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linux-next/include/linux/mISDNif.h
Karsten Keil 034005a011 mISDN: Allow to set a minimum length for transparent data 
If the FIFO of the card is small, many short messages are queued up to
the upper layers and the userspace. This change allows the applications
to set a minimum datalen they want from the drivers.
Create a common control function to avoid code duplication in each
driver.

Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-16 15:23:46 -04:00

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/*
*
* Author Karsten Keil <kkeil@novell.com>
*
* Copyright 2008 by Karsten Keil <kkeil@novell.com>
*
* This code is free software; you can redistribute it and/or modify
* it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE
* version 2.1 as published by the Free Software Foundation.
*
* This code 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 LESSER GENERAL PUBLIC LICENSE for more details.
*
*/
#ifndef mISDNIF_H
#define mISDNIF_H
#include <stdarg.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/socket.h>
/*
* ABI Version 32 bit
*
* <8 bit> Major version
* - changed if any interface become backwards incompatible
*
* <8 bit> Minor version
* - changed if any interface is extended but backwards compatible
*
* <16 bit> Release number
* - should be incremented on every checkin
*/
#define MISDN_MAJOR_VERSION 1
#define MISDN_MINOR_VERSION 1
#define MISDN_RELEASE 29
/* primitives for information exchange
* generell format
* <16 bit 0 >
* <8 bit command>
* BIT 8 = 1 LAYER private
* BIT 7 = 1 answer
* BIT 6 = 1 DATA
* <8 bit target layer mask>
*
* Layer = 00 is reserved for general commands
Layer = 01 L2 -> HW
Layer = 02 HW -> L2
Layer = 04 L3 -> L2
Layer = 08 L2 -> L3
* Layer = FF is reserved for broadcast commands
*/
#define MISDN_CMDMASK 0xff00
#define MISDN_LAYERMASK 0x00ff
/* generell commands */
#define OPEN_CHANNEL 0x0100
#define CLOSE_CHANNEL 0x0200
#define CONTROL_CHANNEL 0x0300
#define CHECK_DATA 0x0400
/* layer 2 -> layer 1 */
#define PH_ACTIVATE_REQ 0x0101
#define PH_DEACTIVATE_REQ 0x0201
#define PH_DATA_REQ 0x2001
#define MPH_ACTIVATE_REQ 0x0501
#define MPH_DEACTIVATE_REQ 0x0601
#define MPH_INFORMATION_REQ 0x0701
#define PH_CONTROL_REQ 0x0801
/* layer 1 -> layer 2 */
#define PH_ACTIVATE_IND 0x0102
#define PH_ACTIVATE_CNF 0x4102
#define PH_DEACTIVATE_IND 0x0202
#define PH_DEACTIVATE_CNF 0x4202
#define PH_DATA_IND 0x2002
#define PH_DATA_E_IND 0x3002
#define MPH_ACTIVATE_IND 0x0502
#define MPH_DEACTIVATE_IND 0x0602
#define MPH_INFORMATION_IND 0x0702
#define PH_DATA_CNF 0x6002
#define PH_CONTROL_IND 0x0802
#define PH_CONTROL_CNF 0x4802
/* layer 3 -> layer 2 */
#define DL_ESTABLISH_REQ 0x1004
#define DL_RELEASE_REQ 0x1104
#define DL_DATA_REQ 0x3004
#define DL_UNITDATA_REQ 0x3104
#define DL_INFORMATION_REQ 0x0004
/* layer 2 -> layer 3 */
#define DL_ESTABLISH_IND 0x1008
#define DL_ESTABLISH_CNF 0x5008
#define DL_RELEASE_IND 0x1108
#define DL_RELEASE_CNF 0x5108
#define DL_DATA_IND 0x3008
#define DL_UNITDATA_IND 0x3108
