Port from Avnet's Internet Of Things full WiGo demo: SmartConfig - WebServer - Exosite - Android sensor Fusion App

Dependencies:   mbed CC3000_Hostdriver TEMT6200 TSI Wi-Go_eCompass_Lib_V3 WiGo_BattCharger

Fork of CC3000_Simple_Socket by Frank Vannieuwkerke

Information

This demo uses the old HostDriver.
A newer release using the mbed socket compatible API HostDriver is available at Wi-Go_IOT_Demo_MKII.

Wi-Go Reference Design Overview


For additional information on Wi-Go, please visit http://www.em.avnet.com/wi-go
For additional information on Freescale eCompass, please visit
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=E-Compass
Ported from Avnet's Wi-Go KEIL code.
Special thanks to Jim Carver from Avnet for providing the Wi-Go board and for his assistance.


Multiple Wi-Fi applications are provided within the latest version of Wi-Go software:

  • SmartConfig App for auto-setup of Wi-Go network parameters.
  • WebServer display of live sensor data.
  • Exosite portal sensor data feed by Wi-Go.
  • Freescale's Sensor Fusion App data feed by Wi-Go.

Wi-Go is intended for "untethered" portable operation (using it's high-capacity Lithium-Polymer battery). The serial terminal text interface is only required for initial setup, thereafter selection of an application from those available is via finger position on the Touch Slider during the initial 6 second startup period.

Running the Wi-Go Demo Suite

Warning

  • We need a large amount of free RAM for the eCompass library:
    Before compiling the code, check if CC3000_MAXIMAL_RX_SIZE is set to (511 + 1) in cc3000_common.h.
  • The on-board Firmware must be updated to mbed enable a Wi-Go system. Goto the Component page to get the FirmwareUpdate tool (scroll down to the FirmwareUpdate topic).

MAG3110 sensor and eCompass Calibration!

As with the other sensor applications, the eCompass function requires quality calibration data to achieve best accuracy.
For the first 15 seconds after power-up it is recommended that "Figure 8" movements with Wi-Go be done in a smooth, repetitive pattern. Don't touch the slider pad during calibration.

Startup
The RGB LED blinks in a GREEN-ORANGE sequence to inform the user the module is waiting for input.
The RGB LED color designates which of the following Apps to launch.

RGB LED ColorApplication to Launch
PurpleSmartConfig
BlueWebServer
RedExosite Data Client
GreenAndroid Server

Swipe your index finger across the slider pad, the RGB LED color will change at approximately 25% intervals.
Removing your finger latches the last color displayed. After about 3 seconds, the selected app will start.
Another app can be selected when the slider pad is touched again within the 3 seconds timeout.

After launch of Exosite or Android Server Apps, the eCompass function then controls the RGB LED.
(not in WebServer mode where RGB LEDs are manually controlled by the User).

RGB LED ColorDirection Indication
BlueNear to North
GreenNorth
RedEast / West
PurpleSouth

__Note!__ The D1, D2 and D3 User LEDs on Wi-Go adhere to the following convention for the different Apps

User LED#Description of function controlling the LED
D1is the board heartbeat, derived from the timer interrupt
D2indicates network activity as follows:
Web Server Wi-Go webpage is being served.
Exosite Client Wi-Go is sending data.
Android App Wi-Go is sending data
D3WLAN Network is Connected

Detail of Wi-Go Applications

App #1: SmartConfig
See TI's pages on how to use the SmartConfig tool:

  • Preferred method : Configuration using the SmartConfig tool
  • SmartConfig download: Smart Config and Home Automation
    • iOS app : available at Apple app store.
    • Android app : download and install the Android SmartConfig Application on a PC.
      This file contains the source code as well as the compiled APK file.
      The APK file is stored in ti\CC3000AndroidApp\SmartConfigCC3X\bin.

App #2: WebServer display of live sensor data
__Note!__
When using the WebServer for the first time on a Wi-Fi network you will need to determine the IP address that's assigned to Wi-Go by the DHCP Server. To do this, it is recommended you use one of the following two methods:

  • While Wi-Go is initially tethered to a laptop via USB, launch of the WebServer Application and note the IP address that is reported on the terminal screen immediately after selection of this App.
  • Alternatively, use a 3rd party LAN SCAN type tool to view Wi-Go's IP address.
    eg. FING, - available for free download from Google Play or iTunes App Stores…

Wi-Go's WebServer Application is selected as follows:

  • Press RESET, followed by the eCompass Calibration (mentioned at the top of this page).
    Then use index finger on slider to select the WebServer App (RGB LED = BLUE).
    At end of the 3 second selection period the WebServer App shall launch.
  • If you are tethered to a laptop and have a terminal open the Wi-Fi network connection confirmation will be seen, eg.

