David Fletcher
TI's CC3100 host driver and demo. Experimental and a work in progress.
Diff: main.cpp
- Revision:
- 0:bbe98578d4c0
- Child:
- 1:da33a9116bda
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Nov 17 19:38:34 2014 +0000
@@ -0,0 +1,485 @@
+/*
+ * main.c - sample application to switch to AP mode and ping client
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 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.
+ *
+ * Neither the name of Texas Instruments Incorporated 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.
+ *
+ */
+
+/*
+ * Application Name - Getting started with Wi-Fi Access-Point mode
+ * Application Overview - This sample application demonstrates how
+ * to configure CC3100 in Access-Point mode. Any
+ * WLAN station in its range can connect/communicate
+ * to/with it as per the standard networking protocols.
+ * On a successful connection, the device ping's the
+ * connected station.
+ * Application Details - http://processors.wiki.ti.com/index.php/CC31xx_Getting_Started_with_WLAN_AP
+ * doc\examples\getting_started_with_wlan_ap.pdf
+ */
+
+#include "cc3100_simplelink.h"
+#include "cc3100_sl_common.h"
+#
+#include "mbed.h"
+
+//using namespace mbed_cc3100;
+
+//cc3100_spi spi_con(p9, p10, p8, SPI(p5, p6, p7));
+Serial pc(SERIAL_TX, SERIAL_RX);//nucleoF411
+//Serial pc(USBTX, USBRX);//lpc1768
+
+//namespace mbed_cc3100 {
+
+#define APPLICATION_VERSION "1.1.0"
+
+#define SL_STOP_TIMEOUT 0xFF
+
+/* Use bit 32: Lower bits of status variable are used for NWP events
+ * 1 in a 'status_variable', the device has completed the ping operation
+ * 0 in a 'status_variable', the device has not completed the ping operation
+ */
+//#define STATUS_BIT_PING_DONE 31
+
+#define CONFIG_IP SL_IPV4_VAL(192,168,0,1) /* Static IP to be configured */
+#define CONFIG_MASK SL_IPV4_VAL(255,255,255,0) /* Subnet Mask for the station */
+#define CONFIG_GATEWAY SL_IPV4_VAL(192,168,0,1) /* Default Gateway address */
+#define CONFIG_DNS SL_IPV4_VAL(192,168,0,1) /* DNS Server Address */
+
+#define DHCP_START_IP SL_IPV4_VAL(192,168,0,100) /* DHCP start IP address */
+#define DHCP_END_IP SL_IPV4_VAL(192,168,0,200) /* DHCP End IP address */
+
+#define IP_LEASE_TIME 3600
+
+#define PING_INTERVAL 1000
+#define PING_SIZE 20
+#define PING_REQUEST_TIMEOUT 3000
+#define PING_ATTEMPT 3
+
+/* Application specific status/error codes */
+typedef enum{
+ LAN_CONNECTION_FAILED = -0x7D0, /* Choosing this number to avoid overlap with host-driver's error codes */
+ INTERNET_CONNECTION_FAILED = LAN_CONNECTION_FAILED - 1,
+ DEVICE_NOT_IN_STATION_MODE = INTERNET_CONNECTION_FAILED - 1,
+
+ STATUS_CODE_MAX = -0xBB8
+}e_AppStatusCodes;
+/*
+#define IS_PING_DONE(status_variable) GET_STATUS_BIT(status_variable, \
+ STATUS_BIT_PING_DONE)
+*/
+/*
+ * GLOBAL VARIABLES -- Start
+ */
+
+//extern unsigned int g_GatewayIP = 0;
+//extern unsigned int g_StationIP = 0;
+unsigned int g_PingPacketsRecv = 0;
+
+/*
+ * GLOBAL VARIABLES -- End
+ */
+
+
+/*
+ * STATIC FUNCTION DEFINITIONS -- Start
+ */
+static signed int configureSimpleLinkToDefaultState();
+static signed int initializeAppVariables();
+static void displayBanner();
+
+/*
+ * STATIC FUNCTION DEFINITIONS -- End
+ */
+
+/*
+ * ASYNCHRONOUS EVENT HANDLERS -- Start
+ */
+
+/*!
