1736759efSBjorn Helgaas /* SPDX-License-Identifier: GPL-2.0+ */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * Compaq Hot Plug Controller Driver 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Copyright (C) 1995,2001 Compaq Computer Corporation 61da177e4SLinus Torvalds * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) 71da177e4SLinus Torvalds * Copyright (C) 2001 IBM 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * All rights reserved. 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * Send feedback to <greg@kroah.com> 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds */ 141da177e4SLinus Torvalds #ifndef _CPQPHP_H 151da177e4SLinus Torvalds #define _CPQPHP_H 161da177e4SLinus Torvalds 171da177e4SLinus Torvalds #include <linux/interrupt.h> 181da177e4SLinus Torvalds #include <asm/io.h> /* for read? and write? functions */ 191da177e4SLinus Torvalds #include <linux/delay.h> /* for delays */ 206aa4cdd0SIngo Molnar #include <linux/mutex.h> 21174cd4b1SIngo Molnar #include <linux/sched/signal.h> /* for signal_pending() */ 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds #define MY_NAME "cpqphp" 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define dbg(fmt, arg...) do { if (cpqhp_debug) printk(KERN_DEBUG "%s: " fmt, MY_NAME, ## arg); } while (0) 261da177e4SLinus Torvalds #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME, ## arg) 271da177e4SLinus Torvalds #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME, ## arg) 281da177e4SLinus Torvalds #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME, ## arg) 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds 311da177e4SLinus Torvalds 321da177e4SLinus Torvalds struct smbios_system_slot { 331da177e4SLinus Torvalds u8 type; 341da177e4SLinus Torvalds u8 length; 351da177e4SLinus Torvalds u16 handle; 361da177e4SLinus Torvalds u8 name_string_num; 371da177e4SLinus Torvalds u8 slot_type; 381da177e4SLinus Torvalds u8 slot_width; 391da177e4SLinus Torvalds u8 slot_current_usage; 401da177e4SLinus Torvalds u8 slot_length; 411da177e4SLinus Torvalds u16 slot_number; 421da177e4SLinus Torvalds u8 properties1; 431da177e4SLinus Torvalds u8 properties2; 441da177e4SLinus Torvalds } __attribute__ ((packed)); 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds /* offsets to the smbios generic type based on the above structure layout */ 471da177e4SLinus Torvalds enum smbios_system_slot_offsets { 481da177e4SLinus Torvalds SMBIOS_SLOT_GENERIC_TYPE = offsetof(struct smbios_system_slot, type), 491da177e4SLinus Torvalds SMBIOS_SLOT_GENERIC_LENGTH = offsetof(struct smbios_system_slot, length), 501da177e4SLinus Torvalds SMBIOS_SLOT_GENERIC_HANDLE = offsetof(struct smbios_system_slot, handle), 511da177e4SLinus Torvalds SMBIOS_SLOT_NAME_STRING_NUM = offsetof(struct smbios_system_slot, name_string_num), 521da177e4SLinus Torvalds SMBIOS_SLOT_TYPE = offsetof(struct smbios_system_slot, slot_type), 531da177e4SLinus Torvalds SMBIOS_SLOT_WIDTH = offsetof(struct smbios_system_slot, slot_width), 541da177e4SLinus Torvalds SMBIOS_SLOT_CURRENT_USAGE = offsetof(struct smbios_system_slot, slot_current_usage), 551da177e4SLinus Torvalds SMBIOS_SLOT_LENGTH = offsetof(struct smbios_system_slot, slot_length), 561da177e4SLinus Torvalds SMBIOS_SLOT_NUMBER = offsetof(struct smbios_system_slot, slot_number), 571da177e4SLinus Torvalds SMBIOS_SLOT_PROPERTIES1 = offsetof(struct smbios_system_slot, properties1), 581da177e4SLinus Torvalds SMBIOS_SLOT_PROPERTIES2 = offsetof(struct smbios_system_slot, properties2), 591da177e4SLinus Torvalds }; 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds struct smbios_generic { 621da177e4SLinus Torvalds u8 type; 631da177e4SLinus Torvalds u8 length; 641da177e4SLinus Torvalds u16 handle; 651da177e4SLinus Torvalds } __attribute__ ((packed)); 661da177e4SLinus Torvalds 671da177e4SLinus Torvalds /* offsets to the smbios generic type based on the above structure layout */ 681da177e4SLinus Torvalds enum smbios_generic_offsets { 691da177e4SLinus Torvalds SMBIOS_GENERIC_TYPE = offsetof(struct smbios_generic, type), 701da177e4SLinus Torvalds SMBIOS_GENERIC_LENGTH = offsetof(struct smbios_generic, length), 711da177e4SLinus Torvalds SMBIOS_GENERIC_HANDLE = offsetof(struct smbios_generic, handle), 721da177e4SLinus Torvalds }; 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds struct smbios_entry_point { 751da177e4SLinus Torvalds char anchor[4]; 761da177e4SLinus Torvalds u8 ep_checksum; 771da177e4SLinus Torvalds u8 ep_length; 781da177e4SLinus Torvalds u8 major_version; 791da177e4SLinus Torvalds u8 minor_version; 801da177e4SLinus Torvalds u16 max_size_entry; 811da177e4SLinus Torvalds u8 ep_rev; 821da177e4SLinus Torvalds u8 reserved[5]; 831da177e4SLinus Torvalds char int_anchor[5]; 841da177e4SLinus Torvalds u8 int_checksum; 851da177e4SLinus Torvalds u16 st_length; 861da177e4SLinus Torvalds u32 st_address; 871da177e4SLinus Torvalds u16 number_of_entrys; 881da177e4SLinus Torvalds u8 bcd_rev; 891da177e4SLinus Torvalds } __attribute__ ((packed)); 901da177e4SLinus Torvalds 911da177e4SLinus Torvalds /* offsets to the smbios entry point based on the above structure layout */ 921da177e4SLinus Torvalds enum smbios_entry_point_offsets { 931da177e4SLinus Torvalds ANCHOR = offsetof(struct smbios_entry_point, anchor[0]), 941da177e4SLinus Torvalds EP_CHECKSUM = offsetof(struct smbios_entry_point, ep_checksum), 951da177e4SLinus Torvalds EP_LENGTH = offsetof(struct smbios_entry_point, ep_length), 961da177e4SLinus Torvalds MAJOR_VERSION = offsetof(struct smbios_entry_point, major_version), 971da177e4SLinus Torvalds MINOR_VERSION = offsetof(struct smbios_entry_point, minor_version), 981da177e4SLinus Torvalds MAX_SIZE_ENTRY = offsetof(struct smbios_entry_point, max_size_entry), 991da177e4SLinus Torvalds EP_REV = offsetof(struct smbios_entry_point, ep_rev), 1001da177e4SLinus Torvalds INT_ANCHOR = offsetof(struct smbios_entry_point, int_anchor[0]), 1011da177e4SLinus Torvalds INT_CHECKSUM = offsetof(struct smbios_entry_point, int_checksum), 1021da177e4SLinus Torvalds ST_LENGTH = offsetof(struct smbios_entry_point, st_length), 1031da177e4SLinus Torvalds ST_ADDRESS = offsetof(struct smbios_entry_point, st_address), 1041da177e4SLinus Torvalds NUMBER_OF_ENTRYS = offsetof(struct smbios_entry_point, number_of_entrys), 1051da177e4SLinus Torvalds BCD_REV = offsetof(struct smbios_entry_point, bcd_rev), 1061da177e4SLinus Torvalds }; 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds struct ctrl_reg { /* offset */ 1091da177e4SLinus Torvalds u8 slot_RST; /* 0x00 */ 1101da177e4SLinus Torvalds u8 slot_enable; /* 0x01 */ 1111da177e4SLinus Torvalds u16 misc; /* 0x02 */ 1121da177e4SLinus Torvalds u32 led_control; /* 0x04 */ 1131da177e4SLinus Torvalds u32 int_input_clear; /* 0x08 */ 1141da177e4SLinus Torvalds u32 int_mask; /* 0x0a */ 1151da177e4SLinus Torvalds u8 reserved0; /* 0x10 */ 1161da177e4SLinus Torvalds u8 reserved1; /* 0x11 */ 1171da177e4SLinus Torvalds u8 reserved2; /* 0x12 */ 1181da177e4SLinus Torvalds u8 gen_output_AB; /* 0x13 */ 1191da177e4SLinus Torvalds u32 non_int_input; /* 0x14 */ 1201da177e4SLinus Torvalds u32 reserved3; /* 0x18 */ 1211da177e4SLinus Torvalds u32 reserved4; /* 0x1a */ 1221da177e4SLinus Torvalds u32 reserved5; /* 0x20 */ 1231da177e4SLinus Torvalds u8 reserved6; /* 0x24 */ 1241da177e4SLinus Torvalds u8 reserved7; /* 0x25 */ 1251da177e4SLinus Torvalds u16 reserved8; /* 0x26 */ 1261da177e4SLinus Torvalds u8 slot_mask; /* 0x28 */ 1271da177e4SLinus Torvalds u8 reserved9; /* 0x29 */ 1281da177e4SLinus Torvalds u8 reserved10; /* 0x2a */ 1291da177e4SLinus Torvalds u8 reserved11; /* 0x2b */ 1301da177e4SLinus Torvalds u8 slot_SERR; /* 0x2c */ 1311da177e4SLinus Torvalds u8 slot_power; /* 0x2d */ 1321da177e4SLinus Torvalds u8 reserved12; /* 0x2e */ 1331da177e4SLinus Torvalds u8 reserved13; /* 0x2f */ 1341da177e4SLinus Torvalds u8 next_curr_freq; /* 0x30 */ 1351da177e4SLinus Torvalds u8 reset_freq_mode; /* 0x31 */ 1361da177e4SLinus Torvalds } __attribute__ ((packed)); 1371da177e4SLinus Torvalds 1381da177e4SLinus Torvalds /* offsets to the controller registers based on the above structure layout */ 1391da177e4SLinus Torvalds enum ctrl_offsets { 1401da177e4SLinus Torvalds SLOT_RST = offsetof(struct ctrl_reg, slot_RST), 1411da177e4SLinus Torvalds SLOT_ENABLE = offsetof(struct ctrl_reg, slot_enable), 1421da177e4SLinus Torvalds MISC = offsetof(struct ctrl_reg, misc), 1431da177e4SLinus Torvalds LED_CONTROL = offsetof(struct ctrl_reg, led_control), 1441da177e4SLinus Torvalds INT_INPUT_CLEAR = offsetof(struct ctrl_reg, int_input_clear), 1451da177e4SLinus Torvalds INT_MASK = offsetof(struct ctrl_reg, int_mask), 1461da177e4SLinus Torvalds CTRL_RESERVED0 = offsetof(struct ctrl_reg, reserved0), 1471da177e4SLinus Torvalds CTRL_RESERVED1 = offsetof(struct ctrl_reg, reserved1), 1481da177e4SLinus Torvalds CTRL_RESERVED2 = offsetof(struct ctrl_reg, reserved1), 1491da177e4SLinus Torvalds GEN_OUTPUT_AB = offsetof(struct ctrl_reg, gen_output_AB), 1501da177e4SLinus Torvalds NON_INT_INPUT = offsetof(struct ctrl_reg, non_int_input), 1511da177e4SLinus Torvalds CTRL_RESERVED3 = offsetof(struct ctrl_reg, reserved3), 1521da177e4SLinus Torvalds CTRL_RESERVED4 = offsetof(struct ctrl_reg, reserved4), 1531da177e4SLinus Torvalds CTRL_RESERVED5 = offsetof(struct ctrl_reg, reserved5), 1541da177e4SLinus Torvalds CTRL_RESERVED6 = offsetof(struct ctrl_reg, reserved6), 1551da177e4SLinus Torvalds CTRL_RESERVED7 = offsetof(struct ctrl_reg, reserved7), 1561da177e4SLinus Torvalds CTRL_RESERVED8 = offsetof(struct ctrl_reg, reserved8), 1571da177e4SLinus Torvalds SLOT_MASK = offsetof(struct ctrl_reg, slot_mask), 1581da177e4SLinus Torvalds CTRL_RESERVED9 = offsetof(struct ctrl_reg, reserved9), 1591da177e4SLinus Torvalds CTRL_RESERVED10 = offsetof(struct ctrl_reg, reserved10), 1601da177e4SLinus Torvalds CTRL_RESERVED11 = offsetof(struct ctrl_reg, reserved11), 1611da177e4SLinus Torvalds SLOT_SERR = offsetof(struct ctrl_reg, slot_SERR), 1621da177e4SLinus Torvalds SLOT_POWER = offsetof(struct