Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * PCI Express Hot Plug Controller Driver |
| 3 | * |
| 4 | * Copyright (C) 1995,2001 Compaq Computer Corporation |
| 5 | * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) |
| 6 | * Copyright (C) 2001 IBM Corp. |
| 7 | * Copyright (C) 2003-2004 Intel Corporation |
| 8 | * |
| 9 | * All rights reserved. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or (at |
| 14 | * your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, but |
| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| 19 | * NON INFRINGEMENT. See the GNU General Public License for more |
| 20 | * details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 25 | * |
Kristen Accardi | 8cf4c19 | 2005-08-16 15:16:10 -0700 | [diff] [blame] | 26 | * Send feedback to <greg@kroah.com>, <kristen.c.accardi@intel.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | * |
| 28 | */ |
| 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/module.h> |
| 31 | #include <linux/kernel.h> |
| 32 | #include <linux/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <linux/smp_lock.h> |
| 34 | #include <linux/pci.h> |
| 35 | #include "../pci.h" |
| 36 | #include "pciehp.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | static void interrupt_event_handler(struct controller *ctrl); |
| 39 | |
| 40 | static struct semaphore event_semaphore; /* mutex for process loop (up if something to process) */ |
| 41 | static struct semaphore event_exit; /* guard ensure thread has exited before calling it quits */ |
| 42 | static int event_finished; |
| 43 | static unsigned long pushbutton_pending; /* = 0 */ |
| 44 | static unsigned long surprise_rm_pending; /* = 0 */ |
| 45 | |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 46 | static inline char *slot_name(struct slot *p_slot) |
| 47 | { |
| 48 | return p_slot->hotplug_slot->name; |
| 49 | } |
| 50 | |
Kenji Kaneshige | 48fe391 | 2006-12-21 17:01:04 -0800 | [diff] [blame] | 51 | u8 pciehp_handle_attention_button(u8 hp_slot, struct controller *ctrl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | struct slot *p_slot; |
| 54 | u8 rc = 0; |
| 55 | u8 getstatus; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | struct event_info *taskInfo; |
| 57 | |
| 58 | /* Attention Button Change */ |
| 59 | dbg("pciehp: Attention button interrupt received.\n"); |
| 60 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | /* This is the structure that tells the worker thread what to do */ |
| 62 | taskInfo = &(ctrl->event_queue[ctrl->next_event]); |
| 63 | p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
| 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
| 66 | |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 67 | ctrl->next_event = (ctrl->next_event + 1) % MAX_EVENTS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | taskInfo->hp_slot = hp_slot; |
| 69 | |
| 70 | rc++; |
| 71 | |
| 72 | /* |
| 73 | * Button pressed - See if need to TAKE ACTION!!! |
| 74 | */ |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 75 | info("Button pressed on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | taskInfo->event_type = INT_BUTTON_PRESS; |
| 77 | |
| 78 | if ((p_slot->state == BLINKINGON_STATE) |
| 79 | || (p_slot->state == BLINKINGOFF_STATE)) { |
| 80 | /* Cancel if we are still blinking; this means that we press the |
| 81 | * attention again before the 5 sec. limit expires to cancel hot-add |
| 82 | * or hot-remove |
| 83 | */ |
| 84 | taskInfo->event_type = INT_BUTTON_CANCEL; |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 85 | info("Button cancel on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | } else if ((p_slot->state == POWERON_STATE) |
| 87 | || (p_slot->state == POWEROFF_STATE)) { |
| 88 | /* Ignore if the slot is on power-on or power-off state; this |
| 89 | * means that the previous attention button action to hot-add or |
| 90 | * hot-remove is undergoing |
| 91 | */ |
| 92 | taskInfo->event_type = INT_BUTTON_IGNORE; |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 93 | info("Button ignore on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | if (rc) |
