loader.c File Reference

BrickOS task downloading. More...

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <sys/time.h>
#include <sys/types.h>
#include <signal.h>
#include <errno.h>
#include <sys/lnp.h>
#include <sys/lnp-logical.h>
#include "rcxtty.h"
#include "keepalive.h"
#include <lx.h>
#include <getopt.h>

Go to the source code of this file.

Defines
#define	MAX_DATA_CHUNK   0xf8
	maximum data bytes/packet for boot protocol
#define	XMIT_RETRIES   5
	number of packet transmit retries
#define	REPLY_TIMEOUT   750000
	timeout for reply
#define	BYTE_TIME   (1000*LNP_BYTE_TIME)
	time to transmit a byte.
#define	PROG_MIN   1
#define	PROG_MAX   8
#define	ADDR_MIN   0
#define	ADDR_MAX   15
#define	DEFAULT_DEST   0
#define	DEFAULT_PROGRAM   PROG_MIN
#define	DEFAULT_SRCPORT   0
#define	DEFAULT_PRIORITY   10
#define	HAVE_GETOPT_LONG   1
Enumerations
enum	packet_cmd_t {   CMDacknowledge, CMDdelete, CMDcreate, CMDoffsets,   CMDdata, CMDrun, CMDirmode, CMDsethost,   CMDlast }
Functions
void	io_handler (void)
int	lnp_logical_write (const void *data, size_t length)
int	lnp_assured_write (const unsigned char *data, unsigned char length, unsigned char dest, unsigned char srcport)
	send a LNP layer 0 packet of given length
void	LNPinit (const char *tty)
void	ahandler (const unsigned char *data, unsigned char len, unsigned char src)
void	lnp_download (const lx_t *lx)
int	main (int argc, char **argv)
	the user main()
Variables
const struct option	long_options []
volatile int	receivedAck = 0
volatile unsigned short	relocate_to = 0
unsigned int	rcxaddr
int	run_flag = 0
int	verbose_flag = 0
	display some diagnostics if non-zero
int	tty_usb = 0
int	pdelete_flag = 0
int	hostaddr_flag = 0

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Detailed Description

BrickOS task downloading.

Author:

Markus L. Noga <markus@noga.de>

Definition in file loader.c.

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Define Documentation

#define ADDR_MAX   15

Definition at line 94 of file loader.c. Referenced by main().

#define ADDR_MIN   0

Definition at line 93 of file loader.c.

#define BYTE_TIME   (1000*LNP_BYTE_TIME)

time to transmit a byte. Definition at line 88 of file loader.c.

#define DEFAULT_DEST   0

Definition at line 96 of file loader.c.

#define DEFAULT_PRIORITY   10

Definition at line 99 of file loader.c.

#define DEFAULT_PROGRAM   PROG_MIN

Definition at line 97 of file loader.c.

#define DEFAULT_SRCPORT   0

Definition at line 98 of file loader.c.

#define HAVE_GETOPT_LONG   1

Definition at line 116 of file loader.c.

#define MAX_DATA_CHUNK   0xf8

maximum data bytes/packet for boot protocol Definition at line 85 of file loader.c.

#define PROG_MAX   8

Definition at line 91 of file loader.c. Referenced by main().

#define PROG_MIN   1

Definition at line 90 of file loader.c.

#define REPLY_TIMEOUT   750000

timeout for reply Definition at line 87 of file loader.c. Referenced by io_handler(), and lnp_assured_write().

#define XMIT_RETRIES   5

number of packet transmit retries Definition at line 86 of file loader.c.

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Enumeration Type Documentation

enum packet_cmd_t

Enumeration values: CMDacknowledge  1: CMDdelete  1+ 1: b[nr] CMDcreate  1+12: b[nr] s[textsize] s[datasize] s[bsssize] s[stacksize] s[start] b[prio] CMDoffsets  1+ 7: b[nr] s[text] s[data] s[bss] CMDdata  1+>3: b[nr] s[offset] array[data] CMDrun  1+ 1: b[nr] CMDirmode  1+ 1: b[0=near/1=far] CMDsethost  1+ 1: b[hostaddr] CMDlast  ? Definition at line 101 of file loader.c.

