/[gxemul]/trunk/src/devices/bus_isa.c
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Annotation of /trunk/src/devices/bus_isa.c

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Revision 22 - (hide annotations)
Mon Oct 8 16:19:37 2007 UTC (16 years, 6 months ago) by dpavlin
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++ 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 dpavlin 20 /*
2 dpavlin 22 * Copyright (C) 2005-2006 Anders Gavare. All rights reserved.
3 dpavlin 20 *
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 22 * $Id: bus_isa.c,v 1.9 2006/01/16 01:45:27 debug Exp $
29 dpavlin 20 *
30     * Generic ISA bus. This is not a normal device, but it can be used as a quick
31     * way of adding most of the common legacy ISA devices to a machine.
32     */
33    
34     #include <stdio.h>
35     #include <stdlib.h>
36     #include <string.h>
37    
38 dpavlin 22 #define BUS_ISA_C
39    
40 dpavlin 20 #include "bus_isa.h"
41     #include "device.h"
42     #include "devices.h"
43     #include "diskimage.h"
44     #include "machine.h"
45     #include "misc.h"
46    
47    
48     /*
49 dpavlin 22 * bus_isa_debug_dump():
50     */
51     void bus_isa_debug_dump(void *extra)
52     {
53     struct bus_isa_data *d = (struct bus_isa_data *) extra;
54    
55     debug("isa:\n");
56     debug_indentation(DEBUG_INDENTATION);
57     debug("portbase: 0x%llx\n", (long long)d->isa_portbase);
58     debug("membase: 0x%llx\n", (long long)d->isa_membase);
59     debug("irqbase: %i\n", (int)d->isa_irqbase);
60     debug("reassert_irq: %i\n", (int)d->reassert_irq);
61     debug_indentation(-DEBUG_INDENTATION);
62     }
63    
64    
65     /*
66     * bus_isa_init():
67 dpavlin 20 *
68     * Flags are zero or more of the following, ORed together:
69     *
70     * BUS_ISA_IDE0 Include wdc0.
71     * BUS_ISA_IDE1 Include wdc1.
72     * BUS_ISA_FDC Include a floppy controller. (Dummy.)
73     * BUS_ISA_VGA Include old-style (non-PCI) VGA. (*1)
74     * BUS_ISA_VGA_FORCE Include VGA even when running without X11. (*2)
75     * BUS_ISA_PCKBC_FORCE_USE Always assume keyboard console, not serial. (*3)
76     * BUS_ISA_PCKBC_NONPCSTYLE Don't set the pc-style flag for the keyboard.
77     * BUS_ISA_NO_SECOND_PIC Only useful for 8086 XT (pre-AT) emulation. :-)
78 dpavlin 22 * BUS_ISA_LPTBASE_3BC Set lptbase to 0x3bc instead of 0x378.
79 dpavlin 20 *
80     * (*1) For machines with a PCI bus, this flag should not be used. Instead, a
81     * PCI VGA card should be added to the PCI bus.
82     *
83     * (*2) For machines where it is easy to select VGA vs serial console during
84     * boot, this flag should not be used. Machines that "always" boot up
85     * in VGA console mode should have it set.
86     *
87     * (*3) Similar to *2 above; machines that always boot up with VGA console
88     * should have this flag set, so that the keyboard is always used.
89     */
90 dpavlin 22 struct bus_isa_data *bus_isa_init(struct machine *machine,
91     uint32_t bus_isa_flags, uint64_t isa_portbase, uint64_t isa_membase,
92     int isa_irqbase, int reassert_irq)
93 dpavlin 20 {
94 dpavlin 22 struct bus_isa_data *d = malloc(sizeof(struct bus_isa_data));
95 dpavlin 20 char tmpstr[300];
96     int wdc0_irq = 14, wdc1_irq = 15;
97     int tmp_handle, kbd_in_use;
98 dpavlin 22 int lptbase = 0x378;
99 dpavlin 20
100 dpavlin 22 memset(d, 0, sizeof(struct bus_isa_data));
101     d->isa_portbase = isa_portbase;
102     d->isa_membase = isa_membase;
103     d->isa_irqbase = isa_irqbase;
104     d->reassert_irq = reassert_irq;
105     machine_bus_register(machine, "isa", bus_isa_debug_dump, d);
106    
107 dpavlin 20 kbd_in_use = ((bus_isa_flags & BUS_ISA_PCKBC_FORCE_USE) ||
108     (machine->use_x11))? 1 : 0;
109    
110     if (machine->machine_type == MACHINE_PREP) {
