Commit cmx(4), a driver for Omnikey CardMan 4040 PCMCIA smartcard readers.

PR:		kern/114582
Submitted by:	Daniel Roethlisberger <daniel@roe.ch>
Reviewed by:	imp, myself
Tested by:	johans, myself
MFC after:	2 weeks

1 files changed, 99 insertions, 0 deletions

diff --git a/sys/dev/cmx/cmxvar.h b/sys/dev/cmx/cmxvar.h
new file mode 100644
index 0000000..1567c5e
--- /dev/null
+++ b/sys/dev/cmx/cmxvar.h
@@ -0,0 +1,99 @@
+/*-
+ * Copyright (c) 2006-2007 Daniel Roethlisberger <daniel@roe.ch>
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+/*#define	CMX_DEBUG*/
+/*#define	CMX_INTR*/
+
+#define	CMX_MIN_RDLEN	10		/* min read length */
+#define	CMX_MIN_WRLEN	5		/* min write length */
+#define	CMX_BUFSZ	512		/* I/O block size */
+
+struct cmx_softc {
+	device_t dev;			/* pccard device */
+	struct cdev *cdev;		/* character device */
+
+	struct resource *ioport;	/* io port resource descriptor */
+	int ioport_rid;			/* io port resource identification */
+
+	bus_space_tag_t bst;		/* bus space tag */
+	bus_space_handle_t bsh;		/* bus space handle */
+
+#ifdef CMX_INTR
+	struct resource* irq;		/* irq resource descriptor */
+	int irq_rid;			/* irq resource identification */
+	void *ih;			/* intr handle */
+#endif
+
+	struct mtx mtx;			/* per-unit lock */
+	struct callout ch;		/* callout handle */
+	struct selinfo sel;		/* select/poll queue handle */
+
+	int open;			/* is chardev open? */
+	int polling;			/* are we polling? */
+	int dying;			/* are we detaching? */
+
+	unsigned long timeout;		/* response timeout */
+
+	uint8_t buf[CMX_BUFSZ];		/* read/write buffer */
+};
+
+extern devclass_t cmx_devclass;
+
+void	cmx_init_softc(device_t);
+int	cmx_alloc_resources(device_t);
+void	cmx_release_resources(device_t);
+int	cmx_attach(device_t);
+int	cmx_detach(device_t);
+
+#define	CMX_READ_1(sc, off)						\
+	(bus_space_read_1((sc)->bst, (sc)->bsh, off))
+#define	CMX_WRITE_1(sc, off, val)					\
+	(bus_space_write_1((sc)->bst, (sc)->bsh, off, val))
+
+#define	cmx_read_BSR(sc)						\
+	CMX_READ_1(sc, REG_OFFSET_BSR)
+#define	cmx_write_BSR(sc, val)						\
+	CMX_WRITE_1(sc, REG_OFFSET_BSR, val)
+#define	cmx_read_SCR(sc)						\
+	CMX_READ_1(sc, REG_OFFSET_SCR)
+#define	cmx_write_SCR(sc, val)						\
+	CMX_WRITE_1(sc, REG_OFFSET_SCR, val)
+#define	cmx_read_DTR(sc)						\
+	CMX_READ_1(sc, REG_OFFSET_DTR)
+#define	cmx_write_DTR(sc, val)						\
+	CMX_WRITE_1(sc, REG_OFFSET_DTR, val)
+
+#define	cmx_test(byte, flags, test)					\
+	(((byte) & (flags)) == ((test) ? (flags) : 0))
+
+#define	cmx_test_BSR(sc, flags, test)					\
+	cmx_test(cmx_read_BSR(sc), flags, test)
+
+#define	CMX_LOCK(sc)			mtx_lock(&(sc)->mtx)
+#define	CMX_UNLOCK(sc)			mtx_unlock(&(sc)->mtx)
+#define	CMX_LOCK_ASSERT(sc, what)	mtx_assert(&(sc)->mtx, (what))