stats-display/stats-viewer/stats-viewer.ino

500 lines
13 KiB
Arduino
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#include <Arduino.h>
#include <U8g2lib.h>
#include "stats_font1x1.h"
#include "stats_font2x2.h"
#include "stats_font4x4.h"
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#include "glyphs.h"
#include "stats_dto.h"
#ifdef U8X8_HAVE_HW_I2C
#include <Wire.h>
#endif
//#define DEBUG
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#ifdef DEBUG
#define D
#else
#define D for(;0;)
#endif
#define SCROLL_SPEED 3
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#define NO_DATA_TIMEOUT 5 * 1000
// I²C pins SCL, SDA
#define DISP1_PINS 27, 26
#define DISP2_PINS 25, 33
#define LID_PIN 18
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#define USE_ESP32_I2C_HAL
#ifdef USE_ESP32_I2C_HAL
#include "u8g2_esp32_hal.h"
#include "u8g2_esp32_hal.c"
class U8G2_CUSTOM_SSD1306_128X32_UNIVISION_F_ESP32_HAL_I2C : public U8G2 {
public: U8G2_CUSTOM_SSD1306_128X32_UNIVISION_F_ESP32_HAL_I2C(const u8g2_cb_t *rotation, uint8_t clock, uint8_t data, uint8_t reset = U8X8_PIN_NONE, uint8_t i2c_port = U8X8_PIN_NONE) : U8G2() {
u8g2_esp32_hal_t esp_hal = U8G2_ESP32_HAL_DEFAULT;
esp_hal.sda = (gpio_num_t) data;
esp_hal.scl = (gpio_num_t) clock;
if (reset != U8X8_PIN_NONE)
esp_hal.reset = (gpio_num_t) reset;
if (i2c_port != U8X8_PIN_NONE)
esp_hal.master_num = (i2c_port_t) i2c_port;
u8g2_esp32_hal_init((u8x8_t *)(&u8g2), esp_hal);
u8g2_Setup_ssd1306_i2c_128x32_univision_f(&u8g2, rotation, u8g2_esp32_i2c_byte_cb, u8g2_esp32_gpio_and_delay_cb);
}
public: ~U8G2_CUSTOM_SSD1306_128X32_UNIVISION_F_ESP32_HAL_I2C() {
u8g2_esp32_hal_free((u8x8_t *)(&u8g2));
}
};
U8G2_CUSTOM_SSD1306_128X32_UNIVISION_F_ESP32_HAL_I2C u8g2_d1(U8G2_R0, DISP1_PINS, U8X8_PIN_NONE, 0);
U8G2_CUSTOM_SSD1306_128X32_UNIVISION_F_ESP32_HAL_I2C u8g2_d2(U8G2_R0, DISP2_PINS, U8X8_PIN_NONE, 1);
#else
U8G2_SSD1306_128X32_UNIVISION_F_SW_I2C u8g2_d1(U8G2_R0, DISP1_PINS, U8X8_PIN_NONE);
U8G2_SSD1306_128X32_UNIVISION_F_SW_I2C u8g2_d2(U8G2_R0, DISP2_PINS, U8X8_PIN_NONE);
#endif
u8g2_uint_t f1x1h = 8;
u8g2_uint_t f2x2h = 16;
u8g2_uint_t f4x4h = 32;
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char tempLine0Format[] = GLYPH_AMD "%2d" GLYPH_DEGC " "
GLYPH_VR_MOS "%2d" GLYPH_DEGC " "
GLYPH_GPU "%2d" GLYPH_DEGC " "
GLYPH_CHIPSET "%2d" GLYPH_DEGC " "
GLYPH_MOBO "%2d" GLYPH_DEGC " "
GLYPH_SSD "%2d" GLYPH_DEGC " ";
char tempLine1Format[] = GLYPH_AMD " %s" GLYPH_HZ " "
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GLYPH_LOAD " %2d.%02d %4d%%";
char fansLine0Format[] = GLYPH_AIO "%4d" GLYPH_RPM " "
GLYPH_GPU "%4d" GLYPH_RPM " "
GLYPH_CHIPSET "%4d" GLYPH_RPM " "
GLYPH_FAN_TOP "%4d" GLYPH_RPM " "
GLYPH_FAN_BOTTOM "%4d" " "
GLYPH_FAN_BACK "%4d" GLYPH_RPM " ";
char fansLine1Format[] = GLYPH_RAM " %2d%% %s %4dM" GLYPH_HZ;
char waiting_string[] = " Waiting for data from the computer... ";
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u8g2_uint_t waiting_width;
u8g2_uint_t waiting_offset = 0;
u8g2_uint_t waiting_offset1;
u8g2_uint_t temp_page_offset = 0;
u8g2_uint_t fans_page_offset = 0;
struct line_buffers {
char line0[300];
char line1[30];
char line2[30];
};
// Two buffers to swap around and avoid blocking rendering
struct line_buffers tempLines_1 = {0};
struct line_buffers tempLines_2 = {0};
struct line_buffers fansLines_1 = {0};
struct line_buffers fansLines_2 = {0};
struct line_buffers *tempLines = &tempLines_1;
struct line_buffers *tempLines_next = &tempLines_2;
