diff options
author | David S. Miller <davem@davemloft.net> | 2009-12-29 22:44:25 -0500 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2009-12-29 22:44:25 -0500 |
commit | 7f9d3577e2603ca279c3176b696eba392f21cbe2 (patch) | |
tree | e2135eddba600910cdebb54c8b01de53473ecefb /drivers/net/wireless/zd1211rw | |
parent | 96c5340147584481ef0c0afbb5423f7563c1d24a (diff) | |
parent | 55afc80b2ab100618c17af77915f75307b6bd5d1 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Diffstat (limited to 'drivers/net/wireless/zd1211rw')
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_chip.c | 140 | ||||
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_chip.h | 3 | ||||
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_mac.c | 3 |
3 files changed, 0 insertions, 146 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c index dfa1b9bc22c..7ca95c414fa 100644 --- a/drivers/net/wireless/zd1211rw/zd_chip.c +++ b/drivers/net/wireless/zd1211rw/zd_chip.c | |||
@@ -1325,151 +1325,11 @@ int zd_chip_set_basic_rates(struct zd_chip *chip, u16 cr_rates) | |||
1325 | return r; | 1325 | return r; |
1326 | } | 1326 | } |
1327 | 1327 | ||
1328 | static int ofdm_qual_db(u8 status_quality, u8 zd_rate, unsigned int size) | ||
1329 | { | ||
1330 | static const u16 constants[] = { | ||
1331 | 715, 655, 585, 540, 470, 410, 360, 315, | ||
1332 | 270, 235, 205, 175, 150, 125, 105, 85, | ||
1333 | 65, 50, 40, 25, 15 | ||
1334 | }; | ||
1335 | |||
1336 | int i; | ||
1337 | u32 x; | ||
1338 | |||
1339 | /* It seems that their quality parameter is somehow per signal | ||
1340 | * and is now transferred per bit. | ||
1341 | */ | ||
1342 | switch (zd_rate) { | ||
1343 | case ZD_OFDM_RATE_6M: | ||
1344 | case ZD_OFDM_RATE_12M: | ||
1345 | case ZD_OFDM_RATE_24M: | ||
1346 | size *= 2; | ||
1347 | break; | ||
1348 | case ZD_OFDM_RATE_9M: | ||
1349 | case ZD_OFDM_RATE_18M: | ||
1350 | case ZD_OFDM_RATE_36M: | ||
1351 | case ZD_OFDM_RATE_54M: | ||
1352 | size *= 4; | ||
1353 | size /= 3; | ||
1354 | break; | ||
1355 | case ZD_OFDM_RATE_48M: | ||
1356 | size *= 3; | ||
1357 | size /= 2; | ||
1358 | break; | ||
1359 | default: | ||
1360 | return -EINVAL; | ||
1361 | } | ||
1362 | |||
1363 | x = (10000 * status_quality)/size; | ||
1364 | for (i = 0; i < ARRAY_SIZE(constants); i++) { | ||
1365 | if (x > constants[i]) | ||
1366 | break; | ||
1367 | } | ||
1368 | |||
1369 | switch (zd_rate) { | ||
1370 | case ZD_OFDM_RATE_6M: | ||
1371 | case ZD_OFDM_RATE_9M: | ||
1372 | i += 3; | ||
1373 | break; | ||
1374 | case ZD_OFDM_RATE_12M: | ||
1375 | case ZD_OFDM_RATE_18M: | ||
1376 | i += 5; | ||
1377 | break; | ||
1378 | case ZD_OFDM_RATE_24M: | ||
1379 | case ZD_OFDM_RATE_36M: | ||
1380 | i += 9; | ||
1381 | break; | ||
1382 | case ZD_OFDM_RATE_48M: | ||
1383 | case ZD_OFDM_RATE_54M: | ||
1384 | i += 15; | ||
1385 | break; | ||
1386 | default: | ||
1387 | return -EINVAL; | ||
1388 | } | ||
1389 | |||
1390 | return i; | ||
1391 | } | ||
1392 | |||
1393 | static int ofdm_qual_percent(u8 status_quality, u8 zd_rate, unsigned int size) | ||
1394 | { | ||
1395 | int r; | ||
1396 | |||
1397 | r = ofdm_qual_db(status_quality, zd_rate, size); | ||
1398 | ZD_ASSERT(r >= 0); | ||
1399 | if (r < 0) | ||
1400 | r = 0; | ||
1401 | |||
1402 | r = (r * 100)/29; | ||
1403 | return r <= 100 ? r : 100; | ||
1404 | } | ||
1405 | |||
1406 | static unsigned int log10times100(unsigned int x) | ||
1407 | { | ||
1408 | static const u8 log10[] = { | ||
1409 | 0, | ||
1410 | 0, 30, 47, 60, 69, 77, 84, 90, 95, 100, | ||
1411 | 104, 107, 111, 114, 117, 120, 123, 125, 127, 130, | ||
1412 | 132, 134, 136, 138, 139, 141, 143, 144, 146, 147, | ||
1413 | 149, 150, 151, 153, 154, 155, 156, 157, 159, 160, | ||
1414 | 161, 162, 163, 164, 165, 166, 167, 168, 169, 169, | ||
1415 | 170, 171, 172, 173, 174, 174, 175, 176, 177, 177, | ||
1416 | 178, 179, 179, 180, 181, 181, 182, 183, 183, 184, | ||
1417 | 185, 185, 186, 186, 187, 188, 188, 189, 189, 190, | ||
