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Revert "Merge branch 'ath6kl-next' of master.kernel.org:/pub/scm/linux/kernel/git...
[linux-2.6/next.git] / drivers / net / wireless / rtlwifi / rtl8192cu / rf.c
blob17a8e9628512e448598ca403b2f4445dcee62d1e
1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2010 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 "reg.h"
32 #include "def.h"
33 #include "phy.h"
34 #include "rf.h"
35 #include "dm.h"
36
37 static bool _rtl92c_phy_rf6052_config_parafile(struct ieee80211_hw *hw);
38
39 void rtl92cu_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth)
40 {
41 struct rtl_priv *rtlpriv = rtl_priv(hw);
42 struct rtl_phy *rtlphy = &(rtlpriv->phy);
43
44 switch (bandwidth) {
45 case HT_CHANNEL_WIDTH_20:
46 rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
47 0xfffff3ff) | 0x0400);
48 rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
49 rtlphy->rfreg_chnlval[0]);
50 break;
51 case HT_CHANNEL_WIDTH_20_40:
52 rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
53 0xfffff3ff));
54 rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
55 rtlphy->rfreg_chnlval[0]);
56 break;
57 default:
58 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
59 ("unknown bandwidth: %#X\n", bandwidth));
60 break;
61 }
62 }
63
64 void rtl92cu_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
65 u8 *ppowerlevel)
66 {
67 struct rtl_priv *rtlpriv = rtl_priv(hw);
68 struct rtl_phy *rtlphy = &(rtlpriv->phy);
69 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
70 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
71 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
72 u32 tx_agc[2] = { 0, 0 }, tmpval = 0;
73 bool turbo_scanoff = false;
74 u8 idx1, idx2;
75 u8 *ptr;
76
77 if (rtlhal->interface == INTF_PCI) {
78 if (rtlefuse->eeprom_regulatory != 0)
79 turbo_scanoff = true;
80 } else {
81 if ((rtlefuse->eeprom_regulatory != 0) ||
82 (rtlefuse->external_pa))
83 turbo_scanoff = true;
84 }
85 if (mac->act_scanning) {
86 tx_agc[RF90_PATH_A] = 0x3f3f3f3f;
87 tx_agc[RF90_PATH_B] = 0x3f3f3f3f;
88 if (turbo_scanoff) {
89 for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
90 tx_agc[idx1] = ppowerlevel[idx1] |
91 (ppowerlevel[idx1] << 8) |
92 (ppowerlevel[idx1] << 16) |
93 (ppowerlevel[idx1] << 24);
94 if (rtlhal->interface == INTF_USB) {
95 if (tx_agc[idx1] > 0x20 &&
96 rtlefuse->external_pa)
97 tx_agc[idx1] = 0x20;
98 }
99 }
100 }
101 } else {
102 if (rtlpriv->dm.dynamic_txhighpower_lvl ==
103 TXHIGHPWRLEVEL_LEVEL1) {
104 tx_agc[RF90_PATH_A] = 0x10101010;
105 tx_agc[RF90_PATH_B] = 0x10101010;
106 } else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
107 TXHIGHPWRLEVEL_LEVEL2) {
108 tx_agc[RF90_PATH_A] = 0x00000000;
109 tx_agc[RF90_PATH_B] = 0x00000000;
110 } else{
111 for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
112 tx_agc[idx1] = ppowerlevel[idx1] |
113 (ppowerlevel[idx1] << 8) |
114 (ppowerlevel[idx1] << 16) |
115 (ppowerlevel[idx1] << 24);
116 }
117 if (rtlefuse->eeprom_regulatory == 0) {
118 tmpval = (rtlphy->mcs_txpwrlevel_origoffset
119 [0][6]) +
