/*
 * Copyright (C) 2016 Felix Fietkau <nbd@openwrt.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include "mt7603.h"

void mt7603_set_irq_mask(struct mt7603_dev *dev, u32 clear, u32 set)
{
	unsigned long flags;

	spin_lock_irqsave(&dev->irq_lock, flags);
	dev->irqmask &= ~clear;
	dev->irqmask |= set;
	mt76_wr(dev, MT_INT_MASK_CSR, dev->irqmask);
	spin_unlock_irqrestore(&dev->irq_lock, flags);
}

void mt7603_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q)
{
	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
	mt7603_irq_enable(dev, MT_INT_RX_DONE(q));
}

irqreturn_t mt7603_irq_handler(int irq, void *dev_instance)
{
	struct mt7603_dev *dev = dev_instance;
	u32 intr;

	intr = mt76_rr(dev, MT_INT_SOURCE_CSR);
	mt76_wr(dev, MT_INT_SOURCE_CSR, intr);

	if (!test_bit(MT76_STATE_INITIALIZED, &dev->mt76.state))
		return IRQ_NONE;

	intr &= dev->irqmask;

	if (intr & MT_INT_MAC_IRQ3) {
		u32 hwintr = mt76_rr(dev, MT_HW_INT_STATUS(3));
		mt76_wr(dev, MT_HW_INT_STATUS(3), hwintr);
		if (hwintr & MT_HW_INT3_PRE_TBTT0)
			tasklet_schedule(&dev->pre_tbtt_tasklet);
	}

	if (intr & MT_INT_TX_DONE_ALL) {
		mt7603_irq_disable(dev, MT_INT_TX_DONE_ALL);
		tasklet_schedule(&dev->tx_tasklet);
	}

	if (intr & MT_INT_RX_DONE(0)) {
		mt7603_irq_disable(dev, MT_INT_RX_DONE(0));
		napi_schedule(&dev->mt76.napi[0]);
	}

	if (intr & MT_INT_RX_DONE(1)) {
		mt7603_irq_disable(dev, MT_INT_RX_DONE(1));
		napi_schedule(&dev->mt76.napi[1]);
	}

	return IRQ_HANDLED;
}

u32 mt7603_reg_map(struct mt7603_dev *dev, u32 addr)
{
	u32 base = addr & GENMASK(31, 19);
	u32 offset = addr & GENMASK(18, 0);

	mt76_wr(dev, MT_MCU_PCIE_REMAP_2, base);

	return MT_PCIE_REMAP_BASE_2 + offset;
}