X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Fvdpram.c;h=f585850050ebff8e70a2e593c7783e903d937465;hb=7746ae5070326c96905ab2594c2548ece91c0cb9;hp=07eca2a3b6ae1066f2a5bc79bf7ca5024ea227db;hpb=08b245dbe703255f255613e12d95cb033272d915;p=platform%2Fcore%2Ftelephony%2Ftel-plugin-vmodem.git

diff --git a/src/vdpram.c b/src/vdpram.c
index 07eca2a..f585850 100644
--- a/src/vdpram.c
+++ b/src/vdpram.c
@@ -1,538 +1,523 @@
-/*
- * tel-plugin-vmodem
- *
- * Copyright (c) 2013 Samsung Electronics Co. Ltd. All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <termios.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <sys/mman.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-
-#include <glib.h>
-
-#include <log.h>
-
-#include "vdpram.h"
-
-#ifndef TIOCMODG
-#  ifdef TIOCMGET
-#    define TIOCMODG TIOCMGET
-#  else
-#    ifdef MCGETA
-#      define TIOCMODG MCGETA
-#    endif
-#  endif
-#endif
-
-#ifndef TIOCMODS
-#  ifdef TIOCMSET
-#    define TIOCMODS TIOCMSET
-#  else
-#    ifdef MCSETA
-#      define TIOCMODS MCSETA
-#    endif
-#  endif
-#endif
-
-#define VDPRAM_OPEN_PATH		"/dev/vdpram0"
-
-/* DPRAM ioctls for DPRAM tty devices */
-#define IOC_MZ_MAGIC			('h')
-#define HN_DPRAM_PHONE_ON		_IO (IOC_MZ_MAGIC, 0xd0)
-#define HN_DPRAM_PHONE_OFF		_IO (IOC_MZ_MAGIC, 0xd1)
-#define HN_DPRAM_PHONE_GETSTATUS	_IOR(IOC_MZ_MAGIC, 0xd2, guint)
-
-/* Retry parameters */
-#define SLEEP_TIME_IN_SEC		0
-#define SLEEP_TIME_IN_MSEC		50
-
-#define MAX_RETRY_COUNT		10
-
-typedef struct tty_old_setting TtyOldSetting;
-
-struct tty_old_setting {
-	gint fd;
-	struct termios termiosVal;
-	TtyOldSetting *next;
-	TtyOldSetting *prev;
-};
-
-static TtyOldSetting *ttyold_head = NULL;
-
 /*
- * Insert TTY old settings
+ * tel-plugin-vmodem
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd. All rights reserved.
+ *
+ * Contact: Junhwan An <jh48.an@samsung.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
-static void __insert_tty_oldsetting(TtyOldSetting *me)
-{
-	dbg("Enter");
-
-	if (me == NULL)
-		return;
-
-	if (ttyold_head)
-		ttyold_head->prev = me;
-
-	me->next = ttyold_head;
-	me->prev = 0;
-	ttyold_head = me;
-}
-
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <termios.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#include <log.h>
+#include "legacy/TelUtility.h"
+#include "vdpram.h"
+#include "vdpram_dump.h"
+
+#ifndef TIOCMODG
+#  ifdef TIOCMGET
+#    define TIOCMODG TIOCMGET
+#  else
+#    ifdef MCGETA
+#      define TIOCMODG MCGETA
+#    endif
+#  endif
+#endif
+
+#ifndef TIOCMODS
+#  ifdef TIOCMSET
+#    define TIOCMODS TIOCMSET
+#  else
+#    ifdef MCSETA
