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driver-gridseed.c
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driver-gridseed.c
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/*
* Copyright 2013 Faster <develop@gridseed.com>
* Copyright 2012-2013 Andrew Smith
* Copyright 2012 Luke Dashjr
* Copyright 2012 Con Kolivas <kernel@kolivas.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
#include "config.h"
#include <limits.h>
#include <pthread.h>
#include <stdint.h>
#include <stdio.h>
#include <strings.h>
#include <sys/time.h>
#include <unistd.h>
#include <math.h>
#ifndef WIN32
#include <sys/select.h>
#include <termios.h>
#include <sys/stat.h>
#include <fcntl.h>
#else
#include "compat.h"
#include <windows.h>
#include <winsock2.h>
#include <io.h>
#endif /* WIN32 */
#include "miner.h"
#include "usbutils.h"
#include "fpgautils.h"
#include "elist.h"
#include "util.h"
#include "driver-gridseed.h"
#define using_libusb(info) ((info)->using_libusb > 0)
#define using_serial(info) ((info)->using_libusb == 0)
static const char *gridseed_version = "v3.8.5.20140210.02";
static const char *str_reset[] = {
"55AAC000808080800000000001000000", // Chip reset
"55AAC000E0E0E0E00000000001000000", // FW reset
NULL
};
static const char *str_init[] = {
"55AAC000C0C0C0C00500000001000000",
"55AAEF020000000000000000000000000000000000000000",
"55AAEF3020000000",
NULL
};
static const char *str_ltc_reset[] = {
"55AA1F2817000000",
"55AA1F2814000000",
"55AA1F2817000000",
NULL
};
static const char *str_nofifo[] = {
"55AAC000D0D0D0D00000000001000000",
NULL
};
#ifdef WIN32
static void __maybe_unused set_text_color(WORD color)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), color);
}
#endif
#ifdef WIN32
static char *win32strerror(DWORD err)
{
static char errstr[256];
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_MAX_WIDTH_MASK,
NULL, err, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&errstr, sizeof(errstr), NULL);
return errstr;
}
#endif
#ifdef WIN32
#define sockclose(sock) closesocket(sock)
#define sockerror(err) ((err) == SOCKET_ERROR)
#define sockerrorstr() win32strerror(WSAGetLastError())
#else
#define sockclose(sock) close(sock)
#define sockerror(err) ((err) < 0)
#define sockerrorstr() strerror(errno)
#endif
// Unset upon first hotplug check
static bool initial_startup_phase = true;
/*---------------------------------------------------------------------------------------*/
static int gridseed_send_ping_packet(GRIDSEED_INFO *, struct sockaddr_in);
static void *gridseed_recv_packet(void *);
static void gc3355_send_cmds(struct cgpu_info *, const char **);
static bool gridseed_send_work_usb(struct cgpu_info *, unsigned char *, unsigned char *,
unsigned char *, int, enum gsd_mode);
static void __gridseed_test_ltc_nonce(struct cgpu_info *, GRIDSEED_INFO *,
struct thr_info *, uint32_t, unsigned int);
static int check_udp_port_in_use(short port)
{
int sock;
struct sockaddr_in local;
sock = socket(AF_INET, SOCK_DGRAM, 0);
#ifndef WIN32
if (sock < 0)
return -1;
#else
if ((unsigned int)sock == INVALID_SOCKET)
return -1;
#endif
local.sin_family = AF_INET;
local.sin_port = htons(port);
local.sin_addr.s_addr = inet_addr("127.0.0.1");
if (sockerror(bind(sock, (struct sockaddr*)&local, sizeof(local)))) {
sockclose(sock);
return -1;
