Release 4.11 drivers/pci/hotplug/cpqphp.h

/*
 * Compaq Hot Plug Controller Driver
 *
 * Copyright (C) 1995,2001 Compaq Computer Corporation
 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
 * Copyright (C) 2001 IBM
 *
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 * NON INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Send feedback to <greg@kroah.com>
 *
 */
#ifndef _CPQPHP_H

#define _CPQPHP_H

#include <linux/interrupt.h>
#include <asm/io.h>		/* for read? and write? functions */
#include <linux/delay.h>	/* for delays */
#include <linux/mutex.h>
#include <linux/sched/signal.h>	/* for signal_pending() */


#define MY_NAME	"cpqphp"


#define dbg(fmt, arg...) do { if (cpqhp_debug) printk(KERN_DEBUG "%s: " fmt, MY_NAME, ## arg); } while (0)

#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME, ## arg)

#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME, ## arg)

#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME, ## arg)




struct smbios_system_slot {
	
u8 type;
	
u8 length;
	
u16 handle;
	
u8 name_string_num;
	
u8 slot_type;
	
u8 slot_width;
	
u8 slot_current_usage;
	
u8 slot_length;
	
u16 slot_number;
	
u8 properties1;
	
u8 properties2;
} __attribute__ ((packed));

/* offsets to the smbios generic type based on the above structure layout */

enum smbios_system_slot_offsets {
	
SMBIOS_SLOT_GENERIC_TYPE =	offsetof(struct smbios_system_slot, type),
	
SMBIOS_SLOT_GENERIC_LENGTH =	offsetof(struct smbios_system_slot, length),
	
SMBIOS_SLOT_GENERIC_HANDLE =	offsetof(struct smbios_system_slot, handle),
	
SMBIOS_SLOT_NAME_STRING_NUM =	offsetof(struct smbios_system_slot, name_string_num),
	
SMBIOS_SLOT_TYPE =		offsetof(struct smbios_system_slot, slot_type),
	
SMBIOS_SLOT_WIDTH =		offsetof(struct smbios_system_slot, slot_width),
	
SMBIOS_SLOT_CURRENT_USAGE =	offsetof(struct smbios_system_slot, slot_current_usage),
	
SMBIOS_SLOT_LENGTH =		offsetof(struct smbios_system_slot, slot_length),
	
SMBIOS_SLOT_NUMBER =		offsetof(struct smbios_system_slot, slot_number),
	
SMBIOS_SLOT_PROPERTIES1 =	offsetof(struct smbios_system_slot, properties1),
	
SMBIOS_SLOT_PROPERTIES2 =	offsetof(struct smbios_system_slot, properties2),
};


struct smbios_generic {
	
u8 type;
	
u8 length;
	
u16 handle;
} __attribute__ ((packed));

/* offsets to the smbios generic type based on the above structure layout */

enum smbios_generic_offsets {
	
SMBIOS_GENERIC_TYPE =	offsetof(struct smbios_generic, type),
	
SMBIOS_GENERIC_LENGTH =	offsetof(struct smbios_generic, length),
	
SMBIOS_GENERIC_HANDLE =	offsetof(struct smbios_generic, handle),
};


struct smbios_entry_point {
	
char anchor[4];
	
u8 ep_checksum;
	
u8 ep_length;
	
u8 major_version;
	
u8 minor_version;
	
u16 max_size_entry;
	
u8 ep_rev;
	
u8 reserved[5];
	
char int_anchor[5];
	
u8 int_checksum;
	
u16 st_length;
	
u32 st_address;
	
u16 number_of_entrys;
	
u8 bcd_rev;
} __attribute__ ((packed));