+#      define TIOCMODS MCSETA
+#    endif
+#  endif
+#endif
+
+typedef struct _tty_old_setting_t{
+	int		fd;
+	struct	termios  termiosVal;
+	struct	_tty_old_setting_t *next;
+	struct	_tty_old_setting_t *prev;
+} tty_old_setting_t;
+
+#define VDPRAM_OPEN_PATH		"/dev/vdpram0"
+
+/* DPRAM ioctls for DPRAM tty devices */
+#define IOC_MZ_MAGIC		('h')
+#define HN_DPRAM_PHONE_ON			_IO (IOC_MZ_MAGIC, 0xd0)
+#define HN_DPRAM_PHONE_OFF			_IO (IOC_MZ_MAGIC, 0xd1)
+#define HN_DPRAM_PHONE_GETSTATUS	_IOR(IOC_MZ_MAGIC, 0xd2, unsigned int)
+
+static tty_old_setting_t *ttyold_head = NULL;
+
+/* static functions */
+static void __insert_tty_oldsetting(tty_old_setting_t *me)
+{
+	dbg("Function Enterence.");
+
+	if (me == NULL)
+		return;
+
+	if (ttyold_head)
+	    ttyold_head->prev = me;
+
+	me->next = ttyold_head;
+	me->prev = 0;
+	ttyold_head = me;
+}
+
+static tty_old_setting_t *__search_tty_oldsetting(int fd)
+{
+	tty_old_setting_t *tty = NULL;
+
+	dbg("Function Enterence.");
+
+	if (ttyold_head == NULL)
+		return NULL;
+
+	tty = ttyold_head;
+
+	do{
+		if (tty->fd == fd) {
+			dbg("oldsetting for inputted fd is found");
+			break;
+		}
+		else {
+			if (tty->next == NULL) {
+				dbg("No oldsetting is found");
+				tty = NULL;
+				break;
+			}
+			tty = tty->next;
+		}
+	}while(1);
+
+	return tty;
+}
+
+static void __remove_tty_oldsetting(tty_old_setting_t *me)
+{
+	dbg( "Function Enterence.");
+
+	if (me == NULL)
+		return;
+
+	if (me->prev)
+	    me->prev->next = me->next;
+	else
+	    ttyold_head = me->next;
+
+	if (me->next)
+	    me->next->prev = me->prev;
+}
+
+/* Set hardware flow control.
+*/
+static void __tty_sethwf(int fd, int on)
+{
+	struct termios tty;
+
+	dbg("Function Enterence.");
+
+	if (tcgetattr(fd, &tty))
+		err("__tty_sethwf: tcgetattr:");
+
+	if (on)
+	    tty.c_cflag |= CRTSCTS;
+	else
+	    tty.c_cflag &= ~CRTSCTS;
+
+	if (tcsetattr(fd, TCSANOW, &tty))
+		err("__tty_sethwf: tcsetattr:");
+}
+
 /*
- * Search TTY old settings
- */
-static TtyOldSetting *__search_tty_oldsetting(gint fd)
-{
-	TtyOldSetting *tty = ttyold_head;
-
-	dbg("Enter");
-
-	while (tty) {
-		if (tty->fd == fd) {
-			dbg("tty for fd [%d] found!!!", fd);
-			break;
-		}
-		tty = tty->next;
-	};
-
-	return tty;
-}
-
+* Set RTS line. Sometimes dropped. Linux specific?
+*/
+static int __tty_setrts(int fd)
+{
+	int mcs;
+
+	dbg("Function Enterence.");
+
+	if (-1 ==  ioctl(fd, TIOCMODG, &mcs))
+		err("icotl: TIOCMODG");
+
+	mcs |= TIOCM_RTS;
+
+	if (-1 == ioctl(fd, TIOCMODS, &mcs))
+		err("icotl: TIOCMODS");
+
+	return 0;
+}
+
 /*
- * Remove TTY old settings
+ * Set baudrate, parity and number of bits.
