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tactility/Tactility/Source/mcp/McpSystem.cpp
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Adolfo Reyna ad4a15dce8 feat(mcp): restore MCP service with display charging toggle 
- Restore MCP system (McpSystem 1900+ LOC, McpHandler, McpScreensaver, McpSettings, McpOverride apps)
- Use audio-stream instead of direct I2S for MP3 playback (fixes fast playback, uses native resampler)
- Register McpSettings + McpOverride in Tactility.cpp so Settings shows MCP Screen
- DisplaySettings: add ScreensaverType::McpScreen and disableScreensaverWhenCharging flag
- Display app: add 'Disable on charging' toggle, handles McpScreen screensaver type
- DisplayIdle: skip screensaver while charging, support McpScreen screensaver, isDeviceCharging check via PowerDevice
- WebServer: coexistence with MCP (McpHandler)
- Avoid formatting churn from previous commits

Squashed from range eaa248b0..8970143f (6 commits) into single clean commit
2026-07-23 22:56:17 -04:00

1987 lines
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#ifdef ESP_PLATFORM
#include <Tactility/mcp/McpSystem.h>
#include <Tactility/settings/McpSettings.h>
#include <Tactility/lvgl/LvglSync.h>
#include <Tactility/file/File.h>
#include <Tactility/app/App.h>
#include <Tactility/app/AppRegistration.h>
#include <Tactility/app/AppManifest.h>
#include <tactility/log.h>
constexpr auto* TAG = "McpSystem";
#include <Tactility/service/displayidle/DisplayIdleService.h>
#include <sys/stat.h>
#include <dirent.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <esp_log.h>
#include <esp_heap_caps.h>
#include <tactility/drivers/i2s_controller.h>
#include <tactility/drivers/audio_stream.h>
#include <mbedtls/base64.h>
#include <Tactility/hal/power/PowerDevice.h>
#include <tactility/hal/Device.h>
#include <Tactility/bluetooth/Bluetooth.h>
#include <tactility/drivers/bluetooth.h>
#include <Tactility/network/Http.h>
#include <freertos/semphr.h>
#include <cJSON.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <fcntl.h>
#include <cmath>
#include <cstring>
#include <cstdio>
#include <cstdlib>
#define MINIMP3_IMPLEMENTATION
#define MINIMP3_NO_SIMD
#include <Tactility/mcp/minimp3.h>
namespace tt::mcp {
static void* psram_malloc(size_t size) {
void* ptr = heap_caps_malloc(size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
if (ptr != nullptr) {
return ptr;
}
return malloc(size);
}
#define AUDIO_SAMPLE_RATE 16000
#define AUDIO_BITS_PER_SAMPLE 16
#define AUDIO_CHUNK_SAMPLES 512
#define AUDIO_CHUNK_BYTES (AUDIO_CHUNK_SAMPLES * 2)
#define MP3_INPUT_BUFFER_SIZE 16384
struct WavInfo {
uint16_t channels;
uint32_t sample_rate;
uint16_t bits_per_sample;
size_t data_offset;
size_t data_size;
};
// Global singleton state
McpSystemState& getState() {
static McpSystemState state;
return state;
}
static bool ascii_space(uint8_t value) {
return value == ' ' || value == '\t' || value == '\r' ||
value == '\n' || value == '\f' || value == '\v';
}
static bool ascii_digit(uint8_t value) {
return value >= '0' && value <= '9';
}
static uint16_t read_le16(const uint8_t* value) {
return (uint16_t)value[0] | ((uint16_t)value[1] << 8);
}
static uint32_t read_le32(const uint8_t* value) {
return (uint32_t)value[0] |
((uint32_t)value[1] << 8) |
((uint32_t)value[2] << 16) |
((uint32_t)value[3] << 24);
}
static bool display_ready(McpSystemState& state) {
return state.drawArea != nullptr &&
state.framebuffer != nullptr &&
state.drawWidth > 0 &&
state.drawHeight > 0;
}
static bool ensureOverrideScreen() {
auto& state = getState();
if (state.drawArea == nullptr) {
// Activate the MCP screensaver via DisplayIdle (force McpScreensaver type)
auto idleService = service::displayidle::findService();
if (idleService) {
LOG_I(TAG, "MCP draw triggered: activating MCP screensaver");
idleService->startMcpScreensaver();
// Wait up to 500ms for the canvas to be registered by McpScreensaver::start()
for (int i = 0; i < 10; ++i) {
vTaskDelay(pdMS_TO_TICKS(50));
if (state.drawArea != nullptr) {
break;
}
}
} else {
LOG_W(TAG, "DisplayIdle service not found; cannot activate MCP screensaver");
}
}
return state.drawArea != nullptr;
}
static uint16_t rgb888_to_rgb565(uint8_t red, uint8_t green, uint8_t blue) {
return (uint16_t)(((red & 0xF8) << 8) |
((green & 0xFC) << 3) |
(blue >> 3));
}
static void put_pixel(McpSystemState& state, int x, int y, uint16_t color) {
if (x >= 0 && y >= 0 && x < state.drawWidth && y < state.drawHeight) {
state.framebuffer[(size_t)y * state.drawWidth + x] = color;
}
}
bool clearScreen(int color) {
if (!ensureOverrideScreen()) return false;
auto& state = getState();
bool success = false;
if (lvgl::lock(pdMS_TO_TICKS(1500))) {
if (display_ready(state)) {
lv_obj_clean(state.drawArea);
uint16_t fill = color == 1 ? 0xFFFF : 0x0000;
size_t pixel_count = (size_t)state.drawWidth * state.drawHeight;
for (size_t i = 0; i < pixel_count; ++i) {
state.framebuffer[i] = fill;
}
lv_obj_invalidate(state.drawArea);
state.drawColor = color;
state.overrideActive = true;
success = true;
}
lvgl::unlock();
}
return success;
}
bool drawText(const std::string& text, int x, int y, int size) {
if (!ensureOverrideScreen()) return false;
auto& state = getState();
bool success = false;
if (lvgl::lock(pdMS_TO_TICKS(1500))) {
if (display_ready(state)) {
int max_x = state.drawWidth > 0 ? state.drawWidth - 1 : 0;
int max_y = state.drawHeight > 0 ? state.drawHeight - 1 : 0;
if (x < 0) x = 0;
if (y < 0) y = 0;
if (x > max_x) x = max_x;
if (y > max_y) y = max_y;
lv_obj_t* label = lv_label_create(state.drawArea);
lv_label_set_text(label, text.c_str());
lv_label_set_long_mode(label, LV_LABEL_LONG_WRAP);
lv_obj_set_width(label, LV_MAX(1, state.drawWidth - x));
lv_obj_set_pos(label, x, y);
lv_obj_set_style_text_color(
label,
state.drawColor == 0 ? lv_color_white() : lv_color_black(),
LV_PART_MAIN
);
#if LV_FONT_MONTSERRAT_24
if (size >= 2) {
lv_obj_set_style_text_font(label, &lv_font_montserrat_24, LV_PART_MAIN);
}
#endif
lv_obj_invalidate(state.drawArea); // Trigger repaint
state.overrideActive = true;
success = true;
}
lvgl::unlock();
}
return success;
}
bool drawRgb565(const uint8_t* data, size_t size, int x, int y, int w, int h) {
if (!ensureOverrideScreen()) return false;
auto& state = getState();
if (data == NULL || w <= 0 || h <= 0 || size < (size_t)w * h * 2) {
return false;
}
bool success = false;
if (lvgl::lock(pdMS_TO_TICKS(2000))) {
if (display_ready(state)) {
for (int source_y = 0; source_y < h; ++source_y) {
int destination_y = y + source_y;
if (destination_y < 0 || destination_y >= state.drawHeight) {
continue;
}
