Difference between revisions of "MIC Services"
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Steveice10 (talk | contribs) m (Name consistency, some constant values.) |
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| Line 16: | Line 16: | ||
|- | |- | ||
| 0x00040040 | | 0x00040040 | ||
| − | | AdjustSampling | + | | [[MICU:AdjustSampling|AdjustSampling]] |
|- | |- | ||
| 0x00050000 | | 0x00050000 | ||
| − | | StopSampling | + | | [[MICU:StopSampling|StopSampling]] |
|- | |- | ||
| 0x00060000 | | 0x00060000 | ||
| − | | IsSampling | + | | [[MICU:IsSampling|IsSampling]] |
|- | |- | ||
| 0x00070000 | | 0x00070000 | ||
| − | | GetEventHandle | + | | [[MICU:GetEventHandle|GetEventHandle]] |
|- | |- | ||
| 0x00080040 | | 0x00080040 | ||
| − | | SetGain | + | | [[MICU:SetGain|SetGain]] |
|- | |- | ||
| 0x00090000 | | 0x00090000 | ||
| − | | GetGain | + | | [[MICU:GetGain|GetGain]] |
|- | |- | ||
| 0x000A0040 | | 0x000A0040 | ||
| − | | | + | | [[MICU:SetPower|SetPower]] |
|- | |- | ||
| 0x000B0000 | | 0x000B0000 | ||
| − | | | + | | [[MICU:GetPower|GetPower]] |
|- | |- | ||
| 0x000C0042 | | 0x000C0042 | ||
| − | | | + | | [[MICU:SetIirFilterMic|SetIirFilterMic]] |
|- | |- | ||
| 0x000D0040 | | 0x000D0040 | ||
| − | | SetClamp | + | | [[MICU:SetClamp|SetClamp]] |
|- | |- | ||
| 0x000E0000 | | 0x000E0000 | ||
| − | | GetClamp | + | | [[MICU:GetClamp|GetClamp]] |
|- | |- | ||
| 0x000F0040 | | 0x000F0040 | ||
| − | | | + | | [[MICU:SetAllowShellClosed|SetAllowShellClosed]] |
|- | |- | ||
| 0x00100040 | | 0x00100040 | ||
| Line 59: | Line 59: | ||
Only one session can be open for this service total(that is, only one process can use this service at a time). | 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" | {| class="wikitable" border="1" | ||
|- | |- | ||
| Line 78: | Line 78: | ||
|} | |} | ||
| − | + | ==SampleRate== | |
{| class="wikitable" border="1" | {| class="wikitable" border="1" | ||
|- | |- | ||
| Line 96: | Line 96: | ||
| 3 | | 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= | =See Also= | ||
[[MIC Shared Memory]] | [[MIC Shared Memory]] | ||
Latest revision as of 16:45, 17 March 2018
Microphone service "mic:u"[edit]
| Command Header | Description |
|---|---|
| 0x00010042 | MapSharedMem |
| 0x00020000 | UnmapSharedMem |
| 0x00030140 | StartSampling |
| 0x00040040 | AdjustSampling |
| 0x00050000 | StopSampling |
| 0x00060000 | IsSampling |
| 0x00070000 | GetEventHandle |
| 0x00080040 | SetGain |
| 0x00090000 | GetGain |
| 0x000A0040 | SetPower |
| 0x000B0000 | GetPower |
| 0x000C0042 | SetIirFilterMic |
| 0x000D0040 | SetClamp |
| 0x000E0000 | GetClamp |
| 0x000F0040 | SetAllowShellClosed |
| 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[edit]
| Enum | Value |
|---|---|
| ENCODING_PCM8 | 0 |
| ENCODING_PCM16 | 1 |
| ENCODING_PCM8_SIGNED | 2 |
| ENCODING_PCM16_SIGNED | 3 |
SampleRate[edit]
| 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 (16756991 / 512) / (SampleRate + 1) where SampleRate is one of the above values.