// Wraper around original SCardTransmit that does the actuall logging
LONG WINAPI HookedSCardTransmit(SCARDHANDLE hCard, LPCSCARD_IO_REQUEST pioSendPci, LPCBYTE pbSendBuffer, DWORD cbSendLength, LPSCARD_IO_REQUEST pioRecvPci, LPBYTE pbRecvBuffer,LPDWORD pcbRecvLength){
LONG result = NULL;
char *pcSendBufferHex = (char *)malloc(cbSendLength*3+1);
char *pcRecvBufferHex;
DWORD dwCount;
HANDLE hLogFile;
//log send buffer
byte2hex(pbSendBuffer,cbSendLength,pcSendBufferHex);
hLogFile = CreateFile(pathToLog, GENERIC_WRITE,0,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
if(hLogFile != INVALID_HANDLE_VALUE){
SetFilePointer(hLogFile, 0, 0, FILE_END);
WriteFile(hLogFile, "Winscard!SCardTransmit:\n", 24, &dwCount,NULL);
WriteFile(hLogFile, ">>> ", 4, &dwCount,NULL);
WriteFile(hLogFile, pcSendBufferHex,strlen(pcSendBufferHex) , &dwCount,NULL);
WriteFile(hLogFile, "\r\n",2 , &dwCount,NULL);
}
free(pcSendBufferHex);
//invoke original
if(OrigSCardTransmit != NULL){
result = (*OrigSCardTransmit)(hCard,pioSendPci,pbSendBuffer,cbSendLength,pioRecvPci,pbRecvBuffer,pcbRecvLength);
}
//log receive buffer
pcRecvBufferHex = (char *)malloc(*pcbRecvLength*3+1);
byte2hex(pbRecvBuffer,*pcbRecvLength,pcRecvBufferHex);
if(hLogFile != INVALID_HANDLE_VALUE){
WriteFile(hLogFile, "<<< ", 4, &dwCount,NULL);
WriteFile(hLogFile, pcRecvBufferHex,strlen(pcRecvBufferHex) , &dwCount,NULL);
WriteFile(hLogFile, "\r\n",2 , &dwCount,NULL);
CloseHandle(hLogFile);
}
free(pcRecvBufferHex);
return result;
}
char *bin2hex(unsigned char *bin, char *hex, int len) {
int i;
for(i = 0; i < len; i++) {
unsigned char byte = *bin++;
unsigned char hbyte = (byte & 0xF0) >> 4;
unsigned char lbyte = byte & 0xF;
*hex++ = byte2hex(hbyte);
*hex++ = byte2hex(lbyte);
}
*hex++ = 0;
return hex;
}
//
// Update keyboard status and issue events on it if necessary.
// This function doesn't block, but is normally only called when
// there is known to be some data waiting to be read from the keyboard.
//
BOOL GsCheckKeyboardEvent(void)
{
MWKEY ch; // latest character
MWKEYMOD modifiers; // latest modifiers
MWSCANCODE scancode; // latest modifiers
int keystatus; // latest keyboard status
// Read the latest keyboard status:
display_puts("key read\n");
keystatus = GdReadKeyboard(&ch, &modifiers, &scancode);
if(keystatus < 0) {
if(keystatus == -2) // special case for ESC pressed
GsTerminate();
display_puts("Kbd error\n");
return FALSE;
} else if(keystatus) { // Deliver events as appropriate:
byte2hex(modifiers,s);
display_puts("kbd '");
display_putc(ch);
display_puts("',");
display_puts(s);
display_puts("\n");
return TRUE;
}
return FALSE;
}
void main(int argc, char**argv)
{
int ch,i,j;
FILE *fp1;
char *pathname;
char hexnum[] = { " " };
char hexdata[] = { "[ 0 1 2 3 4 5 6 7 8 9 A B C D E F]" };
char chardata[] = { "[0123456789ABCDEF]" };
if(MAXINTx2 < 2*sizeof(int)) {
printf("MAXINTx2 is not large enough!");
