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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/net/wireless/realtek/rtw89/chan.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtw89/chan.c')
-rw-r--r-- | drivers/net/wireless/realtek/rtw89/chan.c | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/chan.c b/drivers/net/wireless/realtek/rtw89/chan.c new file mode 100644 index 0000000000..e1bc3606f9 --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/chan.c @@ -0,0 +1,426 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright(c) 2020-2022 Realtek Corporation + */ + +#include "chan.h" +#include "debug.h" +#include "fw.h" +#include "ps.h" +#include "util.h" + +static enum rtw89_subband rtw89_get_subband_type(enum rtw89_band band, + u8 center_chan) +{ + switch (band) { + default: + case RTW89_BAND_2G: + switch (center_chan) { + default: + case 1 ... 14: + return RTW89_CH_2G; + } + case RTW89_BAND_5G: + switch (center_chan) { + default: + case 36 ... 64: + return RTW89_CH_5G_BAND_1; + case 100 ... 144: + return RTW89_CH_5G_BAND_3; + case 149 ... 177: + return RTW89_CH_5G_BAND_4; + } + case RTW89_BAND_6G: + switch (center_chan) { + default: + case 1 ... 29: + return RTW89_CH_6G_BAND_IDX0; + case 33 ... 61: + return RTW89_CH_6G_BAND_IDX1; + case 65 ... 93: + return RTW89_CH_6G_BAND_IDX2; + case 97 ... 125: + return RTW89_CH_6G_BAND_IDX3; + case 129 ... 157: + return RTW89_CH_6G_BAND_IDX4; + case 161 ... 189: + return RTW89_CH_6G_BAND_IDX5; + case 193 ... 221: + return RTW89_CH_6G_BAND_IDX6; + case 225 ... 253: + return RTW89_CH_6G_BAND_IDX7; + } + } +} + +static enum rtw89_sc_offset rtw89_get_primary_chan_idx(enum rtw89_bandwidth bw, + u32 center_freq, + u32 primary_freq) +{ + u8 primary_chan_idx; + u32 offset; + + switch (bw) { + default: + case RTW89_CHANNEL_WIDTH_20: + primary_chan_idx = RTW89_SC_DONT_CARE; + break; + case RTW89_CHANNEL_WIDTH_40: + if (primary_freq > center_freq) + primary_chan_idx = RTW89_SC_20_UPPER; + else + primary_chan_idx = RTW89_SC_20_LOWER; + break; + case RTW89_CHANNEL_WIDTH_80: + case RTW89_CHANNEL_WIDTH_160: + if (primary_freq > center_freq) { + offset = (primary_freq - center_freq - 10) / 20; + primary_chan_idx = RTW89_SC_20_UPPER + offset * 2; + } else { + offset = (center_freq - primary_freq - 10) / 20; + primary_chan_idx = RTW89_SC_20_LOWER + offset * 2; + } + break; + } + + return primary_chan_idx; +} + +void rtw89_chan_create(struct rtw89_chan *chan, u8 center_chan, u8 primary_chan, + enum rtw89_band band, enum rtw89_bandwidth bandwidth) +{ + enum nl80211_band nl_band = rtw89_hw_to_nl80211_band(band); + u32 center_freq, primary_freq; + + memset(chan, 0, sizeof(*chan)); + chan->channel = center_chan; + chan->primary_channel = primary_chan; + chan->band_type = band; + chan->band_width = bandwidth; + + center_freq = ieee80211_channel_to_frequency(center_chan, nl_band); + primary_freq = ieee80211_channel_to_frequency(primary_chan, nl_band); + + chan->freq = center_freq; + chan->subband_type = rtw89_get_subband_type(band, center_chan); + chan->pri_ch_idx = rtw89_get_primary_chan_idx(bandwidth, center_freq, + primary_freq); +} + +bool rtw89_assign_entity_chan(struct rtw89_dev *rtwdev, + enum rtw89_sub_entity_idx idx, + const struct rtw89_chan *new) +{ + struct rtw89_hal *hal = &rtwdev->hal; + struct rtw89_chan *chan = &hal->sub[idx].chan; + struct rtw89_chan_rcd *rcd = &hal->sub[idx].rcd; + bool band_changed; + + rcd->prev_primary_channel = chan->primary_channel; + rcd->prev_band_type = chan->band_type; + band_changed = new->band_type != chan->band_type; + rcd->band_changed = band_changed; + + *chan = *new; + return band_changed; +} + +static void __rtw89_config_entity_chandef(struct rtw89_dev *rtwdev, + enum rtw89_sub_entity_idx idx, + const struct cfg80211_chan_def *chandef, + bool