diff options
Diffstat (limited to 'drivers/char/rio/riotty.c')
| -rw-r--r-- | drivers/char/rio/riotty.c | 179 |
1 files changed, 49 insertions, 130 deletions
diff --git a/drivers/char/rio/riotty.c b/drivers/char/rio/riotty.c index 0ca431b4c474..204267613c9c 100644 --- a/drivers/char/rio/riotty.c +++ b/drivers/char/rio/riotty.c @@ -56,15 +56,12 @@ static char *_riotty_c_sccs_ = "@(#)riotty.c 1.3"; #include "linux_compat.h" #include "rio_linux.h" -#include "typdef.h" #include "pkt.h" #include "daemon.h" #include "rio.h" #include "riospace.h" -#include "top.h" #include "cmdpkt.h" #include "map.h" -#include "riotypes.h" #include "rup.h" #include "port.h" #include "riodrvr.h" @@ -77,58 +74,18 @@ static char *_riotty_c_sccs_ = "@(#)riotty.c 1.3"; #include "unixrup.h" #include "board.h" #include "host.h" -#include "error.h" #include "phb.h" #include "link.h" #include "cmdblk.h" #include "route.h" -#include "control.h" #include "cirrus.h" #include "rioioctl.h" #include "param.h" -#include "list.h" -#include "sam.h" static void RIOClearUp(struct Port *PortP); -int RIOShortCommand(struct rio_info *p, struct Port *PortP, int command, int len, int arg); - - -extern int conv_vb[]; /* now defined in ttymgr.c */ -extern int conv_bv[]; /* now defined in ttymgr.c */ - -/* -** 16.09.1998 ARG - Fix to build riotty.k.o for Modular Kernel Support -** -** ep.def.h is necessary for Modular Kernel Support -** DO NOT place any kernel 'extern's after this line -** or this source file will not build riotty.k.o -*/ -#ifdef uLYNX -#include <ep.def.h> -#endif -#ifdef NEED_THIS2 -static struct old_sgttyb default_sg = { - B19200, B19200, /* input and output speed */ - 'H' - '@', /* erase char */ - -1, /* 2nd erase char */ - 'U' - '@', /* kill char */ - ECHO | CRMOD, /* mode */ - 'C' - '@', /* interrupt character */ - '\\' - '@', /* quit char */ - 'Q' - '@', /* start char */ - 'S' - '@', /* stop char */ - 'D' - '@', /* EOF */ - -1, /* brk */ - (LCRTBS | LCRTERA | LCRTKIL | LCTLECH), /* local mode word */ - 'Z' - '@', /* process stop */ - 'Y' - '@', /* delayed stop */ - 'R' - '@', /* reprint line */ - 'O' - '@', /* flush output */ - 'W' - '@', /* word erase */ - 'V' - '@' /* literal next char */ -}; -#endif +/* Below belongs in func.h */ +int RIOShortCommand(struct rio_info *p, struct Port *PortP, int command, int len, int arg); extern struct rio_info *p; @@ -137,7 +94,6 @@ extern struct rio_info *p; int riotopen(struct tty_struct *tty, struct file *filp) { unsigned int SysPort; - int Modem; int repeat_this = 250; struct Port *PortP; /* pointer to the port structure */ unsigned long flags; @@ -151,7 +107,6 @@ int riotopen(struct tty_struct *tty, struct file *filp) tty->driver_data = NULL; SysPort = rio_minor(tty); - Modem = rio_ismodem(tty); if (p->RIOFailed) { rio_dprintk(RIO_DEBUG_TTY, "System initialisation failed\n"); @@ -159,7 +114,7 @@ int riotopen(struct tty_struct *tty, struct file *filp) return -ENXIO; } - rio_dprintk(RIO_DEBUG_TTY, "port open SysPort %d (%s) (mapped:%d)\n", SysPort, Modem ? "Modem" : "tty", p->RIOPortp[SysPort]->Mapped); + rio_dprintk(RIO_DEBUG_TTY, "port open SysPort %d (mapped:%d)\n", SysPort, p->RIOPortp[SysPort]->Mapped); /* ** Validate that we have received a legitimate request. @@ -305,15 +260,12 @@ int riotopen(struct tty_struct *tty, struct