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-rw-r--r--drivers/net/wireless/ath/ath5k/phy.c833
1 files changed, 580 insertions, 253 deletions
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 6284c389ba18..55441913344d 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -29,6 +29,95 @@
29#include "rfbuffer.h" 29#include "rfbuffer.h"
30#include "rfgain.h" 30#include "rfgain.h"
31 31
32
33/******************\
34* Helper functions *
35\******************/
36
37/*
38 * Get the PHY Chip revision
39 */
40u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, unsigned int chan)
41{
42 unsigned int i;
43 u32 srev;
44 u16 ret;
45
46 /*
47 * Set the radio chip access register
48 */
49 switch (chan) {
50 case CHANNEL_2GHZ:
51 ath5k_hw_reg_write(ah, AR5K_PHY_SHIFT_2GHZ, AR5K_PHY(0));
52 break;
53 case CHANNEL_5GHZ:
54 ath5k_hw_reg_write(ah, AR5K_PHY_SHIFT_5GHZ, AR5K_PHY(0));
55 break;
56 default:
57 return 0;
58 }
59
60 mdelay(2);
61
62 /* ...wait until PHY is ready and read the selected radio revision */
63 ath5k_hw_reg_write(ah, 0x00001c16, AR5K_PHY(0x34));
64
65 for (i = 0; i < 8; i++)
66 ath5k_hw_reg_write(ah, 0x00010000, AR5K_PHY(0x20));
67
68 if (ah->ah_version == AR5K_AR5210) {
69 srev = ath5k_hw_reg_read(ah, AR5K_PHY(256) >> 28) & 0xf;
70 ret = (u16)ath5k_hw_bitswap(srev, 4) + 1;
71 } else {
72 srev = (ath5k_hw_reg_read(ah, AR5K_PHY(0x100)) >> 24) & 0xff;
73 ret = (u16)ath5k_hw_bitswap(((srev & 0xf0) >> 4) |
74 ((srev & 0x0f) << 4), 8);
75 }
76
77 /* Reset to the 5GHz mode */
78 ath5k_hw_reg_write(ah, AR5K_PHY_SHIFT_5GHZ, AR5K_PHY(0));
79
80 return ret;
81}
82
83/*
84 * Check if a channel is supported
85 */
86bool ath5k_channel_ok(struct ath5k_hw *ah, u16 freq, unsigned int flags)
87{
88 /* Check if the channel is in our supported range */
89 if (flags & CHANNEL_2GHZ) {
90 if ((freq >= ah->ah_capabilities.cap_range.range_2ghz_min) &&
91 (freq <= ah->ah_capabilities.cap_range.range_2ghz_max))
92 return true;
93 } else if (flags & CHANNEL_5GHZ)
94 if ((freq >= ah->ah_capabilities.cap_range.range_5ghz_min) &&
95 (freq <= ah->ah_capabilities.cap_range.range_5ghz_max))
96 return true;
97
98 return false;
99}
100
101bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah,
102 struct ieee80211_channel *channel)
103{
104 u8 refclk_freq;
105
106 if ((ah->ah_radio == AR5K_RF5112) ||
107 (ah->ah_radio == AR5K_RF5413) ||
108 (ah->ah_mac_version == (AR5K_SREV_AR2417 >> 4)))
109 refclk_freq = 40;
110 else
111 refclk_freq = 32;
112
113 if ((channel->center_freq % refclk_freq != 0) &&
114 ((channel->center_freq % refclk_freq < 10) ||
115 (channel->center_freq % refclk_freq > 22)))
116 return true;
117 else
118 return false;
119}
120
32/* 121/*
33 * Used to modify RF Banks before writing them to AR5K_RF_BUFFER 122 * Used to modify RF Banks before writing them to AR5K_RF_BUFFER
34 */ 123 */
@@ -110,12 +199,124 @@ static unsigned int ath5k_hw_rfb_op(struct ath5k_hw *ah,
110 return data; 199 return data;
111} 200}
112 201
202/**
203 * ath5k_hw_write_ofdm_timings - set OFDM timings on AR5212
204 *
205 * @ah: the &struct ath5k_hw
206 * @channel: the currently set channel upon reset
207 *
208 * Write the delta slope coefficient (used on pilot tracking ?) for OFDM
209 * operation on the AR5212 upon reset. This is a helper for ath5k_hw_phy_init.
210 *
211 * Since delta slope is floating point we split it on its exponent and
212 * mantissa and provide these values on hw.
213 *
214 * For more infos i think this patent is related
215 * http://www.freepatentsonline.com/7184495.html
216 */
217static inline int ath5k_hw_write_ofdm_timings(struct ath5k_hw *ah,
218 struct ieee80211_channel *channel)
219{
220 /* Get exponent and mantissa and set it */
221 u32 coef_scaled, coef_exp, coef_man,
222 ds_coef_exp, ds_coef_man, clock;
223
224 BUG_ON(!(ah->ah_version == AR5K_AR5212) ||
225 !(channel->hw_value & CHANNEL_OFDM));
226
227 /* Get coefficient
228 * ALGO: coef = (5 * clock / carrier_freq) / 2
229 * we scale coef by shifting clock value by 24 for
230 * better precision since we use integers */
231 switch (ah->ah_bwmode) {
232 case AR5K_BWMODE_40MHZ:
233 clock = 40 * 2;
234 break;
235 case AR5K_BWMODE_10MHZ:
236 clock = 40 / 2;
237 break;
238 case AR5K_BWMODE_5MHZ:
239 clock = 40 / 4;
240 break;
241 default:
242 clock = 40;
243 break;
244 }
245 coef_scaled = ((5 * (clock << 24)) / 2) / channel->center_freq;
246
247 /* Get exponent
248 * ALGO: coef_exp = 14 - highest set bit position */
249 coef_exp = ilog2(coef_scaled);
250
251 /* Doesn't make sense if it's zero*/
252 if (!coef_scaled || !coef_exp)
253 return -EINVAL;
254
255 /* Note: we've shifted coef_scaled by 24 */
256 coef_exp = 14 - (coef_exp - 24);
257
258
259 /* Get mantissa (significant digits)
260 * ALGO: coef_mant = floor(coef_scaled* 2^coef_exp+0.5) */
261 coef_man = coef_scaled +
262 (1 << (24 - coef_exp - 1));
263
264 /* Calculate delta slope coefficient exponent
265 * and mantissa (remove scaling) and set them on hw */
266 ds_coef_man = coef_man >> (24 - coef_exp);
267 ds_coef_exp = coef_exp - 16;
268
269 AR5K_REG_WRITE_BITS(ah, AR5K_PHY_TIMING_3,
270 AR5K_PHY_TIMING_3_DSC_MAN, ds_coef_man);
271 AR5K_REG_WRITE_BITS(ah, AR5K_PHY_TIMING_3,
272 AR5K_PHY_TIMING_3_DSC_EXP, ds_coef_exp);
273
274 return 0;
275}
276
277int ath5k_hw_phy_disable(struct ath5k_hw *ah)
278{
279 /*Just a try M.F.*/
280 ath5k_hw_reg_write(ah, AR5K_PHY_ACT_DISABLE, AR5K_PHY_ACT);
281
282 return 0;
283}
284
285/*
286 * Wait for synth to settle
287 */
288static void ath5k_hw_wait_for_synth(struct ath5k_hw *ah,
289 struct ieee80211_channel *channel)
290{
291 /*
292 * On 5211+ read activation -> rx delay
293 * and use it (100ns steps).
294 */
295 if (ah->ah_version != AR5K_AR5210) {
296 u32 delay;
297 delay = ath5k_hw_reg_read(ah, AR5K_PHY_RX_DELAY) &
298 AR5K_PHY_RX_DELAY_M;
299 delay = (channel->hw_value & CHANNEL_CCK) ?
