X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Fser.h;h=dfab067e14dbb08066e46689acbb0851247aeb7d;hb=786e425376d8be2cccf40a7f2a62a598ea062df3;hp=64a84b0fb5db18e9579ac4f04e10aa1935247757;hpb=ef27d1caf51bb56021a4df286d84b454b6d0e601;p=bertos.git

diff --git a/drv/ser.h b/drv/ser.h
old mode 100755
new mode 100644
index 64a84b0f..dfab067e
--- a/drv/ser.h
+++ b/drv/ser.h
@@ -1,9 +1,34 @@
-/*!
+/**
  * \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
@@ -14,6 +39,57 @@
 
 /*#*
  *#* $Log$
+ *#* 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.
+ *#*
+ *#* Revision 1.30  2006/09/13 18:21:23  bernie
+ *#* Add configurable SPI pin mapping.
+ *#*
+ *#* Revision 1.29  2006/09/13 13:59:11  bernie
+ *#* Documentation fixes.
+ *#*
+ *#* Revision 1.28  2006/07/21 10:58:00  batt
+ *#* Use timer_clock() instead of obsolete timer_ticks().
+ *#*
+ *#* Revision 1.27  2006/07/19 12:56:26  bernie
+ *#* Convert to new Doxygen style.
+ *#*
+ *#* Revision 1.26  2006/05/18 00:39:13  bernie
+ *#* Add struct Serial friendly typedef.
+ *#*
+ *#* Revision 1.25  2006/02/17 22:28:00  bernie
+ *#* Rename ser_emul.c to ser_posix.c.
+ *#*
+ *#* Revision 1.24  2006/02/17 22:23:06  bernie
+ *#* Update POSIX serial emulator.
+ *#*
+ *#* Revision 1.23  2005/11/27 23:33:40  bernie
+ *#* Use appconfig.h instead of cfg/config.h.
+ *#*
+ *#* Revision 1.22  2005/11/04 16:20:02  bernie
+ *#* Fix reference to README.devlib in header.
+ *#*
+ *#* Revision 1.21  2005/04/11 19:10:27  bernie
+ *#* Include top-level headers from cfg/ subdir.
+ *#*
+ *#* Revision 1.20  2005/01/22 04:20:01  bernie
+ *#* Reformat.
+ *#*
  *#* Revision 1.19  2005/01/11 18:08:16  aleph
  *#* Add missing include
  *#*
@@ -72,61 +148,90 @@
 #ifndef DRV_SER_H
 #define DRV_SER_H
 
+#include <cpu/detect.h>
 #include <mware/fifobuf.h>
-#include <compiler.h>
-#include <config.h>
-#include <macros.h> /* BV() */
+#include <cfg/compiler.h>
+#include <cfg/macros.h> /* BV() */
+#include <cfg/os.h>
+
+#include <appconfig.h>
 
-/*! \name Serial Error/status flags. */
+/** \name Serial Error/status flags. */
 /*\{*/
-#if CPU_AVR
+#if CPU_ARM_AT91
+	typedef uint32_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 ARM USART Channel Status Register (US_CSR).
+	 */
+	#define SERRF_RXSROVERRUN    BV(5)  /**< Rx shift register overrun */
+	#define SERRF_FRAMEERROR     BV(6)  /**< Stop bit missing */
+	#define SERRF_PARITYERROR    BV(7)  /**< Parity error */
+	#define SERRF_NOISEERROR     0      /**< Unsupported */
+
+#elif 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 */
+	#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).
+	 * 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 */
+	#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 */
+	#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 defined(_EMUL)
+	#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;
 
 	/* 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_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. */
-/*\{*/
-#define SERRF_RX  (SERRF_RXFIFOOVERRUN \
+/**
+ * \name Masks to group TX/RX errors.
+ * \{
+ */
+#define SERRF_RX \
+	( SERRF_RXFIFOOVERRUN \
 	| SERRF_RXTIMEOUT \
 	| SERRF_RXSROVERRUN \
 	| SERRF_PARITYERROR \
@@ -135,28 +240,39 @@
 #define SERRF_TX  (SERRF_TXTIMEOUT)
 /*\}*/
 
+/**
+ * \name LSB or MSB first data order, used with SPI AVR serial
+ * \{
+ */
+#define SER_MSB_FIRST 0
+#define SER_LSB_FIRST 1
+/*\}*/
 
-/*!
+/**
  * \name Parity settings for ser_setparity().
  *
  * \note Values are AVR-specific for performance reasons.
  *       Other processors should either decode them or
  *       redefine these macros.
+ * \{
  */
-/*\{*/
 #define SER_PARITY_NONE  0
 #define SER_PARITY_EVEN  2
 #define SER_PARITY_ODD   3
 /*\}*/
 
-/*!
+/**
  * \name Serial hw numbers
  *
  * \{
  */
 enum
 {
-#if CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128
+#if CPU_ARM_AT91
+	SER_UART0,
+	SER_UART1,
+	SER_SPI,
+#elif CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128 || CPU_AVR_ATMEGA1281
 	SER_UART0,
 	SER_UART1,
 	SER_SPI,
@@ -168,35 +284,33 @@ enum
 	SER_UART0,
 	SER_PUNTALI,
 	SER_BARCODE,
-#elif defined(_EMUL)
+#elif OS_HOSTED
 	SER_UART0,
-	#if CONFIG_EMUL_UART1
-		SER_UART1,
-	#endif
+	SER_UART1,
 #else
 	#error unknown architecture
 #endif
-	SER_CNT  /*!< Number of serial ports */
+	SER_CNT  /**< Number of serial ports */
 };
 /*\}*/
 
 
 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.
@@ -208,18 +322,18 @@ struct Serial
 	/* \} */
 
 #if CONFIG_SER_RXTIMEOUT != -1
-	mtime_t rxtimeout;
+	ticks_t rxtimeout;
 #endif
 #if CONFIG_SER_TXTIMEOUT != -1
-	mtime_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;
 
 
 /* Function prototypes */
@@ -246,13 +360,14 @@ extern void ser_drain(struct Serial *port);
 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))
+#define ser_clearstatus(h)  ser_setstatus(h, 0)
 /* \} */
 
 #endif /* DRV_SER_H */