/* offsets to the smbios entry point based on the above structure layout */

enum smbios_entry_point_offsets {
	
ANCHOR =		offsetof(struct smbios_entry_point, anchor[0]),
	
EP_CHECKSUM =		offsetof(struct smbios_entry_point, ep_checksum),
	
EP_LENGTH =		offsetof(struct smbios_entry_point, ep_length),
	
MAJOR_VERSION =		offsetof(struct smbios_entry_point, major_version),
	
MINOR_VERSION =		offsetof(struct smbios_entry_point, minor_version),
	
MAX_SIZE_ENTRY =	offsetof(struct smbios_entry_point, max_size_entry),
	
EP_REV =		offsetof(struct smbios_entry_point, ep_rev),
	
INT_ANCHOR =		offsetof(struct smbios_entry_point, int_anchor[0]),
	
INT_CHECKSUM =		offsetof(struct smbios_entry_point, int_checksum),
	
ST_LENGTH =		offsetof(struct smbios_entry_point, st_length),
	
ST_ADDRESS =		offsetof(struct smbios_entry_point, st_address),
	
NUMBER_OF_ENTRYS =	offsetof(struct smbios_entry_point, number_of_entrys),
	
BCD_REV =		offsetof(struct smbios_entry_point, bcd_rev),
};


struct ctrl_reg {			/* offset */
	
u8	slot_RST;		/* 0x00 */
	
u8	slot_enable;		/* 0x01 */
	
u16	misc;			/* 0x02 */
	
u32	led_control;		/* 0x04 */
	
u32	int_input_clear;	/* 0x08 */
	
u32	int_mask;		/* 0x0a */
	
u8	reserved0;		/* 0x10 */
	
u8	reserved1;		/* 0x11 */
	
u8	reserved2;		/* 0x12 */
	
u8	gen_output_AB;		/* 0x13 */
	
u32	non_int_input;		/* 0x14 */
	
u32	reserved3;		/* 0x18 */
	
u32	reserved4;		/* 0x1a */
	
u32	reserved5;		/* 0x20 */
	
u8	reserved6;		/* 0x24 */
	
u8	reserved7;		/* 0x25 */
	
u16	reserved8;		/* 0x26 */
	
u8	slot_mask;		/* 0x28 */
	
u8	reserved9;		/* 0x29 */
	
u8	reserved10;		/* 0x2a */
	
u8	reserved11;		/* 0x2b */
	
u8	slot_SERR;		/* 0x2c */
	
u8	slot_power;		/* 0x2d */
	
u8	reserved12;		/* 0x2e */
	
u8	reserved13;		/* 0x2f */
	
u8	next_curr_freq;		/* 0x30 */
	
u8	reset_freq_mode;	/* 0x31 */
} __attribute__ ((packed));

/* offsets to the controller registers based on the above structure layout */

enum ctrl_offsets {
	
SLOT_RST =		offsetof(struct ctrl_reg, slot_RST),
	
SLOT_ENABLE =		offsetof(struct ctrl_reg, slot_enable),
	
MISC =			offsetof(struct ctrl_reg, misc),
	
LED_CONTROL =		offsetof(struct ctrl_reg, led_control),
	
INT_INPUT_CLEAR =	offsetof(struct ctrl_reg, int_input_clear),
	
INT_MASK =		offsetof(struct ctrl_reg, int_mask),
	
CTRL_RESERVED0 =	offsetof(struct ctrl_reg, reserved0),
	
CTRL_RESERVED1 =	offsetof(struct ctrl_reg, reserved1),
	
CTRL_RESERVED2 =	offsetof(struct ctrl_reg, reserved1),
	
GEN_OUTPUT_AB =		offsetof(struct ctrl_reg, gen_output_AB),
	
NON_INT_INPUT =		offsetof(struct ctrl_reg, non_int_input),
	
CTRL_RESERVED3 =	offsetof(struct ctrl_reg, reserved3),
	
CTRL_RESERVED4 =	offsetof(struct ctrl_reg, reserved4),
	
CTRL_RESERVED5 =	offsetof(struct ctrl_reg, reserved5),
	
CTRL_RESERVED6 =	offsetof(struct ctrl_reg, reserved6),
	
CTRL_RESERVED7 =	offsetof(struct ctrl_reg, reserved7),
	
CTRL_RESERVED8 =	offsetof(struct ctrl_reg, reserved8),
	
SLOT_MASK =		offsetof(struct ctrl_reg, slot_mask),
	
CTRL_RESERVED9 =	offsetof(struct ctrl_reg, reserved9),
	
CTRL_RESERVED10 =	offsetof(struct ctrl_reg, reserved10),
	
CTRL_RESERVED11 =	offsetof(struct ctrl_reg, reserved11),
	
SLOT_SERR =		offsetof(struct ctrl_reg, slot_SERR),
	
SLOT_POWER =		offsetof(struct ctrl_reg, slot_power),
	
NEXT_CURR_FREQ =	offsetof(struct ctrl_reg, next_curr_freq),
	
RESET_FREQ_MODE =	offsetof(struct ctrl_reg, reset_freq_mode),
};


