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driver-bitforce.c
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driver-bitforce.c
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/*
* Copyright 2012-2014 Luke Dashjr
* Copyright 2012-2013 Con Kolivas
*
* 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 <ctype.h>
#include <limits.h>
#include <math.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <sys/time.h>
#include <unistd.h>
#include "compat.h"
#include "deviceapi.h"
#include "miner.h"
#include "lowlevel.h"
#ifdef NEED_BFG_LOWL_MSWIN
#include "lowl-mswin.h"
#endif
#include "lowl-pci.h"
#include "lowl-vcom.h"
#include "util.h"
#define BFL_PCI_VENDOR_ID 0x1cf9
#define BITFORCE_SLEEP_MS 500
#define BITFORCE_VCOM_TIMEOUT_DSEC 250
#define BITFORCE_VCOM_TIMEOUT_DSEC_ZCX 10
#define BITFORCE_TIMEOUT_S 7
#define BITFORCE_TIMEOUT_MS (BITFORCE_TIMEOUT_S * 1000)
#define BITFORCE_LONG_TIMEOUT_S 25
#define BITFORCE_LONG_TIMEOUT_MS (BITFORCE_LONG_TIMEOUT_S * 1000)
#define BITFORCE_CHECK_INTERVAL_MS 10
#define WORK_CHECK_INTERVAL_MS 50
#define tv_to_ms(tval) ((unsigned long)(tval.tv_sec * 1000 + tval.tv_usec / 1000))
#define TIME_AVG_CONSTANT 8
#define BITFORCE_QRESULT_LINE_LEN 165
#define BITFORCE_MAX_QUEUED_MAX 40
#define BITFORCE_MIN_QUEUED_MAX 10
#define BITFORCE_MAX_QRESULTS 16
#define BITFORCE_GOAL_QRESULTS 5
#define BITFORCE_MIN_QRESULT_WAIT BITFORCE_CHECK_INTERVAL_MS
#define BITFORCE_MAX_QRESULT_WAIT 1000
#define BITFORCE_MAX_BQUEUE_AT_ONCE_65NM 5
#define BITFORCE_MAX_BQUEUE_AT_ONCE_28NM 20
enum bitforce_proto {
BFP_WORK = 0,
BFP_RANGE = 1,
BFP_BQUEUE = 3,
BFP_PQUEUE = 4,
};
static const char *protonames[] = {
"full work",
"nonce range",
NULL,
"bulk queue",
"parallel queue",
};
BFG_REGISTER_DRIVER(bitforce_drv)
BFG_REGISTER_DRIVER(bitforce_queue_api)
static const struct bfg_set_device_definition bitforce_set_device_funcs[];
enum bitforce_style {
BFS_FPGA,
BFS_65NM,
BFS_28NM,
};
struct bitforce_lowl_interface {
bool (*open)(struct cgpu_info *);
void (*close)(struct cgpu_info *);
ssize_t (*read)(void *, size_t, struct cgpu_info *);
void (*gets)(char *, size_t, struct cgpu_info *);
ssize_t (*write)(struct cgpu_info *, const void *, ssize_t);
bool (*set_timeout)(struct cgpu_info* , uint8_t);
};
struct bitforce_data {
struct bitforce_lowl_interface *lowlif;
bool is_open;
struct lowl_pci_handle *lph;
uint8_t lasttag;
uint8_t lasttag_read;
bytes_t getsbuf;
int xlink_id;
unsigned char next_work_ob[70]; // Data aligned for 32-bit access
unsigned char *next_work_obs; // Start of data to send
unsigned char next_work_obsz;
const char *next_work_cmd;
char noncebuf[14 + ((BITFORCE_MAX_QRESULTS+1) * BITFORCE_QRESULT_LINE_LEN)];
int poll_func;
enum bitforce_proto proto;
enum bitforce_style style;
int queued;
int queued_max;
int parallel;
bool parallel_protocol;
bool missing_zwx;
bool already_have_results;
bool just_flushed;