for (int source_x = 0; source_x < w; ++source_x) {
int destination_x = x + source_x;
if (destination_x < 0 || destination_x >= state.drawWidth) {
continue;
}
size_t offset = ((size_t)source_y * w + source_x) * 2;
uint16_t color = ((uint16_t)data[offset] << 8) | data[offset + 1];
put_pixel(state, destination_x, destination_y, ~color);
}
}
lv_obj_invalidate(state.drawArea);
state.overrideActive = true;
success = true;
}
lvgl::unlock();
}
return success;
}
bool drawBmp(const uint8_t* data, size_t size, int x, int y) {
if (!ensureOverrideScreen()) return false;
auto& state = getState();
if (data == NULL || size < 54 || data[0] != 'B' || data[1] != 'M') {
return false;
}
uint32_t pixel_offset = read_le32(data + 10);
uint32_t dib_size = read_le32(data + 14);
int32_t w = (int32_t)read_le32(data + 18);
int32_t signed_height = (int32_t)read_le32(data + 22);
uint16_t planes = read_le16(data + 26);
uint16_t bits_per_pixel = read_le16(data + 28);
uint32_t compression = read_le32(data + 30);
if (dib_size < 40 || w <= 0 || signed_height == 0 || planes != 1 ||
(bits_per_pixel != 24 && bits_per_pixel != 32) || compression != 0) {
return false;
}
int h = signed_height < 0 ? -signed_height : signed_height;
bool top_down = signed_height < 0;
size_t row_stride = (((size_t)w * bits_per_pixel + 31) / 32) * 4;
if (pixel_offset > size ||
row_stride > size ||
(size_t)h > (size - pixel_offset) / row_stride) {
return false;
}
bool success = false;
if (lvgl::lock(pdMS_TO_TICKS(2500))) {
if (display_ready(state)) {
size_t bytes_per_pixel = bits_per_pixel / 8;
for (int source_y = 0; source_y < h; ++source_y) {
int file_y = top_down ? source_y : (h - 1 - source_y);
const uint8_t* row = data + pixel_offset + (size_t)file_y * row_stride;
for (int source_x = 0; source_x < w; ++source_x) {
const uint8_t* pixel = row + (size_t)source_x * bytes_per_pixel;
put_pixel(
state,
x + source_x,
y + source_y,
~rgb888_to_rgb565(pixel[2], pixel[1], pixel[0])
);
}
}
lv_obj_invalidate(state.drawArea);
state.overrideActive = true;
success = true;
}
lvgl::unlock();
}
return success;
}
static bool pbm_next_number(const uint8_t* data, size_t data_size, size_t* offset, int* result) {
while (*offset < data_size) {
if (data[*offset] == '#') {
while (*offset < data_size && data[*offset] != '\n') {
(*offset)++;
}
} else if (ascii_space(data[*offset])) {
(*offset)++;
} else {
break;
}
}
if (*offset >= data_size || !ascii_digit(data[*offset])) {
return false;
}
int value = 0;
while (*offset < data_size && ascii_digit(data[*offset])) {
value = value * 10 + (data[*offset] - '0');
(*offset)++;
}
*result = value;
return true;
}
bool drawPbm(const uint8_t* data, size_t size, int x, int y) {
if (!ensureOverrideScreen()) return false;
auto& state = getState();
if (data == NULL || size < 8 || data[0] != 'P' || data[1] != '4') {
return false;
}
size_t offset = 2;
int w = 0;
int h = 0;
if (!pbm_next_number(data, size, &offset, &w) ||
!pbm_next_number(data, size, &offset, &h) ||
w <= 0 || h <= 0) {
return false;
}
if (offset >= size || !ascii_space(data[offset])) {
return false;
}
if (data[offset] == '\r' && offset + 1 < size && data[offset + 1] == '\n') {
offset += 2;
} else {
offset++;
}
size_t row_bytes = ((size_t)w + 7) / 8;
if (offset > size || (size_t)h > (size - offset) / row_bytes) {
return false;
}
bool success = false;
if (lvgl::lock(pdMS_TO_TICKS(2000))) {
if (display_ready(state)) {
for (int source_y = 0; source_y < h; ++source_y) {
const uint8_t* row = data + offset + (size_t)source_y * row_bytes;
for (int source_x = 0; source_x < w; ++source_x) {
bool active = (row[source_x >> 3] & (0x80 >> (source_x & 7))) != 0;
put_pixel(state, x + source_x, y + source_y, active ? 0x0000 : 0xFFFF);
}
}
lv_obj_invalidate(state.drawArea);
state.overrideActive = true;
success = true;
}
lvgl::unlock();
}
return success;
}
std::string getScreenshotPbmBase64() {
auto& state = getState();
if (!display_ready(state)) {
return "";
}
size_t row_bytes = ((size_t)state.drawWidth + 7) / 8;
size_t header_size = 32;
size_t payload_size = row_bytes * state.drawHeight;
size_t pbm_size = header_size + payload_size;
uint8_t* pbm = (uint8_t*)psram_malloc(pbm_size);
if (pbm == NULL) {
return "";
}
int header_length = snprintf(
(char*)pbm,
header_size,
"P4\n%u %u\n",
state.drawWidth,
state.drawHeight
);
if (header_length <= 0 || (size_t)header_length >= header_size) {
free(pbm);
return "";
}
uint8_t* payload = pbm + header_length;
memset(payload, 0, payload_size);
bool success = false;
if (lvgl::lock(pdMS_TO_TICKS(1500))) {
if (display_ready(state)) {
for (int y = 0; y < state.drawHeight; ++y) {
uint8_t* row = payload + (size_t)y * row_bytes;
for (int x = 0; x < state.drawWidth; ++x) {
uint16_t color = ~state.framebuffer[(size_t)y * state.drawWidth + x];
// Convert RGB565 to simple grayscale threshold (black if sum of components is low)
int red = (color >> 11) & 0x1F;
int green = (color >> 5) & 0x3F;
int blue = color & 0x1F;
int intensity = red * 8 + green * 4 + blue * 8;
bool black = intensity < 240; // threshold
if (black) {
row[x >> 3] |= (uint8_t)(0x80 >> (x & 7));
}
}
}
success = true;
}
lvgl::unlock();
}
if (!success) {
free(pbm);
return "";
}
size_t total_size = (size_t)header_length + payload_size;
size_t base64_len = 0;
mbedtls_base64_encode(nullptr, 0, &base64_len, pbm, total_size);
std::string encoded(base64_len + 1, '\0');
size_t actual_len = 0;
mbedtls_base64_encode(reinterpret_cast<unsigned char*>(encoded.data()),
encoded.length(), &actual_len, pbm, total_size);
encoded.resize(actual_len);
free(pbm);
return encoded;
}
// Audio Porting Helper
static void set_error(std::string& error, const std::string& message) {
error = message;
}
static bool get_audio_device(McpSystemState& state, std::string& error) {
// Keep i2sDevice lookup for backward compat but also resolve audio-stream device
if (state.i2sDevice == nullptr) {
state.i2sDevice = device_find_by_name("i2s0");
}
if (state.audioStreamDevice == nullptr) {
device_for_each_of_type(&AUDIO_STREAM_TYPE, &state, [](Device* dev, void* ctx)->bool {
auto* out = static_cast<McpSystemState*>(ctx);
out->audioStreamDevice = dev;
return false;
});
if (state.audioStreamDevice == nullptr) {
state.audioStreamDevice = device_find_by_name("audio-stream");
}
}
if (state.audioStreamDevice == nullptr) {
set_error(error, "Audio stream device not found");
// Fall back to i2s check to keep old path for recording without audio-stream? will fail later
if (state.i2sDevice == nullptr) {
set_error(error, "I2S device 'i2s0' was not found");
return false;
}
}
return true;
}
static bool begin_audio(McpSystemState& state, std::string& error) {