exit(1);
}
if(argc>2) {
printf("Too many parameters!\n");
exit(1);
}
else if(argc==2)
pathname = argv[1];
else {
pathname = calloc(MAXPATH, sizeof(char));
printf("Input filename: ");
gets(pathname);
}
printf("File: %s\n",pathname);
if( *pathname == '\0' ) {
printf("You did not give a file name!\n");
exit(1);
}
fp1 = fopen(pathname, "r");
if (fp1 == NULL) {
printf("cannot open %s\n", pathname);
exit(1);
}
printf(" %s %s %s\n\n",hexnum,hexdata,chardata);
for (i=0; ( (ch=fgetc(fp1)) != EOF) ; i++) {
byte2hex(ch,&hexdata[3*(i%16)+1]);
chardata[i%16+1] = pablechar(ch);
if ( (i%16)==15 )
printf(" %s %s %s\n",int2hex((i/16)*16,hexnum),hexdata,chardata);
}
if( ((i-1)%16)!=15 ) {
for(j=(i%16);j<16;j++) {
chardata[ j+1] = ' ';
hexdata[3*j+1] = ' ';
hexdata[3*j+2] = ' ';
}
printf(" %s %s %s\n",int2hex((i/16)*16,hexnum),hexdata,chardata);
}
fclose(fp1);
exit(0);
}
static void
put_hex(char *hex, unsigned char *bp, int nbytes)
{
int nhex = nbytes * 2;
byte2hex(hex, bp, nbytes);
hex[nhex] = '\n';
_write(1, hex, nhex + 1);
_exit(0);
}
char *int2hex(int n, char *string)
{
int i,temp;
char *ch;
temp = n;
ch = string + 2*sizeof(int);
*ch = '\0';
ch = ch-2;
for (i=0; i<sizeof(int); i++, ch=ch-2) {
byte2hex(temp,ch);
temp = temp/256;
}
return(string);
}
char ir_tmr_isr(void)
{
char ok;
// capture received frame in separate variables (maybe new IR bits would flow in)
final_ircode = ircode;
final_nbits = nbits;
final_protocol = protocol;
ok = final_protocol != IR_error && final_protocol != IR_unknown && nbits_ok;
if (ok)
{
byte2hex( usb_tmr_msg+3, (byte)(ircode>>8));
byte2hex( usb_tmr_msg+5, (byte)(ircode&0x00ff));
} else
{
static void dump(char *addr)
{
int i,j;
for(j=0;j<2;j++) {
long2hex((unsigned long)addr,s);
display_puts(s);
for(i=0;i<16;i++,addr++) {
byte2hex(*addr,s);
display_puts(" ");
display_puts(s);
}
display_puts("\n");
syscall_wait(50);
}
}
int start(int argc, char *argv[])
{
struct kmem_queue *plist;
int i,num;
char strbuf[16];
plist = malloc(sizeof(struct kmem_queue)*PLIST_SIZE);
if(plist==0) {
display_puts("error=malloc\n");
return 1;
}
num = syscall_que_list(0,PLIST_SIZE,plist);
display_puts("ID IN OUT NAME ST WAIT\n");
for(i=0;i<num;i++) {
word2hex(plist[i].id,strbuf);
display_puts(strbuf);
display_putc(' ');
word2hex(plist[i].in,strbuf);
display_puts(strbuf);
display_putc(' ');
word2hex(plist[i].out,strbuf);
display_puts(strbuf);
display_putc(' ');
word2hex(plist[i].name,strbuf);
display_puts(strbuf);
display_putc(' ');
byte2hex(plist[i].status,strbuf);
display_puts(strbuf);
display_putc(' ');
word2hex(plist[i].numwait,strbuf);
display_puts(strbuf);
display_putc('\n');
}
mfree(plist);
return 0;
}
static void *pci_scan_bios(void)
{
unsigned char *bios_addr;
for(bios_addr = (void*)CFG_MEM_BIOSSTART;
(unsigned long)bios_addr < CFG_MEM_BIOSMAX-sizeof(struct pci_bios) ;
bios_addr++ )
{
if(memcmp(bios_addr,"_32_",4)!=0)
continue;
struct pci_bios *info=(void*)bios_addr;
