Support GameCube Microphone

Co-authored-by: shuffle2 <godisgovernment@gmail.com>

Author: Extrems

Makefile

@@ -144,7 +144,7 @@ OGCOBJ		:=	\
 			console_font_8x16.o timesupp.o lock_supp.o newlibc.o usbgecko.o usbmouse.o \
 			sbrk.o malloc_lock.o kprintf.o stm.o ios.o es.o isfs.o usb.o network_common.o \
 			sdgecko_io.o sdgecko_buf.o gcsd.o argv.o network_wii.o wiisd.o conf.o usbstorage.o \
-			texconv.o wiilaunch.o
+			texconv.o wiilaunch.o mic.o
 
 #---------------------------------------------------------------------------------
 MODOBJ		:=	freqtab.o mixer.o modplay.o semitonetab.o gcmodplay.o

gc/ogc/mic.h

@@ -0,0 +1,125 @@
+/*-------------------------------------------------------------
+
+Copyright (C) 2011 - 2025
+shuffle2
+Extrems' Corner.org
+
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any
+damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any
+purpose, including commercial applications, and to alter it and
+redistribute it freely, subject to the following restrictions:
+
+1.	The origin of this software must not be misrepresented; you
+must not claim that you wrote the original software. If you use
+this software in a product, an acknowledgment in the product
+documentation would be appreciated but is not required.
+
+2.	Altered source versions must be plainly marked as such, and
+must not be misrepresented as being the original software.
+
+3.	This notice may not be removed or altered from any source
+distribution.
+
+-------------------------------------------------------------*/
+
+#ifndef __OGC_MIC_H__
+#define __OGC_MIC_H__
+
+#include <gctypes.h>
+
+// Size of buffer for device driver
+//    12KB =  Approx. 139msec worth @ 44100Hz
+//         =  Approx. 279msec worth @ 22050Hz
+//         =  Approx. 557msec worth @ 11025Hz
+#define MIC_RINGBUFFER_SIZE   (12*1024)
+
+// Returned values, tests, etc.
+#define MIC_RESULT_UNLOCKED           1
+#define MIC_RESULT_READY              0
+#define MIC_RESULT_BUSY              -1
+#define MIC_RESULT_WRONGDEVICE       -2
+#define MIC_RESULT_NOCARD            -3
+#define MIC_RESULT_INVALID_STATE     -4
+#define MIC_RESULT_FATAL_ERROR     -128
+
+// Button bits
+#define MIC_BUTTON_0             0x0001
+#define MIC_BUTTON_1             0x0002
+#define MIC_BUTTON_2             0x0004
+#define MIC_BUTTON_3             0x0008
+#define MIC_BUTTON_4             0x0010
+#define MIC_BUTTON_TALK    MIC_BUTTON_4
+
+#define MIC_BMC              0x00000000
+
+#ifdef __cplusplus
+   extern "C" {
+#endif /* __cplusplus */
+
+typedef void (*MICCallback)(s32 chan, s32 result);
+
+void MIC_Init(void);
+s32 MIC_ProbeEx(s32 chan);
+s32 MIC_GetResultCode(s32 chan);
+u32 MIC_GetErrorCount(s32 chan);
+
+s32 MIC_MountAsync(s32 chan, s16 *buffer, s32 size, MICCallback detachCallback, MICCallback attachCallback);
+s32 MIC_Mount(s32 chan, s16 *buffer, s32 size, MICCallback detachCallback);
+s32 MIC_Unmount(s32 chan);
+s32 MIC_GetRingBufferSize(s32 chan, s32 *size);
+
+s32 MIC_SetStatusAsync(s32 chan, u32 status, MICCallback setCallback);
+s32 MIC_SetStatus(s32 chan, u32 status);
+s32 MIC_GetStatus(s32 chan, u32 *status);
+
+s32 MIC_SetParamsAsync(s32 chan, s32 size, s32 rate, s32 gain, MICCallback setCallback);
+s32 MIC_SetParams(s32 chan, s32 size, s32 rate, s32 gain);
+s32 MIC_GetParams(s32 chan, s32 *size, s32 *rate, s32 *gain);
+
+s32 MIC_SetBufferSizeAsync(s32 chan, s32 size, MICCallback setCallback);
+s32 MIC_SetBufferSize(s32 chan, s32 size);
+s32 MIC_GetBufferSize(s32 chan, s32 *size);
+
+s32 MIC_SetRateAsync(s32 chan, s32 rate, MICCallback setCallback);
+s32 MIC_SetRate(s32 chan, s32 rate);
+s32 MIC_GetRate(s32 chan, s32 *rate);
+
+s32 MIC_SetGainAsync(s32 chan, s32 gain, MICCallback setCallback);
+s32 MIC_SetGain(s32 chan, s32 gain);
+s32 MIC_GetGain(s32 chan, s32 *gain);
+
+s32 MIC_GetButton(s32 chan, u32 *button);
+s32 MIC_GetDeviceID(s32 chan, u32 *id);
+
+s32 MIC_SetOutAsync(s32 chan, u32 pattern, MICCallback setCallback);
+s32 MIC_SetOut(s32 chan, u32 pattern);
+s32 MIC_GetOut(s32 chan, u32 *pattern);
+
+s32 MIC_StartAsync(s32 chan, MICCallback startCallback);
+s32 MIC_Start(s32 chan);
+
+s32 MIC_StopAsync(s32 chan, MICCallback stopCallback);
+s32 MIC_Stop(s32 chan);
+
+s32 MIC_ResetAsync(s32 chan, MICCallback resetCallback);
+s32 MIC_Reset(s32 chan);
+
+bool MIC_IsActive(s32 chan);
+bool MIC_IsAttached(s32 chan);
+
+s32 MIC_GetCurrentTop(s32 chan);
+s32 MIC_UpdateIndex(s32 chan, s32 index, s32 samples);
+s32 MIC_GetSamplesLeft(s32 chan, s32 index);
+s32 MIC_GetSamples(s32 chan, s16 *buffer, s32 index, s32 samples);
+
+MICCallback MIC_SetExiCallback(s32 chan, MICCallback exiCallback);
+MICCallback MIC_SetTxCallback(s32 chan, MICCallback txCallback);
+
+#ifdef __cplusplus
+   }
+#endif /* __cplusplus */
+
+#endif