[PATCH] New Omnikey Cardman 4000 driver

Add new Omnikey Cardman 4000 smartcard reader driver
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

MAINTAINERS

@@ -1873,6 +1873,11 @@ L:	linux-tr@linuxtr.net
 W:	http://www.linuxtr.net
 S:	Maintained
 
+OMNIKEY CARDMAN 4000 DRIVER
+P:	Harald Welte
+M:	laforge@gnumonks.org
+S:	Maintained
+
 OMNIKEY CARDMAN 4040 DRIVER
 P:	Harald Welte
 M:	laforge@gnumonks.org

drivers/char/pcmcia/Kconfig

@@ -18,6 +18,17 @@ config SYNCLINK_CS
 	  The module will be called synclinkmp.  If you want to do that, say M
 	  here.
 
+config CARDMAN_4000
+	tristate "Omnikey Cardman 4000 support"
+	depends on PCMCIA
+	help
+	  Enable support for the Omnikey Cardman 4000 PCMCIA Smartcard
+	  reader.
+
+	  This kernel driver requires additional userspace support, either
+	  by the vendor-provided PC/SC ifd_handler (http://www.omnikey.com/),
+	  or via the cm4000 backend of OpenCT (http://www.opensc.com/).
+
 config CARDMAN_4040
 	tristate "Omnikey CardMan 4040 support"
 	depends on PCMCIA

drivers/char/pcmcia/Makefile

@@ -5,4 +5,5 @@
 #
 
 obj-$(CONFIG_SYNCLINK_CS) += synclink_cs.o
+obj-$(CONFIG_CARDMAN_4000) += cm4000_cs.o
 obj-$(CONFIG_CARDMAN_4040) += cm4040_cs.o

include/linux/cm4000_cs.h

+#ifndef	_CM4000_H_
+#define	_CM4000_H_
+
+#define	MAX_ATR			33
+
+#define	CM4000_MAX_DEV		4
+
+/* those two structures are passed via ioctl() from/to userspace.  They are
+ * used by existing userspace programs, so I kepth the awkward "bIFSD" naming
+ * not to break compilation of userspace apps. -HW */
+
+typedef struct atreq {
+	int32_t atr_len;
+	unsigned char atr[64];
+	int32_t power_act;
+	unsigned char bIFSD;
+	unsigned char bIFSC;
+} atreq_t;
+
+
+/* what is particularly stupid in the original driver is the arch-dependant
+ * member sizes. This leads to CONFIG_COMPAT breakage, since 32bit userspace
+ * will lay out the structure members differently than the 64bit kernel.
+ *
+ * I've changed "ptsreq.protocol" from "unsigned long" to "u_int32_t".
+ * On 32bit this will make no difference.  With 64bit kernels, it will make
+ * 32bit apps work, too.
+ */
+
+typedef struct ptsreq {
+	u_int32_t protocol; /*T=0: 2^0, T=1:  2^1*/
+ 	unsigned char flags;
+ 	unsigned char pts1;
+ 	unsigned char pts2;
+	unsigned char pts3;
+} ptsreq_t;
+
+#define	CM_IOC_MAGIC		'c'
+#define	CM_IOC_MAXNR	        255
+
+#define	CM_IOCGSTATUS		_IOR (CM_IOC_MAGIC, 0, unsigned char *)
+#define	CM_IOCGATR		_IOWR(CM_IOC_MAGIC, 1, atreq_t *)
+#define	CM_IOCSPTS		_IOW (CM_IOC_MAGIC, 2, ptsreq_t *)
+#define	CM_IOCSRDR		_IO  (CM_IOC_MAGIC, 3)
+#define CM_IOCARDOFF            _IO  (CM_IOC_MAGIC, 4)
+
+#define CM_IOSDBGLVL            _IOW(CM_IOC_MAGIC, 250, int*)
+
+/* card and device states */
+#define	CM_CARD_INSERTED		0x01
+#define	CM_CARD_POWERED			0x02
+#define	CM_ATR_PRESENT			0x04
+#define	CM_ATR_VALID	 		0x08
+#define	CM_STATE_VALID			0x0f
+/* extra info only from CM4000 */
+#define	CM_NO_READER			0x10
+#define	CM_BAD_CARD			0x20
+
+
+#ifdef __KERNEL__
+
+#define	DEVICE_NAME		"cmm"
+#define	MODULE_NAME		"cm4000_cs"
+
+#endif	/* __KERNEL__ */
+#endif	/* _CM4000_H_ */