[PATCH] Char: mxser_new, comments cleanup
mxser_new, comments cleanup - Remove commented code, since we have version control. - Remove comments containing "following added by..." and "above added by,..". It's useless. - Align other comments. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>hifive-unleashed-5.1
Jiri Slaby
Linus Torvalds
parent
925e9c1c08
commit
e079f495b7
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@ -346,8 +346,6 @@ static int CheckIsMoxaMust(int io)
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return MOXA_OTHER_UART;
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}
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/* above is modified by Victor Yu. 08-15-2002 */
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static void process_txrx_fifo(struct mxser_port *info)
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{
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int i;
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@ -581,12 +579,10 @@ static int mxser_change_speed(struct mxser_port *info,
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fcr = 0;
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} else {
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fcr = UART_FCR_ENABLE_FIFO;
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/* following add by Victor Yu. 08-30-2002 */
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if (info->board->chip_flag) {
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fcr |= MOXA_MUST_FCR_GDA_MODE_ENABLE;
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SET_MOXA_MUST_FIFO_VALUE(info);
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} else {
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/* above add by Victor Yu. 08-30-2002 */
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switch (info->rx_trigger) {
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case 1:
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fcr |= UART_FCR_TRIGGER_1;
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@ -612,19 +608,8 @@ static int mxser_change_speed(struct mxser_port *info,
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info->IER |= UART_IER_MSI;
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if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
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info->MCR |= UART_MCR_AFE;
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/* status = mxser_get_msr(info->ioaddr, 0, info->port); */
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/*
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save_flags(flags);
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cli();
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status = inb(baseaddr + UART_MSR);
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restore_flags(flags);
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*/
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/* mxser_check_modem_status(info, status); */
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} else {
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/* status = mxser_get_msr(info->ioaddr, 0, info->port); */
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/* MX_LOCK(&info->slock); */
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status = inb(info->ioaddr + UART_MSR);
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/* MX_UNLOCK(&info->slock); */
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if (info->tty->hw_stopped) {
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if (status & UART_MSR_CTS) {
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info->tty->hw_stopped = 0;
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@ -692,7 +677,6 @@ static int mxser_change_speed(struct mxser_port *info,
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UART_LSR_FE;
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}
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}
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/* following add by Victor Yu. 09-02-2002 */
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if (info->board->chip_flag) {
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spin_lock_irqsave(&info->slock, flags);
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SET_MOXA_MUST_XON1_VALUE(info->ioaddr, START_CHAR(info->tty));
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@ -707,18 +691,8 @@ static int mxser_change_speed(struct mxser_port *info,
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} else {
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DISABLE_MOXA_MUST_TX_SOFTWARE_FLOW_CONTROL(info->ioaddr);
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}
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/*
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if ( I_IXANY(info->tty) ) {
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info->MCR |= MOXA_MUST_MCR_XON_ANY;
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ENABLE_MOXA_MUST_XON_ANY_FLOW_CONTROL(info->ioaddr);
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} else {
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info->MCR &= ~MOXA_MUST_MCR_XON_ANY;
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DISABLE_MOXA_MUST_XON_ANY_FLOW_CONTROL(info->ioaddr);
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}
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*/
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spin_unlock_irqrestore(&info->slock, flags);
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}
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/* above add by Victor Yu. 09-02-2002 */
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outb(fcr, info->ioaddr + UART_FCR); /* set fcr */
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@ -852,12 +826,9 @@ static int mxser_startup(struct mxser_port *info)
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* Finally, enable interrupts
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*/
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info->IER = UART_IER_MSI | UART_IER_RLSI | UART_IER_RDI;
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/* info->IER = UART_IER_RLSI | UART_IER_RDI; */
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/* following add by Victor Yu. 08-30-2002 */
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if (info->board->chip_flag)
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info->IER |= MOXA_MUST_IER_EGDAI;
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/* above add by Victor Yu. 08-30-2002 */
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outb(info->IER, info->ioaddr + UART_IER); /* enable interrupts */
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/*
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@ -917,13 +888,11 @@ static void mxser_shutdown(struct mxser_port *info)
