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driver-bitfury.c
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driver-bitfury.c
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/*
* Copyright 2013-2014 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 "miner.h"
#include "driver-bitfury.h"
#include "sha2.h"
#include "mcp2210.h"
#include "libbitfury.h"
int opt_bxf_temp_target = BXF_TEMP_TARGET / 10;
int opt_nfu_bits = 50;
int opt_bxm_bits = 54;
int opt_bxf_bits = 54;
int opt_bxf_debug;
int opt_osm_led_mode = 4;
/* Wait longer 1/3 longer than it would take for a full nonce range */
#define BF1WAIT 1600
#define BF1MSGSIZE 7
#define BF1INFOSIZE 14
#define TWELVE_MHZ 12000000
//Low port pins
#define SK 1
#define DO 2
#define DI 4
#define CS 8
#define GPIO0 16
#define GPIO1 32
#define GPIO2 64
#define GPIO3 128
//GPIO pins
#define GPIOL0 0
#define GPIOL1 1
#define GPIOL2 2
#define GPIOL3 3
#define GPIOH 4
#define GPIOH1 5
#define GPIOH2 6
#define GPIOH3 7
#define GPIOH4 8
#define GPIOH5 9
#define GPIOH6 10
#define GPIOH7 11
#define DEFAULT_DIR (SK | DO | CS | GPIO0 | GPIO1 | GPIO2 | GPIO3) /* Setup default input or output state per FTDI for SPI */
#define DEFAULT_STATE (CS) /* CS idles high, CLK idles LOW for SPI0 */
//MPSSE commands from FTDI AN_108
#define INVALID_COMMAND 0xAB
#define ENABLE_ADAPTIVE_CLOCK 0x96
#define DISABLE_ADAPTIVE_CLOCK 0x97
#define ENABLE_3_PHASE_CLOCK 0x8C
#define DISABLE_3_PHASE_CLOCK 0x8D
#define TCK_X5 0x8A
#define TCK_D5 0x8B
#define CLOCK_N_CYCLES 0x8E
#define CLOCK_N8_CYCLES 0x8F
#define PULSE_CLOCK_IO_HIGH 0x94
#define PULSE_CLOCK_IO_LOW 0x95
#define CLOCK_N8_CYCLES_IO_HIGH 0x9C
#define CLOCK_N8_CYCLES_IO_LOW 0x9D
#define TRISTATE_IO 0x9E
#define TCK_DIVISOR 0x86
#define LOOPBACK_END 0x85
#define SET_OUT_ADBUS 0x80
#define SET_OUT_ACBUS 0x82
#define WRITE_BYTES_SPI0 0x11
#define READ_WRITE_BYTES_SPI0 0x31
static void bf1_empty_buffer(struct cgpu_info *bitfury)
{
char buf[512];
int amount;
do {
usb_read_once(bitfury, buf, 512, &amount, C_BF1_FLUSH);
} while (amount);
}
static bool bf1_open(struct cgpu_info *bitfury)
{
uint32_t buf[2];
int err;
bf1_empty_buffer(bitfury);
/* Magic sequence to reset device only really needed for windows but
* harmless on linux. */
buf[0] = 0x80250000;
buf[1] = 0x00000800;
err = usb_transfer(bitfury, 0, 9, 1, 0, C_ATMEL_RESET);
if (!err)
err = usb_transfer(bitfury, 0x21, 0x22, 0, 0, C_ATMEL_OPEN);
if (!err) {
err = usb_transfer_data(bitfury, 0x21, 0x20, 0x0000, 0, buf,
BF1MSGSIZE, C_ATMEL_INIT);
}
if (err < 0) {
applog(LOG_INFO, "%s %d: Failed to open with error %s", bitfury->drv->name,
bitfury->device_id, libusb_error_name(err));
}
return (err == BF1MSGSIZE);
}
static void bf1_close(struct cgpu_info *bitfury)
{
bf1_empty_buffer(bitfury);
}
static void bf1_identify(struct cgpu_info *bitfury)
{
int amount;
usb_write(bitfury, "L", 1, &amount, C_BF1_IDENTIFY);
}
static void bitfury_identify(struct cgpu_info *bitfury)
{
struct bitfury_info *info = bitfury->device_data;
switch(info->ident) {
case IDENT_BF1:
bf1_identify(bitfury);
break;
case IDENT_BXF:
case IDENT_OSM:
default:
break;
}
}