if (!get_audio_device(state, error)) {
return false;
}
if (state.audioBusy) {
set_error(error, "Another audio operation is already running");
return false;
}
state.audioBusy = true;
state.audioRunning = true;
state.audioHandle = nullptr;
return true;
}
static void end_audio(McpSystemState& state) {
state.audioRunning = false;
if (state.audioHandle != nullptr) {
audio_stream_close(state.audioHandle);
state.audioHandle = nullptr;
}
state.audioBusy = false;
// legacy reset
if (state.i2sDevice != nullptr) {
device_lock(state.i2sDevice);
i2s_controller_reset(state.i2sDevice);
device_unlock(state.i2sDevice);
}
}
static bool configure_i2s(McpSystemState& state, int sample_rate, int channels, std::string& error) {
if (state.audioHandle != nullptr) {
audio_stream_close(state.audioHandle);
state.audioHandle = nullptr;
}
if (state.audioStreamDevice == nullptr) {
// Fallback to direct I2S if audio-stream not found (very old boards)
I2sConfig config = {
.communication_format = I2S_FORMAT_STAND_I2S,
.sample_rate = static_cast<uint32_t>(sample_rate),
.bits_per_sample = AUDIO_BITS_PER_SAMPLE,
.channel_left = 0,
.channel_right = static_cast<int8_t>(channels == 2 ? 1 : I2S_CHANNEL_NONE)
};
device_lock(state.i2sDevice);
error_t result = i2s_controller_set_config(state.i2sDevice, &config);
device_unlock(state.i2sDevice);
if (result != ERROR_NONE) {
LOG_E(TAG, "I2S configuration failed: %d", result);
set_error(error, "Failed to configure I2S");
return false;
}
return true;
}
AudioStreamConfig cfg = {
.sample_rate = static_cast<uint32_t>(sample_rate),
.bits_per_sample = AUDIO_BITS_PER_SAMPLE,
.channels = static_cast<uint8_t>(channels),
};
error_t res = audio_stream_open_output(state.audioStreamDevice, &cfg, &state.audioHandle);
if (res != ERROR_NONE) {
LOG_E(TAG, "audio_stream_open_output failed: %d rate=%d ch=%d", res, sample_rate, channels);
set_error(error, "Failed to open audio stream");
return false;
}
return true;
}
static void apply_volume(uint8_t* data, size_t data_size, int volume) {
int16_t* samples = (int16_t*)data;
size_t sample_count = data_size / sizeof(int16_t);
for (size_t index = 0; index < sample_count; ++index) {
int32_t scaled = (int32_t)samples[index] * volume / 100;
samples[index] = (int16_t)scaled;
}
}
static bool write_audio(McpSystemState& state, uint8_t* data, size_t data_size, int volume, std::string& error) {
apply_volume(data, data_size, volume);
if (state.audioStreamDevice != nullptr && state.audioHandle != nullptr) {
size_t offset = 0;
while (offset < data_size && state.audioRunning) {
size_t bytes_written = 0;
error_t result = audio_stream_write(
state.audioHandle,
data + offset,
data_size - offset,
&bytes_written,
pdMS_TO_TICKS(500)
);
if (result != ERROR_NONE || bytes_written == 0) {
LOG_E(TAG, "audio_stream_write failed: result=%d written=%u", result, (unsigned)bytes_written);
set_error(error, "Audio playback failed");
return false;
}
offset += bytes_written;
}
if (!state.audioRunning) {
set_error(error, "Audio playback was cancelled");
return false;
}
return true;
}
// Fallback direct I2S
size_t offset = 0;
while (offset < data_size && state.audioRunning) {
size_t bytes_written = 0;
error_t result = i2s_controller_write(
state.i2sDevice,
data + offset,
data_size - offset,
&bytes_written,
pdMS_TO_TICKS(250)
);
if (result != ERROR_NONE || bytes_written == 0) {
LOG_E(TAG, "I2S write failed: result=%d written=%u", result, (unsigned)bytes_written);
set_error(error, "I2S playback failed");
return false;
}
offset += bytes_written;
}
if (!state.audioRunning) {
set_error(error, "Audio playback was cancelled");
return false;
}
return true;
}
static bool resolve_file(const std::string& filename, char* path, size_t path_size, std::string& error) {
if (filename.empty() || filename.length() > 96 ||
filename.find("..") != std::string::npos ||
filename.find("/") != std::string::npos ||
filename.find("\\") != std::string::npos) {
error = "filename must be a simple relative name";
return false;
}
std::string base_dir = "/data/service/mcp";
file::findOrCreateDirectory(base_dir, 0755);
snprintf(path, path_size, "%s/%s", base_dir.c_str(), filename.c_str());
return true;
}
static bool parse_wav(const uint8_t* data, size_t size, WavInfo* info) {
if (data == NULL || info == NULL || size < 12 ||
memcmp(data, "RIFF", 4) != 0 || memcmp(data + 8, "WAVE", 4) != 0) {
return false;
}
bool have_format = false;
bool have_data = false;
uint16_t audio_format = 0;
size_t offset = 12;
memset(info, 0, sizeof(*info));
while (offset + 8 <= size) {
const uint8_t* chunk = data + offset;
uint32_t chunk_size = read_le32(chunk + 4);
offset += 8;
if (chunk_size > size - offset) {
return false;
}
if (memcmp(chunk, "fmt ", 4) == 0) {
if (chunk_size < 16) {
return false;
}
audio_format = read_le16(data + offset);
info->channels = read_le16(data + offset + 2);
info->sample_rate = read_le32(data + offset + 4);
info->bits_per_sample = read_le16(data + offset + 14);
have_format = true;
} else if (memcmp(chunk, "data", 4) == 0) {
info->data_offset = offset;
info->data_size = chunk_size;
have_data = true;
break;
}
offset += chunk_size + (chunk_size & 1U);
}
return have_format && have_data &&
audio_format == 1 &&
(info->channels == 1 || info->channels == 2) &&
info->sample_rate == AUDIO_SAMPLE_RATE &&
info->bits_per_sample == AUDIO_BITS_PER_SAMPLE;
}
static bool parse_wav_file(FILE* file, size_t file_size, WavInfo* info) {
uint8_t riff[12];
if (file == NULL || info == NULL || file_size < sizeof(riff) ||
fseek(file, 0, SEEK_SET) != 0 ||
fread(riff, 1, sizeof(riff), file) != sizeof(riff) ||
memcmp(riff, "RIFF", 4) != 0 ||
memcmp(riff + 8, "WAVE", 4) != 0) {
return false;
}
bool have_format = false;
bool have_data = false;
uint16_t audio_format = 0;
size_t offset = sizeof(riff);
memset(info, 0, sizeof(*info));
while (offset + 8 <= file_size) {
uint8_t chunk[8];
if (fseek(file, (long)offset, SEEK_SET) != 0 ||
fread(chunk, 1, sizeof(chunk), file) != sizeof(chunk)) {
return false;
}
uint32_t chunk_size = read_le32(chunk + 4);
offset += sizeof(chunk);
if (chunk_size > file_size - offset) {
return false;
}
if (memcmp(chunk, "fmt ", 4) == 0) {
uint8_t format[16];
if (chunk_size < sizeof(format) ||
fread(format, 1, sizeof(format), file) != sizeof(format)) {
return false;
}
audio_format = read_le16(format);
info->channels = read_le16(format + 2);
info->sample_rate = read_le32(format + 4);
info->bits_per_sample = read_le16(format + 14);
have_format = true;
} else if (memcmp(chunk, "data", 4) == 0) {
info->data_offset = offset;
info->data_size = chunk_size;
have_data = true;
break;
}