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outb(info->MCR, info->ioaddr + UART_MCR);
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/* clear Rx/Tx FIFO's */
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/* following add by Victor Yu. 08-30-2002 */
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if (info->board->chip_flag)
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outb(UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT |
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MOXA_MUST_FCR_GDA_MODE_ENABLE,
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info->ioaddr + UART_FCR);
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else
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/* above add by Victor Yu. 08-30-2002 */
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outb(UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
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info->ioaddr + UART_FCR);
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@ -935,10 +904,8 @@ static void mxser_shutdown(struct mxser_port *info)
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info->flags &= ~ASYNC_INITIALIZED;
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/* following add by Victor Yu. 09-23-2002 */
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if (info->board->chip_flag)
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SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr);
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/* above add by Victor Yu. 09-23-2002 */
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spin_unlock_irqrestore(&info->slock, flags);
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}
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@ -991,12 +958,7 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
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info->session = process_session(current);
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info->pgrp = process_group(current);
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/*
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status = mxser_get_msr(info->base, 0, info->port);
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mxser_check_modem_status(info, status);
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*/
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/* unmark here for very high baud rate (ex. 921600 bps) used */
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/* unmark here for very high baud rate (ex. 921600 bps) used */
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tty->low_latency = 1;
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return 0;
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}
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@ -1070,9 +1032,7 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
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info->IER &= ~UART_IER_RLSI;
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if (info->board->chip_flag)
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info->IER &= ~MOXA_MUST_RECV_ISR;
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/* by William
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info->read_status_mask &= ~UART_LSR_DR;
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*/
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if (info->flags & ASYNC_INITIALIZED) {
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outb(info->IER, info->ioaddr + UART_IER);
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/*
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@ -1135,8 +1095,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
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total += c;
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}
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if (info->xmit_cnt && !tty->stopped
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/*&& !(info->IER & UART_IER_THRI)*/) {
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if (info->xmit_cnt && !tty->stopped) {
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if (!tty->hw_stopped ||
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(info->type == PORT_16550A) ||
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(info->board->chip_flag)) {
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@ -1167,7 +1126,7 @@ static void mxser_put_char(struct tty_struct *tty, unsigned char ch)
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info->xmit_head &= SERIAL_XMIT_SIZE - 1;
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info->xmit_cnt++;
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spin_unlock_irqrestore(&info->slock, flags);
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if (!tty->stopped /*&& !(info->IER & UART_IER_THRI)*/) {
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if (!tty->stopped) {
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if (!tty->hw_stopped ||
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(info->type == PORT_16550A) ||
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info->board->chip_flag) {
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@ -1231,14 +1190,12 @@ static void mxser_flush_buffer(struct tty_struct *tty)
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spin_lock_irqsave(&info->slock, flags);
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info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
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/* below added by shinhay */
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fcr = inb(info->ioaddr + UART_FCR);
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outb((fcr | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT),
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info->ioaddr + UART_FCR);
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outb(fcr, info->ioaddr + UART_FCR);
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spin_unlock_irqrestore(&info->slock, flags);
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/* above added by shinhay */
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tty_wakeup(tty);
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}
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@ -1309,10 +1266,9 @@ static int mxser_set_serial_info(struct mxser_port *info,
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info->closing_wait = new_serial.closing_wait * HZ / 100;
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info->tty->low_latency =
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(info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
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info->tty->low_latency = 0; /* (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; */
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info->tty->low_latency = 0;
