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driver-hashfast.c
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driver-hashfast.c
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/*
* Copyright 2013-2014 Con Kolivas <kernel@kolivas.org>
* Copyright 2013 Hashfast Inc.
*
* 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 <stdbool.h>
#include <math.h>
#include "miner.h"
#include "usbutils.h"
#include "driver-hashfast.h"
int opt_hfa_ntime_roll = 1;
int opt_hfa_hash_clock = HFA_CLOCK_DEFAULT;
int opt_hfa_overheat = HFA_TEMP_OVERHEAT;
int opt_hfa_target = HFA_TEMP_TARGET;
bool opt_hfa_pll_bypass;
bool opt_hfa_dfu_boot;
int opt_hfa_fan_default = HFA_FAN_DEFAULT;
int opt_hfa_fan_max = HFA_FAN_MAX;
int opt_hfa_fan_min = HFA_FAN_MIN;
int opt_hfa_fail_drop = 10;
bool opt_hfa_noshed;
char *opt_hfa_name;
char *opt_hfa_options;
////////////////////////////////////////////////////////////////////////////////
// Support for the CRC's used in header (CRC-8) and packet body (CRC-32)
////////////////////////////////////////////////////////////////////////////////
#define GP8 0x107 /* x^8 + x^2 + x + 1 */
#define DI8 0x07
static bool hfa_crc8_set;
char *set_hfa_fan(char *arg)
{
int val1, val2, ret;
ret = sscanf(arg, "%d-%d", &val1, &val2);
if (ret < 1)
return "No values passed to hfa-fan";
if (ret == 1)
val2 = val1;
if (val1 < 0 || val1 > 100 || val2 < 0 || val2 > 100 || val2 < val1)
return "Invalid value passed to hfa-fan";
opt_hfa_fan_min = val1;
opt_hfa_fan_max = val2;
if (opt_hfa_fan_min > opt_hfa_fan_default)
opt_hfa_fan_default = opt_hfa_fan_min;
if (opt_hfa_fan_max < opt_hfa_fan_default)
opt_hfa_fan_default = opt_hfa_fan_max;
return NULL;
}
static unsigned char crc8_table[256]; /* CRC-8 table */
static void hfa_init_crc8(void)
{
int i,j;
unsigned char crc;
hfa_crc8_set = true;
for (i = 0; i < 256; i++) {
crc = i;
for (j = 0; j < 8; j++)
crc = (crc << 1) ^ ((crc & 0x80) ? DI8 : 0);
crc8_table[i] = crc & 0xFF;
}
}
static unsigned char hfa_crc8(unsigned char *h)
{
int i;
unsigned char crc;
h++; // Preamble not included
for (i = 1, crc = 0xff; i < 7; i++)
crc = crc8_table[crc ^ *h++];
return crc;
}
struct hfa_cmd {
uint8_t cmd;
char *cmd_name;
enum usb_cmds usb_cmd;
};
/* Entries in this array need to align with the actual op values specified
* in hf_protocol.h */
#define C_NULL C_MAX
static const struct hfa_cmd hfa_cmds[] = {
{OP_NULL, "OP_NULL", C_NULL}, // 0
{OP_ROOT, "OP_ROOT", C_NULL},
{OP_RESET, "OP_RESET", C_HF_RESET},
{OP_PLL_CONFIG, "OP_PLL_CONFIG", C_HF_PLL_CONFIG},
{OP_ADDRESS, "OP_ADDRESS", C_HF_ADDRESS},
{OP_READDRESS, "OP_READDRESS", C_NULL},
{OP_HIGHEST, "OP_HIGHEST", C_NULL},
{OP_BAUD, "OP_BAUD", C_HF_BAUD},
{OP_UNROOT, "OP_UNROOT", C_NULL}, // 8
{OP_HASH, "OP_HASH", C_HF_HASH},
{OP_NONCE, "OP_NONCE", C_HF_NONCE},
{OP_ABORT, "OP_ABORT", C_HF_ABORT},
{OP_STATUS, "OP_STATUS", C_HF_STATUS},
{OP_GPIO, "OP_GPIO", C_NULL},
{OP_CONFIG, "OP_CONFIG", C_HF_CONFIG},
{OP_STATISTICS, "OP_STATISTICS", C_HF_STATISTICS},
{OP_GROUP, "OP_GROUP", C_NULL}, // 16
{OP_CLOCKGATE, "OP_CLOCKGATE", C_HF_CLOCKGATE},
{OP_USB_INIT, "OP_USB_INIT", C_HF_USB_INIT}, // 18
{OP_GET_TRACE, "OP_GET_TRACE", C_NULL},
{OP_LOOPBACK_USB, "OP_LOOPBACK_USB", C_NULL},
{OP_LOOPBACK_UART, "OP_LOOPBACK_UART", C_NULL},
{OP_DFU, "OP_DFU", C_HF_DFU},
{OP_USB_SHUTDOWN, "OP_USB_SHUTDOWN", C_NULL},
{OP_DIE_STATUS, "OP_DIE_STATUS", C_HF_DIE_STATUS}, // 24
{OP_GWQ_STATUS, "OP_GWQ_STATUS", C_HF_GWQ_STATUS},
{OP_WORK_RESTART, "OP_WORK_RESTART", C_HF_WORK_RESTART},
