1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (C) 2019 MediaTek Inc. 3 * 4 * Author: Felix Fietkau <nbd@nbd.name> 5 * Lorenzo Bianconi <lorenzo@kernel.org> 6 * Sean Wang <sean.wang@mediatek.com> 7 */ 8 #include <linux/kernel.h> 9 #include <linux/module.h> 10 11 #include "mt7615.h" 12 #include "mac.h" 13 #include "mcu.h" 14 #include "regs.h" 15 16 static int 17 mt7663u_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb, 18 int cmd, int *seq) 19 { 20 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 21 int ret, ep, len, pad; 22 23 mt7615_mcu_fill_msg(dev, skb, cmd, seq); 24 if (cmd != MCU_CMD(FW_SCATTER)) 25 ep = MT_EP_OUT_INBAND_CMD; 26 else 27 ep = MT_EP_OUT_AC_BE; 28 29 len = skb->len; 30 put_unaligned_le32(len, skb_push(skb, sizeof(len))); 31 pad = round_up(skb->len, 4) + 4 - skb->len; 32 ret = mt76_skb_adjust_pad(skb, pad); 33 if (ret < 0) 34 goto out; 35 36 ret = mt76u_bulk_msg(&dev->mt76, skb->data, skb->len, NULL, 37 1000, ep); 38 39 out: 40 dev_kfree_skb(skb); 41 42 return ret; 43 } 44 45 int mt7663u_mcu_power_on(struct mt7615_dev *dev) 46 { 47 int ret; 48 49 ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON, 50 USB_DIR_OUT | USB_TYPE_VENDOR, 51 0x0, 0x1, NULL, 0); 52 if (ret) 53 return ret; 54 55 if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, 56 MT_TOP_MISC2_FW_PWR_ON, 57 FW_STATE_PWR_ON << 1, 500)) { 58 dev_err(dev->mt76.dev, "Timeout for power on\n"); 59 ret = -EIO; 60 } 61 62 return 0; 63 } 64 65 int mt7663u_mcu_init(struct mt7615_dev *dev) 66 { 67 static const struct mt76_mcu_ops mt7663u_mcu_ops = { 68 .headroom = MT_USB_HDR_SIZE + sizeof(struct mt7615_mcu_txd), 69 .tailroom = MT_USB_TAIL_SIZE, 70 .mcu_skb_send_msg = mt7663u_mcu_send_message, 71 .mcu_parse_response = mt7615_mcu_parse_response, 72 .mcu_restart = mt7615_mcu_restart, 73 }; 74 int ret; 75 76 dev->mt76.mcu_ops = &mt7663u_mcu_ops, 77 78 mt76_set(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN); 79 if (test_and_clear_bit(MT76_STATE_POWER_OFF, &dev->mphy.state)) { 80 ret = mt7615_mcu_restart(&dev->mt76); 81 if (ret) 82 return ret; 83 84 if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, 85 MT_TOP_MISC2_FW_PWR_ON, 0, 500)) 86 return -EIO; 87 88 ret = mt7663u_mcu_power_on(dev); 89 if (ret) 90 return ret; 91 } 92 93 ret = __mt7663_load_firmware(dev); 94 if (ret) 95 return ret; 96 97 mt76_clear(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN); 98 set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); 99 100 return 0; 101 } 102