1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2023 MediaTek Inc. */ 3 4 #include <linux/kernel.h> 5 #include <linux/module.h> 6 #include <linux/pci.h> 7 8 #include "mt7925.h" 9 #include "mac.h" 10 #include "mcu.h" 11 #include "../dma.h" 12 13 static const struct pci_device_id mt7925_pci_device_table[] = { 14 { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7925), 15 .driver_data = (kernel_ulong_t)MT7925_FIRMWARE_WM }, 16 { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0717), 17 .driver_data = (kernel_ulong_t)MT7925_FIRMWARE_WM }, 18 { }, 19 }; 20 21 static bool mt7925_disable_aspm; 22 module_param_named(disable_aspm, mt7925_disable_aspm, bool, 0644); 23 MODULE_PARM_DESC(disable_aspm, "disable PCI ASPM support"); 24 25 static int mt7925e_init_reset(struct mt792x_dev *dev) 26 { 27 return mt792x_wpdma_reset(dev, true); 28 } 29 30 static void mt7925e_unregister_device(struct mt792x_dev *dev) 31 { 32 int i; 33 struct mt76_connac_pm *pm = &dev->pm; 34 35 cancel_work_sync(&dev->init_work); 36 mt76_unregister_device(&dev->mt76); 37 mt76_for_each_q_rx(&dev->mt76, i) 38 napi_disable(&dev->mt76.napi[i]); 39 cancel_delayed_work_sync(&pm->ps_work); 40 cancel_work_sync(&pm->wake_work); 41 cancel_work_sync(&dev->reset_work); 42 43 mt7925_tx_token_put(dev); 44 __mt792x_mcu_drv_pmctrl(dev); 45 mt792x_dma_cleanup(dev); 46 mt792x_wfsys_reset(dev); 47 skb_queue_purge(&dev->mt76.mcu.res_q); 48 49 tasklet_disable(&dev->mt76.irq_tasklet); 50 } 51 52 static void mt7925_reg_remap_restore(struct mt792x_dev *dev) 53 { 54 /* remap to ori status */ 55 if (unlikely(dev->backup_l1)) { 56 dev->bus_ops->wr(&dev->mt76, MT_HIF_REMAP_L1, dev->backup_l1); 57 dev->backup_l1 = 0; 58 } 59 60 if (dev->backup_l2) { 61 dev->bus_ops->wr(&dev->mt76, MT_HIF_REMAP_L2, dev->backup_l2); 62 dev->backup_l2 = 0; 63 } 64 } 65 66 static u32 mt7925_reg_map_l1(struct mt792x_dev *dev, u32 addr) 67 { 68 u32 offset = FIELD_GET(MT_HIF_REMAP_L1_OFFSET, addr); 69 u32 base = FIELD_GET(MT_HIF_REMAP_L1_BASE, addr); 70 71 dev->backup_l1 = dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1); 72 73 dev->bus_ops->rmw(&dev->mt76, MT_HIF_REMAP_L1, 74 MT_HIF_REMAP_L1_MASK, 75 FIELD_PREP(MT_HIF_REMAP_L1_MASK, base)); 76 77 /* use read to push write */ 78 dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1); 79 80 return MT_HIF_REMAP_BASE_L1 + offset; 81 } 82 83 static u32 mt7925_reg_map_l2(struct mt792x_dev *dev, u32 addr) 84 { 85 u32 base = FIELD_GET(MT_HIF_REMAP_L1_BASE, MT_HIF_REMAP_BASE_L2); 86 87 dev->backup_l2 = dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1); 88 89 dev->bus_ops->rmw(&dev->mt76, MT_HIF_REMAP_L1, 90 MT_HIF_REMAP_L1_MASK, 91 FIELD_PREP(MT_HIF_REMAP_L1_MASK, base)); 92 93 dev->bus_ops->wr(&dev->mt76, MT_HIF_REMAP_L2, addr); 94 /* use read to push write */ 95 dev->bus_ops->rr(&dev->mt76, MT_HIF_REMAP_L1); 