diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtw89/phy.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/phy.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c index 81f73821e3fc..dfbf59895e4e 100644 --- a/drivers/net/wireless/realtek/rtw89/phy.c +++ b/drivers/net/wireless/realtek/rtw89/phy.c @@ -725,6 +725,53 @@ u8 rtw89_phy_get_txsc(struct rtw89_dev *rtwdev, } EXPORT_SYMBOL(rtw89_phy_get_txsc); +u8 rtw89_phy_get_txsb(struct rtw89_dev *rtwdev, const struct rtw89_chan *chan, + enum rtw89_bandwidth dbw) +{ + enum rtw89_bandwidth cbw = chan->band_width; + u8 pri_ch = chan->primary_channel; + u8 central_ch = chan->channel; + u8 txsb_idx = 0; + + if (cbw == dbw || cbw == RTW89_CHANNEL_WIDTH_20) + return txsb_idx; + + switch (cbw) { + case RTW89_CHANNEL_WIDTH_40: + txsb_idx = pri_ch > central_ch ? 1 : 0; + break; + case RTW89_CHANNEL_WIDTH_80: + if (dbw == RTW89_CHANNEL_WIDTH_20) + txsb_idx = (pri_ch - central_ch + 6) / 4; + else + txsb_idx = pri_ch > central_ch ? 1 : 0; + break; + case RTW89_CHANNEL_WIDTH_160: + if (dbw == RTW89_CHANNEL_WIDTH_20) + txsb_idx = (pri_ch - central_ch + 14) / 4; + else if (dbw == RTW89_CHANNEL_WIDTH_40) + txsb_idx = (pri_ch - central_ch + 12) / 8; + else + txsb_idx = pri_ch > central_ch ? 1 : 0; + break; + case RTW89_CHANNEL_WIDTH_320: + if (dbw == RTW89_CHANNEL_WIDTH_20) + txsb_idx = (pri_ch - central_ch + 30) / 4; + else if (dbw == RTW89_CHANNEL_WIDTH_40) + txsb_idx = (pri_ch - central_ch + 28) / 8; + else if (dbw == RTW89_CHANNEL_WIDTH_80) + txsb_idx = (pri_ch - central_ch + 24) / 16; + else + txsb_idx = pri_ch > central_ch ? 1 : 0; + break; + default: + break; + } + + return txsb_idx; +} +EXPORT_SYMBOL(rtw89_phy_get_txsb); + static bool rtw89_phy_check_swsi_busy(struct rtw89_dev *rtwdev) { return !!rtw89_phy_read32_mask(rtwdev, R_SWSI_V1, B_SWSI_W_BUSY_V1) || |