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}
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/* added by casper, 3/17/2000, for mouse */
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info->type = new_serial.type;
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process_txrx_fifo(info);
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@ -1430,7 +1386,6 @@ static int mxser_tiocmset(struct tty_struct *tty, struct file *file,
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static int mxser_program_mode(int port)
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{
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int id, i, j, n;
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/* unsigned long flags; */
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spin_lock(&gm_lock);
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outb(0, port);
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@ -1440,7 +1395,6 @@ static int mxser_program_mode(int port)
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(void)inb(port);
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outb(0, port);
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(void)inb(port);
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/* restore_flags(flags); */
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spin_unlock(&gm_lock);
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id = inb(port + 1) & 0x1F;
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@ -1623,7 +1577,6 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
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continue;
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status = mxser_get_msr(port->ioaddr, 0, i);
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/* mxser_check_modem_status(port, status); */
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if (status & UART_MSR_TERI)
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port->icount.rng++;
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@ -1707,7 +1660,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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if (tty->index == MXSER_PORTS)
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return mxser_ioctl_special(cmd, argp);
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/* following add by Victor Yu. 01-05-2004 */
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if (cmd == MOXA_SET_OP_MODE || cmd == MOXA_GET_OP_MODE) {
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int p;
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unsigned long opmode;
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@ -1739,7 +1691,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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}
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return 0;
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}
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/* above add by Victor Yu. 01-05-2004 */
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if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT && cmd != TIOCGICOUNT &&
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test_bit(TTY_IO_ERROR, &tty->flags))
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@ -1829,7 +1780,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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cnow = info->icount;
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spin_unlock_irqrestore(&info->slock, flags);
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p_cuser = argp;
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/* modified by casper 1/11/2000 */
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if (put_user(cnow.frame, &p_cuser->frame))
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return -EFAULT;
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if (put_user(cnow.brk, &p_cuser->brk))
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@ -1855,7 +1805,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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info->mon_data.rxcnt = 0;
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info->mon_data.txcnt = 0;
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return 0;
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/* (above) added by James. */
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case MOXA_ASPP_SETBAUD:{
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long baud;
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if (get_user(baud, (long __user *)argp))
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@ -1886,8 +1835,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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case MOXA_ASPP_MON: {
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int mcr, status;
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/* info->mon_data.ser_param = tty->termios->c_cflag; */
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status = mxser_get_msr(info->ioaddr, 1, tty->index);
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mxser_check_modem_status(info, status);
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@ -1944,7 +1891,6 @@ static void mxser_stoprx(struct tty_struct *tty)
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info->ldisc_stop_rx = 1;
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if (I_IXOFF(tty)) {
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/* following add by Victor Yu. 09-02-2002 */
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if (info->board->chip_flag) {
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info->IER &= ~MOXA_MUST_RECV_ISR;
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outb(info->IER, info->ioaddr + UART_IER);
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@ -1981,7 +1927,6 @@ static void mxser_unthrottle(struct tty_struct *tty)
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if (info->x_char)
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info->x_char = 0;
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else {
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/* following add by Victor Yu. 09-02-2002 */
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if (info->board->chip_flag) {
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info->IER |= MOXA_MUST_RECV_ISR;
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outb(info->IER, info->ioaddr + UART_IER);
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@ -2025,8 +1970,7 @@ static void mxser_start(struct tty_struct *tty)
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unsigned long flags;
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spin_lock_irqsave(&info->slock, flags);
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if (info->xmit_cnt && info->xmit_buf
