Yihui Xiong / nrf51822_fix_i2c_spi_conflict

fix nrf51822 i2c & spi conflict

Dependencies:   BLE_API eMPL_MPU6050 nRF51822

Fork of Seeed_Tiny_BLE_Flash by Darren Huang

mbed-src/api/DirHandle.h@5:b8c02645e6af, 2015-11-17 (annotated)

Committer:
yihui
Date:
Tue Nov 17 07:48:56 2015 +0000
Revision:
5:b8c02645e6af
fix i2c & spi conflict

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 5:b8c02645e6af 1 /* mbed Microcontroller Library
yihui 5:b8c02645e6af 2 * Copyright (c) 2006-2013 ARM Limited
yihui 5:b8c02645e6af 3 *
yihui 5:b8c02645e6af 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 5:b8c02645e6af 5 * you may not use this file except in compliance with the License.
yihui 5:b8c02645e6af 6 * You may obtain a copy of the License at
yihui 5:b8c02645e6af 7 *
yihui 5:b8c02645e6af 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 5:b8c02645e6af 9 *
yihui 5:b8c02645e6af 10 * Unless required by applicable law or agreed to in writing, software
yihui 5:b8c02645e6af 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 5:b8c02645e6af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 5:b8c02645e6af 13 * See the License for the specific language governing permissions and
yihui 5:b8c02645e6af 14 * limitations under the License.
yihui 5:b8c02645e6af 15 */
yihui 5:b8c02645e6af 16 #ifndef MBED_DIRHANDLE_H
yihui 5:b8c02645e6af 17 #define MBED_DIRHANDLE_H
yihui 5:b8c02645e6af 18
yihui 5:b8c02645e6af 19 #if defined(__ARMCC_VERSION) || defined(__ICCARM__)
yihui 5:b8c02645e6af 20 # define NAME_MAX 255
yihui 5:b8c02645e6af 21 typedef int mode_t;
yihui 5:b8c02645e6af 22
yihui 5:b8c02645e6af 23 #else
yihui 5:b8c02645e6af 24 # include <sys/syslimits.h>
yihui 5:b8c02645e6af 25 #endif
yihui 5:b8c02645e6af 26
yihui 5:b8c02645e6af 27 #include "FileHandle.h"
yihui 5:b8c02645e6af 28
yihui 5:b8c02645e6af 29 struct dirent {
yihui 5:b8c02645e6af 30 char d_name[NAME_MAX+1];
yihui 5:b8c02645e6af 31 };
yihui 5:b8c02645e6af 32
yihui 5:b8c02645e6af 33 namespace mbed {
yihui 5:b8c02645e6af 34
yihui 5:b8c02645e6af 35 /** Represents a directory stream. Objects of this type are returned
yihui 5:b8c02645e6af 36 * by a FileSystemLike's opendir method. Implementations must define
yihui 5:b8c02645e6af 37 * at least closedir, readdir and rewinddir.
yihui 5:b8c02645e6af 38 *
yihui 5:b8c02645e6af 39 * If a FileSystemLike class defines the opendir method, then the
yihui 5:b8c02645e6af 40 * directories of an object of that type can be accessed by
yihui 5:b8c02645e6af 41 * DIR *d = opendir("/example/directory") (or opendir("/example")
yihui 5:b8c02645e6af 42 * to open the root of the filesystem), and then using readdir(d) etc.
yihui 5:b8c02645e6af 43 *
yihui 5:b8c02645e6af 44 * The root directory is considered to contain all FileLike and
yihui 5:b8c02645e6af 45 * FileSystemLike objects, so the DIR* returned by opendir("/") will
yihui 5:b8c02645e6af 46 * reflect this.
yihui 5:b8c02645e6af 47 */
yihui 5:b8c02645e6af 48 class DirHandle {
yihui 5:b8c02645e6af 49
yihui 5:b8c02645e6af 50 public:
yihui 5:b8c02645e6af 51 /** Closes the directory.
yihui 5:b8c02645e6af 52 *
yihui 5:b8c02645e6af 53 * @returns
yihui 5:b8c02645e6af 54 * 0 on success,
yihui 5:b8c02645e6af 55 * -1 on error.
yihui 5:b8c02645e6af 56 */
yihui 5:b8c02645e6af 57 virtual int closedir()=0;
yihui 5:b8c02645e6af 58
yihui 5:b8c02645e6af 59 /** Return the directory entry at the current position, and
yihui 5:b8c02645e6af 60 * advances the position to the next entry.
yihui 5:b8c02645e6af 61 *
yihui 5:b8c02645e6af 62 * @returns
yihui 5:b8c02645e6af 63 * A pointer to a dirent structure representing the
yihui 5:b8c02645e6af 64 * directory entry at the current position, or NULL on reaching
yihui 5:b8c02645e6af 65 * end of directory or error.
yihui 5:b8c02645e6af 66 */
yihui 5:b8c02645e6af 67 virtual struct dirent *readdir()=0;
yihui 5:b8c02645e6af 68
yihui 5:b8c02645e6af 69 /** Resets the position to the beginning of the directory.
yihui 5:b8c02645e6af 70 */
yihui 5:b8c02645e6af 71 virtual void rewinddir()=0;
yihui 5:b8c02645e6af 72
yihui 5:b8c02645e6af 73 /** Returns the current position of the DirHandle.
yihui 5:b8c02645e6af 74 *
yihui 5:b8c02645e6af 75 * @returns
yihui 5:b8c02645e6af 76 * the current position,
yihui 5:b8c02645e6af 77 * -1 on error.
yihui 5:b8c02645e6af 78 */
yihui 5:b8c02645e6af 79 virtual off_t telldir() { return -1; }
yihui 5:b8c02645e6af 80
yihui 5:b8c02645e6af 81 /** Sets the position of the DirHandle.
yihui 5:b8c02645e6af 82 *
yihui 5:b8c02645e6af 83 * @param location The location to seek to. Must be a value returned by telldir.
yihui 5:b8c02645e6af 84 */
yihui 5:b8c02645e6af 85 virtual void seekdir(off_t location) { }
yihui 5:b8c02645e6af 86
yihui 5:b8c02645e6af 87 virtual ~DirHandle() {}
yihui 5:b8c02645e6af 88 };
yihui 5:b8c02645e6af 89
yihui 5:b8c02645e6af 90 } // namespace mbed
yihui 5:b8c02645e6af 91
yihui 5:b8c02645e6af 92 typedef mbed::DirHandle DIR;
yihui 5:b8c02645e6af 93
yihui 5:b8c02645e6af 94 extern "C" {
yihui 5:b8c02645e6af 95 DIR *opendir(const char*);
yihui 5:b8c02645e6af 96 struct dirent *readdir(DIR *);
yihui 5:b8c02645e6af 97 int closedir(DIR*);
yihui 5:b8c02645e6af 98 void rewinddir(DIR*);
yihui 5:b8c02645e6af 99 long telldir(DIR*);
yihui 5:b8c02645e6af 100 void seekdir(DIR*, long);
yihui 5:b8c02645e6af 101 int mkdir(const char *name, mode_t n);
yihui 5:b8c02645e6af 102 };
yihui 5:b8c02645e6af 103
yihui 5:b8c02645e6af 104 #endif /* MBED_DIRHANDLE_H */