diff options
Diffstat (limited to 'drivers/staging/brcm80211/brcmsmac/wlc_rate.c')
| -rw-r--r-- | drivers/staging/brcm80211/brcmsmac/wlc_rate.c | 499 |
1 files changed, 0 insertions, 499 deletions
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_rate.c b/drivers/staging/brcm80211/brcmsmac/wlc_rate.c deleted file mode 100644 index 87b252d6a7f5..000000000000 --- a/drivers/staging/brcm80211/brcmsmac/wlc_rate.c +++ /dev/null @@ -1,499 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ -#include <linux/kernel.h> -#include <linux/module.h> - -#include <proto/802.11.h> -#include <bcmdefs.h> -#include <bcmutils.h> -#include <aiutils.h> -#include <wlioctl.h> -#include <sbhnddma.h> - -#include "wlc_types.h" -#include "d11.h" -#include "wl_dbg.h" -#include "wlc_cfg.h" -#include "wlc_scb.h" -#include "wlc_pub.h" -#include "wlc_rate.h" - -/* Rate info per rate: It tells whether a rate is ofdm or not and its phy_rate value */ -const u8 rate_info[WLC_MAXRATE + 1] = { - /* 0 1 2 3 4 5 6 7 8 9 */ -/* 0 */ 0x00, 0x00, 0x0a, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, -/* 10 */ 0x00, 0x37, 0x8b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x00, -/* 20 */ 0x00, 0x00, 0x6e, 0x00, 0x8a, 0x00, 0x00, 0x00, 0x00, 0x00, -/* 30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x00, 0x00, 0x00, -/* 40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x00, -/* 50 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -/* 60 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -/* 70 */ 0x00, 0x00, 0x8d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -/* 80 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -/* 90 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, -/* 100 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8c -}; - -/* rates are in units of Kbps */ -const mcs_info_t mcs_table[MCS_TABLE_SIZE] = { - /* MCS 0: SS 1, MOD: BPSK, CR 1/2 */ - {6500, 13500, CEIL(6500 * 10, 9), CEIL(13500 * 10, 9), 0x00, - WLC_RATE_6M}, - /* MCS 1: SS 1, MOD: QPSK, CR 1/2 */ - {13000, 27000, CEIL(13000 * 10, 9), CEIL(27000 * 10, 9), 0x08, - WLC_RATE_12M}, - /* MCS 2: SS 1, MOD: QPSK, CR 3/4 */ - {19500, 40500, CEIL(19500 * 10, 9), CEIL(40500 * 10, 9), 0x0A, - WLC_RATE_18M}, - /* MCS 3: SS 1, MOD: 16QAM, CR 1/2 */ - {26000, 54000, CEIL(26000 * 10, 9), CEIL(54000 * 10, 9), 0x10, - WLC_RATE_24M}, - /* MCS 4: SS 1, MOD: 16QAM, CR 3/4 */ - {39000, 81000, CEIL(39000 * 10, 9), CEIL(81000 * 10, 9), 0x12, - WLC_RATE_36M}, - /* MCS 5: SS 1, MOD: 64QAM, CR 2/3 */ - {52000, 108000, CEIL(52000 * 10, 9), CEIL(108000 * 10, 9), 0x19, - WLC_RATE_48M}, - /* MCS 6: SS 1, MOD: 64QAM, CR 3/4 */ - {58500, 121500, CEIL(58500 * 10, 