src/devices/bus_isa.c

/*
 *  Copyright (C) 2005-2007  Anders Gavare.  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright  
 *     notice, this list of conditions and the following disclaimer in the 
 *     documentation and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE   
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 *   
 *
 *  $Id: bus_isa.c,v 1.20 2007/08/29 20:36:49 debug Exp $
 *  
 *  COMMENT: Generic ISA bus framework
 *
 *  This is not a normal device, but it can be used as a quick way of adding
 *  most of the common legacy ISA devices to a machine.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define BUS_ISA_C

#include "bus_isa.h"
#include "device.h"
#include "devices.h"
#include "diskimage.h"
#include "interrupt.h"
#include "machine.h"
#include "misc.h"


/*
 *  isa_interrupt_common():
 */
void isa_interrupt_common(struct bus_isa_data *d, int old_isa_assert)
{
        int new_isa_assert, x;

        /*  Any interrupt assertions on PIC2 go to irq 2 on PIC1  */
        /*  (TODO: don't hardcode this here)  */
        if (d->pic2->irr & ~d->pic2->ier)
                d->pic1->irr |= 0x04;
        else
                d->pic1->irr &= ~0x04;

        /*  printf("ISA: irr=%02x%02x ier=%02x%02x\n",
            d->pic2->irr, d->pic1->irr, d->pic2->ier, d->pic1->ier);  */

        new_isa_assert = d->pic1->irr & ~d->pic1->ier;

        if (old_isa_assert == new_isa_assert)
                return;

        if (!new_isa_assert) {
                INTERRUPT_DEASSERT(d->irq);
                return;
        }

        for (x=0; x<16; x++) {
                if (x == 2)
                        continue;

                if (x < 8 && (d->pic1->irr & ~d->pic1->ier & (1 << x)))
                        break;

                if (x >= 8 && (d->pic2->irr & ~d->pic2->ier & (1 << (x&7))))
                        break;
        }

        *d->ptr_to_last_int = x;

        INTERRUPT_ASSERT(d->irq);
}


/*
 *  isa_interrupt_assert():
 *
 *  Called whenever an ISA device asserts an interrupt (0..15).
 */
void isa_interrupt_assert(struct interrupt *interrupt)
{
        struct bus_isa_data *d = interrupt->extra;
        int old_isa_assert, line = interrupt->line;
        int mask = 1 << (line & 7);

        old_isa_assert = d->pic1->irr & ~d->pic1->ier;

        if (line < 8)
                d->pic1->irr |= mask;
        else if (d->pic2 != NULL)
                d->pic2->irr |= mask;

        isa_interrupt_common(d, old_isa_assert);
}


/*
 *  isa_interrupt_deassert():
 *
 *  Called whenever an ISA device deasserts an interrupt (0..15).
 */
void isa_interrupt_deassert(struct interrupt *interrupt)
{
        struct bus_isa_data *d = interrupt->extra;
        int line = interrupt->line, mask = 1 << (line & 7);
        int old_irr1 = d->pic1->irr, old_isa_assert;

        old_isa_assert = old_irr1 & ~d->pic1->ier;

        if (line < 8)
                d->pic1->irr &= ~mask;
        else if (d->pic2 != NULL)
                d->pic2->irr &= ~mask;

        /*  If IRQ 0 has been cleared, then this is a timer interrupt.
            Let's ack it here:  */
        if (old_irr1 & 1 && !(d->pic1->irr & 1) &&
            d->ptr_to_pending_timer_interrupts != NULL &&
            (*d->ptr_to_pending_timer_interrupts) > 0)
                (*d->ptr_to_pending_timer_interrupts) --;