+ \brief This function handles ping report events
+
+ \param[in] pPingReport holds the ping report statistics
+
+ \return None
+
+ \note
+
+ \warning
+*/
+
+static void SimpleLinkPingReport(SlPingReport_t *pPingReport)
+{
+ SET_STATUS_BIT(g_Status, STATUS_BIT_PING_DONE);
+
+ if(pPingReport == NULL)
+
+ printf(" [PING REPORT] NULL Pointer Error\r\n");
+
+ g_PingPacketsRecv = pPingReport->PacketsReceived;
+}
+
+/*
+ * ASYNCHRONOUS EVENT HANDLERS -- End
+ */
+
+
+/*
+ * Application's entry point
+ */
+int main()
+{
+ pc.baud(115200);
+
+ SlPingStartCommand_t PingParams = {0};
+ SlPingReport_t Report = {0};
+ SlNetCfgIpV4Args_t ipV4 = {0};
+ SlNetAppDhcpServerBasicOpt_t dhcpParams = {0};
+
+ unsigned char SecType = 0;
+ signed int mode = ROLE_STA;
+ signed int retVal = -1;
+
+ retVal = initializeAppVariables();
+ ASSERT_ON_ERROR(retVal);
+
+ displayBanner();
+
+ CLR_STATUS_BIT(g_Status, STATUS_BIT_PING_DONE);
+ g_PingPacketsRecv = 0;
+
+ /*
+ * Following function configures the device to default state by cleaning
+ * the persistent settings stored in NVMEM (viz. connection profiles &
+ * policies, power policy etc)
+ *
+ * Applications may choose to skip this step if the developer is sure
+ * that the device is in its default state at start of application
+ *
+ * Note that all profiles and persistent settings that were done on the
+ * device will be lost
+ */
+ retVal = configureSimpleLinkToDefaultState();
+
+ if(retVal < 0)
+ {
+ if (DEVICE_NOT_IN_STATION_MODE == retVal)
+ printf(" Failed to configure the device in its default state \n\r");
+
+ LOOP_FOREVER();
+ }
+
+ printf(" Device is configured in default state \n\r");
+
+ /*
+ * Assumption is that the device is configured in station mode already
+ * and it is in its default state
+ */
+ mode = sl_Start(0, 0, 0);
+ if (ROLE_AP == mode)
+ {
+ /* If the device is in AP mode, we need to wait for this event before doing anything */
+ while(!IS_IP_ACQUIRED(g_Status)) { _SlNonOsMainLoopTask(); }
+ }
+ else
+ {
+ /* Configure CC3100 to start in AP mode */
+ retVal = sl_WlanSetMode(ROLE_AP);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ retVal = sl_Stop(SL_STOP_TIMEOUT);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ CLR_STATUS_BIT(g_Status, STATUS_BIT_IP_ACQUIRED);
+
+ mode = sl_Start(0, 0, 0);
+ if (ROLE_AP == mode)
+ {
+ /* If the device is in AP mode, we need to wait for this event before doing anything */
+ while(!IS_IP_ACQUIRED(g_Status)) { _SlNonOsMainLoopTask(); }
+ }
+ else
+ {
+ printf(" Device couldn't be configured in AP mode \n\r");
+ LOOP_FOREVER();
+ }
+ }
+
+ printf(" Ready to configue SSID\r\n");
+
+ /* Configure the SSID of the CC3100 */
+ retVal = sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SSID,
+ pal_Strlen(SSID_AP_MODE), (unsigned char *)SSID_AP_MODE);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ SecType = SEC_TYPE_AP_MODE;
+ /* Configure the Security parameter the AP mode */
+ retVal = sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SECURITY_TYPE, 1,
+ (unsigned char *)&SecType);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ retVal = sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_PASSWORD, pal_Strlen(PASSWORD_AP_MODE),
+ (unsigned char *)PASSWORD_AP_MODE);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ ipV4.ipV4 = CONFIG_IP;
