drivers/isdn/act2000/act2000.h

   1 /* $Id: act2000.h,v 1.8.6.3 2001/09/23 22:24:32 kai Exp $
   2  *
   3  * ISDN lowlevel-module for the IBM ISDN-S0 Active 2000.
   4  *
   5  * Author       Fritz Elfert
   6  * Copyright    by Fritz Elfert      <fritz@isdn4linux.de>
   7  *
   8  * This software may be used and distributed according to the terms
   9  * of the GNU General Public License, incorporated herein by reference.
  10  *
  11  * Thanks to Friedemann Baitinger and IBM Germany
  12  *
  13  */
  14
  15 #ifndef act2000_h
  16 #define act2000_h
  17
  18 #include <linux/compiler.h>
  19
  20 #define ACT2000_IOCTL_SETPORT    1
  21 #define ACT2000_IOCTL_GETPORT    2
  22 #define ACT2000_IOCTL_SETIRQ     3
  23 #define ACT2000_IOCTL_GETIRQ     4
  24 #define ACT2000_IOCTL_SETBUS     5
  25 #define ACT2000_IOCTL_GETBUS     6
  26 #define ACT2000_IOCTL_SETPROTO   7
  27 #define ACT2000_IOCTL_GETPROTO   8
  28 #define ACT2000_IOCTL_SETMSN     9
  29 #define ACT2000_IOCTL_GETMSN    10
  30 #define ACT2000_IOCTL_LOADBOOT  11
  31 #define ACT2000_IOCTL_ADDCARD   12
  32
  33 #define ACT2000_IOCTL_TEST      98
  34 #define ACT2000_IOCTL_DEBUGVAR  99
  35
  36 #define ACT2000_BUS_ISA          1
  37 #define ACT2000_BUS_MCA          2
  38 #define ACT2000_BUS_PCMCIA       3
  39
  40 /* Struct for adding new cards */
  41 typedef struct act2000_cdef {
  42         int bus;
  43         int port;
  44         int irq;
  45         char id[10];
  46 } act2000_cdef;
  47
  48 /* Struct for downloading firmware */
  49 typedef struct act2000_ddef {
  50         int length;             /* Length of code */
  51         char __user *buffer;    /* Ptr. to code   */
  52 } act2000_ddef;
  53
  54 typedef struct act2000_fwid {
  55         char isdn[4];
  56         char revlen[2];
  57         char revision[504];
  58 } act2000_fwid;
  59
  60 #if defined(__KERNEL__) || defined(__DEBUGVAR__)
  61
  62 #ifdef __KERNEL__
  63 /* Kernel includes */
  64
  65 #include <linux/sched.h>
  66 #include <linux/string.h>
  67 #include <linux/workqueue.h>
  68 #include <linux/interrupt.h>
  69 #include <linux/skbuff.h>
  70 #include <linux/errno.h>
  71 #include <linux/fs.h>
  72 #include <linux/major.h>
  73 #include <asm/io.h>
  74 #include <linux/kernel.h>
  75 #include <linux/signal.h>
  76 #include <linux/slab.h>
  77 #include <linux/mm.h>
  78 #include <linux/mman.h>
  79 #include <linux/ioport.h>
  80 #include <linux/timer.h>
  81 #include <linux/wait.h>
  82 #include <linux/delay.h>
  83 #include <linux/ctype.h>
  84 #include <linux/isdnif.h>
  85
  86 #endif                           /* __KERNEL__ */
  87
  88 #define ACT2000_PORTLEN        8
  89
  90 #define ACT2000_FLAGS_RUNNING  1 /* Cards driver activated */
  91 #define ACT2000_FLAGS_PVALID   2 /* Cards port is valid    */
  92 #define ACT2000_FLAGS_IVALID   4 /* Cards irq is valid     */
  93 #define ACT2000_FLAGS_LOADED   8 /* Firmware loaded        */
  94
  95 #define ACT2000_BCH            2 /* # of channels per card */
  96
  97 /* D-Channel states */
  98 #define ACT2000_STATE_NULL     0
  99 #define ACT2000_STATE_ICALL    1
 100 #define ACT2000_STATE_OCALL    2
 101 #define ACT2000_STATE_IWAIT    3
 102 #define ACT2000_STATE_OWAIT    4
 103 #define ACT2000_STATE_IBWAIT   5
 104 #define ACT2000_STATE_OBWAIT   6
 105 #define ACT2000_STATE_BWAIT    7
 106 #define ACT2000_STATE_BHWAIT   8
 107 #define ACT2000_STATE_BHWAIT2  9
 108 #define ACT2000_STATE_DHWAIT  10
 109 #define ACT2000_STATE_DHWAIT2 11
 110 #define ACT2000_STATE_BSETUP  12
 111 #define ACT2000_STATE_ACTIVE  13
 112
 113 #define ACT2000_MAX_QUEUED  8000 /* 2 * maxbuff */
 114
 115 #define ACT2000_LOCK_TX 0
 116 #define ACT2000_LOCK_RX 1
 117
 118 typedef struct act2000_chan {
 119         unsigned short callref;          /* Call Reference              */
 120         unsigned short fsm_state;        /* Current D-Channel state     */
