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 "pci_hotplug.h" 32 #include <linux/interrupt.h> 33 #include <asm/io.h> /* for read? and write? functions */ 34 #include <linux/delay.h> /* for delays */ 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 45 struct 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 */ 60 enum 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 74 struct 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 */ 81 enum 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 87 struct 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 */ 105 enum 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 }; 120 121 struct 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 */ 152 enum 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 }; 179 180 struct 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 */ 194 enum 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 }; 206 207 struct 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 */ 221 enum 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 }; 233 234 struct 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 }; 255 256 struct 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 }; 274 275 struct pci_resource { 276 struct pci_resource * next; 277 u32 base; 278 u32 length; 279 }; 280 281 struct event_info { 282 u32 event_type; 283 u8 hp_slot; 284 }; 285 286 struct controller { 287 struct controller *next; 288 u32 ctrl_int_comp; 289 struct semaphore crit_sect; /* critical section semaphore */ 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 }; 321 322 struct irq_mapping { 323 u8 barber_pole; 324 u8 valid_INT; 325 u8 interrupt[4]; 326 }; 327 328 struct resource_lists { 329 struct pci_resource *mem_head; 330 struct pci_resource *p_mem_head; 331 struct pci_resource *io_head; 332 struct pci_resource *bus_head; 333 struct irq_mapping *irqs; 334 }; 335 336 #define ROM_PHY_ADDR 0x0F0000 337 #define ROM_PHY_LEN 0x00ffff 338 339 #define PCI_HPC_ID 0xA0F7 340 #define PCI_SUB_HPC_ID 0xA2F7 341 #define PCI_SUB_HPC_ID2 0xA2F8 342 #define PCI_SUB_HPC_ID3 0xA2F9 343 #define PCI_SUB_HPC_ID_INTC 0xA2FA 344 #define PCI_SUB_HPC_ID4 0xA2FD 345 346 #define INT_BUTTON_IGNORE 0 347 #define INT_PRESENCE_ON 1 348 #define INT_PRESENCE_OFF 2 349 #define INT_SWITCH_CLOSE 3 350 #define INT_SWITCH_OPEN 4 351 #define INT_POWER_FAULT 5 352 #define INT_POWER_FAULT_CLEAR 6 353 #define INT_BUTTON_PRESS 7 354 #define INT_BUTTON_RELEASE 8 355 #define INT_BUTTON_CANCEL 9 356 357 #define STATIC_STATE 0 358 #define BLINKINGON_STATE 1 359 #define BLINKINGOFF_STATE 2 360 #define POWERON_STATE 3 361 #define POWEROFF_STATE 4 362 363 #define PCISLOT_INTERLOCK_CLOSED 0x00000001 364 #define PCISLOT_ADAPTER_PRESENT 0x00000002 365 #define PCISLOT_POWERED 0x00000004 366 #define PCISLOT_66_MHZ_OPERATION 0x00000008 367 #define PCISLOT_64_BIT_OPERATION 0x00000010 368 #define PCISLOT_REPLACE_SUPPORTED 0x00000020 369 #define PCISLOT_ADD_SUPPORTED 0x00000040 370 #define PCISLOT_INTERLOCK_SUPPORTED 0x00000080 371 #define PCISLOT_66_MHZ_SUPPORTED 0x00000100 372 #define PCISLOT_64_BIT_SUPPORTED 0x00000200 373 374 #define PCI_TO_PCI_BRIDGE_CLASS 0x00060400 375 376 #define INTERLOCK_OPEN 0x00000002 377 #define ADD_NOT_SUPPORTED 0x00000003 378 #define CARD_FUNCTIONING 0x00000005 379 #define ADAPTER_NOT_SAME 0x00000006 380 #define NO_ADAPTER_PRESENT 0x00000009 381 #define NOT_ENOUGH_RESOURCES 0x0000000B 382 #define DEVICE_TYPE_NOT_SUPPORTED 0x0000000C 383 #define POWER_FAILURE 0x0000000E 384 385 #define REMOVE_NOT_SUPPORTED 0x00000003 386 387 388 /* 389 * error Messages 390 */ 391 #define msg_initialization_err "Initialization failure, error=%d\n" 392 #define msg_HPC_rev_error "Unsupported revision of the PCI hot plug controller found.