From patchwork Thu Feb 24 09:55:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Slaby X-Patchwork-Id: 12758275 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B62D7C433EF for ; Thu, 24 Feb 2022 09:56:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233082AbiBXJ4c (ORCPT ); Thu, 24 Feb 2022 04:56:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49208 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232209AbiBXJ4a (ORCPT ); Thu, 24 Feb 2022 04:56:30 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6921C285AA2; Thu, 24 Feb 2022 01:56:01 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 26FEF1F44A; Thu, 24 Feb 2022 09:56:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1645696560; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=757ZRRjpJoiVS489R5WI0W5vTxny+PNszy3i98nF14M=; b=Hx43IEhL5S0JH1QQPNvVsNkeyUHpp+Bxwc5FSojlyPhtozRZZnw+ZEiZuLoOyODUS38dlr Gf+cfNQTAl3PlE4PBEFU9lB9En0Moj3lQPSwq6qlnBxCLrfIHKFIuuomYafe9YugQ8PkZe VU1ZF4SSL2h8/lJ1I1APn/LjULzkZFk= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1645696560; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=757ZRRjpJoiVS489R5WI0W5vTxny+PNszy3i98nF14M=; b=AlX7aBWo4+ZvAqOobLGxC0gwEW2VZ/fgkvq9hNQHPa1JBtCMVyb9A3YdIKlO83J7On+TII nHXgrTk6ZvDopIAA== Received: from localhost.localdomain (unknown [10.100.208.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id D7B81A3B98; Thu, 24 Feb 2022 09:55:59 +0000 (UTC) From: Jiri Slaby To: gregkh@linuxfoundation.org Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Jiri Slaby , Johan Hovold , linux-usb@vger.kernel.org Subject: [PATCH 3/5] USB: serial: make use of UART_LCR_WLEN() + tty_get_char_size() Date: Thu, 24 Feb 2022 10:55:56 +0100 Message-Id: <20220224095558.30929-3-jslaby@suse.cz> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220224095558.30929-1-jslaby@suse.cz> References: <20220224095517.30872-1-jslaby@suse.cz> <20220224095558.30929-1-jslaby@suse.cz> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org 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 Cc: Johan Hovold Cc: Greg Kroah-Hartman Cc: linux-usb@vger.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)