i386/linux-2.3.21/drivers/ap1000/mac.h

   1   /*
   2    * Copyright 1996 The Australian National University.
   3    * Copyright 1996 Fujitsu Laboratories Limited
   4    *
   5    * This software may be distributed under the terms of the Gnu
   6    * Public License version 2 or later
   7   */
   8 /*
   9  * Definitions of MAC state structures etc.
  10  */
  11
  12 struct mac_info {
  13     TimerTwosComplement tmax;
  14     TimerTwosComplement tvx;
  15     TimerTwosComplement treq;
  16     ShortAddressType    s_address;
  17     LongAddressType     l_address;
  18     ShortAddressType    s_group_adrs;
  19     LongAddressType     l_group_adrs;
  20     int                 rcv_own_frames;
  21     int                 only_good_frames;
  22 };
  23
  24
  25 struct mac_buf {
  26     struct mac_buf *next;
  27     int ack;
  28     int length;
  29     void *ptr;
  30     int wraplen;
  31     void *wrapptr;
  32     int fr_start;
  33     int fr_end;
  34 };
  35
  36 int mac_xmit_space(void);
  37 void mac_xmit_alloc(struct mac_buf *, int);
  38 void mac_queue_frame(struct mac_buf *);
  39 int mac_recv_frame(struct mac_buf *);
  40 void mac_discard_frame(struct mac_buf *);
  41 int mac_init(struct mac_info *mip);
  42 int mac_inited(struct mac_info *mip);
  43 void mac_reset(LoopbackType loopback);
  44 void mac_claim(void);
  45 void mac_sleep(void);
  46 void mac_poll(void);
  47 void mac_disable(void);
  48 void mac_make_spframes(void);
  49 int mac_xalloc(int nwords);
  50 int mac_xmit_dma(struct sk_buff *skb);
  51 void mac_dma_complete(void);
  52 void mac_process(void);
  53 int mac_queue_append(struct sk_buff *skb);
  54
  55 struct dma_chan {
  56     int cmd;                    /* cmd << 16 + size */
  57     int st;                     /* status << 16 + current size */
  58     int hskip;                  /* hskip << 16 + hcnt */
  59     int vskip;                  /* vskip << 16 + vcnt */
  60     unsigned char *maddr;       /* memory address */
  61     unsigned char *cmaddr;      /* current memory address */
  62     int ccount;                 /* h_count << 16 + v_count */
  63     int *tblp;                  /* table pointer */
  64     int *ctblp;                 /* current table pointer */
  65     unsigned char *hdptr;       /* header pointer */
  66 };
  67
  68 #define ROUND4(x)       (((x) + 3) & -4)
  69 #define ROUND8(x)       (((x) + 7) & -8)
  70 #define ROUND16(x)      (((x) + 15) & -16)
  71 #define ROUNDLINE(x)    ROUND16(x)
  72
  73 #define NWORDS(x)       (((x) + 3) >> 2)
  74 #define NLINES(x)       (((x) + 15) >> 4)
  75
  76 /*
  77  * Queue element used to queue transmit requests on the FDDI.
  78  */
  79 struct mac_queue {
  80     volatile struct mac_queue *next;
  81     struct sk_buff *skb;
  82 };