120 (rtlphy->mcs_txpwrlevel_origoffset
121 [0][7] << 8);
122 tx_agc[RF90_PATH_A] += tmpval;
123 tmpval = (rtlphy->mcs_txpwrlevel_origoffset
124 [0][14]) +
125 (rtlphy->mcs_txpwrlevel_origoffset
126 [0][15] << 24);
127 tx_agc[RF90_PATH_B] += tmpval;
128 }
129 }
130 }
131 for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
132 ptr = (u8 *) (&(tx_agc[idx1]));
133 for (idx2 = 0; idx2 < 4; idx2++) {
134 if (*ptr > RF6052_MAX_TX_PWR)
135 *ptr = RF6052_MAX_TX_PWR;
136 ptr++;
137 }
138 }
139 tmpval = tx_agc[RF90_PATH_A] & 0xff;
140 rtl_set_bbreg(hw, RTXAGC_A_CCK1_MCS32, MASKBYTE1, tmpval);
141
142 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
143 ("CCK PWR 1M (rf-A) = 0x%x (reg 0x%x)\n", tmpval,
144 RTXAGC_A_CCK1_MCS32));
145
146 tmpval = tx_agc[RF90_PATH_A] >> 8;
147 if (mac->mode == WIRELESS_MODE_B)
148 tmpval = tmpval & 0xff00ffff;
149 rtl_set_bbreg(hw, RTXAGC_B_CCK11_A_CCK2_11, 0xffffff00, tmpval);
150 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
151 ("CCK PWR 2~11M (rf-A) = 0x%x (reg 0x%x)\n", tmpval,
152 RTXAGC_B_CCK11_A_CCK2_11));
153 tmpval = tx_agc[RF90_PATH_B] >> 24;
154 rtl_set_bbreg(hw, RTXAGC_B_CCK11_A_CCK2_11, MASKBYTE0, tmpval);
155 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
156 ("CCK PWR 11M (rf-B) = 0x%x (reg 0x%x)\n", tmpval,
157 RTXAGC_B_CCK11_A_CCK2_11));
158 tmpval = tx_agc[RF90_PATH_B] & 0x00ffffff;
159 rtl_set_bbreg(hw, RTXAGC_B_CCK1_55_MCS32, 0xffffff00, tmpval);
160 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
161 ("CCK PWR 1~5.5M (rf-B) = 0x%x (reg 0x%x)\n", tmpval,
162 RTXAGC_B_CCK1_55_MCS32));
163 }
164
165 static void rtl92c_phy_get_power_base(struct ieee80211_hw *hw,
166 u8 *ppowerlevel, u8 channel,
167 u32 *ofdmbase, u32 *mcsbase)
168 {
169 struct rtl_priv *rtlpriv = rtl_priv(hw);
170 struct rtl_phy *rtlphy = &(rtlpriv->phy);
171 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
172 u32 powerBase0, powerBase1;
173 u8 legacy_pwrdiff = 0, ht20_pwrdiff = 0;
174 u8 i, powerlevel[2];
175
176 for (i = 0; i < 2; i++) {
177 powerlevel[i] = ppowerlevel[i];
178 legacy_pwrdiff = rtlefuse->txpwr_legacyhtdiff[i][channel - 1];
179 powerBase0 = powerlevel[i] + legacy_pwrdiff;
180 powerBase0 = (powerBase0 << 24) | (powerBase0 << 16) |
181 (powerBase0 << 8) | powerBase0;
182 *(ofdmbase + i) = powerBase0;
183 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
184 (" [OFDM power base index rf(%c) = 0x%x]\n",
185 ((i == 0) ? 'A' : 'B'), *(ofdmbase + i)));
186 }
187 for (i = 0; i < 2; i++) {
188 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20) {
189 ht20_pwrdiff = rtlefuse->txpwr_ht20diff[i][channel - 1];
190 powerlevel[i] += ht20_pwrdiff;
191 }
192 powerBase1 = powerlevel[i];
193 powerBase1 = (powerBase1 << 24) |
194 (powerBase1 << 16) | (powerBase1 << 8) | powerBase1;
195 *(mcsbase + i) = powerBase1;
196 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
197 (" [MCS power base index rf(%c) = 0x%x]\n",
198 ((i == 0) ? 'A' : 'B'), *(mcsbase + i)));
199 }
200 }
201
202 static void _rtl92c_get_txpower_writeval_by_regulatory(struct ieee80211_hw *hw,