| 97 | up(&event_semaphore); /* signal event thread that new event is posted */ |
| 98 | |
| 99 | return 0; |
| 100 | |
| 101 | } |
| 102 | |
Kenji Kaneshige | 48fe391 | 2006-12-21 17:01:04 -0800 | [diff] [blame] | 103 | u8 pciehp_handle_switch_change(u8 hp_slot, struct controller *ctrl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | struct slot *p_slot; |
| 106 | u8 rc = 0; |
| 107 | u8 getstatus; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | struct event_info *taskInfo; |
| 109 | |
| 110 | /* Switch Change */ |
| 111 | dbg("pciehp: Switch interrupt received.\n"); |
| 112 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | /* This is the structure that tells the worker thread |
| 114 | * what to do |
| 115 | */ |
| 116 | taskInfo = &(ctrl->event_queue[ctrl->next_event]); |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 117 | ctrl->next_event = (ctrl->next_event + 1) % MAX_EVENTS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | taskInfo->hp_slot = hp_slot; |
| 119 | |
| 120 | rc++; |
| 121 | p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
| 123 | |
| 124 | if (getstatus) { |
| 125 | /* |
| 126 | * Switch opened |
| 127 | */ |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 128 | info("Latch open on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | taskInfo->event_type = INT_SWITCH_OPEN; |
| 130 | } else { |
| 131 | /* |
| 132 | * Switch closed |
| 133 | */ |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 134 | info("Latch close on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | taskInfo->event_type = INT_SWITCH_CLOSE; |
| 136 | } |
| 137 | |
| 138 | if (rc) |
| 139 | up(&event_semaphore); /* signal event thread that new event is posted */ |
| 140 | |
| 141 | return rc; |
| 142 | } |
| 143 | |
Kenji Kaneshige | 48fe391 | 2006-12-21 17:01:04 -0800 | [diff] [blame] | 144 | u8 pciehp_handle_presence_change(u8 hp_slot, struct controller *ctrl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | struct slot *p_slot; |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 147 | u8 presence_save, rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | struct event_info *taskInfo; |
| 149 | |
| 150 | /* Presence Change */ |
| 151 | dbg("pciehp: Presence/Notify input change.\n"); |
| 152 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | /* This is the structure that tells the worker thread |
| 154 | * what to do |
| 155 | */ |
| 156 | taskInfo = &(ctrl->event_queue[ctrl->next_event]); |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 157 | ctrl->next_event = (ctrl->next_event + 1) % MAX_EVENTS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | taskInfo->hp_slot = hp_slot; |
| 159 | |
| 160 | rc++; |
| 161 | p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
| 162 | |
| 163 | /* Switch is open, assume a presence change |
| 164 | * Save the presence state |
| 165 | */ |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 166 | p_slot->hpc_ops->get_adapter_status(p_slot, &presence_save); |
| 167 | if (presence_save) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | /* |
| 169 | * Card Present |
| 170 | */ |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 171 | info("Card present on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | taskInfo->event_type = INT_PRESENCE_ON; |
| 173 | } else { |
| 174 | /* |
| 175 | * Not Present |
| 176 | */ |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 177 | info("Card not present on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | taskInfo->event_type = INT_PRESENCE_OFF; |
| 179 | } |
| 180 | |
| 181 | if (rc) |
| 182 | up(&event_semaphore); /* signal event thread that new event is posted */ |
| 183 | |
| 184 | return rc; |
| 185 | } |
| 186 | |
Kenji Kaneshige | 48fe391 | 2006-12-21 17:01:04 -0800 | [diff] [blame] | 187 | u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | struct slot *p_slot; |
| 190 | u8 rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | struct event_info *taskInfo; |
| 192 | |
| 193 | /* power fault */ |
| 194 | dbg("pciehp: Power fault interrupt received.\n"); |
| 195 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | /* this is the structure that tells the worker thread |
