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|
/*__________________________________ linux-cmn.c ___________________________________*/
/* 1 2 3 4 5 6 7 8 */
/*34567890123456789012345678901234567890123456789012345678901234567890123456789012345678*/
/*******************************************|********************************************/
/*
* Copyright (c) 2007 Seiko Epson Corporation All rights reserved.
*
* Copyright protection claimed includes all forms and matters of
* copyrightable material and information now allowed by statutory or judicial
* law or hereinafter granted, including without limitation, material generated
* from the software programs which are displayed on the screen such as icons,
* screen display looks, etc.
*
*/
/*******************************************|********************************************/
/* */
/* Linux platform depend External Definitions */
/* */
/* Function Calls */
/* -------------------------- */
/* void* epsmpMemAlloc (size ); */
/* void epsmpMemFree (memblock ); */
/* EPS_INT32 epsmpSleep (time ); */
/* EPS_UINT32 epsmpGetTime (void ); */
/* EPS_INT32 epsmpLockSync (void ); */
/* EPS_INT32 epsmpUnlockSync (void ); */
/* */
/*******************************************|********************************************/
#if defined (unix) || (__unix)
/*------------------------------------ Includes -------------------------------------*/
/*******************************************|********************************************/
#include "epson-escpr-def.h"
#include "epson-escpr-err.h"
#include "linux_cmn.h"
#include <sys/times.h>
#include <unistd.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/time.h> /* struct timeval, select() */
/* ICANON, ECHO, TCSANOW, struct termios */
#include <termios.h> /* tcgetattr(), tcsetattr() */
#include <stdlib.h> /* atexit(), exit() */
#include <unistd.h> /* read() */
#include <stdio.h> /* printf() */
#include <pthread.h>
/*------------------------------ Local Grobal Variables -----------------------------*/
/*******************************************|********************************************/
static struct termios g_old_kbd_mode;
static pthread_mutex_t g_mutex;
/*---------------------------------- Local Functions ---------------------------------*/
/*******************************************|********************************************/
static void cooked(void);
static void raw(void);
/*-------------------------------- Function Declarations ----------------------------*/
/*******************************************|********************************************/
/*******************************************|********************************************/
/* Function name: epsmpMemAlloc() */
/* */
/* Arguments */
/* --------- */
/* Name: Type: Description: */
/* s size_t I: Number of bytes to allocate, in bytes. */
/* */
/* Return value: */
/* pointer to new buffer */
/* */
/* Description: */
/* Dynamically allocates a memory buffer. */
/* */
/*******************************************|********************************************/
void* epsmpMemAlloc(
size_t s
){
return malloc(s);
}
/*******************************************|********************************************/
/* Function name: epsmpMemFree() */
/* */
/* Arguments */
/* --------- */
/* Name: Type: Description: */
/* p void* I: Block of memory to free. */
/* */
/* Return value: */
/* N/A */
/* */
/* Description: */
/* Frees an allocated block of memory allocated in the xxxMemAlloc () function. */
/* */
/*******************************************|********************************************/
void epsmpMemFree(
void* p
){
free(p);
}
/*******************************************|********************************************/
/* Function name: epsmpSleep() */
/* */
/* Arguments */
/* --------- */
/* Name: Type: Description: */
/* t void* I: Interval (specified in microseconds) */
/* */
/* Return value: */
/* 0 - Success */
/* -1 - Failure */
/* */
/* Description: */
/* Pauses execution in the current thread for a specified number of microseconds. */
/* */
