// license:BSD-3-Clause // copyright-holders: Samuele Zannoli /*************************************************************************** fdc37c93x.h SMSC FDC37C93x Plug and Play Compatible Ultra I/O Controller ***************************************************************************/ #include "emu.h" #include "fdc37c93x.h" #include "machine/pckeybrd.h" #include "formats/naslite_dsk.h" DEFINE_DEVICE_TYPE(FDC37C93X, fdc37c93x_device, "fdc37c93x", "SMSC FDC37C93X Super I/O") fdc37c93x_device::fdc37c93x_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_isa16_card_interface(mconfig, *this) , mode(OperatingMode::Run) , config_key_step(0) , config_index(0) , logical_device(LogicalDevice::FDC) , last_dma_line(-1) , m_gp20_reset_callback(*this) , m_gp25_gatea20_callback(*this) , m_irq1_callback(*this) , m_irq8_callback(*this) , m_irq9_callback(*this) , m_txd1_callback(*this) , m_ndtr1_callback(*this) , m_nrts1_callback(*this) , m_txd2_callback(*this) , m_ndtr2_callback(*this) , m_nrts2_callback(*this) , floppy_controller_fdcdev(*this, "fdc") , pc_lpt_lptdev(*this, "lpt") , pc_serial1_comdev(*this, "uart_0") , pc_serial2_comdev(*this, "uart_1") , ds12885_rtcdev(*this, "rtc") , m_kbdc(*this, "pc_kbdc") , sysopt_pin(0) { memset(global_configuration_registers, 0, sizeof(global_configuration_registers)); global_configuration_registers[0x03] = 3; global_configuration_registers[0x20] = 2; global_configuration_registers[0x21] = 1; global_configuration_registers[0x24] = 4; memset(configuration_registers, 0, sizeof(configuration_registers)); configuration_registers[LogicalDevice::FDC][0x60] = 3; configuration_registers[LogicalDevice::FDC][0x61] = 0xf0; configuration_registers[LogicalDevice::FDC][0x70] = 6; configuration_registers[LogicalDevice::FDC][0x74] = 2; configuration_registers[LogicalDevice::FDC][0xf0] = 0xe; configuration_registers[LogicalDevice::FDC][0xf2] = 0xff; configuration_registers[LogicalDevice::IDE1][0x60] = 1; configuration_registers[LogicalDevice::IDE1][0x61] = 0xf0; configuration_registers[LogicalDevice::IDE1][0x62] = 3; configuration_registers[LogicalDevice::IDE1][0x63] = 0xf6; configuration_registers[LogicalDevice::IDE1][0x70] = 0xe; configuration_registers[LogicalDevice::Parallel][0x74] = 4; configuration_registers[LogicalDevice::Parallel][0xf0] = 0x3c; configuration_registers[LogicalDevice::RTC][0xf4] = 3; for (int n = 0xe0; n <= 0xed; n++) configuration_registers[LogicalDevice::AuxIO][n] = 1; for (int n = 0; n <= 8; n++) enabled_logical[n] = false; for (int n = 0; n < 4; n++) dreq_mapping[n] = -1; } fdc37c93x_device::fdc37c93x_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : fdc37c93x_device(mconfig, FDC37C93X, tag, owner, clock) { m_device_id = 0x02; m_device_rev = 0x01; } /* 0 FDC: 60,61 03f0 +(0-7) 1 IDE1: 60,61 01f0 task file +(0-7) 62,63 03f6 misc 2 IDE2: 60,61 ? task file +(0-7) 62,63 ? misc 3 LPT: 60,61 ? +(0-7) +400 +401 +402 4 SCI1: 60,61 ? +(0-7) 5 SCI2: 60,61 ? +(0-7) 6 RTC: fixed 0x60 +0 +1 7 KBD: fixed 0x70 +0 +4 8 aux: 60,61 ? gpa 62,63 ? gpw 8042 p20 gp20 reset 8042 p21 gp25 gatea20 */ void fdc37c93x_device::eop_w(int state) { // dma transfer finished if (last_dma_line < 0) return; switch (dreq_mapping[last_dma_line]) { case LogicalDevice::FDC: floppy_controller_fdcdev->tc_w(state == ASSERT_LINE); break; default: break; } //last_dma_line = -1; } uint8_t fdc37c93x_device::dack_r(int line) { // transferring data from device to memory using dma // read one byte from device last_dma_line = line; switch (dreq_mapping[line]) { case LogicalDevice::FDC: return