phy_g.c 82 KB

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  1. /*
  2. Broadcom B43 wireless driver
  3. IEEE 802.11g PHY driver
  4. Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
  5. Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
  6. Copyright (c) 2005-2008 Michael Buesch <mb@bu3sch.de>
  7. Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
  8. Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
  9. This program is free software; you can redistribute it and/or modify
  10. it under the terms of the GNU General Public License as published by
  11. the Free Software Foundation; either version 2 of the License, or
  12. (at your option) any later version.
  13. This program is distributed in the hope that it will be useful,
  14. but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. GNU General Public License for more details.
  17. You should have received a copy of the GNU General Public License
  18. along with this program; see the file COPYING. If not, write to
  19. the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  20. Boston, MA 02110-1301, USA.
  21. */
  22. #include "b43.h"
  23. #include "phy_g.h"
  24. #include "phy_common.h"
  25. #include "lo.h"
  26. #include "main.h"
  27. #include <linux/bitrev.h>
  28. static const s8 b43_tssi2dbm_g_table[] = {
  29. 77, 77, 77, 76,
  30. 76, 76, 75, 75,
  31. 74, 74, 73, 73,
  32. 73, 72, 72, 71,
  33. 71, 70, 70, 69,
  34. 68, 68, 67, 67,
  35. 66, 65, 65, 64,
  36. 63, 63, 62, 61,
  37. 60, 59, 58, 57,
  38. 56, 55, 54, 53,
  39. 52, 50, 49, 47,
  40. 45, 43, 40, 37,
  41. 33, 28, 22, 14,
  42. 5, -7, -20, -20,
  43. -20, -20, -20, -20,
  44. -20, -20, -20, -20,
  45. };
  46. static const u8 b43_radio_channel_codes_bg[] = {
  47. 12, 17, 22, 27,
  48. 32, 37, 42, 47,
  49. 52, 57, 62, 67,
  50. 72, 84,
  51. };
  52. static void b43_calc_nrssi_threshold(struct b43_wldev *dev);
  53. #define bitrev4(tmp) (bitrev8(tmp) >> 4)
  54. /* Get the freq, as it has to be written to the device. */
  55. static inline u16 channel2freq_bg(u8 channel)
  56. {
  57. B43_WARN_ON(!(channel >= 1 && channel <= 14));
  58. return b43_radio_channel_codes_bg[channel - 1];
  59. }
  60. static void generate_rfatt_list(struct b43_wldev *dev,
  61. struct b43_rfatt_list *list)
  62. {
  63. struct b43_phy *phy = &dev->phy;
  64. /* APHY.rev < 5 || GPHY.rev < 6 */
  65. static const struct b43_rfatt rfatt_0[] = {
  66. {.att = 3,.with_padmix = 0,},
  67. {.att = 1,.with_padmix = 0,},
  68. {.att = 5,.with_padmix = 0,},
  69. {.att = 7,.with_padmix = 0,},
  70. {.att = 9,.with_padmix = 0,},
  71. {.att = 2,.with_padmix = 0,},
  72. {.att = 0,.with_padmix = 0,},
  73. {.att = 4,.with_padmix = 0,},
  74. {.att = 6,.with_padmix = 0,},
  75. {.att = 8,.with_padmix = 0,},
  76. {.att = 1,.with_padmix = 1,},
  77. {.att = 2,.with_padmix = 1,},
  78. {.att = 3,.with_padmix = 1,},
  79. {.att = 4,.with_padmix = 1,},
  80. };
  81. /* Radio.rev == 8 && Radio.version == 0x2050 */
  82. static const struct b43_rfatt rfatt_1[] = {
  83. {.att = 2,.with_padmix = 1,},
  84. {.att = 4,.with_padmix = 1,},
  85. {.att = 6,.with_padmix = 1,},
  86. {.att = 8,.with_padmix = 1,},
  87. {.att = 10,.with_padmix = 1,},
  88. {.att = 12,.with_padmix = 1,},
  89. {.att = 14,.with_padmix = 1,},
  90. };
  91. /* Otherwise */
  92. static const struct b43_rfatt rfatt_2[] = {
  93. {.att = 0,.with_padmix = 1,},
  94. {.att = 2,.with_padmix = 1,},
  95. {.att = 4,.with_padmix = 1,},
  96. {.att = 6,.with_padmix = 1,},
  97. {.att = 8,.with_padmix = 1,},
  98. {.att = 9,.with_padmix = 1,},
  99. {.att = 9,.with_padmix = 1,},
  100. };
  101. if (!b43_has_hardware_pctl(dev)) {
  102. /* Software pctl */
  103. list->list = rfatt_0;
  104. list->len = ARRAY_SIZE(rfatt_0);
  105. list->min_val = 0;
  106. list->max_val = 9;
  107. return;
  108. }
  109. if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
  110. /* Hardware pctl */
  111. list->list = rfatt_1;
  112. list->len = ARRAY_SIZE(rfatt_1);
  113. list->min_val = 0;
  114. list->max_val = 14;
  115. return;
  116. }
  117. /* Hardware pctl */
  118. list->list = rfatt_2;
  119. list->len = ARRAY_SIZE(rfatt_2);
  120. list->min_val = 0;
  121. list->max_val = 9;
  122. }
  123. static void generate_bbatt_list(struct b43_wldev *dev,
  124. struct b43_bbatt_list *list)
  125. {
  126. static const struct b43_bbatt bbatt_0[] = {
  127. {.att = 0,},
  128. {.att = 1,},
  129. {.att = 2,},
  130. {.att = 3,},
  131. {.att = 4,},
  132. {.att = 5,},
  133. {.att = 6,},
  134. {.att = 7,},
  135. {.att = 8,},
  136. };
  137. list->list = bbatt_0;
  138. list->len = ARRAY_SIZE(bbatt_0);
  139. list->min_val = 0;
  140. list->max_val = 8;
  141. }
  142. static void b43_shm_clear_tssi(struct b43_wldev *dev)
  143. {
  144. b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F);
  145. b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F);
  146. b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F);
  147. b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F);
  148. }
  149. /* Synthetic PU workaround */
  150. static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel)
  151. {
  152. struct b43_phy *phy = &dev->phy;
  153. might_sleep();
  154. if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) {
  155. /* We do not need the workaround. */
  156. return;
  157. }
  158. if (channel <= 10) {
  159. b43_write16(dev, B43_MMIO_CHANNEL,
  160. channel2freq_bg(channel + 4));
  161. } else {
  162. b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1));
  163. }
  164. msleep(1);
  165. b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
  166. }
  167. /* Set the baseband attenuation value on chip. */
  168. void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
  169. u16 baseband_attenuation)
  170. {
  171. struct b43_phy *phy = &dev->phy;
  172. if (phy->analog == 0) {
  173. b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0)
  174. & 0xFFF0) |
  175. baseband_attenuation);
  176. } else if (phy->analog > 1) {
  177. b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFFC3, (baseband_attenuation << 2));
  178. } else {
  179. b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFF87, (baseband_attenuation << 3));
  180. }
  181. }
  182. /* Adjust the transmission power output (G-PHY) */
  183. static void b43_set_txpower_g(struct b43_wldev *dev,
  184. const struct b43_bbatt *bbatt,
  185. const struct b43_rfatt *rfatt, u8 tx_control)
  186. {
  187. struct b43_phy *phy = &dev->phy;
  188. struct b43_phy_g *gphy = phy->g;
  189. struct b43_txpower_lo_control *lo = gphy->lo_control;
  190. u16 bb, rf;
  191. u16 tx_bias, tx_magn;
  192. bb = bbatt->att;
  193. rf = rfatt->att;
  194. tx_bias = lo->tx_bias;
  195. tx_magn = lo->tx_magn;
  196. if (unlikely(tx_bias == 0xFF))
  197. tx_bias = 0;
  198. /* Save the values for later. Use memmove, because it's valid
  199. * to pass &gphy->rfatt as rfatt pointer argument. Same for bbatt. */
  200. gphy->tx_control = tx_control;
  201. memmove(&gphy->rfatt, rfatt, sizeof(*rfatt));
  202. gphy->rfatt.with_padmix = !!(tx_control & B43_TXCTL_TXMIX);
  203. memmove(&gphy->bbatt, bbatt, sizeof(*bbatt));
  204. if (b43_debug(dev, B43_DBG_XMITPOWER)) {
  205. b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), "
  206. "rfatt(%u), tx_control(0x%02X), "
  207. "tx_bias(0x%02X), tx_magn(0x%02X)\n",
  208. bb, rf, tx_control, tx_bias, tx_magn);
  209. }
  210. b43_gphy_set_baseband_attenuation(dev, bb);
  211. b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf);
  212. if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
  213. b43_radio_write16(dev, 0x43,
  214. (rf & 0x000F) | (tx_control & 0x0070));
  215. } else {
  216. b43_radio_maskset(dev, 0x43, 0xFFF0, (rf & 0x000F));
  217. b43_radio_maskset(dev, 0x52, ~0x0070, (tx_control & 0x0070));
  218. }
  219. if (has_tx_magnification(phy)) {
  220. b43_radio_write16(dev, 0x52, tx_magn | tx_bias);
  221. } else {
  222. b43_radio_maskset(dev, 0x52, 0xFFF0, (tx_bias & 0x000F));
  223. }
  224. b43_lo_g_adjust(dev);
  225. }
  226. /* GPHY_TSSI_Power_Lookup_Table_Init */
  227. static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev)
  228. {
  229. struct b43_phy_g *gphy = dev->phy.g;
  230. int i;
  231. u16 value;
  232. for (i = 0; i < 32; i++)
  233. b43_ofdmtab_write16(dev, 0x3C20, i, gphy->tssi2dbm[i]);
  234. for (i = 32; i < 64; i++)
  235. b43_ofdmtab_write16(dev, 0x3C00, i - 32, gphy->tssi2dbm[i]);
  236. for (i = 0; i < 64; i += 2) {
  237. value = (u16) gphy->tssi2dbm[i];
  238. value |= ((u16) gphy->tssi2dbm[i + 1]) << 8;
  239. b43_phy_write(dev, 0x380 + (i / 2), value);
  240. }
  241. }
  242. /* GPHY_Gain_Lookup_Table_Init */
  243. static void b43_gphy_gain_lt_init(struct b43_wldev *dev)
  244. {
  245. struct b43_phy *phy = &dev->phy;
  246. struct b43_phy_g *gphy = phy->g;
  247. struct b43_txpower_lo_control *lo = gphy->lo_control;
  248. u16 nr_written = 0;
  249. u16 tmp;
  250. u8 rf, bb;
  251. for (rf = 0; rf < lo->rfatt_list.len; rf++) {
  252. for (bb = 0; bb < lo->bbatt_list.len; bb++) {
  253. if (nr_written >= 0x40)
  254. return;
  255. tmp = lo->bbatt_list.list[bb].att;
  256. tmp <<= 8;
  257. if (phy->radio_rev == 8)
  258. tmp |= 0x50;
  259. else
  260. tmp |= 0x40;
  261. tmp |= lo->rfatt_list.list[rf].att;
  262. b43_phy_write(dev, 0x3C0 + nr_written, tmp);
  263. nr_written++;
  264. }
  265. }
  266. }
  267. static void b43_set_all_gains(struct b43_wldev *dev,
  268. s16 first, s16 second, s16 third)
  269. {
  270. struct b43_phy *phy = &dev->phy;
  271. u16 i;
  272. u16 start = 0x08, end = 0x18;
  273. u16 tmp;
  274. u16 table;
  275. if (phy->rev <= 1) {
  276. start = 0x10;
  277. end = 0x20;
  278. }
  279. table = B43_OFDMTAB_GAINX;
  280. if (phy->rev <= 1)
  281. table = B43_OFDMTAB_GAINX_R1;
  282. for (i = 0; i < 4; i++)
  283. b43_ofdmtab_write16(dev, table, i, first);
  284. for (i = start; i < end; i++)
  285. b43_ofdmtab_write16(dev, table, i, second);
  286. if (third != -1) {
  287. tmp = ((u16) third << 14) | ((u16) third << 6);
  288. b43_phy_maskset(dev, 0x04A0, 0xBFBF, tmp);
  289. b43_phy_maskset(dev, 0x04A1, 0xBFBF, tmp);
  290. b43_phy_maskset(dev, 0x04A2, 0xBFBF, tmp);
  291. }
  292. b43_dummy_transmission(dev, false, true);
  293. }
  294. static void b43_set_original_gains(struct b43_wldev *dev)
  295. {
  296. struct b43_phy *phy = &dev->phy;
  297. u16 i, tmp;
  298. u16 table;
  299. u16 start = 0x0008, end = 0x0018;
  300. if (phy->rev <= 1) {
  301. start = 0x0010;
  302. end = 0x0020;
  303. }
  304. table = B43_OFDMTAB_GAINX;
  305. if (phy->rev <= 1)
  306. table = B43_OFDMTAB_GAINX_R1;
  307. for (i = 0; i < 4; i++) {
  308. tmp = (i & 0xFFFC);
  309. tmp |= (i & 0x0001) << 1;
  310. tmp |= (i & 0x0002) >> 1;
  311. b43_ofdmtab_write16(dev, table, i, tmp);
  312. }
  313. for (i = start; i < end; i++)
  314. b43_ofdmtab_write16(dev, table, i, i - start);
  315. b43_phy_maskset(dev, 0x04A0, 0xBFBF, 0x4040);
  316. b43_phy_maskset(dev, 0x04A1, 0xBFBF, 0x4040);
  317. b43_phy_maskset(dev, 0x04A2, 0xBFBF, 0x4000);
  318. b43_dummy_transmission(dev, false, true);
  319. }
  320. /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
  321. static void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val)
  322. {
  323. b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
  324. b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val);
  325. }
  326. /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
  327. static s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset)
  328. {
  329. u16 val;
  330. b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
  331. val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA);
  332. return (s16) val;
  333. }
  334. /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
  335. static void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val)
  336. {
  337. u16 i;
  338. s16 tmp;
  339. for (i = 0; i < 64; i++) {
  340. tmp = b43_nrssi_hw_read(dev, i);
  341. tmp -= val;
  342. tmp = clamp_val(tmp, -32, 31);
  343. b43_nrssi_hw_write(dev, i, tmp);
  344. }
  345. }
  346. /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
  347. static void b43_nrssi_mem_update(struct b43_wldev *dev)
  348. {
