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