111     /* PReP with obio controller has both WDCs on irq 13! */
112     wdc0_irq = wdc1_irq = 13;
113     }
114    
115     snprintf(tmpstr, sizeof(tmpstr), "8259 irq=%i addr=0x%llx",
116     reassert_irq, (long long)(isa_portbase + 0x20));
117     machine->isa_pic_data.pic1 = device_add(machine, tmpstr);
118    
119     if (bus_isa_flags & BUS_ISA_NO_SECOND_PIC)
120     bus_isa_flags &= ~BUS_ISA_NO_SECOND_PIC;
121     else {
122     snprintf(tmpstr, sizeof(tmpstr), "8259 irq=%i addr=0x%llx",
123     reassert_irq, (long long)(isa_portbase + 0xa0));
124     machine->isa_pic_data.pic2 = device_add(machine, tmpstr);
125     }
126    
127     snprintf(tmpstr, sizeof(tmpstr), "8253 irq=%i addr=0x%llx in_use=0",
128     isa_irqbase + 0, (long long)(isa_portbase + 0x40));
129     device_add(machine, tmpstr);
130    
131     snprintf(tmpstr, sizeof(tmpstr), "pccmos addr=0x%llx",
132     (long long)(isa_portbase + 0x70));
133     device_add(machine, tmpstr);
134    
135     snprintf(tmpstr, sizeof(tmpstr), "ns16550 irq=%i addr=0x%llx name2="
136     "tty0 in_use=%i", isa_irqbase+4, (long long)(isa_portbase + 0x3f8),
137     1 - kbd_in_use);
138     machine->main_console_handle = (size_t)device_add(machine, tmpstr);
139    
140     snprintf(tmpstr, sizeof(tmpstr), "ns16550 irq=%i addr=0x%llx name2=tty1"
141     " in_use=0", isa_irqbase +3, (long long)(isa_portbase + 0x2f8));
142     device_add(machine, tmpstr);
143    
144 dpavlin 22 if (bus_isa_flags & BUS_ISA_LPTBASE_3BC) {
145     bus_isa_flags &= ~BUS_ISA_LPTBASE_3BC;
146     lptbase = 0x3bc;
147     }
148    
149 dpavlin 20 snprintf(tmpstr, sizeof(tmpstr), "lpt irq=%i addr=0x%llx name2=lpt"
150 dpavlin 22 " in_use=0", isa_irqbase + 7, (long long)(isa_portbase + lptbase));
151 dpavlin 20 device_add(machine, tmpstr);
152    
153     if (bus_isa_flags & BUS_ISA_IDE0) {
154     bus_isa_flags &= ~BUS_ISA_IDE0;
155     snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%i addr=0x%llx",
156     isa_irqbase + wdc0_irq, (long long)(isa_portbase + 0x1f0));
157     if (diskimage_exist(machine, 0, DISKIMAGE_IDE) ||
158     diskimage_exist(machine, 1, DISKIMAGE_IDE))
159     device_add(machine, tmpstr);
160     }
161    
162     if (bus_isa_flags & BUS_ISA_IDE1) {
163     bus_isa_flags &= ~BUS_ISA_IDE1;
164     snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%i addr=0x%llx",
165     isa_irqbase + wdc1_irq, (long long)(isa_portbase + 0x170));
166     if (diskimage_exist(machine, 2, DISKIMAGE_IDE) ||
167     diskimage_exist(machine, 3, DISKIMAGE_IDE))
168     device_add(machine, tmpstr);
169     }
170    
171     if (bus_isa_flags & BUS_ISA_FDC) {
172     bus_isa_flags &= ~BUS_ISA_FDC;
173     snprintf(tmpstr, sizeof(tmpstr), "fdc irq=%i addr=0x%llx",
174     isa_irqbase + 6, (long long)(isa_portbase + 0x3f0));
175     device_add(machine, tmpstr);
176     }
177    
178     if (bus_isa_flags & BUS_ISA_VGA) {
179     if (machine->use_x11 || bus_isa_flags & BUS_ISA_VGA_FORCE)
180     dev_vga_init(machine, machine->memory,
181     isa_membase + 0xa0000, isa_portbase + 0x3c0,
182     machine->machine_name);
183     bus_isa_flags &= ~(BUS_ISA_VGA | BUS_ISA_VGA_FORCE);
184     }
185    
186     tmp_handle = dev_pckbc_init(machine, machine->memory,
187     isa_portbase + 0x60, PCKBC_8042, isa_irqbase + 1, isa_irqbase + 12,
188     kbd_in_use, bus_isa_flags & BUS_ISA_PCKBC_NONPCSTYLE? 0 : 1);
189    
190     if (kbd_in_use)
191     machine->main_console_handle = tmp_handle;
192    
193     bus_isa_flags &= ~(BUS_ISA_PCKBC_NONPCSTYLE | BUS_ISA_PCKBC_FORCE_USE);
194    
195     if (bus_isa_flags != 0)
196     fatal("WARNING! bus_isa(): unimplemented bus_isa_flags 0x%x\n",
197     bus_isa_flags);
198 dpavlin 22
199     return d;
200 dpavlin 20 }
201    

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