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Add ability to throttle HDD DMA transfer speed. Fixes MT07242

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This commit is contained in:
Ted Green 2019-04-06 12:13:48 -06:00
parent f4a57bf2cc
commit d890319806
5 changed files with 43 additions and 24 deletions
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4
src/devices/machine/atahle.cpp
View File

@ -588,7 +588,7 @@ uint16_t ata_hle_device::read_cs0(offs_t offset, uint16_t mem_mask)
{
/* logit */
// if (offset != IDE_CS0_DATA_RW && offset != IDE_CS0_STATUS_R)
LOG(("%s:IDE cs0 read at %X, mem_mask=%d\n", machine().describe_context(), offset, mem_mask));
LOG(("%s:IDE cs0 read at %X, mem_mask=%X\n", machine().describe_context(), offset, mem_mask));
uint16_t result = 0xffff;
@ -692,7 +692,7 @@ uint16_t ata_hle_device::read_cs0(offs_t offset, uint16_t mem_mask)
/* log anything else */
default:
logerror("%s:unknown IDE cs0 read at %03X, mem_mask=%d\n", machine().describe_context(), offset, mem_mask);
logerror("%s:unknown IDE cs0 read at %03X, mem_mask=%X\n", machine().describe_context(), offset, mem_mask);
break;
}
}

22
src/devices/machine/idectrl.cpp
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@ -284,20 +284,25 @@ void bus_master_ide_controller_device::set_dmarq(int state)
READ32_MEMBER( bus_master_ide_controller_device::bmdma_r )
{
LOG("%s:ide_bus_master32_r(%d, %08x)\n", machine().describe_context(), offset, mem_mask);
uint32_t result = 0;
switch( offset )
{
case 0:
/* command register/status register */
return m_bus_master_command | (m_bus_master_status << 16);
result = m_bus_master_command | (m_bus_master_status << 16);
break;
case 1:
/* descriptor table register */
return m_bus_master_descriptor;
result = m_bus_master_descriptor;
break;
default:
result = 0xffffffff;
break;
}
return 0xffffffff;
LOG("%s:ide_bus_master32_r(%d, %08x, %08x)\n", machine().describe_context(), offset, mem_mask, result);
return result;
}
@ -396,8 +401,7 @@ void bus_master_ide_controller_device::execute_dma()
m_dma_bytes_left &= 0xfffe;
if (m_dma_bytes_left == 0)
m_dma_bytes_left = 0x10000;
// LOG("New DMA descriptor: address = %08X bytes = %04X last = %d\n", m_dma_address, m_dma_bytes_left, m_dma_last_buffer);
LOG("New DMA descriptor: address = %08X bytes = %04X last = %d time: %s\n", m_dma_address, m_dma_bytes_left, m_dma_last_buffer, machine().time().as_string());
}
if (m_bus_master_command & 8)
@ -424,7 +428,7 @@ void bus_master_ide_controller_device::execute_dma()
if (m_dma_bytes_left == 0 && m_dma_last_buffer)
{
m_bus_master_status &= ~IDE_BUSMASTER_STATUS_ACTIVE;
LOG("DMA Complete time: %s\n", machine().time().as_string());
if (m_dmarq)
{
LOG("DMA Out of buffer space!\n");

