/*
 * Copyright 2013-2014 Con Kolivas <kernel@kolivas.org>
 * Copyright 2013 Hashfast
 *
 * 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.
 */

#ifndef HASHFAST_H
#define HASHFAST_H

#ifdef USE_HASHFAST
#include "miner.h"
#include "elist.h"
#include "hf_protocol.h"

extern int opt_hfa_ntime_roll;
extern int opt_hfa_hash_clock;
extern int opt_hfa_overheat;
extern int opt_hfa_target;
extern bool opt_hfa_pll_bypass;
extern bool opt_hfa_dfu_boot;
extern int opt_hfa_fan_default;
extern int opt_hfa_fan_max;
extern int opt_hfa_fan_min;
extern int opt_hfa_fail_drop;
extern bool opt_hfa_noshed;

extern char *set_hfa_fan(char *arg);
extern char *opt_hfa_name;
extern char *opt_hfa_options;

#define HASHFAST_MINER_THREADS 1
#define HFA_CLOCK_DEFAULT 550
#define HFA_CLOCK_MIN 125
#define HFA_CLOCK_MAX 1000
#define HFA_CLOCK_MAXDIFF 100
#define HFA_TEMP_OVERHEAT 95
#define HFA_TEMP_TARGET 88
#define HFA_TEMP_HYSTERESIS 3
#define HFA_FAN_DEFAULT 33
#define HFA_FAN_MAX 85
#define HFA_FAN_MIN 5
#define HFA_VOLTAGE_MAX 1000
#define HFA_VOLTAGE_MIN 500
#define HFA_MAGIC_SETTINGS_VALUE 0x42AA

// # Factory Operation Codes
#define OP_SETTINGS             55      // Read or write settings
#define OP_POWER                57

// Matching fields for hf_statistics, but large #s for local accumulation, per-die
struct hf_long_statistics {
	uint64_t rx_header_crc;                     // Header CRCs
	uint64_t rx_body_crc;                       // Data CRCs
	uint64_t rx_header_timeouts;                // Header timeouts
	uint64_t rx_body_timeouts;                  // Data timeouts
	uint64_t core_nonce_fifo_full;              // Core nonce Q overrun events
	uint64_t array_nonce_fifo_full;             // System nonce Q overrun events
	uint64_t stats_overrun;                     // Overrun in statistics reporting
};

// Matching fields for hf_usb_stats1, but large #s for local accumulation, per device
struct hf_long_usb_stats1 {
	// USB incoming
	uint64_t usb_rx_preambles;
	uint64_t usb_rx_receive_byte_errors;
	uint64_t usb_rx_bad_hcrc;

	// USB outgoing
	uint64_t usb_tx_attempts;
	uint64_t usb_tx_packets;
	uint64_t usb_tx_timeouts;
	uint64_t usb_tx_incompletes;
	uint64_t usb_tx_endpointstalled;
	uint64_t usb_tx_disconnected;
	uint64_t usb_tx_suspended;
#if 0
	/* We don't care about UART stats */
	// UART transmit
	uint64_t uart_tx_queue_dma;
	uint64_t uart_tx_interrupts;

	// UART receive
	uint64_t uart_rx_preamble_ints;
	uint64_t uart_rx_missed_preamble_ints;
	uint64_t uart_rx_header_done;
	uint64_t uart_rx_data_done;
	uint64_t uart_rx_bad_hcrc;
	uint64_t uart_rx_bad_dma;
	uint64_t uart_rx_short_dma;
	uint64_t uart_rx_buffers_full;
#endif

	uint8_t  max_tx_buffers;
	uint8_t  max_rx_buffers;
};

/* Private per die data for dynamic clocking */
struct hf_die_data {
	int hash_clock;
	double temp;
	double board_temp;
	time_t last_restart;
};

struct hashfast_info {
	struct cgpu_info *cgpu;                     // Points back to parent structure
	struct cgpu_info *old_cgpu  ;               // Points to old structure if hotplugged same device
	int asic_count;                             // # of chips in the chain
	int core_count;                             // # of cores per chip
	int device_type;                            // What sort of device this is
	int num_sequence;                           // A power of 2. What the sequence number range is.
	int ref_frequency;                          // Reference clock rate
	struct hf_g1_die_data *die_status;          // Array of per-die voltage, current, temperature sensor data
	struct hf_long_statistics *die_statistics;  // Array of per-die error counters
	struct hf_long_usb_stats1 stats1;
	struct hf_die_data *die_data;
	double firmware_version;
	double hardware_version;
	int hash_clock_rate;                        // Hash clock rate to use, in Mhz
	int base_clock;                             // Clock rate we actually got
	struct hf_usb_init_base usb_init_base;      // USB Base information from USB_INIT
	struct hf_config_data config_data;          // Configuration data used from USB_INIT
	int core_bitmap_size;                       // in bytes
	uint32_t *core_bitmap;                      // Core OK bitmap test results, run with PLL Bypassed
	int group_ntime_roll;                       // Total ntime roll amount per group
	int core_ntime_roll;                        // Total core ntime roll amount
	uint32_t serial_number;                     // db->serial_number if it exists
	char op_name[36];
	bool has_opname;
	bool opname_valid;

	pthread_mutex_t lock;
	pthread_mutex_t rlock;
	struct work **works;
	uint16_t hash_sequence_head;                // HOST:   The next hash sequence # to be sent
	uint16_t hash_sequence_tail;                // HOST:   Follows device_sequence_tail around to free work
	uint16_t device_sequence_head;              // DEVICE: The most recent sequence number the device dispatched
	uint16_t device_sequence_tail;              // DEVICE: The most recently completed job in the device
	int64_t hash_count;
	uint64_t raw_hashes;
	uint64_t calc_hashes;
	uint16_t shed_count;                        // Dynamic copy of #cores device has shed for thermal control
	int no_matching_work;
	int resets;
	int overheat;
	int last_max_temp;
	int temp_updates;
	int fanspeed;                               // Fanspeed in percent
	int last_die_adjusted;
	int clock_offset;
	int hash_voltage;                           // Hash voltage to use, in mV

	pthread_t read_thr;
	time_t last_restart;
	time_t last_send;
};

#endif /* USE_HASHFAST */
#endif	/* HASHFAST_H */