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moved block_count to the device, renamed some ide commands to make them closer to the spec & also use the block count for triggering the first irq on read/write multiple (nw)

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This commit is contained in:
smf- 2013-06-12 18:16:53 +00:00
parent 4701b261cb
commit 6f67159d96
4 changed files with 26 additions and 28 deletions
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51
src/emu/machine/idectrl.c
View File

@ -57,14 +57,14 @@
#define IDE_BANK2_CONFIG_REGISTER 8
#define IDE_BANK2_CONFIG_DATA 0xc
#define IDE_COMMAND_READ_MULTIPLE 0x20
#define IDE_COMMAND_READ_MULTIPLE_NORETRY 0x21
#define IDE_COMMAND_WRITE_MULTIPLE 0x30
#define IDE_COMMAND_WRITE_MULTIPLE_NORETRY 0x31
#define IDE_COMMAND_READ_SECTORS 0x20
#define IDE_COMMAND_READ_SECTORS_NORETRY 0x21
#define IDE_COMMAND_WRITE_SECTORS 0x30
#define IDE_COMMAND_WRITE_SECTORS_NORETRY 0x31
#define IDE_COMMAND_DIAGNOSTIC 0x90
#define IDE_COMMAND_SET_CONFIG 0x91
#define IDE_COMMAND_READ_MULTIPLE_BLOCK 0xc4
#define IDE_COMMAND_WRITE_MULTIPLE_BLOCK 0xc5
#define IDE_COMMAND_READ_MULTIPLE 0xc4
#define IDE_COMMAND_WRITE_MULTIPLE 0xc5
#define IDE_COMMAND_SET_BLOCK_COUNT 0xc6
#define IDE_COMMAND_READ_DMA 0xc8
#define IDE_COMMAND_WRITE_DMA 0xca
@ -72,8 +72,8 @@
#define IDE_COMMAND_SET_FEATURES 0xef
#define IDE_COMMAND_SECURITY_UNLOCK 0xf2
#define IDE_COMMAND_UNKNOWN_F9 0xf9
#define IDE_COMMAND_VERIFY_MULTIPLE 0x40
#define IDE_COMMAND_VERIFY_NORETRY 0x41
#define IDE_COMMAND_VERIFY_SECTORS 0x40
#define IDE_COMMAND_VERIFY_SECTORS_NORETRY 0x41
#define IDE_COMMAND_ATAPI_IDENTIFY 0xa1
#define IDE_COMMAND_RECALIBRATE 0x10
#define IDE_COMMAND_SEEK 0x70
@ -336,7 +336,7 @@ void ide_controller_device::read_sector_done()
sectors_until_int--;
if (sectors_until_int == 0 || dev->sector_count == 1)
{
sectors_until_int = ((command == IDE_COMMAND_READ_MULTIPLE_BLOCK) ? block_count : 1);
sectors_until_int = ((command == IDE_COMMAND_READ_MULTIPLE) ? dev->block_count : 1);
set_irq(ASSERT_LINE);
}
@ -369,7 +369,7 @@ void ide_controller_device::read_first_sector()
status |= IDE_STATUS_BUSY;
/* just set a timer */
if (command == IDE_COMMAND_READ_MULTIPLE_BLOCK)
if (command == IDE_COMMAND_READ_MULTIPLE)
{
int new_lba = dev->lba_address();
attotime seek_time;
@ -392,7 +392,7 @@ void ide_controller_device::read_next_sector()
/* mark ourselves busy */
status |= IDE_STATUS_BUSY;
if (command == IDE_COMMAND_READ_MULTIPLE_BLOCK)
if (command == IDE_COMMAND_READ_MULTIPLE)
{
if (sectors_until_int != 1)
/* make ready now */
@ -425,7 +425,7 @@ void ide_controller_device::continue_write()
status &= ~IDE_STATUS_BUFFER_READY;
status |= IDE_STATUS_BUSY;
if (command == IDE_COMMAND_WRITE_MULTIPLE_BLOCK)
if (command == IDE_COMMAND_WRITE_MULTIPLE)
{
if (sectors_until_int != 1)
{
@ -543,7 +543,7 @@ void ide_controller_device::write_sector_done()
/* signal an interrupt */
if (--sectors_until_int == 0 || dev->sector_count == 1)
{
sectors_until_int = ((command == IDE_COMMAND_WRITE_MULTIPLE_BLOCK) ? block_count : 1);
sectors_until_int = ((command == IDE_COMMAND_WRITE_MULTIPLE) ? dev->block_count : 1);
set_irq(ASSERT_LINE);
}
@ -591,8 +591,8 @@ void ide_controller_device::handle_command(UINT8 _command)
command = _command;
switch (command)
{
case IDE_COMMAND_READ_MULTIPLE:
