C++ MUSB_HST_MODE函数代码示例

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本文整理汇总了C++中MUSB_HST_MODE函数的典型用法代码示例。如果您正苦于以下问题：C++ MUSB_HST_MODE函数的具体用法？C++ MUSB_HST_MODE怎么用？C++ MUSB_HST_MODE使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了MUSB_HST_MODE函数的14个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: m2s_usb_vbus_set

static void m2s_usb_vbus_set(struct musb *musb, int is_on)
{
	u8	devctl;

	/* HDRC controls CPEN, but beware current surges during device
	 * connect.  They can trigger transient overcurrent conditions
	 * that must be ignored.
	 */
	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);

	if (is_on) {
		musb->is_active = 1;
		musb->xceiv->default_a = 1;
		musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
		devctl |= MUSB_DEVCTL_SESSION;

		MUSB_HST_MODE(musb);
	} else {
		musb->is_active = 0;

		/* NOTE:  we're skipping A_WAIT_VFALL -> A_IDLE and
		 * jumping right to B_IDLE...
		 */
		musb->xceiv->default_a = 0;
		musb->xceiv->state = OTG_STATE_B_IDLE;
		devctl &= ~MUSB_DEVCTL_SESSION;

		MUSB_DEV_MODE(musb);
	}
	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);

	DBG(1, "VBUS %s, devctl %02x\n",
		otg_state_string(musb),
		musb_readb(musb->mregs, MUSB_DEVCTL));
}

开发者ID:AdrianHuang，项目名称:uclinux-robutest，代码行数:35，代码来源:m2s.c

示例2: ux500_musb_set_vbus

static void ux500_musb_set_vbus(struct musb *musb, int is_on)
{
	u8            devctl;
	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
	/* HDRC controls CPEN, but beware current surges during device
	 * connect.  They can trigger transient overcurrent conditions
	 * that must be ignored.
	 */

	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);

	if (is_on) {
		if (musb->xceiv->otg->state == OTG_STATE_A_IDLE) {
			/* start the session */
			devctl |= MUSB_DEVCTL_SESSION;
			musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
			/*
			 * Wait for the musb to set as A device to enable the
			 * VBUS
			 */
			while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {

				if (time_after(jiffies, timeout)) {
					dev_err(musb->controller,
					"configured as A device timeout");
					break;
				}
			}

		} else {
			musb->is_active = 1;
			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
			devctl |= MUSB_DEVCTL_SESSION;
			MUSB_HST_MODE(musb);
		}
	} else {
		musb->is_active = 0;

		/* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and jumping
		 * right to B_IDLE...
		 */
		devctl &= ~MUSB_DEVCTL_SESSION;
		MUSB_DEV_MODE(musb);
	}
	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);

	/*
	 * Devctl values will be updated after vbus goes below
	 * session_valid. The time taken depends on the capacitance
	 * on VBUS line. The max discharge time can be upto 1 sec
	 * as per the spec. Typically on our platform, it is 200ms
	 */
	if (!is_on)
		mdelay(200);

	dev_dbg(musb->controller, "VBUS %s, devctl %02x\n",
		usb_otg_state_string(musb->xceiv->otg->state),
		musb_readb(musb->mregs, MUSB_DEVCTL));
}

开发者ID:AlexShiLucky，项目名称:linux，代码行数:59，代码来源:ux500.c

示例3: otg_timer

static void otg_timer(unsigned long _musb)
{
	struct musb *musb = (void *)_musb;
	void __iomem *mregs = musb->mregs;
	struct device *dev = musb->controller;
	struct platform_device *pdev = to_platform_device(dev);
	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
	const struct dsps_musb_wrapper *wrp = glue->wrp;
	u8 devctl;
	unsigned long flags;

	/*
	 * We poll because DSPS IP's won't expose several OTG-critical
	 * status change events (from the transceiver) otherwise.
	 */
	devctl = dsps_readb(mregs, MUSB_DEVCTL);
	dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
				otg_state_string(musb->xceiv->state));

	spin_lock_irqsave(&musb->lock, flags);
	switch (musb->xceiv->state) {
	case OTG_STATE_A_WAIT_BCON:
		/*
		 * We need to avoid stopping the session in host mode,
		 * otherwise we don't see any newly connected devices
		 */
		if (!is_host_active(musb)) {
			devctl &= ~MUSB_DEVCTL_SESSION;
			dsps_writeb(musb->mregs, MUSB_DEVCTL, devctl);
		}

		devctl = dsps_readb(musb->mregs, MUSB_DEVCTL);
		if (devctl & MUSB_DEVCTL_BDEVICE) {
			musb->xceiv->state = OTG_STATE_B_IDLE;
			MUSB_DEV_MODE(musb);
		} else {
			musb->xceiv->state = OTG_STATE_A_IDLE;
			MUSB_HST_MODE(musb);
		}
		break;
	case OTG_STATE_A_WAIT_VFALL:
		musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
		dsps_writel(musb->ctrl_base, wrp->coreintr_set,
			    MUSB_INTR_VBUSERROR << wrp->usb_shift);
		break;
	case OTG_STATE_B_IDLE:
		devctl = dsps_readb(mregs, MUSB_DEVCTL);
		if (devctl & MUSB_DEVCTL_BDEVICE)
			mod_timer(&glue->timer[pdev->id],
					jiffies + wrp->poll_seconds * HZ);
		else
			musb->xceiv->state = OTG_STATE_A_IDLE;
		break;
	default:
		break;
	}
	spin_unlock_irqrestore(&musb->lock, flags);
}

