Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 284 insertions, 317 deletions

diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index 729edcdb6da..22b9693f7c0 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -1,11 +1,16 @@
-/* Siemens Gigaset 307x driver
+/*
+ * Siemens Gigaset 307x driver
  * Common header file for all connection variants
  *
- * Written by Stefan Eilers <Eilers.Stefan@epost.de>
+ * Written by Stefan Eilers
  *        and Hansjoerg Lipp <hjlipp@web.de>
  *
- * Version: $Id: gigaset.h,v 1.97.4.26 2006/02/04 18:28:16 hjlipp Exp $
- * ===========================================================================
+ * =====================================================================
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License as
+ *	published by the Free Software Foundation; either version 2 of
+ *	the License, or (at your option) any later version.
+ * =====================================================================
  */
 
 #ifndef GIGASET_H
@@ -15,7 +20,6 @@
 #include <linux/kernel.h>
 #include <linux/compiler.h>
 #include <linux/types.h>
-#include <asm/atomic.h>
 #include <linux/spinlock.h>
 #include <linux/isdnif.h>
 #include <linux/usb.h>
@@ -27,21 +31,22 @@
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
 #include <linux/list.h>
+#include <asm/atomic.h>
 
 #define GIG_VERSION {0,5,0,0}
 #define GIG_COMPAT  {0,4,0,0}
 
-#define MAX_REC_PARAMS 10                         /* Max. number of params in response string */
-#define MAX_RESP_SIZE 512                         /* Max. size of a response string */
-#define HW_HDR_LEN 2                              /* Header size used to store ack info */
+#define MAX_REC_PARAMS 10	/* Max. number of params in response string */
+#define MAX_RESP_SIZE 512	/* Max. size of a response string */
+#define HW_HDR_LEN 2		/* Header size used to store ack info */
 
-#define MAX_EVENTS 64                          /* size of event queue */
+#define MAX_EVENTS 64		/* size of event queue */
 
 #define RBUFSIZE 8192
-#define SBUFSIZE 4096				/* sk_buff payload size */
+#define SBUFSIZE 4096		/* sk_buff payload size */
 
-#define MAX_BUF_SIZE (SBUFSIZE - 2)		/* Max. size of a data packet from LL */
-#define TRANSBUFSIZE 768			/* bytes per skb for transparent receive */
+#define TRANSBUFSIZE 768	/* bytes per skb for transparent receive */
+#define MAX_BUF_SIZE (SBUFSIZE - 2)	/* Max. size of a data packet from LL */
 
 /* compile time options */
 #define GIG_MAJOR 0
@@ -50,10 +55,7 @@
 #define GIG_RETRYCID
 #define GIG_X75
 
-#define MAX_TIMER_INDEX 1000
-#define MAX_SEQ_INDEX   1000
-
-#define GIG_TICK (HZ / 10)
+#define GIG_TICK 100		/* in milliseconds */
 
 /* timeout values (unit: 1 sec) */
 #define INIT_TIMEOUT 1
@@ -67,74 +69,89 @@
 
 #define MAXACT 3
 
-#define IFNULL(a)         if (unlikely(!(a)))
-#define IFNULLRET(a)      if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); return; }
-#define IFNULLRETVAL(a,b) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); return (b); }
-#define IFNULLCONT(a)     if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); continue; }
-#define IFNULLGOTO(a,b)   if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); goto b; }
-
 extern int gigaset_debuglevel;	/* "needs" cast to (enum debuglevel) */
 
-/* any combination of these can be given with the 'debug=' parameter to insmod, e.g.
- * 'insmod usb_gigaset.o debug=0x2c' will set DEBUG_OPEN, DEBUG_CMD and DEBUG_INTR. */
-enum debuglevel { /* up to 24 bits (atomic_t) */
+/* any combination of these can be given with the 'debug=' parameter to insmod,
+ * e.g. 'insmod usb_gigaset.o debug=0x2c' will set DEBUG_OPEN, DEBUG_CMD and
+ * DEBUG_INTR.
+ */
+enum debuglevel {
 	DEBUG_REG	  = 0x0002, /* serial port I/O register operations */
 	DEBUG_OPEN	  = 0x0004, /* open/close serial port */
 	DEBUG_INTR	  = 0x0008, /* interrupt processing */
-	DEBUG_INTR_DUMP   = 0x0010, /* Activating hexdump debug output on interrupt
-				      requests, not available as run-time option */
+	DEBUG_INTR_DUMP	  = 0x0010, /* Activating hexdump debug output on
+				       interrupt requests, not available as
+				       run-time option */
 	DEBUG_CMD	  = 0x00020, /* sent/received LL commands */
 	DEBUG_STREAM	  = 0x00040, /* application data stream I/O events */
 	DEBUG_STREAM_DUMP = 0x00080, /* application data stream content */
 	DEBUG_LLDATA	  = 0x00100, /* sent/received LL data */
-	DEBUG_INTR_0	  = 0x00200, /* serial port output interrupt processing */
+	DEBUG_INTR_0	  = 0x00200, /* serial port interrupt processing */
 	DEBUG_DRIVER	  = 0x00400, /* driver structure */
 	DEBUG_HDLC	  = 0x00800, /* M10x HDLC processing */
 	DEBUG_WRITE	  = 0x01000, /* M105 data write */
-	DEBUG_TRANSCMD    = 0x02000, /*AT-COMMANDS+RESPONSES*/
-	DEBUG_MCMD        = 0x04000, /*COMMANDS THAT ARE SENT VERY OFTEN*/
-	DEBUG_INIT	  = 0x08000, /* (de)allocation+initialization of data structures */
+	DEBUG_TRANSCMD	  = 0x02000, /* AT-COMMANDS+RESPONSES */
+	DEBUG_MCMD	  = 0x04000, /* COMMANDS THAT ARE SENT VERY OFTEN */
+	DEBUG_INIT	  = 0x08000, /* (de)allocation+initialization of data
+					structures */
 	DEBUG_LOCK	  = 0x10000, /* semaphore operations */
 	DEBUG_OUTPUT	  = 0x20000, /* output to device */
-	DEBUG_ISO         = 0x40000, /* isochronous transfers */
+	DEBUG_ISO	  = 0x40000, /* isochronous transfers */
 	DEBUG_IF	  = 0x80000, /* character device operations */
-	DEBUG_USBREQ	  = 0x100000, /* USB communication (except payload data) */
-	DEBUG_LOCKCMD     = 0x200000, /* AT commands and responses when MS_LOCKED */
+	DEBUG_USBREQ	  = 0x100000, /* USB communication (except payload
+					 data) */
+	DEBUG_LOCKCMD	  = 0x200000, /* AT commands and responses when
+					 MS_LOCKED */
 
