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wdenk91d32562002-09-18 21:21:13 +00001/*
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>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020028#include <stdio_dev.h>
wdenk281e00a2004-08-01 22:48:16 +000029#include <serial.h>
wdenk7f6c2cb2002-11-10 22:06:23 +000030#ifdef CONFIG_LOGBUFFER
31#include <logbuff.h>
32#endif
33#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
wdenk91d32562002-09-18 21:21:13 +000034#include <i2c.h>
wdenk7f6c2cb2002-11-10 22:06:23 +000035#endif
wdenk91d32562002-09-18 21:21:13 +000036
Wolfgang Denkd87080b2006-03-31 18:32:53 +020037DECLARE_GLOBAL_DATA_PTR;
38
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020039static struct stdio_dev devs;
40struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL };
wdenk91d32562002-09-18 21:21:13 +000041char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
42
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020043#if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV)
44#define CONFIG_SYS_DEVICE_NULLDEV 1
wdenkd791b1d2003-04-20 14:04:18 +000045#endif
46
47
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020048#ifdef CONFIG_SYS_DEVICE_NULLDEV
wdenk91d32562002-09-18 21:21:13 +000049void nulldev_putc(const char c)
50{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +020051 /* nulldev is empty! */
wdenk91d32562002-09-18 21:21:13 +000052}
53
54void nulldev_puts(const char *s)
55{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +020056 /* nulldev is empty! */
wdenk91d32562002-09-18 21:21:13 +000057}
58
59int nulldev_input(void)
60{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +020061 /* nulldev is empty! */
62 return 0;
wdenk91d32562002-09-18 21:21:13 +000063}
64#endif
65
66/**************************************************************************
67 * SYSTEM DRIVERS
68 **************************************************************************
69 */
70
71static void drv_system_init (void)
72{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020073 struct stdio_dev dev;
wdenk91d32562002-09-18 21:21:13 +000074
75 memset (&dev, 0, sizeof (dev));
76
77 strcpy (dev.name, "serial");
78 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
wdenk91d32562002-09-18 21:21:13 +000079 dev.putc = serial_putc;
80 dev.puts = serial_puts;
81 dev.getc = serial_getc;
82 dev.tstc = serial_tstc;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020083 stdio_register (&dev);
wdenk91d32562002-09-18 21:21:13 +000084
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020085#ifdef CONFIG_SYS_DEVICE_NULLDEV
wdenk91d32562002-09-18 21:21:13 +000086 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
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020095 stdio_register (&dev);
wdenk91d32562002-09-18 21:21:13 +000096#endif
97}
98
99/**************************************************************************
100 * DEVICES
101 **************************************************************************
102 */
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200103struct list_head* stdio_get_list(void)
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200104{
105 return &(devs.list);
106}
107
Mike Frysingerd7be3052010-10-20 07:18:03 -0400108struct stdio_dev* stdio_get_by_name(const char *name)
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200109{
110 struct list_head *pos;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200111 struct stdio_dev *dev;
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200112
113 if(!name)
114 return NULL;
115
116 list_for_each(pos, &(devs.list)) {
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200117 dev = list_entry(pos, struct stdio_dev, list);
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200118 if(strcmp(dev->name, name) == 0)
119 return dev;
120 }
121
122 return NULL;
123}
124
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200125struct stdio_dev* stdio_clone(struct stdio_dev *dev)
Jean-Christophe PLAGNIOL-VILLARD628ffd72008-09-01 17:11:26 +0200126{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200127 struct stdio_dev *_dev;
Jean-Christophe PLAGNIOL-VILLARD628ffd72008-09-01 17:11:26 +0200128
129 if(!dev)
130 return NULL;
131
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200132 _dev = calloc(1, sizeof(struct stdio_dev));
Jean-Christophe PLAGNIOL-VILLARD628ffd72008-09-01 17:11:26 +0200133
134 if(!_dev)
135 return NULL;
136
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200137 memcpy(_dev, dev, sizeof(struct stdio_dev));
Jean-Christophe PLAGNIOL-VILLARD628ffd72008-09-01 17:11:26 +0200138
139 return _dev;
140}
wdenk91d32562002-09-18 21:21:13 +0000141
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200142int stdio_register (struct stdio_dev * dev)
wdenk91d32562002-09-18 21:21:13 +0000143{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200144 struct stdio_dev *_dev;
Jean-Christophe PLAGNIOL-VILLARD628ffd72008-09-01 17:11:26 +0200145
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200146 _dev = stdio_clone(dev);
Jean-Christophe PLAGNIOL-VILLARD628ffd72008-09-01 17:11:26 +0200147 if(!_dev)
148 return -1;
Stefan Roese3e3c0262008-09-05 10:47:46 +0200149 list_add_tail(&(_dev->list), &(devs.list));
wdenk91d32562002-09-18 21:21:13 +0000150 return 0;
151}
152
153/* deregister the device "devname".