96 97 return MT_HIF_REMAP_BASE_L1; 98 } 99 100 static u32 __mt7925_reg_addr(struct mt792x_dev *dev, u32 addr) 101 { 102 static const struct mt76_connac_reg_map fixed_map[] = { 103 { 0x830c0000, 0x000000, 0x0001000 }, /* WF_MCU_BUS_CR_REMAP */ 104 { 0x54000000, 0x002000, 0x0001000 }, /* WFDMA PCIE0 MCU DMA0 */ 105 { 0x55000000, 0x003000, 0x0001000 }, /* WFDMA PCIE0 MCU DMA1 */ 106 { 0x56000000, 0x004000, 0x0001000 }, /* WFDMA reserved */ 107 { 0x57000000, 0x005000, 0x0001000 }, /* WFDMA MCU wrap CR */ 108 { 0x58000000, 0x006000, 0x0001000 }, /* WFDMA PCIE1 MCU DMA0 (MEM_DMA) */ 109 { 0x59000000, 0x007000, 0x0001000 }, /* WFDMA PCIE1 MCU DMA1 */ 110 { 0x820c0000, 0x008000, 0x0004000 }, /* WF_UMAC_TOP (PLE) */ 111 { 0x820c8000, 0x00c000, 0x0002000 }, /* WF_UMAC_TOP (PSE) */ 112 { 0x820cc000, 0x00e000, 0x0002000 }, /* WF_UMAC_TOP (PP) */ 113 { 0x74030000, 0x010000, 0x0001000 }, /* PCIe MAC */ 114 { 0x820e0000, 0x020000, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_CFG) */ 115 { 0x820e1000, 0x020400, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_TRB) */ 116 { 0x820e2000, 0x020800, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_AGG) */ 117 { 0x820e3000, 0x020c00, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_ARB) */ 118 { 0x820e4000, 0x021000, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_TMAC) */ 119 { 0x820e5000, 0x021400, 0x0000800 }, /* WF_LMAC_TOP BN0 (WF_RMAC) */ 120 { 0x820ce000, 0x021c00, 0x0000200 }, /* WF_LMAC_TOP (WF_SEC) */ 121 { 0x820e7000, 0x021e00, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_DMA) */ 122 { 0x820cf000, 0x022000, 0x0001000 }, /* WF_LMAC_TOP (WF_PF) */ 123 { 0x820e9000, 0x023400, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_WTBLOFF) */ 124 { 0x820ea000, 0x024000, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_ETBF) */ 125 { 0x820eb000, 0x024200, 0x0000400 }, /* WF_LMAC_TOP BN0 (WF_LPON) */ 126 { 0x820ec000, 0x024600, 0x0000200 }, /* WF_LMAC_TOP BN0 (WF_INT) */ 127 { 0x820ed000, 0x024800, 0x0000800 }, /* WF_LMAC_TOP BN0 (WF_MIB) */ 128 { 0x820ca000, 0x026000, 0x0002000 }, /* WF_LMAC_TOP BN0 (WF_MUCOP) */ 129 { 0x820d0000, 0x030000, 0x0010000 }, /* WF_LMAC_TOP (WF_WTBLON) */ 130 { 0x40000000, 0x070000, 0x0010000 }, /* WF_UMAC_SYSRAM */ 131 { 0x00400000, 0x080000, 0x0010000 }, /* WF_MCU_SYSRAM */ 132 { 0x00410000, 0x090000, 0x0010000 }, /* WF_MCU_SYSRAM (configure register) */ 133 { 0x820f0000, 0x0a0000, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_CFG) */ 134 { 0x820f1000, 0x0a0600, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_TRB) */ 135 { 0x820f2000, 0x0a0800, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_AGG) */ 136 { 0x820f3000, 0x0a0c00, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_ARB) */ 137 { 0x820f4000, 