staging: i4l: delete the whole thing

It's now 2017, and a new LTS kernel has been chosen, so let's do what we
said we would do in the TODO file and delete this code.  If it's still
needed, and a maintainer steps up to take it over, we will easily revert
it.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/Kconfig

@@ -96,8 +96,6 @@ source "drivers/staging/wilc1000/Kconfig"
 
 source "drivers/staging/most/Kconfig"
 
-source "drivers/staging/i4l/Kconfig"
-
 source "drivers/staging/ks7010/Kconfig"
 
 source "drivers/staging/greybus/Kconfig"

drivers/staging/Makefile

@@ -37,7 +37,6 @@ obj-$(CONFIG_FB_TFT)		+= fbtft/
 obj-$(CONFIG_FSL_MC_BUS)	+= fsl-mc/
 obj-$(CONFIG_WILC1000)		+= wilc1000/
 obj-$(CONFIG_MOST)		+= most/
-obj-$(CONFIG_ISDN_I4L)		+= i4l/
 obj-$(CONFIG_KS7010)		+= ks7010/
 obj-$(CONFIG_GREYBUS)		+= greybus/
 obj-$(CONFIG_BCM2835_VCHIQ)	+= vc04_services/

drivers/staging/i4l/Documentation/README.act2000

-$Id: README.act2000,v 1.3 2000/08/06 09:22:51 armin Exp $
-
-This document describes the ACT2000 driver for the
-IBM Active 2000 ISDN card.
-
-There are 3 Types of this card available. A ISA-, MCA-, and PCMCIA-Bus
-Version. Currently, only the ISA-Bus version of the card is supported.
-However MCA and PCMCIA will follow soon.
-
-The ISA-Bus Version uses 8 IO-ports. The base port address has to be set
-manually using the DIP switches.
-
-Setting up the DIP switches for the IBM Active 2000 ISDN card:
-
-	 Note: S5 and S6 always set off!
-
-     S1  S2  S3  S4  Base-port
-     on  on  on  on  0x0200 (Factory default)
-     off on  on  on  0x0240 
-     on  off on  on  0x0280 
-     off off on  on  0x02c0 
-     on  on  off on  0x0300 
-     off on  off on  0x0340 
-     on  off off on  0x0380 
-     on  on  on  off 0xcfe0
-     off on  on  off 0xcfa0 
-     on  off on  off 0xcf60 
-     off off on  off 0xcf20 
-     on  on  off off 0xcee0 
-     off on  off off 0xcea0 
-     on  off off off 0xce60 
-     off off off off Card disabled 
-
-IRQ is configured by software. Possible values are:
-
-  3, 5, 7, 10, 11, 12, 15 and none (polled mode)
-
-
-The ACT2000 driver may either be built into the kernel or as a module.
-Initialization depends on how the driver is built:
-
-Driver built into the kernel:
-
-  The ACT2000 driver can be configured using the commandline-feature while
-  loading the kernel with LILO or LOADLIN. It accepts the following syntax:
-
-  act2000=b,p,i[,idstring]
-
-  where
-
-    b = Bus-Type      (1=ISA, 2=MCA, 3=PCMCIA)
-    p = portbase      (-1 means autoprobe)
-    i = Interrupt     (-1 means use next free IRQ, 0 means polled mode)
-
-  The idstring is an arbitrary string used for referencing the card
-  by the actctrl tool later.
-
-  Defaults used, when no parameters given at all:
-
-    1,-1,-1,""
-
-  which means: Autoprobe for an ISA card, use next free IRQ, let the
-  ISDN linklevel fill the IdString (usually "line0" for the first card).
- 
-  If you like to use more than one card, you can use the program
-  "actctrl" from the utility-package to configure additional cards.
-
-  Using the "actctrl"-utility, portbase and irq can also be changed
-  during runtime. The D-channel protocol is configured by the "dproto"
-  option of the "actctrl"-utility after loading the firmware into the
-  card's memory using the "actctrl"-utility.
-
-Driver built as module:
-
-  The module act2000.o can be configured during modprobe (insmod) by
-  appending its parameters to the modprobe resp. insmod commandline.
-  The following syntax is accepted:
-
-    act_bus=b act_port=p act_irq=i act_id=idstring
-
-  where b, p, i and idstring have the same meanings as the parameters
-  described for the builtin version above.
-
-  Using the "actctrl"-utility, the same features apply to the modularized
-  version as to the kernel-builtin one. (i.e. loading of firmware and
-  configuring the D-channel protocol)
-
-Loading the firmware into the card:
-
-  The firmware is supplied together with the isdn4k-utils package. It
-  can be found in the subdirectory act2000/firmware/
-
-  Assuming you have installed the utility-package correctly, the firmware
-  will be downloaded into the card using the following command:
-
-    actctrl -d idstring load /etc/isdn/bip11.btl
-
-  where idstring is the Name of the card, given during insmod-time or
-  (for kernel-builtin driver) on the kernel commandline. If only one
-  ISDN card is used, the -d isdstrin may be omitted.
-
-  For further documentation (adding more IBM Active 2000 cards), refer to
-  the manpage actctrl.8 which is included in the isdn4k-utils package.
-

drivers/staging/i4l/Documentation/README.icn

-$Id: README.icn,v 1.7 2000/08/06 09:22:51 armin Exp $
-
-You can get the ICN-ISDN-card from:
-
-Thinking Objects Software GmbH
-Versbacher Röthe 159
-97078 Würzburg
-Tel: +49 931 2877950
-Fax: +49 931 2877951
-
-email info@think.de
-WWW   http:/www.think.de
-
-
-The card communicates with the PC by two interfaces:
-  1. A range of 4 successive port-addresses, whose base address can be 
-     configured with the switches.
-  2. A memory window with 16KB-256KB size, which can be setup in 16k steps
-     over the whole range of 16MB. Isdn4linux only uses a 16k window.
-     The base address of the window can be configured when loading
-     the lowlevel-module (see README). If using more than one card,
-     all cards are mapped to the same window and activated as needed.
-
-Setting up the IO-address dipswitches for the ICN-ISDN-card:
-
-  Two types of cards exist, one with dip-switches and one with
-  hook-switches.
-
-  1. Setting for the card with hook-switches:
-
-     (0 = switch closed, 1 = switch open)
-
-     S3 S2 S1  Base-address
-      0  0  0  0x300
-      0  0  1  0x310
-      0  1  0  0x320 (Default for isdn4linux)
-      0  1  1  0x330
-      1  0  0  0x340
-      1  0  1  0x350
-      1  1  0  0x360
-      1  1  1  NOT ALLOWED!
-    
-  2. Setting for the card with dip-switches:
-
-     (0 = switch closed, 1 = switch open)
-
-     S1 S2 S3 S4  Base-Address
-      0  0  0  0  0x300
-      0  0  0  1  0x310
-      0  0  1  0  0x320 (Default for isdn4linux)
-      0  0  1  1  0x330
-      0  1  0  0  0x340
-      0  1  0  1  0x350
-      0  1  1  0  0x360
-      0  1  1  1  NOT ALLOWED!
-      1  0  0  0  0x308
-      1  0  0  1  0x318
-      1  0  1  0  0x328
-      1  0  1  1  0x338
-      1  1  0  0  0x348
-      1  1  0  1  0x358
-      1  1  1  0  0x368
-      1  1  1  1  NOT ALLOWED!
-
-The ICN driver may be built into the kernel or as a module. Initialization
-depends on how the driver is built:
-
-Driver built into the kernel:
-
-  The ICN driver can be configured using the commandline-feature while
-  loading the kernel with LILO or LOADLIN. It accepts the following syntax:
-
-  icn=p,m[,idstring1[,idstring2]]
-
-  where
-
-    p = portbase      (default: 0x320)
-    m = shared memory (default: 0xd0000)
-
-  When using the ICN double card (4B), you MUST define TWO idstrings.
-  idstring must start with a character! There is no way for the driver
-  to distinguish between a 2B and 4B type card. Therefore, by supplying
-  TWO idstrings, you tell the driver that you have a 4B installed.
-  
-  If you like to use more than one card, you can use the program
-  "icnctrl" from the utility-package to configure additional cards.
-  You need to configure shared memory only once, since the icn-driver
-  maps all cards into the same address-space.
-
-  Using the "icnctrl"-utility, portbase and shared memory can also be
-  changed during runtime.
-
-  The D-channel protocol is configured by loading different firmware
-  into the card's memory using the "icnctrl"-utility.
-
-
-Driver built as module:
-
-  The module icn.o can be configured during "insmod'ing" it by
-  appending its parameters to the insmod-commandline. The following
-  syntax is accepted:
-
-    portbase=p membase=m icn_id=idstring [icn_id2=idstring2]
-
-  where p, m, idstring1 and idstring2 have the same meanings as the
-  parameters described for the kernel-version above.
-      
-  When using the ICN double card (4B), you MUST define TWO idstrings.
-  idstring must start with a character! There is no way for the driver
-  to distinguish between a 2B and 4B type card. Therefore, by supplying
-  TWO idstrings, you tell the driver that you have a 4B installed.
-  
-  Using the "icnctrl"-utility, the same features apply to the modularized
-  version like to the kernel-builtin one.
-
-  The D-channel protocol is configured by loading different firmware
-  into the card's memory using the "icnctrl"-utility.
-
-Loading the firmware into the card:
-
-  The firmware is supplied together with the isdn4k-utils package. It
-  can be found in the subdirectory icnctrl/firmware/
-
-  There are 3 files:
-
-    loadpg.bin   - Image of the bootstrap loader.
-    pc_1t_ca.bin - Image of firmware for german 1TR6 protocol.
-    pc_eu_ca.bin - Image if firmware for EDSS1 (Euro-ISDN) protocol.
-
-  Assuming you have installed the utility-package correctly, the firmware
-  will be downloaded into the 2B-card using the following command:
-
-    icnctrl -d Idstring load /etc/isdn/loadpg.bin /etc/isdn/pc_XX_ca.bin
-
-  where XX is either "1t" or "eu", depending on the D-Channel protocol
-  used on your S0-bus and Idstring is the Name of the card, given during
-  insmod-time or (for kernel-builtin driver) on the kernel commandline.
-
-  To load a 4B-card, the same command is used, except a second firmware
-  file is appended to the commandline of icnctrl.
-
-  -> After downloading firmware, the two LEDs at the back cover of the card
-     (ICN-4B: 4 LEDs) must be blinking intermittently now. If a connection
-     is up, the corresponding led is lit continuously.
-
-  For further documentation (adding more ICN-cards), refer to the manpage
-  icnctrl.8 which is included in the isdn4k-utils package.
-

