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; 42f7391f53SKenji Kaneshige struct workqueue_struct *shpchp_wq; 431da177e4SLinus Torvalds 441da177e4SLinus Torvalds #define DRIVER_VERSION "0.4" 451da177e4SLinus Torvalds #define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>" 461da177e4SLinus Torvalds #define DRIVER_DESC "Standard Hot Plug PCI Controller Driver" 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds MODULE_AUTHOR(DRIVER_AUTHOR); 491da177e4SLinus Torvalds MODULE_DESCRIPTION(DRIVER_DESC); 501da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds module_param(shpchp_debug, bool, 0644); 531da177e4SLinus Torvalds module_param(shpchp_poll_mode, bool, 0644); 541da177e4SLinus Torvalds module_param(shpchp_poll_time, int, 0644); 551da177e4SLinus Torvalds MODULE_PARM_DESC(shpchp_debug, "Debugging mode enabled or not"); 561da177e4SLinus Torvalds MODULE_PARM_DESC(shpchp_poll_mode, "Using polling mechanism for hot-plug events or not"); 571da177e4SLinus Torvalds MODULE_PARM_DESC(shpchp_poll_time, "Polling mechanism frequency, in seconds"); 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds #define SHPC_MODULE_NAME "shpchp" 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds static int set_attention_status (struct hotplug_slot *slot, u8 value); 621da177e4SLinus Torvalds static int enable_slot (struct hotplug_slot *slot); 631da177e4SLinus Torvalds static int disable_slot (struct hotplug_slot *slot); 641da177e4SLinus Torvalds static int get_power_status (struct hotplug_slot *slot, u8 *value); 651da177e4SLinus Torvalds static int get_attention_status (struct hotplug_slot *slot, u8 *value); 661da177e4SLinus Torvalds static int get_latch_status (struct hotplug_slot *slot, u8 *value); 671da177e4SLinus Torvalds static int get_adapter_status (struct hotplug_slot *slot, u8 *value); 6881f15442SKenji Kaneshige static int get_address (struct hotplug_slot *slot, u32 *value); 691da177e4SLinus Torvalds static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); 701da177e4SLinus Torvalds static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds static struct hotplug_slot_ops shpchp_hotplug_slot_ops = { 731da177e4SLinus Torvalds .owner = THIS_MODULE, 741da177e4SLinus Torvalds .set_attention_status = set_attention_status, 751da177e4SLinus Torvalds .enable_slot = enable_slot, 761da177e4SLinus Torvalds .disable_slot = disable_slot, 771da177e4SLinus Torvalds .get_power_status = get_power_status, 781da177e4SLinus Torvalds .get_attention_status = get_attention_status, 791da177e4SLinus Torvalds .get_latch_status = get_latch_status, 801da177e4SLinus Torvalds .get_adapter_status = get_adapter_status, 8181f15442SKenji Kaneshige .get_address = get_address, 821da177e4SLinus Torvalds .get_max_bus_speed = get_max_bus_speed, 831da177e4SLinus Torvalds .get_cur_bus_speed = get_cur_bus_speed, 841da177e4SLinus Torvalds }; 851da177e4SLinus Torvalds 861da177e4SLinus Torvalds /** 871da177e4SLinus Torvalds * release_slot - free up the memory used by a slot 881da177e4SLinus Torvalds * @hotplug_slot: slot to free 891da177e4SLinus Torvalds */ 901da177e4SLinus Torvalds static void release_slot(struct hotplug_slot *hotplug_slot) 911da177e4SLinus Torvalds { 92ee17fd93SDely Sy struct slot *slot = hotplug_slot->private; 931da177e4SLinus Torvalds 941da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds kfree(slot->hotplug_slot->info); 971da177e4SLinus Torvalds kfree(slot->hotplug_slot); 981da177e4SLinus Torvalds kfree(slot); 991da177e4SLinus Torvalds } 1001da177e4SLinus Torvalds 101926030f6SKenji Kaneshige static void make_slot_name(struct slot *slot) 102926030f6SKenji Kaneshige { 103926030f6SKenji Kaneshige snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d", 104926030f6SKenji Kaneshige slot->bus, slot->number); 105926030f6SKenji Kaneshige } 