{OP_USB_STATS1, "OP_USB_STATS1", C_NULL},
{OP_USB_GWQSTATS, "OP_USB_GWQSTATS", C_HF_GWQSTATS},
{OP_USB_NOTICE, "OP_USB_NOTICE", C_HF_NOTICE},
{OP_PING, "OP_PING", C_HF_PING},
{OP_CORE_MAP, "OP_CORE_MAP", C_NULL},
{OP_VERSION, "OP_VERSION", C_NULL}, // 32
{OP_FAN, "OP_FAN", C_HF_FAN},
{OP_NAME, "OP_NAME", C_OP_NAME}
};
#define HF_USB_CMD_OFFSET (128 - 18)
#define HF_USB_CMD(X) (X - HF_USB_CMD_OFFSET)
/* Send an arbitrary frame, consisting of an 8 byte header and an optional
* packet body. */
static bool __hfa_send_frame(struct cgpu_info *hashfast, uint8_t opcode, int tx_length,
uint8_t *packet)
{
struct hashfast_info *info = hashfast->device_data;
int ret, amount;
bool retried = false;
if (unlikely(hashfast->usbinfo.nodev))
return false;
info->last_send = time(NULL);
applog(LOG_DEBUG, "%s %s: Sending %s frame", hashfast->drv->name, hashfast->unique_id, hfa_cmds[opcode].cmd_name);
retry:
ret = usb_write(hashfast, (char *)packet, tx_length, &amount,
hfa_cmds[opcode].usb_cmd);
if (unlikely(ret < 0 || amount != tx_length)) {
if (hashfast->usbinfo.nodev)
return false;
if (!retried) {
applog(LOG_ERR, "%s %s: hfa_send_frame: USB Send error, ret %d amount %d vs. tx_length %d, retrying",
hashfast->drv->name, hashfast->unique_id, ret, amount, tx_length);
retried = true;
goto retry;
}
applog(LOG_ERR, "%s %s: hfa_send_frame: USB Send error, ret %d amount %d vs. tx_length %d",
hashfast->drv->name, hashfast->unique_id, ret, amount, tx_length);
return false;
}
if (retried)
applog(LOG_WARNING, "%s %s: hfa_send_frame: recovered OK", hashfast->drv->name, hashfast->unique_id);
return true;
}
static bool hfa_send_generic_frame(struct cgpu_info *hashfast, uint8_t opcode, uint8_t chip_address,
uint8_t core_address, uint16_t hdata, uint8_t *data, int len)
{
uint8_t packet[256];
struct hf_header *p = (struct hf_header *)packet;
int tx_length, ret, amount;
p->preamble = HF_PREAMBLE;
p->operation_code = opcode;
p->chip_address = chip_address;
p->core_address = core_address;
p->hdata = htole16(hdata);
p->data_length = len / 4;
p->crc8 = hfa_crc8(packet);
if (len)
memcpy(&packet[sizeof(struct hf_header)], data, len);
tx_length = sizeof(struct hf_header) + len;
ret = usb_write(hashfast, (char *)packet, tx_length, &amount, C_NULL);
return ((ret >= 0) && (amount == tx_length));
}
static bool hfa_send_frame(struct cgpu_info *hashfast, uint8_t opcode, uint16_t hdata,
uint8_t *data, int len)
{
uint8_t packet[256];
struct hf_header *p = (struct hf_header *)packet;
int tx_length;
p->preamble = HF_PREAMBLE;
p->operation_code = hfa_cmds[opcode].cmd;
p->chip_address = HF_GWQ_ADDRESS;
p->core_address = 0;
p->hdata = htole16(hdata);
p->data_length = len / 4;
p->crc8 = hfa_crc8(packet);
if (len)
memcpy(&packet[sizeof(struct hf_header)], data, len);
tx_length = sizeof(struct hf_header) + len;
return (__hfa_send_frame(hashfast, opcode, tx_length, packet));
}
/* Send an already assembled packet, consisting of an 8 byte header which may
* or may not be followed by a packet body. */
static bool hfa_send_packet(struct cgpu_info *hashfast, struct hf_header *h, int cmd)
{
int amount, ret, len;
if (unlikely(hashfast->usbinfo.nodev))
return false;
len = sizeof(*h) + h->data_length * 4;
ret = usb_write(hashfast, (char *)h, len, &amount, hfa_cmds[cmd].usb_cmd);
if (ret < 0 || amount != len) {
applog(LOG_WARNING, "%s %s: send_packet: %s USB Send error, ret %d amount %d vs. length %d",
hashfast->drv->name, hashfast->unique_id, hfa_cmds[cmd].cmd_name, ret, amount, len);
