/* * PCI Express Hot Plug Controller Driver * * Copyright (C) 1995,2001 Compaq Computer Corporation * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2001 IBM Corp. * Copyright (C) 2003-2004 Intel Corporation * * All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at * your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * Send feedback to , * */ #ifndef _PCIEHP_H #define _PCIEHP_H #include #include #include #include #include /* signal_pending() */ #include #include #include #define MY_NAME "pciehp" extern bool pciehp_poll_mode; extern int pciehp_poll_time; extern bool pciehp_debug; #define dbg(format, arg...) \ do { \ if (pciehp_debug) \ printk(KERN_DEBUG "%s: " format, MY_NAME, ## arg); \ } while (0) #define err(format, arg...) \ printk(KERN_ERR "%s: " format, MY_NAME, ## arg) #define info(format, arg...) \ printk(KERN_INFO "%s: " format, MY_NAME, ## arg) #define warn(format, arg...) \ printk(KERN_WARNING "%s: " format, MY_NAME, ## arg) #define ctrl_dbg(ctrl, format, arg...) \ do { \ if (pciehp_debug) \ dev_printk(KERN_DEBUG, &ctrl->pcie->device, \ format, ## arg); \ } while (0) #define ctrl_err(ctrl, format, arg...) \ dev_err(&ctrl->pcie->device, format, ## arg) #define ctrl_info(ctrl, format, arg...) \ dev_info(&ctrl->pcie->device, format, ## arg) #define ctrl_warn(ctrl, format, arg...) \ dev_warn(&ctrl->pcie->device, format, ## arg) #define SLOT_NAME_SIZE 10 struct slot { u8 state; struct controller *ctrl; struct hotplug_slot *hotplug_slot; struct delayed_work work; /* work for button event */ struct mutex lock; struct mutex hotplug_lock; struct workqueue_struct *wq; }; struct event_info { u32 event_type; struct slot *p_slot; struct work_struct work; }; struct controller { struct mutex ctrl_lock; /* controller lock */ struct pcie_device *pcie; /* PCI Express port service */ struct slot *slot; wait_queue_head_t queue; /* sleep & wake process */ u32 slot_cap; u16 slot_ctrl; struct timer_list poll_timer; unsigned long cmd_started; /* jiffies */ unsigned int cmd_busy:1; unsigned int link_active_reporting:1; unsigned int notification_enabled:1; unsigned int power_fault_detected; }; #define INT_PRESENCE_ON 1 #define INT_PRESENCE_OFF 2 #define INT_POWER_FAULT 3 #define INT_BUTTON_PRESS 4 #define INT_LINK_UP 5 #define INT_LINK_DOWN 6 #define STATIC_STATE 0 #define BLINKINGON_STATE 1 #define BLINKINGOFF_STATE 2 #define POWERON_STATE 3 #define POWEROFF_STATE 4 #define ATTN_BUTTN(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_ABP) #define POWER_CTRL(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_PCP) #define MRL_SENS(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_MRLSP) #define ATTN_LED(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_AIP) #define PWR_LED(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_PIP) #define HP_SUPR_RM(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_HPS) #define EMI(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_EIP) #define NO_CMD_CMPL(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_NCCS) #define PSN(ctrl) (((ctrl)->slot_cap & PCI_EXP_SLTCAP_PSN) >> 19) int pciehp_sysfs_enable_slot(struct slot *slot); int pciehp_sysfs_disable_slot(struct slot *slot); void pciehp_queue_interrupt_event(struct slot *slot, u32 event_type); int pciehp_configure_device(struct slot *p_slot); int pciehp_unconfigure_device(struct slot *p_slot); void pciehp_queue_pushbutton_work(struct work_struct *work); struct controller *pcie_init(struct pcie_device *dev); int pcie_init_notification(struct controller *ctrl); int pciehp_enable_slot(struct slot *p_slot); int pciehp_disable_slot(struct slot *p_slot); void pcie_enable_notification(struct controller *ctrl); int pciehp_power_on_slot(struct slot *slot); void pciehp_power_off_slot(struct slot *slot); void pciehp_get_power_status(struct slot *slot, u8 *status); void pciehp_get_attention_status(struct slot *slot, u8 *status); void pciehp_set_attention_status(struct slot *slot, u8 status); void pciehp_get_latch_status(struct slot *slot, u8 *status); void pciehp_get_adapter_status(struct slot *slot, u8 *status); int pciehp_query_power_fault(struct slot *slot); void pciehp_green_led_on(struct slot *slot); void pciehp_green_led_off(struct slot *slot); void pciehp_green_led_blink(struct slot *slot); int pciehp_check_link_status(struct controller *ctrl); bool pciehp_check_link_active(struct controller *ctrl); void pciehp_release_ctrl(struct controller *ctrl); int pciehp_reset_slot(struct slot *slot, int probe); int pciehp_set_raw_indicator_status(struct hotplug_slot *h_slot, u8 status); int pciehp_get_raw_indicator_status(struct hotplug_slot *h_slot, u8 *status); static inline const char *slot_name(struct slot *slot) { return hotplug_slot_name(slot->hotplug_slot); } #endif /* _PCIEHP_H */