1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 4 */ 5 6 #include <linux/kernel.h> 7 #include <linux/module.h> 8 #include <linux/pci.h> 9 10 #include "mt76x2.h" 11 12 static const struct pci_device_id mt76pci_device_table[] = { 13 { PCI_DEVICE(0x14c3, 0x7662) }, 14 { PCI_DEVICE(0x14c3, 0x7612) }, 15 { PCI_DEVICE(0x14c3, 0x7602) }, 16 { }, 17 }; 18 19 static int 20 mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) 21 { 22 static const struct mt76_driver_ops drv_ops = { 23 .txwi_size = sizeof(struct mt76x02_txwi), 24 .tx_aligned4_skbs = true, 25 .update_survey = mt76x02_update_channel, 26 .tx_prepare_skb = mt76x02_tx_prepare_skb, 27 .tx_complete_skb = mt76x02_tx_complete_skb, 28 .rx_skb = mt76x02_queue_rx_skb, 29 .rx_poll_complete = mt76x02_rx_poll_complete, 30 .sta_ps = mt76x02_sta_ps, 31 .sta_add = mt76x02_sta_add, 32 .sta_remove = mt76x02_sta_remove, 33 }; 34 struct mt76x02_dev *dev; 35 struct mt76_dev *mdev; 36 int ret; 37 38 ret = pcim_enable_device(pdev); 39 if (ret) 40 return ret; 41 42 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); 43 if (ret) 44 return ret; 45 46 pci_set_master(pdev); 47 48 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 49 if (ret) 50 return ret; 51 52 mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt76x2_ops, 53 &drv_ops); 54 if (!mdev) 55 return -ENOMEM; 56 57 dev = container_of(mdev, struct mt76x02_dev, mt76); 58 mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]); 59 mt76x2_reset_wlan(dev, false); 60 61 mdev->rev = mt76_rr(dev, MT_ASIC_VERSION); 62 dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev); 63 64 ret = devm_request_irq(mdev->dev, pdev->irq, mt76x02_irq_handler, 65 IRQF_SHARED, KBUILD_MODNAME, dev); 66 if (ret) 67 goto error; 68 69 ret = mt76x2_register_device(dev); 70 if (ret) 71 goto error; 72 73 /* Fix up ASPM configuration */ 74 75 /* RG_SSUSB_G1_CDR_BIR_LTR = 0x9 */ 76 mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9); 77 78 /* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */ 79 mt76_rmw_field(dev, 0x15a0c, 0xf << 28, 0xf); 80 81 /* RG_SSUSB_CDR_BR_PE1D = 0x3 */ 82 mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3); 83 84 return 0; 85 86 error: 87 ieee80211_free_hw(mt76_hw(dev)); 88 return ret; 89 } 90 91 static void 92 mt76pci_remove(struct pci_dev *pdev) 93 { 94 struct mt76_dev *mdev = pci_get_drvdata(pdev); 95 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 96 97 mt76_unregister_device(mdev); 98 mt76x2_cleanup(dev); 99 mt76_free_device(mdev); 100 } 101 102 MODULE_DEVICE_TABLE(pci, mt76pci_device_table); 103 MODULE_FIRMWARE(MT7662_FIRMWARE); 104 MODULE_FIRMWARE(MT7662_ROM_PATCH); 105 MODULE_LICENSE("Dual BSD/GPL"); 106 107 static struct pci_driver mt76pci_driver = { 108 .name = KBUILD_MODNAME, 109 .id_table = mt76pci_device_table, 110 .probe = mt76pci_probe, 111 .remove = mt76pci_remove, 112 }; 113 114 module_pci_driver(mt76pci_driver); 115