1 files changed, 163 insertions, 0 deletions
diff --git a/nuttx/configs/hymini-stm32v/src/up_ts.c b/nuttx/configs/hymini-stm32v/src/up_ts.c
new file mode 100644
index 000000000..6c4decf7c
--- /dev/null
+++ b/nuttx/configs/hymini-stm32v/src/up_ts.c
@@ -0,0 +1,163 @@
+/************************************************************************************
+ * configs/hymini-stm32v/src/up_ts.c
+ * arch/arm/src/board/up_ts.c
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *           Laurent Latil <laurent@latil.nom.fr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/spi.h>
+#include <nuttx/arch.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include "stm32.h"
+#include "stm32_internal.h"
+#include "hymini_stm32v-internal.h"
+
+#include <nuttx/input/ads7843e.h>
+
+#if !defined(CONFIG_STM32_SPI1)
+# error CONFIG_STM32_SPI1 must be defined to use the ADS7843 on this board
+#endif
+
+static int hymini_ts_irq_attach(FAR struct ads7843e_config_s *state, xcpt_t isr);
+static void hymini_ts_irq_enable(FAR struct ads7843e_config_s *state,
+    bool enable);
+static void hymini_ts_irq_clear(FAR struct ads7843e_config_s *state);
+static bool hymini_ts_busy(FAR struct ads7843e_config_s *state);
+static bool hymini_ts_pendown(FAR struct ads7843e_config_s *state);
+
+/************************************************************************************
+ * Private Data
+ ************************************************************************************/
+
+static FAR struct ads7843e_config_s ts_cfg =
+{
+  .frequency = CONFIG_ADS7843E_FREQUENCY,
+
+  .attach = hymini_ts_irq_attach,
+  .enable=hymini_ts_irq_enable,
+  .clear=hymini_ts_irq_clear,
+  .busy = hymini_ts_busy,
+  .pendown=hymini_ts_pendown
+};
+
+static xcpt_t tc_isr;
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/* Attach the ADS7843E interrupt handler to the GPIO interrupt */
+static int hymini_ts_irq_attach(FAR struct ads7843e_config_s *state, xcpt_t isr)
+{
+  ivdbg("hymini_ts_irq_attach\n");
+
+  tc_isr = isr;
+  stm32_gpiosetevent(GPIO_TS_IRQ, true, true, true, isr);
+  return OK;
+}
+
+/* Enable or disable the GPIO interrupt */
+static void hymini_ts_irq_enable(FAR struct ads7843e_config_s *state,
+    bool enable)
+{
+  illvdbg("%d\n", enable);
+
+  stm32_gpiosetevent(GPIO_TS_IRQ, true, true, true, enable? tc_isr:NULL);
+}
+
+/* Acknowledge/clear any pending GPIO interrupt */
+static void hymini_ts_irq_clear(FAR struct ads7843e_config_s *state)
+{
+  // FIXME  Nothing to do ?
+}
+
+/* As the busy line is not connected, we just wait a little bit here */
+static bool hymini_ts_busy(FAR struct ads7843e_config_s *state)
+{
+  up_mdelay(50);
+  return false;
+}
+
+/* Return the state of the pen down GPIO input */
+static bool hymini_ts_pendown(FAR struct ads7843e_config_s *state)
+{
+  bool pin_value = stm32_gpioread(GPIO_TS_IRQ);
+  return !pin_value;
+}
+
+/****************************************************************************
+ * Name: arch_tcinitialize()
+ *
+ * Description:
+ *   Perform architecture-specific initialization of the touchscreen.
+ *   This function must be called directly from application.
+ *
+ ****************************************************************************/
+
+int arch_tcinitialize(int minor)
+{
+  FAR struct spi_dev_s *dev;
+
+  idbg("arch_tcinitialize: minor %d\n", minor);
+
+  dev = up_spiinitialize(1);
+  if (!dev)
+    {
+      idbg("arch_tcinitialize: Failed to initialize SPI bus\n");
+      return -ENODEV;
+    }
+
+  /* Configure the PIO interrupt */
+
+  stm32_configgpio(GPIO_TS_IRQ);
+
+  return ads7843e_register(dev, &ts_cfg, minor);
+}
+
+/****************************************************************************
+ * Name: arch_tcuninitialize()
+ *
+ * Description:
+ *   Perform architecture-specific un-initialization of the touchscreen
+ *   hardware.  This function must be called directly from application.
+ *
+ ****************************************************************************/
+
+void arch_tcuninitialize(void)
+{
+  /* FIXME What can/should we do here ? */
+}