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- /*
- * lcd.c
- *
- * Copyright (c) 2024 Thomas Buck (thomas@xythobuz.de)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * See <http://www.gnu.org/licenses/>.
- */
-
- #include <stdio.h>
- #include <string.h>
-
- #include "hardware/i2c.h"
- #include "hardware/watchdog.h"
-
- #include "ssd1306.h"
- #include "git.h"
-
- #include "config.h"
- #include "buttons.h"
- #include "console.h"
- #include "main.h"
- #include "usb.h"
- #include "lcd.h"
-
- static i2c_inst_t *gpio_i2c_proto = i2c0;
- static const uint gpio_num_proto[2] = { 0, 1 };
-
- static i2c_inst_t *gpio_i2c_v2 = i2c0;
- static const uint gpio_num_v2[2] = { 16, 17 };
-
- #define LCD_ADDR 0x3C
-
- static ssd1306_t disp = {0};
- static bool buttons[NUM_BTNS] = {0};
- static bool changed = true;
- static bool found = false;
-
- static void lcd_debug_buttons_callback(enum buttons btn, bool v) {
- buttons[btn] = v;
- changed = true;
- }
-
- void lcd_debug_buttons(void) {
- if (!found) {
- return;
- }
-
- buttons_callback(lcd_debug_buttons_callback);
-
- while (1) {
- watchdog_update();
- buttons_run();
- usb_run();
- cnsl_run();
-
- if (changed) {
- changed = false;
-
- ssd1306_clear(&disp);
- ssd1306_draw_string(&disp, 0, 0, 3, "Buttons");
-
- for (uint i = 0; i < NUM_BTNS; i++) {
- if ((hw_type == HW_PROTOTYPE) && (i >= BTN_D) && (i <= BTN_H)) {
- continue;
- }
-
- ssd1306_draw_char(&disp,
- i * 12, LCD_HEIGHT - 20 - 16 - 1,
- 2, '0' + i);
-
- if (buttons[i]) {
- ssd1306_draw_square(&disp,
- i * 12, LCD_HEIGHT - 20 - 1,
- 10, 20);
- } else {
- ssd1306_draw_empty_square(&disp,
- i * 12, LCD_HEIGHT - 20 - 1,
- 10, 20);
- }
- }
-
- ssd1306_show(&disp);
- }
- }
- }
-
- void lcd_draw_bitmap(uint8_t *data, int width, int height, int x_off, int y_off) {
- if (!found) {
- return;
- }
-
- ssd1306_clear(&disp);
-
- for (int y = 0; y < height; y++) {
- for (int x = 0; x < width; x++) {
- const uint pos = y * width + x;
- const uint bit = 7 - (pos % 8);
- if (data[pos / 8] & (1 << bit)) {
- ssd1306_draw_pixel(&disp, x + x_off, y + y_off);
- }
- }
- }
-
- ssd1306_show(&disp);
- }
-
- void lcd_init(void) {
- if (hw_type == HW_PROTOTYPE) {
- i2c_init(gpio_i2c_proto, 2UL * 1000UL * 1000UL);
-
- for (uint i = 0; i < sizeof(gpio_num_proto) / sizeof(gpio_num_proto[0]); i++) {
- gpio_set_function(gpio_num_proto[i], GPIO_FUNC_I2C);
- gpio_pull_up(gpio_num_proto[i]);
- }
-
- bool r = ssd1306_init(&disp,
- LCD_WIDTH, LCD_HEIGHT,
- LCD_ADDR, gpio_i2c_proto);
- found = r;
- } else if (hw_type == HW_V2) {
- i2c_init(gpio_i2c_v2, 2UL * 1000UL * 1000UL);
-
- for (uint i = 0; i < sizeof(gpio_num_v2) / sizeof(gpio_num_v2[0]); i++) {
- gpio_set_function(gpio_num_v2[i], GPIO_FUNC_I2C);
- gpio_pull_up(gpio_num_v2[i]);
- }
-
- bool r = ssd1306_init(&disp,
- LCD_WIDTH, LCD_HEIGHT,
- LCD_ADDR, gpio_i2c_v2);
- found = r;
- }
- }
-
- void lcd_draw(const char *mode, const char *val, const char *bat) {
- if (!found) {
- return;
- }
-
- ssd1306_clear(&disp);
- ssd1306_draw_string(&disp, 0, 0, 2, mode);
- ssd1306_draw_string(&disp, 0, 20, 4, val);
- ssd1306_draw_string(&disp, 0, LCD_HEIGHT - 8, 1, bat);
- ssd1306_show(&disp);
- }
-
- void lcd_draw_bye(void) {
- if (!found) {
- return;
- }
-
- ssd1306_clear(&disp);
- ssd1306_draw_string(&disp, 6, 5, 3, " Boot-");
- ssd1306_draw_string(&disp, 8, LCD_HEIGHT / 2 + 5, 3, "loader");
- ssd1306_show(&disp);
- }
-
- void lcd_draw_version(void) {
- if (!found) {
- return;
- }
-
- ssd1306_clear(&disp);
-
- ssd1306_draw_string(&disp, 0, 0, 2,
- "LARS");
-
- ssd1306_draw_string(&disp, 0, FONT_HEIGHT * 2 + 1, 1,
- "Release: " VERSION_STR);
-
- ssd1306_draw_string(&disp, 0, FONT_HEIGHT * 2 + 1 + FONT_HEIGHT + 1, 1,
- __DATE__ " " __TIME__);
-
- if (git_IsPopulated()) {
- const char *hash = git_CommitSHA1();
- char short_hash[6 + 7 + 6 + 1] = {0};
- memcpy(short_hash, "Hash: ", 6);
- memcpy(short_hash + 6, hash, 7);
- if (git_AnyUncommittedChanges()) {
- memcpy(short_hash + 6 + 7, " dirty", 6);
- }
- ssd1306_draw_string(&disp, 0, FONT_HEIGHT * 2 + 1 + (FONT_HEIGHT + 1) * 2, 1,
- short_hash);
- } else {
- ssd1306_draw_string(&disp, 0, FONT_HEIGHT * 2 + 1 + (FONT_HEIGHT + 1) * 2, 1,
- "No Git Repo");
- }
-
- char hw_id_str[42] = {0};
- if (hw_type == HW_PROTOTYPE) {
- snprintf(hw_id_str, sizeof(hw_id_str) - 1,
- "HW Prototype");
- } else if (hw_type == HW_V2) {
- snprintf(hw_id_str, sizeof(hw_id_str) - 1,
- "HW V2");
- } else {
- snprintf(hw_id_str, sizeof(hw_id_str) - 1,
- "HW unknown %X", hw_type);
- }
- ssd1306_draw_string(&disp, 0, FONT_HEIGHT * 2 + 1 + (FONT_HEIGHT + 1) * 3, 1,
- hw_id_str);
-
- ssd1306_show(&disp);
- }
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