case IDE_COMMAND_READ_MULTIPLE_NORETRY:
case IDE_COMMAND_READ_SECTORS:
case IDE_COMMAND_READ_SECTORS_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(), dev->sector_count));
@ -606,13 +606,13 @@ void ide_controller_device::handle_command(UINT8 _command)
read_first_sector();
break;
case IDE_COMMAND_READ_MULTIPLE_BLOCK:
case IDE_COMMAND_READ_MULTIPLE:
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(), dev->sector_count));
/* reset the buffer */
dev->buffer_offset = 0;
sectors_until_int = 1;
sectors_until_int = dev->block_count;
dma_active = 0;
verify_only = 0;
@ -620,8 +620,8 @@ void ide_controller_device::handle_command(UINT8 _command)
read_first_sector();
break;
case IDE_COMMAND_VERIFY_MULTIPLE:
case IDE_COMMAND_VERIFY_NORETRY:
case IDE_COMMAND_VERIFY_SECTORS:
case IDE_COMMAND_VERIFY_SECTORS_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(), dev->sector_count));
@ -649,8 +649,8 @@ void ide_controller_device::handle_command(UINT8 _command)
read_first_sector();
break;
case IDE_COMMAND_WRITE_MULTIPLE:
case IDE_COMMAND_WRITE_MULTIPLE_NORETRY:
case IDE_COMMAND_WRITE_SECTORS:
case IDE_COMMAND_WRITE_SECTORS_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(), dev->sector_count));
@ -663,13 +663,13 @@ void ide_controller_device::handle_command(UINT8 _command)
status |= IDE_STATUS_BUFFER_READY;
break;
case IDE_COMMAND_WRITE_MULTIPLE_BLOCK:
case IDE_COMMAND_WRITE_MULTIPLE:
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(), dev->sector_count));
/* reset the buffer */
dev->buffer_offset = 0;
sectors_until_int = 1;
sectors_until_int = dev->block_count;
dma_active = 0;
/* mark the buffer ready */
@ -780,7 +780,7 @@ void ide_controller_device::handle_command(UINT8 _command)
case IDE_COMMAND_SET_BLOCK_COUNT:
LOGPRINT(("IDE Set block count (%02X)\n", dev->sector_count));
block_count = dev->sector_count;
dev->block_count = dev->sector_count;
// judge dredd wants 'drive ready' on this command
status |= IDE_STATUS_DRIVE_READY;
@ -1274,7 +1274,6 @@ ide_controller_device::ide_controller_device(const machine_config &mconfig, devi
error(0),
command(0),
interrupt_pending(0),
block_count(0),
sectors_until_int(0),
verify_only(0),
config_unknown(0),
@ -1292,7 +1291,6 @@ ide_controller_device::ide_controller_device(const machine_config &mconfig, cons
error(0),
command(0),
interrupt_pending(0),
block_count(0),
sectors_until_int(0),
verify_only(0),
config_unknown(0),
@ -1324,7 +1322,6 @@ void ide_controller_device::device_start()
save_item(NAME(command));
save_item(NAME(interrupt_pending));
save_item(NAME(block_count));
save_item(NAME(sectors_until_int));
save_item(NAME(dma_active));

1
src/emu/machine/idectrl.h
View File

@ -132,7 +132,6 @@ private:
UINT8 dma_active;
UINT8 interrupt_pending;
UINT16 block_count;
UINT16 sectors_until_int;
UINT8 verify_only;

1
src/emu/machine/idehd.c
View File

@ -262,6 +262,7 @@ void ide_hdd_device::device_start()
save_item(NAME(user_password_enable));
save_item(NAME(gnetreadlock));
save_item(NAME(block_count));
}
//-------------------------------------------------

1
src/emu/machine/idehd.h
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@ -34,6 +34,7 @@ public:
UINT8 adapter_control;
UINT8 precomp_offset;
UINT16 sector_count;
UINT16 block_count;
UINT8 master_password_enable;
UINT8 user_password_enable;