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Commit | Line | Data |
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91d3256c | 1 | /* |
3f4978c7 HS |
2 | * Copyright (C) 2009 Sergey Kubushyn <ksi@koi8.net> |
3 | * | |
4 | * Changes for multibus/multiadapter I2C support. | |
5 | * | |
91d3256c WD |
6 | * (C) Copyright 2000 |
7 | * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it | |
8 | * | |
1a459660 | 9 | * SPDX-License-Identifier: GPL-2.0+ |
91d3256c WD |
10 | */ |
11 | ||
12 | #include <config.h> | |
13 | #include <common.h> | |
d97143a6 | 14 | #include <errno.h> |
91d3256c WD |
15 | #include <stdarg.h> |
16 | #include <malloc.h> | |
52cb4d4f | 17 | #include <stdio_dev.h> |
281e00a3 | 18 | #include <serial.h> |
7f6c2cbc WD |
19 | #ifdef CONFIG_LOGBUFFER |
20 | #include <logbuff.h> | |
21 | #endif | |
ea818dbb HS |
22 | |
23 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) | |
91d3256c | 24 | #include <i2c.h> |
7f6c2cbc | 25 | #endif |
91d3256c | 26 | |
d87080b7 WD |
27 | DECLARE_GLOBAL_DATA_PTR; |
28 | ||
52cb4d4f JCPV |
29 | static struct stdio_dev devs; |
30 | struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL }; | |
91d3256c WD |
31 | char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" }; |
32 | ||
6d0f6bcf JCPV |
33 | #if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV) |
34 | #define CONFIG_SYS_DEVICE_NULLDEV 1 | |
d791b1dc WD |
35 | #endif |
36 | ||
32d01926 HG |
37 | #ifdef CONFIG_SYS_STDIO_DEREGISTER |
38 | #define CONFIG_SYS_DEVICE_NULLDEV 1 | |
39 | #endif | |
d791b1dc | 40 | |
6d0f6bcf | 41 | #ifdef CONFIG_SYS_DEVICE_NULLDEV |
654f8d0f | 42 | static void nulldev_putc(struct stdio_dev *dev, const char c) |
91d3256c | 43 | { |
c1de7a6d | 44 | /* nulldev is empty! */ |
91d3256c WD |
45 | } |
46 | ||
654f8d0f | 47 | static void nulldev_puts(struct stdio_dev *dev, const char *s) |
91d3256c | 48 | { |
c1de7a6d | 49 | /* nulldev is empty! */ |
91d3256c WD |
50 | } |
51 | ||
654f8d0f | 52 | static int nulldev_input(struct stdio_dev *dev) |
91d3256c | 53 | { |
c1de7a6d JCPV |
54 | /* nulldev is empty! */ |
55 | return 0; | |
91d3256c WD |
56 | } |
57 | #endif | |
58 | ||
654f8d0f | 59 | static void stdio_serial_putc(struct stdio_dev *dev, const char c) |
709ea543 SG |
60 | { |
61 | serial_putc(c); | |
62 | } | |
63 | ||
654f8d0f | 64 | static void stdio_serial_puts(struct stdio_dev *dev, const char *s) |
709ea543 SG |
65 | { |
66 | serial_puts(s); | |
67 | } | |
68 | ||
654f8d0f | 69 | static int stdio_serial_getc(struct stdio_dev *dev) |
709ea543 SG |
70 | { |
71 | return serial_getc(); | |
72 | } | |
73 | ||
654f8d0f | 74 | static int stdio_serial_tstc(struct stdio_dev *dev) |
709ea543 SG |
75 | { |
76 | return serial_tstc(); | |
77 | } | |
78 | ||
91d3256c WD |
79 | /************************************************************************** |
80 | * SYSTEM DRIVERS | |
81 | ************************************************************************** | |
82 | */ | |
83 | ||
84 | static void drv_system_init (void) | |
85 | { | |
52cb4d4f | 86 | struct stdio_dev dev; |
91d3256c WD |
87 | |
88 | memset (&dev, 0, sizeof (dev)); | |
89 | ||
90 | strcpy (dev.name, "serial"); | |
91 | dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; | |
709ea543 SG |
92 | dev.putc = stdio_serial_putc; |