  349. struct b43_phy_g *gphy = dev->phy.g;
  350. s16 i, delta;
  351. s32 tmp;
  352. delta = 0x1F - gphy->nrssi[0];
  353. for (i = 0; i < 64; i++) {
  354. tmp = (i - delta) * gphy->nrssislope;
  355. tmp /= 0x10000;
  356. tmp += 0x3A;
  357. tmp = clamp_val(tmp, 0, 0x3F);
  358. gphy->nrssi_lt[i] = tmp;
  359. }
  360. }
  361. static void b43_calc_nrssi_offset(struct b43_wldev *dev)
  362. {
  363. struct b43_phy *phy = &dev->phy;
  364. u16 backup[20] = { 0 };
  365. s16 v47F;
  366. u16 i;
  367. u16 saved = 0xFFFF;
  368. backup[0] = b43_phy_read(dev, 0x0001);
  369. backup[1] = b43_phy_read(dev, 0x0811);
  370. backup[2] = b43_phy_read(dev, 0x0812);
  371. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  372. backup[3] = b43_phy_read(dev, 0x0814);
  373. backup[4] = b43_phy_read(dev, 0x0815);
  374. }
  375. backup[5] = b43_phy_read(dev, 0x005A);
  376. backup[6] = b43_phy_read(dev, 0x0059);
  377. backup[7] = b43_phy_read(dev, 0x0058);
  378. backup[8] = b43_phy_read(dev, 0x000A);
  379. backup[9] = b43_phy_read(dev, 0x0003);
  380. backup[10] = b43_radio_read16(dev, 0x007A);
  381. backup[11] = b43_radio_read16(dev, 0x0043);
  382. b43_phy_mask(dev, 0x0429, 0x7FFF);
  383. b43_phy_maskset(dev, 0x0001, 0x3FFF, 0x4000);
  384. b43_phy_set(dev, 0x0811, 0x000C);
  385. b43_phy_maskset(dev, 0x0812, 0xFFF3, 0x0004);
  386. b43_phy_mask(dev, 0x0802, ~(0x1 | 0x2));
  387. if (phy->rev >= 6) {
  388. backup[12] = b43_phy_read(dev, 0x002E);
  389. backup[13] = b43_phy_read(dev, 0x002F);
  390. backup[14] = b43_phy_read(dev, 0x080F);
  391. backup[15] = b43_phy_read(dev, 0x0810);
  392. backup[16] = b43_phy_read(dev, 0x0801);
  393. backup[17] = b43_phy_read(dev, 0x0060);
  394. backup[18] = b43_phy_read(dev, 0x0014);
  395. backup[19] = b43_phy_read(dev, 0x0478);
  396. b43_phy_write(dev, 0x002E, 0);
  397. b43_phy_write(dev, 0x002F, 0);
  398. b43_phy_write(dev, 0x080F, 0);
  399. b43_phy_write(dev, 0x0810, 0);
  400. b43_phy_set(dev, 0x0478, 0x0100);
  401. b43_phy_set(dev, 0x0801, 0x0040);
  402. b43_phy_set(dev, 0x0060, 0x0040);
  403. b43_phy_set(dev, 0x0014, 0x0200);
  404. }
  405. b43_radio_set(dev, 0x007A, 0x0070);
  406. b43_radio_set(dev, 0x007A, 0x0080);
  407. udelay(30);
  408. v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  409. if (v47F >= 0x20)
  410. v47F -= 0x40;
  411. if (v47F == 31) {
  412. for (i = 7; i >= 4; i--) {
  413. b43_radio_write16(dev, 0x007B, i);
  414. udelay(20);
  415. v47F =
  416. (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  417. if (v47F >= 0x20)
  418. v47F -= 0x40;
  419. if (v47F < 31 && saved == 0xFFFF)
  420. saved = i;
  421. }
  422. if (saved == 0xFFFF)
  423. saved = 4;
  424. } else {
  425. b43_radio_mask(dev, 0x007A, 0x007F);
  426. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  427. b43_phy_set(dev, 0x0814, 0x0001);
  428. b43_phy_mask(dev, 0x0815, 0xFFFE);
  429. }
  430. b43_phy_set(dev, 0x0811, 0x000C);
  431. b43_phy_set(dev, 0x0812, 0x000C);
  432. b43_phy_set(dev, 0x0811, 0x0030);
  433. b43_phy_set(dev, 0x0812, 0x0030);
  434. b43_phy_write(dev, 0x005A, 0x0480);
  435. b43_phy_write(dev, 0x0059, 0x0810);
  436. b43_phy_write(dev, 0x0058, 0x000D);
  437. if (phy->rev == 0) {
  438. b43_phy_write(dev, 0x0003, 0x0122);
  439. } else {
  440. b43_phy_set(dev, 0x000A, 0x2000);
  441. }
  442. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  443. b43_phy_set(dev, 0x0814, 0x0004);
  444. b43_phy_mask(dev, 0x0815, 0xFFFB);
  445. }
  446. b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
  447. b43_radio_set(dev, 0x007A, 0x000F);
  448. b43_set_all_gains(dev, 3, 0, 1);
  449. b43_radio_maskset(dev, 0x0043, 0x00F0, 0x000F);
  450. udelay(30);
  451. v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  452. if (v47F >= 0x20)
  453. v47F -= 0x40;
  454. if (v47F == -32) {
  455. for (i = 0; i < 4; i++) {
  456. b43_radio_write16(dev, 0x007B, i);
  457. udelay(20);
  458. v47F =
  459. (s16) ((b43_phy_read(dev, 0x047F) >> 8) &
  460. 0x003F);
  461. if (v47F >= 0x20)
  462. v47F -= 0x40;
  463. if (v47F > -31 && saved == 0xFFFF)
  464. saved = i;
  465. }
  466. if (saved == 0xFFFF)
  467. saved = 3;
  468. } else
  469. saved = 0;
  470. }
  471. b43_radio_write16(dev, 0x007B, saved);
  472. if (phy->rev >= 6) {
  473. b43_phy_write(dev, 0x002E, backup[12]);
  474. b43_phy_write(dev, 0x002F, backup[13]);
  475. b43_phy_write(dev, 0x080F, backup[14]);
  476. b43_phy_write(dev, 0x0810, backup[15]);
  477. }
  478. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  479. b43_phy_write(dev, 0x0814, backup[3]);
  480. b43_phy_write(dev, 0x0815, backup[4]);
  481. }
  482. b43_phy_write(dev, 0x005A, backup[5]);
  483. b43_phy_write(dev, 0x0059, backup[6]);
  484. b43_phy_write(dev, 0x0058, backup[7]);
  485. b43_phy_write(dev, 0x000A, backup[8]);
  486. b43_phy_write(dev, 0x0003, backup[9]);
  487. b43_radio_write16(dev, 0x0043, backup[11]);
  488. b43_radio_write16(dev, 0x007A, backup[10]);
  489. b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2);
  490. b43_phy_set(dev, 0x0429, 0x8000);
  491. b43_set_original_gains(dev);
  492. if (phy->rev >= 6) {
  493. b43_phy_write(dev, 0x0801, backup[16]);
  494. b43_phy_write(dev, 0x0060, backup[17]);
  495. b43_phy_write(dev, 0x0014, backup[18]);
  496. b43_phy_write(dev, 0x0478, backup[19]);
  497. }
  498. b43_phy_write(dev, 0x0001, backup[0]);
  499. b43_phy_write(dev, 0x0812, backup[2]);
  500. b43_phy_write(dev, 0x0811, backup[1]);
  501. }
  502. static void b43_calc_nrssi_slope(struct b43_wldev *dev)
  503. {
  504. struct b43_phy *phy = &dev->phy;
  505. struct b43_phy_g *gphy = phy->g;
  506. u16 backup[18] = { 0 };
  507. u16 tmp;
  508. s16 nrssi0, nrssi1;
  509. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  510. if (phy->radio_rev >= 9)
  511. return;
  512. if (phy->radio_rev == 8)
  513. b43_calc_nrssi_offset(dev);
  514. b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
  515. b43_phy_mask(dev, 0x0802, 0xFFFC);
  516. backup[7] = b43_read16(dev, 0x03E2);
  517. b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000);
  518. backup[0] = b43_radio_read16(dev, 0x007A);
  519. backup[1] = b43_radio_read16(dev, 0x0052);
  520. backup[2] = b43_radio_read16(dev, 0x0043);
  521. backup[3] = b43_phy_read(dev, 0x0015);
  522. backup[4] = b43_phy_read(dev, 0x005A);
  523. backup[5] = b43_phy_read(dev, 0x0059);
  524. backup[6] = b43_phy_read(dev, 0x0058);
  525. backup[8] = b43_read16(dev, 0x03E6);
  526. backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT);
  527. if (phy->rev >= 3) {
  528. backup[10] = b43_phy_read(dev, 0x002E);
  529. backup[11] = b43_phy_read(dev, 0x002F);
  530. backup[12] = b43_phy_read(dev, 0x080F);
  531. backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL);
  532. backup[14] = b43_phy_read(dev, 0x0801);
  533. backup[15] = b43_phy_read(dev, 0x0060);
  534. backup[16] = b43_phy_read(dev, 0x0014);
  535. backup[17] = b43_phy_read(dev, 0x0478);
  536. b43_phy_write(dev, 0x002E, 0);
  537. b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0);
  538. switch (phy->rev) {
  539. case 4:
  540. case 6:
  541. case 7:
  542. b43_phy_set(dev, 0x0478, 0x0100);
  543. b43_phy_set(dev, 0x0801, 0x0040);
  544. break;
  545. case 3:
  546. case 5:
  547. b43_phy_mask(dev, 0x0801, 0xFFBF);
  548. break;
  549. }
  550. b43_phy_set(dev, 0x0060, 0x0040);
  551. b43_phy_set(dev, 0x0014, 0x0200);
  552. }
  553. b43_radio_set(dev, 0x007A, 0x0070);
  554. b43_set_all_gains(dev, 0, 8, 0);
  555. b43_radio_mask(dev, 0x007A, 0x00F7);
  556. if (phy->rev >= 2) {
  557. b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0030);
  558. b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0010);
  559. }
  560. b43_radio_set(dev, 0x007A, 0x0080);
  561. udelay(20);
  562. nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  563. if (nrssi0 >= 0x0020)
  564. nrssi0 -= 0x0040;
  565. b43_radio_mask(dev, 0x007A, 0x007F);
  566. if (phy->rev >= 2) {
  567. b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
  568. }
  569. b43_write16(dev, B43_MMIO_CHANNEL_EXT,
  570. b43_read16(dev, B43_MMIO_CHANNEL_EXT)
  571. | 0x2000);
  572. b43_radio_set(dev, 0x007A, 0x000F);
  573. b43_phy_write(dev, 0x0015, 0xF330);
  574. if (phy->rev >= 2) {
  575. b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0020);
  576. b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0020);
  577. }
  578. b43_set_all_gains(dev, 3, 0, 1);
  579. if (phy->radio_rev == 8) {
  580. b43_radio_write16(dev, 0x0043, 0x001F);
  581. } else {
  582. tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F;
  583. b43_radio_write16(dev, 0x0052, tmp | 0x0060);
  584. tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0;
  585. b43_radio_write16(dev, 0x0043, tmp | 0x0009);
  586. }
  587. b43_phy_write(dev, 0x005A, 0x0480);
  588. b43_phy_write(dev, 0x0059, 0x0810);
  589. b43_phy_write(dev, 0x0058, 0x000D);
  590. udelay(20);
  591. nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  592. if (nrssi1 >= 0x0020)
  593. nrssi1 -= 0x0040;
  594. if (nrssi0 == nrssi1)
  595. gphy->nrssislope = 0x00010000;
  596. else
  597. gphy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
  598. if (nrssi0 >= -4) {
  599. gphy->nrssi[0] = nrssi1;
  600. gphy->nrssi[1] = nrssi0;
  601. }
  602. if (phy->rev >= 3) {
  603. b43_phy_write(dev, 0x002E, backup[10]);
  604. b43_phy_write(dev, 0x002F, backup[11]);
  605. b43_phy_write(dev, 0x080F, backup[12]);
  606. b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]);
  607. }
  608. if (phy->rev >= 2) {
  609. b43_phy_mask(dev, 0x0812, 0xFFCF);
  610. b43_phy_mask(dev, 0x0811, 0xFFCF);
  611. }
  612. b43_radio_write16(dev, 0x007A, backup[0]);
  613. b43_radio_write16(dev, 0x0052, backup[1]);
  614. b43_radio_write16(dev, 0x0043, backup[2]);
  615. b43_write16(dev, 0x03E2, backup[7]);
  616. b43_write16(dev, 0x03E6, backup[8]);
  617. b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]);
  618. b43_phy_write(dev, 0x0015, backup[3]);
  619. b43_phy_write(dev, 0x005A, backup[4]);
  620. b43_phy_write(dev, 0x0059, backup[5]);
  621. b43_phy_write(dev, 0x0058, backup[6]);
  622. b43_synth_pu_workaround(dev, phy->channel);
  623. b43_phy_set(dev, 0x0802, (0x0001 | 0x0002));
  624. b43_set_original_gains(dev);
  625. b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
  626. if (phy->rev >= 3) {
  627. b43_phy_write(dev, 0x0801, backup[14]);
  628. b43_phy_write(dev, 0x0060, backup[15]);
  629. b43_phy_write(dev, 0x0014, backup[16]);
  630. b43_phy_write(dev, 0x0478, backup[17]);
  631. }
  632. b43_nrssi_mem_update(dev);
  633. b43_calc_nrssi_threshold(dev);
  634. }
  635. static void b43_calc_nrssi_threshold(struct b43_wldev *dev)
  636. {
  637. struct b43_phy *phy = &dev->phy;
  638. struct b43_phy_g *gphy = phy->g;
  639. s32 a, b;
  640. s16 tmp16;
  641. u16 tmp_u16;
  642. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  643. if (!phy->gmode ||
  644. !(dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI)) {
  645. tmp16 = b43_nrssi_hw_read(dev, 0x20);
  646. if (tmp16 >= 0x20)
  647. tmp16 -= 0x40;
  648. if (tmp16 < 3) {
  649. b43_phy_maskset(dev, 0x048A, 0xF000, 0x09EB);
  650. } else {
  651. b43_phy_maskset(dev, 0x048A, 0xF000, 0x0AED);
  652. }
  653. } else {
  654. if (gphy->interfmode == B43_INTERFMODE_NONWLAN) {
  655. a = 0xE;
  656. b = 0xA;
  657. } else if (!gphy->aci_wlan_automatic && gphy->aci_enable) {
  658. a = 0x13;
  659. b = 0x12;
  660. } else {
  661. a = 0xE;
  662. b = 0x11;
  663. }
  664. a = a * (gphy->nrssi[1] - gphy->nrssi[0]);
  665. a += (gphy->nrssi[0] << 6);
  666. if (a < 32)
  667. a += 31;
  668. else
  669. a += 32;
  670. a = a >> 6;
  671. a = clamp_val(a, -31, 31);
  672. b = b * (gphy->nrssi[1] - gphy->nrssi[0]);
  673. b += (gphy->nrssi[0] << 6);
  674. if (b < 32)
  675. b += 31;
  676. else
  677. b += 32;
  678. b = b >> 6;
  679. b = clamp_val(b, -31, 31);
  680. tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000;
  681. tmp_u16 |= ((u32) b & 0x0000003F);
  682. tmp_u16 |= (((u32) a & 0x0000003F) << 6);
  683. b43_phy_write(dev, 0x048A, tmp_u16);
  684. }
  685. }
  686. /* Stack implementation to save/restore values from the
  687. * interference mitigation code.
  688. * It is save to restore values in random order.
