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 static const struct mt76_driver_ops drv_ops = { 34 .txwi_size = sizeof(struct mt76x02_txwi), 35 .tx_aligned4_skbs = true, 36 .update_survey = mt76x02_update_channel, 37 .tx_prepare_skb = mt76x02_tx_prepare_skb, 38 .tx_complete_skb = mt76x02_tx_complete_skb, 39 .rx_skb = mt76x02_queue_rx_skb, 40 .rx_poll_complete = mt76x02_rx_poll_complete, 41 .sta_ps = mt76x02_sta_ps, 42 .sta_add = mt76x02_sta_add, 43 .sta_remove = mt76x02_sta_remove, 44 }; 45 struct mt76x02_dev *dev; 46 struct mt76_dev *mdev; 47 int ret; 48 49 ret = pcim_enable_device(pdev); 50 if (ret) 51 return ret; 52 53 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); 54 if (ret) 55 return ret; 56 57 pci_set_master(pdev); 58 59 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 60 if (ret) 61 return ret; 62 63 mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt76x2_ops, 64 &drv_ops); 65 if (!mdev) 66 return -ENOMEM; 67 68 dev = container_of(mdev, struct mt76x02_dev, mt76); 69 mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]); 70 mt76x2_reset_wlan(dev, false); 71 72 mdev->rev = mt76_rr(dev, MT_ASIC_VERSION); 73 dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev); 74 75 ret = devm_request_irq(mdev->dev, pdev->irq, mt76x02_irq_handler, 76 IRQF_SHARED, KBUILD_MODNAME, dev); 77 if (ret) 78 goto error; 79 80 ret = mt76x2_register_device(dev); 81 if (ret) 82 goto error; 83 84 /* Fix up ASPM configuration */ 85 86 /* RG_SSUSB_G1_CDR_BIR_LTR = 0x9 */ 87 mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9); 88 89 /* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */ 90 mt76_rmw_field(dev, 0x15a0c, 0xf << 28, 0xf); 91 92 /* RG_SSUSB_CDR_BR_PE1D = 0x3 */ 93 mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3); 94 95 return 0; 96 97 error: 98 ieee80211_free_hw(mt76_hw(dev)); 99 return ret; 100 } 101 102 static void 103 mt76pci_remove(struct pci_dev *pdev) 104 { 105 struct mt76_dev *mdev = pci_get_drvdata(pdev); 106 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 107 108 mt76_unregister_device(mdev); 109 mt76x2_cleanup(dev); 110 mt76_free_device(mdev); 111 } 112 113 MODULE_DEVICE_TABLE(pci, mt76pci_device_table); 114 MODULE_FIRMWARE(MT7662_FIRMWARE); 115 MODULE_FIRMWARE(MT7662_ROM_PATCH); 116 MODULE_LICENSE("Dual BSD/GPL"); 117 118 static struct pci_driver mt76pci_driver = { 119 .name = KBUILD_MODNAME, 120 .id_table = mt76pci_device_table, 121 .probe = mt76pci_probe, 122 .remove = mt76pci_remove, 123 }; 124 125 module_pci_driver(mt76pci_driver); 126