phy_g.c 81 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. Broadcom B43 wireless driver
  4. IEEE 802.11g PHY driver
  5. Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
  6. Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
  7. Copyright (c) 2005-2008 Michael Buesch <m@bues.ch>
  8. Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
  9. Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
  10. */
  11. #include "b43.h"
  12. #include "phy_g.h"
  13. #include "phy_common.h"
  14. #include "lo.h"
  15. #include "main.h"
  16. #include "wa.h"
  17. #include <linux/bitrev.h>
  18. #include <linux/slab.h>
  19. static const s8 b43_tssi2dbm_g_table[] = {
  20. 77, 77, 77, 76,
  21. 76, 76, 75, 75,
  22. 74, 74, 73, 73,
  23. 73, 72, 72, 71,
  24. 71, 70, 70, 69,
  25. 68, 68, 67, 67,
  26. 66, 65, 65, 64,
  27. 63, 63, 62, 61,
  28. 60, 59, 58, 57,
  29. 56, 55, 54, 53,
  30. 52, 50, 49, 47,
  31. 45, 43, 40, 37,
  32. 33, 28, 22, 14,
  33. 5, -7, -20, -20,
  34. -20, -20, -20, -20,
  35. -20, -20, -20, -20,
  36. };
  37. static const u8 b43_radio_channel_codes_bg[] = {
  38. 12, 17, 22, 27,
  39. 32, 37, 42, 47,
  40. 52, 57, 62, 67,
  41. 72, 84,
  42. };
  43. static void b43_calc_nrssi_threshold(struct b43_wldev *dev);
  44. #define bitrev4(tmp) (bitrev8(tmp) >> 4)
  45. /* Get the freq, as it has to be written to the device. */
  46. static inline u16 channel2freq_bg(u8 channel)
  47. {
  48. B43_WARN_ON(!(channel >= 1 && channel <= 14));
  49. return b43_radio_channel_codes_bg[channel - 1];
  50. }
  51. static void generate_rfatt_list(struct b43_wldev *dev,
  52. struct b43_rfatt_list *list)
  53. {
  54. struct b43_phy *phy = &dev->phy;
  55. /* APHY.rev < 5 || GPHY.rev < 6 */
  56. static const struct b43_rfatt rfatt_0[] = {
  57. {.att = 3,.with_padmix = 0,},
  58. {.att = 1,.with_padmix = 0,},
  59. {.att = 5,.with_padmix = 0,},
  60. {.att = 7,.with_padmix = 0,},
  61. {.att = 9,.with_padmix = 0,},
  62. {.att = 2,.with_padmix = 0,},
  63. {.att = 0,.with_padmix = 0,},
  64. {.att = 4,.with_padmix = 0,},
  65. {.att = 6,.with_padmix = 0,},
  66. {.att = 8,.with_padmix = 0,},
  67. {.att = 1,.with_padmix = 1,},
  68. {.att = 2,.with_padmix = 1,},
  69. {.att = 3,.with_padmix = 1,},
  70. {.att = 4,.with_padmix = 1,},
  71. };
  72. /* Radio.rev == 8 && Radio.version == 0x2050 */
  73. static const struct b43_rfatt rfatt_1[] = {
  74. {.att = 2,.with_padmix = 1,},
  75. {.att = 4,.with_padmix = 1,},
  76. {.att = 6,.with_padmix = 1,},
  77. {.att = 8,.with_padmix = 1,},
  78. {.att = 10,.with_padmix = 1,},
  79. {.att = 12,.with_padmix = 1,},
  80. {.att = 14,.with_padmix = 1,},
  81. };
  82. /* Otherwise */
  83. static const struct b43_rfatt rfatt_2[] = {
  84. {.att = 0,.with_padmix = 1,},
  85. {.att = 2,.with_padmix = 1,},
  86. {.att = 4,.with_padmix = 1,},
  87. {.att = 6,.with_padmix = 1,},
  88. {.att = 8,.with_padmix = 1,},
  89. {.att = 9,.with_padmix = 1,},
  90. {.att = 9,.with_padmix = 1,},
  91. };
  92. if (!b43_has_hardware_pctl(dev)) {
  93. /* Software pctl */
  94. list->list = rfatt_0;
  95. list->len = ARRAY_SIZE(rfatt_0);
  96. list->min_val = 0;
  97. list->max_val = 9;
  98. return;
  99. }
  100. if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
  101. /* Hardware pctl */
  102. list->list = rfatt_1;
  103. list->len = ARRAY_SIZE(rfatt_1);
  104. list->min_val = 0;
  105. list->max_val = 14;
  106. return;
  107. }
  108. /* Hardware pctl */
  109. list->list = rfatt_2;
  110. list->len = ARRAY_SIZE(rfatt_2);
  111. list->min_val = 0;
  112. list->max_val = 9;
  113. }
  114. static void generate_bbatt_list(struct b43_wldev *dev,
  115. struct b43_bbatt_list *list)
  116. {
  117. static const struct b43_bbatt bbatt_0[] = {
  118. {.att = 0,},
  119. {.att = 1,},
  120. {.att = 2,},
  121. {.att = 3,},
  122. {.att = 4,},
  123. {.att = 5,},
  124. {.att = 6,},
  125. {.att = 7,},
  126. {.att = 8,},
  127. };
  128. list->list = bbatt_0;
  129. list->len = ARRAY_SIZE(bbatt_0);
  130. list->min_val = 0;
  131. list->max_val = 8;
  132. }
  133. static void b43_shm_clear_tssi(struct b43_wldev *dev)
  134. {
  135. b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F);
  136. b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F);
  137. b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F);
  138. b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F);
  139. }
  140. /* Synthetic PU workaround */
  141. static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel)
  142. {
  143. struct b43_phy *phy = &dev->phy;
  144. might_sleep();
  145. if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) {
  146. /* We do not need the workaround. */
  147. return;
  148. }
  149. if (channel <= 10) {
  150. b43_write16(dev, B43_MMIO_CHANNEL,
  151. channel2freq_bg(channel + 4));
  152. } else {
  153. b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1));
  154. }
  155. msleep(1);
  156. b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
  157. }
  158. /* Set the baseband attenuation value on chip. */
  159. void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
  160. u16 baseband_attenuation)
  161. {
  162. struct b43_phy *phy = &dev->phy;
  163. if (phy->analog == 0) {
  164. b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0)
  165. & 0xFFF0) |
  166. baseband_attenuation);
  167. } else if (phy->analog > 1) {
  168. b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFFC3, (baseband_attenuation << 2));
  169. } else {
  170. b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFF87, (baseband_attenuation << 3));
  171. }
  172. }
  173. /* Adjust the transmission power output (G-PHY) */
  174. static void b43_set_txpower_g(struct b43_wldev *dev,
  175. const struct b43_bbatt *bbatt,
  176. const struct b43_rfatt *rfatt, u8 tx_control)
  177. {
  178. struct b43_phy *phy = &dev->phy;
  179. struct b43_phy_g *gphy = phy->g;
  180. struct b43_txpower_lo_control *lo = gphy->lo_control;
  181. u16 bb, rf;
  182. u16 tx_bias, tx_magn;
  183. bb = bbatt->att;
  184. rf = rfatt->att;
  185. tx_bias = lo->tx_bias;
  186. tx_magn = lo->tx_magn;
  187. if (unlikely(tx_bias == 0xFF))
  188. tx_bias = 0;
  189. /* Save the values for later. Use memmove, because it's valid
  190. * to pass &gphy->rfatt as rfatt pointer argument. Same for bbatt. */
  191. gphy->tx_control = tx_control;
  192. memmove(&gphy->rfatt, rfatt, sizeof(*rfatt));
  193. gphy->rfatt.with_padmix = !!(tx_control & B43_TXCTL_TXMIX);
  194. memmove(&gphy->bbatt, bbatt, sizeof(*bbatt));
  195. if (b43_debug(dev, B43_DBG_XMITPOWER)) {
  196. b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), "
  197. "rfatt(%u), tx_control(0x%02X), "
  198. "tx_bias(0x%02X), tx_magn(0x%02X)\n",
  199. bb, rf, tx_control, tx_bias, tx_magn);
  200. }
  201. b43_gphy_set_baseband_attenuation(dev, bb);
  202. b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf);
  203. if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
  204. b43_radio_write16(dev, 0x43,
  205. (rf & 0x000F) | (tx_control & 0x0070));
  206. } else {
  207. b43_radio_maskset(dev, 0x43, 0xFFF0, (rf & 0x000F));
  208. b43_radio_maskset(dev, 0x52, ~0x0070, (tx_control & 0x0070));
  209. }
  210. if (has_tx_magnification(phy)) {
  211. b43_radio_write16(dev, 0x52, tx_magn | tx_bias);
  212. } else {
  213. b43_radio_maskset(dev, 0x52, 0xFFF0, (tx_bias & 0x000F));
  214. }
  215. b43_lo_g_adjust(dev);
  216. }
  217. /* GPHY_TSSI_Power_Lookup_Table_Init */
  218. static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev)
  219. {
  220. struct b43_phy_g *gphy = dev->phy.g;
  221. int i;
  222. u16 value;
  223. for (i = 0; i < 32; i++)
  224. b43_ofdmtab_write16(dev, 0x3C20, i, gphy->tssi2dbm[i]);
  225. for (i = 32; i < 64; i++)
  226. b43_ofdmtab_write16(dev, 0x3C00, i - 32, gphy->tssi2dbm[i]);
  227. for (i = 0; i < 64; i += 2) {
  228. value = (u16) gphy->tssi2dbm[i];
  229. value |= ((u16) gphy->tssi2dbm[i + 1]) << 8;
  230. b43_phy_write(dev, 0x380 + (i / 2), value);
  231. }
  232. }
  233. /* GPHY_Gain_Lookup_Table_Init */
  234. static void b43_gphy_gain_lt_init(struct b43_wldev *dev)
  235. {
  236. struct b43_phy *phy = &dev->phy;
  237. struct b43_phy_g *gphy = phy->g;
  238. struct b43_txpower_lo_control *lo = gphy->lo_control;
  239. u16 nr_written = 0;
  240. u16 tmp;
  241. u8 rf, bb;
  242. for (rf = 0; rf < lo->rfatt_list.len; rf++) {
  243. for (bb = 0; bb < lo->bbatt_list.len; bb++) {
  244. if (nr_written >= 0x40)
  245. return;
  246. tmp = lo->bbatt_list.list[bb].att;
  247. tmp <<= 8;
  248. if (phy->radio_rev == 8)
  249. tmp |= 0x50;
  250. else
  251. tmp |= 0x40;
  252. tmp |= lo->rfatt_list.list[rf].att;
  253. b43_phy_write(dev, 0x3C0 + nr_written, tmp);
  254. nr_written++;
  255. }
  256. }
  257. }
  258. static void b43_set_all_gains(struct b43_wldev *dev,
  259. s16 first, s16 second, s16 third)
  260. {
  261. struct b43_phy *phy = &dev->phy;
  262. u16 i;
  263. u16 start = 0x08, end = 0x18;
  264. u16 tmp;
  265. u16 table;
  266. if (phy->rev <= 1) {
  267. start = 0x10;
  268. end = 0x20;
  269. }
  270. table = B43_OFDMTAB_GAINX;
  271. if (phy->rev <= 1)
  272. table = B43_OFDMTAB_GAINX_R1;
  273. for (i = 0; i < 4; i++)
  274. b43_ofdmtab_write16(dev, table, i, first);
  275. for (i = start; i < end; i++)
  276. b43_ofdmtab_write16(dev, table, i, second);
  277. if (third != -1) {
  278. tmp = ((u16) third << 14) | ((u16) third << 6);
  279. b43_phy_maskset(dev, 0x04A0, 0xBFBF, tmp);
  280. b43_phy_maskset(dev, 0x04A1, 0xBFBF, tmp);
  281. b43_phy_maskset(dev, 0x04A2, 0xBFBF, tmp);
  282. }
  283. b43_dummy_transmission(dev, false, true);
  284. }
  285. static void b43_set_original_gains(struct b43_wldev *dev)
  286. {
  287. struct b43_phy *phy = &dev->phy;
  288. u16 i, tmp;
  289. u16 table;
  290. u16 start = 0x0008, end = 0x0018;
  291. if (phy->rev <= 1) {
  292. start = 0x0010;
  293. end = 0x0020;
  294. }
  295. table = B43_OFDMTAB_GAINX;
  296. if (phy->rev <= 1)
  297. table = B43_OFDMTAB_GAINX_R1;
  298. for (i = 0; i < 4; i++) {
  299. tmp = (i & 0xFFFC);
  300. tmp |= (i & 0x0001) << 1;
  301. tmp |= (i & 0x0002) >> 1;
  302. b43_ofdmtab_write16(dev, table, i, tmp);
  303. }
  304. for (i = start; i < end; i++)
  305. b43_ofdmtab_write16(dev, table, i, i - start);
  306. b43_phy_maskset(dev, 0x04A0, 0xBFBF, 0x4040);
  307. b43_phy_maskset(dev, 0x04A1, 0xBFBF, 0x4040);
  308. b43_phy_maskset(dev, 0x04A2, 0xBFBF, 0x4000);
  309. b43_dummy_transmission(dev, false, true);
  310. }
  311. /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */
  312. static void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val)
  313. {
  314. b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
  315. b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val);
  316. }
  317. /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */
  318. static s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset)
  319. {
  320. u16 val;
  321. b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
  322. val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA);
  323. return (s16) val;
  324. }
  325. /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */
  326. static void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val)
  327. {
  328. u16 i;
  329. s16 tmp;
  330. for (i = 0; i < 64; i++) {
  331. tmp = b43_nrssi_hw_read(dev, i);
  332. tmp -= val;
  333. tmp = clamp_val(tmp, -32, 31);
  334. b43_nrssi_hw_write(dev, i, tmp);
  335. }
  336. }
  337. /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */
  338. static void b43_nrssi_mem_update(struct b43_wldev *dev)
  339. {
  340. struct b43_phy_g *gphy = dev->phy.g;
  341. s16 i, delta;
  342. s32 tmp;
  343. delta = 0x1F - gphy->nrssi[0];
  344. for (i = 0; i < 64; i++) {
  345. tmp = (i - delta) * gphy->nrssislope;
  346. tmp /= 0x10000;
  347. tmp += 0x3A;
  348. tmp = clamp_val(tmp, 0, 0x3F);
  349. gphy->nrssi_lt[i] = tmp;
  350. }
  351. }