file *filp) /* PortP->gs.xmit_cnt = 0; */ rio_spin_unlock_irqrestore(&PortP->portSem, flags); -#ifdef NEED_THIS - ttyseth(PortP, tp, (struct old_sgttyb *) &default_sg); -#endif /* Someone explain to me why this delay/config is here. If I read the docs correctly the "open" command piggybacks the parameters immediately. -- REW */ - RIOParam(PortP, OPEN, Modem, OK_TO_SLEEP); /* Open the port */ + RIOParam(PortP, OPEN, 1, OK_TO_SLEEP); /* Open the port */ rio_spin_lock_irqsave(&PortP->portSem, flags); /* @@ -321,20 +273,6 @@ int riotopen(struct tty_struct *tty, struct file *filp) */ while (!(PortP->PortState & PORT_ISOPEN) && !p->RIOHalted) { rio_dprintk(RIO_DEBUG_TTY, "Waiting for PORT_ISOPEN-currently %x\n", PortP->PortState); -/* -** 15.10.1998 ARG - ESIL 0759 -** (Part) fix for port being trashed when opened whilst RTA "disconnected" -** Take out the limited wait - now wait for ever or until user -** bangs us out. -** - if (repeat_this -- <= 0) { - rio_dprint(RIO_DEBUG_TTY, ("Waiting for open to finish timed out.\n")); - RIOPreemptiveCmd(p, PortP, FCLOSE ); - rio_spin_unlock_irqrestore(&PortP->portSem, flags); - return -EINTR; - } -** -*/ rio_spin_unlock_irqrestore(&PortP->portSem, flags); if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) { rio_dprintk(RIO_DEBUG_TTY, "Waiting for open to finish broken by signal\n"); @@ -354,74 +292,58 @@ int riotopen(struct tty_struct *tty, struct file *filp) } rio_dprintk(RIO_DEBUG_TTY, "PORT_ISOPEN found\n"); } -#ifdef MODEM_SUPPORT - if (Modem) { - rio_dprintk(RIO_DEBUG_TTY, "Modem - test for carrier\n"); + rio_dprintk(RIO_DEBUG_TTY, "Modem - test for carrier\n"); + /* + ** ACTION + ** insert test for carrier here. -- ??? + ** I already see that test here. What's the deal? -- REW + */ + if ((PortP->gs.tty->termios->c_cflag & CLOCAL) || (PortP->ModemState & MSVR1_CD)) { + rio_dprintk(RIO_DEBUG_TTY, "open(%d) Modem carr on\n", SysPort); /* - ** ACTION - ** insert test for carrier here. -- ??? - ** I already see that test here. What's the deal? -- REW + tp->tm.c_state |= CARR_ON; + wakeup((caddr_t) &tp->tm.c_canq); */ - if ((PortP->gs.tty->termios->c_cflag & CLOCAL) || (PortP->ModemState & MSVR1_CD)) { - rio_dprintk(RIO_DEBUG_TTY, "open(%d) Modem carr on\n", SysPort); + PortP->State |= RIO_CARR_ON; + wake_up_interruptible(&PortP->gs.open_wait); + } else { /* no carrier - wait for DCD */ /* - tp->tm.c_state |= CARR_ON; - wakeup((caddr_t) &tp->tm.c_canq); - */ - PortP->State |= RIO_CARR_ON; - wake_up_interruptible(&PortP->gs.open_wait); - } else { /* no carrier - wait for DCD */ - + while (!(PortP->gs.tty->termios->c_state & CARR_ON) && + !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted ) + */ + while (!(PortP->State & RIO_CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted) { + rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr on\n", SysPort); /* - while (!(PortP->gs.tty->termios->c_state & CARR_ON) && - !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted ) + PortP->gs.tty->termios->c_state |= WOPEN; */ - while (!