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Diffstat (limited to 'src/devices/bus/vme/mzr8300.cpp')
-rw-r--r-- | src/devices/bus/vme/mzr8300.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/devices/bus/vme/mzr8300.cpp b/src/devices/bus/vme/mzr8300.cpp new file mode 100644 index 00000000000..d97e9c58e19 --- /dev/null +++ b/src/devices/bus/vme/mzr8300.cpp @@ -0,0 +1,194 @@ +// license:BSD-3-Clause +// copyright-holders:Joakim Larsson Edstrom +/*************************************************************************** + * + * Mizar VME8300 rev G 3U VME slave slot device + * + * 23/09/2015 + * + * This device was drycoded based on OS9 boot strap code on a Mizar mz8105 board + * which expects to find a SIO on the VME bus + photos of a Mizar 8300 board on Ebay + * I have found no formal documents for this board so far, so needs verification. + * + * || + * || + * || + * || + * ||____________________________________________________________ ___ + * \+++====|| U2|AM26LS32| | NEC | |74LS04N||74LS645 ||_| | + * \=/- o|| +--------+ | D7201C | ++-----+++----------+| | | + * | | || +-------+ +--------------------+ | | |SN74LS374N|| | | + * | | || U1| xxx | ____________________ | | +----------+| | | + * | | || +-------+ | NEC | |AMD | |SN74LS374N|| | | + * | | || | 7201C | |AM9513++----------+| | | + * | | || K10 +--------------------+ | APC ||PAL14L8 || |VME| + * | |==|| +-------+ K5 _______ | |+-----------+| | | + * | |==|| |MC1488P| K4 |SN74S38|| STC ||PAL20L8 || |P1 | + * | | || ++-------+--------+-+------++| |+-----------+| | | + * | | || K2 |AM26LS32|AM26LS32| 74S74 | |_____| |SN74LS244N|| | | + * | | || +--------+--------+--------+_______ +----------+| | | + * | | || | 74S74 | 74F85 | | | | + * | | || +-------+--------++-------++-------+ +----------+| | | + * /=\- o||J1 K1 U4| xxx | xxx | 74LS164| K6 |AM25LS2521|| | | + * /+++====|| J2 +-------+--------+--------+--------+ +----------+|_| | + * ||Rev G U3| MC1488| MC1488 | 74LS161| 74F85 | K8 | |___| + * ||-----------+-------+----------------------------------------- + * || + * || + * + * + * Misc links about this board: + * http://www.ebay.com/itm/MIZAR-INC-8300-0-01-REV-J-INTERFACE-CONTROL-BOARD-W-RIBBON-AND-PLATE-/231508658429?hash=item35e6fdc8fd + * + * Description + * ------------ + * The Mizar mz8300 is a Quad Serial board. + * + * - Single High (3U) VME Slave board + * - Two upd7201 SIO Serial Input/Ouput + * - One AM9513 STC System Timing Controller + * + * Address Map (just guesses based on driver software behaviours) + * -------------------------------------------------------------------------- + * Local VME Decscription + * ------------------------------------------------------------------------- + * n/a 0xff0000 0xff0003 mzr8105.c Bootstrap expects to find a + * UPD7201 serial device here - configurable! + * -------------------------------------------------------------------------- + * + * Interrupt sources MVME + * ---------------------------------------------------------- + * Description Device Lvl IRQ VME board + * /Board Vector Address + * ---------------------------------------------------------- + * On board Sources + * + * Off board Sources (other VME boards) + * + * ---------------------------------------------------------- + * + * DMAC Channel Assignments + * ---------------------------------------------------------- + * Channel + * ---------------------------------------------------------- + * + * TODO: + * - Setup a working address map (STARTED) + * - Get documentation for the board + * - Add VME bus interface + * - Hook up a CPU board that supports this board (mzr8105.c) + * - Get terminal working through this device over the VME interface + * + ****************************************************************************/ + +#include "emu.h" +#include "mzr8300.h" + +#include "bus/rs232/rs232.h" + +#define VERBOSE (0) // (LOG_GENERAL) +//#define LOG_OUTPUT_FUNC osd_printf_info +#include "logmacro.h" + + +#ifdef _MSC_VER +#define FUNCNAME __func__ +#else +#define FUNCNAME __PRETTY_FUNCTION__ +#endif + + +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** + +DEFINE_DEVICE_TYPE(VME_MZR8300, vme_mzr8300_card_device, "mzr8300", "Mizar 8300") + +/* These values are borrowed just to get the terminal going and should be replaced + * once a proper serial board hardware (ie MZ 8300) is found and emulated. */ + + +//------------------------------------------------- +// device_add_mconfig - add device configuration +//------------------------------------------------- + +void vme_mzr8300_card_device::device_add_mconfig(machine_config &config) +{ + UPD7201(config, m_sio[0], XTAL(4'000'000)); + m_sio[0]->out_txdb_callback().set("rs232p1", FUNC(rs232_port_device::write_txd)); + m_sio[0]->out_dtrb_callback().set("rs232p1", FUNC(rs232_port_device::write_dtr)); + m_sio[0]->out_rtsb_callback().set("rs232p1", FUNC(rs232_port_device::write_rts)); + + UPD7201(config, m_sio[1], XTAL(4'000'000)); + + rs232_port_device &rs232p1(RS232_PORT(config, "rs232p1", default_rs232_devices, "terminal")); + rs232p1.rxd_handler().set(m_sio[0], FUNC(upd7201_device::rxb_w)); + rs232p1.cts_handler().set(m_sio[0], FUNC(upd7201_device::ctsb_w)); + + AM9513(config, m_stc, 4_MHz_XTAL); + m_stc->out1_cb().set(m_sio[0], FUNC(upd7201_device::rxca_w)); + m_stc->out1_cb().append(m_sio[0], FUNC(upd7201_device::txca_w)); + m_stc->out2_cb().set(m_sio[0], FUNC(upd7201_device::rxcb_w)); + m_stc->out2_cb().append(m_sio[0], FUNC(upd7201_device::txcb_w)); + m_stc->out3_cb().set(m_sio[1], FUNC(upd7201_device::rxca_w)); + m_stc->out3_cb().append(m_sio[1], FUNC(upd7201_device::txca_w)); + m_stc->out4_cb().set(m_sio[1], FUNC(upd7201_device::rxcb_w)); + m_stc->out4_cb().append(m_sio[1], FUNC(upd7201_device::txcb_w)); +} + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +vme_mzr8300_card_device::vme_mzr8300_card_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) + : device_t(mconfig, type, tag, owner, clock) + , device_vme_card_interface(mconfig, *this) + , m_sio(*this, "sio%u", 0U) + , m_stc(*this, "stc") +{ + LOG("%s %s\n", tag, FUNCNAME); +} + +vme_mzr8300_card_device::vme_mzr8300_card_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : + vme_mzr8300_card_device(mconfig, VME_MZR8300, tag, owner, clock) +{ +} + +void vme_mzr8300_card_device::device_start() +{ + LOG("%s %s\n", tag(), FUNCNAME); + + /* Setup r/w handlers for first SIO in A16 */ + vme_space(vme::AM_29).install_readwrite_handler(0, 1, // Channel B - Data + read8smo_delegate(m_sio[0], FUNC(z80sio_device::db_r)), + write8smo_delegate(m_sio[0], FUNC(z80sio_device::db_w)), 0x00ff); + vme_space(vme::AM_29).install_readwrite_handler(2, 3, // Channel B - Control + read8smo_delegate(m_sio[0], FUNC(z80sio_device::cb_r)), + write8smo_delegate(m_sio[0], FUNC(z80sio_device::cb_w)), 0x00ff); + vme_space(vme::AM_29).install_readwrite_handler(4, 5, // Channel A - Data + read8smo_delegate(m_sio[0], FUNC(z80sio_device::da_r)), + write8smo_delegate(m_sio[0], FUNC(z80sio_device::da_w)), 0x00ff); + vme_space(vme::AM_29).install_readwrite_handler(6, 7, // Channel A - Control + read8smo_delegate(m_sio[0], FUNC(z80sio_device::ca_r)), + write8smo_delegate(m_sio[0], FUNC(z80sio_device::ca_w)), 0x00ff); + vme_space(vme::AM_29).install_readwrite_handler(0x10, 0x13, // Am9513 + read8sm_delegate(m_stc, FUNC(am9513_device::read8)), + write8sm_delegate(m_stc, FUNC(am9513_device::write8)), 0x00ff); +} + +void vme_mzr8300_card_device::device_reset() +{ + LOG("%s %s\n", tag(), FUNCNAME); +} + +#if 0 +uint8_t vme_mzr8300_card_device::read8(offs_t offset){ + LOG("%s()\n", FUNCNAME); + return (uint8_t) 0; +} + +void vme_mzr8300_card_device::write8(offs_t offset, uint8_t data){ + LOG("%s()\n", FUNCNAME); +} +#endif |