/* 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 . */ /** * @file STM8S/pal_lld.h * @brief STM8S 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 STM8S specific alternate push-pull slow output mode. */ #define PAL_MODE_OUTPUT_PUSHPULL_SLOW 16 /** * @brief STM8S 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 defined(STM8S105) || defined(__DOXYGEN__) GPIO_TypeDef P[7]; #elif defined(STM8S207) || defined(STM8S208) GPIO_TypeDef P[9]; #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) /** * @brief GPIO port A identifier. */ #define IOPORT1 GPIOA /** * @brief GPIO port B identifier. */ #define IOPORT2 GPIOB /** * @brief GPIO port C identifier. */ #define IOPORT3 GPIOC /** * @brief GPIO port D identifier. */ #define IOPORT4 GPIOD /** * @brief GPIO port E identifier. */ #define IOPORT5 GPIOE /** * @brief GPIO port F identifier. */ #define IOPORT6 GPIOF #if defined(STM8S207) || defined(STM8S208) || defined(STM8S105) || \ defined(__DOXYGEN__) /** * @brief GPIO port G identifier. */ #define IOPORT7 GPIOG #endif #if defined(STM8S207) || defined(STM8S208) || defined(__DOXYGEN__) /** * @brief GPIO port H identifier. */ #define IOPORT8 GPIOH /** * @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_ */ /** @} */