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91d3256c WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it | |
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 <config.h> | |
25 | #include <common.h> | |
26 | #include <stdarg.h> | |
27 | #include <malloc.h> | |
52cb4d4f | 28 | #include <stdio_dev.h> |
281e00a3 | 29 | #include <serial.h> |
7f6c2cbc WD |
30 | #ifdef CONFIG_LOGBUFFER |
31 | #include <logbuff.h> | |
32 | #endif | |
33 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) | |
91d3256c | 34 | #include <i2c.h> |
7f6c2cbc | 35 | #endif |
91d3256c | 36 | |
d87080b7 WD |
37 | DECLARE_GLOBAL_DATA_PTR; |
38 | ||
52cb4d4f JCPV |
39 | static struct stdio_dev devs; |
40 | struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL }; | |
91d3256c WD |
41 | char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" }; |
42 | ||
6d0f6bcf JCPV |
43 | #if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV) |
44 | #define CONFIG_SYS_DEVICE_NULLDEV 1 | |
d791b1dc WD |
45 | #endif |
46 | ||
47 | ||
6d0f6bcf | 48 | #ifdef CONFIG_SYS_DEVICE_NULLDEV |
91d3256c WD |
49 | void nulldev_putc(const char c) |
50 | { | |
c1de7a6d | 51 | /* nulldev is empty! */ |
91d3256c WD |
52 | } |
53 | ||
54 | void nulldev_puts(const char *s) | |
55 | { | |
c1de7a6d | 56 | /* nulldev is empty! */ |
91d3256c WD |
57 | } |
58 | ||
59 | int nulldev_input(void) | |
60 | { | |
c1de7a6d JCPV |
61 | /* nulldev is empty! */ |
62 | return 0; | |
91d3256c WD |
63 | } |
64 | #endif | |
65 | ||
66 | /************************************************************************** | |
67 | * SYSTEM DRIVERS | |
68 | ************************************************************************** | |
69 | */ | |
70 | ||
71 | static void drv_system_init (void) | |
72 | { | |
52cb4d4f | 73 | struct stdio_dev dev; |
91d3256c WD |
74 | |
75 | memset (&dev, 0, sizeof (dev)); | |
76 | ||
77 | strcpy (dev.name, "serial"); | |
78 | dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; | |
91d3256c WD |
79 | dev.putc = serial_putc; |
80 | dev.puts = serial_puts; | |
81 | dev.getc = serial_getc; | |
82 | dev.tstc = serial_tstc; | |
52cb4d4f | 83 | stdio_register (&dev); |
91d3256c | 84 | |
6d0f6bcf | 85 | #ifdef CONFIG_SYS_DEVICE_NULLDEV |
91d3256c WD |
86 | memset (&dev, 0, sizeof (dev)); |
87 | ||
88 | strcpy (dev.name, "nulldev"); | |
89 | dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; | |
90 | dev.putc = nulldev_putc; | |
91 | dev.puts = nulldev_puts; | |
92 | dev.getc = nulldev_input; | |
93 | dev.tstc = nulldev_input; | |
94 | ||
52cb4d4f | 95 | stdio_register (&dev); |
91d3256c WD |
96 | #endif |
97 | } | |
98 | ||
99 | /************************************************************************** | |
100 | * DEVICES | |
101 | ************************************************************************** | |
102 | */ | |
52cb4d4f | 103 | struct list_head* stdio_get_list(void) |
c1de7a6d JCPV |
104 | { |
105 | return &(devs.list); | |
106 | } | |
107 | ||
d7be3056 | 108 | struct stdio_dev* stdio_get_by_name(const char *name) |
c1de7a6d JCPV |
109 | { |
110 | struct list_head *pos; | |
52cb4d4f | 111 | struct stdio_dev *dev; |
c1de7a6d JCPV |
112 | |
113 | if(!name) | |
114 | return NULL; | |
115 | ||
116 | list_for_each(pos, &(devs.list)) { | |
52cb4d4f | 117 | dev = list_entry(pos, struct stdio_dev, list); |
c1de7a6d JCPV |
118 | if(strcmp(dev->name, name) == 0) |
119 | return dev; | |
120 | } | |
121 | ||
122 | return NULL; | |
123 | } | |
124 | ||
52cb4d4f | 125 | struct stdio_dev* stdio_clone(struct stdio_dev *dev) |
628ffd73 | 126 | { |
52cb4d4f | 127 | struct stdio_dev *_dev; |
628ffd73 JCPV |
128 | |
129 | if(!dev) | |
130 | return NULL; | |
131 | ||
52cb4d4f | 132 | _dev = calloc(1, sizeof(struct stdio_dev)); |
628ffd73 JCPV |
133 | |
134 | if(!_dev) | |
135 | return NULL; | |
136 | ||
52cb4d4f | 137 | memcpy(_dev, dev, sizeof(struct stdio_dev)); |
