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annotate packages/io/common/current/include/devtab.h @ 64:c38311975d4f ecos-sw-2000-01-28
Merge from eCos master repository on 2000-01-28-04:28:11-GMT
| author | jlarmour |
|---|---|
| date | Fri, 28 Jan 2000 04:59:39 +0000 |
| parents | 443894e2e912 |
| children | bf00f99aec69 |
| rev | line source |
|---|---|
| 2 | 1 #ifndef CYGONCE_IO_DEVTAB_H |
| 2 #define CYGONCE_IO_DEVTAB_H | |
| 3 // ==================================================================== | |
| 4 // | |
| 5 // devtab.h | |
| 6 // | |
| 7 // Device I/O Table | |
| 8 // | |
| 9 // ==================================================================== | |
| 10 //####COPYRIGHTBEGIN#### | |
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11 // |
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12 // ------------------------------------------- |
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13 // The contents of this file are subject to the Red Hat eCos Public License |
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14 // Version 1.0 (the "License"); you may not use this file except in |
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15 // compliance with the License. You may obtain a copy of the License at |
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16 // http://sourceware.cygnus.com/ecos |
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17 // |
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18 // Software distributed under the License is distributed on an |
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19 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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20 // License for the specific language governing rights and limitations under |
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21 // the License. |
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22 // |
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23 // The Original Code is eCos - Embedded Configurable Operating System, |
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24 // released September 30, 1998. |
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25 // |
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26 // The Initial Developer of the Original Code is Red Hat. |
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27 // Portions created by Red Hat are |
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28 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc. |
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29 // All Rights Reserved. |
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30 // ------------------------------------------- |
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31 // |
| 2 | 32 //####COPYRIGHTEND#### |
| 33 // ==================================================================== | |
| 34 //#####DESCRIPTIONBEGIN#### | |
| 35 // | |
| 36 // Author(s): gthomas | |
| 37 // Contributors: gthomas | |
| 38 // Date: 1999-02-04 | |
| 39 // Purpose: Describe low level I/O interfaces. | |
| 40 // Description: | |
| 41 // | |
| 42 //####DESCRIPTIONEND#### | |
| 43 // | |
| 44 // ==================================================================== | |
| 45 | |
| 46 // Private include file. This file should only be used by device | |
| 47 // drivers, not application code. | |
| 48 | |
| 49 #include <pkgconf/system.h> | |
| 50 #include <cyg/io/io.h> | |
| 51 #include <cyg/hal/drv_api.h> | |
| 52 | |
| 53 // Set of functions which handle top level I/O functions | |
| 54 typedef struct { | |
| 55 Cyg_ErrNo (*write)(cyg_io_handle_t handle, | |
| 56 const void *buf, | |
| 57 cyg_uint32 *len); | |
| 58 Cyg_ErrNo (*read)(cyg_io_handle_t handle, | |
| 59 void *buf, | |
| 60 cyg_uint32 *len); | |
| 61 Cyg_ErrNo (*get_config)(cyg_io_handle_t handle, | |
| 62 cyg_uint32 key, | |
| 63 void *buf, | |
| 64 cyg_uint32 *len); | |
| 65 Cyg_ErrNo (*set_config)(cyg_io_handle_t handle, | |
| 66 cyg_uint32 key, | |
| 67 const void *buf, | |
| 68 cyg_uint32 *len); | |
| 69 } cyg_devio_table_t; | |
| 70 | |
| 71 #define DEVIO_TABLE(_l,_write,_read,_get_config,_set_config) \ | |
| 72 cyg_devio_table_t _l = { \ | |
| 73 _write, \ | |
| 74 _read, \ | |
| 75 _get_config, \ | |
| 76 _set_config, \ | |
| 77 }; | |
| 78 | |
| 79 typedef struct cyg_devtab_entry { | |
| 80 const char *name; | |
| 81 const char *dep_name; | |
| 82 cyg_devio_table_t *handlers; | |
| 83 bool (*init)(struct cyg_devtab_entry *tab); | |
| 84 Cyg_ErrNo (*lookup)(struct cyg_devtab_entry **tab, | |
| 85 struct cyg_devtab_entry *sub_tab, | |
| 86 const char *name); | |
| 87 void *priv; | |
| 88 unsigned long status; | |
| 89 } cyg_devtab_entry_t; | |
| 90 | |
| 91 #define CYG_DEVTAB_STATUS_AVAIL 0x0001 | |
| 92 | |
| 93 extern cyg_devtab_entry_t __DEVTAB__[], __DEVTAB_END__; | |
| 94 | |
| 95 #define DEVTAB_ENTRY(_l,_name,_dep_name,_handlers,_init,_lookup,_priv) \ | |
| 96 cyg_devtab_entry_t _l __attribute__ ((section(".devtab"))) = { \ | |
| 97 _name, \ | |
| 98 _dep_name, \ | |
| 99 _handlers, \ | |
| 100 _init, \ | |
| 101 _lookup, \ | |
| 102 _priv \ | |
| 103 }; | |
| 104 | |
| 105 #define DEVTAB_ENTRY_NO_INIT(_l,_name,_dep_name,_handlers,_init,_lookup,_priv) \ | |
| 106 cyg_devtab_entry_t _l = { \ | |
| 107 _name, \ | |
| 108 _dep_name, \ | |
| 109 _handlers, \ | |
| 110 _init, \ | |
| 111 _lookup, \ | |
| 112 _priv \ | |
| 113 }; | |
| 114 | |
| 115 #endif // CYGONCE_IO_DEVTAB_H |