c27b46e7f1
MISDN_CTRL_RX_OFF is a meachanism to discard RX data in the driver if the data is not needed by the application. It can be used when playing mesages, but not recording or with unidirectional protocols. Signed-off-by: Karsten Keil <kkeil@linux-pingi.de> Signed-off-by: David S. Miller <davem@davemloft.net>
202 lines
5.8 KiB
C
202 lines
5.8 KiB
C
/*
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*
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* Author Karsten Keil <kkeil@novell.com>
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*
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* Basic declarations for the mISDN HW channels
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*
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* Copyright 2008 by Karsten Keil <kkeil@novell.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef MISDNHW_H
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#define MISDNHW_H
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#include <linux/mISDNif.h>
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#include <linux/timer.h>
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/*
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* HW DEBUG 0xHHHHGGGG
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* H - hardware driver specific bits
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* G - for all drivers
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*/
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#define DEBUG_HW 0x00000001
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#define DEBUG_HW_OPEN 0x00000002
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#define DEBUG_HW_DCHANNEL 0x00000100
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#define DEBUG_HW_DFIFO 0x00000200
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#define DEBUG_HW_BCHANNEL 0x00001000
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#define DEBUG_HW_BFIFO 0x00002000
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#define MAX_DFRAME_LEN_L1 300
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#define MAX_MON_FRAME 32
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#define MAX_LOG_SPACE 2048
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#define MISDN_COPY_SIZE 32
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/* channel->Flags bit field */
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#define FLG_TX_BUSY 0 /* tx_buf in use */
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#define FLG_TX_NEXT 1 /* next_skb in use */
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#define FLG_L1_BUSY 2 /* L1 is permanent busy */
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#define FLG_L2_ACTIVATED 3 /* activated from L2 */
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#define FLG_OPEN 5 /* channel is in use */
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#define FLG_ACTIVE 6 /* channel is activated */
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#define FLG_BUSY_TIMER 7
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/* channel type */
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#define FLG_DCHANNEL 8 /* channel is D-channel */
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#define FLG_BCHANNEL 9 /* channel is B-channel */
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#define FLG_ECHANNEL 10 /* channel is E-channel */
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#define FLG_TRANSPARENT 12 /* channel use transparent data */
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#define FLG_HDLC 13 /* channel use hdlc data */
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#define FLG_L2DATA 14 /* channel use L2 DATA primitivs */
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#define FLG_ORIGIN 15 /* channel is on origin site */
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/* channel specific stuff */
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#define FLG_FILLEMPTY 16 /* fill fifo on first frame (empty) */
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/* arcofi specific */
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#define FLG_ARCOFI_TIMER 17
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#define FLG_ARCOFI_ERROR 18
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/* isar specific */
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#define FLG_INITIALIZED 17
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#define FLG_DLEETX 18
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#define FLG_LASTDLE 19
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#define FLG_FIRST 20
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#define FLG_LASTDATA 21
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#define FLG_NMD_DATA 22
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#define FLG_FTI_RUN 23
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#define FLG_LL_OK 24
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#define FLG_LL_CONN 25
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#define FLG_DTMFSEND 26
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#define FLG_TX_EMPTY 27
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/* stop sending received data upstream */
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#define FLG_RX_OFF 28
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/* workq events */
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#define FLG_RECVQUEUE 30
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#define FLG_PHCHANGE 31
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#define schedule_event(s, ev) do { \
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test_and_set_bit(ev, &((s)->Flags)); \
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schedule_work(&((s)->workq)); \
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} while (0)
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struct dchannel {
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struct mISDNdevice dev;
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u_long Flags;
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struct work_struct workq;
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void (*phfunc) (struct dchannel *);
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u_int state;
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void *l1;
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void *hw;
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int slot; /* multiport card channel slot */
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struct timer_list timer;
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/* receive data */
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struct sk_buff *rx_skb;
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int maxlen;
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/* send data */
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struct sk_buff_head squeue;
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struct sk_buff_head rqueue;
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struct sk_buff *tx_skb;
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int tx_idx;
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int debug;
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/* statistics */
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int err_crc;
