// SPDX-License-Identifier: ISC /* Copyright (C) 2023 MediaTek Inc. */ #include #include #include #include "mt7925.h" #include "mac.h" #include "mcu.h" #include "../dma.h" static const struct pci_device_id mt7925_pci_device_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7925), .driver_data = (kernel_ulong_t)MT7925_FIRMWARE_WM }, { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0717), .driver_data = (kernel_ulong_t)MT7925_FIRMWARE_WM }, { }, }; static bool mt7925_disable_aspm; module_param_named(disable_aspm, mt7925_disable_aspm, bool, 0644); MODULE_PARM_DESC(disable_aspm, "disable PCI ASPM support"); static int mt7925e_init_reset(struct mt792x_dev *dev) { return mt792x_wpdma_reset(dev, true); } static void mt7925e_unregister_device(struct mt792x_dev *dev) { int i; struct mt76_connac_pm *pm = &dev->pm; cancel_work_sync(&dev->init_work); mt76_unregister_device(&dev->mt76); mt76_for_each_q_rx(&dev->mt76, i) napi_disable(&dev->mt76.napi[i]); cancel_delayed_work_sync(&pm->ps_work); cancel_work_sync(&pm->wake_work); cancel_work_sync(&dev->reset_work); mt7925_tx_token_put(dev); __mt792x_mcu_drv_pmctrl(dev); mt792x_dma_cleanup(dev); mt792x_wfsys_reset(dev); skb_queue_purge(&dev->mt76.mcu.res_q); tasklet_disable(&dev->mt76.irq_tasklet); } static void mt7925_reg_remap_restore(struct mt792x_dev *dev) { /* remap to ori status */ if (unlikely(dev->backup_l1)) { dev->bus_ops->wr(&dev->mt76, MT_HIF_REMAP_L1, dev->backup_l1); dev->backup_l1 = 0; } if (dev->backup_l2) { dev->bus_ops->wr(&dev->mt76, MT_HIF_REMAP_L2, dev->backup_l2); dev->backup_l2 = 0; } } static u32 mt7925_reg_map_l1(struct mt792x_dev *dev, u32 addr) { u32 offset = FIELD_GET(MT_HIF_REMAP_L1_OFFSET, addr); u32 base = FIELD_GET(MT_HIF_REMAP_L1_BASE, addr); dev->backup_l1 = dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1); dev->bus_ops->rmw(&dev->mt76, MT_HIF_REMAP_L1, MT_HIF_REMAP_L1_MASK, FIELD_PREP(MT_HIF_REMAP_L1_MASK, base)); /* use read to push write */ dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1); return MT_HIF_REMAP_BASE_L1 + offset; } static u32 mt7925_reg_map_l2(struct mt792x_dev *dev, u32 addr) { u32 base = FIELD_GET(MT_HIF_REMAP_L1_BASE, MT_HIF_REMAP_BASE_L2); dev->backup_l2 = dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1); dev->bus_ops->rmw(&dev->mt76, MT_HIF_REMAP_L1, MT_HIF_REMAP_L1_MASK, FIELD_PREP(MT_HIF_REMAP_L1_MASK, base)); dev->bus_ops->wr(&dev->mt76, MT_HIF_REMAP_L2, addr); /* use read to push write */ dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1); return MT_HIF_REMAP_BASE_L1; } static u32 __mt7925_reg_addr(struct mt792x_dev *dev, u32 addr) { static const struct mt76_connac_reg_map fixed_map[] = { { 0x830c0000, 0x000000, 0x0001000 }, /* WF_MCU_BUS_CR_REMAP */ { 0x54000000, 0x002000, 0x0001000 }, /* WFDMA PCIE0 MCU DMA0 */ { 0x55000000, 0x003000, 0x0001000 }, /* WFDMA PCIE0 MCU DMA1 */ { 0x56000000, 0x004000, 0x0001000 }, /* WFDMA reserved */ { 0x57000000, 0x005000, 0x0001000 }, /* WFDMA MCU wrap CR */ { 0x58000000, 0x006000, 0x0001000 }, /* WFDMA PCIE1 MCU DMA0 (MEM_DMA) */ { 0x59000000, 0x007000, 0x0001000 }, /* WFDMA PCIE1 MCU DMA1 */ { 0x820c0000, 0x008000, 0x0004000 }, /* WF_UMAC_TOP (PLE) */ { 0x820c8000, 0x00c000, 0x0002000 }, /* WF_UMAC_TOP (PSE) */ { 0x820cc000, 0x00e000, 0x0002000 }, /* WF_UMAC_TOP (PP) */ { 0x74030000, 0x010000, 0x0001000 }, /* PCIe MAC */ { 0x820e0000, 0x020000, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_CFG) */ { 0x820e1000, 0x020400, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_TRB) */ { 0x820e2000, 0x020800, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_AGG) */ { 0x820e3000, 0x020c00, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_ARB) */ { 0x820e4000, 0x021000, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_TMAC) */ { 0x820e5000, 0x021400, 0x0000800 }, /* WF_LMAC_TOP BN0 (WF_RMAC) */ { 0x820ce000, 0x021c00, 0x0000200 }, /* WF_LMAC_TOP (WF_SEC) */ { 0x820e7000, 0x021e00, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_DMA) */ { 0x820cf000, 0x022000, 0x0001000 }, /* WF_LMAC_TOP (WF_PF) */ { 0x820e9000, 0x023400, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_WTBLOFF) */ { 0x820ea000, 0x024000, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_ETBF) */ { 0x820eb000, 0x024200, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_LPON) */ { 0x820ec000, 0x024600, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_INT) */ { 0x820ed000, 0x024800, 0x0000800 }, /* WF_LMAC_TOP BN0 (WF_MIB) */ { 0x820ca000, 0x026000, 0x0002000 }, /* WF_LMAC_TOP BN0 (WF_MUCOP) */ { 0x820d0000, 0x030000, 0x0010000 }, /* WF_LMAC_TOP (WF_WTBLON) */ { 0x40000000, 0x070000, 0x0010000 }, /* WF_UMAC_SYSRAM */ { 0x00400000, 0x080000, 0x0010000 }, /* WF_MCU_SYSRAM */ { 0x00410000, 0x090000, 0x0010000 }, /* WF_MCU_SYSRAM (configure register) */ { 0x820f0000, 0x0a0000, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_CFG) */ { 0x820f1000, 0x0a0600, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_TRB) */ { 0x820f2000, 0x0a0800, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_AGG) */ { 0x820f3000, 0x0a0c00, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_ARB) */ { 0x820f4000, 0x0a1000, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_TMAC) */ { 0x820f5000, 0x0a1400, 0x0000800 }, /* WF_LMAC_TOP BN1 (WF_RMAC) */ { 0x820f7000, 0x0a1e00, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_DMA) */ { 0x820f9000, 0x0a3400, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_WTBLOFF) */ { 0x820fa000, 0x0a4000, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_ETBF) */ { 0x820fb000, 0x0a4200, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_LPON) */ { 0x820fc000, 0x0a4600, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_INT) */ { 0x820fd000, 0x0a4800, 0x0000800 }, /* WF_LMAC_TOP BN1 (WF_MIB) */ { 0x820c4000, 0x0a8000, 0x0004000 }, /* WF_LMAC_TOP BN1 (WF_MUCOP) */ { 0x820b0000, 0x0ae000, 0x0001000 }, /* [APB2] WFSYS_ON */ { 0x80020000, 0x0b0000, 0x0010000 }, /* WF_TOP_MISC_OFF */ { 0x81020000, 0x0c0000, 0x0010000 }, /* WF_TOP_MISC_ON */ { 0x7c020000, 0x0d0000, 0x0010000 }, /* CONN_INFRA, wfdma */ { 0x7c060000, 0x0e0000, 0x0010000 }, /* CONN_INFRA, conn_host_csr_top */ { 0x7c000000, 0x0f0000, 0x0010000 }, /* CONN_INFRA */ { 0x70020000, 0x1f0000, 0x0010000 }, /* Reserved for CBTOP, can't switch */ { 0x7c500000, 0x060000, 0x2000000 }, /* remap */ { 0x0, 0x0, 0x0 } /* End */ }; int i; if (addr < 0x200000) return addr; mt7925_reg_remap_restore(dev); for (i = 0; i < ARRAY_SIZE(fixed_map); i++) { u32 ofs; if (addr < fixed_map[i].phys) continue; ofs = addr - fixed_map[i].phys; if (ofs > fixed_map[i].size) continue; return fixed_map[i].maps + ofs; } if ((addr >= 0x18000000 && addr < 0x18c00000) || (addr >= 0x70000000 && addr < 0x78000000) || (addr >= 0x7c000000 && addr < 0x7c400000)) return mt7925_reg_map_l1(dev, addr); return mt7925_reg_map_l2(dev, addr); } static u32 mt7925_rr(struct mt76_dev *mdev, u32 offset) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); u32 addr = __mt7925_reg_addr(dev, offset); return dev->bus_ops->rr(mdev, addr); } static void mt7925_wr(struct mt76_dev *mdev, u32 offset, u32 val) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); u32 addr = __mt7925_reg_addr(dev, offset); dev->bus_ops->wr(mdev, addr, val); } static u32 mt7925_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); u32 addr = __mt7925_reg_addr(dev, offset); return dev->bus_ops->rmw(mdev, addr, mask, val); } static int mt7925_dma_init(struct mt792x_dev *dev) { int ret; mt76_dma_attach(&dev->mt76); ret = mt792x_dma_disable(dev, true); if (ret) return ret; /* init tx queue */ ret = mt76_connac_init_tx_queues(dev->phy.mt76, MT7925_TXQ_BAND0, MT7925_TX_RING_SIZE, MT_TX_RING_BASE, NULL, 0); if (ret) return ret; mt76_wr(dev, MT_WFDMA0_TX_RING0_EXT_CTRL, 0x4); /* command to WM */ ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, MT7925_TXQ_MCU_WM, MT7925_TX_MCU_RING_SIZE, MT_TX_RING_BASE); if (ret) return ret; /* firmware download */ ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_FWDL, MT7925_TXQ_FWDL, MT7925_TX_FWDL_RING_SIZE, MT_TX_RING_BASE); if (ret) return ret; /* rx event */ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU], MT7925_RXQ_MCU_WM, MT7925_RX_MCU_RING_SIZE, MT_RX_BUF_SIZE, MT_RX_EVENT_RING_BASE); if (ret) return ret; /* rx data */ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN], MT7925_RXQ_BAND0, MT7925_RX_RING_SIZE, MT_RX_BUF_SIZE, MT_RX_DATA_RING_BASE); if (ret) return ret; ret = mt76_init_queues(dev, mt792x_poll_rx); if (ret < 0) return ret; netif_napi_add_tx(&dev->mt76.tx_napi_dev, &dev->mt76.tx_napi, mt792x_poll_tx); napi_enable(&dev->mt76.tx_napi); return mt792x_dma_enable(dev); } static int mt7925_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { static const struct mt76_driver_ops drv_ops = { /* txwi_size = txd size + txp size */ .txwi_size = MT_TXD_SIZE + sizeof(struct mt76_connac_hw_txp), .drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ | MT_DRV_AMSDU_OFFLOAD, .survey_flags = SURVEY_INFO_TIME_TX | SURVEY_INFO_TIME_RX | SURVEY_INFO_TIME_BSS_RX, .token_size = MT7925_TOKEN_SIZE, .tx_prepare_skb = mt7925e_tx_prepare_skb, .tx_complete_skb = mt76_connac_tx_complete_skb, .rx_check = mt7925_rx_check, .rx_skb = mt7925_queue_rx_skb, .rx_poll_complete = mt792x_rx_poll_complete, .sta_add = mt7925_mac_sta_add, .sta_assoc = mt7925_mac_sta_assoc, .sta_remove = mt7925_mac_sta_remove, .update_survey = mt792x_update_channel, }; static const struct mt792x_hif_ops mt7925_pcie_ops = { .init_reset = mt7925e_init_reset, .reset = mt7925e_mac_reset, .mcu_init = mt7925e_mcu_init, .drv_own = mt792xe_mcu_drv_pmctrl, .fw_own = mt792xe_mcu_fw_pmctrl, }; static const struct mt792x_irq_map irq_map = { .host_irq_enable = MT_WFDMA0_HOST_INT_ENA, .tx = { .all_complete_mask = MT_INT_TX_DONE_ALL, .mcu_complete_mask = MT_INT_TX_DONE_MCU, }, .rx = { .data_complete_mask = HOST_RX_DONE_INT_ENA2, .wm_complete_mask = HOST_RX_DONE_INT_ENA0, }, }; struct ieee80211_ops *ops; struct mt76_bus_ops *bus_ops; struct mt792x_dev *dev; struct mt76_dev *mdev; u8 features; int ret; u16 cmd; ret = pcim_enable_device(pdev); if (ret) return ret; ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); if (ret) return ret; pci_read_config_word(pdev, PCI_COMMAND, &cmd); if (!