source: GPL/trunk/include/linux/pci.h@ 479

Last change on this file since 479 was 479, checked in by David Azarewicz, 15 years ago

Cleanup compiler warnings
File size: 27.8 KB
Line 
1/*
2 * PCI defines and function prototypes
3 * Copyright 1994, Drew Eckhardt
4 * Copyright 1997--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
5 *
6 * For more information, please consult the following manuals (look at
7 * http://www.pcisig.com/ for how to get them):
8 *
9 * PCI BIOS Specification
10 * PCI Local Bus Specification
11 * PCI to PCI Bridge Specification
12 * PCI System Design Guide
13 */
14
15#ifndef LINUX_PCI_H
16#define LINUX_PCI_H
17
18#include <linux/types.h>
19#include <linux/list.h>
20#pragma pack(1) //!!! by vladest
21/*
22 * Under PCI, each device has 256 bytes of configuration address space,
23 * of which the first 64 bytes are standardized as follows:
24 */
25#define PCI_VENDOR_ID 0x00 /* 16 bits */
26#define PCI_DEVICE_ID 0x02 /* 16 bits */
27#define PCI_COMMAND 0x04 /* 16 bits */
28#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
29#define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */
30#define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */
31#define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */
32#define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */
33#define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */
34#define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */
35#define PCI_COMMAND_WAIT 0x80 /* Enable address/data stepping */
36#define PCI_COMMAND_SERR 0x100 /* Enable SERR */
37#define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */
38
39#define PCI_STATUS 0x06 /* 16 bits */
40#define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */
41#define PCI_STATUS_66MHZ 0x20 /* Support 66 Mhz PCI 2.1 bus */
42#define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */
43#define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */
44#define PCI_STATUS_PARITY 0x100 /* Detected parity error */
45#define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */
46#define PCI_STATUS_DEVSEL_FAST 0x000
47#define PCI_STATUS_DEVSEL_MEDIUM 0x200
48#define PCI_STATUS_DEVSEL_SLOW 0x400
49#define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */
50#define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */
51#define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */
52#define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */
53#define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */
54
55#define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8
56 revision */
57#define PCI_REVISION_ID 0x08 /* Revision ID */
58#define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */
59#define PCI_CLASS_DEVICE 0x0a /* Device class */
60
61#define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */
62#define PCI_LATENCY_TIMER 0x0d /* 8 bits */
63#define PCI_HEADER_TYPE 0x0e /* 8 bits */
64#define PCI_HEADER_TYPE_NORMAL 0
65#define PCI_HEADER_TYPE_BRIDGE 1
66#define PCI_HEADER_TYPE_CARDBUS 2
67
68#define PCI_BIST 0x0f /* 8 bits */
69#define PCI_BIST_CODE_MASK 0x0f /* Return result */
70#define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */
71#define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */
72
73/*
74 * Base addresses specify locations in memory or I/O space.
75 * Decoded size can be determined by writing a value of
76 * 0xffffffff to the register, and reading it back. Only
77 * 1 bits are decoded.