int max_queue_at_once;
int ready_to_queue;
bool want_to_send_queue;
unsigned result_busy_polled;
unsigned sleep_ms_default;
struct timeval tv_hashmeter_start;
float temp[2];
long *volts;
int volts_count;
unsigned max_queueid;
bool probed;
bool supports_fanspeed;
};
// Code must deal with a timeout
static
bool bitforce_vcom_open(struct cgpu_info * const dev)
{
struct bitforce_data * const devdata = dev->device_data;
const char * const devpath = dev->device_path;
dev->device_fd = serial_open(devpath, 0, BITFORCE_VCOM_TIMEOUT_DSEC, true);
devdata->is_open = (dev->device_fd != -1);
return devdata->is_open;
}
static
void bitforce_vcom_close(struct cgpu_info * const dev)
{
struct bitforce_data * const devdata = dev->device_data;
if (devdata->is_open)
{
serial_close(dev->device_fd);
dev->device_fd = -1;
devdata->is_open = false;
}
}
static
ssize_t bitforce_vcom_read(void * const buf_p, size_t bufLen, struct cgpu_info * const dev)
{
uint8_t *buf = buf_p;
const int fd = dev->device_fd;
ssize_t rv, ret = 0;
while (bufLen > 0)
{
rv = read(fd, buf, bufLen);
if (rv <= 0)
{
if (ret > 0)
return ret;
return rv;
}
buf += rv;
bufLen -= rv;
ret += rv;
}
return ret;
}
static
void bitforce_vcom_gets(char *buf, size_t bufLen, struct cgpu_info * const dev)
{
const int fd = dev->device_fd;
while (likely(bufLen > 1 && read(fd, buf, 1) == 1 && (buf++)[0] != '\n'))
{}
buf[0] = '\0';
}
static
ssize_t bitforce_vcom_write(struct cgpu_info * const dev, const void *buf, ssize_t bufLen)
{
const int fd = dev->device_fd;
if ((bufLen) != write(fd, buf, bufLen))
return 0;
else
return bufLen;
}
static
bool bitforce_vcom_set_timeout(struct cgpu_info * const dev, const uint8_t timeout)
{
const int fd = dev->device_fd;
return vcom_set_timeout(fd, timeout);
}
static struct bitforce_lowl_interface bfllif_vcom = {
.open = bitforce_vcom_open,
.close = bitforce_vcom_close,
.read = bitforce_vcom_read,
.gets = bitforce_vcom_gets,
.write = bitforce_vcom_write,
.set_timeout = bitforce_vcom_set_timeout,
};
#ifdef NEED_BFG_LOWL_PCI
static
bool bitforce_pci_open(struct cgpu_info * const dev)
{
const char * const devpath = dev->device_path;
struct bitforce_data * const devdata = dev->device_data;
devdata->lph = lowl_pci_open(devpath, LP_BARINFO(
LP_BAR(0, 0x1000, O_WRONLY),
LP_BAR(1, 0x1000, O_RDONLY),
LP_BAR(2, 0x80, O_RDWR),
));
if (!devdata->lph)
return false;
devdata->lasttag = (lowl_pci_get_word(devdata->lph, 2, 2) >> 16) & 0xff;
devdata->lasttag_read = 0;
bytes_reset(&devdata->getsbuf);
devdata->is_open = true;
return devdata->is_open;
}
static
void bitforce_pci_close(struct cgpu_info * const dev)
{
struct bitforce_data * const devdata = dev->device_data;
if (devdata->is_open)
{
lowl_pci_close(devdata->lph);
devdata->is_open = false;
}
}
static
void _bitforce_pci_read(struct cgpu_info * const dev)
{
struct bitforce_data * const devdata = dev->device_data;
const uint32_t looking_for = (uint32_t)devdata->lasttag << 0x10;
