Commit graph

87 commits

Author SHA1 Message Date
Skorpionm
02b9cf90d5
[FL-2431, FL-2419] SubGhz: bugfixes (#1098)
* [FL-2431] SubGhz: fix Restart with an error (HardFault), while maintaining the RAW signal.
* Stream: fix adding maximum string length to arguments
* [FL-2419] SubGhz: fix flipper hang/Fatal Error when running edited Sub-GHz file.
* SubGhz: remove replace strcpy with strncpy, smaller text buffer and canary
* SubGhz: log key loading before load happen, rollback only rx message handling

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2022-04-07 14:47:47 +03:00
Arman Yeghiazaryan
88cb90783d
Corrected variables name's typos #1082
Co-authored-by: SG <who.just.the.doctor@gmail.com>
2022-04-03 21:06:20 +03:00
Skorpionm
cb7d43f7e1
[FL-2410] SubGhz: fix launching an incorrect Sub-GHz key from the archive. (#1080) 2022-04-01 14:10:21 +03:00
Nikolay Minaylov
2f3ea9494e
HAL to LL migration: GPIO, HSEM, AES (#1069)
* gpio, hsem, crypto: switch from HAL to LL/registers
* Moved GPIO initialization to furi_hal
* More HAL removed
* All HAL modules disabled
* HAL is finally removed
* hal_gpio -> furi_hal_gpio, main.h removed
* Bootloader build fix
* RTOS config moved to freertos-glue
* delay -> furi_hal_delay

Co-authored-by: あく <alleteam@gmail.com>
2022-03-30 18:23:40 +03:00
Skorpionm
b86a400a82
SubGhz: add frequencies and add DoorHan 315.00 (#1028)
* SubGhz: add frequencies and add DoorHan 315.00
* SubGhz: fix syntax

Co-authored-by: あく <alleteam@gmail.com>
2022-03-17 16:55:53 +07:00
Skorpionm
94ba7d104c
SubGhz: refactoring add descriptions (#1012)
* SubGhz: add descriptions
* SubGhz: fix syntax

Co-authored-by: あく <alleteam@gmail.com>
2022-03-16 16:18:48 +07:00
Skorpionm
3164184bbc
[FL-2230] SubGhz: protocol API refactoring (#969)
* SubGhz: protocols library refactoring
* SubGhz: new architecture and refactoring
* SubGhz: simplify protocol structure, remove unused types
* SubGhz: rename Subghz to SubGhz
* SubGhz: add environment concept

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
2022-03-03 12:48:56 +03:00
Skorpionm
3922ae93b7
[FL-2258] SubGhz: removal of frequencies #1001
Co-authored-by: あく <alleteam@gmail.com>
2022-02-18 23:04:39 +03:00
SG
274c12fc56
[FL-2274] Inventing streams and moving FFF to them (#981)
* Streams: string stream
* String stream: updated insert/delete api
* Streams: generic stream interface and string stream implementation
* Streams: helpers for insert and delete_and_insert
* FFF: now compatible with streams
* MinUnit: introduced tests with arguments
* FFF: stream access violation
* Streams: copy data between streams
* Streams: file stream
* FFF: documentation
* FFStream: documentation
* FFF: alloc as file
* MinUnit: support for nested tests
* Streams: changed delete_and_insert, now it returns success flag. Added ability dump stream inner parameters and data to cout.
* FFF: simplified file open function
* Streams: unit tests
* FFF: tests
* Streams: declare cache_size constant as define, to allow variable modified arrays
* FFF: lib moved to a separate folder
* iButton: new FFF
* RFID: new FFF
* Animations: new FFF
* IR: new FFF
* NFC: new FFF
* Flipper file format: delete lib
* U2F: new FFF
* Subghz: new FFF and streams
* Streams: read line
* Streams: split
* FuriCore: implement memset with extra asserts
* FuriCore: implement extra heap asserts without inventing memset
* Scene manager: protected access to the scene id stack with a size check
* NFC worker: dirty fix for issue where hal_nfc was busy on app start
* Furi: update allocator to erase memory on allocation. Replace furi_alloc with malloc.
* FuriCore: cleanup memmgr code.
* Furi HAL: furi_hal_init is split into critical and non-critical parts. The critical part is currently clock and console.
* Memmgr: added ability to track allocations and deallocations through console.
* FFStream: some speedup
* Streams, FF: minor fixes
* Tests: restore
* File stream: a slightly more thread-safe version of file_stream_delete_and_insert

