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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.io/license.html
*/
/**
* @file boards/addons/ginput/touch/ADS7843/ginput_lld_mouse_board_olimex_stm32_e407.h
* @brief GINPUT Touch low level driver source for the ADS7843 on an Olimex STM32E407.
*
* @note This file contains a mix of hardware specific and operating system specific
* code. You will need to change it for your CPU and/or operating system.
*/
#ifndef _GINPUT_LLD_MOUSE_BOARD_H
#define _GINPUT_LLD_MOUSE_BOARD_H
// Resolution and Accuracy Settings
#define GMOUSE_ADS7843_PEN_CALIBRATE_ERROR 8
#define GMOUSE_ADS7843_PEN_CLICK_ERROR 6
#define GMOUSE_ADS7843_PEN_MOVE_ERROR 4
#define GMOUSE_ADS7843_FINGER_CALIBRATE_ERROR 14
#define GMOUSE_ADS7843_FINGER_CLICK_ERROR 18
#define GMOUSE_ADS7843_FINGER_MOVE_ERROR 14
static const SPIConfig spicfg = {
0,
GPIOG,
10,
/* SPI_CR1_BR_2 |*/ SPI_CR1_BR_1 | SPI_CR1_BR_0,
};
// How much extra data to allocate at the end of the GMouse structure for the board's use
#define GMOUSE_ADS7843_BOARD_DATA_SIZE 0
static gBool init_board(GMouse* m, unsigned driverinstance) {
(void) m;
if (driverinstance)
return gFalse;
spiStart(&SPID2, &spicfg);
return gTrue;
}
static GFXINLINE gBool getpin_pressed(GMouse* m) {
(void) m;
return (!palReadPad(GPIOG, 0));
}
static GFXINLINE void aquire_bus(GMouse* m) {
(void) m;
spiAcquireBus(&SPID2);
//TOUCHSCREEN_SPI_PROLOGUE();
palClearPad(GPIOG, 10);
}
static GFXINLINE void release_bus(GMouse* m) {
(void) m;
palSetPad(GPIOG, 10);
spiReleaseBus(&SPID2);
//TOUCHSCREEN_SPI_EPILOGUE();
}
static GFXINLINE gU16 read_value(GMouse* m, gU16 port) {
static gU8 txbuf[3] = {0};
static gU8 rxbuf[3] = {0};
(void) m;
txbuf[0] = port;
spiExchange(&SPID2, 3, txbuf, rxbuf);
return ((gU16)rxbuf[1] << 5) | (rxbuf[2] >> 3);
}
#endif /* _GINPUT_LLD_MOUSE_BOARD_H */