'*** Wi-Go board DHCP assigned IP Address = 192.168.43.102
  • Once you have noted Wi-Go's reported IP address, the USB cable may be disconnected and Wi-Go then used as intended, running on it's own battery power.
  • Use an Internet Browser on SmartPhone/Tablet/Laptop (connected to same Hot-Spot/Wireless Router subnet), to now connect to the noted Wi-Go IP address and view the WebServer output: /media/uploads/frankvnk/wi-go_webserver.png
  • the Webserver sensor data is auto-updated every 2 seconds a manual refresh (F5 on laptop).
  • In the event of an error, press refresh to regenerate the screen.
  • Use the mouse (or touch-screen) to exercise the RGB LED output.

App #3: Exosite Data Client
Wi-Go's sensor data gets transmitted via Wi-Fi to a cloud-based Exosite portal where the sensor measurements are displayed graphically on a "dashboard". Users can create unique customized dashboards using drag and drop GUI widgets from the library provided on the Exosite website.
__Note!__ For the Exosite application a "live" connection to the Internet is required !!!

  • Press RESET, followed by the eCompass Calibration (mentioned at the top of this page).
    Then use index finger on slider to select the Exosite Client App (RGB LED = RED)
  • On launching this App, note Wi-Go's MAC address displayed on your terminal
    (if not running a terminal use FING or other WLAN Scan tool to determine Wi-Go's MAC address) /media/uploads/frankvnk/mac_address.png
  • Using your computer's internet browser, go to avnet.exosite.com and sign-up for a free Avnet Trial Exosite Account: /media/uploads/frankvnk/avnet_trial_exosite.png
  • On the next screen, click on the Sign-Up Now button in the displayed Avnet Trial account option.
  • Complete the Account Info and Contact Info then click on Create Account (make sure to use a valid email address!).
  • Check for new incoming email from avnet.exosite.com to the address you provided and click on the link in this email to activate your new Exosite account.
  • Once activated, login using the email address and password that you chose in your registration. Your Exosite Portal and Dashboard should now display. The first time you log-in to your new account, the default Home dashboard will be displayed, pre-configured with two widgets. On the left is the Welcome widget for tips and information. On the right is the Device List widget.
    Dashboards are configurable, so at any time this default dashboard can be changed, widgets deleted and added (Clicking the upside-down triangle icon in a widget's Title bar will allow you to edit it).
  • Before going further with the Dashboard, you need to connect your Wi-Go device to your Exosite account. Do this by going to the left sidebar and selecting Devices followed by selecting the +Add Device link (on right of screen). /media/uploads/frankvnk/add_device.png
  • In the Setup screens that follow, enter the following
Select a supported deviceWi-Go
Enter device MAC Addressnn:nn:nn:nn:nn:nn [your Wi-Go's MAC address including colons]
Enter device Name[choose a descriptive name]
Enter device Location[description of your location]
  • Once completed, under Devices the name chosen for the added Wi-Go device should now be listed.
  • Click on this new Wi-Go device to examine (and edit if necessary) it's Device Information screen.
    /media/uploads/frankvnk/device_information.png
  • Click the CLOSE button to exit the Device Information screen.
  • On your Wi-Go kit now press RESET, followed by the eCompass Calibration (mentioned at the top of this page)
    and again select the Exosite Client App (RGB LED = RED) using your index finger.
  • Refresh your browser (press F5) a couple've times until the Active indicator changes to On (Green).
    /media/uploads/frankvnk/active_indicator.png
  • From the left sidebar click on Home and click on the recently named Wi-Go device which is located under the Device List.
    This will bring-up a default dashboard display similar to what's shown below.
    (Dashboards are typically accessed via the Dashboards menu entry). Check the dashboard is updating with live data by moving your Wi-Go Kit through different orientations.
    /media/uploads/frankvnk/dashboard.png
  • To create a custom dashboard, select Dashboards from the sidebar menu, followed by +Add Dashboard (on right side of Your Dashboards title bar). After completion of the initial configuration screen you will then be able to add Widgets to display the various Wi-Go data sources as well as pictures and text to support your application.
  • More guidance on the creation, editing and sharing of custom dashboards is available under the Exosite support pages

