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1/*****************************************************************************
2* wanpipe.h WANPIPE(tm) Multiprotocol WAN Link Driver.
3* User-level API definitions.
4*
5* Author: Nenad Corbic <ncorbic@sangoma.com>
6* Gideon Hack
7*
8* Copyright: (c) 1995-2000 Sangoma Technologies Inc.
9*
10* This program is free software; you can redistribute it and/or
11* modify it under the terms of the GNU General Public License
12* as published by the Free Software Foundation; either version
13* 2 of the License, or (at your option) any later version.
14* ============================================================================
15* Nov 3, 2000 Nenad Corbic Added config_id to sdla_t structure.
16* Used to determine the protocol running.
17* Jul 13, 2000 Nenad Corbic Added SyncPPP Support
18* Feb 24, 2000 Nenad Corbic Added support for x25api driver
19* Oct 04, 1999 Nenad Corbic New CHDLC and FRAME RELAY code, SMP support
20* Jun 02, 1999 Gideon Hack Added 'update_call_count' for Cisco HDLC
21* support
22* Jun 26, 1998 David Fong Added 'ip_mode' in sdla_t.u.p for dynamic IP
23* routing mode configuration
24* Jun 12, 1998 David Fong Added Cisco HDLC union member in sdla_t
25* Dec 08, 1997 Jaspreet Singh Added 'authenticator' in union of 'sdla_t'
26* Nov 26, 1997 Jaspreet Singh Added 'load_sharing' structure. Also added
27* 'devs_struct','dev_to_devtint_next' to 'sdla_t'
28* Nov 24, 1997 Jaspreet Singh Added 'irq_dis_if_send_count',
29* 'irq_dis_poll_count' to 'sdla_t'.
30* Nov 06, 1997 Jaspreet Singh Added a define called 'INTR_TEST_MODE'
31* Oct 20, 1997 Jaspreet Singh Added 'buff_intr_mode_unbusy' and
32* 'dlci_intr_mode_unbusy' to 'sdla_t'
33* Oct 18, 1997 Jaspreet Singh Added structure to maintain global driver
34* statistics.
35* Jan 15, 1997 Gene Kozin Version 3.1.0
36* o added UDP management stuff
37* Jan 02, 1997 Gene Kozin Version 3.0.0
38*****************************************************************************/
39#ifndef _WANPIPE_H
40#define _WANPIPE_H
41
42#include <linux/wanrouter.h>
43
44/* Defines */
45
46#ifndef PACKED
47#define PACKED __attribute__((packed))
48#endif
49
50#define WANPIPE_MAGIC 0x414C4453L /* signature: 'SDLA' reversed */
51
52/* IOCTL numbers (up to 16) */
53#define WANPIPE_DUMP (ROUTER_USER+0) /* dump adapter's memory */
54#define WANPIPE_EXEC (ROUTER_USER+1) /* execute firmware command */
55
56#define TRACE_ALL 0x00
57#define TRACE_PROT 0x01
58#define TRACE_DATA 0x02
59
60/* values for request/reply byte */
61#define UDPMGMT_REQUEST 0x01
62#define UDPMGMT_REPLY 0x02
63#define UDP_OFFSET 12
64
65#define MAX_CMD_BUFF 10
66#define MAX_X25_LCN 255 /* Maximum number of x25 channels */
67#define MAX_LCN_NUM 4095 /* Maximum lcn number */
68#define MAX_FT1_RETRY 100
69
70#ifndef AF_WANPIPE
71 #define AF_WANPIPE 25
72 #ifndef PF_WANPIPE
73 #define PF_WANPIPE AF_WANPIPE
74 #endif
75#endif
76
77
78#define TX_TIMEOUT 5*HZ
79
80/* General Critical Flags */
81#define SEND_CRIT 0x00
82#define PERI_CRIT 0x01
83
84/* Chdlc and PPP polling critical flag */
85#define POLL_CRIT 0x03
86
87/* Frame Relay Tx IRQ send critical flag */
88#define SEND_TXIRQ_CRIT 0x02
89
90/* Frame Relay ARP critical flag */
91#define ARP_CRIT 0x03
92
93/* Bit maps for dynamic interface configuration
94 * DYN_OPT_ON : turns this option on/off
95 * DEV_DOWN : device was shutdown by the driver not
96 * by user
97 */
98#define DYN_OPT_ON 0x00
99#define DEV_DOWN 0x01
100
101/*
102 * Data structures for IOCTL calls.