static bool bf1_getinfo(struct cgpu_info *bitfury, struct bitfury_info *info)
{
int amount, err;
char buf[16];
err = usb_write(bitfury, "I", 1, &amount, C_BF1_REQINFO);
if (err) {
applog(LOG_INFO, "%s %d: Failed to write REQINFO",
bitfury->drv->name, bitfury->device_id);
return false;
}
err = usb_read(bitfury, buf, BF1INFOSIZE, &amount, C_BF1_GETINFO);
if (err) {
applog(LOG_INFO, "%s %d: Failed to read GETINFO",
bitfury->drv->name, bitfury->device_id);
return false;
}
if (amount != BF1INFOSIZE) {
applog(LOG_INFO, "%s %d: Getinfo received %d bytes instead of %d",
bitfury->drv->name, bitfury->device_id, amount, BF1INFOSIZE);
return false;
}
info->version = buf[1];
cg_memcpy(&info->product, buf + 2, 8);
cg_memcpy(&info->serial, buf + 10, 4);
bitfury->unique_id = bin2hex((unsigned char *)buf + 10, 4);
applog(LOG_INFO, "%s %d: Getinfo returned version %d, product %s serial %s", bitfury->drv->name,
bitfury->device_id, info->version, info->product, bitfury->unique_id);
bf1_empty_buffer(bitfury);
return true;
}
static bool bf1_reset(struct cgpu_info *bitfury)
{
int amount, err;
char buf[16];
err = usb_write(bitfury, "R", 1, &amount, C_BF1_REQRESET);
if (err) {
applog(LOG_INFO, "%s %d: Failed to write REQRESET",
bitfury->drv->name, bitfury->device_id);
return false;
}
err = usb_read_timeout(bitfury, buf, BF1MSGSIZE, &amount, BF1WAIT,
C_BF1_GETRESET);
if (err) {
applog(LOG_INFO, "%s %d: Failed to read GETRESET",
bitfury->drv->name, bitfury->device_id);
return false;
}
if (amount != BF1MSGSIZE) {
applog(LOG_INFO, "%s %d: Getreset received %d bytes instead of %d",
bitfury->drv->name, bitfury->device_id, amount, BF1MSGSIZE);
return false;
}
applog(LOG_DEBUG, "%s %d: Getreset returned %s", bitfury->drv->name,
bitfury->device_id, buf);
bf1_empty_buffer(bitfury);
return true;
}
static bool bxf_send_msg(struct cgpu_info *bitfury, char *buf, enum usb_cmds cmd)
{
int err, amount, len;
if (unlikely(bitfury->usbinfo.nodev))
return false;
if (opt_bxf_debug) {
char *strbuf = str_text(buf);
applog(LOG_ERR, "%s %d: >BXF [%s]", bitfury->drv->name, bitfury->device_id, strbuf);
free(strbuf);
}
len = strlen(buf);
applog(LOG_DEBUG, "%s %d: Sending %s", bitfury->drv->name, bitfury->device_id, buf);
err = usb_write(bitfury, buf, len, &amount, cmd);
if (err || amount != len) {
applog(LOG_WARNING, "%s %d: Error %d sending %s sent %d of %d", bitfury->drv->name,
bitfury->device_id, err, usb_cmdname(cmd), amount, len);
return false;
}
return true;
}
static bool bxf_send_debugmode(struct cgpu_info *bitfury)
{
char buf[16];
sprintf(buf, "debug-mode %d\n", opt_bxf_debug);
return bxf_send_msg(bitfury, buf, C_BXF_DEBUGMODE);
}
static bool bxf_send_ledmode(struct cgpu_info *bitfury)
{
char buf[16];
sprintf(buf, "led-mode %d\n", opt_osm_led_mode);
return bxf_send_msg(bitfury, buf, C_BXF_LEDMODE);
}
/* Returns the amount received only if we receive a full message, otherwise
* it returns the err value. */
static int bxf_recv_msg(struct cgpu_info *bitfury, char *buf)
{
int err, amount;
err = usb_read_nl(bitfury, buf, 512, &amount, C_BXF_READ);
if (amount)
applog(LOG_DEBUG, "%s %d: Received %s", bitfury->drv->name, bitfury->device_id, buf);
