1 /******************************************************************************
4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5 * Linux device driver for RTL8192SU
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.
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
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
20 * Modifications for inclusion into the Linux staging tree are
21 * Copyright(c) 2010 Larry Finger. All rights reserved.
23 * Contact information:
24 * WLAN FAE <wlanfae@realtek.com>.
25 * Larry Finger <Larry.Finger@lwfinger.net>
27 ******************************************************************************/
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/kthread.h>
34 #include "osdep_service.h"
35 #include "drv_types.h"
36 #include "xmit_osdep.h"
37 #include "recv_osdep.h"
38 #include "rtl871x_ioctl.h"
39 #include "usb_osintf.h"
41 MODULE_LICENSE("GPL");
42 MODULE_DESCRIPTION("rtl871x wireless lan driver");
43 MODULE_AUTHOR("Larry Finger");
45 static char ifname[IFNAMSIZ] = "wlan%d";
47 /* module param defaults */
48 static int chip_version = RTL8712_2ndCUT;
49 static int rfintfs = HWPI;
50 static int lbkmode = RTL8712_AIR_TRX;
51 static int hci = RTL8712_USB;
52 static int ampdu_enable = 1;/*for enable tx_ampdu*/
54 /* The video_mode variable is for vedio mode.*/
55 /* It may be specify when inserting module with video_mode=1 parameter.*/
56 static int video_mode = 1; /* enable video mode*/
58 /*Ndis802_11Infrastructure; infra, ad-hoc, auto*/
59 static int network_mode = Ndis802_11IBSS;
60 static int channel = 1;/*ad-hoc support requirement*/
61 static int wireless_mode = WIRELESS_11BG;
62 static int vrtl_carrier_sense = AUTO_VCS;
63 static int vcs_type = RTS_CTS;
64 static int frag_thresh = 2346;
65 static int preamble = PREAMBLE_LONG;/*long, short, auto*/
66 static int scan_mode = 1;/*active, passive*/
67 static int adhoc_tx_pwr = 1;
69 static int smart_ps = 1;
70 static int power_mgnt = PS_MODE_ACTIVE;
71 static int radio_enable = 1;
72 static int long_retry_lmt = 7;
73 static int short_retry_lmt = 7;
74 static int busy_thresh = 40;
75 static int ack_policy = NORMAL_ACK;
77 static int software_encrypt;
78 static int software_decrypt;
80 static int wmm_enable;/* default is set to disable the wmm.*/
81 static int uapsd_enable;
82 static int uapsd_max_sp = NO_LIMIT;
83 static int uapsd_acbk_en;
84 static int uapsd_acbe_en;
85 static int uapsd_acvi_en;
86 static int uapsd_acvo_en;
88 static int ht_enable = 1;
89 static int cbw40_enable = 1;
90 static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/
92 /* mac address to use instead of the one stored in Efuse */
96 module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
97 module_param(initmac, charp, 0644);
98 module_param(video_mode, int, 0644);
99 module_param(chip_version, int, 0644);
100 module_param(rfintfs, int, 0644);
101 module_param(lbkmode, int, 0644);
102 module_param(hci, int, 0644);
103 module_param(network_mode, int, 0644);
104 module_param(channel, int, 0644);
105 module_param(mp_mode, int, 0644);
106 module_param(wmm_enable, int, 0644);
107 module_param(vrtl_carrier_sense, int, 0644);
108 module_param(vcs_type, int, 0644);
109 module_param(busy_thresh, int, 0644);
110 module_param(ht_enable, int, 0644);
111 module_param(cbw40_enable, int, 0644);
112 module_param(ampdu_enable, int, 0644);
113 module_param(rf_config, int, 0644);
114 module_param(power_mgnt, int, 0644);
115 module_param(low_power, int, 0644);
