252 lines
6.8 KiB
C
252 lines
6.8 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
|
2011 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 STM8L/pal_lld.h
|
|
* @brief STM8L GPIO low level driver header.
|
|
*
|
|
* @addtogroup PAL
|
|
* @{
|
|
*/
|
|
|
|
#ifndef _PAL_LLD_H_
|
|
#define _PAL_LLD_H_
|
|
|
|
#if HAL_USE_PAL || defined(__DOXYGEN__)
|
|
|
|
/*===========================================================================*/
|
|
/* Unsupported modes and specific modes */
|
|
/*===========================================================================*/
|
|
|
|
#undef PAL_MODE_INPUT_PULLDOWN
|
|
|
|
/**
|
|
* @brief STM8L specific alternate push-pull slow output mode.
|
|
*/
|
|
#define PAL_MODE_OUTPUT_PUSHPULL_SLOW 16
|
|
|
|
/**
|
|
* @brief STM8L specific alternate open-drain slow output mode.
|
|
*/
|
|
#define PAL_MODE_OUTPUT_OPENDRAIN_SLOW 17
|
|
|
|
/*===========================================================================*/
|
|
/* I/O Ports Types and constants. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief Generic I/O ports static initializer.
|
|
* @details An instance of this structure must be passed to @p palInit() at
|
|
* system startup time in order to initialized the digital I/O
|
|
* subsystem. This represents only the initial setup, specific pads
|
|
* or whole ports can be reprogrammed at later time.
|
|
*/
|
|
typedef struct {
|
|
#if STM8L_HAS_GPIOI || defined(__DOXYGEN__)
|
|
GPIO_TypeDef P[9];
|
|
#elif STM8L_HAS_GPIOH || defined(__DOXYGEN__)
|
|
GPIO_TypeDef P[8];
|
|
#elif STM8L_HAS_GPIOG || defined(__DOXYGEN__)
|
|
GPIO_TypeDef P[7];
|
|
#else
|
|
GPIO_TypeDef P[6];
|
|
#endif
|
|
} PALConfig;
|
|
|
|
/**
|
|
* @brief Width, in bits, of an I/O port.
|
|
*/
|
|
#define PAL_IOPORTS_WIDTH 8
|
|
|
|
/**
|
|
* @brief Whole port mask.
|
|
* @brief This macro specifies all the valid bits into a port.
|
|
*/
|
|
#define PAL_WHOLE_PORT ((ioportmask_t)0xFF)
|
|
|
|
/**
|
|
* @brief Digital I/O port sized unsigned type.
|
|
*/
|
|
typedef uint8_t ioportmask_t;
|
|
|
|
/**
|
|
* @brief Port Identifier.
|
|
*/
|
|
typedef GPIO_TypeDef *ioportid_t;
|
|
|
|
/*===========================================================================*/
|
|
/* I/O Ports Identifiers. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief GPIO ports as a whole.
|
|
*/
|
|
#define IOPORTS ((PALConfig *)0x5000)
|
|
|
|
#if STM8L_HAS_GPIOA || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port A identifier.
|
|
*/
|
|
#define IOPORT1 GPIOA
|
|
#endif
|
|
|
|
#if STM8L_HAS_GPIOB || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port B identifier.
|
|
*/
|
|
#define IOPORT2 GPIOB
|
|
#endif
|
|
|
|
#if STM8L_HAS_GPIOC || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port C identifier.
|
|
*/
|
|
#define IOPORT3 GPIOC
|
|
#endif
|
|
|
|
#if STM8L_HAS_GPIOD || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port D identifier.
|
|
*/
|
|
#define IOPORT4 GPIOD
|
|
#endif
|
|
|
|
#if STM8L_HAS_GPIOE || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port E identifier.
|
|
*/
|
|
#define IOPORT5 GPIOE
|
|
#endif
|
|
|
|
#if STM8L_HAS_GPIOF || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port F identifier.
|
|
*/
|
|
#define IOPORT6 GPIOF
|
|
#endif
|
|
|
|
#if STM8L_HAS_GPIOG || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port G identifier.
|
|
*/
|
|
#define IOPORT7 GPIOG
|
|
#endif
|
|
|
|
#if STM8L_HAS_GPIOH || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port H identifier.
|
|
*/
|
|
#define IOPORT8 GPIOH
|
|
#endif
|
|
|
|
#if STM8L_HAS_GPIOI || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief GPIO port I identifier.
|
|
*/
|
|
#define IOPORT9 GPIOI
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Implementation, some of the following macros could be implemented as */
|
|
/* functions, if so please put them in pal_lld.c. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief Low level PAL subsystem initialization.
|
|
*
|
|
* @param[in] config architecture-dependent ports configuration
|
|
*
|
|
* @notapi
|
|
*/
|
|
#define pal_lld_init(config) (*IOPORTS = *(config))
|
|
|
|
/**
|
|
* @brief Reads the physical I/O port states.
|
|
* @note This function is not meant to be invoked directly by the
|
|
* application code.
|
|
*
|
|
* @param[in] port port identifier
|
|
* @return The port bits.
|
|
*
|
|
* @notapi
|
|
*/
|
|
#define pal_lld_readport(port) ((port)->IDR)
|
|
|
|
/**
|
|
* @brief Reads the output latch.
|
|
* @details The purpose of this function is to read back the latched output
|
|
* value.
|
|
* @note This function is not meant to be invoked directly by the
|
|
* application code.
|
|
*
|
|
* @param[in] port port identifier
|
|
* @return The latched logical states.
|
|
*
|
|
* @notapi
|
|
*/
|
|
#define pal_lld_readlatch(port) ((port)->ODR)
|
|
|
|
/**
|
|
* @brief Writes a bits mask on a I/O port.
|
|
* @note This function is not meant to be invoked directly by the
|
|
* application code.
|
|
*
|
|
* @param[in] port port identifier
|
|
* @param[in] bits bits to be written on the specified port
|
|
*
|
|
* @notapi
|
|
*/
|
|
#define pal_lld_writeport(port, bits) ((port)->ODR = (bits))
|
|
|
|
/**
|
|
* @brief Pads group mode setup.
|
|
* @details This function programs a pads group belonging to the same port
|
|
* with the specified mode.
|
|
* @note This function is not meant to be invoked directly by the
|
|
* application code.
|
|
* @note Programming an unknown or unsupported mode is silently ignored.
|
|
*
|
|
* @param[in] port port identifier
|
|
* @param[in] mask group mask
|
|
* @param[in] mode group mode
|
|
*
|
|
* @notapi
|
|
*/
|
|
#define pal_lld_setgroupmode(port, mask, mode) \
|
|
_pal_lld_setgroupmode(port, mask, mode)
|
|
|
|
extern ROMCONST PALConfig pal_default_config;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
void _pal_lld_setgroupmode(ioportid_t port,
|
|
ioportmask_t mask,
|
|
uint_fast8_t mode);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* HAL_USE_PAL */
|
|
|
|
#endif /* _PAL_LLD_H_ */
|
|
|
|
/** @} */
|