From: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
To: linux-serial@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org, magnus.damm@gmail.com,
laurent.pinchart@ideasonboard.com, wsa@the-dreams.de,
robh@kernel.org, peda@axentia.se, geert@linux-m68k.org,
linux-i2c@vger.kernel.org,
Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Subject: [PATCH 1/6] serdev: add method to set parity
Date: Wed, 16 Aug 2017 15:22:23 +0200 [thread overview]
Message-ID: <1502889748-31499-2-git-send-email-ulrich.hecht+renesas@gmail.com> (raw)
In-Reply-To: <1502889748-31499-1-git-send-email-ulrich.hecht+renesas@gmail.com>
Adds serdev_device_set_parity() and an implementation for ttyport.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
---
drivers/tty/serdev/core.c | 12 ++++++++++++
drivers/tty/serdev/serdev-ttyport.c | 18 ++++++++++++++++++
include/linux/serdev.h | 10 ++++++++++
3 files changed, 40 insertions(+)
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
index ae1aaa0..8491056 100644
--- a/drivers/tty/serdev/core.c
+++ b/drivers/tty/serdev/core.c
@@ -242,6 +242,18 @@ int serdev_device_set_tiocm(struct serdev_device *serdev, int set, int clear)
}
EXPORT_SYMBOL_GPL(serdev_device_set_tiocm);
+int serdev_device_set_parity(struct serdev_device *serdev,
+ enum serdev_parity parity)
+{
+ struct serdev_controller *ctrl = serdev->ctrl;
+
+ if (!ctrl || !ctrl->ops->set_parity)
+ return -ENOTSUPP;
+
+ return ctrl->ops->set_parity(ctrl, parity);
+}
+EXPORT_SYMBOL_GPL(serdev_device_set_parity);
+
static int serdev_drv_probe(struct device *dev)
{
const struct serdev_device_driver *sdrv = to_serdev_device_driver(dev->driver);
diff --git a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c
index 302018d..2883f12 100644
--- a/drivers/tty/serdev/serdev-ttyport.c
+++ b/drivers/tty/serdev/serdev-ttyport.c
@@ -195,6 +195,23 @@ static int ttyport_set_tiocm(struct serdev_controller *ctrl, unsigned int set, u
return tty->driver->ops->tiocmset(tty, set, clear);
}
+static int ttyport_set_parity(struct serdev_controller *ctrl,
+ enum serdev_parity parity)
+{
+ struct serport *serport = serdev_controller_get_drvdata(ctrl);
+ struct tty_struct *tty = serport->tty;
+ struct ktermios ktermios = tty->termios;
+
+ ktermios.c_cflag &= ~(PARENB | PARODD);
+ if (parity != SERDEV_PARITY_NONE) {
+ ktermios.c_cflag |= PARENB;
+ if (parity == SERDEV_PARITY_ODD)
+ ktermios.c_cflag |= PARODD;
+ }
+
+ return tty_set_termios(tty, &ktermios);
+}
+
static const struct serdev_controller_ops ctrl_ops = {
.write_buf = ttyport_write_buf,
.write_flush = ttyport_write_flush,
@@ -206,6 +223,7 @@ static const struct serdev_controller_ops ctrl_ops = {
.wait_until_sent = ttyport_wait_until_sent,
.get_tiocm = ttyport_get_tiocm,
.set_tiocm = ttyport_set_tiocm,
+ .set_parity = ttyport_set_parity,
};
struct device *serdev_tty_port_register(struct tty_port *port,
diff --git a/include/linux/serdev.h b/include/linux/serdev.h
index e69402d..8f60f11 100644
--- a/include/linux/serdev.h
+++ b/include/linux/serdev.h
@@ -76,6 +76,12 @@ static inline struct serdev_device_driver *to_serdev_device_driver(struct device
return container_of(d, struct serdev_device_driver, driver);
}
+enum serdev_parity {
+ SERDEV_PARITY_NONE,
+ SERDEV_PARITY_EVEN,
+ SERDEV_PARITY_ODD,
+};
+
/*
* serdev controller structures
*/
@@ -90,6 +96,7 @@ struct serdev_controller_ops {
void (*wait_until_sent)(struct serdev_controller *, long);
int (*get_tiocm)(struct serdev_controller *);
int (*set_tiocm)(struct serdev_controller *, unsigned int, unsigned int);
+ int (*set_parity)(struct serdev_controller *, enum serdev_parity);
};
/**
@@ -298,6 +305,9 @@ static inline int serdev_device_set_rts(struct serdev_device *serdev, bool enabl
return serdev_device_set_tiocm(serdev, 0, TIOCM_RTS);
}
+int serdev_device_set_parity(struct serdev_device *serdev,
+ enum serdev_parity parity);
+
/*
* serdev hooks into TTY core
*/
--
2.7.4
next prev parent reply other threads:[~2017-08-16 13:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-16 13:22 [PATCH 0/6] serdev multiplexing support Ulrich Hecht
2017-08-16 13:22 ` Ulrich Hecht [this message]
2017-08-16 13:22 ` [PATCH 2/6] serdev: add multiplexer support Ulrich Hecht
2017-08-16 13:22 ` [PATCH 3/6] serial: core: support deferring serdev controller registration Ulrich Hecht
2017-08-16 13:22 ` [PATCH 4/6] max9260: add driver for i2c over GMSL passthrough Ulrich Hecht
2017-08-16 13:22 ` [PATCH 5/6] ARM: dts: blanche: add SCIF1 and MAX9260 deserializer Ulrich Hecht
2017-08-21 8:54 ` Simon Horman
2017-08-16 13:22 ` [PATCH 6/6] dt-bindings: slave-device: add reg property Ulrich Hecht
2017-08-16 13:27 ` Laurent Pinchart
2017-08-28 12:55 ` [PATCH 0/6] serdev multiplexing support Greg KH
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