RE: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd parity
Hi,
> -Original Message-
> From: Peter Hurley [mailto:pe...@hurleysoftware.com]
> Sent: Monday, August 17, 2015 9:54 PM
> To: Anirudha Sarangi; Michal Simek
> Cc: linux-kernel@vger.kernel.org; mon...@monstr.eu; Soren Brinkmann; Jiri
> Slaby; linux-ser...@vger.kernel.org; Greg Kroah-Hartman; linux-arm-
> ker...@lists.infradead.org
> Subject: Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd
> parity
>
> On 08/17/2015 11:55 AM, Anirudha Sarangi wrote:
> > Hi,
> >
> >> -Original Message-
> >> From: Peter Hurley [mailto:pe...@hurleysoftware.com]
> >> Sent: Monday, August 17, 2015 9:09 PM
> >> To: Michal Simek
> >> Cc: linux-kernel@vger.kernel.org; mon...@monstr.eu; Anirudha Sarangi;
> >> Soren Brinkmann; Jiri Slaby; linux-ser...@vger.kernel.org; Greg
> >> Kroah-Hartman; linux- arm-ker...@lists.infradead.org
> >> Subject: Re: [PATCH 1/4] serial: xuartps: Fix termios issue for
> >> enabling odd parity
> >>
> >> On 08/17/2015 03:22 AM, Michal Simek wrote:
> >>> From: Anirudha Sarangi
> >>>
> >>> Existing set_termios does not handle the option for enabling odd
> >>> parity. This patch fixes it.
> >>
> >> NAK. PARODD does not enable parity generation or detection.
> >>
> > What if someone is trying to change from even to odd parity?
>
> If userspace wants odd parity, then c_cflag must have both PARENB and PARODD
> set.
>
> Just PARODD does nothing.
>
> From SUS v4, General Terminal Interface, 11.2.4 Control Modes;
>
> "If PARENB is set, parity generation and detection shall be enabled and a
> parity
> bit is added to each byte. If parity is enabled, PARODD shall specify odd
> parity if
> set; otherwise, even parity shall be used."
>
>
Thanks a lot. I will incorporate the changes.
>
> > In this conditional case, we setup some register bit for the same.
> > Is the above use case not a valid one?
> >
> > Regards
> > Anirudha
> >
> >> Regards,
> >> Peter Hurley
> >>
> >>> Signed-off-by: Anirudha Sarangi
> >>> Signed-off-by: Michal Simek
> >>> ---
> >>>
> >>> drivers/tty/serial/xilinx_uartps.c | 2 +-
> >>> 1 file changed, 1 insertion(+), 1 deletion(-)
> >>>
> >>> diff --git a/drivers/tty/serial/xilinx_uartps.c
> >>> b/drivers/tty/serial/xilinx_uartps.c
> >>> index 009e0dbc12d2..a3020344ac9d 100644
> >>> --- a/drivers/tty/serial/xilinx_uartps.c
> >>> +++ b/drivers/tty/serial/xilinx_uartps.c
> >>> @@ -723,7 +723,7 @@ static void cdns_uart_set_termios(struct
> >>> uart_port
> >> *port,
> >>> else
> >>> cval |= CDNS_UART_MR_STOPMODE_1_BIT; /* 1 STOP bit */
> >>>
> >>> - if (termios->c_cflag & PARENB) {
> >>> + if ((termios->c_cflag & PARENB) || (termios->c_cflag & PARODD))
> >>> + {
> >>> /* Mark or Space parity */
> >>> if (termios->c_cflag & CMSPAR) {
> >>> if (termios->c_cflag & PARODD)
> >>>
> >
> >
> >
> > This email and any attachments are intended for the sole use of the named
> recipient(s) and contain(s) confidential information that may be proprietary,
> privileged or copyrighted under applicable law. If you are not the intended
> recipient, do not read, copy, or forward this email message or any
> attachments.
> Delete this email message and any attachments immediately.