| 197 | * what to do |
| 198 | */ |
| 199 | taskInfo = &(ctrl->event_queue[ctrl->next_event]); |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 200 | ctrl->next_event = (ctrl->next_event + 1) % MAX_EVENTS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | taskInfo->hp_slot = hp_slot; |
| 202 | |
| 203 | rc++; |
| 204 | p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
| 205 | |
| 206 | if ( !(p_slot->hpc_ops->query_power_fault(p_slot))) { |
| 207 | /* |
| 208 | * power fault Cleared |
| 209 | */ |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 210 | info("Power fault cleared on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | taskInfo->event_type = INT_POWER_FAULT_CLEAR; |
| 212 | } else { |
| 213 | /* |
| 214 | * power fault |
| 215 | */ |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 216 | info("Power fault on Slot(%s)\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | taskInfo->event_type = INT_POWER_FAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | info("power fault bit %x set\n", hp_slot); |
| 219 | } |
| 220 | if (rc) |
| 221 | up(&event_semaphore); /* signal event thread that new event is posted */ |
| 222 | |
| 223 | return rc; |
| 224 | } |
| 225 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | /* The following routines constitute the bulk of the |
| 227 | hotplug controller logic |
| 228 | */ |
| 229 | |
| 230 | static void set_slot_off(struct controller *ctrl, struct slot * pslot) |
| 231 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | /* turn off slot, turn on Amber LED, turn off Green LED if supported*/ |
| 233 | if (POWER_CTRL(ctrl->ctrlcap)) { |
| 234 | if (pslot->hpc_ops->power_off_slot(pslot)) { |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 235 | err("%s: Issue of Slot Power Off command failed\n", |
| 236 | __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | return; |
| 238 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | } |
| 240 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 241 | if (PWR_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | pslot->hpc_ops->green_led_off(pslot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 244 | if (ATTN_LED(ctrl->ctrlcap)) { |
| 245 | if (pslot->hpc_ops->set_attention_status(pslot, 1)) { |
| 246 | err("%s: Issue of Set Attention Led command failed\n", |
| 247 | __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | return; |
| 249 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | /** |
| 254 | * board_added - Called after a board has been added to the system. |
| 255 | * |
| 256 | * Turns power on for the board |
| 257 | * Configures board |
| 258 | * |
| 259 | */ |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 260 | static int board_added(struct slot *p_slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | { |
| 262 | u8 hp_slot; |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 263 | int retval = 0; |
rajesh.shah@intel.com | ca22a5e | 2005-10-31 16:20:08 -0800 | [diff] [blame] | 264 | struct controller *ctrl = p_slot->ctrl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
rajesh.shah@intel.com | ca22a5e | 2005-10-31 16:20:08 -0800 | [diff] [blame] | 266 | hp_slot = p_slot->device - ctrl->slot_device_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | |
rajesh.shah@intel.com | 1a9ed1b | 2005-10-31 16:20:10 -0800 | [diff] [blame] | 268 | dbg("%s: slot device, slot offset, hp slot = %d, %d ,%d\n", |
| 269 | __FUNCTION__, p_slot->device, |
| 270 | ctrl->slot_device_offset, hp_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | if (POWER_CTRL(ctrl->ctrlcap)) { |
| 273 | /* Power on slot */ |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 274 | retval = p_slot->hpc_ops->power_on_slot(p_slot); |
| 275 | if (retval) |
| 276 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | } |
| 278 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 279 | if (PWR_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | p_slot->hpc_ops->green_led_blink(p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