drivers/staging/i4l/Documentation/README.pcbit

-------------------------------------------------------------------------------
- README file for the PCBIT-D Device Driver.
-------------------------------------------------------------------------------
-
-The PCBIT is a Euro ISDN adapter manufactured in Portugal by Octal and
-developed in cooperation with Portugal Telecom and Inesc.
-The driver interfaces with the standard kernel isdn facilities
-originally developed by Fritz Elfert in the isdn4linux project.
-
-The common versions of the pcbit board require a firmware that is 
-distributed (and copyrighted) by the manufacturer. To load this
-firmware you need "pcbitctl" available on the standard isdn4k-utils
-package or in the pcbit package available in:
-
-ftp://ftp.di.fc.ul.pt/pub/systems/Linux/isdn
-
-Known Limitations:
-
-- The board reset procedure is at the moment incorrect and will only
-allow you to load the firmware after a hard reset.
-
-- Only HDLC in B-channels is supported at the moment. There is no
-current support for X.25 in B or D channels nor LAPD in B
-channels. The main reason is that these two other protocol modes have,
-to my knowledge, very little use. If you want to see them implemented
-*do* send me a mail.
-
-- The driver often triggers errors in the board that I and the
-manufacturer believe to be caused by bugs in the firmware. The current
-version includes several procedures for error recovery that should
-allow normal operation. Plans for the future include cooperation with
-the manufacturer in order to solve this problem.
-
-Information/hints/help can be obtained in the linux isdn
-mailing list (isdn4linux@listserv.isdn4linux.de) or directly from me.
-
-regards,
-  Pedro.
-		
-<roque@di.fc.ul.pt>

drivers/staging/i4l/Kconfig

-#
-# Old ISDN4Linux config
-#
-menu "Old ISDN4Linux (deprecated)"
-	depends on ISDN_I4L
-
-source "drivers/staging/i4l/icn/Kconfig"
-
-source "drivers/staging/i4l/pcbit/Kconfig"
-
-source "drivers/staging/i4l/act2000/Kconfig"
-
-endmenu

drivers/staging/i4l/Makefile

-# Makefile for the old ISDN I4L subsystem and device drivers.
-
-obj-$(CONFIG_ISDN_DRV_ICN)		+= icn/
-obj-$(CONFIG_ISDN_DRV_PCBIT)		+= pcbit/
-obj-$(CONFIG_ISDN_DRV_ACT2000)		+= act2000/

drivers/staging/i4l/TODO

-* The icn, pcbit and act2000 drivers are dead, remove them in 2017
-  after another longterm kernel has been released, just in the
-  unlikely case someone still has this hardware.

drivers/staging/i4l/act2000/Kconfig

-config ISDN_DRV_ACT2000
-	tristate "IBM Active 2000 support"
-	depends on ISA
-	help
-	  Say Y here if you have an IBM Active 2000 ISDN card. In order to use
-	  this card, additional firmware is necessary, which has to be loaded
-	  into the card using a utility which is part of the latest
-	  isdn4k-utils package. Please read the file
-	  <file:Documentation/isdn/README.act2000> for more information.

drivers/staging/i4l/act2000/Makefile

-# Makefile for the act2000 ISDN device driver
-
-# Each configuration option enables a list of files.
-
-obj-$(CONFIG_ISDN_DRV_ACT2000)	+= act2000.o
-
-# Multipart objects.
-
-act2000-y			:= module.o capi.o act2000_isa.o

drivers/staging/i4l/act2000/act2000.h

-/* $Id: act2000.h,v 1.8.6.3 2001/09/23 22:24:32 kai Exp $
- *
- * ISDN lowlevel-module for the IBM ISDN-S0 Active 2000.
- *
- * Author       Fritz Elfert
- * Copyright    by Fritz Elfert      <fritz@isdn4linux.de>
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- * Thanks to Friedemann Baitinger and IBM Germany
- *
- */
-
-#ifndef act2000_h
-#define act2000_h
-
-#include <linux/compiler.h>
-
-#define ACT2000_IOCTL_SETPORT    1
-#define ACT2000_IOCTL_GETPORT    2
-#define ACT2000_IOCTL_SETIRQ     3
-#define ACT2000_IOCTL_GETIRQ     4
-#define ACT2000_IOCTL_SETBUS     5
-#define ACT2000_IOCTL_GETBUS     6
-#define ACT2000_IOCTL_SETPROTO   7
-#define ACT2000_IOCTL_GETPROTO   8
-#define ACT2000_IOCTL_SETMSN     9
-#define ACT2000_IOCTL_GETMSN    10
-#define ACT2000_IOCTL_LOADBOOT  11
-#define ACT2000_IOCTL_ADDCARD   12
-
-#define ACT2000_IOCTL_TEST      98
-#define ACT2000_IOCTL_DEBUGVAR  99
-
-#define ACT2000_BUS_ISA          1
-#define ACT2000_BUS_MCA          2
-#define ACT2000_BUS_PCMCIA       3
-
-/* Struct for adding new cards */
-typedef struct act2000_cdef {
-	int bus;
-	int port;
-	int irq;
-	char id[10];
-} act2000_cdef;
-
-/* Struct for downloading firmware */
-typedef struct act2000_ddef {
-	int length;             /* Length of code */
-	char __user *buffer;    /* Ptr. to code   */
-} act2000_ddef;
-
-typedef struct act2000_fwid {
-	char isdn[4];
-	char revlen[2];
-	char revision[504];
-} act2000_fwid;
-
-#if defined(__KERNEL__) || defined(__DEBUGVAR__)
-
-#ifdef __KERNEL__
-/* Kernel includes */
-
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/workqueue.h>
-#include <linux/interrupt.h>
-#include <linux/skbuff.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/major.h>
-#include <asm/io.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/ioport.h>
-#include <linux/timer.h>
-#include <linux/wait.h>
-#include <linux/delay.h>
-#include <linux/ctype.h>
-#include <linux/isdnif.h>
-
-#endif                           /* __KERNEL__ */
-
-#define ACT2000_PORTLEN        8
-
-#define ACT2000_FLAGS_RUNNING  1 /* Cards driver activated */
-#define ACT2000_FLAGS_PVALID   2 /* Cards port is valid    */
-#define ACT2000_FLAGS_IVALID   4 /* Cards irq is valid     */
-#define ACT2000_FLAGS_LOADED   8 /* Firmware loaded        */
-
-#define ACT2000_BCH            2 /* # of channels per card */
-
-/* D-Channel states */
-#define ACT2000_STATE_NULL     0
-#define ACT2000_STATE_ICALL    1
-#define ACT2000_STATE_OCALL    2
-#define ACT2000_STATE_IWAIT    3
-#define ACT2000_STATE_OWAIT    4
-#define ACT2000_STATE_IBWAIT   5
-#define ACT2000_STATE_OBWAIT   6
-#define ACT2000_STATE_BWAIT    7
-#define ACT2000_STATE_BHWAIT   8
-#define ACT2000_STATE_BHWAIT2  9
-#define ACT2000_STATE_DHWAIT  10
-#define ACT2000_STATE_DHWAIT2 11
-#define ACT2000_STATE_BSETUP  12
-#define ACT2000_STATE_ACTIVE  13
-
-#define ACT2000_MAX_QUEUED  8000 /* 2 * maxbuff */
-
-#define ACT2000_LOCK_TX 0
-#define ACT2000_LOCK_RX 1
-
-typedef struct act2000_chan {
-	unsigned short callref;          /* Call Reference              */
-	unsigned short fsm_state;        /* Current D-Channel state     */
-	unsigned short eazmask;          /* EAZ-Mask for this Channel   */
-	short queued;                    /* User-Data Bytes in TX queue */
-	unsigned short plci;
-	unsigned short ncci;
-	unsigned char  l2prot;           /* Layer 2 protocol            */
-	unsigned char  l3prot;           /* Layer 3 protocol            */
-} act2000_chan;
-
-typedef struct msn_entry {
-	char eaz;
-	char msn[16];
-	struct msn_entry *next;
-} msn_entry;
-
-typedef struct irq_data_isa {
-	__u8           *rcvptr;
-	__u16           rcvidx;
-	__u16           rcvlen;
-	struct sk_buff *rcvskb;
-	__u8            rcvignore;
-	__u8            rcvhdr[8];
-} irq_data_isa;
-
-typedef union act2000_irq_data {
-	irq_data_isa isa;
-} act2000_irq_data;
-
-/*
- * Per card driver data
- */
-typedef struct act2000_card {
-	unsigned short port;		/* Base-port-address                */
-	unsigned short irq;		/* Interrupt                        */
-	u_char ptype;			/* Protocol type (1TR6 or Euro)     */
-	u_char bus;			/* Cardtype (ISA, MCA, PCMCIA)      */
-	struct act2000_card *next;	/* Pointer to next device struct    */
-	spinlock_t lock;		/* protect critical operations      */
-	int myid;			/* Driver-Nr. assigned by linklevel */
-	unsigned long flags;		/* Statusflags                      */
-	unsigned long ilock;		/* Semaphores for IRQ-Routines      */
-	struct sk_buff_head rcvq;	/* Receive-Message queue            */
-	struct sk_buff_head sndq;	/* Send-Message queue               */
-	struct sk_buff_head ackq;	/* Data-Ack-Message queue           */
-	u_char *ack_msg;		/* Ptr to User Data in User skb     */
-	__u16 need_b3ack;		/* Flag: Need ACK for current skb   */
-	struct sk_buff *sbuf;		/* skb which is currently sent      */
-	struct timer_list ptimer;	/* Poll timer                       */
-	struct work_struct snd_tq;	/* Task struct for xmit bh          */
-	struct work_struct rcv_tq;	/* Task struct for rcv bh           */
-	struct work_struct poll_tq;	/* Task struct for polled rcv bh    */
-	msn_entry *msn_list;
-	unsigned short msgnum;		/* Message number for sending       */
-	spinlock_t mnlock;		/* lock for msgnum                  */
-	act2000_chan bch[ACT2000_BCH];	/* B-Channel status/control         */
-	char   status_buf[256];		/* Buffer for status messages       */
-	char   *status_buf_read;
-	char   *status_buf_write;
-	char   *status_buf_end;
-	act2000_irq_data idat;		/* Data used for IRQ handler        */
-	isdn_if interface;		/* Interface to upper layer         */
-	char regname[35];		/* Name used for request_region     */
-} act2000_card;
-
-static inline void act2000_schedule_tx(act2000_card *card)
-{
-	schedule_work(&card->snd_tq);
-}
-
-static inline void act2000_schedule_rx(act2000_card *card)
-{
-	schedule_work(&card->rcv_tq);
-}
-
-static inline void act2000_schedule_poll(act2000_card *card)
-{
-	schedule_work(&card->poll_tq);
-}
-
-extern char *act2000_find_eaz(act2000_card *, char);
-
-#endif                          /* defined(__KERNEL__) || defined(__DEBUGVAR__) */
-#endif                          /* act2000_h */

