| /* |
| * 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 <wlc_cfg.h> |
| #include <bcmdefs.h> |
| #include <osl.h> |
| #include <bcmutils.h> |
| #include <siutils.h> |
| #include <bcmendian.h> |
| #include <proto/802.11.h> |
| #include <wlioctl.h> |
| #include <bcmwifi.h> |
| #include <sbhndpio.h> |
| #include <sbhnddma.h> |
| #include <d11.h> |
| #include <wlc_rate.h> |
| #include <wlc_pub.h> |
| #include <wlc_key.h> |
| #include <wlc_channel.h> |
| #include <wlc_bsscfg.h> |
| #include <wlc_event.h> |
| #include <wlc_mac80211.h> |
| #include <wlc_scb.h> |
| #include <wl_export.h> |
| #include <wlc_bmac.h> |
| #include <wlc_stf.h> |
| #include <wl_dbg.h> |
| |
| #define WLC_STF_SS_STBC_RX(wlc) (WLCISNPHY(wlc->band) && \ |
| NREV_GT(wlc->band->phyrev, 3) && NREV_LE(wlc->band->phyrev, 6)) |
| |
| static s8 wlc_stf_stbc_rx_get(struct wlc_info *wlc); |
| static bool wlc_stf_stbc_tx_set(struct wlc_info *wlc, s32 int_val); |
| static int wlc_stf_txcore_set(struct wlc_info *wlc, u8 Nsts, u8 val); |
| static int wlc_stf_spatial_policy_set(struct wlc_info *wlc, int val); |
| static void wlc_stf_stbc_rx_ht_update(struct wlc_info *wlc, int val); |
| |
| static void _wlc_stf_phy_txant_upd(struct wlc_info *wlc); |
| static u16 _wlc_stf_phytxchain_sel(struct wlc_info *wlc, ratespec_t rspec); |
| |
| #define NSTS_1 1 |
| #define NSTS_2 2 |
| #define NSTS_3 3 |
| #define NSTS_4 4 |
| const u8 txcore_default[5] = { |
| (0), /* bitmap of the core enabled */ |
| (0x01), /* For Nsts = 1, enable core 1 */ |
| (0x03), /* For Nsts = 2, enable core 1 & 2 */ |
| (0x07), /* For Nsts = 3, enable core 1, 2 & 3 */ |
| (0x0f) /* For Nsts = 4, enable all cores */ |
| }; |
| |
| static void wlc_stf_stbc_rx_ht_update(struct wlc_info *wlc, int val) |
| { |
| ASSERT((val == HT_CAP_RX_STBC_NO) |
| || (val == HT_CAP_RX_STBC_ONE_STREAM)); |
| |
| /* MIMOPHYs rev3-6 cannot receive STBC with only one rx core active */ |
| if (WLC_STF_SS_STBC_RX(wlc)) { |
| if ((wlc->stf->rxstreams == 1) && (val != HT_CAP_RX_STBC_NO)) |
| return; |
| } |
| |
| wlc->ht_cap.cap &= ~HT_CAP_RX_STBC_MASK; |
| wlc->ht_cap.cap |= (val << HT_CAP_RX_STBC_SHIFT); |
| |
| if (wlc->pub->up) { |
| wlc_update_beacon(wlc); |
| wlc_update_probe_resp(wlc, true); |
| } |
| } |
| |
| /* every WLC_TEMPSENSE_PERIOD seconds temperature check to decide whether to turn on/off txchain */ |
| void wlc_tempsense_upd(struct wlc_info *wlc) |
| { |
| wlc_phy_t *pi = wlc->band->pi; |
| uint active_chains, txchain; |
| |
| /* Check if the chip is too hot. Disable one Tx chain, if it is */ |