if(info->revision!=0)
continue;
if(info->length!=(unsigned char)1)
continue;
unsigned char i,checksum=0;
for(i=0;i<sizeof(struct pci_bios);i++) {
checksum += bios_addr[i];
}
if(checksum!=info->checksum)
continue;
display_puts("entry=");
long2hex(info->entry,s);
display_puts(s);
display_puts(",rev=");
int2dec(info->revision,s);
display_puts(s);
display_puts(",len=");
int2dec(info->length,s);
display_puts(s);
display_puts(",chk=");
byte2hex(info->checksum,s);
display_puts(s);
display_puts("\n");
return (void*)info->entry;
//display_puts(".");
//syscall_wait(100);
}
display_puts("PCI BIOS is not found\n");
dump((void*)CFG_MEM_BIOSSTART);
return 0;
}
static void test_helper_hex_single(const char* cs) {
CU_ASSERT_EQUAL(strlen(cs), 2);
char c1 = *cs;
char c2 = *(cs+1);
char val = hex2byte(c1, c2);
char cookie = 42;
char[3] buf;
*(buf+2) = cookie;
byte2hex(val, bufs);
CU_ASSERT_EQUAL(toupper(*buf), toupper(c1));
CU_ASSERT_EQUAL(toupper(*(buf+1)), toupper(c2));
char val2 = hex2byte(*buf, *(buf+1));
CU_ASSERT_EQUAL(val, val2);
CU_ASSERT_EQUAL(*(buf+2), cookie);
}
// 服务器端组装发给客户端的协商包
char* pkg_talk_rtn(const packet_parser_t *pkg)
{
char *r;
unsigned char *encrypted_key;// 使用公钥加密过的临时密钥
char *output;
iks *x, *tmp;
int dest_len;
x = iks_new ("connection");
if(NULL == x) return NULL;
iks_insert_attrib(x, "xmlns", TALK_XMLNS);
iks_insert_attrib(x, "type", "result");
tmp = iks_insert(x, "encryption");
iks_insert_attrib(tmp, "type", pkg->curr_ert.transfer_ert_type);
// 使用公钥对临时密钥进行加密
if (pkg->asym_encrypt_hook == NULL)
{
encrypted_key = rsa_encrypt((unsigned char *)get_transfer_crt_key(pkg), strlen(get_transfer_crt_key(pkg)), &dest_len, (char *)(pkg->curr_ert.ert_keys[0]), CRYPT_TYPE_ENCRYPT);
}
else
{
encrypted_key = pkg->asym_encrypt_hook((unsigned char *)get_transfer_crt_key(pkg), strlen(get_transfer_crt_key(pkg)), &dest_len, (char *)(pkg->curr_ert.ert_keys[0]), CRYPT_TYPE_ENCRYPT);
}
output = (char *)calloc(dest_len*2+1, 1);
byte2hex(encrypted_key, dest_len, output);
iks_insert_cdata(tmp, output, 0);
free(output);
free(encrypted_key);
iks_insert_cdata(iks_insert(x, "compression"), pkg->cps_type, 0);
tmp = iks_insert(x, "heartbeat");
// TODO：在初始化服务器端包解析器的时候应该设置心跳参数
iks_insert_attrib(tmp, "sponsor", "server");
iks_insert_attrib(tmp, "seconds", "60");
r = iks_string(NULL, x);
iks_delete(x);
return r;
}
void scamper_icmp_resp_print(const scamper_icmp_resp_t *ir)
{
char *t = NULL, tbuf[64];
char *c = NULL, cbuf[64];
char addr[64];
char ip[256];
char icmp[256];
char inner_ip[256];
char inner_transport[256];
char ext[256];
int i, j;
size_t off;
assert(ir->ir_af == AF_INET || ir->ir_af == AF_INET6);
if(ir->ir_af == AF_INET)
{
addr_tostr(AF_INET, &ir->ir_ip_src.v4, addr, sizeof(addr));
off = 0;
string_concat(ip, sizeof(ip), &off,
"from %s size %d ttl %d tos 0x%02x ipid 0x%04x",
addr, ir->ir_ip_size, ir->ir_ip_ttl, ir->ir_ip_tos,
ir->ir_ip_id);
