Data Structures
struct	XUartNs550_Config
	This typedef contains configuration information for the device. More...

struct	XUartNs550Buffer
	The following data type is used to manage the buffers that are handled when sending and receiving data in the interrupt mode. More...

struct	XUartNs550Format
	This data type allows the data format of the device to be set and retrieved. More...

struct	XUartNs550Stats
	UART statistics. More...

struct	XUartNs550
	The XUartNs550 driver instance data. More...

Macros
Configuration options
#define	XUN_OPTION_RXLINE_INTR 0x0800
	These constants specify the options that may be set or retrieved with the driver, each is a unique bit mask such that multiple options may be specified. More...

#define	XUN_OPTION_SET_BREAK 0x0400
	Set a break condition. More...

#define	XUN_OPTION_LOOPBACK 0x0200
	Enable local loopback. More...

#define	XUN_OPTION_DATA_INTR 0x0100
	Enable data interrupts. More...

#define	XUN_OPTION_MODEM_INTR 0x0080
	Enable modem interrupts. More...

#define	XUN_OPTION_FIFOS_ENABLE 0x0040
	Enable FIFOs. More...

#define	XUN_OPTION_RESET_TX_FIFO 0x0020
	Reset the transmit FIFO. More...

#define	XUN_OPTION_RESET_RX_FIFO 0x0010
	Reset the receive FIFO. More...

#define	XUN_OPTION_ASSERT_OUT2 0x0008
	Assert out2 signal. More...

#define	XUN_OPTION_ASSERT_OUT1 0x0004
	Assert out1 signal. More...

#define	XUN_OPTION_ASSERT_RTS 0x0002
	Assert RTS signal. More...

#define	XUN_OPTION_ASSERT_DTR 0x0001
	Assert DTR signal. More...

Data format values
#define	XUN_FORMAT_8_BITS 3
	These constants specify the data format that may be set or retrieved with the driver. More...

#define	XUN_FORMAT_7_BITS 2
	7 data bits More...

#define	XUN_FORMAT_6_BITS 1
	6 data bits More...

#define	XUN_FORMAT_5_BITS 0
	5 data bits More...

#define	XUN_FORMAT_EVEN_PARITY 2
	Even Parity. More...

#define	XUN_FORMAT_ODD_PARITY 1
	Odd Parity. More...

#define	XUN_FORMAT_NO_PARITY 0
	No Parity. More...

#define	XUN_FORMAT_2_STOP_BIT 1
	2 stop bits More...

#define	XUN_FORMAT_1_STOP_BIT 0
	1 stop bit More...

FIFO trigger values
#define	XUN_FIFO_TRIGGER_14 0xC0
	14 byte trigger level More...

#define	XUN_FIFO_TRIGGER_08 0x80
	8 byte trigger level More...

#define	XUN_FIFO_TRIGGER_04 0x40
	4 byte trigger level More...

#define	XUN_FIFO_TRIGGER_01 0x00
	1 byte trigger level More...

Modem status values
#define	XUN_MODEM_DCD_DELTA_MASK 0x08
	These constants specify the modem status that may be retrieved from the driver. More...

#define	XUN_MODEM_DSR_DELTA_MASK 0x02
	DSR signal changed state. More...

#define	XUN_MODEM_CTS_DELTA_MASK 0x01
	CTS signal changed state. More...

#define	XUN_MODEM_RINGING_MASK 0x40
	Ring signal is active. More...

#define	XUN_MODEM_DSR_MASK 0x20
	Current state of DSR signal. More...

#define	XUN_MODEM_CTS_MASK 0x10
	Current state of CTS signal. More...

#define	XUN_MODEM_DCD_MASK 0x80
	Current state of DCD signal. More...

#define	XUN_MODEM_RING_STOP_MASK 0x04
	Ringing has stopped. More...

Callback events
#define	XUN_EVENT_RECV_DATA 1
	These constants specify the handler events that are passed to a handler from the driver. More...

#define	XUN_EVENT_RECV_TIMEOUT 2
	A receive timeout occurred. More...

#define	XUN_EVENT_SENT_DATA 3
	Data has been sent. More...

