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 = 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 = mt76_connac_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 int i, err = 0; 65 66 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 67 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN); 68 if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, 69 PCIE_LPCR_HOST_OWN_SYNC, 0, 50)) 70 break; 71 } 72 73 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 74 dev_err(dev->mt76.dev, "driver own failed\n"); 75 err = -EIO; 76 } 77 78 return err; 79 } 80 81 int mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev) 82 { 83 struct mt76_phy *mphy = &dev->mt76.phy; 84 struct mt76_connac_pm *pm = &dev->pm; 85 int err; 86 87 err = __mt7921e_mcu_drv_pmctrl(dev); 88 if (err < 0) 89 goto out; 90 91 mt7921_wpdma_reinit_cond(dev); 92 clear_bit(MT76_STATE_PM, &mphy->state); 93 94 pm->stats.last_wake_event = jiffies; 95 pm->stats.doze_time += pm->stats.last_wake_event - 96 pm->stats.last_doze_event; 97 out: 98 return err; 99 } 100 101 int mt7921e_mcu_fw_pmctrl(struct mt7921_dev *dev) 102 { 103 struct mt76_phy *mphy = &dev->mt76.phy; 104 struct mt76_connac_pm *pm = &dev->pm; 105 int i, err = 0; 106 107 for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { 108 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN); 109 if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, 110 PCIE_LPCR_HOST_OWN_SYNC, 4, 50)) 111 break; 112 } 113 114 if (i == MT7921_DRV_OWN_RETRY_COUNT) { 115 dev_err(dev->mt76.dev, "firmware own failed\n"); 116 clear_bit(MT76_STATE_PM, &mphy->state); 117 err = -EIO; 118 } 119 120 pm->stats.last_doze_event = jiffies; 121 pm->stats.awake_time += pm->stats.last_doze_event - 122 pm->stats.last_wake_event; 123 124 return err; 125 } 126