Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * pnpbios.h - contains local definitions |
| 3 | */ |
| 4 | |
Bjorn Helgaas | dfd2e1b | 2008-04-28 16:34:42 -0600 | [diff] [blame^] | 5 | /* |
| 6 | * Include file for the interface to a PnP BIOS |
| 7 | * |
| 8 | * Original BIOS code (C) 1998 Christian Schmidt (chr.schmidt@tu-bs.de) |
| 9 | * PnP handler parts (c) 1998 Tom Lees <tom@lpsg.demon.co.uk> |
| 10 | * Minor reorganizations by David Hinds <dahinds@users.sourceforge.net> |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify it |
| 13 | * under the terms of the GNU General Public License as published by the |
| 14 | * Free Software Foundation; either version 2, or (at your option) any |
| 15 | * later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, but |
| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 20 | * General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 25 | */ |
| 26 | |
| 27 | /* |
| 28 | * Return codes |
| 29 | */ |
| 30 | #define PNP_SUCCESS 0x00 |
| 31 | #define PNP_NOT_SET_STATICALLY 0x7f |
| 32 | #define PNP_UNKNOWN_FUNCTION 0x81 |
| 33 | #define PNP_FUNCTION_NOT_SUPPORTED 0x82 |
| 34 | #define PNP_INVALID_HANDLE 0x83 |
| 35 | #define PNP_BAD_PARAMETER 0x84 |
| 36 | #define PNP_SET_FAILED 0x85 |
| 37 | #define PNP_EVENTS_NOT_PENDING 0x86 |
| 38 | #define PNP_SYSTEM_NOT_DOCKED 0x87 |
| 39 | #define PNP_NO_ISA_PNP_CARDS 0x88 |
| 40 | #define PNP_UNABLE_TO_DETERMINE_DOCK_CAPABILITIES 0x89 |
| 41 | #define PNP_CONFIG_CHANGE_FAILED_NO_BATTERY 0x8a |
| 42 | #define PNP_CONFIG_CHANGE_FAILED_RESOURCE_CONFLICT 0x8b |
| 43 | #define PNP_BUFFER_TOO_SMALL 0x8c |
| 44 | #define PNP_USE_ESCD_SUPPORT 0x8d |
| 45 | #define PNP_MESSAGE_NOT_SUPPORTED 0x8e |
| 46 | #define PNP_HARDWARE_ERROR 0x8f |
| 47 | |
| 48 | #define ESCD_SUCCESS 0x00 |
| 49 | #define ESCD_IO_ERROR_READING 0x55 |
| 50 | #define ESCD_INVALID 0x56 |
| 51 | #define ESCD_BUFFER_TOO_SMALL 0x59 |
| 52 | #define ESCD_NVRAM_TOO_SMALL 0x5a |
| 53 | #define ESCD_FUNCTION_NOT_SUPPORTED 0x81 |
| 54 | |
| 55 | /* |
| 56 | * Events that can be received by "get event" |
| 57 | */ |
| 58 | #define PNPEV_ABOUT_TO_CHANGE_CONFIG 0x0001 |
| 59 | #define PNPEV_DOCK_CHANGED 0x0002 |
| 60 | #define PNPEV_SYSTEM_DEVICE_CHANGED 0x0003 |
| 61 | #define PNPEV_CONFIG_CHANGED_FAILED 0x0004 |
| 62 | #define PNPEV_UNKNOWN_SYSTEM_EVENT 0xffff |
| 63 | /* 0x8000 through 0xfffe are OEM defined */ |
| 64 | |
| 65 | /* |
| 66 | * Messages that should be sent through "send message" |
| 67 | */ |
| 68 | #define PNPMSG_OK 0x00 |
| 69 | #define PNPMSG_ABORT 0x01 |
| 70 | #define PNPMSG_UNDOCK_DEFAULT_ACTION 0x40 |
| 71 | #define PNPMSG_POWER_OFF 0x41 |
| 72 | #define PNPMSG_PNP_OS_ACTIVE 0x42 |
| 73 | #define PNPMSG_PNP_OS_INACTIVE 0x43 |
| 74 | |
| 75 | /* |
| 76 | * Plug and Play BIOS flags |
| 77 | */ |
| 78 | #define PNPBIOS_NO_DISABLE 0x0001 |
| 79 | #define PNPBIOS_NO_CONFIG 0x0002 |
| 80 | #define PNPBIOS_OUTPUT 0x0004 |
| 81 | #define PNPBIOS_INPUT 0x0008 |
| 82 | #define PNPBIOS_BOOTABLE 0x0010 |
| 83 | #define PNPBIOS_DOCK 0x0020 |
| 84 | #define PNPBIOS_REMOVABLE 0x0040 |
| 85 | #define pnpbios_is_static(x) (((x)->flags & 0x0100) == 0x0000) |
| 86 | #define pnpbios_is_dynamic(x) ((x)->flags & 0x0080) |
| 87 | |
| 88 | /* |
| 89 | * Function Parameters |
| 90 | */ |
| 91 | #define PNPMODE_STATIC 1 |
| 92 | #define PNPMODE_DYNAMIC 0 |
| 93 | |
| 94 | /* 0x8000 through 0xffff are OEM defined */ |
| 95 | |
| 96 | #pragma pack(1) |
| 97 | struct pnp_dev_node_info { |
| 98 | __u16 no_nodes; |
| 99 | __u16 max_node_size; |
| 100 | }; |
| 101 | struct pnp_docking_station_info { |
