151 lines
3.6 KiB
C
151 lines
3.6 KiB
C
/* uboot.h - declare variables and functions for U-Boot support */
|
|
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2013 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef GRUB_UBOOT_UBOOT_HEADER
|
|
#define GRUB_UBOOT_UBOOT_HEADER 1
|
|
|
|
#include <grub/types.h>
|
|
#include <grub/dl.h>
|
|
|
|
/* Functions. */
|
|
void grub_uboot_mm_init (void);
|
|
void grub_uboot_init (void);
|
|
void grub_uboot_fini (void);
|
|
|
|
void uboot_return (int) __attribute__ ((noreturn));
|
|
|
|
grub_addr_t uboot_get_real_bss_start (void);
|
|
|
|
grub_err_t grub_uboot_probe_hardware (void);
|
|
|
|
extern grub_addr_t EXPORT_VAR (start_of_ram);
|
|
|
|
grub_uint32_t EXPORT_FUNC (uboot_get_machine_type) (void);
|
|
grub_addr_t EXPORT_FUNC (uboot_get_boot_data) (void);
|
|
|
|
|
|
/*
|
|
* The U-Boot API operates through a "syscall" interface, consisting of an
|
|
* entry point address and a set of syscall numbers. The location of this
|
|
* entry point is described in a structure allocated on the U-Boot heap.
|
|
* We scan through a defined region around the hint address passed to us
|
|
* from U-Boot.
|
|
*/
|
|
#include <grub/uboot/api_public.h>
|
|
|
|
#define UBOOT_API_SEARCH_LEN (3 * 1024 * 1024)
|
|
int uboot_api_init (void);
|
|
|
|
/* All functions below are wrappers around the uboot_syscall() function */
|
|
|
|
/*
|
|
* int API_getc(int *c)
|
|
*/
|
|
int uboot_getc (void);
|
|
|
|
/*
|
|
* int API_tstc(int *c)
|
|
*/
|
|
int uboot_tstc (void);
|
|
|
|
/*
|
|
* int API_putc(char *ch)
|
|
*/
|
|
void uboot_putc (int c);
|
|
|
|
/*
|
|
* int API_puts(const char *s)
|
|
*/
|
|
void uboot_puts (const char *s);
|
|
|
|
/*
|
|
* int API_reset(void)
|
|
*/
|
|
void EXPORT_FUNC (uboot_reset) (void);
|
|
|
|
/*
|
|
* int API_get_sys_info(struct sys_info *si)
|
|
*
|
|
* fill out the sys_info struct containing selected parameters about the
|
|
* machine
|
|
*/
|
|
struct sys_info *uboot_get_sys_info (void);
|
|
|
|
/*
|
|
* int API_udelay(unsigned long *udelay)
|
|
*/
|
|
void uboot_udelay (grub_uint32_t usec);
|
|
|
|
/*
|
|
* int API_get_timer(unsigned long *current, unsigned long *base)
|
|
*/
|
|
grub_uint32_t uboot_get_timer (grub_uint32_t base);
|
|
|
|
/*
|
|
* int API_dev_enum(struct device_info *)
|
|
*/
|
|
int uboot_dev_enum (void);
|
|
|
|
struct device_info *uboot_dev_get (int handle);
|
|
|
|
/*
|
|
* int API_dev_open(struct device_info *)
|
|
*/
|
|
int uboot_dev_open (int handle);
|
|
|
|
/*
|
|
* int API_dev_close(struct device_info *)
|
|
*/
|
|
int uboot_dev_close (int handle);
|
|
|
|
/*
|
|
* Notice: this is for sending network packets only, as U-Boot does not
|
|
* support writing to storage at the moment (12.2007)
|
|
*
|
|
* int API_dev_write(struct device_info *di, void *buf, int *len)
|
|
*/
|
|
int uboot_dev_write (int handle, void *buf, int *len);
|
|
|
|
/*
|
|
* int API_dev_read(
|
|
* struct device_info *di,
|
|
* void *buf,
|
|
* size_t *len,
|
|
* unsigned long *start
|
|
* size_t *act_len
|
|
* )
|
|
*/
|
|
int uboot_dev_read (int handle, void *buf, lbasize_t blocks,
|
|
lbastart_t start, lbasize_t * real_blocks);
|
|
|
|
int uboot_dev_recv (int handle, void *buf, int size, int *real_size);
|
|
int uboot_dev_send (int handle, void *buf, int size);
|
|
|
|
/*
|
|
* int API_env_get(const char *name, char **value)
|
|
*/
|
|
char *uboot_env_get (const char *name);
|
|
|
|
/*
|
|
* int API_env_set(const char *name, const char *value)
|
|
*/
|
|
void uboot_env_set (const char *name, const char *value);
|
|
|
|
#endif /* ! GRUB_UBOOT_UBOOT_HEADER */
|