1/* 2 * Compaq Hot Plug Controller Driver 3 * 4 * Copyright (C) 1995,2001 Compaq Computer Corporation 5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) 6 * Copyright (C) 2001 IBM 7 * 8 * All rights reserved. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or (at 13 * your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 18 * NON INFRINGEMENT. See the GNU General Public License for more 19 * details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 24 * 25 * Send feedback to <greg@kroah.com> 26 * 27 */ 28#ifndef _CPQPHP_H 29#define _CPQPHP_H 30 31#include <linux/interrupt.h> 32#include <asm/io.h> /* for read? and write? functions */ 33#include <linux/delay.h> /* for delays */ 34#include <linux/mutex.h> 35 36#define MY_NAME "cpqphp" 37 38#define dbg(fmt, arg...) do { if (cpqhp_debug) printk(KERN_DEBUG "%s: " fmt , MY_NAME , ## arg); } while (0) 39#define err(format, arg...) printk(KERN_ERR "%s: " format , MY_NAME , ## arg) 40#define info(format, arg...) printk(KERN_INFO "%s: " format , MY_NAME , ## arg) 41#define warn(format, arg...) printk(KERN_WARNING "%s: " format , MY_NAME , ## arg) 42 43 44 45struct smbios_system_slot { 46 u8 type; 47 u8 length; 48 u16 handle; 49 u8 name_string_num; 50 u8 slot_type; 51 u8 slot_width; 52 u8 slot_current_usage; 53 u8 slot_length; 54 u16 slot_number; 55 u8 properties1; 56 u8 properties2; 57} __attribute__ ((packed)); 58 59/* offsets to the smbios generic type based on the above structure layout */ 60enum smbios_system_slot_offsets { 61 SMBIOS_SLOT_GENERIC_TYPE = offsetof(struct smbios_system_slot, type), 62 SMBIOS_SLOT_GENERIC_LENGTH = offsetof(struct smbios_system_slot, length), 63 SMBIOS_SLOT_GENERIC_HANDLE = offsetof(struct smbios_system_slot, handle), 64 SMBIOS_SLOT_NAME_STRING_NUM = offsetof(struct smbios_system_slot, name_string_num), 65 SMBIOS_SLOT_TYPE = offsetof(struct smbios_system_slot, slot_type), 66 SMBIOS_SLOT_WIDTH = offsetof(struct smbios_system_slot, slot_width), 67 SMBIOS_SLOT_CURRENT_USAGE = offsetof(struct smbios_system_slot, slot_current_usage), 68 SMBIOS_SLOT_LENGTH = offsetof(struct smbios_system_slot, slot_length), 69 SMBIOS_SLOT_NUMBER = offsetof(struct smbios_system_slot, slot_number), 70 SMBIOS_SLOT_PROPERTIES1 = offsetof(struct smbios_system_slot, properties1), 71 SMBIOS_SLOT_PROPERTIES2 = offsetof(struct smbios_system_slot, properties2), 72}; 73 74struct smbios_generic { 75 u8 type; 76 u8 length; 77 u16 handle; 78} __attribute__ ((packed)); 79 80/* offsets to the smbios generic type based on the above structure layout */ 81enum smbios_generic_offsets { 82 SMBIOS_GENERIC_TYPE = offsetof(struct smbios_generic, type), 83 SMBIOS_GENERIC_LENGTH = offsetof(struct smbios_generic, length), 84 SMBIOS_GENERIC_HANDLE = offsetof(struct smbios_generic, handle), 85}; 86 87struct smbios_entry_point { 88 char anchor[4]; 89 u8 ep_checksum; 90 u8 ep_length; 91 u8 major_version; 92 u8 minor_version; 93 u16 max_size_entry; 94 u8 ep_rev; 95 u8 reserved[5]; 96 char int_anchor[5]; 97 u8 int_checksum; 98 u16 st_length; 99 u32 st_address; 100 u16 number_of_entrys; 101 u8 bcd_rev; 102} __attribute__ ((packed)); 103 104/* offsets to the smbios entry point based on the above structure layout */ 105enum smbios_entry_point_offsets { 106 ANCHOR = offsetof(struct smbios_entry_point, anchor[0]), 107 