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source: vbox/trunk/src/VBox/Devices/PC/Etherboot-src/include/pci.h@ 20295

最後變更 在這個檔案從20295是 11982,由 vboxsync 提交於 16 年 前

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1#ifndef PCI_H
2#define PCI_H
3
4/*
5** Support for NE2000 PCI clones added David Monro June 1997
6** Generalised for other PCI NICs by Ken Yap July 1997
7**
8** Most of this is taken from:
9**
10** /usr/src/linux/drivers/pci/pci.c
11** /usr/src/linux/include/linux/pci.h
12** /usr/src/linux/arch/i386/bios32.c
13** /usr/src/linux/include/linux/bios32.h
14** /usr/src/linux/drivers/net/ne.c
15*/
16
17/*
18 * This program is free software; you can redistribute it and/or
19 * modify it under the terms of the GNU General Public License as
20 * published by the Free Software Foundation; either version 2, or (at
21 * your option) any later version.
22 */
23
24/*
25 * Sun GPL Disclaimer: For the avoidance of doubt, except that if any license choice
26 * other than GPL or LGPL is available it will apply instead, Sun elects to use only
27 * the General Public License version 2 (GPLv2) at this time for any software where
28 * a choice of GPL license versions is made available with the language indicating
29 * that GPLv2 or any later version may be used, or where a choice of which version
30 * of the GPL is applied is otherwise unspecified.
31 */
32
33#include "pci_ids.h"
34
35#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
36#define PCI_COMMAND_MEM 0x2 /* Enable response in mem space */
37#define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */
38#define PCI_LATENCY_TIMER 0x0d /* 8 bits */
39#define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */
40#define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */
41#define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */
42#define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */
43#define PCI_COMMAND_WAIT 0x80 /* Enable address/data stepping */
44#define PCI_COMMAND_SERR 0x100 /* Enable SERR */
45#define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */
46
47#define PCIBIOS_PCI_FUNCTION_ID 0xb1XX
48#define PCIBIOS_PCI_BIOS_PRESENT 0xb101
49#define PCIBIOS_FIND_PCI_DEVICE 0xb102
50#define PCIBIOS_FIND_PCI_CLASS_CODE 0xb103
51#define PCIBIOS_GENERATE_SPECIAL_CYCLE 0xb106
52#define PCIBIOS_READ_CONFIG_BYTE 0xb108
53#define PCIBIOS_READ_CONFIG_WORD 0xb109
54#define PCIBIOS_READ_CONFIG_DWORD 0xb10a
55#define PCIBIOS_WRITE_CONFIG_BYTE 0xb10b
56#define PCIBIOS_WRITE_CONFIG_WORD 0xb10c
57#define PCIBIOS_WRITE_CONFIG_DWORD 0xb10d
58
59#define PCI_VENDOR_ID 0x00 /* 16 bits */
60#define PCI_DEVICE_ID 0x02 /* 16 bits */
61#define PCI_COMMAND 0x04 /* 16 bits */
62
63#define PCI_STATUS 0x06 /* 16 bits */
64#define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */
65#define PCI_STATUS_66MHZ 0x20 /* Support 66 Mhz PCI 2.1 bus */
66#define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */
67#define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */
68#define PCI_STATUS_PARITY 0x100 /* Detected parity error */
69#define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */
70#define PCI_STATUS_DEVSEL_FAST 0x000
71#define PCI_STATUS_DEVSEL_MEDIUM 0x200
72#define PCI_STATUS_DEVSEL_SLOW 0x400
73#define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */
74#define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */
75#define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */
76#define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */
77#define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */
78
79#define PCI_REVISION 0x08 /* 8 bits */
80#define PCI_REVISION_ID 0x08 /* 8 bits */
81#define PCI_CLASS_REVISION 0x08 /* 32 bits */
82#define PCI_CLASS_CODE 0x0b /* 8 bits */
83#define PCI_SUBCLASS_CODE 0x0a /* 8 bits */
84#define PCI_HEADER_TYPE 0x0e /* 8 bits */
85#define PCI_HEADER_TYPE_NORMAL 0
86#define PCI_HEADER_TYPE_BRIDGE 1
87#define PCI_HEADER_TYPE_CARDBUS 2
88
89
90/* Header type 0 (normal devices) */
91#define PCI_CARDBUS_CIS 0x28
92#define PCI_SUBSYSTEM_VENDOR_ID 0x2c
93#define PCI_SUBSYSTEM_ID 0x2e
94
