From a859c8b2c309d91ba19d7bc273b41cb79b3ad17f Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 3 Jun 2014 11:56:25 +0530 Subject: serial: samsung: Fix build error Fixes the following build error due to a typo introduced by commit e4ac92df27 ("serial: samsung: Neaten dbg uses"): drivers/tty/serial/samsung.c:69:26: error: ‘buf’ undeclared (first use in this function) Reported-by: Arun Kumar K Signed-off-by: Sachin Kamat Signed-off-by: Arnd Bergmann Signed-off-by: Christian Engelmayer Acked-by: Joe Perches Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/samsung.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/tty') diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index 329337711bb0..c1d3ebdf3b97 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -66,7 +66,7 @@ static void dbg(const char *fmt, ...) char buff[256]; va_start(va, fmt); - vscnprintf(buff, sizeof(buf), fmt, va); + vscnprintf(buff, sizeof(buff), fmt, va); va_end(va); printascii(buff); -- cgit v1.2.3-55-g7522 From ef8b9ddcb45fa3b1e11acd72be2398001e807d14 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Mon, 16 Jun 2014 08:10:41 -0400 Subject: serial: Fix IGNBRK handling If IGNBRK is set without either BRKINT or PARMRK set, some uart drivers send a 0x00 byte for BREAK without the TTYBREAK flag to the line discipline, when it should send either nothing or the TTYBREAK flag set. This happens because the read_status_mask masks out the BI condition, which uart_insert_char() then interprets as a normal 0x00 byte. SUS v3 is clear regarding the meaning of IGNBRK; Section 11.2.2, General Terminal Interface - Input Modes, states: "If IGNBRK is set, a break condition detected on input shall be ignored; that is, not put on the input queue and therefore not read by any process." Fix read_status_mask to include the BI bit if IGNBRK is set; the lsr status retains the BI bit if a BREAK is recv'd, which is subsequently ignored in uart_insert_char() when masked with the ignore_status_mask. Affected drivers: 8250 - all serial_txx9 mfd amba-pl010 amba-pl011 atmel_serial bfin_uart dz ip22zilog max310x mxs-auart netx-serial pnx8xxx_uart pxa sb1250-duart sccnxp serial_ks8695 sirfsoc_uart st-asc vr41xx_siu zs sunzilog fsl_lpuart sunsab ucc_uart bcm63xx_uart sunsu efm32-uart pmac_zilog mpsc msm_serial m32r_sio Unaffected drivers: omap-serial rp2 sa1100 imx icom Annotated for fixes: altera_uart mcf Drivers without break detection: 21285 xilinx-uartps altera_jtaguart apbuart arc-uart clps711x max3100 uartlite msm_serial_hs nwpserial lantiq vt8500_serial Unknown: samsung mpc52xx_uart bfin_sport_uart cpm_uart/core Fixes: Bugzilla #71651, '8250_core.c incorrectly handles IGNBRK flag' Reported-by: Ivan Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250_core.c | 2 +- drivers/tty/serial/altera_uart.c | 6 ++++++ drivers/tty/serial/amba-pl010.c | 2 +- drivers/tty/serial/amba-pl011.c | 2 +- drivers/tty/serial/atmel_serial.c | 2 +- drivers/tty/serial/bcm63xx_uart.c | 2 +- drivers/tty/serial/bfin_uart.c | 2 +- drivers/tty/serial/dz.c | 2 +- drivers/tty/serial/efm32-uart.c | 2 +- drivers/tty/serial/fsl_lpuart.c | 2 +- drivers/tty/serial/ip22zilog.c | 2 +- drivers/tty/serial/m32r_sio.c | 2 +- drivers/tty/serial/max310x.c | 2 +- drivers/tty/serial/mcf.c | 6 ++++++ drivers/tty/serial/mfd.c | 2 +- drivers/tty/serial/mpsc.c | 2 +- drivers/tty/serial/msm_serial.c | 2 +- drivers/tty/serial/mxs-auart.c | 2 +- drivers/tty/serial/netx-serial.c | 2 +- drivers/tty/serial/pmac_zilog.c | 2 +- drivers/tty/serial/pnx8xxx_uart.c | 2 +- drivers/tty/serial/pxa.c | 2 +- drivers/tty/serial/sb1250-duart.c | 2 +- drivers/tty/serial/sccnxp.c | 2 +- drivers/tty/serial/serial_ks8695.c | 2 +- drivers/tty/serial/serial_txx9.c | 2 +- drivers/tty/serial/sirfsoc_uart.c | 2 +- drivers/tty/serial/st-asc.c | 2 +- drivers/tty/serial/sunsab.c | 2 +- drivers/tty/serial/sunsu.c | 2 +- drivers/tty/serial/sunzilog.c | 2 +- drivers/tty/serial/ucc_uart.c | 2 +- drivers/tty/serial/vr41xx_siu.c | 2 +- drivers/tty/serial/zs.c | 2 +- 34 files changed, 44 insertions(+), 32 deletions(-) (limited to 