void zx8302_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (id)
{
case TIMER_TXD:
transmit_serial_data();
break;
case TIMER_BAUDX4:
m_baudx4 = !m_baudx4;
m_out_baudx4_func(m_baudx4);
break;
case TIMER_RTC:
m_ctr++;
break;
case TIMER_GAP:
trigger_interrupt(INT_GAP);
break;
case TIMER_IPC:
m_idr = param;
m_ipc_state = IPC_START;
m_ipc_rx = 0;
transmit_ipc_data();
break;
}
}
inline void zx8302_device::transmit_serial_data()
{
switch (m_tx_bits)
{
case TXD_START:
if (!(m_irq & INT_TRANSMIT))
{
transmit_bit(0);
m_tx_bits++;
}
break;
default:
transmit_bit(BIT(m_tdr, 0));
m_tdr >>= 1;
m_tx_bits++;
break;
case TXD_STOP:
transmit_bit(1);
m_tx_bits++;
break;
case TXD_STOP2:
transmit_bit(1);
m_tx_bits = TXD_START;
m_status &= ~STATUS_TX_BUFFER_FULL;
trigger_interrupt(INT_TRANSMIT);
break;
}
}
void portfolio_state::scan_keyboard()
{
UINT8 keycode = 0xff;
UINT8 keydata[8] = { m_y0->read(), m_y1->read(), m_y2->read(), m_y3->read(),
m_y4->read(), m_y5->read(), m_y6->read(), m_y7->read() };
for (int row = 0; row < 8; row++)
{
UINT8 data = keydata[row];
if (data != 0xff)
{
for (int col = 0; col < 8; col++)
{
if (!BIT(data, col))
{
keycode = (row * 8) + col;
}
}
}
}
if (keycode != 0xff)
{
// key pressed
if (keycode != m_keylatch)
{
m_keylatch = keycode;
trigger_interrupt(INT_KEYBOARD);
}
}
else
{
// key released
if (m_keylatch != 0xff)
{
m_keylatch |= 0x80;
trigger_interrupt(INT_KEYBOARD);
}
}
}
void portfolio_state::scan_keyboard()
{
UINT8 keycode = 0xff;
static const char *const keynames[] = { "ROW0", "ROW1", "ROW2", "ROW3", "ROW4", "ROW5", "ROW6", "ROW7" };
for (int row = 0; row < 8; row++)
{
UINT8 data = input_port_read(machine(), keynames[row]);
if (data != 0xff)
{
for (int col = 0; col < 8; col++)
{
if (!BIT(data, col))
{
keycode = (row * 8) + col;
}
}
}
}
if (keycode != 0xff)
{
// key pressed
if (keycode != m_keylatch)
{
m_keylatch = keycode;
trigger_interrupt(INT_KEYBOARD);
}
}
else
{
// key released
if (m_keylatch != 0xff)
{
m_keylatch |= 0x80;
trigger_interrupt(INT_KEYBOARD);
}
}
}
void z80dma_device::timerproc()
{
int done;
if (--m_cur_cycle)
{
return;
}
if (m_is_read && !is_ready()) return;
if (m_is_read)
{
/* TODO: there's a nasty recursion bug with Alpha for Sharp X1 Turbo on the transfers with this function! */
do_read();
done = 0;
m_is_read = false;
m_cur_cycle = (PORTA_IS_SOURCE ? PORTA_CYCLE_LEN : PORTB_CYCLE_LEN);
}
else
{
done = do_write();
m_is_read = true;
m_cur_cycle = (PORTB_IS_SOURCE ? PORTA_CYCLE_LEN : PORTB_CYCLE_LEN);
}
if (done)
{
m_dma_enabled = 0; //FIXME: Correct?