}
return sock;
}
static void gridseed_create_proxy(struct cgpu_info *gridseed, GRIDSEED_INFO *info)
{
int sock = info->sockltc;
short port = info->ltc_port;
if (sock != -1)
sockclose(sock);
info->sockltc = -1;
while (true) {
sock = check_udp_port_in_use(port);
if (sock > -1)
break;
port++;
}
info->sockltc = sock;
info->ltc_port = port;
applog(LOG_NOTICE, "Create scrypt proxy on %d/UDP for %s%d", info->ltc_port, gridseed->drv->name, gridseed->device_id);
}
static bool gridseed_find_proxy(GRIDSEED_INFO *info)
{
struct sockaddr_in remote;
struct timeval tv_timeout;
GRIDSEED_PACKET packet;
fd_set rdfs;
int addrlen, n, sock = info->sockltc;
short port = info->ltc_port + 1000;
if (sock != -1)
sockclose(sock);
info->sockltc = -1;
while (true) {
sock = check_udp_port_in_use(port);
if (sock > -1)
break;
port++;
}
info->ltc_port = port - 1000;
info->sockltc = sock;
remote.sin_family = AF_INET;
remote.sin_port = htons(info->ltc_port);
remote.sin_addr.s_addr = inet_addr("127.0.0.1");
applog(LOG_INFO, "Checking for scrypt proxy on %d/UDP", info->ltc_port);
if (gridseed_send_ping_packet(info, remote) != 0) {
sockclose(sock);
return false;
}
tv_timeout.tv_sec = 0;
tv_timeout.tv_usec = 500000;
FD_ZERO(&rdfs);
FD_SET(sock, &rdfs);
if (select(sock+1, &rdfs, NULL, NULL, &tv_timeout) != 1) {
sockclose(sock);
return false;
}
addrlen = sizeof(remote);
n = recvfrom(sock, (char*)&packet, sizeof(packet), 0, (struct sockaddr *)&remote, (socklen_t *)&addrlen);
if (sockerror(n) || n != sizeof(packet)) {
sockclose(sock);
return false;
}
if (gridseed_send_ping_packet(info, remote) != 0) {
sockclose(sock);
return false;
}
//if (cgsem_mswait(&info->psem, 500) != 0)
// return false;
applog(LOG_NOTICE, "Found scrypt proxy on %d/UDP", info->ltc_port);
return true;
}
static int gridseed_send_ping_packet(GRIDSEED_INFO *info, struct sockaddr_in to)
{
GRIDSEED_PACKET packet;
if (info->sockltc < 0)
return -1;
packet.type = PACKET_PING;
if (sendto(info->sockltc, (char*)&packet, sizeof(packet), 0, (struct sockaddr *)&to,
sizeof(to)) != sizeof(packet)) {
applog(LOG_WARNING, "Couldn't send ping packet: %s", sockerrorstr());
return -1;
}
return 0;
}
static int gridseed_send_info_packet(GRIDSEED_INFO *info, struct sockaddr_in to)
{
GRIDSEED_PACKET packet;
if (info->sockltc < 0)
return -1;
packet.type = PACKET_INFO;
packet.info.freq = info->freq;
packet.info.chips = info->chips;
packet.info.modules = info->modules;
strncpy(packet.info.id, info->id, sizeof(packet.info.id));
if (sendto(info->sockltc, (char*)&packet, sizeof(packet), 0, (struct sockaddr *)&to,
sizeof(to)) != sizeof(packet)) {
applog(LOG_WARNING, "Couldn't send info packet: %s", sockerrorstr());
return -1;
}
return 0;
}
static void gridseed_recv_info_packet(struct cgpu_info *gridseed, GRIDSEED_INFO *info,
GRIDSEED_PACKET packet, struct sockaddr_in from)
{
mutex_lock(&info->qlock);
info->freq = packet.info.freq;
info->chips = packet.info.chips;
info->modules = packet.info.modules;
strncpy(info->id, packet.info.id, sizeof(info->id));
gridseed->unique_id = info->id;
info->toaddr = from;
mutex_unlock(&info->qlock);
cgsem_post(&info->psem);
}
static bool gridseed_send_work_packet(GRIDSEED_INFO *info, struct work *work)
{
GRIDSEED_PACKET packet;
if (info->sockltc < 0)
return false;
packet.type = PACKET_WORK;
