X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fdrv%2Fpcf8574.h;h=dd33ed4aef0a92afde518ca8b41df857ed4b1ef5;hb=024bf80e5f29e4de00d0813d23a4d3b67245ead7;hp=2041b4808c58af5e995020070162b39cd8c3221d;hpb=b46f64914c62fbb0297728280478681659469654;p=bertos.git diff --git a/bertos/drv/pcf8574.h b/bertos/drv/pcf8574.h index 2041b480..dd33ed4a 100644 --- a/bertos/drv/pcf8574.h +++ b/bertos/drv/pcf8574.h @@ -41,8 +41,22 @@ #ifndef DRV_PCF8574_H #define DRV_PCF8574_H +#include "cfg/cfg_i2c.h" + #include +#include + +#if COMPILER_C99 + #define pcf8574_init(...) PP_CAT(pcf8574_init ## _, COUNT_PARMS(__VA_ARGS__)) (__VA_ARGS__) + #define pcf8574_get(...) PP_CAT(pcf8574_get ## _, COUNT_PARMS(__VA_ARGS__)) (__VA_ARGS__) + #define pcf8574_put(...) PP_CAT(pcf8574_put ## _, COUNT_PARMS(__VA_ARGS__)) (__VA_ARGS__) +#else + #define pcf8574_init(args...) PP_CAT(pcf8574_init ## _, COUNT_PARMS(args)) (args) + #define pcf8574_get(args...) PP_CAT(pcf8574_get ## _, COUNT_PARMS(args)) (args) + #define pcf8574_put(args...) PP_CAT(pcf8574_put ## _, COUNT_PARMS(args)) (args) +#endif + typedef uint8_t pcf8574_addr; /** @@ -55,8 +69,40 @@ typedef struct Pcf8574 #define PCF8574ID 0x40 ///< I2C address -int pcf8574_get(Pcf8574 *pcf); -bool pcf8574_put(Pcf8574 *pcf, uint8_t data); -bool pcf8574_init(Pcf8574 *pcf, pcf8574_addr addr); +/** + * Read PCF8574 \a pcf bit status. + * \return the pins status or EOF on errors. + */ +int pcf8574_get_2(I2c *i2c, Pcf8574 *pcf); + +/** + * Write to PCF8574 \a pcf port \a data. + * \return true if ok, false on errors. + */ +bool pcf8574_put_3(I2c *i2c, Pcf8574 *pcf, uint8_t data); + +/** + * Init a PCF8574 on the bus with addr \a addr. + * \return true if device is found, false otherwise. + */ +bool pcf8574_init_3(I2c *i2c, Pcf8574 *pcf, pcf8574_addr addr); + +#if !CONFIG_I2C_DISABLE_OLD_API + +DEPRECATED INLINE int pcf8574_get_1(Pcf8574 *pcf) +{ + return pcf8574_get_2(&local_i2c_old_api, pcf); +} + +DEPRECATED INLINE bool pcf8574_put_2(Pcf8574 *pcf, uint8_t data) +{ + return pcf8574_put_3(&local_i2c_old_api, pcf, data); +} + +DEPRECATED INLINE bool pcf8574_init_2(Pcf8574 *pcf, pcf8574_addr addr) +{ + return pcf8574_init_3(&local_i2c_old_api, pcf, addr); +} +#endif /* !CONFIG_I2C_DISABLE_OLD_API */ #endif /* DRV_PCF8574_H */