Esempio n. 1
0
/*
 *		DCP status stage
 */
static int usbhsh_status_stage_packet_push(struct usbhsh_hpriv *hpriv,
					    struct urb *urb,
					    struct usbhs_pipe *pipe,
					    gfp_t mem_flags)
{
	struct usbhsh_request *ureq;

	/* This ureq will be freed on usbhsh_queue_done() */
	ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags);
	if (unlikely(!ureq))
		return -ENOMEM;

	if (usb_pipein(urb->pipe))
		pipe->handler = &usbhs_dcp_status_stage_in_handler;
	else
		pipe->handler = &usbhs_dcp_status_stage_out_handler;

	usbhs_pkt_push(pipe, &ureq->pkt,
		       usbhsh_queue_done,
		       NULL,
		       urb->transfer_buffer_length,
		       0, -1);

	return 0;
}
Esempio n. 2
0
static int usbhsh_queue_push(struct usb_hcd *hcd,
			     struct urb *urb,
			     gfp_t mem_flags)
{
	struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd);
	struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep);
	struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep);
	struct device *dev = usbhsh_hcd_to_dev(hcd);
	struct usbhsh_request *ureq;
	void *buf;
	int len, sequence;

	if (usb_pipeisoc(urb->pipe)) {
		dev_err(dev, "pipe iso is not supported now\n");
		return -EIO;
	}

	/* this ureq will be freed on usbhsh_queue_done() */
	ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags);
	if (unlikely(!ureq)) {
		dev_err(dev, "ureq alloc fail\n");
		return -ENOMEM;
	}

	if (usb_pipein(urb->pipe))
		pipe->handler = &usbhs_fifo_dma_pop_handler;
	else
		pipe->handler = &usbhs_fifo_dma_push_handler;

	buf = (void *)(urb->transfer_buffer + urb->actual_length);
	len = urb->transfer_buffer_length - urb->actual_length;

	sequence = usb_gettoggle(urb->dev,
				 usb_pipeendpoint(urb->pipe),
				 usb_pipeout(urb->pipe));

	dev_dbg(dev, "%s\n", __func__);
	usbhs_pkt_push(pipe, &ureq->pkt, usbhsh_queue_done,
		       buf, len, (urb->transfer_flags & URB_ZERO_PACKET),
		       sequence);

	usbhs_pkt_start(pipe);

	return 0;
}
Esempio n. 3
0
/*
 *		queue push/pop
 */
static void usbhsg_queue_push(struct usbhsg_uep *uep,
			      struct usbhsg_request *ureq)
{
	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
	struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq);
	struct usb_request *req = &ureq->req;

	req->actual = 0;
	req->status = -EINPROGRESS;
	usbhs_pkt_push(pipe, pkt, uep->handler,
		       req->buf, req->length, req->zero);

	dev_dbg(dev, "pipe %d : queue push (%d)\n",
		usbhs_pipe_number(pipe),
		req->length);
}