Add slimmed down lcd firmware

Set temperature was dropped. It now shows only temperature from device.

2 files changed, 167 insertions, 0 deletions

diff --git a/control/Makefile b/control/Makefile
new file mode 100644
index 0000000..a86d630
--- /dev/null
+++ b/control/Makefile
@@ -0,0 +1,22 @@
+APP_DIR ?= .
+SDK_DIR ?= ../sdk
+VERSION ?= vdev
+
+CFLAGS += -D'VERSION="${VERSION}"'
+
+Q ?= @
+
+-include $(SDK_DIR)/Makefile.mk
+
+.PHONY: all
+all: debug
+
+.PHONY: sdk
+sdk: ../sdk/Makefile.mk
+
+.PHONY: update
+update: sdk
+	@echo "Updating Git submodule 'sdk'..."; git submodule update --remote --merge sdk
+
+../sdk/Makefile.mk:
+	$(Q) git submodule update --init ../sdk
diff --git a/control/application.c b/control/application.c
new file mode 100644
index 0000000..c14f5b1
--- /dev/null
+++ b/control/application.c
@@ -0,0 +1,145 @@
+#include <bcl.h>
+#include <bc_eeprom.h>
+#include <bc_spi.h>
+#include <bc_dice.h>
+
+#define SERVICE_INTERVAL_INTERVAL (60 * 60 * 1000)
+#define BATTERY_UPDATE_INTERVAL (60 * 60 * 1000)
+
+#define TEMPERATURE_TAG_PUB_NO_CHANGE_INTEVAL (15 * 60 * 1000)
+#define TEMPERATURE_TAG_PUB_VALUE_CHANGE 0.2f
+#define TEMPERATURE_UPDATE_SERVICE_INTERVAL (5 * 1000)
+#define TEMPERATURE_UPDATE_NORMAL_INTERVAL (10 * 1000)
+
+#define APPLICATION_TASK_ID 0
+
+#define COLOR_BLACK true
+
+
+typedef struct {
+	uint8_t number;
+	float value;
+	bc_tick_t next_pub;
+} event_param_t;
+
+bc_led_t led;
+bc_led_t led_lcd_red;
+bc_led_t led_lcd_blue;
+
+// Thermometer instance
+bc_tmp112_t tmp112;
+event_param_t temperature_event_param = { .next_pub = 0, .value = NAN };
+float temperature_on_display = NAN;
+
+void tmp112_event_handler(bc_tmp112_t *self, bc_tmp112_event_t event, void *event_param) {
+	float value;
+	event_param_t *param = (event_param_t *)event_param;
+
+	if (event != BC_TMP112_EVENT_UPDATE)
+		return;
+
+	if (bc_tmp112_get_temperature_celsius(self, &value)) {
+		if ((fabsf(value - param->value) >= TEMPERATURE_TAG_PUB_VALUE_CHANGE) || (param->next_pub < bc_scheduler_get_spin_tick())) {
+			bc_radio_pub_temperature(BC_RADIO_PUB_CHANNEL_R1_I2C0_ADDRESS_ALTERNATE, &value);
+			param->value = value;
+			param->next_pub = bc_scheduler_get_spin_tick() + TEMPERATURE_TAG_PUB_NO_CHANGE_INTEVAL;
+		}
+	} else
+		param->value = NAN;
+
+	if ((fabsf(param->value - temperature_on_display) >= 0.1) || isnan(temperature_on_display))
+		bc_scheduler_plan_now(APPLICATION_TASK_ID);
+}
+
+void on_lcd_button_click(void) {
+}
+
+void lcd_button_left_event_handler(bc_button_t *self, bc_button_event_t event, void *event_param) {
+	if (event != BC_BUTTON_EVENT_CLICK)
+		return;
+	bc_led_pulse(&led_lcd_blue, 30);
+	on_lcd_button_click();
+}
+
+void lcd_button_right_event_handler(bc_button_t *self, bc_button_event_t event, void *event_param) {
+	if (event != BC_BUTTON_EVENT_CLICK)