        isa_interrupt_common(d, old_isa_assert);
}


/*
 *  bus_isa_init():
 *
 *  Flags are zero or more of the following, ORed together:
 *
 *  BUS_ISA_EXTERNAL_PIC        Don't register/use isa_interrupt_*().
 *  BUS_ISA_IDE0                Include wdc0.
 *  BUS_ISA_IDE1                Include wdc1.
 *  BUS_ISA_FDC                 Include a floppy controller. (Dummy.)
 *  BUS_ISA_VGA                 Include old-style (non-PCI) VGA. (*1)
 *  BUS_ISA_VGA_FORCE           Include VGA even when running without X11. (*2)
 *  BUS_ISA_PCKBC_FORCE_USE     Always assume keyboard console, not serial. (*3)
 *  BUS_ISA_PCKBC_NONPCSTYLE    Don't set the pc-style flag for the keyboard.
 *  BUS_ISA_NO_SECOND_PIC       Only useful for 8086 XT (pre-AT) emulation. :-)
 *  BUS_ISA_LPTBASE_3BC         Set lptbase to 0x3bc instead of 0x378.
 *
 *  (*1) For machines with a PCI bus, this flag should not be used. Instead, a
 *       PCI VGA card should be added to the PCI bus.
 *
 *  (*2) For machines where it is easy to select VGA vs serial console during
 *       boot, this flag should not be used. Machines that "always" boot up
 *       in VGA console mode should have it set.
 *
 *  (*3) Similar to *2 above; machines that always boot up with VGA console
 *       should have this flag set, so that the keyboard is always used.
 *
 *  The interrupt_base_path is the name of the bus, CPU, or controller onto
 *  which this ISA bus will be attached, e.g. "machine[0].lca" or
 *  "machine[0].cpu[0].pic1".
 */
struct bus_isa_data *bus_isa_init(struct machine *machine,
        char *interrupt_base_path, uint32_t bus_isa_flags,
        uint64_t isa_portbase, uint64_t isa_membase)
{
        struct bus_isa_data *d;
        char tmpstr[300], tmpstr2[300];
        int wdc0_irq = 14, wdc1_irq = 15;
        int i, tmp_handle, kbd_in_use;
        int lptbase = 0x378;

        CHECK_ALLOCATION(d = malloc(sizeof(struct bus_isa_data)));
        memset(d, 0, sizeof(struct bus_isa_data));

        d->isa_portbase = isa_portbase;
        d->isa_membase  = isa_membase;

        if (!(bus_isa_flags & BUS_ISA_EXTERNAL_PIC)) {
                /*  Connect to the interrupt which we're interrupting
                    at (usually a CPU):  */
                INTERRUPT_CONNECT(interrupt_base_path, d->irq);

                /*  Register the 16 possible ISA interrupts:  */
                for (i=0; i<16; i++) {
                        struct interrupt template;
                        char name[300];
                        snprintf(name, sizeof(name),
                            "%s.isa.%i", interrupt_base_path, i);
                        memset(&template, 0, sizeof(template));
                        template.line = i;
                        template.name = name;
                        template.extra = d;
                        template.interrupt_assert = isa_interrupt_assert;
                        template.interrupt_deassert = isa_interrupt_deassert;
                        interrupt_handler_register(&template);
                }
        }

        kbd_in_use = ((bus_isa_flags & BUS_ISA_PCKBC_FORCE_USE) ||
            (machine->x11_md.in_use))? 1 : 0;

        if (machine->machine_type == MACHINE_PREP) {
                /*  PReP with obio controller has both WDCs on irq 13!  */
                wdc0_irq = wdc1_irq = 13;
        }

        if (!(bus_isa_flags & BUS_ISA_EXTERNAL_PIC)) {
                snprintf(tmpstr, sizeof(tmpstr), "8259 irq=%s addr=0x%llx",
                    interrupt_base_path, (long long)(isa_portbase + 0x20));
                d->pic1 = machine->isa_pic_data.pic1 =
                    device_add(machine, tmpstr);
                d->ptr_to_pending_timer_interrupts =
                    machine->isa_pic_data.pending_timer_interrupts;
                d->ptr_to_last_int = &machine->isa_pic_data.last_int;

