drivers/staging/rtl8188eu/include/osdep_service.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   4  *
   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.
   8  *
   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
  12  * more details.
  13  *
  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
  17  *
  18  *
  19  ******************************************************************************/
  20 #ifndef __OSDEP_SERVICE_H_
  21 #define __OSDEP_SERVICE_H_
  22
  23 #include <basic_types.h>
  24
  25 #define _FAIL           0
  26 #define _SUCCESS        1
  27 #define RTW_RX_HANDLED  2
  28
  29 #include <linux/spinlock.h>
  30 #include <linux/compiler.h>
  31 #include <linux/kernel.h>
  32 #include <linux/errno.h>
  33 #include <linux/slab.h>
  34 #include <linux/module.h>
  35 #include <linux/kref.h>
  36 #include <linux/netdevice.h>
  37 #include <linux/skbuff.h>
  38 #include <linux/circ_buf.h>
  39 #include <linux/uaccess.h>
  40 #include <asm/byteorder.h>
  41 #include <linux/atomic.h>
  42 #include <linux/io.h>
  43 #include <linux/semaphore.h>
  44 #include <linux/sem.h>
  45 #include <linux/sched.h>
  46 #include <linux/etherdevice.h>
  47 #include <linux/wireless.h>
  48 #include <net/iw_handler.h>
  49 #include <linux/if_arp.h>
  50 #include <linux/rtnetlink.h>
  51 #include <linux/delay.h>
  52 #include <linux/proc_fs.h>      /*  Necessary because we use the proc fs */
  53 #include <linux/interrupt.h>    /*  for struct tasklet_struct */
  54 #include <linux/ip.h>
  55 #include <linux/kthread.h>
  56
  57 #include <linux/usb.h>
  58 #include <linux/usb/ch9.h>
  59
  60 struct  __queue {
  61         struct  list_head       queue;
  62         spinlock_t lock;
  63 };
  64
  65 static inline struct list_head *get_list_head(struct __queue *queue)
  66 {
  67         return &(queue->queue);
  68 }
  69
  70 static inline int _enter_critical_mutex(struct mutex *pmutex,
  71                                         unsigned long *pirqL)
  72 {
  73         int ret;
  74
  75         ret = mutex_lock_interruptible(pmutex);
  76         return ret;
  77 }
  78
  79 static inline void rtw_list_delete(struct list_head *plist)
  80 {
  81         list_del_init(plist);
  82 }
  83
  84 static inline void _init_timer(struct timer_list *ptimer,
  85                                struct  net_device *nic_hdl,
  86                                void *pfunc, void *cntx)
  87 {
  88         ptimer->function = pfunc;
  89         ptimer->data = (unsigned long)cntx;
  90         init_timer(ptimer);
  91 }
  92
  93 static inline void _set_timer(struct timer_list *ptimer, u32 delay_time)
  94 {
  95         mod_timer(ptimer , (jiffies+(delay_time*HZ/1000)));
  96 }
  97
  98 static inline void _cancel_timer(struct timer_list *ptimer, u8 *bcancelled)
  99 {
 100         del_timer_sync(ptimer);
 101         *bcancelled = true;/* true ==1; false==0 */
 102 }
 103
 104 #define RTW_TIMER_HDL_ARGS void *FunctionContext
 105 #define RTW_TIMER_HDL_NAME(name) rtw_##name##_timer_hdl
 106 #define RTW_DECLARE_TIMER_HDL(name) \
 107         void RTW_TIMER_HDL_NAME(name)(RTW_TIMER_HDL_ARGS)
 108
 109 static inline void _cancel_workitem_sync(struct work_struct *pwork)
 110 {
 111         cancel_work_sync(pwork);
 112 }
 113
 114 static inline int rtw_netif_queue_stopped(struct net_device *pnetdev)
 115 {
 116         return  netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 0)) &&
 117                 netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 1)) &&
 118                 netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 2)) &&
 119                 netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 3));
 120 }
 121
 122 #ifndef BIT
 123         #define BIT(x)  (1 << (x))
 124 #endif