30
src/devices/machine/idehd.cpp
View File

@ -27,7 +27,8 @@ ata_mass_storage_device::ata_mass_storage_device(const machine_config &mconfig,
m_num_sectors(0),
m_num_heads(0), m_cur_lba(0), m_block_count(0), m_sectors_until_int(0), m_master_password_enable(0), m_user_password_enable(0),
m_master_password(nullptr),
m_user_password(nullptr)
m_user_password(nullptr),
m_dma_transfer_time(attotime::zero)
{
}
@ -426,7 +427,10 @@ void ata_mass_storage_device::fill_buffer()
if (m_sector_count > 0)
{
set_dasp(ASSERT_LINE);
start_busy(TIME_BETWEEN_SECTORS, PARAM_COMMAND);
if (m_command == IDE_COMMAND_READ_DMA)
start_busy(TIME_BETWEEN_SECTORS + m_dma_transfer_time, PARAM_COMMAND);
else
start_busy(TIME_BETWEEN_SECTORS, PARAM_COMMAND);
}
break;
}
@ -632,7 +636,7 @@ void ata_mass_storage_device::process_command()
{
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",
LOGPRINT(("IDE Read multiple: C=%u H=%d S=%u LBA=%u count=%u\n",
(m_cylinder_high << 8) | m_cylinder_low, m_device_head & IDE_DEVICE_HEAD_HS, m_sector_number, lba_address(), m_sector_count));
m_sectors_until_int = 1;
@ -642,7 +646,7 @@ void ata_mass_storage_device::process_command()
break;
case IDE_COMMAND_READ_MULTIPLE:
LOGPRINT(("IDE Read multiple block: C=%d H=%d S=%d LBA=%d count=%d\n",
LOGPRINT(("IDE Read multiple block: C=%u H=%u S=%u LBA=%u count=%u\n",
(m_cylinder_high << 8) | m_cylinder_low, m_device_head & IDE_DEVICE_HEAD_HS, m_sector_number, lba_address(), m_sector_count));
m_sectors_until_int = 1;
@ -653,7 +657,7 @@ void ata_mass_storage_device::process_command()
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",
LOGPRINT(("IDE Read verify multiple with/without retries: C=%u H=%u S=%u LBA=%u count=%u\n",
(m_cylinder_high << 8) | m_cylinder_low, m_device_head & IDE_DEVICE_HEAD_HS, m_sector_number, lba_address(), m_sector_count));
/* reset the buffer */
@ -664,7 +668,7 @@ void ata_mass_storage_device::process_command()
break;
case IDE_COMMAND_READ_DMA:
LOGPRINT(("IDE Read multiple DMA: C=%d H=%d S=%d LBA=%d count=%d\n",
LOGPRINT(("IDE Read multiple DMA: C=%u H=%u S=%u LBA=%u count=%u\n",
(m_cylinder_high << 8) | m_cylinder_low, m_device_head & IDE_DEVICE_HEAD_HS, m_sector_number, lba_address(), m_sector_count));
/* reset the buffer */
@ -676,7 +680,7 @@ void ata_mass_storage_device::process_command()
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",
LOGPRINT(("IDE Write multiple: C=%u H=%u S=%u LBA=%u count=%u\n",
(m_cylinder_high << 8) | m_cylinder_low, m_device_head & IDE_DEVICE_HEAD_HS, m_sector_number, lba_address(), m_sector_count));
/* reset the buffer */
@ -687,7 +691,7 @@ void ata_mass_storage_device::process_command()
break;
case IDE_COMMAND_WRITE_MULTIPLE:
LOGPRINT(("IDE Write multiple block: C=%d H=%d S=%d LBA=%d count=%d\n",
LOGPRINT(("IDE Write multiple block: C=%u H=%u S=%u LBA=%u count=%u\n",
(m_cylinder_high << 8) | m_cylinder_low, m_device_head & IDE_DEVICE_HEAD_HS, m_sector_number, lba_address(), m_sector_count));
/* reset the buffer */
@ -698,7 +702,7 @@ void ata_mass_storage_device::process_command()
break;
case IDE_COMMAND_WRITE_DMA:
LOGPRINT(("IDE Write multiple DMA: C=%d H=%d S=%d LBA=%d count=%d\n",
LOGPRINT(("IDE Write multiple DMA: C=%u H=%u S=%u LBA=%u count=%u\n",
(m_cylinder_high << 8) | m_cylinder_low, m_device_head & IDE_DEVICE_HEAD_HS, m_sector_number, lba_address(), m_sector_count));
/* reset the buffer */
@ -745,7 +749,7 @@ void ata_mass_storage_device::process_command()
break;
case IDE_COMMAND_SET_CONFIG:
LOGPRINT(("IDE Set configuration (%d heads, %d sectors)\n", (m_device_head & IDE_DEVICE_HEAD_HS) + 1, m_sector_count));
LOGPRINT(("IDE Set configuration (%u heads, %u sectors)\n", (m_device_head & IDE_DEVICE_HEAD_HS) + 1, m_sector_count));
start_busy(MINIMUM_COMMAND_TIME, PARAM_COMMAND);
break;
@ -758,7 +762,7 @@ void ata_mass_storage_device::process_command()
break;
case IDE_COMMAND_SET_BLOCK_COUNT:
LOGPRINT(("IDE Set block count (%d)\n", m_sector_count));
LOGPRINT(("IDE Set block count (%u)\n", m_sector_count));
m_block_count = m_sector_count;
@ -828,8 +832,8 @@ void ide_hdd_device::device_reset()
m_num_cylinders = hdinfo->cylinders;
m_num_sectors = hdinfo->sectors;
m_num_heads = hdinfo->heads;
if (PRINTF_IDE_COMMANDS) osd_printf_debug("CHS: %d %d %d\n", m_num_cylinders, m_num_heads, m_num_sectors);
osd_printf_debug("CHS: %d %d %d\n", m_num_cylinders, m_num_heads, m_num_sectors);
if (PRINTF_IDE_COMMANDS) osd_printf_debug("CHS: %u %u %u\n", m_num_cylinders, m_num_heads, m_num_sectors);
osd_printf_debug("CHS: %u %u %u\n", m_num_cylinders, m_num_heads, m_num_sectors);
}
// build the features page

3
src/devices/machine/idehd.h
View File

@ -34,6 +34,7 @@ public:
m_user_password_enable = (password != nullptr);
}
void set_dma_transfer_time(const attotime time) { m_dma_transfer_time = time; };
protected:
ata_mass_storage_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
@ -79,6 +80,8 @@ private:
uint8_t m_user_password_enable;
const uint8_t * m_master_password;
const uint8_t * m_user_password;
// DMA data transfer time for 1 sector
attotime m_dma_transfer_time;
};
// ======================> ide_hdd_device

8
src/mame/drivers/vegas.cpp
View File

@ -281,6 +281,7 @@
#include "cpu/adsp2100/adsp2100.h"
#include "cpu/mips/mips3.h"
#include "machine/idectrl.h"
#include "machine/idehd.h"
#include "machine/midwayic.h"
#include "machine/smc91c9x.h"
#include "machine/timekpr.h"
@ -527,6 +528,13 @@ void vegas_state::machine_reset()
m_wheel_force = 0;
m_wheel_offset = 0;
m_wheel_calibrated = false;
// Set the disk dma transfer speed
auto *hdd = subdevice<ide_hdd_device>(PCI_ID_IDE":ide:0:hdd");
hdd->set_dma_transfer_time(attotime::from_usec(15));
// Allow ultra dma
//uint16_t *identify_device = hdd->identify_device_buffer();
//identify_device[88] = 0x7f;
}
/*************************************