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0e627f1a54
mame/src/emu/sound/2610intf.c
Aaron Giles 0e627f1a54 Convert emu_timers to objects. Move implementation and management of 
timers into the scheduler. Retain TIMER devices as a separate wrapper
in timer.c/.h. Inline wrappers are currently provided for all timer
operations; a future update will bulk clean these up.

Rather than using macros which hide generation of a string-ified name
for callback functions, the new methods require passing both a function
pointer plus a name string. A new macro FUNC() can be used to output
both, and another macro MFUNC() can be used to output a stub-wrapped
class member as a callback.

Also added a time() method on the machine, so that machine->time() gives
the current emulated time. A wrapper for timer_get_time is currently
provided but will be bulk replaced in the future.

For this update, convert all classic timer_alloc, timer_set, 
timer_pulse, and timer_call_after_resynch calls into method calls on 
the scheduler. 

For new device timers, added methods to the device_t class that make 
creating and managing these much simpler. Modern devices were updated
to use these.

Here are the regexes used; some manual cleanup (compiler-caught) will
be needed since regex doesn't handle nested parentheses cleanly

1. Convert timer_call_after_resynch calls
timer_call_after_resynch( *)\(( *)([^,;]+), *([^,;]+), *([^,;]+), *([^);]+)\)
\3->scheduler().synchronize\1\(\2FUNC(\6), \5, \4\)

2. Clean up trailing 0, NULL parameters
(synchronize[^;]+), 0, NULL\)
\1)

3. Clean up trailing NULL parameters
(synchronize[^;]+), NULL\)
\1)

4. Clean up completely empty parameter lists
synchronize\(FUNC\(NULL\)\)
synchronize()

5. Convert timer_set calls
timer_set( *)\(( *)([^,;]+), *([^,;]+), *([^,;]+), *([^,;]+), *([^);]+)\)
\3->scheduler().timer_set\1\(\2\4, FUNC(\7), \6, \5\)

6. Clean up trailing 0, NULL parameters
(timer_set[^;]+), 0, NULL\)
\1)

7. Clean up trailing NULL parameters
(timer_set[^;]+), NULL\)
\1)

8. Convert timer_set calls
timer_pulse( *)\(( *)([^,;]+), *([^,;]+), *([^,;]+), *([^,;]+), *([^);]+)\)
\3->scheduler().timer_pulse\1\(\2\4, FUNC(\7), \6, \5\)

9. Clean up trailing 0, NULL parameters
(timer_pulse[^;]+), 0, NULL\)
\1)

10. Clean up trailing NULL parameters
(timer_pulse[^;]+), NULL\)
\1)

11. Convert timer_alloc calls
timer_alloc( *)\(( *)([^,;]+), *([^,;]+), *([^);]+)\)
\3->scheduler().timer_alloc\1\(\2FUNC(\4), \5\)