struct hrt {
	
char sig0;
	
char sig1;
	
char sig2;
	
char sig3;
	
u16 unused_IRQ;
	
u16 PCIIRQ;
	
u8 number_of_entries;
	
u8 revision;
	
u16 reserved1;
	
u32 reserved2;
} __attribute__ ((packed));

/* offsets to the hotplug resource table registers based on the above
 * structure layout
 */

enum hrt_offsets {
	
SIG0 =			offsetof(struct hrt, sig0),
	
SIG1 =			offsetof(struct hrt, sig1),
	
SIG2 =			offsetof(struct hrt, sig2),
	
SIG3 =			offsetof(struct hrt, sig3),
	
UNUSED_IRQ =		offsetof(struct hrt, unused_IRQ),
	
PCIIRQ =		offsetof(struct hrt, PCIIRQ),
	
NUMBER_OF_ENTRIES =	offsetof(struct hrt, number_of_entries),
	
REVISION =		offsetof(struct hrt, revision),
	
HRT_RESERVED1 =		offsetof(struct hrt, reserved1),
	
HRT_RESERVED2 =		offsetof(struct hrt, reserved2),
};


struct slot_rt {
	
u8 dev_func;
	
u8 primary_bus;
	
u8 secondary_bus;
	
u8 max_bus;
	
u16 io_base;
	
u16 io_length;
	
u16 mem_base;
	
u16 mem_length;
	
u16 pre_mem_base;
	
u16 pre_mem_length;
} __attribute__ ((packed));

/* offsets to the hotplug slot resource table registers based on the above
 * structure layout
 */

enum slot_rt_offsets {
	
DEV_FUNC =		offsetof(struct slot_rt, dev_func),
	
PRIMARY_BUS =		offsetof(struct slot_rt, primary_bus),
	
SECONDARY_BUS =		offsetof(struct slot_rt, secondary_bus),
	
MAX_BUS =		offsetof(struct slot_rt, max_bus),
	
IO_BASE =		offsetof(struct slot_rt, io_base),
	
IO_LENGTH =		offsetof(struct slot_rt, io_length),
	
MEM_BASE =		offsetof(struct slot_rt, mem_base),
	
MEM_LENGTH =		offsetof(struct slot_rt, mem_length),
	
PRE_MEM_BASE =		offsetof(struct slot_rt, pre_mem_base),
	
PRE_MEM_LENGTH =	offsetof(struct slot_rt, pre_mem_length),
};


struct pci_func {
	
struct pci_func *next;
	
u8 bus;
	
u8 device;
	
u8 function;
	
u8 is_a_board;
	
u16 status;
	
u8 configured;
	
u8 switch_save;
	
u8 presence_save;
	
u32 base_length[0x06];
	
u8 base_type[0x06];
	
u16 reserved2;
	
u32 config_space[0x20];
	
struct pci_resource *mem_head;
	
struct pci_resource *p_mem_head;
	
struct pci_resource *io_head;
	
struct pci_resource *bus_head;
	
struct timer_list *p_task_event;
	
struct pci_dev *pci_dev;
};


struct slot {
	
struct slot *next;
	
u8 bus;
	
u8 device;
	
u8 number;
	
u8 is_a_board;
	
u8 configured;
	
u8 state;
	
u8 switch_save;
	
u8 presence_save;
	
u32 capabilities;
	
u16 reserved2;
	
struct timer_list task_event;
	
u8 hp_slot;
	
struct controller *ctrl;
	
void __iomem *p_sm_slot;
	
struct hotplug_slot *hotplug_slot;
};


struct pci_resource {
	
struct pci_resource *next;
	
u32 base;
	
u32 length;
};


struct event_info {
	
u32 event_type;
	
u8 hp_slot;
};


struct controller {
	
struct controller *next;
	
u32 ctrl_int_comp;
	