return false;
}
return true;
}
#define HFA_GET_HEADER_BUFSIZE 512
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;
cgtimer_t ts_start;
char buf[HFA_GET_HEADER_BUFSIZE];
char *header;
if (unlikely(hashfast->usbinfo.nodev))
return false;
orig_len = len = sizeof(*h);
/* Read for up to 500ms till we find the first occurrence of HF_PREAMBLE
* though it should be the first byte unless we get woefully out of
* sync. */
cgtimer_time(&ts_start);
do {
cgtimer_t ts_now, ts_diff;
cgtimer_time(&ts_now);
cgtimer_sub(&ts_now, &ts_start, &ts_diff);
if (cgtimer_to_ms(&ts_diff) > 500)
return false;
if (unlikely(hashfast->usbinfo.nodev))
return false;
if(ofs + len > HFA_GET_HEADER_BUFSIZE) {
// Not expected to happen.
applog(LOG_WARNING, "hfa_get_header() tried to overflow buf[].");
return false;
}
ret = usb_read(hashfast, buf + ofs, len, &amount, C_HF_GETHEADER);
if (unlikely(ret && ret != LIBUSB_ERROR_TIMEOUT))
return false;
ofs += amount;
header = memchr(buf, HF_PREAMBLE, ofs);
if (header) {
/* Toss any leading data we can't use */
if (header != buf) {
memmove(buf, header, ofs);
ofs -= header - buf;
}
len -= ofs;
}
else {
/* HF_PREAMBLE not found, toss all the useless leading data. */
ofs = 0;
len = sizeof(*h);
}
} while (len > 0);
memcpy(h, header, orig_len);
*computed_crc = hfa_crc8((uint8_t *)h);
return true;
}
static bool hfa_get_data(struct cgpu_info *hashfast, char *buf, int len4)
{
int amount, ret, len = len4 * 4;
if (unlikely(hashfast->usbinfo.nodev))
return false;
ret = usb_read(hashfast, buf, len, &amount, C_HF_GETDATA);
if (ret)
return false;
if (amount != len) {
applog(LOG_WARNING, "%s %s: get_data: Strange amount returned %d vs. expected %d",
hashfast->drv->name, hashfast->unique_id, amount, len);
return false;
}
return true;
}
static const char *hf_usb_init_errors[] = {
"Success",
"Reset timeout",
"Address cycle timeout",
"Clockgate operation timeout",
"Configuration operation timeout",
"Excessive core failures",
"All cores failed diagnostics",
"Too many groups configured - increase ntime roll amount",
"Chaining connections detected but secondary board(s) did not respond",
"Secondary board communication error",
"Main board 12V power is bad",
"Secondary board(s) 12V power is bad",
"Main board FPGA programming error",
"Main board FPGA SPI read timeout",
"Main board FPGA Bad magic number",
"Main board FPGA SPI write timeout",
"Main board FPGA register read/write test failed",
"ASIC core power fault",
"Dynamic baud rate change timeout",
"Address failure",
"Regulator programming error",
"Address range inconsistent after mixed reconfiguration",
"Timeout after mixed reconfiguration"
};
static bool hfa_clear_readbuf(struct cgpu_info *hashfast);
struct op_nameframe {
struct hf_header h;
char name[32];
} __attribute__((packed));
static void hfa_write_opname(struct cgpu_info *hashfast, struct hashfast_info *info)
{
const uint8_t opcode = HF_USB_CMD(OP_NAME);
struct op_nameframe nameframe;
struct hf_header *h = (struct hf_header *)&nameframe;
const int tx_length = sizeof(struct op_nameframe);
memset(&nameframe, 0, sizeof(nameframe));
strncpy(nameframe.name, info->op_name, 30);
h->preamble = HF_PREAMBLE;
h->operation_code = hfa_cmds[opcode].cmd;
h->core_address = 1;
h->data_length = 32 / 4;
h->crc8 = hfa_crc8((unsigned char *)h);
applog(LOG_DEBUG, "%s %d: Opname being set to %s", hashfast->drv->name,
hashfast->device_id, info->op_name);
__hfa_send_frame(hashfast, opcode, tx_length, (uint8_t *)&nameframe);
}