-	DEBUG_ANY	  = 0x3fffff, /* print message if any of the others is activated */
+	DEBUG_ANY	  = 0x3fffff, /* print message if any of the others is
+					 activated */
 };
 
-#ifdef CONFIG_GIGASET_DEBUG
-#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
-//#define DEBUG_DEFAULT (DEBUG_LOCK | DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUF_IF | DEBUG_DRIVER | DEBUG_OUTPUT | DEBUG_INTR)
-#else
-#define DEBUG_DEFAULT 0
+/* missing from linux/device.h ... */
+#ifndef dev_notice
+#define dev_notice(dev, format, arg...)		\
+	dev_printk(KERN_NOTICE , dev , format , ## arg)
 #endif
 
-/* redefine syslog macros to prepend module name instead of entire source path */
-/* The space before the comma in ", ##" is needed by gcc 2.95 */
+/* Kernel message macros for situations where dev_printk and friends cannot be
+ * used for lack of reliable access to a device structure.
+ * linux/usb.h already contains these but in an obsolete form which clutters
+ * the log needlessly, and according to the USB maintainer those should be
+ * removed rather than fixed anyway.
+ */
+#undef err
 #undef info
-#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
-
-#undef notice
-#define notice(format, arg...) printk(KERN_NOTICE "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
-
 #undef warn
-#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
+#undef notice
 
-#undef err
-#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
+#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define info(format, arg...) printk(KERN_INFO KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define warn(format, arg...) printk(KERN_WARNING KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define notice(format, arg...) printk(KERN_NOTICE KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
 
-#undef dbg
 #ifdef CONFIG_GIGASET_DEBUG
-#define dbg(level, format, arg...) do { if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \
-	printk(KERN_DEBUG "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg); } while (0)
+
+#define gig_dbg(level, format, arg...) \
+	do { \
+		if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \
+			printk(KERN_DEBUG KBUILD_MODNAME ": " format "\n", \
+			       ## arg); \
+	} while (0)
+#define DEBUG_DEFAULT (DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
+
 #else
-#define dbg(level, format, arg...) do {} while (0)
+
+#define gig_dbg(level, format, arg...) do {} while (0)
+#define DEBUG_DEFAULT 0
+
 #endif
 
 void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
-                        size_t len, const unsigned char *buf, int from_user);
+			size_t len, const unsigned char *buf);
 
 /* connection state */
 #define ZSAU_NONE			0
@@ -148,13 +165,14 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
 #define ZSAU_UNKNOWN			-1
 
 /* USB control transfer requests */
-#define OUT_VENDOR_REQ			(USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
-#define IN_VENDOR_REQ			(USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
+#define OUT_VENDOR_REQ	(USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
+#define IN_VENDOR_REQ	(USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
 
 /* int-in-events 3070 */
 #define HD_B1_FLOW_CONTROL		0x80
 #define HD_B2_FLOW_CONTROL		0x81
-#define HD_RECEIVEATDATA_ACK		(0x35)		// 3070		// att: HD_RECEIVE>>AT<<DATA_ACK
+#define HD_RECEIVEATDATA_ACK		(0x35)		// 3070
+						// att: HD_RECEIVE>>AT<<DATA_ACK
 #define HD_READY_SEND_ATDATA		(0x36)		// 3070
 #define HD_OPEN_ATCHANNEL_ACK		(0x37)		// 3070
 #define HD_CLOSE_ATCHANNEL_ACK		(0x38)		// 3070
@@ -181,17 +199,18 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
 #define	HD_CLOSE_ATCHANNEL		(0x29)		// 3070
 
