usartat91.c

Included in:	nut/arch/arm/dev/atmel/usart0at91.c
	nut/arch/arm/dev/atmel/usart1at91.c

Included Files

#include <nut/include/cfg/clock.h>

#include <nut/include/sys/atom.h>

#include <nut/include/sys/event.h>

#include <nut/include/sys/timer.h>

#include <nut/include/dev/irqreg.h>

#include <nut/include/dev/usartat91.h>

Preprocessor definitions

#define UART_INIT_BAUDRATE 115200

#define UART_RXTX_PINS_ENABLE

#define UART_HDX_PIN_ENABLE

#define UART_HDX_RX

#define UART_HDX_TX

#define UART_RTS_PIN_ENABLE

#define UART_RTS_ON

#define UART_RTS_OFF

#define UART_CTS_PIN_ENABLE

#define UART_CTS_IS_ON

#define UART_MODEM_PINS_ENABLE

#define USE_BUILT_IN_HARDWARE_HANDSHAKE 0

#define USE_BUILT_IN_HALF_DUPLEX 0

#define NutUartIrqRegister NutRegisterSysIrqHandler

#define NutUartIrqEnable NutSysIrqEnable

#define NutUartIrqDisable NutSysIrqDisable

#define ASCII_XON 0x11

#define ASCII_XOFF 0x13

#define XON_PENDING 0x10

#define XOFF_PENDING 0x20

#define XOFF_SENT 0x40

#define XOFF_RCVD 0x80

Local Variables

rx_errors
static unsigned int rx_errors

Used in:	At91UsartGetStatus()
	At91UsartRxReady()

flow_control
static uint_fast8_t flow_control

Used in:	At91UsartGetFlowControl()
	At91UsartGetStatus()
	At91UsartRxReady()
	At91UsartRxStart()
	At91UsartSetFlowControl()
	At91UsartSetStatus()
	At91UsartTxReady()

tx_aframe
static uint_fast8_t tx_aframe

Used in:	At91UsartGetStatus()
	At91UsartSetStatus()
	At91UsartTxReady()

hdx_control
static uint_fast8_t hdx_control

Used in:	At91UsartDeinit()
	At91UsartGetFlowControl()
	At91UsartSetFlowControl()
	At91UsartTxEmpty()
	At91UsartTxReady()
	At91UsartTxStart()

rts_control
static uint_fast8_t rts_control

Used in:	At91UsartDeinit()
	At91UsartSetFlowControl()
	At91UsartSetStatus()

cts_sense
static uint_fast8_t cts_sense

Used in:	At91UsartDeinit()
	At91UsartGetStatus()
	At91UsartSetFlowControl()

Local Function At91UsartDeinit()

static int At91UsartDeinit ( void )

Calls:	NutRegisterSysIrqHandler()
References Variables:	cts_sense	nut/arch/arm/dev/atmel/usartat91.c
	hdx_control	nut/arch/arm/dev/atmel/usartat91.c
	rts_control	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartDisable()

static void At91UsartDisable ( void )

Calls:	NutSysIrqDisable()
Called by:	At91UsartSetParity()	nut/arch/arm/dev/atmel/usartat91.c
	At91UsartSetSpeed()	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartEnable()

static void At91UsartEnable ( void )

Calls:	NutSysIrqEnable()
Called by:	At91UsartSetParity()	nut/arch/arm/dev/atmel/usartat91.c
	At91UsartSetSpeed()	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartGetClockMode()

static uint8_t At91UsartGetClockMode ( void )

Local Function At91UsartGetDataBits()

static uint8_t At91UsartGetDataBits ( void )

Local Function At91UsartGetFlowControl()

static uint32_t At91UsartGetFlowControl ( void )

References Variables:	flow_control	nut/arch/arm/dev/atmel/usartat91.c
	hdx_control	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartGetParity()

static uint8_t At91UsartGetParity ( void )

Called by:

At91UsartSetParity()

nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartGetSpeed()

static uint32_t At91UsartGetSpeed ( void )

Calls:

NutGetCpuClock()

Local Function At91UsartGetStatus()

static uint32_t At91UsartGetStatus ( void )