78 */
79#define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */
80#define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */
81#define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */
82#define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */
83#define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */
84#define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */
85#define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */
86#define PCI_BASE_ADDRESS_SPACE_IO 0x01
87#define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00
88#define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06
89#define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */
90#define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */
91#define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */
92#define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */
93#define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL)
94#define PCI_BASE_ADDRESS_IO_MASK (~0x03UL)
95/* bit 1 is reserved if address_space = 1 */
96
97/* Header type 0 (normal devices) */
98#define PCI_CARDBUS_CIS 0x28
99#define PCI_SUBSYSTEM_VENDOR_ID 0x2c
100#define PCI_SUBSYSTEM_ID 0x2e
101#define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */
102#define PCI_ROM_ADDRESS_ENABLE 0x01
103#define PCI_ROM_ADDRESS_MASK (~0x7ffUL)
104
105#define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
106
107/* 0x35-0x3b are reserved */
108#define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
109#define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
110#define PCI_MIN_GNT 0x3e /* 8 bits */
111#define PCI_MAX_LAT 0x3f /* 8 bits */
112
113/* Header type 1 (PCI-to-PCI bridges) */
114#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
115#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */
116#define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */
117#define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */
118#define PCI_IO_BASE 0x1c /* I/O range behind the bridge */
119#define PCI_IO_LIMIT 0x1d
120#define PCI_IO_RANGE_TYPE_MASK 0x0f /* I/O bridging type */
121#define PCI_IO_RANGE_TYPE_16 0x00
122#define PCI_IO_RANGE_TYPE_32 0x01
123#define PCI_IO_RANGE_MASK ~0x0f
124#define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */
125#define PCI_MEMORY_BASE 0x20 /* Memory range behind */
126#define PCI_MEMORY_LIMIT 0x22
127#define PCI_MEMORY_RANGE_TYPE_MASK 0x0f
128#define PCI_MEMORY_RANGE_MASK ~0x0f
129#define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
130#define PCI_PREF_MEMORY_LIMIT 0x26
131#define PCI_PREF_RANGE_TYPE_MASK 0x0f
132#define PCI_PREF_RANGE_TYPE_32 0x00
133#define PCI_PREF_RANGE_TYPE_64 0x01
134#define PCI_PREF_RANGE_MASK ~0x0f
135#define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
136#define PCI_PREF_LIMIT_UPPER32 0x2c
137#define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */
138#define PCI_IO_LIMIT_UPPER16 0x32
139/* 0x34 same as for htype 0 */
140/* 0x35-0x3b is reserved */
141#define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */
142/* 0x3c-0x3d are same as for htype 0 */
143#define PCI_BRIDGE_CONTROL 0x3e
144#define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */
145#define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */
146#define PCI_BRIDGE_CTL_NO_ISA 0x04 /* Disable bridging of ISA ports */
147#define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */
148#define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */
149#define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */
150#define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */
151
152/* Header type 2 (CardBus bridges) */
153/* 0x14-0x15 reserved */
154#define PCI_CB_CAPABILITY_LIST 0x14
155#define PCI_CB_SEC_STATUS 0x16 /* Secondary status */
156#define PCI_CB_PRIMARY_BUS 0x18 /* PCI bus number */
157#define PCI_CB_CARD_BUS 0x19 /* CardBus bus number */
158#define PCI_CB_SUBORDINATE_BUS 0x1a /* Subordinate bus number */
159#define PCI_CB_LATENCY_TIMER 0x1b /* CardBus latency timer */
160#define PCI_CB_MEMORY_BASE_0 0x1c
161#define PCI_CB_MEMORY_LIMIT_0 0x20
162#define PCI_CB_MEMORY_BASE_1 0x24
163#define PCI_CB_MEMORY_LIMIT_1 0x28
164#define PCI_CB_IO_BASE_0 0x2c
165#define PCI_CB_IO_BASE_0_HI 0x2e
166#define PCI_CB_IO_LIMIT_0 0x30
167#define PCI_CB_IO_LIMIT_0_HI 0x32
168#define PCI_CB_IO_BASE_1 0x34
169#define PCI_CB_IO_BASE_1_HI 0x36
170#define PCI_CB_IO_LIMIT_1 0x38
171#define PCI_CB_IO_LIMIT_1_HI 0x3a
172#define PCI_CB_IO_RANGE_MASK ~0x03
173/* 0x3c-0x3d are same as for htype 0 */
174#define PCI_CB_BRIDGE_CONTROL 0x3e
175#define PCI_CB_BRIDGE_CTL_PARITY 0x01 /* Similar to standard bridge control register */
176#define PCI_CB_BRIDGE_CTL_SERR 0x02
177#define PCI_CB_BRIDGE_CTL_ISA 0x04
178#define PCI_CB_BRIDGE_CTL_VGA 0x08
179#define PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20
180#define PCI_CB_BRIDGE_CTL_CB_RESET 0x40 /* CardBus reset */
181#define PCI_CB_BRIDGE_CTL_16BIT_INT 0x80 /* Enable interrupt for 16-bit cards */
182#define PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100 /* Prefetch enable for both memory regions */
183#define PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200
184#define PCI_CB_BRIDGE_CTL_POST_WRITES 0x400
185#define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40
186#define PCI_CB_SUBSYSTEM_ID 0x42
187#define PCI_CB_LEGACY_MODE_BASE 0x44 /* 16-bit PC Card legacy mode base address (ExCa) */
188/* 0x48-0x7f reserved */
189
190/* Capability lists */
191
192#define PCI_CAP_LIST_ID 0 /* Capability ID */
193#define PCI_CAP_ID_PM 0x01 /* Power Management */