| /* high 4 bits are for Rx chain, low 4 bits are for Tx chain */ |
| active_chains = wlc_phy_stf_chain_active_get(pi); |
| txchain = active_chains & 0xf; |
| |
| if (wlc->stf->txchain == wlc->stf->hw_txchain) { |
| if (txchain && (txchain < wlc->stf->hw_txchain)) { |
| /* turn off 1 tx chain */ |
| wlc_stf_txchain_set(wlc, txchain, true); |
| } |
| } else if (wlc->stf->txchain < wlc->stf->hw_txchain) { |
| if (txchain == wlc->stf->hw_txchain) { |
| /* turn back on txchain */ |
| wlc_stf_txchain_set(wlc, txchain, true); |
| } |
| } |
| } |
| |
| void |
| wlc_stf_ss_algo_channel_get(struct wlc_info *wlc, u16 *ss_algo_channel, |
| chanspec_t chanspec) |
| { |
| tx_power_t power; |
| u8 siso_mcs_id, cdd_mcs_id, stbc_mcs_id; |
| |
| /* Clear previous settings */ |
| *ss_algo_channel = 0; |
| |
| if (!wlc->pub->up) { |
| *ss_algo_channel = (u16) -1; |
| return; |
| } |
| |
| wlc_phy_txpower_get_current(wlc->band->pi, &power, |
| CHSPEC_CHANNEL(chanspec)); |
| |
| siso_mcs_id = (CHSPEC_IS40(chanspec)) ? |
| WL_TX_POWER_MCS40_SISO_FIRST : WL_TX_POWER_MCS20_SISO_FIRST; |
| cdd_mcs_id = (CHSPEC_IS40(chanspec)) ? |
| WL_TX_POWER_MCS40_CDD_FIRST : WL_TX_POWER_MCS20_CDD_FIRST; |
| stbc_mcs_id = (CHSPEC_IS40(chanspec)) ? |
| WL_TX_POWER_MCS40_STBC_FIRST : WL_TX_POWER_MCS20_STBC_FIRST; |
| |
| /* criteria to choose stf mode */ |
| |
| /* the "+3dbm (12 0.25db units)" is to account for the fact that with CDD, tx occurs |
| * on both chains |
| */ |
| if (power.target[siso_mcs_id] > (power.target[cdd_mcs_id] + 12)) |
| setbit(ss_algo_channel, PHY_TXC1_MODE_SISO); |
| else |
| setbit(ss_algo_channel, PHY_TXC1_MODE_CDD); |
| |
| /* STBC is ORed into to algo channel as STBC requires per-packet SCB capability check |
| * so cannot be default mode of operation. One of SISO, CDD have to be set |
| */ |
| if (power.target[siso_mcs_id] <= (power.target[stbc_mcs_id] + 12)) |
| setbit(ss_algo_channel, PHY_TXC1_MODE_STBC); |
| } |
| |
| static s8 wlc_stf_stbc_rx_get(struct wlc_info *wlc) |
| { |
| return (wlc->ht_cap.cap & HT_CAP_RX_STBC_MASK) >> HT_CAP_RX_STBC_SHIFT; |
| } |
| |
| static bool wlc_stf_stbc_tx_set(struct wlc_info *wlc, s32 int_val) |
| { |
| if ((int_val != AUTO) && (int_val != OFF) && (int_val != ON)) { |
| return false; |
| } |
| |
| if ((int_val == ON) && (wlc->stf->txstreams == 1)) |
| return false; |
| |
| if ((int_val == OFF) || (wlc->stf->txstreams == 1) |
| || !WLC_STBC_CAP_PHY(wlc)) |
| wlc->ht_cap.cap &= ~HT_CAP_TX_STBC; |
| else |
| wlc->ht_cap.cap |= HT_CAP_TX_STBC; |
| |
| wlc->bandstate[BAND_2G_INDEX]->band_stf_stbc_tx = (s8) int_val; |
