diff --git a/README.md b/README.md
index 5ae1ef2..8c5b3e0 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ sudo ./configure && sudo make && sudo make check && sudo make install
- python3
- python3-pip
- gpiod
+ - i2c-tools
- libgpiod-dev
- libpng-dev
- libncurses-dev
@@ -39,6 +40,13 @@ sudo ./configure && sudo make && sudo make check && sudo make install
Executable will be in the "c" directory
If moving to an alternate directory, ensure the c/libs/libgo_p2fa.so is copied.
+To enable the i2c device, add the following to the bottom of /boot/firmware/config.txt
+```text
+dtoverlay=i2c-rtc,ds3231
+```
+Reference [this walk through](https://pimylifeup.com/raspberry-pi-rtc/) for more info
+
+### Configuration
To add a config, create a text file in the ~/.totp directory (if it doesn't exist then create it). The name of the file will be what is populated on the device.
Ex: "google.txt" will be displayed as "google"
File Format:
diff --git a/c/libs/Config/Debug.h b/c/libs/Config/Debug.h
index 8dcdeec..05e7198 100644
--- a/c/libs/Config/Debug.h
+++ b/c/libs/Config/Debug.h
@@ -35,20 +35,11 @@
#ifndef __DEBUG_H
#define __DEBUG_H
-#include
#if DEBUG
-#define Debug(__info, ...) do { \
- mvprintw(30, 0, "Debug:" __info, ##__VA_ARGS__); \
- refresh(); \
-} while (0)
-#define DebugLine(y, x, __info, ...) do { \
- mvprintw((y), (x), "Debug: " __info, ##__VA_ARGS__); \
- refresh(); \
-} while (0)
+#define Debug(__info, ...) printf("Debug:" __info, ##__VA_ARGS__)
#else
#define Debug(__info, ...)
-#define DebugLine(y, x, __info, ...)
#endif
#endif
\ No newline at end of file
diff --git a/c/src/images.c b/c/src/images.c
deleted file mode 100644
index 16a331c..0000000
--- a/c/src/images.c
+++ /dev/null
@@ -1,258 +0,0 @@
-//
-// Created by steven on 11/19/2024.
-//
-
-#include "images.h"
-
-const unsigned char gImage_2in13_2[4006] = { /*0X00,0X01,0X7A,0X00,0XFA,0X00,*/
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-};
\ No newline at end of file
diff --git a/c/src/images.h b/c/src/images.h
deleted file mode 100644
index c064df8..0000000
--- a/c/src/images.h
+++ /dev/null
@@ -1,10 +0,0 @@
-//
-// Created by steven on 11/19/2024.
-//
-
-#ifndef IMAGES_H
-#define IMAGES_H
-
-extern const unsigned char gImage_2in13_2[];
-
-#endif //IMAGES_H
diff --git a/c/src/p2fa.c b/c/src/p2fa.c
index e1dc462..a0e4652 100644
--- a/c/src/p2fa.c
+++ b/c/src/p2fa.c
@@ -5,7 +5,8 @@
#include
#include
#include
-#include
+#include
+#include
#include "../libs/go_p2fa.h"
#include "../libs/e-Paper/EPD_2in13_V4.h"
@@ -13,39 +14,114 @@
#include "../libs/GUI/GUI_BMPfile.h"
#include "../libs/Config/Debug.h"
+#define GPIO_CHIP "/dev/gpiochip0"
+#define DEBOUNCE_TIME_MS 50
+
+// GPIO Pins
+#define BUTTON_UP 13
+#define BUTTON_DOWN 19
+#define BUTTON_LEFT 12
+#define BUTTON_RIGHT 16
+#define BUTTON_SELECT 27
+#define BUTTON_ALT 22
+#define BUTTON_BACK 6
+#define BUTTON_POWER 20
+
+typedef struct {
+ int gpio_pin;
+ int key_code;
+} ButtonMap;
+
+ButtonMap button_map[] = {
