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  * The full GNU General Public License is included in this distribution in the
15  * file called LICENSE.
16  *
17  * Contact Information:
18  * wlanfae <wlanfae@realtek.com>
19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20  * Hsinchu 300, Taiwan.
21  *
22  * Larry Finger <Larry.Finger@lwfinger.net>
23  *
24  *****************************************************************************/
25 
26 #include "../wifi.h"
27 #include "../core.h"
28 #include "../pci.h"
29 #include "../base.h"
30 #include "reg.h"
31 #include "def.h"
32 #include "phy.h"
33 #include "dm.h"
34 #include "hw.h"
35 #include "sw.h"
36 #include "trx.h"
37 #include "led.h"
38 
39 #include <linux/module.h>
40 
41 static void rtl92d_init_aspm_vars(struct ieee80211_hw *hw)
42 {
43 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
44 
45 	/*close ASPM for AMD defaultly */
46 	rtlpci->const_amdpci_aspm = 0;
47 
48 	/*
49 	 * ASPM PS mode.
50 	 * 0 - Disable ASPM,
51 	 * 1 - Enable ASPM without Clock Req,
52 	 * 2 - Enable ASPM with Clock Req,
53 	 * 3 - Alwyas Enable ASPM with Clock Req,
54 	 * 4 - Always Enable ASPM without Clock Req.
55 	 * set defult to RTL8192CE:3 RTL8192E:2
56 	 * */
57 	rtlpci->const_pci_aspm = 3;
58 
59 	/*Setting for PCI-E device */
60 	rtlpci->const_devicepci_aspm_setting = 0x03;
61 
62 	/*Setting for PCI-E bridge */
63 	rtlpci->const_hostpci_aspm_setting = 0x02;
64 
65 	/*
66 	 * In Hw/Sw Radio Off situation.
67 	 * 0 - Default,
68 	 * 1 - From ASPM setting without low Mac Pwr,
69 	 * 2 - From ASPM setting with low Mac Pwr,
70 	 * 3 - Bus D3
71 	 * set default to RTL8192CE:0 RTL8192SE:2
72 	 */
73 	rtlpci->const_hwsw_rfoff_d3 = 0;
74 
75 	/*
76 	 * This setting works for those device with
77 	 * backdoor ASPM setting such as EPHY setting.
78 	 * 0 - Not support ASPM,
79 	 * 1 - Support ASPM,
80 	 * 2 - According to chipset.
81 	 */
82 	rtlpci->const_support_pciaspm = 1;
83 }
84 
85 static int rtl92d_init_sw_vars(struct ieee80211_hw *hw)
86 {
87 	int err;
88 	u8 tid;
89 	struct rtl_priv *rtlpriv = rtl_priv(hw);
90 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
91 	char *fw_name = "rtlwifi/rtl8192defw.bin";
92 
93 	rtlpriv->dm.dm_initialgain_enable = true;
94 	rtlpriv->dm.dm_flag = 0;
95 	rtlpriv->dm.disable_framebursting = false;
96 	rtlpriv->dm.thermalvalue = 0;
97 	rtlpriv->dm.useramask = true;
98 
99 	/* dual mac */
100 	if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G)
101 		rtlpriv->phy.current_channel = 36;
102 	else
103 		rtlpriv->phy.current_channel = 1;
104 
105 	if (rtlpriv->rtlhal.macphymode != SINGLEMAC_SINGLEPHY) {
106 		rtlpriv->rtlhal.disable_amsdu_8k = true;
107 		/* No long RX - reduce fragmentation */
108 		rtlpci->rxbuffersize = 4096;
109 	}
