Ejemplos de S3C_UDC_OTG_DOEPDMA en C++ (Cpp)

Ejemplo n.º 1

static int setdma_rx(struct s3c_ep *ep, struct s3c_request *req)
{
	u32 *buf, ctrl;
	u32 length, pktcnt;
	u32 ep_num = ep_index(ep);

	buf = req->req.buf + req->req.actual;
	prefetchw(buf);

	length = req->req.length - req->req.actual;
	dma_cache_maint(buf, length, DMA_FROM_DEVICE);

	if(length == 0)
		pktcnt = 1;
	else
		pktcnt = (length - 1)/(ep->ep.maxpacket) + 1;

	ctrl =  readl(S3C_UDC_OTG_DOEPCTL(ep_num));

	writel(virt_to_phys(buf), S3C_UDC_OTG_DOEPDMA(ep_num));
	writel((pktcnt<<19)|(length<<0), S3C_UDC_OTG_DOEPTSIZ(ep_num));
	writel(DEPCTL_EPENA|DEPCTL_CNAK|ctrl, S3C_UDC_OTG_DOEPCTL(ep_num));

	DEBUG_OUT_EP("%s: EP%d RX DMA start : DOEPDMA = 0x%x, DOEPTSIZ = 0x%x, DOEPCTL = 0x%x\n"
			"\tbuf = 0x%p, pktcnt = %d, xfersize = %d\n",
			__func__, ep_num,
			readl(S3C_UDC_OTG_DOEPDMA(ep_num)),
			readl(S3C_UDC_OTG_DOEPTSIZ(ep_num)),
			readl(S3C_UDC_OTG_DOEPCTL(ep_num)),
			buf, pktcnt, length);
	return 0;

}

Ejemplo n.º 2

Archivo: s3c_udc_otg_xfer_dma.c Proyecto: ShedrockN4/wiliteneo

static int setdma_rx(struct s3c_ep *ep, struct s3c_request *req)
{
	u32 *buf, ctrl;
	u32 length, pktcnt;
	u32 ep_num = ep_index(ep);
	struct s3c_udc *udc = ep->dev;
	struct device *dev = &udc->dev->dev;

	aligned_map_buf(req, ep_is_in(ep));
	buf = req->req.buf + req->req.actual;
	prefetchw(buf);

	length = req->req.length - req->req.actual;

	req->req.dma = dma_map_single(dev, buf,
				length, DMA_FROM_DEVICE);
	req->mapped = 1;

	if (length == 0)
		pktcnt = 1;
	else
		pktcnt = (length - 1)/(ep->ep.maxpacket) + 1;

	ctrl =  __raw_readl(udc->regs + S3C_UDC_OTG_DOEPCTL(ep_num));

	__raw_writel(virt_to_phys(buf),
		udc->regs + S3C_UDC_OTG_DOEPDMA(ep_num));
	__raw_writel((pktcnt<<19) | (length<<0),
		udc->regs + S3C_UDC_OTG_DOEPTSIZ(ep_num));
	__raw_writel(DEPCTL_EPENA | DEPCTL_CNAK | ctrl,
		udc->regs + S3C_UDC_OTG_DOEPCTL(ep_num));

	DEBUG_OUT_EP("%s: EP%d RX DMA start : DOEPDMA = 0x%x,"
			"DOEPTSIZ = 0x%x, DOEPCTL = 0x%x\n"
			"\tbuf = 0x%p, pktcnt = %d, xfersize = %d\n",
			__func__, ep_num,
			__raw_readl(udc->regs + S3C_UDC_OTG_DOEPDMA(ep_num)),
			__raw_readl(udc->regs + S3C_UDC_OTG_DOEPTSIZ(ep_num)),
			__raw_readl(udc->regs + S3C_UDC_OTG_DOEPCTL(ep_num)),
			buf, pktcnt, length);
	return 0;
}

Ejemplo n.º 3

static inline void s3c_udc_pre_setup(void)
{
	u32 ep_ctrl;

	DEBUG_IN_EP("%s : Prepare Setup packets.\n", __func__);

	writel((1 << 19)|sizeof(struct usb_ctrlrequest), S3C_UDC_OTG_DOEPTSIZ(EP0_CON));
	writel(virt_to_phys(&usb_ctrl), S3C_UDC_OTG_DOEPDMA(EP0_CON));

	ep_ctrl = readl(S3C_UDC_OTG_DOEPCTL(EP0_CON));
	writel(ep_ctrl|DEPCTL_EPENA|DEPCTL_CNAK, S3C_UDC_OTG_DOEPCTL(EP0_CON));
}

Ejemplo n.º 4

Archivo: s3c_udc_otg_xfer_dma.c Proyecto: perillamint/tizen-linux-3.0

static inline void s3c_udc_pre_setup(struct s3c_udc *dev)
{
	u32 ep_ctrl;

	DEBUG_IN_EP("%s : Prepare Setup packets.\n", __func__);

	__raw_writel((3<<29) | (1<<19) | sizeof(struct usb_ctrlrequest),
		dev->regs + S3C_UDC_OTG_DOEPTSIZ(EP0_CON));
	__raw_writel(dev->usb_ctrl_dma, dev->regs + S3C_UDC_OTG_DOEPDMA(EP0_CON));

	ep_ctrl = __raw_readl(dev->regs + S3C_UDC_OTG_DOEPCTL(EP0_CON));
	__raw_writel(ep_ctrl|DEPCTL_EPENA|DEPCTL_CNAK,
		dev->regs + S3C_UDC_OTG_DOEPCTL(EP0_CON));
}