  689. */
  690. static void _stack_save(u32 *_stackptr, size_t *stackidx,
  691. u8 id, u16 offset, u16 value)
  692. {
  693. u32 *stackptr = &(_stackptr[*stackidx]);
  694. B43_WARN_ON(offset & 0xF000);
  695. B43_WARN_ON(id & 0xF0);
  696. *stackptr = offset;
  697. *stackptr |= ((u32) id) << 12;
  698. *stackptr |= ((u32) value) << 16;
  699. (*stackidx)++;
  700. B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE);
  701. }
  702. static u16 _stack_restore(u32 *stackptr, u8 id, u16 offset)
  703. {
  704. size_t i;
  705. B43_WARN_ON(offset & 0xF000);
  706. B43_WARN_ON(id & 0xF0);
  707. for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) {
  708. if ((*stackptr & 0x00000FFF) != offset)
  709. continue;
  710. if (((*stackptr & 0x0000F000) >> 12) != id)
  711. continue;
  712. return ((*stackptr & 0xFFFF0000) >> 16);
  713. }
  714. B43_WARN_ON(1);
  715. return 0;
  716. }
  717. #define phy_stacksave(offset) \
  718. do { \
  719. _stack_save(stack, &stackidx, 0x1, (offset), \
  720. b43_phy_read(dev, (offset))); \
  721. } while (0)
  722. #define phy_stackrestore(offset) \
  723. do { \
  724. b43_phy_write(dev, (offset), \
  725. _stack_restore(stack, 0x1, \
  726. (offset))); \
  727. } while (0)
  728. #define radio_stacksave(offset) \
  729. do { \
  730. _stack_save(stack, &stackidx, 0x2, (offset), \
  731. b43_radio_read16(dev, (offset))); \
  732. } while (0)
  733. #define radio_stackrestore(offset) \
  734. do { \
  735. b43_radio_write16(dev, (offset), \
  736. _stack_restore(stack, 0x2, \
  737. (offset))); \
  738. } while (0)
  739. #define ofdmtab_stacksave(table, offset) \
  740. do { \
  741. _stack_save(stack, &stackidx, 0x3, (offset)|(table), \
  742. b43_ofdmtab_read16(dev, (table), (offset))); \
  743. } while (0)
  744. #define ofdmtab_stackrestore(table, offset) \
  745. do { \
  746. b43_ofdmtab_write16(dev, (table), (offset), \
  747. _stack_restore(stack, 0x3, \
  748. (offset)|(table))); \
  749. } while (0)
  750. static void
  751. b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode)
  752. {
  753. struct b43_phy *phy = &dev->phy;
  754. struct b43_phy_g *gphy = phy->g;
  755. u16 tmp, flipped;
  756. size_t stackidx = 0;
  757. u32 *stack = gphy->interfstack;
  758. switch (mode) {
  759. case B43_INTERFMODE_NONWLAN:
  760. if (phy->rev != 1) {
  761. b43_phy_set(dev, 0x042B, 0x0800);
  762. b43_phy_mask(dev, B43_PHY_G_CRS, ~0x4000);
  763. break;
  764. }
  765. radio_stacksave(0x0078);
  766. tmp = (b43_radio_read16(dev, 0x0078) & 0x001E);
  767. B43_WARN_ON(tmp > 15);
  768. flipped = bitrev4(tmp);
  769. if (flipped < 10 && flipped >= 8)
  770. flipped = 7;
  771. else if (flipped >= 10)
  772. flipped -= 3;
  773. flipped = (bitrev4(flipped) << 1) | 0x0020;
  774. b43_radio_write16(dev, 0x0078, flipped);
  775. b43_calc_nrssi_threshold(dev);
  776. phy_stacksave(0x0406);
  777. b43_phy_write(dev, 0x0406, 0x7E28);
  778. b43_phy_set(dev, 0x042B, 0x0800);
  779. b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, 0x1000);
  780. phy_stacksave(0x04A0);
  781. b43_phy_maskset(dev, 0x04A0, 0xC0C0, 0x0008);
  782. phy_stacksave(0x04A1);
  783. b43_phy_maskset(dev, 0x04A1, 0xC0C0, 0x0605);
  784. phy_stacksave(0x04A2);
  785. b43_phy_maskset(dev, 0x04A2, 0xC0C0, 0x0204);
  786. phy_stacksave(0x04A8);
  787. b43_phy_maskset(dev, 0x04A8, 0xC0C0, 0x0803);
  788. phy_stacksave(0x04AB);
  789. b43_phy_maskset(dev, 0x04AB, 0xC0C0, 0x0605);
  790. phy_stacksave(0x04A7);
  791. b43_phy_write(dev, 0x04A7, 0x0002);
  792. phy_stacksave(0x04A3);
  793. b43_phy_write(dev, 0x04A3, 0x287A);
  794. phy_stacksave(0x04A9);
  795. b43_phy_write(dev, 0x04A9, 0x2027);
  796. phy_stacksave(0x0493);
  797. b43_phy_write(dev, 0x0493, 0x32F5);
  798. phy_stacksave(0x04AA);
  799. b43_phy_write(dev, 0x04AA, 0x2027);
  800. phy_stacksave(0x04AC);
  801. b43_phy_write(dev, 0x04AC, 0x32F5);
  802. break;
  803. case B43_INTERFMODE_MANUALWLAN:
  804. if (b43_phy_read(dev, 0x0033) & 0x0800)
  805. break;
  806. gphy->aci_enable = 1;
  807. phy_stacksave(B43_PHY_RADIO_BITFIELD);
  808. phy_stacksave(B43_PHY_G_CRS);
  809. if (phy->rev < 2) {
  810. phy_stacksave(0x0406);
  811. } else {
  812. phy_stacksave(0x04C0);
  813. phy_stacksave(0x04C1);
  814. }
  815. phy_stacksave(0x0033);
  816. phy_stacksave(0x04A7);
  817. phy_stacksave(0x04A3);
  818. phy_stacksave(0x04A9);
  819. phy_stacksave(0x04AA);
  820. phy_stacksave(0x04AC);
  821. phy_stacksave(0x0493);
  822. phy_stacksave(0x04A1);
  823. phy_stacksave(0x04A0);
  824. phy_stacksave(0x04A2);
  825. phy_stacksave(0x048A);
  826. phy_stacksave(0x04A8);
  827. phy_stacksave(0x04AB);
  828. if (phy->rev == 2) {
  829. phy_stacksave(0x04AD);
  830. phy_stacksave(0x04AE);
  831. } else if (phy->rev >= 3) {
  832. phy_stacksave(0x04AD);
  833. phy_stacksave(0x0415);
  834. phy_stacksave(0x0416);
  835. phy_stacksave(0x0417);
  836. ofdmtab_stacksave(0x1A00, 0x2);
  837. ofdmtab_stacksave(0x1A00, 0x3);
  838. }
  839. phy_stacksave(0x042B);
  840. phy_stacksave(0x048C);
  841. b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~0x1000);
  842. b43_phy_maskset(dev, B43_PHY_G_CRS, 0xFFFC, 0x0002);
  843. b43_phy_write(dev, 0x0033, 0x0800);
  844. b43_phy_write(dev, 0x04A3, 0x2027);
  845. b43_phy_write(dev, 0x04A9, 0x1CA8);
  846. b43_phy_write(dev, 0x0493, 0x287A);
  847. b43_phy_write(dev, 0x04AA, 0x1CA8);
  848. b43_phy_write(dev, 0x04AC, 0x287A);
  849. b43_phy_maskset(dev, 0x04A0, 0xFFC0, 0x001A);
  850. b43_phy_write(dev, 0x04A7, 0x000D);
  851. if (phy->rev < 2) {
  852. b43_phy_write(dev, 0x0406, 0xFF0D);
  853. } else if (phy->rev == 2) {
  854. b43_phy_write(dev, 0x04C0, 0xFFFF);
  855. b43_phy_write(dev, 0x04C1, 0x00A9);
  856. } else {
  857. b43_phy_write(dev, 0x04C0, 0x00C1);
  858. b43_phy_write(dev, 0x04C1, 0x0059);
  859. }
  860. b43_phy_maskset(dev, 0x04A1, 0xC0FF, 0x1800);
  861. b43_phy_maskset(dev, 0x04A1, 0xFFC0, 0x0015);
  862. b43_phy_maskset(dev, 0x04A8, 0xCFFF, 0x1000);
  863. b43_phy_maskset(dev, 0x04A8, 0xF0FF, 0x0A00);
  864. b43_phy_maskset(dev, 0x04AB, 0xCFFF, 0x1000);
  865. b43_phy_maskset(dev, 0x04AB, 0xF0FF, 0x0800);
  866. b43_phy_maskset(dev, 0x04AB, 0xFFCF, 0x0010);
  867. b43_phy_maskset(dev, 0x04AB, 0xFFF0, 0x0005);
  868. b43_phy_maskset(dev, 0x04A8, 0xFFCF, 0x0010);
  869. b43_phy_maskset(dev, 0x04A8, 0xFFF0, 0x0006);
  870. b43_phy_maskset(dev, 0x04A2, 0xF0FF, 0x0800);
  871. b43_phy_maskset(dev, 0x04A0, 0xF0FF, 0x0500);
  872. b43_phy_maskset(dev, 0x04A2, 0xFFF0, 0x000B);
  873. if (phy->rev >= 3) {
  874. b43_phy_mask(dev, 0x048A, (u16)~0x8000);
  875. b43_phy_maskset(dev, 0x0415, 0x8000, 0x36D8);
  876. b43_phy_maskset(dev, 0x0416, 0x8000, 0x36D8);
  877. b43_phy_maskset(dev, 0x0417, 0xFE00, 0x016D);
  878. } else {
  879. b43_phy_set(dev, 0x048A, 0x1000);
  880. b43_phy_maskset(dev, 0x048A, 0x9FFF, 0x2000);
  881. b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW);
  882. }
  883. if (phy->rev >= 2) {
  884. b43_phy_set(dev, 0x042B, 0x0800);
  885. }
  886. b43_phy_maskset(dev, 0x048C, 0xF0FF, 0x0200);
  887. if (phy->rev == 2) {
  888. b43_phy_maskset(dev, 0x04AE, 0xFF00, 0x007F);
  889. b43_phy_maskset(dev, 0x04AD, 0x00FF, 0x1300);
  890. } else if (phy->rev >= 6) {
  891. b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F);
  892. b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F);
  893. b43_phy_mask(dev, 0x04AD, 0x00FF);
  894. }
  895. b43_calc_nrssi_slope(dev);
  896. break;
  897. default:
  898. B43_WARN_ON(1);
  899. }
  900. }
  901. static void
  902. b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode)
  903. {
  904. struct b43_phy *phy = &dev->phy;
  905. struct b43_phy_g *gphy = phy->g;
  906. u32 *stack = gphy->interfstack;
  907. switch (mode) {
  908. case B43_INTERFMODE_NONWLAN:
  909. if (phy->rev != 1) {
  910. b43_phy_mask(dev, 0x042B, ~0x0800);
  911. b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
  912. break;
  913. }
  914. radio_stackrestore(0x0078);
  915. b43_calc_nrssi_threshold(dev);
  916. phy_stackrestore(0x0406);
  917. b43_phy_mask(dev, 0x042B, ~0x0800);
  918. if (!dev->bad_frames_preempt) {
  919. b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~(1 << 11));
  920. }
  921. b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
  922. phy_stackrestore(0x04A0);
  923. phy_stackrestore(0x04A1);
  924. phy_stackrestore(0x04A2);
  925. phy_stackrestore(0x04A8);
  926. phy_stackrestore(0x04AB);
  927. phy_stackrestore(0x04A7);
  928. phy_stackrestore(0x04A3);
  929. phy_stackrestore(0x04A9);
  930. phy_stackrestore(0x0493);
  931. phy_stackrestore(0x04AA);
  932. phy_stackrestore(0x04AC);
  933. break;
  934. case B43_INTERFMODE_MANUALWLAN:
  935. if (!(b43_phy_read(dev, 0x0033) & 0x0800))
  936. break;
  937. gphy->aci_enable = 0;
  938. phy_stackrestore(B43_PHY_RADIO_BITFIELD);
  939. phy_stackrestore(B43_PHY_G_CRS);
  940. phy_stackrestore(0x0033);
  941. phy_stackrestore(0x04A3);
  942. phy_stackrestore(0x04A9);
  943. phy_stackrestore(0x0493);
  944. phy_stackrestore(0x04AA);
  945. phy_stackrestore(0x04AC);
  946. phy_stackrestore(0x04A0);
  947. phy_stackrestore(0x04A7);
  948. if (phy->rev >= 2) {
  949. phy_stackrestore(0x04C0);
  950. phy_stackrestore(0x04C1);
  951. } else
  952. phy_stackrestore(0x0406);
  953. phy_stackrestore(0x04A1);
  954. phy_stackrestore(0x04AB);
  955. phy_stackrestore(0x04A8);
  956. if (phy->rev == 2) {
  957. phy_stackrestore(0x04AD);
  958. phy_stackrestore(0x04AE);
  959. } else if (phy->rev >= 3) {
  960. phy_stackrestore(0x04AD);
  961. phy_stackrestore(0x0415);
  962. phy_stackrestore(0x0416);
  963. phy_stackrestore(0x0417);
  964. ofdmtab_stackrestore(0x1A00, 0x2);
  965. ofdmtab_stackrestore(0x1A00, 0x3);
  966. }
  967. phy_stackrestore(0x04A2);
  968. phy_stackrestore(0x048A);
  969. phy_stackrestore(0x042B);
  970. phy_stackrestore(0x048C);
  971. b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW);
  972. b43_calc_nrssi_slope(dev);
  973. break;
  974. default:
  975. B43_WARN_ON(1);
  976. }
  977. }
  978. #undef phy_stacksave
  979. #undef phy_stackrestore
  980. #undef radio_stacksave
  981. #undef radio_stackrestore
  982. #undef ofdmtab_stacksave
  983. #undef ofdmtab_stackrestore
  984. static u16 b43_radio_core_calibration_value(struct b43_wldev *dev)
  985. {
  986. u16 reg, index, ret;
  987. static const u8 rcc_table[] = {
  988. 0x02, 0x03, 0x01, 0x0F,
  989. 0x06, 0x07, 0x05, 0x0F,
  990. 0x0A, 0x0B, 0x09, 0x0F,
  991. 0x0E, 0x0F, 0x0D, 0x0F,
  992. };
  993. reg = b43_radio_read16(dev, 0x60);
  994. index = (reg & 0x001E) >> 1;
  995. ret = rcc_table[index] << 1;
  996. ret |= (reg & 0x0001);
  997. ret |= 0x0020;
  998. return ret;
  999. }
  1000. #define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
  1001. static u16 radio2050_rfover_val(struct b43_wldev *dev,
  1002. u16 phy_register, unsigned int lpd)
  1003. {
  1004. struct b43_phy *phy = &dev->phy;
  1005. struct b43_phy_g *gphy = phy->g;
  1006. struct ssb_sprom *sprom = &(dev->dev->bus->sprom);
  1007. if (!phy->gmode)
  1008. return 0;
  1009. if (has_loopback_gain(phy)) {
  1010. int max_lb_gain = gphy->max_lb_gain;
  1011. u16 extlna;
  1012. u16 i;
  1013. if (phy->radio_rev == 8)
  1014. max_lb_gain += 0x3E;
  1015. else
  1016. max_lb_gain += 0x26;
  1017. if (max_lb_gain >= 0x46) {
  1018. extlna = 0x3000;
  1019. max_lb_gain -= 0x46;
  1020. } else if (max_lb_gain >= 0x3A) {
  1021. extlna = 0x1000;
  1022. max_lb_gain -= 0x3A;
  1023. } else if (max_lb_gain >= 0x2E) {
  1024. extlna = 0x2000;
  1025. max_lb_gain -= 0x2E;
  1026. } else {
  1027. extlna = 0;
  1028. max_lb_gain -= 0x10;
  1029. }
  1030. for (i = 0; i < 16; i++) {
  1031. max_lb_gain -= (i * 6);
  1032. if (max_lb_gain < 6)
  1033. break;
  1034. }
  1035. if ((phy->rev < 7) ||
  1036. !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
  1037. if (phy_register == B43_PHY_RFOVER) {
  1038. return 0x1B3;
  1039. } else if (phy_register == B43_PHY_RFOVERVAL) {
  1040. extlna |= (i << 8);
  1041. switch (lpd) {
  1042. case LPD(0, 1, 1):
  1043. return 0x0F92;
  1044. case LPD(0, 0, 1):
  1045. case LPD(1, 0, 1):
  1046. return (0x0092 | extlna);
  1047. case LPD(1, 0, 0):
  1048. return (0x0093 | extlna);
  1049. }
  1050. B43_WARN_ON(1);
  1051. }
  1052. B43_WARN_ON(1);
  1053. } else {
  1054. if (phy_register == B43_PHY_RFOVER) {
  1055. return 0x9B3;
  1056. } else if (phy_register == B43_PHY_RFOVERVAL) {
  1057. if (extlna)
  1058. extlna |= 0x8000;
  1059. extlna |= (i << 8);
  1060. switch (lpd) {
  1061. case LPD(0, 1, 1):
  1062. return 0x8F92;
  1063. case LPD(0, 0, 1):
  1064. return (0x8092 | extlna);
  1065. case LPD(1, 0, 1):
  1066. return (0x2092 | extlna);
  1067. case LPD(1, 0, 0):
  1068. return (0x2093 | extlna);
  1069. }
  1070. B43_WARN_ON(1);
  1071. }
  1072. B43_WARN_ON(1);
  1073. }
  1074. } else {
  1075. if ((phy->rev < 7) ||
  1076. !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
  1077. if (phy_register == B43_PHY_RFOVER) {
  1078. return 0x1B3;
  1079. } else if (phy_register == B43_PHY_RFOVERVAL) {
  1080. switch (lpd) {