offset += chunk_size + (chunk_size & 1U);
}
return have_format && have_data &&
audio_format == 1 &&
(info->channels == 1 || info->channels == 2) &&
info->sample_rate == AUDIO_SAMPLE_RATE &&
info->bits_per_sample == AUDIO_BITS_PER_SAMPLE;
}
bool playTone(int frequency, int durationMs, int volume, std::string& error) {
auto& state = getState();
if (!begin_audio(state, error)) {
return false;
}
bool success = false;
if (!configure_i2s(state, AUDIO_SAMPLE_RATE, 1, error)) {
goto done;
}
{
int16_t samples[AUDIO_CHUNK_SAMPLES];
size_t total_samples = (size_t)AUDIO_SAMPLE_RATE * durationMs / 1000;
size_t generated = 0;
float phase = 0.0f;
float phase_step = 2.0f * (float)M_PI * frequency / AUDIO_SAMPLE_RATE;
int amplitude = 32767 * volume / 100;
while (generated < total_samples && state.audioRunning) {
size_t count = total_samples - generated;
if (count > AUDIO_CHUNK_SAMPLES) {
count = AUDIO_CHUNK_SAMPLES;
}
for (size_t index = 0; index < count; ++index) {
samples[index] = (int16_t)(sinf(phase) * amplitude);
phase += phase_step;
if (phase >= 2.0f * (float)M_PI) {
phase -= 2.0f * (float)M_PI;
}
}
// Apply volume already in samples amplitude, reuse write_audio path via audio_stream
size_t bytes_written = 0;
error_t result = ERROR_NONE;
if (state.audioHandle != nullptr) {
result = audio_stream_write(state.audioHandle, samples, count * sizeof(int16_t), &bytes_written, pdMS_TO_TICKS(500));
} else {
result = i2s_controller_write(state.i2sDevice, samples, count * sizeof(int16_t), &bytes_written, pdMS_TO_TICKS(250));
}
if (result != ERROR_NONE || bytes_written != count * sizeof(int16_t)) {
LOG_E(TAG, "Tone write failed: result=%d written=%u", result, (unsigned)bytes_written);
set_error(error, "Audio tone playback failed");
goto done;
}
generated += count;
}
}
success = state.audioRunning;
if (!success) {
set_error(error, "Tone playback was cancelled");
}
done:
end_audio(state);
return success;
}
bool recordVoice(int durationSec, const std::string& filename, size_t& recordedBytes, std::string& error) {
auto& state = getState();
recordedBytes = 0;
if (!begin_audio(state, error)) {
return false;
}
bool success = false;
FILE* file = NULL;
char path[256];
if (!resolve_file(filename, path, sizeof(path), error)) {
goto done;
}
// For recording, open input stream
if (state.audioStreamDevice != nullptr) {
if (state.audioHandle != nullptr) {
audio_stream_close(state.audioHandle);
state.audioHandle = nullptr;
}
AudioStreamConfig in_cfg = {
.sample_rate = AUDIO_SAMPLE_RATE,
.bits_per_sample = AUDIO_BITS_PER_SAMPLE,
.channels = 1,
};
if (audio_stream_open_input(state.audioStreamDevice, &in_cfg, &state.audioHandle) != ERROR_NONE) {
set_error(error, "Failed to open audio input stream");
goto done;
}
} else {
if (!configure_i2s(state, AUDIO_SAMPLE_RATE, 1, error)) {
goto done;
}
}
file = fopen(path, "wb");
if (file == NULL) {
set_error(error, "Failed to open the recording file");
goto done;
}
{
uint8_t buffer[AUDIO_CHUNK_BYTES];
size_t target = (size_t)AUDIO_SAMPLE_RATE * 2 * durationSec;
size_t total = 0;
while (total < target && state.audioRunning) {
size_t remaining = target - total;
size_t requested = remaining < sizeof(buffer) ? remaining : sizeof(buffer);
size_t bytes_read = 0;
error_t result = ERROR_NONE;
if (state.audioHandle != nullptr) {
result = audio_stream_read(state.audioHandle, buffer, requested, &bytes_read, pdMS_TO_TICKS(500));
} else {
result = i2s_controller_read(state.i2sDevice, buffer, requested, &bytes_read, pdMS_TO_TICKS(250));
}
if (result != ERROR_NONE || bytes_read == 0) {
LOG_E(TAG, "I2S read failed: result=%d read=%u", result, (unsigned)bytes_read);
set_error(error, "I2S recording failed");
goto done;
}
if (fwrite(buffer, 1, bytes_read, file) != bytes_read) {
set_error(error, "Failed to write the recording file");
goto done;
}
total += bytes_read;
}
if (!state.audioRunning) {
set_error(error, "Recording was cancelled");
goto done;
}
recordedBytes = total;
success = true;
}
done:
if (file != NULL) {
fclose(file);
}
end_audio(state);
return success;
}
bool playWavMemory(const uint8_t* data, size_t size, int volume, std::string& error) {
auto& state = getState();
if (!begin_audio(state, error)) {
return false;
}
bool success = false;
WavInfo info;
if (!parse_wav(data, size, &info)) {
set_error(error, "WAV must be 16 kHz, 16-bit PCM, mono or stereo");
goto done;
}
if (!configure_i2s(state, info.sample_rate, info.channels, error)) {
goto done;
}
{
size_t offset = 0;
while (offset < info.data_size) {
size_t chunk_size = info.data_size - offset;
if (chunk_size > AUDIO_CHUNK_BYTES) {
chunk_size = AUDIO_CHUNK_BYTES;
}
if (!write_audio(
state,
const_cast<uint8_t*>(data) + info.data_offset + offset,
chunk_size,
volume,
error)) {
goto done;
}
offset += chunk_size;
}
success = true;
}
done:
end_audio(state);
return success;
}
bool playAudioFile(const std::string& filename, int volume, std::string& error) {
auto& state = getState();
if (!begin_audio(state, error)) {
return false;
}
bool success = false;
FILE* file = NULL;
char path[256];
long file_size = 0;
if (!resolve_file(filename, path, sizeof(path), error)) {
goto done;
}
file = fopen(path, "rb");
if (file == NULL || fseek(file, 0, SEEK_END) != 0) {
set_error(error, "Audio file was not found");
goto done;
}
file_size = ftell(file);
if (file_size <= 0 || file_size > 512 * 1024 || fseek(file, 0, SEEK_SET) != 0) {
set_error(error, "Audio file is empty or exceeds 512 KiB");
goto done;
}
{
WavInfo info;
if (!parse_wav_file(file, (size_t)file_size, &info)) {
set_error(error, "WAV must be 16 kHz, 16-bit PCM, mono or stereo");
goto done;
}
if (!configure_i2s(state, info.sample_rate, info.channels, error)) {
goto done;
}
if (fseek(file, (long)info.data_offset, SEEK_SET) != 0) {
set_error(error, "Failed to seek to WAV audio data");
goto done;
}
uint8_t buffer[AUDIO_CHUNK_BYTES];
size_t offset = 0;
while (offset < info.data_size) {
size_t chunk_size = info.data_size - offset;
if (chunk_size > sizeof(buffer)) {
chunk_size = sizeof(buffer);
}
if (fread(buffer, 1, chunk_size, file) != chunk_size) {
set_error(error, "Failed to read WAV audio data");
goto done;
}
if (!write_audio(state, buffer, chunk_size, volume, error)) {
goto done;
}
offset += chunk_size;
}
success = true;
}
done:
if (file != NULL) {
fclose(file);
}
end_audio(state);
return success;
}
static bool mp3_frame_valid(const mp3dec_frame_info_t* info, int samples) {
return samples > 0 &&
(info->channels == 1 || info->channels == 2) &&
info->hz >= 8000 &&
info->hz <= 48000;
}
static bool play_mp3_buffer(
McpSystemState& state,
mp3dec_t* decoder,
mp3d_sample_t* pcm,
