* update to version 1.8.5 * add code to allow selection of features via menuconfig * add sound device backend for lantiq voip hardware

SVN-Revision: 25298

4 files changed, 1182 insertions, 0 deletions

diff --git a/package/pjsip/patches/000-aconf.patch b/package/pjsip/patches/000-aconf.patch
new file mode 100644
index 0000000000..96c519aea0
--- /dev/null
+++ b/package/pjsip/patches/000-aconf.patch
@@ -0,0 +1,42 @@
+--- a/aconfigure.ac
++++ b/aconfigure.ac
+@@ -48,7 +48,7 @@
+     CROSS_COMPILE=`echo ${CC} | sed 's/gcc//'`
+ fi
+ 
+-if test "$AR" = ""; then AR="${CROSS_COMPILE}ar rv"; fi
++AR="${CROSS_COMPILE}ar rv"
+ AC_SUBST(AR)
+ if test "$LD" = ""; then LD="$CC"; fi
+ AC_SUBST(LD)
+@@ -590,6 +590,15 @@
+ 		AC_MSG_RESULT([Checking if external sound is set... yes])
+ 	       fi]
+ 	      )
++
++AC_ARG_ENABLE(ltq_tapi,
++	      AC_HELP_STRING([--enable-ltq-tapi],
++			     [PJMEDIA will use ltq tapi backend]),
++	      [if test "$enable_ltq_tapi" = "yes"; then
++		[ac_pjmedia_snd=ltqtapi]
++		AC_MSG_RESULT([Checking if external sound is set... yes])
++	       fi]
++	      )
+ 
+ dnl # Include resampling small filter
+ AC_SUBST(ac_no_small_filter)
+--- a/pjmedia/build/os-auto.mak.in
++++ b/pjmedia/build/os-auto.mak.in
+@@ -118,4 +118,11 @@
+ export CFLAGS += -DPJMEDIA_AUDIO_DEV_HAS_PORTAUDIO=0 -DPJMEDIA_AUDIO_DEV_HAS_WMME=0
+ endif
+ 
+-
++#
++# Lantiq tapi backend
++#
++ifeq ($(AC_PJMEDIA_SND),ltqtapi)
++export CFLAGS += -DPJMEDIA_AUDIO_DEV_HAS_PORTAUDIO=0 -DPJMEDIA_AUDIO_DEV_HAS_WMME=0
++export PJMEDIA_AUDIODEV_OBJS += tapi_dev.o
++export CFLAGS += -DPJMEDIA_AUDIO_DEV_HAS_TAPI_DEVICE=1
++endif
diff --git a/package/pjsip/patches/100-pjsua_acc__snprintf.patch b/package/pjsip/patches/100-pjsua_acc__snprintf.patch
new file mode 100644
index 0000000000..cb347213d6
--- /dev/null
+++ b/package/pjsip/patches/100-pjsua_acc__snprintf.patch
@@ -0,0 +1,90 @@
+--- a/pjsip/src/pjsua-lib/pjsua_acc.c
++++ b/pjsip/src/pjsua-lib/pjsua_acc.c
+@@ -430,7 +430,7 @@
+ 		     "<sip:%s%.*s%s:%d%s>", 
+ 		     beginquote,
+ 		     (int)t->local_name.host.slen,
+-		     t->local_name.host.ptr,
++		     t->local_name.host.slen ? t->local_name.host.ptr : "",
+ 		     endquote,
+ 		     t->local_name.port,
+ 		     transport_param);
+@@ -1158,18 +1158,18 @@
+ 	len = pj_ansi_snprintf(tmp, PJSIP_MAX_URL_SIZE,
+ 			       "<sip:%.*s%s%s%.*s%s:%d;transport=%s%.*s>%.*s",
+ 			       (int)acc->user_part.slen,
+-			       acc->user_part.ptr,
++			       acc->user_part.slen ? acc->user_part.ptr : "",
+ 			       (acc->user_part.slen? "@" : ""),
+ 			       beginquote,
+ 			       (int)via_addr->slen,
+-			       via_addr->ptr,
++			       via_addr->slen ? via_addr->ptr : "",
+ 			       endquote,
+ 			       rport,
+ 			       tp->type_name,
+ 			       (int)acc->cfg.contact_uri_params.slen,
+-			       acc->cfg.contact_uri_params.ptr,
++			       acc->cfg.contact_uri_params.slen ? acc->cfg.contact_uri_params.ptr : "",
+ 			       (int)acc->cfg.contact_params.slen,
+-			       acc->cfg.contact_params.ptr);
++			       acc->cfg.contact_params.slen ? acc->cfg.contact_params.ptr : "");
+ 	if (len < 1) {
+ 	    PJ_LOG(1,(THIS_FILE, "URI too long"));
+ 	    pj_pool_release(pool);
+@@ -2233,22 +2233,22 @@
+     contact->slen = pj_ansi_snprintf(contact->ptr, PJSIP_MAX_URL_SIZE,
+ 				     "%.*s%s<%s:%.*s%s%s%.*s%s:%d%s%.*s>%.*s",
+ 				     (int)acc->display.slen,
+-				     acc->display.ptr,
++				     acc->display.slen ? acc->display.ptr : "",
+ 				     (acc->display.slen?" " : ""),
+ 				     (secure ? PJSUA_SECURE_SCHEME : "sip"),
+ 				     (int)acc->user_part.slen,
+-				     acc->user_part.ptr,
++				     acc->user_part.slen ? acc->user_part.ptr : "",
+ 				     (acc->user_part.slen?"@":""),
+ 				     beginquote,
+ 				     (int)local_addr.slen,
+-				     local_addr.ptr,
++				     local_addr.slen ? local_addr.ptr : "",
+ 				     endquote,
+ 				     local_port,
+ 				     transport_param,
+ 				     (int)acc->cfg.contact_uri_params.slen,
+-				     acc->cfg.contact_uri_params.ptr,
++				     acc->cfg.contact_uri_params.slen ? acc->cfg.contact_uri_params.ptr : "",