memcpy(packet.work.target, work->target, sizeof(packet.work.target));
memcpy(packet.work.midstate, work->midstate, sizeof(packet.work.midstate));
memcpy(packet.work.data, work->data, sizeof(packet.work.data));
packet.work.id = work->id;
if (sendto(info->sockltc, (char*)&packet, sizeof(packet), 0,
(struct sockaddr *)&(info->toaddr), sizeof(info->toaddr)) != sizeof(packet)) {
applog(LOG_WARNING, "Couldn't send work packet: %s", sockerrorstr());
return false;
}
return true;
}
static void gridseed_recv_work_packet(struct cgpu_info *gridseed, GRIDSEED_INFO *info,
GRIDSEED_PACKET packet, struct sockaddr_in from)
{
mutex_lock(&info->qlock);
info->toaddr = from;
gridseed_send_work_usb(gridseed, packet.work.target, packet.work.midstate,
packet.work.data, packet.work.id, MODE_SCRYPT_DUAL);
mutex_unlock(&info->qlock);
}
static int gridseed_send_nonce_packet(GRIDSEED_INFO *info, unsigned char *data)
{
GRIDSEED_PACKET packet;
uint32_t nonce;
int workid;
if (info->sockltc < 0)
return -1;
memcpy(&workid, data+8, 4);
memcpy(&nonce, data+4, 4);
packet.type = PACKET_NONCE;
packet.nonce.nonce = nonce;
packet.nonce.workid = workid;
if (sendto(info->sockltc, (char*)&packet, sizeof(packet), 0, (struct sockaddr *)&(info->toaddr),
sizeof(info->toaddr)) != sizeof(packet)) {
applog(LOG_WARNING, "Couldn't send nonce packet: %s", sockerrorstr());
return -1;
}
return 0;
}
static void gridseed_recv_nonce_packet(struct cgpu_info *gridseed, GRIDSEED_INFO *info,
GRIDSEED_PACKET packet)
{
__gridseed_test_ltc_nonce(gridseed, info, info->thr, packet.nonce.nonce, packet.nonce.workid);
}
static void *gridseed_recv_packet(void *userdata)
{
struct cgpu_info *gridseed = (struct cgpu_info *)userdata;
GRIDSEED_INFO *info = gridseed->device_data;
GRIDSEED_PACKET packet;
struct timeval ts_packet, ts_now, tv_timeout;
struct sockaddr_in fromaddr;
fd_set rdfs;
char threadname[24];
int addrlen, n, no_packets = 0, sock = info->sockltc;
snprintf(threadname, sizeof(threadname), "GridSeed_Packet/%d", gridseed->device_id);
RenameThread(threadname);
applog(LOG_INFO, "GridSeed: packet thread running, %s", threadname);
cgtime(&ts_packet); // initialize
while(likely(!gridseed->shutdown)) {
cgtime(&ts_now);
if (info->mode == MODE_SCRYPT_DUAL &&
tdiff(&ts_now, &ts_packet) > (120 + 60 * no_packets)) {
if (no_packets > 5) {
applog(LOG_ERR, "%s%d: Proxy not responding, shutting down",
gridseed->drv->name, gridseed->device_id);
gridseed->shutdown = true;
break;
} else {
applog(LOG_NOTICE, "%s%d: No data from proxy, sending ping",
gridseed->drv->name, gridseed->device_id);
gridseed_send_ping_packet(info, info->toaddr);
}
no_packets++;
} else if (info->mode == MODE_SHA256_DUAL &&
tdiff(&ts_now, &ts_packet) > 130) {
info->mode = MODE_SHA256;
mutex_lock(&info->qlock);
gc3355_send_cmds(gridseed, str_ltc_reset);
cgsleep_ms(50);
mutex_unlock(&info->qlock);
}
tv_timeout.tv_sec = 2;
tv_timeout.tv_usec = 0;
FD_ZERO(&rdfs);
FD_SET(sock, &rdfs);
n = select(sock+1, &rdfs, NULL, NULL, &tv_timeout);
if (n == 0)
continue;
if (n < 0) {
if (errno == EINTR)
continue;
applog(LOG_ERR, "Error calling select: %s", sockerrorstr());
gridseed->shutdown = true;
break;
}
addrlen = sizeof(fromaddr);
n = recvfrom(sock, (char*)&packet, sizeof(packet), 0, (struct sockaddr *)&fromaddr, (socklen_t *)&addrlen);
if (sockerror(n)) {
