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-rw-r--r--src/devices/bus/vsmile/pad.cpp275
1 files changed, 275 insertions, 0 deletions
diff --git a/src/devices/bus/vsmile/pad.cpp b/src/devices/bus/vsmile/pad.cpp
new file mode 100644
index 00000000000..a301c65b9e2
--- /dev/null
+++ b/src/devices/bus/vsmile/pad.cpp
@@ -0,0 +1,275 @@
+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz, Vas Crabb
+
+#include "emu.h"
+#include "pad.h"
+
+#include <algorithm>
+
+//#define VERBOSE 1
+#include "logmacro.h"
+
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(VSMILE_PAD, vsmile_pad_device, "vsmile_pad", "V.Smile Joystick")
+
+
+//**************************************************************************
+// V.Smile control pad
+//**************************************************************************
+
+DECLARE_ENUM_BITWISE_OPERATORS(vsmile_pad_device::stale_inputs)
+ALLOW_SAVE_TYPE(vsmile_pad_device::stale_inputs);
+
+vsmile_pad_device::vsmile_pad_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock)
+ : vsmile_ctrl_device_base(mconfig, VSMILE_PAD, tag, owner, clock)
+ , m_io_joy(*this, "JOY")
+ , m_io_colors(*this, "COLORS")
+ , m_io_buttons(*this, "BUTTONS")
+ , m_idle_timer(nullptr)
+ , m_sent_joy(0x00U)
+ , m_sent_colors(0x00U)
+ , m_sent_buttons(0x00U)
+ , m_stale(STALE_ALL)
+ , m_active(false)
+{
+ std::fill(std::begin(m_ctrl_probe_history), std::end(m_ctrl_probe_history), 0U);
+}
+
+vsmile_pad_device::~vsmile_pad_device()
+{
+}
+
+void vsmile_pad_device::device_start()
+{
+ vsmile_ctrl_device_base::device_start();
+
+ m_idle_timer = machine().scheduler().timer_alloc(
+ timer_expired_delegate(FUNC(vsmile_pad_device::handle_idle), this));
+ m_idle_timer->adjust(attotime::from_seconds(1));
+
+ m_sent_joy = 0x00U;
+ m_sent_colors = 0x00U;
+ m_sent_buttons = 0x00U;
+ m_stale = STALE_ALL;
+ m_active = false;
+
+ save_item(NAME(m_sent_joy));
+ save_item(NAME(m_sent_colors));
+ save_item(NAME(m_sent_buttons));
+ save_item(NAME(m_stale));
+ save_item(NAME(m_active));
+ save_item(NAME(m_ctrl_probe_history));
+}
+
+void vsmile_pad_device::tx_complete()
+{
+ // update joystick
+ if ((m_stale & STALE_JOY) != STALE_NONE)
+ {
+ m_sent_joy = m_io_joy->read();
+ if ((m_stale & STALE_UP_DOWN) != STALE_NONE)
+ {
+ if (BIT(m_sent_joy, 0))
+ uart_tx_fifo_push(0x87); // up
+ else if (BIT(m_sent_joy, 1))
+ uart_tx_fifo_push(0x8f); // down
+ else
+ uart_tx_fifo_push(0x80);
+ }
+ if ((m_stale & STALE_LEFT_RIGHT) != STALE_NONE)
+ {
+ if (BIT(m_sent_joy, 2))
+ uart_tx_fifo_push(0xcf); // left
+ else if (BIT(m_sent_joy, 3))
+ uart_tx_fifo_push(0xc7); // right
+ else
+ uart_tx_fifo_push(0xc0);
+ }
+ }
+
+ // update colors
+ if ((m_stale & STALE_COLORS) != STALE_NONE)
+ {
+ m_sent_colors = m_io_colors->read();
+ uart_tx_fifo_push(0x90 | m_sent_colors);
+ }
+
+ // update buttons
+ if ((m_stale & STALE_BUTTONS) != STALE_NONE)
+ {
+ m_sent_buttons = m_io_buttons->read();
+ if (((m_stale & STALE_OK) != STALE_NONE) && BIT(m_sent_buttons, 0))
+ uart_tx_fifo_push(0xa1);
+ if (((m_stale & STALE_QUIT) != STALE_NONE) && BIT(m_sent_buttons, 1))
+ uart_tx_fifo_push(0xa2);
+ if (((m_stale & STALE_HELP) != STALE_NONE) && BIT(m_sent_buttons, 2))
+ uart_tx_fifo_push(0xa3);
+ if (((m_stale & STALE_ABC) != STALE_NONE) && BIT(m_sent_buttons, 3))
+ uart_tx_fifo_push(0xa4);
+ if (!m_sent_buttons)
+ uart_tx_fifo_push(0xa0);
+ }
+
+ // if nothing happens in the next second we'll queue a keep-alive
+ if (!m_active)
+ LOG("entered active state\n");
+ m_idle_timer->adjust(attotime::from_seconds(1));
+ m_active = true;
+ m_stale = STALE_NONE;
+}
+
+void vsmile_pad_device::tx_timeout()
+{
+ if (m_active)
+ {
+ m_idle_timer->reset();
+ m_active = false;
+ m_stale = STALE_ALL;
+ std::fill(std::begin(m_ctrl_probe_history), std::end(m_ctrl_probe_history), 0U);
+ LOG("left active state\n");
+ }
+ uart_tx_fifo_push(0x55);
+}
+
+void vsmile_pad_device::rx_complete(uint8_t data, bool select)
+{
+ if (select)
+ {
+ if (((data & 0xf0) == 0x70) || ((data & 0xf0) == 0xb0))
+ {
+ m_ctrl_probe_history[0] = ((data & 0xf0) == 0x70) ? 0 : m_ctrl_probe_history[1];
+ m_ctrl_probe_history[1] = data;
