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// license:BSD-3-Clause
// copyright-holders:
/**************************************************************************************************
TODO:
- stub
- Incredibly common on motherboards (The Retro Web counts 451 MBs!)
**************************************************************************************************/
#include "emu.h"
#include "cmi8738.h"
#define VERBOSE (LOG_GENERAL)
//#define LOG_OUTPUT_FUNC osd_printf_info
#include "logmacro.h"
DEFINE_DEVICE_TYPE(CMI8738, cmi8738_device, "cmi8738", "C-Media CMI8738/C3DX sound card")
cmi8738_device::cmi8738_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
: pci_card_device(mconfig, type, tag, owner, clock)
{
}
cmi8738_device::cmi8738_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: cmi8738_device(mconfig, CMI8738, tag, owner, clock)
{
// https://admin.pci-ids.ucw.cz/read/PC/13f6/0111
set_ids(0x13f60111, 0x10, 0x040100, 0x13f60111);
}
void cmi8738_device::device_add_mconfig(machine_config &config)
{
}
void cmi8738_device::device_start()
{
pci_card_device::device_start();
// TODO: verify length
add_map( 256, M_IO, FUNC(cmi8738_device::map));
// INTA#
intr_pin = 1;
intr_line = 5;
minimum_grant = 0x02;
maximum_latency = 0x18;
}
void cmi8738_device::device_reset()
{
pci_card_device::device_reset();
command = 0x0000;
command_mask = 0x105;
// Fast Back-to-Back, medium DEVSEL#, has Capability List
status = 0x0290;
remap_cb();
}
u8 cmi8738_device::latency_timer_r()
{
return 0x20;
}
// NOTE: documentation claims "0x0c" which is clearly a mistake
u8 cmi8738_device::capptr_r()
{
return 0x40;
}
void cmi8738_device::config_map(address_map &map)
{
pci_card_device::config_map(map);
// TODO: values not provided by 2.2 documentation
// 1.2 doc really claims DDMA being there (???)
map(0x40, 0x43).lr32(NAME([] () { return 0x0601'0001; }));
}
void cmi8738_device::map(address_map &map)
{
}
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