examples/api/glue.h

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