App #4: Android Sensor Fusion App

  • Press RESET, followed by the eCompass Calibration (mentioned at the top of this page)
    , then use index finger on slider to select the Android App (RGB LED = GREEN)
  • Freescale's ''Xtrinsic Sensor Fusion Toolbox'" will run on Android 3.0 or above phone or tablet. Free to download from Google Play, type Sensor fusion in the search box to find it. freescale.sensors.sfusion /media/uploads/frankvnk/sensor_fusion_toolbox.png
  • The Freescale App is well documented. To access the built-in documentation, press the NAV button at top of screen followed by Documentation from the scroll-down menu:
    /media/uploads/frankvnk/sensor_fusion_doc.png
  • Freescale's sensors site provides additional resources such as this overview: free-android-app-teaches-sensor-fusion-basics
  • Go to the Options Menu and select Preferences… /media/uploads/frankvnk/sensor_fusion_preferences.png
  • The following items need to be taken care of:
Enter WiGo's IP address
Enter the SSID (of the Hot-Spot or Wireless Access Point used by Wi-Go)
  • Press Save and Exit!
    /media/uploads/frankvnk/sensor_fusion_save_and_exit.png
  • Exit the Application completely then re-launch the Sensor Fusion Application.
  • Select the ''Source/Algorithm'" menu and change the data source to Wi-Go mag/accel /media/uploads/frankvnk/sensor_fusion_wigo_mag_accel.png
  • The Android App should now be displaying a 3-D image of Wi-Go that you can rotate and flip-over by moving the Wi-Go board accordingly…
  • Use NAV > Device View to display if this view does not come-up by default. /media/uploads/frankvnk/sensor_fusion_nav_device_view.png
  • A Serial Terminal connection is not necessary but if you happen to have one open you should see the following messages as Wi-Go connects to the Android App:
    "Server waiting for connection" followed by
    "connected, transmit buffer size= 96", and then
    "input = 0123456789"
    at which time Wi-Go starts streaming data to the Android App.
Committer:
frankvnk
Date:
Sat Sep 14 19:10:23 2013 +0000
Revision:
6:7c06ad22f206
Parent:
3:405462258899
Child:
7:0f3095de6ea5
httpserver.cpp - added printf / raised TX_BLOCK size from 256 to 1024

Who changed what in which revision?