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2022-02-18 22:53:46 +03:00
Skorpionm
b71f3c6323
[FL-2168] SubGhz: fix auto highlight name when saving RAW (#984) 2022-02-08 21:41:10 +03:00
gornekich
8cfd0eab9e
[FL-2198], [FL-2161] NFC emulation refactoring (#968)
* rfal: add state changed callback
* furi_hal_nfc: add NFC-A emulation API
* nfc: add emulation logger, refactor scenes
* elements: fix text_box element
* gui: fix text box module
* nfc: remove unnecessary buffers
* nfc: introduce emulation callback concept
* nfc: format sources
* bt settings: fix incorrect scene switch
* bt settings: format sources
* Debug: fix x2d import for python 3
* Gui: rename method name widget_clear to widget_reset
* nfc: add nfca emulation handler
* nfc: add global custom events enum
* nfc: UID emulation Data -> Log
* furi_hal_nfc: fix incorrect timings
* u2f, badusb: widget_clear() -> widget_reset()

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2022-02-02 22:59:28 +03:00
gornekich
838df4c9ea
[FL-2229] New assets paths (#978)
* assets: change resources paths
* apps: rework nfc, irda and subghz with new assets path
* subghz: remove unused paths
* subghz: fix incorrect path
* badusb and u2f fix

Co-authored-by: あく <alleteam@gmail.com>
Co-authored-by: nminaylov <nm29719@gmail.com>
2022-02-02 18:58:52 +03:00
Albert Kharisov
84410c83b5
[FL-2183] [FL-2209] Dolphin Deeds, Level up, assets generation, refactoring (#965)
* Desktop: cleanup headers
* Get loader pubsub via record
* [FL-2183] Dolphin refactoring 2022.01
* Restruct animations assets structure
* Rename assets
* Cleanup headers
* Update Recording animation
* Add BadBattery animation
* Provide loader's pubsub via record
* Fix load/unload animations
* Scripts: add flipper format support, initial dolphin packager rework. Assets: internal and external dolphin.
* Sync internal meta.txt and manifest.txt
* Reorder, rename dolphin assets
* Split essential generated assets
* Add ReadMe for dolphin assets
* Separate essential blocking animations
* Scripts: full dolphin validation before packaging
* Assets, Scripts: dolphin external resources packer
* Github: update codeowners
* Scripts: proper slots handling in dolphin animation meta
* Scripts: correct frames enumeration and fix compiled assets.
* [FL-2209] Add Dolphin Deeds points and many more
* Remove excess frame_rate
* Change dolphin assets directory
* Scripts: add internal resource support to dolphin compiler
* Scripts: add internal assets generation, renaming
* Scripts: correct assert, renaming
* Code cleanup, documentation, fixes
* Update Levelup animations
* Rename essential -> blocking
* Fix Unlocked hint
* Scripts: rewrite Templite compiller, replace regexps with token parser, split block types into code and variable blocks. Update dolphin templates.
* Documentation: add key combos description and use information
* Scripts: cleanup templit, more debug info and add dev comment

Co-authored-by: あく <alleteam@gmail.com>
2022-01-29 12:20:41 +03:00
Skorpionm
53e7415d12
[FL-2215, FL-2168] Display long names and rename RAW files (#971)
* [FL-2215] SubGhz:  fix long names on RAW and Delete screens
* [FL-2168] SubGhz: fix rename RAW
2022-01-27 19:38:47 +03:00
Skorpionm
cb0369a7f3
SubGhz: add protocol Somfy Telis RTS, Somfy Keytis RTS (#964)
* SubGhz: add 433.42 MHz  for Somfy
* SupGhz: add protocol Somfy Telis RTS, Somfy Keytis RTS