93 | dev.puts = stdio_serial_puts; | |
94 | dev.getc = stdio_serial_getc; | |
95 | dev.tstc = stdio_serial_tstc; | |
52cb4d4f | 96 | stdio_register (&dev); |
91d3256c | 97 | |
6d0f6bcf | 98 | #ifdef CONFIG_SYS_DEVICE_NULLDEV |
91d3256c WD |
99 | memset (&dev, 0, sizeof (dev)); |
100 | ||
101 | strcpy (dev.name, "nulldev"); | |
102 | dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; | |
103 | dev.putc = nulldev_putc; | |
104 | dev.puts = nulldev_puts; | |
105 | dev.getc = nulldev_input; | |
106 | dev.tstc = nulldev_input; | |
107 | ||
52cb4d4f | 108 | stdio_register (&dev); |
91d3256c WD |
109 | #endif |
110 | } | |
111 | ||
112 | /************************************************************************** | |
113 | * DEVICES | |
114 | ************************************************************************** | |
115 | */ | |
52cb4d4f | 116 | struct list_head* stdio_get_list(void) |
c1de7a6d JCPV |
117 | { |
118 | return &(devs.list); | |
119 | } | |
120 | ||
d7be3056 | 121 | struct stdio_dev* stdio_get_by_name(const char *name) |
c1de7a6d JCPV |
122 | { |
123 | struct list_head *pos; | |
52cb4d4f | 124 | struct stdio_dev *dev; |
c1de7a6d JCPV |
125 | |
126 | if(!name) | |
127 | return NULL; | |
128 | ||
129 | list_for_each(pos, &(devs.list)) { | |
52cb4d4f | 130 | dev = list_entry(pos, struct stdio_dev, list); |
c1de7a6d JCPV |
131 | if(strcmp(dev->name, name) == 0) |
132 | return dev; | |
133 | } | |
134 | ||
135 | return NULL; | |
136 | } | |
137 | ||
52cb4d4f | 138 | struct stdio_dev* stdio_clone(struct stdio_dev *dev) |
628ffd73 | 139 | { |
52cb4d4f | 140 | struct stdio_dev *_dev; |
628ffd73 JCPV |
141 | |
142 | if(!dev) | |
143 | return NULL; | |
144 | ||
52cb4d4f | 145 | _dev = calloc(1, sizeof(struct stdio_dev)); |
628ffd73 JCPV |
146 | |
147 | if(!_dev) | |
148 | return NULL; | |
149 | ||
52cb4d4f | 150 | memcpy(_dev, dev, sizeof(struct stdio_dev)); |
628ffd73 JCPV |
151 | |
152 | return _dev; | |
153 | } | |
91d3256c | 154 | |
d97143a6 | 155 | int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp) |
91d3256c | 156 | { |
52cb4d4f | 157 | struct stdio_dev *_dev; |
628ffd73 | 158 | |
52cb4d4f | 159 | _dev = stdio_clone(dev); |
628ffd73 | 160 | if(!_dev) |
d97143a6 | 161 | return -ENODEV; |
3e3c026e | 162 | list_add_tail(&(_dev->list), &(devs.list)); |
d97143a6 SG |
163 | if (devp) |
164 | *devp = _dev; | |
165 | ||
91d3256c WD |
166 | return 0; |
167 | } | |
168 | ||
d97143a6 SG |
169 | int stdio_register(struct stdio_dev *dev) |
170 | { | |
171 | return stdio_register_dev(dev, NULL); | |
172 | } | |
173 | ||
91d3256c WD |
174 | /* deregister the device "devname". |
175 | * returns 0 if success, -1 if device is assigned and 1 if devname not found | |
176 | */ | |
52cb4d4f | 177 | #ifdef CONFIG_SYS_STDIO_DEREGISTER |
32d01926 | 178 | int stdio_deregister_dev(struct stdio_dev *dev, int force) |
91d3256c | 179 | { |
c1de7a6d JCPV |
180 | int l; |
181 | struct list_head *pos; | |
03bf22f5 | 182 | char temp_names[3][16]; |
91d3256c | 183 | |
91d3256c WD |
184 | /* get stdio devices (ListRemoveItem changes the dev list) */ |
185 | for (l=0 ; l< MAX_FILES; l++) { | |
186 | if (stdio_devices[l] == dev) { | |
32d01926 HG |
187 | if (force) { |
188 | strcpy(temp_names[l], "nulldev"); | |
189 | continue; | |
190 | } | |
91d3256c WD |
