/* chips are arbitrary chips (superio, southbridge, etc.) * They have private structures that define chip resources and default * settings. They have four externally visible functions for control. * new settings are provided as ascii strings. */ /* some of the types of resources chips can control */ struct com_ports { unsigned int enable,baud, base, irq; }; /* lpt port description. * Note that for many chips you only really need to define the * enable. */ struct lpt_ports { unsigned int enable, // 1 if this port is enabled mode, // pp mode base, // IO base of the parallel port irq; // irq }; /* linkages from devices of a type (e.g. superio devices) * to the actual physical PCI device. This type is used in an array of * structs built by NLBConfig.py. We owe this idea to Plan 9. */ struct chip; struct chip_control { void (*alloc)(struct chip *s); void (*pre_pci_init)(struct chip *s); void (*init)(struct chip *s); void (*finishup)(struct chip *s); char *path; /* the default path. Can be overridden * by commands in config */ // This is the print name for debugging char *name; }; struct chip { struct chip_control *control; /* for this device */ char *path; /* can be 0, in which case the default is taken */ char *configuration; /* can be 0. */ };