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int err_tx;
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int err_rx;
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};
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typedef int (dchannel_l1callback)(struct dchannel *, u_int);
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extern int create_l1(struct dchannel *, dchannel_l1callback *);
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/* private L1 commands */
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#define INFO0 0x8002
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#define INFO1 0x8102
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#define INFO2 0x8202
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#define INFO3_P8 0x8302
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#define INFO3_P10 0x8402
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#define INFO4_P8 0x8502
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#define INFO4_P10 0x8602
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#define LOSTFRAMING 0x8702
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#define ANYSIGNAL 0x8802
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#define HW_POWERDOWN 0x8902
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#define HW_RESET_REQ 0x8a02
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#define HW_POWERUP_REQ 0x8b02
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#define HW_DEACT_REQ 0x8c02
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#define HW_ACTIVATE_REQ 0x8e02
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#define HW_D_NOBLOCKED 0x8f02
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#define HW_RESET_IND 0x9002
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#define HW_POWERUP_IND 0x9102
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#define HW_DEACT_IND 0x9202
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#define HW_ACTIVATE_IND 0x9302
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#define HW_DEACT_CNF 0x9402
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#define HW_TESTLOOP 0x9502
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#define HW_TESTRX_RAW 0x9602
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#define HW_TESTRX_HDLC 0x9702
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#define HW_TESTRX_OFF 0x9802
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#define HW_TIMER3_IND 0x9902
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#define HW_TIMER3_VALUE 0x9a00
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#define HW_TIMER3_VMASK 0x00FF
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struct layer1;
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extern int l1_event(struct layer1 *, u_int);
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#define MISDN_BCH_FILL_SIZE 4
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struct bchannel {
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struct mISDNchannel ch;
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int nr;
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u_long Flags;
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struct work_struct workq;
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u_int state;
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void *hw;
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int slot; /* multiport card channel slot */
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struct timer_list timer;
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/* receive data */
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u8 fill[MISDN_BCH_FILL_SIZE];
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struct sk_buff *rx_skb;
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unsigned short maxlen;
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unsigned short init_maxlen; /* initial value */
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unsigned short next_maxlen; /* pending value */
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unsigned short minlen; /* for transparent data */
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unsigned short init_minlen; /* initial value */
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unsigned short next_minlen; /* pending value */
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/* send data */
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struct sk_buff *next_skb;
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struct sk_buff *tx_skb;
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struct sk_buff_head rqueue;
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int rcount;
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int tx_idx;
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int debug;
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/* statistics */
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int err_crc;
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int err_tx;
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int err_rx;
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int dropcnt;
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};
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extern int mISDN_initdchannel(struct dchannel *, int, void *);
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extern int mISDN_initbchannel(struct bchannel *, unsigned short,
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unsigned short);
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extern int mISDN_freedchannel(struct dchannel *);
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extern void mISDN_clear_bchannel(struct bchannel *);
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extern int mISDN_freebchannel(struct bchannel *);
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extern int mISDN_ctrl_bchannel(struct bchannel *, struct mISDN_ctrl_req *);
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extern void queue_ch_frame(struct mISDNchannel *, u_int,
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int, struct sk_buff *);
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extern int dchannel_senddata(struct dchannel *, struct sk_buff *);
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extern int bchannel_senddata(struct bchannel *, struct sk_buff *);
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extern int bchannel_get_rxbuf(struct bchannel *, int);
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extern void recv_Dchannel(struct dchannel *);
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extern void recv_Echannel(struct dchannel *, struct dchannel *);
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extern void recv_Bchannel(struct bchannel *, unsigned int, bool);
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extern void recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
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extern void recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
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extern int get_next_bframe(struct bchannel *);
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extern int get_next_dframe(struct dchannel *);
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#endif
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