Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

api/FileSystemLike.h@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2006-2013 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #ifndef MBED_FILESYSTEMLIKE_H
<> 144:ef7eb2e8f9f7 17 #define MBED_FILESYSTEMLIKE_H
<> 144:ef7eb2e8f9f7 18
<> 144:ef7eb2e8f9f7 19 #include "platform.h"
<> 144:ef7eb2e8f9f7 20
<> 144:ef7eb2e8f9f7 21 #include "FileBase.h"
<> 144:ef7eb2e8f9f7 22 #include "FileHandle.h"
<> 144:ef7eb2e8f9f7 23 #include "DirHandle.h"
<> 144:ef7eb2e8f9f7 24
<> 144:ef7eb2e8f9f7 25 namespace mbed {
<> 144:ef7eb2e8f9f7 26
<> 144:ef7eb2e8f9f7 27 /** A filesystem-like object is one that can be used to open files
<> 144:ef7eb2e8f9f7 28 * though it by fopen("/name/filename", mode)
<> 144:ef7eb2e8f9f7 29 *
<> 144:ef7eb2e8f9f7 30 * Implementations must define at least open (the default definitions
<> 144:ef7eb2e8f9f7 31 * of the rest of the functions just return error values).
<> 144:ef7eb2e8f9f7 32 *
<> 144:ef7eb2e8f9f7 33 * @Note Synchronization level: Set by subclass
<> 144:ef7eb2e8f9f7 34 */
<> 144:ef7eb2e8f9f7 35 class FileSystemLike : public FileBase {
<> 144:ef7eb2e8f9f7 36
<> 144:ef7eb2e8f9f7 37 public:
<> 144:ef7eb2e8f9f7 38 /** FileSystemLike constructor
<> 144:ef7eb2e8f9f7 39 *
<> 144:ef7eb2e8f9f7 40 * @param name The name to use for the filesystem.
<> 144:ef7eb2e8f9f7 41 */
<> 144:ef7eb2e8f9f7 42 FileSystemLike(const char *name);
<> 144:ef7eb2e8f9f7 43
<> 144:ef7eb2e8f9f7 44 virtual ~FileSystemLike();
<> 144:ef7eb2e8f9f7 45
<> 144:ef7eb2e8f9f7 46 static DirHandle *opendir();
<> 144:ef7eb2e8f9f7 47 friend class BaseDirHandle;
<> 144:ef7eb2e8f9f7 48
<> 144:ef7eb2e8f9f7 49 /** Opens a file from the filesystem
<> 144:ef7eb2e8f9f7 50 *
<> 144:ef7eb2e8f9f7 51 * @param filename The name of the file to open.
<> 144:ef7eb2e8f9f7 52 * @param flags One of O_RDONLY, O_WRONLY, or O_RDWR, OR'd with
<> 144:ef7eb2e8f9f7 53 * zero or more of O_CREAT, O_TRUNC, or O_APPEND.
<> 144:ef7eb2e8f9f7 54 *
<> 144:ef7eb2e8f9f7 55 * @returns
<> 144:ef7eb2e8f9f7 56 * A pointer to a FileHandle object representing the
<> 144:ef7eb2e8f9f7 57 * file on success, or NULL on failure.
<> 144:ef7eb2e8f9f7 58 */
<> 144:ef7eb2e8f9f7 59 virtual FileHandle *open(const char *filename, int flags) = 0;
<> 144:ef7eb2e8f9f7 60
<> 144:ef7eb2e8f9f7 61 /** Remove a file from the filesystem.
<> 144:ef7eb2e8f9f7 62 *
<> 144:ef7eb2e8f9f7 63 * @param filename the name of the file to remove.
<> 144:ef7eb2e8f9f7 64 * @param returns 0 on success, -1 on failure.
<> 144:ef7eb2e8f9f7 65 */
<> 144:ef7eb2e8f9f7 66 virtual int remove(const char *filename) { (void) filename; return -1; };
<> 144:ef7eb2e8f9f7 67
<> 144:ef7eb2e8f9f7 68 /** Rename a file in the filesystem.
<> 144:ef7eb2e8f9f7 69 *
<> 144:ef7eb2e8f9f7 70 * @param oldname the name of the file to rename.
<> 144:ef7eb2e8f9f7 71 * @param newname the name to rename it to.
<> 144:ef7eb2e8f9f7 72 *
<> 144:ef7eb2e8f9f7 73 * @returns
<> 144:ef7eb2e8f9f7 74 * 0 on success,
<> 144:ef7eb2e8f9f7 75 * -1 on failure.
<> 144:ef7eb2e8f9f7 76 */
<> 144:ef7eb2e8f9f7 77 virtual int rename(const char *oldname, const char *newname) { (void) oldname, (void) newname; return -1; };
<> 144:ef7eb2e8f9f7 78
<> 144:ef7eb2e8f9f7 79 /** Opens a directory in the filesystem and returns a DirHandle
<> 144:ef7eb2e8f9f7 80 * representing the directory stream.
<> 144:ef7eb2e8f9f7 81 *
<> 144:ef7eb2e8f9f7 82 * @param name The name of the directory to open.
<> 144:ef7eb2e8f9f7 83 *
<> 144:ef7eb2e8f9f7 84 * @returns
<> 144:ef7eb2e8f9f7 85 * A DirHandle representing the directory stream, or
<> 144:ef7eb2e8f9f7 86 * NULL on failure.
<> 144:ef7eb2e8f9f7 87 */
<> 144:ef7eb2e8f9f7 88 virtual DirHandle *opendir(const char *name) { (void) name; return NULL; };
<> 144:ef7eb2e8f9f7 89
<> 144:ef7eb2e8f9f7 90 /** Creates a directory in the filesystem.
<> 144:ef7eb2e8f9f7 91 *
<> 144:ef7eb2e8f9f7 92 * @param name The name of the directory to create.
<> 144:ef7eb2e8f9f7 93 * @param mode The permissions to create the directory with.
<> 144:ef7eb2e8f9f7 94 *
<> 144:ef7eb2e8f9f7 95 * @returns
<> 144:ef7eb2e8f9f7 96 * 0 on success,
<> 144:ef7eb2e8f9f7 97 * -1 on failure.
<> 144:ef7eb2e8f9f7 98 */
<> 144:ef7eb2e8f9f7 99 virtual int mkdir(const char *name, mode_t mode) { (void) name, (void) mode; return -1; }
<> 144:ef7eb2e8f9f7 100
<> 144:ef7eb2e8f9f7 101 // TODO other filesystem functions (mkdir, rm, rn, ls etc)
<> 144:ef7eb2e8f9f7 102 };
<> 144:ef7eb2e8f9f7 103
<> 144:ef7eb2e8f9f7 104 } // namespace mbed
<> 144:ef7eb2e8f9f7 105
<> 144:ef7eb2e8f9f7 106 #endif