9), CEIL(121500 * 10, 9), 0x1A, - WLC_RATE_54M}, - /* MCS 7: SS 1, MOD: 64QAM, CR 5/6 */ - {65000, 135000, CEIL(65000 * 10, 9), CEIL(135000 * 10, 9), 0x1C, - WLC_RATE_54M}, - /* MCS 8: SS 2, MOD: BPSK, CR 1/2 */ - {13000, 27000, CEIL(13000 * 10, 9), CEIL(27000 * 10, 9), 0x40, - WLC_RATE_6M}, - /* MCS 9: SS 2, MOD: QPSK, CR 1/2 */ - {26000, 54000, CEIL(26000 * 10, 9), CEIL(54000 * 10, 9), 0x48, - WLC_RATE_12M}, - /* MCS 10: SS 2, MOD: QPSK, CR 3/4 */ - {39000, 81000, CEIL(39000 * 10, 9), CEIL(81000 * 10, 9), 0x4A, - WLC_RATE_18M}, - /* MCS 11: SS 2, MOD: 16QAM, CR 1/2 */ - {52000, 108000, CEIL(52000 * 10, 9), CEIL(108000 * 10, 9), 0x50, - WLC_RATE_24M}, - /* MCS 12: SS 2, MOD: 16QAM, CR 3/4 */ - {78000, 162000, CEIL(78000 * 10, 9), CEIL(162000 * 10, 9), 0x52, - WLC_RATE_36M}, - /* MCS 13: SS 2, MOD: 64QAM, CR 2/3 */ - {104000, 216000, CEIL(104000 * 10, 9), CEIL(216000 * 10, 9), 0x59, - WLC_RATE_48M}, - /* MCS 14: SS 2, MOD: 64QAM, CR 3/4 */ - {117000, 243000, CEIL(117000 * 10, 9), CEIL(243000 * 10, 9), 0x5A, - WLC_RATE_54M}, - /* MCS 15: SS 2, MOD: 64QAM, CR 5/6 */ - {130000, 270000, CEIL(130000 * 10, 9), CEIL(270000 * 10, 9), 0x5C, - WLC_RATE_54M}, - /* MCS 16: SS 3, MOD: BPSK, CR 1/2 */ - {19500, 40500, CEIL(19500 * 10, 9), CEIL(40500 * 10, 9), 0x80, - WLC_RATE_6M}, - /* MCS 17: SS 3, MOD: QPSK, CR 1/2 */ - {39000, 81000, CEIL(39000 * 10, 9), CEIL(81000 * 10, 9), 0x88, - WLC_RATE_12M}, - /* MCS 18: SS 3, MOD: QPSK, CR 3/4 */ - {58500, 121500, CEIL(58500 * 10, 9), CEIL(121500 * 10, 9), 0x8A, - WLC_RATE_18M}, - /* MCS 19: SS 3, MOD: 16QAM, CR 1/2 */ - {78000, 162000, CEIL(78000 * 10, 9), CEIL(162000 * 10, 9), 0x90, - WLC_RATE_24M}, - /* MCS 20: SS 3, MOD: 16QAM, CR 3/4 */ - {117000, 243000, CEIL(117000 * 10, 9), CEIL(243000 * 10, 9), 0x92, - WLC_RATE_36M}, - /* MCS 21: SS 3, MOD: 64QAM, CR 2/3 */ - {156000, 324000, CEIL(156000 * 10, 9), CEIL(324000 * 10, 9), 0x99, - WLC_RATE_48M}, - /* MCS 22: SS 3, MOD: 64QAM, CR 3/4 */ - {175500, 364500, CEIL(175500 * 10, 9), CEIL(364500 * 10, 9), 0x9A, - WLC_RATE_54M}, - /* MCS 23: SS 3, MOD: 64QAM, CR 5/6 */ - {195000, 405000, CEIL(195000 * 10, 9), CEIL(405000 * 10, 9), 0x9B, - WLC_RATE_54M}, - /* MCS 24: SS 4, MOD: BPSK, CR 1/2 */ - {26000, 54000, CEIL(26000 * 10, 9), CEIL(54000 * 10, 9), 0xC0, - WLC_RATE_6M}, - /* MCS 25: SS 4, MOD: QPSK, CR 1/2 */ - {52000, 108000, CEIL(52000 * 10, 9), CEIL(108000 * 10, 9), 0xC8, - WLC_RATE_12M}, - /* MCS 26: SS 4, MOD: QPSK, CR 3/4 */ - {78000, 162000, CEIL(78000 * 10, 9), CEIL(162000 * 10, 9), 0xCA, - WLC_RATE_18M}, - /* MCS 27: SS 4, MOD: 16QAM, CR 1/2 */ - {104000, 216000, CEIL(104000 * 10, 9), CEIL(216000 * 10, 9), 0xD0, - WLC_RATE_24M}, - /* MCS 