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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 186 | decky | 1 | /* |
| 2 | * Copyright (C) 2005 Martin Decky |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #include <arch/drivers/ofw.h> |
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| 254 | decky | 30 | #include <arch/asm.h> |
| 186 | decky | 31 | #include <stdarg.h> |
| 201 | decky | 32 | #include <cpu.h> |
| 186 | decky | 33 | |
| 34 | ofw_entry ofw; |
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| 35 | |||
| 191 | decky | 36 | phandle ofw_chosen; |
| 37 | ihandle ofw_stdout; |
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| 38 | |||
| 186 | decky | 39 | void ofw_init(void) |
| 40 | { |
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| 191 | decky | 41 | ofw_chosen = ofw_find_device("/chosen"); |
| 186 | decky | 42 | if (ofw_chosen == -1) |
| 43 | ofw_done(); |
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| 44 | |||
| 210 | decky | 45 | if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, sizeof(ofw_stdout)) <= 0) |
| 186 | decky | 46 | ofw_stdout = 0; |
| 47 | } |
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| 48 | |||
| 49 | void ofw_done(void) |
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| 50 | { |
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| 51 | ofw_call("exit", 0, 0); |
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| 52 | cpu_halt(); |
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| 53 | } |
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| 54 | |||
| 55 | int ofw_call(const char *service, const int nargs, const int nret, ...) |
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| 56 | { |
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| 57 | va_list list; |
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| 191 | decky | 58 | ofw_args_t args; |
| 186 | decky | 59 | int i; |
| 60 | |||
| 61 | args.service = service; |
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| 62 | args.nargs = nargs; |
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| 63 | args.nret = nret; |
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| 64 | |||
| 65 | va_start(list, nret); |
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| 66 | for (i = 0; i < nargs; i++) |
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| 67 | args.args[i] = va_arg(list, ofw_arg_t); |
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| 68 | va_end(list); |
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| 69 | |||
| 70 | for (i = 0; i < nret; i++) |
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| 71 | args.args[i + nargs] = 0; |
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| 72 | |||
| 73 | ofw(&args); |
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| 74 | |||
| 75 | return args.args[nargs]; |
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| 76 | } |
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| 77 | |||
| 78 | void ofw_putchar(const char ch) |
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| 79 | { |
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| 80 | if (ofw_stdout == 0) |
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| 81 | return; |
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| 82 | |||
| 191 | decky | 83 | ofw_call("write", 3, 1, ofw_stdout, &ch, 1); |
| 186 | decky | 84 | } |
| 85 | |||
| 191 | decky | 86 | phandle ofw_find_device(const char *name) |
| 87 | { |
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| 88 | return ofw_call("finddevice", 1, 1, name); |
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| 89 | } |
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| 90 | |||
| 91 | int ofw_get_property(const phandle device, const char *name, void *buf, const int buflen) |
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| 92 | { |
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| 93 | return ofw_call("getprop", 4, 1, device, name, buf, buflen); |
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| 94 | } |
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| 95 | |||
| 207 | decky | 96 | void *ofw_claim(const void *addr, const int size, const int align) |
| 97 | { |
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| 98 | return (void *) ofw_call("claim", 3, 1, addr, size, align); |
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| 99 | } |
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| 100 | |||
| 186 | decky | 101 | void putchar(const char ch) |
| 102 | { |
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| 103 | ofw_putchar(ch); |
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| 104 | } |