m_status = 0x09;
m_status |= !is_ready() << 1; // ready line status
if(TRANSFER_MODE == TM_TRANSFER) m_status |= 0x10; // no match found
update_status();
if (LOG) logerror("Z80DMA '%s' End of Block\n", tag());
if (INT_ON_END_OF_BLOCK)
{
trigger_interrupt(INT_END_OF_BLOCK);
}
if (AUTO_RESTART)
{
if (LOG) logerror("Z80DMA '%s' Auto Restart\n", tag());
m_dma_enabled = 1;
m_addressA = PORTA_ADDRESS;
m_addressB = PORTB_ADDRESS;
m_count = BLOCKLEN;
m_status |= 0x30;
}
}
}
void portfolio_state::scan_keyboard()
{
uint8_t keycode = 0xff;
for (int row = 0; row < 8; row++)
{
uint8_t data = static_cast<int>(m_y[row]->read());
if (data != 0xff)
{
for (int col = 0; col < 8; col++)
{
if (!BIT(data, col))
{
keycode = (row * 8) + col;
}
}
}
}
if (keycode != 0xff)
{
// key pressed
if (keycode != m_keylatch)
{
m_keylatch = keycode;
trigger_interrupt(INT_KEYBOARD);
}
}
else
{
// key released
if (!(m_keylatch & 0x80))
{
m_keylatch |= 0x80;
trigger_interrupt(INT_KEYBOARD);
}
}
}
void i8214_device::check_interrupt()
{
if (m_int_dis || !m_etlg || !m_inte) return;
for (int level = 7; level >= 0; level--)
{
if (!BIT(m_r, 7 - level))
{
if (m_sgs)
{
if (level > m_current_status)
{
trigger_interrupt(level);
}
}
else
{
trigger_interrupt(level);
}
}
}
}
void z80dma_device::rdy_write_callback(int state)
{
// normalize state
m_rdy = state;
m_status = (m_status & 0xFD) | (!is_ready() << 1);
update_status();
if (is_ready() && INT_ON_READY)
{
trigger_interrupt(INT_RDY);
}
}
/*
* The typical workload of the driver:
* Handle the network interface interrupts.
*/
static void
de600_interrupt(int reg_ptr)
{
int irq = -(((struct pt_regs *)reg_ptr)->orig_eax+2);
struct device *dev = irq2dev_map[irq];
byte irq_status;
int retrig = 0;
int boguscount = 0;
/* This might just as well be deleted now, no crummy drivers present :-) */
if ((dev == NULL) || (dev->start == 0) || (DE600_IRQ != irq)) {
printk("%s: bogus interrupt %d\n", dev?dev->name:"DE-600", irq);
return;
}
dev->interrupt = 1;
select_nic();
irq_status = de600_read_status(dev);
do {
PRINTK(("de600_interrupt (%02X)\n", irq_status));
if (irq_status & RX_GOOD)
de600_rx_intr(dev);
else if (!(irq_status & RX_BUSY))
de600_put_command(RX_ENABLE);
/* Any transmission in progress? */
if (free_tx_pages < TX_PAGES)
retrig = de600_tx_intr(dev, irq_status);
else
retrig = 0;
irq_status = de600_read_status(dev);
} while ( (irq_status & RX_GOOD) || ((++boguscount < 100) && retrig) );
/*
* Yeah, it _looks_ like busy waiting, smells like busy waiting
* and I know it's not PC, but please, it will only occur once
* in a while and then only for a loop or so (< 1ms for sure!)
*/
/* Enable adapter interrupts */
dev->interrupt = 0;
select_prn();
if (retrig)
trigger_interrupt(dev);
sti();
return;
}
void z80dma_device::do_search()
{
UINT8 load_byte,match_byte;
load_byte = m_latch | MASK_BYTE;
match_byte = MATCH_BYTE | MASK_BYTE;
//if (LOG) logerror("%02x %02x\n",load_byte,match_byte));
if (load_byte == match_byte)
{
if (INT_ON_MATCH)
{
trigger_interrupt(INT_MATCH);
}
}
}
inline void i8214_device::check_interrupt()
{
int level;
if (m_int_dis || !m_etlg) return;
for (level = 7; level >= 0; level--)
{
if (!BIT(m_r, 7 - level))
{
if (m_sgs)
{
if (level > m_b)
{
trigger_interrupt(level);
}
}
else
{
trigger_interrupt(level);
}
}
}
}
void pit68230_device::tick_clock()
{
if (m_tcr & REG_TCR_TIMER_ENABLE)
{
if (m_cntr-- == 0) // Zero detect
{
LOGINT("Timer reached zero!\n");
if ((m_tcr & REG_TCR_ZD) == 0)
m_cntr = m_cpr;
else // mask off to 24 bit on rollover
m_cntr &= 0xffffff;
m_tsr = 1;
trigger_interrupt(INT_TIMER);
}
}
}
static irqreturn_t de600_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
struct net_device *dev = dev_id;
u8 irq_status;
int retrig = 0;
int boguscount = 0;
/* This might just as well be deleted now, no crummy drivers present :-) */
if ((dev == NULL) || (DE600_IRQ != irq)) {
printk(KERN_ERR "%s: bogus interrupt %d\n", dev?dev->name:"DE-600", irq);
return IRQ_NONE;
}
spin_lock(&de600_lock);
select_nic();
irq_status = de600_read_status(dev);
do {
PRINTK(("de600_interrupt (%02X)\n", irq_status));
if (irq_status & RX_GOOD)
de600_rx_intr(dev);
else if (!(irq_status & RX_BUSY))
de600_put_command(RX_ENABLE);
/* Any transmission in progress? */
if (free_tx_pages < TX_PAGES)
retrig = de600_tx_intr(dev, irq_status);
else
retrig = 0;
irq_status = de600_read_status(dev);
} while ( (irq_status & RX_GOOD) || ((++boguscount < 100) && retrig) );
/*
* Yeah, it _looks_ like busy waiting, smells like busy waiting
* and I know it's not PC, but please, it will only occur once
* in a while and then only for a loop or so (< 1ms for sure!)
