99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.org/license.html
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*/
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/*
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* Board file for HY-MiniSTM32V board from HAOYU (China).
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* www.powermcu.com or www.hotmcu.com.
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*/
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/*
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* NOTE: In order to make this work you need to set:
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* STM32_SPI_USE_SPI1 TRUE in mcuconf.h
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* HAL_USE_SPI TRUE in halconf.h
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*/
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#ifndef _GINPUT_LLD_MOUSE_BOARD_H
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#define _GINPUT_LLD_MOUSE_BOARD_H
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// Resolution and Accuracy Settings
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#define GMOUSE_ADS7843_PEN_CALIBRATE_ERROR 8
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#define GMOUSE_ADS7843_PEN_CLICK_ERROR 6
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#define GMOUSE_ADS7843_PEN_MOVE_ERROR 4
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#define GMOUSE_ADS7843_FINGER_CALIBRATE_ERROR 14
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#define GMOUSE_ADS7843_FINGER_CLICK_ERROR 18
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#define GMOUSE_ADS7843_FINGER_MOVE_ERROR 14
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// How much extra data to allocate at the end of the GMouse structure for the board's use
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#define GMOUSE_ADS7843_BOARD_DATA_SIZE 0
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static const SPIConfig spicfg = {
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0,
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GPIOA,
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GPIOA_TP_CS,
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SPI_CR1_BR_1 | SPI_CR1_BR_0, /* Might be tweaked for faster transfer. */
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};
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/*
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* ADS7843 (clone chip) is connected to SPI1 w/o remap
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* TP_CS PA4
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* SPI_SCK PA5
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* SPI_MISO PA6
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* SPI_MOSI PA7
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* TP_IRQ PB6
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*/
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static bool_t init_board(GMouse* m, unsigned driverinstance) {
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(void) m;
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(void) driverinstance;
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palSetPadMode(GPIOA, 4, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 5, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
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palSetPadMode(GPIOA, 6, PAL_MODE_INPUT_PULLUP);
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palSetPadMode(GPIOA, 7, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
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palSetPadMode(GPIOB, 6, PAL_MODE_INPUT);
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spiStart(&SPID1, &spicfg);
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return true;
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}
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/*
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* PB6 is connected to TP_IRQ (low active).
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*/
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static inline bool_t getpin_pressed(GMouse* m) {
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(void)m;
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return (!palReadPad(GPIOB, 6));
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}
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/*
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* PA4 is connected to TP_CS (low active):
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*/
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static inline void aquire_bus(GMouse* m) {
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(void)m;
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spiAcquireBus(&SPID1);
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palClearPad(GPIOA, 4);
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}
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static inline void release_bus(GMouse* m) {
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(void)m;
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palSetPad(GPIOA, 4);
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spiReleaseBus(&SPID1);
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}
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static inline uint16_t read_value(GMouse* m, uint16_t port) {
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(void)m;
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static uint8_t txbuf[3] = {0};
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static uint8_t rxbuf[3] = {0};
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uint16_t ret;
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txbuf[0] = port;
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spiExchange(&SPID1, 3, txbuf, rxbuf);
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ret = (rxbuf[1] << 5) | (rxbuf[2] >> 3);
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return ret;
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}
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#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
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