  352. static void b43_calc_nrssi_offset(struct b43_wldev *dev)
  353. {
  354. struct b43_phy *phy = &dev->phy;
  355. u16 backup[20] = { 0 };
  356. s16 v47F;
  357. u16 i;
  358. u16 saved = 0xFFFF;
  359. backup[0] = b43_phy_read(dev, 0x0001);
  360. backup[1] = b43_phy_read(dev, 0x0811);
  361. backup[2] = b43_phy_read(dev, 0x0812);
  362. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  363. backup[3] = b43_phy_read(dev, 0x0814);
  364. backup[4] = b43_phy_read(dev, 0x0815);
  365. }
  366. backup[5] = b43_phy_read(dev, 0x005A);
  367. backup[6] = b43_phy_read(dev, 0x0059);
  368. backup[7] = b43_phy_read(dev, 0x0058);
  369. backup[8] = b43_phy_read(dev, 0x000A);
  370. backup[9] = b43_phy_read(dev, 0x0003);
  371. backup[10] = b43_radio_read16(dev, 0x007A);
  372. backup[11] = b43_radio_read16(dev, 0x0043);
  373. b43_phy_mask(dev, 0x0429, 0x7FFF);
  374. b43_phy_maskset(dev, 0x0001, 0x3FFF, 0x4000);
  375. b43_phy_set(dev, 0x0811, 0x000C);
  376. b43_phy_maskset(dev, 0x0812, 0xFFF3, 0x0004);
  377. b43_phy_mask(dev, 0x0802, ~(0x1 | 0x2));
  378. if (phy->rev >= 6) {
  379. backup[12] = b43_phy_read(dev, 0x002E);
  380. backup[13] = b43_phy_read(dev, 0x002F);
  381. backup[14] = b43_phy_read(dev, 0x080F);
  382. backup[15] = b43_phy_read(dev, 0x0810);
  383. backup[16] = b43_phy_read(dev, 0x0801);
  384. backup[17] = b43_phy_read(dev, 0x0060);
  385. backup[18] = b43_phy_read(dev, 0x0014);
  386. backup[19] = b43_phy_read(dev, 0x0478);
  387. b43_phy_write(dev, 0x002E, 0);
  388. b43_phy_write(dev, 0x002F, 0);
  389. b43_phy_write(dev, 0x080F, 0);
  390. b43_phy_write(dev, 0x0810, 0);
  391. b43_phy_set(dev, 0x0478, 0x0100);
  392. b43_phy_set(dev, 0x0801, 0x0040);
  393. b43_phy_set(dev, 0x0060, 0x0040);
  394. b43_phy_set(dev, 0x0014, 0x0200);
  395. }
  396. b43_radio_set(dev, 0x007A, 0x0070);
  397. b43_radio_set(dev, 0x007A, 0x0080);
  398. udelay(30);
  399. v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  400. if (v47F >= 0x20)
  401. v47F -= 0x40;
  402. if (v47F == 31) {
  403. for (i = 7; i >= 4; i--) {
  404. b43_radio_write16(dev, 0x007B, i);
  405. udelay(20);
  406. v47F =
  407. (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  408. if (v47F >= 0x20)
  409. v47F -= 0x40;
  410. if (v47F < 31 && saved == 0xFFFF)
  411. saved = i;
  412. }
  413. if (saved == 0xFFFF)
  414. saved = 4;
  415. } else {
  416. b43_radio_mask(dev, 0x007A, 0x007F);
  417. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  418. b43_phy_set(dev, 0x0814, 0x0001);
  419. b43_phy_mask(dev, 0x0815, 0xFFFE);
  420. }
  421. b43_phy_set(dev, 0x0811, 0x000C);
  422. b43_phy_set(dev, 0x0812, 0x000C);
  423. b43_phy_set(dev, 0x0811, 0x0030);
  424. b43_phy_set(dev, 0x0812, 0x0030);
  425. b43_phy_write(dev, 0x005A, 0x0480);
  426. b43_phy_write(dev, 0x0059, 0x0810);
  427. b43_phy_write(dev, 0x0058, 0x000D);
  428. if (phy->rev == 0) {
  429. b43_phy_write(dev, 0x0003, 0x0122);
  430. } else {
  431. b43_phy_set(dev, 0x000A, 0x2000);
  432. }
  433. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  434. b43_phy_set(dev, 0x0814, 0x0004);
  435. b43_phy_mask(dev, 0x0815, 0xFFFB);
  436. }
  437. b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
  438. b43_radio_set(dev, 0x007A, 0x000F);
  439. b43_set_all_gains(dev, 3, 0, 1);
  440. b43_radio_maskset(dev, 0x0043, 0x00F0, 0x000F);
  441. udelay(30);
  442. v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  443. if (v47F >= 0x20)
  444. v47F -= 0x40;
  445. if (v47F == -32) {
  446. for (i = 0; i < 4; i++) {
  447. b43_radio_write16(dev, 0x007B, i);
  448. udelay(20);
  449. v47F =
  450. (s16) ((b43_phy_read(dev, 0x047F) >> 8) &
  451. 0x003F);
  452. if (v47F >= 0x20)
  453. v47F -= 0x40;
  454. if (v47F > -31 && saved == 0xFFFF)
  455. saved = i;
  456. }
  457. if (saved == 0xFFFF)
  458. saved = 3;
  459. } else
  460. saved = 0;
  461. }
  462. b43_radio_write16(dev, 0x007B, saved);
  463. if (phy->rev >= 6) {
  464. b43_phy_write(dev, 0x002E, backup[12]);
  465. b43_phy_write(dev, 0x002F, backup[13]);
  466. b43_phy_write(dev, 0x080F, backup[14]);
  467. b43_phy_write(dev, 0x0810, backup[15]);
  468. }
  469. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  470. b43_phy_write(dev, 0x0814, backup[3]);
  471. b43_phy_write(dev, 0x0815, backup[4]);
  472. }
  473. b43_phy_write(dev, 0x005A, backup[5]);
  474. b43_phy_write(dev, 0x0059, backup[6]);
  475. b43_phy_write(dev, 0x0058, backup[7]);
  476. b43_phy_write(dev, 0x000A, backup[8]);
  477. b43_phy_write(dev, 0x0003, backup[9]);
  478. b43_radio_write16(dev, 0x0043, backup[11]);
  479. b43_radio_write16(dev, 0x007A, backup[10]);
  480. b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2);
  481. b43_phy_set(dev, 0x0429, 0x8000);
  482. b43_set_original_gains(dev);
  483. if (phy->rev >= 6) {
  484. b43_phy_write(dev, 0x0801, backup[16]);
  485. b43_phy_write(dev, 0x0060, backup[17]);
  486. b43_phy_write(dev, 0x0014, backup[18]);
  487. b43_phy_write(dev, 0x0478, backup[19]);
  488. }
  489. b43_phy_write(dev, 0x0001, backup[0]);
  490. b43_phy_write(dev, 0x0812, backup[2]);
  491. b43_phy_write(dev, 0x0811, backup[1]);
  492. }
  493. static void b43_calc_nrssi_slope(struct b43_wldev *dev)
  494. {
  495. struct b43_phy *phy = &dev->phy;
  496. struct b43_phy_g *gphy = phy->g;
  497. u16 backup[18] = { 0 };
  498. u16 tmp;
  499. s16 nrssi0, nrssi1;
  500. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  501. if (phy->radio_rev >= 9)
  502. return;
  503. if (phy->radio_rev == 8)
  504. b43_calc_nrssi_offset(dev);
  505. b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
  506. b43_phy_mask(dev, 0x0802, 0xFFFC);
  507. backup[7] = b43_read16(dev, 0x03E2);
  508. b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000);
  509. backup[0] = b43_radio_read16(dev, 0x007A);
  510. backup[1] = b43_radio_read16(dev, 0x0052);
  511. backup[2] = b43_radio_read16(dev, 0x0043);
  512. backup[3] = b43_phy_read(dev, 0x0015);
  513. backup[4] = b43_phy_read(dev, 0x005A);
  514. backup[5] = b43_phy_read(dev, 0x0059);
  515. backup[6] = b43_phy_read(dev, 0x0058);
  516. backup[8] = b43_read16(dev, 0x03E6);
  517. backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT);
  518. if (phy->rev >= 3) {
  519. backup[10] = b43_phy_read(dev, 0x002E);
  520. backup[11] = b43_phy_read(dev, 0x002F);
  521. backup[12] = b43_phy_read(dev, 0x080F);
  522. backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL);
  523. backup[14] = b43_phy_read(dev, 0x0801);
  524. backup[15] = b43_phy_read(dev, 0x0060);
  525. backup[16] = b43_phy_read(dev, 0x0014);
  526. backup[17] = b43_phy_read(dev, 0x0478);
  527. b43_phy_write(dev, 0x002E, 0);
  528. b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0);
  529. switch (phy->rev) {
  530. case 4:
  531. case 6:
  532. case 7:
  533. b43_phy_set(dev, 0x0478, 0x0100);
  534. b43_phy_set(dev, 0x0801, 0x0040);
  535. break;
  536. case 3:
  537. case 5:
  538. b43_phy_mask(dev, 0x0801, 0xFFBF);
  539. break;
  540. }
  541. b43_phy_set(dev, 0x0060, 0x0040);
  542. b43_phy_set(dev, 0x0014, 0x0200);
  543. }
  544. b43_radio_set(dev, 0x007A, 0x0070);
  545. b43_set_all_gains(dev, 0, 8, 0);
  546. b43_radio_mask(dev, 0x007A, 0x00F7);
  547. if (phy->rev >= 2) {
  548. b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0030);
  549. b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0010);
  550. }
  551. b43_radio_set(dev, 0x007A, 0x0080);
  552. udelay(20);
  553. nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  554. if (nrssi0 >= 0x0020)
  555. nrssi0 -= 0x0040;
  556. b43_radio_mask(dev, 0x007A, 0x007F);
  557. if (phy->rev >= 2) {
  558. b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
  559. }
  560. b43_write16(dev, B43_MMIO_CHANNEL_EXT,
  561. b43_read16(dev, B43_MMIO_CHANNEL_EXT)
  562. | 0x2000);
  563. b43_radio_set(dev, 0x007A, 0x000F);
  564. b43_phy_write(dev, 0x0015, 0xF330);
  565. if (phy->rev >= 2) {
  566. b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0020);
  567. b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0020);
  568. }
  569. b43_set_all_gains(dev, 3, 0, 1);
  570. if (phy->radio_rev == 8) {
  571. b43_radio_write16(dev, 0x0043, 0x001F);
  572. } else {
  573. tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F;
  574. b43_radio_write16(dev, 0x0052, tmp | 0x0060);
  575. tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0;
  576. b43_radio_write16(dev, 0x0043, tmp | 0x0009);
  577. }
  578. b43_phy_write(dev, 0x005A, 0x0480);
  579. b43_phy_write(dev, 0x0059, 0x0810);
  580. b43_phy_write(dev, 0x0058, 0x000D);
  581. udelay(20);
  582. nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
  583. if (nrssi1 >= 0x0020)
  584. nrssi1 -= 0x0040;
  585. if (nrssi0 == nrssi1)
  586. gphy->nrssislope = 0x00010000;
  587. else
  588. gphy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
  589. if (nrssi0 >= -4) {
  590. gphy->nrssi[0] = nrssi1;
  591. gphy->nrssi[1] = nrssi0;
  592. }
  593. if (phy->rev >= 3) {
  594. b43_phy_write(dev, 0x002E, backup[10]);
  595. b43_phy_write(dev, 0x002F, backup[11]);
  596. b43_phy_write(dev, 0x080F, backup[12]);
  597. b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]);
  598. }
  599. if (phy->rev >= 2) {
  600. b43_phy_mask(dev, 0x0812, 0xFFCF);
  601. b43_phy_mask(dev, 0x0811, 0xFFCF);
  602. }
  603. b43_radio_write16(dev, 0x007A, backup[0]);
  604. b43_radio_write16(dev, 0x0052, backup[1]);
  605. b43_radio_write16(dev, 0x0043, backup[2]);
  606. b43_write16(dev, 0x03E2, backup[7]);
  607. b43_write16(dev, 0x03E6, backup[8]);
  608. b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]);
  609. b43_phy_write(dev, 0x0015, backup[3]);
  610. b43_phy_write(dev, 0x005A, backup[4]);
  611. b43_phy_write(dev, 0x0059, backup[5]);
  612. b43_phy_write(dev, 0x0058, backup[6]);
  613. b43_synth_pu_workaround(dev, phy->channel);
  614. b43_phy_set(dev, 0x0802, (0x0001 | 0x0002));
  615. b43_set_original_gains(dev);
  616. b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
  617. if (phy->rev >= 3) {
  618. b43_phy_write(dev, 0x0801, backup[14]);
  619. b43_phy_write(dev, 0x0060, backup[15]);
  620. b43_phy_write(dev, 0x0014, backup[16]);
  621. b43_phy_write(dev, 0x0478, backup[17]);
  622. }
  623. b43_nrssi_mem_update(dev);
  624. b43_calc_nrssi_threshold(dev);
  625. }
  626. static void b43_calc_nrssi_threshold(struct b43_wldev *dev)
  627. {
  628. struct b43_phy *phy = &dev->phy;
  629. struct b43_phy_g *gphy = phy->g;
  630. s32 a, b;
  631. s16 tmp16;
  632. u16 tmp_u16;
  633. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  634. if (!phy->gmode ||
  635. !(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
  636. tmp16 = b43_nrssi_hw_read(dev, 0x20);
  637. if (tmp16 >= 0x20)
  638. tmp16 -= 0x40;
  639. if (tmp16 < 3) {
  640. b43_phy_maskset(dev, 0x048A, 0xF000, 0x09EB);
  641. } else {
  642. b43_phy_maskset(dev, 0x048A, 0xF000, 0x0AED);
  643. }
  644. } else {
  645. if (gphy->interfmode == B43_INTERFMODE_NONWLAN) {
  646. a = 0xE;
  647. b = 0xA;
  648. } else if (!gphy->aci_wlan_automatic && gphy->aci_enable) {
  649. a = 0x13;
  650. b = 0x12;
  651. } else {
  652. a = 0xE;
  653. b = 0x11;
  654. }
  655. a = a * (gphy->nrssi[1] - gphy->nrssi[0]);
  656. a += (gphy->nrssi[0] << 6);
  657. if (a < 32)
  658. a += 31;
  659. else
  660. a += 32;
  661. a = a >> 6;
  662. a = clamp_val(a, -31, 31);
  663. b = b * (gphy->nrssi[1] - gphy->nrssi[0]);
  664. b += (gphy->nrssi[0] << 6);
  665. if (b < 32)
  666. b += 31;
  667. else
  668. b += 32;
  669. b = b >> 6;
  670. b = clamp_val(b, -31, 31);
  671. tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000;
  672. tmp_u16 |= ((u32) b & 0x0000003F);
  673. tmp_u16 |= (((u32) a & 0x0000003F) << 6);
  674. b43_phy_write(dev, 0x048A, tmp_u16);
  675. }
  676. }
  677. /* Stack implementation to save/restore values from the
  678. * interference mitigation code.
  679. * It is save to restore values in random order.
