From 25108684fe235d4296c3cbc480298df209682586 Mon Sep 17 00:00:00 2001
From: stefan <stefan@s00.xyz>
Date: Tue, 4 Apr 2023 06:01:50 +0000
Subject: build system and some other stuff

---
 sys/include/fdt.h                | 37 +++++++++++++++++++++++++++++++++++++
 sys/include/kernel_earlyprintf.h |  6 ++++++
 sys/include/mm/kalloc.h          | 11 +++++++++++
 sys/include/sbi.h                | 16 ++++++++++++++++
 4 files changed, 70 insertions(+)
 create mode 100644 sys/include/fdt.h
 create mode 100644 sys/include/kernel_earlyprintf.h
 create mode 100644 sys/include/mm/kalloc.h
 create mode 100644 sys/include/sbi.h

(limited to 'sys/include')

diff --git a/sys/include/fdt.h b/sys/include/fdt.h
new file mode 100644
index 0000000..92e5695
--- /dev/null
+++ b/sys/include/fdt.h
@@ -0,0 +1,37 @@
+#include <stdint.h>
+#include <endian.h>
+
+#ifndef _FDT_H
+#define _FDT_H
+
+#define FDT_HEADER_MAGIC        0xd00dfeed
+
+static inline uint32_t
+fdt_uint32(uint32_t x)
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+return __bswap32(x);
+#else
+return x;
+#endif
+}
+
+struct fdt_header {
+        uint32_t magic;                 /* FDT_HEADER_MAGIC */
+        uint32_t totalsize;             /* size of the whole device tree, in bytes */
+        uint32_t off_dt_struct;         /* offset to structure block */
+        uint32_t off_dt_strings;        /* offset to strings block */
+        uint32_t off_mem_rsvmap;        /* offset to memory reservation block */
+        uint32_t version;               /* dt spec version */
+        uint32_t last_comp_version;     /* last compatible version. spec says this needs to be 16 */
+        uint32_t boot_cpuid_phys;       /* physical id of the systems boot cpu */
+        uint32_t size_dt_strings;       /* size of strings block */
+        uint32_t size_dt_struct;        /* size of structure block */
+};
+
+struct fdt_reserve_entry {
+        uint64_t address;
+        uint64_t size;
+};
+
+#endif /* _FDT_H */
diff --git a/sys/include/kernel_earlyprintf.h b/sys/include/kernel_earlyprintf.h
new file mode 100644
index 0000000..051d7e5
--- /dev/null
+++ b/sys/include/kernel_earlyprintf.h
@@ -0,0 +1,6 @@
+#ifndef _KPRINTF_H
+#define _KPRINTF_H
+
+int kernel_earlyputs(const char *); 
+
+#endif /* _KPRINTF_H */
diff --git a/sys/include/mm/kalloc.h b/sys/include/mm/kalloc.h
new file mode 100644
index 0000000..e99d624
--- /dev/null
+++ b/sys/include/mm/kalloc.h
@@ -0,0 +1,11 @@
+#ifndef _KALLOC_H
+#define _KALLOC_H
+
+void *kalloc(void);
+
+void *kzalloc(void);
+
+void kfree(void *);
+
+#endif /* _KALLOC_H */
+
diff --git a/sys/include/sbi.h b/sys/include/sbi.h
new file mode 100644
index 0000000..0dbcd02
--- /dev/null
+++ b/sys/include/sbi.h
@@ -0,0 +1,16 @@
+#ifndef _SBICALL_H
+#define _SBICALL_H
+
+struct sbiret {
+        long err;
+        long val;
+};
+
+struct sbiret 	sbi_ecall(int _eid, int _fid, unsigned long _a0, unsigned long _a1, 
+               		unsigned long _a2, unsigned long _a3, unsigned long _a4, unsigned long _a5);
+
+void    sbi_console_putchar(int c);
+void    sbi_shutdown(void);
+
+#endif /* _SBICALL_H */
+
-- 
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