Driver for CC3000 Wi-Fi module
Dependencies: NVIC_set_all_priorities
Dependents: CC3000_Simple_Socket Wi-Go_IOT_Demo
Information
The current code has been reworked to a full object oriented application and contains an mbed socket compatible API.
CC3000 Wi-Fi module library
Info
This is the low level driver for TI's SimpleLink CC3000 device.
Port from Avnet's Wi-Go KEIL code (based on TI's CC3000 code).
Special thanks to Jim Carver from Avnet for providing the Wi-Go board and for his assistance.
Differences with TI's original code
The code functionality stays exactly the same.
In order to make it easier to use the code, following changes were made :
- Addition of a tool to shift all IRQ priorities to a lower level since it is very important to keep the SPI handler at the highest system priority, the WLAN interrupt the second highest and all other system interrupts at a lower priority, so their handlers can be preempted by the CC3000 interrupts.
- Addition of low level I/O controls and conditional compiler controls in cc3000_common.h.
- CC3000 initialisation, pin declarations, SPI and WLAN irq priorities are set in
Init_HostDriver
, we need to call this function at the start of the main function. - The SPI and HCI code are joined into one file.
- The include list has been rearranged - Only
#include "wlan.h"
is needed in the user API.
- Part of the CC3000's user eeprom memory is used to store additional info (52 bytes in NVMEM_USER_FILE_1):
# bytes | Description | Info |
1 | First time config parameter | Useful when connecting |
2 | Firmware updater version | used with the Firmware update tool |
2 | Service Pack version | used with the Firmware update tool |
3 | Driver Version | used with the Firmware update tool |
3 | Firmware Version | used with the Firmware update tool |
1 | CIK validation (Client Interface Key) | |
40 | CIK data (Client Interface Key) | used with the exosite |
Using the Library
A user API is needed to access the CC3000 functions.
Examples:
- Internet Of Things full WiGo demo (SmartConfig - WebServer - Exosite - Android sensor Fusion App)
- CC3000_Simple_Socket
Using the library with other processors
cc3000_common.cpp
loads the irq tool for all targets:
All current mbed targets are supported by this library.
#include "NVIC_set_all_priorities.h"
All low level settings that need to change are available in cc3000_common.h
//***************************************************************************** // PIN CONTROLS & COMPILE CONTROLS //***************************************************************************** // Compiler control #define CC3000_UNENCRYPTED_SMART_CONFIG // No encryption //#define CC3000_TINY_DRIVER // Driver for small memory model CPUs //Interrupt controls #define NVIC_ALL_IRQ NVIC_set_all_irq_priorities(3); // Set ALL interrupt priorities to level 3 #define NVIC_SPI_IRQ NVIC_SetPriority(SPI0_IRQn, 0x0); // Wi-Fi SPI interrupt must be higher priority than SysTick #define NVIC_PORT_IRQ NVIC_SetPriority(PORTA_IRQn, 0x1); #define NVIC_SYSTICK_IRQ NVIC_SetPriority(SysTick_IRQn, 0x2); // SysTick set to lower priority than Wi-Fi SPI bus interrupt //#define NVIC_ADC_IRQ NVIC_SetPriority(ADC0_IRQn, 0x3); // ADC is the lowest of all // Wlan controls #define WLAN_ISF_PCR PORTA->PCR[16] #define WLAN_ISF_ISFR PORTA->ISFR #define WLAN_ISF_MASK (1<<16) #define WLAN_ASSERT_CS wlan_cs = 0; //CS : active low #define WLAN_DEASSERT_CS wlan_cs = 1; #define WLAN_ASSERT_EN wlan_en = 1; //EN : active high #define WLAN_DEASSERT_EN wlan_en = 0; #define WLAN_READ_IRQ wlan_int #define WLAN_ENABLE_IRQ wlan_int.fall(&WLAN_IRQHandler); #define WLAN_DISABLE_IRQ wlan_int.fall(NULL); #define WLAN_IRQ_PIN_CREATE InterruptIn wlan_int (PTA16); #define WLAN_EN_PIN_CREATE DigitalOut wlan_en (PTA13); #define WLAN_CS_PIN_CREATE DigitalOut wlan_cs (PTD0); #define WLAN_SPI_PORT_CREATE SPI wlan(PTD2, PTD3, PTC5); // mosi, miso, sclk #define WLAN_SPI_PORT_INIT wlan.format(8,1); #define WLAN_SPI_SET_FREQ wlan.frequency(12000000); #define WLAN_SPI_SET_IRQ_HANDLER wlan_int.fall(&WLAN_IRQHandler); #define WLAN_SPI_WRITE wlan.write(*data++); #define WLAN_SPI_READ wlan.write(0x03); // !! DO NOT MODIFY the 0x03 parameter (CC3000 will not respond).