  680. */
  681. static void _stack_save(u32 *_stackptr, size_t *stackidx,
  682. u8 id, u16 offset, u16 value)
  683. {
  684. u32 *stackptr = &(_stackptr[*stackidx]);
  685. B43_WARN_ON(offset & 0xF000);
  686. B43_WARN_ON(id & 0xF0);
  687. *stackptr = offset;
  688. *stackptr |= ((u32) id) << 12;
  689. *stackptr |= ((u32) value) << 16;
  690. (*stackidx)++;
  691. B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE);
  692. }
  693. static u16 _stack_restore(u32 *stackptr, u8 id, u16 offset)
  694. {
  695. size_t i;
  696. B43_WARN_ON(offset & 0xF000);
  697. B43_WARN_ON(id & 0xF0);
  698. for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) {
  699. if ((*stackptr & 0x00000FFF) != offset)
  700. continue;
  701. if (((*stackptr & 0x0000F000) >> 12) != id)
  702. continue;
  703. return ((*stackptr & 0xFFFF0000) >> 16);
  704. }
  705. B43_WARN_ON(1);
  706. return 0;
  707. }
  708. #define phy_stacksave(offset) \
  709. do { \
  710. _stack_save(stack, &stackidx, 0x1, (offset), \
  711. b43_phy_read(dev, (offset))); \
  712. } while (0)
  713. #define phy_stackrestore(offset) \
  714. do { \
  715. b43_phy_write(dev, (offset), \
  716. _stack_restore(stack, 0x1, \
  717. (offset))); \
  718. } while (0)
  719. #define radio_stacksave(offset) \
  720. do { \
  721. _stack_save(stack, &stackidx, 0x2, (offset), \
  722. b43_radio_read16(dev, (offset))); \
  723. } while (0)
  724. #define radio_stackrestore(offset) \
  725. do { \
  726. b43_radio_write16(dev, (offset), \
  727. _stack_restore(stack, 0x2, \
  728. (offset))); \
  729. } while (0)
  730. #define ofdmtab_stacksave(table, offset) \
  731. do { \
  732. _stack_save(stack, &stackidx, 0x3, (offset)|(table), \
  733. b43_ofdmtab_read16(dev, (table), (offset))); \
  734. } while (0)
  735. #define ofdmtab_stackrestore(table, offset) \
  736. do { \
  737. b43_ofdmtab_write16(dev, (table), (offset), \
  738. _stack_restore(stack, 0x3, \
  739. (offset)|(table))); \
  740. } while (0)
  741. static void
  742. b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode)
  743. {
  744. struct b43_phy *phy = &dev->phy;
  745. struct b43_phy_g *gphy = phy->g;
  746. u16 tmp, flipped;
  747. size_t stackidx = 0;
  748. u32 *stack = gphy->interfstack;
  749. switch (mode) {
  750. case B43_INTERFMODE_NONWLAN:
  751. if (phy->rev != 1) {
  752. b43_phy_set(dev, 0x042B, 0x0800);
  753. b43_phy_mask(dev, B43_PHY_G_CRS, ~0x4000);
  754. break;
  755. }
  756. radio_stacksave(0x0078);
  757. tmp = (b43_radio_read16(dev, 0x0078) & 0x001E);
  758. B43_WARN_ON(tmp > 15);
  759. flipped = bitrev4(tmp);
  760. if (flipped < 10 && flipped >= 8)
  761. flipped = 7;
  762. else if (flipped >= 10)
  763. flipped -= 3;
  764. flipped = (bitrev4(flipped) << 1) | 0x0020;
  765. b43_radio_write16(dev, 0x0078, flipped);
  766. b43_calc_nrssi_threshold(dev);
  767. phy_stacksave(0x0406);
  768. b43_phy_write(dev, 0x0406, 0x7E28);
  769. b43_phy_set(dev, 0x042B, 0x0800);
  770. b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, 0x1000);
  771. phy_stacksave(0x04A0);
  772. b43_phy_maskset(dev, 0x04A0, 0xC0C0, 0x0008);
  773. phy_stacksave(0x04A1);
  774. b43_phy_maskset(dev, 0x04A1, 0xC0C0, 0x0605);
  775. phy_stacksave(0x04A2);
  776. b43_phy_maskset(dev, 0x04A2, 0xC0C0, 0x0204);
  777. phy_stacksave(0x04A8);
  778. b43_phy_maskset(dev, 0x04A8, 0xC0C0, 0x0803);
  779. phy_stacksave(0x04AB);
  780. b43_phy_maskset(dev, 0x04AB, 0xC0C0, 0x0605);
  781. phy_stacksave(0x04A7);
  782. b43_phy_write(dev, 0x04A7, 0x0002);
  783. phy_stacksave(0x04A3);
  784. b43_phy_write(dev, 0x04A3, 0x287A);
  785. phy_stacksave(0x04A9);
  786. b43_phy_write(dev, 0x04A9, 0x2027);
  787. phy_stacksave(0x0493);
  788. b43_phy_write(dev, 0x0493, 0x32F5);
  789. phy_stacksave(0x04AA);
  790. b43_phy_write(dev, 0x04AA, 0x2027);
  791. phy_stacksave(0x04AC);
  792. b43_phy_write(dev, 0x04AC, 0x32F5);
  793. break;
  794. case B43_INTERFMODE_MANUALWLAN:
  795. if (b43_phy_read(dev, 0x0033) & 0x0800)
  796. break;
  797. gphy->aci_enable = true;
  798. phy_stacksave(B43_PHY_RADIO_BITFIELD);
  799. phy_stacksave(B43_PHY_G_CRS);
  800. if (phy->rev < 2) {
  801. phy_stacksave(0x0406);
  802. } else {
  803. phy_stacksave(0x04C0);
  804. phy_stacksave(0x04C1);
  805. }
  806. phy_stacksave(0x0033);
  807. phy_stacksave(0x04A7);
  808. phy_stacksave(0x04A3);
  809. phy_stacksave(0x04A9);
  810. phy_stacksave(0x04AA);
  811. phy_stacksave(0x04AC);
  812. phy_stacksave(0x0493);
  813. phy_stacksave(0x04A1);
  814. phy_stacksave(0x04A0);
  815. phy_stacksave(0x04A2);
  816. phy_stacksave(0x048A);
  817. phy_stacksave(0x04A8);
  818. phy_stacksave(0x04AB);
  819. if (phy->rev == 2) {
  820. phy_stacksave(0x04AD);
  821. phy_stacksave(0x04AE);
  822. } else if (phy->rev >= 3) {
  823. phy_stacksave(0x04AD);
  824. phy_stacksave(0x0415);
  825. phy_stacksave(0x0416);
  826. phy_stacksave(0x0417);
  827. ofdmtab_stacksave(0x1A00, 0x2);
  828. ofdmtab_stacksave(0x1A00, 0x3);
  829. }
  830. phy_stacksave(0x042B);
  831. phy_stacksave(0x048C);
  832. b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~0x1000);
  833. b43_phy_maskset(dev, B43_PHY_G_CRS, 0xFFFC, 0x0002);
  834. b43_phy_write(dev, 0x0033, 0x0800);
  835. b43_phy_write(dev, 0x04A3, 0x2027);
  836. b43_phy_write(dev, 0x04A9, 0x1CA8);
  837. b43_phy_write(dev, 0x0493, 0x287A);
  838. b43_phy_write(dev, 0x04AA, 0x1CA8);
  839. b43_phy_write(dev, 0x04AC, 0x287A);
  840. b43_phy_maskset(dev, 0x04A0, 0xFFC0, 0x001A);
  841. b43_phy_write(dev, 0x04A7, 0x000D);
  842. if (phy->rev < 2) {
  843. b43_phy_write(dev, 0x0406, 0xFF0D);
  844. } else if (phy->rev == 2) {
  845. b43_phy_write(dev, 0x04C0, 0xFFFF);
  846. b43_phy_write(dev, 0x04C1, 0x00A9);
  847. } else {
  848. b43_phy_write(dev, 0x04C0, 0x00C1);
  849. b43_phy_write(dev, 0x04C1, 0x0059);
  850. }
  851. b43_phy_maskset(dev, 0x04A1, 0xC0FF, 0x1800);
  852. b43_phy_maskset(dev, 0x04A1, 0xFFC0, 0x0015);
  853. b43_phy_maskset(dev, 0x04A8, 0xCFFF, 0x1000);
  854. b43_phy_maskset(dev, 0x04A8, 0xF0FF, 0x0A00);
  855. b43_phy_maskset(dev, 0x04AB, 0xCFFF, 0x1000);
  856. b43_phy_maskset(dev, 0x04AB, 0xF0FF, 0x0800);
  857. b43_phy_maskset(dev, 0x04AB, 0xFFCF, 0x0010);
  858. b43_phy_maskset(dev, 0x04AB, 0xFFF0, 0x0005);
  859. b43_phy_maskset(dev, 0x04A8, 0xFFCF, 0x0010);
  860. b43_phy_maskset(dev, 0x04A8, 0xFFF0, 0x0006);
  861. b43_phy_maskset(dev, 0x04A2, 0xF0FF, 0x0800);
  862. b43_phy_maskset(dev, 0x04A0, 0xF0FF, 0x0500);
  863. b43_phy_maskset(dev, 0x04A2, 0xFFF0, 0x000B);
  864. if (phy->rev >= 3) {
  865. b43_phy_mask(dev, 0x048A, 0x7FFF);
  866. b43_phy_maskset(dev, 0x0415, 0x8000, 0x36D8);
  867. b43_phy_maskset(dev, 0x0416, 0x8000, 0x36D8);
  868. b43_phy_maskset(dev, 0x0417, 0xFE00, 0x016D);
  869. } else {
  870. b43_phy_set(dev, 0x048A, 0x1000);
  871. b43_phy_maskset(dev, 0x048A, 0x9FFF, 0x2000);
  872. b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW);
  873. }
  874. if (phy->rev >= 2) {
  875. b43_phy_set(dev, 0x042B, 0x0800);
  876. }
  877. b43_phy_maskset(dev, 0x048C, 0xF0FF, 0x0200);
  878. if (phy->rev == 2) {
  879. b43_phy_maskset(dev, 0x04AE, 0xFF00, 0x007F);
  880. b43_phy_maskset(dev, 0x04AD, 0x00FF, 0x1300);
  881. } else if (phy->rev >= 6) {
  882. b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F);
  883. b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F);
  884. b43_phy_mask(dev, 0x04AD, 0x00FF);
  885. }
  886. b43_calc_nrssi_slope(dev);
  887. break;
  888. default:
  889. B43_WARN_ON(1);
  890. }
  891. }
  892. static void
  893. b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode)
  894. {
  895. struct b43_phy *phy = &dev->phy;
  896. struct b43_phy_g *gphy = phy->g;
  897. u32 *stack = gphy->interfstack;
  898. switch (mode) {
  899. case B43_INTERFMODE_NONWLAN:
  900. if (phy->rev != 1) {
  901. b43_phy_mask(dev, 0x042B, ~0x0800);
  902. b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
  903. break;
  904. }
  905. radio_stackrestore(0x0078);
  906. b43_calc_nrssi_threshold(dev);
  907. phy_stackrestore(0x0406);
  908. b43_phy_mask(dev, 0x042B, ~0x0800);
  909. if (!dev->bad_frames_preempt) {
  910. b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~(1 << 11));
  911. }
  912. b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
  913. phy_stackrestore(0x04A0);
  914. phy_stackrestore(0x04A1);
  915. phy_stackrestore(0x04A2);
  916. phy_stackrestore(0x04A8);
  917. phy_stackrestore(0x04AB);
  918. phy_stackrestore(0x04A7);
  919. phy_stackrestore(0x04A3);
  920. phy_stackrestore(0x04A9);
  921. phy_stackrestore(0x0493);
  922. phy_stackrestore(0x04AA);
  923. phy_stackrestore(0x04AC);
  924. break;
  925. case B43_INTERFMODE_MANUALWLAN:
  926. if (!(b43_phy_read(dev, 0x0033) & 0x0800))
  927. break;
  928. gphy->aci_enable = false;
  929. phy_stackrestore(B43_PHY_RADIO_BITFIELD);
  930. phy_stackrestore(B43_PHY_G_CRS);
  931. phy_stackrestore(0x0033);
  932. phy_stackrestore(0x04A3);
  933. phy_stackrestore(0x04A9);
  934. phy_stackrestore(0x0493);
  935. phy_stackrestore(0x04AA);
  936. phy_stackrestore(0x04AC);
  937. phy_stackrestore(0x04A0);
  938. phy_stackrestore(0x04A7);
  939. if (phy->rev >= 2) {
  940. phy_stackrestore(0x04C0);
  941. phy_stackrestore(0x04C1);
  942. } else
  943. phy_stackrestore(0x0406);
  944. phy_stackrestore(0x04A1);
  945. phy_stackrestore(0x04AB);
  946. phy_stackrestore(0x04A8);
  947. if (phy->rev == 2) {
  948. phy_stackrestore(0x04AD);
  949. phy_stackrestore(0x04AE);
  950. } else if (phy->rev >= 3) {
  951. phy_stackrestore(0x04AD);
  952. phy_stackrestore(0x0415);
  953. phy_stackrestore(0x0416);
  954. phy_stackrestore(0x0417);
  955. ofdmtab_stackrestore(0x1A00, 0x2);
  956. ofdmtab_stackrestore(0x1A00, 0x3);
  957. }
  958. phy_stackrestore(0x04A2);
  959. phy_stackrestore(0x048A);
  960. phy_stackrestore(0x042B);
  961. phy_stackrestore(0x048C);
  962. b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW);
  963. b43_calc_nrssi_slope(dev);
  964. break;
  965. default:
  966. B43_WARN_ON(1);
  967. }
  968. }
  969. #undef phy_stacksave
  970. #undef phy_stackrestore
  971. #undef radio_stacksave
  972. #undef radio_stackrestore
  973. #undef ofdmtab_stacksave
  974. #undef ofdmtab_stackrestore
  975. static u16 b43_radio_core_calibration_value(struct b43_wldev *dev)
  976. {
  977. u16 reg, index, ret;
  978. static const u8 rcc_table[] = {
  979. 0x02, 0x03, 0x01, 0x0F,
  980. 0x06, 0x07, 0x05, 0x0F,
  981. 0x0A, 0x0B, 0x09, 0x0F,
  982. 0x0E, 0x0F, 0x0D, 0x0F,
  983. };
  984. reg = b43_radio_read16(dev, 0x60);
  985. index = (reg & 0x001E) >> 1;
  986. ret = rcc_table[index] << 1;
  987. ret |= (reg & 0x0001);
  988. ret |= 0x0020;
  989. return ret;
  990. }
  991. #define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
  992. static u16 radio2050_rfover_val(struct b43_wldev *dev,
  993. u16 phy_register, unsigned int lpd)
  994. {
  995. struct b43_phy *phy = &dev->phy;
  996. struct b43_phy_g *gphy = phy->g;
  997. struct ssb_sprom *sprom = dev->dev->bus_sprom;
  998. if (!phy->gmode)
  999. return 0;
  1000. if (has_loopback_gain(phy)) {
  1001. int max_lb_gain = gphy->max_lb_gain;
  1002. u16 extlna;
  1003. u16 i;
  1004. if (phy->radio_rev == 8)
  1005. max_lb_gain += 0x3E;
  1006. else
  1007. max_lb_gain += 0x26;
  1008. if (max_lb_gain >= 0x46) {
  1009. extlna = 0x3000;
  1010. max_lb_gain -= 0x46;
  1011. } else if (max_lb_gain >= 0x3A) {
  1012. extlna = 0x1000;
  1013. max_lb_gain -= 0x3A;
  1014. } else if (max_lb_gain >= 0x2E) {
  1015. extlna = 0x2000;
  1016. max_lb_gain -= 0x2E;
  1017. } else {
  1018. extlna = 0;
  1019. max_lb_gain -= 0x10;
  1020. }
  1021. for (i = 0; i < 16; i++) {
  1022. max_lb_gain -= (i * 6);
  1023. if (max_lb_gain < 6)
  1024. break;
  1025. }
  1026. if ((phy->rev < 7) ||
  1027. !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
  1028. if (phy_register == B43_PHY_RFOVER) {
  1029. return 0x1B3;
  1030. } else if (phy_register == B43_PHY_RFOVERVAL) {
  1031. extlna |= (i << 8);
  1032. switch (lpd) {
  1033. case LPD(0, 1, 1):
  1034. return 0x0F92;
  1035. case LPD(0, 0, 1):
  1036. case LPD(1, 0, 1):
  1037. return (0x0092 | extlna);
  1038. case LPD(1, 0, 0):
  1039. return (0x0093 | extlna);
  1040. }
  1041. B43_WARN_ON(1);
  1042. }
  1043. B43_WARN_ON(1);
  1044. } else {
  1045. if (phy_register == B43_PHY_RFOVER) {
  1046. return 0x9B3;
  1047. } else if (phy_register == B43_PHY_RFOVERVAL) {
  1048. if (extlna)
  1049. extlna |= 0x8000;
  1050. extlna |= (i << 8);
  1051. switch (lpd) {
  1052. case LPD(0, 1, 1):
  1053. return 0x8F92;
  1054. case LPD(0, 0, 1):
  1055. return (0x8092 | extlna);
  1056. case LPD(1, 0, 1):
  1057. return (0x2092 | extlna);
  1058. case LPD(1, 0, 0):
  1059. return (0x2093 | extlna);
  1060. }
  1061. B43_WARN_ON(1);
  1062. }
  1063. B43_WARN_ON(1);
  1064. }
  1065. } else {
  1066. if ((phy->rev < 7) ||
  1067. !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
  1068. if (phy_register == B43_PHY_RFOVER) {
  1069. return 0x1B3;
  1070. } else if (phy_register == B43_PHY_RFOVERVAL) {
  1071. switch (lpd) {
  1072. case LPD(0, 1, 1):
