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Conflicts: Makefile.am api.c cgminer.c configure.ac miner.h usbutils.c usbutils.hnfactor-troky
Con Kolivas
11 years ago
23 changed files with 1082 additions and 764 deletions
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/*
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* Copyright 2013 Con Kolivas |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the Free |
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* Software Foundation; either version 3 of the License, or (at your option) |
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* any later version. See COPYING for more details. |
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*/ |
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#include "config.h" |
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#include "miner.h" |
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#include "driver-bitfury.h" |
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#include "sha2.h" |
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/* Wait longer 1/3 longer than it would take for a full nonce range */ |
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#define BF1WAIT 1600 |
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static void bitfury_empty_buffer(struct cgpu_info *bitfury) |
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{ |
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char buf[512]; |
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int amount; |
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do { |
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usb_read_once(bitfury, buf, 512, &amount, C_BF1_FLUSH); |
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} while (amount); |
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} |
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static void bitfury_open(struct cgpu_info *bitfury) |
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{ |
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uint32_t buf[2]; |
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bitfury_empty_buffer(bitfury); |
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/* Magic sequence to reset device only really needed for windows but
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* harmless on linux. */ |
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buf[0] = 0x80250000; |
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buf[1] = 0x00000800; |
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usb_transfer(bitfury, 0, 9, 1, 0, C_BF1_RESET); |
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usb_transfer(bitfury, 0x21, 0x22, 0, 0, C_BF1_OPEN); |
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usb_transfer_data(bitfury, 0x21, 0x20, 0x0000, 0, buf, 7, C_BF1_INIT); |
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} |
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static void bitfury_close(struct cgpu_info *bitfury) |
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{ |
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bitfury_empty_buffer(bitfury); |
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} |
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static void bitfury_identify(struct cgpu_info *bitfury) |
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{ |
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int amount; |
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usb_write(bitfury, "L", 1, &amount, C_BF1_IDENTIFY); |
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} |
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static bool bitfury_getinfo(struct cgpu_info *bitfury, struct bitfury_info *info) |
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{ |
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int amount, err; |
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char buf[16]; |
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err = usb_write(bitfury, "I", 1, &amount, C_BF1_REQINFO); |
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if (err) { |
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applog(LOG_INFO, "%s %d: Failed to write REQINFO", |
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bitfury->drv->name, bitfury->device_id); |
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return false; |
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} |
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err = usb_read(bitfury, buf, 14, &amount, C_BF1_GETINFO); |
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if (err) { |
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applog(LOG_INFO, "%s %d: Failed to read GETINFO", |
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bitfury->drv->name, bitfury->device_id); |
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return false; |
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} |
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if (amount != 14) { |
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applog(LOG_INFO, "%s %d: Getinfo received %d bytes instead of 14", |
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bitfury->drv->name, bitfury->device_id, amount); |
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return false; |
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} |
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info->version = buf[1]; |
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memcpy(&info->product, buf + 2, 8); |
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memcpy(&info->serial, buf + 10, 4); |
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applog(LOG_INFO, "%s %d: Getinfo returned version %d, product %s serial %08x", bitfury->drv->name, |
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bitfury->device_id, info->version, info->product, info->serial); |
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bitfury_empty_buffer(bitfury); |
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return true; |
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} |
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static bool bitfury_reset(struct cgpu_info *bitfury) |
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{ |
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int amount, err; |
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char buf[16]; |
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err = usb_write(bitfury, "R", 1, &amount, C_BF1_REQRESET); |
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if (err) { |
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applog(LOG_INFO, "%s %d: Failed to write REQRESET", |
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bitfury->drv->name, bitfury->device_id); |
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return false; |
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} |
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err = usb_read_timeout(bitfury, buf, 7, &amount, BF1WAIT, C_BF1_GETRESET); |
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if (err) { |
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applog(LOG_INFO, "%s %d: Failed to read GETRESET", |
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bitfury->drv->name, bitfury->device_id); |
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return false; |
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} |
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if (amount != 7) { |
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applog(LOG_INFO, "%s %d: Getreset received %d bytes instead of 7", |
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bitfury->drv->name, bitfury->device_id, amount); |
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return false; |
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} |
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applog(LOG_DEBUG, "%s %d: Getreset returned %s", bitfury->drv->name, |
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bitfury->device_id, buf); |
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bitfury_empty_buffer(bitfury); |
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return true; |
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} |