const uint8_t* data,
size_t data_size,
int volume,
int* configured_rate,
int* configured_channels,
size_t* consumed,
std::string& error
) {
mp3dec_frame_info_t info;
memset(&info, 0, sizeof(info));
int samples = mp3dec_decode_frame(
decoder,
data,
(int)data_size,
pcm,
&info
);
if (info.frame_bytes <= 0) {
*consumed = 0;
return true;
}
*consumed = (size_t)info.frame_bytes;
if (samples == 0) {
return true;
}
if (!mp3_frame_valid(&info, samples)) {
set_error(error, "Unsupported MP3 frame format");
return false;
}
if (*configured_rate != info.hz || *configured_channels != info.channels) {
if (!configure_i2s(
state,
info.hz,
info.channels,
error)) {
return false;
}
*configured_rate = info.hz;
*configured_channels = info.channels;
}
return write_audio(
state,
(uint8_t*)pcm,
(size_t)samples * info.channels * sizeof(mp3d_sample_t),
volume,
error
);
}
bool playMp3Memory(const uint8_t* data, size_t size, int volume, std::string& error) {
auto& state = getState();
if (data == NULL || size == 0) {
set_error(error, "MP3 data is empty");
return false;
}
if (!begin_audio(state, error)) {
return false;
}
bool success = false;
bool decoded_audio = false;
mp3dec_t* decoder = (mp3dec_t*)malloc(sizeof(mp3dec_t));
mp3d_sample_t* pcm = (mp3d_sample_t*)malloc(
MINIMP3_MAX_SAMPLES_PER_FRAME * sizeof(mp3d_sample_t)
);
int configured_rate = 0;
int configured_channels = 0;
size_t offset = 0;
if (decoder == NULL || pcm == NULL) {
free(decoder);
free(pcm);
set_error(error, "Out of memory for MP3 decoding");
goto done;
}
mp3dec_init(decoder);
LOG_I(TAG, "playMp3Memory: starting loop, total size=%u", (unsigned)size);
while (offset < size && state.audioRunning) {
size_t consumed = 0;
if (!play_mp3_buffer(
state,
decoder,
pcm,
data + offset,
size - offset,
volume,
&configured_rate,
&configured_channels,
&consumed,
error)) {
free(decoder);
free(pcm);
goto done;
}
if (consumed == 0) {
LOG_I(TAG, "playMp3Memory: consumed == 0, breaking");
break;
}
decoded_audio = decoded_audio || configured_rate != 0;
offset += consumed;
taskYIELD();
}
LOG_I(TAG, "playMp3Memory: loop ended, offset=%u", (unsigned)offset);
free(decoder);
free(pcm);
if (!state.audioRunning) {
set_error(error, "MP3 playback was cancelled");
goto done;
}
if (!decoded_audio) {
set_error(error, "No valid MP3 audio frames were found");
goto done;
}
success = true;
done:
end_audio(state);
return success;
}
bool playMp3File(const std::string& filename, int volume, std::string& error) {
auto& state = getState();
if (!begin_audio(state, error)) {
return false;
}
bool success = false;
bool decoded_audio = false;
FILE* file = NULL;
char path[256];
if (!resolve_file(filename, path, sizeof(path), error)) {
goto done;
}
file = fopen(path, "rb");
if (file == NULL) {
set_error(error, "MP3 file was not found");
goto done;
}
{
uint8_t* input = (uint8_t*)malloc(MP3_INPUT_BUFFER_SIZE);
if (input == NULL) {
set_error(error, "Out of memory for MP3 decoding");
goto done;
}
mp3dec_t* decoder = (mp3dec_t*)malloc(sizeof(mp3dec_t));
mp3d_sample_t* pcm = (mp3d_sample_t*)malloc(
MINIMP3_MAX_SAMPLES_PER_FRAME * sizeof(mp3d_sample_t)
);
if (decoder == NULL || pcm == NULL) {
free(decoder);
free(pcm);
free(input);
set_error(error, "Out of memory for MP3 decoding");
goto done;
}
mp3dec_init(decoder);
int configured_rate = 0;
int configured_channels = 0;
size_t buffered = 0;
bool end_of_file = false;
while (state.audioRunning) {
if (!end_of_file && buffered < MP3_INPUT_BUFFER_SIZE) {
size_t read = fread(
input + buffered,
1,
MP3_INPUT_BUFFER_SIZE - buffered,
file
);
buffered += read;
end_of_file = read == 0;
}
if (buffered == 0) {
break;
}
size_t consumed = 0;
if (!play_mp3_buffer(
state,
decoder,
pcm,
input,
buffered,
volume,
&configured_rate,
&configured_channels,
&consumed,
error)) {
free(input);
free(decoder);
free(pcm);
goto done;
}
if (consumed == 0) {
if (end_of_file) {
break;
}
if (buffered == MP3_INPUT_BUFFER_SIZE) {
memmove(input, input + 1, --buffered);
}
continue;
}
decoded_audio = decoded_audio || configured_rate != 0;
buffered -= consumed;
memmove(input, input + consumed, buffered);
taskYIELD();
}
free(input);
free(decoder);
free(pcm);
if (!state.audioRunning) {
set_error(error, "MP3 playback was cancelled");
goto done;
}
if (!decoded_audio) {
set_error(error, "No valid MP3 audio frames were found");
goto done;
}
success = true;
}
done:
if (file != NULL) {
fclose(file);
}
end_audio(state);
return success;
}
#ifdef __cplusplus
extern "C" {
#endif
struct Bmi270Data {
float ax, ay, az;
float gx, gy, gz;
};
error_t bmi270_read(struct Device* device, struct Bmi270Data* data) __attribute__((weak));
struct Mpu6886Data {
float ax, ay, az;
float gx, gy, gz;
};
error_t mpu6886_read(struct Device* device, struct Mpu6886Data* data) __attribute__((weak));
struct Qmi8658Data {
float ax, ay, az;
float gx, gy, gz;
};
error_t qmi8658_read(struct Device* device, struct Qmi8658Data* data) __attribute__((weak));
#ifdef __cplusplus
}
#endif
bool getBatteryStatus(double& voltage_v, int& percentage_pct, std::string& error) {
auto power = hal::findFirstDevice<hal::power::PowerDevice>(hal::Device::Type::Power);
if (power == nullptr) {
error = "Power device not found";
return false;
}
hal::power::PowerDevice::MetricData data;
uint32_t voltage_mv = 0;
if (power->getMetric(hal::power::PowerDevice::MetricType::BatteryVoltage, data)) {
voltage_mv = data.valueAsUint32;
}
uint8_t charge_level = 0;
if (power->getMetric(hal::power::PowerDevice::MetricType::ChargeLevel, data)) {
charge_level = data.valueAsUint8;
}
voltage_v = (double)voltage_mv / 1000.0;
percentage_pct = (int)charge_level;
return true;
}
bool setLedColor(int r, int g, int b, const std::string& mode, std::string& error) {
LOG_I(TAG, "setLedColor: R=%d, G=%d, B=%d, Mode=%s", r, g, b, mode.c_str());
return true;
}
bool getSensors(double& temp_c, double& hum_pct, std::string& imu_json, std::string& error) {
temp_c = 22.5;
hum_pct = 50.0;
cJSON* imu = cJSON_CreateObject();
bool has_imu = false;
struct Device* bmi = device_find_by_name("bmi270");
if (bmi != nullptr && bmi270_read != nullptr) {
Bmi270Data data;
if (bmi270_read(bmi, &data) == ERROR_NONE) {
cJSON_AddNumberToObject(imu, "ax", data.ax);
cJSON_AddNumberToObject(imu, "ay", data.ay);
cJSON_AddNumberToObject(imu, "az", data.az);
cJSON_AddNumberToObject(imu, "gx", data.gx);
cJSON_AddNumberToObject(imu, "gy", data.gy);
cJSON_AddNumberToObject(imu, "gz", data.gz);
has_imu = true;
}
}
if (!has_imu) {
struct Device* mpu = device_find_by_name("mpu6886");
if (mpu != nullptr && mpu6886_read != nullptr) {
Mpu6886Data data;
if (mpu6886_read(mpu, &data) == ERROR_NONE) {
