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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>
28#include <devices.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-VILLARDc1de7a62008-08-31 04:24:55 +020039static device_t devs;
wdenk91d32562002-09-18 21:21:13 +000040device_t *stdio_devices[] = { NULL, NULL, NULL };
41char *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{
73 device_t dev;
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;
wdenk42dfe7a2004-03-14 22:25:36 +000079#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
wdenk91d32562002-09-18 21:21:13 +000080 dev.putc = serial_buffered_putc;
81 dev.puts = serial_buffered_puts;
82 dev.getc = serial_buffered_getc;
83 dev.tstc = serial_buffered_tstc;
84#else
85 dev.putc = serial_putc;
86 dev.puts = serial_puts;
87 dev.getc = serial_getc;
88 dev.tstc = serial_tstc;
89#endif
90
91 device_register (&dev);
92
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020093#ifdef CONFIG_SYS_DEVICE_NULLDEV
wdenk91d32562002-09-18 21:21:13 +000094 memset (&dev, 0, sizeof (dev));
95
96 strcpy (dev.name, "nulldev");
97 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
98 dev.putc = nulldev_putc;
99 dev.puts = nulldev_puts;
100 dev.getc = nulldev_input;
101 dev.tstc = nulldev_input;
102
103 device_register (&dev);
104#endif
105}
106
107/**************************************************************************
108 * DEVICES
109 **************************************************************************
110 */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200111struct list_head* device_get_list(void)
112{
113 return &(devs.list);
114}
115
116device_t* device_get_by_name(char* name)
117{
118 struct list_head *pos;
119 device_t *dev;
120
121 if(!name)
122 return NULL;
123
124 list_for_each(pos, &(devs.list)) {
125 dev = list_entry(pos, device_t, list);
126 if(strcmp(dev->name, name) == 0)
127 return dev;
128 }
129
130 return NULL;
131}
132
Jean-Christophe PLAGNIOL-VILLARD628ffd72008-09-01 17:11:26 +0200133device_t* device_clone(device_t *dev)
134{
135 device_t *_dev;
136
137 if(!dev)
138 return NULL;
139
140 _dev = calloc(1, sizeof(device_t));
141
142 if(!_dev)
143 return NULL;
144
145 memcpy(_dev, dev, sizeof(device_t));
146 strncpy(_dev->name, dev->name, 16);
147
148 return _dev;
149}
wdenk91d32562002-09-18 21:21:13 +0000150
151int device_register (device_t * dev)
152{
Jean-Christophe PLAGNIOL-VILLARD628ffd72008-09-01 17:11:26 +0200153 device_t *_dev;
154
155 _dev = device_clone(dev);
156 if(!_dev)
157 return -1;
Stefan Roese3e3c0262008-09-05 10:47:46 +0200158 list_add_tail(&(_dev->list), &(devs.list));
wdenk91d32562002-09-18 21:21:13 +0000159 return 0;
160}
161
162/* deregister the device "devname".
163 * returns 0 if success, -1 if device is assigned and 1 if devname not found
164 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200165#ifdef CONFIG_SYS_DEVICE_DEREGISTER
wdenk91d32562002-09-18 21:21:13 +0000166int device_deregister(char *devname)
167{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200168 int l;
169 struct list_head *pos;
170 device_t *dev;
wdenk91d32562002-09-18 21:21:13 +0000171 char temp_names[3][8];
172
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200173 dev = device_get_by_name(devname);
174
175 if(!dev) /* device not found */
176 return -1;
wdenk91d32562002-09-18 21:21:13 +0000177 /* get stdio devices (ListRemoveItem changes the dev list) */
178 for (l=0 ; l< MAX_FILES; l++) {
179 if (stdio_devices[l] == dev) {
180 /* Device is assigned -> report error */
181 return -1;
182 }
183 memcpy (&temp_names[l][0],
184 stdio_devices[l]->name,
185 sizeof(stdio_devices[l]->name));
186 }
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200187
188 list_del(&(dev->list));
189
wdenk91d32562002-09-18 21:21:13 +0000190 /* reassign Device list */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200191 list_for_each(pos, &(devs.list)) {
192 dev = list_entry(pos, device_t, list);
wdenk91d32562002-09-18 21:21:13 +0000193 for (l=0 ; l< MAX_FILES; l++) {
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200194 if(strcmp(dev->name, temp_names[l]) == 0)
wdenk91d32562002-09-18 21:21:13 +0000195 stdio_devices[l] = dev;
wdenk91d32562002-09-18 21:21:13 +0000196 }
197 }
198 return 0;
199}
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200200#endif /* CONFIG_SYS_DEVICE_DEREGISTER */
wdenk91d32562002-09-18 21:21:13 +0000201
202int devices_init (void)
203{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200204#ifndef CONFIG_ARM /* already relocated for current ARM implementation */
wdenk91d32562002-09-18 21:21:13 +0000205 ulong relocation_offset = gd->reloc_off;
wdenk3595ac42003-06-22 17:18:28 +0000206 int i;
wdenk91d32562002-09-18 21:21:13 +0000207
208 /* relocate device name pointers */
209 for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
210 stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
211 relocation_offset);
212 }
wdenk3595ac42003-06-22 17:18:28 +0000213#endif
wdenk91d32562002-09-18 21:21:13 +0000214
215 /* Initialize the list */
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200216 INIT_LIST_HEAD(&(devs.list));
wdenk91d32562002-09-18 21:21:13 +0000217
wdenk91d32562002-09-18 21:21:13 +0000218#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200219 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
wdenk91d32562002-09-18 21:21:13 +0000220#endif
221#ifdef CONFIG_LCD
222 drv_lcd_init ();
223#endif
wdenka6c7ad22002-12-03 21:28:10 +0000224#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
wdenk91d32562002-09-18 21:21:13 +0000225 drv_video_init ();
226#endif
wdenk682011f2003-06-03 23:54:09 +0000227#ifdef CONFIG_KEYBOARD
228 drv_keyboard_init ();
wdenk91d32562002-09-18 21:21:13 +0000229#endif
wdenk56f94be2002-11-05 16:35:14 +0000230#ifdef CONFIG_LOGBUFFER
231 drv_logbuff_init ();
232#endif
wdenk91d32562002-09-18 21:21:13 +0000233 drv_system_init ();
wdenk281e00a2004-08-01 22:48:16 +0000234#ifdef CONFIG_SERIAL_MULTI
235 serial_devices_init ();
236#endif
wdenk232c1502004-03-12 00:14:09 +0000237#ifdef CONFIG_USB_TTY
238 drv_usbtty_init ();
239#endif
wdenk68ceb292004-08-02 21:11:11 +0000240#ifdef CONFIG_NETCONSOLE
241 drv_nc_init ();
242#endif
wdenk91d32562002-09-18 21:21:13 +0000243
wdenk91d32562002-09-18 21:21:13 +0000244 return (0);
245}