ZKIT-ARM-1769 support for ADC and DAC from Rashid

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5723 42af7a65-404d-4744-a932-0658087f49c3

configs/zkit-arm-1769/src/Makefile

@@ -51,6 +51,14 @@ ifeq ($(CONFIG_USBMSC),y)
 CSRCS += up_usbmsc.c
 endif
 
+ifeq ($(CONFIG_ADC),y)
+CSRCS += up_adc.c
+endif
+
+ifeq ($(CONFIG_DAC),y)
+CSRCS += up_dac.c
+endif
+
 ifeq ($(CONFIG_CAN),y)
 CSRCS += up_can.c
 endif

configs/zkit-arm-1769/src/up_adc.c

@@ -0,0 +1,123 @@
+/************************************************************************************
+ * configs/zkit-arm-1769/src/up_adc.c
+ * arch/arm/src/board/up_adc.c
+ *
+ *   Copyright (C) 2013 Zilogic Systems. All rights reserved.
+ *   Author: Kannan <code@nuttx.org>
+ *
+ * Based on configs/stm3220g-eval/src/up_adc.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/analog/adc.h>
+#include <arch/board/board.h>
+
+#include "chip.h"
+#include "up_arch.h"
+
+#include "lpc17_pwm.h"
+#include "zkitarm_internal.h"
+
+#ifdef CONFIG_ADC
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Data
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: adc_devinit
+ *
+ * Description:
+ *   All LPC17 architectures must provide the following interface to work with
+ *   examples/adc.
+ *
+ ************************************************************************************/
+
+int adc_devinit(void)
+{
+  static bool initialized = false;
+  struct adc_dev_s *adc;
+  int ret;
+
+  /* Check if we have already initialized */
+
+  if (!initialized)
+    {
+      /* Call lpc17_adcinitialize() to get an instance of the ADC interface */
+
+      adc = lpc17_adcinitialize();
+      if (adc == NULL)
+        {
+          adbg("ERROR: Failed to get ADC interface\n");
+          return -ENODEV;
+        }
+
+      /* Register the ADC driver at "/dev/adc0" */
+
+      ret = adc_register("/dev/adc0", adc);
+      if (ret < 0)
+        {
+          adbg("adc_register failed: %d\n", ret);
+          return ret;
+        }
+
+      /* Now we are initialized */
+
+      initialized = true;
+    }
+
+  return OK;
+}
+
+#endif /* CONFIG_ADC */

configs/zkit-arm-1769/src/up_dac.c

@@ -0,0 +1,100 @@
+/************************************************************************************
+ * configs/zkit-arm-1769/src/up_dac.c
+ * arch/arm/src/board/up_dac.c
+ *
+ *   Copyright (C) 2013 Zilogic Systems. All rights reserved.
+ *   Author: Kannan <code@nuttx.org>
+ *
+ * Based on configs/stm3220g-eval/src/up_dac.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/analog/dac.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+#include "zkitarm_internal.h"
+
+#ifdef CONFIG_DAC
+
+/************************************************************************************
+ * Name: dac_devinit
+ *
+ * Description:
+ *   All LPC17xx architectures must provide the following interface to work with
+ *   examples/diag.
+ *
+ ************************************************************************************/
+
+int dac_devinit(void)
+{
+  static bool initialized = false;
+  struct dac_dev_s *dac;
+  int ret;
+
+  if (!initialized)
+  {
+    /* Call lpc17_dacinitialize() to get an instance of the dac interface */
+
+    dac = lpc17_dacinitialize();
+    if (dac == NULL)
+      {
+        adbg("ERROR: Failed to get dac interface\n");
+        return -ENODEV;
+      }
+
+    ret = dac_register("/dev/dac0", dac);
+    if (ret < 0)
+      {
+        adbg("dac_register failed: %d\n", ret);
+        return ret;
+      }
+
+    initialized = true;
+  }
+
+  return OK;
+}
+
+#endif /* CONFIG_DAC */