staging: dgnc: dgnc_neo.c Comment style modifications
Make modifications for comment style Signed-off-by: Walt Feasel <waltfeasel@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Walt Feasel
Greg Kroah-Hartman
parent
29e9b7bf0d
commit
4e5f26be37
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@ -107,7 +107,8 @@ static inline void neo_set_cts_flow_control(struct channel_t *ch)
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/* Turn off auto Xon flow control */
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efr &= ~UART_17158_EFR_IXON;
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/* Why? Because Exar's spec says we have to zero it
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/*
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* Why? Because Exar's spec says we have to zero it
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* out before setting it
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*/
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writeb(0, &ch->ch_neo_uart->efr);
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@ -145,7 +146,8 @@ static inline void neo_set_rts_flow_control(struct channel_t *ch)
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ier &= ~UART_17158_IER_XOFF;
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efr &= ~UART_17158_EFR_IXOFF;
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/* Why? Because Exar's spec says we have to zero it
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/*
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* Why? Because Exar's spec says we have to zero it
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* out before setting it
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*/
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writeb(0, &ch->ch_neo_uart->efr);
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@ -185,7 +187,8 @@ static inline void neo_set_ixon_flow_control(struct channel_t *ch)
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/* Turn on auto Xon flow control */
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efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXON);
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/* Why? Because Exar's spec says we have to zero it
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/*
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* Why? Because Exar's spec says we have to zero it
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* out before setting it
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*/
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writeb(0, &ch->ch_neo_uart->efr);
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@ -225,7 +228,8 @@ static inline void neo_set_ixoff_flow_control(struct channel_t *ch)
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ier |= UART_17158_IER_XOFF;
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efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXOFF);
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/* Why? Because Exar's spec says we have to zero it
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/*
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* Why? Because Exar's spec says we have to zero it
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* out before setting it
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*/
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writeb(0, &ch->ch_neo_uart->efr);
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@ -268,7 +272,8 @@ static inline void neo_set_no_input_flow_control(struct channel_t *ch)
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else
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efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXOFF);
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/* Why? Because Exar's spec says we have to zero
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/*
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* Why? Because Exar's spec says we have to zero
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* it out before setting it
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*/
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writeb(0, &ch->ch_neo_uart->efr);
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@ -308,7 +313,8 @@ static inline void neo_set_no_output_flow_control(struct channel_t *ch)
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else
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efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXON);
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/* Why? Because Exar's spec says we have to zero it
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/*
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* Why? Because Exar's spec says we have to zero it
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* out before setting it
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*/
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writeb(0, &ch->ch_neo_uart->efr);
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@ -351,9 +357,8 @@ static inline void neo_set_new_start_stop_chars(struct channel_t *ch)
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neo_pci_posting_flush(ch->ch_bd);
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}
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/*
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* No locks are assumed to be held when calling this function.
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*/
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/* No locks are assumed to be held when calling this function. */
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static inline void neo_clear_break(struct channel_t *ch, int force)
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{
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unsigned long flags;
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@ -381,9 +386,8 @@ static inline void neo_clear_break(struct channel_t *ch, int force)
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spin_unlock_irqrestore(&ch->ch_lock, flags);
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}
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/*
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* Parse the ISR register.
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*/
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/* Parse the ISR register. */
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static inline void neo_parse_isr(struct dgnc_board *brd, uint port)
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{
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struct channel_t *ch;
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@ -412,8 +416,8 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port)
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if (isr & (UART_17158_IIR_RDI_TIMEOUT | UART_IIR_RDI)) {
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/* Read data from uart -> queue */
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neo_copy_data_from_uart_to_queue(ch);
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/* Call our tty layer to enforce queue
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/*
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* Call our tty layer to enforce queue
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* flow control if needed.
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*/
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spin_lock_irqsave(&ch->ch_lock, flags);
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@ -438,7 +442,8 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port)
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* one it was, so we can suspend or resume data flow.
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*/
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if (cause == UART_17158_XON_DETECT) {
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/* Is output stopped right now, if so,
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/*
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* Is output stopped right now, if so,
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* resume it
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*/
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if (brd->channels[port]->ch_flags & CH_STOP) {
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@ -609,9 +614,8 @@ static void neo_param(struct tty_struct *tty)
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if (!bd || bd->magic != DGNC_BOARD_MAGIC)
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return;
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/*
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* If baud rate is zero, flush queues, and set mval to drop DTR.
