Diff: src/mbed/adi_sense_spi.cpp

Revision:

5:0728bde67bdb

Parent:

4:2ca06eee5735

Child:

6:9d393a9677f4

--- a/src/mbed/adi_sense_spi.cpp	Tue Jun 04 10:09:11 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,171 +0,0 @@
-/******************************************************************************
-Copyright 2017 (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:
- * @brief:  ADISENSE OS-dependent wrapper layer for SPI interface
- *-----------------------------------------------------------------------------
- */
-
-#include <mbed.h>
-
-#include "inc/adi_sense_spi.h"
-#include "inc/adi_sense_log.h"
-
-#define ADI_SENSE_SPI_MODE       0 /* CPOL=0, CPHA=0 */
-#define ADI_SENSE_SPI_FRAME_SIZE 8 /* 8-bit frame size */
-
-class SpiContext
-{
-public:
-    SpiContext(
-        PinName mosiPin,
-        PinName misoPin,
-        PinName sckPin,
-        PinName csPin,
-        unsigned maxSpeed);
-
-    int transfer(
-        void *pTxData,
-        void *pRxData,
-        unsigned nLength,
-        bool bCsHold);
-
-private:
-    SPI _spi;
-    DigitalOut _cs;
-};
-
-SpiContext::SpiContext(PinName mosiPin,
-                       PinName misoPin,
-                       PinName sckPin,
-                       PinName csPin,
-                       unsigned maxSpeed)
-    : _spi(mosiPin, misoPin, sckPin),
-      _cs(csPin, 1)
-{
-
-    _spi.format(ADI_SENSE_SPI_FRAME_SIZE, ADI_SENSE_SPI_MODE);
-    _spi.frequency(maxSpeed);
-}
-
-int SpiContext::transfer(
-    void *pTxData,
-    void *pRxData,
-    unsigned nLength,
-    bool bCsHold)
-{
-    int rc = 0;
-
-    _cs = 0;
-
-    rc  = _spi.write((char*)(pTxData), pTxData ? nLength : 0,
-                     (char*)(pRxData), pRxData ? nLength : 0);
-    
-    if ((rc < 0) || !bCsHold)
-        _cs = 1;
-
-    return rc;
-}
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Open the SPI interface and allocate resources
- */
-ADI_SENSE_RESULT adi_sense_SpiOpen(
-    ADI_SENSE_PLATFORM_SPI_CONFIG *pConfig,
-    ADI_SENSE_SPI_HANDLE *phDevice)
-{
-    SpiContext *pCtx = new SpiContext((PinName)pConfig->mosiPin,
-                                      (PinName)pConfig->misoPin,
-                                      (PinName)pConfig->sckPin,
-                                      (PinName)pConfig->csPin,
-                                      pConfig->maxSpeedHz);
-    if (!pCtx)
-    {
-        ADI_SENSE_LOG_ERROR("Failed to allocate memory for SPI interface");
-        return ADI_SENSE_NO_MEM;
-    }
-
-    *phDevice = reinterpret_cast<ADI_SENSE_SPI_HANDLE>(pCtx);
-    return ADI_SENSE_SUCCESS;
-}
-
-/*
- * Execute a bi-directional data transfer on the SPI interface
- */
-ADI_SENSE_RESULT
-adi_sense_SpiTransfer(
-    ADI_SENSE_SPI_HANDLE hDevice,
-    void *pTxData,
-    void *pRxData,
-    unsigned nLength,
-    bool bCsHold)
-{
-    SpiContext *pCtx = reinterpret_cast<SpiContext *>(hDevice);
-
-    if (pCtx->transfer(pTxData, pRxData, nLength, bCsHold) < 0)
-    {
-        ADI_SENSE_LOG_ERROR("Failed to complete SPI transfer");
-        return ADI_SENSE_FAILURE;
-    }
-
-    return ADI_SENSE_SUCCESS;
-}
-
-/*
- * Close the SPI interface and free resources
- */
-void adi_sense_SpiClose(
-    ADI_SENSE_SPI_HANDLE hDevice)
-{
-    SpiContext *pCtx = reinterpret_cast<SpiContext *>(hDevice);
-
-    delete pCtx;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-/*!
- * @}
- */
-