luckfox-pico-sdk/sysdrv/source/kernel/include/linux/tty_flip.h
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

46 lines
1.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_TTY_FLIP_H
#define _LINUX_TTY_FLIP_H
extern int tty_buffer_set_limit(struct tty_port *port, int limit);
extern int tty_buffer_space_avail(struct tty_port *port);
extern int tty_buffer_request_room(struct tty_port *port, size_t size);
extern int tty_insert_flip_string_flags(struct tty_port *port,
const unsigned char *chars, const char *flags, size_t size);
extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
const unsigned char *chars, char flag, size_t size);
extern int tty_prepare_flip_string(struct tty_port *port,
unsigned char **chars, size_t size);
extern void tty_flip_buffer_push(struct tty_port *port);
int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag);
static inline int tty_insert_flip_char(struct tty_port *port,
unsigned char ch, char flag)
{
struct tty_buffer *tb = port->buf.tail;
int change;
change = (tb->flags & TTYB_NORMAL) && (flag != TTY_NORMAL);
if (!change && tb->used < tb->size) {
if (~tb->flags & TTYB_NORMAL)
*flag_buf_ptr(tb, tb->used) = flag;
*char_buf_ptr(tb, tb->used++) = ch;
return 1;
}
return __tty_insert_flip_char(port, ch, flag);
}
static inline int tty_insert_flip_string(struct tty_port *port,
const unsigned char *chars, size_t size)
{
return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
}
extern void tty_buffer_lock_exclusive(struct tty_port *port);
extern void tty_buffer_unlock_exclusive(struct tty_port *port);
int tty_insert_flip_string_and_push_buffer(struct tty_port *port,
const unsigned char *chars, size_t cnt);
#endif /* _LINUX_TTY_FLIP_H */