+ 				     (int)acc->cfg.contact_params.slen,
+-				     acc->cfg.contact_params.ptr);
++				     acc->cfg.contact_params.slen ? acc->cfg.contact_params.ptr : "");
+ 
+     return PJ_SUCCESS;
+ }
+@@ -2390,22 +2390,22 @@
+     contact->slen = pj_ansi_snprintf(contact->ptr, PJSIP_MAX_URL_SIZE,
+ 				     "%.*s%s<%s:%.*s%s%s%.*s%s:%d%s%.*s>%.*s",
+ 				     (int)acc->display.slen,
+-				     acc->display.ptr,
++				     acc->display.slen ? acc->display.ptr : "",
+ 				     (acc->display.slen?" " : ""),
+ 				     (secure ? PJSUA_SECURE_SCHEME : "sip"),
+ 				     (int)acc->user_part.slen,
+-				     acc->user_part.ptr,
++				     acc->user_part.slen ? acc->user_part.ptr : "",
+ 				     (acc->user_part.slen?"@":""),
+ 				     beginquote,
+ 				     (int)local_addr.slen,
+-				     local_addr.ptr,
++				     local_addr.slen ? local_addr.ptr : "",
+ 				     endquote,
+ 				     local_port,
+ 				     transport_param,
+ 				     (int)acc->cfg.contact_uri_params.slen,
+-				     acc->cfg.contact_uri_params.ptr,
++				     acc->cfg.contact_uri_params.slen ? acc->cfg.contact_uri_params.ptr : "",
+ 				     (int)acc->cfg.contact_params.slen,
+-				     acc->cfg.contact_params.ptr);
++				     acc->cfg.contact_params.slen ? acc->cfg.contact_params.ptr : "");
+ 
+     return PJ_SUCCESS;
+ }
diff --git a/package/pjsip/patches/200-pjmedia_tapi_audiodev.patch b/package/pjsip/patches/200-pjmedia_tapi_audiodev.patch
new file mode 100644
index 0000000000..dc5ff2d5d3
--- /dev/null
+++ b/package/pjsip/patches/200-pjmedia_tapi_audiodev.patch
@@ -0,0 +1,1027 @@
+--- /dev/null
++++ b/pjmedia/src/pjmedia-audiodev/tapi_dev.c
+@@ -0,0 +1,1024 @@
++/******************************************************************************
++
++                               Copyright (c) 2010
++                            Lantiq Deutschland GmbH
++                     Am Campeon 3; 85579 Neubiberg, Germany
++
++  For licensing information, see the file 'LICENSE' in the root folder of
++  this software module.
++
++******************************************************************************/
++#include <pjmedia-audiodev/audiodev_imp.h>
++#include <pjmedia/errno.h>
++#include <pj/assert.h>
++#include <pj/pool.h>
++#include <pj/log.h>
++#include <pj/os.h>
++
++/* Linux includes*/
++#include <stdio.h>
++#include <string.h>
++#include <stdlib.h>
++#include <ctype.h>
++#include <sys/stat.h> 
++#include <fcntl.h>
++#include <sys/types.h>
++#include <sys/ioctl.h>
++#include <sys/select.h>
++#include <sys/time.h>
++#include <unistd.h>
++
++#if PJMEDIA_AUDIO_DEV_HAS_TAPI_DEVICE
++
++/* TAPI includes*/
++#include "drv_tapi_io.h"
++#include "vmmc_io.h"
++
++/* Maximum 2 devices*/
++#define TAPI_AUDIO_DEV_NUM          (1)
++#define TAPI_AUDIO_MAX_DEV_NUM      (2)
++#define TAPI_BASE_NAME              "TAPI"
++#define TAPI_LL_DEV_BASE_PATH       "/dev/vmmc"
++#define TAPI_LL_DEV_FIRMWARE_NAME   "/lib/firmware/danube_firmware.bin" 
++
++#define TAPI_LL_DEV_SELECT_TIMEOUT_MS      (2000)
++#define TAPI_LL_DEV_MAX_PACKET_SIZE        (800)
++#define TAPI_LL_DEV_RTP_HEADER_SIZE_BYTE   (12)
++#define TAPI_LL_DEV_ENC_FRAME_LEN_MS       (20)
++#define TAPI_LL_DEV_ENC_SMPL_PER_SEC       (8000)
++#define TAPI_LL_DEV_ENC_BITS_PER_SMPLS     (16)
++#define TAPI_LL_DEV_ENC_SMPL_PER_FRAME     (160)
++#define TAPI_LL_DEV_ENC_BYTES_PER_FRAME    (TAPI_LL_DEV_ENC_SMPL_PER_FRAME * (TAPI_LL_DEV_ENC_BITS_PER_SMPLS / 8))
++
++
++#define FD_WIDTH_SET(fd, maxfd)   (maxfd) < (fd) ? (fd) : maxfd 
++
++#define THIS_FILE     "tapi_dev.c"
++
++#if 1
++#   define TRACE_(x)    PJ_LOG(1,x)
++#else
++#   define TRACE_(x)
++#endif
++
++typedef struct
++{
++   pj_int32_t dev_fd;
++   pj_int32_t ch_fd[TAPI_AUDIO_DEV_NUM];
++   pj_int8_t  data2phone_map[TAPI_AUDIO_DEV_NUM];
++   
++} tapi_ctx;
++
++
++/* TAPI factory */
++struct tapi_aud_factory
++{
++   pjmedia_aud_dev_factory  base;
++   pj_pool_t         *pool;
++   pj_pool_factory   *pf;
++
++   pj_uint32_t             dev_count;
++   pjmedia_aud_dev_info   *dev_info;
++
++   tapi_ctx   dev_ctx;
++};
++
++typedef struct tapi_aud_factory tapi_aud_factory_t;
++
++/*
++   Sound stream descriptor.
