diff options
Diffstat (limited to 'os/io/platforms/AT91SAM7X/serial_lld.h')
| -rw-r--r-- | os/io/platforms/AT91SAM7X/serial_lld.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/os/io/platforms/AT91SAM7X/serial_lld.h b/os/io/platforms/AT91SAM7X/serial_lld.h new file mode 100644 index 000000000..dfd41398d --- /dev/null +++ b/os/io/platforms/AT91SAM7X/serial_lld.h @@ -0,0 +1,147 @@ +/*
+ 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 AT91SAM7X/serial_lld.h
+ * @brief AT91SAM7X low level serial driver header
+ * @addtogroup AT91SAM7X_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 128 bytes for both the transmission and receive buffers.
+ */
+#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_BUFFERS_SIZE 128
+#endif
+
+/**
+ * @brief UART0 driver enable switch.
+ * @details If set to @p TRUE the support for USART1 is included.
+ * @note The default is @p TRUE.
+ */
+#if !defined(USE_SAM7X_USART0) || defined(__DOXYGEN__)
+#define USE_SAM7X_USART0 TRUE
+#endif
+
+/**
+ * @brief UART1 driver enable switch.
+ * @details If set to @p TRUE the support for USART2 is included.
+ * @note The default is @p TRUE.
+ */
+#if !defined(USE_SAM7X_USART1) || defined(__DOXYGEN__)
+#define USE_SAM7X_USART1 TRUE
+#endif
+
+/*===========================================================================*/
+/* Unsupported event flags and custom events. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * Serial Driver condition flags type.
+ */
+typedef uint32_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 Generic Serial Driver static initializer.
+ * @details An instance of this structure must be passed to @p sdStart()
+ * in order to configure and start a serial driver operations.
+ *
+ * @note This structure content is architecture dependent, each driver
+ * implementation defines its own version and the custom static
+ * initializers.
+ */
+typedef struct {
+ uint32_t speed;
+ uint32_t mr;
+} SerialDriverConfig;
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+/** @cond never*/
+#if !defined(USE_SAM7X_USART0)
+extern FullDuplexDriver COM1;
+#endif
+#if !defined(USE_SAM7X_USART1)
+extern FullDuplexDriver COM2;
+#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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