pciconfig_read

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Version: 2003-07-14 (openSuse - 09/10/07)

Section: 2 (Appels système)

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pciconfig_read, pciconfig_write, pciconfig_iobase - pci ¥Ç¥Ð¥¤¥¹¾ðÊó¤ò°·¤¦

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#include <pci.h>



int pciconfig_read(unsigned long bus, unsigned long dfn,

     unsigned long off, unsigned long len, void *buf);

int pciconfig_write(unsigned long bus, unsigned long dfn,

     unsigned long off, unsigned long len, void *buf);

int pciconfig_iobase(long which, unsigned long bus,

     unsigned long devfn);

ÀâÌÀ

PCI ¥Ç¥Ð¥¤¥¹¤È¤Î¤ä¤ê¼è¤ê (interaction) ¤Ï ¥«¡¼¥Í¥ë PCI ¥ì¥¤¥ä¤Ç¤¹¤Ç¤Ë½èÍý¤µ¤ì¤Æ¤¤¤ë¤Î¤Ç¡¢ Ä̾ï¤Ï¤³¤é¤é¤Î´Ø¿ô¤ò¥æ¡¼¥¶¶õ´Ö¤«¤é¥¢¥¯¥»¥¹¤¹¤ëɬÍפϤʤ¤¡£

pciconfig_read()
¥Ç¥Ð¥¤¥¹ dev ¤Î¥ª¥Õ¥»¥Ã¥È off ¤ÎÃͤò buf ¤ËÆɤ߹þ¤à¡£
pciconfig_write()
¥Ç¥Ð¥¤¥¹ dev ¤Î¥ª¥Õ¥»¥Ã¥È off ¤Ë buf ¤ÎÃͤò½ñ¤­¹þ¤à¡£
pciconfig_iobase()
bus/devfn ¥Ú¥¢¤ò¤³¤Î´Ø¿ô¤ËÅϤ·¡¢ ¥á¥â¥ê¥ª¥Õ¥»¥Ã¥È (prep ¤Î¤è¤¦¤Ê¤â¤Î¤Ç¤Ï¡¢¤³¤ÎÃÍ¤Ï 0xc0000000 ¤Ç¤¢¤ë) ¤È PIO ¥µ¥¤¥¯¥ë¤Î IO ¥Ù¡¼¥¹¤ÎʪÍý¥¢¥É¥ì¥¹¤ò¼èÆÀ¤¹¤ë¡£ ¤Þ¤¿¡¢¤â¤·¤¢¤ë¤Ê¤é¤Ð ISA hole ¤ÎʪÍý¥¢¥É¥ì¥¹¤ò¼èÆÀ¤¹¤ë¡£

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pciconfig_read()
À®¸ù¤·¤¿¾ì¹ç¡¢0 ¤¬ÊÖ¤µ¤ì¤ë¡£ ¥¨¥é¡¼¤Î¾ì¹ç¡¢-1 ¤¬ÊÖ¤µ¤ì¡¢ errno ¤¬Å¬ÀÚ¤ËÀßÄꤵ¤ì¤ë¡£
pciconfig_write()
À®¸ù¤·¤¿¾ì¹ç¡¢0 ¤¬ÊÖ¤µ¤ì¤ë¡£ ¥¨¥é¡¼¤Î¾ì¹ç¡¢-1 ¤¬ÊÖ¤µ¤ì¡¢ errno ¤¬Å¬ÀÚ¤ËÀßÄꤵ¤ì¤ë¡£
pciconfig_iobase()
which ¤ÎÃͤ˴ð¤Å¤¤¤Æ¡¢ÊªÍý¥á¥â¥êÆâ¤ÎÍÍ¡¹¤Ê I/O Îΰè¤Î°ÌÃÖ¾ðÊó¤¬ÊÖ¤µ¤ì¤ë¡£ which ¤ÎÃͤϡ¢ IOBASE_BRIDGE_NUMBER, IOBASE_MEMORY, IOBASE_IO, IOBASE_ISA_IO, IOBASE_ISA_MEM ¤Ç¤¢¤ë¡£

¥¨¥é¡¼

EINVAL
len ¤ÎÃͤ¬Ìµ¸ú¤Ç¤¢¤ë¡£ ¤³¤Î¥¨¥é¡¼¤Ï pciconfig_iobase() ¤Ë¤ÏŬÍѤµ¤ì¤Ê¤¤¡£
EIO
I/O ¥¨¥é¡¼¡£
ENODEV
pciconfig_iobase() ¤Î¾ì¹ç¡¢¤Ç¥Û¡¼¥¹ (hose) ¤ÎÃͤ¬ NULL ¤Ç¤¢¤ë¡£ ¾¤Î¸Æ¤Ó½Ð¤·¤Î¾ì¹ç¡¢¥¹¥í¥Ã¥È (slot) ¤¬¸«¤Ä¤«¤é¤Ê¤¤¡£
ENOSYS
¤³¤Î¥·¥¹¥Æ¥à¤Ï¤³¤ì¤é¤Î¸Æ¤Ó½Ð¤·¤ò¼ÂÁõ¤·¤Æ¤¤¤Ê¤¤¡£ (CONFIG_PCI ¤¬ÄêµÁ¤µ¤ì¤Æ¤¤¤Ê¤¤)¡£
EOPNOTSUPP
¤³¤ÎÊÖ¤êÃÍ¤Ï pciconfig_iobase() ¤Ç¤Î¤ßÍ­¸ú¤Ç¤¢¤ë¡£ ¤³¤Î¥¨¥é¡¼¤Ï which ¤ÎÃͤ¬Ìµ¸ú¤Ç¤¢¤ë¤È¤­¤ËÊÖ¤µ¤ì¤ë¡£
EPERM
¥æ¡¼¥¶¤¬ CAP_SYS_ADMIN ¸¢¸Â¤ò»ý¤Ã¤Æ¤¤¤Ê¤¤¡£ ¤³¤Î¥¨¥é¡¼¤Ï pciconfig_iobase() ¤Ë¤ÏŬÍѤµ¤ì¤Ê¤¤¡£

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¤³¤ì¤é¤Î¸Æ¤Ó½Ð¤·¤Ï Linux ÆÃÍ­¤Î¤â¤Î¤Ç¤¢¤ê¡¢ Linux 2.0.26/2.1.11 ¤«¤é»ÈÍѲÄǽ¤Ç¤¢¤ë¡£

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