\n" 393 #define msg_HPC_non_compaq_or_intel "The PCI hot plug controller is not supported by this driver.\n" 394 #define msg_HPC_not_supported "this system is not supported by this version of cpqphpd. Upgrade to a newer version of cpqphpd\n" 395 #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" 396 #define msg_button_on "PCI slot #%d - powering on due to button press.\n" 397 #define msg_button_off "PCI slot #%d - powering off due to button press.\n" 398 #define msg_button_cancel "PCI slot #%d - action canceled due to button press.\n" 399 #define msg_button_ignore "PCI slot #%d - button press ignored. (action in progress...)\n" 400 401 402 /* sysfs functions for the hotplug controller info */ 403 extern void cpqhp_create_ctrl_files (struct controller *ctrl); 404 405 /* controller functions */ 406 extern void cpqhp_pushbutton_thread (unsigned long event_pointer); 407 extern irqreturn_t cpqhp_ctrl_intr (int IRQ, void *data, struct pt_regs *regs); 408 extern int cpqhp_find_available_resources (struct controller *ctrl, void __iomem *rom_start); 409 extern int cpqhp_event_start_thread (void); 410 extern void cpqhp_event_stop_thread (void); 411 extern struct pci_func *cpqhp_slot_create (unsigned char busnumber); 412 extern struct pci_func *cpqhp_slot_find (unsigned char bus, unsigned char device, unsigned char index); 413 extern int cpqhp_process_SI (struct controller *ctrl, struct pci_func *func); 414 extern int cpqhp_process_SS (struct controller *ctrl, struct pci_func *func); 415 extern int cpqhp_hardware_test (struct controller *ctrl, int test_num); 416 417 /* resource functions */ 418 extern int cpqhp_resource_sort_and_combine (struct pci_resource **head); 419 420 /* pci functions */ 421 extern int cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num); 422 extern int cpqhp_get_bus_dev (struct controller *ctrl, u8 *bus_num, u8 *dev_num, u8 slot); 423 extern int cpqhp_save_config (struct controller *ctrl, int busnumber, int is_hot_plug); 424 extern int cpqhp_save_base_addr_length (struct controller *ctrl, struct pci_func * func); 425 extern int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func); 426 extern int cpqhp_configure_board (struct controller *ctrl, struct pci_func * func); 427 extern int cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot); 428 extern int cpqhp_valid_replace (struct controller *ctrl, struct pci_func * func); 429 extern void cpqhp_destroy_board_resources (struct pci_func * func); 430 extern int cpqhp_return_board_resources (struct pci_func * func, struct resource_lists * resources); 431 extern void cpqhp_destroy_resource_list (struct resource_lists * resources); 432 extern int cpqhp_configure_device (struct controller* ctrl, struct pci_func* func); 433 extern int cpqhp_unconfigure_device (struct pci_func* func); 434 435 /* Global variables */ 436 extern int cpqhp_debug; 437 extern int cpqhp_legacy_mode; 438 extern struct controller *cpqhp_ctrl_list; 439 extern struct pci_func *cpqhp_slot_list[256]; 440 441 /* these can be gotten rid of, but for debugging they are purty */ 442 extern u8 cpqhp_nic_irq; 443 extern u8 cpqhp_disk_irq; 444 445 446 /* inline functions */ 447 448 /* 449 * return_resource 450 * 451 * Puts node back in the resource list pointed