ctrl_reg, slot_power), 1631da177e4SLinus Torvalds NEXT_CURR_FREQ = offsetof(struct ctrl_reg, next_curr_freq), 1641da177e4SLinus Torvalds RESET_FREQ_MODE = offsetof(struct ctrl_reg, reset_freq_mode), 1651da177e4SLinus Torvalds }; 1661da177e4SLinus Torvalds 1671da177e4SLinus Torvalds struct hrt { 1681da177e4SLinus Torvalds char sig0; 1691da177e4SLinus Torvalds char sig1; 1701da177e4SLinus Torvalds char sig2; 1711da177e4SLinus Torvalds char sig3; 1721da177e4SLinus Torvalds u16 unused_IRQ; 1731da177e4SLinus Torvalds u16 PCIIRQ; 1741da177e4SLinus Torvalds u8 number_of_entries; 1751da177e4SLinus Torvalds u8 revision; 1761da177e4SLinus Torvalds u16 reserved1; 1771da177e4SLinus Torvalds u32 reserved2; 1781da177e4SLinus Torvalds } __attribute__ ((packed)); 1791da177e4SLinus Torvalds 180427438c6SAlex Chiang /* offsets to the hotplug resource table registers based on the above 181427438c6SAlex Chiang * structure layout 182427438c6SAlex Chiang */ 1831da177e4SLinus Torvalds enum hrt_offsets { 1841da177e4SLinus Torvalds SIG0 = offsetof(struct hrt, sig0), 1851da177e4SLinus Torvalds SIG1 = offsetof(struct hrt, sig1), 1861da177e4SLinus Torvalds SIG2 = offsetof(struct hrt, sig2), 1871da177e4SLinus Torvalds SIG3 = offsetof(struct hrt, sig3), 1881da177e4SLinus Torvalds UNUSED_IRQ = offsetof(struct hrt, unused_IRQ), 1891da177e4SLinus Torvalds PCIIRQ = offsetof(struct hrt, PCIIRQ), 1901da177e4SLinus Torvalds NUMBER_OF_ENTRIES = offsetof(struct hrt, number_of_entries), 1911da177e4SLinus Torvalds REVISION = offsetof(struct hrt, revision), 1921da177e4SLinus Torvalds HRT_RESERVED1 = offsetof(struct hrt, reserved1), 1931da177e4SLinus Torvalds HRT_RESERVED2 = offsetof(struct hrt, reserved2), 1941da177e4SLinus Torvalds }; 1951da177e4SLinus Torvalds 1961da177e4SLinus Torvalds struct slot_rt { 1971da177e4SLinus Torvalds u8 dev_func; 1981da177e4SLinus Torvalds u8 primary_bus; 1991da177e4SLinus Torvalds u8 secondary_bus; 2001da177e4SLinus Torvalds u8 max_bus; 2011da177e4SLinus Torvalds u16 io_base; 2021da177e4SLinus Torvalds u16 io_length; 2031da177e4SLinus Torvalds u16 mem_base; 2041da177e4SLinus Torvalds u16 mem_length; 2051da177e4SLinus Torvalds u16 pre_mem_base; 2061da177e4SLinus Torvalds u16 pre_mem_length; 2071da177e4SLinus Torvalds } __attribute__ ((packed)); 2081da177e4SLinus Torvalds 209427438c6SAlex Chiang /* offsets to the hotplug slot resource table registers based on the above 210427438c6SAlex Chiang * structure layout 211427438c6SAlex Chiang */ 2121da177e4SLinus Torvalds enum slot_rt_offsets { 2131da177e4SLinus Torvalds DEV_FUNC = offsetof(struct slot_rt, dev_func), 2141da177e4SLinus Torvalds PRIMARY_BUS = offsetof(struct slot_rt, primary_bus), 2151da177e4SLinus Torvalds SECONDARY_BUS = offsetof(struct slot_rt, secondary_bus), 2161da177e4SLinus Torvalds MAX_BUS = offsetof(struct slot_rt, max_bus), 2171da177e4SLinus Torvalds IO_BASE = offsetof(struct slot_rt, io_base), 2181da177e4SLinus Torvalds IO_LENGTH = offsetof(struct slot_rt, io_length), 2191da177e4SLinus Torvalds MEM_BASE = offsetof(struct slot_rt, mem_base), 2201da177e4SLinus Torvalds MEM_LENGTH = offsetof(struct slot_rt, mem_length), 2211da177e4SLinus Torvalds PRE_MEM_BASE = offsetof(struct slot_rt, pre_mem_base), 2221da177e4SLinus Torvalds PRE_MEM_LENGTH = offsetof(struct slot_rt, pre_mem_length), 2231da177e4SLinus Torvalds }; 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds struct pci_func { 2261da177e4SLinus Torvalds struct pci_func *next; 2271da177e4SLinus Torvalds u8 bus; 2281da177e4SLinus Torvalds u8 device; 2291da177e4SLinus Torvalds u8 function; 2301da177e4SLinus Torvalds u8 is_a_board; 2311da177e4SLinus Torvalds u16 status; 2321da177e4SLinus Torvalds u8 configured; 2331da177e4SLinus Torvalds u8 switch_save; 2341da177e4SLinus Torvalds u8 presence_save; 2351da177e4SLinus Torvalds u32 base_length[0x06]; 2361da177e4SLinus Torvalds u8 base_type[0x06]; 2371da177e4SLinus Torvalds u16 reserved2; 2381da177e4SLinus Torvalds u32 config_space[0x20]; 2391da177e4SLinus Torvalds struct pci_resource *mem_head; 2401da177e4SLinus Torvalds struct pci_resource *p_mem_head; 2411da177e4SLinus Torvalds struct pci_resource *io_head; 2421da177e4SLinus Torvalds struct pci_resource *bus_head; 2431da177e4SLinus Torvalds struct timer_list *p_task_event; 2441da177e4SLinus Torvalds struct pci_dev *pci_dev; 2451da177e4SLinus Torvalds }; 2461da177e4SLinus Torvalds 2471da177e4SLinus Torvalds struct slot { 2481da177e4SLinus Torvalds struct slot *next; 2491da177e4SLinus Torvalds u8 bus; 2501da177e4SLinus Torvalds u8 device; 2511da177e4SLinus Torvalds u8 number; 2521da177e4SLinus Torvalds u8 is_a_board; 2531da177e4SLinus Torvalds u8 configured; 2541da177e4SLinus Torvalds u8 state; 2551da177e4SLinus Torvalds u8 switch_save; 2561da177e4SLinus Torvalds u8 presence_save; 2571da177e4SLinus Torvalds u32 capabilities; 2581da177e4SLinus Torvalds u16 reserved2; 2591da177e4SLinus Torvalds struct timer_list task_event; 2601da177e4SLinus Torvalds u8 hp_slot; 2611da177e4SLinus Torvalds struct