]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/stdio.c
2 * Copyright (C) 2009 Sergey Kubushyn <ksi@koi8.net>
4 * Changes for multibus/multiadapter I2C support.
7 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
9 * SPDX-License-Identifier: GPL-2.0+
16 #include <stdio_dev.h>
18 #ifdef CONFIG_LOGBUFFER
22 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
26 DECLARE_GLOBAL_DATA_PTR
;
28 static struct stdio_dev devs
;
29 struct stdio_dev
*stdio_devices
[] = { NULL
, NULL
, NULL
};
30 char *stdio_names
[MAX_FILES
] = { "stdin", "stdout", "stderr" };
32 #if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV)
33 #define CONFIG_SYS_DEVICE_NULLDEV 1
37 #ifdef CONFIG_SYS_DEVICE_NULLDEV
38 void nulldev_putc(const char c
)
40 /* nulldev is empty! */
43 void nulldev_puts(const char *s
)
45 /* nulldev is empty! */
48 int nulldev_input(void)
50 /* nulldev is empty! */
55 /**************************************************************************
57 **************************************************************************
60 static void drv_system_init (void)
64 memset (&dev
, 0, sizeof (dev
));
66 strcpy (dev
.name
, "serial");
67 dev
.flags
= DEV_FLAGS_OUTPUT
| DEV_FLAGS_INPUT
| DEV_FLAGS_SYSTEM
;
68 dev
.putc
= serial_putc
;
69 dev
.puts
= serial_puts
;
70 dev
.getc
= serial_getc
;
71 dev
.tstc
= serial_tstc
;
72 stdio_register (&dev
);
74 #ifdef CONFIG_SYS_DEVICE_NULLDEV
75 memset (&dev
, 0, sizeof (dev
));
77 strcpy (dev
.name
, "nulldev");
78 dev
.flags
= DEV_FLAGS_OUTPUT
| DEV_FLAGS_INPUT
| DEV_FLAGS_SYSTEM
;
79 dev
.putc
= nulldev_putc
;
80 dev
.puts
= nulldev_puts
;
81 dev
.getc
= nulldev_input
;
82 dev
.tstc
= nulldev_input
;
84 stdio_register (&dev
);
88 /**************************************************************************
90 **************************************************************************
92 struct list_head
* stdio_get_list(void)
97 struct stdio_dev
* stdio_get_by_name(const char *name
)
99 struct list_head
*pos
;
100 struct stdio_dev
*dev
;
105 list_for_each(pos
, &(devs
.list
)) {
106 dev
= list_entry(pos
, struct stdio_dev
, list
);
107 if(strcmp(dev
->name
, name
) == 0)
114 struct stdio_dev
* stdio_clone(struct stdio_dev
*dev
)
116 struct stdio_dev
*_dev
;
121 _dev
= calloc(1, sizeof(struct stdio_dev
));
126 memcpy(_dev
, dev
, sizeof(struct stdio_dev
));
131 int stdio_register (struct stdio_dev
* dev
)
133 struct stdio_dev
*_dev
;
135 _dev
= stdio_clone(dev
);
138 list_add_tail(&(_dev
->list
), &(devs
.list
));
142 /* deregister the device "devname".
143 * returns 0 if success, -1 if device is assigned and 1 if devname not found
145 #ifdef CONFIG_SYS_STDIO_DEREGISTER
146 int stdio_deregister(const char *devname
)
149 struct list_head
*pos
;
150 struct stdio_dev
*dev
;
151 char temp_names
[3][16];
153 dev
= stdio_get_by_name(devname
);
155 if(!dev
) /* device not found */
157 /* get stdio devices (ListRemoveItem changes the dev list) */
158 for (l
=0 ; l
< MAX_FILES
; l
++) {
159 if (stdio_devices
[l
] == dev
) {
160 /* Device is assigned -> report error */
163 memcpy (&temp_names
[l
][0],
164 stdio_devices
[l
]->name
,
165 sizeof(temp_names
[l
]));
168 list_del(&(dev
->list
));
170 /* reassign Device list */
171 list_for_each(pos
, &(devs
.list
)) {
172 dev
= list_entry(pos
, struct stdio_dev
, list
);
173 for (l
=0 ; l
< MAX_FILES
; l
++) {
174 if(strcmp(dev
->name
, temp_names
[l
]) == 0)
175 stdio_devices
[l
] = dev
;
180 #endif /* CONFIG_SYS_STDIO_DEREGISTER */
182 int stdio_init (void)
184 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
185 /* already relocated for current ARM implementation */
186 ulong relocation_offset
= gd
->reloc_off
;
189 /* relocate device name pointers */
190 for (i
= 0; i
< (sizeof (stdio_names
) / sizeof (char *)); ++i
) {
191 stdio_names
[i
] = (char *) (((ulong
) stdio_names
[i
]) +
194 #endif /* CONFIG_NEEDS_MANUAL_RELOC */
196 /* Initialize the list */
197 INIT_LIST_HEAD(&(devs
.list
));
199 #ifdef CONFIG_SYS_I2C
202 #if defined(CONFIG_HARD_I2C)
203 i2c_init (CONFIG_SYS_I2C_SPEED
, CONFIG_SYS_I2C_SLAVE
);
209 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
212 #ifdef CONFIG_KEYBOARD
213 drv_keyboard_init ();
215 #ifdef CONFIG_LOGBUFFER
219 serial_stdio_init ();
220 #ifdef CONFIG_USB_TTY
223 #ifdef CONFIG_NETCONSOLE
226 #ifdef CONFIG_JTAG_CONSOLE
227 drv_jtag_console_init ();
229 #ifdef CONFIG_CBMEM_CONSOLE