  */
-static void __remove_tty_oldsetting(TtyOldSetting *me)
-{
-	dbg("Enter");
-
-	if (me == NULL)
-		return;
-
-	if (me->prev)
-		me->prev->next = me->next;
-	else
-		ttyold_head = me->next;
-
-	if (me->next)
-		me->next->prev = me->prev;
-}
-
+static int __tty_setparms(int fd,
+	const char* baudr, const char* par,
+	const char* bits, const char* stop,
+	int hwf, int swf)
+{
+	int spd = -1;
+	int newbaud;
+	int bit = bits[0];
+	int stop_bit = stop[0];
+
+	struct termios tty;
+	tty_old_setting_t *old_setting = NULL;
+
+	dbg("Function Enterence.");
+
+	old_setting = calloc(sizeof(tty_old_setting_t), 1);
+
+	if (old_setting == NULL)
+		return TAPI_API_SYSTEM_OUT_OF_MEM;
+
+	old_setting->fd = fd;
+
+	if (tcgetattr(fd, &tty) < 0) {
+		free(old_setting);
+		return TAPI_API_TRANSPORT_LAYER_FAILURE;
+	}
+
+	if (tcgetattr(fd, &old_setting->termiosVal) < 0) {
+		free(old_setting);
+		return TAPI_API_TRANSPORT_LAYER_FAILURE;
+	}
+
+	__insert_tty_oldsetting(old_setting);
+
+	fflush(stdout);
+
+	/* We generate mark and space parity ourself. */
+	if (bit == '7' && (par[0] == 'M' || par[0] == 'S'))
+		bit = '8';
+
+	/* Check if 'baudr' is really a number */
+	if ((newbaud = (atol(baudr) / 100)) == 0 && baudr[0] != '0')
+		newbaud = -1;
+
+	switch(newbaud)
+	{
+		case 0:
+			spd = 0;
+			break;
+
+		case 3:
+			spd = B300;
+			break;
+
+		case 6:
+			spd = B600;
+			break;
+
+		case 12:
+			spd = B1200;
+			break;
+
+		case 24:
+			spd = B2400;
+			break;
+
+		case 48:
+			spd = B4800;
+			break;
+
+		case 96:
+			spd = B9600;
+			break;
+
+		case 192:
+			spd = B19200;
+			break;
+
+		case 384:
+			spd = B38400;
+			break;
+
+		case 576:
+			spd = B57600;
+			break;
+
+		case 1152:
+			spd = B115200;
+			break;
+
+		default:
+			err("invaid baud rate");
+			break;
+	}
+
+	if (spd != -1) {
+	    cfsetospeed(&tty, (speed_t) spd);
+	    cfsetispeed(&tty, (speed_t) spd);
+	}
+
+	switch(bit)
+	{
+	    case '5':
+	        tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS5;
+	        break;
+
+	    case '6':
+	        tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS6;
+	        break;
+
+	    case '7':
+	        tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS7;
+	        break;
+
+	    case '8':
+	    default:
+	        tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS8;
+	        break;
+	}
+
+	switch(stop_bit)
+	{
+	    case '1':
+	        tty.c_cflag &= ~CSTOPB;
+	        break;
+
+	    case '2':
+	    default:
+	        tty.c_cflag |= CSTOPB;
+	        break;
+	}
+
+	/* Set into raw, no echo mode */
+	tty.c_iflag = IGNBRK;
