mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-21 02:03:18 +00:00
828 lines
29 KiB
C
828 lines
29 KiB
C
#include <furi_hal_subghz.h>
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#include <lib/subghz/devices/cc1101_configs.h>
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#include <furi_hal_version.h>
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#include <furi_hal_rtc.h>
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#include <furi_hal_spi.h>
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#include <furi_hal_interrupt.h>
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#include <furi_hal_resources.h>
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#include <furi_hal_bus.h>
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#include <stm32wbxx_ll_dma.h>
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#include <furi.h>
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#include <cc1101.h>
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#include <stdio.h>
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#define TAG "FuriHalSubGhz"
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static uint32_t furi_hal_subghz_debug_gpio_buff[2];
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/* DMA Channels definition */
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#define SUBGHZ_DMA DMA2
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#define SUBGHZ_DMA_CH1_CHANNEL LL_DMA_CHANNEL_1
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#define SUBGHZ_DMA_CH2_CHANNEL LL_DMA_CHANNEL_2
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#define SUBGHZ_DMA_CH1_IRQ FuriHalInterruptIdDma2Ch1
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#define SUBGHZ_DMA_CH1_DEF SUBGHZ_DMA, SUBGHZ_DMA_CH1_CHANNEL
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#define SUBGHZ_DMA_CH2_DEF SUBGHZ_DMA, SUBGHZ_DMA_CH2_CHANNEL
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/** SubGhz state */
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typedef enum {
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SubGhzStateInit, /**< Init pending */
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SubGhzStateIdle, /**< Idle, energy save mode */
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SubGhzStateAsyncRx, /**< Async RX started */
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SubGhzStateAsyncTx, /**< Async TX started, DMA and timer is on */
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SubGhzStateAsyncTxLast, /**< Async TX continue, DMA completed and timer got last value to go */
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SubGhzStateAsyncTxEnd, /**< Async TX complete, cleanup needed */
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} SubGhzState;
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/** SubGhz regulation, receive transmission on the current frequency for the
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* region */
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typedef enum {
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SubGhzRegulationOnlyRx, /**only Rx*/
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SubGhzRegulationTxRx, /**TxRx*/
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} SubGhzRegulation;
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typedef struct {
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volatile SubGhzState state;
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volatile SubGhzRegulation regulation;
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const GpioPin* async_mirror_pin;
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uint8_t rolling_counter_mult;
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bool ext_power_amp : 1;
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bool dangerous_frequency_i : 1;
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} FuriHalSubGhz;
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volatile FuriHalSubGhz furi_hal_subghz = {
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.state = SubGhzStateInit,
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.regulation = SubGhzRegulationTxRx,
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.async_mirror_pin = NULL,
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.rolling_counter_mult = 1,
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.ext_power_amp = false,
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.dangerous_frequency_i = false,
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};
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uint8_t furi_hal_subghz_get_rolling_counter_mult(void) {
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return furi_hal_subghz.rolling_counter_mult;
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}
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void furi_hal_subghz_set_rolling_counter_mult(uint8_t mult) {
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furi_hal_subghz.rolling_counter_mult = mult;
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}
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void furi_hal_subghz_set_dangerous_frequency(bool state_i) {
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furi_hal_subghz.dangerous_frequency_i = state_i;
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}
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void furi_hal_subghz_set_ext_power_amp(bool enabled) {
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furi_hal_subghz.ext_power_amp = enabled;
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}
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bool furi_hal_subghz_get_ext_power_amp() {
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return furi_hal_subghz.ext_power_amp;
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}
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void furi_hal_subghz_set_async_mirror_pin(const GpioPin* pin) {
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furi_hal_subghz.async_mirror_pin = pin;
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}
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const GpioPin* furi_hal_subghz_get_data_gpio() {
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return &gpio_cc1101_g0;
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}
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void furi_hal_subghz_init() {
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furi_assert(furi_hal_subghz.state == SubGhzStateInit);
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furi_hal_subghz.state = SubGhzStateIdle;
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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#ifdef FURI_HAL_SUBGHZ_TX_GPIO
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furi_hal_gpio_init(&FURI_HAL_SUBGHZ_TX_GPIO, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
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#endif
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// Reset
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furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
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cc1101_reset(&furi_hal_spi_bus_handle_subghz);
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHighImpedance);
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// Prepare GD0 for power on self test
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furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
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// GD0 low
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHW);
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while(furi_hal_gpio_read(&gpio_cc1101_g0) != false)
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;
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// GD0 high
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cc1101_write_reg(
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&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHW | CC1101_IOCFG_INV);
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while(furi_hal_gpio_read(&gpio_cc1101_g0) != true)
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;
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// Reset GD0 to floating state
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHighImpedance);
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furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
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// RF switches
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furi_hal_gpio_init(&gpio_rf_sw_0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW);
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// Go to sleep
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cc1101_shutdown(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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FURI_LOG_I(TAG, "Init OK");
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}
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void furi_hal_subghz_sleep() {
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furi_assert(furi_hal_subghz.state == SubGhzStateIdle);
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_switch_to_idle(&furi_hal_spi_bus_handle_subghz);
