From f8ae47641611fcdf175ab8bbe89054731b16971d Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 16 Jul 2008 21:56:37 +0100 Subject: stallion: use tty_port Switch the stallion driver to use the tty_port structure Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/stallion.c | 160 +++++++++++++++++++++++------------------------ include/linux/stallion.h | 6 +- 2 files changed, 81 insertions(+), 85 deletions(-) diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index d17be10c5d21..0243efb0be95 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -613,17 +613,17 @@ static void stl_cd_change(struct stlport *portp) { unsigned int oldsigs = portp->sigs; - if (!portp->tty) + if (!portp->port.tty) return; portp->sigs = stl_getsignals(portp); if ((portp->sigs & TIOCM_CD) && ((oldsigs & TIOCM_CD) == 0)) - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); if ((oldsigs & TIOCM_CD) && ((portp->sigs & TIOCM_CD) == 0)) - if (portp->flags & ASYNC_CHECK_CD) - tty_hangup(portp->tty); + if (portp->port.flags & ASYNC_CHECK_CD) + tty_hangup(portp->port.tty); } /* @@ -734,11 +734,11 @@ static int stl_open(struct tty_struct *tty, struct file *filp) * On the first open of the device setup the port hardware, and * initialize the per port data structure. */ - portp->tty = tty; + portp->port.tty = tty; tty->driver_data = portp; - portp->refcount++; + portp->port.count++; - if ((portp->flags & ASYNC_INITIALIZED) == 0) { + if ((portp->port.flags & ASYNC_INITIALIZED) == 0) { if (!portp->tx.buf) { portp->tx.buf = kmalloc(STL_TXBUFSIZE, GFP_KERNEL); if (!portp->tx.buf) @@ -752,7 +752,7 @@ static int stl_open(struct tty_struct *tty, struct file *filp) stl_enablerxtx(portp, 1, 1); stl_startrxtx(portp, 1, 0); clear_bit(TTY_IO_ERROR, &tty->flags); - portp->flags |= ASYNC_INITIALIZED; + portp->port.flags |= ASYNC_INITIALIZED; } /* @@ -761,9 +761,9 @@ static int stl_open(struct tty_struct *tty, struct file *filp) * The sleep here does not need interrupt protection since the wakeup * for it is done with the same context. */ - if (portp->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&portp->close_wait); - if (portp->flags & ASYNC_HUP_NOTIFY) + if (portp->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&portp->port.close_wait); + if (portp->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; return -ERESTARTSYS; } @@ -777,7 +777,7 @@ static int stl_open(struct tty_struct *tty, struct file *filp) if ((rc = stl_waitcarrier(portp, filp)) != 0) return rc; - portp->flags |= ASYNC_NORMAL_ACTIVE; + portp->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -801,25 +801,25 @@ static int stl_waitcarrier(struct stlport *portp, struct file *filp) spin_lock_irqsave(&stallion_lock, flags); - if (portp->tty->termios->c_cflag & CLOCAL) + if (portp->port.tty->termios->c_cflag & CLOCAL) doclocal++; portp->openwaitcnt++; if (! tty_hung_up_p(filp)) - portp->refcount--; + portp->port.count--; for (;;) { /* Takes brd_lock internally */ stl_setsignals(portp, 1, 1); if (tty_hung_up_p(filp) || - ((portp->flags & ASYNC_INITIALIZED) == 0)) { - if (portp->flags & ASYNC_HUP_NOTIFY) + ((portp->port.flags & ASYNC_INITIALIZED) == 0)) { + if (portp->port.flags & ASYNC_HUP_NOTIFY) rc = -EBUSY; else rc = -ERESTARTSYS; break; } - if (((portp->flags & ASYNC_CLOSING) == 0) && + if (((portp->port.flags & ASYNC_CLOSING) == 0) && (doclocal || (portp->sigs & TIOCM_CD))) break; if (signal_pending(current)) { @@ -827,11 +827,11 @@ static int stl_waitcarrier(struct stlport *portp, struct file *filp) break; } /* FIXME */ - interruptible_sleep_on(&portp->open_wait); + interruptible_sleep_on(&portp->port.open_wait); } if (! tty_hung_up_p(filp)) - portp->refcount++; + portp->port.count++; portp->openwaitcnt--; spin_unlock_irqrestore(&stallion_lock, flags); @@ -904,15 +904,15 @@ static void stl_close(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&stallion_lock, flags); return; } - if ((tty->count == 1) && (portp->refcount != 1)) - portp->refcount = 1; - if (portp->refcount-- > 1) { + if ((tty->count == 1) && (portp->port.count != 1)) + portp->port.count = 1; + if (portp->port.count-- > 1) { spin_unlock_irqrestore(&stallion_lock, flags); return; } - portp->refcount = 0; - portp->flags |= ASYNC_CLOSING; + portp->port.count = 0; + portp->port.flags |= ASYNC_CLOSING; /* * May want to wait for any data to drain before closing. The BUSY @@ -930,7 +930,7 @@ static void stl_close(struct tty_struct *tty, struct file *filp) spin_lock_irqsave(&stallion_lock, flags); - portp->flags &= ~ASYNC_INITIALIZED; + portp->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&stallion_lock, flags); stl_disableintrs(portp); @@ -949,16 +949,16 @@ static void stl_close(struct tty_struct *tty, struct file *filp) tty_ldisc_flush(tty); tty->closing = 0; - portp->tty = NULL; + portp->port.tty = NULL; if (portp->openwaitcnt) { if (portp->close_delay) msleep_interruptible(jiffies_to_msecs(portp->close_delay)); - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); } - portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&portp->close_wait); + portp->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + wake_up_interruptible(&portp->port.close_wait); } /*****************************************************************************/ @@ -1153,7 +1153,7 @@ static int stl_getserial(struct stlport *portp, struct serial_struct __user *sp) memset(&sio, 0, sizeof(struct serial_struct)); sio.line = portp->portnr; sio.port = portp->ioaddr; - sio.flags = portp->flags; + sio.flags = portp->port.flags; sio.baud_base = portp->baud_base; sio.close_delay = portp->close_delay; sio.closing_wait = portp->closing_wait; @@ -1194,17 +1194,17 @@ static int stl_setserial(struct stlport *portp, struct serial_struct __user *sp) if ((sio.baud_base != portp->baud_base) || (sio.close_delay != portp->close_delay) || ((sio.flags & ~ASYNC_USR_MASK) != - (portp->flags & ~ASYNC_USR_MASK))) + (portp->port.flags & ~ASYNC_USR_MASK))) return -EPERM; } - portp->flags = (portp->flags & ~ASYNC_USR_MASK) | + portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) | (sio.flags & ASYNC_USR_MASK); portp->baud_base = sio.baud_base; portp->close_delay = sio.close_delay; portp->closing_wait = sio.closing_wait; portp->custom_divisor = sio.custom_divisor; - stl_setport(portp, portp->tty->termios); + stl_setport(portp, portp->port.tty->termios); return 0; } @@ -1353,7 +1353,7 @@ static void stl_settermios(struct tty_struct *tty, struct ktermios *old) stl_start(tty); } if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL)) - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); } /*****************************************************************************/ @@ -1438,7 +1438,7 @@ static void stl_hangup(struct tty_struct *tty) if (portp == NULL) return; - portp->flags &= ~ASYNC_INITIALIZED; + portp->port.flags &= ~ASYNC_INITIALIZED; stl_disableintrs(portp); if (tty->termios->c_cflag & HUPCL) stl_setsignals(portp, 0, 0); @@ -1452,10 +1452,10 @@ static void stl_hangup(struct tty_struct *tty) portp->tx.head = NULL; portp->tx.tail = NULL; } - portp->tty = NULL; - portp->flags &= ~ASYNC_NORMAL_ACTIVE; - portp->refcount = 0; - wake_up_interruptible(&portp->open_wait); + portp->port.tty = NULL; + portp->port.flags &= ~ASYNC_NORMAL_ACTIVE; + portp->port.count = 0; + wake_up_interruptible(&portp->port.open_wait); } /*****************************************************************************/ @@ -1814,8 +1814,8 @@ static int __devinit stl_initports(struct stlbrd *brdp, struct stlpanel *panelp) portp->baud_base = STL_BAUDBASE; portp->close_delay = STL_CLOSEDELAY; portp->closing_wait = 30 * HZ; - init_waitqueue_head(&portp->open_wait); - init_waitqueue_head(&portp->close_wait); + init_waitqueue_head(&portp->port.open_wait); + init_waitqueue_head(&portp->port.close_wait); portp->stats.brd = portp->brdnr; portp->stats.panel = portp->panelnr; portp->stats.port = portp->portnr; @@ -1840,8 +1840,8 @@ static void stl_cleanup_panels(struct stlbrd *brdp) portp = panelp->ports[k]; if (portp == NULL) continue; - if (portp->tty != NULL) - stl_hangup(portp->tty); + if (portp->port.tty != NULL) + stl_hangup(portp->port.tty); kfree(portp->tx.buf); kfree(portp); } @@ -2513,7 +2513,7 @@ static int stl_getportstats(struct stlport *portp, comstats_t __user *cp) } portp->stats.state = portp->istate; - portp->stats.flags = portp->flags; + portp->stats.flags = portp->port.flags; portp->stats.hwid = portp->hwid; portp->stats.ttystate = 0; @@ -2524,16 +2524,16 @@ static int stl_getportstats(struct stlport *portp, comstats_t __user *cp) portp->stats.rxbuffered = 0; spin_lock_irqsave(&stallion_lock, flags); - if (portp->tty != NULL) - if (portp->tty->driver_data == portp) { - portp->stats.ttystate = portp->tty->flags; + if (portp->port.tty != NULL) + if (portp->port.tty->driver_data == portp) { + portp->stats.ttystate = portp->port.tty->flags; /* No longer available as a statistic */ - portp->stats.rxbuffered = 1; /*portp->tty->flip.count; */ - if (portp->tty->termios != NULL) { - portp->stats.cflags = portp->tty->termios->c_cflag; - portp->stats.iflags = portp->tty->termios->c_iflag; - portp->stats.oflags = portp->tty->termios->c_oflag; - portp->stats.lflags = portp->tty->termios->c_lflag; + portp->stats.rxbuffered = 1; /*portp->port.tty->flip.count; */ + if (portp->port.tty->termios != NULL) { + portp->stats.cflags = portp->port.tty->termios->c_cflag; + portp->stats.iflags = portp->port.tty->termios->c_iflag; + portp->stats.oflags = portp->port.tty->termios->c_oflag; + portp->stats.lflags = portp->port.tty->termios->c_lflag; } } spin_unlock_irqrestore(&stallion_lock, flags); @@ -2939,15 +2939,15 @@ static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp) } baudrate = stl_baudrates[baudrate]; if ((tiosp->c_cflag & CBAUD) == B38400) { - if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) baudrate = 57600; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) baudrate = 115200; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) baudrate = 230400; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) baudrate = 460800; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) baudrate = (portp->baud_base / portp->custom_divisor); } if (baudrate > STL_CD1400MAXBAUD) @@ -2969,9 +2969,9 @@ static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp) mcor1 |= MCOR1_DCD; mcor2 |= MCOR2_DCD; sreron |= SRER_MODEM; - portp->flags |= ASYNC_CHECK_CD; + portp->port.flags |= ASYNC_CHECK_CD; } else - portp->flags &= ~ASYNC_CHECK_CD; + portp->port.flags &= ~ASYNC_CHECK_CD; /* * Setup cd1400 enhanced modes if we can. In particular we want to @@ -3242,7 +3242,7 @@ static void stl_cd1400flowctrl(struct stlport *portp, int state) if (portp == NULL) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -3304,7 +3304,7 @@ static void stl_cd1400sendflow(struct stlport *portp, int state) if (portp == NULL) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -3503,8 +3503,8 @@ static void stl_cd1400txisr(struct stlpanel *panelp, int ioaddr) if ((len == 0) || ((len < STL_TXBUFLOW) && (test_bit(ASYI_TXLOW, &portp->istate) == 0))) { set_bit(ASYI_TXLOW, &portp->istate); - if (portp->tty) - tty_wakeup(portp->tty); + if (portp->port.tty) + tty_wakeup(portp->port.tty); } if (len == 0) { @@ -3568,7 +3568,7 @@ static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr) return; } portp = panelp->ports[(ioack >> 3)]; - tty = portp->tty; + tty = portp->port.tty; if ((ioack & ACK_TYPMASK) == ACK_TYPRXGOOD) { outb((RDCR + portp->uartaddr), ioaddr); @@ -3613,7 +3613,7 @@ static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr) if (portp->rxmarkmsk & status) { if (status & ST_BREAK) { status = TTY_BREAK; - if (portp->flags & ASYNC_SAK) { + if (portp->port.flags & ASYNC_SAK) { do_SAK(tty); BRDENABLE(portp->brdnr, portp->pagenr); } @@ -3899,15 +3899,15 @@ static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp) } baudrate = stl_baudrates[baudrate]; if ((tiosp->c_cflag & CBAUD) == B38400) { - if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) baudrate = 57600; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) baudrate = 115200; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) baudrate = 230400; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) baudrate = 460800; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) baudrate = (portp->baud_base / portp->custom_divisor); } if (baudrate > STL_SC26198MAXBAUD) @@ -3922,11 +3922,11 @@ static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp) * Check what form of modem signaling is required and set it up. */ if (tiosp->c_cflag & CLOCAL) { - portp->flags &= ~ASYNC_CHECK_CD; + portp->port.flags &= ~ASYNC_CHECK_CD; } else { iopr |= IOPR_DCDCOS; imron |= IR_IOPORT; - portp->flags |= ASYNC_CHECK_CD; + portp->port.flags |= ASYNC_CHECK_CD; } /* @@ -4174,7 +4174,7 @@ static void stl_sc26198flowctrl(struct stlport *portp, int state) if (portp == NULL) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -4243,7 +4243,7 @@ static void stl_sc26198sendflow(struct stlport *portp, int state) if (portp == NULL) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -4421,8 +4421,8 @@ static void stl_sc26198txisr(struct stlport *portp) if ((len == 0) || ((len < STL_TXBUFLOW) && (test_bit(ASYI_TXLOW, &portp->istate) == 0))) { set_bit(ASYI_TXLOW, &portp->istate); - if (portp->tty) - tty_wakeup(portp->tty); + if (portp->port.tty) + tty_wakeup(portp->port.tty); } if (len == 0) { @@ -4475,7 +4475,7 @@ static void stl_sc26198rxisr(struct stlport *portp, unsigned int iack) pr_debug("stl_sc26198rxisr(portp=%p,iack=%x)\n", portp, iack); - tty = portp->tty; + tty = portp->port.tty; ioaddr = portp->ioaddr; outb(GIBCR, (ioaddr + XP_ADDR)); len = inb(ioaddr + XP_DATA) + 1; @@ -4527,7 +4527,7 @@ static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char struct tty_struct *tty; unsigned int ioaddr; - tty = portp->tty; + tty = portp->port.tty; ioaddr = portp->ioaddr; if (status & SR_RXPARITY) @@ -4544,7 +4544,7 @@ static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char if (portp->rxmarkmsk & status) { if (status & SR_RXBREAK) { status = TTY_BREAK; - if (portp->flags & ASYNC_SAK) { + if (portp->port.flags & ASYNC_SAK) { do_SAK(tty); BRDENABLE(portp->brdnr, portp->pagenr); } diff --git a/include/linux/stallion.h b/include/linux/stallion.h index 0424d75a5aaa..336af33c6ea4 100644 --- a/include/linux/stallion.h +++ b/include/linux/stallion.h @@ -69,6 +69,7 @@ struct stlrq { */ struct stlport { unsigned long magic; + struct tty_port port; unsigned int portnr; unsigned int panelnr; unsigned int brdnr; @@ -76,12 +77,10 @@ struct stlport { int uartaddr; unsigned int pagenr; unsigned long istate; - int flags; int baud_base; int custom_divisor; int close_delay; int closing_wait; - int refcount; int openwaitcnt; int brklen; unsigned int sigs; @@ -92,9 +91,6 @@ struct stlport { unsigned long clk; unsigned long hwid; void *uartp; - struct tty_struct *tty; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; comstats_t stats; struct stlrq tx; }; -- cgit v1.2.3