From 16178e1c45a76544d34ce63db37932838353637c Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sat, 28 Nov 2009 12:25:35 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1333
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/platforms/MSP430/serial_lld.h | 159 +++++++++++++++++++++++++++++++++++
 1 file changed, 159 insertions(+)
 create mode 100644 os/hal/platforms/MSP430/serial_lld.h

(limited to 'os/hal/platforms/MSP430/serial_lld.h')

diff --git a/os/hal/platforms/MSP430/serial_lld.h b/os/hal/platforms/MSP430/serial_lld.h
new file mode 100644
index 000000000..63d94046e
--- /dev/null
+++ b/os/hal/platforms/MSP430/serial_lld.h
@@ -0,0 +1,159 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT 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 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file MSP430/serial_lld.h
+ * @brief MSP430 low level serial driver header
+ * @addtogroup MSP430_SERIAL
+ * @{
+ */
+
+#ifndef _SERIAL_LLD_H_
+#define _SERIAL_LLD_H_
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief Serial buffers size.
+ * @details Configuration parameter, you can change the depth of the queue
+ * buffers depending on the requirements of your application.
+ * @note The default is 32 bytes for both the transmission and receive buffers.
+ */
+#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_BUFFERS_SIZE 32
+#endif
+
+/**
+ * @brief Default bit rate.
+ * @details Configuration parameter, at startup the UARTs are configured at
+ * this speed.
+ */
+#if !defined(DEFAULT_USART_BITRATE) || defined(__DOXYGEN__)
+#define DEFAULT_USART_BITRATE 38400
+#endif
+
+/**
+ * @brief USART0 driver enable switch.
+ * @details If set to @p TRUE the support for USART0 is included.
+ * @note The default is @p TRUE.
+ */
+#if !defined(USE_MSP430_USART0) || defined(__DOXYGEN__)
+#define USE_MSP430_USART0 TRUE
+#endif
+
+/**
+ * @brief USART1 driver enable switch.
+ * @details If set to @p TRUE the support for USART1 is included.
+ * @note The default is @p FALSE.
+ */
+#if !defined(USE_MSP430_USART1) || defined(__DOXYGEN__)
+#define USE_MSP430_USART1 FALSE
+#endif
+
+/*===========================================================================*/
+/* Unsupported event flags and custom events.                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * Serial Driver condition flags type.
+ */
+typedef uint8_t sdflags_t;
+
+/**
+ * @brief @p SerialDriver specific data.
+ */
+struct _serial_driver_data {
+  /**
+   * Input queue, incoming data can be read from this input queue by
+   * using the queues APIs.
+   */
+  InputQueue            iqueue;
+  /**
+   * Output queue, outgoing data can be written to this output queue by
+   * using the queues APIs.
+   */
+  OutputQueue           oqueue;
+  /**
+   * Status Change @p EventSource. This event is generated when one or more
+   * condition flags change.
+   */
+  EventSource           sevent;
+  /**
+   * I/O driver status flags.
+   */
+  sdflags_t             flags;
+  /**
+   * Input circular buffer.
+   */
+  uint8_t               ib[SERIAL_BUFFERS_SIZE];
+  /**
+   * Output circular buffer.
+   */
+  uint8_t               ob[SERIAL_BUFFERS_SIZE];
+};
+
+/**
+ * @brief Macro for baud rate computation.
+ * @note Make sure the final baud rate is within tolerance.
+ */
+#define UBR(b) (SMCLK / (b))
+
+/**
+ * @brief MSP430 Serial Driver configuration structure.
+ * @details An instance of this structure must be passed to @p sdStart()
+ *          in order to configure and start a serial driver operations.
+ */
+typedef struct {
+  uint16_t              div;
+  uint8_t               mod;
+  uint8_t               ctl;
+} SerialDriverConfig;
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+/** @cond never*/
+#if USE_MSP430_USART0
+extern SerialDriver SD1;
+#endif
+#if USE_MSP430_USART1
+extern SerialDriver SD2;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void sd_lld_init(void);
+  void sd_lld_start(SerialDriver *sdp, const SerialDriverConfig *config);
+  void sd_lld_stop(SerialDriver *sdp);
+#ifdef __cplusplus
+}
+#endif
+/** @endcond*/
+
+#endif /* _SERIAL_LLD_H_ */
+
+/** @} */
-- 
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