+	tty.c_lflag = 0;
+	tty.c_oflag = 0;
+	tty.c_cflag |= CLOCAL | CREAD;
+	tty.c_cc[VMIN] = 1;
+	tty.c_cc[VTIME] = 1;
+
+	if (swf)
+	    tty.c_iflag |= IXON | IXOFF;
+	else
+	    tty.c_iflag &= ~(IXON | IXOFF | IXANY);
+
+	tty.c_cflag &= ~(PARENB | PARODD);
+
+	if (par[0] == 'E')
+	    tty.c_cflag |= PARENB;
+	else if (par[0] == 'O')
+	    tty.c_cflag |= (PARENB | PARODD);
+
+	if (tcsetattr(fd, TCSANOW, &tty) < 0) {
+		free(old_setting);
+	    return TAPI_API_TRANSPORT_LAYER_FAILURE;
+	}
+
+	__tty_setrts(fd);
+	__tty_sethwf(fd, hwf);
+
+	return TAPI_API_SUCCESS;
+
+}
+
+static int __tty_close(int fd)
+{
+	tty_old_setting_t *old_setting = NULL;
+
+	dbg("Function Enterence.");
+
+	old_setting = __search_tty_oldsetting(fd);
+	if (old_setting == NULL)
+		return TAPI_API_SUCCESS;
+
+	if (tcsetattr(fd, TCSAFLUSH, &old_setting->termiosVal) < 0)	{
+		err("close failed");
+		return TAPI_API_TRANSPORT_LAYER_FAILURE;
+	}
+
+	__remove_tty_oldsetting(old_setting);
+
+	free(old_setting);
+
+	close(fd);
+
+	return TAPI_API_SUCCESS;
+}
+
 /*
- * Set hardware flow control
- */
-static void __tty_sethwf(gint fd, gint on)
-{
-	struct termios tty;
-
-	dbg("Enter");
-
-	if (tcgetattr(fd, &tty))
-		err("__tty_sethwf: tcgetattr:");
-
-	if (on == 1)
-		tty.c_cflag |= CRTSCTS;
-	else
-		tty.c_cflag &= ~CRTSCTS;
-
-	if (tcsetattr(fd, TCSANOW, &tty))
-		err("__tty_sethwf: tcsetattr:");
-}
-
-/*
- * Set RTS line. Sometimes dropped. Linux specific?
- */
-static gint __tty_setrts(gint fd)
-{
-	gint mcs;
-
-	dbg("Enter");
-
-	if (-1 ==  ioctl(fd, TIOCMODG, &mcs))
-		err("icotl: TIOCMODG");
-
-	mcs |= TIOCM_RTS;
-
-	if (-1 == ioctl(fd, TIOCMODS, &mcs))
-		err("icotl: TIOCMODS");
-
-	return 0;
-}
-
-/*
- * Set baudrate, parity and number of bits
- */
-static gboolean __tty_setparms(gint fd,
-	gchar *baudr, gchar *par, gchar *bits, gchar *stop, gint hwf, gint swf)
-{
-	gint spd = -1;
-	gint newbaud;
-	gint bit = bits[0];
-	gint stop_bit = stop[0];
-
-	struct termios tty;
-	TtyOldSetting *old_setting = NULL;
-
-	dbg("Enter");
-
-	old_setting = g_try_new0(TtyOldSetting, 1);
-
-	if (old_setting == NULL)
-		return FALSE;
-
-	old_setting->fd = fd;
-
-	if (tcgetattr(fd, &tty) < 0) {
-		g_free(old_setting);
-		return FALSE;
-	}
-
-	if (tcgetattr(fd, &old_setting->termiosVal) < 0) {
-		g_free(old_setting);
-		return FALSE;
-	}
-
-	__insert_tty_oldsetting(old_setting);
-
-	fflush(stdout);
-
-	/* We generate mark and space parity ourself. */
-	if (bit == '7' && (par[0] == 'M' || par[0] == 'S'))
-		bit = '8';
-
-	/* Check if 'baudr' is really a number */
-	if ((newbaud = (atol(baudr) / 100)) == 0 && baudr[0] != '0')
