1 /******************************************************************************
2  *
3  * Copyright(c) 2009-2012  Realtek Corporation.
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  * The full GNU General Public License is included in this distribution in the
19  * file called LICENSE.
20  *
21  * Contact Information:
22  * wlanfae <wlanfae@realtek.com>
23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24  * Hsinchu 300, Taiwan.
25  *
26  * Larry Finger <Larry.Finger@lwfinger.net>
27  *
28  *****************************************************************************/
29 
30 #include "../wifi.h"
31 #include "../core.h"
32 #include "../pci.h"
33 #include "../base.h"
34 #include "../pci.h"
35 #include "reg.h"
36 #include "def.h"
37 #include "phy.h"
38 #include "dm.h"
39 #include "fw.h"
40 #include "hw.h"
41 #include "sw.h"
42 #include "trx.h"
43 #include "led.h"
44 
45 #include <linux/module.h>
46 
rtl92s_init_aspm_vars(struct ieee80211_hw * hw)47 static void rtl92s_init_aspm_vars(struct ieee80211_hw *hw)
48 {
49 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
50 
51 	/*close ASPM for AMD defaultly */
52 	rtlpci->const_amdpci_aspm = 0;
53 
54 	/*
55 	 * ASPM PS mode.
56 	 * 0 - Disable ASPM,
57 	 * 1 - Enable ASPM without Clock Req,
58 	 * 2 - Enable ASPM with Clock Req,
59 	 * 3 - Alwyas Enable ASPM with Clock Req,
60 	 * 4 - Always Enable ASPM without Clock Req.
61 	 * set defult to RTL8192CE:3 RTL8192E:2
62 	 * */
63 	rtlpci->const_pci_aspm = 2;
64 
65 	/*Setting for PCI-E device */
66 	rtlpci->const_devicepci_aspm_setting = 0x03;
67 
68 	/*Setting for PCI-E bridge */
69 	rtlpci->const_hostpci_aspm_setting = 0x02;
70 
71 	/*
72 	 * In Hw/Sw Radio Off situation.
73 	 * 0 - Default,
74 	 * 1 - From ASPM setting without low Mac Pwr,
75 	 * 2 - From ASPM setting with low Mac Pwr,
76 	 * 3 - Bus D3
77 	 * set default to RTL8192CE:0 RTL8192SE:2
78 	 */
79 	rtlpci->const_hwsw_rfoff_d3 = 2;
80 
81 	/*
82 	 * This setting works for those device with
83 	 * backdoor ASPM setting such as EPHY setting.
84 	 * 0 - Not support ASPM,
85 	 * 1 - Support ASPM,
86 	 * 2 - According to chipset.
87 	 */
88 	rtlpci->const_support_pciaspm = 2;
89 }
90 
rtl92se_fw_cb(const struct firmware * firmware,void * context)91 static void rtl92se_fw_cb(const struct firmware *firmware, void *context)
92 {
93 	struct ieee80211_hw *hw = context;
94 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
95 	struct rtl_priv *rtlpriv = rtl_priv(hw);
96 	struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
97 	struct rt_firmware *pfirmware = NULL;
98 	int err;
99 
100 	RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
101 			 "Firmware callback routine entered!\n");
102 	complete(&rtlpriv->firmware_loading_complete);
103 	if (!firmware) {
104 		pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
105 		rtlpriv->max_fw_size = 0;
106 		return;
107 	}
108 	if (firmware->size > rtlpriv->max_fw_size) {
109 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
110 			 "Firmware is too big!\n");
111 		rtlpriv->max_fw_size = 0;
112 		release_firmware(firmware);
113 		return;
114 	}
115 	pfirmware = (struct rt_firmware *)rtlpriv->rtlhal.pfirmware;