++**/
++struct tapi_aud_stream
++{
++   /* Base*/
++   pjmedia_aud_stream   base;      /**< Base class.  */
++   /* Pool*/
++   pj_pool_t            *pool;     /**< Memory pool.       */
++   /* Common settings.*/
++   pjmedia_aud_param    param;     /**< Stream param.  */
++   pjmedia_aud_rec_cb   rec_cb;    /**< Record callback.   */
++   pjmedia_aud_play_cb  play_cb;   /**< Playback callback. */
++   void                *user_data; /**< Application data.  */
++
++   pj_thread_desc       thread_desc;
++   pj_thread_t         *thread;
++   tapi_ctx            *dev_ctx;
++   pj_uint8_t           run_flag;
++   pj_timestamp         timestamp;
++};
++
++typedef struct tapi_aud_stream tapi_aud_stream_t;
++
++/* Factory prototypes */
++static pj_status_t factory_init(pjmedia_aud_dev_factory *f);
++static pj_status_t factory_destroy(pjmedia_aud_dev_factory *f);
++static unsigned    factory_get_dev_count(pjmedia_aud_dev_factory *f);
++static pj_status_t factory_get_dev_info(pjmedia_aud_dev_factory *f,
++          unsigned index,
++          pjmedia_aud_dev_info *info);
++static pj_status_t factory_default_param(pjmedia_aud_dev_factory *f,
++           unsigned index,
++           pjmedia_aud_param *param);
++static pj_status_t factory_create_stream(pjmedia_aud_dev_factory *f,
++           const pjmedia_aud_param *param,
++           pjmedia_aud_rec_cb rec_cb,
++           pjmedia_aud_play_cb play_cb,
++           void *user_data,
++           pjmedia_aud_stream **p_aud_strm);
++
++/* Stream prototypes */
++static pj_status_t stream_get_param(pjmedia_aud_stream *strm,
++          pjmedia_aud_param *param);
++static pj_status_t stream_get_cap(pjmedia_aud_stream *strm,
++              pjmedia_aud_dev_cap cap,
++              void *value);
++static pj_status_t stream_set_cap(pjmedia_aud_stream *strm,
++              pjmedia_aud_dev_cap cap,
++              const void *value);
++static pj_status_t stream_start(pjmedia_aud_stream *strm);
++static pj_status_t stream_stop(pjmedia_aud_stream *strm);
++static pj_status_t stream_destroy(pjmedia_aud_stream *strm);
++
++static pjmedia_aud_dev_factory_op tapi_fact_op =
++  {
++      &factory_init,
++      &factory_destroy,
++      &factory_get_dev_count,
++      &factory_get_dev_info,
++      &factory_default_param,
++      &factory_create_stream
++  };
++
++static pjmedia_aud_stream_op tapi_strm_op =
++{
++    &stream_get_param,
++    &stream_get_cap,
++    &stream_set_cap,
++    &stream_start,
++    &stream_stop,
++    &stream_destroy
++};
++
++static pj_int32_t tapi_dev_open(char* dev_path, const pj_int32_t ch_num)
++{
++   char devname[128] = {0};
++
++   pj_ansi_sprintf(devname,"%s%u%u", dev_path, 1, ch_num);
++
++   return open((const char*)devname, O_RDWR, 0644);
++}
++
++static pj_status_t tapi_dev_binary_buffer_create(
++                     const char *pPath,
++                     pj_uint8_t **ppBuf,
++                     pj_uint32_t *pBufSz)
++{
++   pj_status_t status = PJ_SUCCESS;
++   FILE *fd;
++   struct stat file_stat;
++
++   /* Open binary file for reading*/
++   fd = fopen(pPath, "rb");
++   if (fd == NULL) {
++      TRACE_((THIS_FILE, "ERROR -  binary file %s open failed!\n", pPath));
++      return PJ_EUNKNOWN;
++   }
++
++   /* Get file statistics*/
++   if (stat(pPath, &file_stat) != 0) {
++      TRACE_((THIS_FILE, "ERROR -  file %s statistics get failed!\n", pPath));
++      return PJ_EUNKNOWN;
++   }
++
++   *ppBuf = malloc(file_stat.st_size);
++   if (*ppBuf == NULL) {
++      TRACE_((THIS_FILE, "ERROR -  binary file %s memory allocation failed!\n", pPath));
++      status = PJ_EUNKNOWN;
++
++      goto on_exit;
++   }
++
++   if (fread (*ppBuf, sizeof(pj_uint8_t), file_stat.st_size, fd) <= 0) {
++      TRACE_((THIS_FILE, "ERROR - file %s read failed!\n", pPath));
++      status = PJ_EUNKNOWN;
++
++      goto on_exit;
++   }
++
++   *pBufSz = file_stat.st_size; 
++
++on_exit:
++   if (fd != NULL) {
++      fclose(fd);
++   }
++
++   if (*ppBuf != NULL && status != PJ_SUCCESS) {
++      free(*ppBuf);
++   }
++
++   return status;
++}
++
++static void tapi_dev_binary_buffer_delete(pj_uint8_t *pBuf)
++{
++   if (pBuf != NULL)
++      free(pBuf);
++}
++
++static pj_status_t tapi_dev_firmware_download(
++                     pj_int32_t fd,
++                     const char *pPath)
++{
++   pj_status_t status = PJ_SUCCESS;
++   pj_uint8_t *pFirmware = NULL;
++   pj_uint32_t binSz = 0;
++   VMMC_IO_INIT vmmc_io_init;
++
++   /* Create binary buffer*/
++   status = tapi_dev_binary_buffer_create(pPath, &pFirmware, &binSz);
++   if (status != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - binary buffer create failed!\n"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   /* Download Voice Firmware*/
++   memset(&vmmc_io_init, 0, sizeof(VMMC_IO_INIT));
++   vmmc_io_init.pPRAMfw   = pFirmware;
++   vmmc_io_init.pram_size = binSz;
++
++   status = ioctl(fd, FIO_FW_DOWNLOAD, &vmmc_io_init);
