From 23a690b50602fbbccb9c203ba103a076f771ad0a Mon Sep 17 00:00:00 2001
From: "Justin C. Miller" <justin@devjustinian.com>
Date: Tue, 25 Feb 2020 22:24:18 -0800
Subject: [PATCH] Add file and file_info protocols

---
 include/uefi/boot_services.h |   4 +-
 include/uefi/types.h         |  65 +++++++++++++++++++-
 protos.yaml                  | 112 +++++++++++++++++++++++++++++++++++
 3 files changed, 178 insertions(+), 3 deletions(-)

diff --git a/include/uefi/boot_services.h b/include/uefi/boot_services.h
index 3cbaffe..7b98c02 100644
--- a/include/uefi/boot_services.h
+++ b/include/uefi/boot_services.h
@@ -13,9 +13,9 @@
 
 namespace uefi {
 namespace bs_impl {
-	using allocate_pages = status (*)(allocate_type, memory_type, uint64_t, uintptr_t*);
+	using allocate_pages = status (*)(allocate_type, memory_type, uint64_t, void**);
 	using allocate_pool = status (*)(memory_type, uint64_t, void**);
-	using handle_protocol = status (*)(handle, guid *, void **);
+	using handle_protocol = status (*)(handle, const guid *, void **);
 	using create_event = status (*)(evt, tpl, event_notify, void*, event*);
 	using locate_protocol = status (*)(const guid *, void *, void **);
 	using set_mem = void (*)(void *, uint64_t, uint8_t);
diff --git a/include/uefi/types.h b/include/uefi/types.h
index 5a28a1f..c870f02 100644
--- a/include/uefi/types.h
+++ b/include/uefi/types.h
@@ -12,8 +12,11 @@
 namespace uefi {
 
 using handle = void *;
-using event = void *;
 
+
+//
+// Error and status code definitions
+//
 constexpr uint64_t error_bit = 0x8000000000000000ull; 
 constexpr uint64_t make_error(uint64_t e) { return e|error_bit; }
 
@@ -31,6 +34,29 @@ enum class status : uint64_t
 inline bool is_error(status s) { return static_cast<uint64_t>(s) & error_bit; }
 inline bool is_warning(status s) { return !is_error(s) && s != status::success; }
 
+
+//
+// Time defitions
+//
+struct time
+{
+	uint16_t year;
+	uint8_t month;
+	uint8_t day;
+	uint8_t hour;
+	uint8_t minute;
+	uint8_t second;
+	uint8_t _pad0;
+	uint32_t nanosecond;
+	int16_t time_zone;
+	uint8_t daylight;
+	uint8_t _pad1;
+};
+
+
+//
+// Memory and allocation defitions
+//
 enum class memory_type : uint32_t
 {
 	reserved_memory_type,
@@ -58,6 +84,12 @@ enum class allocate_type : uint32_t
 	address
 };
 
+
+//
+// Event handling defitions
+//
+using event = void *;
+
 enum class evt : uint32_t
 {
 	notify_wait                   = 0x00000100,
@@ -80,6 +112,37 @@ enum class tpl : uint64_t
 
 using event_notify = void (*)(event, void*);
 
+
+//
+// File IO defitions
+//
+struct file_io_token
+{
+	event event;
+	status status;
+	uint64_t buffer_size;
+	void *buffer;
+};
+
+enum class file_mode : uint64_t
+{
+	read   = 0x0000000000000001ull,
+	write  = 0x0000000000000002ull,
+
+	create = 0x8000000000000000ull
+};
+
+enum class file_attr : uint64_t
+{
+	none      = 0,
+	read_only = 0x0000000000000001ull,
+	hidden    = 0x0000000000000002ull,
+	system    = 0x0000000000000004ull,
+	reserved  = 0x0000000000000008ull,
+	directory = 0x0000000000000010ull,
+	archive   = 0x0000000000000020ull
+};
+
 } // namespace uefi
 
 #endif
diff --git a/protos.yaml b/protos.yaml
index cd89bb3..a73d6d2 100644
--- a/protos.yaml
+++ b/protos.yaml
@@ -114,3 +114,115 @@
   post_data:
     - name: mode
       type: uefi::graphics_output_mode *
+
+- name: simple_file_system
+  guid: "0x0964e5b22,0x6459,0x11d2,{0x8e,0x39,0x00,0xa0,0xc9,0x69,0x72,0x3b}"
+  headers:
+    - uefi/protos/file.h
+  pre_data:
+    - name: revision
+      type: uint64_t
+  methods:
+    - name: open_volume
+      args:
+        - name: root
+          type: uefi::protos::file **
+
+- name: file
+  pre_data:
+    - name: revision
+      type: uint64_t
+  methods:
+    - name: open
+      args:
+        - name: new_handle
+          type: file **
+        - name: file_name
+          type: const wchar_t *
+        - name: open_mode
+          type: file_mode
+        - name: attributes
+          type: file_attr
+    - name: close
+    - name: delete_file
+    - name: read
+      args:
+        - name: buffer_size
+          type: uint64_t *
+        - name: buffer
+          type: void *
+    - name: write
+      args:
+        - name: buffer_size
+          type: uint64_t *
+        - name: buffer
+          type: void *
+    - name: get_position
+      args:
+        - name: position
+          type: uint64_t *
+    - name: set_position
+      args:
+        - name: position
+          type: uint64_t
+    - name: get_info
+      args:
+        - name: info_type
+          type: const guid *
+        - name: buffer_size
+          type: uint64_t *
+        - name: buffer
+          type: void *
+    - name: set_info
+      args:
+        - name: info_type
+          type: const guid *
+        - name: buffer_size
+          type: uint64_t
+        - name: buffer
+          type: void *
+    - name: flush
+    - name: open_ex
+      args:
+        - name: new_handle
+          type: file **
+        - name: file_name
+          type: const wchar_t *
+        - name: open_mode
+          type: uint64_t
+        - name: attributes
+          type: uint64_t
+        - name: token
+          type: file_io_token *
+    - name: read_ex
+      args:
+        - name: token
+          type: file_io_token *
+    - name: write_ex
+      args:
+        - name: token
+          type: file_io_token *
+    - name: flush_ex
+      args:
+        - name: token
+          type: file_io_token *
+
+- name: file_info
+  guid: "0x09576e92,0x6d3f,0x11d2,{0x8e,0x39,0x00,0xa0,0xc9,0x69,0x72,0x3b}"
+  pre_data:
+    - name: size
+      type: uint64_t
+    - name: file_size
+      type: uint64_t
+    - name: physical_size
+      type: uint64_t
+    - name: create_time
+      type: time
+    - name: last_access_time
+      type: time
+    - name: modification_time
+      type: time
+    - name: attribute
+      type: uint64_t
+    - name: file_name[]
+      type: wchar_t