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#ifndef XPROTO_H
#define XPROTO_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 "xdefs.h"
#ifdef __KERNEL__
#include <linux/list.h>
#include <zaptel.h>
#endif
#define PROTO_TABLE(n) n ## _protocol_table
/*
* The LSB of the type number signifies:
* 0 - TO_PSTN
* 1 - TO_PHONE
*/
#define XPD_TYPE_FXS 3 // TO_PHONE
#define XPD_TYPE_FXO 4 // TO_PSTN
#define XPD_TYPE_NOMODULE 15
typedef byte xpd_type_t;
#define XPD_TYPE_PREFIX "xpd-type-"
#define MODULE_ALIAS_XPD(type) \
MODULE_ALIAS(XPD_TYPE_PREFIX __stringify(type))
#define PCM_CHUNKSIZE (CHANNELS_PERXPD * 8) /* samples of 8 bytes */
typedef struct xpd_addr {
byte unit:UNIT_BITS;
byte subunit:SUBUNIT_BITS;
} PACKED xpd_addr_t;
bool valid_xpd_addr(const xpd_addr_t *addr);
int xpd_addr2num(const xpd_addr_t *addr);
void xpd_set_addr(xpd_addr_t *addr, int xpd_num);
#define XPD_NUM(x) xpd_addr2num(&x)
#define MAX_XPACKET_DATALEN 100
#define XPROTO_NAME(card,op) card ## _ ## op
#define XPROTO_HANDLER(card,op) XPROTO_NAME(card,op ## _handler)
#define XPROTO_CALLER(card,op) XPROTO_NAME(card,op ## _send)
#define HANDLER_DEF(card,op) \
int XPROTO_HANDLER(card,op) ( \
xbus_t *xbus, \
xpd_t *xpd, \
const xproto_entry_t *cmd, \
xpacket_t *pack)
#define CALL_PROTO(card,op, ...) XPROTO_CALLER(card,op)( __VA_ARGS__ )
#define DECLARE_CMD(card,op, ...) \
int CALL_PROTO(card, op, xbus_t *xbus, xpd_t *xpd, ## __VA_ARGS__ )
#define HOSTCMD(card, op, ...) \
DECLARE_CMD(card, op, ## __VA_ARGS__ ); \
EXPORT_SYMBOL(XPROTO_CALLER(card, op)); \
DECLARE_CMD(card, op, ## __VA_ARGS__ )
#define RPACKET_NAME(card,op) XPROTO_NAME(RPACKET_ ## card, op)
#define RPACKET_TYPE(card,op) struct RPACKET_NAME(card, op)
#define DEF_RPACKET_DATA(card,op, ...) \
struct RPACKET_NAME(card,op) { \
byte opcode; \
xpd_addr_t addr; \
__VA_ARGS__ \
} PACKED
#define RPACKET_CAST(p,card,op) ((RPACKET_TYPE(card,op) *)p)
#define RPACKET_FIELD(p,card,op,field) (RPACKET_CAST(p,card,op)->field)
#define RPACKET_SIZE(card,op) sizeof(RPACKET_TYPE(card,op))
#define RPACKET_DATALEN(card,op) (RPACKET_SIZE(card,op) - sizeof(xpd_addr_t) - 1)
#define PACKET_LEN(p) \
((p)->datalen + sizeof(xpd_addr_t) + 1)
#define XENTRY(card,op) \
[ XPROTO_NAME(card,op) ] { \
.handler = XPROTO_HANDLER(card,op), \
.datalen = RPACKET_DATALEN(card,op), \
.name = #op, \
.table = &PROTO_TABLE(card) \
}
#define XPACKET_INIT(p, card, op) \
do { \
p->content.opcode = XPROTO_NAME(card,op); \
p->datalen = RPACKET_DATALEN(card,op); \
} while(0)
#define XPACKET_NEW(p, xbus, card, op, to) \
do { \
p = xbus->ops->packet_new(xbus, GFP_ATOMIC); \
if(!p) \
return -ENOMEM; \
XPACKET_INIT(p, card, op); \
xpd_set_addr(&p->content.addr, to); \
} while(0);
typedef struct xproto_entry xproto_entry_t;
typedef struct xproto_table xproto_table_t;
typedef int (*xproto_handler_t)(
xbus_t *xbus,
xpd_t *xpd,
const xproto_entry_t *cmd,
xpacket_t *pack);
const xproto_table_t *xproto_get(xpd_type_t cardtype);
void xproto_put(const xproto_table_t *xtable);
