[FL-2393][FL-2381] iButton, OneWire: move to plain C (#1068)
* iButton: getting started on the worker concept * Hal delay: added global instructions_per_us variable * iButton: one wire slave * iButton: ibutton key setter * iButton: one wire host, use ibutton_hal * iButton\RFID: common pulse decoder concept * iButton: cyfral decoder * iButton: worker thread concept * iButton: metakom decoder * iButton: write key through worker * iButton: worker mode holder * iButton: worker improvements * iButton: Cyfral encoder * iButton: Metakom encoder * lib: pulse protocol helpers * iButton: Metakom decoder * iButton: Cyfral decoder * iButton worker: separate modes * iButton: libs documentation * HAL: iButton gpio modes * iButton worker: rename modes file * iButton worker, hal: move to LL * iButton CLI: worker for reading and emulation commands * iButton HAL: correct init and emulation sequence * iButton cli: moved to plain C * iButton: move to worker, small step to plain C * Libs, one wire: move to plain C * Libs: added forgotten files to compilation * iButton writer: get rid of manual disable/enable irq
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330
lib/one_wire/ibutton/ibutton_worker_modes.c
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330
lib/one_wire/ibutton/ibutton_worker_modes.c
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#include <furi.h>
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#include <furi_hal.h>
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#include "ibutton_worker_i.h"
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#include "ibutton_key_command.h"
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void ibutton_worker_mode_idle_start(iButtonWorker* worker);
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void ibutton_worker_mode_idle_tick(iButtonWorker* worker);
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void ibutton_worker_mode_idle_stop(iButtonWorker* worker);
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void ibutton_worker_mode_emulate_start(iButtonWorker* worker);
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void ibutton_worker_mode_emulate_tick(iButtonWorker* worker);
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void ibutton_worker_mode_emulate_stop(iButtonWorker* worker);
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void ibutton_worker_mode_read_start(iButtonWorker* worker);
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void ibutton_worker_mode_read_tick(iButtonWorker* worker);
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void ibutton_worker_mode_read_stop(iButtonWorker* worker);
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void ibutton_worker_mode_write_start(iButtonWorker* worker);
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void ibutton_worker_mode_write_tick(iButtonWorker* worker);
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void ibutton_worker_mode_write_stop(iButtonWorker* worker);
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const iButtonWorkerModeType ibutton_worker_modes[] = {
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{
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.quant = osWaitForever,
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.start = ibutton_worker_mode_idle_start,
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.tick = ibutton_worker_mode_idle_tick,
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.stop = ibutton_worker_mode_idle_stop,
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},
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{
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.quant = 100,
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.start = ibutton_worker_mode_read_start,
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.tick = ibutton_worker_mode_read_tick,
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.stop = ibutton_worker_mode_read_stop,
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},
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{
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.quant = 1000,
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.start = ibutton_worker_mode_write_start,
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.tick = ibutton_worker_mode_write_tick,
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.stop = ibutton_worker_mode_write_stop,
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},
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{
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.quant = 1000,
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.start = ibutton_worker_mode_emulate_start,
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.tick = ibutton_worker_mode_emulate_tick,
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.stop = ibutton_worker_mode_emulate_stop,
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},
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};
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/*********************** IDLE ***********************/
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void ibutton_worker_mode_idle_start(iButtonWorker* worker) {
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}
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void ibutton_worker_mode_idle_tick(iButtonWorker* worker) {
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}
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void ibutton_worker_mode_idle_stop(iButtonWorker* worker) {
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}
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/*********************** READ ***********************/
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void ibutton_worker_comparator_callback(bool level, void* context) {
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iButtonWorker* worker = context;
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uint32_t current_dwt_value = DWT->CYCCNT;
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pulse_decoder_process_pulse(
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worker->pulse_decoder, level, current_dwt_value - worker->last_dwt_value);
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worker->last_dwt_value = current_dwt_value;
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}
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bool ibutton_worker_read_comparator(iButtonWorker* worker) {
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bool result = false;
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pulse_decoder_reset(worker->pulse_decoder);
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furi_hal_rfid_pins_reset();
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// pulldown pull pin, we sense the signal through the analog part of the RFID schematic
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furi_hal_rfid_pin_pull_pulldown();
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furi_hal_rfid_comp_set_callback(ibutton_worker_comparator_callback, worker);
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worker->last_dwt_value = DWT->CYCCNT;
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furi_hal_rfid_comp_start();
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// TODO: rework with thread events, "pulse_decoder_get_decoded_index_with_timeout"
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delay(100);
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int32_t decoded_index = pulse_decoder_get_decoded_index(worker->pulse_decoder);
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if(decoded_index >= 0) {
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pulse_decoder_get_data(
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worker->pulse_decoder, decoded_index, worker->key_data, ibutton_key_get_max_size());
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}
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switch(decoded_index) {
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case PulseProtocolCyfral:
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furi_check(worker->key_p != NULL);