开发者ID:SynerconTechnologies，项目名称:FLA-Kernel，代码行数:58，代码来源:musb_dsps.c

示例4: dsps_check_status

/* Caller must take musb->lock */
static int dsps_check_status(struct musb *musb, void *unused)
{
	void __iomem *mregs = musb->mregs;
	struct device *dev = musb->controller;
	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
	const struct dsps_musb_wrapper *wrp = glue->wrp;
	u8 devctl;
	int skip_session = 0;

	if (glue->vbus_irq)
		del_timer(&glue->timer);

	/*
	 * We poll because DSPS IP's won't expose several OTG-critical
	 * status change events (from the transceiver) otherwise.
	 */
	devctl = musb_readb(mregs, MUSB_DEVCTL);
	dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
				usb_otg_state_string(musb->xceiv->otg->state));

	switch (musb->xceiv->otg->state) {
	case OTG_STATE_A_WAIT_VRISE:
		dsps_mod_timer_optional(glue);
		break;
	case OTG_STATE_A_WAIT_BCON:
		musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
		skip_session = 1;
		/* fall */

	case OTG_STATE_A_IDLE:
	case OTG_STATE_B_IDLE:
		if (!glue->vbus_irq) {
			if (devctl & MUSB_DEVCTL_BDEVICE) {
				musb->xceiv->otg->state = OTG_STATE_B_IDLE;
				MUSB_DEV_MODE(musb);
			} else {
				musb->xceiv->otg->state = OTG_STATE_A_IDLE;
				MUSB_HST_MODE(musb);
			}
			if (!(devctl & MUSB_DEVCTL_SESSION) && !skip_session)
				musb_writeb(mregs, MUSB_DEVCTL,
					    MUSB_DEVCTL_SESSION);
		}
		dsps_mod_timer_optional(glue);
		break;
	case OTG_STATE_A_WAIT_VFALL:
		musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
		musb_writel(musb->ctrl_base, wrp->coreintr_set,
			    MUSB_INTR_VBUSERROR << wrp->usb_shift);
		break;
	default:
		break;
	}

	return 0;
}

开发者ID:koll1009，项目名称:linux，代码行数:57，代码来源:musb_dsps.c

示例5: omap2430_musb_set_vbus

static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
{
	struct usb_otg	*otg = musb->xceiv->otg;
	u8		devctl;
	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
	int ret = 1;

	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);

	if (is_on) {
		if (musb->xceiv->state == OTG_STATE_A_IDLE) {
			
			devctl |= MUSB_DEVCTL_SESSION;
			musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
			while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {

				cpu_relax();

				if (time_after(jiffies, timeout)) {
					dev_err(musb->controller,
					"configured as A device timeout");
					ret = -EINVAL;
					break;
				}
			}

			if (ret && otg->set_vbus)
				otg_set_vbus(otg, 1);
		} else {
			musb->is_active = 1;
			otg->default_a = 1;
			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
			devctl |= MUSB_DEVCTL_SESSION;
			MUSB_HST_MODE(musb);
		}
	} else {
		musb->is_active = 0;


		otg->default_a = 0;
		musb->xceiv->state = OTG_STATE_B_IDLE;
		devctl &= ~MUSB_DEVCTL_SESSION;

		MUSB_DEV_MODE(musb);
	}
	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);

	dev_dbg(musb->controller, "VBUS %s, devctl %02x "
		 "\n",
		otg_state_string(musb->xceiv->state),
		musb_readb(musb->mregs, MUSB_DEVCTL));
}

开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:52，代码来源:omap2430.c

示例6: otg_timer

static void otg_timer(unsigned long _musb)
{
	struct musb		*musb = (void *)_musb;
	void __iomem		*mregs = musb->mregs;
	u8			devctl;
	unsigned long		flags;

	/*
	 * We poll because AM35x's won't expose several OTG-critical
	 * status change events (from the transceiver) otherwise.
	 */
	devctl = musb_readb(mregs, MUSB_DEVCTL);
	dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
		otg_state_string(musb->xceiv->state));

	spin_lock_irqsave(&musb->lock, flags);
	switch (musb->xceiv->state) {
	case OTG_STATE_A_WAIT_BCON:
		devctl &= ~MUSB_DEVCTL_SESSION;
		musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);

