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Import of the watch repository from Pebble

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Matthieu Jeanson 2024-12-12 16:43:03 -08:00 • committed by Katharine Berry
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src/fw/apps/demo_apps/grenade_launcher.c Normal file
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/*
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "grenade_launcher.h"
#include "applib/app.h"
#include "applib/fonts/fonts.h"
#include "applib/ui/ui.h"
#include "applib/ui/window.h"
#include "applib/ui/window_private.h"
#include "drivers/flash.h"
#include "drivers/system_flash.h"
#include "flash_region/flash_region.h"
#include "kernel/pbl_malloc.h"
#include "process_state/app_state/app_state.h"
#include "services/common/system_task.h"
#include "services/runlevel.h"
#include "system/bootbits.h"
#include "system/firmware_storage.h"
#include "system/logging.h"
#include "system/passert.h"
#include "system/reset.h"
#include <stdio.h>
///////////
// Helpers
static void fw_update_reboot(void) {
PBL_LOG(LOG_LEVEL_DEBUG, "Rebooting to apply new firmware!");
boot_bit_set(BOOT_BIT_NEW_FW_AVAILABLE);
services_set_runlevel(RunLevel_BareMinimum);
system_reset();
}
static void erase_fw(const uint32_t start_address) {
// Erase flash
flash_erase_sector_blocking(start_address); // Set everything high
// Set up the firmware description
FirmwareDescription desc;
desc.description_length = sizeof(FirmwareDescription);
desc.firmware_length = (64 * 1024) - sizeof(FirmwareDescription);
desc.checksum = 0xdeadbeef;
// Write the firmware description
flash_write_bytes((uint8_t*)&desc, start_address, desc.description_length);
}
enum {
ERASE_NORMAL_FW = 1 << 0,
ERASE_RECOVERY_FW = 1 << 1,
ERASE_ALL = ERASE_NORMAL_FW | ERASE_RECOVERY_FW,
};
static void erase_callback(void *data) {
uintptr_t arg = (uintptr_t)data;
if (arg & ERASE_RECOVERY_FW) {
erase_fw(FLASH_REGION_SAFE_FIRMWARE_BEGIN);
}
if (arg & ERASE_NORMAL_FW) {
erase_fw(FLASH_REGION_FIRMWARE_SCRATCH_BEGIN);
system_flash_erase(FLASH_Sector_4);
system_flash_erase(FLASH_Sector_5);
system_flash_erase(FLASH_Sector_6);
system_flash_erase(FLASH_Sector_7);
}
fw_update_reboot();
}
static void crash(void *data) {
((void(*)(void))data)();
}
////////////////////
// UI Code
typedef struct {
Window window;
TextLayer text;
} AppData;
static void set_text(Window *window, char *message) {
AppData *data = window_get_user_data(window);
TextLayer *text = &data->text;
text_layer_set_text(text, message);
PBL_LOG(LOG_LEVEL_DEBUG, "%s", message);
}
static void up_click_handler(ClickRecognizerRef recognizer, Window *window) {
(void) recognizer;
set_text(window, "Erasing Normal+Sys firmware...");
system_task_add_callback(erase_callback, (void *)ERASE_NORMAL_FW);
}
#if 0
static void up_long_click_handler(ClickRecognizerRef recognizer, Window *window) {
(void) recognizer;
set_text(window, "Erasing All...");
system_task_add_callback(erase_callback, (void *)ERASE_ALL);
}
#endif
static void select_click_handler(ClickRecognizerRef recognizer, Window *window) {
(void) recognizer;
set_text(window, "Going down for reboot...");
system_task_add_callback(system_reset_callback, NULL);
}
static void down_click_handler(ClickRecognizerRef recognizer, Window *window) {
(void) recognizer;
set_text(window, "Erasing recovery firmware");
system_task_add_callback(erase_callback, (void *)ERASE_RECOVERY_FW);
}
static void back_click_handler(ClickRecognizerRef recognizer, Window *window) {
(void) recognizer;
set_text(window, "Boom!");
system_task_add_callback(crash, NULL);
}
static void config_provider(Window *window) {
window_single_click_subscribe(BUTTON_ID_UP, (ClickHandler) up_click_handler);
window_single_click_subscribe(BUTTON_ID_SELECT, (ClickHandler) select_click_handler);
window_single_click_subscribe(BUTTON_ID_DOWN, (ClickHandler) down_click_handler);
window_single_click_subscribe(BUTTON_ID_BACK, (ClickHandler) back_click_handler);
}
static void prv_window_load(Window *window) {
AppData *data = window_get_user_data(window);
TextLayer *text = &data->text;
text_layer_init(text, &window->layer.bounds);
text_layer_set_text(text, "UP: Erase Normal+Sys FW\nUP LONG:Erase Normal+Recov+Sys\nSEL: Reboot FW\nDOWN: Erase Recovery\nBACK: Crash");
text_layer_set_font(text, fonts_get_system_font(FONT_KEY_GOTHIC_14));
layer_add_child(&window->layer, &text->layer);
}
static void push_window(AppData *data) {
Window *window = &data->window;
window_init(window, WINDOW_NAME("Grenade Launcher"));
window_set_user_data(window, data);
window_set_overrides_back_button(window, true);
window_set_window_handlers(window, &(WindowHandlers) {
.load = prv_window_load,
});
window_set_click_config_provider(window, (ClickConfigProvider) config_provider);
window_set_fullscreen(window, true);
const bool animated = false;
app_window_stack_push(window, animated);
}
////////////////////
// App boilerplate
static void handle_init(void) {
AppData *data = app_malloc_check(sizeof(AppData));
app_state_set_user_data(data);
push_window(data);
}
static void handle_deinit(void) {
AppData *data = app_state_get_user_data();
app_free(data);
}
static void s_main(void) {
handle_init();
app_event_loop();
handle_deinit();
}
const PebbleProcessMd* grenade_launcher_app_get_info() {
static const PebbleProcessMdSystem s_app_info = {
.common.main_func = s_main,
.name = "Grenade Launcher"
};
return (const PebbleProcessMd*) &s_app_info;
}