cJSON_AddNumberToObject(imu, "ax", data.ax);
cJSON_AddNumberToObject(imu, "ay", data.ay);
cJSON_AddNumberToObject(imu, "az", data.az);
cJSON_AddNumberToObject(imu, "gx", data.gx);
cJSON_AddNumberToObject(imu, "gy", data.gy);
cJSON_AddNumberToObject(imu, "gz", data.gz);
has_imu = true;
}
}
}
if (!has_imu) {
struct Device* qmi = device_find_by_name("qmi8658");
if (qmi != nullptr && qmi8658_read != nullptr) {
Qmi8658Data data;
if (qmi8658_read(qmi, &data) == ERROR_NONE) {
cJSON_AddNumberToObject(imu, "ax", data.ax);
cJSON_AddNumberToObject(imu, "ay", data.ay);
cJSON_AddNumberToObject(imu, "az", data.az);
cJSON_AddNumberToObject(imu, "gx", data.gx);
cJSON_AddNumberToObject(imu, "gy", data.gy);
cJSON_AddNumberToObject(imu, "gz", data.gz);
has_imu = true;
}
}
}
if (has_imu) {
char* printed = cJSON_PrintUnformatted(imu);
if (printed != nullptr) {
imu_json = printed;
free(printed);
}
} else {
imu_json = "{}";
}
cJSON_Delete(imu);
return true;
}
bool scanBleDevices(int duration_ms, std::string& devices_json, std::string& error) {
struct Device* dev = bluetooth_find_first_ready_device();
if (dev == nullptr) {
error = "BLE device not found";
return false;
}
auto radio_state = bluetooth::getRadioState();
bool originally_off = (radio_state == bluetooth::RadioState::Off);
if (radio_state != bluetooth::RadioState::On) {
LOG_I(TAG, "Enabling BLE radio for scanning");
bluetooth_set_radio_enabled(dev, true);
for (int i = 0; i < 20; ++i) {
vTaskDelay(pdMS_TO_TICKS(100));
if (bluetooth::getRadioState() == bluetooth::RadioState::On) {
break;
}
}
if (bluetooth::getRadioState() != bluetooth::RadioState::On) {
error = "Failed to enable Bluetooth radio";
return false;
}
}
LOG_I(TAG, "Starting BLE scan for %d ms", duration_ms);
bluetooth_scan_start(dev);
vTaskDelay(pdMS_TO_TICKS(duration_ms));
bluetooth_scan_stop(dev);
vTaskDelay(pdMS_TO_TICKS(100));
std::vector<bluetooth::PeerRecord> peers = bluetooth::getScanResults();
cJSON* root = cJSON_CreateObject();
cJSON* dev_array = cJSON_AddArrayToObject(root, "devices");
for (const auto& peer : peers) {
cJSON* item = cJSON_CreateObject();
char mac_str[18];
snprintf(mac_str, sizeof(mac_str), "%02X:%02X:%02X:%02X:%02X:%02X",
peer.addr[0], peer.addr[1], peer.addr[2],
peer.addr[3], peer.addr[4], peer.addr[5]);
cJSON_AddStringToObject(item, "address", mac_str);
cJSON_AddStringToObject(item, "name", peer.name.c_str());
cJSON_AddNumberToObject(item, "rssi", peer.rssi);
cJSON_AddBoolToObject(item, "paired", peer.paired);
cJSON_AddBoolToObject(item, "connected", peer.connected);
cJSON_AddItemToArray(dev_array, item);
}
char* printed = cJSON_PrintUnformatted(root);
if (printed != nullptr) {
devices_json = printed;
free(printed);
} else {
devices_json = "{\"devices\":[]}";
}
cJSON_Delete(root);
if (originally_off) {
LOG_I(TAG, "Restoring BLE radio state to off");
bluetooth_set_radio_enabled(dev, false);
}
return true;
}
static bool resolve_sd_path(const std::string& input_path, std::string& out_resolved_path, std::string& error) {
if (input_path.empty()) {
error = "Path is empty";
return false;
}
if (input_path.find("..") != std::string::npos) {
error = "Directory traversal is forbidden";
return false;
}
std::string rel = input_path;
while (rel.starts_with("/")) {
rel = rel.substr(1);
}
while (rel.starts_with("./")) {
rel = rel.substr(2);
}
if (rel.empty()) {
error = "Path resolves to empty";
return false;
}
out_resolved_path = "/sdcard/" + rel;
return true;
}
bool writeSdFile(const std::string& filename, const std::string& content, std::string& error) {
std::string resolved_path;
if (!resolve_sd_path(filename, resolved_path, error)) {
return false;
}
if (!file::findOrCreateParentDirectory(resolved_path, 0755)) {
error = "Failed to create parent directory";
return false;
}
if (!file::writeString(resolved_path, content)) {
error = "Failed to write file";
return false;
}
return true;
}
bool readSdFile(const std::string& filename, std::string& content, std::string& error) {
std::string resolved_path;
if (!resolve_sd_path(filename, resolved_path, error)) {
return false;
}
if (!file::isFile(resolved_path)) {
error = "File does not exist";
return false;
}
auto read_buf = file::readString(resolved_path);
if (read_buf == nullptr) {
error = "Failed to read file";
return false;
}
content = reinterpret_cast<const char*>(read_buf.get());
return true;
}
bool downloadSdFile(const std::string& url, const std::string& filename, std::string& error) {
std::string resolved_path;
if (!resolve_sd_path(filename, resolved_path, error)) {
return false;
}
if (!file::findOrCreateParentDirectory(resolved_path, 0755)) {
error = "Failed to create parent directory";
return false;
}
SemaphoreHandle_t sem = xSemaphoreCreateBinary();
if (sem == nullptr) {
error = "Failed to create semaphore";
return false;
}
struct DownloadState {
SemaphoreHandle_t sem;
bool success;
std::string err_msg;
};
auto state = std::make_shared<DownloadState>();
state->sem = sem;
state->success = false;
tt::network::http::download(
url,
"/system/certificates/WE1.pem",
resolved_path,
[state]() {
state->success = true;
xSemaphoreGive(state->sem);
},
[state](const char* err) {
state->success = false;
state->err_msg = err ? err : "Unknown error";
xSemaphoreGive(state->sem);
}
);
if (xSemaphoreTake(sem, pdMS_TO_TICKS(30000)) != pdTRUE) {
error = "Download timed out after 30 seconds";
vSemaphoreDelete(sem);
return false;
}
vSemaphoreDelete(sem);
if (!state->success) {
error = state->err_msg;
return false;
}
return true;
}
static void mcp_video_stream_task(void* pvParameters) {
auto& state = getState();
int mono_server_fd = -1;
int color_server_fd = -1;
int mono_client_fd = -1;
int color_client_fd = -1;
uint8_t* mono_buffer = (uint8_t*)heap_caps_malloc(15000, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
if (mono_buffer == nullptr) mono_buffer = (uint8_t*)heap_caps_malloc(15000, MALLOC_CAP_8BIT);
uint8_t* color_buffer = (uint8_t*)heap_caps_malloc(153600, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
if (color_buffer == nullptr) color_buffer = (uint8_t*)heap_caps_malloc(153600, MALLOC_CAP_8BIT);
if (mono_buffer == nullptr || color_buffer == nullptr) {
LOG_E(TAG, "Failed to allocate video stream buffers");
if (mono_buffer) heap_caps_free(mono_buffer);
if (color_buffer) heap_caps_free(color_buffer);
state.streamRunning = false;
vTaskDelete(nullptr);
return;
}
// Create Mono TCP Server Socket
mono_server_fd = socket(AF_INET, SOCK_STREAM, 0);
if (mono_server_fd >= 0) {
int opt = 1;
setsockopt(mono_server_fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
struct sockaddr_in address;
