Hendrik Lipka
touch screen handler for the microchip AR1020
ar1020.h@1:264ad2a00fd9, 2011-02-22 (annotated)
- Committer:
- hlipka
- Date:
- Tue Feb 22 21:43:39 2011 +0000
- Revision:
- 1:264ad2a00fd9
- Parent:
- 0:cf4dd04052e3
- Child:
- 2:1a436d154c84
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| hlipka | 0:cf4dd04052e3 | 1 | /* |
| hlipka | 0:cf4dd04052e3 | 2 | * mbed AR1020 library |
| hlipka | 0:cf4dd04052e3 | 3 | * Copyright (c) 2010 Hendrik Lipka |
| hlipka | 0:cf4dd04052e3 | 4 | * |
| hlipka | 0:cf4dd04052e3 | 5 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| hlipka | 0:cf4dd04052e3 | 6 | * of this software and associated documentation files (the "Software"), to deal |
| hlipka | 0:cf4dd04052e3 | 7 | * in the Software without restriction, including without limitation the rights |
| hlipka | 0:cf4dd04052e3 | 8 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| hlipka | 0:cf4dd04052e3 | 9 | * copies of the Software, and to permit persons to whom the Software is |
| hlipka | 0:cf4dd04052e3 | 10 | * furnished to do so, subject to the following conditions: |
| hlipka | 0:cf4dd04052e3 | 11 | * |
| hlipka | 0:cf4dd04052e3 | 12 | * The above copyright notice and this permission notice shall be included in |
| hlipka | 0:cf4dd04052e3 | 13 | * all copies or substantial portions of the Software. |
| hlipka | 0:cf4dd04052e3 | 14 | * |
| hlipka | 0:cf4dd04052e3 | 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| hlipka | 0:cf4dd04052e3 | 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| hlipka | 0:cf4dd04052e3 | 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| hlipka | 0:cf4dd04052e3 | 18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| hlipka | 0:cf4dd04052e3 | 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| hlipka | 0:cf4dd04052e3 | 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| hlipka | 0:cf4dd04052e3 | 21 | * THE SOFTWARE. |
| hlipka | 0:cf4dd04052e3 | 22 | */ |
| hlipka | 0:cf4dd04052e3 | 23 | |
| hlipka | 0:cf4dd04052e3 | 24 | #ifndef __AR1020_H_ |
| hlipka | 0:cf4dd04052e3 | 25 | #define __AR1020_H_ |
| hlipka | 0:cf4dd04052e3 | 26 | |
| hlipka | 0:cf4dd04052e3 | 27 | #include "mbed.h" |
| hlipka | 0:cf4dd04052e3 | 28 | |
| hlipka | 0:cf4dd04052e3 | 29 | #include "touchpanel.h" |
| hlipka | 0:cf4dd04052e3 | 30 | #include "touchevent.h" |
| hlipka | 0:cf4dd04052e3 | 31 | |
| hlipka | 0:cf4dd04052e3 | 32 | class AR1020: public TouchPanel |
| hlipka | 0:cf4dd04052e3 | 33 | { |
| hlipka | 0:cf4dd04052e3 | 34 | public: |
| hlipka | 0:cf4dd04052e3 | 35 | /** |
| hlipka | 0:cf4dd04052e3 | 36 | requires |
| hlipka | 0:cf4dd04052e3 | 37 | SPI mode=1 (POL=0, PHA=1 [falling edge]) |
| hlipka | 0:cf4dd04052e3 | 38 | SPI frequency lower than 900 kHz (something about 100kHz preferred) |
| hlipka | 0:cf4dd04052e3 | 39 | @param spi the SPI object where the AR1020 is connected |
| hlipka | 0:cf4dd04052e3 | 40 | @params enable the pin name where /CS is connected |
| hlipka | 0:cf4dd04052e3 | 41 | */ |
| hlipka | 1:264ad2a00fd9 | 42 | AR1020(SPI *spi, PinName enable, PinName sqi, PinName power, bool swapX=false, bool swapY=false, bool swapXY=false); |
| hlipka | 1:264ad2a00fd9 | 43 | AR1020(PinName mosi, PinName miso, PinName clk, PinName enable, PinName sqi, PinName power, bool swapX=false, bool swapY=false, bool swapXY=false); |
| hlipka | 0:cf4dd04052e3 | 44 | ~AR1020(); |
| hlipka | 0:cf4dd04052e3 | 45 | virtual void init(); |
| hlipka | 0:cf4dd04052e3 | 46 | virtual int x(); |
| hlipka | 0:cf4dd04052e3 | 47 | virtual int y(); |
| hlipka | 0:cf4dd04052e3 | 48 | virtual int pen(); |
| hlipka | 0:cf4dd04052e3 | 49 | virtual void read(); |
| hlipka | 0:cf4dd04052e3 | 50 | void calibrate(); |
| hlipka | 0:cf4dd04052e3 | 51 | private: |
| hlipka | 0:cf4dd04052e3 | 52 | int cmd(char cmd,char* data, int len); |
| hlipka | 0:cf4dd04052e3 | 53 | int readCalibResponse(); |
| hlipka | 0:cf4dd04052e3 | 54 | int readByte(); |
| hlipka | 0:cf4dd04052e3 | 55 | void writeByte(char byte); |
| hlipka | 0:cf4dd04052e3 | 56 | |
| hlipka | 0:cf4dd04052e3 | 57 | SPI *_spi; |
| hlipka | 0:cf4dd04052e3 | 58 | DigitalOut *_enable; |
| hlipka | 0:cf4dd04052e3 | 59 | InterruptIn *_irq; |
| hlipka | 0:cf4dd04052e3 | 60 | DigitalIn *_sqi; |
| hlipka | 0:cf4dd04052e3 | 61 | int _x, _y, _pen; |
| hlipka | 0:cf4dd04052e3 | 62 | |
| hlipka | 0:cf4dd04052e3 | 63 | DigitalOut *_led; |
| hlipka | 1:264ad2a00fd9 | 64 | DigitalOut* _power; |
| hlipka | 0:cf4dd04052e3 | 65 | |
| hlipka | 0:cf4dd04052e3 | 66 | DigitalOut *_mosi; |
| hlipka | 0:cf4dd04052e3 | 67 | DigitalIn *_miso; |
| hlipka | 0:cf4dd04052e3 | 68 | DigitalOut *_clk; |
| hlipka | 0:cf4dd04052e3 | 69 | |
| hlipka | 0:cf4dd04052e3 | 70 | bool _oldPen; |
| hlipka | 0:cf4dd04052e3 | 71 | TouchEvent _event; |
| hlipka | 0:cf4dd04052e3 | 72 | }; |
| hlipka | 0:cf4dd04052e3 | 73 | |
| hlipka | 0:cf4dd04052e3 | 74 | |
| hlipka | 0:cf4dd04052e3 | 75 | |
| hlipka | 0:cf4dd04052e3 | 76 | #endif |
AR1020