UserRevisionLine numberNew contents of line
frankvnk 3:405462258899 1 /****************************************************************************
frankvnk 3:405462258899 2 *
frankvnk 3:405462258899 3 * httpserver.c - General HTTP Server implementation
frankvnk 3:405462258899 4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
frankvnk 3:405462258899 5 *
frankvnk 3:405462258899 6 * Redistribution and use in source and binary forms, with or without
frankvnk 3:405462258899 7 * modification, are permitted provided that the following conditions
frankvnk 3:405462258899 8 * are met:
frankvnk 3:405462258899 9 *
frankvnk 3:405462258899 10 * Redistributions of source code must retain the above copyright
frankvnk 3:405462258899 11 * notice, this list of conditions and the following disclaimer.
frankvnk 3:405462258899 12 *
frankvnk 3:405462258899 13 * Redistributions in binary form must reproduce the above copyright
frankvnk 3:405462258899 14 * notice, this list of conditions and the following disclaimer in the
frankvnk 3:405462258899 15 * documentation and/or other materials provided with the
frankvnk 3:405462258899 16 * distribution.
frankvnk 3:405462258899 17 *
frankvnk 3:405462258899 18 * Neither the name of Texas Instruments Incorporated nor the names of
frankvnk 3:405462258899 19 * its contributors may be used to endorse or promote products derived
frankvnk 3:405462258899 20 * from this software without specific prior written permission.
frankvnk 3:405462258899 21 *
frankvnk 3:405462258899 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
frankvnk 3:405462258899 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
frankvnk 3:405462258899 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
frankvnk 3:405462258899 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
frankvnk 3:405462258899 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
frankvnk 3:405462258899 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
frankvnk 3:405462258899 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
frankvnk 3:405462258899 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
frankvnk 3:405462258899 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
frankvnk 3:405462258899 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
frankvnk 3:405462258899 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
frankvnk 3:405462258899 33 *
frankvnk 3:405462258899 34 *****************************************************************************/
frankvnk 3:405462258899 35
frankvnk 3:405462258899 36 #include "httpserver.h"
frankvnk 3:405462258899 37 #include "doTCPIP.h"
frankvnk 3:405462258899 38 #include "TSISensor.h"
frankvnk 3:405462258899 39
frankvnk 3:405462258899 40 extern axis6_t axis6;
frankvnk 3:405462258899 41 extern TSISensor tsi;
frankvnk 3:405462258899 42
frankvnk 3:405462258899 43 /** \brief Socket used by server to listen and accept connections */
frankvnk 3:405462258899 44 long httpServerSocket;
frankvnk 3:405462258899 45
frankvnk 3:405462258899 46 /** \brief Variable holding the server's port */
frankvnk 3:405462258899 47 int serverPort = 0;
frankvnk 3:405462258899 48
frankvnk 3:405462258899 49 /** \brief Pointer to the index HTML page */
frankvnk 3:405462258899 50 char * indexPage;
frankvnk 3:405462258899 51 extern unsigned char *dataPacket;
frankvnk 3:405462258899 52
frankvnk 3:405462258899 53 /** \brief Pointer to CGI handler structure */
frankvnk 3:405462258899 54 cgi_handler * chList;
frankvnk 3:405462258899 55
frankvnk 3:405462258899 56 /** \brief Pointer to Dynamic HTML handler structure */
frankvnk 3:405462258899 57 dyn_html_handler * htmlList;
frankvnk 3:405462258899 58
frankvnk 3:405462258899 59 /** \brief Pointer to Dynamic HTML handler structure */
frankvnk 3:405462258899 60 http_server_event_handler * eventHandlers = NULL;
frankvnk 3:405462258899 61
frankvnk 3:405462258899 62
frankvnk 3:405462258899 63 /** \brief Client socket handle list */
frankvnk 3:405462258899 64 int clientList[MAX_CLIENTS];
frankvnk 3:405462258899 65
frankvnk 3:405462258899 66 /** \brief Page view counter */
frankvnk 3:405462258899 67 int viewCounter = 1;
frankvnk 6:7c06ad22f206 68 #define REQ_BUFFER_SIZE 400
frankvnk 6:7c06ad22f206 69 //#define HTTP_TX_BLOCK_SIZE 256
frankvnk 6:7c06ad22f206 70 #define HTTP_TX_BLOCK_SIZE 1024
frankvnk 6:7c06ad22f206 71 //#define HTTP_TX_BLOCK_SIZE 512
frankvnk 3:405462258899 72
frankvnk 3:405462258899 73
frankvnk 3:405462258899 74 extern char requestBuffer[REQ_BUFFER_SIZE];
frankvnk 3:405462258899 75
