2 * Compaq Hot Plug Controller Driver
4 * Copyright (C) 1995,2001 Compaq Computer Corporation
5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
6 * Copyright (C) 2001 IBM
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or (at
13 * your option) any later version.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
18 * NON INFRINGEMENT. See the GNU General Public License for more
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 * Send feedback to <greg@kroah.com>
31 #include <linux/interrupt.h>
32 #include <asm/io.h> /* for read? and write? functions */
33 #include <linux/delay.h> /* for delays */
34 #include <linux/mutex.h>
36 #define MY_NAME "cpqphp"
38 #define dbg(fmt, arg...) do { if (cpqhp_debug) printk(KERN_DEBUG "%s: " fmt , MY_NAME , ## arg); } while (0)
39 #define err(format, arg...) printk(KERN_ERR "%s: " format , MY_NAME , ## arg)
40 #define info(format, arg...) printk(KERN_INFO "%s: " format , MY_NAME , ## arg)
41 #define warn(format, arg...) printk(KERN_WARNING "%s: " format , MY_NAME , ## arg)
45 struct smbios_system_slot {
52 u8 slot_current_usage;
57 } __attribute__ ((packed));
59 /* offsets to the smbios generic type based on the above structure layout */
60 enum smbios_system_slot_offsets {
61 SMBIOS_SLOT_GENERIC_TYPE = offsetof(struct smbios_system_slot, type),
62 SMBIOS_SLOT_GENERIC_LENGTH = offsetof(struct smbios_system_slot, length),
63 SMBIOS_SLOT_GENERIC_HANDLE = offsetof(struct smbios_system_slot, handle),
64 SMBIOS_SLOT_NAME_STRING_NUM = offsetof(struct smbios_system_slot, name_string_num),
65 SMBIOS_SLOT_TYPE = offsetof(struct smbios_system_slot, slot_type),
66 SMBIOS_SLOT_WIDTH = offsetof(struct smbios_system_slot, slot_width),
67 SMBIOS_SLOT_CURRENT_USAGE = offsetof(struct smbios_system_slot, slot_current_usage),
68 SMBIOS_SLOT_LENGTH = offsetof(struct smbios_system_slot, slot_length),
69 SMBIOS_SLOT_NUMBER = offsetof(struct smbios_system_slot, slot_number),
70 SMBIOS_SLOT_PROPERTIES1 = offsetof(struct smbios_system_slot, properties1),
71 SMBIOS_SLOT_PROPERTIES2 = offsetof(struct smbios_system_slot, properties2),
74 struct smbios_generic {
78 } __attribute__ ((packed));
80 /* offsets to the smbios generic type based on the above structure layout */
81 enum smbios_generic_offsets {
82 SMBIOS_GENERIC_TYPE = offsetof(struct smbios_generic, type),
83 SMBIOS_GENERIC_LENGTH = offsetof(struct smbios_generic, length),
84 SMBIOS_GENERIC_HANDLE = offsetof(struct smbios_generic, handle),
87 struct smbios_entry_point {
100 u16 number_of_entrys;
102 } __attribute__ ((packed));
104 /* offsets to the smbios entry point based on the above structure layout */
105 enum smbios_entry_point_offsets {
106 ANCHOR = offsetof(struct smbios_entry_point, anchor[0]),
107 EP_CHECKSUM = offsetof(struct smbios_entry_point, ep_checksum),
108 EP_LENGTH = offsetof(struct smbios_entry_point, ep_length),
109 MAJOR_VERSION = offsetof(struct smbios_entry_point, major_version),
110 MINOR_VERSION = offsetof(struct smbios_entry_point, minor_version),
111 MAX_SIZE_ENTRY = offsetof(struct smbios_entry_point, max_size_entry),
112 EP_REV = offsetof(struct smbios_entry_point, ep_rev),
113 INT_ANCHOR = offsetof(struct smbios_entry_point, int_anchor[0]),
114 INT_CHECKSUM = offsetof(struct smbios_entry_point, int_checksum),
115 ST_LENGTH = offsetof(struct smbios_entry_point, st_length),
116 ST_ADDRESS = offsetof(struct smbios_entry_point, st_address),
