feat: Massive OS expansion with IPC, Sound & TTS, Block layer, FAT32/ext2/sysfs, Signals, Syscalls, Modules, Drivers & 50+ LazyBox applets

include/sound/ac97.h

@@ -0,0 +1,15 @@
+#ifndef _SOUND_AC97_H
+#define _SOUND_AC97_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#define AC97_PCI_VENDOR 0x8086
+#define AC97_PCI_DEVICE 0x2415 // Intel 82801AA AC'97 Audio
+
+bool ac97_init(void);
+void ac97_set_master_volume(uint8_t left, uint8_t right);
+int  ac97_play_pcm(const void* samples, size_t length);
+
+#endif // _SOUND_AC97_H

include/sound/pcm.h

@@ -0,0 +1,20 @@
+#ifndef _SOUND_PCM_H
+#define _SOUND_PCM_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+#define PCM_BUFFER_SIZE 8192
+
+typedef struct {
+    uint32_t sample_rate;
+    uint8_t channels;
+    uint8_t bits;
+    uint8_t buffer[PCM_BUFFER_SIZE];
+    size_t length;
+} pcm_stream_t;
+
+void pcm_init(void);
+int pcm_write(const void* data, size_t len);
+
+#endif // _SOUND_PCM_H

include/sound/sound.h

@@ -0,0 +1,23 @@
+#ifndef _SOUND_SOUND_H
+#define _SOUND_SOUND_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+typedef struct sound_device {
+    char name[32];
+    uint32_t sample_rate;
+    uint8_t channels;
+    uint8_t bits_per_sample;
+    int volume;
+    int (*play_sample)(const void* buffer, size_t length);
+    int (*set_volume)(int volume);
+    bool active;
+} sound_device_t;
+
+void sound_init(void);
+int sound_register_device(sound_device_t* dev);
+sound_device_t* sound_get_default_device(void);
+
+#endif // _SOUND_SOUND_H

include/sound/tts.h

@@ -0,0 +1,18 @@
+#ifndef _SOUND_TTS_H
+#define _SOUND_TTS_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+typedef struct {
+    char phoneme[4];
+    uint32_t freq_f1;
+    uint32_t freq_f2;
+    uint32_t duration_ms;
+} tts_phoneme_t;
+
+void tts_init(void);
+void tts_speak(const char* text);
+void tts_speak_letter(char c);
+
+#endif // _SOUND_TTS_H