95#define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */
96#define PCI_BASE_ADDRESS_1 0x14 /* 32 bits */
97#define PCI_BASE_ADDRESS_2 0x18 /* 32 bits */
98#define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */
99#define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */
100#define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */
101
102#define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06
103#define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */
104#define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */
105#define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */
106
107#ifndef PCI_BASE_ADDRESS_IO_MASK
108#define PCI_BASE_ADDRESS_IO_MASK (~0x03)
109#endif
110#ifndef PCI_BASE_ADDRESS_MEM_MASK
111#define PCI_BASE_ADDRESS_MEM_MASK (~0x0f)
112#endif
113#define PCI_BASE_ADDRESS_SPACE_IO 0x01
114#define PCI_ROM_ADDRESS 0x30 /* 32 bits */
115#define PCI_ROM_ADDRESS_ENABLE 0x01 /* Write 1 to enable ROM,
116 bits 31..11 are address,
117 10..2 are reserved */
118
119#define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
120
121#define PCI_INTERRUPT_LINE 0x3c /* IRQ number (0-15) */
122#define PCI_INTERRUPT_PIN 0x3d /* IRQ pin on PCI bus (A-D) */
123
124/* Header type 1 (PCI-to-PCI bridges) */
125#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
126#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */
127#define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */
128#define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */
129#define PCI_IO_BASE 0x1c /* I/O range behind the bridge */
130#define PCI_IO_LIMIT 0x1d
131#define PCI_IO_RANGE_TYPE_MASK 0x0f /* I/O bridging type */
132#define PCI_IO_RANGE_TYPE_16 0x00
133#define PCI_IO_RANGE_TYPE_32 0x01
134#define PCI_IO_RANGE_MASK ~0x0f
135#define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */
136#define PCI_MEMORY_BASE 0x20 /* Memory range behind */
137#define PCI_MEMORY_LIMIT 0x22
138#define PCI_MEMORY_RANGE_TYPE_MASK 0x0f
139#define PCI_MEMORY_RANGE_MASK ~0x0f
140#define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
141#define PCI_PREF_MEMORY_LIMIT 0x26
142#define PCI_PREF_RANGE_TYPE_MASK 0x0f
143#define PCI_PREF_RANGE_TYPE_32 0x00
144#define PCI_PREF_RANGE_TYPE_64 0x01
145#define PCI_PREF_RANGE_MASK ~0x0f
146#define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
147#define PCI_PREF_LIMIT_UPPER32 0x2c
148#define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */
149#define PCI_IO_LIMIT_UPPER16 0x32
150/* 0x34 same as for htype 0 */
151/* 0x35-0x3b is reserved */
152#define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */
153/* 0x3c-0x3d are same as for htype 0 */
154#define PCI_BRIDGE_CONTROL 0x3e
155#define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */
156#define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */
157#define PCI_BRIDGE_CTL_NO_ISA 0x04 /* Disable bridging of ISA ports */
158#define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */
159#define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */
160#define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */
161#define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */
162
163#define PCI_CB_CAPABILITY_LIST 0x14
164
165/* Capability lists */
166
167#define PCI_CAP_LIST_ID 0 /* Capability ID */
168#define PCI_CAP_ID_PM 0x01 /* Power Management */
169#define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */
170#define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */
171#define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */
172#define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */
173#define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */
174#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
175#define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */
176#define PCI_CAP_SIZEOF 4
177
178/* Power Management Registers */
179
180#define PCI_PM_PMC 2 /* PM Capabilities Register */
181#define PCI_PM_CAP_VER_MASK 0x0007 /* Version */
182#define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */
183#define PCI_PM_CAP_RESERVED 0x0010 /* Reserved field */
184#define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */
185#define PCI_PM_CAP_AUX_POWER 0x01C0 /* Auxilliary power support mask */
186#define PCI_PM_CAP_D1 0x0200 /* D1 power state support */
187#define PCI_PM_CAP_D2 0x0400 /* D2 power state support */
188#define PCI_PM_CAP_PME 0x0800 /* PME pin supported */
189#define PCI_PM_CAP_PME_MASK 0xF800 /* PME Mask of all supported states */
190#define PCI_PM_CAP_PME_D0 0x0800 /* PME# from D0 */
191#define PCI_PM_CAP_PME_D1 0x1000 /* PME# from D1 */
192#define PCI_PM_CAP_PME_D2 0x2000 /* PME# from D2 */
193#define PCI_PM_CAP_PME_D3 0x4000 /* PME# from D3 (hot) */
194#define PCI_PM_CAP_PME_D3cold 0x8000 /* PME# from D3 (cold) */
195#define PCI_PM_CTRL 4 /* PM control and status register */
196#define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
197#define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
198#define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
199#define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
200#define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */
201#define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */
202#define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */
203#define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */
204#define PCI_PM_DATA_REGISTER 7 /* (??) */
205#define PCI_PM_SIZEOF 8
206
207/* AGP registers */
208
209#define PCI_AGP_VERSION 2 /* BCD version number */
210#define PCI_AGP_RFU 3 /* Rest of capability flags */
211#define PCI_AGP_STATUS 4 /* Status register */
212#define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */
213#define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */
214#define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */
215#define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */
216#define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */
217#define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */
218#define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */
219#define PCI_AGP_COMMAND 8 /* Control register */
220#define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */
221#define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */
222#define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */
223#define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */
224#define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */
225#define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */
226#define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 2x rate */
227#define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 1x rate */
228#define PCI_AGP_SIZEOF 12
229
230/* Slot Identification */
231
232#define PCI_SID_ESR 2 /* Expansion Slot Register */
233#define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */
234#define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */
235#define PCI_SID_CHASSIS_NR 3 /* Chassis Number */
236
237/* Message Signalled Interrupts registers */
238
239#define PCI_MSI_FLAGS 2 /* Various flags */
240#define PCI_MSI_FLAGS_64BIT 0x80 /* 64-bit addresses allowed */
241#define PCI_MSI_FLAGS_QSIZE 0x70 /* Message queue size configured */
242#define PCI_MSI_FLAGS_QMASK 0x0e /* Maximum queue size available */
243#define PCI_MSI_FLAGS_ENABLE 0x01 /* MSI feature enabled */
244#define PCI_MSI_RFU 3 /* Rest of capability flags */
245#define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */
246#define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
247#define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */
248#define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */
249
250#define PCI_SLOT(devfn) ((devfn) >> 3)
251#define PCI_FUNC(devfn) ((devfn) & 0x07)
252
253#define BIOS32_SIGNATURE (('_' << 0) + ('3' << 8) + ('2' << 16) + ('_' << 24))
254
255/* PCI signature: "PCI " */
256#define PCI_SIGNATURE (('P' << 0) + ('C' << 8) + ('I' << 16) + (' ' << 24))
257
258/* PCI service signature: "$PCI" */
259#define PCI_SERVICE (('$' << 0) + ('P' << 8) + ('C' << 16) + ('I' << 24))
260
261union bios32 {
262 struct {
263 unsigned long signature; /* _32_ */
264 unsigned long entry; /* 32 bit physical address */
265 unsigned char revision; /* Revision level, 0 */