+ ipV4.ipV4Mask = CONFIG_MASK;
+ ipV4.ipV4Gateway = CONFIG_GATEWAY;
+ ipV4.ipV4DnsServer = CONFIG_DNS;
+
+ /* Configure the Static IP */
+ retVal = sl_NetCfgSet(SL_IPV4_AP_P2P_GO_STATIC_ENABLE,1,sizeof(SlNetCfgIpV4Args_t),
+ (unsigned char *)&ipV4);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ dhcpParams.lease_time = IP_LEASE_TIME;
+ dhcpParams.ipv4_addr_start = DHCP_START_IP;
+ dhcpParams.ipv4_addr_last = DHCP_END_IP;
+
+ retVal = sl_NetAppSet(SL_NET_APP_DHCP_SERVER_ID, NETAPP_SET_DHCP_SRV_BASIC_OPT,
+ sizeof(SlNetAppDhcpServerBasicOpt_t), (unsigned char*)&dhcpParams);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ /* Restart the CC3100 */
+ retVal = sl_Stop(SL_STOP_TIMEOUT);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ g_Status = 0;
+
+ mode = sl_Start(0, 0, 0);
+ if (ROLE_AP == mode)
+ {
+ /* If the device is in AP mode, we need to wait for this event before doing anything */
+ while(!IS_IP_ACQUIRED(g_Status)) { _SlNonOsMainLoopTask(); }
+ }
+ else
+ {
+ printf(" Device couldn't come in AP mode \n\r");
+ LOOP_FOREVER();
+ }
+
+ printf(" Device started as Access Point\n\r");
+
+ /* Wait */
+ printf(" Waiting for clients to connect...!\n\r");
+ while((!IS_IP_LEASED(g_Status)) || (!IS_STA_CONNECTED(g_Status))) { _SlNonOsMainLoopTask(); }
+ printf(" Client connected to the device \n\r");
+ printf(" Pinging...! \n\r");
+
+ /* Set the ping parameters */
+ PingParams.PingIntervalTime = PING_INTERVAL;
+ PingParams.PingSize = PING_SIZE;
+ PingParams.PingRequestTimeout = PING_REQUEST_TIMEOUT;
+ PingParams.TotalNumberOfAttempts = PING_ATTEMPT;
+ PingParams.Flags = 0;
+ PingParams.Ip = g_StationIP; /* Fill the station IP address connected to CC3100 */
+
+ /* Ping client connected to CC3100 */
+ retVal = sl_NetAppPingStart((SlPingStartCommand_t*)&PingParams, SL_AF_INET,
+ (SlPingReport_t*)&Report, SimpleLinkPingReport);
+ if(retVal < 0)
+ LOOP_FOREVER();
+
+ /* Wait */
+ while(!IS_PING_DONE(g_Status)) { _SlNonOsMainLoopTask(); }
+
+ if (0 == g_PingPacketsRecv)
+ {
+ printf(" A STATION couldn't connect to the device \n\r");
+ ASSERT_ON_ERROR(LAN_CONNECTION_FAILED);
+ }
+
+ printf(" Device and the station are successfully connected \n\r");
+ return SUCCESS;
+}
+
+
+/*!
+ \brief This function configure the SimpleLink device in its default state. It:
+ - Sets the mode to STATION
+ - Configures connection policy to Auto and AutoSmartConfig
+ - Deletes all the stored profiles
+ - Enables DHCP
+ - Disables Scan policy
+ - Sets Tx power to maximum
+ - Sets power policy to normal
+ - Unregisters mDNS services
+ - Remove all filters
+
+ \param[in] none
+
+ \return On success, zero is returned. On error, negative is returned
+*/
+static signed int configureSimpleLinkToDefaultState()
+{
+ SlVersionFull ver = {0};
+ _WlanRxFilterOperationCommandBuff_t RxFilterIdMask = {0};
+ unsigned char val = 1;
+ unsigned char configOpt = 0;
+ unsigned char configLen = 0;
+ unsigned char power = 0;
+
+ signed int retVal = -1;
+ signed int mode = -1;
+
+ mode = sl_Start(0, 0, 0);
+ ASSERT_ON_ERROR(mode);
+
+ /* If the device is not in station-mode, try configuring it in station-mode */
+ if (ROLE_STA != mode)
+ {
+ if (ROLE_AP == mode)
+ {
+ /* If the device is in AP mode, we need to wait for this event before doing anything */