| wlc->bandstate[BAND_5G_INDEX]->band_stf_stbc_tx = (s8) int_val; |
| |
| return true; |
| } |
| |
| bool wlc_stf_stbc_rx_set(struct wlc_info *wlc, s32 int_val) |
| { |
| if ((int_val != HT_CAP_RX_STBC_NO) |
| && (int_val != HT_CAP_RX_STBC_ONE_STREAM)) { |
| return false; |
| } |
| |
| if (WLC_STF_SS_STBC_RX(wlc)) { |
| if ((int_val != HT_CAP_RX_STBC_NO) |
| && (wlc->stf->rxstreams == 1)) |
| return false; |
| } |
| |
| wlc_stf_stbc_rx_ht_update(wlc, int_val); |
| return true; |
| } |
| |
| static int wlc_stf_txcore_set(struct wlc_info *wlc, u8 Nsts, u8 core_mask) |
| { |
| WL_TRACE("wl%d: %s: Nsts %d core_mask %x\n", |
| wlc->pub->unit, __func__, Nsts, core_mask); |
| |
| ASSERT((Nsts > 0) && (Nsts <= MAX_STREAMS_SUPPORTED)); |
| |
| if (WLC_BITSCNT(core_mask) > wlc->stf->txstreams) { |
| core_mask = 0; |
| } |
| |
| if ((WLC_BITSCNT(core_mask) == wlc->stf->txstreams) && |
| ((core_mask & ~wlc->stf->txchain) |
| || !(core_mask & wlc->stf->txchain))) { |
| core_mask = wlc->stf->txchain; |
| } |
| |
| ASSERT(!core_mask || Nsts <= WLC_BITSCNT(core_mask)); |
| |
| wlc->stf->txcore[Nsts] = core_mask; |
| /* Nsts = 1..4, txcore index = 1..4 */ |
| if (Nsts == 1) { |
| /* Needs to update beacon and ucode generated response |
| * frames when 1 stream core map changed |
| */ |
| wlc->stf->phytxant = core_mask << PHY_TXC_ANT_SHIFT; |
| wlc_bmac_txant_set(wlc->hw, wlc->stf->phytxant); |
| if (wlc->clk) { |
| wlc_suspend_mac_and_wait(wlc); |
| wlc_beacon_phytxctl_txant_upd(wlc, wlc->bcn_rspec); |
| wlc_enable_mac(wlc); |
| } |
| } |
| |
| return BCME_OK; |
| } |
| |
| static int wlc_stf_spatial_policy_set(struct wlc_info *wlc, int val) |
| { |
| int i; |
| u8 core_mask = 0; |
| |
| WL_TRACE("wl%d: %s: val %x\n", wlc->pub->unit, __func__, val); |
| |
| wlc->stf->spatial_policy = (s8) val; |
| for (i = 1; i <= MAX_STREAMS_SUPPORTED; i++) { |
| core_mask = (val == MAX_SPATIAL_EXPANSION) ? |
| wlc->stf->txchain : txcore_default[i]; |
| wlc_stf_txcore_set(wlc, (u8) i, core_mask); |
| } |
| return BCME_OK; |
| } |
| |
| int wlc_stf_txchain_set(struct wlc_info *wlc, s32 int_val, bool force) |
| { |
| u8 txchain = (u8) int_val; |
| u8 txstreams; |
| uint i; |
| |
| if (wlc->stf->txchain == txchain) |
| return BCME_OK; |
| |
| if ((txchain & ~wlc->stf->hw_txchain) |
| || !(txchain & wlc->stf->hw_txchain)) |
| return BCME_RANGE; |
| |
| /* if nrate override is configured to be non-SISO STF mode, reject reducing txchain to 1 */ |
| txstreams = (u8) WLC_BITSCNT(txchain); |
| if (txstreams > MAX_STREAMS_SUPPORTED) |
| return BCME_RANGE; |
