2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 /* The level of bus communication with the dongle */
21 enum brcmf_bus_state {
22 BRCMF_BUS_DOWN, /* Not ready for frame transfers */
23 BRCMF_BUS_LOAD, /* Download access only (CPU reset) */
24 BRCMF_BUS_DATA /* Ready for frame transfers */
28 unsigned long rx_packets; /* total packets received */
29 unsigned long tx_packets; /* total packets transmitted */
30 unsigned long rx_bytes; /* total bytes received */
31 unsigned long tx_bytes; /* total bytes transmitted */
32 unsigned long rx_errors; /* bad packets received */
33 unsigned long tx_errors; /* packet transmit problems */
34 unsigned long rx_dropped; /* packets dropped by dongle */
35 unsigned long tx_dropped; /* packets dropped by dongle */
36 unsigned long multicast; /* multicast packets received */
39 struct brcmf_bus_dcmd {
43 struct list_head list;
46 /* interface structure between common and bus layer */
48 u8 type; /* bus type */
50 struct brcmf_sdio_dev *sdio;
51 struct brcmf_usbdev *usb;
53 struct brcmf_pub *drvr; /* pointer to driver pub structure brcmf_pub */
54 enum brcmf_bus_state state;
55 uint maxctl; /* Max size rxctl request from proto to bus */
56 bool drvr_up; /* Status flag of driver up/down */
57 unsigned long tx_realloc; /* Tx packets realloced for headroom */
58 struct dngl_stats dstats; /* Stats for dongle-based data */
59 u8 align; /* bus alignment requirement */
60 struct list_head dcmd_list;
62 /* interface functions pointers */
63 /* Stop bus module: clear pending frames, disable data flow */
64 void (*brcmf_bus_stop)(struct device *);
65 /* Initialize bus module: prepare for communication w/dongle */
66 int (*brcmf_bus_init)(struct device *);
67 /* Send a data frame to the dongle. Callee disposes of txp. */
68 int (*brcmf_bus_txdata)(struct device *, struct sk_buff *);
69 /* Send/receive a control message to/from the dongle.
70 * Expects caller to enforce a single outstanding transaction.
72 int (*brcmf_bus_txctl)(struct device *, unsigned char *, uint);
73 int (*brcmf_bus_rxctl)(struct device *, unsigned char *, uint);
77 * interface functions from common layer
80 /* Remove any protocol-specific data header. */
81 extern int brcmf_proto_hdrpull(struct device *dev, int *ifidx,
84 extern bool brcmf_c_prec_enq(struct device *dev, struct pktq *q,
85 struct sk_buff *pkt, int prec);
87 /* Receive frame for delivery to OS. Callee disposes of rxp. */
88 extern void brcmf_rx_frame(struct device *dev, int ifidx,
89 struct sk_buff_head *rxlist);
90 static inline void brcmf_rx_packet(struct device *dev, int ifidx,
93 struct sk_buff_head q;
95 skb_queue_head_init(&q);
96 skb_queue_tail(&q, pkt);
97 brcmf_rx_frame(dev, ifidx, &q);
100 /* Indication from bus module regarding presence/insertion of dongle. */
101 extern int brcmf_attach(uint bus_hdrlen, struct device *dev);
102 /* Indication from bus module regarding removal/absence of dongle */
103 extern void brcmf_detach(struct device *dev);
105 /* Indication from bus module to change flow-control state */
106 extern void brcmf_txflowblock(struct device *dev, bool state);
108 /* Notify tx completion */
109 extern void brcmf_txcomplete(struct device *dev, struct sk_buff *txp,
112 extern int brcmf_bus_start(struct device *dev);
114 extern int brcmf_add_if(struct device *dev, int ifidx,
115 char *name, u8 *mac_addr);
117 #ifdef CONFIG_BRCMFMAC_SDIO
118 extern void brcmf_sdio_exit(void);
119 extern void brcmf_sdio_init(void);
121 #ifdef CONFIG_BRCMFMAC_USB
122 extern void brcmf_usb_exit(void);
123 extern void brcmf_usb_init(void);
126 #endif /* _BRCMF_BUS_H_ */