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Diffstat (limited to 'include/pcibios.h')
-rw-r--r-- | include/pcibios.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/pcibios.h b/include/pcibios.h new file mode 100644 index 0000000000..0bd693ab0e --- /dev/null +++ b/include/pcibios.h @@ -0,0 +1,62 @@ +/** + * @file + * @ingroup i386_pcibios + * @brief + */ + +/* + * This software is Copyright (C) 1998 by T.sqware - all rights limited + * It is provided in to the public domain "as is", can be freely modified + * as far as this copyight notice is kept unchanged, but does not imply + * an endorsement by T.sqware of the product in which it is included. + */ + +/** + * @defgroup i386_pcibios + * @ingroup i386_pci + * @brief + * @{ + */ + +#ifndef _PCIB_H +#define _PCIB_H + +#include <rtems/pci.h> + +/** @brief + * Make device signature from bus number, device numebr and function + * number + */ +#define PCIB_DEVSIG_MAKE(b,d,f) ((b<<8)|(d<<3)|(f)) + +/** @brief + * Extract valrous part from device signature + */ +#define PCIB_DEVSIG_BUS(x) (((x)>>8) &0xff) +#define PCIB_DEVSIG_DEV(x) (((x)>>3) & 0x1f) +#define PCIB_DEVSIG_FUNC(x) ((x) & 0x7) + +#ifdef __cplusplus +extern "C" { +#endif + +int pcib_find_by_class(int classCode, int idx, int *sig); +int pcib_special_cycle(int busNo, int data); +int pcib_conf_read8(int sig, int off, uint8_t *data); +int pcib_conf_read16(int sig, int off, uint16_t *data); +int pcib_conf_read32(int sig, int off, uint32_t *data); +int pcib_conf_write8(int sig, int off, uint8_t data); +int pcib_conf_write16(int sig, int off, uint16_t data); +int pcib_conf_write32(int sig, int off, uint32_t data); + +int +pci_find_device( unsigned short vendorid, unsigned short deviceid, + int instance, int *pbus, int *pdev, int *pfun ); + +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif /* _PCIB_H */ |