 125
 126 #define BIT0    0x00000001
 127 #define BIT1    0x00000002
 128 #define BIT2    0x00000004
 129 #define BIT3    0x00000008
 130 #define BIT4    0x00000010
 131 #define BIT5    0x00000020
 132 #define BIT6    0x00000040
 133 #define BIT7    0x00000080
 134 #define BIT8    0x00000100
 135 #define BIT9    0x00000200
 136 #define BIT10   0x00000400
 137 #define BIT11   0x00000800
 138 #define BIT12   0x00001000
 139 #define BIT13   0x00002000
 140 #define BIT14   0x00004000
 141 #define BIT15   0x00008000
 142 #define BIT16   0x00010000
 143 #define BIT17   0x00020000
 144 #define BIT18   0x00040000
 145 #define BIT19   0x00080000
 146 #define BIT20   0x00100000
 147 #define BIT21   0x00200000
 148 #define BIT22   0x00400000
 149 #define BIT23   0x00800000
 150 #define BIT24   0x01000000
 151 #define BIT25   0x02000000
 152 #define BIT26   0x04000000
 153 #define BIT27   0x08000000
 154 #define BIT28   0x10000000
 155 #define BIT29   0x20000000
 156 #define BIT30   0x40000000
 157 #define BIT31   0x80000000
 158 #define BIT32   0x0100000000
 159 #define BIT33   0x0200000000
 160 #define BIT34   0x0400000000
 161 #define BIT35   0x0800000000
 162 #define BIT36   0x1000000000
 163
 164 extern int RTW_STATUS_CODE(int error_code);
 165
 166 /* flags used for rtw_update_mem_stat() */
 167 enum {
 168         MEM_STAT_VIR_ALLOC_SUCCESS,
 169         MEM_STAT_VIR_ALLOC_FAIL,
 170         MEM_STAT_VIR_FREE,
 171         MEM_STAT_PHY_ALLOC_SUCCESS,
 172         MEM_STAT_PHY_ALLOC_FAIL,
 173         MEM_STAT_PHY_FREE,
 174         MEM_STAT_TX, /* used to distinguish TX/RX, asigned from caller */
 175         MEM_STAT_TX_ALLOC_SUCCESS,
 176         MEM_STAT_TX_ALLOC_FAIL,
 177         MEM_STAT_TX_FREE,
 178         MEM_STAT_RX, /* used to distinguish TX/RX, asigned from caller */
 179         MEM_STAT_RX_ALLOC_SUCCESS,
 180         MEM_STAT_RX_ALLOC_FAIL,
 181         MEM_STAT_RX_FREE
 182 };
 183
 184 extern unsigned char MCS_rate_2R[16];
 185 extern unsigned char MCS_rate_1R[16];
 186 extern unsigned char RTW_WPA_OUI[];
 187 extern unsigned char WPA_TKIP_CIPHER[4];
 188 extern unsigned char RSN_TKIP_CIPHER[4];
 189
 190 #define rtw_update_mem_stat(flag, sz) do {} while (0)
 191 u8 *_rtw_malloc(u32 sz);
 192 void _rtw_mfree(u8 *pbuf, u32 sz);
 193 #define rtw_malloc(sz)                  _rtw_malloc((sz))
 194 #define rtw_mfree(pbuf, sz)             _rtw_mfree((pbuf), (sz))
 195
 196 void *rtw_malloc2d(int h, int w, int size);
 197
 198 void _rtw_memcpy(void *dec, void *sour, u32 sz);
 199
 200 void rtw_list_delete(struct list_head *plist);
 201
 202 u32  _rtw_down_sema(struct semaphore *sema);
 203
 204 void _rtw_init_queue(struct __queue *pqueue);
 205 u32  _rtw_queue_empty(struct __queue *pqueue);
 206
 207 u32  rtw_systime_to_ms(u32 systime);
 208 u32  rtw_ms_to_systime(u32 ms);
 209 s32  rtw_get_passing_time_ms(u32 start);
 210 s32  rtw_get_time_interval_ms(u32 start, u32 end);
 211
 212 static inline unsigned char _cancel_timer_ex(struct timer_list *ptimer)
 213 {
 214         return del_timer_sync(ptimer);
 215 }
 216
 217 static inline void thread_enter(char *name)
 218 {
 219         allow_signal(SIGTERM);
 220 }
 221
 222 static inline void flush_signals_thread(void)
 223 {
 224         if (signal_pending(current))
 225                 flush_signals(current);
 226 }
 227
 228 #define _RND(sz, r) ((((sz)+((r)-1))/(r))*(r))
 229 #define RND4(x) (((x >> 2) + (((x & 3) == 0) ?  0 : 1)) << 2)
 230
 231 static inline u32 _RND4(u32 sz)
 232 {
 233         u32     val;
 234
 235         val = ((sz >> 2) + ((sz & 3) ? 1 : 0)) << 2;
 236         return val;
 237 }
 238
 239 static inline u32 _RND8(u32 sz)
 240 {
 241         u32     val;
 242
 243         val = ((sz >> 3) + ((sz & 7) ? 1 : 0)) << 3;
 244         return val;
