hocclk bpmp: communication

Source/hoc-clk/common/include/hocclk/board.h

@@ -30,7 +30,10 @@
 #include <stdint.h>
 #include <stddef.h>
 #include <stdbool.h>
+#ifdef __SWITCH__ // Wont be defined in BPMP-FW
 #include <switch/types.h>
+#endif
+
 typedef enum
 {
     HocClkSocType_Erista = 0, // T210, found in Icosa and Copper

Source/hoc-clk/common/include/hocclk/bpmp.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) Souldbminer, Lightos_ and Horizon OC Contributors
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 <stdint.h>
+#include "board.h"
+
+#define HOCCLK_BPMP_MAGIC 0x42504D50 // 'BPMP'
+
+/*
+ * Shared with BPMP-FW
+ * Any 64 bit data type is not permitted.
+ */
+typedef struct {
+    u32 magic;   // should be HOCCLK_BPMP_MAGIC once bpmpfw is running
+    u32 status;  // Reserved for error codes and such
+    u32 reserved[6];
+} HocClkBpmpSharedInfo;
+
+static_assert(sizeof(HocClkBpmpSharedInfo) == 0x20);

Source/hoc-clk/common/include/hocclk/clock_manager.h

@@ -29,6 +29,7 @@
 
 #include <stdint.h>
 #include "board.h"
+#include "bpmp.h"
 
 typedef struct {
 
@@ -84,6 +85,9 @@ typedef struct {
     bool rebootRequired;
     bool isFirstLoad;
 
+    // Populated from bpmpfw's work-RAM via SmcCopyFromIram (see HocClkBpmpSharedInfo above).
+    HocClkBpmpSharedInfo bpmpInfo;
+
     // Reserved for future use
     u8 reserved[0x358];
 } HocClkContext;
@@ -100,4 +104,4 @@ typedef struct
 
 #define HOCCLK_GLOBAL_PROFILE_TID 0xA111111111111111
 
-static_assert(sizeof(HocClkContext) == 0x500);
+static_assert(sizeof(HocClkContext) == 0x520);