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHighImpedance);
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furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
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cc1101_shutdown(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_dump_state() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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printf(
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"[furi_hal_subghz] cc1101 chip %d, version %d\r\n",
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cc1101_get_partnumber(&furi_hal_spi_bus_handle_subghz),
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cc1101_get_version(&furi_hal_spi_bus_handle_subghz));
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_load_custom_preset(const uint8_t* preset_data) {
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//load config
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_reset(&furi_hal_spi_bus_handle_subghz);
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uint32_t i = 0;
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uint8_t pa[8] = {0};
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while(preset_data[i]) {
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, preset_data[i], preset_data[i + 1]);
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i += 2;
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}
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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//load pa table
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memcpy(&pa[0], &preset_data[i + 2], 8);
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furi_hal_subghz_load_patable(pa);
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//show debug
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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i = 0;
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FURI_LOG_D(TAG, "Loading custom preset");
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while(preset_data[i]) {
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FURI_LOG_D(TAG, "Reg[%lu]: %02X=%02X", i, preset_data[i], preset_data[i + 1]);
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i += 2;
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}
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for(uint8_t y = i; y < i + 10; y++) {
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FURI_LOG_D(TAG, "PA[%u]: %02X", y, preset_data[y]);
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}
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}
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}
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void furi_hal_subghz_load_registers(const uint8_t* data) {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_reset(&furi_hal_spi_bus_handle_subghz);
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uint32_t i = 0;
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while(data[i]) {
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, data[i], data[i + 1]);
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i += 2;
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}
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_load_patable(const uint8_t data[8]) {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_set_pa_table(&furi_hal_spi_bus_handle_subghz, data);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_write_packet(const uint8_t* data, uint8_t size) {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_flush_tx(&furi_hal_spi_bus_handle_subghz);
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_FIFO, size);
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cc1101_write_fifo(&furi_hal_spi_bus_handle_subghz, data, size);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_flush_rx() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_flush_rx(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_flush_tx() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_flush_tx(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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bool furi_hal_subghz_rx_pipe_not_empty() {
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CC1101RxBytes status[1];
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_read_reg(
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&furi_hal_spi_bus_handle_subghz, (CC1101_STATUS_RXBYTES) | CC1101_BURST, (uint8_t*)status);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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// TODO: Find reason why RXFIFO_OVERFLOW doesnt work correctly
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if(status->NUM_RXBYTES > 0) {
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return true;
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} else {
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return false;
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}
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}
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bool furi_hal_subghz_is_rx_data_crc_valid() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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uint8_t data[1];
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cc1101_read_reg(&furi_hal_spi_bus_handle_subghz, CC1101_STATUS_LQI | CC1101_BURST, data);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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if(((data[0] >> 7) & 0x01)) {
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return true;
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} else {
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return false;
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}
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}
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void furi_hal_subghz_read_packet(uint8_t* data, uint8_t* size) {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_read_fifo(&furi_hal_spi_bus_handle_subghz, data, size);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_shutdown() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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// Reset and shutdown
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cc1101_shutdown(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_reset() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
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cc1101_switch_to_idle(&furi_hal_spi_bus_handle_subghz);
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cc1101_reset(&furi_hal_spi_bus_handle_subghz);
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cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHighImpedance);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_idle() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_switch_to_idle(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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void furi_hal_subghz_rx() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_switch_to_rx(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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}
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bool furi_hal_subghz_tx() {
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if(furi_hal_subghz.regulation != SubGhzRegulationTxRx) return false;
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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cc1101_switch_to_tx(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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return true;
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}
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float furi_hal_subghz_get_rssi() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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int32_t rssi_dec = cc1101_get_rssi(&furi_hal_spi_bus_handle_subghz);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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float rssi = rssi_dec;
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if(rssi_dec >= 128) {
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rssi = ((rssi - 256.0f) / 2.0f) - 74.0f;
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} else {
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rssi = (rssi / 2.0f) - 74.0f;
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}
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return rssi;
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}
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uint8_t furi_hal_subghz_get_lqi() {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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uint8_t data[1];
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cc1101_read_reg(&furi_hal_spi_bus_handle_subghz, CC1101_STATUS_LQI | CC1101_BURST, data);
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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return data[0] & 0x7F;
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}
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/*
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Modified by @tkerby & MX to the full YARD Stick One extended range of 281-361 MHz, 378-481 MHz, and 749-962 MHz.
