dahdi-linux/drivers/dahdi/xpp/xpp_dahdi.h
Oron Peled d4868092bf xpp: PRI stability fixes
* We didn't handle proper E1/T1 transitions after device registration.

* Fix SPAN_REGISTERED(xpd):
  It now checks for DAHDI_FLAGBIT_REGISTERED as well, as this flag is
  set/clear by assign/unassign.

* From set_pri_proto():
  - Always free/allocate channels
  - Always call dahdi_init_span()

* Improve phonedev_cleanup() safety:
  - NULL pointers after free.
  - Zero number of channels at the end.

* Refactor channel allocation out of phonedev_init():
  - Into phonedev_alloc_channels()
  - Also called from xpd_init_span() to prevent duplicated logic.
  - And called from set_pri_proto() to prevent our bug.

Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
2014-02-05 20:19:08 +02:00

72 lines
2.8 KiB
C

#ifndef XPP_DAHDI_H
#define XPP_DAHDI_H
/*
* Written by Oron Peled <oron@actcom.co.il>
* Copyright (C) 2004-2006, Xorcom
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "xpd.h"
#include "xproto.h"
void xpd_set_spanname(xpd_t *xpd);
int xpd_dahdi_preregister(xpd_t *xpd, unsigned offset);
int xpd_dahdi_postregister(xpd_t *xpd);
void xpd_dahdi_preunregister(xpd_t *xpd);
void xpd_dahdi_postunregister(xpd_t *xpd);
int create_xpd(xbus_t *xbus, const xproto_table_t *proto_table, int unit,
int subunit, __u8 type, __u8 subtype, int subunits,
int subunit_ports, __u8 port_dir);
xpd_t *xpd_alloc(xbus_t *xbus, int unit, int subunit, int subtype, int subunits,
size_t privsize, const xproto_table_t *proto_table,
int channels);
void xpd_free(xpd_t *xpd);
void xpd_remove(xpd_t *xpd);
int phonedev_alloc_channels(xpd_t *xpd, int channels);
void update_xpd_status(xpd_t *xpd, int alarm_flag);
const char *xpp_echocan_name(const struct dahdi_chan *chan);
int xpp_echocan_create(struct dahdi_chan *chan, struct dahdi_echocanparams *ecp,
struct dahdi_echocanparam *p,
struct dahdi_echocan_state **ec);
void hookstate_changed(xpd_t *xpd, int pos, bool good);
int xpp_open(struct dahdi_chan *chan);
int xpp_close(struct dahdi_chan *chan);
int xpp_ioctl(struct dahdi_chan *chan, unsigned int cmd, unsigned long arg);
int xpp_hooksig(struct dahdi_chan *chan, enum dahdi_txsig txsig);
int xpp_maint(struct dahdi_span *span, int cmd);
int xpp_watchdog(struct dahdi_span *span, int cause);
void xpp_span_assigned(struct dahdi_span *span);
void report_bad_ioctl(const char *msg, xpd_t *xpd, int pos, unsigned int cmd);
int total_registered_spans(void);
void oht_pcm(xpd_t *xpd, int pos, bool pass);
void mark_offhook(xpd_t *xpd, int pos, bool to_offhook);
#define IS_OFFHOOK(xpd, pos) IS_SET((xpd)->phonedev.offhook_state, (pos))
void notify_rxsig(xpd_t *xpd, int pos, enum dahdi_rxsig rxsig);
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
extern struct proc_dir_entry *xpp_proc_toplevel;
#endif
#define SPAN_REGISTERED(xpd) (atomic_read(&PHONEDEV(xpd).dahdi_registered) && \
test_bit(DAHDI_FLAGBIT_REGISTERED, &PHONEDEV(xpd).span.flags))
#endif /* XPP_DAHDI_H */