103 */
104
105typedef struct sdla_dump /* WANPIPE_DUMP */
106{
107 unsigned long magic; /* for verification */
108 unsigned long offset; /* absolute adapter memory address */
109 unsigned long length; /* block length */
110 void* ptr; /* -> buffer */
111} sdla_dump_t;
112
113typedef struct sdla_exec /* WANPIPE_EXEC */
114{
115 unsigned long magic; /* for verification */
116 void* cmd; /* -> command structure */
117 void* data; /* -> data buffer */
118} sdla_exec_t;
119
120/* UDP management stuff */
121
122typedef struct wum_header
123{
124 unsigned char signature[8]; /* 00h: signature */
125 unsigned char type; /* 08h: request/reply */
126 unsigned char command; /* 09h: commnand */
127 unsigned char reserved[6]; /* 0Ah: reserved */
128} wum_header_t;
129
130/*************************************************************************
131 Data Structure for global statistics
132*************************************************************************/
133
134typedef struct global_stats
135{
136 unsigned long isr_entry;
137 unsigned long isr_already_critical;
138 unsigned long isr_rx;
139 unsigned long isr_tx;
140 unsigned long isr_intr_test;
141 unsigned long isr_spurious;
142 unsigned long isr_enable_tx_int;
143 unsigned long rx_intr_corrupt_rx_bfr;
144 unsigned long rx_intr_on_orphaned_DLCI;
145 unsigned long rx_intr_dev_not_started;
146 unsigned long tx_intr_dev_not_started;
147 unsigned long poll_entry;
148 unsigned long poll_already_critical;
149 unsigned long poll_processed;
150 unsigned long poll_tbusy_bad_status;
151 unsigned long poll_host_disable_irq;
152 unsigned long poll_host_enable_irq;
153
154} global_stats_t;
155
156
157typedef struct{
158 unsigned short udp_src_port PACKED;
159 unsigned short udp_dst_port PACKED;
160 unsigned short udp_length PACKED;
161 unsigned short udp_checksum PACKED;
162} udp_pkt_t;
163
164
165typedef struct {
166 unsigned char ver_inet_hdr_length PACKED;
167 unsigned char service_type PACKED;
168 unsigned short total_length PACKED;
169 unsigned short identifier PACKED;
170 unsigned short flags_frag_offset PACKED;
171 unsigned char ttl PACKED;
172 unsigned char protocol PACKED;
173 unsigned short hdr_checksum PACKED;
174 unsigned long ip_src_address PACKED;
175 unsigned long ip_dst_address PACKED;
176} ip_pkt_t;
177
178
179typedef struct {
180 unsigned char signature[8] PACKED;
181 unsigned char request_reply PACKED;
182 unsigned char id PACKED;
183 unsigned char reserved[6] PACKED;
184} wp_mgmt_t;
185
186/*************************************************************************
187 Data Structure for if_send statistics
188*************************************************************************/
189typedef struct if_send_stat{
190 unsigned long if_send_entry;
191 unsigned long if_send_skb_null;
192 unsigned long if_send_broadcast;
193 unsigned long if_send_multicast;
194 unsigned long if_send_critical_ISR;
195 unsigned long if_send_critical_non_ISR;