 /* USB frames for isochronous transfer */
-#define BAS_FRAMETIME	1		/* number of milliseconds between frames */
-#define BAS_NUMFRAMES	8		/* number of frames per URB */
-#define BAS_MAXFRAME	16		/* allocated bytes per frame */
-#define BAS_NORMFRAME	8		/* send size without flow control */
-#define BAS_HIGHFRAME	10		/* "    "    with positive flow control */
-#define BAS_LOWFRAME	5		/* "    "    with negative flow control */
-#define BAS_CORRFRAMES	4		/* flow control multiplicator */
-
-#define BAS_INBUFSIZE	(BAS_MAXFRAME * BAS_NUMFRAMES) /* size of isochronous input buffer per URB */
-#define BAS_OUTBUFSIZE	4096		/* size of common isochronous output buffer */
-#define BAS_OUTBUFPAD	BAS_MAXFRAME	/* size of pad area for isochronous output buffer */
+#define BAS_FRAMETIME	1	/* number of milliseconds between frames */
+#define BAS_NUMFRAMES	8	/* number of frames per URB */
+#define BAS_MAXFRAME	16	/* allocated bytes per frame */
+#define BAS_NORMFRAME	8	/* send size without flow control */
+#define BAS_HIGHFRAME	10	/* "    "    with positive flow control */
+#define BAS_LOWFRAME	5	/* "    "    with negative flow control */
+#define BAS_CORRFRAMES	4	/* flow control multiplicator */
+
+#define BAS_INBUFSIZE	(BAS_MAXFRAME * BAS_NUMFRAMES)
+					/* size of isoc in buf per URB */
+#define BAS_OUTBUFSIZE	4096		/* size of common isoc out buffer */
+#define BAS_OUTBUFPAD	BAS_MAXFRAME	/* size of pad area for isoc out buf */
 
 #define BAS_INURBS	3
 #define BAS_OUTURBS	3
@@ -207,40 +226,40 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
 #define AT_NUM		7
 
 /* variables in struct at_state_t */
-#define VAR_ZSAU   0
-#define VAR_ZDLE   1
-#define VAR_ZVLS   2
-#define VAR_ZCTP   3
-#define VAR_NUM    4
-
-#define STR_NMBR   0
-#define STR_ZCPN   1
-#define STR_ZCON   2
-#define STR_ZBC    3
-#define STR_ZHLC   4
-#define STR_NUM    5
-
-#define EV_TIMEOUT      -105
-#define EV_IF_VER       -106
-#define EV_PROC_CIDMODE -107
-#define EV_SHUTDOWN     -108
-#define EV_START        -110
-#define EV_STOP         -111
-#define EV_IF_LOCK      -112
-#define EV_PROTO_L2     -113
-#define EV_ACCEPT       -114
-#define EV_DIAL         -115
-#define EV_HUP          -116
-#define EV_BC_OPEN      -117
-#define EV_BC_CLOSED    -118
+#define VAR_ZSAU	0
+#define VAR_ZDLE	1
+#define VAR_ZVLS	2
+#define VAR_ZCTP	3
+#define VAR_NUM		4
+
+#define STR_NMBR	0
+#define STR_ZCPN	1
+#define STR_ZCON	2
+#define STR_ZBC		3
+#define STR_ZHLC	4
+#define STR_NUM		5
+
+#define EV_TIMEOUT	-105
+#define EV_IF_VER	-106
+#define EV_PROC_CIDMODE	-107
+#define EV_SHUTDOWN	-108
+#define EV_START	-110
+#define EV_STOP		-111
+#define EV_IF_LOCK	-112
+#define EV_PROTO_L2	-113
+#define EV_ACCEPT	-114
+#define EV_DIAL		-115
+#define EV_HUP		-116
+#define EV_BC_OPEN	-117
+#define EV_BC_CLOSED	-118
 
 /* input state */
-#define INS_command     0x0001
-#define INS_DLE_char    0x0002
-#define INS_byte_stuff  0x0004
-#define INS_have_data   0x0008
-#define INS_skip_frame  0x0010
-#define INS_DLE_command 0x0020
+#define INS_command	0x0001
+#define INS_DLE_char	0x0002
+#define INS_byte_stuff	0x0004
+#define INS_have_data	0x0008
+#define INS_skip_frame	0x0010
+#define INS_DLE_command	0x0020
 #define INS_flag_hunt	0x0040
 
 /* channel state */
@@ -248,27 +267,27 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
 #define CHS_B_UP	0x02
 #define CHS_NOTIFY_LL	0x04
 
-#define ICALL_REJECT  0
-#define ICALL_ACCEPT  1
-#define ICALL_IGNORE  2
+#define ICALL_REJECT	0
+#define ICALL_ACCEPT	1
+#define ICALL_IGNORE	2
 
 /* device state */
-#define MS_UNINITIALIZED        0
-#define MS_INIT                 1
-#define MS_LOCKED               2
-#define MS_SHUTDOWN             3
-#define MS_RECOVER              4
-#define MS_READY                5
+#define MS_UNINITIALIZED	0
+#define MS_INIT			1
+#define MS_LOCKED		2
+#define MS_SHUTDOWN		3
+#define MS_RECOVER		4
+#define MS_READY		5
 
 /* mode */
-#define M_UNKNOWN       0
-#define M_CONFIG        1
-#define M_UNIMODEM      2
-#define M_CID           3
+#define M_UNKNOWN	0
+#define M_CONFIG	1
+#define M_UNIMODEM	2
+#define M_CID		3
 
