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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
stefano babic80172c62007-08-30 22:57:04 +020035#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
Matthias Fuchs1208a2d2007-12-27 16:57:23 +010036struct 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) \
Stefan Roesedbbd1252007-10-05 17:10:59 +020044 || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
45 || defined(CONFIG_MPC5xxx)
Wolfgang Denk0fd30252006-08-30 23:02:10 +020046#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)
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020059 return &serial1_device;
60#else
61 return &serial0_device;
62#endif
wdenk281e00a2004-08-01 22:48:16 +000063#else
64#error No default console
65#endif
66}
Matthias Fuchs1208a2d2007-12-27 16:57:23 +010067
68struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
wdenk281e00a2004-08-01 22:48:16 +000069#endif
70
stefano babic80172c62007-08-30 22:57:04 +020071int serial_register (struct serial_device *dev)
wdenk281e00a2004-08-01 22:48:16 +000072{
wdenk281e00a2004-08-01 22:48:16 +000073 dev->init += gd->reloc_off;
74 dev->setbrg += gd->reloc_off;
75 dev->getc += gd->reloc_off;
76 dev->tstc += gd->reloc_off;
77 dev->putc += gd->reloc_off;
78 dev->puts += gd->reloc_off;
79
80 dev->next = serial_devices;
81 serial_devices = dev;
82
83 return 0;
84}
85
wdenk2ee66532004-10-11 22:43:02 +000086void serial_initialize (void)
wdenk281e00a2004-08-01 22:48:16 +000087{
88#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
wdenk2ee66532004-10-11 22:43:02 +000089 serial_register (&serial_smc_device);
wdenk281e00a2004-08-01 22:48:16 +000090#endif
91#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
92 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
wdenk2ee66532004-10-11 22:43:02 +000093 serial_register (&serial_scc_device);
wdenk281e00a2004-08-01 22:48:16 +000094#endif
95
wdenkff36fd82005-01-09 22:28:56 +000096#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
Stefan Roesedbbd1252007-10-05 17:10:59 +020097 || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
98 || defined(CONFIG_MPC5xxx)
wdenkff36fd82005-01-09 22:28:56 +000099 serial_register(&serial0_device);
100 serial_register(&serial1_device);
101#endif
102
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200103#if defined(CFG_NS16550_SERIAL)
104#if defined(CFG_NS16550_COM1)
105 serial_register(&eserial1_device);
106#endif
107#if defined(CFG_NS16550_COM2)
108 serial_register(&eserial2_device);
109#endif
110#if defined(CFG_NS16550_COM3)
111 serial_register(&eserial3_device);
112#endif
113#if defined(CFG_NS16550_COM4)
114 serial_register(&eserial4_device);
115#endif
116#endif /* CFG_NS16550_SERIAL */
stefano babic80172c62007-08-30 22:57:04 +0200117#if defined (CONFIG_FFUART)
118 serial_register(&serial_ffuart_device);
119#endif
120#if defined (CONFIG_BTUART)
121 serial_register(&serial_btuart_device);
122#endif
123#if defined (CONFIG_STUART)
124 serial_register(&serial_stuart_device);
125#endif
wdenk2ee66532004-10-11 22:43:02 +0000126 serial_assign (default_serial_console ()->name);
wdenk281e00a2004-08-01 22:48:16 +0000127}
128
wdenk2ee66532004-10-11 22:43:02 +0000129void serial_devices_init (void)
wdenk281e00a2004-08-01 22:48:16 +0000130{
131 device_t dev;
132 struct serial_device *s = serial_devices;
133
wdenk2ee66532004-10-11 22:43:02 +0000134 while (s) {
wdenk281e00a2004-08-01 22:48:16 +0000135 memset (&dev, 0, sizeof (dev));
136
137 strcpy (dev.name, s->name);
138 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
139
140 dev.start = s->init;
141 dev.putc = s->putc;
