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1275 |
phoenix |
/*
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* IBM/3270 Driver -- Copyright (C) 2000 UTS Global LLC
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*
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* tubio.h -- All-Purpose header file
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*
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*
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*
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*
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*
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* Author: Richard Hitt
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/version.h>
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#include <linux/major.h>
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#ifndef IBM_TTY3270_MAJOR
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# define IBM_TTY3270_MAJOR 212
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#endif /* IBM_TTY3270_MAJOR */
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#ifndef IBM_FS3270_MAJOR
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# define IBM_FS3270_MAJOR 213
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#endif /* IBM_FS3270_MAJOR */
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#include <linux/slab.h>
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#include <asm/irq.h>
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#include <asm/io.h>
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#include <asm/idals.h>
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#include <linux/console.h>
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#include <linux/interrupt.h>
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#include <asm/ebcdic.h>
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#include <asm/uaccess.h>
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#include <linux/proc_fs.h>
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0))
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#include <linux/devfs_fs_kernel.h>
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#endif
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#define TUB(x) (('3'<<8)|(x))
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#define TUBICMD TUB(3)
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#define TUBOCMD TUB(4)
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#define TUBGETI TUB(7)
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#define TUBGETO TUB(8)
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#define TUBSETMOD TUB(12)
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#define TUBGETMOD TUB(13)
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#define TIOPOLL TUB(32)
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#define TIOPOKE TUB(33)
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#define TIONPOKE TUB(34)
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#define TIOTNORM TUB(35)
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/* Local Channel Commands */
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#define TC_WRITE 0x01
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#define TC_EWRITE 0x05
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#define TC_READMOD 0x06
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#define TC_EWRITEA 0x0d
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#define TC_WRITESF 0x11
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/* Buffer Control Orders */
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#define TO_SF 0x1d
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#define TO_SBA 0x11
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#define TO_IC 0x13
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#define TO_PT 0x05
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#define TO_RA 0x3c
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#define TO_SFE 0x29
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#define TO_EUA 0x12
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#define TO_MF 0x2c
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#define TO_SA 0x28
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/* Field Attribute Bytes */
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#define TF_INPUT 0x40 /* Visible input */
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#define TF_INPUTN 0x4c /* Invisible input */
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#define TF_INMDT 0xc1 /* Visible, Set-MDT */
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#define TF_LOG 0x60
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#define TF_STAT 0x60
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/* Character Attribute Bytes */
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#define TAT_RESET 0x00
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#define TAT_FIELD 0xc0
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#define TAT_EXTHI 0x41
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#define TAT_COLOR 0x42
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#define TAT_CHARS 0x43
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#define TAT_TRANS 0x46
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/* Extended-Highlighting Bytes */
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#define TAX_RESET 0x00
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#define TAX_BLINK 0xf1
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#define TAX_REVER 0xf2
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#define TAX_UNDER 0xf4
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/* Reset value */
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#define TAR_RESET 0x00
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/* Color values */
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#define TAC_RESET 0x00
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#define TAC_BLUE 0xf1
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#define TAC_RED 0xf2
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#define TAC_PINK 0xf3
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#define TAC_GREEN 0xf4
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#define TAC_TURQ 0xf5
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#define TAC_YELLOW 0xf6
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#define TAC_WHITE 0xf7
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#define TAC_DEFAULT 0x00
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/* Write Control Characters */
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#define TW_NONE 0x40 /* No particular action */
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#define TW_KR 0xc2 /* Keyboard restore */
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#define TW_PLUSALARM 0x04 /* Add this bit for alarm */
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/* Attention-ID (AID) Characters */
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#define TA_CLEAR 0x6d
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#define TA_PA2 0x6e
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#define TA_ENTER 0x7d
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/* more to come */
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#define MIN(a, b) ((a) < (b)? (a): (b))
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#define TUB_BUFADR(adr, cpp) \
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tty3270_tub_bufadr(tubp, adr, cpp)
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#define TUB_EBCASC(addr, nr) codepage_convert(tub_ebcasc, addr, nr)