if (errno == EINTR)
continue;
applog(LOG_ERR, "Error calling recvfrom: %s", sockerrorstr());
gridseed->shutdown = true;
break;
}
if (n != sizeof(packet))
continue;
cgtime(&ts_packet);
switch (packet.type) {
case PACKET_PING:
if (!SHA256_MODE(info->mode))
break;
gridseed_send_info_packet(info, fromaddr);
applog(LOG_INFO, "Received ping packet");
break;
case PACKET_INFO:
if (!SCRYPT_MODE(info->mode))
break;
gridseed_recv_info_packet(gridseed, info, packet, fromaddr);
applog(LOG_INFO, "Received info packet");
break;
case PACKET_WORK:
if (!SHA256_MODE(info->mode))
break;
info->mode = MODE_SHA256_DUAL;
gridseed_recv_work_packet(gridseed, info, packet, fromaddr);
applog(LOG_INFO, "Received work packet");
break;
case PACKET_NONCE:
if (!SCRYPT_MODE(info->mode))
break;
gridseed_recv_nonce_packet(gridseed, info, packet);
applog(LOG_INFO, "Received nonce packet");
break;
default:
applog(LOG_ERR, "Received unknown packet");
break;
}
}
return NULL;
}
/*---------------------------------------------------------------------------------------*/
/************************************************************
* Utility Functions
************************************************************/
static void flush_uart(int fd)
{
#ifdef WIN32
const HANDLE fh = (HANDLE)_get_osfhandle(fd);
PurgeComm(fh, PURGE_RXCLEAR);
#else
tcflush(fd, TCIFLUSH);
#endif
}
static void _transfer(struct cgpu_info *gridseed, uint8_t request_type, uint8_t bRequest,
uint16_t wValue, uint16_t wIndex, uint32_t *data, int siz, enum usb_cmds cmd)
{
int err;
err = usb_transfer_data(gridseed, request_type, bRequest, wValue, wIndex, data, siz, cmd);
cgsleep_ms(GRIDSEED_COMMAND_DELAY);
applog(LOG_DEBUG, "%s: cgid %d %s got err %d",
gridseed->drv->name, gridseed->cgminer_id,
usb_cmdname(cmd), err);
}
/************************************************************
* I/O helper functions
************************************************************/
#define gridseed_serial_open_detect(devpath, baud, purge) serial_open_ex(devpath, baud, 2, 0, purge, true)
#define gridseed_serial_open(devpath, baud, purge) serial_open_ex(devpath, baud, 2, 0, purge, true)
#define gridseed_serial_close(fd) close(fd)
static bool gridseed_reopen(struct cgpu_info *gridseed)
{
GRIDSEED_INFO *info = gridseed->device_data;
int try, fd = -1;
if (!using_serial(info)) // sanity check
return false;
if (info->device_fd != -1) {
applog(LOG_DEBUG, "Closing %s%d on %s (fd=%d)",
gridseed->drv->name, gridseed->device_id, gridseed->device_path, info->device_fd);
gridseed_serial_close(info->device_fd);
info->device_fd = -1;
cgsleep_ms(2000);
}
applog(LOG_DEBUG, "Attempting to open %s%d on %s",
gridseed->drv->name, gridseed->device_id, gridseed->device_path);
for (try = 0; try < 3; ++try) {
fd = gridseed_serial_open(gridseed->device_path, info->baud, true);
if (likely(fd > -1))
break;
cgsleep_ms(3000);
}
if (unlikely(fd < 0)) {
applog(LOG_ERR, "Failed to open %s%d on %s (%d attempts)",
gridseed->drv->name, gridseed->device_id, gridseed->device_path, try);
return false;
}
info->device_fd = fd;
applog(LOG_DEBUG, "Successfully opened %s%d on %s (%d attempts, fd=%d)",
gridseed->drv->name, gridseed->device_id, gridseed->device_path, try, info->device_fd);
return true;
}
static int gc3355_write(struct cgpu_info *gridseed, const void *buf, size_t len)
