106 lines
4.0 KiB
C
106 lines
4.0 KiB
C
/*
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* Copyright (c) 2010 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _BRCMF_BUS_H_
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#define _BRCMF_BUS_H_
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/* The level of bus communication with the dongle */
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enum brcmf_bus_state {
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BRCMF_BUS_DOWN, /* Not ready for frame transfers */
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BRCMF_BUS_LOAD, /* Download access only (CPU reset) */
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BRCMF_BUS_DATA /* Ready for frame transfers */
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};
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struct dngl_stats {
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unsigned long rx_packets; /* total packets received */
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unsigned long tx_packets; /* total packets transmitted */
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unsigned long rx_bytes; /* total bytes received */
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unsigned long tx_bytes; /* total bytes transmitted */
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unsigned long rx_errors; /* bad packets received */
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unsigned long tx_errors; /* packet transmit problems */
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unsigned long rx_dropped; /* packets dropped by dongle */
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unsigned long tx_dropped; /* packets dropped by dongle */
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unsigned long multicast; /* multicast packets received */
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};
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/* interface structure between common and bus layer */
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struct brcmf_bus {
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u8 type; /* bus type */
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void *bus_priv; /* pointer to bus private structure */
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void *drvr; /* pointer to driver pub structure brcmf_pub */
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enum brcmf_bus_state state;
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uint maxctl; /* Max size rxctl request from proto to bus */
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bool drvr_up; /* Status flag of driver up/down */
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unsigned long tx_realloc; /* Tx packets realloced for headroom */
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struct dngl_stats dstats; /* Stats for dongle-based data */
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u8 align; /* bus alignment requirement */
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/* interface functions pointers */
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/* Stop bus module: clear pending frames, disable data flow */
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void (*brcmf_bus_stop)(struct device *);
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/* Initialize bus module: prepare for communication w/dongle */
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int (*brcmf_bus_init)(struct device *);
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/* Send a data frame to the dongle. Callee disposes of txp. */
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int (*brcmf_bus_txdata)(struct device *, struct sk_buff *);
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/* Send/receive a control message to/from the dongle.
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* Expects caller to enforce a single outstanding transaction.
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*/
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int (*brcmf_bus_txctl)(struct device *, unsigned char *, uint);
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int (*brcmf_bus_rxctl)(struct device *, unsigned char *, uint);
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};
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/*
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* interface functions from common layer
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*/
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/* Remove any protocol-specific data header. */
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extern int brcmf_proto_hdrpull(struct device *dev, int *ifidx,
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struct sk_buff *rxp);
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extern bool brcmf_c_prec_enq(struct device *dev, struct pktq *q,
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struct sk_buff *pkt, int prec);
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/* Receive frame for delivery to OS. Callee disposes of rxp. */
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extern void brcmf_rx_frame(struct device *dev, int ifidx,
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struct sk_buff_head *rxlist);
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static inline void brcmf_rx_packet(struct device *dev, int ifidx,
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struct sk_buff *pkt)
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{
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struct sk_buff_head q;
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skb_queue_head_init(&q);
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skb_queue_tail(&q, pkt);
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brcmf_rx_frame(dev, ifidx, &q);
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}
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/* Indication from bus module regarding presence/insertion of dongle. */
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extern int brcmf_attach(uint bus_hdrlen, struct device *dev);
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/* Indication from bus module regarding removal/absence of dongle */
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extern void brcmf_detach(struct device *dev);
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/* Indication from bus module to change flow-control state */
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extern void brcmf_txflowcontrol(struct device *dev, int ifidx, bool on);
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/* Notify tx completion */
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extern void brcmf_txcomplete(struct device *dev, struct sk_buff *txp,
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bool success);
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extern int brcmf_bus_start(struct device *dev);
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extern int brcmf_add_if(struct device *dev, int ifidx,
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char *name, u8 *mac_addr);
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#endif /* _BRCMF_BUS_H_ */
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