 /* start mode */
-#define SM_LOCKED       0
-#define SM_ISDN         1 /* default */
+#define SM_LOCKED	0
+#define SM_ISDN		1 /* default */
 
 struct gigaset_ops;
 struct gigaset_driver;
@@ -283,27 +302,26 @@ struct ser_bc_state;
 struct bas_bc_state;
 
 struct reply_t {
-	int	resp_code;      /* RSP_XXXX */
-	int	min_ConState;   /* <0 => ignore */
-	int	max_ConState;   /* <0 => ignore */
-	int	parameter;      /* e.g. ZSAU_XXXX <0: ignore*/
-	int	new_ConState;   /* <0 => ignore */
-	int	timeout;        /* >0 => *HZ; <=0 => TOUT_XXXX*/
-	int	action[MAXACT]; /* ACT_XXXX */
-	char *command;        /* NULL==none */
+	int	resp_code;	/* RSP_XXXX */
+	int	min_ConState;	/* <0 => ignore */
+	int	max_ConState;	/* <0 => ignore */
+	int	parameter;	/* e.g. ZSAU_XXXX <0: ignore*/
+	int	new_ConState;	/* <0 => ignore */
+	int	timeout;	/* >0 => *HZ; <=0 => TOUT_XXXX*/
+	int	action[MAXACT];	/* ACT_XXXX */
+	char	*command;	/* NULL==none */
 };
 
 extern struct reply_t gigaset_tab_cid_m10x[];
 extern struct reply_t gigaset_tab_nocid_m10x[];
 
 struct inbuf_t {
-	unsigned char           *rcvbuf;                /* usb-gigaset receive buffer */
+	unsigned char		*rcvbuf;	/* usb-gigaset receive buffer */
 	struct bc_state		*bcs;
-	struct cardstate *cs;
-	int inputstate;
-
-	atomic_t head, tail;
-	unsigned char data[RBUFSIZE];
+	struct cardstate	*cs;
+	int			inputstate;
+	atomic_t		head, tail;
+	unsigned char		data[RBUFSIZE];
 };
 
 /* isochronous write buffer structure
@@ -319,16 +337,9 @@ struct inbuf_t {
  *   if writesem <= 0, data[write..read-1] is currently being written to
  * - idle contains the byte value to repeat when the end of valid data is
  *   reached; if nextread==write (buffer contains no data to send), either the
- *   BAS_OUTBUFPAD bytes immediately before data[write] (if write>=BAS_OUTBUFPAD)
- *   or those of the pad area (if write<BAS_OUTBUFPAD) are also filled with that
- *   value
- * - optionally, the following statistics on the buffer's usage can be collected:
- *   maxfill: maximum number of bytes occupied
- *   idlefills: number of times a frame of idle bytes is prepared
- *   emptygets: number of times the buffer was empty when a data frame was requested
- *   backtoback: number of times two data packets were entered into the buffer
- *    without intervening idle flags
- *   nakedback: set if no idle flags have been inserted since the last data packet
+ *   BAS_OUTBUFPAD bytes immediately before data[write] (if
+ *   write>=BAS_OUTBUFPAD) or those of the pad area (if write<BAS_OUTBUFPAD)
+ *   are also filled with that value
  */
 struct isowbuf_t {
 	atomic_t	read;
@@ -358,34 +369,28 @@ struct isow_urbctx_t {
  * it is currently assigned a B channel
  */
 struct at_state_t {
-	struct list_head        list;
-	int                     waiting;
-	int                     getstring;
-	atomic_t		timer_index;
+	struct list_head	list;
+	int			waiting;
+	int			getstring;
+	unsigned		timer_index;
 	unsigned long		timer_expires;
 	int			timer_active;
-	unsigned int		ConState;                           /* State of connection */
-	struct reply_t          *replystruct;
-	int                     cid;
-	int                     int_var[VAR_NUM];   /* see VAR_XXXX */
-	char                    *str_var[STR_NUM];  /* see STR_XXXX */
-	unsigned                pending_commands;   /* see PC_XXXX */
-	atomic_t                seq_index;
-
-	struct cardstate    *cs;
-	struct bc_state         *bcs;
+	unsigned int		ConState;	/* State of connection */
+	struct reply_t		*replystruct;
+	int			cid;
+	int			int_var[VAR_NUM];	/* see VAR_XXXX */
+	char			*str_var[STR_NUM];	/* see STR_XXXX */
+	unsigned		pending_commands;	/* see PC_XXXX */
+	unsigned		seq_index;
+
+	struct cardstate	*cs;
+	struct bc_state		*bcs;
 };
 
 struct resp_type_t {
 	unsigned char	*response;
-	int		resp_code;           /* RSP_XXXX */
-	int		type;                /* RT_XXXX */
-};
-
-struct prot_skb {
-	atomic_t		empty;
-	struct semaphore	*sem;
-	struct sk_buff		*skb;
+	int		resp_code;	/* RSP_XXXX */
+	int		type;		/* RT_XXXX */
 };
 
 struct event_t {
@@ -398,29 +403,29 @@ struct event_t {
 
 /* This buffer holds all information about the used B-Channel */
 struct bc_state {
-	struct sk_buff *tx_skb;                        /* Current transfer buffer to modem */
-	struct sk_buff_head squeue;	               /* B-Channel send Queue */
+	struct sk_buff *tx_skb;		/* Current transfer buffer to modem */
+	struct sk_buff_head squeue;	/* B-Channel send Queue */
 