/* If no opname or an invalid opname is set, change it to the serial number if
* it exists, or a random name based on timestamp if not. */
static void hfa_choose_opname(struct cgpu_info *hashfast, struct hashfast_info *info)
{
uint64_t usecs;
if (info->serial_number)
sprintf(info->op_name, "%08x", info->serial_number);
else {
struct timeval tv_now;
cgtime(&tv_now);
usecs = (uint64_t)(tv_now.tv_sec) * (uint64_t)1000000 + (uint64_t)tv_now.tv_usec;
sprintf(info->op_name, "%lx", (long unsigned int)usecs);
}
hfa_write_opname(hashfast, info);
}
// Generic setting header
struct hf_settings_data {
uint8_t revision;
uint8_t ref_frequency;
uint16_t magic;
uint16_t frequency0;
uint16_t voltage0;
uint16_t frequency1;
uint16_t voltage1;
uint16_t frequency2;
uint16_t voltage2;
uint16_t frequency3;
uint16_t voltage3;
} __attribute__((packed,aligned(4)));
static bool hfa_set_voltages(struct cgpu_info *hashfast, struct hashfast_info *info)
{
struct hf_settings_data op_settings_data;
op_settings_data.revision = 1;
op_settings_data.ref_frequency = 25;
op_settings_data.magic = HFA_MAGIC_SETTINGS_VALUE;
op_settings_data.frequency0 = info->hash_clock_rate;
op_settings_data.voltage0 = info->hash_voltage;
op_settings_data.frequency1 = info->hash_clock_rate;
op_settings_data.voltage1 = info->hash_voltage;
op_settings_data.frequency2 = info->hash_clock_rate;
op_settings_data.voltage2 = info->hash_voltage;
op_settings_data.frequency3 = info->hash_clock_rate;
op_settings_data.voltage3 = info->hash_voltage;
hfa_send_generic_frame(hashfast, OP_SETTINGS, 0x00, 0x01, HFA_MAGIC_SETTINGS_VALUE,
(uint8_t *)&op_settings_data, sizeof(op_settings_data));
// reset the board once to switch to new voltage settings
hfa_send_generic_frame(hashfast, OP_POWER, 0xff, 0x00, 0x1, NULL, 0);
hfa_send_generic_frame(hashfast, OP_POWER, 0xff, 0x00, 0x2, NULL, 0);
return true;
}
static bool hfa_send_shutdown(struct cgpu_info *hashfast);
static bool hfa_reset(struct cgpu_info *hashfast, struct hashfast_info *info)
{
struct hf_usb_init_header usb_init[2], *hu = usb_init;
struct hf_usb_init_base *db;
struct hf_usb_init_options *ho;
int retries = 0, i;
bool ret = false;
char buf[1024];
struct hf_header *h = (struct hf_header *)buf;
uint8_t hcrc;
/* Hash clock rate in Mhz. Set to opt_hfa_hash_clock if it has not
* been inherited across a restart. */
if (!info->hash_clock_rate)
info->hash_clock_rate = opt_hfa_hash_clock;
info->group_ntime_roll = opt_hfa_ntime_roll;
info->core_ntime_roll = 1;
// Assemble the USB_INIT request
memset(hu, 0, sizeof(*hu));
hu->preamble = HF_PREAMBLE;
hu->operation_code = OP_USB_INIT;
hu->protocol = PROTOCOL_GLOBAL_WORK_QUEUE; // Protocol to use
if (!opt_hfa_noshed)
hu->shed_supported = true;
// Force PLL bypass
hu->pll_bypass = opt_hfa_pll_bypass;
hu->hash_clock = info->hash_clock_rate; // Hash clock rate in Mhz
if (info->group_ntime_roll > 1 && info->core_ntime_roll) {
ho = (struct hf_usb_init_options *)(hu + 1);
memset(ho, 0, sizeof(*ho));
ho->group_ntime_roll = info->group_ntime_roll;
ho->core_ntime_roll = info->core_ntime_roll;
hu->data_length = sizeof(*ho) / 4;
}
hu->crc8 = hfa_crc8((uint8_t *)hu);
applog(LOG_INFO, "%s %s: Sending OP_USB_INIT with GWQ protocol specified",
hashfast->drv->name, hashfast->unique_id);
resend:
if (unlikely(hashfast->usbinfo.nodev))
goto out;
if (!hfa_clear_readbuf(hashfast))
goto out;
if (!hfa_send_packet(hashfast, (struct hf_header *)hu, HF_USB_CMD(OP_USB_INIT)))
goto out;
// Check for the correct response.