		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
		if (devctl & MUSB_DEVCTL_BDEVICE) {
			musb->xceiv->state = OTG_STATE_B_IDLE;
			MUSB_DEV_MODE(musb);
		} else {
			musb->xceiv->state = OTG_STATE_A_IDLE;
			MUSB_HST_MODE(musb);
		}
		break;
	case OTG_STATE_A_WAIT_VFALL:
		musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
		musb_writel(musb->ctrl_base, CORE_INTR_SRC_SET_REG,
			    MUSB_INTR_VBUSERROR << AM35X_INTR_USB_SHIFT);
		break;
	case OTG_STATE_B_IDLE:
		if (!is_peripheral_enabled(musb))
			break;

		devctl = musb_readb(mregs, MUSB_DEVCTL);
		if (devctl & MUSB_DEVCTL_BDEVICE)
			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
		else
			musb->xceiv->state = OTG_STATE_A_IDLE;
		break;
	default:
		break;
	}
	spin_unlock_irqrestore(&musb->lock, flags);
}

开发者ID:pradeep2481，项目名称:pia-linux-kernel，代码行数:50，代码来源:am35x.c

示例7: musb_do_idle

static void musb_do_idle(unsigned long _musb)
{
	struct musb	*musb = (void *)_musb;
	unsigned long	flags;
	u8	power;
	u8	devctl;

	spin_lock_irqsave(&musb->lock, flags);

	switch (musb->xceiv->state) {
	case OTG_STATE_A_WAIT_BCON:

		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
		if (devctl & MUSB_DEVCTL_BDEVICE) {
			musb->xceiv->state = OTG_STATE_B_IDLE;
			MUSB_DEV_MODE(musb);
		} else {
			musb->xceiv->state = OTG_STATE_A_IDLE;
			MUSB_HST_MODE(musb);
		}
		break;
	case OTG_STATE_A_SUSPEND:
		
		if (musb->port1_status & MUSB_PORT_STAT_RESUME) {
			power = musb_readb(musb->mregs, MUSB_POWER);
			power &= ~MUSB_POWER_RESUME;
			dev_dbg(musb->controller, "root port resume stopped, power %02x\n", power);
			musb_writeb(musb->mregs, MUSB_POWER, power);
			musb->is_active = 1;
			musb->port1_status &= ~(USB_PORT_STAT_SUSPEND
						| MUSB_PORT_STAT_RESUME);
			musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
			usb_hcd_poll_rh_status(musb_to_hcd(musb));
			
			musb->xceiv->state = OTG_STATE_A_HOST;
		}
		break;
	case OTG_STATE_A_HOST:
		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
		if (devctl &  MUSB_DEVCTL_BDEVICE)
			musb->xceiv->state = OTG_STATE_B_IDLE;
		else
			musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
	default:
		break;
	}
	spin_unlock_irqrestore(&musb->lock, flags);
}

开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:48，代码来源:omap2430.c

示例8: da8xx_musb_interrupt

static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
{
	struct musb		*musb = hci;
	void __iomem		*reg_base = musb->ctrl_base;
	struct usb_otg		*otg = musb->xceiv->otg;
	unsigned long		flags;
	irqreturn_t		ret = IRQ_NONE;
	u32			status;

	spin_lock_irqsave(&musb->lock, flags);

	/*
	 * NOTE: DA8XX shadows the Mentor IRQs.  Don't manage them through
	 * the Mentor registers (except for setup), use the TI ones and EOI.
	 */

	/* Acknowledge and handle non-CPPI interrupts */
	status = musb_readl(reg_base, DA8XX_USB_INTR_SRC_MASKED_REG);
	if (!status)
		goto eoi;

	musb_writel(reg_base, DA8XX_USB_INTR_SRC_CLEAR_REG, status);
	dev_dbg(musb->controller, "USB IRQ %08x\n", status);

	musb->int_rx = (status & DA8XX_INTR_RX_MASK) >> DA8XX_INTR_RX_SHIFT;
	musb->int_tx = (status & DA8XX_INTR_TX_MASK) >> DA8XX_INTR_TX_SHIFT;
	musb->int_usb = (status & DA8XX_INTR_USB_MASK) >> DA8XX_INTR_USB_SHIFT;