28: SS 4, MOD: 16QAM, CR 3/4 */ - {156000, 324000, CEIL(156000 * 10, 9), CEIL(324000 * 10, 9), 0xD2, - WLC_RATE_36M}, - /* MCS 29: SS 4, MOD: 64QAM, CR 2/3 */ - {208000, 432000, CEIL(208000 * 10, 9), CEIL(432000 * 10, 9), 0xD9, - WLC_RATE_48M}, - /* MCS 30: SS 4, MOD: 64QAM, CR 3/4 */ - {234000, 486000, CEIL(234000 * 10, 9), CEIL(486000 * 10, 9), 0xDA, - WLC_RATE_54M}, - /* MCS 31: SS 4, MOD: 64QAM, CR 5/6 */ - {260000, 540000, CEIL(260000 * 10, 9), CEIL(540000 * 10, 9), 0xDB, - WLC_RATE_54M}, - /* MCS 32: SS 1, MOD: BPSK, CR 1/2 */ - {0, 6000, 0, CEIL(6000 * 10, 9), 0x00, WLC_RATE_6M}, -}; - -/* phycfg for legacy OFDM frames: code rate, modulation scheme, spatial streams - * Number of spatial streams: always 1 - * other fields: refer to table 78 of section 17.3.2.2 of the original .11a standard - */ -typedef struct legacy_phycfg { - u32 rate_ofdm; /* ofdm mac rate */ - u8 tx_phy_ctl3; /* phy ctl byte 3, code rate, modulation type, # of streams */ -} legacy_phycfg_t; - -#define LEGACY_PHYCFG_TABLE_SIZE 12 /* Number of legacy_rate_cfg entries in the table */ - -/* In CCK mode LPPHY overloads OFDM Modulation bits with CCK Data Rate */ -/* Eventually MIMOPHY would also be converted to this format */ -/* 0 = 1Mbps; 1 = 2Mbps; 2 = 5.5Mbps; 3 = 11Mbps */ -static const legacy_phycfg_t legacy_phycfg_table[LEGACY_PHYCFG_TABLE_SIZE] = { - {WLC_RATE_1M, 0x00}, /* CCK 1Mbps, data rate 0 */ - {WLC_RATE_2M, 0x08}, /* CCK 2Mbps, data rate 1 */ - {WLC_RATE_5M5, 0x10}, /* CCK 5.5Mbps, data rate 2 */ - {WLC_RATE_11M, 0x18}, /* CCK 11Mbps, data rate 3 */ - {WLC_RATE_6M, 0x00}, /* OFDM 6Mbps, code rate 1/2, BPSK, 1 spatial stream */ - {WLC_RATE_9M, 0x02}, /* OFDM 9Mbps, code rate 3/4, BPSK, 1 spatial stream */ - {WLC_RATE_12M, 0x08}, /* OFDM 12Mbps, code rate 1/2, QPSK, 1 spatial stream */ - {WLC_RATE_18M, 0x0A}, /* OFDM 18Mbps, code rate 3/4, QPSK, 1 spatial stream */ - {WLC_RATE_24M, 0x10}, /* OFDM 24Mbps, code rate 1/2, 16-QAM, 1 spatial stream */ - {WLC_RATE_36M, 0x12}, /* OFDM 36Mbps, code rate 3/4, 16-QAM, 1 spatial stream */ - {WLC_RATE_48M, 0x19}, /* OFDM 48Mbps, code rate 2/3, 64-QAM, 1 spatial stream */ - {WLC_RATE_54M, 0x1A}, /* OFDM 54Mbps, code rate 3/4, 64-QAM, 1 spatial stream */ -}; - -/* Hardware rates (also encodes default basic rates) */ - -const wlc_rateset_t cck_ofdm_mimo_rates = { - 12, - { /* 1b, 2b, 5.5b, 6, 9, 11b, 12, 18, 24, 36, 48, 54 Mbps */ - 0x82, 0x84, 0x8b, 0x0c, 0x12, 0x96, 0x18, 0x24, 0x30, 0x48, 0x60, - 0x6c}, - 0x00, - {0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00} -}; - -const wlc_rateset_t ofdm_mimo_rates = { - 8, - { /* 6b, 9, 12b, 18, 24b, 36, 48, 54 Mbps */ - 