// We extend the normal timeout - a complete device initialization, including
// bringing power supplies up from standby, etc., can take over a second.
tryagain:
for (i = 0; i < 10; i++) {
ret = hfa_get_header(hashfast, h, &hcrc);
if (unlikely(hashfast->usbinfo.nodev))
goto out;
if (ret)
break;
}
if (!ret) {
if (retries++ < 3)
goto resend;
applog(LOG_WARNING, "%s %s: OP_USB_INIT failed!", hashfast->drv->name, hashfast->unique_id);
goto out;
}
if (h->crc8 != hcrc) {
applog(LOG_WARNING, "%s %s: OP_USB_INIT failed! CRC mismatch", hashfast->drv->name, hashfast->unique_id);
ret = false;
goto out;
}
if (h->operation_code != OP_USB_INIT) {
// This can happen if valid packet(s) were in transit *before* the OP_USB_INIT arrived
// at the device, so we just toss the packets and keep looking for the response.
applog(LOG_WARNING, "%s %s: OP_USB_INIT: Tossing packet, valid but unexpected type %d",
hashfast->drv->name, hashfast->unique_id, h->operation_code);
hfa_get_data(hashfast, buf, h->data_length);
if (retries++ < 3)
goto tryagain;
ret = false;
goto out;
}
applog(LOG_DEBUG, "%s %s: Good reply to OP_USB_INIT", hashfast->drv->name, hashfast->unique_id);
applog(LOG_DEBUG, "%s %s: OP_USB_INIT: %d die in chain, %d cores, device_type %d, refclk %d Mhz",
hashfast->drv->name, hashfast->unique_id, h->chip_address, h->core_address, h->hdata & 0xff, (h->hdata >> 8) & 0xff);
// Save device configuration
info->asic_count = h->chip_address;
info->core_count = h->core_address;
info->device_type = (uint8_t)h->hdata;
info->ref_frequency = (uint8_t)(h->hdata >> 8);
info->hash_sequence_head = 0;
info->hash_sequence_tail = 0;
info->device_sequence_tail = 0;
if (info->asic_count == 12)
hashfast->drv->name = "HFS";
else if (info->asic_count == 4)
hashfast->drv->name = "HFB";
// Size in bytes of the core bitmap in bytes
info->core_bitmap_size = (((info->asic_count * info->core_count) + 31) / 32) * 4;
// Get the usb_init_base structure
if (!hfa_get_data(hashfast, (char *)&info->usb_init_base, U32SIZE(info->usb_init_base))) {
applog(LOG_WARNING, "%s %s: OP_USB_INIT failed! Failure to get usb_init_base data",
hashfast->drv->name, hashfast->unique_id);
ret = false;
goto out;
}
db = &info->usb_init_base;
info->firmware_version = ((db->firmware_rev >> 8) & 0xff) + (double)(db->firmware_rev & 0xff) / 10.0;
info->hardware_version = ((db->hardware_rev >> 8) & 0xff) + (double)(db->hardware_rev & 0xff) / 10.0;
applog(LOG_INFO, "%s %s: firmware_rev: %.1f", hashfast->drv->name, hashfast->unique_id,
info->firmware_version);
applog(LOG_INFO, "%s %s: hardware_rev: %.1f", hashfast->drv->name, hashfast->unique_id,
info->hardware_version);
applog(LOG_INFO, "%s %s: serial number: %08x", hashfast->drv->name, hashfast->unique_id,
db->serial_number);
applog(LOG_INFO, "%s %s: hash clockrate: %d Mhz", hashfast->drv->name, hashfast->unique_id,
db->hash_clockrate);
applog(LOG_INFO, "%s %s: inflight_target: %d", hashfast->drv->name, hashfast->unique_id,
db->inflight_target);
applog(LOG_INFO, "%s %s: sequence_modulus: %d", hashfast->drv->name, hashfast->unique_id,
db->sequence_modulus);
// Now a copy of the config data used
if (!hfa_get_data(hashfast, (char *)&info->config_data, U32SIZE(info->config_data))) {
applog(LOG_WARNING, "%s %s: OP_USB_INIT failed! Failure to get config_data",
hashfast->drv->name, hashfast->unique_id);
ret = false;
goto out;
}
// Now the core bitmap
info->core_bitmap = malloc(info->core_bitmap_size);
if (!info->core_bitmap)
quit(1, "Failed to malloc info core bitmap in hfa_reset");
if (!hfa_get_data(hashfast, (char *)info->core_bitmap, info->core_bitmap_size / 4)) {
applog(LOG_WARNING, "%s %s: OP_USB_INIT failed! Failure to get core_bitmap", hashfast->drv->name, hashfast->unique_id);
ret = false;
goto out;
}
// See if the initialization suceeded
if (db->operation_status) {
applog(LOG_ERR, "%s %s: OP_USB_INIT failed! Operation status %d (%s)",
hashfast->drv->name, hashfast->unique_id, db->operation_status,
(db->operation_status < sizeof(hf_usb_init_errors)/sizeof(hf_usb_init_errors[0])) ?