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#define TUB_ASCEBC(addr, nr) codepage_convert(tub_ascebc, addr, nr)
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/*
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*
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* General global values for the tube driver
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*
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*/
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enum tubmode {
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TBM_LN, /* Line mode */
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TBM_FS, /* Fullscreen mode */
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TBM_FSLN /* Line mode shelled out of fullscreen */
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};
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enum tubstat { /* normal-mode status */
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TBS_RUNNING, /* none of the following */
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TBS_MORE, /* timed "MORE..." in status */
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TBS_HOLD /* untimed "HOLDING" in status */
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};
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enum tubcmd { /* normal-mode actions to do */
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TBC_CONOPEN, /* Erase-write the console */
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TBC_OPEN, /* Open the tty screen */
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TBC_UPDATE, /* Add lines to the log, clear cmdline */
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TBC_UPDLOG, /* Add lines to log */
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TBC_KRUPDLOG, /* Add lines to log, reset kbd */
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TBC_CLEAR, /* Build screen from scratch */
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TBC_CLRUPDLOG, /* Do log & status, not cmdline */
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TBC_UPDSTAT, /* Do status update only */
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TBC_CLRINPUT, /* Clear input area only */
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TBC_UPDINPUT /* Update input area only */
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};
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enum tubwhat { /* echo what= proc actions */
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TW_BOGUS, /* Nothing at all */
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TW_CONFIG /* Output configuration info */
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};
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#define TUBMAXMINS 256
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#define TUB_DEV MKDEV(IBM_FS3270_MAJ, 0) /* Generic /dev/3270/tub */
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#define _GEOM_ROWS 24
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#define _GEOM_COLS 80
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#define GEOM_ROWS (tubp->geom_rows)
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#define GEOM_COLS (tubp->geom_cols)
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#define GEOM_MAXROWS 127
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#define GEOM_MAXCOLS 132
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#define GEOM_INPLEN (GEOM_COLS * 2 - 20)
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#define GEOM_MAXINPLEN (GEOM_MAXCOLS * 2 - 20)
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#define GEOM_INPUT (GEOM_COLS * (GEOM_ROWS - 2) - 1) /* input atr posn */
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#define GEOM_STAT (GEOM_INPUT + 1 + GEOM_INPLEN)
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#define GEOM_LOG (GEOM_COLS * GEOM_ROWS - 1) /* log atr posn */
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#define TS_RUNNING "Linux Running "
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#define TS_MORE "Linux More... "
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#define DEFAULT_SCROLLTIME 5
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#define TS_HOLD "Linux Holding "
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/* data length used by tty3270_set_status_area: SBA (3), SF (2), data */
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#define TS_LENGTH (sizeof TS_RUNNING + 3 + 2)
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typedef struct {
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int aid; /* What-to-do flags */
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char *string; /* Optional input string */
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} aid_t;
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#define AIDENTRY(ch, tubp) (&((tubp)->tty_aid[(ch) & 0x3f]))
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/* For TUBGETMOD and TUBSETMOD. Should include. */
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typedef struct tubiocb {
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short model;
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short line_cnt;
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short col_cnt;
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short pf_cnt;
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short re_cnt;
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short map;
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} tubiocb_t;
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/* Flags that go in int aid, above */
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#define TA_CLEARKEY 0x01 /* Key does hardware CLEAR */
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#define TA_SHORTREAD 0x02 /* Key does hardware shortread */
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/* If both are off, key does hardware Read Modified. */
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#define TA_DOENTER 0x04 /* Treat key like ENTER */
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#define TA_DOSTRING 0x08 /* Use string and ENTER */
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#define TA_DOSTRINGD 0x10 /* Display string & set MDT */
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#define TA_CLEARLOG 0x20 /* Make key cause clear of log */
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/*
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* Tube driver buffer control block
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*/
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typedef struct bcb_s {
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char *bc_buf; /* Pointer to buffer */
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int bc_len; /* Length of buffer */
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int bc_cnt; /* Count of bytes buffered */
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int bc_wr; /* Posn to write next byte into */
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int bc_rd; /* Posn to read next byte from */
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} bcb_t;
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typedef struct tub_s {
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int minor;
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int irq;
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int irqrc;
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int devno;
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int geom_rows;
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int geom_cols;
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tubiocb_t tubiocb;
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int lnopen;