#define	XUN_EVENT_RECV_ERROR 4
	A receive error was detected. More...

#define	XUN_EVENT_MODEM 5
	A change in modem status. More...

Error values
#define	XUN_ERROR_BREAK_MASK 0x10
	These constants specify the errors that may be retrieved from the driver using the XUartNs550_GetLastErrors function. More...

#define	XUN_ERROR_FRAMING_MASK 0x08
	Receive framing error. More...

#define	XUN_ERROR_PARITY_MASK 0x04
	Receive parity error. More...

#define	XUN_ERROR_OVERRUN_MASK 0x02
	Receive overrun error. More...

#define	XUN_ERROR_NONE 0x00
	No error. More...

Typedefs
typedef void(*	XUartNs550_Handler )(void *CallBackRef, u32 Event, unsigned int EventData)
	This data type defines a handler which the application must define when using interrupt mode. More...

Functions
int	XUartNs550_Initialize (XUartNs550 *InstancePtr, u16 DeviceId)
	Initializes a specific XUartNs550 instance such that it is ready to be used. More...

XUartNs550_Config *	XUartNs550_LookupConfig (u16 DeviceId)
	Looks up the device configuration based on the unique device ID. More...

int	XUartNs550_CfgInitialize (XUartNs550 InstancePtr, XUartNs550_Config Config, UINTPTR EffectiveAddr)
	Initializes a specific XUartNs550 instance such that it is ready to be used. More...

unsigned int	XUartNs550_Send (XUartNs550 InstancePtr, u8 BufferPtr, unsigned int NumBytes)
	This functions sends the specified buffer of data using the UART in either polled or interrupt driven modes. More...

unsigned int	XUartNs550_Recv (XUartNs550 InstancePtr, u8 BufferPtr, unsigned int NumBytes)
	This function will attempt to receive a specified number of bytes of data from the UART and store it into the specified buffer. More...

int	XUartNs550_SetOptions (XUartNs550 *InstancePtr, u16 Options)
	Sets the options for the specified driver instance. More...

u16	XUartNs550_GetOptions (XUartNs550 *InstancePtr)
	Gets the options for the specified driver instance. More...

int	XUartNs550_SetFifoThreshold (XUartNs550 *InstancePtr, u8 TriggerLevel)
	This functions sets the receive FIFO trigger level. More...

u8	XUartNs550_GetFifoThreshold (XUartNs550 *InstancePtr)
	This function gets the receive FIFO trigger level. More...

int	XUartNs550_IsSending (XUartNs550 *InstancePtr)
	This function determines if the specified UART is sending data. More...

u8	XUartNs550_GetLastErrors (XUartNs550 *InstancePtr)
	This function returns the last errors that have occurred in the specified UART. More...

u8	XUartNs550_GetModemStatus (XUartNs550 *InstancePtr)
	This function gets the modem status from the specified UART. More...

int	XUartNs550_SetDataFormat (XUartNs550 InstancePtr, XUartNs550Format FormatPtr)
	Sets the data format for the specified UART. More...

void	XUartNs550_GetDataFormat (XUartNs550 InstancePtr, XUartNs550Format FormatPtr)
	Gets the data format for the specified UART. More...

void	XUartNs550_SetHandler (XUartNs550 InstancePtr, XUartNs550_Handler FuncPtr, void CallBackRef)
	This function sets the handler that will be called when an event (interrupt) occurs in the driver. More...

void	XUartNs550_InterruptHandler (XUartNs550 *InstancePtr)
	This function is the interrupt handler for the 16450/16550 UART driver. More...

void	XUartNs550_GetStats (XUartNs550 InstancePtr, XUartNs550Stats StatsPtr)
	This functions returns a snapshot of the current statistics in the area provided. More...

void	XUartNs550_ClearStats (XUartNs550 *InstancePtr)
	This function zeros the statistics for the given instance. More...

int	XUartNs550_SelfTest (XUartNs550 *InstancePtr)
	This functions runs a self-test on the driver and hardware device. More...

Data Structures

Macros

Typedefs

Functions