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(8081);
if (bind(mono_server_fd, (struct sockaddr*)&address, sizeof(address)) >= 0) {
listen(mono_server_fd, 1);
fcntl(mono_server_fd, F_SETFL, O_NONBLOCK);
LOG_I(TAG, "Mono TCP Video stream server started on port 8081");
} else {
LOG_E(TAG, "Failed to bind Mono TCP socket");
close(mono_server_fd);
mono_server_fd = -1;
}
}
// Create Color TCP Server Socket
color_server_fd = socket(AF_INET, SOCK_STREAM, 0);
if (color_server_fd >= 0) {
int opt = 1;
setsockopt(color_server_fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
struct sockaddr_in address;
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(8083);
if (bind(color_server_fd, (struct sockaddr*)&address, sizeof(address)) >= 0) {
listen(color_server_fd, 1);
fcntl(color_server_fd, F_SETFL, O_NONBLOCK);
LOG_I(TAG, "Color TCP Video stream server started on port 8083");
} else {
LOG_E(TAG, "Failed to bind Color TCP socket");
close(color_server_fd);
color_server_fd = -1;
}
}
uint32_t mono_received = 0;
uint32_t color_header_received = 0;
uint32_t color_payload_received = 0;
uint8_t color_header[16];
uint16_t color_x = 0, color_y = 0, color_w = 0, color_h = 0;
uint32_t color_payload_len = 0;
uint32_t last_packet_time = xTaskGetTickCount();
uint32_t fps_start_time = xTaskGetTickCount();
uint32_t fps_frame_count = 0;
while (state.streamRunning) {
uint32_t now = xTaskGetTickCount();
// Update FPS every 1 second
if (now - fps_start_time >= pdMS_TO_TICKS(1000)) {
state.lastFps = (double)fps_frame_count * 1000.0 / pdTICKS_TO_MS(now - fps_start_time);
fps_frame_count = 0;
fps_start_time = now;
}
// Handle inactivity timeout (3 seconds) for active video stream clients
bool streamClientConnected = (mono_client_fd >= 0 || color_client_fd >= 0);
if (state.overrideActive && streamClientConnected && (now - last_packet_time) > pdMS_TO_TICKS(3000)) {
LOG_I(TAG, "Video stream timed out. Returning to normal screensaver.");
state.overrideActive = false;
if (mono_client_fd >= 0) {
close(mono_client_fd);
mono_client_fd = -1;
}
if (color_client_fd >= 0) {
close(color_client_fd);
color_client_fd = -1;
}
auto idleService = service::displayidle::findService();
if (idleService) {
idleService->stopScreensaver();
}
}
// 1. Accept Mono client
if (mono_server_fd >= 0 && mono_client_fd < 0) {
struct sockaddr_in client_addr;
socklen_t addr_len = sizeof(client_addr);
int client = accept(mono_server_fd, (struct sockaddr*)&client_addr, &addr_len);
if (client >= 0) {
mono_client_fd = client;
fcntl(mono_client_fd, F_SETFL, O_NONBLOCK);
mono_received = 0;
last_packet_time = now;
LOG_I(TAG, "Mono TCP Stream client connected");
}
}
// 2. Read Mono client data
if (mono_client_fd >= 0) {
int remaining = 15000 - mono_received;
int n = recv(mono_client_fd, mono_buffer + mono_received, remaining, 0);
if (n > 0) {
mono_received += n;
last_packet_time = now;
state.tcpBytesReceived += n;
if (mono_received == 15000) {
uint32_t draw_start = xTaskGetTickCount();
if (ensureOverrideScreen()) {
if (lvgl::lock(pdMS_TO_TICKS(1500))) {
if (display_ready(state)) {
size_t pixel_count = (size_t)state.drawWidth * state.drawHeight;
for (size_t i = 0; i < pixel_count; ++i) {
state.framebuffer[i] = 0xFFFF; // Fill canvas with white
}
int x_off = (state.drawWidth - 200) / 2;
int y_off = (state.drawHeight - 240) / 2;
for (int index = 0; index < 15000; ++index) {
uint8_t val = mono_buffer[index];
if (val == 0) continue;
int byte_x = index / 75;
int block_y = index % 75;
int x_base = 2 * byte_x + x_off;
int y_base = 299 - 4 * block_y + y_off;
if ((val & 0x80) && y_base >= 0 && y_base < state.drawHeight)
put_pixel(state, x_base, y_base, 0x0000);
if ((val & 0x40) && y_base >= 0 && y_base < state.drawHeight)
put_pixel(state, x_base + 1, y_base, 0x0000);
if ((val & 0x20) && (y_base - 1) >= 0 && (y_base - 1) < state.drawHeight)
put_pixel(state, x_base, y_base - 1, 0x0000);
if ((val & 0x10) && (y_base - 1) >= 0 && (y_base - 1) < state.drawHeight)
put_pixel(state, x_base + 1, y_base - 1, 0x0000);
if ((val & 0x08) && (y_base - 2) >= 0 && (y_base - 2) < state.drawHeight)
put_pixel(state, x_base, y_base - 2, 0x0000);
if ((val & 0x04) && (y_base - 2) >= 0 && (y_base - 2) < state.drawHeight)
put_pixel(state, x_base + 1, y_base - 2, 0x0000);
if ((val & 0x02) && (y_base - 3) >= 0 && (y_base - 3) < state.drawHeight)
put_pixel(state, x_base, y_base - 3, 0x0000);
if ((val & 0x01) && (y_base - 3) >= 0 && (y_base - 3) < state.drawHeight)
put_pixel(state, x_base + 1, y_base - 3, 0x0000);
}
lv_obj_invalidate(state.drawArea);
state.overrideActive = true;
}
lvgl::unlock();
}
}
state.lastDrawMs = pdTICKS_TO_MS(xTaskGetTickCount() - draw_start);
state.framesDrawn++;
fps_frame_count++;
mono_received = 0;
}
} else if (n == 0 || (n < 0 && errno != EAGAIN && errno != EWOULDBLOCK)) {
LOG_I(TAG, "Mono TCP Stream client disconnected");
close(mono_client_fd);
mono_client_fd = -1;
mono_received = 0;
if (color_client_fd < 0 && state.overrideActive) {
state.overrideActive = false;
auto idleService = service::displayidle::findService();
if (idleService) {
idleService->stopScreensaver();
}
}
}
}
// 3. Accept Color client
if (color_server_fd >= 0 && color_client_fd < 0) {
struct sockaddr_in client_addr;
socklen_t addr_len = sizeof(client_addr);
int client = accept(color_server_fd, (struct sockaddr*)&client_addr, &addr_len);
if (client >= 0) {
color_client_fd = client;
fcntl(color_client_fd, F_SETFL, O_NONBLOCK);
color_header_received = 0;
color_payload_received = 0;
last_packet_time = now;
LOG_I(TAG, "Color TCP Stream client connected");
}
}
// 4. Read Color client data
if (color_client_fd >= 0) {
if (color_header_received < 16) {
int remaining = 16 - color_header_received;
int n = recv(color_client_fd, color_header + color_header_received, remaining, 0);
if (n > 0) {
color_header_received += n;
last_packet_time = now;
state.tcpBytesReceived += n;
if (color_header_received == 16) {
if (memcmp(color_header, "RAW\x01", 4) != 0) {
LOG_W(TAG, "Invalid Color Stream magic! Disconnecting client.");
close(color_client_fd);
color_client_fd = -1;
} else {
color_x = ((uint16_t)color_header[4] << 8) | color_header[5];
color_y = ((uint16_t)color_header[6] << 8) | color_header[7];
color_w = ((uint16_t)color_header[8] << 8) | color_header[9];
color_h = ((uint16_t)color_header[10] << 8) | color_header[11];
color_payload_len = ((uint32_t)color_header[12] << 24) |
((uint32_t)color_header[13] << 16) |
((uint32_t)color_header[14] << 8) |
color_header[15];
color_payload_received = 0;
if (color_payload_len > 153600) {
LOG_W(TAG, "Color stream payload too large (%u bytes). Disconnecting.", color_payload_len);
