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Diffstat (limited to 'src/devices/bus/isa/aha1542.cpp')
-rw-r--r-- | src/devices/bus/isa/aha1542.cpp | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/src/devices/bus/isa/aha1542.cpp b/src/devices/bus/isa/aha1542.cpp deleted file mode 100644 index b044c88b171..00000000000 --- a/src/devices/bus/isa/aha1542.cpp +++ /dev/null @@ -1,201 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Darkstar -/********************************************************************** - * - * Adaptec AHA-1542{,C,CF} SCSI Controller - * - **********************************************************************/ - -/* - PCB layout - ---------- - Floppy SCSI - +-----------+ +------------------+ +- - +-----+-----------+-+------------------+--+ - | | - | DIPSW DS1 |\ - | +-----+ | | - | | | Y1 +---+ TRM TRM | | - | | U3 | |U5 | |S| - | U8 +-----+ +---+ |C| - | +---+ +------+ +-------+ |S| - | |U13| |U15 | Y2 | | |I| - | +---+ +------+ | | | | - | |U16 | |U17 | | | - | +------+ +-------+ |/ - +-----------------------------------------+ - ||||||||| ||||||||||||||||||||||||| | - - - DIPSW sw1 - sw8 - U3 Intel chip labelled "AHA-1542CF/552800-01 D/9346", probably FDC (82077) - U5 Z84C0010VEC - U8 EEPROM(?) labelled 545120A - U13 CXK5864CM-10LL (64kbit SRAM) - U15 M27C256B labelled "ADAPTEC INC/553801-00 C/MCODE 563D/(C) 1993" - U16 M27C256B labelled "ADAPTEC INC/553601-00 C/BIOS C38D/(C) 1993" - U17 AIC-7970Q - Y1 XTAL SRX4054 93-38 - Y2 XTAL SRX4053 93-40 - TRM Dallas DS2107AS (SCSI termination) - DS1 LED - -*/ - -/* - * The PCB has a couple of DIP switches: - * - * sw1 on enable termination - * off software-controlled termination - * - * sw2 sw3 sw4 I/O Port - * off off off 0x330 - 0x333 (default) - * on off off 0x334 - 0x337 - * off on off 0x230 - 0x233 - * on on off 0x234 - 0x237 - * off off on 0x130 - 0x133 - * on off on 0x134 - 0x137 - * off on on reserved - * on on on reserved - * - * sw5 on disable floppy interface - * off enable floppy interface - * - * sw6 sw7 sw8 BIOS base address - * off off off 0xdc000 (default) - * on off off 0xd8000 - * off on off 0xd4000 - * on on off 0xd0000 - * off off on 0xcc000 - * on off on 0xc8000 - * off on on reserved - * on on on BIOS disabled - * - * source: http://download.adaptec.com/pdfs/installation_guides/1540cfig.pdf - */ - -#include "emu.h" -#include "aha1542.h" -#include "cpu/z80/z80.h" - -// I/O Port interface -// READ Port x+0: STATUS -// WRITE Port x+0: CONTROL -// -// READ Port x+1: DATA -// WRITE Port x+1: COMMAND -// -// READ Port x+2: INTERRUPT STATUS -// WRITE Port x+2: (undefined?) -// -// R/W Port x+3: (undefined) - -// READ STATUS flags -#define STAT_STST 0x80 // self-test in progress -#define STAT_DIAGF 0x40 // internal diagnostic failure -#define STAT_INIT 0x20 // mailbox initialization required -#define STAT_IDLE 0x10 // HBA is idle -#define STAT_CDFULL 0x08 // Command/Data output port is full -#define STAT_DFULL 0x04 // Data input port is full -#define STAT_INVCMD 0x01 // Invalid command - -// READ INTERRUPT STATUS flags -#define INTR_ANY 0x80 // any interrupt -#define INTR_SRCD 0x08 // SCSI reset detected -#define INTR_HACC 0x04 // HA command complete -#define INTR_MBOA 0x02 // MBO empty -#define INTR_MBIF 0x01 // MBI full - -// WRITE CONTROL