const xproto_entry_t *xproto_card_entry(const xproto_table_t *table, byte opcode);
xproto_handler_t xproto_card_handler(const xproto_table_t *table, byte opcode);
const xproto_entry_t *xproto_global_entry(byte opcode);
xproto_handler_t xproto_global_handler(byte opcode);
#define CALL_XMETHOD(name, xbus, xpd, ...) \
(xpd)->xops->name(xbus, xpd, ## __VA_ARGS__ )
struct xops {
xpd_t *(*card_new)(xbus_t *xbus, int xpd_num, const xproto_table_t *proto_table, byte revision);
int (*card_init)(xbus_t *xbus, xpd_t *xpd);
int (*card_remove)(xbus_t *xbus, xpd_t *xpd);
int (*card_tick)(xbus_t *xbus, xpd_t *xpd);
int (*card_zaptel_preregistration)(xpd_t *xpd, bool on);
int (*card_zaptel_postregistration)(xpd_t *xpd, bool on);
int (*card_hooksig)(xbus_t *xbus, xpd_t *xpd, int pos, zt_txsig_t txsig);
int (*card_ioctl)(xpd_t *xpd, int pos, unsigned int cmd, unsigned long arg);
int (*SYNC_SOURCE)(xbus_t *xbus, xpd_t *xpd, bool setit, bool is_master);
int (*PCM_WRITE)(xbus_t *xbus, xpd_t *xpd, xpp_line_t offhook, volatile byte *buf);
int (*CHAN_ENABLE)(xbus_t *xbus, xpd_t *xpd, xpp_line_t lines, bool on);
int (*CHAN_CID)(xbus_t *xbus, xpd_t *xpd, int pos);
int (*RING)(xbus_t *xbus, xpd_t *xpd, int pos, bool on);
int (*RELAY_OUT)(xbus_t *xbus, xpd_t *xpd, byte which, bool on);
};
struct xproto_entry {
xproto_handler_t handler;
int datalen;
const char *name;
xproto_table_t *table;
};
struct xproto_table {
struct module *owner;
xproto_entry_t entries[255]; /* Indexed by opcode */
xops_t xops;
xpd_type_t type;
const char *name;
bool (*packet_is_valid)(xpacket_t *pack);
void (*packet_dump)(xpacket_t *pack);
};
#include "card_global.h"
#include "card_fxs.h"
#include "card_fxo.h"
enum opcodes {
XPROTO_NAME(GLOBAL, NULL_REPLY) = 0xFE,
XPROTO_NAME(GLOBAL, DESC_REQ) = 0x04,
XPROTO_NAME(GLOBAL, DEV_DESC) = 0x05,
/**/
XPROTO_NAME(GLOBAL, PCM_WRITE) = 0x11,
XPROTO_NAME(GLOBAL, PCM_READ) = 0x12,
/**/
XPROTO_NAME(GLOBAL, SYNC_SOURCE) = 0x19,
XPROTO_NAME(GLOBAL, SYNC_REPLY) = 0x1A,
};
#define MEMBER(card,op) RPACKET_TYPE(card,op) RPACKET_NAME(card,op)
struct xpacket_raw {
byte opcode;
xpd_addr_t addr;
union {
MEMBER(GLOBAL, NULL_REPLY);
MEMBER(GLOBAL, DESC_REQ);
MEMBER(GLOBAL, DEV_DESC);
MEMBER(GLOBAL, PCM_WRITE);
MEMBER(GLOBAL, PCM_READ);
MEMBER(GLOBAL, SYNC_REPLY);
MEMBER(FXS, SIG_CHANGED);
MEMBER(FXS, SLIC_REPLY);
MEMBER(FXS, SLIC_WRITE);
MEMBER(FXO, SIG_CHANGED);
MEMBER(FXO, DAA_REPLY);
MEMBER(FXO, DAA_WRITE);
byte data[0];
};
} PACKED;
struct xpacket {
xpacket_raw_t content;
int datalen;
struct list_head list;
void *packet_priv;
};
void dump_packet(const char *msg, xpacket_t *packet, bool print_dbg);
int packet_receive(xbus_t *xbus, xpacket_t *pack);
int xproto_register(const xproto_table_t *proto_table);
void xproto_unregister(const xproto_table_t *proto_table);
const xproto_entry_t *xproto_global_entry(byte opcode);
const char *xproto_name(xpd_type_t xpd_type);
#endif /* XPROTO_H */
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