/*******************************************|********************************************/
EPS_INT32 epsmpSleep(
EPS_UINT32 t
){
usleep( t);
return 0;
}
/*******************************************|********************************************/
/* Function name: epsmpGetTime() */
/* */
/* Arguments */
/* --------- */
/* Name: Type: Description: */
/* N/A */
/* */
/* Return value: */
/* System time */
/* */
/* Description: */
/* The time of the system is acquired. */
/* */
/*******************************************|********************************************/
EPS_UINT32 epsmpGetTime(void)
{
struct tms tm;
return (times(&tm)*10);
}
/*******************************************|********************************************/
/* Function name: epsmpGetLocalTime() */
/* */
/* Arguments */
/* --------- */
/* Name: Type: Description: */
/* epsTime EPS_LOCAL_TIME* O: time structure. */
/* */
/* Return value: */
/* 0 */
/* */
/* Description: */
/* get the system localtime. */
/* */
/*******************************************|********************************************/
EPS_UINT32 epsmpGetLocalTime(EPS_LOCAL_TIME *epsTime)
{
time_t now;
struct tm *t;
now = time(NULL);
t = localtime(&now);
epsTime->year = 1900;
epsTime->mon = 1;
epsTime->day = 1;
epsTime->hour = 1;
epsTime->min = 1;
epsTime->sec = 1;
return 0;
}
/*******************************************|********************************************/
/* Function name: epsmpLockSync() */
/* */
/* Arguments */
/* --------- */
/* Name: Type: Description: */
/* N/A */
/* */
/* Return value: */
/* 0 - Success */
/* -1 - Failure */
/* */
/* Description: */
/* Lock the synchronization object. */
/* */
/*******************************************|********************************************/
EPS_INT32 epsmpLockSync(void)
{
return pthread_mutex_lock(&g_mutex);
}
/*******************************************|********************************************/
/* Function name: epsmpUnlockSync() */
/* */
/* Arguments */
/* --------- */
/* Name: Type: Description: */
/* N/A */
/* */
/* Return value: */
/* 0 - Success */
/* -1 - Failure */
/* */
/* Description: */
/* UnLock the synchronization object. */
/* */
/*******************************************|********************************************/
EPS_INT32 epsmpUnlockSync(void)
{
return pthread_mutex_unlock(&g_mutex);
}
static void cooked(void)
{
tcsetattr(0, TCSANOW, &g_old_kbd_mode);
}
static void raw(void)
{
static char init;
struct termios new_kbd_mode;
if(init)
return;
tcgetattr(0, &g_old_kbd_mode);
memcpy(&new_kbd_mode, &g_old_kbd_mode, sizeof(struct termios));
new_kbd_mode.c_lflag &= ~(ICANON | ECHO);
new_kbd_mode.c_cc[VTIME] = 0;
new_kbd_mode.c_cc[VMIN] = 1;
tcsetattr(0, TCSANOW, &new_kbd_mode);
atexit(cooked);
init = 1;
}
EPS_INT32 _kbhit(void)
{
struct timeval timeout;
fd_set read_handles;
int status;
raw();
FD_ZERO(&read_handles);
FD_SET(0, &read_handles);
timeout.tv_sec = timeout.tv_usec = 0;
status = select(0 + 1, &read_handles, NULL, NULL, &timeout);
tcsetattr(0, TCSANOW, &g_old_kbd_mode);
if(status < 0)
{
printf("select() failed in kbhit()\n");
exit(1);
}
return status;
}
EPS_INT32 _getch(void)
{
unsigned char temp;
raw();
if(read(0, &temp, 1) != 1){
tcsetattr(0, TCSANOW, &g_old_kbd_mode);
return 0;
}
tcsetattr(0, TCSANOW, &g_old_kbd_mode);
return temp;
}
void _endthread(void)
{
pthread_exit(NULL);
}
void InitMutex(void)
{
pthread_mutex_init(&g_mutex, NULL); /*default (fast) mutex*/
}
void TermMutex(void)
{
pthread_mutex_destroy(&g_mutex);
}
#endif
/*__________________________________ linux-cmn.c ___________________________________*/
/*34567890123456789012345678901234567890123456789012345678901234567890123456789012345678*/
/* 1 2 3 4 5 6 7 8 */
/*******************************************|********************************************/
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%|%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
/***** End of File *** End of File *** End of File *** End of File *** End of File ******/
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%|%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
|
