bfgminer/driver-hashbuster.c

/*
 * Copyright 2013 Luke Dashjr
 * Copyright 2013 Vladimir Strinski
 *
 * 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 <stdint.h>

#include "deviceapi.h"
#include "driver-bitfury.h"
#include "fpgautils.h"
#include "libbitfury.h"
#include "logging.h"
#include "lowlevel.h"
#include "lowl-hid.h"
#include "miner.h"

#define HASHBUSTER_USB_PRODUCT "HashBuster"

#define HASHBUSTER_MAX_BYTES_PER_SPI_TRANSFER 62

BFG_REGISTER_DRIVER(hashbuster_drv)

static
bool hashbuster_io(hid_device * const h, void * const buf, const void * const cmd)
{
	const uint8_t cmdbyte = *((uint8_t *)cmd);
	char x[0x81];
	if (unlikely(opt_dev_protocol))
	{
		bin2hex(x, cmd, 0x40);
		applog(LOG_DEBUG, "%s(%p): SEND: %s", __func__, h, x);
	}
	const bool rv = likely(
		0x40 == hid_write(h, cmd, 0x40) &&
		0x40 == hid_read (h, buf, 0x40) &&
		((uint8_t *)buf)[0] == cmdbyte
	);
	if (unlikely(opt_dev_protocol))
	{
		bin2hex(x, buf, 0x40);
		applog(LOG_DEBUG, "%s(%p): RECV: %s", __func__, h, x);
	}
	return rv;
}

static
bool hashbuster_spi_config(hid_device * const h, const uint8_t mode, const uint8_t miso, const uint32_t freq)
{
	uint8_t buf[0x40] = {'\x01', '\x01', mode, miso};
	switch (freq)
	{
		case 100000:
			buf[4] = '\0';
			break;
		case 750000:
			buf[4] = '\x01';
			break;
		case 3000000:
			buf[4] = '\x02';
			break;
		case 12000000:
			buf[4] = '\x03';
			break;
		default:
			return false;
	}
	if (!hashbuster_io(h, buf, buf))
		return false;
	return (buf[1] == '\x0f');
}

static
bool hashbuster_spi_disable(hid_device * const h)
{
	uint8_t buf[0x40] = {'\x01'};
	if (!hashbuster_io(h, buf, buf))
		return false;
	return (buf[1] == '\x0f');
}

static
bool hashbuster_spi_reset(hid_device * const h, uint8_t chips)
{
	uint8_t buf[0x40] = {'\x02', chips};
	if (!hashbuster_io(h, buf, buf))
		return false;
	return (buf[1] == '\xff');
}

static
bool hashbuster_spi_transfer(hid_device * const h, void * const buf, const void * const data, size_t datasz)
{
	if (datasz > HASHBUSTER_MAX_BYTES_PER_SPI_TRANSFER)
		return false;
	uint8_t cbuf[0x40] = {'\x03', datasz};
	memcpy(&cbuf[2], data, datasz);
	if (!hashbuster_io(h, cbuf, cbuf))
		return false;
	if (cbuf[1] != datasz)
		return false;
	memcpy(buf, &cbuf[2], datasz);
	return true;
}

static
bool hashbuster_spi_txrx(struct spi_port * const port)
{
	hid_device * const h = port->userp;
	const uint8_t *wrbuf = spi_gettxbuf(port);
	uint8_t *rdbuf = spi_getrxbuf(port);
	size_t bufsz = spi_getbufsz(port);
	
	hashbuster_spi_disable(h);
	hashbuster_spi_reset(h, 0x10);
	
	hashbuster_spi_config(h, port->mode, 0, port->speed);
	
	while (bufsz >= HASHBUSTER_MAX_BYTES_PER_SPI_TRANSFER)
	{
		if (!hashbuster_spi_transfer(h, rdbuf, wrbuf, HASHBUSTER_MAX_BYTES_PER_SPI_TRANSFER))
			return false;
		rdbuf += HASHBUSTER_MAX_BYTES_PER_SPI_TRANSFER;
		wrbuf += HASHBUSTER_MAX_BYTES_PER_SPI_TRANSFER;
		bufsz -= HASHBUSTER_MAX_BYTES_PER_SPI_TRANSFER;
	}
	
	if (bufsz > 0)
	{
		if (!hashbuster_spi_transfer(h, rdbuf, wrbuf, bufsz))
			return false;
	}
	
	return true;
}

static
bool hashbuster_foundlowl(struct lowlevel_device_info * const info, __maybe_unused void *userp)
{
	const char * const product = info->product;
	const char * const serial = info->serial;
	char * const path = info->path;
	hid_device *h;
	uint8_t buf[0x40] = {'\xfe'};
	
