drivers/staging/brcm80211/brcmsmac/wl_mac80211.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 _wl_mac80211_h_
  18 #define _wl_mac80211_h_
  19
  20 #include <wlc_types.h>
  21
  22 /* BMAC Note: High-only driver is no longer working in softirq context as it needs to block and
  23  * sleep so perimeter lock has to be a semaphore instead of spinlock. This requires timers to be
  24  * submitted to workqueue instead of being on kernel timer
  25  */
  26 typedef struct wl_timer {
  27         struct timer_list timer;
  28         struct wl_info *wl;
  29         void (*fn) (void *);
  30         void *arg;              /* argument to fn */
  31         uint ms;
  32         bool periodic;
  33         bool set;
  34         struct wl_timer *next;
  35 #ifdef BCMDBG
  36         char *name;             /* Description of the timer */
  37 #endif
  38 } wl_timer_t;
  39
  40 struct wl_if {
  41         uint subunit;           /* WDS/BSS unit */
  42         struct pci_dev *pci_dev;
  43 };
  44
  45 #define WL_MAX_FW               4
  46 struct wl_firmware {
  47         u32 fw_cnt;
  48         const struct firmware *fw_bin[WL_MAX_FW];
  49         const struct firmware *fw_hdr[WL_MAX_FW];
  50         u32 hdr_num_entries[WL_MAX_FW];
  51 };
  52
  53 struct wl_info {
  54         struct wlc_pub *pub;            /* pointer to public wlc state */
  55         void *wlc;              /* pointer to private common os-independent data */
  56         struct osl_info *osh;           /* pointer to os handler */
  57         u32 magic;
  58
  59         int irq;
  60
  61         spinlock_t lock;        /* per-device perimeter lock */
  62         spinlock_t isr_lock;    /* per-device ISR synchronization lock */
  63         uint bcm_bustype;       /* bus type */
  64         bool piomode;           /* set from insmod argument */
  65         void *regsva;           /* opaque chip registers virtual address */
  66         atomic_t callbacks;     /* # outstanding callback functions */
  67         struct wl_timer *timers;        /* timer cleanup queue */
  68         struct tasklet_struct tasklet;  /* dpc tasklet */
  69         bool resched;           /* dpc needs to be and is rescheduled */
  70 #ifdef LINUXSTA_PS
  71         u32 pci_psstate[16];    /* pci ps-state save/restore */
  72 #endif
  73         /* RPC, handle, lock, txq, workitem */
  74         uint stats_id;          /* the current set of stats */
  75         /* ping-pong stats counters updated by Linux watchdog */
  76         struct net_device_stats stats_watchdog[2];
  77         struct wl_firmware fw;
  78 };
  79
  80 #define WL_LOCK(wl)     spin_lock_bh(&(wl)->lock)
  81 #define WL_UNLOCK(wl)   spin_unlock_bh(&(wl)->lock)
  82
  83 /* locking from inside wl_isr */
  84 #define WL_ISRLOCK(wl, flags) do {spin_lock(&(wl)->isr_lock); (void)(flags); } while (0)
  85 #define WL_ISRUNLOCK(wl, flags) do {spin_unlock(&(wl)->isr_lock); (void)(flags); } while (0)
  86
  87 /* locking under WL_LOCK() to synchronize with wl_isr */
  88 #define INT_LOCK(wl, flags)     spin_lock_irqsave(&(wl)->isr_lock, flags)
  89 #define INT_UNLOCK(wl, flags)   spin_unlock_irqrestore(&(wl)->isr_lock, flags)
  90
  91 #ifndef PCI_D0
  92 #define PCI_D0          0
  93 #endif
  94
  95 #ifndef PCI_D3hot
  96 #define PCI_D3hot       3
  97 #endif
  98
  99 /* exported functions */
 100
 101 extern irqreturn_t wl_isr(int irq, void *dev_id);
 102
 103 extern int __devinit wl_pci_probe(struct pci_dev *pdev,
 104                                   const struct pci_device_id *ent);
 105 extern void wl_free(struct wl_info *wl);
 106 extern int wl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
 107
 108 #endif                          /* _wl_mac80211_h_ */