194#define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */
195#define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */
196#define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */
197#define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */
198#define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */
199#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
200#define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */
201#define PCI_CAP_SIZEOF 4
202
203/* Power Management Registers */
204#define PCI_PM_PMC 2 /* PM Capabilities Register */
205#define PCI_PM_CAP_VER_MASK 0x0007 /* Version */
206#define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */
207#define PCI_PM_CAP_AUX_POWER 0x0010 /* Auxilliary power support */
208#define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */
209#define PCI_PM_CAP_D1 0x0200 /* D1 power state support */
210#define PCI_PM_CAP_D2 0x0400 /* D2 power state support */
211#define PCI_PM_CAP_PME 0x0800 /* PME pin supported */
212#define PCI_PM_CTRL 4 /* PM control and status register */
213#define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
214#define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
215#define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
216#define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
217#define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */
218#define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */
219#define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */
220#define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */
221#define PCI_PM_DATA_REGISTER 7 /* (??) */
222#define PCI_PM_SIZEOF 8
223
224/* AGP registers */
225
226#define PCI_AGP_VERSION 2 /* BCD version number */
227#define PCI_AGP_RFU 3 /* Rest of capability flags */
228#define PCI_AGP_STATUS 4 /* Status register */
229#define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */
230#define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */
231#define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */
232#define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */
233#define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */
234#define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */
235#define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */
236#define PCI_AGP_COMMAND 8 /* Control register */
237#define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */
238#define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */
239#define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */
240#define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */
241#define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */
242#define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */
243#define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 4x rate */
244#define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 4x rate */
245#define PCI_AGP_SIZEOF 12
246
247/* Slot Identification */
248
249#define PCI_SID_ESR 2 /* Expansion Slot Register */
250#define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */
251#define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */
252#define PCI_SID_CHASSIS_NR 3 /* Chassis Number */
253
254/* Message Signalled Interrupts registers */
255
256#define PCI_MSI_FLAGS 2 /* Various flags */
257#define PCI_MSI_FLAGS_64BIT 0x80 /* 64-bit addresses allowed */
258#define PCI_MSI_FLAGS_QSIZE 0x70 /* Message queue size configured */
259#define PCI_MSI_FLAGS_QMASK 0x0e /* Maximum queue size available */
260#define PCI_MSI_FLAGS_ENABLE 0x01 /* MSI feature enabled */
261#define PCI_MSI_RFU 3 /* Rest of capability flags */
262#define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */
263#define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
264#define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */
265#define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */
266
267/* Include the ID list */
268
269#include <linux/pci_ids.h>
270
271/*
272 * The PCI interface treats multi-function devices as independent
273 * devices. The slot/function address of each device is encoded
274 * in a single byte as follows:
275 *
276 * 7:3 = slot
277 * 2:0 = function
278 */
279#define PCI_DEVFN(slot,func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
280#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
281#define PCI_FUNC(devfn) ((devfn) & 0x07)
282
283#ifdef __KERNEL__
284
285#include <linux/types.h>
286#include <linux/ioport.h>
287
288#include <asm/pci.h>
289#define BUS_ID_SIZE 20
290#define DEVICE_COUNT_COMPATIBLE 4
291#define DEVICE_COUNT_IRQ 2
292#define DEVICE_COUNT_DMA 2
293#define DEVICE_COUNT_RESOURCE 12
294
295typedef struct pci_dev;
296
297#define PCI_D0 0
298#define PCI_D1 1
299#define PCI_D2 2
300#define PCI_D3hot 3
301#define PCI_D3cold 4
302#define pci_choose_state(pci,state) ((state) ? PCI_D3hot : PCI_D0)
303
304typedef struct device {
305 struct pci_dev *pci; /* for PCI and PCI-SG types */
306 struct device * parent;
307 struct bus_type * bus; /* type of bus device is on */
308 char bus_id[BUS_ID_SIZE]; /* position on parent bus */
309 void (*release)(struct device * dev);
310 unsigned int flags; /* GFP_XXX for continous and ISA types */
311#ifdef CONFIG_SBUS
312 struct sbus_dev *sbus; /* for SBUS type */
313#endif
314 void *private_data;
315 void *platform_data;
316
317 struct device_driver *driver;
318 struct pm_dev *pm_dev;
319 char bus_id[20];
320} device;
321
322/*
323 * The pci_dev structure is used to describe both PCI and ISAPnP devices.