Co-authored-by: あく <alleteam@gmail.com>
2022-01-27 15:28:21 +03:00
gornekich
23ff6723cf
[FL-2204] Bluetooth forget devices (#967)
* bt: update connection parameters
* bt: set correct connection latency and timeout
* gui popup: add clean method
* furi_hal_bt: add connection parameters request, clear database
* bt: add forget bonded devices API
* bt_settings: add forget bonded devices GUI
* bt: rework pin code show with view port to hide view
* bt: support conn parameters for different profiles
* furi_hal_bt: sync f6 target
* target f6: fix build
* bt: format sources
* furi_hal_bt: update connection parameters
* bt: update connection params, fix GUI
* FuriHal: fix spelling
* Refactoring: rename _clean to _reset

Co-authored-by: あく <alleteam@gmail.com>
2022-01-21 20:32:03 +03:00
Skorpionm
d4d87aa6a8
[FL-2045] SubGhz: new protocol (GSN , Beninca/Allmatic, Elmes) and validator (#958)
* SubGhz: add new method of obtaining a manufactory code subghz_protocol_keeloq_common_magic_xor_type1_learning
* TextInput: checking for a lock on a file with the same name
* TextInput:  fix checking for a lock on a file with the same name
* Assets: rename and recompile
* TextInput: added picture and timer to turn off blob
* TextInput: Fix graphics
* TextInput:  fix validator
* Validators: Add validator is file
* TextInput: fix callback validator_is_file_alloc
* SubGhz: add propocol GNS (dimamic), Beninca/Alcatic,  Elmes
* SubGhz: fix function description
* Gui: correct timer routine on deallocation
* Format sources

Co-authored-by: あく <alleteam@gmail.com>
2022-01-21 16:55:09 +03:00
あく
389ff92cc1
Naming and coding style convention, new linter tool. (#945)
* Makefile, Scripts: new linter
* About: remove ID from IC
* Firmware: remove double define for DIVC/DIVR
* Scripts: check folder names too. Docker: replace syntax check with make lint.
* Reformat Sources and Migrate to new file naming convention
* Docker: symlink clang-format-12 to clang-format
* Add coding style guide
2022-01-05 19:10:18 +03:00
あく
5252b207c8
SubGhz: replace incorrect frequency value (#933) 2021-12-26 18:31:48 +03:00
Skorpionm
fb7cc1dd60
[FL-2162] SubGhz: Cli refactoring (#926)
* [FL-2162] SubGhz: Cli refactoring
* SubGhz: power reduction for Australia
* SubGhz: add frequencies for testing the Japanese region
* Desktop: fix fav app

Co-authored-by: Anna Prosvetova <anna@prosvetova.me>
Co-authored-by: あく <alleteam@gmail.com>
2021-12-25 16:19:30 +03:00
Anna Prosvetova
46a25c295c
Decouple apps to allow smaller builds. Loader deadlock fix and refactoring. (#929)
* Lib: always include rfal
* Gui: remove screen_stream
* Input: decouple from Cli
* Loader: decouple from Cli
* Desktop: ignore missing favorite app, decouple from Archive
* Make: make Notification a Gui dependency
* Make: embed debugging information into elfs
* Loader: hide Plugins submenu when plugins ga arimasen
* Applications: update on start hook usage
* Loader: fix dead lock on menu rebuild with open rpc, new cli command.

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-12-24 21:47:48 +03:00
Nikolay Minaylov
9e62f08e4d
[FL-1958] U2F prototype (#879)
* U2F implementation prototype
* U2F data encryption and store, user confirmation request
* remove debug prints
* fix notification bug in chrome
* split u2f_alloc into u2f_init and u2f_alloc
* typo fix, furi-hal-trng -> furi-hal-random
* rand/srand redefinition
* SubGhz: a little bit of Dante.
* u2f_data naming fix

