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,
29 #ifdef CONFIG_LOGBUFFER
32 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
37 device_t *stdio_devices[] = { NULL, NULL, NULL };
38 char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
40 #if defined(CONFIG_SPLASH_SCREEN) && !defined(CFG_DEVICE_NULLDEV)
41 #define CFG_DEVICE_NULLDEV 1
45 #ifdef CFG_DEVICE_NULLDEV
46 void nulldev_putc(const char c)
48 /* nulldev is empty! */
51 void nulldev_puts(const char *s)
53 /* nulldev is empty! */
56 int nulldev_input(void)
58 /* nulldev is empty! */
63 /**************************************************************************
65 **************************************************************************
68 static void drv_system_init (void)
72 memset (&dev, 0, sizeof (dev));
74 strcpy (dev.name, "serial");
75 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
76 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
77 dev.putc = serial_buffered_putc;
78 dev.puts = serial_buffered_puts;
79 dev.getc = serial_buffered_getc;
80 dev.tstc = serial_buffered_tstc;
82 dev.putc = serial_putc;
83 dev.puts = serial_puts;
84 dev.getc = serial_getc;
85 dev.tstc = serial_tstc;
88 device_register (&dev);
90 #ifdef CFG_DEVICE_NULLDEV
91 memset (&dev, 0, sizeof (dev));
93 strcpy (dev.name, "nulldev");
94 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
95 dev.putc = nulldev_putc;
96 dev.puts = nulldev_puts;
97 dev.getc = nulldev_input;
98 dev.tstc = nulldev_input;
100 device_register (&dev);
104 /**************************************************************************
106 **************************************************************************
109 int device_register (device_t * dev)
111 ListInsertItem (devlist, dev, LIST_END);
115 /* deregister the device "devname".
116 * returns 0 if success, -1 if device is assigned and 1 if devname not found
118 #ifdef CFG_DEVICE_DEREGISTER
119 int device_deregister(char *devname)
122 device_t *dev = NULL;
123 char temp_names[3][8];
126 for (i=1; i<=ListNumItems(devlist); i++) {
127 dev = ListGetPtrToItem (devlist, i);
128 if(strcmp(dev->name,devname)==0) {
133 if(dev_index<0) /* device not found */
135 /* get stdio devices (ListRemoveItem changes the dev list) */
136 for (l=0 ; l< MAX_FILES; l++) {
137 if (stdio_devices[l] == dev) {
138 /* Device is assigned -> report error */
141 memcpy (&temp_names[l][0],
142 stdio_devices[l]->name,
143 sizeof(stdio_devices[l]->name));
145 ListRemoveItem(devlist,NULL,dev_index);
146 /* reassign Device list */
147 for (i=1; i<=ListNumItems(devlist); i++) {
148 dev = ListGetPtrToItem (devlist, i);
149 for (l=0 ; l< MAX_FILES; l++) {
150 if(strcmp(dev->name,temp_names[l])==0) {
151 stdio_devices[l] = dev;
157 #endif /* CFG_DEVICE_DEREGISTER */
159 int devices_init (void)
161 #ifndef CONFIG_ARM /* already relocated for current ARM implementation */
162 DECLARE_GLOBAL_DATA_PTR;
164 ulong relocation_offset = gd->reloc_off;
167 /* relocate device name pointers */
168 for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
169 stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
174 /* Initialize the list */
175 devlist = ListCreate (sizeof (device_t));
177 if (devlist == NULL) {
178 eputs ("Cannot initialize the list of devices!\n");
181 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
182 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
187 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
190 #ifdef CONFIG_KEYBOARD
191 drv_keyboard_init ();
193 #ifdef CONFIG_LOGBUFFER
197 #ifdef CONFIG_USB_TTY
204 int devices_done (void)
206 ListDispose (devlist);