from_stack) +{ + struct rtw89_hal *hal = &rtwdev->hal; + + hal->sub[idx].chandef = *chandef; + + if (from_stack) + set_bit(idx, hal->entity_map); +} + +void rtw89_config_entity_chandef(struct rtw89_dev *rtwdev, + enum rtw89_sub_entity_idx idx, + const struct cfg80211_chan_def *chandef) +{ + __rtw89_config_entity_chandef(rtwdev, idx, chandef, true); +} + +void rtw89_config_roc_chandef(struct rtw89_dev *rtwdev, + enum rtw89_sub_entity_idx idx, + const struct cfg80211_chan_def *chandef) +{ + struct rtw89_hal *hal = &rtwdev->hal; + enum rtw89_sub_entity_idx cur; + + if (chandef) { + cur = atomic_cmpxchg(&hal->roc_entity_idx, + RTW89_SUB_ENTITY_IDLE, idx); + if (cur != RTW89_SUB_ENTITY_IDLE) { + rtw89_debug(rtwdev, RTW89_DBG_TXRX, + "ROC still processing on entity %d\n", idx); + return; + } + + hal->roc_chandef = *chandef; + } else { + cur = atomic_cmpxchg(&hal->roc_entity_idx, idx, + RTW89_SUB_ENTITY_IDLE); + if (cur == idx) + return; + + if (cur == RTW89_SUB_ENTITY_IDLE) + rtw89_debug(rtwdev, RTW89_DBG_TXRX, + "ROC already finished on entity %d\n", idx); + else + rtw89_debug(rtwdev, RTW89_DBG_TXRX, + "ROC is processing on entity %d\n", cur); + } +} + +static void rtw89_config_default_chandef(struct rtw89_dev *rtwdev) +{ + struct cfg80211_chan_def chandef = {0}; + + rtw89_get_default_chandef(&chandef); + __rtw89_config_entity_chandef(rtwdev, RTW89_SUB_ENTITY_0, &chandef, false); +} + +void rtw89_entity_init(struct rtw89_dev *rtwdev) +{ + struct rtw89_hal *hal = &rtwdev->hal; + + bitmap_zero(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY); + atomic_set(&hal->roc_entity_idx, RTW89_SUB_ENTITY_IDLE); + rtw89_config_default_chandef(rtwdev); +} + +enum rtw89_entity_mode rtw89_entity_recalc(struct rtw89_dev *rtwdev) +{ + struct rtw89_hal *hal = &rtwdev->hal; + const struct cfg80211_chan_def *chandef; + enum rtw89_entity_mode mode; + struct rtw89_chan chan; + u8 weight; + u8 last; + u8 idx; + + weight = bitmap_weight(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY); + switch (weight) { + default: + rtw89_warn(rtwdev, "unknown ent chan weight: %d\n", weight); + bitmap_zero(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY); + fallthrough; + case 0: + rtw89_config_default_chandef(rtwdev); + fallthrough; + case 1: + last = RTW89_SUB_ENTITY_0; + mode = RTW89_ENTITY_MODE_SCC; + break; + case 2: + last = RTW89_SUB_ENTITY_1; + mode = rtw89_get_entity_mode(rtwdev); + if (mode == RTW89_ENTITY_MODE_MCC) + break; + + mode = RTW89_ENTITY_MODE_MCC_PREPARE; + break; + } + + for (idx = 0; idx <= last; idx++) { + chandef = rtw89_chandef_get(rtwdev, idx); + rtw89_get_channel_params(chandef, &chan); + if (chan.channel == 0) { + WARN(1, "Invalid channel on chanctx %d\n", idx); + return RTW89_ENTITY_MODE_INVALID; + } + + rtw89_assign_entity_chan(rtwdev, idx, &chan); + } + + rtw89_set_entity_mode(rtwdev, mode); + return mode; +} + +static void rtw89_chanctx_notify(struct rtw89_dev *rtwdev, + enum rtw89_chanctx_state state) +{ + const struct rtw89_chip_info *chip = rtwdev->chip; + const struct rtw89_chanctx_listener *listener = chip->chanctx_listener; + int i; + + if (!listener) + return; + + for (i = 0; i < NUM_OF_RTW89_CHANCTX_CALLBACKS; i++) { + if (!listener->callbacks[i]) + continue; + + rtw89_debug(rtwdev, RTW89_DBG_CHAN, + "chanctx notify listener: cb %d, state %d\n", + i, state); + + listener->callbacks[i](rtwdev, state); + } +} + +static int rtw89_mcc_start(struct rtw89_dev *rtwdev) +{ + if (rtwdev->scanning) + rtw89_hw_scan_abort(rtwdev, rtwdev->scan_info.scanning_vif); + + rtw89_leave_lps(rtwdev); + + rtw89_debug(rtwdev, RTW89_DBG_CHAN, "MCC start\n"); + rtw89_chanctx_notify(rtwdev, RTW89_CHANCTX_STATE_MCC_START); + return 0; +} + +static void rtw89_mcc_stop(struct rtw89_dev *rtwdev) +{ + rtw89_debug(rtwdev, RTW89_DBG_CHAN, "MCC