Add mISDN core files

Add mISDN core files

Signed-off-by: Karsten Keil <kkeil@suse.de>

1 files changed, 487 insertions, 0 deletions

diff --git a/include/linux/mISDNif.h b/include/linux/mISDNif.h
new file mode 100644
index 000000000000..5c948f337817
--- /dev/null
+++ b/include/linux/mISDNif.h
@@ -0,0 +1,487 @@
+/*
+ *
+ * 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     0
+#define MISDN_RELEASE           18
+
+/* 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 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 managment */
+#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
+
+/* 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
+
+/* 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_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 OPTION_L2_PMX           1
+#define OPTION_L2_PTP           2
+#define OPTION_L2_FIXEDTEI      3
+#define OPTION_L2_CLEANUP       4
+
+/* should be in sync with linux/kobject.h:KOBJ_NAME_LEN */
+#define MISDN_MAX_IDLEN         20
+
+struct mISDNhead {
+        unsigned int    prim;
+        unsigned int    id;
+}  __attribute__((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_CHMAP_SIZE        4
+
+#define SOL_MISDN       0
+
+struct sockaddr_mISDN {
+        sa_family_t    family;
+        unsigned char   dev;
+        unsigned char   channel;
+        unsigned char   sapi;
+        unsigned char   tei;
+};
+
+/* 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)
+
+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_long                  channelmap[MISDN_CHMAP_SIZE];
+        u_int                   nrbchan;
+        char                    name[MISDN_MAX_IDLEN];
+};
+
+/* 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_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_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
+
+
+/* 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 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 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;
+        char                    name[MISDN_MAX_IDLEN];
+        u_int                   Dprotocols;
+        u_int                   Bprotocols;
+        u_int                   nrbchan;
+        u_long                  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
+};
+
+/* global alloc/queue dunctions */
+
+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 *, char *name);
+extern void     mISDN_unregister_device(struct mISDNdevice *);
+extern int      mISDN_register_Bprotocol(struct Bprotocol *);
+extern void     mISDN_unregister_Bprotocol(struct Bprotocol *);
+
+extern void     set_channel_address(struct mISDNchannel *, u_int, u_int);
+
+#endif /* __KERNEL__ */
+#endif /* mISDNIF_H */