3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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 #if defined(CONFIG_SERIAL_MULTI)
30 static struct serial_device *serial_devices = NULL;
31 static struct serial_device *serial_current = NULL;
34 struct serial_device *default_serial_console (void)
36 #if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
37 return &serial_smc_device;
38 #elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
39 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
40 return &serial_scc_device;
42 #error No default console
47 static int serial_register (struct serial_device *dev)
49 DECLARE_GLOBAL_DATA_PTR;
51 dev->init += gd->reloc_off;
52 dev->setbrg += gd->reloc_off;
53 dev->getc += gd->reloc_off;
54 dev->tstc += gd->reloc_off;
55 dev->putc += gd->reloc_off;
56 dev->puts += gd->reloc_off;
58 dev->next = serial_devices;
64 void serial_initialize (void)
66 #if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
67 serial_register (&serial_smc_device);
69 #if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
70 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
71 serial_register (&serial_scc_device);
74 serial_assign (default_serial_console ()->name);
77 void serial_devices_init (void)
80 struct serial_device *s = serial_devices;
83 memset (&dev, 0, sizeof (dev));
85 strcpy (dev.name, s->name);
86 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
94 device_register (&dev);
100 int serial_assign (char *name)
102 struct serial_device *s;
104 for (s = serial_devices; s; s = s->next) {
105 if (strcmp (s->name, name) == 0) {
114 void serial_reinit_all (void)
116 struct serial_device *s;
118 for (s = serial_devices; s; s = s->next) {
123 int serial_init (void)
125 DECLARE_GLOBAL_DATA_PTR;
127 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
128 struct serial_device *dev = default_serial_console ();
133 return serial_current->init ();
136 void serial_setbrg (void)
138 DECLARE_GLOBAL_DATA_PTR;
140 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
141 struct serial_device *dev = default_serial_console ();
147 serial_current->setbrg ();
150 int serial_getc (void)
152 DECLARE_GLOBAL_DATA_PTR;
154 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
155 struct serial_device *dev = default_serial_console ();
160 return serial_current->getc ();
163 int serial_tstc (void)
165 DECLARE_GLOBAL_DATA_PTR;
167 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
168 struct serial_device *dev = default_serial_console ();
173 return serial_current->tstc ();
176 void serial_putc (const char c)
178 DECLARE_GLOBAL_DATA_PTR;
180 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
181 struct serial_device *dev = default_serial_console ();
187 serial_current->putc (c);
190 void serial_puts (const char *s)
192 DECLARE_GLOBAL_DATA_PTR;
194 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
195 struct serial_device *dev = default_serial_console ();
201 serial_current->puts (s);
204 #endif /* CONFIG_SERIAL_MULTI */