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/* && !(info->IER & UART_IER_THRI) */) {
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if (info->xmit_cnt && info->xmit_buf) {
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outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
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info->IER |= UART_IER_THRI;
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outb(info->IER, info->ioaddr + UART_IER);
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@ -2051,18 +1995,16 @@ static void mxser_set_termios(struct tty_struct *tty, struct termios *old_termio
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}
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}
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/* Handle sw stopped */
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/* Handle sw stopped */
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if ((old_termios->c_iflag & IXON) &&
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!(tty->termios->c_iflag & IXON)) {
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tty->stopped = 0;
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/* following add by Victor Yu. 09-02-2002 */
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if (info->board->chip_flag) {
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spin_lock_irqsave(&info->slock, flags);
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DISABLE_MOXA_MUST_RX_SOFTWARE_FLOW_CONTROL(info->ioaddr);
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spin_unlock_irqrestore(&info->slock, flags);
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}
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/* above add by Victor Yu. 09-02-2002 */
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mxser_start(tty);
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}
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@ -2131,7 +2073,6 @@ static void mxser_wait_until_sent(struct tty_struct *tty, int timeout)
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#endif
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}
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/*
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* This routine is called by tty_hangup() when a hangup is signaled.
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*/
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@ -2148,8 +2089,6 @@ void mxser_hangup(struct tty_struct *tty)
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wake_up_interruptible(&info->open_wait);
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}
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/* added by James 03-12-2004. */
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/*
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* mxser_rs_break() --- routine which turns the break handling on or off
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*/
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@ -2168,8 +2107,6 @@ static void mxser_rs_break(struct tty_struct *tty, int break_state)
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spin_unlock_irqrestore(&info->slock, flags);
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}
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/* (above) added by James. */
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static void mxser_receive_chars(struct mxser_port *port, int *status)
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{
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struct tty_struct *tty = port->tty;
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@ -2183,36 +2120,26 @@ static void mxser_receive_chars(struct mxser_port *port, int *status)
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spin_lock_irqsave(&port->slock, flags);
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recv_room = tty->receive_room;
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if ((recv_room == 0) && (!port->ldisc_stop_rx)) {
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/* mxser_throttle(tty); */
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if ((recv_room == 0) && (!port->ldisc_stop_rx))
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mxser_stoprx(tty);
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/* return; */
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}
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/* following add by Victor Yu. 09-02-2002 */
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if (port->board->chip_flag != MOXA_OTHER_UART) {
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if (*status & UART_LSR_SPECIAL)
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goto intr_old;
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/* following add by Victor Yu. 02-11-2004 */
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if (port->board->chip_flag == MOXA_MUST_MU860_HWID &&
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(*status & MOXA_MUST_LSR_RERR))
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goto intr_old;
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/* above add by Victor Yu. 02-14-2004 */
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if (*status & MOXA_MUST_LSR_RERR)
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goto intr_old;
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gdl = inb(port->ioaddr + MOXA_MUST_GDL_REGISTER);
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/* add by Victor Yu. 02-11-2004 */
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if (port->board->chip_flag == MOXA_MUST_MU150_HWID)
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gdl &= MOXA_MUST_GDL_MASK;
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if (gdl >= recv_room) {
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if (!port->ldisc_stop_rx) {
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/* mxser_throttle(tty); */
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if (!port->ldisc_stop_rx)
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mxser_stoprx(tty);
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}
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/* return; */
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}
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while (gdl--) {
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ch = inb(port->ioaddr + UART_RX);
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@ -2221,20 +2148,16 @@ static void mxser_receive_chars(struct mxser_port *port, int *status)
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}
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goto end_intr;
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}
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intr_old:
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/* above add by Victor Yu. 09-02-2002 */