hf_usb_init_errors[db->operation_status] : "Unknown error code");
ret = false;
switch (db->operation_status) {
case E_CORE_POWER_FAULT:
for (i = 0; i < 4; i++) {
if (((db->extra_status_1 >> i) & 0x11) == 0x1) {
applog(LOG_ERR, "%s %s: OP_USB_INIT: Quadrant %d (of 4) regulator failure",
hashfast->drv->name, hashfast->unique_id, i + 1);
}
}
break;
default:
break;
}
goto out;
}
if (!db->hash_clockrate) {
applog(LOG_INFO, "%s %s: OP_USB_INIT failed! Clockrate reported as zero",
hashfast->drv->name, hashfast->unique_id);
ret = false;
goto out;
}
info->num_sequence = db->sequence_modulus;
info->serial_number = db->serial_number;
info->base_clock = db->hash_clockrate;
ret = hfa_clear_readbuf(hashfast);
out:
if (!ret) {
hfa_send_shutdown(hashfast);
usb_nodev(hashfast);
}
return ret;
}
static bool hfa_clear_readbuf(struct cgpu_info *hashfast)
{
int amount, ret = 0;
char buf[512];
do {
if (hashfast->usbinfo.nodev) {
ret = LIBUSB_ERROR_NO_DEVICE;
break;
}
ret = usb_read(hashfast, buf, 512, &amount, C_HF_CLEAR_READ);
} while (!ret && amount);
if (ret && ret != LIBUSB_ERROR_TIMEOUT)
return false;
return true;
}
static bool hfa_send_shutdown(struct cgpu_info *hashfast)
{
bool ret = false;
if (hashfast->usbinfo.nodev)
return ret;
/* Send a restart before the shutdown frame to tell the device to
* discard any work it thinks is in flight for a cleaner restart. */
if (!hfa_send_frame(hashfast, HF_USB_CMD(OP_WORK_RESTART), 0, (uint8_t *)NULL, 0))
return ret;
if (hfa_send_frame(hashfast, HF_USB_CMD(OP_USB_SHUTDOWN), 0, NULL, 0)) {
/* Wait to allow device to properly shut down. */
cgsleep_ms(1000);
ret = true;
}
return ret;
}
static struct cgpu_info *hfa_old_device(struct cgpu_info *hashfast, struct hashfast_info *info)
{
struct cgpu_info *cgpu, *found = NULL;
struct hashfast_info *cinfo = NULL;
int i;
/* See if we can find a zombie instance of the same device */
for (i = 0; i < mining_threads; i++) {
cgpu = mining_thr[i]->cgpu;
if (!cgpu)
continue;
if (cgpu == hashfast)
continue;
if (cgpu->drv->drv_id != DRIVER_hashfast)
continue;
if (!cgpu->usbinfo.nodev)
continue;
cinfo = cgpu->device_data;
if (!cinfo)
continue;
if (info->op_name[0] != '\0' && !strncmp(info->op_name, cinfo->op_name, 32)) {
found = cgpu;
break;
}
if (info->serial_number && info->serial_number == cinfo->serial_number) {
found = cgpu;
break;
}
}
return found;
}
static void hfa_set_clock(struct cgpu_info *hashfast, struct hashfast_info *info)
{
uint16_t hdata;
int i;
hdata = (WR_CLOCK_VALUE << WR_COMMAND_SHIFT) | info->hash_clock_rate;
hfa_send_frame(hashfast, HF_USB_CMD(OP_WORK_RESTART), hdata, (uint8_t *)NULL, 0);
/* We won't know what the real clock is in this case without a
* usb_init_base message so we have to assume it's what we asked. */
info->base_clock = info->hash_clock_rate;
for (i = 0; i < info->asic_count; i++)
info->die_data[i].hash_clock = info->base_clock;
}
/* Look for an op name match and apply any options to its first attempted
* init sequence. This function allows any arbitrary number of extra parameters
* to be added in the future. */
static void hfa_check_options(struct hashfast_info *info)
{
char *p, *options, *found = NULL, *marker;
int maxlen, option = 0;
if (!opt_hfa_options)
return;
if (!info->op_name)
return;
maxlen = strlen(info->op_name);
options = strdup(opt_hfa_options);
for (p = strtok(options, ","); p; p = strtok(NULL, ",")) {
int cmplen = strlen(p);
if (maxlen < cmplen)
cmplen = maxlen;
if (cmplen < maxlen)