117 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
118 MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE");
120 static uint loadparam(struct _adapter *padapter, struct net_device *pnetdev);
121 static int netdev_open(struct net_device *pnetdev);
122 static int netdev_close(struct net_device *pnetdev);
124 static uint loadparam(struct _adapter *padapter, struct net_device *pnetdev)
126 uint status = _SUCCESS;
127 struct registry_priv *registry_par = &padapter->registrypriv;
129 registry_par->chip_version = (u8)chip_version;
130 registry_par->rfintfs = (u8)rfintfs;
131 registry_par->lbkmode = (u8)lbkmode;
132 registry_par->hci = (u8)hci;
133 registry_par->network_mode = (u8)network_mode;
134 memcpy(registry_par->ssid.Ssid, "ANY", 3);
135 registry_par->ssid.SsidLength = 3;
136 registry_par->channel = (u8)channel;
137 registry_par->wireless_mode = (u8)wireless_mode;
138 registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense ;
139 registry_par->vcs_type = (u8)vcs_type;
140 registry_par->frag_thresh = (u16)frag_thresh;
141 registry_par->preamble = (u8)preamble;
142 registry_par->scan_mode = (u8)scan_mode;
143 registry_par->adhoc_tx_pwr = (u8)adhoc_tx_pwr;
144 registry_par->soft_ap = (u8)soft_ap;
145 registry_par->smart_ps = (u8)smart_ps;
146 registry_par->power_mgnt = (u8)power_mgnt;
147 registry_par->radio_enable = (u8)radio_enable;
148 registry_par->long_retry_lmt = (u8)long_retry_lmt;
149 registry_par->short_retry_lmt = (u8)short_retry_lmt;
150 registry_par->busy_thresh = (u16)busy_thresh;
151 registry_par->ack_policy = (u8)ack_policy;
152 registry_par->mp_mode = (u8)mp_mode;
153 registry_par->software_encrypt = (u8)software_encrypt;
154 registry_par->software_decrypt = (u8)software_decrypt;
156 registry_par->wmm_enable = (u8)wmm_enable;
157 registry_par->uapsd_enable = (u8)uapsd_enable;
158 registry_par->uapsd_max_sp = (u8)uapsd_max_sp;
159 registry_par->uapsd_acbk_en = (u8)uapsd_acbk_en;
160 registry_par->uapsd_acbe_en = (u8)uapsd_acbe_en;
161 registry_par->uapsd_acvi_en = (u8)uapsd_acvi_en;
162 registry_par->uapsd_acvo_en = (u8)uapsd_acvo_en;
163 registry_par->ht_enable = (u8)ht_enable;
164 registry_par->cbw40_enable = (u8)cbw40_enable;
165 registry_par->ampdu_enable = (u8)ampdu_enable;
166 registry_par->rf_config = (u8)rf_config;
167 registry_par->low_power = (u8)low_power;
168 r8712_initmac = initmac;
172 static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p)
174 struct _adapter *padapter = (struct _adapter *)_netdev_priv(pnetdev);
175 struct sockaddr *addr = p;
177 if (padapter->bup == false)
178 memcpy(pnetdev->dev_addr, addr->sa_data, ETH_ALEN);
182 static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev)
184 struct _adapter *padapter = (struct _adapter *) _netdev_priv(pnetdev);
185 struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
186 struct recv_priv *precvpriv = &(padapter->recvpriv);
188 padapter->stats.tx_packets = pxmitpriv->tx_pkts;
189 padapter->stats.rx_packets = precvpriv->rx_pkts;
190 padapter->stats.tx_dropped = pxmitpriv->tx_drop;
191 padapter->stats.rx_dropped = precvpriv->rx_drop;
192 padapter->stats.tx_bytes = pxmitpriv->tx_bytes;
193 padapter->stats.rx_bytes = precvpriv->rx_bytes;
194 return &padapter->stats;
197 static const struct net_device_ops rtl8712_netdev_ops = {
198 .ndo_open = netdev_open,
199 .ndo_stop = netdev_close,
200 .ndo_start_xmit = r8712_xmit_entry,
201 .ndo_set_mac_address = r871x_net_set_mac_address,
202 .ndo_get_stats = r871x_net_get_stats,
