--- /dev/null
+/* $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 <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/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
+
+#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 */
Code Review / kvmfornfv.git / blobdiff