drivers/staging/i4l/act2000/act2000_isa.h

-/* $Id: act2000_isa.h,v 1.4.6.1 2001/09/23 22:24:32 kai Exp $
- *
- * ISDN lowlevel-module for the IBM ISDN-S0 Active 2000 (ISA-Version).
- *
- * Author       Fritz Elfert
- * Copyright    by Fritz Elfert      <fritz@isdn4linux.de>
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- * Thanks to Friedemann Baitinger and IBM Germany
- *
- */
-
-#ifndef act2000_isa_h
-#define act2000_isa_h
-
-#define ISA_POLL_LOOP 40        /* Try to read-write before give up */
-
-typedef enum {
-	INT_NO_CHANGE = 0,      /* Do not change the Mask */
-	INT_ON = 1,             /* Set to Enable */
-	INT_OFF = 2,            /* Set to Disable */
-} ISA_INT_T;
-
-/**************************************************************************/
-/*      Configuration Register COR (RW)                                   */
-/**************************************************************************/
-/*    7    |   6    |    5   |   4    |    3   |    2   |    1   |    0   */
-/* Soft Res|  IRQM  |        IRQ Select        |   N/A  |  WAIT  |Proc err */
-/**************************************************************************/
-#define        ISA_COR             0	/* Offset for ISA config register */
-#define        ISA_COR_PERR     0x01	/* Processor Error Enabled        */
-#define        ISA_COR_WS       0x02	/* Insert Wait State if 1         */
-#define        ISA_COR_IRQOFF   0x38	/* No Interrupt                   */
-#define        ISA_COR_IRQ07    0x30	/* IRQ 7 Enable                   */
-#define        ISA_COR_IRQ05    0x28	/* IRQ 5 Enable                   */
-#define        ISA_COR_IRQ03    0x20	/* IRQ 3 Enable                   */
-#define        ISA_COR_IRQ10    0x18	/* IRQ 10 Enable                  */
-#define        ISA_COR_IRQ11    0x10	/* IRQ 11 Enable                  */
-#define        ISA_COR_IRQ12    0x08	/* IRQ 12 Enable                  */
-#define        ISA_COR_IRQ15    0x00	/* IRQ 15 Enable                  */
-#define        ISA_COR_IRQPULSE 0x40	/* 0 = Level 1 = Pulse Interrupt  */
-#define        ISA_COR_RESET    0x80	/* Soft Reset for Transputer      */
-
-/**************************************************************************/
-/*      Interrupt Source Register ISR (RO)                                */
-/**************************************************************************/
-/*    7    |   6    |    5   |   4    |    3   |    2   |    1   |    0   */
-/*   N/A   |  N/A   |   N/A  |Err sig |Ser ID  |IN Intr |Out Intr| Error  */
-/**************************************************************************/
-#define        ISA_ISR             1	/* Offset for Interrupt Register  */
-#define        ISA_ISR_ERR      0x01	/* Error Interrupt                */
-#define        ISA_ISR_OUT      0x02	/* Output Interrupt               */
-#define        ISA_ISR_INP      0x04	/* Input Interrupt                */
-#define        ISA_ISR_SERIAL   0x08	/* Read out Serial ID after Reset */
-#define        ISA_ISR_ERRSIG   0x10	/* Error Signal Input             */
-#define        ISA_ISR_ERR_MASK 0xfe    /* Mask Error Interrupt           */
-#define        ISA_ISR_OUT_MASK 0xfd    /* Mask Output Interrupt          */
-#define        ISA_ISR_INP_MASK 0xfb    /* Mask Input Interrupt           */
-
-/* Signature delivered after Reset at ISA_ISR_SERIAL (LSB first)          */
-#define        ISA_SER_ID     0x0201	/* ID for ISA Card                */
-
-/**************************************************************************/
-/*      EEPROM Register EPR (RW)                                          */
-/**************************************************************************/
-/*    7    |   6    |    5   |   4    |    3   |    2   |    1   |    0   */
-/*   N/A   |  N/A   |   N/A  |ROM Hold| ROM CS |ROM CLK | ROM IN |ROM Out */
-/**************************************************************************/
-#define        ISA_EPR             2	/* Offset for this Register       */
-#define        ISA_EPR_OUT      0x01	/* Rome Register Out (RO)         */
-#define        ISA_EPR_IN       0x02	/* Rom Register In (WR)           */
-#define        ISA_EPR_CLK      0x04	/* Rom Clock (WR)                 */
-#define        ISA_EPR_CS       0x08	/* Rom Cip Select (WR)            */
-#define        ISA_EPR_HOLD     0x10	/* Rom Hold Signal (WR)           */
-
-/**************************************************************************/
-/*      EEPROM enable Register EER (unused)                               */
-/**************************************************************************/
-#define        ISA_EER             3	/* Offset for this Register       */
-
-/**************************************************************************/
-/*      SLC Data Input SDI (RO)                                           */
-/**************************************************************************/
-#define        ISA_SDI             4	/* Offset for this Register       */
-
-/**************************************************************************/
-/*      SLC Data Output SDO (WO)                                          */
-/**************************************************************************/
-#define        ISA_SDO             5	/* Offset for this Register       */
-
-/**************************************************************************/
-/*      IMS C011 Mode 2 Input Status Register for INMOS CPU SIS (RW)      */
-/**************************************************************************/
-/*    7    |   6    |    5   |   4    |    3   |    2   |    1   |    0   */
-/*   N/A   |  N/A   |   N/A  |  N/A   |   N/A  |   N/A  |Int Ena |Data Pre */
-/**************************************************************************/
-#define        ISA_SIS             6	/* Offset for this Register       */
-#define        ISA_SIS_READY    0x01	/* If 1 : data is available       */
-#define        ISA_SIS_INT      0x02	/* Enable Interrupt for READ      */
-
-/**************************************************************************/
-/*      IMS C011 Mode 2 Output Status Register from INMOS CPU SOS (RW)    */
-/**************************************************************************/
-/*    7    |   6    |    5   |   4    |    3   |    2   |    1   |    0   */
-/*   N/A   |  N/A   |   N/A  |  N/A   |   N/A  |   N/A  |Int Ena |Out Rdy */
-/**************************************************************************/
-#define        ISA_SOS             7	/* Offset for this Register       */
-#define        ISA_SOS_READY    0x01	/* If 1 : we can write Data       */
-#define        ISA_SOS_INT      0x02	/* Enable Interrupt for WRITE     */
-
-#define        ISA_REGION          8	/* Number of Registers            */
-
-
-/* Macros for accessing ports */
-#define ISA_PORT_COR (card->port + ISA_COR)
-#define ISA_PORT_ISR (card->port + ISA_ISR)
-#define ISA_PORT_EPR (card->port + ISA_EPR)
-#define ISA_PORT_EER (card->port + ISA_EER)
-#define ISA_PORT_SDI (card->port + ISA_SDI)
-#define ISA_PORT_SDO (card->port + ISA_SDO)
-#define ISA_PORT_SIS (card->port + ISA_SIS)
-#define ISA_PORT_SOS (card->port + ISA_SOS)
-
-/* Prototypes */
-
-extern int act2000_isa_detect(unsigned short portbase);
-extern int act2000_isa_config_irq(act2000_card *card, short irq);
-extern int act2000_isa_config_port(act2000_card *card, unsigned short portbase);
-extern int act2000_isa_download(act2000_card *card, act2000_ddef __user *cb);
-extern void act2000_isa_release(act2000_card *card);
-extern void act2000_isa_receive(act2000_card *card);
-extern void act2000_isa_send(act2000_card *card);
-
-#endif                          /* act2000_isa_h */

