50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
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// 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(const void *data, int head_len,
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int data_len, int tail_len)
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{
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struct sk_buff *skb;
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skb = alloc_skb(head_len + data_len + tail_len,
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GFP_KERNEL);
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if (!skb)
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return NULL;
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skb_reserve(skb, head_len);
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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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/* mmio */
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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->mmio.mcu.wait,
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!skb_queue_empty(&dev->mmio.mcu.res_q),
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timeout);
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return skb_dequeue(&dev->mmio.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->mmio.mcu.res_q, skb);
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wake_up(&dev->mmio.mcu.wait);
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}
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EXPORT_SYMBOL_GPL(mt76_mcu_rx_event);
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