uint32_t resp;
bytes_t *b = &devdata->getsbuf;
if (devdata->lasttag != devdata->lasttag_read)
{
if (unlikely(bytes_len(b)))
{
applog(LOG_WARNING, "%s: %ld bytes remaining in read buffer at new command", dev->dev_repr, (long)bytes_len(&devdata->getsbuf));
bytes_reset(b);
}
while (((resp = lowl_pci_get_word(devdata->lph, 2, 2)) & 0xff0000) != looking_for)
cgsleep_ms(1);
resp &= 0xffff;
if (unlikely(resp > 0x1000))
resp = 0x1000;
void * const buf = bytes_preappend(b, resp + LOWL_PCI_GET_DATA_PADDING);
if (lowl_pci_read_data(devdata->lph, buf, resp, 1, 0))
bytes_postappend(b, resp);
devdata->lasttag_read = devdata->lasttag;
}
}
static
ssize_t bitforce_pci_read(void * const buf, const size_t bufLen, struct cgpu_info * const dev)
{
struct bitforce_data * const devdata = dev->device_data;
bytes_t *b = &devdata->getsbuf;
_bitforce_pci_read(dev);
ssize_t datalen = bytes_len(b);
if (datalen <= 0)
return datalen;
if (datalen > bufLen)
datalen = bufLen;
memcpy(buf, bytes_buf(b), datalen);
bytes_shift(b, datalen);
return datalen;
}
static
void bitforce_pci_gets(char * const buf, size_t bufLen, struct cgpu_info * const dev)
{
struct bitforce_data * const devdata = dev->device_data;
bytes_t *b = &devdata->getsbuf;
_bitforce_pci_read(dev);
ssize_t linelen = (bytes_find(b, '\n') + 1) ?: bytes_len(b);
if (linelen > --bufLen)
linelen = bufLen;
memcpy(buf, bytes_buf(b), linelen);
bytes_shift(b, linelen);
buf[linelen] = '\0';
}
static
ssize_t bitforce_pci_write(struct cgpu_info * const dev, const void * const bufp, ssize_t bufLen)
{
const uint8_t *buf = bufp;
struct bitforce_data * const devdata = dev->device_data;
if (unlikely(bufLen > 0x1000))
return 0;
if (!lowl_pci_set_data(devdata->lph, buf, bufLen, 0, 0))
return 0;
if (++devdata->lasttag == 0)
++devdata->lasttag;
if (!lowl_pci_set_word(devdata->lph, 2, 0, ((uint32_t)devdata->lasttag << 0x10) | bufLen))
return 0;
return bufLen;
}
static struct bitforce_lowl_interface bfllif_pci = {
.open = bitforce_pci_open,
.close = bitforce_pci_close,
.read = bitforce_pci_read,
.gets = bitforce_pci_gets,
.write = bitforce_pci_write,
};
#endif
static
void bitforce_close(struct cgpu_info * const proc)
{
struct cgpu_info * const dev = proc->device;
struct bitforce_data * const devdata = dev->device_data;
if (devdata->is_open)
devdata->lowlif->close(dev);
}
static
bool bitforce_open(struct cgpu_info * const proc)
{
struct cgpu_info * const dev = proc->device;
struct bitforce_data * const devdata = dev->device_data;
bitforce_close(proc);
return devdata->lowlif->open(dev);
}
static
ssize_t bitforce_read(struct cgpu_info * const proc, void * const buf, const size_t bufLen)
{
struct cgpu_info * const dev = proc->device;
struct bitforce_data * const devdata = dev->device_data;
ssize_t rv;
if (likely(devdata->is_open))
{
if (bufLen == 0)
rv = 0;
else
rv = devdata->lowlif->read(buf, bufLen, dev);
}
else