117 NUMBER_OF_ENTRYS = offsetof(struct smbios_entry_point, number_of_entrys),
118 BCD_REV = offsetof(struct smbios_entry_point, bcd_rev),
121 struct ctrl_reg { /* offset */
122 u8 slot_RST; /* 0x00 */
123 u8 slot_enable; /* 0x01 */
125 u32 led_control; /* 0x04 */
126 u32 int_input_clear; /* 0x08 */
127 u32 int_mask; /* 0x0a */
128 u8 reserved0; /* 0x10 */
129 u8 reserved1; /* 0x11 */
130 u8 reserved2; /* 0x12 */
131 u8 gen_output_AB; /* 0x13 */
132 u32 non_int_input; /* 0x14 */
133 u32 reserved3; /* 0x18 */
134 u32 reserved4; /* 0x1a */
135 u32 reserved5; /* 0x20 */
136 u8 reserved6; /* 0x24 */
137 u8 reserved7; /* 0x25 */
138 u16 reserved8; /* 0x26 */
139 u8 slot_mask; /* 0x28 */
140 u8 reserved9; /* 0x29 */
141 u8 reserved10; /* 0x2a */
142 u8 reserved11; /* 0x2b */
143 u8 slot_SERR; /* 0x2c */
144 u8 slot_power; /* 0x2d */
145 u8 reserved12; /* 0x2e */
146 u8 reserved13; /* 0x2f */
147 u8 next_curr_freq; /* 0x30 */
148 u8 reset_freq_mode; /* 0x31 */
149 } __attribute__ ((packed));
151 /* offsets to the controller registers based on the above structure layout */
153 SLOT_RST = offsetof(struct ctrl_reg, slot_RST),
154 SLOT_ENABLE = offsetof(struct ctrl_reg, slot_enable),
155 MISC = offsetof(struct ctrl_reg, misc),
156 LED_CONTROL = offsetof(struct ctrl_reg, led_control),
157 INT_INPUT_CLEAR = offsetof(struct ctrl_reg, int_input_clear),
158 INT_MASK = offsetof(struct ctrl_reg, int_mask),
159 CTRL_RESERVED0 = offsetof(struct ctrl_reg, reserved0),
160 CTRL_RESERVED1 = offsetof(struct ctrl_reg, reserved1),
161 CTRL_RESERVED2 = offsetof(struct ctrl_reg, reserved1),
162 GEN_OUTPUT_AB = offsetof(struct ctrl_reg, gen_output_AB),
163 NON_INT_INPUT = offsetof(struct ctrl_reg, non_int_input),
164 CTRL_RESERVED3 = offsetof(struct ctrl_reg, reserved3),
165 CTRL_RESERVED4 = offsetof(struct ctrl_reg, reserved4),
166 CTRL_RESERVED5 = offsetof(struct ctrl_reg, reserved5),
167 CTRL_RESERVED6 = offsetof(struct ctrl_reg, reserved6),
168 CTRL_RESERVED7 = offsetof(struct ctrl_reg, reserved7),
169 CTRL_RESERVED8 = offsetof(struct ctrl_reg, reserved8),
170 SLOT_MASK = offsetof(struct ctrl_reg, slot_mask),
171 CTRL_RESERVED9 = offsetof(struct ctrl_reg, reserved9),
172 CTRL_RESERVED10 = offsetof(struct ctrl_reg, reserved10),
173 CTRL_RESERVED11 = offsetof(struct ctrl_reg, reserved11),
174 SLOT_SERR = offsetof(struct ctrl_reg, slot_SERR),
175 SLOT_POWER = offsetof(struct ctrl_reg, slot_power),
176 NEXT_CURR_FREQ = offsetof(struct ctrl_reg, next_curr_freq),
177 RESET_FREQ_MODE = offsetof(struct ctrl_reg, reset_freq_mode),
187 u8 number_of_entries;
191 } __attribute__ ((packed));
193 /* offsets to the hotplug resource table registers based on the above
197 SIG0 = offsetof(struct hrt, sig0),
198 SIG1 = offsetof(struct hrt, sig1),
199 SIG2 = offsetof(struct hrt, sig2),
200 SIG3 = offsetof(struct hrt, sig3),
201 UNUSED_IRQ = offsetof(struct hrt, unused_IRQ),
202 PCIIRQ = offsetof(struct hrt, PCIIRQ),
203 NUMBER_OF_ENTRIES = offsetof(struct hrt, number_of_entries),
204 REVISION = offsetof(struct hrt, revision),
205 HRT_RESERVED1 = offsetof(struct hrt, reserved1),
206 HRT_RESERVED2 = offsetof(struct hrt, reserved2),
220 } __attribute__ ((packed));
222 /* offsets to the hotplug slot resource table registers based on the above
225 enum slot_rt_offsets {
226 DEV_FUNC = offsetof(struct slot_rt, dev_func),
