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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.org/license.html
*/
/*
* Board file for HY-MiniSTM32V board from HAOYU (China).
* www.powermcu.com or www.hotmcu.com.
*/
/*
* NOTE: In order to make this work you need to set:
* STM32_SPI_USE_SPI1 TRUE in mcuconf.h
* HAL_USE_SPI TRUE in halconf.h
*/
#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
// 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 const SPIConfig spicfg = {
0,
GPIOA,
GPIOA_TP_CS,
SPI_CR1_BR_1 | SPI_CR1_BR_0, /* Might be tweaked for faster transfer. */
};
/*
* ADS7843 (clone chip) is connected to SPI1 w/o remap
* TP_CS PA4
* SPI_SCK PA5
* SPI_MISO PA6
* SPI_MOSI PA7
* TP_IRQ PB6
*/
static gBool init_board(GMouse* m, unsigned driverinstance) {
(void) m;
(void) driverinstance;
palSetPadMode(GPIOA, 4, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOA, 5, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
palSetPadMode(GPIOA, 6, PAL_MODE_INPUT_PULLUP);
palSetPadMode(GPIOA, 7, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
palSetPadMode(GPIOB, 6, PAL_MODE_INPUT);
spiStart(&SPID1, &spicfg);
return true;
}
/*
* PB6 is connected to TP_IRQ (low active).
*/
static GFXINLINE gBool getpin_pressed(GMouse* m) {
(void)m;
return (!palReadPad(GPIOB, 6));
}
/*
* PA4 is connected to TP_CS (low active):
*/
static GFXINLINE void aquire_bus(GMouse* m) {
(void)m;
spiAcquireBus(&SPID1);
palClearPad(GPIOA, 4);
}
static GFXINLINE void release_bus(GMouse* m) {
(void)m;
palSetPad(GPIOA, 4);
spiReleaseBus(&SPID1);
}
static GFXINLINE uint16_t read_value(GMouse* m, uint16_t port) {
(void)m;
static uint8_t txbuf[3] = {0};
static uint8_t rxbuf[3] = {0};
uint16_t ret;
txbuf[0] = port;
spiExchange(&SPID1, 3, txbuf, rxbuf);
ret = (rxbuf[1] << 5) | (rxbuf[2] >> 3);
return ret;
}
#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
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