142 dev.puts = s->puts;
143 dev.getc = s->getc;
144 dev.tstc = s->tstc;
145
146 device_register (&dev);
147
148 s = s->next;
149 }
150}
151
wdenk2ee66532004-10-11 22:43:02 +0000152int serial_assign (char *name)
wdenk281e00a2004-08-01 22:48:16 +0000153{
154 struct serial_device *s;
155
wdenk2ee66532004-10-11 22:43:02 +0000156 for (s = serial_devices; s; s = s->next) {
157 if (strcmp (s->name, name) == 0) {
wdenk281e00a2004-08-01 22:48:16 +0000158 serial_current = s;
159 return 0;
160 }
161 }
162
163 return 1;
164}
165
wdenk2ee66532004-10-11 22:43:02 +0000166void serial_reinit_all (void)
wdenk281e00a2004-08-01 22:48:16 +0000167{
168 struct serial_device *s;
169
wdenk2ee66532004-10-11 22:43:02 +0000170 for (s = serial_devices; s; s = s->next) {
171 s->init ();
wdenk281e00a2004-08-01 22:48:16 +0000172 }
173}
174
wdenk2ee66532004-10-11 22:43:02 +0000175int serial_init (void)
wdenk281e00a2004-08-01 22:48:16 +0000176{
wdenk2ee66532004-10-11 22:43:02 +0000177 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
178 struct serial_device *dev = default_serial_console ();
179
180 return dev->init ();
wdenk281e00a2004-08-01 22:48:16 +0000181 }
182
wdenk2ee66532004-10-11 22:43:02 +0000183 return serial_current->init ();
wdenk281e00a2004-08-01 22:48:16 +0000184}
185
wdenk2ee66532004-10-11 22:43:02 +0000186void serial_setbrg (void)
wdenk281e00a2004-08-01 22:48:16 +0000187{
wdenk2ee66532004-10-11 22:43:02 +0000188 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
189 struct serial_device *dev = default_serial_console ();
190
191 dev->setbrg ();
wdenk281e00a2004-08-01 22:48:16 +0000192 return;
193 }
194
wdenk2ee66532004-10-11 22:43:02 +0000195 serial_current->setbrg ();
wdenk281e00a2004-08-01 22:48:16 +0000196}
197
wdenk2ee66532004-10-11 22:43:02 +0000198int serial_getc (void)
wdenk281e00a2004-08-01 22:48:16 +0000199{
wdenk2ee66532004-10-11 22:43:02 +0000200 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
201 struct serial_device *dev = default_serial_console ();
202
203 return dev->getc ();
wdenk281e00a2004-08-01 22:48:16 +0000204 }
205
wdenk2ee66532004-10-11 22:43:02 +0000206 return serial_current->getc ();
wdenk281e00a2004-08-01 22:48:16 +0000207}
208
wdenk2ee66532004-10-11 22:43:02 +0000209int serial_tstc (void)
wdenk281e00a2004-08-01 22:48:16 +0000210{
wdenk2ee66532004-10-11 22:43:02 +0000211 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
212 struct serial_device *dev = default_serial_console ();
213
214 return dev->tstc ();
wdenk281e00a2004-08-01 22:48:16 +0000215 }
216
wdenk2ee66532004-10-11 22:43:02 +0000217 return serial_current->tstc ();
wdenk281e00a2004-08-01 22:48:16 +0000218}
219
wdenk2ee66532004-10-11 22:43:02 +0000220void serial_putc (const char c)
wdenk281e00a2004-08-01 22:48:16 +0000221{
wdenk2ee66532004-10-11 22:43:02 +0000222 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
223 struct serial_device *dev = default_serial_console ();
224
225 dev->putc (c);
wdenk281e00a2004-08-01 22:48:16 +0000226 return;
227 }
228
wdenk2ee66532004-10-11 22:43:02 +0000229 serial_current->putc (c);
wdenk281e00a2004-08-01 22:48:16 +0000230}
231
wdenk2ee66532004-10-11 22:43:02 +0000232void serial_puts (const char *s)
wdenk281e00a2004-08-01 22:48:16 +0000233{
wdenk2ee66532004-10-11 22:43:02 +0000234 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
235 struct serial_device *dev = default_serial_console ();
236
237 dev->puts (s);
wdenk281e00a2004-08-01 22:48:16 +0000238 return;
239 }
240
wdenk2ee66532004-10-11 22:43:02 +0000241 serial_current->puts (s);
wdenk281e00a2004-08-01 22:48:16 +0000242}
243
244#endif /* CONFIG_SERIAL_MULTI */