                if (bus_isa_flags & BUS_ISA_NO_SECOND_PIC)
                        bus_isa_flags &= ~BUS_ISA_NO_SECOND_PIC;
                else {
                        snprintf(tmpstr, sizeof(tmpstr),
                            "8259 irq=%s.isa.2 addr=0x%llx",
                            interrupt_base_path,(long long)(isa_portbase+0xa0));
                        d->pic2 = machine->isa_pic_data.pic2 =
                            device_add(machine, tmpstr);
                }
        } else {
                bus_isa_flags &= ~BUS_ISA_EXTERNAL_PIC;
        }

        snprintf(tmpstr, sizeof(tmpstr), "8253 irq=%s.isa.%i addr=0x%llx "
            "in_use=0", interrupt_base_path, 0,
            (long long)(isa_portbase + 0x40));
        device_add(machine, tmpstr);

        snprintf(tmpstr, sizeof(tmpstr), "pccmos irq=%s.isa.%i addr=0x%llx",
            interrupt_base_path, 8, (long long)(isa_portbase + 0x70));
        device_add(machine, tmpstr);

        snprintf(tmpstr, sizeof(tmpstr), "ns16550 irq=%s.isa.%i addr=0x%llx "
            "name2=tty0 in_use=%i", interrupt_base_path, 4,
            (long long)(isa_portbase + 0x3f8), 1 - kbd_in_use);
        machine->main_console_handle = (size_t)device_add(machine, tmpstr);

        snprintf(tmpstr, sizeof(tmpstr), "ns16550 irq=%s.isa.%i addr=0x%llx "
            "name2=tty1 in_use=0", interrupt_base_path, 3,
            (long long)(isa_portbase + 0x2f8));
        device_add(machine, tmpstr);

        if (bus_isa_flags & BUS_ISA_LPTBASE_3BC) {
                bus_isa_flags &= ~BUS_ISA_LPTBASE_3BC;
                lptbase = 0x3bc;
        }

        snprintf(tmpstr, sizeof(tmpstr), "lpt irq=%s.isa.%i addr=0x%llx "
            "name2=lpt in_use=0", interrupt_base_path, 7,
            (long long)(isa_portbase + lptbase));
        device_add(machine, tmpstr);

        if (bus_isa_flags & BUS_ISA_IDE0) {
                bus_isa_flags &= ~BUS_ISA_IDE0;
                snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%s.isa.%i "
                    "addr=0x%llx", interrupt_base_path, wdc0_irq,
                    (long long)(isa_portbase + 0x1f0));
                if (diskimage_exist(machine, 0, DISKIMAGE_IDE) ||
                    diskimage_exist(machine, 1, DISKIMAGE_IDE))
                        device_add(machine, tmpstr);
        }

        if (bus_isa_flags & BUS_ISA_IDE1) {
                bus_isa_flags &= ~BUS_ISA_IDE1;
                snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%s.isa.%i "
                    "addr=0x%llx", interrupt_base_path, wdc1_irq,
                    (long long)(isa_portbase + 0x170));
                if (diskimage_exist(machine, 2, DISKIMAGE_IDE) ||
                    diskimage_exist(machine, 3, DISKIMAGE_IDE))
                        device_add(machine, tmpstr);
        }

        if (bus_isa_flags & BUS_ISA_FDC) {
                bus_isa_flags &= ~BUS_ISA_FDC;
                snprintf(tmpstr, sizeof(tmpstr), "fdc irq=%s.isa.%i "
                    "addr=0x%llx", interrupt_base_path, 6,
                    (long long)(isa_portbase + 0x3f0));
                device_add(machine, tmpstr);
        }

        if (bus_isa_flags & BUS_ISA_VGA) {
                if (machine->x11_md.in_use || bus_isa_flags & BUS_ISA_VGA_FORCE)
                        dev_vga_init(machine, machine->memory,
                            isa_membase + 0xa0000, isa_portbase + 0x3c0,
                            machine->machine_name);
                bus_isa_flags &= ~(BUS_ISA_VGA | BUS_ISA_VGA_FORCE);
        }

