Diff: inc/admw_spi.h

Revision:

5:0728bde67bdb

Child:

13:97cb32670539

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/admw_spi.h	Wed Jun 05 05:39:15 2019 +0000
@@ -0,0 +1,113 @@
+/*
+Copyright 2019 (c) Analog Devices, Inc.
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+  - Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  - Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.
+  - Neither the name of Analog Devices, Inc. nor the names of its
+    contributors may be used to endorse or promote products derived
+    from this software without specific prior written permission.
+  - The use of this software may or may not infringe the patent rights
+    of one or more patent holders. This license does not release you
+    from the requirement that you obtain separate licenses from these
+    patent holders to use this software.
+  - Use of the software either in source or binary form, must be run
+    on or directly connected to an Analog Devices Inc. component.
+
+THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT,
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*!
+ ******************************************************************************
+ * @file:   admw_spi.h
+ * @brief:  ADMW OS-dependent wrapper layer for SPI interface
+ *-----------------------------------------------------------------------------
+ */
+
+#ifndef __ADMW_SPI_H__
+#define __ADMW_SPI_H__
+
+#include "inc/admw_types.h"
+#include "inc/admw_platform.h"
+
+/*! @ingroup ADMW_Host */
+
+/*! @addtogroup ADMW_Spi ADMW Host SPI interface functions
+ *  @{
+ */
+
+/*! A handle used in all API functions to identify the SPI interface context */
+typedef void * ADMW_SPI_HANDLE;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*!
+ * @brief Open the SPI interface and allocate resources
+ *
+ * @param[in]  pConfig  Pointer to platform-specific SPI interface details
+ * @param[out] phDevice Pointer to return a SPI interface context handle
+ *
+ * @return Status
+ *         - #ADMW_SUCCESS Call completed successfully
+ *         - #ADMW_NO_MEM  Failed to allocate memory for interface context
+ */
+ADMW_RESULT admw_SpiOpen(
+    ADMW_PLATFORM_SPI_CONFIG * pConfig,
+    ADMW_SPI_HANDLE          * phDevice);
+
+/*!
+ * @brief Close SPI interface and free resources
+ *
+ * @param[in] hDevice SPI interface context handle (@ref admw_SpiOpen)
+ */
+void admw_SpiClose(
+    ADMW_SPI_HANDLE            hDevice);
+
+/*!
+ * @brief Transfer data to slave device
+ *
+ * @param[in] hDevice SPI interface context handle (@ref admw_SpiOpen)
+ * @param[in] pTxData Transmit data buffer, or NULL for read-only transfers
+ * @param[in] pRxData Receive  data buffer, or NULL for write-only transfers
+ * @param[in] nLength Number of bytes to transfer
+ * @param[in] bCsHold Leave the chip-select asserted when the transfer is done
+ *
+ * @return Status
+ *         - #ADMW_SUCCESS Call completed successfully
+ *         - #ADMW_FAILURE Failed to complete SPI transfer
+ */
+ADMW_RESULT admw_SpiTransfer(
+    ADMW_SPI_HANDLE            hDevice,
+    void                          * pTxData,
+    void                          * pRxData,
+    unsigned                        nLength,
+    bool                            bCsHold);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*!
+ * @}
+ */
+
+#endif /* __ADMW_API_H__ */