Called by:	At91UsartSetStatus()	nut/arch/arm/dev/atmel/usartat91.c
References Variables:	cts_sense	nut/arch/arm/dev/atmel/usartat91.c
	flow_control	nut/arch/arm/dev/atmel/usartat91.c
	rx_errors	nut/arch/arm/dev/atmel/usartat91.c
	tx_aframe	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartGetStopBits()

static uint8_t At91UsartGetStopBits ( void )

Local Function At91UsartInit()

static int At91UsartInit ( void )

Calls:	At91UsartSetSpeed()	nut/arch/arm/dev/atmel/usartat91.c
	NutRegisterSysIrqHandler()
References Functions:	At91UsartInterrupt()	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartInterrupt()

static void At91UsartInterrupt ( void* arg )

Calls:	At91UsartRxReady()	nut/arch/arm/dev/atmel/usartat91.c
	At91UsartTxEmpty()	nut/arch/arm/dev/atmel/usartat91.c
	At91UsartTxReady()	nut/arch/arm/dev/atmel/usartat91.c
Used in:	At91UsartInit()	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartRxReady()

static void At91UsartRxReady ( RINGBUF* rbf )

Calls:	NutSelectWakeupFromIrq()
Called by:	At91UsartInterrupt()	nut/arch/arm/dev/atmel/usartat91.c
References Variables:	flow_control	nut/arch/arm/dev/atmel/usartat91.c
	rx_errors	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartRxStart()

static void At91UsartRxStart ( void )

Calls:	NutSysIrqDisable(), NutSysIrqEnable()
References Variables:	flow_control	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartSetClockMode()

static int At91UsartSetClockMode ( uint8_t mode )

Local Function At91UsartSetDataBits()

static int At91UsartSetDataBits ( uint8_t bits )

Local Function At91UsartSetFlowControl()

static int At91UsartSetFlowControl ( uint32_t flags )

Calls:	NutSysIrqDisable(), NutSysIrqEnable()
References Variables:	cts_sense	nut/arch/arm/dev/atmel/usartat91.c
	flow_control	nut/arch/arm/dev/atmel/usartat91.c
	hdx_control	nut/arch/arm/dev/atmel/usartat91.c
	rts_control	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartSetParity()

static int At91UsartSetParity ( uint8_t mode )

Calls:	At91UsartDisable()	nut/arch/arm/dev/atmel/usartat91.c
	At91UsartEnable()	nut/arch/arm/dev/atmel/usartat91.c
	At91UsartGetParity()	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartSetSpeed()

static int At91UsartSetSpeed ( uint32_t rate )

Calls:	At91UsartDisable()	nut/arch/arm/dev/atmel/usartat91.c
	At91UsartEnable()	nut/arch/arm/dev/atmel/usartat91.c
	NutGetCpuClock()
Called by:	At91UsartInit()	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartSetStatus()

static int At91UsartSetStatus ( uint32_t flags )

Calls:	At91UsartGetStatus()	nut/arch/arm/dev/atmel/usartat91.c
	NutSysIrqDisable(), NutSysIrqEnable()
References Variables:	flow_control	nut/arch/arm/dev/atmel/usartat91.c
	rts_control	nut/arch/arm/dev/atmel/usartat91.c
	tx_aframe	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartSetStopBits()

static int At91UsartSetStopBits ( uint8_t bits )

Local Function At91UsartTxEmpty()

static void At91UsartTxEmpty ( RINGBUF* rbf )

Called by:	At91UsartInterrupt()	nut/arch/arm/dev/atmel/usartat91.c
References Variables:	hdx_control	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartTxReady()

static void At91UsartTxReady ( RINGBUF* rbf )

Calls:	NutSelectWakeupFromIrq()
Called by:	At91UsartInterrupt()	nut/arch/arm/dev/atmel/usartat91.c
References Variables:	flow_control	nut/arch/arm/dev/atmel/usartat91.c
	hdx_control	nut/arch/arm/dev/atmel/usartat91.c
	tx_aframe	nut/arch/arm/dev/atmel/usartat91.c

Local Function At91UsartTxStart()

static void At91UsartTxStart ( void )

References Variables:

hdx_control

nut/arch/arm/dev/atmel/usartat91.c