324 */
325struct pci_dev {
326 int active; /* device is active */
327 int ro; /* Read/Only */
328
329 struct pci_bus *bus; /* bus this device is on */
330 struct pci_dev *sibling; /* next device on this bus */
331 struct pci_dev *next; /* chain of all devices */
332
333 void *sysdata; /* hook for sys-specific extension */
334 struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */
335
336 struct device dev;
337
338 unsigned int devfn; /* encoded device & function index */
339 unsigned short vendor;
340 unsigned short device;
341 unsigned short subsystem_vendor;
342 unsigned short subsystem_device;
343 unsigned int _class; /* 3 bytes: (base,sub,prog-if) */
344 u8 hdr_type; /* PCI header type (`multi' flag masked out) */
345 u8 rom_base_reg; /* Which config register controls the ROM */
346
347 unsigned short regs;
348
349 u32 current_state; /* Current operating state. In ACPI-speak,
350 this is D0-D3, D0 being fully functional,
351 and D3 being off. */
352
353 /* device is compatible with these IDs */
354 unsigned short vendor_compatible[DEVICE_COUNT_COMPATIBLE];
355 unsigned short device_compatible[DEVICE_COUNT_COMPATIBLE];
356
357 /*
358 * Instead of touching interrupt line and base address registers
359 * directly, use the values stored here. They might be different!
360 */
361 unsigned int irq;
362 struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */
363 struct resource dma_resource[DEVICE_COUNT_DMA];
364 struct resource irq_resource[DEVICE_COUNT_IRQ];
365
366 char name[48]; /* Device name */
367 char slot_name[8]; /* Slot name */
368
369 void *driver_data;
370 unsigned long dma_mask;
371
372 int (*prepare)(struct pci_dev *dev);
373 int (*activate)(struct pci_dev *dev);
374 int (*deactivate)(struct pci_dev *dev);
375#ifdef TARGET_OS2
376 void *pcidriver;
377#endif
378};
379
380/*
381 * For PCI devices, the region numbers are assigned this way:
382 *
383 * 0-5 standard PCI regions
384 * 6 expansion ROM
385 * 7-10 bridges: address space assigned to buses behind the bridge
386 */
387
388#define PCI_ROM_RESOURCE 6
389#define PCI_BRIDGE_RESOURCES 7
390#define PCI_NUM_RESOURCES 11
391
392#define PCI_REGION_FLAG_MASK 0x0f /* These bits of resource flags tell us the PCI region flags */
393
394struct pci_bus {
395 struct pci_bus *parent; /* parent bus this bridge is on */
396 struct pci_bus *children; /* chain of P2P bridges on this bus */
397 struct pci_bus *next; /* chain of all PCI buses */
398 struct pci_ops *ops; /* configuration access functions */
399
400 struct pci_dev *self; /* bridge device as seen by parent */
401 struct pci_dev *devices; /* devices behind this bridge */
402 struct resource *resource[4]; /* address space routed to this bus */
403
404 void *sysdata; /* hook for sys-specific extension */
405 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */
406
407 unsigned char number; /* bus number */
408 unsigned char primary; /* number of primary bridge */
409 unsigned char secondary; /* number of secondary bridge */
410 unsigned char subordinate; /* max number of subordinate buses */
411
412 char name[48];
413 unsigned short vendor;
414 unsigned short device;
415 unsigned int serial; /* serial number */
416 unsigned char pnpver; /* Plug & Play version */
417 unsigned char productver; /* product version */
418 unsigned char checksum; /* if zero - checksum passed */
419 unsigned char pad1;
420};
421
422//extern struct pci_bus *pci_root; /* root bus */
423//extern struct pci_dev *pci_devices; /* list of all devices */
424
425/*
426 * Error values that may be returned by PCI functions.
