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wdenk281e00a2004-08-01 22:48:16 +00001/*
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
Wolfgang Denkd87080b2006-03-31 18:32:53 +020028DECLARE_GLOBAL_DATA_PTR;
29
wdenk281e00a2004-08-01 22:48:16 +000030#if defined(CONFIG_SERIAL_MULTI)
31
32static struct serial_device *serial_devices = NULL;
33static struct serial_device *serial_current = NULL;
34
35#ifndef CONFIG_LWMON
wdenk2ee66532004-10-11 22:43:02 +000036struct serial_device *default_serial_console (void)
wdenk281e00a2004-08-01 22:48:16 +000037{
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;
wdenkff36fd82005-01-09 22:28:56 +000043#elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
Wolfgang Denkc12cffc2006-06-16 17:04:45 +020044 || defined(CONFIG_405EP) || defined(CONFIG_MPC5xxx)
Wolfgang Denk0fd30252006-08-30 23:02:10 +020045#if defined(CONFIG_CONS_INDEX) && defined(CFG_NS16550_SERIAL)
46#if (CONFIG_CONS_INDEX==1)
47 return &eserial1_device;
48#elif (CONFIG_CONS_INDEX==2)
49 return &eserial2_device;
50#elif (CONFIG_CONS_INDEX==3)
51 return &eserial3_device;
52#elif (CONFIG_CONS_INDEX==4)
53 return &eserial4_device;
54#else
55#error "Bad CONFIG_CONS_INDEX."
56#endif
57#elif defined(CONFIG_UART1_CONSOLE)
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020058 return &serial1_device;
59#else
60 return &serial0_device;
61#endif
wdenk281e00a2004-08-01 22:48:16 +000062#else
63#error No default console
64#endif
65}
66#endif
67
wdenk2ee66532004-10-11 22:43:02 +000068static int serial_register (struct serial_device *dev)
wdenk281e00a2004-08-01 22:48:16 +000069{
wdenk281e00a2004-08-01 22:48:16 +000070 dev->init += gd->reloc_off;
71 dev->setbrg += gd->reloc_off;
72 dev->getc += gd->reloc_off;
73 dev->tstc += gd->reloc_off;
74 dev->putc += gd->reloc_off;
75 dev->puts += gd->reloc_off;
76
77 dev->next = serial_devices;
78 serial_devices = dev;
79
80 return 0;
81}
82
wdenk2ee66532004-10-11 22:43:02 +000083void serial_initialize (void)
wdenk281e00a2004-08-01 22:48:16 +000084{
85#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
wdenk2ee66532004-10-11 22:43:02 +000086 serial_register (&serial_smc_device);
wdenk281e00a2004-08-01 22:48:16 +000087#endif
88#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
89 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
wdenk2ee66532004-10-11 22:43:02 +000090 serial_register (&serial_scc_device);
wdenk281e00a2004-08-01 22:48:16 +000091#endif
92
wdenkff36fd82005-01-09 22:28:56 +000093#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
Wolfgang Denkc12cffc2006-06-16 17:04:45 +020094 || defined(CONFIG_405EP) || defined(CONFIG_MPC5xxx)
wdenkff36fd82005-01-09 22:28:56 +000095 serial_register(&serial0_device);
96 serial_register(&serial1_device);
97#endif
98
Wolfgang Denk0fd30252006-08-30 23:02:10 +020099#if defined(CFG_NS16550_SERIAL)
100#if defined(CFG_NS16550_COM1)
101 serial_register(&eserial1_device);
102#endif
103#if defined(CFG_NS16550_COM2)
104 serial_register(&eserial2_device);
105#endif
106#if defined(CFG_NS16550_COM3)
107 serial_register(&eserial3_device);
108#endif
109#if defined(CFG_NS16550_COM4)
110 serial_register(&eserial4_device);
111#endif
112#endif /* CFG_NS16550_SERIAL */
wdenk2ee66532004-10-11 22:43:02 +0000113 serial_assign (default_serial_console ()->name);
wdenk281e00a2004-08-01 22:48:16 +0000114}
115
wdenk2ee66532004-10-11 22:43:02 +0000116void serial_devices_init (void)
wdenk281e00a2004-08-01 22:48:16 +0000117{
118 device_t dev;
119 struct serial_device *s = serial_devices;
120
wdenk2ee66532004-10-11 22:43:02 +0000121 while (s) {
wdenk281e00a2004-08-01 22:48:16 +0000122 memset (&dev, 0, sizeof (dev));
123
124 strcpy (dev.name, s->name);