  1073. return 0x0FB2;
  1074. case LPD(0, 0, 1):
  1075. return 0x00B2;
  1076. case LPD(1, 0, 1):
  1077. return 0x30B2;
  1078. case LPD(1, 0, 0):
  1079. return 0x30B3;
  1080. }
  1081. B43_WARN_ON(1);
  1082. }
  1083. B43_WARN_ON(1);
  1084. } else {
  1085. if (phy_register == B43_PHY_RFOVER) {
  1086. return 0x9B3;
  1087. } else if (phy_register == B43_PHY_RFOVERVAL) {
  1088. switch (lpd) {
  1089. case LPD(0, 1, 1):
  1090. return 0x8FB2;
  1091. case LPD(0, 0, 1):
  1092. return 0x80B2;
  1093. case LPD(1, 0, 1):
  1094. return 0x20B2;
  1095. case LPD(1, 0, 0):
  1096. return 0x20B3;
  1097. }
  1098. B43_WARN_ON(1);
  1099. }
  1100. B43_WARN_ON(1);
  1101. }
  1102. }
  1103. return 0;
  1104. }
  1105. struct init2050_saved_values {
  1106. /* Core registers */
  1107. u16 reg_3EC;
  1108. u16 reg_3E6;
  1109. u16 reg_3F4;
  1110. /* Radio registers */
  1111. u16 radio_43;
  1112. u16 radio_51;
  1113. u16 radio_52;
  1114. /* PHY registers */
  1115. u16 phy_pgactl;
  1116. u16 phy_cck_5A;
  1117. u16 phy_cck_59;
  1118. u16 phy_cck_58;
  1119. u16 phy_cck_30;
  1120. u16 phy_rfover;
  1121. u16 phy_rfoverval;
  1122. u16 phy_analogover;
  1123. u16 phy_analogoverval;
  1124. u16 phy_crs0;
  1125. u16 phy_classctl;
  1126. u16 phy_lo_mask;
  1127. u16 phy_lo_ctl;
  1128. u16 phy_syncctl;
  1129. };
  1130. static u16 b43_radio_init2050(struct b43_wldev *dev)
  1131. {
  1132. struct b43_phy *phy = &dev->phy;
  1133. struct init2050_saved_values sav;
  1134. u16 rcc;
  1135. u16 radio78;
  1136. u16 ret;
  1137. u16 i, j;
  1138. u32 tmp1 = 0, tmp2 = 0;
  1139. memset(&sav, 0, sizeof(sav)); /* get rid of "may be used uninitialized..." */
  1140. sav.radio_43 = b43_radio_read16(dev, 0x43);
  1141. sav.radio_51 = b43_radio_read16(dev, 0x51);
  1142. sav.radio_52 = b43_radio_read16(dev, 0x52);
  1143. sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL);
  1144. sav.phy_cck_5A = b43_phy_read(dev, B43_PHY_CCK(0x5A));
  1145. sav.phy_cck_59 = b43_phy_read(dev, B43_PHY_CCK(0x59));
  1146. sav.phy_cck_58 = b43_phy_read(dev, B43_PHY_CCK(0x58));
  1147. if (phy->type == B43_PHYTYPE_B) {
  1148. sav.phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30));
  1149. sav.reg_3EC = b43_read16(dev, 0x3EC);
  1150. b43_phy_write(dev, B43_PHY_CCK(0x30), 0xFF);
  1151. b43_write16(dev, 0x3EC, 0x3F3F);
  1152. } else if (phy->gmode || phy->rev >= 2) {
  1153. sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER);
  1154. sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
  1155. sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
  1156. sav.phy_analogoverval =
  1157. b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
  1158. sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0);
  1159. sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL);
  1160. b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003);
  1161. b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC);
  1162. b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF);
  1163. b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC);
  1164. if (has_loopback_gain(phy)) {
  1165. sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK);
  1166. sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL);
  1167. if (phy->rev >= 3)
  1168. b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
  1169. else
  1170. b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
  1171. b43_phy_write(dev, B43_PHY_LO_CTL, 0);
  1172. }
  1173. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1174. radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
  1175. LPD(0, 1, 1)));
  1176. b43_phy_write(dev, B43_PHY_RFOVER,
  1177. radio2050_rfover_val(dev, B43_PHY_RFOVER, 0));
  1178. }
  1179. b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000);
  1180. sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL);
  1181. b43_phy_mask(dev, B43_PHY_SYNCCTL, 0xFF7F);
  1182. sav.reg_3E6 = b43_read16(dev, 0x3E6);
  1183. sav.reg_3F4 = b43_read16(dev, 0x3F4);
  1184. if (phy->analog == 0) {
  1185. b43_write16(dev, 0x03E6, 0x0122);
  1186. } else {
  1187. if (phy->analog >= 2) {
  1188. b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFFBF, 0x40);
  1189. }
  1190. b43_write16(dev, B43_MMIO_CHANNEL_EXT,
  1191. (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000));
  1192. }
  1193. rcc = b43_radio_core_calibration_value(dev);
  1194. if (phy->type == B43_PHYTYPE_B)
  1195. b43_radio_write16(dev, 0x78, 0x26);
  1196. if (phy->gmode || phy->rev >= 2) {
  1197. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1198. radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
  1199. LPD(0, 1, 1)));
  1200. }
  1201. b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF);
  1202. b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1403);
  1203. if (phy->gmode || phy->rev >= 2) {
  1204. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1205. radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
  1206. LPD(0, 0, 1)));
  1207. }
  1208. b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0);
  1209. b43_radio_set(dev, 0x51, 0x0004);
  1210. if (phy->radio_rev == 8) {
  1211. b43_radio_write16(dev, 0x43, 0x1F);
  1212. } else {
  1213. b43_radio_write16(dev, 0x52, 0);
  1214. b43_radio_maskset(dev, 0x43, 0xFFF0, 0x0009);
  1215. }
  1216. b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
  1217. for (i = 0; i < 16; i++) {
  1218. b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0480);
  1219. b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
  1220. b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
  1221. if (phy->gmode || phy->rev >= 2) {
  1222. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1223. radio2050_rfover_val(dev,
  1224. B43_PHY_RFOVERVAL,
  1225. LPD(1, 0, 1)));
  1226. }
  1227. b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
  1228. udelay(10);
  1229. if (phy->gmode || phy->rev >= 2) {
  1230. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1231. radio2050_rfover_val(dev,
  1232. B43_PHY_RFOVERVAL,
  1233. LPD(1, 0, 1)));
  1234. }
  1235. b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
  1236. udelay(10);
  1237. if (phy->gmode || phy->rev >= 2) {
  1238. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1239. radio2050_rfover_val(dev,
  1240. B43_PHY_RFOVERVAL,
  1241. LPD(1, 0, 0)));
  1242. }
  1243. b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
  1244. udelay(20);
  1245. tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
  1246. b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
  1247. if (phy->gmode || phy->rev >= 2) {
  1248. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1249. radio2050_rfover_val(dev,
  1250. B43_PHY_RFOVERVAL,
  1251. LPD(1, 0, 1)));
  1252. }
  1253. b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
  1254. }
  1255. udelay(10);
  1256. b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
  1257. tmp1++;
  1258. tmp1 >>= 9;
  1259. for (i = 0; i < 16; i++) {
  1260. radio78 = (bitrev4(i) << 1) | 0x0020;
  1261. b43_radio_write16(dev, 0x78, radio78);
  1262. udelay(10);
  1263. for (j = 0; j < 16; j++) {
  1264. b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0D80);
  1265. b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
  1266. b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
  1267. if (phy->gmode || phy->rev >= 2) {
  1268. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1269. radio2050_rfover_val(dev,
  1270. B43_PHY_RFOVERVAL,
  1271. LPD(1, 0,
  1272. 1)));
  1273. }
  1274. b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
  1275. udelay(10);
  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, 0xEFB0);
  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. 0)));
  1291. }
  1292. b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
  1293. udelay(10);
  1294. tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
  1295. b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
  1296. if (phy->gmode || phy->rev >= 2) {
  1297. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  1298. radio2050_rfover_val(dev,
  1299. B43_PHY_RFOVERVAL,
  1300. LPD(1, 0,
  1301. 1)));
  1302. }
  1303. b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
  1304. }
  1305. tmp2++;
  1306. tmp2 >>= 8;
  1307. if (tmp1 < tmp2)
  1308. break;
  1309. }
  1310. /* Restore the registers */
  1311. b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl);
  1312. b43_radio_write16(dev, 0x51, sav.radio_51);
  1313. b43_radio_write16(dev, 0x52, sav.radio_52);
  1314. b43_radio_write16(dev, 0x43, sav.radio_43);
  1315. b43_phy_write(dev, B43_PHY_CCK(0x5A), sav.phy_cck_5A);
  1316. b43_phy_write(dev, B43_PHY_CCK(0x59), sav.phy_cck_59);
  1317. b43_phy_write(dev, B43_PHY_CCK(0x58), sav.phy_cck_58);
  1318. b43_write16(dev, 0x3E6, sav.reg_3E6);
  1319. if (phy->analog != 0)
  1320. b43_write16(dev, 0x3F4, sav.reg_3F4);
  1321. b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl);
  1322. b43_synth_pu_workaround(dev, phy->channel);
  1323. if (phy->type == B43_PHYTYPE_B) {
  1324. b43_phy_write(dev, B43_PHY_CCK(0x30), sav.phy_cck_30);
  1325. b43_write16(dev, 0x3EC, sav.reg_3EC);
  1326. } else if (phy->gmode) {
  1327. b43_write16(dev, B43_MMIO_PHY_RADIO,
  1328. b43_read16(dev, B43_MMIO_PHY_RADIO)
  1329. & 0x7FFF);
  1330. b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover);
  1331. b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval);
  1332. b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover);
  1333. b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
  1334. sav.phy_analogoverval);
  1335. b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0);
  1336. b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl);
  1337. if (has_loopback_gain(phy)) {
  1338. b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask);
  1339. b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl);
  1340. }
  1341. }
  1342. if (i > 15)
  1343. ret = radio78;
  1344. else
  1345. ret = rcc;
  1346. return ret;
  1347. }
  1348. static void b43_phy_initb5(struct b43_wldev *dev)
  1349. {
  1350. struct b43_phy *phy = &dev->phy;
  1351. struct b43_phy_g *gphy = phy->g;
  1352. u16 offset, value;
  1353. u8 old_channel;
  1354. if (phy->analog == 1) {
  1355. b43_radio_set(dev, 0x007A, 0x0050);
  1356. }
  1357. if ((dev->dev->board_vendor != SSB_BOARDVENDOR_BCM) &&
  1358. (dev->dev->board_type != SSB_BOARD_BU4306)) {
  1359. value = 0x2120;
  1360. for (offset = 0x00A8; offset < 0x00C7; offset++) {
  1361. b43_phy_write(dev, offset, value);
  1362. value += 0x202;
  1363. }
  1364. }
  1365. b43_phy_maskset(dev, 0x0035, 0xF0FF, 0x0700);
  1366. if (phy->radio_ver == 0x2050)
  1367. b43_phy_write(dev, 0x0038, 0x0667);
  1368. if (phy->gmode || phy->rev >= 2) {
  1369. if (phy->radio_ver == 0x2050) {
  1370. b43_radio_set(dev, 0x007A, 0x0020);
  1371. b43_radio_set(dev, 0x0051, 0x0004);
  1372. }
  1373. b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000);
  1374. b43_phy_set(dev, 0x0802, 0x0100);
  1375. b43_phy_set(dev, 0x042B, 0x2000);
  1376. b43_phy_write(dev, 0x001C, 0x186A);
  1377. b43_phy_maskset(dev, 0x0013, 0x00FF, 0x1900);
  1378. b43_phy_maskset(dev, 0x0035, 0xFFC0, 0x0064);
  1379. b43_phy_maskset(dev, 0x005D, 0xFF80, 0x000A);
  1380. }
  1381. if (dev->bad_frames_preempt) {
  1382. b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, (1 << 11));
  1383. }
  1384. if (phy->analog == 1) {
  1385. b43_phy_write(dev, 0x0026, 0xCE00);
  1386. b43_phy_write(dev, 0x0021, 0x3763);
  1387. b43_phy_write(dev, 0x0022, 0x1BC3);
  1388. b43_phy_write(dev, 0x0023, 0x06F9);
  1389. b43_phy_write(dev, 0x0024, 0x037E);
  1390. } else
  1391. b43_phy_write(dev, 0x0026, 0xCC00);
  1392. b43_phy_write(dev, 0x0030, 0x00C6);
  1393. b43_write16(dev, 0x03EC, 0x3F22);
  1394. if (phy->analog == 1)
  1395. b43_phy_write(dev, 0x0020, 0x3E1C);
  1396. else
  1397. b43_phy_write(dev, 0x0020, 0x301C);
  1398. if (phy->analog == 0)
  1399. b43_write16(dev, 0x03E4, 0x3000);
  1400. old_channel = phy->channel;
  1401. /* Force to channel 7, even if not supported. */
  1402. b43_gphy_channel_switch(dev, 7, 0);
  1403. if (phy->radio_ver != 0x2050) {
  1404. b43_radio_write16(dev, 0x0075, 0x0080);
  1405. b43_radio_write16(dev, 0x0079, 0x0081);
  1406. }
  1407. b43_radio_write16(dev, 0x0050, 0x0020);
  1408. b43_radio_write16(dev, 0x0050, 0x0023);
  1409. if (phy->radio_ver == 0x2050) {
  1410. b43_radio_write16(dev, 0x0050, 0x0020);
  1411. b43_radio_write16(dev, 0x005A, 0x0070);
  1412. }
  1413. b43_radio_write16(dev, 0x005B, 0x007B);
  1414. b43_radio_write16(dev, 0x005C, 0x00B0);
  1415. b43_radio_set(dev, 0x007A, 0x0007);
  1416. b43_gphy_channel_switch(dev, old_channel, 0);
  1417. b43_phy_write(dev, 0x0014, 0x0080);
  1418. b43_phy_write(dev, 0x0032, 0x00CA);
  1419. b43_phy_write(dev, 0x002A, 0x88A3);
  1420. b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
  1421. if (phy->radio_ver == 0x2050)
  1422. b43_radio_write16(dev, 0x005D, 0x000D);
  1423. b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004);
  1424. }
