11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Standard Hot Plug Controller Driver 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 1995,2001 Compaq Computer Corporation 51da177e4SLinus Torvalds * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) 61da177e4SLinus Torvalds * Copyright (C) 2001 IBM Corp. 71da177e4SLinus Torvalds * Copyright (C) 2003-2004 Intel Corporation 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * All rights reserved. 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 121da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 131da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or (at 141da177e4SLinus Torvalds * your option) any later version. 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, but 171da177e4SLinus Torvalds * WITHOUT ANY WARRANTY; without even the implied warranty of 181da177e4SLinus Torvalds * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 191da177e4SLinus Torvalds * NON INFRINGEMENT. See the GNU General Public License for more 201da177e4SLinus Torvalds * details. 211da177e4SLinus Torvalds * 221da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 231da177e4SLinus Torvalds * along with this program; if not, write to the Free Software 241da177e4SLinus Torvalds * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 251da177e4SLinus Torvalds * 268cf4c195SKristen Accardi * Send feedback to <greg@kroah.com>, <kristen.c.accardi@intel.com> 271da177e4SLinus Torvalds * 281da177e4SLinus Torvalds */ 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds #include <linux/module.h> 311da177e4SLinus Torvalds #include <linux/moduleparam.h> 321da177e4SLinus Torvalds #include <linux/kernel.h> 331da177e4SLinus Torvalds #include <linux/types.h> 341da177e4SLinus Torvalds #include <linux/pci.h> 35f7391f53SKenji Kaneshige #include <linux/workqueue.h> 361da177e4SLinus Torvalds #include "shpchp.h" 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds /* Global variables */ 391da177e4SLinus Torvalds int shpchp_debug; 401da177e4SLinus Torvalds int shpchp_poll_mode; 411da177e4SLinus Torvalds int shpchp_poll_time; 42552fe04aSAdrian Bunk static int shpchp_slot_with_bus; 43f7391f53SKenji Kaneshige struct workqueue_struct *shpchp_wq; 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds #define DRIVER_VERSION "0.4" 461da177e4SLinus Torvalds #define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>" 471da177e4SLinus Torvalds #define DRIVER_DESC "Standard Hot Plug PCI Controller Driver" 481da177e4SLinus Torvalds 491da177e4SLinus Torvalds MODULE_AUTHOR(DRIVER_AUTHOR); 501da177e4SLinus Torvalds MODULE_DESCRIPTION(DRIVER_DESC); 511da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 521da177e4SLinus Torvalds 531da177e4SLinus Torvalds module_param(shpchp_debug, bool, 0644); 541da177e4SLinus Torvalds module_param(shpchp_poll_mode, bool, 0644); 551da177e4SLinus Torvalds module_param(shpchp_poll_time, int, 0644); 56ef0ff95fSKenji Kaneshige module_param(shpchp_slot_with_bus, bool, 0644); 571da177e4SLinus Torvalds MODULE_PARM_DESC(shpchp_debug, "Debugging mode enabled or not"); 581da177e4SLinus Torvalds MODULE_PARM_DESC(shpchp_poll_mode, "Using polling mechanism for hot-plug events or not"); 591da177e4SLinus Torvalds MODULE_PARM_DESC(shpchp_poll_time, "Polling mechanism frequency, in seconds"); 60ef0ff95fSKenji Kaneshige MODULE_PARM_DESC(shpchp_slot_with_bus, "Use bus number in the slot name"); 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds #define SHPC_MODULE_NAME "shpchp" 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds static int set_attention_status (struct hotplug_slot *slot, u8 value); 651da177e4SLinus Torvalds static int enable_slot (struct