Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * rtl8712_cmd.c |
| 3 | * |
| 4 | * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. |
| 5 | * Linux device driver for RTL8192SU |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of version 2 of the GNU General Public License as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 14 | * more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License along with |
| 17 | * this program; if not, write to the Free Software Foundation, Inc., |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 19 | * |
| 20 | * Modifications for inclusion into the Linux staging tree are |
| 21 | * Copyright(c) 2010 Larry Finger. All rights reserved. |
| 22 | * |
| 23 | * Contact information: |
| 24 | * WLAN FAE <wlanfae@realtek.com>. |
| 25 | * Larry Finger <Larry.Finger@lwfinger.net> |
| 26 | * |
| 27 | ******************************************************************************/ |
| 28 | |
| 29 | #define _RTL8712_CMD_C_ |
| 30 | |
Ali Bahar | 359140a | 2011-09-04 03:14:11 +0800 | [diff] [blame] | 31 | #include <linux/compiler.h> |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/errno.h> |
Ali Bahar | 359140a | 2011-09-04 03:14:11 +0800 | [diff] [blame] | 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/usb.h> |
| 40 | #include <linux/usb/ch9.h> |
| 41 | #include <linux/circ_buf.h> |
| 42 | #include <linux/uaccess.h> |
| 43 | #include <asm/byteorder.h> |
| 44 | #include <linux/atomic.h> |
| 45 | #include <linux/semaphore.h> |
| 46 | #include <linux/rtnetlink.h> |
| 47 | |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 48 | #include "osdep_service.h" |
| 49 | #include "drv_types.h" |
| 50 | #include "recv_osdep.h" |
| 51 | #include "mlme_osdep.h" |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 52 | #include "rtl871x_ioctl_set.h" |
| 53 | |
| 54 | static void check_hw_pbc(struct _adapter *padapter) |
| 55 | { |
| 56 | u8 tmp1byte; |
| 57 | |
| 58 | r8712_write8(padapter, MAC_PINMUX_CTRL, (GPIOMUX_EN | GPIOSEL_GPIO)); |
| 59 | tmp1byte = r8712_read8(padapter, GPIO_IO_SEL); |
| 60 | tmp1byte &= ~(HAL_8192S_HW_GPIO_WPS_BIT); |
| 61 | r8712_write8(padapter, GPIO_IO_SEL, tmp1byte); |
| 62 | tmp1byte = r8712_read8(padapter, GPIO_CTRL); |
| 63 | if (tmp1byte == 0xff) |
Thomas Cort | 77e73e8 | 2013-10-01 11:26:55 -0400 | [diff] [blame] | 64 | return; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 65 | if (tmp1byte&HAL_8192S_HW_GPIO_WPS_BIT) { |
| 66 | /* Here we only set bPbcPressed to true |
| 67 | * After trigger PBC, the variable will be set to false */ |
| 68 | DBG_8712("CheckPbcGPIO - PBC is pressed !!!!\n"); |
| 69 | /* 0 is the default value and it means the application monitors |
Justin P. Mattock | be10ac2 | 2012-05-07 07:38:22 -0700 | [diff] [blame] | 70 | * the HW PBC doesn't provide its pid to driver. */ |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 71 | if (padapter->pid == 0) |
| 72 | return; |
| 73 | kill_pid(find_vpid(padapter->pid), SIGUSR1, 1); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | /* query rx phy status from fw. |
