C++ (Cpp) mt76u_urb_error Examples

Example #1

File: usb.c Project: markus-oberhumer/linux

static void mt76u_complete_tx(struct urb *urb)
{
	struct mt76u_buf *buf = urb->context;
	struct mt76_dev *dev = buf->dev;

	if (mt76u_urb_error(urb))
		dev_err(dev->dev, "tx urb failed: %d\n", urb->status);
	buf->done = true;

	tasklet_schedule(&dev->usb.tx_tasklet);
}

Example #2

File: mt76x02_usb_mcu.c Project: AlexShiLucky/linux

static int
__mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, struct mt76u_buf *buf,
			    const void *fw_data, int len, u32 dst_addr)
{
	u8 *data = sg_virt(&buf->urb->sg[0]);
	DECLARE_COMPLETION_ONSTACK(cmpl);
	__le32 info;
	u32 val;
	int err;

	info = cpu_to_le32(FIELD_PREP(MT_MCU_MSG_PORT, CPU_TX_PORT) |
			   FIELD_PREP(MT_MCU_MSG_LEN, len) |
			   MT_MCU_MSG_TYPE_CMD);

	memcpy(data, &info, sizeof(info));
	memcpy(data + sizeof(info), fw_data, len);
	memset(data + sizeof(info) + len, 0, 4);

	mt76u_single_wr(&dev->mt76, MT_VEND_WRITE_FCE,
			MT_FCE_DMA_ADDR, dst_addr);
	len = roundup(len, 4);
	mt76u_single_wr(&dev->mt76, MT_VEND_WRITE_FCE,
			MT_FCE_DMA_LEN, len << 16);

	buf->len = MT_CMD_HDR_LEN + len + sizeof(info);
	err = mt76u_submit_buf(&dev->mt76, USB_DIR_OUT,
			       MT_EP_OUT_INBAND_CMD,
			       buf, GFP_KERNEL,
			       mt76u_mcu_complete_urb, &cmpl);
	if (err < 0)
		return err;

	if (!wait_for_completion_timeout(&cmpl,
					 msecs_to_jiffies(1000))) {
		dev_err(dev->mt76.dev, "firmware upload timed out\n");
		usb_kill_urb(buf->urb);
		return -ETIMEDOUT;
	}

	if (mt76u_urb_error(buf->urb)) {
		dev_err(dev->mt76.dev, "firmware upload failed: %d\n",
			buf->urb->status);
		return buf->urb->status;
	}

	val = mt76_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX);
	val++;
	mt76_wr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX, val);

	return 0;
}