110 
111 	rtlpci->transmit_config = CFENDFORM | BIT(12) | BIT(13);
112 
113 	rtlpci->receive_config = (
114 			RCR_APPFCS
115 			| RCR_AMF
116 			| RCR_ADF
117 			| RCR_APP_MIC
118 			| RCR_APP_ICV
119 			| RCR_AICV
120 			| RCR_ACRC32
121 			| RCR_AB
122 			| RCR_AM
123 			| RCR_APM
124 			| RCR_APP_PHYST_RXFF
125 			| RCR_HTC_LOC_CTRL
126 	);
127 
128 	rtlpci->irq_mask[0] = (u32) (
129 			IMR_ROK
130 			| IMR_VODOK
131 			| IMR_VIDOK
132 			| IMR_BEDOK
133 			| IMR_BKDOK
134 			| IMR_MGNTDOK
135 			| IMR_HIGHDOK
136 			| IMR_BDOK
137 			| IMR_RDU
138 			| IMR_RXFOVW
139 	);
140 
141 	rtlpci->irq_mask[1] = (u32) (IMR_CPWM | IMR_C2HCMD);
142 
143 	/* for LPS & IPS */
144 	rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps;
145 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
146 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
147 	if (!rtlpriv->psc.inactiveps)
148 		pr_info("Power Save off (module option)\n");
149 	if (!rtlpriv->psc.fwctrl_lps)
150 		pr_info("FW Power Save off (module option)\n");
151 	rtlpriv->psc.reg_fwctrl_lps = 3;
152 	rtlpriv->psc.reg_max_lps_awakeintvl = 5;
153 	/* for ASPM, you can close aspm through
154 	 * set const_support_pciaspm = 0 */
155 	rtl92d_init_aspm_vars(hw);
156 
157 	if (rtlpriv->psc.reg_fwctrl_lps == 1)
158 		rtlpriv->psc.fwctrl_psmode = FW_PS_MIN_MODE;
159 	else if (rtlpriv->psc.reg_fwctrl_lps == 2)
160 		rtlpriv->psc.fwctrl_psmode = FW_PS_MAX_MODE;
161 	else if (rtlpriv->psc.reg_fwctrl_lps == 3)
162 		rtlpriv->psc.fwctrl_psmode = FW_PS_DTIM_MODE;
163 
164 	/* for early mode */
165 	rtlpriv->rtlhal.earlymode_enable = false;
166 	for (tid = 0; tid < 8; tid++)
167 		skb_queue_head_init(&rtlpriv->mac80211.skb_waitq[tid]);
168 
169 	/* for firmware buf */
170 	rtlpriv->rtlhal.pfirmware = vzalloc(0x8000);
171 	if (!rtlpriv->rtlhal.pfirmware) {
172 		pr_err("Can't alloc buffer for fw\n");
173 		return 1;
174 	}
175 
176 	rtlpriv->max_fw_size = 0x8000;
177 	pr_info("Driver for Realtek RTL8192DE WLAN interface\n");
178 	pr_info("Loading firmware file %s\n", fw_name);
179 
180 	/* request fw */
181 	err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
182 				      rtlpriv->io.dev, GFP_KERNEL, hw,
183 				      rtl_fw_cb);
184 	if (err) {
185 		pr_err("Failed to request firmware!\n");
186 		vfree(rtlpriv->rtlhal.pfirmware);
187 		rtlpriv->rtlhal.pfirmware = NULL;
188 		return 1;
189 	}
190 
191 	return 0;
192 }
193 
194 static void rtl92d_deinit_sw_vars(struct ieee80211_hw *hw)
195 {
196 	struct rtl_priv *rtlpriv = rtl_priv(hw);
197 	u8 tid;
198 
199 	if (rtlpriv->rtlhal.pfirmware) {
200 		vfree(rtlpriv->rtlhal.pfirmware);
201 		rtlpriv->rtlhal.pfirmware = NULL;
202 	}
203 	for (tid = 0; tid < 8; tid++)
204 		skb_queue_purge(&rtlpriv->mac80211.skb_waitq[tid]);
205 }
206 
