/* * Look at the control requests to the root hub and see if we need to override. */ static int ohci_da8xx_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { struct device *dev = hcd->self.controller; int temp; switch (typeReq) { case GetPortStatus: /* Check the port number */ if (wIndex != 1) break; dev_dbg(dev, "GetPortStatus(%u)\n", wIndex); temp = roothub_portstatus(hcd_to_ohci(hcd), wIndex - 1); /* The port power status (PPS) bit defaults to 1 */ if (!ohci_da8xx_get_power(hcd)) temp &= ~RH_PS_PPS; /* The port over-current indicator (POCI) bit is always 0 */ if (ohci_da8xx_get_oci(hcd) > 0) temp |= RH_PS_POCI; /* The over-current indicator change (OCIC) bit is 0 too */ if (ocic_mask & (1 << wIndex)) temp |= RH_PS_OCIC; put_unaligned(cpu_to_le32(temp), (__le32 *)buf); return 0; case SetPortFeature: temp = 1; goto check_port; case ClearPortFeature: temp = 0; check_port: /* Check the port number */ if (wIndex != 1) break; switch (wValue) { case USB_PORT_FEAT_POWER: dev_dbg(dev, "%sPortFeature(%u): %s\n", temp ? "Set" : "Clear", wIndex, "POWER"); return ohci_da8xx_set_power(hcd, temp) ? -EPIPE : 0; case USB_PORT_FEAT_C_OVER_CURRENT: dev_dbg(dev, "%sPortFeature(%u): %s\n", temp ? "Set" : "Clear", wIndex, "C_OVER_CURRENT"); if (temp) ocic_mask |= 1 << wIndex; else ocic_mask &= ~(1 << wIndex); return 0; } } return orig_ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); }
static int ohci_hub_status_data (struct usb_hcd *hcd, char *buf) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); int i, changed = 0, length = 1; int can_suspend; unsigned long flags; can_suspend = device_may_wakeup(&hcd->self.root_hub->dev); spin_lock_irqsave (&ohci->lock, flags); /* handle autosuspended root: finish resuming before * letting khubd or root hub timer see state changes. */ if (unlikely((ohci->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_OPER || !HC_IS_RUNNING(hcd->state))) { can_suspend = 0; goto done; } /* undocumented erratum seen on at least rev D */ if ((ohci->flags & OHCI_QUIRK_AMD756) && (roothub_a (ohci) & RH_A_NDP) > MAX_ROOT_PORTS) { ohci_warn (ohci, "bogus NDP, rereads as NDP=%d\n", ohci_readl (ohci, &ohci->regs->roothub.a) & RH_A_NDP); /* retry later; "should not happen" */ goto done; } /* init status */ if (roothub_status (ohci) & (RH_HS_LPSC | RH_HS_OCIC)) buf [0] = changed = 1; else buf [0] = 0; if (ohci->num_ports > 7) { buf [1] = 0; length++; } /* look at each port */ for (i = 0; i < ohci->num_ports; i++) { u32 status = roothub_portstatus (ohci, i); /* can't autosuspend with active ports */ if ((status & RH_PS_PES) && !(status & RH_PS_PSS)) can_suspend = 0; if (status & (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | RH_PS_PRSC)) { changed = 1; if (i < 7) buf [0] |= 1 << (i + 1); else buf [1] |= 1 << (i - 7); continue; } } /* after root hub changes, stop polling after debouncing * for a while and maybe kicking in autosuspend */ if (changed) { ohci->next_statechange = jiffies + STATECHANGE_DELAY; can_suspend = 0; } else if (time_before (jiffies, ohci->next_statechange)) { can_suspend = 0; } else { #ifdef CONFIG_PM can_suspend = can_suspend && !ohci->ed_rm_list && ((OHCI_CTRL_HCFS | OHCI_SCHED_ENABLES) & ohci->hc_control) == OHCI_USB_OPER; #endif if (hcd->uses_new_polling) { hcd->poll_rh = 0; /* use INTR_RHSC iff INTR_RD won't apply */ if (!can_suspend) ohci_writel (ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable); } } done: spin_unlock_irqrestore (&ohci->lock, flags); #ifdef CONFIG_PM /* save power by autosuspending idle root hubs; * INTR_RD wakes us when there's work */ if (can_suspend && usb_trylock_device (hcd->self.root_hub) == 0) { ohci_vdbg (ohci, "autosuspend\n"); (void) ohci_bus_suspend (hcd); usb_unlock_device (hcd->self.root_hub); } #endif return changed ? length : 0; }