(PortP->State & RIO_CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted) { - - rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr on\n", SysPort); + PortP->State |= RIO_WOPEN; + rio_spin_unlock_irqrestore(&PortP->portSem, flags); + if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) { + /* + ** ACTION: verify that this is a good thing + ** to do here. -- ??? + ** I think it's OK. -- REW + */ + rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr broken by signal\n", SysPort); + RIOPreemptiveCmd(p, PortP, FCLOSE); /* - PortP->gs.tty->termios->c_state |= WOPEN; + tp->tm.c_state &= ~WOPEN; */ - PortP->State |= RIO_WOPEN; + PortP->State &= ~RIO_WOPEN; rio_spin_unlock_irqrestore(&PortP->portSem, flags); - if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) - { - /* - ** ACTION: verify that this is a good thing - ** to do here. -- ??? - ** I think it's OK. -- REW - */ - rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr broken by signal\n", SysPort); - RIOPreemptiveCmd(p, PortP, FCLOSE); - /* - tp->tm.c_state &= ~WOPEN; - */ - PortP->State &= ~RIO_WOPEN; - rio_spin_unlock_irqrestore(&PortP->portSem, flags); - func_exit(); - return -EINTR; - } + func_exit(); + return -EINTR; } - PortP->State &= ~RIO_WOPEN; } - if (p->RIOHalted) - goto bombout; - rio_dprintk(RIO_DEBUG_TTY, "Setting RIO_MOPEN\n"); - PortP->State |= RIO_MOPEN; - } else -#endif - { - /* - ** ACTION - ** Direct line open - force carrier (will probably mean - ** that sleeping Modem line fubar) - */ - PortP->State |= RIO_LOPEN; + PortP->State &= ~RIO_WOPEN; } + if (p->RIOHalted) + goto bombout; + rio_dprintk(RIO_DEBUG_TTY, "Setting RIO_MOPEN\n"); + PortP->State |= RIO_MOPEN; - if (p->RIOHalted) { + if (p->RIOHalted) goto bombout; - } rio_dprintk(RIO_DEBUG_TTY, "high level open done\n"); @@ -453,23 +375,21 @@ int riotclose(void *ptr) unsigned long end_time; struct tty_struct *tty; unsigned long flags; - int Modem; int rv = 0; rio_dprintk(RIO_DEBUG_TTY, "port close SysPort %d\n", PortP->PortNum); /* PortP = p->RIOPortp[SysPort]; */ - rio_dprintk(RIO_DEBUG_TTY, "Port is at address 0x%p\n", PortP); + rio_dprintk(RIO_DEBUG_TTY, "Port is at address %p\n", PortP); /* tp = PortP->TtyP; *//* Get tty */ tty = PortP->gs.tty; - rio_dprintk(RIO_DEBUG_TTY, "TTY is at address 0x%p\n", tty); + rio_dprintk(RIO_DEBUG_TTY, "TTY is at address %p\n", tty); if (PortP->gs.closing_wait) end_time = jiffies + PortP->gs.closing_wait; else end_time = jiffies + MAX_SCHEDULE_TIMEOUT; - Modem = rio_ismodem(tty); rio_spin_lock_irqsave(&PortP->portSem, flags); /* @@ -493,7 +413,7 @@ int riotclose(void *ptr) /* ** clear the open bits for this device */ - PortP->State &= (Modem ? ~RIO_MOPEN : ~RIO_LOPEN); + PortP->State &= ~RIO_MOPEN; PortP->State &= ~RIO_CARR_ON; PortP->ModemState &= ~MSVR1_CD; /* @@ -613,7 +533,7 @@ int riotclose(void *ptr) if (PortP->statsGather) PortP->closes++; - close_end: +close_end: /* XXX: Why would a "DELETED" flag be reset here? I'd have thought that a "deleted" flag means that the port was permanently gone, but here we can make it reappear by it @@ -629,8 +549,7 @@ int riotclose(void *ptr) -static void RIOClearUp(PortP) -struct Port *PortP; +static void RIOClearUp(struct Port *PortP) { rio_dprintk(RIO_DEBUG_TTY, "RIOHalted set\n"); PortP->Config = 0; /* Direct semaphore */ @@ -657,7 +576,7 @@ struct Port *PortP; */ int RIOShortCommand(struct rio_info *p, struct Port *PortP, int command, int len, int arg) { - PKT *PacketP; + struct PKT *PacketP; int retries = 20; /* at 10 per second -> 2 seconds */ unsigned long flags; |