| 78 | * Adhoc mode: beacon. |
| 79 | * Infrastructure mode: beacon , data. */ |
| 80 | static void query_fw_rx_phy_status(struct _adapter *padapter) |
| 81 | { |
| 82 | u32 val32 = 0; |
| 83 | int pollingcnts = 50; |
| 84 | |
| 85 | if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == true) { |
| 86 | r8712_write32(padapter, IOCMD_CTRL_REG, 0xf4000001); |
| 87 | msleep(100); |
| 88 | /* Wait FW complete IO Cmd */ |
| 89 | while ((r8712_read32(padapter, IOCMD_CTRL_REG)) && |
| 90 | (pollingcnts > 0)) { |
| 91 | pollingcnts--; |
| 92 | msleep(20); |
| 93 | } |
| 94 | if (pollingcnts != 0) |
| 95 | val32 = r8712_read32(padapter, IOCMD_DATA_REG); |
| 96 | else /* time out */ |
| 97 | val32 = 0; |
| 98 | val32 = val32 >> 4; |
| 99 | padapter->recvpriv.fw_rssi = |
| 100 | (u8)r8712_signal_scale_mapping(val32); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | /* check mlme, hw, phy, or dynamic algorithm status. */ |
| 105 | static void StatusWatchdogCallback(struct _adapter *padapter) |
| 106 | { |
| 107 | check_hw_pbc(padapter); |
| 108 | query_fw_rx_phy_status(padapter); |
| 109 | } |
| 110 | |
| 111 | static void r871x_internal_cmd_hdl(struct _adapter *padapter, u8 *pbuf) |
| 112 | { |
| 113 | struct drvint_cmd_parm *pdrvcmd; |
| 114 | |
| 115 | if (!pbuf) |
| 116 | return; |
| 117 | pdrvcmd = (struct drvint_cmd_parm *)pbuf; |
| 118 | switch (pdrvcmd->i_cid) { |
| 119 | case WDG_WK_CID: |
| 120 | StatusWatchdogCallback(padapter); |
| 121 | break; |
| 122 | default: |
| 123 | break; |
| 124 | } |
| 125 | kfree(pdrvcmd->pbuf); |
| 126 | } |
| 127 | |
| 128 | static u8 read_macreg_hdl(struct _adapter *padapter, u8 *pbuf) |
| 129 | { |
| 130 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); |
| 131 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; |
| 132 | |
| 133 | /* invoke cmd->callback function */ |
| 134 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; |
| 135 | if (pcmd_callback == NULL) |
| 136 | r8712_free_cmd_obj(pcmd); |
| 137 | else |
| 138 | pcmd_callback(padapter, pcmd); |
| 139 | return H2C_SUCCESS; |
| 140 | } |
| 141 | |
| 142 | static u8 write_macreg_hdl(struct _adapter *padapter, u8 *pbuf) |
| 143 | { |
| 144 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); |
| 145 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; |
| 146 | |
| 147 | /* invoke cmd->callback function */ |
| 148 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; |
| 149 | if (pcmd_callback == NULL) |
| 150 | r8712_free_cmd_obj(pcmd); |
| 151 | else |
| 152 | pcmd_callback(padapter, pcmd); |
| 153 | return H2C_SUCCESS; |
| 154 | } |
| 155 | |
| 156 | static u8 read_bbreg_hdl(struct _adapter *padapter, u8 *pbuf) |
| 157 | { |
| 158 | u32 val; |
| 159 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); |
| 160 | struct readBB_parm *prdbbparm; |
| 161 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; |
| 162 | |
| 163 | prdbbparm = (struct readBB_parm *)pcmd->parmbuf; |