| |
| if (txstreams == 1) { |
| for (i = 0; i < NBANDS(wlc); i++) |
| if ((RSPEC_STF(wlc->bandstate[i]->rspec_override) != |
| PHY_TXC1_MODE_SISO) |
| || (RSPEC_STF(wlc->bandstate[i]->mrspec_override) != |
| PHY_TXC1_MODE_SISO)) { |
| if (!force) |
| return BCME_ERROR; |
| |
| /* over-write the override rspec */ |
| if (RSPEC_STF(wlc->bandstate[i]->rspec_override) |
| != PHY_TXC1_MODE_SISO) { |
| wlc->bandstate[i]->rspec_override = 0; |
| WL_ERROR("%s(): temp sense override non-SISO rspec_override\n", |
| __func__); |
| } |
| if (RSPEC_STF |
| (wlc->bandstate[i]->mrspec_override) != |
| PHY_TXC1_MODE_SISO) { |
| wlc->bandstate[i]->mrspec_override = 0; |
| WL_ERROR("%s(): temp sense override non-SISO mrspec_override\n", |
| __func__); |
| } |
| } |
| } |
| |
| wlc->stf->txchain = txchain; |
| wlc->stf->txstreams = txstreams; |
| wlc_stf_stbc_tx_set(wlc, wlc->band->band_stf_stbc_tx); |
| wlc_stf_ss_update(wlc, wlc->bandstate[BAND_2G_INDEX]); |
| wlc_stf_ss_update(wlc, wlc->bandstate[BAND_5G_INDEX]); |
| wlc->stf->txant = |
| (wlc->stf->txstreams == 1) ? ANT_TX_FORCE_0 : ANT_TX_DEF; |
| _wlc_stf_phy_txant_upd(wlc); |
| |
| wlc_phy_stf_chain_set(wlc->band->pi, wlc->stf->txchain, |
| wlc->stf->rxchain); |
| |
| for (i = 1; i <= MAX_STREAMS_SUPPORTED; i++) |
| wlc_stf_txcore_set(wlc, (u8) i, txcore_default[i]); |
| |
| return BCME_OK; |
| } |
| |
| int wlc_stf_rxchain_set(struct wlc_info *wlc, s32 int_val) |
| { |
| u8 rxchain_cnt; |
| u8 rxchain = (u8) int_val; |
| u8 mimops_mode; |
| u8 old_rxchain, old_rxchain_cnt; |
| |
| if (wlc->stf->rxchain == rxchain) |
| return BCME_OK; |
| |
| if ((rxchain & ~wlc->stf->hw_rxchain) |
| || !(rxchain & wlc->stf->hw_rxchain)) |
| return BCME_RANGE; |
| |
| rxchain_cnt = (u8) WLC_BITSCNT(rxchain); |
| if (WLC_STF_SS_STBC_RX(wlc)) { |
| if ((rxchain_cnt == 1) |
| && (wlc_stf_stbc_rx_get(wlc) != HT_CAP_RX_STBC_NO)) |
| return BCME_RANGE; |
| } |
| |
| if (APSTA_ENAB(wlc->pub) && (wlc->pub->associated)) |
| return BCME_ASSOCIATED; |
| |
| old_rxchain = wlc->stf->rxchain; |
| old_rxchain_cnt = wlc->stf->rxstreams; |
| |
| wlc->stf->rxchain = rxchain; |
| wlc->stf->rxstreams = rxchain_cnt; |
| |
| if (rxchain_cnt != old_rxchain_cnt) { |
| mimops_mode = |
| (rxchain_cnt == 1) ? HT_CAP_MIMO_PS_ON : HT_CAP_MIMO_PS_OFF; |
| wlc->mimops_PM = mimops_mode; |
| if (AP_ENAB(wlc->pub)) { |
| wlc_phy_stf_chain_set(wlc->band->pi, wlc->stf->txchain, |
| wlc->stf->rxchain); |
| wlc_ht_mimops_cap_update(wlc, mimops_mode); |
| if (wlc->pub->associated) |
| wlc_mimops_action_ht_send(wlc, wlc->cfg, |