{
GRIDSEED_INFO *info = gridseed->device_data;
int ret, err;
if (opt_debug) {
char *hexstr;
hexstr = bin2hex(buf, len);
applog(LOG_DEBUG, "> %s", hexstr);
free(hexstr);
}
#if 0
if (!opt_quiet && opt_debug) {
int i;
#ifndef WIN32
fprintf(stderr, "[1;33m >>> %d : [0m", size);
#else
set_text_color(FOREGROUND_RED|FOREGROUND_GREEN);
fprintf(stderr, " >>> %d : ", size);
set_text_color(FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
#endif
for(i=0; i<size; i++) {
fprintf(stderr, "%02x", data[i]);
if (i==3)
fprintf(stderr, " ");
}
fprintf(stderr, "\n");
}
#endif
if (using_libusb(info)) {
err = usb_write(gridseed, (char *)buf, len, &ret, C_SENDWORK);
if (err != LIBUSB_SUCCESS) {
applog(LOG_ERR, "%s%d: error on USB write: %s",
gridseed->drv->name, gridseed->device_id, libusb_strerror(err));
return -1;
} else if (ret < 0 || (size_t)ret != len) {
applog(LOG_ERR, "%s%d: usb_write length mismatch: %zu != %d",
gridseed->drv->name, gridseed->device_id, len, ret);
return -1;
}
} else {
#ifndef WIN32
ret = write(info->device_fd, buf, len);
#else
ret = win32write(info->device_fd, buf, len);
#endif
if (ret < 0) {
applog(LOG_ERR, "%s%d: error on serial write (fd=%d): %s",
gridseed->drv->name, gridseed->device_id, info->device_fd, strerror(errno));
info->serial_reopen = true;
return -1;
}
}
cgsleep_ms(GRIDSEED_COMMAND_DELAY);
return ret;
}
#define gc3355_get_data(gridseed, buf, len) gc3355_read(gridseed, buf, len, 1)
static int gc3355_read(struct cgpu_info *gridseed, void *buf, size_t len, int read_count)
{
GRIDSEED_INFO *info = gridseed->device_data;
ssize_t ret;
size_t total = 0;
int err, rc = 0;
while (total < len) {
if (using_libusb(info)) {
err = usb_read_once_timeout(gridseed, (char *)buf + total, len - total, (int*)&ret, 200, C_GETRESULTS);
if (err != LIBUSB_SUCCESS && err != LIBUSB_ERROR_TIMEOUT) {
applog(LOG_ERR, "%s%d: error on USB read: %s",
gridseed->drv->name, gridseed->device_id, libusb_strerror(err));
return -1;
}
} else {
#ifndef WIN32
ret = read(info->device_fd, buf + total, len - total);
#else
ret = win32read(info->device_fd, buf + total, len - total);
#endif
if (ret < 0) {
applog(LOG_ERR, "%s%d: error on serial read (fd=%d): %s",
gridseed->drv->name, gridseed->device_id, info->device_fd, strerror(errno));
info->serial_reopen = true;
return -1;
}
}
if (ret == 0 && ++rc >= read_count)
break;
total += (size_t)ret;
}
if (opt_debug) {
char *hexstr;
if (total > 0) {
hexstr = bin2hex(buf, total);
applog(LOG_DEBUG, "< %s", hexstr);
free(hexstr);
} else {
applog(LOG_DEBUG, "< (no data)");
}
}
#if 0
if (!opt_quiet && opt_debug) {
int i;
#ifndef WIN32
fprintf(stderr, "[1;31m <<< %d : [0m", offset);
#else
set_text_color(FOREGROUND_RED);
fprintf(stderr, " <<< %d : ", offset);
set_text_color(FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
#endif
for(i = 0; i < offset; i++) {
fprintf(stderr, "%02x", buf[i]);
if ((i+1) % 4 == 0)
fprintf(stderr, " ");
}
fprintf(stderr, "\n");
}
#endif
return total;
}
static void gc3355_send_cmds(struct cgpu_info *gridseed, const char *cmds[])
{
unsigned char ob[512];
int i;
for(i=0; cmds[i] != NULL; i++) {
hex2bin(ob, cmds[i], sizeof(ob));
gc3355_write(gridseed, ob, strlen(cmds[i])/2);
}
}
static void gc3355_send_cmds_bin(struct cgpu_info *gridseed, const char *cmds[], int size)
{