203 .ndo_do_ioctl = r871x_ioctl,
206 struct net_device *r8712_init_netdev(void)
208 struct _adapter *padapter;
209 struct net_device *pnetdev;
211 pnetdev = alloc_etherdev(sizeof(struct _adapter));
214 if (dev_alloc_name(pnetdev, ifname) < 0) {
215 strcpy(ifname, "wlan%d");
216 dev_alloc_name(pnetdev, ifname);
218 padapter = (struct _adapter *) _netdev_priv(pnetdev);
219 padapter->pnetdev = pnetdev;
220 printk(KERN_INFO "r8712u: register rtl8712_netdev_ops to"
222 pnetdev->netdev_ops = &rtl8712_netdev_ops;
223 pnetdev->watchdog_timeo = HZ; /* 1 second timeout */
224 pnetdev->wireless_handlers = (struct iw_handler_def *)
227 loadparam(padapter, pnetdev);
228 netif_carrier_off(pnetdev);
229 padapter->pid = 0; /* Initial the PID value used for HW PBC.*/
233 static u32 start_drv_threads(struct _adapter *padapter)
235 padapter->cmdThread = kthread_run(r8712_cmd_thread, padapter,
236 padapter->pnetdev->name);
237 if (IS_ERR(padapter->cmdThread) < 0)
242 void r8712_stop_drv_threads(struct _adapter *padapter)
244 /*Below is to termindate r8712_cmd_thread & event_thread...*/
245 up(&padapter->cmdpriv.cmd_queue_sema);
246 if (padapter->cmdThread)
247 _down_sema(&padapter->cmdpriv.terminate_cmdthread_sema);
248 padapter->cmdpriv.cmd_seq = 1;
251 static void start_drv_timers(struct _adapter *padapter)
253 _set_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
255 _set_timer(&padapter->mlmepriv.wdg_timer, 2000);
258 static void stop_drv_timers(struct _adapter *padapter)
260 _cancel_timer_ex(&padapter->mlmepriv.assoc_timer);
261 _cancel_timer_ex(&padapter->mlmepriv.sitesurveyctrl.
262 sitesurvey_ctrl_timer);
263 _cancel_timer_ex(&padapter->securitypriv.tkip_timer);
264 _cancel_timer_ex(&padapter->mlmepriv.scan_to_timer);
265 _cancel_timer_ex(&padapter->mlmepriv.dhcp_timer);
266 _cancel_timer_ex(&padapter->mlmepriv.wdg_timer);
269 static u8 init_default_value(struct _adapter *padapter)
272 struct registry_priv *pregistrypriv = &padapter->registrypriv;
273 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
274 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
275 struct security_priv *psecuritypriv = &padapter->securitypriv;
278 pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense;
279 pxmitpriv->vcs = pregistrypriv->vcs_type;
280 pxmitpriv->vcs_type = pregistrypriv->vcs_type;
281 pxmitpriv->rts_thresh = pregistrypriv->rts_thresh;
282 pxmitpriv->frag_len = pregistrypriv->frag_thresh;
286 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
288 phtpriv->ampdu_enable = false;/*set to disabled*/
289 for (i = 0; i < 16; i++)
290 phtpriv->baddbareq_issued[i] = false;
293 psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt;
294 psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt;
295 psecuritypriv->binstallGrpkey = _FAIL;
298 r8712_init_registrypriv_dev_network(padapter);
299 r8712_update_registrypriv_dev_network(padapter);
304 u8 r8712_init_drv_sw(struct _adapter *padapter)
306 if ((r8712_init_cmd_priv(&padapter->cmdpriv)) == _FAIL)
308 padapter->cmdpriv.padapter = padapter;
309 if ((r8712_init_evt_priv(&padapter->evtpriv)) == _FAIL)
311 if (r8712_init_mlme_priv(padapter) == _FAIL)
313 _r8712_init_xmit_priv(&padapter->xmitpriv, padapter);
314 _r8712_init_recv_priv(&padapter->recvpriv, padapter);
315 memset((unsigned char *)&padapter->securitypriv, 0,
316 sizeof(struct security_priv));
317 _init_timer(&(padapter->securitypriv.tkip_timer), padapter->pnetdev,
318 r8712_use_tkipkey_handler, padapter);
319 _r8712_init_sta_priv(&padapter->stapriv);
