mirror of
https://github.com/outbackdingo/mt76.git
synced 2026-10-24 21:36:52 +00:00
108 lines
2.4 KiB
C
108 lines
2.4 KiB
C
/*
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* Copyright (C) 2015 Felix Fietkau <[email protected]>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "mt7603.h"
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struct mt7603_dev *mt7603_alloc_device(struct device *pdev)
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{
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struct ieee80211_hw *hw;
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struct mt7603_dev *dev;
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hw = ieee80211_alloc_hw(sizeof(*dev), &mt7603_ops);
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if (!hw)
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return NULL;
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dev = hw->priv;
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dev->mt76.dev = pdev;
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dev->mt76.hw = hw;
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return dev;
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}
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static bool
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wait_for_wpdma(struct mt7603_dev *dev)
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{
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return mt76_poll(dev, MT_WPDMA_GLO_CFG,
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MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
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MT_WPDMA_GLO_CFG_RX_DMA_BUSY,
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0, 1000);
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}
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static int
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mt7603_mac_reset(struct mt7603_dev *dev)
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{
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/* Disable MAC */
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mt76_set(dev, MT_WF_ARB_SCR, MT_WF_ARB_TX_DISABLE | MT_WF_ARB_RX_DISABLE);
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mt76_wr(dev, MT_WF_ARB_TQCR0, 0);
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mt76_clear(dev, MT_WF_ARB_RQCR, MT_WF_ARB_RQCR_RX_START);
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mt76_wr(dev, MT_WPDMA_GLO_CFG, 0x52000850);
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mt76_rmw(dev, MT_DMA_DCR0, 0xffff, 0xc0211000);
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mt76_wr(dev, MT_DMA_DCR1, GENMASK(13, 11));
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mt76_rmw(dev, MT_DMA_VCFR0, BIT(0), BIT(13));
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mt76_rmw(dev, MT_DMA_TMCFR0, BIT(0) | BIT(1), BIT(13));
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mt76_clear(dev, MT_WF_RMAC_TMR_PA, BIT(31));
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mt76_set(dev, MT_WF_RMAC_RMACDR, BIT(30));
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mt76_rmw(dev, MT_WF_RMAC_MAXMINLEN, 0xffffff, 0x19000);
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mt76_clear(dev, MT_WF_ARB_SCR, MT_WF_ARB_TX_DISABLE | MT_WF_ARB_RX_DISABLE);
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mt76_wr(dev, MT_WF_ARB_TQCR0, ~0);
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mt76_set(dev, MT_WF_ARB_RQCR, MT_WF_ARB_RQCR_RX_START);
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return 0;
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}
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int mt7603_mac_start(struct mt7603_dev *dev)
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{
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wait_for_wpdma(dev);
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udelay(50);
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mt76_set(dev, MT_WPDMA_GLO_CFG,
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MT_WPDMA_GLO_CFG_TX_DMA_EN |
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MT_WPDMA_GLO_CFG_RX_DMA_EN);
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mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE);
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mt7603_irq_enable(dev, MT_INT_RX_DONE_ALL | MT_INT_TX_DONE_ALL);
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return 0;
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}
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int mt7603_init_hardware(struct mt7603_dev *dev)
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{
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int ret;
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ret = mt7603_dma_init(dev);
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if (ret)
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return ret;
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ret = mt7603_mac_reset(dev);
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if (ret)
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return ret;
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set_bit(MT76_STATE_INITIALIZED, &dev->mt76.state);
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ret = mt7603_mac_start(dev);
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if (ret)
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return ret;
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ret = mt7603_mcu_init(dev);
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if (ret)
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return ret;
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return 0;
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}
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