207 static struct rtl_hal_ops rtl8192de_hal_ops = {
208 	.init_sw_vars = rtl92d_init_sw_vars,
209 	.deinit_sw_vars = rtl92d_deinit_sw_vars,
210 	.read_eeprom_info = rtl92de_read_eeprom_info,
211 	.interrupt_recognized = rtl92de_interrupt_recognized,
212 	.hw_init = rtl92de_hw_init,
213 	.hw_disable = rtl92de_card_disable,
214 	.hw_suspend = rtl92de_suspend,
215 	.hw_resume = rtl92de_resume,
216 	.enable_interrupt = rtl92de_enable_interrupt,
217 	.disable_interrupt = rtl92de_disable_interrupt,
218 	.set_network_type = rtl92de_set_network_type,
219 	.set_chk_bssid = rtl92de_set_check_bssid,
220 	.set_qos = rtl92de_set_qos,
221 	.set_bcn_reg = rtl92de_set_beacon_related_registers,
222 	.set_bcn_intv = rtl92de_set_beacon_interval,
223 	.update_interrupt_mask = rtl92de_update_interrupt_mask,
224 	.get_hw_reg = rtl92de_get_hw_reg,
225 	.set_hw_reg = rtl92de_set_hw_reg,
226 	.update_rate_tbl = rtl92de_update_hal_rate_tbl,
227 	.fill_tx_desc = rtl92de_tx_fill_desc,
228 	.fill_tx_cmddesc = rtl92de_tx_fill_cmddesc,
229 	.query_rx_desc = rtl92de_rx_query_desc,
230 	.set_channel_access = rtl92de_update_channel_access_setting,
231 	.radio_onoff_checking = rtl92de_gpio_radio_on_off_checking,
232 	.set_bw_mode = rtl92d_phy_set_bw_mode,
233 	.switch_channel = rtl92d_phy_sw_chnl,
234 	.dm_watchdog = rtl92d_dm_watchdog,
235 	.scan_operation_backup = rtl_phy_scan_operation_backup,
236 	.set_rf_power_state = rtl92d_phy_set_rf_power_state,
237 	.led_control = rtl92de_led_control,
238 	.set_desc = rtl92de_set_desc,
239 	.get_desc = rtl92de_get_desc,
240 	.tx_polling = rtl92de_tx_polling,
241 	.enable_hw_sec = rtl92de_enable_hw_security_config,
242 	.set_key = rtl92de_set_key,
243 	.init_sw_leds = rtl92de_init_sw_leds,
244 	.get_bbreg = rtl92d_phy_query_bb_reg,
245 	.set_bbreg = rtl92d_phy_set_bb_reg,
246 	.get_rfreg = rtl92d_phy_query_rf_reg,
247 	.set_rfreg = rtl92d_phy_set_rf_reg,
248 	.linked_set_reg = rtl92d_linked_set_reg,
249 	.get_btc_status = rtl_btc_status_false,
250 };
251 
252 static struct rtl_mod_params rtl92de_mod_params = {
253 	.sw_crypto = false,
254 	.inactiveps = true,
255 	.swctrl_lps = true,
256 	.fwctrl_lps = false,
257 	.debug_level = 0,
258 	.debug_mask = 0,
259 };
260 
261 static const struct rtl_hal_cfg rtl92de_hal_cfg = {
262 	.bar_id = 2,
263 	.write_readback = true,
264 	.name = "rtl8192de",
265 	.ops = &rtl8192de_hal_ops,
266 	.mod_params = &rtl92de_mod_params,
267 
268 	.maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,
269 	.maps[SYS_FUNC_EN] = REG_SYS_FUNC_EN,
270 	.maps[SYS_CLK] = REG_SYS_CLKR,
271 	.maps[MAC_RCR_AM] = RCR_AM,
272 	.maps[MAC_RCR_AB] = RCR_AB,
273 	.maps[MAC_RCR_ACRC32] = RCR_ACRC32,
274 	.maps[MAC_RCR_ACF] = RCR_ACF,
275 	.maps[MAC_RCR_AAP] = RCR_AAP,
276 
277 	.maps[EFUSE_TEST] = REG_EFUSE_TEST,
