Diff: SPI_STMPE610.cpp

Revision:

3:34d8706e1614

Parent:

2:4b85d308f1ef

Child:

4:8c3681dc676f

--- a/SPI_STMPE610.cpp	Fri Oct 31 01:43:18 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,223 +0,0 @@
-/* mbed SPI_STMPE610.cpp to test adafruit 2.8" TFT LCD shiled w Touchscreen
- * Copyright (c) 2014 Motoo Tanaka @ Design Methodology Lab
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
- /*
-  * Note: Since the interrupt siganl of the shield was not connected
-  * to an interrupt pin on my frdm-kl25z, I just used polling mode.
-  */
-  
-#include "SPI_STMPE610.h"
-
-/* some definitions here */
-#define REG_CHIP_ID       0x00
-#define REG_CHIP_ID_MSB   0x00
-#define REG_CHIP_ID_LSB   0x01
-
-#define REG_ID_VER        0x02
-#define REG_SYS_CTRL1     0x03
-#define REG_SYS_CTRL1_RESET 0x02
-
-#define REG_SYS_CTRL2     0x04
-#define REG_SPI_CFG       0x08
-#define REG_INT_CTRL      0x09
-#define REG_INT_CTRL_POL_HIGH 0x04
-#define REG_INT_CTRL_POL_LOW  0x00
-#define REG_INT_CTRL_EDGE     0x02
-#define REG_INT_CTRL_LEVEL    0x00
-#define REG_INT_CTRL_ENABLE   0x01
-#define REG_INT_CTRL_DISABLE  0x00
-
-#define REG_INT_EN        0x0A
-#define REG_INT_EN_TOUCHDET  0x01
-#define REG_INT_EN_FIFOTH    0x02
-#define REG_INT_EN_FIFOOF    0x04
-#define REG_INT_EN_FIFOFULL  0x08
-#define REG_INT_EN_FIFOEMPTY 0x10
-#define REG_INT_EN_ADC       0x40
-
-#define REG_INT_STA       0x0B
-#define REG_INT_STA_TOUCHDET 0x01
-
-#define REG_GPIO_EN       0x0C
-#define REG_GPIO_INT_STA  0x0D
-#define REG_ADC_INT_EN    0x0E
-#define REG_ADC_INT_STA   0x0F
-#define REG_GPIO_SET_PIN  0x10
-#define REG_GPIO_CLR_PIN  0x11
-#define REG_GPIO_MP_STA   0x12
-#define REG_GPIO_DIR      0x13
-#define REG_GPIO_ED       0x14
-#define REG_GPIO_RE       0x15
-#define REG_GPIO_FE       0x16
-#define REG_GPIO_AF       0x17
-#define REG_ADC_CTRL1     0x20
-#define REG_ADC_CTRL1_12BIT 0x08
-#define REG_ADC_CTRL1_10BIT 0x00
-
-#define REG_ADC_CTRL2     0x21
-#define REG_ADC_CTRL2_1_625MHZ 0x00
-#define REG_ADC_CTRL2_3_25MHZ  0x01
-#define REG_ADC_CTRL2_6_5MHZ   0x02
-
-#define REG_ADC_CAPT      0x22
-#define REG_ADC_DATA_CH0  0x30
-#define REG_ADC_DATA_CH1  0x32
-#define REG_ADC_DATA_CH4  0x38
-#define REG_ADC_DATA_CH5  0x3A
-#define REG_ADC_DATA_CH6  0x3C
-#define REG_ADC_DATA_CH7  0x3E
-#define REG_TSC_CTRL      0x40
-#define REG_TSC_CTRL_EN     0x01
-#define REG_TSC_CTRL_XYZ    0x00
-#define REG_TSC_CTRL_XY     0x02
-
-#define REG_TSC_CFG       0x41
-#define REG_TSC_CFG_1SAMPLE      0x00
-#define REG_TSC_CFG_2SAMPLE      0x40
-#define REG_TSC_CFG_4SAMPLE      0x80
-#define REG_TSC_CFG_8SAMPLE      0xC0
-#define REG_TSC_CFG_DELAY_10US   0x00
-#define REG_TSC_CFG_DELAY_50US   0x08
-#define REG_TSC_CFG_DELAY_100US  0x10
-#define REG_TSC_CFG_DELAY_500US  0x18
-#define REG_TSC_CFG_DELAY_1MS    0x20
-#define REG_TSC_CFG_DELAY_5MS    0x28
-#define REG_TSC_CFG_DELAY_10MS   0x30
-#define REG_TSC_CFG_DELAY_50MS   0x38
-#define REG_TSC_CFG_SETTLE_10US  0x00
-#define REG_TSC_CFG_SETTLE_100US 0x01
-#define REG_TSC_CFG_SETTLE_500US 0x02
-#define REG_TSC_CFG_SETTLE_1MS   0x03
-#define REG_TSC_CFG_SETTLE_5MS   0x04
-#define REG_TSC_CFG_SETTLE_10MS  0x05