 	/* Variables for debugging .. */
-	int corrupted;                                   /* Counter for corrupted packages */
-	int trans_down;                                  /* Counter of packages (downstream) */
-	int trans_up;                                    /* Counter of packages (upstream) */
+	int corrupted;			/* Counter for corrupted packages */
+	int trans_down;			/* Counter of packages (downstream) */
+	int trans_up;			/* Counter of packages (upstream) */
 
 	struct at_state_t at_state;
 	unsigned long rcvbytes;
 
 	__u16 fcs;
 	struct sk_buff *skb;
-	int inputstate; /* see INS_XXXX */
+	int inputstate;			/* see INS_XXXX */
 
 	int channel;
 
 	struct cardstate *cs;
 
-	unsigned chstate;			/* bitmap (CHS_*) */
+	unsigned chstate;		/* bitmap (CHS_*) */
 	int ignore;
-	unsigned	proto2;			/* Layer 2 protocol (ISDN_PROTO_L2_*) */
-	char		*commands[AT_NUM]; /* see AT_XXXX */
+	unsigned proto2;		/* Layer 2 protocol (ISDN_PROTO_L2_*) */
+	char *commands[AT_NUM];		/* see AT_XXXX */
 
 #ifdef CONFIG_GIGASET_DEBUG
 	int emptycount;
@@ -428,37 +433,39 @@ struct bc_state {
 	int busy;
 	int use_count;
 
-	/* hardware drivers */
+	/* private data of hardware drivers */
 	union {
-		struct ser_bc_state *ser;		 /* private data of serial hardware driver */
-		struct usb_bc_state *usb;		 /* private data of usb hardware driver */
-		struct bas_bc_state *bas;
+		struct ser_bc_state *ser;	/* serial hardware driver */
+		struct usb_bc_state *usb;	/* usb hardware driver (m105) */
+		struct bas_bc_state *bas;	/* usb hardware driver (base) */
 	} hw;
 };
 
 struct cardstate {
 	struct gigaset_driver *driver;
 	unsigned minor_index;
+	struct device *dev;
 
 	const struct gigaset_ops *ops;
 
 	/* Stuff to handle communication */
-	//wait_queue_head_t initwait;
 	wait_queue_head_t waitqueue;
 	int waiting;
-	atomic_t mode;                       /* see M_XXXX */
-	atomic_t mstate;                     /* Modem state: see MS_XXXX */
-	                                     /* only changed by the event layer */
+	atomic_t mode;			/* see M_XXXX */
+	atomic_t mstate;		/* Modem state: see MS_XXXX */
+					/* only changed by the event layer */
 	int cmd_result;
 
 	int channels;
-	struct bc_state *bcs;                /* Array of struct bc_state */
+	struct bc_state *bcs;		/* Array of struct bc_state */
 
-	int onechannel;                      /* data and commands transmitted in one stream (M10x) */
+	int onechannel;			/* data and commands transmitted in one
+					   stream (M10x) */
 
 	spinlock_t lock;
-	struct at_state_t at_state;          /* at_state_t for cid == 0 */
-	struct list_head temp_at_states;     /* list of temporary "struct at_state_t"s without B channel */
+	struct at_state_t at_state;	/* at_state_t for cid == 0 */
+	struct list_head temp_at_states;/* list of temporary "struct
+					   at_state_t"s without B channel */
 
 	struct inbuf_t *inbuf;
 
@@ -474,58 +481,69 @@ struct cardstate {
 	unsigned fwver[4];
 	int gotfwver;
 
-	atomic_t running;                    /* !=0 if events are handled */
-	atomic_t connected;                  /* !=0 if hardware is connected */
+	unsigned running;		/* !=0 if events are handled */
+	unsigned connected;		/* !=0 if hardware is connected */
+	unsigned isdn_up;		/* !=0 after ISDN_STAT_RUN */
 
-	atomic_t cidmode;
+	unsigned cidmode;
 
-	int myid;                            /* id for communication with LL */
+	int myid;			/* id for communication with LL */
 	isdn_if iif;
 
 	struct reply_t *tabnocid;
 	struct reply_t *tabcid;
 	int cs_init;
-	int ignoreframes;                    /* frames to ignore after setting up the B channel */
-	struct semaphore sem;                /* locks this structure: */
-	                                     /*   connected is not changed, */
-	                                     /*   hardware_up is not changed, */
-	                                     /*   MState is not changed to or from MS_LOCKED */
+	int ignoreframes;		/* frames to ignore after setting up the
+					   B channel */
+	struct mutex mutex;		/* locks this structure:
+					 *   connected is not changed,
+					 *   hardware_up is not changed,
+					 *   MState is not changed to or from
+					 *   MS_LOCKED */
 
 	struct timer_list timer;
 	int retry_count;
-	int dle;                             /* !=0 if modem commands/responses are dle encoded */
-	int cur_at_seq;                      /* sequence of AT commands being processed */
-	int curchannel;                      /* channel, those commands are meant for */
-	atomic_t commands_pending;           /* flag(s) in xxx.commands_pending have been set */
-	struct tasklet_struct event_tasklet; /* tasklet for serializing AT commands. Scheduled
-	                                      *   -> for modem reponses (and incomming data for M10x)
-	                                      *   -> on timeout
-	                                      *   -> after setting bits in xxx.at_state.pending_command
-	                                      *      (e.g. command from LL) */
-	struct tasklet_struct write_tasklet; /* tasklet for serial output
-					      * (not used in base driver) */
+	int dle;			/* !=0 if modem commands/responses are
+					   dle encoded */
+	int cur_at_seq;			/* sequence of AT commands being
+					   processed */
+	int curchannel;			/* channel those commands are meant
+					   for */
+	atomic_t commands_pending;	/* flag(s) in xxx.commands_pending have
+					   been set */
+	struct tasklet_struct event_tasklet;
+					/* tasklet for serializing AT commands.
+					 * Scheduled
+					 *   -> for modem reponses (and
+					 *      incoming data for M10x)
+					 *   -> on timeout
+					 *   -> after setting bits in
+					 *      xxx.at_state.pending_command
+					 *      (e.g. command from LL) */
+	struct tasklet_struct write_tasklet;
+					/* tasklet for serial output
+					 * (not used in base driver) */
 