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These changes are at your own risk. The PLL may not lock and FZ devs have warned of possible damage!
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*/
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bool furi_hal_subghz_is_frequency_valid(uint32_t value) {
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if(!(value >= 281000000 && value <= 361000000) &&
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!(value >= 378000000 && value <= 481000000) &&
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!(value >= 749000000 && value <= 962000000)) {
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return false;
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}
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return true;
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}
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uint32_t furi_hal_subghz_set_frequency_and_path(uint32_t value) {
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// Set these values to the extended frequency range only. They dont define if you can transmit but do select the correct RF path
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value = furi_hal_subghz_set_frequency(value);
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if(value >= 281000000 && value <= 361000000) {
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furi_hal_subghz_set_path(FuriHalSubGhzPath315);
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} else if(value >= 378000000 && value <= 481000000) {
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furi_hal_subghz_set_path(FuriHalSubGhzPath433);
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} else if(value >= 749000000 && value <= 962000000) {
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furi_hal_subghz_set_path(FuriHalSubGhzPath868);
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} else {
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furi_crash("SubGhz: Incorrect frequency during set.");
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}
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return value;
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}
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bool furi_hal_subghz_is_tx_allowed(uint32_t value) {
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bool allow_extended_for_int = furi_hal_subghz.dangerous_frequency_i;
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if(!(allow_extended_for_int) &&
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!(value >= 299999755 && value <= 350000335) && // was increased from 348 to 350
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!(value >= 386999938 && value <= 467750000) && // was increased from 464 to 467.75
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!(value >= 778999847 && value <= 928000000)) {
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FURI_LOG_I(TAG, "Frequency blocked - outside default range");
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return false;
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} else if(
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(allow_extended_for_int) && //
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!furi_hal_subghz_is_frequency_valid(value)) {
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FURI_LOG_I(TAG, "Frequency blocked - outside dangerous range");
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return false;