0x0a1000, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_TMAC) */ 138 { 0x820f5000, 0x0a1400, 0x0000800 }, /* WF_LMAC_TOP BN1 (WF_RMAC) */ 139 { 0x820f7000, 0x0a1e00, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_DMA) */ 140 { 0x820f9000, 0x0a3400, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_WTBLOFF) */ 141 { 0x820fa000, 0x0a4000, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_ETBF) */ 142 { 0x820fb000, 0x0a4200, 0x0000400 }, /* WF_LMAC_TOP BN1 (WF_LPON) */ 143 { 0x820fc000, 0x0a4600, 0x0000200 }, /* WF_LMAC_TOP BN1 (WF_INT) */ 144 { 0x820fd000, 0x0a4800, 0x0000800 }, /* WF_LMAC_TOP BN1 (WF_MIB) */ 145 { 0x820c4000, 0x0a8000, 0x0004000 }, /* WF_LMAC_TOP BN1 (WF_MUCOP) */ 146 { 0x820b0000, 0x0ae000, 0x0001000 }, /* [APB2] WFSYS_ON */ 147 { 0x80020000, 0x0b0000, 0x0010000 }, /* WF_TOP_MISC_OFF */ 148 { 0x81020000, 0x0c0000, 0x0010000 }, /* WF_TOP_MISC_ON */ 149 { 0x7c020000, 0x0d0000, 0x0010000 }, /* CONN_INFRA, wfdma */ 150 { 0x7c060000, 0x0e0000, 0x0010000 }, /* CONN_INFRA, conn_host_csr_top */ 151 { 0x7c000000, 0x0f0000, 0x0010000 }, /* CONN_INFRA */ 152 { 0x70020000, 0x1f0000, 0x0010000 }, /* Reserved for CBTOP, can't switch */ 153 { 0x7c500000, 0x060000, 0x2000000 }, /* remap */ 154 { 0x0, 0x0, 0x0 } /* End */ 155 }; 156 int i; 157 158 if (addr < 0x200000) 159 return addr; 160 161 mt7925_reg_remap_restore(dev); 162 163 for (i = 0; i < ARRAY_SIZE(fixed_map); i++) { 164 u32 ofs; 165 166 if (addr < fixed_map[i].phys) 167 continue; 168 169 ofs = addr - fixed_map[i].phys; 170 if (ofs > fixed_map[i].size) 171 continue; 172 173 return fixed_map[i].maps + ofs; 174 } 175 176 if ((addr >= 0x18000000 && addr < 0x18c00000) || 177 (addr >= 0x70000000 && addr < 0x78000000) || 178 (addr >= 0x7c000000 && addr < 0x7c400000)) 179 return mt7925_reg_map_l1(dev, addr); 180 181 return mt7925_reg_map_l2(dev, addr); 182 } 183 184 static u32 mt7925_rr(struct mt76_dev *mdev, u32 offset) 185 { 186 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 187 u32 addr = __mt7925_reg_addr(dev, offset); 188 189 return dev->bus_ops->rr(mdev, addr); 190 } 191 192 static void mt7925_wr(struct mt76_dev *mdev, u32 offset, u32 val) 193 { 194 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 195 u32 addr = __mt7925_reg_addr(dev, offset); 196 197 dev->bus_ops->wr(mdev, addr, val); 198 } 199 200 static u32 mt7925_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val) 201 { 202 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 203 u32 addr = __mt7925_reg_addr(dev, offset); 204 205 return dev->bus_ops->rmw(mdev, addr, mask, val); 206 } 207 208 static int mt7925_dma_init(struct mt792x_dev *dev) 209 { 210 int ret; 211 212 mt76_dma_attach(&dev->mt76); 213 214 ret = mt792x_dma_disable(dev, true); 215 if (ret) 216 return ret; 217 218 /* init tx queue */ 219 ret = mt76_connac_init_tx_queues(dev->phy.mt76, MT7925_TXQ_BAND0, 