73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/*
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ChibiOS-LCD-Driver - Copyright (C) 2012
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS-LCD-Driver.
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ChibiOS-LCD-Driver is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS-LCD-Driver is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _XPT2046_H
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#define _XPT2046_H
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#include "ch.h"
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#include "hal.h"
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#define TP_CS_HIGH palSetPad(TP_CS_PORT, TP_CS)
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#define TP_CS_LOW palClearPad(TP_CS_PORT, TP_CS)
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__inline uint16_t lld_tpReadX(void) {
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uint8_t txbuf[1];
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uint8_t rxbuf[2];
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uint16_t x;
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txbuf[0] = 0xd0;
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TP_CS_LOW;
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spiSend(&SPID1, 1, txbuf);
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spiReceive(&SPID1, 2, rxbuf);
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TP_CS_HIGH;
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x = rxbuf[0] << 4;
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x |= rxbuf[1] >> 4;
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return x;
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}
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__inline uint16_t lld_tpReadY(void) {
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uint8_t txbuf[1];
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uint8_t rxbuf[2];
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uint16_t y;
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txbuf[0] = 0x90;
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TP_CS_LOW;
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spiSend(&SPID1, 1, txbuf);
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spiReceive(&SPID1, 2, rxbuf);
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TP_CS_HIGH;
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y = rxbuf[0] << 4;
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y |= rxbuf[1] >> 4;
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return y;
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}
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__inline uint16_t lld_tpReadZ(void) {
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/* ToDo */
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return 0;
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}
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#endif /* _XPT2046_H */
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