static int tegra_ehci_bus_suspend(struct usb_hcd *hcd)
{
struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller);
int err = 0;
EHCI_DBG("%s() BEGIN\n", __func__);
#ifdef CONFIG_TEGRA_EHCI_BOOST_CPU_FREQ
tegra->boost_requested = false;
if (tegra->boost_enable
&& pm_qos_request_active(&tegra->boost_cpu_freq_req))
pm_qos_update_request(&tegra->boost_cpu_freq_req,
PM_QOS_DEFAULT_VALUE);
tegra->cpu_boost_in_work = false;
#endif
mutex_lock(&tegra->sync_lock);
tegra->bus_suspended_fail = false;
err = ehci_bus_suspend(hcd);
if (err)
tegra->bus_suspended_fail = true;
else
usb_phy_set_suspend(get_usb_phy(tegra->phy), 1);
mutex_unlock(&tegra->sync_lock);
EHCI_DBG("%s() END\n", __func__);
return err;
}
static int ehci_omap_bus_suspend(struct usb_hcd *hcd)
{
struct device *dev = hcd->self.controller;
struct ehci_hcd_omap_platform_data *pdata;
struct omap_hwmod *oh;
struct clk *clk;
int ret = 0;
int i;
dev_dbg(dev, "ehci_omap_bus_suspend\n");
ret = ehci_bus_suspend(hcd);
if (ret != 0) {
dev_dbg(dev, "ehci_omap_bus_suspend failed %d\n", ret);
return ret;
}
oh = omap_hwmod_lookup(USBHS_EHCI_HWMODNAME);
omap_hwmod_enable_ioring_wakeup(oh);
if (dev->parent)
pm_runtime_put_sync(dev->parent);
/* At the end, disable any external transceiver clocks */
pdata = dev->platform_data;
for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
clk = pdata->transceiver_clk[i];
if (clk)
clk_disable(clk);
}
return ret;
}
static int omap_ehci_bus_suspend(struct usb_hcd *hcd)
{
struct ehci_hcd_omap *omap;
unsigned long flags;
int ret = 0;
u32 reg;
omap = ((struct ehci_hcd *)
((char *)hcd_to_ehci(hcd)))->omap_p;
spin_lock_irqsave(&sus_res_lock, flags);
ret = ehci_bus_suspend(hcd);
if(!omap->suspended){
omap_writel(OHCI_HC_CTRL_SUSPEND, OHCI_HC_CONTROL);
mdelay(8); /* MSTANDBY assertion is delayed by ~8ms */
reg = ehci_omap_readl(omap->uhh_base, OMAP_UHH_SYSCONFIG);
reg &= ~(3 << 12);
reg &= ~(3 << 3);
ehci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg);
clk_disable(omap->usbhost_fck);
clk_disable(omap->usbhost_fs_fck);
reg = ehci_omap_readl(omap->tll_base, OMAP_TLL_SHARED_CONF);
reg &=~(1);
ehci_omap_writel(omap->tll_base, OMAP_TLL_SHARED_CONF, reg);
omap->suspended = 1;
clk_disable(omap->usbtll_fck);
}
spin_unlock_irqrestore(&sus_res_lock, flags);
return 0;
}
static int ehci_fsl_bus_suspend(struct usb_hcd *hcd)
{
int ret = 0;
struct fsl_usb2_platform_data *pdata;
pdata = hcd->self.controller->platform_data;
printk(KERN_DEBUG "%s, %s\n", __func__, pdata->name);
/* the host is already at low power mode */
if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
return 0;
}
ret = ehci_bus_suspend(hcd);
if (ret != 0)
return ret;
if (pdata->platform_suspend)
pdata->platform_suspend(pdata);
usb_host_set_wakeup(hcd->self.controller, true);
fsl_usb_lowpower_mode(pdata, true);
fsl_usb_clk_gate(hcd->self.controller->platform_data, false);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
return ret;
}
static int ehci_omap_bus_suspend(struct usb_hcd *hcd)
{
int ret;
printk(KERN_DEBUG " omap_bus_suspend\n");
ret = ehci_bus_suspend(hcd);
return ret;
}
int s5p_ehci_bus_suspend(struct usb_hcd *hcd)
{
int ret;
ret = ehci_bus_suspend(hcd);
/* Decrease pm_count that was increased at s5p_ehci_resume func. */
pm_runtime_put_noidle(hcd->self.controller);
return ret;
}
static int ehci_brcm_suspend(struct usb_hcd *hcd)
{
int ret;
ret = ehci_bus_suspend(hcd);
ehci_prepare_ports_for_controller_suspend(hcd_to_ehci(hcd), false);
brcm_usb_suspend(hcd);
return ret;
}
static int usb_ehci_bus_suspend(struct usb_hcd *hcd)
{
int ret = 0;
ret = ehci_bus_suspend(hcd);
omap_ehci_bus_suspend(gb_omap->dev);
return ret;
}
static int
stm_ehci_bus_suspend(struct usb_hcd *hcd)
{
ehci_bus_suspend(hcd);
/*
* force the root hub to be resetted on resume!
