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Diffstat (limited to 'drivers/staging/dgrp/drp.h')
| -rw-r--r-- | drivers/staging/dgrp/drp.h | 693 |
1 files changed, 0 insertions, 693 deletions
diff --git a/drivers/staging/dgrp/drp.h b/drivers/staging/dgrp/drp.h deleted file mode 100644 index 4024b488eba9..000000000000 --- a/drivers/staging/dgrp/drp.h +++ /dev/null @@ -1,693 +0,0 @@ -/* - * - * Copyright 1999 Digi International (www.digi.com) - * Gene Olson <gene at digi dot com> - * James Puzzo <jamesp at digi dot com> - * Scott Kilau <scottk at digi dot com> - * - * 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, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. - * - */ - -/************************************************************************ - * Master include file for Linux Realport Driver. - ************************************************************************/ - -#ifndef __DRP_H -#define __DRP_H - -#include <linux/types.h> -#include <linux/wait.h> -#include <linux/semaphore.h> -#include <linux/tty.h> - - -#include "digirp.h" - -/************************************************************************ - * Tuning parameters. - ************************************************************************/ - -#define CHAN_MAX 64 /* Max # ports per server */ - -#define SEQ_MAX 128 /* Max # transmit sequences (2^n) */ -#define SEQ_MASK (SEQ_MAX-1) /* Sequence buffer modulus mask */ - -#define TBUF_MAX 4096 /* Size of transmit buffer (2^n) */ -#define RBUF_MAX 4096 /* Size of receive buffer (2^n) */ - -#define TBUF_MASK (TBUF_MAX-1) /* Transmit buffer modulus mask */ -#define RBUF_MASK (RBUF_MAX-1) /* Receive buffer modulus mask */ - -#define TBUF_LOW 1000 /* Transmit low water mark */ - -#define UIO_BASE 1000 /* Base for write operations */ -#define UIO_MIN 2000 /* Minimum size application buffer */ -#define UIO_MAX 8100 /* Unix I/O buffer size */ - -#define MON_MAX 65536 /* Monitor buffer size (2^n) */ -#define MON_MASK (MON_MAX-1) /* Monitor wrap mask */ - -#define DPA_MAX 65536 /* DPA buffer size (2^n) */ -#define DPA_MASK (DPA_MAX-1) /* DPA wrap mask */ -#define DPA_HIGH_WATER 58000 /* Enforce flow control when - * over this amount - */ - -#define IDLE_MAX (20 * HZ) /* Max TCP link idle time */ - -#define MAX_DESC_LEN 100 /* Maximum length of stored PS - * description - */ - -#define WRITEBUFLEN ((4096) + 4) /* 4 extra for alignment play space */ - -#define VPDSIZE 512 - -/************************************************************************ - * Minor device decoding conventions. - ************************************************************************ - * - * For Linux, the net and mon devices are handled via "proc", so we - * only have to mux the "tty" devices. Since every PortServer will - * have an individual major number, the PortServer number does not - * need to be encoded, and in fact, does not need to exist. - * - */ - -/* - * Port device decoding conventions: - * - * Device 00 - 3f 64 dial-in modem devices. (tty) - * Device 40 - 7f 64 dial-out tty devices. (cu) - * Device 80 - bf 64 dial-out printer devices. - * - * IS_PRINT(dev) This is a printer device. - * - * OPEN_CATEGORY(dev) Specifies the device category. No two - * devices of different categories may be open - * at the same time. - * - * The following require the category returned by OPEN_CATEGORY(). - * - * OPEN_WAIT_AVAIL(cat) Waits on open until the device becomes - * available. Fails if NDELAY specified. - * - * OPEN_WAIT_CARRIER(cat) Waits on open if carrier is not present. - * Succeeds if NDELAY is given. - * - * OPEN_FORCES_CARRIER(cat) Carrier is forced high on open. - * - */ - -#define PORT_NUM(dev) ((dev) & 0x3f) - -#define OPEN_CATEGORY(dev) ((((dev) & 0x80) & 0x40)) -#define IS_PRINT(dev) (((dev) & 0xff) >= 0x80) - -#define