106926030f6SKenji Kaneshige 1071da177e4SLinus Torvalds static int init_slots(struct controller *ctrl) 1081da177e4SLinus Torvalds { 109926030f6SKenji Kaneshige struct slot *slot; 110926030f6SKenji Kaneshige struct hotplug_slot *hotplug_slot; 111926030f6SKenji Kaneshige struct hotplug_slot_info *info; 112926030f6SKenji Kaneshige int retval = -ENOMEM; 113926030f6SKenji Kaneshige int i; 1141da177e4SLinus Torvalds 115926030f6SKenji Kaneshige for (i = 0; i < ctrl->num_slots; i++) { 11657c95c0dSKenji Kaneshige slot = kzalloc(sizeof(*slot), GFP_KERNEL); 117926030f6SKenji Kaneshige if (!slot) 1181da177e4SLinus Torvalds goto error; 1191da177e4SLinus Torvalds 12057c95c0dSKenji Kaneshige hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL); 121926030f6SKenji Kaneshige if (!hotplug_slot) 1221da177e4SLinus Torvalds goto error_slot; 123926030f6SKenji Kaneshige slot->hotplug_slot = hotplug_slot; 1241da177e4SLinus Torvalds 12557c95c0dSKenji Kaneshige info = kzalloc(sizeof(*info), GFP_KERNEL); 126926030f6SKenji Kaneshige if (!info) 1271da177e4SLinus Torvalds goto error_hpslot; 128926030f6SKenji Kaneshige hotplug_slot->info = info; 1291da177e4SLinus Torvalds 130bbe779dbSKenji Kaneshige hotplug_slot->name = slot->name; 131926030f6SKenji Kaneshige 132926030f6SKenji Kaneshige slot->hp_slot = i; 133926030f6SKenji Kaneshige slot->ctrl = ctrl; 134227b84c7SKenji Kaneshige slot->bus = ctrl->pci_dev->subordinate->number; 135926030f6SKenji Kaneshige slot->device = ctrl->slot_device_offset + i; 136926030f6SKenji Kaneshige slot->hpc_ops = ctrl->hpc_ops; 1376f39be2eSKenji Kaneshige slot->number = ctrl->first_slot + (ctrl->slot_num_inc * i); 138a246fa4eSKenji Kaneshige mutex_init(&slot->lock); 139e325e1f0SKristen Carlson Accardi INIT_DELAYED_WORK(&slot->work, shpchp_queue_pushbutton_work); 1401da177e4SLinus Torvalds 1411da177e4SLinus Torvalds /* register this slot with the hotplug pci core */ 142926030f6SKenji Kaneshige hotplug_slot->private = slot; 143926030f6SKenji Kaneshige hotplug_slot->release = &release_slot; 144926030f6SKenji Kaneshige make_slot_name(slot); 145926030f6SKenji Kaneshige hotplug_slot->ops = &shpchp_hotplug_slot_ops; 1461da177e4SLinus Torvalds 147926030f6SKenji Kaneshige get_power_status(hotplug_slot, &info->power_status); 148926030f6SKenji Kaneshige get_attention_status(hotplug_slot, &info->attention_status); 149926030f6SKenji Kaneshige get_latch_status(hotplug_slot, &info->latch_status); 150926030f6SKenji Kaneshige get_adapter_status(hotplug_slot, &info->adapter_status); 1511da177e4SLinus Torvalds 152926030f6SKenji Kaneshige dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " 153926030f6SKenji Kaneshige "slot_device_offset=%x\n", slot->bus, slot->device, 154926030f6SKenji Kaneshige slot->hp_slot, slot->number, ctrl->slot_device_offset); 155926030f6SKenji Kaneshige retval = pci_hp_register(slot->hotplug_slot); 156926030f6SKenji Kaneshige if (retval) { 157926030f6SKenji Kaneshige err("pci_hp_register failed with error %d\n", retval); 158bbe779dbSKenji Kaneshige goto error_info; 1591da177e4SLinus Torvalds } 1601da177e4SLinus Torvalds 1615b1a960dSKenji Kaneshige list_add(&slot->slot_list, &ctrl->slot_list); 1621da177e4SLinus Torvalds } 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvalds return 0; 1651da177e4SLinus Torvalds error_info: 166926030f6SKenji Kaneshige kfree(info); 1671da177e4SLinus Torvalds error_hpslot: 168926030f6SKenji Kaneshige kfree(hotplug_slot); 1691da177e4SLinus Torvalds error_slot: 170926030f6SKenji Kaneshige kfree(slot); 1711da177e4SLinus Torvalds error: 172926030f6SKenji Kaneshige return retval; 1731da177e4SLinus Torvalds } 1741da177e4SLinus Torvalds 175f7391f53SKenji Kaneshige void cleanup_slots(struct controller *ctrl) 1761da177e4SLinus Torvalds { 1775b1a960dSKenji Kaneshige struct list_head *tmp; 1785b1a960dSKenji Kaneshige struct