| 282 | /* Wait for ~1 second */ |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 283 | msleep(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 285 | /* Check link training status */ |
| 286 | retval = p_slot->hpc_ops->check_lnk_status(ctrl); |
| 287 | if (retval) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | err("%s: Failed to check link status\n", __FUNCTION__); |
| 289 | set_slot_off(ctrl, p_slot); |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 290 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | } |
| 292 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | /* Check for a power fault */ |
Rajesh Shah | 5a49f20 | 2005-11-23 15:44:54 -0800 | [diff] [blame] | 294 | if (p_slot->hpc_ops->query_power_fault(p_slot)) { |
| 295 | dbg("%s: power fault detected\n", __FUNCTION__); |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 296 | retval = POWER_FAILURE; |
rajesh.shah@intel.com | 71b720c | 2005-10-31 16:20:06 -0800 | [diff] [blame] | 297 | goto err_exit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | } |
| 299 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 300 | retval = pciehp_configure_device(p_slot); |
| 301 | if (retval) { |
rajesh.shah@intel.com | 71b720c | 2005-10-31 16:20:06 -0800 | [diff] [blame] | 302 | err("Cannot add device 0x%x:%x\n", p_slot->bus, |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 303 | p_slot->device); |
rajesh.shah@intel.com | 71b720c | 2005-10-31 16:20:06 -0800 | [diff] [blame] | 304 | goto err_exit; |
| 305 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | |
rajesh.shah@intel.com | 71b720c | 2005-10-31 16:20:06 -0800 | [diff] [blame] | 307 | /* |
| 308 | * Some PCI Express root ports require fixup after hot-plug operation. |
| 309 | */ |
| 310 | if (pcie_mch_quirk) |
| 311 | pci_fixup_device(pci_fixup_final, ctrl->pci_dev); |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 312 | if (PWR_LED(ctrl->ctrlcap)) |
rajesh.shah@intel.com | 71b720c | 2005-10-31 16:20:06 -0800 | [diff] [blame] | 313 | p_slot->hpc_ops->green_led_on(p_slot); |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 314 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | return 0; |
rajesh.shah@intel.com | 71b720c | 2005-10-31 16:20:06 -0800 | [diff] [blame] | 316 | |
| 317 | err_exit: |
| 318 | set_slot_off(ctrl, p_slot); |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 319 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | } |
| 321 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | /** |
| 323 | * remove_board - Turns off slot and LED's |
| 324 | * |
| 325 | */ |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 326 | static int remove_board(struct slot *p_slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | u8 device; |
| 329 | u8 hp_slot; |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 330 | int retval = 0; |
rajesh.shah@intel.com | ca22a5e | 2005-10-31 16:20:08 -0800 | [diff] [blame] | 331 | struct controller *ctrl = p_slot->ctrl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 333 | retval = pciehp_unconfigure_device(p_slot); |
| 334 | if (retval) |
| 335 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | |
rajesh.shah@intel.com | ca22a5e | 2005-10-31 16:20:08 -0800 | [diff] [blame] | 337 | device = p_slot->device; |
rajesh.shah@intel.com | ca22a5e | 2005-10-31 16:20:08 -0800 | [diff] [blame] | 338 | hp_slot = p_slot->device - ctrl->slot_device_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
| 340 | |
| 341 | dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot); |
| 342 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | if (POWER_CTRL(ctrl->ctrlcap)) { |
| 344 | /* power off slot */ |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 345 | retval = p_slot->hpc_ops->power_off_slot(p_slot); |
| 346 | if (retval) { |
| 347 | err("%s: Issue of Slot Disable command failed\n", |
| 348 | __FUNCTION__); |
| 349 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | } |
| 352 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 353 | if (PWR_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | /* turn off Green LED */ |
| 355 | p_slot->hpc_ops->green_led_off(p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | |
| 361 | static void pushbutton_helper_thread(unsigned long data) |
| 362 | { |
| 363 | pushbutton_pending = data; |
| 364 | |
| 365 | up(&event_semaphore); |
| 366 | } |
| 367 | |
| 368 | /** |
| 369 | * pciehp_pushbutton_thread |
| 370 | * |
| 371 | * Scheduled procedure to handle blocking stuff for the pushbuttons |
| 372 | * Handles all pending events and exits. |
| 373 | * |
| 374 | */ |
| 375 | static void pciehp_pushbutton_thread(unsigned long slot) |
| 376 | { |
| 377 | struct slot *p_slot = (struct slot *) slot; |
| 378 | u8 getstatus; |
| 379 | |
| 380 | pushbutton_pending = 0; |
| 381 | |
| 382 | if (!p_slot) { |
| 383 | dbg("%s: Error! slot NULL\n", __FUNCTION__); |
| 384 | return; |
| 385 | } |
| 386 | |
| 387 | p_slot->hpc_ops->get_power_status(p_slot, &getstatus); |
| 388 | if (getstatus) { |
| 389 | p_slot->state = POWEROFF_STATE; |
rajesh.shah@intel.com | 1a9ed1b | 2005-10-31 16:20:10 -0800 | [diff] [blame] | 390 | dbg("%s: disabling bus:device(%x:%x)\n", __FUNCTION__, |
| 391 | p_slot->bus, p_slot->device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
| 393 | pciehp_disable_slot(p_slot); |
| 394 | p_slot->state = STATIC_STATE; |
| 395 | } else { |
| 396 | p_slot->state = POWERON_STATE; |
rajesh.shah@intel.com | 1a9ed1b | 2005-10-31 16:20:10 -0800 | [diff] [blame] | 397 | dbg("%s: adding bus:device(%x:%x)\n", __FUNCTION__, |
| 398 | p_slot->bus, p_slot->device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 400 | if (pciehp_enable_slot(p_slot) && |
| 401 | PWR_LED(p_slot->ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | p_slot->hpc_ops->green_led_off(p_slot); |
| 403 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | p_slot->state = STATIC_STATE; |
| 405 | } |
| 406 | |
| 407 | return; |
| 408 | } |
| 409 | |
| 410 | /** |
| 411 | * pciehp_surprise_rm_thread |
| 412 | * |
| 413 | * Scheduled procedure to handle blocking stuff for the surprise removal |
| 414 | * Handles all pending events and exits. |
| 415 | * |
| 416 | */ |
| 417 | static void pciehp_surprise_rm_thread(unsigned long slot) |
| 418 | { |
| 419 | struct slot *p_slot = (struct slot *) slot; |
| 420 | u8 getstatus; |
| 421 | |
| 422 | surprise_rm_pending = 0; |
| 423 | |
| 424 | if (!p_slot) { |
| 425 | dbg("%s: Error! slot NULL\n", __FUNCTION__); |
| 426 | return; |
| 427 | } |
| 428 | |
| 429 | p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); |
| 430 | if (!getstatus) { |
| 431 | p_slot->state = POWEROFF_STATE; |
rajesh.shah@intel.com | 1a9ed1b | 2005-10-31 16:20:10 -0800 | [diff] [blame] | 432 | dbg("%s: removing bus:device(%x:%x)\n", |
| 433 | __FUNCTION__, p_slot->bus, p_slot->device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | |
| 435 | pciehp_disable_slot(p_slot); |
| 436 | p_slot->state = STATIC_STATE; |
| 437 | } else { |
| 438 | p_slot->state = POWERON_STATE; |
rajesh.shah@intel.com | 1a9ed1b | 2005-10-31 16:20:10 -0800 | [diff] [blame] | 439 | dbg("%s: adding bus:device(%x:%x)\n", |
| 440 | __FUNCTION__, p_slot->bus, p_slot->device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 442 | if (pciehp_enable_slot(p_slot) && |
| 443 | PWR_LED(p_slot->ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | p_slot->hpc_ops->green_led_off(p_slot); |
| 445 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | p_slot->state = STATIC_STATE; |
| 447 | } |
| 448 | |
| 449 | return; |
| 450 | } |
| 451 | |
| 452 | |
| 453 | |
| 454 | /* this is the main worker thread */ |
| 455 | static int event_thread(void* data) |
| 456 | { |
| 457 | struct controller *ctrl; |
| 458 | lock_kernel(); |
| 459 | daemonize("pciehpd_event"); |
| 460 | |
| 461 | unlock_kernel(); |
| 462 | |
| 463 | while (1) { |
| 464 | dbg("!!!!event_thread sleeping\n"); |
| 465 | down_interruptible (&event_semaphore); |
| 466 | dbg("event_thread woken finished = %d\n", event_finished); |
| 467 | if (event_finished || signal_pending(current)) |
| 468 | break; |
| 469 | /* Do stuff here */ |
| 470 | if (pushbutton_pending) |
| 471 | pciehp_pushbutton_thread(pushbutton_pending); |
| 472 | else if (surprise_rm_pending) |
| 473 | pciehp_surprise_rm_thread(surprise_rm_pending); |
| 474 | else |