        snprintf(tmpstr, sizeof(tmpstr), "%s.isa.1", interrupt_base_path);
        snprintf(tmpstr2, sizeof(tmpstr2), "%s.isa.12", interrupt_base_path);
        tmp_handle = dev_pckbc_init(machine, machine->memory,
            isa_portbase + 0x60, PCKBC_8042, tmpstr, tmpstr2,
            kbd_in_use, bus_isa_flags & BUS_ISA_PCKBC_NONPCSTYLE? 0 : 1);

        if (kbd_in_use)
                machine->main_console_handle = tmp_handle;

        bus_isa_flags &= ~(BUS_ISA_PCKBC_NONPCSTYLE | BUS_ISA_PCKBC_FORCE_USE);

        if (bus_isa_flags != 0)
                fatal("WARNING! bus_isa(): unimplemented bus_isa_flags 0x%x\n",
                    bus_isa_flags);

        return d;
}

1	dpavlin	20	/*
2	dpavlin	34	* Copyright (C) 2005-2007 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	44	* $Id: bus_isa.c,v 1.20 2007/08/29 20:36:49 debug Exp $
29	dpavlin	20	*
30	dpavlin	42	* COMMENT: Generic ISA bus framework
31			*
32			* This is not a normal device, but it can be used as a quick way of adding
33			* most of the common legacy ISA devices to a machine.
34	dpavlin	20	*/
35
36			#include <stdio.h>
37			#include <stdlib.h>
38			#include <string.h>
39
40	dpavlin	22	#define BUS_ISA_C
41
42	dpavlin	20	#include "bus_isa.h"
43			#include "device.h"
44			#include "devices.h"
45			#include "diskimage.h"
46	dpavlin	34	#include "interrupt.h"
47	dpavlin	20	#include "machine.h"
48			#include "misc.h"
49
50
51			/*
52	dpavlin	34	* isa_interrupt_common():
53	dpavlin	22	*/
54	dpavlin	34	void isa_interrupt_common(struct bus_isa_data *d, int old_isa_assert)
55	dpavlin	22	{
56	dpavlin	34	int new_isa_assert, x;
57	dpavlin	22
58	dpavlin	34	/* Any interrupt assertions on PIC2 go to irq 2 on PIC1 */
59			/* (TODO: don't hardcode this here) */
60			if (d->pic2->irr & ~d->pic2->ier)
61			d->pic1->irr \|= 0x04;
62			else
63			d->pic1->irr &= ~0x04;
64
65			/* printf("ISA: irr=%02x%02x ier=%02x%02x\n",
66			d->pic2->irr, d->pic1->irr, d->pic2->ier, d->pic1->ier); */
67
68			new_isa_assert = d->pic1->irr & ~d->pic1->ier;
69
70			if (old_isa_assert == new_isa_assert)
71			return;
72
73			if (!new_isa_assert) {
74			INTERRUPT_DEASSERT(d->irq);
75			return;
76			}
77
78			for (x=0; x<16; x++) {
79			if (x == 2)
80			continue;
81
82			if (x < 8 && (d->pic1->irr & ~d->pic1->ier & (1 << x)))
83			break;
84
85			if (x >= 8 && (d->pic2->irr & ~d->pic2->ier & (1 << (x&7))))
86			break;
87			}
88
89			*d->ptr_to_last_int = x;
90
91			INTERRUPT_ASSERT(d->irq);
92	dpavlin	22	}
93
94
95			/*
96	dpavlin	34	* isa_interrupt_assert():
97			*
98			* Called whenever an ISA device asserts an interrupt (0..15).
99			*/
100			void isa_interrupt_assert(struct interrupt *interrupt)
101			{
102			struct bus_isa_data *d = interrupt->extra;
103			int old_isa_assert, line = interrupt->line;
104			int mask = 1 << (line & 7);
105
106			old_isa_assert = d->pic1->irr & ~d->pic1->ier;
107