EP_CHECKSUM = offsetof(struct smbios_entry_point, ep_checksum), 108 EP_LENGTH = offsetof(struct smbios_entry_point, ep_length), 109 MAJOR_VERSION = offsetof(struct smbios_entry_point, major_version), 110 MINOR_VERSION = offsetof(struct smbios_entry_point, minor_version), 111 MAX_SIZE_ENTRY = offsetof(struct smbios_entry_point, max_size_entry), 112 EP_REV = offsetof(struct smbios_entry_point, ep_rev), 113 INT_ANCHOR = offsetof(struct smbios_entry_point, int_anchor[0]), 114 INT_CHECKSUM = offsetof(struct smbios_entry_point, int_checksum), 115 ST_LENGTH = offsetof(struct smbios_entry_point, st_length), 116 ST_ADDRESS = offsetof(struct smbios_entry_point, st_address), 117 NUMBER_OF_ENTRYS = offsetof(struct smbios_entry_point, number_of_entrys), 118 BCD_REV = offsetof(struct smbios_entry_point, bcd_rev), 119}; 120 121struct ctrl_reg { /* offset */ 122 u8 slot_RST; /* 0x00 */ 123 u8 slot_enable; /* 0x01 */ 124 u16 misc; /* 0x02 */ 125 u32 led_control; /* 0x04 */ 126 u32 int_input_clear; /* 0x08 */ 127 u32 int_mask; /* 0x0a */ 128 u8 reserved0; /* 0x10 */ 129 u8 reserved1; /* 0x11 */ 130 u8 reserved2; /* 0x12 */ 131 u8 gen_output_AB; /* 0x13 */ 132 u32 non_int_input; /* 0x14 */ 133 u32 reserved3; /* 0x18 */ 134 u32 reserved4; /* 0x1a */ 135 u32 reserved5; /* 0x20 */ 136 u8 reserved6; /* 0x24 */ 137 u8 reserved7; /* 0x25 */ 138 u16 reserved8; /* 0x26 */ 139 u8 slot_mask; /* 0x28 */ 140 u8 reserved9; /* 0x29 */ 141 u8 reserved10; /* 0x2a */ 142 u8 reserved11; /* 0x2b */ 143 u8 slot_SERR; /* 0x2c */ 144 u8 slot_power; /* 0x2d */ 145 u8 reserved12; /* 0x2e */ 146 u8 reserved13; /* 0x2f */ 147 u8 next_curr_freq; /* 0x30 */ 148 u8 reset_freq_mode; /* 0x31 */ 149} __attribute__ ((packed)); 150 151/* offsets to the controller registers based on the above structure layout */ 152enum ctrl_offsets { 153 SLOT_RST = offsetof(struct ctrl_reg, slot_RST), 154 SLOT_ENABLE = offsetof(struct ctrl_reg, slot_enable), 155 MISC = offsetof(struct ctrl_reg, misc), 156 LED_CONTROL = offsetof(struct ctrl_reg, led_control), 157 INT_INPUT_CLEAR = offsetof(struct ctrl_reg, int_input_clear), 158 INT_MASK = offsetof(struct ctrl_reg, int_mask), 159 CTRL_RESERVED0 = offsetof(struct ctrl_reg, reserved0), 160 CTRL_RESERVED1 = offsetof(struct ctrl_reg, reserved1), 161 CTRL_RESERVED2 = offsetof(struct ctrl_reg, reserved1), 162 GEN_OUTPUT_AB = offsetof(struct ctrl_reg, gen_output_AB), 163 NON_INT_INPUT = offsetof(struct ctrl_reg, non_int_input), 164 CTRL_RESERVED3 = offsetof(struct ctrl_reg, reserved3), 165 CTRL_RESERVED4 = offsetof(struct ctrl_reg, reserved4), 166 CTRL_RESERVED5 = offsetof(struct ctrl_reg, reserved5), 167 CTRL_RESERVED6 = offsetof(struct ctrl_reg, reserved6), 168 CTRL_RESERVED7 = offsetof(struct ctrl_reg, reserved7), 169 CTRL_RESERVED8 = offsetof(struct ctrl_reg, reserved8), 170 SLOT_MASK = offsetof(struct ctrl_reg, slot_mask), 171 CTRL_RESERVED9 = offsetof(struct ctrl_reg, reserved9), 172 CTRL_RESERVED10 = offsetof(struct ctrl_reg, reserved10), 173 CTRL_RESERVED11 = offsetof(struct ctrl_reg, reserved11), 174 SLOT_SERR = offsetof(struct ctrl_reg, slot_SERR), 175 SLOT_POWER = offsetof(struct ctrl_reg, slot_power), 176 NEXT_CURR_FREQ = offsetof(struct ctrl_reg, next_curr_freq), 177 RESET_FREQ_MODE = offsetof(struct ctrl_reg, reset_freq_mode), 178}; 179 180struct hrt { 181 char sig0; 