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static bool bitfury_detect_one(struct libusb_device *dev, struct usb_find_devices *found) |
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{ |
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struct cgpu_info *bitfury; |
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struct bitfury_info *info; |
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bitfury = usb_alloc_cgpu(&bitfury_drv, 1); |
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if (!usb_init(bitfury, dev, found)) |
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goto out; |
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applog(LOG_INFO, "%s %d: Found at %s", bitfury->drv->name, |
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bitfury->device_id, bitfury->device_path); |
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info = calloc(sizeof(struct bitfury_info), 1); |
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if (!info) |
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quit(1, "Failed to calloc info in bitfury_detect_one"); |
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bitfury->device_data = info; |
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usb_buffer_enable(bitfury); |
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bitfury_open(bitfury); |
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/* Send getinfo request */ |
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if (!bitfury_getinfo(bitfury, info)) |
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goto out_close; |
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/* Send reset request */ |
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if (!bitfury_reset(bitfury)) |
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goto out_close; |
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bitfury_identify(bitfury); |
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bitfury_empty_buffer(bitfury); |
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if (!add_cgpu(bitfury)) |
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goto out_close; |
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update_usb_stats(bitfury); |
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applog(LOG_INFO, "%s %d: Found at %s", |
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bitfury->drv->name, bitfury->device_id, bitfury->device_path); |
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return true; |
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out_close: |
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bitfury_close(bitfury); |
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usb_uninit(bitfury); |
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out: |
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bitfury = usb_free_cgpu(bitfury); |
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return false; |
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} |
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static void bitfury_detect(bool __maybe_unused hotplug) |
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{ |
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usb_detect(&bitfury_drv, bitfury_detect_one); |
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} |
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static uint32_t decnonce(uint32_t in) |
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{ |
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uint32_t out; |
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/* First part load */ |
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out = (in & 0xFF) << 24; in >>= 8; |
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/* Byte reversal */ |
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in = (((in & 0xaaaaaaaa) >> 1) | ((in & 0x55555555) << 1)); |
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in = (((in & 0xcccccccc) >> 2) | ((in & 0x33333333) << 2)); |
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in = (((in & 0xf0f0f0f0) >> 4) | ((in & 0x0f0f0f0f) << 4)); |
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out |= (in >> 2)&0x3FFFFF; |
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/* Extraction */ |
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if (in & 1) out |= (1 << 23); |
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if (in & 2) out |= (1 << 22); |
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out -= 0x800004; |
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return out; |
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} |
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#define BT_OFFSETS 3 |
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const uint32_t bf_offsets[] = {-0x800000, 0, -0x400000}; |
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static bool bitfury_checkresults(struct thr_info *thr, struct work *work, uint32_t nonce) |
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{ |
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int i; |
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for (i = 0; i < BT_OFFSETS; i++) { |
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if (test_nonce(work, nonce + bf_offsets[i])) { |
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submit_tested_work(thr, work); |
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return true; |
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} |
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} |
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return false; |
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} |
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static int64_t bitfury_scanhash(struct thr_info *thr, struct work *work, |
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int64_t __maybe_unused max_nonce) |
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{ |
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struct cgpu_info *bitfury = thr->cgpu; |
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struct bitfury_info *info = bitfury->device_data; |
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struct timeval tv_now; |
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int amount, i; |
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char buf[45]; |
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int ms_diff; |
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buf[0] = 'W'; |
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memcpy(buf + 1, work->midstate, 32); |
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memcpy(buf + 33, work->data + 64, 12); |
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/* New results may spill out from the latest work, making us drop out
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* too early so read whatever we get for the first half nonce and then |
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* look for the results to prev work. */ |
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cgtime(&tv_now); |
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ms_diff = 600 - ms_tdiff(&tv_now, &info->tv_start); |
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if (ms_diff > 0) { |
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usb_read_timeout(bitfury, info->buf, 512, &amount, ms_diff, C_BF1_GETRES); |
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info->tot += amount; |
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} |
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if (unlikely(thr->work_restart)) |
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goto cascade; |
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/* Now look for the bulk of the previous work results, they will come
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* in a batch following the first data. */ |
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cgtime(&tv_now); |
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ms_diff = BF1WAIT - ms_tdiff(&tv_now, &info->tv_start); |
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if (unlikely(ms_diff < 10)) |
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ms_diff = 10; |
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usb_read_once_timeout(bitfury, info->buf + info->tot, 7, &amount, ms_diff, C_BF1_GETRES); |