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}
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return true;
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}
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uint32_t furi_hal_subghz_set_frequency(uint32_t value) {
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if(furi_hal_subghz_is_tx_allowed(value)) {
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furi_hal_subghz.regulation = SubGhzRegulationTxRx;
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} else {
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furi_hal_subghz.regulation = SubGhzRegulationOnlyRx;
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}
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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uint32_t real_frequency = cc1101_set_frequency(&furi_hal_spi_bus_handle_subghz, value);
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cc1101_calibrate(&furi_hal_spi_bus_handle_subghz);
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while(true) {
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CC1101Status status = cc1101_get_status(&furi_hal_spi_bus_handle_subghz);
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if(status.STATE == CC1101StateIDLE) break;
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}
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furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
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return real_frequency;
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}
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void furi_hal_subghz_set_path(FuriHalSubGhzPath path) {
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
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if(path == FuriHalSubGhzPath433) {
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furi_hal_gpio_write(&gpio_rf_sw_0, 0);
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cc1101_write_reg(
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&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW | CC1101_IOCFG_INV);
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} else if(path == FuriHalSubGhzPath315) {
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furi_hal_gpio_write(&gpio_rf_sw_0, 1);
|
|
cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW);
|
|
} else if(path == FuriHalSubGhzPath868) {
|
|
furi_hal_gpio_write(&gpio_rf_sw_0, 1);
|
|
cc1101_write_reg(
|
|
&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW | CC1101_IOCFG_INV);
|
|
} else if(path == FuriHalSubGhzPathIsolate) {
|
|
furi_hal_gpio_write(&gpio_rf_sw_0, 0);
|
|
cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW);
|
|
} else {
|
|
furi_crash("SubGhz: Incorrect path during set.");
|
|
}
|
|
furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
|
|
}
|
|
|
|
static bool furi_hal_subghz_start_debug() {
|
|
bool ret = false;
|
|
if(furi_hal_subghz.async_mirror_pin != NULL) {
|
|
furi_hal_gpio_init(
|
|
furi_hal_subghz.async_mirror_pin,
|
|
GpioModeOutputPushPull,
|
|
GpioPullNo,
|
|
GpioSpeedVeryHigh);
|
|
ret = true;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static bool furi_hal_subghz_stop_debug() {
|
|
bool ret = false;
|
|
if(furi_hal_subghz.async_mirror_pin != NULL) {
|
|
furi_hal_gpio_init(
|
|
furi_hal_subghz.async_mirror_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
|
|
ret = true;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