to by head 452 * 453 */ 454 static inline void return_resource(struct pci_resource **head, struct pci_resource *node) 455 { 456 if (!node || !head) 457 return; 458 node->next = *head; 459 *head = node; 460 } 461 462 static inline void set_SOGO(struct controller *ctrl) 463 { 464 u16 misc; 465 466 misc = readw(ctrl->hpc_reg + MISC); 467 misc = (misc | 0x0001) & 0xFFFB; 468 writew(misc, ctrl->hpc_reg + MISC); 469 } 470 471 472 static inline void amber_LED_on(struct controller *ctrl, u8 slot) 473 { 474 u32 led_control; 475 476 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 477 led_control |= (0x01010000L << slot); 478 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 479 } 480 481 482 static inline void amber_LED_off(struct controller *ctrl, u8 slot) 483 { 484 u32 led_control; 485 486 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 487 led_control &= ~(0x01010000L << slot); 488 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 489 } 490 491 492 static inline int read_amber_LED(struct controller *ctrl, u8 slot) 493 { 494 u32 led_control; 495 496 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 497 led_control &= (0x01010000L << slot); 498 499 return led_control ? 1 : 0; 500 } 501 502 503 static inline void green_LED_on(struct controller *ctrl, u8 slot) 504 { 505 u32 led_control; 506 507 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 508 led_control |= 0x0101L << slot; 509 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 510 } 511 512 static inline void green_LED_off(struct controller *ctrl, u8 slot) 513 { 514 u32 led_control; 515 516 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 517 led_control &= ~(0x0101L << slot); 518 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 519 } 520 521 522 static inline void green_LED_blink(struct controller *ctrl, u8 slot) 523 { 524 u32 led_control; 525 526 led_control = readl(ctrl->hpc_reg + LED_CONTROL); 527 led_control &= ~(0x0101L << slot); 528 led_control |= (0x0001L << slot); 529 writel(led_control, ctrl->hpc_reg + LED_CONTROL); 530 } 531 532 533 static inline void slot_disable(struct controller *ctrl, u8 slot) 534 { 535 u8 slot_enable; 536 537 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 538 slot_enable &= ~(0x01 << slot); 539 writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE); 540 } 541 542 543 static inline void slot_enable(struct controller *ctrl, u8 slot) 544 { 545 u8 slot_enable; 546 547 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 548 slot_enable |= (0x01 << slot); 549 writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE); 550 } 551 552 553 static inline u8 is_slot_enabled(struct controller *ctrl, u8 slot) 554 { 555 u8 slot_enable; 556 557 slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE); 558 slot_enable &= (0x01 << slot); 559 return slot_enable ? 1 : 0; 560 } 561 562 563 static inline u8 read_slot_enable(struct controller *ctrl) 564 { 565 return readb(ctrl->hpc_reg + SLOT_ENABLE); 566 } 567 568 569 /* 570 * get_controller_speed - find the current frequency/mode of controller. 571 * 572 * @ctrl: controller to get frequency/mode for. 573 * 574 * Returns controller speed. 