diff options
author | Walt Feasel <waltfeasel@gmail.com> | 2016-11-19 02:08:03 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-19 16:25:11 +0300 |
commit | 4e5f26be370c7c20e78ec04c903952f736ac0005 (patch) | |
tree | 08d74284ad2c43075cb8d7b3f5d1fd28300cadd8 /drivers/staging/dgnc | |
parent | 29e9b7bf0d20f8d05bc271ef0eea040b0e942eb3 (diff) | |
download | linux-4e5f26be370c7c20e78ec04c903952f736ac0005.tar.xz |
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>
Diffstat (limited to 'drivers/staging/dgnc')
-rw-r--r-- | drivers/staging/dgnc/dgnc_neo.c | 111 |
1 files changed, 54 insertions, 57 deletions
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 5becb3741b67..3eefefe53174 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -107,7 +107,8 @@ static inline void neo_set_cts_flow_control(struct channel_t *ch) /* Turn off auto Xon flow control */ efr &= ~UART_17158_EFR_IXON; - /* Why? Because Exar's spec says we have to zero it + /* + * Why? Because Exar's spec says we have to zero it * out before setting it */ writeb(0, &ch->ch_neo_uart->efr); @@ -145,7 +146,8 @@ static inline void neo_set_rts_flow_control(struct channel_t *ch) ier &= ~UART_17158_IER_XOFF; efr &= ~UART_17158_EFR_IXOFF; - /* Why? Because Exar's spec says we have to zero it + /* + * Why? Because Exar's spec says we have to zero it * out before setting it */ writeb(0, &ch->ch_neo_uart->efr); @@ -185,7 +187,8 @@ static inline void neo_set_ixon_flow_control(struct channel_t *ch) /* Turn on auto Xon flow control */ efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXON); - /* Why? Because Exar's spec says we have to zero it + /* + * Why? Because Exar's spec says we have to zero it * out before setting it */ writeb(0, &ch->ch_neo_uart->efr); @@ -225,7 +228,8 @@ static inline void neo_set_ixoff_flow_control(struct channel_t *ch) ier |= UART_17158_IER_XOFF; efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXOFF); - /* Why? Because Exar's spec says we have to zero it + /* + * Why? Because Exar's spec says we have to zero it * out before setting it */ writeb(0, &ch->ch_neo_uart->efr); @@ -268,7 +272,8 @@ static inline void neo_set_no_input_flow_control(struct channel_t *ch) else efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXOFF); - /* Why? Because Exar's spec says we have to zero + /* + * Why? Because Exar's spec says we have to zero * it out before setting it */ writeb(0, &ch->ch_neo_uart->efr); @@ -308,7 +313,8 @@ static inline void neo_set_no_output_flow_control(struct channel_t *ch) else efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXON); - /* Why? Because Exar's spec says we have to zero it + /* + * Why? Because Exar's spec says we have to zero it * out before setting it */ writeb(0, &ch->ch_neo_uart->efr); @@ -351,9 +357,8 @@ static inline void neo_set_new_start_stop_chars(struct channel_t *ch) neo_pci_posting_flush(ch->ch_bd); } -/* - * No locks are assumed to be held when calling this function. - */ +/* No locks are assumed to be held when calling this function. */ + static inline void neo_clear_break(struct channel_t *ch, int force) { unsigned long flags; @@ -381,9 +386,8 @@ static inline void neo_clear_break(struct channel_t *ch, int force) spin_unlock_irqrestore(&ch->ch_lock, flags); } -/* - * Parse the ISR register. - */ +/* Parse the ISR register. */ + static inline void neo_parse_isr(struct dgnc_board *brd, uint port) { struct channel_t *ch; @@ -412,8 +416,8 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port) if (isr & (UART_17158_IIR_RDI_TIMEOUT | UART_IIR_RDI)) { /* Read data from uart -> queue */ neo_copy_data_from_uart_to_queue(ch); - - /* Call our tty layer to enforce queue + /* + * Call our tty layer to enforce queue * flow control if needed. */ spin_lock_irqsave(&ch->ch_lock, flags); @@ -438,7 +442,8 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port) * one it was, so we can suspend or resume data flow. */ if (cause == UART_17158_XON_DETECT) { - /* Is output stopped right now, if so, + /* + * Is output stopped right now, if so, * resume it */ if (brd->channels[port]->ch_flags & CH_STOP) { @@ -609,9 +614,8 @@ static void neo_param(struct tty_struct *tty) if (!bd || bd->magic != DGNC_BOARD_MAGIC) return; - /* - * If baud rate is zero, flush queues, and set mval to drop DTR. - */ + /* If baud rate is zero, flush queues, and set mval to drop DTR. */ + if ((ch->ch_c_cflag & (CBAUD)) == 0) { ch->ch_r_head = 0; ch->ch_r_tail = 0; @@ -672,7 +676,8 @@ static void neo_param(struct tty_struct *tty) 4800, 9600, 19200, 38400 } }; - /* Only use the TXPrint baud rate if the terminal unit + /* + * Only use the TXPrint baud rate if the terminal unit * is NOT open */ if (!