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/*
* Copyright 1996 The Australian National University.
* Copyright 1996 Fujitsu Laboratories Limited
*
* This software may be distributed under the terms of the Gnu
* Public License version 2 or later
*/
/*
* Definitions of MAC state structures etc.
*/
struct mac_info {
TimerTwosComplement tmax;
TimerTwosComplement tvx;
TimerTwosComplement treq;
ShortAddressType s_address;
LongAddressType l_address;
ShortAddressType s_group_adrs;
LongAddressType l_group_adrs;
int rcv_own_frames;
int only_good_frames;
};
struct mac_buf {
struct mac_buf *next;
int ack;
int length;
void *ptr;
int wraplen;
void *wrapptr;
int fr_start;
int fr_end;
};
int mac_xmit_space(void);
void mac_xmit_alloc(struct mac_buf *, int);
void mac_queue_frame(struct mac_buf *);
int mac_recv_frame(struct mac_buf *);
void mac_discard_frame(struct mac_buf *);
int mac_init(struct mac_info *mip);
int mac_inited(struct mac_info *mip);
void mac_reset(LoopbackType loopback);
void mac_claim(void);
void mac_sleep(void);
void mac_poll(void);
void mac_disable(void);
void mac_make_spframes(void);
int mac_xalloc(int nwords);
int mac_xmit_dma(struct sk_buff *skb);
void mac_dma_complete(void);
void mac_process(void);
int mac_queue_append(struct sk_buff *skb);
struct dma_chan {
int cmd; /* cmd << 16 + size */
int st; /* status << 16 + current size */
int hskip; /* hskip << 16 + hcnt */
int vskip; /* vskip << 16 + vcnt */
unsigned char *maddr; /* memory address */
unsigned char *cmaddr; /* current memory address */
int ccount; /* h_count << 16 + v_count */
int *tblp; /* table pointer */
int *ctblp; /* current table pointer */
unsigned char *hdptr; /* header pointer */
};
#define ROUND4(x) (((x) + 3) & -4)
#define ROUND8(x) (((x) + 7) & -8)
#define ROUND16(x) (((x) + 15) & -16)
#define ROUNDLINE(x) ROUND16(x)
#define NWORDS(x) (((x) + 3) >> 2)
#define NLINES(x) (((x) + 15) >> 4)
/*
* Queue element used to queue transmit requests on the FDDI.
*/
struct mac_queue {
volatile struct mac_queue *next;
struct sk_buff *skb;
};
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