API documentation
Due to a little problem with the links on the mbed site, the API documentation is not directly accessible (will be solved in a next release).
Currently, it is only accessible by adding modules.html
to the API doc link: http://mbed.org/users/frankvnk/code/CC3000_Hostdriver/docs/tip/modules.html
wlan.cpp
- Committer:
- frankvnk
- Date:
- 2013-07-28
- Revision:
- 6:d733efcc2c56
- Parent:
- 4:d8255a5aad46
File content as of revision 6:d733efcc2c56:
/***************************************************************************** * * wlan - CC3000 Host Driver Implementation. * Copyright (C) 2011 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. * *****************************************************************************/ #include "wlan.h" extern void WriteWlanPin( unsigned char val ); volatile sSimplLinkInformation tSLInformation; #ifndef CC3000_UNENCRYPTED_SMART_CONFIG unsigned char key[AES128_KEY_SIZE]; unsigned char profileArray[SMART_CONFIG_PROFILE_SIZE]; #endif //CC3000_UNENCRYPTED_SMART_CONFIG static void SimpleLink_Init_Start(unsigned short usPatchesAvailableAtHost) { unsigned char *ptr; unsigned char *args; ptr = tSLInformation.pucTxCommandBuffer; args = (unsigned char *)(ptr + HEADERS_SIZE_CMD); UINT8_TO_STREAM(args, ((usPatchesAvailableAtHost) ? SL_PATCHES_REQUEST_FORCE_HOST : SL_PATCHES_REQUEST_DEFAULT)); // IRQ Line asserted - send HCI_CMND_SIMPLE_LINK_START to CC3000 hci_command_send(HCI_CMND_SIMPLE_LINK_START, ptr, WLAN_SL_INIT_START_PARAMS_LEN); SimpleLinkWaitEvent(HCI_CMND_SIMPLE_LINK_START, 0); } void wlan_init(tWlanCB sWlanCB, tFWPatches sFWPatches, tDriverPatches sDriverPatches, tBootLoaderPatches sBootLoaderPatches, tWlanReadInteruptPin sReadWlanInterruptPin, tWlanInterruptEnable sWlanInterruptEnable, tWlanInterruptDisable sWlanInterruptDisable, tWriteWlanPin sWriteWlanPin) { tSLInformation.sFWPatches = sFWPatches; tSLInformation.sDriverPatches = sDriverPatches; tSLInformation.sBootLoaderPatches = sBootLoaderPatches; // init io callback tSLInformation.ReadWlanInterruptPin = sReadWlanInterruptPin; tSLInformation.WlanInterruptEnable = sWlanInterruptEnable; tSLInformation.WlanInterruptDisable = sWlanInterruptDisable; tSLInformation.WriteWlanPin = sWriteWlanPin; //init asynchronous events callback tSLInformation.sWlanCB= sWlanCB; // By default TX Complete events are routed to host too tSLInformation.InformHostOnTxComplete = 1; } void SpiReceiveHandler(void *pvBuffer) { tSLInformation.usEventOrDataReceived = 1; tSLInformation.pucReceivedData = (unsigned char *)pvBuffer; hci_unsolicited_event_handler(); } void wlan_start(unsigned short usPatchesAvailableAtHost) { unsigned long ulSpiIRQState; tSLInformation.NumberOfSentPackets = 0; tSLInformation.NumberOfReleasedPackets = 0; tSLInformation.usRxEventOpcode = 0; tSLInformation.usNumberOfFreeBuffers = 0; tSLInformation.usSlBufferLength = 0; tSLInformation.usBufferSize = 0; tSLInformation.usRxDataPending = 0; tSLInformation.slTransmitDataError = 0; tSLInformation.usEventOrDataReceived = 0; tSLInformation.pucReceivedData = 0; // Allocate the memory for the RX/TX data transactions tSLInformation.pucTxCommandBuffer = (unsigned char *)wlan_tx_buffer; // init spi SpiOpen(SpiReceiveHandler); // Check the IRQ line ulSpiIRQState = tSLInformation.ReadWlanInterruptPin(); // ASIC 1273 chip enable: toggle WLAN EN line tSLInformation.WriteWlanPin( WLAN_ENABLE ); if (ulSpiIRQState) { // wait till the IRQ line goes