++   if (status != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR -  FIO_FW_DOWNLOAD ioctl failed!"));
++   }
++
++   /* Delete binary buffer*/
++   tapi_dev_binary_buffer_delete(pFirmware);
++
++   return status;
++}
++
++
++static pj_status_t tapi_dev_start(tapi_aud_factory_t *f)
++{
++   pj_status_t status = PJ_SUCCESS;
++   pj_uint8_t c;
++   IFX_TAPI_DEV_START_CFG_t tapistart;
++   IFX_TAPI_MAP_DATA_t datamap;
++   IFX_TAPI_ENC_CFG_t enc_cfg;
++   IFX_TAPI_LINE_VOLUME_t vol;
++
++   /* Open device*/
++   f->dev_ctx.dev_fd = tapi_dev_open(TAPI_LL_DEV_BASE_PATH, 0);
++
++   if (f->dev_ctx.dev_fd < 0) {
++      TRACE_((THIS_FILE, "ERROR - TAPI device open failed!"));
++      return PJ_EUNKNOWN;
++   }
++
++   for (c = 0; c < TAPI_AUDIO_DEV_NUM; c++) {
++      f->dev_ctx.ch_fd[c] = tapi_dev_open(TAPI_LL_DEV_BASE_PATH, TAPI_AUDIO_MAX_DEV_NUM - c);
++
++      if (f->dev_ctx.dev_fd < 0) {
++         TRACE_((THIS_FILE, "ERROR - TAPI channel%d open failed!", c));
++         return PJ_EUNKNOWN;
++      }
++      
++      f->dev_ctx.data2phone_map[c] = c & 0x1 ? 0 : 1;
++   }
++
++   status = tapi_dev_firmware_download(f->dev_ctx.dev_fd, TAPI_LL_DEV_FIRMWARE_NAME);
++   if (status != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - Voice Firmware Download failed!"));
++      return PJ_EUNKNOWN;
++   }
++
++   memset(&tapistart, 0x0, sizeof(IFX_TAPI_DEV_START_CFG_t));
++   tapistart.nMode = IFX_TAPI_INIT_MODE_VOICE_CODER;
++
++   /* Start TAPI*/
++   status = ioctl(f->dev_ctx.dev_fd, IFX_TAPI_DEV_START, &tapistart);
++   if (status != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - IFX_TAPI_DEV_START ioctl failed"));
++      return PJ_EUNKNOWN;
++   }
++
++
++   for (c = 0; c < TAPI_AUDIO_DEV_NUM; c++) {
++      /* Perform mapping*/
++      memset(&datamap, 0x0, sizeof(IFX_TAPI_MAP_DATA_t));
++      datamap.nDstCh  = f->dev_ctx.data2phone_map[c];
++      datamap.nChType = IFX_TAPI_MAP_TYPE_PHONE;
++
++      status = ioctl(f->dev_ctx.ch_fd[c], IFX_TAPI_MAP_DATA_ADD, &datamap);
++
++      if (status != PJ_SUCCESS) {
++         TRACE_((THIS_FILE, "ERROR - IFX_TAPI_MAP_DATA_ADD ioctl failed"));
++         return PJ_EUNKNOWN;
++      }
++
++      /* Set Line feed*/
++      status = ioctl(f->dev_ctx.ch_fd[c], IFX_TAPI_LINE_FEED_SET, IFX_TAPI_LINE_FEED_STANDBY);
++
++      if (status != PJ_SUCCESS) {
++         TRACE_((THIS_FILE, "ERROR - IFX_TAPI_LINE_FEED_SET ioctl failed"));
++         return PJ_EUNKNOWN;
++      }
++
++      /* Config encoder for linear stream*/
++      memset(&enc_cfg, 0x0, sizeof(IFX_TAPI_ENC_CFG_t));
++
++      enc_cfg.nFrameLen = IFX_TAPI_COD_LENGTH_20;
++      enc_cfg.nEncType  = IFX_TAPI_COD_TYPE_LIN16_8;
++
++      status = ioctl(f->dev_ctx.ch_fd[c], IFX_TAPI_ENC_CFG_SET, &enc_cfg);
++      if (status != PJ_SUCCESS) {
++         TRACE_((THIS_FILE, "ERROR - IFX_TAPI_ENC_CFG_SET ioctl failed"));
++         return PJ_EUNKNOWN;
++      }
++
++
++      /* Suppress TAPI volume, otherwise PJSIP starts autogeneration!!!*/
++      vol.nGainRx = -8;
++      vol.nGainTx = -8;
++
++      status = ioctl(f->dev_ctx.ch_fd[c], IFX_TAPI_PHONE_VOLUME_SET, &vol);
++      if (status != PJ_SUCCESS) {
++         TRACE_((THIS_FILE, "ERROR - IFX_TAPI_PHONE_VOLUME_SET ioctl failed"));
++         return PJ_EUNKNOWN;
++      }
++   }
++
++
++   return status;
++}
++
++static pj_status_t tapi_dev_stop(tapi_aud_factory_t *f)
++{
++   pj_status_t status = PJ_SUCCESS;
++   pj_uint8_t c;
++   
++   /* Stop TAPI device*/
++   if (ioctl(f->dev_ctx.dev_fd, IFX_TAPI_DEV_STOP, 0) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - IFX_TAPI_DEV_STOP ioctl failed"));
++      status = PJ_EUNKNOWN;
++   }
++
++   /* Close device FD*/
++   close(f->dev_ctx.dev_fd);
++
++   /* Close channel FD*/
++   for (c = TAPI_AUDIO_DEV_NUM; c > 0; c--) {
++      close(f->dev_ctx.ch_fd[TAPI_AUDIO_DEV_NUM-c]);
++   }
++
++
++   return status;
++}
++
++static pj_status_t tapi_dev_codec_control(pj_int32_t fd, pj_uint8_t start)
++{
++   if (ioctl(fd, start ? IFX_TAPI_ENC_START : IFX_TAPI_ENC_STOP, 0) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - IFX_TAPI_ENC_%s ioctl failed!",
++         start ? "START" : "STOP"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   if (ioctl(fd, start ? IFX_TAPI_DEC_START : IFX_TAPI_DEC_STOP, 0) != IFX_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - IFX_TAPI_DEC_%s ioctl failed!",
++         start ? "START" : "STOP"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   return PJ_SUCCESS;
++}
++
++static pj_status_t tapi_dev_event_ONHOOK(tapi_ctx *dev_ctx, pj_uint32_t dev_idx)
++{
++   PJ_LOG(1,(THIS_FILE, "TAPI: ONHOOK"));
++
++   if (ioctl(dev_ctx->ch_fd[dev_idx], IFX_TAPI_LINE_FEED_SET,
++               IFX_TAPI_LINE_FEED_STANDBY) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - IFX_TAPI_LINE_FEED_SET ioctl failed!"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   /* enc/dec stop*/
++   if (tapi_dev_codec_control(dev_ctx->ch_fd[dev_idx], 0) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - codec start failed!"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   return PJ_SUCCESS;