182 char sig1; 183 char sig2; 184 char sig3; 185 u16 unused_IRQ; 186 u16 PCIIRQ; 187 u8 number_of_entries; 188 u8 revision; 189 u16 reserved1; 190 u32 reserved2; 191} __attribute__ ((packed)); 192 193/* offsets to the hotplug resource table registers based on the above structure layout */ 194enum hrt_offsets { 195 SIG0 = offsetof(struct hrt, sig0), 196 SIG1 = offsetof(struct hrt, sig1), 197 SIG2 = offsetof(struct hrt, sig2), 198 SIG3 = offsetof(struct hrt, sig3), 199 UNUSED_IRQ = offsetof(struct hrt, unused_IRQ), 200 PCIIRQ = offsetof(struct hrt, PCIIRQ), 201 NUMBER_OF_ENTRIES = offsetof(struct hrt, number_of_entries), 202 REVISION = offsetof(struct hrt, revision), 203 HRT_RESERVED1 = offsetof(struct hrt, reserved1), 204 HRT_RESERVED2 = offsetof(struct hrt, reserved2), 205}; 206 207struct slot_rt { 208 u8 dev_func; 209 u8 primary_bus; 210 u8 secondary_bus; 211 u8 max_bus; 212 u16 io_base; 213 u16 io_length; 214 u16 mem_base; 215 u16 mem_length; 216 u16 pre_mem_base; 217 u16 pre_mem_length; 218} __attribute__ ((packed)); 219 220/* offsets to the hotplug slot resource table registers based on the above structure layout */ 221enum slot_rt_offsets { 222 DEV_FUNC = offsetof(struct slot_rt, dev_func), 223 PRIMARY_BUS = offsetof(struct slot_rt, primary_bus), 224 SECONDARY_BUS = offsetof(struct slot_rt, secondary_bus), 225 MAX_BUS = offsetof(struct slot_rt, max_bus), 226 IO_BASE = offsetof(struct slot_rt, io_base), 227 IO_LENGTH = offsetof(struct slot_rt, io_length), 228 MEM_BASE = offsetof(struct slot_rt, mem_base), 229 MEM_LENGTH = offsetof(struct slot_rt, mem_length), 230 PRE_MEM_BASE = offsetof(struct slot_rt, pre_mem_base), 231 PRE_MEM_LENGTH = offsetof(struct slot_rt, pre_mem_length), 232}; 233 234struct pci_func { 235 struct pci_func *next; 236 u8 bus; 237 u8 device; 238 u8 function; 239 u8 is_a_board; 240 u16 status; 241 u8 configured; 242 u8 switch_save; 243 u8 presence_save; 244 u32 base_length[0x06]; 245 u8 base_type[0x06]; 246 u16 reserved2; 247 u32 config_space[0x20]; 248 struct pci_resource *mem_head; 249 struct pci_resource *p_mem_head; 250 struct pci_resource *io_head; 251 struct pci_resource *bus_head; 252 struct timer_list *p_task_event; 253 struct pci_dev* pci_dev; 254}; 255 256struct slot { 257 struct slot *next; 258 u8 bus; 259 u8 device; 260 u8 number; 261 u8 is_a_board; 262 u8 configured; 263 u8 state; 264 u8 switch_save; 265 u8 presence_save; 266 u32 capabilities; 267 u16 reserved2; 268 struct timer_list task_event; 269 u8 hp_slot; 270 struct controller *ctrl; 271 void __iomem *p_sm_slot; 272 struct hotplug_slot *hotplug_slot; 273}; 274 275struct pci_resource { 276 struct pci_resource * next; 277 u32 base; 278 u32 length; 279}; 280 281struct event_info { 282 u32 event_type; 283 u8 hp_slot; 284}; 285 286struct controller { 287 struct controller *next; 288 u32 ctrl_int_comp; 289 struct mutex crit_sect; /* critical section mutex */ 290 void __iomem *hpc_reg; /* cookie for our pci controller location */ 291 struct pci_resource *mem_head; 292 struct pci_resource *p_mem_head; 293 struct pci_resource *io_head; 294 struct pci_resource *bus_head; 295 struct pci_dev *pci_dev; 296 struct pci_bus *pci_bus; 297 struct event_info event_queue[10]; 298 struct slot *slot; 299 u8 next_event; 300 u8 interrupt; 301 u8 cfgspc_irq; 302 u8 bus; /* bus