drivers/staging/brcm80211/brcmfmac/dhd.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 /****************
  18  * Common types *
  19  */
  20
  21 #ifndef _dhd_h_
  22 #define _dhd_h_
  23
  24 #if defined(LINUX)
  25 #include <linux/sched.h>
  26 #include <linux/init.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/skbuff.h>
  30 #include <linux/netdevice.h>
  31 #include <linux/etherdevice.h>
  32 #include <linux/random.h>
  33 #include <linux/spinlock.h>
  34 #include <linux/ethtool.h>
  35 #include <asm/uaccess.h>
  36 #include <asm/unaligned.h>
  37 #if defined(CONFIG_HAS_WAKELOCK)
  38 #include <linux/wakelock.h>
  39 #endif                  /* defined (CONFIG_HAS_WAKELOCK) */
  40 /* The kernel threading is sdio-specific */
  41 #else                           /* LINUX */
  42 #define ENOMEM          1
  43 #define EFAULT      2
  44 #define EINVAL          3
  45 #define EIO                     4
  46 #define ETIMEDOUT       5
  47 #define ERESTARTSYS 6
  48 #endif                          /* LINUX */
  49
  50 #include <wlioctl.h>
  51
  52 /* Forward decls */
  53 struct dhd_bus;
  54 struct dhd_prot;
  55 struct dhd_info;
  56
  57 /* The level of bus communication with the dongle */
  58 enum dhd_bus_state {
  59         DHD_BUS_DOWN,           /* Not ready for frame transfers */
  60         DHD_BUS_LOAD,           /* Download access only (CPU reset) */
  61         DHD_BUS_DATA            /* Ready for frame transfers */
  62 };
  63
  64 enum dhd_bus_wake_state {
  65         WAKE_LOCK_OFF,
  66         WAKE_LOCK_PRIV,
  67         WAKE_LOCK_DPC,
  68         WAKE_LOCK_IOCTL,
  69         WAKE_LOCK_DOWNLOAD,
  70         WAKE_LOCK_TMOUT,
  71         WAKE_LOCK_WATCHDOG,
  72         WAKE_LOCK_LINK_DOWN_TMOUT,
  73         WAKE_LOCK_PNO_FIND_TMOUT,
  74         WAKE_LOCK_SOFTAP_SET,
  75         WAKE_LOCK_SOFTAP_STOP,
  76         WAKE_LOCK_SOFTAP_START,
  77         WAKE_LOCK_MAX
  78 };
  79 enum dhd_prealloc_index {
  80         DHD_PREALLOC_PROT = 0,
  81         DHD_PREALLOC_RXBUF,
  82         DHD_PREALLOC_DATABUF,
  83         DHD_PREALLOC_OSL_BUF
  84 };
  85 #ifdef DHD_USE_STATIC_BUF
  86 extern void *dhd_os_prealloc(int section, unsigned long size);
  87 #endif
  88 /* Common structure for module and instance linkage */
  89 typedef struct dhd_pub {
  90         /* Linkage ponters */
  91         osl_t *osh;             /* OSL handle */
  92         struct dhd_bus *bus;    /* Bus module handle */
  93         struct dhd_prot *prot;  /* Protocol module handle */
  94         struct dhd_info *info;  /* Info module handle */
  95
  96         /* Internal dhd items */
  97         bool up;                /* Driver up/down (to OS) */
  98         bool txoff;             /* Transmit flow-controlled */
  99         bool dongle_reset;      /* TRUE = DEVRESET put dongle into reset */
 100         enum dhd_bus_state busstate;
 101         uint hdrlen;            /* Total DHD header length (proto + bus) */
 102         uint maxctl;            /* Max size rxctl request from proto to bus */
 103         uint rxsz;              /* Rx buffer size bus module should use */
 104         u8 wme_dp;              /* wme discard priority */
 105
 106         /* Dongle media info */
 107         bool iswl;              /* Dongle-resident driver is wl */
 108         unsigned long drv_version;      /* Version of dongle-resident driver */
 109         struct ether_addr mac;  /* MAC address obtained from dongle */
 110         dngl_stats_t dstats;    /* Stats for dongle-based data */
