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head/sys/dev/pci/pci_pci.c
| Show First 20 Lines • Show All 1,051 Lines • ▼ Show 20 Lines | pcib_hotplug_present(struct pcib_softc *sc) | ||||
| return (-1); | return (-1); | ||||
| } | } | ||||
| static void | static void | ||||
| pcib_pcie_hotplug_update(struct pcib_softc *sc, uint16_t val, uint16_t mask, | pcib_pcie_hotplug_update(struct pcib_softc *sc, uint16_t val, uint16_t mask, | ||||
| bool schedule_task) | bool schedule_task) | ||||
| { | { | ||||
| bool card_inserted; | bool card_inserted, ei_engaged; | ||||
| /* Clear DETACHING if Present Detect has cleared. */ | /* Clear DETACHING if Present Detect has cleared. */ | ||||
| if ((sc->pcie_slot_sta & (PCIEM_SLOT_STA_PDC | PCIEM_SLOT_STA_PDS)) == | if ((sc->pcie_slot_sta & (PCIEM_SLOT_STA_PDC | PCIEM_SLOT_STA_PDS)) == | ||||
| PCIEM_SLOT_STA_PDC) | PCIEM_SLOT_STA_PDC) | ||||
| sc->flags &= ~PCIB_DETACHING; | sc->flags &= ~PCIB_DETACHING; | ||||
| card_inserted = pcib_hotplug_inserted(sc); | card_inserted = pcib_hotplug_inserted(sc); | ||||
| Show All 20 Lines | pcib_pcie_hotplug_update(struct pcib_softc *sc, uint16_t val, uint16_t mask, | ||||
| /* | /* | ||||
| * If a card is inserted, enable the Electromechanical | * If a card is inserted, enable the Electromechanical | ||||
| * Interlock. If a card is not inserted (or we are in the | * Interlock. If a card is not inserted (or we are in the | ||||
| * process of detaching), disable the Electromechanical | * process of detaching), disable the Electromechanical | ||||
| * Interlock. | * Interlock. | ||||
| */ | */ | ||||
| if (sc->pcie_slot_cap & PCIEM_SLOT_CAP_EIP) { | if (sc->pcie_slot_cap & PCIEM_SLOT_CAP_EIP) { | ||||
| mask |= PCIEM_SLOT_CTL_EIC; | mask |= PCIEM_SLOT_CTL_EIC; | ||||
| if (card_inserted != | ei_engaged = (sc->pcie_slot_sta & PCIEM_SLOT_STA_EIS) != 0; | ||||
| !(sc->pcie_slot_sta & PCIEM_SLOT_STA_EIS)) | if (card_inserted != ei_engaged) | ||||
| val |= PCIEM_SLOT_CTL_EIC; | val |= PCIEM_SLOT_CTL_EIC; | ||||
| } | } | ||||
| /* | /* | ||||
| * Start a timer to see if the Data Link Layer times out. | * Start a timer to see if the Data Link Layer times out. | ||||
| * Note that we only start the timer if Presence Detect | * Note that we only start the timer if Presence Detect | ||||
| * changed on this interrupt. Stop any scheduled timer if | * changed on this interrupt. Stop any scheduled timer if | ||||
| * the Data Link Layer is active. | * the Data Link Layer is active. | ||||
| Show All 10 Lines | if (card_inserted && | ||||
| pcib_pcie_dll_timeout, sc); | pcib_pcie_dll_timeout, sc); | ||||
| } else if (sc->pcie_link_sta & PCIEM_LINK_STA_DL_ACTIVE) | } else if (sc->pcie_link_sta & PCIEM_LINK_STA_DL_ACTIVE) | ||||
| callout_stop(&sc->pcie_dll_timer); | callout_stop(&sc->pcie_dll_timer); | ||||
| } | } | ||||
| pcib_pcie_hotplug_command(sc, val, mask); | pcib_pcie_hotplug_command(sc, val, mask); | ||||
| /* | /* | ||||
| * During attach the child "pci" device is added sychronously; | * During attach the child "pci" device is added synchronously; | ||||
| * otherwise, the task is scheduled to manage the child | * otherwise, the task is scheduled to manage the child | ||||
| * device. | * device. | ||||
| */ | */ | ||||
| if (schedule_task && | if (schedule_task && | ||||
| (pcib_hotplug_present(sc) != 0) != (sc->child != NULL)) | (pcib_hotplug_present(sc) != 0) != (sc->child != NULL)) | ||||
| taskqueue_enqueue(taskqueue_thread, &sc->pcie_hp_task); | taskqueue_enqueue(taskqueue_thread, &sc->pcie_hp_task); | ||||
| } | } | ||||
| ▲ Show 20 Lines • Show All 1,683 Lines • Show Last 20 Lines | |||||