rv = -1;
if (unlikely(opt_dev_protocol))
{
size_t datalen = (rv > 0) ? rv : 0;
char hex[(rv * 2) + 1];
bin2hex(hex, buf, datalen);
applog(LOG_DEBUG, "DEVPROTO: %s: READ(%lu): %s",
dev->dev_repr, (unsigned long)bufLen, hex);
}
return rv;
}
static
void bitforce_gets(char * const buf, const size_t bufLen, struct cgpu_info * const proc)
{
struct cgpu_info * const dev = proc->device;
struct bitforce_data * const devdata = dev->device_data;
if (likely(devdata->is_open))
devdata->lowlif->gets(buf, bufLen, dev);
else
buf[0] = '\0';
if (unlikely(opt_dev_protocol))
applog(LOG_DEBUG, "DEVPROTO: %s: GETS: %s", dev->dev_repr, buf);
}
static
ssize_t bitforce_write(struct cgpu_info * const proc, const void * const buf, const ssize_t bufLen)
{
struct cgpu_info * const dev = proc->device;
struct bitforce_data * const devdata = dev->device_data;
if (unlikely(!devdata->is_open))
return 0;
return devdata->lowlif->write(dev, buf, bufLen);
}
static ssize_t bitforce_send(struct cgpu_info * const proc, const void *buf, ssize_t bufLen)
{
struct bitforce_data * const data = proc->device_data;
const int procid = data->xlink_id;
if (!procid)
return bitforce_write(proc, buf, bufLen);
if (bufLen > 255)
return -1;
size_t bufLeft = bufLen + 3;
char realbuf[bufLeft], *bufp;
ssize_t rv;
memcpy(&realbuf[3], buf, bufLen);
realbuf[0] = '@';
realbuf[1] = bufLen;
realbuf[2] = procid;
bufp = realbuf;
do
{
rv = bitforce_write(proc, bufp, bufLeft);
if (rv <= 0)
return rv;
bufLeft -= rv;
}
while (bufLeft > 0);
return bufLen;
}
static
void bitforce_cmd1b(struct cgpu_info * const proc, void *buf, size_t bufsz, const char *cmd, size_t cmdsz)
{
if (unlikely(opt_dev_protocol))
applog(LOG_DEBUG, "DEVPROTO: %"PRIpreprv": CMD1: %s",
proc->proc_repr, cmd);
bitforce_send(proc, cmd, cmdsz);
bitforce_gets(buf, bufsz, proc);
}
static
void bitforce_cmd1c(struct cgpu_info * const proc, void *buf, size_t bufsz, void *cmd, size_t cmdsz)
{
if (unlikely(opt_dev_protocol))
{
char hex[(cmdsz * 2) + 1];
bin2hex(hex, cmd, cmdsz);
applog(LOG_DEBUG, "DEVPROTO: %"PRIpreprv": CMD1 HEX: %s",
proc->proc_repr, hex);
}
bitforce_send(proc, cmd, cmdsz);
bitforce_gets(buf, bufsz, proc);
}
static
void bitforce_cmd2(struct cgpu_info * const proc, void *buf, size_t bufsz, const char *cmd, void *data, size_t datasz)
{
bitforce_cmd1b(proc, buf, bufsz, cmd, 3);
if (strncasecmp(buf, "OK", 2))
return;
if (unlikely(opt_dev_protocol))
{
char hex[(datasz * 2) + 1];
bin2hex(hex, data, datasz);
applog(LOG_DEBUG, "DEVPROTO: %"PRIpreprv": CMD2: %s",
proc->proc_repr, hex);
}
bitforce_send(proc, data, datasz);
bitforce_gets(buf, bufsz, proc);
}
static
void bitforce_zgx(struct cgpu_info * const proc, void *buf, size_t bufsz)
{
struct cgpu_info * const dev = proc->device;
struct bitforce_data * const devdata = dev->device_data;
if (devdata->is_open && devdata->lowlif->set_timeout)
{
devdata->lowlif->set_timeout(dev, BITFORCE_VCOM_TIMEOUT_DSEC_ZCX);