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*/
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/* If baud rate is zero, flush queues, and set mval to drop DTR. */
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if ((ch->ch_c_cflag & (CBAUD)) == 0) {
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ch->ch_r_head = 0;
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ch->ch_r_tail = 0;
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@ -672,7 +676,8 @@ static void neo_param(struct tty_struct *tty)
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4800, 9600, 19200, 38400 }
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};
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/* Only use the TXPrint baud rate if the terminal unit
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/*
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* Only use the TXPrint baud rate if the terminal unit
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* is NOT open
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*/
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if (!(ch->ch_tun.un_flags & UN_ISOPEN) &&
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@ -797,7 +802,8 @@ static void neo_param(struct tty_struct *tty)
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if (ch->ch_digi.digi_flags & CTSPACE || ch->ch_c_cflag & CRTSCTS) {
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neo_set_cts_flow_control(ch);
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} else if (ch->ch_c_iflag & IXON) {
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/* If start/stop is set to disable, then we should
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/*
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* If start/stop is set to disable, then we should
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* disable flow control
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*/
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if ((ch->ch_startc == _POSIX_VDISABLE) ||
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@ -812,7 +818,8 @@ static void neo_param(struct tty_struct *tty)
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if (ch->ch_digi.digi_flags & RTSPACE || ch->ch_c_cflag & CRTSCTS) {
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neo_set_rts_flow_control(ch);
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} else if (ch->ch_c_iflag & IXOFF) {
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/* If start/stop is set to disable, then we should
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/*
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* If start/stop is set to disable, then we should
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* disable flow control
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*/
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if ((ch->ch_startc == _POSIX_VDISABLE) ||
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@ -840,9 +847,8 @@ static void neo_param(struct tty_struct *tty)
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neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr));
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}
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/*
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* Our board poller function.
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*/
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/* Our board poller function. */
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static void neo_tasklet(unsigned long data)
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{
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struct dgnc_board *bd = (struct dgnc_board *)data;
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@ -867,9 +873,8 @@ static void neo_tasklet(unsigned long data)
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*/
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spin_lock_irqsave(&bd->bd_intr_lock, flags);
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/*
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* If board is ready, parse deeper to see if there is anything to do.
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*/
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/* If board is ready, parse deeper to see if there is anything to do. */
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if ((state == BOARD_READY) && (ports > 0)) {
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/* Loop on each port */
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for (i = 0; i < ports; i++) {
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@ -997,9 +1002,9 @@ static irqreturn_t neo_intr(int irq, void *voidbrd)
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break;
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case UART_17158_RX_LINE_STATUS:
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/*
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* RXRDY and RX LINE Status (logic OR of LSR[4:1])
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*/
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/* RXRDY and RX LINE Status (logic OR of LSR[4:1]) */
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neo_parse_lsr(brd, port);
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break;
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@ -1022,9 +1027,9 @@ static irqreturn_t neo_intr(int irq, void *voidbrd)
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break;
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case UART_17158_MSR:
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/*
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* MSR or flow control was seen.
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*/
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/* MSR or flow control was seen. */
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neo_parse_isr(brd, port);
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break;
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@ -1041,9 +1046,8 @@ static irqreturn_t neo_intr(int irq, void *voidbrd)
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port++;
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}
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/*
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* Schedule tasklet to more in-depth servicing at a better time.
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*/
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/* Schedule tasklet to more in-depth servicing at a better time. */
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tasklet_schedule(&brd->helper_tasklet);
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spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
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@ -1238,9 +1242,8 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch)
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ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
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}
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/*
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* Discard character if we are ignoring the error mask.
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*/
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/* Discard character if we are ignoring the error mask. */
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if (linestatus & error_mask) {
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unsigned char discard;
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@ -1279,9 +1282,8 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch)
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ch->ch_rxcount++;
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}
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/*
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* Write new final heads to channel structure.
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*/
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/* Write new final heads to channel structure. */
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ch->ch_r_head = head & RQUEUEMASK;
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ch->ch_e_head = head & EQUEUEMASK;
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@ -1412,9 +1414,8 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch)
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(ch->ch_flags & CH_BREAK_SENDING))
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goto exit_unlock;
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/*
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* If FIFOs are disabled. Send data directly to txrx register
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*/
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/* If FIFOs are disabled. Send data directly to txrx register */
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if (!(ch->ch_flags & CH_FIFO_ENABLED)) {
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unsigned char lsrbits = readb(&ch->ch_neo_uart->lsr);
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@ -1458,9 +1459,8 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch)
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goto exit_unlock;
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}
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/*
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* We have to do it this way, because of the EXAR TXFIFO count bug.
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*/
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/* We have to do it this way, because of the EXAR TXFIFO count bug. */
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if ((ch->ch_bd->dvid & 0xf0) < UART_XR17E158_DVID) {
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if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM)))
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goto exit_unlock;
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@ -1645,9 +1645,8 @@ static void neo_send_stop_character(struct channel_t *ch)
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}
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}
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/*
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* neo_uart_init
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*/
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/* neo_uart_init */
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static void neo_uart_init(struct channel_t *ch)
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{
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writeb(0, &ch->ch_neo_uart->ier);
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@ -1668,9 +1667,8 @@ static void neo_uart_init(struct channel_t *ch)
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neo_pci_posting_flush(ch->ch_bd);
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}
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/*
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* Make the UART completely turn off.
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*/
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/* Make the UART completely turn off. */
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static void neo_uart_off(struct channel_t *ch)
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{
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/* Turn off UART enhanced bits */
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@ -1705,9 +1703,8 @@ static uint neo_get_uart_bytes_left(struct channel_t *ch)
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/* Channel lock MUST be held by the calling function! */
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static void neo_send_break(struct channel_t *ch, int msecs)
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{
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/*
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* If we receive a time of 0, this means turn off the break.
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*/
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/* If we receive a time of 0, this means turn off the break. */
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if (msecs == 0) {
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if (ch->ch_flags & CH_BREAK_SENDING) {
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unsigned char temp = readb(&ch->ch_neo_uart->lcr);
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