220 MT7925_TX_RING_SIZE, 221 MT_TX_RING_BASE, NULL, 0); 222 if (ret) 223 return ret; 224 225 mt76_wr(dev, MT_WFDMA0_TX_RING0_EXT_CTRL, 0x4); 226 227 /* command to WM */ 228 ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, MT7925_TXQ_MCU_WM, 229 MT7925_TX_MCU_RING_SIZE, MT_TX_RING_BASE); 230 if (ret) 231 return ret; 232 233 /* firmware download */ 234 ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_FWDL, MT7925_TXQ_FWDL, 235 MT7925_TX_FWDL_RING_SIZE, MT_TX_RING_BASE); 236 if (ret) 237 return ret; 238 239 /* rx event */ 240 ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU], 241 MT7925_RXQ_MCU_WM, MT7925_RX_MCU_RING_SIZE, 242 MT_RX_BUF_SIZE, MT_RX_EVENT_RING_BASE); 243 if (ret) 244 return ret; 245 246 /* rx data */ 247 ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN], 248 MT7925_RXQ_BAND0, MT7925_RX_RING_SIZE, 249 MT_RX_BUF_SIZE, MT_RX_DATA_RING_BASE); 250 if (ret) 251 return ret; 252 253 ret = mt76_init_queues(dev, mt792x_poll_rx); 254 if (ret < 0) 255 return ret; 256 257 netif_napi_add_tx(dev->mt76.tx_napi_dev, &dev->mt76.tx_napi, 258 mt792x_poll_tx); 259 napi_enable(&dev->mt76.tx_napi); 260 261 return mt792x_dma_enable(dev); 262 } 263 264 static int mt7925_pci_probe(struct pci_dev *pdev, 265 const struct pci_device_id *id) 266 { 267 static const struct mt76_driver_ops drv_ops = { 268 /* txwi_size = txd size + txp size */ 269 .txwi_size = MT_TXD_SIZE + sizeof(struct mt76_connac_hw_txp), 270 .drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ | 271 MT_DRV_AMSDU_OFFLOAD, 272 .survey_flags = SURVEY_INFO_TIME_TX | 273 SURVEY_INFO_TIME_RX | 274 SURVEY_INFO_TIME_BSS_RX, 275 .token_size = MT7925_TOKEN_SIZE, 276 .tx_prepare_skb = mt7925e_tx_prepare_skb, 277 .tx_complete_skb = mt76_connac_tx_complete_skb, 278 .rx_check = mt7925_rx_check, 279 .rx_skb = mt7925_queue_rx_skb, 280 .rx_poll_complete = mt792x_rx_poll_complete, 281 .sta_add = mt7925_mac_sta_add, 282 .sta_event = mt7925_mac_sta_event, 283 .sta_remove = mt7925_mac_sta_remove, 284 .update_survey = mt792x_update_channel, 285 }; 286 static const struct mt792x_hif_ops mt7925_pcie_ops = { 287 .init_reset = mt7925e_init_reset, 288 .reset = mt7925e_mac_reset, 289 .mcu_init = mt7925e_mcu_init, 290 .drv_own = mt792xe_mcu_drv_pmctrl, 291 .fw_own = mt792xe_mcu_fw_pmctrl, 292 }; 293 static const struct mt792x_irq_map irq_map = { 294 .host_irq_enable = MT_WFDMA0_HOST_INT_ENA, 295 .tx = { 296 .all_complete_mask = MT_INT_TX_DONE_ALL, 297 .mcu_complete_mask = MT_INT_TX_DONE_MCU, 298 }, 299 .rx = { 300 .data_complete_mask = HOST_RX_DONE_INT_ENA2, 301 .wm_complete_mask = HOST_RX_DONE_INT_ENA0, 302 }, 303 }; 304 struct ieee80211_ops *ops; 305 struct mt76_bus_ops *bus_ops; 306 struct mt792x_dev *dev; 307 struct mt76_dev *mdev; 308 u8 features; 309 int ret; 310 u16 cmd; 311 312 ret = pcim_enable_device(pdev); 313 if (ret) 314 return ret; 315 316 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); 317 if (ret) 318 return ret; 319 320 pci_read_config_word(pdev, PCI_COMMAND, &cmd); 321 if (!