amiserial: switch to ->[sg]et_serial()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
parent
0aad5ad563
commit
b129cbc99b
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@ -996,63 +996,55 @@ static void rs_unthrottle(struct tty_struct * tty)
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* ------------------------------------------------------------
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*/
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static int get_serial_info(struct tty_struct *tty, struct serial_state *state,
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struct serial_struct __user * retinfo)
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static int get_serial_info(struct tty_struct *tty, struct serial_struct *ss)
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{
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struct serial_struct tmp;
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struct serial_state *state = tty->driver_data;
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memset(&tmp, 0, sizeof(tmp));
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tty_lock(tty);
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tmp.line = tty->index;
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tmp.port = state->port;
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tmp.flags = state->tport.flags;
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tmp.xmit_fifo_size = state->xmit_fifo_size;
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tmp.baud_base = state->baud_base;
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tmp.close_delay = state->tport.close_delay;
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tmp.closing_wait = state->tport.closing_wait;
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tmp.custom_divisor = state->custom_divisor;
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ss->line = tty->index;
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ss->port = state->port;
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ss->flags = state->tport.flags;
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ss->xmit_fifo_size = state->xmit_fifo_size;
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ss->baud_base = state->baud_base;
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ss->close_delay = state->tport.close_delay;
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ss->closing_wait = state->tport.closing_wait;
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ss->custom_divisor = state->custom_divisor;
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tty_unlock(tty);
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if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
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return -EFAULT;
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return 0;
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}
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static int set_serial_info(struct tty_struct *tty, struct serial_state *state,
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struct serial_struct __user * new_info)
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static int set_serial_info(struct tty_struct *tty, struct serial_struct *ss)
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{
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struct serial_state *state = tty->driver_data;
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struct tty_port *port = &state->tport;
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struct serial_struct new_serial;
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bool change_spd;
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int retval = 0;
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if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
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return -EFAULT;
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tty_lock(tty);
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change_spd = ((new_serial.flags ^ port->flags) & ASYNC_SPD_MASK) ||
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new_serial.custom_divisor != state->custom_divisor;
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if (new_serial.irq || new_serial.port != state->port ||
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new_serial.xmit_fifo_size != state->xmit_fifo_size) {
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change_spd = ((ss->flags ^ port->flags) & ASYNC_SPD_MASK) ||
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ss->custom_divisor != state->custom_divisor;
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if (ss->irq || ss->port != state->port ||
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ss->xmit_fifo_size != state->xmit_fifo_size) {
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tty_unlock(tty);
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return -EINVAL;
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}
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if (!serial_isroot()) {
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if ((new_serial.baud_base != state->baud_base) ||
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(new_serial.close_delay != port->close_delay) ||
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(new_serial.xmit_fifo_size != state->xmit_fifo_size) ||
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((new_serial.flags & ~ASYNC_USR_MASK) !=
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if ((ss->baud_base != state->baud_base) ||
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(ss->close_delay != port->close_delay) ||
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(ss->xmit_fifo_size != state->xmit_fifo_size) ||
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((ss->flags & ~ASYNC_USR_MASK) !=
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(port->flags & ~ASYNC_USR_MASK))) {
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tty_unlock(tty);
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return -EPERM;
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}
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port->flags = ((port->flags & ~ASYNC_USR_MASK) |
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(new_serial.flags & ASYNC_USR_MASK));
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state->custom_divisor = new_serial.custom_divisor;
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(ss->flags & ASYNC_USR_MASK));
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state->custom_divisor = ss->custom_divisor;
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goto check_and_exit;
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}
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if (new_serial.baud_base < 9600) {
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if (ss->baud_base < 9600) {
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tty_unlock(tty);
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return -EINVAL;
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}
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@ -1062,19 +1054,19 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state,
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* At this point, we start making changes.....
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*/
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state->baud_base = new_serial.baud_base;
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state->baud_base = ss->baud_base;
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port->flags = ((port->flags & ~ASYNC_FLAGS) |
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(new_serial.flags & ASYNC_FLAGS));
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state->custom_divisor = new_serial.custom_divisor;
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port->close_delay = new_serial.close_delay * HZ/100;
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port->closing_wait = new_serial.closing_wait * HZ/100;
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(ss->flags & ASYNC_FLAGS));
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state->custom_divisor = ss->custom_divisor;
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port->close_delay = ss->close_delay * HZ/100;
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port->closing_wait = ss->closing_wait * HZ/100;
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port->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
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check_and_exit:
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if (tty_port_initialized(port)) {
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if (change_spd) {
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/* warn about deprecation unless clearing */
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if (new_serial.flags & ASYNC_SPD_MASK)
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if (ss->flags & ASYNC_SPD_MASK)
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dev_warn_ratelimited(tty->dev, "use of SPD flags is deprecated\n");
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change_speed(tty, state, NULL);
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}
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@ -1084,7 +1076,6 @@ check_and_exit:
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return retval;
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}
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/*
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* get_lsr_info - get line status register info
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*
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@ -1224,18 +1215,13 @@ static int rs_ioctl(struct tty_struct *tty,
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if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
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return -ENODEV;
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if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
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(cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
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if ((cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
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(cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
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if (tty_io_error(tty))
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return -EIO;
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}
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switch (cmd) {
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case TIOCGSERIAL:
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return get_serial_info(tty, info, argp);
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case TIOCSSERIAL:
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return set_serial_info(tty, info, argp);
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case TIOCSERCONFIG:
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return 0;
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@ -1607,6 +1593,8 @@ static const struct tty_operations serial_ops = {
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.tiocmget = rs_tiocmget,
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.tiocmset = rs_tiocmset,
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.get_icount = rs_get_icount,
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.set_serial = set_serial_info,
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.get_serial = get_serial_info,
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.proc_show = rs_proc_show,
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};
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