u-boot-brain/include/stdio_dev.h
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

117 lines
2.7 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2000
* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
*/
#ifndef _STDIO_DEV_H_
#define _STDIO_DEV_H_
#include <stdio.h>
#include <linux/list.h>
/*
* STDIO DEVICES
*/
#define DEV_FLAGS_INPUT 0x00000001 /* Device can be used as input console */
#define DEV_FLAGS_OUTPUT 0x00000002 /* Device can be used as output console */
#define DEV_FLAGS_DM 0x00000004 /* Device priv is a struct udevice * */
/* Device information */
struct stdio_dev {
int flags; /* Device flags: input/output/system */
int ext; /* Supported extensions */
char name[32]; /* Device name */
/* GENERAL functions */
int (*start)(struct stdio_dev *dev); /* To start the device */
int (*stop)(struct stdio_dev *dev); /* To stop the device */
/* OUTPUT functions */
/* To put a char */
void (*putc)(struct stdio_dev *dev, const char c);
/* To put a string (accelerator) */
void (*puts)(struct stdio_dev *dev, const char *s);
/* INPUT functions */
/* To test if a char is ready... */
int (*tstc)(struct stdio_dev *dev);
int (*getc)(struct stdio_dev *dev); /* To get that char */
/* Other functions */
void *priv; /* Private extensions */
struct list_head list;
};
/*
* VARIABLES
*/
extern struct stdio_dev *stdio_devices[];
extern char *stdio_names[MAX_FILES];
/*
* PROTOTYPES
*/
int stdio_register (struct stdio_dev * dev);
int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp);
/**
* stdio_init_tables() - set up stdio tables ready for devices
*
* This does not add any devices, but just prepares stdio for use.
*/
int stdio_init_tables(void);
/**
* stdio_add_devices() - Add stdio devices to the table
*
* This makes calls to all the various subsystems that use stdio, to make
* them register with stdio.
*/
int stdio_add_devices(void);
/**
* stdio_init() - Sets up stdio ready for use
*
* This calls stdio_init_tables() and stdio_add_devices()
*/
int stdio_init(void);
void stdio_print_current_devices(void);
#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
int stdio_deregister(const char *devname, int force);
int stdio_deregister_dev(struct stdio_dev *dev, int force);
#endif
struct list_head* stdio_get_list(void);
struct stdio_dev* stdio_get_by_name(const char* name);
struct stdio_dev* stdio_clone(struct stdio_dev *dev);
#ifdef CONFIG_LCD
int drv_lcd_init (void);
#endif
#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
int drv_video_init (void);
#endif
#ifdef CONFIG_KEYBOARD
int drv_keyboard_init (void);
#endif
#ifdef CONFIG_USB_TTY
int drv_usbtty_init (void);
#endif
#ifdef CONFIG_NETCONSOLE
int drv_nc_init (void);
#endif
#ifdef CONFIG_JTAG_CONSOLE
int drv_jtag_console_init (void);
#endif
#ifdef CONFIG_CBMEM_CONSOLE
int cbmemc_init(void);
#endif
#endif