drivers/staging/i4l/icn/Kconfig

-config ISDN_DRV_ICN
-	tristate "ICN 2B and 4B support"
-	depends on ISA
-	help
-	  This enables support for two kinds of ISDN-cards made by a German
-	  company called ICN.  2B is the standard version for a single ISDN
-	  line with two B-channels, 4B supports two ISDN lines.  For running
-	  this card, additional firmware is necessary, which has to be
-	  downloaded into the card using a utility which is distributed
-	  separately.  See <file:Documentation/isdn/README> and
-	  <file:Documentation/isdn/README.icn> for more
-	  information.

drivers/staging/i4l/icn/Makefile

-# Makefile for the icn ISDN device driver
-
-# Each configuration option enables a list of files.
-
-obj-$(CONFIG_ISDN_DRV_ICN)	+= icn.o

drivers/staging/i4l/icn/icn.h

-/* $Id: icn.h,v 1.30.6.5 2001/09/23 22:24:55 kai Exp $
- *
- * ISDN lowlevel-module for the ICN active ISDN-Card.
- *
- * Copyright 1994 by Fritz Elfert (fritz@isdn4linux.de)
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- */
-
-#ifndef icn_h
-#define icn_h
-
-#define ICN_IOCTL_SETMMIO   0
-#define ICN_IOCTL_GETMMIO   1
-#define ICN_IOCTL_SETPORT   2
-#define ICN_IOCTL_GETPORT   3
-#define ICN_IOCTL_LOADBOOT  4
-#define ICN_IOCTL_LOADPROTO 5
-#define ICN_IOCTL_LEASEDCFG 6
-#define ICN_IOCTL_GETDOUBLE 7
-#define ICN_IOCTL_DEBUGVAR  8
-#define ICN_IOCTL_ADDCARD   9
-
-/* Struct for adding new cards */
-typedef struct icn_cdef {
-	int port;
-	char id1[10];
-	char id2[10];
-} icn_cdef;
-
-#if defined(__KERNEL__) || defined(__DEBUGVAR__)
-
-#ifdef __KERNEL__
-/* Kernel includes */
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/major.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/ioport.h>
-#include <linux/timer.h>
-#include <linux/wait.h>
-#include <linux/delay.h>
-#include <linux/isdnif.h>
-
-#endif                          /* __KERNEL__ */
-
-/* some useful macros for debugging */
-#ifdef ICN_DEBUG_PORT
-#define OUTB_P(v, p) {pr_debug("icn: outb_p(0x%02x,0x%03x)\n", v, p); outb_p(v, p);}
-#else
-#define OUTB_P outb
-#endif
-
-/* Defaults for Port-Address and shared-memory */
-#define ICN_BASEADDR 0x320
-#define ICN_PORTLEN (0x04)
-#define ICN_MEMADDR 0x0d0000
-
-#define ICN_FLAGS_B1ACTIVE 1    /* B-Channel-1 is open                     */
-#define ICN_FLAGS_B2ACTIVE 2    /* B-Channel-2 is open                     */
-#define ICN_FLAGS_RUNNING  4    /* Cards driver activated                  */
-#define ICN_FLAGS_RBTIMER  8    /* cyclic scheduling of B-Channel-poll     */
-
-#define ICN_BOOT_TIMEOUT1  1000 /* Delay for Boot-download (msecs)         */
-
-#define ICN_TIMER_BCREAD (HZ / 100)	/* B-Channel poll-cycle                    */
-#define ICN_TIMER_DCREAD (HZ / 2) /* D-Channel poll-cycle                    */
-
-#define ICN_CODE_STAGE1 4096    /* Size of bootcode                        */
-#define ICN_CODE_STAGE2 65536   /* Size of protocol-code                   */
-
-#define ICN_MAX_SQUEUE 8000     /* Max. outstanding send-data (2* hw-buf.) */
-#define ICN_FRAGSIZE (250)      /* Max. size of send-fragments             */
-#define ICN_BCH 2               /* Number of supported channels per card   */
-
-/* type-definitions for accessing the mmap-io-areas */
-
-#define SHM_DCTL_OFFSET (0)     /* Offset to data-controlstructures in shm */
-#define SHM_CCTL_OFFSET (0x1d2) /* Offset to comm-controlstructures in shm */
-#define SHM_CBUF_OFFSET (0x200) /* Offset to comm-buffers in shm           */
-#define SHM_DBUF_OFFSET (0x2000)	/* Offset to data-buffers in shm           */
-
-/*
- * Layout of card's data buffers
- */
-typedef struct {
-	unsigned char length;   /* Bytecount of fragment (max 250)    */
-	unsigned char endflag;  /* 0=last frag., 0xff=frag. continued */
-	unsigned char data[ICN_FRAGSIZE];	/* The data                           */
-	/* Fill to 256 bytes */
-	char unused[0x100 - ICN_FRAGSIZE - 2];
-} frag_buf;
-
-/*
- * Layout of card's shared memory
- */
-typedef union {
-	struct {
-		unsigned char scns;	/* Index to free SendFrag.             */
-		unsigned char scnr;	/* Index to active SendFrag   READONLY */
-		unsigned char ecns;	/* Index to free RcvFrag.     READONLY */
-		unsigned char ecnr;	/* Index to valid RcvFrag              */
-		char unused[6];
-		unsigned short fuell1;	/* Internal Buf Bytecount              */
-	} data_control;
-	struct {
-		char unused[SHM_CCTL_OFFSET];
-		unsigned char iopc_i;	/* Read-Ptr Status-Queue      READONLY */
-		unsigned char iopc_o;	/* Write-Ptr Status-Queue              */
-		unsigned char pcio_i;	/* Write-Ptr Command-Queue             */
-		unsigned char pcio_o;	/* Read-Ptr Command Queue     READONLY */
-	} comm_control;
-	struct {
-		char unused[SHM_CBUF_OFFSET];
-		unsigned char pcio_buf[0x100];	/* Ring-Buffer Command-Queue           */
-		unsigned char iopc_buf[0x100];	/* Ring-Buffer Status-Queue            */
-	} comm_buffers;
-	struct {
-		char unused[SHM_DBUF_OFFSET];
-		frag_buf receive_buf[0x10];
-		frag_buf send_buf[0x10];
-	} data_buffers;
-} icn_shmem;
-
-/*
- * Per card driver data
- */
-typedef struct icn_card {
-	struct icn_card *next;  /* Pointer to next device struct    */
-	struct icn_card *other; /* Pointer to other card for ICN4B  */
-	unsigned short port;    /* Base-port-address                */
-	int myid;               /* Driver-Nr. assigned by linklevel */
-	int rvalid;             /* IO-portregion has been requested */
-	int leased;             /* Flag: This Adapter is connected  */
-				/*       to a leased line           */
-	unsigned short flags;   /* Statusflags                      */
-	int doubleS0;           /* Flag: ICN4B                      */
-	int secondhalf;         /* Flag: Second half of a doubleS0  */
-	int fw_rev;             /* Firmware revision loaded         */
-	int ptype;              /* Protocol type (1TR6 or Euro)     */
-	struct timer_list st_timer;   /* Timer for Status-Polls     */
-	struct timer_list rb_timer;   /* Timer for B-Channel-Polls  */
-	u_char rcvbuf[ICN_BCH][4096]; /* B-Channel-Receive-Buffers  */
-	int rcvidx[ICN_BCH];    /* Index for above buffers          */
-	int l2_proto[ICN_BCH];  /* Current layer-2-protocol         */
-	isdn_if interface;      /* Interface to upper layer         */
-	int iptr;               /* Index to imsg-buffer             */
-	char imsg[60];          /* Internal buf for status-parsing  */
-	char msg_buf[2048];     /* Buffer for status-messages       */
-	char *msg_buf_write;    /* Writepointer for statusbuffer    */
-	char *msg_buf_read;     /* Readpointer for statusbuffer     */
-	char *msg_buf_end;      /* Pointer to end of statusbuffer   */
-	int sndcount[ICN_BCH];  /* Byte-counters for B-Ch.-send     */
-	int xlen[ICN_BCH];      /* Byte-counters/Flags for sent-ACK */
-	struct sk_buff *xskb[ICN_BCH]; /* Current transmitted skb   */
-	struct sk_buff_head spqueue[ICN_BCH];  /* Sendqueue         */
-	char regname[35];       /* Name used for request_region     */
-	u_char xmit_lock[ICN_BCH]; /* Semaphore for pollbchan_send()*/
-	spinlock_t lock;        /* protect critical operations      */
-} icn_card;
-
-/*
- * Main driver data
- */
-typedef struct icn_dev {
-	spinlock_t devlock;     /* spinlock to protect this struct  */
-	unsigned long memaddr;	/* Address of memory mapped buffers */
-	icn_shmem __iomem *shmem;       /* Pointer to memory-mapped-buffers */
-	int mvalid;             /* IO-shmem has been requested      */
-	int channel;            /* Currently mapped channel         */
-	struct icn_card *mcard; /* Currently mapped card            */
-	int chanlock;           /* Semaphore for channel-mapping    */
-	int firstload;          /* Flag: firmware never loaded      */
-} icn_dev;
-
-typedef icn_dev *icn_devptr;
-
-#ifdef __KERNEL__
-
-static icn_card *cards = (icn_card *) 0;
-static u_char chan2bank[] = {0, 4, 8, 12};                  /* for icn_map_channel() */
-
-static icn_dev dev;
-
-#endif                          /* __KERNEL__ */
-
-/* Utility-Macros */
-
-/* Macros for accessing ports */
-#define ICN_CFG    (card->port)
-#define ICN_MAPRAM (card->port + 1)
-#define ICN_RUN    (card->port + 2)
-#define ICN_BANK   (card->port + 3)
-
-/* Return true, if there is a free transmit-buffer */
-#define sbfree (((readb(&dev.shmem->data_control.scns) + 1) & 0xf) !=	\
-		readb(&dev.shmem->data_control.scnr))
-
-/* Switch to next transmit-buffer */
-#define sbnext (writeb((readb(&dev.shmem->data_control.scns) + 1) & 0xf,	\
-		       &dev.shmem->data_control.scns))
-
-/* Shortcuts for transmit-buffer-access */
-#define sbuf_n dev.shmem->data_control.scns
-#define sbuf_d dev.shmem->data_buffers.send_buf[readb(&sbuf_n)].data
-#define sbuf_l dev.shmem->data_buffers.send_buf[readb(&sbuf_n)].length
-#define sbuf_f dev.shmem->data_buffers.send_buf[readb(&sbuf_n)].endflag
-
-/* Return true, if there is receive-data is available */
-#define rbavl  (readb(&dev.shmem->data_control.ecnr) != \
-		readb(&dev.shmem->data_control.ecns))
-
-/* Switch to next receive-buffer */
-#define rbnext (writeb((readb(&dev.shmem->data_control.ecnr) + 1) & 0xf,	\
-		       &dev.shmem->data_control.ecnr))
-
-/* Shortcuts for receive-buffer-access */
-#define rbuf_n dev.shmem->data_control.ecnr
-#define rbuf_d dev.shmem->data_buffers.receive_buf[readb(&rbuf_n)].data
-#define rbuf_l dev.shmem->data_buffers.receive_buf[readb(&rbuf_n)].length
-#define rbuf_f dev.shmem->data_buffers.receive_buf[readb(&rbuf_n)].endflag
-
-/* Shortcuts for command-buffer-access */
-#define cmd_o (dev.shmem->comm_control.pcio_o)
-#define cmd_i (dev.shmem->comm_control.pcio_i)
-
-/* Return free space in command-buffer */
-#define cmd_free ((readb(&cmd_i) >= readb(&cmd_o)) ?		\
-		  0x100 - readb(&cmd_i) + readb(&cmd_o) :	\
-		  readb(&cmd_o) - readb(&cmd_i))
-
-/* Shortcuts for message-buffer-access */
-#define msg_o (dev.shmem->comm_control.iopc_o)
-#define msg_i (dev.shmem->comm_control.iopc_i)
-
-/* Return length of Message, if avail. */
-#define msg_avail ((readb(&msg_o) > readb(&msg_i)) ?		\
-		   0x100 - readb(&msg_o) + readb(&msg_i) :	\
-		   readb(&msg_i) - readb(&msg_o))
-
-#define CID (card->interface.id)
-
-#endif                          /* defined(__KERNEL__) || defined(__DEBUGVAR__) */
-#endif                          /* icn_h */