  1081. case LPD(0, 1, 1):
  1082. return 0x0FB2;
  1083. case LPD(0, 0, 1):
  1084. return 0x00B2;
  1085. case LPD(1, 0, 1):
  1086. return 0x30B2;
  1087. case LPD(1, 0, 0):
  1088. return 0x30B3;
  1089. }
  1090. B43_WARN_ON(1);
  1091. }
  1092. B43_WARN_ON(1);
  1093. } else {
  1094. if (phy_register == B43_PHY_RFOVER) {
  1095. return 0x9B3;
  1096. } else if (phy_register == B43_PHY_RFOVERVAL) {
  1097. switch (lpd) {
  1098. case LPD(0, 1, 1):
  1099. return 0x8FB2;
  1100. case LPD(0, 0, 1):
  1101. return 0x80B2;
  1102. case LPD(1, 0, 1):
  1103. return 0x20B2;
  1104. case LPD(1, 0, 0):
  1105. return 0x20B3;
  1106. }
  1107. B43_WARN_ON(1);
  1108. }
  1109. B43_WARN_ON(1);
  1110. }
  1111. }
  1112. return 0;
  1113. }
  1114. struct init2050_saved_values {
  1115. /* Core registers */
  1116. u16 reg_3EC;
  1117. u16 reg_3E6;
  1118. u16 reg_3F4;
  1119. /* Radio registers */
  1120. u16 radio_43;
  1121. u16 radio_51;
  1122. u16 radio_52;
  1123. /* PHY registers */
  1124. u16 phy_pgactl;
  1125. u16 phy_cck_5A;
  1126. u16 phy_cck_59;
  1127. u16 phy_cck_58;
  1128. u16 phy_cck_30;
  1129. u16 phy_rfover;
  1130. u16 phy_rfoverval;
  1131. u16 phy_analogover;
  1132. u16 phy_analogoverval;
  1133. u16 phy_crs0;
  1134. u16 phy_classctl;
  1135. u16 phy_lo_mask;
  1136. u16 phy_lo_ctl;
  1137. u16 phy_syncctl;
  1138. };
  1139. static u16 b43_radio_init2050(struct b43_wldev *dev)
  1140. {
  1141. struct b43_phy *phy = &dev->phy;
  1142. struct init2050_saved_values sav;
  1143. u16 rcc;
  1144. u16 radio78;
  1145. u16 ret;
  1146. u16 i, j;
  1147. u32 tmp1 = 0, tmp2 = 0;
  1148. memset(&sav, 0, sizeof(sav)); /* get rid of "may be used uninitialized..." */
  1149. sav.radio_43 = b43_radio_read16(dev, 0x43);
  1150. sav.radio_51 = b43_radio_read16(dev, 0x51);
  1151. sav.radio_52 = b43_radio_read16(dev, 0x52);
  1152. sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL);
  1153. sav.phy_cck_5A = b43_phy_read(dev, B43_PHY_CCK(0x5A));
  1154. sav.phy_cck_59 = b43_phy_read(dev, B43_PHY_CCK(0x59));
  1155. sav.phy_cck_58 = b43_phy_read(dev, B43_PHY_CCK(0x58));
  1156. if (phy->type == B43_PHYTYPE_B) {
  1157. sav.phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30));
  1158. sav.reg_3EC = b43_read16(dev, 0x3EC);
  1159. b43_phy_write(dev, B43_PHY_CCK(0x30), 0xFF);
  1160. b43_write16(dev, 0x3EC, 0x3F3F);
  1161. } else if (phy->gmode || phy->rev >= 2) {
  1162. sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER);
  1163. sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
  1164. sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
  1165. sav.phy_analogoverval =
  1166. b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
  1167. sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0);
  1168. sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL);
  1169. b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003);
  1170. b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC);
  1171. b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF);
  1172. b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC);
  1173. if (has_loopback_gain(phy)) {
  1174. sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK);
  1175. sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL);
  1176. if (phy->rev >= 3)
  1177. b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
  1178. else
  1179. b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
  1180. b43_phy_write(dev, B43_PHY_LO_CTL, 0);
  1181. }
  1182. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1183. radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
  1184. LPD(0, 1, 1)));
  1185. b43_phy_write(dev, B43_PHY_RFOVER,
  1186. radio2050_rfover_val(dev, B43_PHY_RFOVER, 0));
  1187. }
  1188. b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000);
  1189. sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL);
  1190. b43_phy_mask(dev, B43_PHY_SYNCCTL, 0xFF7F);
  1191. sav.reg_3E6 = b43_read16(dev, 0x3E6);
  1192. sav.reg_3F4 = b43_read16(dev, 0x3F4);
  1193. if (phy->analog == 0) {
  1194. b43_write16(dev, 0x03E6, 0x0122);
  1195. } else {
  1196. if (phy->analog >= 2) {
  1197. b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFFBF, 0x40);
  1198. }
  1199. b43_write16(dev, B43_MMIO_CHANNEL_EXT,
  1200. (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000));
  1201. }
  1202. rcc = b43_radio_core_calibration_value(dev);
  1203. if (phy->type == B43_PHYTYPE_B)
  1204. b43_radio_write16(dev, 0x78, 0x26);
  1205. if (phy->gmode || phy->rev >= 2) {
  1206. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1207. radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
  1208. LPD(0, 1, 1)));
  1209. }
  1210. b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF);
  1211. b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1403);
  1212. if (phy->gmode || phy->rev >= 2) {
  1213. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1214. radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
  1215. LPD(0, 0, 1)));
  1216. }
  1217. b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0);
  1218. b43_radio_set(dev, 0x51, 0x0004);
  1219. if (phy->radio_rev == 8) {
  1220. b43_radio_write16(dev, 0x43, 0x1F);
  1221. } else {
  1222. b43_radio_write16(dev, 0x52, 0);
  1223. b43_radio_maskset(dev, 0x43, 0xFFF0, 0x0009);
  1224. }
  1225. b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
  1226. for (i = 0; i < 16; i++) {
  1227. b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0480);
  1228. b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
  1229. b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
  1230. if (phy->gmode || phy->rev >= 2) {
  1231. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1232. radio2050_rfover_val(dev,
  1233. B43_PHY_RFOVERVAL,
  1234. LPD(1, 0, 1)));
  1235. }
  1236. b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
  1237. udelay(10);
  1238. if (phy->gmode || phy->rev >= 2) {
  1239. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1240. radio2050_rfover_val(dev,
  1241. B43_PHY_RFOVERVAL,
  1242. LPD(1, 0, 1)));
  1243. }
  1244. b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
  1245. udelay(10);
  1246. if (phy->gmode || phy->rev >= 2) {
  1247. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1248. radio2050_rfover_val(dev,
  1249. B43_PHY_RFOVERVAL,
  1250. LPD(1, 0, 0)));
  1251. }
  1252. b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
  1253. udelay(20);
  1254. tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
  1255. b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
  1256. if (phy->gmode || phy->rev >= 2) {
  1257. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1258. radio2050_rfover_val(dev,
  1259. B43_PHY_RFOVERVAL,
  1260. LPD(1, 0, 1)));
  1261. }
  1262. b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
  1263. }
  1264. udelay(10);
  1265. b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
  1266. tmp1++;
  1267. tmp1 >>= 9;
  1268. for (i = 0; i < 16; i++) {
  1269. radio78 = (bitrev4(i) << 1) | 0x0020;
  1270. b43_radio_write16(dev, 0x78, radio78);
  1271. udelay(10);
  1272. for (j = 0; j < 16; j++) {
  1273. b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0D80);
  1274. b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
  1275. b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
  1276. if (phy->gmode || phy->rev >= 2) {
  1277. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1278. radio2050_rfover_val(dev,
  1279. B43_PHY_RFOVERVAL,
  1280. LPD(1, 0,
  1281. 1)));
  1282. }
  1283. b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
  1284. udelay(10);
  1285. if (phy->gmode || phy->rev >= 2) {
  1286. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1287. radio2050_rfover_val(dev,
  1288. B43_PHY_RFOVERVAL,
  1289. LPD(1, 0,
  1290. 1)));
  1291. }
  1292. b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
  1293. udelay(10);
  1294. if (phy->gmode || phy->rev >= 2) {
  1295. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1296. radio2050_rfover_val(dev,
  1297. B43_PHY_RFOVERVAL,
  1298. LPD(1, 0,
  1299. 0)));
  1300. }
  1301. b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
  1302. udelay(10);
  1303. tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
  1304. b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
  1305. if (phy->gmode || phy->rev >= 2) {
  1306. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1307. radio2050_rfover_val(dev,
  1308. B43_PHY_RFOVERVAL,
  1309. LPD(1, 0,
  1310. 1)));
  1311. }
  1312. b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
  1313. }
  1314. tmp2++;
  1315. tmp2 >>= 8;
  1316. if (tmp1 < tmp2)
  1317. break;
  1318. }
  1319. /* Restore the registers */
  1320. b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl);
  1321. b43_radio_write16(dev, 0x51, sav.radio_51);
  1322. b43_radio_write16(dev, 0x52, sav.radio_52);
  1323. b43_radio_write16(dev, 0x43, sav.radio_43);
  1324. b43_phy_write(dev, B43_PHY_CCK(0x5A), sav.phy_cck_5A);
  1325. b43_phy_write(dev, B43_PHY_CCK(0x59), sav.phy_cck_59);
  1326. b43_phy_write(dev, B43_PHY_CCK(0x58), sav.phy_cck_58);
  1327. b43_write16(dev, 0x3E6, sav.reg_3E6);
  1328. if (phy->analog != 0)
  1329. b43_write16(dev, 0x3F4, sav.reg_3F4);
  1330. b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl);
  1331. b43_synth_pu_workaround(dev, phy->channel);
  1332. if (phy->type == B43_PHYTYPE_B) {
  1333. b43_phy_write(dev, B43_PHY_CCK(0x30), sav.phy_cck_30);
  1334. b43_write16(dev, 0x3EC, sav.reg_3EC);
  1335. } else if (phy->gmode) {
  1336. b43_write16(dev, B43_MMIO_PHY_RADIO,
  1337. b43_read16(dev, B43_MMIO_PHY_RADIO)
  1338. & 0x7FFF);
  1339. b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover);
  1340. b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval);
  1341. b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover);
  1342. b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
  1343. sav.phy_analogoverval);
  1344. b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0);
  1345. b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl);
  1346. if (has_loopback_gain(phy)) {
  1347. b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask);
  1348. b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl);
  1349. }
  1350. }
  1351. if (i > 15)
  1352. ret = radio78;
  1353. else
  1354. ret = rcc;
  1355. return ret;
  1356. }
  1357. static void b43_phy_initb5(struct b43_wldev *dev)
  1358. {
  1359. struct ssb_bus *bus = dev->dev->bus;
  1360. struct b43_phy *phy = &dev->phy;
  1361. struct b43_phy_g *gphy = phy->g;
  1362. u16 offset, value;
  1363. u8 old_channel;
  1364. if (phy->analog == 1) {
  1365. b43_radio_set(dev, 0x007A, 0x0050);
  1366. }
  1367. if ((bus->boardinfo.vendor != SSB_BOARDVENDOR_BCM) &&
  1368. (bus->boardinfo.type != SSB_BOARD_BU4306)) {
  1369. value = 0x2120;
  1370. for (offset = 0x00A8; offset < 0x00C7; offset++) {
  1371. b43_phy_write(dev, offset, value);
  1372. value += 0x202;
  1373. }
  1374. }
  1375. b43_phy_maskset(dev, 0x0035, 0xF0FF, 0x0700);
  1376. if (phy->radio_ver == 0x2050)
  1377. b43_phy_write(dev, 0x0038, 0x0667);
  1378. if (phy->gmode || phy->rev >= 2) {
  1379. if (phy->radio_ver == 0x2050) {
  1380. b43_radio_set(dev, 0x007A, 0x0020);
  1381. b43_radio_set(dev, 0x0051, 0x0004);
  1382. }
  1383. b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000);
  1384. b43_phy_set(dev, 0x0802, 0x0100);
  1385. b43_phy_set(dev, 0x042B, 0x2000);
  1386. b43_phy_write(dev, 0x001C, 0x186A);
  1387. b43_phy_maskset(dev, 0x0013, 0x00FF, 0x1900);
  1388. b43_phy_maskset(dev, 0x0035, 0xFFC0, 0x0064);
  1389. b43_phy_maskset(dev, 0x005D, 0xFF80, 0x000A);
  1390. }
  1391. if (dev->bad_frames_preempt) {
  1392. b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, (1 << 11));
  1393. }
  1394. if (phy->analog == 1) {
  1395. b43_phy_write(dev, 0x0026, 0xCE00);
  1396. b43_phy_write(dev, 0x0021, 0x3763);
  1397. b43_phy_write(dev, 0x0022, 0x1BC3);
  1398. b43_phy_write(dev, 0x0023, 0x06F9);
  1399. b43_phy_write(dev, 0x0024, 0x037E);
  1400. } else
  1401. b43_phy_write(dev, 0x0026, 0xCC00);
  1402. b43_phy_write(dev, 0x0030, 0x00C6);
  1403. b43_write16(dev, 0x03EC, 0x3F22);
  1404. if (phy->analog == 1)
  1405. b43_phy_write(dev, 0x0020, 0x3E1C);
  1406. else
  1407. b43_phy_write(dev, 0x0020, 0x301C);
  1408. if (phy->analog == 0)
  1409. b43_write16(dev, 0x03E4, 0x3000);
  1410. old_channel = phy->channel;
  1411. /* Force to channel 7, even if not supported. */
  1412. b43_gphy_channel_switch(dev, 7, 0);
  1413. if (phy->radio_ver != 0x2050) {
  1414. b43_radio_write16(dev, 0x0075, 0x0080);
  1415. b43_radio_write16(dev, 0x0079, 0x0081);
  1416. }
  1417. b43_radio_write16(dev, 0x0050, 0x0020);
  1418. b43_radio_write16(dev, 0x0050, 0x0023);
  1419. if (phy->radio_ver == 0x2050) {
  1420. b43_radio_write16(dev, 0x0050, 0x0020);
  1421. b43_radio_write16(dev, 0x005A, 0x0070);
  1422. }
  1423. b43_radio_write16(dev, 0x005B, 0x007B);
  1424. b43_radio_write16(dev, 0x005C, 0x00B0);
  1425. b43_radio_set(dev, 0x007A, 0x0007);
