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

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Revision 44 - (hide annotations)
Mon Oct 8 16:22:56 2007 UTC (16 years, 7 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 dpavlin 14 /*
2 dpavlin 34 * Copyright (C) 2003-2007 Anders Gavare. All rights reserved.
3 dpavlin 14 *
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 dpavlin 44 * $Id: ps2_bios.c,v 1.7 2007/06/17 23:32:20 debug Exp $
29 dpavlin 14 *
30 dpavlin 44 * COMMENT: Playstation 2 SIFBIOS emulation
31 dpavlin 14 */
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 dpavlin 42 #include "memory.h"
45 dpavlin 14
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 dpavlin 24 debug("[ SIFBIOS halt(0x%"PRIx64") ]\n",
65     (uint64_t) cpu->cd.mips.gpr[MIPS_GPR_A1]);
66 dpavlin 14 cpu->running = 0;
67     break;
68     case 2: /* setdve(int mode) */
69 dpavlin 24 debug("[ SIFBIOS setdve(0x%"PRIx64") ]\n",
70     (uint64_t) cpu->cd.mips.gpr[MIPS_GPR_A1]);
71 dpavlin 14 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 dpavlin 24 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 dpavlin 14
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 dpavlin 24 fatal("[ SIFBIOS alloc iop heap(0x"PRIx32") ]\n",
169     (uint32_t)cpu->cd.mips.gpr[MIPS_GPR_A1]);
170 dpavlin 14
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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