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Diffstat (limited to 'src/devices/bus/a2gameio/joystick.cpp')
-rw-r--r--src/devices/bus/a2gameio/joystick.cpp133
1 files changed, 133 insertions, 0 deletions
diff --git a/src/devices/bus/a2gameio/joystick.cpp b/src/devices/bus/a2gameio/joystick.cpp
new file mode 100644
index 00000000000..02f256c8303
--- /dev/null
+++ b/src/devices/bus/a2gameio/joystick.cpp
@@ -0,0 +1,133 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+ Apple II analog joysticks
+
+*********************************************************************/
+
+#include "emu.h"
+#include "bus/a2gameio/joystick.h"
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+// device type definition
+DEFINE_DEVICE_TYPE(APPLE2_JOYSTICK, apple2_joystick_device, "a2joy", "Apple II analog joysticks")
+
+//**************************************************************************
+// PARAMETERS
+//**************************************************************************
+
+#define JOYSTICK_DELTA 80
+#define JOYSTICK_SENSITIVITY 50
+#define JOYSTICK_AUTOCENTER 80
+
+//**************************************************************************
+// INPUT PORTS
+//**************************************************************************
+
+static INPUT_PORTS_START( apple2_joystick )
+ PORT_START("joystick_1_x") /* Joystick 1 X Axis */
+ PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X) PORT_NAME("P1 Joystick X")
+ PORT_SENSITIVITY(JOYSTICK_SENSITIVITY)
+ PORT_KEYDELTA(JOYSTICK_DELTA)
+ PORT_CENTERDELTA(JOYSTICK_AUTOCENTER)
+ PORT_MINMAX(0,0xff) PORT_PLAYER(1)
+ PORT_CODE_DEC(KEYCODE_4_PAD) PORT_CODE_INC(KEYCODE_6_PAD)
+ PORT_CODE_DEC(JOYCODE_X_LEFT_SWITCH) PORT_CODE_INC(JOYCODE_X_RIGHT_SWITCH)
+
+ PORT_START("joystick_1_y") /* Joystick 1 Y Axis */
+ PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y) PORT_NAME("P1 Joystick Y")
+ PORT_SENSITIVITY(JOYSTICK_SENSITIVITY)
+ PORT_KEYDELTA(JOYSTICK_DELTA)
+ PORT_CENTERDELTA(JOYSTICK_AUTOCENTER)
+ PORT_MINMAX(0,0xff) PORT_PLAYER(1)
+ PORT_CODE_DEC(KEYCODE_8_PAD) PORT_CODE_INC(KEYCODE_2_PAD)
+ PORT_CODE_DEC(JOYCODE_Y_UP_SWITCH) PORT_CODE_INC(JOYCODE_Y_DOWN_SWITCH)
+
+ PORT_START("joystick_2_x") /* Joystick 2 X Axis */
+ PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X) PORT_NAME("P2 Joystick X")
+ PORT_SENSITIVITY(JOYSTICK_SENSITIVITY)
+ PORT_KEYDELTA(JOYSTICK_DELTA)
+ PORT_CENTERDELTA(JOYSTICK_AUTOCENTER)
+ PORT_MINMAX(0,0xff) PORT_PLAYER(2)
+ PORT_CODE_DEC(JOYCODE_X_LEFT_SWITCH) PORT_CODE_INC(JOYCODE_X_RIGHT_SWITCH)
+
+ PORT_START("joystick_2_y") /* Joystick 2 Y Axis */
+ PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y) PORT_NAME("P2 Joystick Y")
+ PORT_SENSITIVITY(JOYSTICK_SENSITIVITY)
+ PORT_KEYDELTA(JOYSTICK_DELTA)
+ PORT_CENTERDELTA(JOYSTICK_AUTOCENTER)
+ PORT_MINMAX(0,0xff) PORT_PLAYER(2)
+ PORT_CODE_DEC(JOYCODE_Y_UP_SWITCH) PORT_CODE_INC(JOYCODE_Y_DOWN_SWITCH)
+
+ PORT_START("joystick_buttons")
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(1) PORT_CODE(KEYCODE_0_PAD) PORT_CODE(JOYCODE_BUTTON1)
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON2) PORT_PLAYER(1) PORT_CODE(KEYCODE_ENTER_PAD)PORT_CODE(JOYCODE_BUTTON2)
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(2) PORT_CODE(JOYCODE_BUTTON1)
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON2) PORT_PLAYER(2) PORT_CODE(JOYCODE_BUTTON2)
+INPUT_PORTS_END
+
+//**************************************************************************
+// DEVICE IMPLEMENTATION
+//**************************************************************************
+
+apple2_joystick_device::apple2_joystick_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, APPLE2_JOYSTICK, tag, owner, clock)
+ , device_a2gameio_interface(mconfig, *this)
+ , m_joy_x(*this, "joystick_%u_x", 1U)
+ , m_joy_y(*this, "joystick_%u_y", 1U)
+ , m_buttons(*this, "joystick_buttons")
+{
+}
+
+ioport_constructor apple2_joystick_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME(apple2_joystick);
+}
+
+void apple2_joystick_device::device_start()
+{
+}
+
+u8 apple2_joystick_device::pdl0_r()
+{
+ return m_joy_x[0]->read();
+}
+
+u8 apple2_joystick_device::pdl1_r()
+{
+ return m_joy_y[0]->read();
+}
+
+u8 apple2_joystick_device::pdl2_r()
+{
+ return m_joy_x[1]->read();
+}
+
+u8 apple2_joystick_device::pdl3_r()
+{
+ return m_joy_x[1]->read();
+}
+
+READ_LINE_MEMBER(apple2_joystick_device::sw0_r)
+{
+ return BIT(m_buttons->read(), 4);
+}
+
+READ_LINE_MEMBER(apple2_joystick_device::sw1_r)
+{
+ return BIT(m_buttons->read(), 5);
+}
+
+READ_LINE_MEMBER(apple2_joystick_device::sw2_r)
+{
+ return BIT(m_buttons->read(), 6);
+}
+
+READ_LINE_MEMBER(apple2_joystick_device::sw3_r)
+{
+ return BIT(m_buttons->read(), 7);
+}