ChibiOS 2.6.8, until I can figure out where to get it from git.

firmware/chibios/os/hal/templates/i2c_lld.h

@@ -0,0 +1,164 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 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    templates/i2c_lld.h
+ * @brief   I2C Driver subsystem low level driver header template.
+ *
+ * @addtogroup I2C
+ * @{
+ */
+
+#ifndef _I2C_LLD_H_
+#define _I2C_LLD_H_
+
+#if HAL_USE_I2C || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @name    Configuration options
+ * @{
+ */
+/**
+ * @brief   I2C1 driver enable switch.
+ * @details If set to @p TRUE the support for I2C1 is included.
+ * @note    The default is @p FALSE.
+ */
+#if !defined(PLATFORM_I2C_USE_I2C1) || defined(__DOXYGEN__)
+#define PLATFORM_I2C_USE_I2C1               FALSE
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Type representing I2C address.
+ */
+typedef uint16_t i2caddr_t;
+
+/**
+ * @brief   Type of I2C Driver condition flags.
+ */
+typedef uint32_t i2cflags_t;
+
+/**
+ * @brief   Driver configuration structure.
+ * @note    Implementations may extend this structure to contain more,
+ *          architecture dependent, fields.
+ */
+
+/**
+ * @brief Driver configuration structure.
+ */
+typedef struct {
+  uint32_t                  dummy;
+} I2CConfig;
+
+/**
+ * @brief   Type of a structure representing an I2C driver.
+ */
+typedef struct I2CDriver I2CDriver;
+
+/**
+ * @brief Structure representing an I2C driver.
+ */
+struct I2CDriver {
+  /**
+   * @brief   Driver state.
+   */
+  i2cstate_t                state;
+  /**
+   * @brief   Current configuration data.
+   */
+  const I2CConfig           *config;
+  /**
+   * @brief   Error flags.
+   */
+  i2cflags_t                errors;
+#if I2C_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
+#if CH_USE_MUTEXES || defined(__DOXYGEN__)
+  /**
+   * @brief   Mutex protecting the bus.
+   */
+  Mutex                     mutex;
+#elif CH_USE_SEMAPHORES
+  Semaphore                 semaphore;
+#endif
+#endif /* I2C_USE_MUTUAL_EXCLUSION */
+#if defined(I2C_DRIVER_EXT_FIELDS)
+  I2C_DRIVER_EXT_FIELDS
+#endif
+  /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/**
+ * @brief   Get errors from I2C driver.
+ *
+ * @param[in] i2cp      pointer to the @p I2CDriver object
+ *
+ * @notapi
+ */
+#define i2c_lld_get_errors(i2cp) ((i2cp)->errors)
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if !defined(__DOXYGEN__)
+#if PLATFORM_I2C_USE_I2C1
+extern I2CDriver I2CD1;
+#endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void i2c_lld_init(void);
+  void i2c_lld_start(I2CDriver *i2cp);
+  void i2c_lld_stop(I2CDriver *i2cp);
+  msg_t i2c_lld_master_transmit_timeout(I2CDriver *i2cp, i2caddr_t addr,
+                                        const uint8_t *txbuf, size_t txbytes,
+                                        uint8_t *rxbuf, size_t rxbytes,
+                                        systime_t timeout);
+  msg_t i2c_lld_master_receive_timeout(I2CDriver *i2cp, i2caddr_t addr,
+                                       uint8_t *rxbuf, size_t rxbytes,
+                                       systime_t timeout);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_I2C */
+
+#endif /* _I2C_LLD_H_ */
+
+/** @} */