struct mutex crit_sect;	/* critical section mutex */
	
void __iomem *hpc_reg;	/* cookie for our pci controller location */
	
struct pci_resource *mem_head;
	
struct pci_resource *p_mem_head;
	
struct pci_resource *io_head;
	
struct pci_resource *bus_head;
	
struct pci_dev *pci_dev;
	
struct pci_bus *pci_bus;
	
struct event_info event_queue[10];
	
struct slot *slot;
	
u8 next_event;
	
u8 interrupt;
	
u8 cfgspc_irq;
	
u8 bus;			/* bus number for the pci hotplug controller */
	
u8 rev;
	
u8 slot_device_offset;
	
u8 first_slot;
	
u8 add_support;
	
u8 push_flag;
	
u8 push_button;			/* 0 = no pushbutton, 1 = pushbutton present */
	
u8 slot_switch_type;		/* 0 = no switch, 1 = switch present */
	
u8 defeature_PHP;		/* 0 = PHP not supported, 1 = PHP supported */
	
u8 alternate_base_address;	/* 0 = not supported, 1 = supported */
	
u8 pci_config_space;		/* Index/data access to working registers 0 = not supported, 1 = supported */
	
u8 pcix_speed_capability;	/* PCI-X */
	
u8 pcix_support;		/* PCI-X */
	
u16 vendor_id;
	
struct work_struct int_task_event;
	
wait_queue_head_t queue;	/* sleep & wake process */
	
struct dentry *dentry;		/* debugfs dentry */
};


struct irq_mapping {
	
u8 barber_pole;
	
u8 valid_INT;
	
u8 interrupt[4];
};


struct resource_lists {
	
struct pci_resource *mem_head;
	
struct pci_resource *p_mem_head;
	
struct pci_resource *io_head;
	
struct pci_resource *bus_head;
	
struct irq_mapping *irqs;
};


#define ROM_PHY_ADDR			0x0F0000

#define ROM_PHY_LEN			0x00ffff


#define PCI_HPC_ID			0xA0F7

#define PCI_SUB_HPC_ID			0xA2F7

#define PCI_SUB_HPC_ID2			0xA2F8

#define PCI_SUB_HPC_ID3			0xA2F9

#define PCI_SUB_HPC_ID_INTC		0xA2FA

#define PCI_SUB_HPC_ID4			0xA2FD


#define INT_BUTTON_IGNORE		0

#define INT_PRESENCE_ON			1

#define INT_PRESENCE_OFF		2

#define INT_SWITCH_CLOSE		3

#define INT_SWITCH_OPEN			4

#define INT_POWER_FAULT			5

#define INT_POWER_FAULT_CLEAR		6

#define INT_BUTTON_PRESS		7

#define INT_BUTTON_RELEASE		8

#define INT_BUTTON_CANCEL		9


#define STATIC_STATE			0

#define BLINKINGON_STATE		1

#define BLINKINGOFF_STATE		2

#define POWERON_STATE			3

#define POWEROFF_STATE			4


#define PCISLOT_INTERLOCK_CLOSED	0x00000001

#define PCISLOT_ADAPTER_PRESENT		0x00000002

#define PCISLOT_POWERED			0x00000004

#define PCISLOT_66_MHZ_OPERATION	0x00000008

#define PCISLOT_64_BIT_OPERATION	0x00000010

#define PCISLOT_REPLACE_SUPPORTED	0x00000020

#define PCISLOT_ADD_SUPPORTED		0x00000040

#define PCISLOT_INTERLOCK_SUPPORTED	0x00000080

#define PCISLOT_66_MHZ_SUPPORTED	0x00000100

#define PCISLOT_64_BIT_SUPPORTED	0x00000200


#define PCI_TO_PCI_BRIDGE_CLASS		0x00060400


#define INTERLOCK_OPEN			0x00000002

#define ADD_NOT_SUPPORTED		0x00000003

#define CARD_FUNCTIONING		0x00000005

#define ADAPTER_NOT_SAME		0x00000006

#define NO_ADAPTER_PRESENT		0x00000009

#define NOT_ENOUGH_RESOURCES		0x0000000B

#define DEVICE_TYPE_NOT_SUPPORTED	0x0000000C

#define POWER_FAILURE			0x0000000E


#define REMOVE_NOT_SUPPORTED		0x00000003


/*
 * error Messages
 */

#define msg_initialization_err	"Initialization failure, error=%d\n"