-		newbaud = -1;
-
-	switch (newbaud) {
-	case 0:
-		spd = 0;
-	break;
-
-	case 3:
-		spd = B300;
-	break;
-
-	case 6:
-		spd = B600;
-	break;
-
-	case 12:
-		spd = B1200;
-	break;
-
-	case 24:
-		spd = B2400;
-	break;
-
-	case 48:
-		spd = B4800;
-	break;
-
-	case 96:
-		spd = B9600;
-	break;
-
-	case 192:
-		spd = B19200;
-	break;
-
-	case 384:
-		spd = B38400;
-	break;
-
-	case 576:
-		spd = B57600;
-	break;
-
-	case 1152:
-		spd = B115200;
-	break;
-
-	default:
-		err("invaid baud rate");
-	break;
-	}
-
-	if (spd != -1) {
-		cfsetospeed(&tty, (speed_t) spd);
-		cfsetispeed(&tty, (speed_t) spd);
-	}
-
-	switch (bit) {
-	case '5':
-		tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS5;
-	break;
-
-	case '6':
-		tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS6;
-	break;
-
-	case '7':
-		tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS7;
-	break;
-
-	case '8':
-	default:
-		tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS8;
-	break;
-	}
-
-	switch (stop_bit) {
-	case '1':
-		tty.c_cflag &= ~CSTOPB;
-	break;
-
-	case '2':
-	default:
-		tty.c_cflag |= CSTOPB;
-	break;
-	}
-
-	/* Set into raw, no echo mode */
-	tty.c_iflag = IGNBRK;
-	tty.c_lflag = 0;
-	tty.c_oflag = 0;
-	tty.c_cflag |= CLOCAL | CREAD;
-	tty.c_cc[VMIN] = 1;
-	tty.c_cc[VTIME] = 1;
-
-	if (swf)
-		tty.c_iflag |= IXON | IXOFF;
-	else
-		tty.c_iflag &= ~(IXON | IXOFF | IXANY);
-
-	tty.c_cflag &= ~(PARENB | PARODD);
-
-	if (par[0] == 'E')
-		tty.c_cflag |= PARENB;
-	else if (par[0] == 'O')
-		tty.c_cflag |= (PARENB | PARODD);
-
-	if (tcsetattr(fd, TCSANOW, &tty) < 0) {
-		g_free(old_setting);
-		return FALSE;
-	}
-
-	__tty_setrts(fd);
-	__tty_sethwf(fd, hwf);
-
-	return TRUE;
-}
-
+* restore the old settings before close.
+*/
+int vdpram_close(int fd)
+{
+	int ret = TAPI_API_SUCCESS;
+
+	dbg("Function Enterence.");
+
+	ret = __tty_close(fd);
+
+	return ret;
+}
+
 /*
- * Close TTY Device
- */
-static gboolean __tty_close(gint fd)
-{
-	TtyOldSetting *old_setting = NULL;
-
-	dbg("Enter");
-
-	/* Get previous settings */
-	old_setting = __search_tty_oldsetting(fd);
-	if (old_setting == NULL) {
-		dbg("No previous settings found!!!");
-		return TRUE;
-	}
-
-	if (tcsetattr(fd, TCSAFLUSH, &old_setting->termiosVal) < 0)	{
-		err("Close failed");
-		return FALSE;
-	}
-
-	/* Remove the previous setting configured */
-	__remove_tty_oldsetting(old_setting);
-
-	/* Free memory */
-	g_free(old_setting);
-
-	/* Close fd */
-	close(fd);
-
-	return TRUE;
-}
-
-/*
- * Wait on select
- */
-static void __sleep(gint sec, gint msec)
+*	Open the vdpram fd.
