void handle_command(struct ide_state *ide, UINT8 command)
{
/* implicitly clear interrupts here */
clear_interrupt(ide);
ide->command = command;
switch (command)
{
case IDE_COMMAND_READ_MULTIPLE:
case IDE_COMMAND_READ_MULTIPLE_ONCE:
LOGPRINT(("IDE Read multiple: C=%d H=%d S=%d LBA=%d count=%d\n",
ide->cur_cylinder, ide->cur_head, ide->cur_sector, lba_address(ide), ide->sector_count));
/* reset the buffer */
ide->buffer_offset = 0;
ide->sectors_until_int = 1;
ide->dma_active = 0;
/* start the read going */
read_first_sector(ide);
break;
case IDE_COMMAND_READ_MULTIPLE_BLOCK:
LOGPRINT(("IDE Read multiple block: C=%d H=%d S=%d LBA=%d count=%d\n",
ide->cur_cylinder, ide->cur_head, ide->cur_sector, lba_address(ide), ide->sector_count));
/* reset the buffer */
ide->buffer_offset = 0;
ide->sectors_until_int = 1;
ide->dma_active = 0;
/* start the read going */
read_first_sector(ide);
break;
case IDE_COMMAND_READ_DMA:
LOGPRINT(("IDE Read multiple DMA: C=%d H=%d S=%d LBA=%d count=%d\n",
ide->cur_cylinder, ide->cur_head, ide->cur_sector, lba_address(ide), ide->sector_count));
/* reset the buffer */
ide->buffer_offset = 0;
ide->sectors_until_int = ide->sector_count;
ide->dma_active = 1;
/* start the read going */
if (ide->bus_master_command & 1)
read_first_sector(ide);
break;
case IDE_COMMAND_WRITE_MULTIPLE:
LOGPRINT(("IDE Write multiple: C=%d H=%d S=%d LBA=%d count=%d\n",
ide->cur_cylinder, ide->cur_head, ide->cur_sector, lba_address(ide), ide->sector_count));
/* reset the buffer */
ide->buffer_offset = 0;
ide->sectors_until_int = 1;
ide->dma_active = 0;
/* mark the buffer ready */
ide->status |= IDE_STATUS_BUFFER_READY;
break;
case IDE_COMMAND_WRITE_MULTIPLE_BLOCK:
LOGPRINT(("IDE Write multiple block: C=%d H=%d S=%d LBA=%d count=%d\n",
ide->cur_cylinder, ide->cur_head, ide->cur_sector, lba_address(ide), ide->sector_count));
/* reset the buffer */
ide->buffer_offset = 0;
ide->sectors_until_int = 1;
ide->dma_active = 0;
/* mark the buffer ready */
ide->status |= IDE_STATUS_BUFFER_READY;
break;
case IDE_COMMAND_WRITE_DMA:
LOGPRINT(("IDE Write multiple DMA: C=%d H=%d S=%d LBA=%d count=%d\n",
ide->cur_cylinder, ide->cur_head, ide->cur_sector, lba_address(ide), ide->sector_count));
/* reset the buffer */
ide->buffer_offset = 0;
ide->sectors_until_int = ide->sector_count;
ide->dma_active = 1;
/* start the read going */
if (ide->bus_master_command & 1)
{
read_buffer_from_dma(ide);
continue_write(ide);
}
break;
case IDE_COMMAND_SECURITY_UNLOCK:
LOGPRINT(("IDE Security Unlock\n"));
/* reset the buffer */
ide->buffer_offset = 0;
ide->sectors_until_int = 0;
ide->dma_active = 0;
/* mark the buffer ready */
ide->status |= IDE_STATUS_BUFFER_READY;
signal_interrupt(ide);
break;
case IDE_COMMAND_GET_INFO:
LOGPRINT(("IDE Read features\n"));
/* reset the buffer */
ide->buffer_offset = 0;
ide->sector_count = 1;
/* build the features page */
memcpy(ide->buffer, ide->features, sizeof(ide->buffer));
/* indicate everything is ready */
ide->status |= IDE_STATUS_BUFFER_READY;
ide->status |= IDE_STATUS_SEEK_COMPLETE;
/* and clear the busy adn error flags */
ide->status &= ~IDE_STATUS_ERROR;
ide->status &= ~IDE_STATUS_BUSY;
/* clear the error too */
ide->error = IDE_ERROR_NONE;
/* signal an interrupt */
signal_delayed_interrupt(ide, MINIMUM_COMMAND_TIME, 1);
break;
case IDE_COMMAND_SET_CONFIG:
LOGPRINT(("IDE Set configuration (%d heads, %d sectors)\n", ide->cur_head + 1, ide->sector_count));
ide->num_sectors = ide->sector_count;
ide->num_heads = ide->cur_head + 1;
/* signal an interrupt */
signal_interrupt(ide);
break;
case IDE_COMMAND_UNKNOWN_F9:
/* only used by Killer Instinct AFAICT */