number for the pci hotplug controller */ 303 u8 rev; 304 u8 slot_device_offset; 305 u8 first_slot; 306 u8 add_support; 307 u8 push_flag; 308 enum pci_bus_speed speed; 309 enum pci_bus_speed speed_capability; 310 u8 push_button; /* 0 = no pushbutton, 1 = pushbutton present */ 311 u8 slot_switch_type; /* 0 = no switch, 1 = switch present */ 312 u8 defeature_PHP; /* 0 = PHP not supported, 1 = PHP supported */ 313 u8 alternate_base_address; /* 0 = not supported, 1 = supported */ 314 u8 pci_config_space; /* Index/data access to working registers 0 = not supported, 1 = supported */ 315 u8 pcix_speed_capability; /* PCI-X */ 316 u8 pcix_support; /* PCI-X */ 317 u16 vendor_id; 318 struct work_struct int_task_event; 319 wait_queue_head_t queue; /* sleep & wake process */ 320 struct dentry *dentry; /* debugfs dentry */ 321}; 322 323struct irq_mapping { 324 u8 barber_pole; 325 u8 valid_INT; 326 u8 interrupt[4]; 327}; 328 329struct resource_lists { 330 struct pci_resource *mem_head; 331 struct pci_resource *p_mem_head; 332 struct pci_resource *io_head; 333 struct pci_resource *bus_head; 334 struct irq_mapping *irqs; 335}; 336 337#define ROM_PHY_ADDR 0x0F0000 338#define ROM_PHY_LEN 0x00ffff 339 340#define PCI_HPC_ID 0xA0F7 341#define PCI_SUB_HPC_ID 0xA2F7 342#define PCI_SUB_HPC_ID2 0xA2F8 343#define PCI_SUB_HPC_ID3 0xA2F9 344#define PCI_SUB_HPC_ID_INTC 0xA2FA 345#define PCI_SUB_HPC_ID4 0xA2FD 346 347#define INT_BUTTON_IGNORE 0 348#define INT_PRESENCE_ON 1 349#define INT_PRESENCE_OFF 2 350#define INT_SWITCH_CLOSE 3 351#define INT_SWITCH_OPEN 4 352#define INT_POWER_FAULT 5 353#define INT_POWER_FAULT_CLEAR 6 354#define INT_BUTTON_PRESS 7 355#define INT_BUTTON_RELEASE 8 356#define INT_BUTTON_CANCEL 9 357 358#define STATIC_STATE 0 359#define BLINKINGON_STATE 1 360#define BLINKINGOFF_STATE 2 361#define POWERON_STATE 3 362#define POWEROFF_STATE 4 363 364#define PCISLOT_INTERLOCK_CLOSED 0x00000001 365#define PCISLOT_ADAPTER_PRESENT 0x00000002 366#define PCISLOT_POWERED 0x00000004 367#define PCISLOT_66_MHZ_OPERATION 0x00000008 368#define PCISLOT_64_BIT_OPERATION 0x00000010 369#define PCISLOT_REPLACE_SUPPORTED 0x00000020 370#define PCISLOT_ADD_SUPPORTED 0x00000040 371#define PCISLOT_INTERLOCK_SUPPORTED 0x00000080 372#define PCISLOT_66_MHZ_SUPPORTED 0x00000100 373#define PCISLOT_64_BIT_SUPPORTED 0x00000200 374 375#define PCI_TO_PCI_BRIDGE_CLASS 0x00060400 376 377#define INTERLOCK_OPEN 0x00000002 378#define ADD_NOT_SUPPORTED 0x00000003 379#define CARD_FUNCTIONING 0x00000005 380#define ADAPTER_NOT_SAME 0x00000006 381#define NO_ADAPTER_PRESENT 0x00000009 382#define NOT_ENOUGH_RESOURCES 0x0000000B 383#define DEVICE_TYPE_NOT_SUPPORTED 0x0000000C 384#define POWER_FAILURE 0x0000000E 385 386#define REMOVE_NOT_SUPPORTED 0x00000003 387 388 389/* 390 * error Messages 391 */ 392#define msg_initialization_err "Initialization failure, error=%d\n" 393#define msg_HPC_rev_error "Unsupported revision of the PCI hot plug controller found.\n" 394#define msg_HPC_non_compaq_or_intel "The PCI hot plug controller is not supported by this driver.\n" 395#define msg_HPC_not_supported "this system is not supported by this version of cpqphpd. Upgrade to a newer version of cpqphpd\n" 396#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" 397#define msg_button_on "PCI slot #%d - powering on due to button press.