+*/
+int vdpram_open (void)
 {
-	struct timeval tv;
+	int rv = -1;
+	int fd = -1;
+	int val = 0;
+	unsigned int cmd =0;
+
+	fd = open(VDPRAM_OPEN_PATH, O_RDWR);
+
+	if (fd < 0) {
+		err("#### Failed to open vdpram file: error no hex %x", errno);
+		return rv;
+	}
+	else
+		dbg("#### Success to open vdpram file. fd:%d, path:%s", fd, VDPRAM_OPEN_PATH);
+
+
+	if (__tty_setparms(fd, "115200", "N", "8", "1", 0, 0) != TAPI_API_SUCCESS) {
+		vdpram_close(fd);
+		return rv;
+	}
+	else
+		dbg("#### Success set tty vdpram params. fd:%d", fd);
+
+	/*TODO: No need to check Status. Delete*/
+	cmd = HN_DPRAM_PHONE_GETSTATUS;
+
+	if (ioctl(fd, cmd, &val) < 0) {
+		err("#### ioctl failed fd:%d, cmd:%lu, val:%d", fd,cmd,val);
+		vdpram_close(fd);
+		return rv;
+	}
+	else
+		dbg("#### ioctl Success fd:%d, cmd:%lu, val:%d", fd,cmd,val);
 
-	tv.tv_sec = sec;
-	tv.tv_usec = msec;
+	return fd;
 
-	select(0, NULL, NULL, NULL, &tv);
 }
 
 /*
- * Close the VDPRAM device
- */
-gboolean vdpram_close(gint fd)
-{
-	gint ret;
-
-	dbg("Enter");
-
-	/* Close VDPRAM Device */
-	ret = __tty_close(fd);
-
-	return ret;
-}
-
-/*
- * Open the VDPRAM device
- */
-gint vdpram_open (void)
-{
-	gint rv = -1;
-	gint fd = -1;
-	gint val = 0;
-	guint cmd =0;
-
-	dbg("Enter");
-
-	/* Open DPRAM device */
-	fd = open(VDPRAM_OPEN_PATH, O_RDWR);
-	if (fd < 0) {
-		err("Open VDPRAM file - [FAIL] Error: [%s]", strerror(errno));
-		return rv;
-	} else {
-		dbg("Open VDPRAM file - [SUCCESS] fd: [%d] path: [%s]",
-			fd, VDPRAM_OPEN_PATH);
-	}
-
-	/* Set device parameters */
-	if (__tty_setparms(fd, "115200", "N", "8", "1", 0, 0) != TRUE) {
-		err("Set TTY device parameters - [FAIL]");
-
-		/* Close VDPRAM Device */
-		(void)vdpram_close(fd);
-		return rv;
-	}
+*	power on the phone.
+*/
+int vdpram_poweron(int fd)
+{
+	int rv = -1;
+
+	if (ioctl(fd, HN_DPRAM_PHONE_ON, NULL) < 0) {
+		err("Phone Power On failed (fd:%d)", fd);
+		rv = 0;
+	}
 	else {
-		dbg("Set TTY device parameters - [SUCCESS]");
+		dbg("Phone Power On success (fd:%d)", fd);
+		rv = 1;
 	}
-
-	/* TODO: No need to check Status. Delete */
-	cmd = HN_DPRAM_PHONE_GETSTATUS;
-	if (ioctl(fd, cmd, &val) < 0) {
-		err("Get Phone status - [FAIL] fd: [d] cmd: [%d] val: [%d]",
-			fd, cmd, val);
-
-		/* Close Device */
-		(void)vdpram_close(fd);
-
-		return rv;
-	} else {
-		dbg("Get Phone status - [SUCCESS]");
-	}
-
-	return fd;
-}
-
-/*
- * Power ON the Phone
+	return rv;
+}
+
+ /*
+ *	Power Off the Phone.