108			if (line < 8)
109			d->pic1->irr \|= mask;
110			else if (d->pic2 != NULL)
111			d->pic2->irr \|= mask;
112
113			isa_interrupt_common(d, old_isa_assert);
114			}
115
116
117			/*
118			* isa_interrupt_deassert():
119			*
120			* Called whenever an ISA device deasserts an interrupt (0..15).
121			*/
122			void isa_interrupt_deassert(struct interrupt *interrupt)
123			{
124			struct bus_isa_data *d = interrupt->extra;
125			int line = interrupt->line, mask = 1 << (line & 7);
126			int old_irr1 = d->pic1->irr, old_isa_assert;
127
128			old_isa_assert = old_irr1 & ~d->pic1->ier;
129
130			if (line < 8)
131			d->pic1->irr &= ~mask;
132			else if (d->pic2 != NULL)
133			d->pic2->irr &= ~mask;
134
135			/* If IRQ 0 has been cleared, then this is a timer interrupt.
136			Let's ack it here: */
137			if (old_irr1 & 1 && !(d->pic1->irr & 1) &&
138			d->ptr_to_pending_timer_interrupts != NULL &&
139			(*d->ptr_to_pending_timer_interrupts) > 0)
140			(*d->ptr_to_pending_timer_interrupts) --;
141
142			isa_interrupt_common(d, old_isa_assert);
143			}
144
145
146			/*
147	dpavlin	22	* bus_isa_init():
148	dpavlin	20	*
149			* Flags are zero or more of the following, ORed together:
150			*
151	dpavlin	34	* BUS_ISA_EXTERNAL_PIC Don't register/use isa_interrupt_*().
152	dpavlin	20	* BUS_ISA_IDE0 Include wdc0.
153			* BUS_ISA_IDE1 Include wdc1.
154			* BUS_ISA_FDC Include a floppy controller. (Dummy.)
155			* BUS_ISA_VGA Include old-style (non-PCI) VGA. (*1)
156			* BUS_ISA_VGA_FORCE Include VGA even when running without X11. (*2)
157			* BUS_ISA_PCKBC_FORCE_USE Always assume keyboard console, not serial. (*3)
158			* BUS_ISA_PCKBC_NONPCSTYLE Don't set the pc-style flag for the keyboard.
159			* BUS_ISA_NO_SECOND_PIC Only useful for 8086 XT (pre-AT) emulation. :-)
160	dpavlin	22	* BUS_ISA_LPTBASE_3BC Set lptbase to 0x3bc instead of 0x378.
161	dpavlin	20	*
162			* (*1) For machines with a PCI bus, this flag should not be used. Instead, a
163			* PCI VGA card should be added to the PCI bus.
164			*
165			* (*2) For machines where it is easy to select VGA vs serial console during
166			* boot, this flag should not be used. Machines that "always" boot up
167			* in VGA console mode should have it set.
168			*
169			* (3) Similar to 2 above; machines that always boot up with VGA console
170			* should have this flag set, so that the keyboard is always used.
171	dpavlin	34	*
172			* The interrupt_base_path is the name of the bus, CPU, or controller onto
173	dpavlin	44	* which this ISA bus will be attached, e.g. "machine[0].lca" or
174			* "machine[0].cpu[0].pic1".
175	dpavlin	20	*/
176	dpavlin	22	struct bus_isa_data bus_isa_init(struct machine machine,
177	dpavlin	34	char *interrupt_base_path, uint32_t bus_isa_flags,
178			uint64_t isa_portbase, uint64_t isa_membase)
179	dpavlin	20	{
180	dpavlin	42	struct bus_isa_data *d;
181	dpavlin	34	char tmpstr[300], tmpstr2[300];
