diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x0/mac.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x0/mac.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/mac.c b/drivers/net/wireless/mediatek/mt76/mt76x0/mac.c deleted file mode 100644 index 7a422c590211..000000000000 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/mac.c +++ /dev/null @@ -1,197 +0,0 @@ -/* - * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org> - * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl> - * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/etherdevice.h> - -#include "mt76x0.h" -#include "trace.h" - -void mt76x0_mac_set_protection(struct mt76x02_dev *dev, bool legacy_prot, - int ht_mode) -{ - int mode = ht_mode & IEEE80211_HT_OP_MODE_PROTECTION; - bool non_gf = !!(ht_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); - u32 prot[6]; - bool ht_rts[4] = {}; - int i; - - prot[0] = MT_PROT_NAV_SHORT | - MT_PROT_TXOP_ALLOW_ALL | - MT_PROT_RTS_THR_EN; - prot[1] = prot[0]; - if (legacy_prot) - prot[1] |= MT_PROT_CTRL_CTS2SELF; - - prot[2] = prot[4] = MT_PROT_NAV_SHORT | MT_PROT_TXOP_ALLOW_BW20; - prot[3] = prot[5] = MT_PROT_NAV_SHORT | MT_PROT_TXOP_ALLOW_ALL; - - if (legacy_prot) { - prot[2] |= MT_PROT_RATE_CCK_11; - prot[3] |= MT_PROT_RATE_CCK_11; - prot[4] |= MT_PROT_RATE_CCK_11; - prot[5] |= MT_PROT_RATE_CCK_11; - } else { - prot[2] |= MT_PROT_RATE_OFDM_24; - prot[3] |= MT_PROT_RATE_DUP_OFDM_24; - prot[4] |= MT_PROT_RATE_OFDM_24; - prot[5] |= MT_PROT_RATE_DUP_OFDM_24; - } - - switch (mode) { - case IEEE80211_HT_OP_MODE_PROTECTION_NONE: - break; - - case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: - ht_rts[0] = ht_rts[1] = ht_rts[2] = ht_rts[3] = true; - break; - - case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: - ht_rts[1] = ht_rts[3] = true; - break; - - case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: - ht_rts[0] = ht_rts[1] = ht_rts[2] = ht_rts[3] = true; - break; - } - - if (non_gf) - ht_rts[2] = ht_rts[3] = true; - - for (i = 0; i < 4; i++) - if (ht_rts[i]) - prot[i + 2] |= MT_PROT_CTRL_RTS_CTS; - - for (i = 0; i < 6; i++) - mt76_wr(dev, MT_CCK_PROT_CFG + i * 4, prot[i]); -} - -void mt76x0_mac_set_short_preamble(struct mt76x02_dev *dev, bool short_preamb) -{ - if (short_preamb) - mt76_set(dev, MT_AUTO_RSP_CFG, MT_AUTO_RSP_PREAMB_SHORT); - else - mt76_clear(dev, MT_AUTO_RSP_CFG, MT_AUTO_RSP_PREAMB_SHORT); -} - -void mt76x0_mac_config_tsf(struct mt76x02_dev *dev, bool enable, int interval) -{ - u32 val = mt76_rr(dev, MT_BEACON_TIME_CFG); - - val &= ~(MT_BEACON_TIME_CFG_TIMER_EN | - MT_BEACON_TIME_CFG_SYNC_MODE | - MT_BEACON_TIME_CFG_TBTT_EN); - - if (!enable) { - mt76_wr(dev, MT_BEACON_TIME_CFG, val); - return; - } - - val &= ~MT_BEACON_TIME_CFG_INTVAL; - val |= FIELD_PREP(MT_BEACON_TIME_CFG_INTVAL, interval << 4) | - MT_BEACON_TIME_CFG_TIMER_EN | - MT_BEACON_TIME_CFG_SYNC_MODE | - MT_BEACON_TIME_CFG_TBTT_EN; -} - -static void mt76x0_check_mac_err(struct mt76x02_dev *dev) -{ - u32 val = mt76_rr(dev, 0x10f4); - - if (!(val & BIT(29)) || !(val & (BIT(7) | BIT(5)))) - return; - - dev_err(dev->mt76.dev, "Error: MAC specific condition occurred\n"); - - mt76_set(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_RESET_CSR); - udelay(10); - mt76_clear(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_RESET_CSR); -} -void mt76x0_mac_work(struct work_struct *work) -{ - struct mt76x02_dev *dev = container_of(work, struct mt76x02_dev, - mac_work.work); - struct { - u32 addr_base; - u32 span; - u64 *stat_base; - } spans[] = { - { MT_RX_STAT_0, 3, dev->stats.rx_stat }, - { MT_TX_STA_0, 3, dev->stats.tx_stat }, - { MT_TX_AGG_STAT, 1, dev->stats.aggr_stat }, - { MT_MPDU_DENSITY_CNT, 1, dev->stats.zero_len_del }, - { MT_TX_AGG_CNT_BASE0, 8, &dev->stats.aggr_n[0] }, - { MT_TX_AGG_CNT_BASE1, 8, &dev->stats.aggr_n[16] }, - }; - u32 sum, n; - int i, j, k; - - /* Note: using MCU_RANDOM_READ is actually slower then reading all the - * registers by hand. MCU takes ca. 20ms to complete read of 24 - * registers while reading them one by one will takes roughly - * 24*200us =~ 5ms. - */ - - k = 0; - n = 0; - sum = 0; - for (i = 0; i < ARRAY_SIZE(spans); i++) - for (j = 0; j < spans[i].span; j++) { - u32 val = mt76_rr(dev, spans[i].addr_base + j * 4); - - spans[i].stat_base[j * 2] += val & 0xffff; - spans[i].stat_base[j * 2 + 1] += val >> 16; - - /* Calculate average AMPDU length */ - if (spans[i].addr_base != MT_TX_AGG_CNT_BASE0 && - spans[i].addr_base != MT_TX_AGG_CNT_BASE1) - continue; - - n += (val >> 16) + (val & 0xffff); - sum += (val & 0xffff) * (1 + k * 2) + - (val >> 16) * (2 + k * 2); - k++; - } - - atomic_set(&dev->avg_ampdu_len, n ? DIV_ROUND_CLOSEST(sum, n) : 1); - - mt76x0_check_mac_err(dev); - - ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mac_work, 10 * HZ); -} - -void mt76x0_mac_set_ampdu_factor(struct mt76x02_dev *dev) -{ - struct ieee80211_sta *sta; - struct mt76_wcid *wcid; - void *msta; - u8 min_factor = 3; - int i; - - rcu_read_lock(); - for (i = 0; i < ARRAY_SIZE(dev->mt76.wcid); i++) { - wcid = rcu_dereference(dev->mt76.wcid[i]); - if (!wcid) - continue; - - msta = container_of(wcid, struct mt76x02_sta, wcid); - sta = container_of(msta, struct ieee80211_sta, drv_priv); - - min_factor = min(min_factor, sta->ht_cap.ampdu_factor); - } - rcu_read_unlock(); - - mt76_wr(dev, MT_MAX_LEN_CFG, 0xa0fff | - FIELD_PREP(MT_MAX_LEN_CFG_AMPDU, min_factor)); -} |