227 PRIMARY_BUS = offsetof(struct slot_rt, primary_bus),
228 SECONDARY_BUS = offsetof(struct slot_rt, secondary_bus),
229 MAX_BUS = offsetof(struct slot_rt, max_bus),
230 IO_BASE = offsetof(struct slot_rt, io_base),
231 IO_LENGTH = offsetof(struct slot_rt, io_length),
232 MEM_BASE = offsetof(struct slot_rt, mem_base),
233 MEM_LENGTH = offsetof(struct slot_rt, mem_length),
234 PRE_MEM_BASE = offsetof(struct slot_rt, pre_mem_base),
235 PRE_MEM_LENGTH = offsetof(struct slot_rt, pre_mem_length),
239 struct pci_func *next;
248 u32 base_length[0x06];
251 u32 config_space[0x20];
252 struct pci_resource *mem_head;
253 struct pci_resource *p_mem_head;
254 struct pci_resource *io_head;
255 struct pci_resource *bus_head;
256 struct timer_list *p_task_event;
257 struct pci_dev* pci_dev;
272 struct timer_list task_event;
274 struct controller *ctrl;
275 void __iomem *p_sm_slot;
276 struct hotplug_slot *hotplug_slot;
279 struct pci_resource {
280 struct pci_resource * next;
291 struct controller *next;
293 struct mutex crit_sect; /* critical section mutex */
294 void __iomem *hpc_reg; /* cookie for our pci controller location */
295 struct pci_resource *mem_head;
296 struct pci_resource *p_mem_head;
297 struct pci_resource *io_head;
298 struct pci_resource *bus_head;
299 struct pci_dev *pci_dev;
300 struct pci_bus *pci_bus;
301 struct event_info event_queue[10];
306 u8 bus; /* bus number for the pci hotplug controller */
308 u8 slot_device_offset;
312 enum pci_bus_speed speed;
313 enum pci_bus_speed speed_capability;
314 u8 push_button; /* 0 = no pushbutton, 1 = pushbutton present */
315 u8 slot_switch_type; /* 0 = no switch, 1 = switch present */
316 u8 defeature_PHP; /* 0 = PHP not supported, 1 = PHP supported */
317 u8 alternate_base_address; /* 0 = not supported, 1 = supported */
318 u8 pci_config_space; /* Index/data access to working registers 0 = not supported, 1 = supported */
319 u8 pcix_speed_capability; /* PCI-X */
320 u8 pcix_support; /* PCI-X */
322 struct work_struct int_task_event;
323 wait_queue_head_t queue; /* sleep & wake process */
324 struct dentry *dentry; /* debugfs dentry */
333 struct resource_lists {
334 struct pci_resource *mem_head;
335 struct pci_resource *p_mem_head;
336 struct pci_resource *io_head;
337 struct pci_resource *bus_head;
338 struct irq_mapping *irqs;
341 #define ROM_PHY_ADDR 0x0F0000
342 #define ROM_PHY_LEN 0x00ffff
344 #define PCI_HPC_ID 0xA0F7
345 #define PCI_SUB_HPC_ID 0xA2F7
346 #define PCI_SUB_HPC_ID2 0xA2F8
347 #define PCI_SUB_HPC_ID3 0xA2F9
348 #define PCI_SUB_HPC_ID_INTC 0xA2FA
349 #define PCI_SUB_HPC_ID4 0xA2FD
351 #define INT_BUTTON_IGNORE 0
352 #define INT_PRESENCE_ON 1
353 #define INT_PRESENCE_OFF 2
354 #define INT_SWITCH_CLOSE 3
355 #define INT_SWITCH_OPEN 4
356 #define INT_POWER_FAULT 5
357 #define INT_POWER_FAULT_CLEAR 6
358 #define INT_BUTTON_PRESS 7
359 #define INT_BUTTON_RELEASE 8
360 #define INT_BUTTON_CANCEL 9
362 #define STATIC_STATE 0
363 #define BLINKINGON_STATE 1
364 #define BLINKINGOFF_STATE 2
365 #define POWERON_STATE 3
366 #define POWEROFF_STATE 4
368 #define PCISLOT_INTERLOCK_CLOSED 0x00000001
369 #define PCISLOT_ADAPTER_PRESENT 0x00000002
370 #define PCISLOT_POWERED 0x00000004
371 #define PCISLOT_66_MHZ_OPERATION 0x00000008
372 #define PCISLOT_64_BIT_OPERATION 0x00000010
373 #define PCISLOT_REPLACE_SUPPORTED 0x00000020
374 #define PCISLOT_ADD_SUPPORTED 0x00000040