(cmd & PCI_COMMAND_MEMORY)) { 322 cmd |= PCI_COMMAND_MEMORY; 323 pci_write_config_word(pdev, PCI_COMMAND, cmd); 324 } 325 pci_set_master(pdev); 326 327 ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES); 328 if (ret < 0) 329 return ret; 330 331 ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); 332 if (ret) 333 goto err_free_pci_vec; 334 335 if (mt7925_disable_aspm) 336 mt76_pci_disable_aspm(pdev); 337 338 ops = mt792x_get_mac80211_ops(&pdev->dev, &mt7925_ops, 339 (void *)id->driver_data, &features); 340 if (!ops) { 341 ret = -ENOMEM; 342 goto err_free_pci_vec; 343 } 344 345 mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), ops, &drv_ops); 346 if (!mdev) { 347 ret = -ENOMEM; 348 goto err_free_pci_vec; 349 } 350 351 pci_set_drvdata(pdev, mdev); 352 353 dev = container_of(mdev, struct mt792x_dev, mt76); 354 dev->fw_features = features; 355 dev->hif_ops = &mt7925_pcie_ops; 356 dev->irq_map = &irq_map; 357 mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]); 358 tasklet_init(&mdev->irq_tasklet, mt792x_irq_tasklet, (unsigned long)dev); 359 360 dev->phy.dev = dev; 361 dev->phy.mt76 = &dev->mt76.phy; 362 dev->mt76.phy.priv = &dev->phy; 363 dev->bus_ops = dev->mt76.bus; 364 bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops), 365 GFP_KERNEL); 366 if (!bus_ops) { 367 ret = -ENOMEM; 368 goto err_free_dev; 369 } 370 371 bus_ops->rr = mt7925_rr; 372 bus_ops->wr = mt7925_wr; 373 bus_ops->rmw = mt7925_rmw; 374 dev->mt76.bus = bus_ops; 375 376 if (!mt7925_disable_aspm && mt76_pci_aspm_supported(pdev)) 377 dev->aspm_supported = true; 378 379 ret = __mt792x_mcu_fw_pmctrl(dev); 380 if (ret) 381 goto err_free_dev; 382 383 ret = __mt792xe_mcu_drv_pmctrl(dev); 384 if (ret) 385 goto err_free_dev; 386 387 mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | 388 (mt76_rr(dev, MT_HW_REV) & 0xff); 389 390 dev_info(mdev->dev, "ASIC revision: %04x\n", mdev->rev); 391 392 mt76_rmw_field(dev, MT_HW_EMI_CTL, MT_HW_EMI_CTL_SLPPROT_EN, 1); 393 394 ret = mt792x_wfsys_reset(dev); 395 if (ret) 396 goto err_free_dev; 397 398 mt76_wr(dev, irq_map.host_irq_enable, 0); 399 400 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); 401 402 ret = devm_request_irq(mdev->dev, pdev->irq, mt792x_irq_handler, 403 IRQF_SHARED, KBUILD_MODNAME, dev); 404 if (ret) 405 goto err_free_dev; 406 407 ret = mt7925_dma_init(dev); 408 if (ret) 409 goto err_free_irq; 410 411 ret = mt7925_register_device(dev); 412 if (ret) 413 goto err_free_irq; 414 415 return 0; 416 417 err_free_irq: 418 devm_free_irq(&pdev->dev, pdev->irq, dev); 419 err_free_dev: 420 mt76_free_device(&dev->mt76); 421 err_free_pci_vec: 