* re-enumerates everything during a standby, mem and hibernation...
*/
usb_root_hub_lost_power(hcd->self.root_hub);
return 0;
}
static int ehci_msm_bus_suspend(struct usb_hcd *hcd)
{
int ret;
ret = ehci_bus_suspend(hcd);
if (ret) {
pr_err("ehci_bus suspend faield\n");
return ret;
}
return usb_lpm_enter(hcd);
}
static int tegra_ehci_bus_suspend(struct usb_hcd *hcd)
{
struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller);
int error_status = 0;
error_status = ehci_bus_suspend(hcd);
if (!error_status && tegra->power_down_on_bus_suspend) {
tegra_usb_suspend(hcd);
tegra->bus_suspended = 1;
}
return error_status;
}
static int ehci_hsic_bus_suspend(struct usb_hcd *hcd)
{
struct msm_hsic_hcd *mehci = hcd_to_hsic(hcd);
if (!(readl_relaxed(USB_PORTSC) & PORT_PE)) {
dbg_log_event(NULL, "RH suspend attempt failed", 0);
dev_dbg(mehci->dev, "%s:port is not enabled skip suspend\n",
__func__);
return -EAGAIN;
}
dbg_log_event(NULL, "Suspend RH", 0);
return ehci_bus_suspend(hcd);
}
static int ehci_omap_bus_suspend(struct usb_hcd *hcd)
{
struct device *dev = hcd->self.controller;
struct uhhtll_apis *uhhtllp = dev->platform_data;
int ret = 0;
ret = ehci_bus_suspend(hcd);
if (ret != 0)
dev_dbg(dev, "ehci_bus_suspend failed %d\n", ret);
if (!ret && uhhtllp && uhhtllp->suspend)
ret = uhhtllp->suspend(OMAP_EHCI);
return ret;
}
static int tegra_ehci_bus_suspend(struct usb_hcd *hcd)
{
struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller);
int err = 0;
EHCI_DBG("%s() BEGIN\n", __func__);
mutex_lock(&tegra->sync_lock);
tegra->bus_suspended_fail = false;
err = ehci_bus_suspend(hcd);
if (err)
tegra->bus_suspended_fail = true;
else
usb_phy_set_suspend(get_usb_phy(tegra->phy), 1);
mutex_unlock(&tegra->sync_lock);
EHCI_DBG("%s() END\n", __func__);
return err;
}
static int ehci_msm_bus_suspend(struct usb_hcd *hcd)
{
int ret;
struct msmusb_hcd *mhcd = hcd_to_mhcd(hcd);
ret = ehci_bus_suspend(hcd);
if (ret) {
pr_err("ehci_bus suspend faield\n");
return ret;
}
if (PHY_TYPE(mhcd->pdata->phy_info) == USB_PHY_INTEGRATED)
ret = otg_set_suspend(mhcd->xceiv, 1);
else
ret = usb_lpm_enter(hcd);
wake_unlock(&mhcd->wlock);
return ret;
}
static int ehci_msm_bus_suspend(struct usb_hcd *hcd)
{
int ret;
struct msmusb_hcd *mhcd = hcd_to_mhcd(hcd);
struct device *dev = hcd->self.controller;
ret = ehci_bus_suspend(hcd);
if (ret) {
pr_err("ehci_bus suspend faield\n");
return ret;
}
if (PHY_TYPE(mhcd->pdata->phy_info) == USB_PHY_INTEGRATED)
ret = usb_phy_set_suspend(mhcd->xceiv, 1);
else
ret = usb_lpm_enter(hcd);
pm_runtime_put_noidle(dev);
pm_runtime_suspend(dev);
wake_unlock(&mhcd->wlock);
return ret;
}
static int tegra_ehci_bus_suspend(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
struct tegra_hcd_platform_data *pdata;
int error_status = 0;
/* initialize the platform data pointer */
pdata = hcd->self.controller->platform_data;
#ifdef CONFIG_USB_OTG_UTILS
if (pdata->otg_mode && ehci->transceiver) {
