libstrat: namespace remaining non-namespaced code. more new-ipc updates

stratosphere/libstratosphere/source/dd/dd_io_mappings.cpp

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2018-2019 Atmosphère-NX
+ *
+ * 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/>.
+ */
+#include <stratosphere.hpp>
+
+namespace sts::dd {
+
+    uintptr_t QueryIoMapping(uintptr_t phys_addr, size_t size) {
+        u64 virtual_addr;
+        const u64 aligned_addr = util::AlignDown(phys_addr, 0x1000);
+        const size_t offset = phys_addr - aligned_addr;
+        const u64 aligned_size = size + offset;
+        R_TRY_CATCH(svcQueryIoMapping(&virtual_addr, aligned_addr, aligned_size)) {
+            /* Official software handles this by returning 0. */
+            R_CATCH(ResultKernelNotFound) { return 0; }
+        } R_END_TRY_CATCH_WITH_ASSERT;
+
+        return static_cast<uintptr_t>(virtual_addr + offset);
+    }
+
+    namespace {
+
+        inline u32 ReadWriteRegisterImpl(uintptr_t phys_addr, u32 value, u32 mask) {
+            u32 out_value;
+            R_ASSERT(svcReadWriteRegister(&out_value, phys_addr, mask, value));
+            return out_value;
+        }
+
+    }
+
+    u32 ReadRegister(uintptr_t phys_addr) {
+        return ReadWriteRegisterImpl(phys_addr, 0, 0);
+    }
+
+    void WriteRegister(uintptr_t phys_addr, u32 value) {
+        ReadWriteRegisterImpl(phys_addr, value, ~u32());
+    }
+
+    u32 ReadWriteRegister(uintptr_t phys_addr, u32 value, u32 mask) {
+        return ReadWriteRegisterImpl(phys_addr, value, mask);
+    }
+
+}