volatile uint32_t furi_hal_subghz_capture_delta_duration = 0;
|
|
volatile FuriHalSubGhzCaptureCallback furi_hal_subghz_capture_callback = NULL;
|
|
volatile void* furi_hal_subghz_capture_callback_context = NULL;
|
|
|
|
static void furi_hal_subghz_capture_ISR() {
|
|
// Channel 1
|
|
if(LL_TIM_IsActiveFlag_CC1(TIM2)) {
|
|
LL_TIM_ClearFlag_CC1(TIM2);
|
|
furi_hal_subghz_capture_delta_duration = LL_TIM_IC_GetCaptureCH1(TIM2);
|
|
if(furi_hal_subghz_capture_callback) {
|
|
if(furi_hal_subghz.async_mirror_pin != NULL)
|
|
furi_hal_gpio_write(furi_hal_subghz.async_mirror_pin, false);
|
|
|
|
furi_hal_subghz_capture_callback(
|
|
true,
|
|
furi_hal_subghz_capture_delta_duration,
|
|
(void*)furi_hal_subghz_capture_callback_context);
|
|
}
|
|
}
|
|
// Channel 2
|
|
if(LL_TIM_IsActiveFlag_CC2(TIM2)) {
|
|
LL_TIM_ClearFlag_CC2(TIM2);
|
|
if(furi_hal_subghz_capture_callback) {
|
|
if(furi_hal_subghz.async_mirror_pin != NULL)
|
|
furi_hal_gpio_write(furi_hal_subghz.async_mirror_pin, true);
|
|
|
|
furi_hal_subghz_capture_callback(
|
|
false,
|
|
LL_TIM_IC_GetCaptureCH2(TIM2) - furi_hal_subghz_capture_delta_duration,
|
|
(void*)furi_hal_subghz_capture_callback_context);
|
|
}
|
|
}
|
|
}
|
|
|
|
void furi_hal_subghz_start_async_rx(FuriHalSubGhzCaptureCallback callback, void* context) {
|
|
furi_assert(furi_hal_subghz.state == SubGhzStateIdle);
|
|
furi_hal_subghz.state = SubGhzStateAsyncRx;
|
|
|
|
furi_hal_subghz_capture_callback = callback;
|
|
furi_hal_subghz_capture_callback_context = context;
|
|
|
|
furi_hal_gpio_init_ex(
|
|
&gpio_cc1101_g0, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedLow, GpioAltFn1TIM2);
|
|
|
|
furi_hal_bus_enable(FuriHalBusTIM2);
|
|
|
|
// Timer: base
|
|
LL_TIM_InitTypeDef TIM_InitStruct = {0};
|
|
TIM_InitStruct.Prescaler = 64 - 1;
|
|
TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
|
|
TIM_InitStruct.Autoreload = 0x7FFFFFFE;
|
|
// Clock division for capture filter
|
|
TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV4;
|
|
LL_TIM_Init(TIM2, &TIM_InitStruct);
|
|
|
|
// Timer: advanced
|
|
LL_TIM_SetClockSource(TIM2, LL_TIM_CLOCKSOURCE_INTERNAL);
|
|
LL_TIM_DisableARRPreload(TIM2);
|
|
LL_TIM_SetTriggerInput(TIM2, LL_TIM_TS_TI2FP2);
|
|
LL_TIM_SetSlaveMode(TIM2, LL_TIM_SLAVEMODE_RESET);
|
|
LL_TIM_SetTriggerOutput(TIM2, LL_TIM_TRGO_RESET);
|
|
LL_TIM_EnableMasterSlaveMode(TIM2);
|
|
LL_TIM_DisableDMAReq_TRIG(TIM2);
|
|
LL_TIM_DisableIT_TRIG(TIM2);
|
|
|
|
// Timer: channel 1 indirect
|
|
LL_TIM_IC_SetActiveInput(TIM2, LL_TIM_CHANNEL_CH1, LL_TIM_ACTIVEINPUT_INDIRECTTI);
|
|
LL_TIM_IC_SetPrescaler(TIM2, LL_TIM_CHANNEL_CH1, LL_TIM_ICPSC_DIV1);
|
|
LL_TIM_IC_SetPolarity(TIM2, LL_TIM_CHANNEL_CH1, LL_TIM_IC_POLARITY_FALLING);
|
|
|
|
// Timer: channel 2 direct
|
|
LL_TIM_IC_SetActiveInput(TIM2, LL_TIM_CHANNEL_CH2, LL_TIM_ACTIVEINPUT_DIRECTTI);
|
|
LL_TIM_IC_SetPrescaler(TIM2, LL_TIM_CHANNEL_CH2, LL_TIM_ICPSC_DIV1);
|
|
LL_TIM_IC_SetPolarity(TIM2, LL_TIM_CHANNEL_CH2, LL_TIM_IC_POLARITY_RISING);
|
|
LL_TIM_IC_SetFilter(
|
|
TIM2,
|
|
LL_TIM_CHANNEL_CH2,
|
|
LL_TIM_IC_FILTER_FDIV32_N8); // Capture filter: 1/(64000000/64/4/32*8) = 16us
|
|
|
|
// ISR setup
|
|
furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, furi_hal_subghz_capture_ISR, NULL);
|
|
|
|
// Interrupts and channels
|
|
LL_TIM_EnableIT_CC1(TIM2);
|
|
LL_TIM_EnableIT_CC2(TIM2);
|
|
LL_TIM_CC_EnableChannel(TIM2, LL_TIM_CHANNEL_CH1);
|
|
LL_TIM_CC_EnableChannel(TIM2, LL_TIM_CHANNEL_CH2);
|
|
|
|
// Start timer
|
|
LL_TIM_SetCounter(TIM2, 0);
|
|