OPEN_WAIT_AVAIL(cat) (((cat) & 0x40) == 0x000) -#define OPEN_WAIT_CARRIER(cat) (((cat) & 0x40) == 0x000) -#define OPEN_FORCES_CARRIER(cat) (((cat) & 0x40) != 0x000) - - -/************************************************************************ - * Modem signal defines for 16450/16550 compatible FEP. - * set in ch_mout, ch_mflow, ch_mlast etc - ************************************************************************/ - -/* TODO : Re-verify that these modem signal definitions are correct */ - -#define DM_DTR 0x01 -#define DM_RTS 0x02 -#define DM_RTS_TOGGLE 0x04 - -#define DM_OUT1 0x04 -#define DM_OUT2 0x08 - -#define DM_CTS 0x10 -#define DM_DSR 0x20 -#define DM_RI 0x40 -#define DM_CD 0x80 /* This is the DCD flag */ - - -/************************************************************************ - * Realport Event Flags. - ************************************************************************/ - -#define EV_OPU 0x0001 /* Ouput paused by client */ -#define EV_OPS 0x0002 /* Output paused by XOFF */ -#define EV_OPX 0x0004 /* Output paused by XXOFF */ -#define EV_OPH 0x0008 /* Output paused by MFLOW */ -#define EV_IPU 0x0010 /* Input paused by client */ -#define EV_IPS 0x0020 /* Input paused by hi/low water */ -#define EV_TXB 0x0040 /* Transmit break pending */ -#define EV_TXI 0x0080 /* Transmit immediate pending */ -#define EV_TXF 0x0100 /* Transmit flow control pending */ -#define EV_RXB 0x0200 /* Break received */ - - -/************************************************************************ - * Realport CFLAGS. - ************************************************************************/ - -#define CF_CS5 0x0000 /* 5 bit characters */ -#define CF_CS6 0x0010 /* 6 bit characters */ -#define CF_CS7 0x0020 /* 7 bit characters */ -#define CF_CS8 0x0030 /* 8 bit characters */ -#define CF_CSIZE 0x0030 /* Character size */ -#define CF_CSTOPB 0x0040 /* Two stop bits */ -#define CF_CREAD 0x0080 /* Enable receiver */ -#define CF_PARENB 0x0100 /* Enable parity */ -#define CF_PARODD 0x0200 /* Odd parity */ -#define CF_HUPCL 0x0400 /* Drop DTR on close */ - - -/************************************************************************ - * Realport XFLAGS. - ************************************************************************/ - -#define XF_XPAR 0x0001 /* Enable Mark/Space Parity */ -#define XF_XMODEM 0x0002 /* Enable in-band modem signalling */ -#define XF_XCASE 0x0004 /* Convert special characters */ -#define XF_XEDATA 0x0008 /* Error data in stream */ -#define XF_XTOSS 0x0010 /* Toss IXANY characters */ -#define XF_XIXON 0x0020 /* xxon/xxoff enable */ - - -/************************************************************************ - * Realport IFLAGS. - ************************************************************************/ - -#define IF_IGNBRK 0x0001 /* Ignore input break */ -#define IF_BRKINT 0x0002 /* Break interrupt */ -#define IF_IGNPAR 0x0004 /* Ignore error characters */ -#define IF_PARMRK 0x0008 /* Error chars marked with 0xff */ -#define IF_INPCK 0x0010 /* Input parity checking enabled */ -#define IF_ISTRIP 0x0020 /* Input chars masked with 0x7F */ -#define IF_IXON 0x0400 /* Output software flow control */ -#define IF_IXANY 0x0800 /* Restart output on any char */ -#define IF_IXOFF 0x1000 /* Input software flow control */ -#define IF_DOSMODE 0x8000 /* 16450-compatible errors */ - - -/************************************************************************ - * Realport OFLAGS. - ************************************************************************/ - -#define OF_OLCUC 0x0002 /* Map lower to upper case */ -#define OF_ONLCR 0x0004 /* Map NL to CR-NL */ -#define OF_OCRNL 0x0008 /* Map CR to NL */ -#define OF_ONOCR 0x0010 /* No CR output at column 0 */ -#define OF_ONLRET 0x0020 /* Assume NL does NL/CR */ -#define OF_TAB3 0x1800 /* Tabs expand to 8 spaces */ -#define OF_TABDLY 0x1800 /* Tab delay */ - -/************************************************************************ - * Unit flag definitions for un_flag. - ************************************************************************/ - -/* These are the DIGI unit flags */ -#define UN_EXCL 0x00010000 /* Exclusive open */ -#define UN_STICKY 0x00020000 /* TTY Settings are now sticky */ -#define UN_BUSY 0x00040000 /* Some work this channel */ -#define UN_PWAIT 0x00080000 /* Printer waiting for terminal */ -#define UN_TIME 0x00100000 /* Waiting on time */ -#define UN_EMPTY 0x00200000 /* Waiting output queue empty */ -#define UN_LOW 0x00400000 /* Waiting output low water */ -#define UN_DIGI_MASK 0x00FF0000 /* Waiting output low water */ - -/* - * Definitions for async_struct (and serial_struct) flags field - * - * these are the ASYNC flags copied from serial.h - * - */ -#define UN_HUP_NOTIFY 0x0001 /* Notify getty on hangups and - * closes on the callout port - */ -#define UN_FOURPORT 0x0002 /* Set OU1, OUT2 per AST Fourport settings */ -#define UN_SAK 0x0004 /* Secure Attention Key (Orange book) */ -#define UN_SPLIT_TERMIOS 0x0008 /* Separate termios for dialin/callout */ - -#define UN_SPD_MASK 0x0030 -#define UN_SPD_HI 0x0010 /* Use 56000 instead of 38400 bps */ -#define UN_SPD_VHI 0x0020 /* Use 115200 instead of 38400 bps */ -#define UN_SPD_CUST 0x0030 /* Use user-specified divisor */ - -#define UN_SKIP_TEST 0x0040 /* Skip UART test during autoconfiguration */ -#define UN_AUTO_IRQ 0x0080 /* Do automatic IRQ during autoconfiguration */ - -#define UN_SESSION_LOCKOUT 0x0100 /* Lock out cua opens based on session */ -#define UN_PGRP_LOCKOUT 0x0200 /* Lock out cua opens based on pgrp */ -#define UN_CALLOUT_NOHUP 0x0400 /* Don't do hangups for cua device */ - -#define UN_FLAGS 0x0FFF /* Possible legal async flags */ -#define UN_USR_MASK 0x0430 /* Legal flags that non-privileged - * users can set or reset - */ - -#define UN_INITIALIZED 0x80000000 /* Serial port was initialized */ -#define UN_CALLOUT_ACTIVE 0x40000000 /* Call out device is active */ -#define UN_NORMAL_ACTIVE 0x20000000 /* Normal device is active */ -#define UN_BOOT_AUTOCONF 0x10000000 /* Autoconfigure port on bootup */ -#define UN_CLOSING 0x08000000 /* Serial port is closing */ -#define UN_CTS_FLOW 0x04000000 /* Do CTS flow control */ -#define UN_CHECK_CD 0x02000000 /* i.e., CLOCAL */ -#define UN_SHARE_IRQ 0x01000000 /* for multifunction cards */ - - -/************************************************************************ - * Structure for terminal or printer unit. struct un_struct - * - * Note that in some places the code assumes the "tty_t" is placed - * first in the structure. - ************************************************************************/ - -struct un_struct { - struct tty_struct *un_tty; /* System TTY struct */ - struct ch_struct *un_ch; /* Associated channel */ - - ushort un_open_count; /* Successful open count */ - int un_flag; /* Unit flags */ - ushort un_tbusy; /* Busy transmit count */ - - wait_queue_head_t un_open_wait; - wait_queue_head_t un_close_wait; - ushort un_type; - struct device *un_sysfs; -}; - - -/************************************************************************ - * Channel State Numbers for ch_state. - ************************************************************************/ - -/* - * The ordering is important. - * - * state <= CS_WAIT_CANCEL implies the channel is definitely closed. - * - * state >= CS_WAIT_FAIL implies the channel is definitely open. - * - * state >= CS_READY implies data is allowed on the channel. - */ - -enum dgrp_ch_state_t { - CS_IDLE = 0, /* Channel is idle */ - CS_WAIT_OPEN = 1, /* Waiting for Immediate Open Resp */ - CS_WAIT_CANCEL = 2, /* Waiting for Per/Incom Cancel Resp */ - CS_WAIT_FAIL = 3, /* Waiting for Immed Open