CSND Services: Difference between revisions

← Older edit

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-[[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.
+{{Anchor|CSND}}{{Anchor|csnd:SND}}
 = CSND service "csnd:SND" =
 {| class="wikitable" border="1"
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 |-
 | 0x00020000
-| Shutdown
+| [[CSND:Shutdown|Shutdown]]
+|-
+| 0x00030040
+| [[CSND:ExecuteCommands|ExecuteCommands]]
+|-
+| 0x00040080
+| [[CSND:PlaySoundDirectly|PlaySoundDirectly]]
+|-
+| 0x00050000
+| [[CSND:AcquireSoundChannels|AcquireSoundChannels]]
+|-
+| 0x00060000
+| [[CSND:ReleaseSoundChannels|ReleaseSoundChannels]]
+|-
+| 0x00070000
+| [[CSND:AcquireCapUnit|AcquireCapUnit]]
+|-
+| 0x00080040
+| [[CSND:ReleaseCapUnit|ReleaseCapUnit]]
 |-
 | 0x00090082
-| FlushDCache (The buffer must be located in the 0x14000000 region)
+| [[CSND:FlushDataCache|FlushDataCache]]
 |-
 | 0x000A0082
-| StoreDCache (svcStoreProcessDataCache is used for this, the buffer must be located in the 0x14000000 region)
+| [[CSND:StoreDataCache|StoreDataCache]]
+|-
+| 0x000B0082
+| [[CSND:InvalidateDataCache|InvalidateDataCache]]
+|-
+| 0x000C0000
+| [[CSND:Reset|Reset]]
 |}
+A maximum of 4 service sessions can be opened at the same time for this service.
+For cache operations addresses must be in 0x14000000-0x1C000000 range. Starting with [[8.0.0-18]] addresses in the range 0x30000000-0x40000000 are also allowed.
+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]]