source: SVN/rincon/u-boot/common/serial.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 6.0 KB
Line 
1/*
2 * (C) Copyright 2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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
22 */
23
24#include <common.h>
25#include <serial.h>
26#include <devices.h>
27
28DECLARE_GLOBAL_DATA_PTR;
29
30#if defined(CONFIG_SERIAL_MULTI)
31
32static struct serial_device *serial_devices = NULL;
33static struct serial_device *serial_current = NULL;
34
35#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
36struct serial_device *__default_serial_console (void)
37{
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)
64#if defined(CONFIG_SERIAL1)
65        return &s3c24xx_serial0_device;
66#elif defined(CONFIG_SERIAL2)
67        return &s3c24xx_serial1_device;
68#elif defined(CONFIG_SERIAL3)
69        return &s3c24xx_serial2_device;
70#else
71#error "CONFIG_SERIAL? missing."
72#endif
73#else
74#error No default console
75#endif
76}
77
78struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
79#endif
80
81int serial_register (struct serial_device *dev)
82{
83        dev->init += gd->reloc_off;
84        dev->setbrg += gd->reloc_off;
85        dev->getc += gd->reloc_off;
86        dev->tstc += gd->reloc_off;
87        dev->putc += gd->reloc_off;
88        dev->puts += gd->reloc_off;
89
90        dev->next = serial_devices;
91        serial_devices = dev;
92
93        return 0;
94}
95
96void serial_initialize (void)
97{
98#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
99        serial_register (&serial_smc_device);
100#endif
101#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
102 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
103        serial_register (&serial_scc_device);
104#endif
105
106#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
107 || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
108 || defined(CONFIG_MPC5xxx)
109        serial_register(&serial0_device);
110        serial_register(&serial1_device);
111#endif
112
113#if defined(CFG_NS16550_SERIAL)
114#if defined(CFG_NS16550_COM1)
115        serial_register(&eserial1_device);
116#endif
117#if defined(CFG_NS16550_COM2)
118        serial_register(&eserial2_device);
119#endif
120#if defined(CFG_NS16550_COM3)
121        serial_register(&eserial3_device);
122#endif
123#if defined(CFG_NS16550_COM4)
124        serial_register(&eserial4_device);
125#endif
126#endif /* CFG_NS16550_SERIAL */
127#if defined (CONFIG_FFUART)
128        serial_register(&serial_ffuart_device);
129#endif
130#if defined (CONFIG_BTUART)
131        serial_register(&serial_btuart_device);
132#endif
133#if defined (CONFIG_STUART)
134        serial_register(&serial_stuart_device);
135#endif
136#if defined(CONFIG_S3C2410)
137        serial_register(&s3c24xx_serial0_device);
138        serial_register(&s3c24xx_serial1_device);
139        serial_register(&s3c24xx_serial2_device);
140#endif
141        serial_assign (default_serial_console ()->name);
142}
143
144void serial_devices_init (void)
145{
146        device_t dev;
147        struct serial_device *s = serial_devices;
148
149        while (s) {
150                memset (&dev, 0, sizeof (dev));
151
152                strcpy (dev.name, s->name);
153                dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
154
155                dev.start = s->init;
156                dev.putc = s->putc;
157                dev.puts = s->puts;
158                dev.getc = s->getc;
159                dev.tstc = s->tstc;
160
161                device_register (&dev);
162
163                s = s->next;
164        }
165}
166
167int serial_assign (char *name)
168{
169        struct serial_device *s;
170
171        for (s = serial_devices; s; s = s->next) {
172                if (strcmp (s->name, name) == 0) {
173                        serial_current = s;
174                        return 0;
175                }
176        }
177
178        return 1;
179}
180
181void serial_reinit_all (void)
182{
183        struct serial_device *s;
184
185        for (s = serial_devices; s; s = s->next) {
186                s->init ();
187        }
188}
189
190int serial_init (void)
191{
192        if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
193                struct serial_device *dev = default_serial_console ();
194
195                return dev->init ();
196        }
197
198        return serial_current->init ();
199}
200
201void serial_setbrg (void)
202{
203        if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
204                struct serial_device *dev = default_serial_console ();
205
206                dev->setbrg ();
207                return;
208        }
209
210        serial_current->setbrg ();
211}
212
213int serial_getc (void)
214{
215        if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
216                struct serial_device *dev = default_serial_console ();
217
218                return dev->getc ();
219        }
220
221        return serial_current->getc ();
222}
223
224int serial_tstc (void)
225{
226        if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
227                struct serial_device *dev = default_serial_console ();
228
229                return dev->tstc ();
230        }
231
232        return serial_current->tstc ();
233}
234
235void serial_putc (const char c)
236{
237        if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
238                struct serial_device *dev = default_serial_console ();
239
240                dev->putc (c);
241                return;
242        }
243
244        serial_current->putc (c);
245}
246
247void serial_puts (const char *s)
248{
249        if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
250                struct serial_device *dev = default_serial_console ();
251
252                dev->puts (s);
253                return;
254        }
255
256        serial_current->puts (s);
257}
258
259#endif /* CONFIG_SERIAL_MULTI */
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