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/* gprs_ms.h
*
* Copyright (C) 2015 by Sysmocom s.f.m.c. GmbH
* Author: Jacob Erlbeck <jerlbeck@sysmocom.de>
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#pragma once
struct gprs_rlcmac_tbf;
struct gprs_rlcmac_dl_tbf;
struct gprs_rlcmac_ul_tbf;
#include "cxx_linuxlist.h"
#include "llc.h"
extern "C" {
#include <osmocom/core/timer.h>
}
#include <stdint.h>
#include <stddef.h>
struct BTS;
class GprsMs {
public:
struct Callback {
virtual void ms_idle(class GprsMs *) = 0;
virtual void ms_active(class GprsMs *) = 0;
};
class Guard {
public:
Guard(GprsMs *ms);
~Guard();
private:
GprsMs * const m_ms;
};
GprsMs(BTS *bts, uint32_t tlli);
~GprsMs();
void set_callback(Callback *cb) {m_cb = cb;}
gprs_rlcmac_ul_tbf *ul_tbf() const {return m_ul_tbf;}
gprs_rlcmac_dl_tbf *dl_tbf() const {return m_dl_tbf;}
uint32_t tlli() const;
void set_tlli(uint32_t tlli);
bool confirm_tlli(uint32_t tlli);
bool check_tlli(uint32_t tlli);
const char *imsi() const;
void set_imsi(const char *imsi);
uint8_t ta() const;
void set_ta(uint8_t ta);
uint8_t ms_class() const;
void set_ms_class(uint8_t ms_class);
uint8_t current_cs_ul() const;
uint8_t current_cs_dl() const;
gprs_llc_queue *llc_queue();
const gprs_llc_queue *llc_queue() const;
void set_timeout(unsigned secs);
void attach_tbf(gprs_rlcmac_tbf *tbf);
void attach_ul_tbf(gprs_rlcmac_ul_tbf *tbf);
void attach_dl_tbf(gprs_rlcmac_dl_tbf *tbf);
void detach_tbf(gprs_rlcmac_tbf *tbf);
bool is_idle() const {return !m_ul_tbf && !m_dl_tbf && !m_ref;}
void* operator new(size_t num);
void operator delete(void* p);
LListHead<GprsMs>& list() {return this->m_list;}
const LListHead<GprsMs>& list() const {return this->m_list;}
/* internal use */
static void timeout(void *priv_);
protected:
void update_status();
GprsMs *ref();
void unref();
void start_timer();
void stop_timer();
private:
BTS *m_bts;
Callback * m_cb;
gprs_rlcmac_ul_tbf *m_ul_tbf;
gprs_rlcmac_dl_tbf *m_dl_tbf;
uint32_t m_tlli;
uint32_t m_new_ul_tlli;
uint32_t m_new_dl_tlli;
/* store IMSI for look-up and PCH retransmission */
char m_imsi[16];
uint8_t m_ta;
uint8_t m_ms_class;
/* current coding scheme */
uint8_t m_current_cs_ul;
uint8_t m_current_cs_dl;
gprs_llc_queue m_llc_queue;
bool m_is_idle;
int m_ref;
LListHead<GprsMs> m_list;
struct osmo_timer_list m_timer;
unsigned m_delay;
};
inline uint32_t GprsMs::tlli() const
{
return m_new_ul_tlli ? m_new_ul_tlli :
m_tlli ? m_tlli :
m_new_dl_tlli;
}
inline bool GprsMs::check_tlli(uint32_t tlli)
{
return tlli != 0 &&
(tlli == m_tlli || tlli == m_new_ul_tlli || tlli == m_new_dl_tlli);
}
inline const char *GprsMs::imsi() const
{
return m_imsi;
}
inline uint8_t GprsMs::ta() const
{
return m_ta;
}
inline uint8_t GprsMs::ms_class() const
{
return m_ms_class;
}
inline uint8_t GprsMs::current_cs_dl() const
{
return m_current_cs_dl;
}
inline uint8_t GprsMs::current_cs_ul() const
{
return m_current_cs_ul;
}
inline void GprsMs::set_timeout(unsigned secs)
{
m_delay = secs;
}
inline gprs_llc_queue *GprsMs::llc_queue()
{
return &m_llc_queue;
}
inline const gprs_llc_queue *GprsMs::llc_queue() const
{
return &m_llc_queue;
}
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