if(ir->ir_ipopt_rrc > 0)
string_concat(ip, sizeof(ip), &off, " rr %d", ir->ir_ipopt_rrc);
switch(ir->ir_icmp_type)
{
case ICMP_UNREACH:
t = "unreach";
switch(ir->ir_icmp_code)
{
case ICMP_UNREACH_NET: c = "net"; break;
case ICMP_UNREACH_HOST: c = "host"; break;
case ICMP_UNREACH_PROTOCOL: c = "protocol"; break;
case ICMP_UNREACH_PORT: c = "port"; break;
case ICMP_UNREACH_SRCFAIL: c = "src-rt failed"; break;
case ICMP_UNREACH_NET_UNKNOWN: c = "net unknown"; break;
case ICMP_UNREACH_HOST_UNKNOWN: c = "host unknown"; break;
case ICMP_UNREACH_ISOLATED: c = "isolated"; break;
case ICMP_UNREACH_NET_PROHIB: c = "net prohib"; break;
case ICMP_UNREACH_HOST_PROHIB: c = "host prohib"; break;
case ICMP_UNREACH_TOSNET: c = "tos net"; break;
case ICMP_UNREACH_TOSHOST: c = "tos host"; break;
case ICMP_UNREACH_FILTER_PROHIB: c = "admin prohib"; break;
case ICMP_UNREACH_NEEDFRAG:
/*
* use the type buf to be consistent with the ICMP6
* fragmentation required message
*/
snprintf(tbuf, sizeof(tbuf), "need frag %d", ir->ir_icmp_nhmtu);
t = tbuf;
break;
default:
snprintf(cbuf, sizeof(cbuf), "code %d", ir->ir_icmp_code);
c = cbuf;
break;
}
break;
case ICMP_TIMXCEED:
t = "time exceeded";
switch(ir->ir_icmp_code)
{
case ICMP_TIMXCEED_INTRANS: c = "in trans"; break;
case ICMP_TIMXCEED_REASS: c = "in reass"; break;
default:
snprintf(cbuf, sizeof(cbuf), "code %d", ir->ir_icmp_code);
c = cbuf;
break;
}
break;
case ICMP_ECHOREPLY:
t = "echo reply";
snprintf(cbuf, sizeof(cbuf), "id %d seq %d",
ir->ir_icmp_id, ir->ir_icmp_seq);
c = cbuf;
break;
case ICMP_TSTAMPREPLY:
t = "ts reply";
snprintf(cbuf, sizeof(cbuf), "id %d seq %d",
ir->ir_icmp_id, ir->ir_icmp_seq);
c = cbuf;
break;
}
}
else /* if(ir->ir_af == AF_INET6) */
{
addr_tostr(AF_INET6, &ir->ir_ip_src.v6, addr, sizeof(addr));
snprintf(ip, sizeof(ip), "from %s size %d hlim %d", addr,
ir->ir_ip_size, ir->ir_ip_hlim);
switch(ir->ir_icmp_type)
{
case ICMP6_DST_UNREACH:
t = "unreach";
switch(ir->ir_icmp_code)
{
case ICMP6_DST_UNREACH_NOROUTE: c = "no route"; break;
case ICMP6_DST_UNREACH_ADMIN: c = "admin prohib"; break;
case ICMP6_DST_UNREACH_BEYONDSCOPE: c = "beyond scope"; break;
case ICMP6_DST_UNREACH_ADDR: c = "addr"; break;
case ICMP6_DST_UNREACH_NOPORT: c = "port"; break;
default:
snprintf(cbuf, sizeof(cbuf), "code %d", ir->ir_icmp_code);
c = cbuf;
break;
}
break;
case ICMP6_TIME_EXCEEDED:
t = "time exceeded";
switch(ir->ir_icmp_code)
{
case ICMP6_TIME_EXCEED_TRANSIT: c = "in trans"; break;
case ICMP6_TIME_EXCEED_REASSEMBLY: c = "in reass"; break;
default:
snprintf(cbuf, sizeof(cbuf), "code %d", ir->ir_icmp_code);
c = cbuf;
break;
}
break;
case ICMP6_PACKET_TOO_BIG:
snprintf(tbuf, sizeof(tbuf), "need frag %d", ir->ir_icmp_nhmtu);
t = tbuf;
break;
case ICMP6_ECHO_REPLY:
t = "echo reply";
snprintf(cbuf, sizeof(cbuf), "id %d seq %d",
ir->ir_icmp_id, ir->ir_icmp_seq);
c = cbuf;
break;
}
}
if(t == NULL)
{
