diff options
Diffstat (limited to 'drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_firebull_stm32f103.h')
-rw-r--r-- | drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_firebull_stm32f103.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_firebull_stm32f103.h b/drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_firebull_stm32f103.h new file mode 100644 index 00000000..bc018b89 --- /dev/null +++ b/drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_firebull_stm32f103.h @@ -0,0 +1,103 @@ +/*
+ ChibiOS/GFX - 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_firebull_stm32f103.h
+ * @brief GINPUT ouch low level driver source for the ADS7843 on the FireBull STM32F103-FB board.
+ *
+ * @defgroup Mouse Mouse
+ * @ingroup GINPUT
+ * @{
+ */
+
+#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,
+};
+
+/**
+ * @brief Initialise the board for the touch.
+ *
+ * @notapi
+ */
+static __inline void init_board(void) {
+ spiStart(&SPID1, &spicfg);
+}
+
+/**
+ * @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(GPIOC, 4));
+}
+/**
+ * @brief Aquire the bus ready for readings
+ *
+ * @notapi
+ */
+static __inline void aquire_bus(void) {
+ spiAcquireBus(&SPID1);
+ //TOUCHSCREEN_SPI_PROLOGUE();
+ palClearPad(GPIOC, 6);
+}
+
+/**
+ * @brief Release the bus after readings
+ *
+ * @notapi
+ */
+static __inline void release_bus(void) {
+ palSetPad(GPIOC, 6);
+ spiReleaseBus(&SPID1);
+ //TOUCHSCREEN_SPI_EPILOGUE();
+}
+
+/**
+ * @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};
+ 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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