1 /* 2 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <linux/kernel.h> 18 #include <linux/module.h> 19 #include <linux/pci.h> 20 21 #include "mt76x2.h" 22 23 static const struct pci_device_id mt76pci_device_table[] = { 24 { PCI_DEVICE(0x14c3, 0x7662) }, 25 { PCI_DEVICE(0x14c3, 0x7612) }, 26 { PCI_DEVICE(0x14c3, 0x7602) }, 27 { }, 28 }; 29 30 static int 31 mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) 32 { 33 struct mt76x02_dev *dev; 34 int ret; 35 36 ret = pcim_enable_device(pdev); 37 if (ret) 38 return ret; 39 40 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); 41 if (ret) 42 return ret; 43 44 pci_set_master(pdev); 45 46 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 47 if (ret) 48 return ret; 49 50 dev = mt76x2_alloc_device(&pdev->dev); 51 if (!dev) 52 return -ENOMEM; 53 54 mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]); 55 mt76x2_reset_wlan(dev, false); 56 57 dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION); 58 dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev); 59 60 ret = devm_request_irq(dev->mt76.dev, pdev->irq, mt76x02_irq_handler, 61 IRQF_SHARED, KBUILD_MODNAME, dev); 62 if (ret) 63 goto error; 64 65 ret = mt76x2_register_device(dev); 66 if (ret) 67 goto error; 68 69 /* Fix up ASPM configuration */ 70 71 /* RG_SSUSB_G1_CDR_BIR_LTR = 0x9 */ 72 mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9); 73 74 /* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */ 75 mt76_rmw_field(dev, 0x15a0c, 0xf << 28, 0xf); 76 77 /* RG_SSUSB_CDR_BR_PE1D = 0x3 */ 78 mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3); 79 80 return 0; 81 82 error: 83 ieee80211_free_hw(mt76_hw(dev)); 84 return ret; 85 } 86 87 static void 88 mt76pci_remove(struct pci_dev *pdev) 89 { 90 struct mt76_dev *mdev = pci_get_drvdata(pdev); 91 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 92 93 mt76_unregister_device(mdev); 94 mt76x2_cleanup(dev); 95 ieee80211_free_hw(mdev->hw); 96 } 97 98 MODULE_DEVICE_TABLE(pci, mt76pci_device_table); 99 MODULE_FIRMWARE(MT7662_FIRMWARE); 100 MODULE_FIRMWARE(MT7662_ROM_PATCH); 101 MODULE_LICENSE("Dual BSD/GPL"); 102 103 static struct pci_driver mt76pci_driver = { 104 .name = KBUILD_MODNAME, 105 .id_table = mt76pci_device_table, 106 .probe = mt76pci_probe, 107 .remove = mt76pci_remove, 108 }; 109 110 module_pci_driver(mt76pci_driver); 111