 121         unsigned short eazmask;          /* EAZ-Mask for this Channel   */
 122         short queued;                    /* User-Data Bytes in TX queue */
 123         unsigned short plci;
 124         unsigned short ncci;
 125         unsigned char  l2prot;           /* Layer 2 protocol            */
 126         unsigned char  l3prot;           /* Layer 3 protocol            */
 127 } act2000_chan;
 128
 129 typedef struct msn_entry {
 130         char eaz;
 131         char msn[16];
 132         struct msn_entry * next;
 133 } msn_entry;
 134
 135 typedef struct irq_data_isa {
 136         __u8           *rcvptr;
 137         __u16           rcvidx;
 138         __u16           rcvlen;
 139         struct sk_buff *rcvskb;
 140         __u8            rcvignore;
 141         __u8            rcvhdr[8];
 142 } irq_data_isa;
 143
 144 typedef union irq_data {
 145         irq_data_isa isa;
 146 } irq_data;
 147
 148 /*
 149  * Per card driver data
 150  */
 151 typedef struct act2000_card {
 152         unsigned short port;            /* Base-port-address                */
 153         unsigned short irq;             /* Interrupt                        */
 154         u_char ptype;                   /* Protocol type (1TR6 or Euro)     */
 155         u_char bus;                     /* Cardtype (ISA, MCA, PCMCIA)      */
 156         struct act2000_card *next;      /* Pointer to next device struct    */
 157         spinlock_t lock;                /* protect critical operations      */
 158         int myid;                       /* Driver-Nr. assigned by linklevel */
 159         unsigned long flags;            /* Statusflags                      */
 160         unsigned long ilock;            /* Semaphores for IRQ-Routines      */
 161         struct sk_buff_head rcvq;       /* Receive-Message queue            */
 162         struct sk_buff_head sndq;       /* Send-Message queue               */
 163         struct sk_buff_head ackq;       /* Data-Ack-Message queue           */
 164         u_char *ack_msg;                /* Ptr to User Data in User skb     */
 165         __u16 need_b3ack;               /* Flag: Need ACK for current skb   */
 166         struct sk_buff *sbuf;           /* skb which is currently sent      */
 167         struct timer_list ptimer;       /* Poll timer                       */
 168         struct work_struct snd_tq;      /* Task struct for xmit bh          */
 169         struct work_struct rcv_tq;      /* Task struct for rcv bh           */
 170         struct work_struct poll_tq;     /* Task struct for polled rcv bh    */
 171         msn_entry *msn_list;
 172         unsigned short msgnum;          /* Message number for sending       */
 173         spinlock_t mnlock;              /* lock for msgnum                  */
 174         act2000_chan bch[ACT2000_BCH];  /* B-Channel status/control         */
 175         char   status_buf[256];         /* Buffer for status messages       */
 176         char   *status_buf_read;
 177         char   *status_buf_write;
 178         char   *status_buf_end;
 179         irq_data idat;                  /* Data used for IRQ handler        */
 180         isdn_if interface;              /* Interface to upper layer         */
 181         char regname[35];               /* Name used for request_region     */
 182 } act2000_card;
 183
 184 static inline void act2000_schedule_tx(act2000_card *card)
 185 {
 186         schedule_work(&card->snd_tq);
 187 }
 188
 189 static inline void act2000_schedule_rx(act2000_card *card)
 190 {
 191         schedule_work(&card->rcv_tq);
 192 }
 193
 194 static inline void act2000_schedule_poll(act2000_card *card)
 195 {
 196         schedule_work(&card->poll_tq);
 197 }
 198
 199 extern char *act2000_find_eaz(act2000_card *, char);
 200
 201 #endif                          /* defined(__KERNEL__) || defined(__DEBUGVAR__) */
 202 #endif                          /* act2000_h */