154 * returns 0 if success, -1 if device is assigned and 1 if devname not found
155 */
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200156#ifdef CONFIG_SYS_STDIO_DEREGISTER
Mike Frysingerd7be3052010-10-20 07:18:03 -0400157int stdio_deregister(const char *devname)
wdenk91d32562002-09-18 21:21:13 +0000158{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200159 int l;
160 struct list_head *pos;
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200161 struct stdio_dev *dev;
Bradley Bolen03bf22f2011-08-22 11:48:05 +0000162 char temp_names[3][16];
wdenk91d32562002-09-18 21:21:13 +0000163
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200164 dev = stdio_get_by_name(devname);
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200165
166 if(!dev) /* device not found */
167 return -1;
wdenk91d32562002-09-18 21:21:13 +0000168 /* get stdio devices (ListRemoveItem changes the dev list) */
169 for (l=0 ; l< MAX_FILES; l++) {
170 if (stdio_devices[l] == dev) {
171 /* Device is assigned -> report error */
172 return -1;
173 }
174 memcpy (&temp_names[l][0],
175 stdio_devices[l]->name,
Bradley Bolen03bf22f2011-08-22 11:48:05 +0000176 sizeof(temp_names[l]));
wdenk91d32562002-09-18 21:21:13 +0000177 }
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200178
179 list_del(&(dev->list));
180
wdenk91d32562002-09-18 21:21:13 +0000181 /* reassign Device list */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200182 list_for_each(pos, &(devs.list)) {
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200183 dev = list_entry(pos, struct stdio_dev, list);
wdenk91d32562002-09-18 21:21:13 +0000184 for (l=0 ; l< MAX_FILES; l++) {
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200185 if(strcmp(dev->name, temp_names[l]) == 0)
wdenk91d32562002-09-18 21:21:13 +0000186 stdio_devices[l] = dev;
wdenk91d32562002-09-18 21:21:13 +0000187 }
188 }
189 return 0;
190}
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200191#endif /* CONFIG_SYS_STDIO_DEREGISTER */
wdenk91d32562002-09-18 21:21:13 +0000192
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200193int stdio_init (void)
wdenk91d32562002-09-18 21:21:13 +0000194{
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200195#if defined(CONFIG_NEEDS_MANUAL_RELOC)
Peter Tyser521af042009-09-21 11:20:36 -0500196 /* already relocated for current ARM implementation */
wdenk91d32562002-09-18 21:21:13 +0000197 ulong relocation_offset = gd->reloc_off;
wdenk3595ac42003-06-22 17:18:28 +0000198 int i;
wdenk91d32562002-09-18 21:21:13 +0000199
200 /* relocate device name pointers */
201 for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
202 stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
203 relocation_offset);
204 }
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200205#endif /* CONFIG_NEEDS_MANUAL_RELOC */
wdenk91d32562002-09-18 21:21:13 +0000206
207 /* Initialize the list */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200208 INIT_LIST_HEAD(&(devs.list));
wdenk91d32562002-09-18 21:21:13 +0000209
Jean-Christophe PLAGNIOL-VILLARD4f572892009-02-22 15:49:28 +0100210#ifdef CONFIG_ARM_DCC_MULTI
211 drv_arm_dcc_init ();
212#endif
wdenk91d32562002-09-18 21:21:13 +0000213#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200214 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
wdenk91d32562002-09-18 21:21:13 +0000215#endif
216#ifdef CONFIG_LCD
217 drv_lcd_init ();
218#endif
wdenka6c7ad22002-12-03 21:28:10 +0000219#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
wdenk91d32562002-09-18 21:21:13 +0000220 drv_video_init ();
221#endif
wdenk682011f2003-06-03 23:54:09 +0000222#ifdef CONFIG_KEYBOARD
223 drv_keyboard_init ();
wdenk91d32562002-09-18 21:21:13 +0000224#endif
wdenk56f94be2002-11-05 16:35:14 +0000225#ifdef CONFIG_LOGBUFFER
226 drv_logbuff_init ();
227#endif
wdenk91d32562002-09-18 21:21:13 +0000228 drv_system_init ();
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200229 serial_stdio_init ();
wdenk232c1502004-03-12 00:14:09 +0000230#ifdef CONFIG_USB_TTY
231 drv_usbtty_init ();
232#endif
wdenk68ceb292004-08-02 21:11:11 +0000233#ifdef CONFIG_NETCONSOLE
234 drv_nc_init ();
235#endif
Mike Frysinger36ea8e92008-10-11 21:51:20 -0400236#ifdef CONFIG_JTAG_CONSOLE
237 drv_jtag_console_init ();
238#endif
Vadim Bendebury98ab4352012-10-12 18:48:47 +0000239#ifdef CONFIG_CBMEM_CONSOLE
240 cbmemc_init();
241#endif
wdenk91d32562002-09-18 21:21:13 +0000242 return (0);
243}