serialsource.c File Reference

#include <sys/types.h>
#include <sys/stat.h>
#include <termios.h>
#include <unistd.h>
#include <stdint.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <stdio.h>
#include "serialsource.h"
#include "OscopeMsg.h"

Go to the source code of this file.

Classes

struct  tos_header
struct  packet_list
struct  serial_source

Defines

#define DEBUG   1

Typedefs

typedef int bool

Enumerations

enum  {
  FALSE = 0, TRUE = 1, BUFSIZE = 256, MTU = 256,
  ACK_TIMEOUT = 1000000, SYNC_BYTE = 0x7e, ESCAPE_BYTE = 0x7d, P_ACK = 64,
  P_PACKET_ACK = 65, P_PACKET_NO_ACK = 66, P_UNKNOWN = 255
}

Functions

static tcflag_t parse_baudrate (int requested)
static void dump (const char *msg, const uint8_t *packet, int len)
static void message (serial_source src, serial_source_msg msg)
static int buggyread (serial_source src, void *buffer, int n)
serial_source open_serial_source (const char *device, int baud_rate, int non_blocking, void(*message)(serial_source_msg problem))
int serial_source_fd (serial_source src)
int close_serial_source (serial_source src)
static int source_wait (serial_source src, struct timeval *deadline)
static int source_write (serial_source src, const void *buffer, int count)
static void push_protocol_packet (serial_source src, uint8_t type, uint8_t *packet, uint8_t len)
static struct packet_listpop_protocol_packet (serial_source src, uint8_t type)
static bool packet_available (serial_source src, uint8_t type)
int serial_source_empty (serial_source src)
static uint16_t crc_byte (uint16_t crc, uint8_t b)
static uint16_t crc_packet (uint8_t *data, int len)
static int read_byte (serial_source src)
static void process_packet (serial_source src, uint8_t *packet, int len)
static int write_framed_packet (serial_source src, uint8_t packet_type, uint8_t first_byte, const uint8_t *packet, int count)
static void read_and_process (serial_source src)
void * read_serial_packet (serial_source src, int *len)
static void escape_add (serial_source src, uint8_t b)
static int init_escaper (serial_source src, int count)
static void terminate_escaper (serial_source src)
static void escape_byte (serial_source src, uint8_t b)
static void free_escaper (serial_source src)
static void add_timeval (struct timeval *tv, long us)
int write_serial_packet (serial_source src, const void *packet, int len)

Define Documentation

#define DEBUG   1

Definition at line 40 of file serialsource.c.


Typedef Documentation

typedef int bool

Definition at line 53 of file serialsource.c.


Enumeration Type Documentation

anonymous enum
Enumerator:
FALSE 
TRUE 
BUFSIZE 
MTU 
ACK_TIMEOUT 
SYNC_BYTE 
ESCAPE_BYTE 
P_ACK 
P_PACKET_ACK 
P_PACKET_NO_ACK 
P_UNKNOWN 

Definition at line 55 of file serialsource.c.


Function Documentation

static void add_timeval ( struct timeval *  tv,
long  us 
) [static]

Definition at line 810 of file serialsource.c.

Referenced by write_serial_packet().

static int buggyread ( serial_source  src,
void *  buffer,
int  n 
) [static]

Definition at line 223 of file serialsource.c.

References errno, serial_source::fd, and serial_source::non_blocking.

Referenced by read_byte().

int close_serial_source ( serial_source  src  ) 

Definition at line 323 of file serialsource.c.

References serial_source::fd.

static uint16_t crc_byte ( uint16_t  crc,
uint8_t  b 
) [static]

Definition at line 470 of file serialsource.c.

Referenced by crc_packet(), and escape_byte().

static uint16_t crc_packet ( uint8_t *  data,
int  len 
) [static]

Definition at line 486 of file serialsource.c.

References crc_byte().

Referenced by read_and_process().

static void dump ( const char *  msg,
const uint8_t *  packet,
int  len 
) [static]
static void escape_add ( serial_source  src,
uint8_t  b 
) [static]
static void escape_byte ( serial_source  src,
uint8_t  b 
) [static]
static void free_escaper ( serial_source  src  )  [static]

Definition at line 765 of file serialsource.c.

References serial_source::escaped, and serial_source::send.

Referenced by write_framed_packet().

static int init_escaper ( serial_source  src,
int  count 
) [static]
static void message ( serial_source  src,
serial_source_msg  msg 
) [static]
serial_source open_serial_source ( const char *  device,
int  baud_rate,
int  non_blocking,
void(*)(serial_source_msg problem)  message 
)
static bool packet_available ( serial_source  src,
uint8_t  type 
) [static]

Definition at line 449 of file serialsource.c.

References serial_source::queue, and serial_source::recv.

Referenced by serial_source_empty().

static tcflag_t parse_baudrate ( int  requested  )  [static]

Definition at line 101 of file serialsource.c.

Referenced by open_serial_source().

static struct packet_list* pop_protocol_packet ( serial_source  src,
uint8_t  type 
) [static, read]
static void process_packet ( serial_source  src,
uint8_t *  packet,
int  len 
) [static]
static void push_protocol_packet ( serial_source  src,
uint8_t  type,
uint8_t *  packet,
uint8_t  len 
) [static]
static void read_and_process ( serial_source  src  )  [static]
static int read_byte ( serial_source  src  )  [static]
void* read_serial_packet ( serial_source  src,
int *  len 
)
int serial_source_empty ( serial_source  src  ) 
int serial_source_fd ( serial_source  src  ) 

Definition at line 315 of file serialsource.c.

References serial_source::fd.

static int source_wait ( serial_source  src,
struct timeval *  deadline 
) [static]
static int source_write ( serial_source  src,
const void *  buffer,
int  count 
) [static]

Definition at line 382 of file serialsource.c.

References errno, serial_source::fd, message(), and msg_unix_error.

Referenced by write_framed_packet().

static void terminate_escaper ( serial_source  src  )  [static]

Definition at line 748 of file serialsource.c.

References escape_add(), and SYNC_BYTE.

Referenced by write_framed_packet().

static int write_framed_packet ( serial_source  src,
uint8_t  packet_type,
uint8_t  first_byte,
const uint8_t *  packet,
int  count 
) [static]
int write_serial_packet ( serial_source  src,
const void *  packet,
int  len 
)
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