 245 }
 246
 247 static inline u32 _RND128(u32 sz)
 248 {
 249         u32     val;
 250
 251         val = ((sz >> 7) + ((sz & 127) ? 1 : 0)) << 7;
 252         return val;
 253 }
 254
 255 static inline u32 _RND256(u32 sz)
 256 {
 257         u32     val;
 258
 259         val = ((sz >> 8) + ((sz & 255) ? 1 : 0)) << 8;
 260         return val;
 261 }
 262
 263 static inline u32 _RND512(u32 sz)
 264 {
 265         u32     val;
 266
 267         val = ((sz >> 9) + ((sz & 511) ? 1 : 0)) << 9;
 268         return val;
 269 }
 270
 271 static inline u32 bitshift(u32 bitmask)
 272 {
 273         u32 i;
 274
 275         for (i = 0; i <= 31; i++)
 276                 if (((bitmask>>i) &  0x1) == 1)
 277                         break;
 278         return i;
 279 }
 280
 281 /*  limitation of path length */
 282 #define PATH_LENGTH_MAX PATH_MAX
 283
 284 struct rtw_netdev_priv_indicator {
 285         void *priv;
 286         u32 sizeof_priv;
 287 };
 288 struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv,
 289                                                     void *old_priv);
 290 struct net_device *rtw_alloc_etherdev(int sizeof_priv);
 291
 292 #define rtw_netdev_priv(netdev)                                 \
 293         (((struct rtw_netdev_priv_indicator *)netdev_priv(netdev))->priv)
 294 void rtw_free_netdev(struct net_device *netdev);
 295
 296 #define NDEV_FMT "%s"
 297 #define NDEV_ARG(ndev) ndev->name
 298 #define ADPT_FMT "%s"
 299 #define ADPT_ARG(adapter) adapter->pnetdev->name
 300 #define FUNC_NDEV_FMT "%s(%s)"
 301 #define FUNC_NDEV_ARG(ndev) __func__, ndev->name
 302 #define FUNC_ADPT_FMT "%s(%s)"
 303 #define FUNC_ADPT_ARG(adapter) __func__, adapter->pnetdev->name
 304
 305 #define rtw_signal_process(pid, sig) kill_pid(find_vpid((pid)), (sig), 1)
 306
 307 u64 rtw_modular64(u64 x, u64 y);
 308 u64 rtw_division64(u64 x, u64 y);
 309
 310 /* Macros for handling unaligned memory accesses */
 311
 312 #define RTW_GET_BE16(a) ((u16) (((a)[0] << 8) | (a)[1]))
 313 #define RTW_PUT_BE16(a, val)                    \
 314         do {                                    \
 315                 (a)[0] = ((u16) (val)) >> 8;    \
 316                 (a)[1] = ((u16) (val)) & 0xff;  \
 317         } while (0)
 318
 319 #define RTW_GET_LE16(a) ((u16) (((a)[1] << 8) | (a)[0]))
 320 #define RTW_PUT_LE16(a, val)                    \
 321         do {                                    \
 322                 (a)[1] = ((u16) (val)) >> 8;    \
 323                 (a)[0] = ((u16) (val)) & 0xff;  \
 324         } while (0)
 325
 326 #define RTW_GET_BE24(a) ((((u32) (a)[0]) << 16) | (((u32) (a)[1]) << 8) | \
 327                          ((u32) (a)[2]))
 328
 329 #define RTW_PUT_BE32(a, val)                                    \
 330         do {                                                    \
 331                 (a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff);   \
 332                 (a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff);   \
 333                 (a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff);    \
 334                 (a)[3] = (u8) (((u32) (val)) & 0xff);           \
 335         } while (0)
 336
 337 void rtw_buf_free(u8 **buf, u32 *buf_len);
 338 void rtw_buf_update(u8 **buf, u32 *buf_len, u8 *src, u32 src_len);
 339
 340 struct rtw_cbuf {
 341         u32 write;
 342         u32 read;
 343         u32 size;
 344         void *bufs[0];
 345 };
 346
 347 bool rtw_cbuf_full(struct rtw_cbuf *cbuf);
 348 bool rtw_cbuf_empty(struct rtw_cbuf *cbuf);
 349 bool rtw_cbuf_push(struct rtw_cbuf *cbuf, void *buf);
 350 void *rtw_cbuf_pop(struct rtw_cbuf *cbuf);
 351 struct rtw_cbuf *rtw_cbuf_alloc(u32 size);
 352 int wifirate2_ratetbl_inx(unsigned char rate);
 353
 354 #endif