1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2021 MediaTek Inc. */ 3 4 #include "mt7921.h" 5 #include "mcu.h" 6 7 int mt7921e_driver_own(struct mt7921_dev *dev) 8 { 9 u32 reg = mt7921_reg_map_l1(dev, MT_TOP_LPCR_HOST_BAND0); 10 11 mt76_wr(dev, reg, MT_TOP_LPCR_HOST_DRV_OWN); 12 if (!mt76_poll_msec(dev, reg, MT_TOP_LPCR_HOST_FW_OWN, 13 0, 500)) { 14 dev_err(dev->mt76.dev, "Timeout for driver own\n"); 15 return -EIO; 16 } 17 18 return 0; 19 } 20 21 static int 22 mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb, 23 int cmd, int *seq) 24 { 25 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); 26 enum mt76_mcuq_id txq = MT_MCUQ_WM; 27 int ret; 28 29 ret = mt76_connac2_mcu_fill_message(mdev, skb, cmd, seq); 30 if (ret) 31 return ret; 32 33 if (cmd == MCU_UNI_CMD(HIF_CTRL) || 34 cmd == MCU_UNI_CMD(SUSPEND) || 35 cmd == MCU_UNI_CMD(OFFLOAD)) 36 mdev->mcu.timeout = HZ; 37 else 38 mdev->mcu.timeout = 3 * HZ; 39 40 if (cmd == MCU_CMD(FW_SCATTER)) 41 txq = MT_MCUQ_FWDL; 42 43 return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0); 44 } 45 46 int mt7921e_mcu_init(struct mt7921_dev *dev) 47 { 48 static const struct mt76_mcu_ops mt7921_mcu_ops = { 49 .headroom = sizeof(struct mt76_connac2_mcu_txd), 50 .mcu_skb_send_msg = mt7921_mcu_send_message, 51 .mcu_parse_response = mt7921_mcu_parse_response, 52 .mcu_restart = mt76_connac_mcu_restart, 53 }; 54 int err; 55 56 dev->mt76.mcu_ops = &mt7921_mcu_ops; 57 58 err = mt7921e_driver_own(dev); 59 if (err) 60 return err; 61 62 err = mt7921_run_firmware(dev); 63 64 mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false); 65 66 return err; 67 } 68 69 int __mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev) 70 { 71 int i, err = 0; 72 73 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 74 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN); 75 if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, 76 PCIE_LPCR_HOST_OWN_SYNC, 0, 50)) 77 break; 78 } 79 80 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 81 dev_err(dev->mt76.dev, "driver own failed\n"); 82 err = -EIO; 83 } 84 85 return err; 86 } 87 88 int mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev) 89 { 90 struct mt76_phy *mphy = &dev->mt76.phy; 91 struct mt76_connac_pm *pm = &dev->pm; 92 int err; 93 94 err = __mt7921e_mcu_drv_pmctrl(dev); 95 if (err < 0) 96 goto out; 97 98 mt7921_wpdma_reinit_cond(dev); 99 clear_bit(MT76_STATE_PM, &mphy->state); 100 101 pm->stats.last_wake_event = jiffies; 102 pm->stats.doze_time += pm->stats.last_wake_event - 103 pm->stats.last_doze_event; 104 out: 105 return err; 106 } 107 108 int mt7921e_mcu_fw_pmctrl(struct mt7921_dev *dev) 109 { 110 struct mt76_phy *mphy = &dev->mt76.phy; 111 struct mt76_connac_pm *pm = &dev->pm; 112 int i; 113 114 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 115 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN); 116 if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, 117 PCIE_LPCR_HOST_OWN_SYNC, 4, 50)) 118 break; 119 } 120 121 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 122 dev_err(dev->mt76.dev, "firmware own failed\n"); 123 clear_bit(MT76_STATE_PM, &mphy->state); 124 return -EIO; 125 } 126 127 pm->stats.last_doze_event = jiffies; 128 pm->stats.awake_time += pm->stats.last_doze_event - 129 pm->stats.last_wake_event; 130 131 return 0; 132 } 133