  1426. b43_gphy_channel_switch(dev, old_channel, 0);
  1427. b43_phy_write(dev, 0x0014, 0x0080);
  1428. b43_phy_write(dev, 0x0032, 0x00CA);
  1429. b43_phy_write(dev, 0x002A, 0x88A3);
  1430. b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
  1431. if (phy->radio_ver == 0x2050)
  1432. b43_radio_write16(dev, 0x005D, 0x000D);
  1433. b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004);
  1434. }
  1435. static void b43_phy_initb6(struct b43_wldev *dev)
  1436. {
  1437. struct b43_phy *phy = &dev->phy;
  1438. struct b43_phy_g *gphy = phy->g;
  1439. u16 offset, val;
  1440. u8 old_channel;
  1441. b43_phy_write(dev, 0x003E, 0x817A);
  1442. b43_radio_write16(dev, 0x007A,
  1443. (b43_radio_read16(dev, 0x007A) | 0x0058));
  1444. if (phy->radio_rev == 4 || phy->radio_rev == 5) {
  1445. b43_radio_write16(dev, 0x51, 0x37);
  1446. b43_radio_write16(dev, 0x52, 0x70);
  1447. b43_radio_write16(dev, 0x53, 0xB3);
  1448. b43_radio_write16(dev, 0x54, 0x9B);
  1449. b43_radio_write16(dev, 0x5A, 0x88);
  1450. b43_radio_write16(dev, 0x5B, 0x88);
  1451. b43_radio_write16(dev, 0x5D, 0x88);
  1452. b43_radio_write16(dev, 0x5E, 0x88);
  1453. b43_radio_write16(dev, 0x7D, 0x88);
  1454. b43_hf_write(dev, b43_hf_read(dev)
  1455. | B43_HF_TSSIRPSMW);
  1456. }
  1457. B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7); /* We had code for these revs here... */
  1458. if (phy->radio_rev == 8) {
  1459. b43_radio_write16(dev, 0x51, 0);
  1460. b43_radio_write16(dev, 0x52, 0x40);
  1461. b43_radio_write16(dev, 0x53, 0xB7);
  1462. b43_radio_write16(dev, 0x54, 0x98);
  1463. b43_radio_write16(dev, 0x5A, 0x88);
  1464. b43_radio_write16(dev, 0x5B, 0x6B);
  1465. b43_radio_write16(dev, 0x5C, 0x0F);
  1466. if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_ALTIQ) {
  1467. b43_radio_write16(dev, 0x5D, 0xFA);
  1468. b43_radio_write16(dev, 0x5E, 0xD8);
  1469. } else {
  1470. b43_radio_write16(dev, 0x5D, 0xF5);
  1471. b43_radio_write16(dev, 0x5E, 0xB8);
  1472. }
  1473. b43_radio_write16(dev, 0x0073, 0x0003);
  1474. b43_radio_write16(dev, 0x007D, 0x00A8);
  1475. b43_radio_write16(dev, 0x007C, 0x0001);
  1476. b43_radio_write16(dev, 0x007E, 0x0008);
  1477. }
  1478. val = 0x1E1F;
  1479. for (offset = 0x0088; offset < 0x0098; offset++) {
  1480. b43_phy_write(dev, offset, val);
  1481. val -= 0x0202;
  1482. }
  1483. val = 0x3E3F;
  1484. for (offset = 0x0098; offset < 0x00A8; offset++) {
  1485. b43_phy_write(dev, offset, val);
  1486. val -= 0x0202;
  1487. }
  1488. val = 0x2120;
  1489. for (offset = 0x00A8; offset < 0x00C8; offset++) {
  1490. b43_phy_write(dev, offset, (val & 0x3F3F));
  1491. val += 0x0202;
  1492. }
  1493. if (phy->type == B43_PHYTYPE_G) {
  1494. b43_radio_set(dev, 0x007A, 0x0020);
  1495. b43_radio_set(dev, 0x0051, 0x0004);
  1496. b43_phy_set(dev, 0x0802, 0x0100);
  1497. b43_phy_set(dev, 0x042B, 0x2000);
  1498. b43_phy_write(dev, 0x5B, 0);
  1499. b43_phy_write(dev, 0x5C, 0);
  1500. }
  1501. old_channel = phy->channel;
  1502. if (old_channel >= 8)
  1503. b43_gphy_channel_switch(dev, 1, 0);
  1504. else
  1505. b43_gphy_channel_switch(dev, 13, 0);
  1506. b43_radio_write16(dev, 0x0050, 0x0020);
  1507. b43_radio_write16(dev, 0x0050, 0x0023);
  1508. udelay(40);
  1509. if (phy->radio_rev < 6 || phy->radio_rev == 8) {
  1510. b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C)
  1511. | 0x0002));
  1512. b43_radio_write16(dev, 0x50, 0x20);
  1513. }
  1514. if (phy->radio_rev <= 2) {
  1515. b43_radio_write16(dev, 0x7C, 0x20);
  1516. b43_radio_write16(dev, 0x5A, 0x70);
  1517. b43_radio_write16(dev, 0x5B, 0x7B);
  1518. b43_radio_write16(dev, 0x5C, 0xB0);
  1519. }
  1520. b43_radio_maskset(dev, 0x007A, 0x00F8, 0x0007);
  1521. b43_gphy_channel_switch(dev, old_channel, 0);
  1522. b43_phy_write(dev, 0x0014, 0x0200);
  1523. if (phy->radio_rev >= 6)
  1524. b43_phy_write(dev, 0x2A, 0x88C2);
  1525. else
  1526. b43_phy_write(dev, 0x2A, 0x8AC0);
  1527. b43_phy_write(dev, 0x0038, 0x0668);
  1528. b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
  1529. if (phy->radio_rev <= 5) {
  1530. b43_phy_maskset(dev, 0x5D, 0xFF80, 0x0003);
  1531. }
  1532. if (phy->radio_rev <= 2)
  1533. b43_radio_write16(dev, 0x005D, 0x000D);
  1534. if (phy->analog == 4) {
  1535. b43_write16(dev, 0x3E4, 9);
  1536. b43_phy_mask(dev, 0x61, 0x0FFF);
  1537. } else {
  1538. b43_phy_maskset(dev, 0x0002, 0xFFC0, 0x0004);
  1539. }
  1540. if (phy->type == B43_PHYTYPE_B)
  1541. B43_WARN_ON(1);
  1542. else if (phy->type == B43_PHYTYPE_G)
  1543. b43_write16(dev, 0x03E6, 0x0);
  1544. }
  1545. static void b43_calc_loopback_gain(struct b43_wldev *dev)
  1546. {
  1547. struct b43_phy *phy = &dev->phy;
  1548. struct b43_phy_g *gphy = phy->g;
  1549. u16 backup_phy[16] = { 0 };
  1550. u16 backup_radio[3];
  1551. u16 backup_bband;
  1552. u16 i, j, loop_i_max;
  1553. u16 trsw_rx;
  1554. u16 loop1_outer_done, loop1_inner_done;
  1555. backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0);
  1556. backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG);
  1557. backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER);
  1558. backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL);
  1559. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  1560. backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER);
  1561. backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
  1562. }
  1563. backup_phy[6] = b43_phy_read(dev, B43_PHY_CCK(0x5A));
  1564. backup_phy[7] = b43_phy_read(dev, B43_PHY_CCK(0x59));
  1565. backup_phy[8] = b43_phy_read(dev, B43_PHY_CCK(0x58));
  1566. backup_phy[9] = b43_phy_read(dev, B43_PHY_CCK(0x0A));
  1567. backup_phy[10] = b43_phy_read(dev, B43_PHY_CCK(0x03));
  1568. backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK);
  1569. backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL);
  1570. backup_phy[13] = b43_phy_read(dev, B43_PHY_CCK(0x2B));
  1571. backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL);
  1572. backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
  1573. backup_bband = gphy->bbatt.att;
  1574. backup_radio[0] = b43_radio_read16(dev, 0x52);
  1575. backup_radio[1] = b43_radio_read16(dev, 0x43);
  1576. backup_radio[2] = b43_radio_read16(dev, 0x7A);
  1577. b43_phy_mask(dev, B43_PHY_CRS0, 0x3FFF);
  1578. b43_phy_set(dev, B43_PHY_CCKBBANDCFG, 0x8000);
  1579. b43_phy_set(dev, B43_PHY_RFOVER, 0x0002);
  1580. b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFD);
  1581. b43_phy_set(dev, B43_PHY_RFOVER, 0x0001);
  1582. b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFE);
  1583. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  1584. b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0001);
  1585. b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFE);
  1586. b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0002);
  1587. b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFD);
  1588. }
  1589. b43_phy_set(dev, B43_PHY_RFOVER, 0x000C);
  1590. b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x000C);
  1591. b43_phy_set(dev, B43_PHY_RFOVER, 0x0030);
  1592. b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xFFCF, 0x10);
  1593. b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0780);
  1594. b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
  1595. b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
  1596. b43_phy_set(dev, B43_PHY_CCK(0x0A), 0x2000);
  1597. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  1598. b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0004);
  1599. b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFB);
  1600. }
  1601. b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFF9F, 0x40);
  1602. if (phy->radio_rev == 8) {
  1603. b43_radio_write16(dev, 0x43, 0x000F);
  1604. } else {
  1605. b43_radio_write16(dev, 0x52, 0);
  1606. b43_radio_maskset(dev, 0x43, 0xFFF0, 0x9);
  1607. }
  1608. b43_gphy_set_baseband_attenuation(dev, 11);
  1609. if (phy->rev >= 3)
  1610. b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
  1611. else
  1612. b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
  1613. b43_phy_write(dev, B43_PHY_LO_CTL, 0);
  1614. b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xFFC0, 0x01);
  1615. b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xC0FF, 0x800);
  1616. b43_phy_set(dev, B43_PHY_RFOVER, 0x0100);
  1617. b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xCFFF);
  1618. if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_EXTLNA) {
  1619. if (phy->rev >= 7) {
  1620. b43_phy_set(dev, B43_PHY_RFOVER, 0x0800);
  1621. b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x8000);
  1622. }
  1623. }
  1624. b43_radio_mask(dev, 0x7A, 0x00F7);
  1625. j = 0;
  1626. loop_i_max = (phy->radio_rev == 8) ? 15 : 9;
  1627. for (i = 0; i < loop_i_max; i++) {
  1628. for (j = 0; j < 16; j++) {
  1629. b43_radio_write16(dev, 0x43, i);
  1630. b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
  1631. b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
  1632. b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
  1633. udelay(20);
  1634. if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
  1635. goto exit_loop1;
  1636. }
  1637. }
  1638. exit_loop1:
  1639. loop1_outer_done = i;
  1640. loop1_inner_done = j;
  1641. if (j >= 8) {
  1642. b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x30);
  1643. trsw_rx = 0x1B;
  1644. for (j = j - 8; j < 16; j++) {
  1645. b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
  1646. b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
  1647. b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
  1648. udelay(20);
  1649. trsw_rx -= 3;
  1650. if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
  1651. goto exit_loop2;
  1652. }
  1653. } else
  1654. trsw_rx = 0x18;
  1655. exit_loop2:
  1656. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  1657. b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]);
  1658. b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]);
  1659. }
  1660. b43_phy_write(dev, B43_PHY_CCK(0x5A), backup_phy[6]);
  1661. b43_phy_write(dev, B43_PHY_CCK(0x59), backup_phy[7]);
  1662. b43_phy_write(dev, B43_PHY_CCK(0x58), backup_phy[8]);
  1663. b43_phy_write(dev, B43_PHY_CCK(0x0A), backup_phy[9]);
  1664. b43_phy_write(dev, B43_PHY_CCK(0x03), backup_phy[10]);
  1665. b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]);
  1666. b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]);
  1667. b43_phy_write(dev, B43_PHY_CCK(0x2B), backup_phy[13]);
  1668. b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]);
  1669. b43_gphy_set_baseband_attenuation(dev, backup_bband);
  1670. b43_radio_write16(dev, 0x52, backup_radio[0]);
  1671. b43_radio_write16(dev, 0x43, backup_radio[1]);
  1672. b43_radio_write16(dev, 0x7A, backup_radio[2]);
  1673. b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003);
  1674. udelay(10);
  1675. b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]);
  1676. b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]);
  1677. b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]);
  1678. b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]);
  1679. gphy->max_lb_gain =
  1680. ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11;
  1681. gphy->trsw_rx_gain = trsw_rx * 2;
  1682. }
  1683. static void b43_hardware_pctl_early_init(struct b43_wldev *dev)
  1684. {
  1685. struct b43_phy *phy = &dev->phy;
  1686. if (!b43_has_hardware_pctl(dev)) {
  1687. b43_phy_write(dev, 0x047A, 0xC111);
  1688. return;
  1689. }
  1690. b43_phy_mask(dev, 0x0036, 0xFEFF);
  1691. b43_phy_write(dev, 0x002F, 0x0202);
  1692. b43_phy_set(dev, 0x047C, 0x0002);
  1693. b43_phy_set(dev, 0x047A, 0xF000);
  1694. if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
  1695. b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
  1696. b43_phy_set(dev, 0x005D, 0x8000);
  1697. b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
  1698. b43_phy_write(dev, 0x002E, 0xC07F);
  1699. b43_phy_set(dev, 0x0036, 0x0400);
  1700. } else {
  1701. b43_phy_set(dev, 0x0036, 0x0200);
  1702. b43_phy_set(dev, 0x0036, 0x0400);
  1703. b43_phy_mask(dev, 0x005D, 0x7FFF);
  1704. b43_phy_mask(dev, 0x004F, 0xFFFE);
  1705. b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
  1706. b43_phy_write(dev, 0x002E, 0xC07F);
  1707. b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
  1708. }
  1709. }
  1710. /* Hardware power control for G-PHY */
  1711. static void b43_hardware_pctl_init_gphy(struct b43_wldev *dev)
  1712. {
  1713. struct b43_phy *phy = &dev->phy;
  1714. struct b43_phy_g *gphy = phy->g;
  1715. if (!b43_has_hardware_pctl(dev)) {
  1716. /* No hardware power control */
  1717. b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL);
  1718. return;
  1719. }
  1720. b43_phy_maskset(dev, 0x0036, 0xFFC0, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
  1721. b43_phy_maskset(dev, 0x0478, 0xFF00, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
  1722. b43_gphy_tssi_power_lt_init(dev);
