Diff: src/admw_1001.c

Revision:

13:97cb32670539

Parent:

10:14954555be2a

Child:

14:266ab283b086

--- a/src/admw_1001.c	Wed Jul 24 08:51:31 2019 +0000
+++ b/src/admw_1001.c	Thu Jul 25 06:38:45 2019 +0000
@@ -54,8 +54,8 @@
 #include "admw1001/admw1001_host_comms.h"
 
 #include "crc16.h"
-#define VERSIONID_MAJOR 1
-#define VERSIONID_MINOR 4
+#define VERSIONID_MAJOR 2
+#define VERSIONID_MINOR 0
 
 uint32_t    getDataCnt = 0;
 
@@ -2697,3 +2697,149 @@
 
     return ADMW_SUCCESS;
 }
+ADMW_RESULT admw1001_getFirmwareStatus(
+    ADMW_DEVICE_HANDLE   const hDevice,
+    bool                  * const bFirmwareStatus)
+{
+    bool bitCommand;
+    ADMW_RESULT eRet;
+    uint8_t pinreg = 0x1;
+
+    ADMW_DEVICE_CONTEXT *pCtx = hDevice;
+    static uint8_t DataBuffer[SPI_BUFFER_SIZE] = {0};
+    uint16_t nSize;
+
+    //Construct Read Status command
+    DataBuffer[0] = 0x07;
+    DataBuffer[1] = 0x0E;   //Packet ID
+
+    DataBuffer[2] = 0x00;
+    DataBuffer[3] = 0x00;   //Data words
+
+    DataBuffer[4] = 0x53;
+    DataBuffer[5] = 0x00;   //Command ID
+
+    DataBuffer[6] = 0x00;
+    DataBuffer[7] = 0x00;
+    DataBuffer[8] = 0x00;
+    DataBuffer[9] = 0x00;   //Address
+
+    DataBuffer[10] = 0x53;
+    DataBuffer[11] = 0x00;    
+    DataBuffer[12] = 0x00;
+    DataBuffer[13] = 0x00;  //Checksum
+
+    nSize = SFL_READ_STATUS_HDR_SIZE;
+
+    do
+    {
+        // Get the SFL command irq pin to check if SFL is ready to receive commands
+        // Status pin is not checked since SFL is just booted, there should not be any issue with SFL
+        eRet = admw_GetGpioState( hDevice, ADMW_GPIO_PIN_DATAREADY, &bitCommand );
+        if( eRet != ADMW_SUCCESS) {
+          return eRet;
+        }
+
+        // Command IRQ pin should be low and Status IRQ pin should be high for SFL to be in good state and ready to recieve commands
+        // pinreg == '0x00' - Error occured in SFL 
+        // pinreg == '0x01' - SFL is ready to recieve commands
+        // pinreg == '0x02' - Error occured in handling any commands in SFL
+        // pinreg == '0x03' - SFL not booted
+
+        pinreg = (bitCommand);
+    
+    }while(pinreg != 0x0u);
+
+    eRet = admw_SpiTransfer(pCtx->hSpi, DataBuffer, NULL,
+                                     nSize, false);
+    if (eRet)
+    {
+        return eRet;
+    }
+
+    //wait for command irq line to go low after sending read status header
+    wait_ms( 100 );
+
+    do
+    {
+        // Get the SFL command irq pin to check if SFL is ready to receive commands
+        // Status pin is not checked since SFL is just booted, there should not be any issue with SFL      
+        eRet = admw_GetGpioState( hDevice, ADMW_GPIO_PIN_DATAREADY, &bitCommand );
+        if( eRet != ADMW_SUCCESS) {
+          return eRet;
+        }
+        
+        // Command IRQ pin should be low and Status IRQ pin should be high for SFL to be in good state and ready to recieve commands
+        // pinreg == '0x00' - Error occured in SFL 
+        // pinreg == '0x01' - SFL is ready to recieve commands
+        // pinreg == '0x02' - Error occured in handling any commands in SFL
+        // pinreg == '0x03' - SFL not booted
+        
+        pinreg = (bitCommand);
+
+    }while(pinreg != 0x0u);
+
+    nSize = SFL_READ_STATUS_RESPONSE_SIZE;
+
+    eRet = admw_SpiReceive(pCtx->hSpi, NULL, DataBuffer,
+                                     nSize, false);
+
+    if (eRet)
+    {
+        return eRet;
+    }
+
+    //Verifying the application version from the response to check if firmware is present or not
+    /* 
+        Flash Memory description
+        ______________
+       |  Secure      | 0x0000 0000
+       |  Flashloader |
+       |______________| 0x0000 3BFF
+       |  Security    |------------------     
+       |  Page        | 0x0000 3C00
+       |              |
+       |______________| 0x0000 3FFF
+       |              |------------------
+       |  App Info    | 0x0000 4000
+       |   Page       |
+       |______________| 0x0000 4800
+       |              |------------------
+       | Application  |
+       |   Image      |  Application resides only in this region
+       |______________|------------------
+       |  Reserved    | 0x0003 FFF8
+       |     for      | Reserved memory region
+       |  Signature   | 0x0003 FFFF
+       |______________|------------------
+
+       Application version is stored in the App Info Page, the app version is updated in this region everytime the new application firmware is downloaded.
+       Here we verify if Application version is present in the Read Status response
+       If the app version bytes value is 0xFFFFFFFF then there is no firmware else there exist a firmware
+    
+       Read Status Response:
+        ____________________________________________________________________________________________________________________________________
+       |                             |                  |                              |                              |                     |
+       |uint16_t nFlashLoaderVersion | uint16_t nStatus | uint32_t nApplicationVersion | uint32_t nApplicationHash[8] | uint16_t nChecksum  |
+       |_____________________________|__________________|______________________________|______________________________|_____________________|
+    
+     */
+
+    if( ((DataBuffer[4] == 0xFF) &&
+        (DataBuffer[5] == 0xFF) && 
+        (DataBuffer[6] == 0xFF) &&
+        (DataBuffer[7] == 0xFF)) ||
+        ((DataBuffer[4] == 0x00) &&
+        (DataBuffer[5] == 0x00) && 
+        (DataBuffer[6] == 0x00) &&
+        (DataBuffer[7] == 0x00)))
+    {
+      *bFirmwareStatus = false;
+    }
+    else
+    {
+      *bFirmwareStatus = true;
+    }
+
+    return eRet;
+}