snprintf(icmp, sizeof(icmp), "icmp %d code %d",
ir->ir_icmp_type, ir->ir_icmp_code);
}
else if(c == NULL)
{
snprintf(icmp, sizeof(icmp), "icmp %s", t);
}
else
{
snprintf(icmp, sizeof(icmp), "icmp %s %s", t, c);
}
if(ir->ir_flags & SCAMPER_ICMP_RESP_FLAG_INNER_IP)
{
if(ir->ir_af == AF_INET)
{
addr_tostr(AF_INET, &ir->ir_inner_ip_dst.v4, addr, sizeof(addr));
off = 0;
string_concat(inner_ip, sizeof(inner_ip), &off,
" to %s size %d ttl %d tos 0x%02x ipid 0x%04x",
addr, ir->ir_inner_ip_size, ir->ir_inner_ip_ttl,
ir->ir_inner_ip_tos, ir->ir_inner_ip_id);
if(ir->ir_inner_ipopt_rrc > 0)
string_concat(inner_ip, sizeof(inner_ip), &off, " rr %d",
ir->ir_inner_ipopt_rrc);
}
else /* if(ir->ir_af == AF_INET6) */
{
addr_tostr(AF_INET6, &ir->ir_inner_ip_dst.v6, addr, sizeof(addr));
snprintf(inner_ip, sizeof(inner_ip),
" to %s size %d hlim %d flow 0x%05x", addr,
ir->ir_inner_ip_size, ir->ir_inner_ip_hlim,
ir->ir_inner_ip_flow);
}
switch(ir->ir_inner_ip_proto)
{
case IPPROTO_UDP:
snprintf(inner_transport, sizeof(inner_transport),
" proto UDP sport %d dport %d sum 0x%04x",
ir->ir_inner_udp_sport, ir->ir_inner_udp_dport,
ntohs(ir->ir_inner_udp_sum));
break;
case IPPROTO_ICMP:
case IPPROTO_ICMPV6:
snprintf(inner_transport, sizeof(inner_transport),
" proto ICMP type %d code %d id %04x seq %d sum %04x",
ir->ir_inner_icmp_type, ir->ir_inner_icmp_code,
ir->ir_inner_icmp_id, ir->ir_inner_icmp_seq,
ntohs(ir->ir_inner_icmp_sum));
break;
case IPPROTO_TCP:
snprintf(inner_transport, sizeof(inner_transport),
" proto TCP sport %d dport %d seq %08x",
ir->ir_inner_tcp_sport, ir->ir_inner_tcp_dport,
ir->ir_inner_tcp_seq);
break;
default:
inner_transport[0] = '\0';
break;
}
}
else
{
inner_ip[0] = '\0';
inner_transport[0] = '\0';
}
if(ir->ir_ext != NULL)
{
snprintf(ext, sizeof(ext), " icmp-ext");
j = 9;
for(i=0; i<ir->ir_extlen; i++)
{
if(i % 4 == 0)
{
if(sizeof(ext)-j < 4)
break;
ext[j++] = ' ';
}
else if(sizeof(ext)-j < 3)
break;
byte2hex(ir->ir_ext[i], ext + j);
j += 2;
}
ext[j] = '\0';
}
else
{
ext[0] = '\0';
}
scamper_debug(NULL, "%s %s%s%s%s", ip, icmp, inner_ip, inner_transport, ext);
return;
}
int
main(int argc, char **argv)
{
unsigned char bufA[PIPE_MAX], bufB[PIPE_MAX], *bp, *bp1, *bp2;
int tail_nr;
int nbuf = 0;
char hex[65];
#if PIPE_MAX < 32
"this compilation error means that PIPE_MAX < 32 bytes"
#endif
if (argc != 1)
die(EXIT_BAD_ARGC, "wrong number of command line arguments");
(void)argv;
// read exactly PIPE_MAX bytes or read the tail of the blob,
// alternating between bufA and bufB.
bp = bufA;
while (fill(bp, &tail_nr)) {
nbuf++;
if (bp == bufA)
bp = bufB;
else
bp = bufA;
}
bp = (bp == bufA ? bufB : bufA);
// final read() of blob got at least 32 bytes
if (tail_nr >= 32)
put_hex(hex, bp + tail_nr - 32, 32);
// zero length blob
if (nbuf == 0)
_exit(0);
// total blob size < 32 bytes
if (nbuf == 1)
put_hex(hex, bp, tail_nr);
// we now know that the suffix will be exactly 32 bytes.
