1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2019 MediaTek Inc.
4 * Author: Ryder Lee <ryder.lee@mediatek.com>
5 * Felix Fietkau <nbd@nbd.name>
8 #include <linux/kernel.h>
9 #include <linux/module.h>
10 #include <linux/pci.h>
15 static const struct pci_device_id mt7615_pci_device_table[] = {
16 { PCI_DEVICE(0x14c3, 0x7615) },
20 u32 mt7615_reg_map(struct mt7615_dev *dev, u32 addr)
22 u32 base = addr & MT_MCU_PCIE_REMAP_2_BASE;
23 u32 offset = addr & MT_MCU_PCIE_REMAP_2_OFFSET;
25 mt76_wr(dev, MT_MCU_PCIE_REMAP_2, base);
27 return MT_PCIE_REMAP_BASE_2 + offset;
31 mt7615_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q)
33 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
35 mt7615_irq_enable(dev, MT_INT_RX_DONE(q));
38 static irqreturn_t mt7615_irq_handler(int irq, void *dev_instance)
40 struct mt7615_dev *dev = dev_instance;
43 intr = mt76_rr(dev, MT_INT_SOURCE_CSR);
44 mt76_wr(dev, MT_INT_SOURCE_CSR, intr);
46 if (!test_bit(MT76_STATE_INITIALIZED, &dev->mt76.state))
49 intr &= dev->mt76.mmio.irqmask;
51 if (intr & MT_INT_TX_DONE_ALL) {
52 mt7615_irq_disable(dev, MT_INT_TX_DONE_ALL);
53 napi_schedule(&dev->mt76.tx_napi);
56 if (intr & MT_INT_RX_DONE(0)) {
57 mt7615_irq_disable(dev, MT_INT_RX_DONE(0));
58 napi_schedule(&dev->mt76.napi[0]);
61 if (intr & MT_INT_RX_DONE(1)) {
62 mt7615_irq_disable(dev, MT_INT_RX_DONE(1));
63 napi_schedule(&dev->mt76.napi[1]);
69 static int mt7615_pci_probe(struct pci_dev *pdev,
70 const struct pci_device_id *id)
72 static const struct mt76_driver_ops drv_ops = {
73 /* txwi_size = txd size + txp size */
74 .txwi_size = MT_TXD_SIZE + sizeof(struct mt7615_txp),
75 .txwi_flags = MT_TXWI_NO_FREE,
76 .tx_prepare_skb = mt7615_tx_prepare_skb,
77 .tx_complete_skb = mt7615_tx_complete_skb,
78 .rx_skb = mt7615_queue_rx_skb,
79 .rx_poll_complete = mt7615_rx_poll_complete,
80 .sta_ps = mt7615_sta_ps,
81 .sta_add = mt7615_sta_add,
82 .sta_assoc = mt7615_sta_assoc,
83 .sta_remove = mt7615_sta_remove,
85 struct mt7615_dev *dev;
86 struct mt76_dev *mdev;
89 ret = pcim_enable_device(pdev);
93 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
99 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
103 mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt7615_ops,
108 dev = container_of(mdev, struct mt7615_dev, mt76);
109 mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);
111 mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
112 (mt76_rr(dev, MT_HW_REV) & 0xff);
113 dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
115 ret = devm_request_irq(mdev->dev, pdev->irq, mt7615_irq_handler,
116 IRQF_SHARED, KBUILD_MODNAME, dev);
120 ret = mt7615_register_device(dev);
126 ieee80211_free_hw(mt76_hw(dev));
130 static void mt7615_pci_remove(struct pci_dev *pdev)
132 struct mt76_dev *mdev = pci_get_drvdata(pdev);
133 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
135 mt7615_unregister_device(dev);
138 struct pci_driver mt7615_pci_driver = {
139 .name = KBUILD_MODNAME,
140 .id_table = mt7615_pci_device_table,
141 .probe = mt7615_pci_probe,
142 .remove = mt7615_pci_remove,
145 module_pci_driver(mt7615_pci_driver);
147 MODULE_DEVICE_TABLE(pci, mt7615_pci_device_table);
148 MODULE_FIRMWARE(MT7615_FIRMWARE_CR4);
149 MODULE_FIRMWARE(MT7615_FIRMWARE_N9);
150 MODULE_FIRMWARE(MT7615_ROM_PATCH);
151 MODULE_LICENSE("Dual BSD/GPL");