| 0,0 → 1,107 |
|---|
| /* |
| * Copyright (C) 2005 Martin Decky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "ofw.h" |
| |
| ofw_entry ofw; |
| |
| phandle ofw_chosen; |
| ihandle ofw_stdout; |
| |
| |
| void init(void) |
| { |
| ofw_chosen = ofw_find_device("/chosen"); |
| if (ofw_chosen == -1) |
| ofw_call("exit", 0, 0); |
| |
| if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, sizeof(ofw_stdout)) <= 0) |
| ofw_stdout = 0; |
| } |
| |
| |
| int ofw_call(const char *service, const int nargs, const int nret, ...) |
| { |
| va_list list; |
| ofw_args_t args; |
| int i; |
| |
| args.service = service; |
| args.nargs = nargs; |
| args.nret = nret; |
| |
| va_start(list, nret); |
| for (i = 0; i < nargs; i++) |
| args.args[i] = va_arg(list, ofw_arg_t); |
| va_end(list); |
| |
| for (i = 0; i < nret; i++) |
| args.args[i + nargs] = 0; |
| |
| ofw(&args); |
| |
| return args.args[nargs]; |
| } |
| |
| |
| void ofw_write(const char *str, const int len) |
| { |
| if (ofw_stdout == 0) |
| return; |
| |
| ofw_call("write", 3, 1, ofw_stdout, str, len); |
| } |
| |
| |
| void ofw_puts(const char *str) |
| { |
| int len = 0; |
| |
| while (str[len] != 0) |
| len++; |
| |
| ofw_write(str, len); |
| } |
| |
| |
| phandle ofw_find_device(const char *name) |
| { |
| return ofw_call("finddevice", 1, 1, name); |
| } |
| |
| |
| int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen) |
| { |
| return ofw_call("getprop", 4, 1, device, name, buf, buflen); |
| } |
| |
| |
| void *ofw_claim(const void *addr, const int size, const int align) |
| { |
| return (void *) ofw_call("claim", 3, 1, addr, size, align); |
| } |