hotplug_slot *slot); 661da177e4SLinus Torvalds static int disable_slot (struct hotplug_slot *slot); 671da177e4SLinus Torvalds static int get_power_status (struct hotplug_slot *slot, u8 *value); 681da177e4SLinus Torvalds static int get_attention_status (struct hotplug_slot *slot, u8 *value); 691da177e4SLinus Torvalds static int get_latch_status (struct hotplug_slot *slot, u8 *value); 701da177e4SLinus Torvalds static int get_adapter_status (struct hotplug_slot *slot, u8 *value); 7181f15442SKenji Kaneshige static int get_address (struct hotplug_slot *slot, u32 *value); 721da177e4SLinus Torvalds static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); 731da177e4SLinus Torvalds static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds static struct hotplug_slot_ops shpchp_hotplug_slot_ops = { 761da177e4SLinus Torvalds .owner = THIS_MODULE, 771da177e4SLinus Torvalds .set_attention_status = set_attention_status, 781da177e4SLinus Torvalds .enable_slot = enable_slot, 791da177e4SLinus Torvalds .disable_slot = disable_slot, 801da177e4SLinus Torvalds .get_power_status = get_power_status, 811da177e4SLinus Torvalds .get_attention_status = get_attention_status, 821da177e4SLinus Torvalds .get_latch_status = get_latch_status, 831da177e4SLinus Torvalds .get_adapter_status = get_adapter_status, 8481f15442SKenji Kaneshige .get_address = get_address, 851da177e4SLinus Torvalds .get_max_bus_speed = get_max_bus_speed, 861da177e4SLinus Torvalds .get_cur_bus_speed = get_cur_bus_speed, 871da177e4SLinus Torvalds }; 881da177e4SLinus Torvalds 891da177e4SLinus Torvalds /** 901da177e4SLinus Torvalds * release_slot - free up the memory used by a slot 911da177e4SLinus Torvalds * @hotplug_slot: slot to free 921da177e4SLinus Torvalds */ 931da177e4SLinus Torvalds static void release_slot(struct hotplug_slot *hotplug_slot) 941da177e4SLinus Torvalds { 95ee17fd93SDely Sy struct slot *slot = hotplug_slot->private; 961da177e4SLinus Torvalds 9766bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 981da177e4SLinus Torvalds 991da177e4SLinus Torvalds kfree(slot->hotplug_slot->info); 1001da177e4SLinus Torvalds kfree(slot->hotplug_slot); 1011da177e4SLinus Torvalds kfree(slot); 1021da177e4SLinus Torvalds } 1031da177e4SLinus Torvalds 104926030f6SKenji Kaneshige static void make_slot_name(struct slot *slot) 105926030f6SKenji Kaneshige { 106ef0ff95fSKenji Kaneshige if (shpchp_slot_with_bus) 107926030f6SKenji Kaneshige snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d", 108926030f6SKenji Kaneshige slot->bus, slot->number); 109ef0ff95fSKenji Kaneshige else 110ef0ff95fSKenji Kaneshige snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%d", 111ef0ff95fSKenji Kaneshige slot->number); 112926030f6SKenji Kaneshige } 113926030f6SKenji Kaneshige 1141da177e4SLinus Torvalds static int init_slots(struct controller *ctrl) 1151da177e4SLinus Torvalds { 116926030f6SKenji Kaneshige struct slot *slot; 117926030f6SKenji Kaneshige struct hotplug_slot *hotplug_slot; 118926030f6SKenji Kaneshige struct hotplug_slot_info *info; 119926030f6SKenji Kaneshige int retval = -ENOMEM; 120926030f6SKenji Kaneshige int i; 1211da177e4SLinus Torvalds 122926030f6SKenji Kaneshige for (i = 0; i < ctrl->num_slots; i++) { 12357c95c0dSKenji Kaneshige slot = kzalloc(sizeof(*slot), GFP_KERNEL); 124926030f6SKenji Kaneshige if (!slot) 1251da177e4SLinus Torvalds goto error; 1261da177e4SLinus Torvalds 12757c95c0dSKenji Kaneshige hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL); 128926030f6SKenji Kaneshige if (!hotplug_slot) 1291da177e4SLinus Torvalds goto error_slot; 130926030f6SKenji Kaneshige slot->hotplug_slot = hotplug_slot; 1311da177e4SLinus Torvalds 13257c95c0dSKenji Kaneshige