flipperzero-firmware/lib/cyfral/cyfral_emulator.h
DrZlo13 8f9b2513ff
[FL-140] Core api dynamic records (#296)
* SYSTEM: tickless mode with deep sleep.
* Move FreeRTOS ticks to lptim2
* API: move all sumbodules init routines to one place. Timebase: working lptim2 at tick source.
* API Timebase: lp-timer routines, timer access safe zones prediction and synchronization. FreeRTOS: adjust configuration for tickless mode.
* NFC: support for tickless mode.
* API Timebase: improve tick error handling in IRQ. Apploader: use insomnia mode to run applications.
* BLE: prevent sleep while core2 starting
* HAL: nap while in insomnia mode
* init records work
* try to implement record delete
* tests and flapp
* flapp subsystem
* new core functions to get app stat, simplify core code
* fix thread termination
* add strdup to core
* fix tests
* Refactoring: remove all unusued parts, update API usage, aggreagate API sources and headers, new record storage
* Refactoring: update furi record api usage, cleanup code
* Fix broken merge for freertos apps
* Core, Target: fix compilation warnings
* Drop firmware target local
* HAL Timebase, Power, Clock: semaphore guarded access to clock and power modes, better sleep mode.
* SD-Filesystem: wait for all deps to arrive before adding widget. Core, BLE: disable debug dump to serial.
* delete old app example-ipc
* delete old app fatfs list
* fix strobe app, add input header
* delete old display driver
* comment old app qr-code
* fix sd-card test, add forced widget update
* remove unused new core test
* increase heap to 128k
* comment and assert old core tests
* fix syntax

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-01-20 19:09:26 +03:00

94 lines
2.2 KiB
C++

#pragma once
#include <furi.h>
class CyfralTiming {
public:
constexpr static const uint8_t ZERO_HIGH = 50;
constexpr static const uint8_t ZERO_LOW = 70;
constexpr static const uint8_t ONE_HIGH = 100;
constexpr static const uint8_t ONE_LOW = 70;
};
class CyfralEmulator {
private:
void send_nibble(uint8_t nibble);
void send_byte(uint8_t data);
inline void send_bit(bool bit);
const GpioPin* emulate_pin_record;
public:
CyfralEmulator(const GpioPin* emulate_pin);
~CyfralEmulator();
void send(uint8_t* data, uint8_t count = 1, uint8_t repeat = 1);
void start(void);
void stop(void);
};
// 7 = 0 1 1 1
// B = 1 0 1 1
// D = 1 1 0 1
// E = 1 1 1 0
void CyfralEmulator::send_nibble(uint8_t nibble) {
for(uint8_t i = 0; i < 4; i++) {
bool bit = nibble & (0b1000 >> i);
send_bit(bit);
}
}
void CyfralEmulator::send_byte(uint8_t data) {
for(uint8_t i = 0; i < 8; i++) {
bool bit = data & (0b10000000 >> i);
send_bit(bit);
}
}
void CyfralEmulator::send_bit(bool bit) {
if(!bit) {
gpio_write(&ibutton_gpio, false);
delay_us(CyfralTiming::ZERO_LOW);
gpio_write(&ibutton_gpio, true);
delay_us(CyfralTiming::ZERO_HIGH);
gpio_write(&ibutton_gpio, false);
delay_us(CyfralTiming::ZERO_LOW);
} else {
gpio_write(&ibutton_gpio, true);
delay_us(CyfralTiming::ONE_HIGH);
gpio_write(&ibutton_gpio, false);
delay_us(CyfralTiming::ONE_LOW);
}
}
CyfralEmulator::CyfralEmulator(const GpioPin* emulate_pin) {
emulate_pin_record = emulate_pin;
}
CyfralEmulator::~CyfralEmulator() {
}
void CyfralEmulator::send(uint8_t* data, uint8_t count, uint8_t repeat) {
osKernelLock();
__disable_irq();
for(uint8_t i = 0; i < repeat; i++) {
// start sequence
send_nibble(0x01);
// send data
for(uint8_t i = 0; i < count; i++) {
send_byte(data[i]);
}
}
__enable_irq();
osKernelUnlock();
}
void CyfralEmulator::start(void) {
gpio_init(emulate_pin_record, GpioModeOutputOpenDrain);
gpio_write(emulate_pin_record, false);
}
void CyfralEmulator::stop(void) {
gpio_init(emulate_pin_record, GpioModeAnalog);
}