drivers/staging/i4l/pcbit/Kconfig

-config ISDN_DRV_PCBIT
-	tristate "PCBIT-D support"
-	depends on ISA && (BROKEN || X86)
-	help
-	  This enables support for the PCBIT ISDN-card.  This card is
-	  manufactured in Portugal by Octal.  For running this card,
-	  additional firmware is necessary, which has to be downloaded into
-	  the card using a utility which is distributed separately.  See
-	  <file:Documentation/isdn/README> and
-	  <file:Documentation/isdn/README.pcbit> for more information.

drivers/staging/i4l/pcbit/Makefile

-# Makefile for the pcbit ISDN device driver
-
-# Each configuration option enables a list of files.
-
-obj-$(CONFIG_ISDN_DRV_PCBIT)	+= pcbit.o
-
-# Multipart objects.
-
-pcbit-y				:= module.o edss1.o drv.o layer2.o capi.o callbacks.o

drivers/staging/i4l/pcbit/callbacks.c

-/*
- * Callbacks for the FSM
- *
- * Copyright (C) 1996 Universidade de Lisboa
- *
- * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
- *
- * This software may be used and distributed according to the terms of
- * the GNU General Public License, incorporated herein by reference.
- */
-
-/*
- * Fix: 19981230 - Carlos Morgado <chbm@techie.com>
- * Port of Nelson Escravana's <nelson.escravana@usa.net> fix to CalledPN
- * NULL pointer dereference in cb_in_1 (originally fixed in 2.0)
- */
-
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/skbuff.h>
-
-#include <linux/io.h>
-
-#include <linux/isdnif.h>
-
-#include "pcbit.h"
-#include "layer2.h"
-#include "edss1.h"
-#include "callbacks.h"
-#include "capi.h"
-
-ushort last_ref_num = 1;
-
-/*
- *  send_conn_req
- *
- */
-
-void cb_out_1(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	      struct callb_data *cbdata)
-{
-	struct sk_buff *skb;
-	int len;
-	ushort refnum;
-
-
-#ifdef DEBUG
-	printk(KERN_DEBUG "Called Party Number: %s\n",
-	       cbdata->data.setup.CalledPN);
-#endif
-	/*
-	 * hdr - kmalloc in capi_conn_req
-	 *     - kfree   when msg has been sent
-	 */
-
-	if ((len = capi_conn_req(cbdata->data.setup.CalledPN, &skb,
-				 chan->proto)) < 0)
-	{
-		printk("capi_conn_req failed\n");
-		return;
-	}
-
-
-	refnum = last_ref_num++ & 0x7fffU;
-
-	chan->callref = 0;
-	chan->layer2link = 0;
-	chan->snum = 0;
-	chan->s_refnum = refnum;
-
-	pcbit_l2_write(dev, MSG_CONN_REQ, refnum, skb, len);
-}
-
-/*
- *  rcv CONNECT
- *  will go into ACTIVE state
- *  send CONN_ACTIVE_RESP
- *  send Select protocol request
- */
-
-void cb_out_2(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	      struct callb_data *data)
-{
-	isdn_ctrl ictl;
-	struct sk_buff *skb;
-	int len;
-	ushort refnum;
-
-	if ((len = capi_conn_active_resp(chan, &skb)) < 0)
-	{
-		printk("capi_conn_active_req failed\n");
-		return;
-	}
-
-	refnum = last_ref_num++ & 0x7fffU;
-	chan->s_refnum = refnum;
-
-	pcbit_l2_write(dev, MSG_CONN_ACTV_RESP, refnum, skb, len);
-
-
-	ictl.command = ISDN_STAT_DCONN;
-	ictl.driver = dev->id;
-	ictl.arg = chan->id;
-	dev->dev_if->statcallb(&ictl);
-
-	/* ACTIVE D-channel */
-
-	/* Select protocol  */
-
-	if ((len = capi_select_proto_req(chan, &skb, 1 /*outgoing*/)) < 0) {
-		printk("capi_select_proto_req failed\n");
-		return;
-	}
-
-	refnum = last_ref_num++ & 0x7fffU;
-	chan->s_refnum = refnum;
-
-	pcbit_l2_write(dev, MSG_SELP_REQ, refnum, skb, len);
-}
-
-
-/*
- * Incoming call received
- * inform user
- */
-
-void cb_in_1(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	     struct callb_data *cbdata)
-{
-	isdn_ctrl ictl;
-	unsigned short refnum;
-	struct sk_buff *skb;
-	int len;
-
-
-	ictl.command = ISDN_STAT_ICALL;
-	ictl.driver = dev->id;
-	ictl.arg = chan->id;
-
-	/*
-	 *  ictl.num >= strlen() + strlen() + 5
-	 */
-
-	if (cbdata->data.setup.CallingPN == NULL) {
-		printk(KERN_DEBUG "NULL CallingPN to phone; using 0\n");
-		strcpy(ictl.parm.setup.phone, "0");
-	}
-	else {
-		strcpy(ictl.parm.setup.phone, cbdata->data.setup.CallingPN);
-	}
-	if (cbdata->data.setup.CalledPN == NULL) {
-		printk(KERN_DEBUG "NULL CalledPN to eazmsn; using 0\n");
-		strcpy(ictl.parm.setup.eazmsn, "0");
-	}
-	else {
-		strcpy(ictl.parm.setup.eazmsn, cbdata->data.setup.CalledPN);
-	}
-	ictl.parm.setup.si1 = 7;
-	ictl.parm.setup.si2 = 0;
-	ictl.parm.setup.plan = 0;
-	ictl.parm.setup.screen = 0;
-
-#ifdef DEBUG
-	printk(KERN_DEBUG "statstr: %s\n", ictl.num);
-#endif
-
-	dev->dev_if->statcallb(&ictl);
-
-
-	if ((len = capi_conn_resp(chan, &skb)) < 0) {
-		printk(KERN_DEBUG "capi_conn_resp failed\n");
-		return;
-	}
-
-	refnum = last_ref_num++ & 0x7fffU;
-	chan->s_refnum = refnum;
-
-	pcbit_l2_write(dev, MSG_CONN_RESP, refnum, skb, len);
-}
-
-/*
- * user has replied
- * open the channel
- * send CONNECT message CONNECT_ACTIVE_REQ in CAPI
- */
-
-void cb_in_2(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	     struct callb_data *data)
-{
-	unsigned short refnum;
-	struct sk_buff *skb;
-	int len;
-
-	if ((len = capi_conn_active_req(chan, &skb)) < 0) {
-		printk(KERN_DEBUG "capi_conn_active_req failed\n");
-		return;
-	}
-
-
-	refnum = last_ref_num++ & 0x7fffU;
-	chan->s_refnum = refnum;
-
-	printk(KERN_DEBUG "sending MSG_CONN_ACTV_REQ\n");
-	pcbit_l2_write(dev, MSG_CONN_ACTV_REQ, refnum, skb, len);
-}
-
-/*
- * CONN_ACK arrived
- * start b-proto selection
- *
- */
-
-void cb_in_3(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	     struct callb_data *data)
-{
-	unsigned short refnum;
-	struct sk_buff *skb;
-	int len;
-
-	if ((len = capi_select_proto_req(chan, &skb, 0 /*incoming*/)) < 0)
-	{
-		printk("capi_select_proto_req failed\n");
-		return;
-	}
-
-	refnum = last_ref_num++ & 0x7fffU;
-	chan->s_refnum = refnum;
-
-	pcbit_l2_write(dev, MSG_SELP_REQ, refnum, skb, len);
-
-}
-
-
-/*
- * Received disconnect ind on active state
- * send disconnect resp
- * send msg to user
- */
-void cb_disc_1(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	       struct callb_data *data)
-{
-	struct sk_buff *skb;
-	int len;
-	ushort refnum;
-	isdn_ctrl ictl;
-
-	if ((len = capi_disc_resp(chan, &skb)) < 0) {
-		printk("capi_disc_resp failed\n");
-		return;
-	}
-
-	refnum = last_ref_num++ & 0x7fffU;
-	chan->s_refnum = refnum;
-
-	pcbit_l2_write(dev, MSG_DISC_RESP, refnum, skb, len);
-
-	ictl.command = ISDN_STAT_BHUP;
-	ictl.driver = dev->id;
-	ictl.arg = chan->id;
-	dev->dev_if->statcallb(&ictl);
-}
-
-
-/*
- *  User HANGUP on active/call proceeding state
- *  send disc.req
- */
-void cb_disc_2(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	       struct callb_data *data)
-{
-	struct sk_buff *skb;
-	int len;
-	ushort refnum;
-
-	if ((len = capi_disc_req(chan->callref, &skb, CAUSE_NORMAL)) < 0)
-	{
-		printk("capi_disc_req failed\n");
-		return;
-	}
-
-	refnum = last_ref_num++ & 0x7fffU;
-	chan->s_refnum = refnum;
-
-	pcbit_l2_write(dev, MSG_DISC_REQ, refnum, skb, len);
-}
-
-/*
- *  Disc confirm received send BHUP
- *  Problem: when the HL driver sends the disc req itself
- *           LL receives BHUP
- */
-void cb_disc_3(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	       struct callb_data *data)
-{
-	isdn_ctrl ictl;
-
-	ictl.command = ISDN_STAT_BHUP;
-	ictl.driver = dev->id;
-	ictl.arg = chan->id;
-	dev->dev_if->statcallb(&ictl);
-}
-
-void cb_notdone(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		struct callb_data *data)
-{
-}
-
-/*
- * send activate b-chan protocol
- */
-void cb_selp_1(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	       struct callb_data *data)
-{
-	struct sk_buff *skb;
-	int len;
-	ushort refnum;
-
-	if ((len = capi_activate_transp_req(chan, &skb)) < 0)
-	{
-		printk("capi_conn_activate_transp_req failed\n");
-		return;
-	}
-
-	refnum = last_ref_num++ & 0x7fffU;
-	chan->s_refnum = refnum;
-
-	pcbit_l2_write(dev, MSG_ACT_TRANSP_REQ, refnum, skb, len);
-}
-
-/*
- *  Inform User that the B-channel is available
- */
-void cb_open(struct pcbit_dev *dev, struct pcbit_chan *chan,
-	     struct callb_data *data)
-{
-	isdn_ctrl ictl;
-
-	ictl.command = ISDN_STAT_BCONN;
-	ictl.driver = dev->id;
-	ictl.arg = chan->id;
-	dev->dev_if->statcallb(&ictl);
-}

drivers/staging/i4l/pcbit/callbacks.h

-/*
- * Callbacks prototypes for FSM
- *
- * Copyright (C) 1996 Universidade de Lisboa
- *
- * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
- *
- * This software may be used and distributed according to the terms of
- * the GNU General Public License, incorporated herein by reference.
- */
-
-#ifndef CALLBACKS_H
-#define CALLBACKS_H
-
-
-extern void cb_out_1(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		     struct callb_data *data);
-
-extern void cb_out_2(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		     struct callb_data *data);
-
-extern void cb_in_1(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		    struct callb_data *data);
-extern void cb_in_2(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		    struct callb_data *data);
-extern void cb_in_3(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		    struct callb_data *data);
-
-extern void cb_disc_1(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		      struct callb_data *data);
-extern void cb_disc_2(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		      struct callb_data *data);
-extern void cb_disc_3(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		      struct callb_data *data);
-
-extern void cb_notdone(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		       struct callb_data *data);
-
-extern void cb_selp_1(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		      struct callb_data *data);
-extern void cb_open(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		    struct callb_data *data);
-
-#endif