0x8c, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6c}, - 0x00, - {0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00} -}; - -/* Default ratesets that include MCS32 for 40BW channels */ -const wlc_rateset_t cck_ofdm_40bw_mimo_rates = { - 12, - { /* 1b, 2b, 5.5b, 6, 9, 11b, 12, 18, 24, 36, 48, 54 Mbps */ - 0x82, 0x84, 0x8b, 0x0c, 0x12, 0x96, 0x18, 0x24, 0x30, 0x48, 0x60, - 0x6c}, - 0x00, - {0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00} -}; - -const wlc_rateset_t ofdm_40bw_mimo_rates = { - 8, - { /* 6b, 9, 12b, 18, 24b, 36, 48, 54 Mbps */ - 0x8c, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6c}, - 0x00, - {0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00} -}; - -const wlc_rateset_t cck_ofdm_rates = { - 12, - { /* 1b, 2b, 5.5b, 6, 9, 11b, 12, 18, 24, 36, 48, 54 Mbps */ - 0x82, 0x84, 0x8b, 0x0c, 0x12, 0x96, 0x18, 0x24, 0x30, 0x48, 0x60, - 0x6c}, - 0x00, - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00} -}; - -const wlc_rateset_t gphy_legacy_rates = { - 4, - { /* 1b, 2b, 5.5b, 11b Mbps */ - 0x82, 0x84, 0x8b, 0x96}, - 0x00, - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00} -}; - -const wlc_rateset_t ofdm_rates = { - 8, - { /* 6b, 9, 12b, 18, 24b, 36, 48, 54 Mbps */ - 0x8c, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6c}, - 0x00, - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00} -}; - -const wlc_rateset_t cck_rates = { - 4, - { /* 1b, 2b, 5.5, 11 Mbps */ - 0x82, 0x84, 0x0b, 0x16}, - 0x00, - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00} -}; - -static bool wlc_rateset_valid(wlc_rateset_t *rs, bool check_brate); - -/* check if rateset is valid. - * if check_brate is true, rateset without a basic rate is considered NOT valid. - */ -static bool wlc_rateset_valid(wlc_rateset_t *rs, bool check_brate) -{ - uint idx; - - if (!rs->count) - return false; - - if (!check_brate) - return true; - - /* error if no basic rates */ - for (idx = 0; idx < rs->count; idx++) { - if (rs->rates[idx] & WLC_RATE_FLAG) - return true; - } - return false; -} - -void wlc_rateset_mcs_upd(wlc_rateset_t *rs, u8 txstreams) -{ - int i; - for (i = txstreams; i < MAX_STREAMS_SUPPORTED; i++) - rs->mcs[i] = 0; -} - -/* filter based on hardware rateset, and sort filtered rateset with basic bit(s) preserved, - * and check if resulting rateset is valid. -*/ -bool -wlc_rate_hwrs_filter_sort_validate(wlc_rateset_t *rs, - const wlc_rateset_t *hw_rs, - bool check_brate, u8 txstreams) -{ - u8 rateset[WLC_MAXRATE + 1]; - u8 r; - uint count; - uint i; - - memset(rateset, 0, sizeof(rateset)); - count = rs->count; - - for (i = 0; i < count; i++) { - /* mask off "basic rate" bit, WLC_RATE_FLAG */ - r = (int)rs->rates[i] & WLC_RATE_MASK; - if ((r > WLC_MAXRATE) || (rate_info[r] == 0)) { - continue; - } - rateset[r] = rs->rates[i]; /* preserve basic bit! */ - } - - /* fill out the rates in order, looking at only supported rates */ - count = 0; - for (i = 0; i < hw_rs->count; i++) { - r = hw_rs->rates[i] & WLC_RATE_MASK; - if (rateset[r]) - rs->rates[count++] = rateset[r]; - } - - rs->count = count; - - /* only set the mcs rate bit if the equivalent hw mcs bit is set */ - for (i = 0; i < MCSSET_LEN; i++) - rs->mcs[i] = (rs->mcs[i] & hw_rs->mcs[i]); - - if (wlc_rateset_valid(rs, check_brate)) - return true; - else - return false; -} - -/* calculate the rate of a rx'd frame and return it as a ratespec */ -ratespec_t wlc_compute_rspec(d11rxhdr_t *rxh, u8 *plcp) -{ - int phy_type; - ratespec_t rspec = PHY_TXC1_BW_20MHZ << RSPEC_BW_SHIFT; - - phy_type = - ((rxh->RxChan & RXS_CHAN_PHYTYPE_MASK) >> RXS_CHAN_PHYTYPE_SHIFT); - - if ((phy_type == PHY_TYPE_N) || (phy_type == PHY_TYPE_SSN) || - (phy_type == PHY_TYPE_LCN) || (phy_type == PHY_TYPE_HT)) { - switch (rxh->PhyRxStatus_0 & PRXS0_FT_MASK) { - case PRXS0_CCK: - rspec = - CCK_PHY2MAC_RATE(((cck_phy_hdr_t *) plcp)->signal); - break; - case PRXS0_OFDM: - rspec = - OFDM_PHY2MAC_RATE(((ofdm_phy_hdr_t *) plcp)-> - rlpt[0]); - break; - case PRXS0_PREN: - rspec = (plcp[0] & MIMO_PLCP_MCS_MASK) | RSPEC_MIMORATE; - if (plcp[0] & MIMO_PLCP_40MHZ) { - /* indicate rspec is for 40 MHz mode */ - rspec &= ~RSPEC_BW_MASK; - rspec |= (PHY_TXC1_BW_40MHZ << RSPEC_BW_SHIFT); - } - break; - case PRXS0_STDN: - /* fallthru */ - default: - /* not supported, error condition */ - break; - } - if (PLCP3_ISSGI(plcp[3])) - rspec |= RSPEC_SHORT_GI; - } else - if ((phy_type == PHY_TYPE_A) || (rxh->PhyRxStatus_0 & PRXS0_OFDM)) - rspec = OFDM_PHY2MAC_RATE(((ofdm_phy_hdr_t *) plcp)->rlpt[0]); - else - rspec = CCK_PHY2MAC_RATE(((cck_phy_hdr_t *) plcp)->signal); - - return rspec; -} - -/* copy rateset src to dst as-is (no masking or sorting) */ -void wlc_rateset_copy(const wlc_rateset_t *src, wlc_rateset_t *dst) -{ - memcpy(dst, src, sizeof(wlc_rateset_t)); -} - -/* - * Copy and selectively filter one rateset to another. - * 'basic_only' means only copy basic rates. - * 'rates' indicates cck (11b) and ofdm rates combinations. - * - 0: cck and ofdm - * - 1: cck only - * - 2: ofdm only - * 'xmask' is the copy mask (typically 0x7f or 0xff). - */ -void -wlc_rateset_filter(wlc_rateset_t *src, wlc_rateset_t *dst, bool basic_only, - u8 rates, uint xmask, bool mcsallow) -{ - uint i; - uint r; - uint count; - - count = 0; - for (i = 0; i < src->count; i++) { - r = src->rates[i]; - if (basic_only && !