frankvnk 3:405462258899 76
frankvnk 3:405462258899 77 volatile int Delay;
frankvnk 3:405462258899 78
frankvnk 3:405462258899 79 //extern char OkToDoShutDown;
frankvnk 3:405462258899 80 //extern int newData, secondFlag, ms5Flag;
frankvnk 3:405462258899 81
frankvnk 3:405462258899 82 /********************************************************************/
frankvnk 3:405462258899 83 void getAccelXYZ_Str(char * str) // MMA8451Q accelerometer - report axis with highest value
frankvnk 3:405462258899 84 {
frankvnk 3:405462258899 85 sprintf(str," "); //clears field (needed if previous string had more characters)
frankvnk 3:405462258899 86 sprintf(str, "X= %1.2f, Y= %1.2f, Z= %1.2f", axis6.fGax, axis6.fGay, axis6.fGaz);;
frankvnk 3:405462258899 87 }
frankvnk 3:405462258899 88
frankvnk 3:405462258899 89 /********************************************************************/
frankvnk 3:405462258899 90 void getTemperatureStr(char * str) //
frankvnk 3:405462258899 91 {
frankvnk 3:405462258899 92 sprintf(str, "%+d C", axis6.temp);
frankvnk 3:405462258899 93 }
frankvnk 3:405462258899 94
frankvnk 3:405462258899 95 /********************************************************************/
frankvnk 3:405462258899 96 void getTSI_sliderStr(char * str) // TSI Slider position
frankvnk 3:405462258899 97 {
frankvnk 3:405462258899 98 uint8_t slider_position;
frankvnk 3:405462258899 99
frankvnk 3:405462258899 100 slider_position = tsi.readPercentage() * 100; // Slider position as percentage
frankvnk 3:405462258899 101 sprintf(str," "); //clears field (needed if previous string had more characters)
frankvnk 3:405462258899 102 sprintf(str, "%d %%", slider_position);
frankvnk 3:405462258899 103 }
frankvnk 3:405462258899 104
frankvnk 3:405462258899 105 void getCompassStr(char * str) // Mag3110 generated Compass bearing
frankvnk 3:405462258899 106 {
frankvnk 3:405462258899 107 char *compass_points[9] = {"North", "N-East", "East", "S-East", "South", "S-West", "West", "N-West", "North"};
frankvnk 3:405462258899 108 signed short compass_bearing = (axis6.compass + 23) / 45;
frankvnk 3:405462258899 109 sprintf(str," "); //clears field (needed if previous string had more characters)
frankvnk 3:405462258899 110 sprintf(str, "Roll=%-d Pitch=%-d Yaw=%-d [%s]", axis6.roll, axis6.pitch, axis6.yaw, compass_points[compass_bearing]); //
frankvnk 3:405462258899 111 }
frankvnk 3:405462258899 112
frankvnk 3:405462258899 113 void getM3110Str(char * str) // Mag3110 displayed in units of UT
frankvnk 3:405462258899 114 {
frankvnk 3:405462258899 115 sprintf(str," "); //clears field (needed if previous string had more characters)
frankvnk 3:405462258899 116 sprintf(str, "X= %3.1f, Y= %3.1f, Z= %3.1f", axis6.fUTmx, axis6.fUTmy, axis6.fUTmz);
frankvnk 3:405462258899 117 }
frankvnk 3:405462258899 118
frankvnk 3:405462258899 119 /********************************************************************/
frankvnk 3:405462258899 120 extern void getAltitudeStr(char * str) // Get Altitude
frankvnk 3:405462258899 121 {
frankvnk 3:405462258899 122 sprintf(str, "%+d meters", axis6.alt); // str = integer portion of result
frankvnk 3:405462258899 123 }
frankvnk 3:405462258899 124
frankvnk 3:405462258899 125 //*****************************************************************************
frankvnk 3:405462258899 126 //
frankvnk 3:405462258899 127 //! \brief Initializes HTTP Server
frankvnk 3:405462258899 128 //!
frankvnk 3:405462258899 129 //! \param cnum is the client socket handle to be used
frankvnk 3:405462258899 130 //!
frankvnk 3:405462258899 131 //! \return 0 if successful
frankvnk 3:405462258899 132 //!
frankvnk 3:405462258899 133 //
frankvnk 3:405462258899 134 //*****************************************************************************
frankvnk 3:405462258899 135 char initHTTPServer(int port,
frankvnk 3:405462258899 136 char * ipage,
frankvnk 3:405462258899 137 cgi_handler * handleList,
frankvnk 3:405462258899 138 dyn_html_handler * dhList)
frankvnk 3:405462258899 139 {
frankvnk 3:405462258899 140 sockaddr serverSocketAddr;
frankvnk 3:405462258899 141 serverPort = port;
frankvnk 3:405462258899 142 indexPage = ipage;
frankvnk 3:405462258899 143 chList = handleList;
frankvnk 3:405462258899 144 htmlList = dhList;
frankvnk 3:405462258899 145
frankvnk 3:405462258899 146
frankvnk 3:405462258899 147 httpServerSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
frankvnk 3:405462258899 148 if (httpServerSocket == -1)
frankvnk 3:405462258899 149 {
frankvnk 3:405462258899 150 printf("oops\n");
