diff options
Diffstat (limited to 'src/devices/bus/amiga/keyboard/a2000.cpp')
| -rw-r--r-- | src/devices/bus/amiga/keyboard/a2000.cpp | 371 |
1 files changed, 206 insertions, 165 deletions
diff --git a/src/devices/bus/amiga/keyboard/a2000.cpp b/src/devices/bus/amiga/keyboard/a2000.cpp index eb0ab7c5058..59aac50b652 100644 --- a/src/devices/bus/amiga/keyboard/a2000.cpp +++ b/src/devices/bus/amiga/keyboard/a2000.cpp @@ -70,21 +70,147 @@ #define LOGSCAN(...) LOGMASKED(LOG_SCAN, __VA_ARGS__) +namespace { + //************************************************************************** -// GLOBAL VARIABLES +// ROM DEFINITIONS //************************************************************************** -DEFINE_DEVICE_TYPE(A2000_KBD_G80_US, bus::amiga::keyboard::a2000_kbd_g80_us_device, "a2000kbd_g80_us", "Amiga 2000 Keyboard (Cherry - U.S./Canada)") -DEFINE_DEVICE_TYPE(A2000_KBD_G80_DE, bus::amiga::keyboard::a2000_kbd_g80_de_device, "a2000kbd_g80_de", "Amiga 2000 Keyboard (Cherry - Germany/Austria)") -DEFINE_DEVICE_TYPE(A2000_KBD_G80_SE, bus::amiga::keyboard::a2000_kbd_g80_se_device, "a2000kbd_g80_se", "Amiga 2000 Keyboard (Cherry - Sweden/Finland)") -DEFINE_DEVICE_TYPE(A2000_KBD_G80_DK, bus::amiga::keyboard::a2000_kbd_g80_dk_device, "a2000kbd_g80_dk", "Amiga 2000 Keyboard (Cherry - Denmark)") -DEFINE_DEVICE_TYPE(A2000_KBD_G80_GB, bus::amiga::keyboard::a2000_kbd_g80_gb_device, "a2000kbd_g80_gb", "Amiga 2000 Keyboard (Cherry - UK)") +ROM_START(a2000kbd) + ROM_REGION(0x0800, "mcu", 0) + ROM_LOAD("467.u4", 0x0000, 0x0800, CRC(fb92a773) SHA1(e787dc05de227f30a47ac5b9ee7a355c2e9e693b)) +ROM_END +//************************************************************************** +// KEYBOARD BASE CLASSES +//************************************************************************** -namespace bus::amiga::keyboard { +class a2000_kbd_g80_device : public device_t, public device_amiga_keyboard_interface +{ +public: + // from host + virtual DECLARE_WRITE_LINE_MEMBER(kdat_w) override + { + if (bool(state) != m_host_kdat) + { + LOGCOMM("host DATA %u -> %u\n", m_host_kdat ? 1 : 0, state ? 1 : 0); + m_host_kdat = bool(state); + if (m_mcu_kdat) + m_mcu->set_input_line(MCS48_INPUT_IRQ, state ? CLEAR_LINE : ASSERT_LINE); + } + } -namespace { +protected: + // construction/destruction + a2000_kbd_g80_device(machine_config const &mconfig, device_type type, char const *tag, device_t *owner, uint32_t clock) + : device_t(mconfig, type, tag, owner, clock) + , device_amiga_keyboard_interface(mconfig, *this) + , m_rows(*this, "ROW%u", 0U) + , m_mcu(*this, "u1") + , m_led_kbd_caps(*this, "led_kbd_caps") + { + } + + // MCU I/O + u8 mcu_bus_r(offs_t offset) + { + // when jumpered for external ROM, offset latched by U2 is 0x60 + (row << 1) + uint8_t result(0U); + for (unsigned i = 0U; m_rows.size() > i; ++i) + { + if (BIT(m_row_drive, i)) + result |= uint8_t(m_rows[i]->read()); + } + LOGSCAN("read bus: offset = %02X, row drive = %04X\n, result = %02X", offset, m_row_drive, result); + return result; + } + + void mcu_p1_w(u8 data) + { + m_row_drive = (m_row_drive & 0x1f00U) | uint16_t(data); + } + + void mcu_p2_w(u8 data) + { + m_row_drive = (m_row_drive & 0x00ffU) | (uint16_t(data & 0x1fU) << 8); + + m_led_kbd_caps = BIT(~data, 5); + + if (bool(BIT(data, 6) != m_mcu_kdat)) + { + m_mcu_kdat = BIT(data, 6); + LOGCOMM("keyboard DATA %u -> %u\n", m_mcu_kdat ? 0U : 1U, m_mcu_kdat ? 1U : 0U); + m_host->kdat_w(m_mcu_kdat ? 1 : 0); + if (m_host_kdat) + m_mcu->set_input_line(MCS48_INPUT_IRQ, m_mcu_kdat ? CLEAR_LINE : ASSERT_LINE); + } + + if (bool(BIT(data, 7) != m_mcu_kclk)) + { + m_mcu_kclk = BIT(data, 7); + LOGCOMM("keyboard CLOCK %u -> %u\n", m_mcu_kclk ? 