300 ((delay << 2) / 22) : (delay / 10);
301 if (ah->ah_bwmode == AR5K_BWMODE_10MHZ)
302 delay = delay << 1;
303 if (ah->ah_bwmode == AR5K_BWMODE_5MHZ)
304 delay = delay << 2;
305 /* XXX: /2 on turbo ? Let's be safe
306 * for now */
307 udelay(100 + delay);
308 } else {
309 mdelay(1);
310 }
311}
312
313
113/**********************\ 314/**********************\
114* RF Gain optimization * 315* RF Gain optimization *
115\**********************/ 316\**********************/
116 317
117/* 318/*
118 * This code is used to optimize rf gain on different environments 319 * This code is used to optimize RF gain on different environments
119 * (temperature mostly) based on feedback from a power detector. 320 * (temperature mostly) based on feedback from a power detector.
120 * 321 *
121 * It's only used on RF5111 and RF5112, later RF chips seem to have 322 * It's only used on RF5111 and RF5112, later RF chips seem to have
@@ -134,11 +335,11 @@ static unsigned int ath5k_hw_rfb_op(struct ath5k_hw *ah,
134 * http://madwifi-project.org/ticket/1659 335 * http://madwifi-project.org/ticket/1659
135 * with various measurements and diagrams 336 * with various measurements and diagrams
136 * 337 *
137 * TODO: Deal with power drops due to probes by setting an apropriate 338 * TODO: Deal with power drops due to probes by setting an appropriate
138 * tx power on the probe packets ! Make this part of the calibration process. 339 * tx power on the probe packets ! Make this part of the calibration process.
139 */ 340 */
140 341
141/* Initialize ah_gain durring attach */ 342/* Initialize ah_gain during attach */
142int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah) 343int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah)
143{ 344{
144 /* Initialize the gain optimization values */ 345 /* Initialize the gain optimization values */
@@ -302,7 +503,7 @@ static bool ath5k_hw_rf_check_gainf_readback(struct ath5k_hw *ah)
302} 503}
303 504
304/* Perform gain_F adjustment by choosing the right set 505/* Perform gain_F adjustment by choosing the right set
305 * of parameters from rf gain optimization ladder */ 506 * of parameters from RF gain optimization ladder */
306static s8 ath5k_hw_rf_gainf_adjust(struct ath5k_hw *ah) 507static s8 ath5k_hw_rf_gainf_adjust(struct ath5k_hw *ah)
307{ 508{
308 const struct ath5k_gain_opt *go; 509 const struct ath5k_gain_opt *go;
@@ -367,7 +568,7 @@ done:
367 return ret; 568 return ret;
368} 569}
369 570
370/* Main callback for thermal rf gain calibration engine 571/* Main callback for thermal RF gain calibration engine
371 * Check for a new gain reading and schedule an adjustment 572 * Check for a new gain reading and schedule an adjustment
372 * if needed. 573 * if needed.
373 * 574 *
@@ -433,13 +634,13 @@ done:
433 return ah->ah_gain.g_state; 634 return ah->ah_gain.g_state;
434} 635}
435 636
436/* Write initial rf gain table to set the RF sensitivity 637/* Write initial RF gain table to set the RF sensitivity
437 * this one works on all RF chips and has nothing to do 638 * this one works on all RF chips and has nothing to do
438 * with gain_F calibration */ 639 * with gain_F calibration */
439int ath5k_hw_rfgain_init(struct ath5k_hw *ah, unsigned int freq) 640static int ath5k_hw_rfgain_init(struct ath5k_hw *ah, enum ieee80211_band band)
440{ 641{
441 const struct ath5k_ini_rfgain *ath5k_rfg; 642 const struct ath5k_ini_rfgain *ath5k_rfg;
442 unsigned int i, size; 643 unsigned int i, size, index;
443 644
444 switch (ah->ah_radio) { 645 switch (ah->ah_radio) {
445 case AR5K_RF5111: 646 case AR5K_RF5111:
@@ -471,17 +672,11 @@ int ath5k_hw_rfgain_init(struct ath5k_hw *ah, unsigned int freq)
471 return -EINVAL; 672 return -EINVAL;
472 } 673 }
473 674
474 switch (freq) { 675 index = (band == IEEE80211_BAND_2GHZ) ? 1 : 0;
475 case AR5K_INI_RFGAIN_2GHZ:
476 case AR5K_INI_RFGAIN_5GHZ:
477 break;
478 default:
479 return -EINVAL;
480 }
481 676
482 for (i = 0; i < size; i++) { 677 for (i = 0; i < size; i++) {
483 AR5K_REG_WAIT(i); 678 AR5K_REG_WAIT(i);
484 ath5k_hw_reg_write(ah, ath5k_rfg[i].rfg_value[freq], 679 ath5k_hw_reg_write(ah, ath5k_rfg[i].rfg_value[index],
485 (u32)ath5k_rfg[i].rfg_register); 680 (u32)ath5k_rfg[i].rfg_register);
486 } 681 }
487 682
@@ -494,12 +689,11 @@ int ath5k_hw_rfgain_init(struct ath5k_hw *ah, unsigned int freq)
494* RF Registers setup * 689* RF Registers setup *
495\********************/ 690\********************/
496 691
497
498/* 692/*
499 * Setup RF registers by writing rf buffer on hw 693 * Setup RF registers by writing RF buffer on hw
500 */ 694 */
501int ath5k_hw_rfregs_init(struct ath5k_hw *ah, struct ieee80211_channel *channel, 695static int ath5k_hw_rfregs_init(struct ath5k_hw *ah,
502 unsigned int mode) 696 struct ieee80211_channel *channel, unsigned int mode)
503{ 697{
504 const struct ath5k_rf_reg *rf_regs; 698 const struct ath5k_rf_reg *rf_regs;
505 const struct ath5k_ini_rfbuffer *ini_rfb; 699 const struct ath5k_ini_rfbuffer *ini_rfb;
@@ -571,7 +765,7 @@ int ath5k_hw_rfregs_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
571 return -EINVAL; 765 return -EINVAL;
572 } 766 }
573 767
574 /* If it's the first time we set rf buffer, allocate 768 /* If it's the first time we set RF buffer, allocate
575 * ah->ah_rf_banks based on ah->ah_rf_banks_size 769 * ah->ah_rf_banks based on ah->ah_rf_banks_size
576 * we set above */ 770 * we set above */
577 if (ah->ah_rf_banks == NULL) { 771 if (ah->ah_rf_banks == NULL) {
@@ -652,6 +846,11 @@ int ath5k_hw_rfregs_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
652 846
653 g_step = &go->go_step[ah->ah_gain.g_step_idx]; 847 g_step = &go->go_step[ah->ah_gain.g_step_idx];
654 848
849 /* Set turbo mode (N/A on RF5413) */
850 if ((ah->ah_bwmode == AR5K_BWMODE_40MHZ) &&
851 (ah->ah_radio != AR5K_RF5413))
852 ath5k_hw_rfb_op(ah, rf_regs, 1, AR5K_RF_TURBO, false);
853
655 /* Bank Modifications (chip-specific) */ 854 /* Bank Modifications (chip-specific) */
656 if (ah->ah_radio == AR5K_RF5111) { 855 if (ah->ah_radio == AR5K_RF5111) {
657 856
@@ -691,7 +890,23 @@ int ath5k_hw_rfregs_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
691 ath5k_hw_rfb_op(ah, rf_regs, ee->ee_xpd[ee_mode], 890 ath5k_hw_rfb_op(ah, rf_regs, ee->ee_xpd[ee_mode],
692 AR5K_RF_PLO_SEL, true); 891 AR5K_RF_PLO_SEL, true);
693 892
694 /* TODO: Half/quarter channel support */ 893 /* Tweak power detectors for half/quarter rate support */
894 if (ah->ah_bwmode == AR5K_BWMODE_5MHZ ||
895 ah->ah_bwmode == AR5K_BWMODE_10MHZ) {
896 u8 wait_i;
897
898 ath5k_hw_rfb_op(ah, rf_regs, 0x1f,
899 AR5K_RF_WAIT_S, true);
900
901 wait_i = (ah->ah_bwmode == AR5K_BWMODE_5MHZ) ?