low while(tSLInformation.ReadWlanInterruptPin() != 0) { } } else { // wait till the IRQ line goes high and then low while(tSLInformation.ReadWlanInterruptPin() == 0) { } while(tSLInformation.ReadWlanInterruptPin() != 0) { } } SimpleLink_Init_Start(usPatchesAvailableAtHost); // Read Buffer's size and finish hci_command_send(HCI_CMND_READ_BUFFER_SIZE, tSLInformation.pucTxCommandBuffer, 0); SimpleLinkWaitEvent(HCI_CMND_READ_BUFFER_SIZE, 0); } void wlan_stop(void) { // ASIC 1273 chip disable tSLInformation.WriteWlanPin( WLAN_DISABLE ); // Wait till IRQ line goes high... while(tSLInformation.ReadWlanInterruptPin() == 0) { } // Free the used by WLAN Driver memory if (tSLInformation.pucTxCommandBuffer) { tSLInformation.pucTxCommandBuffer = 0; } SpiClose(); } #ifndef CC3000_TINY_DRIVER long wlan_connect(unsigned long ulSecType, char *ssid, long ssid_len, unsigned char *bssid, unsigned char *key, long key_len) { long ret; unsigned char *ptr; unsigned char *args; unsigned char bssid_zero[] = {0, 0, 0, 0, 0, 0}; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in command buffer args = UINT32_TO_STREAM(args, 0x0000001c); args = UINT32_TO_STREAM(args, ssid_len); args = UINT32_TO_STREAM(args, ulSecType); args = UINT32_TO_STREAM(args, 0x00000010 + ssid_len); args = UINT32_TO_STREAM(args, key_len); args = UINT16_TO_STREAM(args, 0); // padding shall be zeroed if(bssid) { ARRAY_TO_STREAM(args, bssid, ETH_ALEN); } else { ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN); } ARRAY_TO_STREAM(args, ssid, ssid_len); if(key_len && key) { ARRAY_TO_STREAM(args, key, key_len); } // Initiate a HCI command hci_command_send(HCI_CMND_WLAN_CONNECT, ptr, WLAN_CONNECT_PARAM_LEN + ssid_len + key_len - 1); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_CONNECT, &ret); errno = ret; return(ret); } #else long wlan_connect(char *ssid, long ssid_len) { long ret; unsigned char *ptr; unsigned char *args; unsigned char bssid_zero[] = {0, 0, 0, 0, 0, 0}; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in command buffer args = UINT32_TO_STREAM(args, 0x0000001c); args = UINT32_TO_STREAM(args, ssid_len); args = UINT32_TO_STREAM(args, 0); args = UINT32_TO_STREAM(args, 0x00000010 + ssid_len); args = UINT32_TO_STREAM(args, 0); args = UINT16_TO_STREAM(args, 0); // padding shall be zeroed ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN); ARRAY_TO_STREAM(args, ssid, ssid_len); // Initiate a HCI command hci_command_send(HCI_CMND_WLAN_CONNECT, ptr, WLAN_CONNECT_PARAM_LEN + ssid_len - 1); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_CONNECT, &ret); errno = ret; return(ret); } #endif long wlan_disconnect() { long ret; unsigned char *ptr; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; hci_command_send(HCI_CMND_WLAN_DISCONNECT, ptr, 0); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_DISCONNECT, &ret); errno = ret; return(ret); } long wlan_ioctl_set_connection_policy(unsigned long should_connect_to_open_ap, unsigned long ulShouldUseFastConnect, unsigned long ulUseProfiles) { long ret; unsigned char *ptr; unsigned char *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (unsigned char *)(ptr + HEADERS_SIZE_CMD); // Fill in HCI packet structure args = UINT32_TO_STREAM(args, should_connect_to_open_ap); args = UINT32_TO_STREAM(args, ulShouldUseFastConnect); args = UINT32_TO_STREAM(args, ulUseProfiles); // Initiate a HCI command