tubio.h
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上传日期:2013-02-24
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文件大小:12k
- /*
- * IBM/3270 Driver -- Copyright (C) 2000 UTS Global LLC
- *
- * tubio.h -- All-Purpose header file
- *
- *
- *
- *
- *
- * Author: Richard Hitt
- */
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/version.h>
- #include <linux/major.h>
- #ifndef IBM_TTY3270_MAJOR
- # define IBM_TTY3270_MAJOR 212
- #endif /* IBM_TTY3270_MAJOR */
- #ifndef IBM_FS3270_MAJOR
- # define IBM_FS3270_MAJOR 213
- #endif /* IBM_FS3270_MAJOR */
- #include <linux/slab.h>
- #include <asm/irq.h>
- #include <asm/io.h>
- #include <linux/console.h>
- #include <linux/interrupt.h>
- #include <asm/ebcdic.h>
- #include <asm/uaccess.h>
- #include <linux/proc_fs.h>
- #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0))
- #include <linux/devfs_fs_kernel.h>
- #endif
- #define TUB(x) (('3'<<8)|(x))
- #define TUBICMD TUB(3)
- #define TUBOCMD TUB(4)
- #define TUBGETI TUB(7)
- #define TUBGETO TUB(8)
- #define TUBSETMOD TUB(12)
- #define TUBGETMOD TUB(13)
- #define TIOPOLL TUB(32)
- #define TIOPOKE TUB(33)
- #define TIONPOKE TUB(34)
- #define TIOTNORM TUB(35)
- /* Local Channel Commands */
- #define TC_WRITE 0x01
- #define TC_EWRITE 0x05
- #define TC_READMOD 0x06
- #define TC_EWRITEA 0x0d
- #define TC_WRITESF 0x11
- /* Buffer Control Orders */
- #define TO_SF 0x1d
- #define TO_SBA 0x11
- #define TO_IC 0x13
- #define TO_PT 0x05
- #define TO_RA 0x3c
- #define TO_SFE 0x29
- #define TO_EUA 0x12
- #define TO_MF 0x2c
- #define TO_SA 0x28
- /* Field Attribute Bytes */
- #define TF_INPUT 0x40 /* Visible input */
- #define TF_INPUTN 0x4c /* Invisible input */
- #define TF_INMDT 0xc1 /* Visible, Set-MDT */
- #define TF_LOG 0x60
- #define TF_STAT 0x60
- /* Character Attribute Bytes */
- #define TAT_RESET 0x00
- #define TAT_FIELD 0xc0
- #define TAT_EXTHI 0x41
- #define TAT_COLOR 0x42
- #define TAT_CHARS 0x43
- #define TAT_TRANS 0x46
- /* Reset value */
- #define TAR_RESET 0x00
- /* Color values */
- #define TAC_BLUE 0xf1
- #define TAC_RED 0xf2
- #define TAC_PINK 0xf3
- #define TAC_GREEN 0xf4
- #define TAC_TURQ 0xf5
- #define TAC_YELLOW 0xf6
- #define TAC_WHITE 0xf7
- #define TAC_DEFAULT 0x00
- /* Write Control Characters */
- #define TW_NONE 0x40 /* No particular action */
- #define TW_KR 0xc2 /* Keyboard restore */
- #define TW_PLUSALARM 0x04 /* Add this bit for alarm */
- /* Attention-ID (AID) Characters */
- #define TA_CLEAR 0x6d
- #define TA_PA2 0x6e
- #define TA_ENTER 0x7d
- /* more to come */
- #define MIN(a, b) ((a) < (b)? (a): (b))
- #define TUB_BUFADR(adr, cpp)
- tty3270_tub_bufadr(tubp, adr, cpp)
- #define TUB_EBCASC(addr, nr) codepage_convert(tub_ebcasc, addr, nr)
- #define TUB_ASCEBC(addr, nr) codepage_convert(tub_ascebc, addr, nr)
- /*
- *
- * General global values for the tube driver
- *
- */
- enum tubmode {
- TBM_LN, /* Line mode */
- TBM_FS, /* Fullscreen mode */
- TBM_FSLN /* Line mode shelled out of fullscreen */
- };
- enum tubstat { /* normal-mode status */
- TBS_RUNNING, /* none of the following */
- TBS_MORE, /* timed "MORE..." in status */