| mimops_mode); |
| return BCME_OK; |
| } |
| if (wlc->pub->associated) { |
| if (mimops_mode == HT_CAP_MIMO_PS_OFF) { |
| /* if mimops is off, turn on the Rx chain first */ |
| wlc_phy_stf_chain_set(wlc->band->pi, |
| wlc->stf->txchain, |
| wlc->stf->rxchain); |
| wlc_ht_mimops_cap_update(wlc, mimops_mode); |
| } |
| } else { |
| wlc_phy_stf_chain_set(wlc->band->pi, wlc->stf->txchain, |
| wlc->stf->rxchain); |
| wlc_ht_mimops_cap_update(wlc, mimops_mode); |
| } |
| } else if (old_rxchain != rxchain) |
| wlc_phy_stf_chain_set(wlc->band->pi, wlc->stf->txchain, |
| wlc->stf->rxchain); |
| |
| return BCME_OK; |
| } |
| |
| /* update wlc->stf->ss_opmode which represents the operational stf_ss mode we're using */ |
| int wlc_stf_ss_update(struct wlc_info *wlc, struct wlcband *band) |
| { |
| int ret_code = 0; |
| u8 prev_stf_ss; |
| u8 upd_stf_ss; |
| |
| prev_stf_ss = wlc->stf->ss_opmode; |
| |
| /* NOTE: opmode can only be SISO or CDD as STBC is decided on a per-packet basis */ |
| if (WLC_STBC_CAP_PHY(wlc) && |
| wlc->stf->ss_algosel_auto |
| && (wlc->stf->ss_algo_channel != (u16) -1)) { |
| ASSERT(isset(&wlc->stf->ss_algo_channel, PHY_TXC1_MODE_CDD) |
| || isset(&wlc->stf->ss_algo_channel, |
| PHY_TXC1_MODE_SISO)); |
| upd_stf_ss = (wlc->stf->no_cddstbc || (wlc->stf->txstreams == 1) |
| || isset(&wlc->stf->ss_algo_channel, |
| PHY_TXC1_MODE_SISO)) ? PHY_TXC1_MODE_SISO |
| : PHY_TXC1_MODE_CDD; |
| } else { |
| if (wlc->band != band) |
| return ret_code; |
| upd_stf_ss = (wlc->stf->no_cddstbc |
| || (wlc->stf->txstreams == |
| 1)) ? PHY_TXC1_MODE_SISO : band-> |
| band_stf_ss_mode; |
| } |
| if (prev_stf_ss != upd_stf_ss) { |
| wlc->stf->ss_opmode = upd_stf_ss; |
| wlc_bmac_band_stf_ss_set(wlc->hw, upd_stf_ss); |
| } |
| |
| return ret_code; |
| } |
| |
| int wlc_stf_attach(struct wlc_info *wlc) |
| { |
| wlc->bandstate[BAND_2G_INDEX]->band_stf_ss_mode = PHY_TXC1_MODE_SISO; |
| wlc->bandstate[BAND_5G_INDEX]->band_stf_ss_mode = PHY_TXC1_MODE_CDD; |
| |
| if (WLCISNPHY(wlc->band) && |
| (wlc_phy_txpower_hw_ctrl_get(wlc->band->pi) != PHY_TPC_HW_ON)) |
| wlc->bandstate[BAND_2G_INDEX]->band_stf_ss_mode = |
| PHY_TXC1_MODE_CDD; |
| wlc_stf_ss_update(wlc, wlc->bandstate[BAND_2G_INDEX]); |
| wlc_stf_ss_update(wlc, wlc->bandstate[BAND_5G_INDEX]); |
| |
| wlc_stf_stbc_rx_ht_update(wlc, HT_CAP_RX_STBC_NO); |
| wlc->bandstate[BAND_2G_INDEX]->band_stf_stbc_tx = OFF; |
| wlc->bandstate[BAND_5G_INDEX]->band_stf_stbc_tx = OFF; |
| |
| if (WLC_STBC_CAP_PHY(wlc)) { |
| wlc->stf->ss_algosel_auto = true; |
| wlc->stf->ss_algo_channel = (u16) -1; /* Init the default value */ |