| 164 | if (pcmd->rsp && pcmd->rspsz > 0) |
| 165 | memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz); |
| 166 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; |
| 167 | if (pcmd_callback == NULL) |
| 168 | r8712_free_cmd_obj(pcmd); |
| 169 | else |
| 170 | pcmd_callback(padapter, pcmd); |
| 171 | return H2C_SUCCESS; |
| 172 | } |
| 173 | |
| 174 | static u8 write_bbreg_hdl(struct _adapter *padapter, u8 *pbuf) |
| 175 | { |
| 176 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); |
| 177 | struct writeBB_parm *pwritebbparm; |
| 178 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; |
| 179 | |
| 180 | pwritebbparm = (struct writeBB_parm *)pcmd->parmbuf; |
| 181 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; |
| 182 | if (pcmd_callback == NULL) |
| 183 | r8712_free_cmd_obj(pcmd); |
| 184 | else |
| 185 | pcmd_callback(padapter, pcmd); |
| 186 | return H2C_SUCCESS; |
| 187 | } |
| 188 | |
| 189 | static u8 read_rfreg_hdl(struct _adapter *padapter, u8 *pbuf) |
| 190 | { |
| 191 | u32 val; |
| 192 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); |
| 193 | struct readRF_parm *prdrfparm; |
| 194 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; |
| 195 | |
| 196 | prdrfparm = (struct readRF_parm *)pcmd->parmbuf; |
| 197 | if (pcmd->rsp && pcmd->rspsz > 0) |
| 198 | memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz); |
| 199 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; |
| 200 | if (pcmd_callback == NULL) |
| 201 | r8712_free_cmd_obj(pcmd); |
| 202 | else |
| 203 | pcmd_callback(padapter, pcmd); |
| 204 | return H2C_SUCCESS; |
| 205 | } |
| 206 | |
| 207 | static u8 write_rfreg_hdl(struct _adapter *padapter, u8 *pbuf) |
| 208 | { |
| 209 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); |
| 210 | struct writeRF_parm *pwriterfparm; |
| 211 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; |
| 212 | |
| 213 | pwriterfparm = (struct writeRF_parm *)pcmd->parmbuf; |
| 214 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; |
| 215 | if (pcmd_callback == NULL) |
| 216 | r8712_free_cmd_obj(pcmd); |
| 217 | else |
| 218 | pcmd_callback(padapter, pcmd); |
| 219 | return H2C_SUCCESS; |
| 220 | } |
| 221 | |
| 222 | static u8 sys_suspend_hdl(struct _adapter *padapter, u8 *pbuf) |
| 223 | { |
| 224 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; |
| 225 | struct usb_suspend_parm *psetusbsuspend; |
| 226 | |
| 227 | psetusbsuspend = (struct usb_suspend_parm *)pcmd->parmbuf; |
| 228 | r8712_free_cmd_obj(pcmd); |
| 229 | return H2C_SUCCESS; |
| 230 | } |
| 231 | |
| 232 | static struct cmd_obj *cmd_hdl_filter(struct _adapter *padapter, |
| 233 | struct cmd_obj *pcmd) |
| 234 | { |
| 235 | struct cmd_obj *pcmd_r; |
| 236 | |
| 237 | if (pcmd == NULL) |
| 238 | return pcmd; |
| 239 | pcmd_r = NULL; |
| 240 | |
| 241 | switch (pcmd->cmdcode) { |
| 242 | case GEN_CMD_CODE(_Read_MACREG): |
| 243 | read_macreg_hdl(padapter, (u8 *)pcmd); |
| 244 | pcmd_r = pcmd; |
| 245 | break; |
| 246 | case GEN_CMD_CODE(_Write_MACREG): |
