static int ohci_hcd_s5p_drv_runtime_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct s5p_ohci_platdata *pdata = pdev->dev.platform_data;
struct s5p_ohci_hcd *s5p_ohci = platform_get_drvdata(pdev);
struct usb_hcd *hcd = s5p_ohci->hcd;
#ifdef CONFIG_USB_EXYNOS_SWITCH
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
#endif
if (dev->power.is_suspended)
return 0;
if (pdata->phy_resume)
pdata->phy_resume(pdev, S5P_USB_PHY_HOST);
/* Mark hardware accessible again as we are out of D3 state by now */
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
#ifdef CONFIG_USB_EXYNOS_SWITCH
if (samsung_board_rev_is_0_0())
ohci_writel (ohci, RH_HS_LPSC, &ohci->regs->roothub.status);
#endif
ohci_finish_controller_resume(hcd);
return 0;
}
static int s5p_ehci_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
#ifdef CONFIG_USB_EXYNOS_SWITCH
struct s5p_ehci_hcd *s5p_ehci = platform_get_drvdata(pdev);
struct usb_hcd *hcd = s5p_ehci->hcd;
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
#endif
if (pdata && pdata->phy_suspend)
pdata->phy_suspend(pdev, S5P_USB_PHY_HOST);
#ifdef CONFIG_USB_EXYNOS_SWITCH
if (samsung_board_rev_is_0_0()) {
ehci_hub_control(hcd,
ClearPortFeature,
USB_PORT_FEAT_POWER,
1, NULL, 0);
/* Flush those writes */
ehci_readl(ehci, &ehci->regs->command);
msleep(20);
}
#endif
return 0;
}
static int s5p_ehci_runtime_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
struct s5p_ehci_hcd *s5p_ehci = platform_get_drvdata(pdev);
struct usb_hcd *hcd = s5p_ehci->hcd;
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int rc = 0;
if (dev->power.is_suspended)
return 0;
/* platform device isn't suspended */
if (pdata && pdata->phy_resume)
rc = pdata->phy_resume(pdev, S5P_USB_PHY_HOST);
if (rc) {
s5p_ehci_configurate(hcd);
/* emptying the schedule aborts any urbs */
spin_lock_irq(&ehci->lock);
if (ehci->reclaim)
end_unlink_async(ehci);
ehci_work(ehci);
spin_unlock_irq(&ehci->lock);
usb_root_hub_lost_power(hcd->self.root_hub);
ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
ehci_writel(ehci, INTR_MASK, &ehci->regs->intr_enable);
(void)ehci_readl(ehci, &ehci->regs->intr_enable);
/* here we "know" root ports should always stay powered */
ehci_port_power(ehci, 1);
hcd->state = HC_STATE_SUSPENDED;
#ifdef CONFIG_USB_EXYNOS_SWITCH
} else {
if (samsung_board_rev_is_0_0()) {
ehci_hub_control(ehci_to_hcd(ehci),
SetPortFeature,
USB_PORT_FEAT_POWER,
1, NULL, 0);
/* Flush those writes */
ehci_readl(ehci, &ehci->regs->command);
msleep(20);
}
#endif
}
return 0;
}
static int ohci_hcd_s5p_drv_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct s5p_ohci_platdata *pdata = pdev->dev.platform_data;
struct s5p_ohci_hcd *s5p_ohci = platform_get_drvdata(pdev);
struct usb_hcd *hcd = s5p_ohci->hcd;
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
unsigned long flags;
int rc = 0;
/* Root hub was already suspended. Disable irq emission and
* mark HW unaccessible, bail out if RH has been resumed. Use
* the spinlock to properly synchronize with possible pending
* RH suspend or resume activity.
*
* This is still racy as hcd->state is manipulated outside of
* any locks =P But that will be a different fix.