commands -#define CTRL_HRST 0x80 // Hard reset -#define CTRL_SRST 0x40 // Soft reset -#define CTRL_IRST 0x20 // interrupt reset -#define CTRL_SCRST 0x10 // SCSI bus reset - -// READ/WRITE DATA commands -#define CMD_NOP 0x00 // No operation -#define CMD_MBINIT 0x01 // mailbox initialization -#define CMD_START_SCSI 0x02 // Start SCSI command -#define CMD_BIOSCMD 0x03 // undocumented BIOS conmmand (shadow RAM etc.) -#define CMD_INQUIRY 0x04 // Adapter inquiry -#define CMD_EMBOI 0x05 // enable Mailbox Out Interrupt -#define CMD_SELTIMEOUT 0x06 // Set SEL timeout -#define CMD_BUSON_TIME 0x07 // set bus-On time -#define CMD_BUSOFF_TIME 0x08 // set bus-off time -#define CMD_DMASPEED 0x09 // set ISA DMA speed -#define CMD_RETDEVS 0x0a // return installed devices -#define CMD_RETCONF 0x0b // return configuration data -#define CMD_TARGET 0x0c // set HBA to target mode -#define CMD_RETSETUP 0x0d // return setup data -#define CMD_ECHO 0x1f // ECHO command data (NetBSD says it is 0x1e) - -// these are for 1541C only: -#define CMD_RETDEVSHI 0x23 // return devices 8-15 (from NetBSD) -#define CMD_EXTBIOS 0x28 // return extended BIOS information -#define CMD_MBENABLE 0x29 // set mailbox interface enable - -DEFINE_DEVICE_TYPE(AHA1542, aha1542_device, "aha1542", "AHA1542 SCSI Controller") - -#define Z84C0010_TAG "u5" - -READ8_MEMBER( aha1542_device::aha1542_r ) -{ - logerror("%s aha1542_r(): offset=%d\n", machine().describe_context(), offset); - return 0xff; -} - -WRITE8_MEMBER( aha1542_device::aha1542_w ) -{ - logerror("%s aha1542_w(): offset=%d data=0x%02x\n", machine().describe_context(), offset, data); -} - -//------------------------------------------------- -// ROM( aha1542 ) -//------------------------------------------------- - -ROM_START( aha1542 ) - ROM_REGION( 0x8000, "aha1542", 0 ) - ROM_LOAD( "553601-00.u16", 0x0000, 0x8000, CRC(ab22fc02) SHA1(f9f783e0272fc14ba3de32316997f1f6cadc67d0) ) /* Adaptec 1540CF/1542CF BIOS v2.01 */ - - ROM_REGION( 0x8000, Z84C0010_TAG, 0 ) - ROM_LOAD( "553801-00.u15", 0x0000, 0x8000, CRC(7824397e) SHA1(35bc2c8fab31aad3190a478f2dc8f3a72958cf04) ) /* ADAPTEC, INC MCODE */ -ROM_END - -void aha1542_device::z84c0010_mem(address_map &map) -{ - map(0x0000, 0x7fff).rom().region(Z84C0010_TAG, 0); - map(0x8000, 0x800f).noprw(); // something is mapped there - map(0x9000, 0xafff).ram(); // 2kb RAM chip - map(0xe000, 0xe0ff).ram(); // probably PC<->Z80 communication area - map(0xb000, 0xb000).noprw(); // something? -} - -const tiny_rom_entry *aha1542_device::device_rom_region() const -{ - return ROM_NAME( aha1542 ); -} - -void aha1542_device::device_add_mconfig(machine_config &config) -{ - z80_device &cpu(Z80(config, Z84C0010_TAG, XTAL(12'000'000))); - cpu.set_addrmap(AS_PROGRAM, &aha1542_device::z84c0010_mem); -} - -aha1542_device::aha1542_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : - device_t(mconfig, AHA1542, tag, owner, clock), - device_isa16_card_interface(mconfig, *this) -{ -} - -void aha1542_device::device_start() -{ - set_isa_device(); - m_isa->install_rom(this, 0xdc000, 0xdffff, "aha1542", "aha1542"); - m_isa->install_device(0x330, 0x333, read8_delegate(FUNC( aha1542_device::aha1542_r ), this), - write8_delegate(FUNC( aha1542_device::aha1542_w ), this) ); -} - - -void aha1542_device::device_reset() -{ -} |