116 	memcpy(pfirmware->sz_fw_tmpbuffer, firmware->data, firmware->size);
117 	pfirmware->sz_fw_tmpbufferlen = firmware->size;
118 	release_firmware(firmware);
119 
120 	err = ieee80211_register_hw(hw);
121 	if (err) {
122 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
123 			 "Can't register mac80211 hw\n");
124 		return;
125 	} else {
126 		rtlpriv->mac80211.mac80211_registered = 1;
127 	}
128 	rtlpci->irq_alloc = 1;
129 	set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
130 
131 	/*init rfkill */
132 	rtl_init_rfkill(hw);
133 }
134 
rtl92s_init_sw_vars(struct ieee80211_hw * hw)135 static int rtl92s_init_sw_vars(struct ieee80211_hw *hw)
136 {
137 	struct rtl_priv *rtlpriv = rtl_priv(hw);
138 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
139 	int err = 0;
140 	u16 earlyrxthreshold = 7;
141 
142 	rtlpriv->dm.dm_initialgain_enable = true;
143 	rtlpriv->dm.dm_flag = 0;
144 	rtlpriv->dm.disable_framebursting = false;
145 	rtlpriv->dm.thermalvalue = 0;
146 	rtlpriv->dm.useramask = true;
147 
148 	/* compatible 5G band 91se just 2.4G band & smsp */
149 	rtlpriv->rtlhal.current_bandtype = BAND_ON_2_4G;
150 	rtlpriv->rtlhal.bandset = BAND_ON_2_4G;
151 	rtlpriv->rtlhal.macphymode = SINGLEMAC_SINGLEPHY;
152 
153 	rtlpci->transmit_config = 0;
154 
155 	rtlpci->receive_config =
156 			RCR_APPFCS |
157 			RCR_APWRMGT |
158 			/*RCR_ADD3 |*/
159 			RCR_AMF	|
160 			RCR_ADF |
161 			RCR_APP_MIC |
162 			RCR_APP_ICV |
163 			RCR_AICV |
164 			/* Accept ICV error, CRC32 Error */
165 			RCR_ACRC32 |
166 			RCR_AB |
167 			/* Accept Broadcast, Multicast */
168 			RCR_AM	|
169 			/* Accept Physical match */
170 			RCR_APM |
171 			/* Accept Destination Address packets */
172 			/*RCR_AAP |*/
173 			RCR_APP_PHYST_STAFF |
174 			/* Accept PHY status */
175 			RCR_APP_PHYST_RXFF |
176 			(earlyrxthreshold << RCR_FIFO_OFFSET);
177 
178 	rtlpci->irq_mask[0] = (u32)
179 			(IMR_ROK |
180 			IMR_VODOK |
181 			IMR_VIDOK |
182 			IMR_BEDOK |
183 			IMR_BKDOK |
184 			IMR_HCCADOK |
185 			IMR_MGNTDOK |
186 			IMR_COMDOK |
187 			IMR_HIGHDOK |
188 			IMR_BDOK |
189 			IMR_RXCMDOK |
190 			/*IMR_TIMEOUT0 |*/
191 			IMR_RDU |
192 			IMR_RXFOVW	|
193 			IMR_BCNINT
194 			/*| IMR_TXFOVW*/
195 			/*| IMR_TBDOK |
196 			IMR_TBDER*/);
197 
198 	rtlpci->irq_mask[1] = (u32) 0;
199 
200 	rtlpci->shortretry_limit = 0x30;
201 	rtlpci->longretry_limit = 0x30;
202 
203 	rtlpci->first_init = true;
204 
205 	/* for debug level */
206 	rtlpriv->dbg.global_debuglevel = rtlpriv->cfg->mod_params->debug;
207 	/* for LPS & IPS */
208 	rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps;
209 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
210 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
211 	if (!rtlpriv->psc.inactiveps)
212 		pr_info("Power Save off (module option)\n");
213 	if (!rtlpriv->psc.fwctrl_lps)
214 		pr_info("FW Power Save off (module option)\n");
215 	rtlpriv->psc.reg_fwctrl_lps = 3;
216 	rtlpriv->psc.reg_max_lps_awakeintvl = 5;
217 	/* for ASPM, you can close aspm through
218 	 * set const_support_pciaspm = 0 */
219 	rtl92s_init_aspm_vars(hw);
220 
221 	if (rtlpriv->psc.reg_fwctrl_lps == 1)
222 		rtlpriv->psc.fwctrl_psmode = FW_PS_MIN_MODE;
223 	else if (rtlpriv->psc.reg_fwctrl_lps == 2)