LL_TIM_EnableCounter(TIM2);
|
|
|
|
// Start debug
|
|
furi_hal_subghz_start_debug();
|
|
|
|
// Switch to RX
|
|
furi_hal_subghz_rx();
|
|
|
|
// Clear the variable after the end of the session
|
|
furi_hal_subghz_capture_delta_duration = 0;
|
|
}
|
|
|
|
void furi_hal_subghz_stop_async_rx() {
|
|
furi_assert(furi_hal_subghz.state == SubGhzStateAsyncRx);
|
|
furi_hal_subghz.state = SubGhzStateIdle;
|
|
|
|
// Shutdown radio
|
|
furi_hal_subghz_idle();
|
|
|
|
FURI_CRITICAL_ENTER();
|
|
furi_hal_bus_disable(FuriHalBusTIM2);
|
|
|
|
// Stop debug
|
|
furi_hal_subghz_stop_debug();
|
|
|
|
FURI_CRITICAL_EXIT();
|
|
furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, NULL, NULL);
|
|
|
|
furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
|
|
}
|
|
|
|
typedef struct {
|
|
uint32_t* buffer;
|
|
LevelDuration carry_ld;
|
|
FuriHalSubGhzAsyncTxCallback callback;
|
|
void* callback_context;
|
|
uint64_t duty_high;
|
|
uint64_t duty_low;
|
|
} FuriHalSubGhzAsyncTx;
|
|
|
|
static FuriHalSubGhzAsyncTx furi_hal_subghz_async_tx = {0};
|
|
|
|
static void furi_hal_subghz_async_tx_refill(uint32_t* buffer, size_t samples) {
|
|
furi_assert(furi_hal_subghz.state == SubGhzStateAsyncTx);
|
|
while(samples > 0) {
|
|
bool is_odd = samples % 2;
|
|
LevelDuration ld;
|
|
if(level_duration_is_reset(furi_hal_subghz_async_tx.carry_ld)) {
|
|
ld = furi_hal_subghz_async_tx.callback(furi_hal_subghz_async_tx.callback_context);
|
|
} else {
|
|
ld = furi_hal_subghz_async_tx.carry_ld;
|
|
furi_hal_subghz_async_tx.carry_ld = level_duration_reset();
|
|
}
|
|
|
|
if(level_duration_is_wait(ld)) {
|
|
*buffer = API_HAL_SUBGHZ_ASYNC_TX_GUARD_TIME;
|
|
buffer++;
|
|
samples--;
|
|
} else if(level_duration_is_reset(ld)) {
|
|
*buffer = 0;
|
|
buffer++;
|
|
samples--;
|
|
LL_DMA_DisableIT_HT(SUBGHZ_DMA_CH1_DEF);
|
|
LL_DMA_DisableIT_TC(SUBGHZ_DMA_CH1_DEF);
|
|
LL_TIM_EnableIT_UPDATE(TIM2);
|
|
break;
|
|
} else {
|
|
bool level = level_duration_get_level(ld);
|
|
|
|
// Inject guard time if level is incorrect
|
|
if(is_odd != level) {
|
|
*buffer = API_HAL_SUBGHZ_ASYNC_TX_GUARD_TIME;
|
|
buffer++;
|
|
samples--;
|
|
if(is_odd) {
|
|
furi_hal_subghz_async_tx.duty_high += API_HAL_SUBGHZ_ASYNC_TX_GUARD_TIME;
|
|
} else {
|
|
furi_hal_subghz_async_tx.duty_low += API_HAL_SUBGHZ_ASYNC_TX_GUARD_TIME;
|
|
}
|
|
|
|
// Special case: prevent buffer overflow if sample is last
|
|
if(samples == 0) {
|
|
furi_hal_subghz_async_tx.carry_ld = ld;
|
|
break;
|
|
}
|
|
}
|
|
|
|
uint32_t duration = level_duration_get_duration(ld);
|
|
furi_assert(duration > 0);
|
|
*buffer = duration;
|
|
buffer++;
|
|
samples--;
|
|
|
|
if(is_odd) {
|
|
furi_hal_subghz_async_tx.duty_high += duration;
|
|
} else {
|
|
furi_hal_subghz_async_tx.duty_low += duration;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void furi_hal_subghz_async_tx_dma_isr() {
|
|
furi_assert(furi_hal_subghz.state == SubGhzStateAsyncTx);
|
|
|
|
#if SUBGHZ_DMA_CH1_CHANNEL == LL_DMA_CHANNEL_1
|
|
if(LL_DMA_IsActiveFlag_HT1(SUBGHZ_DMA)) {
|
|
LL_DMA_ClearFlag_HT1(SUBGHZ_DMA);
|
|
furi_hal_subghz_async_tx_refill(
|
|
furi_hal_subghz_async_tx.buffer, API_HAL_SUBGHZ_ASYNC_TX_BUFFER_HALF);
|
|
}
|
|
if(LL_DMA_IsActiveFlag_TC1(SUBGHZ_DMA)) {
|
|
LL_DMA_ClearFlag_TC1(SUBGHZ_DMA);
|
|
furi_hal_subghz_async_tx_refill(
|
|
furi_hal_subghz_async_tx.buffer + API_HAL_SUBGHZ_ASYNC_TX_BUFFER_HALF,
|
|
API_HAL_SUBGHZ_ASYNC_TX_BUFFER_HALF);
|
|
}
|
|
#else
|
|
#error Update this code. Would you kindly?
|
|
#endif
|
|
}
|
|
|
|
static void furi_hal_subghz_async_tx_timer_isr() {