int i;
for(i=0; cmds[i] != NULL; i++) {
gc3355_write(gridseed, (unsigned char *)cmds[i], size);
}
}
static bool gc3355_read_register(struct cgpu_info *gridseed, uint32_t reg_addr,
uint32_t *reg_value) {
GRIDSEED_INFO *info = (GRIDSEED_INFO*)(gridseed->device_data);
unsigned char cmd[16] = "\x55\xaa\xc0\x01";
uint32_t reg_len = 4;
unsigned char buf[4];
if (info->fw_version != 0x01140113) {
applog(LOG_ERR, "Can't read registers; incompatible firmware %08X on %s%d",
info->fw_version, gridseed->drv->name, gridseed->device_id);
return false;
}
*(uint32_t *)(cmd + 4) = htole32(reg_addr);
*(uint32_t *)(cmd + 8) = htole32(reg_len);
*(uint32_t *)(cmd + 12) = htole32(reg_len);
if (gc3355_write(gridseed, cmd, sizeof(cmd)) != sizeof(cmd)) {
applog(LOG_DEBUG, "Failed to write data to %s%d", gridseed->drv->name, gridseed->device_id);
return false;
}
if (gc3355_get_data(gridseed, buf, 4) != 4) {
applog(LOG_DEBUG, "No response from %s%d", gridseed->drv->name, gridseed->device_id);
return false;
}
*reg_value = le32toh(*(uint32_t *)buf);
return true;
}
static bool gc3355_write_register(struct cgpu_info *gridseed, uint32_t reg_addr,
uint32_t reg_value) {
GRIDSEED_INFO *info = (GRIDSEED_INFO*)(gridseed->device_data);
unsigned char cmd[16] = "\x55\xaa\xc0\x02";
uint32_t reg_len = 4;
unsigned char buf[4];
if (info->fw_version != 0x01140113) {
applog(LOG_ERR, "Can't write registers; incompatible firmware %08X on %s%d",
info->fw_version, gridseed->drv->name, gridseed->device_id);
return false;
}
*(uint32_t *)(cmd + 4) = htole32(reg_addr);
*(uint32_t *)(cmd + 8) = htole32(reg_value);
*(uint32_t *)(cmd + 12) = htole32(reg_len);
if (gc3355_write(gridseed, cmd, sizeof(cmd)) != sizeof(cmd)) {
applog(LOG_DEBUG, "Failed to write data to %s%d", gridseed->drv->name, gridseed->device_id);
return false;
}
if (gc3355_get_data(gridseed, buf, 4) != 4) {
applog(LOG_DEBUG, "No response from %s%d", gridseed->drv->name, gridseed->device_id);
return false;
}
return true;
}
static void gc3355_switch_leds(struct cgpu_info *gridseed) {
uint32_t reg_value;
// Set GPIOB pins 0 and 1 as general purpose output, open-drain, 50 MHz max
if (!gc3355_read_register(gridseed, GRIDSEED_GPIOB_BASE + GRIDSEED_CRL_OFFSET, ®_value)) {
applog(LOG_DEBUG, "Failed to read GPIOA CRL register from %i", gridseed->device_id);
return;
}
reg_value = (reg_value & 0xffffff00) | 0x00000077;
if (!gc3355_write_register(gridseed, GRIDSEED_GPIOB_BASE + GRIDSEED_CRL_OFFSET, reg_value)) {
applog(LOG_DEBUG, "Failed to write GPIOA CRL register from %i", gridseed->device_id);
return;
}
applog(LOG_NOTICE, "%s%d: Turned off GC3355 LEDs",
gridseed->drv->name, gridseed->device_id);
}
static void gc3355_switch_voltage(struct cgpu_info *gridseed) {
uint32_t reg_value;
// Put GPIOA pin 5 into general function, 50 MHz output.
if (!gc3355_read_register(gridseed, GRIDSEED_GPIOA_BASE + GRIDSEED_CRL_OFFSET, ®_value)) {
applog(LOG_DEBUG, "Failed to read GPIOA CRL register from %s%d", gridseed->drv->name, gridseed->device_id);
return;
}
reg_value = (reg_value & 0xff0fffff) | 0x00300000;
if (!gc3355_write_register(gridseed, GRIDSEED_GPIOA_BASE + GRIDSEED_CRL_OFFSET, reg_value)) {
applog(LOG_DEBUG, "Failed to write GPIOA CRL register from %s%d", gridseed->drv->name, gridseed->device_id);
return;
}
// Set GPIOA pin 5 high.