floppy_controller_fdcdev->dma_r(); break; default: break; } return 0; } void fdc37c93x_device::dack_w(int line, uint8_t data) { // transferring data from memory to device using dma // write one byte to device last_dma_line = line; switch (dreq_mapping[line]) { case LogicalDevice::FDC: floppy_controller_fdcdev->dma_w(data); break; default: break; } } void fdc37c93x_device::request_irq(int irq, int state) { switch (irq) { case 1: m_irq1_callback(state); break; case 3: m_isa->irq3_w(state); break; case 4: m_isa->irq4_w(state); break; case 5: m_isa->irq5_w(state); break; case 6: m_isa->irq6_w(state); break; case 7: m_isa->irq7_w(state); break; case 8: m_irq8_callback(state); break; case 9: m_irq9_callback(state); break; case 10: m_isa->irq10_w(state); break; case 11: m_isa->irq11_w(state); break; case 12: m_isa->irq12_w(state); break; case 14: m_isa->irq14_w(state); break; case 15: m_isa->irq15_w(state); break; } } void fdc37c93x_device::request_dma(int dreq, int state) { switch (dreq) { case 0: m_isa->drq0_w(state); break; case 1: m_isa->drq1_w(state); break; case 2: m_isa->drq2_w(state); break; case 3: m_isa->drq3_w(state); break; } } uint16_t fdc37c93x_device::get_base_address(int logical, int index) { int position = index * 2 + 0x60; return ((uint16_t)configuration_registers[logical][position] << 8) + (uint16_t)configuration_registers[logical][position + 1]; } // internal device "logical" uses dma pin "dreq" void fdc37c93x_device::update_dreq_mapping(int dreq, int logical) { if ((dreq < 0) || (dreq >= 4)) return; for (int n = 0; n < 4; n++) if (dreq_mapping[n] == logical) dreq_mapping[n] = -1; dreq_mapping[dreq] = logical; } static void pc_hd_floppies(device_slot_interface &device) { device.option_add("525hd", FLOPPY_525_HD); device.option_add("35hd", FLOPPY_35_HD); device.option_add("525dd", FLOPPY_525_DD); device.option_add("35dd", FLOPPY_35_DD); } void fdc37c93x_device::floppy_formats(format_registration &fr) { fr.add_pc_formats(); fr.add(FLOPPY_NASLITE_FORMAT); } void fdc37c93x_device::device_add_mconfig(machine_config &config) { // floppy disc controller smc37c78_device &fdcdev(SMC37C78(config, floppy_controller_fdcdev, 24'000'000)); fdcdev.intrq_wr_callback().set(FUNC(fdc37c93x_device::irq_floppy_w)); fdcdev.drq_wr_callback().set(FUNC(fdc37c93x_device::drq_floppy_w)); FLOPPY_CONNECTOR(config, "fdc:0", pc_hd_floppies, "35hd", fdc37c93x_device::floppy_formats); FLOPPY_CONNECTOR(config, "fdc:1", pc_hd_floppies, "35hd", fdc37c93x_device::floppy_formats); // parallel port PC_LPT(config, pc_lpt_lptdev); pc_lpt_lptdev->irq_handler().set(FUNC(fdc37c93x_device::irq_parallel_w)); // serial ports NS16550(config, pc_serial1_comdev, XTAL(1'843'200)); pc_serial1_comdev->out_int_callback().set(FUNC(fdc37c93x_device::irq_serial1_w)); pc_serial1_comdev->out_tx_callback().set(FUNC(fdc37c93x_device::txd_serial1_w)); pc_serial1_comdev->out_dtr_callback().set(FUNC(fdc37c93x_device::dtr_serial1_w)); pc_serial1_comdev->out_rts_callback().set(FUNC(fdc37c93x_device::rts_serial1_w)); NS16550(config, pc_serial2_comdev, XTAL(1'843'200)); pc_serial2_comdev->out_int_callback().set(FUNC(fdc37c93x_device::irq_serial2_w)); pc_serial2_comdev->out_tx_callback().set(FUNC(fdc37c93x_device::txd_serial2_w)); pc_serial2_comdev->out_dtr_callback().set(FUNC(fdc37c93x_device::dtr_serial2_w)); pc_serial2_comdev->out_rts_callback().set(FUNC(fdc37c93x_device::rts_serial2_w)); // RTC ds12885_device &rtc(DS12885(config, "rtc")); rtc.irq().set(FUNC(fdc37c93x_device::irq_rtc_w)); rtc.set_century_index(0x32); // keyboard