retronetworking
/
freeswitch
13
0
Fork 0
Code Pull Requests Releases Activity
freeswitch/libs/openzap/src/include/sangoma_tdm_api.h

322 lines
8.4 KiB
C
Raw Blame History

/*****************************************************************************
* sangoma_tdm_api.h Sangoma TDM API Portability functions
*
* Author(s): Anthony Minessale II <anthm@freeswitch.org>
* Nenad Corbic <ncorbic@sangoma.com>
* Michael Jerris <mike@jerris.com>
* David Rokhvarg <davidr@sangoma.com>
*
* Copyright: (c) 2006 Nenad Corbic <ncorbic@sangoma.com>
* Anthony Minessale II
* (c) 1984-2007 Sangoma Technologies Inc.
*
* ============================================================================
*/
#ifndef _SANGOMA_TDM_API_H
#define _SANGOMA_TDM_API_H
/* This entire block of defines and includes from this line, through #define FNAME_LEN probably dont belong here */
/* most of them probably belong in wanpipe_defines.h, then each header file listed included below properly included */
/* in the header files that depend on them, leaving only the include for wanpipe_tdm_api.h left in this file or */
/* possibly integrating the rest of this file diretly into wanpipe_tdm_api.h */
#ifndef __WINDOWS__
#if defined(WIN32) || defined(WIN64) || defined(_MSC_VER) || defined(_WIN32)
#define __WINDOWS__
#endif /* defined(WIN32) || defined(WIN64) || defined(_MSC_VER) || defined(_WIN32) */
#endif /* ndef __WINDOWS__ */
#if defined(__WINDOWS__)
#if defined(_MSC_VER)
/* disable some warnings caused by wanpipe headers that will need to be fixed in those headers */
#pragma warning(disable:4201 4214)
/* sang_api.h(74) : warning C4201: nonstandard extension used : nameless struct/union */
/* wanpipe_defines.h(219) : warning C4214: nonstandard extension used : bit field types other than int */
/* wanpipe_defines.h(220) : warning C4214: nonstandard extension used : bit field types other than int */
/* this will break for any compilers that are strict ansi or strict c99 */
/* The following definition for that struct should resolve this warning and work for 32 and 64 bit */
#if 0
struct iphdr {
#if defined(__LITTLE_ENDIAN_BITFIELD)
unsigned ihl:4,
version:4;
#elif defined (__BIG_ENDIAN_BITFIELD)
unsigned version:4,
ihl:4;
#else
# error "unknown byteorder!"
#endif
unsigned tos:8;
unsigned tot_len:16;
unsigned id:16;
unsigned frag_off:16;
__u8 ttl;
__u8 protocol;
__u16 check;
__u32 saddr;
__u32 daddr;
/*The options start here. */
};
#endif /* #if 0 */
#define __inline__ __inline
#endif /* defined(_MSC_VER) */
#include <windows.h>
/* do we like the name WP_INVALID_SOCKET or should it be changed? */
#define WP_INVALID_SOCKET INVALID_HANDLE_VALUE
#else /* defined(__WINDOWS__) */
#define WP_INVALID_SOCKET -1
#include <stropts.h>
#include <poll.h>
#include <sys/socket.h>
#endif
#include <wanpipe_defines.h>
#include <wanpipe_cfg.h>
#include <wanpipe_tdm_api.h>
#include <sdla_te1_pmc.h>
#ifdef __WINDOWS__
#include <sang_status_defines.h>
#include <sang_api.h>
#endif
#include <sdla_aft_te1.h>
#define FNAME_LEN 50
#if defined(__WINDOWS__)
/* This might be broken on windows, as POLL_EVENT_TELEPHONY seems to be commented out in sang_api.h.. it should be added to POLLPRI */
#define POLLPRI (POLL_EVENT_LINK_STATE | POLL_EVENT_LINK_CONNECT | POLL_EVENT_LINK_DISCONNECT)
#endif
/* return -1 for error, 0 for timeout or 1 for success. *flags is set to the poll evetns POLLIN | POLLOUT | POLLPRI based on the result of the poll */
/* on windows we actually have POLLPRI defined with several events, so we could theoretically poll */
/* for specific events. Is there any way to do this on *nix as well? */
/* a cross platform way to poll on an actual pollset (span and/or list of spans) will probably also be needed for analog */
/* so we can have one analong handler thread that will deal with all the idle analog channels for events */
/* the alternative would be for the driver to provide one socket for all of the oob events for all analog channels */
static __inline__ int tdmv_api_wait_socket(sng_fd_t fd, int timeout, int *flags)
{
#if defined(__WINDOWS__)
DWORD ln;
API_POLL_STRUCT api_poll;