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int fsopen;
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int icmd;
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int ocmd;
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devstat_t devstat;
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ccw1_t rccw;
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ccw1_t wccw;
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struct idal_buffer *wbuf;
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int cswl;
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void (*intv)(struct tub_s *, devstat_t *);
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
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struct wait_queue *waitq;
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#else
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wait_queue_head_t waitq;
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#endif
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int dstat;
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sense_t sense;
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enum tubmode mode;
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enum tubstat stat;
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enum tubcmd cmd;
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int flags; /* See below for values */
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struct tq_struct tqueue;
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/* Stuff for fs-driver support */
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pid_t fs_pid; /* Pid if TBM_FS */
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/* Stuff for tty-driver support */
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struct tty_struct *tty;
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char *tty_input; /* tty input area */
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int tty_inattr; /* input-area field attribute */
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#define TTY_OUTPUT_SIZE 1024
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bcb_t tty_bcb; /* Output buffer control info */
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int tty_oucol; /* Kludge */
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int tty_nextlogx; /* next screen-log position */
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int tty_savecursor; /* saved cursor position */
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int tty_scrolltime; /* scrollforward wait time, sec */
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struct timer_list tty_stimer; /* timer for scrolltime */
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aid_t tty_aid[64]; /* Aid descriptors */
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int tty_aidinit; /* Boolean */
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int tty_showaidx; /* Last aid x to set_aid */
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int tty_14bitadr; /* 14-bit bufadrs okay */
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#define MAX_TTY_ESCA 24 /* Set-Attribute-Order array */
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char tty_esca[MAX_TTY_ESCA]; /* SA array */
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int tty_escx; /* Current index within it */
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| 269 |
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/* For command recall --- */
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char *(*tty_rclbufs)[]; /* Array of ptrs to recall bufs */
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int tty_rclk; /* Size of array tty_rclbufs */
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int tty_rclp; /* Index for most-recent cmd */
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int tty_rclb; /* Index for backscrolling */
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| 275 |
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/* Work area to contain the hardware write stream */
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char (*ttyscreen)[]; /* ptr to data stream area */
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int ttyscreenl; /* its length */
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| 278 |
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ccw1_t ttyccw;
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| 279 |
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} tub_t;
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| 280 |
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| 281 |
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/* values for flags: */
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| 282 |
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#define TUB_WORKING 0x0001
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#define TUB_BHPENDING 0x0002
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#define TUB_RDPENDING 0x0004
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#define TUB_ALARM 0x0008
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| 286 |
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#define TUB_SCROLLTIMING 0x0010
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| 287 |
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#define TUB_ATTN 0x0020
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| 288 |
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#define TUB_IACTIVE 0x0040
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| 289 |
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#define TUB_SIZED 0x0080
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| 290 |
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#define TUB_EXPECT_DE 0x0100
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| 291 |
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#define TUB_UNSOL_DE 0x0200
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| 292 |
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#define TUB_OPEN_STET 0x0400 /* No screen clear on open */
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| 293 |
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#define TUB_UE_BUSY 0x0800
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| 294 |
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#define TUB_INPUT_HACK 0x1000 /* Early init of command line */
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| 295 |
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| 296 |
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#ifdef CONFIG_TN3270_CONSOLE
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| 297 |
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/*
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| 298 |
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* Extra stuff for 3270 console support
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| 299 |
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*/
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| 300 |
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
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| 301 |
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#define S390_CONSOLE_DEV MKDEV(TTY_MAJOR, 64)
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| 302 |
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#else
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| 303 |
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#define S390_CONSOLE_DEV MKDEV(TTYAUX_MAJOR, 1)
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| 304 |
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#endif
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| 305 |