KBDC8042(config, m_kbdc); m_kbdc->set_keyboard_type(kbdc8042_device::KBDC8042_PS2); m_kbdc->set_interrupt_type(kbdc8042_device::KBDC8042_DOUBLE); m_kbdc->input_buffer_full_callback().set(FUNC(fdc37c93x_device::irq_keyboard_w)); m_kbdc->input_buffer_full_mouse_callback().set(FUNC(fdc37c93x_device::irq_mouse_w)); m_kbdc->system_reset_callback().set(FUNC(fdc37c93x_device::kbdp20_gp20_reset_w)); m_kbdc->gate_a20_callback().set(FUNC(fdc37c93x_device::kbdp21_gp25_gatea20_w)); m_kbdc->set_keyboard_tag("at_keyboard"); at_keyboard_device &at_keyb(AT_KEYB(config, "at_keyboard", pc_keyboard_device::KEYBOARD_TYPE::AT, 1)); at_keyb.keypress().set(m_kbdc, FUNC(kbdc8042_device::keyboard_w)); } void fdc37c93x_device::irq_floppy_w(int state) { if (enabled_logical[LogicalDevice::FDC] == false) return; request_irq(configuration_registers[LogicalDevice::FDC][0x70], state ? ASSERT_LINE : CLEAR_LINE); } void fdc37c93x_device::drq_floppy_w(int state) { if (enabled_logical[LogicalDevice::FDC] == false) return; request_dma(configuration_registers[LogicalDevice::FDC][0x74], state ? ASSERT_LINE : CLEAR_LINE); } void fdc37c93x_device::irq_parallel_w(int state) { if (enabled_logical[LogicalDevice::Parallel] == false) return; request_irq(configuration_registers[LogicalDevice::Parallel][0x70], state ? ASSERT_LINE : CLEAR_LINE); } void fdc37c93x_device::irq_serial1_w(int state) { if (enabled_logical[LogicalDevice::Serial1] == false) return; request_irq(configuration_registers[LogicalDevice::Serial1][0x70], state ? ASSERT_LINE : CLEAR_LINE); } void fdc37c93x_device::txd_serial1_w(int state) { if (enabled_logical[LogicalDevice::Serial1] == false) return; m_txd1_callback(state); } void fdc37c93x_device::dtr_serial1_w(int state) { if (enabled_logical[LogicalDevice::Serial1] == false) return; m_ndtr1_callback(state); } void fdc37c93x_device::rts_serial1_w(int state) { if (enabled_logical[LogicalDevice::Serial1] == false) return; m_nrts1_callback(state); } void fdc37c93x_device::irq_serial2_w(int state) { if (enabled_logical[LogicalDevice::Serial2] == false) return; request_irq(configuration_registers[LogicalDevice::Serial2][0x70], state ? ASSERT_LINE : CLEAR_LINE); } void fdc37c93x_device::txd_serial2_w(int state) { if (enabled_logical[LogicalDevice::Serial2] == false) return; m_txd2_callback(state); } void fdc37c93x_device::dtr_serial2_w(int state) { if (enabled_logical[LogicalDevice::Serial2] == false) return; m_ndtr2_callback(state); } void fdc37c93x_device::rts_serial2_w(int state) { if (enabled_logical[LogicalDevice::Serial2] == false) return; m_nrts2_callback(state); } void fdc37c93x_device::rxd1_w(int state) { pc_serial1_comdev->rx_w(state); } void fdc37c93x_device::ndcd1_w(int state) { pc_serial1_comdev->dcd_w(state); } void fdc37c93x_device::ndsr1_w(int state) { pc_serial1_comdev->dsr_w(state); } void fdc37c93x_device::nri1_w(int state) { pc_serial1_comdev->ri_w(state); } void fdc37c93x_device::ncts1_w(int state) { pc_serial1_comdev->cts_w(state); } void fdc37c93x_device::rxd2_w(int state) { pc_serial2_comdev->rx_w(state); } void fdc37c93x_device::ndcd2_w(int state) { pc_serial2_comdev->dcd_w(state); } void fdc37c93x_device::ndsr2_w(int state) { pc_serial2_comdev->dsr_w(state); } void fdc37c93x_device::nri2_w(int state) { pc_serial2_comdev->ri_w(state); } void fdc37c93x_device::ncts2_w(int state) { pc_serial2_comdev->cts_w(state); } void fdc37c93x_device::irq_rtc_w(int state) { if (enabled_logical[LogicalDevice::RTC] == false) return; request_irq(configuration_registers[LogicalDevice::RTC][0x70], state ? ASSERT_LINE : CLEAR_LINE); } void fdc37c93x_device::irq_keyboard_w(int state) { if (enabled_logical[LogicalDevice::Keyboard] == false) return; request_irq(configuration_registers[LogicalDevice::Keyboard][0x70], state ? ASSERT_LINE : CLEAR_LINE); } void fdc37c93x_device::irq_mouse_w(int state) { if (enabled_logical[LogicalDevice::Keyboard] == false) return; request_irq(configuration_registers[LogicalDevice::Keyboard][0x72], state ? ASSERT_LINE : CLEAR_LINE); } void fdc37c93x_device::kbdp21_gp25_gatea20_w(int state) { if (enabled_logical[LogicalDevice::Keyboard] == false) return; m_gp25_gatea20_callback(state); } void fdc37c93x_device::kbdp20_gp20_reset_w(int state) { if (enabled_logical[LogicalDevice::Keyboard] == false) return; m_gp20_reset_callback(state); } uint8_t fdc37c93x_device::read(offs_t offset) { if (offset == 0) { if (mode == OperatingMode::Run) return 0; return config_index; } else if (offset == 1) { if (mode == OperatingMode::Run) return 0; if (config_index < 0x30) return read_global_configuration_register(config_index); else return read_logical_configuration_register(config_index); } else return 0; } void fdc37c93x_device::write(offs_t offset, uint8_t data) { uint8_t byt; if (offset == 0) { byt = data & 0xff; if (mode == OperatingMode::Run) { if (byt != 0x55) return; config_key_step++; if (config_key_step > 1) { config_key_step = 0; mode = OperatingMode::Configuration; } } else { if (byt == 0xaa) { mode = OperatingMode::Run; return; } config_index = byt; } } else if (offset == 1) { if (mode == OperatingMode::Run) return; byt = data & 0xff; if (config_index < 0x30) write_global_configuration_register(config_index, byt); else write_logical_configuration_register(config_index, byt); } else return; } /* Map/unmap internal devices */ uint8_t fdc37c93x_device::disabled_read() { return 0xff; } void fdc37c93x_device::disabled_write(uint8_t data) { } void fdc37c93x_device::unmap_fdc(address_map &map) { //map(0x0, 0x0).rw(FUNC(fdc37c93x_device::disabled_read), FUNC(fdc37c93x_device::disabled_write)); //map(0x1, 0x1).rw(FUNC(fdc37c93x_device::disabled_read), FUNC(fdc37c93x_device::disabled_write)); map(0x2, 0x2).rw(FUNC(fdc37c93x_device::disabled_read), FUNC(fdc37c93x_device::disabled_write)); map(0x3, 0x3).rw(FUNC(fdc37c93x_device::disabled_read), FUNC(fdc37c93x_device::disabled_write)); map(0x4, 0x4).rw(FUNC(fdc37c93x_device::disabled_read), FUNC(fdc37c93x_device::disabled_write)); map(0x5, 0x5).rw(FUNC(fdc37c93x_device::disabled_read), FUNC(fdc37c93x_device::disabled_write)); map(0x7, 0x7).rw(FUNC(fdc37c93x_device::disabled_read), FUNC(fdc37c93x_device::disabled_write)); } void fdc37c93x_device::map_fdc_addresses() { uint16_t base = get_base_address(LogicalDevice::FDC, 0); m_isa->install_device(base, base + 7, *floppy_controller_fdcdev, &smc37c78_device::map); } void fdc37c93x_device::unmap_fdc_addresses() { uint16_t base = get_base_address(LogicalDevice::FDC, 0); m_isa->install_device(base, base + 7, *this, &fdc37c93x_device::unmap_fdc); } void fdc37c93x_device::map_lpt(address_map &map) { map(0x0, 0x3).rw(pc_lpt_lptdev, FUNC(pc_lpt_device::read), FUNC(pc_lpt_device::write)); } void fdc37c93x_device::map_lpt_addresses() { uint16_t base = get_base_address(LogicalDevice::Parallel, 0); m_isa->install_device(base, base + 3, *this, &fdc37c93x_device::map_lpt); } void fdc37c93x_device::unmap_lpt_addresses() { uint16_t base = get_base_address(LogicalDevice::Parallel, 0); m_isa->unmap_device(base, base + 3); } void fdc37c93x_device::map_serial1(address_map &map) { map(0x0, 