427 */
428#define PCIBIOS_SUCCESSFUL 0x00
429#define PCIBIOS_FUNC_NOT_SUPPORTED 0x81
430#define PCIBIOS_BAD_VENDOR_ID 0x83
431#define PCIBIOS_DEVICE_NOT_FOUND 0x86
432#define PCIBIOS_BAD_REGISTER_NUMBER 0x87
433#define PCIBIOS_SET_FAILED 0x88
434#define PCIBIOS_BUFFER_TOO_SMALL 0x89
435
436/* Low-level architecture-dependent routines */
437
438struct pci_ops {
439 int (*read_byte)(struct pci_dev *, int where, u8 *val);
440 int (*read_word)(struct pci_dev *, int where, u16 *val);
441 int (*read_dword)(struct pci_dev *, int where, u32 *val);
442 int (*write_byte)(struct pci_dev *, int where, u8 val);
443 int (*write_word)(struct pci_dev *, int where, u16 val);
444 int (*write_dword)(struct pci_dev *, int where, u32 val);
445};
446
447void pcibios_init(void);
448void pcibios_fixup_bus(struct pci_bus *);
449int pcibios_enable_device(struct pci_dev *);
450char *pcibios_setup (char *str);
451
452void pcibios_update_resource(struct pci_dev *, struct resource *,
453 struct resource *, int);
454void pcibios_update_irq(struct pci_dev *, int irq);
455
456/* Backward compatibility, don't use in new code! */
457
458int pcibios_present(void);
459#define pci_present pcibios_present
460int pcibios_read_config_byte (unsigned char bus, unsigned char dev_fn,
461 unsigned char where, unsigned char *val);
462int pcibios_read_config_word (unsigned char bus, unsigned char dev_fn,
463 unsigned char where, unsigned short *val);
464int pcibios_read_config_dword (unsigned char bus, unsigned char dev_fn,
465 unsigned char where, unsigned int *val);
466int pcibios_write_config_byte (unsigned char bus, unsigned char dev_fn,
467 unsigned char where, unsigned char val);
468int pcibios_write_config_word (unsigned char bus, unsigned char dev_fn,
469 unsigned char where, unsigned short val);
470int pcibios_write_config_dword (unsigned char bus, unsigned char dev_fn,
471 unsigned char where, unsigned int val);
472int pcibios_find_class (unsigned int class_code, unsigned short index, unsigned char *bus, unsigned char *dev_fn);
473int pcibios_find_device (unsigned short vendor, unsigned short dev_id,
474 unsigned short index, unsigned char *bus,
475 unsigned char *dev_fn);
476
477/* Generic PCI interface functions */
478
479void pci_init(void);
480struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata);
481int pci_proc_attach_device(struct pci_dev *dev);
482int pci_proc_detach_device(struct pci_dev *dev);
483void pci_name_device(struct pci_dev *dev);
484void pci_read_bridge_bases(struct pci_bus *child);
485struct resource *pci_find_parent_resource(struct pci_dev *dev, struct resource *res);
486
487struct pci_dev *pci_find_device (unsigned int vendor, unsigned int device, struct pci_dev *from);
488struct pci_dev *pci_find_subsys (unsigned int vendor, unsigned int device,
489 unsigned int ss_vendor, unsigned int ss_device,
490 struct pci_dev *from);
491struct pci_dev *pci_find_class (unsigned int _class, struct pci_dev *from);
492struct pci_dev *pci_find_slot (unsigned int bus, unsigned int devfn);
493int pci_find_capability (struct pci_dev *dev, int cap);
494int pci_dma_supported(struct pci_dev *dev, unsigned long mask);
495
496#define PCI_ANY_ID (~0)
497
498int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val);
499int pci_read_config_word(struct pci_dev *dev, int where, u16 *val);
500int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val);
501int pci_write_config_byte(struct pci_dev *dev, int where, u8 val);
502int pci_write_config_word(struct pci_dev *dev, int where, u16 val);
503int pci_write_config_dword(struct pci_dev *dev, int where, u32 val);
504int pci_enable_device(struct pci_dev *dev);