| 475 | for (ctrl = pciehp_ctrl_list; ctrl; ctrl=ctrl->next) |
| 476 | interrupt_event_handler(ctrl); |
| 477 | } |
| 478 | dbg("event_thread signals exit\n"); |
| 479 | up(&event_exit); |
| 480 | return 0; |
| 481 | } |
| 482 | |
| 483 | int pciehp_event_start_thread(void) |
| 484 | { |
| 485 | int pid; |
| 486 | |
| 487 | /* initialize our semaphores */ |
| 488 | init_MUTEX_LOCKED(&event_exit); |
| 489 | event_finished=0; |
| 490 | |
| 491 | init_MUTEX_LOCKED(&event_semaphore); |
| 492 | pid = kernel_thread(event_thread, NULL, 0); |
| 493 | |
| 494 | if (pid < 0) { |
| 495 | err ("Can't start up our event thread\n"); |
| 496 | return -1; |
| 497 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | return 0; |
| 499 | } |
| 500 | |
| 501 | |
| 502 | void pciehp_event_stop_thread(void) |
| 503 | { |
| 504 | event_finished = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | up(&event_semaphore); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | down(&event_exit); |
| 507 | } |
| 508 | |
| 509 | |
| 510 | static int update_slot_info(struct slot *slot) |
| 511 | { |
| 512 | struct hotplug_slot_info *info; |
| 513 | /* char buffer[SLOT_NAME_SIZE]; */ |
| 514 | int result; |
| 515 | |
| 516 | info = kmalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL); |
| 517 | if (!info) |
| 518 | return -ENOMEM; |
| 519 | |
| 520 | /* make_slot_name (&buffer[0], SLOT_NAME_SIZE, slot); */ |
| 521 | |
| 522 | slot->hpc_ops->get_power_status(slot, &(info->power_status)); |
| 523 | slot->hpc_ops->get_attention_status(slot, &(info->attention_status)); |
| 524 | slot->hpc_ops->get_latch_status(slot, &(info->latch_status)); |
| 525 | slot->hpc_ops->get_adapter_status(slot, &(info->adapter_status)); |
| 526 | |
| 527 | /* result = pci_hp_change_slot_info(buffer, info); */ |
| 528 | result = pci_hp_change_slot_info(slot->hotplug_slot, info); |
| 529 | kfree (info); |
| 530 | return result; |
| 531 | } |
| 532 | |
| 533 | static void interrupt_event_handler(struct controller *ctrl) |
| 534 | { |
| 535 | int loop = 0; |
| 536 | int change = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | u8 hp_slot; |
| 538 | u8 getstatus; |
| 539 | struct slot *p_slot; |
| 540 | |
| 541 | while (change) { |
| 542 | change = 0; |
| 543 | |
rajesh.shah@intel.com | ed6cbcf | 2005-10-31 16:20:09 -0800 | [diff] [blame] | 544 | for (loop = 0; loop < MAX_EVENTS; loop++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | if (ctrl->event_queue[loop].event_type != 0) { |
| 546 | hp_slot = ctrl->event_queue[loop].hp_slot; |
| 547 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
| 549 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | if (ctrl->event_queue[loop].event_type == INT_BUTTON_CANCEL) { |
| 551 | dbg("button cancel\n"); |
| 552 | del_timer(&p_slot->task_event); |
| 553 | |
| 554 | switch (p_slot->state) { |
| 555 | case BLINKINGOFF_STATE: |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 556 | if (PWR_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | p_slot->hpc_ops->green_led_on(p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 559 | if (ATTN_LED(ctrl->ctrlcap)) |
| 560 | p_slot->hpc_ops->set_attention_status(p_slot, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | break; |
| 562 | case BLINKINGON_STATE: |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 563 | if (PWR_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | p_slot->hpc_ops->green_led_off(p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 566 | if (ATTN_LED(ctrl->ctrlcap)) |
| 567 | p_slot->hpc_ops->set_attention_status(p_slot, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | break; |
| 569 | default: |
| 570 | warn("Not a valid state\n"); |
| 571 | return; |
| 572 | } |
Kenji Kaneshige | 15232ec | 2006-12-21 17:01:07 -0800 | [diff] [blame] | 573 | info("PCI slot #%s - action canceled due to button press.\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | p_slot->state = STATIC_STATE; |
| 575 | } |
| 576 | /* ***********Button Pressed (No action on 1st press...) */ |
| 577 | else if (ctrl->event_queue[loop].event_type == INT_BUTTON_PRESS) { |
| 578 | |
| 579 | if (ATTN_BUTTN(ctrl->ctrlcap)) { |
| 580 | dbg("Button pressed\n"); |