0x7).rw(pc_serial1_comdev, FUNC(ns16450_device::ins8250_r), FUNC(ns16450_device::ins8250_w)); } void fdc37c93x_device::map_serial1_addresses() { uint16_t base = get_base_address(LogicalDevice::Serial1, 0); m_isa->install_device(base, base + 7, *this, &fdc37c93x_device::map_serial1); } void fdc37c93x_device::unmap_serial1_addresses() { uint16_t base = get_base_address(LogicalDevice::Serial1, 0); m_isa->unmap_device(base, base + 7); } void fdc37c93x_device::map_serial2(address_map &map) { map(0x0, 0x7).rw(pc_serial2_comdev, FUNC(ns16450_device::ins8250_r), FUNC(ns16450_device::ins8250_w)); } void fdc37c93x_device::map_serial2_addresses() { uint16_t base = get_base_address(LogicalDevice::Serial2, 0); m_isa->install_device(base, base + 7, *this, &fdc37c93x_device::map_serial2); } void fdc37c93x_device::unmap_serial2_addresses() { uint16_t base = get_base_address(LogicalDevice::Serial2, 0); m_isa->unmap_device(base, base + 3); } void fdc37c93x_device::map_rtc(address_map &map) { map(0x0, 0xf).lr8(NAME([this]() { return ds12885_rtcdev->get_address(); })).w(ds12885_rtcdev, FUNC(ds12885_device::address_w)).umask32(0x00ff00ff); // datasheet implies address might be a R/W register map(0x0, 0xf).rw(ds12885_rtcdev, FUNC(ds12885_device::data_r), FUNC(ds12885_device::data_w)).umask32(0xff00ff00); } void fdc37c93x_device::map_rtc_addresses() { uint16_t base = 0x70; m_isa->install_device(base, base + 0xf, *this, &fdc37c93x_device::map_rtc); } void fdc37c93x_device::unmap_rtc_addresses() { uint16_t base = 0x70; m_isa->unmap_device(base, base + 0xf); } void fdc37c93x_device::map_keyboard(address_map &map) { map(0x0, 0x0).rw(FUNC(fdc37c93x_device::at_keybc_r), FUNC(fdc37c93x_device::at_keybc_w)); map(0x4, 0x4).rw(FUNC(fdc37c93x_device::keybc_status_r), FUNC(fdc37c93x_device::keybc_command_w)); } void fdc37c93x_device::unmap_keyboard(address_map &map) { map(0x0, 0x0).noprw(); map(0x4, 0x4).noprw(); } uint8_t fdc37c93x_device::at_keybc_r(offs_t offset) { switch (offset) //m_kbdc { case 0: return m_kbdc->data_r(0); } return 0xff; } void fdc37c93x_device::at_keybc_w(offs_t offset, uint8_t data) { switch (offset) { case 0: m_kbdc->data_w(0, data); } } uint8_t fdc37c93x_device::keybc_status_r() { return (m_kbdc->data_r(4) & 0xfb) | 0x10; // bios needs bit 2 to be 0 as powerup and bit 4 to be 1 } void fdc37c93x_device::keybc_command_w(uint8_t data) { m_kbdc->data_w(4, data); } void fdc37c93x_device::map_keyboard_addresses() { uint16_t base = 0x60; m_isa->install_device(base, base + 7, *this, &fdc37c93x_device::map_keyboard); } void fdc37c93x_device::unmap_keyboard_addresses() { uint16_t base = 0x60; m_isa->install_device(base, base + 7, *this, &fdc37c93x_device::unmap_keyboard); } void fdc37c93x_device::remap(int space_id, offs_t start, offs_t end) { if (space_id == AS_IO) { if (sysopt_pin == 0) m_isa->install_device(0x03f0, 0x03f3, read8sm_delegate(*this, FUNC(fdc37c93x_device::read)), write8sm_delegate(*this, FUNC(fdc37c93x_device::write))); else m_isa->install_device(0x0370, 0x0373, read8sm_delegate(*this, FUNC(fdc37c93x_device::read)), write8sm_delegate(*this, FUNC(fdc37c93x_device::write))); if (enabled_logical[LogicalDevice::FDC] == true) map_fdc_addresses(); if (enabled_logical[LogicalDevice::Parallel] == true) map_lpt_addresses(); if (enabled_logical[LogicalDevice::Serial1] == true) map_serial1_addresses(); if (enabled_logical[LogicalDevice::Serial2] == true) map_serial2_addresses(); if (enabled_logical[LogicalDevice::RTC] == true) map_rtc_addresses(); if (enabled_logical[LogicalDevice::Keyboard] == true) map_keyboard_addresses(); } } /* Register