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-12-22 23:04:08 +03:00
Skorpionm
9b62b557b4
SubGhz: fix transmission frequency (#922) 2021-12-22 22:35:53 +03:00
Skorpionm
3a86da5526
[FL-2139] SubGhz: refactoring GUI SubGhz (#910)
* SubGhz: refactoring GUI ReadRAW
* SubGhz: replacing memcpy with strcpy
* SubGhz: fix button name "Mode",  fix delete scene, fix show name when loading a key
* SubGhz: refactoring GUI SubGhz
* scene_manager: add exit from last scene API
* subghz: stop scene manager before stopping view dispatcher

Co-authored-by: gornekich <n.gorbadey@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>
2021-12-22 16:01:20 +03:00
Skorpionm
51aa169c3b
[FL-2149] SubGhz: Additional frequencies for testing (#920)
* SubGhz: add new frequency for testing
* [FL-2149] SubGhz: power reduction for Australia

Co-authored-by: あく <alleteam@gmail.com>
2021-12-22 14:05:14 +03:00
あく
439fb9c18d
[FL-1910, FL-2146] Update to new FreeRTOS, fix CMSIS thread flags collision with stream buffer. New cube. (#917)
* Libs: add FreeRTOS submodule. FuriHal: replace ST provided FreeRTOS with original one. FuriHal: for cmsis os hal and patch it for better compatibility with stream buffer.
* Makefile: fix svd plugin on blackmagic
* Lib: update STM32CubeWB package. Project: update project to match new cube package.
* Lib: properly rebase and upload STM32CubeWB
* BleGlue: switch ack logging level to trace
2021-12-21 15:16:25 +03:00
あく
6579368053
[FL-1818] System setting and debug options. RTC HAL refactoring. (#902)
* FuriHal: RTC API refactoring. System Setting application. FuriCore: adjustable log levels. Minor code cleanup.
* Storage: change logging levels for internal storage.
* FuriCore: fix broken trace logging level
2021-12-15 01:39:59 +03:00
Skorpionm
1232defcf1
[FL-2129] SubGhz: Fix Duty cycle at 433/868 (#892)
* [FL-2129] SubGhz: Fix Duty cycle at 433/868
* SubGhz: fix syntax
* SubGhz: increased silence time in the 868 range
* SubGhz: added build flag LAB_TESTS
* SubGhz: better LAB_TESTS flag handling
* NFC: LAB_TESTS flag handling

Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
2021-12-13 15:21:37 +03:00
Skorpionm
9f28338d9e
[FL-2100] SubGhz: GUI download and transfer RAW file (#881)
* SubGhz: fix exit subghz_chat
* SubGhz: refactoring GUI RAW

Co-authored-by: あく <alleteam@gmail.com>
2021-12-08 18:00:54 +03:00
Skorpionm
f0aed7e583
SubGhz: add GFSK modulation, refactoring subghz_chat (#866)
* SubGhz: add GFSK modulation, refactoring subghz_chat
* SubGhz: off echo subghz_chat
* SubGhz: subghz_chat add sending and receiving formatted text, translation of the chat to events
* SubGhz: add UTF support in subghz_chat_worker_alloc

Co-authored-by: あく <alleteam@gmail.com>
2021-12-08 16:42:01 +03:00
あく
98bc190ac4
Hackathone session: bugfixes and documentation update (#869)
* ReadMe: update flashing scripts section
* Furi: add record exists method to record store.
* FuriHal: early OS init and i2c timeouts based on os ticks.
* Storage: replace malloc with furi_alloc, fix errors found by pvs.
* iButton: properly handle shutdown in cli search command
* SubGhz: proper argument type in sscanf and incorrect position of logging in switch.
2021-12-05 14:47:02 +03:00
Lesha Lomalkin
4b8653e061
Subghz chat: add vibration on input message, send joined/left events … (#863)
* SubGhz: add vibration on input chat message, send joined/left events to room on start and exit app.
* SubGhz: optimize notification api usage

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-12-04 16:40:17 +03:00
Skorpionm
fbd05598ad
[FL-2086] SubGhz: Fix Errors (#861)
* CLI: fix main GUI freeze while subghz chat is running
* CLI: fix processing backspace in the web console
* [FL-2086] SubGhz: fix can't save signals in sub'e to internal memory
* Cli: remove warning message in i2c command