+ {BUTTON_UP, 'u'},
+ {BUTTON_DOWN, 'd'},
+ {BUTTON_LEFT, 'l'},
+ {BUTTON_RIGHT, 'r'},
+ {BUTTON_SELECT, 's'},
+ {BUTTON_ALT, 'a'},
+ {BUTTON_BACK, 'b'},
+ {BUTTON_POWER, 'p'},
+};
+
+#define NUM_BUTTONS 8
+
+struct gpiod_chip *chip;
+struct gpiod_line_bulk lines;
+struct gpiod_line *line_pointers[NUM_BUTTONS];
+
+int last_button_state[NUM_BUTTONS] = {0};
+struct timespec last_press_time[NUM_BUTTONS];
+
void closeP2FA() {
EPD_2in13_V4_Init();
EPD_2in13_V4_Clear();
-
EPD_2in13_V4_Sleep();
-
- DEV_Delay_ms(2000);//important, at least 2s
-
+ DEV_Delay_ms(2000); // Important, at least 2s
DEV_Module_Exit();
+
+ for (int i = 0; i < NUM_BUTTONS; i++) {
+ gpiod_line_release(line_pointers[i]);
+ }
+ gpiod_chip_close(chip);
}
void Handler(int sigNum) {
- DebugLine(28, 0, "Caught signal %d\n", sigNum);
-
+ Debug("Caught signal %d\n", sigNum);
closeP2FA();
- endwin();
-
exit(0);
}
int computeWidth(char* text, sFONT *font) {
- return (font->Width) * strlen(text);
+ return font->Width * strlen(text);
+}
+
+int readButtons() {
+ for (int i = 0; i < NUM_BUTTONS; i++) {
+ int value = gpiod_line_get_value(line_pointers[i]);
+ if (value < 0) {
+ perror("Failed to read GPIO value");
+ continue;
+ }
+
+ // Debounce logic
+ struct timespec now;
+ clock_gettime(CLOCK_MONOTONIC, &now);
+ long elapsed_ms = (now.tv_sec - last_press_time[i].tv_sec) * 1000 +
+ (now.tv_nsec - last_press_time[i].tv_nsec) / 1000000;
+
+ if (value == 1 && last_button_state[i] == 0 && elapsed_ms > DEBOUNCE_TIME_MS) {
+ last_button_state[i] = 1;
+ last_press_time[i] = now;
+ return button_map[i].key_code;
+ }
+ if (value == 0) {
+ last_button_state[i] = 0;
+ }
+ }
+
+ return -1; // No button press detected
+}
+
+int getBtn() {
+ while (1) {
+ int key = readButtons();
+ if (key != -1) {
+ return key;
+ }
+ // Add a short delay to reduce CPU usage
+ DEV_Delay_ms(10);
+ }
}
//TODO Put display to sleep after so many refreshes
void code(UWORD *blackImage, char* confName) {
- int ch;
+ //int ch;
while(1) {
- ch = getch();
- if (ch != ERR) {
- if (ch == 'q') break;
- DebugLine(2, 0, "Key Pressed: %c\n", ch);
- }
+ // ch = getch();
+ // if (ch != ERR) {
+ // if (ch == 'q') break;
+ // Debug("Key Pressed: %c\n", ch);
+ // }
Paint_NewImage(blackImage, EPD_2in13_V4_WIDTH, EPD_2in13_V4_HEIGHT, 90, WHITE);
EPD_2in13_V4_Init();
@@ -77,10 +153,10 @@ void code(UWORD *blackImage, char* confName) {
int progBarEndIndex;
int lastI = 30 * 1000;
for (int i = getTimeRemainingMS(30);; i = getTimeRemainingMS(30)) {
- ch = getch();
- if (ch != ERR) {
- if (ch == 'q') return;
- }
+ //ch = getch();
+ //if (ch != ERR) {
+ // if (ch == 'q') return;
+ //}
if (i > lastI) break;
startTime = clock();
@@ -112,7 +188,7 @@ void config(UWORD *blackImage, char* configName) {
int length = configLinesReturn.r1;
char** configLines = configLinesReturn.r0;
if (configLines == NULL || length == -1) {
- DebugLine(10, 0, "Config not found\n");
+ Debug("Config not found\n");
return;
}
