Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Standard 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> |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 35 | #include <linux/workqueue.h> |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 36 | #include "../pci.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include "shpchp.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 39 | static void interrupt_event_handler(void *data); |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 40 | static int shpchp_enable_slot(struct slot *p_slot); |
| 41 | static int shpchp_disable_slot(struct slot *p_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 43 | static int queue_interrupt_event(struct slot *p_slot, u32 event_type) |
| 44 | { |
| 45 | struct event_info *info; |
| 46 | |
| 47 | info = kmalloc(sizeof(*info), GFP_ATOMIC); |
| 48 | if (!info) |
| 49 | return -ENOMEM; |
| 50 | |
| 51 | info->event_type = event_type; |
| 52 | info->p_slot = p_slot; |
| 53 | INIT_WORK(&info->work, interrupt_event_handler, info); |
| 54 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 55 | schedule_work(&info->work); |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 56 | |
| 57 | return 0; |
| 58 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | u8 shpchp_handle_attention_button(u8 hp_slot, void *inst_id) |
| 61 | { |
| 62 | struct controller *ctrl = (struct controller *) inst_id; |
| 63 | struct slot *p_slot; |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 64 | u32 event_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
| 66 | /* Attention Button Change */ |
| 67 | dbg("shpchp: Attention button interrupt received.\n"); |
| 68 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 70 | p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | |
| 72 | /* |
| 73 | * Button pressed - See if need to TAKE ACTION!!! |
| 74 | */ |
| 75 | info("Button pressed on Slot(%d)\n", ctrl->first_slot + hp_slot); |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 76 | event_type = INT_BUTTON_PRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 78 | queue_interrupt_event(p_slot, event_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
| 80 | return 0; |
| 81 | |
| 82 | } |
| 83 | |
| 84 | u8 shpchp_handle_switch_change(u8 hp_slot, void *inst_id) |
| 85 | { |
| 86 | struct controller *ctrl = (struct controller *) inst_id; |
| 87 | struct slot *p_slot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | u8 getstatus; |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 89 | u32 event_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
| 91 | /* Switch Change */ |
| 92 | dbg("shpchp: Switch interrupt received.\n"); |
| 93 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 95 | p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
| 97 | dbg("%s: Card present %x Power status %x\n", __FUNCTION__, |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 98 | p_slot->presence_save, p_slot->pwr_save); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
| 100 | if (getstatus) { |
| 101 | /* |
| 102 | * Switch opened |
| 103 | */ |
| 104 | info("Latch open on Slot(%d)\n", ctrl->first_slot + hp_slot); |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 105 | event_type = INT_SWITCH_OPEN; |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 106 | if (p_slot->pwr_save && p_slot->presence_save) { |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 107 | event_type = INT_POWER_FAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | err("Surprise Removal of card\n"); |
| 109 | } |
| 110 | } else { |
| 111 | /* |
| 112 | * Switch closed |
| 113 | */ |
| 114 | info("Latch close on Slot(%d)\n", ctrl->first_slot + hp_slot); |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 115 | event_type = INT_SWITCH_CLOSE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | } |
| 117 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 118 | queue_interrupt_event(p_slot, event_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 120 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | u8 shpchp_handle_presence_change(u8 hp_slot, void *inst_id) |
| 124 | { |
| 125 | struct controller *ctrl = (struct controller *) inst_id; |
| 126 | struct slot *p_slot; |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 127 | u32 event_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | |
| 129 | /* Presence Change */ |
| 130 | dbg("shpchp: Presence/Notify input change.\n"); |
| 131 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
| 133 | |
| 134 | /* |
| 135 | * Save the presence state |
| 136 | */ |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 137 | p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save)); |
| 138 | if (p_slot->presence_save) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | /* |
| 140 | * Card Present |
| 141 | */ |
| 142 | info("Card present on Slot(%d)\n", ctrl->first_slot + hp_slot); |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 143 | event_type = INT_PRESENCE_ON; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | } else { |
| 145 | /* |
| 146 | * Not Present |
| 147 | */ |
| 148 | info("Card not present on Slot(%d)\n", ctrl->first_slot + hp_slot); |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 149 | event_type = INT_PRESENCE_OFF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | } |
| 151 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 152 | queue_interrupt_event(p_slot, event_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 154 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | u8 shpchp_handle_power_fault(u8 hp_slot, void *inst_id) |
| 158 | { |
| 159 | struct controller *ctrl = (struct controller *) inst_id; |
| 160 | struct slot *p_slot; |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 161 | u32 event_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | |
| 163 | /* Power fault */ |
| 164 | dbg("shpchp: Power fault interrupt received.\n"); |
| 165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
| 167 | |
| 168 | if ( !(p_slot->hpc_ops->query_power_fault(p_slot))) { |
| 169 | /* |
| 170 | * Power fault Cleared |
| 171 | */ |
| 172 | info("Power fault cleared on Slot(%d)\n", ctrl->first_slot + hp_slot); |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 173 | p_slot->status = 0x00; |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 174 | event_type = INT_POWER_FAULT_CLEAR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | } else { |
| 176 | /* |
| 177 | * Power fault |
| 178 | */ |
| 179 | info("Power fault on Slot(%d)\n", ctrl->first_slot + hp_slot); |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 180 | event_type = INT_POWER_FAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | /* set power fault status for this board */ |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 182 | p_slot->status = 0xFF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | info("power fault bit %x set\n", hp_slot); |
| 184 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 186 | queue_interrupt_event(p_slot, event_type); |
| 187 | |
| 188 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | } |
| 190 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | /* The following routines constitute the bulk of the |
| 192 | hotplug controller logic |
| 193 | */ |
rajesh.shah@intel.com | ee13833 | 2005-10-13 12:05:42 -0700 | [diff] [blame] | 194 | static int change_bus_speed(struct controller *ctrl, struct slot *p_slot, |
| 195 | enum pci_bus_speed speed) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | { |
rajesh.shah@intel.com | ee13833 | 2005-10-13 12:05:42 -0700 | [diff] [blame] | 197 | int rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | |
| 199 | dbg("%s: change to speed %d\n", __FUNCTION__, speed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed))) { |
| 201 | err("%s: Issue of set bus speed mode command failed\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | return WRONG_BUS_FREQUENCY; |
| 203 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | return rc; |
| 205 | } |
| 206 | |
rajesh.shah@intel.com | ee13833 | 2005-10-13 12:05:42 -0700 | [diff] [blame] | 207 | static int fix_bus_speed(struct controller *ctrl, struct slot *pslot, |
| 208 | u8 flag, enum pci_bus_speed asp, enum pci_bus_speed bsp, |
| 209 | enum pci_bus_speed msp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | { |
rajesh.shah@intel.com | ee13833 | 2005-10-13 12:05:42 -0700 | [diff] [blame] | 211 | int rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | |
| 213 | if (flag != 0) { /* Other slots on the same bus are occupied */ |
| 214 | if ( asp < bsp ) { |
| 215 | err("%s: speed of bus %x and adapter %x mismatch\n", __FUNCTION__, bsp, asp); |
