1 // SPDX-License-Identifier: ISC
3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
6 #include <linux/kernel.h>
7 #include <linux/module.h>
12 static const struct pci_device_id mt76x2e_device_table[] = {
13 { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7662) },
14 { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7612) },
15 { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7602) },
20 mt76x2e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
22 static const struct mt76_driver_ops drv_ops = {
23 .txwi_size = sizeof(struct mt76x02_txwi),
24 .drv_flags = MT_DRV_TX_ALIGNED4_SKBS |
26 .survey_flags = SURVEY_INFO_TIME_TX,
27 .update_survey = mt76x02_update_channel,
28 .tx_prepare_skb = mt76x02_tx_prepare_skb,
29 .tx_complete_skb = mt76x02_tx_complete_skb,
30 .rx_skb = mt76x02_queue_rx_skb,
31 .rx_poll_complete = mt76x02_rx_poll_complete,
32 .sta_ps = mt76x02_sta_ps,
33 .sta_add = mt76x02_sta_add,
34 .sta_remove = mt76x02_sta_remove,
36 struct mt76x02_dev *dev;
37 struct mt76_dev *mdev;
40 ret = pcim_enable_device(pdev);
44 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
50 ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
54 mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt76x2_ops,
59 dev = container_of(mdev, struct mt76x02_dev, mt76);
60 mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]);
61 mt76x2_reset_wlan(dev, false);
63 mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
64 dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
66 mt76_wr(dev, MT_INT_MASK_CSR, 0);
68 ret = devm_request_irq(mdev->dev, pdev->irq, mt76x02_irq_handler,
69 IRQF_SHARED, KBUILD_MODNAME, dev);
73 ret = mt76x2_register_device(dev);
77 /* Fix up ASPM configuration */
79 /* RG_SSUSB_G1_CDR_BIR_LTR = 0x9 */
80 mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9);
82 /* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */
83 mt76_rmw_field(dev, 0x15a0c, 0xfU << 28, 0xf);
85 /* RG_SSUSB_CDR_BR_PE1D = 0x3 */
86 mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3);
88 mt76_pci_disable_aspm(pdev);
93 mt76_free_device(&dev->mt76);
99 mt76x2e_remove(struct pci_dev *pdev)
101 struct mt76_dev *mdev = pci_get_drvdata(pdev);
102 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
104 mt76_unregister_device(mdev);
106 mt76_free_device(mdev);
109 static int __maybe_unused
110 mt76x2e_suspend(struct pci_dev *pdev, pm_message_t state)
112 struct mt76_dev *mdev = pci_get_drvdata(pdev);
115 napi_disable(&mdev->tx_napi);
116 tasklet_kill(&mdev->pre_tbtt_tasklet);
117 mt76_worker_disable(&mdev->tx_worker);
119 mt76_for_each_q_rx(mdev, i)
120 napi_disable(&mdev->napi[i]);
122 pci_enable_wake(pdev, pci_choose_state(pdev, state), true);
123 pci_save_state(pdev);
124 err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
131 mt76_for_each_q_rx(mdev, i)
132 napi_enable(&mdev->napi[i]);
133 napi_enable(&mdev->tx_napi);
138 static int __maybe_unused
139 mt76x2e_resume(struct pci_dev *pdev)
141 struct mt76_dev *mdev = pci_get_drvdata(pdev);
142 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
145 err = pci_set_power_state(pdev, PCI_D0);
149 pci_restore_state(pdev);
151 mt76_worker_enable(&mdev->tx_worker);
154 mt76_for_each_q_rx(mdev, i) {
155 napi_enable(&mdev->napi[i]);
156 napi_schedule(&mdev->napi[i]);
158 napi_enable(&mdev->tx_napi);
159 napi_schedule(&mdev->tx_napi);
162 return mt76x2_resume_device(dev);
165 MODULE_DEVICE_TABLE(pci, mt76x2e_device_table);
166 MODULE_FIRMWARE(MT7662_FIRMWARE);
167 MODULE_FIRMWARE(MT7662_ROM_PATCH);
168 MODULE_LICENSE("Dual BSD/GPL");
170 static struct pci_driver mt76pci_driver = {
171 .name = KBUILD_MODNAME,
172 .id_table = mt76x2e_device_table,
173 .probe = mt76x2e_probe,
174 .remove = mt76x2e_remove,
176 .suspend = mt76x2e_suspend,
177 .resume = mt76x2e_resume,
178 #endif /* CONFIG_PM */
181 module_pci_driver(mt76pci_driver);