static bool hfa_get_header(struct cgpu_info *hashfast, struct hf_header *h, uint8_t *computed_crc)
{
int amount, ret, orig_len, len, ofs = 0, reads = 0;
char buf[512];
char *header;
/* Read for up to 200ms till we find the first occurrence of HF_PREAMBLE
* though it should be the first byte unless we get woefully out of
* sync. */
orig_len = len = sizeof(*h);
do {
if (++reads > 20)
return false;
ret = usb_read_timeout(hashfast, buf + ofs, len, &amount, 10, C_HF_GETHEADER);
if (unlikely(ret && ret != LIBUSB_ERROR_TIMEOUT))
return false;
ofs += amount;
header = memchr(buf, HF_PREAMBLE, ofs);
if (header)
len -= ofs - (header - buf);
} while (len);
memcpy(h, header, orig_len);
*computed_crc = hfa_crc8((uint8_t *)h);
return true;
}
static void gc3355_init(struct cgpu_info *gridseed, GRIDSEED_INFO *info)
{
unsigned char buf[512];
int amount;
applog(LOG_NOTICE, "System reseting");
gc3355_send_cmds(gridseed, str_reset);
cgsleep_ms(200);
usb_buffer_clear(gridseed);
usb_read_timeout(gridseed, buf, sizeof(buf), &amount, 10, C_GETRESULTS);
gc3355_send_cmds(gridseed, str_init);
gc3355_send_cmds(gridseed, str_ltc_reset);
gc3355_set_core_freq(gridseed);
if (info->voltage)
gc3355_increase_voltage(gridseed);
}
static void gc3355_init(struct cgpu_info *gridseed, GRIDSEED_INFO *info, bool set_nonce)
{
unsigned char buf[512];
int amount;
applog(LOG_NOTICE, "System reseting");
gc3355_send_cmds(gridseed, str_reset);
cgsleep_ms(200);
usb_buffer_clear(gridseed);
usb_read_timeout(gridseed, buf, sizeof(buf), &amount, 10, C_GETRESULTS);
gc3355_send_cmds(gridseed, str_init);
gc3355_send_cmds(gridseed, str_ltc_reset);
gc3355_set_core_freq(gridseed);
if (set_nonce)
gc3355_set_init_nonce(gridseed);
//gc3355_send_cmds(gridseed, str_baud);
//gc3355_send_cmds(gridseed, str_enable_btc_cores);
gc3355_enable_btc_cores(gridseed, info);
if (info->usefifo == 0)
gc3355_send_cmds(gridseed, str_nofifo);
gridseed_request_ltc_task(gridseed, info);
return;
}