struct line_buffers *fansLines = &fansLines_1;
struct line_buffers *fansLines_next = &fansLines_2;
SemaphoreHandle_t stringsMutex;
stats_t stats;
byte bytes_read = 0;
bool stats_ever_received = false;
unsigned long data_expiration = 0;
bool lid = 0;
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bool receiveStats() {
size_t to_read = sizeof(stats_t) - bytes_read;
if (Serial.available() < 4) return false;
if (bytes_read == 0 && !Serial.find(MAGIC_START_ASSTR, 4)) {
return false;
} else if (bytes_read == 0) {
// Put back magic since Serial.find() strips it out
stats.magic_start = MAGIC_START;
bytes_read = 4;
// It also says it read them even though it doesn't place them in the buffer
to_read += 4;
}
D Serial.println(F("Magic found, accepting data"));
byte *buffer = (byte *) &stats;
bytes_read += Serial.readBytes(buffer + bytes_read, to_read);
D Serial.print(F("Read "));
D Serial.print(bytes_read);
D Serial.println(F(" bytes from serial"));
if (bytes_read >= sizeof(stats_t)) {
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#ifdef DEBUG
char printbuf[100];
sprintf(printbuf, "Received %d bytes, wanted %d == sizeof(stats_t)", bytes_read, sizeof(stats_t));
Serial.println(printbuf);
Serial.print(F("buffer: "));
for (byte *ptr = buffer; ptr < buffer + sizeof(stats_t); ptr++) {
sprintf(printbuf, "%02x ", *ptr);
Serial.print(printbuf);
}
Serial.println();
Serial.println(F("Check magic start"));
#endif
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if (stats.magic_start != MAGIC_START) goto invalidate;
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D Serial.println(F("Check magic end"));
D Serial.println(stats.magic_end, HEX);
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if (stats.magic_end != MAGIC_END) goto invalidate;
uint8_t checkxor = 0;
for (byte *b = (byte *) &stats; b < &(stats.checkxor); b++) {
checkxor ^= *b;
}
#ifdef DEBUG
Serial.println(F("Checking check xor"));
Serial.print(F("Computed: "));
Serial.print(checkxor, HEX);
Serial.print(F(" at offset "));
Serial.println((uint32_t) ((uint32_t) &(stats.checkxor) - ((uint32_t) &stats)));
Serial.print(F("Got: "));
Serial.println(stats.checkxor, HEX);
#endif
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if (stats.checkxor != checkxor) goto invalidate;
D Serial.println(F("Checks passed, data accepted"));
bytes_read = 0;
return true;
} else {
return false;
}
invalidate:
D Serial.println(F("Invalid data, ignoring"));
bytes_read = 0;
return false;
}
void drawWaitingForData(U8G2 *u8g2, u8g2_uint_t *offset) {
u8g2->clearBuffer();
u8g2_uint_t x = *offset;
do {
u8g2->setCursor(x, 32);
u8g2->setFont(stats_font4x4);
u8g2->print(GLYPH_UNPLUGGED);
u8g2->setCursor(x + 32, 26);
u8g2->setFont(u8g2_font_helvR18_tf);
u8g2->print(waiting_string);
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x += waiting_width;
} while( x < u8g2->getDisplayWidth() );
yield();
u8g2->sendBuffer();
(*offset) -= SCROLL_SPEED;
if ( (u8g2_uint_t)(*offset) < (u8g2_uint_t)-waiting_width )
(*offset) = 0;
}
void drawWaitingForDataAllDisplays() {
drawWaitingForData(&u8g2_d1, &waiting_offset);
drawWaitingForData(&u8g2_d2, &waiting_offset1);
}
void format_freq(char *dest, uint16_t value) {
if (value < 1000) {
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sprintf(dest, "%4dM", value);
} else {
sprintf(dest, "%1d.%03dG", value / 1000, value % 1000);
}
}
void format_bar(
char *buffer, uint8_t total_tiles, uint16_t full_perc, uint16_t gray_perc, uint16_t perc_max) {