> >
This email and any attachments are intended for the sole use of the named
recipient(s) and contain(s) confidential information that may be proprietary,
privileged or copyrighted under applicable law. If you are not the intended
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Delete this email message and any attachments immediately.
Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd parity
On 08/17/2015 11:55 AM, Anirudha Sarangi wrote:
> Hi,
>
>> -Original Message-
>> From: Peter Hurley [mailto:pe...@hurleysoftware.com]
>> Sent: Monday, August 17, 2015 9:09 PM
>> To: Michal Simek
>> Cc: linux-kernel@vger.kernel.org; mon...@monstr.eu; Anirudha Sarangi; Soren
>> Brinkmann; Jiri Slaby; linux-ser...@vger.kernel.org; Greg Kroah-Hartman;
>> linux-
>> arm-ker...@lists.infradead.org
>> Subject: Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd
>> parity
>>
>> On 08/17/2015 03:22 AM, Michal Simek wrote:
>>> From: Anirudha Sarangi
>>>
>>> Existing set_termios does not handle the option for enabling odd
>>> parity. This patch fixes it.
>>
>> NAK. PARODD does not enable parity generation or detection.
>>
> What if someone is trying to change from even to odd parity?
If userspace wants odd parity, then c_cflag must have both
PARENB and PARODD set.
Just PARODD does nothing.
>From SUS v4, General Terminal Interface, 11.2.4 Control Modes;
"If PARENB is set, parity generation and detection shall be enabled
and a parity bit is added to each byte. If parity is enabled, PARODD
shall specify odd parity if set; otherwise, even parity shall be used."
> In this conditional case, we setup some register bit for the same.
> Is the above use case not a valid one?
>
> Regards
> Anirudha
>
>> Regards,
>> Peter Hurley
>>
>>> Signed-off-by: Anirudha Sarangi
>>> Signed-off-by: Michal Simek
>>> ---
>>>
>>> drivers/tty/serial/xilinx_uartps.c | 2 +-
>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/tty/serial/xilinx_uartps.c
>>> b/drivers/tty/serial/xilinx_uartps.c
>>> index 009e0dbc12d2..a3020344ac9d 100644
>>> --- a/drivers/tty/serial/xilinx_uartps.c
>>> +++ b/drivers/tty/serial/xilinx_uartps.c
>>> @@ -723,7 +723,7 @@ static void cdns_uart_set_termios(struct uart_port
>> *port,
>>> else
>>> cval |= CDNS_UART_MR_STOPMODE_1_BIT; /* 1 STOP bit */
>>>
>>> - if (termios->c_cflag & PARENB) {
>>> + if ((termios->c_cflag & PARENB) || (termios->c_cflag & PARODD)) {
>>> /* Mark or Space parity */
>>> if (termios->c_cflag & CMSPAR) {
>>> if (termios->c_cflag & PARODD)
>>>
>
>
>
> This email and any attachments are intended for the sole use of the named
> recipient(s) and contain(s) confidential information that may be proprietary,
> privileged or copyrighted under applicable law. If you are not the intended
> recipient, do not read, copy, or forward this email message or any
> attachments. Delete this email message and any attachments immediately.
>
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Please read the FAQ at http://www.tux.org/lkml/
RE: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd parity
Hi,
> -Original Message-
> From: Peter Hurley [mailto:pe...@hurleysoftware.com]
> Sent: Monday, August 17, 2015 9:09 PM
> To: Michal Simek
> Cc: linux-kernel@vger.kernel.org; mon...@monstr.eu; Anirudha Sarangi; Soren
> Brinkmann; Jiri Slaby; linux-ser...@vger.kernel.org; Greg Kroah-Hartman;
> linux-
> arm-ker...@lists.infradead.org
> Subject: Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd
> parity
>
> On 08/17/2015 03:22 AM, Michal Simek wrote:
> > From: Anirudha Sarangi
> >
> > Existing set_termios does not handle the option for enabling odd
> > parity. This patch fixes it.
>
> NAK. PARODD does not enable parity generation or detection.
