char: pcmcia: remove all the drivers

These char PCMCIA drivers are buggy[1] and receive only minimal care. It
was concluded[2], that we should try to remove most pcmcia drivers
completely. Let's start with these char broken one.

Note that I also removed a UAPI header: include/uapi/linux/cm4000_cs.h.
I found only coccinelle tests mentioning some ioctl constants from that
file. But they are not actually used. Anyway, should someone complain,
we may reintroduce the header (or its parts).

[1] https://lore.kernel.org/all/f41c2765-80e0-48bc-b1e4-8cfd3230fd4a@www.fastmail.com/
[2] https://lore.kernel.org/all/c5b39544-a4fb-4796-a046-0b9be9853787@app.fastmail.com/

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: "Hyunwoo Kim" <imv4bel@gmail.com>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Lubomir Rintel <lkundrak@v3.sk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230222092302.6348-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

19 files changed, 0 insertions, 7466 deletions

diff --git a/Documentation/process/magic-number.rst b/Documentation/process/magic-number.rst
index 64b5948fc1d4..7029c3c084ee 100644
--- a/Documentation/process/magic-number.rst
+++ b/Documentation/process/magic-number.rst
@@ -72,7 +72,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``
diff --git a/Documentation/translations/it_IT/process/magic-number.rst b/Documentation/translations/it_IT/process/magic-number.rst
index 02eb7eb2448e..ae92ab633c16 100644
--- a/Documentation/translations/it_IT/process/magic-number.rst
+++ b/Documentation/translations/it_IT/process/magic-number.rst
@@ -78,7 +78,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``
diff --git a/Documentation/translations/sp_SP/process/magic-number.rst b/Documentation/translations/sp_SP/process/magic-number.rst
index 2b62cec34e8e..7c7dfb4ba80b 100644
--- a/Documentation/translations/sp_SP/process/magic-number.rst
+++ b/Documentation/translations/sp_SP/process/magic-number.rst
@@ -77,7 +77,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``
diff --git a/Documentation/translations/zh_CN/process/magic-number.rst b/Documentation/translations/zh_CN/process/magic-number.rst
index 0617ce125e12..37ed33034134 100644
--- a/Documentation/translations/zh_CN/process/magic-number.rst
+++ b/Documentation/translations/zh_CN/process/magic-number.rst
@@ -61,7 +61,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``
diff --git a/Documentation/translations/zh_TW/process/magic-number.rst b/Documentation/translations/zh_TW/process/magic-number.rst
index f3f7082e17c6..1d48e1bbf5f2 100644
--- a/Documentation/translations/zh_TW/process/magic-number.rst
+++ b/Documentation/translations/zh_TW/process/magic-number.rst
@@ -64,7 +64,6 @@ PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/
 APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``
 FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``
 SLIP_MAGIC            0x5302           slip                     ``drivers/net/slip.h``
-MGSLPC_MAGIC          0x5402           mgslpc_info              ``drivers/char/pcmcia/synclink_cs.c``
 BAYCOM_MAGIC          0x19730510       baycom_state             ``drivers/net/baycom_epp.c``
 HDLCDRV_MAGIC         0x5ac6e778       hdlcdrv_state            ``include/linux/hdlcdrv.h``
 KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/include/asm/sn/klkernvars.h``
diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst b/Documentation/userspace-api/ioctl/ioctl-number.rst
index 0a1882e296ae..176e8fc3f31b 100644
--- a/Documentation/userspace-api/ioctl/ioctl-number.rst
+++ b/Documentation/userspace-api/ioctl/ioctl-number.rst
@@ -222,7 +222,6 @@ Code  Seq#    Include File                                           Comments
 'b'   00-FF                                                          conflict! bit3 vme host bridge
                                                                      <mailto:natalia@nikhefk.nikhef.nl>
 'b'   00-0F  linux/dma-buf.h                                         conflict!
-'c'   all    linux/cm4000_cs.h                                       conflict!
 'c'   00-7F  linux/comstats.h                                        conflict!
 'c'   00-7F  linux/coda.h                                            conflict!