*/
/* Enable adapter interrupts */
select_prn();
if (retrig)
trigger_interrupt(dev);
spin_unlock(&de600_lock);
return IRQ_HANDLED;
}
void z80dma_device::timerproc()
{
int done;
if (--m_cur_cycle)
{
return;
}
if (m_is_read && !is_ready()) return;
if (m_is_read)
{
do_read();
done = 0;
m_is_read = false;
m_cur_cycle = (PORTA_IS_SOURCE ? PORTA_CYCLE_LEN : PORTB_CYCLE_LEN);
}
else
{
done = do_write();
m_is_read = true;
m_cur_cycle = (PORTB_IS_SOURCE ? PORTA_CYCLE_LEN : PORTB_CYCLE_LEN);
}
if (done)
{
m_dma_enabled = 0; //FIXME: Correct?
m_status = 0x19;
m_status |= !is_ready() << 1; // ready line status
if(TRANSFER_MODE == TM_TRANSFER) m_status |= 0x10; // no match found
update_status();
if (LOG) logerror("Z80DMA '%s' End of Block\n", tag());
if (INT_ON_END_OF_BLOCK)
{
trigger_interrupt(INT_END_OF_BLOCK);
}
}
}
static irqreturn_t de600_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
u8 irq_status;
int retrig = 0;
int boguscount = 0;
spin_lock(&de600_lock);
select_nic();
irq_status = de600_read_status(dev);
do {
PRINTK(("de600_interrupt (%02X)\n", irq_status));
if (irq_status & RX_GOOD)
de600_rx_intr(dev);
else if (!(irq_status & RX_BUSY))
de600_put_command(RX_ENABLE);
/* Any transmission in progress? */
if (free_tx_pages < TX_PAGES)
retrig = de600_tx_intr(dev, irq_status);
else
retrig = 0;
irq_status = de600_read_status(dev);
} while ( (irq_status & RX_GOOD) || ((++boguscount < 100) && retrig) );
/*
* Yeah, it _looks_ like busy waiting, smells like busy waiting
* and I know it's not PC, but please, it will only occur once
* in a while and then only for a loop or so (< 1ms for sure!)
*/
/* Enable adapter interrupts */
select_prn();
if (retrig)
trigger_interrupt(dev);
spin_unlock(&de600_lock);
return IRQ_HANDLED;
}
static irqreturn_t de600_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
u8 irq_status;
int retrig = 0;
int boguscount = 0;
spin_lock(&de600_lock);
select_nic();
irq_status = de600_read_status(dev);
do {
pr_debug("de600_interrupt (%02X)\n", irq_status);
if (irq_status & RX_GOOD)
de600_rx_intr(dev);
else if (!(irq_status & RX_BUSY))
de600_put_command(RX_ENABLE);
/* */
if (free_tx_pages < TX_PAGES)
retrig = de600_tx_intr(dev, irq_status);
else
retrig = 0;
irq_status = de600_read_status(dev);
} while ( (irq_status & RX_GOOD) || ((++boguscount < 100) && retrig) );
/*
*/
/* */
select_prn();
if (retrig)
trigger_interrupt(dev);
spin_unlock(&de600_lock);
return IRQ_HANDLED;
}
void zx8302_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (id)
{
case TIMER_BAUDX4:
m_baudx4 = !m_baudx4;
m_out_baudx4_cb(m_baudx4);
break;
case TIMER_RTC:
m_ctr++;
break;
case TIMER_GAP:
trigger_interrupt(INT_GAP);
break;
default:
break;
}
}
void zx8302_device::tra_complete()
{
m_status &= ~STATUS_TX_BUFFER_FULL;
trigger_interrupt(INT_TRANSMIT);
}
void crt9007_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
int x = m_screen->hpos();
