/* * 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 */