*/
spin_lock_irqsave(&ohci->lock, flags);
if (hcd->state != HC_STATE_SUSPENDED && hcd->state != HC_STATE_HALT) {
spin_unlock_irqrestore(&ohci->lock, flags);
err("Not ready %s", hcd->self.bus_name);
return rc;
}
ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
(void)ohci_readl(ohci, &ohci->regs->intrdisable);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
spin_unlock_irqrestore(&ohci->lock, flags);
#ifdef CONFIG_USB_EXYNOS_SWITCH
if (samsung_board_rev_is_0_0())
ohci_writel (ohci, RH_HS_LPS, &ohci->regs->roothub.status);
#endif
if (pdata->phy_suspend)
pdata->phy_suspend(pdev, S5P_USB_PHY_HOST);
return rc;
}
static int __devinit ohci_hcd_s5p_drv_probe(struct platform_device *pdev)
{
struct s5p_ohci_platdata *pdata;
struct s5p_ohci_hcd *s5p_ohci;
struct usb_hcd *hcd = NULL;
struct ohci_hcd *ohci;
struct resource *res;
int irq;
int err;
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "No platform data defined\n");
return -EINVAL;
}
s5p_ohci = kzalloc(sizeof(struct s5p_ohci_hcd), GFP_KERNEL);
if (!s5p_ohci)
return -ENOMEM;
s5p_ohci->dev = &pdev->dev;
hcd = usb_create_hcd(&ohci_s5p_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
if (!hcd) {
dev_err(&pdev->dev, "Unable to create HCD\n");
err = -ENOMEM;
goto fail_hcd;
}
s5p_ohci->hcd = hcd;
s5p_ohci->clk = clk_get(&pdev->dev, "usbhost");
if (IS_ERR(s5p_ohci->clk)) {
dev_err(&pdev->dev, "Failed to get usbhost clock\n");
err = PTR_ERR(s5p_ohci->clk);
goto fail_clk;
}
err = clk_enable(s5p_ohci->clk);
if (err)
goto fail_clken;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "Failed to get I/O memory\n");
err = -ENXIO;
goto fail_io;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = ioremap(res->start, resource_size(res));
if (!hcd->regs) {
dev_err(&pdev->dev, "Failed to remap I/O memory\n");
err = -ENOMEM;
goto fail_io;
}
irq = platform_get_irq(pdev, 0);
if (!irq) {
dev_err(&pdev->dev, "Failed to get IRQ\n");
err = -ENODEV;
goto fail;
}
if (pdata->phy_init)
pdata->phy_init(pdev, S5P_USB_PHY_HOST);
ohci = hcd_to_ohci(hcd);
ohci_hcd_init(ohci);
#ifdef CONFIG_USB_EXYNOS_SWITCH
if (samsung_board_rev_is_0_0())
ohci->flags |= OHCI_QUIRK_SUPERIO;
#endif
err = usb_add_hcd(hcd, irq,
IRQF_DISABLED | IRQF_SHARED);
if (err) {
dev_err(&pdev->dev, "Failed to add USB HCD\n");
goto fail;
}
platform_set_drvdata(pdev, s5p_ohci);
create_ohci_sys_file(ohci);
s5p_ohci->power_on = 1;
#ifdef CONFIG_USB_EXYNOS_SWITCH
if (samsung_board_rev_is_0_0()) {
ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
(void)ohci_readl(ohci, &ohci->regs->intrdisable);
ohci_writel (ohci, RH_HS_LPS, &ohci->regs->roothub.status);
}
#endif
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
return 0;
fail:
iounmap(hcd->regs);
fail_io:
clk_disable(s5p_ohci->clk);
fail_clken:
clk_put(s5p_ohci->clk);
fail_clk:
usb_put_hcd(hcd);
fail_hcd:
kfree(s5p_ohci);
return err;
}
static int __devinit s5p_ehci_probe(struct platform_device *pdev)
{
struct s5p_ehci_platdata *pdata;
struct s5p_ehci_hcd *s5p_ehci;
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
struct resource *res;
int irq;
int err;
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "No platform data defined\n");
return -EINVAL;
}
s5p_ehci = kzalloc(sizeof(struct s5p_ehci_hcd), GFP_KERNEL);
if (!s5p_ehci)
return -ENOMEM;
s5p_ehci->dev = &pdev->dev;
hcd = usb_create_hcd(&s5p_ehci_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
if (!hcd) {
dev_err(&pdev->dev, "Unable to create HCD\n");
err = -ENOMEM;
goto fail_hcd;
}
s5p_ehci->hcd = hcd;
s5p_ehci->clk = clk_get(&pdev->dev, "usbhost");
if (IS_ERR(s5p_ehci->clk)) {
dev_err(&pdev->dev, "Failed to get usbhost clock\n");
err = PTR_ERR(s5p_ehci->clk);
goto fail_clk;
}
err = clk_enable(s5p_ehci->clk);
if (err)
goto fail_clken;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "Failed to get I/O memory\n");
err = -ENXIO;
goto fail_io;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = ioremap(res->start, resource_size(res));
if (!hcd->regs) {
dev_err(&pdev->dev, "Failed to remap I/O memory\n");
err = -ENOMEM;
goto fail_io;
}
irq = platform_get_irq(pdev, 0);
if (!irq) {
dev_err(&pdev->dev, "Failed to get IRQ\n");
err = -ENODEV;
goto fail;
}
if (pdata->phy_init)
pdata->phy_init(pdev, S5P_USB_PHY_HOST);
ehci = hcd_to_ehci(hcd);
ehci->caps = hcd->regs;
ehci->regs = hcd->regs +
HC_LENGTH(ehci, readl(&ehci->caps->hc_capbase));
s5p_ehci_configurate(hcd);
dbg_hcs_params(ehci, "reset");
dbg_hcc_params(ehci, "reset");
/* cache this readonly data; minimize chip reads */
ehci->hcs_params = readl(&ehci->caps->hcs_params);
err = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (err) {
dev_err(&pdev->dev, "Failed to add USB HCD\n");
goto fail;
}
platform_set_drvdata(pdev, s5p_ehci);
create_ehci_sys_file(ehci);
s5p_ehci->power_on = 1;
#ifdef CONFIG_USB_EXYNOS_SWITCH
if (samsung_board_rev_is_0_0())
ehci_hub_control(ehci_to_hcd(ehci),
ClearPortFeature,
USB_PORT_FEAT_POWER,
1, NULL, 0);
#endif
#ifdef CONFIG_USB_SUSPEND
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
#endif
return 0;
fail:
iounmap(hcd->regs);
fail_io:
clk_disable(s5p_ehci->clk);
fail_clken:
clk_put(s5p_ehci->clk);
fail_clk:
usb_put_hcd(hcd);
fail_hcd:
kfree(s5p_ehci);
return err;
}
