Ble Demo with Raspberry PI

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_DEMO_SPI_HARDCODE by HM_IOT_Demo

main.cpp

Committer:
hmiot
Date:
2017-01-25
Revision:
9:b967a01810e1
Parent:
8:285ebd0e83fb
Child:
10:5e5fa5bf77b5

File content as of revision 9:b967a01810e1:

/************************************************************************
*                                                                       *
*                                                                       *
************************************************************************/

#include "hm_config.h"
//#include "rtos.h"

DiscoveredCharacteristic lightCharacteristic;
s_serviceInfo lightChar = {NULL,NULL,NULL,NULL};
Serial pc(USBTX, USBRX);

void bleint();
void SPI_Slave_read();

SPISlave spiSlave(P0_9, P0_11, P0_8, P0_10);

bool serviceDiscover = true;
int spiRX[4];
   // uint8_t spiTX[4];
uint8_t bufferSize;

void advertisementCallback(const Gap::AdvertisementCallbackParams_t *params) {
    uint8_t con_status =0;
     //0x51 for Magic light 
    //0x5A
    if (params->peerAddr[0] == 0x51) { // 0x2F for red bear1.5 /* !ALERT! Alter this filter to suit your device. */
       
           pc.printf("adv peerAddr[%02x %02x %02x %02x %02x %02x] rssi %d, isScanResponse %u, AdvertisementType %u\r\n",
           params->peerAddr[5], params->peerAddr[4], params->peerAddr[3], params->peerAddr[2], params->peerAddr[1], params->peerAddr[0],
           params->rssi, params->isScanResponse, params->type);
           pc.printf("Data Length : %d\r\n",params->advertisingDataLen);
           con_status = BLE::Instance().gap().connect(params->peerAddr, Gap::ADDR_TYPE_PUBLIC, NULL, NULL);
           pc.printf("Connection Status : %d\r\n",con_status);
           connect_status = 1;
           BLE::Instance().gap().stopScan();
           
    }else{
        printf("Not Matched your device\r\n");
        return;
    }
 }

void serviceDiscoveryCallback(const DiscoveredService *service) {
    pc.printf("Service Discovery Callback\r\n");
    if (service->getUUID().shortOrLong() == UUID::UUID_TYPE_SHORT) {
        pc.printf("S UUID-%x attrs[%u %u]\r\n", service->getUUID().getShortUUID(), service->getStartHandle(), service->getEndHandle());
    } else {
        pc.printf("S UUID-");
        const uint8_t *longUUIDBytes = service->getUUID().getBaseUUID();
        for (unsigned i = 0; i < UUID::LENGTH_OF_LONG_UUID; i++) {
            printf("%02x", longUUIDBytes[i]);
        }
        pc.printf(" attrs[%u %u]\r\n", service->getStartHandle(), service->getEndHandle());
    }
}

void characteristicDiscoveryCallback(const DiscoveredCharacteristic *characteristicP) {
    pc.printf("  C UUID-%x valueAttr[%u] props[%x]\r\n", characteristicP->getUUID().getShortUUID(), characteristicP->getValueHandle(), (uint8_t)characteristicP->getProperties().broadcast());
    
    if (characteristicP->getUUID().getShortUUID() == 0xffe9) { /* !ALERT! Alter this filter to suit your device. */
       lightCharacteristic = *characteristicP;
       pc.printf("Matched char UUID\r\n");
       printf("Conn Handle = %dand %d \r\n",characteristicP->getConnectionHandle(), lightCharacteristic.getConnectionHandle());
       printf("Value Handle = %d and %d\r\n",characteristicP->getValueHandle(),lightCharacteristic.getValueHandle());
       charDiscover = 1;
       serviceDiscover = true;
       AddCharNodes(lightCharacteristic);
     }else {
        printf("Not Matched char UUID\r\n");
    }
}

void AddCharNodes(DiscoveredCharacteristic light_Characteristic)
{
    printf("Add Char Nodes\r\n");
    lightCharacteristic_t *ptr_temp_char = NULL;
    ptr_temp_char = lightChar.services_Char[0];

    if(NULL == ptr_temp_char)
    {
        ptr_temp_char = (lightCharacteristic_t *)malloc(sizeof(lightCharacteristic_t));
        lightChar.services_Char[0] = ptr_temp_char;
    }
    else
    {    
        while(NULL != ptr_temp_char->nextChar)
                {
                    ptr_temp_char = ptr_temp_char->nextChar;
                }  
            
        /* add a new node */
        ptr_temp_char->nextChar = (lightCharacteristic_t *)malloc(sizeof(lightCharacteristic_t));           
        ptr_temp_char = ptr_temp_char->nextChar;
    }
            