224 		rtlpriv->psc.fwctrl_psmode = FW_PS_MAX_MODE;
225 	else if (rtlpriv->psc.reg_fwctrl_lps == 3)
226 		rtlpriv->psc.fwctrl_psmode = FW_PS_DTIM_MODE;
227 
228 	/* for firmware buf */
229 	rtlpriv->rtlhal.pfirmware = vzalloc(sizeof(struct rt_firmware));
230 	if (!rtlpriv->rtlhal.pfirmware)
231 		return 1;
232 
233 	rtlpriv->max_fw_size = RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE;
234 
235 	pr_info("Driver for Realtek RTL8192SE/RTL8191SE\n"
236 		"Loading firmware %s\n", rtlpriv->cfg->fw_name);
237 	/* request fw */
238 	err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
239 				      rtlpriv->io.dev, GFP_KERNEL, hw,
240 				      rtl92se_fw_cb);
241 	if (err) {
242 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
243 			 "Failed to request firmware!\n");
244 		return 1;
245 	}
246 
247 	return err;
248 }
249 
rtl92s_deinit_sw_vars(struct ieee80211_hw * hw)250 static void rtl92s_deinit_sw_vars(struct ieee80211_hw *hw)
251 {
252 	struct rtl_priv *rtlpriv = rtl_priv(hw);
253 
254 	if (rtlpriv->rtlhal.pfirmware) {
255 		vfree(rtlpriv->rtlhal.pfirmware);
256 		rtlpriv->rtlhal.pfirmware = NULL;
257 	}
258 }
259 
260 static struct rtl_hal_ops rtl8192se_hal_ops = {
261 	.init_sw_vars = rtl92s_init_sw_vars,
262 	.deinit_sw_vars = rtl92s_deinit_sw_vars,
263 	.read_eeprom_info = rtl92se_read_eeprom_info,
264 	.interrupt_recognized = rtl92se_interrupt_recognized,
265 	.hw_init = rtl92se_hw_init,
266 	.hw_disable = rtl92se_card_disable,
267 	.hw_suspend = rtl92se_suspend,
268 	.hw_resume = rtl92se_resume,
269 	.enable_interrupt = rtl92se_enable_interrupt,
270 	.disable_interrupt = rtl92se_disable_interrupt,
271 	.set_network_type = rtl92se_set_network_type,
272 	.set_chk_bssid = rtl92se_set_check_bssid,
273 	.set_qos = rtl92se_set_qos,
274 	.set_bcn_reg = rtl92se_set_beacon_related_registers,
275 	.set_bcn_intv = rtl92se_set_beacon_interval,
276 	.update_interrupt_mask = rtl92se_update_interrupt_mask,
277 	.get_hw_reg = rtl92se_get_hw_reg,
278 	.set_hw_reg = rtl92se_set_hw_reg,
279 	.update_rate_tbl = rtl92se_update_hal_rate_tbl,
280 	.fill_tx_desc = rtl92se_tx_fill_desc,
281 	.fill_tx_cmddesc = rtl92se_tx_fill_cmddesc,
282 	.query_rx_desc = rtl92se_rx_query_desc,
283 	.set_channel_access = rtl92se_update_channel_access_setting,
284 	.radio_onoff_checking = rtl92se_gpio_radio_on_off_checking,
285 	.set_bw_mode = rtl92s_phy_set_bw_mode,
286 	.switch_channel = rtl92s_phy_sw_chnl,
287 	.dm_watchdog = rtl92s_dm_watchdog,
288 	.scan_operation_backup = rtl92s_phy_scan_operation_backup,
289 	.set_rf_power_state = rtl92s_phy_set_rf_power_state,
290 	.led_control = rtl92se_led_control,
291 	.set_desc = rtl92se_set_desc,
292 	.get_desc = rtl92se_get_desc,
293 	.tx_polling = rtl92se_tx_polling,
294 	.enable_hw_sec = rtl92se_enable_hw_security_config,
295 	.set_key = rtl92se_set_key,
296 	.init_sw_leds = rtl92se_init_sw_leds,
297 	.get_bbreg = rtl92s_phy_query_bb_reg,
298 	.set_bbreg = rtl92s_phy_set_bb_reg,
299 	.get_rfreg = rtl92s_phy_query_rf_reg,
300 	.set_rfreg = rtl92s_phy_set_rf_reg,
301 };
302 
303 static struct rtl_mod_params rtl92se_mod_params = {
304 	.sw_crypto = false,
305 	.inactiveps = true,
306 	.swctrl_lps = true,