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extern int tub3270_con_devno;
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| 306 |
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extern char (*tub3270_con_output)[];
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| 307 |
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extern int tub3270_con_outputl;
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| 308 |
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extern int tub3270_con_ouwr;
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| 309 |
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extern int tub3270_con_oucount;
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| 310 |
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extern int tub3270_con_irq;
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| 311 |
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extern tub_t *tub3270_con_tubp;
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| 312 |
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extern struct tty_driver tty3270_con_driver;
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| 313 |
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#endif /* CONFIG_TN3270_CONSOLE */
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| 314 |
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| 315 |
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extern int tubnummins;
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| 316 |
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extern tub_t *(*tubminors)[TUBMAXMINS];
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| 317 |
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extern tub_t *(*(*tubirqs)[256])[256];
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| 318 |
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extern unsigned char tub_ascebc[256];
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| 319 |
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extern unsigned char tub_ebcasc[256];
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| 320 |
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extern unsigned char tub_ebcgraf[64];
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| 321 |
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extern int tubdebug;
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| 322 |
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extern int fs3270_major;
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| 323 |
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extern int tty3270_major;
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| 324 |
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extern int tty3270_proc_misc;
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| 325 |
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extern enum tubwhat tty3270_proc_what;
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| 326 |
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extern struct tty_driver tty3270_driver;
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| 327 |
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#ifdef CONFIG_DEVFS_FS
|
| 328 |
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extern devfs_handle_t fs3270_devfs_dir;
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| 329 |
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extern void fs3270_devfs_register(tub_t *);
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| 330 |
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extern void fs3270_devfs_unregister(tub_t *);
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| 331 |
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#endif
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| 332 |
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|
| 333 |
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#ifndef spin_trylock_irqsave
|
| 334 |
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#define spin_trylock_irqsave(lock, flags) \
|
| 335 |
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({ \
|
| 336 |
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int success; \
|
| 337 |
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__save_flags(flags); \
|
| 338 |
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__cli(); \
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| 339 |
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success = spin_trylock(lock); \
|
| 340 |
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if (success == 0) \
|
| 341 |
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__restore_flags(flags); \
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| 342 |
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success; \
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| 343 |
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})
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| 344 |
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#endif /* if not spin_trylock_irqsave */
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| 345 |
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|
| 346 |
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#ifndef s390irq_spin_trylock_irqsave
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| 347 |
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#define s390irq_spin_trylock_irqsave(irq, flags) \
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| 348 |
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spin_trylock_irqsave(&(ioinfo[irq]->irq_lock), flags)
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| 349 |
|
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#endif /* if not s390irq_spin_trylock_irqsave */
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| 350 |
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|
| 351 |
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#define TUBLOCK(irq, flags) \
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| 352 |
|
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s390irq_spin_lock_irqsave(irq, flags)
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| 353 |
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|
| 354 |
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#define TUBTRYLOCK(irq, flags) \
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| 355 |
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s390irq_spin_trylock_irqsave(irq, flags)
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| 356 |
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|
| 357 |
|
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#define TUBUNLOCK(irq, flags) \
|
| 358 |
|
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s390irq_spin_unlock_irqrestore(irq, flags)
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| 359 |
|
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|
| 360 |
|
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/*
|
| 361 |
|
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* Find tub_t * given fullscreen device's irq (subchannel number)
|
| 362 |
|
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*/
|
| 363 |
|
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extern tub_t *tubfindbyirq(int);
|
| 364 |
|
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#define IRQ2TUB(irq) tubfindbyirq(irq)
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| 365 |
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/*
|
| 366 |
|
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* Find tub_t * given fullscreen device's inode pointer
|
| 367 |
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* This algorithm takes into account /dev/3270/tub.