info = kzalloc(sizeof(*info), GFP_KERNEL); 133926030f6SKenji Kaneshige if (!info) 1341da177e4SLinus Torvalds goto error_hpslot; 135926030f6SKenji Kaneshige hotplug_slot->info = info; 1361da177e4SLinus Torvalds 137bbe779dbSKenji Kaneshige hotplug_slot->name = slot->name; 138926030f6SKenji Kaneshige 139926030f6SKenji Kaneshige slot->hp_slot = i; 140926030f6SKenji Kaneshige slot->ctrl = ctrl; 141227b84c7SKenji Kaneshige slot->bus = ctrl->pci_dev->subordinate->number; 142926030f6SKenji Kaneshige slot->device = ctrl->slot_device_offset + i; 143926030f6SKenji Kaneshige slot->hpc_ops = ctrl->hpc_ops; 1446f39be2eSKenji Kaneshige slot->number = ctrl->first_slot + (ctrl->slot_num_inc * i); 145a246fa4eSKenji Kaneshige mutex_init(&slot->lock); 146e325e1f0SKristen Carlson Accardi INIT_DELAYED_WORK(&slot->work, shpchp_queue_pushbutton_work); 1471da177e4SLinus Torvalds 1481da177e4SLinus Torvalds /* register this slot with the hotplug pci core */ 149926030f6SKenji Kaneshige hotplug_slot->private = slot; 150926030f6SKenji Kaneshige hotplug_slot->release = &release_slot; 151926030f6SKenji Kaneshige make_slot_name(slot); 152926030f6SKenji Kaneshige hotplug_slot->ops = &shpchp_hotplug_slot_ops; 1531da177e4SLinus Torvalds 154926030f6SKenji Kaneshige get_power_status(hotplug_slot, &info->power_status); 155926030f6SKenji Kaneshige get_attention_status(hotplug_slot, &info->attention_status); 156926030f6SKenji Kaneshige get_latch_status(hotplug_slot, &info->latch_status); 157926030f6SKenji Kaneshige get_adapter_status(hotplug_slot, &info->adapter_status); 1581da177e4SLinus Torvalds 159926030f6SKenji Kaneshige dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " 160926030f6SKenji Kaneshige "slot_device_offset=%x\n", slot->bus, slot->device, 161926030f6SKenji Kaneshige slot->hp_slot, slot->number, ctrl->slot_device_offset); 162926030f6SKenji Kaneshige retval = pci_hp_register(slot->hotplug_slot); 163926030f6SKenji Kaneshige if (retval) { 164926030f6SKenji Kaneshige err("pci_hp_register failed with error %d\n", retval); 165b3bd307cSKenji Kaneshige if (retval == -EEXIST) 166b3bd307cSKenji Kaneshige err("Failed to register slot because of name " 167b3bd307cSKenji Kaneshige "collision. Try \'shpchp_slot_with_bus\' " 168b3bd307cSKenji Kaneshige "module option.\n"); 169bbe779dbSKenji Kaneshige goto error_info; 1701da177e4SLinus Torvalds } 1711da177e4SLinus Torvalds 1725b1a960dSKenji Kaneshige list_add(&slot->slot_list, &ctrl->slot_list); 1731da177e4SLinus Torvalds } 1741da177e4SLinus Torvalds 1751da177e4SLinus Torvalds return 0; 1761da177e4SLinus Torvalds error_info: 177926030f6SKenji Kaneshige kfree(info); 1781da177e4SLinus Torvalds error_hpslot: 179926030f6SKenji Kaneshige kfree(hotplug_slot); 1801da177e4SLinus Torvalds error_slot: 181926030f6SKenji Kaneshige kfree(slot); 1821da177e4SLinus Torvalds error: 183926030f6SKenji Kaneshige return retval; 1841da177e4SLinus Torvalds } 1851da177e4SLinus Torvalds 186f7391f53SKenji Kaneshige void cleanup_slots(struct controller *ctrl) 1871da177e4SLinus Torvalds { 1885b1a960dSKenji Kaneshige struct list_head *tmp; 1895b1a960dSKenji Kaneshige struct list_head *next; 1905b1a960dSKenji Kaneshige struct slot *slot; 1911da177e4SLinus Torvalds 1925b1a960dSKenji Kaneshige list_for_each_safe(tmp, next, &ctrl->slot_list) { 1935b1a960dSKenji Kaneshige slot = list_entry(tmp, struct slot, slot_list); 1945b1a960dSKenji Kaneshige list_del(&slot->slot_list); 195f7391f53SKenji Kaneshige cancel_delayed_work(&slot->work); 196a246fa4eSKenji Kaneshige flush_scheduled_work(); 197f7391f53SKenji Kaneshige flush_workqueue(shpchp_wq); 1985b1a960dSKenji Kaneshige pci_hp_deregister(slot->hotplug_slot); 1991da177e4SLinus Torvalds } 2001da177e4SLinus Torvalds } 2011da177e4SLinus Torvalds 2021da177e4SLinus Torvalds /* 2031da177e4SLinus Torvalds * set_attention_status - Turns the Amber LED for a slot on, off or blink 2041da177e4SLinus Torvalds */ 2051da177e4SLinus Torvalds static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status) 2061da177e4SLinus Torvalds { 2078352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2081da177e4SLinus Torvalds 20966bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 2101da177e4SLinus Torvalds 2111da177e4SLinus Torvalds hotplug_slot->info->attention_status = status; 2121da177e4SLinus Torvalds slot->hpc_ops->set_attention_status(slot, status); 2131da177e4SLinus Torvalds 2141da177e4SLinus Torvalds return 0; 2151da177e4SLinus Torvalds } 2161da177e4SLinus Torvalds 2171da177e4SLinus Torvalds static int enable_slot (struct hotplug_slot *hotplug_slot) 2181da177e4SLinus Torvalds { 2198352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2201da177e4SLinus Torvalds 22166bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 2221da177e4SLinus Torvalds 223a246fa4eSKenji Kaneshige return shpchp_sysfs_enable_slot(slot); 2241da177e4SLinus Torvalds } 2251da177e4SLinus Torvalds 2261da177e4SLinus Torvalds static int disable_slot (struct hotplug_slot *hotplug_slot) 2271da177e4SLinus Torvalds { 2288352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2291da177e4SLinus Torvalds 23066bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 2311da177e4SLinus Torvalds 232a246fa4eSKenji Kaneshige return shpchp_sysfs_disable_slot(slot); 2331da177e4SLinus Torvalds } 2341da177e4SLinus Torvalds 2351da177e4SLinus Torvalds static int get_power_status (struct hotplug_slot *hotplug_slot, u8 *value) 2361da177e4SLinus Torvalds { 2378352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2381da177e4SLinus Torvalds int retval; 2391da177e4SLinus Torvalds 24066bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds retval = slot->hpc_ops->get_power_status(slot, value); 2431da177e4SLinus Torvalds if (retval < 0) 2441da177e4SLinus Torvalds *value = hotplug_slot->info->power_status; 2451da177e4SLinus Torvalds 2461da177e4SLinus Torvalds return 0; 2471da177e4SLinus Torvalds } 2481da177e4SLinus Torvalds 2491da177e4SLinus Torvalds static int get_attention_status (struct hotplug_slot *hotplug_slot, u8 *value) 2501da177e4SLinus Torvalds { 2518352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2521da177e4SLinus Torvalds int retval; 2531da177e4SLinus Torvalds 25466bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 2551da177e4SLinus Torvalds 2561da177e4SLinus Torvalds retval = slot->hpc_ops->get_attention_status(slot, value); 2571da177e4SLinus Torvalds if (retval < 0) 2581da177e4SLinus Torvalds *value = hotplug_slot->info->attention_status; 2591da177e4SLinus Torvalds 2601da177e4SLinus Torvalds return 0; 2611da177e4SLinus Torvalds } 2621da177e4SLinus Torvalds 2631da177e4SLinus Torvalds static int get_latch_status (struct hotplug_slot *hotplug_slot, u8 *value) 2641da177e4SLinus Torvalds { 2658352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2661da177e4SLinus Torvalds int retval; 2671da177e4SLinus Torvalds 26866bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 2691da177e4SLinus Torvalds 2701da177e4SLinus Torvalds retval = slot->hpc_ops->get_latch_status(slot, value); 2711da177e4SLinus Torvalds if (retval < 0) 2721da177e4SLinus Torvalds *value = hotplug_slot->info->latch_status; 2731da177e4SLinus Torvalds 2741da177e4SLinus Torvalds return 0; 2751da177e4SLinus Torvalds } 2761da177e4SLinus Torvalds 2771da177e4SLinus Torvalds static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value) 2781da177e4SLinus Torvalds { 