 	/* event queue */
 	struct event_t events[MAX_EVENTS];
-	atomic_t ev_tail, ev_head;
+	unsigned ev_tail, ev_head;
 	spinlock_t ev_lock;
 
 	/* current modem response */
 	unsigned char respdata[MAX_RESP_SIZE];
 	unsigned cbytes;
 
-	/* hardware drivers */
+	/* private data of hardware drivers */
 	union {
-		struct usb_cardstate *usb; /* private data of USB hardware driver */
-		struct ser_cardstate *ser; /* private data of serial hardware driver */
-		struct bas_cardstate *bas; /* private data of base hardware driver */
+		struct usb_cardstate *usb; /* USB hardware driver (m105) */
+		struct ser_cardstate *ser; /* serial hardware driver */
+		struct bas_cardstate *bas; /* USB hardware driver (base) */
 	} hw;
 };
 
 struct gigaset_driver {
 	struct list_head list;
-	spinlock_t lock;                       /* locks minor tables and blocked */
-	//struct semaphore sem;                /* locks this structure */
+	spinlock_t lock;		/* locks minor tables and blocked */
 	struct tty_driver *tty;
 	unsigned have_tty;
 	unsigned minor;
@@ -553,37 +571,42 @@ struct bas_bc_state {
 	struct isow_urbctx_t	isoouturbs[BAS_OUTURBS];
 	struct isow_urbctx_t	*isooutdone, *isooutfree, *isooutovfl;
 	struct isowbuf_t	*isooutbuf;
-	unsigned numsub;			/* submitted URB counter (for diagnostic messages only) */
+	unsigned numsub;		/* submitted URB counter
+					   (for diagnostic messages only) */
 	struct tasklet_struct	sent_tasklet;
 
 	/* isochronous input state */
 	spinlock_t isoinlock;
 	struct urb *isoinurbs[BAS_INURBS];
 	unsigned char isoinbuf[BAS_INBUFSIZE * BAS_INURBS];
-	struct urb *isoindone;	                /* completed isoc read URB */
-	int loststatus;				/* status of dropped URB */
-	unsigned isoinlost;			/* number of bytes lost */
-	/* state of bit unstuffing algorithm (in addition to BC_state.inputstate) */
-	unsigned seqlen;			/* number of '1' bits not yet unstuffed */
-	unsigned inbyte, inbits;		/* collected bits for next byte */
+	struct urb *isoindone;		/* completed isoc read URB */
+	int loststatus;			/* status of dropped URB */
+	unsigned isoinlost;		/* number of bytes lost */
+	/* state of bit unstuffing algorithm
+	   (in addition to BC_state.inputstate) */
+	unsigned seqlen;		/* number of '1' bits not yet
+					   unstuffed */
+	unsigned inbyte, inbits;	/* collected bits for next byte */
 	/* statistics */
-	unsigned goodbytes;			/* bytes correctly received */
-	unsigned alignerrs;			/* frames with incomplete byte at end */
-	unsigned fcserrs;			/* FCS errors */
-	unsigned frameerrs;			/* framing errors */
-	unsigned giants;			/* long frames */
-	unsigned runts;				/* short frames */
-	unsigned aborts;			/* HDLC aborts */
-	unsigned shared0s;			/* '0' bits shared between flags */
-	unsigned stolen0s;			/* '0' stuff bits also serving as leading flag bits */
+	unsigned goodbytes;		/* bytes correctly received */
+	unsigned alignerrs;		/* frames with incomplete byte at end */
+	unsigned fcserrs;		/* FCS errors */
+	unsigned frameerrs;		/* framing errors */
+	unsigned giants;		/* long frames */
+	unsigned runts;			/* short frames */
+	unsigned aborts;		/* HDLC aborts */
+	unsigned shared0s;		/* '0' bits shared between flags */
+	unsigned stolen0s;		/* '0' stuff bits also serving as
+					   leading flag bits */
 	struct tasklet_struct rcvd_tasklet;
 };
 
 struct gigaset_ops {
-	/* Called from ev-layer.c/interface.c for sending AT commands to the device */
+	/* Called from ev-layer.c/interface.c for sending AT commands to the
+	   device */
 	int (*write_cmd)(struct cardstate *cs,
-	                 const unsigned char *buf, int len,
-	                 struct tasklet_struct *wake_tasklet);
+			 const unsigned char *buf, int len,
+			 struct tasklet_struct *wake_tasklet);
 
 	/* Called from interface.c for additional device control */
 	int (*write_room)(struct cardstate *cs);
@@ -604,7 +627,7 @@ struct gigaset_ops {
 	/* Called by gigaset_freecs() for freeing bcs->hw.xxx */
 	int (*freebcshw)(struct bc_state *bcs);
 
