mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-09-21 16:45:56 +00:00
165 lines
4.9 KiB
C
Executable File
165 lines
4.9 KiB
C
Executable File
/*
|
|
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_ */
|
|
|
|
/** @} */
|