1 files changed, 142 insertions, 0 deletions

diff --git a/lib/chibios/os/hal/ports/LPC/LPC214x/hal_spi_lld.h b/lib/chibios/os/hal/ports/LPC/LPC214x/hal_spi_lld.h
new file mode 100644
index 000000000..b108a540f
--- /dev/null
+++ b/lib/chibios/os/hal/ports/LPC/LPC214x/hal_spi_lld.h
@@ -0,0 +1,142 @@
+/*
+    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    LPC214x/hal_spi_lld.h
+ * @brief   LPC214x low level SPI driver header.
+ *
+ * @addtogroup SPI
+ * @{
+ */
+
+#ifndef HAL_SPI_LLD_H
+#define HAL_SPI_LLD_H
+
+#if HAL_USE_SPI || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Circular mode support flag.
+ */
+#define SPI_SUPPORTS_CIRCULAR           FALSE
+
+/**
+ * @brief   Hardware FIFO depth.
+ */
+#define LPC214x_SSP_FIFO_DEPTH          8
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   SPI1 driver enable switch.
+ * @details If set to @p TRUE the support for SSP is included.
+ * @note    The default is @p TRUE.
+ */
+#if !defined(LPC214x_SPI_USE_SSP) || defined(__DOXYGEN__)
+#define LPC214x_SPI_USE_SSP             TRUE
+#endif
+
+/**
+ * @brief   SSP interrupt priority level setting.
+ */
+#if !defined(LPC214x_SPI_SSP_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC214x_SPI_SSP_IRQ_PRIORITY    4
+#endif
+
+/**
+ * @brief   Overflow error hook.
+ * @details The default action is to stop the system.
+ */
+#if !defined(LPC214x_SPI_SSP_ERROR_HOOK) || defined(__DOXYGEN__)
+#define LPC214x_SPI_SSP_ERROR_HOOK()    osalSysHalt("overflow")
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+#if !LPC214x_SPI_USE_SSP
+#error "SPI driver activated but no SPI peripheral assigned"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level fields of the SPI driver structure.
+ */
+#define spi_lld_driver_fields                                               \
+  /* Pointer to the SSP registers block.*/                                  \
+  SSP                   *ssp;                                               \
+  /* Number of bytes yet to be received.*/                                  \
+  uint32_t              rxcnt;                                              \
+  /* Receive pointer or @p NULL.*/                                          \
+  void                  *rxptr;                                             \
+  /* Number of bytes yet to be transmitted.*/                               \
+  uint32_t              txcnt;                                              \
+  /* Transmit pointer or @p NULL.*/                                         \
+  const void            *txptr
+
+/**
+ * @brief   Low level fields of the SPI configuration structure.
+ */
+#define spi_lld_config_fields                                               \
+  /* SSP CR0 initialization data.*/                                         \
+  uint16_t                  cr0;                                            \
+  /* SSP CPSR initialization data.*/                                        \
+  uint32_t                  cpsr
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if LPC214x_SPI_USE_SSP && !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 */
+
+#endif /* HAL_SPI_LLD_H */
+
+/** @} */