drivers/staging/i4l/pcbit/capi.h

-/*
- * CAPI encode/decode prototypes and defines
- *
- * Copyright (C) 1996 Universidade de Lisboa
- *
- * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
- *
- * This software may be used and distributed according to the terms of
- * the GNU General Public License, incorporated herein by reference.
- */
-
-#ifndef CAPI_H
-#define CAPI_H
-
-
-#define REQ_CAUSE         0x01
-#define REQ_DISPLAY       0x04
-#define REQ_USER_TO_USER  0x08
-
-#define AppInfoMask  (REQ_CAUSE | REQ_DISPLAY | REQ_USER_TO_USER)
-
-/* Connection Setup */
-extern int capi_conn_req(const char *calledPN, struct sk_buff **buf,
-			 int proto);
-extern int capi_decode_conn_conf(struct pcbit_chan *chan, struct sk_buff *skb,
-				 int *complete);
-
-extern int capi_decode_conn_ind(struct pcbit_chan *chan, struct sk_buff *skb,
-				struct callb_data *info);
-extern int capi_conn_resp(struct pcbit_chan *chan, struct sk_buff **skb);
-
-extern int capi_conn_active_req(struct pcbit_chan *chan, struct sk_buff **skb);
-extern int capi_decode_conn_actv_conf(struct pcbit_chan *chan,
-				      struct sk_buff *skb);
-
-extern int capi_decode_conn_actv_ind(struct pcbit_chan *chan,
-				     struct sk_buff *skb);
-extern int capi_conn_active_resp(struct pcbit_chan *chan,
-				 struct sk_buff **skb);
-
-/* Data */
-extern int capi_select_proto_req(struct pcbit_chan *chan, struct sk_buff **skb,
-				 int outgoing);
-extern int capi_decode_sel_proto_conf(struct pcbit_chan *chan,
-				      struct sk_buff *skb);
-
-extern int capi_activate_transp_req(struct pcbit_chan *chan,
-				    struct sk_buff **skb);
-extern int capi_decode_actv_trans_conf(struct pcbit_chan *chan,
-				       struct sk_buff *skb);
-
-extern int capi_tdata_req(struct pcbit_chan *chan, struct sk_buff *skb);
-extern int capi_tdata_resp(struct pcbit_chan *chan, struct sk_buff **skb);
-
-/* Connection Termination */
-extern int capi_disc_req(ushort callref, struct sk_buff **skb, u_char cause);
-
-extern int capi_decode_disc_ind(struct pcbit_chan *chan, struct sk_buff *skb);
-extern int capi_disc_resp(struct pcbit_chan *chan, struct sk_buff **skb);
-
-#ifdef DEBUG
-extern int capi_decode_debug_188(u_char *hdr, ushort hdrlen);
-#endif
-
-static inline struct pcbit_chan *
-capi_channel(struct pcbit_dev *dev, struct sk_buff *skb)
-{
-	ushort callref;
-
-	callref = *((ushort *)skb->data);
-	skb_pull(skb, 2);
-
-	if (dev->b1->callref == callref)
-		return dev->b1;
-	else if (dev->b2->callref == callref)
-		return dev->b2;
-
-	return NULL;
-}
-
-#endif

drivers/staging/i4l/pcbit/edss1.c

-/*
- * DSS.1 Finite State Machine
- * base: ITU-T Rec Q.931
- *
- * Copyright (C) 1996 Universidade de Lisboa
- *
- * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
- *
- * This software may be used and distributed according to the terms of
- * the GNU General Public License, incorporated herein by reference.
- */
-
-/*
- *        TODO: complete the FSM
- *              move state/event descriptions to a user space logger
- */
-
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/skbuff.h>
-
-#include <linux/timer.h>
-#include <linux/io.h>
-
-#include <linux/isdnif.h>
-
-#include "pcbit.h"
-#include "edss1.h"
-#include "layer2.h"
-#include "callbacks.h"
-
-
-const char * const isdn_state_table[] = {
-	"Closed",
-	"Call initiated",
-	"Overlap sending",
-	"Outgoing call proceeding",
-	"NOT DEFINED",
-	"Call delivered",
-	"Call present",
-	"Call received",
-	"Connect request",
-	"Incoming call proceeding",
-	"Active",
-	"Disconnect request",
-	"Disconnect indication",
-	"NOT DEFINED",
-	"NOT DEFINED",
-	"Suspend request",
-	"NOT DEFINED",
-	"Resume request",
-	"NOT DEFINED",
-	"Release Request",
-	"NOT DEFINED",
-	"NOT DEFINED",
-	"NOT DEFINED",
-	"NOT DEFINED",
-	"NOT DEFINED",
-	"Overlap receiving",
-	"Select protocol on B-Channel",
-	"Activate B-channel protocol"
-};
-
-#ifdef DEBUG_ERRS
-static
-struct CauseValue {
-	byte nr;
-	char *descr;
-} cvlist[] = {
-	{0x01, "Unallocated (unassigned) number"},
-	{0x02, "No route to specified transit network"},
-	{0x03, "No route to destination"},
-	{0x04, "Send special information tone"},
-	{0x05, "Misdialled trunk prefix"},
-	{0x06, "Channel unacceptable"},
-	{0x07, "Channel awarded and being delivered in an established channel"},
-	{0x08, "Preemption"},
-	{0x09, "Preemption - circuit reserved for reuse"},
-	{0x10, "Normal call clearing"},
-	{0x11, "User busy"},
-	{0x12, "No user responding"},
-	{0x13, "No answer from user (user alerted)"},
-	{0x14, "Subscriber absent"},
-	{0x15, "Call rejected"},
-	{0x16, "Number changed"},
-	{0x1a, "non-selected user clearing"},
-	{0x1b, "Destination out of order"},
-	{0x1c, "Invalid number format (address incomplete)"},
-	{0x1d, "Facility rejected"},
-	{0x1e, "Response to Status enquiry"},
-	{0x1f, "Normal, unspecified"},
-	{0x22, "No circuit/channel available"},
-	{0x26, "Network out of order"},
-	{0x27, "Permanent frame mode connection out-of-service"},
-	{0x28, "Permanent frame mode connection operational"},
-	{0x29, "Temporary failure"},
-	{0x2a, "Switching equipment congestion"},
-	{0x2b, "Access information discarded"},
-	{0x2c, "Requested circuit/channel not available"},
-	{0x2e, "Precedence call blocked"},
-	{0x2f, "Resource unavailable, unspecified"},
-	{0x31, "Quality of service unavailable"},
-	{0x32, "Requested facility not subscribed"},
-	{0x35, "Outgoing calls barred within CUG"},
-	{0x37, "Incoming calls barred within CUG"},
-	{0x39, "Bearer capability not authorized"},
-	{0x3a, "Bearer capability not presently available"},
-	{0x3e, "Inconsistency in designated outgoing access information and subscriber class"},
-	{0x3f, "Service or option not available, unspecified"},
-	{0x41, "Bearer capability not implemented"},
-	{0x42, "Channel type not implemented"},
-	{0x43, "Requested facility not implemented"},
-	{0x44, "Only restricted digital information bearer capability is available"},