>
What if someone is trying to change from even to odd parity?
In this conditional case, we setup some register bit for the same.
Is the above use case not a valid one?
Regards
Anirudha
> Regards,
> Peter Hurley
>
> > Signed-off-by: Anirudha Sarangi
> > Signed-off-by: Michal Simek
> > ---
> >
> > drivers/tty/serial/xilinx_uartps.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/tty/serial/xilinx_uartps.c
> > b/drivers/tty/serial/xilinx_uartps.c
> > index 009e0dbc12d2..a3020344ac9d 100644
> > --- a/drivers/tty/serial/xilinx_uartps.c
> > +++ b/drivers/tty/serial/xilinx_uartps.c
> > @@ -723,7 +723,7 @@ static void cdns_uart_set_termios(struct uart_port
> *port,
> > else
> > cval |= CDNS_UART_MR_STOPMODE_1_BIT; /* 1 STOP bit */
> >
> > - if (termios->c_cflag & PARENB) {
> > + if ((termios->c_cflag & PARENB) || (termios->c_cflag & PARODD)) {
> > /* Mark or Space parity */
> > if (termios->c_cflag & CMSPAR) {
> > if (termios->c_cflag & PARODD)
> >
This email and any attachments are intended for the sole use of the named
recipient(s) and contain(s) confidential information that may be proprietary,
privileged or copyrighted under applicable law. If you are not the intended
recipient, do not read, copy, or forward this email message or any attachments.
Delete this email message and any attachments immediately.
Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd parity
On 08/17/2015 03:22 AM, Michal Simek wrote:
> From: Anirudha Sarangi
>
> Existing set_termios does not handle the option for enabling
> odd parity. This patch fixes it.
NAK. PARODD does not enable parity generation or detection.
Regards,
Peter Hurley
> Signed-off-by: Anirudha Sarangi
> Signed-off-by: Michal Simek
> ---
>
> drivers/tty/serial/xilinx_uartps.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/tty/serial/xilinx_uartps.c
> b/drivers/tty/serial/xilinx_uartps.c
> index 009e0dbc12d2..a3020344ac9d 100644
> --- a/drivers/tty/serial/xilinx_uartps.c
> +++ b/drivers/tty/serial/xilinx_uartps.c
> @@ -723,7 +723,7 @@ static void cdns_uart_set_termios(struct uart_port *port,
> else
> cval |= CDNS_UART_MR_STOPMODE_1_BIT; /* 1 STOP bit */
>
> - if (termios->c_cflag & PARENB) {
> + if ((termios->c_cflag & PARENB) || (termios->c_cflag & PARODD)) {
> /* Mark or Space parity */
> if (termios->c_cflag & CMSPAR) {
> if (termios->c_cflag & PARODD)
>
--
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RE: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd parity
Hi,
-Original Message-
From: Peter Hurley [mailto:pe...@hurleysoftware.com]
Sent: Monday, August 17, 2015 9:54 PM
To: Anirudha Sarangi; Michal Simek
Cc: linux-kernel@vger.kernel.org; mon...@monstr.eu; Soren Brinkmann; Jiri
Slaby; linux-ser...@vger.kernel.org; Greg Kroah-Hartman; linux-arm-
ker...@lists.infradead.org
Subject: Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd
parity
On 08/17/2015 11:55 AM, Anirudha Sarangi wrote:
Hi,
-Original Message-
From: Peter Hurley [mailto:pe...@hurleysoftware.com]
Sent: Monday, August 17, 2015 9:09 PM
To: Michal Simek
Cc: linux-kernel@vger.kernel.org; mon...@monstr.eu; Anirudha Sarangi;
Soren Brinkmann; Jiri Slaby; linux-ser...@vger.kernel.org; Greg
Kroah-Hartman; linux- arm-ker...@lists.infradead.org
Subject: Re: [PATCH 1/4] serial: xuartps: Fix termios issue for
enabling odd parity
On 08/17/2015 03:22 AM, Michal Simek wrote:
From: Anirudha Sarangi anirudha.sara...@xilinx.com
Existing set_termios does not handle the option for enabling odd
parity. This patch fixes it.