| 216 | return WRONG_BUS_FREQUENCY; |
| 217 | } |
| 218 | } else { |
| 219 | /* Other slots on the same bus are empty */ |
| 220 | if (msp == bsp) { |
| 221 | /* if adapter_speed >= bus_speed, do nothing */ |
| 222 | if (asp < bsp) { |
| 223 | /* |
| 224 | * Try to lower bus speed to accommodate the adapter if other slots |
| 225 | * on the same controller are empty |
| 226 | */ |
| 227 | if ((rc = change_bus_speed(ctrl, pslot, asp))) |
| 228 | return rc; |
| 229 | } |
| 230 | } else { |
| 231 | if (asp < msp) { |
| 232 | if ((rc = change_bus_speed(ctrl, pslot, asp))) |
| 233 | return rc; |
| 234 | } else { |
| 235 | if ((rc = change_bus_speed(ctrl, pslot, msp))) |
| 236 | return rc; |
| 237 | } |
| 238 | } |
| 239 | } |
| 240 | return rc; |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * board_added - Called after a board has been added to the system. |
| 245 | * |
| 246 | * Turns power on for the board |
| 247 | * Configures board |
| 248 | * |
| 249 | */ |
rajesh.shah@intel.com | ee13833 | 2005-10-13 12:05:42 -0700 | [diff] [blame] | 250 | static int board_added(struct slot *p_slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | { |
| 252 | u8 hp_slot; |
| 253 | u8 slots_not_empty = 0; |
rajesh.shah@intel.com | ee13833 | 2005-10-13 12:05:42 -0700 | [diff] [blame] | 254 | int rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | enum pci_bus_speed adapter_speed, bus_speed, max_bus_speed; |
| 256 | u8 pi, mode; |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 257 | struct controller *ctrl = p_slot->ctrl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 259 | hp_slot = p_slot->device - ctrl->slot_device_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 261 | dbg("%s: p_slot->device, slot_offset, hp_slot = %d, %d ,%d\n", |
| 262 | __FUNCTION__, p_slot->device, |
| 263 | ctrl->slot_device_offset, hp_slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | /* Power on slot without connecting to bus */ |
| 266 | rc = p_slot->hpc_ops->power_on_slot(p_slot); |
| 267 | if (rc) { |
| 268 | err("%s: Failed to power on slot\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | return -1; |
| 270 | } |
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 ((ctrl->pci_dev->vendor == 0x8086) && (ctrl->pci_dev->device == 0x0332)) { |
| 273 | if (slots_not_empty) |
| 274 | return WRONG_BUS_FREQUENCY; |
| 275 | |
| 276 | if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz))) { |
| 277 | err("%s: Issue of set bus speed mode command failed\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | return WRONG_BUS_FREQUENCY; |
| 279 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | /* turn on board, blink green LED, turn off Amber LED */ |
| 282 | if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) { |
| 283 | err("%s: Issue of Slot Enable command failed\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | return rc; |
| 285 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | rc = p_slot->hpc_ops->get_adapter_speed(p_slot, &adapter_speed); |
| 289 | /* 0 = PCI 33Mhz, 1 = PCI 66 Mhz, 2 = PCI-X 66 PA, 4 = PCI-X 66 ECC, */ |
| 290 | /* 5 = PCI-X 133 PA, 7 = PCI-X 133 ECC, 0xa = PCI-X 133 Mhz 266, */ |
| 291 | /* 0xd = PCI-X 133 Mhz 533 */ |
| 292 | /* This encoding is different from the one used in cur_bus_speed & */ |
| 293 | /* max_bus_speed */ |
| 294 | |
| 295 | if (rc || adapter_speed == PCI_SPEED_UNKNOWN) { |
| 296 | err("%s: Can't get adapter speed or bus mode mismatch\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | return WRONG_BUS_FREQUENCY; |
| 298 | } |
| 299 | |
| 300 | rc = p_slot->hpc_ops->get_cur_bus_speed(p_slot, &bus_speed); |
| 301 | if (rc || bus_speed == PCI_SPEED_UNKNOWN) { |
| 302 | err("%s: Can't get bus operation speed\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | return WRONG_BUS_FREQUENCY; |
| 304 | } |
| 305 | |
| 306 | rc = p_slot->hpc_ops->get_max_bus_speed(p_slot, &max_bus_speed); |
| 307 | if (rc || max_bus_speed == PCI_SPEED_UNKNOWN) { |
| 308 | err("%s: Can't get max bus operation speed\n", __FUNCTION__); |
| 309 | max_bus_speed = bus_speed; |
| 310 | } |
| 311 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | if ((rc = p_slot->hpc_ops->get_prog_int(p_slot, &pi))) { |
| 313 | err("%s: Can't get controller programming interface, set it to 1\n", __FUNCTION__); |
| 314 | pi = 1; |
| 315 | } |