#define msg_HPC_rev_error	"Unsupported revision of the PCI hot plug controller found.\n"

#define msg_HPC_non_compaq_or_intel	"The PCI hot plug controller is not supported by this driver.\n"

#define msg_HPC_not_supported	"this system is not supported by this version of cpqphpd. Upgrade to a newer version of cpqphpd\n"

#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"

#define msg_button_on		"PCI slot #%d - powering on due to button press.\n"

#define msg_button_off		"PCI slot #%d - powering off due to button press.\n"

#define msg_button_cancel	"PCI slot #%d - action canceled due to button press.\n"

#define msg_button_ignore	"PCI slot #%d - button press ignored.  (action in progress...)\n"


/* debugfs functions for the hotplug controller info */
void cpqhp_initialize_debugfs(void);
void cpqhp_shutdown_debugfs(void);
void cpqhp_create_debugfs_files(struct controller *ctrl);
void cpqhp_remove_debugfs_files(struct controller *ctrl);

/* controller functions */
void cpqhp_pushbutton_thread(unsigned long event_pointer);
irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data);
int cpqhp_find_available_resources(struct controller *ctrl,
				   void __iomem *rom_start);
int cpqhp_event_start_thread(void);
void cpqhp_event_stop_thread(void);
struct pci_func *cpqhp_slot_create(unsigned char busnumber);
struct pci_func *cpqhp_slot_find(unsigned char bus, unsigned char device,
				 unsigned char index);
int cpqhp_process_SI(struct controller *ctrl, struct pci_func *func);
int cpqhp_process_SS(struct controller *ctrl, struct pci_func *func);
int cpqhp_hardware_test(struct controller *ctrl, int test_num);

/* resource functions */
int	cpqhp_resource_sort_and_combine(struct pci_resource **head);

/* pci functions */
int cpqhp_set_irq(u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num);
int cpqhp_get_bus_dev(struct controller *ctrl, u8 *bus_num, u8 *dev_num,
		      u8 slot);
int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug);
int cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func *func);
int cpqhp_save_used_resources(struct controller *ctrl, struct pci_func *func);
int cpqhp_configure_board(struct controller *ctrl, struct pci_func *func);
int cpqhp_save_slot_config(struct controller *ctrl, struct pci_func *new_slot);
int cpqhp_valid_replace(struct controller *ctrl, struct pci_func *func);
void cpqhp_destroy_board_resources(struct pci_func *func);
int cpqhp_return_board_resources(struct pci_func *func,
				 struct resource_lists *resources);
void cpqhp_destroy_resource_list(struct resource_lists *resources);
int cpqhp_configure_device(struct controller *ctrl, struct pci_func *func);
int cpqhp_unconfigure_device(struct pci_func *func);

/* Global variables */
extern int cpqhp_debug;
extern int cpqhp_legacy_mode;
extern struct controller *cpqhp_ctrl_list;
extern struct pci_func *cpqhp_slot_list[256];
extern struct irq_routing_table *cpqhp_routing_table;

/* these can be gotten rid of, but for debugging they are purty */
extern u8 cpqhp_nic_irq;
extern u8 cpqhp_disk_irq;


/* inline functions */



static inline const char *slot_name(struct slot *slot)
{
	return hotplug_slot_name(slot->hotplug_slot);
}

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/*
 * return_resource
 *
 * Puts node back in the resource list pointed to by head
 */


static inline void return_resource(struct pci_resource **head,
				   struct pci_resource *node)
{
	if (!node || !head)
		return;
	node->next = *head;
	*head = node;
}

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static inline void set_SOGO(struct controller *ctrl)
{
	u16 misc;

	misc = readw(ctrl->hpc_reg + MISC);
	misc = (misc | 0x0001) & 0xFFFB;
	writew(misc, ctrl->hpc_reg + MISC);
}


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static inline void amber_LED_on(struct controller *ctrl, u8 slot)
{
	u32 led_control;

	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control |= (0x01010000L << slot);
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}


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static inline void amber_LED_off(struct controller *ctrl, u8 slot)
{
	u32 led_control;

