include/api_public.h

   1 #ifndef _API_PUBLIC_H_
   2 #define _API_PUBLIC_H_
   3
   4 #define API_EINVAL              1       /* invalid argument(s)  */
   5 #define API_ENODEV              2       /* no device            */
   6 #define API_ENOMEM              3       /* no memory            */
   7 #define API_EBUSY               4       /* busy, occupied etc.  */
   8 #define API_EIO                 5       /* I/O error            */
   9
  10 typedef int (*scp_t)(int, int *, ...);
  11
  12 #define API_SIG_VERSION 1
  13 #define API_SIG_MAGIC   "UBootAPI"
  14 #define API_SIG_MAGLEN  8
  15
  16 struct api_signature {
  17         char            magic[API_SIG_MAGLEN];  /* magic string */
  18         uint16_t        version;                /* API version */
  19         uint32_t        checksum;               /* checksum of this sig struct */
  20         scp_t           syscall;                /* entry point to the API */
  21 };
  22
  23 enum {
  24         API_RSVD = 0,
  25         API_GETC,
  26         API_PUTC,
  27         API_TSTC,
  28         API_PUTS,
  29         API_RESET,
  30         API_GET_SYS_INFO,
  31         API_UDELAY,
  32         API_GET_TIMER,
  33         API_DEV_ENUM,
  34         API_DEV_OPEN,
  35         API_DEV_CLOSE,
  36         API_DEV_READ,
  37         API_DEV_WRITE,
  38         API_ENV_ENUM,
  39         API_ENV_GET,
  40         API_ENV_SET,
  41         API_MAXCALL
  42 };
  43
  44 #define MR_ATTR_FLASH   0x0001
  45 #define MR_ATTR_DRAM    0x0002
  46 #define MR_ATTR_SRAM    0x0003
  47
  48 struct mem_region {
  49         unsigned long   start;
  50         unsigned long   size;
  51         int             flags;
  52 };
  53
  54 struct sys_info {
  55         unsigned long           clk_bus;
  56         unsigned long           clk_cpu;
  57         unsigned long           bar;
  58         struct mem_region       *mr;
  59         int                     mr_no;  /* number of memory regions */
  60 };
  61
  62 #undef CFG_64BIT_LBA
  63 #ifdef CFG_64BIT_LBA
  64 typedef u_int64_t lbasize_t;
  65 #else
  66 typedef unsigned long lbasize_t;
  67 #endif
  68 typedef unsigned long lbastart_t;
  69
  70 #define DEV_TYP_NONE    0x0000
  71 #define DEV_TYP_NET     0x0001
  72
  73 #define DEV_TYP_STOR    0x0002
  74 #define DT_STOR_IDE     0x0010
  75 #define DT_STOR_SCSI    0x0020
  76 #define DT_STOR_USB     0x0040
  77 #define DT_STOR_MMC     0x0080
  78
  79 #define DEV_STA_CLOSED  0x0000          /* invalid, closed */
  80 #define DEV_STA_OPEN    0x0001          /* open i.e. active */
  81
  82 struct device_info {
  83         int     type;
  84         void    *cookie;
  85
  86         union {
  87                 struct {
  88                         lbasize_t       block_count;    /* no of blocks */
  89                         unsigned long   block_size;     /* size of one block */
  90                 } storage;
  91
  92                 struct {
  93                         unsigned char   hwaddr[6];
  94                 } net;
  95         } info;
  96 #define di_stor info.storage
  97 #define di_net info.net
  98
  99         int     state;
 100 };
 101
 102 #endif /* _API_PUBLIC_H_ */