902 0x1f : 0x10;
903
904 ath5k_hw_rfb_op(ah, rf_regs, wait_i,
905 AR5K_RF_WAIT_I, true);
906 ath5k_hw_rfb_op(ah, rf_regs, 3,
907 AR5K_RF_MAX_TIME, true);
908
909 }
695 } 910 }
696 911
697 if (ah->ah_radio == AR5K_RF5112) { 912 if (ah->ah_radio == AR5K_RF5112) {
@@ -789,8 +1004,20 @@ int ath5k_hw_rfregs_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
789 ath5k_hw_rfb_op(ah, rf_regs, ee->ee_i_gain[ee_mode], 1004 ath5k_hw_rfb_op(ah, rf_regs, ee->ee_i_gain[ee_mode],
790 AR5K_RF_GAIN_I, true); 1005 AR5K_RF_GAIN_I, true);
791 1006
792 /* TODO: Half/quarter channel support */ 1007 /* Tweak power detector for half/quarter rates */
1008 if (ah->ah_bwmode == AR5K_BWMODE_5MHZ ||
1009 ah->ah_bwmode == AR5K_BWMODE_10MHZ) {
1010 u8 pd_delay;
1011
1012 pd_delay = (ah->ah_bwmode == AR5K_BWMODE_5MHZ) ?
1013 0xf : 0x8;
1014
1015 ath5k_hw_rfb_op(ah, rf_regs, pd_delay,
1016 AR5K_RF_PD_PERIOD_A, true);
1017 ath5k_hw_rfb_op(ah, rf_regs, 0xf,
1018 AR5K_RF_PD_DELAY_A, true);
793 1019
1020 }
794 } 1021 }
795 1022
796 if (ah->ah_radio == AR5K_RF5413 && 1023 if (ah->ah_radio == AR5K_RF5413 &&
@@ -822,25 +1049,7 @@ int ath5k_hw_rfregs_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
822\**************************/ 1049\**************************/
823 1050
824/* 1051/*
825 * Check if a channel is supported 1052 * Conversion needed for RF5110
826 */
827bool ath5k_channel_ok(struct ath5k_hw *ah, u16 freq, unsigned int flags)
828{
829 /* Check if the channel is in our supported range */
830 if (flags & CHANNEL_2GHZ) {
831 if ((freq >= ah->ah_capabilities.cap_range.range_2ghz_min) &&
832 (freq <= ah->ah_capabilities.cap_range.range_2ghz_max))
833 return true;
834 } else if (flags & CHANNEL_5GHZ)
835 if ((freq >= ah->ah_capabilities.cap_range.range_5ghz_min) &&
836 (freq <= ah->ah_capabilities.cap_range.range_5ghz_max))
837 return true;
838
839 return false;
840}
841
842/*
843 * Convertion needed for RF5110
844 */ 1053 */
845static u32 ath5k_hw_rf5110_chan2athchan(struct ieee80211_channel *channel) 1054static u32 ath5k_hw_rf5110_chan2athchan(struct ieee80211_channel *channel)
846{ 1055{
@@ -879,7 +1088,7 @@ static int ath5k_hw_rf5110_channel(struct ath5k_hw *ah,
879} 1088}
880 1089
881/* 1090/*
882 * Convertion needed for 5111 1091 * Conversion needed for 5111
883 */ 1092 */
884static int ath5k_hw_rf5111_chan2athchan(unsigned int ieee, 1093static int ath5k_hw_rf5111_chan2athchan(unsigned int ieee,
885 struct ath5k_athchan_2ghz *athchan) 1094 struct ath5k_athchan_2ghz *athchan)
@@ -1045,7 +1254,8 @@ static int ath5k_hw_rf2425_channel(struct ath5k_hw *ah,
1045/* 1254/*
1046 * Set a channel on the radio chip 1255 * Set a channel on the radio chip
1047 */ 1256 */
1048int ath5k_hw_channel(struct ath5k_hw *ah, struct ieee80211_channel *channel) 1257static int ath5k_hw_channel(struct ath5k_hw *ah,
1258 struct ieee80211_channel *channel)
1049{ 1259{
1050 int ret; 1260 int ret;
1051 /* 1261 /*
@@ -1071,6 +1281,7 @@ int ath5k_hw_channel(struct ath5k_hw *ah, struct ieee80211_channel *channel)
1071 case AR5K_RF5111: 1281 case AR5K_RF5111:
1072 ret = ath5k_hw_rf5111_channel(ah, channel); 1282 ret = ath5k_hw_rf5111_channel(ah, channel);
1073 break; 1283 break;
1284 case AR5K_RF2317:
1074 case AR5K_RF2425: 1285 case AR5K_RF2425:
1075 ret = ath5k_hw_rf2425_channel(ah, channel); 1286 ret = ath5k_hw_rf2425_channel(ah, channel);
1076 break; 1287 break;
@@ -1092,7 +1303,6 @@ int ath5k_hw_channel(struct ath5k_hw *ah, struct ieee80211_channel *channel)
1092 } 1303 }
1093 1304
1094 ah->ah_current_channel = channel; 1305 ah->ah_current_channel = channel;
1095 ah->ah_turbo = channel->hw_value == CHANNEL_T ? true : false;
1096 1306
1097 return 0; 1307 return 0;
1098} 1308}
@@ -1101,18 +1311,12 @@ int ath5k_hw_channel(struct ath5k_hw *ah, struct ieee80211_channel *channel)
1101 PHY calibration 1311 PHY calibration
1102\*****************/ 1312\*****************/
1103 1313
1104static int sign_extend(int val, const int nbits)
1105{
1106 int order = BIT(nbits-1);
1107 return (val ^ order) - order;
1108}
1109
1110static s32 ath5k_hw_read_measured_noise_floor(struct ath5k_hw *ah) 1314static s32 ath5k_hw_read_measured_noise_floor(struct ath5k_hw *ah)
1111{ 1315{
1112 s32 val; 1316 s32 val;
1113 1317
1114 val = ath5k_hw_reg_read(ah, AR5K_PHY_NF); 1318 val = ath5k_hw_reg_read(ah, AR5K_PHY_NF);
1115 return sign_extend(AR5K_REG_MS(val, AR5K_PHY_NF_MINCCA_PWR), 9); 1319 return sign_extend32(AR5K_REG_MS(val, AR5K_PHY_NF_MINCCA_PWR), 8);
1116} 1320}
1117 1321
1118void ath5k_hw_init_nfcal_hist(struct ath5k_hw *ah) 1322void ath5k_hw_init_nfcal_hist(struct ath5k_hw *ah)
@@ -1180,22 +1384,7 @@ void ath5k_hw_update_noise_floor(struct ath5k_hw *ah)
1180 return; 1384 return;
1181 } 1385 }
1182 1386
1183 switch (ah->ah_current_channel->hw_value & CHANNEL_MODES) { 1387 ee_mode = ath5k_eeprom_mode_from_channel(ah->ah_current_channel);
1184 case CHANNEL_A:
1185 case CHANNEL_T:
1186 case CHANNEL_XR:
1187 ee_mode = AR5K_EEPROM_MODE_11A;
1188 break;
1189 case CHANNEL_G:
1190 case CHANNEL_TG:
1191 ee_mode = AR5K_EEPROM_MODE_11G;
1192 break;
1193 default:
1194 case CHANNEL_B:
1195 ee_mode = AR5K_EEPROM_MODE_11B;
1196 break;
1197 }
1198
1199 1388
1200 /* completed NF calibration, test threshold */ 1389 /* completed NF calibration, test threshold */
1201 nf = ath5k_hw_read_measured_noise_floor(ah); 1390 nf = ath5k_hw_read_measured_noise_floor(ah);
