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 }; 48 int err; 49 50 dev->mt76.mcu_ops = &mt7921_mcu_ops; 51 52 err = mt7921e_driver_own(dev); 53 if (err) 54 return err; 55 56 mt76_rmw_field(dev, MT_PCIE_MAC_PM, MT_PCIE_MAC_PM_L0S_DIS, 1); 57 58 err = mt7921_run_firmware(dev); 59 60 mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false); 61 62 return err; 63 } 64 65 int __mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev) 66 { 67 int i, err = 0; 68 69 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 70 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN); 71 if (mt76_poll_msec_tick(dev, MT_CONN_ON_LPCTL, 72 PCIE_LPCR_HOST_OWN_SYNC, 0, 50, 1)) 73 break; 74 } 75 76 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 77 dev_err(dev->mt76.dev, "driver own failed\n"); 78 err = -EIO; 79 } 80 81 return err; 82 } 83 84 int mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev) 85 { 86 struct mt76_phy *mphy = &dev->mt76.phy; 87 struct mt76_connac_pm *pm = &dev->pm; 88 int err; 89 90 err = __mt7921e_mcu_drv_pmctrl(dev); 91 if (err < 0) 92 goto out; 93 94 mt7921_wpdma_reinit_cond(dev); 95 clear_bit(MT76_STATE_PM, &mphy->state); 96 97 pm->stats.last_wake_event = jiffies; 98 pm->stats.doze_time += pm->stats.last_wake_event - 99 pm->stats.last_doze_event; 100 out: 101 return err; 102 } 103 104 int mt7921e_mcu_fw_pmctrl(struct mt7921_dev *dev) 105 { 106 struct mt76_phy *mphy = &dev->mt76.phy; 107 struct mt76_connac_pm *pm = &dev->pm; 108 int i; 109 110 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 111 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN); 112 if (mt76_poll_msec_tick(dev, MT_CONN_ON_LPCTL, 113 PCIE_LPCR_HOST_OWN_SYNC, 4, 50, 1)) 114 break; 115 } 116 117 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 118 dev_err(dev->mt76.dev, "firmware own failed\n"); 119 clear_bit(MT76_STATE_PM, &mphy->state); 120 return -EIO; 121 } 122 123 pm->stats.last_doze_event = jiffies; 124 pm->stats.awake_time += pm->stats.last_doze_event - 125 pm->stats.last_wake_event; 126 127 return 0; 128 } 129