wifi_firmware_updater.cpp File Reference

Functions
static bool	isBigEndian ()
static uint32_t	fromNetwork32 (uint32_t from)
static uint16_t	fromNetwork16 (uint16_t from)
static uint32_t	toNetwork32 (uint32_t to)
static uint16_t	toNetwork16 (uint16_t to)
struct	__attribute__ ((__packed__))
static int	readch ()
static void	receivePacket (UartPacket *pkt, uint8_t *payload)
static void	serialPrint (const uint8_t *data, size_t length)
static void	serialPrintStr (const char *str)
void	startWifiUpdater ()

Variables
	UartPacket
static const int	MAX_PAYLOAD_SIZE = 256
static UartPacket	pkt
static uint8_t	payload [MAX_PAYLOAD_SIZE]
static WifiUpdaterThread	wifiUpdater

Function Documentation

__attribute__()

struct __attribute__

(

(__packed__)

)

Definition at line 43 of file wifi_firmware_updater.cpp.

                                           {
    uint8_t command;
    uint32_t address;
    uint32_t arg1;
    uint16_t payloadLength;
 
    // payloadLenght bytes of data follows...
} UartPacket;

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fromNetwork16()

static uint16_t fromNetwork16 ( uint16_t  from )

static

Definition at line 26 of file wifi_firmware_updater.cpp.

                                             {
    static bool be = isBigEndian();
    if (be) {
        return from;
    } else {
        uint8_t *pFrom = reinterpret_cast<uint8_t *>(&from);
        uint16_t to;
        to = pFrom[0]; to <<= 8;
        to |= pFrom[1];
        return to;
    }
}

Referenced by __attribute__(), and receivePacket().

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fromNetwork32()

static uint32_t fromNetwork32 ( uint32_t  from )

static

Definition at line 11 of file wifi_firmware_updater.cpp.

                                             {
    static const bool be = isBigEndian();
    if (be) {
        return from;
    } else {
        uint8_t *pFrom = reinterpret_cast<uint8_t *>(&from);
        uint32_t to;
        to = pFrom[0]; to <<= 8;
        to |= pFrom[1]; to <<= 8;
        to |= pFrom[2]; to <<= 8;
        to |= pFrom[3];
        return to;
    }
}

Referenced by receivePacket(), and toNetwork32().

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isBigEndian()

static bool isBigEndian ( )

static

Definition at line 5 of file wifi_firmware_updater.cpp.

                          {
    uint32_t test = 0x11223344;
    uint8_t *pTest = reinterpret_cast<uint8_t *>(&test);
    return pTest[0] == 0x11;
}

Referenced by fromNetwork16(), and fromNetwork32().

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readch()

static int readch ( )

static

Definition at line 65 of file wifi_firmware_updater.cpp.

                    {
    uint8_t buf;
    int ret = chnReadTimeout(&SDU1, &buf, 1, TIME_MS2I(1));
 
    if (ret == 0) {
        return -1;
    } else {
        return (int)buf;
    }
}

Referenced by receivePacket().

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receivePacket()

static void receivePacket ( UartPacket *  pkt, uint8_t *  payload  )

static

Definition at line 76 of file wifi_firmware_updater.cpp.

                                                             {
    // Read command
    uint8_t *p = reinterpret_cast<uint8_t *>(pkt);
    uint16_t l = sizeof(UartPacket);
    while (l > 0) {
        int c = readch();
        if (c == -1)
        continue;
        *p++ = c;
        l--;
    }
 
    // Convert parameters from network byte order to cpu byte order
    pkt->address = fromNetwork32(pkt->address);
    pkt->arg1 = fromNetwork32(pkt->arg1);
    pkt->payloadLength = fromNetwork16(pkt->payloadLength);
 
    // Read payload
    l = pkt->payloadLength;
    while (l > 0) {
        int c = readch();
        if (c == -1)
        continue;
        *payload++ = c;
        l--;
    }
}

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serialPrint()

static void serialPrint ( const uint8_t *  data, size_t  length  )

static

Definition at line 109 of file wifi_firmware_updater.cpp.

                                                            {
    chnWriteTimeout(&SDU1, data, length, TIME_MS2I(100));
}

Referenced by serialPrintStr().

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serialPrintStr()

static void serialPrintStr ( const char *  str )

static

Definition at line 113 of file wifi_firmware_updater.cpp.

                                            {
    size_t len = strlen(str);
    serialPrint(reinterpret_cast<const uint8_t*>(str), len);
}

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startWifiUpdater()

void startWifiUpdater

(

)

Definition at line 188 of file wifi_firmware_updater.cpp.

                        {
    wifiUpdater.start();
}

toNetwork16()

static uint16_t toNetwork16 ( uint16_t  to )

static

Definition at line 43 of file wifi_firmware_updater.cpp.

                                         {
    return fromNetwork16(to);
}

toNetwork32()

static uint32_t toNetwork32 ( uint32_t  to )

static

Definition at line 39 of file wifi_firmware_updater.cpp.

                                         {
    return fromNetwork32(to);
}

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Variable Documentation

MAX_PAYLOAD_SIZE

const int MAX_PAYLOAD_SIZE = 256

static

Definition at line 57 of file wifi_firmware_updater.cpp.

payload

uint8_t payload[MAX_PAYLOAD_SIZE]

static

Definition at line 107 of file wifi_firmware_updater.cpp.

Referenced by receivePacket().

pkt

UartPacket pkt

static

Definition at line 106 of file wifi_firmware_updater.cpp.

Referenced by receivePacket().

UartPacket

UartPacket

Definition at line 55 of file wifi_firmware_updater.cpp.

Referenced by receivePacket().

wifiUpdater

WifiUpdaterThread wifiUpdater

static

Definition at line 186 of file wifi_firmware_updater.cpp.

Referenced by startWifiUpdater().

Go to the source code of this file.