'drivers/tty') diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 27f7ad6b74c1..7a91c6d1eb7d 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -2357,7 +2357,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, port->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; if (termios->c_iflag & INPCK) port->read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= UART_LSR_BI; /* diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c index 501667e3e3f5..323376668b72 100644 --- a/drivers/tty/serial/altera_uart.c +++ b/drivers/tty/serial/altera_uart.c @@ -185,6 +185,12 @@ static void altera_uart_set_termios(struct uart_port *port, uart_update_timeout(port, termios->c_cflag, baud); altera_uart_writel(port, baudclk, ALTERA_UART_DIVISOR_REG); spin_unlock_irqrestore(&port->lock, flags); + + /* + * FIXME: port->read_status_mask and port->ignore_status_mask + * need to be initialized based on termios settings for + * INPCK, IGNBRK, IGNPAR, PARMRK, BRKINT + */ } static void altera_uart_rx_chars(struct altera_uart *pp) diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c index 01c9e72433e1..971af1e22d0f 100644 --- a/drivers/tty/serial/amba-pl010.c +++ b/drivers/tty/serial/amba-pl010.c @@ -420,7 +420,7 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios, uap->port.read_status_mask = UART01x_RSR_OE; if (termios->c_iflag & INPCK) uap->port.read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) uap->port.read_status_mask |= UART01x_RSR_BE; /* diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 908a6e3142a2..0e26dcbd5ea4 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1744,7 +1744,7 @@ pl011_set_termios(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 & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= UART011_DR_BE; /* diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 3fceae099c44..c4f750314100 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1932,7 +1932,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, port->read_status_mask = ATMEL_US_OVRE; if (termios->c_iflag & INPCK) port->read_status_mask |= (ATMEL_US_FRAME | ATMEL_US_PARE); - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= ATMEL_US_RXBRK; if (atmel_use_pdc_rx(port)) diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c index a47421e4627c..231519022b73 100644 --- a/drivers/tty/serial/bcm63xx_uart.c +++ b/drivers/tty/serial/bcm63xx_uart.c @@ -567,7 +567,7 @@ static void bcm_uart_set_termios(struct uart_port *port, port->read_status_mask |= UART_FIFO_FRAMEERR_MASK; port->read_status_mask |= UART_FIFO_PARERR_MASK; } - if (new->c_iflag & (BRKINT)) + if (new->c_iflag & (IGNBRK | BRKINT)) port->read_status_mask |= UART_FIFO_BRKDET_MASK; port->ignore_status_mask = 0; diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c index 869ceba2ec57..ac86a20992e9 100644 --- a/drivers/tty/serial/bfin_uart.c +++ b/drivers/tty/serial/bfin_uart.c @@ -833,7 +833,7 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios, port->read_status_mask = OE; if (termios->c_iflag & INPCK) port->read_status_mask |= (FE | PE); - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= BI; /* diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c index 2f2b2e538a54..cdbbc788230a 100644 --- a/drivers/tty/serial/dz.c +++ b/drivers/tty/serial/dz.c @@ -625,7 +625,7 @@ static void dz_set_termios(struct uart_port *uport, struct ktermios *termios, dport->port.read_status_mask = DZ_OERR; if (termios->c_iflag & INPCK) dport->port.read_status_mask |= DZ_FERR | DZ_PERR; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) dport->port.read_status_mask |= DZ_BREAK; /* characters to ignore */ diff --git a/drivers/tty/serial/efm32-uart.c b/drivers/tty/serial/efm32-uart.c index b373f6416e8c..3b0ee9afd76f 100644 --- a/drivers/tty/serial/efm32-uart.c +++ b/drivers/tty/serial/efm32-uart.c @@ -407,7 +407,7 @@ static void efm32_uart_set_termios(struct uart_port *port, if (new->c_iflag & INPCK) port->read_status_mask |= UARTn_RXDATAX_FERR | UARTn_RXDATAX_PERR; - if (new->c_iflag & (BRKINT | PARMRK)) + if (new->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= SW_UARTn_RXDATAX_BERR; port->ignore_status_mask = 0; diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index c5eb897de9de..49385c86cfba 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -902,7 +902,7 @@ lpuart_set_termios(struct uart_port *port, struct ktermios *termios, sport->port.read_status_mask = 0; if (termios->c_iflag & INPCK) sport->port.read_status_mask |= (UARTSR1_FE | UARTSR1_PE); - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) sport->port.read_status_mask |= UARTSR1_FE; /* characters to ignore */ diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c index 1d9420548e16..1efd4c36ba0c 100644 --- a/drivers/tty/serial/ip22zilog.c +++ b/drivers/tty/serial/ip22zilog.c @@ -850,7 +850,7 @@ ip22zilog_convert_to_zs(struct uart_ip22zilog_port *up, unsigned int cflag, up->port.read_status_mask = Rx_OVR; if (iflag & INPCK) up->port.read_status_mask |= CRC_ERR | PAR_ERR; - if (iflag & (BRKINT | PARMRK)) + if (iflag & (IGNBRK | BRKINT | PARMRK)) up->port.read_status_mask |= BRK_ABRT; up->port.ignore_status_mask = 0; diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/m32r_sio.c index 9cd9b4eba9fc..68f2c53e0b54 100644 --- a/drivers/tty/serial/m32r_sio.c +++ b/drivers/tty/serial/m32r_sio.c @@ -737,7 +737,7 @@ static void m32r_sio_set_termios(struct uart_port *port, up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; if (termios->c_iflag & INPCK) up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) up->port.read_status_mask |= UART_LSR_BI; /* diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 2a99d0c61b9e..ba285cd45b59 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -835,7 +835,7 @@ static void max310x_set_termios(struct uart_port *port, if (termios->c_iflag & INPCK) port->read_status_mask |= MAX310X_LSR_RXPAR_BIT | MAX310X_LSR_FRERR_BIT; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= MAX310X_LSR_RXBRK_BIT; /* Set status ignore mask */ diff --git a/drivers/tty/serial/mcf.c b/drivers/tty/serial/mcf.c index 0edfaf8cd269..a6f085717f94 100644 --- a/drivers/tty/serial/mcf.c +++ b/drivers/tty/serial/mcf.c @@ -248,6 +248,12 @@ static void mcf_set_termios(struct uart_port *port, struct ktermios *termios, mr1 |= MCFUART_MR1_PARITYNONE; } + /* + * FIXME: port->read_status_mask and port->ignore_status_mask + * need to be initialized based on termios settings for + * INPCK, IGNBRK, IGNPAR, PARMRK, BRKINT + */ + if (termios->c_cflag & CSTOPB) mr2 |= MCFUART_MR2_STOP2; else diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c index 52c930fac210..445799dc9846 100644 --- a/drivers/tty/serial/mfd.c +++ b/drivers/tty/serial/mfd.c @@ -977,7 +977,7 @@ serial_hsu_set_termios(struct uart_port *port, struct ktermios *termios, up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; if (termios->c_iflag & INPCK) up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) up->port.read_status_mask |= UART_LSR_BI; /* Characters to ignore */ diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c index e30a3ca3cea3..759c6a6fa74a 100644 --- a/drivers/tty/serial/mpsc.c +++ b/drivers/tty/serial/mpsc.c @@ -1458,7 +1458,7 @@ static void mpsc_set_termios(struct uart_port *port, struct ktermios *termios, pi->port.read_status_mask |= SDMA_DESC_CMDSTAT_PE | SDMA_DESC_CMDSTAT_FR; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) pi->port.read_status_mask |= SDMA_DESC_CMDSTAT_BR; /* Characters/events to ignore */ diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index 778e376f197e..c41aca4dfc43 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -582,7 +582,7 @@ static void msm_set_termios(struct uart_port *port, struct ktermios *termios, port->read_status_mask = 0; if (termios->c_iflag & INPCK) port->read_status_mask |= UART_SR_PAR_FRAME_ERR; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= UART_SR_RX_BREAK; uart_update_timeout(port, termios->c_cflag, baud); diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 4b5b3c2fe328..86de4477d98a 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -604,7 +604,7 @@ static void mxs_auart_settermios(struct uart_port *u, if (termios->c_iflag & INPCK) u->read_status_mask |= AUART_STAT_PERR; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) u->read_status_mask |= AUART_STAT_BERR; /* diff --git a/drivers/tty/serial/netx-serial.c b/drivers/tty/serial/netx-serial.c index 0a4dd70d29eb..7a6745601d4e 100644 --- a/drivers/tty/serial/netx-serial.c +++ b/drivers/tty/serial/netx-serial.c @@ -419,7 +419,7 @@ netx_set_termios(struct uart_port *port, struct ktermios *termios, } port->read_status_mask = 0; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= SR_BE; if (termios->c_iflag & INPCK) port->read_status_mask |= SR_PE | SR_FE; diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c index e9d420ff3931..8193635103ee 100644 --- a/drivers/tty/serial/pmac_zilog.c +++ b/drivers/tty/serial/pmac_zilog.c @@ -1092,7 +1092,7 @@ static void pmz_convert_to_zs(struct uart_pmac_port *uap, unsigned int cflag, uap->port.read_status_mask = Rx_OVR; if (iflag & INPCK) uap->port.read_status_mask |= CRC_ERR | PAR_ERR; - if (iflag & (BRKINT | PARMRK)) + if (iflag & (IGNBRK | BRKINT | PARMRK)) uap->port.read_status_mask |= BRK_ABRT; uap->port.ignore_status_mask = 0; diff --git a/drivers/tty/serial/pnx8xxx_uart.c b/drivers/tty/serial/pnx8xxx_uart.c index de6c05c63683..2ba24a45c97f 100644 --- a/drivers/tty/serial/pnx8xxx_uart.c +++ b/drivers/tty/serial/pnx8xxx_uart.c @@ -477,7 +477,7 @@ pnx8xxx_set_termios(struct uart_port *port, struct ktermios *termios, sport->port.read_status_mask |= FIFO_TO_SM(PNX8XXX_UART_FIFO_RXFE) | FIFO_TO_SM(PNX8XXX_UART_FIFO_RXPAR); - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) sport->port.read_status_mask |= ISTAT_TO_SM(PNX8XXX_UART_INT_BREAK); diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c index 9e7ee39f8b2a..c638c53cd2b6 100644 --- a/drivers/tty/serial/pxa.c +++ b/drivers/tty/serial/pxa.c @@ -492,7 +492,7 @@ serial_pxa_set_termios(struct uart_port *port, struct ktermios *termios, up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; if (termios->c_iflag & INPCK) up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) up->port.read_status_mask |= UART_LSR_BI; /* diff --git a/drivers/tty/serial/sb1250-duart.c b/drivers/tty/serial/sb1250-duart.c index a7cdec2962dd..771f361c47ea 100644 --- a/drivers/tty/serial/sb1250-duart.c +++ b/drivers/tty/serial/sb1250-duart.c @@ -596,7 +596,7 @@ static void sbd_set_termios(struct uart_port *uport, struct ktermios *termios, if (termios->c_iflag & INPCK) uport->read_status_mask |= M_DUART_FRM_ERR | M_DUART_PARITY_ERR; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) uport->read_status_mask |= M_DUART_RCVD_BRK; uport->ignore_status_mask = 0; diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c index 5443b46345ed..e84b6a3bdd18 100644 --- a/drivers/tty/serial/sccnxp.c +++ b/drivers/tty/serial/sccnxp.c @@ -665,7 +665,7 @@ static void sccnxp_set_termios(struct uart_port *port, port->read_status_mask = SR_OVR; if (termios->c_iflag & INPCK) port->read_status_mask |= SR_PE | SR_FE; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= SR_BRK; /* Set status ignore mask */ diff --git a/drivers/tty/serial/serial_ks8695.c b/drivers/tty/serial/serial_ks8695.c index e1caa99e3d3b..5c79bdab985d 100644 --- a/drivers/tty/serial/serial_ks8695.c +++ b/drivers/tty/serial/serial_ks8695.c @@ -437,7 +437,7 @@ static void ks8695uart_set_termios(struct uart_port *port, struct ktermios *term port->read_status_mask = URLS_URROE; if (termios->c_iflag & INPCK) port->read_status_mask |= (URLS_URFE | URLS_URPE); - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= URLS_URBI; /* diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c index 60f49b9d7e39..ea8546092c7e 100644 --- a/drivers/tty/serial/serial_txx9.c +++ b/drivers/tty/serial/serial_txx9.c @@ -697,7 +697,7 @@ serial_txx9_set_termios(struct uart_port *port, struct ktermios *termios, TXX9_SIDISR_TDIS | TXX9_SIDISR_RDIS; if (termios->c_iflag & INPCK) up->port.read_status_mask |= TXX9_SIDISR_UFER | TXX9_SIDISR_UPER; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) up->port.read_status_mask |= TXX9_SIDISR_UBRK; /* diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c index 1f2be48c92ce..9b4d71cff00d 