firmware.h File Reference

#include "includes.h"

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Functions
int	getfwversion (usbdevice *kb)
int	cmd_fwupdate (usbdevice *kb, usbmode *dummy1, int nnumber, int dummy2, const char *path)

Function Documentation

int cmd_fwupdate	(	usbdevice *	kb,
		usbmode *	dummy1,
		int	nnumber,
		int	dummy2,
		const char *	path
	)

Definition at line 154 of file firmware.c.

References FEAT_FWUPDATE, FW_NOFILE, FW_OK, FW_USBFAIL, FW_WRONGDEV, fwupdate(), HAS_FEATURES, nprintf(), and usb_tryreset().

                                                                                           {
    (void)dummy1;
    (void)dummy2;

    if(!HAS_FEATURES(kb, FEAT_FWUPDATE))
        return 0;
    // Update the firmware
    int ret = fwupdate(kb, path, nnumber);
    while(ret == FW_USBFAIL){
        // Try to reset the device if it fails
        if(usb_tryreset(kb))
            break;
        ret = fwupdate(kb, path, nnumber);
    }
    switch(ret){
    case FW_OK:
        nprintf(kb, nnumber, 0, "fwupdate %s ok\n", path);
        break;
    case FW_NOFILE:
    case FW_WRONGDEV:
        nprintf(kb, nnumber, 0, "fwupdate %s invalid\n", path);
        break;
    case FW_USBFAIL:
        nprintf(kb, nnumber, 0, "fwupdate %s fail\n", path);
        return -1;
    }
    return 0;
}

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int getfwversion

(

usbdevice *

kb

)

Definition at line 11 of file firmware.c.

References ckb_err, ckb_warn, FEAT_POLLRATE, usbdevice::features, usbdevice::fwversion, MSG_SIZE, usbdevice::pollrate, usbdevice::product, usbrecv, and usbdevice::vendor.

Referenced by _start_dev().

                               {
    // Ask board for firmware info
    uchar data_pkt[MSG_SIZE] = { 0x0e, 0x01, 0 };
    uchar in_pkt[MSG_SIZE];
    if(!usbrecv(kb, data_pkt, in_pkt))
        return -1;
    if(in_pkt[0] != 0x0e || in_pkt[1] != 0x01){
        ckb_err("Bad input header\n");
        return -1;
    }
    short vendor, product, version, bootloader;
    // Copy the vendor ID, product ID, version, and poll rate from the firmware data
    memcpy(&version, in_pkt + 8, 2);
    memcpy(&bootloader, in_pkt + 10, 2);
    memcpy(&vendor, in_pkt + 12, 2);
    memcpy(&product, in_pkt + 14, 2);
    char poll = in_pkt[16];
    if(poll <= 0){
        poll = -1;
        kb->features &= ~FEAT_POLLRATE;
    }
    // Print a warning if the message didn't match the expected data
    if(vendor != kb->vendor)
        ckb_warn("Got vendor ID %04x (expected %04x)\n", vendor, kb->vendor);
    if(product != kb->product)
        ckb_warn("Got product ID %04x (expected %04x)\n", product, kb->product);
    // Set firmware version and poll rate
    if(version == 0 || bootloader == 0){
        // Needs firmware update
        kb->fwversion = 0;
        kb->pollrate = -1;
    } else {
        if(version != kb->fwversion && kb->fwversion != 0)
            ckb_warn("Got firmware version %04x (expected %04x)\n", version, kb->fwversion);
        kb->fwversion = version;
        kb->pollrate = poll;
    }
    return 0;
}

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