1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 ******************************************************************************/
20 #ifndef __OSDEP_SERVICE_H_
21 #define __OSDEP_SERVICE_H_
23 #include <basic_types.h>
27 #define RTW_RX_HANDLED 2
29 #include <linux/spinlock.h>
30 #include <linux/compiler.h>
31 #include <linux/kernel.h>
32 #include <linux/errno.h>
33 #include <linux/init.h>
34 #include <linux/slab.h>
35 #include <linux/module.h>
36 #include <linux/kref.h>
37 #include <linux/netdevice.h>
38 #include <linux/skbuff.h>
39 #include <linux/circ_buf.h>
40 #include <linux/uaccess.h>
41 #include <asm/byteorder.h>
42 #include <linux/atomic.h>
44 #include <linux/semaphore.h>
45 #include <linux/sem.h>
46 #include <linux/sched.h>
47 #include <linux/etherdevice.h>
48 #include <linux/wireless.h>
49 #include <net/iw_handler.h>
50 #include <linux/if_arp.h>
51 #include <linux/rtnetlink.h>
52 #include <linux/delay.h>
53 #include <linux/proc_fs.h> /* Necessary because we use the proc fs */
54 #include <linux/interrupt.h> /* for struct tasklet_struct */
56 #include <linux/kthread.h>
58 #include <linux/usb.h>
59 #include <linux/usb/ch9.h>
62 struct list_head queue;
66 #define thread_exit() complete_and_exit(NULL, 0)
68 static inline struct list_head *get_next(struct list_head *list)
73 static inline struct list_head *get_list_head(struct __queue *queue)
75 return (&(queue->queue));
79 #define LIST_CONTAINOR(ptr, type, member) \
80 ((type *)((char *)(ptr)-(size_t)(&((type *)0)->member)))
83 static inline void _enter_critical(spinlock_t *plock, unsigned long *pirqL)
85 spin_lock_irqsave(plock, *pirqL);
88 static inline void _exit_critical(spinlock_t *plock, unsigned long *pirqL)
90 spin_unlock_irqrestore(plock, *pirqL);
93 static inline void _enter_critical_ex(spinlock_t *plock, unsigned long *pirqL)
95 spin_lock_irqsave(plock, *pirqL);
98 static inline void _exit_critical_ex(spinlock_t *plock, unsigned long *pirqL)
100 spin_unlock_irqrestore(plock, *pirqL);
103 static inline void _enter_critical_bh(spinlock_t *plock, unsigned long *pirqL)
108 static inline void _exit_critical_bh(spinlock_t *plock, unsigned long *pirqL)
110 spin_unlock_bh(plock);
113 static inline int _enter_critical_mutex(struct mutex *pmutex, unsigned long *pirqL)
117 ret = mutex_lock_interruptible(pmutex);
122 static inline void _exit_critical_mutex(struct mutex *pmutex, unsigned long *pirqL)
124 mutex_unlock(pmutex);
127 static inline void rtw_list_delete(struct list_head *plist)
129 list_del_init(plist);
132 static inline void _init_timer(struct timer_list *ptimer,struct net_device *nic_hdl,void *pfunc,void* cntx)
134 ptimer->function = pfunc;
135 ptimer->data = (unsigned long)cntx;
139 static inline void _set_timer(struct timer_list *ptimer,u32 delay_time)
141 mod_timer(ptimer , (jiffies+(delay_time*HZ/1000)));
144 static inline void _cancel_timer(struct timer_list *ptimer,u8 *bcancelled)
146 del_timer_sync(ptimer);
147 *bcancelled= true;/* true ==1; false==0 */
150 #define RTW_TIMER_HDL_ARGS void *FunctionContext
151 #define RTW_TIMER_HDL_NAME(name) rtw_##name##_timer_hdl
152 #define RTW_DECLARE_TIMER_HDL(name) void RTW_TIMER_HDL_NAME(name)(RTW_TIMER_HDL_ARGS)
154 static inline void _init_workitem(struct work_struct *pwork, void *pfunc, void * cntx)
156 INIT_WORK(pwork, pfunc);
159 static inline void _set_workitem(struct work_struct *pwork)
161 schedule_work(pwork);