0U : 1U, m_mcu_kclk ? 1U : 0U); + m_host->kclk_w(m_mcu_kclk ? 1 : 0); + } + } + + virtual const tiny_rom_entry *device_rom_region() const override + { + return ROM_NAME(a2000kbd); + } + + virtual void device_add_mconfig(machine_config &config) override + { + auto &mcu(I8039(config, "u1", 6_MHz_XTAL)); + mcu.set_addrmap(AS_PROGRAM, &a2000_kbd_g80_device::program_map); + mcu.set_addrmap(AS_IO, &a2000_kbd_g80_device::ext_map); + mcu.p1_out_cb().set(FUNC(a2000_kbd_g80_device::mcu_p1_w)); + mcu.p2_out_cb().set(FUNC(a2000_kbd_g80_device::mcu_p2_w)); + mcu.bus_in_cb().set(FUNC(a2000_kbd_g80_device::mcu_bus_r)); + mcu.t0_in_cb().set_constant(1); + mcu.t1_in_cb().set([this] () { return m_mcu_kclk ? 1 : 0; }); + } + + virtual void device_start() override + { + m_led_kbd_caps.resolve(); + + save_item(NAME(m_row_drive)); + save_item(NAME(m_host_kdat)); + save_item(NAME(m_mcu_kdat)); + save_item(NAME(m_mcu_kclk)); + + m_row_drive = 0U; + m_host_kdat = true; + m_mcu_kdat = true; + m_mcu_kclk = true; + } + + void program_map(address_map &map) + { + map.global_mask(0x07ff); + map(0x0000, 0x07ff).rom().region("mcu", 0); + } + + void ext_map(address_map &map) + { + map.global_mask(0x00ff); + map(0x0000, 0x00ff).r(FUNC(a2000_kbd_g80_device::mcu_bus_r)); + } + +private: + required_ioport_array<13> m_rows; + required_device<cpu_device> m_mcu; + output_finder<> m_led_kbd_caps; + + uint16_t m_row_drive = 0U; + bool m_host_kdat = true, m_mcu_kdat = true, m_mcu_kclk = true; +}; + + +//************************************************************************** +// COMMON PORT DEFINITIONS +//************************************************************************** INPUT_PORTS_START(a2000_common_keyboard) PORT_START("ROW0") @@ -169,6 +295,11 @@ INPUT_PORTS_START(a2000_common_keyboard) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) INPUT_PORTS_END + +//************************************************************************** +// SPECIFIC KEYBOARD PORT DEFINITIONS +//************************************************************************** + INPUT_PORTS_START(a2000_us_keyboard) PORT_INCLUDE(a2000_common_keyboard) @@ -476,197 +607,107 @@ INPUT_PORTS_START(a2000_gb_keyboard) INPUT_PORTS_END -ROM_START(a2000kbd) - ROM_REGION(0x0800, "mcu", 0) - ROM_LOAD("467.u4", 0x0000, 0x0800, CRC(fb92a773) SHA1(e787dc05de227f30a47ac5b9ee7a355c2e9e693b)) -ROM_END - -} // anonymous namespace - - - //************************************************************************** -// LIVE DEVICE +// SPECIFIC KEYBOARD CLASSES //************************************************************************** -// ======================> a2000_kbd_g80_device - -a2000_kbd_g80_device::a2000_kbd_g80_device(machine_config const &mconfig, device_type type, char const *tag, device_t *owner, uint32_t clock) - : device_t(mconfig, type, tag, owner, clock) - , device_amiga_keyboard_interface(mconfig, *this) - , m_rows(*this, "ROW%u", 0U) - , m_mcu(*this, "u1") - , m_led_kbd_caps(*this, "led_kbd_caps") - , m_row_drive(0U) - , m_host_kdat(true) - , m_mcu_kdat(true) - , m_mcu_kclk(true) -{ -} - -WRITE_LINE_MEMBER(a2000_kbd_g80_device::kdat_w) +class a2000_kbd_g80_us_device : public a2000_kbd_g80_device { - if (bool(state) != m_host_kdat) +public: + a2000_kbd_g80_us_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) + : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_US, tag, owner, clock) { - LOGCOMM("host DATA %u -> %u\n", m_host_kdat ? 1 : 0, state ? 