\n" 398#define msg_button_off "PCI slot #%d - powering off due to button press.\n" 399#define msg_button_cancel "PCI slot #%d - action canceled due to button press.\n" 400#define msg_button_ignore "PCI slot #%d - button press ignored. (action in progress...)\n" 401 402 403/* debugfs functions for the hotplug controller info */ 404extern void cpqhp_initialize_debugfs (void); 405extern void cpqhp_shutdown_debugfs (void); 406extern void cpqhp_create_debugfs_files (struct controller *ctrl); 407extern void cpqhp_remove_debugfs_files (struct controller *ctrl); 408 409/* controller functions */ 410extern void cpqhp_pushbutton_thread (unsigned long event_pointer); 411extern irqreturn_t cpqhp_ctrl_intr (int IRQ, void *data); 412extern int cpqhp_find_available_resources (struct controller *ctrl, void __iomem *rom_start); 413extern int cpqhp_event_start_thread (void); 414extern void cpqhp_event_stop_thread (void); 415extern struct pci_func *cpqhp_slot_create (unsigned char busnumber); 416extern struct pci_func *cpqhp_slot_find (unsigned char bus, unsigned char device, unsigned char index); 417extern int cpqhp_process_SI (struct controller *ctrl, struct pci_func *func); 418extern int cpqhp_process_SS (struct controller *ctrl, struct pci_func *func); 419extern int cpqhp_hardware_test (struct controller *ctrl, int test_num); 420 421/* resource functions */ 422extern int cpqhp_resource_sort_and_combine (struct pci_resource **head); 423 424/* pci functions */ 425extern int cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num); 426extern int cpqhp_get_bus_dev (struct controller *ctrl, u8 *bus_num, u8 *dev_num, u8 slot); 427extern int cpqhp_save_config (struct controller *ctrl, int busnumber, int is_hot_plug); 428extern int cpqhp_save_base_addr_length (struct controller *ctrl, struct pci_func * func); 429extern int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func); 430extern int cpqhp_configure_board (struct controller *ctrl, struct pci_func * func); 431extern int cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot); 432extern int cpqhp_valid_replace (struct controller *ctrl, struct pci_func * func); 433extern void cpqhp_destroy_board_resources (struct pci_func * func); 434extern int cpqhp_return_board_resources (struct pci_func * func, struct resource_lists * resources); 435extern void cpqhp_destroy_resource_list (struct resource_lists * resources); 436extern int cpqhp_configure_device (struct controller* ctrl, struct pci_func* func); 437extern int cpqhp_unconfigure_device (struct pci_func* func); 438 439/* Global variables */ 440extern int cpqhp_debug; 441extern int cpqhp_legacy_mode; 442extern struct controller *cpqhp_ctrl_list; 443extern struct pci_func *cpqhp_slot_list[256]; 444 445/* these can be gotten rid of, but for debugging they are purty */ 446extern u8 cpqhp_nic_irq; 447extern u8 cpqhp_disk_irq; 448 449 450/* inline functions */ 451 452/* 453 * return_resource 454 * 455 * Puts node back in the resource list pointed to by head 456 * 457 */ 458static inline void return_resource(struct pci_resource **head, struct pci_resource *node) 459{ 460 if (!node || !head) 461 return; 462 node->next = *head; 463 *head = node; 464} 465 466static inline void set_SOGO(struct controller *ctrl) 467{ 468 u16 misc; 469 470 misc = readw(ctrl->hpc_reg + MISC); 471 misc = (misc | 0x0001) & 0xFFFB; 472 writew(misc, ctrl->hpc_reg + MISC); 473} 474 475 476static inline void amber_LED_on(struct controller *ctrl, u8 slot) 477{ 478 u32 led_control; 479 480 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 481 led_control |= (0x01010000L << slot); 482 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 483} 484 485 486static inline void amber_LED_off(struct controller *ctrl, u8 slot) 487{ 488 u32 led_control; 489 490 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 491 led_control &= ~(0x01010000L << slot); 492 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 493} 494 495 496static inline int read_amber_LED(struct controller *ctrl, u8 slot) 497{ 498 u32 led_control; 499 500 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 501 led_control &= (0x01010000L << slot); 502 503 return led_control ? 1 : 0; 504} 505 506 507static inline void green_LED_on(struct controller *ctrl, u8 slot) 508{ 509 u32 led_control; 510 511 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 512 led_control |= 0x0101L << slot; 513 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 514} 515 516static inline void green_LED_off(struct controller *ctrl, u8 slot) 517{ 518 u32 led_control; 519 520 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 521 led_control &= ~(0x0101L << slot); 522 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 523} 524 525 526static inline void green_LED_blink(struct controller *ctrl, u8 slot) 527{ 528 u32 led_control; 529 530 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 531 led_control &= ~(0x0101L << slot); 532 led_control |= (0x0001L << slot); 533 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 534} 535 536 537static inline void slot_disable(struct controller *ctrl, u8 slot) 538{ 539 u8 slot_enable; 540 541 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 542 slot_enable &= ~(0x01 << slot); 543 writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE); 544} 545 546 547static inline void slot_enable(struct controller *ctrl, u8 slot) 548{ 549 u8 slot_enable; 550 551 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 552 slot_enable |= (0x01 << slot); 553 writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE); 554} 555 556 557static inline u8 is_slot_enabled(struct controller *ctrl, u8 slot) 558{ 559 u8 slot_enable; 560 561 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 562 slot_enable &= (0x01 << slot); 563 return slot_enable ? 1 : 0; 564} 565 566 567static inline u8 read_slot_enable(struct controller *ctrl) 568{ 569 return readb(ctrl->hpc_reg + SLOT_ENABLE); 570} 571 572 573/* 574 * get_controller_speed - find the current frequency/mode of controller. 575 * 576 * @ctrl: controller to get frequency/mode for. 577 * 578 * Returns controller speed. 579 * 580 */ 581static inline u8 get_controller_speed(struct controller *ctrl) 582{ 583 u8 curr_freq; 584 u16 misc; 585 586 if (ctrl->pcix_support) { 587 curr_freq = readb(ctrl->hpc_reg + NEXT_CURR_FREQ); 588 if ((curr_freq & 0xB0) == 0xB0) 589 return PCI_SPEED_133MHz_PCIX; 590 if ((curr_freq & 0xA0) == 0xA0) 591 return PCI_SPEED_100MHz_PCIX; 592 if ((curr_freq & 0x90) == 0x90) 593 return PCI_SPEED_66MHz_PCIX; 594 if (curr_freq & 0x10) 595 return PCI_SPEED_66MHz; 596 597 return PCI_SPEED_33MHz; 598 } 599 600 misc = readw(ctrl->hpc_reg + MISC); 601 return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz; 602} 603 604 605/* 606 * get_adapter_speed - find the max supported frequency/mode of adapter. 