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1// SPDX-License-Identifier: ISC2/* Copyright (C) 2019 MediaTek Inc.3 *4 * Author: Ryder Lee <ryder.lee@mediatek.com>5 * Felix Fietkau <nbd@nbd.name>6 */7 8#include <linux/kernel.h>9#include <linux/module.h>10#include <linux/pci.h>11 12#include "mt7615.h"13#include "mcu.h"14 15static const struct pci_device_id mt7615_pci_device_table[] = {16 { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7615) },17 { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7663) },18 { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7611) },19 { },20};21 22static int mt7615_pci_probe(struct pci_dev *pdev,23 const struct pci_device_id *id)24{25 const u32 *map;26 int ret;27 28 ret = pcim_enable_device(pdev);29 if (ret)30 return ret;31 32 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));33 if (ret)34 return ret;35 36 pci_set_master(pdev);37 38 ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);39 if (ret < 0)40 return ret;41 42 ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));43 if (ret)44 goto error;45 46 mt76_pci_disable_aspm(pdev);47 48 map = id->device == 0x7663 ? mt7663e_reg_map : mt7615e_reg_map;49 ret = mt7615_mmio_probe(&pdev->dev, pcim_iomap_table(pdev)[0],50 pdev->irq, map);51 if (ret)52 goto error;53 54 return 0;55error:56 pci_free_irq_vectors(pdev);57 58 return ret;59}60 61static void mt7615_pci_remove(struct pci_dev *pdev)62{63 struct mt76_dev *mdev = pci_get_drvdata(pdev);64 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);65 66 mt7615_unregister_device(dev);67 devm_free_irq(&pdev->dev, pdev->irq, dev);68 pci_free_irq_vectors(pdev);69}70 71#ifdef CONFIG_PM72static int mt7615_pci_suspend(struct pci_dev *pdev, pm_message_t state)73{74 struct mt76_dev *mdev = pci_get_drvdata(pdev);75 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);76 bool hif_suspend;77 int i, err;78 79 err = mt76_connac_pm_wake(&dev->mphy, &dev->pm);80 if (err < 0)81 return err;82 83 hif_suspend = !test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&84 mt7615_firmware_offload(dev);85 if (hif_suspend) {86 err = mt76_connac_mcu_set_hif_suspend(mdev, true);87 if (err)88 return err;89 }90 91 napi_disable(&mdev->tx_napi);92 mt76_worker_disable(&mdev->tx_worker);93 94 mt76_for_each_q_rx(mdev, i) {95 napi_disable(&mdev->napi[i]);96 }97 tasklet_kill(&mdev->irq_tasklet);98 99 mt7615_dma_reset(dev);100 101 err = mt7615_wait_pdma_busy(dev);102 if (err)103 goto restore;104 105 if (is_mt7663(mdev)) {106 mt76_set(dev, MT_PDMA_SLP_PROT, MT_PDMA_AXI_SLPPROT_ENABLE);107 if (!mt76_poll_msec(dev, MT_PDMA_SLP_PROT,108 MT_PDMA_AXI_SLPPROT_RDY,109 MT_PDMA_AXI_SLPPROT_RDY, 1000)) {110 dev_err(mdev->dev, "PDMA sleep protection failed\n");111 err = -EIO;112 goto restore;113 }114 }115 116 pci_enable_wake(pdev, pci_choose_state(pdev, state), true);117 pci_save_state(pdev);118 err = pci_set_power_state(pdev, pci_choose_state(pdev, state));119 if (err)120 goto restore;121 122 err = mt7615_mcu_set_fw_ctrl(dev);123 if (err)124 goto restore;125 126 return 0;127 128restore:129 mt76_for_each_q_rx(mdev, i) {130 napi_enable(&mdev->napi[i]);131 }132 napi_enable(&mdev->tx_napi);133 if (hif_suspend)134 mt76_connac_mcu_set_hif_suspend(mdev, false);135 136 return err;137}138 139static int mt7615_pci_resume(struct pci_dev *pdev)140{141 struct mt76_dev *mdev = pci_get_drvdata(pdev);142 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);143 bool pdma_reset;144 int i, err;145 146 err = mt7615_mcu_set_drv_ctrl(dev);147 if (err < 0)148 return err;149 150 err = pci_set_power_state(pdev, PCI_D0);151 if (err)152 return err;153 154 pci_restore_state(pdev);155 156 if (is_mt7663(&dev->mt76)) {157 mt76_clear(dev, MT_PDMA_SLP_PROT, MT_PDMA_AXI_SLPPROT_ENABLE);158 mt76_wr(dev, MT_PCIE_IRQ_ENABLE, 1);159 }160 161 pdma_reset = !mt76_rr(dev, MT_WPDMA_TX_RING0_CTRL0) &&162 !mt76_rr(dev, MT_WPDMA_TX_RING0_CTRL1);163 if (pdma_reset)164 dev_err(mdev->dev, "PDMA engine must be reinitialized\n");165 166 mt76_worker_enable(&mdev->tx_worker);167 local_bh_disable();168 mt76_for_each_q_rx(mdev, i) {169 napi_enable(&mdev->napi[i]);170 napi_schedule(&mdev->napi[i]);171 }172 napi_enable(&mdev->tx_napi);173 napi_schedule(&mdev->tx_napi);174 local_bh_enable();175 176 if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&177 mt7615_firmware_offload(dev))178 err = mt76_connac_mcu_set_hif_suspend(mdev, false);179 180 return err;181}182#endif /* CONFIG_PM */183 184struct pci_driver mt7615_pci_driver = {185 .name = KBUILD_MODNAME,186 .id_table = mt7615_pci_device_table,187 .probe = mt7615_pci_probe,188 .remove = mt7615_pci_remove,189#ifdef CONFIG_PM190 .suspend = mt7615_pci_suspend,191 .resume = mt7615_pci_resume,192#endif /* CONFIG_PM */193};194 195MODULE_DEVICE_TABLE(pci, mt7615_pci_device_table);196MODULE_FIRMWARE(MT7615_FIRMWARE_CR4);197MODULE_FIRMWARE(MT7615_FIRMWARE_N9);198MODULE_FIRMWARE(MT7615_ROM_PATCH);199MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9);200MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH);201MODULE_FIRMWARE(MT7663_FIRMWARE_N9);202MODULE_FIRMWARE(MT7663_ROM_PATCH);203