if (!err)
return amount;
return err;
}
/* Keep reading till the first timeout or error */
static void bxf_clear_buffer(struct cgpu_info *bitfury)
{
int err, retries = 0;
char buf[512];
do {
err = bxf_recv_msg(bitfury, buf);
usb_buffer_clear(bitfury);
if (err < 0)
break;
} while (retries++ < 10);
}
static bool bxf_send_flush(struct cgpu_info *bitfury)
{
char buf[8];
sprintf(buf, "flush\n");
return bxf_send_msg(bitfury, buf, C_BXF_FLUSH);
}
static bool bxf_detect_one(struct cgpu_info *bitfury, struct bitfury_info *info)
{
int err, retries = 0;
char buf[512];
if (!bxf_send_flush(bitfury))
return false;
bxf_clear_buffer(bitfury);
sprintf(buf, "version\n");
if (!bxf_send_msg(bitfury, buf, C_BXF_VERSION))
return false;
do {
err = bxf_recv_msg(bitfury, buf);
if (err < 0 && err != LIBUSB_ERROR_TIMEOUT)
return false;
if (err > 0 && !strncmp(buf, "version", 7)) {
sscanf(&buf[8], "%d.%d rev %d chips %d", &info->ver_major,
&info->ver_minor, &info->hw_rev, &info->chips);
applog(LOG_INFO, "%s %d: Version %d.%d rev %d chips %d",
bitfury->drv->name, bitfury->device_id, info->ver_major,
info->ver_minor, info->hw_rev, info->chips);
break;
}
/* Keep parsing if the buffer is full without counting it as
* a retry. */
if (usb_buffer_size(bitfury))
continue;
} while (retries++ < 10);
if (!add_cgpu(bitfury))
quit(1, "Failed to add_cgpu in bxf_detect_one");
update_usb_stats(bitfury);
applog(LOG_INFO, "%s %d: Successfully initialised %s",
bitfury->drv->name, bitfury->device_id, bitfury->device_path);
/* Sanity check and recognise variations */
if (info->chips <= 2 || info->chips > 999)
info->chips = 2;
else if (info->chips <= 6 && info->ident == IDENT_BXF)
bitfury->drv->name = "HXF";
else if (info->chips > 6 && info->ident == IDENT_BXF)
bitfury->drv->name = "MXF";
info->filtered_hw = cgcalloc(sizeof(int), info->chips);
info->job = cgcalloc(sizeof(int), info->chips);
info->submits = cgcalloc(sizeof(int), info->chips);
info->total_nonces = 1;
info->temp_target = opt_bxf_temp_target * 10;
/* This unsets it to make sure it gets set on the first pass */
info->maxroll = -1;
return true;
}
static bool bf1_detect_one(struct cgpu_info *bitfury, struct bitfury_info *info)
{
if (!bf1_open(bitfury))
goto out_close;
/* Send getinfo request */
if (!bf1_getinfo(bitfury, info))
goto out_close;
/* Send reset request */
if (!bf1_reset(bitfury))
goto out_close;
bf1_identify(bitfury);
bf1_empty_buffer(bitfury);
if (!add_cgpu(bitfury))
quit(1, "Failed to add_cgpu in bf1_detect_one");
update_usb_stats(bitfury);
applog(LOG_INFO, "%s %d: Successfully initialised %s",
bitfury->drv->name, bitfury->device_id, bitfury->device_path);
/* This does not artificially raise hashrate, it simply allows the
* hashrate to adapt quickly on starting. */
info->total_nonces = 1;
return true;
out_close:
bf1_close(bitfury);
return false;
}
static void nfu_close(struct cgpu_info *bitfury)
{
struct bitfury_info *info = bitfury->device_data;
struct mcp_settings *mcp = &info->mcp;
int i;
mcp2210_spi_cancel(bitfury);
/* Set all pins to input mode, ignoring return code */
for (i = 0; i < 9; i++) {
mcp->direction.pin[i] = MCP2210_GPIO_INPUT;