    /* assign data to the node */
    ptr_temp_char->u_characteristicID = 1;
    printf("Conn Handle = %d\r\n",light_Characteristic.getConnectionHandle());
    printf("Value Handle = %d\r\n",light_Characteristic.getValueHandle());
    ptr_temp_char->connHandle = light_Characteristic.getConnectionHandle();
    ptr_temp_char->valueHandle = light_Characteristic.getValueHandle();
    ptr_temp_char->nextChar = NULL;  
}

void discoveryTerminationCallback(Gap::Handle_t connectionHandle) {
    pc.printf("terminated SD for handle %u\r\n", connectionHandle);
    serviceDiscover = false;
}

void connectionCallback(const Gap::ConnectionCallbackParams_t *params) {
    pc.printf("Connection Callback\n\r");
    if (params->role == Gap::CENTRAL) {
        pc.printf("Service and characterstics discovery callback\r\n");
        BLE::Instance().gattClient().onServiceDiscoveryTermination(discoveryTerminationCallback);
        BLE::Instance().gattClient().launchServiceDiscovery(params->handle, serviceDiscoveryCallback, characteristicDiscoveryCallback, 0xffe5, 0xffe9);
    }
}

void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) {
    pc.printf("disconnected\r\n");
    BLE::Instance().gap().startScan(advertisementCallback);
}


/**
 * Callback triggered when the ble initialization process has finished
 */
void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
{
    BLE&        ble   = params->ble;
    
    pc.printf("Ble Init\n\r");
    /* Ensure that it is the default instance of BLE */
    if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
        return;
    }
 
    ble.gap().onConnection(connectionCallback);
    ble.gap().onDisconnection(disconnectionCallback);
    
    ble.gap().setScanParams(1000, 800);
    ble.gap().startScan(advertisementCallback);
}

void light_actions(int service_char[]){
    uint8_t *write_data=NULL;
    //={0x56,0xff,0x00,0x00,0x00,0xf0,0xaa};
    write_data = new uint8_t[7];
    lightCharacteristic_t *ptr_tmp = NULL;
    ptr_tmp = lightChar.services_Char[service_char[1]-1];
  //  printf("Conn Handle = %d\r\n",ptr_tmp->connHandle);
   // printf("Value Handle = %d\r\n",ptr_tmp->valueHandle);
              if(connect_status)
               {

                   switch(service_char[2])
                   {
                       case TURN_OFF: // off 
                            write_data[0]=0x56;
                            write_data[1]=0x00;
                            write_data[2]=0x00;
                            write_data[3]=0x00;
                            write_data[4]=0x00;
                            write_data[5]=0xf0;
                            write_data[6]=0xaa;
                            error_status = BLE::Instance().gattClient().write(GattClient::GATT_OP_WRITE_CMD,ptr_tmp->connHandle,ptr_tmp->valueHandle,7,write_data);
                            break;
                       
                       case TURN_ON: //on
                            write_data[0]=0x56;
                            write_data[1]=0xff;
                            write_data[2]=0xff;
                            write_data[3]=0xff;
                            write_data[4]=0x00;
                            write_data[5]=0xf0;
                            write_data[6]=0xaa; 
                            error_status = BLE::Instance().gattClient().write(GattClient::GATT_OP_WRITE_CMD,ptr_tmp->connHandle,ptr_tmp->valueHandle,7,write_data);
                            break;
                       
                       case COLOR: // Color
                            write_data[0]=0x56;
                            write_data[1]=lightColor[service_char[3]][0];//0xff
                            write_data[2]=lightColor[service_char[3]][1];//0x00;
                            write_data[3]=lightColor[service_char[3]][2];//0x00;
                            write_data[4]=0x00;
                            write_data[5]=0xf0;
                            write_data[6]=0xaa;
                            //datancpy(pre_write_data, (char *)write_data,6);
                            error_status = BLE::Instance().gattClient().write(GattClient::GATT_OP_WRITE_CMD,ptr_tmp->connHandle,ptr_tmp->valueHandle,7,write_data);
                            break;
                       
                       default:
                          printf("Invalid Options\r\n");
                   } 
                delete [] write_data;
            } 
}

void datancpy(char *pre_write, char *writeData, int data_size){
    int numCount;
    for(numCount=0; numCount <= data_size; numCount++){
        pre_write[numCount] = writeData[numCount];
    }
    
}

void bleint()
{
    printf("Init\r\n");
    BLE &ble = BLE::Instance();
    BLE::Instance().init(bleInitComplete);
}


int main()
{
    // Serial port configuration
    pc.baud(9600);
    wait(8.0);
    pc.printf("Start\n\r");
    spiSlave.reply(191);
    // Initialize the Ble
    bleint();
     while(1){
        //printf("loop\r\n");
        if (serviceDiscover || BLE::Instance().gattClient().isServiceDiscoveryActive()){ 
            BLE::Instance().waitForEvent();
     
        }else{ 
          // printf("Slave Read loop\r\n");
           SPI_Slave_read();
        }
    
    }

}

void SPI_Slave_read(){
    
    wait_us(2);
    if(spiSlave.receive()){
    // printf("Slave Read loop1\r\n");
    spiRX[bufferSize] = spiSlave.read();
    spiSlave.reply(spiRX[bufferSize]);
    bufferSize++;
        if(bufferSize>=4){
            bufferSize=0;
            light_actions(spiRX);
         //     printf("Receive\n\r");
        }
    }    
}