patch-1.3.69 linux/drivers/isdn/icn/icn.h

• Lines: 295
• Date: Mon Feb 26 12:29:22 1996
• Orig file: v1.3.68/linux/drivers/isdn/icn/icn.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.68/linux/drivers/isdn/icn/icn.h linux/drivers/isdn/icn/icn.h
@@ -0,0 +1,294 @@
+/* $Id: icn.h,v 1.12 1996/01/22 05:01:22 fritz Exp fritz $
+ *
+ * ISDN lowlevel-module for the ICN active ISDN-Card.
+ *
+ * Copyright 1994 by Fritz Elfert (fritz@wuemaus.franken.de)
+ *
+ * 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, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
+ *
+ * $Log: icn.h,v $
+ * Revision 1.12  1996/01/22 05:01:22  fritz
+ * Revert to GPL.
+ *
+ * Revision 1.11  1995/12/18  18:25:00  fritz
+ * Support for ICN-2B Cards.
+ * Change for supporting user-setable service-octet.
+ *
+ * Revision 1.10  1995/10/29  21:43:10  fritz
+ * Added support for leased lines.
+ *
+ * Revision 1.9  1995/04/23  13:42:10  fritz
+ * Added some constants for distingushing 1TR6 and DSS1
+ *
+ * Revision 1.8  1995/03/25  23:18:55  fritz
+ * Changed ICN_PORTLEN to reflect correct number of ports.
+ *
+ * Revision 1.7  1995/03/15  12:52:06  fritz
+ * Some cleanup
+ *
+ * Revision 1.6  1995/02/20  03:49:22  fritz
+ * Fixed ICN_MAX_SQUEUE to correctly reflect outstanding bytes, not number
+ * of buffers.
+ *
+ * Revision 1.5  1995/01/29  23:36:50  fritz
+ * Minor cleanup.
+ *
+ * Revision 1.4  1995/01/09  07:41:20  fritz
+ * Added GPL-Notice
+ *
+ * Revision 1.3  1995/01/04  05:14:20  fritz
+ * removed include of linux/asm/string.h for compiling with Linux 1.1.76
+ *
+ * Revision 1.2  1995/01/02  02:15:57  fritz
+ * Misc. Bugfixes
+ *
+ * Revision 1.1  1994/12/14  18:02:38  fritz
+ * Initial revision
+ *
+ */
+
+#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
+
+#if defined(__KERNEL__) || defined(__DEBUGVAR__)
+
+#ifdef __KERNEL__
+/* Kernel includes */
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/malloc.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/ioport.h>
+#include <linux/timer.h>
+#include <linux/wait.h>
+#include <linux/isdnif.h>
+
+#endif				/* __KERNEL__ */
+
+/* some useful macros for debugging */
+#ifdef ICN_DEBUG_PORT
+#define OUTB_P(v,p) {printk(KERN_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
+
+/* Macros for accessing ports */
+#define ICN_CFG    (dev->port)
+#define ICN_MAPRAM (dev->port+1)
+#define ICN_RUN    (dev->port+2)
+#define ICN_BANK   (dev->port+3)
+
+#define ICN_FLAGS_B1ACTIVE 1	/* B-Channel-1 is open                 */
+#define ICN_FLAGS_B2ACTIVE 2	/* B-Channel-2 is open                 */
+#define ICN_FLAGS_RBTIMER  8	/* cyclic scheduling of B-Channel-poll */
+
+#define ICN_BOOT_TIMEOUT1  100	/* Delay for Boot-download (jiffies)   */
+#define ICN_CHANLOCK_DELAY  10	/* Delay for Channel-mapping (jiffies) */
+
+#define ICN_TIMER_BCREAD 3	/* B-Channel poll-cycle                */
+#define ICN_TIMER_DCREAD 50	/* 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 65536	/* Max. outstanding send-data          */
+#define ICN_FRAGSIZE (250)	/* Max. size of send-fragments         */
+#define ICN_BCH 2		/* Number of supported channels        */
+
+/* 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           */
+
+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;
+
+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;
+
+/* Sendbuffer-queue-element */
+typedef struct {
+	char *next;
+	short length;
+	short size;
+	u_char *rptr;
+	u_char buffer[1];
+} pqueue;