mcp->value.pin[i] = MCP2210_GPIO_PIN_LOW;
}
mcp2210_set_gpio_settings(bitfury, mcp);
}
static bool nfu_reinit(struct cgpu_info *bitfury, struct bitfury_info *info)
{
bool ret = true;
int i;
for (i = 0; i < info->chips; i++) {
spi_clear_buf(info);
spi_add_break(info);
spi_add_fasync(info, i);
spi_set_freq(info);
spi_send_conf(info);
spi_send_init(info);
spi_reset(bitfury, info);
ret = info->spi_txrx(bitfury, info);
if (!ret)
break;
}
return ret;
}
static bool nfu_set_spi_settings(struct cgpu_info *bitfury, struct bitfury_info *info)
{
struct mcp_settings *mcp = &info->mcp;
return mcp2210_set_spi_transfer_settings(bitfury, mcp->bitrate, mcp->icsv,
mcp->acsv, mcp->cstdd, mcp->ldbtcsd, mcp->sdbd, mcp->bpst, mcp->spimode);
}
static void nfu_alloc_arrays(struct bitfury_info *info)
{
info->payload = cgcalloc(sizeof(struct bitfury_payload), info->chips);
info->oldbuf = cgcalloc(sizeof(unsigned int) * 17, info->chips);
info->job_switched = cgcalloc(sizeof(bool), info->chips);
info->second_run = cgcalloc(sizeof(bool), info->chips);
info->work = cgcalloc(sizeof(struct work *), info->chips);
info->owork = cgcalloc(sizeof(struct work *), info->chips);
info->submits = cgcalloc(sizeof(int *), info->chips);
}
static bool nfu_detect_one(struct cgpu_info *bitfury, struct bitfury_info *info)
{
struct mcp_settings *mcp = &info->mcp;
char buf[MCP2210_BUFFER_LENGTH];
unsigned int length;
bool ret = false;
int i, val;
/* Identify number of chips, and use it in device name if it can fit
* into 3 chars, otherwise use generic NFU name. */
val = sscanf(bitfury->usbdev->prod_string, "NanoFury NF%u ", &info->chips);
if (val < 1)
info->chips = 1;
else if (info->chips < 10) {
sprintf(info->product, "NF%u", info->chips);
bitfury->drv->name = info->product;
}
nfu_alloc_arrays(info);
info->spi_txrx = &mcp_spi_txrx;
mcp2210_get_gpio_settings(bitfury, mcp);
for (i = 0; i < 9; i++) {
/* Set all pins to GPIO mode */
mcp->designation.pin[i] = MCP2210_PIN_GPIO;
/* Set all pins to input mode */
mcp->direction.pin[i] = MCP2210_GPIO_INPUT;
mcp->value.pin[i] = MCP2210_GPIO_PIN_LOW;
}
/* Set LED and PWR pins to output and high */
mcp->direction.pin[NFU_PIN_LED] = mcp->direction.pin[NFU_PIN_PWR_EN] = MCP2210_GPIO_OUTPUT;
mcp->value.pin[NFU_PIN_LED] = mcp->value.pin[NFU_PIN_PWR_EN] = MCP2210_GPIO_PIN_HIGH;
mcp->direction.pin[NFU_PIN_PWR_EN0] = MCP2210_GPIO_OUTPUT;
mcp->value.pin[NFU_PIN_PWR_EN0] = MCP2210_GPIO_PIN_LOW;
mcp->direction.pin[4] = MCP2210_GPIO_OUTPUT;
mcp->designation.pin[4] = MCP2210_PIN_CS;
if (!mcp2210_set_gpio_settings(bitfury, mcp))
goto out;
if (opt_debug) {
struct gpio_pin gp;
mcp2210_get_gpio_pindirs(bitfury, &gp);
for (i = 0; i < 9; i++) {
applog(LOG_DEBUG, "%s %d: Pin dir %d %d", bitfury->drv->name,
bitfury->device_id, i, gp.pin[i]);
}
mcp2210_get_gpio_pinvals(bitfury, &gp);
for (i = 0; i < 9; i++) {
applog(LOG_DEBUG, "%s %d: Pin val %d %d", bitfury->drv->name,
bitfury->device_id, i, gp.pin[i]);
}
mcp2210_get_gpio_pindes(bitfury, &gp);
for (i = 0; i < 9; i++) {
applog(LOG_DEBUG, "%s %d: Pin des %d %d", bitfury->drv->name,
bitfury->device_id, i, gp.pin[i]);
}
}
/* Cancel any transfers in progress */
