mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2025-12-26 06:53:52 +01:00
dab11d7a9c
This allows I2C emulation on native architecture in the same way than periph_gpio_mock. All I2C functions from this driver are set as weak to be easily overridden in each application. Signed-off-by: Gilles DOFFE <g.doffe@gmail.com>
132 lines
2.7 KiB
C
132 lines
2.7 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2014 Ludwig Knüpfer <ludwig.knuepfer@fu-berlin.de>
|
|
* SPDX-License-Identifier: LGPL-2.1-only
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
/**
|
|
* @addtogroup cpu_native
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Native CPU peripheral configuration
|
|
* @author Ludwig Knüpfer <ludwig.knuepfer@fu-berlin.de>
|
|
*/
|
|
|
|
#include "macros/units.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @brief System core clock in Hz
|
|
*
|
|
* 1GHz is an arbitrary value used for compatibility with other platforms.
|
|
*/
|
|
#if !defined(CLOCK_CORECLOCK) || defined(DOXYGEN)
|
|
# define CLOCK_CORECLOCK GHZ(1)
|
|
#endif
|
|
|
|
/**
|
|
* @brief Hardware timer clock skew avoidance
|
|
*/
|
|
#define NATIVE_TIMER_MIN_RES 200
|
|
|
|
/**
|
|
* @brief Random Number Generator configuration
|
|
*/
|
|
#define RANDOM_NUMOF (1U)
|
|
|
|
/* MARK: - Timer peripheral configuration */
|
|
/**
|
|
* @name Timer peripheral configuration
|
|
* @{
|
|
*/
|
|
#define TIMER_NUMOF (1U)
|
|
#define TIMER_CHANNEL_NUMOF (1U) /**< Number of timer channels */
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief UART configuration
|
|
*/
|
|
#if !defined(UART_NUMOF) || defined(DOXYGEN)
|
|
# define UART_NUMOF (1U)
|
|
#endif
|
|
|
|
/**
|
|
* @brief PWM configuration
|
|
*/
|
|
#if !defined(PWM_NUMOF) || defined(DOXYGEN)
|
|
# define PWM_NUMOF (8U)
|
|
#endif
|
|
|
|
/**
|
|
* @brief QDEC configuration
|
|
*/
|
|
#if !defined(QDEC_NUMOF) || defined(DOXYGEN)
|
|
# define QDEC_NUMOF (8U)
|
|
#endif
|
|
|
|
/* MARK: - I2C configuration (mock implementation) */
|
|
/**
|
|
* @name I2C configuration (mock implementation)
|
|
* @{
|
|
*/
|
|
#if !defined(I2C_NUMOF) || defined(DOXYGEN)
|
|
/**
|
|
* @brief Amount of I2C devices
|
|
*
|
|
* Can be overridden during compile time with `CFLAGS+=-DI2C_NUMOF=n`.
|
|
*/
|
|
# define I2C_NUMOF 1
|
|
#endif
|
|
/** @} */
|
|
|
|
/**
|
|
* @name SPI configuration (Linux host only)
|
|
* @{
|
|
*/
|
|
#if !defined(SPI_NUMOF) || defined(DOXYGEN)
|
|
/**
|
|
* @brief Amount of SPI devices
|
|
*
|
|
* Allows up to SPI_NUMOF SPI devices with each having up to SPI_MAXCS hardware
|
|
* cable select lines. Assignment to hardware devices can be configured at
|
|
* runtime using the `--spi` startup parameter.
|
|
*
|
|
* Can be overridden during compile time with a `-DSPI_NUMOF=n` flag.
|
|
*/
|
|
# define SPI_NUMOF (1U)
|
|
#endif
|
|
|
|
#if !defined(SPI_MAXCS) || defined(DOXYGEN)
|
|
/**
|
|
* @brief Maximum amount of chip select lines per bus
|
|
*
|
|
* Allows up to SPI_MAXCS hardware cable select lines per SPI device. The n-th
|
|
* hardware select line can be used with the SPI_HWCS macro.
|
|
*/
|
|
# define SPI_MAXCS (4U)
|
|
#endif
|
|
|
|
/**
|
|
* @brief Hardware chip select access macro.
|
|
*
|
|
* The amount of available hardware chip select lines depends on the SPI_MAXCS
|
|
* parameter. If the line is actually available at runtime depends of whether a
|
|
* `--spi` startup parameter with the corresponding SPI device and HWCS-line
|
|
* parameter has been given.
|
|
*/
|
|
#define SPI_HWCS(x) (UINT_MAX - SPI_MAXCS + x)
|
|
/** @} */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/** @} */
|