++}
++
++static pj_status_t tapi_dev_event_OFFHOOK(tapi_ctx *dev_ctx, pj_uint32_t dev_idx)
++{
++   PJ_LOG(1,(THIS_FILE, "TAPI: OFFHOOK"));
++
++   if (ioctl(dev_ctx->ch_fd[dev_idx], IFX_TAPI_LINE_FEED_SET,
++               IFX_TAPI_LINE_FEED_ACTIVE) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - IFX_TAPI_LINE_FEED_SET ioctl failed!"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   /* enc/dec stop*/
++   if (tapi_dev_codec_control(dev_ctx->ch_fd[dev_idx], 1) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - codec start failed!"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   return PJ_SUCCESS;
++}
++
++static pj_status_t tapi_dev_event_handler(
++                     tapi_aud_stream_t *stream)
++{
++   tapi_ctx *dev_ctx = stream->dev_ctx;
++   pj_uint32_t dev_idx = stream->param.rec_id;
++   pj_status_t status = PJ_SUCCESS;
++   IFX_TAPI_EVENT_t tapiEvent;
++
++   memset (&tapiEvent, 0, sizeof(tapiEvent));
++
++   tapiEvent.ch = dev_ctx->data2phone_map[dev_idx];
++
++   /* Get event*/
++   status = ioctl(dev_ctx->dev_fd, IFX_TAPI_EVENT_GET, &tapiEvent);
++
++   if ((status == PJ_SUCCESS) && (tapiEvent.id != IFX_TAPI_EVENT_NONE)) {
++      switch(tapiEvent.id) {
++         case IFX_TAPI_EVENT_FXS_ONHOOK:
++            status = tapi_dev_event_ONHOOK(dev_ctx, dev_idx);
++            break;
++         case IFX_TAPI_EVENT_FXS_OFFHOOK:
++            status = tapi_dev_event_OFFHOOK(dev_ctx, dev_idx);
++            break;
++         default:
++            break;
++      }
++   }
++
++   return status;
++}
++
++static pj_status_t tapi_dev_data_handler(
++                     tapi_aud_stream_t *stream)
++{
++   pj_status_t status = PJ_SUCCESS;
++   tapi_ctx *dev_ctx = stream->dev_ctx;
++   pj_uint32_t dev_idx = stream->param.rec_id;
++   pj_uint8_t buf_rec[TAPI_LL_DEV_ENC_BYTES_PER_FRAME + TAPI_LL_DEV_RTP_HEADER_SIZE_BYTE]={0};
++   pj_uint8_t buf_play[TAPI_LL_DEV_ENC_BYTES_PER_FRAME + TAPI_LL_DEV_RTP_HEADER_SIZE_BYTE]={0};
++   pjmedia_frame frame_rec, frame_play;
++   pj_int32_t ret;
++
++   /* Get data from driver*/
++   ret = read(dev_ctx->ch_fd[dev_idx], buf_rec, sizeof(buf_rec));
++   if (ret < 0) {
++      TRACE_((THIS_FILE, "ERROR - no data available from device!"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   if (ret > 0) {
++      frame_rec.type = PJMEDIA_FRAME_TYPE_AUDIO;
++      frame_rec.buf  = buf_rec + TAPI_LL_DEV_RTP_HEADER_SIZE_BYTE;
++      frame_rec.size = ret - TAPI_LL_DEV_RTP_HEADER_SIZE_BYTE;
++      frame_rec.timestamp.u64 = stream->timestamp.u64;
++
++      status = stream->rec_cb(stream->user_data, &frame_rec);
++      if (status != PJ_SUCCESS)
++      {
++        PJ_LOG(1, (THIS_FILE, "rec_cb() failed %d", status));
++      }
++
++      frame_play.type = PJMEDIA_FRAME_TYPE_AUDIO;
++      frame_play.buf  = buf_play + TAPI_LL_DEV_RTP_HEADER_SIZE_BYTE;
++      frame_play.size = TAPI_LL_DEV_ENC_BYTES_PER_FRAME;
++      frame_play.timestamp.u64 = stream->timestamp.u64;
++
++      status = (*stream->play_cb)(stream->user_data, &frame_play);
++      if (status != PJ_SUCCESS)
++      {
++         PJ_LOG(1, (THIS_FILE, "play_cb() failed %d", status));
++      }
++      else
++      {
++         memcpy(buf_play, buf_rec, TAPI_LL_DEV_RTP_HEADER_SIZE_BYTE);
++
++         ret = write(dev_ctx->ch_fd[dev_idx], buf_play, sizeof(buf_play));
++
++         if (ret < 0) {
++            PJ_LOG(1, (THIS_FILE, "ERROR - device data writing failed!"));
++            return PJ_EUNKNOWN;
++         }
++
++         if (ret == 0) {
++            PJ_LOG(1, (THIS_FILE, "ERROR - no data written to device!"));
++            return PJ_EUNKNOWN;
++         }
++      }
++
++      stream->timestamp.u64 += TAPI_LL_DEV_ENC_SMPL_PER_FRAME;
++   }
++
++   return PJ_SUCCESS;
++}
++
++/* TAPI capture and playback thread. */
++static int PJ_THREAD_FUNC tapi_dev_thread(void *arg)
++{
++   tapi_aud_stream_t *strm = (struct tapi_aud_stream*)arg;
++   tapi_ctx *dev_ctx = strm->dev_ctx;
++   fd_set rfds, trfds;
++   pj_uint32_t width = 0;
++   struct timeval tv;
++   pj_uint32_t sretval;
++   pj_uint32_t dev_idx;
++
++   PJ_LOG(1,(THIS_FILE, "TAPI: thread starting..."));
++
++   if (strm->param.rec_id != strm->param.play_id) {
++      PJ_LOG(1,(THIS_FILE, "TAPI: thread exit - incorrect play/rec IDs"));
++      return 0;
++   }
++
++   dev_idx = strm->param.rec_id;
++
++   FD_ZERO(&rfds);
++
++   FD_SET(dev_ctx->dev_fd, &rfds);
++   width = FD_WIDTH_SET(dev_ctx->dev_fd, width);
++
++   FD_SET(dev_ctx->ch_fd[dev_idx], &rfds);
++   width = FD_WIDTH_SET(dev_ctx->ch_fd[dev_idx], width);
++
++   tv.tv_sec = TAPI_LL_DEV_SELECT_TIMEOUT_MS / 1000;
++   tv.tv_usec = (TAPI_LL_DEV_SELECT_TIMEOUT_MS % 1000) * 1000; 
++
++   strm->run_flag = 1;
++
++   while(1)
++   {
++      /* Update the local file descriptor by the copy in the task parameter */
++      memcpy((void *) &trfds, (void*) &rfds, sizeof(fd_set));