bitforce_cmd1b(proc, buf, bufsz, "ZGX", 3);
devdata->lowlif->set_timeout(dev, BITFORCE_VCOM_TIMEOUT_DSEC);
}
else
bitforce_cmd1b(proc, buf, bufsz, "ZGX", 3);
}
struct bitforce_init_data {
struct bitforce_lowl_interface *lowlif;
enum bitforce_style style;
long devmask;
int *parallels;
unsigned queue_depth;
unsigned long scan_interval_ms;
unsigned max_queueid;
};
static
int bitforce_chips_to_plan_for(int parallel, int chipcount) {
if (parallel < 1)
return parallel;
return upper_power_of_two_u32(chipcount);
}
static
bool bitforce_lowl_match(const struct lowlevel_device_info * const info)
{
#ifdef NEED_BFG_LOWL_PCI
if (info->lowl == &lowl_pci)
return info->vid == BFL_PCI_VENDOR_ID;
#endif
#ifdef NEED_BFG_LOWL_MSWIN
if (lowl_mswin_match_guid(info, &WIN_GUID_DEVINTERFACE_MonarchKMDF))
return true;
#endif
return lowlevel_match_product(info, "BitFORCE", "SHA256");
}
char *bitforce_copy_name(char * const pdevbuf)
{
char *s;
if (likely((!memcmp(pdevbuf, ">>>ID: ", 7)) && (s = strstr(pdevbuf + 3, ">>>"))))
{
s[0] = '\0';
s = strdup(&pdevbuf[7]);
}
else
{
for (s = &pdevbuf[strlen(pdevbuf)]; isspace(*--s); )
*s = '\0';
s = strdup(pdevbuf);
}
return s;
}
static
bool bitforce_detect_oneof(const char * const devpath, struct bitforce_lowl_interface * const lowlif)
{
struct cgpu_info *bitforce;
char pdevbuf[0x100];
size_t pdevbuf_len;
char *s = NULL;
int procs = 1, parallel = -1;
long maxchipno = 0;
struct bitforce_init_data *initdata;
char *manuf = NULL;
struct bitforce_data dummy_bfdata = {
.lowlif = lowlif,
.xlink_id = 0,
};
struct cgpu_info dummy_cgpu = {
.device = &dummy_cgpu,
.dev_repr = "BFL",
.proc_repr = "BFL",
.device_path = devpath,
.device_data = &dummy_bfdata,
};
dummy_cgpu.device_fd = -1;
applog(LOG_DEBUG, "BFL: Attempting to open %s", devpath);
bitforce_open(&dummy_cgpu);
if (unlikely(!dummy_bfdata.is_open)) {
applog(LOG_DEBUG, "BFL: Failed to open %s", devpath);
return false;
}
bitforce_zgx(&dummy_cgpu, pdevbuf, sizeof(pdevbuf));
if (unlikely(!pdevbuf[0])) {
applog(LOG_DEBUG, "BFL: Error reading/timeout (ZGX)");
bitforce_close(&dummy_cgpu);
return 0;
}
if (unlikely(!strstr(pdevbuf, "SHA256"))) {
applog(LOG_DEBUG, "BFL: Didn't recognise BitForce on %s", devpath);
bitforce_close(&dummy_cgpu);
return false;
}
if (serial_claim_v(devpath, &bitforce_drv))
{
bitforce_close(&dummy_cgpu);
return false;
}
applog(LOG_DEBUG, "Found BitForce device on %s", devpath);
s = bitforce_copy_name(pdevbuf);
initdata = malloc(sizeof(*initdata));
*initdata = (struct bitforce_init_data){
.lowlif = lowlif,
.style = BFS_FPGA,
.queue_depth = BITFORCE_MAX_QUEUED_MAX,
};
bitforce_cmd1b(&dummy_cgpu, pdevbuf, sizeof(pdevbuf), "ZCX", 3);
for (int i = 0; (!pdevbuf[0]) && i < 4; ++i)
bitforce_gets(pdevbuf, sizeof(pdevbuf), &dummy_cgpu);
for ( ;
strncasecmp(pdevbuf, "OK", 2);
bitforce_gets(pdevbuf, sizeof(pdevbuf), &dummy_cgpu) )
{
pdevbuf_len = strlen(pdevbuf);