  1723. b43_gphy_gain_lt_init(dev);
  1724. b43_phy_mask(dev, 0x0060, 0xFFBF);
  1725. b43_phy_write(dev, 0x0014, 0x0000);
  1726. B43_WARN_ON(phy->rev < 6);
  1727. b43_phy_set(dev, 0x0478, 0x0800);
  1728. b43_phy_mask(dev, 0x0478, 0xFEFF);
  1729. b43_phy_mask(dev, 0x0801, 0xFFBF);
  1730. b43_gphy_dc_lt_init(dev, 1);
  1731. /* Enable hardware pctl in firmware. */
  1732. b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL);
  1733. }
  1734. /* Intialize B/G PHY power control */
  1735. static void b43_phy_init_pctl(struct b43_wldev *dev)
  1736. {
  1737. struct ssb_bus *bus = dev->dev->bus;
  1738. struct b43_phy *phy = &dev->phy;
  1739. struct b43_phy_g *gphy = phy->g;
  1740. struct b43_rfatt old_rfatt;
  1741. struct b43_bbatt old_bbatt;
  1742. u8 old_tx_control = 0;
  1743. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  1744. if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) &&
  1745. (bus->boardinfo.type == SSB_BOARD_BU4306))
  1746. return;
  1747. b43_phy_write(dev, 0x0028, 0x8018);
  1748. /* This does something with the Analog... */
  1749. b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0)
  1750. & 0xFFDF);
  1751. if (!phy->gmode)
  1752. return;
  1753. b43_hardware_pctl_early_init(dev);
  1754. if (gphy->cur_idle_tssi == 0) {
  1755. if (phy->radio_ver == 0x2050 && phy->analog == 0) {
  1756. b43_radio_maskset(dev, 0x0076, 0x00F7, 0x0084);
  1757. } else {
  1758. struct b43_rfatt rfatt;
  1759. struct b43_bbatt bbatt;
  1760. memcpy(&old_rfatt, &gphy->rfatt, sizeof(old_rfatt));
  1761. memcpy(&old_bbatt, &gphy->bbatt, sizeof(old_bbatt));
  1762. old_tx_control = gphy->tx_control;
  1763. bbatt.att = 11;
  1764. if (phy->radio_rev == 8) {
  1765. rfatt.att = 15;
  1766. rfatt.with_padmix = 1;
  1767. } else {
  1768. rfatt.att = 9;
  1769. rfatt.with_padmix = 0;
  1770. }
  1771. b43_set_txpower_g(dev, &bbatt, &rfatt, 0);
  1772. }
  1773. b43_dummy_transmission(dev, false, true);
  1774. gphy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI);
  1775. if (B43_DEBUG) {
  1776. /* Current-Idle-TSSI sanity check. */
  1777. if (abs(gphy->cur_idle_tssi - gphy->tgt_idle_tssi) >= 20) {
  1778. b43dbg(dev->wl,
  1779. "!WARNING! Idle-TSSI phy->cur_idle_tssi "
  1780. "measuring failed. (cur=%d, tgt=%d). Disabling TX power "
  1781. "adjustment.\n", gphy->cur_idle_tssi,
  1782. gphy->tgt_idle_tssi);
  1783. gphy->cur_idle_tssi = 0;
  1784. }
  1785. }
  1786. if (phy->radio_ver == 0x2050 && phy->analog == 0) {
  1787. b43_radio_mask(dev, 0x0076, 0xFF7B);
  1788. } else {
  1789. b43_set_txpower_g(dev, &old_bbatt,
  1790. &old_rfatt, old_tx_control);
  1791. }
  1792. }
  1793. b43_hardware_pctl_init_gphy(dev);
  1794. b43_shm_clear_tssi(dev);
  1795. }
  1796. static void b43_phy_initg(struct b43_wldev *dev)
  1797. {
  1798. struct b43_phy *phy = &dev->phy;
  1799. struct b43_phy_g *gphy = phy->g;
  1800. u16 tmp;
  1801. if (phy->rev == 1)
  1802. b43_phy_initb5(dev);
  1803. else
  1804. b43_phy_initb6(dev);
  1805. if (phy->rev >= 2 || phy->gmode)
  1806. b43_phy_inita(dev);
  1807. if (phy->rev >= 2) {
  1808. b43_phy_write(dev, B43_PHY_ANALOGOVER, 0);
  1809. b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0);
  1810. }
  1811. if (phy->rev == 2) {
  1812. b43_phy_write(dev, B43_PHY_RFOVER, 0);
  1813. b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
  1814. }
  1815. if (phy->rev > 5) {
  1816. b43_phy_write(dev, B43_PHY_RFOVER, 0x400);
  1817. b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
  1818. }
  1819. if (phy->gmode || phy->rev >= 2) {
  1820. tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM);
  1821. tmp &= B43_PHYVER_VERSION;
  1822. if (tmp == 3 || tmp == 5) {
  1823. b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816);
  1824. b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006);
  1825. }
  1826. if (tmp == 5) {
  1827. b43_phy_maskset(dev, B43_PHY_OFDM(0xCC), 0x00FF, 0x1F00);
  1828. }
  1829. }
  1830. if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2)
  1831. b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78);
  1832. if (phy->radio_rev == 8) {
  1833. b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x80);
  1834. b43_phy_set(dev, B43_PHY_OFDM(0x3E), 0x4);
  1835. }
  1836. if (has_loopback_gain(phy))
  1837. b43_calc_loopback_gain(dev);
  1838. if (phy->radio_rev != 8) {
  1839. if (gphy->initval == 0xFFFF)
  1840. gphy->initval = b43_radio_init2050(dev);
  1841. else
  1842. b43_radio_write16(dev, 0x0078, gphy->initval);
  1843. }
  1844. b43_lo_g_init(dev);
  1845. if (has_tx_magnification(phy)) {
  1846. b43_radio_write16(dev, 0x52,
  1847. (b43_radio_read16(dev, 0x52) & 0xFF00)
  1848. | gphy->lo_control->tx_bias | gphy->
  1849. lo_control->tx_magn);
  1850. } else {
  1851. b43_radio_maskset(dev, 0x52, 0xFFF0, gphy->lo_control->tx_bias);
  1852. }
  1853. if (phy->rev >= 6) {
  1854. b43_phy_maskset(dev, B43_PHY_CCK(0x36), 0x0FFF, (gphy->lo_control->tx_bias << 12));
  1855. }
  1856. if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL)
  1857. b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8075);
  1858. else
  1859. b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x807F);
  1860. if (phy->rev < 2)
  1861. b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x101);
  1862. else
  1863. b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x202);
  1864. if (phy->gmode || phy->rev >= 2) {
  1865. b43_lo_g_adjust(dev);
  1866. b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078);
  1867. }
  1868. if (!(dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI)) {
  1869. /* The specs state to update the NRSSI LT with
  1870. * the value 0x7FFFFFFF here. I think that is some weird
  1871. * compiler optimization in the original driver.
  1872. * Essentially, what we do here is resetting all NRSSI LT
  1873. * entries to -32 (see the clamp_val() in nrssi_hw_update())
  1874. */
  1875. b43_nrssi_hw_update(dev, 0xFFFF); //FIXME?
  1876. b43_calc_nrssi_threshold(dev);
  1877. } else if (phy->gmode || phy->rev >= 2) {
  1878. if (gphy->nrssi[0] == -1000) {
  1879. B43_WARN_ON(gphy->nrssi[1] != -1000);
  1880. b43_calc_nrssi_slope(dev);
  1881. } else
  1882. b43_calc_nrssi_threshold(dev);
  1883. }
  1884. if (phy->radio_rev == 8)
  1885. b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230);
  1886. b43_phy_init_pctl(dev);
  1887. /* FIXME: The spec says in the following if, the 0 should be replaced
  1888. 'if OFDM may not be used in the current locale'
  1889. but OFDM is legal everywhere */
  1890. if ((dev->dev->bus->chip_id == 0x4306
  1891. && dev->dev->bus->chip_package == 2) || 0) {
  1892. b43_phy_mask(dev, B43_PHY_CRS0, 0xBFFF);
  1893. b43_phy_mask(dev, B43_PHY_OFDM(0xC3), 0x7FFF);
  1894. }
  1895. }
  1896. void b43_gphy_channel_switch(struct b43_wldev *dev,
  1897. unsigned int channel,
  1898. bool synthetic_pu_workaround)
  1899. {
  1900. if (synthetic_pu_workaround)
  1901. b43_synth_pu_workaround(dev, channel);
  1902. b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
  1903. if (channel == 14) {
  1904. if (dev->dev->bus->sprom.country_code ==
  1905. SSB_SPROM1CCODE_JAPAN)
  1906. b43_hf_write(dev,
  1907. b43_hf_read(dev) & ~B43_HF_ACPR);
  1908. else
  1909. b43_hf_write(dev,
  1910. b43_hf_read(dev) | B43_HF_ACPR);
  1911. b43_write16(dev, B43_MMIO_CHANNEL_EXT,
  1912. b43_read16(dev, B43_MMIO_CHANNEL_EXT)
  1913. | (1 << 11));
  1914. } else {
  1915. b43_write16(dev, B43_MMIO_CHANNEL_EXT,
  1916. b43_read16(dev, B43_MMIO_CHANNEL_EXT)
  1917. & 0xF7BF);
  1918. }
  1919. }
  1920. static void default_baseband_attenuation(struct b43_wldev *dev,
  1921. struct b43_bbatt *bb)
  1922. {
  1923. struct b43_phy *phy = &dev->phy;
  1924. if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
  1925. bb->att = 0;
  1926. else
  1927. bb->att = 2;
  1928. }
  1929. static void default_radio_attenuation(struct b43_wldev *dev,
  1930. struct b43_rfatt *rf)
  1931. {
  1932. struct ssb_bus *bus = dev->dev->bus;
  1933. struct b43_phy *phy = &dev->phy;
  1934. rf->with_padmix = 0;
  1935. if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM &&
  1936. bus->boardinfo.type == SSB_BOARD_BCM4309G) {
  1937. if (bus->boardinfo.rev < 0x43) {
  1938. rf->att = 2;
  1939. return;
  1940. } else if (bus->boardinfo.rev < 0x51) {
  1941. rf->att = 3;
  1942. return;
  1943. }
  1944. }
  1945. if (phy->type == B43_PHYTYPE_A) {
  1946. rf->att = 0x60;
  1947. return;
  1948. }
  1949. switch (phy->radio_ver) {
  1950. case 0x2053:
  1951. switch (phy->radio_rev) {
  1952. case 1:
  1953. rf->att = 6;
  1954. return;
  1955. }
  1956. break;
  1957. case 0x2050:
  1958. switch (phy->radio_rev) {
  1959. case 0:
  1960. rf->att = 5;
  1961. return;
  1962. case 1:
  1963. if (phy->type == B43_PHYTYPE_G) {
  1964. if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM
  1965. && bus->boardinfo.type == SSB_BOARD_BCM4309G
  1966. && bus->boardinfo.rev >= 30)
  1967. rf->att = 3;
  1968. else if (bus->boardinfo.vendor ==
  1969. SSB_BOARDVENDOR_BCM
  1970. && bus->boardinfo.type ==
  1971. SSB_BOARD_BU4306)
  1972. rf->att = 3;
  1973. else
  1974. rf->att = 1;
  1975. } else {
  1976. if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM
  1977. && bus->boardinfo.type == SSB_BOARD_BCM4309G
  1978. && bus->boardinfo.rev >= 30)
  1979. rf->att = 7;
  1980. else
  1981. rf->att = 6;
  1982. }
  1983. return;
  1984. case 2:
  1985. if (phy->type == B43_PHYTYPE_G) {
  1986. if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM
  1987. && bus->boardinfo.type == SSB_BOARD_BCM4309G
  1988. && bus->boardinfo.rev >= 30)
  1989. rf->att = 3;
  1990. else if (bus->boardinfo.vendor ==
  1991. SSB_BOARDVENDOR_BCM
  1992. && bus->boardinfo.type ==
  1993. SSB_BOARD_BU4306)
  1994. rf->att = 5;
  1995. else if (bus->chip_id == 0x4320)
  1996. rf->att = 4;
  1997. else
  1998. rf->att = 3;
  1999. } else
  2000. rf->att = 6;
  2001. return;
  2002. case 3:
  2003. rf->att = 5;
  2004. return;
  2005. case 4:
  2006. case 5:
  2007. rf->att = 1;
  2008. return;
  2009. case 6:
  2010. case 7:
  2011. rf->att = 5;
  2012. return;
  2013. case 8:
  2014. rf->att = 0xA;
  2015. rf->with_padmix = 1;
  2016. return;
  2017. case 9:
  2018. default:
  2019. rf->att = 5;
  2020. return;
  2021. }
  2022. }
  2023. rf->att = 5;
  2024. }
  2025. static u16 default_tx_control(struct b43_wldev *dev)
  2026. {
  2027. struct b43_phy *phy = &dev->phy;
  2028. if (phy->radio_ver != 0x2050)
  2029. return 0;
  2030. if (phy->radio_rev == 1)
  2031. return B43_TXCTL_PA2DB | B43_TXCTL_TXMIX;
  2032. if (phy->radio_rev < 6)
  2033. return B43_TXCTL_PA2DB;
  2034. if (phy->radio_rev == 8)
  2035. return B43_TXCTL_TXMIX;
  2036. return 0;
  2037. }
  2038. static u8 b43_gphy_aci_detect(struct b43_wldev *dev, u8 channel)
  2039. {
  2040. struct b43_phy *phy = &dev->phy;
  2041. struct b43_phy_g *gphy = phy->g;
  2042. u8 ret = 0;
  2043. u16 saved, rssi, temp;
  2044. int i, j = 0;
  2045. saved = b43_phy_read(dev, 0x0403);
  2046. b43_switch_channel(dev, channel);
  2047. b43_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
  2048. if (gphy->aci_hw_rssi)
  2049. rssi = b43_phy_read(dev, 0x048A) & 0x3F;
  2050. else
  2051. rssi = saved & 0x3F;
  2052. /* clamp temp to signed 5bit */
  2053. if (rssi > 32)
  2054. rssi -= 64;
  2055. for (i = 0; i < 100; i++) {
  2056. temp = (b43_phy_read(dev, 0x047F) >> 8) & 0x3F;
  2057. if (temp > 32)
  2058. temp -= 64;
  2059. if (temp < rssi)
  2060. j++;
  2061. if (j >= 20)
  2062. ret = 1;
  2063. }
  2064. b43_phy_write(dev, 0x0403, saved);
  2065. return ret;
  2066. }
  2067. static u8 b43_gphy_aci_scan(struct b43_wldev *dev)
  2068. {
  2069. struct b43_phy *phy = &dev->phy;
  2070. u8 ret[13];
  2071. unsigned int channel = phy->channel;
  2072. unsigned int i, j, start, end;
  2073. if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0)))
  2074. return 0;
  2075. b43_phy_lock(dev);
  2076. b43_radio_lock(dev);
  2077. b43_phy_mask(dev, 0x0802, 0xFFFC);
  2078. b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
  2079. b43_set_all_gains(dev, 3, 8, 1);
  2080. start = (channel - 5 > 0) ? channel - 5 : 1;
  2081. end = (channel + 5 < 14) ? channel + 5 : 13;
  2082. for (i = start; i <= end; i++) {
  2083. if (abs(channel - i) > 2)
  2084. ret[i - 1] = b43_gphy_aci_detect(dev, i);
  2085. }
  2086. b43_switch_channel(dev, channel);
  2087. b43_phy_maskset(dev, 0x0802, 0xFFFC, 0x0003);
  2088. b43_phy_mask(dev, 0x0403, 0xFFF8);
  2089. b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
  2090. b43_set_original_gains(dev);
  2091. for (i = 0; i < 13; i++) {
  2092. if (!ret[i])
  2093. continue;
  2094. end = (i + 5 < 13) ? i + 5 : 13;
  2095. for (j = i; j < end; j++)
  2096. ret[j] = 1;
  2097. }
  2098. b43_radio_unlock(dev);
  2099. b43_phy_unlock(dev);
  2100. return ret[channel - 1];
  2101. }
  2102. static s32 b43_tssi2dbm_ad(s32 num, s32 den)
  2103. {
  2104. if (num < 0)
  2105. return num / den;
  2106. else
  2107. return (num + den / 2) / den;
  2108. }
  2109. static s8 b43_tssi2dbm_entry(s8 entry[], u8 index,