++
++      sretval = select(width + 1, &trfds, NULL, NULL, &tv); 
++
++      if (!strm->run_flag) {
++         break;
++      }
++
++      /* error or timeout on select */
++      if (sretval <= 0) {
++         continue;
++      }
++
++      /* Check device control channel*/
++      if (FD_ISSET(dev_ctx->dev_fd, &trfds)) {
++         if (tapi_dev_event_handler(strm) != PJ_SUCCESS) {
++            PJ_LOG(1,(THIS_FILE, "TAPI: event hanldler failed!"));
++            break;
++         }
++      }
++
++      /* Check device data channel*/
++      if (FD_ISSET(dev_ctx->ch_fd[dev_idx], &trfds)) {
++         if (tapi_dev_data_handler(strm) != PJ_SUCCESS) {
++            PJ_LOG(1,(THIS_FILE, "TAPI: data hanldler failed!"));
++            break;
++         }
++      }
++   }
++
++   PJ_LOG(1,(THIS_FILE, "TAPI: thread stopping..."));
++
++   return 0;
++}
++
++/****************************************************************************
++ Factory operations
++ ****************************************************************************/
++
++/*  Init tapi audio driver. */
++pjmedia_aud_dev_factory* pjmedia_tapi_factory(pj_pool_factory *pf)
++{
++    struct tapi_aud_factory *f;
++    pj_pool_t *pool;
++
++    TRACE_((THIS_FILE, "pjmedia_tapi_factory()"));
++
++    pool = pj_pool_create(pf, "tapi", 512, 512, NULL);
++    f = PJ_POOL_ZALLOC_T(pool, struct tapi_aud_factory);
++    f->pf = pf;
++    f->pool = pool;
++    f->base.op = &tapi_fact_op;
++
++    return &f->base;
++}
++
++/* API: init factory */
++static pj_status_t factory_init(pjmedia_aud_dev_factory *f)
++{
++   struct tapi_aud_factory *af = (struct tapi_aud_factory*)f;
++   pj_uint8_t c;
++
++   TRACE_((THIS_FILE, "factory_init()"));
++
++   /* Enumerate sound devices */
++   af->dev_count = TAPI_AUDIO_DEV_NUM;
++
++   af->dev_info = (pjmedia_aud_dev_info*)
++         pj_pool_calloc(af->pool, af->dev_count, sizeof(pjmedia_aud_dev_info));
++
++   for (c = 0; c < af->dev_count; c++) {
++      pj_ansi_sprintf(af->dev_info[c].name,"%s_%02d", TAPI_BASE_NAME, c);
++
++      af->dev_info[c].input_count = af->dev_info[c].output_count = 1;
++      af->dev_info[c].default_samples_per_sec = TAPI_LL_DEV_ENC_SMPL_PER_SEC;
++      pj_ansi_strcpy(af->dev_info[c].driver, "/dev/vmmc");
++
++      af->dev_info[c].caps = PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING |
++                             PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY |
++                             PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY;
++
++      af->dev_info[c].routes = PJMEDIA_AUD_DEV_ROUTE_DEFAULT ;
++   }
++
++   /* Initialize TAPI device(s)*/
++   if (tapi_dev_start(af) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - TAPI device init failed!"));
++      return PJ_EUNKNOWN;
++   }
++
++   return PJ_SUCCESS;
++}
++
++/* API: destroy factory */
++static pj_status_t factory_destroy(pjmedia_aud_dev_factory *f)
++{
++   struct tapi_aud_factory *af = (struct tapi_aud_factory*)f;
++   pj_pool_t *pool;
++   pj_status_t status = PJ_SUCCESS;
++
++   TRACE_((THIS_FILE, "factory_destroy()"));
++
++   /* Stop TAPI device*/
++   if (tapi_dev_stop(f) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - TAPI device stop failed!"));
++      status = PJ_EUNKNOWN;
++   }
++
++   pool = af->pool;
++   af->pool = NULL;
++   pj_pool_release(pool);
++
++   return status;
++}
++
++/* API: get number of devices */
++static unsigned factory_get_dev_count(pjmedia_aud_dev_factory *f)
++{
++  struct tapi_aud_factory *af = (struct tapi_aud_factory*)f;
++  TRACE_((THIS_FILE, "factory_get_dev_count()"));
++
++  return af->dev_count;
++}
++
++/* API: get device info */
++static pj_status_t factory_get_dev_info(pjmedia_aud_dev_factory *f,
++          unsigned index,
++          pjmedia_aud_dev_info *info)
++{
++  struct tapi_aud_factory *af = (struct tapi_aud_factory*)f;
++
++  TRACE_((THIS_FILE, "factory_get_dev_info()"));
++  PJ_ASSERT_RETURN(index < af->dev_count, PJMEDIA_EAUD_INVDEV);
++
++  pj_memcpy(info, &af->dev_info[index], sizeof(*info));
++
++  return PJ_SUCCESS;
++}
++
++/* API: create default device parameter */
++static pj_status_t factory_default_param(pjmedia_aud_dev_factory *f,
++           unsigned index,
++           pjmedia_aud_param *param)
++{
++  struct tapi_aud_factory *af = (struct tapi_aud_factory*)f;
++  struct pjmedia_aud_dev_info *di = &af->dev_info[index];
++
++  TRACE_((THIS_FILE, "factory_default_param."));
++  PJ_ASSERT_RETURN(index < af->dev_count, PJMEDIA_EAUD_INVDEV);
++
++  pj_bzero(param, sizeof(*param));
++  if (di->input_count && di->output_count) {
++    param->dir = PJMEDIA_DIR_CAPTURE_PLAYBACK;
++    param->rec_id = index;
++    param->play_id = index;
++  } else if (di->input_count) {
++    param->dir = PJMEDIA_DIR_CAPTURE;
++    param->rec_id = index;
++    param->play_id = PJMEDIA_AUD_INVALID_DEV;
++  } else if (di->output_count) {
++    param->dir = PJMEDIA_DIR_PLAYBACK;
++    param->play_id = index;
