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/*
* 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 _wl_mac80211_h_
#define _wl_mac80211_h_
#include <wlc_types.h>
/* BMAC Note: High-only driver is no longer working in softirq context as it needs to block and
* sleep so perimeter lock has to be a semaphore instead of spinlock. This requires timers to be
* submitted to workqueue instead of being on kernel timer
*/
typedef struct wl_timer {
struct timer_list timer;
struct wl_info *wl;
void (*fn) (void *);
void *arg; /* argument to fn */
uint ms;
bool periodic;
bool set;
struct wl_timer *next;
#ifdef BCMDBG
char *name; /* Description of the timer */
#endif
} wl_timer_t;
/* contortion to call functions at safe time */
/* In 2.6.20 kernels work functions get passed a pointer to the struct work, so things
* will continue to work as long as the work structure is the first component of the task structure.
*/
typedef struct wl_task {
struct work_struct work;
void *context;
} wl_task_t;
struct wl_if {
uint subunit; /* WDS/BSS unit */
struct pci_dev *pci_dev;
};
#define WL_MAX_FW 4
struct wl_firmware {
u32 fw_cnt;
const struct firmware *fw_bin[WL_MAX_FW];
const struct firmware *fw_hdr[WL_MAX_FW];
u32 hdr_num_entries[WL_MAX_FW];
};
struct wl_info {
wlc_pub_t *pub; /* pointer to public wlc state */
void *wlc; /* pointer to private common os-independent data */
osl_t *osh; /* pointer to os handler */
u32 magic;
int irq;
#ifdef WLC_HIGH_ONLY
struct semaphore sem; /* use semaphore to allow sleep */
#else
spinlock_t lock; /* per-device perimeter lock */
spinlock_t isr_lock; /* per-device ISR synchronization lock */
#endif
uint bcm_bustype; /* bus type */
bool piomode; /* set from insmod argument */
void *regsva; /* opaque chip registers virtual address */
atomic_t callbacks; /* # outstanding callback functions */
struct wl_timer *timers; /* timer cleanup queue */
struct tasklet_struct tasklet; /* dpc tasklet */
#ifdef BCMSDIO
bcmsdh_info_t *sdh; /* pointer to sdio bus handler */
unsigned long flags; /* current irq flags */
#endif /* BCMSDIO */
bool resched; /* dpc needs to be and is rescheduled */
#ifdef LINUXSTA_PS
u32 pci_psstate[16]; /* pci ps-state save/restore */
#endif
/* RPC, handle, lock, txq, workitem */
#ifdef WLC_HIGH_ONLY
rpc_info_t *rpc; /* RPC handle */
rpc_tp_info_t *rpc_th; /* RPC transport handle */
wlc_rpc_ctx_t rpc_dispatch_ctx;
bool rpcq_dispatched; /* Avoid scheduling multiple tasks */
spinlock_t rpcq_lock; /* Lock for the queue */
rpc_buf_t *rpcq_head; /* RPC Q */
rpc_buf_t *rpcq_tail; /* Points to the last buf */
bool txq_dispatched; /* Avoid scheduling multiple tasks */
spinlock_t txq_lock; /* Lock for the queue */
struct sk_buff *txq_head; /* TX Q */
struct sk_buff *txq_tail; /* Points to the last buf */
wl_task_t txq_task; /* work queue for wl_start() */
#endif /* WLC_HIGH_ONLY */
uint stats_id; /* the current set of stats */
/* ping-pong stats counters updated by Linux watchdog */
struct net_device_stats stats_watchdog[2];
struct wl_firmware fw;
};
#ifndef WLC_HIGH_ONLY
#define WL_LOCK(wl) spin_lock_bh(&(wl)->lock)
#define WL_UNLOCK(wl) spin_unlock_bh(&(wl)->lock)
/* locking from inside wl_isr */
#define WL_ISRLOCK(wl, flags) do {spin_lock(&(wl)->isr_lock); (void)(flags); } while (0)
#define WL_ISRUNLOCK(wl, flags) do {spin_unlock(&(wl)->isr_lock); (void)(flags); } while (0)
/* locking under WL_LOCK() to synchronize with wl_isr */
#define INT_LOCK(wl, flags) spin_lock_irqsave(&(wl)->isr_lock, flags)
#define INT_UNLOCK(wl, flags) spin_unlock_irqrestore(&(wl)->isr_lock, flags)
#else /* BCMSDIO */
#define WL_LOCK(wl) down(&(wl)->sem)
#define WL_UNLOCK(wl) up(&(wl)->sem)
#define WL_ISRLOCK(wl)
#define WL_ISRUNLOCK(wl)
#endif /* WLC_HIGH_ONLY */
/* handle forward declaration */
typedef struct wl_info wl_info_t;
#ifndef PCI_D0
#define PCI_D0 0
#endif
#ifndef PCI_D3hot
#define PCI_D3hot 3
#endif
/* exported functions */
extern irqreturn_t wl_isr(int irq, void *dev_id);
extern int __devinit wl_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent);
extern void wl_free(wl_info_t *wl);
extern int wl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
extern int wl_ucode_data_init(wl_info_t *wl);
extern void wl_ucode_data_free(void);
#ifdef WLC_LOW
extern void wl_ucode_free_buf(void *);
extern int wl_ucode_init_buf(wl_info_t *wl, void **pbuf, u32 idx);
extern int wl_ucode_init_uint(wl_info_t *wl, u32 *data, u32 idx);
#endif /* WLC_LOW */
#endif /* _wl_mac80211_h_ */
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