 'c'   00-1F  linux/chio.h                                            conflict!
diff --git a/MAINTAINERS b/MAINTAINERS
index 8d5bc223f305..64068a601e59 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15322,18 +15322,6 @@ S:	Maintained
 F:	Documentation/filesystems/omfs.rst
 F:	fs/omfs/
 
-OMNIKEY CARDMAN 4000 DRIVER
-M:	Harald Welte <laforge@gnumonks.org>
-S:	Maintained
-F:	drivers/char/pcmcia/cm4000_cs.c
-F:	include/linux/cm4000_cs.h
-F:	include/uapi/linux/cm4000_cs.h
-
-OMNIKEY CARDMAN 4040 DRIVER
-M:	Harald Welte <laforge@gnumonks.org>
-S:	Maintained
-F:	drivers/char/pcmcia/cm4040_cs.*
-
 OMNIVISION OG01A1B SENSOR DRIVER
 M:	Shawn Tu <shawnx.tu@intel.com>
 L:	linux-media@vger.kernel.org
@@ -18609,11 +18597,6 @@ F:	include/linux/wait.h
 F:	include/uapi/linux/sched.h
 F:	kernel/sched/
 
-SCR24X CHIP CARD INTERFACE DRIVER
-M:	Lubomir Rintel <lkundrak@v3.sk>
-S:	Supported
-F:	drivers/char/pcmcia/scr24x_cs.c
-
 SCSI RDMA PROTOCOL (SRP) INITIATOR
 M:	Bart Van Assche <bvanassche@acm.org>
 L:	linux-rdma@vger.kernel.org
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index 110258277959..d8729b94400e 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -614,8 +614,6 @@ CONFIG_HW_RANDOM=y
 CONFIG_HW_RANDOM_VIRTIO=m
 CONFIG_NVRAM=y
 CONFIG_DTLK=m
-CONFIG_CARDMAN_4000=m
-CONFIG_CARDMAN_4040=m
 CONFIG_IPWIRELESS=m
 CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_HYDRA=m
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 30fe9848dac1..801d6c83f896 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -247,8 +247,6 @@ config SONYPI
 	  To compile this driver as a module, choose M here: the
 	  module will be called sonypi.
 
-source "drivers/char/pcmcia/Kconfig"
-
 config MWAVE
 	tristate "ACP Modem (Mwave) support"
 	depends on X86 && TTY
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 1b35d1724565..c5f532e412f1 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -35,7 +35,6 @@ obj-$(CONFIG_TELCLOCK)		+= tlclk.o
 
 obj-$(CONFIG_MWAVE)		+= mwave/
 obj-y				+= agp/
-obj-$(CONFIG_PCMCIA)		+= pcmcia/
 
 obj-$(CONFIG_HANGCHECK_TIMER)	+= hangcheck-timer.o
 obj-$(CONFIG_TCG_TPM)		+= tpm/
diff --git a/drivers/char/pcmcia/Kconfig b/drivers/char/pcmcia/Kconfig
deleted file mode 100644
index 26724990074c..000000000000
--- a/drivers/char/pcmcia/Kconfig
+++ /dev/null
@@ -1,59 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# PCMCIA character device configuration
-#
-
-menu "PCMCIA character devices"
-	depends on PCMCIA!=n
-
-config SYNCLINK_CS
-	tristate "SyncLink PC Card support"
-	depends on PCMCIA && TTY
-	help
-	  Enable support for the SyncLink PC Card serial adapter, running
-	  asynchronous and HDLC communications up to 512Kbps. The port is
-	  selectable for RS-232, V.35, RS-449, RS-530, and X.21
-
-	  This driver may be built as a module ( = code which can be
-	  inserted in and removed from the running kernel whenever you want).
-	  The module will be called synclink_cs.  If you want to do that, say M
-	  here.
-
-config CARDMAN_4000
-	tristate "Omnikey Cardman 4000 support"
-	depends on PCMCIA
-	select BITREVERSE
-	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-project.org/opensc).
-
-config CARDMAN_4040
-	tristate "Omnikey CardMan 4040 support"
-	depends on PCMCIA
-	help
-	  Enable support for the Omnikey CardMan 4040 PCMCIA Smartcard
-	  reader.
-
-	  This card is basically a USB CCID device connected to a FIFO
-	  in I/O space.  To use the kernel driver, you will need either the
-	  PC/SC ifdhandler provided from the Omnikey homepage
-	  (http://www.omnikey.com/), or a current development version of OpenCT
-	  (http://www.opensc-project.org/opensc).
-
-config SCR24X
-	tristate "SCR24x Chip Card Interface support"
-	depends on PCMCIA
-	help
-	  Enable support for the SCR24x PCMCIA Chip Card Interface.