++    param->rec_id = PJMEDIA_AUD_INVALID_DEV;
++  } else {
++    return PJMEDIA_EAUD_INVDEV;
++  }
++
++  param->clock_rate        = di->default_samples_per_sec;
++  param->channel_count     = 1;
++  param->samples_per_frame = TAPI_LL_DEV_ENC_SMPL_PER_FRAME;
++  param->bits_per_sample   = TAPI_LL_DEV_ENC_BITS_PER_SMPLS;
++  param->flags             = PJMEDIA_AUD_DEV_CAP_OUTPUT_ROUTE | di->caps;
++  param->output_route      = PJMEDIA_AUD_DEV_ROUTE_DEFAULT;
++
++  return PJ_SUCCESS;
++}
++
++/* API: create stream */
++static pj_status_t factory_create_stream(pjmedia_aud_dev_factory *f,
++           const pjmedia_aud_param *param,
++           pjmedia_aud_rec_cb rec_cb,
++           pjmedia_aud_play_cb play_cb,
++           void *user_data,
++           pjmedia_aud_stream **p_aud_strm)
++{
++   struct tapi_aud_factory *af = (struct tapi_aud_factory*)f;
++   pj_pool_t *pool;
++   struct tapi_aud_stream *strm;
++   pj_status_t status;
++
++   TRACE_((THIS_FILE, "factory_create_stream()"));
++
++   /* Can only support 16bits per sample */
++   PJ_ASSERT_RETURN(param->bits_per_sample == TAPI_LL_DEV_ENC_BITS_PER_SMPLS, PJ_EINVAL);
++
++   PJ_ASSERT_RETURN(param->clock_rate == TAPI_LL_DEV_ENC_SMPL_PER_SEC, PJ_EINVAL);
++
++   PJ_ASSERT_RETURN(param->samples_per_frame == TAPI_LL_DEV_ENC_SMPL_PER_FRAME, PJ_EINVAL);
++
++   /* Can only support bidirectional stream */
++   PJ_ASSERT_RETURN(param->dir & PJMEDIA_DIR_CAPTURE_PLAYBACK, PJ_EINVAL);
++
++   /* Initialize our stream data */
++   pool = pj_pool_create(af->pf, "tapi-dev", 1000, 1000, NULL);
++   PJ_ASSERT_RETURN(pool != NULL, PJ_ENOMEM);
++
++   strm = PJ_POOL_ZALLOC_T(pool, struct tapi_aud_stream);
++   strm->pool      = pool;
++   strm->rec_cb    = rec_cb;
++   strm->play_cb   = play_cb;
++   strm->user_data = user_data;
++   pj_memcpy(&strm->param, param, sizeof(*param));
++
++   if ((strm->param.flags & PJMEDIA_AUD_DEV_CAP_EXT_FORMAT) == 0) {
++      strm->param.ext_fmt.id = PJMEDIA_FORMAT_L16;
++   }
++
++   strm->timestamp.u64 = 0;
++   strm->dev_ctx = &(af->dev_ctx);
++
++   /* Create and start the thread */
++   status = pj_thread_create(pool, "tapi", &tapi_dev_thread, strm, 0, 0, 
++			      &strm->thread);
++   if (status != PJ_SUCCESS) {
++      stream_destroy(&strm->base);
++      return status;
++   }
++
++   /* Done */
++   strm->base.op = &tapi_strm_op;
++   *p_aud_strm = &strm->base;
++
++   return PJ_SUCCESS;
++}
++
++/****************************************************************************
++ * Stream operations
++ */
++/* API: Get stream info. */
++static pj_status_t stream_get_param(pjmedia_aud_stream *s,
++                                    pjmedia_aud_param *pi)
++{
++  struct tapi_aud_stream *strm = (struct tapi_aud_stream*)s;
++
++  PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL);
++
++  pj_memcpy(pi, &strm->param, sizeof(*pi));
++  /* Update the volume setting */
++  if (stream_get_cap(s, PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING,
++        &pi->output_vol) == PJ_SUCCESS)
++  {
++    pi->flags |= PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING;
++  }
++
++  if (stream_get_cap(s, PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY,
++        &pi->output_latency_ms) == PJ_SUCCESS)
++  {
++    pi->flags |= PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY;
++  }
++
++  if (stream_get_cap(s, PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY,
++        &pi->input_latency_ms) == PJ_SUCCESS)
++  {
++    pi->flags |= PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY;
++  }
++
++  return PJ_SUCCESS;
++}
++
++/* API: get capability */
++static pj_status_t stream_get_cap(pjmedia_aud_stream *s,
++          pjmedia_aud_dev_cap cap,
++          void *pval)
++{
++  struct tapi_aud_stream *strm = (struct tapi_aud_stream*)s;
++#ifdef OLD_IMPL
++  OSStatus status = 0;
++  PJ_ASSERT_RETURN(strm && pval, PJ_EINVAL);
++
++  if (cap==PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING && strm->play_strm->queue)
++  {
++    Float32 vol;
++    status = AudioQueueGetParameter(strm->play_strm->queue,
++                                    kAudioQueueParam_Volume, &vol);
++    if (!status)
++    {
++      *(unsigned*)pval = (vol * 100);
++      return PJ_SUCCESS;
++    }
++  }
++  else if (cap==PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY && strm->play_strm->queue)
++  {
++    Float32 lat;
++    UInt32 size = sizeof(lat);
++    status = AudioSessionGetProperty(kAudioSessionProperty_CurrentHardwareOutputLatency,
++                                     &size, &lat);
++    if (!status)
++    {
++      *(unsigned*)pval = lat * 1000;
++      return PJ_SUCCESS;
++    }
++  }
++  else if (cap==PJMEDIA_AUD_DEV_CAP_OUTPUT_ROUTE && strm->play_strm->queue)
++  {
++    *(pjmedia_aud_dev_route*)pval = strm->param.output_route;
++    return PJ_SUCCESS;
++  }
++  else if (cap==PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY && strm->rec_strm->queue)
++  {
++    Float32 lat;