NAK. PARODD does not enable parity generation or detection.
What if someone is trying to change from even to odd parity?
If userspace wants odd parity, then c_cflag must have both PARENB and PARODD
set.
Just PARODD does nothing.
From SUS v4, General Terminal Interface, 11.2.4 Control Modes;
If PARENB is set, parity generation and detection shall be enabled and a
parity
bit is added to each byte. If parity is enabled, PARODD shall specify odd
parity if
set; otherwise, even parity shall be used.
Thanks a lot. I will incorporate the changes.
In this conditional case, we setup some register bit for the same.
Is the above use case not a valid one?
Regards
Anirudha
Regards,
Peter Hurley
Signed-off-by: Anirudha Sarangi anir...@xilinx.com
Signed-off-by: Michal Simek michal.si...@xilinx.com
---
drivers/tty/serial/xilinx_uartps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/xilinx_uartps.c
b/drivers/tty/serial/xilinx_uartps.c
index 009e0dbc12d2..a3020344ac9d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -723,7 +723,7 @@ static void cdns_uart_set_termios(struct
uart_port
*port,
else
cval |= CDNS_UART_MR_STOPMODE_1_BIT; /* 1 STOP bit */
- if (termios-c_cflag PARENB) {
+ if ((termios-c_cflag PARENB) || (termios-c_cflag PARODD))
+ {
/* Mark or Space parity */
if (termios-c_cflag CMSPAR) {
if (termios-c_cflag PARODD)
This email and any attachments are intended for the sole use of the named
recipient(s) and contain(s) confidential information that may be proprietary,
privileged or copyrighted under applicable law. If you are not the intended
recipient, do not read, copy, or forward this email message or any
attachments.
Delete this email message and any attachments immediately.
This email and any attachments are intended for the sole use of the named
recipient(s) and contain(s) confidential information that may be proprietary,
privileged or copyrighted under applicable law. If you are not the intended
recipient, do not read, copy, or forward this email message or any attachments.
Delete this email message and any attachments immediately.
Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd parity
On 08/17/2015 11:55 AM, Anirudha Sarangi wrote:
Hi,
-Original Message-
From: Peter Hurley [mailto:pe...@hurleysoftware.com]
Sent: Monday, August 17, 2015 9:09 PM
To: Michal Simek
Cc: linux-kernel@vger.kernel.org; mon...@monstr.eu; Anirudha Sarangi; Soren
Brinkmann; Jiri Slaby; linux-ser...@vger.kernel.org; Greg Kroah-Hartman;
linux-
arm-ker...@lists.infradead.org
Subject: Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd
parity
On 08/17/2015 03:22 AM, Michal Simek wrote:
From: Anirudha Sarangi anirudha.sara...@xilinx.com
Existing set_termios does not handle the option for enabling odd
parity. This patch fixes it.
NAK. PARODD does not enable parity generation or detection.
What if someone is trying to change from even to odd parity?
If userspace wants odd parity, then c_cflag must have both
PARENB and PARODD set.
Just PARODD does nothing.
From SUS v4, General Terminal Interface, 11.2.4 Control Modes;
If PARENB is set, parity generation and detection shall be enabled
and a parity bit is added to each byte. If parity is enabled, PARODD
shall specify odd parity if set; otherwise, even parity shall be used.
In this conditional case, we setup some register bit for the same.
Is the above use case not a valid one?
