3dbrew

CSND Services: Difference between revisions

← Older edit
Ichfly (talk | contribs)
164 edits
Undo revision 11524 by Ichfly (talk)
ElementW (talk | contribs)
164 edits
m Add anchors
 
(2 intermediate revisions by 2 users not shown)
Line 1: Line 1:
[[Category:Services]]
The CSND service talks to the DSP using the DSP FIFO to negotiate what CSND channels are allocated to the DSP, and this seems to be channels 0-7 (usually). The rest are dedicated to CSND services.
The CSND service talks to the DSP using the DSP FIFO to negotiate what CSND channels are allocated to the DSP, and this seems to be channels 0-7 (usually). The rest are dedicated to CSND services.


{{Anchor|CSND}}{{Anchor|csnd:SND}}
= CSND service "csnd:SND" =
= CSND service "csnd:SND" =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 13: Line 12:
|-
|-
| 0x00020000
| 0x00020000
| Shutdown
| [[CSND:Shutdown|Shutdown]]
|-
|-
| 0x00030040
| 0x00030040
| ExecuteType0Commands
| [[CSND:ExecuteCommands|ExecuteCommands]]
|-
|-
| 0x00040080
| 0x00040080
| ExecuteType1Commands
| [[CSND:PlaySoundDirectly|PlaySoundDirectly]]
|-
|-
| 0x00050000
| 0x00050000
| AcquireSoundChannels. This function tries to acquire sound channels. Response cmdbuf[2] holds a bitmask to which channels were allocated to this process.
| [[CSND:AcquireSoundChannels|AcquireSoundChannels]]
|-
|-
| 0x00060000
| 0x00060000
| ReleaseSoundChannels.
| [[CSND:ReleaseSoundChannels|ReleaseSoundChannels]]
|-
|-
| 0x00070000
| 0x00070000
| AcquireCaptureDevice. This function tries to acquire one capture device (max: 2). Returns index of which capture device was acquired.
| [[CSND:AcquireCapUnit|AcquireCapUnit]]
|-
|-
| 0x00080040
| 0x00080040
| ReleaseCaptureDevice. This function tries to release the capture device given in cmdbuf[1].
| [[CSND:ReleaseCapUnit|ReleaseCapUnit]]
|-
|-
| 0x00090082
| 0x00090082
| FlushDCache
| [[CSND:FlushDataCache|FlushDataCache]]
|-
|-
| 0x000A0082
| 0x000A0082
| StoreDCache
| [[CSND:StoreDataCache|StoreDataCache]]
|-
|-
| 0x000B0082
| 0x000B0082
| InvalidateDCache
| [[CSND:InvalidateDataCache|InvalidateDataCache]]
|-
|-
| 0x000C0000
| 0x000C0000
|  
| [[CSND:Reset|Reset]]
|}
|}


Line 51: Line 50:


This service is normally used for playing [[BCWAV|CWAVs]]. The audio data must be located in the 0x14000000 virtual memory region, since CSND requires the physical address for playing the audio.
This service is normally used for playing [[BCWAV|CWAVs]]. The audio data must be located in the 0x14000000 virtual memory region, since CSND requires the physical address for playing the audio.
[[Category:Services]]
Retrieved from "https://www.3dbrew.org/wiki/CSND_Services"