Document AVR dependency.

[bertos.git] / drv / ser.c

diff --git a/drv/ser.c b/drv/ser.c
index 9d86c23aedc771e890dc40a4775be41266ffcf04..4e1235c39ec7d48d01e53951ec1f0d951b1a359d 100755 (executable)
--- a/drv/ser.c
+++ b/drv/ser.c
@@ -1,9 +1,9 @@
 /*!
  * \file
  * <!--
- * Copyright 2003,2004 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 2003, 2004 Develer S.r.l. (http://www.develer.com/)
  * Copyright 2000 Bernardo Innocenti <bernie@codewiz.org>
- * All Rights Reserved.
+ * This file is part of DevLib - See devlib/README for information.
  * -->
  *
  * \brief Buffered serial I/O driver
@@ -28,6 +28,18 @@
 
 /*
  * $Log$
+ * Revision 1.7  2004/07/18 21:49:03  bernie
+ * Make CONFIG_SER_DEFBAUDRATE optional.
+ *
+ * Revision 1.6  2004/06/07 15:56:28  aleph
+ * Remove cast-as-lvalue extension abuse
+ *
+ * Revision 1.5  2004/06/06 16:41:44  bernie
+ * ser_putchar(): Use fifo_push_locked() to fix potential race on 8bit processors.
+ *
+ * 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
  *
@@ -93,7 +105,7 @@ int ser_putchar(int c, struct Serial *port)
                while (fifo_isfull_locked(&port->txfifo));
        }
 
-       fifo_push(&port->txfifo, (unsigned char)c);
+       fifo_push_locked(&port->txfifo, (unsigned char)c);
 
        /* (re)trigger tx interrupt */
        port->hw->table->enabletxirq(port->hw);
@@ -248,12 +260,16 @@ int ser_print(struct Serial *port, const char *s)
  * \brief Write a buffer to serial.
  *
  * \return 0 if OK, EOF in case of error.
+ *
+ * \todo Optimize with fifo_pushblock()
  */
-int ser_write(struct Serial *port, const void *buf, size_t len)
+int ser_write(struct Serial *port, const void *_buf, size_t len)
 {
+       const char *buf = _buf;
+
        while (len--)
        {
-               if (ser_putchar(*((const char *)buf)++, port) == EOF)
+               if (ser_putchar(*buf++, port) == EOF)
                        return EOF;
        }
        return 0;
@@ -334,7 +350,9 @@ struct Serial *ser_open(unsigned int unit)
 #if defined(CONFIG_SER_RXTIMEOUT) || defined(CONFIG_SER_TXTIMEOUT)
        ser_settimeouts(port, CONFIG_SER_RXTIMEOUT, CONFIG_SER_TXTIMEOUT);
 #endif
+#if defined(CONFIG_SER_DEFBAUDRATE)
        ser_setbaudrate(port, CONFIG_SER_DEFBAUDRATE);
+#endif
 
        return port;
 }