  1425. /* https://bcm-v4.sipsolutions.net/802.11/PHY/Init/B6 */
  1426. static void b43_phy_initb6(struct b43_wldev *dev)
  1427. {
  1428. struct b43_phy *phy = &dev->phy;
  1429. struct b43_phy_g *gphy = phy->g;
  1430. u16 offset, val;
  1431. u8 old_channel;
  1432. b43_phy_write(dev, 0x003E, 0x817A);
  1433. b43_radio_write16(dev, 0x007A,
  1434. (b43_radio_read16(dev, 0x007A) | 0x0058));
  1435. if (phy->radio_rev == 4 || phy->radio_rev == 5) {
  1436. b43_radio_write16(dev, 0x51, 0x37);
  1437. b43_radio_write16(dev, 0x52, 0x70);
  1438. b43_radio_write16(dev, 0x53, 0xB3);
  1439. b43_radio_write16(dev, 0x54, 0x9B);
  1440. b43_radio_write16(dev, 0x5A, 0x88);
  1441. b43_radio_write16(dev, 0x5B, 0x88);
  1442. b43_radio_write16(dev, 0x5D, 0x88);
  1443. b43_radio_write16(dev, 0x5E, 0x88);
  1444. b43_radio_write16(dev, 0x7D, 0x88);
  1445. b43_hf_write(dev, b43_hf_read(dev)
  1446. | B43_HF_TSSIRPSMW);
  1447. }
  1448. B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7); /* We had code for these revs here... */
  1449. if (phy->radio_rev == 8) {
  1450. b43_radio_write16(dev, 0x51, 0);
  1451. b43_radio_write16(dev, 0x52, 0x40);
  1452. b43_radio_write16(dev, 0x53, 0xB7);
  1453. b43_radio_write16(dev, 0x54, 0x98);
  1454. b43_radio_write16(dev, 0x5A, 0x88);
  1455. b43_radio_write16(dev, 0x5B, 0x6B);
  1456. b43_radio_write16(dev, 0x5C, 0x0F);
  1457. if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_ALTIQ) {
  1458. b43_radio_write16(dev, 0x5D, 0xFA);
  1459. b43_radio_write16(dev, 0x5E, 0xD8);
  1460. } else {
  1461. b43_radio_write16(dev, 0x5D, 0xF5);
  1462. b43_radio_write16(dev, 0x5E, 0xB8);
  1463. }
  1464. b43_radio_write16(dev, 0x0073, 0x0003);
  1465. b43_radio_write16(dev, 0x007D, 0x00A8);
  1466. b43_radio_write16(dev, 0x007C, 0x0001);
  1467. b43_radio_write16(dev, 0x007E, 0x0008);
  1468. }
  1469. val = 0x1E1F;
  1470. for (offset = 0x0088; offset < 0x0098; offset++) {
  1471. b43_phy_write(dev, offset, val);
  1472. val -= 0x0202;
  1473. }
  1474. val = 0x3E3F;
  1475. for (offset = 0x0098; offset < 0x00A8; offset++) {
  1476. b43_phy_write(dev, offset, val);
  1477. val -= 0x0202;
  1478. }
  1479. val = 0x2120;
  1480. for (offset = 0x00A8; offset < 0x00C8; offset++) {
  1481. b43_phy_write(dev, offset, (val & 0x3F3F));
  1482. val += 0x0202;
  1483. }
  1484. if (phy->type == B43_PHYTYPE_G) {
  1485. b43_radio_set(dev, 0x007A, 0x0020);
  1486. b43_radio_set(dev, 0x0051, 0x0004);
  1487. b43_phy_set(dev, 0x0802, 0x0100);
  1488. b43_phy_set(dev, 0x042B, 0x2000);
  1489. b43_phy_write(dev, 0x5B, 0);
  1490. b43_phy_write(dev, 0x5C, 0);
  1491. }
  1492. old_channel = phy->channel;
  1493. if (old_channel >= 8)
  1494. b43_gphy_channel_switch(dev, 1, 0);
  1495. else
  1496. b43_gphy_channel_switch(dev, 13, 0);
  1497. b43_radio_write16(dev, 0x0050, 0x0020);
  1498. b43_radio_write16(dev, 0x0050, 0x0023);
  1499. udelay(40);
  1500. if (phy->radio_rev < 6 || phy->radio_rev == 8) {
  1501. b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C)
  1502. | 0x0002));
  1503. b43_radio_write16(dev, 0x50, 0x20);
  1504. }
  1505. if (phy->radio_rev <= 2) {
  1506. b43_radio_write16(dev, 0x50, 0x20);
  1507. b43_radio_write16(dev, 0x5A, 0x70);
  1508. b43_radio_write16(dev, 0x5B, 0x7B);
  1509. b43_radio_write16(dev, 0x5C, 0xB0);
  1510. }
  1511. b43_radio_maskset(dev, 0x007A, 0x00F8, 0x0007);
  1512. b43_gphy_channel_switch(dev, old_channel, 0);
  1513. b43_phy_write(dev, 0x0014, 0x0200);
  1514. if (phy->radio_rev >= 6)
  1515. b43_phy_write(dev, 0x2A, 0x88C2);
  1516. else
  1517. b43_phy_write(dev, 0x2A, 0x8AC0);
  1518. b43_phy_write(dev, 0x0038, 0x0668);
  1519. b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
  1520. if (phy->radio_rev == 4 || phy->radio_rev == 5)
  1521. b43_phy_maskset(dev, 0x5D, 0xFF80, 0x0003);
  1522. if (phy->radio_rev <= 2)
  1523. b43_radio_write16(dev, 0x005D, 0x000D);
  1524. if (phy->analog == 4) {
  1525. b43_write16(dev, 0x3E4, 9);
  1526. b43_phy_mask(dev, 0x61, 0x0FFF);
  1527. } else {
  1528. b43_phy_maskset(dev, 0x0002, 0xFFC0, 0x0004);
  1529. }
  1530. if (phy->type == B43_PHYTYPE_B)
  1531. B43_WARN_ON(1);
  1532. else if (phy->type == B43_PHYTYPE_G)
  1533. b43_write16(dev, 0x03E6, 0x0);
  1534. }
  1535. static void b43_calc_loopback_gain(struct b43_wldev *dev)
  1536. {
  1537. struct b43_phy *phy = &dev->phy;
  1538. struct b43_phy_g *gphy = phy->g;
  1539. u16 backup_phy[16] = { 0 };
  1540. u16 backup_radio[3];
  1541. u16 backup_bband;
  1542. u16 i, j, loop_i_max;
  1543. u16 trsw_rx;
  1544. u16 loop1_outer_done, loop1_inner_done;
  1545. backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0);
  1546. backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG);
  1547. backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER);
  1548. backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL);
  1549. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  1550. backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER);
  1551. backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
  1552. }
  1553. backup_phy[6] = b43_phy_read(dev, B43_PHY_CCK(0x5A));
  1554. backup_phy[7] = b43_phy_read(dev, B43_PHY_CCK(0x59));
  1555. backup_phy[8] = b43_phy_read(dev, B43_PHY_CCK(0x58));
  1556. backup_phy[9] = b43_phy_read(dev, B43_PHY_CCK(0x0A));
  1557. backup_phy[10] = b43_phy_read(dev, B43_PHY_CCK(0x03));
  1558. backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK);
  1559. backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL);
  1560. backup_phy[13] = b43_phy_read(dev, B43_PHY_CCK(0x2B));
  1561. backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL);
  1562. backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
  1563. backup_bband = gphy->bbatt.att;
  1564. backup_radio[0] = b43_radio_read16(dev, 0x52);
  1565. backup_radio[1] = b43_radio_read16(dev, 0x43);
  1566. backup_radio[2] = b43_radio_read16(dev, 0x7A);
  1567. b43_phy_mask(dev, B43_PHY_CRS0, 0x3FFF);
  1568. b43_phy_set(dev, B43_PHY_CCKBBANDCFG, 0x8000);
  1569. b43_phy_set(dev, B43_PHY_RFOVER, 0x0002);
  1570. b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFD);
  1571. b43_phy_set(dev, B43_PHY_RFOVER, 0x0001);
  1572. b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFE);
  1573. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  1574. b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0001);
  1575. b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFE);
  1576. b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0002);
  1577. b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFD);
  1578. }
  1579. b43_phy_set(dev, B43_PHY_RFOVER, 0x000C);
  1580. b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x000C);
  1581. b43_phy_set(dev, B43_PHY_RFOVER, 0x0030);
  1582. b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xFFCF, 0x10);
  1583. b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0780);
  1584. b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
  1585. b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
  1586. b43_phy_set(dev, B43_PHY_CCK(0x0A), 0x2000);
  1587. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  1588. b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0004);
  1589. b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFB);
  1590. }
  1591. b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFF9F, 0x40);
  1592. if (phy->radio_rev == 8) {
  1593. b43_radio_write16(dev, 0x43, 0x000F);
  1594. } else {
  1595. b43_radio_write16(dev, 0x52, 0);
  1596. b43_radio_maskset(dev, 0x43, 0xFFF0, 0x9);
  1597. }
  1598. b43_gphy_set_baseband_attenuation(dev, 11);
  1599. if (phy->rev >= 3)
  1600. b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
  1601. else
  1602. b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
  1603. b43_phy_write(dev, B43_PHY_LO_CTL, 0);
  1604. b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xFFC0, 0x01);
  1605. b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xC0FF, 0x800);
  1606. b43_phy_set(dev, B43_PHY_RFOVER, 0x0100);
  1607. b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xCFFF);
  1608. if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_EXTLNA) {
  1609. if (phy->rev >= 7) {
  1610. b43_phy_set(dev, B43_PHY_RFOVER, 0x0800);
  1611. b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x8000);
  1612. }
  1613. }
  1614. b43_radio_mask(dev, 0x7A, 0x00F7);
  1615. j = 0;
  1616. loop_i_max = (phy->radio_rev == 8) ? 15 : 9;
  1617. for (i = 0; i < loop_i_max; i++) {
  1618. for (j = 0; j < 16; j++) {
  1619. b43_radio_write16(dev, 0x43, i);
  1620. b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
  1621. b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
  1622. b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
  1623. udelay(20);
  1624. if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
  1625. goto exit_loop1;
  1626. }
  1627. }
  1628. exit_loop1:
  1629. loop1_outer_done = i;
  1630. loop1_inner_done = j;
  1631. if (j >= 8) {
  1632. b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x30);
  1633. trsw_rx = 0x1B;
  1634. for (j = j - 8; j < 16; j++) {
  1635. b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
  1636. b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
  1637. b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
  1638. udelay(20);
  1639. trsw_rx -= 3;
  1640. if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
  1641. goto exit_loop2;
  1642. }
  1643. } else
  1644. trsw_rx = 0x18;
  1645. exit_loop2:
  1646. if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
  1647. b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]);
  1648. b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]);
  1649. }
  1650. b43_phy_write(dev, B43_PHY_CCK(0x5A), backup_phy[6]);
  1651. b43_phy_write(dev, B43_PHY_CCK(0x59), backup_phy[7]);
  1652. b43_phy_write(dev, B43_PHY_CCK(0x58), backup_phy[8]);
  1653. b43_phy_write(dev, B43_PHY_CCK(0x0A), backup_phy[9]);
  1654. b43_phy_write(dev, B43_PHY_CCK(0x03), backup_phy[10]);
  1655. b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]);
  1656. b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]);
  1657. b43_phy_write(dev, B43_PHY_CCK(0x2B), backup_phy[13]);
  1658. b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]);
  1659. b43_gphy_set_baseband_attenuation(dev, backup_bband);
  1660. b43_radio_write16(dev, 0x52, backup_radio[0]);
  1661. b43_radio_write16(dev, 0x43, backup_radio[1]);
  1662. b43_radio_write16(dev, 0x7A, backup_radio[2]);
  1663. b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003);
  1664. udelay(10);
  1665. b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]);
  1666. b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]);
  1667. b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]);
  1668. b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]);
  1669. gphy->max_lb_gain =
  1670. ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11;
  1671. gphy->trsw_rx_gain = trsw_rx * 2;
  1672. }
  1673. static void b43_hardware_pctl_early_init(struct b43_wldev *dev)
  1674. {
  1675. struct b43_phy *phy = &dev->phy;
  1676. if (!b43_has_hardware_pctl(dev)) {
  1677. b43_phy_write(dev, 0x047A, 0xC111);
  1678. return;
  1679. }
  1680. b43_phy_mask(dev, 0x0036, 0xFEFF);
  1681. b43_phy_write(dev, 0x002F, 0x0202);
  1682. b43_phy_set(dev, 0x047C, 0x0002);
  1683. b43_phy_set(dev, 0x047A, 0xF000);
  1684. if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
  1685. b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
  1686. b43_phy_set(dev, 0x005D, 0x8000);
  1687. b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
  1688. b43_phy_write(dev, 0x002E, 0xC07F);
  1689. b43_phy_set(dev, 0x0036, 0x0400);
  1690. } else {
  1691. b43_phy_set(dev, 0x0036, 0x0200);
  1692. b43_phy_set(dev, 0x0036, 0x0400);
  1693. b43_phy_mask(dev, 0x005D, 0x7FFF);
  1694. b43_phy_mask(dev, 0x004F, 0xFFFE);
  1695. b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
  1696. b43_phy_write(dev, 0x002E, 0xC07F);
  1697. b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
  1698. }
  1699. }
  1700. /* Hardware power control for G-PHY */
  1701. static void b43_hardware_pctl_init_gphy(struct b43_wldev *dev)
  1702. {
  1703. struct b43_phy *phy = &dev->phy;
  1704. struct b43_phy_g *gphy = phy->g;
  1705. if (!b43_has_hardware_pctl(dev)) {
  1706. /* No hardware power control */
  1707. b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL);
  1708. return;
  1709. }
  1710. b43_phy_maskset(dev, 0x0036, 0xFFC0, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
  1711. b43_phy_maskset(dev, 0x0478, 0xFF00, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
  1712. b43_gphy_tssi_power_lt_init(dev);
  1713. b43_gphy_gain_lt_init(dev);
  1714. b43_phy_mask(dev, 0x0060, 0xFFBF);
  1715. b43_phy_write(dev, 0x0014, 0x0000);
  1716. B43_WARN_ON(phy->rev < 6);
  1717. b43_phy_set(dev, 0x0478, 0x0800);
  1718. b43_phy_mask(dev, 0x0478, 0xFEFF);
  1719. b43_phy_mask(dev, 0x0801, 0xFFBF);
  1720. b43_gphy_dc_lt_init(dev, 1);
