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comparison packages/io/common/current/include/devtab.h @ 2112:44d250ab3b3a

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* src/iosys.c: * include/devtab.h: Add comments that bread/bwrite takes there parameters in blocks, not bytes.
author asl
date Fri, 02 Dec 2005 20:03:52 +0000
parents d2c90368aeef
children 74dbf4c3f2e1
comparison
equal deleted inserted replaced
2111:0ad51d0b250b 2112:44d250ab3b3a
67 cyg_uint32 *len); 67 cyg_uint32 *len);
68 Cyg_ErrNo (*read)(cyg_io_handle_t handle, 68 Cyg_ErrNo (*read)(cyg_io_handle_t handle,
69 void *buf, 69 void *buf,
70 cyg_uint32 *len); 70 cyg_uint32 *len);
71 Cyg_ErrNo (*bwrite)(cyg_io_handle_t handle, 71 Cyg_ErrNo (*bwrite)(cyg_io_handle_t handle,
72 const void *buf, 72 const void *buf,
73 cyg_uint32 *len, 73 cyg_uint32 *len, // in blocks
74 cyg_uint32 pos); 74 cyg_uint32 pos); // in blocks
75 Cyg_ErrNo (*bread)(cyg_io_handle_t handle, 75 Cyg_ErrNo (*bread)(cyg_io_handle_t handle,
76 void *buf, 76 void *buf,
77 cyg_uint32 *len, 77 cyg_uint32 *len, // in blocks
78 cyg_uint32 pos); 78 cyg_uint32 pos); // in blocks
79 cyg_bool (*select)(cyg_io_handle_t handle, 79 cyg_bool (*select)(cyg_io_handle_t handle,
80 cyg_uint32 which, 80 cyg_uint32 which,
81 CYG_ADDRWORD info); 81 CYG_ADDRWORD info);
82 Cyg_ErrNo (*get_config)(cyg_io_handle_t handle, 82 Cyg_ErrNo (*get_config)(cyg_io_handle_t handle,
83 cyg_uint32 key, 83 cyg_uint32 key,
128 _select, \ 128 _select, \
129 _get_config, \ 129 _get_config, \
130 _set_config, \ 130 _set_config, \
131 }; 131 };
132 132
133 // Note: _bwrite and _bread pass len and pos in terms of blocks, not
134 // bytes.
133 #define BLOCK_DEVIO_TABLE(_l,_bwrite,_bread,_select,_get_config,_set_config) \ 135 #define BLOCK_DEVIO_TABLE(_l,_bwrite,_bread,_select,_get_config,_set_config) \
134 cyg_devio_table_t _l = { \ 136 cyg_devio_table_t _l = { \
135 cyg_devio_cwrite, \ 137 cyg_devio_cwrite, \
136 cyg_devio_cread, \ 138 cyg_devio_cread, \
137 _bwrite, \ 139 _bwrite, \