320 padapter->stapriv.padapter = padapter;
321 r8712_init_bcmc_stainfo(padapter);
322 r8712_init_pwrctrl_priv(padapter);
323 sema_init(&(padapter->pwrctrlpriv.pnp_pwr_mgnt_sema), 0);
324 mp871xinit(padapter);
325 if (init_default_value(padapter) != _SUCCESS)
327 r8712_InitSwLeds(padapter);
331 u8 r8712_free_drv_sw(struct _adapter *padapter)
333 struct net_device *pnetdev = (struct net_device *)padapter->pnetdev;
335 r8712_free_cmd_priv(&padapter->cmdpriv);
336 r8712_free_evt_priv(&padapter->evtpriv);
337 r8712_DeInitSwLeds(padapter);
338 r8712_free_mlme_priv(&padapter->mlmepriv);
339 r8712_free_io_queue(padapter);
340 _free_xmit_priv(&padapter->xmitpriv);
341 _r8712_free_sta_priv(&padapter->stapriv);
342 _r8712_free_recv_priv(&padapter->recvpriv);
343 mp871xdeinit(padapter);
345 os_free_netdev(pnetdev);
350 static void enable_video_mode(struct _adapter *padapter, int cbw40_value)
353 * 1 -> enable video mode to 96B AP
354 * 0 -> disable video mode to 96B AP
356 * 1 -> enable 40MHz mode
357 * 0 -> disable 40MHz mode
362 u32 intcmd = 0xf4000500; /* enable bit8, bit10*/
365 /* if the driver supports the 40M bandwidth,
366 * we can enable the bit 9.*/
369 r8712_fw_cmd(padapter, intcmd);
372 static int netdev_open(struct net_device *pnetdev)
374 struct _adapter *padapter = (struct _adapter *)_netdev_priv(pnetdev);
376 if (padapter->bup == false) {
377 padapter->bDriverStopped = false;
378 padapter->bSurpriseRemoved = false;
379 padapter->bup = true;
380 if (rtl871x_hal_init(padapter) != _SUCCESS)
381 goto netdev_open_error;
382 if (r8712_initmac == NULL)
383 /* Use the mac address stored in the Efuse */
384 memcpy(pnetdev->dev_addr,
385 padapter->eeprompriv.mac_addr, ETH_ALEN);
387 /* We have to inform f/w to use user-supplied MAC
391 r8712_setMacAddr_cmd(padapter, (u8 *)pnetdev->dev_addr);
393 * The "myid" function will get the wifi mac address
394 * from eeprompriv structure instead of netdev
395 * structure. So, we have to overwrite the mac_addr
396 * stored in the eeprompriv structure. In this case,
397 * the real mac address won't be used anymore. So that,
398 * the eeprompriv.mac_addr should store the mac which
401 memcpy(padapter->eeprompriv.mac_addr,
402 pnetdev->dev_addr, ETH_ALEN);
404 if (start_drv_threads(padapter) != _SUCCESS)
405 goto netdev_open_error;
406 if (padapter->dvobjpriv.inirp_init == NULL)
407 goto netdev_open_error;
409 padapter->dvobjpriv.inirp_init(padapter);
410 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
411 padapter->registrypriv.smart_ps);
413 if (!netif_queue_stopped(pnetdev))
414 netif_start_queue(pnetdev);
416 netif_wake_queue(pnetdev);
419 enable_video_mode(padapter, cbw40_enable);
420 /* start driver mlme relation timer */
421 start_drv_timers(padapter);
422 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
425 padapter->bup = false;
426 netif_carrier_off(pnetdev);
427 netif_stop_queue(pnetdev);
431 static int netdev_close(struct net_device *pnetdev)
433 struct _adapter *padapter = (struct _adapter *) _netdev_priv(pnetdev);
436 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF);
441 if (!netif_queue_stopped(pnetdev))
442 netif_stop_queue(pnetdev);
445 /*s2-1. issue disassoc_cmd to fw*/
446 r8712_disassoc_cmd(padapter);
447 /*s2-2. indicate disconnect to os*/
448 r8712_ind_disconnect(padapter);
450 r8712_free_assoc_resources(padapter);
452 r8712_free_network_queue(padapter);
453 /*Stop driver mlme relation timer*/
454 stop_drv_timers(padapter);
458 #include "mlme_osdep.h"