278 	.maps[EFUSE_CTRL] = REG_EFUSE_CTRL,
279 	.maps[EFUSE_CLK] = 0,	/* just for 92se */
280 	.maps[EFUSE_CLK_CTRL] = REG_EFUSE_CTRL,
281 	.maps[EFUSE_PWC_EV12V] = PWC_EV12V,
282 	.maps[EFUSE_FEN_ELDR] = FEN_ELDR,
283 	.maps[EFUSE_LOADER_CLK_EN] = LOADER_CLK_EN,
284 	.maps[EFUSE_ANA8M] = 0,	/* just for 92se */
285 	.maps[EFUSE_HWSET_MAX_SIZE] = HWSET_MAX_SIZE,
286 	.maps[EFUSE_MAX_SECTION_MAP] = EFUSE_MAX_SECTION,
287 	.maps[EFUSE_REAL_CONTENT_SIZE] = EFUSE_REAL_CONTENT_LEN,
288 
289 	.maps[RWCAM] = REG_CAMCMD,
290 	.maps[WCAMI] = REG_CAMWRITE,
291 	.maps[RCAMO] = REG_CAMREAD,
292 	.maps[CAMDBG] = REG_CAMDBG,
293 	.maps[SECR] = REG_SECCFG,
294 	.maps[SEC_CAM_NONE] = CAM_NONE,
295 	.maps[SEC_CAM_WEP40] = CAM_WEP40,
296 	.maps[SEC_CAM_TKIP] = CAM_TKIP,
297 	.maps[SEC_CAM_AES] = CAM_AES,
298 	.maps[SEC_CAM_WEP104] = CAM_WEP104,
299 
300 	.maps[RTL_IMR_BCNDMAINT6] = IMR_BCNDMAINT6,
301 	.maps[RTL_IMR_BCNDMAINT5] = IMR_BCNDMAINT5,
302 	.maps[RTL_IMR_BCNDMAINT4] = IMR_BCNDMAINT4,
303 	.maps[RTL_IMR_BCNDMAINT3] = IMR_BCNDMAINT3,
304 	.maps[RTL_IMR_BCNDMAINT2] = IMR_BCNDMAINT2,
305 	.maps[RTL_IMR_BCNDMAINT1] = IMR_BCNDMAINT1,
306 	.maps[RTL_IMR_BCNDOK8] = IMR_BCNDOK8,
307 	.maps[RTL_IMR_BCNDOK7] = IMR_BCNDOK7,
308 	.maps[RTL_IMR_BCNDOK6] = IMR_BCNDOK6,
309 	.maps[RTL_IMR_BCNDOK5] = IMR_BCNDOK5,
310 	.maps[RTL_IMR_BCNDOK4] = IMR_BCNDOK4,
311 	.maps[RTL_IMR_BCNDOK3] = IMR_BCNDOK3,
312 	.maps[RTL_IMR_BCNDOK2] = IMR_BCNDOK2,
313 	.maps[RTL_IMR_BCNDOK1] = IMR_BCNDOK1,
314 	.maps[RTL_IMR_TIMEOUT2] = IMR_TIMEOUT2,
315 	.maps[RTL_IMR_TIMEOUT1] = IMR_TIMEOUT1,
316 
317 	.maps[RTL_IMR_TXFOVW] = IMR_TXFOVW,
318 	.maps[RTL_IMR_PSTIMEOUT] = IMR_PSTIMEOUT,
319 	.maps[RTL_IMR_BCNINT] = IMR_BCNINT,
320 	.maps[RTL_IMR_RXFOVW] = IMR_RXFOVW,
321 	.maps[RTL_IMR_RDU] = IMR_RDU,
322 	.maps[RTL_IMR_ATIMEND] = IMR_ATIMEND,
323 	.maps[RTL_IMR_BDOK] = IMR_BDOK,
324 	.maps[RTL_IMR_MGNTDOK] = IMR_MGNTDOK,
325 	.maps[RTL_IMR_TBDER] = IMR_TBDER,
326 	.maps[RTL_IMR_HIGHDOK] = IMR_HIGHDOK,
327 	.maps[RTL_IMR_TBDOK] = IMR_TBDOK,
328 	.maps[RTL_IMR_BKDOK] = IMR_BKDOK,
329 	.maps[RTL_IMR_BEDOK] = IMR_BEDOK,
330 	.maps[RTL_IMR_VIDOK] = IMR_VIDOK,
331 	.maps[RTL_IMR_VODOK] = IMR_VODOK,
332 	.maps[RTL_IMR_ROK] = IMR_ROK,
333 	.maps[RTL_IBSS_INT_MASKS] = (IMR_BCNINT | IMR_TBDOK | IMR_TBDER),
334 
335 	.maps[RTL_RC_CCK_RATE1M] = DESC_RATE1M,
336 	.maps[RTL_RC_CCK_RATE2M] = DESC_RATE2M,
337 	.maps[RTL_RC_CCK_RATE5_5M] = DESC_RATE5_5M,
338 	.maps[RTL_RC_CCK_RATE11M] = DESC_RATE11M,
339 	.maps[RTL_RC_OFDM_RATE6M] = DESC_RATE6M,
340 	.maps[RTL_RC_OFDM_RATE9M] = DESC_RATE9M,
341 	.maps[RTL_RC_OFDM_RATE12M] = DESC_RATE12M,
342 	.maps[RTL_RC_OFDM_RATE18M] = DESC_RATE18M,
343 	.maps[RTL_RC_OFDM_RATE24M] = DESC_RATE24M,
344 	.maps[RTL_RC_OFDM_RATE36M] = DESC_RATE36M,
