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include/stdio_dev.h
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/* * (C) Copyright 2000 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it * * 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_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; }; /* * 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); #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 |