307 	.fwctrl_lps = false,
308 	.debug = DBG_EMERG,
309 };
310 
311 /* Because memory R/W bursting will cause system hang/crash
312  * for 92se, so we don't read back after every write action */
313 static struct rtl_hal_cfg rtl92se_hal_cfg = {
314 	.bar_id = 1,
315 	.write_readback = false,
316 	.name = "rtl92s_pci",
317 	.fw_name = "rtlwifi/rtl8192sefw.bin",
318 	.ops = &rtl8192se_hal_ops,
319 	.mod_params = &rtl92se_mod_params,
320 
321 	.maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,
322 	.maps[SYS_FUNC_EN] = REG_SYS_FUNC_EN,
323 	.maps[SYS_CLK] = SYS_CLKR,
324 	.maps[MAC_RCR_AM] = RCR_AM,
325 	.maps[MAC_RCR_AB] = RCR_AB,
326 	.maps[MAC_RCR_ACRC32] = RCR_ACRC32,
327 	.maps[MAC_RCR_ACF] = RCR_ACF,
328 	.maps[MAC_RCR_AAP] = RCR_AAP,
329 
330 	.maps[EFUSE_TEST] = REG_EFUSE_TEST,
331 	.maps[EFUSE_CTRL] = REG_EFUSE_CTRL,
332 	.maps[EFUSE_CLK] = REG_EFUSE_CLK,
333 	.maps[EFUSE_CLK_CTRL] = REG_EFUSE_CTRL,
334 	.maps[EFUSE_PWC_EV12V] = 0, /* nouse for 8192se */
335 	.maps[EFUSE_FEN_ELDR] = 0, /* nouse for 8192se */
336 	.maps[EFUSE_LOADER_CLK_EN] = 0,/* nouse for 8192se */
337 	.maps[EFUSE_ANA8M] = EFUSE_ANA8M,
338 	.maps[EFUSE_HWSET_MAX_SIZE] = HWSET_MAX_SIZE_92S,
339 	.maps[EFUSE_MAX_SECTION_MAP] = EFUSE_MAX_SECTION,
340 	.maps[EFUSE_REAL_CONTENT_SIZE] = EFUSE_REAL_CONTENT_LEN,
341 	.maps[EFUSE_OOB_PROTECT_BYTES_LEN] = EFUSE_OOB_PROTECT_BYTES,
342 
343 	.maps[RWCAM] = REG_RWCAM,
344 	.maps[WCAMI] = REG_WCAMI,
345 	.maps[RCAMO] = REG_RCAMO,
346 	.maps[CAMDBG] = REG_CAMDBG,
347 	.maps[SECR] = REG_SECR,
348 	.maps[SEC_CAM_NONE] = CAM_NONE,
349 	.maps[SEC_CAM_WEP40] = CAM_WEP40,
350 	.maps[SEC_CAM_TKIP] = CAM_TKIP,
351 	.maps[SEC_CAM_AES] = CAM_AES,
352 	.maps[SEC_CAM_WEP104] = CAM_WEP104,
353 
354 	.maps[RTL_IMR_BCNDMAINT6] = IMR_BCNDMAINT6,
355 	.maps[RTL_IMR_BCNDMAINT5] = IMR_BCNDMAINT5,
356 	.maps[RTL_IMR_BCNDMAINT4] = IMR_BCNDMAINT4,
357 	.maps[RTL_IMR_BCNDMAINT3] = IMR_BCNDMAINT3,
358 	.maps[RTL_IMR_BCNDMAINT2] = IMR_BCNDMAINT2,
359 	.maps[RTL_IMR_BCNDMAINT1] = IMR_BCNDMAINT1,
360 	.maps[RTL_IMR_BCNDOK8] = IMR_BCNDOK8,
361 	.maps[RTL_IMR_BCNDOK7] = IMR_BCNDOK7,
362 	.maps[RTL_IMR_BCNDOK6] = IMR_BCNDOK6,
363 	.maps[RTL_IMR_BCNDOK5] = IMR_BCNDOK5,
364 	.maps[RTL_IMR_BCNDOK4] = IMR_BCNDOK4,
365 	.maps[RTL_IMR_BCNDOK3] = IMR_BCNDOK3,
366 	.maps[RTL_IMR_BCNDOK2] = IMR_BCNDOK2,
367 	.maps[RTL_IMR_BCNDOK1] = IMR_BCNDOK1,
368 	.maps[RTL_IMR_TIMEOUT2] = IMR_TIMEOUT2,
369 	.maps[RTL_IMR_TIMEOUT1] = IMR_TIMEOUT1,
370 
371 	.maps[RTL_IMR_TXFOVW] = IMR_TXFOVW,
372 	.maps[RTL_IMR_PSTIMEOUT] = IMR_PSTIMEOUT,
373 	.maps[RTL_IMR_BcnInt] = IMR_BCNINT,
374 	.maps[RTL_IMR_RXFOVW] = IMR_RXFOVW,
375 	.maps[RTL_IMR_RDU] = IMR_RDU,
376 	.maps[RTL_IMR_ATIMEND] = IMR_ATIMEND,
377 	.maps[RTL_IMR_BDOK] = IMR_BDOK,
378 	.maps[RTL_IMR_MGNTDOK] = IMR_MGNTDOK,
379 	.maps[RTL_IMR_TBDER] = IMR_TBDER,
380 	.maps[RTL_IMR_HIGHDOK] = IMR_HIGHDOK,
381 	.maps[RTL_IMR_COMDOK] = IMR_COMDOK,
382 	.maps[RTL_IMR_TBDOK] = IMR_TBDOK,
383 	.maps[RTL_IMR_BKDOK] = IMR_BKDOK,
384 	.maps[RTL_IMR_BEDOK] = IMR_BEDOK,
385 	.maps[RTL_IMR_VIDOK] = IMR_VIDOK,
386 	.maps[RTL_IMR_VODOK] = IMR_VODOK,
387 	.maps[RTL_IMR_ROK] = IMR_ROK,
388 	.maps[RTL_IBSS_INT_MASKS] = (IMR_BCNINT | IMR_TBDOK | IMR_TBDER),