345 	.maps[RTL_RC_OFDM_RATE48M] = DESC_RATE48M,
346 	.maps[RTL_RC_OFDM_RATE54M] = DESC_RATE54M,
347 
348 	.maps[RTL_RC_HT_RATEMCS7] = DESC_RATEMCS7,
349 	.maps[RTL_RC_HT_RATEMCS15] = DESC_RATEMCS15,
350 };
351 
352 static const struct pci_device_id rtl92de_pci_ids[] = {
353 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8193, rtl92de_hal_cfg)},
354 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x002B, rtl92de_hal_cfg)},
355 	{},
356 };
357 
358 MODULE_DEVICE_TABLE(pci, rtl92de_pci_ids);
359 
360 MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
361 MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
362 MODULE_AUTHOR("Larry Finger	<Larry.Finger@lwfinger.net>");
363 MODULE_LICENSE("GPL");
364 MODULE_DESCRIPTION("Realtek 8192DE 802.11n Dual Mac PCI wireless");
365 MODULE_FIRMWARE("rtlwifi/rtl8192defw.bin");
366 
367 module_param_named(swenc, rtl92de_mod_params.sw_crypto, bool, 0444);
368 module_param_named(debug_level, rtl92de_mod_params.debug_level, int, 0644);
369 module_param_named(ips, rtl92de_mod_params.inactiveps, bool, 0444);
370 module_param_named(swlps, rtl92de_mod_params.swctrl_lps, bool, 0444);
371 module_param_named(fwlps, rtl92de_mod_params.fwctrl_lps, bool, 0444);
372 module_param_named(debug_mask, rtl92de_mod_params.debug_mask, ullong, 0644);
373 MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
374 MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n");
375 MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 1)\n");
376 MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 0)\n");
377 MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)");
378 MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)");
379 
380 static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
381 
382 static struct pci_driver rtl92de_driver = {
383 	.name = KBUILD_MODNAME,
384 	.id_table = rtl92de_pci_ids,
385 	.probe = rtl_pci_probe,
386 	.remove = rtl_pci_disconnect,
387 	.driver.pm = &rtlwifi_pm_ops,
388 };
389 
390 /* add global spin lock to solve the problem that
391  * Dul mac register operation on the same time */
392 spinlock_t globalmutex_power;
393 spinlock_t globalmutex_for_fwdownload;
394 spinlock_t globalmutex_for_power_and_efuse;
395 
396 static int __init rtl92de_module_init(void)
397 {
398 	int ret = 0;
399 
400 	spin_lock_init(&globalmutex_power);
401 	spin_lock_init(&globalmutex_for_fwdownload);
402 	spin_lock_init(&globalmutex_for_power_and_efuse);
403 
404 	ret = pci_register_driver(&rtl92de_driver);
405 	if (ret)
406 		WARN_ONCE(true, "rtl8192de: No device found\n");
407 	return ret;
408 }
409 
410 static void __exit rtl92de_module_exit(void)
411 {
412 	pci_unregister_driver(&rtl92de_driver);
413 }
414 
415 module_init(rtl92de_module_init);
416 module_exit(rtl92de_module_exit);
417