  1721. /* Enable hardware pctl in firmware. */
  1722. b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL);
  1723. }
  1724. /* Initialize B/G PHY power control */
  1725. static void b43_phy_init_pctl(struct b43_wldev *dev)
  1726. {
  1727. struct b43_phy *phy = &dev->phy;
  1728. struct b43_phy_g *gphy = phy->g;
  1729. struct b43_rfatt old_rfatt;
  1730. struct b43_bbatt old_bbatt;
  1731. u8 old_tx_control = 0;
  1732. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  1733. if ((dev->dev->board_vendor == SSB_BOARDVENDOR_BCM) &&
  1734. (dev->dev->board_type == SSB_BOARD_BU4306))
  1735. return;
  1736. b43_phy_write(dev, 0x0028, 0x8018);
  1737. /* This does something with the Analog... */
  1738. b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0)
  1739. & 0xFFDF);
  1740. if (!phy->gmode)
  1741. return;
  1742. b43_hardware_pctl_early_init(dev);
  1743. if (gphy->cur_idle_tssi == 0) {
  1744. if (phy->radio_ver == 0x2050 && phy->analog == 0) {
  1745. b43_radio_maskset(dev, 0x0076, 0x00F7, 0x0084);
  1746. } else {
  1747. struct b43_rfatt rfatt;
  1748. struct b43_bbatt bbatt;
  1749. memcpy(&old_rfatt, &gphy->rfatt, sizeof(old_rfatt));
  1750. memcpy(&old_bbatt, &gphy->bbatt, sizeof(old_bbatt));
  1751. old_tx_control = gphy->tx_control;
  1752. bbatt.att = 11;
  1753. if (phy->radio_rev == 8) {
  1754. rfatt.att = 15;
  1755. rfatt.with_padmix = true;
  1756. } else {
  1757. rfatt.att = 9;
  1758. rfatt.with_padmix = false;
  1759. }
  1760. b43_set_txpower_g(dev, &bbatt, &rfatt, 0);
  1761. }
  1762. b43_dummy_transmission(dev, false, true);
  1763. gphy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI);
  1764. if (B43_DEBUG) {
  1765. /* Current-Idle-TSSI sanity check. */
  1766. if (abs(gphy->cur_idle_tssi - gphy->tgt_idle_tssi) >= 20) {
  1767. b43dbg(dev->wl,
  1768. "!WARNING! Idle-TSSI phy->cur_idle_tssi "
  1769. "measuring failed. (cur=%d, tgt=%d). Disabling TX power "
  1770. "adjustment.\n", gphy->cur_idle_tssi,
  1771. gphy->tgt_idle_tssi);
  1772. gphy->cur_idle_tssi = 0;
  1773. }
  1774. }
  1775. if (phy->radio_ver == 0x2050 && phy->analog == 0) {
  1776. b43_radio_mask(dev, 0x0076, 0xFF7B);
  1777. } else {
  1778. b43_set_txpower_g(dev, &old_bbatt,
  1779. &old_rfatt, old_tx_control);
  1780. }
  1781. }
  1782. b43_hardware_pctl_init_gphy(dev);
  1783. b43_shm_clear_tssi(dev);
  1784. }
  1785. static void b43_phy_inita(struct b43_wldev *dev)
  1786. {
  1787. struct b43_phy *phy = &dev->phy;
  1788. might_sleep();
  1789. if (phy->rev >= 6) {
  1790. if (b43_phy_read(dev, B43_PHY_ENCORE) & B43_PHY_ENCORE_EN)
  1791. b43_phy_set(dev, B43_PHY_ENCORE, 0x0010);
  1792. else
  1793. b43_phy_mask(dev, B43_PHY_ENCORE, ~0x1010);
  1794. }
  1795. b43_wa_all(dev);
  1796. if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
  1797. b43_phy_maskset(dev, B43_PHY_OFDM(0x6E), 0xE000, 0x3CF);
  1798. }
  1799. static void b43_phy_initg(struct b43_wldev *dev)
  1800. {
  1801. struct b43_phy *phy = &dev->phy;
  1802. struct b43_phy_g *gphy = phy->g;
  1803. u16 tmp;
  1804. if (phy->rev == 1)
  1805. b43_phy_initb5(dev);
  1806. else
  1807. b43_phy_initb6(dev);
  1808. if (phy->rev >= 2 || phy->gmode)
  1809. b43_phy_inita(dev);
  1810. if (phy->rev >= 2) {
  1811. b43_phy_write(dev, B43_PHY_ANALOGOVER, 0);
  1812. b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0);
  1813. }
  1814. if (phy->rev == 2) {
  1815. b43_phy_write(dev, B43_PHY_RFOVER, 0);
  1816. b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
  1817. }
  1818. if (phy->rev > 5) {
  1819. b43_phy_write(dev, B43_PHY_RFOVER, 0x400);
  1820. b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
  1821. }
  1822. if (phy->gmode || phy->rev >= 2) {
  1823. tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM);
  1824. tmp &= B43_PHYVER_VERSION;
  1825. if (tmp == 3 || tmp == 5) {
  1826. b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816);
  1827. b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006);
  1828. }
  1829. if (tmp == 5) {
  1830. b43_phy_maskset(dev, B43_PHY_OFDM(0xCC), 0x00FF, 0x1F00);
  1831. }
  1832. }
  1833. if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2)
  1834. b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78);
  1835. if (phy->radio_rev == 8) {
  1836. b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x80);
  1837. b43_phy_set(dev, B43_PHY_OFDM(0x3E), 0x4);
  1838. }
  1839. if (has_loopback_gain(phy))
  1840. b43_calc_loopback_gain(dev);
  1841. if (phy->radio_rev != 8) {
  1842. if (gphy->initval == 0xFFFF)
  1843. gphy->initval = b43_radio_init2050(dev);
  1844. else
  1845. b43_radio_write16(dev, 0x0078, gphy->initval);
  1846. }
  1847. b43_lo_g_init(dev);
  1848. if (has_tx_magnification(phy)) {
  1849. b43_radio_write16(dev, 0x52,
  1850. (b43_radio_read16(dev, 0x52) & 0xFF00)
  1851. | gphy->lo_control->tx_bias | gphy->
  1852. lo_control->tx_magn);
  1853. } else {
  1854. b43_radio_maskset(dev, 0x52, 0xFFF0, gphy->lo_control->tx_bias);
  1855. }
  1856. if (phy->rev >= 6) {
  1857. b43_phy_maskset(dev, B43_PHY_CCK(0x36), 0x0FFF, (gphy->lo_control->tx_bias << 12));
  1858. }
  1859. if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
  1860. b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8075);
  1861. else
  1862. b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x807F);
  1863. if (phy->rev < 2)
  1864. b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x101);
  1865. else
  1866. b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x202);
  1867. if (phy->gmode || phy->rev >= 2) {
  1868. b43_lo_g_adjust(dev);
  1869. b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078);
  1870. }
  1871. if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
  1872. /* The specs state to update the NRSSI LT with
  1873. * the value 0x7FFFFFFF here. I think that is some weird
  1874. * compiler optimization in the original driver.
  1875. * Essentially, what we do here is resetting all NRSSI LT
  1876. * entries to -32 (see the clamp_val() in nrssi_hw_update())
  1877. */
  1878. b43_nrssi_hw_update(dev, 0xFFFF); //FIXME?
  1879. b43_calc_nrssi_threshold(dev);
  1880. } else if (phy->gmode || phy->rev >= 2) {
  1881. if (gphy->nrssi[0] == -1000) {
  1882. B43_WARN_ON(gphy->nrssi[1] != -1000);
  1883. b43_calc_nrssi_slope(dev);
  1884. } else
  1885. b43_calc_nrssi_threshold(dev);
  1886. }
  1887. if (phy->radio_rev == 8)
  1888. b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230);
  1889. b43_phy_init_pctl(dev);
  1890. /* FIXME: The spec says in the following if, the 0 should be replaced
  1891. 'if OFDM may not be used in the current locale'
  1892. but OFDM is legal everywhere */
  1893. if ((dev->dev->chip_id == 0x4306
  1894. && dev->dev->chip_pkg == 2) || 0) {
  1895. b43_phy_mask(dev, B43_PHY_CRS0, 0xBFFF);
  1896. b43_phy_mask(dev, B43_PHY_OFDM(0xC3), 0x7FFF);
  1897. }
  1898. }
  1899. void b43_gphy_channel_switch(struct b43_wldev *dev,
  1900. unsigned int channel,
  1901. bool synthetic_pu_workaround)
  1902. {
  1903. if (synthetic_pu_workaround)
  1904. b43_synth_pu_workaround(dev, channel);
  1905. b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
  1906. if (channel == 14) {
  1907. if (dev->dev->bus_sprom->country_code ==
  1908. SSB_SPROM1CCODE_JAPAN)
  1909. b43_hf_write(dev,
  1910. b43_hf_read(dev) & ~B43_HF_ACPR);
  1911. else
  1912. b43_hf_write(dev,
  1913. b43_hf_read(dev) | B43_HF_ACPR);
  1914. b43_write16(dev, B43_MMIO_CHANNEL_EXT,
  1915. b43_read16(dev, B43_MMIO_CHANNEL_EXT)
  1916. | (1 << 11));
  1917. } else {
  1918. b43_write16(dev, B43_MMIO_CHANNEL_EXT,
  1919. b43_read16(dev, B43_MMIO_CHANNEL_EXT)
  1920. & 0xF7BF);
  1921. }
  1922. }
  1923. static void default_baseband_attenuation(struct b43_wldev *dev,
  1924. struct b43_bbatt *bb)
  1925. {
  1926. struct b43_phy *phy = &dev->phy;
  1927. if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
  1928. bb->att = 0;
  1929. else
  1930. bb->att = 2;
  1931. }
  1932. static void default_radio_attenuation(struct b43_wldev *dev,
  1933. struct b43_rfatt *rf)
  1934. {
  1935. struct b43_bus_dev *bdev = dev->dev;
  1936. struct b43_phy *phy = &dev->phy;
  1937. rf->with_padmix = false;
  1938. if (dev->dev->board_vendor == SSB_BOARDVENDOR_BCM &&
  1939. dev->dev->board_type == SSB_BOARD_BCM4309G) {
  1940. if (dev->dev->board_rev < 0x43) {
  1941. rf->att = 2;
  1942. return;
  1943. } else if (dev->dev->board_rev < 0x51) {
  1944. rf->att = 3;
  1945. return;
  1946. }
  1947. }
  1948. switch (phy->radio_ver) {
  1949. case 0x2053:
  1950. switch (phy->radio_rev) {
  1951. case 1:
  1952. rf->att = 6;
  1953. return;
  1954. }
  1955. break;
  1956. case 0x2050:
  1957. switch (phy->radio_rev) {
  1958. case 0:
  1959. rf->att = 5;
  1960. return;
  1961. case 1:
  1962. if (phy->type == B43_PHYTYPE_G) {
  1963. if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
  1964. && bdev->board_type == SSB_BOARD_BCM4309G
  1965. && bdev->board_rev >= 30)
  1966. rf->att = 3;
  1967. else if (bdev->board_vendor ==
  1968. SSB_BOARDVENDOR_BCM
  1969. && bdev->board_type ==
  1970. SSB_BOARD_BU4306)
  1971. rf->att = 3;
  1972. else
  1973. rf->att = 1;
  1974. } else {
  1975. if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
  1976. && bdev->board_type == SSB_BOARD_BCM4309G
  1977. && bdev->board_rev >= 30)
  1978. rf->att = 7;
  1979. else
  1980. rf->att = 6;
  1981. }
  1982. return;
  1983. case 2:
  1984. if (phy->type == B43_PHYTYPE_G) {
  1985. if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
  1986. && bdev->board_type == SSB_BOARD_BCM4309G
  1987. && bdev->board_rev >= 30)
  1988. rf->att = 3;
  1989. else if (bdev->board_vendor ==
  1990. SSB_BOARDVENDOR_BCM
  1991. && bdev->board_type ==
  1992. SSB_BOARD_BU4306)
  1993. rf->att = 5;
  1994. else if (bdev->chip_id == 0x4320)
  1995. rf->att = 4;
  1996. else
  1997. rf->att = 3;
  1998. } else
  1999. rf->att = 6;
  2000. return;
  2001. case 3:
  2002. rf->att = 5;
  2003. return;
  2004. case 4:
  2005. case 5:
  2006. rf->att = 1;
  2007. return;
  2008. case 6:
  2009. case 7:
  2010. rf->att = 5;
  2011. return;
  2012. case 8:
  2013. rf->att = 0xA;
  2014. rf->with_padmix = true;
  2015. return;
  2016. case 9:
  2017. default:
  2018. rf->att = 5;
  2019. return;
  2020. }
  2021. }
  2022. rf->att = 5;
  2023. }
  2024. static u16 default_tx_control(struct b43_wldev *dev)
  2025. {
  2026. struct b43_phy *phy = &dev->phy;
  2027. if (phy->radio_ver != 0x2050)
  2028. return 0;
  2029. if (phy->radio_rev == 1)
  2030. return B43_TXCTL_PA2DB | B43_TXCTL_TXMIX;
  2031. if (phy->radio_rev < 6)
  2032. return B43_TXCTL_PA2DB;
  2033. if (phy->radio_rev == 8)
  2034. return B43_TXCTL_TXMIX;
  2035. return 0;
  2036. }
  2037. static u8 b43_gphy_aci_detect(struct b43_wldev *dev, u8 channel)
  2038. {
  2039. struct b43_phy *phy = &dev->phy;
  2040. struct b43_phy_g *gphy = phy->g;
  2041. u8 ret = 0;
  2042. u16 saved, rssi, temp;
  2043. int i, j = 0;
  2044. saved = b43_phy_read(dev, 0x0403);
  2045. b43_switch_channel(dev, channel);
  2046. b43_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
  2047. if (gphy->aci_hw_rssi)
  2048. rssi = b43_phy_read(dev, 0x048A) & 0x3F;
  2049. else
  2050. rssi = saved & 0x3F;
  2051. /* clamp temp to signed 5bit */
  2052. if (rssi > 32)
  2053. rssi -= 64;
  2054. for (i = 0; i < 100; i++) {
  2055. temp = (b43_phy_read(dev, 0x047F) >> 8) & 0x3F;
  2056. if (temp > 32)
  2057. temp -= 64;
  2058. if (temp < rssi)
  2059. j++;
  2060. if (j >= 20)
  2061. ret = 1;
  2062. }
  2063. b43_phy_write(dev, 0x0403, saved);
  2064. return ret;
  2065. }
  2066. static u8 b43_gphy_aci_scan(struct b43_wldev *dev)
  2067. {
  2068. struct b43_phy *phy = &dev->phy;
  2069. u8 ret[13] = { 0 };
  2070. unsigned int channel = phy->channel;
  2071. unsigned int i, j, start, end;
  2072. if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0)))
  2073. return 0;
  2074. b43_phy_lock(dev);
  2075. b43_radio_lock(dev);
  2076. b43_phy_mask(dev, 0x0802, 0xFFFC);
  2077. b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
  2078. b43_set_all_gains(dev, 3, 8, 1);
  2079. start = (channel > 5) ? channel - 5 : 1;
  2080. end = (channel + 5 < 14) ? channel + 5 : 13;
  2081. for (i = start; i <= end; i++) {
  2082. if (abs(channel - i) > 2)
  2083. ret[i - 1] = b43_gphy_aci_detect(dev, i);
  2084. }
  2085. b43_switch_channel(dev, channel);
  2086. b43_phy_maskset(dev, 0x0802, 0xFFFC, 0x0003);
  2087. b43_phy_mask(dev, 0x0403, 0xFFF8);
  2088. b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
  2089. b43_set_original_gains(dev);
  2090. for (i = 0; i < 13; i++) {
  2091. if (!ret[i])
  2092. continue;
  2093. end = (i + 5 < 13) ? i + 5 : 13;
  2094. for (j = i; j < end; j++)
  2095. ret[j] = 1;
  2096. }
  2097. b43_radio_unlock(dev);
  2098. b43_phy_unlock(dev);
  2099. return ret[channel - 1];
  2100. }
  2101. static s32 b43_tssi2dbm_ad(s32 num, s32 den)
  2102. {
  2103. if (num < 0)
  2104. return num / den;
  2105. else
  2106. return (num + den / 2) / den;
  2107. }
