dreg.h

DREG_H

Linking by #include <dreg.h>, compiling with dreg.o.

dkernel_registry

Structure with one task, mark for KERNEL, where find a first driver structure, for start drivers.

typedef struct dkernel_registry {
  u32 pattern; // Fill by init, magic of struct (DKES)
  u32 version; // Fill by init, Kernel ABI ver
  u64 first_driver; // Pointer to first driver structure in Virtual Memory
} dkernel_registry_t

dreg_init(void): void

Write to memory Registry, with empty first_driver, he fill later.

dreg_register_driver(*drv: ddriver_t): int

Register driver in reg, he fill next field in drv by first_driver, and refill first_driver by drv pointer. Returns 0 at success, -1 at error.

dreg_first_driver(void): *ddriver_t

Returns a pointer to first_driver, or zero-pointer if first_driver is zero.

dreg_get(void): dkernel_registry_t

Returns dkernel_registry.

Variables

#define DKES_PATTERN 0x53454B44u // Magic `DKES`
#define DKES_VERSION 0x00010000u // Kernel ABI Ver
#define DREG_ADDR    0x1300000ULL // Address of `dkernel_registry`