Low frequency RFID app [Read stage] (#385)

* App Lfrfid: init
* HAL-resources: add external gpios
* HAL-pwm: fix frequency calculation
* App LFRFID: generic manchester decoder
* App LFRFID: em-marine decoder
* App iButton: fix dwt timing acquire
* App LFRFID: rfid reader
* App LFRFID: temporary read keys on read scene
* App LFRFID: remove atomic bool init.
* App LFRFID: add *.c to build
* App LFRFID: unstable HID decoder
* App LFRFID: HID-26 reading
* HAL OS: disable sleep
* App LFRFID: HID-26 reader: remove debug
* App LFRFID: static data decoder-analyzer
* App LFRFID: very raw Indala decoder
* App LFRFID: multiprotocol reader
* App LFRFID: more reliable HID decoder
* App LFRFID: syntax fix
* App LFRFID: simple read scene
* Gui: force redraw on screen stream connect
* HAL-OS: allow sleep
* App LFRFID: notify api, tune view, tune scene
* App LFRFID: simple rfid emulator
* App LFRFID: more scenes, more reliable EM decoder.
* App LFRFID: format fix
* App LFRFID: warning fix
* Api-hal-resources: add rfid pins, rename external pins
* App LFRFID: remove unused emulator
* App LFRFID: use new gpio hal api
* App accessor: use new ext gpio name
* App LFRFID: remove unused emulator
* App LFRFID: remove debug gpio
* Api-hal-resources: alternate functions init
* Api-hal-rfid: new api
* Api-hal-ibutton: new api
* Api-hal: new headers
* App LFRFID: use new api in reader subroutines
* App LFRFID: use new api in emulator subroutines
* App LFRFID: remove old app
* App LFRFID, App iButton: fix memleak
* Api-hal-rfid: comments
* App LFRFID: pulse joiner helper, it combines pulses of different polarity into one pulse suitable for a timer
* App LFRFID: pulse joiner, now can accept only ne pulse
* App LFRFID: pulse joiner, fixes
* App LFRFID: EM encoder and emulation
* App LFRFID: format fixes
* App LFRFID: emmarine encoder cleanup
* App LFRFID: HID Encoder blank
* App LFRFID: Indala Encoder blank

firmware/targets/api-hal-include/api-hal-ibutton.h

@@ -0,0 +1,20 @@
+#pragma once
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void api_hal_ibutton_start();
+
+void api_hal_ibutton_stop();
+
+void api_hal_ibutton_pin_low();
+
+void api_hal_ibutton_pin_high();
+
+bool api_hal_ibutton_pin_get_level();
+
+#ifdef __cplusplus
+}
+#endif

firmware/targets/api-hal-include/api-hal-rfid.h

@@ -0,0 +1,73 @@
+#pragma once
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief config rfid pins to reset state
+ * 
+ */
+void api_hal_rfid_pins_reset();
+
+/**
+ * @brief config rfid pins to emulate state
+ * 
+ */
+void api_hal_rfid_pins_emulate();
+
+/**
+ * @brief config rfid pins to read state
+ * 
+ */
+void api_hal_rfid_pins_read();
+
+/**
+ * @brief config rfid timer to read state
+ * 
+ * @param freq timer frequency
+ * @param duty_cycle timer duty cycle, 0.0-1.0
+ */
+void api_hal_rfid_tim_read(float freq, float duty_cycle);
+
+/**
+ * @brief start read timer
+ * 
+ */
+void api_hal_rfid_tim_read_start();
+
+/**
+ * @brief stop read timer
+ * 
+ */
+void api_hal_rfid_tim_read_stop();
+
+/**
+ * @brief config rfid timer to emulate state
+ * 
+ * @param freq timer frequency
+ */
+void api_hal_rfid_tim_emulate(float freq);
+
+/**
+ * @brief start emulation timer
+ * 
+ */
+void api_hal_rfid_tim_emulate_start();
+
+/**
+ * @brief stop emulation timer
+ * 
+ */
+void api_hal_rfid_tim_emulate_stop();
+
+/**
+ * @brief config rfid timers to reset state
+ * 
+ */
+void api_hal_rfid_tim_reset();
+
+#ifdef __cplusplus
+}
+#endif

firmware/targets/api-hal-include/api-hal.h

@@ -23,6 +23,8 @@ template <unsigned int N> struct STOP_EXTERNING_ME {};
 #include "api-hal-flash.h"
 #include "api-hal-subghz.h"
 #include "api-hal-vibro.h"
+#include "api-hal-ibutton.h"
+#include "api-hal-rfid.h"
 
 /** Init api-hal */
 void api_hal_init();