unleashed-firmware/firmware/targets/f7/furi_hal/furi_hal_uart.h
Georgii Surkov 01434265f6
[FL-2399, FL-2261] Tickless sleep shenanigans (#1168)
* Disable USART in sleep
* Restore UART state on suspend/resume
* FuriHal: Enable stop mode and add insomnia to I2C and SPI
* Remove IDLE interrupt
* FuriHal: add FPU isr and disable all FPU interrupt, add core2 stop mode configuration on deep sleep
* FuriHal: tie stop mode debug with debug rtc flag
* FuriHal: adjust flash latency on clock switch, tie mcu debug with RTC debug flag
* FuriHal: move resource init to early stage
* Add EXTI pending check, enable debug traps with compile-time flag
* Wrap sleep debug functions in conditional compilation
* Remove erroneous changed
* Do not use CSS, remove it from everywhere
* Enable/disable USB on VBUS connect (prototype)
* FuriHal: add LPMS and DEEPSLEEP magic, workaround state inconsistency between cores
* FuriHal: honor c1 LMPS
* USB mode switch fix
* Applications: add flags and insomnia bypass system
* Correct spelling
* FuriHal: cleanup insomnia usage, reset sleep flags on wakeup, add shutdown api
* FuriHal: extra check on reinit request
* FuriHal: rename gpio_display_rst pin to gpio_display_rst_n
* FuriHal: add debug HAL
* FuriHal: add some magic to core2 reload procedure, fix issue with crash on ble keyboard exit
* FuriHal: cleanup ble glue, add BLE_GLUE_DEBUG flag
* FuriHal: ble reinit API, move os timer to LPTIM1 for deep sleep capability, shutdown that works
* FuriHal: take insomnia while shutdown
* Remove USB switch on/off on VBUS change
* Better tick skew handling
* Improve tick consistency under load
* Add USB_HP dummy IRQ handler
* Move interrupt check closer to sleep
* Clean up includes
* Re-enable Insomnia globally
* FuriHal: enable CSS
* FuriHal: remove questionable core2 clock shenanigans
* FuriHal: use core1 RCC registers in idle timer config
* FuriHal: return back CSS handlers, add lptim isr dispatching

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
Co-authored-by: nminaylov <nm29719@gmail.com>
2022-04-29 16:29:51 +03:00

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/**
* @file furi_hal_uart.h
* @version 1.0
* @date 2021-11-19
*
* UART HAL api interface
*/
#pragma once
#include <stddef.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* UART channels
*/
typedef enum {
FuriHalUartIdUSART1,
FuriHalUartIdLPUART1,
} FuriHalUartId;
/**
* UART events
*/
typedef enum {
UartIrqEventRXNE,
} UartIrqEvent;
/**
* Init UART
* Configures GPIO to UART function, сonfigures UART hardware, enables UART hardware
* @param channel UART channel
* @param baud baudrate
*/
void furi_hal_uart_init(FuriHalUartId channel, uint32_t baud);
/**
* Deinit UART
* Configures GPIO to analog, clears callback and callback context, disables UART hardware
* @param channel UART channel
*/
void furi_hal_uart_deinit(FuriHalUartId channel);
/**
* Suspend UART operation
* Disables UART hardware, settings and callbacks are preserved
* @param channel UART channel
*/
void furi_hal_uart_suspend(FuriHalUartId channel);
/**
* Resume UART operation
* Resumes UART hardware from suspended state
* @param channel UART channel
*/
void furi_hal_uart_resume(FuriHalUartId channel);
/**
* Changes UART baudrate
* @param channel UART channel
* @param baud baudrate
*/
void furi_hal_uart_set_br(FuriHalUartId channel, uint32_t baud);
/**
* Transmits data
* @param channel UART channel
* @param buffer data
* @param buffer_size data size (in bytes)
*/
void furi_hal_uart_tx(FuriHalUartId channel, uint8_t* buffer, size_t buffer_size);
/**
* Sets UART event callback
* @param channel UART channel
* @param callback callback pointer
* @param context callback context
*/
void furi_hal_uart_set_irq_cb(
FuriHalUartId channel,
void (*callback)(UartIrqEvent event, uint8_t data, void* context),
void* context);
#ifdef __cplusplus
}
#endif