#define DL_INFORMATION_IND 0x0008
/* intern layer 2 management */
#define MDL_ASSIGN_REQ 0x1804
#define MDL_ASSIGN_IND 0x1904
#define MDL_REMOVE_REQ 0x1A04
#define MDL_REMOVE_IND 0x1B04
#define MDL_STATUS_UP_IND 0x1C04
#define MDL_STATUS_DOWN_IND 0x1D04
#define MDL_STATUS_UI_IND 0x1E04
#define MDL_ERROR_IND 0x1F04
#define MDL_ERROR_RSP 0x5F04
/* intern layer 2 */
#define DL_TIMER200_IND 0x7004
#define DL_TIMER203_IND 0x7304
#define DL_INTERN_MSG 0x7804
/* DL_INFORMATION_IND types */
#define DL_INFO_L2_CONNECT 0x0001
#define DL_INFO_L2_REMOVED 0x0002
/* PH_CONTROL types */
/* TOUCH TONE IS 0x20XX XX "0"..."9", "A","B","C","D","*","#" */
#define DTMF_TONE_VAL 0x2000
#define DTMF_TONE_MASK 0x007F
#define DTMF_TONE_START 0x2100
#define DTMF_TONE_STOP 0x2200
#define DTMF_HFC_COEF 0x4000
#define DSP_CONF_JOIN 0x2403
#define DSP_CONF_SPLIT 0x2404
#define DSP_RECEIVE_OFF 0x2405
#define DSP_RECEIVE_ON 0x2406
#define DSP_ECHO_ON 0x2407
#define DSP_ECHO_OFF 0x2408
#define DSP_MIX_ON 0x2409
#define DSP_MIX_OFF 0x240a
#define DSP_DELAY 0x240b
#define DSP_JITTER 0x240c
#define DSP_TXDATA_ON 0x240d
#define DSP_TXDATA_OFF 0x240e
#define DSP_TX_DEJITTER 0x240f
#define DSP_TX_DEJ_OFF 0x2410
#define DSP_TONE_PATT_ON 0x2411
#define DSP_TONE_PATT_OFF 0x2412
#define DSP_VOL_CHANGE_TX 0x2413
#define DSP_VOL_CHANGE_RX 0x2414
#define DSP_BF_ENABLE_KEY 0x2415
#define DSP_BF_DISABLE 0x2416
#define DSP_BF_ACCEPT 0x2416
#define DSP_BF_REJECT 0x2417
#define DSP_PIPELINE_CFG 0x2418
#define HFC_VOL_CHANGE_TX 0x2601
#define HFC_VOL_CHANGE_RX 0x2602
#define HFC_SPL_LOOP_ON 0x2603
#define HFC_SPL_LOOP_OFF 0x2604
/* for T30 FAX and analog modem */
#define HW_MOD_FRM 0x4000
#define HW_MOD_FRH 0x4001
#define HW_MOD_FTM 0x4002
#define HW_MOD_FTH 0x4003
#define HW_MOD_FTS 0x4004
#define HW_MOD_CONNECT 0x4010
#define HW_MOD_OK 0x4011
#define HW_MOD_NOCARR 0x4012
#define HW_MOD_FCERROR 0x4013
#define HW_MOD_READY 0x4014
#define HW_MOD_LASTDATA 0x4015
/* DSP_TONE_PATT_ON parameter */
#define TONE_OFF 0x0000
#define TONE_GERMAN_DIALTONE 0x0001
#define TONE_GERMAN_OLDDIALTONE 0x0002
#define TONE_AMERICAN_DIALTONE 0x0003
#define TONE_GERMAN_DIALPBX 0x0004
#define TONE_GERMAN_OLDDIALPBX 0x0005
#define TONE_AMERICAN_DIALPBX 0x0006
#define TONE_GERMAN_RINGING 0x0007
#define TONE_GERMAN_OLDRINGING 0x0008
#define TONE_AMERICAN_RINGPBX 0x000b
#define TONE_GERMAN_RINGPBX 0x000c
#define TONE_GERMAN_OLDRINGPBX 0x000d
#define TONE_AMERICAN_RINGING 0x000e
#define TONE_GERMAN_BUSY 0x000f
#define TONE_GERMAN_OLDBUSY 0x0010
#define TONE_AMERICAN_BUSY 0x0011
#define TONE_GERMAN_HANGUP 0x0012
#define TONE_GERMAN_OLDHANGUP 0x0013
#define TONE_AMERICAN_HANGUP 0x0014
#define TONE_SPECIAL_INFO 0x0015
#define TONE_GERMAN_GASSENBESETZT 0x0016
#define TONE_GERMAN_AUFSCHALTTON 0x0016
/* MPH_INFORMATION_IND */
#define L1_SIGNAL_LOS_OFF 0x0010
#define L1_SIGNAL_LOS_ON 0x0011
#define L1_SIGNAL_AIS_OFF 0x0012
#define L1_SIGNAL_AIS_ON 0x0013
#define L1_SIGNAL_RDI_OFF 0x0014
#define L1_SIGNAL_RDI_ON 0x0015
#define L1_SIGNAL_SLIP_RX 0x0020
