#include <asf.h>
#include <string.h>
#include <stdio.h>
#include "d_usartDMA.h"
#include "d_dma.h"
#include "usart.h"
#include "../../src/ISComm.h"
#include "board_opt.h"
#include "globals.h"

Include dependency graph for d_usartDMA.c:

Classes
struct	dmaBuffer_rx_t

struct	dmaBuffer_tx_t

struct	usart_info_t

struct	usartDMA_t

Macros
#define	ARG_0(A0, ...) A0

#define	ARG_1(A0, A1, ...) A1

#define	ARG_2(A0, A1, A2, ...) A2

#define	ARG_3(A0, A1, A2, A3, ...) A3

#define	ARG_4(A0, A1, A2, A3, A4, ...) A4

#define	ARGN(N, LIST) CONCAT(ARG_, N) LIST

#define	CONCAT(A, B) A ## B

#define	DMA_LLD_COUNT 32

#define	DMA_LLD_MASK (DMA_LLD_COUNT - 1)

Functions
	__attribute__ ((optimize("O0")))

	COMPILER_ALIGNED (32)

void	d_usartDMA_callback_cdc_disable (void)

bool	d_usartDMA_callback_cdc_enable (void)

void	d_usartDMA_callback_cdc_tx_empty_notify (void)

static const uint8_t *	getCurrentRxDmaAddress (dmaBuffer_rx_t *dma)

static const uint8_t *	getCurrentTxDmaAddress (dmaBuffer_tx_t *dma)

static dmaBuffer_rx_t *	getRxDma (uint32_t serialNum)

static dmaBuffer_tx_t *	getTxDma (uint32_t serialNum)

static int	serBufferInit (usartDMA_t *ser, int serialNumber)

static int	serEnable (int serialNum)

int	serFindCharacter (int serialNum, uint8_t ch)
	Returns number of characters in buffer before specified character. More...

int	serGetBaudRate (int serialNum)
	Read USART baudrate. Return value is the baudrate or -1 on failure. More...

int	serInit (int serialNum, uint32_t baudRate, sam_usart_opt_t options, uint32_t overrunStatus)
	Initialize serial port with specific USART/UART and DMA settings. If not NULL, the overrun status will have bits HDW_STATUS_ERR_COM_TX_LIMITED and HDW_STATUS_ERR_COM_RX_OVERRUN set during buffer limitation. More...

int	serRead (int serialNum, unsigned char *buf, int size)
	Read data on USART. Returns number of bytes read. With use of the PDCA ring buffer, buffer overrun may occur if bytes are received is greater than bytes read plus buffer size. More...

int	serRxClear (int serialNum, int size)
	Removes removes data from USART Rx buffer. Returns number of bytes removed. Length of -1 removes all data from USART buffer. More...

int	serRxFree (int serialNum)
	Returns number of bytes available in Rx buffer. More...

static int	serRxFreeDma (dmaBuffer_rx_t *dma)

int	serRxUsed (int serialNum)
	Returns number of bytes used in Rx buffer. More...

static int	serRxUsedDma (dmaBuffer_rx_t *dma)

int	serSetBaudRate (int serialNum, int baudrate)
	Change USART baudrate. 0 on success, -1 on failure. More...

int	serTxClear (int serialNum)
	Clear the entire Tx buffer. More...

int	serTxFree (int serialNum)
	Returns number of bytes available in Tx buffer. More...

static int	serTxFreeDma (dmaBuffer_tx_t *dma)

int	serTxUsed (int serialNum)
	Returns number of bytes used in Tx buffer. More...

static int	serTxUsedDma (dmaBuffer_tx_t *dma)

int	serWrite (int serialNum, const unsigned char *buf, int size)
	Write data on USART. Returns number of bytes written. More...

static int	setup_usart_info (usartDMA_t ser, int serialNumber, uint32_t baudRate, sam_usart_opt_t options)

void	UART0_Handler (void)

void	UART1_Handler (void)

void	UART2_Handler (void)

void	UART3_Handler (void)

void	UART4_Handler (void)

void	USART0_Handler (void)

void	USART1_Handler (void)

void	USART2_Handler (void)

int	validateBaudRate (unsigned int baudRate)
	Returns -1 if the baudrate is not a standard baudrate. More...

void	XDMAC_Handler (void)

Variables
port_monitor_helper_t	g_portMonitorHelper [MAX_NUMBER_SERIAL_PORTS] = {0}

static volatile usartDMA_t	g_usartDMA [MAX_NUMBER_SERIAL_PORTS]

static uint32_t *	s_overrunStatus =NULLPTR

static bool	usb_cdc_open = false

Macro Definition Documentation

◆ ARG_0

#define ARG_0	(	A0,
		...
	)	A0

Definition at line 98 of file d_usartDMA.c.

