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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
*/
#ifndef _GINPUT_LLD_MOUSE_BOARD_H
#define _GINPUT_LLD_MOUSE_BOARD_H
static const SPIConfig spicfg = {
NULL,
GPIOC,
6,
/* SPI_CR1_BR_2 |*/ SPI_CR1_BR_1 | SPI_CR1_BR_0,
};
static inline void init_board(void)
{
spiStart(&SPID1, &spicfg);
}
static inline bool_t getpin_pressed(void)
{
return (!palReadPad(GPIOC, 4));
}
static inline void aquire_bus(void)
{
spiAcquireBus(&SPID1);
palClearPad(GPIOC, 6);
}
static inline void release_bus(void)
{
palSetPad(GPIOC, 6);
spiReleaseBus(&SPID1);
}
static inline uint16_t read_value(uint16_t port)
{
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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