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 mdev->mcu.timeout = 3 * HZ; 34 35 if (cmd == MCU_CMD(FW_SCATTER)) 36 txq = MT_MCUQ_FWDL; 37 38 return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0); 39 } 40 41 int mt7921e_mcu_init(struct mt7921_dev *dev) 42 { 43 static const struct mt76_mcu_ops mt7921_mcu_ops = { 44 .headroom = sizeof(struct mt76_connac2_mcu_txd), 45 .mcu_skb_send_msg = mt7921_mcu_send_message, 46 .mcu_parse_response = mt7921_mcu_parse_response, 47 .mcu_restart = mt76_connac_mcu_restart, 48 }; 49 int err; 50 51 dev->mt76.mcu_ops = &mt7921_mcu_ops; 52 53 err = mt7921e_driver_own(dev); 54 if (err) 55 return err; 56 57 mt76_rmw_field(dev, MT_PCIE_MAC_PM, MT_PCIE_MAC_PM_L0S_DIS, 1); 58 59 err = mt7921_run_firmware(dev); 60 61 mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false); 62 63 return err; 64 } 65 66 int __mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev) 67 { 68 int i, err = 0; 69 70 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 71 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN); 72 if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, 73 PCIE_LPCR_HOST_OWN_SYNC, 0, 50)) 74 break; 75 } 76 77 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 78 dev_err(dev->mt76.dev, "driver own failed\n"); 79 err = -EIO; 80 } 81 82 return err; 83 } 84 85 int mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev) 86 { 87 struct mt76_phy *mphy = &dev->mt76.phy; 88 struct mt76_connac_pm *pm = &dev->pm; 89 int err; 90 91 err = __mt7921e_mcu_drv_pmctrl(dev); 92 if (err < 0) 93 goto out; 94 95 mt7921_wpdma_reinit_cond(dev); 96 clear_bit(MT76_STATE_PM, &mphy->state); 97 98 pm->stats.last_wake_event = jiffies; 99 pm->stats.doze_time += pm->stats.last_wake_event - 100 pm->stats.last_doze_event; 101 out: 102 return err; 103 } 104 105 int mt7921e_mcu_fw_pmctrl(struct mt7921_dev *dev) 106 { 107 struct mt76_phy *mphy = &dev->mt76.phy; 108 struct mt76_connac_pm *pm = &dev->pm; 109 int i; 110 111 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 112 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN); 113 if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, 114 PCIE_LPCR_HOST_OWN_SYNC, 4, 50)) 115 break; 116 } 117 118 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 119 dev_err(dev->mt76.dev, "firmware own failed\n"); 120 clear_bit(MT76_STATE_PM, &mphy->state); 121 return -EIO; 122 } 123 124 pm->stats.last_doze_event = jiffies; 125 pm->stats.awake_time += pm->stats.last_doze_event - 126 pm->stats.last_wake_event; 127 128 return 0; 129 } 130