if (unlikely(!pdevbuf_len))
continue;
pdevbuf[pdevbuf_len-1] = '\0'; // trim newline
applog(LOG_DEBUG, " %s", pdevbuf);
if (!strncasecmp(pdevbuf, "PROCESSOR ", 10))
maxchipno = max(maxchipno, atoi(&pdevbuf[10]));
else
if (!strncasecmp(pdevbuf, "CHANNEL", 7))
maxchipno = max(maxchipno, atoi(&pdevbuf[7]));
else
if (!strncasecmp(pdevbuf, "CORTEX-", 7))
maxchipno = max(maxchipno, strtol(&pdevbuf[7], NULL, 0x10));
else
if (!strncasecmp(pdevbuf, "DEVICES IN CHAIN:", 17))
procs = atoi(&pdevbuf[17]);
else
if (!strncasecmp(pdevbuf, "CHAIN PRESENCE MASK:", 20))
initdata->devmask = strtol(&pdevbuf[20], NULL, 16);
else
if (!strncasecmp(pdevbuf, "DEVICE:", 7) && strstr(pdevbuf, "SC") && initdata->style == BFS_FPGA)
initdata->style = BFS_65NM;
else
if (!strncasecmp(pdevbuf, "CHIP PARALLELIZATION: YES @", 27))
parallel = atoi(&pdevbuf[27]);
else
if (!strncasecmp(pdevbuf, "ASIC CHANNELS:", 14))
{
parallel = atoi(&pdevbuf[14]);
initdata->style = BFS_28NM;
}
else
if (!strncasecmp(pdevbuf, "Queue Depth:", 12))
initdata->queue_depth = atoi(&pdevbuf[12]);
else
if (!strncasecmp(pdevbuf, "Scan Interval:", 14))
initdata->scan_interval_ms = atoi(&pdevbuf[14]);
else
if (!strncasecmp(pdevbuf, "Max Queue ID:", 13))
initdata->max_queueid = strtol(&pdevbuf[13], NULL, 0x10);
else
if (!strncasecmp(pdevbuf, "MANUFACTURER:", 13))
{
manuf = &pdevbuf[13];
while (manuf[0] && isspace(manuf[0]))
++manuf;
if (manuf[0])
manuf = strdup(manuf);
else
manuf = NULL;
}
}
parallel = bitforce_chips_to_plan_for(parallel, maxchipno);
initdata->parallels = malloc(sizeof(initdata->parallels[0]) * procs);
initdata->parallels[0] = parallel;
parallel = abs(parallel);
for (int proc = 1; proc < procs; ++proc)
{
applog(LOG_DEBUG, "Slave board %d:", proc);
initdata->parallels[proc] = -1;
maxchipno = 0;
bitforce_cmd1b(&dummy_cgpu, pdevbuf, sizeof(pdevbuf), "ZCX", 3);
for (int i = 0; (!pdevbuf[0]) && i < 4; ++i)
bitforce_gets(pdevbuf, sizeof(pdevbuf), &dummy_cgpu);
for ( ;
strncasecmp(pdevbuf, "OK", 2);
bitforce_gets(pdevbuf, sizeof(pdevbuf), &dummy_cgpu) )
{
pdevbuf_len = strlen(pdevbuf);
if (unlikely(!pdevbuf_len))
continue;
pdevbuf[pdevbuf_len-1] = '\0'; // trim newline
applog(LOG_DEBUG, " %s", pdevbuf);
if (!strncasecmp(pdevbuf, "PROCESSOR ", 10))
maxchipno = max(maxchipno, atoi(&pdevbuf[10]));
else
if (!strncasecmp(pdevbuf, "CHIP PARALLELIZATION: YES @", 27))
initdata->parallels[proc] = atoi(&pdevbuf[27]);
}
initdata->parallels[proc] = bitforce_chips_to_plan_for(initdata->parallels[proc], maxchipno);
parallel += abs(initdata->parallels[proc]);
}
bitforce_close(&dummy_cgpu);
if (unlikely((procs != 1 || parallel != 1) && initdata->style == BFS_FPGA))
{
// Only bitforce_queue supports parallelization and XLINK, so force SC mode and hope for the best
applog(LOG_WARNING, "SC features detected with non-SC device; this is not supported!");
initdata->style = BFS_65NM;
}
// We have a real BitForce!