access */ void fdc37c93x_device::write_global_configuration_register(int index, int data) { global_configuration_registers[index] = data; switch (index) { case 7: logical_device = data; break; } logerror("Write global configuration register %02X = %02X\n", index, data); } void fdc37c93x_device::write_logical_configuration_register(int index, int data) { configuration_registers[logical_device][index] = data; switch (logical_device) { case LogicalDevice::FDC: write_fdd_configuration_register(index, data); break; case LogicalDevice::IDE1: write_ide1_configuration_register(index, data); break; case LogicalDevice::IDE2: write_ide2_configuration_register(index, data); break; case LogicalDevice::Parallel: write_parallel_configuration_register(index, data); break; case LogicalDevice::Serial1: write_serial1_configuration_register(index, data); break; case LogicalDevice::Serial2: write_serial2_configuration_register(index, data); break; case LogicalDevice::RTC: write_rtc_configuration_register(index, data); break; case LogicalDevice::Keyboard: write_keyboard_configuration_register(index, data); break; case LogicalDevice::AuxIO: write_auxio_configuration_register(index, data); break; } logerror("Write logical configuration register %02X: %02X = %02X\n", logical_device, index, data); } void fdc37c93x_device::write_fdd_configuration_register(int index, int data) { if (index == 0x30) { if (data & 1) { if (enabled_logical[LogicalDevice::FDC] == false) map_fdc_addresses(); enabled_logical[LogicalDevice::FDC] = true; logerror("Enabled FDD at %04X\n", get_base_address(LogicalDevice::FDC, 0)); } else { if (enabled_logical[LogicalDevice::FDC] == true) unmap_fdc_addresses(); enabled_logical[LogicalDevice::FDC] = false; logerror("Disabled FDD at %04X\n", get_base_address(LogicalDevice::FDC, 0)); } } if (index == 0x74) update_dreq_mapping(configuration_registers[LogicalDevice::FDC][0x74], LogicalDevice::FDC); if (index == 0xF0) logerror("FDD Mode Register changed: Floppy Mode %d FDC DMA Mode %d Interface Mode %d Swap Drives %d\n", (data >> 0) & 1, (data >> 1) & 1, (data >> 2) & 3, (data >> 4) & 1); } void fdc37c93x_device::write_parallel_configuration_register(int index, int data) { if (index == 0x30) { if (data & 1) { if (enabled_logical[LogicalDevice::Parallel] == false) map_lpt_addresses(); enabled_logical[LogicalDevice::Parallel] = true; logerror("Enabled LPT at %04X\n", get_base_address(LogicalDevice::Parallel, 0)); } else { if (enabled_logical[LogicalDevice::Parallel] == true) unmap_lpt_addresses(); enabled_logical[LogicalDevice::Parallel] = false; } } } void fdc37c93x_device::write_serial1_configuration_register(int index, int data) { if (index == 0x30) { if (data & 1) { if (enabled_logical[LogicalDevice::Serial1] == false) map_serial1_addresses(); enabled_logical[LogicalDevice::Serial1] = true; logerror("Enabled Serial1 at %04X\n", get_base_address(LogicalDevice::Serial1, 0)); } else { if (enabled_logical[LogicalDevice::Serial1] == true) unmap_serial1_addresses(); enabled_logical[LogicalDevice::Serial1] = false; } } } void fdc37c93x_device::write_serial2_configuration_register(int index, int data) { if (index == 0x30) { if (data & 1) { if (enabled_logical[LogicalDevice::Serial2] == false) map_serial2_addresses(); enabled_logical[LogicalDevice::Serial2] = true; logerror("Enabled Serial2 at %04X\n", get_base_address(LogicalDevice::Serial2, 0)); } else { if (enabled_logical[LogicalDevice::Serial2] == true) unmap_serial2_addresses(); enabled_logical[LogicalDevice::Serial2] = false; } } } void