Regards
Anirudha
Regards,
Peter Hurley
Signed-off-by: Anirudha Sarangi anir...@xilinx.com
Signed-off-by: Michal Simek michal.si...@xilinx.com
---
drivers/tty/serial/xilinx_uartps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/xilinx_uartps.c
b/drivers/tty/serial/xilinx_uartps.c
index 009e0dbc12d2..a3020344ac9d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -723,7 +723,7 @@ static void cdns_uart_set_termios(struct uart_port
*port,
else
cval |= CDNS_UART_MR_STOPMODE_1_BIT; /* 1 STOP bit */
- if (termios-c_cflag PARENB) {
+ if ((termios-c_cflag PARENB) || (termios-c_cflag PARODD)) {
/* Mark or Space parity */
if (termios-c_cflag CMSPAR) {
if (termios-c_cflag PARODD)
This email and any attachments are intended for the sole use of the named
recipient(s) and contain(s) confidential information that may be proprietary,
privileged or copyrighted under applicable law. If you are not the intended
recipient, do not read, copy, or forward this email message or any
attachments. Delete this email message and any attachments immediately.
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
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Please read the FAQ at http://www.tux.org/lkml/
RE: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd parity
Hi,
-Original Message-
From: Peter Hurley [mailto:pe...@hurleysoftware.com]
Sent: Monday, August 17, 2015 9:09 PM
To: Michal Simek
Cc: linux-kernel@vger.kernel.org; mon...@monstr.eu; Anirudha Sarangi; Soren
Brinkmann; Jiri Slaby; linux-ser...@vger.kernel.org; Greg Kroah-Hartman;
linux-
arm-ker...@lists.infradead.org
Subject: Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd
parity
On 08/17/2015 03:22 AM, Michal Simek wrote:
From: Anirudha Sarangi anirudha.sara...@xilinx.com
Existing set_termios does not handle the option for enabling odd
parity. This patch fixes it.
NAK. PARODD does not enable parity generation or detection.
What if someone is trying to change from even to odd parity?
In this conditional case, we setup some register bit for the same.
Is the above use case not a valid one?
Regards
Anirudha
Regards,
Peter Hurley
Signed-off-by: Anirudha Sarangi anir...@xilinx.com
Signed-off-by: Michal Simek michal.si...@xilinx.com
---
drivers/tty/serial/xilinx_uartps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/xilinx_uartps.c
b/drivers/tty/serial/xilinx_uartps.c
index 009e0dbc12d2..a3020344ac9d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -723,7 +723,7 @@ static void cdns_uart_set_termios(struct uart_port
*port,
else
cval |= CDNS_UART_MR_STOPMODE_1_BIT; /* 1 STOP bit */
- if (termios-c_cflag PARENB) {
+ if ((termios-c_cflag PARENB) || (termios-c_cflag PARODD)) {
/* Mark or Space parity */
if (termios-c_cflag CMSPAR) {
if (termios-c_cflag PARODD)
This email and any attachments are intended for the sole use of the named
recipient(s) and contain(s) confidential information that may be proprietary,
privileged or copyrighted under applicable law. If you are not the intended
recipient, do not read, copy, or forward this email message or any attachments.
Delete this email message and any attachments immediately.
Re: [PATCH 1/4] serial: xuartps: Fix termios issue for enabling odd parity
On 08/17/2015 03:22 AM, Michal Simek wrote:
From: Anirudha Sarangi anirudha.sara...@xilinx.com
Existing set_termios does not handle the option for enabling
odd parity. This patch fixes it.
NAK. PARODD does not enable parity generation or detection.
Regards,
Peter Hurley
Signed-off-by: Anirudha Sarangi anir...@xilinx.com
Signed-off-by: Michal Simek michal.si...@xilinx.com
---
drivers/tty/serial/xilinx_uartps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/xilinx_uartps.c
b/drivers/tty/serial/xilinx_uartps.c
index 009e0dbc12d2..a3020344ac9d 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -723,7 +723,7 @@ static void cdns_uart_set_termios(struct uart_port *port,
else
cval |= CDNS_UART_MR_STOPMODE_1_BIT; /* 1 STOP bit */
- if (termios-c_cflag PARENB) {
+ if ((termios-c_cflag PARENB) || (termios-c_cflag PARODD)) {
/* Mark or Space parity */
if (termios-c_cflag CMSPAR) {
if (termios-c_cflag PARODD)
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
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