static int ohci_da8xx_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { struct device *dev = hcd->self.controller; struct da8xx_ohci_root_hub *hub = dev->platform_data; int temp; switch (typeReq) { case GetPortStatus: if (wIndex != 1) break; dev_dbg(dev, "GetPortStatus(%u)\n", wIndex); temp = roothub_portstatus(hcd_to_ohci(hcd), wIndex - 1); if (hub->get_power && hub->get_power(wIndex) == 0) temp &= ~RH_PS_PPS; if (hub->get_oci && hub->get_oci(wIndex) > 0) temp |= RH_PS_POCI; if (ocic_mask & (1 << wIndex)) temp |= RH_PS_OCIC; put_unaligned(cpu_to_le32(temp), (__le32 *)buf); return 0; case SetPortFeature: temp = 1; goto check_port; case ClearPortFeature: temp = 0; check_port: if (wIndex != 1) break; switch (wValue) { case USB_PORT_FEAT_POWER: dev_dbg(dev, "%sPortFeature(%u): %s\n", temp ? "Set" : "Clear", wIndex, "POWER"); if (!hub->set_power) return -EPIPE; return hub->set_power(wIndex, temp) ? -EPIPE : 0; case USB_PORT_FEAT_C_OVER_CURRENT: dev_dbg(dev, "%sPortFeature(%u): %s\n", temp ? "Set" : "Clear", wIndex, "C_OVER_CURRENT"); if (temp) ocic_mask |= 1 << wIndex; else ocic_mask &= ~(1 << wIndex); return 0; } } return ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); }
static int ohci_hub_status_data (struct usb_hcd *hcd, char *buf) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); int ports, i, changed = 0, length = 1; int can_suspend = hcd->can_wakeup; unsigned long flags; spin_lock_irqsave (&ohci->lock, flags); // hack by cfyeh for usb suspend/resume if(usb_ehci_suspend_flag == 1) { can_suspend = 0; goto done; } /* handle autosuspended root: finish resuming before * letting khubd or root hub timer see state changes. */ if ((ohci->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_OPER || !HC_IS_RUNNING(hcd->state)) { can_suspend = 0; goto done; } ports = roothub_a (ohci) & RH_A_NDP; if (ports > MAX_ROOT_PORTS) { ohci_err (ohci, "bogus NDP=%d, rereads as NDP=%d\n", ports, ohci_readl (ohci, &ohci->regs->roothub.a) & RH_A_NDP); /* retry later; "should not happen" */ goto done; } /* init status */ if (roothub_status (ohci) & (RH_HS_LPSC | RH_HS_OCIC)) buf [0] = changed = 1; else buf [0] = 0; if (ports > 7) { buf [1] = 0; length++; } /* look at each port */ for (i = 0; i < ports; i++) { u32 status = roothub_portstatus (ohci, i); if (status & (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | RH_PS_PRSC)) { changed = 1; if (i < 7) buf [0] |= 1 << (i + 1); else buf [1] |= 1 << (i - 7); continue; } /* can suspend if no ports are enabled; or if all all * enabled ports are suspended AND remote wakeup is on. */ if (!(status & RH_PS_CCS)) continue; if ((status & RH_PS_PSS) && hcd->remote_wakeup) continue; can_suspend = 0; } done: spin_unlock_irqrestore (&ohci->lock, flags); #if defined(CONFIG_PM) || defined(CONFIG_REALTEK_VENUS_USB) //cfyeh+ 2005/11/07 /* save power by suspending idle root hubs; * INTR_RD wakes us when there's work * NOTE: if we can do this, we don't need a root hub timer! */ if (can_suspend && !changed && !ohci->ed_rm_list && ((OHCI_CTRL_HCFS | OHCI_SCHED_ENABLES) & ohci->hc_control) == OHCI_USB_OPER && time_after (jiffies, ohci->next_statechange) && usb_trylock_device (hcd->self.root_hub) ) { ohci_vdbg (ohci, "autosuspend\n"); (void) ohci_hub_suspend (hcd); hcd->state = HC_STATE_RUNNING; usb_unlock_device (hcd->self.root_hub); } #endif return changed ? length : 0; }
