wdenk | 91d3256 | 2002-09-18 21:21:13 +0000 | [diff] [blame] | 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> |
| 28 | #include <devices.h> |
wdenk | 7f6c2cb | 2002-11-10 22:06:23 +0000 | [diff] [blame] | 29 | #ifdef CONFIG_LOGBUFFER |
| 30 | #include <logbuff.h> |
| 31 | #endif |
| 32 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
wdenk | 91d3256 | 2002-09-18 21:21:13 +0000 | [diff] [blame] | 33 | #include <i2c.h> |
wdenk | 7f6c2cb | 2002-11-10 22:06:23 +0000 | [diff] [blame] | 34 | #endif |
wdenk | 91d3256 | 2002-09-18 21:21:13 +0000 | [diff] [blame] | 35 | |
| 36 | list_t devlist = 0; |
| 37 | device_t *stdio_devices[] = { NULL, NULL, NULL }; |
| 38 | char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" }; |
| 39 | |
| 40 | #ifdef CFG_DEVICE_NULLDEV |
| 41 | void nulldev_putc(const char c) |
| 42 | { |
| 43 | /* nulldev is empty! */ |
| 44 | } |
| 45 | |
| 46 | void nulldev_puts(const char *s) |
| 47 | { |
| 48 | /* nulldev is empty! */ |
| 49 | } |
| 50 | |
| 51 | int nulldev_input(void) |
| 52 | { |
| 53 | /* nulldev is empty! */ |
| 54 | return 0; |
| 55 | } |
| 56 | #endif |
| 57 | |
| 58 | /************************************************************************** |
| 59 | * SYSTEM DRIVERS |
| 60 | ************************************************************************** |
| 61 | */ |
| 62 | |
| 63 | static void drv_system_init (void) |
| 64 | { |
| 65 | device_t dev; |
| 66 | |
| 67 | memset (&dev, 0, sizeof (dev)); |
| 68 | |
| 69 | strcpy (dev.name, "serial"); |
| 70 | dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; |
| 71 | #if CONFIG_SERIAL_SOFTWARE_FIFO |
| 72 | dev.putc = serial_buffered_putc; |
| 73 | dev.puts = serial_buffered_puts; |
| 74 | dev.getc = serial_buffered_getc; |
| 75 | dev.tstc = serial_buffered_tstc; |
| 76 | #else |
| 77 | dev.putc = serial_putc; |
| 78 | dev.puts = serial_puts; |
| 79 | dev.getc = serial_getc; |
| 80 | dev.tstc = serial_tstc; |
| 81 | #endif |
| 82 | |
| 83 | device_register (&dev); |
| 84 | |
| 85 | #ifdef CFG_DEVICE_NULLDEV |
| 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 | |
| 95 | device_register (&dev); |
| 96 | #endif |
| 97 | } |
| 98 | |
| 99 | /************************************************************************** |
| 100 | * DEVICES |
| 101 | ************************************************************************** |
| 102 | */ |
| 103 | |
| 104 | int device_register (device_t * dev) |
| 105 | { |
| 106 | ListInsertItem (devlist, dev, LIST_END); |
| 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | /* deregister the device "devname". |
| 111 | * returns 0 if success, -1 if device is assigned and 1 if devname not found |
| 112 | */ |
| 113 | #ifdef CFG_DEVICE_DEREGISTER |
| 114 | int device_deregister(char *devname) |
| 115 | { |
| 116 | int i,l,dev_index; |
| 117 | device_t *dev = NULL; |
| 118 | char temp_names[3][8]; |
| 119 | |
| 120 | dev_index=-1; |
| 121 | for (i=1; i<=ListNumItems(devlist); i++) { |
| 122 | dev = ListGetPtrToItem (devlist, i); |
| 123 | if(strcmp(dev->name,devname)==0) { |
| 124 | dev_index=i; |
| 125 | break; |
| 126 | } |
| 127 | } |
| 128 | if(dev_index<0) /* device not found */ |
| 129 | return 0; |
| 130 | /* get stdio devices (ListRemoveItem changes the dev list) */ |
| 131 | for (l=0 ; l< MAX_FILES; l++) { |
| 132 | if (stdio_devices[l] == dev) { |
| 133 | /* Device is assigned -> report error */ |
| 134 | return -1; |
| 135 | } |
| 136 | memcpy (&temp_names[l][0], |
| 137 | stdio_devices[l]->name, |
| 138 | sizeof(stdio_devices[l]->name)); |
| 139 | } |
| 140 | ListRemoveItem(devlist,NULL,dev_index); |
| 141 | /* reassign Device list */ |
| 142 | for (i=1; i<=ListNumItems(devlist); i++) { |
| 143 | dev = ListGetPtrToItem (devlist, i); |
| 144 | for (l=0 ; l< MAX_FILES; l++) { |
| 145 | if(strcmp(dev->name,temp_names[l])==0) { |
| 146 | stdio_devices[l] = dev; |
| 147 | } |
| 148 | } |
| 149 | } |
| 150 | return 0; |
| 151 | } |
| 152 | #endif /* CFG_DEVICE_DEREGISTER */ |
| 153 | |
| 154 | int devices_init (void) |
| 155 | { |
| 156 | DECLARE_GLOBAL_DATA_PTR; |
| 157 | |
| 158 | int i; |
| 159 | ulong relocation_offset = gd->reloc_off; |
| 160 | |
| 161 | /* relocate device name pointers */ |
| 162 | for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) { |
| 163 | stdio_names[i] = (char *) (((ulong) stdio_names[i]) + |
| 164 | relocation_offset); |
| 165 | } |
| 166 | |
| 167 | /* Initialize the list */ |
| 168 | devlist = ListCreate (sizeof (device_t)); |
| 169 | |
| 170 | if (devlist == NULL) { |
| 171 | eputs ("Cannot initialize the list of devices!\n"); |
| 172 | return -1; |
| 173 | } |
| 174 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
| 175 | i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE); |
| 176 | #endif |
| 177 | #ifdef CONFIG_LCD |
| 178 | drv_lcd_init (); |
| 179 | #endif |
wdenk | a6c7ad2 | 2002-12-03 21:28:10 +0000 | [diff] [blame^] | 180 | #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) |
wdenk | 91d3256 | 2002-09-18 21:21:13 +0000 | [diff] [blame] | 181 | drv_video_init (); |
| 182 | #endif |
| 183 | #ifdef CONFIG_WL_4PPM_KEYBOARD |
| 184 | drv_wlkbd_init (); |
| 185 | #endif |
wdenk | 56f94be | 2002-11-05 16:35:14 +0000 | [diff] [blame] | 186 | #ifdef CONFIG_LOGBUFFER |
| 187 | drv_logbuff_init (); |
| 188 | #endif |
wdenk | 91d3256 | 2002-09-18 21:21:13 +0000 | [diff] [blame] | 189 | drv_system_init (); |
| 190 | |
| 191 | gd-> flags |= GD_FLG_DEVINIT; /* device initialization done */ |
| 192 | |
| 193 | return (0); |
| 194 | } |
| 195 | |
| 196 | int devices_done (void) |
| 197 | { |
| 198 | ListDispose (devlist); |
| 199 | |
| 200 | return 0; |
| 201 | } |