| 102 | __u32 location_id; |
| 103 | __u32 serial; |
| 104 | __u16 capabilities; |
| 105 | }; |
| 106 | struct pnp_isa_config_struc { |
| 107 | __u8 revision; |
| 108 | __u8 no_csns; |
| 109 | __u16 isa_rd_data_port; |
| 110 | __u16 reserved; |
| 111 | }; |
| 112 | struct escd_info_struc { |
| 113 | __u16 min_escd_write_size; |
| 114 | __u16 escd_size; |
| 115 | __u32 nv_storage_base; |
| 116 | }; |
| 117 | struct pnp_bios_node { |
| 118 | __u16 size; |
| 119 | __u8 handle; |
| 120 | __u32 eisa_id; |
| 121 | __u8 type_code[3]; |
| 122 | __u16 flags; |
| 123 | __u8 data[0]; |
| 124 | }; |
| 125 | #pragma pack() |
| 126 | |
| 127 | /* non-exported */ |
| 128 | extern struct pnp_dev_node_info node_info; |
| 129 | |
| 130 | extern int pnp_bios_dev_node_info(struct pnp_dev_node_info *data); |
| 131 | extern int pnp_bios_get_dev_node(u8 *nodenum, char config, |
| 132 | struct pnp_bios_node *data); |
| 133 | extern int pnp_bios_set_dev_node(u8 nodenum, char config, |
| 134 | struct pnp_bios_node *data); |
| 135 | extern int pnp_bios_get_stat_res(char *info); |
| 136 | extern int pnp_bios_isapnp_config(struct pnp_isa_config_struc *data); |
| 137 | extern int pnp_bios_escd_info(struct escd_info_struc *data); |
| 138 | extern int pnp_bios_read_escd(char *data, u32 nvram_base); |
| 139 | extern int pnp_bios_dock_station_info(struct pnp_docking_station_info *data); |
| 140 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | #pragma pack(1) |
| 142 | union pnp_bios_install_struct { |
| 143 | struct { |
| 144 | u32 signature; /* "$PnP" */ |
| 145 | u8 version; /* in BCD */ |
| 146 | u8 length; /* length in bytes, currently 21h */ |
| 147 | u16 control; /* system capabilities */ |
| 148 | u8 checksum; /* all bytes must add up to 0 */ |
| 149 | |
| 150 | u32 eventflag; /* phys. address of the event flag */ |
| 151 | u16 rmoffset; /* real mode entry point */ |
| 152 | u16 rmcseg; |
| 153 | u16 pm16offset; /* 16 bit protected mode entry */ |
| 154 | u32 pm16cseg; |
| 155 | u32 deviceID; /* EISA encoded system ID or 0 */ |
| 156 | u16 rmdseg; /* real mode data segment */ |
| 157 | u32 pm16dseg; /* 16 bit pm data segment base */ |
| 158 | } fields; |
| 159 | char chars[0x21]; /* To calculate the checksum */ |
| 160 | }; |
| 161 | #pragma pack() |
| 162 | |
| 163 | extern int pnp_bios_present(void); |
| 164 | extern int pnpbios_dont_use_current_config; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
| 166 | extern int pnpbios_parse_data_stream(struct pnp_dev *dev, struct pnp_bios_node * node); |
Bjorn Helgaas | 4ab55d8 | 2008-04-28 16:34:06 -0600 | [diff] [blame] | 167 | extern int pnpbios_read_resources_from_node(struct pnp_dev *dev, struct pnp_bios_node *node); |
| 168 | extern int pnpbios_write_resources_to_node(struct pnp_dev *dev, struct pnp_bios_node *node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | extern void pnpid32_to_pnpid(u32 id, char *str); |
| 170 | |
| 171 | extern void pnpbios_print_status(const char * module, u16 status); |
| 172 | extern void pnpbios_calls_init(union pnp_bios_install_struct * header); |
| 173 | |
| 174 | #ifdef CONFIG_PNPBIOS_PROC_FS |
| 175 | extern int pnpbios_interface_attach_device(struct pnp_bios_node * node); |
| 176 | extern int pnpbios_proc_init (void); |
| 177 | extern void pnpbios_proc_exit (void); |
| 178 | #else |
| 179 | static inline int pnpbios_interface_attach_device(struct pnp_bios_node * node) { return 0; } |
| 180 | static inline int pnpbios_proc_init (void) { return 0; } |
| 181 | static inline void pnpbios_proc_exit (void) { ; } |
| 182 | #endif /* CONFIG_PNPBIOS_PROC_FS */ |