191 | /* Device is assigned -> report error */ |
192 | return -1; | |
193 | } | |
194 | memcpy (&temp_names[l][0], | |
195 | stdio_devices[l]->name, | |
03bf22f5 | 196 | sizeof(temp_names[l])); |
91d3256c | 197 | } |
c1de7a6d JCPV |
198 | |
199 | list_del(&(dev->list)); | |
88274b6c | 200 | free(dev); |
c1de7a6d | 201 | |
91d3256c | 202 | /* reassign Device list */ |
c1de7a6d | 203 | list_for_each(pos, &(devs.list)) { |
52cb4d4f | 204 | dev = list_entry(pos, struct stdio_dev, list); |
91d3256c | 205 | for (l=0 ; l< MAX_FILES; l++) { |
c1de7a6d | 206 | if(strcmp(dev->name, temp_names[l]) == 0) |
91d3256c | 207 | stdio_devices[l] = dev; |
91d3256c WD |
208 | } |
209 | } | |
210 | return 0; | |
211 | } | |
d97143a6 | 212 | |
32d01926 | 213 | int stdio_deregister(const char *devname, int force) |
d97143a6 SG |
214 | { |
215 | struct stdio_dev *dev; | |
216 | ||
217 | dev = stdio_get_by_name(devname); | |
218 | ||
219 | if (!dev) /* device not found */ | |
220 | return -ENODEV; | |
221 | ||
32d01926 | 222 | return stdio_deregister_dev(dev, force); |
d97143a6 | 223 | } |
52cb4d4f | 224 | #endif /* CONFIG_SYS_STDIO_DEREGISTER */ |
91d3256c | 225 | |
9fb02491 | 226 | int stdio_init_tables(void) |
91d3256c | 227 | { |
2e5167cc | 228 | #if defined(CONFIG_NEEDS_MANUAL_RELOC) |
521af04d | 229 | /* already relocated for current ARM implementation */ |
91d3256c | 230 | ulong relocation_offset = gd->reloc_off; |
3595ac49 | 231 | int i; |
91d3256c WD |
232 | |
233 | /* relocate device name pointers */ | |
234 | for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) { | |
235 | stdio_names[i] = (char *) (((ulong) stdio_names[i]) + | |
236 | relocation_offset); | |
237 | } | |
2e5167cc | 238 | #endif /* CONFIG_NEEDS_MANUAL_RELOC */ |
91d3256c WD |
239 | |
240 | /* Initialize the list */ | |
c1de7a6d | 241 | INIT_LIST_HEAD(&(devs.list)); |
91d3256c | 242 | |
9fb02491 SG |
243 | return 0; |
244 | } | |
245 | ||
246 | int stdio_add_devices(void) | |
247 | { | |
3f4978c7 | 248 | #ifdef CONFIG_SYS_I2C |
3f4978c7 | 249 | i2c_init_all(); |
3f4978c7 | 250 | #else |
ea818dbb | 251 | #if defined(CONFIG_HARD_I2C) |
6d0f6bcf | 252 | i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
91d3256c | 253 | #endif |
3f4978c7 | 254 | #endif |
91d3256c WD |
255 | #ifdef CONFIG_LCD |
256 | drv_lcd_init (); | |
257 | #endif | |
a6c7ad2f | 258 | #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) |
91d3256c WD |
259 | drv_video_init (); |
260 | #endif | |
682011ff WD |
261 | #ifdef CONFIG_KEYBOARD |
262 | drv_keyboard_init (); | |
56f94be3 WD |
263 | #endif |
264 | #ifdef CONFIG_LOGBUFFER | |
265 | drv_logbuff_init (); | |
91d3256c WD |
266 | #endif |
267 | drv_system_init (); | |
52cb4d4f | 268 | serial_stdio_init (); |
232c150a WD |
269 | #ifdef CONFIG_USB_TTY |
270 | drv_usbtty_init (); | |
271 | #endif | |
68ceb29e WD |
272 | #ifdef CONFIG_NETCONSOLE |
273 | drv_nc_init (); | |
274 | #endif | |
36ea8e9a MF |
275 | #ifdef CONFIG_JTAG_CONSOLE |
276 | drv_jtag_console_init (); | |
277 | #endif | |
98ab435f VB |
278 | #ifdef CONFIG_CBMEM_CONSOLE |
279 | cbmemc_init(); | |
280 | #endif | |
9fb02491 SG |
281 | |
282 | return 0; | |
283 | } | |
284 | ||
285 | int stdio_init(void) | |
286 | { | |
287 | stdio_init_tables(); | |
288 | stdio_add_devices(); | |
289 | ||
290 | return 0; | |
91d3256c | 291 | } |