|
|
if(LL_TIM_IsActiveFlag_UPDATE(TIM2)) {
|
|
LL_TIM_ClearFlag_UPDATE(TIM2);
|
|
if(LL_TIM_GetAutoReload(TIM2) == 0) {
|
|
if(furi_hal_subghz.state == SubGhzStateAsyncTx) {
|
|
furi_hal_subghz.state = SubGhzStateAsyncTxLast;
|
|
LL_DMA_DisableChannel(SUBGHZ_DMA_CH1_DEF);
|
|
} else if(furi_hal_subghz.state == SubGhzStateAsyncTxLast) {
|
|
furi_hal_subghz.state = SubGhzStateAsyncTxEnd;
|
|
//forcibly pulls the pin to the ground so that there is no carrier
|
|
furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullDown, GpioSpeedLow);
|
|
LL_TIM_DisableCounter(TIM2);
|
|
} else {
|
|
furi_crash(NULL);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool furi_hal_subghz_start_async_tx(FuriHalSubGhzAsyncTxCallback callback, void* context) {
|
|
furi_assert(furi_hal_subghz.state == SubGhzStateIdle);
|
|
furi_assert(callback);
|
|
|
|
//If transmission is prohibited by regional settings
|
|
if(furi_hal_subghz.regulation != SubGhzRegulationTxRx) return false;
|
|
|
|
furi_hal_subghz_async_tx.callback = callback;
|
|
furi_hal_subghz_async_tx.callback_context = context;
|
|
|
|
furi_hal_subghz.state = SubGhzStateAsyncTx;
|
|
|
|
furi_hal_subghz_async_tx.duty_low = 0;
|
|
furi_hal_subghz_async_tx.duty_high = 0;
|
|
|
|
furi_hal_subghz_async_tx.buffer =
|
|
malloc(API_HAL_SUBGHZ_ASYNC_TX_BUFFER_FULL * sizeof(uint32_t));
|
|
|
|
// Connect CC1101_GD0 to TIM2 as output
|
|
furi_hal_gpio_init_ex(
|
|
&gpio_cc1101_g0, GpioModeAltFunctionPushPull, GpioPullDown, GpioSpeedLow, GpioAltFn1TIM2);
|
|
|
|
// Configure DMA
|
|
LL_DMA_InitTypeDef dma_config = {0};
|
|
dma_config.PeriphOrM2MSrcAddress = (uint32_t) & (TIM2->ARR);
|
|
dma_config.MemoryOrM2MDstAddress = (uint32_t)furi_hal_subghz_async_tx.buffer;
|
|
dma_config.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
|
|
dma_config.Mode = LL_DMA_MODE_CIRCULAR;
|
|
dma_config.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
|
|
dma_config.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
|
|
dma_config.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
|
|
dma_config.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
|
|
dma_config.NbData = API_HAL_SUBGHZ_ASYNC_TX_BUFFER_FULL;
|
|
dma_config.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
|
|
dma_config.Priority = LL_DMA_MODE_NORMAL;
|
|
LL_DMA_Init(SUBGHZ_DMA_CH1_DEF, &dma_config);
|
|
furi_hal_interrupt_set_isr(SUBGHZ_DMA_CH1_IRQ, furi_hal_subghz_async_tx_dma_isr, NULL);
|
|
LL_DMA_EnableIT_TC(SUBGHZ_DMA_CH1_DEF);
|
|
LL_DMA_EnableIT_HT(SUBGHZ_DMA_CH1_DEF);
|
|
LL_DMA_EnableChannel(SUBGHZ_DMA_CH1_DEF);
|
|
|
|
furi_hal_bus_enable(FuriHalBusTIM2);
|
|
|
|
// Configure TIM2
|
|
LL_TIM_InitTypeDef TIM_InitStruct = {0};
|
|
TIM_InitStruct.Prescaler = 64 - 1;
|
|
TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
|
|
TIM_InitStruct.Autoreload = 1000;
|
|
TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
|
|
LL_TIM_Init(TIM2, &TIM_InitStruct);
|
|
LL_TIM_SetClockSource(TIM2, LL_TIM_CLOCKSOURCE_INTERNAL);
|
|
LL_TIM_EnableARRPreload(TIM2);
|
|
|
|
// Configure TIM2 CH2
|
|
LL_TIM_OC_InitTypeDef TIM_OC_InitStruct = {0};
|
|
TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_TOGGLE;
|
|
TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_DISABLE;
|
|
TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_DISABLE;
|
|
TIM_OC_InitStruct.CompareValue = 0;
|
|
TIM_OC_InitStruct.OCPolarity = LL_TIM_OCPOLARITY_LOW;
|
|
LL_TIM_OC_Init(TIM2, LL_TIM_CHANNEL_CH2, &TIM_OC_InitStruct);
|
|
