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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/c140.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 'src/emu/sound/c140.c')
-rw-r--r--src/emu/sound/c140.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/emu/sound/c140.c b/src/emu/sound/c140.c
index 265ab534e7c..cb632cb096d 100644
--- a/src/emu/sound/c140.c
+++ b/src/emu/sound/c140.c
@@ -106,7 +106,7 @@ struct _c140_state
VOICE voi[MAX_VOICE];
};
-INLINE c140_state *get_safe_token(const device_config *device)
+INLINE c140_state *get_safe_token(running_device *device)
{
assert(device != NULL);
assert(device->token != NULL);
@@ -256,7 +256,7 @@ WRITE8_DEVICE_HANDLER( c140_w )
}
}
-void c140_set_base(const device_config *device, void *base)
+void c140_set_base(running_device *device, void *base)
{
c140_state *info = get_safe_token(device);
info->pRom = base;
@@ -466,7 +466,7 @@ static STREAM_UPDATE( update_stereo )
static DEVICE_START( c140 )
{
- const c140_interface *intf = (const c140_interface *)device->static_config;
+ const c140_interface *intf = (const c140_interface *)device->baseconfig().static_config;
c140_state *info = get_safe_token(device);
info->sample_rate=info->baserate=device->clock;