@@ -1257,7 +1446,7 @@ static int ath5k_hw_rf5110_calibrate(struct ath5k_hw *ah,
1257 * Disable beacons and RX/TX queues, wait 1446 * Disable beacons and RX/TX queues, wait
1258 */ 1447 */
1259 AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW_5210, 1448 AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW_5210,
1260 AR5K_DIAG_SW_DIS_TX | AR5K_DIAG_SW_DIS_RX_5210); 1449 AR5K_DIAG_SW_DIS_TX_5210 | AR5K_DIAG_SW_DIS_RX_5210);
1261 beacon = ath5k_hw_reg_read(ah, AR5K_BEACON_5210); 1450 beacon = ath5k_hw_reg_read(ah, AR5K_BEACON_5210);
1262 ath5k_hw_reg_write(ah, beacon & ~AR5K_BEACON_ENABLE, AR5K_BEACON_5210); 1451 ath5k_hw_reg_write(ah, beacon & ~AR5K_BEACON_ENABLE, AR5K_BEACON_5210);
1263 1452
@@ -1336,7 +1525,7 @@ static int ath5k_hw_rf5110_calibrate(struct ath5k_hw *ah,
1336 * Re-enable RX/TX and beacons 1525 * Re-enable RX/TX and beacons
1337 */ 1526 */
1338 AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW_5210, 1527 AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW_5210,
1339 AR5K_DIAG_SW_DIS_TX | AR5K_DIAG_SW_DIS_RX_5210); 1528 AR5K_DIAG_SW_DIS_TX_5210 | AR5K_DIAG_SW_DIS_RX_5210);
1340 ath5k_hw_reg_write(ah, beacon, AR5K_BEACON_5210); 1529 ath5k_hw_reg_write(ah, beacon, AR5K_BEACON_5210);
1341 1530
1342 return 0; 1531 return 0;
@@ -1377,7 +1566,7 @@ ath5k_hw_rf511x_iq_calibrate(struct ath5k_hw *ah)
1377 1566
1378 /* protect against divide by 0 and loss of sign bits */ 1567 /* protect against divide by 0 and loss of sign bits */
1379 if (i_coffd == 0 || q_coffd < 2) 1568 if (i_coffd == 0 || q_coffd < 2)
1380 return -1; 1569 return 0;
1381 1570
1382 i_coff = (-iq_corr) / i_coffd; 1571 i_coff = (-iq_corr) / i_coffd;
1383 i_coff = clamp(i_coff, -32, 31); /* signed 6 bit */ 1572 i_coff = clamp(i_coff, -32, 31); /* signed 6 bit */
@@ -1424,31 +1613,12 @@ int ath5k_hw_phy_calibrate(struct ath5k_hw *ah,
1424 return ret; 1613 return ret;
1425} 1614}
1426 1615
1616
1427/***************************\ 1617/***************************\
1428* Spur mitigation functions * 1618* Spur mitigation functions *
1429\***************************/ 1619\***************************/
1430 1620
1431bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah, 1621static void
1432 struct ieee80211_channel *channel)
1433{
1434 u8 refclk_freq;
1435
1436 if ((ah->ah_radio == AR5K_RF5112) ||
1437 (ah->ah_radio == AR5K_RF5413) ||
1438 (ah->ah_mac_version == (AR5K_SREV_AR2417 >> 4)))
1439 refclk_freq = 40;
1440 else
1441 refclk_freq = 32;
1442
1443 if ((channel->center_freq % refclk_freq != 0) &&
1444 ((channel->center_freq % refclk_freq < 10) ||
1445 (channel->center_freq % refclk_freq > 22)))
1446 return true;
1447 else
1448 return false;
1449}
1450
1451void
1452ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah, 1622ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah,
1453 struct ieee80211_channel *channel) 1623 struct ieee80211_channel *channel)
1454{ 1624{
@@ -1477,7 +1647,7 @@ ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah,
1477 spur_chan_fbin = AR5K_EEPROM_NO_SPUR; 1647 spur_chan_fbin = AR5K_EEPROM_NO_SPUR;
1478 spur_detection_window = AR5K_SPUR_CHAN_WIDTH; 1648 spur_detection_window = AR5K_SPUR_CHAN_WIDTH;
1479 /* XXX: Half/Quarter channels ?*/ 1649 /* XXX: Half/Quarter channels ?*/
1480 if (channel->hw_value & CHANNEL_TURBO) 1650 if (ah->ah_bwmode == AR5K_BWMODE_40MHZ)
1481 spur_detection_window *= 2; 1651 spur_detection_window *= 2;
1482 1652
1483 for (i = 0; i < AR5K_EEPROM_N_SPUR_CHANS; i++) { 1653 for (i = 0; i < AR5K_EEPROM_N_SPUR_CHANS; i++) {
@@ -1506,32 +1676,43 @@ ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah,
1506 * Calculate deltas: 1676 * Calculate deltas:
1507 * spur_freq_sigma_delta -> spur_offset / sample_freq << 21 1677 * spur_freq_sigma_delta -> spur_offset / sample_freq << 21
1508 * spur_delta_phase -> spur_offset / chip_freq << 11 1678 * spur_delta_phase -> spur_offset / chip_freq << 11
1509 * Note: Both values have 100KHz resolution 1679 * Note: Both values have 100Hz resolution
1510 */ 1680 */
1511 /* XXX: Half/Quarter rate channels ? */ 1681 switch (ah->ah_bwmode) {
1512 switch (channel->hw_value) { 1682 case AR5K_BWMODE_40MHZ:
1513 case CHANNEL_A:
1514 /* Both sample_freq and chip_freq are 40MHz */
1515 spur_delta_phase = (spur_offset << 17) / 25;
1516 spur_freq_sigma_delta = (spur_delta_phase >> 10);
1517 symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz;
1518 break;
1519 case CHANNEL_G:
1520 /* sample_freq -> 40MHz chip_freq -> 44MHz
1521 * (for b compatibility) */
1522 spur_freq_sigma_delta = (spur_offset << 8) / 55;
1523 spur_delta_phase = (spur_offset << 17) / 25;
1524 symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz;
1525 break;
1526 case CHANNEL_T:
1527 case CHANNEL_TG:
1528 /* Both sample_freq and chip_freq are 80MHz */ 1683 /* Both sample_freq and chip_freq are 80MHz */
1529 spur_delta_phase = (spur_offset << 16) / 25; 1684 spur_delta_phase = (spur_offset << 16) / 25;
1530 spur_freq_sigma_delta = (spur_delta_phase >> 10); 1685 spur_freq_sigma_delta = (spur_delta_phase >> 10);
1531 symbol_width = AR5K_SPUR_SYMBOL_WIDTH_TURBO_100Hz; 1686 symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz * 2;
1532 break; 1687 break;
1688 case AR5K_BWMODE_10MHZ:
1689 /* Both sample_freq and chip_freq are 20MHz (?) */
1690 spur_delta_phase = (spur_offset << 18) / 25;