@@ -127,10 +203,7 @@ void config(UWORD *blackImage, char* configName) {
EPD_2in13_V4_Display(blackImage);
- int ch = getch();
- if (ch == 'q') {
- return;
- }
+ //int ch = getch();
}
void drawTotpHome(UWORD *blackImage, char** configNames, int *length) {
@@ -139,7 +212,7 @@ void drawTotpHome(UWORD *blackImage, char** configNames, int *length) {
Paint_Clear(WHITE);
for (int j = 0; j < *length; j++) {
if (configNames[j] == NULL) {
- DebugLine(13, 0, "Null Config: %d\n", j);
+ Debug("Null Config: %d\n", j);
}
Paint_DrawString(5, 5 + j * 20, configNames[j], &Font12, WHITE, BLACK);
}
@@ -154,7 +227,7 @@ void totpHome(UWORD *blackImage) {
char** configNames = configNamesReturn.r0;
if (configNames == NULL || length == 0) {
- DebugLine(10, 0, "No configs found\n");
+ Debug("No configs found\n");
return;
}
@@ -166,20 +239,19 @@ void totpHome(UWORD *blackImage) {
int ch;
while (1) {
- timeout(-1);
- ch = getch();
- if (ch != ERR) {
+ //timeout(-1);
+ ch = 'q'; //getch();
+ if (!ch) {
switch(ch) {
- case KEY_UP:
- if (i > 0) i--;
- Paint_ClearWindows(115, 5 + (i + 1) * 20, 122, 17 + (i + 1) * 20, WHITE);
- break;
- case KEY_DOWN:
- if (i < length - 1) i++;
- Paint_ClearWindows(115, 5 + (i - 1) * 20, 122, 17 + (i - 1) * 20, WHITE);
- break;
+ // case KEY_UP:
+ // if (i > 0) i--;
+ // Paint_ClearWindows(115, 5 + (i + 1) * 20, 122, 17 + (i + 1) * 20, WHITE);
+ // break;
+ // case KEY_DOWN:
+ // if (i < length - 1) i++;
+ // Paint_ClearWindows(115, 5 + (i - 1) * 20, 122, 17 + (i - 1) * 20, WHITE);
+ // break;
case '\n':
- timeout(0);
code(blackImage, configNames[i]);
drawTotpHome(blackImage, configNames, &length);
break;
@@ -212,7 +284,7 @@ int drawLoop() {
UBYTE *blackImage;
UWORD ImageSize = ((EPD_2in13_V4_WIDTH % 8 == 0) ? (EPD_2in13_V4_WIDTH / 8) : (EPD_2in13_V4_WIDTH / 8 + 1)) * EPD_2in13_V4_HEIGHT;
if ((blackImage = (UBYTE *) malloc(ImageSize)) == NULL) {
- DebugLine(8, 0, "Failed to apply for black memory...\n");
+ Debug("Failed to apply for black memory...\n");
return -1;
}
@@ -225,17 +297,36 @@ int main() {
signal(SIGINT, Handler);
signal(SIGTERM, Handler);
- initscr();
- cbreak();
- noecho();
- nodelay(stdscr, TRUE);
- keypad(stdscr, TRUE);
-
loadConfigs();
- drawLoop();
+ // Begin Init GPIO
+ chip = gpiod_chip_open(GPIO_CHIP);
+ if (!chip) {
+ printf("Failed to open GPIO chip\n");
+ exit(EXIT_FAILURE);
+ }
+ for (int i = 0; i < NUM_BUTTONS; i++) {
+ line_pointers[i] = gpiod_chip_get_line(chip, button_map[i].gpio_pin);
+ if (!line_pointers[i]) {
+ printf("Failed to get GPIO line\n");
+ exit(EXIT_FAILURE);
+ }
+ if (gpiod_line_request_input(line_pointers[i], "gpio_button") < 0) {
+ printf("Failed to request input for GPIO line\n");
+ gpiod_chip_close(chip);
+ exit(EXIT_FAILURE);
+ }
+ gpiod_line_bulk_init(&lines, NUM_BUTTONS, line_pointers);
+ }
+ // End Init GPIO
+
+ printf("Monitoring buttons. Press Ctrl+C to exit.\n");
+ while (1) {
+ printf("Button: %c\n", (char)getBtn());
+ }
+
+ //drawLoop();
closeP2FA();
- endwin();
return 0;
}
\ No newline at end of file