X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Feeprom.h;h=21ae105ae6c49a3faa3ba536b30912f769a26f83;hb=2535cb94ec2183791128f8bbd109ca69a960cf78;hp=6d2caf032d5ec6860eaeb487170091912b3316aa;hpb=277b540c0764dd376dcf583acdc97a2b2fd3d8e6;p=bertos.git diff --git a/drv/eeprom.h b/drv/eeprom.h old mode 100755 new mode 100644 index 6d2caf03..21ae105a --- a/drv/eeprom.h +++ b/drv/eeprom.h @@ -1,8 +1,33 @@ -/*! +/** * \file * * * \version $Id$ @@ -13,28 +38,13 @@ * \brief Driver for the 24xx16 and 24xx256 I2C EEPROMS (interface) */ -/*#* - *#* $Log$ - *#* Revision 1.4 2004/08/25 14:12:08 rasky - *#* Aggiornato il comment block dei log RCS - *#* - *#* Revision 1.3 2004/08/10 06:57:22 bernie - *#* eeprom_erase(): New function. - *#* - *#* Revision 1.2 2004/07/29 22:57:09 bernie - *#* Add 24LC16 support. - *#* - *#* Revision 1.1 2004/07/20 17:11:18 bernie - *#* Import into DevLib. - *#* - *#*/ #ifndef DRV_EEPROM_H #define DRV_EEPROM_H -#include -#include +#include +#include -/*! +/** * \name Values for CONFIG_EEPROM_TYPE * \{ */ @@ -43,18 +53,30 @@ /*\}*/ #if CONFIG_EEPROM_TYPE == EEPROM_24XX16 - #define EEPROM_BLKSIZE 0x10 //!< Eeprom block size (16byte) - #define EEPROM_SIZE 0x800 //!< Eeprom total size (2kB) + #define EEPROM_BLKSIZE 0x10 ///< Eeprom block size (16byte) + #define EEPROM_SIZE 0x800 ///< Eeprom total size (2kB) #elif CONFIG_EEPROM_TYPE == EEPROM_24XX256 - #define EEPROM_BLKSIZE 0x40 //!< Eeprom block size (64byte) - #define EEPROM_SIZE 0x8000 //!< Eeprom total size (32kB) + #define EEPROM_BLKSIZE 0x40 ///< Eeprom block size (64byte) + #define EEPROM_SIZE 0x8000 ///< Eeprom total size (32kB) #else #error Unsupported EEPROM type. #endif -//! Type for EEPROM addresses +/// Type for EEPROM addresses typedef uint16_t e2addr_t; +/** + * Macro for E2Layout offset calculation + * + * \note We can't just use offsetof() here because we could use + * non-constant expressions to access array elements. + * + * \note 'type' is the structure type holding eeprom layout + * and must be defined in user files. + */ +#define e2addr(type, field) ((e2addr_t)&(((type *)0)->field)) + + bool eeprom_write(e2addr_t addr, const void *buf, size_t count); bool eeprom_read(e2addr_t addr, void *buf, size_t count); bool eeprom_write_char(e2addr_t addr, char c);