- TBS_HOLD /* untimed "HOLDING" in status */
- };
- enum tubcmd { /* normal-mode actions to do */
- TBC_CONOPEN, /* Erase-write the console */
- TBC_OPEN, /* Open the tty screen */
- TBC_UPDATE, /* Add lines to the log, clear cmdline */
- TBC_UPDLOG, /* Add lines to log */
- TBC_KRUPDLOG, /* Add lines to log, reset kbd */
- TBC_CLEAR, /* Build screen from scratch */
- TBC_CLRUPDLOG, /* Do log & status, not cmdline */
- TBC_UPDSTAT, /* Do status update only */
- TBC_CLRINPUT, /* Clear input area only */
- TBC_UPDINPUT /* Update input area only */
- };
- enum tubwhat { /* echo what= proc actions */
- TW_BOGUS, /* Nothing at all */
- TW_CONFIG /* Output configuration info */
- };
- #define TUBMAXMINS 256
- #define TUB_DEV MKDEV(IBM_FS3270_MAJ, 0) /* Generic /dev/3270/tub */
- #define _GEOM_ROWS 24
- #define _GEOM_COLS 80
- #define GEOM_ROWS (tubp->geom_rows)
- #define GEOM_COLS (tubp->geom_cols)
- #define GEOM_MAXROWS 127
- #define GEOM_MAXCOLS 132
- #define GEOM_INPLEN (GEOM_COLS * 2 - 20)
- #define GEOM_MAXINPLEN (GEOM_MAXCOLS * 2 - 20)
- #define GEOM_INPUT (GEOM_COLS * (GEOM_ROWS - 2) - 1) /* input atr posn */
- #define GEOM_STAT (GEOM_INPUT + 1 + GEOM_INPLEN)
- #define GEOM_LOG (GEOM_COLS * GEOM_ROWS - 1) /* log atr posn */
- #define TS_RUNNING "Linux Running "
- #define TS_MORE "Linux More... "
- #define DEFAULT_SCROLLTIME 5
- #define TS_HOLD "Linux Holding "
- /* data length used by tty3270_set_status_area: SBA (3), SF (2), data */
- #define TS_LENGTH (sizeof TS_RUNNING + 3 + 2)
- typedef struct {
- int aid; /* What-to-do flags */
- char *string; /* Optional input string */
- } aid_t;
- #define AIDENTRY(ch, tubp) (&((tubp)->tty_aid[(ch) & 0x3f]))
- /* For TUBGETMOD and TUBSETMOD. Should include. */
- typedef struct tubiocb {
- short model;
- short line_cnt;
- short col_cnt;
- short pf_cnt;
- short re_cnt;
- short map;
- } tubiocb_t;
- /* Flags that go in int aid, above */
- #define TA_CLEARKEY 0x01 /* Key does hardware CLEAR */
- #define TA_SHORTREAD 0x02 /* Key does hardware shortread */
- /* If both are off, key does hardware Read Modified. */
- #define TA_DOENTER 0x04 /* Treat key like ENTER */
- #define TA_DOSTRING 0x08 /* Use string and ENTER */
- #define TA_DOSTRINGD 0x10 /* Display string & set MDT */
- #define TA_CLEARLOG 0x20 /* Make key cause clear of log */
- /*
- * Tube driver buffer control block
- */
- typedef struct bcb_s {
- char *bc_buf; /* Pointer to buffer */
- int bc_len; /* Length of buffer */
- int bc_cnt; /* Count of bytes buffered */
- int bc_wr; /* Posn to write next byte into */
- int bc_rd; /* Posn to read next byte from */
- } bcb_t;
- typedef struct tub_s {
- int minor;
- int irq;
- int irqrc;
- int devno;
- int geom_rows;
- int geom_cols;
- tubiocb_t tubiocb;
- int lnopen;
- int fsopen;
- int icmd;
- int ocmd;
- devstat_t devstat;
- ccw1_t rccw;
- ccw1_t wccw;
- void *wbuf;
- int cswl;
- void (*intv)(struct tub_s *, devstat_t *);
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
- struct wait_queue *waitq;
- #else
- wait_queue_head_t waitq;
- #endif
- int dstat;
- sense_t sense;
- enum tubmode mode;
- enum tubstat stat;