list_head *next; 1795b1a960dSKenji Kaneshige struct slot *slot; 1801da177e4SLinus Torvalds 1815b1a960dSKenji Kaneshige list_for_each_safe(tmp, next, &ctrl->slot_list) { 1825b1a960dSKenji Kaneshige slot = list_entry(tmp, struct slot, slot_list); 1835b1a960dSKenji Kaneshige list_del(&slot->slot_list); 184f7391f53SKenji Kaneshige cancel_delayed_work(&slot->work); 185a246fa4eSKenji Kaneshige flush_scheduled_work(); 186f7391f53SKenji Kaneshige flush_workqueue(shpchp_wq); 1875b1a960dSKenji Kaneshige pci_hp_deregister(slot->hotplug_slot); 1881da177e4SLinus Torvalds } 1891da177e4SLinus Torvalds } 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds /* 1921da177e4SLinus Torvalds * set_attention_status - Turns the Amber LED for a slot on, off or blink 1931da177e4SLinus Torvalds */ 1941da177e4SLinus Torvalds static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status) 1951da177e4SLinus Torvalds { 1968352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 1971da177e4SLinus Torvalds 1981da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 1991da177e4SLinus Torvalds 2001da177e4SLinus Torvalds hotplug_slot->info->attention_status = status; 2011da177e4SLinus Torvalds slot->hpc_ops->set_attention_status(slot, status); 2021da177e4SLinus Torvalds 2031da177e4SLinus Torvalds return 0; 2041da177e4SLinus Torvalds } 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds static int enable_slot (struct hotplug_slot *hotplug_slot) 2071da177e4SLinus Torvalds { 2088352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2091da177e4SLinus Torvalds 2101da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 2111da177e4SLinus Torvalds 212a246fa4eSKenji Kaneshige return shpchp_sysfs_enable_slot(slot); 2131da177e4SLinus Torvalds } 2141da177e4SLinus Torvalds 2151da177e4SLinus Torvalds static int disable_slot (struct hotplug_slot *hotplug_slot) 2161da177e4SLinus Torvalds { 2178352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2181da177e4SLinus Torvalds 2191da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 2201da177e4SLinus Torvalds 221a246fa4eSKenji Kaneshige return shpchp_sysfs_disable_slot(slot); 2221da177e4SLinus Torvalds } 2231da177e4SLinus Torvalds 2241da177e4SLinus Torvalds static int get_power_status (struct hotplug_slot *hotplug_slot, u8 *value) 2251da177e4SLinus Torvalds { 2268352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2271da177e4SLinus Torvalds int retval; 2281da177e4SLinus Torvalds 2291da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 2301da177e4SLinus Torvalds 2311da177e4SLinus Torvalds retval = slot->hpc_ops->get_power_status(slot, value); 2321da177e4SLinus Torvalds if (retval < 0) 2331da177e4SLinus Torvalds *value = hotplug_slot->info->power_status; 2341da177e4SLinus Torvalds 2351da177e4SLinus Torvalds return 0; 2361da177e4SLinus Torvalds } 2371da177e4SLinus Torvalds 2381da177e4SLinus Torvalds static int get_attention_status (struct hotplug_slot *hotplug_slot, u8 *value) 2391da177e4SLinus Torvalds { 2408352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2411da177e4SLinus Torvalds int retval; 2421da177e4SLinus Torvalds 2431da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds retval = slot->hpc_ops->get_attention_status(slot, value); 2461da177e4SLinus Torvalds if (retval < 0) 2471da177e4SLinus Torvalds *value = hotplug_slot->info->attention_status; 2481da177e4SLinus Torvalds 2491da177e4SLinus Torvalds return 0; 2501da177e4SLinus Torvalds } 2511da177e4SLinus Torvalds 2521da177e4SLinus Torvalds static int get_latch_status (struct hotplug_slot *hotplug_slot, u8 *value) 2531da177e4SLinus Torvalds { 2548352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2551da177e4SLinus Torvalds int retval; 2561da177e4SLinus Torvalds 2571da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds retval = slot->hpc_ops->get_latch_status(slot, value); 2601da177e4SLinus Torvalds if (retval < 0) 2611da177e4SLinus Torvalds *value = hotplug_slot->info->latch_status; 2621da177e4SLinus Torvalds 2631da177e4SLinus Torvalds return 0; 2641da177e4SLinus Torvalds } 2651da177e4SLinus Torvalds 2661da177e4SLinus Torvalds static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value) 2671da177e4SLinus Torvalds { 2688352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2691da177e4SLinus Torvalds int retval; 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 2721da177e4SLinus Torvalds 2731da177e4SLinus Torvalds retval = slot->hpc_ops->get_adapter_status(slot, value); 2741da177e4SLinus Torvalds if (retval < 0) 2751da177e4SLinus Torvalds *value = hotplug_slot->info->adapter_status; 2761da177e4SLinus Torvalds 2771da177e4SLinus Torvalds return 0; 2781da177e4SLinus Torvalds } 2791da177e4SLinus Torvalds 28081f15442SKenji Kaneshige static int get_address (struct hotplug_slot *hotplug_slot, u32 *value) 28181f15442SKenji Kaneshige { 2828352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 28381f15442SKenji Kaneshige struct pci_bus *bus = slot->ctrl->pci_dev->subordinate; 28481f15442SKenji Kaneshige 28581f15442SKenji Kaneshige dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 28681f15442SKenji Kaneshige 28781f15442SKenji Kaneshige *value = (pci_domain_nr(bus) << 16) | (slot->bus << 8) | slot->device; 28881f15442SKenji Kaneshige 28981f15442SKenji Kaneshige return 0; 29081f15442SKenji Kaneshige } 29181f15442SKenji Kaneshige 2921da177e4SLinus Torvalds static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 2931da177e4SLinus Torvalds { 2948352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 2951da177e4SLinus Torvalds int retval; 2961da177e4SLinus Torvalds 2971da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 2981da177e4SLinus Torvalds 2991da177e4SLinus Torvalds retval = slot->hpc_ops->get_max_bus_speed(slot, value); 3001da177e4SLinus Torvalds if (retval < 0) 3011da177e4SLinus Torvalds *value = PCI_SPEED_UNKNOWN; 3021da177e4SLinus Torvalds 3031da177e4SLinus Torvalds return 0; 3041da177e4SLinus Torvalds } 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 3071da177e4SLinus Torvalds { 3088352e04eSKenji Kaneshige struct slot *slot = get_slot(hotplug_slot); 3091da177e4SLinus Torvalds int retval; 3101da177e4SLinus Torvalds 3111da177e4SLinus Torvalds dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); 3121da177e4SLinus Torvalds 3131da177e4SLinus Torvalds retval = slot->hpc_ops->get_cur_bus_speed(slot, value); 3141da177e4SLinus Torvalds if (retval < 0) 3151da177e4SLinus Torvalds *value = PCI_SPEED_UNKNOWN; 3161da177e4SLinus Torvalds 3171da177e4SLinus Torvalds return 0; 3181da177e4SLinus Torvalds } 3191da177e4SLinus Torvalds 3201410dc1cSrajesh.shah@intel.com static int is_shpc_capable(struct pci_dev *dev) 3211410dc1cSrajesh.shah@intel.com { 3221410dc1cSrajesh.shah@intel.com if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device == 3231410dc1cSrajesh.shah@intel.com PCI_DEVICE_ID_AMD_GOLAM_7450)) 3241410dc1cSrajesh.shah@intel.com return 1; 3251410dc1cSrajesh.shah@intel.com if (pci_find_capability(dev, PCI_CAP_ID_SHPC)) 3261410dc1cSrajesh.shah@intel.com return 1; 3271410dc1cSrajesh.shah@intel.com 3281410dc1cSrajesh.shah@intel.com return 0; 3291410dc1cSrajesh.shah@intel.com } 3301410dc1cSrajesh.shah@intel.com 3311da177e4SLinus Torvalds static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 3321da177e4SLinus Torvalds { 3331da177e4SLinus Torvalds int rc; 3341da177e4SLinus Torvalds struct controller *ctrl; 3351da177e4SLinus Torvalds 3361410dc1cSrajesh.shah@intel.com if (!is_shpc_capable(pdev)) 3371410dc1cSrajesh.shah@intel.com return -ENODEV; 3381410dc1cSrajesh.shah@intel.com 33957c95c0dSKenji Kaneshige ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL); 