Yuan Cao / Mbed OS PushToGo-F429

PushToGo on STM32F429-Disco Board

Dependencies:   BSP_DISCO_F429ZI LCD_DISCO_F429ZI pushtogo usb

LCDConsole.h@8:f0455a1d4709, 2018-09-23 (annotated)

Committer:
caoyu@caoyuan9642-desktop.MIT.EDU
Date:
Sun Sep 23 02:31:28 2018 -0400
Revision:
8:f0455a1d4709
Parent:
0:084d1dae2ea1 
merge

Who changed what in which revision?

UserRevisionLine numberNew contents of line
caoyuan9642 0:084d1dae2ea1 1 /*
caoyuan9642 0:084d1dae2ea1 2 * LCDStreamHandle.h
caoyuan9642 0:084d1dae2ea1 3 *
caoyuan9642 0:084d1dae2ea1 4 * Created on: 2018Äê2ÔÂ25ÈÕ
caoyuan9642 0:084d1dae2ea1 5 * Author: caoyuan9642
caoyuan9642 0:084d1dae2ea1 6 */
caoyuan9642 0:084d1dae2ea1 7
caoyuan9642 0:084d1dae2ea1 8 #ifndef LCDCONSOLE_H_
caoyuan9642 0:084d1dae2ea1 9 #define LCDSTREAMHANDLE_H_
caoyuan9642 0:084d1dae2ea1 10
caoyuan9642 0:084d1dae2ea1 11 #include "mbed.h"
caoyuan9642 0:084d1dae2ea1 12 #include "LCD_DISCO_F429ZI.h"
caoyuan9642 0:084d1dae2ea1 13
caoyuan9642 0:084d1dae2ea1 14 class LCDConsole: public FileLike
caoyuan9642 0:084d1dae2ea1 15 {
caoyuan9642 0:084d1dae2ea1 16 protected:
caoyuan9642 0:084d1dae2ea1 17
caoyuan9642 0:084d1dae2ea1 18 static int* buffer; // The first 3 byets of each int contain its color, and last byte contain the content
caoyuan9642 0:084d1dae2ea1 19 static int *head, *tail;
caoyuan9642 0:084d1dae2ea1 20 static Mutex mutex;
caoyuan9642 0:084d1dae2ea1 21 static LCD_DISCO_F429ZI lcd;
caoyuan9642 0:084d1dae2ea1 22 static Thread thread;
caoyuan9642 0:084d1dae2ea1 23 static bool inited;
caoyuan9642 0:084d1dae2ea1 24 static int x0, y0, width, height;
caoyuan9642 0:084d1dae2ea1 25 static int textwidth, textheight, buffersize;
caoyuan9642 0:084d1dae2ea1 26 static Semaphore sem_update;
caoyuan9642 0:084d1dae2ea1 27
caoyuan9642 0:084d1dae2ea1 28 uint32_t color;
caoyuan9642 0:084d1dae2ea1 29
caoyuan9642 0:084d1dae2ea1 30 static void task_thread();
caoyuan9642 0:084d1dae2ea1 31 public:
caoyuan9642 0:084d1dae2ea1 32
caoyuan9642 0:084d1dae2ea1 33 static void init(int x0, int y0, int width, int height);
caoyuan9642 0:084d1dae2ea1 34 /** Redirects the stdout the stderr
caoyuan9642 0:084d1dae2ea1 35 * @param tolcd If true, stdout and stderr will be redirected to the console.
caoyuan9642 0:084d1dae2ea1 36 * If false, it will be redirected back to serial
caoyuan9642 0:084d1dae2ea1 37 */
caoyuan9642 0:084d1dae2ea1 38 static void redirect(bool tolcd);
caoyuan9642 0:084d1dae2ea1 39
caoyuan9642 0:084d1dae2ea1 40 static LCD_DISCO_F429ZI &getLCD()
caoyuan9642 0:084d1dae2ea1 41 {
caoyuan9642 0:084d1dae2ea1 42 return lcd;
caoyuan9642 0:084d1dae2ea1 43 }
caoyuan9642 0:084d1dae2ea1 44
caoyuan9642 0:084d1dae2ea1 45 // Can initialize multiple instances
caoyuan9642 0:084d1dae2ea1 46 LCDConsole(const char *name, uint32_t color);
caoyuan9642 0:084d1dae2ea1 47 virtual ~LCDConsole()
caoyuan9642 0:084d1dae2ea1 48 {
caoyuan9642 0:084d1dae2ea1 49 }
caoyuan9642 0:084d1dae2ea1 50
caoyuan9642 0:084d1dae2ea1 51 /** Read the contents of a file into a buffer
caoyuan9642 0:084d1dae2ea1 52 *
caoyuan9642 0:084d1dae2ea1 53 * Devices acting as FileHandles should follow POSIX semantics:
caoyuan9642 0:084d1dae2ea1 54 *
caoyuan9642 0:084d1dae2ea1 55 * * if no data is available, and non-blocking set return -EAGAIN
caoyuan9642 0:084d1dae2ea1 56 * * if no data is available, and blocking set, wait until some data is available
caoyuan9642 0:084d1dae2ea1 57 * * If any data is available, call returns immediately
caoyuan9642 0:084d1dae2ea1 58 *
caoyuan9642 0:084d1dae2ea1 59 * @param buffer The buffer to read in to
caoyuan9642 0:084d1dae2ea1 60 * @param size The number of bytes to read
caoyuan9642 0:084d1dae2ea1 61 * @return The number of bytes read, 0 at end of file, negative error on failure
caoyuan9642 0:084d1dae2ea1 62 */