505void pci_set_master(struct pci_dev *dev);
506int pci_set_power_state(struct pci_dev *dev, int state);
507
508/* Helper functions for low-level code (drivers/pci/setup.c) */
509
510int pci_claim_resource(struct pci_dev *, int);
511void pci_assign_unassigned_resources(u32 min_io, u32 min_mem);
512void pci_set_bus_ranges(void);
513void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
514 int (*)(struct pci_dev *, u8, u8));
515
516/*
517 * simple PCI probing for drivers (drivers/pci/helper.c)
518 */
519
520struct pci_simple_probe_entry;
521typedef int (*pci_simple_probe_callback) (struct pci_dev *dev, int match_num,
522 const struct pci_simple_probe_entry *ent,
523 void *drvr_data);
524
525struct pci_simple_probe_entry {
526 unsigned short vendor; /* vendor id, PCI_ANY_ID, or 0 for last entry */
527 unsigned short device; /* device id, PCI_ANY_ID, or 0 for last entry */
528 unsigned short subsys_vendor; /* subsystem vendor id, 0 for don't care */
529 unsigned short subsys_device; /* subsystem device id, 0 for don't care */
530 void *dev_data; /* driver-private, entry-specific data */
531};
532
533int pci_simple_probe (const struct pci_simple_probe_entry *list,
534 size_t match_limit, pci_simple_probe_callback cb,
535 void *drvr_data);
536
537
538
539/*
540 * If the system does not have PCI, clearly these return errors. Define
541 * these as simple inline functions to avoid hair in drivers.
542 */
543
544/*
545 * The world is not perfect and supplies us with broken PCI devices.
546 * For at least a part of these bugs we need a work-around, so both
547 * generic (drivers/pci/quirks.c) and per-architecture code can define
548 * fixup hooks to be called for particular buggy devices.
549 */
550
551struct pci_fixup {
552 int pass;
553 u16 vendor, device; /* You can use PCI_ANY_ID here of course */
554 void (*hook)(struct pci_dev *dev);
555};
556
557extern struct pci_fixup pcibios_fixups[];
558
559#define PCI_FIXUP_HEADER 1 /* Called immediately after reading configuration header */
560#define PCI_FIXUP_FINAL 2 /* Final phase of device fixups */
561
562void pci_fixup_device(int pass, struct pci_dev *dev);
563
564extern int pci_pci_problems;
565#define PCIPCI_FAIL 1
566#define PCIPCI_TRITON 2
567#define PCIPCI_NATOMA 4
568
569
570struct pci_device_id {
571 unsigned int vendor, device;
572 unsigned int subvendor, subdevice;
573 unsigned int class, class_mask;
574 unsigned long driver_data;
575};
576#if 0
577struct pci_driver {
578 struct list_head node;
579 char *name;
580 const struct pci_device_id *id_table;
581 int (*probe)(struct pci_dev *dev, const struct pci_device_id *id);
582 void (*remove)(struct pci_dev *dev);
583 void (*suspend)(struct pci_dev *dev, u32 state);
584 void (*resume)(struct pci_dev *dev);
585};
586#else
587struct pci_driver {
588 struct list_head node;
589 struct pci_dev *dev;
590 char *name;
591 const struct pci_device_id *id_table; /* NULL if wants all devices */
592 int (*probe)(struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */
593 void (*remove)(struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */
594 int (*suspend)(struct pci_dev *dev, u32 stgate); /* Device suspended */
595 int (*resume)(struct pci_dev *dev); /* Device woken up */
596};
597#endif
598
599/*
600 * Device identifier
601 */
602#define PM_PCI_ID(dev) ((dev)->bus->number << 16 | (dev)->devfn)
603
604#define PCI_GET_DRIVER_DATA pci_get_driver_data
605#define PCI_SET_DRIVER_DATA pci_set_driver_data
606
607int pci_register_driver(struct pci_driver *driver);
608int pci_module_init(struct pci_driver *drv);
609
610int pci_unregister_driver(struct pci_driver *driver);
611
612
