55 lines
2.2 KiB
Diff
55 lines
2.2 KiB
Diff
diff --git a/targets/f7/furi_hal/furi_hal_infrared.c b/targets/f7/furi_hal/furi_hal_infrared.c
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index 9c0d84c55..b2592ee6d 100644
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--- a/targets/f7/furi_hal/furi_hal_infrared.c
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+++ b/targets/f7/furi_hal/furi_hal_infrared.c
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@@ -2,6 +2,7 @@
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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 <furi_hal_power.h>
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#include <stm32wbxx_ll_tim.h>
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#include <stm32wbxx_ll_dma.h>
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@@ -79,6 +80,7 @@ static volatile InfraredState furi_hal_infrared_state = InfraredStateIdle;
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static InfraredTimTx infrared_tim_tx;
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static InfraredTimRx infrared_tim_rx;
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static bool infrared_external_output;
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+static bool was_otg_requested = false;
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static void furi_hal_infrared_tx_fill_buffer(uint8_t buf_num, uint8_t polarity_shift);
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static void furi_hal_infrared_async_tx_free_resources(void);
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@@ -585,6 +587,9 @@ static void furi_hal_infrared_async_tx_free_resources(void) {
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} else {
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furi_hal_gpio_init(&gpio_infrared_tx, GpioModeAnalog, GpioPullDown, GpioSpeedLow);
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}
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+ if(was_otg_requested) {
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+ furi_hal_power_disable_otg();
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+ }
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furi_hal_interrupt_set_isr(INFRARED_DMA_CH1_IRQ, NULL, NULL);
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furi_hal_interrupt_set_isr(INFRARED_DMA_CH2_IRQ, NULL, NULL);
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@@ -645,6 +650,23 @@ void furi_hal_infrared_async_tx_start(uint32_t freq, float duty_cycle) {
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furi_delay_us(5);
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LL_TIM_GenerateEvent_UPDATE(INFRARED_DMA_TIMER); /* DMA -> TIMx_RCR */
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furi_delay_us(5);
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+
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+ // Detect if a module (like IR Blaster) is connected to PA7.
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+ furi_hal_gpio_init(&gpio_ext_pa7, GpioModeInput, GpioPullUp, GpioSpeedHigh);
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+ furi_delay_ms(1);
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+ infrared_external_output = !furi_hal_gpio_read(&gpio_ext_pa7);
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+ furi_hal_gpio_init(&gpio_ext_pa7, GpioModeAnalog, GpioPullDown, GpioSpeedLow);
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+
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+ if(infrared_external_output) {
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+ was_otg_requested = !furi_hal_power_is_otg_enabled();
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+ if(was_otg_requested) {
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+ furi_hal_power_enable_otg();
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+ furi_delay_ms(100);
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+ }
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+ } else {
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+ was_otg_requested = false;
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+ }
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+
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if(infrared_external_output) {
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LL_GPIO_ResetOutputPin(
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gpio_ext_pa7.port, gpio_ext_pa7.pin); /* when disable it prevents false pulse */
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