-	{0x4f, "Service or option not implemented"},
-	{0x51, "Invalid call reference value"},
-	{0x52, "Identified channel does not exist"},
-	{0x53, "A suspended call exists, but this call identity does not"},
-	{0x54, "Call identity in use"},
-	{0x55, "No call suspended"},
-	{0x56, "Call having the requested call identity has been cleared"},
-	{0x57, "User not member of CUG"},
-	{0x58, "Incompatible destination"},
-	{0x5a, "Non-existent CUG"},
-	{0x5b, "Invalid transit network selection"},
-	{0x5f, "Invalid message, unspecified"},
-	{0x60, "Mandatory information element is missing"},
-	{0x61, "Message type non-existent or not implemented"},
-	{0x62, "Message not compatible with call state or message type non-existent or not implemented"},
-	{0x63, "Information element/parameter non-existent or not implemented"},
-	{0x64, "Invalid information element contents"},
-	{0x65, "Message not compatible with call state"},
-	{0x66, "Recovery on timer expiry"},
-	{0x67, "Parameter non-existent or not implemented - passed on"},
-	{0x6e, "Message with unrecognized parameter discarded"},
-	{0x6f, "Protocol error, unspecified"},
-	{0x7f, "Interworking, unspecified"}
-};
-
-#endif
-
-static struct isdn_event_desc {
-	unsigned short ev;
-	char *desc;
-} isdn_event_table[] = {
-	{EV_USR_SETUP_REQ,     "CC->L3: Setup Request"},
-	{EV_USR_SETUP_RESP,    "CC->L3: Setup Response"},
-	{EV_USR_PROCED_REQ,    "CC->L3: Proceeding Request"},
-	{EV_USR_RELEASE_REQ,   "CC->L3: Release Request"},
-
-	{EV_NET_SETUP,        "NET->TE: setup "},
-	{EV_NET_CALL_PROC,    "NET->TE: call proceeding"},
-	{EV_NET_SETUP_ACK,    "NET->TE: setup acknowledge (more info needed)"},
-	{EV_NET_CONN,         "NET->TE: connect"},
-	{EV_NET_CONN_ACK,     "NET->TE: connect acknowledge"},
-	{EV_NET_DISC,         "NET->TE: disconnect indication"},
-	{EV_NET_RELEASE,      "NET->TE: release"},
-	{EV_NET_RELEASE_COMP, "NET->TE: release complete"},
-	{EV_NET_SELP_RESP,    "Board: Select B-channel protocol ack"},
-	{EV_NET_ACTV_RESP,    "Board: Activate B-channel protocol ack"},
-	{EV_TIMER,            "Timeout"},
-	{0, "NULL"}
-};
-
-char *strisdnevent(ushort ev)
-{
-	struct isdn_event_desc *entry;
-
-	for (entry = isdn_event_table; entry->ev; entry++)
-		if (entry->ev == ev)
-			break;
-
-	return entry->desc;
-}
-
-/*
- * Euro ISDN finite state machine
- */
-
-static struct fsm_timer_entry fsm_timers[] = {
-	{ST_CALL_PROC, 10},
-	{ST_DISC_REQ, 2},
-	{ST_ACTIVE_SELP, 5},
-	{ST_ACTIVE_ACTV, 5},
-	{ST_INCM_PROC, 10},
-	{ST_CONN_REQ, 2},
-	{0xff, 0}
-};
-
-static struct fsm_entry fsm_table[] = {
-/* Connect Phase */
-	/* Outgoing */
-	{ST_NULL, ST_CALL_INIT, EV_USR_SETUP_REQ, cb_out_1},
-
-	{ST_CALL_INIT, ST_OVER_SEND, EV_NET_SETUP_ACK, cb_notdone},
-	{ST_CALL_INIT, ST_CALL_PROC, EV_NET_CALL_PROC, NULL},
-	{ST_CALL_INIT, ST_NULL, EV_NET_DISC, cb_out_2},
-
-	{ST_CALL_PROC, ST_ACTIVE_SELP, EV_NET_CONN, cb_out_2},
-	{ST_CALL_PROC, ST_NULL, EV_NET_DISC, cb_disc_1},
-	{ST_CALL_PROC, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
-
-	/* Incoming */
-	{ST_NULL, ST_CALL_PRES, EV_NET_SETUP, NULL},
-
-	{ST_CALL_PRES, ST_INCM_PROC, EV_USR_PROCED_REQ, cb_in_1},
-	{ST_CALL_PRES, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
-
-	{ST_INCM_PROC, ST_CONN_REQ, EV_USR_SETUP_RESP, cb_in_2},
-	{ST_INCM_PROC, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
-
-	{ST_CONN_REQ, ST_ACTIVE_SELP, EV_NET_CONN_ACK, cb_in_3},
-
-	/* Active */
-	{ST_ACTIVE, ST_NULL, EV_NET_DISC, cb_disc_1},
-	{ST_ACTIVE, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
-	{ST_ACTIVE, ST_NULL, EV_NET_RELEASE, cb_disc_3},
-
-	/* Disconnect */
-
-	{ST_DISC_REQ, ST_NULL, EV_NET_DISC, cb_disc_1},
-	{ST_DISC_REQ, ST_NULL, EV_NET_RELEASE, cb_disc_3},
-
-	/* protocol selection */
-	{ST_ACTIVE_SELP, ST_ACTIVE_ACTV, EV_NET_SELP_RESP, cb_selp_1},
-	{ST_ACTIVE_SELP, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
-
-	{ST_ACTIVE_ACTV, ST_ACTIVE, EV_NET_ACTV_RESP, cb_open},
-	{ST_ACTIVE_ACTV, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
-
-	/* Timers */
-	{ST_CALL_PROC, ST_DISC_REQ, EV_TIMER, cb_disc_2},
-	{ST_DISC_REQ, ST_NULL, EV_TIMER, cb_disc_3},
-	{ST_ACTIVE_SELP, ST_DISC_REQ, EV_TIMER, cb_disc_2},
-	{ST_ACTIVE_ACTV, ST_DISC_REQ, EV_TIMER, cb_disc_2},
-	{ST_INCM_PROC, ST_DISC_REQ, EV_TIMER, cb_disc_2},
-	{ST_CONN_REQ, ST_CONN_REQ, EV_TIMER, cb_in_2},
-
-	{0xff, 0, 0, NULL}
-};
-
-
-static void pcbit_fsm_timer(unsigned long data)
-{
-	struct pcbit_dev *dev;
-	struct pcbit_chan *chan;
-
-	chan = (struct pcbit_chan *) data;
-
-	del_timer(&chan->fsm_timer);
-	chan->fsm_timer.function = NULL;
-
-	dev = chan2dev(chan);
-
-	if (!dev) {
-		printk(KERN_WARNING "pcbit: timer for unknown device\n");
-		return;
-	}
-
-	pcbit_fsm_event(dev, chan, EV_TIMER, NULL);
-}
-
-
-void pcbit_fsm_event(struct pcbit_dev *dev, struct pcbit_chan *chan,
-		     unsigned short event, struct callb_data *data)
-{
-	struct fsm_entry *action;
-	struct fsm_timer_entry *tentry;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->lock, flags);
-
-	for (action = fsm_table; action->init != 0xff; action++)
-		if (action->init == chan->fsm_state && action->event == event)
-			break;
-
-	if (action->init == 0xff) {
-
-		spin_unlock_irqrestore(&dev->lock, flags);
-		printk(KERN_DEBUG "fsm error: event %x on state %x\n",
-		       event, chan->fsm_state);
-		return;
-	}
-
-	if (chan->fsm_timer.function) {
-		del_timer(&chan->fsm_timer);
-		chan->fsm_timer.function = NULL;
-	}
-
-	chan->fsm_state = action->final;
-
-	pcbit_state_change(dev, chan, action->init, event, action->final);
-
-	for (tentry = fsm_timers; tentry->init != 0xff; tentry++)
-		if (tentry->init == chan->fsm_state)
-			break;
-
-	if (tentry->init != 0xff) {
-		setup_timer(&chan->fsm_timer, &pcbit_fsm_timer, (ulong)chan);
-		mod_timer(&chan->fsm_timer, jiffies + tentry->timeout * HZ);
-	}
-
-	spin_unlock_irqrestore(&dev->lock, flags);
-
-	if (action->callb)
-		action->callb(dev, chan, data);
-
-}