if (!gc3355_read_register(gridseed, GRIDSEED_GPIOA_BASE + GRIDSEED_ODR_OFFSET, ®_value)) {
applog(LOG_DEBUG, "Failed to read GPIOA ODR register from %s%d", gridseed->drv->name, gridseed->device_id);
return;
}
reg_value |= 0x00000020;
if (!gc3355_write_register(gridseed, GRIDSEED_GPIOA_BASE + GRIDSEED_ODR_OFFSET, reg_value)) {
applog(LOG_DEBUG, "Failed to write GPIOA ODR register from %s%d", gridseed->drv->name, gridseed->device_id);
return;
}
applog(LOG_NOTICE, "%s%d: Switched GC3355 voltage to alternate voltage",
gridseed->drv->name, gridseed->device_id);
}
static void gc3355_set_init_nonce(struct cgpu_info *gridseed)
{
GRIDSEED_INFO *info;
int i;
char **cmds, *p;
uint32_t nonce, step;
info = (GRIDSEED_INFO*)(gridseed->device_data);
cmds = calloc(sizeof(char*)*(info->chips+1), 1);
if (unlikely(!cmds))
quit(1, "Failed to calloc init nonce commands data array");
step = 0xffffffff / info->chips;
for(i=0; i<info->chips; i++) {
p = calloc(8, 1);
if (unlikely(!p))
quit(1, "Failed to calloc init nonce commands data");
memcpy(p, "\x55\xaa\x00\x00", 4);
p[2] = i;
nonce = htole32(step*i);
memcpy(p+4, &nonce, sizeof(nonce));
cmds[i] = p;
}
cmds[i] = NULL;
gc3355_send_cmds_bin(gridseed, (const char **)cmds, 8);
for(i=0; i<info->chips; i++)
free(cmds[i]);
free(cmds);
}
static void gc3355_enable_btc_cores(struct cgpu_info *gridseed, GRIDSEED_INFO *info)
{
unsigned char cmd[24], c1, c2;
uint16_t mask;
int i;
mask = 0x00;
for(i=0; i<info->btcore; i++)
mask = mask << 1 | 0x01;
if (mask == 0)
return;
c1 = mask & 0x00ff;
c2 = mask >> 8;
memset(cmd, 0, sizeof(cmd));
memcpy(cmd, "\x55\xAA\xEF\x02", 4);
for(i=4; i<24; i++) {
cmd[i] = ((i%2)==0) ? c1 : c2;
gc3355_write(gridseed, cmd, sizeof(cmd));
}
}
static void gc3355_set_core_freq(struct cgpu_info *gridseed)
{
GRIDSEED_INFO *info = (GRIDSEED_INFO*)(gridseed->device_data);
gc3355_write(gridseed, info->cmd_freq, sizeof(info->cmd_freq));
if (SHA256_MODE(info->mode)) {
gc3355_write(gridseed, info->cmd_btc_baud, sizeof(info->cmd_btc_baud));
}
applog(LOG_NOTICE, "%s%d: Set GC3355 core frequency to %d MHz",
gridseed->drv->name, gridseed->device_id, info->freq);
}
static void gc3355_init(struct cgpu_info *gridseed, GRIDSEED_INFO *info)
{
char buf[512];
int amount;
applog(LOG_NOTICE, "%s%d: System reseting", gridseed->drv->name, gridseed->device_id);
gc3355_send_cmds(gridseed, str_reset);
cgsleep_ms(200);
if (using_libusb(info)) {
usb_buffer_clear(gridseed);
usb_read_timeout(gridseed, buf, sizeof(buf), &amount, 10, C_GETRESULTS);
} else {
flush_uart(info->device_fd);
}
gc3355_send_cmds(gridseed, str_init);
gc3355_send_cmds(gridseed, str_ltc_reset);
gc3355_set_core_freq(gridseed);
if (SHA256_MODE(info->mode)) {
gc3355_set_init_nonce(gridseed);
gc3355_enable_btc_cores(gridseed, info);
if (info->usefifo == 0)
gc3355_send_cmds(gridseed, str_nofifo);
}
if (info->voltage)
gc3355_switch_voltage(gridseed);
if (info->led)
gc3355_switch_leds(gridseed);
}
static void set_freq_cmd(GRIDSEED_INFO *info, int pll_r, int pll_f, int pll_od)
{
if (pll_r == 0 && pll_f == 0 && pll_od == 0) {