bitforce = calloc(1, sizeof(*bitforce));
bitforce->drv = &bitforce_drv;
if (initdata->style != BFS_FPGA)
bitforce->drv = &bitforce_queue_api;
bitforce->device_path = strdup(devpath);
if (manuf)
bitforce->dev_manufacturer = manuf;
bitforce->deven = DEV_ENABLED;
bitforce->procs = parallel;
bitforce->threads = 1;
if (initdata->style != BFS_FPGA)
bitforce->cutofftemp = 85;
if (s)
bitforce->name = s;
bitforce->device_data = initdata;
// Skip fanspeed until we probe support for it
bitforce->set_device_funcs = &bitforce_set_device_funcs[1];
mutex_init(&bitforce->device_mutex);
return add_cgpu(bitforce);
}
static
bool bitforce_detect_one(const char * const devpath)
{
return bitforce_detect_oneof(devpath, &bfllif_vcom);
}
static
bool bitforce_lowl_probe(const struct lowlevel_device_info * const info)
{
#ifdef NEED_BFG_LOWL_PCI
if (info->lowl == &lowl_pci)
return bitforce_detect_oneof(info->path, &bfllif_pci);
#endif
#ifdef NEED_BFG_LOWL_MSWIN
if (lowl_mswin_match_guid(info, &WIN_GUID_DEVINTERFACE_MonarchKMDF))
return bitforce_detect_oneof(info->path, &bfllif_vcom);
#endif
return vcom_lowl_probe_wrapper(info, bitforce_detect_one);
}
struct bitforce_proc_data {
struct cgpu_info *cgpu;
bool handles_board; // The first processor handles the queue for the entire board
};
static void bitforce_clear_buffer(struct cgpu_info *);
static
void bitforce_comm_error(struct thr_info *thr)
{
struct cgpu_info *bitforce = thr->cgpu;
struct bitforce_data *data = bitforce->device_data;
data->noncebuf[0] = '\0';
applog(LOG_ERR, "%"PRIpreprv": Comms error", bitforce->proc_repr);
dev_error(bitforce, REASON_DEV_COMMS_ERROR);
inc_hw_errors_only(thr);
if (!bitforce_open(bitforce))
{
applog(LOG_ERR, "%s: Error reopening %s", bitforce->dev_repr, bitforce->device_path);
return;
}
/* empty read buffer */
bitforce_clear_buffer(bitforce);
}
static
void __bitforce_clear_buffer(struct cgpu_info * const dev)
{
char pdevbuf[0x100];
int count = 0;
do {
pdevbuf[0] = '\0';
bitforce_gets(pdevbuf, sizeof(pdevbuf), dev);
} while (pdevbuf[0] && (++count < 10));
}
static void bitforce_clear_buffer(struct cgpu_info *bitforce)
{
struct cgpu_info * const dev = bitforce->device;
struct bitforce_data * const devdata = dev->device_data;
pthread_mutex_t *mutexp = &bitforce->device->device_mutex;
mutex_lock(mutexp);
if (devdata->is_open)
{
applog(LOG_DEBUG, "%"PRIpreprv": Clearing read buffer", bitforce->proc_repr);
__bitforce_clear_buffer(bitforce);
}
mutex_unlock(mutexp);
}
void work_list_del(struct work **head, struct work *);
void bitforce_reinit(struct cgpu_info *bitforce)
{
struct cgpu_info * const dev = bitforce->device;
struct bitforce_data * const devdata = dev->device_data;
struct bitforce_data *data = bitforce->device_data;
struct thr_info *thr = bitforce->thr[0];
struct bitforce_proc_data *procdata = thr->cgpu_data;
const char *devpath = bitforce->device_path;
pthread_mutex_t *mutexp = &bitforce->device->device_mutex;
int retries = 0;
char pdevbuf[0x100];
if (!procdata->handles_board)
return;
mutex_lock(mutexp);
applog(LOG_WARNING, "%"PRIpreprv": Re-initialising", bitforce->proc_repr);
if (devdata->is_open)
{
bitforce_close(bitforce);
cgsleep_ms(5000);
}
bitforce_open(bitforce);
if (unlikely(!devdata->is_open)) {
mutex_unlock(mutexp);
applog(LOG_ERR, "%s: Failed to open %s", bitforce->dev_repr, devpath);
return;
}
__bitforce_clear_buffer(bitforce);
do {
bitforce_zgx(bitforce, pdevbuf, sizeof(pdevbuf));
if (unlikely(!pdevbuf[0])) {
mutex_unlock(mutexp);
bitforce_close(bitforce);
