493 lines
17 KiB
C
493 lines
17 KiB
C
/*****************************************************************************
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* wanpipe.h WANPIPE(tm) Multiprotocol WAN Link Driver.
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* User-level API definitions.
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*
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* Author: Nenad Corbic <ncorbic@sangoma.com>
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* Gideon Hack
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*
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* Copyright: (c) 1995-2000 Sangoma Technologies Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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* ============================================================================
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* Nov 3, 2000 Nenad Corbic Added config_id to sdla_t structure.
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* Used to determine the protocol running.
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* Jul 13, 2000 Nenad Corbic Added SyncPPP Support
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* Feb 24, 2000 Nenad Corbic Added support for x25api driver
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* Oct 04, 1999 Nenad Corbic New CHDLC and FRAME RELAY code, SMP support
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* Jun 02, 1999 Gideon Hack Added 'update_call_count' for Cisco HDLC
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* support
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* Jun 26, 1998 David Fong Added 'ip_mode' in sdla_t.u.p for dynamic IP
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* routing mode configuration
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* Jun 12, 1998 David Fong Added Cisco HDLC union member in sdla_t
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* Dec 08, 1997 Jaspreet Singh Added 'authenticator' in union of 'sdla_t'
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* Nov 26, 1997 Jaspreet Singh Added 'load_sharing' structure. Also added
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* 'devs_struct','dev_to_devtint_next' to 'sdla_t'
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* Nov 24, 1997 Jaspreet Singh Added 'irq_dis_if_send_count',
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* 'irq_dis_poll_count' to 'sdla_t'.
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* Nov 06, 1997 Jaspreet Singh Added a define called 'INTR_TEST_MODE'
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* Oct 20, 1997 Jaspreet Singh Added 'buff_intr_mode_unbusy' and
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* 'dlci_intr_mode_unbusy' to 'sdla_t'
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* Oct 18, 1997 Jaspreet Singh Added structure to maintain global driver
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* statistics.
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* Jan 15, 1997 Gene Kozin Version 3.1.0
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* o added UDP management stuff
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* Jan 02, 1997 Gene Kozin Version 3.0.0
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*****************************************************************************/
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#ifndef _WANPIPE_H
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#define _WANPIPE_H
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#include <linux/wanrouter.h>
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/* Defines */
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#ifndef PACKED
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#define PACKED __attribute__((packed))
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#endif
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#define WANPIPE_MAGIC 0x414C4453L /* signature: 'SDLA' reversed */
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/* IOCTL numbers (up to 16) */
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#define WANPIPE_DUMP (ROUTER_USER+0) /* dump adapter's memory */
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#define WANPIPE_EXEC (ROUTER_USER+1) /* execute firmware command */
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#define TRACE_ALL 0x00
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#define TRACE_PROT 0x01
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#define TRACE_DATA 0x02
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/* values for request/reply byte */
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#define UDPMGMT_REQUEST 0x01
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#define UDPMGMT_REPLY 0x02
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#define UDP_OFFSET 12
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#define MAX_CMD_BUFF 10
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#define MAX_X25_LCN 255 /* Maximum number of x25 channels */
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#define MAX_LCN_NUM 4095 /* Maximum lcn number */
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#define MAX_FT1_RETRY 100
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#ifndef AF_WANPIPE
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#define AF_WANPIPE 25
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#ifndef PF_WANPIPE
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#define PF_WANPIPE AF_WANPIPE
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#endif
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#endif
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#define TX_TIMEOUT 5*HZ
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/* General Critical Flags */
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#define SEND_CRIT 0x00
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#define PERI_CRIT 0x01
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/* Chdlc and PPP polling critical flag */
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#define POLL_CRIT 0x03
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/* Frame Relay Tx IRQ send critical flag */
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#define SEND_TXIRQ_CRIT 0x02
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/* Frame Relay ARP critical flag */
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#define ARP_CRIT 0x03
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/* Bit maps for dynamic interface configuration
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* DYN_OPT_ON : turns this option on/off
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* DEV_DOWN : device was shutdown by the driver not
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* by user
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*/
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#define DYN_OPT_ON 0x00
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#define DEV_DOWN 0x01
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/*
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* Data structures for IOCTL calls.