575 * 576 */ 577 static inline u8 get_controller_speed(struct controller *ctrl) 578 { 579 u8 curr_freq; 580 u16 misc; 581 582 if (ctrl->pcix_support) { 583 curr_freq = readb(ctrl->hpc_reg + NEXT_CURR_FREQ); 584 if ((curr_freq & 0xB0) == 0xB0) 585 return PCI_SPEED_133MHz_PCIX; 586 if ((curr_freq & 0xA0) == 0xA0) 587 return PCI_SPEED_100MHz_PCIX; 588 if ((curr_freq & 0x90) == 0x90) 589 return PCI_SPEED_66MHz_PCIX; 590 if (curr_freq & 0x10) 591 return PCI_SPEED_66MHz; 592 593 return PCI_SPEED_33MHz; 594 } 595 596 misc = readw(ctrl->hpc_reg + MISC); 597 return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz; 598 } 599 600 601 /* 602 * get_adapter_speed - find the max supported frequency/mode of adapter. 603 * 604 * @ctrl: hotplug controller. 605 * @hp_slot: hotplug slot where adapter is installed. 606 * 607 * Returns adapter speed. 608 * 609 */ 610 static inline u8 get_adapter_speed(struct controller *ctrl, u8 hp_slot) 611 { 612 u32 temp_dword = readl(ctrl->hpc_reg + NON_INT_INPUT); 613 dbg("slot: %d, PCIXCAP: %8x\n", hp_slot, temp_dword); 614 if (ctrl->pcix_support) { 615 if (temp_dword & (0x10000 << hp_slot)) 616 return PCI_SPEED_133MHz_PCIX; 617 if (temp_dword & (0x100 << hp_slot)) 618 return PCI_SPEED_66MHz_PCIX; 619 } 620 621 if (temp_dword & (0x01 << hp_slot)) 622 return PCI_SPEED_66MHz; 623 624 return PCI_SPEED_33MHz; 625 } 626 627 static inline void enable_slot_power(struct controller *ctrl, u8 slot) 628 { 629 u8 slot_power; 630 631 slot_power = readb(ctrl->hpc_reg + SLOT_POWER); 632 slot_power |= (0x01 << slot); 633 writeb(slot_power, ctrl->hpc_reg + SLOT_POWER); 634 } 635 636 static inline void disable_slot_power(struct controller *ctrl, u8 slot) 637 { 638 u8 slot_power; 639 640 slot_power = readb(ctrl->hpc_reg + SLOT_POWER); 641 slot_power &= ~(0x01 << slot); 642 writeb(slot_power, ctrl->hpc_reg + SLOT_POWER); 643 } 644 645 646 static inline int cpq_get_attention_status(struct controller *ctrl, struct slot *slot) 647 { 648 u8 hp_slot; 649 650 hp_slot = slot->device - ctrl->slot_device_offset; 651 652 return read_amber_LED(ctrl, hp_slot); 653 } 654 655 656 static inline int get_slot_enabled(struct controller *ctrl, struct slot *slot) 657 { 658 u8 hp_slot; 659 660 hp_slot = slot->device - ctrl->slot_device_offset; 661 662 return is_slot_enabled(ctrl, hp_slot); 663 } 664 665 666 static inline int cpq_get_latch_status(struct controller *ctrl, struct slot *slot) 667 { 668 u32 status; 669 u8 hp_slot; 670 671 hp_slot = slot->device - ctrl->slot_device_offset; 672 dbg("%s: slot->device = %d, ctrl->slot_device_offset = %d \n", 673 __FUNCTION__, slot->device, ctrl->slot_device_offset); 674 675 status = (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot)); 676 677 return(status == 0) ? 1 : 0; 678 } 679 680 681 static inline int get_presence_status(struct controller *ctrl, struct slot *slot) 682 { 683 int presence_save = 0; 684 u8 hp_slot; 685 u32 tempdword; 686 687 hp_slot = slot->device - ctrl->slot_device_offset; 688 689 tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR); 690 presence_save = (int) ((((~tempdword) >> 23) | ((~tempdword) >> 15)) >> hp_slot) & 0x02; 691 692 return presence_save; 693 } 694 695 #define SLOT_NAME_SIZE 10 696 697 static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot) 698 { 699 snprintf(buffer, buffer_size, "%d", slot->number); 700 } 701 702 703 static inline int wait_for_ctrl_irq(struct controller *ctrl) 704 { 705 DECLARE_WAITQUEUE(wait, current); 706 int retval = 0; 707 708 dbg("%s - start\n", __FUNCTION__); 709 add_wait_queue(&ctrl->queue, &wait); 710 /* Sleep for up to 1 second to wait for the LED to change. */ 711 msleep_interruptible(1000); 712 remove_wait_queue(&ctrl->queue, &wait); 713 if (signal_pending(current)) 714 retval = -EINTR; 715 716 dbg("%s - end\n", __FUNCTION__); 717 return retval; 718 } 719 720 #endif 721 722