示例#1
0
/*
 *		queue push/pop
 */
static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt)
{
	struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt);
	struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv);
	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
	struct urb *urb = ureq->urb;
	struct device *dev = usbhs_priv_to_dev(priv);
	int status = 0;

	dev_dbg(dev, "%s\n", __func__);

	if (!urb) {
		dev_warn(dev, "pkt doesn't have urb\n");
		return;
	}

	if (!usbhsh_is_running(hpriv))
		status = -ESHUTDOWN;

	urb->actual_length = pkt->actual;

	usbhsh_endpoint_sequence_save(hpriv, urb, pkt);
	usbhsh_ureq_free(hpriv, ureq);

	usbhsh_pipe_detach(hpriv, usbhsh_ep_to_uep(urb->ep));

	usb_hcd_unlink_urb_from_ep(hcd, urb);
	usb_hcd_giveback_urb(hcd, urb, status);
}
示例#2
0
/*
 *		DCP data stage
 */
static void usbhsh_data_stage_packet_done(struct usbhs_priv *priv,
					  struct usbhs_pkt *pkt)
{
	struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt);
	struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv);

	/* this ureq was connected to urb when usbhsh_urb_enqueue()  */

	usbhsh_ureq_free(hpriv, ureq);
}
示例#3
0
/*
 *		dma map functions
 */
static int usbhsh_dma_map_ctrl(struct usbhs_pkt *pkt, int map)
{
	if (map) {
		struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt);
		struct urb *urb = ureq->urb;

		/* it can not use scatter/gather */
		if (urb->num_sgs)
			return -EINVAL;

		pkt->dma = urb->transfer_dma;
		if (!pkt->dma)
			return -EINVAL;
	}

	return 0;
}