125 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
126
127 dev.start = s->init;
128 dev.putc = s->putc;
129 dev.puts = s->puts;
130 dev.getc = s->getc;
131 dev.tstc = s->tstc;
132
133 device_register (&dev);
134
135 s = s->next;
136 }
137}
138
wdenk2ee66532004-10-11 22:43:02 +0000139int serial_assign (char *name)
wdenk281e00a2004-08-01 22:48:16 +0000140{
141 struct serial_device *s;
142
wdenk2ee66532004-10-11 22:43:02 +0000143 for (s = serial_devices; s; s = s->next) {
144 if (strcmp (s->name, name) == 0) {
wdenk281e00a2004-08-01 22:48:16 +0000145 serial_current = s;
146 return 0;
147 }
148 }
149
150 return 1;
151}
152
wdenk2ee66532004-10-11 22:43:02 +0000153void serial_reinit_all (void)
wdenk281e00a2004-08-01 22:48:16 +0000154{
155 struct serial_device *s;
156
wdenk2ee66532004-10-11 22:43:02 +0000157 for (s = serial_devices; s; s = s->next) {
158 s->init ();
wdenk281e00a2004-08-01 22:48:16 +0000159 }
160}
161
wdenk2ee66532004-10-11 22:43:02 +0000162int serial_init (void)
wdenk281e00a2004-08-01 22:48:16 +0000163{
wdenk2ee66532004-10-11 22:43:02 +0000164 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
165 struct serial_device *dev = default_serial_console ();
166
167 return dev->init ();
wdenk281e00a2004-08-01 22:48:16 +0000168 }
169
wdenk2ee66532004-10-11 22:43:02 +0000170 return serial_current->init ();
wdenk281e00a2004-08-01 22:48:16 +0000171}
172
wdenk2ee66532004-10-11 22:43:02 +0000173void serial_setbrg (void)
wdenk281e00a2004-08-01 22:48:16 +0000174{
wdenk2ee66532004-10-11 22:43:02 +0000175 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
176 struct serial_device *dev = default_serial_console ();
177
178 dev->setbrg ();
wdenk281e00a2004-08-01 22:48:16 +0000179 return;
180 }
181
wdenk2ee66532004-10-11 22:43:02 +0000182 serial_current->setbrg ();
wdenk281e00a2004-08-01 22:48:16 +0000183}
184
wdenk2ee66532004-10-11 22:43:02 +0000185int serial_getc (void)
wdenk281e00a2004-08-01 22:48:16 +0000186{
wdenk2ee66532004-10-11 22:43:02 +0000187 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
188 struct serial_device *dev = default_serial_console ();
189
190 return dev->getc ();
wdenk281e00a2004-08-01 22:48:16 +0000191 }
192
wdenk2ee66532004-10-11 22:43:02 +0000193 return serial_current->getc ();
wdenk281e00a2004-08-01 22:48:16 +0000194}
195
wdenk2ee66532004-10-11 22:43:02 +0000196int serial_tstc (void)
wdenk281e00a2004-08-01 22:48:16 +0000197{
wdenk2ee66532004-10-11 22:43:02 +0000198 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
199 struct serial_device *dev = default_serial_console ();
200
201 return dev->tstc ();
wdenk281e00a2004-08-01 22:48:16 +0000202 }
203
wdenk2ee66532004-10-11 22:43:02 +0000204 return serial_current->tstc ();
wdenk281e00a2004-08-01 22:48:16 +0000205}
206
wdenk2ee66532004-10-11 22:43:02 +0000207void serial_putc (const char c)
wdenk281e00a2004-08-01 22:48:16 +0000208{
wdenk2ee66532004-10-11 22:43:02 +0000209 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
210 struct serial_device *dev = default_serial_console ();
211
212 dev->putc (c);
wdenk281e00a2004-08-01 22:48:16 +0000213 return;
214 }
215
wdenk2ee66532004-10-11 22:43:02 +0000216 serial_current->putc (c);
wdenk281e00a2004-08-01 22:48:16 +0000217}
218
wdenk2ee66532004-10-11 22:43:02 +0000219void serial_puts (const char *s)
wdenk281e00a2004-08-01 22:48:16 +0000220{
wdenk2ee66532004-10-11 22:43:02 +0000221 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
222 struct serial_device *dev = default_serial_console ();
223
224 dev->puts (s);
wdenk281e00a2004-08-01 22:48:16 +0000225 return;
226 }
227
wdenk2ee66532004-10-11 22:43:02 +0000228 serial_current->puts (s);
wdenk281e00a2004-08-01 22:48:16 +0000229}
230
231#endif /* CONFIG_SERIAL_MULTI */