1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
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 int stdio_file_to_flags(const int file);
23 /* Device information */
25 int flags; /* Device flags: input/output/system */
26 int ext; /* Supported extensions */
27 char name[32]; /* Device name */
29 /* GENERAL functions */
31 int (*start)(struct stdio_dev *dev); /* To start the device */
32 int (*stop)(struct stdio_dev *dev); /* To stop the device */
34 /* OUTPUT functions */
37 void (*putc)(struct stdio_dev *dev, const char c);
38 /* To put a string (accelerator) */
39 void (*puts)(struct stdio_dev *dev, const char *s);
43 /* To test if a char is ready... */
44 int (*tstc)(struct stdio_dev *dev);
45 int (*getc)(struct stdio_dev *dev); /* To get that char */
49 void *priv; /* Private extensions */
50 struct list_head list;
56 extern struct stdio_dev *stdio_devices[];
57 extern char *stdio_names[MAX_FILES];
62 int stdio_register(struct stdio_dev *dev);
63 int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp);
66 * stdio_init_tables() - set up stdio tables ready for devices
68 * This does not add any devices, but just prepares stdio for use.
70 int stdio_init_tables(void);
73 * stdio_add_devices() - Add stdio devices to the table
75 * This makes calls to all the various subsystems that use stdio, to make
76 * them register with stdio.
78 int stdio_add_devices(void);
81 * stdio_init() - Sets up stdio ready for use
83 * This calls stdio_init_tables() and stdio_add_devices()
87 void stdio_print_current_devices(void);
90 * stdio_deregister_dev() - deregister the device "devname".
92 * @dev: Stdio device to deregister
93 * @force: true to force deregistration even if in use
95 * returns 0 on success, -EBUSY if device is assigned
97 int stdio_deregister_dev(struct stdio_dev *dev, int force);
98 struct list_head *stdio_get_list(void);
99 struct stdio_dev *stdio_get_by_name(const char *name);
100 struct stdio_dev *stdio_clone(struct stdio_dev *dev);
102 int drv_lcd_init(void);
103 int drv_video_init(void);
104 int drv_keyboard_init(void);
105 int drv_usbtty_init(void);
106 int drv_nc_init(void);
107 int drv_jtag_console_init(void);
108 int cbmemc_init(void);