203 u8 channel, u8 index,
204 u32 *powerBase0,
205 u32 *powerBase1,
206 u32 *p_outwriteval)
207 {
208 struct rtl_priv *rtlpriv = rtl_priv(hw);
209 struct rtl_phy *rtlphy = &(rtlpriv->phy);
210 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
211 u8 i, chnlgroup = 0, pwr_diff_limit[4];
212 u32 writeVal, customer_limit, rf;
213
214 for (rf = 0; rf < 2; rf++) {
215 switch (rtlefuse->eeprom_regulatory) {
216 case 0:
217 chnlgroup = 0;
218 writeVal = rtlphy->mcs_txpwrlevel_origoffset
219 [chnlgroup][index + (rf ? 8 : 0)]
220 + ((index < 2) ? powerBase0[rf] : powerBase1[rf]);
221 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
222 ("RTK better performance,writeVal(%c) = 0x%x\n",
223 ((rf == 0) ? 'A' : 'B'), writeVal));
224 break;
225 case 1:
226 if (rtlphy->pwrgroup_cnt == 1)
227 chnlgroup = 0;
228 if (rtlphy->pwrgroup_cnt >= 3) {
229 if (channel <= 3)
230 chnlgroup = 0;
231 else if (channel >= 4 && channel <= 9)
232 chnlgroup = 1;
233 else if (channel > 9)
234 chnlgroup = 2;
235 if (rtlphy->current_chan_bw ==
236 HT_CHANNEL_WIDTH_20)
237 chnlgroup++;
238 else
239 chnlgroup += 4;
240 }
241 writeVal = rtlphy->mcs_txpwrlevel_origoffset
242 [chnlgroup][index +
243 (rf ? 8 : 0)] +
244 ((index < 2) ? powerBase0[rf] :
245 powerBase1[rf]);
246 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
247 ("Realtek regulatory, 20MHz, "
248 "writeVal(%c) = 0x%x\n",
249 ((rf == 0) ? 'A' : 'B'), writeVal));
250 break;
251 case 2:
252 writeVal = ((index < 2) ? powerBase0[rf] :
253 powerBase1[rf]);
254 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
255 ("Better regulatory,writeVal(%c) = 0x%x\n",
256 ((rf == 0) ? 'A' : 'B'), writeVal));
257 break;
258 case 3:
259 chnlgroup = 0;
260 if (rtlphy->current_chan_bw ==
261 HT_CHANNEL_WIDTH_20_40) {
262 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
263 ("customer's limit, 40MHzrf(%c) = "
264 "0x%x\n", ((rf == 0) ? 'A' : 'B'),
265 rtlefuse->pwrgroup_ht40[rf]
266 [channel - 1]));
267 } else {
268 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
269 ("customer's limit, 20MHz rf(%c) = "
270 "0x%x\n", ((rf == 0) ? 'A' : 'B'),
271 rtlefuse->pwrgroup_ht20[rf]
272 [channel - 1]));
273 }
274 for (i = 0; i < 4; i++) {
275 pwr_diff_limit[i] =
276 (u8) ((rtlphy->mcs_txpwrlevel_origoffset
277 [chnlgroup][index + (rf ? 8 : 0)]
278 & (0x7f << (i * 8))) >> (i * 8));
279 if (rtlphy->current_chan_bw ==
280 HT_CHANNEL_WIDTH_20_40) {
281 if (pwr_diff_limit[i] >
282 rtlefuse->pwrgroup_ht40[rf]
283 [channel - 1])
284 pwr_diff_limit[i] = rtlefuse->
285 pwrgroup_ht40[rf]
286 [channel - 1];
287 } else {
288 if (pwr_diff_limit[i] >
289 rtlefuse->pwrgroup_ht20[rf]
290 [channel - 1])
291 pwr_diff_limit[i] =
292 rtlefuse->pwrgroup_ht20[rf]
293 [channel - 1];
294 }
295 }
296 customer_limit = (pwr_diff_limit[3] << 24) |
297 (pwr_diff_limit[2] << 16) |
298 (pwr_diff_limit[1] << 8) | (pwr_diff_limit[0]);
299 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
300 ("Customer's limit rf(%c) = 0x%x\n",
301 ((rf == 0) ? 'A' : 'B'), customer_limit));
302 writeVal = customer_limit + ((index < 2) ?