422 pci_free_irq_vectors(pdev); 423 424 return ret; 425 } 426 427 static void mt7925_pci_remove(struct pci_dev *pdev) 428 { 429 struct mt76_dev *mdev = pci_get_drvdata(pdev); 430 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 431 432 mt7925e_unregister_device(dev); 433 set_bit(MT76_REMOVED, &mdev->phy.state); 434 devm_free_irq(&pdev->dev, pdev->irq, dev); 435 mt76_free_device(&dev->mt76); 436 pci_free_irq_vectors(pdev); 437 } 438 439 #if !defined(__FreeBSD__) || defined(CONFIG_PM_SLEEP) 440 static int mt7925_pci_suspend(struct device *device) 441 { 442 struct pci_dev *pdev = to_pci_dev(device); 443 struct mt76_dev *mdev = pci_get_drvdata(pdev); 444 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 445 struct mt76_connac_pm *pm = &dev->pm; 446 int i, err, ret; 447 448 pm->suspended = true; 449 dev->hif_resumed = false; 450 flush_work(&dev->reset_work); 451 cancel_delayed_work_sync(&pm->ps_work); 452 cancel_work_sync(&pm->wake_work); 453 454 mt7925_roc_abort_sync(dev); 455 456 err = mt792x_mcu_drv_pmctrl(dev); 457 if (err < 0) 458 goto restore_suspend; 459 460 wait_event_timeout(dev->wait, 461 !dev->regd_in_progress, 5 * HZ); 462 463 /* always enable deep sleep during suspend to reduce 464 * power consumption 465 */ 466 mt7925_mcu_set_deep_sleep(dev, true); 467 468 mt76_connac_mcu_set_hif_suspend(mdev, true, false); 469 ret = wait_event_timeout(dev->wait, 470 dev->hif_idle, 3 * HZ); 471 if (!ret) { 472 err = -ETIMEDOUT; 473 goto restore_suspend; 474 } 475 476 napi_disable(&mdev->tx_napi); 477 mt76_worker_disable(&mdev->tx_worker); 478 479 mt76_for_each_q_rx(mdev, i) { 480 napi_disable(&mdev->napi[i]); 481 } 482 483 /* wait until dma is idle */ 484 mt76_poll(dev, MT_WFDMA0_GLO_CFG, 485 MT_WFDMA0_GLO_CFG_TX_DMA_BUSY | 486 MT_WFDMA0_GLO_CFG_RX_DMA_BUSY, 0, 1000); 487 488 /* put dma disabled */ 489 mt76_clear(dev, MT_WFDMA0_GLO_CFG, 490 MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); 491 492 /* disable interrupt */ 493 mt76_wr(dev, dev->irq_map->host_irq_enable, 0); 494 mt76_wr(dev, MT_WFDMA0_HOST_INT_DIS, 495 dev->irq_map->tx.all_complete_mask | 496 MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD); 497 498 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0); 499 500 synchronize_irq(pdev->irq); 501 tasklet_kill(&mdev->irq_tasklet); 502 503 err = mt792x_mcu_fw_pmctrl(dev); 504 if (err) 505 goto restore_napi; 506 507 return 0; 508 509 restore_napi: 510 mt76_for_each_q_rx(mdev, i) { 511 napi_enable(&mdev->napi[i]); 512 } 513 napi_enable(&mdev->tx_napi); 514 515 if (!pm->ds_enable) 516 mt7925_mcu_set_deep_sleep(dev, false); 517 518 mt76_connac_mcu_set_hif_suspend(mdev, false, false); 519 ret = wait_event_timeout(dev->wait, 520 dev->hif_resumed, 3 * HZ); 521 if (!ret) 522 err = -ETIMEDOUT; 523 restore_suspend: 524 pm->suspended = false; 525 526 