-	/* Called by gigaset_stop() or gigaset_bchannel_down() for resetting bcs->hw.xxx */
+	/* Called by gigaset_bchannel_down() for resetting bcs->hw.xxx */
 	void (*reinitbcshw)(struct bc_state *bcs);
 
 	/* Called by gigaset_initcs() for setting up cs->hw.xxx */
@@ -613,13 +636,10 @@ struct gigaset_ops {
 	/* Called by gigaset_freecs() for freeing cs->hw.xxx */
 	void (*freecshw)(struct cardstate *cs);
 
-	///* Called by gigaset_stop() for killing URBs, shutting down the device, ...
-	//   hardwareup: ==0: don't try to shut down the device, hardware is really not accessible
-	//	       !=0: hardware still up */
-	//void (*stophw)(struct cardstate *cs, int hardwareup);
-
-	/* Called from common.c/interface.c for additional serial port control */
-	int (*set_modem_ctrl)(struct cardstate *cs, unsigned old_state, unsigned new_state);
+	/* Called from common.c/interface.c for additional serial port
+	   control */
+	int (*set_modem_ctrl)(struct cardstate *cs, unsigned old_state,
+			      unsigned new_state);
 	int (*baud_rate)(struct cardstate *cs, unsigned cflag);
 	int (*set_line_ctrl)(struct cardstate *cs, unsigned cflag);
 
@@ -639,7 +659,7 @@ struct gigaset_ops {
  * <DLE_FLAG>:  0x10
  * <EVENT>:     ((a-z)* | (A-Z)* | (0-10)*)+
  */
-#define DLE_FLAG       0x10
+#define DLE_FLAG	0x10
 
 /* ===========================================================================
  *  Functions implemented in asyncdata.c
@@ -667,7 +687,8 @@ void gigaset_isoc_input(struct inbuf_t *inbuf);
 
 /* Called from bas-gigaset.c to process a block of data
  * received through the isochronous channel */
-void gigaset_isoc_receive(unsigned char *src, unsigned count, struct bc_state *bcs);
+void gigaset_isoc_receive(unsigned char *src, unsigned count,
+			  struct bc_state *bcs);
 
 /* Called from bas-gigaset.c to put a block of data
  * into the isochronous output buffer */
@@ -703,7 +724,7 @@ static inline void gigaset_isdn_rcv_err(struct bc_state *bcs)
 	isdn_ctrl response;
 
 	/* error -> LL */
-	dbg(DEBUG_CMD, "sending L1ERR");
+	gig_dbg(DEBUG_CMD, "sending L1ERR");
 	response.driver = bcs->cs->myid;
 	response.command = ISDN_STAT_L1ERR;
 	response.arg = bcs->channel;
@@ -727,8 +748,8 @@ void gigaset_handle_modem_response(struct cardstate *cs);
  */
 
 /* initialize sysfs for device */
-void gigaset_init_dev_sysfs(struct usb_interface *interface);
-void gigaset_free_dev_sysfs(struct usb_interface *interface);
+void gigaset_init_dev_sysfs(struct cardstate *cs);
+void gigaset_free_dev_sysfs(struct cardstate *cs);
 
 /* ===========================================================================
  *  Functions implemented in common.c/gigaset.h
@@ -736,7 +757,7 @@ void gigaset_free_dev_sysfs(struct usb_interface *interface);
 
 void gigaset_bcs_reinit(struct bc_state *bcs);
 void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
-                     struct cardstate *cs, int cid);
+		     struct cardstate *cs, int cid);
 int gigaset_get_channel(struct bc_state *bcs);
 void gigaset_free_channel(struct bc_state *bcs);
 int gigaset_get_channels(struct cardstate *cs);
@@ -745,16 +766,15 @@ void gigaset_block_channels(struct cardstate *cs);
 
 /* Allocate and initialize driver structure. */
 struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
-                                          const char *procname,
-                                          const char *devname,
-                                          const char *devfsname,
-                                          const struct gigaset_ops *ops,
-                                          struct module *owner);
+					  const char *procname,
+					  const char *devname,
+					  const char *devfsname,
+					  const struct gigaset_ops *ops,
+					  struct module *owner);
 
 /* Deallocate driver structure. */
 void gigaset_freedriver(struct gigaset_driver *drv);
 void gigaset_debugdrivers(void);
-struct cardstate *gigaset_get_cs_by_minor(unsigned minor);
 struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty);
 struct cardstate *gigaset_get_cs_by_id(int id);
 
@@ -763,7 +783,8 @@ struct cardstate *gigaset_getunassignedcs(struct gigaset_driver *drv);
 void gigaset_unassign(struct cardstate *cs);
 void gigaset_blockdriver(struct gigaset_driver *drv);
 
-/* Allocate and initialize card state. Calls hardware dependent gigaset_init[b]cs(). */
+/* Allocate and initialize card state. Calls hardware dependent
+   gigaset_init[b]cs(). */
 struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
 				 int onechannel, int ignoreframes,
 				 int cidmode, const char *modulename);
@@ -788,8 +809,8 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb);
  * ptr must be kmalloc()ed (and not be freed by the caller).
  */
 struct event_t *gigaset_add_event(struct cardstate *cs,
-                                  struct at_state_t *at_state, int type,
-                                  void *ptr, int parameter, void *arg);
+				  struct at_state_t *at_state, int type,
+				  void *ptr, int parameter, void *arg);
 
