/*ARGSUSED*/
static void
ppb_init_hotplug(ppb_devstate_t *ppb)
{
ppb->hotplug_capable = B_FALSE;
if (ddi_prop_exists(DDI_DEV_T_ANY, ppb->dip, DDI_PROP_DONTPASS,
"hotplug-capable")) {
(void) modload("misc", "pcihp");
if (pcihp_init(ppb->dip) != DDI_SUCCESS) {
cmn_err(CE_WARN,
"%s #%d: Failed setting hotplug framework",
ddi_driver_name(ppb->dip),
ddi_get_instance(ppb->dip));
} else
ppb->hotplug_capable = B_TRUE;
}
if (ppb->hotplug_capable == B_FALSE) {
/*
* create minor node for devctl interfaces
*/
if (ddi_create_minor_node(ppb->dip, "devctl", S_IFCHR,
PCI_MINOR_NUM(ddi_get_instance(ppb->dip), PCI_DEVCTL_MINOR),
DDI_NT_NEXUS, 0) != DDI_SUCCESS)
cmn_err(CE_WARN,
"%s #%d: Failed to create a minor node",
ddi_driver_name(ppb->dip),
ddi_get_instance(ppb->dip));
}
}
/*
* This function is similar to pciehpc_slotinfo_init() with some
* changes:
* - no need for kernel thread to handle ATTN button events
* - function ops for connect/disconnect are different
*
* ASSUMPTION: No conflict in doing reads to HP registers directly.
* Otherwise, there are no ACPI interfaces to do LED control or to get
* the hot plug capabilities (ATTN button, MRL, etc.).
*/
static int
pciehpc_acpi_slotinfo_init(pcie_hp_ctrl_t *ctrl_p)
{
uint32_t slot_capabilities;
pcie_hp_slot_t *slot_p = ctrl_p->hc_slots[0];
pcie_bus_t *bus_p = PCIE_DIP2BUS(ctrl_p->hc_dip);
mutex_enter(&ctrl_p->hc_mutex);
/*
* setup DDI HP framework slot information structure
*/
slot_p->hs_device_num = 0;
slot_p->hs_info.cn_type = DDI_HP_CN_TYPE_PCIE;
slot_p->hs_info.cn_type_str = PCIE_ACPI_HP_TYPE;
slot_p->hs_info.cn_child = NULL;
slot_p->hs_minor =
PCI_MINOR_NUM(ddi_get_instance(ctrl_p->hc_dip),
slot_p->hs_device_num);
/* read Slot Capabilities Register */
slot_capabilities = pciehpc_reg_get32(ctrl_p,
bus_p->bus_pcie_off + PCIE_SLOTCAP);
/* setup slot number/name */
pciehpc_set_slot_name(ctrl_p);
/* check if Attn Button present */
ctrl_p->hc_has_attn = (slot_capabilities &
PCIE_SLOTCAP_ATTN_BUTTON) ? B_TRUE : B_FALSE;
/* check if Manual Retention Latch sensor present */
ctrl_p->hc_has_mrl = (slot_capabilities & PCIE_SLOTCAP_MRL_SENSOR) ?
B_TRUE : B_FALSE;
/*
* PCI-E (draft) version 1.1 defines EMI Lock Present bit
* in Slot Capabilities register. Check for it.
*/
ctrl_p->hc_has_emi_lock = (slot_capabilities &
PCIE_SLOTCAP_EMI_LOCK_PRESENT) ? B_TRUE : B_FALSE;
/* get current slot state from the hw */
pciehpc_get_slot_state(slot_p);
if (slot_p->hs_info.cn_state >= DDI_HP_CN_STATE_ENABLED)
slot_p->hs_condition = AP_COND_OK;
mutex_exit(&ctrl_p->hc_mutex);
/* setup Notify() handler for hot plug events from ACPI BIOS */
if (pciehpc_acpi_install_event_handler(ctrl_p) != AE_OK)
return (DDI_FAILURE);
PCIE_DBG("ACPI hot plug is enabled for slot #%d\n",
slot_p->hs_phy_slot_num);
return (DDI_SUCCESS);
}