1691 spur_freq_sigma_delta = (spur_delta_phase >> 10);
1692 symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz / 2;
1693 case AR5K_BWMODE_5MHZ:
1694 /* Both sample_freq and chip_freq are 10MHz (?) */
1695 spur_delta_phase = (spur_offset << 19) / 25;
1696 spur_freq_sigma_delta = (spur_delta_phase >> 10);
1697 symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz / 4;
1533 default: 1698 default:
1534 return; 1699 if (channel->hw_value == CHANNEL_A) {
1700 /* Both sample_freq and chip_freq are 40MHz */
1701 spur_delta_phase = (spur_offset << 17) / 25;
1702 spur_freq_sigma_delta =
1703 (spur_delta_phase >> 10);
1704 symbol_width =
1705 AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz;
1706 } else {
1707 /* sample_freq -> 40MHz chip_freq -> 44MHz
1708 * (for b compatibility) */
1709 spur_delta_phase = (spur_offset << 17) / 25;
1710 spur_freq_sigma_delta =
1711 (spur_offset << 8) / 55;
1712 symbol_width =
1713 AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz;
1714 }
1715 break;
1535 } 1716 }
1536 1717
1537 /* Calculate pilot and magnitude masks */ 1718 /* Calculate pilot and magnitude masks */
@@ -1582,7 +1763,7 @@ ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah,
1582 else if (curr_sym_off >= 31 && curr_sym_off <= 46) 1763 else if (curr_sym_off >= 31 && curr_sym_off <= 46)
1583 mag_mask[2] |= 1764 mag_mask[2] |=
1584 plt_mag_map << (curr_sym_off - 31) * 2; 1765 plt_mag_map << (curr_sym_off - 31) * 2;
1585 else if (curr_sym_off >= 46 && curr_sym_off <= 53) 1766 else if (curr_sym_off >= 47 && curr_sym_off <= 53)
1586 mag_mask[3] |= 1767 mag_mask[3] |=
1587 plt_mag_map << (curr_sym_off - 47) * 2; 1768 plt_mag_map << (curr_sym_off - 47) * 2;
1588 1769
@@ -1671,63 +1852,6 @@ ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah,
1671 } 1852 }
1672} 1853}
1673 1854
1674/********************\
1675 Misc PHY functions
1676\********************/
1677
1678int ath5k_hw_phy_disable(struct ath5k_hw *ah)
1679{
1680 /*Just a try M.F.*/
1681 ath5k_hw_reg_write(ah, AR5K_PHY_ACT_DISABLE, AR5K_PHY_ACT);
1682
1683 return 0;
1684}
1685
1686/*
1687 * Get the PHY Chip revision
1688 */
1689u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, unsigned int chan)
1690{
1691 unsigned int i;
1692 u32 srev;
1693 u16 ret;
1694
1695 /*
1696 * Set the radio chip access register
1697 */
1698 switch (chan) {
1699 case CHANNEL_2GHZ:
1700 ath5k_hw_reg_write(ah, AR5K_PHY_SHIFT_2GHZ, AR5K_PHY(0));
1701 break;
1702 case CHANNEL_5GHZ:
1703 ath5k_hw_reg_write(ah, AR5K_PHY_SHIFT_5GHZ, AR5K_PHY(0));
1704 break;
1705 default:
1706 return 0;
1707 }
1708
1709 mdelay(2);
1710
1711 /* ...wait until PHY is ready and read the selected radio revision */
1712 ath5k_hw_reg_write(ah, 0x00001c16, AR5K_PHY(0x34));
1713
1714 for (i = 0; i < 8; i++)
1715 ath5k_hw_reg_write(ah, 0x00010000, AR5K_PHY(0x20));
1716
1717 if (ah->ah_version == AR5K_AR5210) {
1718 srev = ath5k_hw_reg_read(ah, AR5K_PHY(256) >> 28) & 0xf;
1719 ret = (u16)ath5k_hw_bitswap(srev, 4) + 1;
1720 } else {
1721 srev = (ath5k_hw_reg_read(ah, AR5K_PHY(0x100)) >> 24) & 0xff;
1722 ret = (u16)ath5k_hw_bitswap(((srev & 0xf0) >> 4) |
1723 ((srev & 0x0f) << 4), 8);
1724 }
1725
1726 /* Reset to the 5GHz mode */
1727 ath5k_hw_reg_write(ah, AR5K_PHY_SHIFT_5GHZ, AR5K_PHY(0));
1728
1729 return ret;
1730}
1731 1855
1732/*****************\ 1856/*****************\
1733* Antenna control * 1857* Antenna control *
@@ -1821,7 +1945,8 @@ ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode)
1821 struct ieee80211_channel *channel = ah->ah_current_channel; 1945 struct ieee80211_channel *channel = ah->ah_current_channel;
1822 bool use_def_for_tx, update_def_on_tx, use_def_for_rts, fast_div; 1946 bool use_def_for_tx, update_def_on_tx, use_def_for_rts, fast_div;
1823 bool use_def_for_sg; 1947 bool use_def_for_sg;
1824 u8 def_ant, tx_ant, ee_mode; 1948 int ee_mode;
1949 u8 def_ant, tx_ant;
1825 u32 sta_id1 = 0; 1950 u32 sta_id1 = 0;
1826 1951
1827 /* if channel is not initialized yet we can't set the antennas 1952 /* if channel is not initialized yet we can't set the antennas
@@ -1833,20 +1958,8 @@ ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode)
1833 1958
1834 def_ant = ah->ah_def_ant; 1959 def_ant = ah->ah_def_ant;
1835 1960
1836 switch (channel->hw_value & CHANNEL_MODES) { 1961 ee_mode = ath5k_eeprom_mode_from_channel(channel);
1837 case CHANNEL_A: 1962 if (ee_mode < 0) {
1838 case CHANNEL_T:
1839 case CHANNEL_XR:
1840 ee_mode = AR5K_EEPROM_MODE_11A;
1841 break;
1842 case CHANNEL_G:
1843 case CHANNEL_TG:
1844 ee_mode = AR5K_EEPROM_MODE_11G;
1845 break;
1846 case CHANNEL_B:
1847 ee_mode = AR5K_EEPROM_MODE_11B;
1848 break;
1849 default:
1850 ATH5K_ERR(ah->ah_sc, 1963 ATH5K_ERR(ah->ah_sc,
1851 "invalid channel: %d\n", channel->center_freq); 1964 "invalid channel: %d\n", channel->center_freq);
1852 return; 1965 return;
@@ -2088,7 +2201,7 @@ ath5k_create_power_curve(s16 pmin, s16 pmax,
2088/* 2201/*
2089 * Get the surrounding per-channel power calibration piers 2202 * Get the surrounding per-channel power calibration piers
2090 * for a given frequency so that we can interpolate between 2203 * for a given frequency so that we can interpolate between
2091 * them and come up with an apropriate dataset for our current 2204 * them and come up with an appropriate dataset for our current
2092 * channel. 2205 * channel.
