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feat: Intel HDA audio driver, audio streaming syscalls, userspace Music app, fixes and improvements, rudimentary Bluetooth support

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This commit is contained in:
Daniel Hammer
2026-03-10 17:14:33 +01:00
parent 807c2602fe
commit 576ad34f95
58 changed files with 11275 additions and 137 deletions
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programs/include/Api/Syscall.hpp
+52 -2
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@@ -100,6 +100,28 @@ namespace Montauk {
static constexpr uint64_t SYS_FSMOUNT = 75;
static constexpr uint64_t SYS_FSFORMAT = 76;
// Audio syscalls
static constexpr uint64_t SYS_AUDIOOPEN = 80;
static constexpr uint64_t SYS_AUDIOCLOSE = 81;
static constexpr uint64_t SYS_AUDIOWRITE = 82;
static constexpr uint64_t SYS_AUDIOCTL = 83;
// Bluetooth syscalls
static constexpr uint64_t SYS_BTSCAN = 84;
static constexpr uint64_t SYS_BTCONNECT = 85;
static constexpr uint64_t SYS_BTDISCONNECT = 86;
static constexpr uint64_t SYS_BTLIST = 87;
static constexpr uint64_t SYS_BTINFO = 88;
// Audio control commands (for SYS_AUDIOCTL)
static constexpr int AUDIO_CTL_SET_VOLUME = 0;
static constexpr int AUDIO_CTL_GET_VOLUME = 1;
static constexpr int AUDIO_CTL_GET_POS = 2;
static constexpr int AUDIO_CTL_PAUSE = 3;
static constexpr int AUDIO_CTL_GET_OUTPUT = 4; // 0=HDA, 1=Bluetooth
static constexpr int AUDIO_CTL_SET_OUTPUT = 5; // Switch audio output
static constexpr int AUDIO_CTL_BT_STATUS = 6; // Get Bluetooth connection status
static constexpr int SOCK_TCP = 1;
static constexpr int SOCK_UDP = 2;
@@ -188,8 +210,8 @@ namespace Montauk {
};
struct DiskInfo {
uint8_t port; // AHCI port index
uint8_t type; // 0=none, 1=SATA, 2=SATAPI
uint8_t port; // block device index
uint8_t type; // 0=none, 1=SATA, 2=SATAPI, 3=NVMe
uint8_t sataGen; // SATA gen (1/2/3)
uint8_t _pad0;
uint64_t sectorCount; // Total user-addressable sectors
@@ -249,6 +271,34 @@ namespace Montauk {
char label[32]; // volume label
};
// Bluetooth scan result (returned by SYS_BTSCAN)
struct BtScanResult {
uint8_t bdAddr[6];
uint8_t _pad[2];
uint32_t classOfDevice;
int8_t rssi;
uint8_t _pad2[3];
char name[64];
};
// Bluetooth connected device info (returned by SYS_BTLIST)
struct BtDevInfo {
uint8_t bdAddr[6];
uint8_t connected;
uint8_t encrypted;
uint16_t handle;
uint8_t linkType;
uint8_t _pad;
};
// Bluetooth adapter info (returned by SYS_BTINFO)
struct BtAdapterInfo {
uint8_t bdAddr[6];
uint8_t initialized;
uint8_t scanning;
char name[64];
};
struct ProcInfo {
int32_t pid;
int32_t parentPid;
programs/include/gui/desktop.hpp
+7
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@@ -111,6 +111,13 @@ struct DesktopState {
int screen_w, screen_h;
// IDs of external windows we've sent a close event to but that haven't
// been destroyed yet by their owning process. Prevents the poll loop
// from re-creating them at the default position (visible flicker).
static constexpr int MAX_CLOSING = 8;
int closing_ext_ids[MAX_CLOSING];
int closing_ext_count;
DesktopSettings settings;
};
programs/include/libc/string.h
+1
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@@ -13,6 +13,7 @@ void *memcpy(void *dest, const void *src, size_t n);
void *memset(void *s, int c, size_t n);
void *memmove(void *dest, const void *src, size_t n);
int memcmp(const void *s1, const void *s2, size_t n);
void *memchr(const void *s, int c, size_t n);
size_t strlen(const char *s);
int strcmp(const char *s1, const char *s2);
programs/include/montauk/syscall.h
+55
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@@ -336,6 +336,61 @@ namespace montauk {
return (int)syscall1(Montauk::SYS_FSFORMAT, (uint64_t)params);
}
// Audio
inline int audio_open(uint32_t sampleRate, uint8_t channels, uint8_t bitsPerSample) {
return (int)syscall3(Montauk::SYS_AUDIOOPEN, (uint64_t)sampleRate,
(uint64_t)channels, (uint64_t)bitsPerSample);
}
inline void audio_close(int handle) {
syscall1(Montauk::SYS_AUDIOCLOSE, (uint64_t)handle);
}
inline int audio_write(int handle, const void* data, uint32_t size) {
return (int)syscall3(Montauk::SYS_AUDIOWRITE, (uint64_t)handle,
(uint64_t)data, (uint64_t)size);
}
inline int audio_ctl(int handle, int cmd, int value) {
return (int)syscall3(Montauk::SYS_AUDIOCTL, (uint64_t)handle,
(uint64_t)cmd, (uint64_t)value);
}
inline int audio_set_volume(int handle, int percent) {
return audio_ctl(handle, Montauk::AUDIO_CTL_SET_VOLUME, percent);
}
inline int audio_get_volume(int handle) {
return audio_ctl(handle, Montauk::AUDIO_CTL_GET_VOLUME, 0);
}
inline int audio_get_pos(int handle) {
return audio_ctl(handle, Montauk::AUDIO_CTL_GET_POS, 0);
}
inline int audio_pause(int handle) {
return audio_ctl(handle, Montauk::AUDIO_CTL_PAUSE, 1);
}
inline int audio_resume(int handle) {
return audio_ctl(handle, Montauk::AUDIO_CTL_PAUSE, 0);
}
inline int audio_get_output(int handle) {
return audio_ctl(handle, Montauk::AUDIO_CTL_GET_OUTPUT, 0);
}
inline int audio_bt_status(int handle) {
return audio_ctl(handle, Montauk::AUDIO_CTL_BT_STATUS, 0);
}
// Bluetooth
inline int bt_scan(Montauk::BtScanResult* buf, int maxCount, uint32_t timeoutMs) {
return (int)syscall3(Montauk::SYS_BTSCAN, (uint64_t)buf, (uint64_t)maxCount, (uint64_t)timeoutMs);
}
inline int bt_connect(const uint8_t* bdAddr) {
return (int)syscall1(Montauk::SYS_BTCONNECT, (uint64_t)bdAddr);
}
inline int bt_disconnect(const uint8_t* bdAddr) {
return (int)syscall1(Montauk::SYS_BTDISCONNECT, (uint64_t)bdAddr);
}
inline int bt_list(Montauk::BtDevInfo* buf, int maxCount) {
return (int)syscall2(Montauk::SYS_BTLIST, (uint64_t)buf, (uint64_t)maxCount);
}
inline int bt_info(Montauk::BtAdapterInfo* buf) {
return (int)syscall1(Montauk::SYS_BTINFO, (uint64_t)buf);
}
// Kernel introspection
inline void memstats(Montauk::MemStats* out) { syscall1(Montauk::SYS_MEMSTATS, (uint64_t)out); }