#include <string.h>
#include "std.h"
#include <stdbool.h>
#include "LPC21xx.h"
#include "armVIC.h"
#include "mcu_periph/usb_serial.h"
#include <BOARD_CONFIG>
#include "lpcusb/usbapi.h"

Include dependency graph for usb_ser_hw.c:

Data Structures
struct	fifo_t

struct	TLineCoding

Macros
#define	USB_VIC_SLOT 10

#define	INT_IN_EP 0x81

#define	BULK_OUT_EP 0x05

#define	BULK_IN_EP 0x82

#define	MAX_PACKET_SIZE 64

#define	LE_WORD(x) ((x)&0xFF),((x)>>8)

#define	CS_INTERFACE 0x24

#define	CS_ENDPOINT 0x25

#define	SET_LINE_CODING 0x20

#define	GET_LINE_CODING 0x21

#define	SET_CONTROL_LINE_STATE 0x22

#define	VCOM_FIFO_SIZE 128

#define	EOF (-1)

#define	ASSERT(x)

Functions
static void	USBIntHandler (void)
	Interrupt handler. More...

static void	BulkOut (U8 bEP, U8 bEPStatus)
	Local function to handle incoming bulk data. More...

void	fifo_init (fifo_t fifo, U8 buf)

BOOL	fifo_put (fifo_t *fifo, U8 c)

BOOL	fifo_get (fifo_t fifo, U8 pc)

int	fifo_avail (fifo_t *fifo)

int	fifo_free (fifo_t *fifo)

int	VCOM_putchar (int c)
	Writes one character to VCOM port. More...

int	VCOM_getchar (void)
	Reads one character from VCOM port. More...

bool	VCOM_check_free_space (uint16_t len)
	Checks if buffer free in VCOM buffer. More...

int	VCOM_check_available (void)
	Checks if data available in VCOM buffer. More...

static void	BulkIn (U8 bEP, U8 bEPStatus)
	Local function to handle outgoing bulk data. More...

static BOOL	HandleClassRequest (TSetupPacket pSetup, int piLen, U8 **ppbData)
	Local function to handle the USB-CDC class requests. More...

static void	USBFrameHandler (U16 wFrame)

static int	usb_serial_check_free_space (struct usb_serial_periph p, long fd, uint16_t len)

static void	usb_serial_transmit (struct usb_serial_periph *p, long fd, uint8_t byte)

static void	usb_serial_transmit_buffer (struct usb_serial_periph p, long fd, uint8_t data, uint16_t len)

static void	usb_serial_send (struct usb_serial_periph *p, long fd)

void	VCOM_event (void)

void	VCOM_send_message (void)

static int	usb_serial_char_available (struct usb_serial_periph *p)

static uint8_t	usb_serial_getch (struct usb_serial_periph *p)

void	VCOM_init (void)

Variables
int	allow_line_coding = 0

static TLineCoding	LineCoding = {115200, 0, 0, 8}

static uint8_t	abBulkBuf [64]

static uint8_t	abClassReqData [8]

static uint8_t	txdata [VCOM_FIFO_SIZE]

static uint8_t	rxdata [VCOM_FIFO_SIZE]

static fifo_t	txfifo

static fifo_t	rxfifo

static bool	BulkOut_is_blocked = false

static const uint8_t	abDescriptors []

struct usb_serial_periph	usb_serial

Data Structure Documentation

◆ fifo_t

struct fifo_t

Definition at line 90 of file usb_ser_hw.c.

Data Fields
uint8_t *	buf
int	head
size_t	size
int	tail

◆ TLineCoding

struct TLineCoding

Definition at line 97 of file usb_ser_hw.c.

Data Fields
uint8_t	bCharFormat
uint8_t	bDataBits
uint8_t	bParityType
uint32_t	dwDTERate

Macro Definition Documentation

◆ ASSERT

#define ASSERT ( x )

Definition at line 88 of file usb_ser_hw.c.

◆ BULK_IN_EP

#define BULK_IN_EP 0x82

Definition at line 71 of file usb_ser_hw.c.

◆ BULK_OUT_EP

#define BULK_OUT_EP 0x05

Definition at line 70 of file usb_ser_hw.c.

◆ CS_ENDPOINT

#define CS_ENDPOINT 0x25

Definition at line 79 of file usb_ser_hw.c.