  */
-gboolean vdpram_poweron(gint fd)
-{
-	if (ioctl(fd, HN_DPRAM_PHONE_ON, NULL) < 0) {
-		err("Phone Power ON [FAIL] - fd: [%d] Error: [%s]", fd, strerror(errno));
-		return FALSE;
-	}
-	else {
-		dbg("Phone Power ON [SUCCESS] - fd: [%d]", fd);
-		return TRUE;
-	}
-}
-
+int vdpram_poweroff(int fd)
+{
+	int rv;
+
+	if (ioctl(fd, HN_DPRAM_PHONE_OFF, NULL) < 0) {
+		err("Phone Power Off failed.");
+		rv = -1;
+	}
+	else {
+		dbg("Phone Power Off success.");
+		rv = 1;
+	}
+
+	return rv;
+}
+
 /*
- * Power OFF the Phone
- */
-gboolean vdpram_poweroff(gint fd)
-{
-	if (ioctl(fd, HN_DPRAM_PHONE_OFF, NULL) < 0) {
-		err("Phone Power OFF [FAIL] - fd: [%d] Error: [%s]", fd, strerror(errno));
-		return FALSE;
-	}
-	else {
-		dbg("Phone Power OFF [SUCCESS] - fd: [%d]", fd);
-		return TRUE;
-	}
-}
-
-/*
- * Read data from VDPRAM
- */
-gint vdpram_tty_read(gint fd, void *buf, size_t buf_len)
-{
-	gint actual = 0;
-
-	if ((actual = read(fd, buf, buf_len)) < 0) {
-		err("Read [FAIL] - fd: [%d] Error: [%s]", fd, strerror(errno));
-	}
-
-	return actual;
-}
-
-/*
- * Write data to VDPRAM
- */
-gint vdpram_tty_write(gint fd, void *buf, size_t buf_len)
-{
-	size_t actual = 0;
-	guint retry = 0;
-	gint ret;
-
-	while(actual < buf_len) {
-		/* Write to Device */
-		ret = write(fd, (guchar *)buf, buf_len - actual);
+*	Read data from vdpram.
+*/
+
+int vdpram_tty_read(int nFd, void* buf, size_t nbytes)
+{
+	int	actual = 0;
+
+	if ((actual = read(nFd, buf, nbytes)) < 0) {
+		dbg("[TRANSPORT DPRAM]read failed.");
+	}
+	vdpram_hex_dump(IPC_RX, actual, buf);
+
+	return actual;
+}
+
+static void __selectsleep(int sec,int msec)
+{
+    struct timeval tv;
+    tv.tv_sec=sec;
+    tv.tv_usec=msec;
+    select(0,NULL,NULL,NULL,&tv);
+    return;
+}
+
+/*
+*	Write data to vdpram.
+*/
+int vdpram_tty_write(int nFd, void* buf, size_t nbytes)
+{
+	int ret;
+	size_t actual = 0;
+	int	retry = 0;
+
+	do {
+		vdpram_hex_dump(IPC_TX, nbytes, buf);
+		ret = write(nFd, (unsigned char* )buf, nbytes - actual);
+
+		if ((ret < 0 && errno == EAGAIN) || (ret < 0 && errno == EBUSY)) {
+			err("write failed. retry.. ret[%d] with errno[%d] ",ret, errno);
+			__selectsleep(0,50);
+
+			if (retry == 10)
+				return 0;
+
+			retry = retry + 1;
+		    continue;
+		}
+
 		if (ret < 0) {
-			err("Write [FAIL] - fd: [%d] Error: [%s]",
-				fd, strerror(errno));
-
-			if ((errno == EAGAIN) || (errno == EBUSY)) {
-				/* Sleep for 50 msecs */
-				__sleep(SLEEP_TIME_IN_SEC, SLEEP_TIME_IN_MSEC);
-
-				if (retry == MAX_RETRY_COUNT) {
-					err("Maximum retries completed!!!");
-					return 0;
-				}
-
-				retry = retry + 1;
-				continue;
-			}
-
-			if (actual != buf_len)
-				err("Write [FAIL] - fd: [%d]", fd);
-
-			err("Write [FAIL] - Error: [%s]", strerror(errno));
-			return actual;
-		}
-
-		actual  += ret;
-		buf     += ret;
-		dbg("Write Actual bytes: [%d] Written bytes: [%d]", actual, ret);
-	};
-
-	return actual;
-}
+		    if (actual != nbytes)
+				err("write failed.ret[%d]",ret);
+
+			err("errno [%d]",errno);
+			return actual;
+		}
+
+		actual  += ret;
+		buf     += ret;
+
+	} while(actual < nbytes);
+
+	return actual;
+}
+/*	EOF	*/