	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control &= ~(0x01010000L << slot);
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}


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static inline int read_amber_LED(struct controller *ctrl, u8 slot)
{
	u32 led_control;

	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control &= (0x01010000L << slot);

	return led_control ? 1 : 0;
}


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static inline void green_LED_on(struct controller *ctrl, u8 slot)
{
	u32 led_control;

	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control |= 0x0101L << slot;
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}

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static inline void green_LED_off(struct controller *ctrl, u8 slot)
{
	u32 led_control;

	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control &= ~(0x0101L << slot);
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}


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static inline void green_LED_blink(struct controller *ctrl, u8 slot)
{
	u32 led_control;

	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control &= ~(0x0101L << slot);
	led_control |= (0x0001L << slot);
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}


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static inline void slot_disable(struct controller *ctrl, u8 slot)
{
	u8 slot_enable;

	slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
	slot_enable &= ~(0x01 << slot);
	writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE);
}


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static inline void slot_enable(struct controller *ctrl, u8 slot)
{
	u8 slot_enable;

	slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
	slot_enable |= (0x01 << slot);
	writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE);
}


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static inline u8 is_slot_enabled(struct controller *ctrl, u8 slot)
{
	u8 slot_enable;

	slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
	slot_enable &= (0x01 << slot);
	return slot_enable ? 1 : 0;
}


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static inline u8 read_slot_enable(struct controller *ctrl)
{
	return readb(ctrl->hpc_reg + SLOT_ENABLE);
}


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/**
 * get_controller_speed - find the current frequency/mode of controller.
 *
 * @ctrl: controller to get frequency/mode for.
 *
 * Returns controller speed.
 */


static inline u8 get_controller_speed(struct controller *ctrl)
{
	u8 curr_freq;
	u16 misc;

	if (ctrl->pcix_support) {
		curr_freq = readb(ctrl->hpc_reg + NEXT_CURR_FREQ);
		if ((curr_freq & 0xB0) == 0xB0)
			return PCI_SPEED_133MHz_PCIX;
		if ((curr_freq & 0xA0) == 0xA0)
			return PCI_SPEED_100MHz_PCIX;
		if ((curr_freq & 0x90) == 0x90)
			return PCI_SPEED_66MHz_PCIX;
		if (curr_freq & 0x10)
			return PCI_SPEED_66MHz;

		return PCI_SPEED_33MHz;
	}

	misc = readw(ctrl->hpc_reg + MISC);
	return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz;
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Torben Mathiasen
73
66.36%
1
33.33%
Linus Torvalds
35
31.82%
1
33.33%
Greg Kroah-Hartman
2
1.82%
1
33.33%
Total
110
100.00%
3
100.00%

/**
 * get_adapter_speed - find the max supported frequency/mode of adapter.
 *
 * @ctrl: hotplug controller.
 * @hp_slot: hotplug slot where adapter is installed.
 *
 * Returns adapter speed.
 */


static inline u8 get_adapter_speed(struct controller *ctrl, u8 hp_slot)
{
	u32 temp_dword = readl(ctrl->hpc_reg + NON_INT_INPUT);
	dbg("slot: %d, PCIXCAP: %8x\n", hp_slot, temp_dword);
	if (ctrl->pcix_support) {
		if (temp_dword & (0x10000 << hp_slot))
			return PCI_SPEED_133MHz_PCIX;
		if (temp_dword & (0x100 << hp_slot))
			return PCI_SPEED_66MHz_PCIX;
	}

	if (temp_dword & (0x01 << hp_slot))
		return PCI_SPEED_66MHz;

	return PCI_SPEED_33MHz;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Torben Mathiasen
86
100.00%
1
100.00%
Total
86
100.00%
1
100.00%



static inline void enable_slot_power(struct controller *ctrl, u8 slot)
{
	u8 slot_power;

	slot_power = readb(ctrl->hpc_reg + SLOT_POWER);
	slot_power |= (0x01 << slot);
	writeb(slot_power, ctrl->hpc_reg + SLOT_POWER);
}