controller *ctrl; 2621da177e4SLinus Torvalds void __iomem *p_sm_slot; 263*125450f8SLukas Wunner struct hotplug_slot hotplug_slot; 2641da177e4SLinus Torvalds }; 2651da177e4SLinus Torvalds 2661da177e4SLinus Torvalds struct pci_resource { 2671da177e4SLinus Torvalds struct pci_resource *next; 2681da177e4SLinus Torvalds u32 base; 2691da177e4SLinus Torvalds u32 length; 2701da177e4SLinus Torvalds }; 2711da177e4SLinus Torvalds 2721da177e4SLinus Torvalds struct event_info { 2731da177e4SLinus Torvalds u32 event_type; 2741da177e4SLinus Torvalds u8 hp_slot; 2751da177e4SLinus Torvalds }; 2761da177e4SLinus Torvalds 2771da177e4SLinus Torvalds struct controller { 2781da177e4SLinus Torvalds struct controller *next; 2791da177e4SLinus Torvalds u32 ctrl_int_comp; 2806aa4cdd0SIngo Molnar struct mutex crit_sect; /* critical section mutex */ 2811da177e4SLinus Torvalds void __iomem *hpc_reg; /* cookie for our pci controller location */ 2821da177e4SLinus Torvalds struct pci_resource *mem_head; 2831da177e4SLinus Torvalds struct pci_resource *p_mem_head; 2841da177e4SLinus Torvalds struct pci_resource *io_head; 2851da177e4SLinus Torvalds struct pci_resource *bus_head; 2861da177e4SLinus Torvalds struct pci_dev *pci_dev; 2871da177e4SLinus Torvalds struct pci_bus *pci_bus; 2881da177e4SLinus Torvalds struct event_info event_queue[10]; 2891da177e4SLinus Torvalds struct slot *slot; 2901da177e4SLinus Torvalds u8 next_event; 2911da177e4SLinus Torvalds u8 interrupt; 2921da177e4SLinus Torvalds u8 cfgspc_irq; 2931da177e4SLinus Torvalds u8 bus; /* bus number for the pci hotplug controller */ 2941da177e4SLinus Torvalds u8 rev; 2951da177e4SLinus Torvalds u8 slot_device_offset; 2961da177e4SLinus Torvalds u8 first_slot; 2971da177e4SLinus Torvalds u8 add_support; 2981da177e4SLinus Torvalds u8 push_flag; 2991da177e4SLinus Torvalds u8 push_button; /* 0 = no pushbutton, 1 = pushbutton present */ 3001da177e4SLinus Torvalds u8 slot_switch_type; /* 0 = no switch, 1 = switch present */ 3011da177e4SLinus Torvalds u8 defeature_PHP; /* 0 = PHP not supported, 1 = PHP supported */ 3021da177e4SLinus Torvalds u8 alternate_base_address; /* 0 = not supported, 1 = supported */ 3031da177e4SLinus Torvalds u8 pci_config_space; /* Index/data access to working registers 0 = not supported, 1 = supported */ 3041da177e4SLinus Torvalds u8 pcix_speed_capability; /* PCI-X */ 3051da177e4SLinus Torvalds u8 pcix_support; /* PCI-X */ 3061da177e4SLinus Torvalds u16 vendor_id; 3071da177e4SLinus Torvalds struct work_struct int_task_event; 3081da177e4SLinus Torvalds wait_queue_head_t queue; /* sleep & wake process */ 3099f3f4681SGreg Kroah-Hartman struct dentry *dentry; /* debugfs dentry */ 3101da177e4SLinus Torvalds }; 3111da177e4SLinus Torvalds 3121da177e4SLinus Torvalds struct irq_mapping { 3131da177e4SLinus Torvalds u8 barber_pole; 3141da177e4SLinus Torvalds u8 valid_INT; 3151da177e4SLinus Torvalds u8 interrupt[4]; 3161da177e4SLinus Torvalds }; 3171da177e4SLinus Torvalds 3181da177e4SLinus Torvalds struct resource_lists { 3191da177e4SLinus Torvalds struct pci_resource *mem_head; 3201da177e4SLinus Torvalds struct pci_resource *p_mem_head; 3211da177e4SLinus Torvalds struct pci_resource *io_head; 3221da177e4SLinus Torvalds struct pci_resource *bus_head; 3231da177e4SLinus Torvalds struct irq_mapping *irqs; 3241da177e4SLinus Torvalds }; 3251da177e4SLinus Torvalds 3261da177e4SLinus Torvalds #define ROM_PHY_ADDR 0x0F0000 3271da177e4SLinus Torvalds #define ROM_PHY_LEN 0x00ffff 3281da177e4SLinus Torvalds 3291da177e4SLinus Torvalds #define PCI_HPC_ID 0xA0F7 3301da177e4SLinus Torvalds #define PCI_SUB_HPC_ID 0xA2F7 3311da177e4SLinus Torvalds #define PCI_SUB_HPC_ID2 0xA2F8 3321da177e4SLinus Torvalds #define PCI_SUB_HPC_ID3 0xA2F9 3331da177e4SLinus Torvalds #define PCI_SUB_HPC_ID_INTC 0xA2FA 3341da177e4SLinus Torvalds #define PCI_SUB_HPC_ID4 0xA2FD 3351da177e4SLinus Torvalds 3361da177e4SLinus Torvalds #define INT_BUTTON_IGNORE 0 3371da177e4SLinus Torvalds #define INT_PRESENCE_ON 1 3381da177e4SLinus Torvalds #define INT_PRESENCE_OFF 2 3391da177e4SLinus Torvalds #define INT_SWITCH_CLOSE 3 3401da177e4SLinus Torvalds #define INT_SWITCH_OPEN 4 3411da177e4SLinus Torvalds #define INT_POWER_FAULT 5 3421da177e4SLinus Torvalds #define INT_POWER_FAULT_CLEAR 6 3431da177e4SLinus Torvalds #define INT_BUTTON_PRESS 7 3441da177e4SLinus Torvalds #define INT_BUTTON_RELEASE 8 3451da177e4SLinus Torvalds #define INT_BUTTON_CANCEL 9 3461da177e4SLinus Torvalds 3471da177e4SLinus Torvalds #define STATIC_STATE 0 3481da177e4SLinus Torvalds #define BLINKINGON_STATE 1 3491da177e4SLinus Torvalds #define BLINKINGOFF_STATE 2 3501da177e4SLinus Torvalds #define POWERON_STATE 3 3511da177e4SLinus Torvalds #define POWEROFF_STATE 4 3521da177e4SLinus Torvalds 3531da177e4SLinus Torvalds #define PCISLOT_INTERLOCK_CLOSED 0x00000001 3541da177e4SLinus Torvalds #define PCISLOT_ADAPTER_PRESENT 0x00000002 3551da177e4SLinus Torvalds #define PCISLOT_POWERED 0x00000004 3561da177e4SLinus Torvalds #define PCISLOT_66_MHZ_OPERATION 0x00000008 