pin.h

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#ifndef STC15_PINH
#define STC15_PINH
#include <sys.h>
#include <bits.h>
#include <stdint.h>
#include <stdbool.h>
 
#define pin_quasi_bidiretional_init(port, port_pin)             \
do {                                                            \
    bit_clr(port ## M1, ~(1 << port_pin));                      \
    bit_clr(port ## M0, ~(1 << port_pin));                      \
} while(0)
 
#define pin_push_pull_init(port, port_pin)                      \
do {                                                            \
    bit_clr(port ## M1, ~(1 << port_pin));                      \
    bit_set(port ## M0, 1 << port_pin);                         \
} while(0)
 
#define pin_input_only_init(port, port_pin)                     \
do {                                                            \
    bit_set(port ## M1, 1 << port_pin);                         \
    bit_clr(port ## M0, ~(1 << port_pin));                      \
} while(0)
 
#define pin_open_drain_init(port, port_pin)                     \
do {                                                            \
    bit_set(port ## M1, 1 << port_pin);                         \
    bit_set(port ## M0, 1 << port_pin);                         \
} while(0)
 
#define is_pin_mode_quasi_bidiretional(port, port_pin)  ( ((port ## M1 & (1 << port_pin)) == 0) && ((port ## M0 & (1 << port_pin)) == 0 ) )
 
#define is_pin_mode_push_pull(port, port_pin)           ( ((port ## M1 & (1 << port_pin)) == 0) && ((port ## M0 & (1 << port_pin)) != 0) )
 
#define is_pin_mode_input_only(port, port_pin)          ( ((port ## M1 & (1 << port_pin)) != 0) && ((port ## M0 & (1 << port_pin)) == 0) )
 
#define is_pin_mode_open_drain(port, port_pin)          ( ((port ## M1 & (1 << port_pin)) != 0) && ((port ## M0 & (1 << port_pin)) != 0) )
 
#define pin_port_quasi_bidiretional_init(port)      \
do {                                                \
    port ## M1 = 0x00;                              \
    port ## M0 = 0x00;                              \
} while(0)
 
#define pin_port_pull_push_init(port)              \
do {                                               \
    port ## M1 = 0x00;                             \
    port ## M0 = 0xff;                             \
} while(0)
 
#define pin_port_input_only_init(port)              \
do {                                                \
    port ## M1 = 0xff;                              \
    port ## M0 = 0x00;                              \
} while(0)
 
#define pin_port_open_drain_init(port)              \
do {                                                \
    port ## M1 = 0xff;                              \
    port ## M0 = 0xff;                              \
} while(0)
 
#endif