From patchwork Thu Sep 27 09:01:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 10617615 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 75125913 for ; Thu, 27 Sep 2018 09:02:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 647C22AB12 for ; Thu, 27 Sep 2018 09:02:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 57B1D2AD0C; Thu, 27 Sep 2018 09:02:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D166F2AB12 for ; Thu, 27 Sep 2018 09:02:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727330AbeI0PTU (ORCPT ); Thu, 27 Sep 2018 11:19:20 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:34745 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727154AbeI0PTT (ORCPT ); Thu, 27 Sep 2018 11:19:19 -0400 Received: by mail-wr1-f68.google.com with SMTP id z4-v6so324125wrb.1 for ; Thu, 27 Sep 2018 02:02:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=ISf0X8KOnis/N1e7N6vQI4W0Fl4YQlCQ+XaHWw3R2Bc=; b=cRcpaVi5Kwntomb3mUj/LWEgxqBVWGwjb43wxdxtvrvTArX6YloCtqxbiqWuDHjD2b Fn/6McMQt5n5QvpNc2CnIktTcatXTG4/k35xLfVD9RjdXc3KhORiMM7vu7UxYK9Sd02y F02Vpwc35dQQBPiHBfCxnvgTjbqGtg6R/9HdQaq95qM39y8ngvF3s4UXr74SJ+/5JkNo IMLU3pwpCx5j440e2Nka+4m/gEd2QOZGPouI3I9uWOe+tqn9E5iV8pVO1BOVk1cTUYB7 r2UBh5EyWvww4GMv2ZoUWodSfaqhDvqa9R+disx+4/94wiGc8nEb7FSXzl7BofydqyYC JO4w== X-Gm-Message-State: ABuFfog3zddaqq6JY2epShLgx8/dQi8LL7Ja7tS5IaHp5EEIihWQAmdN fyJyjp1sfKFOjRiqLFb7sB9koA== X-Google-Smtp-Source: ACcGV60h5nVuDqXdecZX1FwgiyID9QnT4/wFP9JH1llSVXMhIO7S0gbFKEhMtpWNqmN+9TKyeUOE9A== X-Received: by 2002:adf:e98d:: with SMTP id h13-v6mr8338728wrm.238.1538038924671; Thu, 27 Sep 2018 02:02:04 -0700 (PDT) Received: from localhost.localdomain.com (nat-pool-mxp-t.redhat.com. [149.6.153.186]) by smtp.gmail.com with ESMTPSA id a17-v6sm1802382wme.40.2018.09.27.02.02.03 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 27 Sep 2018 02:02:04 -0700 (PDT) From: Lorenzo Bianconi To: nbd@nbd.name Cc: sgruszka@redhat.com, linux-wireless@vger.kernel.org Subject: [PATCH 03/26] mt76: add mt76x02_dma_enable/mt76x02_dma_disable utility routines Date: Thu, 27 Sep 2018 11:01:32 +0200 Message-Id: <829c1c000477a7600add8319e5a3cff46b690ff6.1538036134.git.lorenzo.bianconi@redhat.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Introduce mt76x02_dma_enable and mt76x02_dma_disable utility routines in order to be reused in mt76x0 mac configuration and remove duplicated code Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/Makefile | 2 +- .../net/wireless/mediatek/mt76/mt76x02_dma.c | 51 +++++++++++++++++++ .../net/wireless/mediatek/mt76/mt76x02_dma.h | 3 ++ .../net/wireless/mediatek/mt76/mt76x2_init.c | 20 +------- 4 files changed, 57 insertions(+), 19 deletions(-) create mode 100644 drivers/net/wireless/mediatek/mt76/mt76x02_dma.c diff --git a/drivers/net/wireless/mediatek/mt76/Makefile b/drivers/net/wireless/mediatek/mt76/Makefile index 1fc7450650ee..0cde9dff74a3 100644 --- a/drivers/net/wireless/mediatek/mt76/Makefile +++ b/drivers/net/wireless/mediatek/mt76/Makefile @@ -16,7 +16,7 @@ CFLAGS_trace.o := -I$(src) CFLAGS_usb_trace.o := -I$(src) mt76x02-lib-y := mt76x02_util.o mt76x02_mac.o mt76x02_mcu.o \ - mt76x02_eeprom.o mt76x02_phy.o + mt76x02_eeprom.o mt76x02_phy.o mt76x02_dma.o mt76x02-usb-y := mt76x02_usb_mcu.o mt76x02_usb_core.o diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_dma.c b/drivers/net/wireless/mediatek/mt76/mt76x02_dma.c new file mode 100644 index 000000000000..f471c3a0674a --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_dma.