diff options
Diffstat (limited to 'os/hal/platforms/MSP430/serial_lld.h')
| -rw-r--r-- | os/hal/platforms/MSP430/serial_lld.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/os/hal/platforms/MSP430/serial_lld.h b/os/hal/platforms/MSP430/serial_lld.h new file mode 100644 index 000000000..ae764d739 --- /dev/null +++ b/os/hal/platforms/MSP430/serial_lld.h @@ -0,0 +1,136 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file MSP430/serial_lld.h
+ * @brief MSP430 low level serial driver header.
+ *
+ * @addtogroup SERIAL
+ * @{
+ */
+
+#ifndef _SERIAL_LLD_H_
+#define _SERIAL_LLD_H_
+
+#if HAL_USE_SERIAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @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 TRUE
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @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 {
+ /**
+ * @brief Initialization value for the UBRx registers.
+ */
+ uint16_t sc_div;
+ /**
+ * @brief Initialization value for the MOD register.
+ */
+ uint8_t sc_mod;
+ /**
+ * @brief Initialization value for the CTL register.
+ */
+ uint8_t sc_ctl;
+} SerialConfig;
+
+/**
+ * @brief @p SerialDriver specific data.
+ */
+#define _serial_driver_data \
+ _base_asynchronous_channel_data \
+ /* Driver state.*/ \
+ sdstate_t state; \
+ /* Input queue.*/ \
+ InputQueue iqueue; \
+ /* Output queue.*/ \
+ OutputQueue oqueue; \
+ /* Input circular buffer.*/ \
+ uint8_t ib[SERIAL_BUFFERS_SIZE]; \
+ /* Output circular buffer.*/ \
+ uint8_t ob[SERIAL_BUFFERS_SIZE]; \
+ /* End of the mandatory fields.*/
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/**
+ * @brief Macro for baud rate computation.
+ * @note Make sure the final baud rate is within tolerance.
+ */
+#define UBR(b) (SMCLK / (b))
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if USE_MSP430_USART0 && !defined(__DOXYGEN__)
+extern SerialDriver SD1;
+#endif
+#if USE_MSP430_USART1 && !defined(__DOXYGEN__)
+extern SerialDriver SD2;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void sd_lld_init(void);
+ void sd_lld_start(SerialDriver *sdp, const SerialConfig *config);
+ void sd_lld_stop(SerialDriver *sdp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_SERIAL */
+
+#endif /* _SERIAL_LLD_H_ */
+
+/** @} */
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