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Icarus - minimise code delays and name timer variables

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This commit is contained in:
Kano 2012-05-02 20:53:10 +10:00 committed by Con Kolivas
parent 524e2fb8f2
commit 09fe8bcb12
1 changed files with 39 additions and 31 deletions
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34
driver-icarus.c
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@ -196,7 +196,7 @@ static int icarus_write(int fd, const void *buf, size_t bufLen)
static bool icarus_detect_one(const char *devpath)
{
struct timeval tv1, tv2;
struct timeval tv_start, tv_finish;
int fd;
// Block 171874 nonce = (0xa2870100) = 0x000187a2
@ -225,11 +225,11 @@ static bool icarus_detect_one(const char *devpath)
hex2bin(ob_bin, golden_ob, sizeof(ob_bin));
icarus_write(fd, ob_bin, sizeof(ob_bin));
gettimeofday(&tv1, NULL);
gettimeofday(&tv_start, NULL);
memset(nonce_bin, 0, sizeof(nonce_bin));
icarus_gets(nonce_bin, sizeof(nonce_bin), fd, -1, 1);
gettimeofday(&tv2, NULL);
gettimeofday(&tv_finish, NULL);
icarus_close(fd);
@ -315,7 +315,9 @@ static uint64_t icarus_scanhash(struct thr_info *thr, struct work *work,
char *ob_hex, *nonce_hex;
uint32_t nonce;
uint32_t hash_count;
struct timeval tv1, tv2, elapsed;
struct timeval tv_start, tv_finish, elapsed;
elapsed.tv_sec = elapsed.tv_usec = 0;
icarus = thr->cgpu;
fd = icarus->device_fd;
@ -329,30 +331,37 @@ static uint64_t icarus_scanhash(struct thr_info *thr, struct work *work,
tcflush(fd, TCOFLUSH);
#endif
ret = icarus_write(fd, ob_bin, sizeof(ob_bin));
gettimeofday(&tv1, NULL);
if (opt_debug)
gettimeofday(&tv_start, NULL);
if (ret)
return 0; /* This should never happen */
if (opt_debug) {
ob_hex = bin2hex(ob_bin, sizeof(ob_bin));
if (ob_hex) {
applog(LOG_DEBUG, "Icarus %d sent: %s",
icarus->device_id, ob_hex);
free(ob_hex);
}
}
/* Icarus will return 8 bytes nonces or nothing */
/* Icarus will return 4 bytes nonces or nothing */
memset(nonce_bin, 0, sizeof(nonce_bin));
ret = icarus_gets(nonce_bin, sizeof(nonce_bin), fd, thr_id,
ICARUS_READ_COUNT_DEFAULT);
gettimeofday(&tv2, NULL);
if (opt_debug)
gettimeofday(&tv_finish, NULL);
memcpy((char *)&nonce, nonce_bin, sizeof(nonce_bin));
// aborted before becoming idle, get new work
if (nonce == 0 && ret) {
timersub(&tv2, &tv1, &elapsed);
if (opt_debug) {
timersub(&tv_finish, &tv_start, &elapsed);
applog(LOG_DEBUG, "Icarus %d no nonce = 0x%08x hashes (%ld.%06lds)",
icarus->device_id, ESTIMATE_HASHES, elapsed.tv_sec, elapsed.tv_usec);
}
return ESTIMATE_HASHES;
}
@ -363,7 +372,8 @@ static uint64_t icarus_scanhash(struct thr_info *thr, struct work *work,
work->blk.nonce = 0xffffffff;
submit_nonce(thr, work, nonce);
timersub(&tv2, &tv1, &elapsed);
if (opt_debug) {
timersub(&tv_finish, &tv_start, &elapsed);
nonce_hex = bin2hex(nonce_bin, sizeof(nonce_bin));
if (nonce_hex) {
@ -371,17 +381,15 @@ static uint64_t icarus_scanhash(struct thr_info *thr, struct work *work,
icarus->device_id, elapsed.tv_sec, elapsed.tv_usec, nonce_hex);
free(nonce_hex);
}
}
hash_count = (nonce & 0x7fffffff);
if (hash_count == 0)
hash_count = 2;
else {
if (hash_count++ == 0x7fffffff)
hash_count = 0xffffffff;
else
hash_count <<= 1;
}
if (opt_debug)
applog(LOG_DEBUG, "Icarus %d nonce = 0x%08x = 0x%08x hashes (%ld.%06lds)",
icarus->device_id, nonce, hash_count, elapsed.tv_sec, elapsed.tv_usec);