-
-	  To compile this driver as a module, choose M here.
-	  The module will be called scr24x_cs..
-
-	  If unsure say N.
-
-endmenu
-
diff --git a/drivers/char/pcmcia/Makefile b/drivers/char/pcmcia/Makefile
deleted file mode 100644
index 024eed1c4ca5..000000000000
--- a/drivers/char/pcmcia/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# drivers/char/pcmcia/Makefile
-#
-# Makefile for the Linux PCMCIA char device drivers.
-#
-
-obj-$(CONFIG_SYNCLINK_CS) += synclink_cs.o
-obj-$(CONFIG_CARDMAN_4000) += cm4000_cs.o
-obj-$(CONFIG_CARDMAN_4040) += cm4040_cs.o
-obj-$(CONFIG_SCR24X) += scr24x_cs.o
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
deleted file mode 100644
index e656f42a28ac..000000000000
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ /dev/null
@@ -1,1912 +0,0 @@
- /*
-  * A driver for the PCMCIA Smartcard Reader "Omnikey CardMan Mobile 4000"
-  *
-  * cm4000_cs.c support.linux@omnikey.com
-  *
-  * Tue Oct 23 11:32:43 GMT 2001 herp - cleaned up header files
-  * Sun Jan 20 10:11:15 MET 2002 herp - added modversion header files
-  * Thu Nov 14 16:34:11 GMT 2002 mh   - added PPS functionality
-  * Tue Nov 19 16:36:27 GMT 2002 mh   - added SUSPEND/RESUME functionailty
-  * Wed Jul 28 12:55:01 CEST 2004 mh  - kernel 2.6 adjustments
-  *
-  * current version: 2.4.0gm4
-  *
-  * (C) 2000,2001,2002,2003,2004 Omnikey AG
-  *
-  * (C) 2005-2006 Harald Welte <laforge@gnumonks.org>
-  * 	- Adhere to Kernel process/coding-style.rst
-  * 	- Port to 2.6.13 "new" style PCMCIA
-  * 	- Check for copy_{from,to}_user return values
-  * 	- Use nonseekable_open()
-  * 	- add class interface for udev device creation
-  *
-  * All rights reserved. Licensed under dual BSD/GPL license.
-  */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/delay.h>
-#include <linux/bitrev.h>
-#include <linux/mutex.h>
-#include <linux/uaccess.h>
-#include <linux/io.h>
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/cisreg.h>
-#include <pcmcia/ciscode.h>
-#include <pcmcia/ds.h>
-
-#include <linux/cm4000_cs.h>
-
-/* #define ATR_CSUM */
-
-#define reader_to_dev(x)	(&x->p_dev->dev)
-
-/* n (debug level) is ignored */
-/* additional debug output may be enabled by re-compiling with
- * CM4000_DEBUG set */
-/* #define CM4000_DEBUG */
-#define DEBUGP(n, rdr, x, args...) do { 		\
-		dev_dbg(reader_to_dev(rdr), "%s:" x, 	\
-			   __func__ , ## args);		\
-	} while (0)
-
-static DEFINE_MUTEX(cmm_mutex);
-
-#define	T_1SEC		(HZ)
-#define	T_10MSEC	msecs_to_jiffies(10)
-#define	T_20MSEC	msecs_to_jiffies(20)
-#define	T_40MSEC	msecs_to_jiffies(40)
-#define	T_50MSEC	msecs_to_jiffies(50)
-#define	T_100MSEC	msecs_to_jiffies(100)
-#define	T_500MSEC	msecs_to_jiffies(500)
-
-static void cm4000_release(struct pcmcia_device *link);
-
-static int major;		/* major number we get from the kernel */
-
-/* note: the first state has to have number 0 always */
-
-#define	M_FETCH_ATR	0
-#define	M_TIMEOUT_WAIT	1
-#define	M_READ_ATR_LEN	2
-#define	M_READ_ATR	3
-#define	M_ATR_PRESENT	4
-#define	M_BAD_CARD	5
-#define M_CARDOFF	6
-
-#define	LOCK_IO			0
-#define	LOCK_MONITOR		1
-
-#define IS_AUTOPPS_ACT		 6
-#define	IS_PROCBYTE_PRESENT	 7
-#define	IS_INVREV		 8
-#define IS_ANY_T0		 9
-#define	IS_ANY_T1		10
-#define	IS_ATR_PRESENT		11
-#define	IS_ATR_VALID		12
-#define	IS_CMM_ABSENT		13
-#define	IS_BAD_LENGTH		14
-#define	IS_BAD_CSUM		15
-#define	IS_BAD_CARD		16
-
-#define REG_FLAGS0(x)		(x + 0)
-#define REG_FLAGS1(x)		(x + 1)
-#define REG_NUM_BYTES(x)	(x + 2)
-#define REG_BUF_ADDR(x)		(x + 3)
-#define REG_BUF_DATA(x)		(x + 4)
-#define REG_NUM_SEND(x)		(x + 5)
-#define REG_BAUDRATE(x)		(x + 6)
-#define REG_STOPBITS(x)		(x + 7)
-
-struct cm4000_dev {
-	struct pcmcia_device *p_dev;
-
-	unsigned char atr[MAX_ATR];
-	unsigned char rbuf[512];
-	unsigned char sbuf[512];
-
-	wait_queue_head_t devq;		/* when removing cardman must not be
-					   zeroed! */
-
-	wait_queue_head_t ioq;		/* if IO is locked, wait on this Q */
-	wait_queue_head_t atrq;		/* wait for ATR valid */
-	wait_queue_head_t readq;	/* used by write to wake blk.read */
-
-	/* warning: do not move this struct group.