	/*
	 * DRVVBUS IRQs are the only proxy we have (a very poor one!) for
	 * DA8xx's missing ID change IRQ.  We need an ID change IRQ to
	 * switch appropriately between halves of the OTG state machine.
	 * Managing DEVCTL.Session per Mentor docs requires that we know its
	 * value but DEVCTL.BDevice is invalid without DEVCTL.Session set.
	 * Also, DRVVBUS pulses for SRP (but not at 5 V)...
	 */
	if (status & (DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT)) {
		int drvvbus = musb_readl(reg_base, DA8XX_USB_STAT_REG);
		void __iomem *mregs = musb->mregs;
		u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
		int err;

		err = musb->int_usb & MUSB_INTR_VBUSERROR;
		if (err) {
			/*
			 * The Mentor core doesn't debounce VBUS as needed
			 * to cope with device connect current spikes. This
			 * means it's not uncommon for bus-powered devices
			 * to get VBUS errors during enumeration.
			 *
			 * This is a workaround, but newer RTL from Mentor
			 * seems to allow a better one: "re"-starting sessions
			 * without waiting for VBUS to stop registering in
			 * devctl.
			 */
			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
			WARNING("VBUS error workaround (delay coming)\n");
		} else if (drvvbus) {
			MUSB_HST_MODE(musb);
			otg->default_a = 1;
			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
			del_timer(&otg_workaround);
		} else {
			musb->is_active = 0;
			MUSB_DEV_MODE(musb);
			otg->default_a = 0;
			musb->xceiv->otg->state = OTG_STATE_B_IDLE;
			portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
		}

		dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
				drvvbus ? "on" : "off",
				usb_otg_state_string(musb->xceiv->otg->state),
				err ? " ERROR" : "",
				devctl);
		ret = IRQ_HANDLED;
	}

	if (musb->int_tx || musb->int_rx || musb->int_usb)
		ret |= musb_interrupt(musb);

 eoi:
	/* EOI needs to be written for the IRQ to be re-asserted. */
	if (ret == IRQ_HANDLED || status)
		musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0);

	/* Poll for ID change */
	if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);

	spin_unlock_irqrestore(&musb->lock, flags);

	return ret;
}

开发者ID:forgivemyheart，项目名称:linux，代码行数:97，代码来源:da8xx.c

示例9: otg_timer

static void otg_timer(unsigned long _musb)
{
	struct musb		*musb = (void *)_musb;
	void __iomem		*mregs = musb->mregs;
	u8			devctl;
	unsigned long		flags;

	/*
	 * We poll because DaVinci's won't expose several OTG-critical
	 * status change events (from the transceiver) otherwise.
	 */
	devctl = musb_readb(mregs, MUSB_DEVCTL);
	dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
		usb_otg_state_string(musb->xceiv->otg->state));

	spin_lock_irqsave(&musb->lock, flags);
	switch (musb->xceiv->otg->state) {
	case OTG_STATE_A_WAIT_BCON:
		devctl &= ~MUSB_DEVCTL_SESSION;
		musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);

		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
		if (devctl & MUSB_DEVCTL_BDEVICE) {
			musb->xceiv->otg->state = OTG_STATE_B_IDLE;
			MUSB_DEV_MODE(musb);
		} else {
			musb->xceiv->otg->state = OTG_STATE_A_IDLE;
			MUSB_HST_MODE(musb);
		}
		break;
	case OTG_STATE_A_WAIT_VFALL:
		/*
		 * Wait till VBUS falls below SessionEnd (~0.2 V); the 1.3
		 * RTL seems to mis-handle session "start" otherwise (or in
		 * our case "recover"), in routine "VBUS was valid by the time
		 * VBUSERR got reported during enumeration" cases.
		 */
		if (devctl & MUSB_DEVCTL_VBUS) {
			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
			break;
		}
		musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
		musb_writel(musb->ctrl_base, DA8XX_USB_INTR_SRC_SET_REG,
			    MUSB_INTR_VBUSERROR << DA8XX_INTR_USB_SHIFT);
		break;
	case OTG_STATE_B_IDLE:
		/*
		 * There's no ID-changed IRQ, so we have no good way to tell
		 * when to switch to the A-Default state machine (by setting
		 * the DEVCTL.Session bit).
		 *
		 * Workaround:  whenever we're in B_IDLE, try setting the
		 * session flag every few seconds.  If it works, ID was
		 * grounded and we're now in the A-Default state machine.
		 *
		 * NOTE: setting the session flag is _supposed_ to trigger
		 * SRP but clearly it doesn't.
		 */
		musb_writeb(mregs, MUSB_DEVCTL, devctl | MUSB_DEVCTL_SESSION);
		devctl = musb_readb(mregs, MUSB_DEVCTL);
		if (devctl & MUSB_DEVCTL_BDEVICE)
			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
		else
			musb->xceiv->otg->state = OTG_STATE_A_IDLE;
		break;
	default:
		break;
	}
	spin_unlock_irqrestore(&musb->lock, flags);
}

开发者ID:forgivemyheart，项目名称:linux，代码行数:70，代码来源:da8xx.c

示例10: dsps_interrupt

static irqreturn_t dsps_interrupt(int irq, void *hci)
{
	struct musb  *musb = hci;
	void __iomem *reg_base = musb->ctrl_base;
	struct device *dev = musb->controller;
	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
	const struct dsps_musb_wrapper *wrp = glue->wrp;
	unsigned long flags;
	irqreturn_t ret = IRQ_NONE;
	u32 epintr, usbintr;

	spin_lock_irqsave(&musb->lock, flags);

