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| author | Andre Przywara <andre.przywara@arm.com> | 2015-05-21 17:26:17 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-24 13:08:51 -0700 |
| commit | ef5a9358844a2e6f466facaca3247b64c72ef417 (patch) | |
| tree | c93b0df58b9340cb1e585fc649b0a75d1ed63954 | |
| parent | 95166a3fd5dc1f06321abb28b5713afd2bcc87c4 (diff) | |
| download | blackbird-obmc-linux-ef5a9358844a2e6f466facaca3247b64c72ef417.tar.gz blackbird-obmc-linux-ef5a9358844a2e6f466facaca3247b64c72ef417.zip | |
drivers: PL011: refactor pl011_set_termios()
Split the pl011_set_termios() function into smaller chunks to allow
easier reuse later when adding SBSA support.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Mark Langsdorf <mlangsdo@redhat.com>
Tested-by: Naresh Bhat <nbhat@cavium.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/amba-pl011.c | 60 |
1 files changed, 33 insertions, 27 deletions
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index a43039daa6af..686951a19716 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1706,6 +1706,38 @@ static void pl011_shutdown(struct uart_port *port) } static void +pl011_setup_status_masks(struct uart_port *port, struct ktermios *termios) +{ + port->read_status_mask = UART011_DR_OE | 255; + if (termios->c_iflag & INPCK) + port->read_status_mask |= UART011_DR_FE | UART011_DR_PE; + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) + port->read_status_mask |= UART011_DR_BE; + + /* + * Characters to ignore + */ + port->ignore_status_mask = 0; + if (termios->c_iflag & IGNPAR) + port->ignore_status_mask |= UART011_DR_FE | UART011_DR_PE; + if (termios->c_iflag & IGNBRK) { + port->ignore_status_mask |= UART011_DR_BE; + /* + * If we're ignoring parity and break indicators, + * ignore overruns too (for real raw support). + */ + if (termios->c_iflag & IGNPAR) + port->ignore_status_mask |= UART011_DR_OE; + } + + /* + * Ignore all characters if CREAD is not set. + */ + if ((termios->c_cflag & CREAD) == 0) + port->ignore_status_mask |= UART_DUMMY_DR_RX; +} + +static void pl011_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old) { @@ -1769,33 +1801,7 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios, */ uart_update_timeout(port, termios->c_cflag, baud); - port->read_status_mask = UART011_DR_OE | 255; - if (termios->c_iflag & INPCK) - port->read_status_mask |= UART011_DR_FE | UART011_DR_PE; - if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) - port->read_status_mask |= UART011_DR_BE; - - /* - * Characters to ignore - */ - port->ignore_status_mask = 0; - if (termios->c_iflag & IGNPAR) - port->ignore_status_mask |= UART011_DR_FE | UART011_DR_PE; - if (termios->c_iflag & IGNBRK) { - port->ignore_status_mask |= UART011_DR_BE; - /* - * If we're ignoring parity and break indicators, - * ignore overruns too (for real raw support). - */ - if (termios->c_iflag & IGNPAR) - port->ignore_status_mask |= UART011_DR_OE; - } - - /* - * Ignore all characters if CREAD is not set. - */ - if ((termios->c_cflag & CREAD) == 0) - port->ignore_status_mask |= UART_DUMMY_DR_RX; + pl011_setup_status_masks(port, termios); if (UART_ENABLE_MS(port, termios->c_cflag)) pl011_enable_ms(port); |