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*/
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typedef struct sdla_dump /* WANPIPE_DUMP */
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{
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unsigned long magic; /* for verification */
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unsigned long offset; /* absolute adapter memory address */
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unsigned long length; /* block length */
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void* ptr; /* -> buffer */
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} sdla_dump_t;
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typedef struct sdla_exec /* WANPIPE_EXEC */
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{
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unsigned long magic; /* for verification */
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void* cmd; /* -> command structure */
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void* data; /* -> data buffer */
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} sdla_exec_t;
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/* UDP management stuff */
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typedef struct wum_header
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{
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unsigned char signature[8]; /* 00h: signature */
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unsigned char type; /* 08h: request/reply */
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unsigned char command; /* 09h: commnand */
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unsigned char reserved[6]; /* 0Ah: reserved */
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} wum_header_t;
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/*************************************************************************
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Data Structure for global statistics
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*************************************************************************/
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typedef struct global_stats
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{
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unsigned long isr_entry;
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unsigned long isr_already_critical;
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unsigned long isr_rx;
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unsigned long isr_tx;
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unsigned long isr_intr_test;
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unsigned long isr_spurious;
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unsigned long isr_enable_tx_int;
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unsigned long rx_intr_corrupt_rx_bfr;
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unsigned long rx_intr_on_orphaned_DLCI;
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unsigned long rx_intr_dev_not_started;
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unsigned long tx_intr_dev_not_started;
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unsigned long poll_entry;
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unsigned long poll_already_critical;
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unsigned long poll_processed;
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unsigned long poll_tbusy_bad_status;
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unsigned long poll_host_disable_irq;
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unsigned long poll_host_enable_irq;
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} global_stats_t;
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typedef struct{
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unsigned short udp_src_port PACKED;
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unsigned short udp_dst_port PACKED;
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unsigned short udp_length PACKED;
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unsigned short udp_checksum PACKED;
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} udp_pkt_t;
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typedef struct {
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unsigned char ver_inet_hdr_length PACKED;
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unsigned char service_type PACKED;
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unsigned short total_length PACKED;
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unsigned short identifier PACKED;
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unsigned short flags_frag_offset PACKED;
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unsigned char ttl PACKED;
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unsigned char protocol PACKED;
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unsigned short hdr_checksum PACKED;
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unsigned long ip_src_address PACKED;
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unsigned long ip_dst_address PACKED;
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} ip_pkt_t;
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typedef struct {
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unsigned char signature[8] PACKED;
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unsigned char request_reply PACKED;
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unsigned char id PACKED;
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unsigned char reserved[6] PACKED;
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} wp_mgmt_t;
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/*************************************************************************
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Data Structure for if_send statistics
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*************************************************************************/
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typedef struct if_send_stat{
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unsigned long if_send_entry;
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unsigned long if_send_skb_null;
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unsigned long if_send_broadcast;