164 static inline void _cancel_workitem_sync(struct work_struct *pwork)
166 cancel_work_sync(pwork);
169 /* Global Mutex: can only be used at PASSIVE level. */
172 #define ACQUIRE_GLOBAL_MUTEX(_MutexCounter) \
174 while (atomic_inc_return((atomic_t *)&(_MutexCounter)) != 1)\
176 atomic_dec((atomic_t *)&(_MutexCounter)); \
181 #define RELEASE_GLOBAL_MUTEX(_MutexCounter) \
183 atomic_dec((atomic_t *)&(_MutexCounter)); \
186 static inline int rtw_netif_queue_stopped(struct net_device *pnetdev)
188 return netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 0)) &&
189 netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 1)) &&
190 netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 2)) &&
191 netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 3));
194 static inline void rtw_netif_wake_queue(struct net_device *pnetdev)
196 netif_tx_wake_all_queues(pnetdev);
199 static inline void rtw_netif_start_queue(struct net_device *pnetdev)
201 netif_tx_start_all_queues(pnetdev);
204 static inline void rtw_netif_stop_queue(struct net_device *pnetdev)
206 netif_tx_stop_all_queues(pnetdev);
210 #define BIT(x) ( 1 << (x))
213 #define BIT0 0x00000001
214 #define BIT1 0x00000002
215 #define BIT2 0x00000004
216 #define BIT3 0x00000008
217 #define BIT4 0x00000010
218 #define BIT5 0x00000020
219 #define BIT6 0x00000040
220 #define BIT7 0x00000080
221 #define BIT8 0x00000100
222 #define BIT9 0x00000200
223 #define BIT10 0x00000400
224 #define BIT11 0x00000800
225 #define BIT12 0x00001000
226 #define BIT13 0x00002000
227 #define BIT14 0x00004000
228 #define BIT15 0x00008000
229 #define BIT16 0x00010000
230 #define BIT17 0x00020000
231 #define BIT18 0x00040000
232 #define BIT19 0x00080000
233 #define BIT20 0x00100000
234 #define BIT21 0x00200000
235 #define BIT22 0x00400000
236 #define BIT23 0x00800000
237 #define BIT24 0x01000000
238 #define BIT25 0x02000000
239 #define BIT26 0x04000000
240 #define BIT27 0x08000000
241 #define BIT28 0x10000000
242 #define BIT29 0x20000000
243 #define BIT30 0x40000000
244 #define BIT31 0x80000000
245 #define BIT32 0x0100000000
246 #define BIT33 0x0200000000
247 #define BIT34 0x0400000000
248 #define BIT35 0x0800000000
249 #define BIT36 0x1000000000
251 extern int RTW_STATUS_CODE(int error_code);
253 /* flags used for rtw_update_mem_stat() */
255 MEM_STAT_VIR_ALLOC_SUCCESS,
256 MEM_STAT_VIR_ALLOC_FAIL,
258 MEM_STAT_PHY_ALLOC_SUCCESS,
259 MEM_STAT_PHY_ALLOC_FAIL,
261 MEM_STAT_TX, /* used to distinguish TX/RX, asigned from caller */
262 MEM_STAT_TX_ALLOC_SUCCESS,
263 MEM_STAT_TX_ALLOC_FAIL,
265 MEM_STAT_RX, /* used to distinguish TX/RX, asigned from caller */
266 MEM_STAT_RX_ALLOC_SUCCESS,
267 MEM_STAT_RX_ALLOC_FAIL,
271 extern unsigned char MCS_rate_2R[16];
272 extern unsigned char MCS_rate_1R[16];
273 extern unsigned char RTW_WPA_OUI[];
274 extern unsigned char WPA_TKIP_CIPHER[4];
275 extern unsigned char RSN_TKIP_CIPHER[4];
277 #define rtw_update_mem_stat(flag, sz) do {} while (0)
278 u8 *_rtw_vmalloc(u32 sz);
279 u8 *_rtw_zvmalloc(u32 sz);
280 void _rtw_vmfree(u8 *pbuf, u32 sz);
281 u8 *_rtw_zmalloc(u32 sz);
282 u8 *_rtw_malloc(u32 sz);
283 void _rtw_mfree(u8 *pbuf, u32 sz);
284 #define rtw_vmalloc(sz) _rtw_vmalloc((sz))
285 #define rtw_zvmalloc(sz) _rtw_zvmalloc((sz))
286 #define rtw_vmfree(pbuf, sz) _rtw_vmfree((pbuf), (sz))
287 #define rtw_malloc(sz) _rtw_malloc((sz))
288 #define rtw_zmalloc(sz) _rtw_zmalloc((sz))
289 #define rtw_mfree(pbuf, sz) _rtw_mfree((pbuf), (sz))
