From patchwork Wed Apr 19 10:01:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kaistra X-Patchwork-Id: 676139 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD6F0C77B75 for ; Wed, 19 Apr 2023 10:02:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232823AbjDSKC2 (ORCPT ); Wed, 19 Apr 2023 06:02:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232916AbjDSKCQ (ORCPT ); Wed, 19 Apr 2023 06:02:16 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0FC1A1FE7 for ; Wed, 19 Apr 2023 03:02:12 -0700 (PDT) From: Martin Kaistra DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1681898531; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XSvcLS6hA0GGdNgI2qhZCvztLwZbV1NJVpzs6qzr9XI=; b=oCKu7oLRLIzPGluIErMALxnNapSQ/htuniVrRVutV7oepvSdceJUUAg92I5zh3MVcKKU+u gPfAShvFv3jPzk0lMvVQ5IiJTgfyRMB2X1AzADlL4/e2omK/mo7V/T6+s21mSrDUfkFbNH Rwnoh20J62H64OEJylGpk1K8ftLtHhYvJmwZecpdY7zSt9IVYWXpIiakRnEDPV48/ediFD vFvK0ZBJrs8lCbkVD2S1q3Jxbq6A7fpo7ngQvdkPBjp+HWbKIZs9czLGj25TuksMVk/e8x CrB5NiCe0ATwBp9kKCpl7FO7oajluMMKzoQ9IFMcUYrxdG45KupdO7E7vqSAFQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1681898531; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XSvcLS6hA0GGdNgI2qhZCvztLwZbV1NJVpzs6qzr9XI=; b=Gc/aJ8Y2y/x0oxV8dbsQNDdTvw+urFOfxoYMCEIvHT3Q66XIbxD5hEn5RxbGmEdPqLFNO+ 6K7UMvMsSHhbDXBQ== To: linux-wireless@vger.kernel.org Cc: Jes Sorensen , Kalle Valo , Ping-Ke Shih , Bitterblue Smith , Sebastian Andrzej Siewior Subject: [PATCH v2 03/18] wifi: rtl8xxxu: Add beacon functions Date: Wed, 19 Apr 2023 12:01:30 +0200 Message-Id: <20230419100145.159191-4-martin.kaistra@linutronix.de> In-Reply-To: <20230419100145.159191-1-martin.kaistra@linutronix.de> References: <20230419100145.159191-1-martin.kaistra@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add a workqueue to update the beacon contents asynchronously and implement downloading the beacon to the HW and starting beacon tx like the vendor driver. Signed-off-by: Martin Kaistra --- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 3 + .../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 84 +++++++++++++++++++ .../wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h | 3 + 3 files changed, 90 insertions(+) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index cb8c019b63372..93f744cd8d6d8 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1745,6 +1745,8 @@ struct rtl8xxxu_priv { bool shutdown; struct work_struct rx_urb_wq; + bool beacon_enabled; + u8 mac_addr[ETH_ALEN]; char chip_name[8]; char chip_vendor[8]; @@ -1851,6 +1853,7 @@ struct rtl8xxxu_priv { struct delayed_work ra_watchdog; struct work_struct c2hcmd_work; struct sk_buff_head c2hcmd_queue; + struct work_struct update_beacon_work; struct rtl8xxxu_btcoex bt_coex; struct rtl8xxxu_ra_report ra_report; struct rtl8xxxu_cfo_tracking cfo_tracking; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 2c2513cee3a63..960e3efcb0ee2 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -1104,6 +1104,24 @@ static void rtl8xxxu_stop_tx_beacon(struct rtl8xxxu_priv *priv) val8 = rtl8xxxu_read8(priv, REG_TBTT_PROHIBIT + 2); val8 &= ~BIT(0); rtl8xxxu_write8(priv, REG_TBTT_PROHIBIT + 2, val8); + + priv->beacon_enabled = false; +} + +static void rtl8xxxu_start_tx_beacon(struct rtl8xxxu_priv *priv) +{ + u8 val8; + + val8 = rtl8xxxu_read8(priv, REG_FWHW_TXQ_CTRL + 2); + val8 |= EN_BCNQ_DL >> 16; + rtl8xxxu_write8(priv, REG_FWHW_TXQ_CTRL + 2, val8); + + rtl8xxxu_write8(priv, REG_TBTT_PROHIBIT + 1, 0x80); + val8 = rtl8xxxu_read8(priv, REG_TBTT_PROHIBIT + 2); + val8 &= 0xF0; + rtl8xxxu_write8(priv, REG_TBTT_PROHIBIT + 2, val8); + + priv->beacon_enabled = true; } @@ -4885,6 +4903,22 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, dev_dbg(dev, "Changed BASIC_RATES!