◆ ARG_1

#define ARG_1	(	A0,
		A1,
		...
	)	A1

Definition at line 99 of file d_usartDMA.c.

◆ ARG_2

#define ARG_2	(	A0,
		A1,
		A2,
		...
	)	A2

Definition at line 100 of file d_usartDMA.c.

◆ ARG_3

#define ARG_3	(	A0,
		A1,
		A2,
		A3,
		...
	)	A3

Definition at line 101 of file d_usartDMA.c.

◆ ARG_4

#define ARG_4	(	A0,
		A1,
		A2,
		A3,
		A4,
		...
	)	A4

Definition at line 102 of file d_usartDMA.c.

◆ ARGN

#define ARGN	(	N,
		LIST
	)	CONCAT(ARG_, N) LIST

Definition at line 97 of file d_usartDMA.c.

◆ CONCAT

#define CONCAT	(	A,
		B
	)	A ## B

Definition at line 96 of file d_usartDMA.c.

◆ DMA_LLD_COUNT

#define DMA_LLD_COUNT 32

Definition at line 32 of file d_usartDMA.c.

◆ DMA_LLD_MASK

#define DMA_LLD_MASK (DMA_LLD_COUNT - 1)

Definition at line 33 of file d_usartDMA.c.

Function Documentation

◆ attribute()

__attribute__ ( (optimize("O0")) )

Definition at line 1027 of file d_usartDMA.c.

◆ COMPILER_ALIGNED()

COMPILER_ALIGNED ( 32 )

Definition at line 150 of file d_usartDMA.c.

◆ d_usartDMA_callback_cdc_disable()

void d_usartDMA_callback_cdc_disable ( void )

Definition at line 166 of file d_usartDMA.c.

◆ d_usartDMA_callback_cdc_enable()

bool d_usartDMA_callback_cdc_enable ( void )

Definition at line 160 of file d_usartDMA.c.

◆ d_usartDMA_callback_cdc_tx_empty_notify()

void d_usartDMA_callback_cdc_tx_empty_notify ( void )

Definition at line 171 of file d_usartDMA.c.

◆ getCurrentRxDmaAddress()

static const uint8_t* getCurrentRxDmaAddress ( dmaBuffer_rx_t * dma )

inlinestatic

Definition at line 226 of file d_usartDMA.c.

◆ getCurrentTxDmaAddress()

static const uint8_t* getCurrentTxDmaAddress ( dmaBuffer_tx_t * dma )

inlinestatic

Definition at line 214 of file d_usartDMA.c.

◆ getRxDma()

static dmaBuffer_rx_t* getRxDma ( uint32_t serialNum )

inlinestatic

Definition at line 240 of file d_usartDMA.c.

◆ getTxDma()

static dmaBuffer_tx_t* getTxDma ( uint32_t serialNum )

inlinestatic

Definition at line 231 of file d_usartDMA.c.

◆ serBufferInit()

static int serBufferInit	(	usartDMA_t *	ser,
		int	serialNumber
	)

static

Definition at line 1341 of file d_usartDMA.c.

◆ serEnable()

static int serEnable ( int serialNum )

static

Definition at line 928 of file d_usartDMA.c.

◆ serFindCharacter()

int serFindCharacter	(	int	serialNum,
		uint8_t	ch
	)

Returns number of characters in buffer before specified character.

Definition at line 884 of file d_usartDMA.c.

◆ serGetBaudRate()

int serGetBaudRate ( int serialNum )

Read USART baudrate. Return value is the baudrate or -1 on failure.

Definition at line 1016 of file d_usartDMA.c.

◆ serInit()

int serInit	(	int	serialNum,
		uint32_t	baudRate,
		sam_usart_opt_t *	options,
		uint32_t *	overrunStatus
	)

Initialize serial port with specific USART/UART and DMA settings. If not NULL, the overrun status will have bits HDW_STATUS_ERR_COM_TX_LIMITED and HDW_STATUS_ERR_COM_RX_OVERRUN set during buffer limitation.

Definition at line 1560 of file d_usartDMA.c.

◆ serRead()

int serRead	(	int	serialNum,
		unsigned char *	buf,
		int	size
	)

Read data on USART. Returns number of bytes read. With use of the PDCA ring buffer, buffer overrun may occur if bytes are received is greater than bytes read plus buffer size.

Definition at line 782 of file d_usartDMA.c.

◆ serRxClear()

int serRxClear	(	int	serialNum,
		int	size
	)

Removes removes data from USART Rx buffer. Returns number of bytes removed. Length of -1 removes all data from USART buffer.