if (!mcp2210_spi_cancel(bitfury))
goto out;
if (!mcp2210_get_spi_transfer_settings(bitfury, &mcp->bitrate, &mcp->icsv,
&mcp->acsv, &mcp->cstdd, &mcp->ldbtcsd, &mcp->sdbd, &mcp->bpst, &mcp->spimode))
goto out;
mcp->bitrate = 200000; // default to 200kHz
mcp->icsv = 0xffff;
mcp->acsv = 0xffef;
mcp->cstdd = mcp->ldbtcsd = mcp->sdbd = mcp->spimode = 0;
mcp->bpst = 1;
if (!nfu_set_spi_settings(bitfury, info))
goto out;
buf[0] = 0;
length = 1;
if (!mcp2210_spi_transfer(bitfury, mcp, buf, &length))
goto out;
/* after this command SCK_OVRRIDE should read the same as current SCK
* value (which for mode 0 should be 0) */
if (!mcp2210_get_gpio_pinval(bitfury, NFU_PIN_SCK_OVR, &val))
goto out;
if (val != MCP2210_GPIO_PIN_LOW)
goto out;
/* switch SCK to polarity (default SCK=1 in mode 2) */
mcp->spimode = 2;
if (!nfu_set_spi_settings(bitfury, info))
goto out;
buf[0] = 0;
length = 1;
if (!mcp2210_spi_transfer(bitfury, mcp, buf, &length))
goto out;
/* after this command SCK_OVRRIDE should read the same as current SCK
* value (which for mode 2 should be 1) */
if (!mcp2210_get_gpio_pinval(bitfury, NFU_PIN_SCK_OVR, &val))
goto out;
if (val != MCP2210_GPIO_PIN_HIGH)
goto out;
/* switch SCK to polarity (default SCK=0 in mode 0) */
mcp->spimode = 0;
if (!nfu_set_spi_settings(bitfury, info))
goto out;
buf[0] = 0;
length = 1;
if (!mcp2210_spi_transfer(bitfury, mcp, buf, &length))
goto out;
if (!mcp2210_get_gpio_pinval(bitfury, NFU_PIN_SCK_OVR, &val))
goto out;
if (val != MCP2210_GPIO_PIN_LOW)
goto out;
info->osc6_bits = opt_nfu_bits;
if (!nfu_reinit(bitfury, info))
goto out;
ret = true;
if (!add_cgpu(bitfury))
quit(1, "Failed to add_cgpu in nfu_detect_one");
update_usb_stats(bitfury);
applog(LOG_INFO, "%s %d: Successfully initialised %s",
bitfury->drv->name, bitfury->device_id, bitfury->device_path);
spi_clear_buf(info);
info->total_nonces = info->chips;
out:
if (!ret)
nfu_close(bitfury);
return ret;
}
static bool bxm_purge_buffers(struct cgpu_info *bitfury)
{
int err;
err = usb_transfer(bitfury, FTDI_TYPE_OUT, SIO_RESET_REQUEST, SIO_RESET_PURGE_RX, 1, C_BXM_PURGERX);
if (err)
return false;
err = usb_transfer(bitfury, FTDI_TYPE_OUT, SIO_RESET_REQUEST, SIO_RESET_PURGE_TX, 1, C_BXM_PURGETX);
if (err)
return false;
return true;
}
/* Calculate required divisor for desired frequency see FTDI AN_108 page 19*/
static uint16_t calc_divisor(uint32_t system_clock, uint32_t freq)
{
uint16_t divisor = system_clock / freq;
divisor /= 2;
divisor -= 1;
return divisor;
}
static void bxm_shutdown(struct cgpu_info *bitfury, struct bitfury_info *info)
{
int chip_n;
for (chip_n = 0; chip_n < 2; chip_n++) {
spi_clear_buf(info);
spi_add_break(info);
spi_add_fasync(info, chip_n);
spi_config_reg(info, 4, 0);
info->spi_txrx(bitfury, info);
}
}
static void bxm_close(struct cgpu_info *bitfury, struct bitfury_info *info)
{
unsigned char bitmask = 0;
unsigned char mode = BITMODE_RESET;
unsigned short usb_val = bitmask;
bxm_shutdown(bitfury, info);
//Need to do BITMODE_RESET before usb close per FTDI
usb_val |= (mode << 8);
usb_transfer(bitfury, FTDI_TYPE_OUT, SIO_SET_BITMODE_REQUEST, usb_val, 1, C_BXM_SETBITMODE);
