cpqphp.h
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上传日期:2013-04-10
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文件大小:21k
- /*
- * 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 "pci_hotplug.h"
- #include <asm/io.h> /* for read? and write? functions */
- #if !defined(CONFIG_HOTPLUG_PCI_COMPAQ_MODULE)
- #define MY_NAME "cpqphp.o"
- #else
- #define MY_NAME THIS_MODULE->name
- #endif
- #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 */
- } __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),
- };
- 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;
- };
- #define SLOT_MAGIC 0x67267321
- struct slot {
- u32 magic;
- 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 *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 semaphore crit_sect; /* critical section semaphore */
- void *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_ops *pci_ops;
- struct proc_dir_entry* proc_entry;
- struct proc_dir_entry* proc_entry2;
- struct event_info event_queue[10];
- struct slot *slot;
- u8 next_event;
- u8 interrupt;
- u8 bus;
- u8 device;
- u8 function;
- u8 rev;
- u8 slot_device_offset;
- u8 first_slot;
- u8 add_support;
- u8 push_flag;
- enum pci_bus_speed speed;
- enum pci_bus_speed speed_capability;
- 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;
- char proc_name[20];
- char proc_name2[20];
- struct tq_struct int_task_event;
- wait_queue_head_t queue; /* sleep & wake process */
- };
- 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 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=%dn"
- #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 cpqphpdn"
- #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"
- /* Proc functions for the hotplug controller info */
- #ifdef CONFIG_PROC_FS
- extern int cpqhp_proc_init_ctrl (void);
- extern int cpqhp_proc_destroy_ctrl (void);
- extern int cpqhp_proc_create_ctrl (struct controller *ctrl);
- extern int cpqhp_proc_remove_ctrl (struct controller *ctrl);
- #else
- static inline int cpqhp_proc_init_ctrl (void)
- {
- return 0;
- }
- static inline int cpqhp_proc_destroy_ctrl (void)
- {
- return 0;
- }
- static inline int cpqhp_proc_create_ctrl (struct controller *ctrl)
- {
- return 0;
- }
- static inline int cpqhp_proc_remove_ctrl (struct controller *ctrl)
- {
- return 0;
- }
- #endif
- /* controller functions */
- extern void cpqhp_pushbutton_thread (unsigned long event_pointer);
- extern void cpqhp_ctrl_intr (int IRQ, struct controller *ctrl_input, struct pt_regs *regs);
- extern int cpqhp_find_available_resources (struct controller *ctrl, void *rom_start);
- extern int cpqhp_event_start_thread (void);
- extern void cpqhp_event_stop_thread (void);
- extern struct pci_func *cpqhp_slot_create (unsigned char busnumber);
- extern struct pci_func *cpqhp_slot_find (unsigned char bus, unsigned char device, unsigned char index);
- extern int cpqhp_process_SI (struct controller *ctrl, struct pci_func *func);
- extern int cpqhp_process_SS (struct controller *ctrl, struct pci_func *func);
- extern int cpqhp_hardware_test (struct controller *ctrl, int test_num);
- /* resource functions */
- extern int cpqhp_resource_sort_and_combine (struct pci_resource **head);
- /* pci functions */
- extern int cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num);
- extern int cpqhp_get_bus_dev (struct controller *ctrl, u8 *bus_num, u8 *dev_num, u8 slot);
- extern int cpqhp_save_config (struct controller *ctrl, int busnumber, int is_hot_plug);
- extern int cpqhp_save_base_addr_length (struct controller *ctrl, struct pci_func * func);
- extern int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func);
- extern int cpqhp_configure_board (struct controller *ctrl, struct pci_func * func);
- extern int cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot);
- extern int cpqhp_valid_replace (struct controller *ctrl, struct pci_func * func);
- extern void cpqhp_destroy_board_resources (struct pci_func * func);
- extern int cpqhp_return_board_resources (struct pci_func * func, struct resource_lists * resources);
- extern void cpqhp_destroy_resource_list (struct resource_lists * resources);
- extern int cpqhp_configure_device (struct controller* ctrl, struct pci_func* func);
