mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-11-24 05:23:06 +00:00
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
|
#pragma once
|
||
|
#include <furi.h>
|
||
|
#include "one_wire_timings.h"
|
||
|
|
||
|
class OneWireDevice;
|
||
|
typedef void (*OneWireSlaveResultCallback)(bool success, void* ctx);
|
||
|
|
||
|
class OneWireSlave {
|
||
|
private:
|
||
|
enum class OneWireSlaveError : uint8_t {
|
||
|
NO_ERROR = 0,
|
||
|
READ_TIMESLOT_TIMEOUT,
|
||
|
WRITE_TIMESLOT_TIMEOUT,
|
||
|
WAIT_RESET_TIMEOUT,
|
||
|
VERY_LONG_RESET,
|
||
|
VERY_SHORT_RESET,
|
||
|
PRESENCE_LOW_ON_LINE,
|
||
|
READ_TIMESLOT_TIMEOUT_LOW,
|
||
|
AWAIT_TIMESLOT_TIMEOUT_HIGH,
|
||
|
PRESENCE_HIGH_ON_LINE,
|
||
|
INCORRECT_ONEWIRE_CMD,
|
||
|
INCORRECT_SLAVE_USAGE,
|
||
|
TRIED_INCORRECT_WRITE,
|
||
|
FIRST_TIMESLOT_TIMEOUT,
|
||
|
FIRST_BIT_OF_BYTE_TIMEOUT,
|
||
|
RESET_IN_PROGRESS
|
||
|
};
|
||
|
|
||
|
const GpioPin* one_wire_pin_record;
|
||
|
|
||
|
// exti callback and its pointer
|
||
|
void exti_callback(void* _pin, void* _ctx);
|
||
|
void (*exti_cb)(void* _pin, void* _ctx);
|
||
|
|
||
|
uint32_t __instructions_per_us;
|
||
|
|
||
|
OneWireSlaveError error;
|
||
|
OneWireDevice* device = nullptr;
|
||
|
|
||
|
bool bus_start(void);
|
||
|
|
||
|
void pin_set_float(void);
|
||
|
void pin_set_low(void);
|
||
|
void pin_init_interrupt_in_isr_ctx(void);
|
||
|
void pin_init_opendrain_in_isr_ctx(void);
|
||
|
|
||
|
OneWiteTimeType wait_while_gpio_is(OneWiteTimeType time, const bool pin_value);
|
||
|
|
||
|
bool show_presence(void);
|
||
|
bool receive_and_process_cmd(void);
|
||
|
|
||
|
bool receive_bit(void);
|
||
|
bool send_bit(bool value);
|
||
|
|
||
|
void cmd_search_rom(void);
|
||
|
|
||
|
OneWireSlaveResultCallback result_cb = nullptr;
|
||
|
void* result_cb_ctx = nullptr;
|
||
|
|
||
|
public:
|
||
|
void start(void);
|
||
|
void stop(void);
|
||
|
|
||
|
bool send(const uint8_t* address, const uint8_t data_length);
|
||
|
bool receive(uint8_t* data, const uint8_t data_length = 1);
|
||
|
|
||
|
OneWireSlave(const GpioPin* pin);
|
||
|
~OneWireSlave();
|
||
|
|
||
|
void attach(OneWireDevice* device);
|
||
|
void deattach(void);
|
||
|
|
||
|
void set_result_callback(OneWireSlaveResultCallback result_cb, void* ctx);
|
||
|
};
|