2798352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2801da177e4SLinus Torvalds int retval; 2811da177e4SLinus Torvalds 28266bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 2831da177e4SLinus Torvalds 2841da177e4SLinus Torvalds retval = slot->hpc_ops->get_adapter_status(slot, value); 2851da177e4SLinus Torvalds if (retval < 0) 2861da177e4SLinus Torvalds *value = hotplug_slot->info->adapter_status; 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds return 0; 2891da177e4SLinus Torvalds } 2901da177e4SLinus Torvalds 29181f15442SKenji Kaneshige static int get_address (struct hotplug_slot *hotplug_slot, u32 *value) 29281f15442SKenji Kaneshige { 2938352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 29481f15442SKenji Kaneshige struct pci_bus *bus = slot->ctrl->pci_dev->subordinate; 29581f15442SKenji Kaneshige 29666bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 29781f15442SKenji Kaneshige 29881f15442SKenji Kaneshige *value = (pci_domain_nr(bus) << 16) | (slot->bus << 8) | slot->device; 29981f15442SKenji Kaneshige 30081f15442SKenji Kaneshige return 0; 30181f15442SKenji Kaneshige } 30281f15442SKenji Kaneshige 3031da177e4SLinus Torvalds static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 3041da177e4SLinus Torvalds { 3058352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 3061da177e4SLinus Torvalds int retval; 3071da177e4SLinus Torvalds 30866bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 3091da177e4SLinus Torvalds 3101da177e4SLinus Torvalds retval = slot->hpc_ops->get_max_bus_speed(slot, value); 3111da177e4SLinus Torvalds if (retval < 0) 3121da177e4SLinus Torvalds *value = PCI_SPEED_UNKNOWN; 3131da177e4SLinus Torvalds 3141da177e4SLinus Torvalds return 0; 3151da177e4SLinus Torvalds } 3161da177e4SLinus Torvalds 3171da177e4SLinus Torvalds static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 3181da177e4SLinus Torvalds { 3198352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 3201da177e4SLinus Torvalds int retval; 3211da177e4SLinus Torvalds 32266bef8c0SHarvey Harrison dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); 3231da177e4SLinus Torvalds 3241da177e4SLinus Torvalds retval = slot->hpc_ops->get_cur_bus_speed(slot, value); 3251da177e4SLinus Torvalds if (retval < 0) 3261da177e4SLinus Torvalds *value = PCI_SPEED_UNKNOWN; 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds return 0; 3291da177e4SLinus Torvalds } 3301da177e4SLinus Torvalds 3311410dc1cSrajesh.shah@intel.com static int is_shpc_capable(struct pci_dev *dev) 3321410dc1cSrajesh.shah@intel.com { 3331410dc1cSrajesh.shah@intel.com if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device == 3341410dc1cSrajesh.shah@intel.com PCI_DEVICE_ID_AMD_GOLAM_7450)) 3351410dc1cSrajesh.shah@intel.com return 1; 336ac9c052dSKenji Kaneshige if (!pci_find_capability(dev, PCI_CAP_ID_SHPC)) 3371410dc1cSrajesh.shah@intel.com return 0; 338ac9c052dSKenji Kaneshige if (get_hp_hw_control_from_firmware(dev)) 339ac9c052dSKenji Kaneshige return 0; 340ac9c052dSKenji Kaneshige return 1; 3411410dc1cSrajesh.shah@intel.com } 3421410dc1cSrajesh.shah@intel.com 3431da177e4SLinus Torvalds static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 3441da177e4SLinus Torvalds { 3451da177e4SLinus Torvalds int rc; 3461da177e4SLinus Torvalds struct controller *ctrl; 3471da177e4SLinus Torvalds 3481410dc1cSrajesh.shah@intel.com if (!is_shpc_capable(pdev)) 3491410dc1cSrajesh.shah@intel.com return -ENODEV; 3501410dc1cSrajesh.shah@intel.com 35157c95c0dSKenji Kaneshige ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL); 3521da177e4SLinus Torvalds if (!ctrl) { 35366bef8c0SHarvey Harrison err("%s : out of memory\n", __func__); 3541da177e4SLinus Torvalds