if (ehci->transceiver->state != OTG_STATE_A_HOST) {
/* we are not in host mode, return */
return 0;
} else {
ehci->transceiver->state = OTG_STATE_A_SUSPEND;
ehci->host_reinited = 0;
}
}
#endif
if (!pdata->otg_mode && pdata->id_detect==ID_PIN_CABLE_ID) {
u32 status;
/* check for ID pin status */
status = readl(hcd->regs + TEGRA_USB_PHY_WAKEUP_REG_OFFSET);
/* If Id pin is high means host is not connected return */
if (status & TEGRA_USB_ID_PIN_STATUS) {
return 0;
}
}
if (ehci->host_resumed) {
error_status = ehci_bus_suspend(hcd);
//if (!error_status)
//tegra_ehci_power_down(hcd);
}
return error_status;
}
static int ehci_omap_bus_suspend(struct usb_hcd *hcd)
{
struct usb_bus *bus = hcd_to_bus(hcd);
int ret;
#ifdef CONFIG_LOGIC_OMAP3530_USB3320_HACK
struct ehci_hcd_omap *omap = platform_get_drvdata(to_platform_device(
hcd->self.controller));
struct ehci_hcd *ehci = omap->ehci;
int ports = HCS_N_PORTS (omap->ehci->hcs_params);
int i;
// Manually suspend the ports HERE. We want to be able to switch to
// GPIO lines before it shuts down the controller entirely;
// Otherwise, it'll wake up the PHY again.
for(i=0;i<ports;++i)
{
u32 __iomem *status_reg = &omap->ehci->regs->port_status[i];
u32 temp = ehci_readl(omap->ehci, status_reg);
if((temp & PORT_PE) == 0 || (temp & PORT_RESET) != 0)
continue;
ehci_writel(omap->ehci, temp | PORT_SUSPEND, status_reg);
set_bit(i, &ehci->suspended_ports);
}
msleep(1);
usb3320_hack_install();
#endif
ret = ehci_bus_suspend(hcd);
ehci_omap_dev_suspend(bus->controller);
return ret;
}
static int ehci_fsl_bus_suspend(struct usb_hcd *hcd)
{
int ret = 0;
struct fsl_usb2_platform_data *pdata;
u32 tmp, portsc;
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
pdata = hcd->self.controller->platform_data;
printk(KERN_DEBUG "%s, %s\n", __func__, pdata->name);
/* the host is already at low power mode */
if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
return 0;
}
portsc = ehci_readl(ehci, &ehci->regs->port_status[0]);
ret = ehci_bus_suspend(hcd);
if (ret != 0)
return ret;
if (portsc & PORT_CCS) {
printk(KERN_DEBUG "there is a device on the port\n");
tmp = ehci_readl(ehci, &ehci->regs->command);
tmp |= CMD_RUN;
ehci_writel(ehci, tmp, &ehci->regs->command);
}
if (pdata->platform_suspend)
pdata->platform_suspend(pdata);
usb_host_set_wakeup(hcd->self.controller, true);
fsl_usb_lowpower_mode(pdata, true);
fsl_usb_clk_gate(hcd->self.controller->platform_data, false);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
return ret;
}
static int tegra_ehci_bus_suspend(struct usb_hcd *hcd)
{
struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller);
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int err = 0;
EHCI_DBG("%s() BEGIN\n", __func__);
pr_info("%s::resetdone = %ld:tegra->port_resuming =%d\n", __func__, ehci->reset_done[0], tegra->port_resuming);
mutex_lock(&tegra->sync_lock);
tegra->bus_suspended_fail = false;
err = ehci_bus_suspend(hcd);
if (err) {
if(tegra->port_resuming)