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-12-02 14:19:47 +03:00
Skorpionm
b912cc7991
SubGhz: sending / receiving messages via subghz (#851)
* SubGhz: add worker subghz_txrx
* SubGhz: added support for transferring Russian characters and support for backspace in CLI subghz_txrx
* SubGhz: refactoring subghz_txrx_worker, added a callback for accepting data in an empty one RX buffer
* SubGhz: fix conflict
* SubGhz: fix syntax errors
* Cli: document string_move usage and its behavior
* FuriHal: update subghz api and documentation. Subghz: move chat to subghz cli subcommand.
* Subghz: update text in chat cli

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-12-01 18:44:39 +03:00
Skorpionm
7c0943e736
SubGhz: fix GUI ReadRAW and add new man (#843)
* Notification: add sequence_single_vibro
* SubGhz: optimizing the performance of the GUI ReadRAW
* SubGhz: full highlighting of the default filename on save
* SubGhz: add man Leopard, Faraon, Reff, ZX-750, Back_SL-B9, fix syntax

Co-authored-by: あく <alleteam@gmail.com>
2021-11-26 17:01:03 +03:00
Albert Kharisov
9b8a139e2b
[FL-1995] New dolphin animations (part 1) (#835)
* Desktop Animation (part 1): Ugly naked ohmygod architecture
* fix butthurt, fix locked scene
* Change SD icons, fixes
* Fix level update animation
* Fixes, correct butthurt
* Clean up code
* furi_assert(0) -> furi_crash("msg")
* Gui: rename none layer to desktop, update docs.

Co-authored-by: あく <alleteam@gmail.com>
2021-11-24 19:21:12 +03:00
Skorpionm
a13f87fedb
[FL-2047] SubGhz: New GUI ReadRAW view (#832)
* SubGhz: GUI RAW Read view
* SubGhz:  GUI Read RAW refactoring
* SubGhz: fix bug wrong frequency of the allowed transmission
* GUI Read RAW refactoring
* SubGhz: fix set the default frequency
* SubGhz: fix save filename when returning from another menu
* SubGhz: fix Send and Back button behavior

Co-authored-by: あく <alleteam@gmail.com>
2021-11-24 16:59:45 +03:00
Oleg Schwann
949079cb74
All strange time constants are now frequency multipliers (#834) 2021-11-22 21:49:57 +03:00
あく
1571d4ec54
Project: enum cast fix. Makefile: blackmagic rule in global makefile (#819) 2021-11-15 22:55:25 +03:00
あく
2e46ec36a7
Lib: update m-lib to latest release. Update m-lib usage across project. (#818) 2021-11-15 20:09:40 +03:00
あく
70d0519178
Subghz: fix crash on arg free (#815) 2021-11-12 18:45:51 +03:00
Anna Prosvetova
558fa5670b
RPC: Add Virtual Display & Unify log tags (#814)
* RPC: Update protobuf sources
* RPC: Add Virtual Display
* Unify log tags
* RPC: Virtual Display placeholder
* Rpc: clear frame buffer callback before confirm.
* Firmware: full assert for hal, move fatfs initialization to furi hal.
* FuriHal: VCP optimizations, thread safe console. Rpc: adjust buffer sizes.

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-11-12 16:04:35 +03:00
Nikolay Minaylov
b564e8eb38
[FL-2010] furi-hal-vcp rework (#812)
* [FL-2010] furi-hal-vcp rework
* Fix connect state change on vcp enable
* New thread naming scheme and stack size adjustment.
* Applications: rename worker threads to match new naming scheme.