| 247 | write_macreg_hdl(padapter, (u8 *)pcmd); |
| 248 | pcmd_r = pcmd; |
| 249 | break; |
| 250 | case GEN_CMD_CODE(_Read_BBREG): |
| 251 | read_bbreg_hdl(padapter, (u8 *)pcmd); |
| 252 | break; |
| 253 | case GEN_CMD_CODE(_Write_BBREG): |
| 254 | write_bbreg_hdl(padapter, (u8 *)pcmd); |
| 255 | break; |
| 256 | case GEN_CMD_CODE(_Read_RFREG): |
| 257 | read_rfreg_hdl(padapter, (u8 *)pcmd); |
| 258 | break; |
| 259 | case GEN_CMD_CODE(_Write_RFREG): |
| 260 | write_rfreg_hdl(padapter, (u8 *)pcmd); |
| 261 | break; |
| 262 | case GEN_CMD_CODE(_SetUsbSuspend): |
| 263 | sys_suspend_hdl(padapter, (u8 *)pcmd); |
| 264 | break; |
| 265 | case GEN_CMD_CODE(_JoinBss): |
| 266 | r8712_joinbss_reset(padapter); |
| 267 | /* Before set JoinBss_CMD to FW, driver must ensure FW is in |
| 268 | * PS_MODE_ACTIVE. Directly write rpwm to radio on and assign |
| 269 | * new pwr_mode to Driver, instead of use workitem to change |
| 270 | * state. */ |
| 271 | if (padapter->pwrctrlpriv.pwr_mode > PS_MODE_ACTIVE) { |
| 272 | padapter->pwrctrlpriv.pwr_mode = PS_MODE_ACTIVE; |
| 273 | _enter_pwrlock(&(padapter->pwrctrlpriv.lock)); |
| 274 | r8712_set_rpwm(padapter, PS_STATE_S4); |
| 275 | up(&(padapter->pwrctrlpriv.lock)); |
| 276 | } |
| 277 | pcmd_r = pcmd; |
| 278 | break; |
| 279 | case _DRV_INT_CMD_: |
| 280 | r871x_internal_cmd_hdl(padapter, pcmd->parmbuf); |
| 281 | r8712_free_cmd_obj(pcmd); |
| 282 | pcmd_r = NULL; |
| 283 | break; |
| 284 | default: |
| 285 | pcmd_r = pcmd; |
| 286 | break; |
| 287 | } |
| 288 | return pcmd_r; /* if returning pcmd_r == NULL, pcmd must be free. */ |
| 289 | } |
| 290 | |
| 291 | static u8 check_cmd_fifo(struct _adapter *padapter, uint sz) |
| 292 | { |
Peter Senna Tschudin | 8ffca9e | 2014-05-20 12:33:41 +0200 | [diff] [blame] | 293 | return _SUCCESS; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | u8 r8712_fw_cmd(struct _adapter *pAdapter, u32 cmd) |
| 297 | { |
| 298 | int pollingcnts = 50; |
| 299 | |
| 300 | r8712_write32(pAdapter, IOCMD_CTRL_REG, cmd); |
| 301 | msleep(100); |
| 302 | while ((0 != r8712_read32(pAdapter, IOCMD_CTRL_REG)) && |
| 303 | (pollingcnts > 0)) { |
| 304 | pollingcnts--; |
| 305 | msleep(20); |
| 306 | } |
| 307 | if (pollingcnts == 0) |
| 308 | return false; |
| 309 | return true; |
| 310 | } |
| 311 | |
| 312 | void r8712_fw_cmd_data(struct _adapter *pAdapter, u32 *value, u8 flag) |
| 313 | { |
| 314 | if (flag == 0) /* set */ |
| 315 | r8712_write32(pAdapter, IOCMD_DATA_REG, *value); |
| 316 | else /* query */ |
| 317 | *value = r8712_read32(pAdapter, IOCMD_DATA_REG); |
| 318 | } |
| 319 | |
| 320 | int r8712_cmd_thread(void *context) |
| 321 | { |
| 322 | struct cmd_obj *pcmd; |
| 323 | unsigned int cmdsz, wr_sz, *pcmdbuf, *prspbuf; |
| 324 | struct tx_desc *pdesc; |
| 325 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); |
| 326 | struct _adapter *padapter = (struct _adapter *)context; |
| 327 | struct cmd_priv *pcmdpriv = &(padapter->cmdpriv); |
| 328 | |
| 329 | thread_enter(padapter); |