 111
 112         /* Additional stats for the bus level */
 113         unsigned long tx_packets;       /* Data packets sent to dongle */
 114         unsigned long tx_multicast;     /* Multicast data packets sent to dongle */
 115         unsigned long tx_errors;        /* Errors in sending data to dongle */
 116         unsigned long tx_ctlpkts;       /* Control packets sent to dongle */
 117         unsigned long tx_ctlerrs;       /* Errors sending control frames to dongle */
 118         unsigned long rx_packets;       /* Packets sent up the network interface */
 119         unsigned long rx_multicast;     /* Multicast packets sent up the network
 120                                          interface */
 121         unsigned long rx_errors;        /* Errors processing rx data packets */
 122         unsigned long rx_ctlpkts;       /* Control frames processed from dongle */
 123         unsigned long rx_ctlerrs;       /* Errors in processing rx control frames */
 124         unsigned long rx_dropped;       /* Packets dropped locally (no memory) */
 125         unsigned long rx_flushed;       /* Packets flushed due to
 126                                 unscheduled sendup thread */
 127         unsigned long wd_dpc_sched;     /* Number of times dhd dpc scheduled by
 128                                          watchdog timer */
 129
 130         unsigned long rx_readahead_cnt; /* Number of packets where header read-ahead
 131                                          was used. */
 132         unsigned long tx_realloc;       /* Number of tx packets we had to realloc for
 133                                          headroom */
 134         unsigned long fc_packets;       /* Number of flow control pkts recvd */
 135
 136         /* Last error return */
 137         int bcmerror;
 138         uint tickcnt;
 139
 140         /* Last error from dongle */
 141         int dongle_error;
 142
 143         /* Suspend disable flag  flag */
 144         int suspend_disable_flag;       /* "1" to disable all extra powersaving
 145                                          during suspend */
 146         int in_suspend;         /* flag set to 1 when early suspend called */
 147 #ifdef PNO_SUPPORT
 148         int pno_enable;         /* pno status : "1" is pno enable */
 149 #endif                          /* PNO_SUPPORT */
 150         int dtim_skip;          /* dtim skip , default 0 means wake each dtim */
 151
 152         /* Pkt filter defination */
 153         char *pktfilter[100];
 154         int pktfilter_count;
 155
 156         u8 country_code[WLC_CNTRY_BUF_SZ];
 157         char eventmask[WL_EVENTING_MASK_LEN];
 158
 159 #if defined(CONFIG_HAS_WAKELOCK)
 160         struct wake_lock wakelock[WAKE_LOCK_MAX];
 161 #endif          /*  defined (CONFIG_HAS_WAKELOCK) */
 162 } dhd_pub_t;
 163
 164 #if defined(CONFIG_PM_SLEEP)
 165
 166 #define DHD_PM_RESUME_WAIT_INIT(a) DECLARE_WAIT_QUEUE_HEAD(a);
 167 #define _DHD_PM_RESUME_WAIT(a, b) do {\
 168                         int retry = 0; \
 169                         while (dhd_mmc_suspend && retry++ != b) { \
 170                                 wait_event_timeout(a, FALSE, HZ/100); \
 171                         } \
 172                 }       while (0)
 173 #define DHD_PM_RESUME_WAIT(a)   _DHD_PM_RESUME_WAIT(a, 30)
 174 #define DHD_PM_RESUME_WAIT_FOREVER(a)   _DHD_PM_RESUME_WAIT(a, ~0)
 175 #define DHD_PM_RESUME_RETURN_ERROR(a)   \
 176         do { if (dhd_mmc_suspend) return a; } while (0)
 177 #define DHD_PM_RESUME_RETURN    do { if (dhd_mmc_suspend) return; } while (0)
