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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/mame/audio/vicdual.c
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 '')
-rw-r--r--src/mame/audio/vicdual.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mame/audio/vicdual.c b/src/mame/audio/vicdual.c
index 8cdcfb0712c..e44fe4cedb3 100644
--- a/src/mame/audio/vicdual.c
+++ b/src/mame/audio/vicdual.c
@@ -132,7 +132,7 @@ MACHINE_DRIVER_END
static TIMER_CALLBACK( frogs_croak_callback )
{
- const device_config *samples = devtag_get_device(machine, "samples");
+ running_device *samples = devtag_get_device(machine, "samples");
sample_stop(samples, 2);
}
@@ -145,8 +145,8 @@ MACHINE_START( frogs_audio )
WRITE8_HANDLER( frogs_audio_w )
{
- const device_config *samples = devtag_get_device(space->machine, "samples");
- const device_config *discrete = devtag_get_device(space->machine, "discrete");
+ running_device *samples = devtag_get_device(space->machine, "samples");
+ running_device *discrete = devtag_get_device(space->machine, "discrete");
static int last_croak = 0;
static int last_buzzz = 0;
int new_croak = data & 0x08;
@@ -462,7 +462,7 @@ MACHINE_DRIVER_END
WRITE8_HANDLER( headon_audio_w )
{
- const device_config *discrete = devtag_get_device(space->machine, "discrete");
+ running_device *discrete = devtag_get_device(space->machine, "discrete");
if (discrete == NULL)
return;
discrete_sound_w(discrete, HEADON_HISPEED_PC_EN, data & 0x01);
@@ -477,7 +477,7 @@ WRITE8_HANDLER( headon_audio_w )
WRITE8_HANDLER( invho2_audio_w )
{
- const device_config *discrete = devtag_get_device(space->machine, "discrete");
+ running_device *discrete = devtag_get_device(space->machine, "discrete");
if (discrete == NULL)
return;
discrete_sound_w(discrete, HEADON_HISPEED_PC_EN, data & 0x10);