+ while(!IS_IP_ACQUIRED(g_Status)) { _SlNonOsMainLoopTask(); }
+ }
+
+ /* Switch to STA role and restart */
+ retVal = sl_WlanSetMode(ROLE_STA);
+ ASSERT_ON_ERROR(retVal);
+
+ retVal = sl_Stop(SL_STOP_TIMEOUT);
+ ASSERT_ON_ERROR(retVal);
+
+ retVal = sl_Start(0, 0, 0);
+ ASSERT_ON_ERROR(retVal);
+
+ /* Check if the device is in station again */
+ if (ROLE_STA != retVal)
+ {
+ /* We don't want to proceed if the device is not coming up in station-mode */
+ ASSERT_ON_ERROR(DEVICE_NOT_IN_STATION_MODE);
+ }
+ }
+
+ /* Get the device's version-information */
+ configOpt = SL_DEVICE_GENERAL_VERSION;
+ configLen = sizeof(ver);
+ retVal = sl_DevGet(SL_DEVICE_GENERAL_CONFIGURATION, &configOpt, &configLen, (unsigned char *)(&ver));
+ ASSERT_ON_ERROR(retVal);
+
+ /* Set connection policy to Auto + SmartConfig (Device's default connection policy) */
+ retVal = sl_WlanPolicySet(SL_POLICY_CONNECTION, SL_CONNECTION_POLICY(1, 0, 0, 0, 1), NULL, 0);
+ ASSERT_ON_ERROR(retVal);
+
+ /* Remove all profiles */
+ retVal = sl_WlanProfileDel(0xFF);
+ ASSERT_ON_ERROR(retVal);
+
+ /*
+ * Device in station-mode. Disconnect previous connection if any
+ * The function returns 0 if 'Disconnected done', negative number if already disconnected
+ * Wait for 'disconnection' event if 0 is returned, Ignore other return-codes
+ */
+ retVal = sl_WlanDisconnect();
+ if(0 == retVal)
+ {
+ /* Wait */
+ while(IS_CONNECTED(g_Status)) { _SlNonOsMainLoopTask(); }
+ }
+
+ /* Enable DHCP client*/
+ retVal = sl_NetCfgSet(SL_IPV4_STA_P2P_CL_DHCP_ENABLE,1,1,&val);
+ ASSERT_ON_ERROR(retVal);
+
+ /* Disable scan */
+ configOpt = SL_SCAN_POLICY(0);
+ retVal = sl_WlanPolicySet(SL_POLICY_SCAN , configOpt, NULL, 0);
+ ASSERT_ON_ERROR(retVal);
+
+ /* Set Tx power level for station mode
+ Number between 0-15, as dB offset from maximum power - 0 will set maximum power */
+ power = 0;
+ retVal = sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, WLAN_GENERAL_PARAM_OPT_STA_TX_POWER, 1, (unsigned char *)&power);
+ ASSERT_ON_ERROR(retVal);
+
+ /* Set PM policy to normal */
+ retVal = sl_WlanPolicySet(SL_POLICY_PM , SL_NORMAL_POLICY, NULL, 0);
+ ASSERT_ON_ERROR(retVal);
+
+ /* Unregister mDNS services */
+ retVal = sl_NetAppMDNSUnRegisterService(0, 0);
+ ASSERT_ON_ERROR(retVal);
+
+ /* Remove all 64 filters (8*8) */
+ pal_Memset(RxFilterIdMask.FilterIdMask, 0xFF, 8);
+ retVal = sl_WlanRxFilterSet(SL_REMOVE_RX_FILTER, (unsigned char *)&RxFilterIdMask,
+ sizeof(_WlanRxFilterOperationCommandBuff_t));
+ ASSERT_ON_ERROR(retVal);
+
+ retVal = sl_Stop(SL_STOP_TIMEOUT);
+ ASSERT_ON_ERROR(retVal);
+
+ retVal = initializeAppVariables();
+ ASSERT_ON_ERROR(retVal);
+
+ return retVal; /* Success */
+}
+
+/*!
+ \brief This function initializes the application variables
+
+ \param[in] None
+
+ \return 0 on success, negative error-code on error
+*/
+static signed int initializeAppVariables()
+{
+ //g_Status = 0;
+ //g_PingPacketsRecv = 0;
+ //g_StationIP = 0;
+
+ return SUCCESS;
+}
+
+/*!
+ \brief This function displays the application's banner
+
+ \param None
+
+ \return None
+*/
+static void displayBanner()
+{
+ printf("\n\r\n\r");
+ printf(" Getting started with WLAN access-point application - Version ");
+ printf("%s",APPLICATION_VERSION);
+ printf("\n\r*******************************************************************\n\r");
+}
+