1 /* SPDX-License-Identifier: GPL-2.0+ */
11 #include <linux/list.h>
17 #define DEV_FLAGS_INPUT 0x00000001 /* Device can be used as input console */
18 #define DEV_FLAGS_OUTPUT 0x00000002 /* Device can be used as output console */
19 #define DEV_FLAGS_DM 0x00000004 /* Device priv is a struct udevice * */
21 /* Device information */
23 int flags; /* Device flags: input/output/system */
24 int ext; /* Supported extensions */
25 char name[32]; /* Device name */
27 /* GENERAL functions */
29 int (*start)(struct stdio_dev *dev); /* To start the device */
30 int (*stop)(struct stdio_dev *dev); /* To stop the device */
32 /* OUTPUT functions */
35 void (*putc)(struct stdio_dev *dev, const char c);
36 /* To put a string (accelerator) */
37 void (*puts)(struct stdio_dev *dev, const char *s);
41 /* To test if a char is ready... */
42 int (*tstc)(struct stdio_dev *dev);
43 int (*getc)(struct stdio_dev *dev); /* To get that char */
47 void *priv; /* Private extensions */
48 struct list_head list;
54 extern struct stdio_dev *stdio_devices[];
55 extern char *stdio_names[MAX_FILES];
60 int stdio_register(struct stdio_dev *dev);
61 int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp);
64 * stdio_init_tables() - set up stdio tables ready for devices
66 * This does not add any devices, but just prepares stdio for use.
68 int stdio_init_tables(void);
71 * stdio_add_devices() - Add stdio devices to the table
73 * This makes calls to all the various subsystems that use stdio, to make
74 * them register with stdio.
76 int stdio_add_devices(void);
79 * stdio_init() - Sets up stdio ready for use
81 * This calls stdio_init_tables() and stdio_add_devices()
85 void stdio_print_current_devices(void);
86 int stdio_deregister(const char *devname, int force);
89 * stdio_deregister_dev() - deregister the device "devname".
91 * @dev: Stdio device to deregister
92 * @force: true to force deregistration even if in use
94 * returns 0 on success, -EBUSY if device is assigned
96 int stdio_deregister_dev(struct stdio_dev *dev, int force);
97 struct list_head *stdio_get_list(void);
98 struct stdio_dev *stdio_get_by_name(const char *name);
99 struct stdio_dev *stdio_clone(struct stdio_dev *dev);
101 int drv_lcd_init(void);
102 int drv_video_init(void);
103 int drv_keyboard_init(void);
104 int drv_usbtty_init(void);
105 int drv_nc_init(void);
106 int drv_jtag_console_init(void);
107 int cbmemc_init(void);