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unsigned long if_send_multicast;
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unsigned long if_send_critical_ISR;
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unsigned long if_send_critical_non_ISR;
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unsigned long if_send_tbusy;
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unsigned long if_send_tbusy_timeout;
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unsigned long if_send_PIPE_request;
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unsigned long if_send_wan_disconnected;
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unsigned long if_send_dlci_disconnected;
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unsigned long if_send_no_bfrs;
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unsigned long if_send_adptr_bfrs_full;
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unsigned long if_send_bfr_passed_to_adptr;
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unsigned long if_send_protocol_error;
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unsigned long if_send_bfr_not_passed_to_adptr;
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unsigned long if_send_tx_int_enabled;
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unsigned long if_send_consec_send_fail;
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} if_send_stat_t;
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typedef struct rx_intr_stat{
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unsigned long rx_intr_no_socket;
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unsigned long rx_intr_dev_not_started;
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unsigned long rx_intr_PIPE_request;
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unsigned long rx_intr_bfr_not_passed_to_stack;
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unsigned long rx_intr_bfr_passed_to_stack;
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} rx_intr_stat_t;
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typedef struct pipe_mgmt_stat{
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unsigned long UDP_PIPE_mgmt_kmalloc_err;
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unsigned long UDP_PIPE_mgmt_direction_err;
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unsigned long UDP_PIPE_mgmt_adptr_type_err;
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unsigned long UDP_PIPE_mgmt_adptr_cmnd_OK;
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unsigned long UDP_PIPE_mgmt_adptr_cmnd_timeout;
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unsigned long UDP_PIPE_mgmt_adptr_send_passed;
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unsigned long UDP_PIPE_mgmt_adptr_send_failed;
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unsigned long UDP_PIPE_mgmt_not_passed_to_stack;
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unsigned long UDP_PIPE_mgmt_passed_to_stack;
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unsigned long UDP_PIPE_mgmt_no_socket;
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unsigned long UDP_PIPE_mgmt_passed_to_adptr;
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} pipe_mgmt_stat_t;
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typedef struct {
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struct sk_buff *skb;
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} bh_data_t, cmd_data_t;
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#define MAX_LGTH_UDP_MGNT_PKT 2000
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/* This is used for interrupt testing */
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#define INTR_TEST_MODE 0x02
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#define WUM_SIGNATURE_L 0x50495046
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#define WUM_SIGNATURE_H 0x444E3845
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#define WUM_KILL 0x50
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#define WUM_EXEC 0x51
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#define WANPIPE 0x00
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#define API 0x01
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#define BRIDGE 0x02
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#define BRIDGE_NODE 0x03
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#ifdef __KERNEL__
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/****** Kernel Interface ****************************************************/
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#include <linux/sdladrv.h> /* SDLA support module API definitions */
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#include <linux/sdlasfm.h> /* SDLA firmware module definitions */
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#include <linux/workqueue.h>
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#include <linux/serial.h>
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#include <linux/serialP.h>
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#include <linux/serial_reg.h>
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#include <asm/serial.h>
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#include <linux/tty.h>
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#include <linux/tty_driver.h>
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#include <linux/tty_flip.h>
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#define is_digit(ch) (((ch)>=(unsigned)'0'&&(ch)<=(unsigned)'9')?1:0)
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#define is_alpha(ch) ((((ch)>=(unsigned)'a'&&(ch)<=(unsigned)'z')||\
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((ch)>=(unsigned)'A'&&(ch)<=(unsigned)'Z'))?1:0)
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#define is_hex_digit(ch) ((((ch)>=(unsigned)'0'&&(ch)<=(unsigned)'9')||\
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((ch)>=(unsigned)'a'&&(ch)<=(unsigned)'f')||\
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((ch)>=(unsigned)'A'&&(ch)<=(unsigned)'F'))?1:0)
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/****** Data Structures *****************************************************/
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/* Adapter Data Space.
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* This structure is needed because we handle multiple cards, otherwise
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* static data would do it.