	/* Get endpoint interrupts */
	epintr = dsps_readl(reg_base, wrp->epintr_status);
	musb->int_rx = (epintr & wrp->rxep_bitmap) >> wrp->rxep_shift;
	musb->int_tx = (epintr & wrp->txep_bitmap) >> wrp->txep_shift;

	if (epintr)
		dsps_writel(reg_base, wrp->epintr_status, epintr);

	/* Get usb core interrupts */
	usbintr = dsps_readl(reg_base, wrp->coreintr_status);
	if (!usbintr && !epintr)
		goto out;

	musb->int_usb =	(usbintr & wrp->usb_bitmap) >> wrp->usb_shift;
	if (usbintr)
		dsps_writel(reg_base, wrp->coreintr_status, usbintr);

	dev_dbg(musb->controller, "usbintr (%x) epintr(%x)\n",
			usbintr, epintr);
	/*
	 * DRVVBUS IRQs are the only proxy we have (a very poor one!) for
	 * DSPS IP's missing ID change IRQ.  We need an ID change IRQ to
	 * switch appropriately between halves of the OTG state machine.
	 * Managing DEVCTL.SESSION per Mentor docs requires that we know its
	 * value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set.
	 * Also, DRVVBUS pulses for SRP (but not at 5V) ...
	 */
	if (is_host_active(musb) && usbintr & MUSB_INTR_BABBLE)
		pr_info("CAUTION: musb: Babble Interrupt Occurred\n");

	if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) {
		int drvvbus = dsps_readl(reg_base, wrp->status);
		void __iomem *mregs = musb->mregs;
		u8 devctl = dsps_readb(mregs, MUSB_DEVCTL);
		int err;

		err = musb->int_usb & MUSB_INTR_VBUSERROR;
		if (err) {
			/*
			 * The Mentor core doesn't debounce VBUS as needed
			 * to cope with device connect current spikes. This
			 * means it's not uncommon for bus-powered devices
			 * to get VBUS errors during enumeration.
			 *
			 * This is a workaround, but newer RTL from Mentor
			 * seems to allow a better one: "re"-starting sessions
			 * without waiting for VBUS to stop registering in
			 * devctl.
			 */
			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
			musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
			mod_timer(&glue->timer,
					jiffies + wrp->poll_seconds * HZ);
			WARNING("VBUS error workaround (delay coming)\n");
		} else if (drvvbus) {
			MUSB_HST_MODE(musb);
			musb->xceiv->otg->default_a = 1;
			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
			del_timer(&glue->timer);
		} else {
			musb->is_active = 0;
			MUSB_DEV_MODE(musb);
			musb->xceiv->otg->default_a = 0;
			musb->xceiv->state = OTG_STATE_B_IDLE;
		}

		/* NOTE: this must complete power-on within 100 ms. */
		dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
				drvvbus ? "on" : "off",
				usb_otg_state_string(musb->xceiv->state),
				err ? " ERROR" : "",
				devctl);
		ret = IRQ_HANDLED;
	}

	if (musb->int_tx || musb->int_rx || musb->int_usb)
		ret |= musb_interrupt(musb);

	/* Poll for ID change */
	if (musb->xceiv->state == OTG_STATE_B_IDLE)
		mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
out:
	spin_unlock_irqrestore(&musb->lock, flags);

	return ret;
}

开发者ID:OliverGesch，项目名称:linux，代码行数:99，代码来源:musb_dsps.c

示例11: musb_id_pin_work

static void musb_id_pin_work(struct work_struct *data)
{
    u8 devctl = 0;
    unsigned long flags;

    spin_lock_irqsave(&mtk_musb->lock, flags);
    musb_generic_disable(mtk_musb);
    spin_unlock_irqrestore(&mtk_musb->lock, flags);

	down(&mtk_musb->musb_lock);
	DBG(0, "work start, is_host=%d\n", mtk_musb->is_host);
	if(mtk_musb->in_ipo_off) {
		DBG(0, "do nothing due to in_ipo_off\n");
		goto out;
	}

	mtk_musb ->is_host = musb_is_host();
	DBG(0,"musb is as %s\n",mtk_musb->is_host?"host":"device");
	switch_set_state((struct switch_dev *)&otg_state, mtk_musb->is_host);

	if (mtk_musb->is_host) {
		//setup fifo for host mode
		ep_config_from_table_for_host(mtk_musb);
		wake_lock(&mtk_musb->usb_lock);
		musb_platform_set_vbus(mtk_musb, 1);