// is the suffix entirely in the previous block
if (tail_nr == PIPE_MAX)
put_hex(hex, bp + PIPE_MAX - 32, 32);
// tail block was read less than PIPE_MAX bytes, so 32 byte suffix
// spans final two chunks, where the length of tail chunk is 0 <&&< 32
// bytes and that the length of previous chunk is exactly PIPE_MAX
// bytes.
if (bp == bufA) {
bp1 = bufB;
bp2 = bufA;
} else {
bp1 = bufA;
bp2 = bufB;
}
byte2hex(hex, bp1 + (PIPE_MAX - (32 - tail_nr)), 32 - tail_nr);
byte2hex(hex + (64 - tail_nr * 2), bp2, tail_nr);
hex[64] = '\n';
_write(1, hex, 65);
_exit(0);
}
void main(void) {
uint16_t i;
char usb_char, err;
const char init_msg[] = {'I', 'N', 'I', 'T'};
//extern FILE *stdout = _H_USER; // redirect stdout to USB
init();
storage_init();
display_cnt = 0;
volume_tick = 0;
chan_tick = 0;
usb_tick = 0;
ir_tick = 0;
ir_speedup = 20;
dac_lock_tick = 0;
display_set_alt(0x00, 0x00, 0x00);
display_set(0x00, 0x00, 1);
ir_receiver_init();
err = relay_boards_init(); // as side-effect: determine board Type and Id
amp_state_init();
set_relays(0x00, 0x00, 0x00, 0x00);
display_oled_init();
if (has_oled_display) {
display_oled_chars( 0, 0, 5, "hello");
display_set_alt(DIGIT_D, 0x00, 3);
}
else if (err)
display_set_alt(DIGIT_E, 0x01, 3);
// Globally enable interrupts
#ifdef UseIPEN
INTCONbits.GIEH = 1;
INTCONbits.GIEL = 1;
#else
INTCONbits.PEIE = 1;
INTCONbits.GIE = 1;
#endif
// (re-)launch USB activity
prev_usb_bus_sense = 0;
usb_write(init_msg, (uint8_t) 4);
// The above 'set_relays' enabled the power relay for the analog supply.
#ifdef __DEBUG
power_tick = 0;
#else
power_tick = 120;
#endif
// Set a timer to later undo the mute and activate last volume setting.
// wait some time for stabilization before enabling all other interrupts
while (power_tick > 0)
; // gets decreased on timer interrupts, 183Hz
// power==0 now, from amp_state_init().
// incr power now quickly to 1, and later to 2.
power_incr = 1;
INTCON3bits.INT1IF = 0;
INTCON3bits.INT1IE = 1;
INTCON3bits.INT2IF = 0;
INTCON3bits.INT2IE = 1;
INTCON3bits.INT3IF = 0;
INTCON3bits.INT3IE = 1;
// Check if a DAC is present in this Relaixed, if so initialize.
// This check was delayed to allow DAC power-up, otherwise its i2c interface stays in reset
dac_init();
while (1) {
if (volume_incr)
volume_update();
if (balance_incr > 1 || balance_incr < -1)
// suppress a single tick, might have been by accident
balance_update();
if (channel_incr)
channel_update();
if (power_incr) {
if (flash_tick != 0 && power_incr < 0) {
// quickly save recent volume/balance update
flash_tick = 0;
flash_volume_channel();
} else if (power_incr > 0 && power_state() == 0) {
// if we move power_state from 0 to 1, we surely want to go later to 2
// For RelaixedPassive: wait somewhat longer for its soft-switch main power
power_tick = (isRelaixedXLR) ? 500 : 700;
}
if (power_incr > 0)
dac_init(); // check (again) for presence of DAC: it needs time to get out of reset
power_update();
}
if (ir_received_ok) {
ir_received_ok = 0;
ir_handle_code();
if (volume_incr) {
vol_usb_msg[0] = 'V';
// when 'volume' keeps pressed, the volume-tick-speed goes up
if (ir_speedup <= 49)
ir_speedup += 4;
} else {
vol_usb_msg[0] = 'v';
ir_speedup = 20;
}
byte2hex(vol_usb_msg + 1, ir_tick);
byte2hex(vol_usb_msg + 3, ir_speedup);
if (power_incr)
ir_tick = 100; // increase the default 20 to 100 on power on/off
else
flash_tick = 400;
usb_write(vol_usb_msg, 5);
}
if (flash_tick == 1) {
flash_tick = 0;
flash_volume_channel();
}
if (dac_status() >= DAC_NOLOCK && dac_lock_tick == 0) {
dac_check_lock();
dac_lock_tick = 45; // check lock 4x per secnd
}
/* some I/O to check repeatedly, for absence of interrupt-on-change */
check_usb_power(err);
}
}