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*/
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typedef struct sdla
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{
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char devname[WAN_DRVNAME_SZ+1]; /* card name */
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sdlahw_t hw; /* hardware configuration */
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struct wan_device wandev; /* WAN device data space */
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unsigned open_cnt; /* number of open interfaces */
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unsigned long state_tick; /* link state timestamp */
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unsigned intr_mode; /* Type of Interrupt Mode */
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char in_isr; /* interrupt-in-service flag */
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char buff_int_mode_unbusy; /* flag for carrying out dev_tint */
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char dlci_int_mode_unbusy; /* flag for carrying out dev_tint */
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long configured; /* flag for previous configurations */
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unsigned short irq_dis_if_send_count; /* Disabling irqs in if_send*/
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unsigned short irq_dis_poll_count; /* Disabling irqs in poll routine*/
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unsigned short force_enable_irq;
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char TracingEnabled; /* flag for enabling trace */
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global_stats_t statistics; /* global statistics */
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void* mbox; /* -> mailbox */
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void* rxmb; /* -> receive mailbox */
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void* flags; /* -> adapter status flags */
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void (*isr)(struct sdla* card); /* interrupt service routine */
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void (*poll)(struct sdla* card); /* polling routine */
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int (*exec)(struct sdla* card, void* u_cmd, void* u_data);
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/* Used by the listen() system call */
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/* Wanpipe Socket Interface */
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int (*func) (struct sk_buff *, struct sock *);
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struct sock *sk;
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/* Shutdown function */
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void (*disable_comm) (struct sdla *card);
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/* Secondary Port Device: Piggibacking */
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struct sdla *next;
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/* TTY driver variables */
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unsigned char tty_opt;
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struct tty_struct *tty;
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unsigned int tty_minor;
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unsigned int tty_open;
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unsigned char *tty_buf;
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unsigned char *tty_rx;
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struct work_struct tty_work;
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union
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{
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struct
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{ /****** X.25 specific data **********/
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u32 lo_pvc;
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u32 hi_pvc;
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u32 lo_svc;
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u32 hi_svc;
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struct net_device *svc_to_dev_map[MAX_X25_LCN];
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struct net_device *pvc_to_dev_map[MAX_X25_LCN];
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struct net_device *tx_dev;
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struct net_device *cmd_dev;
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u32 no_dev;
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volatile u8 *hdlc_buf_status;
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u32 tx_interrupts_pending;
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u16 timer_int_enabled;
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struct net_device *poll_device;
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atomic_t command_busy;
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u16 udp_pkt_lgth;
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u32 udp_type;
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u8 udp_pkt_src;
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u32 udp_lcn;
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struct net_device *udp_dev;
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s8 udp_pkt_data[MAX_LGTH_UDP_MGNT_PKT];
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u8 LAPB_hdlc; /* Option to turn off X25 and run only LAPB */
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u8 logging; /* Option to log call messages */
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u8 oob_on_modem; /* Option to send modem status to the api */
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u16 num_of_ch; /* Number of channels configured by the user */
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struct work_struct x25_poll_work;
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struct timer_list x25_timer;
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} x;
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struct
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{ /****** frame relay specific data ***/
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void* rxmb_base; /* -> first Rx buffer */
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void* rxmb_last; /* -> last Rx buffer */
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unsigned rx_base; /* S508 receive buffer base */
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unsigned rx_top; /* S508 receive buffer end */
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unsigned short node_dlci[100];
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unsigned short dlci_num;
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struct net_device *dlci_to_dev_map[991 + 1];
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unsigned tx_interrupts_pending;
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unsigned short timer_int_enabled;
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unsigned short udp_pkt_lgth;
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int udp_type;
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char udp_pkt_src;
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unsigned udp_dlci;
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char udp_pkt_data[MAX_LGTH_UDP_MGNT_PKT];
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void* trc_el_base; /* first trace element */
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void* trc_el_last; /* last trace element */
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void *curr_trc_el; /* current trace element */
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unsigned short trc_bfr_space; /* trace buffer space */
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unsigned char update_comms_stats;
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struct net_device *arp_dev;
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spinlock_t if_send_lock;
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} f;
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struct /****** PPP-specific data ***********/
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{
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char if_name[WAN_IFNAME_SZ+1]; /* interface name */
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void* txbuf; /* -> current Tx buffer */
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void* txbuf_base; /* -> first Tx buffer */
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void* txbuf_last; /* -> last Tx buffer */