hci_command_send(HCI_CMND_WLAN_IOCTL_SET_CONNECTION_POLICY, ptr, WLAN_SET_CONNECTION_POLICY_PARAMS_LEN); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_SET_CONNECTION_POLICY, &ret); return(ret); } #ifndef CC3000_TINY_DRIVER long wlan_add_profile(unsigned long ulSecType, unsigned char* ucSsid, unsigned long ulSsidLen, unsigned char *ucBssid, unsigned long ulPriority, unsigned long ulPairwiseCipher_Or_TxKeyLen, unsigned long ulGroupCipher_TxKeyIndex, unsigned long ulKeyMgmt, unsigned char* ucPf_OrKey, unsigned long ulPassPhraseLen) { unsigned short arg_len = 0x00; long ret; unsigned char *ptr; long i = 0; unsigned char *args; unsigned char bssid_zero[] = {0, 0, 0, 0, 0, 0}; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); args = UINT32_TO_STREAM(args, ulSecType); // Setup arguments in accordance with the security type switch (ulSecType) { //OPEN case WLAN_SEC_UNSEC: { args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, ulSsidLen); args = UINT16_TO_STREAM(args, 0); if(ucBssid) { ARRAY_TO_STREAM(args, ucBssid, ETH_ALEN); } else { ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN); } args = UINT32_TO_STREAM(args, ulPriority); ARRAY_TO_STREAM(args, ucSsid, ulSsidLen); arg_len = WLAN_ADD_PROFILE_NOSEC_PARAM_LEN + ulSsidLen; } break; //WEP case WLAN_SEC_WEP: { args = UINT32_TO_STREAM(args, 0x00000020); args = UINT32_TO_STREAM(args, ulSsidLen); args = UINT16_TO_STREAM(args, 0); if(ucBssid) { ARRAY_TO_STREAM(args, ucBssid, ETH_ALEN); } else { ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN); } args = UINT32_TO_STREAM(args, ulPriority); args = UINT32_TO_STREAM(args, 0x0000000C + ulSsidLen); args = UINT32_TO_STREAM(args, ulPairwiseCipher_Or_TxKeyLen); args = UINT32_TO_STREAM(args, ulGroupCipher_TxKeyIndex); ARRAY_TO_STREAM(args, ucSsid, ulSsidLen); for(i = 0; i < 4; i++) { unsigned char *p = &ucPf_OrKey[i * ulPairwiseCipher_Or_TxKeyLen]; ARRAY_TO_STREAM(args, p, ulPairwiseCipher_Or_TxKeyLen); } arg_len = WLAN_ADD_PROFILE_WEP_PARAM_LEN + ulSsidLen + ulPairwiseCipher_Or_TxKeyLen * 4; } break; //WPA //WPA2 case WLAN_SEC_WPA: case WLAN_SEC_WPA2: { args = UINT32_TO_STREAM(args, 0x00000028); args = UINT32_TO_STREAM(args, ulSsidLen); args = UINT16_TO_STREAM(args, 0); if(ucBssid) { ARRAY_TO_STREAM(args, ucBssid, ETH_ALEN); } else { ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN); } args = UINT32_TO_STREAM(args, ulPriority); args = UINT32_TO_STREAM(args, ulPairwiseCipher_Or_TxKeyLen); args = UINT32_TO_STREAM(args, ulGroupCipher_TxKeyIndex); args = UINT32_TO_STREAM(args, ulKeyMgmt); args = UINT32_TO_STREAM(args, 0x00000008 + ulSsidLen); args = UINT32_TO_STREAM(args, ulPassPhraseLen); ARRAY_TO_STREAM(args, ucSsid, ulSsidLen); ARRAY_TO_STREAM(args, ucPf_OrKey, ulPassPhraseLen); arg_len = WLAN_ADD_PROFILE_WPA_PARAM_LEN + ulSsidLen + ulPassPhraseLen; } break; } // Initiate a HCI command hci_command_send(HCI_CMND_WLAN_IOCTL_ADD_PROFILE, ptr, arg_len); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_ADD_PROFILE, &ret); return(ret); } #else long wlan_add_profile(unsigned long ulSecType, unsigned char* ucSsid, unsigned long ulSsidLen, unsigned char *ucBssid, unsigned long ulPriority, unsigned long ulPairwiseCipher_Or_TxKeyLen, unsigned long ulGroupCipher_TxKeyIndex, unsigned long ulKeyMgmt, unsigned char* ucPf_OrKey, unsigned long ulPassPhraseLen) { return -1; } #endif long wlan_ioctl_del_profile(unsigned long ulIndex) { long ret; unsigned char *ptr; unsigned char *args; ptr = tSLInformation.pucTxCommandBuffer; args = (unsigned