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[220.133.8.232]) by smtp.gmail.com with ESMTPSA id u5sm2671465pfb.60.2019.05.03.00.21.57 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 03 May 2019 00:21:59 -0700 (PDT) From: Chris Chiu To: jes.sorensen@gmail.com, kvalo@codeaurora.org, davem@davemloft.net Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux@endlessm.com, Chris Chiu Subject: [RFC PATCH 1/2] rtl8xxxu: Add rate adaptive related data Date: Fri, 3 May 2019 15:21:45 +0800 Message-Id: <20190503072146.49999-2-chiu@endlessm.com> X-Mailer: git-send-email 2.17.2 (Apple Git-113) In-Reply-To: <20190503072146.49999-1-chiu@endlessm.com> References: <20190503072146.49999-1-chiu@endlessm.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add wireless mode, signal strength level, and rate table index to tell the firmware that we need to adjust the tx rate bitmap accordingly. --- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 45 +++++++++++++++++++ .../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 45 ++++++++++++++++++- 2 files changed, 89 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index 8828baf26e7b..771f58aa7cae 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1195,6 +1195,50 @@ struct rtl8723bu_c2h { struct rtl8xxxu_fileops; +/*mlme related.*/ +enum wireless_mode { + WIRELESS_MODE_UNKNOWN = 0, + //Sub-Element + WIRELESS_MODE_B = BIT(0), // tx: cck only , rx: cck only, hw: cck + WIRELESS_MODE_G = BIT(1), // tx: ofdm only, rx: ofdm & cck, hw: cck & ofdm + WIRELESS_MODE_A = BIT(2), // tx: ofdm only, rx: ofdm only, hw: ofdm only + WIRELESS_MODE_N_24G = BIT(3), // tx: MCS only, rx: MCS & cck, hw: MCS & cck + WIRELESS_MODE_N_5G = BIT(4), // tx: MCS only, rx: MCS & ofdm, hw: ofdm only + WIRELESS_AUTO = BIT(5), + WIRELESS_MODE_AC = BIT(6), + WIRELESS_MODE_MAX = (WIRELESS_MODE_B|WIRELESS_MODE_G|WIRELESS_MODE_A|WIRELESS_MODE_N_24G|WIRELESS_MODE_N_5G|WIRELESS_MODE_AC), +}; + +/* from rtlwifi/wifi.h */ +enum ratr_table_mode_new { + RATEID_IDX_BGN_40M_2SS = 0, + RATEID_IDX_BGN_40M_1SS = 1, + RATEID_IDX_BGN_20M_2SS_BN = 2, + RATEID_IDX_BGN_20M_1SS_BN = 3, + RATEID_IDX_GN_N2SS = 4, + RATEID_IDX_GN_N1SS = 5, + RATEID_IDX_BG = 6, + RATEID_IDX_G = 7, + RATEID_IDX_B = 8, + RATEID_IDX_VHT_2SS = 9, + RATEID_IDX_VHT_1SS = 10, + RATEID_IDX_MIX1 = 11, + RATEID_IDX_MIX2 = 12, + RATEID_IDX_VHT_3SS = 13, + RATEID_IDX_BGN_3SS = 14, +}; + +#define RTL8XXXU_RATR_STA_INIT 0 +#define RTL8XXXU_RATR_STA_HIGH 1 +#define RTL8XXXU_RATR_STA_MID 2 +#define RTL8XXXU_RATR_STA_LOW 3 + +struct rtl8xxxu_rate_adaptive { + u16 wireless_mode; + u8 ratr_index; + u8 rssi_level; /* INIT, HIGH, MIDDLE, LOW */ +} __packed; + struct rtl8xxxu_priv { struct ieee80211_hw *hw; struct usb_device *udev; @@ -1299,6 +1343,7 @@ struct rtl8xxxu_priv { u8 pi_enabled:1; u8 no_pape:1; u8 int_buf[USB_INTR_CONTENT_LENGTH]; + struct rtl8xxxu_rate_adaptive ra_info; }; struct rtl8xxxu_rx_urb { diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 039e5ca9d2e4..360e9bd837e5 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -4345,7 +4345,7 @@ void rtl8xxxu_gen2_update_rate_mask(struct rtl8xxxu_priv *priv, h2c.b_macid_cfg.ramask3 = (ramask >> 24) & 0xff; h2c.ramask.arg = 0x80; - h2c.b_macid_cfg.data1 = 0; + h2c.b_macid_cfg.data1 = priv->ra_info.ratr_index; if (sgi) h2c.b_macid_cfg.data1 |= BIT(7); @@ -4485,6 +4485,43 @@ static void rtl8xxxu_set_basic_rates(struct rtl8xxxu_priv *priv, u32 rate_cfg) rtl8xxxu_write8(priv, REG_INIRTS_RATE_SEL, rate_idx); } +static u16 +rtl8xxxu_wireless_mode(struct ieee80211_hw *hw, struct ieee80211_sta *sta) +{ + u16 network_type = WIRELESS_MODE_UNKNOWN; + u32 rate_mask; + + rate_mask = (sta->supp_rates[0] & 0xfff) | + (sta->ht_cap.mcs.rx_mask[0] << 12) | + (sta->ht_cap.mcs.rx_mask[0] << 20); + + if (hw->conf.chandef.chan->band == NL80211_BAND_5GHZ) + { + if (sta->vht_cap.vht_supported) + network_type = WIRELESS_MODE_AC; + else if (sta->ht_cap.ht_supported) + network_type = WIRELESS_MODE_N_5G; + + network_type |= WIRELESS_MODE_A; + } + else + { + if (sta->vht_cap.vht_supported) + network_type = WIRELESS_MODE_AC; + else if (sta->ht_cap.ht_supported) + network_type = WIRELESS_MODE_N_24G; + + if (sta->supp_rates[0] <= 0xf) + network_type |= WIRELESS_MODE_B; + else if (sta->supp_rates[0] & 0xf) + network_type |= (WIRELESS_MODE_B | WIRELESS_MODE_G); + else + network_type |= WIRELESS_MODE_G; + } + + return network_type; +} + static void rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf, u32 changed) @@ -4503,6 +4540,7 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, if (bss_conf->assoc) { u32 ramask; int sgi = 0; + struct rtl8xxxu_rate_adaptive *ra; rcu_read_lock(); sta = ieee80211_find_sta(vif, bss_conf->bssid); @@ -4527,6 +4565,11 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, sgi = 1; rcu_read_unlock(); + ra = &priv->ra_info; + ra->wireless_mode = rtl8xxxu_wireless_mode(hw, sta); + ra->ratr_index = RATEID_IDX_BGN_40M_2SS; + ra->rssi_level = RTL8XXXU_RATR_STA_INIT; + priv->fops->update_rate_mask(priv, ramask, sgi); rtl8xxxu_write8(priv, REG_BCN_MAX_ERR, 0xff);