100644 --- a/drivers/tty/serial/sirfsoc_uart.c +++ b/drivers/tty/serial/sirfsoc_uart.c @@ -896,7 +896,7 @@ static void sirfsoc_uart_set_termios(struct uart_port *port, if (termios->c_iflag & INPCK) port->read_status_mask |= uint_en->sirfsoc_frm_err_en; } - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= uint_en->sirfsoc_rxd_brk_en; if (sirfport->uart_reg->uart_type == SIRF_REAL_UART) { if (termios->c_iflag & IGNPAR) diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c index c7f61ac27132..f48b1cc07eea 100644 --- a/drivers/tty/serial/st-asc.c +++ b/drivers/tty/serial/st-asc.c @@ -547,7 +547,7 @@ static void asc_set_termios(struct uart_port *port, struct ktermios *termios, ascport->port.read_status_mask = ASC_RXBUF_DUMMY_OE; if (termios->c_iflag & INPCK) ascport->port.read_status_mask |= ASC_RXBUF_FE | ASC_RXBUF_PE; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) ascport->port.read_status_mask |= ASC_RXBUF_DUMMY_BE; /* diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c index 5faa8e905e98..80a58eca785b 100644 --- a/drivers/tty/serial/sunsab.c +++ b/drivers/tty/serial/sunsab.c @@ -719,7 +719,7 @@ static void sunsab_convert_to_sab(struct uart_sunsab_port *up, unsigned int cfla if (iflag & INPCK) up->port.read_status_mask |= (SAB82532_ISR0_PERR | SAB82532_ISR0_FERR); - if (iflag & (BRKINT | PARMRK)) + if (iflag & (IGNBRK | BRKINT | PARMRK)) up->port.read_status_mask |= (SAB82532_ISR1_BRK << 8); /* diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c index 9a0f24f83720..5326ae195e5f 100644 --- a/drivers/tty/serial/sunsu.c +++ b/drivers/tty/serial/sunsu.c @@ -834,7 +834,7 @@ sunsu_change_speed(struct uart_port *port, unsigned int cflag, up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; if (iflag & INPCK) up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (iflag & (BRKINT | PARMRK)) + if (iflag & (IGNBRK | BRKINT | PARMRK)) up->port.read_status_mask |= UART_LSR_BI; /* diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c index a2c40ed287d2..a85db8b87156 100644 --- a/drivers/tty/serial/sunzilog.c +++ b/drivers/tty/serial/sunzilog.c @@ -915,7 +915,7 @@ sunzilog_convert_to_zs(struct uart_sunzilog_port *up, unsigned int cflag, up->port.read_status_mask = Rx_OVR; if (iflag & INPCK) up->port.read_status_mask |= CRC_ERR | PAR_ERR; - if (iflag & (BRKINT | PARMRK)) + if (iflag & (IGNBRK | BRKINT | PARMRK)) up->port.read_status_mask |= BRK_ABRT; up->port.ignore_status_mask = 0; diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c index d569ca58bab6..1c52074c38df 100644 --- a/drivers/tty/serial/ucc_uart.c +++ b/drivers/tty/serial/ucc_uart.c @@ -936,7 +936,7 @@ static void qe_uart_set_termios(struct uart_port *port, port->read_status_mask = BD_SC_EMPTY | BD_SC_OV; if (termios->c_iflag & INPCK) port->read_status_mask |= BD_SC_FR | BD_SC_PR; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= BD_SC_BR; /* diff --git a/drivers/tty/serial/vr41xx_siu.c b/drivers/tty/serial/vr41xx_siu.c index a63c14bc9a24..db0c8a4ab03e 100644 --- a/drivers/tty/serial/vr41xx_siu.c +++ b/drivers/tty/serial/vr41xx_siu.c @@ -559,7 +559,7 @@ static void siu_set_termios(struct uart_port *port, struct ktermios *new, port->read_status_mask = UART_LSR_THRE | UART_LSR_OE | UART_LSR_DR; if (c_iflag & INPCK) port->read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (c_iflag & (BRKINT | PARMRK)) + if (c_iflag & (IGNBRK | BRKINT | PARMRK)) port->read_status_mask |= UART_LSR_BI; port->ignore_status_mask = 0; diff --git a/drivers/tty/serial/zs.c b/drivers/tty/serial/zs.c index 6a169877109b..2b65bb7ffb8a 100644 --- a/drivers/tty/serial/zs.c +++ b/drivers/tty/serial/zs.c @@ -923,7 +923,7 @@ static void zs_set_termios(struct uart_port *uport, struct ktermios *termios, uport->read_status_mask = Rx_OVR; if (termios->c_iflag & INPCK) uport->read_status_mask |= FRM_ERR | PAR_ERR; - if (termios->c_iflag & (BRKINT | PARMRK)) + if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) uport->read_status_mask |= Rx_BRK; uport->ignore_status_mask = 0; -- cgit v1.2.3-55-g7522 From 66528f90669691c85c73bea4f0c9f4a5857c4cab Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Mon, 