pci.c

// SPDX-License-Identifier: ISC

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>

#include "mt7603.h"

static const struct pci_device_id mt76pci_device_table[] = {
	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7603) },
	{ },
};

static int
mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
	struct mt7603_dev *dev;
	struct mt76_dev *mdev;
	int ret;

	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 = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
	if (ret)
		return ret;

	mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt7603_ops,
				 &mt7603_drv_ops);
	if (!mdev)
		return -ENOMEM;

	dev = container_of(mdev, struct mt7603_dev, mt76);
	mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]);

	mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
		    (mt76_rr(dev, MT_HW_REV) & 0xff);
	dev_info(mdev->dev, "ASIC revision: %04x\n", mdev->rev);

	mt76_wr(dev, MT_INT_MASK_CSR, 0);

	ret = devm_request_irq(mdev->dev, pdev->irq, mt7603_irq_handler,
			       IRQF_SHARED, KBUILD_MODNAME, dev);
	if (ret)
		goto error;

	ret = mt7603_register_device(dev);
	if (ret)
		goto error;

	return 0;
error:
	mt76_free_device(&dev->mt76);

	return ret;
}

static void
mt76pci_remove(struct pci_dev *pdev)
{
	struct mt76_dev *mdev = pci_get_drvdata(pdev);
	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);

	mt7603_unregister_device(dev);
}

MODULE_DEVICE_TABLE(pci, mt76pci_device_table);
MODULE_FIRMWARE(MT7603_FIRMWARE_E1);
MODULE_FIRMWARE(MT7603_FIRMWARE_E2);

struct pci_driver mt7603_pci_driver = {
	.name		= KBUILD_MODNAME,
	.id_table	= mt76pci_device_table,
	.probe		= mt76pci_probe,
	.remove		= mt76pci_remove,
};