}
static bool bxm_open(struct cgpu_info *bitfury)
{
unsigned char mode = BITMODE_RESET;
unsigned char bitmask = 0;
unsigned short usb_val = bitmask;
uint32_t system_clock = TWELVE_MHZ;
uint32_t freq = 200000;
uint16_t divisor = calc_divisor(system_clock,freq);
int amount, err;
char buf[4];
/* Enable the transaction translator emulator for these devices
* otherwise we may write to them too quickly. */
bitfury->usbdev->tt = true;
err = usb_transfer(bitfury, FTDI_TYPE_OUT, SIO_RESET_REQUEST, SIO_RESET_SIO, 1, C_BXM_SRESET);
if (err)
return false;
err = usb_transfer(bitfury, FTDI_TYPE_OUT, SIO_SET_LATENCY_TIMER_REQUEST, BXM_LATENCY_MS, 1, C_BXM_SETLATENCY);
if (err)
return false;
err = usb_transfer(bitfury, FTDI_TYPE_OUT, SIO_SET_EVENT_CHAR_REQUEST, 0x00, 1, C_BXM_SECR);
if (err)
return false;
//Do a BITMODE_RESET
usb_val |= (mode << 8);
err = usb_transfer(bitfury, FTDI_TYPE_OUT, SIO_SET_BITMODE_REQUEST, usb_val, 1, C_BXM_SETBITMODE);
if (err)
return false;
//Now set to MPSSE mode
bitmask = 0;
mode = BITMODE_MPSSE;
usb_val = bitmask;
usb_val |= (mode << 8);
err = usb_transfer(bitfury, FTDI_TYPE_OUT, SIO_SET_BITMODE_REQUEST, usb_val, 1, C_BXM_SETBITMODE);
if (err)
return false;
//Now set the clock divisor
//First send just the 0x8B command to set the system clock to 12MHz
memset(buf, 0, 4);
buf[0] = TCK_D5;
err = usb_write(bitfury, buf, 1, &amount, C_BXM_CLOCK);
if (err || amount != 1)
return false;
buf[0] = TCK_DIVISOR;
buf[1] = (divisor & 0xFF);
buf[2] = ((divisor >> 8) & 0xFF);
err = usb_write(bitfury, buf, 3, &amount, C_BXM_CLOCKDIV);
if (err || amount != 3)
return false;
//Disable internal loopback
buf[0] = LOOPBACK_END;
err = usb_write(bitfury, buf, 1, &amount, C_BXM_LOOP);
if (err || amount != 1)
return false;
//Now set direction and idle (initial) states for the pins
buf[0] = SET_OUT_ADBUS;
buf[1] = DEFAULT_STATE; //Bitmask for LOW_PORT
buf[2] = DEFAULT_DIR;
err = usb_write(bitfury, buf, 3, &amount, C_BXM_ADBUS);
if (err || amount != 3)
return false;
//Set the pin states for the HIGH_BITS port as all outputs, all low
buf[0] = SET_OUT_ACBUS;
buf[1] = 0x00; //Bitmask for HIGH_PORT
buf[2] = 0xFF;
err = usb_write(bitfury, buf, 3, &amount, C_BXM_ACBUS);
if (err || amount != 3)
return false;
return true;
}
static bool bxm_set_CS_low(struct cgpu_info *bitfury)
{
char buf[4] = { 0 };
int err, amount;
buf[0] = SET_OUT_ADBUS;
buf[1] &= ~DEFAULT_STATE; //Bitmask for LOW_PORT
buf[2] = DEFAULT_DIR;
err = usb_write(bitfury, buf, 3, &amount, C_BXM_CSLOW);
if (err || amount != 3)
return false;
return true;
}
static bool bxm_set_CS_high(struct cgpu_info *bitfury)
{
char buf[4] = { 0 };
int err, amount;
buf[0] = SET_OUT_ADBUS;
buf[1] = DEFAULT_STATE; //Bitmask for LOW_PORT
buf[2] = DEFAULT_DIR;
err = usb_write(bitfury, buf, 3, &amount, C_BXM_CSHIGH);
if (err || amount != 3)
return false;
return true;
}
static bool bxm_reset_bitfury(struct cgpu_info *bitfury)
{
char buf[20] = { 0 };
char rst_buf[8] = {0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00};
int err, amount;
//Set the FTDI CS pin HIGH. This will gate the clock to the Bitfury chips so we can send the reset sequence.
