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

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Revision 22 - (show annotations)
Mon Oct 8 16:19:37 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 7437 byte(s)
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1121 2006/02/18 21:03:08 debug Exp $
20051126	Cobalt and PReP now work with the 21143 NIC.
		Continuing on Alpha dyntrans things.
		Fixing some more left-shift-by-24 to unsigned.
20051127	Working on OpenFirmware emulation; major cleanup/redesign.
		Progress on MacPPC emulation: NetBSD detects two CPUs (when
		running with -n 2), framebuffer output (for text) works.
		Adding quick-hack Bandit PCI controller and "gc" interrupt
		controller for MacPPC.
20051128	Changing from a Bandit to a Uni-North controller for macppc.
		Continuing on OpenFirmware and MacPPC emulation in general
		(obio controller, and wdc attached to the obio seems to work).
20051129	More work on MacPPC emulation (adding a dummy ADB controller).
		Continuing the PCI bus cleanup (endianness and tag composition)
		and rewriting all PCI controllers' access functions.
20051130	Various minor PPC dyntrans optimizations.
		Manually inlining some parts of the framebuffer redraw routine.
		Slowly beginning the conversion of the old MIPS emulation into
		dyntrans (but this will take quite some time to get right).
		Generalizing quick_pc_to_pointers.
20051201	Documentation update (David Muse has made available a kernel
		which simplifies Debian/DECstation installation).
		Continuing on the ADB bus controller.
20051202	Beginning a rewrite of the Zilog serial controller (dev_zs).
20051203	Continuing on the zs rewrite (now called dev_z8530); conversion
		to devinit style.
		Reworking some of the input-only vs output-only vs input-output
		details of src/console.c, better warning messages, and adding
		a debug dump.
		Removing the concept of "device state"; it wasn't really used.
		Changing some debug output (-vv should now be used to show all
		details about devices and busses; not shown during normal
		startup anymore).
		Beginning on some SPARC instruction disassembly support.
20051204	Minor PPC updates (WALNUT skeleton stuff).
		Continuing on the MIPS dyntrans rewrite.
		More progress on the ADB controller (a keyboard is "detected"
		by NetBSD and OpenBSD).
		Downgrading OpenBSD/arc as a guest OS from "working" to
		"almost working" in the documentation.
		Progress on Algor emulation ("v3" PCI controller).
20051205	Minor updates.
20051207	Sorting devices according to address; this reduces complexity
		of device lookups from O(n) to O(log n) in memory_rw (but no
		real performance increase (yet) in experiments).
20051210	Beginning the work on native dyntrans backends (by making a
		simple skeleton; so far only for Alpha hosts).
20051211	Some very minor SPARC updates.
20051215	Fixing a bug in the MIPS mul (note: not mult) instruction,
		so it also works with non-64-bit emulation. (Thanks to Alec
		Voropay for noticing the problem.)
20051216	More work on the fake/empty/simple/skeleton/whatever backend;
		performance doesn't increase, so this isn't really worth it,
		but it was probably worth it to prepare for a real backend
		later.
20051219	More instr call statistics gathering and analysis stuff.
20051220	Another fix for MIPS 'mul'. Also converting mul and {d,}cl{o,z}
		to dyntrans.
		memory_ppc.c syntax error fix (noticed by Peter Valchev).
		Beginning to move out machines from src/machine.c into
		individual files in src/machines (in a way similar to the
		autodev system for devices).
20051222	Updating the documentation regarding NetBSD/pmax 3.0.
20051223	- " - NetBSD/cats 3.0.
20051225	- " - NetBSD/hpcmips 3.0.
20051226	Continuing on the machine registry redesign.
		Adding support for ARM rrx (33-bit rotate).
		Fixing some signed/unsigned issues (exposed by gcc -W).
20051227	Fixing the bug which prevented a NetBSD/prep 3.0 install kernel
		from starting (triggered when an mtmsr was the last instruction
		on a page). Unfortunately not enough to get the kernel to run
		as well as the 2.1 kernels did.
20051230	Some dyntrans refactoring.
20051231	Continuing on the machine registry redesign.
20060101-10	Continuing... moving more machines. Moving MD interrupt stuff
		from machine.c into a new src/machines/interrupts.c.
20060114	Adding various mvmeppc machine skeletons.
20060115	Continuing on mvme* stuff. NetBSD/mvmeppc prints boot messages
		(for MVME1600) and reaches the root device prompt, but no
		specific hardware devices are emulated yet.
20060116	Minor updates to the mvme1600 emulation mode; the Eagle PCI bus
		seems to work without much modification, and a 21143 can be
		detected, interrupts might work (but untested so far).
		Adding a fake MK48Txx (mkclock) device, for NetBSD/mvmeppc.
20060121	Adding an aux control register for ARM. (A BIG thank you to
		Olivier Houchard for tracking down this bug.)
20060122	Adding more ARM instructions (smulXY), and dev_iq80321_7seg.
20060124	Adding disassembly of more ARM instructions (mia*, mra/mar),
		and some semi-bogus XScale and i80321 registers.
20060201-02	Various minor updates. Moving the last machines out of
		machine.c.
20060204	Adding a -c command line option, for running debugger commands
		before the simulation starts, but after all files have been
		loaded.
		Minor iq80321-related updates.
20060209	Minor hacks (DEVINIT macro, etc).
		Preparing for the generalization of the 64-bit dyntrans address
		translation subsystem.
20060216	Adding ARM ldrd (double-register load).
20060217	Continuing on various ARM-related stuff.
20060218	More progress on the ATA/wdc emulation for NetBSD/iq80321.
		NetBSD/evbarm can now be installed :-)  Updating the docs, etc.
		Continuing on Algor emulation.