Contributors
Person
Tokens
Prop
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CommitProp
Linus Torvalds
48
100.00%
1
100.00%
Total
48
100.00%
1
100.00%



static inline void disable_slot_power(struct controller *ctrl, u8 slot)
{
	u8 slot_power;

	slot_power = readb(ctrl->hpc_reg + SLOT_POWER);
	slot_power &= ~(0x01 << slot);
	writeb(slot_power, ctrl->hpc_reg + SLOT_POWER);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
49
100.00%
1
100.00%
Total
49
100.00%
1
100.00%



static inline int cpq_get_attention_status(struct controller *ctrl, struct slot *slot)
{
	u8 hp_slot;

	hp_slot = slot->device - ctrl->slot_device_offset;

	return read_amber_LED(ctrl, hp_slot);
}


Contributors
Person
Tokens
Prop
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CommitProp
Linus Torvalds
38
100.00%
1
100.00%
Total
38
100.00%
1
100.00%



static inline int get_slot_enabled(struct controller *ctrl, struct slot *slot)
{
	u8 hp_slot;

	hp_slot = slot->device - ctrl->slot_device_offset;

	return is_slot_enabled(ctrl, hp_slot);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
38
100.00%
1
100.00%
Total
38
100.00%
1
100.00%



static inline int cpq_get_latch_status(struct controller *ctrl,
				       struct slot *slot)
{
	u32 status;
	u8 hp_slot;

	hp_slot = slot->device - ctrl->slot_device_offset;
	dbg("%s: slot->device = %d, ctrl->slot_device_offset = %d\n",
	    __func__, slot->device, ctrl->slot_device_offset);

	status = (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot));

	return (status == 0) ? 1 : 0;
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
75
96.15%
1
25.00%
Greg Kroah-Hartman
1
1.28%
1
25.00%
Harvey Harrison
1
1.28%
1
25.00%
Bogicevic Sasa
1
1.28%
1
25.00%
Total
78
100.00%
4
100.00%



static inline int get_presence_status(struct controller *ctrl,
				      struct slot *slot)
{
	int presence_save = 0;
	u8 hp_slot;
	u32 tempdword;

	hp_slot = slot->device - ctrl->slot_device_offset;

	tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR);
	presence_save = (int) ((((~tempdword) >> 23) | ((~tempdword) >> 15))
				>> hp_slot) & 0x02;

	return presence_save;
}

Contributors
Person
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CommitProp
Linus Torvalds
83
100.00%
1
100.00%
Total
83
100.00%
1
100.00%



static inline int wait_for_ctrl_irq(struct controller *ctrl)
{
	DECLARE_WAITQUEUE(wait, current);
	int retval = 0;

	dbg("%s - start\n", __func__);
	add_wait_queue(&ctrl->queue, &wait);
	/* Sleep for up to 1 second to wait for the LED to change. */
	msleep_interruptible(1000);
	remove_wait_queue(&ctrl->queue, &wait);
	if (signal_pending(current))
		retval =  -EINTR;

	dbg("%s - end\n", __func__);
	return retval;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
73
90.12%
1
25.00%
Greg Kroah-Hartman
4
4.94%
1
25.00%
Harvey Harrison
2
2.47%
1
25.00%
Nishanth Aravamudan
2
2.47%
1
25.00%
Total
81
100.00%
4
100.00%

#include <asm/pci_x86.h>


static inline int cpqhp_routing_table_length(void)
{
	BUG_ON(cpqhp_routing_table == NULL);
	return ((cpqhp_routing_table->size - sizeof(struct irq_routing_table)) /
		sizeof(struct irq_info));
}

Contributors
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Alexander Chiang
37
100.00%
1
100.00%
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37
100.00%
1
100.00%

#endif
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
2953
89.08%
1
4.55%
Torben Mathiasen
219
6.61%
2
9.09%
Alexander Chiang
73
2.20%
4
18.18%
Greg Kroah-Hartman
43
1.30%
6
27.27%
Ingo Molnar
10
0.30%
4
18.18%
Andrew Morton
6
0.18%
1
4.55%
Bogicevic Sasa
5
0.15%
1
4.55%
Harvey Harrison
3
0.09%
1
4.55%
Nishanth Aravamudan
2
0.06%
1
4.55%
Rolf Eike Beer
1
0.03%
1
4.55%
Total
3315
100.00%
22
100.00%
Directory: drivers/pci/hotplug

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