- enum tubcmd cmd;
- int flags; /* See below for values */
- struct tq_struct tqueue;
- /* Stuff for fs-driver support */
- pid_t fs_pid; /* Pid if TBM_FS */
- /* Stuff for tty-driver support */
- struct tty_struct *tty;
- char tty_input[GEOM_MAXINPLEN]; /* tty input area */
- int tty_inattr; /* input-area field attribute */
- #define TTY_OUTPUT_SIZE 1024
- bcb_t tty_bcb; /* Output buffer control info */
- int tty_oucol; /* Kludge */
- int tty_nextlogx; /* next screen-log position */
- int tty_scrolltime; /* scrollforward wait time, sec */
- struct timer_list tty_stimer; /* timer for scrolltime */
- aid_t tty_aid[64]; /* Aid descriptors */
- int tty_aidinit; /* Boolean */
- int tty_showaidx; /* Last aid x to set_aid */
- int tty_14bitadr; /* 14-bit bufadrs okay */
- #define MAX_TTY_ESCA 24 /* Set-Attribute-Order array */
- char tty_esca[MAX_TTY_ESCA]; /* SA array */
- int tty_escx; /* Current index within it */
- /* For command recall --- */
- char *(*tty_rclbufs)[]; /* Array of ptrs to recall bufs */
- int tty_rclk; /* Size of array tty_rclbufs */
- int tty_rclp; /* Index for most-recent cmd */
- int tty_rclb; /* Index for backscrolling */
- /* Work area to contain the hardware write stream */
- char (*ttyscreen)[]; /* ptr to data stream area */
- int ttyscreenl; /* its length */
- ccw1_t ttyccw;
- } tub_t;
- /* values for flags: */
- #define TUB_WORKING 0x0001
- #define TUB_BHPENDING 0x0002
- #define TUB_RDPENDING 0x0004
- #define TUB_ALARM 0x0008
- #define TUB_SCROLLTIMING 0x0010
- #define TUB_ATTN 0x0020
- #define TUB_IACTIVE 0x0040
- #define TUB_SIZED 0x0080
- #define TUB_EXPECT_DE 0x0100
- #define TUB_UNSOL_DE 0x0200
- #define TUB_OPEN_STET 0x0400 /* No screen clear on open */
- #define TUB_UE_BUSY 0x0800
- #define TUB_INPUT_HACK 0x1000 /* Early init of command line */
- #ifdef CONFIG_TN3270_CONSOLE
- /*
- * Extra stuff for 3270 console support
- */
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
- #define S390_CONSOLE_DEV MKDEV(TTY_MAJOR, 64)
- #else
- #define S390_CONSOLE_DEV MKDEV(TTYAUX_MAJOR, 1)
- #endif
- extern int tub3270_con_devno;
- extern char (*tub3270_con_output)[];
- extern int tub3270_con_outputl;
- extern int tub3270_con_ouwr;
- extern int tub3270_con_oucount;
- extern int tub3270_con_irq;
- extern tub_t *tub3270_con_tubp;
- extern struct tty_driver tty3270_con_driver;
- #endif /* CONFIG_TN3270_CONSOLE */
- extern int tubnummins;
- extern tub_t *(*tubminors)[TUBMAXMINS];
- extern tub_t *(*(*tubirqs)[256])[256];
- extern unsigned char tub_ascebc[256];
- extern unsigned char tub_ebcasc[256];
- extern unsigned char tub_ebcgraf[64];
- extern int tubdebug;
- extern int fs3270_major;
- extern int tty3270_major;
- extern int tty3270_proc_misc;
- extern enum tubwhat tty3270_proc_what;
- extern struct tty_driver tty3270_driver;
- #ifdef CONFIG_DEVFS_FS
- extern devfs_handle_t fs3270_devfs_dir;
- extern void fs3270_devfs_register(tub_t *);
- extern void fs3270_devfs_unregister(tub_t *);
- #endif
- #ifndef spin_trylock_irqsave
- #define spin_trylock_irqsave(lock, flags)
- ({
- int success;
- __save_flags(flags);
- __cli();
- success = spin_trylock(lock);