        /* for no VBUS sensing IP*/
        #if 1
		/* wait VBUS ready */
		msleep(100);
		/* clear session*/
		devctl = musb_readb(mtk_musb->mregs,MUSB_DEVCTL);
		musb_writeb(mtk_musb->mregs, MUSB_DEVCTL, (devctl&(~MUSB_DEVCTL_SESSION)));
		/* USB MAC OFF*/
		/* VBUSVALID=0, AVALID=0, BVALID=0, SESSEND=1, IDDIG=X */
		USBPHY_SET8(0x6c, 0x10);
		USBPHY_CLR8(0x6c, 0x2e);
		USBPHY_SET8(0x6d, 0x3e);
		DBG(0,"force PHY to idle, 0x6d=%x, 0x6c=%x\n",USBPHY_READ8(0x6d), USBPHY_READ8(0x6c));
		/* wait */
		msleep(5);
		/* restart session */
		devctl = musb_readb(mtk_musb->mregs,MUSB_DEVCTL);
		musb_writeb(mtk_musb->mregs, MUSB_DEVCTL, (devctl| MUSB_DEVCTL_SESSION));
		/* USB MAC ONand Host Mode*/
		/* VBUSVALID=1, AVALID=1, BVALID=1, SESSEND=0, IDDIG=0 */
		USBPHY_CLR8(0x6c, 0x10);
		USBPHY_SET8(0x6c, 0x2c);
		USBPHY_SET8(0x6d, 0x3e);
		DBG(0,"force PHY to host mode, 0x6d=%x, 0x6c=%x\n",USBPHY_READ8(0x6d), USBPHY_READ8(0x6c));
        #endif

		musb_start(mtk_musb);
		MUSB_HST_MODE(mtk_musb);
		switch_int_to_device(mtk_musb);
	} else {
		DBG(0,"devctl is %x\n",musb_readb(mtk_musb->mregs,MUSB_DEVCTL));
		musb_writeb(mtk_musb->mregs,MUSB_DEVCTL,0);
		if (wake_lock_active(&mtk_musb->usb_lock))
			wake_unlock(&mtk_musb->usb_lock);
		musb_platform_set_vbus(mtk_musb, 0);

        /* for no VBUS sensing IP */
        #if 1
        /* USB MAC OFF*/
		/* VBUSVALID=0, AVALID=0, BVALID=0, SESSEND=1, IDDIG=X */
		USBPHY_SET8(0x6c, 0x10);
		USBPHY_CLR8(0x6c, 0x2e);
		USBPHY_SET8(0x6d, 0x3e);
		DBG(0,"force PHY to idle, 0x6d=%x, 0x6c=%x\n", USBPHY_READ8(0x6d), USBPHY_READ8(0x6c));
        #endif

		musb_stop(mtk_musb);
		//ALPS00849138
		mtk_musb->xceiv->state =  OTG_STATE_B_IDLE;
		MUSB_DEV_MODE(mtk_musb);
		switch_int_to_host(mtk_musb);
	}
out:
	DBG(0, "work end, is_host=%d\n", mtk_musb->is_host);
	up(&mtk_musb->musb_lock);

}

开发者ID:dimsink1，项目名称:KK_huawei_y511，代码行数:83，代码来源:usb20_host.c

示例12: davinci_musb_interrupt

static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
{
	unsigned long	flags;
	irqreturn_t	retval = IRQ_NONE;
	struct musb	*musb = __hci;
	struct usb_otg	*otg = musb->xceiv->otg;
	void __iomem	*tibase = musb->ctrl_base;
	struct cppi	*cppi;
	u32		tmp;

	spin_lock_irqsave(&musb->lock, flags);


	cppi = container_of(musb->dma_controller, struct cppi, controller);
	if (is_cppi_enabled() && musb->dma_controller && !cppi->irq)
		retval = cppi_interrupt(irq, __hci);

	
	tmp = musb_readl(tibase, DAVINCI_USB_INT_SRC_MASKED_REG);
	musb_writel(tibase, DAVINCI_USB_INT_SRC_CLR_REG, tmp);
	dev_dbg(musb->controller, "IRQ %08x\n", tmp);

	musb->int_rx = (tmp & DAVINCI_USB_RXINT_MASK)
			>> DAVINCI_USB_RXINT_SHIFT;
	musb->int_tx = (tmp & DAVINCI_USB_TXINT_MASK)
			>> DAVINCI_USB_TXINT_SHIFT;
	musb->int_usb = (tmp & DAVINCI_USB_USBINT_MASK)
			>> DAVINCI_USB_USBINT_SHIFT;

	if (tmp & (DAVINCI_INTR_DRVVBUS << DAVINCI_USB_USBINT_SHIFT)) {
		int	drvvbus = musb_readl(tibase, DAVINCI_USB_STAT_REG);
		void __iomem *mregs = musb->mregs;
		u8	devctl = musb_readb(mregs, MUSB_DEVCTL);
		int	err = musb->int_usb & MUSB_INTR_VBUSERROR;