607 * 608 * @ctrl: hotplug controller. 609 * @hp_slot: hotplug slot where adapter is installed. 610 * 611 * Returns adapter speed. 612 * 613 */ 614static inline u8 get_adapter_speed(struct controller *ctrl, u8 hp_slot) 615{ 616 u32 temp_dword = readl(ctrl->hpc_reg + NON_INT_INPUT); 617 dbg("slot: %d, PCIXCAP: %8x\n", hp_slot, temp_dword); 618 if (ctrl->pcix_support) { 619 if (temp_dword & (0x10000 << hp_slot)) 620 return PCI_SPEED_133MHz_PCIX; 621 if (temp_dword & (0x100 << hp_slot)) 622 return PCI_SPEED_66MHz_PCIX; 623 } 624 625 if (temp_dword & (0x01 << hp_slot)) 626 return PCI_SPEED_66MHz; 627 628 return PCI_SPEED_33MHz; 629} 630 631static inline void enable_slot_power(struct controller *ctrl, u8 slot) 632{ 633 u8 slot_power; 634 635 slot_power = readb(ctrl->hpc_reg + SLOT_POWER); 636 slot_power |= (0x01 << slot); 637 writeb(slot_power, ctrl->hpc_reg + SLOT_POWER); 638} 639 640static inline void disable_slot_power(struct controller *ctrl, u8 slot) 641{ 642 u8 slot_power; 643 644 slot_power = readb(ctrl->hpc_reg + SLOT_POWER); 645 slot_power &= ~(0x01 << slot); 646 writeb(slot_power, ctrl->hpc_reg + SLOT_POWER); 647} 648 649 650static inline int cpq_get_attention_status(struct controller *ctrl, struct slot *slot) 651{ 652 u8 hp_slot; 653 654 hp_slot = slot->device - ctrl->slot_device_offset; 655 656 return read_amber_LED(ctrl, hp_slot); 657} 658 659 660static inline int get_slot_enabled(struct controller *ctrl, struct slot *slot) 661{ 662 u8 hp_slot; 663 664 hp_slot = slot->device - ctrl->slot_device_offset; 665 666 return is_slot_enabled(ctrl, hp_slot); 667} 668 669 670static inline int cpq_get_latch_status(struct controller *ctrl, struct slot *slot) 671{ 672 u32 status; 673 u8 hp_slot; 674 675 hp_slot = slot->device - ctrl->slot_device_offset; 676 dbg("%s: slot->device = %d, ctrl->slot_device_offset = %d \n", 677 __FUNCTION__, slot->device, ctrl->slot_device_offset); 678 679 status = (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot)); 680 681 return(status == 0) ? 1 : 0; 682} 683 684 685static inline int get_presence_status(struct controller *ctrl, struct slot *slot) 686{ 687 int presence_save = 0; 688 u8 hp_slot; 689 u32 tempdword; 690 691 hp_slot = slot->device - ctrl->slot_device_offset; 692 693 tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR); 694 presence_save = (int) ((((~tempdword) >> 23) | ((~tempdword) >> 15)) >> hp_slot) & 0x02; 695 696 return presence_save; 697} 698 699#define SLOT_NAME_SIZE 10 700 701static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot) 702{ 703 snprintf(buffer, buffer_size, "%d", slot->number); 704} 705 706 707static inline int wait_for_ctrl_irq(struct controller *ctrl) 708{ 709 DECLARE_WAITQUEUE(wait, current); 710 int retval = 0; 711 712 dbg("%s - start\n", __FUNCTION__); 713 add_wait_queue(&ctrl->queue, &wait); 714 /* Sleep for up to 1 second to wait for the LED to change. */ 715 msleep_interruptible(1000); 716 remove_wait_queue(&ctrl->queue, &wait); 717 if (signal_pending(current)) 718 retval = -EINTR; 719 720 dbg("%s - end\n", __FUNCTION__); 721 return retval; 722} 723 724#endif 725