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ibutton_key_set_type(worker->key_p, iButtonKeyCyfral);
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ibutton_key_set_data(worker->key_p, worker->key_data, ibutton_key_get_max_size());
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result = true;
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break;
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case PulseProtocolMetakom:
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furi_check(worker->key_p != NULL);
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ibutton_key_set_type(worker->key_p, iButtonKeyMetakom);
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ibutton_key_set_data(worker->key_p, worker->key_data, ibutton_key_get_max_size());
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result = true;
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break;
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break;
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default:
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break;
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}
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furi_hal_rfid_comp_stop();
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furi_hal_rfid_comp_set_callback(NULL, NULL);
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furi_hal_rfid_pins_reset();
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return result;
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}
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bool ibutton_worker_read_dallas(iButtonWorker* worker) {
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bool result = false;
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onewire_host_start(worker->host);
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delay(100);
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FURI_CRITICAL_ENTER();
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if(onewire_host_search(worker->host, worker->key_data, NORMAL_SEARCH)) {
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onewire_host_reset_search(worker->host);
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// key found, verify
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if(onewire_host_reset(worker->host)) {
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onewire_host_write(worker->host, DS1990_CMD_READ_ROM);
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bool key_valid = true;
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for(uint8_t i = 0; i < ibutton_key_get_max_size(); i++) {
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if(onewire_host_read(worker->host) != worker->key_data[i]) {
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key_valid = false;
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break;
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}
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}
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if(key_valid) {
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result = true;
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furi_check(worker->key_p != NULL);
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ibutton_key_set_type(worker->key_p, iButtonKeyDS1990);
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ibutton_key_set_data(worker->key_p, worker->key_data, ibutton_key_get_max_size());
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}
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}
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} else {
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onewire_host_reset_search(worker->host);
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}
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onewire_host_stop(worker->host);
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FURI_CRITICAL_EXIT();
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return result;
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}
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void ibutton_worker_mode_read_start(iButtonWorker* worker) {
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furi_hal_power_enable_otg();
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}
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void ibutton_worker_mode_read_tick(iButtonWorker* worker) {
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bool valid = false;
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if(ibutton_worker_read_dallas(worker)) {
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valid = true;
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} else if(ibutton_worker_read_comparator(worker)) {
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valid = true;
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}
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if(valid) {
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if(worker->read_cb != NULL) {
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worker->read_cb(worker->cb_ctx);
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}
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ibutton_worker_switch_mode(worker, iButtonWorkerIdle);
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}
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}
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void ibutton_worker_mode_read_stop(iButtonWorker* worker) {
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furi_hal_power_disable_otg();
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}
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/*********************** EMULATE ***********************/
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static void onewire_slave_callback(void* context) {
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furi_assert(context);
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iButtonWorker* worker = context;
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if(worker->emulate_cb != NULL) {
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worker->emulate_cb(worker->cb_ctx, true);
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}
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}
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void ibutton_worker_emulate_dallas_start(iButtonWorker* worker) {
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uint8_t* device_id = onewire_device_get_id_p(worker->device);
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const uint8_t* key_id = ibutton_key_get_data_p(worker->key_p);
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const uint8_t key_size = ibutton_key_get_max_size();
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memcpy(device_id, key_id, key_size);
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onewire_slave_attach(worker->slave, worker->device);
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onewire_slave_start(worker->slave);
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onewire_slave_set_result_callback(worker->slave, onewire_slave_callback, worker);
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}
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void ibutton_worker_emulate_dallas_stop(iButtonWorker* worker) {
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onewire_slave_stop(worker->slave);
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onewire_slave_detach(worker->slave);
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}
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void ibutton_worker_emulate_timer_cb(void* context) {
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furi_assert(context);
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iButtonWorker* worker = context;
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bool polarity;
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uint32_t length;
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switch(worker->emulate_mode) {
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case iButtonEmulateModeCyfral:
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encoder_cyfral_get_pulse(worker->encoder_cyfral, &polarity, &length);