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info->tot += amount; |
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while (amount) { |
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usb_read_once_timeout(bitfury, info->buf + info->tot, 512, &amount, 10, C_BF1_GETRES); |
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info->tot += amount; |
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}; |
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if (unlikely(thr->work_restart)) |
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goto cascade; |
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/* Send work */ |
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usb_write(bitfury, buf, 45, &amount, C_BF1_REQWORK); |
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cgtime(&info->tv_start); |
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/* Get response acknowledging work */ |
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usb_read(bitfury, buf, 7, &amount, C_BF1_GETWORK); |
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/* Only happens on startup */ |
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if (unlikely(!info->prevwork[BF1ARRAY_SIZE])) |
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goto cascade; |
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/* Search for what work the nonce matches in order of likelihood. Last
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* entry is end of result marker. */ |
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for (i = 0; i < info->tot - 7; i += 7) { |
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uint32_t nonce; |
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int j; |
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/* Ignore state & switched data in results for now. */ |
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memcpy(&nonce, info->buf + i + 3, 4); |
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nonce = decnonce(nonce); |
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for (j = 0; j < BF1ARRAY_SIZE; j++) { |
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if (bitfury_checkresults(thr, info->prevwork[j], nonce)) { |
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info->nonces++; |
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break; |
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} |
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} |
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} |
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info->tot = 0; |
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free_work(info->prevwork[BF1ARRAY_SIZE]); |
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cascade: |
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for (i = BF1ARRAY_SIZE; i > 0; i--) |
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info->prevwork[i] = info->prevwork[i - 1]; |
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info->prevwork[0] = copy_work(work); |
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work->blk.nonce = 0xffffffff; |
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if (info->nonces) { |
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info->nonces--; |
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return (int64_t)0xffffffff; |
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} |
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return 0; |
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} |
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static struct api_data *bitfury_api_stats(struct cgpu_info *cgpu) |
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{ |
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struct bitfury_info *info = cgpu->device_data; |
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struct api_data *root = NULL; |
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char serial[16]; |
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int version; |
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version = info->version; |
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root = api_add_int(root, "Version", &version, true); |
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root = api_add_string(root, "Product", info->product, false); |
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sprintf(serial, "%08x", info->serial); |
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root = api_add_string(root, "Serial", serial, true); |
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return root; |
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} |
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static void bitfury_init(struct cgpu_info *bitfury) |
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{ |
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bitfury_close(bitfury); |
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bitfury_open(bitfury); |
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bitfury_reset(bitfury); |
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} |
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static void bitfury_shutdown(struct thr_info *thr) |
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{ |
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struct cgpu_info *bitfury = thr->cgpu; |
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bitfury_close(bitfury); |
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} |
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/* Currently hardcoded to BF1 devices */ |
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struct device_drv bitfury_drv = { |
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.drv_id = DRIVER_bitfury, |
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.dname = "bitfury", |
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.name = "BF1", |
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.drv_detect = bitfury_detect, |
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.scanhash = bitfury_scanhash, |
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.get_api_stats = bitfury_api_stats, |
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.reinit_device = bitfury_init, |
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.thread_shutdown = bitfury_shutdown, |
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.identify_device = bitfury_identify |
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}; |
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@ -0,0 +1,30 @@
@@ -0,0 +1,30 @@
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/*
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* Copyright 2013 Con Kolivas |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the Free |
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* Software Foundation; either version 3 of the License, or (at your option) |
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* any later version. See COPYING for more details. |
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*/ |
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#ifndef BITFURY_H |
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#define BITFURY_H |
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#include "miner.h" |
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#include "usbutils.h" |
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#define BF1ARRAY_SIZE 2 |
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struct bitfury_info { |
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struct cgpu_info *base_cgpu; |
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uint8_t version; |
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char product[8]; |
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uint32_t serial; |
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struct work *prevwork[BF1ARRAY_SIZE + 1]; |
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char buf[512]; |
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int tot; |
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int nonces; |
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struct timeval tv_start; |
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}; |
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#endif /* BITFURY_H */ |
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