(cmd & PCI_COMMAND_MEMORY)) { cmd |= PCI_COMMAND_MEMORY; pci_write_config_word(pdev, PCI_COMMAND, cmd); } pci_set_master(pdev); ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES); if (ret < 0) return ret; ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); if (ret) goto err_free_pci_vec; if (mt7925_disable_aspm) mt76_pci_disable_aspm(pdev); ops = mt792x_get_mac80211_ops(&pdev->dev, &mt7925_ops, (void *)id->driver_data, &features); if (!ops) { ret = -ENOMEM; goto err_free_pci_vec; } mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), ops, &drv_ops); if (!mdev) { ret = -ENOMEM; goto err_free_pci_vec; } pci_set_drvdata(pdev, mdev); dev = container_of(mdev, struct mt792x_dev, mt76); dev->fw_features = features; dev->hif_ops = &mt7925_pcie_ops; dev->irq_map = &irq_map; mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]); tasklet_init(&mdev->irq_tasklet, mt792x_irq_tasklet, (unsigned long)dev); dev->phy.dev = dev; dev->phy.mt76 = &dev->mt76.phy; dev->mt76.phy.priv = &dev->phy; dev->bus_ops = dev->mt76.bus; bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops), GFP_KERNEL); if (!bus_ops) { ret = -ENOMEM; goto err_free_dev; } bus_ops->rr = mt7925_rr; bus_ops->wr = mt7925_wr; bus_ops->rmw = mt7925_rmw; dev->mt76.bus = bus_ops; ret = __mt792x_mcu_fw_pmctrl(dev); if (ret) goto err_free_dev; ret = __mt792xe_mcu_drv_pmctrl(dev); if (ret) goto err_free_dev; mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | (mt76_rr(dev, MT_HW_REV) & 0xff); dev_info(mdev->dev, "ASIC revision: %04x\n", mdev->rev); mt76_rmw_field(dev, MT_HW_EMI_CTL, MT_HW_EMI_CTL_SLPPROT_EN, 1); ret = mt792x_wfsys_reset(dev); if (ret) goto err_free_dev; mt76_wr(dev, irq_map.host_irq_enable, 0); mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); ret = devm_request_irq(mdev->dev, pdev->irq, mt792x_irq_handler, IRQF_SHARED, KBUILD_MODNAME, dev); if (ret) goto err_free_dev; ret = mt7925_dma_init(dev); if (ret) goto err_free_irq; ret = mt7925_register_device(dev); if (ret) goto err_free_irq; return 0; err_free_irq: devm_free_irq(&pdev->dev, pdev->irq, dev); err_free_dev: mt76_free_device(&dev->mt76); err_free_pci_vec: pci_free_irq_vectors(pdev); return ret; } static void mt7925_pci_remove(struct pci_dev *pdev) { struct mt76_dev *mdev = pci_get_drvdata(pdev); struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); mt7925e_unregister_device(dev); set_bit(MT76_REMOVED, &mdev->phy.state); devm_free_irq(&pdev->dev, pdev->irq, dev); mt76_free_device(&dev->mt76); pci_free_irq_vectors(pdev); } static int mt7925_pci_suspend(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); struct mt76_dev *mdev = pci_get_drvdata(pdev); struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); struct mt76_connac_pm *pm = &dev->pm; int i, err; pm->suspended = true; flush_work(&dev->reset_work); cancel_delayed_work_sync(&pm->ps_work); cancel_work_sync(&pm->wake_work); err = mt792x_mcu_drv_pmctrl(dev); if (err < 0) goto restore_suspend; /* always enable deep sleep during suspend to reduce * power consumption */ mt7925_mcu_set_deep_sleep(dev, true); err = mt76_connac_mcu_set_hif_suspend(mdev, true); if (err) goto restore_suspend; napi_disable(&mdev->tx_napi); mt76_worker_disable(&mdev->tx_worker); mt76_for_each_q_rx(mdev, i) { napi_disable(&mdev->napi[i]); } /* wait until dma is idle */ mt76_poll(dev, MT_WFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_TX_DMA_BUSY | MT_WFDMA0_GLO_CFG_RX_DMA_BUSY, 0, 1000); /* put dma disabled */ mt76_clear(dev, MT_WFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); /* disable interrupt */ mt76_wr(dev, dev->irq_map->host_irq_enable, 0); mt76_wr(dev, MT_WFDMA0_HOST_INT_DIS, dev->irq_map->tx.all_complete_mask | MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD); mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0); synchronize_irq(pdev->irq); tasklet_kill(&mdev->irq_tasklet); err = mt792x_mcu_fw_pmctrl(dev); if (err) goto restore_napi; return 0; restore_napi: mt76_for_each_q_rx(mdev, i) { napi_enable(&mdev->napi[i]); } napi_enable(&mdev->tx_napi); if (!pm->ds_enable) mt7925_mcu_set_deep_sleep(dev, false); mt76_connac_mcu_set_hif_suspend(mdev, false); restore_suspend: pm->suspended = false; if (err < 0) mt792x_reset(&dev->mt76); return err; } static int mt7925_pci_resume(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); struct mt76_dev *mdev = pci_get_drvdata(pdev); struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); struct mt76_connac_pm *pm = &dev->pm; int i, err; err = mt792x_mcu_drv_pmctrl(dev); if (err < 0) goto failed; mt792x_wpdma_reinit_cond(dev); /* enable interrupt */ mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); mt76_connac_irq_enable(&dev->mt76, dev->irq_map->tx.all_complete_mask | MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD); mt76_set(dev, MT_MCU2HOST_SW_INT_ENA, MT_MCU_CMD_WAKE_RX_PCIE); /* put dma enabled */ mt76_set(dev, MT_WFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); mt76_worker_enable(&mdev->tx_worker); local_bh_disable(); mt76_for_each_q_rx(mdev, i) { napi_enable(&mdev->napi[i]); napi_schedule(&mdev->napi[i]); } napi_enable(&mdev->tx_napi); napi_schedule(&mdev->tx_napi); local_bh_enable(); err = mt76_connac_mcu_set_hif_suspend(mdev, false); /* restore previous ds setting */ if (!pm->ds_enable) mt7925_mcu_set_deep_sleep(dev, false); failed: pm->suspended = false; if (err < 0) mt792x_reset(&dev->mt76); return err; } static void mt7925_pci_shutdown(struct pci_dev *pdev) { mt7925_pci_remove(pdev); } static DEFINE_SIMPLE_DEV_PM_OPS(mt7925_pm_ops, mt7925_pci_suspend, mt7925_pci_resume); static struct pci_driver mt7925_pci_driver = { .name = KBUILD_MODNAME, .id_table = mt7925_pci_device_table, .probe = mt7925_pci_probe, .remove = mt7925_pci_remove, .shutdown = mt7925_pci_shutdown, .driver.pm = pm_sleep_ptr(&mt7925_pm_ops), }; module_pci_driver(mt7925_pci_driver); MODULE_DEVICE_TABLE(pci, mt7925_pci_device_table); MODULE_FIRMWARE(MT7925_FIRMWARE_WM); MODULE_FIRMWARE(MT7925_ROM_PATCH); MODULE_AUTHOR("Deren Wu "); MODULE_AUTHOR("Lorenzo Bianconi "); MODULE_DESCRIPTION("MediaTek MT7925E (PCIe) wireless driver"); MODULE_LICENSE("Dual BSD/GPL");