 178
 179 #define DHD_SPINWAIT_SLEEP_INIT(a) DECLARE_WAIT_QUEUE_HEAD(a);
 180 #define SPINWAIT_SLEEP(a, exp, us) do { \
 181                 uint countdown = (us) + 9999; \
 182                 while ((exp) && (countdown >= 10000)) { \
 183                         wait_event_timeout(a, FALSE, HZ/100); \
 184                         countdown -= 10000; \
 185                 } \
 186         } while (0)
 187
 188 #else
 189
 190 #define DHD_PM_RESUME_WAIT_INIT(a)
 191 #define DHD_PM_RESUME_WAIT(a)
 192 #define DHD_PM_RESUME_WAIT_FOREVER(a)
 193 #define DHD_PM_RESUME_RETURN_ERROR(a)
 194 #define DHD_PM_RESUME_RETURN
 195
 196 #define DHD_SPINWAIT_SLEEP_INIT(a)
 197 #define SPINWAIT_SLEEP(a, exp, us)  do { \
 198                 uint countdown = (us) + 9; \
 199                 while ((exp) && (countdown >= 10)) { \
 200                         OSL_DELAY(10);  \
 201                         countdown -= 10;  \
 202                 } \
 203         } while (0)
 204
 205 #endif  /* defined(CONFIG_PM_SLEEP) */
 206 #define DHD_IF_VIF      0x01    /* Virtual IF (Hidden from user) */
 207
 208 static inline void MUTEX_LOCK_INIT(dhd_pub_t *dhdp)
 209 {
 210 }
 211
 212 static inline void MUTEX_LOCK(dhd_pub_t *dhdp)
 213 {
 214 }
 215
 216 static inline void MUTEX_UNLOCK(dhd_pub_t *dhdp)
 217 {
 218 }
 219
 220 static inline void MUTEX_LOCK_SOFTAP_SET_INIT(dhd_pub_t *dhdp)
 221 {
 222 }
 223
 224 static inline void MUTEX_LOCK_SOFTAP_SET(dhd_pub_t *dhdp)
 225 {
 226 }
 227
 228 static inline void MUTEX_UNLOCK_SOFTAP_SET(dhd_pub_t *dhdp)
 229 {
 230 }
 231
 232 static inline void MUTEX_LOCK_WL_SCAN_SET_INIT(void)
 233 {
 234 }
 235
 236 static inline void MUTEX_LOCK_WL_SCAN_SET(void)
 237 {
 238 }
 239
 240 static inline void MUTEX_UNLOCK_WL_SCAN_SET(void)
 241 {
 242 }
 243
 244 static inline void WAKE_LOCK_INIT(dhd_pub_t *dhdp, int index, char *y)
 245 {
 246 #if defined(CONFIG_HAS_WAKELOCK)
 247         wake_lock_init(&dhdp->wakelock[index], WAKE_LOCK_SUSPEND, y);
 248 #endif  /* defined (CONFIG_HAS_WAKELOCK) */
 249 }
 250
 251 static inline void WAKE_LOCK(dhd_pub_t *dhdp, int index)
 252 {
 253 #if defined(CONFIG_HAS_WAKELOCK)
 254         wake_lock(&dhdp->wakelock[index]);
 255 #endif  /* defined (CONFIG_HAS_WAKELOCK) */
 256 }
 257
 258 static inline void WAKE_UNLOCK(dhd_pub_t *dhdp, int index)
 259 {
 260 #if defined(CONFIG_HAS_WAKELOCK)
 261         wake_unlock(&dhdp->wakelock[index]);
 262 #endif  /* defined (CONFIG_HAS_WAKELOCK) */
 263 }
 264
 265 static inline void WAKE_LOCK_TIMEOUT(dhd_pub_t *dhdp, int index, long time)
 266 {
 267 #if defined(CONFIG_HAS_WAKELOCK)
 268         wake_lock_timeout(&dhdp->wakelock[index], time);
 269 #endif  /* defined (CONFIG_HAS_WAKELOCK) */
 270 }
 271
 272 static inline void WAKE_LOCK_DESTROY(dhd_pub_t *dhdp, int index)
 273 {
 274 #if defined(CONFIG_HAS_WAKELOCK)
 275         wake_lock_destroy(&dhdp->wakelock[index]);
 276 #endif /* defined (CONFIG_HAS_WAKELOCK) */
 277 }
 278
 279 typedef struct dhd_if_event {
 280         u8 ifidx;
 281         u8 action;
 282         u8 flags;
 283         u8 bssidx;
 284 } dhd_if_event_t;
 285
 286 /*
 287  * Exported from dhd OS modules (dhd_linux/dhd_ndis)
 288  */
 289
 290 /* To allow osl_attach/detach calls from os-independent modules */
 291 osl_t *dhd_osl_attach(void *pdev, uint bustype);
 292 void dhd_osl_detach(osl_t *osh);
 293
 294 /* Indication from bus module regarding presence/insertion of dongle.
 295  * Return dhd_pub_t pointer, used as handle to OS module in later calls.
