56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
|
#include "pci.h"
|
||
|
|
|
||
|
|
typedef unsigned long pciaddr_t;
|
||
|
|
typedef u8 byte;
|
||
|
|
typedef u16 word;
|
||
|
|
|
||
|
|
struct pci_dev {
|
||
|
|
struct pci_dev *next; /* Next device in the chain */
|
||
|
|
word bus; /* Higher byte can select host bridges */
|
||
|
|
byte dev, func; /* Device and function */
|
||
|
|
|
||
|
|
/* These fields are set by pci_fill_info() */
|
||
|
|
int known_fields; /* Set of info fields already known */
|
||
|
|
word vendor_id, device_id; /* Identity of the device */
|
||
|
|
int irq; /* IRQ number */
|
||
|
|
pciaddr_t base_addr[6]; /* Base addresses */
|
||
|
|
pciaddr_t size[6]; /* Region sizes */
|
||
|
|
pciaddr_t rom_base_addr; /* Expansion ROM base address */
|
||
|
|
pciaddr_t rom_size; /* Expansion ROM size */
|
||
|
|
|
||
|
|
/* Fields used internally: */
|
||
|
|
void *access;
|
||
|
|
void *methods;
|
||
|
|
byte *cache; /* Cached information */
|
||
|
|
int cache_len;
|
||
|
|
int hdrtype; /* Direct methods: header type */
|
||
|
|
void *aux; /* Auxillary data */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct pci_filter {
|
||
|
|
int bus, slot, func; /* -1 = ANY */
|
||
|
|
int vendor, device;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#define PCITAG struct pci_filter *
|
||
|
|
#define pciVideoPtr struct pci_dev *
|
||
|
|
|
||
|
|
extern int pciNumBuses;
|
||
|
|
|
||
|
|
int pciInit(void);
|
||
|
|
int pciExit(void);
|
||
|
|
|
||
|
|
|
||
|
|
PCITAG findPci(unsigned short bx);
|
||
|
|
u32 pciSlotBX(pciVideoPtr pvp);
|
||
|
|
|
||
|
|
void pciWriteLong(PCITAG tag, u32 idx, u32 data);
|
||
|
|
void pciWriteWord(PCITAG tag, u32 idx, u16 data);
|
||
|
|
void pciWriteByte(PCITAG tag, u32 idx, u8 data);
|
||
|
|
|
||
|
|
u32 pciReadLong(PCITAG tag, u32 idx);
|
||
|
|
u16 pciReadWord(PCITAG tag, u32 idx);
|
||
|
|
u8 pciReadByte(PCITAG tag, u32 idx);
|