| 316 | |
| 317 | /* Check if there are other slots or devices on the same bus */ |
| 318 | if (!list_empty(&ctrl->pci_dev->subordinate->devices)) |
| 319 | slots_not_empty = 1; |
| 320 | |
| 321 | dbg("%s: slots_not_empty %d, pi %d\n", __FUNCTION__, |
| 322 | slots_not_empty, pi); |
| 323 | dbg("adapter_speed %d, bus_speed %d, max_bus_speed %d\n", |
| 324 | adapter_speed, bus_speed, max_bus_speed); |
| 325 | |
| 326 | if (pi == 2) { |
| 327 | dbg("%s: In PI = %d\n", __FUNCTION__, pi); |
| 328 | if ((rc = p_slot->hpc_ops->get_mode1_ECC_cap(p_slot, &mode))) { |
| 329 | err("%s: Can't get Mode1_ECC, set mode to 0\n", __FUNCTION__); |
| 330 | mode = 0; |
| 331 | } |
| 332 | |
| 333 | switch (adapter_speed) { |
| 334 | case PCI_SPEED_133MHz_PCIX_533: |
| 335 | case PCI_SPEED_133MHz_PCIX_266: |
| 336 | if ((bus_speed != adapter_speed) && |
| 337 | ((rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, adapter_speed, bus_speed, max_bus_speed)))) |
| 338 | return rc; |
| 339 | break; |
| 340 | case PCI_SPEED_133MHz_PCIX_ECC: |
| 341 | case PCI_SPEED_133MHz_PCIX: |
| 342 | if (mode) { /* Bus - Mode 1 ECC */ |
| 343 | if ((bus_speed != 0x7) && |
| 344 | ((rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, adapter_speed, bus_speed, max_bus_speed)))) |
| 345 | return rc; |
| 346 | } else { |
| 347 | if ((bus_speed != 0x4) && |
| 348 | ((rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, adapter_speed, bus_speed, max_bus_speed)))) |
| 349 | return rc; |
| 350 | } |
| 351 | break; |
| 352 | case PCI_SPEED_66MHz_PCIX_ECC: |
| 353 | case PCI_SPEED_66MHz_PCIX: |
| 354 | if (mode) { /* Bus - Mode 1 ECC */ |
| 355 | if ((bus_speed != 0x5) && |
| 356 | ((rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, adapter_speed, bus_speed, max_bus_speed)))) |
| 357 | return rc; |
| 358 | } else { |
| 359 | if ((bus_speed != 0x2) && |
| 360 | ((rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, adapter_speed, bus_speed, max_bus_speed)))) |
| 361 | return rc; |
| 362 | } |
| 363 | break; |
| 364 | case PCI_SPEED_66MHz: |
| 365 | if ((bus_speed != 0x1) && |
| 366 | ((rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, adapter_speed, bus_speed, max_bus_speed)))) |
| 367 | return rc; |
| 368 | break; |
| 369 | case PCI_SPEED_33MHz: |
| 370 | if (bus_speed > 0x0) { |
| 371 | if (slots_not_empty == 0) { |
| 372 | if ((rc = change_bus_speed(ctrl, p_slot, adapter_speed))) |
| 373 | return rc; |
| 374 | } else { |
| 375 | err("%s: speed of bus %x and adapter %x mismatch\n", __FUNCTION__, bus_speed, adapter_speed); |
| 376 | return WRONG_BUS_FREQUENCY; |
| 377 | } |
| 378 | } |
| 379 | break; |
| 380 | default: |
| 381 | err("%s: speed of bus %x and adapter %x mismatch\n", __FUNCTION__, bus_speed, adapter_speed); |
| 382 | return WRONG_BUS_FREQUENCY; |
| 383 | } |
| 384 | } else { |
| 385 | /* If adpater_speed == bus_speed, nothing to do here */ |
| 386 | dbg("%s: In PI = %d\n", __FUNCTION__, pi); |
| 387 | if ((adapter_speed != bus_speed) && |
| 388 | ((rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, adapter_speed, bus_speed, max_bus_speed)))) |
| 389 | return rc; |
| 390 | } |
| 391 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | /* turn on board, blink green LED, turn off Amber LED */ |
| 393 | if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) { |
| 394 | err("%s: Issue of Slot Enable command failed\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | return rc; |
| 396 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | /* Wait for ~1 second */ |
Kenji Kaneshige | 68c0b67 | 2006-02-21 15:45:42 -0800 | [diff] [blame] | 399 | msleep(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 401 | dbg("%s: slot status = %x\n", __FUNCTION__, p_slot->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | /* Check for a power fault */ |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 403 | if (p_slot->status == 0xFF) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | /* power fault occurred, but it was benign */ |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 405 | dbg("%s: power fault\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | rc = POWER_FAILURE; |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 407 | p_slot->status = 0; |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 408 | goto err_exit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | } |
| 410 | |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 411 | if (shpchp_configure_device(p_slot)) { |
| 412 | err("Cannot add device at 0x%x:0x%x\n", p_slot->bus, |
| 413 | p_slot->device); |
| 414 | goto err_exit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | } |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 416 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 417 | p_slot->status = 0; |
| 418 | p_slot->is_a_board = 0x01; |
| 419 | p_slot->pwr_save = 1; |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 420 | |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 421 | p_slot->hpc_ops->green_led_on(p_slot); |
| 422 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | return 0; |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 424 | |
| 425 | err_exit: |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 426 | /* turn off slot, turn on Amber LED, turn off Green LED */ |
| 427 | rc = p_slot->hpc_ops->slot_disable(p_slot); |
| 428 | if (rc) { |
| 429 | err("%s: Issue of Slot Disable command failed\n", __FUNCTION__); |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 430 | return rc; |
| 431 | } |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 432 | |
rajesh.shah@intel.com | dbd7a78 | 2005-10-13 12:05:36 -0700 | [diff] [blame] | 433 | return(rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | } |
| 435 | |
| 436 | |
| 437 | /** |
| 438 | * remove_board - Turns off slot and LED's |
| 439 | * |
| 440 | */ |
rajesh.shah@intel.com | ee13833 | 2005-10-13 12:05:42 -0700 | [diff] [blame] | 441 | static int remove_board(struct slot *p_slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | { |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 443 | struct controller *ctrl = p_slot->ctrl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | u8 hp_slot; |
rajesh.shah@intel.com | ee13833 | 2005-10-13 12:05:42 -0700 | [diff] [blame] | 445 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 447 | if (shpchp_unconfigure_device(p_slot)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | return(1); |
| 449 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 450 | hp_slot = p_slot->device - ctrl->slot_device_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); |
| 452 | |
| 453 | dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot); |
| 454 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | /* Change status to shutdown */ |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 456 | if (p_slot->is_a_board) |
| 457 | p_slot->status = 0x01; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | /* turn off slot, turn on Amber LED, turn off Green LED */ |
| 460 | rc = p_slot->hpc_ops->slot_disable(p_slot); |
| 461 | if (rc) { |
| 462 | err("%s: Issue of Slot Disable command failed\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | return rc; |
| 464 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | |
| 466 | rc = p_slot->hpc_ops->set_attention_status(p_slot, 0); |
| 467 | if (rc) { |
| 468 | err("%s: Issue of Set Attention command failed\n", __FUNCTION__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | return rc; |
| 470 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 472 | p_slot->pwr_save = 0; |
| 473 | p_slot->is_a_board = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
| 475 | return 0; |
| 476 | } |
| 477 | |
| 478 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 479 | struct pushbutton_work_info { |
| 480 | struct slot *p_slot; |
| 481 | struct work_struct work; |
| 482 | }; |
| 483 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | /** |
| 485 | * shpchp_pushbutton_thread |
| 486 | * |
| 487 | * Scheduled procedure to handle blocking stuff for the pushbuttons |
| 488 | * Handles all pending events and exits. |
| 489 | * |
| 490 | */ |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 491 | static void shpchp_pushbutton_thread(void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | { |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 493 | struct pushbutton_work_info *info = data; |
| 494 | struct slot *p_slot = info->p_slot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 496 | mutex_lock(&p_slot->lock); |
| 497 | switch (p_slot->state) { |
| 498 | case POWEROFF_STATE: |