12. Clean up trailing NULL parameters
(timer_alloc[^;]+), NULL\)
\1)

13. Clean up trailing 0 parameters
(timer_alloc[^;]+), 0\)
\1)

14. Fix oddities introduced
\&m_machine->scheduler()
m_machine.scheduler()
2011-02-06 07:15:01 +00:00

262 lines
7.3 KiB
C
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/***************************************************************************
2610intf.c
The YM2610 emulator supports up to 2 chips.
Each chip has the following connections:
- Status Read / Control Write A
- Port Read / Data Write A
- Control Write B
- Data Write B
***************************************************************************/
#include "emu.h"
#include "ay8910.h"
#include "2610intf.h"
#include "fm.h"
typedef struct _ym2610_state ym2610_state;
struct _ym2610_state
{
sound_stream * stream;
emu_timer * timer[2];
void * chip;
void * psg;
const ym2610_interface *intf;
device_t *device;
};
INLINE ym2610_state *get_safe_token(device_t *device)
{
assert(device != NULL);
assert(device->type() == YM2610 || device->type() == YM2610B);
return (ym2610_state *)downcast<legacy_device_base *>(device)->token();
}
static void psg_set_clock(void *param, int clock)
{
ym2610_state *info = (ym2610_state *)param;
ay8910_set_clock_ym(info->psg, clock);
}
static void psg_write(void *param, int address, int data)
{
ym2610_state *info = (ym2610_state *)param;
ay8910_write_ym(info->psg, address, data);
}
static int psg_read(void *param)
{
ym2610_state *info = (ym2610_state *)param;
return ay8910_read_ym(info->psg);
}
static void psg_reset(void *param)
{
ym2610_state *info = (ym2610_state *)param;
ay8910_reset_ym(info->psg);
}
static const ssg_callbacks psgintf =
{
psg_set_clock,
psg_write,
psg_read,
psg_reset
};
/*------------------------- TM2610 -------------------------------*/
/* IRQ Handler */
static void IRQHandler(void *param,int irq)
{
ym2610_state *info = (ym2610_state *)param;
if(info->intf->handler) info->intf->handler(info->device, irq);
}
/* Timer overflow callback from timer.c */
static TIMER_CALLBACK( timer_callback_0 )
{
ym2610_state *info = (ym2610_state *)ptr;
ym2610_timer_over(info->chip,0);
}
static TIMER_CALLBACK( timer_callback_1 )
{
ym2610_state *info = (ym2610_state *)ptr;
ym2610_timer_over(info->chip,1);
}
static void timer_handler(void *param,int c,int count,int clock)
{
ym2610_state *info = (ym2610_state *)param;
if( count == 0 )
{ /* Reset FM Timer */
timer_enable(info->timer[c], 0);
}
else
{ /* Start FM Timer */
attotime period = attotime::from_hz(clock) * count;
if (!timer_enable(info->timer[c], 1))
timer_adjust_oneshot(info->timer[c], period, 0);
}
}
/* update request from fm.c */
void ym2610_update_request(void *param)
{
ym2610_state *info = (ym2610_state *)param;
info->stream->update();
}
static STREAM_UPDATE( ym2610_stream_update )
{
ym2610_state *info = (ym2610_state *)param;
ym2610_update_one(info->chip, outputs, samples);
}
static STREAM_UPDATE( ym2610b_stream_update )
{
ym2610_state *info = (ym2610_state *)param;
ym2610b_update_one(info->chip, outputs, samples);
}
static STATE_POSTLOAD( ym2610_intf_postload )
{
ym2610_state *info = (ym2610_state *)param;
ym2610_postload(info->chip);
}
static DEVICE_START( ym2610 )
{
static const ym2610_interface generic_2610 = { 0 };
static const ay8910_interface generic_ay8910 =
{
AY8910_LEGACY_OUTPUT | AY8910_SINGLE_OUTPUT,
AY8910_DEFAULT_LOADS,
DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL
};
const ym2610_interface *intf = device->baseconfig().static_config() ? (const ym2610_interface *)device->baseconfig().static_config() : &generic_2610;
int rate = device->clock()/72;
void *pcmbufa,*pcmbufb;
int pcmsizea,pcmsizeb;
ym2610_state *info = get_safe_token(device);