frankvnk 3:405462258899 151 wlan_stop();
frankvnk 6:7c06ad22f206 152 return((char)-1);
frankvnk 3:405462258899 153 }
frankvnk 3:405462258899 154
frankvnk 3:405462258899 155 serverSocketAddr.sa_family = AF_INET;
frankvnk 3:405462258899 156
frankvnk 3:405462258899 157 // Set the Port Number
frankvnk 3:405462258899 158 serverSocketAddr.sa_data[0] = (port & 0xFF00)>> 8;
frankvnk 3:405462258899 159 serverSocketAddr.sa_data[1] = (port & 0x00FF);
frankvnk 3:405462258899 160
frankvnk 3:405462258899 161 memset (&serverSocketAddr.sa_data[2], 0, 4);
frankvnk 3:405462258899 162
frankvnk 3:405462258899 163 if (bind(httpServerSocket, &serverSocketAddr, sizeof(sockaddr)) != 0);
frankvnk 3:405462258899 164
frankvnk 3:405462258899 165 return 0;
frankvnk 3:405462258899 166 }
frankvnk 3:405462258899 167
frankvnk 3:405462258899 168 //*****************************************************************************
frankvnk 3:405462258899 169 //
frankvnk 3:405462258899 170 //! \brief Main HTTP Server
frankvnk 3:405462258899 171 //!
frankvnk 3:405462258899 172 //! \param none
frankvnk 3:405462258899 173 //!
frankvnk 3:405462258899 174 //! \return none
frankvnk 3:405462258899 175 //!
frankvnk 3:405462258899 176 //
frankvnk 3:405462258899 177 //*****************************************************************************
frankvnk 3:405462258899 178 void serverMain()
frankvnk 3:405462258899 179 {
frankvnk 3:405462258899 180 sockaddr clientaddr;
frankvnk 3:405462258899 181 socklen_t addrlen;
frankvnk 3:405462258899 182 int i = 0;
frankvnk 3:405462258899 183 int currentClient = 0;
frankvnk 3:405462258899 184 printf("Main HTTP server\n");
frankvnk 3:405462258899 185 for(i = 0; i < MAX_CLIENTS; i++)
frankvnk 3:405462258899 186 clientList[i] = -1;
frankvnk 3:405462258899 187
frankvnk 3:405462258899 188 // Start Listening
frankvnk 3:405462258899 189 if (listen (httpServerSocket, MAX_CLIENTS) != 0);
frankvnk 3:405462258899 190
frankvnk 3:405462258899 191 // Handle Clients and Data
frankvnk 3:405462258899 192 while(1)
frankvnk 3:405462258899 193 {
frankvnk 3:405462258899 194 addrlen = sizeof(clientaddr);
frankvnk 3:405462258899 195 printf("Current Client= %d\n", currentClient);
frankvnk 3:405462258899 196 // accept blocks until we receive a connection
frankvnk 3:405462258899 197 //LED_D2_ON;
frankvnk 3:405462258899 198 ms5Flag = 0;
frankvnk 3:405462258899 199 while ( (clientList[currentClient] == -1) || (clientList[currentClient] == -2) )
frankvnk 3:405462258899 200 {
frankvnk 3:405462258899 201 clientList[currentClient] = accept(httpServerSocket, (sockaddr *) &clientaddr, &addrlen);
frankvnk 3:405462258899 202 }
frankvnk 3:405462258899 203
frankvnk 3:405462258899 204 if(clientList[currentClient] >= 0)
frankvnk 3:405462258899 205 {
frankvnk 3:405462258899 206 // Connection Accepted, Send Data
frankvnk 3:405462258899 207 // Wait for a data update
frankvnk 3:405462258899 208 newData = 0;
frankvnk 3:405462258899 209 while(!newData);
frankvnk 3:405462258899 210 SysTick->CTRL &= ~SysTick_CTRL_TICKINT_Msk; // *** Disable SysTick Timer
frankvnk 3:405462258899 211 handleHTTPRequest(currentClient);
frankvnk 3:405462258899 212 closesocket(clientList[currentClient]);
frankvnk 3:405462258899 213 clientList[currentClient]=-1;
frankvnk 3:405462258899 214 wait_us(40);
frankvnk 3:405462258899 215 }
frankvnk 3:405462258899 216 else if(clientList[currentClient] == -57)
frankvnk 3:405462258899 217 {
frankvnk 3:405462258899 218 // BUG: Socket inactive so reopen socket
frankvnk 3:405462258899 219 // Inactive Socket, close and reopen it
frankvnk 3:405462258899 220 printf("Oops!!!\n");
frankvnk 3:405462258899 221 closesocket(httpServerSocket);
frankvnk 3:405462258899 222 httpServerSocket = 0xFFFFFFFF;
frankvnk 3:405462258899 223 initHTTPServer(serverPort, indexPage, chList, htmlList);
frankvnk 3:405462258899 224 // Start Listening
frankvnk 3:405462258899 225 if ( listen (httpServerSocket, 5) != 0 );
frankvnk 3:405462258899 226 }
frankvnk 3:405462258899 227 SysTick->CTRL |= SysTick_CTRL_TICKINT_Msk; // *** Re-Enable SysTick Timer
frankvnk 3:405462258899 228 }
frankvnk 3:405462258899 229 }
frankvnk 3:405462258899 230
frankvnk 3:405462258899 231 //*****************************************************************************
frankvnk 3:405462258899 232 //
frankvnk 3:405462258899 233 //! \brief Handles HTTP Requests
frankvnk 3:405462258899 234 //!
frankvnk 3:405462258899 235 //! \param cnum is the client socket handle to be used
frankvnk 3:405462258899 236 //!
frankvnk 3:405462258899 237 //! \return none
