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#ifndef DEVICE_CHIP_H
#include <device/path.h>
/* 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 */
#if CONFIG_CHIP_CONFIGURE == 1
#define CONFIGURE(pass) chip_configure(&static_root, pass)
#else
#define CONFIGURE(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_POST_PCI,
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;
struct device;
/* there is one of these for each TYPE of chip */
struct chip_control {
/* This is the print name for debugging */
char *name;
void (*enable)(struct chip *, enum chip_pass);
void (*enumerate)(struct chip *chip);
void (*enable_dev)(struct device *dev);
};
struct chip_device_path {
struct device_path path;
unsigned channel;
int enable;
};
struct device;
struct bus;
#ifndef MAX_CHIP_PATHS
#define MAX_CHIP_PATHS 16
#endif
struct chip {
unsigned link;
struct chip_control *control; /* for this device */
struct chip_device_path path[MAX_CHIP_PATHS]; /* can be 0, in which case the default is taken */
char *configuration; /* can be 0. */
struct chip *next, *children;
/* there is one of these for each INSTANCE of a chip */
void *chip_info; /* the dreaded "void *" */
/* bus and device links into the device tree */
struct bus *bus;
struct device *dev;
};
extern struct chip static_root;
extern void chip_configure(struct chip *, enum chip_pass);
extern void chip_enumerate(struct chip *chip);
#endif /* DEVICE_CHIP_H */
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