(ch->ch_tun.un_flags & UN_ISOPEN) && @@ -797,7 +802,8 @@ static void neo_param(struct tty_struct *tty) if (ch->ch_digi.digi_flags & CTSPACE || ch->ch_c_cflag & CRTSCTS) { neo_set_cts_flow_control(ch); } else if (ch->ch_c_iflag & IXON) { - /* If start/stop is set to disable, then we should + /* + * If start/stop is set to disable, then we should * disable flow control */ if ((ch->ch_startc == _POSIX_VDISABLE) || @@ -812,7 +818,8 @@ static void neo_param(struct tty_struct *tty) if (ch->ch_digi.digi_flags & RTSPACE || ch->ch_c_cflag & CRTSCTS) { neo_set_rts_flow_control(ch); } else if (ch->ch_c_iflag & IXOFF) { - /* If start/stop is set to disable, then we should + /* + * If start/stop is set to disable, then we should * disable flow control */ if ((ch->ch_startc == _POSIX_VDISABLE) || @@ -840,9 +847,8 @@ static void neo_param(struct tty_struct *tty) neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr)); } -/* - * Our board poller function. - */ +/* Our board poller function. */ + static void neo_tasklet(unsigned long data) { struct dgnc_board *bd = (struct dgnc_board *)data; @@ -867,9 +873,8 @@ static void neo_tasklet(unsigned long data) */ spin_lock_irqsave(&bd->bd_intr_lock, flags); - /* - * If board is ready, parse deeper to see if there is anything to do. - */ + /* If board is ready, parse deeper to see if there is anything to do. */ + if ((state == BOARD_READY) && (ports > 0)) { /* Loop on each port */ for (i = 0; i < ports; i++) { @@ -997,9 +1002,9 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) break; case UART_17158_RX_LINE_STATUS: - /* - * RXRDY and RX LINE Status (logic OR of LSR[4:1]) - */ + + /* RXRDY and RX LINE Status (logic OR of LSR[4:1]) */ + neo_parse_lsr(brd, port); break; @@ -1022,9 +1027,9 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) break; case UART_17158_MSR: - /* - * MSR or flow control was seen. - */ + + /* MSR or flow control was seen. */ + neo_parse_isr(brd, port); break; @@ -1041,9 +1046,8 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) port++; } - /* - * Schedule tasklet to more in-depth servicing at a better time. - */ + /* Schedule tasklet to more in-depth servicing at a better time. */ + tasklet_schedule(&brd->helper_tasklet); spin_unlock_irqrestore(&brd->bd_intr_lock, flags); @@ -1238,9 +1242,8 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch) ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); } - /* - * Discard character if we are ignoring the error mask. - */ + /* Discard character if we are ignoring the error mask. */ + if (linestatus & error_mask) { unsigned char discard; @@ -1279,9 +1282,8 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch) ch->ch_rxcount++; } - /* - * Write new final heads to channel structure. - */ + /* Write new final heads to channel structure. */ + ch->ch_r_head = head & RQUEUEMASK; ch->ch_e_head = head & EQUEUEMASK; @@ -1412,9 +1414,8 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch) (ch->ch_flags & CH_BREAK_SENDING)) goto exit_unlock; - /* - * If FIFOs are disabled. Send data directly to txrx register - */ + /* If FIFOs are disabled. Send data directly to txrx register */ + if (!(ch->ch_flags & CH_FIFO_ENABLED)) { unsigned char lsrbits = readb(&ch->ch_neo_uart->lsr); @@ -1458,9 +1459,8 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch) goto exit_unlock; } - /* - * We have to do it this way, because of the EXAR TXFIFO count bug. - */ + /* We have to do it this way, because of the EXAR TXFIFO count bug. */ + if ((ch->ch_bd->dvid & 0xf0) < UART_XR17E158_DVID) { if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM))) goto exit_unlock; @@ -1645,9 +1645,8 @@ static void neo_send_stop_character(struct channel_t *ch) } } -/* - * neo_uart_init - */ +/* neo_uart_init */ + static void neo_uart_init(struct channel_t *ch) { writeb(0, &ch->ch_neo_uart->ier); @@ -1668,9 +1667,8 @@ static void neo_uart_init(struct channel_t *ch) neo_pci_posting_flush(ch->ch_bd); } -/* - * Make the UART completely turn off. - */ +/* Make the UART completely turn off. */ + static void neo_uart_off(struct channel_t *ch) { /* Turn off UART enhanced bits */ @@ -1705,9 +1703,8 @@ static uint neo_get_uart_bytes_left(struct channel_t *ch) /* Channel lock MUST be held by the calling function! */ static void neo_send_break(struct channel_t *ch, int msecs) { - /* - * If we receive a time of 0, this means turn off the break. - */ + /* If we receive a time of 0, this means turn off the break. */ + if (msecs == 0) { if (ch->ch_flags & CH_BREAK_SENDING) { unsigned char temp = readb(&ch->ch_neo_uart->lcr); |