291 void *rtw_malloc2d(int h, int w, int size);
292 void rtw_mfree2d(void *pbuf, int h, int w, int size);
294 void _rtw_memcpy(void *dec, void *sour, u32 sz);
295 int _rtw_memcmp(void *dst, void *src, u32 sz);
296 void _rtw_memset(void *pbuf, int c, u32 sz);
298 void _rtw_init_listhead(struct list_head *list);
299 u32 rtw_is_list_empty(struct list_head *phead);
300 void rtw_list_insert_head(struct list_head *plist, struct list_head *phead);
301 void rtw_list_insert_tail(struct list_head *plist, struct list_head *phead);
302 void rtw_list_delete(struct list_head *plist);
304 void _rtw_init_sema(struct semaphore *sema, int init_val);
305 void _rtw_free_sema(struct semaphore *sema);
306 void _rtw_up_sema(struct semaphore *sema);
307 u32 _rtw_down_sema(struct semaphore *sema);
308 void _rtw_mutex_init(struct mutex *pmutex);
309 void _rtw_mutex_free(struct mutex *pmutex);
310 void _rtw_spinlock_init(spinlock_t *plock);
311 void _rtw_spinlock_free(spinlock_t *plock);
313 void _rtw_init_queue(struct __queue *pqueue);
314 u32 _rtw_queue_empty(struct __queue *pqueue);
315 u32 rtw_end_of_queue_search(struct list_head *queue, struct list_head *pelement);
317 u32 rtw_get_current_time(void);
318 u32 rtw_systime_to_ms(u32 systime);
319 u32 rtw_ms_to_systime(u32 ms);
320 s32 rtw_get_passing_time_ms(u32 start);
321 s32 rtw_get_time_interval_ms(u32 start, u32 end);
323 void rtw_sleep_schedulable(int ms);
325 void rtw_msleep_os(int ms);
326 void rtw_usleep_os(int us);
330 void rtw_mdelay_os(int ms);
331 void rtw_udelay_os(int us);
333 void rtw_yield_os(void);
335 static inline unsigned char _cancel_timer_ex(struct timer_list *ptimer)
337 return del_timer_sync(ptimer);
340 static __inline void thread_enter(char *name)
343 daemonize("%s", name);
345 allow_signal(SIGTERM);
348 static inline void flush_signals_thread(void)
350 if (signal_pending (current))
351 flush_signals(current);
354 static inline int res_to_status(int res)
359 #define _RND(sz, r) ((((sz)+((r)-1))/(r))*(r))
360 #define RND4(x) (((x >> 2) + (((x & 3) == 0) ? 0: 1)) << 2)
362 static inline u32 _RND4(u32 sz)
366 val = ((sz >> 2) + ((sz & 3) ? 1: 0)) << 2;
370 static inline u32 _RND8(u32 sz)
374 val = ((sz >> 3) + ((sz & 7) ? 1: 0)) << 3;
378 static inline u32 _RND128(u32 sz)
382 val = ((sz >> 7) + ((sz & 127) ? 1: 0)) << 7;
386 static inline u32 _RND256(u32 sz)
390 val = ((sz >> 8) + ((sz & 255) ? 1: 0)) << 8;
394 static inline u32 _RND512(u32 sz)
398 val = ((sz >> 9) + ((sz & 511) ? 1: 0)) << 9;
402 static inline u32 bitshift(u32 bitmask)
406 for (i = 0; i <= 31; i++)
407 if (((bitmask>>i) & 0x1) == 1) break;
411 /* limitation of path length */
412 #define PATH_LENGTH_MAX PATH_MAX
414 void rtw_suspend_lock_init(void);
415 void rtw_suspend_lock_uninit(void);
416 void rtw_lock_suspend(void);
417 void rtw_unlock_suspend(void);
419 /* Atomic integer operations */
420 #define ATOMIC_T atomic_t
422 void ATOMIC_SET(ATOMIC_T *v, int i);
423 int ATOMIC_READ(ATOMIC_T *v);
424 void ATOMIC_ADD(ATOMIC_T *v, int i);
425 void ATOMIC_SUB(ATOMIC_T *v, int i);
426 void ATOMIC_INC(ATOMIC_T *v);
427 void ATOMIC_DEC(ATOMIC_T *v);
428 int ATOMIC_ADD_RETURN(ATOMIC_T *v, int i);
429 int ATOMIC_SUB_RETURN(ATOMIC_T *v, int i);
430 int ATOMIC_INC_RETURN(ATOMIC_T *v);
431 int ATOMIC_DEC_RETURN(ATOMIC_T *v);
433 struct rtw_netdev_priv_indicator {
437 struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv,