2093 */ 2206 */
2094static void 2207static void
@@ -2274,20 +2387,20 @@ ath5k_get_max_ctl_power(struct ath5k_hw *ah,
2274 2387
2275 switch (channel->hw_value & CHANNEL_MODES) { 2388 switch (channel->hw_value & CHANNEL_MODES) {
2276 case CHANNEL_A: 2389 case CHANNEL_A:
2277 ctl_mode |= AR5K_CTL_11A; 2390 if (ah->ah_bwmode == AR5K_BWMODE_40MHZ)
2391 ctl_mode |= AR5K_CTL_TURBO;
2392 else
2393 ctl_mode |= AR5K_CTL_11A;
2278 break; 2394 break;
2279 case CHANNEL_G: 2395 case CHANNEL_G:
2280 ctl_mode |= AR5K_CTL_11G; 2396 if (ah->ah_bwmode == AR5K_BWMODE_40MHZ)
2397 ctl_mode |= AR5K_CTL_TURBOG;
2398 else
2399 ctl_mode |= AR5K_CTL_11G;
2281 break; 2400 break;
2282 case CHANNEL_B: 2401 case CHANNEL_B:
2283 ctl_mode |= AR5K_CTL_11B; 2402 ctl_mode |= AR5K_CTL_11B;
2284 break; 2403 break;
2285 case CHANNEL_T:
2286 ctl_mode |= AR5K_CTL_TURBO;
2287 break;
2288 case CHANNEL_TG:
2289 ctl_mode |= AR5K_CTL_TURBOG;
2290 break;
2291 case CHANNEL_XR: 2404 case CHANNEL_XR:
2292 /* Fall through */ 2405 /* Fall through */
2293 default: 2406 default:
@@ -2481,7 +2594,7 @@ ath5k_combine_linear_pcdac_curves(struct ath5k_hw *ah, s16* table_min,
2481 2594
2482/* Write PCDAC values on hw */ 2595/* Write PCDAC values on hw */
2483static void 2596static void
2484ath5k_setup_pcdac_table(struct ath5k_hw *ah) 2597ath5k_write_pcdac_table(struct ath5k_hw *ah)
2485{ 2598{
2486 u8 *pcdac_out = ah->ah_txpower.txp_pd_table; 2599 u8 *pcdac_out = ah->ah_txpower.txp_pd_table;
2487 int i; 2600 int i;
@@ -2505,7 +2618,7 @@ ath5k_setup_pcdac_table(struct ath5k_hw *ah)
2505/* 2618/*
2506 * Set the gain boundaries and create final Power to PDADC table 2619 * Set the gain boundaries and create final Power to PDADC table
2507 * 2620 *
2508 * We can have up to 4 pd curves, we need to do a simmilar process 2621 * We can have up to 4 pd curves, we need to do a similar process
2509 * as we do for RF5112. This time we don't have an edge_flag but we 2622 * as we do for RF5112. This time we don't have an edge_flag but we
2510 * set the gain boundaries on a separate register. 2623 * set the gain boundaries on a separate register.
2511 */ 2624 */
@@ -2630,10 +2743,12 @@ ath5k_combine_pwr_to_pdadc_curves(struct ath5k_hw *ah,
2630 2743
2631/* Write PDADC values on hw */ 2744/* Write PDADC values on hw */
2632static void 2745static void
2633ath5k_setup_pwr_to_pdadc_table(struct ath5k_hw *ah, 2746ath5k_write_pwr_to_pdadc_table(struct ath5k_hw *ah, u8 ee_mode)
2634 u8 pdcurves, u8 *pdg_to_idx)
2635{ 2747{
2748 struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
2636 u8 *pdadc_out = ah->ah_txpower.txp_pd_table; 2749 u8 *pdadc_out = ah->ah_txpower.txp_pd_table;
2750 u8 *pdg_to_idx = ee->ee_pdc_to_idx[ee_mode];
2751 u8 pdcurves = ee->ee_pd_gains[ee_mode];
2637 u32 reg; 2752 u32 reg;
2638 u8 i; 2753 u8 i;
2639 2754
@@ -2711,13 +2826,13 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
2711 u32 target = channel->center_freq; 2826 u32 target = channel->center_freq;
2712 int pdg, i; 2827 int pdg, i;
2713 2828
2714 /* Get surounding freq piers for this channel */ 2829 /* Get surrounding freq piers for this channel */
2715 ath5k_get_chan_pcal_surrounding_piers(ah, channel, 2830 ath5k_get_chan_pcal_surrounding_piers(ah, channel,
2716 &pcinfo_L, 2831 &pcinfo_L,
2717 &pcinfo_R); 2832 &pcinfo_R);
2718 2833
2719 /* Loop over pd gain curves on 2834 /* Loop over pd gain curves on
2720 * surounding freq piers by index */ 2835 * surrounding freq piers by index */
2721 for (pdg = 0; pdg < ee->ee_pd_gains[ee_mode]; pdg++) { 2836 for (pdg = 0; pdg < ee->ee_pd_gains[ee_mode]; pdg++) {
2722 2837
2723 /* Fill curves in reverse order 2838 /* Fill curves in reverse order
@@ -2808,7 +2923,7 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
2808 } 2923 }
2809 2924
2810 /* Interpolate between curves 2925 /* Interpolate between curves
2811 * of surounding freq piers to 2926 * of surrounding freq piers to
2812 * get the final curve for this 2927 * get the final curve for this
2813 * pd gain. Re-use tmpL for interpolation 2928 * pd gain. Re-use tmpL for interpolation
2814 * output */ 2929 * output */
@@ -2832,7 +2947,7 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
2832 2947
2833 /* Fill min and max power levels for this 2948 /* Fill min and max power levels for this
2834 * channel by interpolating the values on 2949 * channel by interpolating the values on
2835 * surounding channels to complete the dataset */ 2950 * surrounding channels to complete the dataset */
2836 ah->ah_txpower.txp_min_pwr = ath5k_get_interpolated_value(target, 2951 ah->ah_txpower.txp_min_pwr = ath5k_get_interpolated_value(target,
2837 (s16) pcinfo_L->freq, 2952 (s16) pcinfo_L->freq,
2838 (s16) pcinfo_R->freq, 2953 (s16) pcinfo_R->freq,
@@ -2843,8 +2958,7 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
2843 (s16) pcinfo_R->freq, 2958 (s16) pcinfo_R->freq,
2844 pcinfo_L->max_pwr, pcinfo_R->max_pwr); 2959 pcinfo_L->max_pwr, pcinfo_R->max_pwr);
2845 2960
2846 /* We are ready to go, fill PCDAC/PDADC 2961 /* Fill PCDAC/PDADC table */
2847 * table and write settings on hardware */
2848 switch (type) { 2962 switch (type) {
2849 case AR5K_PWRTABLE_LINEAR_PCDAC: 2963 case AR5K_PWRTABLE_LINEAR_PCDAC:
2850 /* For RF5112 we can have one or two curves 2964 /* For RF5112 we can have one or two curves
@@ -2857,9 +2971,6 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
2857 * match max power value with max 2971 * match max power value with max
2858 * table index */ 2972 * table index */
2859 ah->ah_txpower.txp_offset = 64 - (table_max[0] / 2); 2973 ah->ah_txpower.txp_offset = 64 - (table_max[0] / 2);
2860
2861 /* Write settings on hw */
2862 ath5k_setup_pcdac_table(ah);
2863 break; 2974 break;
2864 case AR5K_PWRTABLE_PWR_TO_PCDAC: 2975 case AR5K_PWRTABLE_PWR_TO_PCDAC:
2865 /* We are done for RF5111 since it has only 2976 /* We are done for RF5111 since it has only
@@ -2869,9 +2980,6 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
2869 /* No rate powertable adjustment for RF5111 */ 2980 /* No rate powertable adjustment for RF5111 */
2870 ah->ah_txpower.txp_min_idx = 0; 2981 ah->ah_txpower.txp_min_idx = 0;
2871 ah->ah_txpower.txp_offset = 0; 2982 ah->ah_txpower.txp_offset = 0;
2872
2873 /* Write settings on hw */
2874 ath5k_setup_pcdac_table(ah);
2875 break; 2983 break;
2876 case AR5K_PWRTABLE_PWR_TO_PDADC: 2984 case AR5K_PWRTABLE_PWR_TO_PDADC:
2877 /* Set PDADC boundaries and fill 2985 /* Set PDADC boundaries and fill