375 #define PCISLOT_INTERLOCK_SUPPORTED 0x00000080
376 #define PCISLOT_66_MHZ_SUPPORTED 0x00000100
377 #define PCISLOT_64_BIT_SUPPORTED 0x00000200
379 #define PCI_TO_PCI_BRIDGE_CLASS 0x00060400
381 #define INTERLOCK_OPEN 0x00000002
382 #define ADD_NOT_SUPPORTED 0x00000003
383 #define CARD_FUNCTIONING 0x00000005
384 #define ADAPTER_NOT_SAME 0x00000006
385 #define NO_ADAPTER_PRESENT 0x00000009
386 #define NOT_ENOUGH_RESOURCES 0x0000000B
387 #define DEVICE_TYPE_NOT_SUPPORTED 0x0000000C
388 #define POWER_FAILURE 0x0000000E
390 #define REMOVE_NOT_SUPPORTED 0x00000003
396 #define msg_initialization_err "Initialization failure, error=%d\n"
397 #define msg_HPC_rev_error "Unsupported revision of the PCI hot plug controller found.\n"
398 #define msg_HPC_non_compaq_or_intel "The PCI hot plug controller is not supported by this driver.\n"
399 #define msg_HPC_not_supported "this system is not supported by this version of cpqphpd. Upgrade to a newer version of cpqphpd\n"
400 #define msg_unable_to_save "unable to store PCI hot plug add resource information. This system must be rebooted before adding any PCI devices.\n"
401 #define msg_button_on "PCI slot #%d - powering on due to button press.\n"
402 #define msg_button_off "PCI slot #%d - powering off due to button press.\n"
403 #define msg_button_cancel "PCI slot #%d - action canceled due to button press.\n"
404 #define msg_button_ignore "PCI slot #%d - button press ignored. (action in progress...)\n"
407 /* debugfs functions for the hotplug controller info */
408 extern void cpqhp_initialize_debugfs(void);
409 extern void cpqhp_shutdown_debugfs(void);
410 extern void cpqhp_create_debugfs_files(struct controller *ctrl);
411 extern void cpqhp_remove_debugfs_files(struct controller *ctrl);
413 /* controller functions */
414 extern void cpqhp_pushbutton_thread(unsigned long event_pointer);
415 extern irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data);
416 extern int cpqhp_find_available_resources(struct controller *ctrl,
417 void __iomem *rom_start);
418 extern int cpqhp_event_start_thread(void);
419 extern void cpqhp_event_stop_thread(void);
420 extern struct pci_func *cpqhp_slot_create(unsigned char busnumber);
421 extern struct pci_func *cpqhp_slot_find(unsigned char bus, unsigned char device,
422 unsigned char index);
423 extern int cpqhp_process_SI(struct controller *ctrl, struct pci_func *func);
424 extern int cpqhp_process_SS(struct controller *ctrl, struct pci_func *func);
425 extern int cpqhp_hardware_test(struct controller *ctrl, int test_num);
427 /* resource functions */
428 extern int cpqhp_resource_sort_and_combine (struct pci_resource **head);
431 extern int cpqhp_set_irq(u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num);
432 extern int cpqhp_get_bus_dev(struct controller *ctrl, u8 *bus_num, u8 *dev_num,
434 extern int cpqhp_save_config(struct controller *ctrl, int busnumber,
436 extern int cpqhp_save_base_addr_length(struct controller *ctrl,
437 struct pci_func *func);
438 extern int cpqhp_save_used_resources(struct controller *ctrl,
439 struct pci_func *func);
440 extern int cpqhp_configure_board(struct controller *ctrl,
441 struct pci_func *func);
442 extern int cpqhp_save_slot_config(struct controller *ctrl,
443 struct pci_func *new_slot);
444 extern int cpqhp_valid_replace(struct controller *ctrl, struct pci_func *func);
445 extern void cpqhp_destroy_board_resources(struct pci_func *func);