 296  * Returned structure should have bus and prot pointers filled in.
 297  * bus_hdrlen specifies required headroom for bus module header.
 298  */
 299 extern dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen);
 300 extern int dhd_net_attach(dhd_pub_t *dhdp, int idx);
 301
 302 /* Indication from bus module regarding removal/absence of dongle */
 303 extern void dhd_detach(dhd_pub_t *dhdp);
 304
 305 /* Indication from bus module to change flow-control state */
 306 extern void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool on);
 307
 308 extern bool dhd_prec_enq(dhd_pub_t *dhdp, struct pktq *q, void *pkt, int prec);
 309
 310 /* Receive frame for delivery to OS.  Callee disposes of rxp. */
 311 extern void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *rxp, int numpkt);
 312
 313 /* Return pointer to interface name */
 314 extern char *dhd_ifname(dhd_pub_t *dhdp, int idx);
 315
 316 /* Request scheduling of the bus dpc */
 317 extern void dhd_sched_dpc(dhd_pub_t *dhdp);
 318
 319 /* Notify tx completion */
 320 extern void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success);
 321
 322 /* Query ioctl */
 323 extern int dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
 324                               uint len);
 325
 326 /* OS independent layer functions */
 327 extern int dhd_os_proto_block(dhd_pub_t *pub);
 328 extern int dhd_os_proto_unblock(dhd_pub_t *pub);
 329 extern int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition,
 330                                   bool *pending);
 331 extern int dhd_os_ioctl_resp_wake(dhd_pub_t *pub);
 332 extern unsigned int dhd_os_get_ioctl_resp_timeout(void);
 333 extern void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec);
 334 extern void *dhd_os_open_image(char *filename);
 335 extern int dhd_os_get_image_block(char *buf, int len, void *image);
 336 extern void dhd_os_close_image(void *image);
 337 extern void dhd_os_wd_timer(void *bus, uint wdtick);
 338 extern void dhd_os_sdlock(dhd_pub_t *pub);
 339 extern void dhd_os_sdunlock(dhd_pub_t *pub);
 340 extern void dhd_os_sdlock_txq(dhd_pub_t *pub);
 341 extern void dhd_os_sdunlock_txq(dhd_pub_t *pub);
 342 extern void dhd_os_sdlock_rxq(dhd_pub_t *pub);
 343 extern void dhd_os_sdunlock_rxq(dhd_pub_t *pub);
 344 extern void dhd_os_sdlock_sndup_rxq(dhd_pub_t *pub);
 345 extern void dhd_customer_gpio_wlan_ctrl(int onoff);
 346 extern int dhd_custom_get_mac_address(unsigned char *buf);
 347 extern void dhd_os_sdunlock_sndup_rxq(dhd_pub_t *pub);
 348 extern void dhd_os_sdlock_eventq(dhd_pub_t *pub);
 349 extern void dhd_os_sdunlock_eventq(dhd_pub_t *pub);
 350 #ifdef DHD_DEBUG
 351 extern int write_to_file(dhd_pub_t *dhd, u8 *buf, int size);
 352 #endif                          /* DHD_DEBUG */
 353 #if defined(OOB_INTR_ONLY)
 354 extern int dhd_customer_oob_irq_map(unsigned long *irq_flags_ptr);
 355 #endif                          /* defined(OOB_INTR_ONLY) */
 356 extern void dhd_os_sdtxlock(dhd_pub_t *pub);
 357 extern void dhd_os_sdtxunlock(dhd_pub_t *pub);
 358
 359 int setScheduler(struct task_struct *p, int policy, struct sched_param *param);
 360
 361 typedef struct {
 362         uint32 limit;           /* Expiration time (usec) */
 363         uint32 increment;       /* Current expiration increment (usec) */
 364         uint32 elapsed;         /* Current elapsed time (usec) */
 365         uint32 tick;            /* O/S tick time (usec) */
 366 } dhd_timeout_t;
 367
 368 extern void dhd_timeout_start(dhd_timeout_t *tmo, uint usec);
 369 extern int dhd_timeout_expired(dhd_timeout_t *tmo);
 370