static int ohci_hub_status_data (struct usb_hcd *hcd, char *buf) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); int i, changed = 0, length = 1; int can_suspend = hcd->can_wakeup; unsigned long flags; spin_lock_irqsave (&ohci->lock, flags); /* handle autosuspended root: finish resuming before * letting khubd or root hub timer see state changes. */ if (unlikely((ohci->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_OPER || !HC_IS_RUNNING(hcd->state))) { can_suspend = 0; goto done; } /* undocumented erratum seen on at least rev D */ if ((ohci->flags & OHCI_QUIRK_AMD756) && (roothub_a (ohci) & RH_A_NDP) > MAX_ROOT_PORTS) { ohci_warn (ohci, "bogus NDP, rereads as NDP=%d\n", ohci_readl (ohci, &ohci->regs->roothub.a) & RH_A_NDP); /* retry later; "should not happen" */ goto done; } /* init status */ if (roothub_status (ohci) & (RH_HS_LPSC | RH_HS_OCIC)) buf [0] = changed = 1; else buf [0] = 0; if (ohci->num_ports > 7) { buf [1] = 0; length++; } /* look at each port */ for (i = 0; i < ohci->num_ports; i++) { u32 status = roothub_portstatus (ohci, i); if (status & (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | RH_PS_PRSC)) { changed = 1; if (i < 7) buf [0] |= 1 << (i + 1); else buf [1] |= 1 << (i - 7); continue; } /* can suspend if no ports are enabled; or if all all * enabled ports are suspended AND remote wakeup is on. */ if (!(status & RH_PS_CCS)) continue; if ((status & RH_PS_PSS) && hcd->remote_wakeup) continue; can_suspend = 0; } done: spin_unlock_irqrestore (&ohci->lock, flags); #ifdef CONFIG_PM /* save power by suspending idle root hubs; * INTR_RD wakes us when there's work */ if (can_suspend && !changed && !ohci->ed_rm_list && ((OHCI_CTRL_HCFS | OHCI_SCHED_ENABLES) & ohci->hc_control) == OHCI_USB_OPER && time_after (jiffies, ohci->next_statechange) && usb_trylock_device (hcd->self.root_hub) == 0 ) { ohci_vdbg (ohci, "autosuspend\n"); (void) ohci_bus_suspend (hcd); usb_unlock_device (hcd->self.root_hub); } #endif return changed ? length : 0; }
static int ohci_hub_status_data (struct usb_hcd *hcd, char *buf) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); int ports, i, changed = 0, length = 1; int can_suspend = 1; ports = roothub_a (ohci) & RH_A_NDP; if (ports > MAX_ROOT_PORTS) { if (!HCD_IS_RUNNING(ohci->hcd.state)) return -ESHUTDOWN; ohci_err (ohci, "bogus NDP=%d, rereads as NDP=%d\n", ports, ohci_readl (&ohci->regs->roothub.a) & RH_A_NDP); /* retry later; "should not happen" */ return 0; } /* init status */ if (roothub_status (ohci) & (RH_HS_LPSC | RH_HS_OCIC)) buf [0] = changed = 1; else buf [0] = 0; if (ports > 7) { buf [1] = 0; length++; } /* look at each port */ for (i = 0; i < ports; i++) { u32 status = roothub_portstatus (ohci, i); if (status & (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | RH_PS_PRSC)) { changed = 1; if (i < 7) buf [0] |= 1 << (i + 1); else buf [1] |= 1 << (i - 7); continue; } /* can suspend if no ports are enabled; or if all all * enabled ports are suspended AND remote wakeup is on. */ if (!(status & RH_PS_CCS)) continue; if ((status & RH_PS_PSS) && ohci->hcd.remote_wakeup) continue; can_suspend = 0; } #ifdef CONFIG_PM /* save power by suspending idle root hubs; * INTR_RD wakes us when there's work */ if (can_suspend && !changed && !ohci->ed_rm_list && ((OHCI_CTRL_HCFS | OHCI_SCHED_ENABLES) & ohci->hc_control) == OHCI_USB_OPER && down_trylock (&hcd->self.root_hub->serialize) == 0 ) { ohci_vdbg (ohci, "autosuspend\n"); (void) ohci_hub_suspend (&ohci->hcd); ohci->hcd.state = USB_STATE_RUNNING; up (&hcd->self.root_hub->serialize); } #endif return changed ? length : 0; }