config-gta02v5-beyond.patch
[u-boot-openmoko/mini2440.git] / common / serial.c
blobdbf0a869350e0c320189f12675eb13c5d213b8dc
1 /*
2 * (C) Copyright 2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
6 * project.
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,
21 * MA 02111-1307 USA
24 #include <common.h>
25 #include <serial.h>
26 #include <devices.h>
28 DECLARE_GLOBAL_DATA_PTR;
30 #if defined(CONFIG_SERIAL_MULTI)
32 static struct serial_device *serial_devices = NULL;
33 static struct serial_device *serial_current = NULL;
35 #if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
36 struct serial_device *__default_serial_console (void)
38 #if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
39 return &serial_smc_device;
40 #elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
41 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
42 return &serial_scc_device;
43 #elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
44 || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
45 || defined(CONFIG_MPC5xxx)
46 #if defined(CONFIG_CONS_INDEX) && defined(CFG_NS16550_SERIAL)
47 #if (CONFIG_CONS_INDEX==1)
48 return &eserial1_device;
49 #elif (CONFIG_CONS_INDEX==2)
50 return &eserial2_device;
51 #elif (CONFIG_CONS_INDEX==3)
52 return &eserial3_device;
53 #elif (CONFIG_CONS_INDEX==4)
54 return &eserial4_device;
55 #else
56 #error "Bad CONFIG_CONS_INDEX."
57 #endif
58 #elif defined(CONFIG_UART1_CONSOLE)
59 return &serial1_device;
60 #else
61 return &serial0_device;
62 #endif
63 #elif defined(CONFIG_S3C2410) || defined(CONFIG_S3C2440) || \
64 defined(CONFIG_S3C2442)
65 #if defined(CONFIG_SERIAL1)
66 return &s3c24xx_serial0_device;
67 #elif defined(CONFIG_SERIAL2)
68 return &s3c24xx_serial1_device;
69 #elif defined(CONFIG_SERIAL3)
70 return &s3c24xx_serial2_device;
71 #else
72 #error "CONFIG_SERIAL? missing."
73 #endif
74 #else
75 #error No default console
76 #endif
79 struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
80 #endif
82 int serial_register (struct serial_device *dev)
84 dev->init += gd->reloc_off;
85 dev->setbrg += gd->reloc_off;
86 dev->getc += gd->reloc_off;
87 dev->tstc += gd->reloc_off;
88 dev->putc += gd->reloc_off;
89 dev->puts += gd->reloc_off;
91 dev->next = serial_devices;
92 serial_devices = dev;
94 return 0;
97 void serial_initialize (void)
99 #if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
100 serial_register (&serial_smc_device);
101 #endif
102 #if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
103 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
104 serial_register (&serial_scc_device);
105 #endif
107 #if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
108 || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
109 || defined(CONFIG_MPC5xxx)
110 serial_register(&serial0_device);
111 serial_register(&serial1_device);
112 #endif
114 #if defined(CFG_NS16550_SERIAL)
115 #if defined(CFG_NS16550_COM1)
116 serial_register(&eserial1_device);
117 #endif
118 #if defined(CFG_NS16550_COM2)
119 serial_register(&eserial2_device);
120 #endif
121 #if defined(CFG_NS16550_COM3)
122 serial_register(&eserial3_device);
123 #endif
124 #if defined(CFG_NS16550_COM4)
125 serial_register(&eserial4_device);
126 #endif
127 #endif /* CFG_NS16550_SERIAL */
128 #if defined (CONFIG_FFUART)
129 serial_register(&serial_ffuart_device);
130 #endif
131 #if defined (CONFIG_BTUART)
132 serial_register(&serial_btuart_device);
133 #endif
134 #if defined (CONFIG_STUART)
135 serial_register(&serial_stuart_device);
136 #endif
137 #if defined(CONFIG_S3C2410) || defined(CONFIG_S3C2440) || \
138 defined(CONFIG_S3C2442)
139 serial_register(&s3c24xx_serial0_device);
140 serial_register(&s3c24xx_serial1_device);
141 serial_register(&s3c24xx_serial2_device);
142 #endif
143 serial_assign (default_serial_console ()->name);
146 void serial_devices_init (void)
148 device_t dev;
149 struct serial_device *s = serial_devices;
151 while (s) {
152 memset (&dev, 0, sizeof (dev));
154 strcpy (dev.name, s->name);
155 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
157 dev.start = s->init;
158 dev.putc = s->putc;
159 dev.puts = s->puts;
160 dev.getc = s->getc;
161 dev.tstc = s->tstc;
163 device_register (&dev);
165 s = s->next;
169 int serial_assign (char *name)
171 struct serial_device *s;
173 for (s = serial_devices; s; s = s->next) {
174 if (strcmp (s->name, name) == 0) {
175 serial_current = s;
176 return 0;
180 return 1;
183 void serial_reinit_all (void)
185 struct serial_device *s;
187 for (s = serial_devices; s; s = s->next) {
188 s->init ();
192 int serial_init (void)
194 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
195 struct serial_device *dev = default_serial_console ();
197 return dev->init ();
200 return serial_current->init ();
203 void serial_setbrg (void)
205 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
206 struct serial_device *dev = default_serial_console ();
208 dev->setbrg ();
209 return;
212 serial_current->setbrg ();
215 int serial_getc (void)
217 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
218 struct serial_device *dev = default_serial_console ();
220 return dev->getc ();
223 return serial_current->getc ();
226 int serial_tstc (void)
228 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
229 struct serial_device *dev = default_serial_console ();
231 return dev->tstc ();
234 return serial_current->tstc ();
237 void serial_putc (const char c)
239 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
240 struct serial_device *dev = default_serial_console ();
242 dev->putc (c);
243 return;
246 serial_current->putc (c);
249 void serial_puts (const char *s)
251 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
252 struct serial_device *dev = default_serial_console ();
254 dev->puts (s);
255 return;
258 serial_current->puts (s);
261 #endif /* CONFIG_SERIAL_MULTI */