Add Core1 refresh recovery and shared SPI arbitration

2026-02-18 15:43:35 -05:00
parent ebc58d7e4d
commit 3e54466752
5 changed files with 188 additions and 32 deletions
--- a/lib/shared_spi_bus.h
+++ b/lib/shared_spi_bus.h
@@ -0,0 +1,18 @@
+#ifndef SHARED_SPI_BUS_H
+#define SHARED_SPI_BUS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Cross-core SPI bus lock for shared SD/display SPI usage.
+void shared_spi_bus_init(void);
+void shared_spi_bus_lock(void);
+void shared_spi_bus_unlock(void);
+void shared_spi_bus_force_recover(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SHARED_SPI_BUS_H