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2016 Felix Fietkau + * Copyright (C) 2018 Lorenzo Bianconi + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include + +#include "mt76.h" +#include "mt76x02_dma.h" +#include "mt76x02_regs.h" + +void mt76x02_dma_enable(struct mt76_dev *dev) +{ + u32 val; + + __mt76_wr(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_ENABLE_TX); + mt76x02_wait_for_wpdma(dev, 1000); + usleep_range(50, 100); + + val = FIELD_PREP(MT_WPDMA_GLO_CFG_DMA_BURST_SIZE, 3) | + MT_WPDMA_GLO_CFG_TX_DMA_EN | + MT_WPDMA_GLO_CFG_RX_DMA_EN; + __mt76_set(dev, MT_WPDMA_GLO_CFG, val); + __mt76_clear(dev, MT_WPDMA_GLO_CFG, + MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE); +} +EXPORT_SYMBOL_GPL(mt76x02_dma_enable); + +void mt76x02_dma_disable(struct mt76_dev *dev) +{ + u32 val = __mt76_rr(dev, MT_WPDMA_GLO_CFG); + + val &= MT_WPDMA_GLO_CFG_DMA_BURST_SIZE | + MT_WPDMA_GLO_CFG_BIG_ENDIAN | + MT_WPDMA_GLO_CFG_HDR_SEG_LEN; + val |= MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE; + __mt76_wr(dev, MT_WPDMA_GLO_CFG, val); +} +EXPORT_SYMBOL_GPL(mt76x02_dma_disable); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_dma.h b/drivers/net/wireless/mediatek/mt76/mt76x02_dma.h index 2396d49a84dd..0b78857c9b4c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_dma.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_dma.h @@ -67,4 +67,7 @@ mt76x02_wait_for_wpdma(struct mt76_dev *dev, int timeout) 0, timeout); } +void mt76x02_dma_enable(struct mt76_dev *dev); +void mt76x02_dma_disable(struct mt76_dev *dev); + #endif /* __MT76x02_DMA_H */ diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2_init.c index 68244b47312a..bd52c8b2ee9f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2_init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2_init.c @@ -206,16 +206,7 @@ int mt76x2_mac_start(struct mt76x2_dev *dev) memset(dev->aggr_stats, 0, sizeof(dev->aggr_stats)); - mt76_wr(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_ENABLE_TX); - mt76x02_wait_for_wpdma(&dev->mt76, 1000); - usleep_range(50, 100); - - mt76_set(dev, MT_WPDMA_GLO_CFG, - MT_WPDMA_GLO_CFG_TX_DMA_EN | - MT_WPDMA_GLO_CFG_RX_DMA_EN); - - mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE); - + mt76x02_dma_enable(&dev->mt76); mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); mt76_wr(dev, MT_MAC_SYS_CTRL, @@ -354,20 +345,13 @@ int mt76x2_init_hardware(struct mt76x2_dev *dev) 0xc000, 0xc000, }; - u32 val; int ret; dev->beacon_offsets = beacon_offsets; tasklet_init(&dev->pre_tbtt_tasklet, mt76x2_pre_tbtt_tasklet, (unsigned long) dev); - val = mt76_rr(dev, MT_WPDMA_GLO_CFG); - val &= MT_WPDMA_GLO_CFG_DMA_BURST_SIZE | - MT_WPDMA_GLO_CFG_BIG_ENDIAN | - MT_WPDMA_GLO_CFG_HDR_SEG_LEN; - val |= MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE; - mt76_wr(dev, MT_WPDMA_GLO_CFG, val); - + mt76x02_dma_disable(&dev->mt76); mt76x2_reset_wlan(dev, true); mt76x2_power_on(dev);