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 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
80 dev.putc = serial_buffered_putc;
81 dev.puts = serial_buffered_puts;
82 dev.getc = serial_buffered_getc;
83 dev.tstc = serial_buffered_tstc;
85 dev.putc = serial_putc;
86 dev.puts = serial_puts;
87 dev.getc = serial_getc;
88 dev.tstc = serial_tstc;
91 stdio_register (&dev);
93 #ifdef CONFIG_SYS_DEVICE_NULLDEV
94 memset (&dev, 0, sizeof (dev));
96 strcpy (dev.name, "nulldev");
97 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
98 dev.putc = nulldev_putc;
99 dev.puts = nulldev_puts;
100 dev.getc = nulldev_input;
101 dev.tstc = nulldev_input;
103 stdio_register (&dev);
107 /**************************************************************************
109 **************************************************************************
111 struct list_head* stdio_get_list(void)
116 struct stdio_dev* stdio_get_by_name(char* name)
118 struct list_head *pos;
119 struct stdio_dev *dev;
124 list_for_each(pos, &(devs.list)) {
125 dev = list_entry(pos, struct stdio_dev, list);
126 if(strcmp(dev->name, name) == 0)
133 struct stdio_dev* stdio_clone(struct stdio_dev *dev)
135 struct stdio_dev *_dev;
140 _dev = calloc(1, sizeof(struct stdio_dev));
145 memcpy(_dev, dev, sizeof(struct stdio_dev));
146 strncpy(_dev->name, dev->name, 16);
151 int stdio_register (struct stdio_dev * dev)
153 struct stdio_dev *_dev;
155 _dev = stdio_clone(dev);
158 list_add_tail(&(_dev->list), &(devs.list));
162 /* deregister the device "devname".
163 * returns 0 if success, -1 if device is assigned and 1 if devname not found
165 #ifdef CONFIG_SYS_STDIO_DEREGISTER
166 int stdio_deregister(char *devname)
169 struct list_head *pos;
170 struct stdio_dev *dev;
171 char temp_names[3][8];
173 dev = stdio_get_by_name(devname);
175 if(!dev) /* device not found */
177 /* get stdio devices (ListRemoveItem changes the dev list) */
178 for (l=0 ; l< MAX_FILES; l++) {
179 if (stdio_devices[l] == dev) {
180 /* Device is assigned -> report error */
183 memcpy (&temp_names[l][0],
184 stdio_devices[l]->name,
185 sizeof(stdio_devices[l]->name));
188 list_del(&(dev->list));
190 /* reassign Device list */
191 list_for_each(pos, &(devs.list)) {
192 dev = list_entry(pos, struct stdio_dev, list);
193 for (l=0 ; l< MAX_FILES; l++) {
194 if(strcmp(dev->name, temp_names[l]) == 0)
195 stdio_devices[l] = dev;
200 #endif /* CONFIG_SYS_STDIO_DEREGISTER */
202 int stdio_init (void)
204 #if !defined(CONFIG_RELOC_FIXUP_WORKS)
205 /* already relocated for current ARM implementation */
206 ulong relocation_offset = gd->reloc_off;
209 /* relocate device name pointers */
210 for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
211 stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
214 #endif /* !CONFIG_RELOC_FIXUP_WORKS */
216 /* Initialize the list */
217 INIT_LIST_HEAD(&(devs.list));
219 #ifdef CONFIG_ARM_DCC_MULTI
222 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
223 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
228 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
231 #ifdef CONFIG_KEYBOARD
232 drv_keyboard_init ();
234 #ifdef CONFIG_LOGBUFFER
238 #ifdef CONFIG_SERIAL_MULTI
239 serial_stdio_init ();
241 #ifdef CONFIG_USB_TTY
244 #ifdef CONFIG_NETCONSOLE
247 #ifdef CONFIG_JTAG_CONSOLE
248 drv_jtag_console_init ();