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break;
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case iButtonEmulateModeMetakom:
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encoder_metakom_get_pulse(worker->encoder_metakom, &polarity, &length);
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break;
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}
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furi_hal_ibutton_emulate_set_next(length);
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if(polarity) {
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furi_hal_ibutton_pin_high();
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} else {
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furi_hal_ibutton_pin_low();
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}
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}
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void ibutton_worker_emulate_timer_start(iButtonWorker* worker) {
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furi_assert(worker->key_p);
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const uint8_t* key_id = ibutton_key_get_data_p(worker->key_p);
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const uint8_t key_size = ibutton_key_get_max_size();
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switch(ibutton_key_get_type(worker->key_p)) {
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case iButtonKeyDS1990:
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return;
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break;
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case iButtonKeyCyfral:
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worker->emulate_mode = iButtonEmulateModeCyfral;
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encoder_cyfral_reset(worker->encoder_cyfral);
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encoder_cyfral_set_data(worker->encoder_cyfral, key_id, key_size);
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break;
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case iButtonKeyMetakom:
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worker->emulate_mode = iButtonEmulateModeMetakom;
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encoder_metakom_reset(worker->encoder_metakom);
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encoder_metakom_set_data(worker->encoder_metakom, key_id, key_size);
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break;
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}
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furi_hal_ibutton_start_drive();
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furi_hal_ibutton_emulate_start(0, ibutton_worker_emulate_timer_cb, worker);
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}
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void ibutton_worker_emulate_timer_stop(iButtonWorker* worker) {
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furi_hal_ibutton_emulate_stop();
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}
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void ibutton_worker_mode_emulate_start(iButtonWorker* worker) {
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furi_assert(worker->key_p);
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furi_hal_rfid_pins_reset();
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furi_hal_rfid_pin_pull_pulldown();
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switch(ibutton_key_get_type(worker->key_p)) {
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case iButtonKeyDS1990:
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ibutton_worker_emulate_dallas_start(worker);
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break;
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case iButtonKeyCyfral:
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case iButtonKeyMetakom:
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ibutton_worker_emulate_timer_start(worker);
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break;
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}
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}
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void ibutton_worker_mode_emulate_tick(iButtonWorker* worker) {
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}
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void ibutton_worker_mode_emulate_stop(iButtonWorker* worker) {
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furi_assert(worker->key_p);
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furi_hal_rfid_pins_reset();
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switch(ibutton_key_get_type(worker->key_p)) {
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case iButtonKeyDS1990:
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ibutton_worker_emulate_dallas_stop(worker);
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break;
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case iButtonKeyCyfral:
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case iButtonKeyMetakom:
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ibutton_worker_emulate_timer_stop(worker);
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break;
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}
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}
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/*********************** WRITE ***********************/
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void ibutton_worker_mode_write_start(iButtonWorker* worker) {
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furi_hal_power_enable_otg();
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onewire_host_start(worker->host);
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}
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void ibutton_worker_mode_write_tick(iButtonWorker* worker) {
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furi_check(worker->key_p != NULL);
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iButtonWriterResult writer_result = ibutton_writer_write(worker->writer, worker->key_p);
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iButtonWorkerWriteResult result;
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switch(writer_result) {
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case iButtonWriterOK:
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result = iButtonWorkerWriteOK;
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break;
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case iButtonWriterSameKey:
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result = iButtonWorkerWriteSameKey;
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break;
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case iButtonWriterNoDetect:
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result = iButtonWorkerWriteNoDetect;
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break;
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case iButtonWriterCannotWrite:
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result = iButtonWorkerWriteCannotWrite;
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break;
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default:
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result = iButtonWorkerWriteNoDetect;
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break;
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}
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if(worker->write_cb != NULL) {
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worker->write_cb(worker->cb_ctx, result);
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}
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}
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void ibutton_worker_mode_write_stop(iButtonWorker* worker) {
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furi_hal_power_disable_otg();
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onewire_host_stop(worker->host);
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}
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