goto err_out_none; 3551da177e4SLinus Torvalds } 3565b1a960dSKenji Kaneshige INIT_LIST_HEAD(&ctrl->slot_list); 3571da177e4SLinus Torvalds 358ee138334Srajesh.shah@intel.com rc = shpc_init(ctrl, pdev); 3591da177e4SLinus Torvalds if (rc) { 360dfcd5f68SKenji Kaneshige dbg("%s: controller initialization failed\n", 361dfcd5f68SKenji Kaneshige SHPC_MODULE_NAME); 3621da177e4SLinus Torvalds goto err_out_free_ctrl; 3631da177e4SLinus Torvalds } 3641da177e4SLinus Torvalds 3651da177e4SLinus Torvalds pci_set_drvdata(pdev, ctrl); 3661da177e4SLinus Torvalds 3671da177e4SLinus Torvalds /* Setup the slot information structures */ 3681da177e4SLinus Torvalds rc = init_slots(ctrl); 3691da177e4SLinus Torvalds if (rc) { 3708352e04eSKenji Kaneshige err("%s: slot initialization failed\n", SHPC_MODULE_NAME); 371f7391f53SKenji Kaneshige goto err_out_release_ctlr; 3721da177e4SLinus Torvalds } 3731da177e4SLinus Torvalds 374e1b95dc6SGreg Kroah-Hartman rc = shpchp_create_ctrl_files(ctrl); 375e1b95dc6SGreg Kroah-Hartman if (rc) 376e1b95dc6SGreg Kroah-Hartman goto err_cleanup_slots; 3771da177e4SLinus Torvalds 3781da177e4SLinus Torvalds return 0; 3791da177e4SLinus Torvalds 380e1b95dc6SGreg Kroah-Hartman err_cleanup_slots: 381e1b95dc6SGreg Kroah-Hartman cleanup_slots(ctrl); 382f7391f53SKenji Kaneshige err_out_release_ctlr: 3831da177e4SLinus Torvalds ctrl->hpc_ops->release_ctlr(ctrl); 3841da177e4SLinus Torvalds err_out_free_ctrl: 3851da177e4SLinus Torvalds kfree(ctrl); 3861da177e4SLinus Torvalds err_out_none: 3871da177e4SLinus Torvalds return -ENODEV; 3881da177e4SLinus Torvalds } 3891da177e4SLinus Torvalds 390e6b82b13SKenji Kaneshige static void shpc_remove(struct pci_dev *dev) 3911da177e4SLinus Torvalds { 392e6b82b13SKenji Kaneshige struct controller *ctrl = pci_get_drvdata(dev); 3931da177e4SLinus Torvalds 394c2608a11Srajesh.shah@intel.com shpchp_remove_ctrl_files(ctrl); 3951da177e4SLinus Torvalds ctrl->hpc_ops->release_ctlr(ctrl); 396a4534560SKenji Kaneshige kfree(ctrl); 3971da177e4SLinus Torvalds } 3981da177e4SLinus Torvalds 3991da177e4SLinus Torvalds static struct pci_device_id shpcd_pci_tbl[] = { 400dfcd5f68SKenji Kaneshige {PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0)}, 4011da177e4SLinus Torvalds { /* end: all zeroes */ } 4021da177e4SLinus Torvalds }; 4031da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, shpcd_pci_tbl); 4041da177e4SLinus Torvalds 4051da177e4SLinus Torvalds static struct pci_driver shpc_driver = { 4061da177e4SLinus Torvalds .name = SHPC_MODULE_NAME, 4071da177e4SLinus Torvalds .id_table = shpcd_pci_tbl, 4081da177e4SLinus Torvalds .probe = shpc_probe, 409e6b82b13SKenji Kaneshige .remove = shpc_remove, 4101da177e4SLinus Torvalds }; 4111da177e4SLinus Torvalds 4121da177e4SLinus Torvalds static int __init shpcd_init(void) 4131da177e4SLinus Torvalds { 4141da177e4SLinus Torvalds int retval = 0; 4151da177e4SLinus Torvalds 4161da177e4SLinus Torvalds retval = pci_register_driver(&shpc_driver); 41766bef8c0SHarvey Harrison dbg("%s: pci_register_driver = %d\n", __func__, retval); 4181da177e4SLinus Torvalds info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); 4191da177e4SLinus Torvalds return retval; 4201da177e4SLinus Torvalds } 4211da177e4SLinus Torvalds 4221da177e4SLinus Torvalds static void __exit shpcd_cleanup(void) 4231da177e4SLinus Torvalds { 4241da177e4SLinus Torvalds dbg("unload_shpchpd()\n"); 4251da177e4SLinus Torvalds pci_unregister_driver(&shpc_driver); 4261da177e4SLinus Torvalds info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n"); 4271da177e4SLinus Torvalds } 4281da177e4SLinus Torvalds 4291da177e4SLinus Torvalds module_init(shpcd_init); 4301da177e4SLinus Torvalds module_exit(shpcd_cleanup); 431