196 unsigned long if_send_tbusy;
197 unsigned long if_send_tbusy_timeout;
198 unsigned long if_send_PIPE_request;
199 unsigned long if_send_wan_disconnected;
200 unsigned long if_send_dlci_disconnected;
201 unsigned long if_send_no_bfrs;
202 unsigned long if_send_adptr_bfrs_full;
203 unsigned long if_send_bfr_passed_to_adptr;
204 unsigned long if_send_protocol_error;
205 unsigned long if_send_bfr_not_passed_to_adptr;
206 unsigned long if_send_tx_int_enabled;
207 unsigned long if_send_consec_send_fail;
208} if_send_stat_t;
209
210typedef struct rx_intr_stat{
211 unsigned long rx_intr_no_socket;
212 unsigned long rx_intr_dev_not_started;
213 unsigned long rx_intr_PIPE_request;
214 unsigned long rx_intr_bfr_not_passed_to_stack;
215 unsigned long rx_intr_bfr_passed_to_stack;
216} rx_intr_stat_t;
217
218typedef struct pipe_mgmt_stat{
219 unsigned long UDP_PIPE_mgmt_kmalloc_err;
220 unsigned long UDP_PIPE_mgmt_direction_err;
221 unsigned long UDP_PIPE_mgmt_adptr_type_err;
222 unsigned long UDP_PIPE_mgmt_adptr_cmnd_OK;
223 unsigned long UDP_PIPE_mgmt_adptr_cmnd_timeout;
224 unsigned long UDP_PIPE_mgmt_adptr_send_passed;
225 unsigned long UDP_PIPE_mgmt_adptr_send_failed;
226 unsigned long UDP_PIPE_mgmt_not_passed_to_stack;
227 unsigned long UDP_PIPE_mgmt_passed_to_stack;
228 unsigned long UDP_PIPE_mgmt_no_socket;
229 unsigned long UDP_PIPE_mgmt_passed_to_adptr;
230} pipe_mgmt_stat_t;
231
232
233typedef struct {
234 struct sk_buff *skb;
235} bh_data_t, cmd_data_t;
236
237#define MAX_LGTH_UDP_MGNT_PKT 2000
238
239
240/* This is used for interrupt testing */
241#define INTR_TEST_MODE 0x02
242
243#define WUM_SIGNATURE_L 0x50495046
244#define WUM_SIGNATURE_H 0x444E3845
245
246#define WUM_KILL 0x50
247#define WUM_EXEC 0x51
248
249#define WANPIPE 0x00
250#define API 0x01
251#define BRIDGE 0x02
252#define BRIDGE_NODE 0x03
253
254#ifdef __KERNEL__
255/****** Kernel Interface ****************************************************/
256
257#include <linux/sdladrv.h> /* SDLA support module API definitions */
258#include <linux/sdlasfm.h> /* SDLA firmware module definitions */
259#include <linux/workqueue.h>
260#include <linux/serial.h>
261#include <linux/serialP.h>
262#include <linux/serial_reg.h>
263#include <asm/serial.h>
264#include <linux/tty.h>
265#include <linux/tty_driver.h>
266#include <linux/tty_flip.h>
267
268
269#define is_digit(ch) (((ch)>=(unsigned)'0'&&(ch)<=(unsigned)'9')?1:0)
270#define is_alpha(ch) ((((ch)>=(unsigned)'a'&&(ch)<=(unsigned)'z')||\
271 ((ch)>=(unsigned)'A'&&(ch)<=(unsigned)'Z'))?1:0)
272#define is_hex_digit(ch) ((((ch)>=(unsigned)'0'&&(ch)<=(unsigned)'9')||\
273 ((ch)>=(unsigned)'a'&&(ch)<=(unsigned)'f')||\
274 ((ch)>=(unsigned)'A'&&(ch)<=(unsigned)'F'))?1:0)
275
276
277/****** Data Structures *****************************************************/
278
279/* Adapter Data Space.
280 * This structure is needed because we handle multiple cards, otherwise
281 * static data would do it.