  2110. s16 pab0, s16 pab1, s16 pab2)
  2111. {
  2112. s32 m1, m2, f = 256, q, delta;
  2113. s8 i = 0;
  2114. m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
  2115. m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1);
  2116. do {
  2117. if (i > 15)
  2118. return -EINVAL;
  2119. q = b43_tssi2dbm_ad(f * 4096 -
  2120. b43_tssi2dbm_ad(m2 * f, 16) * f, 2048);
  2121. delta = abs(q - f);
  2122. f = q;
  2123. i++;
  2124. } while (delta >= 2);
  2125. entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
  2126. return 0;
  2127. }
  2128. u8 *b43_generate_dyn_tssi2dbm_tab(struct b43_wldev *dev,
  2129. s16 pab0, s16 pab1, s16 pab2)
  2130. {
  2131. unsigned int i;
  2132. u8 *tab;
  2133. int err;
  2134. tab = kmalloc(64, GFP_KERNEL);
  2135. if (!tab) {
  2136. b43err(dev->wl, "Could not allocate memory "
  2137. "for tssi2dbm table\n");
  2138. return NULL;
  2139. }
  2140. for (i = 0; i < 64; i++) {
  2141. err = b43_tssi2dbm_entry(tab, i, pab0, pab1, pab2);
  2142. if (err) {
  2143. b43err(dev->wl, "Could not generate "
  2144. "tssi2dBm table\n");
  2145. kfree(tab);
  2146. return NULL;
  2147. }
  2148. }
  2149. return tab;
  2150. }
  2151. /* Initialise the TSSI->dBm lookup table */
  2152. static int b43_gphy_init_tssi2dbm_table(struct b43_wldev *dev)
  2153. {
  2154. struct b43_phy *phy = &dev->phy;
  2155. struct b43_phy_g *gphy = phy->g;
  2156. s16 pab0, pab1, pab2;
  2157. pab0 = (s16) (dev->dev->bus->sprom.pa0b0);
  2158. pab1 = (s16) (dev->dev->bus->sprom.pa0b1);
  2159. pab2 = (s16) (dev->dev->bus->sprom.pa0b2);
  2160. B43_WARN_ON((dev->dev->bus->chip_id == 0x4301) &&
  2161. (phy->radio_ver != 0x2050)); /* Not supported anymore */
  2162. gphy->dyn_tssi_tbl = 0;
  2163. if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
  2164. pab0 != -1 && pab1 != -1 && pab2 != -1) {
  2165. /* The pabX values are set in SPROM. Use them. */
  2166. if ((s8) dev->dev->bus->sprom.itssi_bg != 0 &&
  2167. (s8) dev->dev->bus->sprom.itssi_bg != -1) {
  2168. gphy->tgt_idle_tssi =
  2169. (s8) (dev->dev->bus->sprom.itssi_bg);
  2170. } else
  2171. gphy->tgt_idle_tssi = 62;
  2172. gphy->tssi2dbm = b43_generate_dyn_tssi2dbm_tab(dev, pab0,
  2173. pab1, pab2);
  2174. if (!gphy->tssi2dbm)
  2175. return -ENOMEM;
  2176. gphy->dyn_tssi_tbl = 1;
  2177. } else {
  2178. /* pabX values not set in SPROM. */
  2179. gphy->tgt_idle_tssi = 52;
  2180. gphy->tssi2dbm = b43_tssi2dbm_g_table;
  2181. }
  2182. return 0;
  2183. }
  2184. static int b43_gphy_op_allocate(struct b43_wldev *dev)
  2185. {
  2186. struct b43_phy_g *gphy;
  2187. struct b43_txpower_lo_control *lo;
  2188. int err;
  2189. gphy = kzalloc(sizeof(*gphy), GFP_KERNEL);
  2190. if (!gphy) {
  2191. err = -ENOMEM;
  2192. goto error;
  2193. }
  2194. dev->phy.g = gphy;
  2195. lo = kzalloc(sizeof(*lo), GFP_KERNEL);
  2196. if (!lo) {
  2197. err = -ENOMEM;
  2198. goto err_free_gphy;
  2199. }
  2200. gphy->lo_control = lo;
  2201. err = b43_gphy_init_tssi2dbm_table(dev);
  2202. if (err)
  2203. goto err_free_lo;
  2204. return 0;
  2205. err_free_lo:
  2206. kfree(lo);
  2207. err_free_gphy:
  2208. kfree(gphy);
  2209. error:
  2210. return err;
  2211. }
  2212. static void b43_gphy_op_prepare_structs(struct b43_wldev *dev)
  2213. {
  2214. struct b43_phy *phy = &dev->phy;
  2215. struct b43_phy_g *gphy = phy->g;
  2216. const void *tssi2dbm;
  2217. int tgt_idle_tssi;
  2218. struct b43_txpower_lo_control *lo;
  2219. unsigned int i;
  2220. /* tssi2dbm table is constant, so it is initialized at alloc time.
  2221. * Save a copy of the pointer. */
  2222. tssi2dbm = gphy->tssi2dbm;
  2223. tgt_idle_tssi = gphy->tgt_idle_tssi;
  2224. /* Save the LO pointer. */
  2225. lo = gphy->lo_control;
  2226. /* Zero out the whole PHY structure. */
  2227. memset(gphy, 0, sizeof(*gphy));
  2228. /* Restore pointers. */
  2229. gphy->tssi2dbm = tssi2dbm;
  2230. gphy->tgt_idle_tssi = tgt_idle_tssi;
  2231. gphy->lo_control = lo;
  2232. memset(gphy->minlowsig, 0xFF, sizeof(gphy->minlowsig));
  2233. /* NRSSI */
  2234. for (i = 0; i < ARRAY_SIZE(gphy->nrssi); i++)
  2235. gphy->nrssi[i] = -1000;
  2236. for (i = 0; i < ARRAY_SIZE(gphy->nrssi_lt); i++)
  2237. gphy->nrssi_lt[i] = i;
  2238. gphy->lofcal = 0xFFFF;
  2239. gphy->initval = 0xFFFF;
  2240. gphy->interfmode = B43_INTERFMODE_NONE;
  2241. /* OFDM-table address caching. */
  2242. gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
  2243. gphy->average_tssi = 0xFF;
  2244. /* Local Osciallator structure */
  2245. lo->tx_bias = 0xFF;
  2246. INIT_LIST_HEAD(&lo->calib_list);
  2247. }
  2248. static void b43_gphy_op_free(struct b43_wldev *dev)
  2249. {
  2250. struct b43_phy *phy = &dev->phy;
  2251. struct b43_phy_g *gphy = phy->g;
  2252. kfree(gphy->lo_control);
  2253. if (gphy->dyn_tssi_tbl)
  2254. kfree(gphy->tssi2dbm);
  2255. gphy->dyn_tssi_tbl = 0;
  2256. gphy->tssi2dbm = NULL;
  2257. kfree(gphy);
  2258. dev->phy.g = NULL;
  2259. }
  2260. static int b43_gphy_op_prepare_hardware(struct b43_wldev *dev)
  2261. {
  2262. struct b43_phy *phy = &dev->phy;
  2263. struct b43_phy_g *gphy = phy->g;
  2264. struct b43_txpower_lo_control *lo = gphy->lo_control;
  2265. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  2266. default_baseband_attenuation(dev, &gphy->bbatt);
  2267. default_radio_attenuation(dev, &gphy->rfatt);
  2268. gphy->tx_control = (default_tx_control(dev) << 4);
  2269. generate_rfatt_list(dev, &lo->rfatt_list);
  2270. generate_bbatt_list(dev, &lo->bbatt_list);
  2271. /* Commit previous writes */
  2272. b43_read32(dev, B43_MMIO_MACCTL);
  2273. if (phy->rev == 1) {
  2274. /* Workaround: Temporarly disable gmode through the early init
  2275. * phase, as the gmode stuff is not needed for phy rev 1 */
  2276. phy->gmode = 0;
  2277. b43_wireless_core_reset(dev, 0);
  2278. b43_phy_initg(dev);
  2279. phy->gmode = 1;
  2280. b43_wireless_core_reset(dev, B43_TMSLOW_GMODE);
  2281. }
  2282. return 0;
  2283. }
  2284. static int b43_gphy_op_init(struct b43_wldev *dev)
  2285. {
  2286. b43_phy_initg(dev);
  2287. return 0;
  2288. }
  2289. static void b43_gphy_op_exit(struct b43_wldev *dev)
  2290. {
  2291. b43_lo_g_cleanup(dev);
  2292. }
  2293. static u16 b43_gphy_op_read(struct b43_wldev *dev, u16 reg)
  2294. {
  2295. b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
  2296. return b43_read16(dev, B43_MMIO_PHY_DATA);
  2297. }
  2298. static void b43_gphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
  2299. {
  2300. b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
  2301. b43_write16(dev, B43_MMIO_PHY_DATA, value);
  2302. }
  2303. static u16 b43_gphy_op_radio_read(struct b43_wldev *dev, u16 reg)
  2304. {
  2305. /* Register 1 is a 32-bit register. */
  2306. B43_WARN_ON(reg == 1);
  2307. /* G-PHY needs 0x80 for read access. */
  2308. reg |= 0x80;
  2309. b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
  2310. return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
  2311. }
  2312. static void b43_gphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
  2313. {
  2314. /* Register 1 is a 32-bit register. */
  2315. B43_WARN_ON(reg == 1);
  2316. b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
  2317. b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
  2318. }
  2319. static bool b43_gphy_op_supports_hwpctl(struct b43_wldev *dev)
  2320. {
  2321. return (dev->phy.rev >= 6);
  2322. }
  2323. static void b43_gphy_op_software_rfkill(struct b43_wldev *dev,
  2324. bool blocked)
  2325. {
  2326. struct b43_phy *phy = &dev->phy;
  2327. struct b43_phy_g *gphy = phy->g;
  2328. unsigned int channel;
  2329. might_sleep();
  2330. if (!blocked) {
  2331. /* Turn radio ON */
  2332. if (phy->radio_on)
  2333. return;
  2334. b43_phy_write(dev, 0x0015, 0x8000);
  2335. b43_phy_write(dev, 0x0015, 0xCC00);
  2336. b43_phy_write(dev, 0x0015, (phy->gmode ? 0x00C0 : 0x0000));
  2337. if (gphy->radio_off_context.valid) {
  2338. /* Restore the RFover values. */
  2339. b43_phy_write(dev, B43_PHY_RFOVER,
  2340. gphy->radio_off_context.rfover);
  2341. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  2342. gphy->radio_off_context.rfoverval);
  2343. gphy->radio_off_context.valid = 0;
  2344. }
  2345. channel = phy->channel;
  2346. b43_gphy_channel_switch(dev, 6, 1);
  2347. b43_gphy_channel_switch(dev, channel, 0);
  2348. } else {
  2349. /* Turn radio OFF */
  2350. u16 rfover, rfoverval;
  2351. rfover = b43_phy_read(dev, B43_PHY_RFOVER);
  2352. rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
  2353. gphy->radio_off_context.rfover = rfover;
  2354. gphy->radio_off_context.rfoverval = rfoverval;
  2355. gphy->radio_off_context.valid = 1;
  2356. b43_phy_write(dev, B43_PHY_RFOVER, rfover | 0x008C);
  2357. b43_phy_write(dev, B43_PHY_RFOVERVAL, rfoverval & 0xFF73);
  2358. }
  2359. }
  2360. static int b43_gphy_op_switch_channel(struct b43_wldev *dev,
  2361. unsigned int new_channel)
  2362. {
  2363. if ((new_channel < 1) || (new_channel > 14))
  2364. return -EINVAL;
  2365. b43_gphy_channel_switch(dev, new_channel, 0);
  2366. return 0;
  2367. }
  2368. static unsigned int b43_gphy_op_get_default_chan(struct b43_wldev *dev)
  2369. {
  2370. return 1; /* Default to channel 1 */
  2371. }
  2372. static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
  2373. {
  2374. struct b43_phy *phy = &dev->phy;
  2375. u16 tmp;
  2376. int autodiv = 0;
  2377. if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
  2378. autodiv = 1;
  2379. b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
  2380. b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT,
  2381. (autodiv ? B43_ANTENNA_AUTO1 : antenna) <<
  2382. B43_PHY_BBANDCFG_RXANT_SHIFT);
  2383. if (autodiv) {
  2384. tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
  2385. if (antenna == B43_ANTENNA_AUTO1)
  2386. tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
  2387. else
  2388. tmp |= B43_PHY_ANTDWELL_AUTODIV1;
  2389. b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
  2390. }
  2391. tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT);
  2392. if (autodiv)
  2393. tmp |= B43_PHY_ANTWRSETT_ARXDIV;
  2394. else
  2395. tmp &= ~B43_PHY_ANTWRSETT_ARXDIV;
  2396. b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp);
  2397. if (autodiv)
  2398. b43_phy_set(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV);
  2399. else {
  2400. b43_phy_mask(dev, B43_PHY_ANTWRSETT,
  2401. B43_PHY_ANTWRSETT_ARXDIV);
  2402. }
  2403. if (phy->rev >= 2) {
  2404. b43_phy_set(dev, B43_PHY_OFDM61, B43_PHY_OFDM61_10);
  2405. b43_phy_maskset(dev, B43_PHY_DIVSRCHGAINBACK, 0xFF00, 0x15);
  2406. if (phy->rev == 2)
  2407. b43_phy_write(dev, B43_PHY_ADIVRELATED, 8);
  2408. else
  2409. b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8);
  2410. }
  2411. if (phy->rev >= 6)
  2412. b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC);
  2413. b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
  2414. }
  2415. static int b43_gphy_op_interf_mitigation(struct b43_wldev *dev,
  2416. enum b43_interference_mitigation mode)
  2417. {
  2418. struct b43_phy *phy = &dev->phy;
  2419. struct b43_phy_g *gphy = phy->g;
  2420. int currentmode;
  2421. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  2422. if ((phy->rev == 0) || (!phy->gmode))
  2423. return -ENODEV;
  2424. gphy->aci_wlan_automatic = 0;
  2425. switch (mode) {
  2426. case B43_INTERFMODE_AUTOWLAN:
  2427. gphy->aci_wlan_automatic = 1;
  2428. if (gphy->aci_enable)
  2429. mode = B43_INTERFMODE_MANUALWLAN;
  2430. else
  2431. mode = B43_INTERFMODE_NONE;
  2432. break;
  2433. case B43_INTERFMODE_NONE:
  2434. case B43_INTERFMODE_NONWLAN:
  2435. case B43_INTERFMODE_MANUALWLAN:
  2436. break;
  2437. default:
  2438. return -EINVAL;
  2439. }
  2440. currentmode = gphy->interfmode;
  2441. if (currentmode == mode)
  2442. return 0;
  2443. if (currentmode != B43_INTERFMODE_NONE)
  2444. b43_radio_interference_mitigation_disable(dev, currentmode);
  2445. if (mode == B43_INTERFMODE_NONE) {
  2446. gphy->aci_enable = 0;
  2447. gphy->aci_hw_rssi = 0;
  2448. } else
  2449. b43_radio_interference_mitigation_enable(dev, mode);
  2450. gphy->interfmode = mode;
  2451. return 0;
  2452. }
  2453. /* http://bcm-specs.sipsolutions.net/EstimatePowerOut
  2454. * This function converts a TSSI value to dBm in Q5.2
  2455. */
  2456. static s8 b43_gphy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
  2457. {
  2458. struct b43_phy_g *gphy = dev->phy.g;
  2459. s8 dbm;
  2460. s32 tmp;
  2461. tmp = (gphy->tgt_idle_tssi - gphy->cur_idle_tssi + tssi);
  2462. tmp = clamp_val(tmp, 0x00, 0x3F);
  2463. dbm = gphy->tssi2dbm[tmp];
  2464. return dbm;
  2465. }
  2466. static void b43_put_attenuation_into_ranges(struct b43_wldev *dev,
  2467. int *_bbatt, int *_rfatt)
  2468. {
  2469. int rfatt = *_rfatt;
  2470. int bbatt = *_bbatt;
  2471. struct b43_txpower_lo_control *lo = dev->phy.g->lo_control;
  2472. /* Get baseband and radio attenuation values into their permitted ranges.