1 : 0); - m_host_kdat = bool(state); - if (m_mcu_kdat) - m_mcu->set_input_line(MCS48_INPUT_IRQ, state ? CLEAR_LINE : ASSERT_LINE); } -} -u8 a2000_kbd_g80_device::mcu_bus_r(offs_t offset) -{ - // when jumpered for external ROM, offset latched by U2 is 0x60 + (row << 1) - uint8_t result(0U); - for (unsigned i = 0U; m_rows.size() > i; ++i) +protected: + virtual ioport_constructor device_input_ports() const override { - if (BIT(m_row_drive, i)) - result |= uint8_t(m_rows[i]->read()); + return INPUT_PORTS_NAME(a2000_us_keyboard); } - LOGSCAN("read bus: offset = %02X, row drive = %04X\n, result = %02X", offset, m_row_drive, result); - return result; -} +}; -void a2000_kbd_g80_device::mcu_p1_w(u8 data) -{ - m_row_drive = (m_row_drive & 0x1f00U) | uint16_t(data); -} -void a2000_kbd_g80_device::mcu_p2_w(u8 data) +class a2000_kbd_g80_de_device : public a2000_kbd_g80_device { - m_row_drive = (m_row_drive & 0x00ffU) | (uint16_t(data & 0x1fU) << 8); - - m_led_kbd_caps = BIT(~data, 5); - - if (bool(BIT(data, 6) != m_mcu_kdat)) +public: + a2000_kbd_g80_de_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) + : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_DE, tag, owner, clock) { - m_mcu_kdat = BIT(data, 6); - LOGCOMM("keyboard DATA %u -> %u\n", m_mcu_kdat ? 0U : 1U, m_mcu_kdat ? 1U : 0U); - m_host->kdat_w(m_mcu_kdat ? 1 : 0); - if (m_host_kdat) - m_mcu->set_input_line(MCS48_INPUT_IRQ, m_mcu_kdat ? CLEAR_LINE : ASSERT_LINE); } - if (bool(BIT(data, 7) != m_mcu_kclk)) + static auto parent_rom_device_type() { return &A2000_KBD_G80_US; } + +protected: + virtual ioport_constructor device_input_ports() const override { - m_mcu_kclk = BIT(data, 7); - LOGCOMM("keyboard CLOCK %u -> %u\n", m_mcu_kclk ? 0U : 1U, m_mcu_kclk ? 1U : 0U); - m_host->kclk_w(m_mcu_kclk ? 1 : 0); + return INPUT_PORTS_NAME(a2000_de_keyboard); } -} - -tiny_rom_entry const *a2000_kbd_g80_device::device_rom_region() const -{ - return ROM_NAME(a2000kbd); -} - -void a2000_kbd_g80_device::device_add_mconfig(machine_config &config) -{ - auto &mcu(I8039(config, "u1", 6_MHz_XTAL)); - mcu.set_addrmap(AS_PROGRAM, &a2000_kbd_g80_device::program_map); - mcu.set_addrmap(AS_IO, &a2000_kbd_g80_device::ext_map); - mcu.p1_out_cb().set(FUNC(a2000_kbd_g80_device::mcu_p1_w)); - mcu.p2_out_cb().set(FUNC(a2000_kbd_g80_device::mcu_p2_w)); - mcu.bus_in_cb().set(FUNC(a2000_kbd_g80_device::mcu_bus_r)); - mcu.t0_in_cb().set_constant(1); - mcu.t1_in_cb().set([this] () { return m_mcu_kclk ? 1 : 0; }); -} - -void a2000_kbd_g80_device::device_start() -{ - m_led_kbd_caps.resolve(); - - save_item(NAME(m_row_drive)); - save_item(NAME(m_host_kdat)); - save_item(NAME(m_mcu_kdat)); - save_item(NAME(m_mcu_kclk)); - - m_row_drive = 0U; - m_host_kdat = true; - m_mcu_kdat = true; - m_mcu_kclk = true; -} - -void a2000_kbd_g80_device::device_reset() -{ -} - -void a2000_kbd_g80_device::program_map(address_map &map) -{ - map.global_mask(0x07ff); - map(0x0000, 0x07ff).rom().region("mcu", 0); -} - -void a2000_kbd_g80_device::ext_map(address_map &map) -{ - map.global_mask(0x00ff); - map(0x0000, 0x00ff).r(FUNC(a2000_kbd_g80_device::mcu_bus_r)); -} - +}; -// ======================> a2000_kbd_g80_us_device -a2000_kbd_g80_us_device::a2000_kbd_g80_us_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) - : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_US, tag, owner, clock) +class a2000_kbd_g80_se_device : public a2000_kbd_g80_device { -} - -ioport_constructor a2000_kbd_g80_us_device::device_input_ports() const -{ - return INPUT_PORTS_NAME(a2000_us_keyboard); -} +public: + a2000_kbd_g80_se_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) + : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_SE, tag, owner, clock) + { + } + static auto parent_rom_device_type() { return &A2000_KBD_G80_US; } -// ======================> a2000_kbd_g80_de_device +protected: + virtual ioport_constructor device_input_ports() const override + { + return INPUT_PORTS_NAME(a2000_se_keyboard); + } +}; -a2000_kbd_g80_de_device::a2000_kbd_g80_de_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) - : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_DE, tag, owner, clock) -{ -} -ioport_constructor a2000_kbd_g80_de_device::device_input_ports() const +class a2000_kbd_g80_dk_device : public a2000_kbd_g80_device { - return INPUT_PORTS_NAME(a2000_de_keyboard); -} +public: + a2000_kbd_g80_dk_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) + : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_DK, tag, owner, clock) + { + } + static auto parent_rom_device_type() { return &A2000_KBD_G80_US; } -// ======================> a2000_kbd_g80_se_device +protected: + virtual ioport_constructor device_input_ports() const override + { + return INPUT_PORTS_NAME(a2000_dk_keyboard); + } +}; -a2000_kbd_g80_se_device::a2000_kbd_g80_se_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) - : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_SE, tag, owner, clock) -{ -} -ioport_constructor a2000_kbd_g80_se_device::device_input_ports() const +class a2000_kbd_g80_gb_device : public a2000_kbd_g80_device { - return INPUT_PORTS_NAME(a2000_se_keyboard); -} - - -// ======================> a2000_kbd_g80_dk_device +public: + a2000_kbd_g80_gb_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) + : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_GB, tag, owner, clock) + { + } -a2000_kbd_g80_dk_device::a2000_kbd_g80_dk_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) - : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_DK, tag, owner, clock) -{ -} + static auto parent_rom_device_type() { return &A2000_KBD_G80_US; } -ioport_constructor a2000_kbd_g80_dk_device::device_input_ports() const -{ - return INPUT_PORTS_NAME(a2000_dk_keyboard); -} +protected: + virtual ioport_constructor device_input_ports() const override + { + return INPUT_PORTS_NAME(a2000_gb_keyboard); + } +}; +} // anonymous namespace -// ======================> a2000_kbd_g80_gb_device -a2000_kbd_g80_gb_device::a2000_kbd_g80_gb_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock) - : a2000_kbd_g80_device(mconfig, A2000_KBD_G80_GB, tag, owner, clock) -{ -} -ioport_constructor a2000_kbd_g80_gb_device::device_input_ports() const -{ - return INPUT_PORTS_NAME(a2000_gb_keyboard); -} +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** -} // namespace bus::amiga::keyboard +DEFINE_DEVICE_TYPE_PRIVATE(A2000_KBD_G80_US, device_amiga_keyboard_interface, a2000_kbd_g80_us_device, "a2000kbd_g80_us", "Amiga 2000 Keyboard (Cherry - U.S./Canada)") +DEFINE_DEVICE_TYPE_PRIVATE(A2000_KBD_G80_DE, device_amiga_keyboard_interface, a2000_kbd_g80_de_device, "a2000kbd_g80_de", "Amiga 2000 Keyboard (Cherry - Germany/Austria)") +DEFINE_DEVICE_TYPE_PRIVATE(A2000_KBD_G80_SE, device_amiga_keyboard_interface, a2000_kbd_g80_se_device, "a2000kbd_g80_se", "Amiga 2000 Keyboard (Cherry - Sweden/Finland)") +DEFINE_DEVICE_TYPE_PRIVATE(A2000_KBD_G80_DK, device_amiga_keyboard_interface, a2000_kbd_g80_dk_device, "a2000kbd_g80_dk", "Amiga 2000 Keyboard (Cherry - Denmark)") +DEFINE_DEVICE_TYPE_PRIVATE(A2000_KBD_G80_GB, device_amiga_keyboard_interface, a2000_kbd_g80_gb_device, "a2000kbd_g80_gb", "Amiga 2000 Keyboard (Cherry - UK)") |