| 581 | p_slot->hpc_ops->get_power_status(p_slot, &getstatus); |
| 582 | if (getstatus) { |
| 583 | /* slot is on */ |
| 584 | dbg("slot is on\n"); |
| 585 | p_slot->state = BLINKINGOFF_STATE; |
Kenji Kaneshige | 15232ec | 2006-12-21 17:01:07 -0800 | [diff] [blame] | 586 | info("PCI slot #%s - powering off due to button press.\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | } else { |
| 588 | /* slot is off */ |
| 589 | dbg("slot is off\n"); |
| 590 | p_slot->state = BLINKINGON_STATE; |
Kenji Kaneshige | 15232ec | 2006-12-21 17:01:07 -0800 | [diff] [blame] | 591 | info("PCI slot #%s - powering on due to button press.\n", slot_name(p_slot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | } |
| 593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | /* blink green LED and turn off amber */ |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 595 | if (PWR_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | p_slot->hpc_ops->green_led_blink(p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 598 | if (ATTN_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | p_slot->hpc_ops->set_attention_status(p_slot, 0); |
| 600 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | init_timer(&p_slot->task_event); |
| 602 | p_slot->task_event.expires = jiffies + 5 * HZ; /* 5 second delay */ |
| 603 | p_slot->task_event.function = (void (*)(unsigned long)) pushbutton_helper_thread; |
| 604 | p_slot->task_event.data = (unsigned long) p_slot; |
| 605 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | add_timer(&p_slot->task_event); |
| 607 | } |
| 608 | } |
| 609 | /***********POWER FAULT********************/ |
| 610 | else if (ctrl->event_queue[loop].event_type == INT_POWER_FAULT) { |
| 611 | if (POWER_CTRL(ctrl->ctrlcap)) { |
| 612 | dbg("power fault\n"); |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 613 | if (ATTN_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | p_slot->hpc_ops->set_attention_status(p_slot, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | |
Kenji Kaneshige | 44ef4ce | 2006-12-21 17:01:09 -0800 | [diff] [blame^] | 616 | if (PWR_LED(ctrl->ctrlcap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | p_slot->hpc_ops->green_led_off(p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | } |
| 619 | } |
| 620 | /***********SURPRISE REMOVAL********************/ |
| 621 | else if ((ctrl->event_queue[loop].event_type == INT_PRESENCE_ON) || |
| 622 | (ctrl->event_queue[loop].event_type == INT_PRESENCE_OFF)) { |
| 623 | if (HP_SUPR_RM(ctrl->ctrlcap)) { |
| 624 | dbg("Surprise Removal\n"); |
| 625 | if (p_slot) { |
| 626 | surprise_rm_pending = (unsigned long) p_slot; |
| 627 | up(&event_semaphore); |
| 628 | update_slot_info(p_slot); |
| 629 | } |
| 630 | } |
| 631 | } else { |
| 632 | /* refresh notification */ |
| 633 | if (p_slot) |
| 634 | update_slot_info(p_slot); |
| 635 | } |
| 636 | |
| 637 | ctrl->event_queue[loop].event_type = 0; |
| 638 | |
| 639 | change = 1; |
| 640 | } |
| 641 | } /* End of FOR loop */ |
| 642 | } |
| 643 | } |
| 644 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | int pciehp_enable_slot(struct slot *p_slot) |
| 646 | { |
| 647 | u8 getstatus = 0; |
| 648 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | |
| 650 | /* Check to see if (latch closed, card present, power off) */ |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 651 | mutex_lock(&p_slot->ctrl->crit_sect); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | |
| 653 | rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); |
| 654 | if (rc || !getstatus) { |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 655 | info("%s: no adapter on slot(%s)\n", __FUNCTION__, |
| 656 | slot_name(p_slot)); |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 657 | mutex_unlock(&p_slot->ctrl->crit_sect); |
Kenji Kaneshige | c9d86d7 | 2006-09-19 17:04:33 -0700 | [diff] [blame] | 658 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | } |
| 660 | if (MRL_SENS(p_slot->ctrl->ctrlcap)) { |
| 661 | rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
| 662 | if (rc || getstatus) { |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 663 | info("%s: latch open on slot(%s)\n", __FUNCTION__, |
