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author Aaron Giles <aaron@aarongiles.com>2010-01-18 09:34:43 +0000
committer Aaron Giles <aaron@aarongiles.com>2010-01-18 09:34:43 +0000
commite738b79785852050ce8b83e369a7fc4dd46a071b (patch)
tree1ac39e9f40790b375c57fea4e5d56ca8d132babc /src/emu/sound/fm.h
parent3f87f47a2ecdccb9d9627d0d52b76f262becb949 (diff)
Correct a long-standing design flaw: device configuration state
is now separate from runtime device state. I have larger plans for devices, so there is some temporary scaffolding to hold everything together, but this first step does separate things out. There is a new class 'running_device' which represents the state of a live device. A list of these running_devices sits in machine->devicelist and is created when a running_machine is instantiated. To access the configuration state, use device->baseconfig() which returns a reference to the configuration. The list of running_devices in machine->devicelist has a 1:1 correspondance with the list of device configurations in machine->config->devicelist, and most navigation options work equally on either (scanning by class, type, etc.) For the most part, drivers will now deal with running_device objects instead of const device_config objects. In fact, in order to do this patch, I did the following global search & replace: const device_config -> running_device device->static_config -> device->baseconfig().static_config device->inline_config -> device->baseconfig().inline_config and then fixed up the compiler errors that fell out. Some specifics: Removed device_get_info_* functions and replaced them with methods called get_config_*. Added methods for get_runtime_* to access runtime state from the running_device. DEVICE_GET_INFO callbacks are only passed a device_config *. This means they have no access to the token or runtime state at all. For most cases this is fine. Added new DEVICE_GET_RUNTIME_INFO callback that is passed the running_device for accessing data that is live at runtime. In the future this will go away to make room for a cleaner mechanism. Cleaned up the handoff of memory regions from the memory subsystem to the devices.
Diffstat (limited to 'src/emu/sound/fm.h')
-rw-r--r--src/emu/sound/fm.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/emu/sound/fm.h b/src/emu/sound/fm.h
index 226ef3b6cfe..312717a839f 100644
--- a/src/emu/sound/fm.h
+++ b/src/emu/sound/fm.h
@@ -122,7 +122,7 @@ typedef void (*FM_IRQHANDLER)(void *param,int irq);
** 'IRQHandler' IRQ callback handler when changed IRQ level
** return 0 = success
*/
-void * ym2203_init(void *param, const device_config *device, int baseclock, int rate,
+void * ym2203_init(void *param, running_device *device, int baseclock, int rate,
FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler, const ssg_callbacks *ssg);
/*
@@ -165,7 +165,7 @@ void ym2203_postload(void *chip);
#if BUILD_YM2608
/* -------------------- YM2608(OPNA) Interface -------------------- */
-void * ym2608_init(void *param, const device_config *device, int baseclock, int rate,
+void * ym2608_init(void *param, running_device *device, int baseclock, int rate,
void *pcmroma,int pcmsizea,
FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler, const ssg_callbacks *ssg);
void ym2608_shutdown(void *chip);
@@ -180,7 +180,7 @@ void ym2608_postload(void *chip);
#if (BUILD_YM2610||BUILD_YM2610B)
/* -------------------- YM2610(OPNB) Interface -------------------- */
-void * ym2610_init(void *param, const device_config *device, int baseclock, int rate,
+void * ym2610_init(void *param, running_device *device, int baseclock, int rate,
void *pcmroma,int pcmasize,void *pcmromb,int pcmbsize,
FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler, const ssg_callbacks *ssg);
void ym2610_shutdown(void *chip);
@@ -198,7 +198,7 @@ void ym2610_postload(void *chip);
#endif /* (BUILD_YM2610||BUILD_YM2610B) */
#if (BUILD_YM2612||BUILD_YM3438)
-void * ym2612_init(void *param, const device_config *device, int baseclock, int rate,
+void * ym2612_init(void *param, running_device *device, int baseclock, int rate,
FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
void ym2612_shutdown(void *chip);
void ym2612_reset_chip(void *chip);