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Function Documentation

void ahandler (  const unsigned char *  data, unsigned char  len, unsigned char  src )

Definition at line 342 of file loader.c. References receivedAck, and relocate_to. Referenced by main().

void io_handler (  void   )

Definition at line 238 of file loader.c. References NULL, rcxFD(), REPLY_TIMEOUT, and tty_usb. Referenced by lnp_assured_write().

int lnp_assured_write (  const unsigned char *  data, unsigned char  length, unsigned char  dest, unsigned char  srcport )

send a LNP layer 0 packet of given length Returns: 0 on success. Definition at line 189 of file loader.c. References io_handler(), NULL, rcxFD(), receivedAck, and REPLY_TIMEOUT. Referenced by lnp_download(), and main().

void lnp_download (  const lx_t *  lx  )

Definition at line 353 of file loader.c. References lx_t::data_size, exit(), lnp_assured_write(), memcpy(), rcxaddr, size_t, lx_t::text, and lx_t::text_size. Referenced by main().

int lnp_logical_write (  const void *  data, size_t  length )

blocking I/R write. ! return number of bytes written, or negative for error. Definition at line 162 of file loader.c. References keepaliveRenew(), mywrite(), NULL, rcxFD(), and tty_usb.

void LNPinit (  const char *  tty  )

Definition at line 291 of file loader.c. References exit(), keepaliveInit(), myperror(), rcxFD(), rcxInit(), and tty_usb. Referenced by main().

int main (  int  argc, char **  argv )

the user main() Definition at line 379 of file loader.c. References ADDR_MAX, ahandler(), lx_t::bss_size, lx_t::data_size, hostaddr_flag, lnp_assured_write(), lnp_download(), LNPinit(), long_options, lx_read(), lx_relocate(), lx_t::offset, pdelete_flag, PROG_MAX, rcxaddr, relocate_to, run_flag, lx_t::stack_size, lx_t::text_size, tty_usb, TTY_VARIABLE, and verbose_flag.

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Variable Documentation

int hostaddr_flag = 0

Definition at line 155 of file loader.c. Referenced by main().

const struct option long_options[] [static]

Initial value: { {"rcxaddr",required_argument,0,'r'}, {"program",required_argument,0,'p'}, {"delete", required_argument,0,'d'}, {"srcport",required_argument,0,'s'}, {"tty", required_argument,0,'t'}, {"irmode", required_argument,0,'i'}, {"node" , required_argument,0,'n'}, {"execute",no_argument ,0,'e'}, {"verbose",no_argument ,0,'v'}, {0 ,0 ,0,0 } } Definition at line 122 of file loader.c. Referenced by main().

int pdelete_flag = 0

Definition at line 154 of file loader.c. Referenced by main().

unsigned int rcxaddr

Initial value: DEFAULT_DEST prog = DEFAULT_PROGRAM srcport = DEFAULT_SRCPORT hostaddr = DEFAULT_DEST irmode = -1 Definition at line 145 of file loader.c. Referenced by lnp_download(), and main().

volatile int receivedAck = 0

Definition at line 141 of file loader.c. Referenced by ahandler(), and lnp_assured_write().

volatile unsigned short relocate_to = 0

Definition at line 143 of file loader.c. Referenced by ahandler(), and main().

int run_flag = 0

Definition at line 151 of file loader.c. Referenced by main().

int tty_usb = 0

Definition at line 153 of file loader.c. Referenced by io_handler(), lnp_logical_write(), LNPinit(), main(), nbread(), rcx_init(), rcx_send(), rcxInit(), and rx_flush().

int verbose_flag = 0

display some diagnostics if non-zero Definition at line 152 of file loader.c.

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