if (!bxm_set_CS_high(bitfury))
return false;
buf[0] = WRITE_BYTES_SPI0;
buf[1] = (uint8_t)16 - (uint8_t)1;
buf[2] = 0;
cg_memcpy(&buf[3], rst_buf, 8);
cg_memcpy(&buf[11], rst_buf, 8);
err = usb_write(bitfury, buf, 19, &amount, C_BXM_RESET);
if (err || amount != 19)
return false;
if (!bxm_set_CS_low(bitfury))
return false;
return true;
}
static bool bxm_reinit(struct cgpu_info *bitfury, struct bitfury_info *info)
{
bool ret;
int i;
for (i = 0; i < 2; i++) {
spi_clear_buf(info);
spi_add_break(info);
spi_add_fasync(info, i);
spi_set_freq(info);
spi_send_conf(info);
spi_send_init(info);
ret = info->spi_txrx(bitfury, info);
if (!ret)
break;
}
return ret;
}
static bool bxm_detect_one(struct cgpu_info *bitfury, struct bitfury_info *info)
{
bool ret;
info->spi_txrx = &ftdi_spi_txrx;
ret = bxm_open(bitfury);
if (!ret)
goto out;
ret = bxm_purge_buffers(bitfury);
if (!ret)
goto out;
ret = bxm_reset_bitfury(bitfury);
if (!ret)
goto out;
ret = bxm_purge_buffers(bitfury);
if (!ret)
goto out;
/* Do a dummy read */
memset(info->spibuf, 0, 80);
info->spibufsz = 80;
ret = info->spi_txrx(bitfury, info);
if (!ret)
goto out;
info->osc6_bits = opt_bxm_bits;
/* Only have 2 chip devices for now */
info->chips = 2;
nfu_alloc_arrays(info);
ret = bxm_reinit(bitfury, info);
if (!ret)
goto out;
if (!add_cgpu(bitfury))
quit(1, "Failed to add_cgpu in bxm_detect_one");
update_usb_stats(bitfury);
applog(LOG_INFO, "%s %d: Successfully initialised %s",
bitfury->drv->name, bitfury->device_id, bitfury->device_path);
spi_clear_buf(info);
info->total_nonces = 1;
out:
if (!ret)
bxm_close(bitfury, info);
return ret;
}
static struct cgpu_info *bitfury_detect_one(struct libusb_device *dev, struct usb_find_devices *found)
{
struct cgpu_info *bitfury;
struct bitfury_info *info;
enum sub_ident ident;
bool ret = false;
bitfury = usb_alloc_cgpu(&bitfury_drv, 1);
if (!usb_init(bitfury, dev, found))
goto out;
applog(LOG_INFO, "%s %d: Found at %s", bitfury->drv->name,
bitfury->device_id, bitfury->device_path);
info = cgcalloc(sizeof(struct bitfury_info), 1);
bitfury->device_data = info;
info->ident = ident = usb_ident(bitfury);
switch (ident) {
case IDENT_BF1:
ret = bf1_detect_one(bitfury, info);
break;
case IDENT_BXF:
case IDENT_OSM:
ret = bxf_detect_one(bitfury, info);
break;
case IDENT_NFU:
ret = nfu_detect_one(bitfury, info);
break;
case IDENT_BXM:
ret = bxm_detect_one(bitfury, info);
break;
default:
applog(LOG_INFO, "%s %d: Unrecognised bitfury device",
bitfury->drv->name, bitfury->device_id);
break;
}
if (!ret) {
free(info);
usb_uninit(bitfury);
out:
bitfury = usb_free_cgpu(bitfury);
}
return bitfury;
}
static void bitfury_detect(bool __maybe_unused hotplug)
{
usb_detect(&bitfury_drv, bitfury_detect_one);
}
static void adjust_bxf_chips(struct cgpu_info *bitfury, struct bitfury_info *info, int chip)
{
int chips = chip + 1;
size_t old, new;
if (likely(chips <= info->chips))
return;
if (chips > 999)
return;
old = sizeof(int) * info->chips;
new = sizeof(int) * chips;
applog(LOG_INFO, "%s %d: Adjust chip size to %d", bitfury->drv->name, bitfury->device_id,
chips);
recalloc(info->filtered_hw, old, new);
recalloc(info->job, old, new);
recalloc(info->submits, old, new);
if (info->chips == 2 && chips <= 6 && info->ident == IDENT_BXF)
bitfury->drv->name = "HXF";
