diff options
Diffstat (limited to 'drivers/staging/dgnc/dgnc_tty.c')
| -rw-r--r-- | drivers/staging/dgnc/dgnc_tty.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index f91eaa1c3b67..b8f865018950 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -60,10 +60,6 @@ static void dgnc_tty_unthrottle(struct tty_struct *tty); static void dgnc_tty_flush_chars(struct tty_struct *tty); static void dgnc_tty_flush_buffer(struct tty_struct *tty); static void dgnc_tty_hangup(struct tty_struct *tty); -static int dgnc_set_modem_info(struct channel_t *ch, unsigned int command, - unsigned int __user *value); -static int dgnc_get_modem_info(struct channel_t *ch, - unsigned int __user *value); static int dgnc_tty_tiocmget(struct tty_struct *tty); static int dgnc_tty_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); @@ -1701,106 +1697,6 @@ static void dgnc_tty_send_xchar(struct tty_struct *tty, char c) spin_unlock_irqrestore(&ch->ch_lock, flags); } -/* Return modem signals to ld. */ -static inline int dgnc_get_mstat(struct channel_t *ch) -{ - unsigned char mstat; - unsigned long flags; - int rc; - - if (!ch) - return -ENXIO; - - spin_lock_irqsave(&ch->ch_lock, flags); - - mstat = ch->ch_mostat | ch->ch_mistat; - - spin_unlock_irqrestore(&ch->ch_lock, flags); - - rc = 0; - - if (mstat & UART_MCR_DTR) - rc |= TIOCM_DTR; - if (mstat & UART_MCR_RTS) - rc |= TIOCM_RTS; - if (mstat & UART_MSR_CTS) - rc |= TIOCM_CTS; - if (mstat & UART_MSR_DSR) - rc |= TIOCM_DSR; - if (mstat & UART_MSR_RI) - rc |= TIOCM_RI; - if (mstat & UART_MSR_DCD) - rc |= TIOCM_CD; - - return rc; -} - -/* Return modem signals to ld. */ -static int dgnc_get_modem_info(struct channel_t *ch, - unsigned int __user *value) -{ - return put_user(dgnc_get_mstat(ch), value); -} - -/* Set modem signals, called by ld. */ -static int dgnc_set_modem_info(struct channel_t *ch, - unsigned int command, - unsigned int __user *value) -{ - int rc; - unsigned int arg = 0; - unsigned long flags; - - rc = get_user(arg, value); - if (rc) - return rc; - - switch (command) { - case TIOCMBIS: - if (arg & TIOCM_RTS) - ch->ch_mostat |= UART_MCR_RTS; - - if (arg & TIOCM_DTR) - ch->ch_mostat |= UART_MCR_DTR; - - break; - - case TIOCMBIC: - if (arg & TIOCM_RTS) - ch->ch_mostat &= ~(UART_MCR_RTS); - - if (arg & TIOCM_DTR) - ch->ch_mostat &= ~(UART_MCR_DTR); - - break; - - case TIOCMSET: - - if (arg & TIOCM_RTS) - ch->ch_mostat |= UART_MCR_RTS; - else - ch->ch_mostat &= ~(UART_MCR_RTS); - - if (arg & TIOCM_DTR) - ch->ch_mostat |= UART_MCR_DTR; - else - ch->ch_mostat &= ~(UART_MCR_DTR); - - break; - - default: - return -EINVAL; - } - - spin_lock_irqsave(&ch->ch_lock, flags); - - ch->ch_bd->bd_ops->assert_modem_signals(ch); - - spin_unlock_irqrestore(&ch->ch_lock, flags); - - return 0; -} - /* Ioctl to get the information for ditty. */ static int dgnc_tty_digigeta(struct tty_struct *tty, struct digi_t __user *retinfo) @@ -2184,116 +2080,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, } switch (cmd) { - /* Here are all the standard ioctl's that we MUST implement */ - - case TCSBRK: - /* - * TCSBRK is SVID version: non-zero arg --> no break - * this behaviour is exploited by tcdrain(). - * - * According to POSIX.1 spec (7.2.2.1.2) breaks should be - * between 0.25 and 0.5 seconds so we'll ask for something - * in the middle: 0.375 seconds. - */ - rc = tty_check_change(tty); - spin_unlock_irqrestore(&ch->ch_lock, flags); - if (rc) - return rc; - - rc = ch_bd_ops->drain(tty, 0); - if (rc) - return -EINTR; - - spin_lock_irqsave(&ch->ch_lock, flags); - - if (((cmd == TCSBRK) && (!arg)) || (cmd == TCSBRKP)) - ch_bd_ops->send_break(ch, 250); - - spin_unlock_irqrestore(&ch->ch_lock, flags); - - return 0; - - case TCSBRKP: - /* - * support for POSIX tcsendbreak() - * According to POSIX.1 spec (7.2.2.1.2) breaks should be - * between 0.25 and 0.5 seconds so we'll ask for something - * in the middle: 0.375 seconds. - */ - rc = tty_check_change(tty); - spin_unlock_irqrestore(&ch->ch_lock, flags); - if (rc) - return rc; - - rc = ch_bd_ops->drain(tty, 0); - if (rc) - return -EINTR; - - spin_lock_irqsave(&ch->ch_lock, flags); - - ch_bd_ops->send_break(ch, 250); - - spin_unlock_irqrestore(&ch->ch_lock, flags); - - return 0; - - case TIOCSBRK: - rc = tty_check_change(tty); - spin_unlock_irqrestore(&ch->ch_lock, flags); - if (rc) - return rc; - - rc = ch_bd_ops->drain(tty, 0); - if (rc) - return -EINTR; - - spin_lock_irqsave(&ch->ch_lock, flags); - - ch_bd_ops->send_break(ch, 250); - - spin_unlock_irqrestore(&ch->ch_lock, flags); - - return 0; - - case TIOCCBRK: - /* Do Nothing */ - spin_unlock_irqrestore(&ch->ch_lock, flags); - return 0; - - case TIOCGSOFTCAR: - - spin_unlock_irqrestore(&ch->ch_lock, flags); - - return put_user(C_CLOCAL(tty) ? 1 : 0, - (unsigned long __user *)arg); - - case TIOCSSOFTCAR: - - spin_unlock_irqrestore(&ch->ch_lock, flags); - rc = get_user(arg, (unsigned long __user *)arg); - if (rc) - return rc; - - spin_lock_irqsave(&ch->ch_lock, flags); - tty->termios.c_cflag = ((tty->termios.c_cflag & ~CLOCAL) | - (arg ? CLOCAL : 0)); - ch_bd_ops->param(tty); - spin_unlock_irqrestore(&ch->ch_lock, flags); - - return 0; - - case TIOCMGET: - spin_unlock_irqrestore(&ch->ch_lock, flags); - return dgnc_get_modem_info(ch, uarg); - - case TIOCMBIS: - case TIOCMBIC: - case TIOCMSET: - spin_unlock_irqrestore(&ch->ch_lock, flags); - return dgnc_set_modem_info(ch, cmd, uarg); - /* Here are any additional ioctl's that we want to implement */ - case TCFLSH: /* * The linux tty driver doesn't have a flush @@ -2370,11 +2157,6 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, /* pretend we didn't recognize this */ return -ENOIOCTLCMD; - case TCXONC: - spin_unlock_irqrestore(&ch->ch_lock, flags); - /* Make the ld do it */ - return -ENOIOCTLCMD; - case DIGI_GETA: /* get information for ditty */ spin_unlock_irqrestore(&ch->ch_lock, flags); |