Failure */ - CS_SEND_QUERY = 4, /* Ready to send Port Query */ - CS_WAIT_QUERY = 5, /* Waiting for Port Query Response */ - CS_READY = 6, /* Ready to accept commands and data */ - CS_SEND_CLOSE = 7, /* Ready to send Close Request */ - CS_WAIT_CLOSE = 8 /* Waiting for Close Response */ -}; - -/************************************************************************ - * Device flag definitions for ch_flag. - ************************************************************************/ - -/* - * Note that the state of the two carrier based flags is key. When - * we check for carrier state transitions, we look at the current - * physical state of the DCD line and compare it with PHYS_CD (which - * was the state the last time we checked), and we also determine - * a new virtual state (composite of the physical state, FORCEDCD, - * CLOCAL, etc.) and compare it with VIRT_CD. - * - * VIRTUAL transitions high will have the side effect of waking blocked - * opens. - * - * PHYSICAL transitions low will cause hangups to occur _IF_ the virtual - * state is also low. We DON'T want to hangup on a PURE virtual drop. - */ - -#define CH_HANGUP 0x00002 /* Server port ready to close */ - -#define CH_VIRT_CD 0x00004 /* Carrier was virtually present */ -#define CH_PHYS_CD 0x00008 /* Carrier was physically present */ - -#define CH_CLOCAL 0x00010 /* CLOCAL set in cflags */ -#define CH_BAUD0 0x00020 /* Baud rate zero hangup */ - -#define CH_FAST_READ 0x00040 /* Fast reads are enabled */ -#define CH_FAST_WRITE 0x00080 /* Fast writes are enabled */ - -#define CH_PRON 0x00100 /* Printer on string active */ -#define CH_RX_FLUSH 0x00200 /* Flushing receive data */ -#define CH_LOW 0x00400 /* Thread waiting for LOW water */ -#define CH_EMPTY 0x00800 /* Thread waiting for EMPTY */ -#define CH_DRAIN 0x01000 /* Close is waiting to drain */ -#define CH_INPUT 0x02000 /* Thread waiting for INPUT */ -#define CH_RXSTOP 0x04000 /* Stop output to ldisc */ -#define CH_PARAM 0x08000 /* A parameter was updated */ -#define CH_WAITING_SYNC 0x10000 /* A pending sync was assigned - * to this port. - */ -#define CH_PORT_GONE 0x20000 /* Port has disappeared */ -#define CH_TX_BREAK 0x40000 /* TX Break to be sent, - * but has not yet. - */ - -/************************************************************************ - * Types of Open Requests for ch_otype. - ************************************************************************/ - -#define OTYPE_IMMEDIATE 0 /* Immediate Open */ -#define OTYPE_PERSISTENT 1 /* Persistent Open */ -#define OTYPE_INCOMING 2 /* Incoming Open */ - - -/************************************************************************ - * Request/Response flags. - ************************************************************************/ - -#define RR_SEQUENCE 0x0001 /* Get server RLAST, TIN */ -#define RR_STATUS 0x0002 /* Get server MINT, EINT */ -#define RR_BUFFER 0x0004 /* Get server RSIZE, TSIZE */ -#define RR_CAPABILITY 0x0008 /* Get server port capabilities */ - -#define RR_TX_FLUSH 0x0040 /* Flush output buffers */ -#define RR_RX_FLUSH 0x0080 /* Flush input buffers */ - -#define RR_TX_STOP 0x0100 /* Pause output */ -#define RR_RX_STOP 0x0200 /* Pause input */ -#define RR_TX_START 0x0400 /* Start output */ -#define RR_RX_START 0x0800 /* Start input */ - -#define RR_TX_BREAK 0x1000 /* Send BREAK */ -#define RR_TX_ICHAR 0x2000 /* Send character immediate */ - - -/************************************************************************ - * Channel information structure. struct ch_struct - ************************************************************************/ - -struct ch_struct { - struct digi_struct ch_digi; /* Digi variables */ - int ch_edelay; /* Digi edelay */ - - struct tty_port port; - struct un_struct ch_tun; /* Terminal unit info */ - struct un_struct ch_pun; /* Printer