\n"); rtl8xxxu_set_basic_rates(priv, bss_conf->basic_rates); } + + if (changed & BSS_CHANGED_BEACON || + (changed & BSS_CHANGED_BEACON_ENABLED && + bss_conf->enable_beacon)) { + if (!priv->beacon_enabled) { + dev_dbg(dev, "BSS_CHANGED_BEACON_ENABLED\n"); + rtl8xxxu_start_tx_beacon(priv); + } + schedule_work(&priv->update_beacon_work); + } + + if (changed & BSS_CHANGED_BEACON_ENABLED && !bss_conf->enable_beacon) { + if (priv->beacon_enabled) + rtl8xxxu_stop_tx_beacon(priv); + } + error: return; } @@ -5466,6 +5500,55 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, dev_kfree_skb(skb); } +static void rtl8xxxu_send_beacon_frame(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rtl8xxxu_priv *priv = hw->priv; + struct sk_buff *skb = ieee80211_beacon_get(hw, vif, 0); + struct device *dev = &priv->udev->dev; + int retry; + u8 val8; + + /* BCN_VALID, write 1 to clear, cleared by SW */ + val8 = rtl8xxxu_read8(priv, REG_TDECTRL + 2); + val8 |= BIT_BCN_VALID >> 16; + rtl8xxxu_write8(priv, REG_TDECTRL + 2, val8); + + /* SW_BCN_SEL - Port0 */ + val8 = rtl8xxxu_read8(priv, REG_DWBCN1_CTRL_8723B + 2); + val8 &= ~(BIT_SW_BCN_SEL >> 16); + rtl8xxxu_write8(priv, REG_DWBCN1_CTRL_8723B + 2, val8); + + if (skb) + rtl8xxxu_tx(hw, NULL, skb); + + retry = 100; + do { + val8 = rtl8xxxu_read8(priv, REG_TDECTRL + 2); + if (val8 & (BIT_BCN_VALID >> 16)) + break; + usleep_range(10, 20); + } while (--retry); + + if (!retry) + dev_err(dev, "%s: Failed to read beacon valid bit\n", __func__); +} + +static void rtl8xxxu_update_beacon_work_callback(struct work_struct *work) +{ + struct rtl8xxxu_priv *priv = + container_of(work, struct rtl8xxxu_priv, update_beacon_work); + struct ieee80211_hw *hw = priv->hw; + struct ieee80211_vif *vif = priv->vif; + + if (!vif) { + WARN_ONCE(true, "no vif to update beacon\n"); + return; + } + + rtl8xxxu_send_beacon_frame(hw, vif); +} + void rtl8723au_rx_parse_phystats(struct rtl8xxxu_priv *priv, struct ieee80211_rx_status *rx_status, struct rtl8723au_phy_stats *phy_stats, @@ -7234,6 +7317,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface, spin_lock_init(&priv->rx_urb_lock); INIT_WORK(&priv->rx_urb_wq, rtl8xxxu_rx_urb_work); INIT_DELAYED_WORK(&priv->ra_watchdog, rtl8xxxu_watchdog_callback); + INIT_WORK(&priv->update_beacon_work, rtl8xxxu_update_beacon_work_callback); skb_queue_head_init(&priv->c2hcmd_queue); usb_set_intfdata(interface, hw); diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h index 4dffbab494c3b..ad285e4ac0ec4 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h @@ -456,6 +456,7 @@ #define REG_FIFOPAGE 0x0204 #define REG_TDECTRL 0x0208 +#define BIT_BCN_VALID BIT(16) #define REG_DWBCN0_CTRL_8188F REG_TDECTRL @@ -470,6 +471,7 @@ #define AUTO_LLT_INIT_LLT BIT(16) #define REG_DWBCN1_CTRL_8723B 0x0228 +#define BIT_SW_BCN_SEL BIT(20) /* 0x0280 ~ 0x02FF RXDMA Configuration */ #define REG_RXDMA_AGG_PG_TH 0x0280 /* 0-7 : USB DMA size bits @@ -516,6 +518,7 @@ #define REG_FWHW_TXQ_CTRL 0x0420 #define FWHW_TXQ_CTRL_AMPDU_RETRY BIT(7) #define FWHW_TXQ_CTRL_XMIT_MGMT_ACK BIT(12) +#define EN_BCNQ_DL BIT(22) #define REG_HWSEQ_CTRL 0x0423 #define REG_TXPKTBUF_BCNQ_BDNY 0x0424