266 unsigned char length; /* Length in paragraphs should be 01 */
267 unsigned char checksum; /* All bytes must add up to zero */
268 unsigned char reserved[5]; /* Must be zero */
269 } fields;
270 char chars[16];
271};
272
273struct pci_device;
274struct dev;
275typedef int (*pci_probe_t)(struct dev *, struct pci_device *);
276
277struct pci_device {
278 uint32_t class;
279 uint16_t vendor, dev_id;
280 const char *name;
281 /* membase and ioaddr are silly and depricated */
282 unsigned int membase;
283 unsigned int ioaddr;
284 unsigned int romaddr;
285 unsigned char irq;
286 unsigned char devfn;
287 unsigned char bus;
288 unsigned char use_specified;
289 const struct pci_driver *driver;
290};
291
292extern void scan_pci_bus(int type, struct pci_device *dev);
293extern void find_pci(int type, struct pci_device *dev);
294
295extern int pcibios_read_config_byte(unsigned int bus, unsigned int device_fn, unsigned int where, uint8_t *value);
296extern int pcibios_write_config_byte (unsigned int bus, unsigned int device_fn, unsigned int where, uint8_t value);
297extern int pcibios_read_config_word(unsigned int bus, unsigned int device_fn, unsigned int where, uint16_t *value);
298extern int pcibios_write_config_word (unsigned int bus, unsigned int device_fn, unsigned int where, uint16_t value);
299extern int pcibios_read_config_dword(unsigned int bus, unsigned int device_fn, unsigned int where, uint32_t *value);
300extern int pcibios_write_config_dword(unsigned int bus, unsigned int device_fn, unsigned int where, uint32_t value);
301extern unsigned long pcibios_bus_base(unsigned int bus);
302extern void adjust_pci_device(struct pci_device *p);
303
304
305static inline int
306pci_read_config_byte(struct pci_device *dev, unsigned int where, uint8_t *value)
307{
308 return pcibios_read_config_byte(dev->bus, dev->devfn, where, value);
309}
310static inline int
311pci_write_config_byte(struct pci_device *dev, unsigned int where, uint8_t value)
312{
313 return pcibios_write_config_byte(dev->bus, dev->devfn, where, value);
314}
315static inline int
316pci_read_config_word(struct pci_device *dev, unsigned int where, uint16_t *value)
317{
318 return pcibios_read_config_word(dev->bus, dev->devfn, where, value);
319}
320static inline int
321pci_write_config_word(struct pci_device *dev, unsigned int where, uint16_t value)
322{
323 return pcibios_write_config_word(dev->bus, dev->devfn, where, value);
324}
325static inline int
326pci_read_config_dword(struct pci_device *dev, unsigned int where, uint32_t *value)
327{
328 return pcibios_read_config_dword(dev->bus, dev->devfn, where, value);
329}
330static inline int
331pci_write_config_dword(struct pci_device *dev, unsigned int where, uint32_t value)
332{
333 return pcibios_write_config_dword(dev->bus, dev->devfn, where, value);
334}
335
336/* Helper functions to find the size of a pci bar */
337extern unsigned long pci_bar_start(struct pci_device *dev, unsigned int bar);
338extern unsigned long pci_bar_size(struct pci_device *dev, unsigned int bar);
339/* Helper function to find pci capabilities */
340extern int pci_find_capability(struct pci_device *dev, int cap);
341struct pci_id {
342 unsigned short vendor, dev_id;
343 const char *name;
344};
345
346struct dev;
347/* Most pci drivers will use this */
348struct pci_driver {
349 int type;
350 const char *name;
351 pci_probe_t probe;
352 struct pci_id *ids;
353 int id_count;
354
355/* On a few occasions the hardware is standardized enough that
356 * we only need to know the class of the device and not the exact
357 * type to drive the device correctly. If this is the case
358 * set a class value other than 0.
359 */
360 unsigned short class;
361};
362
363#define __pci_driver __attribute__ ((used,__section__(".drivers.pci")))
364/* Defined by the linker... */
365extern const struct pci_driver pci_drivers[];
366extern const struct pci_driver pci_drivers_end[];
367
368#define PCI_ROM(VENDOR_ID, DEVICE_ID, IMAGE, DESCRIPTION) \
369 { VENDOR_ID, DEVICE_ID, IMAGE, }
370
371#endif /* PCI_H */
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