#ifndef _DRIVER_PCAL6416A_H_ #define _DRIVER_PCAL6416A_H_ /**************************************************************** * Includes ****************************************************************/ #include /**************************************************************** * Defines ****************************************************************/ // Chip physical address #define PCAL6416A_I2C_ADDR 0x20 // Chip registers adresses #define PCAL6416A_INPUT 0x00 /* Input port [RO] */ #define PCAL6416A_DAT_OUT 0x02 /* GPIO DATA OUT [R/W] */ #define PCAL6416A_POLARITY 0x04 /* Polarity Inversion port [R/W] */ #define PCAL6416A_CONFIG 0x06 /* Configuration port [R/W] */ #define PCAL6416A_DRIVE0 0x40 /* Output drive strength Port0 [R/W] */ #define PCAL6416A_DRIVE1 0x42 /* Output drive strength Port1 [R/W] */ #define PCAL6416A_INPUT_LATCH 0x44 /* Port0 Input latch [R/W] */ #define PCAL6416A_EN_PULLUPDOWN 0x46 /* Port0 Pull-up/Pull-down enbl [R/W] */ #define PCAL6416A_SEL_PULLUPDOWN 0x48 /* Port0 Pull-up/Pull-down slct [R/W] */ #define PCAL6416A_INT_MASK 0x4A /* Interrupt mask [R/W] */ #define PCAL6416A_INT_STATUS 0x4C /* Interrupt status [RO] */ #define PCAL6416A_OUTPUT_CONFIG 0x4F /* Output port config [R/W] */ /**************************************************************** * Public functions ****************************************************************/ bool pcal6416a_init(void); bool pcal6416a_deinit(void); int pcal6416a_read_mask_interrupts(void); int pcal6416a_read_mask_active_GPIOs(void); #endif //_DRIVER_PCAL6416A_H_