/[gxemul]/trunk/src/promemul/ps2_bios.c
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Contents of /trunk/src/promemul/ps2_bios.c

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Revision 44 - (show annotations)
Mon Oct 8 16:22:56 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 7480 byte(s) 
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1632 2007/09/11 21:46:35 debug Exp $
20070616	Implementing the MIPS32/64 revision 2 "ror" instruction.
20070617	Adding a struct for each physpage which keeps track of which
		ranges within that page (base offset, length) that are
		continuously translatable. When running with native code
		generation enabled (-b), a range is added after each read-
		ahead loop.
		Experimenting with using the physical program counter sample
		data (implemented 20070608) together with the "translatable
		range" information, to figure out which physical address ranges
		would be worth translating to native code (if the number of
		samples falling within a range is above a certain threshold).
20070618	Adding automagic building of .index comment files for
		src/file/, src/promemul/, src src/useremul/ as well.
		Adding a "has been translated" bit to the ranges, so that only
		not-yet-translated ranges will be sampled.
20070619	Moving src/cpu.c and src/memory_rw.c into src/cpus/,
		src/device.c into src/devices/, and src/machine.c into
		src/machines/.
		Creating a skeleton cc/ld native backend module; beginning on
		the function which will detect cc command line, etc.
20070620	Continuing on the native code generation infrastructure.
20070621	Moving src/x11.c and src/console.c into a new src/console/
		subdir (for everything that is console or framebuffer related).
		Moving src/symbol*.c into a new src/symbol/, which should
		contain anything that is symbol handling related.
20070624	Making the program counter sampling threshold a "settings
		variable" (sampling_threshold), i.e. it can now be changed
		during runtime.
		Switching the RELEASE notes format from plain text to HTML.
		If the TMPDIR environment variable is set, it is used instead
		of "/tmp" for temporary files.
		Continuing on the cc/ld backend: simple .c code is generated,
		the compiler and linker are called, etc.
		Adding detection of host architecture to the configure script
		(again), and adding icache invalidation support (only
		implemented for Alpha hosts so far).
20070625	Simplifying the program counter sampling mechanism.
20070626	Removing the cc/ld native code generation stuff, program
		counter sampling, etc; it would not have worked well in the
		general case.
20070627	Removing everything related to native code generation.
20070629	Removing the (practically unusable) support for multiple
		emulations. (The single emulation allowed now still supports
		multiple simultaneous machines, as before.)
		Beginning on PCCTWO and M88K interrupts.
20070723	Adding a dummy skeleton for emulation of M32R processors.
20070901	Fixing a warning found by "gcc version 4.3.0 20070817
		(experimental)" on amd64.
20070905	Removing some more traces of the old "multiple emulations"
		code.
		Also looking in /usr/local/include and /usr/local/lib for
		X11 libs, when running configure.
20070909	Minor updates to the guest OS install instructions, in
		preparation for the NetBSD 4.0 release.
20070918	More testing of NetBSD 4.0 RC1.
1 /*
2 * Copyright (C) 2003-2007 Anders Gavare. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *
28 * $Id: ps2_bios.c,v 1.7 2007/06/17 23:32:20 debug Exp $
29 *
30 * COMMENT: Playstation 2 SIFBIOS emulation
31 */
32
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <sys/types.h>
37 #include <sys/time.h>
38 #include <sys/resource.h>
39
40 #include "console.h"
41 #include "cpu.h"
42 #include "cpu_mips.h"
43 #include "machine.h"
44 #include "memory.h"
45
46
47 extern int quiet_mode;
48
49
50 /*
51 * playstation2_sifbios_emul():
52 */
53 int playstation2_sifbios_emul(struct cpu *cpu)
54 {
55 int callnr;
56
57 callnr = cpu->cd.mips.gpr[MIPS_GPR_A0];
58
59 switch (callnr) {
60 case 0: /* getver() */
61 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0x200; /* TODO */
62 break;
63 case 1: /* halt(int mode) */
64 debug("[ SIFBIOS halt(0x%"PRIx64") ]\n",
65 (uint64_t) cpu->cd.mips.gpr[MIPS_GPR_A1]);
66 cpu->running = 0;
67 break;
68 case 2: /* setdve(int mode) */
69 debug("[ SIFBIOS setdve(0x%"PRIx64") ]\n",
70 (uint64_t) cpu->cd.mips.gpr[MIPS_GPR_A1]);
71 break;
72 case 3: /* putchar(int ch) */
73 /* debug("[ SIFBIOS putchar(0x%x) ]\n",
74 (char)cpu->cd.mips.gpr[MIPS_GPR_A1]); */
75 console_putchar(cpu->machine->main_console_handle,
76 cpu->cd.mips.gpr[MIPS_GPR_A1]);
77 break;
78 case 4: /* getchar() */
79 /* This is untested. TODO */
80 /* debug("[ SIFBIOS getchar() ]\n"; */
81 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0;
82 if (console_charavail(cpu->machine->main_console_handle))
83 cpu->cd.mips.gpr[MIPS_GPR_V0] = console_readchar(
84 cpu->machine->main_console_handle);
85 break;
86 case 16: /* dma_init() */
87 debug("[ SIFBIOS dma_init() ]\n");
88 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
89 break;
90 case 17: /* dma_exit() */
91 debug("[ SIFBIOS dma_exit() ]\n");
92 break;
93 case 32: /* cmd_init() */
94 debug("[ SIFBIOS cmd_init() ]\n");
95 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
96 break;
97 case 33: /* cmd_exit() */
98 debug("[ SIFBIOS cmd_exit() ]\n");
99 break;
100 case 48:
101 debug("[ SIFBIOS rpc_init(): TODO ]\n");
102 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
103 break;
104 case 49:
105 debug("[ SIFBIOS rpc_exit(): TODO ]\n");
106 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
107 break;
108 case 51:
109 debug("[ SIFBIOS rpc_bind(): TODO ]\n");
110 cpu->cd.mips.gpr[MIPS_GPR_V0] = 1; /* TODO */
111 break;
112 case 64:
113 fatal("[ SIFBIOS SBR_IOPH_INIT(0x%"PRIx32",0x%"PRIx32",0x%"
114 PRIx32"): TODO ]\n",
115 (uint32_t) cpu->cd.mips.gpr[MIPS_GPR_A1],
116 (uint32_t) cpu->cd.mips.gpr[MIPS_GPR_A2],
117 (uint32_t) cpu->cd.mips.gpr[MIPS_GPR_A3]);
118
119 /*
120 * This is really really ugly: TODO
121 *
122 * Linux and NetBSD seem to work, but it's an ugly hack.