◆ CS_INTERFACE

#define CS_INTERFACE 0x24

Definition at line 78 of file usb_ser_hw.c.

◆ EOF

#define EOF (-1)

Definition at line 87 of file usb_ser_hw.c.

◆ GET_LINE_CODING

#define GET_LINE_CODING 0x21

Definition at line 82 of file usb_ser_hw.c.

◆ INT_IN_EP

#define INT_IN_EP 0x81

Definition at line 69 of file usb_ser_hw.c.

◆ LE_WORD

#define LE_WORD ( x ) ((x)&0xFF),((x)>>8)

Definition at line 75 of file usb_ser_hw.c.

◆ MAX_PACKET_SIZE

#define MAX_PACKET_SIZE 64

Definition at line 73 of file usb_ser_hw.c.

◆ SET_CONTROL_LINE_STATE

#define SET_CONTROL_LINE_STATE 0x22

Definition at line 83 of file usb_ser_hw.c.

◆ SET_LINE_CODING

#define SET_LINE_CODING 0x20

Definition at line 81 of file usb_ser_hw.c.

◆ USB_VIC_SLOT

#define USB_VIC_SLOT 10

Definition at line 66 of file usb_ser_hw.c.

◆ VCOM_FIFO_SIZE

#define VCOM_FIFO_SIZE 128

Definition at line 85 of file usb_ser_hw.c.

Function Documentation

◆ BulkIn()

static void BulkIn	(	U8	bEP,
		U8	bEPStatus
	)

static

Local function to handle outgoing bulk data.

Parameters

[in]	bEP
[in]	bEPStatus

Definition at line 461 of file usb_ser_hw.c.

References abBulkBuf, fifo_avail(), fifo_get(), MAX_PACKET_SIZE, and txfifo.

Referenced by VCOM_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ BulkOut()

static void BulkOut	(	U8	bEP,
		U8	bEPStatus
	)

static

Local function to handle incoming bulk data.

Parameters

[in]	bEP
[in]	bEPStatus

Definition at line 432 of file usb_ser_hw.c.

References abBulkBuf, ASSERT, BulkOut_is_blocked, FALSE, fifo_free(), fifo_put(), MAX_PACKET_SIZE, and rxfifo.

Referenced by VCOM_getchar(), and VCOM_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ fifo_avail()

static int fifo_avail ( fifo_t * fifo )

Definition at line 287 of file usb_ser_hw.c.

References fifo_t::head, fifo_t::tail, and VCOM_FIFO_SIZE.

Referenced by BulkIn(), fifo_free(), fifo_peek(), USBFrameHandler(), VCOM_check_available(), and VCOM_event().

Here is the caller graph for this function:

◆ fifo_free()

static int fifo_free ( fifo_t * fifo )

Definition at line 292 of file usb_ser_hw.c.

References fifo_avail(), and VCOM_FIFO_SIZE.

Referenced by BulkOut(), VCOM_check_free_space(), and VCOM_getchar().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ fifo_get()

BOOL fifo_get	(	fifo_t *	fifo,
		U8 *	pc
	)

Definition at line 270 of file usb_ser_hw.c.

References fifo_t::buf, FALSE, fifo_t::head, fifo_t::tail, TRUE, and VCOM_FIFO_SIZE.

Referenced by BulkIn(), VCOM_getchar(), and VCOM_send_message().

Here is the caller graph for this function:

◆ fifo_init()

void fifo_init	(	fifo_t *	fifo,
		U8 *	buf
	)

Definition at line 246 of file usb_ser_hw.c.

References fifo_t::buf, fifo_t::head, and fifo_t::tail.

Referenced by VCOM_init().

Here is the caller graph for this function:

◆ fifo_put()

BOOL fifo_put	(	fifo_t *	fifo,
		U8	c
	)

Definition at line 253 of file usb_ser_hw.c.

References fifo_t::buf, c(), FALSE, fifo_t::head, fifo_t::tail, TRUE, and VCOM_FIFO_SIZE.

Referenced by BulkOut(), cdcacm_data_rx_cb(), and VCOM_putchar().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ HandleClassRequest()

static BOOL HandleClassRequest	(	TSetupPacket *	pSetup,
		int *	piLen,
		U8 **	ppbData
	)

static

Local function to handle the USB-CDC class requests.

