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2865d42c LF |
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 | ||
31 | #include "osdep_service.h" | |
32 | #include "drv_types.h" | |
33 | #include "recv_osdep.h" | |
34 | #include "mlme_osdep.h" | |
35 | #include "rtl871x_byteorder.h" | |
36 | #include "rtl871x_ioctl_set.h" | |
37 | ||
38 | static void check_hw_pbc(struct _adapter *padapter) | |
39 | { | |
40 | u8 tmp1byte; | |
41 | ||
42 | r8712_write8(padapter, MAC_PINMUX_CTRL, (GPIOMUX_EN | GPIOSEL_GPIO)); | |
43 | tmp1byte = r8712_read8(padapter, GPIO_IO_SEL); | |
44 | tmp1byte &= ~(HAL_8192S_HW_GPIO_WPS_BIT); | |
45 | r8712_write8(padapter, GPIO_IO_SEL, tmp1byte); | |
46 | tmp1byte = r8712_read8(padapter, GPIO_CTRL); | |
47 | if (tmp1byte == 0xff) | |
48 | return ; | |
49 | if (tmp1byte&HAL_8192S_HW_GPIO_WPS_BIT) { | |
50 | /* Here we only set bPbcPressed to true | |
51 | * After trigger PBC, the variable will be set to false */ | |
52 | DBG_8712("CheckPbcGPIO - PBC is pressed !!!!\n"); | |
53 | /* 0 is the default value and it means the application monitors | |
54 | * the HW PBC doesn't privde its pid to driver. */ | |
55 | if (padapter->pid == 0) | |
56 | return; | |
57 | kill_pid(find_vpid(padapter->pid), SIGUSR1, 1); | |
58 | } | |
59 | } | |
60 | ||
61 | /* query rx phy status from fw. | |
62 | * Adhoc mode: beacon. | |
63 | * Infrastructure mode: beacon , data. */ | |
64 | static void query_fw_rx_phy_status(struct _adapter *padapter) | |
65 | { | |
66 | u32 val32 = 0; | |
67 | int pollingcnts = 50; | |
68 | ||
69 | if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == true) { | |
70 | r8712_write32(padapter, IOCMD_CTRL_REG, 0xf4000001); | |
71 | msleep(100); | |
72 | /* Wait FW complete IO Cmd */ | |
73 | while ((r8712_read32(padapter, IOCMD_CTRL_REG)) && | |
74 | (pollingcnts > 0)) { | |
75 | pollingcnts--; | |
76 | msleep(20); | |
77 | } | |
78 | if (pollingcnts != 0) | |
79 | val32 = r8712_read32(padapter, IOCMD_DATA_REG); | |
80 | else /* time out */ | |
81 | val32 = 0; | |
82 | val32 = val32 >> 4; | |
83 | padapter->recvpriv.fw_rssi = | |
84 | (u8)r8712_signal_scale_mapping(val32); | |
85 | } | |
86 | } | |
87 | ||
88 | /* check mlme, hw, phy, or dynamic algorithm status. */ | |
89 | static void StatusWatchdogCallback(struct _adapter *padapter) | |
90 | { | |
91 | check_hw_pbc(padapter); | |
92 | query_fw_rx_phy_status(padapter); | |
93 | } | |
94 | ||
95 | static void r871x_internal_cmd_hdl(struct _adapter *padapter, u8 *pbuf) | |
96 | { | |
97 | struct drvint_cmd_parm *pdrvcmd; | |
98 | ||
99 | if (!pbuf) | |
100 | return; | |
101 | pdrvcmd = (struct drvint_cmd_parm *)pbuf; | |
102 | switch (pdrvcmd->i_cid) { | |
103 | case WDG_WK_CID: | |
104 | StatusWatchdogCallback(padapter); | |
105 | break; | |
106 | default: | |
107 | break; | |
108 | } | |
109 | kfree(pdrvcmd->pbuf); | |
110 | } | |
111 | ||
112 | static u8 read_macreg_hdl(struct _adapter *padapter, u8 *pbuf) | |
113 | { | |
114 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); | |
115 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; | |
116 | ||
117 | /* invoke cmd->callback function */ | |
118 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; | |
