cfe_api.c

俄罗斯高人Mamaich的Pocket gcc编译器（运行在PocketPC上）的全部源代码。

    *dest = 0;

    xiocb.xiocb_fcode = CFE_CMD_ENV_GET;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = 0;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_envbuf_t);
    xiocb.plist.xiocb_envbuf.enum_idx = 0;
    xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
    xiocb.plist.xiocb_envbuf.name_length = cfe_strlen(name);
    xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(dest);
    xiocb.plist.xiocb_envbuf.val_length = destlen;

    cfe_iocb_dispatch(&xiocb);

    return xiocb.xiocb_status;
}
#endif /* CFE_API_getenv || CFE_API_ALL */

#if defined(CFE_API_getfwinfo) || defined(CFE_API_ALL)
int
cfe_getfwinfo(cfe_fwinfo_t *info)
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_FW_GETINFO;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = 0;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_fwinfo_t);

    cfe_iocb_dispatch(&xiocb);

    if (xiocb.xiocb_status < 0)
	return xiocb.xiocb_status;

    info->fwi_version = xiocb.plist.xiocb_fwinfo.fwi_version;
    info->fwi_totalmem = xiocb.plist.xiocb_fwinfo.fwi_totalmem;
    info->fwi_flags = xiocb.plist.xiocb_fwinfo.fwi_flags;
    info->fwi_boardid = xiocb.plist.xiocb_fwinfo.fwi_boardid;
    info->fwi_bootarea_va = xiocb.plist.xiocb_fwinfo.fwi_bootarea_va;
    info->fwi_bootarea_pa = xiocb.plist.xiocb_fwinfo.fwi_bootarea_pa;
    info->fwi_bootarea_size = xiocb.plist.xiocb_fwinfo.fwi_bootarea_size;
#if 0
    info->fwi_reserved1 = xiocb.plist.xiocb_fwinfo.fwi_reserved1;
    info->fwi_reserved2 = xiocb.plist.xiocb_fwinfo.fwi_reserved2;
    info->fwi_reserved3 = xiocb.plist.xiocb_fwinfo.fwi_reserved3;
#endif

    return 0;
}
#endif /* CFE_API_getfwinfo || CFE_API_ALL */

#if defined(CFE_API_getstdhandle) || defined(CFE_API_ALL)
int
cfe_getstdhandle(int flg)
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_DEV_GETHANDLE;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = 0;
    xiocb.xiocb_flags = flg;
    xiocb.xiocb_psize = 0;

    cfe_iocb_dispatch(&xiocb);

    if (xiocb.xiocb_status < 0)
	return xiocb.xiocb_status;
    return xiocb.xiocb_handle;

}
#endif /* CFE_API_getstdhandle || CFE_API_ALL */

#if defined(CFE_API_getticks) || defined(CFE_API_ALL)
int64_t
#ifdef CFE_API_IMPL_NAMESPACE
__cfe_getticks(void)
#else
cfe_getticks(void)
#endif
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_FW_GETTIME;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = 0;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_time_t);
    xiocb.plist.xiocb_time.ticks = 0;

    cfe_iocb_dispatch(&xiocb);

    return xiocb.plist.xiocb_time.ticks;

}
#endif /* CFE_API_getticks || CFE_API_ALL */

#if defined(CFE_API_inpstat) || defined(CFE_API_ALL)
int
cfe_inpstat(int handle)
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_DEV_INPSTAT;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = handle;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_inpstat_t);
    xiocb.plist.xiocb_inpstat.inp_status = 0;

    cfe_iocb_dispatch(&xiocb);

    if (xiocb.xiocb_status < 0)
	return xiocb.xiocb_status;
    return xiocb.plist.xiocb_inpstat.inp_status;