  2108. static s8 b43_tssi2dbm_entry(s8 entry[], u8 index,
  2109. s16 pab0, s16 pab1, s16 pab2)
  2110. {
  2111. s32 m1, m2, f = 256, q, delta;
  2112. s8 i = 0;
  2113. m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
  2114. m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1);
  2115. do {
  2116. if (i > 15)
  2117. return -EINVAL;
  2118. q = b43_tssi2dbm_ad(f * 4096 -
  2119. b43_tssi2dbm_ad(m2 * f, 16) * f, 2048);
  2120. delta = abs(q - f);
  2121. f = q;
  2122. i++;
  2123. } while (delta >= 2);
  2124. entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
  2125. return 0;
  2126. }
  2127. u8 *b43_generate_dyn_tssi2dbm_tab(struct b43_wldev *dev,
  2128. s16 pab0, s16 pab1, s16 pab2)
  2129. {
  2130. unsigned int i;
  2131. u8 *tab;
  2132. int err;
  2133. tab = kmalloc(64, GFP_KERNEL);
  2134. if (!tab) {
  2135. b43err(dev->wl, "Could not allocate memory "
  2136. "for tssi2dbm table\n");
  2137. return NULL;
  2138. }
  2139. for (i = 0; i < 64; i++) {
  2140. err = b43_tssi2dbm_entry(tab, i, pab0, pab1, pab2);
  2141. if (err) {
  2142. b43err(dev->wl, "Could not generate "
  2143. "tssi2dBm table\n");
  2144. kfree(tab);
  2145. return NULL;
  2146. }
  2147. }
  2148. return tab;
  2149. }
  2150. /* Initialise the TSSI->dBm lookup table */
  2151. static int b43_gphy_init_tssi2dbm_table(struct b43_wldev *dev)
  2152. {
  2153. struct b43_phy *phy = &dev->phy;
  2154. struct b43_phy_g *gphy = phy->g;
  2155. s16 pab0, pab1, pab2;
  2156. pab0 = (s16) (dev->dev->bus_sprom->pa0b0);
  2157. pab1 = (s16) (dev->dev->bus_sprom->pa0b1);
  2158. pab2 = (s16) (dev->dev->bus_sprom->pa0b2);
  2159. B43_WARN_ON((dev->dev->chip_id == 0x4301) &&
  2160. (phy->radio_ver != 0x2050)); /* Not supported anymore */
  2161. gphy->dyn_tssi_tbl = false;
  2162. if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
  2163. pab0 != -1 && pab1 != -1 && pab2 != -1) {
  2164. /* The pabX values are set in SPROM. Use them. */
  2165. if ((s8) dev->dev->bus_sprom->itssi_bg != 0 &&
  2166. (s8) dev->dev->bus_sprom->itssi_bg != -1) {
  2167. gphy->tgt_idle_tssi =
  2168. (s8) (dev->dev->bus_sprom->itssi_bg);
  2169. } else
  2170. gphy->tgt_idle_tssi = 62;
  2171. gphy->tssi2dbm = b43_generate_dyn_tssi2dbm_tab(dev, pab0,
  2172. pab1, pab2);
  2173. if (!gphy->tssi2dbm)
  2174. return -ENOMEM;
  2175. gphy->dyn_tssi_tbl = true;
  2176. } else {
  2177. /* pabX values not set in SPROM. */
  2178. gphy->tgt_idle_tssi = 52;
  2179. gphy->tssi2dbm = b43_tssi2dbm_g_table;
  2180. }
  2181. return 0;
  2182. }
  2183. static int b43_gphy_op_allocate(struct b43_wldev *dev)
  2184. {
  2185. struct b43_phy_g *gphy;
  2186. struct b43_txpower_lo_control *lo;
  2187. int err;
  2188. gphy = kzalloc(sizeof(*gphy), GFP_KERNEL);
  2189. if (!gphy) {
  2190. err = -ENOMEM;
  2191. goto error;
  2192. }
  2193. dev->phy.g = gphy;
  2194. lo = kzalloc(sizeof(*lo), GFP_KERNEL);
  2195. if (!lo) {
  2196. err = -ENOMEM;
  2197. goto err_free_gphy;
  2198. }
  2199. gphy->lo_control = lo;
  2200. err = b43_gphy_init_tssi2dbm_table(dev);
  2201. if (err)
  2202. goto err_free_lo;
  2203. return 0;
  2204. err_free_lo:
  2205. kfree(lo);
  2206. err_free_gphy:
  2207. kfree(gphy);
  2208. error:
  2209. return err;
  2210. }
  2211. static void b43_gphy_op_prepare_structs(struct b43_wldev *dev)
  2212. {
  2213. struct b43_phy *phy = &dev->phy;
  2214. struct b43_phy_g *gphy = phy->g;
  2215. const void *tssi2dbm;
  2216. int tgt_idle_tssi;
  2217. struct b43_txpower_lo_control *lo;
  2218. unsigned int i;
  2219. /* tssi2dbm table is constant, so it is initialized at alloc time.
  2220. * Save a copy of the pointer. */
  2221. tssi2dbm = gphy->tssi2dbm;
  2222. tgt_idle_tssi = gphy->tgt_idle_tssi;
  2223. /* Save the LO pointer. */
  2224. lo = gphy->lo_control;
  2225. /* Zero out the whole PHY structure. */
  2226. memset(gphy, 0, sizeof(*gphy));
  2227. /* Restore pointers. */
  2228. gphy->tssi2dbm = tssi2dbm;
  2229. gphy->tgt_idle_tssi = tgt_idle_tssi;
  2230. gphy->lo_control = lo;
  2231. memset(gphy->minlowsig, 0xFF, sizeof(gphy->minlowsig));
  2232. /* NRSSI */
  2233. for (i = 0; i < ARRAY_SIZE(gphy->nrssi); i++)
  2234. gphy->nrssi[i] = -1000;
  2235. for (i = 0; i < ARRAY_SIZE(gphy->nrssi_lt); i++)
  2236. gphy->nrssi_lt[i] = i;
  2237. gphy->lofcal = 0xFFFF;
  2238. gphy->initval = 0xFFFF;
  2239. gphy->interfmode = B43_INTERFMODE_NONE;
  2240. /* OFDM-table address caching. */
  2241. gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
  2242. gphy->average_tssi = 0xFF;
  2243. /* Local Osciallator structure */
  2244. lo->tx_bias = 0xFF;
  2245. INIT_LIST_HEAD(&lo->calib_list);
  2246. }
  2247. static void b43_gphy_op_free(struct b43_wldev *dev)
  2248. {
  2249. struct b43_phy *phy = &dev->phy;
  2250. struct b43_phy_g *gphy = phy->g;
  2251. kfree(gphy->lo_control);
  2252. if (gphy->dyn_tssi_tbl)
  2253. kfree(gphy->tssi2dbm);
  2254. gphy->dyn_tssi_tbl = false;
  2255. gphy->tssi2dbm = NULL;
  2256. kfree(gphy);
  2257. dev->phy.g = NULL;
  2258. }
  2259. static int b43_gphy_op_prepare_hardware(struct b43_wldev *dev)
  2260. {
  2261. struct b43_phy *phy = &dev->phy;
  2262. struct b43_phy_g *gphy = phy->g;
  2263. struct b43_txpower_lo_control *lo = gphy->lo_control;
  2264. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  2265. default_baseband_attenuation(dev, &gphy->bbatt);
  2266. default_radio_attenuation(dev, &gphy->rfatt);
  2267. gphy->tx_control = (default_tx_control(dev) << 4);
  2268. generate_rfatt_list(dev, &lo->rfatt_list);
  2269. generate_bbatt_list(dev, &lo->bbatt_list);
  2270. /* Commit previous writes */
  2271. b43_read32(dev, B43_MMIO_MACCTL);
  2272. if (phy->rev == 1) {
  2273. /* Workaround: Temporarly disable gmode through the early init
  2274. * phase, as the gmode stuff is not needed for phy rev 1 */
  2275. phy->gmode = false;
  2276. b43_wireless_core_reset(dev, 0);
  2277. b43_phy_initg(dev);
  2278. phy->gmode = true;
  2279. b43_wireless_core_reset(dev, 1);
  2280. }
  2281. return 0;
  2282. }
  2283. static int b43_gphy_op_init(struct b43_wldev *dev)
  2284. {
  2285. b43_phy_initg(dev);
  2286. return 0;
  2287. }
  2288. static void b43_gphy_op_exit(struct b43_wldev *dev)
  2289. {
  2290. b43_lo_g_cleanup(dev);
  2291. }
  2292. static u16 b43_gphy_op_read(struct b43_wldev *dev, u16 reg)
  2293. {
  2294. b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
  2295. return b43_read16(dev, B43_MMIO_PHY_DATA);
  2296. }
  2297. static void b43_gphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
  2298. {
  2299. b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
  2300. b43_write16(dev, B43_MMIO_PHY_DATA, value);
  2301. }
  2302. static u16 b43_gphy_op_radio_read(struct b43_wldev *dev, u16 reg)
  2303. {
  2304. /* Register 1 is a 32-bit register. */
  2305. B43_WARN_ON(reg == 1);
  2306. /* G-PHY needs 0x80 for read access. */
  2307. reg |= 0x80;
  2308. b43_write16f(dev, B43_MMIO_RADIO_CONTROL, reg);
  2309. return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
  2310. }
  2311. static void b43_gphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
  2312. {
  2313. /* Register 1 is a 32-bit register. */
  2314. B43_WARN_ON(reg == 1);
  2315. b43_write16f(dev, B43_MMIO_RADIO_CONTROL, reg);
  2316. b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
  2317. }
  2318. static bool b43_gphy_op_supports_hwpctl(struct b43_wldev *dev)
  2319. {
  2320. return (dev->phy.rev >= 6);
  2321. }
  2322. static void b43_gphy_op_software_rfkill(struct b43_wldev *dev,
  2323. bool blocked)
  2324. {
  2325. struct b43_phy *phy = &dev->phy;
  2326. struct b43_phy_g *gphy = phy->g;
  2327. unsigned int channel;
  2328. might_sleep();
  2329. if (!blocked) {
  2330. /* Turn radio ON */
  2331. if (phy->radio_on)
  2332. return;
  2333. b43_phy_write(dev, 0x0015, 0x8000);
  2334. b43_phy_write(dev, 0x0015, 0xCC00);
  2335. b43_phy_write(dev, 0x0015, (phy->gmode ? 0x00C0 : 0x0000));
  2336. if (gphy->radio_off_context.valid) {
  2337. /* Restore the RFover values. */
  2338. b43_phy_write(dev, B43_PHY_RFOVER,
  2339. gphy->radio_off_context.rfover);
  2340. b43_phy_write(dev, B43_PHY_RFOVERVAL,
  2341. gphy->radio_off_context.rfoverval);
  2342. gphy->radio_off_context.valid = false;
  2343. }
  2344. channel = phy->channel;
  2345. b43_gphy_channel_switch(dev, 6, 1);
  2346. b43_gphy_channel_switch(dev, channel, 0);
  2347. } else {
  2348. /* Turn radio OFF */
  2349. u16 rfover, rfoverval;
  2350. rfover = b43_phy_read(dev, B43_PHY_RFOVER);
  2351. rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
  2352. gphy->radio_off_context.rfover = rfover;
  2353. gphy->radio_off_context.rfoverval = rfoverval;
  2354. gphy->radio_off_context.valid = true;
  2355. b43_phy_write(dev, B43_PHY_RFOVER, rfover | 0x008C);
  2356. b43_phy_write(dev, B43_PHY_RFOVERVAL, rfoverval & 0xFF73);
  2357. }
  2358. }
  2359. static int b43_gphy_op_switch_channel(struct b43_wldev *dev,
  2360. unsigned int new_channel)
  2361. {
  2362. if ((new_channel < 1) || (new_channel > 14))
  2363. return -EINVAL;
  2364. b43_gphy_channel_switch(dev, new_channel, 0);
  2365. return 0;
  2366. }
  2367. static unsigned int b43_gphy_op_get_default_chan(struct b43_wldev *dev)
  2368. {
  2369. return 1; /* Default to channel 1 */
  2370. }
  2371. static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
  2372. {
  2373. struct b43_phy *phy = &dev->phy;
  2374. u16 tmp;
  2375. int autodiv = 0;
  2376. if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
  2377. autodiv = 1;
  2378. b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
  2379. b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT,
  2380. (autodiv ? B43_ANTENNA_AUTO1 : antenna) <<
  2381. B43_PHY_BBANDCFG_RXANT_SHIFT);
  2382. if (autodiv) {
  2383. tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
  2384. if (antenna == B43_ANTENNA_AUTO1)
  2385. tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
  2386. else
  2387. tmp |= B43_PHY_ANTDWELL_AUTODIV1;
  2388. b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
  2389. }
  2390. tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT);
  2391. if (autodiv)
  2392. tmp |= B43_PHY_ANTWRSETT_ARXDIV;
  2393. else
  2394. tmp &= ~B43_PHY_ANTWRSETT_ARXDIV;
  2395. b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp);
  2396. if (autodiv)
  2397. b43_phy_set(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV);
  2398. else {
  2399. b43_phy_mask(dev, B43_PHY_ANTWRSETT,
  2400. B43_PHY_ANTWRSETT_ARXDIV);
  2401. }
  2402. if (phy->rev >= 2) {
  2403. b43_phy_set(dev, B43_PHY_OFDM61, B43_PHY_OFDM61_10);
  2404. b43_phy_maskset(dev, B43_PHY_DIVSRCHGAINBACK, 0xFF00, 0x15);
  2405. if (phy->rev == 2)
  2406. b43_phy_write(dev, B43_PHY_ADIVRELATED, 8);
  2407. else
  2408. b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8);
  2409. }
  2410. if (phy->rev >= 6)
  2411. b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC);
  2412. b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
  2413. }
  2414. static int b43_gphy_op_interf_mitigation(struct b43_wldev *dev,
  2415. enum b43_interference_mitigation mode)
  2416. {
  2417. struct b43_phy *phy = &dev->phy;
  2418. struct b43_phy_g *gphy = phy->g;
  2419. int currentmode;
  2420. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  2421. if ((phy->rev == 0) || (!phy->gmode))
  2422. return -ENODEV;
  2423. gphy->aci_wlan_automatic = false;
  2424. switch (mode) {
  2425. case B43_INTERFMODE_AUTOWLAN:
  2426. gphy->aci_wlan_automatic = true;
  2427. if (gphy->aci_enable)
  2428. mode = B43_INTERFMODE_MANUALWLAN;
  2429. else
  2430. mode = B43_INTERFMODE_NONE;
  2431. break;
  2432. case B43_INTERFMODE_NONE:
  2433. case B43_INTERFMODE_NONWLAN:
  2434. case B43_INTERFMODE_MANUALWLAN:
  2435. break;
  2436. default:
  2437. return -EINVAL;
  2438. }
  2439. currentmode = gphy->interfmode;
  2440. if (currentmode == mode)
  2441. return 0;
  2442. if (currentmode != B43_INTERFMODE_NONE)
  2443. b43_radio_interference_mitigation_disable(dev, currentmode);
  2444. if (mode == B43_INTERFMODE_NONE) {
  2445. gphy->aci_enable = false;
  2446. gphy->aci_hw_rssi = false;
  2447. } else
  2448. b43_radio_interference_mitigation_enable(dev, mode);
  2449. gphy->interfmode = mode;
  2450. return 0;
  2451. }
  2452. /* https://bcm-specs.sipsolutions.net/EstimatePowerOut
  2453. * This function converts a TSSI value to dBm in Q5.2
  2454. */
  2455. static s8 b43_gphy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
  2456. {
  2457. struct b43_phy_g *gphy = dev->phy.g;
  2458. s8 dbm;
  2459. s32 tmp;
  2460. tmp = (gphy->tgt_idle_tssi - gphy->cur_idle_tssi + tssi);
  2461. tmp = clamp_val(tmp, 0x00, 0x3F);
  2462. dbm = gphy->tssi2dbm[tmp];
  2463. return dbm;
  2464. }
  2465. static void b43_put_attenuation_into_ranges(struct b43_wldev *dev,
  2466. int *_bbatt, int *_rfatt)
  2467. {
  2468. int rfatt = *_rfatt;
  2469. int bbatt = *_bbatt;
  2470. struct b43_txpower_lo_control *lo = dev->phy.g->lo_control;
  2471. /* Get baseband and radio attenuation values into their permitted ranges.
