drivers/staging/brcm80211/brcmfmac/dhd_bus.h

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   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.
   7  *
   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.
  15  */
  16
  17 #ifndef _BRCMF_BUS_H_
  18 #define _BRCMF_BUS_H_
  19
  20 /* Packet alignment for most efficient SDIO (can change based on platform) */
  21 #ifndef BRCMF_SDALIGN
  22 #define BRCMF_SDALIGN   32
  23 #endif
  24 #if !ISPOWEROF2(BRCMF_SDALIGN)
  25 #error BRCMF_SDALIGN is not a power of 2!
  26 #endif
  27
  28 /*
  29  * Exported from brcmf bus module (brcmf_usb, brcmf_sdio)
  30  */
  31
  32 /* Watchdog timer interval */
  33 extern uint brcmf_watchdog_ms;
  34
  35 /* Indicate (dis)interest in finding dongles. */
  36 extern int brcmf_bus_register(void);
  37 extern void brcmf_bus_unregister(void);
  38
  39 /* Stop bus module: clear pending frames, disable data flow */
  40 extern void brcmf_sdbrcm_bus_stop(struct brcmf_bus *bus, bool enforce_mutex);
  41
  42 /* Initialize bus module: prepare for communication w/dongle */
  43 extern int brcmf_sdbrcm_bus_init(struct brcmf_pub *drvr, bool enforce_mutex);
  44
  45 /* Send a data frame to the dongle.  Callee disposes of txp. */
  46 extern int brcmf_sdbrcm_bus_txdata(struct brcmf_bus *bus, struct sk_buff *txp);
  47
  48 /* Send/receive a control message to/from the dongle.
  49  * Expects caller to enforce a single outstanding transaction.
  50  */
  51 extern int
  52 brcmf_sdbrcm_bus_txctl(struct brcmf_bus *bus, unsigned char *msg, uint msglen);
  53
  54 extern int
  55 brcmf_sdbrcm_bus_rxctl(struct brcmf_bus *bus, unsigned char *msg, uint msglen);
  56
  57 /* Check for and handle local prot-specific iovar commands */
  58 extern int brcmf_sdbrcm_bus_iovar_op(struct brcmf_pub *drvr, const char *name,
  59                             void *params, int plen, void *arg, int len,
  60                             bool set);
  61
  62 /* Add bus dump output to a buffer */
  63 extern void brcmf_sdbrcm_bus_dump(struct brcmf_pub *drvr,
  64                                   struct brcmu_strbuf *strbuf);
  65
  66 /* Clear any bus counters */
  67 extern void brcmf_bus_clearcounts(struct brcmf_pub *drvr);
  68
  69 extern void brcmf_sdbrcm_wd_timer(struct brcmf_bus *bus, uint wdtick);
  70
  71 #endif                          /* _BRCMF_BUS_H_ */