if (err < 0) 527 mt792x_reset(&dev->mt76); 528 529 return err; 530 } 531 532 static int mt7925_pci_resume(struct device *device) 533 { 534 struct pci_dev *pdev = to_pci_dev(device); 535 struct mt76_dev *mdev = pci_get_drvdata(pdev); 536 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 537 struct mt76_connac_pm *pm = &dev->pm; 538 int i, err, ret; 539 540 dev->hif_idle = false; 541 err = mt792x_mcu_drv_pmctrl(dev); 542 if (err < 0) 543 goto failed; 544 545 mt792x_wpdma_reinit_cond(dev); 546 547 /* enable interrupt */ 548 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); 549 mt76_connac_irq_enable(&dev->mt76, 550 dev->irq_map->tx.all_complete_mask | 551 MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD); 552 mt76_set(dev, MT_MCU2HOST_SW_INT_ENA, MT_MCU_CMD_WAKE_RX_PCIE); 553 554 /* put dma enabled */ 555 mt76_set(dev, MT_WFDMA0_GLO_CFG, 556 MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); 557 558 mt76_worker_enable(&mdev->tx_worker); 559 560 mt76_for_each_q_rx(mdev, i) { 561 napi_enable(&mdev->napi[i]); 562 } 563 napi_enable(&mdev->tx_napi); 564 565 local_bh_disable(); 566 mt76_for_each_q_rx(mdev, i) { 567 napi_schedule(&mdev->napi[i]); 568 } 569 napi_schedule(&mdev->tx_napi); 570 local_bh_enable(); 571 572 mt76_connac_mcu_set_hif_suspend(mdev, false, false); 573 ret = wait_event_timeout(dev->wait, 574 dev->hif_resumed, 3 * HZ); 575 if (!ret) { 576 err = -ETIMEDOUT; 577 goto failed; 578 } 579 580 /* restore previous ds setting */ 581 if (!pm->ds_enable) 582 mt7925_mcu_set_deep_sleep(dev, false); 583 584 mt7925_regd_update(dev); 585 failed: 586 pm->suspended = false; 587 588 if (err < 0) 589 mt792x_reset(&dev->mt76); 590 591 return err; 592 } 593 #endif 594 595 static void mt7925_pci_shutdown(struct pci_dev *pdev) 596 { 597 mt7925_pci_remove(pdev); 598 } 599 600 static DEFINE_SIMPLE_DEV_PM_OPS(mt7925_pm_ops, mt7925_pci_suspend, mt7925_pci_resume); 601 602 static struct pci_driver mt7925_pci_driver = { 603 .name = KBUILD_MODNAME, 604 .id_table = mt7925_pci_device_table, 605 .probe = mt7925_pci_probe, 606 .remove = mt7925_pci_remove, 607 .shutdown = mt7925_pci_shutdown, 608 .driver.pm = pm_sleep_ptr(&mt7925_pm_ops), 609 }; 610 611 module_pci_driver(mt7925_pci_driver); 612 613 MODULE_DEVICE_TABLE(pci, mt7925_pci_device_table); 614 MODULE_FIRMWARE(MT7925_FIRMWARE_WM); 615 MODULE_FIRMWARE(MT7925_ROM_PATCH); 616 MODULE_AUTHOR("Deren Wu <deren.wu@mediatek.com>"); 617 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>"); 618 MODULE_DESCRIPTION("MediaTek MT7925E (PCIe) wireless driver"); 619 MODULE_LICENSE("Dual BSD/GPL"); 620 #if defined(__FreeBSD__) 621 MODULE_VERSION(mt7925_pci, 1); 622 MODULE_DEPEND(mt7925_pci, linuxkpi, 1, 1, 1); 623 MODULE_DEPEND(mt7925_pci, linuxkpi_wlan, 1, 1, 1); 624 MODULE_DEPEND(mt7925_pci, mt76_core, 1, 1, 1); 625 #endif 626