fdc37c93x_device::write_rtc_configuration_register(int index, int data) { if (index == 0x30) { if (data & 1) { if (enabled_logical[LogicalDevice::RTC] == false) map_rtc_addresses(); enabled_logical[LogicalDevice::RTC] = true; logerror("Enabled RTC\n"); } else { if (enabled_logical[LogicalDevice::RTC] == true) unmap_rtc_addresses(); enabled_logical[LogicalDevice::RTC] = false; } } } void fdc37c93x_device::write_keyboard_configuration_register(int index, int data) { if (index == 0x30) { if (data & 1) { if (enabled_logical[LogicalDevice::Keyboard] == false) map_keyboard_addresses(); enabled_logical[LogicalDevice::Keyboard] = true; logerror("Enabled Keyboard\n"); } else { if (enabled_logical[LogicalDevice::Keyboard] == true) unmap_keyboard_addresses(); enabled_logical[LogicalDevice::Keyboard] = false; } } } void fdc37c93x_device::write_auxio_configuration_register(int index, int data) { if (index == 0x30) if (data & 1) logerror("Enabled Aux I/O\n"); if (index == 0xe8) { if (data & 16) logerror("GP20 used as 8042 P20 keyboard reset line\n"); } if (index == 0xed) { if (data & 8) logerror("GP25 used as GATEA20 line\n"); } } uint16_t fdc37c93x_device::read_global_configuration_register(int index) { uint16_t ret = 0; ret = global_configuration_registers[index]; switch (index) { case 7: ret = logical_device; break; case 0x20: ret = m_device_id; break; case 0x21: ret = m_device_rev; break; } logerror("Read global configuration register %02X = %02X\n", index, ret); return ret; } uint16_t fdc37c93x_device::read_logical_configuration_register(int index) { uint16_t ret = 0; switch (logical_device) { case LogicalDevice::FDC: ret = read_fdd_configuration_register(index); break; case LogicalDevice::IDE1: ret = read_ide1_configuration_register(index); break; case LogicalDevice::IDE2: ret = read_ide2_configuration_register(index); break; case LogicalDevice::Parallel: ret = read_parallel_configuration_register(index); break; case LogicalDevice::Serial1: ret = read_serial1_configuration_register(index); break; case LogicalDevice::Serial2: ret = read_serial2_configuration_register(index); break; case LogicalDevice::RTC: ret = read_rtc_configuration_register(index); break; case LogicalDevice::Keyboard: ret = read_keyboard_configuration_register(index); break; case LogicalDevice::AuxIO: ret = read_auxio_configuration_register(index); break; } logerror("Read logical configuration register %02X: %02X = %02X\n", logical_device, index, ret); return ret; } uint16_t fdc37c93x_device::read_rtc_configuration_register(int index) { return configuration_registers[LogicalDevice::RTC][index]; } uint16_t fdc37c93x_device::read_keyboard_configuration_register(int index) { return configuration_registers[LogicalDevice::Keyboard][index]; } uint16_t fdc37c93x_device::read_auxio_configuration_register(int index) { return configuration_registers[LogicalDevice::AuxIO][index]; } /* Device management */ void fdc37c93x_device::device_start() { set_isa_device(); m_isa->set_dma_channel(0, this, true); m_isa->set_dma_channel(1, this, true); m_isa->set_dma_channel(2, this, true); m_isa->set_dma_channel(3, this, true); remap(AS_IO, 0, 0x400); } void fdc37c93x_device::device_reset() { } // 'M707 is mostly same except no IDE ports and extra power management regs DEFINE_DEVICE_TYPE(FDC37M707, fdc37m707_device, "fdc37m707", "SMSC FDC37M707 Super I/O") fdc37m707_device::fdc37m707_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : fdc37c93x_device(mconfig, FDC37M707, tag, owner, clock) { m_device_id = 0x42; m_device_rev = 0x01; }