  2473. * Radio attenuation affects power level 4 times as much as baseband. */
  2474. /* Range constants */
  2475. const int rf_min = lo->rfatt_list.min_val;
  2476. const int rf_max = lo->rfatt_list.max_val;
  2477. const int bb_min = lo->bbatt_list.min_val;
  2478. const int bb_max = lo->bbatt_list.max_val;
  2479. while (1) {
  2480. if (rfatt > rf_max && bbatt > bb_max - 4)
  2481. break; /* Can not get it into ranges */
  2482. if (rfatt < rf_min && bbatt < bb_min + 4)
  2483. break; /* Can not get it into ranges */
  2484. if (bbatt > bb_max && rfatt > rf_max - 1)
  2485. break; /* Can not get it into ranges */
  2486. if (bbatt < bb_min && rfatt < rf_min + 1)
  2487. break; /* Can not get it into ranges */
  2488. if (bbatt > bb_max) {
  2489. bbatt -= 4;
  2490. rfatt += 1;
  2491. continue;
  2492. }
  2493. if (bbatt < bb_min) {
  2494. bbatt += 4;
  2495. rfatt -= 1;
  2496. continue;
  2497. }
  2498. if (rfatt > rf_max) {
  2499. rfatt -= 1;
  2500. bbatt += 4;
  2501. continue;
  2502. }
  2503. if (rfatt < rf_min) {
  2504. rfatt += 1;
  2505. bbatt -= 4;
  2506. continue;
  2507. }
  2508. break;
  2509. }
  2510. *_rfatt = clamp_val(rfatt, rf_min, rf_max);
  2511. *_bbatt = clamp_val(bbatt, bb_min, bb_max);
  2512. }
  2513. static void b43_gphy_op_adjust_txpower(struct b43_wldev *dev)
  2514. {
  2515. struct b43_phy *phy = &dev->phy;
  2516. struct b43_phy_g *gphy = phy->g;
  2517. int rfatt, bbatt;
  2518. u8 tx_control;
  2519. b43_mac_suspend(dev);
  2520. spin_lock_irq(&dev->wl->irq_lock);
  2521. /* Calculate the new attenuation values. */
  2522. bbatt = gphy->bbatt.att;
  2523. bbatt += gphy->bbatt_delta;
  2524. rfatt = gphy->rfatt.att;
  2525. rfatt += gphy->rfatt_delta;
  2526. b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
  2527. tx_control = gphy->tx_control;
  2528. if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
  2529. if (rfatt <= 1) {
  2530. if (tx_control == 0) {
  2531. tx_control =
  2532. B43_TXCTL_PA2DB |
  2533. B43_TXCTL_TXMIX;
  2534. rfatt += 2;
  2535. bbatt += 2;
  2536. } else if (dev->dev->bus->sprom.
  2537. boardflags_lo &
  2538. B43_BFL_PACTRL) {
  2539. bbatt += 4 * (rfatt - 2);
  2540. rfatt = 2;
  2541. }
  2542. } else if (rfatt > 4 && tx_control) {
  2543. tx_control = 0;
  2544. if (bbatt < 3) {
  2545. rfatt -= 3;
  2546. bbatt += 2;
  2547. } else {
  2548. rfatt -= 2;
  2549. bbatt -= 2;
  2550. }
  2551. }
  2552. }
  2553. /* Save the control values */
  2554. gphy->tx_control = tx_control;
  2555. b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
  2556. gphy->rfatt.att = rfatt;
  2557. gphy->bbatt.att = bbatt;
  2558. /* We drop the lock early, so we can sleep during hardware
  2559. * adjustment. Possible races with op_recalc_txpower are harmless,
  2560. * as we will be called once again in case we raced. */
  2561. spin_unlock_irq(&dev->wl->irq_lock);
  2562. if (b43_debug(dev, B43_DBG_XMITPOWER))
  2563. b43dbg(dev->wl, "Adjusting TX power\n");
  2564. /* Adjust the hardware */
  2565. b43_phy_lock(dev);
  2566. b43_radio_lock(dev);
  2567. b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt,
  2568. gphy->tx_control);
  2569. b43_radio_unlock(dev);
  2570. b43_phy_unlock(dev);
  2571. b43_mac_enable(dev);
  2572. }
  2573. static enum b43_txpwr_result b43_gphy_op_recalc_txpower(struct b43_wldev *dev,
  2574. bool ignore_tssi)
  2575. {
  2576. struct b43_phy *phy = &dev->phy;
  2577. struct b43_phy_g *gphy = phy->g;
  2578. unsigned int average_tssi;
  2579. int cck_result, ofdm_result;
  2580. int estimated_pwr, desired_pwr, pwr_adjust;
  2581. int rfatt_delta, bbatt_delta;
  2582. unsigned int max_pwr;
  2583. /* First get the average TSSI */
  2584. cck_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_CCK);
  2585. ofdm_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_OFDM_G);
  2586. if ((cck_result < 0) && (ofdm_result < 0)) {
  2587. /* No TSSI information available */
  2588. if (!ignore_tssi)
  2589. goto no_adjustment_needed;
  2590. cck_result = 0;
  2591. ofdm_result = 0;
  2592. }
  2593. if (cck_result < 0)
  2594. average_tssi = ofdm_result;
  2595. else if (ofdm_result < 0)
  2596. average_tssi = cck_result;
  2597. else
  2598. average_tssi = (cck_result + ofdm_result) / 2;
  2599. /* Merge the average with the stored value. */
  2600. if (likely(gphy->average_tssi != 0xFF))
  2601. average_tssi = (average_tssi + gphy->average_tssi) / 2;
  2602. gphy->average_tssi = average_tssi;
  2603. B43_WARN_ON(average_tssi >= B43_TSSI_MAX);
  2604. /* Estimate the TX power emission based on the TSSI */
  2605. estimated_pwr = b43_gphy_estimate_power_out(dev, average_tssi);
  2606. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  2607. max_pwr = dev->dev->bus->sprom.maxpwr_bg;
  2608. if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL)
  2609. max_pwr -= 3; /* minus 0.75 */
  2610. if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) {
  2611. b43warn(dev->wl,
  2612. "Invalid max-TX-power value in SPROM.\n");
  2613. max_pwr = INT_TO_Q52(20); /* fake it */
  2614. dev->dev->bus->sprom.maxpwr_bg = max_pwr;
  2615. }
  2616. /* Get desired power (in Q5.2) */
  2617. if (phy->desired_txpower < 0)
  2618. desired_pwr = INT_TO_Q52(0);
  2619. else
  2620. desired_pwr = INT_TO_Q52(phy->desired_txpower);
  2621. /* And limit it. max_pwr already is Q5.2 */
  2622. desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
  2623. if (b43_debug(dev, B43_DBG_XMITPOWER)) {
  2624. b43dbg(dev->wl,
  2625. "[TX power] current = " Q52_FMT
  2626. " dBm, desired = " Q52_FMT
  2627. " dBm, max = " Q52_FMT "\n",
  2628. Q52_ARG(estimated_pwr),
  2629. Q52_ARG(desired_pwr),
  2630. Q52_ARG(max_pwr));
  2631. }
  2632. /* Calculate the adjustment delta. */
  2633. pwr_adjust = desired_pwr - estimated_pwr;
  2634. if (pwr_adjust == 0)
  2635. goto no_adjustment_needed;
  2636. /* RF attenuation delta. */
  2637. rfatt_delta = ((pwr_adjust + 7) / 8);
  2638. /* Lower attenuation => Bigger power output. Negate it. */
  2639. rfatt_delta = -rfatt_delta;
  2640. /* Baseband attenuation delta. */
  2641. bbatt_delta = pwr_adjust / 2;
  2642. /* Lower attenuation => Bigger power output. Negate it. */
  2643. bbatt_delta = -bbatt_delta;
  2644. /* RF att affects power level 4 times as much as
  2645. * Baseband attennuation. Subtract it. */
  2646. bbatt_delta -= 4 * rfatt_delta;
  2647. #if B43_DEBUG
  2648. if (b43_debug(dev, B43_DBG_XMITPOWER)) {
  2649. int dbm = pwr_adjust < 0 ? -pwr_adjust : pwr_adjust;
  2650. b43dbg(dev->wl,
  2651. "[TX power deltas] %s" Q52_FMT " dBm => "
  2652. "bbatt-delta = %d, rfatt-delta = %d\n",
  2653. (pwr_adjust < 0 ? "-" : ""), Q52_ARG(dbm),
  2654. bbatt_delta, rfatt_delta);
  2655. }
  2656. #endif /* DEBUG */
  2657. /* So do we finally need to adjust something in hardware? */
  2658. if ((rfatt_delta == 0) && (bbatt_delta == 0))
  2659. goto no_adjustment_needed;
  2660. /* Save the deltas for later when we adjust the power. */
  2661. gphy->bbatt_delta = bbatt_delta;
  2662. gphy->rfatt_delta = rfatt_delta;
  2663. /* We need to adjust the TX power on the device. */
  2664. return B43_TXPWR_RES_NEED_ADJUST;
  2665. no_adjustment_needed:
  2666. return B43_TXPWR_RES_DONE;
  2667. }
  2668. static void b43_gphy_op_pwork_15sec(struct b43_wldev *dev)
  2669. {
  2670. struct b43_phy *phy = &dev->phy;
  2671. struct b43_phy_g *gphy = phy->g;
  2672. b43_mac_suspend(dev);
  2673. //TODO: update_aci_moving_average
  2674. if (gphy->aci_enable && gphy->aci_wlan_automatic) {
  2675. if (!gphy->aci_enable && 1 /*TODO: not scanning? */ ) {
  2676. if (0 /*TODO: bunch of conditions */ ) {
  2677. phy->ops->interf_mitigation(dev,
  2678. B43_INTERFMODE_MANUALWLAN);
  2679. }
  2680. } else if (0 /*TODO*/) {
  2681. if (/*(aci_average > 1000) &&*/ !b43_gphy_aci_scan(dev))
  2682. phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
  2683. }
  2684. } else if (gphy->interfmode == B43_INTERFMODE_NONWLAN &&
  2685. phy->rev == 1) {
  2686. //TODO: implement rev1 workaround
  2687. }
  2688. b43_lo_g_maintanance_work(dev);
  2689. b43_mac_enable(dev);
  2690. }
  2691. static void b43_gphy_op_pwork_60sec(struct b43_wldev *dev)
  2692. {
  2693. struct b43_phy *phy = &dev->phy;
  2694. if (!(dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI))
  2695. return;
  2696. b43_mac_suspend(dev);
  2697. b43_calc_nrssi_slope(dev);
  2698. if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
  2699. u8 old_chan = phy->channel;
  2700. /* VCO Calibration */
  2701. if (old_chan >= 8)
  2702. b43_switch_channel(dev, 1);
  2703. else
  2704. b43_switch_channel(dev, 13);
  2705. b43_switch_channel(dev, old_chan);
  2706. }
  2707. b43_mac_enable(dev);
  2708. }
  2709. const struct b43_phy_operations b43_phyops_g = {
  2710. .allocate = b43_gphy_op_allocate,
  2711. .free = b43_gphy_op_free,
  2712. .prepare_structs = b43_gphy_op_prepare_structs,
  2713. .prepare_hardware = b43_gphy_op_prepare_hardware,
  2714. .init = b43_gphy_op_init,
  2715. .exit = b43_gphy_op_exit,
  2716. .phy_read = b43_gphy_op_read,
  2717. .phy_write = b43_gphy_op_write,
  2718. .radio_read = b43_gphy_op_radio_read,
  2719. .radio_write = b43_gphy_op_radio_write,
  2720. .supports_hwpctl = b43_gphy_op_supports_hwpctl,
  2721. .software_rfkill = b43_gphy_op_software_rfkill,
  2722. .switch_analog = b43_phyop_switch_analog_generic,
  2723. .switch_channel = b43_gphy_op_switch_channel,
  2724. .get_default_chan = b43_gphy_op_get_default_chan,
  2725. .set_rx_antenna = b43_gphy_op_set_rx_antenna,
  2726. .interf_mitigation = b43_gphy_op_interf_mitigation,
  2727. .recalc_txpower = b43_gphy_op_recalc_txpower,
  2728. .adjust_txpower = b43_gphy_op_adjust_txpower,
  2729. .pwork_15sec = b43_gphy_op_pwork_15sec,
  2730. .pwork_60sec = b43_gphy_op_pwork_60sec,
  2731. };