astring name;
device_type type = device->type();
info->intf = intf;
info->device = device;
info->psg = ay8910_start_ym(NULL, device->type(), device, device->clock(), &generic_ay8910);
assert_always(info->psg != NULL, "Error creating YM2610/AY8910 chip");
/* Timer Handler set */
info->timer[0] = device->machine->scheduler().timer_alloc(FUNC(timer_callback_0), info);
info->timer[1] = device->machine->scheduler().timer_alloc(FUNC(timer_callback_1), info);
/* stream system initialize */
info->stream = device->machine->sound().stream_alloc(*device,0,2,rate,info,(type == YM2610) ? ym2610_stream_update : ym2610b_stream_update);
/* setup adpcm buffers */
pcmbufa = *device->region();
pcmsizea = device->region()->bytes();
name.printf("%s.deltat", device->tag());
pcmbufb = (void *)(device->machine->region(name)->base());
pcmsizeb = device->machine->region(name)->bytes();
if (pcmbufb == NULL || pcmsizeb == 0)
{
pcmbufb = pcmbufa;
pcmsizeb = pcmsizea;
}
/**** initialize YM2610 ****/
info->chip = ym2610_init(info,device,device->clock(),rate,
pcmbufa,pcmsizea,pcmbufb,pcmsizeb,
timer_handler,IRQHandler,&psgintf);
assert_always(info->chip != NULL, "Error creating YM2610 chip");
state_save_register_postload(device->machine, ym2610_intf_postload, info);
}
static DEVICE_STOP( ym2610 )
{
ym2610_state *info = get_safe_token(device);
ym2610_shutdown(info->chip);
ay8910_stop_ym(info->psg);
}
static DEVICE_RESET( ym2610 )
{
ym2610_state *info = get_safe_token(device);
ym2610_reset_chip(info->chip);
}
READ8_DEVICE_HANDLER( ym2610_r )
{
ym2610_state *info = get_safe_token(device);
return ym2610_read(info->chip, offset & 3);
}
WRITE8_DEVICE_HANDLER( ym2610_w )
{
ym2610_state *info = get_safe_token(device);
ym2610_write(info->chip, offset & 3, data);
}
READ8_DEVICE_HANDLER( ym2610_status_port_a_r ) { return ym2610_r(device, 0); }
READ8_DEVICE_HANDLER( ym2610_status_port_b_r ) { return ym2610_r(device, 2); }
READ8_DEVICE_HANDLER( ym2610_read_port_r ) { return ym2610_r(device, 1); }
WRITE8_DEVICE_HANDLER( ym2610_control_port_a_w ) { ym2610_w(device, 0, data); }
WRITE8_DEVICE_HANDLER( ym2610_control_port_b_w ) { ym2610_w(device, 2, data); }
WRITE8_DEVICE_HANDLER( ym2610_data_port_a_w ) { ym2610_w(device, 1, data); }
WRITE8_DEVICE_HANDLER( ym2610_data_port_b_w ) { ym2610_w(device, 3, data); }
/**************************************************************************
* Generic get_info
**************************************************************************/
DEVICE_GET_INFO( ym2610 )
{
switch (state)
{
/* --- the following bits of info are returned as 64-bit signed integers --- */
case DEVINFO_INT_TOKEN_BYTES: info->i = sizeof(ym2610_state); break;
/* --- the following bits of info are returned as pointers to data or functions --- */
case DEVINFO_FCT_START: info->start = DEVICE_START_NAME( ym2610 ); break;
case DEVINFO_FCT_STOP: info->stop = DEVICE_STOP_NAME( ym2610 ); break;
case DEVINFO_FCT_RESET: info->reset = DEVICE_RESET_NAME( ym2610 ); break;
/* --- the following bits of info are returned as NULL-terminated strings --- */
case DEVINFO_STR_NAME: strcpy(info->s, "YM2610"); break;
case DEVINFO_STR_FAMILY: strcpy(info->s, "Yamaha FM"); break;
case DEVINFO_STR_VERSION: strcpy(info->s, "1.0"); break;
case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
}
}
DEVICE_GET_INFO( ym2610b )
{
switch (state)
{
/* --- the following bits of info are returned as NULL-terminated strings --- */
case DEVINFO_STR_NAME: strcpy(info->s, "YM2610B"); break;
default: DEVICE_GET_INFO_CALL(ym2610); break;
}
}
DEFINE_LEGACY_SOUND_DEVICE(YM2610, ym2610);
DEFINE_LEGACY_SOUND_DEVICE(YM2610B, ym2610b);
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