182	dpavlin	20	int wdc0_irq = 14, wdc1_irq = 15;
183	dpavlin	34	int i, tmp_handle, kbd_in_use;
184	dpavlin	22	int lptbase = 0x378;
185	dpavlin	20
186	dpavlin	42	CHECK_ALLOCATION(d = malloc(sizeof(struct bus_isa_data)));
187	dpavlin	22	memset(d, 0, sizeof(struct bus_isa_data));
188	dpavlin	34
189	dpavlin	22	d->isa_portbase = isa_portbase;
190			d->isa_membase = isa_membase;
191
192	dpavlin	34	if (!(bus_isa_flags & BUS_ISA_EXTERNAL_PIC)) {
193			/* Connect to the interrupt which we're interrupting
194			at (usually a CPU): */
195			INTERRUPT_CONNECT(interrupt_base_path, d->irq);
196
197			/* Register the 16 possible ISA interrupts: */
198			for (i=0; i<16; i++) {
199			struct interrupt template;
200			char name[300];
201			snprintf(name, sizeof(name),
202			"%s.isa.%i", interrupt_base_path, i);
203			memset(&template, 0, sizeof(template));
204			template.line = i;
205			template.name = name;
206			template.extra = d;
207			template.interrupt_assert = isa_interrupt_assert;
208			template.interrupt_deassert = isa_interrupt_deassert;
209			interrupt_handler_register(&template);
210			}
211			}
212
213	dpavlin	20	kbd_in_use = ((bus_isa_flags & BUS_ISA_PCKBC_FORCE_USE) \|\|
214	dpavlin	42	(machine->x11_md.in_use))? 1 : 0;
215	dpavlin	20
216			if (machine->machine_type == MACHINE_PREP) {
217			/* PReP with obio controller has both WDCs on irq 13! */
218			wdc0_irq = wdc1_irq = 13;
219			}
220
221	dpavlin	34	if (!(bus_isa_flags & BUS_ISA_EXTERNAL_PIC)) {
222			snprintf(tmpstr, sizeof(tmpstr), "8259 irq=%s addr=0x%llx",
223			interrupt_base_path, (long long)(isa_portbase + 0x20));
224			d->pic1 = machine->isa_pic_data.pic1 =
225			device_add(machine, tmpstr);
226			d->ptr_to_pending_timer_interrupts =
227			machine->isa_pic_data.pending_timer_interrupts;
228			d->ptr_to_last_int = &machine->isa_pic_data.last_int;
229	dpavlin	20
230	dpavlin	34	if (bus_isa_flags & BUS_ISA_NO_SECOND_PIC)
231			bus_isa_flags &= ~BUS_ISA_NO_SECOND_PIC;
232			else {
233			snprintf(tmpstr, sizeof(tmpstr),
234			"8259 irq=%s.isa.2 addr=0x%llx",
235			interrupt_base_path,(long long)(isa_portbase+0xa0));
236			d->pic2 = machine->isa_pic_data.pic2 =
237			device_add(machine, tmpstr);
238			}
239			} else {
240			bus_isa_flags &= ~BUS_ISA_EXTERNAL_PIC;
241	dpavlin	20	}
242
243	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "8253 irq=%s.isa.%i addr=0x%llx "
244			"in_use=0", interrupt_base_path, 0,
245			(long long)(isa_portbase + 0x40));
246	dpavlin	20	device_add(machine, tmpstr);
247
248	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "pccmos irq=%s.isa.%i addr=0x%llx",
249			interrupt_base_path, 8, (long long)(isa_portbase + 0x70));
250	dpavlin	20	device_add(machine, tmpstr);
251
252	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "ns16550 irq=%s.isa.%i addr=0x%llx "
253			"name2=tty0 in_use=%i", interrupt_base_path, 4,