LOGPRINT(("IDE unknown command (F9)\n"));
/* signal an interrupt */
signal_interrupt(ide);
break;
case IDE_COMMAND_SET_FEATURES:
LOGPRINT(("IDE Set features (%02X %02X %02X %02X %02X)\n", ide->precomp_offset, ide->sector_count & 0xff, ide->cur_sector, ide->cur_cylinder & 0xff, ide->cur_cylinder >> 8));
/* signal an interrupt */
signal_delayed_interrupt(ide, MINIMUM_COMMAND_TIME, 0);
break;
case IDE_COMMAND_SET_BLOCK_COUNT:
LOGPRINT(("IDE Set block count (%02X)\n", ide->sector_count));
ide->block_count = ide->sector_count;
// judge dredd wants 'drive ready' on this command
ide->status |= IDE_STATUS_DRIVE_READY;
/* signal an interrupt */
signal_interrupt(ide);
break;
default:
LOGPRINT(("IDE unknown command (%02X)\n", command));
#ifdef MAME_DEBUG
{
extern int debug_key_pressed;
debug_key_pressed = 1;
}
#endif
break;
}
}
void ide_controller_device::handle_command(UINT8 _command)
{
UINT8 key[5];
ide_device_interface *dev = slot[cur_drive]->dev();
/* implicitly clear interrupts & dmarq here */
set_irq(CLEAR_LINE);
set_dmarq(0);
command = _command;
switch (command)
{
case IDE_COMMAND_READ_MULTIPLE:
case IDE_COMMAND_READ_MULTIPLE_NORETRY:
LOGPRINT(("IDE Read multiple: C=%d H=%d S=%d LBA=%d count=%d\n",
dev->cur_cylinder, dev->cur_head, dev->cur_sector, dev->lba_address(), sector_count));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = 1;
dma_active = 0;
verify_only = 0;
/* start the read going */
read_first_sector();
break;
case IDE_COMMAND_READ_MULTIPLE_BLOCK:
LOGPRINT(("IDE Read multiple block: C=%d H=%d S=%d LBA=%d count=%d\n",
dev->cur_cylinder, dev->cur_head, dev->cur_sector, dev->lba_address(), sector_count));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = 1;
dma_active = 0;
verify_only = 0;
/* start the read going */
read_first_sector();
break;
case IDE_COMMAND_VERIFY_MULTIPLE:
case IDE_COMMAND_VERIFY_NORETRY:
LOGPRINT(("IDE Read verify multiple with/without retries: C=%d H=%d S=%d LBA=%d count=%d\n",
dev->cur_cylinder, dev->cur_head, dev->cur_sector, dev->lba_address(), sector_count));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = 1;
dma_active = 0;
verify_only = 1;
/* start the read going */
read_first_sector();
break;
case IDE_COMMAND_READ_DMA:
LOGPRINT(("IDE Read multiple DMA: C=%d H=%d S=%d LBA=%d count=%d\n",
dev->cur_cylinder, dev->cur_head, dev->cur_sector, dev->lba_address(), sector_count));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = sector_count;
dma_active = 1;
verify_only = 0;
/* start the read going */
read_first_sector();
break;
case IDE_COMMAND_WRITE_MULTIPLE:
case IDE_COMMAND_WRITE_MULTIPLE_NORETRY:
LOGPRINT(("IDE Write multiple: C=%d H=%d S=%d LBA=%d count=%d\n",
dev->cur_cylinder, dev->cur_head, dev->cur_sector, dev->lba_address(), sector_count));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = 1;
dma_active = 0;
/* mark the buffer ready */
status |= IDE_STATUS_BUFFER_READY;
break;
case IDE_COMMAND_WRITE_MULTIPLE_BLOCK:
LOGPRINT(("IDE Write multiple block: C=%d H=%d S=%d LBA=%d count=%d\n",
dev->cur_cylinder, dev->cur_head, dev->cur_sector, dev->lba_address(), sector_count));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = 1;
dma_active = 0;
/* mark the buffer ready */
status |= IDE_STATUS_BUFFER_READY;
break;
case IDE_COMMAND_WRITE_DMA:
LOGPRINT(("IDE Write multiple DMA: C=%d H=%d S=%d LBA=%d count=%d\n",
dev->cur_cylinder, dev->cur_head, dev->cur_sector, dev->lba_address(), sector_count));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = sector_count;
dma_active = 1;
/* start the read going */
set_dmarq(1);
break;
case IDE_COMMAND_SECURITY_UNLOCK:
LOGPRINT(("IDE Security Unlock\n"));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = 0;
dma_active = 0;
/* mark the buffer ready */
status |= IDE_STATUS_BUFFER_READY;
set_irq(ASSERT_LINE);
break;
case IDE_COMMAND_GET_INFO:
LOGPRINT(("IDE Read features\n"));
/* reset the buffer */
buffer_offset = 0;
sector_count = 1;
/* build the features page */
memcpy(buffer, slot[cur_drive]->dev()->get_features(), sizeof(buffer));
/* indicate everything is ready */
status |= IDE_STATUS_BUFFER_READY;
status |= IDE_STATUS_SEEK_COMPLETE;
status |= IDE_STATUS_DRIVE_READY;
/* and clear the busy adn error flags */
status &= ~IDE_STATUS_ERROR;
status &= ~IDE_STATUS_BUSY;
/* clear the error too */
error = IDE_ERROR_NONE;
/* signal an interrupt */
signal_delayed_interrupt(MINIMUM_COMMAND_TIME, 1);
break;
case IDE_COMMAND_DIAGNOSTIC:
error = IDE_ERROR_DEFAULT;
/* signal an interrupt */
signal_delayed_interrupt(MINIMUM_COMMAND_TIME, 0);
break;
case IDE_COMMAND_RECALIBRATE:
/* clear the error too */
error = IDE_ERROR_NONE;
/* signal an interrupt */
signal_delayed_interrupt(MINIMUM_COMMAND_TIME, 0);
break;
case IDE_COMMAND_IDLE:
/* clear the error too */
error = IDE_ERROR_NONE;
/* for timeout disabled value is 0 */
sector_count = 0;
/* signal an interrupt */
set_irq(ASSERT_LINE);
break;
case IDE_COMMAND_SET_CONFIG:
LOGPRINT(("IDE Set configuration (%d heads, %d sectors)\n", dev->cur_head + 1, sector_count));
status &= ~IDE_STATUS_ERROR;
error = IDE_ERROR_NONE;
dev->set_geometry(sector_count,dev->cur_head + 1);
/* signal an interrupt */
signal_delayed_interrupt(MINIMUM_COMMAND_TIME, 0);
break;
case IDE_COMMAND_UNKNOWN_F9:
/* only used by Killer Instinct AFAICT */
LOGPRINT(("IDE unknown command (F9)\n"));
/* signal an interrupt */
set_irq(ASSERT_LINE);
break;
case IDE_COMMAND_SET_FEATURES:
LOGPRINT(("IDE Set features (%02X %02X %02X %02X %02X)\n", precomp_offset, sector_count & 0xff, dev->cur_sector, dev->cur_cylinder & 0xff, dev->cur_cylinder >> 8));
/* signal an interrupt */
signal_delayed_interrupt(MINIMUM_COMMAND_TIME, 0);
break;
case IDE_COMMAND_SET_BLOCK_COUNT:
LOGPRINT(("IDE Set block count (%02X)\n", sector_count));
block_count = sector_count;
// judge dredd wants 'drive ready' on this command
status |= IDE_STATUS_DRIVE_READY;
/* signal an interrupt */
set_irq(ASSERT_LINE);
break;
case IDE_COMMAND_TAITO_GNET_UNLOCK_1:
LOGPRINT(("IDE GNET Unlock 1\n"));
sector_count = 1;
status |= IDE_STATUS_DRIVE_READY;
status &= ~IDE_STATUS_ERROR;
set_irq(ASSERT_LINE);
break;
case IDE_COMMAND_TAITO_GNET_UNLOCK_2:
LOGPRINT(("IDE GNET Unlock 2\n"));
/* reset the buffer */
buffer_offset = 0;
sectors_until_int = 0;
dma_active = 0;
/* mark the buffer ready */
status |= IDE_STATUS_BUFFER_READY;
set_irq(ASSERT_LINE);
break;
case IDE_COMMAND_TAITO_GNET_UNLOCK_3:
LOGPRINT(("IDE GNET Unlock 3\n"));
/* key check */
dev->read_key(key);
if ((precomp_offset == key[0]) && (sector_count == key[1]) && (dev->cur_sector == key[2]) && (dev->cur_cylinder == (((UINT16)key[4]<<8)|key[3])))
{
gnetreadlock= 0;
}
/* update flags */
status |= IDE_STATUS_DRIVE_READY;
status &= ~IDE_STATUS_ERROR;
set_irq(ASSERT_LINE);
break;
case IDE_COMMAND_SEEK:
/*
cur_cylinder, cur_sector and cur_head
are all already set in this case so no need
so that implements actual seek
*/
/* clear the error too */
error = IDE_ERROR_NONE;
/* for timeout disabled value is 0 */
sector_count = 0;
/* signal an interrupt */
set_irq(ASSERT_LINE);
break;
default:
LOGPRINT(("IDE unknown command (%02X)\n", command));
status |= IDE_STATUS_ERROR;
error = IDE_ERROR_UNKNOWN_COMMAND;
set_irq(ASSERT_LINE);
//debugger_break(device->machine());
break;
}
}