-#define REG_TSC_CFG_SETTLE_50MS  0x06
-#define REG_TSC_CFG_SETTLE_100MS 0x07
-
-#define REG_WDW_TR_X      0x42
-#define REG_WDW_TR_Y      0x44
-#define REG_WDW_BL_X      0x46
-#define REG_WDW_BL_Y      0x48
-#define REG_FIFO_TH       0x4A
-#define REG_FIFO_STA      0x4B
-#define REG_FIFO_SIZE     0x4C
-#define REG_TSC_DATA_X    0x4D
-#define REG_TSC_DATA_Y    0x4F
-#define REG_TSC_DATA_Z    0x51
-#define REG_TSC_DATA_XYZ  0x52
-#define REG_TSC_FRACT_XYZ 0x56
-#define REG_TSC_DATA      0x57
-#define REG_TSC_I_DRIVE   0x58
-#define REG_TSC_SHIELD    0x59
-
-SPI_STMPE610::SPI_STMPE610(PinName mosi, PinName miso, PinName sclk, PinName cs) :
-        m_spi(mosi, miso, sclk), m_cs(cs) {
-    // activate the peripheral
-    m_cs = 0 ;
-    _mode = 0 ;
-    m_spi.frequency(1000000) ;
-    m_spi.format(8, 0) ;
-    write8(REG_SYS_CTRL1, REG_SYS_CTRL1_RESET) ;
-    wait(0.1) ;
-    write8(REG_SYS_CTRL2, 0x00) ; // turn on clocks
-    write8(REG_TSC_CFG,
-          REG_TSC_CFG_4SAMPLE 
-        | REG_TSC_CFG_DELAY_100US
-        | REG_TSC_CFG_SETTLE_1MS ) ;
-        
-    write8(REG_TSC_CTRL, REG_TSC_CTRL_XYZ | REG_TSC_CTRL_EN) ;   
-    m_cs = 1 ;
-}
-
-SPI_STMPE610::~SPI_STMPE610() { }
-
-void SPI_STMPE610::readRegs(int addr, uint8_t * data, int len) {
-    m_cs = 0 ;
-
-    for (int i = 0 ; i < len ; i++ ) {    
-       m_spi.write((addr+i)|0x80) ;  // spacify address to read
-       data[i] = m_spi.write((addr+i)|0x80) ; 
-    } 
-    m_spi.write(0x00) ; // to terminate read mode
-    m_cs = 1 ;
-}
-
-void SPI_STMPE610::writeRegs(uint8_t * data, int len) {
-   m_cs = 0 ;
-   for (int i = 0 ; i < len ; i++ ) {
-      m_spi.write(data[i]) ;
-   }
-   m_cs = 1 ;
-}
-
-void SPI_STMPE610::write8(int addr, uint8_t data8)
-{
-    uint8_t data[2] ;
-    data[0] = addr ;
-    data[1] = data8 ;
-    writeRegs(data, 2) ;
-}
-
-uint8_t SPI_STMPE610::read8(int addr)
-{
-    uint8_t data[1] ;    
-    readRegs(addr, data, 1) ;
-    return( data[0] ) ;
-}
-
-void SPI_STMPE610::write16(int addr, uint16_t data16)
-{
-    uint8_t data[3] ;
-    data[0] = addr ;
-    data[1] = (data16 >> 8) & 0xFF ;
-    data[2] = data16 & 0xFF ;
-    writeRegs(data, 3) ;
-}
-
-uint16_t SPI_STMPE610::read16(int addr)
-{
-    uint8_t data[2] ;
-    uint16_t value = 0 ;
-    readRegs(addr, data, 2) ;
-    value = (data[0] << 8) | data[1] ;
-    return( value ) ;
-}
-
-int SPI_STMPE610::getRAWPoint(uint16_t *x, uint16_t *y, uint16_t *z)
-{
-    uint8_t data[8], touched = 0 ;
-    data[0] = REG_TSC_CTRL ;
-    data[1] = REG_TSC_CTRL_EN  ; 
-    writeRegs(data, 2) ;
-    wait(0.01) ;
-     
-    readRegs(REG_TSC_CTRL, data, 1) ;
-    touched = data[0] & 0x80 ;
-    if (touched) { //Touch Detected
-       readRegs(REG_TSC_DATA_X, data,5) ;
-        *x = (data[0] << 8) | data[1] ;
-        *y = (data[2] << 8) | data[3] ;
-        *z = data[4] ;
-    } else {
-        *x = 0 ;
-        *y = 0 ;
-        *z = 0 ;
-    }
-    
-    data[0] = 0x4B ;
-    data[1] = 0x01 ;
-    writeRegs(data, 2)  ; // clear FIFO
- 
-    data[0] = REG_TSC_CTRL ;
-    data[1] = 0x00 ; // disable TSC 
-    writeRegs(data, 2) ;
-    
-    return( touched & (*x || *y || *z)) ;
-}