stop\n"); + rtw89_chanctx_notify(rtwdev, RTW89_CHANCTX_STATE_MCC_STOP); +} + +void rtw89_chanctx_work(struct work_struct *work) +{ + struct rtw89_dev *rtwdev = container_of(work, struct rtw89_dev, + chanctx_work.work); + enum rtw89_entity_mode mode; + int ret; + + mutex_lock(&rtwdev->mutex); + + mode = rtw89_get_entity_mode(rtwdev); + switch (mode) { + case RTW89_ENTITY_MODE_MCC_PREPARE: + rtw89_set_entity_mode(rtwdev, RTW89_ENTITY_MODE_MCC); + rtw89_set_channel(rtwdev); + + ret = rtw89_mcc_start(rtwdev); + if (ret) + rtw89_warn(rtwdev, "failed to start MCC: %d\n", ret); + break; + default: + break; + } + + mutex_unlock(&rtwdev->mutex); +} + +void rtw89_queue_chanctx_work(struct rtw89_dev *rtwdev) +{ + enum rtw89_entity_mode mode; + u32 delay; + + mode = rtw89_get_entity_mode(rtwdev); + switch (mode) { + default: + return; + case RTW89_ENTITY_MODE_MCC_PREPARE: + delay = ieee80211_tu_to_usec(RTW89_CHANCTX_TIME_MCC_PREPARE); + break; + } + + rtw89_debug(rtwdev, RTW89_DBG_CHAN, + "queue chanctx work for mode %d with delay %d us\n", + mode, delay); + ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->chanctx_work, + usecs_to_jiffies(delay)); +} + +int rtw89_chanctx_ops_add(struct rtw89_dev *rtwdev, + struct ieee80211_chanctx_conf *ctx) +{ + struct rtw89_hal *hal = &rtwdev->hal; + struct rtw89_chanctx_cfg *cfg = (struct rtw89_chanctx_cfg *)ctx->drv_priv; + const struct rtw89_chip_info *chip = rtwdev->chip; + u8 idx; + + idx = find_first_zero_bit(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY); + if (idx >= chip->support_chanctx_num) + return -ENOENT; + + rtw89_config_entity_chandef(rtwdev, idx, &ctx->def); + rtw89_set_channel(rtwdev); + cfg->idx = idx; + hal->sub[idx].cfg = cfg; + return 0; +} + +void rtw89_chanctx_ops_remove(struct rtw89_dev *rtwdev, + struct ieee80211_chanctx_conf *ctx) +{ + struct rtw89_hal *hal = &rtwdev->hal; + struct rtw89_chanctx_cfg *cfg = (struct rtw89_chanctx_cfg *)ctx->drv_priv; + enum rtw89_entity_mode mode; + struct rtw89_vif *rtwvif; + u8 drop, roll; + + drop = cfg->idx; + if (drop != RTW89_SUB_ENTITY_0) + goto out; + + roll = find_next_bit(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY, drop + 1); + + /* Follow rtw89_config_default_chandef() when rtw89_entity_recalc(). */ + if (roll == NUM_OF_RTW89_SUB_ENTITY) + goto out; + + /* RTW89_SUB_ENTITY_0 is going to release, and another exists. + * Make another roll down to RTW89_SUB_ENTITY_0 to replace. + */ + hal->sub[roll].cfg->idx = RTW89_SUB_ENTITY_0; + hal->sub[RTW89_SUB_ENTITY_0] = hal->sub[roll]; + + rtw89_for_each_rtwvif(rtwdev, rtwvif) { + if (rtwvif->sub_entity_idx == roll) + rtwvif->sub_entity_idx = RTW89_SUB_ENTITY_0; + } + + atomic_cmpxchg(&hal->roc_entity_idx, roll, RTW89_SUB_ENTITY_0); + + drop = roll; + +out: + mode = rtw89_get_entity_mode(rtwdev); + switch (mode) { + case RTW89_ENTITY_MODE_MCC: + rtw89_mcc_stop(rtwdev); + break; + default: + break; + } + + clear_bit(drop, hal->entity_map); + rtw89_set_channel(rtwdev); +} + +void rtw89_chanctx_ops_change(struct rtw89_dev *rtwdev, + struct ieee80211_chanctx_conf *ctx, + u32 changed) +{ + struct rtw89_chanctx_cfg *cfg = (struct rtw89_chanctx_cfg *)ctx->drv_priv; + u8 idx = cfg->idx; + + if (changed & IEEE80211_CHANCTX_CHANGE_WIDTH) { + rtw89_config_entity_chandef(rtwdev, idx, &ctx->def); + rtw89_set_channel(rtwdev); + } +} + +int rtw89_chanctx_ops_assign_vif(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif, + struct ieee80211_chanctx_conf *ctx) +{ + struct rtw89_chanctx_cfg *cfg = (struct rtw89_chanctx_cfg *)ctx->drv_priv; + + rtwvif->sub_entity_idx = cfg->idx; + return 0; +} + +void rtw89_chanctx_ops_unassign_vif(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif, + struct ieee80211_chanctx_conf *ctx) +{ + rtwvif->sub_entity_idx = RTW89_SUB_ENTITY_0; +} |