From d4c616e6eeb0587ca450c75b1086efa77ac690e5 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sun, 29 Nov 2009 08:50:13 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1351
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/include/spi.h | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 os/hal/include/spi.h

(limited to 'os/hal/include/spi.h')

diff --git a/os/hal/include/spi.h b/os/hal/include/spi.h
new file mode 100644
index 000000000..6f17f69c2
--- /dev/null
+++ b/os/hal/include/spi.h
@@ -0,0 +1,80 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS/RT is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file spi.h
+ * @brief SPI Driver macros and structures.
+ * @addtogroup SPI
+ * @{
+ */
+
+#ifndef _SPI_H_
+#define _SPI_H_
+
+#if CH_HAL_USE_SPI
+
+/**
+ * @brief Enables the mutual exclusion APIs on the SPI bus.
+ */
+#if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define SPI_USE_MUTUAL_EXCLUSION    TRUE
+#endif
+
+#if SPI_USE_MUTUAL_EXCLUSION && !CH_USE_MUTEXES && !CH_USE_SEMAPHORES
+#error "SPI_USE_MUTUAL_EXCLUSION requires CH_USE_MUTEXES and/or CH_USE_SEMAPHORES"
+#endif
+
+/**
+ * @brief Driver state machine possible states.
+ */
+typedef enum {
+  SPI_UNINIT = 0,                           /**< @brief Not initialized.    */
+  SPI_STOP = 1,                             /**< @brief Stopped.            */
+  SPI_READY = 2,                            /**< @brief Ready.              */
+  SPI_ACTIVE = 3                            /**< @brief Slave selected.     */
+} spistate_t;
+
+#include "spi_lld.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void spiInit(void);
+  void spiObjectInit(SPIDriver *spip);
+  void spiStart(SPIDriver *spip, const SPIConfig *config);
+  void spiStop(SPIDriver *spip);
+  void spiSelect(SPIDriver *spip);
+  void spiUnselect(SPIDriver *spip);
+  void spiIgnore(SPIDriver *spip, size_t n);
+  void spiExchange(SPIDriver *spip, size_t n, const void *txbuf, void *rxbuf);
+  void spiSend(SPIDriver *spip, size_t n, const void *txbuf);
+  void spiReceive(SPIDriver *spip, size_t n, void *rxbuf);
+#if SPI_USE_MUTUAL_EXCLUSION
+  void spiAcquireBus(SPIDriver *spip);
+  void spiReleaseBus(SPIDriver *spip);
+#endif /* SPI_USE_MUTUAL_EXCLUSION */
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CH_HAL_USE_SPI */
+
+#endif /* _SPI_H_ */
+
+/** @} */
-- 
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