119 | if (pcmd_callback == NULL) | |
120 | r8712_free_cmd_obj(pcmd); | |
121 | else | |
122 | pcmd_callback(padapter, pcmd); | |
123 | return H2C_SUCCESS; | |
124 | } | |
125 | ||
126 | static u8 write_macreg_hdl(struct _adapter *padapter, u8 *pbuf) | |
127 | { | |
128 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); | |
129 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; | |
130 | ||
131 | /* invoke cmd->callback function */ | |
132 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; | |
133 | if (pcmd_callback == NULL) | |
134 | r8712_free_cmd_obj(pcmd); | |
135 | else | |
136 | pcmd_callback(padapter, pcmd); | |
137 | return H2C_SUCCESS; | |
138 | } | |
139 | ||
140 | static u8 read_bbreg_hdl(struct _adapter *padapter, u8 *pbuf) | |
141 | { | |
142 | u32 val; | |
143 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); | |
144 | struct readBB_parm *prdbbparm; | |
145 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; | |
146 | ||
147 | prdbbparm = (struct readBB_parm *)pcmd->parmbuf; | |
148 | if (pcmd->rsp && pcmd->rspsz > 0) | |
149 | memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz); | |
150 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; | |
151 | if (pcmd_callback == NULL) | |
152 | r8712_free_cmd_obj(pcmd); | |
153 | else | |
154 | pcmd_callback(padapter, pcmd); | |
155 | return H2C_SUCCESS; | |
156 | } | |
157 | ||
158 | static u8 write_bbreg_hdl(struct _adapter *padapter, u8 *pbuf) | |
159 | { | |
160 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); | |
161 | struct writeBB_parm *pwritebbparm; | |
162 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; | |
163 | ||
164 | pwritebbparm = (struct writeBB_parm *)pcmd->parmbuf; | |
165 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; | |
166 | if (pcmd_callback == NULL) | |
167 | r8712_free_cmd_obj(pcmd); | |
168 | else | |
169 | pcmd_callback(padapter, pcmd); | |
170 | return H2C_SUCCESS; | |
171 | } | |
172 | ||
173 | static u8 read_rfreg_hdl(struct _adapter *padapter, u8 *pbuf) | |
174 | { | |
175 | u32 val; | |
176 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); | |
177 | struct readRF_parm *prdrfparm; | |
178 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; | |
179 | ||
180 | prdrfparm = (struct readRF_parm *)pcmd->parmbuf; | |
181 | if (pcmd->rsp && pcmd->rspsz > 0) | |
182 | memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz); | |
183 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; | |
184 | if (pcmd_callback == NULL) | |
185 | r8712_free_cmd_obj(pcmd); | |
186 | else | |
187 | pcmd_callback(padapter, pcmd); | |
188 | return H2C_SUCCESS; | |
189 | } | |
190 | ||
191 | static u8 write_rfreg_hdl(struct _adapter *padapter, u8 *pbuf) | |
192 | { | |
193 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); | |
194 | struct writeRF_parm *pwriterfparm; | |
195 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; | |
196 | ||
197 | pwriterfparm = (struct writeRF_parm *)pcmd->parmbuf; | |
198 | pcmd_callback = cmd_callback[pcmd->cmdcode].callback; | |
199 | if (pcmd_callback == NULL) | |
200 | r8712_free_cmd_obj(pcmd); | |
201 | else | |
202 | pcmd_callback(padapter, pcmd); | |