pr_info("%s: bus_suspended aborted because of resume. err=(%d):resetdone = %ld:tegra->port_resuming =%d\n", __func__, err, ehci->reset_done[0], tegra->port_resuming);
else
pr_info("%s: bus_suspended_fail err=(%d):resetdone = %ld\n", __func__, err, ehci->reset_done[0]);
tegra->bus_suspended_fail = true;
}
else
tegra_usb_phy_suspend(tegra->phy);
mutex_unlock(&tegra->sync_lock);
EHCI_DBG("%s() END\n", __func__);
return err;
}
static int omap_ehci_bus_suspend(struct usb_hcd *hcd)
{
return ehci_bus_suspend(hcd);
}
static int ehci_omap_bus_suspend(struct usb_hcd *hcd)
{
int ret;
u32 status;
u32 sysconfig;
unsigned long flags;
struct ehci_hcd *ehci;
struct ehci_hcd_omap_platform_data *pdata;
struct ehci_hcd_omap *omap = dev_get_drvdata(hcd->self.controller);
dev_dbg(hcd->self.controller, "%s %ld %lu\n", __func__,
in_interrupt(), jiffies);
ehci = hcd_to_ehci(hcd);
pdata = omap->dev->dev.platform_data;
/* mask interrupt 77 to avoid race condition with ehci_irq */
/* omap_writel(0x2000, 0x482000CC); */
disable_irq(hcd->irq);
ret = ehci_bus_suspend(hcd);
if (ret) {
enable_irq(hcd->irq);
return ret;
}
/* Put UHH in SmartStandby mode */
sysconfig = ehci_omap_readl(omap->uhh_base, OMAP_UHH_SYSCONFIG);
sysconfig &= ~OMAP_UHH_SYSCONFIG_MIDLEMODE_MASK;
sysconfig |= OMAP_UHH_SYSCONFIG_MIDLEMODE;
ehci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG, sysconfig);
spin_lock_irqsave(&usb_clocks_lock, flags);
if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
if (pdata->usbhost_standby_status)
ret = pdata->usbhost_standby_status();
if (ret == 0) {
printk(KERN_ERR "ehci: suspend failed!\n");
ret = -EBUSY;
goto end;
} else
ret = 0;
status = ehci_readl(ehci, &ehci->regs->status);
if (status & INTR_MASK) {
printk(KERN_ERR "ehci: pending irq, resume!\n");
ret = -EBUSY;
goto end;
}
ehci_omap_writel(omap->tll_base, OMAP_TLL_SHARED_CONF,
ehci_omap_readl(omap->tll_base, OMAP_TLL_SHARED_CONF) &
~(1));
/* Enable the interrupt so that the remote-wakeup
* can be detected */
ehci_omap_writel(omap->tll_base, OMAP_USBTLL_IRQSTATUS, 7);
ehci_omap_writel(omap->tll_base, OMAP_USBTLL_IRQENABLE, 1);
/* Put UHH in ForceIdle mode */
sysconfig = ehci_omap_readl(omap->uhh_base, OMAP_UHH_SYSCONFIG);
sysconfig &= ~OMAP_UHH_SYSCONFIG_SIDLEMODE_MASK;
ehci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG, sysconfig);
if (omap->usbhost1_48m_fck)
clk_disable(omap->usbhost1_48m_fck);
if (omap->usbhost2_120m_fck)
clk_disable(omap->usbhost2_120m_fck);
if (omap->usbtll_fck)
clk_disable(omap->usbtll_fck);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
LOG_USBHOST_ACTIVITY(aUsbHostDbg, iUsbHostDbg, jiffies);
}
spin_unlock_irqrestore(&usb_clocks_lock, flags);
#ifdef CONFIG_HAS_WAKELOCK
wake_unlock(&ehci->wake_lock_ehci_pm);
#endif
return 0;
end:
/* Put UHH in NoStandby mode */
sysconfig = ehci_omap_readl(omap->uhh_base, OMAP_UHH_SYSCONFIG);
sysconfig &= ~OMAP_UHH_SYSCONFIG_MIDLEMODE_MASK;
sysconfig |= OMAP_UHH_SYSCONFIG_NOSTBYMODE;