- if (success == 0)
- __restore_flags(flags);
- success;
- })
- #endif /* if not spin_trylock_irqsave */
- #ifndef s390irq_spin_trylock_irqsave
- #define s390irq_spin_trylock_irqsave(irq, flags)
- spin_trylock_irqsave(&(ioinfo[irq]->irq_lock), flags)
- #endif /* if not s390irq_spin_trylock_irqsave */
- #define TUBLOCK(irq, flags)
- s390irq_spin_lock_irqsave(irq, flags)
- #define TUBTRYLOCK(irq, flags)
- s390irq_spin_trylock_irqsave(irq, flags)
- #define TUBUNLOCK(irq, flags)
- s390irq_spin_unlock_irqrestore(irq, flags)
- /*
- * Find tub_t * given fullscreen device's irq (subchannel number)
- */
- extern tub_t *tubfindbyirq(int);
- #define IRQ2TUB(irq) tubfindbyirq(irq)
- /*
- * Find tub_t * given fullscreen device's inode pointer
- * This algorithm takes into account /dev/3270/tub.
- */
- extern inline tub_t *INODE2TUB(struct inode *ip)
- {
- unsigned int minor = MINOR(ip->i_rdev);
- tub_t *tubp = NULL;
- if (minor == 0 && current->tty != NULL) {
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
- #ifdef CONFIG_TN3270_CONSOLE
- if (tub3270_con_tubp != NULL &&
- current->tty->device == S390_CONSOLE_DEV)
- minor = tub3270_con_tubp->minor;
- else
- #endif
- #endif
- if (MAJOR(current->tty->device) == IBM_TTY3270_MAJOR)
- minor = MINOR(current->tty->device);
- }
- if (minor <= tubnummins && minor > 0)
- tubp = (*tubminors)[minor];
- return tubp;
- }
- /*
- * Find tub_t * given non-fullscreen (tty) device's tty_struct pointer
- */
- extern inline tub_t *TTY2TUB(struct tty_struct *tty)
- {
- unsigned int minor = MINOR(tty->device);
- tub_t *tubp = NULL;
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
- #ifdef CONFIG_TN3270_CONSOLE
- if (tty->device == S390_CONSOLE_DEV)
- tubp = tub3270_con_tubp;
- else
- #endif
- #endif
- if (minor <= tubnummins && minor > 0)
- tubp = (*tubminors)[minor];
- return tubp;
- }
- extern void tub_inc_use_count(void);
- extern void tub_dec_use_count(void);
- extern int tub3270_movedata(bcb_t *, bcb_t *, int);
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
- extern int tubmakemin(int, dev_info_t *);
- #else
- extern int tubmakemin(int, s390_dev_info_t *);
- #endif
- extern int tub3270_con_copy(tub_t *);
- extern int tty3270_rcl_init(tub_t *);
- extern int tty3270_rcl_set(tub_t *, char *, int);
- extern void tty3270_rcl_fini(tub_t *);
- extern int tty3270_rcl_get(tub_t *, char *, int, int);
- extern void tty3270_rcl_put(tub_t *, char *, int);
- extern void tty3270_rcl_sync(tub_t *);
- extern void tty3270_rcl_purge(tub_t *);
- extern int tty3270_rcl_resize(tub_t *, int);
- extern int tty3270_size(tub_t *, long *);
- extern int tty3270_aid_init(tub_t *);
- extern void tty3270_aid_fini(tub_t *);
- extern void tty3270_aid_reinit(tub_t *);
- extern int tty3270_aid_get(tub_t *, int, int *, char **);
- extern int tty3270_aid_set(tub_t *, char *, int);
- extern int tty3270_build(tub_t *);
- extern void tty3270_scl_settimer(tub_t *);
- extern void tty3270_scl_resettimer(tub_t *);
- extern int tty3270_scl_set(tub_t *, char *, int);
- extern int tty3270_scl_init(tub_t *tubp);
- extern void tty3270_scl_fini(tub_t *tubp);