| 499 | mutex_unlock(&p_slot->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | shpchp_disable_slot(p_slot); |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 501 | mutex_lock(&p_slot->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | p_slot->state = STATIC_STATE; |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 503 | break; |
| 504 | case POWERON_STATE: |
| 505 | mutex_unlock(&p_slot->lock); |
Kenji Kaneshige | d29aadd | 2006-01-26 09:59:24 +0900 | [diff] [blame] | 506 | if (shpchp_enable_slot(p_slot)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | p_slot->hpc_ops->green_led_off(p_slot); |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 508 | mutex_lock(&p_slot->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | p_slot->state = STATIC_STATE; |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 510 | break; |
| 511 | default: |
| 512 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | } |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 514 | mutex_unlock(&p_slot->lock); |
| 515 | |
| 516 | kfree(info); |
| 517 | } |
| 518 | |
| 519 | void queue_pushbutton_work(void *data) |
| 520 | { |
| 521 | struct slot *p_slot = data; |
| 522 | struct pushbutton_work_info *info; |
| 523 | |
| 524 | info = kmalloc(sizeof(*info), GFP_KERNEL); |
| 525 | if (!info) { |
| 526 | err("%s: Cannot allocate memory\n", __FUNCTION__); |
| 527 | return; |
| 528 | } |
| 529 | info->p_slot = p_slot; |
| 530 | INIT_WORK(&info->work, shpchp_pushbutton_thread, info); |
| 531 | |
| 532 | mutex_lock(&p_slot->lock); |
| 533 | switch (p_slot->state) { |
| 534 | case BLINKINGOFF_STATE: |
| 535 | p_slot->state = POWEROFF_STATE; |
| 536 | break; |
| 537 | case BLINKINGON_STATE: |
| 538 | p_slot->state = POWERON_STATE; |
| 539 | break; |
| 540 | default: |
| 541 | goto out; |
| 542 | } |
| 543 | queue_work(shpchp_wq, &info->work); |
| 544 | out: |
| 545 | mutex_unlock(&p_slot->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | } |
| 547 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | static int update_slot_info (struct slot *slot) |
| 549 | { |
| 550 | struct hotplug_slot_info *info; |
| 551 | int result; |
| 552 | |
| 553 | info = kmalloc(sizeof(*info), GFP_KERNEL); |
| 554 | if (!info) |
| 555 | return -ENOMEM; |
| 556 | |
| 557 | slot->hpc_ops->get_power_status(slot, &(info->power_status)); |
| 558 | slot->hpc_ops->get_attention_status(slot, &(info->attention_status)); |
| 559 | slot->hpc_ops->get_latch_status(slot, &(info->latch_status)); |
| 560 | slot->hpc_ops->get_adapter_status(slot, &(info->adapter_status)); |
| 561 | |
| 562 | result = pci_hp_change_slot_info(slot->hotplug_slot, info); |
| 563 | kfree (info); |
| 564 | return result; |
| 565 | } |
| 566 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 567 | /* |
| 568 | * Note: This function must be called with slot->lock held |
| 569 | */ |
| 570 | static void handle_button_press_event(struct slot *p_slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | u8 getstatus; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 574 | switch (p_slot->state) { |
| 575 | case STATIC_STATE: |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 576 | p_slot->hpc_ops->get_power_status(p_slot, &getstatus); |
| 577 | if (getstatus) { |
| 578 | p_slot->state = BLINKINGOFF_STATE; |
| 579 | info(msg_button_off, p_slot->number); |
| 580 | } else { |
| 581 | p_slot->state = BLINKINGON_STATE; |
| 582 | info(msg_button_on, p_slot->number); |
| 583 | } |
| 584 | /* blink green LED and turn off amber */ |
| 585 | p_slot->hpc_ops->green_led_blink(p_slot); |
| 586 | p_slot->hpc_ops->set_attention_status(p_slot, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 588 | schedule_delayed_work(&p_slot->work, 5*HZ); |
| 589 | break; |
| 590 | case BLINKINGOFF_STATE: |
| 591 | case BLINKINGON_STATE: |
| 592 | /* |
| 593 | * Cancel if we are still blinking; this means that we |
| 594 | * press the attention again before the 5 sec. limit |
| 595 | * expires to cancel hot-add or hot-remove |
| 596 | */ |
| 597 | info("Button cancel on Slot(%s)\n", p_slot->name); |
| 598 | dbg("%s: button cancel\n", __FUNCTION__); |
| 599 | cancel_delayed_work(&p_slot->work); |
| 600 | if (p_slot->state == BLINKINGOFF_STATE) |
| 601 | p_slot->hpc_ops->green_led_on(p_slot); |
| 602 | else |
| 603 | p_slot->hpc_ops->green_led_off(p_slot); |
| 604 | p_slot->hpc_ops->set_attention_status(p_slot, 0); |
