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281e00a3 WD |
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 | ||
d87080b7 WD |
28 | DECLARE_GLOBAL_DATA_PTR; |
29 | ||
281e00a3 WD |
30 | #if defined(CONFIG_SERIAL_MULTI) |
31 | ||
32 | static struct serial_device *serial_devices = NULL; | |
33 | static struct serial_device *serial_current = NULL; | |
34 | ||
35 | #ifndef CONFIG_LWMON | |
2ee66533 | 36 | struct serial_device *default_serial_console (void) |
281e00a3 WD |
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; | |
ff36fd85 | 43 | #elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \ |
c12cffc5 | 44 | || defined(CONFIG_405EP) || defined(CONFIG_MPC5xxx) |
0fd30252 WD |
45 | #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) | |
6c5879f3 MB |
58 | return &serial1_device; |
59 | #else | |
60 | return &serial0_device; | |
61 | #endif | |
281e00a3 WD |
62 | #else |
63 | #error No default console | |
64 | #endif | |
65 | } | |
66 | #endif | |
67 | ||
2ee66533 | 68 | static int serial_register (struct serial_device *dev) |
281e00a3 | 69 | { |
281e00a3 WD |
70 | 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 | ||
2ee66533 | 83 | void serial_initialize (void) |
281e00a3 WD |
84 | { |
85 | #if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2) | |
2ee66533 | 86 | serial_register (&serial_smc_device); |
281e00a3 WD |
87 | #endif |
88 | #if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \ | |
89 | || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4) | |
2ee66533 | 90 | serial_register (&serial_scc_device); |
281e00a3 WD |
91 | #endif |
92 | ||
ff36fd85 | 93 | #if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \ |
c12cffc5 | 94 | || defined(CONFIG_405EP) || defined(CONFIG_MPC5xxx) |
ff36fd85 WD |
95 | serial_register(&serial0_device); |
96 | serial_register(&serial1_device); | |
97 | #endif | |
98 | ||
0fd30252 WD |
99 | #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 */ | |
2ee66533 | 113 | serial_assign (default_serial_console ()->name); |
281e00a3 WD |
114 | } |
115 | ||
2ee66533 | 116 | void serial_devices_init (void) |
281e00a3 WD |
117 | { |
118 | device_t dev; | |
119 | struct serial_device *s = serial_devices; | |
120 | ||
2ee66533 | 121 | while (s) { |
281e00a3 WD |
122 | 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 | ||
2ee66533 | 139 | int serial_assign (char *name) |
281e00a3 WD |
140 | { |
141 | struct serial_device *s; | |
142 | ||
2ee66533 WD |
143 | for (s = serial_devices; s; s = s->next) { |
144 | if (strcmp (s->name, name) == 0) { | |
281e00a3 WD |
145 | serial_current = s; |
146 | return 0; | |
147 | } | |
148 | } | |
149 | ||
150 | return 1; | |
151 | } | |
152 | ||
2ee66533 | 153 | void serial_reinit_all (void) |
281e00a3 WD |
154 | { |
155 | struct serial_device *s; | |
156 | ||
2ee66533 WD |
157 | for (s = serial_devices; s; s = s->next) { |
158 | s->init (); | |
281e00a3 WD |
159 | } |
160 | } | |
161 | ||
2ee66533 | 162 | int serial_init (void) |
281e00a3 | 163 | { |
2ee66533 WD |
164 | if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { |
165 | struct serial_device *dev = default_serial_console (); | |
166 | ||
167 | return dev->init (); | |
281e00a3 WD |
168 | } |
169 | ||
2ee66533 | 170 | return serial_current->init (); |
281e00a3 WD |
171 | } |
172 | ||
2ee66533 | 173 | void serial_setbrg (void) |
281e00a3 | 174 | { |
2ee66533 WD |
175 | if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { |
176 | struct serial_device *dev = default_serial_console (); | |
177 | ||
178 | dev->setbrg (); | |
281e00a3 WD |
179 | return; |
180 | } | |
181 | ||
2ee66533 | 182 | serial_current->setbrg (); |
281e00a3 WD |
183 | } |
184 | ||
2ee66533 | 185 | int serial_getc (void) |
281e00a3 | 186 | { |
2ee66533 WD |
187 | if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { |
188 | struct serial_device *dev = default_serial_console (); | |
189 | ||
190 | return dev->getc (); | |
281e00a3 WD |
191 | } |
192 | ||
2ee66533 | 193 | return serial_current->getc (); |
281e00a3 WD |
194 | } |
195 | ||
2ee66533 | 196 | int serial_tstc (void) |
281e00a3 | 197 | { |
2ee66533 WD |
198 | if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { |
199 | struct serial_device *dev = default_serial_console (); | |
200 | ||
201 | return dev->tstc (); | |
281e00a3 WD |
202 | } |
203 | ||
2ee66533 | 204 | return serial_current->tstc (); |
281e00a3 WD |
205 | } |
206 | ||
2ee66533 | 207 | void serial_putc (const char c) |
281e00a3 | 208 | { |
2ee66533 WD |
209 | if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { |
210 | struct serial_device *dev = default_serial_console (); | |
211 | ||
212 | dev->putc (c); | |
281e00a3 WD |
213 | return; |
214 | } | |
215 | ||
2ee66533 | 216 | serial_current->putc (c); |
281e00a3 WD |
217 | } |
218 | ||
2ee66533 | 219 | void serial_puts (const char *s) |
281e00a3 | 220 | { |
2ee66533 WD |
221 | if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { |
222 | struct serial_device *dev = default_serial_console (); | |
223 | ||
224 | dev->puts (s); | |
281e00a3 WD |
225 | return; |
226 | } | |
227 | ||
2ee66533 | 228 | serial_current->puts (s); |
281e00a3 WD |
229 | } |
230 | ||
231 | #endif /* CONFIG_SERIAL_MULTI */ |