applog(LOG_ERR, "%s: Error reading/timeout (ZGX)", bitforce->dev_repr);
return;
}
if (retries++)
cgsleep_ms(10);
} while (strstr(pdevbuf, "BUSY") && (retries * 10 < BITFORCE_TIMEOUT_MS));
if (unlikely(!strstr(pdevbuf, "SHA256"))) {
mutex_unlock(mutexp);
bitforce_close(bitforce);
applog(LOG_ERR, "%s: Didn't recognise BitForce on %s returned: %s", bitforce->dev_repr, devpath, pdevbuf);
return;
}
free((void*)bitforce->name);
bitforce->name = bitforce_copy_name(pdevbuf);
bitforce->sleep_ms = data->sleep_ms_default;
if (bitforce->drv == &bitforce_queue_api)
{
struct work *work, *tmp;
timer_set_delay_from_now(&thr->tv_poll, 0);
notifier_wake(thr->notifier);
bitforce_cmd1b(bitforce, pdevbuf, sizeof(pdevbuf), "ZQX", 3);
DL_FOREACH_SAFE(thr->work_list, work, tmp)
work_list_del(&thr->work_list, work);
data->queued = 0;
data->ready_to_queue = 0;
data->already_have_results = false;
data->just_flushed = true;
thr->queue_full = false;
}
mutex_unlock(mutexp);
}
static void bitforce_flash_led(struct cgpu_info *bitforce)
{
struct cgpu_info * const dev = bitforce->device;
struct bitforce_data * const devdata = dev->device_data;
pthread_mutex_t *mutexp = &bitforce->device->device_mutex;
if (unlikely(!devdata->is_open))
return;
/* Do not try to flash the led if we're polling for a result to
* minimise the chance of interleaved results */
if (bitforce->polling)
return;
/* It is not critical flashing the led so don't get stuck if we
* can't grab the mutex here */
if (mutex_trylock(mutexp))
return;
char pdevbuf[0x100];
bitforce_cmd1b(bitforce, pdevbuf, sizeof(pdevbuf), "ZMX", 3);
/* Once we've tried - don't do it until told to again */
bitforce->flash_led = false;
/* However, this stops anything else getting a reply
* So best to delay any other access to the BFL */
cgsleep_ms(4000);
mutex_unlock(mutexp);
return; // nothing is returned by the BFL
}
static
float my_strtof(const char *nptr, char **endptr)
{
float f = strtof(nptr, endptr);
/* Cope with older software that breaks and reads nonsense
* values */
if (f > 100)
f = strtod(nptr, endptr);
return f;
}
static
void set_float_if_gt_zero(float *var, float value)
{
if (value > 0)
*var = value;
}
static bool bitforce_get_temp(struct cgpu_info *bitforce)
{
struct cgpu_info * const dev = bitforce->device;
struct bitforce_data * const devdata = dev->device_data;
struct bitforce_data *data = bitforce->device_data;
pthread_mutex_t *mutexp = &bitforce->device->device_mutex;
char pdevbuf[0x40];
char voltbuf[0x40];
char *s;
struct cgpu_info *chip_cgpu;
if (unlikely(!devdata->is_open))
return false;
/* Do not try to get the temperature if we're polling for a result to
* minimise the chance of interleaved results */
if (bitforce->polling)
return true;
// Flash instead of Temp - doing both can be too slow
if (bitforce->flash_led) {
bitforce_flash_led(bitforce);
return true;
}
/* It is not critical getting temperature so don't get stuck if we
* can't grab the mutex here */
if (mutex_trylock(mutexp))
return false;
if (data->style != BFS_FPGA)
{
if (unlikely(!data->probed))
{
bitforce_cmd1b(bitforce, voltbuf, sizeof(voltbuf), "Z9X", 3);
if (strncasecmp(voltbuf, "ERR", 3))
{
data->supports_fanspeed = true;
bitforce->set_device_funcs = bitforce_set_device_funcs;
}
data->probed = true;
}
bitforce_cmd1b(bitforce, voltbuf, sizeof(voltbuf), "ZTX", 3);
}
bitforce_cmd1b(bitforce, pdevbuf, sizeof(pdevbuf), "ZLX", 3);
mutex_unlock(mutexp);
if (data->style != BFS_FPGA && likely(voltbuf[0]))
{
// Process voltage info
// "NNNxxx,NNNxxx,NNNxxx"