446 extern int cpqhp_return_board_resources (struct pci_func *func,
447 struct resource_lists *resources);
448 extern void cpqhp_destroy_resource_list(struct resource_lists *resources);
449 extern int cpqhp_configure_device(struct controller *ctrl,
450 struct pci_func *func);
451 extern int cpqhp_unconfigure_device(struct pci_func *func);
453 /* Global variables */
454 extern int cpqhp_debug;
455 extern int cpqhp_legacy_mode;
456 extern struct controller *cpqhp_ctrl_list;
457 extern struct pci_func *cpqhp_slot_list[256];
458 extern struct irq_routing_table *cpqhp_routing_table;
460 /* these can be gotten rid of, but for debugging they are purty */
461 extern u8 cpqhp_nic_irq;
462 extern u8 cpqhp_disk_irq;
465 /* inline functions */
467 static inline const char *slot_name(struct slot *slot)
469 return hotplug_slot_name(slot->hotplug_slot);
475 * Puts node back in the resource list pointed to by head
477 static inline void return_resource(struct pci_resource **head,
478 struct pci_resource *node)
486 static inline void set_SOGO(struct controller *ctrl)
490 misc = readw(ctrl->hpc_reg + MISC);
491 misc = (misc | 0x0001) & 0xFFFB;
492 writew(misc, ctrl->hpc_reg + MISC);
496 static inline void amber_LED_on(struct controller *ctrl, u8 slot)
500 led_control = readl(ctrl->hpc_reg + LED_CONTROL);
501 led_control |= (0x01010000L << slot);
502 writel(led_control, ctrl->hpc_reg + LED_CONTROL);
506 static inline void amber_LED_off(struct controller *ctrl, u8 slot)
510 led_control = readl(ctrl->hpc_reg + LED_CONTROL);
511 led_control &= ~(0x01010000L << slot);
512 writel(led_control, ctrl->hpc_reg + LED_CONTROL);
516 static inline int read_amber_LED(struct controller *ctrl, u8 slot)
520 led_control = readl(ctrl->hpc_reg + LED_CONTROL);
521 led_control &= (0x01010000L << slot);
523 return led_control ? 1 : 0;
527 static inline void green_LED_on(struct controller *ctrl, u8 slot)
531 led_control = readl(ctrl->hpc_reg + LED_CONTROL);
532 led_control |= 0x0101L << slot;
533 writel(led_control, ctrl->hpc_reg + LED_CONTROL);
536 static inline void green_LED_off(struct controller *ctrl, u8 slot)
540 led_control = readl(ctrl->hpc_reg + LED_CONTROL);
541 led_control &= ~(0x0101L << slot);
542 writel(led_control, ctrl->hpc_reg + LED_CONTROL);
546 static inline void green_LED_blink(struct controller *ctrl, u8 slot)
550 led_control = readl(ctrl->hpc_reg + LED_CONTROL);
551 led_control &= ~(0x0101L << slot);
552 led_control |= (0x0001L << slot);
553 writel(led_control, ctrl->hpc_reg + LED_CONTROL);
557 static inline void slot_disable(struct controller *ctrl, u8 slot)
561 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
562 slot_enable &= ~(0x01 << slot);
563 writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE);
567 static inline void slot_enable(struct controller *ctrl, u8 slot)
571 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
572 slot_enable |= (0x01 << slot);
573 writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE);
577 static inline u8 is_slot_enabled(struct controller *ctrl, u8 slot)
581 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
582 slot_enable &= (0x01 << slot);
583 return slot_enable ? 1 : 0;
587 static inline u8 read_slot_enable(struct controller *ctrl)
589 return readb(ctrl->hpc_reg + SLOT_ENABLE);
594 * get_controller_speed - find the current frequency/mode of controller.