==============  RELEASE 0.3.8  ==============


1 /*
2 * Copyright (C) 2003-2006 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 1.2 2006/02/16 05:57:10 debug Exp $
29 *
30 * 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 "misc.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%llx) ]\n",
65 (long long)cpu->cd.mips.gpr[MIPS_GPR_A1]);
66 cpu->running = 0;
67 cpu->dead = 1;
68 break;
69 case 2: /* setdve(int mode) */
70 debug("[ SIFBIOS setdve(0x%llx) ]\n",
71 (long long)cpu->cd.mips.gpr[MIPS_GPR_A1]);
72 break;
73 case 3: /* putchar(int ch) */
74 /* debug("[ SIFBIOS putchar(0x%x) ]\n",
75 (char)cpu->cd.mips.gpr[MIPS_GPR_A1]); */
76 console_putchar(cpu->machine->main_console_handle,
77 cpu->cd.mips.gpr[MIPS_GPR_A1]);
78 break;
79 case 4: /* getchar() */
80 /* This is untested. TODO */
81 /* debug("[ SIFBIOS getchar() ]\n"; */
82 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0;
83 if (console_charavail(cpu->machine->main_console_handle))
84 cpu->cd.mips.gpr[MIPS_GPR_V0] = console_readchar(
85 cpu->machine->main_console_handle);
86 break;
87 case 16: /* dma_init() */
88 debug("[ SIFBIOS dma_init() ]\n");
89 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
90 break;
91 case 17: /* dma_exit() */
92 debug("[ SIFBIOS dma_exit() ]\n");
93 break;
94 case 32: /* cmd_init() */
95 debug("[ SIFBIOS cmd_init() ]\n");
96 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
97 break;
98 case 33: /* cmd_exit() */
99 debug("[ SIFBIOS cmd_exit() ]\n");
100 break;
101 case 48:
102 debug("[ SIFBIOS rpc_init(): TODO ]\n");
103 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
104 break;
105 case 49:
106 debug("[ SIFBIOS rpc_exit(): TODO ]\n");
107 cpu->cd.mips.gpr[MIPS_GPR_V0] = 0; /* TODO */
108 break;
109 case 51:
110 debug("[ SIFBIOS rpc_bind(): TODO ]\n");
111 cpu->cd.mips.gpr[MIPS_GPR_V0] = 1; /* TODO */
112 break;
113 case 64:
114 fatal("[ SIFBIOS SBR_IOPH_INIT(0x%x,0x%x,0x%x): TODO ]\n",
115 (int)cpu->cd.mips.gpr[MIPS_GPR_A1],
116 (int)cpu->cd.mips.gpr[MIPS_GPR_A2],
117 (int)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%x) ]\n",
169 (int)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 cpu->dead = 1;
234 }
235
236 return 1;
237 }
238

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