drivers/w1/w1.h

   1 /*
   2  *      w1.h
   3  *
   4  * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
   5  *
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20  */
  21
  22 #ifndef __W1_H
  23 #define __W1_H
  24
  25 struct w1_reg_num
  26 {
  27         __u64   family:8,
  28                 id:48,
  29                 crc:8;
  30 };
  31
  32 #ifdef __KERNEL__
  33
  34 #include <linux/completion.h>
  35 #include <linux/device.h>
  36
  37 #include <net/sock.h>
  38
  39 #include <asm/semaphore.h>
  40
  41 #include "w1_family.h"
  42
  43 #define W1_MAXNAMELEN           32
  44 #define W1_SLAVE_DATA_SIZE      128
  45
  46 #define W1_SEARCH               0xF0
  47 #define W1_CONDITIONAL_SEARCH   0xEC
  48 #define W1_CONVERT_TEMP         0x44
  49 #define W1_SKIP_ROM             0xCC
  50 #define W1_READ_SCRATCHPAD      0xBE
  51 #define W1_READ_ROM             0x33
  52 #define W1_READ_PSUPPLY         0xB4
  53 #define W1_MATCH_ROM            0x55
  54
  55 struct w1_slave
  56 {
  57         struct module           *owner;
  58         unsigned char           name[W1_MAXNAMELEN];
  59         struct list_head        w1_slave_entry;
  60         struct w1_reg_num       reg_num;
  61         atomic_t                refcnt;
  62         u8                      rom[9];
  63
  64         struct w1_master        *master;
  65         struct w1_family        *family;
  66         struct device           dev;
  67         struct completion       dev_released;
  68 };
  69
  70 struct w1_bus_master
  71 {
  72         unsigned long           data;
  73
  74         u8                      (*read_bit)(unsigned long);
  75         void                    (*write_bit)(unsigned long, u8);
  76 };
  77
  78 struct w1_master
  79 {
  80         struct list_head        w1_master_entry;
  81         struct module           *owner;
  82         unsigned char           name[W1_MAXNAMELEN];
  83         struct list_head        slist;
  84         int                     max_slave_count, slave_count;
  85         unsigned long           attempts;
  86         int                     initialized;
  87         u32                     id;
  88
  89         atomic_t                refcnt;
  90
  91         void                    *priv;
  92         int                     priv_size;
  93
  94         int                     need_exit;
  95         pid_t                   kpid;
  96         wait_queue_head_t       kwait;
  97         struct semaphore        mutex;
  98
  99         struct device_driver    *driver;
 100         struct device           dev;
 101         struct completion       dev_released;
 102         struct completion       dev_exited;
 103
 104         struct w1_bus_master    *bus_master;
 105
 106         u32                     seq, groups;
 107         struct sock             *nls;
 108 };
 109
 110 #endif /* __KERNEL__ */
 111
 112 #endif /* __W1_H */