change battery voltage meause and battery low indication; update from latest chibios hal

1 files changed, 43 insertions, 0 deletions

diff --git a/keyboards/keychron/bluetooth/rtc_timer.h b/keyboards/keychron/bluetooth/rtc_timer.h
new file mode 100644
index 0000000000..aa73a31c8a
--- /dev/null
+++ b/keyboards/keychron/bluetooth/rtc_timer.h
@@ -0,0 +1,43 @@
+/* Copyright 2023 @ lokher (https://www.keychron.com)
+ *
+ * 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 2 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "timer.h"
+#include <stdint.h>
+
+#define RTC_MAX_TIME (24 * 3600 * 1000) // Set to 1 day
+
+#if 0
+#    define TIMER_DIFF(a, b, max) ((max == UINT8_MAX) ? ((uint8_t)((a) - (b))) : ((max == UINT16_MAX) ? ((uint16_t)((a) - (b))) : ((max == UINT32_MAX) ? ((uint32_t)((a) - (b))) : ((a) >= (b) ? (a) - (b) : (max) + 1 - (b) + (a)))))
+#    define TIMER_DIFF_8(a, b) TIMER_DIFF(a, b, UINT8_MAX)
+#    define TIMER_DIFF_16(a, b) TIMER_DIFF(a, b, UINT16_MAX)
+#    define TIMER_DIFF_32(a, b) TIMER_DIFF(a, b, UINT32_MAX)
+#    define TIMER_DIFF_RAW(a, b) TIMER_DIFF_8(a, b)
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void     rtc_timer_init(void);
+void     rtc_timer_clear(void);
+uint32_t rtc_timer_read_ms(void);
+uint32_t rtc_timer_elapsed_ms(uint32_t last);
+
+#ifdef __cplusplus
+}
+#endif