frankvnk 3:405462258899 238 //!
frankvnk 3:405462258899 239 //
frankvnk 3:405462258899 240 //*****************************************************************************
frankvnk 3:405462258899 241 void handleHTTPRequest(int cnum)
frankvnk 3:405462258899 242 {
frankvnk 3:405462258899 243
frankvnk 3:405462258899 244 char * reqline[3];
frankvnk 3:405462258899 245 char * cgiTok;
frankvnk 3:405462258899 246
frankvnk 3:405462258899 247 int i = 0;
frankvnk 3:405462258899 248 char paramBuf[20];
frankvnk 3:405462258899 249 int bytesRecvd;
frankvnk 3:405462258899 250 char tempStr[40]; //PF was 26
frankvnk 3:405462258899 251
frankvnk 3:405462258899 252 memset(requestBuffer,0,sizeof (requestBuffer));
frankvnk 3:405462258899 253 bytesRecvd = recv(clientList[cnum], requestBuffer, sizeof(requestBuffer), 0);
frankvnk 3:405462258899 254
frankvnk 3:405462258899 255 printf("\nhandleHTTPRequest\n");
frankvnk 3:405462258899 256
frankvnk 3:405462258899 257 if(bytesRecvd > 0)
frankvnk 3:405462258899 258 {
frankvnk 3:405462258899 259 // Received some data, check it and send data back
frankvnk 3:405462258899 260 reqline[0] = strstr(requestBuffer, "GET");
frankvnk 3:405462258899 261 if ( reqline[0] != NULL )
frankvnk 3:405462258899 262 {
frankvnk 3:405462258899 263 if (strstr (requestBuffer, "HTTP/1.0") != NULL && strstr (requestBuffer, "HTTP/1.1") != NULL )
frankvnk 3:405462258899 264 {
frankvnk 3:405462258899 265 send(clientList[cnum], "HTTP/1.0 400 Bad Request\n", 25,0);
frankvnk 3:405462258899 266 }
frankvnk 3:405462258899 267 else
frankvnk 3:405462258899 268 {
frankvnk 3:405462258899 269
frankvnk 3:405462258899 270 #ifdef HTTP_CGI_ENABLED
frankvnk 3:405462258899 271 // Do we have CGI parameters we need to parse?
frankvnk 3:405462258899 272 if(strchr(requestBuffer, '?') != NULL)
frankvnk 3:405462258899 273 {
frankvnk 3:405462258899 274 // Decode URL and handle each parameter sequentially
frankvnk 3:405462258899 275 // according to table previously setup.
frankvnk 3:405462258899 276 cgiTok = strstr(requestBuffer,"=");
frankvnk 3:405462258899 277 if(cgiTok != NULL)
frankvnk 3:405462258899 278 {
frankvnk 3:405462258899 279 memset(paramBuf,0,sizeof(paramBuf));
frankvnk 3:405462258899 280 memcpy(paramBuf,cgiTok+1,5); // hard-coded for demo: 5 character parameter (-Red-/Green/Blue-)
frankvnk 3:405462258899 281 chList->cgiHandlerFunc[0](paramBuf);
frankvnk 3:405462258899 282
frankvnk 3:405462258899 283 }
frankvnk 3:405462258899 284 }
frankvnk 3:405462258899 285 #endif
frankvnk 3:405462258899 286
frankvnk 3:405462258899 287 #ifdef HTTP_DYN_HTML_ENABLED
frankvnk 3:405462258899 288 // The code below replaces data in the HTML page
frankvnk 3:405462258899 289 // with that generated by the specified functions.
frankvnk 3:405462258899 290 for(i = 0; i < 9; i++) // change the range here for more dynamic fields on webpage
frankvnk 3:405462258899 291 {
frankvnk 3:405462258899 292 memset(tempStr,0,sizeof(tempStr));
frankvnk 3:405462258899 293 htmlList->dynHtmlFunc[i](tempStr);
frankvnk 3:405462258899 294 tempStr[strlen(tempStr)]= ' ';
frankvnk 3:405462258899 295 pageReplace((char *)indexPage,
frankvnk 3:405462258899 296 (char *)htmlList->dynHtmlParamName[i],
frankvnk 3:405462258899 297 (char *)tempStr);
frankvnk 3:405462258899 298 }
frankvnk 3:405462258899 299 #endif
frankvnk 3:405462258899 300 viewCounter++;
frankvnk 3:405462258899 301
frankvnk 3:405462258899 302 sendHTTPData(clientList[cnum], HTTP_RESP, strlen(HTTP_RESP));
frankvnk 3:405462258899 303
frankvnk 3:405462258899 304 for(i = 0; i < strlen(indexPage); i += HTTP_TX_BLOCK_SIZE)
frankvnk 3:405462258899 305 {
frankvnk 3:405462258899 306
frankvnk 3:405462258899 307 if(strlen(indexPage) - i < HTTP_TX_BLOCK_SIZE)
frankvnk 3:405462258899 308 {
frankvnk 3:405462258899 309 sendHTTPData(clientList[cnum], &indexPage[i], strlen(indexPage) - i);
frankvnk 3:405462258899 310 }
frankvnk 3:405462258899 311 else
frankvnk 3:405462258899 312 {
frankvnk 3:405462258899 313 sendHTTPData(clientList[cnum], &indexPage[i], HTTP_TX_BLOCK_SIZE);
frankvnk 3:405462258899 314 }
frankvnk 3:405462258899 315 // This delay is necessary, or else we run into issues
frankvnk 6:7c06ad22f206 316 // for (Delay = 0; Delay < 1000; Delay++); //PF
frankvnk 3:405462258899 317 }
frankvnk 3:405462258899 318 }
frankvnk 3:405462258899 319 }
frankvnk 3:405462258899 320 }
frankvnk 3:405462258899 321 }
frankvnk 3:405462258899 322
frankvnk 3:405462258899 323 //*****************************************************************************