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memset(buffer, 0, total_tiles + 1);
int32_t gray_tiles = (int32_t) ((double) (gray_perc+1) / (double) perc_max * total_tiles);
int32_t full_tiles = (int32_t) ((double) (full_perc+1) / (double) perc_max * total_tiles);
int32_t empty_tiles = total_tiles - 2 - gray_tiles - max(full_tiles - 1, 0);
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// Pick left butt tile
if (full_tiles == 1 && gray_tiles == 0)
strcat(buffer, GLYPH_BUTT_LEFT_FULL_END);
else if (full_tiles == 0 && gray_tiles == 1)
strcat(buffer, GLYPH_BUTT_LEFT_GRAY_END);
else if (full_tiles > 0)
strcat(buffer, GLYPH_BUTT_LEFT_FULL);
else if (gray_tiles > 0)
strcat(buffer, GLYPH_BUTT_LEFT_GRAY);
else
strcat(buffer, GLYPH_BUTT_LEFT_EMPTY);
// Draw full tiles
for (char i = 0; i < full_tiles - 2; i++)
strcat(buffer, GLYPH_MID_FULL);
if (full_tiles > 1 && full_tiles < total_tiles && gray_tiles == 0)
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strcat(buffer, GLYPH_MID_FULL_END);
else if (full_tiles > 0 && gray_tiles > 0)
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strcat(buffer, GLYPH_MID_FULL);
// Draw gray tiles
for (char i = 0; i < gray_tiles - 1 - (full_tiles > 0 ? 0 : 1); i++)
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strcat(buffer, GLYPH_MID_GRAY);
if (gray_tiles > 0 && (full_tiles + gray_tiles) < total_tiles)
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strcat(buffer, GLYPH_MID_GRAY_END);
// Draw empty tiles
for (char i = 0; i < empty_tiles; i++)
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strcat(buffer, GLYPH_MID_EMPTY);
// Pick right butt tile
if (full_tiles == total_tiles)
strcat(buffer, GLYPH_BUTT_RIGHT_FULL);
else if ((full_tiles + gray_tiles) == total_tiles)
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strcat(buffer, GLYPH_BUTT_RIGHT_GRAY);
else
strcat(buffer, GLYPH_BUTT_RIGHT_EMPTY);
}
void format_size(char *buffer, uint32_t megabytes) {
if (megabytes < 2000) {
sprintf(buffer, "%4dMB", megabytes);
} else {
sprintf(buffer, "%4.2fGB", (float) megabytes / 1024);
}
}
void drawStatsPage(
U8G2 *u8g2, struct line_buffers *lines, char *minibanner,
u8g2_uint_t mb_w, u8g2_uint_t mb_h, u8g2_uint_t *offset) {
u8g2->setFont(stats_font2x2);
u8g2_uint_t line0_width = u8g2->getStrWidth(lines->line0);
u8g2->clearBuffer();
// Line 0
u8g2_uint_t x = *offset;
u8g2->setFont(stats_font2x2);
do {
u8g2->drawStr(x, f2x2h, lines->line0);
x += line0_width;
} while( x < u8g2->getDisplayWidth() );
// Minibanner
if (data_expiration > millis()) {
u8g2->setDrawColor(0);
u8g2->drawBox(0, 0, mb_w, mb_h);
u8g2->setDrawColor(1);
u8g2->drawStr(0, f2x2h, minibanner);
}
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// Line 1
u8g2->setFont(stats_font1x1);
u8g2->drawStr(0, f2x2h + f1x1h + 1, lines->line1);
// Line 2
u8g2->drawStr(0, f2x2h + 2*f1x1h, lines->line2);
// No data maxibanner
if (data_expiration <= millis()) {
u8g2->setFont(stats_font4x4);
u8g2->setDrawColor(0);
u8g2->drawBox(0, 0, 36, 32);
u8g2->setDrawColor(1);
u8g2->drawStr(0, f4x4h, GLYPH_UNPLUGGED);
}
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yield();
u8g2->sendBuffer();
(*offset) -= SCROLL_SPEED;
if ( (u8g2_uint_t) (*offset) < (u8g2_uint_t) -line0_width )
(*offset) = 0;
}
void sprintfStrings() {
uint8_t total_8x8_tiles = u8g2_d1.getDisplayWidth() / 8;
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char tmp_buf[20] = {0};
// Temps page
sprintf(tempLines_next->line0, tempLine0Format,
stats.cpu_temp,
stats.vr_mos_temp,