memset(&api_poll, 0x00, sizeof(API_POLL_STRUCT));
api_poll.user_flags_bitmap = *flags;
api_poll.timeout = timeout;
if (!DeviceIoControl(
fd,
IoctlApiPoll,
(LPVOID)NULL,
0L,
(LPVOID)&api_poll,
sizeof(API_POLL_STRUCT),
(LPDWORD)(&ln),
(LPOVERLAPPED)NULL)) {
return -1;
}
*flags = 0;
switch(api_poll.operation_status)
{
case SANG_STATUS_RX_DATA_AVAILABLE:
break;
case SANG_STATUS_RX_DATA_TIMEOUT:
return 0;
default:
return -1;
}
if (api_poll.poll_events_bitmap == 0){
return -1;
}
if (api_poll.poll_events_bitmap & POLL_EVENT_TIMEOUT) {
return 0;
}
*flags = api_poll.poll_events_bitmap;
return 1;
#else
struct pollfd pfds[1];
int res;
memset(&pfds[0], 0, sizeof(pfds[0]));
pfds[0].fd = fd;
pfds[0].events = *flags;
res = poll(pfds, 1, timeout);
*flags = 0;
if (pfds[0].revents & POLLERR) {
res = -1;
}
if (res > 0) {
*flags = pfds[0].revents;
}
return res;
#endif
}
/* on windows right now, there is no way to specify if we want to read events here or not, we allways get them here */
/* we need some what to select if we are reading regular tdm msgs or events */
/* need to either have 2 functions, 1 for events, 1 for regural read, or a flag on this function to choose */
/* 2 functions preferred. Need implementation for the event function for both nix and windows that is threadsafe */
static __inline__ int tdmv_api_readmsg_tdm(sng_fd_t fd, void *hdrbuf, int hdrlen, void *databuf, int datalen)
{
/* What do we need to do here to avoid having to do all */
/* the memcpy's on windows and still maintain api compat with nix */
int rx_len=0;
#if defined(__WINDOWS__)
static RX_DATA_STRUCT rx_data;
api_header_t *pri;
wp_tdm_api_rx_hdr_t *tdm_api_rx_hdr;
wp_tdm_api_rx_hdr_t *user_buf = (wp_tdm_api_rx_hdr_t*)hdrbuf;
DWORD ln;
if (hdrlen != sizeof(wp_tdm_api_rx_hdr_t)){
return -1;
}
if (!DeviceIoControl(
fd,
IoctlReadCommand,
(LPVOID)NULL,
0L,
(LPVOID)&rx_data,
sizeof(RX_DATA_STRUCT),
(LPDWORD)(&ln),
(LPOVERLAPPED)NULL
)){
return -1;
}
pri = &rx_data.api_header;
tdm_api_rx_hdr = (wp_tdm_api_rx_hdr_t*)rx_data.data;
user_buf->wp_tdm_api_event_type = pri->operation_status;
switch(pri->operation_status)
{
case SANG_STATUS_RX_DATA_AVAILABLE:
if (pri->data_length > datalen){
break;
}
memcpy(databuf, rx_data.data, pri->data_length);
rx_len = pri->data_length;
break;
default:
break;
}
#else
struct msghdr msg;
struct iovec iov[2];
memset(&msg,0,sizeof(struct msghdr));
iov[0].iov_len=hdrlen;
iov[0].iov_base=hdrbuf;
iov[1].iov_len=datalen;
iov[1].iov_base=databuf;
msg.msg_iovlen=2;
msg.msg_iov=iov;
rx_len = read(fd,&msg,datalen+hdrlen);
if (rx_len <= sizeof(wp_tdm_api_rx_hdr_t)){
return -EINVAL;
}
rx_len-=sizeof(wp_tdm_api_rx_hdr_t);
#endif
return rx_len;
}
static __inline__ int tdmv_api_writemsg_tdm(sng_fd_t fd, void *hdrbuf, int hdrlen, void *databuf, unsigned short datalen)
{
/* What do we need to do here to avoid having to do all */
/* the memcpy's on windows and still maintain api compat with nix */
int bsent = 0;
#if defined(__WINDOWS__)
static TX_DATA_STRUCT local_tx_data;
api_header_t *pri;
DWORD ln;
/* Are these really not needed or used??? What about for nix?? */
(void)hdrbuf;
(void)hdrlen;
pri = &local_tx_data.api_header;
pri->data_length = datalen;
memcpy(local_tx_data.data, databuf, pri->data_length);
if (!DeviceIoControl(
fd,
IoctlWriteCommand,
(LPVOID)&local_tx_data,
(ULONG)sizeof(TX_DATA_STRUCT),
(LPVOID)&local_tx_data,
sizeof(TX_DATA_STRUCT),
(LPDWORD)(&ln),
(LPOVERLAPPED)NULL
)){
return -1;
}
if (local_tx_data.api_header.operation_status == SANG_STATUS_SUCCESS) {
bsent = datalen;
}
#else
struct msghdr msg;
struct iovec iov[2];
memset(&msg,0,sizeof(struct msghdr));
iov[0].iov_len = hdrlen;
iov[0].iov_base = hdrbuf;
iov[1].iov_len = datalen;
iov[1].iov_base = databuf;
msg.msg_iovlen = 2;
msg.msg_iov = iov;
bsent = write(fd, &msg, datalen + hdrlen);
if (bsent > 0){
bsent -= sizeof(wp_tdm_api_tx_hdr_t);
}
#endif
return bsent;
}
#endif /* _SANGOMA_TDM_API_H */
/* For Emacs:
* Local Variables:
* mode:c
* indent-tabs-mode:t
* tab-width:4
* c-basic-offset:4
* End:
* For VIM:
* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
*/
View Git Blame Copy Permalink