1 files changed, 263 insertions, 0 deletions

diff --git a/lib/chibios/os/hal/templates/hal_spi_lld.c b/lib/chibios/os/hal/templates/hal_spi_lld.c
new file mode 100644
index 000000000..24f81757d
--- /dev/null
+++ b/lib/chibios/os/hal/templates/hal_spi_lld.c
@@ -0,0 +1,263 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 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    hal_spi_lld.c
+ * @brief   PLATFORM SPI subsystem low level driver source.
+ *
+ * @addtogroup SPI
+ * @{
+ */
+
+#include "hal.h"
+
+#if (HAL_USE_SPI == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   SPI1 driver identifier.
+ */
+#if (PLATFORM_SPI_USE_SPI1 == TRUE) || defined(__DOXYGEN__)
+SPIDriver SPID1;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level SPI driver initialization.
+ *
+ * @notapi
+ */
+void spi_lld_init(void) {
+
+#if PLATFORM_SPI_USE_SPI1 == TRUE
+  /* Driver initialization.*/
+  spiObjectInit(&SPID1);
+#endif
+}
+
+/**
+ * @brief   Configures and activates the SPI peripheral.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_start(SPIDriver *spip) {
+
+  if (spip->state == SPI_STOP) {
+    /* Enables the peripheral.*/
+#if PLATFORM_SPI_USE_SPI1 == TRUE
+    if (&SPID1 == spip) {
+
+    }
+#endif
+  }
+  /* Configures the peripheral.*/
+
+}
+
+/**
+ * @brief   Deactivates the SPI peripheral.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_stop(SPIDriver *spip) {
+
+  if (spip->state == SPI_READY) {
+    /* Disables the peripheral.*/
+#if PLATFORM_SPI_USE_SPI1 == TRUE
+    if (&SPID1 == spip) {
+
+    }
+#endif
+  }
+}
+
+/**
+ * @brief   Asserts the slave select signal and prepares for transfers.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_select(SPIDriver *spip) {
+
+  (void)spip;
+
+}
+
+/**
+ * @brief   Deasserts the slave select signal.
+ * @details The previously selected peripheral is unselected.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_unselect(SPIDriver *spip) {
+
+  (void)spip;
+
+}
+
+/**
+ * @brief   Ignores data on the SPI bus.
+ * @details This asynchronous function starts the transmission of a series of
+ *          idle words on the SPI bus and ignores the received data.
+ * @post    At the end of the operation the configured callback is invoked.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ * @param[in] n         number of words to be ignored
+ *
+ * @notapi
+ */
+void spi_lld_ignore(SPIDriver *spip, size_t n) {
+
+  (void)spip;
+  (void)n;
+
+}
+
+/**
+ * @brief   Exchanges data on the SPI bus.
+ * @details This asynchronous function starts a simultaneous transmit/receive
+ *          operation.
+ * @post    At the end of the operation the configured callback is invoked.
+ * @note    The buffers are organized as uint8_t arrays for data sizes below or
+ *          equal to 8 bits else it is organized as uint16_t arrays.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ * @param[in] n         number of words to be exchanged
+ * @param[in] txbuf     the pointer to the transmit buffer
+ * @param[out] rxbuf    the pointer to the receive buffer
+ *
+ * @notapi
+ */
+void spi_lld_exchange(SPIDriver *spip, size_t n,
+                      const void *txbuf, void *rxbuf) {
+
+  (void)spip;
+  (void)n;
+  (void)txbuf;
+  (void)rxbuf;
+
+}
+
+/**
+ * @brief   Sends data over the SPI bus.
+ * @details This asynchronous function starts a transmit operation.
+ * @post    At the end of the operation the configured callback is invoked.
+ * @note    The buffers are organized as uint8_t arrays for data sizes below or
+ *          equal to 8 bits else it is organized as uint16_t arrays.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ * @param[in] n         number of words to send
+ * @param[in] txbuf     the pointer to the transmit buffer
+ *
+ * @notapi
+ */
+void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
+
+  (void)spip;
+  (void)n;
+  (void)txbuf;
+
+}
+
+/**
+ * @brief   Receives data from the SPI bus.
+ * @details This asynchronous function starts a receive operation.
+ * @post    At the end of the operation the configured callback is invoked.
+ * @note    The buffers are organized as uint8_t arrays for data sizes below or
+ *          equal to 8 bits else it is organized as uint16_t arrays.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ * @param[in] n         number of words to receive
+ * @param[out] rxbuf    the pointer to the receive buffer
+ *
+ * @notapi
+ */
+void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
+
+  (void)spip;
+  (void)n;
+  (void)rxbuf;
+
+}
+
+#if (SPI_SUPPORTS_CIRCULAR == TRUE) || defined(__DOXYGEN__)
+/**
+ * @brief   Aborts the ongoing SPI operation, if any.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_abort(SPIDriver *spip) {
+
+  (void)spip;
+}
+#endif /* SPI_SUPPORTS_CIRCULAR == TRUE */
+
+/**
+ * @brief   Exchanges one frame using a polled wait.
+ * @details This synchronous function exchanges one frame using a polled
+ *          synchronization method. This function is useful when exchanging
+ *          small amount of data on high speed channels, usually in this
+ *          situation is much more efficient just wait for completion using
+ *          polling than suspending the thread waiting for an interrupt.
+ *
+ * @param[in] spip      pointer to the @p SPIDriver object
+ * @param[in] frame     the data frame to send over the SPI bus
+ * @return              The received data frame from the SPI bus.
+ *
+ * @notapi
+ */
+uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame) {
+
+  (void)spip;
+  (void)frame;
+
+  return 0;
+}
+
+#endif /* HAL_USE_SPI == TRUE */
+
+/** @} */