3 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 #include <stdio_dev.h>
30 #ifdef CONFIG_LOGBUFFER
33 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
37 DECLARE_GLOBAL_DATA_PTR;
39 static struct stdio_dev devs;
40 struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL };
41 char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
43 #if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV)
44 #define CONFIG_SYS_DEVICE_NULLDEV 1
48 #ifdef CONFIG_SYS_DEVICE_NULLDEV
49 void nulldev_putc(const char c)
51 /* nulldev is empty! */
54 void nulldev_puts(const char *s)
56 /* nulldev is empty! */
59 int nulldev_input(void)
61 /* nulldev is empty! */
66 /**************************************************************************
68 **************************************************************************
71 static void drv_system_init (void)
75 memset (&dev, 0, sizeof (dev));
77 strcpy (dev.name, "serial");
78 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
79 dev.putc = serial_putc;
80 dev.puts = serial_puts;
81 dev.getc = serial_getc;
82 dev.tstc = serial_tstc;
83 stdio_register (&dev);
85 #ifdef CONFIG_SYS_DEVICE_NULLDEV
86 memset (&dev, 0, sizeof (dev));
88 strcpy (dev.name, "nulldev");
89 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
90 dev.putc = nulldev_putc;
91 dev.puts = nulldev_puts;
92 dev.getc = nulldev_input;
93 dev.tstc = nulldev_input;
95 stdio_register (&dev);
99 /**************************************************************************
101 **************************************************************************
103 struct list_head* stdio_get_list(void)
108 struct stdio_dev* stdio_get_by_name(const char *name)
110 struct list_head *pos;
111 struct stdio_dev *dev;
116 list_for_each(pos, &(devs.list)) {
117 dev = list_entry(pos, struct stdio_dev, list);
118 if(strcmp(dev->name, name) == 0)
125 struct stdio_dev* stdio_clone(struct stdio_dev *dev)
127 struct stdio_dev *_dev;
132 _dev = calloc(1, sizeof(struct stdio_dev));
137 memcpy(_dev, dev, sizeof(struct stdio_dev));
138 strncpy(_dev->name, dev->name, 16);
143 int stdio_register (struct stdio_dev * dev)
145 struct stdio_dev *_dev;
147 _dev = stdio_clone(dev);
150 list_add_tail(&(_dev->list), &(devs.list));
154 /* deregister the device "devname".
155 * returns 0 if success, -1 if device is assigned and 1 if devname not found
157 #ifdef CONFIG_SYS_STDIO_DEREGISTER
158 int stdio_deregister(const char *devname)
161 struct list_head *pos;
162 struct stdio_dev *dev;
163 char temp_names[3][16];
165 dev = stdio_get_by_name(devname);
167 if(!dev) /* device not found */
169 /* get stdio devices (ListRemoveItem changes the dev list) */
170 for (l=0 ; l< MAX_FILES; l++) {
171 if (stdio_devices[l] == dev) {
172 /* Device is assigned -> report error */
175 memcpy (&temp_names[l][0],
176 stdio_devices[l]->name,
177 sizeof(temp_names[l]));
180 list_del(&(dev->list));
182 /* reassign Device list */
183 list_for_each(pos, &(devs.list)) {
184 dev = list_entry(pos, struct stdio_dev, list);
185 for (l=0 ; l< MAX_FILES; l++) {
186 if(strcmp(dev->name, temp_names[l]) == 0)
187 stdio_devices[l] = dev;
192 #endif /* CONFIG_SYS_STDIO_DEREGISTER */
194 int stdio_init (void)
196 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
197 /* already relocated for current ARM implementation */
198 ulong relocation_offset = gd->reloc_off;
201 /* relocate device name pointers */
202 for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
203 stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
206 #endif /* CONFIG_NEEDS_MANUAL_RELOC */
208 /* Initialize the list */
209 INIT_LIST_HEAD(&(devs.list));
211 #ifdef CONFIG_ARM_DCC_MULTI
214 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
215 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
220 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
223 #ifdef CONFIG_KEYBOARD
224 drv_keyboard_init ();
226 #ifdef CONFIG_LOGBUFFER
230 #ifdef CONFIG_SERIAL_MULTI
231 serial_stdio_init ();
233 #ifdef CONFIG_USB_TTY
236 #ifdef CONFIG_NETCONSOLE
239 #ifdef CONFIG_JTAG_CONSOLE
240 drv_jtag_console_init ();