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/* |
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* Copyright (C) 2005 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: bus_isa.c,v 1.5 2005/11/21 11:10:11 debug Exp $ |
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* |
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* Generic ISA bus. This is not a normal device, but it can be used as a quick |
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* way of adding most of the common legacy ISA devices to a machine. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "bus_isa.h" |
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#include "device.h" |
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#include "devices.h" |
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#include "diskimage.h" |
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#include "machine.h" |
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#include "misc.h" |
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|
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|
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/* |
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* bus_isa(): |
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* |
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* Flags are zero or more of the following, ORed together: |
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* |
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* BUS_ISA_IDE0 Include wdc0. |
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* BUS_ISA_IDE1 Include wdc1. |
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* BUS_ISA_FDC Include a floppy controller. (Dummy.) |
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* BUS_ISA_VGA Include old-style (non-PCI) VGA. (*1) |
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* BUS_ISA_VGA_FORCE Include VGA even when running without X11. (*2) |
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* BUS_ISA_PCKBC_FORCE_USE Always assume keyboard console, not serial. (*3) |
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* BUS_ISA_PCKBC_NONPCSTYLE Don't set the pc-style flag for the keyboard. |
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* BUS_ISA_NO_SECOND_PIC Only useful for 8086 XT (pre-AT) emulation. :-) |
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* |
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* (*1) For machines with a PCI bus, this flag should not be used. Instead, a |
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* PCI VGA card should be added to the PCI bus. |
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* |
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* (*2) For machines where it is easy to select VGA vs serial console during |
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* boot, this flag should not be used. Machines that "always" boot up |
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* in VGA console mode should have it set. |
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* |
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* (*3) Similar to *2 above; machines that always boot up with VGA console |
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* should have this flag set, so that the keyboard is always used. |
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*/ |
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void bus_isa(struct machine *machine, uint32_t bus_isa_flags, |
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uint64_t isa_portbase, uint64_t isa_membase, int isa_irqbase, |
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int reassert_irq) |
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{ |
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char tmpstr[300]; |
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int wdc0_irq = 14, wdc1_irq = 15; |
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int tmp_handle, kbd_in_use; |
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|
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kbd_in_use = ((bus_isa_flags & BUS_ISA_PCKBC_FORCE_USE) || |
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(machine->use_x11))? 1 : 0; |
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|
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if (machine->machine_type == MACHINE_PREP) { |
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/* PReP with obio controller has both WDCs on irq 13! */ |
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wdc0_irq = wdc1_irq = 13; |
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} |
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|
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snprintf(tmpstr, sizeof(tmpstr), "8259 irq=%i addr=0x%llx", |
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reassert_irq, (long long)(isa_portbase + 0x20)); |
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machine->isa_pic_data.pic1 = device_add(machine, tmpstr); |
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|
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if (bus_isa_flags & BUS_ISA_NO_SECOND_PIC) |
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bus_isa_flags &= ~BUS_ISA_NO_SECOND_PIC; |
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else { |
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snprintf(tmpstr, sizeof(tmpstr), "8259 irq=%i addr=0x%llx", |
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reassert_irq, (long long)(isa_portbase + 0xa0)); |
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machine->isa_pic_data.pic2 = device_add(machine, tmpstr); |
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} |
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|
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snprintf(tmpstr, sizeof(tmpstr), "8253 irq=%i addr=0x%llx in_use=0", |
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isa_irqbase + 0, (long long)(isa_portbase + 0x40)); |
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device_add(machine, tmpstr); |
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|
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snprintf(tmpstr, sizeof(tmpstr), "pccmos addr=0x%llx", |
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(long long)(isa_portbase + 0x70)); |
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device_add(machine, tmpstr); |
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|
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snprintf(tmpstr, sizeof(tmpstr), "ns16550 irq=%i addr=0x%llx name2=" |
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"tty0 in_use=%i", isa_irqbase+4, (long long)(isa_portbase + 0x3f8), |
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1 - kbd_in_use); |
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machine->main_console_handle = (size_t)device_add(machine, tmpstr); |
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|
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snprintf(tmpstr, sizeof(tmpstr), "ns16550 irq=%i addr=0x%llx name2=tty1" |
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" in_use=0", isa_irqbase +3, (long long)(isa_portbase + 0x2f8)); |
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device_add(machine, tmpstr); |
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|
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snprintf(tmpstr, sizeof(tmpstr), "lpt irq=%i addr=0x%llx name2=lpt" |
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" in_use=0", isa_irqbase + 7, (long long)(isa_portbase + 0x378)); |
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device_add(machine, tmpstr); |
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|
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if (bus_isa_flags & BUS_ISA_IDE0) { |
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bus_isa_flags &= ~BUS_ISA_IDE0; |
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snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%i addr=0x%llx", |
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isa_irqbase + wdc0_irq, (long long)(isa_portbase + 0x1f0)); |
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if (diskimage_exist(machine, 0, DISKIMAGE_IDE) || |
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diskimage_exist(machine, 1, DISKIMAGE_IDE)) |
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device_add(machine, tmpstr); |
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} |
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|
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if (bus_isa_flags & BUS_ISA_IDE1) { |
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bus_isa_flags &= ~BUS_ISA_IDE1; |
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snprintf(tmpstr, sizeof(tmpstr), "wdc irq=%i addr=0x%llx", |
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isa_irqbase + wdc1_irq, (long long)(isa_portbase + 0x170)); |
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if (diskimage_exist(machine, 2, DISKIMAGE_IDE) || |
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diskimage_exist(machine, 3, DISKIMAGE_IDE)) |
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device_add(machine, tmpstr); |
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} |
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|
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if (bus_isa_flags & BUS_ISA_FDC) { |
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bus_isa_flags &= ~BUS_ISA_FDC; |
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snprintf(tmpstr, sizeof(tmpstr), "fdc irq=%i addr=0x%llx", |
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isa_irqbase + 6, (long long)(isa_portbase + 0x3f0)); |
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device_add(machine, tmpstr); |
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} |
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|
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if (bus_isa_flags & BUS_ISA_VGA) { |
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if (machine->use_x11 || bus_isa_flags & BUS_ISA_VGA_FORCE) |
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dev_vga_init(machine, machine->memory, |
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isa_membase + 0xa0000, isa_portbase + 0x3c0, |
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machine->machine_name); |
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bus_isa_flags &= ~(BUS_ISA_VGA | BUS_ISA_VGA_FORCE); |
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} |
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|
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tmp_handle = dev_pckbc_init(machine, machine->memory, |
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isa_portbase + 0x60, PCKBC_8042, isa_irqbase + 1, isa_irqbase + 12, |
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kbd_in_use, bus_isa_flags & BUS_ISA_PCKBC_NONPCSTYLE? 0 : 1); |
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|
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if (kbd_in_use) |
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machine->main_console_handle = tmp_handle; |
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|
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bus_isa_flags &= ~(BUS_ISA_PCKBC_NONPCSTYLE | BUS_ISA_PCKBC_FORCE_USE); |
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|
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if (bus_isa_flags != 0) |
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fatal("WARNING! bus_isa(): unimplemented bus_isa_flags 0x%x\n", |
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bus_isa_flags); |
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} |
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