282 */
283typedef struct sdla
284{
285 char devname[WAN_DRVNAME_SZ+1]; /* card name */
286 sdlahw_t hw; /* hardware configuration */
287 struct wan_device wandev; /* WAN device data space */
288
289 unsigned open_cnt; /* number of open interfaces */
290 unsigned long state_tick; /* link state timestamp */
291 unsigned intr_mode; /* Type of Interrupt Mode */
292 char in_isr; /* interrupt-in-service flag */
293 char buff_int_mode_unbusy; /* flag for carrying out dev_tint */
294 char dlci_int_mode_unbusy; /* flag for carrying out dev_tint */
295 long configured; /* flag for previous configurations */
296
297 unsigned short irq_dis_if_send_count; /* Disabling irqs in if_send*/
298 unsigned short irq_dis_poll_count; /* Disabling irqs in poll routine*/
299 unsigned short force_enable_irq;
300 char TracingEnabled; /* flag for enabling trace */
301 global_stats_t statistics; /* global statistics */
302 void* mbox; /* -> mailbox */
303 void* rxmb; /* -> receive mailbox */
304 void* flags; /* -> adapter status flags */
305 void (*isr)(struct sdla* card); /* interrupt service routine */
306 void (*poll)(struct sdla* card); /* polling routine */
307 int (*exec)(struct sdla* card, void* u_cmd, void* u_data);
308 /* Used by the listen() system call */
309 /* Wanpipe Socket Interface */
310 int (*func) (struct sk_buff *, struct sock *);
311 struct sock *sk;
312
313 /* Shutdown function */
314 void (*disable_comm) (struct sdla *card);
315
316 /* Secondary Port Device: Piggibacking */
317 struct sdla *next;
318
319 /* TTY driver variables */
320 unsigned char tty_opt;
321 struct tty_struct *tty;
322 unsigned int tty_minor;
323 unsigned int tty_open;
324 unsigned char *tty_buf;
325 unsigned char *tty_rx;
326 struct work_struct tty_work;
327
328 union
329 {
330 struct
331 { /****** X.25 specific data **********/
332 u32 lo_pvc;
333 u32 hi_pvc;
334 u32 lo_svc;
335 u32 hi_svc;
336 struct net_device *svc_to_dev_map[MAX_X25_LCN];
337 struct net_device *pvc_to_dev_map[MAX_X25_LCN];
338 struct net_device *tx_dev;
339 struct net_device *cmd_dev;
340 u32 no_dev;
341 volatile u8 *hdlc_buf_status;
342 u32 tx_interrupts_pending;
343 u16 timer_int_enabled;
344 struct net_device *poll_device;
345 atomic_t command_busy;
346
347 u16 udp_pkt_lgth;
348 u32 udp_type;
349 u8 udp_pkt_src;
350 u32 udp_lcn;
351 struct net_device *udp_dev;
352 s8 udp_pkt_data[MAX_LGTH_UDP_MGNT_PKT];
353
354 u8 LAPB_hdlc; /* Option to turn off X25 and run only LAPB */
355 u8 logging; /* Option to log call messages */
356 u8 oob_on_modem; /* Option to send modem status to the api */
357 u16 num_of_ch; /* Number of channels configured by the user */
358
359 struct work_struct x25_poll_work;
360 struct timer_list x25_timer;
361 } x;
362 struct
363 { /****** frame relay specific data ***/
364 void* rxmb_base; /* -> first Rx buffer */
365 void* rxmb_last; /* -> last Rx buffer */
366 unsigned rx_base; /* S508 receive buffer base */
367 unsigned rx_top; /* S508 receive buffer end */
368 unsigned short node_dlci[100];
369 unsigned short dlci_num;
370 struct net_device *dlci_to_dev_map[991 + 1];
371 unsigned tx_interrupts_pending;
372 unsigned short timer_int_enabled;
373 unsigned short udp_pkt_lgth;
374 int udp_type;
375 char udp_pkt_src;
376 unsigned udp_dlci;
377 char udp_pkt_data[MAX_LGTH_UDP_MGNT_PKT];
378 void* trc_el_base; /* first trace element */
379 void* trc_el_last; /* last trace element */
380 void *curr_trc_el; /* current trace element */
381 unsigned short trc_bfr_space; /* trace buffer space */
382 unsigned char update_comms_stats;
383 struct net_device *arp_dev;
384 spinlock_t if_send_lock;
385 } f;
386 struct /****** PPP-specific data ***********/
387 {
388 char if_name[WAN_IFNAME_SZ+1]; /* interface name */
389 void* txbuf; /* -> current Tx buffer */
390 void* txbuf_base; /* -> first Tx buffer */
391 void* txbuf_last; /* -> last Tx buffer */
392 void* rxbuf_base; /* -> first Rx buffer */
393 void* rxbuf_last; /* -> last Rx buffer */
394 unsigned rx_base; /* S508 receive buffer base */
395 unsigned rx_top; /* S508 receive buffer end */
