diff options
Diffstat (limited to 'os/hal/templates/hal_spi_lld.h')
| -rw-r--r-- | os/hal/templates/hal_spi_lld.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/os/hal/templates/hal_spi_lld.h b/os/hal/templates/hal_spi_lld.h new file mode 100644 index 000000000..38d717966 --- /dev/null +++ b/os/hal/templates/hal_spi_lld.h @@ -0,0 +1,152 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 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 spi_lld.h
+ * @brief PLATFORM SPI subsystem low level driver header.
+ *
+ * @addtogroup SPI
+ * @{
+ */
+
+#ifndef _SPI_LLD_H_
+#define _SPI_LLD_H_
+
+#if (HAL_USE_SPI == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @name PLATFORM configuration options
+ * @{
+ */
+/**
+ * @brief SPI1 driver enable switch.
+ * @details If set to @p TRUE the support for SPI1 is included.
+ * @note The default is @p FALSE.
+ */
+#if !defined(PLATFORM_SPI_USE_SPI1) || defined(__DOXYGEN__)
+#define PLATFORM_SPI_USE_SPI1 FALSE
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Type of a structure representing an SPI driver.
+ */
+typedef struct SPIDriver SPIDriver;
+
+/**
+ * @brief SPI notification callback type.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object triggering the
+ * callback
+ */
+typedef void (*spicallback_t)(SPIDriver *spip);
+
+/**
+ * @brief Driver configuration structure.
+ * @note Implementations may extend this structure to contain more,
+ * architecture dependent, fields.
+ */
+typedef struct {
+ /**
+ * @brief Operation complete callback or @p NULL.
+ */
+ spicallback_t end_cb;
+ /* End of the mandatory fields.*/
+} SPIConfig;
+
+/**
+ * @brief Structure representing an SPI driver.
+ * @note Implementations may extend this structure to contain more,
+ * architecture dependent, fields.
+ */
+struct SPIDriver {
+ /**
+ * @brief Driver state.
+ */
+ spistate_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const SPIConfig *config;
+#if (SPI_USE_WAIT == TRUE) || defined(__DOXYGEN__)
+ /**
+ * @brief Waiting thread.
+ */
+ thread_reference_t thread;
+#endif
+#if (SPI_USE_MUTUAL_EXCLUSION == TRUE) || defined(__DOXYGEN__)
+ /**
+ * @brief Mutex protecting the peripheral.
+ */
+ mutex_t mutex;
+#endif
+#if defined(SPI_DRIVER_EXT_FIELDS)
+ SPI_DRIVER_EXT_FIELDS
+#endif
+ /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if (PLATFORM_SPI_USE_SPI1 == TRUE) && !defined(__DOXYGEN__)
+extern SPIDriver SPID1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void spi_lld_init(void);
+ void spi_lld_start(SPIDriver *spip);
+ void spi_lld_stop(SPIDriver *spip);
+ void spi_lld_select(SPIDriver *spip);
+ void spi_lld_unselect(SPIDriver *spip);
+ void spi_lld_ignore(SPIDriver *spip, size_t n);
+ void spi_lld_exchange(SPIDriver *spip, size_t n,
+ const void *txbuf, void *rxbuf);
+ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf);
+ void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf);
+ uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_SPI == TRUE */
+
+#endif /* _SPI_LLD_H_ */
+
+/** @} */
|