613#define pci_dev_g(n) list_entry(n, struct pci_dev, global_list)
614#define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list)
615
616#define pci_for_each_dev(dev) \
617 for(dev = pci_devices; dev; dev = dev->next)
618
619#define pci_resource_start(dev,bar) \
620 (((dev)->resource[(bar)].flags & PCI_BASE_ADDRESS_SPACE) ? \
621 ((dev)->resource[(bar)].start & PCI_BASE_ADDRESS_IO_MASK) : \
622 ((dev)->resource[(bar)].start & PCI_BASE_ADDRESS_MEM_MASK))
623
624#define pci_resource_end(dev,bar) \
625 (((dev)->resource[(bar)].flags & PCI_BASE_ADDRESS_SPACE) ? \
626 ((dev)->resource[(bar)].end & PCI_BASE_ADDRESS_IO_MASK) : \
627 ((dev)->resource[(bar)].end & PCI_BASE_ADDRESS_MEM_MASK))
628
629/*
630 #define pci_resource_end(dev,bar) ((dev)->resource[(bar)].end)
631 */
632#define pci_resource_flags(dev,bar) ((dev)->resource[(bar)].flags)
633
634#define pci_resource_len(dev,bar) \
635 ((pci_resource_start((dev),(bar)) == 0 && \
636 pci_resource_end((dev),(bar)) == \
637 pci_resource_start((dev),(bar))) ? 0 : \
638 \
639 (pci_resource_end((dev),(bar)) - \
640 pci_resource_start((dev),(bar))))
641
642extern struct pci_dev pci_devices[];
643extern struct pci_bus pci_busses[];
644
645/*
646 *
647 */
648const struct pci_device_id *pci_match_device(const struct pci_device_id *ids, struct pci_dev *dev);
649unsigned long pci_get_size (struct pci_dev *dev, int n_base);
650
651int pci_get_flags (struct pci_dev *dev, int n_base);
652int pci_set_power_state(struct pci_dev *dev, int new_state);
653int pci_enable_device(struct pci_dev *dev);
654int pci_find_capability(struct pci_dev *dev, int cap);
655
656void *pci_alloc_consistent(struct pci_dev *, long, dma_addr_t *);
657void pci_free_consistent(struct pci_dev *, long, void *, dma_addr_t);
658
659int pci_dma_supported(struct pci_dev *, dma_addr_t mask);
660void pci_release_regions(struct pci_dev *pdev);
661int pci_request_regions(struct pci_dev *pdev, char *res_name);
662
663void pci_disable_device(struct pci_dev *dev);
664
665int pci_save_state(struct pci_dev *dev);
666int pci_restore_state(struct pci_dev *dev);
667
668unsigned long pci_get_dma_mask(struct pci_dev *);
669#define pci_set_dma_mask(pci, mask) (pci->dma_mask = mask, 0)
670
671void *pci_get_driver_data (struct pci_dev *dev);
672void pci_set_driver_data (struct pci_dev *dev, void *driver_data);
673
674#define pci_get_drvdata(a) pci_get_driver_data(a)
675#define pci_set_drvdata(a,b) pci_set_driver_data(a, b)
676
677#define PCI_DEVICE(vend,dev) \
678 .vendor = (vend), .device = (dev), \
679 .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
680
681#define pci_get_device pci_find_device
682#define pci_dev_put(x)
683
684#pragma pack() //!!! by vladest
685
686#endif /* __KERNEL__ */
687
688static inline unsigned char snd_pci_revision(struct pci_dev *pci)
689{
690 unsigned char rev;
691 pci_read_config_byte(pci, PCI_REVISION_ID, &rev);
692 return rev;
693}
694
695/* pci_intx() wrapper */
696#define pci_intx(pci,x)
697
698/* MSI */
699static inline int snd_pci_enable_msi(struct pci_dev *dev) { return -1; }
700#undef pci_enable_msi
701#define pci_enable_msi(dev) snd_pci_enable_msi(dev)
702#undef pci_disable_msi
703#define pci_disable_msi(dev)
704#define pci_dev_present(x) snd_pci_dev_present(x)
705extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
706static inline void *pci_ioremap_bar(struct pci_dev *pdev, int bar)
707{
708 return __ioremap(pci_resource_start(pdev, bar),
709 pci_resource_len(pdev, bar),0x010);
710}
711
712#define PCI_VDEVICE(vendor, device) \
713 PCI_VENDOR_ID_##vendor, (device), \
714 PCI_ANY_ID, PCI_ANY_ID, 0, 0
715
716#endif /* LINUX_PCI_H */
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