Char: moxa, timer cleanup
- schedule timer even after some card is installed, not after insmod - cleanup timer functions Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Tested-by: Oyvind Aabling <Oyvind.Aabling@uni-c.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>hifive-unleashed-5.1
Jiri Slaby
Linus Torvalds
parent
810ab09b2f
commit
0bcc4caadc
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@ -215,7 +215,6 @@ static void moxa_receive_data(struct moxa_port *);
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*/
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static int MoxaDriverIoctl(struct tty_struct *, unsigned int, unsigned long);
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static int MoxaDriverPoll(void);
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static int MoxaPortsOfCard(int);
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static void MoxaPortEnable(struct moxa_port *);
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static void MoxaPortDisable(struct moxa_port *);
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static int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t);
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@ -715,6 +714,9 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
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brd->ready = 1;
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if (!timer_pending(&moxaTimer))
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mod_timer(&moxaTimer, jiffies + HZ / 50);
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return 0;
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err_free:
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kfree(brd->ports);
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@ -856,8 +858,6 @@ static int __init moxa_init(void)
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return -1;
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}
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mod_timer(&moxaTimer, jiffies + HZ / 50);
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/* Find the boards defined from module args. */
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#ifdef MODULE
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{
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@ -1285,10 +1285,10 @@ static void moxa_hangup(struct tty_struct *tty)
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static void moxa_poll(unsigned long ignored)
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{
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register int card;
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struct moxa_port *ch;
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struct tty_struct *tp;
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int i, ports;
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struct tty_struct *tty;
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unsigned int card;
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int i;
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del_timer(&moxaTimer);
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@ -1296,36 +1296,38 @@ static void moxa_poll(unsigned long ignored)
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mod_timer(&moxaTimer, jiffies + HZ / 50);
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return;
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}
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for (card = 0; card < MAX_BOARDS; card++) {
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if ((ports = MoxaPortsOfCard(card)) <= 0)
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if (!moxa_boards[card].ready)
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continue;
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ch = moxa_boards[card].ports;
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for (i = 0; i < ports; i++, ch++) {
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for (i = 0; i < moxa_boards[card].numPorts; i++, ch++) {
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if ((ch->asyncflags & ASYNC_INITIALIZED) == 0)
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continue;
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if (!(ch->statusflags & THROTTLE) &&
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(MoxaPortRxQueue(ch) > 0))
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moxa_receive_data(ch);
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if ((tp = ch->tty) == 0)
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tty = ch->tty;
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if (tty == NULL)
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continue;
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if (ch->statusflags & LOWWAIT) {
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if (MoxaPortTxQueue(ch) <= WAKEUP_CHARS) {
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if (!tp->stopped) {
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if (!tty->stopped) {
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ch->statusflags &= ~LOWWAIT;
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tty_wakeup(tp);
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tty_wakeup(tty);
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}
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}
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}
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if (!I_IGNBRK(tp) && (MoxaPortResetBrkCnt(ch) > 0)) {
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tty_insert_flip_char(tp, 0, TTY_BREAK);
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tty_schedule_flip(tp);
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if (!I_IGNBRK(tty) && (MoxaPortResetBrkCnt(ch) > 0)) {
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tty_insert_flip_char(tty, 0, TTY_BREAK);
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tty_schedule_flip(tty);
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}
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if (MoxaPortDCDChange(ch)) {
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if (ch->asyncflags & ASYNC_CHECK_CD) {
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if (MoxaPortDCDON(ch))
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wake_up_interruptible(&ch->open_wait);
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else {
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tty_hangup(tp);
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tty_hangup(tty);
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wake_up_interruptible(&ch->open_wait);
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ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
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}
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@ -1671,15 +1673,14 @@ copy:
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return -ENOIOCTLCMD;
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}
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int MoxaDriverPoll(void)
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static int MoxaDriverPoll(void)
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{
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struct moxa_board_conf *brd;
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struct moxa_port *p;
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register ushort temp;
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register int card;
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void __iomem *ofsAddr;
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void __iomem *ip;
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int port, ports;
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unsigned int port, ports, card;
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ushort temp;
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for (card = 0; card < MAX_BOARDS; card++) {
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brd = &moxa_boards[card];
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@ -1729,19 +1730,8 @@ int MoxaDriverPoll(void)
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}
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}
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moxaLowWaterChk = 0;
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return (0);
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}
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/*****************************************************************************
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* Card level function: *
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* 1. MoxaPortsOfCard(int cardno); *
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*****************************************************************************/
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int MoxaPortsOfCard(int cardno)
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{
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if (moxa_boards[cardno].boardType == 0)
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return (0);
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return (moxa_boards[cardno].numPorts);
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return 0;
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}
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/*****************************************************************************
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@ -1812,16 +1802,6 @@ int MoxaPortsOfCard(int cardno)
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* -1 : no any Moxa card.
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*
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*
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* Function 4: Get the ports of this card.
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* Syntax:
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* int MoxaPortsOfCard(int cardno);
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*
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* int cardno : card number (0 - 3)
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*
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* return: 0 : this card is invalid
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* 8/16/24/32
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*
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*
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* Function 6: Enable this port to start Tx/Rx data.
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* Syntax:
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* void MoxaPortEnable(int port);
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