LL_TIM_OC_DisableFast(TIM2, LL_TIM_CHANNEL_CH2);
|
|
LL_TIM_DisableMasterSlaveMode(TIM2);
|
|
|
|
furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, furi_hal_subghz_async_tx_timer_isr, NULL);
|
|
|
|
furi_hal_subghz_async_tx_refill(
|
|
furi_hal_subghz_async_tx.buffer, API_HAL_SUBGHZ_ASYNC_TX_BUFFER_FULL);
|
|
|
|
LL_TIM_EnableDMAReq_UPDATE(TIM2);
|
|
LL_TIM_CC_EnableChannel(TIM2, LL_TIM_CHANNEL_CH2);
|
|
|
|
// Start counter
|
|
LL_TIM_GenerateEvent_UPDATE(TIM2);
|
|
#ifdef FURI_HAL_SUBGHZ_TX_GPIO
|
|
furi_hal_gpio_write(&FURI_HAL_SUBGHZ_TX_GPIO, true);
|
|
#endif
|
|
furi_hal_subghz_tx();
|
|
|
|
LL_TIM_SetCounter(TIM2, 0);
|
|
LL_TIM_EnableCounter(TIM2);
|
|
|
|
// Start debug
|
|
if(furi_hal_subghz_start_debug()) {
|
|
const GpioPin* gpio = furi_hal_subghz.async_mirror_pin;
|
|
// //Preparing bit mask
|
|
// //Debug pin is may be only PORTB! (PB0, PB1, .., PB15)
|
|
// furi_hal_subghz_debug_gpio_buff[0] = 0;
|
|
// furi_hal_subghz_debug_gpio_buff[1] = 0;
|
|
|
|
furi_hal_subghz_debug_gpio_buff[0] = (uint32_t)gpio->pin << GPIO_NUMBER;
|
|
furi_hal_subghz_debug_gpio_buff[1] = gpio->pin;
|
|
|
|
dma_config.MemoryOrM2MDstAddress = (uint32_t)furi_hal_subghz_debug_gpio_buff;
|
|
dma_config.PeriphOrM2MSrcAddress = (uint32_t) & (gpio->port->BSRR);
|
|
dma_config.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
|
|
dma_config.Mode = LL_DMA_MODE_CIRCULAR;
|
|
dma_config.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
|
|
dma_config.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
|
|
dma_config.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
|
|
dma_config.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
|
|
dma_config.NbData = 2;
|
|
dma_config.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
|
|
dma_config.Priority = LL_DMA_PRIORITY_VERYHIGH;
|
|
LL_DMA_Init(SUBGHZ_DMA_CH2_DEF, &dma_config);
|
|
LL_DMA_SetDataLength(SUBGHZ_DMA_CH2_DEF, 2);
|
|
LL_DMA_EnableChannel(SUBGHZ_DMA_CH2_DEF);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool furi_hal_subghz_is_async_tx_complete() {
|
|
return furi_hal_subghz.state == SubGhzStateAsyncTxEnd;
|
|
}
|
|
|
|
void furi_hal_subghz_stop_async_tx() {
|
|
furi_assert(
|
|
furi_hal_subghz.state == SubGhzStateAsyncTx ||
|
|
furi_hal_subghz.state == SubGhzStateAsyncTxLast ||
|
|
furi_hal_subghz.state == SubGhzStateAsyncTxEnd);
|
|
|
|
// Shutdown radio
|
|
furi_hal_subghz_idle();
|
|
#ifdef FURI_HAL_SUBGHZ_TX_GPIO
|
|
furi_hal_gpio_write(&FURI_HAL_SUBGHZ_TX_GPIO, false);
|
|
#endif
|
|
|
|
// Deinitialize Timer
|
|
FURI_CRITICAL_ENTER();
|
|
furi_hal_bus_disable(FuriHalBusTIM2);
|
|
furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, NULL, NULL);
|
|
|
|
// Deinitialize DMA
|
|
LL_DMA_DeInit(SUBGHZ_DMA_CH1_DEF);
|
|
|
|
furi_hal_interrupt_set_isr(SUBGHZ_DMA_CH1_IRQ, NULL, NULL);
|
|
|
|
// Deinitialize GPIO
|
|
furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
|
|
|
|
// Stop debug
|
|
if(furi_hal_subghz_stop_debug()) {
|
|
LL_DMA_DisableChannel(SUBGHZ_DMA_CH2_DEF);
|
|
}
|
|
|
|
FURI_CRITICAL_EXIT();
|
|
|
|
free(furi_hal_subghz_async_tx.buffer);
|
|
|
|
float duty_cycle =
|
|
100.0f * (float)furi_hal_subghz_async_tx.duty_high /
|
|
((float)furi_hal_subghz_async_tx.duty_low + (float)furi_hal_subghz_async_tx.duty_high);
|
|
FURI_LOG_D(
|
|
TAG,
|
|
"Async TX Radio stats: on %0.0fus, off %0.0fus, DutyCycle: %0.0f%%",
|
|
(double)furi_hal_subghz_async_tx.duty_high,
|
|
(double)furi_hal_subghz_async_tx.duty_low,
|
|
(double)duty_cycle);
|
|
|
|
furi_hal_subghz.state = SubGhzStateIdle;
|
|
}
|