  2472. * Radio attenuation affects power level 4 times as much as baseband. */
  2473. /* Range constants */
  2474. const int rf_min = lo->rfatt_list.min_val;
  2475. const int rf_max = lo->rfatt_list.max_val;
  2476. const int bb_min = lo->bbatt_list.min_val;
  2477. const int bb_max = lo->bbatt_list.max_val;
  2478. while (1) {
  2479. if (rfatt > rf_max && bbatt > bb_max - 4)
  2480. break; /* Can not get it into ranges */
  2481. if (rfatt < rf_min && bbatt < bb_min + 4)
  2482. break; /* Can not get it into ranges */
  2483. if (bbatt > bb_max && rfatt > rf_max - 1)
  2484. break; /* Can not get it into ranges */
  2485. if (bbatt < bb_min && rfatt < rf_min + 1)
  2486. break; /* Can not get it into ranges */
  2487. if (bbatt > bb_max) {
  2488. bbatt -= 4;
  2489. rfatt += 1;
  2490. continue;
  2491. }
  2492. if (bbatt < bb_min) {
  2493. bbatt += 4;
  2494. rfatt -= 1;
  2495. continue;
  2496. }
  2497. if (rfatt > rf_max) {
  2498. rfatt -= 1;
  2499. bbatt += 4;
  2500. continue;
  2501. }
  2502. if (rfatt < rf_min) {
  2503. rfatt += 1;
  2504. bbatt -= 4;
  2505. continue;
  2506. }
  2507. break;
  2508. }
  2509. *_rfatt = clamp_val(rfatt, rf_min, rf_max);
  2510. *_bbatt = clamp_val(bbatt, bb_min, bb_max);
  2511. }
  2512. static void b43_gphy_op_adjust_txpower(struct b43_wldev *dev)
  2513. {
  2514. struct b43_phy *phy = &dev->phy;
  2515. struct b43_phy_g *gphy = phy->g;
  2516. int rfatt, bbatt;
  2517. u8 tx_control;
  2518. b43_mac_suspend(dev);
  2519. /* Calculate the new attenuation values. */
  2520. bbatt = gphy->bbatt.att;
  2521. bbatt += gphy->bbatt_delta;
  2522. rfatt = gphy->rfatt.att;
  2523. rfatt += gphy->rfatt_delta;
  2524. b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
  2525. tx_control = gphy->tx_control;
  2526. if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
  2527. if (rfatt <= 1) {
  2528. if (tx_control == 0) {
  2529. tx_control =
  2530. B43_TXCTL_PA2DB |
  2531. B43_TXCTL_TXMIX;
  2532. rfatt += 2;
  2533. bbatt += 2;
  2534. } else if (dev->dev->bus_sprom->
  2535. boardflags_lo &
  2536. B43_BFL_PACTRL) {
  2537. bbatt += 4 * (rfatt - 2);
  2538. rfatt = 2;
  2539. }
  2540. } else if (rfatt > 4 && tx_control) {
  2541. tx_control = 0;
  2542. if (bbatt < 3) {
  2543. rfatt -= 3;
  2544. bbatt += 2;
  2545. } else {
  2546. rfatt -= 2;
  2547. bbatt -= 2;
  2548. }
  2549. }
  2550. }
  2551. /* Save the control values */
  2552. gphy->tx_control = tx_control;
  2553. b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
  2554. gphy->rfatt.att = rfatt;
  2555. gphy->bbatt.att = bbatt;
  2556. if (b43_debug(dev, B43_DBG_XMITPOWER))
  2557. b43dbg(dev->wl, "Adjusting TX power\n");
  2558. /* Adjust the hardware */
  2559. b43_phy_lock(dev);
  2560. b43_radio_lock(dev);
  2561. b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt,
  2562. gphy->tx_control);
  2563. b43_radio_unlock(dev);
  2564. b43_phy_unlock(dev);
  2565. b43_mac_enable(dev);
  2566. }
  2567. static enum b43_txpwr_result b43_gphy_op_recalc_txpower(struct b43_wldev *dev,
  2568. bool ignore_tssi)
  2569. {
  2570. struct b43_phy *phy = &dev->phy;
  2571. struct b43_phy_g *gphy = phy->g;
  2572. unsigned int average_tssi;
  2573. int cck_result, ofdm_result;
  2574. int estimated_pwr, desired_pwr, pwr_adjust;
  2575. int rfatt_delta, bbatt_delta;
  2576. unsigned int max_pwr;
  2577. /* First get the average TSSI */
  2578. cck_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_CCK);
  2579. ofdm_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_OFDM_G);
  2580. if ((cck_result < 0) && (ofdm_result < 0)) {
  2581. /* No TSSI information available */
  2582. if (!ignore_tssi)
  2583. goto no_adjustment_needed;
  2584. cck_result = 0;
  2585. ofdm_result = 0;
  2586. }
  2587. if (cck_result < 0)
  2588. average_tssi = ofdm_result;
  2589. else if (ofdm_result < 0)
  2590. average_tssi = cck_result;
  2591. else
  2592. average_tssi = (cck_result + ofdm_result) / 2;
  2593. /* Merge the average with the stored value. */
  2594. if (likely(gphy->average_tssi != 0xFF))
  2595. average_tssi = (average_tssi + gphy->average_tssi) / 2;
  2596. gphy->average_tssi = average_tssi;
  2597. B43_WARN_ON(average_tssi >= B43_TSSI_MAX);
  2598. /* Estimate the TX power emission based on the TSSI */
  2599. estimated_pwr = b43_gphy_estimate_power_out(dev, average_tssi);
  2600. B43_WARN_ON(phy->type != B43_PHYTYPE_G);
  2601. max_pwr = dev->dev->bus_sprom->maxpwr_bg;
  2602. if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
  2603. max_pwr -= 3; /* minus 0.75 */
  2604. if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) {
  2605. b43warn(dev->wl,
  2606. "Invalid max-TX-power value in SPROM.\n");
  2607. max_pwr = INT_TO_Q52(20); /* fake it */
  2608. dev->dev->bus_sprom->maxpwr_bg = max_pwr;
  2609. }
  2610. /* Get desired power (in Q5.2) */
  2611. if (phy->desired_txpower < 0)
  2612. desired_pwr = INT_TO_Q52(0);
  2613. else
  2614. desired_pwr = INT_TO_Q52(phy->desired_txpower);
  2615. /* And limit it. max_pwr already is Q5.2 */
  2616. desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
  2617. if (b43_debug(dev, B43_DBG_XMITPOWER)) {
  2618. b43dbg(dev->wl,
  2619. "[TX power] current = " Q52_FMT
  2620. " dBm, desired = " Q52_FMT
  2621. " dBm, max = " Q52_FMT "\n",
  2622. Q52_ARG(estimated_pwr),
  2623. Q52_ARG(desired_pwr),
  2624. Q52_ARG(max_pwr));
  2625. }
  2626. /* Calculate the adjustment delta. */
  2627. pwr_adjust = desired_pwr - estimated_pwr;
  2628. if (pwr_adjust == 0)
  2629. goto no_adjustment_needed;
  2630. /* RF attenuation delta. */
  2631. rfatt_delta = ((pwr_adjust + 7) / 8);
  2632. /* Lower attenuation => Bigger power output. Negate it. */
  2633. rfatt_delta = -rfatt_delta;
  2634. /* Baseband attenuation delta. */
  2635. bbatt_delta = pwr_adjust / 2;
  2636. /* Lower attenuation => Bigger power output. Negate it. */
  2637. bbatt_delta = -bbatt_delta;
  2638. /* RF att affects power level 4 times as much as
  2639. * Baseband attennuation. Subtract it. */
  2640. bbatt_delta -= 4 * rfatt_delta;
  2641. #if B43_DEBUG
  2642. if (b43_debug(dev, B43_DBG_XMITPOWER)) {
  2643. int dbm = pwr_adjust < 0 ? -pwr_adjust : pwr_adjust;
  2644. b43dbg(dev->wl,
  2645. "[TX power deltas] %s" Q52_FMT " dBm => "
  2646. "bbatt-delta = %d, rfatt-delta = %d\n",
  2647. (pwr_adjust < 0 ? "-" : ""), Q52_ARG(dbm),
  2648. bbatt_delta, rfatt_delta);
  2649. }
  2650. #endif /* DEBUG */
  2651. /* So do we finally need to adjust something in hardware? */
  2652. if ((rfatt_delta == 0) && (bbatt_delta == 0))
  2653. goto no_adjustment_needed;
  2654. /* Save the deltas for later when we adjust the power. */
  2655. gphy->bbatt_delta = bbatt_delta;
  2656. gphy->rfatt_delta = rfatt_delta;
  2657. /* We need to adjust the TX power on the device. */
  2658. return B43_TXPWR_RES_NEED_ADJUST;
  2659. no_adjustment_needed:
  2660. return B43_TXPWR_RES_DONE;
  2661. }
  2662. static void b43_gphy_op_pwork_15sec(struct b43_wldev *dev)
  2663. {
  2664. struct b43_phy *phy = &dev->phy;
  2665. struct b43_phy_g *gphy = phy->g;
  2666. b43_mac_suspend(dev);
  2667. //TODO: update_aci_moving_average
  2668. if (gphy->aci_enable && gphy->aci_wlan_automatic) {
  2669. if (!gphy->aci_enable && 1 /*TODO: not scanning? */ ) {
  2670. if (0 /*TODO: bunch of conditions */ ) {
  2671. phy->ops->interf_mitigation(dev,
  2672. B43_INTERFMODE_MANUALWLAN);
  2673. }
  2674. } else if (0 /*TODO*/) {
  2675. if (/*(aci_average > 1000) &&*/ !b43_gphy_aci_scan(dev))
  2676. phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
  2677. }
  2678. } else if (gphy->interfmode == B43_INTERFMODE_NONWLAN &&
  2679. phy->rev == 1) {
  2680. //TODO: implement rev1 workaround
  2681. }
  2682. b43_lo_g_maintenance_work(dev);
  2683. b43_mac_enable(dev);
  2684. }
  2685. static void b43_gphy_op_pwork_60sec(struct b43_wldev *dev)
  2686. {
  2687. struct b43_phy *phy = &dev->phy;
  2688. if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI))
  2689. return;
  2690. b43_mac_suspend(dev);
  2691. b43_calc_nrssi_slope(dev);
  2692. if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
  2693. u8 old_chan = phy->channel;
  2694. /* VCO Calibration */
  2695. if (old_chan >= 8)
  2696. b43_switch_channel(dev, 1);
  2697. else
  2698. b43_switch_channel(dev, 13);
  2699. b43_switch_channel(dev, old_chan);
  2700. }
  2701. b43_mac_enable(dev);
  2702. }
  2703. const struct b43_phy_operations b43_phyops_g = {
  2704. .allocate = b43_gphy_op_allocate,
  2705. .free = b43_gphy_op_free,
  2706. .prepare_structs = b43_gphy_op_prepare_structs,
  2707. .prepare_hardware = b43_gphy_op_prepare_hardware,
  2708. .init = b43_gphy_op_init,
  2709. .exit = b43_gphy_op_exit,
  2710. .phy_read = b43_gphy_op_read,
  2711. .phy_write = b43_gphy_op_write,
  2712. .radio_read = b43_gphy_op_radio_read,
  2713. .radio_write = b43_gphy_op_radio_write,
  2714. .supports_hwpctl = b43_gphy_op_supports_hwpctl,
  2715. .software_rfkill = b43_gphy_op_software_rfkill,
  2716. .switch_analog = b43_phyop_switch_analog_generic,
  2717. .switch_channel = b43_gphy_op_switch_channel,
  2718. .get_default_chan = b43_gphy_op_get_default_chan,
  2719. .set_rx_antenna = b43_gphy_op_set_rx_antenna,
  2720. .interf_mitigation = b43_gphy_op_interf_mitigation,
  2721. .recalc_txpower = b43_gphy_op_recalc_txpower,
  2722. .adjust_txpower = b43_gphy_op_adjust_txpower,
  2723. .pwork_15sec = b43_gphy_op_pwork_15sec,
  2724. .pwork_60sec = b43_gphy_op_pwork_60sec,
  2725. };