| } |
| return 0; |
| } |
| |
| void wlc_stf_detach(struct wlc_info *wlc) |
| { |
| } |
| |
| int wlc_stf_ant_txant_validate(struct wlc_info *wlc, s8 val) |
| { |
| int bcmerror = BCME_OK; |
| |
| /* when there is only 1 tx_streams, don't allow to change the txant */ |
| if (WLCISNPHY(wlc->band) && (wlc->stf->txstreams == 1)) |
| return ((val == wlc->stf->txant) ? bcmerror : BCME_RANGE); |
| |
| switch (val) { |
| case -1: |
| val = ANT_TX_DEF; |
| break; |
| case 0: |
| val = ANT_TX_FORCE_0; |
| break; |
| case 1: |
| val = ANT_TX_FORCE_1; |
| break; |
| case 3: |
| val = ANT_TX_LAST_RX; |
| break; |
| default: |
| bcmerror = BCME_RANGE; |
| break; |
| } |
| |
| if (bcmerror == BCME_OK) |
| wlc->stf->txant = (s8) val; |
| |
| return bcmerror; |
| |
| } |
| |
| /* |
| * Centralized txant update function. call it whenever wlc->stf->txant and/or wlc->stf->txchain |
| * change |
| * |
| * Antennas are controlled by ucode indirectly, which drives PHY or GPIO to |
| * achieve various tx/rx antenna selection schemes |
| * |
| * legacy phy, bit 6 and bit 7 means antenna 0 and 1 respectively, bit6+bit7 means auto(last rx) |
| * for NREV<3, bit 6 and bit 7 means antenna 0 and 1 respectively, bit6+bit7 means last rx and |
| * do tx-antenna selection for SISO transmissions |
| * for NREV=3, bit 6 and bit _8_ means antenna 0 and 1 respectively, bit6+bit7 means last rx and |
| * do tx-antenna selection for SISO transmissions |
| * for NREV>=7, bit 6 and bit 7 mean antenna 0 and 1 respectively, nit6+bit7 means both cores active |
| */ |
| static void _wlc_stf_phy_txant_upd(struct wlc_info *wlc) |
| { |
| s8 txant; |
| |
| txant = (s8) wlc->stf->txant; |
| ASSERT(txant == ANT_TX_FORCE_0 || txant == ANT_TX_FORCE_1 |
| || txant == ANT_TX_LAST_RX); |
| |
| if (WLC_PHY_11N_CAP(wlc->band)) { |
| if (txant == ANT_TX_FORCE_0) { |
| wlc->stf->phytxant = PHY_TXC_ANT_0; |
| } else if (txant == ANT_TX_FORCE_1) { |
| wlc->stf->phytxant = PHY_TXC_ANT_1; |
| |
| if (WLCISNPHY(wlc->band) && |
| NREV_GE(wlc->band->phyrev, 3) |
| && NREV_LT(wlc->band->phyrev, 7)) { |
| wlc->stf->phytxant = PHY_TXC_ANT_2; |
| } |
| } else { |
| if (WLCISLCNPHY(wlc->band) || WLCISSSLPNPHY(wlc->band)) |
| wlc->stf->phytxant = PHY_TXC_LCNPHY_ANT_LAST; |
| else { |
| /* keep this assert to catch out of sync wlc->stf->txcore */ |
| ASSERT(wlc->stf->txchain > 0); |
| wlc->stf->phytxant = |
| wlc->stf->txchain << PHY_TXC_ANT_SHIFT; |
| } |
| } |
| } else { |
| if (txant == ANT_TX_FORCE_0) |
| wlc->stf->phytxant = PHY_TXC_OLD_ANT_0; |