drivers/staging/i4l/pcbit/edss1.h

-/*
- * DSS.1 module definitions
- *
- * Copyright (C) 1996 Universidade de Lisboa
- *
- * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
- *
- * This software may be used and distributed according to the terms of
- * the GNU General Public License, incorporated herein by reference.
- */
-
-#ifndef EDSS1_H
-#define EDSS1_H
-
-/* ISDN states */
-
-#define ST_NULL      0
-#define ST_CALL_INIT 1    /* Call initiated */
-#define ST_OVER_SEND 2    /* Overlap sending - Requests More Info 4 call */
-#define ST_CALL_PROC 3    /* Call Proceeding */
-#define ST_CALL_DELV 4
-#define ST_CALL_PRES 6    /* Call Present - Received CONN.IND */
-#define ST_CALL_RECV 7    /* Alerting sent */
-#define ST_CONN_REQ  8    /* Answered - waiting 4 CONN.CONF */
-#define ST_INCM_PROC 9
-#define ST_ACTIVE    10
-#define ST_DISC_REQ  11
-#define ST_DISC_IND  12
-#define ST_SUSP_REQ  15
-#define ST_RESM_REQ  17
-#define ST_RELS_REQ  19
-#define ST_OVER_RECV 25
-
-#define ST_ACTIVE_SELP 26 /* Select protocol on B-Channel */
-#define ST_ACTIVE_ACTV 27 /* Activate B-channel protocol  */
-
-#define MAX_STATE ST_ACTIVE_ACTV
-
-#define EV_NULL               0
-#define EV_USR_SETUP_REQ      1
-#define EV_USR_SETUP_RESP     2
-#define EV_USR_PROCED_REQ     3
-#define EV_USR_RELEASE_REQ    4
-#define EV_USR_REJECT_REQ     4
-
-#define EV_NET_SETUP          16
-#define EV_NET_CALL_PROC      17
-#define EV_NET_SETUP_ACK      18
-#define EV_NET_CONN           19
-#define EV_NET_CONN_ACK       20
-
-#define EV_NET_SELP_RESP      21
-#define EV_NET_ACTV_RESP      22
-
-#define EV_NET_DISC           23
-#define EV_NET_RELEASE        24
-#define EV_NET_RELEASE_COMP   25
-
-#define EV_TIMER              26
-#define EV_ERROR              32
-
-/*
- *  Cause values
- *  only the ones we use
- */
-
-#define CAUSE_NORMAL          0x10U
-#define CAUSE_NOCHAN          0x22U
-
-struct callb_data {
-	unsigned short type;
-	union {
-		struct ConnInfo {
-			char *CalledPN;
-			char *CallingPN;
-		} setup;
-		unsigned short cause;
-	} data;
-};
-
-struct fsm_entry {
-	unsigned short init;
-	unsigned short final;
-	unsigned short event;
-	void (*callb)(struct pcbit_dev *, struct pcbit_chan *, struct callb_data*);
-};
-
-struct fsm_timer_entry {
-	unsigned short init;
-	unsigned long timeout;          /* in seconds */
-};
-
-extern const char * const isdn_state_table[];
-
-void pcbit_fsm_event(struct pcbit_dev *, struct pcbit_chan *,
-		     unsigned short event, struct callb_data *);
-char *strisdnevent(ushort ev);
-
-#endif