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vegas: Add wheel force control for initial calibration. (nw)

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This commit is contained in:
Ted Green 2017-12-10 12:59:40 -07:00
parent 1927d5942b
commit 0306e6e119
1 changed files with 43 additions and 4 deletions
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47
src/mame/drivers/vegas.cpp
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@ -344,6 +344,9 @@ public:
optional_device<ns16550_device> m_uart2;
optional_ioport_array<8> m_io_analog;
int m_a2d_shift;
int8_t m_wheel_force;
int m_wheel_offset;
bool m_wheel_calibrated;
uint8_t m_vblank_state;
uint8_t m_cpuio_data[4];
uint8_t m_sio_reset_ctrl;
@ -402,6 +405,7 @@ public:
DECLARE_READ32_MEMBER(unknown_r);
DECLARE_READ8_MEMBER(parallel_r);
DECLARE_WRITE8_MEMBER(parallel_w);
DECLARE_WRITE8_MEMBER(mpsreset_w);
DECLARE_WRITE32_MEMBER(i40_w);
DECLARE_CUSTOM_INPUT_MEMBER(i40_r);
DECLARE_CUSTOM_INPUT_MEMBER(keypad_r);
@ -453,6 +457,7 @@ void vegas_state::machine_start()
save_item(NAME(m_i40_data));
save_item(NAME(m_keypad_select));
save_item(NAME(m_gear));
save_item(NAME(m_wheel_calibrated));
}
@ -472,6 +477,9 @@ void vegas_state::machine_reset()
m_i40_data = 0;
m_keypad_select = 0;
m_gear = 1;
m_wheel_force = 0;
m_wheel_offset = 0;
m_wheel_calibrated = false;
}
/*************************************
@ -876,13 +884,34 @@ WRITE32_MEMBER( vegas_state::analog_port_w )
{
uint32_t shift_data = data >> m_a2d_shift;
int index = shift_data & 0x7;
m_pending_analog_read = (m_io_analog[index].read_safe(0));
uint8_t currValue = m_io_analog[index].read_safe(0);
if (!m_wheel_calibrated && ((m_wheel_force > 20) || (m_wheel_force < -20))) {
if (m_wheel_force > 0 && m_wheel_offset < 128)
m_wheel_offset++;
else if (m_wheel_offset > -128)
m_wheel_offset--;
int tmpVal = int(currValue) + m_wheel_offset;
if (tmpVal < m_io_analog[index]->field(0xff)->minval())
m_pending_analog_read = m_io_analog[index]->field(0xff)->minval();
else if (tmpVal > m_io_analog[index]->field(0xff)->maxval())
m_pending_analog_read = m_io_analog[index]->field(0xff)->maxval();
else
m_pending_analog_read = tmpVal;
}
else {
m_pending_analog_read = currValue;
}
// Declare calibration finished as soon as non-middle value is detected, ie the user has turned the wheel
if (!m_wheel_calibrated && currValue != 0 && (currValue > (0x80 + 0x10) || currValue < (0x80 - 0x10))) {
m_wheel_calibrated = true;
//osd_printf_info("wheel calibration comlete wheel: %02x\n", currValue);
}
//logerror("analog_port_w: wheel_force: %i read: %i\n", m_wheel_force, m_pending_analog_read);
//logerror("%08X: analog_port_w = %08X & %08X index = %d\n", machine().device("maincpu")->safe_pc(), data, mem_mask, index);
if (m_sio_irq_enable & 0x02) {
m_sio_irq_state |= 0x02;
update_sio_irqs();
}
}
@ -948,6 +977,14 @@ WRITE8_MEMBER(vegas_state::parallel_w)
logerror("%06X: parallel_w %08x = %02x\n", machine().device("maincpu")->safe_pc(), offset, data);
}
/*************************************
* MPS Reset
*************************************/
WRITE8_MEMBER(vegas_state::mpsreset_w)
{
logerror("%06X: mpsreset_w %08x = %02x\n", machine().device("maincpu")->safe_pc(), offset, data);
}
/*************************************
* Optical 49 Way Joystick I40 Board
*************************************/
@ -1008,19 +1045,21 @@ CUSTOM_INPUT_MEMBER(vegas_state::i40_r)
*************************************/
WRITE32_MEMBER(vegas_state::wheel_board_w)
{
//logerror("wheel_board_w: data = %08x\n", data);
/* two writes in pairs. bit 11 high, bit 10 flag, flag off first, on second. arg remains the same. */
bool valid = (data & (1 << 11));
bool flag = (data & (1 << 10));
uint8_t op = (data >> 8) & 0x3;
uint8_t arg = data & 0xff;
//logerror("wheel_board_w: data = %08x op: %02x arg: %02x\n", data, op, arg);
if (valid && flag)
{
switch (op)
{
case 0x0:
machine().output().set_value("wheel", arg); // target wheel angle. signed byte.
m_wheel_force = int8_t(~arg);
break;
case 0x1:
@ -1628,7 +1667,7 @@ static ADDRESS_MAP_START(vegas_cs8_map, AS_PROGRAM, 32, vegas_state)
AM_RANGE(0x01000000, 0x0100001f) AM_DEVREADWRITE8("uart1", ns16550_device, ins8250_r, ins8250_w, 0xff) // Serial ttyS01 (TL16C552 CS0)
AM_RANGE(0x01400000, 0x0140001f) AM_DEVREADWRITE8("uart2", ns16550_device, ins8250_r, ins8250_w, 0xff) // Serial ttyS02 (TL16C552 CS1)
AM_RANGE(0x01800000, 0x0180001f) AM_READWRITE8(parallel_r, parallel_w, 0xff) // Parallel UART (TL16C552 CS2)
//AM_RANGE(0x01c00000, 0x0180001f) AM_READWRITE8(parallel_r, parallel_w, 0xff) // MPS Reset
AM_RANGE(0x01c00000, 0x01c00003) AM_WRITE8(mpsreset_w, 0xff) // MPS Reset
ADDRESS_MAP_END
/*************************************