|
| 368 |
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*/
|
| 369 |
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static inline tub_t *INODE2TUB(struct inode *ip)
|
| 370 |
|
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{
|
| 371 |
|
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unsigned int minor = MINOR(ip->i_rdev);
|
| 372 |
|
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tub_t *tubp = NULL;
|
| 373 |
|
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if (minor == 0 && current->tty != NULL) {
|
| 374 |
|
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
|
| 375 |
|
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#ifdef CONFIG_TN3270_CONSOLE
|
| 376 |
|
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if (tub3270_con_tubp != NULL &&
|
| 377 |
|
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current->tty->device == S390_CONSOLE_DEV)
|
| 378 |
|
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minor = tub3270_con_tubp->minor;
|
| 379 |
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else
|
| 380 |
|
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#endif
|
| 381 |
|
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#endif
|
| 382 |
|
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if (MAJOR(current->tty->device) == IBM_TTY3270_MAJOR)
|
| 383 |
|
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minor = MINOR(current->tty->device);
|
| 384 |
|
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}
|
| 385 |
|
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if (minor <= tubnummins && minor > 0)
|
| 386 |
|
|
tubp = (*tubminors)[minor];
|
| 387 |
|
|
return tubp;
|
| 388 |
|
|
}
|
| 389 |
|
|
|
| 390 |
|
|
/*
|
| 391 |
|
|
* Find tub_t * given non-fullscreen (tty) device's tty_struct pointer
|
| 392 |
|
|
*/
|
| 393 |
|
|
static inline tub_t *TTY2TUB(struct tty_struct *tty)
|
| 394 |
|
|
{
|
| 395 |
|
|
unsigned int minor = MINOR(tty->device);
|
| 396 |
|
|
tub_t *tubp = NULL;
|
| 397 |
|
|
|
| 398 |
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
|
| 399 |
|
|
#ifdef CONFIG_TN3270_CONSOLE
|
| 400 |
|
|
if (tty->device == S390_CONSOLE_DEV)
|
| 401 |
|
|
tubp = tub3270_con_tubp;
|
| 402 |
|
|
else
|
| 403 |
|
|
#endif
|
| 404 |
|
|
#endif
|
| 405 |
|
|
if (minor <= tubnummins && minor > 0)
|
| 406 |
|
|
tubp = (*tubminors)[minor];
|
| 407 |
|
|
return tubp;
|
| 408 |
|
|
}
|
| 409 |
|
|
|
| 410 |
|
|
extern void tub_inc_use_count(void);
|
| 411 |
|
|
extern void tub_dec_use_count(void);
|
| 412 |
|
|
extern int tub3270_movedata(bcb_t *, bcb_t *, int);
|
| 413 |
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
|
| 414 |
|
|
extern int tubmakemin(int, dev_info_t *);
|
| 415 |
|
|
#else
|
| 416 |
|
|
extern int tubmakemin(int, s390_dev_info_t *);
|
| 417 |
|
|
#endif
|
| 418 |
|
|
extern int tub3270_con_copy(tub_t *);
|
| 419 |
|
|
extern int tty3270_rcl_init(tub_t *);
|
| 420 |
|
|
extern int tty3270_rcl_set(tub_t *, char *, int);
|
| 421 |
|
|
extern void tty3270_rcl_fini(tub_t *);
|
| 422 |
|
|
extern int tty3270_rcl_get(tub_t *, char *, int, int);
|
| 423 |
|
|
extern void tty3270_rcl_put(tub_t *, char *, int);
|
| 424 |
|
|
extern void tty3270_rcl_sync(tub_t *);
|
| 425 |
|
|
extern void tty3270_rcl_purge(tub_t *);
|
| 426 |
|
|
extern int tty3270_rcl_resize(tub_t *, int);
|
| 427 |
|
|
extern int tty3270_size(tub_t *, long *);
|
| 428 |
|
|
extern int tty3270_aid_init(tub_t *);
|
| 429 |
|
|
extern void tty3270_aid_fini(tub_t *);
|
| 430 |
|
|
extern void tty3270_aid_reinit(tub_t *);
|
| 431 |
|
|
extern int tty3270_aid_get(tub_t *, int, int *, char **);
|
| 432 |
|
|
extern int tty3270_aid_set(tub_t *, char *, int);
|
| 433 |
|
|
extern int tty3270_build(tub_t *);
|
| 434 |
|
|
extern void tty3270_scl_settimer(tub_t *);
|
| 435 |
|
|
extern void tty3270_scl_resettimer(tub_t *);
|
| 436 |
|
|
extern int tty3270_scl_set(tub_t *, char *, int);
|
| 437 |
|
|
extern int tty3270_scl_init(tub_t *tubp);
|
| 438 |
|
|
extern void tty3270_scl_fini(tub_t *tubp);
|