char *)(ptr + HEADERS_SIZE_CMD); // Fill in HCI packet structure args = UINT32_TO_STREAM(args, ulIndex); ret = EFAIL; // Initiate a HCI command hci_command_send(HCI_CMND_WLAN_IOCTL_DEL_PROFILE, ptr, WLAN_DEL_PROFILE_PARAMS_LEN); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_DEL_PROFILE, &ret); return(ret); } #ifndef CC3000_TINY_DRIVER long wlan_ioctl_get_scan_results(unsigned long ulScanTimeout, unsigned char *ucResults) { unsigned char *ptr; unsigned char *args; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in temporary command buffer args = UINT32_TO_STREAM(args, ulScanTimeout); // Initiate a HCI command hci_command_send(HCI_CMND_WLAN_IOCTL_GET_SCAN_RESULTS, ptr, WLAN_GET_SCAN_RESULTS_PARAMS_LEN); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_GET_SCAN_RESULTS, ucResults); return(0); } #endif #ifndef CC3000_TINY_DRIVER long wlan_ioctl_set_scan_params(unsigned long uiEnable, unsigned long uiMinDwellTime, unsigned long uiMaxDwellTime, unsigned long uiNumOfProbeRequests, unsigned long uiChannelMask, long iRSSIThreshold, unsigned long uiSNRThreshold, unsigned long uiDefaultTxPower, unsigned long *aiIntervalList) { unsigned long uiRes; unsigned char *ptr; unsigned char *args; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in temporary command buffer args = UINT32_TO_STREAM(args, 36); args = UINT32_TO_STREAM(args, uiEnable); args = UINT32_TO_STREAM(args, uiMinDwellTime); args = UINT32_TO_STREAM(args, uiMaxDwellTime); args = UINT32_TO_STREAM(args, uiNumOfProbeRequests); args = UINT32_TO_STREAM(args, uiChannelMask); args = UINT32_TO_STREAM(args, iRSSIThreshold); args = UINT32_TO_STREAM(args, uiSNRThreshold); args = UINT32_TO_STREAM(args, uiDefaultTxPower); ARRAY_TO_STREAM(args, aiIntervalList, sizeof(unsigned long) * SL_SET_SCAN_PARAMS_INTERVAL_LIST_SIZE); // Initiate a HCI command hci_command_send(HCI_CMND_WLAN_IOCTL_SET_SCANPARAM, ptr, WLAN_SET_SCAN_PARAMS_LEN); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_SET_SCANPARAM, &uiRes); return(uiRes); } #endif long wlan_set_event_mask(unsigned long ulMask) { long ret; unsigned char *ptr; unsigned char *args; if ((ulMask & HCI_EVNT_WLAN_TX_COMPLETE) == HCI_EVNT_WLAN_TX_COMPLETE) { tSLInformation.InformHostOnTxComplete = 0; // Since an event is a virtual event - i.e. it is not coming from CC3000 // there is no need to send anything to the device if it was an only event if (ulMask == HCI_EVNT_WLAN_TX_COMPLETE) { return 0; } ulMask &= ~HCI_EVNT_WLAN_TX_COMPLETE; ulMask |= HCI_EVNT_WLAN_UNSOL_BASE; } else { tSLInformation.InformHostOnTxComplete = 1; } ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (unsigned char *)(ptr + HEADERS_SIZE_CMD); // Fill in HCI packet structure args = UINT32_TO_STREAM(args, ulMask); // Initiate a HCI command hci_command_send(HCI_CMND_EVENT_MASK, ptr, WLAN_SET_MASK_PARAMS_LEN); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_EVENT_MASK, &ret); return(ret); } #ifndef CC3000_TINY_DRIVER long wlan_ioctl_statusget(void) { long ret; unsigned char *ptr; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; hci_command_send(HCI_CMND_WLAN_IOCTL_STATUSGET,ptr, 0); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_STATUSGET, &ret); return(ret); } #endif long wlan_smart_config_start(unsigned long algoEncryptedFlag) { long ret; unsigned char *ptr; unsigned char *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (unsigned char *)(ptr + HEADERS_SIZE_CMD); // Fill in HCI packet