unit info */ - - struct nd_struct *ch_nd; /* Node pointer */ - u8 *ch_tbuf; /* Local Transmit Buffer */ - u8 *ch_rbuf; /* Local Receive Buffer */ - ulong ch_cpstime; /* Printer CPS time */ - ulong ch_waketime; /* Printer wake time */ - - ulong ch_flag; /* CH_* flags */ - - enum dgrp_ch_state_t ch_state; /* CS_* Protocol state */ - ushort ch_send; /* Bit vector of RR_* requests */ - ushort ch_expect; /* Bit vector of RR_* responses */ - ushort ch_wait_carrier; /* Thread count waiting for carrier */ - ushort ch_wait_count[3]; /* Thread count waiting by otype */ - - ushort ch_portnum; /* Port number */ - ushort ch_open_count; /* Successful open count */ - ushort ch_category; /* Device category */ - ushort ch_open_error; /* Last open error number */ - ushort ch_break_time; /* Pending break request time */ - ushort ch_cpsrem; /* Printer CPS remainder */ - ushort ch_ocook; /* Realport fastcook oflags */ - ushort ch_inwait; /* Thread count in CLIST input */ - - ushort ch_tin; /* Local transmit buffer in ptr */ - ushort ch_tout; /* Local transmit buffer out ptr */ - ushort ch_s_tin; /* Realport TIN */ - ushort ch_s_tpos; /* Realport TPOS */ - ushort ch_s_tsize; /* Realport TSIZE */ - ushort ch_s_treq; /* Realport TREQ */ - ushort ch_s_elast; /* Realport ELAST */ - - ushort ch_rin; /* Local receive buffer in ptr */ - ushort ch_rout; /* Local receive buffer out ptr */ - ushort ch_s_rin; /* Realport RIN */ - /* David Fries 7-13-2001, ch_s_rin should be renamed ch_s_rout because - * the variable we want to represent is the PortServer's ROUT, which is - * the sequence number for the next byte the PortServer will send us. - * RIN is the sequence number for the next byte the PortServer will - * receive from the uart. The port server will send data as long as - * ROUT is less than RWIN. What would happen is the port is opened, it - * receives data, it gives the value of RIN, we set the RWIN to - * RIN+RBUF_MAX-1, it sends us RWIN-ROUT bytes which overflows. ROUT - * is set to zero when the port is opened, so we start at zero and - * count up as data is received. - */ - ushort ch_s_rwin; /* Realport RWIN */ - ushort ch_s_rsize; /* Realport RSIZE */ - - ushort ch_tmax; /* Local TMAX */ - ushort ch_ttime; /* Local TTIME */ - ushort ch_rmax; /* Local RMAX */ - ushort ch_rtime; /* Local RTIME */ - ushort ch_rlow; /* Local RLOW */ - ushort ch_rhigh; /* Local RHIGH */ - - ushort ch_s_tmax; /* Realport TMAX */ - ushort ch_s_ttime; /* Realport TTIME */ - ushort ch_s_rmax; /* Realport RMAX */ - ushort ch_s_rtime; /* Realport RTIME */ - ushort ch_s_rlow; /* Realport RLOW */ - ushort ch_s_rhigh; /* Realport RHIGH */ - - ushort ch_brate; /* Local baud rate */ - ushort ch_cflag; /* Local tty cflags */ - ushort ch_iflag; /* Local tty iflags */ - ushort ch_oflag; /* Local tty oflags */ - ushort ch_xflag; /* Local tty xflags */ - - ushort ch_s_brate; /* Realport BRATE */ - ushort ch_s_cflag; /* Realport CFLAG */ - ushort ch_s_iflag; /* Realport IFLAG */ - ushort ch_s_oflag; /* Realport OFLAG */ - ushort ch_s_xflag; /* Realport XFLAG */ - - u8 ch_otype; /* Open request type */ - u8 ch_pscan_savechar; /* Last character read by parity scan */ - u8 ch_pscan_state; /* PScan State based on last 2 chars */ - u8 ch_otype_waiting; /* Type of open pending in server */ - u8 ch_flush_seq; /* Receive flush end sequence */ - u8 ch_s_mlast; /* Realport MLAST */ - - u8 ch_mout; /* Local MOUT */ - u8 ch_mflow; /* Local MFLOW */ - u8 ch_mctrl; /* Local MCTRL */ - u8 ch_xon; /* Local XON */ - u8 ch_xoff; /* Local XOFF */ - u8 ch_lnext; /* Local LNEXT */ - u8 ch_xxon; /* Local XXON */ - u8 ch_xxoff; /* Local XXOFF */ - - u8 ch_s_mout; /* Realport MOUT */ - u8 ch_s_mflow; /* Realport MFLOW */ - u8 ch_s_mctrl; /* Realport MCTRL */ - u8 ch_s_xon; /* Realport XON */ - u8 ch_s_xoff; /* Realport