add entire atmosphere source code and also add ram timing fixes

Source/Atmosphere/libraries/libexosphere/source/log/log_api.cpp

@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 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 <exosphere.hpp>
+
+namespace ams::log {
+
+    namespace {
+
+        constexpr inline uart::Port DefaultLogPort = uart::Port_ReservedDebug;
+        constexpr inline u32 DefaultLogFlags = static_cast<u32>(uart::Flag_None);
+        constexpr inline int DefaultBaudRate = 115200;
+        constinit uart::Port g_log_port   = DefaultLogPort;
+        constinit bool g_initialized_uart = false;
+
+        ALWAYS_INLINE void SetupUartClock(uart::Port port) {
+            /* The debug port must always be set up, for compatibility with official hos. */
+            pinmux::SetupUartA();
+            clkrst::EnableUartAClock();
+
+            /* If logging to a joy-con port, configure appropriately. */
+            if (port == uart::Port_LeftJoyCon) {
+                /* Logging to left joy-con (e.g. with Joyless). */
+                static_assert(uart::Port_LeftJoyCon == uart::Port_C);
+                pinmux::SetupUartC();
+                clkrst::EnableUartCClock();
+            } else if (port == uart::Port_RightJoyCon) {
+                /* Logging to right joy-con (e.g. with Joyless). */
+                static_assert(uart::Port_RightJoyCon == uart::Port_B);
+                pinmux::SetupUartB();
+                clkrst::EnableUartBClock();
+            }
+        }
+
+    }
+
+    void Initialize() {
+        return Initialize(DefaultLogPort, DefaultBaudRate, DefaultLogFlags);
+    }
+
+    void Initialize(uart::Port port, u32 baud_rate, u32 flags) {
+        /* Initialize pinmux and clock for the target uart port. */
+        SetupUartClock(port);
+
+        /* Initialize the target uart port. */
+        uart::Initialize(port, baud_rate, flags);
+
+        /* Note that we've initialized. */
+        g_log_port        = port;
+        g_initialized_uart = true;
+    }
+
+    void Finalize() {
+        g_initialized_uart = false;
+    }
+
+    NOINLINE void VPrintf(const char *fmt, ::std::va_list vl) {
+        /* TODO: What's a good size for the log buffer? Nintendo uses 0x100, but this seems big. */
+        char log_buf[0x80];
+        const auto len = util::TVSNPrintf(log_buf, sizeof(log_buf), fmt, vl);
+
+        if (g_initialized_uart) {
+            uart::SendText(g_log_port, log_buf, len);
+        }
+    }
+
+    NOINLINE void Printf(const char *fmt, ...)  {
+        ::std::va_list vl;
+        va_start(vl, fmt);
+        VPrintf(fmt, vl);
+        va_end(vl);
+    }
+
+    NOINLINE void Dump(const void *src, size_t size) {
+        const u8 *src_u8 = static_cast<const u8 *>(src);
+
+        for (size_t i = 0; i < size; ++i) {
+            if ((i % 0x20) == 0x00) {
+                Printf("%03zx| ", i);
+            }
+            Printf("%02x ", src_u8[i]);
+            if ((i % 0x20) == 0x1F) {
+                Printf("\n");
+            }
+        }
+        if ((size % 0x20) != 0) {
+            Printf("\n");
+        }
+     }
+
+
+    void SendText(const void *text, size_t size) {
+        if (g_initialized_uart) {
+            uart::SendText(g_log_port, text, size);
+        }
+    }
+
+    void Flush() {
+        if (g_initialized_uart) {
+            uart::WaitFlush(g_log_port);
+        }
+    }
+
+}