1 // SPDX-License-Identifier: ISC 2 /* 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 14 static const struct pci_device_id mt7615_pci_device_table[] = { 15 { PCI_DEVICE(0x14c3, 0x7615) }, 16 { PCI_DEVICE(0x14c3, 0x7663) }, 17 { PCI_DEVICE(0x14c3, 0x7611) }, 18 { }, 19 }; 20 21 static int mt7615_pci_probe(struct pci_dev *pdev, 22 const struct pci_device_id *id) 23 { 24 const u32 *map; 25 int ret; 26 27 ret = pcim_enable_device(pdev); 28 if (ret) 29 return ret; 30 31 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); 32 if (ret) 33 return ret; 34 35 pci_set_master(pdev); 36 37 ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES); 38 if (ret < 0) 39 return ret; 40 41 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 42 if (ret) 43 goto error; 44 45 mt76_pci_disable_aspm(pdev); 46 47 map = id->device == 0x7663 ? mt7663e_reg_map : mt7615e_reg_map; 48 ret = mt7615_mmio_probe(&pdev->dev, pcim_iomap_table(pdev)[0], 49 pdev->irq, map); 50 if (ret) 51 goto error; 52 53 return 0; 54 error: 55 pci_free_irq_vectors(pdev); 56 57 return ret; 58 } 59 60 static void mt7615_pci_remove(struct pci_dev *pdev) 61 { 62 struct mt76_dev *mdev = pci_get_drvdata(pdev); 63 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 64 65 mt7615_unregister_device(dev); 66 devm_free_irq(&pdev->dev, pdev->irq, dev); 67 pci_free_irq_vectors(pdev); 68 } 69 70 #ifdef CONFIG_PM 71 static int mt7615_pci_suspend(struct pci_dev *pdev, pm_message_t state) 72 { 73 struct mt76_dev *mdev = pci_get_drvdata(pdev); 74 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 75 bool hif_suspend; 76 int i, err; 77 78 hif_suspend = !test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) && 79 mt7615_firmware_offload(dev); 80 if (hif_suspend) { 81 err = mt7615_mcu_set_hif_suspend(dev, true); 82 if (err) 83 return err; 84 } 85 86 napi_disable(&mdev->tx_napi); 87 tasklet_kill(&mdev->tx_tasklet); 88 89 for (i = 0; i < ARRAY_SIZE(mdev->q_rx); i++) 90 napi_disable(&mdev->napi[i]); 91 tasklet_kill(&dev->irq_tasklet); 92 93 mt7615_dma_reset(dev); 94 95 err = mt7615_wait_pdma_busy(dev); 96 if (err) 97 goto restore; 98 99 if (is_mt7663(mdev)) { 100 mt76_set(dev, MT_PDMA_SLP_PROT, MT_PDMA_AXI_SLPPROT_ENABLE); 101 if (!mt76_poll_msec(dev, MT_PDMA_SLP_PROT, 102 MT_PDMA_AXI_SLPPROT_RDY, 103 MT_PDMA_AXI_SLPPROT_RDY, 1000)) { 104 dev_err(mdev->dev, "PDMA sleep protection failed\n"); 105 err = -EIO; 106 goto restore; 107 } 108 } 109 110 pci_enable_wake(pdev, pci_choose_state(pdev, state), true); 111 pci_save_state(pdev); 112 err = pci_set_power_state(pdev, pci_choose_state(pdev, state)); 113 if (err) 114 goto restore; 115 116 err = mt7615_firmware_own(dev); 117 if (err) 118 goto restore; 119 120 return 0; 121 122 restore: 123 for (i = 0; i < ARRAY_SIZE(mdev->q_rx); i++) 124 napi_enable(&mdev->napi[i]); 125 napi_enable(&mdev->tx_napi); 126 if (hif_suspend) 127 mt7615_mcu_set_hif_suspend(dev, false); 128 129 return err; 130 } 131 132 static int mt7615_pci_resume(struct pci_dev *pdev) 133 { 134 struct mt76_dev *mdev = pci_get_drvdata(pdev); 135 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 136 bool pdma_reset; 137 int i, err; 138 139 err = mt7615_driver_own(dev); 140 if (err < 0) 141 return err; 142 143 err = pci_set_power_state(pdev, PCI_D0); 144 if (err) 145 return err; 146 147 pci_restore_state(pdev); 148 149 if (is_mt7663(&dev->mt76)) { 150 mt76_clear(dev, MT_PDMA_SLP_PROT, MT_PDMA_AXI_SLPPROT_ENABLE); 151 mt76_wr(dev, MT_PCIE_IRQ_ENABLE, 1); 152 } 153 154 pdma_reset = !mt76_rr(dev, MT_WPDMA_TX_RING0_CTRL0) && 155 !mt76_rr(dev, MT_WPDMA_TX_RING0_CTRL1); 156 if (pdma_reset) 157 dev_err(mdev->dev, "PDMA engine must be reinitialized\n"); 158 159 for (i = 0; i < ARRAY_SIZE(mdev->q_rx); i++) { 160 napi_enable(&mdev->napi[i]); 161 napi_schedule(&mdev->napi[i]); 162 } 163 napi_enable(&mdev->tx_napi); 164 napi_schedule(&mdev->tx_napi); 165 166 if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) && 167 mt7615_firmware_offload(dev)) 168 err = mt7615_mcu_set_hif_suspend(dev, false); 169 170 return err; 171 } 172 #endif /* CONFIG_PM */ 173 174 struct pci_driver mt7615_pci_driver = { 175 .name = KBUILD_MODNAME, 176 .id_table = mt7615_pci_device_table, 177 .probe = mt7615_pci_probe, 178 .remove = mt7615_pci_remove, 179 #ifdef CONFIG_PM 180 .suspend = mt7615_pci_suspend, 181 .resume = mt7615_pci_resume, 182 #endif /* CONFIG_PM */ 183 }; 184 185 MODULE_DEVICE_TABLE(pci, mt7615_pci_device_table); 186 MODULE_FIRMWARE(MT7615_FIRMWARE_CR4); 187 MODULE_FIRMWARE(MT7615_FIRMWARE_N9); 188 MODULE_FIRMWARE(MT7615_ROM_PATCH); 189 MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9); 190 MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH); 191 MODULE_FIRMWARE(MT7663_FIRMWARE_N9); 192 MODULE_FIRMWARE(MT7663_ROM_PATCH); 193