439 struct net_device *rtw_alloc_etherdev(int sizeof_priv);
441 #define rtw_netdev_priv(netdev) \
442 (((struct rtw_netdev_priv_indicator *)netdev_priv(netdev))->priv)
443 void rtw_free_netdev(struct net_device *netdev);
445 #define NDEV_FMT "%s"
446 #define NDEV_ARG(ndev) ndev->name
447 #define ADPT_FMT "%s"
448 #define ADPT_ARG(adapter) adapter->pnetdev->name
449 #define FUNC_NDEV_FMT "%s(%s)"
450 #define FUNC_NDEV_ARG(ndev) __func__, ndev->name
451 #define FUNC_ADPT_FMT "%s(%s)"
452 #define FUNC_ADPT_ARG(adapter) __func__, adapter->pnetdev->name
454 #define rtw_signal_process(pid, sig) kill_pid(find_vpid((pid)),(sig), 1)
456 u64 rtw_modular64(u64 x, u64 y);
457 u64 rtw_division64(u64 x, u64 y);
459 /* Macros for handling unaligned memory accesses */
461 #define RTW_GET_BE16(a) ((u16) (((a)[0] << 8) | (a)[1]))
462 #define RTW_PUT_BE16(a, val) \
464 (a)[0] = ((u16) (val)) >> 8; \
465 (a)[1] = ((u16) (val)) & 0xff; \
468 #define RTW_GET_LE16(a) ((u16) (((a)[1] << 8) | (a)[0]))
469 #define RTW_PUT_LE16(a, val) \
471 (a)[1] = ((u16) (val)) >> 8; \
472 (a)[0] = ((u16) (val)) & 0xff; \
475 #define RTW_GET_BE24(a) ((((u32) (a)[0]) << 16) | (((u32) (a)[1]) << 8) | \
477 #define RTW_PUT_BE24(a, val) \
479 (a)[0] = (u8) ((((u32) (val)) >> 16) & 0xff); \
480 (a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff); \
481 (a)[2] = (u8) (((u32) (val)) & 0xff); \
484 #define RTW_GET_BE32(a) ((((u32) (a)[0]) << 24) | (((u32) (a)[1]) << 16) | \
485 (((u32) (a)[2]) << 8) | ((u32) (a)[3]))
486 #define RTW_PUT_BE32(a, val) \
488 (a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff); \
489 (a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff); \
490 (a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff); \
491 (a)[3] = (u8) (((u32) (val)) & 0xff); \
494 #define RTW_GET_LE32(a) ((((u32) (a)[3]) << 24) | (((u32) (a)[2]) << 16) | \
495 (((u32) (a)[1]) << 8) | ((u32) (a)[0]))
496 #define RTW_PUT_LE32(a, val) \
498 (a)[3] = (u8) ((((u32) (val)) >> 24) & 0xff); \
499 (a)[2] = (u8) ((((u32) (val)) >> 16) & 0xff); \
500 (a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff); \
501 (a)[0] = (u8) (((u32) (val)) & 0xff); \
504 #define RTW_GET_BE64(a) ((((u64) (a)[0]) << 56) | (((u64) (a)[1]) << 48) | \
505 (((u64) (a)[2]) << 40) | (((u64) (a)[3]) << 32) | \
506 (((u64) (a)[4]) << 24) | (((u64) (a)[5]) << 16) | \
507 (((u64) (a)[6]) << 8) | ((u64) (a)[7]))
508 #define RTW_PUT_BE64(a, val) \
510 (a)[0] = (u8) (((u64) (val)) >> 56); \
511 (a)[1] = (u8) (((u64) (val)) >> 48); \
512 (a)[2] = (u8) (((u64) (val)) >> 40); \
513 (a)[3] = (u8) (((u64) (val)) >> 32); \
514 (a)[4] = (u8) (((u64) (val)) >> 24); \
515 (a)[5] = (u8) (((u64) (val)) >> 16); \
516 (a)[6] = (u8) (((u64) (val)) >> 8); \
517 (a)[7] = (u8) (((u64) (val)) & 0xff); \
520 #define RTW_GET_LE64(a) ((((u64) (a)[7]) << 56) | (((u64) (a)[6]) << 48) | \
521 (((u64) (a)[5]) << 40) | (((u64) (a)[4]) << 32) | \
522 (((u64) (a)[3]) << 24) | (((u64) (a)[2]) << 16) | \
523 (((u64) (a)[1]) << 8) | ((u64) (a)[0]))
525 void rtw_buf_free(u8 **buf, u32 *buf_len);
526 void rtw_buf_update(u8 **buf, u32 *buf_len, u8 *src, u32 src_len);
535 bool rtw_cbuf_full(struct rtw_cbuf *cbuf);
536 bool rtw_cbuf_empty(struct rtw_cbuf *cbuf);
537 bool rtw_cbuf_push(struct rtw_cbuf *cbuf, void *buf);
538 void *rtw_cbuf_pop(struct rtw_cbuf *cbuf);
539 struct rtw_cbuf *rtw_cbuf_alloc(u32 size);
540 int wifirate2_ratetbl_inx(unsigned char rate);