XOFF */ - u8 ch_s_lnext; /* Realport LNEXT */ - u8 ch_s_xxon; /* Realport XXON */ - u8 ch_s_xxoff; /* Realport XXOFF */ - - wait_queue_head_t ch_flag_wait; /* Wait queue for ch_flag changes */ - wait_queue_head_t ch_sleep; /* Wait queue for my_sleep() */ - - int ch_custom_speed; /* Realport custom speed */ - int ch_txcount; /* Running TX count */ - int ch_rxcount; /* Running RX count */ -}; - - -/************************************************************************ - * Node State definitions. - ************************************************************************/ - -enum dgrp_nd_state_t { - NS_CLOSED = 0, /* Network device is closed */ - NS_IDLE = 1, /* Network connection inactive */ - NS_SEND_QUERY = 2, /* Send server query */ - NS_WAIT_QUERY = 3, /* Wait for query response */ - NS_READY = 4, /* Network ready */ - NS_SEND_ERROR = 5 /* Must send error hangup */ -}; - -#define ND_STATE_STR(x) \ - ((x) == NS_CLOSED ? "CLOSED" : \ - ((x) == NS_IDLE ? "IDLE" : \ - ((x) == NS_SEND_QUERY ? "SEND_QUERY" : \ - ((x) == NS_WAIT_QUERY ? "WAIT_QUERY" : \ - ((x) == NS_READY ? "READY" : \ - ((x) == NS_SEND_ERROR ? "SEND_ERROR" : "UNKNOWN")))))) - -/************************************************************************ - * Node Flag definitions. - ************************************************************************/ - -#define ND_SELECT 0x0001 /* Multiple net read selects */ -#define ND_DEB_WAIT 0x0002 /* Debug Device waiting */ - - -/************************************************************************ - * Monitoring flag definitions. - ************************************************************************/ - -#define MON_WAIT_DATA 0x0001 /* Waiting for buffer data */ -#define MON_WAIT_SPACE 0x0002 /* Waiting for buffer space */ - -/************************************************************************ - * DPA flag definitions. - ************************************************************************/ - -#define DPA_WAIT_DATA 0x0001 /* Waiting for buffer data */ -#define DPA_WAIT_SPACE 0x0002 /* Waiting for buffer space */ - - -/************************************************************************ - * Definitions taken from Realport Dump. - ************************************************************************/ - -#define RPDUMP_MAGIC "Digi-RealPort-1.0" - -#define RPDUMP_MESSAGE 0xE2 /* Descriptive message */ -#define RPDUMP_RESET 0xE7 /* Connection reset */ -#define RPDUMP_CLIENT 0xE8 /* Client data */ -#define RPDUMP_SERVER 0xE9 /* Server data */ - - -/************************************************************************ - * Node request/response definitions. - ************************************************************************/ - -#define NR_ECHO 0x0001 /* Server echo packet */ -#define NR_IDENT 0x0002 /* Server Product ID */ -#define NR_CAPABILITY 0x0004 /* Server Capabilties */ -#define NR_VPD 0x0008 /* Server VPD, if any */ -#define NR_PASSWORD 0x0010 /* Server Password */ - -/************************************************************************ - * Registration status of the node's Linux struct tty_driver structures. - ************************************************************************/ -#define SERIAL_TTDRV_REG 0x0001 /* nd_serial_ttdriver registered */ -#define CALLOUT_TTDRV_REG 0x0002 /* nd_callout_ttdriver registered */ -#define XPRINT_TTDRV_REG 0x0004 /* nd_xprint_ttdriver registered */ - - -/************************************************************************ - * Node structure. There exists one of these for each associated - * realport server. - ************************************************************************/ - -struct nd_struct { - struct list_head list; - long nd_major; /* Node's major number */ - long nd_ID; /* Node's ID code */ - - char nd_serial_name[50]; /* "tty_dgrp_<id>_" + null */ - char nd_callout_name[50]; /* "cu_dgrp_<id>_" + null */ - char nd_xprint_name[50]; /* "pr_dgrp_<id>_" + null */ - - char password[16]; /* Password for server, if needed */ - int nd_tty_ref_cnt; /* Linux tty reference count */ - - struct proc_dir_entry *nd_net_de; /* Dir entry for /proc/dgrp/net */ - struct proc_dir_entry *nd_mon_de; /* Dir entry for /proc/dgrp/mon */ - struct proc_dir_entry *nd_ports_de; /* Dir entry for /proc/dgrp/ports*/ - struct proc_dir_entry *nd_dpa_de; /* Dir entry for /proc/dgrp/dpa */ - - spinlock_t nd_lock; /* General node lock */ - - struct semaphore nd_net_semaphore; /* Net read/write lock */ - struct semaphore nd_mon_semaphore; /* Monitor buffer lock */ - spinlock_t nd_dpa_lock; /* DPA buffer lock */ - - enum dgrp_nd_state_t nd_state; /* NS_* network state */ - int nd_chan_count; /* # active channels */ - int nd_flag; /* Node flags */ - int nd_send; /* Responses to send */ - int nd_expect; /* Responses we expect */ - - u8 *nd_iobuf; /* Network R/W Buffer */ - wait_queue_head_t nd_tx_waitq; /* Network select wait queue */ - - u8 *nd_inputbuf; /* Input Buffer */ - u8 *nd_inputflagbuf; /* Input Flags Buffer */ - - int nd_tx_deposit; /* Accumulated transmit deposits */ - int nd_tx_charge; /* Accumulated transmit charges */ - int nd_tx_credit; /* Current TX credit */ - int nd_tx_ready; /* Ready to transmit */ - int nd_tx_work; /* TX work waiting */ - ulong nd_tx_time; /* Last transmit time */ - ulong nd_poll_time; /* Next scheduled poll time */ - - int nd_delay; /* Current TX delay */ - int nd_rate; /* Current TX rate */ - struct link_struct nd_link; /* Link speed params. */ - - int nd_seq_in; /* TX seq in ptr */ - int nd_seq_out; /* TX seq out ptr */ - int nd_unack; /* Unacknowledged byte count */ - int nd_remain; /* Remaining receive bytes */ - int nd_tx_module; /* Current TX module # */ - int nd_rx_module; /* Current RX module # */ - char *nd_error; /* Protocol error message */ - - int nd_write_count; /* drp_write() call count */ - int nd_read_count; /* drp_read() count */ - int nd_send_count; /* TCP message sent */ - int nd_tx_byte; /* Transmit byte count */ - int nd_rx_byte; /* Receive byte count */ - - ulong nd_mon_lbolt; /* Monitor start time */ - int nd_mon_flag; /* Monitor flags */ - int nd_mon_in; /* Monitor in pointer */ - int nd_mon_out; /* Monitor out pointer */ - wait_queue_head_t nd_mon_wqueue; /* Monitor wait queue (on flags) */ - u8 *nd_mon_buf; /* Monitor buffer */ - - ulong nd_dpa_lbolt; /* DPA start time */ - int nd_dpa_flag; /* DPA flags */ - int nd_dpa_in; /* DPA in pointer */ - int nd_dpa_out; /* DPA out pointer */ - wait_queue_head_t nd_dpa_wqueue; /* DPA wait queue (on flags) */ - u8 *nd_dpa_buf; /* DPA buffer */ - - uint nd_dpa_debug; - uint nd_dpa_port; - - wait_queue_head_t nd_seq_wque[SEQ_MAX]; /* TX thread wait queues */ - u8 nd_seq_wait[SEQ_MAX]; /* Transmit thread wait count */ - - ushort nd_seq_size[SEQ_MAX]; /* Transmit seq packet size */ - ulong nd_seq_time[SEQ_MAX]; /* Transmit seq packet time */ - - ushort nd_hw_ver; /* HW version returned from PS */ - ushort nd_sw_ver; /* SW version returned from PS */ - uint nd_hw_id; /* HW ID returned from PS */ - u8 nd_ps_desc[MAX_DESC_LEN]; /* Description from PS */ - uint nd_vpd_len; /* VPD len, if any */ - u8 nd_vpd[VPDSIZE]; /* VPD, if any */ - - ulong nd_ttdriver_flags; /* Registration status */ - struct tty_driver *nd_serial_ttdriver; /* Linux TTYDRIVER structure */ - struct tty_driver *nd_callout_ttdriver; /* Linux TTYDRIVER structure */ - struct tty_driver *nd_xprint_ttdriver; /* Linux TTYDRIVER structure */ - - u8 *nd_writebuf; /* Used to cache data read - * from user - */ - struct ch_struct nd_chan[CHAN_MAX]; /* Channel array */ - struct device *nd_class_dev; /* Hang our sysfs stuff off of here */ -}; - -#endif /* __DRP_H */ |