examples/api/glue.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * (C) Copyright 2007 Semihalf
   4  *
   5  * Written by: Rafal Jaworowski <raj@semihalf.com>
   6  */
   7
   8 /*
   9  * This is the header file for conveniency wrapper routines (API glue)
  10  */
  11
  12 #ifndef _API_GLUE_H_
  13 #define _API_GLUE_H_
  14
  15 #define API_SEARCH_LEN          (3 * 1024 * 1024)       /* 3MB search range */
  16
  17 #define UB_MAX_MR       5       /* max mem regions number */
  18 #define UB_MAX_DEV      6       /* max devices number */
  19
  20 extern void *syscall_ptr;
  21 extern uint32_t search_hint;
  22
  23 int     syscall(int, int *, ...);
  24 int     api_search_sig(struct api_signature **sig);
  25
  26 /*
  27  * The ub_ library calls are part of the application, not U-Boot code!  They
  28  * are front-end wrappers that are used by the consumer application: they
  29  * prepare arguments for particular syscall and jump to the low level
  30  * syscall()
  31  */
  32
  33 /* console */
  34 int     ub_getc(void);
  35 int     ub_tstc(void);
  36 void    ub_putc(char c);
  37 void    ub_puts(const char *s);
  38
  39 /* system */
  40 void                    ub_reset(void);
  41 struct sys_info *       ub_get_sys_info(void);
  42
  43 /* time */
  44 void            ub_udelay(unsigned long);
  45 unsigned long   ub_get_timer(unsigned long);
  46
  47 /* env vars */
  48 char *          ub_env_get(const char *name);
  49 void            ub_env_set(const char *name, char *value);
  50 const char *    ub_env_enum(const char *last);
  51
  52 /* devices */
  53 int                     ub_dev_enum(void);
  54 int                     ub_dev_open(int handle);
  55 int                     ub_dev_close(int handle);
  56 int                     ub_dev_read(int handle, void *buf, lbasize_t len,
  57                                 lbastart_t start, lbasize_t *rlen);
  58 int                     ub_dev_send(int handle, void *buf, int len);
  59 int                     ub_dev_recv(int handle, void *buf, int len, int *rlen);
  60 struct device_info *    ub_dev_get(int);
  61
  62 /* display */
  63 int ub_display_get_info(int type, struct display_info *di);
  64 int ub_display_draw_bitmap(ulong bitmap, int x, int y);
  65 void ub_display_clear(void);
  66
  67 #endif /* _API_GLUE_H_ */