@@ -2879,9 +2987,6 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
2879 ath5k_combine_pwr_to_pdadc_curves(ah, table_min, table_max, 2987 ath5k_combine_pwr_to_pdadc_curves(ah, table_min, table_max,
2880 ee->ee_pd_gains[ee_mode]); 2988 ee->ee_pd_gains[ee_mode]);
2881 2989
2882 /* Write settings on hw */
2883 ath5k_setup_pwr_to_pdadc_table(ah, pdg, pdg_curve_to_idx);
2884
2885 /* Set txp.offset, note that table_min 2990 /* Set txp.offset, note that table_min
2886 * can be negative */ 2991 * can be negative */
2887 ah->ah_txpower.txp_offset = table_min[0]; 2992 ah->ah_txpower.txp_offset = table_min[0];
@@ -2890,9 +2995,20 @@ ath5k_setup_channel_powertable(struct ath5k_hw *ah,
2890 return -EINVAL; 2995 return -EINVAL;
2891 } 2996 }
2892 2997
2998 ah->ah_txpower.txp_setup = true;
2999
2893 return 0; 3000 return 0;
2894} 3001}
2895 3002
3003/* Write power table for current channel to hw */
3004static void
3005ath5k_write_channel_powertable(struct ath5k_hw *ah, u8 ee_mode, u8 type)
3006{
3007 if (type == AR5K_PWRTABLE_PWR_TO_PDADC)
3008 ath5k_write_pwr_to_pdadc_table(ah, ee_mode);
3009 else
3010 ath5k_write_pcdac_table(ah);
3011}
2896 3012
2897/* 3013/*
2898 * Per-rate tx power setting 3014 * Per-rate tx power setting
@@ -2981,19 +3097,21 @@ ath5k_setup_rate_powertable(struct ath5k_hw *ah, u16 max_pwr,
2981 3097
2982 /* Min/max in 0.25dB units */ 3098 /* Min/max in 0.25dB units */
2983 ah->ah_txpower.txp_min_pwr = 2 * rates[7]; 3099 ah->ah_txpower.txp_min_pwr = 2 * rates[7];
2984 ah->ah_txpower.txp_max_pwr = 2 * rates[0]; 3100 ah->ah_txpower.txp_cur_pwr = 2 * rates[0];
2985 ah->ah_txpower.txp_ofdm = rates[7]; 3101 ah->ah_txpower.txp_ofdm = rates[7];
2986} 3102}
2987 3103
2988 3104
2989/* 3105/*
2990 * Set transmition power 3106 * Set transmission power
2991 */ 3107 */
2992int 3108static int
2993ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel, 3109ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
2994 u8 ee_mode, u8 txpower) 3110 u8 txpower)
2995{ 3111{
2996 struct ath5k_rate_pcal_info rate_info; 3112 struct ath5k_rate_pcal_info rate_info;
3113 struct ieee80211_channel *curr_channel = ah->ah_current_channel;
3114 int ee_mode;
2997 u8 type; 3115 u8 type;
2998 int ret; 3116 int ret;
2999 3117
@@ -3002,14 +3120,18 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
3002 return -EINVAL; 3120 return -EINVAL;
3003 } 3121 }
3004 3122
3005 /* Reset TX power values */ 3123 ee_mode = ath5k_eeprom_mode_from_channel(channel);
3006 memset(&ah->ah_txpower, 0, sizeof(ah->ah_txpower)); 3124 if (ee_mode < 0) {
3007 ah->ah_txpower.txp_tpc = AR5K_TUNE_TPC_TXPOWER; 3125 ATH5K_ERR(ah->ah_sc,
3008 ah->ah_txpower.txp_min_pwr = 0; 3126 "invalid channel: %d\n", channel->center_freq);
3009 ah->ah_txpower.txp_max_pwr = AR5K_TUNE_MAX_TXPOWER; 3127 return -EINVAL;
3128 }
3010 3129
3011 /* Initialize TX power table */ 3130 /* Initialize TX power table */
3012 switch (ah->ah_radio) { 3131 switch (ah->ah_radio) {
3132 case AR5K_RF5110:
3133 /* TODO */
3134 return 0;
3013 case AR5K_RF5111: 3135 case AR5K_RF5111:
3014 type = AR5K_PWRTABLE_PWR_TO_PCDAC; 3136 type = AR5K_PWRTABLE_PWR_TO_PCDAC;
3015 break; 3137 break;
@@ -3027,24 +3149,37 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
3027 return -EINVAL; 3149 return -EINVAL;
3028 } 3150 }
3029 3151
3030 /* FIXME: Only on channel/mode change */ 3152 /*
3031 ret = ath5k_setup_channel_powertable(ah, channel, ee_mode, type); 3153 * If we don't change channel/mode skip tx powertable calculation
3032 if (ret) 3154 * and use the cached one.
3033 return ret; 3155 */
3156 if (!ah->ah_txpower.txp_setup ||
3157 (channel->hw_value != curr_channel->hw_value) ||
3158 (channel->center_freq != curr_channel->center_freq)) {
3159 /* Reset TX power values */
3160 memset(&ah->ah_txpower, 0, sizeof(ah->ah_txpower));
3161 ah->ah_txpower.txp_tpc = AR5K_TUNE_TPC_TXPOWER;
3162
3163 /* Calculate the powertable */
3164 ret = ath5k_setup_channel_powertable(ah, channel,
3165 ee_mode, type);
3166 if (ret)
3167 return ret;
3168 }
3169
3170 /* Write table on hw */
3171 ath5k_write_channel_powertable(ah, ee_mode, type);
3034 3172
3035 /* Limit max power if we have a CTL available */ 3173 /* Limit max power if we have a CTL available */
3036 ath5k_get_max_ctl_power(ah, channel); 3174 ath5k_get_max_ctl_power(ah, channel);
3037 3175
3038 /* FIXME: Tx power limit for this regdomain
3039 * XXX: Mac80211/CRDA will do that anyway ? */
3040
3041 /* FIXME: Antenna reduction stuff */ 3176 /* FIXME: Antenna reduction stuff */
3042 3177
3043 /* FIXME: Limit power on turbo modes */ 3178 /* FIXME: Limit power on turbo modes */
3044 3179
3045 /* FIXME: TPC scale reduction */ 3180 /* FIXME: TPC scale reduction */
3046 3181
3047 /* Get surounding channels for per-rate power table 3182 /* Get surrounding channels for per-rate power table
3048 * calibration */ 3183 * calibration */
3049 ath5k_get_rate_pcal_data(ah, channel, &rate_info); 3184 ath5k_get_rate_pcal_data(ah, channel, &rate_info);
3050 3185
@@ -3088,31 +3223,223 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
3088 3223
3089int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower) 3224int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower)
3090{ 3225{
3091 /*Just a try M.F.*/ 3226 ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_TXPOWER,
3092 struct ieee80211_channel *channel = ah->ah_current_channel; 3227 "changing txpower to %d\n", txpower);
3093 u8 ee_mode;
3094 3228
3095 switch (channel->hw_value & CHANNEL_MODES) { 3229 return ath5k_hw_txpower(ah, ah->ah_current_channel, txpower);
3096 case CHANNEL_A: 3230}
3097 case CHANNEL_T: 3231
3098 case CHANNEL_XR: 3232/*************\
3099 ee_mode = AR5K_EEPROM_MODE_11A; 3233 Init function
3100 break; 3234\*************/
3101 case CHANNEL_G: 3235
3102 case CHANNEL_TG: 3236int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
3103 ee_mode = AR5K_EEPROM_MODE_11G; 3237 u8 mode, bool fast)
3104 break; 3238{
3105 case CHANNEL_B: 3239 struct ieee80211_channel *curr_channel;
3106 ee_mode = AR5K_EEPROM_MODE_11B; 3240 int ret, i;
3107 break; 3241 u32 phy_tst1;
3108 default: 3242 ret = 0;
3109 ATH5K_ERR(ah->ah_sc, 3243
3110 "invalid channel: %d\n", channel->center_freq); 3244 /*
3245 * Sanity check for fast flag
3246 * Don't try fast channel change when changing modulation
3247 * mode/band. We check for chip compatibility on
3248 * ath5k_hw_reset.
