drivers/net/wireless/mediatek/mt76/mt76x0/pci.c

/*
 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
 *
 * 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 <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>

#include "mt76x0.h"

static int
mt76x0e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
	struct mt76x0_dev *dev;
	int ret = -ENODEV;

	ret = pcim_enable_device(pdev);
	if (ret)
		return ret;

	ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
	if (ret)
		return ret;

	pci_set_master(pdev);

	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
	if (ret)
		return ret;

	dev = mt76x0_alloc_device(&pdev->dev, NULL);
	if (!dev)
		return -ENOMEM;

	mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);

	dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION);
	dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev);

/* error: */
	ieee80211_free_hw(mt76_hw(dev));
	return ret;
}

static void
mt76x0e_remove(struct pci_dev *pdev)
{
	struct mt76_dev *mdev = pci_get_drvdata(pdev);

	mt76_unregister_device(mdev);
	ieee80211_free_hw(mdev->hw);
}

static const struct pci_device_id mt76x0e_device_table[] = {
	{ PCI_DEVICE(0x14c3, 0x7630) },
	{ },
};

MODULE_DEVICE_TABLE(pci, mt76x0e_device_table);
MODULE_LICENSE("Dual BSD/GPL");

static struct pci_driver mt76x0e_driver = {
	.name		= KBUILD_MODNAME,
	.id_table	= mt76x0e_device_table,
	.probe		= mt76x0e_probe,
	.remove		= mt76x0e_remove,
};

module_pci_driver(mt76x0e_driver);