diff options
Diffstat (limited to 'drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_unknown.h')
-rw-r--r-- | drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_unknown.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_unknown.h b/drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_unknown.h new file mode 100644 index 00000000..2c23472a --- /dev/null +++ b/drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_unknown.h @@ -0,0 +1,97 @@ +/*
+ ChibiOS/RT - Copyright (C) 2012
+ Joel Bodenmann aka Tectu <joel@unormal.org>
+
+ This file is part of ChibiOS/GFX.
+
+ ChibiOS/GFX is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/GFX is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_unknown.h
+ * @brief GINPUT Touch low level driver source for the ADS7843 on some unknown board.
+ *
+ * @addtogroup GINPUT_MOUSE
+ * @{
+ */
+
+#ifndef _GINPUT_LLD_MOUSE_BOARD_H
+#define _GINPUT_LLD_MOUSE_BOARD_H
+
+/**
+ * @brief Initialise the board for the touch.
+ *
+ * @notapi
+ */
+static __inline void init_board(void) {
+ spiStart(TOUCH_SPIDriver, TOUCH_SPIConfig);
+}
+
+/**
+ * @brief Check whether the surface is currently touched
+ * @return TRUE if the surface is currently touched
+ *
+ * @notapi
+ */
+static __inline bool_t getpin_pressed(void) {
+ return !palReadPad(TOUCH_PressedPort, TOUCH_PressedPin);
+}
+
+/**
+ * @brief Aquire the bus ready for readings
+ *
+ * @notapi
+ */
+static __inline void aquire_bus(void) {
+ #if defined(SPI_USE_MUTUAL_EXCLUSION)
+ spiAcquireBus(TOUCH_SPIDriver);
+ #endif
+
+ GINPUT_TOUCH_SPI_PROLOGUE();
+ palClearPad(TOUCH_SPIConfig->ssport, TOUCH_SPIConfig->sspad);
+}
+
+/**
+ * @brief Release the bus after readings
+ *
+ * @notapi
+ */
+static __inline void release_bus(void) {
+ palSetPad(TOUCH_SPIConfig->ssport, TOUCH_SPIConfig->sspad);
+ GINPUT_TOUCH_SPI_EPILOGUE();
+
+ #if defined(SPI_USE_MUTUAL_EXCLUSION)
+ spiReleaseBus(tsDriver->spip);
+ #endif
+}
+
+/**
+ * @brief Read a value from touch controller
+ * @return The value read from the controller
+ *
+ * params[in] port The controller port to read.
+ *
+ * @notapi
+ */
+static __inline uint16_t read_value(uint16_t port) {
+ static uint8_t txbuf[3] = {0};
+ static uint8_t rxbuf[3] = {0};
+
+ txbuf[0] = cmd;
+ spiExchange(TOUCH_SPIDriver, 3, txbuf, rxbuf);
+ return (rxbuf[1] << 5) | (rxbuf[2] >> 3);
+}
+
+#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
+/** @} */
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