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path: root/drivers/net/wireless/mediatek/mt76/mcu.c
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Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mcu.c')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mcu.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mcu.c b/drivers/net/wireless/mediatek/mt76/mcu.c
index ade61a5334c6..d3a5e2c4f12a 100644
--- a/drivers/net/wireless/mediatek/mt76/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mcu.c
@@ -50,3 +50,83 @@ void mt76_mcu_rx_event(struct mt76_dev *dev, struct sk_buff *skb)
wake_up(&dev->mcu.wait);
}
EXPORT_SYMBOL_GPL(mt76_mcu_rx_event);
+
+int mt76_mcu_send_and_get_msg(struct mt76_dev *dev, int cmd, const void *data,
+ int len, bool wait_resp, struct sk_buff **ret_skb)
+{
+ struct sk_buff *skb;
+
+ if (dev->mcu_ops->mcu_send_msg)
+ return dev->mcu_ops->mcu_send_msg(dev, cmd, data, len, wait_resp);
+
+ skb = mt76_mcu_msg_alloc(dev, data, len);
+ if (!skb)
+ return -ENOMEM;
+
+ return mt76_mcu_skb_send_and_get_msg(dev, skb, cmd, wait_resp, ret_skb);
+}
+EXPORT_SYMBOL_GPL(mt76_mcu_send_and_get_msg);
+
+int mt76_mcu_skb_send_and_get_msg(struct mt76_dev *dev, struct sk_buff *skb,
+ int cmd, bool wait_resp,
+ struct sk_buff **ret_skb)
+{
+ unsigned long expires;
+ int ret, seq;
+
+ if (ret_skb)
+ *ret_skb = NULL;
+
+ mutex_lock(&dev->mcu.mutex);
+
+ ret = dev->mcu_ops->mcu_skb_send_msg(dev, skb, cmd, &seq);
+ if (ret < 0)
+ goto out;
+
+ if (!wait_resp) {
+ ret = 0;
+ goto out;
+ }
+
+ expires = jiffies + dev->mcu.timeout;
+
+ do {
+ skb = mt76_mcu_get_response(dev, expires);
+ ret = dev->mcu_ops->mcu_parse_response(dev, cmd, skb, seq);
+ if (!ret && ret_skb)
+ *ret_skb = skb;
+ else
+ dev_kfree_skb(skb);
+ } while (ret == -EAGAIN);
+
+out:
+ mutex_unlock(&dev->mcu.mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(mt76_mcu_skb_send_and_get_msg);
+
+int mt76_mcu_send_firmware(struct mt76_dev *dev, int cmd, const void *data,
+ int len)
+{
+ int err, cur_len;
+
+ while (len > 0) {
+ cur_len = min_t(int, 4096 - dev->mcu_ops->headroom, len);
+
+ err = mt76_mcu_send_msg(dev, cmd, data, cur_len, false);
+ if (err)
+ return err;
+
+ data += cur_len;
+ len -= cur_len;
+
+ if (dev->queue_ops->tx_cleanup)
+ dev->queue_ops->tx_cleanup(dev,
+ dev->q_mcu[MT_MCUQ_FWDL],
+ false);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mt76_mcu_send_firmware);