continue;
if (!strncmp(info->op_name, p, cmplen)) {
found = strdup(p);
break;
}
}
free(options);
if (!found)
return;
for (p = strtok(found, ":"); p; p = strtok(NULL, ":")) {
long lval;
/* Parse each option in order, leaving room to add more */
switch(option++) {
default:
break;
case 1:
lval = strtol(p, NULL, 10);
if (lval < HFA_CLOCK_MIN || lval > HFA_CLOCK_MAX) {
applog(LOG_ERR, "Invalid clock speed %ld set with hashfast option for %s",
lval, info->op_name);
break;
}
info->hash_clock_rate = lval;
marker = strchr(p,'@');
if (marker != NULL) {
lval = strtol(marker+1, NULL, 10);
if (lval < HFA_VOLTAGE_MIN || lval > HFA_VOLTAGE_MAX) {
applog(LOG_ERR, "Invalid core voltage %ld set with hashfast option for %s",
lval, info->op_name);
break;
}
info->hash_voltage = lval;
}
break;
}
}
free(found);
}
static bool hfa_detect_common(struct cgpu_info *hashfast)
{
struct hashfast_info *info;
char buf[1024];
struct hf_header *h = (struct hf_header *)buf;
uint8_t hcrc;
bool ret;
int i;
info = calloc(sizeof(struct hashfast_info), 1);
if (!info)
quit(1, "Failed to calloc hashfast_info in hfa_detect_common");
hashfast->device_data = info;
/* Try sending and receiving an OP_NAME */
ret = hfa_send_frame(hashfast, HF_USB_CMD(OP_NAME), 0, (uint8_t *)NULL, 0);
if (hashfast->usbinfo.nodev) {
ret = false;
goto out;
}
if (!ret) {
applog(LOG_WARNING, "%s %d: Failed to send OP_NAME!", hashfast->drv->name,
hashfast->device_id);
goto out;
}
ret = hfa_get_header(hashfast, h, &hcrc);
if (hashfast->usbinfo.nodev) {
ret = false;
goto out;
}
if (!ret) {
/* We should receive a valid header even if OP_NAME isn't
* supported by the firmware. */
applog(LOG_NOTICE, "%s %d: No response to name query - failed init or firmware upgrade required.",
hashfast->drv->name, hashfast->device_id);
ret = true;
} else {
/* Only try to parse the name if the firmware supports OP_NAME */
if (h->operation_code == OP_NAME) {
if (!hfa_get_data(hashfast, info->op_name, 32 / 4)) {
applog(LOG_WARNING, "%s %d: OP_NAME failed! Failure to get op_name data",
hashfast->drv->name, hashfast->device_id);
goto out;
}
info->has_opname = info->opname_valid = true;
applog(LOG_DEBUG, "%s: Returned an OP_NAME", hashfast->drv->name);
for (i = 0; i < 32; i++) {
if (i > 0 && info->op_name[i] == '\0')
break;
/* Make sure the op_name is valid ascii only */
if (info->op_name[i] < 32 || info->op_name[i] > 126) {
info->opname_valid = false;
break;
}
}
}
}
info->cgpu = hashfast;
/* Look for a matching zombie instance and inherit values from it if it
* exists. */
if (info->has_opname && info->opname_valid) {
info->old_cgpu = hfa_old_device(hashfast, info);
if (info->old_cgpu) {
struct hashfast_info *cinfo = info->old_cgpu->device_data;
applog(LOG_NOTICE, "%s: Found old instance by op name %s at device %d",
hashfast->drv->name, info->op_name, info->old_cgpu->device_id);
info->resets = ++cinfo->resets;
info->hash_clock_rate = cinfo->hash_clock_rate;
} else {
applog(LOG_NOTICE, "%s: Found device with name %s", hashfast->drv->name,
info->op_name);
hfa_check_options(info);
}
}
out:
if (!ret) {
if (!hashfast->usbinfo.nodev)
hfa_clear_readbuf(hashfast);
hashfast->device_data = NULL;
free(info);
}
return ret;
}
static bool hfa_initialise(struct cgpu_info *hashfast)
{
int err = 7;
if (hashfast->usbinfo.nodev)
return false;
if (!hfa_clear_readbuf(hashfast))
return false;
#ifdef WIN32
err = usb_transfer(hashfast, 0, 9, 1, 0, C_ATMEL_RESET);
if (!err)
err = usb_transfer(hashfast, 0x21, 0x22, 0, 0, C_ATMEL_OPEN);