| 664 | slot_name(p_slot)); |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 665 | mutex_unlock(&p_slot->ctrl->crit_sect); |
Kenji Kaneshige | c9d86d7 | 2006-09-19 17:04:33 -0700 | [diff] [blame] | 666 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | } |
| 668 | } |
| 669 | |
| 670 | if (POWER_CTRL(p_slot->ctrl->ctrlcap)) { |
| 671 | rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); |
| 672 | if (rc || getstatus) { |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 673 | info("%s: already enabled on slot(%s)\n", __FUNCTION__, |
| 674 | slot_name(p_slot)); |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 675 | mutex_unlock(&p_slot->ctrl->crit_sect); |
Kenji Kaneshige | c9d86d7 | 2006-09-19 17:04:33 -0700 | [diff] [blame] | 676 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | } |
| 678 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | |
rajesh.shah@intel.com | ca22a5e | 2005-10-31 16:20:08 -0800 | [diff] [blame] | 682 | rc = board_added(p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | if (rc) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | } |
| 686 | |
Eric Sesterhenn | 9ef9977 | 2006-09-25 00:56:53 +0200 | [diff] [blame] | 687 | update_slot_info(p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | |
Kenji Kaneshige | dd5619c | 2006-09-22 10:17:29 -0700 | [diff] [blame] | 689 | mutex_unlock(&p_slot->ctrl->crit_sect); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | return rc; |
| 691 | } |
| 692 | |
| 693 | |
| 694 | int pciehp_disable_slot(struct slot *p_slot) |
| 695 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | u8 getstatus = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | |
| 699 | if (!p_slot->ctrl) |
| 700 | return 1; |
| 701 | |
| 702 | /* Check to see if (latch closed, card present, power on) */ |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 703 | mutex_lock(&p_slot->ctrl->crit_sect); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | |
| 705 | if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) { |
| 706 | ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); |
| 707 | if (ret || !getstatus) { |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 708 | info("%s: no adapter on slot(%s)\n", __FUNCTION__, |
| 709 | slot_name(p_slot)); |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 710 | mutex_unlock(&p_slot->ctrl->crit_sect); |
Kenji Kaneshige | c9d86d7 | 2006-09-19 17:04:33 -0700 | [diff] [blame] | 711 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | } |
| 713 | } |
| 714 | |
| 715 | if (MRL_SENS(p_slot->ctrl->ctrlcap)) { |
| 716 | ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
| 717 | if (ret || getstatus) { |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 718 | info("%s: latch open on slot(%s)\n", __FUNCTION__, |
| 719 | slot_name(p_slot)); |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 720 | mutex_unlock(&p_slot->ctrl->crit_sect); |
Kenji Kaneshige | c9d86d7 | 2006-09-19 17:04:33 -0700 | [diff] [blame] | 721 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | } |
| 723 | } |
| 724 | |
| 725 | if (POWER_CTRL(p_slot->ctrl->ctrlcap)) { |
| 726 | ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); |
| 727 | if (ret || !getstatus) { |
Kenji Kaneshige | 49ed2b4 | 2006-09-22 10:17:10 -0700 | [diff] [blame] | 728 | info("%s: already disabled slot(%s)\n", __FUNCTION__, |
| 729 | slot_name(p_slot)); |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 730 | mutex_unlock(&p_slot->ctrl->crit_sect); |
Kenji Kaneshige | c9d86d7 | 2006-09-19 17:04:33 -0700 | [diff] [blame] | 731 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | } |
| 733 | } |
| 734 | |
rajesh.shah@intel.com | ca22a5e | 2005-10-31 16:20:08 -0800 | [diff] [blame] | 735 | ret = remove_board(p_slot); |
| 736 | update_slot_info(p_slot); |
Kenji Kaneshige | dd5619c | 2006-09-22 10:17:29 -0700 | [diff] [blame] | 737 | |
| 738 | mutex_unlock(&p_slot->ctrl->crit_sect); |
rajesh.shah@intel.com | ca22a5e | 2005-10-31 16:20:08 -0800 | [diff] [blame] | 739 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | } |
| 741 | |