| /* |
| * (C) Copyright 2000 |
| * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #include <config.h> |
| #include <common.h> |
| #include <stdarg.h> |
| #include <malloc.h> |
| #include <devices.h> |
| #ifdef CONFIG_LOGBUFFER |
| #include <logbuff.h> |
| #endif |
| #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
| #include <i2c.h> |
| #endif |
| |
| list_t devlist = 0; |
| device_t *stdio_devices[] = { NULL, NULL, NULL }; |
| char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" }; |
| |
| #if defined(CONFIG_SPLASH_SCREEN) && !defined(CFG_DEVICE_NULLDEV) |
| #define CFG_DEVICE_NULLDEV 1 |
| #endif |
| |
| |
| #ifdef CFG_DEVICE_NULLDEV |
| void nulldev_putc(const char c) |
| { |
| /* nulldev is empty! */ |
| } |
| |
| void nulldev_puts(const char *s) |
| { |
| /* nulldev is empty! */ |
| } |
| |
| int nulldev_input(void) |
| { |
| /* nulldev is empty! */ |
| return 0; |
| } |
| #endif |
| |
| /************************************************************************** |
| * SYSTEM DRIVERS |
| ************************************************************************** |
| */ |
| |
| static void drv_system_init (void) |
| { |
| device_t dev; |
| |
| memset (&dev, 0, sizeof (dev)); |
| |
| strcpy (dev.name, "serial"); |
| dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; |
| #if CONFIG_SERIAL_SOFTWARE_FIFO |
| dev.putc = serial_buffered_putc; |
| dev.puts = serial_buffered_puts; |
| dev.getc = serial_buffered_getc; |
| dev.tstc = serial_buffered_tstc; |
| #else |
| dev.putc = serial_putc; |
| dev.puts = serial_puts; |
| dev.getc = serial_getc; |
| dev.tstc = serial_tstc; |
| #endif |
| |
| device_register (&dev); |
| |
| #ifdef CFG_DEVICE_NULLDEV |
| memset (&dev, 0, sizeof (dev)); |
| |
| strcpy (dev.name, "nulldev"); |
| dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; |
| dev.putc = nulldev_putc; |
| dev.puts = nulldev_puts; |
| dev.getc = nulldev_input; |
| dev.tstc = nulldev_input; |
| |
| device_register (&dev); |
| #endif |
| } |
| |
| /************************************************************************** |
| * DEVICES |
| ************************************************************************** |
| */ |
| |
| int device_register (device_t * dev) |
| { |
| ListInsertItem (devlist, dev, LIST_END); |
| return 0; |
| } |
| |
| /* deregister the device "devname". |
| * returns 0 if success, -1 if device is assigned and 1 if devname not found |
| */ |
| #ifdef CFG_DEVICE_DEREGISTER |
| int device_deregister(char *devname) |
| { |
| int i,l,dev_index; |
| device_t *dev = NULL; |
| char temp_names[3][8]; |
| |
| dev_index=-1; |
| for (i=1; i<=ListNumItems(devlist); i++) { |
| dev = ListGetPtrToItem (devlist, i); |
| if(strcmp(dev->name,devname)==0) { |
| dev_index=i; |
| break; |
| } |
| } |
| if(dev_index<0) /* device not found */ |
| return 0; |
| /* get stdio devices (ListRemoveItem changes the dev list) */ |
| for (l=0 ; l< MAX_FILES; l++) { |
| if (stdio_devices[l] == dev) { |
| /* Device is assigned -> report error */ |
| return -1; |
| } |
| memcpy (&temp_names[l][0], |
| stdio_devices[l]->name, |
| sizeof(stdio_devices[l]->name)); |
| } |
| ListRemoveItem(devlist,NULL,dev_index); |
| /* reassign Device list */ |
| for (i=1; i<=ListNumItems(devlist); i++) { |
| dev = ListGetPtrToItem (devlist, i); |
| for (l=0 ; l< MAX_FILES; l++) { |
| if(strcmp(dev->name,temp_names[l])==0) { |
| stdio_devices[l] = dev; |
| } |
| } |
| } |
| return 0; |
| } |
| #endif /* CFG_DEVICE_DEREGISTER */ |
| |
| int devices_init (void) |
| { |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| int i; |
| ulong relocation_offset = gd->reloc_off; |
| |
| /* relocate device name pointers */ |
| for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) { |
| stdio_names[i] = (char *) (((ulong) stdio_names[i]) + |
| relocation_offset); |
| } |
| |
| /* Initialize the list */ |
| devlist = ListCreate (sizeof (device_t)); |
| |
| if (devlist == NULL) { |
| eputs ("Cannot initialize the list of devices!\n"); |
| return -1; |
| } |
| #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
| i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE); |
| #endif |
| #ifdef CONFIG_LCD |
| drv_lcd_init (); |
| #endif |
| #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) |
| drv_video_init (); |
| #endif |
| #ifdef CONFIG_KEYBOARD |
| drv_keyboard_init (); |
| #endif |
| #ifdef CONFIG_LOGBUFFER |
| drv_logbuff_init (); |
| #endif |
| drv_system_init (); |
| |
| gd-> flags |= GD_FLG_DEVINIT; /* device initialization done */ |
| |
| return (0); |
| } |
| |
| int devices_done (void) |
| { |
| ListDispose (devlist); |
| |
| return 0; |
| } |