diff options
Diffstat (limited to 'drivers/pci/hotplug/cpqphp.h')
| -rw-r--r-- | drivers/pci/hotplug/cpqphp.h | 729 |
1 files changed, 729 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h new file mode 100644 index 000000000..2f7b49ea9 --- /dev/null +++ b/drivers/pci/hotplug/cpqphp.h @@ -0,0 +1,729 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * 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. + * + * Send feedback to <greg@kroah.com> + * + */ +#ifndef _CPQPHP_H +#define _CPQPHP_H + +#include <linux/interrupt.h> +#include <linux/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(struct timer_list *t); +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); +} + +static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot) +{ + return container_of(hotplug_slot, struct slot, hotplug_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 &= ~(0x0101L << slot); + 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); +} + + +/** + * 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; +} + + +/** + * 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; +} + +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; + + 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; + + 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; + + 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; +} + + +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; +} + +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; +} + +#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)); +} + +#endif |