1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2021 MediaTek Inc. */ 3 4 #include "mt7921.h" 5 #include "mcu.h" 6 7 static 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 = mt7921_mcu_fill_message(mdev, skb, cmd, seq); 30 if (ret) 31 return ret; 32 33 if (cmd == MCU_CMD_FW_SCATTER) 34 txq = MT_MCUQ_FWDL; 35 36 return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0); 37 } 38 39 int mt7921e_mcu_init(struct mt7921_dev *dev) 40 { 41 static const struct mt76_mcu_ops mt7921_mcu_ops = { 42 .headroom = sizeof(struct mt7921_mcu_txd), 43 .mcu_skb_send_msg = mt7921_mcu_send_message, 44 .mcu_parse_response = mt7921_mcu_parse_response, 45 .mcu_restart = mt7921_mcu_restart, 46 }; 47 int err; 48 49 dev->mt76.mcu_ops = &mt7921_mcu_ops; 50 51 err = mt7921e_driver_own(dev); 52 if (err) 53 return err; 54 55 err = mt7921_run_firmware(dev); 56 57 mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false); 58 59 return err; 60 } 61 62 int mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev) 63 { 64 struct mt76_phy *mphy = &dev->mt76.phy; 65 struct mt76_connac_pm *pm = &dev->pm; 66 int i, err = 0; 67 68 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 69 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN); 70 if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, 71 PCIE_LPCR_HOST_OWN_SYNC, 0, 50)) 72 break; 73 } 74 75 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 76 dev_err(dev->mt76.dev, "driver own failed\n"); 77 err = -EIO; 78 goto out; 79 } 80 81 mt7921_wpdma_reinit_cond(dev); 82 clear_bit(MT76_STATE_PM, &mphy->state); 83 84 pm->stats.last_wake_event = jiffies; 85 pm->stats.doze_time += pm->stats.last_wake_event - 86 pm->stats.last_doze_event; 87 out: 88 return err; 89 } 90 91 int mt7921e_mcu_fw_pmctrl(struct mt7921_dev *dev) 92 { 93 struct mt76_phy *mphy = &dev->mt76.phy; 94 struct mt76_connac_pm *pm = &dev->pm; 95 int i, err = 0; 96 97 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 98 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN); 99 if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, 100 PCIE_LPCR_HOST_OWN_SYNC, 4, 50)) 101 break; 102 } 103 104 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 105 dev_err(dev->mt76.dev, "firmware own failed\n"); 106 clear_bit(MT76_STATE_PM, &mphy->state); 107 err = -EIO; 108 } 109 110 pm->stats.last_doze_event = jiffies; 111 pm->stats.awake_time += pm->stats.last_doze_event - 112 pm->stats.last_wake_event; 113 114 return err; 115 } 116