| // SPDX-License-Identifier: ISC |
| /* Copyright (C) 2019 MediaTek Inc. |
| * |
| * Author: Ryder Lee <ryder.lee@mediatek.com> |
| * Felix Fietkau <nbd@nbd.name> |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/pci.h> |
| |
| #include "mt7615.h" |
| #include "mac.h" |
| |
| static const struct pci_device_id mt7615_pci_device_table[] = { |
| { PCI_DEVICE(0x14c3, 0x7615) }, |
| { }, |
| }; |
| |
| u32 mt7615_reg_map(struct mt7615_dev *dev, u32 addr) |
| { |
| u32 base = addr & MT_MCU_PCIE_REMAP_2_BASE; |
| u32 offset = addr & MT_MCU_PCIE_REMAP_2_OFFSET; |
| |
| mt76_wr(dev, MT_MCU_PCIE_REMAP_2, base); |
| |
| return MT_PCIE_REMAP_BASE_2 + offset; |
| } |
| |
| static void |
| mt7615_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q) |
| { |
| struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); |
| |
| mt7615_irq_enable(dev, MT_INT_RX_DONE(q)); |
| } |
| |
| static irqreturn_t mt7615_irq_handler(int irq, void *dev_instance) |
| { |
| struct mt7615_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->mt76.mmio.irqmask; |
| |
| if (intr & MT_INT_TX_DONE_ALL) { |
| mt7615_irq_disable(dev, MT_INT_TX_DONE_ALL); |
| napi_schedule(&dev->mt76.tx_napi); |
| } |
| |
| if (intr & MT_INT_RX_DONE(0)) { |
| mt7615_irq_disable(dev, MT_INT_RX_DONE(0)); |
| napi_schedule(&dev->mt76.napi[0]); |
| } |
| |
| if (intr & MT_INT_RX_DONE(1)) { |
| mt7615_irq_disable(dev, MT_INT_RX_DONE(1)); |
| napi_schedule(&dev->mt76.napi[1]); |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| static int mt7615_pci_probe(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| static const struct mt76_driver_ops drv_ops = { |
| /* txwi_size = txd size + txp size */ |
| .txwi_size = MT_TXD_SIZE + sizeof(struct mt7615_txp), |
| .txwi_flags = MT_TXWI_NO_FREE, |
| .tx_prepare_skb = mt7615_tx_prepare_skb, |
| .tx_complete_skb = mt7615_tx_complete_skb, |
| .rx_skb = mt7615_queue_rx_skb, |
| .rx_poll_complete = mt7615_rx_poll_complete, |
| .sta_ps = mt7615_sta_ps, |
| .sta_add = mt7615_sta_add, |
| .sta_assoc = mt7615_sta_assoc, |
| .sta_remove = mt7615_sta_remove, |
| .update_survey = mt7615_update_channel, |
| }; |
| struct mt7615_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 = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| if (ret) |
| return ret; |
| |
| mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt7615_ops, |
| &drv_ops); |
| if (!mdev) |
| return -ENOMEM; |
| |
| dev = container_of(mdev, struct mt7615_dev, mt76); |
| mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]); |
| |
| mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | |
| (mt76_rr(dev, MT_HW_REV) & 0xff); |
| dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev); |
| |
| ret = devm_request_irq(mdev->dev, pdev->irq, mt7615_irq_handler, |
| IRQF_SHARED, KBUILD_MODNAME, dev); |
| if (ret) |
| goto error; |
| |
| ret = mt7615_register_device(dev); |
| if (ret) |
| goto error; |
| |
| return 0; |
| error: |
| ieee80211_free_hw(mt76_hw(dev)); |
| return ret; |
| } |
| |
| static void mt7615_pci_remove(struct pci_dev *pdev) |
| { |
| struct mt76_dev *mdev = pci_get_drvdata(pdev); |
| struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); |
| |
| mt7615_unregister_device(dev); |
| } |
| |
| struct pci_driver mt7615_pci_driver = { |
| .name = KBUILD_MODNAME, |
| .id_table = mt7615_pci_device_table, |
| .probe = mt7615_pci_probe, |
| .remove = mt7615_pci_remove, |
| }; |
| |
| module_pci_driver(mt7615_pci_driver); |
| |
| MODULE_DEVICE_TABLE(pci, mt7615_pci_device_table); |
| MODULE_FIRMWARE(MT7615_FIRMWARE_CR4); |
| MODULE_FIRMWARE(MT7615_FIRMWARE_N9); |
| MODULE_FIRMWARE(MT7615_ROM_PATCH); |
| MODULE_LICENSE("Dual BSD/GPL"); |