Parameters

[in]	pSetup
[out]	piLen
[out]	ppbData

Definition at line 493 of file usb_ser_hw.c.

References allow_line_coding, FALSE, GET_LINE_CODING, LineCoding, SET_CONTROL_LINE_STATE, SET_LINE_CODING, and TRUE.

Referenced by VCOM_init().

Here is the caller graph for this function:

◆ usb_serial_char_available()

static int usb_serial_char_available ( struct usb_serial_periph * p )

static

Definition at line 576 of file usb_ser_hw.c.

References VCOM_check_available().

Referenced by VCOM_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ usb_serial_check_free_space()

static int usb_serial_check_free_space	(	struct usb_serial_periph *	p,
		long *	fd,
		uint16_t	len
	)

static

Definition at line 550 of file usb_ser_hw.c.

References VCOM_check_free_space().

Referenced by VCOM_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ usb_serial_getch()

static uint8_t usb_serial_getch ( struct usb_serial_periph * p )

static

Definition at line 581 of file usb_ser_hw.c.

References VCOM_getchar().

Referenced by VCOM_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ usb_serial_send()

static void usb_serial_send	(	struct usb_serial_periph *	p,
		long	fd
	)

static

Definition at line 568 of file usb_ser_hw.c.

Referenced by VCOM_init().

Here is the caller graph for this function:

◆ usb_serial_transmit()

static void usb_serial_transmit	(	struct usb_serial_periph *	p,
		long	fd,
		uint8_t	byte
	)

static

Definition at line 555 of file usb_ser_hw.c.

References VCOM_putchar().

Referenced by main_periodic_task(), and VCOM_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ usb_serial_transmit_buffer()

static void usb_serial_transmit_buffer	(	struct usb_serial_periph *	p,
		long	fd,
		uint8_t *	data,
		uint16_t	len
	)

static

Definition at line 560 of file usb_ser_hw.c.

References VCOM_putchar().

Referenced by VCOM_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ USBFrameHandler()

static void USBFrameHandler ( U16 wFrame )

static

Definition at line 538 of file usb_ser_hw.c.

References fifo_avail(), and txfifo.

Referenced by VCOM_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ USBIntHandler()

static void USBIntHandler ( void )

static

Interrupt handler.

Simply calls the USB ISR, then signals end of interrupt to VIC

Definition at line 531 of file usb_ser_hw.c.

References VICVectAddr.

Referenced by VCOM_init().

Here is the caller graph for this function:

◆ VCOM_check_available()

int VCOM_check_available ( void )

Checks if data available in VCOM buffer.

Returns: character read, or EOF if character could not be read

Definition at line 420 of file usb_ser_hw.c.

Referenced by dfu_command_event(), event_usb_serial(), ReadUsbBuffer(), tunnel_event(), and usb_serial_char_available().

Here is the caller graph for this function:

◆ VCOM_check_free_space()

bool VCOM_check_free_space ( uint16_t len )

Checks if buffer free in VCOM buffer.

Returns: TRUE if len bytes are free

Definition at line 409 of file usb_ser_hw.c.

Referenced by dfu_command_event(), tunnel_event(), usb_serial_check_free_space(), and VCOM_putchar().

Here is the caller graph for this function:

◆ VCOM_event()

void VCOM_event ( void )

Definition at line 571 of file usb_ser_hw.c.

Referenced by event_usb_serial(), main(), and mcu_event().

Here is the caller graph for this function:

◆ VCOM_getchar()

int VCOM_getchar ( void )

Reads one character from VCOM port.

Returns: character read, or EOF if character could not be read

Definition at line 386 of file usb_ser_hw.c.

Referenced by dfu_command_event(), event_usb_serial(), ReadUsbBuffer(), tunnel_event(), and usb_serial_getch().

Here is the caller graph for this function:

◆ VCOM_init()

void VCOM_init ( void )

Definition at line 586 of file usb_ser_hw.c.

Referenced by init_usb_serial(), main(), and mcu_init().

Here is the caller graph for this function:

◆ VCOM_putchar()

int VCOM_putchar ( int c )

Writes one character to VCOM port.

