Initial Spring 2016 commit.

kern/dev/lamebus/lser.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
+ *	The President and Fellows of Harvard College.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LAMEBUS_LSER_H_
+#define _LAMEBUS_LSER_H_
+
+#include <spinlock.h>
+
+struct lser_softc {
+	/* Initialized by config function */
+	struct spinlock ls_lock;    /* protects ls_wbusy and device regs */
+	volatile bool ls_wbusy;     /* true if write in progress */
+
+	/* Initialized by lower-level attachment function */
+	void *ls_busdata;
+	uint32_t ls_buspos;
+
+	/* Initialized by higher-level attachment function */
+	void *ls_devdata;
+	void (*ls_start)(void *devdata);
+	void (*ls_input)(void *devdata, int ch);
+};
+
+/* Functions called by lower-level drivers */
+void lser_irq(/*struct lser_softc*/ void *sc);
+
+/* Functions called by higher-level drivers */
+void lser_write(/*struct lser_softc*/ void *sc, int ch);
+void lser_writepolled(/*struct lser_softc*/ void *sc, int ch);
+
+#endif /* _LAMEBUS_LSER_H_ */