#define L1_SIGNAL_SLIP_TX 0x0021
/*
* protocol ids
* D channel 1-31
* B channel 33 - 63
*/
#define ISDN_P_NONE 0
#define ISDN_P_BASE 0
#define ISDN_P_TE_S0 0x01
#define ISDN_P_NT_S0 0x02
#define ISDN_P_TE_E1 0x03
#define ISDN_P_NT_E1 0x04
#define ISDN_P_TE_UP0 0x05
#define ISDN_P_NT_UP0 0x06
#define IS_ISDN_P_TE(p) ((p == ISDN_P_TE_S0) || (p == ISDN_P_TE_E1) || \
(p == ISDN_P_TE_UP0) || (p == ISDN_P_LAPD_TE))
#define IS_ISDN_P_NT(p) ((p == ISDN_P_NT_S0) || (p == ISDN_P_NT_E1) || \
(p == ISDN_P_NT_UP0) || (p == ISDN_P_LAPD_NT))
#define IS_ISDN_P_S0(p) ((p == ISDN_P_TE_S0) || (p == ISDN_P_NT_S0))
#define IS_ISDN_P_E1(p) ((p == ISDN_P_TE_E1) || (p == ISDN_P_NT_E1))
#define IS_ISDN_P_UP0(p) ((p == ISDN_P_TE_UP0) || (p == ISDN_P_NT_UP0))
#define ISDN_P_LAPD_TE 0x10
#define ISDN_P_LAPD_NT 0x11
#define ISDN_P_B_MASK 0x1f
#define ISDN_P_B_START 0x20
#define ISDN_P_B_RAW 0x21
#define ISDN_P_B_HDLC 0x22
#define ISDN_P_B_X75SLP 0x23
#define ISDN_P_B_L2DTMF 0x24
#define ISDN_P_B_L2DSP 0x25
#define ISDN_P_B_L2DSPHDLC 0x26
#define ISDN_P_B_T30_FAX 0x27
#define ISDN_P_B_MODEM_ASYNC 0x28
#define OPTION_L2_PMX 1
#define OPTION_L2_PTP 2
#define OPTION_L2_FIXEDTEI 3
#define OPTION_L2_CLEANUP 4
#define OPTION_L1_HOLD 5
/* should be in sync with linux/kobject.h:KOBJ_NAME_LEN */
#define MISDN_MAX_IDLEN 20
struct mISDNhead {
unsigned int prim;
unsigned int id;
} __packed;
#define MISDN_HEADER_LEN sizeof(struct mISDNhead)
#define MAX_DATA_SIZE 2048
#define MAX_DATA_MEM (MAX_DATA_SIZE + MISDN_HEADER_LEN)
#define MAX_DFRAME_LEN 260
#define MISDN_ID_ADDR_MASK 0xFFFF
#define MISDN_ID_TEI_MASK 0xFF00
#define MISDN_ID_SAPI_MASK 0x00FF
#define MISDN_ID_TEI_ANY 0x7F00
#define MISDN_ID_ANY 0xFFFF
#define MISDN_ID_NONE 0xFFFE
#define GROUP_TEI 127
#define TEI_SAPI 63
#define CTRL_SAPI 0
#define MISDN_MAX_CHANNEL 127
#define MISDN_CHMAP_SIZE ((MISDN_MAX_CHANNEL + 1) >> 3)
#define SOL_MISDN 0
struct sockaddr_mISDN {
sa_family_t family;
unsigned char dev;
unsigned char channel;
unsigned char sapi;
unsigned char tei;
};
struct mISDNversion {
unsigned char major;
unsigned char minor;
unsigned short release;
};
struct mISDN_devinfo {
u_int id;
u_int Dprotocols;
u_int Bprotocols;
u_int protocol;
u_char channelmap[MISDN_CHMAP_SIZE];
u_int nrbchan;
char name[MISDN_MAX_IDLEN];
};
struct mISDN_devrename {
u_int id;
char name[MISDN_MAX_IDLEN]; /* new name */
};
/* MPH_INFORMATION_REQ payload */
struct ph_info_ch {
__u32 protocol;
__u64 Flags;
};
struct ph_info_dch {
struct ph_info_ch ch;
__u16 state;
__u16 num_bch;
};
struct ph_info {
struct ph_info_dch dch;
struct ph_info_ch bch[];
};
/* timer device ioctl */
#define IMADDTIMER _IOR('I', 64, int)
#define IMDELTIMER _IOR('I', 65, int)
/* socket ioctls */
#define IMGETVERSION _IOR('I', 66, int)
#define IMGETCOUNT _IOR('I', 67, int)
#define IMGETDEVINFO _IOR('I', 68, int)
#define IMCTRLREQ _IOR('I', 69, int)
#define IMCLEAR_L2 _IOR('I', 70, int)
#define IMSETDEVNAME _IOR('I', 71, struct mISDN_devrename)
#define IMHOLD_L1 _IOR('I', 72, int)
static inline int
test_channelmap(u_int nr, u_char *map)
