1 files changed, 68 insertions, 0 deletions
diff --git a/include/console.h b/include/console.h
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index 0000000..791f770
--- /dev/null
+++ b/include/console.h
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+/* Copyright 2013-2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * 	http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CONSOLE_H
+#define __CONSOLE_H
+
+#include <lock.h>
+
+/*
+ * Our internal console uses the format of BML new-style in-memory
+ * console and supports input for setups without a physical console
+ * facility or FSP.
+ *
+ * (This is v3 of the format, the previous one sucked)
+ */
+struct memcons {
+	uint64_t magic;
+#define MEMCONS_MAGIC	0x6630696567726173
+	uint64_t obuf_phys;
+	uint64_t ibuf_phys;
+	uint32_t obuf_size;
+	uint32_t ibuf_size;
+	uint32_t out_pos;
+#define MEMCONS_OUT_POS_WRAP	0x80000000u
+#define MEMCONS_OUT_POS_MASK	0x00ffffffu
+	uint32_t in_prod;
+	uint32_t in_cons;
+};
+
+extern struct memcons memcons;
+
+#define INMEM_CON_IN_LEN	16
+#define INMEM_CON_OUT_LEN	(INMEM_CON_LEN - INMEM_CON_IN_LEN)
+
+/* Console driver */
+struct con_ops {
+	size_t (*write)(const char *buf, size_t len);
+	size_t (*read)(char *buf, size_t len);
+};
+
+extern struct lock con_lock;
+
+extern bool dummy_console_enabled(void);
+extern void force_dummy_console(void);
+extern bool flush_console(void);
+extern bool __flush_console(void);
+extern void set_console(struct con_ops *driver);
+
+extern void clear_console(void);
+extern void memcons_add_properties(void);
+extern void dummy_console_add_nodes(void);
+
+extern bool uart_console_poll(void);
+
+#endif /* __CONSOLE_H */