-	 * initialising to zero depends on it - see ZERO_DEV below.  */
-	struct_group(init,
-	unsigned char atr_csum;
-	unsigned char atr_len_retry;
-	unsigned short atr_len;
-	unsigned short rlen;	/* bytes avail. after write */
-	unsigned short rpos;	/* latest read pos. write zeroes */
-	unsigned char procbyte;	/* T=0 procedure byte */
-	unsigned char mstate;	/* state of card monitor */
-	unsigned char cwarn;	/* slow down warning */
-	unsigned char flags0;	/* cardman IO-flags 0 */
-	unsigned char flags1;	/* cardman IO-flags 1 */
-	unsigned int mdelay;	/* variable monitor speeds, in jiffies */
-
-	unsigned int baudv;	/* baud value for speed */
-	unsigned char ta1;
-	unsigned char proto;	/* T=0, T=1, ... */
-	unsigned long flags;	/* lock+flags (MONITOR,IO,ATR) * for concurrent
-				   access */
-
-	unsigned char pts[4];
-
-	struct timer_list timer;	/* used to keep monitor running */
-	int monitor_running;
-	);
-};
-
-#define	ZERO_DEV(dev)	memset(&((dev)->init), 0, sizeof((dev)->init))
-
-static struct pcmcia_device *dev_table[CM4000_MAX_DEV];
-static struct class *cmm_class;
-
-/* This table doesn't use spaces after the comma between fields and thus
- * violates process/coding-style.rst.  However, I don't really think wrapping it around will
- * make it any clearer to read -HW */
-static unsigned char fi_di_table[10][14] = {
-/*FI     00   01   02   03   04   05   06   07   08   09   10   11   12   13 */
-/*DI */
-/* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
-/* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11},
-/* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11},
-/* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3},
-/* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4},
-/* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5},
-/* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6},
-/* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
-/* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8},
-/* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9}
-};
-
-#ifndef CM4000_DEBUG
-#define	xoutb	outb
-#define	xinb	inb
-#else
-static inline void xoutb(unsigned char val, unsigned short port)
-{
-	pr_debug("outb(val=%.2x,port=%.4x)\n", val, port);
-	outb(val, port);
-}
-static inline unsigned char xinb(unsigned short port)
-{
-	unsigned char val;
-
-	val = inb(port);
-	pr_debug("%.2x=inb(%.4x)\n", val, port);
-
-	return val;
-}
-#endif
-
-static inline unsigned char invert_revert(unsigned char ch)
-{
-	return bitrev8(~ch);
-}
-
-static void str_invert_revert(unsigned char *b, int len)
-{
-	int i;
-
-	for (i = 0; i < len; i++)
-		b[i] = invert_revert(b[i]);
-}
-
-#define	ATRLENCK(dev,pos) \
-	if (pos>=dev->atr_len || pos>=MAX_ATR) \
-		goto return_0;
-
-static unsigned int calc_baudv(unsigned char fidi)
-{
-	unsigned int wcrcf, wbrcf, fi_rfu, di_rfu;
-
-	fi_rfu = 372;
-	di_rfu = 1;
-
-	/* FI */
-	switch ((fidi >> 4) & 0x0F) {
-	case 0x00:
-		wcrcf = 372;
-		break;
-	case 0x01:
-		wcrcf = 372;
-		break;
-	case 0x02:
-		wcrcf = 558;
-		break;
-	case 0x03:
-		wcrcf = 744;
-		break;
-	case 0x04:
-		wcrcf = 1116;
-		break;
-	case 0x05:
-		wcrcf = 1488;
-		break;
-	case 0x06:
-		wcrcf = 1860;
-		break;
-	case 0x07:
-		wcrcf = fi_rfu;
-		break;
-	case 0x08:
-		wcrcf = fi_rfu;
-		break;
-	case 0x09:
-		wcrcf = 512;
-		break;
-	case 0x0A:
-		wcrcf = 768;
-		break;
-	case 0x0B:
-		wcrcf = 1024;
-		break;
-	case 0x0C:
-		wcrcf = 1536;
-		break;
-	case 0x0D:
-		wcrcf = 2048;
-		break;
-	default:
-		wcrcf = fi_rfu;
-		break;
-	}
-
-	/* DI */
-	switch (fidi & 0x0F) {
-	case 0x00:
-		wbrcf = di_rfu;
-		break;
-	case 0x01:
-		wbrcf = 1;
-		break;
-	case 0x02:
-		wbrcf = 2;
-		break;
-	case 0x03:
-		wbrcf = 4;
-		break;
-	case 0x04:
-		wbrcf = 8;
-		break;
-	case 0x05:
-		wbrcf = 16;
-		break;
-	case 0x06:
-		wbrcf = 32;
-		break;
-	case 0x07:
-		wbrcf = di_rfu;
-		break;
-	case 0x08:
-		wbrcf = 12;
-		break;
-	case 0x09:
-		wbrcf = 20;
-		break;
-	default:
-		wbrcf = di_rfu;
-		break;
-	}
-
-	return (wcrcf / wbrcf);
-}
-
-static unsigned short io_read_num_rec_bytes(unsigned int iobase,
-					    unsigned short *s)
-{
-	unsigned short tmp;
-
-	tmp = *s = 0;
-	do {
-		*s = tmp;
-		tmp = inb(REG_NUM_BYTES(iobase)) |
-				(inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0);
-	} while (tmp != *s);
-
-	return *s;
-}
-
-static int parse_atr(struct cm4000_dev *dev)
-{
-	unsigned char any_t1, any_t0;
-	unsigned char ch, ifno;
-	int ix, done;
-
-	DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len);
-
-	if (dev->atr_len < 3) {
-		DEBUGP(5, dev, "parse_atr: atr_len < 3\n");
-		return 0;
-	}
-
-	if (dev->atr[0] == 0x3f)
-		set_bit(IS_INVREV, &dev->flags);
-	else
-		clear_bit(IS_INVREV, &dev->flags);
-	ix = 1;
-	ifno = 1;
-	ch = dev->atr[1];
-	dev->proto = 0;		/* XXX PROTO */
-	any_t1 = any_t0 = done = 0;
-	dev->ta1 = 0x11;	/* defaults to 9600 baud */
-	do {
-		if (ifno == 1 && (ch & 0x10)) {
-			/* read first interface byte and TA1 is present */
-			dev->ta1 = dev->atr[2];
-			DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1);
-			ifno++;
-		} else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */
-			dev->ta1 = 0x11;
-			ifno++;
-		}
-
-		DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0);
-		ix += ((ch & 0x10) >> 4)	/* no of int.face chars */
-		    +((ch & 0x20) >> 5)
-		    + ((ch & 0x40) >> 6)
-		    + ((ch & 0x80) >> 7);
-		/* ATRLENCK(dev,ix); */
-		if (ch & 0x80) {	/* TDi */
-			ch = dev->atr[ix];
-			if ((ch & 0x0f)) {
-				any_t1 = 1;
-				DEBUGP(5, dev, "card is capable of T=1\n");
-			} else {
-				any_t0 = 1;
-				DEBUGP(5, dev, "card is capable of T=0\n");
-			}
-		} else
-			done = 1;
-	} while (!done);
-
-	DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n",
-	      ix, dev->atr[1] & 15, any_t1);
-	if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) {
-		DEBUGP(5, dev, "length error\n");
-		return 0;
-	}
-	if (any_t0)
-		set_bit(IS_ANY_T0, &dev->flags);
-
-	if (any_t1) {		/* compute csum */
-		dev->atr_csum = 0;
-#ifdef ATR_CSUM
-		for (i = 1; i < dev->atr_len; i++)
-			dev->atr_csum ^= dev->atr[i];
-		if (dev->atr_csum) {
-			set_bit(IS_BAD_CSUM, &dev->flags);
-			DEBUGP(5, dev, "bad checksum\n");
-			goto return_0;
-		}
-#endif
-		if (any_t0 == 0)
-			dev->proto = 1;	/* XXX PROTO */
-		set_bit(IS_ANY_T1, &dev->flags);
-	}
-
-	return 1;
-}
-
-struct card_fixup {
-	char atr[12];
-	u_int8_t atr_len;
-	u_int8_t stopbits;
-};
-
-static struct card_fixup card_fixups[] = {
-	{	/* ACOS */
