52 lines
1.2 KiB
C
Executable file
52 lines
1.2 KiB
C
Executable file
// SPDX-License-Identifier: ISC
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/*
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* Copyright (C) 2019 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
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*/
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#include "mt76.h"
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struct sk_buff *
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mt76_mcu_msg_alloc(struct mt76_dev *dev, const void *data,
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int data_len)
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{
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const struct mt76_mcu_ops *ops = dev->mcu_ops;
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int length = ops->headroom + data_len + ops->tailroom;
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struct sk_buff *skb;
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skb = alloc_skb(length, GFP_KERNEL);
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if (!skb)
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return NULL;
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memset(skb->head, 0, length);
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skb_reserve(skb, ops->headroom);
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if (data && data_len)
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skb_put_data(skb, data, data_len);
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return skb;
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}
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EXPORT_SYMBOL_GPL(mt76_mcu_msg_alloc);
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struct sk_buff *mt76_mcu_get_response(struct mt76_dev *dev,
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unsigned long expires)
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{
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unsigned long timeout;
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if (!time_is_after_jiffies(expires))
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return NULL;
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timeout = expires - jiffies;
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wait_event_timeout(dev->mcu.wait,
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(!skb_queue_empty(&dev->mcu.res_q) ||
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test_bit(MT76_MCU_RESET, &dev->phy.state)),
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timeout);
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return skb_dequeue(&dev->mcu.res_q);
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}
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EXPORT_SYMBOL_GPL(mt76_mcu_get_response);
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void mt76_mcu_rx_event(struct mt76_dev *dev, struct sk_buff *skb)
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{
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skb_queue_tail(&dev->mcu.res_q, skb);
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wake_up(&dev->mcu.wait);
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}
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EXPORT_SYMBOL_GPL(mt76_mcu_rx_event);
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