial error descriptions */
extern const char * const serial_errors[8];
-/*! Serial handle structure */
-struct Serial
+/** Serial handle structure */
+typedef struct Serial
{
- /*! Physical port number */
+ /** Physical port number */
unsigned int unit;
#ifdef _DEBUG
bool is_open;
#endif
- /*!
+ /**
* \name Transmit and receive FIFOs.
*
* Declared volatile because handled asinchronously by interrupts.
/* \} */
#if CONFIG_SER_RXTIMEOUT != -1
- time_t rxtimeout;
+ ticks_t rxtimeout;
#endif
#if CONFIG_SER_TXTIMEOUT != -1
- time_t txtimeout;
+ ticks_t txtimeout;
#endif
- /*! Holds the flags defined above. Will be 0 when no errors have occurred. */
- serstatus_t status;
+ /** Holds the flags defined above. Will be 0 when no errors have occurred. */
+ volatile serstatus_t status;
- /*! Low-level interface to hardware. */
+ /** Low-level interface to hardware. */
struct SerialHardware* hw;
-};
+} Serial;
+typedef struct KFileSerial
+{
+ KFile fd;
+ Serial *ser;
+} KFileSerial;
+
+/**
+ * ID for serial.
+ */
+#define KFT_SERIAL MAKE_ID('S', 'E', 'R', 'L')
-/* 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, void *buf, size_t size);
+INLINE KFileSerial * KFILESERIAL(KFile *fd)
+{
+ ASSERT(fd->_type == KFT_SERIAL);
+ return (KFileSerial *)fd;
+}
-extern int ser_print(struct Serial *port, const char *s);
-extern int ser_printf(struct Serial *port, const char *format, ...) FORMAT(__printf__, 2, 3);
+/* Function prototypes */
+//extern int ser_getchar_nowait(struct Serial *port);
-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);
+void ser_setbaudrate(struct KFileSerial *fd, unsigned long rate);
+void ser_setparity(struct KFileSerial *fd, int parity);
+void ser_settimeouts(struct KFileSerial *fd, mtime_t rxtimeout, mtime_t txtimeout);
+void ser_resync(struct KFileSerial *fd, mtime_t delay);
+int ser_getchar_nowait(struct KFileSerial *fd);
-extern void ser_setbaudrate(struct Serial *port, unsigned long rate);
-extern void ser_setparity(struct Serial *port, int parity);
-extern void ser_settimeouts(struct Serial *port, time_t rxtimeout, time_t txtimeout);
-extern void ser_resync(struct Serial *port, time_t delay);
-extern void ser_purge(struct Serial *port);
-extern void ser_drain(struct Serial *port);
+void ser_purgeRx(struct KFileSerial *fd);
+void ser_purgeTx(struct KFileSerial *fd);
+void ser_purge(struct KFileSerial *fd);
+void ser_init(struct KFileSerial *fds, unsigned int unit);
+void spimaster_init(KFileSerial *fds, unsigned int unit);
-extern struct Serial *ser_open(unsigned int unit);
-extern void ser_close(struct Serial *port);
-/*!
+/**
* \name Additional functions implemented as macros
*
* \{