628ffd73 JCPV |
138 | strncpy(_dev->name, dev->name, 16); |
139 | ||
140 | return _dev; | |
141 | } | |
91d3256c | 142 | |
52cb4d4f | 143 | int stdio_register (struct stdio_dev * dev) |
91d3256c | 144 | { |
52cb4d4f | 145 | struct stdio_dev *_dev; |
628ffd73 | 146 | |
52cb4d4f | 147 | _dev = stdio_clone(dev); |
628ffd73 JCPV |
148 | if(!_dev) |
149 | return -1; | |
3e3c026e | 150 | list_add_tail(&(_dev->list), &(devs.list)); |
91d3256c WD |
151 | return 0; |
152 | } | |
153 | ||
154 | /* deregister the device "devname". | |
155 | * returns 0 if success, -1 if device is assigned and 1 if devname not found | |
156 | */ | |
52cb4d4f | 157 | #ifdef CONFIG_SYS_STDIO_DEREGISTER |
d7be3056 | 158 | int stdio_deregister(const char *devname) |
91d3256c | 159 | { |
c1de7a6d JCPV |
160 | int l; |
161 | struct list_head *pos; | |
52cb4d4f | 162 | struct stdio_dev *dev; |
91d3256c WD |
163 | char temp_names[3][8]; |
164 | ||
52cb4d4f | 165 | dev = stdio_get_by_name(devname); |
c1de7a6d JCPV |
166 | |
167 | if(!dev) /* device not found */ | |
168 | return -1; | |
91d3256c WD |
169 | /* get stdio devices (ListRemoveItem changes the dev list) */ |
170 | for (l=0 ; l< MAX_FILES; l++) { | |
171 | if (stdio_devices[l] == dev) { | |
172 | /* Device is assigned -> report error */ | |
173 | return -1; | |
174 | } | |
175 | memcpy (&temp_names[l][0], | |
176 | stdio_devices[l]->name, | |
177 | sizeof(stdio_devices[l]->name)); | |
178 | } | |
c1de7a6d JCPV |
179 | |
180 | list_del(&(dev->list)); | |
181 | ||
91d3256c | 182 | /* reassign Device list */ |
c1de7a6d | 183 | list_for_each(pos, &(devs.list)) { |
52cb4d4f | 184 | dev = list_entry(pos, struct stdio_dev, list); |
91d3256c | 185 | for (l=0 ; l< MAX_FILES; l++) { |
c1de7a6d | 186 | if(strcmp(dev->name, temp_names[l]) == 0) |
91d3256c | 187 | stdio_devices[l] = dev; |
91d3256c WD |
188 | } |
189 | } | |
190 | return 0; | |
191 | } | |
52cb4d4f | 192 | #endif /* CONFIG_SYS_STDIO_DEREGISTER */ |
91d3256c | 193 | |
52cb4d4f | 194 | int stdio_init (void) |
91d3256c | 195 | { |
2e5167cc | 196 | #if defined(CONFIG_NEEDS_MANUAL_RELOC) |
521af04d | 197 | /* already relocated for current ARM implementation */ |
91d3256c | 198 | ulong relocation_offset = gd->reloc_off; |
3595ac49 | 199 | int i; |
91d3256c WD |
200 | |
201 | /* relocate device name pointers */ | |
202 | for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) { | |
203 | stdio_names[i] = (char *) (((ulong) stdio_names[i]) + | |
204 | relocation_offset); | |
205 | } | |
2e5167cc | 206 | #endif /* CONFIG_NEEDS_MANUAL_RELOC */ |
91d3256c WD |
207 | |
208 | /* Initialize the list */ | |
c1de7a6d | 209 | INIT_LIST_HEAD(&(devs.list)); |
91d3256c | 210 | |
4f572898 JCPV |
211 | #ifdef CONFIG_ARM_DCC_MULTI |
212 | drv_arm_dcc_init (); | |
213 | #endif | |
91d3256c | 214 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
6d0f6bcf | 215 | i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
91d3256c WD |
216 | #endif |
217 | #ifdef CONFIG_LCD | |
218 | drv_lcd_init (); | |
219 | #endif | |
a6c7ad2f | 220 | #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) |
91d3256c WD |
221 | drv_video_init (); |
222 | #endif | |
682011ff WD |
223 | #ifdef CONFIG_KEYBOARD |
224 | drv_keyboard_init (); | |
56f94be3 WD |
225 | #endif |
226 | #ifdef CONFIG_LOGBUFFER | |
227 | drv_logbuff_init (); | |
91d3256c WD |
228 | #endif |
229 | drv_system_init (); | |
281e00a3 | 230 | #ifdef CONFIG_SERIAL_MULTI |
52cb4d4f | 231 | serial_stdio_init (); |
281e00a3 | 232 | #endif |
232c150a WD |
233 | #ifdef CONFIG_USB_TTY |
234 | drv_usbtty_init (); | |
235 | #endif | |
68ceb29e WD |
236 | #ifdef CONFIG_NETCONSOLE |
237 | drv_nc_init (); | |
238 | #endif | |
36ea8e9a MF |
239 | #ifdef CONFIG_JTAG_CONSOLE |
240 | drv_jtag_console_init (); | |
241 | #endif | |
91d3256c | 242 | |
91d3256c WD |
243 | return (0); |
244 | } |