ehci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG, sysconfig);
spin_unlock_irqrestore(&usb_clocks_lock, flags);
ehci_bus_resume(hcd);
/* unmask irq 77 */
/* omap_writel(0x2000, 0x482000C8); */
enable_irq(hcd->irq);
return ret;
}
static int ehci_hsic_bus_suspend(struct usb_hcd *hcd)
{
dbg_log_event(NULL, "Suspend RH", 0);
return ehci_bus_suspend(hcd);
}
/* Electrical test support */
static void host_write_port(u8 port, const char *buf)
{
struct usb_bus *bus;
struct ehci_hcd *ehci = hcd_to_ehci(ghcd);
u32 port_status;
u32 cmd;
/* Reset Device */
if (!strncmp(buf, "reset", 5)) {
printk(KERN_INFO "\n RESET PORT \n");
bus = hcd_to_bus(ghcd);
if (bus->root_hub->children[port])
usb_reset_device(bus->root_hub->children[port]);
}
if (!strncmp(buf, "t-j", 3)) {
printk(KERN_INFO "\n TEST_J \n");
#ifdef CONFIG_PM
/* Suspend bus first */
ehci_bus_suspend(ghcd);
#endif
port_status = ehci_readl(ehci, &ehci->regs->port_status[port]);
cmd = ehci_readl(ehci, &ehci->regs->command);
port_status |= 1<<16; /* Test_Packet on Port2 */
ehci_writel(ehci, port_status, &ehci->regs->port_status[port]);
cmd |= CMD_RUN;
ehci_writel(ehci, cmd, &ehci->regs->command);
}
if (!strncmp(buf, "t-k", 3)) {
printk(KERN_INFO "\n TEST_K \n");
#ifdef CONFIG_PM
/* Suspend bus first */
ehci_bus_suspend(ghcd);
#endif
port_status = ehci_readl(ehci, &ehci->regs->port_status[port]);
cmd = ehci_readl(ehci, &ehci->regs->command);
port_status |= 2<<16; /* Test_Packet on Port2 */
ehci_writel(ehci, port_status, &ehci->regs->port_status[port]);
cmd |= CMD_RUN;
ehci_writel(ehci, cmd, &ehci->regs->command);
}
if (!strncmp(buf, "t-se0", 5)) {
printk(KERN_INFO "\n TEST_SE0_NAK \n");
#ifdef CONFIG_PM
/* Suspend bus first */
ehci_bus_suspend(ghcd);
#endif
port_status = ehci_readl(ehci, &ehci->regs->port_status[port]);
cmd = ehci_readl(ehci, &ehci->regs->command);
port_status |= 3<<16; /* Test_Packet on Port2 */
ehci_writel(ehci, port_status, &ehci->regs->port_status[port]);
cmd |= CMD_RUN;
ehci_writel(ehci, cmd, &ehci->regs->command);
}
/* Send test packet on suspended port */
if (!strncmp(buf, "t-pkt", 5)) {
printk(KERN_INFO "\n TEST_PACKET \n");
#ifdef CONFIG_PM
/* Suspend bus first */
ehci_bus_suspend(ghcd);
#endif
port_status = ehci_readl(ehci, &ehci->regs->port_status[port]);
cmd = ehci_readl(ehci, &ehci->regs->command);
/* Set Test packet bit */
port_status |= 4<<16; /* Test_Packet on Port2 */
ehci_writel(ehci, port_status, &ehci->regs->port_status[port]);
cmd |= CMD_RUN;
ehci_writel(ehci, cmd, &ehci->regs->command);
}
if (!strncmp(buf, "t-force", 7)) {
printk(KERN_INFO "\n TEST_FORCE \n");
#ifdef CONFIG_PM
/* Suspend bus first */
ehci_bus_suspend(ghcd);
#endif
port_status = ehci_readl(ehci, &ehci->regs->port_status[port]);
cmd = ehci_readl(ehci, &ehci->regs->command);
port_status |= 5<<16; /* Test_Packet on Port2 */
ehci_writel(ehci, port_status, &ehci->regs->port_status[port]);
cmd |= CMD_RUN;
ehci_writel(ehci, cmd, &ehci->regs->command);
}
}