+		return;
+	bc_led_pulse(&led_lcd_red, 30);
+	on_lcd_button_click();
+}
+
+void battery_event_handler(bc_module_battery_event_t event, void *event_param) {
+	if (event != BC_MODULE_BATTERY_EVENT_UPDATE)
+		return;
+	float voltage;
+	 if (bc_module_battery_get_voltage(&voltage))
+		bc_radio_pub_battery(&voltage);
+}
+
+void switch_to_normal_mode_task(void *param) {
+	bc_tmp112_set_update_interval(&tmp112, TEMPERATURE_UPDATE_NORMAL_INTERVAL);
+	bc_scheduler_unregister(bc_scheduler_get_current_task_id());
+}
+
+void application_init(void) {
+	// Initialize LED on core module
+	bc_led_init(&led, BC_GPIO_LED, false, false);
+	bc_led_set_mode(&led, BC_LED_MODE_OFF);
+
+	// Initialize Radio
+	bc_radio_init(BC_RADIO_MODE_NODE_SLEEPING);
+
+	// Initialize battery
+	bc_module_battery_init();
+	bc_module_battery_set_event_handler(battery_event_handler, NULL);
+	bc_module_battery_set_update_interval(BATTERY_UPDATE_INTERVAL);
+
+	// Initialize thermometer sensor on core module
+	bc_tmp112_init(&tmp112, BC_I2C_I2C0, 0x49);
+	bc_tmp112_set_event_handler(&tmp112, tmp112_event_handler, &temperature_event_param);
+	bc_tmp112_set_update_interval(&tmp112, TEMPERATURE_UPDATE_SERVICE_INTERVAL);
+
+	// Initialize LCD
+	bc_module_lcd_init();
+
+	// Initialize LCD button left
+	static bc_button_t lcd_left;
+	bc_button_init_virtual(&lcd_left, BC_MODULE_LCD_BUTTON_LEFT, bc_module_lcd_get_button_driver(), false);
+	bc_button_set_event_handler(&lcd_left, lcd_button_left_event_handler, NULL);
+
+	// Initialize LCD button right
+	static bc_button_t lcd_right;
+	bc_button_init_virtual(&lcd_right, BC_MODULE_LCD_BUTTON_RIGHT, bc_module_lcd_get_button_driver(), false);
+	bc_button_set_event_handler(&lcd_right, lcd_button_right_event_handler, NULL);
+
+	// Initialize red and blue LED on LCD module
+	bc_led_init_virtual(&led_lcd_red, BC_MODULE_LCD_LED_RED, bc_module_lcd_get_led_driver(), true);
+	bc_led_init_virtual(&led_lcd_blue, BC_MODULE_LCD_LED_BLUE, bc_module_lcd_get_led_driver(), true);
+
+	bc_radio_pairing_request("lcd-thermostat", VERSION);
+
+	bc_scheduler_register(switch_to_normal_mode_task, NULL, SERVICE_INTERVAL_INTERVAL);
+
+	bc_led_pulse(&led, 2000);
+}
+
+void application_task(void) {
+	static char str_temperature[10];
+	if (!bc_module_lcd_is_ready())
+		return;
+
+	bc_system_pll_enable();
+	bc_module_lcd_clear();
+
+	bc_module_lcd_set_font(&bc_font_ubuntu_33);
+	snprintf(str_temperature, sizeof(str_temperature), "%.1f   ", temperature_event_param.value);
+	int x = bc_module_lcd_draw_string(20, 20, str_temperature, COLOR_BLACK);
+	temperature_on_display = temperature_event_param.value;
+
+	bc_module_lcd_set_font(&bc_font_ubuntu_24);
+	bc_module_lcd_draw_string(x - 20, 25, "\xb0" "C   ", COLOR_BLACK);
+
+	bc_module_lcd_update();
+
+	bc_system_pll_disable();
+}