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Update directions for CFW

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This commit is contained in:
Derek Jamison
2024-01-23 12:27:11 -06:00
parent 6d812948f3
commit 50141c9e74
2 changed files with 64 additions and 3 deletions
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54
gpio/ir_blaster/cfw-ir-blaster.patch Normal file
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@@ -0,0 +1,54 @@
diff --git a/targets/f7/furi_hal/furi_hal_infrared.c b/targets/f7/furi_hal/furi_hal_infrared.c
index 9c0d84c55..b2592ee6d 100644
--- a/targets/f7/furi_hal/furi_hal_infrared.c
+++ b/targets/f7/furi_hal/furi_hal_infrared.c
@@ -2,6 +2,7 @@
#include <furi_hal_interrupt.h>
#include <furi_hal_resources.h>
#include <furi_hal_bus.h>
+#include <furi_hal_power.h>
#include <stm32wbxx_ll_tim.h>
#include <stm32wbxx_ll_dma.h>
@@ -79,6 +80,7 @@ static volatile InfraredState furi_hal_infrared_state = InfraredStateIdle;
static InfraredTimTx infrared_tim_tx;
static InfraredTimRx infrared_tim_rx;
static bool infrared_external_output;
+static bool was_otg_requested = false;
static void furi_hal_infrared_tx_fill_buffer(uint8_t buf_num, uint8_t polarity_shift);
static void furi_hal_infrared_async_tx_free_resources(void);
@@ -585,6 +587,9 @@ static void furi_hal_infrared_async_tx_free_resources(void) {
} else {
furi_hal_gpio_init(&gpio_infrared_tx, GpioModeAnalog, GpioPullDown, GpioSpeedLow);
}
+ if(was_otg_requested) {
+ furi_hal_power_disable_otg();
+ }
furi_hal_interrupt_set_isr(INFRARED_DMA_CH1_IRQ, NULL, NULL);
furi_hal_interrupt_set_isr(INFRARED_DMA_CH2_IRQ, NULL, NULL);
@@ -645,6 +650,23 @@ void furi_hal_infrared_async_tx_start(uint32_t freq, float duty_cycle) {
furi_delay_us(5);
LL_TIM_GenerateEvent_UPDATE(INFRARED_DMA_TIMER); /* DMA -> TIMx_RCR */
furi_delay_us(5);
+
+ // Detect if a module (like IR Blaster) is connected to PA7.
+ furi_hal_gpio_init(&gpio_ext_pa7, GpioModeInput, GpioPullUp, GpioSpeedHigh);
+ furi_delay_ms(1);
+ infrared_external_output = !furi_hal_gpio_read(&gpio_ext_pa7);
+ furi_hal_gpio_init(&gpio_ext_pa7, GpioModeAnalog, GpioPullDown, GpioSpeedLow);
+
+ if(infrared_external_output) {
+ was_otg_requested = !furi_hal_power_is_otg_enabled();
+ if(was_otg_requested) {
+ furi_hal_power_enable_otg();
+ furi_delay_ms(100);
+ }
+ } else {
+ was_otg_requested = false;
+ }
+
if(infrared_external_output) {
LL_GPIO_ResetOutputPin(
gpio_ext_pa7.port, gpio_ext_pa7.pin); /* when disable it prevents false pulse */