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892bc209f2
This makes all those 'char's an explicit 'u8'. This is part of the continuing unification of chars and flags to be consistent u8. This approaches tty_port_default_receive_buf(). Note that we do not change signedness as we compile with -funsigned-char. Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org> Cc: William Hubbs <w.d.hubbs@gmail.com> Cc: Chris Brannon <chris@the-brannons.com> Cc: Kirk Reiser <kirk@reisers.ca> Cc: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Max Staudt <max@enpas.org> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Dario Binacchi <dario.binacchi@amarulasolutions.com> Cc: Andreas Koensgen <ajk@comnets.uni-bremen.de> Cc: Jeremy Kerr <jk@codeconstruct.com.au> Cc: Matt Johnston <matt@codeconstruct.com.au> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230810091510.13006-18-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_TTY_FLIP_H
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#define _LINUX_TTY_FLIP_H
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#include <linux/tty_buffer.h>
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#include <linux/tty_port.h>
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struct tty_ldisc;
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int tty_buffer_set_limit(struct tty_port *port, int limit);
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unsigned int tty_buffer_space_avail(struct tty_port *port);
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int tty_buffer_request_room(struct tty_port *port, size_t size);
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int tty_insert_flip_string_flags(struct tty_port *port, const u8 *chars,
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const u8 *flags, size_t size);
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int tty_insert_flip_string_fixed_flag(struct tty_port *port, const u8 *chars,
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u8 flag, size_t size);
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int tty_prepare_flip_string(struct tty_port *port, u8 **chars, size_t size);
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void tty_flip_buffer_push(struct tty_port *port);
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int __tty_insert_flip_char(struct tty_port *port, u8 ch, u8 flag);
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static inline int tty_insert_flip_char(struct tty_port *port, u8 ch, u8 flag)
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{
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struct tty_buffer *tb = port->buf.tail;
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int change;
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change = !tb->flags && (flag != TTY_NORMAL);
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if (!change && tb->used < tb->size) {
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if (tb->flags)
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*flag_buf_ptr(tb, tb->used) = flag;
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*char_buf_ptr(tb, tb->used++) = ch;
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return 1;
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}
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return __tty_insert_flip_char(port, ch, flag);
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}
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static inline int tty_insert_flip_string(struct tty_port *port,
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const u8 *chars, size_t size)
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{
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return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
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}
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size_t tty_ldisc_receive_buf(struct tty_ldisc *ld, const u8 *p, const u8 *f,
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size_t count);
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void tty_buffer_lock_exclusive(struct tty_port *port);
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void tty_buffer_unlock_exclusive(struct tty_port *port);
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#endif /* _LINUX_TTY_FLIP_H */
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