| 605 | info(msg_button_cancel, p_slot->number); |
| 606 | p_slot->state = STATIC_STATE; |
| 607 | break; |
| 608 | case POWEROFF_STATE: |
| 609 | case POWERON_STATE: |
| 610 | /* |
| 611 | * Ignore if the slot is on power-on or power-off state; |
| 612 | * this means that the previous attention button action |
| 613 | * to hot-add or hot-remove is undergoing |
| 614 | */ |
| 615 | info("Button ignore on Slot(%s)\n", p_slot->name); |
| 616 | update_slot_info(p_slot); |
| 617 | break; |
| 618 | default: |
| 619 | warn("Not a valid state\n"); |
| 620 | break; |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | static void interrupt_event_handler(void *data) |
| 625 | { |
| 626 | struct event_info *info = data; |
| 627 | struct slot *p_slot = info->p_slot; |
| 628 | |
| 629 | mutex_lock(&p_slot->lock); |
| 630 | switch (info->event_type) { |
| 631 | case INT_BUTTON_PRESS: |
| 632 | handle_button_press_event(p_slot); |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 633 | break; |
| 634 | case INT_POWER_FAULT: |
| 635 | dbg("%s: power fault\n", __FUNCTION__); |
| 636 | p_slot->hpc_ops->set_attention_status(p_slot, 1); |
| 637 | p_slot->hpc_ops->green_led_off(p_slot); |
| 638 | break; |
| 639 | default: |
| 640 | update_slot_info(p_slot); |
| 641 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | } |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 643 | mutex_unlock(&p_slot->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | |
Kenji Kaneshige | f7391f5 | 2006-02-21 15:45:45 -0800 | [diff] [blame] | 645 | kfree(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | } |
| 647 | |
| 648 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 649 | static int shpchp_enable_slot (struct slot *p_slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | { |
| 651 | u8 getstatus = 0; |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 652 | int rc, retval = -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | |
| 654 | /* Check to see if (latch closed, card present, power off) */ |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 655 | mutex_lock(&p_slot->ctrl->crit_sect); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); |
| 657 | if (rc || !getstatus) { |
| 658 | info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 659 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | } |
| 661 | rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
| 662 | if (rc || getstatus) { |
| 663 | info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 664 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | } |
| 666 | rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); |
| 667 | if (rc || getstatus) { |
| 668 | info("%s: already enabled on slot(%x)\n", __FUNCTION__, p_slot->number); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 669 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 672 | p_slot->is_a_board = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | |
| 674 | /* We have to save the presence info for these slots */ |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 675 | p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save)); |
| 676 | p_slot->hpc_ops->get_power_status(p_slot, &(p_slot->pwr_save)); |
| 677 | dbg("%s: p_slot->pwr_save %x\n", __FUNCTION__, p_slot->pwr_save); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | |
Keck, David | 53044f3 | 2006-01-16 15:22:36 -0600 | [diff] [blame] | 680 | if(((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD) || |
| 681 | (p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458)) |
| 682 | && p_slot->ctrl->num_slots == 1) { |
| 683 | /* handle amd pogo errata; this must be done before enable */ |
| 684 | amd_pogo_errata_save_misc_reg(p_slot); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 685 | retval = board_added(p_slot); |
Keck, David | 53044f3 | 2006-01-16 15:22:36 -0600 | [diff] [blame] | 686 | /* handle amd pogo errata; this must be done after enable */ |
| 687 | amd_pogo_errata_restore_misc_reg(p_slot); |
| 688 | } else |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 689 | retval = board_added(p_slot); |
Keck, David | 53044f3 | 2006-01-16 15:22:36 -0600 | [diff] [blame] | 690 | |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 691 | if (retval) { |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 692 | p_slot->hpc_ops->get_adapter_status(p_slot, |