// Support frequency increments of 12.5 MHz
// Non-integer frequencies must be specified rounded up
// With these values the minimum we can set is 12.5 and the max 1600
pll_r = 1;
pll_f = 2 * info->freq / GRIDSEED_F_IN - 1;
pll_f = MAX(0, MIN(127, pll_f));
}
double f_ref = GRIDSEED_F_IN / (pll_r + 1.);
double f_vco = f_ref * (pll_f + 1.);
double f_out = f_vco / (1 << pll_od);
int pll_bs = (f_out >= 500.) ? 1 : 0;
int cfg_pm = 1, pll_clk_gate = 1;
uint32_t cmdf = (cfg_pm << 0) | (pll_clk_gate << 2) | (pll_r << 16) |
(pll_f << 21) | (pll_od << 28) | (pll_bs << 31);
info->freq = (int)ceil(f_out);
memcpy(info->cmd_freq, "\x55\xaa\xef\x00", 4);
//*(uint32_t *)(info->cmd_freq + 4) = htole32(cmdf);
cmdf = htole32(cmdf);
memcpy(info->cmd_freq + 4, &cmdf, 4);
uint32_t cmdb = 0x40000000 | ((uint32_t)round(f_out * 1000000. / info->baud) & 0xffff);
cmdb = htole32(cmdb);
memcpy(info->cmd_btc_baud, "\x55\xaa\x0f\xff", 4);
memcpy(info->cmd_btc_baud + 4, &cmdb, 4);
}
static bool get_options(GRIDSEED_INFO *info, const char *options)
{
char *ss, *p, *end, *comma, *eq;
int tmp, pll_r = 0, pll_f = 0, pll_od = 0;
if (options == NULL)
return false;
applog(LOG_NOTICE, "GridSeed options: '%s'", options);
ss = strdup(options);
p = ss;
end = p + strlen(p);
another:
comma = strchr(p, ',');
if (comma != NULL)
*comma = '\0';
eq = strchr(p, '=');
if (eq == NULL)
goto next;
*eq = '\0';
tmp = atoi(eq+1);
if (strcasecmp(p, "baud")==0) {
info->baud = (tmp != 0) ? tmp : info->baud;
}
else if (strcasecmp(p, "freq")==0) {
info->freq = tmp;
}
else if (strcasecmp(p, "pll_r")==0) {
pll_r = (tmp != 0) ? tmp : pll_r;
pll_r = MAX(0, MIN(31, pll_r));
}
else if (strcasecmp(p, "pll_f")==0) {
pll_f = (tmp != 0) ? tmp : pll_f;
pll_f = MAX(0, MIN(127, pll_f));
}
else if (strcasecmp(p, "pll_od")==0) {
pll_od = (tmp != 0) ? tmp : pll_od;
pll_od = MAX(0, MIN(4, pll_od));
}
else if (strcasecmp(p, "chips")==0) {
info->chips = (tmp != 0) ? tmp : info->chips;
info->chips = MAX(0, MIN(GRIDSEED_MAX_CHIPS, info->chips));
}
else if (strcasecmp(p, "modules")==0) {
info->modules = (tmp != 0) ? tmp : info->modules;
}
else if (strcasecmp(p, "usefifo")==0) {
info->usefifo = tmp;
}
else if (strcasecmp(p, "btc")==0) {
info->btcore = tmp;
}
else if (strcasecmp(p, "voltage")==0) {
info->voltage = (tmp != 0) ? tmp : info->voltage;
}
else if (strcasecmp(p, "led_off")==0) {
info->led = (tmp != 0) ? tmp : info->led;
}
else if (strcasecmp(p, "per_chip_stats")==0) {
info->per_chip_stats = (tmp != 0) ? tmp : info->per_chip_stats;
}
else if (strcasecmp(p, "start_port")==0) {
info->ltc_port = tmp;
}
next:
if (comma != NULL) {
p = comma + 1;
if (p < end)
goto another;
}
free(ss);
set_freq_cmd(info, pll_r, pll_f, pll_od);
return true;
}
static bool get_freq(GRIDSEED_INFO *info, const char *options, const char *id)
{
char *ss, *p, *end, *comma, *eq;
int tmp;
if (options == NULL)
return false;
applog(LOG_NOTICE, "GridSeed freq options: '%s'", options);
ss = strdup(options);
p = ss;
end = p + strlen(p);
another:
comma = strchr(p, ',');
if (comma != NULL)
*comma = '\0';
eq = strchr(p, '=');