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void* rxbuf_base; /* -> first Rx buffer */
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void* rxbuf_last; /* -> last Rx buffer */
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unsigned rx_base; /* S508 receive buffer base */
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unsigned rx_top; /* S508 receive buffer end */
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char ip_mode; /* STATIC/HOST/PEER IP Mode */
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char authenticator; /* Authenticator for PAP/CHAP */
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unsigned char comm_enabled; /* Is comm enabled or not */
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unsigned char peer_route; /* Process Peer Route */
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unsigned long *txbuf_next; /* Next Tx buffer to use */
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unsigned long *rxbuf_next; /* Next Rx buffer to use */
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} p;
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struct /* Cisco HDLC-specific data */
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{
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char if_name[WAN_IFNAME_SZ+1]; /* interface name */
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unsigned char comm_port;/* Communication Port O or 1 */
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unsigned char usedby; /* Used by WANPIPE or API */
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void* rxmb; /* Receive mail box */
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void* flags; /* flags */
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void* tx_status; /* Tx status element */
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void* rx_status; /* Rx status element */
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void* txbuf; /* -> current Tx buffer */
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void* txbuf_base; /* -> first Tx buffer */
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void* txbuf_last; /* -> last Tx buffer */
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void* rxbuf_base; /* -> first Rx buffer */
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void* rxbuf_last; /* -> last Rx buffer */
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unsigned rx_base; /* S508 receive buffer base */
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unsigned rx_top; /* S508 receive buffer end */
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unsigned char receive_only; /* high speed receivers */
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unsigned short protocol_options;
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unsigned short kpalv_tx; /* Tx kpalv timer */
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unsigned short kpalv_rx; /* Rx kpalv timer */
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unsigned short kpalv_err; /* Error tolerance */
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unsigned short slarp_timer; /* SLARP req timer */
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unsigned state; /* state of the link */
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unsigned char api_status;
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unsigned char update_call_count;
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unsigned short api_options; /* for async config */
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unsigned char async_mode;
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unsigned short tx_bits_per_char;
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unsigned short rx_bits_per_char;
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unsigned short stop_bits;
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unsigned short parity;
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unsigned short break_timer;
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unsigned short inter_char_timer;
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unsigned short rx_complete_length;
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unsigned short xon_char;
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unsigned short xoff_char;
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unsigned char comm_enabled; /* Is comm enabled or not */
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unsigned char backup;
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} c;
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struct
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{
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void* tx_status; /* Tx status element */
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void* rx_status; /* Rx status element */
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void* trace_status; /* Trace status element */
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void* txbuf; /* -> current Tx buffer */
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void* txbuf_base; /* -> first Tx buffer */
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void* txbuf_last; /* -> last Tx buffer */
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void* rxbuf_base; /* -> first Rx buffer */
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void* rxbuf_last; /* -> last Rx buffer */
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void* tracebuf; /* -> current Trace buffer */
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void* tracebuf_base; /* -> current Trace buffer */
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void* tracebuf_last; /* -> current Trace buffer */
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unsigned rx_base; /* receive buffer base */
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unsigned rx_end; /* receive buffer end */
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unsigned trace_base; /* trace buffer base */
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unsigned trace_end; /* trace buffer end */
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} h;
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} u;
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} sdla_t;
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/****** Public Functions ****************************************************/
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void wanpipe_open (sdla_t* card); /* wpmain.c */
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void wanpipe_close (sdla_t* card); /* wpmain.c */
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void wanpipe_set_state (sdla_t* card, int state); /* wpmain.c */
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int wpx_init (sdla_t* card, wandev_conf_t* conf); /* wpx.c */
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int wpf_init (sdla_t* card, wandev_conf_t* conf); /* wpf.c */
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int wpp_init (sdla_t* card, wandev_conf_t* conf); /* wpp.c */
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int wpc_init (sdla_t* card, wandev_conf_t* conf); /* Cisco HDLC */
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int bsc_init (sdla_t* card, wandev_conf_t* conf); /* BSC streaming */
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int hdlc_init(sdla_t* card, wandev_conf_t* conf); /* HDLC support */
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int wpft1_init (sdla_t* card, wandev_conf_t* conf); /* FT1 Config support */
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int wsppp_init (sdla_t* card, wandev_conf_t* conf); /* Sync PPP on top of RAW CHDLC */
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extern sdla_t * wanpipe_find_card(char *);
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extern sdla_t * wanpipe_find_card_num (int);
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extern void wanpipe_queue_work (struct work_struct *);
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extern void wanpipe_mark_bh (void);
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extern void wakeup_sk_bh(struct net_device *dev);
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extern int change_dev_flags(struct net_device *dev, unsigned flags);
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extern unsigned long get_ip_address(struct net_device *dev, int option);
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extern void add_gateway(sdla_t *card, struct net_device *dev);
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#endif /* __KERNEL__ */
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#endif /* _WANPIPE_H */
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