+
+typedef struct {
+	unsigned short port;	/* Base-port-adress                 */
+	icn_shmem *shmem;	/* Pointer to memory-mapped-buffers */
+	int myid;		/* Driver-Nr. assigned by linklevel */
+	int rvalid;		/* IO-portregion has been requested */
+	int mvalid;		/* IO-shmem has been requested      */
+	int leased;		/* Flag: This Adapter is connected  */
+	/*       to a leased line           */
+	unsigned short flags;	/* Statusflags                      */
+	int doubleS0;		/* Flag: Double-S0-Card             */
+	int secondhalf;		/* Flag: Second half of a doubleS0  */
+	int ptype;		/* Protocoltype (1TR6 or Euro)      */
+	struct timer_list st_timer;	/* Timer for Status-Polls           */
+	struct timer_list rb_timer;	/* Timer for B-Channel-Polls        */
+	int channel;		/* Currently mapped Channel         */
+	int chanlock;		/* Semaphore for Channel-Mapping    */
+	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     */
+	pqueue *spqueue[ICN_BCH];	/* Pointers to start of Send-Queue  */
+#ifdef DEBUG_RCVCALLBACK
+	int akt_pending[ICN_BCH];
+	int max_pending[ICN_BCH];
+#endif
+} icn_dev;
+
+typedef icn_dev *icn_devptr;
+
+#ifdef __KERNEL__
+static icn_dev *dev = (icn_dev *) 0;
+static icn_dev *dev2 = (icn_dev *) 0;
+
+/* With modutils >= 1.1.67 Integers can be changed while loading a
+ * module. For this reason define the Port-Base an Shmem-Base as
+ * integers.
+ */
+int portbase = ICN_BASEADDR;
+int membase = ICN_MEMADDR;
+char *icn_id = "\0";
+char *icn_id2 = "\0";
+static char regname[35];	/* Name used for port/mem-registration */
+
+#endif				/* __KERNEL__ */
+
+/* Utility-Macros */
+
+/* Return true, if there is a free transmit-buffer */
+#define sbfree (((dev->shmem->data_control.scns+1) & 0xf) != \
+                dev->shmem->data_control.scnr)
+
+/* Switch to next transmit-buffer */
+#define sbnext (dev->shmem->data_control.scns = \
+               ((dev->shmem->data_control.scns+1) & 0xf))
+
+/* Shortcuts for transmit-buffer-access */
+#define sbuf_n dev->shmem->data_control.scns
+#define sbuf_d dev->shmem->data_buffers.send_buf[sbuf_n].data
+#define sbuf_l dev->shmem->data_buffers.send_buf[sbuf_n].length
+#define sbuf_f dev->shmem->data_buffers.send_buf[sbuf_n].endflag
+
+/* Return true, if there is receive-data is available */
+#define rbavl  (dev->shmem->data_control.ecnr != \
+                dev->shmem->data_control.ecns)
+
+/* Switch to next receive-buffer */
+#define rbnext (dev->shmem->data_control.ecnr = \
+               ((dev->shmem->data_control.ecnr+1) & 0xf))
+
+/* Shortcuts for receive-buffer-access */
+#define rbuf_n dev->shmem->data_control.ecnr
+#define rbuf_d dev->shmem->data_buffers.receive_buf[rbuf_n].data
+#define rbuf_l dev->shmem->data_buffers.receive_buf[rbuf_n].length
+#define rbuf_f dev->shmem->data_buffers.receive_buf[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 ((cmd_i>=cmd_o)?0x100-cmd_i+cmd_o:cmd_o-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 ((msg_o>msg_i)?0x100-msg_o+msg_i:msg_i-msg_o)
+
+#define MIN(a,b) ((a<b)?a:b)
+#define MAX(a,b) ((a>b)?a:b)
+
+/* Hopefully, a separate resource-registration-scheme for shared-memory
+ * will be introduced into the kernel. Until then, we use the normal
+ * routines, designed for port-registration.
+ */
+#define check_shmem   check_region
+#define release_shmem release_region
+#define request_shmem request_region
+
+#endif				/* defined(__KERNEL__) || defined(__DEBUGVAR__) */
+#endif				/* icn_h */