303 powerBase0[rf] : powerBase1[rf]);
304 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
305 ("Customer, writeVal rf(%c)= 0x%x\n",
306 ((rf == 0) ? 'A' : 'B'), writeVal));
307 break;
308 default:
309 chnlgroup = 0;
310 writeVal = rtlphy->mcs_txpwrlevel_origoffset[chnlgroup]
311 [index + (rf ? 8 : 0)] + ((index < 2) ?
312 powerBase0[rf] : powerBase1[rf]);
313 RTPRINT(rtlpriv, FPHY, PHY_TXPWR, ("RTK better "
314 "performance, writeValrf(%c) = 0x%x\n",
315 ((rf == 0) ? 'A' : 'B'), writeVal));
316 break;
317 }
318 if (rtlpriv->dm.dynamic_txhighpower_lvl ==
319 TXHIGHPWRLEVEL_LEVEL1)
320 writeVal = 0x14141414;
321 else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
322 TXHIGHPWRLEVEL_LEVEL2)
323 writeVal = 0x00000000;
324 if (rtlpriv->dm.dynamic_txhighpower_lvl == TXHIGHPWRLEVEL_BT1)
325 writeVal = writeVal - 0x06060606;
326 else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
327 TXHIGHPWRLEVEL_BT2)
328 writeVal = writeVal;
329 *(p_outwriteval + rf) = writeVal;
330 }
331 }
332
333 static void _rtl92c_write_ofdm_power_reg(struct ieee80211_hw *hw,
334 u8 index, u32 *pValue)
335 {
336 struct rtl_priv *rtlpriv = rtl_priv(hw);
337 struct rtl_phy *rtlphy = &(rtlpriv->phy);
338 u16 regoffset_a[6] = {
339 RTXAGC_A_RATE18_06, RTXAGC_A_RATE54_24,
340 RTXAGC_A_MCS03_MCS00, RTXAGC_A_MCS07_MCS04,
341 RTXAGC_A_MCS11_MCS08, RTXAGC_A_MCS15_MCS12
342 };
343 u16 regoffset_b[6] = {
344 RTXAGC_B_RATE18_06, RTXAGC_B_RATE54_24,
345 RTXAGC_B_MCS03_MCS00, RTXAGC_B_MCS07_MCS04,
346 RTXAGC_B_MCS11_MCS08, RTXAGC_B_MCS15_MCS12
347 };
348 u8 i, rf, pwr_val[4];
349 u32 writeVal;
350 u16 regoffset;
351
352 for (rf = 0; rf < 2; rf++) {
353 writeVal = pValue[rf];
354 for (i = 0; i < 4; i++) {
355 pwr_val[i] = (u8)((writeVal & (0x7f << (i * 8))) >>
356 (i * 8));
357 if (pwr_val[i] > RF6052_MAX_TX_PWR)
358 pwr_val[i] = RF6052_MAX_TX_PWR;
359 }
360 writeVal = (pwr_val[3] << 24) | (pwr_val[2] << 16) |
361 (pwr_val[1] << 8) | pwr_val[0];
362 if (rf == 0)
363 regoffset = regoffset_a[index];
364 else
365 regoffset = regoffset_b[index];
366 rtl_set_bbreg(hw, regoffset, MASKDWORD, writeVal);
367 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
368 ("Set 0x%x = %08x\n", regoffset, writeVal));
369 if (((get_rf_type(rtlphy) == RF_2T2R) &&
370 (regoffset == RTXAGC_A_MCS15_MCS12 ||
371 regoffset == RTXAGC_B_MCS15_MCS12)) ||
372 ((get_rf_type(rtlphy) != RF_2T2R) &&
373 (regoffset == RTXAGC_A_MCS07_MCS04 ||
374 regoffset == RTXAGC_B_MCS07_MCS04))) {
375 writeVal = pwr_val[3];
376 if (regoffset == RTXAGC_A_MCS15_MCS12 ||
377 regoffset == RTXAGC_A_MCS07_MCS04)
378 regoffset = 0xc90;
379 if (regoffset == RTXAGC_B_MCS15_MCS12 ||
380 regoffset == RTXAGC_B_MCS07_MCS04)
381 regoffset = 0xc98;
382 for (i = 0; i < 3; i++) {
383 writeVal = (writeVal > 6) ? (writeVal - 6) : 0;
384 rtl_write_byte(rtlpriv, (u32)(regoffset + i),
385 (u8)writeVal);
386 }
387 }
388 }
389 }
390
