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/* 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.
* They have a generic component which applies to all chips for
* path, etc.
*/
/* some of the types of resources chips can control */
#ifndef CONFIG_CHIP_CONFIGURE
#define CONFIGURE(dev, pass) chip_configure(chip, pass)
#else
#define CONFIGURE(dev, pass)
#endif
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
};
enum chip_pass {
CONF_PASS_PRE_CONSOLE,
CONF_PASS_PRE_PCI,
CONF_PASS_PRE_DEVICE_ENUMERATE,
CONF_PASS_PRE_DEVICE_CONFIGURE,
CONF_PASS_PRE_DEVICE_ENABLE,
CONF_PASS_PRE_DEVICE_INITIALIZE,
CONF_PASS_PRE_BOOT
};
/* 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;
/* there is one of these for each TYPE of chip */
struct chip_control {
void (*enable)(struct chip *, enum chip_pass);
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. */
int irq;
struct chip *next, *children;
/* there is one of these for each INSTANCE of a chip */
void *chip_info; /* the dreaded "void *" */
};
extern struct chip root;
extern void chip_configure(struct chip *, enum chip_pass);
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