203 | return H2C_SUCCESS; | |
204 | } | |
205 | ||
206 | static u8 sys_suspend_hdl(struct _adapter *padapter, u8 *pbuf) | |
207 | { | |
208 | struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; | |
209 | struct usb_suspend_parm *psetusbsuspend; | |
210 | ||
211 | psetusbsuspend = (struct usb_suspend_parm *)pcmd->parmbuf; | |
212 | r8712_free_cmd_obj(pcmd); | |
213 | return H2C_SUCCESS; | |
214 | } | |
215 | ||
216 | static struct cmd_obj *cmd_hdl_filter(struct _adapter *padapter, | |
217 | struct cmd_obj *pcmd) | |
218 | { | |
219 | struct cmd_obj *pcmd_r; | |
220 | ||
221 | if (pcmd == NULL) | |
222 | return pcmd; | |
223 | pcmd_r = NULL; | |
224 | ||
225 | switch (pcmd->cmdcode) { | |
226 | case GEN_CMD_CODE(_Read_MACREG): | |
227 | read_macreg_hdl(padapter, (u8 *)pcmd); | |
228 | pcmd_r = pcmd; | |
229 | break; | |
230 | case GEN_CMD_CODE(_Write_MACREG): | |
231 | write_macreg_hdl(padapter, (u8 *)pcmd); | |
232 | pcmd_r = pcmd; | |
233 | break; | |
234 | case GEN_CMD_CODE(_Read_BBREG): | |
235 | read_bbreg_hdl(padapter, (u8 *)pcmd); | |
236 | break; | |
237 | case GEN_CMD_CODE(_Write_BBREG): | |
238 | write_bbreg_hdl(padapter, (u8 *)pcmd); | |
239 | break; | |
240 | case GEN_CMD_CODE(_Read_RFREG): | |
241 | read_rfreg_hdl(padapter, (u8 *)pcmd); | |
242 | break; | |
243 | case GEN_CMD_CODE(_Write_RFREG): | |
244 | write_rfreg_hdl(padapter, (u8 *)pcmd); | |
245 | break; | |
246 | case GEN_CMD_CODE(_SetUsbSuspend): | |
247 | sys_suspend_hdl(padapter, (u8 *)pcmd); | |
248 | break; | |
249 | case GEN_CMD_CODE(_JoinBss): | |
250 | r8712_joinbss_reset(padapter); | |
251 | /* Before set JoinBss_CMD to FW, driver must ensure FW is in | |
252 | * PS_MODE_ACTIVE. Directly write rpwm to radio on and assign | |
253 | * new pwr_mode to Driver, instead of use workitem to change | |
254 | * state. */ | |
255 | if (padapter->pwrctrlpriv.pwr_mode > PS_MODE_ACTIVE) { | |
256 | padapter->pwrctrlpriv.pwr_mode = PS_MODE_ACTIVE; | |
257 | _enter_pwrlock(&(padapter->pwrctrlpriv.lock)); | |
258 | r8712_set_rpwm(padapter, PS_STATE_S4); | |
259 | up(&(padapter->pwrctrlpriv.lock)); | |
260 | } | |
261 | pcmd_r = pcmd; | |
262 | break; | |
263 | case _DRV_INT_CMD_: | |
264 | r871x_internal_cmd_hdl(padapter, pcmd->parmbuf); | |
265 | r8712_free_cmd_obj(pcmd); | |
266 | pcmd_r = NULL; | |
267 | break; | |
268 | default: | |
269 | pcmd_r = pcmd; | |
270 | break; | |
271 | } | |
272 | return pcmd_r; /* if returning pcmd_r == NULL, pcmd must be free. */ | |
273 | } | |
274 | ||
275 | static u8 check_cmd_fifo(struct _adapter *padapter, uint sz) | |
276 | { | |
277 | u8 res = _SUCCESS; | |
278 | return res; | |
279 | } | |
280 | ||
281 | u8 r8712_fw_cmd(struct _adapter *pAdapter, u32 cmd) | |
282 | { | |
283 | int pollingcnts = 50; | |
284 | ||
285 | r8712_write32(pAdapter, IOCMD_CTRL_REG, cmd); | |
286 | msleep(100); | |
287 | while ((0 != r8712_read32(pAdapter, IOCMD_CTRL_REG)) && | |
288 | (pollingcnts > 0)) { | |
289 | pollingcnts--; | |
290 | msleep(20); | |
291 | } | |
292 | if (pollingcnts == 0) | |
293 | return false; | |
294 | return true; | |
295 | } | |
296 | ||
297 | void r8712_fw_cmd_data(struct _adapter *pAdapter, u32 *value, u8 flag) | |
