| /* |
| * 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> |
| |
| #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; |
| 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; |
| 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 */ |
| extern void cpqhp_initialize_debugfs (void); |
| extern void cpqhp_shutdown_debugfs (void); |
| extern void cpqhp_create_debugfs_files (struct controller *ctrl); |
| extern void cpqhp_remove_debugfs_files (struct controller *ctrl); |
| |
| /* controller functions */ |
| extern void cpqhp_pushbutton_thread (unsigned long event_pointer); |
| extern irqreturn_t cpqhp_ctrl_intr (int IRQ, void *data); |
| extern int cpqhp_find_available_resources (struct controller *ctrl, void __iomem *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 int cpqhp_legacy_mode; |
| 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 */ |
| |
| /* |
| * 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; |
| } |
| |
| #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("%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; |
| } |
| |
| #endif |
| |