structure args = UINT32_TO_STREAM(args, algoEncryptedFlag); ret = EFAIL; hci_command_send(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_START, ptr, WLAN_SMART_CONFIG_START_PARAMS_LEN); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_START, &ret); return(ret); } long wlan_smart_config_stop(void) { long ret; unsigned char *ptr; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; hci_command_send(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_STOP, ptr, 0); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_STOP, &ret); return(ret); } long wlan_smart_config_set_prefix(char* cNewPrefix) { long ret; unsigned char *ptr; unsigned char *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); if (cNewPrefix == NULL) return ret; else // with the new Smart Config, prefix must be TTT { *cNewPrefix = 'T'; *(cNewPrefix + 1) = 'T'; *(cNewPrefix + 2) = 'T'; } ARRAY_TO_STREAM(args, cNewPrefix, SL_SIMPLE_CONFIG_PREFIX_LENGTH); hci_command_send(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_SET_PREFIX, ptr, SL_SIMPLE_CONFIG_PREFIX_LENGTH); // Wait for command complete event SimpleLinkWaitEvent(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_SET_PREFIX, &ret); return(ret); } #ifndef CC3000_UNENCRYPTED_SMART_CONFIG long wlan_smart_config_process() { signed long returnValue; unsigned long ssidLen, keyLen; unsigned char *decKeyPtr; unsigned char *ssidPtr; // read the key from EEPROM - fileID 12 returnValue = aes_read_key(key); if (returnValue != 0) return returnValue; // read the received data from fileID #13 and parse it according to the followings: // 1) SSID LEN - not encrypted // 2) SSID - not encrypted // 3) KEY LEN - not encrypted. always 32 bytes long // 4) Security type - not encrypted // 5) KEY - encrypted together with true key length as the first byte in KEY // to elaborate, there are two corner cases: // 1) the KEY is 32 bytes long. In this case, the first byte does not represent KEY length // 2) the KEY is 31 bytes long. In this case, the first byte represent KEY length and equals 31 returnValue = nvmem_read(NVMEM_SHARED_MEM_FILEID, SMART_CONFIG_PROFILE_SIZE, 0, profileArray); if (returnValue != 0) return returnValue; ssidPtr = &profileArray[1]; ssidLen = profileArray[0]; decKeyPtr = &profileArray[profileArray[0] + 3]; aes_decrypt(decKeyPtr, key); if (profileArray[profileArray[0] + 1] > 16) aes_decrypt((unsigned char *)(decKeyPtr + 16), key); if (*(unsigned char *)(decKeyPtr +31) != 0) { if (*decKeyPtr == 31) { keyLen = 31; decKeyPtr++; } else { keyLen = 32; } } else { keyLen = *decKeyPtr; decKeyPtr++; } // add a profile switch (profileArray[profileArray[0] + 2]) { case WLAN_SEC_UNSEC://None { returnValue = wlan_add_profile(profileArray[profileArray[0] + 2], // security type ssidPtr, // SSID ssidLen, // SSID length NULL, // BSSID 1, // Priority 0, 0, 0, 0, 0); break; } case WLAN_SEC_WEP://WEP { returnValue = wlan_add_profile(profileArray[profileArray[0] + 2], // security type ssidPtr, // SSID ssidLen, // SSID length NULL, // BSSID 1, // Priority keyLen, // KEY length 0, // KEY index 0, decKeyPtr, // KEY 0); break; } case WLAN_SEC_WPA: //WPA case WLAN_SEC_WPA2: //WPA2 { returnValue = wlan_add_profile(WLAN_SEC_WPA2, // security type ssidPtr, ssidLen, NULL, // BSSID 1, // Priority 0x18, // PairwiseCipher 0x1e, // GroupCipher 2, // KEY management decKeyPtr, // KEY keyLen); // KEY length break; } } return returnValue; } #endif //CC3000_UNENCRYPTED_SMART_CONFIG