3401da177e4SLinus Torvalds if (!ctrl) { 3411da177e4SLinus Torvalds err("%s : out of memory\n", __FUNCTION__); 3421da177e4SLinus Torvalds goto err_out_none; 3431da177e4SLinus Torvalds } 3445b1a960dSKenji Kaneshige INIT_LIST_HEAD(&ctrl->slot_list); 3451da177e4SLinus Torvalds 346ee138334Srajesh.shah@intel.com rc = shpc_init(ctrl, pdev); 3471da177e4SLinus Torvalds if (rc) { 348dfcd5f68SKenji Kaneshige dbg("%s: controller initialization failed\n", 349dfcd5f68SKenji Kaneshige SHPC_MODULE_NAME); 3501da177e4SLinus Torvalds goto err_out_free_ctrl; 3511da177e4SLinus Torvalds } 3521da177e4SLinus Torvalds 3531da177e4SLinus Torvalds pci_set_drvdata(pdev, ctrl); 3541da177e4SLinus Torvalds 3551da177e4SLinus Torvalds /* Setup the slot information structures */ 3561da177e4SLinus Torvalds rc = init_slots(ctrl); 3571da177e4SLinus Torvalds if (rc) { 3588352e04eSKenji Kaneshige err("%s: slot initialization failed\n", SHPC_MODULE_NAME); 359f7391f53SKenji Kaneshige goto err_out_release_ctlr; 3601da177e4SLinus Torvalds } 3611da177e4SLinus Torvalds 362e1b95dc6SGreg Kroah-Hartman rc = shpchp_create_ctrl_files(ctrl); 363e1b95dc6SGreg Kroah-Hartman if (rc) 364e1b95dc6SGreg Kroah-Hartman goto err_cleanup_slots; 3651da177e4SLinus Torvalds 3661da177e4SLinus Torvalds return 0; 3671da177e4SLinus Torvalds 368e1b95dc6SGreg Kroah-Hartman err_cleanup_slots: 369e1b95dc6SGreg Kroah-Hartman cleanup_slots(ctrl); 370f7391f53SKenji Kaneshige err_out_release_ctlr: 3711da177e4SLinus Torvalds ctrl->hpc_ops->release_ctlr(ctrl); 3721da177e4SLinus Torvalds err_out_free_ctrl: 3731da177e4SLinus Torvalds kfree(ctrl); 3741da177e4SLinus Torvalds err_out_none: 3751da177e4SLinus Torvalds return -ENODEV; 3761da177e4SLinus Torvalds } 3771da177e4SLinus Torvalds 378e6b82b13SKenji Kaneshige static void shpc_remove(struct pci_dev *dev) 3791da177e4SLinus Torvalds { 380e6b82b13SKenji Kaneshige struct controller *ctrl = pci_get_drvdata(dev); 3811da177e4SLinus Torvalds 382c2608a11Srajesh.shah@intel.com shpchp_remove_ctrl_files(ctrl); 3831da177e4SLinus Torvalds ctrl->hpc_ops->release_ctlr(ctrl); 384a4534560SKenji Kaneshige kfree(ctrl); 3851da177e4SLinus Torvalds } 3861da177e4SLinus Torvalds 3871da177e4SLinus Torvalds static struct pci_device_id shpcd_pci_tbl[] = { 388dfcd5f68SKenji Kaneshige {PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0)}, 3891da177e4SLinus Torvalds { /* end: all zeroes */ } 3901da177e4SLinus Torvalds }; 3911da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, shpcd_pci_tbl); 3921da177e4SLinus Torvalds 3931da177e4SLinus Torvalds static struct pci_driver shpc_driver = { 3941da177e4SLinus Torvalds .name = SHPC_MODULE_NAME, 3951da177e4SLinus Torvalds .id_table = shpcd_pci_tbl, 3961da177e4SLinus Torvalds .probe = shpc_probe, 397e6b82b13SKenji Kaneshige .remove = shpc_remove, 3981da177e4SLinus Torvalds }; 3991da177e4SLinus Torvalds 4001da177e4SLinus Torvalds static int __init shpcd_init(void) 4011da177e4SLinus Torvalds { 4021da177e4SLinus Torvalds int retval = 0; 4031da177e4SLinus Torvalds 4041da177e4SLinus Torvalds retval = pci_register_driver(&shpc_driver); 4051da177e4SLinus Torvalds dbg("%s: pci_register_driver = %d\n", __FUNCTION__, retval); 4061da177e4SLinus Torvalds info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); 4071da177e4SLinus Torvalds return retval; 4081da177e4SLinus Torvalds } 4091da177e4SLinus Torvalds 4101da177e4SLinus Torvalds static void __exit shpcd_cleanup(void) 4111da177e4SLinus Torvalds { 4121da177e4SLinus Torvalds dbg("unload_shpchpd()\n"); 4131da177e4SLinus Torvalds pci_unregister_driver(&shpc_driver); 4141da177e4SLinus Torvalds info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n"); 4151da177e4SLinus Torvalds } 4161da177e4SLinus Torvalds 4171da177e4SLinus Torvalds module_init(shpcd_init); 4181da177e4SLinus Torvalds module_exit(shpcd_cleanup); 419