16 Jun 2014 08:10:42 -0400 Subject: tty: Correct INPCK handling If INPCK is not set, input parity detection should be disabled. This means parity errors should not be received from the tty driver, and the data received should be treated normally. SUS v3, 11.2.2, General Terminal Interface - Input Modes, states: "If INPCK is set, input parity checking shall be enabled. If INPCK is not set, input parity checking shall be disabled, allowing output parity generation without input parity errors. Note that whether input parity checking is enabled or disabled is independent of whether parity detection is enabled or disabled (see Control Modes). If parity detection is enabled but input parity checking is disabled, the hardware to which the terminal is connected shall recognize the parity bit, but the terminal special file shall not check whether or not this bit is correctly set." Ignore parity errors reported by the tty driver when INPCK is not set, and handle the received data normally. Fixes: Bugzilla #71681, 'Improvement of n_tty_receive_parity_error from n_tty.c' Reported-by: Ivan Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/n_tty.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) (limited to 'drivers/tty') diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index f95569dedc88..f44f1ba762c3 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1214,15 +1214,16 @@ static void n_tty_receive_parity_error(struct tty_struct *tty, unsigned char c) { struct n_tty_data *ldata = tty->disc_data; - if (I_IGNPAR(tty)) - return; - if (I_PARMRK(tty)) { - put_tty_queue('\377', ldata); - put_tty_queue('\0', ldata); - put_tty_queue(c, ldata); - } else if (I_INPCK(tty)) - put_tty_queue('\0', ldata); - else + if (I_INPCK(tty)) { + if (I_IGNPAR(tty)) + return; + if (I_PARMRK(tty)) { + put_tty_queue('\377', ldata); + put_tty_queue('\0', ldata); + put_tty_queue(c, ldata); + } else + put_tty_queue('\0', ldata); + } else put_tty_queue(c, ldata); if (waitqueue_active(&tty->read_wait)) wake_up_interruptible(&tty->read_wait); -- cgit v1.2.3-55-g7522 From 60efcf0414be5876d81276e3c1fd12680ba2ce71 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 12 Jun 2014 12:52:44 -0500 Subject: tty/serial: fix 8250 early console option passing to regular console In the conversion to generic early console, the passing of options from the early 8250 console to the regular ttyS console was broken. This resulted in the baud rate changing when switching consoles during boot. This feature allows specifying a single console option on the kernel command line rather than both an early console and regular serial tty console. It would be nice to generalize this feature. However, it only works if the correct baud rate can be probed early which is not the case on many platforms which have non-standard UART clock rates. So for now, this is left as an 8250 specific feature. Reported-and-tested-by: Tony Luck Signed-off-by: Rob Herring Cc: Jiri Slaby Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250_early.c | 5 ++++- drivers/tty/serial/earlycon.c | 2 +- 2 files changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/tty') diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c index cfef801a49d4..4858b8a99d3b 100644 --- a/drivers/tty/serial/8250/8250_early.c +++ b/drivers/tty/serial/8250/8250_early.c @@ -144,8 +144,11 @@ static int __init early_serial8250_setup(struct earlycon_device *device, if (!(device->port.membase || device->port.iobase)) return 0; - if (!device->baud) + if (!device->baud) { device->baud = probe_baud(&device->port); + snprintf(device->options, sizeof(device->options), "%u", + device->baud); + } init_port(device); diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c index 5131b5ee6164..a514ee6f5406 100644 --- a/drivers/tty/serial/earlycon.c +++ b/drivers/tty/serial/earlycon.c @@ -25,7 +25,7 @@ #include static struct console early_con = { - .name = "earlycon", + .name = "uart", /* 8250 console switch requires this name */ .flags = CON_PRINTBUFFER | CON_BOOT, .index = -1, }; -- cgit v1.2.3-55-g7522