3249 */
3250 curr_channel = ah->ah_current_channel;
3251 if (fast && (channel->hw_value != curr_channel->hw_value))
3111 return -EINVAL; 3252 return -EINVAL;
3253
3254 /*
3255 * On fast channel change we only set the synth parameters
3256 * while PHY is running, enable calibration and skip the rest.
3257 */
3258 if (fast) {
3259 AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_RFBUS_REQ,
3260 AR5K_PHY_RFBUS_REQ_REQUEST);
3261 for (i = 0; i < 100; i++) {
3262 if (ath5k_hw_reg_read(ah, AR5K_PHY_RFBUS_GRANT))
3263 break;
3264 udelay(5);
3265 }
3266 /* Failed */
3267 if (i >= 100)
3268 return -EIO;
3269
3270 /* Set channel and wait for synth */
3271 ret = ath5k_hw_channel(ah, channel);
3272 if (ret)
3273 return ret;
3274
3275 ath5k_hw_wait_for_synth(ah, channel);
3112 } 3276 }
3113 3277
3114 ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_TXPOWER, 3278 /*
3115 "changing txpower to %d\n", txpower); 3279 * Set TX power
3280 *
3281 * Note: We need to do that before we set
3282 * RF buffer settings on 5211/5212+ so that we
3283 * properly set curve indices.
3284 */
3285 ret = ath5k_hw_txpower(ah, channel, ah->ah_txpower.txp_cur_pwr ?
3286 ah->ah_txpower.txp_cur_pwr / 2 : AR5K_TUNE_MAX_TXPOWER);
3287 if (ret)
3288 return ret;
3289
3290 /* Write OFDM timings on 5212*/
3291 if (ah->ah_version == AR5K_AR5212 &&
3292 channel->hw_value & CHANNEL_OFDM) {
3293
3294 ret = ath5k_hw_write_ofdm_timings(ah, channel);
3295 if (ret)
3296 return ret;
3297
3298 /* Spur info is available only from EEPROM versions
3299 * greater than 5.3, but the EEPROM routines will use
3300 * static values for older versions */
3301 if (ah->ah_mac_srev >= AR5K_SREV_AR5424)
3302 ath5k_hw_set_spur_mitigation_filter(ah,
3303 channel);
3304 }
3305
3306 /* If we used fast channel switching
3307 * we are done, release RF bus and
3308 * fire up NF calibration.
3309 *
3310 * Note: Only NF calibration due to
3311 * channel change, not AGC calibration
3312 * since AGC is still running !
3313 */
3314 if (fast) {
3315 /*
3316 * Release RF Bus grant
3317 */
3318 AR5K_REG_DISABLE_BITS(ah, AR5K_PHY_RFBUS_REQ,
3319 AR5K_PHY_RFBUS_REQ_REQUEST);
3320
3321 /*
3322 * Start NF calibration
3323 */
3324 AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_AGCCTL,
3325 AR5K_PHY_AGCCTL_NF);
3116 3326
3117 return ath5k_hw_txpower(ah, channel, ee_mode, txpower); 3327 return ret;
3328 }
3329
3330 /*
3331 * For 5210 we do all initialization using
3332 * initvals, so we don't have to modify
3333 * any settings (5210 also only supports
3334 * a/aturbo modes)
3335 */
3336 if (ah->ah_version != AR5K_AR5210) {
3337
3338 /*
3339 * Write initial RF gain settings
3340 * This should work for both 5111/5112
3341 */
3342 ret = ath5k_hw_rfgain_init(ah, channel->band);
3343 if (ret)
3344 return ret;
3345
3346 mdelay(1);
3347
3348 /*
3349 * Write RF buffer
3350 */
3351 ret = ath5k_hw_rfregs_init(ah, channel, mode);
3352 if (ret)
3353 return ret;
3354
3355 /*Enable/disable 802.11b mode on 5111
3356 (enable 2111 frequency converter + CCK)*/
3357 if (ah->ah_radio == AR5K_RF5111) {
3358 if (mode == AR5K_MODE_11B)
3359 AR5K_REG_ENABLE_BITS(ah, AR5K_TXCFG,
3360 AR5K_TXCFG_B_MODE);
3361 else
3362 AR5K_REG_DISABLE_BITS(ah, AR5K_TXCFG,
3363 AR5K_TXCFG_B_MODE);
3364 }
3365
3366 } else if (ah->ah_version == AR5K_AR5210) {
3367 mdelay(1);
3368 /* Disable phy and wait */
3369 ath5k_hw_reg_write(ah, AR5K_PHY_ACT_DISABLE, AR5K_PHY_ACT);
3370 mdelay(1);
3371 }
3372
3373 /* Set channel on PHY */
3374 ret = ath5k_hw_channel(ah, channel);
3375 if (ret)
3376 return ret;
3377
3378 /*
3379 * Enable the PHY and wait until completion
3380 * This includes BaseBand and Synthesizer
3381 * activation.
3382 */
3383 ath5k_hw_reg_write(ah, AR5K_PHY_ACT_ENABLE, AR5K_PHY_ACT);
3384
3385 ath5k_hw_wait_for_synth(ah, channel);
3386
3387 /*
3388 * Perform ADC test to see if baseband is ready
3389 * Set tx hold and check adc test register
3390 */
3391 phy_tst1 = ath5k_hw_reg_read(ah, AR5K_PHY_TST1);
3392 ath5k_hw_reg_write(ah, AR5K_PHY_TST1_TXHOLD, AR5K_PHY_TST1);
3393 for (i = 0; i <= 20; i++) {
3394 if (!(ath5k_hw_reg_read(ah, AR5K_PHY_ADC_TEST) & 0x10))
3395 break;
3396 udelay(200);
3397 }
3398 ath5k_hw_reg_write(ah, phy_tst1, AR5K_PHY_TST1);
3399
3400 /*
3401 * Start automatic gain control calibration
3402 *
3403 * During AGC calibration RX path is re-routed to
3404 * a power detector so we don't receive anything.
3405 *
3406 * This method is used to calibrate some static offsets
3407 * used together with on-the fly I/Q calibration (the
3408 * one performed via ath5k_hw_phy_calibrate), which doesn't
3409 * interrupt rx path.
3410 *
3411 * While rx path is re-routed to the power detector we also
3412 * start a noise floor calibration to measure the
3413 * card's noise floor (the noise we measure when we are not
3414 * transmitting or receiving anything).
3415 *
3416 * If we are in a noisy environment, AGC calibration may time
3417 * out and/or noise floor calibration might timeout.
3418 */
3419 AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_AGCCTL,
3420 AR5K_PHY_AGCCTL_CAL | AR5K_PHY_AGCCTL_NF);
3421
3422 /* At the same time start I/Q calibration for QAM constellation
3423 * -no need for CCK- */
3424 ah->ah_calibration = false;
3425 if (!(mode == AR5K_MODE_11B)) {
3426 ah->ah_calibration = true;
3427 AR5K_REG_WRITE_BITS(ah, AR5K_PHY_IQ,
3428 AR5K_PHY_IQ_CAL_NUM_LOG_MAX, 15);
3429 AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_IQ,
3430 AR5K_PHY_IQ_RUN);
3431 }
3432
3433 /* Wait for gain calibration to finish (we check for I/Q calibration
3434 * during ath5k_phy_calibrate) */
3435 if (ath5k_hw_register_timeout(ah, AR5K_PHY_AGCCTL,
3436 AR5K_PHY_AGCCTL_CAL, 0, false)) {
3437 ATH5K_ERR(ah->ah_sc, "gain calibration timeout (%uMHz)\n",
3438 channel->center_freq);
3439 }
3440
3441 /* Restore antenna mode */
3442 ath5k_hw_set_antenna_mode(ah, ah->ah_ant_mode);
3443
3444 return ret;
3118} 3445}
generated by cgit v1.2.2 (git 2.25.0) at 2026-04-26 15:35:50 -0400