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.
17 #ifndef _wl_mac80211_h_
18 #define _wl_mac80211_h_
20 #include <wlc_types.h>
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
26 typedef struct wl_timer {
27 struct timer_list timer;
30 void *arg; /* argument to fn */
34 struct wl_timer *next;
36 char *name; /* Description of the timer */
40 /* contortion to call functions at safe time */
41 /* In 2.6.20 kernels work functions get passed a pointer to the struct work, so things
42 * will continue to work as long as the work structure is the first component of the task structure.
44 typedef struct wl_task {
45 struct work_struct work;
50 uint subunit; /* WDS/BSS unit */
51 struct pci_dev *pci_dev;
57 const struct firmware *fw_bin[WL_MAX_FW];
58 const struct firmware *fw_hdr[WL_MAX_FW];
59 uint32 hdr_num_entries[WL_MAX_FW];
63 wlc_pub_t *pub; /* pointer to public wlc state */
64 void *wlc; /* pointer to private common os-independent data */
65 osl_t *osh; /* pointer to os handler */
71 struct semaphore sem; /* use semaphore to allow sleep */
73 spinlock_t lock; /* per-device perimeter lock */
74 spinlock_t isr_lock; /* per-device ISR synchronization lock */
76 uint bcm_bustype; /* bus type */
77 bool piomode; /* set from insmod argument */
78 void *regsva; /* opaque chip registers virtual address */
79 atomic_t callbacks; /* # outstanding callback functions */
80 struct wl_timer *timers; /* timer cleanup queue */
81 struct tasklet_struct tasklet; /* dpc tasklet */
83 bcmsdh_info_t *sdh; /* pointer to sdio bus handler */
84 ulong flags; /* current irq flags */
86 bool resched; /* dpc needs to be and is rescheduled */
88 uint32 pci_psstate[16]; /* pci ps-state save/restore */
90 /* RPC, handle, lock, txq, workitem */
92 rpc_info_t *rpc; /* RPC handle */
93 rpc_tp_info_t *rpc_th; /* RPC transport handle */
94 wlc_rpc_ctx_t rpc_dispatch_ctx;
96 bool rpcq_dispatched; /* Avoid scheduling multiple tasks */
97 spinlock_t rpcq_lock; /* Lock for the queue */
98 rpc_buf_t *rpcq_head; /* RPC Q */
99 rpc_buf_t *rpcq_tail; /* Points to the last buf */
101 bool txq_dispatched; /* Avoid scheduling multiple tasks */
102 spinlock_t txq_lock; /* Lock for the queue */
103 struct sk_buff *txq_head; /* TX Q */
104 struct sk_buff *txq_tail; /* Points to the last buf */
106 wl_task_t txq_task; /* work queue for wl_start() */
107 #endif /* WLC_HIGH_ONLY */
108 uint stats_id; /* the current set of stats */
109 /* ping-pong stats counters updated by Linux watchdog */
110 struct net_device_stats stats_watchdog[2];
112 struct proc_dir_entry *proc_entry;
114 unsigned int ioctlbuf_sz;
117 bool ioctl_in_progress;
118 struct wl_firmware fw;
120 #define WL_PROC_IDLE (0)
121 #define WL_PROC_HAVE_IOC (1)
122 #define WL_PROC_HAVE_BUF (2)
124 #ifndef WLC_HIGH_ONLY
125 #define WL_LOCK(wl) spin_lock_bh(&(wl)->lock)
126 #define WL_UNLOCK(wl) spin_unlock_bh(&(wl)->lock)
128 /* locking from inside wl_isr */
129 #define WL_ISRLOCK(wl, flags) do {spin_lock(&(wl)->isr_lock); (void)(flags);} while (0)
130 #define WL_ISRUNLOCK(wl, flags) do {spin_unlock(&(wl)->isr_lock); (void)(flags);} while (0)
132 /* locking under WL_LOCK() to synchronize with wl_isr */
133 #define INT_LOCK(wl, flags) spin_lock_irqsave(&(wl)->isr_lock, flags)
134 #define INT_UNLOCK(wl, flags) spin_unlock_irqrestore(&(wl)->isr_lock, flags)
137 #define WL_LOCK(wl) down(&(wl)->sem)
138 #define WL_UNLOCK(wl) up(&(wl)->sem)
140 #define WL_ISRLOCK(wl)
141 #define WL_ISRUNLOCK(wl)
142 #endif /* WLC_HIGH_ONLY */
144 /* handle forward declaration */
145 typedef struct wl_info wl_info_t;
155 /* exported functions */
157 extern irqreturn_t wl_isr(int irq, void *dev_id);
159 extern int __devinit wl_pci_probe(struct pci_dev *pdev,
160 const struct pci_device_id *ent);
161 extern void wl_free(wl_info_t * wl);
162 extern int wl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
163 extern int wl_ucode_data_init(wl_info_t * wl);
164 extern void wl_ucode_data_free(void);
166 extern void wl_ucode_free_buf(void *);
167 extern int wl_ucode_init_buf(wl_info_t * wl, void **pbuf, uint32 idx);
168 extern int wl_ucode_init_uint(wl_info_t * wl, uint32 * data, uint32 idx);
171 #endif /* _wl_mac80211_h_ */