Initial import of NFC GNSS SDK project

2026-09-15 16:10:12 +08:00
commit 2746cc3d4e
3070 changed files with 892062 additions and 0 deletions
@@ -0,0 +1,3 @@
+MODULE = crc32_syscall
+
+include $(RIOTBASE)/Makefile.base
@@ -0,0 +1,48 @@
+#include <stdio.h>
+#include "cpu.h"
+#include "crc32.h"
+#include "syscall-arom.h"
+
+/* Set bit 0 to 1 for thumb code */
+#define AROM_FUNC_ADDRESS(X) ((void *)((X) + 1))
+
+static void *
+crc32_get_handler(void)
+{
+  void *crc32_handler;
+  unsigned int chipid = hw_chip_id();
+
+  switch(chipid) {
+  case CHIP_ID_CRANEG:
+  case CHIP_ID_CRANEM:
+    /* 3603/1603, Bootrom release version: 2020.07.30 */
+    crc32_handler = AROM_FUNC_ADDRESS(0xd1005fcc);
+    break;
+  case CHIP_ID_CRANEL:
+    /* 1606, Bootrom release version: 2021.10.16 */
+    crc32_handler = AROM_FUNC_ADDRESS(0xd1f02f18);
+    break;
+  case CHIP_ID_CRANELR:
+    /* 1602, Bootrom release version: 2022.11.11 */
+    crc32_handler = AROM_FUNC_ADDRESS(0xd1f0358c);
+    break;
+  case CHIP_ID_CRANELS:
+    /* 1609, Bootrom release version: 2022.12.15 */
+    crc32_handler = AROM_FUNC_ADDRESS(0xd1f035c0);
+    break;
+  default:
+    /*
+     * Since Bootrom release version 2023.09.12(Fulmar Z1) the crc32 syscall
+     * is supported.
+     */
+    crc32_handler = syscall_get_handler(SYSCALL_106_CRC32);
+  }
+
+  return crc32_handler;
+}
+
+unsigned int
+crc32(unsigned int val, const void *ss, int len)
+{
+  return  ((typeof(crc32) *)crc32_get_handler())(val, ss, len);
+}