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intr_old:
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do {
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if (max-- < 0)
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break;
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ch = inb(port->ioaddr + UART_RX);
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/* following add by Victor Yu. 09-02-2002 */
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if (port->board->chip_flag && (*status & UART_LSR_OE)
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/*&& !(*status&UART_LSR_DR) */)
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if (port->board->chip_flag && (*status & UART_LSR_OE))
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outb(0x23, port->ioaddr + UART_FCR);
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*status &= port->read_status_mask;
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/* above add by Victor Yu. 09-02-2002 */
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if (*status & port->ignore_status_mask) {
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if (++ignored > 100)
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break;
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@ -2243,50 +2166,38 @@ static void mxser_receive_chars(struct mxser_port *port, int *status)
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if (*status & UART_LSR_SPECIAL) {
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if (*status & UART_LSR_BI) {
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flag = TTY_BREAK;
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/* added by casper 1/11/2000 */
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port->icount.brk++;
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if (port->flags & ASYNC_SAK)
|
||||
do_SAK(tty);
|
||||
} else if (*status & UART_LSR_PE) {
|
||||
flag = TTY_PARITY;
|
||||
/* added by casper 1/11/2000 */
|
||||
port->icount.parity++;
|
||||
} else if (*status & UART_LSR_FE) {
|
||||
flag = TTY_FRAME;
|
||||
/* added by casper 1/11/2000 */
|
||||
port->icount.frame++;
|
||||
} else if (*status & UART_LSR_OE) {
|
||||
flag = TTY_OVERRUN;
|
||||
/* added by casper 1/11/2000 */
|
||||
port->icount.overrun++;
|
||||
}
|
||||
}
|
||||
tty_insert_flip_char(tty, ch, flag);
|
||||
cnt++;
|
||||
if (cnt >= recv_room) {
|
||||
if (!port->ldisc_stop_rx) {
|
||||
/* mxser_throttle(tty); */
|
||||
if (!port->ldisc_stop_rx)
|
||||
mxser_stoprx(tty);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* following add by Victor Yu. 09-02-2002 */
|
||||
if (port->board->chip_flag)
|
||||
break;
|
||||
|
||||
/* mask by Victor Yu. 09-02-2002
|
||||
*status = inb(port->ioaddr + UART_LSR) & port->read_status_mask;
|
||||
*/
|
||||
/* following add by Victor Yu. 09-02-2002 */
|
||||
*status = inb(port->ioaddr + UART_LSR);
|
||||
/* above add by Victor Yu. 09-02-2002 */
|
||||
} while (*status & UART_LSR_DR);
|
||||
|
||||
end_intr: /* add by Victor Yu. 09-02-2002 */
|
||||
end_intr:
|
||||
mxvar_log.rxcnt[port->tty->index] += cnt;
|
||||
port->mon_data.rxcnt += cnt;
|
||||
port->mon_data.up_rxcnt += cnt;
|
||||
|
|
@ -2308,8 +2219,6 @@ static void mxser_transmit_chars(struct mxser_port *port)
|
|||
mxvar_log.txcnt[port->tty->index]++;
|
||||
port->mon_data.txcnt++;
|
||||
port->mon_data.up_txcnt++;
|
||||
|
||||
/* added by casper 1/11/2000 */
|
||||
port->icount.tx++;
|
||||
goto unlock;
|
||||
}
|
||||
|
|
@ -2337,11 +2246,8 @@ static void mxser_transmit_chars(struct mxser_port *port)
|
|||
} while (--count > 0);
|
||||
mxvar_log.txcnt[port->tty->index] += (cnt - port->xmit_cnt);
|
||||
|
||||
/* added by James 03-12-2004. */
|
||||
port->mon_data.txcnt += (cnt - port->xmit_cnt);
|
||||
port->mon_data.up_txcnt += (cnt - port->xmit_cnt);
|
||||
|
||||
/* added by casper 1/11/2000 */
|
||||
port->icount.tx += (cnt - port->xmit_cnt);
|
||||
|
||||
if (port->xmit_cnt < WAKEUP_CHARS) {
|
||||
|
|
@ -2369,8 +2275,6 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|||
unsigned int int_cnt;
|
||||
int handled = IRQ_NONE;
|
||||
|
||||
/* spin_lock(&gm_lock); */
|
||||
|
||||
for (i = 0; i < MXSER_BOARDS; i++)
|
||||
if (dev_id == &mxser_boards[i]) {
|
||||
brd = dev_id;
|
||||
|
|
@ -2397,7 +2301,6 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|||
|
||||
int_cnt = 0;
|
||||
do {
|
||||
/* following add by Victor Yu. 09-13-2002 */
|
||||
iir = inb(port->ioaddr + UART_IIR);
|
||||
if (iir & UART_IIR_NO_INT)
|
||||
break;
|
||||
|
|
@ -2408,9 +2311,7 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|||
inb(port->ioaddr + UART_MSR);
|
||||
break;
|
||||
}
|
||||
/* above add by Victor Yu. 09-13-2002 */
|
||||
|
||||
/* following add by Victor Yu. 09-02-2002 */
|
||||
status = inb(port->ioaddr + UART_LSR);
|
||||
|
||||
if (status & UART_LSR_PE)
|
||||
|
|
@ -2424,12 +2325,6 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|||
port->err_shadow |= NPPI_NOTIFY_BREAK;
|
||||
|
||||
if (port->board->chip_flag) {
|
||||
/*
|
||||
if ( (status & 0x02) && !(status & 0x01) ) {
|
||||
outb(port->ioaddr+UART_FCR, 0x23);
|
||||
continue;
|
||||
}
|
||||
*/
|
||||
if (iir == MOXA_MUST_IIR_GDA ||
|
||||
iir == MOXA_MUST_IIR_RDA ||
|
||||
iir == MOXA_MUST_IIR_RTO ||
|
||||
|
|
@ -2438,8 +2333,6 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|||
&status);
|
||||
|
||||
} else {
|
||||
/* above add by Victor Yu. 09-02-2002 */
|
||||
|
||||
status &= port->read_status_mask;
|
||||
if (status & UART_LSR_DR)
|
||||
mxser_receive_chars(port,
|
||||
|
|
@ -2449,14 +2342,11 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|||
if (msr & UART_MSR_ANY_DELTA)
|
||||
mxser_check_modem_status(port, msr);
|
||||
|
||||
/* following add by Victor Yu. 09-13-2002 */
|
||||
if (port->board->chip_flag) {
|
||||
if (iir == 0x02 && (status &
|
||||
UART_LSR_THRE))
|
||||
mxser_transmit_chars(port);
|
||||
} else {
|
||||
/* above add by Victor Yu. 09-13-2002 */
|
||||
|
||||
if (status & UART_LSR_THRE)
|
||||
mxser_transmit_chars(port);
|
||||
}
|
||||
|
|
@ -2466,8 +2356,7 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|||
break; /* Prevent infinite loops */
|
||||
}
|
||||
|
||||
irq_stop:
|
||||
/* spin_unlock(&gm_lock); */
|
||||
irq_stop:
|
||||
return handled;
|
||||
}
|
||||
|
||||
|
|
@ -2639,10 +2528,10 @@ static int __init mxser_get_ISA_conf(int cap, struct mxser_board *brd)
|
|||
for (i = 7, bits = 0x0100; i >= 0; i--, bits <<= 1) {
|
||||
if (regs[12] & bits) {
|
||||
brd->ports[i].baud_base = 921600;
|
||||
brd->ports[i].max_baud = 921600; /* add by Victor Yu. 09-04-2002 */
|
||||
brd->ports[i].max_baud = 921600;
|
||||
} else {
|
||||
brd->ports[i].baud_base = 115200;
|
||||
brd->ports[i].max_baud = 115200; /* add by Victor Yu. 09-04-2002 */
|
||||
brd->ports[i].max_baud = 115200;
|
||||
}
|
||||
}
|
||||
scratch2 = inb(cap + UART_LCR) & (~UART_LCR_DLAB);
|
||||
|
|
|
|||
Loading…
Reference in New Issue