254			(long long)(isa_portbase + 0x3f8), 1 - kbd_in_use);
255	dpavlin	20	machine->main_console_handle = (size_t)device_add(machine, tmpstr);
256
257	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "ns16550 irq=%s.isa.%i addr=0x%llx "
258			"name2=tty1 in_use=0", interrupt_base_path, 3,
259			(long long)(isa_portbase + 0x2f8));
260	dpavlin	20	device_add(machine, tmpstr);
261
262	dpavlin	22	if (bus_isa_flags & BUS_ISA_LPTBASE_3BC) {
263			bus_isa_flags &= ~BUS_ISA_LPTBASE_3BC;
264			lptbase = 0x3bc;
265			}
266
267	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "lpt irq=%s.isa.%i addr=0x%llx "
268			"name2=lpt in_use=0", interrupt_base_path, 7,
269			(long long)(isa_portbase + lptbase));
270	dpavlin	20	device_add(machine, tmpstr);
271
272			if (bus_isa_flags & BUS_ISA_IDE0) {
273			bus_isa_flags &= ~BUS_ISA_IDE0;
274	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%s.isa.%i "
275			"addr=0x%llx", interrupt_base_path, wdc0_irq,
276			(long long)(isa_portbase + 0x1f0));
277	dpavlin	20	if (diskimage_exist(machine, 0, DISKIMAGE_IDE) \|\|
278			diskimage_exist(machine, 1, DISKIMAGE_IDE))
279			device_add(machine, tmpstr);
280			}
281
282			if (bus_isa_flags & BUS_ISA_IDE1) {
283			bus_isa_flags &= ~BUS_ISA_IDE1;
284	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%s.isa.%i "
285			"addr=0x%llx", interrupt_base_path, wdc1_irq,
286			(long long)(isa_portbase + 0x170));
287	dpavlin	20	if (diskimage_exist(machine, 2, DISKIMAGE_IDE) \|\|
288			diskimage_exist(machine, 3, DISKIMAGE_IDE))
289			device_add(machine, tmpstr);
290			}
291
292			if (bus_isa_flags & BUS_ISA_FDC) {
293			bus_isa_flags &= ~BUS_ISA_FDC;
294	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "fdc irq=%s.isa.%i "
295			"addr=0x%llx", interrupt_base_path, 6,
296			(long long)(isa_portbase + 0x3f0));
297	dpavlin	20	device_add(machine, tmpstr);
298			}
299
300			if (bus_isa_flags & BUS_ISA_VGA) {
301	dpavlin	42	if (machine->x11_md.in_use \|\| bus_isa_flags & BUS_ISA_VGA_FORCE)
302	dpavlin	20	dev_vga_init(machine, machine->memory,
303			isa_membase + 0xa0000, isa_portbase + 0x3c0,
304			machine->machine_name);
305			bus_isa_flags &= ~(BUS_ISA_VGA \| BUS_ISA_VGA_FORCE);
306			}
307
308	dpavlin	34	snprintf(tmpstr, sizeof(tmpstr), "%s.isa.1", interrupt_base_path);
309			snprintf(tmpstr2, sizeof(tmpstr2), "%s.isa.12", interrupt_base_path);
310	dpavlin	20	tmp_handle = dev_pckbc_init(machine, machine->memory,
311	dpavlin	34	isa_portbase + 0x60, PCKBC_8042, tmpstr, tmpstr2,
312	dpavlin	20	kbd_in_use, bus_isa_flags & BUS_ISA_PCKBC_NONPCSTYLE? 0 : 1);
313
314			if (kbd_in_use)
315			machine->main_console_handle = tmp_handle;
316
317			bus_isa_flags &= ~(BUS_ISA_PCKBC_NONPCSTYLE \| BUS_ISA_PCKBC_FORCE_USE);
318
319			if (bus_isa_flags != 0)
320			fatal("WARNING! bus_isa(): unimplemented bus_isa_flags 0x%x\n",
321			bus_isa_flags);
322	dpavlin	22
323			return d;
324	dpavlin	20	}
325