298 | { | |
299 | if (flag == 0) /* set */ | |
300 | r8712_write32(pAdapter, IOCMD_DATA_REG, *value); | |
301 | else /* query */ | |
302 | *value = r8712_read32(pAdapter, IOCMD_DATA_REG); | |
303 | } | |
304 | ||
305 | int r8712_cmd_thread(void *context) | |
306 | { | |
307 | struct cmd_obj *pcmd; | |
308 | unsigned int cmdsz, wr_sz, *pcmdbuf, *prspbuf; | |
309 | struct tx_desc *pdesc; | |
310 | void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); | |
311 | struct _adapter *padapter = (struct _adapter *)context; | |
312 | struct cmd_priv *pcmdpriv = &(padapter->cmdpriv); | |
313 | ||
314 | thread_enter(padapter); | |
315 | while (1) { | |
316 | if ((_down_sema(&(pcmdpriv->cmd_queue_sema))) == _FAIL) | |
317 | break; | |
318 | if ((padapter->bDriverStopped == true) || | |
319 | (padapter->bSurpriseRemoved == true)) | |
320 | break; | |
321 | if (r8712_register_cmd_alive(padapter) != _SUCCESS) | |
322 | continue; | |
323 | _next: | |
324 | pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue)); | |
325 | if (!(pcmd)) { | |
326 | r8712_unregister_cmd_alive(padapter); | |
327 | continue; | |
328 | } | |
329 | pcmdbuf = (unsigned int *)pcmdpriv->cmd_buf; | |
330 | prspbuf = (unsigned int *)pcmdpriv->rsp_buf; | |
331 | pdesc = (struct tx_desc *)pcmdbuf; | |
332 | memset(pdesc, 0, TXDESC_SIZE); | |
333 | pcmd = cmd_hdl_filter(padapter, pcmd); | |
334 | if (pcmd) { /* if pcmd != NULL, cmd will be handled by f/w */ | |
335 | struct dvobj_priv *pdvobj = (struct dvobj_priv *) | |
336 | &padapter->dvobjpriv; | |
337 | u8 blnPending = 0; | |
338 | pcmdpriv->cmd_issued_cnt++; | |
339 | cmdsz = _RND8((pcmd->cmdsz)); /* _RND8 */ | |
340 | wr_sz = TXDESC_SIZE + 8 + cmdsz; | |
341 | pdesc->txdw0 |= cpu_to_le32((wr_sz-TXDESC_SIZE) & | |
342 | 0x0000ffff); | |
343 | if (pdvobj->ishighspeed) { | |
344 | if ((wr_sz % 512) == 0) | |
345 | blnPending = 1; | |
346 | } else { | |
347 | if ((wr_sz % 64) == 0) | |
348 | blnPending = 1; | |
349 | } | |
350 | if (blnPending) /* 32 bytes for TX Desc - 8 offset */ | |
351 | pdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE + | |
352 | OFFSET_SZ + 8) << OFFSET_SHT) & | |
353 | 0x00ff0000); | |
354 | else { | |
355 | pdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE + | |
356 | OFFSET_SZ) << | |
357 | OFFSET_SHT) & | |
358 | 0x00ff0000); | |
359 | } | |
360 | pdesc->txdw0 |= cpu_to_le32(OWN | FSG | LSG); | |
361 | pdesc->txdw1 |= cpu_to_le32((0x13 << QSEL_SHT) & | |
362 | 0x00001f00); | |
363 | pcmdbuf += (TXDESC_SIZE >> 2); | |
364 | *pcmdbuf = cpu_to_le32((cmdsz & 0x0000ffff) | | |
365 | (pcmd->cmdcode << 16) | | |
366 | (pcmdpriv->cmd_seq << 24)); | |
367 | pcmdbuf += 2 ; /* 8 bytes aligment */ | |
368 | memcpy((u8 *)pcmdbuf, pcmd->parmbuf, pcmd->cmdsz); | |
369 | while (check_cmd_fifo(padapter, wr_sz) == _FAIL) { | |
370 | if ((padapter->bDriverStopped == true) || | |
371 | (padapter->bSurpriseRemoved == true)) | |
372 | break; | |
373 | msleep(100); | |
374 | continue; | |
375 | } | |
376 | if (blnPending) | |
377 | wr_sz += 8; /* Append 8 bytes */ | |
378 | r8712_write_mem(padapter, RTL8712_DMA_H2CCMD, wr_sz, | |
379 | (u8 *)pdesc); | |
380 | pcmdpriv->cmd_seq++; | |