if (!err) {
uint32_t buf[2];
/* Magic sequence to reset device only really needed for windows
* but harmless on linux. */
buf[0] = 0x80250000;
buf[1] = 0x00000800;
err = usb_transfer_data(hashfast, 0x21, 0x20, 0x0000, 0, buf,
7, C_ATMEL_INIT);
}
if (err < 0) {
applog(LOG_INFO, "%s %s: Failed to open with error %s",
hashfast->drv->name, hashfast->unique_id, libusb_error_name(err));
}
#endif
/* Must have transmitted init sequence sized buffer */
return (err == 7);
}
static void hfa_dfu_boot(struct cgpu_info *hashfast)
{
bool ret;
if (unlikely(hashfast->usbinfo.nodev))
return;
ret = hfa_send_frame(hashfast, HF_USB_CMD(OP_DFU), 0, NULL, 0);
applog(LOG_WARNING, "%s %s: %03d:%03d DFU Boot %s", hashfast->drv->name, hashfast->unique_id,
hashfast->usbinfo.bus_number, hashfast->usbinfo.device_address,
ret ? "Succeeded" : "Failed");
}
static struct cgpu_info *hfa_detect_one(libusb_device *dev, struct usb_find_devices *found)
{
struct cgpu_info *hashfast;
hashfast = usb_alloc_cgpu(&hashfast_drv, HASHFAST_MINER_THREADS);
if (!hashfast)
quit(1, "Failed to usb_alloc_cgpu hashfast");
hashfast->unique_id = "";
if (!usb_init(hashfast, dev, found)) {
hashfast = usb_free_cgpu(hashfast);
return NULL;
}
hashfast->usbdev->usb_type = USB_TYPE_STD;
if (!hfa_initialise(hashfast)) {
hashfast = usb_free_cgpu(hashfast);
return NULL;
}
if (opt_hfa_dfu_boot) {
hfa_dfu_boot(hashfast);
hashfast = usb_free_cgpu(hashfast);
opt_hfa_dfu_boot = false;
return NULL;
}
if (!hfa_detect_common(hashfast)) {
usb_uninit(hashfast);
hashfast = usb_free_cgpu(hashfast);
return NULL;
}
if (!add_cgpu(hashfast))
return NULL;
if (opt_hfa_name) {
struct hashfast_info *info = hashfast->device_data;
strncpy(info->op_name, opt_hfa_name, 30);
applog(LOG_NOTICE, "%s %d %03d:%03d: Writing name %s", hashfast->drv->name,
hashfast->device_id, hashfast->usbinfo.bus_number, hashfast->usbinfo.device_address,
info->op_name);
hfa_write_opname(hashfast, info);
opt_hfa_name = NULL;
}
return hashfast;
}
static void hfa_detect(bool __maybe_unused hotplug)
{
/* Set up the CRC tables only once. */
if (!hfa_crc8_set)
hfa_init_crc8();
usb_detect(&hashfast_drv, hfa_detect_one);
}
static bool hfa_get_packet(struct cgpu_info *hashfast, struct hf_header *h)
{
uint8_t hcrc;
bool ret;
if (unlikely(hashfast->usbinfo.nodev))
return false;
ret = hfa_get_header(hashfast, h, &hcrc);
if (unlikely(!ret))
goto out;
if (unlikely(h->crc8 != hcrc)) {
applog(LOG_WARNING, "%s %s: Bad CRC %d vs %d, discarding packet",
hashfast->drv->name, hashfast->unique_id, h->crc8, hcrc);
ret = false;
goto out;
}
if (h->data_length > 0)
ret = hfa_get_data(hashfast, (char *)(h + 1), h->data_length);
if (unlikely(!ret)) {
applog(LOG_WARNING, "%s %s: Failed to get data associated with header",
hashfast->drv->name, hashfast->unique_id);
}
out:
return ret;
}
static void hfa_running_shutdown(struct cgpu_info *hashfast, struct hashfast_info *info);
static void hfa_parse_gwq_status(struct cgpu_info *hashfast, struct hashfast_info *info,
struct hf_header *h)
{
struct hf_gwq_data *g = (struct hf_gwq_data *)(h + 1);
struct work *work;
applog(LOG_DEBUG, "%s %s: OP_GWQ_STATUS, device_head %4d tail %4d my tail %4d shed %3d inflight %4d",
hashfast->drv->name, hashfast->unique_id, g->sequence_head, g->sequence_tail, info->hash_sequence_tail,
g->shed_count, HF_SEQUENCE_DISTANCE(info->hash_sequence_head,g->sequence_tail));
/* This is a special flag that the thermal overload has been tripped */