 371 extern int dhd_ifname2idx(struct dhd_info *dhd, char *name);
 372 extern u8 *dhd_bssidx2bssid(dhd_pub_t *dhd, int idx);
 373 extern int wl_host_event(struct dhd_info *dhd, int *idx, void *pktdata,
 374                          wl_event_msg_t *, void **data_ptr);
 375 extern void wl_event_to_host_order(wl_event_msg_t *evt);
 376
 377 extern void dhd_common_init(void);
 378
 379 extern int dhd_add_if(struct dhd_info *dhd, int ifidx, void *handle,
 380                       char *name, u8 *mac_addr, uint32 flags, u8 bssidx);
 381 extern void dhd_del_if(struct dhd_info *dhd, int ifidx);
 382
 383 extern void dhd_vif_add(struct dhd_info *dhd, int ifidx, char *name);
 384 extern void dhd_vif_del(struct dhd_info *dhd, int ifidx);
 385
 386 extern void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx);
 387 extern void dhd_vif_sendup(struct dhd_info *dhd, int ifidx, unsigned char * cp,
 388                            int len);
 389
 390 /* Send packet to dongle via data channel */
 391 extern int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pkt);
 392
 393 /* Send event to host */
 394 extern void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event,
 395                              void *data);
 396 extern int dhd_bus_devreset(dhd_pub_t *dhdp, u8 flag);
 397 extern uint dhd_bus_status(dhd_pub_t *dhdp);
 398 extern int dhd_bus_start(dhd_pub_t *dhdp);
 399
 400 extern void print_buf(void *pbuf, int len, int bytes_per_line);
 401
 402 typedef enum cust_gpio_modes {
 403         WLAN_RESET_ON,
 404         WLAN_RESET_OFF,
 405         WLAN_POWER_ON,
 406         WLAN_POWER_OFF
 407 } cust_gpio_modes_t;
 408 /*
 409  * Insmod parameters for debug/test
 410  */
 411
 412 /* Watchdog timer interval */
 413 extern uint dhd_watchdog_ms;
 414
 415 #if defined(DHD_DEBUG)
 416 /* Console output poll interval */
 417 extern uint dhd_console_ms;
 418 #endif                          /* defined(DHD_DEBUG) */
 419
 420 /* Use interrupts */
 421 extern uint dhd_intr;
 422
 423 /* Use polling */
 424 extern uint dhd_poll;
 425
 426 /* ARP offload agent mode */
 427 extern uint dhd_arp_mode;
 428
 429 /* ARP offload enable */
 430 extern uint dhd_arp_enable;
 431
 432 /* Pkt filte enable control */
 433 extern uint dhd_pkt_filter_enable;
 434
 435 /*  Pkt filter init setup */
 436 extern uint dhd_pkt_filter_init;
 437
 438 /* Pkt filter mode control */
 439 extern uint dhd_master_mode;
 440
 441 /* Roaming mode control */
 442 extern uint dhd_roam;
 443
 444 /* Roaming mode control */
 445 extern uint dhd_radio_up;
 446
 447 /* Initial idletime ticks (may be -1 for immediate idle, 0 for no idle) */
 448 extern int dhd_idletime;
 449 #define DHD_IDLETIME_TICKS 1
 450
 451 /* SDIO Drive Strength */
 452 extern uint dhd_sdiod_drive_strength;
 453
 454 /* Override to force tx queueing all the time */
 455 extern uint dhd_force_tx_queueing;
 456
 457 #ifdef SDTEST
 458 /* Echo packet generator (SDIO), pkts/s */
 459 extern uint dhd_pktgen;
 460
 461 /* Echo packet len (0 => sawtooth, max 1800) */
 462 extern uint dhd_pktgen_len;
 463 #define MAX_PKTGEN_LEN 1800
 464 #endif
 465
 466 /* optionally set by a module_param_string() */
 467 #define MOD_PARAM_PATHLEN       2048
 468 extern char fw_path[MOD_PARAM_PATHLEN];
 469 extern char nv_path[MOD_PARAM_PATHLEN];
 470
 471 /* For supporting multiple interfaces */
 472 #define DHD_MAX_IFS     16
 473 #define DHD_DEL_IF      -0xe
 474 #define DHD_BAD_IF      -0xf
 475
 476 extern void dhd_wait_for_event(dhd_pub_t *dhd, bool * lockvar);
 477 extern void dhd_wait_event_wakeup(dhd_pub_t *dhd);
 478
 479 #endif                          /* _dhd_h_ */