389 
390 	.maps[RTL_RC_CCK_RATE1M] = DESC92_RATE1M,
391 	.maps[RTL_RC_CCK_RATE2M] = DESC92_RATE2M,
392 	.maps[RTL_RC_CCK_RATE5_5M] = DESC92_RATE5_5M,
393 	.maps[RTL_RC_CCK_RATE11M] = DESC92_RATE11M,
394 	.maps[RTL_RC_OFDM_RATE6M] = DESC92_RATE6M,
395 	.maps[RTL_RC_OFDM_RATE9M] = DESC92_RATE9M,
396 	.maps[RTL_RC_OFDM_RATE12M] = DESC92_RATE12M,
397 	.maps[RTL_RC_OFDM_RATE18M] = DESC92_RATE18M,
398 	.maps[RTL_RC_OFDM_RATE24M] = DESC92_RATE24M,
399 	.maps[RTL_RC_OFDM_RATE36M] = DESC92_RATE36M,
400 	.maps[RTL_RC_OFDM_RATE48M] = DESC92_RATE48M,
401 	.maps[RTL_RC_OFDM_RATE54M] = DESC92_RATE54M,
402 
403 	.maps[RTL_RC_HT_RATEMCS7] = DESC92_RATEMCS7,
404 	.maps[RTL_RC_HT_RATEMCS15] = DESC92_RATEMCS15,
405 };
406 
407 static struct pci_device_id rtl92se_pci_ids[] __devinitdata = {
408 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8192, rtl92se_hal_cfg)},
409 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8171, rtl92se_hal_cfg)},
410 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8172, rtl92se_hal_cfg)},
411 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8173, rtl92se_hal_cfg)},
412 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8174, rtl92se_hal_cfg)},
413 	{},
414 };
415 
416 MODULE_DEVICE_TABLE(pci, rtl92se_pci_ids);
417 
418 MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
419 MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
420 MODULE_AUTHOR("Larry Finger	<Larry.Finger@lwfinger.net>");
421 MODULE_LICENSE("GPL");
422 MODULE_DESCRIPTION("Realtek 8192S/8191S 802.11n PCI wireless");
423 MODULE_FIRMWARE("rtlwifi/rtl8192sefw.bin");
424 
425 module_param_named(swenc, rtl92se_mod_params.sw_crypto, bool, 0444);
426 module_param_named(debug, rtl92se_mod_params.debug, int, 0444);
427 module_param_named(ips, rtl92se_mod_params.inactiveps, bool, 0444);
428 module_param_named(swlps, rtl92se_mod_params.swctrl_lps, bool, 0444);
429 module_param_named(fwlps, rtl92se_mod_params.fwctrl_lps, bool, 0444);
430 MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
431 MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n");
432 MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n");
433 MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n");
434 MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
435 
436 static const struct dev_pm_ops rtlwifi_pm_ops = {
437 	.suspend = rtl_pci_suspend,
438 	.resume = rtl_pci_resume,
439 	.freeze = rtl_pci_suspend,
440 	.thaw = rtl_pci_resume,
441 	.poweroff = rtl_pci_suspend,
442 	.restore = rtl_pci_resume,
443 };
444 
445 static struct pci_driver rtl92se_driver = {
446 	.name = KBUILD_MODNAME,
447 	.id_table = rtl92se_pci_ids,
448 	.probe = rtl_pci_probe,
449 	.remove = rtl_pci_disconnect,
450 	.driver.pm = &rtlwifi_pm_ops,
451 };
452 
rtl92se_module_init(void)453 static int __init rtl92se_module_init(void)
454 {
455 	int ret = 0;
456 
457 	ret = pci_register_driver(&rtl92se_driver);
458 	if (ret)
459 		RT_ASSERT(false, "No device found\n");
460 
461 	return ret;
462 }
463 
rtl92se_module_exit(void)464 static void __exit rtl92se_module_exit(void)
465 {
466 	pci_unregister_driver(&rtl92se_driver);
467 }
468 
469 module_init(rtl92se_module_init);
470 module_exit(rtl92se_module_exit);
471