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Date: Thu, 24 Feb 2022 10:55:56 +0100
From: Jiri Slaby <jslaby@...e.cz>
To: gregkh@...uxfoundation.org
Cc: linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
Jiri Slaby <jslaby@...e.cz>, Johan Hovold <johan@...nel.org>,
linux-usb@...r.kernel.org
Subject: [PATCH 3/5] USB: serial: make use of UART_LCR_WLEN() + tty_get_char_size()
Having a generic UART_LCR_WLEN() macro and the tty_get_char_size()
helper, we can remove all those repeated switch-cases in drivers.
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
Cc: Johan Hovold <johan@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org
---
drivers/usb/serial/ark3116.c | 17 ++---------------
drivers/usb/serial/f81232.c | 16 +---------------
drivers/usb/serial/f81534.c | 16 +---------------
drivers/usb/serial/mos7720.c | 20 +-------------------
drivers/usb/serial/quatech2.c | 16 +---------------
drivers/usb/serial/ssu100.c | 16 +---------------
6 files changed, 7 insertions(+), 94 deletions(-)
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 5dd710e9fe7d..c0e4df87ff22 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -200,21 +200,8 @@ static void ark3116_set_termios(struct tty_struct *tty,
__u8 lcr, hcr, eval;
/* set data bit count */
- switch (cflag & CSIZE) {
- case CS5:
- lcr = UART_LCR_WLEN5;
- break;
- case CS6:
- lcr = UART_LCR_WLEN6;
- break;
- case CS7:
- lcr = UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- lcr = UART_LCR_WLEN8;
- break;
- }
+ lcr = UART_LCR_WLEN(tty_get_char_size(cflag));
+
if (cflag & CSTOPB)
lcr |= UART_LCR_STOP;
if (cflag & PARENB)
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 3ad1f515fb68..d9f20256a6a8 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -643,21 +643,7 @@ static void f81232_set_termios(struct tty_struct *tty,
if (C_CSTOPB(tty))
new_lcr |= UART_LCR_STOP;
- switch (C_CSIZE(tty)) {
- case CS5:
- new_lcr |= UART_LCR_WLEN5;
- break;
- case CS6:
- new_lcr |= UART_LCR_WLEN6;
- break;
- case CS7:
- new_lcr |= UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- new_lcr |= UART_LCR_WLEN8;
- break;
- }
+ new_lcr |= UART_LCR_WLEN(tty_get_char_size(tty->termios.c_cflag));
mutex_lock(&priv->lock);
diff --git a/drivers/usb/serial/f81534.c b/drivers/usb/serial/f81534.c
index c0bca52ef92a..d789c1ec87b3 100644
--- a/drivers/usb/serial/f81534.c
+++ b/drivers/usb/serial/f81534.c
@@ -970,21 +970,7 @@ static void f81534_set_termios(struct tty_struct *tty,
if (C_CSTOPB(tty))
new_lcr |= UART_LCR_STOP;
- switch (C_CSIZE(tty)) {
- case CS5:
- new_lcr |= UART_LCR_WLEN5;
- break;
- case CS6:
- new_lcr |= UART_LCR_WLEN6;
- break;
- case CS7:
- new_lcr |= UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- new_lcr |= UART_LCR_WLEN8;
- break;
- }
+ new_lcr |= UART_LCR_WLEN(tty_get_char_size(tty->termios.c_cflag));
baud = tty_get_baud_rate(tty);
if (!baud)
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 227f43d2bd56..1e12b5f30dcc 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1380,30 +1380,12 @@ static void change_port_settings(struct tty_struct *tty,
return;
}
- lData = UART_LCR_WLEN8;
lStop = 0x00; /* 1 stop bit */
lParity = 0x00; /* No parity */
cflag = tty->termios.c_cflag;
- /* Change the number of bits */
- switch (cflag & CSIZE) {
- case CS5:
- lData = UART_LCR_WLEN5;
- break;
-
- case CS6:
- lData = UART_LCR_WLEN6;
- break;
-
- case CS7:
- lData = UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- lData = UART_LCR_WLEN8;
- break;
- }
+ lData = UART_LCR_WLEN(tty_get_char_size(cflag));
/* Change the Parity bit */
if (cflag & PARENB) {
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index 971907f083a3..36b1e064e51f 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -281,21 +281,7 @@ static void qt2_set_termios(struct tty_struct *tty,
new_lcr |= SERIAL_EVEN_PARITY;
}
- switch (cflag & CSIZE) {
- case CS5:
- new_lcr |= UART_LCR_WLEN5;
- break;
- case CS6:
- new_lcr |= UART_LCR_WLEN6;
- break;
- case CS7:
- new_lcr |= UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- new_lcr |= UART_LCR_WLEN8;
- break;
- }
+ new_lcr |= UART_LCR_WLEN(tty_get_char_size(cflag));
baud = tty_get_baud_rate(tty);
if (!baud)
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index 3baf7c0f5a98..181e302136a5 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -231,21 +231,7 @@ static void ssu100_set_termios(struct tty_struct *tty,
urb_value |= SERIAL_EVEN_PARITY;
}
- switch (cflag & CSIZE) {
- case CS5:
- urb_value |= UART_LCR_WLEN5;
- break;
- case CS6:
- urb_value |= UART_LCR_WLEN6;
- break;
- case CS7:
- urb_value |= UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- urb_value |= UART_LCR_WLEN8;
- break;
- }
+ urb_value |= UART_LCR_WLEN(tty_get_char_size(cflag));
baud = tty_get_baud_rate(tty);
if (!baud)
--
2.35.1
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