123 * This should really be a callback thingy...
124 *
125 * NetBSD has a done-word which should be set to 1.
126 * Linux has one done-word which should be set to 1, and
127 * one which should be set to 0.
128 *
129 * The code as it is right now probably overwrites stuff in
130 * memory that shouldn't be touched. Not good.
131 *
132 * Linux: err = sbios_rpc(SBR_IOPH_INIT, NULL, &result);
133 * err should be 0 (just as NetBSD),
134 * and result should be set to 0 as well.
135 */
136 {
137 uint32_t tmpaddr;
138
139 tmpaddr = load_32bit_word(cpu,
140 cpu->cd.mips.gpr[MIPS_GPR_A1] + 0);
141 fatal(" +0: %08x\n", tmpaddr);
142 tmpaddr = load_32bit_word(cpu,
143 cpu->cd.mips.gpr[MIPS_GPR_A1] + 4);
144 fatal(" +4: %08x\n", tmpaddr);
145 tmpaddr = load_32bit_word(cpu,
146 cpu->cd.mips.gpr[MIPS_GPR_A1] + 8);
147 fatal(" +8: %08x\n", tmpaddr);
148 tmpaddr = load_32bit_word(cpu,
149 cpu->cd.mips.gpr[MIPS_GPR_A1] + 12);
150 fatal(" +12: %08x\n", tmpaddr);
151
152 /* TODO: This is probably netbsd specific */
153 tmpaddr = load_32bit_word(cpu,
154 cpu->cd.mips.gpr[MIPS_GPR_A1] + 12);
155 fatal("tmpaddr 1 = 0x%08x\n", tmpaddr);
156
157 /* "done" word for NetBSD: */
158 store_32bit_word(cpu, tmpaddr, 1);
159 /* "done" word A for Linux: */
160 store_32bit_word(cpu, tmpaddr + 4, 1);
161 /* "done" word B for Linux: */
162 store_32bit_word(cpu,
163 cpu->cd.mips.gpr[MIPS_GPR_A1] + 0, 0);
164 }
165 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0;
166 break;
167 case 65:
168 fatal("[ SIFBIOS alloc iop heap(0x"PRIx32") ]\n",
169 (uint32_t)cpu->cd.mips.gpr[MIPS_GPR_A1]);
170
171 /*
172 * Linux uses this to allocate "heap" for the OHCI USB
173 * controller.
174 *
175 * TODO: This naïve implementation does not allow for a
176 * "free iop heap" function: :-/
177 */
178
179 {
180 uint32_t tmpaddr;
181 static uint32_t return_addr = 0x1000;
182 /* 0xbc000000; */
183 uint32_t size;
184
185 tmpaddr = load_32bit_word(cpu,
186 cpu->cd.mips.gpr[MIPS_GPR_A1] + 0);
187 fatal(" +0: %08x (result should be placed here)\n",
188 tmpaddr);
189 tmpaddr = load_32bit_word(cpu,
190 cpu->cd.mips.gpr[MIPS_GPR_A1] + 4);
191 fatal(" +4: %08x (*arg)\n", tmpaddr);
192 size = load_32bit_word(cpu, tmpaddr + 0);
193 fatal(" size = %08x\n", size);
194 tmpaddr = load_32bit_word(cpu,
195 cpu->cd.mips.gpr[MIPS_GPR_A1] + 8);
196 fatal(" +8: %08x (*func (void *, int))\n", tmpaddr);
197 tmpaddr = load_32bit_word(cpu,
198 cpu->cd.mips.gpr[MIPS_GPR_A1] + 12);
199 fatal(" +12: %08x (*para)\n", tmpaddr);
200
201 /* TODO: This is probably netbsd specific */
202 tmpaddr = load_32bit_word(cpu,
203 cpu->cd.mips.gpr[MIPS_GPR_A1] + 12);
204 fatal("tmpaddr 1 = 0x%08x\n", tmpaddr);
205
206 /* "done" word for NetBSD: */
207 store_32bit_word(cpu, tmpaddr, 1);
208 /* "done" word A for Linux: */
209 store_32bit_word(cpu, tmpaddr + 4, 1);
210
211 /* Result: */
212 store_32bit_word(cpu,
213 cpu->cd.mips.gpr[MIPS_GPR_A1] + 0, return_addr);
214
215 return_addr += size;
216 /* Round up to next page: */
217 return_addr += 4095;
218 return_addr &= ~4095;
219 }
220 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0;
221 break;
222 case 66:
223 debug("[ SIFBIOS iopmem_free(): TODO ]\n");
224 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
225 break;
226 default:
227 quiet_mode = 0;
228 cpu_register_dump(cpu->machine, cpu, 1, 0x1);
229 printf("\n");
230 fatal("Playstation 2 SIFBIOS emulation: "
231 "unimplemented call nr 0x%x\n", callnr);
232 cpu->running = 0;
233 }
234
235 return 1;
236 }
237
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