Parameters

[in] c character to write

Returns: character written, or EOF if character could not be written

Definition at line 376 of file usb_ser_hw.c.

Referenced by cmd_execute(), periodic_usb_serial(), tunnel_event(), usb_serial_parse_packet(), usb_serial_transmit(), and usb_serial_transmit_buffer().

Here is the caller graph for this function:

◆ VCOM_send_message()

void VCOM_send_message ( void )

Definition at line 574 of file usb_ser_hw.c.

Referenced by cmd_execute(), usb_serial_parse_packet(), usb_serial_send(), VCOM_event(), and VCOM_putchar().

Here is the caller graph for this function:

Variable Documentation

◆ abBulkBuf

uint8_t abBulkBuf[64]

static

Definition at line 107 of file usb_ser_hw.c.

Referenced by BulkIn(), and BulkOut().

◆ abClassReqData

uint8_t abClassReqData[8]

static

Definition at line 108 of file usb_ser_hw.c.

Referenced by VCOM_init().

◆ abDescriptors

const uint8_t abDescriptors[]

static

Definition at line 133 of file usb_ser_hw.c.

Referenced by VCOM_init().

◆ allow_line_coding

int allow_line_coding = 0

Definition at line 104 of file usb_ser_hw.c.

Referenced by HandleClassRequest().

◆ BulkOut_is_blocked

bool BulkOut_is_blocked = false

static

Definition at line 116 of file usb_ser_hw.c.

Referenced by BulkOut(), and VCOM_getchar().

◆ LineCoding

TLineCoding LineCoding = {115200, 0, 0, 8}

static

Definition at line 106 of file usb_ser_hw.c.

Referenced by HandleClassRequest(), and VCOM_init().

◆ rxdata

uint8_t rxdata[VCOM_FIFO_SIZE]

static

Definition at line 111 of file usb_ser_hw.c.

Referenced by VCOM_init().

◆ rxfifo

fifo_t rxfifo

static

Definition at line 114 of file usb_ser_hw.c.

Referenced by BulkOut(), VCOM_check_available(), VCOM_getchar(), and VCOM_init().

◆ txdata

uint8_t txdata[VCOM_FIFO_SIZE]

static

Definition at line 110 of file usb_ser_hw.c.

Referenced by VCOM_init().

◆ txfifo

fifo_t txfifo

static

Definition at line 113 of file usb_ser_hw.c.

Referenced by BulkIn(), USBFrameHandler(), VCOM_check_free_space(), VCOM_init(), and VCOM_putchar().

◆ usb_serial

struct usb_serial_periph usb_serial

Definition at line 547 of file usb_ser_hw.c.

Referenced by VCOM_init().

Data Structures

Macros

Functions

Variables

Data Structure Documentation

◆ fifo_t

◆ TLineCoding

Macro Definition Documentation

◆ ASSERT

◆ BULK_IN_EP

◆ BULK_OUT_EP

◆ CS_ENDPOINT

◆ CS_INTERFACE

◆ EOF

◆ GET_LINE_CODING

◆ INT_IN_EP

◆ LE_WORD

◆ MAX_PACKET_SIZE

◆ SET_CONTROL_LINE_STATE

◆ SET_LINE_CODING

◆ USB_VIC_SLOT

◆ VCOM_FIFO_SIZE

Function Documentation

◆ BulkIn()

◆ BulkOut()

◆ fifo_avail()

◆ fifo_free()

◆ fifo_get()

◆ fifo_init()

◆ fifo_put()

◆ HandleClassRequest()

◆ usb_serial_char_available()

◆ usb_serial_check_free_space()

◆ usb_serial_getch()

◆ usb_serial_send()

◆ usb_serial_transmit()

◆ usb_serial_transmit_buffer()

◆ USBFrameHandler()

◆ USBIntHandler()

◆ VCOM_check_available()

◆ VCOM_check_free_space()

◆ VCOM_event()

◆ VCOM_getchar()

◆ VCOM_init()

◆ VCOM_putchar()

◆ VCOM_send_message()

Variable Documentation

◆ abBulkBuf

◆ abClassReqData

◆ abDescriptors

◆ allow_line_coding

◆ BulkOut_is_blocked

◆ LineCoding

◆ rxdata

◆ rxfifo

◆ txdata

◆ txfifo

◆ usb_serial