int y = m_screen->vpos();
switch (id)
{
case TIMER_HSYNC:
m_hs = param;
if (LOG) logerror("CRT9007 '%s' y %03u x %04u : HS %u\n", tag(), y, x, m_hs);
m_out_hs_func(m_hs);
update_cblank_line();
update_hsync_timer(param);
break;
case TIMER_VSYNC:
m_vs = param;
if (LOG) logerror("CRT9007 '%s' y %03u x %04u : VS %u\n", tag(), y, x, m_vs);
m_out_vs_func(param);
if (m_vs)
{
// reset all other bits except Light Pen Update to logic 0
m_status &= STATUS_LIGHT_PEN_UPDATE;
}
else
{
trigger_interrupt(IE_VERTICAL_RETRACE);
update_cblank_line();
}
update_vsync_timer(param);
break;
case TIMER_VLT:
m_vlt = param;
if (LOG) logerror("CRT9007 '%s' y %03u x %04u : VLT %u\n", tag(), y, x, m_vlt);
m_out_vlt_func(param);
update_vlt_timer(param);
break;
case TIMER_CURS:
if (LOG) logerror("CRT9007 '%s' y %03u x %04u : CURS %u\n", tag(), y, x, param);
m_out_curs_func(param);
update_curs_timer(param);
break;
case TIMER_DRB:
m_drb = param;
if (LOG) logerror("CRT9007 '%s' y %03u x %04u : DRB %u\n", tag(), y, x, m_drb);
m_out_drb_func(param);
if (!m_drb && !DMA_DISABLE)
{
// start DMA burst sequence
m_dma_count = CHARACTERS_PER_DATA_ROW;
m_dma_burst = DMA_BURST_COUNT ? (DMA_BURST_COUNT * 4) : CHARACTERS_PER_DATA_ROW;
m_dma_delay = DMA_BURST_DELAY;
m_dmar = 1;
if (LOG) logerror("CRT9007 '%s' DMAR 1\n", tag());
m_out_dmar_func(ASSERT_LINE);
}
update_drb_timer(param);
break;
case TIMER_DMA:
readbyte(AUXILIARY_ADDRESS_2);
update_dma_timer();
break;
}
}
int z80dma_device::do_write()
{
int done = 0;
UINT8 mode;
mode = TRANSFER_MODE;
if (m_count == 0x0000)
{
//FIXME: Any signal here
}
switch(mode) {
case TM_TRANSFER:
if (PORTA_IS_SOURCE)
{
if (PORTB_MEMORY)
devcb_call_write8(&m_out_mreq_func, m_addressB, m_latch);
else
devcb_call_write8(&m_out_iorq_func, m_addressB, m_latch);
if (LOG) logerror("Z80DMA '%s' B dst: %04x %s\n", tag(), m_addressB, PORTB_MEMORY ? "mem" : "i/o");
m_addressB += PORTB_FIXED ? 0 : PORTB_INC ? PORTB_STEP : -PORTB_STEP;
}
else
{
if (PORTA_MEMORY)
devcb_call_write8(&m_out_mreq_func, m_addressA, m_latch);
else
devcb_call_write8(&m_out_iorq_func, m_addressA, m_latch);
if (LOG) logerror("Z80DMA '%s' A dst: %04x %s\n", tag(), m_addressA, PORTA_MEMORY ? "mem" : "i/o");
m_addressA += PORTA_FIXED ? 0 : PORTA_INC ? PORTA_STEP : -PORTA_STEP;
}
m_count--;
done = (m_count == 0xFFFF);
break;
case TM_SEARCH:
{
UINT8 load_byte,match_byte;
load_byte = m_latch | MASK_BYTE;
match_byte = MATCH_BYTE | MASK_BYTE;
//if (LOG) logerror("%02x %02x\n",load_byte,match_byte));
if (load_byte == match_byte)
{
if (INT_ON_MATCH)
{
trigger_interrupt(INT_MATCH);
}
}
m_count--;
done = (m_count == 0xFFFF); //correct?
}
break;
case TM_SEARCH_TRANSFER:
fatalerror("z80dma_do_operation: unhandled search & transfer mode !\n");
break;
default:
logerror("z80dma_do_operation: invalid mode %d!\n", mode);
break;
}
if (done)
{
//FIXME: interrupt ?
}
return done;
}