(r & WLC_RATE_FLAG)) - continue; - if ((rates == WLC_RATES_CCK) && IS_OFDM((r & WLC_RATE_MASK))) - continue; - if ((rates == WLC_RATES_OFDM) && IS_CCK((r & WLC_RATE_MASK))) - continue; - dst->rates[count++] = r & xmask; - } - dst->count = count; - dst->htphy_membership = src->htphy_membership; - - if (mcsallow && rates != WLC_RATES_CCK) - memcpy(&dst->mcs[0], &src->mcs[0], MCSSET_LEN); - else - wlc_rateset_mcs_clear(dst); -} - -/* select rateset for a given phy_type and bandtype and filter it, sort it - * and fill rs_tgt with result - */ -void -wlc_rateset_default(wlc_rateset_t *rs_tgt, const wlc_rateset_t *rs_hw, - uint phy_type, int bandtype, bool cck_only, uint rate_mask, - bool mcsallow, u8 bw, u8 txstreams) -{ - const wlc_rateset_t *rs_dflt; - wlc_rateset_t rs_sel; - if ((PHYTYPE_IS(phy_type, PHY_TYPE_HT)) || - (PHYTYPE_IS(phy_type, PHY_TYPE_N)) || - (PHYTYPE_IS(phy_type, PHY_TYPE_LCN)) || - (PHYTYPE_IS(phy_type, PHY_TYPE_SSN))) { - if (BAND_5G(bandtype)) { - rs_dflt = (bw == WLC_20_MHZ ? - &ofdm_mimo_rates : &ofdm_40bw_mimo_rates); - } else { - rs_dflt = (bw == WLC_20_MHZ ? - &cck_ofdm_mimo_rates : - &cck_ofdm_40bw_mimo_rates); - } - } else if (PHYTYPE_IS(phy_type, PHY_TYPE_LP)) { - rs_dflt = (BAND_5G(bandtype)) ? &ofdm_rates : &cck_ofdm_rates; - } else if (PHYTYPE_IS(phy_type, PHY_TYPE_A)) { - rs_dflt = &ofdm_rates; - } else if (PHYTYPE_IS(phy_type, PHY_TYPE_G)) { - rs_dflt = &cck_ofdm_rates; - } else { - /* should not happen, error condition */ - rs_dflt = &cck_rates; /* force cck */ - } - - /* if hw rateset is not supplied, assign selected rateset to it */ - if (!rs_hw) - rs_hw = rs_dflt; - - wlc_rateset_copy(rs_dflt, &rs_sel); - wlc_rateset_mcs_upd(&rs_sel, txstreams); - wlc_rateset_filter(&rs_sel, rs_tgt, false, - cck_only ? WLC_RATES_CCK : WLC_RATES_CCK_OFDM, - rate_mask, mcsallow); - wlc_rate_hwrs_filter_sort_validate(rs_tgt, rs_hw, false, - mcsallow ? txstreams : 1); -} - -s16 wlc_rate_legacy_phyctl(uint rate) -{ - uint i; - for (i = 0; i < LEGACY_PHYCFG_TABLE_SIZE; i++) - if (rate == legacy_phycfg_table[i].rate_ofdm) - return legacy_phycfg_table[i].tx_phy_ctl3; - - return -1; -} - -void wlc_rateset_mcs_clear(wlc_rateset_t *rateset) -{ - uint i; - for (i = 0; i < MCSSET_LEN; i++) - rateset->mcs[i] = 0; -} - -void wlc_rateset_mcs_build(wlc_rateset_t *rateset, u8 txstreams) -{ - memcpy(&rateset->mcs[0], &cck_ofdm_mimo_rates.mcs[0], MCSSET_LEN); - wlc_rateset_mcs_upd(rateset, txstreams); -} - -/* Based on bandwidth passed, allow/disallow MCS 32 in the rateset */ -void wlc_rateset_bw_mcs_filter(wlc_rateset_t *rateset, u8 bw) -{ - if (bw == WLC_40_MHZ) - setbit(rateset->mcs, 32); - else - clrbit(rateset->mcs, 32); -} |