++    UInt32 size = sizeof(lat);
++    status = AudioSessionGetProperty(kAudioSessionProperty_CurrentHardwareInputLatency,
++                                     &size, &lat);
++    if (!status)
++    {
++      *(unsigned*)pval = lat * 1000;
++      return PJ_SUCCESS;
++    }
++  }
++
++  if (status)
++    PJ_LOG(1, (THIS_FILE, "AudioQueueGetParameter/AudioSessionGetProperty err %d", status));
++  return PJMEDIA_EAUD_INVCAP;
++#else
++  return PJ_SUCCESS;
++#endif
++}
++
++/* API: set capability */
++static pj_status_t stream_set_cap(pjmedia_aud_stream *s,
++          pjmedia_aud_dev_cap cap,
++          const void *pval)
++{
++  struct tapi_aud_stream *strm = (struct tapi_aud_stream*)s;
++#ifdef OLD_IMPL
++  OSStatus status = 0;
++  PJ_ASSERT_RETURN(strm && pval, PJ_EINVAL);
++
++  if (strm->play_strm->queue)
++    switch (cap)
++    {
++      case PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING:
++      {
++        /* Output volume setting */
++        unsigned vol = *(unsigned*)pval;
++        Float32 volume;
++
++        if (vol > 100)
++          vol = 100;
++        volume = vol / 100.;
++        status = AudioQueueSetParameter(strm->play_strm->queue, kAudioQueueParam_Volume,
++                                        volume);
++        if (!status)
++        {
++          PJ_LOG(1, (THIS_FILE, "AudioQueueSetParameter err %d", status));
++          return PJMEDIA_EAUD_SYSERR;
++        }
++        strm->param.output_vol = *(unsigned*)pval;
++        return PJ_SUCCESS;
++      }
++      case PJMEDIA_AUD_DEV_CAP_OUTPUT_ROUTE:
++      {
++        pjmedia_aud_dev_route r = *(const pjmedia_aud_dev_route*)pval;
++        UInt32 route = (r == PJMEDIA_AUD_DEV_ROUTE_LOUDSPEAKER ?
++            kAudioSessionOverrideAudioRoute_Speaker :
++            kAudioSessionOverrideAudioRoute_None);
++
++        status = AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,
++                                          sizeof(route), &route);
++        if (status)
++        {
++          PJ_LOG(1, (THIS_FILE, "AudioSessionSetProperty err %d", status));
++          return PJMEDIA_EAUD_SYSERR;
++        }
++        strm->param.output_route = r;
++        return PJ_SUCCESS;
++      }
++      default:
++        return PJMEDIA_EAUD_INVCAP;
++    }
++
++
++  return PJMEDIA_EAUD_INVCAP;
++#else
++  return PJ_SUCCESS;
++#endif
++}
++
++/* API: Start stream. */
++static pj_status_t stream_start(pjmedia_aud_stream *s)
++{
++   struct tapi_aud_stream *strm = (struct tapi_aud_stream*)s;
++   tapi_ctx *dev_ctx = strm->dev_ctx;
++   pj_uint32_t dev_idx;
++
++   TRACE_((THIS_FILE, "stream_start()"));
++
++   dev_idx = strm->param.rec_id;
++
++   return PJ_SUCCESS;
++}
++
++/* API: Stop stream. */
++static pj_status_t stream_stop(pjmedia_aud_stream *s)
++{
++   struct tapi_aud_stream *strm = (struct tapi_aud_stream*)s;
++   tapi_ctx *dev_ctx = strm->dev_ctx;
++   pj_uint32_t dev_idx;
++
++   TRACE_((THIS_FILE, "stream_stop()"));
++
++   dev_idx = strm->param.rec_id;
++
++   /* enc/dec stop*/
++   if (tapi_dev_codec_control(dev_ctx->ch_fd[dev_idx], 0) != PJ_SUCCESS) {
++      TRACE_((THIS_FILE, "ERROR - codec start failed!"));
++
++      return PJ_EUNKNOWN;
++   }
++
++   return PJ_SUCCESS;
++}
++
++/* API: Destroy stream. */
++static pj_status_t stream_destroy(pjmedia_aud_stream *s)
++{
++   pj_status_t state = PJ_SUCCESS;
++   struct tapi_aud_stream *stream = (struct tapi_aud_stream*)s;
++   pj_pool_t *pool;
++
++   PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL);
++
++   TRACE_((THIS_FILE, "stream_destroy()"));
++
++   stream_stop(stream);
++
++   stream->run_flag = 0;
++
++   /* Stop the stream thread */
++   if (stream->thread)
++   {
++      pj_thread_join(stream->thread);
++      pj_thread_destroy(stream->thread);
++      stream->thread = NULL;
++   }
++
++   pool = stream->pool;
++   pj_bzero(stream, sizeof(stream));
++   pj_pool_release(pool);
++
++   return state;
++}
++
++#endif /* PJMEDIA_AUDIO_DEV_HAS_TAPI_DEVICE */
diff --git a/package/pjsip/patches/210-pjmedia_audiodev.patch b/package/pjsip/patches/210-pjmedia_audiodev.patch
new file mode 100644
index 0000000000..8acba6ef45
--- /dev/null
+++ b/package/pjsip/patches/210-pjmedia_audiodev.patch
@@ -0,0 +1,23 @@
+--- a/pjmedia/src/pjmedia-audiodev/audiodev.c
++++ b/pjmedia/src/pjmedia-audiodev/audiodev.c
+@@ -98,6 +98,10 @@
+ pjmedia_aud_dev_factory* pjmedia_null_audio_factory(pj_pool_factory *pf);
+ #endif
+ 
++#if PJMEDIA_AUDIO_DEV_HAS_TAPI_DEVICE
++pjmedia_aud_dev_factory* pjmedia_tapi_factory(pj_pool_factory *pf);
++#endif
++
+ #define MAX_DRIVERS	16
+ #define MAX_DEVS	64
+ 
+@@ -404,6 +408,9 @@
+ #if PJMEDIA_AUDIO_DEV_HAS_NULL_AUDIO
+     aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_null_audio_factory;
+ #endif
++#if PJMEDIA_AUDIO_DEV_HAS_TAPI_DEVICE
++    aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_tapi_factory;
++#endif
+ 
+     /* Initialize each factory and build the device ID list */
+     for (i=0; i<aud_subsys.drv_cnt; ++i) {