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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-// 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