LXR linux/drivers/pci/hotplug/cpci

   1/*
   2 * CompactPCI Hot Plug Core Functions
   3 *
   4 * Copyright (C) 2002 SOMA Networks, Inc.
   5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
   6 * Copyright (C) 2001 IBM Corp.
   7 *
   8 * All rights reserved.
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License as published by
  12 * the Free Software Foundation; either version 2 of the License, or (at
  13 * your option) any later version.
  14 *
  15 * This program is distributed in the hope that it will be useful, but
  16 * WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  18 * NON INFRINGEMENT.  See the GNU General Public License for more
  19 * details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24 *
  25 * Send feedback to <scottm@somanetworks.com>
  26 */
  27
  28#ifndef _CPCI_HOTPLUG_H
  29#define _CPCI_HOTPLUG_H
  30
  31#include <linux/types.h>
  32#include <linux/pci.h>
  33#include <linux/pci_hotplug.h>
  34
  35/* PICMG 2.1 R2.0 HS CSR bits: */
  36#define HS_CSR_INS      0x0080
  37#define HS_CSR_EXT      0x0040
  38#define HS_CSR_PI       0x0030
  39#define HS_CSR_LOO      0x0008
  40#define HS_CSR_PIE      0x0004
  41#define HS_CSR_EIM      0x0002
  42#define HS_CSR_DHA      0x0001
  43
  44struct slot {
  45        u8 number;
  46        unsigned int devfn;
  47        struct pci_bus *bus;
  48        struct pci_dev *dev;
  49        unsigned int extracting;
  50        struct hotplug_slot *hotplug_slot;
  51        struct list_head slot_list;
  52};
  53
  54struct cpci_hp_controller_ops {
  55        int (*query_enum)(void);
  56        int (*enable_irq)(void);
  57        int (*disable_irq)(void);
  58        int (*check_irq)(void *dev_id);
  59        int (*hardware_test)(struct slot *slot, u32 value);
  60        u8  (*get_power)(struct slot *slot);
  61        int (*set_power)(struct slot *slot, int value);
  62};
  63
  64struct cpci_hp_controller {
  65        unsigned int irq;
  66        unsigned long irq_flags;
  67        char *devname;
  68        void *dev_id;
  69        char *name;
  70        struct cpci_hp_controller_ops *ops;
  71};
  72
  73static inline const char *slot_name(struct slot *slot)
  74{
  75        return hotplug_slot_name(slot->hotplug_slot);
  76}
  77
  78int cpci_hp_register_controller(struct cpci_hp_controller *controller);
  79int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
  80int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
  81int cpci_hp_unregister_bus(struct pci_bus *bus);
  82int cpci_hp_start(void);
  83int cpci_hp_stop(void);
  84
  85/*
  86 * Internal function prototypes, these functions should not be used by
  87 * board/chassis drivers.
  88 */
  89u8 cpci_get_attention_status(struct slot *slot);
  90u8 cpci_get_latch_status(struct slot *slot);
  91u8 cpci_get_adapter_status(struct slot *slot);
  92u16 cpci_get_hs_csr(struct slot *slot);
  93int cpci_set_attention_status(struct slot *slot, int status);
  94int cpci_check_and_clear_ins(struct slot *slot);
  95int cpci_check_ext(struct slot *slot);
  96int cpci_clear_ext(struct slot *slot);
  97int cpci_led_on(struct slot *slot);
  98int cpci_led_off(struct slot *slot);
  99int cpci_configure_slot(struct slot *slot);
 100int cpci_unconfigure_slot(struct slot *slot);
 101
 102#ifdef CONFIG_HOTPLUG_PCI_CPCI
 103int cpci_hotplug_init(int debug);
 104void cpci_hotplug_exit(void);
 105#else
 106static inline int cpci_hotplug_init(int debug) { return 0; }
 107static inline void cpci_hotplug_exit(void) { }
 108#endif
 109
 110#endif  /* _CPCI_HOTPLUG_H */
 111