3571da177e4SLinus Torvalds #define PCISLOT_64_BIT_OPERATION 0x00000010 3581da177e4SLinus Torvalds #define PCISLOT_REPLACE_SUPPORTED 0x00000020 3591da177e4SLinus Torvalds #define PCISLOT_ADD_SUPPORTED 0x00000040 3601da177e4SLinus Torvalds #define PCISLOT_INTERLOCK_SUPPORTED 0x00000080 3611da177e4SLinus Torvalds #define PCISLOT_66_MHZ_SUPPORTED 0x00000100 3621da177e4SLinus Torvalds #define PCISLOT_64_BIT_SUPPORTED 0x00000200 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds #define PCI_TO_PCI_BRIDGE_CLASS 0x00060400 3651da177e4SLinus Torvalds 3661da177e4SLinus Torvalds #define INTERLOCK_OPEN 0x00000002 3671da177e4SLinus Torvalds #define ADD_NOT_SUPPORTED 0x00000003 3681da177e4SLinus Torvalds #define CARD_FUNCTIONING 0x00000005 3691da177e4SLinus Torvalds #define ADAPTER_NOT_SAME 0x00000006 3701da177e4SLinus Torvalds #define NO_ADAPTER_PRESENT 0x00000009 3711da177e4SLinus Torvalds #define NOT_ENOUGH_RESOURCES 0x0000000B 3721da177e4SLinus Torvalds #define DEVICE_TYPE_NOT_SUPPORTED 0x0000000C 3731da177e4SLinus Torvalds #define POWER_FAILURE 0x0000000E 3741da177e4SLinus Torvalds 3751da177e4SLinus Torvalds #define REMOVE_NOT_SUPPORTED 0x00000003 3761da177e4SLinus Torvalds 3771da177e4SLinus Torvalds 3781da177e4SLinus Torvalds /* 3791da177e4SLinus Torvalds * error Messages 3801da177e4SLinus Torvalds */ 3811da177e4SLinus Torvalds #define msg_initialization_err "Initialization failure, error=%d\n" 3821da177e4SLinus Torvalds #define msg_HPC_rev_error "Unsupported revision of the PCI hot plug controller found.\n" 3831da177e4SLinus Torvalds #define msg_HPC_non_compaq_or_intel "The PCI hot plug controller is not supported by this driver.\n" 3841da177e4SLinus Torvalds #define msg_HPC_not_supported "this system is not supported by this version of cpqphpd. Upgrade to a newer version of cpqphpd\n" 3851da177e4SLinus Torvalds #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" 3861da177e4SLinus Torvalds #define msg_button_on "PCI slot #%d - powering on due to button press.\n" 3871da177e4SLinus Torvalds #define msg_button_off "PCI slot #%d - powering off due to button press.\n" 3881da177e4SLinus Torvalds #define msg_button_cancel "PCI slot #%d - action canceled due to button press.\n" 3891da177e4SLinus Torvalds #define msg_button_ignore "PCI slot #%d - button press ignored. (action in progress...)\n" 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds 3929f3f4681SGreg Kroah-Hartman /* debugfs functions for the hotplug controller info */ 393f39d5b72SBjorn Helgaas void cpqhp_initialize_debugfs(void); 394f39d5b72SBjorn Helgaas void cpqhp_shutdown_debugfs(void); 395f39d5b72SBjorn Helgaas void cpqhp_create_debugfs_files(struct controller *ctrl); 396f39d5b72SBjorn Helgaas void cpqhp_remove_debugfs_files(struct controller *ctrl); 3971da177e4SLinus Torvalds 3981da177e4SLinus Torvalds /* controller functions */ 39934d773f6SKees Cook void cpqhp_pushbutton_thread(struct timer_list *t); 400f39d5b72SBjorn Helgaas irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data); 401f39d5b72SBjorn Helgaas int cpqhp_find_available_resources(struct controller *ctrl, 40286a58023SAlex Chiang void __iomem *rom_start); 403f39d5b72SBjorn Helgaas int cpqhp_event_start_thread(void); 404f39d5b72SBjorn Helgaas void cpqhp_event_stop_thread(void); 405f39d5b72SBjorn Helgaas struct pci_func *cpqhp_slot_create(unsigned char busnumber); 406f39d5b72SBjorn Helgaas struct pci_func *cpqhp_slot_find(unsigned char bus, unsigned char device, 40786a58023SAlex Chiang unsigned char index); 408f39d5b72SBjorn Helgaas int cpqhp_process_SI(struct controller *ctrl, struct pci_func *func); 409f39d5b72SBjorn Helgaas int cpqhp_process_SS(struct controller *ctrl, struct pci_func *func); 410f39d5b72SBjorn Helgaas int cpqhp_hardware_test(struct controller *ctrl, int test_num); 4111da177e4SLinus Torvalds 4121da177e4SLinus Torvalds /* resource functions */ 413f39d5b72SBjorn Helgaas int cpqhp_resource_sort_and_combine(struct pci_resource **head); 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds /* pci functions */ 416f39d5b72SBjorn Helgaas int cpqhp_set_irq(u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num); 417f39d5b72SBjorn Helgaas int cpqhp_get_bus_dev(struct controller *ctrl, u8 *bus_num, u8 *dev_num, 41886a58023SAlex Chiang u8 slot); 419f39d5b72SBjorn Helgaas int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug); 420f39d5b72SBjorn Helgaas int cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func *func); 421f39d5b72SBjorn Helgaas int cpqhp_save_used_resources(struct controller *ctrl, struct pci_func *func); 422f39d5b72SBjorn Helgaas int cpqhp_configure_board(struct controller *ctrl, struct pci_func *func); 423f39d5b72SBjorn Helgaas int cpqhp_save_slot_config(struct controller *ctrl, struct pci_func *new_slot); 424f39d5b72SBjorn Helgaas int cpqhp_valid_replace(struct controller *ctrl, struct pci_func *func); 425f39d5b72SBjorn Helgaas void cpqhp_destroy_board_resources(struct pci_func *func); 426f39d5b72SBjorn Helgaas int cpqhp_return_board_resources(struct