C++ (Cpp) trace_dwc3_prepare_trb Examples

Example #1

File: ep0.c Project: oscardagrach/linux

static void dwc3_ep0_prepare_one_trb(struct dwc3_ep *dep,
		dma_addr_t buf_dma, u32 len, u32 type, bool chain)
{
	struct dwc3_trb			*trb;
	struct dwc3			*dwc;

	dwc = dep->dwc;
	trb = &dwc->ep0_trb[dep->trb_enqueue];

	if (chain)
		dep->trb_enqueue++;

	trb->bpl = lower_32_bits(buf_dma);
	trb->bph = upper_32_bits(buf_dma);
	trb->size = len;
	trb->ctrl = type;

	trb->ctrl |= (DWC3_TRB_CTRL_HWO
			| DWC3_TRB_CTRL_ISP_IMI);

	if (chain)
		trb->ctrl |= DWC3_TRB_CTRL_CHN;
	else
		trb->ctrl |= (DWC3_TRB_CTRL_IOC
				| DWC3_TRB_CTRL_LST);

	trace_dwc3_prepare_trb(dep, trb);
}

Example #2

File: ep0.c Project: 020gzh/linux

static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
		u32 len, u32 type, bool chain)
{
	struct dwc3_gadget_ep_cmd_params params;
	struct dwc3_trb			*trb;
	struct dwc3_ep			*dep;

	int				ret;

	dep = dwc->eps[epnum];
	if (dep->flags & DWC3_EP_BUSY) {
		dwc3_trace(trace_dwc3_ep0, "%s still busy", dep->name);
		return 0;
	}

	trb = &dwc->ep0_trb[dep->free_slot];

	if (chain)
		dep->free_slot++;

	trb->bpl = lower_32_bits(buf_dma);
	trb->bph = upper_32_bits(buf_dma);
	trb->size = len;
	trb->ctrl = type;

	trb->ctrl |= (DWC3_TRB_CTRL_HWO
			| DWC3_TRB_CTRL_ISP_IMI);

	if (chain)
		trb->ctrl |= DWC3_TRB_CTRL_CHN;
	else
		trb->ctrl |= (DWC3_TRB_CTRL_IOC
				| DWC3_TRB_CTRL_LST);

	if (chain)
		return 0;

	memset(&params, 0, sizeof(params));
	params.param0 = upper_32_bits(dwc->ep0_trb_addr);
	params.param1 = lower_32_bits(dwc->ep0_trb_addr);

	trace_dwc3_prepare_trb(dep, trb);

	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number,
			DWC3_DEPCMD_STARTTRANSFER, &params);
	if (ret < 0) {
		dwc3_trace(trace_dwc3_ep0, "%s STARTTRANSFER failed",
				dep->name);
		return ret;
	}

	dep->flags |= DWC3_EP_BUSY;
	dep->resource_index = dwc3_gadget_ep_get_transfer_index(dwc,
			dep->number);

	dwc->ep0_next_event = DWC3_EP0_COMPLETE;

	return 0;
}