include/api_public.h

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