	if (info->lowl != &lowl_hid)
		applogr(false, LOG_WARNING, "%s: Matched \"%s\" serial \"%s\", but lowlevel driver is not hid!",
		       __func__, product, serial);
	
	if (info->vid != 0xFA04 || info->pid != 0x0011)
		applogr(false, LOG_WARNING, "%s: Wrong VID/PID", __func__);
	
	h = hid_open_path(path);
	if (!h)
		applogr(false, LOG_WARNING, "%s: Failed to open HID path %s",
		       __func__, path);
	
	if ((!hashbuster_io(h, buf, buf)) || buf[1] != 0x07)
		applogr(false, LOG_DEBUG, "%s: Identify sequence didn't match on %s",
		        __func__, path);
	
	struct spi_port spi = {
		.txrx = hashbuster_spi_txrx,
		.userp = h,
		.repr = hashbuster_drv.dname,
		.logprio = LOG_DEBUG,
		.speed = 100000,
		.mode = 0,
	};
	const int chip_n = libbitfury_detectChips1(&spi);
	
	hid_close(h);
	
	if (bfg_claim_hid(&hashbuster_drv, true, info->path))
		return false;
	
	struct cgpu_info *cgpu;
	cgpu = malloc(sizeof(*cgpu));
	*cgpu = (struct cgpu_info){
		.drv = &hashbuster_drv,
		.device_data = info,
		.threads = 1,
		.procs = chip_n,
		.device_path = strdup(info->path),
		.dev_manufacturer = strdup(info->manufacturer),
		.dev_product = strdup(product),
		.dev_serial = strdup(serial),
		.deven = DEV_ENABLED,
	};

	return add_cgpu(cgpu);
}

static bool hashbuster_detect_one(const char *serial)
{
	return lowlevel_detect_serial(hashbuster_foundlowl, serial);
}

static int hashbuster_detect_auto()
{
	return lowlevel_detect(hashbuster_foundlowl, HASHBUSTER_USB_PRODUCT);
}

static void hashbuster_detect()
{
	serial_detect_auto(&hashbuster_drv, hashbuster_detect_one, hashbuster_detect_auto);
}

static
bool hashbuster_init(struct thr_info * const thr)
{
	struct cgpu_info * const cgpu = thr->cgpu, *proc;
	struct bitfury_device *bitfury;
	struct spi_port *port;
	hid_device *h;
	
	h = hid_open_path(cgpu->device_path);
	lowlevel_devinfo_free(cgpu->device_data);
	
	if (!h)
		applogr(false, LOG_ERR, "%s: Failed to open hid device", cgpu->dev_repr);
	
	port = malloc(sizeof(*port));
	if (!port)
		applogr(false, LOG_ERR, "%s: Failed to allocate spi_port", cgpu->dev_repr);
	*port = (struct spi_port){
		.txrx = hashbuster_spi_txrx,
		.userp = h,
		.cgpu = cgpu,
		.repr = cgpu->dev_repr,
		.logprio = LOG_ERR,
		.speed = 100000,
		.mode = 0,
	};
	
	for (proc = cgpu; proc; proc = proc->next_proc)
	{
		bitfury = malloc(sizeof(*bitfury));
		
		if (!bitfury)
		{
			applog(LOG_ERR, "%"PRIpreprv": Failed to allocate bitfury_device",
			       cgpu->proc_repr);
			proc->status = LIFE_DEAD2;
			continue;
		}
		
		*bitfury = (struct bitfury_device){
			.spi = port,
		};
		proc->device_data = bitfury;
		bitfury_init_chip(proc);
		bitfury->osc6_bits = 53;
		bitfury_send_reinit(bitfury->spi, bitfury->slot, bitfury->fasync, bitfury->osc6_bits);
	}
	
	timer_set_now(&thr->tv_poll);
	cgpu->status = LIFE_INIT2;
	return true;
}

struct device_drv hashbuster_drv = {
	.dname = "hashbuster",
	.name = "HBR",
	.drv_detect = hashbuster_detect,
	
	.thread_init = hashbuster_init,
	
	.minerloop = minerloop_async,
	.job_prepare = bitfury_job_prepare,
	.job_start = bitfury_noop_job_start,
	.poll = bitfury_do_io,
	.job_process_results = bitfury_job_process_results,
	
	.get_api_extra_device_detail = bitfury_api_device_detail,
	.get_api_extra_device_status = bitfury_api_device_status,
	.set_device = bitfury_set_device,
	
#ifdef HAVE_CURSES
	.proc_wlogprint_status = bitfury_wlogprint_status,
	.proc_tui_wlogprint_choices = bitfury_tui_wlogprint_choices,
	.proc_tui_handle_choice = bitfury_tui_handle_choice,
#endif
};