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/* * Header for Microchannel Architecture Bus * Written by Martin Kolinek, February 1996 */ #ifndef _LINUX_MCA_H #define _LINUX_MCA_H /* Maximal number of MCA slots - actually, some machines have less, but * they all have sufficient number of POS registers to cover 8. */ #define MCA_MAX_SLOT_NR 8 /* MCA_NOTFOUND is an error condition. The other two indicate * motherboard POS registers contain the adapter. They might be * returned by the mca_find_adapter() function, and can be used as * arguments to mca_read_stored_pos(). I'm not going to allow direct * access to the motherboard registers until we run across an adapter * that requires it. We don't know enough about them to know if it's * safe. * * See Documentation/mca.txt or one of the existing drivers for * more information. */ #define MCA_NOTFOUND (-1) #define MCA_INTEGSCSI (MCA_MAX_SLOT_NR) #define MCA_INTEGVIDEO (MCA_MAX_SLOT_NR+1) #define MCA_MOTHERBOARD (MCA_MAX_SLOT_NR+2) /* Max number of adapters, including both slots and various integrated * things. */ #define MCA_NUMADAPTERS (MCA_MAX_SLOT_NR+3) #endif /* _LINUX_MCA_H */