}
#endif /* CFE_API_inpstat || CFE_API_ALL */

#if defined(CFE_API_ioctl) || defined(CFE_API_ALL)
int
cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer, int length,
	  int *retlen, cfe_xuint_t offset)
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_DEV_IOCTL;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = handle;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
    xiocb.plist.xiocb_buffer.buf_offset = offset;
    xiocb.plist.xiocb_buffer.buf_ioctlcmd = ioctlnum;
    xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
    xiocb.plist.xiocb_buffer.buf_length = length;

    cfe_iocb_dispatch(&xiocb);

    if (retlen)
	*retlen = xiocb.plist.xiocb_buffer.buf_retlen;
    return xiocb.xiocb_status;
}
#endif /* CFE_API_ioctl || CFE_API_ALL */

#if defined(CFE_API_open) || defined(CFE_API_ALL)
int
cfe_open(char *name)
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_DEV_OPEN;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = 0;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
    xiocb.plist.xiocb_buffer.buf_offset = 0;
    xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name);
    xiocb.plist.xiocb_buffer.buf_length = cfe_strlen(name);

    cfe_iocb_dispatch(&xiocb);

    if (xiocb.xiocb_status < 0)
	return xiocb.xiocb_status;
    return xiocb.xiocb_handle;
}
#endif /* CFE_API_open || CFE_API_ALL */

#if defined(CFE_API_read) || defined(CFE_API_ALL)
int
cfe_read(int handle, unsigned char *buffer, int length)
{
    return cfe_readblk(handle, 0, buffer, length);
}
#endif /* CFE_API_read || CFE_API_ALL */

#if defined(CFE_API_readblk) || defined(CFE_API_ALL)
int
cfe_readblk(int handle, cfe_xint_t offset, unsigned char *buffer, int length)
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_DEV_READ;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = handle;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
    xiocb.plist.xiocb_buffer.buf_offset = offset;
    xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
    xiocb.plist.xiocb_buffer.buf_length = length;

    cfe_iocb_dispatch(&xiocb);

    if (xiocb.xiocb_status < 0)
	return xiocb.xiocb_status;
    return xiocb.plist.xiocb_buffer.buf_retlen;
}
#endif /* CFE_API_readblk || CFE_API_ALL */

#if defined(CFE_API_setenv) || defined(CFE_API_ALL)
int
cfe_setenv(char *name, char *val)
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_ENV_SET;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = 0;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_envbuf_t);
    xiocb.plist.xiocb_envbuf.enum_idx = 0;
    xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
    xiocb.plist.xiocb_envbuf.name_length = cfe_strlen(name);
    xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val);
    xiocb.plist.xiocb_envbuf.val_length = cfe_strlen(val);

    cfe_iocb_dispatch(&xiocb);

    return xiocb.xiocb_status;
}
#endif /* CFE_API_setenv || CFE_API_ALL */

#if (defined(CFE_API_strlen) || defined(CFE_API_ALL)) \
    && !defined(CFE_API_STRLEN_CUSTOM)
int
cfe_strlen(char *name)
{
    int count = 0;

    while (*name++)
	count++;

    return count;
}
#endif /* CFE_API_strlen || CFE_API_ALL */

#if defined(CFE_API_write) || defined(CFE_API_ALL)
int
cfe_write(int handle, unsigned char *buffer, int length)
{
    return cfe_writeblk(handle, 0, buffer, length);
}
#endif /* CFE_API_write || CFE_API_ALL */

#if defined(CFE_API_writeblk) || defined(CFE_API_ALL)
int
cfe_writeblk(int handle, cfe_xint_t offset, unsigned char *buffer, int length)
{
    cfe_xiocb_t xiocb;

    xiocb.xiocb_fcode = CFE_CMD_DEV_WRITE;
    xiocb.xiocb_status = 0;
    xiocb.xiocb_handle = handle;
    xiocb.xiocb_flags = 0;
    xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
    xiocb.plist.xiocb_buffer.buf_offset = offset;
    xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
    xiocb.plist.xiocb_buffer.buf_length = length;

    cfe_iocb_dispatch(&xiocb);

    if (xiocb.xiocb_status < 0)
	return xiocb.xiocb_status;
    return xiocb.plist.xiocb_buffer.buf_retlen;
}
#endif /* CFE_API_writeblk || CFE_API_ALL */