diff options
author | Alan Cox <alan@redhat.com> | 2008-07-16 20:55:02 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-21 00:12:36 (GMT) |
commit | 52d417388d154f68f8ab753de03b1fba1814de81 (patch) | |
tree | 7d89c6954fb64fc64f0b64f37c951f79cc56a32b /drivers/char/epca.c | |
parent | 7a4d29f426f17479395980ded8fa5e3bdd6d94e4 (diff) | |
download | linux-fsl-qoriq-52d417388d154f68f8ab753de03b1fba1814de81.tar.xz |
epca: use tty_port
Switch the EPCA driver to include and begin using a tty_port structure
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/epca.c')
-rw-r--r-- | drivers/char/epca.c | 106 |
1 files changed, 53 insertions, 53 deletions
diff --git a/drivers/char/epca.c b/drivers/char/epca.c index aa8e19f..ac9995f 100644 --- a/drivers/char/epca.c +++ b/drivers/char/epca.c @@ -432,7 +432,7 @@ static void pc_close(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&epca_lock, flags); return; } - if (ch->count-- > 1) { + if (ch->port.count-- > 1) { /* Begin channel is open more than once */ /* * Return without doing anything. Someone might still @@ -442,19 +442,19 @@ static void pc_close(struct tty_struct *tty, struct file *filp) return; } /* Port open only once go ahead with shutdown & reset */ - BUG_ON(ch->count < 0); + BUG_ON(ch->port.count < 0); /* * Let the rest of the driver know the channel is being closed. * This becomes important if an open is attempted before close * is finished. */ - ch->asyncflags |= ASYNC_CLOSING; + ch->port.flags |= ASYNC_CLOSING; tty->closing = 1; spin_unlock_irqrestore(&epca_lock, flags); - if (ch->asyncflags & ASYNC_INITIALIZED) { + if (ch->port.flags & ASYNC_INITIALIZED) { /* Setup an event to indicate when the transmit buffer empties */ setup_empty_event(tty, ch); @@ -469,17 +469,17 @@ static void pc_close(struct tty_struct *tty, struct file *filp) spin_lock_irqsave(&epca_lock, flags); tty->closing = 0; ch->event = 0; - ch->tty = NULL; + ch->port.tty = NULL; spin_unlock_irqrestore(&epca_lock, flags); - if (ch->blocked_open) { + if (ch->port.blocked_open) { if (ch->close_delay) msleep_interruptible(jiffies_to_msecs(ch->close_delay)); - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); } - ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED | + ch->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED | ASYNC_CLOSING); - wake_up_interruptible(&ch->close_wait); + wake_up_interruptible(&ch->port.close_wait); } } @@ -489,7 +489,7 @@ static void shutdown(struct channel *ch) struct tty_struct *tty; struct board_chan __iomem *bc; - if (!(ch->asyncflags & ASYNC_INITIALIZED)) + if (!(ch->port.flags & ASYNC_INITIALIZED)) return; spin_lock_irqsave(&epca_lock, flags); @@ -504,7 +504,7 @@ static void shutdown(struct channel *ch) */ if (bc) writeb(0, &bc->idata); - tty = ch->tty; + tty = ch->port.tty; /* If we're a modem control device and HUPCL is on, drop RTS & DTR. */ if (tty->termios->c_cflag & HUPCL) { @@ -518,7 +518,7 @@ static void shutdown(struct channel *ch) * will have to reinitialized. Set a flag to indicate this. */ /* Prevent future Digi programmed interrupts from coming active */ - ch->asyncflags &= ~ASYNC_INITIALIZED; + ch->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&epca_lock, flags); } @@ -538,12 +538,12 @@ static void pc_hangup(struct tty_struct *tty) shutdown(ch); spin_lock_irqsave(&epca_lock, flags); - ch->tty = NULL; + ch->port.tty = NULL; ch->event = 0; - ch->count = 0; - ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED); + ch->port.count = 0; + ch->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED); spin_unlock_irqrestore(&epca_lock, flags); - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); } } @@ -795,7 +795,7 @@ static int block_til_ready(struct tty_struct *tty, unsigned long flags; if (tty_hung_up_p(filp)) { - if (ch->asyncflags & ASYNC_HUP_NOTIFY) + if (ch->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; @@ -806,10 +806,10 @@ static int block_til_ready(struct tty_struct *tty, * If the device is in the middle of being closed, then block until * it's done, and then try again. */ - if (ch->asyncflags & ASYNC_CLOSING) { - interruptible_sleep_on(&ch->close_wait); + if (ch->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&ch->port.close_wait); - if (ch->asyncflags & ASYNC_HUP_NOTIFY) + if (ch->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; else return -ERESTARTSYS; @@ -820,7 +820,7 @@ static int block_til_ready(struct tty_struct *tty, * If non-blocking mode is set, then make the check up front * and then exit. */ - ch->asyncflags |= ASYNC_NORMAL_ACTIVE; + ch->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } if (tty->termios->c_cflag & CLOCAL) @@ -828,24 +828,24 @@ static int block_til_ready(struct tty_struct *tty, /* Block waiting for the carrier detect and the line to become free */ retval = 0; - add_wait_queue(&ch->open_wait, &wait); + add_wait_queue(&ch->port.open_wait, &wait); spin_lock_irqsave(&epca_lock, flags); /* We dec count so that pc_close will know when to free things */ if (!tty_hung_up_p(filp)) - ch->count--; - ch->blocked_open++; + ch->port.count--; + ch->port.blocked_open++; while (1) { set_current_state(TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || - !(ch->asyncflags & ASYNC_INITIALIZED)) { - if (ch->asyncflags & ASYNC_HUP_NOTIFY) + !(ch->port.flags & ASYNC_INITIALIZED)) { + if (ch->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; break; } - if (!(ch->asyncflags & ASYNC_CLOSING) && + if (!(ch->port.flags & ASYNC_CLOSING) && (do_clocal || (ch->imodem & ch->dcd))) break; if (signal_pending(current)) { @@ -864,17 +864,17 @@ static int block_til_ready(struct tty_struct *tty, } __set_current_state(TASK_RUNNING); - remove_wait_queue(&ch->open_wait, &wait); + remove_wait_queue(&ch->port.open_wait, &wait); if (!tty_hung_up_p(filp)) - ch->count++; - ch->blocked_open--; + ch->port.count++; + ch->port.blocked_open--; spin_unlock_irqrestore(&epca_lock, flags); if (retval) return retval; - ch->asyncflags |= ASYNC_NORMAL_ACTIVE; + ch->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -933,7 +933,7 @@ static int pc_open(struct tty_struct *tty, struct file *filp) * necessary because we do not wish to flush and shutdown the channel * until the last app holding the channel open, closes it. */ - ch->count++; + ch->port.count++; /* * Set a kernel structures pointer to our local channel structure. This * way we can get to it when passed only a tty struct. @@ -957,14 +957,14 @@ static int pc_open(struct tty_struct *tty, struct file *filp) writew(head, &bc->rout); /* Set the channels associated tty structure */ - ch->tty = tty; + ch->port.tty = tty; /* * The below routine generally sets up parity, baud, flow control * issues, etc.... It effect both control flags and input flags. */ epcaparam(tty, ch); - ch->asyncflags |= ASYNC_INITIALIZED; + ch->port.flags |= ASYNC_INITIALIZED; memoff(ch); spin_unlock_irqrestore(&epca_lock, flags); @@ -976,7 +976,7 @@ static int pc_open(struct tty_struct *tty, struct file *filp) * waiting for the line... */ spin_lock_irqsave(&epca_lock, flags); - ch->tty = tty; + ch->port.tty = tty; globalwinon(ch); /* Enable Digi Data events */ writeb(1, &bc->idata); @@ -1017,8 +1017,8 @@ static void __exit epca_module_exit(void) } ch = card_ptr[crd]; for (count = 0; count < bd->numports; count++, ch++) { - if (ch && ch->tty) - tty_hangup(ch->tty); + if (ch && ch->port.tty) + tty_hangup(ch->port.tty); } } pci_unregister_driver(&epca_driver); @@ -1427,7 +1427,7 @@ static void post_fep_init(unsigned int crd) ch->boardnum = crd; ch->channelnum = i; ch->magic = EPCA_MAGIC; - ch->tty = NULL; + ch->port.tty = NULL; if (shrinkmem) { fepcmd(ch, SETBUFFER, 32, 0, 0, 0); @@ -1510,10 +1510,10 @@ static void post_fep_init(unsigned int crd) ch->fepstopca = 0; ch->close_delay = 50; - ch->count = 0; - ch->blocked_open = 0; - init_waitqueue_head(&ch->open_wait); - init_waitqueue_head(&ch->close_wait); + ch->port.count = 0; + ch->port.blocked_open = 0; + init_waitqueue_head(&ch->port.open_wait); + init_waitqueue_head(&ch->port.close_wait); spin_unlock_irqrestore(&epca_lock, flags); } @@ -1633,15 +1633,15 @@ static void doevent(int crd) if (event & MODEMCHG_IND) { /* A modem signal change has been indicated */ ch->imodem = mstat; - if (ch->asyncflags & ASYNC_CHECK_CD) { + if (ch->port.flags & ASYNC_CHECK_CD) { /* We are now receiving dcd */ if (mstat & ch->dcd) - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); else /* No dcd; hangup */ pc_sched_event(ch, EPCA_EVENT_HANGUP); } } - tty = ch->tty; + tty = ch->port.tty; if (tty) { if (event & BREAK_IND) { /* A break has been indicated */ @@ -1880,9 +1880,9 @@ static void epcaparam(struct tty_struct *tty, struct channel *ch) * that the driver will wait on carrier detect. */ if (ts->c_cflag & CLOCAL) - ch->asyncflags &= ~ASYNC_CHECK_CD; + ch->port.flags &= ~ASYNC_CHECK_CD; else - ch->asyncflags |= ASYNC_CHECK_CD; + ch->port.flags |= ASYNC_CHECK_CD; mval = ch->m_dtr | ch->m_rts; } /* End CBAUD not detected */ iflag = termios2digi_i(ch, ts->c_iflag); @@ -1972,7 +1972,7 @@ static void receive_data(struct channel *ch) globalwinon(ch); if (ch->statusflags & RXSTOPPED) return; - tty = ch->tty; + tty = ch->port.tty; if (tty) ts = tty->termios; bc = ch->brdchan; @@ -2032,7 +2032,7 @@ static void receive_data(struct channel *ch) globalwinon(ch); writew(tail, &bc->rout); /* Must be called with global data */ - tty_schedule_flip(ch->tty); + tty_schedule_flip(ch->port.tty); } static int info_ioctl(struct tty_struct *tty, struct file *file, @@ -2376,7 +2376,7 @@ static void pc_set_termios(struct tty_struct *tty, struct ktermios *old_termios) if (!(old_termios->c_cflag & CLOCAL) && (tty->termios->c_cflag & CLOCAL)) - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); } /* End if channel valid */ } @@ -2386,13 +2386,13 @@ static void do_softint(struct work_struct *work) struct channel *ch = container_of(work, struct channel, tqueue); /* Called in response to a modem change event */ if (ch && ch->magic == EPCA_MAGIC) { - struct tty_struct *tty = ch->tty; + struct tty_struct *tty = ch->port.tty; if (tty && tty->driver_data) { if (test_and_clear_bit(EPCA_EVENT_HANGUP, &ch->event)) { tty_hangup(tty); - wake_up_interruptible(&ch->open_wait); - ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; + wake_up_interruptible(&ch->port.open_wait); + ch->port.flags &= ~ASYNC_NORMAL_ACTIVE; } } } |