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-11-11 19:17:50 +03:00
Skorpionm
ac8b1457f2
[FL-1931, FL-2005] SubGhz: migration in flipper file format (#807)
* SubGhz: add save key in flipper file format
* [FL-2005] SubGhz: fix stored signals cannot be deleted
* SubGhz: add load key in flipper file format
* SubGhz: fix syntax
* SubGhz: fix bad file upload
* Storage: add function to get the next free filename
* SubGhz: add save RAW  in flipper file format
* SubGhz: add load RAW in flipper file format
* SubGhz: refactoring protocol
* SubGhz: refactoring scene
* SubGhz: fix SubGhzNotificationState define
* Makefile: proper comapre for FORCE

Co-authored-by: あく <alleteam@gmail.com>
2021-11-11 15:49:19 +03:00
Skorpionm
6d548637f2
SubGhz: reading keys from encrypted files (#803)
* SubGhz: add file with manufactory codes, and the ability to add your own manufactory codes for KeeLog
* SubGhz: add encrypt RAW data, add decrypt and get RAW data
* SubGhz: add encrypt  magic_xor_atomo
* SubGhz: parsing atomo using file encrypt
* SubGhz: fix calculating the size of the read buffer
* SubGhz: parsing Nice FLOR S using file encrypt
* SubGhz: add file encrypt nice_flor_s_tx, fix name load file
* SubGhz: fix checking read buffer size
* Update subghz_keystore.c
* SubGhz: fix calculating the size of the read buffer

Co-authored-by: あく <alleteam@gmail.com>
2021-11-03 19:41:07 +03:00
Anna Prosvetova
e9e76e144c
RPC: Implement storage_stat_request (#800)
* RPC: Update protobuf sources
* RPC: Implement storage_stat_request
* RPC: Test storage_stat_request
* FuriRecord: fix use after free in destroy method.
* Furi: refactor PubSub and it's usage. Fix allocation in RPC.
* FuriCore: fix memory leak in pubsub
* FuriCore: update unsubscribe method signature in pubsub, make subscription structure lighter.
* FuriCore: remove dead code

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-11-01 23:35:54 +03:00
あく
22a4bac448
[FL-1934] Core: wipe memory after free. SubGhz: key encryption tool. (#797)
* Core: wipe memory after free. RFID,iButton: fix iterator use after invalidation.

* Debug: support unix wildcards for register matching in svd, update MCU description file and minify it.

* Toolbox: getter for File in FlipperFile.

* Makefile: conditional flashing

* SubGhz: keeloq_mfcodes encryption tool.

* FuriHal: proper IV handling on CBC in crypto. SubGhz: add support for encrypted keeloq keys. Makefile: move formatting to top Makefile.

* SubGhz: rename some function names to match naming scheme.

* SubGhz: encryption tool, fix windows line endings

Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
2021-11-01 16:11:25 +03:00
Skorpionm
26c53f3dfd
SubGhz: Refactoring Read RAW (#791)
* SubGhz: rename save_raw -> read_raw
* SubGhz: add manually saving files to read_raw, confirming that saving is unnecessary, refactoring
* Format sources
* SubGhz: fix runglish

Co-authored-by: あく <alleteam@gmail.com>
2021-10-27 20:37:11 +03:00
Skorpionm
9d952ed855
[FL-1913, FL-1963] SubGhz: save raw signal, add came atomo decoder (#783)
* File_Worker: getting the name of a new file with an index
* SubGhz: add decoder RAW protocol
* SubGhz: add view Save RAW
* SubGhz: refactoring subghz custom event
* SubGhz: fix syntax
* SubGhz: fix error build
* SubGhz: test build
* SubGhz: refactoring subghz, add rename, delete, start and emulate RAW signal
* SubGhz: fix triangle glitch in save raw view
* SubGhz: fix receiver config scene
* SubGhz: fix transfer after returning from save scene
* Canvas: add font rotation
* SubGhz: raw protocol encoder
* SubGhz: fix error completion of transfer raw encoder
* SubGhz: increased the speed of reading RAW data from a flash drive, displaying the name of the saved file in the Save RAW scene
* Canvas: fix font rotation
* SubGhz: fix navigation save RAW  scene
* SubGhz: add decode came atomo
* Git: renormalize
* Cleanup sources and enums
* Gui: add font direction to canvas reset, canvas init sequence cleanup.
* SubGhz: reorder menu.
* Gui: correct canvas_set_font_direction signature

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-10-25 17:37:14 +03:00
Skorpionm
63428609b7
SubGhz: fix frequency determination in a frequency analyzer (#762) 2021-10-13 22:35:33 +03:00