596 * @ctrl: controller to get frequency/mode for.
598 * Returns controller speed.
600 static inline u8 get_controller_speed(struct controller *ctrl)
605 if (ctrl->pcix_support) {
606 curr_freq = readb(ctrl->hpc_reg + NEXT_CURR_FREQ);
607 if ((curr_freq & 0xB0) == 0xB0)
608 return PCI_SPEED_133MHz_PCIX;
609 if ((curr_freq & 0xA0) == 0xA0)
610 return PCI_SPEED_100MHz_PCIX;
611 if ((curr_freq & 0x90) == 0x90)
612 return PCI_SPEED_66MHz_PCIX;
613 if (curr_freq & 0x10)
614 return PCI_SPEED_66MHz;
616 return PCI_SPEED_33MHz;
619 misc = readw(ctrl->hpc_reg + MISC);
620 return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz;
625 * get_adapter_speed - find the max supported frequency/mode of adapter.
627 * @ctrl: hotplug controller.
628 * @hp_slot: hotplug slot where adapter is installed.
630 * Returns adapter speed.
632 static inline u8 get_adapter_speed(struct controller *ctrl, u8 hp_slot)
634 u32 temp_dword = readl(ctrl->hpc_reg + NON_INT_INPUT);
635 dbg("slot: %d, PCIXCAP: %8x\n", hp_slot, temp_dword);
636 if (ctrl->pcix_support) {
637 if (temp_dword & (0x10000 << hp_slot))
638 return PCI_SPEED_133MHz_PCIX;
639 if (temp_dword & (0x100 << hp_slot))
640 return PCI_SPEED_66MHz_PCIX;
643 if (temp_dword & (0x01 << hp_slot))
644 return PCI_SPEED_66MHz;
646 return PCI_SPEED_33MHz;
649 static inline void enable_slot_power(struct controller *ctrl, u8 slot)
653 slot_power = readb(ctrl->hpc_reg + SLOT_POWER);
654 slot_power |= (0x01 << slot);
655 writeb(slot_power, ctrl->hpc_reg + SLOT_POWER);
658 static inline void disable_slot_power(struct controller *ctrl, u8 slot)
662 slot_power = readb(ctrl->hpc_reg + SLOT_POWER);
663 slot_power &= ~(0x01 << slot);
664 writeb(slot_power, ctrl->hpc_reg + SLOT_POWER);
668 static inline int cpq_get_attention_status(struct controller *ctrl, struct slot *slot)
672 hp_slot = slot->device - ctrl->slot_device_offset;
674 return read_amber_LED(ctrl, hp_slot);
678 static inline int get_slot_enabled(struct controller *ctrl, struct slot *slot)
682 hp_slot = slot->device - ctrl->slot_device_offset;
684 return is_slot_enabled(ctrl, hp_slot);
688 static inline int cpq_get_latch_status(struct controller *ctrl,
694 hp_slot = slot->device - ctrl->slot_device_offset;
695 dbg("%s: slot->device = %d, ctrl->slot_device_offset = %d \n",
696 __func__, slot->device, ctrl->slot_device_offset);
698 status = (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot));
700 return(status == 0) ? 1 : 0;
704 static inline int get_presence_status(struct controller *ctrl,
707 int presence_save = 0;
711 hp_slot = slot->device - ctrl->slot_device_offset;
713 tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR);
714 presence_save = (int) ((((~tempdword) >> 23) | ((~tempdword) >> 15))
717 return presence_save;
720 static inline int wait_for_ctrl_irq(struct controller *ctrl)
722 DECLARE_WAITQUEUE(wait, current);
725 dbg("%s - start\n", __func__);
726 add_wait_queue(&ctrl->queue, &wait);
727 /* Sleep for up to 1 second to wait for the LED to change. */
728 msleep_interruptible(1000);
729 remove_wait_queue(&ctrl->queue, &wait);
730 if (signal_pending(current))
733 dbg("%s - end\n", __func__);
737 #include <asm/pci_x86.h>
738 static inline int cpqhp_routing_table_length(void)
740 BUG_ON(cpqhp_routing_table == NULL);
741 return ((cpqhp_routing_table->size - sizeof(struct irq_routing_table)) /
742 sizeof(struct irq_info));