| 1 |
/* |
| 2 |
* Copyright (C) 2005-2006 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: bus_isa.c,v 1.9 2006/01/16 01:45:27 debug Exp $ |
| 29 |
* |
| 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 |
#define BUS_ISA_C |
| 39 |
|
| 40 |
#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 |
* 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 |
* |
| 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 |
* BUS_ISA_LPTBASE_3BC Set lptbase to 0x3bc instead of 0x378. |
| 79 |
* |
| 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 |
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 |
{ |
| 94 |
struct bus_isa_data *d = malloc(sizeof(struct bus_isa_data)); |
| 95 |
char tmpstr[300]; |
| 96 |
int wdc0_irq = 14, wdc1_irq = 15; |
| 97 |
int tmp_handle, kbd_in_use; |
| 98 |
int lptbase = 0x378; |
| 99 |
|
| 100 |
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 |
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 |
if (bus_isa_flags & BUS_ISA_LPTBASE_3BC) { |
| 145 |
bus_isa_flags &= ~BUS_ISA_LPTBASE_3BC; |
| 146 |
lptbase = 0x3bc; |
| 147 |
} |
| 148 |
|
| 149 |
snprintf(tmpstr, sizeof(tmpstr), "lpt irq=%i addr=0x%llx name2=lpt" |
| 150 |
" in_use=0", isa_irqbase + 7, (long long)(isa_portbase + lptbase)); |
| 151 |
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 |
|
| 199 |
return d; |
| 200 |
} |
| 201 |
|
Parent Directory
| 
Revision Log