+ uint8_t const response = ((m_ctrl_probe_history[0] + m_ctrl_probe_history[1] + 0x0f) & 0x0f) ^ 0x05;
+ LOG(
+ "%s: received probe %02X, %02X, sending response %02X\n",
+ machine().describe_context(),
+ m_ctrl_probe_history[0],
+ m_ctrl_probe_history[1],
+ 0xb0 | response);
+ uart_tx_fifo_push(0xb0 | response);
+ }
+ }
+}
+
+void vsmile_pad_device::uart_tx_fifo_push(uint8_t data)
+{
+ m_idle_timer->reset();
+ queue_tx(data);
+}
+
+TIMER_CALLBACK_MEMBER(vsmile_pad_device::handle_idle)
+{
+ LOG("idle timer expired, sending keep-alive 55\n");
+ queue_tx(0x55);
+}
+
+INPUT_CHANGED_MEMBER(vsmile_pad_device::pad_joy_changed)
+{
+ if (m_active)
+ {
+ if (!is_tx_empty())
+ {
+ LOG("joy changed while transmission in progress, marking stale\n");
+ m_stale |= stale_inputs(uintptr_t(param));
+ }
+ else
+ {
+ uint8_t const joy = m_io_joy->read();
+ if ((joy ^ m_sent_joy) & 0x03)
+ {
+ if (BIT(joy, 0))
+ uart_tx_fifo_push(0x87); // up
+ else if (BIT(joy, 1))
+ uart_tx_fifo_push(0x8f); // down
+ else
+ uart_tx_fifo_push(0x80);
+ }
+ if ((joy ^ m_sent_joy) & 0x0c)
+ {
+ if (BIT(joy, 2))
+ uart_tx_fifo_push(0xcf); // left
+ else if (BIT(joy, 3))
+ uart_tx_fifo_push(0xc7); // right
+ else
+ uart_tx_fifo_push(0xc0);
+ }
+ m_sent_joy = joy;
+ }
+ }
+}
+
+INPUT_CHANGED_MEMBER(vsmile_pad_device::pad_color_changed)
+{
+ if (m_active)
+ {
+ if (!is_tx_empty())
+ {
+ LOG("colors changed while transmission in progress, marking stale\n");
+ m_stale |= STALE_COLORS;
+ }
+ else
+ {
+ m_sent_colors = m_io_colors->read();
+ uart_tx_fifo_push(0x90 | m_sent_colors);
+ }
+ }
+}
+
+INPUT_CHANGED_MEMBER(vsmile_pad_device::pad_button_changed)
+{
+ if (m_active)
+ {
+ if (!is_tx_empty())
+ {
+ LOG("buttons changed while transmission in progress, marking stale\n");
+ m_stale |= stale_inputs(uintptr_t(param));
+ }
+ else
+ {
+ uint8_t const buttons = m_io_buttons->read();
+ if (BIT((m_sent_buttons ^ buttons) & buttons, 0))
+ uart_tx_fifo_push(0xa1);
+ if (BIT((m_sent_buttons ^ buttons) & buttons, 1))
+ uart_tx_fifo_push(0xa2);
+ if (BIT((m_sent_buttons ^ buttons) & buttons, 2))
+ uart_tx_fifo_push(0xa3);
+ if (BIT((m_sent_buttons ^ buttons) & buttons, 3))
+ uart_tx_fifo_push(0xa4);
+ if (!buttons)
+ uart_tx_fifo_push(0xa0);
+ m_sent_buttons = buttons;
+ }
+ }
+}
+
+static INPUT_PORTS_START( vsmile_pad )
+ PORT_START("JOY")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_joy_changed, vsmile_pad_device::STALE_UP_DOWN) PORT_NAME("Joypad Up")
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_joy_changed, vsmile_pad_device::STALE_UP_DOWN) PORT_NAME("Joypad Down")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_joy_changed, vsmile_pad_device::STALE_LEFT_RIGHT) PORT_NAME("Joypad Left")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_joy_changed, vsmile_pad_device::STALE_LEFT_RIGHT) PORT_NAME("Joypad Right")
+ PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("COLORS")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_color_changed, vsmile_pad_device::STALE_COLORS) PORT_NAME("Green")
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_color_changed, vsmile_pad_device::STALE_COLORS) PORT_NAME("Blue")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_color_changed, vsmile_pad_device::STALE_COLORS) PORT_NAME("Yellow")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_color_changed, vsmile_pad_device::STALE_COLORS) PORT_NAME("Red")
+ PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("BUTTONS")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_button_changed, vsmile_pad_device::STALE_OK) PORT_NAME("OK")
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_button_changed, vsmile_pad_device::STALE_QUIT) PORT_NAME("Quit")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_button_changed, vsmile_pad_device::STALE_HELP) PORT_NAME("Help")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON8 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vsmile_pad_device, pad_button_changed, vsmile_pad_device::STALE_ABC) PORT_NAME("ABC")
+ PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
+INPUT_PORTS_END
+
+ioport_constructor vsmile_pad_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( vsmile_pad );
+}