396 char ip_mode; /* STATIC/HOST/PEER IP Mode */
397 char authenticator; /* Authenticator for PAP/CHAP */
398 unsigned char comm_enabled; /* Is comm enabled or not */
399 unsigned char peer_route; /* Process Peer Route */
400 unsigned long *txbuf_next; /* Next Tx buffer to use */
401 unsigned long *rxbuf_next; /* Next Rx buffer to use */
402 } p;
403 struct /* Cisco HDLC-specific data */
404 {
405 char if_name[WAN_IFNAME_SZ+1]; /* interface name */
406 unsigned char comm_port;/* Communication Port O or 1 */
407 unsigned char usedby; /* Used by WANPIPE or API */
408 void* rxmb; /* Receive mail box */
409 void* flags; /* flags */
410 void* tx_status; /* Tx status element */
411 void* rx_status; /* Rx status element */
412 void* txbuf; /* -> current Tx buffer */
413 void* txbuf_base; /* -> first Tx buffer */
414 void* txbuf_last; /* -> last Tx buffer */
415 void* rxbuf_base; /* -> first Rx buffer */
416 void* rxbuf_last; /* -> last Rx buffer */
417 unsigned rx_base; /* S508 receive buffer base */
418 unsigned rx_top; /* S508 receive buffer end */
419 unsigned char receive_only; /* high speed receivers */
420 unsigned short protocol_options;
421 unsigned short kpalv_tx; /* Tx kpalv timer */
422 unsigned short kpalv_rx; /* Rx kpalv timer */
423 unsigned short kpalv_err; /* Error tolerance */
424 unsigned short slarp_timer; /* SLARP req timer */
425 unsigned state; /* state of the link */
426 unsigned char api_status;
427 unsigned char update_call_count;
428 unsigned short api_options; /* for async config */
429 unsigned char async_mode;
430 unsigned short tx_bits_per_char;
431 unsigned short rx_bits_per_char;
432 unsigned short stop_bits;
433 unsigned short parity;
434 unsigned short break_timer;
435 unsigned short inter_char_timer;
436 unsigned short rx_complete_length;
437 unsigned short xon_char;
438 unsigned short xoff_char;
439 unsigned char comm_enabled; /* Is comm enabled or not */
440 unsigned char backup;
441 } c;
442 struct
443 {
444 void* tx_status; /* Tx status element */
445 void* rx_status; /* Rx status element */
446 void* trace_status; /* Trace status element */
447 void* txbuf; /* -> current Tx buffer */
448 void* txbuf_base; /* -> first Tx buffer */
449 void* txbuf_last; /* -> last Tx buffer */
450 void* rxbuf_base; /* -> first Rx buffer */
451 void* rxbuf_last; /* -> last Rx buffer */
452 void* tracebuf; /* -> current Trace buffer */
453 void* tracebuf_base; /* -> current Trace buffer */
454 void* tracebuf_last; /* -> current Trace buffer */
455 unsigned rx_base; /* receive buffer base */
456 unsigned rx_end; /* receive buffer end */
457 unsigned trace_base; /* trace buffer base */
458 unsigned trace_end; /* trace buffer end */
459
460 } h;
461 } u;
462} sdla_t;
463
464/****** Public Functions ****************************************************/
465
466void wanpipe_open (sdla_t* card); /* wpmain.c */
467void wanpipe_close (sdla_t* card); /* wpmain.c */
468void wanpipe_set_state (sdla_t* card, int state); /* wpmain.c */
469
470int wpx_init (sdla_t* card, wandev_conf_t* conf); /* wpx.c */
471int wpf_init (sdla_t* card, wandev_conf_t* conf); /* wpf.c */
472int wpp_init (sdla_t* card, wandev_conf_t* conf); /* wpp.c */
473int wpc_init (sdla_t* card, wandev_conf_t* conf); /* Cisco HDLC */
474int bsc_init (sdla_t* card, wandev_conf_t* conf); /* BSC streaming */
475int hdlc_init(sdla_t* card, wandev_conf_t* conf); /* HDLC support */
476int wpft1_init (sdla_t* card, wandev_conf_t* conf); /* FT1 Config support */
477int wsppp_init (sdla_t* card, wandev_conf_t* conf); /* Sync PPP on top of RAW CHDLC */
478
479extern sdla_t * wanpipe_find_card(char *);
480extern sdla_t * wanpipe_find_card_num (int);
481
482extern void wanpipe_queue_work (struct work_struct *);
483extern void wanpipe_mark_bh (void);
484extern void wakeup_sk_bh(struct net_device *dev);
485extern int change_dev_flags(struct net_device *dev, unsigned flags);
486extern unsigned long get_ip_address(struct net_device *dev, int option);
487extern void add_gateway(sdla_t *card, struct net_device *dev);
488
489
490#endif /* __KERNEL__ */
491#endif /* _WANPIPE_H */
492