kern: add most of 1.x lps driver

libraries/libmesosphere/source/board/nintendo/nx/kern_bpmp_api.hpp

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2018-2020 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/>.
+ */
+#pragma once
+#include <mesosphere.hpp>
+
+/* Message Flags */
+#define BPMP_MSG_DO_ACK		    (1 << 0)
+#define BPMP_MSG_RING_DOORBELL  (1 << 1)
+
+/* Messages */
+#define MRQ_PING		    0
+#define MRQ_ENABLE_SUSPEND	17
+#define MRQ_CPU_PMIC_SELECT 28
+
+/* BPMP Power states. */
+#define TEGRA_BPMP_PM_CC1	9
+#define TEGRA_BPMP_PM_CC4	12
+#define TEGRA_BPMP_PM_CC6	14
+#define TEGRA_BPMP_PM_CC7	15
+#define TEGRA_BPMP_PM_SC1	17
+#define TEGRA_BPMP_PM_SC2	18
+#define TEGRA_BPMP_PM_SC3	19
+#define TEGRA_BPMP_PM_SC4	20
+#define TEGRA_BPMP_PM_SC7	23
+
+/* Channel states. */
+#define CH_MASK(ch)	(0x3u << ((ch) * 2))
+#define SL_SIGL(ch)	(0x0u << ((ch) * 2))
+#define SL_QUED(ch)	(0x1u << ((ch) * 2))
+#define MA_FREE(ch)	(0x2u << ((ch) * 2))
+#define MA_ACKD(ch)	(0x3u << ((ch) * 2))
+
+constexpr inline int MessageSize = 0x80;
+constexpr inline int MessageDataSizeMax = 0x78;
+
+struct MailboxData {
+    s32 code;
+    s32 flags;
+    u8 data[MessageDataSizeMax];
+};
+
+static_assert(ams::util::is_pod<MailboxData>::value);
+static_assert(sizeof(MailboxData) == MessageSize);
+
+struct ChannelData {
+    MailboxData *ib;
+    MailboxData *ob;
+};
+
+