| 693 | &(p_slot->presence_save)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | } |
| 696 | |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 697 | update_slot_info(p_slot); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 698 | out: |
| 699 | mutex_unlock(&p_slot->ctrl->crit_sect); |
| 700 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | } |
| 702 | |
| 703 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 704 | static int shpchp_disable_slot (struct slot *p_slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | u8 getstatus = 0; |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 707 | int rc, retval = -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | |
| 709 | if (!p_slot->ctrl) |
Dely Sy | ee17fd9 | 2005-05-05 11:57:25 -0700 | [diff] [blame] | 710 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | /* Check to see if (latch closed, card present, power on) */ |
Ingo Molnar | 6aa4cdd | 2006-01-13 16:02:15 +0100 | [diff] [blame] | 713 | mutex_lock(&p_slot->ctrl->crit_sect); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 715 | rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); |
| 716 | if (rc || !getstatus) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 718 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | } |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 720 | rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); |
| 721 | if (rc || getstatus) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 723 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | } |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 725 | rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); |
| 726 | if (rc || !getstatus) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | info("%s: already disabled slot(%x)\n", __FUNCTION__, p_slot->number); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 728 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 731 | retval = remove_board(p_slot); |
rajesh.shah@intel.com | 2178bfa | 2005-10-13 12:05:41 -0700 | [diff] [blame] | 732 | update_slot_info(p_slot); |
Kenji Kaneshige | ef3be54 | 2006-01-26 10:00:33 +0900 | [diff] [blame] | 733 | out: |
| 734 | mutex_unlock(&p_slot->ctrl->crit_sect); |
| 735 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | } |
| 737 | |
Kenji Kaneshige | a246fa4 | 2006-02-21 15:45:48 -0800 | [diff] [blame] | 738 | int shpchp_sysfs_enable_slot(struct slot *p_slot) |
| 739 | { |
| 740 | int retval = -ENODEV; |
| 741 | |
| 742 | mutex_lock(&p_slot->lock); |
| 743 | switch (p_slot->state) { |
| 744 | case BLINKINGON_STATE: |
| 745 | cancel_delayed_work(&p_slot->work); |
| 746 | case STATIC_STATE: |
| 747 | p_slot->state = POWERON_STATE; |
| 748 | mutex_unlock(&p_slot->lock); |
| 749 | retval = shpchp_enable_slot(p_slot); |
| 750 | mutex_lock(&p_slot->lock); |
| 751 | p_slot->state = STATIC_STATE; |
| 752 | break; |
| 753 | case POWERON_STATE: |
| 754 | info("Slot %s is already in powering on state\n", |
| 755 | p_slot->name); |
| 756 | break; |
| 757 | case BLINKINGOFF_STATE: |
| 758 | case POWEROFF_STATE: |
| 759 | info("Already enabled on slot %s\n", p_slot->name); |
| 760 | break; |
| 761 | default: |
| 762 | err("Not a valid state on slot %s\n", p_slot->name); |
| 763 | break; |
| 764 | } |
| 765 | mutex_unlock(&p_slot->lock); |
| 766 | |
| 767 | return retval; |
| 768 | } |
| 769 | |
| 770 | int shpchp_sysfs_disable_slot(struct slot *p_slot) |
| 771 | { |
| 772 | int retval = -ENODEV; |
| 773 | |
| 774 | mutex_lock(&p_slot->lock); |
| 775 | switch (p_slot->state) { |
| 776 | case BLINKINGOFF_STATE: |
| 777 | cancel_delayed_work(&p_slot->work); |
| 778 | case STATIC_STATE: |
| 779 | p_slot->state = POWEROFF_STATE; |
| 780 | mutex_unlock(&p_slot->lock); |
| 781 | retval = shpchp_disable_slot(p_slot); |
| 782 | mutex_lock(&p_slot->lock); |
| 783 | p_slot->state = STATIC_STATE; |
| 784 | break; |
| 785 | case POWEROFF_STATE: |
| 786 | info("Slot %s is already in powering off state\n", |
| 787 | p_slot->name); |
| 788 | break; |
| 789 | case BLINKINGON_STATE: |
| 790 | case POWERON_STATE: |
| 791 | info("Already disabled on slot %s\n", p_slot->name); |
| 792 | break; |
| 793 | default: |
| 794 | err("Not a valid state on slot %s\n", p_slot->name); |
| 795 | break; |
| 796 | } |
| 797 | mutex_unlock(&p_slot->lock); |
| 798 | |
| 799 | return retval; |
| 800 | } |