stats.gpu_temp,
stats.chipset_temp,
stats.system_temp,
stats.ssd_temp);
format_freq(tmp_buf, stats.cpu_freq);
sprintf(tempLines_next->line1, tempLine1Format,
tmp_buf, stats.cpu_load_avg / 100, stats.cpu_load_avg % 100, stats.cpu_perc
);
format_bar(
tempLines_next->line2, total_8x8_tiles,
stats.cpu_perc - stats.cpu_perc_kernel, stats.cpu_perc_kernel, stats.cpu_perc_max);
// Fans page
sprintf(fansLines_next->line0, fansLine0Format,
stats.pump,
stats.gpu_fan,
stats.chipset_fan,
stats.top_fan,
stats.bottom_fan,
stats.back_fan);
format_size(tmp_buf, stats.ram_used);
sprintf(fansLines_next->line1, fansLine1Format, stats.ram_perc, tmp_buf, 3200);
format_bar(
fansLines_next->line2, total_8x8_tiles, stats.ram_perc, stats.ram_perc_buffers, 100);
struct line_buffers *temp_ptr = tempLines;
struct line_buffers *fans_ptr = fansLines;
xSemaphoreTake(stringsMutex, portMAX_DELAY);
tempLines = tempLines_next;
fansLines = fansLines_next;
xSemaphoreGive(stringsMutex);
tempLines_next = temp_ptr;
fansLines_next = fans_ptr;
}
void displaysTask(void *pvParameters) {
Serial.print("Handling displays on core ");
Serial.println(xPortGetCoreID());
while (true) {
bool newLid = digitalRead(LID_PIN);
if (newLid != lid) {
lid = newLid;
u8g2_d1.setPowerSave(!lid);
u8g2_d2.setPowerSave(!lid);
Serial.print(F("LID "));
Serial.println(lid ? F("OPEN") : F("CLOSED"));
}
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if (!stats_ever_received) {
drawWaitingForDataAllDisplays();
yield();
continue;
}
xSemaphoreTake(stringsMutex, portMAX_DELAY);
struct line_buffers *templines_ptr = tempLines;
struct line_buffers *fanslines_ptr = fansLines;
xSemaphoreGive(stringsMutex);
drawStatsPage(&u8g2_d1, templines_ptr, GLYPH_TEMP, 10, 32, &temp_page_offset);
drawStatsPage(&u8g2_d2, fanslines_ptr, GLYPH_FAN, 16, 32, &fans_page_offset);
yield();
}
}
void receiverTask(void *pvParameters) {
D Serial.print("Handling incoming data on core ");
D Serial.println(xPortGetCoreID());
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while (true) {
yield();
if (receiveStats()) {
sprintfStrings();
data_expiration = millis() + NO_DATA_TIMEOUT;
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stats_ever_received = true;
}
delay(10);
}
}
void setup() {
// Fuck this shit and fuck your "wifi" and "important stuff"
disableCore0WDT();
Serial.begin(115200);
Serial.setTimeout(0);
// Report initial lid state
pinMode(LID_PIN, INPUT_PULLUP);
lid = digitalRead(LID_PIN);
Serial.print(F("LID "));
Serial.println(lid ? F("OPEN") : F("CLOSED"));
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stringsMutex = xSemaphoreCreateMutex();
#ifdef USE_ESP32_I2C_HAL
u8g2_d1.setI2CAddress(0x78);
u8g2_d2.setI2CAddress(0x78);
#endif
u8g2_d1.begin();
u8g2_d1.setPowerSave(0);
u8g2_d1.setFontMode(0);
u8g2_d1.setAutoPageClear(0);
u8g2_d1.setFont(u8g2_font_helvR18_tf);
waiting_width = u8g2_d1.getStrWidth(waiting_string);
u8g2_d1.setFont(stats_font4x4);
waiting_width += u8g2_d1.getStrWidth(GLYPH_UNPLUGGED);
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waiting_offset = 0;
u8g2_d2.begin();
u8g2_d2.setPowerSave(0);
u8g2_d2.setFontMode(0);
u8g2_d2.setAutoPageClear(0);
u8g2_d2.setFont(u8g2_font_helvR18_tf);
waiting_offset1 = (u8g2_uint_t) -u8g2_d2.getDisplayWidth();
delay(500);
xTaskCreatePinnedToCore(displaysTask, "DisplaysTask", 10000, NULL, 4, NULL, 0);
xTaskCreatePinnedToCore(receiverTask, "ReceiverTask", 10000, NULL, 4, NULL, 1);
}
void loop() {
// Avoid task watchdog firing
vTaskDelete(NULL);
}