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kernel/linux-imx6_3.14.28/drivers/pci/hotplug/rpaphp.h 2.91 KB
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  /*
   * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
   *
   * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com>
   *
   * 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 <lxie@us.ibm.com>,
   *
   */
  
  #ifndef _PPC64PHP_H
  #define _PPC64PHP_H
  
  #include <linux/pci.h>
  #include <linux/pci_hotplug.h>
  
  #define DR_INDICATOR 9002
  #define DR_ENTITY_SENSE 9003
  
  #define POWER_ON	100
  #define POWER_OFF	0
  
  #define LED_OFF		0
  #define LED_ON		1	/* continuous on */
  #define LED_ID		2	/* slow blinking */
  #define LED_ACTION	3	/* fast blinking */
  
  /* Sensor values from rtas_get-sensor */
  #define EMPTY           0	/* No card in slot */
  #define PRESENT         1	/* Card in slot */
  
  #define MY_NAME "rpaphp"
  extern bool rpaphp_debug;
  #define dbg(format, arg...)					\
  	do {							\
  		if (rpaphp_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)
  
  /* slot states */
  
  #define	NOT_VALID	3
  #define	NOT_CONFIGURED	2
  #define	CONFIGURED	1
  #define	EMPTY		0
  
  /*
   * struct slot - slot information for each *physical* slot
   */
  struct slot {
  	struct list_head rpaphp_slot_list;
  	int state;
  	u32 index;
  	u32 type;
  	u32 power_domain;
  	char *name;
  	struct device_node *dn;
  	struct pci_bus *bus;
  	struct list_head *pci_devs;
  	struct hotplug_slot *hotplug_slot;
  };
  
  extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
  extern struct list_head rpaphp_slot_head;
  
  /* function prototypes */
  
  /* rpaphp_pci.c */
  int rpaphp_enable_slot(struct slot *slot);
  int rpaphp_get_sensor_state(struct slot *slot, int *state);
  
  /* rpaphp_core.c */
  int rpaphp_add_slot(struct device_node *dn);
  int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
  		char **drc_name, char **drc_type, int *drc_power_domain);
  
  /* rpaphp_slot.c */
  void dealloc_slot_struct(struct slot *slot);
  struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
  int rpaphp_register_slot(struct slot *slot);
  int rpaphp_deregister_slot(struct slot *slot);
  
  #endif				/* _PPC64PHP_H */