include/linux/pnpbios.h

   1 /*
   2  * Include file for the interface to a PnP BIOS
   3  *
   4  * Original BIOS code (C) 1998 Christian Schmidt (chr.schmidt@tu-bs.de)
   5  * PnP handler parts (c) 1998 Tom Lees <tom@lpsg.demon.co.uk>
   6  * Minor reorganizations by David Hinds <dahinds@users.sourceforge.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2, or (at your option) any
  11  * later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * 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, MA  02111-1307  USA
  21  */
  22
  23 #ifndef _LINUX_PNPBIOS_H
  24 #define _LINUX_PNPBIOS_H
  25
  26 #ifdef __KERNEL__
  27
  28 #include <linux/types.h>
  29 #include <linux/pnp.h>
  30
  31 /*
  32  * Return codes
  33  */
  34 #define PNP_SUCCESS                     0x00
  35 #define PNP_NOT_SET_STATICALLY          0x7f
  36 #define PNP_UNKNOWN_FUNCTION            0x81
  37 #define PNP_FUNCTION_NOT_SUPPORTED      0x82
  38 #define PNP_INVALID_HANDLE              0x83
  39 #define PNP_BAD_PARAMETER               0x84
  40 #define PNP_SET_FAILED                  0x85
  41 #define PNP_EVENTS_NOT_PENDING          0x86
  42 #define PNP_SYSTEM_NOT_DOCKED           0x87
  43 #define PNP_NO_ISA_PNP_CARDS            0x88
  44 #define PNP_UNABLE_TO_DETERMINE_DOCK_CAPABILITIES 0x89
  45 #define PNP_CONFIG_CHANGE_FAILED_NO_BATTERY 0x8a
  46 #define PNP_CONFIG_CHANGE_FAILED_RESOURCE_CONFLICT 0x8b
  47 #define PNP_BUFFER_TOO_SMALL            0x8c
  48 #define PNP_USE_ESCD_SUPPORT            0x8d
  49 #define PNP_MESSAGE_NOT_SUPPORTED       0x8e
  50 #define PNP_HARDWARE_ERROR              0x8f
  51
  52 #define ESCD_SUCCESS                    0x00
  53 #define ESCD_IO_ERROR_READING           0x55
  54 #define ESCD_INVALID                    0x56
  55 #define ESCD_BUFFER_TOO_SMALL           0x59
  56 #define ESCD_NVRAM_TOO_SMALL            0x5a
  57 #define ESCD_FUNCTION_NOT_SUPPORTED     0x81
  58
  59 /*
  60  * Events that can be received by "get event"
  61  */
  62 #define PNPEV_ABOUT_TO_CHANGE_CONFIG    0x0001
  63 #define PNPEV_DOCK_CHANGED              0x0002
  64 #define PNPEV_SYSTEM_DEVICE_CHANGED     0x0003
  65 #define PNPEV_CONFIG_CHANGED_FAILED     0x0004
  66 #define PNPEV_UNKNOWN_SYSTEM_EVENT      0xffff
  67 /* 0x8000 through 0xfffe are OEM defined */
  68
  69 /*
  70  * Messages that should be sent through "send message"
  71  */
  72 #define PNPMSG_OK                       0x00
  73 #define PNPMSG_ABORT                    0x01
  74 #define PNPMSG_UNDOCK_DEFAULT_ACTION    0x40
  75 #define PNPMSG_POWER_OFF                0x41
  76 #define PNPMSG_PNP_OS_ACTIVE            0x42
  77 #define PNPMSG_PNP_OS_INACTIVE          0x43
  78
  79 /*
  80  * Plug and Play BIOS flags
  81  */
  82 #define PNPBIOS_NO_DISABLE              0x0001
  83 #define PNPBIOS_NO_CONFIG               0x0002
  84 #define PNPBIOS_OUTPUT                  0x0004
  85 #define PNPBIOS_INPUT                   0x0008
  86 #define PNPBIOS_BOOTABLE                0x0010
  87 #define PNPBIOS_DOCK                    0x0020
  88 #define PNPBIOS_REMOVABLE               0x0040
  89 #define pnpbios_is_static(x) (((x)->flags & 0x0100) == 0x0000)
  90 #define pnpbios_is_dynamic(x) ((x)->flags & 0x0080)
  91
  92 /*
  93  * Function Parameters
  94  */
  95 #define PNPMODE_STATIC 1
  96 #define PNPMODE_DYNAMIC 0
  97
  98 /* 0x8000 through 0xffff are OEM defined */
  99
 100 #pragma pack(1)
 101 struct pnp_dev_node_info {
 102         __u16 no_nodes;
 103         __u16 max_node_size;
 104 };
 105 struct pnp_docking_station_info {
 106         __u32 location_id;
 107         __u32 serial;
 108         __u16 capabilities;
 109 };
 110 struct pnp_isa_config_struc {
 111         __u8 revision;
 112         __u8 no_csns;
 113         __u16 isa_rd_data_port;
 114         __u16 reserved;
 115 };
 116 struct escd_info_struc {
 117         __u16 min_escd_write_size;
 118         __u16 escd_size;
 119         __u32 nv_storage_base;
 120 };
 121 struct pnp_bios_node {
 122         __u16 size;
 123         __u8 handle;
 124         __u32 eisa_id;
 125         __u8 type_code[3];
 126         __u16 flags;
 127         __u8 data[0];
 128 };
 129 #pragma pack()
 130
 131 #ifdef CONFIG_PNPBIOS
 132
 133 /* non-exported */
 134 extern struct pnp_dev_node_info node_info;
 135
 136 extern int pnp_bios_dev_node_info(struct pnp_dev_node_info *data);
 137 extern int pnp_bios_get_dev_node(u8 *nodenum, char config,
 138                                  struct pnp_bios_node *data);
 139 extern int pnp_bios_set_dev_node(u8 nodenum, char config,
 140                                  struct pnp_bios_node *data);
 141 extern int pnp_bios_get_stat_res(char *info);
 142 extern int pnp_bios_isapnp_config(struct pnp_isa_config_struc *data);
 143 extern int pnp_bios_escd_info(struct escd_info_struc *data);
 144 extern int pnp_bios_read_escd(char *data, u32 nvram_base);
 145 extern int pnp_bios_dock_station_info(struct pnp_docking_station_info *data);
 146
 147 #endif /* CONFIG_PNPBIOS */
 148
 149 #endif /* __KERNEL__ */
 150
 151 #endif /* _LINUX_PNPBIOS_H */