| 330 | while (1) { |
| 331 | if ((_down_sema(&(pcmdpriv->cmd_queue_sema))) == _FAIL) |
| 332 | break; |
| 333 | if ((padapter->bDriverStopped == true) || |
| 334 | (padapter->bSurpriseRemoved == true)) |
| 335 | break; |
| 336 | if (r8712_register_cmd_alive(padapter) != _SUCCESS) |
| 337 | continue; |
| 338 | _next: |
| 339 | pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue)); |
| 340 | if (!(pcmd)) { |
| 341 | r8712_unregister_cmd_alive(padapter); |
| 342 | continue; |
| 343 | } |
| 344 | pcmdbuf = (unsigned int *)pcmdpriv->cmd_buf; |
| 345 | prspbuf = (unsigned int *)pcmdpriv->rsp_buf; |
| 346 | pdesc = (struct tx_desc *)pcmdbuf; |
| 347 | memset(pdesc, 0, TXDESC_SIZE); |
| 348 | pcmd = cmd_hdl_filter(padapter, pcmd); |
| 349 | if (pcmd) { /* if pcmd != NULL, cmd will be handled by f/w */ |
| 350 | struct dvobj_priv *pdvobj = (struct dvobj_priv *) |
| 351 | &padapter->dvobjpriv; |
| 352 | u8 blnPending = 0; |
| 353 | pcmdpriv->cmd_issued_cnt++; |
| 354 | cmdsz = _RND8((pcmd->cmdsz)); /* _RND8 */ |
| 355 | wr_sz = TXDESC_SIZE + 8 + cmdsz; |
| 356 | pdesc->txdw0 |= cpu_to_le32((wr_sz-TXDESC_SIZE) & |
| 357 | 0x0000ffff); |
| 358 | if (pdvobj->ishighspeed) { |
| 359 | if ((wr_sz % 512) == 0) |
| 360 | blnPending = 1; |
| 361 | } else { |
| 362 | if ((wr_sz % 64) == 0) |
| 363 | blnPending = 1; |
| 364 | } |
| 365 | if (blnPending) /* 32 bytes for TX Desc - 8 offset */ |
| 366 | pdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE + |
| 367 | OFFSET_SZ + 8) << OFFSET_SHT) & |
| 368 | 0x00ff0000); |
| 369 | else { |
| 370 | pdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE + |
| 371 | OFFSET_SZ) << |
| 372 | OFFSET_SHT) & |
| 373 | 0x00ff0000); |
| 374 | } |
| 375 | pdesc->txdw0 |= cpu_to_le32(OWN | FSG | LSG); |
| 376 | pdesc->txdw1 |= cpu_to_le32((0x13 << QSEL_SHT) & |
| 377 | 0x00001f00); |
| 378 | pcmdbuf += (TXDESC_SIZE >> 2); |
| 379 | *pcmdbuf = cpu_to_le32((cmdsz & 0x0000ffff) | |
| 380 | (pcmd->cmdcode << 16) | |
| 381 | (pcmdpriv->cmd_seq << 24)); |
Thomas Cort | 77e73e8 | 2013-10-01 11:26:55 -0400 | [diff] [blame] | 382 | pcmdbuf += 2; /* 8 bytes alignment */ |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 383 | memcpy((u8 *)pcmdbuf, pcmd->parmbuf, pcmd->cmdsz); |
| 384 | while (check_cmd_fifo(padapter, wr_sz) == _FAIL) { |
| 385 | if ((padapter->bDriverStopped == true) || |
| 386 | (padapter->bSurpriseRemoved == true)) |
| 387 | break; |
| 388 | msleep(100); |
| 389 | continue; |
| 390 | } |
| 391 | if (blnPending) |
| 392 | wr_sz += 8; /* Append 8 bytes */ |
| 393 | r8712_write_mem(padapter, RTL8712_DMA_H2CCMD, wr_sz, |
| 394 | (u8 *)pdesc); |
| 395 | pcmdpriv->cmd_seq++; |
| 396 | if (pcmd->cmdcode == GEN_CMD_CODE(_CreateBss)) { |
| 397 | pcmd->res = H2C_SUCCESS; |
| 398 | pcmd_callback = cmd_callback[pcmd-> |
| 399 | cmdcode].callback; |
| 400 | if (pcmd_callback) |
| 401 | pcmd_callback(padapter, pcmd); |
| 402 | continue; |
| 403 | } |
| 404 | if (pcmd->cmdcode == GEN_CMD_CODE(_SetPwrMode)) { |