-		.atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
-		.atr_len = 7,
-		.stopbits = 0x03,
-	},
-	{	/* Motorola */
-		.atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
-			0x41, 0x81, 0x81 },
-		.atr_len = 11,
-		.stopbits = 0x04,
-	},
-};
-
-static void set_cardparameter(struct cm4000_dev *dev)
-{
-	int i;
-	unsigned int iobase = dev->p_dev->resource[0]->start;
-	u_int8_t stopbits = 0x02; /* ISO default */
-
-	DEBUGP(3, dev, "-> set_cardparameter\n");
-
-	dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8);
-	xoutb(dev->flags1, REG_FLAGS1(iobase));
-	DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1);
-
-	/* set baudrate */
-	xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase));
-
-	DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv,
-	      ((dev->baudv - 1) & 0xFF));
-
-	/* set stopbits */
-	for (i = 0; i < ARRAY_SIZE(card_fixups); i++) {
-		if (!memcmp(dev->atr, card_fixups[i].atr,
-			    card_fixups[i].atr_len))
-			stopbits = card_fixups[i].stopbits;
-	}
-	xoutb(stopbits, REG_STOPBITS(iobase));
-
-	DEBUGP(3, dev, "<- set_cardparameter\n");
-}
-
-static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
-{
-
-	unsigned long tmp, i;
-	unsigned short num_bytes_read;
-	unsigned char pts_reply[4];
-	ssize_t rc;
-	unsigned int iobase = dev->p_dev->resource[0]->start;
-
-	rc = 0;
-
-	DEBUGP(3, dev, "-> set_protocol\n");
-	DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, "
-		 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, "
-		 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol,
-		 (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2,
-		 ptsreq->pts3);
-
-	/* Fill PTS structure */
-	dev->pts[0] = 0xff;
-	dev->pts[1] = 0x00;
-	tmp = ptsreq->protocol;
-	while ((tmp = (tmp >> 1)) > 0)
-		dev->pts[1]++;
-	dev->proto = dev->pts[1];	/* Set new protocol */
-	dev->pts[1] = (0x01 << 4) | (dev->pts[1]);
-
-	/* Correct Fi/Di according to CM4000 Fi/Di table */
-	DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1);
-	/* set Fi/Di according to ATR TA(1) */
-	dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F];
-
-	/* Calculate PCK character */
-	dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2];
-
-	DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n",
-	       dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]);
-
-	/* check card convention */
-	if (test_bit(IS_INVREV, &dev->flags))
-		str_invert_revert(dev->pts, 4);
-
-	/* reset SM */
-	xoutb(0x80, REG_FLAGS0(iobase));
-
-	/* Enable access to the message buffer */
-	DEBUGP(5, dev, "Enable access to the messages buffer\n");
-	dev->flags1 = 0x20	/* T_Active */
-	    | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */
-	    | ((dev->baudv >> 8) & 0x01);	/* MSB-baud */
-	xoutb(dev->flags1, REG_FLAGS1(iobase));
-
-	DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n",
-	       dev->flags1);
-
-	/* write challenge to the buffer */
-	DEBUGP(5, dev, "Write challenge to buffer: ");
-	for (i = 0; i < 4; i++) {
-		xoutb(i, REG_BUF_ADDR(iobase));
-		xoutb(dev->pts[i], REG_BUF_DATA(iobase));	/* buf data */
-#ifdef CM4000_DEBUG
-		pr_debug("0x%.2x ", dev->pts[i]);
-	}
-	pr_debug("\n");
-#else
-	}
-#endif
-
-	/* set number of bytes to write */
-	DEBUGP(5, dev, "Set number of bytes to write\n");
