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stdio_dev.h
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/*
* (C) Copyright 2000
* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), [email protected]
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _STDIO_DEV_H_
#define _STDIO_DEV_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_SYSTEM 0x80000000 /* Device is a system device */
#define DEV_EXT_VIDEO 0x00000001 /* Video extensions supported */
/* 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;
};
/*
* VIDEO EXTENSIONS
*/
#define VIDEO_FORMAT_RGB_INDEXED 0x0000
#define VIDEO_FORMAT_RGB_DIRECTCOLOR 0x0001
#define VIDEO_FORMAT_YUYV_4_4_4 0x0010
#define VIDEO_FORMAT_YUYV_4_2_2 0x0011
typedef struct {
void *address; /* Address of framebuffer */
ushort width; /* Horizontal resolution */
ushort height; /* Vertical resolution */
uchar format; /* Format */
uchar colors; /* Colors number or color depth */
void (*setcolreg) (int, int, int, int);
void (*getcolreg) (int, void *);
} video_ext_t;
/*
* 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);
#ifdef CONFIG_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