| 405 | if (padapter->pwrctrlpriv.bSleep) { |
| 406 | _enter_pwrlock(&(padapter-> |
| 407 | pwrctrlpriv.lock)); |
| 408 | r8712_set_rpwm(padapter, PS_STATE_S2); |
| 409 | up(&padapter->pwrctrlpriv.lock); |
| 410 | } |
| 411 | } |
| 412 | r8712_free_cmd_obj(pcmd); |
| 413 | if (_queue_empty(&(pcmdpriv->cmd_queue))) { |
| 414 | r8712_unregister_cmd_alive(padapter); |
| 415 | continue; |
| 416 | } else |
| 417 | goto _next; |
| 418 | } else |
| 419 | goto _next; |
| 420 | flush_signals_thread(); |
| 421 | } |
| 422 | /* free all cmd_obj resources */ |
| 423 | do { |
| 424 | pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue)); |
| 425 | if (pcmd == NULL) |
| 426 | break; |
| 427 | r8712_free_cmd_obj(pcmd); |
| 428 | } while (1); |
| 429 | up(&pcmdpriv->terminate_cmdthread_sema); |
| 430 | thread_exit(); |
| 431 | } |
| 432 | |
| 433 | void r8712_event_handle(struct _adapter *padapter, uint *peventbuf) |
| 434 | { |
| 435 | u8 evt_code, evt_seq; |
| 436 | u16 evt_sz; |
| 437 | void (*event_callback)(struct _adapter *dev, u8 *pbuf); |
| 438 | struct evt_priv *pevt_priv = &(padapter->evtpriv); |
| 439 | |
| 440 | if (peventbuf == NULL) |
| 441 | goto _abort_event_; |
| 442 | evt_sz = (u16)(le32_to_cpu(*peventbuf) & 0xffff); |
| 443 | evt_seq = (u8)((le32_to_cpu(*peventbuf) >> 24) & 0x7f); |
| 444 | evt_code = (u8)((le32_to_cpu(*peventbuf) >> 16) & 0xff); |
| 445 | /* checking event sequence... */ |
| 446 | if ((evt_seq & 0x7f) != pevt_priv->event_seq) { |
| 447 | pevt_priv->event_seq = ((evt_seq + 1) & 0x7f); |
| 448 | goto _abort_event_; |
| 449 | } |
| 450 | /* checking if event code is valid */ |
| 451 | if (evt_code >= MAX_C2HEVT) { |
| 452 | pevt_priv->event_seq = ((evt_seq+1) & 0x7f); |
| 453 | goto _abort_event_; |
| 454 | } else if ((evt_code == GEN_EVT_CODE(_Survey)) && |
| 455 | (evt_sz > sizeof(struct wlan_bssid_ex))) { |
| 456 | pevt_priv->event_seq = ((evt_seq+1)&0x7f); |
| 457 | goto _abort_event_; |
| 458 | } |
| 459 | /* checking if event size match the event parm size */ |
| 460 | if ((wlanevents[evt_code].parmsize) && |
| 461 | (wlanevents[evt_code].parmsize != evt_sz)) { |
| 462 | pevt_priv->event_seq = ((evt_seq+1)&0x7f); |
| 463 | goto _abort_event_; |
| 464 | } else if ((evt_sz == 0) && (evt_code != GEN_EVT_CODE(_WPS_PBC))) { |
| 465 | pevt_priv->event_seq = ((evt_seq+1)&0x7f); |
| 466 | goto _abort_event_; |
| 467 | } |
| 468 | pevt_priv->event_seq++; /* update evt_seq */ |
| 469 | if (pevt_priv->event_seq > 127) |
| 470 | pevt_priv->event_seq = 0; |
Justin P. Mattock | be10ac2 | 2012-05-07 07:38:22 -0700 | [diff] [blame] | 471 | peventbuf = peventbuf + 2; /* move to event content, 8 bytes alignment */ |
Dan Carpenter | a376932 | 2013-09-28 12:58:33 +0300 | [diff] [blame] | 472 | event_callback = wlanevents[evt_code].event_callback; |
| 473 | if (event_callback) |
| 474 | event_callback(padapter, (u8 *)peventbuf); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 475 | pevt_priv->evt_done_cnt++; |
| 476 | _abort_event_: |
| 477 | return; |
| 478 | } |