else if (info->chips <= 6 && chips > 6 && info->ident == IDENT_BXF)
bitfury->drv->name = "MXF";
info->chips = chips;
}
static void parse_bxf_submit(struct cgpu_info *bitfury, struct bitfury_info *info, char *buf)
{
struct work *match_work, *tmp, *work = NULL;
struct thr_info *thr = info->thr;
uint32_t nonce, timestamp;
int workid, chip = -1;
if (!sscanf(&buf[7], "%x %x %x %d", &nonce, &workid, ×tamp, &chip)) {
applog(LOG_WARNING, "%s %d: Failed to parse submit response",
bitfury->drv->name, bitfury->device_id);
return;
}
adjust_bxf_chips(bitfury, info, chip);
if (unlikely(chip >= info->chips || chip < 0)) {
applog(LOG_INFO, "%s %d: Invalid submit chip number %d",
bitfury->drv->name, bitfury->device_id, chip);
} else
info->submits[chip]++;
applog(LOG_DEBUG, "%s %d: Parsed nonce %u workid %d timestamp %u",
bitfury->drv->name, bitfury->device_id, nonce, workid, timestamp);
rd_lock(&bitfury->qlock);
HASH_ITER(hh, bitfury->queued_work, match_work, tmp) {
if (match_work->subid == workid) {
work = copy_work(match_work);
break;
}
}
rd_unlock(&bitfury->qlock);
if (!work) {
/* Discard first results from any previous run */
if (unlikely(!info->valid))
return;
applog(LOG_INFO, "%s %d: No matching work", bitfury->drv->name, bitfury->device_id);
mutex_lock(&info->lock);
info->no_matching_work++;
mutex_unlock(&info->lock);
inc_hw_errors(thr);
return;
}
/* Set the device start time from when we first get valid results */
if (unlikely(!info->valid)) {
info->valid = true;
cgtime(&bitfury->dev_start_tv);
}
set_work_ntime(work, timestamp);
if (submit_nonce(thr, work, nonce)) {
mutex_lock(&info->lock);
info->nonces++;
mutex_unlock(&info->lock);
}
free_work(work);
}
static bool bxf_send_clock(struct cgpu_info *bitfury, struct bitfury_info *info,
uint8_t clockspeed)
{
char buf[64];
info->clocks = clockspeed;
sprintf(buf, "clock %d %d\n", clockspeed, clockspeed);
return bxf_send_msg(bitfury, buf, C_BXF_CLOCK);
}
static void parse_bxf_temp(struct cgpu_info *bitfury, struct bitfury_info *info, char *buf)
{
uint8_t clockspeed = info->clocks;
int decitemp;
if (!sscanf(&buf[5], "%d", &decitemp)) {
applog(LOG_INFO, "%s %d: Failed to parse temperature",
bitfury->drv->name, bitfury->device_id);
return;
}
mutex_lock(&info->lock);
bitfury->temp = (double)decitemp / 10;
if (decitemp > info->max_decitemp) {
info->max_decitemp = decitemp;
applog(LOG_DEBUG, "%s %d: New max decitemp %d", bitfury->drv->name,
bitfury->device_id, decitemp);
}
mutex_unlock(&info->lock);
if (decitemp > info->temp_target + BXF_TEMP_HYSTERESIS) {
if (info->clocks <= BXF_CLOCK_MIN)
goto out;
applog(LOG_WARNING, "%s %d: Hit overheat temperature of %d, throttling!",
bitfury->drv->name, bitfury->device_id, decitemp);
clockspeed = BXF_CLOCK_MIN;
goto out;
}
if (decitemp > info->temp_target) {
if (info->clocks <= BXF_CLOCK_MIN)
goto out;
if (decitemp < info->last_decitemp)
goto out;
applog(LOG_INFO, "%s %d: Temp %d over target and not falling, decreasing clock",
bitfury->drv->name, bitfury->device_id, decitemp);
clockspeed = info->clocks - 1;
goto out;
}
if (decitemp <= info->temp_target && decitemp >= info->temp_target - BXF_TEMP_HYSTERESIS) {
if (decitemp == info->last_decitemp)
goto out;
if (decitemp > info->last_decitemp) {
if (info->clocks <= BXF_CLOCK_MIN)
goto out;