{
if (nr <= MISDN_MAX_CHANNEL)
return map[nr >> 3] & (1 << (nr & 7));
else
return 0;
}
static inline void
set_channelmap(u_int nr, u_char *map)
{
map[nr >> 3] |= (1 << (nr & 7));
}
static inline void
clear_channelmap(u_int nr, u_char *map)
{
map[nr >> 3] &= ~(1 << (nr & 7));
}
/* CONTROL_CHANNEL parameters */
#define MISDN_CTRL_GETOP 0x0000
#define MISDN_CTRL_LOOP 0x0001
#define MISDN_CTRL_CONNECT 0x0002
#define MISDN_CTRL_DISCONNECT 0x0004
#define MISDN_CTRL_RX_BUFFER 0x0008
#define MISDN_CTRL_PCMCONNECT 0x0010
#define MISDN_CTRL_PCMDISCONNECT 0x0020
#define MISDN_CTRL_SETPEER 0x0040
#define MISDN_CTRL_UNSETPEER 0x0080
#define MISDN_CTRL_RX_OFF 0x0100
#define MISDN_CTRL_FILL_EMPTY 0x0200
#define MISDN_CTRL_GETPEER 0x0400
#define MISDN_CTRL_L1_TIMER3 0x0800
#define MISDN_CTRL_HW_FEATURES_OP 0x2000
#define MISDN_CTRL_HW_FEATURES 0x2001
#define MISDN_CTRL_HFC_OP 0x4000
#define MISDN_CTRL_HFC_PCM_CONN 0x4001
#define MISDN_CTRL_HFC_PCM_DISC 0x4002
#define MISDN_CTRL_HFC_CONF_JOIN 0x4003
#define MISDN_CTRL_HFC_CONF_SPLIT 0x4004
#define MISDN_CTRL_HFC_RECEIVE_OFF 0x4005
#define MISDN_CTRL_HFC_RECEIVE_ON 0x4006
#define MISDN_CTRL_HFC_ECHOCAN_ON 0x4007
#define MISDN_CTRL_HFC_ECHOCAN_OFF 0x4008
#define MISDN_CTRL_HFC_WD_INIT 0x4009
#define MISDN_CTRL_HFC_WD_RESET 0x400A
/* special RX buffer value for MISDN_CTRL_RX_BUFFER request.p1 is the minimum
* buffer size request.p2 the maximum. Using MISDN_CTRL_RX_SIZE_IGNORE will
* not change the value, but still read back the actual stetting.
*/
#define MISDN_CTRL_RX_SIZE_IGNORE -1
/* socket options */
#define MISDN_TIME_STAMP 0x0001
struct mISDN_ctrl_req {
int op;
int channel;
int p1;
int p2;
};
/* muxer options */
#define MISDN_OPT_ALL 1
#define MISDN_OPT_TEIMGR 2
#ifdef __KERNEL__
#include <linux/list.h>
#include <linux/skbuff.h>
#include <linux/net.h>
#include <net/sock.h>
#include <linux/completion.h>
#define DEBUG_CORE 0x000000ff
#define DEBUG_CORE_FUNC 0x00000002
#define DEBUG_SOCKET 0x00000004
#define DEBUG_MANAGER 0x00000008
#define DEBUG_SEND_ERR 0x00000010
#define DEBUG_MSG_THREAD 0x00000020
#define DEBUG_QUEUE_FUNC 0x00000040
#define DEBUG_L1 0x0000ff00
#define DEBUG_L1_FSM 0x00000200
#define DEBUG_L2 0x00ff0000
#define DEBUG_L2_FSM 0x00020000
#define DEBUG_L2_CTRL 0x00040000
#define DEBUG_L2_RECV 0x00080000
#define DEBUG_L2_TEI 0x00100000
#define DEBUG_L2_TEIFSM 0x00200000
#define DEBUG_TIMER 0x01000000
#define DEBUG_CLOCK 0x02000000
#define mISDN_HEAD_P(s) ((struct mISDNhead *)&s->cb[0])
#define mISDN_HEAD_PRIM(s) (((struct mISDNhead *)&s->cb[0])->prim)
#define mISDN_HEAD_ID(s) (((struct mISDNhead *)&s->cb[0])->id)
/* socket states */
#define MISDN_OPEN 1
#define MISDN_BOUND 2
#define MISDN_CLOSED 3
struct mISDNchannel;
struct mISDNdevice;
struct mISDNstack;
struct mISDNclock;
struct channel_req {
u_int protocol;
struct sockaddr_mISDN adr;
struct mISDNchannel *ch;
};
typedef int (ctrl_func_t)(struct mISDNchannel *, u_int, void *);
typedef int (send_func_t)(struct mISDNchannel *, struct sk_buff *);
typedef int (create_func_t)(struct channel_req *);