		err = is_host_enabled(musb)
				&& (musb->int_usb & MUSB_INTR_VBUSERROR);
		if (err) {
			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
			musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
			WARNING("VBUS error workaround (delay coming)\n");
		} else if (is_host_enabled(musb) && drvvbus) {
			MUSB_HST_MODE(musb);
			otg->default_a = 1;
			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
			del_timer(&otg_workaround);
		} else {
			musb->is_active = 0;
			MUSB_DEV_MODE(musb);
			otg->default_a = 0;
			musb->xceiv->state = OTG_STATE_B_IDLE;
			portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
		}

		davinci_musb_source_power(musb, drvvbus, 0);
		dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
				drvvbus ? "on" : "off",
				otg_state_string(musb->xceiv->state),
				err ? " ERROR" : "",
				devctl);
		retval = IRQ_HANDLED;
	}

	if (musb->int_tx || musb->int_rx || musb->int_usb)
		retval |= musb_interrupt(musb);

	/* irq stays asserted until EOI is written */
	musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);

	
	if (is_otg_enabled(musb)
			&& musb->xceiv->state == OTG_STATE_B_IDLE)
		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);

	spin_unlock_irqrestore(&musb->lock, flags);

	return retval;
}

开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:80，代码来源:davinci.c

示例13: dsps_interrupt

static irqreturn_t dsps_interrupt(int irq, void *hci)
{
	struct musb  *musb = hci;
	void __iomem *reg_base = musb->ctrl_base;
	struct device *dev = musb->controller;
	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
	const struct dsps_musb_wrapper *wrp = glue->wrp;
	unsigned long flags;
	irqreturn_t ret = IRQ_NONE;
	u32 epintr, usbintr;

	spin_lock_irqsave(&musb->lock, flags);

	/* Get endpoint interrupts */
	epintr = musb_readl(reg_base, wrp->epintr_status);
	musb->int_rx = (epintr & wrp->rxep_bitmap) >> wrp->rxep_shift;
	musb->int_tx = (epintr & wrp->txep_bitmap) >> wrp->txep_shift;

	if (epintr)
		musb_writel(reg_base, wrp->epintr_status, epintr);

	/* Get usb core interrupts */
	usbintr = musb_readl(reg_base, wrp->coreintr_status);
	if (!usbintr && !epintr)
		goto out;

	musb->int_usb =	(usbintr & wrp->usb_bitmap) >> wrp->usb_shift;
	if (usbintr)
		musb_writel(reg_base, wrp->coreintr_status, usbintr);

	dev_dbg(musb->controller, "usbintr (%x) epintr(%x)\n",
			usbintr, epintr);

	if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) {
		int drvvbus = musb_readl(reg_base, wrp->status);
		void __iomem *mregs = musb->mregs;
		u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
		int err;

		err = musb->int_usb & MUSB_INTR_VBUSERROR;
		if (err) {
			/*
			 * The Mentor core doesn't debounce VBUS as needed
			 * to cope with device connect current spikes. This
			 * means it's not uncommon for bus-powered devices
			 * to get VBUS errors during enumeration.
			 *
			 * This is a workaround, but newer RTL from Mentor
			 * seems to allow a better one: "re"-starting sessions
			 * without waiting for VBUS to stop registering in
			 * devctl.
			 */
			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
			dsps_mod_timer_optional(glue);
			WARNING("VBUS error workaround (delay coming)\n");
		} else if (drvvbus) {
			MUSB_HST_MODE(musb);
			musb->xceiv->otg->default_a = 1;
			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
			dsps_mod_timer_optional(glue);
		} else {
			musb->is_active = 0;
			MUSB_DEV_MODE(musb);
			musb->xceiv->otg->default_a = 0;
			musb->xceiv->otg->state = OTG_STATE_B_IDLE;
		}

		/* NOTE: this must complete power-on within 100 ms. */
		dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
				drvvbus ? "on" : "off",
				usb_otg_state_string(musb->xceiv->otg->state),
				err ? " ERROR" : "",
				devctl);
		ret = IRQ_HANDLED;
	}

	if (musb->int_tx || musb->int_rx || musb->int_usb)
		ret |= musb_interrupt(musb);

	/* Poll for ID change and connect */
	switch (musb->xceiv->otg->state) {
	case OTG_STATE_B_IDLE:
	case OTG_STATE_A_WAIT_BCON:
		dsps_mod_timer_optional(glue);
		break;
	default:
		break;
	}

out:
	spin_unlock_irqrestore(&musb->lock, flags);

	return ret;
}

开发者ID:the-snowwhite，项目名称:linux-socfpga，代码行数:95，代码来源:musb_dsps.c

示例14: davinci_musb_interrupt

static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
{
	unsigned long	flags;
	irqreturn_t	retval = IRQ_NONE;
	struct musb	*musb = __hci;
	struct usb_otg	*otg = musb->xceiv->otg;
	void __iomem	*tibase = musb->ctrl_base;
	struct cppi	*cppi;
	u32		tmp;

	spin_lock_irqsave(&musb->lock, flags);