Definition at line 398 of file d_usartDMA.c.

◆ serRxFree()

int serRxFree ( int serialNum )

Returns number of bytes available in Rx buffer.

Definition at line 332 of file d_usartDMA.c.

◆ serRxFreeDma()

static int serRxFreeDma ( dmaBuffer_rx_t * dma )

inlinestatic

Definition at line 280 of file d_usartDMA.c.

◆ serRxUsed()

int serRxUsed ( int serialNum )

Returns number of bytes used in Rx buffer.

Definition at line 301 of file d_usartDMA.c.

◆ serRxUsedDma()

static int serRxUsedDma ( dmaBuffer_rx_t * dma )

inlinestatic

Definition at line 262 of file d_usartDMA.c.

◆ serSetBaudRate()

int serSetBaudRate	(	int	serialNum,
		int	baudrate
	)

Change USART baudrate. 0 on success, -1 on failure.

Definition at line 995 of file d_usartDMA.c.

◆ serTxClear()

int serTxClear ( int serialNum )

Clear the entire Tx buffer.

Clear the entire Tx buffer, returns how much was cleared.

Definition at line 344 of file d_usartDMA.c.

◆ serTxFree()

int serTxFree ( int serialNum )

Returns number of bytes available in Tx buffer.

Definition at line 313 of file d_usartDMA.c.

◆ serTxFreeDma()

static int serTxFreeDma ( dmaBuffer_tx_t * dma )

inlinestatic

Definition at line 275 of file d_usartDMA.c.

◆ serTxUsed()

int serTxUsed ( int serialNum )

Returns number of bytes used in Tx buffer.

Definition at line 289 of file d_usartDMA.c.

◆ serTxUsedDma()

static int serTxUsedDma ( dmaBuffer_tx_t * dma )

inlinestatic

Definition at line 249 of file d_usartDMA.c.

◆ serWrite()

int serWrite	(	int	serialNum,
		const unsigned char *	buf,
		int	size
	)

Write data on USART. Returns number of bytes written.

Definition at line 443 of file d_usartDMA.c.

◆ setup_usart_info()

static int setup_usart_info	(	usartDMA_t *	ser,
		int	serialNumber,
		uint32_t	baudRate,
		sam_usart_opt_t *	options
	)

static

Definition at line 1301 of file d_usartDMA.c.

◆ validateBaudRate()

int validateBaudRate ( unsigned int baudRate )

Returns -1 if the baudrate is not a standard baudrate.

Definition at line 980 of file d_usartDMA.c.

Variable Documentation

◆ g_portMonitorHelper

port_monitor_helper_t g_portMonitorHelper[MAX_NUMBER_SERIAL_PORTS] = {0}

Definition at line 153 of file d_usartDMA.c.

◆ g_usartDMA

volatile usartDMA_t g_usartDMA[MAX_NUMBER_SERIAL_PORTS]

static

Definition at line 150 of file d_usartDMA.c.

◆ s_overrunStatus

uint32_t* s_overrunStatus =NULLPTR

static

Definition at line 152 of file d_usartDMA.c.

◆ usb_cdc_open

bool usb_cdc_open = false

static

Definition at line 158 of file d_usartDMA.c.

Classes

Macros

Functions

Variables

Macro Definition Documentation

◆ ARG_0

◆ ARG_1

◆ ARG_2

◆ ARG_3

◆ ARG_4

◆ ARGN

◆ CONCAT

◆ DMA_LLD_COUNT

◆ DMA_LLD_MASK

Function Documentation

◆ __attribute__()

◆ COMPILER_ALIGNED()

◆ d_usartDMA_callback_cdc_disable()

◆ d_usartDMA_callback_cdc_enable()

◆ d_usartDMA_callback_cdc_tx_empty_notify()

◆ getCurrentRxDmaAddress()

◆ getCurrentTxDmaAddress()

◆ getRxDma()

◆ getTxDma()

◆ serBufferInit()

◆ serEnable()

◆ serFindCharacter()

◆ serGetBaudRate()

◆ serInit()

◆ serRead()

◆ serRxClear()

◆ serRxFree()

◆ serRxFreeDma()

◆ serRxUsed()

◆ serRxUsedDma()

◆ serSetBaudRate()

◆ serTxClear()

◆ serTxFree()

◆ serTxFreeDma()

◆ serTxUsed()

◆ serTxUsedDma()

◆ serWrite()

◆ setup_usart_info()

◆ validateBaudRate()

Variable Documentation

◆ g_portMonitorHelper

◆ g_usartDMA

◆ s_overrunStatus

◆ usb_cdc_open

◆ attribute()