struct Bprotocol {
struct list_head list;
char *name;
u_int Bprotocols;
create_func_t *create;
};
struct mISDNchannel {
struct list_head list;
u_int protocol;
u_int nr;
u_long opt;
u_int addr;
struct mISDNstack *st;
struct mISDNchannel *peer;
send_func_t *send;
send_func_t *recv;
ctrl_func_t *ctrl;
};
struct mISDN_sock_list {
struct hlist_head head;
rwlock_t lock;
};
struct mISDN_sock {
struct sock sk;
struct mISDNchannel ch;
u_int cmask;
struct mISDNdevice *dev;
};
struct mISDNdevice {
struct mISDNchannel D;
u_int id;
u_int Dprotocols;
u_int Bprotocols;
u_int nrbchan;
u_char channelmap[MISDN_CHMAP_SIZE];
struct list_head bchannels;
struct mISDNchannel *teimgr;
struct device dev;
};
struct mISDNstack {
u_long status;
struct mISDNdevice *dev;
struct task_struct *thread;
struct completion *notify;
wait_queue_head_t workq;
struct sk_buff_head msgq;
struct list_head layer2;
struct mISDNchannel *layer1;
struct mISDNchannel own;
struct mutex lmutex; /* protect lists */
struct mISDN_sock_list l1sock;
#ifdef MISDN_MSG_STATS
u_int msg_cnt;
u_int sleep_cnt;
u_int stopped_cnt;
#endif
};
typedef int (clockctl_func_t)(void *, int);
struct mISDNclock {
struct list_head list;
char name[64];
int pri;
clockctl_func_t *ctl;
void *priv;
};
/* global alloc/queue functions */
static inline struct sk_buff *
mI_alloc_skb(unsigned int len, gfp_t gfp_mask)
{
struct sk_buff *skb;
skb = alloc_skb(len + MISDN_HEADER_LEN, gfp_mask);
if (likely(skb))
skb_reserve(skb, MISDN_HEADER_LEN);
return skb;
}
static inline struct sk_buff *
_alloc_mISDN_skb(u_int prim, u_int id, u_int len, void *dp, gfp_t gfp_mask)
{
struct sk_buff *skb = mI_alloc_skb(len, gfp_mask);
struct mISDNhead *hh;
if (!skb)
return NULL;
if (len)
memcpy(skb_put(skb, len), dp, len);
hh = mISDN_HEAD_P(skb);
hh->prim = prim;
hh->id = id;
return skb;
}
static inline void
_queue_data(struct mISDNchannel *ch, u_int prim,
u_int id, u_int len, void *dp, gfp_t gfp_mask)
{
struct sk_buff *skb;
if (!ch->peer)
return;
skb = _alloc_mISDN_skb(prim, id, len, dp, gfp_mask);
if (!skb)
return;
if (ch->recv(ch->peer, skb))
dev_kfree_skb(skb);
}
/* global register/unregister functions */
extern int mISDN_register_device(struct mISDNdevice *,
struct device *parent, char *name);
extern void mISDN_unregister_device(struct mISDNdevice *);
extern int mISDN_register_Bprotocol(struct Bprotocol *);
extern void mISDN_unregister_Bprotocol(struct Bprotocol *);
extern struct mISDNclock *mISDN_register_clock(char *, int, clockctl_func_t *,
void *);
extern void mISDN_unregister_clock(struct mISDNclock *);
static inline struct mISDNdevice *dev_to_mISDN(struct device *dev)
{
if (dev)
return dev_get_drvdata(dev);
else
return NULL;
}
extern void set_channel_address(struct mISDNchannel *, u_int, u_int);
extern void mISDN_clock_update(struct mISDNclock *, int, struct timeval *);
extern unsigned short mISDN_clock_get(void);
extern const char *mISDNDevName4ch(struct mISDNchannel *);
#endif /* __KERNEL__ */
#endif /* mISDNIF_H */
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