 /* Called on CONFIG1 command from frontend. */
 int gigaset_enterconfigmode(struct cardstate *cs); //0: success <0: errorcode
@@ -799,7 +820,7 @@ static inline void gigaset_schedule_event(struct cardstate *cs)
 {
 	unsigned long flags;
 	spin_lock_irqsave(&cs->lock, flags);
-	if (atomic_read(&cs->running))
+	if (cs->running)
 		tasklet_schedule(&cs->event_tasklet);
 	spin_unlock_irqrestore(&cs->lock, flags);
 }
@@ -810,7 +831,7 @@ static inline void gigaset_bchannel_down(struct bc_state *bcs)
 {
 	gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_CLOSED, NULL, 0, NULL);
 
-	dbg(DEBUG_CMD, "scheduling BC_CLOSED");
+	gig_dbg(DEBUG_CMD, "scheduling BC_CLOSED");
 	gigaset_schedule_event(bcs->cs);
 }
 
@@ -820,36 +841,19 @@ static inline void gigaset_bchannel_up(struct bc_state *bcs)
 {
 	gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_OPEN, NULL, 0, NULL);
 
-	dbg(DEBUG_CMD, "scheduling BC_OPEN");
+	gig_dbg(DEBUG_CMD, "scheduling BC_OPEN");
 	gigaset_schedule_event(bcs->cs);
 }
 
 /* handling routines for sk_buff */
 /* ============================= */
 
-/* private version of __skb_put()
- * append 'len' bytes to the content of 'skb', already knowing that the
- * existing buffer can accomodate them
- * returns a pointer to the location where the new bytes should be copied to
- * This function does not take any locks so it must be called with the
- * appropriate locks held only.
- */
-static inline unsigned char *gigaset_skb_put_quick(struct sk_buff *skb,
-                                                   unsigned int len)
-{
-	unsigned char *tmp = skb->tail;
-	/*SKB_LINEAR_ASSERT(skb);*/		/* not needed here */
-	skb->tail += len;
-	skb->len += len;
-	return tmp;
-}
-
 /* pass received skb to LL
  * Warning: skb must not be accessed anymore!
  */
 static inline void gigaset_rcv_skb(struct sk_buff *skb,
-                                   struct cardstate *cs,
-                                   struct bc_state *bcs)
+				   struct cardstate *cs,
+				   struct bc_state *bcs)
 {
 	cs->iif.rcvcallb_skb(cs->myid, bcs->channel, skb);
 	bcs->trans_down++;
@@ -859,8 +863,8 @@ static inline void gigaset_rcv_skb(struct sk_buff *skb,
  * Warning: skb must not be accessed anymore!
  */
 static inline void gigaset_rcv_error(struct sk_buff *procskb,
-                                     struct cardstate *cs,
-                                     struct bc_state *bcs)
+				     struct cardstate *cs,
+				     struct bc_state *bcs)
 {
 	if (procskb)
 		dev_kfree_skb(procskb);
@@ -877,46 +881,9 @@ static inline void gigaset_rcv_error(struct sk_buff *procskb,
 /* bitwise byte inversion table */
 extern __u8 gigaset_invtab[];	/* in common.c */
 
-
 /* append received bytes to inbuf */
-static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
-                                     const unsigned char *src,
-                                     unsigned numbytes)
-{
-	unsigned n, head, tail, bytesleft;
-
-	dbg(DEBUG_INTR, "received %u bytes", numbytes);
-
-	if (!numbytes)
-		return 0;
-
-	bytesleft = numbytes;
-	tail = atomic_read(&inbuf->tail);
-	head = atomic_read(&inbuf->head);
-	dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
-
-	while (bytesleft) {
-		if (head > tail)
-			n = head - 1 - tail;
-		else if (head == 0)
-			n = (RBUFSIZE-1) - tail;
-		else
-			n = RBUFSIZE - tail;
-		if (!n) {
-			err("buffer overflow (%u bytes lost)", bytesleft);
-			break;
-		}
-		if (n > bytesleft)
-			n = bytesleft;
-		memcpy(inbuf->data + tail, src, n);
-		bytesleft -= n;
-		tail = (tail + n) % RBUFSIZE;
-		src += n;
-	}
-	dbg(DEBUG_INTR, "setting tail to %u", tail);
-	atomic_set(&inbuf->tail, tail);
-	return numbytes != bytesleft;
-}
+int gigaset_fill_inbuf(struct inbuf_t *inbuf, const unsigned char *src,
+		       unsigned numbytes);
 
 /* ===========================================================================
  *  Functions implemented in interface.c
@@ -924,7 +891,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 
 /* initialize interface */
 void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
-                           const char *devname, const char *devfsname);
+			   const char *devname, const char *devfsname);
 /* release interface */
 void gigaset_if_freedriver(struct gigaset_driver *drv);
 /* add minor */
@@ -933,6 +900,6 @@ void gigaset_if_init(struct cardstate *cs);
 void gigaset_if_free(struct cardstate *cs);
 /* device received data */
 void gigaset_if_receive(struct cardstate *cs,
-                        unsigned char *buffer, size_t len);
+			unsigned char *buffer, size_t len);
 
 #endif