MIC Services: Difference between revisions
Created page with "Category:Services = Microphone service "mic:u" = {| class="wikitable" border="1" |- ! Command Header ! Description |- | 0x00010042 | ? |- | 0x00020000 | ? |- | 0x00030140 |..." |
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|- | |- | ||
| 0x00010042 | | 0x00010042 | ||
| | | [[MIC:MapSharedMem|MapSharedMem]] | ||
|- | |- | ||
| 0x00020000 | | 0x00020000 | ||
| | | [[MIC:UnmapSharedMem|UnmapSharedMem]] | ||
|- | |- | ||
| 0x00030140 | | 0x00030140 | ||
| | | [[MICU:StartSampling|StartSampling]] | ||
|- | |||
| 0x00040040 | |||
| [[MICU:AdjustSampling|AdjustSampling]] | |||
|- | |- | ||
| 0x00050000 | | 0x00050000 | ||
| | | [[MICU:StopSampling|StopSampling]] | ||
|- | |- | ||
| 0x00060000 | | 0x00060000 | ||
| | | [[MICU:IsSampling|IsSampling]] | ||
|- | |||
| 0x00070000 | |||
| [[MICU:GetEventHandle|GetEventHandle]] | |||
|- | |- | ||
| 0x00080040 | | 0x00080040 | ||
| | | [[MICU:SetGain|SetGain]] | ||
|- | |- | ||
| 0x00090000 | | 0x00090000 | ||
| | | [[MICU:GetGain|GetGain]] | ||
|- | |- | ||
| 0x000A0040 | | 0x000A0040 | ||
| | | [[MICU:SetPower|SetPower]] | ||
|- | |||
| 0x000B0000 | |||
| [[MICU:GetPower|GetPower]] | |||
|- | |||
| 0x000C0042 | |||
| [[MICU:SetIirFilterMic|SetIirFilterMic]] | |||
|- | |||
| 0x000D0040 | |||
| [[MICU:SetClamp|SetClamp]] | |||
|- | |||
| 0x000E0000 | |||
| [[MICU:GetClamp|GetClamp]] | |||
|- | |||
| 0x000F0040 | |||
| [[MICU:SetAllowShellClosed|SetAllowShellClosed]] | |||
|- | |- | ||
| 0x00100040 | | 0x00100040 | ||
| | | When the input value is 0, value 1 is written to an u8 MIC module state field. Otherwise, value 0 is written there. Normally the input value is non-zero. | ||
|} | |||
This is an interface for using the MIC hardware via the "cdc:MIC" service and the MIC [[IO]] registers. | |||
Only one session can be open for this service total(that is, only one process can use this service at a time). | |||
==Encoding== | |||
{| class="wikitable" border="1" | |||
|- | |||
! Enum | |||
! Value | |||
|- | |||
| ENCODING_PCM8 | |||
| 0 | |||
|- | |||
| ENCODING_PCM16 | |||
| 1 | |||
|- | |||
| ENCODING_PCM8_SIGNED | |||
| 2 | |||
|- | |||
| ENCODING_PCM16_SIGNED | |||
| 3 | |||
|} | |||
==SampleRate== | |||
{| class="wikitable" border="1" | |||
|- | |||
! Enum | |||
! Value | |||
|- | |||
| SAMPLE_RATE_32730 | |||
| 0 | |||
|- | |||
| SAMPLE_RATE_16360 | |||
| 1 | |||
|- | |||
| SAMPLE_RATE_10910 | |||
| 2 | |||
|- | |||
| SAMPLE_RATE_8180 | |||
| 3 | |||
|} | |} | ||
The actual accurate sampling rate can be calculated using <code>(16756991 / 512) / (SampleRate + 1)</code> where <code>SampleRate</code> is one of the above values. | |||
=See Also= | |||
[[MIC Shared Memory]] | |||