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,
30 #ifdef CONFIG_LOGBUFFER
33 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
37 DECLARE_GLOBAL_DATA_PTR;
40 device_t *stdio_devices[] = { NULL, NULL, NULL };
41 char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
43 #if defined(CONFIG_SPLASH_SCREEN) && !defined(CFG_DEVICE_NULLDEV)
44 #define CFG_DEVICE_NULLDEV 1
48 #ifdef CFG_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 device_register (&dev);
93 #ifdef CFG_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 device_register (&dev);
107 /**************************************************************************
109 **************************************************************************
111 struct list_head* device_get_list(void)
116 device_t* device_get_by_name(char* name)
118 struct list_head *pos;
124 list_for_each(pos, &(devs.list)) {
125 dev = list_entry(pos, device_t, list);
126 if(strcmp(dev->name, name) == 0)
134 int device_register (device_t * dev)
136 list_add(&(dev->list), &(devs.list));
140 /* deregister the device "devname".
141 * returns 0 if success, -1 if device is assigned and 1 if devname not found
143 #ifdef CFG_DEVICE_DEREGISTER
144 int device_deregister(char *devname)
147 struct list_head *pos;
149 char temp_names[3][8];
151 dev = device_get_by_name(devname);
153 if(!dev) /* device not found */
155 /* get stdio devices (ListRemoveItem changes the dev list) */
156 for (l=0 ; l< MAX_FILES; l++) {
157 if (stdio_devices[l] == dev) {
158 /* Device is assigned -> report error */
161 memcpy (&temp_names[l][0],
162 stdio_devices[l]->name,
163 sizeof(stdio_devices[l]->name));
166 list_del(&(dev->list));
168 /* reassign Device list */
169 list_for_each(pos, &(devs.list)) {
170 dev = list_entry(pos, device_t, list);
171 for (l=0 ; l< MAX_FILES; l++) {
172 if(strcmp(dev->name, temp_names[l]) == 0)
173 stdio_devices[l] = dev;
178 #endif /* CFG_DEVICE_DEREGISTER */
180 int devices_init (void)
182 #ifndef CONFIG_ARM /* already relocated for current ARM implementation */
183 ulong relocation_offset = gd->reloc_off;
186 /* relocate device name pointers */
187 for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
188 stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
193 /* Initialize the list */
194 INIT_LIST_HEAD(&(devs.list));
196 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
197 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
202 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
205 #ifdef CONFIG_KEYBOARD
206 drv_keyboard_init ();
208 #ifdef CONFIG_LOGBUFFER
212 #ifdef CONFIG_SERIAL_MULTI
213 serial_devices_init ();
215 #ifdef CONFIG_USB_TTY
218 #ifdef CONFIG_NETCONSOLE