-	xoutb(0x04, REG_NUM_SEND(iobase));
-
-	/* Trigger CARDMAN CONTROLLER */
-	xoutb(0x50, REG_FLAGS0(iobase));
-
-	/* Monitor progress */
-	/* wait for xmit done */
-	DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n");
-
-	for (i = 0; i < 100; i++) {
-		if (inb(REG_FLAGS0(iobase)) & 0x08) {
-			DEBUGP(5, dev, "NumRecBytes is valid\n");
-			break;
-		}
-		/* can not sleep as this is in atomic context */
-		mdelay(10);
-	}
-	if (i == 100) {
-		DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting "
-		       "valid\n");
-		rc = -EIO;
-		goto exit_setprotocol;
-	}
-
-	DEBUGP(5, dev, "Reading NumRecBytes\n");
-	for (i = 0; i < 100; i++) {
-		io_read_num_rec_bytes(iobase, &num_bytes_read);
-		if (num_bytes_read >= 4) {
-			DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
-			if (num_bytes_read > 4) {
-				rc = -EIO;
-				goto exit_setprotocol;
-			}
-			break;
-		}
-		/* can not sleep as this is in atomic context */
-		mdelay(10);
-	}
-
-	/* check whether it is a short PTS reply? */
-	if (num_bytes_read == 3)
-		i = 0;
-
-	if (i == 100) {
-		DEBUGP(5, dev, "Timeout reading num_bytes_read\n");
-		rc = -EIO;
-		goto exit_setprotocol;
-	}
-
-	DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n");
-	xoutb(0x80, REG_FLAGS0(iobase));
-
-	/* Read PPS reply */
-	DEBUGP(5, dev, "Read PPS reply\n");
-	for (i = 0; i < num_bytes_read; i++) {
-		xoutb(i, REG_BUF_ADDR(iobase));
-		pts_reply[i] = inb(REG_BUF_DATA(iobase));
-	}
-
-#ifdef CM4000_DEBUG
-	DEBUGP(2, dev, "PTSreply: ");
-	for (i = 0; i < num_bytes_read; i++) {
-		pr_debug("0x%.2x ", pts_reply[i]);
-	}
-	pr_debug("\n");
-#endif	/* CM4000_DEBUG */
-
-	DEBUGP(5, dev, "Clear Tactive in Flags1\n");
-	xoutb(0x20, REG_FLAGS1(iobase));
-
-	/* Compare ptsreq and ptsreply */
-	if ((dev->pts[0] == pts_reply[0]) &&
-	    (dev->pts[1] == pts_reply[1]) &&
-	    (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) {
-		/* setcardparameter according to PPS */
-		dev->baudv = calc_baudv(dev->pts[2]);
-		set_cardparameter(dev);
-	} else if ((dev->pts[0] == pts_reply[0]) &&
-		   ((dev->pts[1] & 0xef) == pts_reply[1]) &&
-		   ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) {
-		/* short PTS reply, set card parameter to default values */
-		dev->baudv = calc_baudv(0x11);
-		set_cardparameter(dev);
-	} else
-		rc = -EIO;
-
-exit_setprotocol:
-	DEBUGP(3, dev, "<- set_protocol\n");
-	return rc;
-}
-
-static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev)
-{
-
-	/* note: statemachine is assumed to be reset */
-	if (inb(REG_FLAGS0(iobase)) & 8) {
-		clear_bit(IS_ATR_VALID, &dev->flags);
-		set_bit(IS_CMM_ABSENT, &dev->flags);
-		return 0;	/* detect CMM = 1 -> failure */
-	}
-	/* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */
-	xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase));
-	if ((inb(REG_FLAGS0(iobase)) & 8) == 0) {
-		clear_bit(IS_ATR_VALID, &dev->flags);
-		set_bit(IS_CMM_ABSENT, &dev->flags);
-		return 0;	/* detect CMM=0 -> failure */
-	}
-	/* clear detectCMM again by restoring original flags1 */
-	xoutb(dev->flags1, REG_FLAGS1(iobase));
-	return 1;
-}
-
-static void terminate_monitor(struct cm4000_dev *dev)
-{
-
-	/* tell the monitor to stop and wait until
-	 * it terminates.
-	 */<