caoyuan9642 0:084d1dae2ea1 63 virtual ssize_t read(void *buffer, size_t size);
caoyuan9642 0:084d1dae2ea1 64
caoyuan9642 0:084d1dae2ea1 65 /** Write the contents of a buffer to a file
caoyuan9642 0:084d1dae2ea1 66 *
caoyuan9642 0:084d1dae2ea1 67 * Devices acting as FileHandles should follow POSIX semantics:
caoyuan9642 0:084d1dae2ea1 68 *
caoyuan9642 0:084d1dae2ea1 69 * * if blocking, block until all data is written
caoyuan9642 0:084d1dae2ea1 70 * * if no data can be written, and non-blocking set, return -EAGAIN
caoyuan9642 0:084d1dae2ea1 71 * * if some data can be written, and non-blocking set, write partial
caoyuan9642 0:084d1dae2ea1 72 *
caoyuan9642 0:084d1dae2ea1 73 * @param buffer The buffer to write from
caoyuan9642 0:084d1dae2ea1 74 * @param size The number of bytes to write
caoyuan9642 0:084d1dae2ea1 75 * @return The number of bytes written, negative error on failure
caoyuan9642 0:084d1dae2ea1 76 */
caoyuan9642 0:084d1dae2ea1 77 virtual ssize_t write(const void *buffer, size_t size);
caoyuan9642 0:084d1dae2ea1 78
caoyuan9642 0:084d1dae2ea1 79 /** Move the file position to a given offset from from a given location
caoyuan9642 0:084d1dae2ea1 80 *
caoyuan9642 0:084d1dae2ea1 81 * @param offset The offset from whence to move to
caoyuan9642 0:084d1dae2ea1 82 * @param whence The start of where to seek
caoyuan9642 0:084d1dae2ea1 83 * SEEK_SET to start from beginning of file,
caoyuan9642 0:084d1dae2ea1 84 * SEEK_CUR to start from current position in file,
caoyuan9642 0:084d1dae2ea1 85 * SEEK_END to start from end of file
caoyuan9642 0:084d1dae2ea1 86 * @return The new offset of the file, negative error code on failure
caoyuan9642 0:084d1dae2ea1 87 */
caoyuan9642 0:084d1dae2ea1 88 virtual off_t seek(off_t offset, int whence = SEEK_SET);
caoyuan9642 0:084d1dae2ea1 89
caoyuan9642 0:084d1dae2ea1 90 /** Close a file
caoyuan9642 0:084d1dae2ea1 91 *
caoyuan9642 0:084d1dae2ea1 92 * @return 0 on success, negative error code on failure
caoyuan9642 0:084d1dae2ea1 93 */
caoyuan9642 0:084d1dae2ea1 94 virtual int close();
caoyuan9642 0:084d1dae2ea1 95 /** Check for poll event flags
caoyuan9642 0:084d1dae2ea1 96 * The input parameter can be used or ignored - the could always return all events,
caoyuan9642 0:084d1dae2ea1 97 * or could check just the events listed in events.
caoyuan9642 0:084d1dae2ea1 98 * Call is non-blocking - returns instantaneous state of events.
caoyuan9642 0:084d1dae2ea1 99 * Whenever an event occurs, the derived class should call the sigio() callback).
caoyuan9642 0:084d1dae2ea1 100 *
caoyuan9642 0:084d1dae2ea1 101 * @param events bitmask of poll events we're interested in - POLLIN/POLLOUT etc.
caoyuan9642 0:084d1dae2ea1 102 *
caoyuan9642 0:084d1dae2ea1 103 * @returns bitmask of poll events that have occurred.
caoyuan9642 0:084d1dae2ea1 104 */
caoyuan9642 0:084d1dae2ea1 105 virtual short poll(short events) const
caoyuan9642 0:084d1dae2ea1 106 {
caoyuan9642 0:084d1dae2ea1 107 // Possible default for real files
caoyuan9642 0:084d1dae2ea1 108 return POLLOUT;
caoyuan9642 0:084d1dae2ea1 109 }
caoyuan9642 0:084d1dae2ea1 110 /** Check if the file in an interactive terminal device
caoyuan9642 0:084d1dae2ea1 111 *
caoyuan9642 0:084d1dae2ea1 112 * @return True if the file is a terminal
caoyuan9642 0:084d1dae2ea1 113 * @return False if the file is not a terminal
caoyuan9642 0:084d1dae2ea1 114 * @return Negative error code on failure
caoyuan9642 0:084d1dae2ea1 115 */
caoyuan9642 0:084d1dae2ea1 116 virtual int isatty()
caoyuan9642 0:084d1dae2ea1 117 {
caoyuan9642 0:084d1dae2ea1 118 return true;
caoyuan9642 0:084d1dae2ea1 119 }
caoyuan9642 0:084d1dae2ea1 120 };
caoyuan9642 0:084d1dae2ea1 121
caoyuan9642 0:084d1dae2ea1 122 #endif /* LCDCONSOLE_H_ */
caoyuan9642 0:084d1dae2ea1 123