close(color_client_fd);
color_client_fd = -1;
}
}
}
} else if (n == 0 || (n < 0 && errno != EAGAIN && errno != EWOULDBLOCK)) {
LOG_I(TAG, "Color TCP Stream client disconnected during header read");
close(color_client_fd);
color_client_fd = -1;
if (mono_client_fd < 0 && state.overrideActive) {
state.overrideActive = false;
auto idleService = service::displayidle::findService();
if (idleService) {
idleService->stopScreensaver();
}
}
}
}
if (color_client_fd >= 0 && color_header_received == 16 && color_payload_len > 0) {
int remaining = color_payload_len - color_payload_received;
int n = recv(color_client_fd, color_buffer + color_payload_received, remaining, 0);
if (n > 0) {
color_payload_received += n;
last_packet_time = now;
state.tcpBytesReceived += n;
if (color_payload_received == color_payload_len) {
uint32_t draw_start = xTaskGetTickCount();
mcp::drawRgb565(color_buffer, color_payload_len, color_x, color_y, color_w, color_h);
state.lastDrawMs = pdTICKS_TO_MS(xTaskGetTickCount() - draw_start);
state.framesDrawn++;
fps_frame_count++;
color_header_received = 0;
color_payload_len = 0;
color_payload_received = 0;
}
} else if (n == 0 || (n < 0 && errno != EAGAIN && errno != EWOULDBLOCK)) {
LOG_I(TAG, "Color TCP Stream client disconnected during payload read");
close(color_client_fd);
color_client_fd = -1;
if (mono_client_fd < 0 && state.overrideActive) {
state.overrideActive = false;
auto idleService = service::displayidle::findService();
if (idleService) {
idleService->stopScreensaver();
}
}
}
}
}
// Yield: longer delay when no client connected to save CPU
// RLCD ST7305 SPI is slow and shared - don't hog LVGL lock (fix freeze)
if (mono_client_fd < 0 && color_client_fd < 0) {
vTaskDelay(pdMS_TO_TICKS(100));
} else {
vTaskDelay(pdMS_TO_TICKS(30));
}
}
if (mono_client_fd >= 0) close(mono_client_fd);
if (color_client_fd >= 0) close(color_client_fd);
if (mono_server_fd >= 0) close(mono_server_fd);
if (color_server_fd >= 0) close(color_server_fd);
heap_caps_free(mono_buffer);
heap_caps_free(color_buffer);
LOG_I(TAG, "Video stream server task stopped");
state.streamTaskHandle = nullptr;
vTaskDelete(nullptr);
}
bool startVideoStreamServer() {
auto& state = getState();
if (state.streamRunning) {
return true;
}
state.streamRunning = true;
state.framesDrawn = 0;
state.tcpBytesReceived = 0;
state.lastDrawMs = 0;
state.lastFps = 0.0;
BaseType_t ret = xTaskCreatePinnedToCore(
mcp_video_stream_task,
"mcp_video_stream",
8192,
nullptr,
5,
(TaskHandle_t*)&state.streamTaskHandle,
1
);
if (ret != pdPASS) {
state.streamRunning = false;
LOG_E(TAG, "Failed to spawn video stream task");
return false;
}
return true;
}
void stopVideoStreamServer() {
auto& state = getState();
if (!state.streamRunning) {
return;
}
state.streamRunning = false;
for (int i = 0; i < 20; ++i) {
vTaskDelay(pdMS_TO_TICKS(50));
if (state.streamTaskHandle == nullptr) {
break;
}
}
}
bool getVideoStreamStats(std::string& stats_json) {
auto& state = getState();
cJSON* root = cJSON_CreateObject();
cJSON_AddNumberToObject(root, "frames_drawn", state.framesDrawn);
cJSON_AddNumberToObject(root, "tcp_bytes_received", state.tcpBytesReceived);
cJSON_AddNumberToObject(root, "last_draw_ms", state.lastDrawMs);
cJSON_AddNumberToObject(root, "last_fps", state.lastFps);
cJSON_AddBoolToObject(root, "active", state.overrideActive);
char* printed = cJSON_PrintUnformatted(root);
if (printed != nullptr) {
stats_json = printed;
free(printed);
} else {
stats_json = "{}";
}
cJSON_Delete(root);
return true;
}
bool listApps(std::string& apps_json, std::string& error) {
auto manifests = app::getAppManifests();
cJSON* root = cJSON_CreateObject();
cJSON* apps_array = cJSON_AddArrayToObject(root, "apps");
for (const auto& manifest : manifests) {
cJSON* item = cJSON_CreateObject();
cJSON_AddStringToObject(item, "appId", manifest->appId.c_str());
cJSON_AddStringToObject(item, "appName", manifest->appName.c_str());
cJSON_AddStringToObject(item, "appIcon", manifest->appIcon.c_str());
cJSON_AddStringToObject(item, "appVersionName", manifest->appVersionName.c_str());
cJSON_AddNumberToObject(item, "appVersionCode", manifest->appVersionCode);
const char* category = "User";
if (manifest->appCategory == app::Category::System) {
category = "System";
} else if (manifest->appCategory == app::Category::Settings) {
category = "Settings";
}
cJSON_AddStringToObject(item, "appCategory", category);
cJSON_AddBoolToObject(item, "isExternal", manifest->appLocation.isExternal());
if (manifest->appLocation.isExternal()) {
cJSON_AddStringToObject(item, "path", manifest->appLocation.getPath().c_str());
} else {
cJSON_AddStringToObject(item, "path", "internal");
}
cJSON_AddNumberToObject(item, "appFlags", manifest->appFlags);
cJSON_AddItemToArray(apps_array, item);
}
char* printed = cJSON_PrintUnformatted(root);
if (printed != nullptr) {
apps_json = printed;
free(printed);
} else {
apps_json = "{\"apps\":[]}";
}
cJSON_Delete(root);
return true;
}
bool runApp(const std::string& appId, std::string& error) {
auto manifest = app::findAppManifestById(appId);
if (manifest == nullptr) {
error = "Application not found";
return false;
}
app::start(appId);
return true;
}
bool listSdFiles(const std::string& directory, std::string& files_json, std::string& error) {
std::string resolved_path;
if (!resolve_sd_path(directory, resolved_path, error)) {
return false;
}
DIR* dir = opendir(resolved_path.c_str());
if (dir == nullptr) {
error = "Failed to open directory";
return false;
}
cJSON* root = cJSON_CreateObject();
cJSON* file_array = cJSON_AddArrayToObject(root, "files");
struct dirent* entry;
while ((entry = readdir(dir)) != nullptr) {
if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {
continue;
}
cJSON* item = cJSON_CreateObject();
cJSON_AddStringToObject(item, "name", entry->d_name);
std::string full_filepath = resolved_path;
if (!full_filepath.ends_with("/")) {
full_filepath += "/";
}
full_filepath += entry->d_name;
struct stat st;
if (stat(full_filepath.c_str(), &st) == 0) {
bool is_dir = S_ISDIR(st.st_mode);
cJSON_AddStringToObject(item, "type", is_dir ? "directory" : "file");
if (!is_dir) {
cJSON_AddNumberToObject(item, "size", st.st_size);
}
} else {
cJSON_AddStringToObject(item, "type", entry->d_type == DT_DIR ? "directory" : "file");
}
cJSON_AddItemToArray(file_array, item);
}
closedir(dir);
char* printed = cJSON_PrintUnformatted(root);
if (printed != nullptr) {
files_json = printed;
free(printed);
} else {
files_json = "{\"files\":[]}";
}
cJSON_Delete(root);
return true;
}
} // namespace tt::mcp
#endif
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