	/* NOTE: DaVinci shadows the Mentor IRQs.  Don't manage them through
	 * the Mentor registers (except for setup), use the TI ones and EOI.
	 *
	 * Docs describe irq "vector" registers associated with the CPPI and
	 * USB EOI registers.  These hold a bitmask corresponding to the
	 * current IRQ, not an irq handler address.  Would using those bits
	 * resolve some of the races observed in this dispatch code??
	 */

	/* CPPI interrupts share the same IRQ line, but have their own
	 * mask, state, "vector", and EOI registers.
	 */
	cppi = container_of(musb->dma_controller, struct cppi, controller);
	if (is_cppi_enabled() && musb->dma_controller && !cppi->irq)
		retval = cppi_interrupt(irq, __hci);

	/* ack and handle non-CPPI interrupts */
	tmp = musb_readl(tibase, DAVINCI_USB_INT_SRC_MASKED_REG);
	musb_writel(tibase, DAVINCI_USB_INT_SRC_CLR_REG, tmp);
	dev_dbg(musb->controller, "IRQ %08x\n", tmp);

	musb->int_rx = (tmp & DAVINCI_USB_RXINT_MASK)
			>> DAVINCI_USB_RXINT_SHIFT;
	musb->int_tx = (tmp & DAVINCI_USB_TXINT_MASK)
			>> DAVINCI_USB_TXINT_SHIFT;
	musb->int_usb = (tmp & DAVINCI_USB_USBINT_MASK)
			>> DAVINCI_USB_USBINT_SHIFT;

	/* DRVVBUS irqs are the only proxy we have (a very poor one!) for
	 * DaVinci's missing ID change IRQ.  We need an ID change IRQ to
	 * switch appropriately between halves of the OTG state machine.
	 * Managing DEVCTL.SESSION per Mentor docs requires we know its
	 * value, but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set.
	 * Also, DRVVBUS pulses for SRP (but not at 5V) ...
	 */
	if (tmp & (DAVINCI_INTR_DRVVBUS << DAVINCI_USB_USBINT_SHIFT)) {
		int	drvvbus = musb_readl(tibase, DAVINCI_USB_STAT_REG);
		void __iomem *mregs = musb->mregs;
		u8	devctl = musb_readb(mregs, MUSB_DEVCTL);
		int	err = musb->int_usb & MUSB_INTR_VBUSERROR;

		err = musb->int_usb & MUSB_INTR_VBUSERROR;
		if (err) {
			/* The Mentor core doesn't debounce VBUS as needed
			 * to cope with device connect current spikes. This
			 * means it's not uncommon for bus-powered devices
			 * to get VBUS errors during enumeration.
			 *
			 * This is a workaround, but newer RTL from Mentor
			 * seems to allow a better one: "re"starting sessions
			 * without waiting (on EVM, a **long** time) for VBUS
			 * to stop registering in devctl.
			 */
			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
			musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
			WARNING("VBUS error workaround (delay coming)\n");
		} else if (drvvbus) {
			MUSB_HST_MODE(musb);
			otg->default_a = 1;
			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
			del_timer(&otg_workaround);
		} else {
			musb->is_active = 0;
			MUSB_DEV_MODE(musb);
			otg->default_a = 0;
			musb->xceiv->state = OTG_STATE_B_IDLE;
			portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
		}

		/* NOTE:  this must complete poweron within 100 msec
		 * (OTG_TIME_A_WAIT_VRISE) but we don't check for that.
		 */
		davinci_musb_source_power(musb, drvvbus, 0);
		dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
				drvvbus ? "on" : "off",
				usb_otg_state_string(musb->xceiv->state),
				err ? " ERROR" : "",
				devctl);
		retval = IRQ_HANDLED;
	}

	if (musb->int_tx || musb->int_rx || musb->int_usb)
		retval |= musb_interrupt(musb);

	/* irq stays asserted until EOI is written */
	musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);
//.........这里部分代码省略.........

开发者ID:AnadoluPanteri，项目名称:kernel-plus-harmattan，代码行数:101，代码来源:davinci.c

注：本文中的MUSB_HST_MODE函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ MUTEX_DESTROY函数代码示例发布时间：2022-05-30

C++ MUSB_DEV_MODE函数代码示例发布时间：2022-05-30

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C++ MUSB_HST_MODE函数代码示例

示例1: m2s_usb_vbus_set

示例2: ux500_musb_set_vbus

示例3: otg_timer

示例4: dsps_check_status

示例5: omap2430_musb_set_vbus

示例6: otg_timer

示例7: musb_do_idle

示例8: da8xx_musb_interrupt

示例9: otg_timer

示例10: dsps_interrupt

示例11: musb_id_pin_work

示例12: davinci_musb_interrupt

示例13: dsps_interrupt

示例14: davinci_musb_interrupt

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