| else if (txant == ANT_TX_FORCE_1) |
| wlc->stf->phytxant = PHY_TXC_OLD_ANT_1; |
| else |
| wlc->stf->phytxant = PHY_TXC_OLD_ANT_LAST; |
| } |
| |
| wlc_bmac_txant_set(wlc->hw, wlc->stf->phytxant); |
| } |
| |
| void wlc_stf_phy_txant_upd(struct wlc_info *wlc) |
| { |
| _wlc_stf_phy_txant_upd(wlc); |
| } |
| |
| void wlc_stf_phy_chain_calc(struct wlc_info *wlc) |
| { |
| /* get available rx/tx chains */ |
| wlc->stf->hw_txchain = (u8) getintvar(wlc->pub->vars, "txchain"); |
| wlc->stf->hw_rxchain = (u8) getintvar(wlc->pub->vars, "rxchain"); |
| |
| /* these parameter are intended to be used for all PHY types */ |
| if (wlc->stf->hw_txchain == 0 || wlc->stf->hw_txchain == 0xf) { |
| if (WLCISNPHY(wlc->band)) { |
| wlc->stf->hw_txchain = TXCHAIN_DEF_NPHY; |
| } else { |
| wlc->stf->hw_txchain = TXCHAIN_DEF; |
| } |
| } |
| |
| wlc->stf->txchain = wlc->stf->hw_txchain; |
| wlc->stf->txstreams = (u8) WLC_BITSCNT(wlc->stf->hw_txchain); |
| |
| if (wlc->stf->hw_rxchain == 0 || wlc->stf->hw_rxchain == 0xf) { |
| if (WLCISNPHY(wlc->band)) { |
| wlc->stf->hw_rxchain = RXCHAIN_DEF_NPHY; |
| } else { |
| wlc->stf->hw_rxchain = RXCHAIN_DEF; |
| } |
| } |
| |
| wlc->stf->rxchain = wlc->stf->hw_rxchain; |
| wlc->stf->rxstreams = (u8) WLC_BITSCNT(wlc->stf->hw_rxchain); |
| |
| /* initialize the txcore table */ |
| bcopy(txcore_default, wlc->stf->txcore, sizeof(wlc->stf->txcore)); |
| |
| /* default spatial_policy */ |
| wlc->stf->spatial_policy = MIN_SPATIAL_EXPANSION; |
| wlc_stf_spatial_policy_set(wlc, MIN_SPATIAL_EXPANSION); |
| } |
| |
| static u16 _wlc_stf_phytxchain_sel(struct wlc_info *wlc, ratespec_t rspec) |
| { |
| u16 phytxant = wlc->stf->phytxant; |
| |
| if (RSPEC_STF(rspec) != PHY_TXC1_MODE_SISO) { |
| ASSERT(wlc->stf->txstreams > 1); |
| phytxant = wlc->stf->txchain << PHY_TXC_ANT_SHIFT; |
| } else if (wlc->stf->txant == ANT_TX_DEF) |
| phytxant = wlc->stf->txchain << PHY_TXC_ANT_SHIFT; |
| phytxant &= PHY_TXC_ANT_MASK; |
| return phytxant; |
| } |
| |
| u16 wlc_stf_phytxchain_sel(struct wlc_info *wlc, ratespec_t rspec) |
| { |
| return _wlc_stf_phytxchain_sel(wlc, rspec); |
| } |
| |
| u16 wlc_stf_d11hdrs_phyctl_txant(struct wlc_info *wlc, ratespec_t rspec) |
| { |
| u16 phytxant = wlc->stf->phytxant; |
| u16 mask = PHY_TXC_ANT_MASK; |
| |
| /* for non-siso rates or default setting, use the available chains */ |
| if (WLCISNPHY(wlc->band)) { |
| ASSERT(wlc->stf->txchain != 0); |
| phytxant = _wlc_stf_phytxchain_sel(wlc, rspec); |
| mask = PHY_TXC_HTANT_MASK; |
| } |
| phytxant |= phytxant & mask; |
| return phytxant; |
| } |