UART

UART serial bus driver. More...

Data Structures
struct	ove_uart_cfg
	UART configuration descriptor. More...

Enumerations
enum	ove_uart_parity_t { OVE_UART_PARITY_NONE = 0 , OVE_UART_PARITY_ODD = 1 , OVE_UART_PARITY_EVEN = 2 }
enum	ove_uart_stop_t { OVE_UART_STOP_1 = 0 , OVE_UART_STOP_1_5 = 1 , OVE_UART_STOP_2 = 2 }
enum	ove_uart_flow_t { OVE_UART_FLOW_NONE = 0 , OVE_UART_FLOW_RTS_CTS = 1 }

Functions
static int	ove_uart_create (ove_uart_t *u, const struct ove_uart_cfg *c)
static void	ove_uart_destroy (ove_uart_t u)
static int	ove_uart_write (ove_uart_t u, const void *d, size_t l, uint32_t t, size_t *bw)
static int	ove_uart_read (ove_uart_t u, void *b, size_t l, uint32_t t, size_t *br)
static size_t	ove_uart_bytes_available (ove_uart_t u)
static int	ove_uart_flush (ove_uart_t u)
static void	ove_uart_rx_isr_push (ove_uart_t u, const void *d, size_t l)

Detailed Description

UART serial bus driver.

Provides a portable, multi-instance UART API with configurable baud rate and framing, interrupt-driven RX buffering, thread-safe TX, and blocking read/write with timeout.

RX bytes are buffered internally via an Stream. Backend ISR handlers push received bytes through ove_uart_rx_isr_push() which the portable layer provides.

Two allocation strategies are supported:

• _create() / _destroy() — unified API (heap or zero-heap macro). In zero-heap mode rx_buf_size in the config must be a compile-time constant.
• _init() / _deinit() — explicit storage with caller-supplied RX buffer.

Note

Requires CONFIG_OVE_UART.