- extern int cpqhp_unconfigure_device (struct pci_func* func);
- /* Global variables */
- extern int cpqhp_debug;
- extern struct controller *cpqhp_ctrl_list;
- extern struct pci_func *cpqhp_slot_list[256];
- /* these can be gotten rid of, but for debugging they are purty */
- extern u8 cpqhp_nic_irq;
- extern u8 cpqhp_disk_irq;
- /* inline functions */
- /* Inline functions to check the sanity of a pointer that is passed to us */
- static inline int slot_paranoia_check (struct slot *slot, const char *function)
- {
- if (!slot) {
- dbg("%s - slot == NULL", function);
- return -1;
- }
- if (slot->magic != SLOT_MAGIC) {
- dbg("%s - bad magic number for slot", function);
- return -1;
- }
- if (!slot->hotplug_slot) {
- dbg("%s - slot->hotplug_slot == NULL!", function);
- return -1;
- }
- return 0;
- }
- static inline struct slot *get_slot (struct hotplug_slot *hotplug_slot, const char *function)
- {
- struct slot *slot;
- if (!hotplug_slot) {
- dbg("%s - hotplug_slot == NULLn", function);
- return NULL;
- }
- slot = (struct slot *)hotplug_slot->private;
- if (slot_paranoia_check (slot, function))
- return NULL;
- return slot;
- }
- /*
- * 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;
- }
- 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);
- }
- 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);
- }
- 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);
- }
- 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;
- }
- 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);
- }
- 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);
- }
- static inline void green_LED_blink (struct controller *ctrl, u8 slot)
- {
- u32 led_control;
-
- led_control = readl(ctrl->hpc_reg + LED_CONTROL);
- led_control |= (0x0001L << slot);
- writel(led_control, ctrl->hpc_reg + LED_CONTROL);
- }
- 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);
- }
- 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);
- }
- 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;
- }
- static inline u8 read_slot_enable (struct controller *ctrl)
- {
- return readb(ctrl->hpc_reg + SLOT_ENABLE);
- }
- static inline u8 get_controller_speed (struct controller *ctrl)
- {
- u16 misc;
-
- misc = readw(ctrl->hpc_reg + MISC);
- return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz;
- }
- 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);
- }
- 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);
- }
- static inline int cpq_get_attention_status (struct controller *ctrl, struct slot *slot)
- {
- u8 hp_slot;
- if (slot == NULL)
- return 1;
- hp_slot = slot->device - ctrl->slot_device_offset;
- return read_amber_LED (ctrl, hp_slot);
- }
- static inline int get_slot_enabled (struct controller *ctrl, struct slot *slot)
- {
- u8 hp_slot;
- if (slot == NULL)
- return 1;
- hp_slot = slot->device - ctrl->slot_device_offset;
- return is_slot_enabled (ctrl, hp_slot);
- }
- static inline int cpq_get_latch_status (struct controller *ctrl, struct slot *slot)
- {
- u32 status;
- u8 hp_slot;
- if (slot == NULL)
- return 1;
- hp_slot = slot->device - ctrl->slot_device_offset;
- dbg(__FUNCTION__": slot->device = %d, ctrl->slot_device_offset = %d n", slot->device, ctrl->slot_device_offset);
- status = (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot));
- return(status == 0) ? 1 : 0;
- }
- static inline int get_presence_status (struct controller *ctrl, struct slot *slot)
- {
- int presence_save = 0;
- u8 hp_slot;
- u32 tempdword;
- if (slot == NULL)
- return 0;
- 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;
- }
- #define SLOT_NAME_SIZE 10
- static inline void make_slot_name (char *buffer, int buffer_size, struct slot *slot)
- {
- snprintf (buffer, buffer_size, "%d", slot->number);
- }
- static inline int wait_for_ctrl_irq (struct controller *ctrl)
- {
- DECLARE_WAITQUEUE(wait, current);
- int retval = 0;
- dbg(__FUNCTION__" - startn");
- add_wait_queue(&ctrl->queue, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
- /* Sleep for up to 1 second to wait for the LED to change. */
- schedule_timeout(1*HZ);
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&ctrl->queue, &wait);
- if (signal_pending(current))
- retval = -EINTR;
- dbg(__FUNCTION__" - endn");
- return retval;
- }
- #endif