381 | if (pcmd->cmdcode == GEN_CMD_CODE(_CreateBss)) { | |
382 | pcmd->res = H2C_SUCCESS; | |
383 | pcmd_callback = cmd_callback[pcmd-> | |
384 | cmdcode].callback; | |
385 | if (pcmd_callback) | |
386 | pcmd_callback(padapter, pcmd); | |
387 | continue; | |
388 | } | |
389 | if (pcmd->cmdcode == GEN_CMD_CODE(_SetPwrMode)) { | |
390 | if (padapter->pwrctrlpriv.bSleep) { | |
391 | _enter_pwrlock(&(padapter-> | |
392 | pwrctrlpriv.lock)); | |
393 | r8712_set_rpwm(padapter, PS_STATE_S2); | |
394 | up(&padapter->pwrctrlpriv.lock); | |
395 | } | |
396 | } | |
397 | r8712_free_cmd_obj(pcmd); | |
398 | if (_queue_empty(&(pcmdpriv->cmd_queue))) { | |
399 | r8712_unregister_cmd_alive(padapter); | |
400 | continue; | |
401 | } else | |
402 | goto _next; | |
403 | } else | |
404 | goto _next; | |
405 | flush_signals_thread(); | |
406 | } | |
407 | /* free all cmd_obj resources */ | |
408 | do { | |
409 | pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue)); | |
410 | if (pcmd == NULL) | |
411 | break; | |
412 | r8712_free_cmd_obj(pcmd); | |
413 | } while (1); | |
414 | up(&pcmdpriv->terminate_cmdthread_sema); | |
415 | thread_exit(); | |
416 | } | |
417 | ||
418 | void r8712_event_handle(struct _adapter *padapter, uint *peventbuf) | |
419 | { | |
420 | u8 evt_code, evt_seq; | |
421 | u16 evt_sz; | |
422 | void (*event_callback)(struct _adapter *dev, u8 *pbuf); | |
423 | struct evt_priv *pevt_priv = &(padapter->evtpriv); | |
424 | ||
425 | if (peventbuf == NULL) | |
426 | goto _abort_event_; | |
427 | evt_sz = (u16)(le32_to_cpu(*peventbuf) & 0xffff); | |
428 | evt_seq = (u8)((le32_to_cpu(*peventbuf) >> 24) & 0x7f); | |
429 | evt_code = (u8)((le32_to_cpu(*peventbuf) >> 16) & 0xff); | |
430 | /* checking event sequence... */ | |
431 | if ((evt_seq & 0x7f) != pevt_priv->event_seq) { | |
432 | pevt_priv->event_seq = ((evt_seq + 1) & 0x7f); | |
433 | goto _abort_event_; | |
434 | } | |
435 | /* checking if event code is valid */ | |
436 | if (evt_code >= MAX_C2HEVT) { | |
437 | pevt_priv->event_seq = ((evt_seq+1) & 0x7f); | |
438 | goto _abort_event_; | |
439 | } else if ((evt_code == GEN_EVT_CODE(_Survey)) && | |
440 | (evt_sz > sizeof(struct wlan_bssid_ex))) { | |
441 | pevt_priv->event_seq = ((evt_seq+1)&0x7f); | |
442 | goto _abort_event_; | |
443 | } | |
444 | /* checking if event size match the event parm size */ | |
445 | if ((wlanevents[evt_code].parmsize) && | |
446 | (wlanevents[evt_code].parmsize != evt_sz)) { | |
447 | pevt_priv->event_seq = ((evt_seq+1)&0x7f); | |
448 | goto _abort_event_; | |
449 | } else if ((evt_sz == 0) && (evt_code != GEN_EVT_CODE(_WPS_PBC))) { | |
450 | pevt_priv->event_seq = ((evt_seq+1)&0x7f); | |
451 | goto _abort_event_; | |
452 | } | |
453 | pevt_priv->event_seq++; /* update evt_seq */ | |
454 | if (pevt_priv->event_seq > 127) | |
455 | pevt_priv->event_seq = 0; | |
456 | peventbuf = peventbuf + 2; /* move to event content, 8 bytes aligment */ | |
457 | if (peventbuf) { | |
458 | event_callback = wlanevents[evt_code].event_callback; | |
459 | if (event_callback) | |
460 | event_callback(padapter, (u8 *)peventbuf); | |
461 | } | |
462 | pevt_priv->evt_done_cnt++; | |
463 | _abort_event_: | |
464 | return; | |
465 | } |