391 void rtl92cu_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
392 u8 *ppowerlevel, u8 channel)
393 {
394 u32 writeVal[2], powerBase0[2], powerBase1[2];
395 u8 index = 0;
396
397 rtl92c_phy_get_power_base(hw, ppowerlevel,
398 channel, &powerBase0[0], &powerBase1[0]);
399 for (index = 0; index < 6; index++) {
400 _rtl92c_get_txpower_writeval_by_regulatory(hw,
401 channel, index,
402 &powerBase0[0],
403 &powerBase1[0],
404 &writeVal[0]);
405 _rtl92c_write_ofdm_power_reg(hw, index, &writeVal[0]);
406 }
407 }
408
409 bool rtl92cu_phy_rf6052_config(struct ieee80211_hw *hw)
410 {
411 struct rtl_priv *rtlpriv = rtl_priv(hw);
412 struct rtl_phy *rtlphy = &(rtlpriv->phy);
413 bool rtstatus = true;
414 u8 b_reg_hwparafile = 1;
415
416 if (rtlphy->rf_type == RF_1T1R)
417 rtlphy->num_total_rfpath = 1;
418 else
419 rtlphy->num_total_rfpath = 2;
420 if (b_reg_hwparafile == 1)
421 rtstatus = _rtl92c_phy_rf6052_config_parafile(hw);
422 return rtstatus;
423 }
424
425 static bool _rtl92c_phy_rf6052_config_parafile(struct ieee80211_hw *hw)
426 {
427 struct rtl_priv *rtlpriv = rtl_priv(hw);
428 struct rtl_phy *rtlphy = &(rtlpriv->phy);
429 u32 u4_regvalue = 0;
430 u8 rfpath;
431 bool rtstatus = true;
432 struct bb_reg_def *pphyreg;
433
434 for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) {
435 pphyreg = &rtlphy->phyreg_def[rfpath];
436 switch (rfpath) {
437 case RF90_PATH_A:
438 case RF90_PATH_C:
439 u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
440 BRFSI_RFENV);
441 break;
442 case RF90_PATH_B:
443 case RF90_PATH_D:
444 u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
445 BRFSI_RFENV << 16);
446 break;
447 }
448 rtl_set_bbreg(hw, pphyreg->rfintfe, BRFSI_RFENV << 16, 0x1);
449 udelay(1);
450 rtl_set_bbreg(hw, pphyreg->rfintfo, BRFSI_RFENV, 0x1);
451 udelay(1);
452 rtl_set_bbreg(hw, pphyreg->rfhssi_para2,
453 B3WIREADDREAALENGTH, 0x0);
454 udelay(1);
455 rtl_set_bbreg(hw, pphyreg->rfhssi_para2, B3WIREDATALENGTH, 0x0);
456 udelay(1);
457 switch (rfpath) {
458 case RF90_PATH_A:
459 rtstatus = rtl92cu_phy_config_rf_with_headerfile(hw,
460 (enum radio_path) rfpath);
461 break;
462 case RF90_PATH_B:
463 rtstatus = rtl92cu_phy_config_rf_with_headerfile(hw,
464 (enum radio_path) rfpath);
465 break;
466 case RF90_PATH_C:
467 break;
468 case RF90_PATH_D:
469 break;
470 }
471 switch (rfpath) {
472 case RF90_PATH_A:
473 case RF90_PATH_C:
474 rtl_set_bbreg(hw, pphyreg->rfintfs,
475 BRFSI_RFENV, u4_regvalue);
476 break;
477 case RF90_PATH_B:
478 case RF90_PATH_D:
479 rtl_set_bbreg(hw, pphyreg->rfintfs,
480 BRFSI_RFENV << 16, u4_regvalue);
481 break;
482 }
483 if (rtstatus != true) {
484 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
485 ("Radio[%d] Fail!!", rfpath));
486 goto phy_rf_cfg_fail;
487 }
488 }
489 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("<---\n"));
490 return rtstatus;
491 phy_rf_cfg_fail:
492 return rtstatus;
493 }
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