include/console.h

   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 #ifndef _CONSOLE_H_
  25 #define _CONSOLE_H_
  26
  27 #include <param.h>
  28 #include <linux/list.h>
  29 #include <driver.h>
  30
  31 #define CONSOLE_STDIN           (1 << 0)
  32 #define CONSOLE_STDOUT          (1 << 1)
  33 #define CONSOLE_STDERR          (1 << 2)
  34
  35 struct console_device {
  36         struct device_d *dev;
  37         struct device_d class_dev;
  38
  39         int (*tstc)(struct console_device *cdev);
  40         void (*putc)(struct console_device *cdev, char c);
  41         int  (*getc)(struct console_device *cdev);
  42         int (*setbrg)(struct console_device *cdev, int baudrate);
  43         void (*flush)(struct console_device *cdev);
  44
  45         struct list_head list;
  46
  47         unsigned char f_caps;
  48         unsigned char f_active;
  49
  50         struct param_d baudrate_param;
  51         char baudrate_string[8];
  52
  53         struct param_d active_param;
  54         char active[4];
  55 };
  56
  57 int console_register(struct console_device *cdev);
  58
  59 extern struct list_head console_list;
  60 #define for_each_console(console) list_for_each_entry(console, &console_list, list)
  61
  62 #define CFG_PBSIZE (CONFIG_CBSIZE+sizeof(CONFIG_PROMPT)+16)
  63
  64 void early_console_putc(void *base, char c);
  65 void early_console_init(void *base, int baudrate);
  66
  67 void early_console_start(const char *name, int baudrate);
  68
  69 /*
  70  * Resolve an early console name to a pointer pointing
  71  * to the consoles base address, usually implemented in
  72  * board setup file.
  73  */
  74 void *get_early_console_base(const char *name);
  75
  76 #endif
  77