include/api_public.h

   1 /* SPDX-License-Identifier: GPL-2.0+ OR BSD-2-Clause */
   2 /*
   3  * (C) Copyright 2007-2008 Semihalf
   4  *
   5  * Written by: Rafal Jaworowski <raj@semihalf.com>
   6  */
   7
   8 #ifndef _API_PUBLIC_H_
   9 #define _API_PUBLIC_H_
  10
  11 #define API_EINVAL              1       /* invalid argument(s)  */
  12 #define API_ENODEV              2       /* no device            */
  13 #define API_ENOMEM              3       /* no memory            */
  14 #define API_EBUSY               4       /* busy, occupied etc.  */
  15 #define API_EIO                 5       /* I/O error            */
  16 #define API_ESYSC               6       /* syscall error        */
  17
  18 typedef int (*scp_t)(int, int *, ...);
  19
  20 #define API_SIG_VERSION 1
  21 #define API_SIG_MAGIC   "UBootAPI"
  22 #define API_SIG_MAGLEN  8
  23
  24 struct api_signature {
  25         char            magic[API_SIG_MAGLEN];  /* magic string */
  26         uint16_t        version;                /* API version */
  27         uint32_t        checksum;               /* checksum of this sig struct */
  28         scp_t           syscall;                /* entry point to the API */
  29 };
  30
  31 enum {
  32         API_RSVD = 0,
  33         API_GETC,
  34         API_PUTC,
  35         API_TSTC,
  36         API_PUTS,
  37         API_RESET,
  38         API_GET_SYS_INFO,
  39         API_UDELAY,
  40         API_GET_TIMER,
  41         API_DEV_ENUM,
  42         API_DEV_OPEN,
  43         API_DEV_CLOSE,
  44         API_DEV_READ,
  45         API_DEV_WRITE,
  46         API_ENV_ENUM,
  47         API_ENV_GET,
  48         API_ENV_SET,
  49         API_DISPLAY_GET_INFO,
  50         API_DISPLAY_DRAW_BITMAP,
  51         API_DISPLAY_CLEAR,
  52         API_MAXCALL
  53 };
  54
  55 #define MR_ATTR_FLASH   0x0001
  56 #define MR_ATTR_DRAM    0x0002
  57 #define MR_ATTR_SRAM    0x0003
  58
  59 struct mem_region {
  60         unsigned long   start;
  61         unsigned long   size;
  62         int             flags;
  63 };
  64
  65 struct sys_info {
  66         unsigned long           clk_bus;
  67         unsigned long           clk_cpu;
  68         unsigned long           bar;
  69         struct mem_region       *mr;
  70         int                     mr_no;  /* number of memory regions */
  71 };
  72
  73 #undef CONFIG_SYS_64BIT_LBA
  74 #ifdef CONFIG_SYS_64BIT_LBA
  75 typedef u_int64_t lbasize_t;
  76 #else
  77 typedef unsigned long lbasize_t;
  78 #endif
  79 typedef unsigned long lbastart_t;
  80
  81 #define DEV_TYP_NONE    0x0000
  82 #define DEV_TYP_NET     0x0001
  83
  84 #define DEV_TYP_STOR    0x0002
  85 #define DT_STOR_IDE     0x0010
  86 #define DT_STOR_SCSI    0x0020
  87 #define DT_STOR_USB     0x0040
  88 #define DT_STOR_MMC     0x0080
  89 #define DT_STOR_SATA    0x0100
  90
  91 #define DEV_STA_CLOSED  0x0000          /* invalid, closed */
  92 #define DEV_STA_OPEN    0x0001          /* open i.e. active */
  93
  94 struct device_info {
  95         int     type;
  96         void    *cookie;
  97
  98         union {
  99                 struct {
 100                         lbasize_t       block_count;    /* no of blocks */
 101                         unsigned long   block_size;     /* size of one block */
 102                 } storage;
 103
 104                 struct {
 105                         unsigned char   hwaddr[6];
 106                 } net;
 107         } info;
 108 #define di_stor info.storage
 109 #define di_net info.net
 110
 111         int     state;
 112 };
 113
 114 #define DISPLAY_TYPE_LCD        0x0001
 115 #define DISPLAY_TYPE_VIDEO      0x0002
 116
 117 struct display_info {
 118         int type;
 119         /* screen size in pixels */
 120         int pixel_width;
 121         int pixel_height;
 122         /* screen size in rows and columns of text */
 123         int screen_rows;
 124         int screen_cols;
 125 };
 126
 127 #endif /* _API_PUBLIC_H_ */