frankvnk 3:405462258899 324 //
frankvnk 3:405462258899 325 //! \brief Inserts characters in page that appear after an indicator ind
frankvnk 3:405462258899 326 //! with the value from val
frankvnk 3:405462258899 327 //!
frankvnk 3:405462258899 328 //! \param page is a pointer to the array holding the page's HTML code
frankvnk 3:405462258899 329 //! \param ind is a pointer to a string that has the name of the parameter on the page to modify
frankvnk 3:405462258899 330 //! \param val is the pointer to a string holding the string to insert in the XXX
frankvnk 3:405462258899 331 //!
frankvnk 3:405462258899 332 //! \return none
frankvnk 3:405462258899 333 //!
frankvnk 3:405462258899 334 //
frankvnk 3:405462258899 335 //*****************************************************************************
frankvnk 3:405462258899 336 void pageReplace(char * page, char * ind, char * val)
frankvnk 3:405462258899 337 {
frankvnk 3:405462258899 338 char * indicLoc;
frankvnk 3:405462258899 339 indicLoc = strstr (page,ind);
frankvnk 3:405462258899 340 memcpy(indicLoc+strlen(ind), val, strlen(val));
frankvnk 3:405462258899 341 }
frankvnk 3:405462258899 342
frankvnk 3:405462258899 343 //*****************************************************************************
frankvnk 3:405462258899 344 //
frankvnk 3:405462258899 345 //! \brief Returns a string with the number of views of the page
frankvnk 3:405462258899 346 //!
frankvnk 3:405462258899 347 //! \param str is a pointer to the array where the number of views will be put
frankvnk 3:405462258899 348 //!
frankvnk 3:405462258899 349 //! \return none
frankvnk 3:405462258899 350 //!
frankvnk 3:405462258899 351 //
frankvnk 3:405462258899 352 //*****************************************************************************
frankvnk 3:405462258899 353 extern uint32 cal_count;
frankvnk 3:405462258899 354
frankvnk 3:405462258899 355
frankvnk 3:405462258899 356 void getViewsNum(char * str)
frankvnk 3:405462258899 357 {
frankvnk 3:405462258899 358 sprintf(str, "%d", viewCounter);
frankvnk 3:405462258899 359 }
frankvnk 3:405462258899 360
frankvnk 3:405462258899 361 //*****************************************************************************
frankvnk 3:405462258899 362 //
frankvnk 3:405462258899 363 //! \brief Sends HTTP Data
frankvnk 3:405462258899 364 //!
frankvnk 3:405462258899 365 //! \param sdesc is the socket descriptor of the socket used for sending data
frankvnk 3:405462258899 366 //! \param buf is a pointer to the buffer with the data to be sent
frankvnk 3:405462258899 367 //! \param len is the number of bytes to send
frankvnk 3:405462258899 368 //!
frankvnk 3:405462258899 369 //! \return none
frankvnk 3:405462258899 370 //!
frankvnk 3:405462258899 371 //
frankvnk 3:405462258899 372 //*****************************************************************************
frankvnk 3:405462258899 373 void sendHTTPData(long sdesc, const void *buf, long len)
frankvnk 3:405462258899 374 {
frankvnk 3:405462258899 375 int bytesSent = -2;
frankvnk 3:405462258899 376 while(bytesSent == -2) bytesSent = send(sdesc, buf, len,0);
frankvnk 3:405462258899 377 if(bytesSent == -1)
frankvnk 3:405462258899 378 {
frankvnk 3:405462258899 379 // General Send Error
frankvnk 6:7c06ad22f206 380 printf("General Send Error.\n");
frankvnk 3:405462258899 381 }
frankvnk 3:405462258899 382 if (bytesSent != strlen(indexPage))
frankvnk 3:405462258899 383 {
frankvnk 3:405462258899 384 // ERROR: not all bytes sent
frankvnk 6:7c06ad22f206 385 printf("Not all bytes sent.\n");
frankvnk 6:7c06ad22f206 386 printf("Length : %d - Sent : %d\n", strlen(indexPage), bytesSent);
frankvnk 3:405462258899 387 }
frankvnk 3:405462258899 388 }
frankvnk 3:405462258899 389
frankvnk 3:405462258899 390 //*****************************************************************************
frankvnk 3:405462258899 391 //
frankvnk 3:405462258899 392 //! \brief Initializes HTTP Server Event Handler
frankvnk 3:405462258899 393 //!
frankvnk 3:405462258899 394 //! \param eh is a pointer to the array handling server events
frankvnk 3:405462258899 395 //!
frankvnk 3:405462258899 396 //! \return none
frankvnk 3:405462258899 397 //!
frankvnk 3:405462258899 398 //
frankvnk 3:405462258899 399 //*****************************************************************************
frankvnk 3:405462258899 400 void initEventHandlers(http_server_event_handler * eh)
frankvnk 3:405462258899 401 {
frankvnk 3:405462258899 402 eventHandlers = eh;
frankvnk 3:405462258899 403 }
frankvnk 3:405462258899 404