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| author | Joel Bodenmann <joel@unormal.org> | 2012-11-12 00:07:35 +0100 |
|---|---|---|
| committer | Joel Bodenmann <joel@unormal.org> | 2012-11-12 00:07:35 +0100 |
| commit | 5683a9058ea098f4f5c4183376879ad51b782b45 (patch) | |
| tree | 9dcb9db636505e56ce2259e7008e0ba5c0248908 /drivers/touchscreen/MCU/touchscreen_lld.c | |
| parent | 0e6ddaf7ff3481712230530f84668d278950fc1b (diff) | |
| download | uGFX-5683a9058ea098f4f5c4183376879ad51b782b45.tar.gz uGFX-5683a9058ea098f4f5c4183376879ad51b782b45.tar.bz2 uGFX-5683a9058ea098f4f5c4183376879ad51b782b45.zip | |
added MCU driver dummy - not implemented yet
Diffstat (limited to 'drivers/touchscreen/MCU/touchscreen_lld.c')
| -rw-r--r-- | drivers/touchscreen/MCU/touchscreen_lld.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/touchscreen/MCU/touchscreen_lld.c b/drivers/touchscreen/MCU/touchscreen_lld.c new file mode 100644 index 00000000..25a2398b --- /dev/null +++ b/drivers/touchscreen/MCU/touchscreen_lld.c @@ -0,0 +1,125 @@ +/*
+ 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/touchscreen/MCU/touchscreen_lld.c
+ * @brief Touchscreen Driver subsystem low level driver source.
+ *
+ * @addtogroup TOUCHSCREEN
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+#include "touchscreen.h"
+
+#if GFX_USE_TOUCHSCREEN /*|| defined(__DOXYGEN__)*/
+
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+#if !defined(__DOXYGEN__)
+ /* Local copy of the current touchpad driver */
+ static const TouchscreenDriver *tsDriver;
+
+#endif
+
+/**
+ * @brief Low level Touchscreen driver initialization.
+ *
+ * @param[in] ts The touchscreen driver struct
+ *
+ * @notapi
+ */
+void ts_lld_init(const TouchscreenDriver *ts) {
+ tsDriver = ts;
+
+ /* set pins to analog input */
+ palSetPadMode(ts->ts_yd_port, ts->ts_yd_pin, PAL_MODE_INPUT_ANALOG);
+ palSetPadMode(ts->ts_yu_port, ts->ts_yu_pin, PAL_MODE_INPUT_ANALOG);
+ palSetPadMode(ts->ts_xl_port, ts->ts_yl_pin, PAL_MODE_INPUT_ANALOG);
+ palSetPadMode(ts->ts_xr_port, ts->ts_xr_pin, PAL_MODE_INPUT_ANALOG);
+}
+
+
+/**
+ * @brief Reads a conversion from the touchscreen
+ *
+ * @param[in] cmd The command bits to send to the touchscreen
+ *
+ * @return The read value 12-bit right-justified
+ *
+ * @note This function only reads data, it is assumed that the pins are
+ * configured properly and the bus has been acquired beforehand
+ *
+ * @notapi
+ */
+uint16_t ts_lld_read_value(uint8_t cmd) {
+ return 0;
+}
+
+/**
+ * @brief 7-point median filtering code for touchscreen samples
+ *
+ * @note This is an internally used routine only.
+ *
+ * @notapi
+ */
+static void ts_lld_filter(void) {
+ return 0;
+}
+
+/**
+ * @brief Reads out the X direction.
+ *
+ * @note The samples are median filtered for greater noise reduction
+ *
+ * @notapi
+ */
+uint16_t ts_lld_read_x(void) {
+ return 0;
+}
+
+/**
+ * @brief Reads out the Y direction.
+ *
+ * @notapi
+ */
+uint16_t ts_lld_read_y(void) {
+ return 0;
+}
+
+/*
+ * @brief Checks if touchscreen is pressed or not.
+ *
+ * @return 1 if pressed, 0 otherwise
+ *
+ * @notapi
+ */
+uint8_t ts_lld_pressed(void) {
+ return 0;
+}
+
+
+#endif /* GFX_USE_TOUCHSCREEN */
+/** @} */
+
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