pci_func *func, 42786a58023SAlex Chiang struct resource_lists *resources); 428f39d5b72SBjorn Helgaas void cpqhp_destroy_resource_list(struct resource_lists *resources); 429f39d5b72SBjorn Helgaas int cpqhp_configure_device(struct controller *ctrl, struct pci_func *func); 430f39d5b72SBjorn Helgaas int cpqhp_unconfigure_device(struct pci_func *func); 4311da177e4SLinus Torvalds 4321da177e4SLinus Torvalds /* Global variables */ 4331da177e4SLinus Torvalds extern int cpqhp_debug; 4341da177e4SLinus Torvalds extern int cpqhp_legacy_mode; 4351da177e4SLinus Torvalds extern struct controller *cpqhp_ctrl_list; 4361da177e4SLinus Torvalds extern struct pci_func *cpqhp_slot_list[256]; 437b019ee67SAlex Chiang extern struct irq_routing_table *cpqhp_routing_table; 4381da177e4SLinus Torvalds 4391da177e4SLinus Torvalds /* these can be gotten rid of, but for debugging they are purty */ 4401da177e4SLinus Torvalds extern u8 cpqhp_nic_irq; 4411da177e4SLinus Torvalds extern u8 cpqhp_disk_irq; 4421da177e4SLinus Torvalds 4431da177e4SLinus Torvalds 4441da177e4SLinus Torvalds /* inline functions */ 4451da177e4SLinus Torvalds 4466d1e87daSAlex Chiang static inline const char *slot_name(struct slot *slot) 44730ac7acdSAlex Chiang { 448*125450f8SLukas Wunner return hotplug_slot_name(&slot->hotplug_slot); 449*125450f8SLukas Wunner } 450*125450f8SLukas Wunner 451*125450f8SLukas Wunner static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot) 452*125450f8SLukas Wunner { 453*125450f8SLukas Wunner return container_of(hotplug_slot, struct slot, hotplug_slot); 45430ac7acdSAlex Chiang } 45530ac7acdSAlex Chiang 4561da177e4SLinus Torvalds /* 4571da177e4SLinus Torvalds * return_resource 4581da177e4SLinus Torvalds * 4591da177e4SLinus Torvalds * Puts node back in the resource list pointed to by head 4601da177e4SLinus Torvalds */ 46186a58023SAlex Chiang static inline void return_resource(struct pci_resource **head, 46286a58023SAlex Chiang struct pci_resource *node) 4631da177e4SLinus Torvalds { 4641da177e4SLinus Torvalds if (!node || !head) 4651da177e4SLinus Torvalds return; 4661da177e4SLinus Torvalds node->next = *head; 4671da177e4SLinus Torvalds *head = node; 4681da177e4SLinus Torvalds } 4691da177e4SLinus Torvalds 4701da177e4SLinus Torvalds static inline void set_SOGO(struct controller *ctrl) 4711da177e4SLinus Torvalds { 4721da177e4SLinus Torvalds u16 misc; 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds misc = readw(ctrl->hpc_reg + MISC); 4751da177e4SLinus Torvalds misc = (misc | 0x0001) & 0xFFFB; 4761da177e4SLinus Torvalds writew(misc, ctrl->hpc_reg + MISC); 4771da177e4SLinus Torvalds } 4781da177e4SLinus Torvalds 4791da177e4SLinus Torvalds 4801da177e4SLinus Torvalds static inline void amber_LED_on(struct controller *ctrl, u8 slot) 4811da177e4SLinus Torvalds { 4821da177e4SLinus Torvalds u32 led_control; 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds led_control = readl(ctrl->hpc_reg + LED_CONTROL); 4851da177e4SLinus Torvalds led_control |= (0x01010000L << slot); 4861da177e4SLinus Torvalds writel(led_control, ctrl->hpc_reg + LED_CONTROL); 4871da177e4SLinus Torvalds } 4881da177e4SLinus Torvalds 4891da177e4SLinus Torvalds 4901da177e4SLinus Torvalds static inline void amber_LED_off(struct controller *ctrl, u8 slot) 4911da177e4SLinus Torvalds { 4921da177e4SLinus Torvalds u32 led_control; 4931da177e4SLinus Torvalds 4941da177e4SLinus Torvalds led_control = readl(ctrl->hpc_reg + LED_CONTROL); 4951da177e4SLinus Torvalds led_control &= ~(0x01010000L << slot); 4961da177e4SLinus Torvalds writel(led_control, ctrl->hpc_reg + LED_CONTROL); 4971da177e4SLinus Torvalds } 4981da177e4SLinus Torvalds 4991da177e4SLinus Torvalds 5001da177e4SLinus Torvalds static inline int read_amber_LED(struct controller *ctrl, u8 slot) 5011da177e4SLinus Torvalds { 5021da177e4SLinus Torvalds u32 led_control; 5031da177e4SLinus Torvalds 5041da177e4SLinus Torvalds led_control = readl(ctrl->hpc_reg + LED_CONTROL); 5051da177e4SLinus Torvalds led_control &= (0x01010000L << slot); 5061da177e4SLinus Torvalds 5071da177e4SLinus Torvalds return led_control ? 1 : 0; 5081da177e4SLinus Torvalds } 5091da177e4SLinus Torvalds 5101da177e4SLinus Torvalds 5111da177e4SLinus Torvalds static inline void green_LED_on(struct controller *ctrl, u8 slot) 5121da177e4SLinus Torvalds { 5131da177e4SLinus Torvalds u32 led_control; 5141da177e4SLinus Torvalds 5151da177e4SLinus Torvalds led_control = readl(ctrl->hpc_reg + LED_CONTROL); 5161da177e4SLinus Torvalds led_control |= 0x0101L << slot; 5171da177e4SLinus Torvalds writel(led_control, ctrl->hpc_reg + LED_CONTROL); 5181da177e4SLinus Torvalds } 5191da177e4SLinus Torvalds 5201da177e4SLinus Torvalds static inline void green_LED_off(struct controller *ctrl, u8 slot) 5211da177e4SLinus Torvalds { 5221da177e4SLinus Torvalds u32 led_control; 5231da177e4SLinus Torvalds 5241da177e4SLinus Torvalds led_control = readl(ctrl->hpc_reg + LED_CONTROL); 5251da177e4SLinus Torvalds led_control &= ~(0x0101L << slot); 5261da177e4SLinus Torvalds