1418 | 190, 191, 191, 192, 192, 193, 193, 194, 194, 195, | ||
1419 | 195, 196, 196, 197, 197, 198, 198, 199, 199, 200, | ||
1420 | 200, 200, 201, 201, 202, 202, 202, 203, 203, 204, | ||
1421 | 204, 204, 205, 205, 206, 206, 206, 207, 207, 207, | ||
1422 | 208, 208, 208, 209, 209, 210, 210, 210, 211, 211, | ||
1423 | 211, 212, 212, 212, 213, 213, 213, 213, 214, 214, | ||
1424 | 214, 215, 215, 215, 216, 216, 216, 217, 217, 217, | ||
1425 | 217, 218, 218, 218, 219, 219, 219, 219, 220, 220, | ||
1426 | 220, 220, 221, 221, 221, 222, 222, 222, 222, 223, | ||
1427 | 223, 223, 223, 224, 224, 224, 224, | ||
1428 | }; | ||
1429 | |||
1430 | return x < ARRAY_SIZE(log10) ? log10[x] : 225; | ||
1431 | } | ||
1432 | |||
1433 | enum { | ||
1434 | MAX_CCK_EVM_DB = 45, | ||
1435 | }; | ||
1436 | |||
1437 | static int cck_evm_db(u8 status_quality) | ||
1438 | { | ||
1439 | return (20 * log10times100(status_quality)) / 100; | ||
1440 | } | ||
1441 | |||
1442 | static int cck_snr_db(u8 status_quality) | ||
1443 | { | ||
1444 | int r = MAX_CCK_EVM_DB - cck_evm_db(status_quality); | ||
1445 | ZD_ASSERT(r >= 0); | ||
1446 | return r; | ||
1447 | } | ||
1448 | |||
1449 | static int cck_qual_percent(u8 status_quality) | ||
1450 | { | ||
1451 | int r; | ||
1452 | |||
1453 | r = cck_snr_db(status_quality); | ||
1454 | r = (100*r)/17; | ||
1455 | return r <= 100 ? r : 100; | ||
1456 | } | ||
1457 | |||
1458 | static inline u8 zd_rate_from_ofdm_plcp_header(const void *rx_frame) | 1328 | static inline u8 zd_rate_from_ofdm_plcp_header(const void *rx_frame) |
1459 | { | 1329 | { |
1460 | return ZD_OFDM | zd_ofdm_plcp_header_rate(rx_frame); | 1330 | return ZD_OFDM | zd_ofdm_plcp_header_rate(rx_frame); |
1461 | } | 1331 | } |
1462 | 1332 | ||
1463 | u8 zd_rx_qual_percent(const void *rx_frame, unsigned int size, | ||
1464 | const struct rx_status *status) | ||
1465 | { | ||
1466 | return (status->frame_status&ZD_RX_OFDM) ? | ||
1467 | ofdm_qual_percent(status->signal_quality_ofdm, | ||
1468 | zd_rate_from_ofdm_plcp_header(rx_frame), | ||
1469 | size) : | ||
1470 | cck_qual_percent(status->signal_quality_cck); | ||
1471 | } | ||
1472 | |||
1473 | /** | 1333 | /** |
1474 | * zd_rx_rate - report zd-rate | 1334 | * zd_rx_rate - report zd-rate |
1475 | * @rx_frame - received frame | 1335 | * @rx_frame - received frame |
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.h b/drivers/net/wireless/zd1211rw/zd_chip.h index 9fd8f3508d6..f8bbf7d302a 100644 --- a/drivers/net/wireless/zd1211rw/zd_chip.h +++ b/drivers/net/wireless/zd1211rw/zd_chip.h | |||
@@ -929,9 +929,6 @@ static inline int zd_get_beacon_interval(struct zd_chip *chip, u32 *interval) | |||
929 | 929 | ||
930 | struct rx_status; | 930 | struct rx_status; |
931 | 931 | ||
932 | u8 zd_rx_qual_percent(const void *rx_frame, unsigned int size, | ||
933 | const struct rx_status *status); | ||
934 | |||
935 | u8 zd_rx_rate(const void *rx_frame, const struct rx_status *status); | 932 | u8 zd_rx_rate(const void *rx_frame, const struct rx_status *status); |
936 | 933 | ||
937 | struct zd_mc_hash { | 934 | struct zd_mc_hash { |
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index cf51e8f8174..8ebf5c33955 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c | |||
@@ -828,9 +828,6 @@ int zd_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, unsigned int length) | |||
828 | stats.freq = zd_channels[_zd_chip_get_channel(&mac->chip) - 1].center_freq; | 828 | stats.freq = zd_channels[_zd_chip_get_channel(&mac->chip) - 1].center_freq; |
829 | stats.band = IEEE80211_BAND_2GHZ; | 829 | stats.band = IEEE80211_BAND_2GHZ; |
830 | stats.signal = status->signal_strength; | 830 | stats.signal = status->signal_strength; |
831 | stats.qual = zd_rx_qual_percent(buffer, | ||
832 | length - sizeof(struct rx_status), | ||
833 | status); | ||
834 | 831 | ||
835 | rate = zd_rx_rate(buffer, status); | 832 | rate = zd_rx_rate(buffer, status); |
836 | 833 | ||