Add gpio control and related codes.

IoT.js-DCO-1.0-Signed-off-by: SaeHie Park saehie.park@samsung.com

cmake/config/arm-nuttx.cmake

@@ -26,6 +26,7 @@ CMAKE_FORCE_CXX_COMPILER(${EXTERNAL_CMAKE_CXX_COMPILER} GNU)
 
 set(NO_PTHREAD YES)
 set(BUILD_TO_LIB YES)
+set(DEVICE_DEPENDS "nuttx-stm32f4disco")
 
 set(FLAGS_COMMON -mcpu=cortex-m4
                  -mthumb

cmake/config/i686-linux.cmake

@@ -17,6 +17,8 @@ include(CMakeForceCompiler)
 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_PROCESSOR x86)
 
+set(DEVICE_DEPENDS "linux-x86")
+
 set(FLAGS_COMMON -D__LINUX__
                  -D__i686__
                  -fno-builtin)

cmake/config/x86_64-linux.cmake

@@ -17,6 +17,8 @@ include(CMakeForceCompiler)
 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_PROCESSOR x86_64)
 
+set(DEVICE_DEPENDS "linux-x86")
+
 set(FLAGS_COMMON -D__LINUX__
                  -D__x86_64__
                  -fno-builtin)

cmake/iotjs.cmake

@@ -14,7 +14,8 @@
 
 cmake_minimum_required(VERSION 2.8)
 
-file(GLOB LIB_IOTJS_SRC ${SRC_ROOT}/*.cpp)
+file(GLOB LIB_IOTJS_SRC ${SRC_ROOT}/*.cpp
+                        ${SRC_ROOT}/device/${DEVICE_DEPENDS}/*.cpp)
 
 set(LIB_IOTJS_CFLAGS ${CFLAGS})
 set(LIB_IOTJS_INCDIR ${TARGET_INC}

src/device/linux-x86/gpioctl_linux_x86.cpp

@@ -0,0 +1,37 @@
+/* Copyright 2015 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if defined(__LINUX__)
+
+#include "iotjs_def.h"
+#include "iotjs_objectwrap.h"
+#include "iotjs_module_gpioctl.h"
+
+
+namespace iotjs {
+
+/*
+ * Use default dummy for linux-x86
+ */
+
+GpioControl* GpioControl::Create(JObject& jgpioctl)
+{
+  return new GpioControl(jgpioctl);
+}
+
+
+} // namespace iotjs
+
+#endif // __NUTTX__

src/device/nuttx-stm32f4disco/gpioctl_nuttx_stm32f4disco.cpp

@@ -0,0 +1,111 @@
+/* Copyright 2015 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if defined(__NUTTX__)
+
+#include "iotjs_def.h"
+#include "iotjs_objectwrap.h"
+#include "iotjs_module_gpioctl.h"
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <nuttx/gpio.h>
+#include <sys/ioctl.h>
+
+
+namespace iotjs {
+
+
+class GpioControlInst : public GpioControl {
+public:
+  explicit GpioControlInst(JObject& jgpioctl);
+  virtual int Initialize(void);
+  virtual void Release(void);
+  virtual int PinMode(uint32_t portpin);
+  virtual int WritePin(uint32_t portpin, uint8_t data);
+  virtual int ReadPin(uint32_t portpin, uint8_t* pdata);
+};
+
+//-----------------------------------------------------------------------------
+
+GpioControl* GpioControl::Create(JObject& jgpioctl)
+{
+  return new GpioControlInst(jgpioctl);
+}
+
+
+GpioControlInst::GpioControlInst(JObject& jgpioctl)
+    : GpioControl(jgpioctl) {
+}
+
+
+int GpioControlInst::Initialize(void) {
+  if (_fd > 0 )
+    return IOTJS_GPIO_INUSE;
+
+  const char* devfilepath = "/dev/gpio";
+  _fd = open(devfilepath, O_RDWR);
+  DDDLOG("gpio> %s : fd(%d)", devfilepath, _fd);
+  return _fd;
+}
+
+void GpioControlInst::Release(void) {
+  if (_fd > 0) {
+    close(_fd);
+  }
+  _fd = 0;
+}
+
+
+int GpioControlInst::PinMode(uint32_t portpin) {
+  if (_fd > 0) {
+    struct gpioioctl_config_s cdata;
+    cdata.port = portpin;
+    return ioctl(_fd, GPIOIOCTL_CONFIG, (long unsigned int)&cdata);
+  }
+  return IOTJS_GPIO_NOTINITED;
+}
+
+
+int GpioControlInst::WritePin(uint32_t portpin, uint8_t data) {
+  if (_fd > 0) {
+    struct gpioioctl_write_s wdata;
+    wdata.port = portpin;
+    wdata.data = data;
+    return ioctl(_fd, GPIOIOCTL_WRITE, (long unsigned int)&wdata);
+  }
+  return IOTJS_GPIO_NOTINITED;
+}
+
+
+int GpioControlInst::ReadPin(uint32_t portpin, uint8_t* pdata) {
+  if (_fd > 0) {
+    struct gpioioctl_write_s wdata;
+    int ret;
+    wdata.port = portpin;
+    wdata.port = *pdata = 0;
+    ret = ioctl(_fd, GPIOIOCTL_READ, (long unsigned int)&wdata);
+    if (ret >= 0) {
+      *pdata = wdata.data;
+    }
+    return ret;
+  }
+  return IOTJS_GPIO_NOTINITED;
+}
+
+
+} // namespace iotjs
+
+#endif // __NUTTX__

src/iotjs.cpp

@@ -129,6 +129,8 @@ int Start(char* src) {
 
   JObject* process = InitModules();
 
+  SetProcessIotjs(process);
+
   // FIXME: this should be moved to seperate function
   {
     JObject argv;

src/iotjs_def.h

@@ -21,8 +21,10 @@
 #ifndef IOTJS_MAX_READ_BUFFER_SIZE
  #ifdef __NUTTX__
   #define IOTJS_MAX_READ_BUFFER_SIZE 1024
+  #define IOTJS_MAX_PATH_SIZE 120
  #else
   #define IOTJS_MAX_READ_BUFFER_SIZE 65535
+  #define IOTJS_MAX_PATH_SIZE PATH_MAX
  #endif
 #endif
 

src/iotjs_module.cpp

@@ -25,6 +25,7 @@
 #include "iotjs_module_stream.h"
 #include "iotjs_module_tcp.h"
 #include "iotjs_module_timer.h"
+#include "iotjs_module_gpioctl.h"
 
 
 namespace iotjs {

src/iotjs_module.h

@@ -34,7 +34,8 @@ typedef JObject* (*register_func)();
   F(PROCESS, Process, process) \
   F(STREAM, Stream, stream) \
   F(TCP, Tcp, tcp) \
-  F(TIMER, Timer, timer)
+  F(TIMER, Timer, timer) \
+  F(GPIOCTL, GpioCtl, gpioctl)
 
 
 #define ENUMDEF_MODULE_LIST(upper, Camel, lower) \