C++ (Cpp) otg_set_utmi_xcvr示例

示例#1

文件： usb_common.c 项目： SanDisk-Open-Source/wireless-media-drive

int usbotg_init(struct platform_device *pdev)
{
	struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
	struct fsl_xcvr_ops *xops;

	pr_debug("%s: pdev=0x%p  pdata=0x%p\n", __func__, pdev, pdata);

	xops = fsl_usb_get_xcvr(pdata->transceiver);
	if (!xops) {
		printk(KERN_ERR "DR transceiver ops missing\n");
		return -EINVAL;
	}
	pdata->xcvr_ops = xops;
	pdata->xcvr_type = xops->xcvr_type;
	pdata->pdev = pdev;

	if (fsl_check_usbclk() != 0)
		return -EINVAL;
	if (!mxc_otg_used) {
		if (cpu_is_mx50())
			/* Turn on AHB CLK for OTG*/
			USB_CLKONOFF_CTRL &= ~OTG_AHBCLK_OFF;

		pr_debug("%s: grab pins\n", __func__);
		if (pdata->gpio_usb_active && pdata->gpio_usb_active())
			return -EINVAL;

		if (clk_enable(usb_clk)) {
			printk(KERN_ERR "clk_enable(usb_clk) failed\n");
			return -EINVAL;
		}

		if (xops->init)
			xops->init(xops);

		UOG_PORTSC1 = UOG_PORTSC1 & ~PORTSC_PHCD;
		if (xops->xcvr_type == PORTSC_PTS_SERIAL) {
			if (pdata->operating_mode == FSL_USB2_DR_HOST) {
				otg_set_serial_host();
				/* need reset */
				UOG_USBCMD |= UCMD_RESET;
				msleep(100);
			} else if (pdata->operating_mode == FSL_USB2_DR_DEVICE)
				otg_set_serial_peripheral();
			otg_set_serial_xcvr();
		} else if (xops->xcvr_type == PORTSC_PTS_ULPI) {
			otg_set_ulpi_xcvr();
		} else if (xops->xcvr_type == PORTSC_PTS_UTMI) {
			otg_set_utmi_xcvr();
		}
	}

	if (usb_register_remote_wakeup(pdev))
		pr_debug("DR is not a wakeup source.\n");

	mxc_otg_used++;
	pr_debug("%s: success\n", __func__);
	return 0;
}

示例#2

文件： usb_common.c 项目： R0-Developers/YP-R0_Kernel

int usbotg_init(struct platform_device *pdev)
{
	struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
	struct fsl_xcvr_ops *xops;

	pr_debug("%s: pdev=0x%p  pdata=0x%p\n", __func__, pdev, pdata);

	xops = fsl_usb_get_xcvr(pdata->transceiver);
	if (!xops) {
		printk(KERN_ERR "DR transceiver ops missing\n");
		return -EINVAL;
	}
	pdata->xcvr_ops = xops;
	pdata->xcvr_type = xops->xcvr_type;
	pdata->pdev = pdev;

	if (!otg_used) {
		if (fsl_check_usbclk() != 0)
			return -EINVAL;

		pr_debug("%s: grab pins\n", __func__);
		if (pdata->gpio_usb_active())
			return -EINVAL;

		if (clk_enable(usb_clk)) {
			printk(KERN_ERR "clk_enable(usb_clk) failed\n");
			return -EINVAL;
		}

		if (xops->init)
			xops->init(xops);

		UOG_PORTSC1 = UOG_PORTSC1 & ~PORTSC_PHCD;
		if (xops->xcvr_type == PORTSC_PTS_SERIAL) {
			if (pdata->operating_mode == FSL_USB2_DR_HOST) {
				otg_set_serial_host();
				/* need reset */
				UOG_USBCMD |= UCMD_RESET;
				msleep(100);
			} else if (pdata->operating_mode == FSL_USB2_DR_DEVICE)
				otg_set_serial_peripheral();
			otg_set_serial_xcvr();
		} else if (xops->xcvr_type == PORTSC_PTS_ULPI) {
			otg_set_ulpi_xcvr();
		} else if (xops->xcvr_type == PORTSC_PTS_UTMI) {
			otg_set_utmi_xcvr();
			//pdata->usb_clock_for_pm(0);
		}
	}

	otg_used++;
	pr_debug("%s: success\n", __func__);
	return 0;
}