writel(led_control, ctrl->hpc_reg + LED_CONTROL); 5271da177e4SLinus Torvalds } 5281da177e4SLinus Torvalds 5291da177e4SLinus Torvalds 5301da177e4SLinus Torvalds static inline void green_LED_blink(struct controller *ctrl, u8 slot) 5311da177e4SLinus Torvalds { 5321da177e4SLinus Torvalds u32 led_control; 5331da177e4SLinus Torvalds 5341da177e4SLinus Torvalds led_control = readl(ctrl->hpc_reg + LED_CONTROL); 5351da177e4SLinus Torvalds led_control &= ~(0x0101L << slot); 5361da177e4SLinus Torvalds led_control |= (0x0001L << slot); 5371da177e4SLinus Torvalds writel(led_control, ctrl->hpc_reg + LED_CONTROL); 5381da177e4SLinus Torvalds } 5391da177e4SLinus Torvalds 5401da177e4SLinus Torvalds 5411da177e4SLinus Torvalds static inline void slot_disable(struct controller *ctrl, u8 slot) 5421da177e4SLinus Torvalds { 5431da177e4SLinus Torvalds u8 slot_enable; 5441da177e4SLinus Torvalds 5451da177e4SLinus Torvalds slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 5461da177e4SLinus Torvalds slot_enable &= ~(0x01 << slot); 5471da177e4SLinus Torvalds writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE); 5481da177e4SLinus Torvalds } 5491da177e4SLinus Torvalds 5501da177e4SLinus Torvalds 5511da177e4SLinus Torvalds static inline void slot_enable(struct controller *ctrl, u8 slot) 5521da177e4SLinus Torvalds { 5531da177e4SLinus Torvalds u8 slot_enable; 5541da177e4SLinus Torvalds 5551da177e4SLinus Torvalds slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 5561da177e4SLinus Torvalds slot_enable |= (0x01 << slot); 5571da177e4SLinus Torvalds writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE); 5581da177e4SLinus Torvalds } 5591da177e4SLinus Torvalds 5601da177e4SLinus Torvalds 5611da177e4SLinus Torvalds static inline u8 is_slot_enabled(struct controller *ctrl, u8 slot) 5621da177e4SLinus Torvalds { 5631da177e4SLinus Torvalds u8 slot_enable; 5641da177e4SLinus Torvalds 5651da177e4SLinus Torvalds slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 5661da177e4SLinus Torvalds slot_enable &= (0x01 << slot); 5671da177e4SLinus Torvalds return slot_enable ? 1 : 0; 5681da177e4SLinus Torvalds } 5691da177e4SLinus Torvalds 5701da177e4SLinus Torvalds 5711da177e4SLinus Torvalds static inline u8 read_slot_enable(struct controller *ctrl) 5721da177e4SLinus Torvalds { 5731da177e4SLinus Torvalds return readb(ctrl->hpc_reg + SLOT_ENABLE); 5741da177e4SLinus Torvalds } 5751da177e4SLinus Torvalds 5761da177e4SLinus Torvalds 577427438c6SAlex Chiang /** 5781da177e4SLinus Torvalds * get_controller_speed - find the current frequency/mode of controller. 5791da177e4SLinus Torvalds * 5801da177e4SLinus Torvalds * @ctrl: controller to get frequency/mode for. 5811da177e4SLinus Torvalds * 5821da177e4SLinus Torvalds * Returns controller speed. 5831da177e4SLinus Torvalds */ 5841da177e4SLinus Torvalds static inline u8 get_controller_speed(struct controller *ctrl) 5851da177e4SLinus Torvalds { 5861da177e4SLinus Torvalds u8 curr_freq; 5871da177e4SLinus Torvalds u16 misc; 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds if (ctrl->pcix_support) { 5901da177e4SLinus Torvalds curr_freq = readb(ctrl->hpc_reg + NEXT_CURR_FREQ); 5911da177e4SLinus Torvalds if ((curr_freq & 0xB0) == 0xB0) 5921da177e4SLinus Torvalds return PCI_SPEED_133MHz_PCIX; 5931da177e4SLinus Torvalds if ((curr_freq & 0xA0) == 0xA0) 5941da177e4SLinus Torvalds return PCI_SPEED_100MHz_PCIX; 5951da177e4SLinus Torvalds if ((curr_freq & 0x90) == 0x90) 5961da177e4SLinus Torvalds return PCI_SPEED_66MHz_PCIX; 5971da177e4SLinus Torvalds if (curr_freq & 0x10) 5981da177e4SLinus Torvalds return PCI_SPEED_66MHz; 5991da177e4SLinus Torvalds 6001da177e4SLinus Torvalds return PCI_SPEED_33MHz; 6011da177e4SLinus Torvalds } 6021da177e4SLinus Torvalds 6031da177e4SLinus Torvalds misc = readw(ctrl->hpc_reg + MISC); 6041da177e4SLinus Torvalds return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz; 6051da177e4SLinus Torvalds } 6061da177e4SLinus Torvalds 6071da177e4SLinus Torvalds 608427438c6SAlex Chiang /** 6091da177e4SLinus Torvalds * get_adapter_speed - find the max supported frequency/mode of adapter. 6101da177e4SLinus Torvalds * 6111da177e4SLinus Torvalds * @ctrl: hotplug controller. 6121da177e4SLinus Torvalds * @hp_slot: hotplug slot where adapter is installed. 6131da177e4SLinus Torvalds * 6141da177e4SLinus Torvalds * Returns adapter speed. 