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1// SPDX-License-Identifier: GPL-2.02/* 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 16static int17mt7663u_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 else27 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 39out:40 dev_kfree_skb(skb);41 42 return ret;43}44 45int 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 65int 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 };73 int ret;74 75 dev->mt76.mcu_ops = &mt7663u_mcu_ops,76 77 mt76_set(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);78 if (test_and_clear_bit(MT76_STATE_POWER_OFF, &dev->mphy.state)) {79 ret = mt7615_mcu_restart(&dev->mt76);80 if (ret)81 return ret;82 83 if (!mt76_poll_msec(dev, MT_CONN_ON_MISC,84 MT_TOP_MISC2_FW_PWR_ON, 0, 500))85 return -EIO;86 87 ret = mt7663u_mcu_power_on(dev);88 if (ret)89 return ret;90 }91 92 ret = __mt7663_load_firmware(dev);93 if (ret)94 return ret;95 96 mt76_clear(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);97 set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);98 99 return 0;100}101