C++ (Cpp) carl9170_usb_submit_cmd_urbの例

コード例 #1

ファイル: usb.c プロジェクト: JonnyH/pandora-kernel

int __carl9170_exec_cmd(struct ar9170 *ar, struct carl9170_cmd *cmd,
			const bool free_buf)
{
	struct urb *urb;
	int err = 0;

	if (!IS_INITIALIZED(ar)) {
		err = -EPERM;
		goto err_free;
	}

	if (WARN_ON(cmd->hdr.len > CARL9170_MAX_CMD_LEN - 4)) {
		err = -EINVAL;
		goto err_free;
	}

	urb = usb_alloc_urb(0, GFP_ATOMIC);
	if (!urb) {
		err = -ENOMEM;
		goto err_free;
	}

	if (ar->usb_ep_cmd_is_bulk)
		usb_fill_bulk_urb(urb, ar->udev,
				  usb_sndbulkpipe(ar->udev, AR9170_USB_EP_CMD),
				  cmd, cmd->hdr.len + 4,
				  carl9170_usb_cmd_complete, ar);
	else
		usb_fill_int_urb(urb, ar->udev,
				 usb_sndintpipe(ar->udev, AR9170_USB_EP_CMD),
				 cmd, cmd->hdr.len + 4,
				 carl9170_usb_cmd_complete, ar, 1);

	if (free_buf)
		urb->transfer_flags |= URB_FREE_BUFFER;

	usb_anchor_urb(urb, &ar->tx_cmd);
	usb_free_urb(urb);

	return carl9170_usb_submit_cmd_urb(ar);

err_free:
	if (free_buf)
		kfree(cmd);

	return err;
}

コード例 #2

ファイル: usb.c プロジェクト: JonnyH/pandora-kernel

static void carl9170_usb_cmd_complete(struct urb *urb)
{
	struct ar9170 *ar = urb->context;
	int err = 0;

	if (WARN_ON_ONCE(!ar))
		return;

	atomic_dec(&ar->tx_cmd_urbs);

	switch (urb->status) {
	/* everything is fine */
	case 0:
		break;

	/* disconnect */
	case -ENOENT:
	case -ECONNRESET:
	case -ENODEV:
	case -ESHUTDOWN:
		return;

	default:
		err = urb->status;
		break;
	}

	if (!IS_INITIALIZED(ar))
		return;

	if (err)
		dev_err(&ar->udev->dev, "submit cmd cb failed (%d).\n", err);

	err = carl9170_usb_submit_cmd_urb(ar);
	if (err)
		dev_err(&ar->udev->dev, "submit cmd failed (%d).\n", err);
}

コード例 #3

ファイル: if_otus_cmd.c プロジェクト: erikarn/otus

/*
 * Send a command to the firmware.
 */
int
otus_send_cmd(struct ar9170 *ar, struct carl9170_cmd *cmd)
{

	if (cmd->hdr.len > CARL9170_MAX_CMD_LEN - 4) {
		return (EINVAL);
	}

	/*
	 * Commands are sent on the CMD endpoint.
	 */

	usb_fill_int_urb(urb, ar->udev, usb_sndintpipe(ar->udev,
		AR9170_USB_EP_CMD), cmd, cmd->hdr.len + 4,
		carl9170_usb_cmd_complete, ar, 1);

	if (free_buf)
		urb->transfer_flags |= URB_FREE_BUFFER;

	usb_anchor_urb(urb, &ar->tx_cmd);
	usb_free_urb(urb);

	return carl9170_usb_submit_cmd_urb(ar);
}