6151da177e4SLinus Torvalds */ 6161da177e4SLinus Torvalds static inline u8 get_adapter_speed(struct controller *ctrl, u8 hp_slot) 6171da177e4SLinus Torvalds { 6181da177e4SLinus Torvalds u32 temp_dword = readl(ctrl->hpc_reg + NON_INT_INPUT); 6191da177e4SLinus Torvalds dbg("slot: %d, PCIXCAP: %8x\n", hp_slot, temp_dword); 6201da177e4SLinus Torvalds if (ctrl->pcix_support) { 6211da177e4SLinus Torvalds if (temp_dword & (0x10000 << hp_slot)) 6221da177e4SLinus Torvalds return PCI_SPEED_133MHz_PCIX; 6231da177e4SLinus Torvalds if (temp_dword & (0x100 << hp_slot)) 6241da177e4SLinus Torvalds return PCI_SPEED_66MHz_PCIX; 6251da177e4SLinus Torvalds } 6261da177e4SLinus Torvalds 6271da177e4SLinus Torvalds if (temp_dword & (0x01 << hp_slot)) 6281da177e4SLinus Torvalds return PCI_SPEED_66MHz; 6291da177e4SLinus Torvalds 6301da177e4SLinus Torvalds return PCI_SPEED_33MHz; 6311da177e4SLinus Torvalds } 6321da177e4SLinus Torvalds 6331da177e4SLinus Torvalds static inline void enable_slot_power(struct controller *ctrl, u8 slot) 6341da177e4SLinus Torvalds { 6351da177e4SLinus Torvalds u8 slot_power; 6361da177e4SLinus Torvalds 6371da177e4SLinus Torvalds slot_power = readb(ctrl->hpc_reg + SLOT_POWER); 6381da177e4SLinus Torvalds slot_power |= (0x01 << slot); 6391da177e4SLinus Torvalds writeb(slot_power, ctrl->hpc_reg + SLOT_POWER); 6401da177e4SLinus Torvalds } 6411da177e4SLinus Torvalds 6421da177e4SLinus Torvalds static inline void disable_slot_power(struct controller *ctrl, u8 slot) 6431da177e4SLinus Torvalds { 6441da177e4SLinus Torvalds u8 slot_power; 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds slot_power = readb(ctrl->hpc_reg + SLOT_POWER); 6471da177e4SLinus Torvalds slot_power &= ~(0x01 << slot); 6481da177e4SLinus Torvalds writeb(slot_power, ctrl->hpc_reg + SLOT_POWER); 6491da177e4SLinus Torvalds } 6501da177e4SLinus Torvalds 6511da177e4SLinus Torvalds 6521da177e4SLinus Torvalds static inline int cpq_get_attention_status(struct controller *ctrl, struct slot *slot) 6531da177e4SLinus Torvalds { 6541da177e4SLinus Torvalds u8 hp_slot; 6551da177e4SLinus Torvalds 6561da177e4SLinus Torvalds hp_slot = slot->device - ctrl->slot_device_offset; 6571da177e4SLinus Torvalds 6581da177e4SLinus Torvalds return read_amber_LED(ctrl, hp_slot); 6591da177e4SLinus Torvalds } 6601da177e4SLinus Torvalds 6611da177e4SLinus Torvalds 6621da177e4SLinus Torvalds static inline int get_slot_enabled(struct controller *ctrl, struct slot *slot) 6631da177e4SLinus Torvalds { 6641da177e4SLinus Torvalds u8 hp_slot; 6651da177e4SLinus Torvalds 6661da177e4SLinus Torvalds hp_slot = slot->device - ctrl->slot_device_offset; 6671da177e4SLinus Torvalds 6681da177e4SLinus Torvalds return is_slot_enabled(ctrl, hp_slot); 6691da177e4SLinus Torvalds } 6701da177e4SLinus Torvalds 6711da177e4SLinus Torvalds 67286a58023SAlex Chiang static inline int cpq_get_latch_status(struct controller *ctrl, 67386a58023SAlex Chiang struct slot *slot) 6741da177e4SLinus Torvalds { 6751da177e4SLinus Torvalds u32 status; 6761da177e4SLinus Torvalds u8 hp_slot; 6771da177e4SLinus Torvalds 6781da177e4SLinus Torvalds hp_slot = slot->device - ctrl->slot_device_offset; 6791da177e4SLinus Torvalds dbg("%s: slot->device = %d, ctrl->slot_device_offset = %d\n", 68066bef8c0SHarvey Harrison __func__, slot->device, ctrl->slot_device_offset); 6811da177e4SLinus Torvalds 6821da177e4SLinus Torvalds status = (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot)); 6831da177e4SLinus Torvalds 6841da177e4SLinus Torvalds return (status == 0) ? 1 : 0; 6851da177e4SLinus Torvalds } 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds 68886a58023SAlex Chiang static inline int get_presence_status(struct controller *ctrl, 68986a58023SAlex Chiang struct slot *slot) 6901da177e4SLinus Torvalds { 6911da177e4SLinus Torvalds int presence_save = 0; 6921da177e4SLinus Torvalds u8 hp_slot; 6931da177e4SLinus Torvalds u32 tempdword; 6941da177e4SLinus Torvalds 6951da177e4SLinus Torvalds hp_slot = slot->device - ctrl->slot_device_offset; 6961da177e4SLinus Torvalds 6971da177e4SLinus Torvalds tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR); 69886a58023SAlex Chiang presence_save = (int) ((((~tempdword) >> 23) | ((~tempdword) >> 15)) 69986a58023SAlex Chiang >> hp_slot) & 0x02; 7001da177e4SLinus Torvalds 7011da177e4SLinus Torvalds return presence_save; 7021da177e4SLinus Torvalds } 7031da177e4SLinus Torvalds 7041da177e4SLinus Torvalds static inline int wait_for_ctrl_irq(struct controller *ctrl) 7051da177e4SLinus Torvalds { 7061da177e4SLinus Torvalds DECLARE_WAITQUEUE(wait, current); 7071da177e4SLinus Torvalds int retval = 0; 7081da177e4SLinus Torvalds 70966bef8c0SHarvey Harrison dbg("%s - start\n", __func__); 7101da177e4SLinus Torvalds add_wait_queue(&ctrl->queue, &wait); 7111da177e4SLinus Torvalds /* Sleep for up to 1 second to wait for the LED to change. */ 7121da177e4SLinus Torvalds msleep_interruptible(1000); 7131da177e4SLinus Torvalds remove_wait_queue(&ctrl->queue, &wait); 7141da177e4SLinus Torvalds if (signal_pending(current)) 7151da177e4SLinus Torvalds retval = -EINTR; 7161da177e4SLinus Torvalds 71766bef8c0SHarvey Harrison dbg("%s - end\n", __func__); 7181da177e4SLinus Torvalds return retval; 7191da177e4SLinus Torvalds } 7201da177e4SLinus Torvalds 721b019ee67SAlex Chiang #include <asm/pci_x86.h> 722b019ee67SAlex Chiang static inline int cpqhp_routing_table_length(void) 723b019ee67SAlex Chiang { 724b019ee67SAlex Chiang BUG_ON(cpqhp_routing_table == NULL); 725b019ee67SAlex Chiang return ((cpqhp_routing_table->size - sizeof(struct irq_routing_table)) / 726b019ee67SAlex Chiang sizeof(struct irq_info)); 727b019ee67SAlex Chiang } 728b019ee67SAlex Chiang 7291da177e4SLinus Torvalds #endif 730